CN112008642B - Method for replacing rubber belt of belt conveyor - Google Patents

Method for replacing rubber belt of belt conveyor Download PDF

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Publication number
CN112008642B
CN112008642B CN202010723735.2A CN202010723735A CN112008642B CN 112008642 B CN112008642 B CN 112008642B CN 202010723735 A CN202010723735 A CN 202010723735A CN 112008642 B CN112008642 B CN 112008642B
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China
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belt
layer
layer crawler
track
adhesive tape
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CN112008642A (en
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贾福音
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Xuzhou Sansen Weier Mine Technology Co ltd
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Xuzhou Sansen Weier Mine Technology Co ltd
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Priority to CN202010723735.2A priority Critical patent/CN112008642B/en
Priority to CN202110908463.8A priority patent/CN113799044B/en
Priority to CN202110908469.5A priority patent/CN113697567A/en
Publication of CN112008642A publication Critical patent/CN112008642A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • 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
    • B65G23/00—Driving gear for endless conveyors; Belt- or chain-tensioning arrangements
    • B65G23/44—Belt or chain tensioning arrangements

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)
  • Belt Conveyors (AREA)

Abstract

The invention discloses a method for replacing a rubber belt of a belt conveyor, wherein a used rubber belt replacing vehicle capable of continuously and synchronously winding and unwinding the rubber belt comprises an upper-layer crawler belt part, a middle-layer crawler belt part, a lower-layer crawler belt part and a centralized electric control part; the method for replacing the adhesive tape specifically comprises the steps of equipment transition, tape replacement preparation, new adhesive tape input positioning, old adhesive tape input positioning, adhesive tape replacement and the like. The invention can flexibly adjust the working position according to the specific working condition of a construction site, can realize the complete matching of the speed of the new adhesive tape unwinding and the speed of the old adhesive tape unwinding, realizes the automatic balance of the tension of the recovered adhesive tape and the resistance of the new adhesive tape unwinding in the adhesive tape replacing process, and has higher synchronism, stability and safety; the mode that adopts the unsmooth block cooperation centre gripping sticky tape of continuous wave track face neither damages the sticky tape, can guarantee firm centre gripping again, can adopt a plurality of sticky tape replacing vehicles that can receive and release the sticky tape in succession in step to establish ties and carry out the mode that jointly uses, and the sticky tape that is particularly useful for super long distance belt conveyor is changed.

Description

Method for replacing rubber belt of belt conveyor
Technical Field
The invention relates to a method for replacing an adhesive tape, in particular to a method for replacing the adhesive tape of a large belt conveyor used in places such as coal mines, wharfs and the like, and belongs to the technical field of maintenance equipment of belt conveyors.
Background
The belt conveyer, also called as rubber belt conveyer or belt conveyer, is a machine for continuously conveying material by means of friction drive, mainly includes machine frame, conveyer belt, supporting roller, drum, tension device and driving device, etc. it can form a material conveying process from initial feeding point to final discharging point on a certain conveying line, and can be extensively used in the fields of metallurgy, mine, electric power and chemical industry, etc..
The belt conveyor has irreplaceable effects in coal mine production due to the advantages of large conveying capacity, simple structure, low cost, strong universality and the like, and is main equipment for realizing the transportation of coal from an underground coal face to the ground. The adhesive tape with the steel wire rope core is used as a carrier for bearing and transporting coal, and in the long-time use process, the friction between the tape surface and materials and the friction between the adhesive tape and a roller can cause the tape surface of the adhesive tape to be scratched, even accidents such as tape breakage, tape sliding and the like occur, so that the adhesive tape is required to be replaced regularly in order to ensure the safe and stable operation of the adhesive tape. However, as coal mining gradually develops toward deep portions, deep mining causes the gradual popularization of ultra-long-distance belt conveyors with conveying distances of over kilometers, the ultra-long-distance belt conveyors are usually large in power and large in transportation capacity, and the rubber belts of the ultra-long-distance belt conveyors are usually of a structure that a plurality of rubber belt sections are connected into a whole through rubber belt joints, so that the ultra-long-distance belt conveyors are large in size and weight, complex in underground working condition environment of the coal mine and large in belt changing difficulty, and therefore the work of changing the rubber belts needs to invest a large amount of manpower and material resources and has large risks in the belt changing process.
