CN106219258B - circular stock ground stacker-reclaimer - Google Patents
circular stock ground stacker-reclaimer Download PDFInfo
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- CN106219258B CN106219258B CN201610794964.7A CN201610794964A CN106219258B CN 106219258 B CN106219258 B CN 106219258B CN 201610794964 A CN201610794964 A CN 201610794964A CN 106219258 B CN106219258 B CN 106219258B
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- stacker
- reclaimer
- machine
- centering
- belt conveyor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G65/00—Loading or unloading
- B65G65/28—Piling or unpiling loose materials in bulk, e.g. coal, manure, timber, not otherwise provided for
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G65/00—Loading or unloading
- B65G65/02—Loading or unloading machines comprising essentially a conveyor for moving the loads associated with a device for picking-up the loads
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G69/00—Auxiliary measures taken, or devices used, in connection with loading or unloading
- B65G69/18—Preventing escape of dust
- B65G69/185—Preventing escape of dust by means of non-sealed systems
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Abstract
The invention discloses a circular stockyard stacker-reclaimer, which comprises a rotating door frame part, a bucket wheel reclaiming part, a conveying part and a centering rotary mechanism, wherein the rotating door frame part rotates around the centering rotary mechanism by taking the span of the rotating door frame part as a radius, the bucket wheel reclaiming part and the conveying part are connected with the rotating door frame part, and the circular stockyard stacker-reclaimer comprises: the conveying part consists of a plurality of belt conveyors and is matched with the bucket-wheel material taking part to form a material taking material flow channel and/or a material stacking material flow channel. Different from the existing equipment, the stacker-reclaimer takes the span of the portal as the radius of the actual working range, and the application of the stacker-reclaimer in a circular stock ground is initially realized.
Description
Technical Field
the invention relates to a stacker-reclaimer applied to a circular stock ground, in particular to a stacker-reclaimer of a circular stock ground, belonging to the technical field of bulk material stacking and reclaiming equipment of the circular stock ground.
Background
With the increasing environmental awareness and environmental requirements, reducing the pollution to the surrounding environment becomes an urgent problem to be solved in large-scale modern storage yards, and meanwhile, the influence of severe weather on the safe operation of the storage yard needs to be avoided. The circular stock ground stacker-reclaimer is bulk material stacking-reclaiming equipment, is usually arranged in a circular stock ground, has higher and higher environmental protection requirements along with economic development and social progress, further expands the application of the circular stock ground stacker-reclaimer and has good market prospect.
In order to improve the material taking capability and realize the layered simultaneous material taking of two scraper reclaimers, chinese patent No. CN200720149769.5 discloses a double-scraper stacker-reclaimer, which is arranged in a stock yard surrounded by a ceiling and a material blocking wall, and comprises a central upright post, a cantilever stacker and a gantry type scraper reclaimer, wherein the central upright post is fixed on the basis of the stock yard in the center of the stock yard, the cantilever stacker and the gantry type reclaimer use the central upright post as a rotation center, one end of the scraper reclaimer is hinged with the lower part of the gantry, the other end is hinged on the gantry, the hanging shape of the gantry corresponds to the shape of the stock pile in the circular stock yard, one end of the gantry is pivoted with the central upright post, the other end is supported on a circular track on the upper part of the material blocking wall, and the circular trackThe reclaimer is two scraper reclaimers arranged on the portal. Although two simultaneous operations of getting the material simultaneously are set up through two-layer the branch, have promoted the production efficiency who gets the material, nevertheless also the several defects of this kind of equipment are leaked suddenly in a large amount of practices: (1) the production capacity of the scraper is restricted by the limitation of the driving mode and the structural size of the scraper, and the maximum material taking production capacity of the scraper under the structural form of double scraper arms only reaches 3000m in the prior art3H; (2) the scraper reclaimer is not suitable for being used in a viscous material environment, and the problem of adhesion of a viscous material to a scraper cannot be solved well all the time; (3) the scraper reclaimer is not suitable for the occasions with too large material granularity and too many lump materials, and the scraper and a scraper chain are easily damaged due to the too large material granularity and the too many lump materials.
In order to scrape along the whole windrow inclined plane and get, scrape the fill and carry out reciprocating motion along the girder, carry out the full section and get the material, chinese patent No. CN201320034371 discloses following scheme in the patent of the name "bridge type side scraper reclaimer and system", a bridge type side scrapes fill reclaimer and includes: the cantilever scraper device comprises a plurality of scrapers, a track for the operation of the scrapers, a scraper drive for driving the scrapers to operate and a cantilever for supporting the track. Bridge type side scraper reclaimer leads to the bucket wheel to get the material operation and must have the supplementary structural feature of rake because its lifing beam is in the stock ground bottom, causes the following limitation of existence in the in-service use: (1) because the lifting beam is fixed on the traveling device, the cantilever scraping device is mainly arranged at the lower end of the material pile, and the angle between the cantilever scraping device and the material pile is adjusted by the pitching device hinged to the middle upper part of the cantilever, the multi-dimensional material taking of the bucket wheel material taking part can not be realized, and the material taking capability is limited; (2) because the height direction of the main beam is fixed, the scraper device of the cantilever repeatedly moves back and forth along the length direction of the main beam to take materials, so that the material removing device cannot realize targeted material stacking and material taking by crossing a material pile; (3) due to the limitation of the structure, the material taking hopper can only pile the same material, and can not pile a plurality of different materials at the same material yard.
The scraper stacker-reclaimer for the circular stock ground has advanced technology, high program control level, small occupied area, large storage capacity and outstanding environmental protection performance, so that the scraper stacker-reclaimer for the circular stock ground is more and more accepted by various industries. Particularly, with the requirement of increasingly large capacity of the transfer throughput of ports and material transfer stations, it is necessary to develop a material stacking and taking device which has large (ultra-large) production capacity, strong adaptability to materials and reliable technology. However, the circular stock yard cannot realize layering and cross stock pile stacking and material taking, so that various materials cannot be stored in one stock yard, and cross access of various materials in the same stock yard cannot be realized.
This also constitutes a need for further improvements in the design of the stacker-reclaimer machines to address the technical problems presented.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide a circular stockyard stacker-reclaimer, which realizes the selective stacking and reclaiming across stockpiles by adopting a centering rotary mechanism, breaks through the limitation that a bridge type bucket-wheel reclaimer cannot cross the circular stockpiles, and makes it possible to store and take a plurality of materials in one stockyard respectively.
According to the purpose of the invention, the circular stockyard stacker-reclaimer comprises a rotating door frame part, a bucket-wheel material-taking part, a conveying part and a centering revolving part, wherein the rotating door frame part rotates around the centering revolving part by taking the span of the rotating door frame part as a radius, the bucket-wheel material-taking part and the conveying part are connected with the rotating door frame part, and the circular stockyard stacker-reclaimer comprises:
The conveying part consists of a plurality of belt conveyors and is matched with the bucket-wheel material taking part to form a material taking material flow channel and/or a material stacking material flow channel.
preferably, the rotating gantry part is a rectangular gantry, and accordingly, the rotating gantry part rotates around the centering rotary part as a circle center to jointly form a rotary truss of the circular stockyard stacker-reclaimer.
preferably, the revolving gantry part comprises a cross beam, gantry legs and a central shaft (spindle); furthermore, in order to obtain a larger working space as much as possible, the support legs of the portal frame and the central shaft (core shaft) are arranged in parallel and are respectively and independently connected with two ends of the cross beam to form the portal frame.
More preferably, the centering turnarounds are sleeved on the middle shaft.
Further preferably, the cross-member is hinged to the mast legs to provide adjustment for adjusting the pivoting mast portion against rail stress or rigid rotation.
It is further preferred that the mast legs are hinged to the end bottom surfaces of the cross beam in order to attenuate the influence of lateral stresses on the revolving mast portion during rotation.
Still further preferably, the other ends of the mast legs remote from the cross-beam are connected to a running gear which stands vertically on the ground. In other words, the walking mechanism drives the gantry support legs to drive the whole rotating gantry part to form a driving end for driving the rotating gantry part to rotate; thereby, the rotary door frame part rotates by taking the central shaft as the center, in other words, the centering rotary part as the center. Correspondingly, under the transmission of drive end, use the stiff end to restrict revolving door frame portion rotation track as the centre of a circle for under the effect of gyration end, make the crossbeam revolve around centering gyration portion, simultaneously, through the timing end, can be effective elimination and overcome revolving door frame portion in the track stress of rotation in-process or because the problem of rigid rotation.
As a preferred embodiment, in order to reduce the friction resistance during the rotation process, the cross beam is connected with the central shaft through a rotation bearing seat, so that the cross beam rotates around the central shaft as the center of a circle.
still further preferably, the beam is provided with pulley seats and hoisting bases, the pulley seats are arranged at two ends of the top surface of the beam at intervals and are symmetrically arranged along the geometric center of the length direction of the beam, the hoisting bases are arranged at two ends of the bottom surface of the beam at intervals and are symmetrically arranged along the geometric center of the length direction of the beam, and the pulley seats and the hoisting bases are symmetrically distributed, so that the stress at two ends of the beam is balanced, and the load borne by the whole beam is more uniformly distributed.
In a preferred embodiment, the mast legs comprise support legs, which are hinged at their upper ends to the cross member and at their lower ends extend downwards perpendicular to the cross member, and running gear fixed to the support legs. Preferably, the walking mechanism is arranged at the tail end of the supporting leg far away from the cross beam and is integrally fixed with the supporting leg. Therefore, the supporting legs are driven to drive the cross beam to move together through the movement of the walking mechanism, and therefore the whole revolving gantry part rotates around the centering rotary part.
as another preferred embodiment, the walking mechanism comprises a walking mechanism hinged support integrally fixed with the supporting leg, a driving wheel in driving connection with the walking mechanism hinged support and a guide rail for guiding the driving wheel to move forwards, wherein the top end of the walking mechanism hinged support is fixed at the bottom of the supporting leg and extends downwards; the driving wheel is embedded into the traveling mechanism hinged support, clamped between the traveling mechanism hinged support and the guide rail and rotatably fixed with the traveling mechanism hinged support; the guide rail is fixed on the ground and extends along the advancing direction of the rotary door frame part. The driving wheel is guided and limited to move along the preset track through the guide rail, so that the walking mechanism is ensured to walk according to the set track. Furthermore, in order to realize the automatic rotation of the landing legs of the portal frame and realize accurate stroke control, the gantry crane further comprises a driving motor which is fixed with the hinged support of the walking mechanism into a whole and is connected with the driving wheel in a driving mode, and therefore the driving wheel can be accurately controlled through the driving motor to drive the landing legs to move together. Furthermore, in order to better satisfy the swinging angular displacement of the gantry supporting legs in the span direction and the torsion displacement of the gantry supporting legs in the rotation operation of the rotating gantry part, the rotating gantry further comprises a rotating ball hinge which is connected with the supporting legs and clamped between the cross beam and the supporting legs. Preferably, the rotary ball hinge is arranged at the top end of the supporting leg and is integrally fixed with the supporting leg.
Preferably, bucket-wheel material taking part includes bucket wheel machine and lifting beam, and the bucket wheel machine is fixed on the lifting beam and along with the lifting beam motion in the lump.
More preferably, the lifting beam is parallel to the cross beam and simultaneously connected with the gantry support legs and the middle shaft; preferably, the lifting beam is sleeved with the middle shaft through the centering rotary part, so that the lifting beam can rotate along with the rotary gantry part; in addition, the centering revolving part can vertically lift along the middle shaft, and correspondingly, the lifting beam can lift in the hollow part of the rotating door frame, so that the material taking of the bucket wheel machine at different heights can be realized.
More preferably, the bucket wheel machine can move horizontally along the lifting beam and lift and/or rotate along with the lifting beam; the material taking position of the bucket wheel machine relative to the material pile can be changed as required, so that layered material taking of the bucket wheel material taking part and material pile crossing material selection and taking can be realized, the limitation that the existing material taking machine cannot cross material piles to take materials is broken through, and multiple materials can be stored in one stock ground and can be respectively stored and taken out; the bucket wheel machine is used as an actuating mechanism for taking materials, so that the adaptability of the taking mechanism to the physical characteristics of the materials is enhanced, the failure rate is low, and the maintenance is simple; the advantages of high material taking efficiency, strong stability and the like of the bucket wheel machine can be fully utilized to obtain an improved bucket wheel stacker-reclaimer with great material taking amount.
