CN115140506A - Trolley capable of bearing impact load and novel method for matching track - Google Patents
Trolley capable of bearing impact load and novel method for matching track Download PDFInfo
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- CN115140506A CN115140506A CN202110349514.8A CN202110349514A CN115140506A CN 115140506 A CN115140506 A CN 115140506A CN 202110349514 A CN202110349514 A CN 202110349514A CN 115140506 A CN115140506 A CN 115140506A
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- 238000000034 method Methods 0.000 title claims abstract description 25
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 58
- 239000010959 steel Substances 0.000 claims abstract description 58
- 230000003139 buffering effect Effects 0.000 claims abstract description 13
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 230000008439 repair process Effects 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 238000005097 cold rolling Methods 0.000 abstract description 5
- 238000005457 optimization Methods 0.000 abstract description 3
- 238000012958 reprocessing Methods 0.000 abstract 1
- 239000002699 waste material Substances 0.000 description 26
- 238000010276 construction Methods 0.000 description 5
- 238000000137 annealing Methods 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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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
- B65G35/00—Mechanical conveyors not otherwise provided for
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Handcart (AREA)
- Rollers For Roller Conveyors For Transfer (AREA)
Abstract
A trolley capable of bearing impact load and a new method for matching a rail thereof belong to the field of machinery. An integral buffer structure is arranged on the transport trolley, so that the buffer function in the trolley is realized; the bottom surface and the side surface of the trolley track are both provided with secondary buffer structures, so that the external buffer function of the trolley is realized; arranging a first supporting steel structure and a second supporting steel structure, and supporting the transport trolley at the ball unloading position to separate from the track contact; the wheels of the transport trolley are restrained by adopting a double-track structure through the arrangement of the upper track and the lower track; and a groove is formed above the track at the position corresponding to the ball unloading position, and the trolley is jacked up through the first support steel structure and the second support steel structure, so that the trolley is separated from the track. It solves the tipping and the track fracture problem that the travelling bogie appears by the impact of slitter edge ball through adopting two-stage buffering mode, can reduce the unit volume of reprocessing, has reduced the running cost. The method can be widely applied to the field of design optimization of the conveying system of the cold rolling unit scrap edge ball machine.
Description
Technical Field
The invention belongs to the field of machinery, and particularly relates to a related structure for a transport trolley of a continuous annealing unit and improvement of a matching track of the related structure.
Background
The newly added continuous annealing unit in the Bao steel strand cold rolling mill 2030 has the characteristics of automation, high speed and continuity and is mainly used for producing high-grade automobile plates. In order to realize the width of the strip steel required by a client, a disc shear is arranged behind the temper mill of the unit and used for shearing edges according to the required requirements.
As shown in fig. 1, after the edges of the strip steel are cut, the cut waste edge wires fall into a bin 1 through gravity, and when the waste edge wires are accumulated to a certain degree, a front push plate oil cylinder 2 pushes a front push plate 3 to push the waste edge wires out of the bin forward to enter a grabbing area. Further, the robot arm is extended to the grip position 4a at the home waiting position 4b to grip the scrap wire and then returns to the home waiting position. The slitter edge ball machine further curls the slitter edge wires dropped on the slitter edge ball machine into balls (technically, slitter edge balls for short) through the rotation of the scroll 7, and the slitter edge balls are curled and compacted through the self-weight extrusion of the compression roller 6. After the curling of the waste edge silk reaches the set diameter of the waste edge ball, the reel is drawn out, the scissors 5 cut off the continuous waste edge silk, the waste edge ball 8a which is coiled by taking the reel as the center falls in the transport trolley 9 at the waiting position due to the dead weight, and the position of the waste edge ball is 8b at the moment. The winding device (winding for short) 13 starts to rotate at this time, the steel wire rope 12 is pulled upwards, the transportation trolley is driven to move to the 'coil stripping' position along the transportation trolley walking track 11, and the waste edge ball (the position of the waste edge ball at this moment is shown by 8c in the figure) is thrown into the waste material trolley 14 (the position of the waste edge ball at this moment is shown by 8d in the figure). Then the transport trolley turns over along with the winch to drive the steel wire rope to move downwards to return to the original position, the tail end of the trolley contacts with the mechanical stop 10 on the ball rolling machine body and then reaches a waiting position, and then a new ball rolling process is started.