The existing adhesive tape replacing method is generally that an adhesive tape replacing device is transported to a mine underground and then fixedly arranged below a machine head driving roller of a belt conveyor for replacing an adhesive tape, then an old tape is broken, a new tape conveyed by the adhesive tape replacing device for conveying the new tape is connected to one end of the old tape, the other end of the old tape is pulled back to be coiled and recovered by the adhesive tape replacing device for recovering the old tape, and the adhesive tape is replaced by a mode that the old tape pulls the new tape to be laid. The prior adhesive tape replacing device for clamping and conveying the adhesive tape has the following defects:
1. in order to realize stable traction, a positioning and mounting position of the adhesive tape replacing device needs to be additionally arranged under a mine, however, the working condition environment of the underground mine is complex, and particularly for over kilometer mines, the transportation and the positioning and mounting of the adhesive tape replacing device are relatively difficult;
2. for an ultra-long distance belt conveyor, if the power of the adhesive tape replacing device is not matched, the clamping force for clamping the adhesive tape is often insufficient or the traction force for pulling the adhesive tape is insufficient, so that the adhesive tape is slipped or pulled, and therefore the adhesive tape replacing device with enough high power needs to be matched, the volume and the weight of the adhesive tape replacing device are increased invisibly, and the transportation, the positioning and the installation are more difficult;
3. in order to facilitate transportation and positioning installation, the adhesive tape replacing device for conveying the new tape and the adhesive tape replacing device for recovering the old tape are usually respectively arranged and respectively positioned and installed, so that the situation that the speed of the new adhesive tape is unmatched with that of the old adhesive tape is easily caused to occur, and the laying quality of the new conveyor belt is poor or the tape replacing time is increased.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a method for replacing a rubber belt of a belt conveyor, which can realize convenient equipment transportation and flexible positioning installation on the premise of ensuring synchronous matching of the belt releasing speed of a new conveying belt and the belt receiving speed of an old conveying belt, can match the equipment power according to specific working conditions, and is particularly suitable for replacing the rubber belt of the ultra-long distance belt conveyor.
In order to achieve the purpose, the rubber belt replacing vehicle capable of continuously and synchronously winding and unwinding the rubber belt used by the rubber belt replacing method of the belt conveyor comprises an upper-layer crawler belt part, a middle-layer crawler belt part, a lower-layer crawler belt part and a centralized electric control part;
the upper-layer crawler belt part comprises an upper-layer crawler belt frame and upper-layer crawler belts, and the upper-layer crawler belts which are symmetrically arranged in a left-right mode are erected on the upper-layer crawler belt frame of the frame structure; the middle-layer crawler belt part comprises a middle-layer crawler belt rack and a middle-layer crawler belt, and the two sets of middle-layer crawler belts which are arranged in bilateral symmetry are arranged corresponding to the upper-layer crawler belt; the lower-layer crawler belt part comprises a lower-layer crawler belt frame and a lower-layer crawler belt, and the lower-layer crawler belts which are arranged in a bilateral symmetry mode are arranged corresponding to the middle-layer crawler belt in two sets; each upper-layer crawler belt, the middle-layer crawler belt and the lower-layer crawler belt respectively comprise endless crawler belts connected end to end, crawler belt driving chain wheels arranged in the endless structure of the crawler belts and a crawler belt supporting structure, and the crawler belt driving chain wheels arranged in a front-back rolling mode respectively comprise crawler belt driving parts;
the upper-layer crawler frame and the lower-layer crawler frame are respectively connected with the middle-layer crawler frame through a lifting guide connecting mechanism in an installing mode, a clamping control component I capable of controlling the upper-layer crawler frame to lift relative to the middle-layer crawler frame is arranged between the upper-layer crawler frame and the middle-layer crawler frame, a clamping control component II capable of controlling the lower-layer crawler frame to lift relative to the middle-layer crawler frame is arranged between the lower-layer crawler frame and the middle-layer crawler frame, a plurality of telescopic supporting legs which are vertically and downwardly arranged in a telescopic mode are further arranged on the lower-layer crawler frame, and the telescopic supporting legs comprise supporting leg;