More preferably, in order to ensure that the lifting beam can still stably lift under high load, the lifting beam is matched with a lifting mechanism to drive the lifting beam to lift.
Preferably, the lifting mechanism comprises a hoisting assembly, a fixed pulley block, a movable pulley block and a steel rope, the hoisting assembly and the fixed pulley block are fixed at the landing leg of the gantry of the revolving gantry part, the movable pulley block and the lifting beam are integrally fixed, one end of the steel rope is fixed with the lifting beam, and the other end of the steel rope, which is arranged oppositely, is fixed with the hoisting assembly in a rolling and extending manner through the fixed pulley block and the movable pulley block. Through the connection that the length between the steel rope and the hoisting assembly can be rolled and stretched, the lifting beam is driven to change in the vertical direction and the height can be switched under the action of the fixed pulley block and the movable pulley block, so that the switching of the height position of the bucket wheel machine fixed on the lifting beam is changed; therefore, the material taking height can be adjusted according to requirements, so that lifting layered material taking is realized. It is worth mentioning that when the portal cooperates the gyration, the bucket wheel gets the material portion and goes up and down, has creatively realized the work of strideing across the stockpile in circular stock ground, has broken through a great deal of limitations of current equipment for it is possible to deposit multiple material and access respectively in a stock ground.
Preferably, the conveying part comprises a stacking belt conveyor, a material taking belt conveyor and a trapezoidal distributing machine, the material taking belt conveyor is matched with a bucket wheel machine to finish material taking logistics, and the stacking belt conveyor and the trapezoidal distributing machine finish stacking logistics. When the stacker-reclaimer reclaims materials, the materials are conveyed to a reclaiming belt conveyor after being reclaimed by a bucket wheel reclaiming part, and then a blanking channel is matched to complete the combined reclaiming process of reclaiming and blanking; when stacking, the stacking is completed by matching the stacking belt conveyor with a feeding channel (a chute hopper); different from the existing equipment, the gantry of the stacker-reclaimer can rotate around the centering rotary part, in other words, the stacker-reclaimer takes the span of the gantry as the radius of the actual working range, and the application of the stacker-reclaimer in a circular stock ground is realized for the first time. Preferably, get the material belt feeder and establish on the lifing beam equally and link up with bucket wheel machine, accomplish and get the material process. Get the material belt feeder with establish inside revolving door frame portion, in order to realize getting of big span, preferably, get the material belt feeder cooperation revolving door frame portion span and with the setting of lifting beam isometric basically.
More preferably, the stacking belt conveyor and the trapezoidal distributing machine are arranged on the same cantilever beam. As a preferred embodiment, in order to realize the automatic conveying of materials and the rapid stacking and storage, one end of the stacking belt conveyor is connected with the rotary gantry part, and the other end of the stacking belt conveyor is connected with the trapezoidal distributing machine. In another preferred embodiment, the cantilever beam is sleeved with the middle shaft through a bearing seat and can rotate around the middle shaft. As a better implementation mode, the connecting position of the cantilever beam and the middle shaft is higher than the connecting position of the cross beam and the middle shaft. At the moment, the material piling and material taking can be carried out simultaneously, the cantilever beam and the rotary door frame part can rotate around the center shaft (centering rotary part), in other words, the rotary door frame part and the cantilever beam can form any angle of 0-360 degrees, so that the material piling and taking process of the material piling and taking machine can be completed in any area in a circular material yard. The height of the stockpile is fixed, and the stockpile is finished by throwing the stockpile from the high position.
more preferably, the trapezoidal distributing machine is driven by a trolley travelling mechanism; as a better implementation mode, the trapezoidal distributing machine horizontally moves along the cantilever beam through the trolley travelling mechanism. Preferably, in order to better realize the conveying and transferring of materials, obtain higher utilization rate of a stock ground and improve the stacking capacity of the stock ground, the trolley traveling mechanism and the trapezoidal distributing machine are matched into a whole and are in driving connection with the stacking belt conveyor. Preferably, the trolley travelling mechanism can travel back and forth in two directions.
Further preferably, the material conveying is achieved through a material sliding hopper communicated with the material yard outer belt conveyor trestle, and conveying of materials inside and outside the material yard is achieved. Further, in order to facilitate the outlet end of the material sliding hopper to keep synchronous rotation with the stacking belt conveyor, the material stacking device further comprises a trestle rotation support seat which is clamped between the belt conveyor trestle and the material sliding hopper and keeps communicated with the trestle rotation support seat.
Preferably, in order to realize the balance in the stacking process and ensure that the stacking belt conveyor keeps balance and does not shake or shake in the rolling stacking operation process, the stacking belt conveyor further comprises a balance part for balancing a cantilever beam, wherein the balance part is arranged on two sides of the middle shaft and comprises a first pull rod and a second pull rod.
More preferably, the first pull rod and the second pull rod are respectively connected with two ends of the cantilever beam so as to realize the deformation of the cantilever beam in the process of dispersing and stacking materials.
Further preferably, the balancing part further comprises a weight fixed to the cantilever beam to shorten the length of the cantilever beam on the non-stacking side and ensure a balancing effect.
Still further preferably, the first pull rod lock is sleeved between one end of the cantilever beam fixed counterweight and the middle shaft; the second pull rod lock sleeve is arranged between one end of the cantilever beam far away from the balancing weight and the middle shaft. The tension of the two ends of the first pull rod and the second pull rod is adjusted to offset or balance the deformation of the conveying part caused by the deflection of the conveying part. Preferably, the length of the second pull rod is greater than that of the first pull rod, so that the occupied space of the whole cantilever beam, namely the stacking equipment, is saved.
As another preferable scheme of the balancing part, the balancing part comprises a first pull rod and a second pull rod which are respectively arranged at two sides of the middle shaft, the first pull rod is respectively hinged with the middle shaft and the cross arm, and the second pull rod is respectively hinged with the middle shaft and the cantilever beam.
More preferably, first pull rod and xarm articulated position coincide with the biggest position of the crossbeam deflection of revolving door frame portion to this, the deflection of crossbeam self through revolving door frame portion is out of shape, provides the pulling force of balanced conveying portion, with this, need not extra balancing weight and can realize the dynamic balance of whole conveying portion, simultaneously, also solved because revolving door frame portion span is very big, because the deformation that the deflection brought has promoted the bulk strength of whole revolving door frame portion easily.
more preferably, for the convenience of maintenance and overhaul, the first pull rod and the second pull rod are symmetrically distributed relative to the axis of the middle shaft, so that the rebalance adjustment between the stacking equipment and the material taking equipment can be realized only by the equidistant adjustment of the first pull rod and the second pull rod.
Preferably, the centering revolving part comprises a fixed supporting mechanism fastened with the ground into a whole, a middle shaft (mandrel) clamped between the fixed supporting mechanism and the rotating door frame part and connected with the fixed supporting mechanism, and a fixed axis for revolving the rotating door frame part is provided through the middle shaft (mandrel) connected with the fixed supporting mechanism, so that the semi-door type truss is driven to revolve around the centering revolving part in a circulating manner. Preferably, the middle shaft (core shaft) and the fixed support mechanism are integrally fixed.
More preferably, the centering rotary part comprises a fixed supporting mechanism, a middle shaft (core shaft) connected with the fixed supporting mechanism, and a centering rotary mechanism sleeved on the middle shaft (core shaft), and the fixed supporting mechanism is fixed on the ground; one end of the middle shaft (core shaft) is fixed with the fixed supporting mechanism, and the other end which is arranged oppositely extends upwards along the vertical direction; the centering rotary mechanism and the bucket wheel material taking part are integrally fixed, and can move along the axial direction of the central shaft (core shaft) when rotating relative to the central shaft (core shaft). Therefore, under the limitation and the guidance of the centering and rotating mechanism, the bucket-wheel material taking part fixed with the centering and rotating mechanism can rotate relative to the central shaft (the central shaft), and can move along the axis direction of the central shaft (the central shaft), so that the bucket-wheel material taking part can be fixed in a manner of randomly switching the position relative to the horizontal direction and the vertical direction of a material pile, the material taking of the material taking machine across the material pile is realized, and multiple materials can be stored in one material yard and can be respectively stored and taken out.
Further preferably, the fixed support mechanism comprises a base, a cylinder fixed on the base and at least one axial guide rail arranged on the outer peripheral surface of the cylinder and protruding outwards in the radial direction of the cylinder, the base is fixedly connected through a bolt, the cylinder is integrally connected with the base, and the axial guide rails are uniformly distributed on the outer peripheral surface of the cylinder and extend in the axial direction of the cylinder. Through the axial guide rail who sets up, ensure bucket wheel and get material portion and can follow the axial highly variable motion of cylinder. Further, the axial guide rail is a plane perpendicular to the radial direction of the cylinder and is fixed with the cylinder in an integrated mode, a section which is not a perfect circle is formed on the outer peripheral surface of the cylinder, therefore, the rolling bodies moving in a matched mode with the axial guide rail are limited on the uniformly distributed axial guide rail, and the rotary motion around the axis of the cylinder is avoided. Furthermore, in order to facilitate the centering of the rotary motion of the rotary part and the rotary gantry part, the top bearing seat is fixed at the top end of the column body.
Preferably, in order to overcome the defect that the existing equipment (bridge stacker-reclaimer) cannot work across a stock ground, the revolving and lifting functions of the existing equipment must be added, the centering revolving, translating or lifting movement is realized at the same time, the centering part can be supported and limited to play a role of a bearing, the centering revolving mechanism is divided into a centering ring and a rotating ring which are sleeved with each other at the same center, a first rolling assembly is arranged between the centering ring and the rotating ring, the center line of the first rolling assembly is coaxially arranged with the centers of the centering ring and the rotating ring, and the rotating ring is radially positioned and supported through the first rolling assembly. Preferably, the first rolling assembly is composed of a plurality of first rolling members, each first rolling member comprises a first roller, a first support and a shaft support, each first roller is fixedly connected with the outer surface of the centering ring through the corresponding first support, each first roller is tangent to the inner surface of the rotating ring, and the rotating ring rotates around the centering ring by taking the inner diameter of the rotating ring as a track under the guidance of the corresponding first rolling assembly to complete centering rotary motion. As a preferred solution of this embodiment, the first roller is connected to the first support via a shaft support, in other words, the rolling (moving) carrier is arranged inside the first roller.
Still preferably, in order to ensure the stability and the bearing rationality of the whole centering and revolving mechanism during movement, the centering ring is respectively composed of a first centering ring (upper ring), a second centering ring (lower ring) and a centering ring connecting frame, the first and second centering rings are symmetrically arranged and are connected into a whole through the centering ring connecting frame, in other words, the first and second centering rings are respectively and fixedly connected with two ends of the centering ring connecting frame; a plurality of first rolling parts are arranged on the outer surfaces of the first centering ring and the second centering ring respectively to ensure the rotation stability of the rotating ring. Correspondingly, the rotating ring is also divided into a first rotating ring and a second rotating ring, the first centering ring is sleeved with the first rotating ring in a concentric mode, the second centering ring is sleeved with the second rotating ring in a concentric mode, and the inner surface of each ring body is tangent to the first roller part to form a rotating guide rail.
still further preferably, the inner surfaces of the first and second centering rings are provided with second rolling assemblies, so that the entire centering and rotating mechanism can vertically move along the rotating direction under the guidance of the second rolling assemblies while rotating, namely, the first rolling assemblies vertically move along the central line direction; the second rolling assembly consists of a plurality of second rolling parts, and the second rolling parts consist of a second roller, a second shaft support and a second support; likewise, the rolling (moving) carrier is arranged within the second roller. As a better implementation mode, a plurality of second rolling pieces are additionally arranged at the two end parts of the first centering ring and the second centering ring, which are not connected with the centering ring connecting frame, so as to ensure the stability of the whole centering rotary mechanism during movement; the second rolling member can be additionally arranged according to the bearing or moving rigidity requirement, so that the movement stability is guaranteed, and the uniqueness of the specific position of the second rolling member is not considered.