However, in the actual use process, it is found that when the waste edge balls roll off due to self-weight and fall on the transportation trolley in a waiting position (also called a ball unloading position or a ball unloading position, the same applies below), the waste edge balls with weight of about 3.2 tons roll off along the guide plate to the transportation trolley, so that huge impact is generated on the transportation trolley in the ball unloading position, and further the rail below the transportation trolley is broken, and meanwhile, the trolley is subjected to impact on the rigid rail at the moment, huge reaction force causes the trolley to jump up, and the wheel rim breaks away from the rail to tip over.
The observation shows that the problem of tipping of the trolley can occur, and the trolley bounces off the track due to the fact that the track generates huge reaction force on the transportation trolley after the transportation trolley is subjected to the impact force of the scrap edge ball. When the slitter edge ball falls off due to self weight and falls on the transport trolley in a waiting position, the slitter edge ball has the weight of about 3.2 tons and generates huge impact on the transport trolley in the process of falling off the transport trolley along the guide plate.
Specifically, as shown in fig. 2, when the mandrel is drawn out, the waste edge ball (the position of the waste edge ball at this time is shown by 8a in the figure) rolls down along the first guide plate 21 due to its own weight, passes through the transition of the second guide plate 22, and directly falls into the transportation trolley (the position of the waste edge ball at this time is shown by 8b in the figure). At this time, the trolley is subjected to an impact force along the rolling direction, the impact force has a parallel component and a vertical component along the track direction, and then the force is transmitted to the I-shaped steel 23 and the supporting beam 24 of the supporting track and the mechanical stop 25.
The welding and positioning treatment needs 7-8 hours after the rail is broken; the tipping treatment of the trolley also needs 5 to 6 hours, and great potential safety hazard is formed to surrounding people and equipment. Frequent faults of the transport trolley have great potential safety hazards, and meanwhile, the trolley is processed for several hours after being tipped over, so that the unit cannot cut edges to produce finished products, the unit needs to be finished and repaired, and the running cost is greatly improved.
Disclosure of Invention
The invention aims to solve the technical problem of providing a trolley capable of bearing impact load and a new rail matching method thereof. To the problem that the impact that the transport trolley receives the slitter edge ball that falls to produce at the waiting position causes the track fracture and the transport trolley derailment of dolly below the dolly to tumble, this technical scheme solves this problem through adopting the two-stage buffering, at first adopt integral buffer structure at the transport trolley, secondly reform transform current rail system, all adopt the second grade buffering to absorb the impact of falling to the slitter edge ball at the bottom surface and the side of dolly, important potential safety hazard and the cost bottleneck of restriction unit have been solved from the source, fundamentally has solved the tipping and the track fracture problem that the transport trolley appears often, a great potential safety hazard has effectively been eliminated, and greatly reduced the unit and reprocessed the volume, the running cost is reduced.
The technical scheme of the invention is as follows: the utility model provides a trolley capable of bearing impact load and a new method for matching the rail, which is characterized in that:
1) An integral buffer structure is arranged on the transport trolley, so that the buffer function in the trolley is realized;
2) The bottom surface and the side surface of the trolley track are both provided with secondary buffer structures, so that the external buffer function of the trolley is realized;
3) Arranging a first supporting steel structure and a second supporting steel structure, and supporting the transport trolley at the ball unloading position to separate from the track contact;
4) The wheels of the transport trolley are restrained by adopting a double-track structure through the arrangement of the upper track and the lower track;
5) A groove is formed above the track at the position corresponding to the ball unloading position, and the trolley is jacked up through the first support steel structure and the second support steel structure so as to be separated from the track;
the trolley capable of bearing impact load and the new method for matching the same with the track form a two-stage buffer mode by adopting the internal buffer structure of the trolley and the external buffer structure of the trolley, so that the problems of tipping and track fracture caused by the impact of the waste edge ball on the transport trolley are solved, the repair amount of a unit is reduced, and the running cost is reduced.
The integral buffer structure of the transport trolley comprises a trolley structure which is divided into two parts, wherein one part is a trolley body, the lower part is a trolley steel structure, the two parts are connected through a pin shaft at a rotating pin shaft, and a buffer cushion is used for partitioning the two parts so as to effectively avoid the deformation of the steel structure of the trolley body.
Furthermore, the bottom surface and the side surface of the trolley track are both of a secondary buffer structure, the secondary buffer structure comprises a concrete foundation which is arranged at the bottom and the side surface of the trolley track at the ball unloading position, and a first support steel structure and a second support steel structure are directly fixed at the bottom of the trolley track through foundation bolts; iron plates are embedded in concrete on the side faces of the trolley tracks, and then the supporting beams and the two tracks are fixed through welding.