the crawler belts of the upper-layer crawler belt, the middle-layer crawler belt and the lower-layer crawler belt are all of structures formed by sequentially hinging a plurality of wave-shaped chain plates, the outer surface of each wave-shaped chain plate comprises an arc-shaped convex surface and an arc-shaped concave surface, and when the wave-shaped chain plates are in a linear motion state, the arc-shaped convex surfaces and the arc-shaped concave surfaces of two adjacent wave-shaped chain plates jointly form a continuous wave-shaped structure;
the centralized electric control part comprises a central controller, an upper-layer crawler frame lifting control loop, an upper-layer crawler control loop, a middle-layer crawler control loop, a lower-layer crawler frame lifting control loop, a lower-layer crawler control loop and a supporting leg telescopic control loop, wherein the central controller is electrically connected with a clamping control part I, a clamping control part II, a supporting leg telescopic control part of a telescopic supporting leg, a crawler driving part of an upper-layer crawler, a crawler driving part of a middle-layer crawler and a crawler driving part of a lower-layer crawler respectively;
the adhesive tape replacing method specifically comprises the following steps:
a. equipment transition: the central controller controls the action of the clamping control part II through the lifting control circuit of the lower-layer crawler frame to enable the lower-layer crawler frame to drive the lower-layer crawler to move downwards to a set distance, then the central controller controls the telescopic supporting legs to be completely retracted through the supporting leg telescopic control circuit, the whole rubber belt replacing vehicle capable of continuously and synchronously winding and unwinding rubber belts moves downwards to enable the bottom plane of the lower-layer crawler to be attached to the ground, and the central controller controls the action of the crawler driving part of the lower-layer crawler to enable the whole vehicle to move forwards and backwards or turn to self-walk through the lower-layer crawler control circuit;
b. preparing tape changing: after controlling the adhesive tape replacing vehicle capable of continuously and synchronously winding and unwinding the adhesive tape to stop at the set position of the machine head driving roller of the belt conveyor corresponding to the adhesive tape to be replaced, the central controller controls the telescopic supporting legs to extend out completely and stably to be supported on the ground through the supporting leg telescopic control loop, then the central controller controls the action of the clamping control component I through the lifting control loop of the upper-layer crawler frame to enable the upper-layer crawler frame to drive the upper-layer crawler to move upwards to a set distance, then the central controller respectively controls the upper-layer track and the lower-layer track to perform micro-adjustment through the upper-layer track control loop and the lower-layer track control loop, so that the continuous wavy track surface at the bottom of the upper-layer track and the continuous wavy track surface at the top of the middle-layer track can be in concave-convex clamping fit, and the continuous wavy track surface at the top of the lower-layer track and the continuous wavy track surface at the bottom of the middle-layer track can be in concave-convex clamping fit;
c. inputting and positioning a new adhesive tape: the head end of a new adhesive tape passes through a gap between the upper-layer crawler and the middle-layer crawler from back to front, then the central controller controls the action of the clamping control component I through the lifting control loop of the upper-layer crawler frame to enable the upper-layer crawler frame to drive the upper-layer crawler to move downwards to a set distance, and the new adhesive tape is stably clamped by the continuous wavy crawler surfaces of the upper-layer crawler and the middle-layer crawler;