Still more preferably, in order to eliminate radial offset in the rotation direction and axial displacement caused by the difference in linear velocity when the rotating ring moves along with the centering ring, in other words, to meet the requirement that the centering and rotating mechanism can synchronously move axially along with the rotating and axially moving functional executing components, the inventor adds a third rolling assembly for axial position limitation of the rotating ring on the basis of the above, wherein the third rolling assembly is composed of a plurality of third rolling members, each of the third rolling members comprises a third roller pair, a shaft support pair and a third support, the third roller pair is independently connected with the third support through the shaft support pair, the third support is connected with the outer surface of the ring body of the first and second centering rings, and the third roller pair sandwiches two ends of the ring body of the rotating ring. Preferably, the third roller is a conical wheel, and correspondingly, the smaller part of the conical wheel is close to the centering ring; the rotating ring is clamped between the conical clamping wheel pairs, so that two end faces of the first rotating ring and the second rotating ring are respectively provided with a track of the third roller pair, and the distance between rolling circles of each third rolling element and the thickness direction of the guide rail of the rotating ring body matched with the rolling circle form a rolling pair, so that the centering rotary mechanism can simultaneously perform rotary motion when realizing axial motion. In a preferred embodiment, the taper of the cone pulley is selected by the rotation speed, and is preferably an angle formed by a speed angle generatrix meeting with the rotation central point of the mechanism so as to ensure that the rolling circle of the third rolling assembly is in a constant linear speed taper; the centering slewing mechanism can realize constant speed angle of the big end and the small end when rotating so as to ensure the stability of slewing and the bearing rigidity and ensure that the friction force is the minimum value.
In a preferred embodiment, the center lines of the first, second and third rolling assemblies are coaxially arranged, and the rolling members are uniformly arranged along the circumference, preferably staggered. At this time, the extension line of the connecting line of the rolling circle center of the first rolling assembly (radial rolling element) and the axial center point of the second rolling assembly (axial rolling element) passes through the rotating center points of the rotating ring and the centering ring.
As a preferred embodiment, the centering rotation portion further includes a sleeve that is disposed on the central shaft (core shaft).
In a preferred embodiment, the centering and swiveling mechanism is integrally mounted to the end of the lifting beam, so that the lifting beam can be swiveled and/or lifted along the center axis by the centering and swiveling mechanism.
As a better implementation mode, the device also comprises a dustproof mechanism which covers the top end of the fixed supporting mechanism; through dustproof mechanism, avoided effectively piling the material in-process, the dust gets into inside fixed stay mechanism and various adverse effects that lead to.
What have worth mentioning, there is very big blanking (can reach the surplus rice) in order to satisfy blanking point and receive the material point, realize controlling swift current material speed under the high-order perpendicular transport operating mode of bulk cargo, it is stifled to avoid the conveying chain to accept end link stopper, and reduce fragile material damage, reduce the impact, the noise reduction, reduce the dust that gas impacted the production to the material, be convenient for the material heap to get the material portion through the bucket wheel and take out the material, still include with the bucket wheel get the blanking passageway portion that the liftable of material portion switches the intercommunication, blanking passageway portion presss from both sides and establishes inside revolving door frame portion, and fix into an organic whole with it. With this, through the blanking passageway portion that switches the intercommunication with bucket wheel material taking part liftable, can realize receiving the direct transportation operating mode of material respectively in different high positions. In the process that the materials are thrown to the blanking channel part through the material taking belt conveyor, because the materials are stacked on the material taking belt conveyor and have height difference, envelope lines of parabolic clusters of the materials in a projectile motion body are easily formed in the material throwing process. The throwing distance is farthest, the envelope line with the highest height is the upper envelope line in the material throwing process, the throwing distance is closest, the envelope line with the lowest height is the lower envelope line in the material throwing process, and the materials are clamped between the upper envelope line and the lower envelope line in the material throwing process, so that the materials are extremely easy to scatter and dust is easy to fly in the material throwing process. In view of the above technical problems, another object of the present invention is to provide a multi-position curved blanking channel, specifically, the blanking channel includes a bucket body having a cavity therein, a centering hinge hinged to the bucket body, and at least one blanking opening opened on the bucket body and capable of being closed, and at least one group of blanking assemblies embedded inside the bucket body and having an arc-shaped blanking channel therein, the arc-shaped blanking channel of the blanking assembly extends from the inner side of the blanking opening to the inner cavity of the bucket body, and the flow area inside the arc-shaped blanking channel of the blanking assembly is gradually changed.
Preferably, along the advancing direction of material, each group of blanking subassembly communicates end to end, forms the arc passageway that the synthetic camber of enclosing by panel changes in the bucket body inside. The arc-shaped channel with the curvature fluctuation change of the gradually-changed overflowing area arranged through the blanking component receives the dust raised from the inside of the material when the material is thrown from the throwing roller.
Furthermore, in order to ensure the accuracy of the matching position of the blanking channel part and the throwing roller, the centering hinge shaft is arranged at the top end of the hopper body and is fixed with the hopper body in a penetrating way.
Further preferably, the blanking subassembly is met the flitch and is led to the swift current flitch including fixing the curve in the internal portion of bucket, and along the vertical direction, the top height that the flitch was met to the curve is not less than blanking mouth open-ended top height, and its bottom extends downwardly in the internal cavity of bucket, leads the swift current flitch top height and is less than the open-ended bottom height of blanking mouth, and its bottom extends along the direction that meets the flitch bottom by drawing close the curve.
Still further preferably, the curved material receiving plate, the guiding material sliding plate and the side wall of the bucket body are jointly enclosed to form an arc-shaped channel with a gradually reduced flow area. Therefore, the dust generated by the thrown material can be effectively inhibited.
Further preferably, in order to make the space between the upper envelope and the lower envelope formed by the thrown material as small as possible, the space for dust emission is further compressed, the inner wall of the curved material facing plate is tangent to the upper envelope of the material, and the outer wall of the guiding material sliding plate is tangent to the lower envelope of the material.
In order to reduce the impact damage of the materials caused by the higher position of the cavity in the hopper body, in any structure, the blanking assembly preferably further comprises a first transfer material sliding plate and a second transfer material sliding plate which are used for gathering the material flow, the first transfer material sliding plate is fixed at the tail end of an arc-shaped channel which is jointly surrounded by the curve material receiving plate, the guide material sliding plate and the side wall of the hopper body, and the height of the top end of the first transfer material sliding plate is not lower than that of the top end of the arc-shaped channel; the height of the top end of the second transfer material sliding plate is not lower than that of the bottom end of the first transfer material sliding plate, and the bottom end of the second transfer material sliding plate extends along the falling direction of the materials. Furthermore, the bottom end of the second transfer material sliding plate is connected with the curve material receiving plate of the next group in a smooth transition mode. Therefore, materials entering the blanking channel from the top can advance along the blanking channel similar to a sine curve under the action of the first transfer material sliding plate and the second transfer material sliding plate, the falling speed of the materials can be effectively reduced, the advancing speed of the materials is slowed down, and the friction angle between the materials and the material sliding plates is further reduced through the material sliding channels in smooth transition from the head to the tail, so that the dispersion of the materials is reduced, and meanwhile, the noise in the falling process of the materials is reduced.
On the basis of the structure, the inventor also provides another preferable scheme, specifically, the direction of the anchor point of the curve material receiving plate is opposite to that of the anchor point of the first transfer material sliding plate, and the flow area of the channel defined by the curve material receiving plate and the side wall of the hopper body is larger than that of the channel defined by the curve material receiving plate and the first transfer material sliding plate. Therefore, in the process that the material falls in the cavity in the hopper body, the airflow is in a channel formed by the curved material receiving plate with a large flow area and the side wall of the hopper body, the airflow flows through the channel formed by the curved material receiving plate and the first transfer material sliding plate, when the airflow limited in the hopper body passes through a reduced flow cross section, the flow velocity of the fluid is increased, the airflow is reduced from thick to thin, the flow velocity of the gas is accelerated, the gas forms a low-pressure area on the rear side (the next group of material inlet openings) of the curved material receiving plate, the next group of material inlet openings communicated with the gas actively form the airflow under the action of the atmospheric pressure, and dust flying of the material at the material inlet openings is further avoided.
The invention also aims to provide a stacker-reclaimer with adjustable stacking height, which is different from the structure in that the conveying part comprises a stacker-reclaimer belt conveyor, a reclaimer belt conveyor and a trapezoidal distributing machine, wherein the reclaimer belt conveyor, the trapezoidal distributing machine and the stacker-reclaimer belt conveyor are all arranged on the lifting beam and lift along with the lifting beam so as to realize the adjustable stacking height. The material taking belt conveyor is matched with the bucket wheel machine to finish material taking logistics, and the material stacking belt conveyor and the trapezoidal material distributing machine finish material stacking logistics. Through the structure of optimizing conveying part, will get material and two operation processes of windrow combine, need not extra cantilever beam and balancing part and connect work piece etc. be adapted to and get the material stock ground that material and windrow do not go on simultaneously.
Preferably, the conveying section is provided in the revolving gantry section and rotates together.
More preferably, windrow belt feeder one end links up revolving door frame portion, and the other end links up trapezoidal cloth machine. At the moment, the stacking process can be lifted up and down, the problem of dust emission can be solved by only stacking with the height in the prior art, the environment is protected more, the efficiency is high, and the structure is simplified more.
More preferably, the horizontal transmission span of the material taking belt conveyor and the stacking material taking belt conveyor is equal to the span of the rotating door frame, so that the bucket wheel machine can complete the material taking process by matching with the material taking belt conveyor and the stacking material taking belt conveyor in the material taking process.
Preferably, in order to achieve uniform stacking and material taking of the material pile as much as possible and improve the utilization rate of the material yard, the trapezoidal distributing machine is movably fixed at the bottom of the material taking belt conveyor, in other words, is located below the lifting beam and is driven by the trolley travelling mechanism to translate along the lifting beam.
As an implementation mode of preferred, for better windrow, the windrow belt feeder divide into first windrow material portion and second windrow material portion, first windrow material portion sets up with the windrow belt feeder collineation, and first windrow material portion one end links up blanking passageway portion, the not high blanking mouth of accessible lift cooperation, the one end of second windrow material portion is connected to the first windrow material portion other end, arrange and link up trapezoidal distributing machine of second windrow material portion slope, this moment, second windrow material portion slope sets up, reducible windrow material height difference between windrow belt feeder and trapezoidal distributing machine.