Specifically, the first support steel structure and the second support steel structure support the transport trolley at the ball unloading position and are separated from the rail contact.
Furthermore, the double-track structure comprises an upper track and a lower track which are arranged in parallel, a lower wheel of the trolley is arranged in the lower track, an upper wheel of the trolley is arranged in the upper track, the vertical face sectional structures of the upper track and the lower track adopt a structural form similar to a side-standing channel steel, and wheels of the trolley are restrained through the arrangement of the upper track and the lower track.
Specifically, the method for slotting the upper and lower rails at the designated positions enables the trolley to have a space for separating from the rails and to smoothly move to a common non-slotted position at the material waiting position where the trolley can be slotted on the rails.
Further, the slot is opened above the rail and comprises: and a groove is formed above the track corresponding to the ball unloading position, and the transportation trolley is supported at the ball unloading position by means of the first support steel structure and the second support steel structure, so that the trolley is separated from the track.
Further, unload the ball position, support the steel construction through first support steel construction and second and jack-up the dolly, carry out the fluting project organization of assigned position to the track simultaneously for the dolly is located the track always.
According to the trolley capable of bearing impact load and the novel method for matching the trolley with the track, the impact after the scrap ball falls off is realized by the aid of the two-stage buffer function of the buffer structure inside the trolley and the buffer structure outside the trolley, meanwhile, the scrap ball can be completely prevented from being in impact contact with the trolley when falling off, the trolley is still in the track when falling off, and the trolley is restrained from the upper direction and the lower direction by the aid of the double-track structure, so that the trolley is prevented from being bounced off the track by the impact force.
Compared with the prior art, the invention has the advantages that:
1. according to the technical scheme, the double-stage buffering of the buffering structure in the trolley and the buffering structure outside the trolley is arranged, so that the impact force after the waste edge ball falls is responded, the contact impact force between the waste edge ball and the trolley when the waste edge ball falls is relieved, the trolley is still kept in the track when the waste edge ball falls, the track restrains the trolley from the upper direction and the lower direction, the trolley is prevented from being bounced off the track by the impact force, and the important potential safety hazard and the cost bottleneck which restrict a unit are solved from the source;
2. the technical scheme fundamentally solves the problems of frequent tipping and rail fracture of the transport trolley, effectively eliminates a major potential safety hazard, greatly reduces the unit repair amount and reduces the operation cost; the method is successfully applied to the field, provides a new idea for the design of other similar cold rolling units, and accumulates valuable experience.
Drawings
FIG. 1 is a schematic view of a conventional slitter edge ball machine arrangement;
FIG. 2 is a schematic view of the structure of the waiting position of the transport cart;
FIG. 3 is a schematic view of the overall mechanical structure of the present invention;
FIG. 4 is a schematic view of the overall mechanical structure assembly of the present invention;
FIG. 5 is a schematic view of the overall assembly of the track of the present invention;
FIG. 6a is a schematic structural view of the grooved rail of the present invention;
FIGS. 6 b-6 f are partial cross-sectional views of the structure of FIG. 6a at corresponding locations;
fig. 7 is a schematic view of the cart assembly structure.
In the figure, 1, a storage bin 2 is a front push plate oil cylinder 3, a front push plate 4a is a grabbing position 4b and is an original waiting position, 5 is scissors, 6 is a compression roller, 7 is a curling mandrel, 8 is a waste edge ball, 9 is a transport trolley, 10 is a positioning stop, 11 is a transport trolley walking track, 12 is a steel wire rope, 13 is a hoisting device, and 14 is a waste trolley;
21 is a first guide plate, 22 is a second guide plate, 23 is an I-shaped steel, 24 is a support beam, 25 is a mechanical stop, 41 is a first support steel structure, 42 is a second support steel structure, 43 is a fixed support beam, 44 is a lower rail, 45 is an upper rail, 71 is a rotating pin shaft, 72 is a cushion pad, 73 is a trolley body, and 74 is a trolley steel structure.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
The core thinking of this technical scheme solution problem is through adopting the two-stage buffering to solve the travelling bogie and receiving the impact that the slitter edge ball that rolls and fall produced at the waiting position, causes the problem that the track fracture and the travelling bogie derail of dolly below overturn: firstly, an integral buffer structure is adopted for a transport trolley (trolley for short), secondly, secondary buffer is adopted for the bottom surface and the side surface of a trolley track, and meanwhile, the trolley in a waiting position is supported by adopting a double track to be separated from the track contact. Through the three measures, the impact of the falling of the waste edge ball at the ball unloading position (namely the waiting position) on the transport trolley is absorbed and relieved.