d. inputting and positioning the old adhesive tape: the method comprises the steps that after a rubber belt tensioning device of a belt conveyor of a rubber belt to be replaced is loosened, an old rubber belt is broken, the end part of an upper old rubber belt is stably connected with the head end of a new rubber belt through a belt buckle, the end part of a lower old rubber belt penetrates into a gap between a lower-layer crawler belt and a middle-layer crawler belt from front to back, then a central controller controls a clamping control part II to move through a lower-layer crawler belt rack lifting control loop, so that a rubber belt replacing vehicle capable of continuously and synchronously collecting and releasing the rubber belt integrally moves downwards to a set distance, and the old rubber belt is stably clamped by continuous wave-shaped crawler belts of the lower-layer crawler belt and the middle-layer crawler belt;
e. replacing the adhesive tape: the central controller controls the track driving part of the upper-layer track through the upper-layer track control circuit, the middle-layer track control circuit and the lower-layer track control circuit, the track driving part of the middle-layer track, the track driving part of the lower-layer track synchronously rotates, when the old rubber belt is conveyed by the stable clamping of the lower-layer track and the middle-layer track, the new rubber belt is conveyed by the stable clamping of the upper-layer track and the middle-layer track, after the old rubber belt is completely recovered, the old rubber belt connected with the head end of the new rubber belt is dismantled, the head end of the new rubber belt is stably connected with the tail end of the new rubber belt through a belt buckle, the rubber belt tensioning device of the belt conveyor is started to tension the new rubber belt, and the rubber belt replacement is completed.
As a further improvement scheme of the invention, the rubber belt replacing vehicle capable of continuously and synchronously winding and unwinding the rubber belt further comprises an anti-deviation part, wherein the anti-deviation part comprises anti-deviation components which are arranged in a bilateral symmetry mode and correspond to the side positions of the rubber belt, the anti-deviation components are positioned on the left side surface and the right side surface of the middle-layer crawler frame, or the anti-deviation components are arranged on the left side surface and the right side surface of the upper-layer crawler frame and the lower-layer crawler frame, the anti-deviation components are belt edge distance sensors, the belt edge distance sensors are uniformly distributed and arranged in a plurality along the front-back direction, the centralized electric control part further comprises an automatic deviation correction control loop, and the central controller is respectively and electrically connected with the plurality of belt edge distance sensors;
in the step e, when the old rubber belt is stably clamped and conveyed by the lower-layer crawler belt and the middle-layer crawler belt, and the new rubber belt is stably clamped and conveyed by the upper-layer crawler belt and the middle-layer crawler belt, the belt edge distance sensors feed back distances between the new rubber belt and the belt edge-to-belt edge distance sensors of the old rubber belt to the central controller in real time, if the old rubber belt or the new rubber belt deviates to the left side and exceeds a set distance range, the central controller starts an automatic correction control loop, sends out an instruction to control a clamping control component I or a clamping control component II on the right side to act, so that the upper-layer crawler belt or the lower-layer crawler belt on the right side is in a non-occluded loose clamping state, and when the belt edge-to-belt edge distance sensors feed back the distance between the belt edge-to-belt edge distance sensors of the rubber belt to the set distance range, the central controller controls the action of the clamping control component I or the clamping control component II on the right side to act, The upper layer crawler belt or the lower layer crawler belt on the right side is restored to the occluded clamping state; if the old adhesive tape or the new adhesive tape deviates to the right side and exceeds the set distance range, the central controller starts an automatic correction control loop, the central controller sends an instruction to control the clamping control component I or the clamping control component II on the left side to act, so that the upper-layer crawler belt or the lower-layer crawler belt on the left side is in a non-occluded loose clamping state, and when the distance from the belt edge of the adhesive tape fed back by the belt edge distance sensor to the belt edge distance sensor is in the set distance range, the central controller controls the clamping control component I or the clamping control component II on the left side to act, so that the upper-layer crawler belt or the lower-layer crawler belt on the left side is restored to the occluded clamping state.