Compared with the prior art, the stacker-reclaimer provided by the invention has the following unique advantages:
1. The problem that material piling and taking are realized by crossing a material pile in a circular stock ground is solved for the first time;
2. the simultaneous material stacking and taking under the simplified structure is realized for the first time;
3. The stacking height can be initially adjusted;
4. The material taking position is set as required for the first time, and the setting can be carried out along three dimensions of space; therefore, layered material taking of the bucket-wheel material taking part and material taking of the material piles selected across the material piles can be realized, the limitation that the existing material taking machine cannot take materials across the material piles is broken through, and multiple materials can be stored in one stock ground and can be stored and taken out respectively;
5. The problems of low manufacturing precision of the circular track of the gantry circular stock yard and sedimentation and deformation of a foundation in use are solved;
6. The bucket wheel machine is used as an actuating mechanism for taking materials, so that the adaptability of the taking mechanism to the physical characteristics of the materials is enhanced, the failure rate is low, and the maintenance is simple; the advantages of high material taking efficiency, strong stability and the like of the bucket wheel machine can be fully utilized to obtain an improved bucket wheel stacker-reclaimer with great material taking amount;
7. The multiple belt conveyors are used in a matched mode, so that an improved stacker-reclaimer with large stacking quantity and high efficiency is obtained;
8. The blanking channel part is designed for the first time, a blanking channel with a changeable flow area is formed in the blanking channel part, the side wall of the blanking channel part is an enveloping curve at the upper part of a material throwing track at a material receiving point according to an unloading belt conveyor, a curve material receiving plate is designed, and a guide space is formed by the curve material receiving plate and the curve material sliding plate at the lower part of the material throwing track for guiding the material flow direction, so that the purposes of reducing impact, gathering the material flow, reducing dust generated by the impact of gas on the material and reducing noise are achieved; a curve transfer material sliding plate is designed at the lower part of a curve material facing plate by combining the factors such as material sliding speed, a cut-in angle, friction characteristics and the like, so that the material is naturally guided and does not disperse in the downward sliding process, the dust generated by the impact of gas on the material is reduced, and the sliding speed of the material is controlled; a plurality of curve material flowing plates are adopted to transfer between a receiving point and a blanking point, downward sliding speed is controlled by using curves according to the friction characteristic of bulk materials, and mutual relay is realized, so that not only is high-position vertical transfer of the bulk materials realized, but also the impact of the sliding speed can be controlled to reduce the damage of brittle materials;
9. the centering swing mechanism is designed for the first time, and needs to simultaneously perform swing motion and linear motion by being simultaneously assembled with a first rolling assembly machine member and a second rolling assembly machine member; the composite movement is realized by adopting the independent kinematic pair combination, so that each part has simple structure, easy manufacture and convenient maintenance; the ring body is provided with a rolling pair consisting of a plurality of first, second and third rolling parts, so that the requirements of the vertical and rotary directional movement functions of the mechanism are met, and the assembled large-scale equipment can bear the three-dimensional space load generated in operation at each station on the spot; by adopting the second rolling assembly, the required precision of the linear guide rail matched with the mandrel is reduced, and the linear guide rail is easy to manufacture and convenient to maintain; the centering rotary mechanism is arranged on a machine part with a linear motion function, the third rolling assembly is driven, and the degree of freedom of the moving part body is restrained through the third rolling assembly, so that the purpose of simultaneously finishing linear motion positioning and circle center centering at any position is realized.
In summary, the invention provides a circular stock ground stacker-reclaimer for the first time, which overcomes the problem of low stacker-reclaimer efficiency of the existing equipment to the circular stock ground, and also realizes the long-standing technical prejudices of stacking and reclaiming materials with different heights, crossing stock piles and the like; the multipurpose stacker-reclaimer has extremely high working efficiency, is environment-friendly and has wide application prospect.
Drawings
Fig. 1 is a schematic structural diagram of a stacker-reclaimer according to the present invention;
FIG. 2 is a schematic structural view of a rotating gantry portion of a stacker-reclaimer according to the present invention;
FIG. 3 is a schematic structural diagram of a running mechanism adapted to a stacker-reclaimer according to the present invention;
Fig. 4 is a schematic structural diagram of the interior of the stacker-reclaimer provided by the present invention;
FIG. 5 is a partially enlarged view of a centering rotary adapted for a stacker-reclaimer according to the present invention;
FIG. 6 is a partially enlarged view of a centering rotary adapted for a stacker-reclaimer according to the present invention;
FIG. 7 is a schematic view of a centering turret adapted for a stacker-reclaimer according to the present invention;
FIG. 8 is a top view of a centering turret adapted for a stacker-reclaimer provided in accordance with the present invention;
FIG. 9 is an enlarged view of a portion of a centering turret adapted for a stacker-reclaimer according to the present invention;
FIG. 10 is an enlarged view of a portion of a centering turret adapted for a stacker-reclaimer according to the present invention;
FIG. 11 is an enlarged view of a portion of a centering turret adapted for a stacker-reclaimer according to the present invention;
FIG. 12 is a schematic view of a blanking channel portion of a stacker-reclaimer according to the present invention;
FIG. 13 is a right side view of a blanking channel portion adapted for a stacker-reclaimer according to the present invention;
Fig. 14 is a schematic flow diagram of a stacker/reclaimer material provided by the present invention;
Fig. 15 is a schematic structural view of another stacker-reclaimer according to the present invention;
Fig. 16 is a schematic structural diagram of the interior of another stacker-reclaimer according to the present invention;
FIG. 17 is a schematic structural view of another stacker-reclaimer according to the present invention;
Fig. 18 is a schematic structural view of the interior of another stacker-reclaimer according to the present invention;
Fig. 19 is a flow diagram of a stacker/reclaimer feed stream of another stacker/reclaimer machine provided by the present invention.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
Example 1
Fig. 1 is a schematic view of a preferred embodiment of a stacker-reclaimer according to the present invention, which can simultaneously store, stack and unload materials, specifically, as shown in fig. 1, the working environment of the stacker-reclaimer is a circular stockyard, the bulk stockpile in the stacker-reclaimer is a circular stockpile 100 with a trapezoidal top, and the stockyard is surrounded by a dome 200 and an annular retaining wall; as in the present embodiment, it is,
As shown in fig. 1, the circular stockyard stacker-reclaimer comprises a revolving gantry part 10, a bucket-wheel reclaimer 20, a conveyor 50 and a centering rotary part 30, wherein the revolving gantry part 10 rotates around the centering rotary part 30 by taking the span of the revolving gantry part as a radius, the bucket-wheel reclaimer 20 and the conveyor 50 are connected with the revolving gantry part 10, wherein: the conveying part 50 comprises a material taking belt conveyor 51 and a stacking belt conveyor 52, the material taking belt conveyor 51 is matched with the bucket-wheel material taking part 20 to form a material taking material flow channel, and the stacking belt conveyor is matched with a trapezoidal distributing machine 53 to form a stacking material flow channel. When the stacker-reclaimer reclaims materials, the materials are taken by the bucket-wheel reclaiming part 20 and then are conveyed to the reclaiming belt conveyor 51, and then a blanking channel is matched to complete the combined reclaiming process of reclaiming and blanking; when stacking, the stacking is completed by matching the stacking belt conveyor 52 with a feeding channel (a material sliding hopper 600); different from the existing equipment, the gantry of the stacker-reclaimer can rotate around the centering rotating part 30, in other words, the stacker-reclaimer takes the span of the gantry as the radius of the actual working range, and the application of the stacker-reclaimer in a circular stock ground is realized for the first time.
Fig. 2 is a schematic structural diagram of the revolving gantry portion 20, which may be in various suitable shapes, and should not be taken as a limitation of the present invention, so as to satisfy the revolving stability and installation convenience of the belt conveyor and the bucket wheel machine, and in contrast to the revolving gantry portion preferably being a rectangular gantry in the present embodiment, as shown in fig. 2, the revolving gantry portion 10 rotates around the centering revolving portion 30, which together form a revolving truss of the circular stockyard stacker-reclaimer. The revolving gantry part 10 includes a cross beam 11, gantry legs 12 and a central shaft (spindle) 14, and further, in order to obtain a larger working space as much as possible, the gantry legs 12 and the central shaft (spindle) 14 are arranged in parallel and are respectively and independently connected with two ends of the cross beam 11 to form a gantry, and the gantry legs and the central shaft (spindle) 14 cooperate with the centering and revolving part 30 to jointly form a structure for supporting the revolving gantry part 10 against the dead weight, so as to realize a revolving end 110. The centering rotary portion 30 is sleeved on the middle shaft 14, and a fixed end 120 for limiting the radial displacement of the rotating gantry portion 10 is arranged. In a preferred embodiment, the cross member 11 is hinged to the frame legs 12 to form a tuning end 130 for adjusting the rotation of the revolving frame portion 30 against rail stress or rigid rotation; preferably, the mast legs 12 are hinged to the end bottom surfaces of the cross beams 11 in order to attenuate the effect of lateral stresses on the revolving mast portion 10 during rotation. The other end of the gantry supporting leg 12, which is far away from the cross beam 11, is connected with a walking mechanism 121 and vertically stands on the ground, and the walking mechanism 121 drives the gantry supporting leg 12 so as to drive the whole rotating gantry part to form a driving end 140 for driving the rotating gantry part 10 to rotate; thereby, the revolving door frame portion 10 is rotated about the center shaft 14, in other words, about the centering turnabout portion 30.
accordingly, the rotation track of the revolving door frame portion 10 is limited by the fixed end 120 as the center under the driving of the driving end 140, the cross beam 11 is made to revolve around the centering revolving portion 30 under the action of the revolving end 110, and meanwhile, the problem of track stress or rigid rotation of the revolving door frame portion 10 during the rotation process can be effectively eliminated and overcome through the adjusting end 130.
In a preferred embodiment, in order to reduce the friction resistance during the rotation process, the cross beam 11 is connected with the central shaft 14 through a rotary bearing seat 13, so that the cross beam 11 rotates around the central shaft 14.
Specifically, the pulley seats 112 and the hoisting bases 113 are arranged on the cross beam 11, the pulley seats 112 are arranged at two ends of the top surface of the cross beam 11 at intervals, and are symmetrically arranged along the geometric center of the length direction of the cross beam 11, the hoisting bases 113 are arranged at two ends of the bottom surface of the cross beam 11 at intervals, and are symmetrically arranged along the geometric center of the length direction of the cross beam 11, and the stress at two ends of the cross beam 11 is balanced through the pulley seats 112 and the hoisting bases 113 which are symmetrically distributed, so that the load borne by the whole cross beam 11 is more uniformly distributed.
The mast legs 12 may be of any suitable shape, and as shown in fig. 2, the mast legs 12 comprise legs 121, running gears 122 fixed to the legs 121, the legs 121 being hinged at their upper ends to the cross beam 11 and extending at their lower ends downwards perpendicular to the cross beam 11. Preferably, the running gear 122 is arranged at the tail end of the supporting leg 121 far away from the cross beam 11 and is integrally fixed with the supporting leg 121. Thus, the support legs 121 are driven to move together with the cross member 11 by the movement of the traveling mechanism 122 itself, and the entire revolving door frame portion 10 is rotated around the centering rotary portion 30.
The travel mechanism 122 may be any suitable mechanism that is sufficient to drive the mast legs 12 about the central axis 14. Preferably, as shown in fig. 3, the running gear 122 includes a running gear hinge base 122a integrally fixed to the support leg 121, a driving wheel 122b drivingly connected to the running gear hinge base 122a, and a guide rail 122c guiding the driving wheel 122b to move forward, and the top end of the running gear hinge base 122a is fixed to the bottom of the support leg 121 and extends downward; the driving wheel 122b is embedded in the travelling mechanism hinged support 122a, clamped between the travelling mechanism hinged support 122a and the guide rail 122c, and rotatably fixed with the travelling mechanism hinged support 122 a; the guide rail 122c is fixed to the ground and extends in the traveling direction of the revolving door frame portion 10. The guide rail 122c guides and limits the driving wheel 122b to move along the predetermined trajectory, thereby ensuring that the traveling mechanism 122 travels along the predetermined trajectory. Further, in order to realize automatic rotation of the gantry support leg 12 and realize accurate stroke control, the gantry support device further comprises a driving motor 122d which is fixed with the traveling mechanism hinged support 122a into a whole and is in driving connection with the driving wheel 122b, so that the driving wheel 122b can be accurately controlled through the driving motor 122d to drive the support leg 121 to move together. Furthermore, in order to better satisfy the swinging angular displacement and the self torsion displacement of the gantry support leg 12 in the span direction during the revolving operation of the revolving gantry portion 10, a revolving ball 123 connected with the support leg 121 and interposed between the beam 11 and the support leg 121 is further provided. Preferably, the swivel ball 123 is disposed at the top end of the support leg 121, integrally fixed with the support leg 121.
in conclusion, the above-mentioned revolving gantry part 10 can meet the installation requirements of the belt conveyor and the bucket wheel machine, the bucket wheel machine and/or the belt conveyor can be lifted vertically in the gantry hollow, and the requirement of providing the movable fixed beam of the belt conveyor, in addition, the revolving gantry part with the horizontal upper beam can well solve the problems of lower manufacturing precision of the circular track of the circular stockyard of the portal machine and settlement and deformation of the foundation in use due to the adoption of the revolving spherical hinge connecting structure of the supporting legs and the upper flat beam.