In fig. 3, this technical scheme realizes the impact after falling to the slitter edge ball through setting up the inside buffer structure of dolly and the doublestage buffer function of the outside buffer structure of dolly, can avoid the slitter edge ball to contact with the impact of dolly when dropping completely simultaneously, and the dolly is still inside the track when the slitter edge ball drops, retrains the dolly from two upper and lower directions through setting up double track structure, avoids the dolly to receive the impact force bounce and breaks away from the track.
Based on the root cause of the problem generation and the principle of reliable structure, the technical scheme improves the prior track system, and solves the important potential safety hazard and the cost bottleneck which restrict the unit from the source.
In order to realize the technical solution concept in fig. 3, as shown in fig. 4, concrete foundations are respectively arranged at the bottom and the side of the trolley track at the ball unloading position, and a first support steel structure 41 and a second support steel structure 42 are directly fixed at the bottom of the trolley track through foundation bolts; iron plates are embedded in concrete on the side faces of the trolley tracks, and then the supporting beams 43 and the two tracks are fixed through welding.
In order to realize that the trolley can be always constrained in the track during ball unloading, double-track running is designed, a lower wheel of the trolley is arranged in a lower track 44, an upper wheel of the trolley is arranged in an upper track 45, the track adopts a structural form similar to a side vertical channel steel, and the wheels of the trolley are constrained through the arrangement of the upper track and the lower track.
In the ball discharging position, as shown in fig. 5, the trolley is jacked up by the first support steel structure 41 and the second support steel structure 42, and the special grooving (or opening) design is performed on the track, so that the trolley is always positioned in the track.
As can be seen from fig. 6, a groove (or an opening) is formed above the track (actually, the upper edge part of the side standing channel steel) corresponding to the material waiting position (i.e., the ball unloading position) for coil unloading, and then the trolley is jacked up through the bottom steel structure, so that the trolley is separated from the track. Thus, the impact load during the "coil unloading" (i.e., when the aforementioned scrap ball falls into the cart) is absorbed by the internal cushion (mainly referred to as the cushion pad portion) and the external cushion (mainly referred to as the first support steel structure, the second support steel structure, and the fixed support beam) of the cart. The purpose of internal buffering is to avoid the trolley structure from being deformed by impact; the external bumper of the trolley finally completely absorbs the impact energy.
In the car assembly shown in fig. 7, the car structure is divided into two parts, one part is a car body 73, the lower part is a car steel structure 74, and the two parts are connected by a pin at a rotating pin 71 and are divided by a cushion pad 72. This design can effectively reduce the impact load that the dolly body received toward dolly lower part steel construction transmission, avoids the body steel construction of dolly to warp, and then avoids causing the dolly wheel interval to change and cause the dolly to block in service because the body warp and die.
The technical scheme has the characteristics that:
(1) The trolley is of a split structure, and the upper part and the lower part are connected through a rotating pin shaft. The upper part is the dolly body, and the lower part is the dolly steel construction, and both cut apart with the blotter through the round pin hub connection, between rotating round pin axle department. The transmission of impact load to the steel structure at the lower part of the trolley, which is received by the trolley body, can be effectively reduced, and the deformation of the base structure of the trolley body is avoided.
(2) The impact is finally absorbed by the outside of the trolley through the relevant buffer structures arranged at the bottom and the side surfaces of the steel structure, and meanwhile, the trolley is separated from the track to be contacted due to the existence of the slotted structure during coil stripping.
(3) The track adopts the track structure of trilateral surrounding mode, avoids the dolly to receive the resilience after assaulting and breaks away from the track, and on waiting for the dolly of "coil stripping" to treat the track of material level, through the grooved method, makes the dolly possess and realize breaking away from orbital space and the dolly can treat the material level at the grooved track of track, smooth motion to ordinary not grooved position, avoids the in service impact.
The technical scheme is successfully applied to a certain newly-added continuous annealing unit of the Bao steel, achieves good effects, fundamentally solves the problems of frequent tipping and rail fracture of the transport trolley, effectively eliminates a great potential safety hazard, greatly reduces the unit repair amount and reduces the operation cost. The successful application of the technical scheme provides a new idea for the design optimization of the material conveying system of the waste edge ball mill of other cold rolling units, and accumulates valuable experience.