As a further improvement scheme of the invention, the crawler driving chain wheels of the upper-layer crawler, the middle-layer crawler and the lower-layer crawler are respectively provided with a rotation angle sensor; the centralized electric control part also comprises an automatic correction control loop, and the central controller is respectively electrically connected with the rotation angle sensors of the upper-layer crawler belt, the middle-layer crawler belt and the lower-layer crawler belt;
and in the step b, before the central controller respectively controls the upper-layer crawler belt and the lower-layer crawler belt to perform micro-motion adjustment through the upper-layer crawler belt control loop and the lower-layer crawler belt control loop, the central controller firstly calculates the angle of the crawler belt driving chain wheels of the upper-layer crawler belt and the lower-layer crawler belt to rotate relative to the crawler belt driving chain wheels of the middle-layer crawler belt according to the feedback of the rotation angle sensor of the middle-layer crawler belt and the feedback of the rotation angle sensors of the upper-layer crawler belt and the lower-layer crawler belt, and then respectively controls the crawler belt driving parts of the upper-layer crawler belt and the lower-layer crawler belt to act to perform micro-motion adjustment.
As a further improvement scheme of the invention, aiming at the rubber belt replacement of the ultra-long distance belt conveyor, a plurality of rubber belt replacement vehicles which can continuously and synchronously receive and release rubber belts are used in a combined mode in series.
As a further improvement of the invention, in the step b, after the central controller controls the telescopic supporting legs to completely extend out and stably support on the ground through the supporting leg telescopic control loop, the telescopic supporting legs are fixedly connected with the machine head frame of the belt conveyor of the rubber belt to be replaced into a whole through the auxiliary beam.
As a further improvement scheme of the invention, space adjusting mechanisms capable of synchronously adjusting the space relative to the symmetrical bisection plane are arranged between two sets of upper-layer tracks which are symmetrical left and right in the upper-layer track part, between two sets of middle-layer tracks which are symmetrical left and right in the middle-layer track part and between two sets of lower-layer tracks which are symmetrical left and right in the lower-layer track part; the centralized electric control part also comprises a track spacing adjusting loop, and the central controller is electrically connected with the spacing adjusting mechanism respectively;
or the left upper-layer crawler belt of the upper-layer crawler belt part, the left middle-layer crawler belt of the middle-layer crawler belt part and the left lower-layer crawler belt of the lower-layer crawler belt part are connected into a whole through a left connecting frame, the right upper-layer crawler belt of the upper-layer crawler belt part, the right middle-layer crawler belt of the middle-layer crawler belt part and the right lower-layer crawler belt of the lower-layer crawler belt part are connected into a whole through a right connecting frame, a spacing adjusting mechanism capable of synchronously adjusting spacing relative to a symmetrical bisection plane is arranged between the left connecting frame and the right connecting frame, the centralized electric control part further comprises a crawler belt spacing adjusting loop, and the central controller is electrically connected with the spacing adjusting mechanism;
in the step b, after the central controller controls the telescopic supporting legs to completely extend out and stably support the telescopic supporting legs on the ground through the supporting leg telescopic control loop, the central controller controls the distance adjusting mechanism to cooperate with the actions of the distance adjusting mechanism through the track distance adjusting loop to adjust the distance size between two sets of upper-layer tracks which are bilaterally symmetrical on the upper-layer track part, the distance size between two sets of middle-layer tracks which are bilaterally symmetrical on the middle-layer track part and the distance size between two sets of lower-layer tracks which are bilaterally symmetrical on the lower-layer track part according to the bandwidth size of the belt conveyor with the rubber belt to be replaced.
As a further improvement scheme of the invention, a track tensioning mechanism which is telescopically arranged along the front-back direction is arranged in a track annular structure of at least the middle-layer track; the centralized electric control part also comprises a track tensioning adjusting loop, and the central controller is electrically connected with the track tensioning mechanism; the central controller controls the action of the track tensioning mechanism through the track tensioning adjusting loop to tension the track.