Fig. 4 is a schematic diagram of the internal structure of the stacker-reclaimer according to this embodiment, and the bucket-wheel reclaiming part 20 may take various suitable shapes, and preferably, as shown in fig. 4, the bucket-wheel reclaiming part includes a bucket wheel 22 and a lifting beam 21, and the bucket wheel 22 is fixed on the lifting beam 21 and moves together with the lifting beam 21. The lifting beam 21 is parallel to the cross beam 11 and is connected with the gantry support leg 12 and the middle shaft 14, and in the embodiment, the lifting beam 21 is sleeved with the middle shaft through the centering rotary part 30, so that the lifting beam 21 can rotate along with the rotating gantry part 10; in addition, the centering rotary part 30 can vertically lift along the central shaft 14, and accordingly, the lifting beam 21 can lift in the hollow of the rotary door frame part, so that the material taking of the bucket wheel machine at different heights can be realized; in addition, the bucket wheel 22 can move horizontally along the lifting beam 21 and lift and/or rotate together with the lifting beam 21; therefore, the material taking position of the bucket wheel machine 22 relative to the material pile 100 can be changed as required, so that layered material taking of the bucket wheel material taking part and material pile crossing selection of material piles can be realized, the limitation that the existing material taking machine cannot cross material piles to take materials is broken through, and multiple materials can be stored in one stock ground and can be respectively stored and taken; by adopting the bucket wheel machine 22 as the material taking actuating mechanism, the adaptability of the material taking mechanism to the physical characteristics of materials is enhanced, the failure rate is low, and the maintenance is simple; the advantages of high material taking efficiency, strong stability and the like of the bucket wheel machine can be fully utilized to obtain an improved bucket wheel stacker-reclaimer with great material taking amount. In addition, in order to ensure that the lifting beam 21 can still lift stably under high load, the lifting beam 21 is matched with a lifting mechanism 23 to drive the lifting beam 21 to lift, and the lifting mechanism 23 can adopt various suitable shapes, in the embodiment, as shown in fig. 4, the lifting mechanism 23 comprises a hoisting assembly 231, a fixed pulley block 232, a movable pulley block 233 and a steel rope 234, the hoisting assembly 231 and the fixed pulley block 232 are fixed at the gantry supporting leg 12 of the revolving gantry part 10, the movable pulley block 233 is fixed with the lifting beam 21 integrally, one end of the steel rope 234 is fixed with the lifting beam 21, and the other end arranged oppositely is fixed with the hoisting assembly 231 in a length rolling way through the fixed pulley block 232 and the movable pulley block 233. Through the connection that the length between the steel rope 234 and the hoisting assembly 231 can be rolled and extended, the lifting beam 21 is driven to change in the vertical direction and the height can be switched under the action of the fixed pulley block 232 and the movable pulley block 233, so that the switching of the height position of the bucket wheel 22 fixed on the lifting beam 21 is changed; therefore, the material taking height can be adjusted according to requirements, so that lifting layered material taking is realized. It is worth mentioning that when the portal frame is matched to rotate, the bucket wheel material taking part 20 is lifted, so that the work of crossing a material pile in a circular stock ground is realized for the first time, a plurality of limitations of the existing equipment are broken through, and a plurality of materials can be stored in one stock ground and can be stored and taken out respectively.
As shown in fig. 4, the conveying part 50 includes a material taking belt conveyor 51, a material stacking belt conveyor 52, and a trapezoidal material distributing machine 53, wherein the material taking belt conveyor 51 cooperates with the bucket wheel 22 to complete material taking, and the material stacking belt conveyor 52 and the trapezoidal material distributing machine 53 complete material stacking. Wherein, get material belt feeder 51 and establish on walking beam 11 and link up with bucket wheel machine 22 similarly, accomplish and get the material process. The material taking belt conveyor 51 is also arranged inside the revolving door frame part 10, and in order to realize material taking with a large span, the material taking belt conveyor 51 is preferably arranged to match with the span of the revolving door frame part 10 and to be substantially equal to the lifting beam 21. In addition, the windrow belt conveyor 52 and the trapezoidal distributing machine 53 are both arranged on a cantilever beam 54, the cantilever beam 54 is sleeved with the central shaft 14 through a bearing seat 541 and can rotate around the central shaft 14, as a preferred embodiment, the connection position of the cantilever beam 54 and the central shaft 14 is higher than the connection position of the cross beam 11 and the central shaft 14. At this time, the material piling and material taking can be performed simultaneously, the cantilever beam 54 and the rotary door frame part 10 can both rotate around the central shaft 14 (the centering and rotating part 30), in other words, the rotary door frame part 10 and the cantilever beam 54 can form any angle of 0-360 degrees, so the material piling and taking machine can complete the material piling and material taking process in any area in a circular material yard. The height of the stockpile is fixed, and the stockpile is finished by throwing the stockpile from the high position. In order to realize the automatic conveying of the materials and the rapid stacking and storage, one end of the stacking belt conveyor 52 is connected with the rotating gantry part 10, and the other end is connected with the trapezoidal distributing machine 53. The trapezoidal distributing machine 53 is driven by a trolley travelling mechanism 55; in a preferred embodiment, the trapezoidal distributing machine 53 moves horizontally along the cantilever beam via the trolley travelling mechanism 55. Preferably, as shown in fig. 4, the chute hopper 600 of the stacking belt conveyor 52 in communication with the out-of-yard belt conveyor trestle 500 obtains material transfer, and realizes the transfer of the materials inside and outside the yard. Preferably, in order to better realize the conveying and transferring of the materials, obtain higher stock ground utilization rate and improve the stacking capacity of the stock ground, the automatic conveying and transferring device further comprises a trapezoidal distributing machine 53 movably connected with the stacking belt conveyor 52 and a trolley traveling mechanism 55 driving the trapezoidal distributing machine 53 to reciprocate circularly, the trapezoidal distributing machine 53 is telescopically connected to the bottom surface of the stacking belt conveyor 52, and the trolley traveling mechanism 55 and the trapezoidal distributing machine 53 are matched into a whole and are connected with the stacking belt conveyor 52 in a driving way. Preferably, the carriage travel mechanism 55 is capable of bidirectional back and forth travel. Further, in order to facilitate the outlet end of the material sliding hopper 600 to keep synchronous rotation with the stacking belt conveyor 52, the material stacking device further comprises a trestle rotation support seat 57 which is clamped between the belt conveyor trestle 500 and the material sliding hopper 600 and keeps communication.
In addition, in order to realize the balance in the stacking process and ensure that the stacking belt conveyor 51 keeps balance without shaking and shaking in the rolling stacking process, the stacking belt conveyor further comprises a balance part 60 for balancing the cantilever beam 54, as shown in fig. 4, the balance part 60 is respectively arranged at two sides of the middle shaft 14, the deformation of the cantilever beam 54 in the stacking process is dispersed through a first pull rod 62 and a second pull rod 63, the two ends of the cantilever beam 54 are respectively connected through the first pull rod 62 and the second pull rod 63, and in addition, the balance part 60 further comprises a balancing weight 61 fixed on the cantilever beam 54 so as to shorten the length of the cantilever beam 54 at the non-stacking side and ensure the balance effect; specifically, the first pull rod 62 is locked and sleeved between one end of the cantilever beam 54, which is fixed with the counterweight block 61, and the middle shaft 14; a second tie rod 63 is captured between the end of the cantilever beam 54 remote from the counterweight 61 and the central axle 14. The tension at the two ends of the first pull rod 62 and the second pull rod 63 is adjusted to counteract or balance the deformation of the conveying part caused by the deflection. Further, the length of the second tie bar 63 is greater than that of the first tie bar 62, so as to save the occupied space of the whole cantilever beam 54, i.e., the stacking apparatus.
Fig. 6 to 12 are partially enlarged schematic views of the centering rotary part, the centering rotary part 30 may have various suitable shapes, and in this embodiment, as shown in fig. 4, the centering rotary part 30 includes a fixed support mechanism 31 fastened to the ground, and a central shaft (core shaft) 14 interposed between the fixed support mechanism 31 and the revolving door frame part 10 and connected to the fixed support mechanism 31, and a fixed axis of rotation of the revolving door frame part 10 is provided by the central shaft (core shaft) 14 connected to the fixed support mechanism 31, so as to drive the semi-portal truss to circularly rotate around the centering rotary part 30. Preferably, the central shaft (mandrel) 14 is integrally fixed with the fixed support mechanism 31.
As another preferable scheme of the present embodiment, as shown in fig. 4, the centering rotary portion 30 includes a fixed supporting mechanism 31, a central shaft (central spindle) 14 connected to the fixed supporting mechanism 31, and a centering rotary mechanism 33 sleeved on the central shaft (central spindle) 14, wherein the fixed supporting mechanism 31 is fixed on the ground; one end of the middle shaft (mandrel) 14 is fixed with the fixed supporting mechanism 31, and the other end which is arranged oppositely extends upwards along the vertical direction; the centering and rotating mechanism 33 is fixed integrally with the bucket-wheel take-out unit 20, and is rotatable with respect to the center shaft (spindle) 14 and movable in the axial direction of the center shaft (spindle) 14. Therefore, under the limitation and guidance of the centering and rotating mechanism 33, the bucket-wheel material taking part 20 fixed integrally with the centering and rotating mechanism can rotate relative to the central shaft (core shaft) 14 and can move along the axis direction of the central shaft (core shaft) 14, so that the position of the bucket-wheel material taking part 20 can be fixed in a horizontal direction and a vertical direction relative to the material pile 100 in a random switching manner, the material taking machine can take materials by crossing the material pile, and a plurality of materials can be stored in one material yard and can be stored and taken out respectively.
The fixed support mechanism 31 may be of various suitable shapes, and preferably, as shown in fig. 5 and 6, the fixed support mechanism 31 includes a base 311, a cylinder 312 fixed on the base 311, and at least one axial guide 314 disposed on the outer circumferential surface of the cylinder 312 and protruding radially from the cylinder 312, the base 311 is fixed by being locked by a bolt, the cylinder 312 is integrally connected with the base 311, and the axial guide 314 is uniformly distributed on the outer circumferential surface of the cylinder 312 and extends in the axial direction of the cylinder 312. The axial guide rail 314 is arranged to ensure that the bucket-wheel material taking part can move along the axial height of the cylinder 312 in a variable mode. Further, the axial guide rails 314 are planes perpendicular to the radial direction of the cylinder 312, and are integrally fixed with the cylinder 312, and a section with a non-perfect circle is formed on the outer circumferential surface of the cylinder 312, so that rolling bodies which move in cooperation with the axial guide rails 314 are limited on the evenly distributed axial guide rails 314, and the rotation motion around the axis of the cylinder 312 is avoided. Further, in order to facilitate centering of the swing motion of the swing portion 30 and the swing door frame portion 10, a top bearing housing 313 fixed to the top end of the cylinder 312 is further included.
The centering and rotating mechanism 33 may be of various suitable shapes, and preferably, as shown in fig. 7 to 11, in order to overcome the disadvantage that the existing equipment (bridge stacker-reclaimer) cannot work across a yard, it is necessary to add the functions of rotation and lifting, and at the same time, perform centering rotation, translation or lifting motion, and can act as a bearing for the centering portion bearing limit, the centering and rotating mechanism provided in the embodiment of the present invention is divided into a centering ring 331 and a rotating ring 332 which are concentrically sleeved, a first rolling member 333 is provided between the centering ring 331 and the rotating ring 332, the center line of the first rolling member 333 is coaxially arranged with the centers of the centering ring 331 and the rotating ring 332, and the rotating ring 332 is radially positioned and supported by the first rolling member 333, the first rolling member 333 is composed of a plurality of first rolling members 3331, each of the first rolling members 3331 includes a, a first shaft support 3331b and a first shaft support 3331c, the first roller 3331a is fixedly connected to the outer surface of the centering ring 331 through the first support 3331b, and the first roller 3331a is tangent to the inner surface portion of the rotating ring 332, so that the rotating ring 332 rotates around the centering ring 331 under the guidance of the first rolling element 333 while taking the inner diameter of the rotating ring 332 as an orbit, thereby completing the centering rotation motion. As a preferable solution of this embodiment, the first roller 3331a is connected to the first support 3331b via a shaft support 3331c, in other words, the rolling (moving) carrier is disposed in the first roller.