The method can be widely applied to the field of design optimization of the conveying system of the cold rolling unit scrap edge ball machine.
Claims (8)
1. A trolley capable of bearing impact load and a new method for matching the trolley with a track are characterized in that:
1) An integral buffer structure is arranged on the transport trolley, so that the buffer function in the trolley is realized;
2) The bottom surface and the side surface of the trolley track are both provided with secondary buffer structures, so that the external buffer function of the trolley is realized;
3) Arranging a first support steel structure and a second support steel structure, and supporting the transport trolley at a ball unloading position to separate from the contact of the track;
4) The wheels of the transport trolley are restrained by adopting a double-track structure and arranging an upper track and a lower track;
5) A groove is formed above the track at the position corresponding to the ball unloading position, and the trolley is jacked up through the first support steel structure and the second support steel structure so as to be separated from the track;
the trolley capable of bearing impact load and the novel method for matching the same with the track form a two-stage buffer mode by adopting the internal buffer structure of the trolley and the external buffer structure of the trolley, so that the problems of tipping and track fracture of the transport trolley caused by the impact of the slitter edge balls are solved, the unit repair amount is reduced, and the running cost is reduced.
2. The trolley capable of bearing impact load and the new method for matching rails thereof as claimed in claim 1, wherein the integrated buffering structure of the transportation trolley comprises a trolley structure divided into two parts, one part is a trolley body, the lower part is a trolley steel structure, the two parts are connected by a pin at a rotating pin, and the two parts are separated by a buffering pad to effectively avoid the deformation of the trolley body steel structure.
3. The trolley capable of bearing impact load and the novel track matching method thereof according to claim 1, wherein the bottom surface and the side surface of the trolley track are both provided with a secondary buffer structure, the secondary buffer structure comprises a concrete foundation which is respectively arranged at the bottom and the side surface of the trolley track at the ball unloading position, and a first supporting steel structure and a second supporting steel structure are directly fixed at the bottom of the trolley track through foundation bolts; iron plates are embedded in concrete on the side faces of the trolley tracks, and then the supporting beams and the two tracks are fixed through welding.
4. The cart capable of bearing impact load and its new method for matching rails as claimed in claim 3, wherein said first and second supporting steel structures support the cart at the ball-unloading position out of rail contact.
5. The trolley capable of bearing impact load and the novel track matching method thereof as claimed in claim 1, wherein the double track structure comprises an upper track and a lower track arranged in parallel, a lower wheel of the trolley is arranged in the lower track, an upper wheel of the trolley is arranged in the upper track, and the vertical cross-sectional structure of the upper track and the lower track adopts a structural form similar to a side-standing channel steel, and the wheels of the trolley are restrained by the arrangement of the upper track and the lower track.
6. The trolley and the new method for matching rails thereof with impact load as claimed in claim 5, wherein the trolley has a space for separating from the rail and the trolley can smoothly move to the ordinary un-grooved position at the material waiting position of the rail groove by the method of grooving the designated positions of the upper and lower rails.
7. The trolley and the new method for matching rails with the trolley according to claim 1, wherein the upper part of the rail is provided with a groove, and the groove comprises: and slotting the upper part of the track corresponding to the ball unloading position, and supporting the transport trolley at the ball unloading position by virtue of the first support steel structure and the second support steel structure to ensure that the trolley is separated from the track.
8. The cart capable of bearing impact load and the novel method for matching rails thereof as claimed in claim 1, wherein the novel cart capable of bearing impact load and the novel method for matching rails thereof are characterized in that the impact after the ball slitter falls is realized by the two-stage buffering function of the buffering structure inside the cart and the buffering structure outside the cart, the ball slitter is completely prevented from being in impact contact with the cart when the ball slitter falls, the cart is still inside the rails when the ball slitter falls, and the cart is restrained from the upper and lower directions by the double-rail structure, so that the cart is prevented from being bounced off the rails by the impact force.
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| CN202110349514.8A CN115140506B (en) | 2021-03-31 | 2021-03-31 | Method for matching track trolley to bear impact load |
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| CN202110349514.8A CN115140506B (en) | 2021-03-31 | 2021-03-31 | Method for matching track trolley to bear impact load |
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| CN115140506B CN115140506B (en) | 2024-01-09 |
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