As a further improvement scheme of the invention, the centralized electric control part also comprises a remote controller, and the remote controller is wirelessly connected with the central controller; an operator controls the adhesive tape replacing vehicle capable of continuously and synchronously winding and unwinding the adhesive tape through the remote controller.
As the preferred scheme of the invention, the crawler driving parts of the upper layer crawler, the middle layer crawler and the lower layer crawler are all hydraulic motor structures, and the clamping control part I, the clamping control part II and the supporting leg telescopic control part are all hydraulic cylinder structures; the adhesive tape replacing vehicle capable of continuously and synchronously winding and unwinding the adhesive tape further comprises a vehicle-mounted hydraulic system, the vehicle-mounted hydraulic system comprises a hydraulic pump station and a control valve bank, and a central controller of the centralized electric control part is electrically connected with the hydraulic pump station and the control valve bank respectively; the central controller controls the action of the adhesive tape replacing vehicle capable of continuously and synchronously winding and unwinding the adhesive tape in a hydraulic control mode.
As a further improvement scheme of the invention, an adhesive tape brake which can prevent the adhesive tape from reversely running when the adhesive tape reversely runs is arranged at the input end position of the old adhesive tape of at least the middle-layer crawler frame; the centralized electric control part also comprises an adhesive tape brake loop, and the central controller is respectively electrically connected with the adhesive tape brake; in the step e, after the old adhesive tape is recovered, the central controller controls the adhesive tape brake to act through the adhesive tape brake loop to lock the head end of the new adhesive tape drawn by the old adhesive tape, and then the old adhesive tape connected with the head end of the new adhesive tape is detached.
Compared with the prior art, the adhesive tape replacing vehicle capable of continuously and synchronously winding and unwinding the adhesive tape can realize the front-back movement and the self-walking of steering of the whole vehicle by controlling the rotation of the bilaterally symmetrical lower-layer crawler belt after the telescopic supporting legs are controlled to be completely retracted and the lower-layer crawler belt frame is controlled to drive the lower-layer crawler belt to move downwards so that the bottom plane of the lower-layer crawler belt is attached to the ground, and is flexible, the working position can be flexibly adjusted according to the specific working condition of a construction site, and the transportation is convenient; aiming at the rubber belt replacement of the ultra-long distance belt conveyor, in order to ensure enough matching power, a plurality of small-power rubber belt replacement vehicles can be used in a combined mode in series, so that the rubber belt replacement vehicles can have relatively smaller volume and weight, and the maneuvering flexibility can be further increased; the adhesive tape replacing vehicle capable of continuously and synchronously winding and unwinding the adhesive tape adopts an upper-layer crawler belt, a middle-layer crawler belt and a lower-layer crawler belt synchronously clamp a new adhesive tape and an old adhesive tape, not only can the speed of unwinding the new adhesive tape and the speed of winding the old adhesive tape be completely matched, the automatic balance of the pulling force for recycling the adhesive tape and the resistance for releasing the new adhesive tape in the process of replacing the adhesive tape be realized, the synchronism, the stability and the safety are higher, but also the upper-layer crawler belt formed by sequentially hinging a plurality of wavy chain plates, the middle-layer crawler belt and the lower-layer crawler belt adopt a mode of matching concave-convex clamping of a continuous wavy crawler belt surface to clamp the adhesive tape, the adhesive tape is not damaged, the stable clamping can be ensured, and the adhesive tape replacing vehicle is particularly suitable for the adhesive tape replacing of an ultra-long-distance belt conveyor.
Drawings
FIG. 1 is a schematic three-dimensional structure diagram of a tape changing cart capable of continuously and synchronously winding and unwinding a tape;
FIG. 2 is a schematic three-dimensional structure of an upper-layer crawler belt portion of a tape changer capable of continuously and synchronously winding and unwinding a tape;
FIG. 3 is a schematic three-dimensional structure of a middle-layer track portion of a tape changer capable of continuously and synchronously winding and unwinding a tape;
FIG. 4 is a schematic three-dimensional view of a lower track portion of a tape changer capable of continuously and simultaneously retracting a tape;
FIG. 5 is a schematic structural view of a tape replacing cart capable of continuously and synchronously winding and unwinding a tape when replacing the tape;
FIG. 6 is a schematic view showing a configuration in which a wavy link plate of a tape changer capable of continuously and simultaneously winding and unwinding a tape grips the tape.