In order to ensure the stability and the reasonableness of the bearing when the whole centering and rotating mechanism moves, as a preferred embodiment of the present invention, the centering ring 331 is composed of a first centering ring 3311 (upper ring a), a second centering ring 3312 (lower ring B) and a centering ring connecting frame 3313, the first and second centering rings are symmetrically disposed and connected together by the centering ring connecting frame 3313, in other words, the first and second centering rings are respectively and fixedly connected to two ends of the centering ring connecting frame 3313; the outer surfaces of the first and second centering rings are each provided with a plurality of first rolling members 3331 to secure the rotational stability of the rotating ring. Accordingly, the rotating ring 332 is divided into first and second rotating rings, the first centering ring 3311 is concentrically fitted around the first rotating ring 3321, the second centering ring 3312 is concentrically fitted around the second rotating ring 3322, and the inner surface of each ring body is tangent to the first roller 3331a portion to form a rotating guide.
In addition, the inner surfaces of the first and second centering rings are provided with second rolling assemblies 334, so that the entire centering rotary mechanism can vertically move along the rotary direction under the guidance of the second rolling assemblies 334 while rotating, namely, the first rolling assemblies 444 vertically move along the central line direction; the second rolling assembly 334 is composed of a plurality of second rolling members 3341, and the second rolling members 3341 are composed of a second roller 3341a, a second shaft support 3341b, and a second support 3341 c; likewise, the rolling (moving) carrier is arranged within the second roller. As a preferred embodiment, a plurality of second rolling members 3341 are additionally provided at two ends of the first and second centering rings, which are not connected to the centering ring connecting frame 3314, so as to ensure the stability of the whole centering and rotating mechanism during movement; the second rolling element 3341 can be added according to the requirement of bearing or moving rigidity, so that the stability of the movement is guaranteed, and the uniqueness of the specific position of the second rolling element 3341 is not considered.
It should be noted that, in order to eliminate the radial offset in the rotation direction and the axial displacement caused by the linear velocity difference when the rotating ring 332 moves along with the centering ring 331, in other words, to implement the requirement that the present centering and rotating mechanism can move along with the rotating and axial movement of the functional executing components, the inventor adds a third rolling assembly 335 for axially limiting the rotating ring 332, the third rolling assembly 335 is composed of a plurality of third rolling members 3351, fig. 11 is a partial enlarged view of the third rolling members, as shown in fig. 11, the third rolling assembly 335 includes a plurality of third rolling members 3351, the third rolling members 3351 include a third roller pair 3351a, a shaft support pair 3351b and a third support 3351c, the third roller pair 3351a is independently connected to the third support 3351c through the shaft support pair 3351b, respectively, the third support 3351c is connected to the outer surface of the first and second centering rings, the third roller pair 3351a sandwiches the first and second rotary ring bodies of the rotary ring 332; the third roller is a conical wheel, and correspondingly, the smaller part of the conical wheel is close to the centering ring 331; therefore, the rotating ring 332 is clamped between the pair of tapered clamping wheels, so that two end faces of the first and second rotating rings are respectively the tracks of the third roller pair 3351a, and the distance between the rolling circles of each third roller 3351 and the thickness direction of the guide rail of the rotating ring body matched with the rolling circle form a rolling pair, so that the centering and rotating mechanism can perform rotating motion simultaneously when realizing axial motion. In a preferred embodiment, the taper of the cone pulley is selected by the rotation speed, preferably the angle formed by the intersection of the speed angle generatrix and the rotation center point of the mechanism, so as to ensure that the rolling circle of the third rolling assembly 335 is a constant linear speed cone; the centering slewing mechanism can realize constant speed angle of the big end and the small end when rotating so as to ensure the stability of slewing and the bearing rigidity and ensure that the friction force is the minimum value.
As a preferred embodiment, as shown in fig. 8, to ensure the stability of the movement, the center lines of the first, second and third rolling assemblies are coaxially arranged, and the rolling members are uniformly arranged along the circumference, preferably staggered. At this time, an extension line of a connecting line between the rolling circle center of the first rolling element 333 (radial rolling element) and the axial center point of the second rolling element 334 (axial rolling element) passes through the rotation center points of the rotating ring 332 and the centering ring 331.
In practical applications, the rotating ring is connected with a workpiece having a requirement for lifting or translation and rotation functions to form a centering and rotating device, preferably, in an embodiment of the present invention, as shown in fig. 10, the centering and rotating device is sleeved on the middle shaft (mandrel) 14, and the outer periphery of the cross section of the middle shaft (mandrel) 14 is non-circular and is partially tangent to the second roller 3341 a; at this time, the workpiece connected with the rotating ring 332 can rotate along with the rotating ring 332 and move along the central shaft (core shaft) 14 along with the centering ring 331, and when the central shaft (core shaft) 14 is arranged perpendicular to the ground, the workpiece can be lifted; when the central shaft (mandrel) 14 is arranged parallel to the ground, the workpiece can translate. On the basis of the above embodiment, in a specific embodiment, the centering rotary part 30 further includes a dustproof mechanism 34 which is sleeved on the central shaft (core shaft) 14 and covers the top end of the fixed supporting mechanism 31, and various adverse effects caused by dust entering the fixed supporting mechanism 31 in the material stacking and taking process are effectively avoided through the dustproof mechanism 34.
In summary, the centering rotary part provided in the embodiment of the present disclosure is equipped with the first and second rolling element members to simultaneously perform the rotary motion and the linear motion; the composite movement is realized by adopting the independent kinematic pair combination, so that each part has simple structure, easy manufacture and convenient maintenance; by arranging the rolling pair consisting of the first, second and third rolling parts on the ring body, the requirements of the mechanism on vertical and rotary directional movement functions are met, and the requirement that the assembled large-scale equipment can bear the three-dimensional space load generated during operation at each station on the site is met; by adopting the second rolling assembly, the required precision of the linear guide rail matched with the mandrel is reduced, and the linear guide rail is easy to manufacture and convenient to maintain; the centering rotary mechanism is arranged on a machine part with a linear motion function, the third rolling assembly is driven, and the degree of freedom of the moving part body is restrained through the third rolling assembly, so that the purpose of simultaneously finishing linear motion positioning and circle center centering at any position is realized.
It is worth mentioning that, in order to satisfy that there is very big blanking (can reach 20 surplus meters) in blanking point and material receiving point, realize controlling swift current material speed under the high-order perpendicular transport operating mode of bulk cargo, avoid conveying chain accepting end link to block up, and reduce fragile material damage, reduce the impact, the noise reduction, reduce the dust that gaseous impacted the production to the material, be convenient for material pile 100 through bucket wheel get material portion 20 take out the material, still include with bucket wheel get material portion 20 liftable switch the blanking passageway portion 40 of intercommunication, blanking passageway portion 40 presss from both sides and establishes inside revolving door frame portion 10, and fix an organic whole with it. With this, through the blanking passageway portion that switches the intercommunication with bucket wheel material taking part liftable, can realize receiving the direct transportation operating mode of material respectively in different high positions.
In the process of throwing the materials to the blanking channel part 40 through the material taking belt conveyor 51, because the materials are stacked on the material taking belt conveyor 51 and have height difference, an envelope line of a parabolic cluster of the materials in a projectile motion body is easily formed in the process of throwing the materials. As shown in fig. 12, the envelope with the highest height is the upper envelope 300 in the material throwing process, the envelope with the lowest height is the lower envelope 400 in the material throwing process, and the material is clamped between the upper envelope 300 and the lower envelope 400 in the material throwing process, so that the material is easy to scatter and dust is easy to fly in the material throwing process.
The inventor originally designs a multi-position curve blanking channel, as shown in fig. 12 and 13, in order to effectively prevent the dust in the material throwing process, the blanking channel part 40 includes a bucket body 41 with a cavity inside, a centering hinge shaft 42 hinged to the bucket body 41, at least one blanking port 43 opened on the bucket body 41 and capable of being closed, and at least one blanking assembly 44 embedded inside the bucket body 41 and having an arc blanking channel inside, the arc blanking channel of the blanking assembly 44 extends from the inner side of the blanking port 43 to the inner cavity of the bucket body 41, and the arrangement of the gradual change of the flow area inside the arc blanking channel of the blanking assembly 44 is adopted. Preferably, along the advancing direction of the materials, the blanking assemblies 44 are communicated end to end, and an arc-shaped channel with the curvature varying in an up-and-down manner is formed inside the bucket body 41. The arc-shaped channel with the curvature fluctuation change of the gradually-changed flow area, which is arranged through the blanking component 44, can effectively inhibit dust raised from the interior of the material when the material is thrown from the throwing roller. Further, in order to ensure the accuracy of the matching position of the blanking passage part 40 and the throwing roller, a centering hinge shaft 42 is provided at the top end of the bucket body 41 and is fixed to the bucket body in a penetrating manner.
In a preferred embodiment, the blanking assembly 44 includes a curved material receiving plate 441 and a guiding material sliding plate 442 fixed inside the hopper body 41, wherein the height of the top end of the curved material receiving plate 441 is not lower than the height of the top end of the opening of the blanking opening 43 in the vertical direction, the bottom end of the curved material receiving plate extends downward in the internal cavity of the hopper body 41, the height of the top end of the guiding material sliding plate 442 is lower than the height of the bottom end of the opening of the blanking opening 43, and the bottom end of the guiding material sliding plate extends along the direction approaching the bottom end of the curved material receiving plate 441. Further, the curved material receiving plate 441, the guiding material sliding plate 442 and the side wall of the bucket body 41 jointly enclose an arc-shaped channel with a gradually reduced flow area. Therefore, the dust generated by the thrown material can be effectively inhibited. Further, in order to make the space between the upper envelope 300 and the lower envelope 400 formed by the thrown material as small as possible, the space for dust emission is further compressed, the inner wall of the curved material facing plate 441 is tangent to the upper envelope 300 of the material, and the outer wall of the guiding material sliding plate 442 is tangent to the lower envelope 400 of the material.
In order to reduce the impact damage of the materials in the cavity inside the hopper body 41 caused by the high position, it is structurally preferable that the blanking assembly 44 further includes a first transferring chute plate 443 and a second transferring chute plate 444 for gathering the material flow, the first transferring chute plate 443 is fixed at the end of the arc-shaped channel commonly enclosed by the curved material facing plate 441, the guiding chute plate 442 and the side wall of the hopper body 41, and the height of the top end of the first transferring chute plate 443 is not lower than the height of the top end of the arc-shaped channel; the second transfer chute 444 has a top end height not lower than the bottom end height of the first transfer chute 443, the bottom end of which extends in the falling direction of the material. Further, the bottom end of the second transfer chute plate 444 is connected with the curved material receiving plate 441 of the next group in a smoothly curved transition manner. Therefore, the materials entering the blanking channel from the top can advance along the blanking channel similar to a sine curve under the action of the first transfer material sliding plate 443 and the second transfer material sliding plate 444, the falling speed of the materials can be effectively reduced, the advancing speed of the materials is slowed down, and the friction angle between the materials and the material sliding plates is further reduced through the material sliding channels in smooth transition from the head to the tail, so that the dispersion of the materials is avoided, and the noise in the falling process of the materials is reduced.
on the basis of the above structure, the inventor proposes another preferred embodiment, specifically, the anchor point of the curve material facing plate 441 and the anchor point of the first transfer material sliding plate 443 are arranged in opposite directions, and the flow area of the channel defined by the curve material facing plate 441 and the side wall of the bucket body 41 is larger than the flow area of the channel defined by the curve material facing plate 441 and the first transfer material sliding plate 443. Therefore, in the process that the material falls in the cavity inside the hopper body 41, the airflow flows through the channel defined by the curved material receiving plate 441 with a large flow area and the side wall of the hopper body 41, the channel is defined by the curved material receiving plate 441 and the first transfer material sliding plate 443, when the airflow limited inside the hopper body 41 passes through the reduced flow cross section, the flow velocity of the fluid is increased, the airflow is reduced from thick to thin, the flow velocity of the gas is increased, the gas forms a low-pressure area on the rear side (at the next group of material inlet 43) of the curved material receiving plate 441, the next group of material inlet 43 communicated with the low-pressure area actively forms the airflow under the action of the atmospheric pressure, and dust raising of the material at the material inlet is further avoided.
In summary, the inventor originally designs the blanking channel part, a blanking channel with a changed flow area is formed in the blanking channel part, the side wall of the blanking channel part is a curve enveloped at the upper part of a material throwing track of the discharging belt conveyor at a material receiving point, and the curve material receiving plate is designed to form a guide space with the curve guide material sliding plate at the lower part of the material throwing track for guiding the material flow direction, so that the purposes of reducing impact, gathering the material flow, reducing dust generated by the impact of gas on the material and reducing noise are achieved; a curve transfer material sliding plate is designed at the lower part of a curve material facing plate by combining the factors such as material sliding speed, a cut-in angle, friction characteristics and the like, so that the material is naturally guided and does not disperse in the downward sliding process, the dust generated by the impact of gas on the material is reduced, and the sliding speed of the material is controlled; a plurality of curve material flowing plates are adopted to transfer between a receiving point and a blanking point, downward sliding speed is controlled by curves according to bulk material friction characteristics, mutual relay is achieved, not only is high-position vertical transfer of the bulk materials realized, but also impact of the sliding speed can be controlled, and breakage of brittle materials is reduced.
Fig. 14 is a schematic diagram of a stacking and reclaiming process of the stacker-reclaimer of this embodiment, as shown in fig. 14, when material is required to be taken, the bucket wheel 22 of the bucket-wheel material-taking part 20 digs the stored material, conveys the taken material to the material-taking belt conveyor 51, and conveys the material of the material-taking belt conveyor 51 to the blanking assembly 44 and collects the material by the blanking assembly 44, which is also lifted and lowered by the lifting mechanism 23, so as to take the material; when the materials need to be stacked, the materials are conveyed to the material sliding hopper 600 through the belt conveyor trestle 500 and then conveyed to the stacking belt conveyor 52, and the materials are thrown and stacked through the trapezoidal distributing machine 53 under the driving of the trolley travelling mechanism 55, so that the stacking of the materials is completed.
Example 2
The present embodiment differs from embodiment 1 in the structure of the balance portion 60, and the manner and principle of achieving balance of the cantilever beam 54. As shown in fig. 15 and 16, in the present embodiment, the balancing unit 60 includes a first pull rod 62 and a second pull rod 63 respectively disposed on both sides of the bottom bracket 14, the first pull rod 62 is hinged to the bottom bracket 14 and the cross arm 11, respectively, and the second pull rod 63 is hinged to the bottom bracket 14 and the cantilever beam 54, respectively. First pull rod 62 and the articulated position of xarm 11, with the biggest position coincidence of the crossbeam deflection of revolving door frame portion 10, with this, the deflection of crossbeam self through revolving door frame portion 10 is out of shape, provide the pulling force of balanced conveying part 50, with this, need not extra balancing weight and can realize the dynamic balance of whole conveying part, simultaneously, also solved because revolving door frame portion span is very big, because the deformation that the deflection brought has promoted the bulk strength of whole revolving door frame portion easily. Preferably, for the convenience of maintenance and overhaul, the first pull rod 62 and the second pull rod 63 are symmetrically distributed relative to the axis of the middle shaft 14, so that the rebalance adjustment between the stacking device and the material taking device can be realized only by adjusting the first pull rod and the second pull rod at equal intervals.
The material taking and stacking process in this embodiment is the same as that in embodiment 1, and will not be described herein again.
Example 3
The difference between this embodiment and embodiments 1 and 2 lies in the structural form of the conveying part 50, and by optimizing the structure of the conveying part 50, the two operation processes of material taking and material stacking are combined, so that additional cantilever beams 54 and balance parts 60, workpiece connection and the like are not needed, and the material taking and material stacking device is suitable for material yards where material taking and material stacking are not performed simultaneously. More importantly, the stacking height is adjustable, and the inventor further improves the two preferred embodiments, as shown in fig. 17 and 18, the conveying part 50 is arranged in the revolving gantry part 10 and rotates together, and comprises a material taking belt conveyor 51, a trapezoidal distributing machine 53, a trolley travelling mechanism 54 and a stacking material taking belt conveyor 56, wherein the material taking belt conveyor 51, the trapezoidal distributing machine 53, the trolley travelling mechanism 54 and the stacking material taking belt conveyor 56 are all arranged on a lifting beam and lift together with the lifting beam 21 to realize the stacking height adjustment; unlike embodiments 1 and 2, the bucket wheel 22 needs to cooperate with the reclaiming belt conveyor 51 and the stacker-reclaimer belt conveyor 56 to complete the reclaiming process, in other words, the horizontal transmission span of the reclaiming belt conveyor 51 and the stacker-reclaimer belt conveyor 56 is as long as the span of the revolving gantry 10. In addition, further, in order to realize uniform stacking and taking of the material pile as much as possible and improve the utilization rate of the material yard, the trapezoidal distributing machine 53 is movably fixed at the bottom of the material taking belt conveyor 51, in other words, is located below the lifting beam and is driven by the trolley travelling mechanism 55 to translate along the lifting beam 21, and compared with the embodiments 1 and 2, the stacking span is increased.
As a preferred embodiment, for better stacking, the stacking and reclaiming belt conveyor 56 is divided into a first stacking and reclaiming part 561 and a second stacking and reclaiming part 562, the first stacking and reclaiming part 561 and the reclaiming belt conveyor 51 are arranged in a collinear manner, one end of the first stacking and reclaiming part is connected with the blanking channel part 40, the blanking ports 43 with different heights can be matched in a lifting manner, the other end of the first stacking and reclaiming part 561 is connected with one end of the second stacking and reclaiming part 562, the second stacking and reclaiming part 532 is obliquely arranged and connected with the trapezoidal distributing machine 53, at this time, the second stacking and reclaiming part 532 is obliquely arranged, and the stacking height difference between the stacking and reclaiming belt conveyor 56 and the trapezoidal distributing machine 53 can be reduced.
Fig. 19 shows a stacking and reclaiming process of the stacker-reclaimer in this embodiment, as shown in fig. 19, when material is required to be taken, the bucket wheel 22 of the bucket-wheel reclaiming part 20 digs and reclaims the stored material, and conveys the taken material to the reclaiming belt conveyor 51, and then conveys the material to the stacker-reclaimer belt conveyor 56 which runs in the forward direction (e.g., clockwise direction in fig. 17), and the material of the stacker-reclaimer belt conveyor 56 is conveyed to the blanking assembly 44 and collected by the blanking assembly 44 in a lifting manner under the driving of the lifting mechanism 23, so as to take the material; when the materials need to be stacked, the materials are conveyed to the material sliding hopper 600 through the belt conveyor trestle 500, then conveyed to the stacking and taking belt conveyor 56 which runs in the reverse direction (as shown in the figure 18, the materials circularly rotate in the anticlockwise direction), and are scattered and stacked through the trapezoidal distributing machine 53 under the driving of the trolley travelling mechanism 55, so that the stacking of the materials is completed.
although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention, and those skilled in the art can make possible variations and modifications of the present invention using the methods and techniques disclosed above without departing from the spirit and scope of the present invention, and therefore, all changes and modifications that can be made to the above embodiments by the principles of the present invention shall fall within the scope of the present invention.
Claims (65)
1. Circular stock ground stacker-reclaimer, its characterized in that: get material portion, conveying part and centering rotation mechanism including revolving door frame portion, bucket wheel, wherein revolving door frame portion uses revolving door frame portion span as the radius, uses centering rotation mechanism's centering rotation portion to rotate around centering rotation mechanism as the centre of a circle, and bucket wheel gets material portion and conveying part and connects revolving door frame portion, wherein:
The conveying part consists of a plurality of belt conveyors and is matched with the bucket-wheel material taking part to form a material taking material flow channel and/or a material stacking material flow channel;
the bucket wheel taking part comprises a bucket wheel machine and a lifting beam, the lifting beam is matched with a lifting mechanism to drive the lifting beam to lift, and the bucket wheel machine is fixed on the lifting beam and moves along with the lifting beam; the bucket wheel machine can move horizontally along the lifting beam and lift and/or rotate along with the lifting beam;
The lifting mechanism comprises a hoisting component, a fixed pulley block, a movable pulley block and a steel rope, the hoisting component and the fixed pulley block are fixed at the landing leg of the gantry of the revolving gantry part, the movable pulley block and the lifting beam are integrally fixed, one end of the steel rope is fixed with the lifting beam, and the other end of the steel rope, which is arranged oppositely, is fixed with the hoisting component in a winding and extending manner through the fixed pulley block and the movable pulley block.
2. The stacker-reclaimer machine of claim 1, wherein: the rotating gantry part comprises a cross beam, gantry support legs and a middle shaft, wherein the gantry support legs and the middle shaft are arranged in parallel and are respectively and independently connected with two ends of the cross beam to form a gantry.
3. The stacker-reclaimer machine of claim 1, wherein: the lifting beam is parallel to the cross beam and is simultaneously connected with the gantry supporting legs and the middle shaft.
4. The stacker-reclaimer machine of claim 1, wherein: the lifting beam is sleeved with the middle shaft through the centering rotary part.
5. The stacker-reclaimer machine of claim 2, wherein: the crossbeam is hinged with the portal support legs to realize the adjustment of the rotary portal part to overcome the stress of the track or the rigid rotation.
6. The stacker-reclaimer machine of claim 5, wherein: the other end of the portal support leg, which is far away from the cross beam, is connected with a walking mechanism and vertically erected on the ground.
7. The stacker-reclaimer machine of claim 2, wherein: the beam is connected with the middle shaft through a rotary bearing seat, and the beam rotates by taking the middle shaft as a circle center.
8. the stacker-reclaimer machine of claim 2, wherein: be equipped with pulley holder and hoist base on the crossbeam, pulley holder spaced apart is established respectively at the both ends of crossbeam top surface, along the geometric centre symmetric arrangement of the length direction of crossbeam, the alternate both ends of establishing at the crossbeam bottom surface of hoist base are along the geometric centre symmetric arrangement of crossbeam length direction.
9. The stacker-reclaimer machine of claim 2, wherein: the portal landing leg comprises a supporting leg and a walking mechanism fixed on the supporting leg, wherein the upper end of the supporting leg is hinged to the cross beam, and the lower end of the supporting leg extends downwards perpendicular to the cross beam.
10. The stacker-reclaimer machine of claim 9, wherein: the walking mechanism is arranged at the tail end of the supporting leg far away from the cross beam and is integrally fixed with the supporting leg.
11. the stacker-reclaimer machine of claim 9 or 10, wherein: the walking mechanism comprises a fixed walking mechanism hinged support integrated with the supporting leg, a driving wheel in driving connection with the walking mechanism hinged support and a guide rail for guiding the driving wheel to move forwards, and the top end of the walking mechanism hinged support is fixed at the bottom of the supporting leg and extends downwards; the driving wheel is embedded into the traveling mechanism hinged support, clamped between the traveling mechanism hinged support and the guide rail and rotatably fixed with the traveling mechanism hinged support; the guide rail is fixed on the ground and extends along the advancing direction of the rotary door frame part.
12. The stacker-reclaimer machine of claim 9, wherein: the walking mechanism also comprises a driving motor which is fixed with the walking mechanism hinged support and is in driving connection with the driving wheel.
13. The stacker-reclaimer machine of claim 9, wherein: the walking mechanism also comprises a rotary ball hinge which is connected with the supporting legs and clamped between the cross beam and the supporting legs.
14. the stacker-reclaimer machine of claim 13, wherein: the rotary ball hinge is arranged at the top end of the supporting leg and is fixed with the supporting leg integrally.
15. The stacker-reclaimer machine of claim 1, wherein: the conveying part comprises a stacking belt conveyor, a material taking belt conveyor and a trapezoidal distributing machine, the material taking belt conveyor is matched with a bucket wheel machine to finish material taking logistics, and the stacking belt conveyor and the trapezoidal distributing machine finish stacking logistics.
16. the stacker-reclaimer machine of claim 15, wherein: and a feeding channel for communicating the stockpiling belt conveyor with the trestle of the belt conveyor outside the material yard is used for conveying materials, so that the conveying of the materials inside and outside the material yard is realized.
17. The stacker-reclaimer machine of claim 16, wherein: one end of the stacking belt conveyor is connected with the rotating door frame part, and the other end of the stacking belt conveyor is connected with the trapezoidal distributing machine.
18. The stacker-reclaimer machine of claim 16, wherein: get the material belt feeder and establish on the lifing beam and link up with bucket wheel machine, and establish inside revolving door frame portion with.
19. the stacker-reclaimer of any one of claims 16 ~ 18, wherein when the stacker-reclaimer reclaims materials, the materials are conveyed ~ the reclaiming belt conveyor after being taken by the bucket wheel reclaiming part, and then the materials are combined with a blanking channel ~ complete the combined reclaiming process of reclaiming materials and blanking, and when the stacker-reclaimer reclaims materials, the materials are stacked by the stacker belt conveyor and the feeding channel.
20. The stacker-reclaimer machine of claim 19, wherein: the conveying part comprises a landing stage rotary supporting seat which is clamped between the belt conveyor landing stage and the feeding channel and is communicated with the belt conveyor landing stage.
21. the stacker-reclaimer machine of claim 15, wherein: the stacking belt conveyor and the trapezoidal distributing machine are arranged on the same cantilever beam.
22. The stacker-reclaimer machine of claim 21, wherein: the cantilever beam is sleeved with the middle shaft through a bearing seat and can rotate around the middle shaft.
23. The stacker-reclaimer machine of claim 22, wherein: the connecting position of the cantilever beam and the middle shaft is higher than the connecting position of the cross beam and the middle shaft.
24. The stacker-reclaimer machine of claim 21, wherein: the balance part is arranged on two sides of the middle shaft and comprises a first pull rod and a second pull rod.
25. The stacker-reclaimer machine of claim 24, wherein: the first pull rod and the second pull rod are respectively connected with two ends of the cantilever beam.
26. the stacker-reclaimer machine of claim 24, wherein: the balancing part also comprises a balancing weight fixed on the cantilever beam.
27. The stacker-reclaimer machine of claim 26, wherein: the first pull rod lock is sleeved between one end of the cantilever beam fixed balancing weight and the middle shaft; the second pull rod lock sleeve is arranged between one end of the cantilever beam far away from the balancing weight and the middle shaft.
28. The stacker-reclaimer machine of claim 24, wherein: the length of second pull rod is greater than the length of first pull rod.
29. The stacker-reclaimer machine of claim 12, wherein: the first pull rod is respectively hinged with the middle shaft and the cross beam, and the second pull rod is respectively hinged with the middle shaft and the cantilever beam.
30. The stacker-reclaimer machine of claim 29, wherein: the position where the first pull rod is hinged to the cross beam coincides with the position where the deformation amount of the cross beam of the revolving door frame part is maximum.
31. The stacker-reclaimer machine of claim 29 or 30, wherein: the first pull rod and the second pull rod are symmetrically distributed relative to the axis of the middle shaft.
32. The stacker-reclaimer machine of claim 1, wherein: the conveying part comprises a material stacking and taking belt conveyor, a material taking belt conveyor and a trapezoidal distributing machine, the material taking belt conveyor is matched with a bucket wheel machine to finish material taking logistics, and the material stacking and taking belt conveyor and the trapezoidal distributing machine finish material stacking logistics.
33. The stacker-reclaimer machine of claim 32, wherein: the material piling and taking belt conveyor and the trapezoidal material distributing machine are arranged on a lifting beam of the bucket-wheel material taking part.
34. The stacker-reclaimer machine of claim 32, wherein: the trapezoidal distributing machine is movably fixed at the bottom of the material taking belt conveyor.
35. the stacker-reclaimer machine of claim 32, wherein: the conveying part is arranged in the rotary door frame part and rotates together.
36. the stacker-reclaimer machine of claim 35, wherein: material belt feeder one end links up revolving door frame portion, and the other end links up trapezoidal cloth machine.
37. The stacker-reclaimer machine of claim 36, wherein: the horizontal transmission span of the material taking belt conveyor and the material stacking belt conveyor is equal to the span of the rotary gantry.
38. The stacker-reclaimer machine of claim 36 or 37, wherein: the stacking and taking belt conveyor is divided into a first stacking and taking part and a second stacking and taking part, the first stacking and taking part and the taking belt conveyor are arranged in a collinear mode, one end of the first stacking and taking part is connected with the blanking channel part, the other end, opposite to the first stacking and taking part, of the first stacking and taking part is connected with one end of the second stacking and taking part, and the second stacking and taking part is obliquely arranged and connected with the trapezoidal distributing machine.
39. The stacker-reclaimer machine of claim 15 or 32, wherein: the trapezoidal distributing machine is driven by a trolley travelling mechanism.
40. The stacker-reclaimer machine of claim 39, wherein: the trapezoidal distributing machine horizontally moves along the cantilever beam through the trolley travelling mechanism.
41. The stacker-reclaimer machine of claim 40, wherein: the trolley travelling mechanism is integrated with the trapezoidal distributing machine and is in driving connection with the windrow belt conveyor.
42. the stacker-reclaimer machine of any one of claims 40 ~ 41, wherein the trolley running mechanism runs back and forth in two directions.
43. The stacker-reclaimer machine of claim 1, wherein: the centering rotary part comprises a centering ring and a rotating ring which are sleeved with each other in a concentric mode, a first rolling assembly is arranged between the centering ring and the rotating ring, the centering ring, the first rolling assembly and the rotating ring are coaxially arranged at the center line, and the rotating ring rotates around the centering ring by taking the inner diameter of the rotating ring as a track under the guiding of the first rolling assembly.
44. The stacker-reclaimer machine of claim 43, wherein: the first rolling assembly is composed of at least one first rolling member, the first rolling member comprises a first roller, a first support and a shaft support, the first roller is fixedly connected with the outer surface of the centering ring through the first support, and the first roller is tangent to the inner surface part of the rotating ring.
45. The stacker-reclaimer machine of claim 44, wherein: the first roller is connected with the first support through a shaft support.
46. the stacker-reclaimer machine of claim 43, wherein: the centering ring is composed of a first centering ring, a second centering ring and a centering ring connecting frame respectively, wherein the first centering ring and the second centering ring are symmetrically arranged and are fixed through the centering ring connecting frame into a whole.
47. the stacker-reclaimer machine of claim 46, wherein: the outer surfaces of the first centering ring and the second centering ring are respectively provided with at least one first rolling piece.
48. The stacker-reclaimer machine of claim 43, wherein: the rotating ring is also divided into a first rotating ring and a second rotating ring, the first centering ring is sleeved with the first rotating ring in a concentric mode, the second centering ring is sleeved with the second rotating ring in a concentric mode, and the inner surface of each ring body is tangent to the first roller part to form a rotating guide rail.
49. The stacker-reclaimer machine of claim 47, wherein: the inner surfaces of the first and second centering rings are provided with a second rolling assembly.
50. The stacker-reclaimer machine of claim 49, wherein: the second rolling assembly is composed of at least one second rolling part, and the second rolling part is composed of a second roller, a second shaft support and a second support.
51. the stacker-reclaimer machine of claim 46, wherein: a plurality of second rolling members are additionally arranged at the two end parts of the first centering ring and the second centering ring which are not connected with the centering ring connecting frame.
52. The stacker-reclaimer machine of claim 49, wherein: the third rolling assembly is composed of at least one third rolling part, the third rolling part comprises a third roller pair, a shaft support pair and a third support, the third roller pair is independently connected with the third support through the shaft support pair respectively, the third support is connected with the outer surfaces of the ring bodies of the first centering ring and the second centering ring, and the third roller pair clamps two ends of the ring bodies of the first rotating ring and the second rotating ring.
53. The stacker-reclaimer machine of claim 52, wherein: the third roller is a conical wheel, the smaller part of the conical wheel is close to the centering ring, and the rotating ring is clamped between the conical wheel pairs.
54. The stacker-reclaimer machine of claim 53, wherein: the taper of the conical wheel is selected by the speed of revolution.
55. the stacker-reclaimer of any one of claims 52 ~ 54, wherein the centerlines of the first, second and third rolling assemblies are coaxially disposed, and wherein the rolling members are all uniformly arranged along the circumference.
56. The stacker-reclaimer machine of claim 55, wherein: the extension line of the connecting line of the center of the rolling circle of the first rolling component and the axial center point of the second rolling component passes through the rotating center points of the rotating ring and the centering ring.
57. the stacker-reclaimer machine of claim 1, wherein: still include a blanking passageway portion, blanking passageway portion includes that inside has the bucket body of cavity, still includes the blanking mouth that sets up at least one closeable opening on the bucket body, and the at least a set of inside of embedding inside at the bucket body has the blanking subassembly of arc passageway, the arc passageway of blanking subassembly extends to the bucket body inner chamber from the inboard of blanking mouth, the arrangement of its inside flow area gradual change.
58. The stacker-reclaimer machine of claim 57, wherein: along the advancing direction of material, the end to end intercommunication between each group of blanking subassembly forms by panel in the bucket body inside the arc passageway that the synthetic camber of enclosing changes.
59. the stacker-reclaimer machine of claim 57, wherein: the centering hinge shaft is arranged at the top end of the bucket body and penetrates through the top end of the bucket body to be fixed with the bucket body.
60. The stacker-reclaimer machine of claim 57, wherein: the blanking subassembly is met the flitch and is led to the swift current flitch including fixing the curve in the bucket body inside, along the vertical direction, and the top height that the flitch was met to the curve is not less than blanking mouth open-ended top height, and its bottom extends downwardly extending at the inside cavity of bucket body, leads the swift current flitch top height and is less than the open-ended bottom height of blanking mouth, and its bottom is met the direction extension of flitch bottom along drawing close the curve.
61. The stacker-reclaimer machine of claim 60, wherein: the curve material receiving plate, the guide material sliding plate and the side wall of the hopper body are enclosed to form an arc-shaped channel with gradually reduced flow area.
62. The stacker-reclaimer machine of claim 60, wherein: the inner wall of the curve material receiving plate is tangent to the upper envelope line of the material, and the outer wall of the guide material sliding plate is tangent to the lower envelope line of the material.
63. the stacker-reclaimer of any one of claims 58 to 62, wherein the blanking assembly further comprises a first transfer chute plate and a second transfer chute plate for gathering the material flow, the first transfer chute plate is fixed at the end of an arc-shaped channel which is defined by the curved material receiving plate, the guide chute plate and the side wall of the hopper body together, the height of the top end of the first transfer chute plate is not lower than that of the top end of the arc-shaped channel, the height of the top end of the second transfer chute plate is not lower than that of the bottom end of the first transfer chute plate, and the bottom end of the second transfer chute plate extends along the falling direction of the material.
64. The stacker-reclaimer machine of claim 63, wherein: the bottom end of the second transfer material sliding plate is connected with the curve material receiving plate of the next group in a smooth transition mode.
65. The stacker-reclaimer machine of claim 64, wherein: the anchor point that the flitch was met to the curve sets up with the anchor point opposite direction of first transshipment swift current flitch, and the curve meets the area of overflowing of the passageway that the flitch encloses with the bucket body lateral wall, is greater than the curve and meets the area of overflowing that flitch and first transshipment swift current flitch enclose the passageway.
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CN106315246B (en) * | 2016-08-31 | 2017-11-07 | 泰富重工制造有限公司 | Bucket-wheel stacker reclaimer |
CN106315247B (en) * | 2016-08-31 | 2017-11-07 | 泰富重工制造有限公司 | A kind of stacker-reclaimer |
CN106219259B (en) * | 2016-08-31 | 2019-12-13 | 泰富重工制造有限公司 | Door type bucket wheel stacker-reclaimer |
CN110155761B (en) * | 2018-01-31 | 2021-02-26 | 中集德立物流***(苏州)有限公司 | Luggage cabinet conveying device of airport and railway dual-purpose system |
CN110642152B (en) * | 2019-10-16 | 2020-08-28 | 长沙理工大学 | Large-span bulk cargo conveying system |
CN112844809B (en) * | 2020-12-31 | 2022-07-29 | 中铁工程服务有限公司 | Integrated shield muck environment-friendly treatment system |
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