In the figure: 1. upper track part, 11, upper track frame, 12, upper track, 2, middle track part, 21, middle track frame, 22, middle track, 3, lower track part, 31, lower track frame, 32, lower track, 33, telescopic support leg.
Detailed Description
The present invention will be further explained with reference to the drawings (hereinafter, the left side direction of fig. 5 will be referred to as the front).
As shown in figure 1, the adhesive tape replacing vehicle capable of continuously and synchronously winding and unwinding the adhesive tape comprises an upper-layer crawler belt part 1, a middle-layer crawler belt part 2, a lower-layer crawler belt part 3 and a centralized electric control part.
As shown in fig. 2, the upper-layer crawler belt part 1 includes an upper-layer crawler belt frame 11 and an upper-layer crawler belt 12, the upper-layer crawler belts 12 which are arranged in two sets in bilateral symmetry are erected on the upper-layer crawler belt frame 11 of the frame structure, each set of upper-layer crawler belt 12 includes endless crawler belts connected end to end and crawler belt driving sprockets and crawler belt supporting structures which are arranged inside the crawler belt endless structure, the crawler belt driving sprockets are symmetrically arranged in two pieces in the front-back direction, the crawler belt supporting structures are arranged between the two crawler belt driving sprockets, the crawler belt supporting structures can be crawler belt supporting rollers which are uniformly distributed and arranged in multiple pieces in the front-back direction or crawler belt supporting roller shafts which are uniformly distributed and arranged in multiple pieces in the front-back direction, the crawler belt driving sprockets which are arranged in the front-back rolling direction include crawler belt driving parts, and the crawler belt driving parts can be hydraulic motor structures, the structure may be an electric motor structure, and a hydraulic motor structure is preferable.
As shown in fig. 3 and 4, the structures of the middle-layer crawler belt part 2 and the lower-layer crawler belt part 3 are similar to that of the upper-layer crawler belt part 1, the middle-layer crawler belt part 2 comprises a middle-layer crawler belt frame 21 and a middle-layer crawler belt 22, the middle-layer crawler belt 22 which is arranged in two sets in bilateral symmetry is arranged corresponding to the upper-layer crawler belt 12, the lower-layer crawler belt part 3 comprises a lower-layer crawler belt frame 31 and a lower-layer crawler belt 32, the lower-layer crawler belt 32 which is arranged in two sets in bilateral symmetry is arranged corresponding to the middle-layer crawler belt 22, each set of the middle-layer crawler belt 22 and the lower-layer crawler belt 32 comprises a crawler belt which is connected end to end in an annular shape, and a crawler belt driving sprocket and a crawler belt supporting structure which are arranged inside the crawler belt annular structure, and the crawler belt driving sprockets which are arranged in a front-and-back rolling manner all comprise crawler belt driving parts.
As shown in fig. 1, the upper-layer track frame 11 and the lower-layer track frame 31 are respectively connected to the middle-layer track frame 21 through a vertical lifting guide connection mechanism, a clamping control component i for controlling the upper-layer track frame 11 to lift relative to the middle-layer track frame 21 is arranged between the upper-layer track frame 11 and the middle-layer track frame 21, a clamping control component ii for controlling the lower-layer track frame 31 to lift relative to the middle-layer track frame 21 is arranged between the lower-layer track frame 31 and the middle-layer track frame 21, the lifting guide connection mechanism may be a guide sleeve and a guide post structure arranged in a matching manner, or may be a guide protrusion and a guide groove structure arranged in a matching manner, the clamping control component i and the clamping control component ii may be a hydraulic cylinder structure, or other telescopic control structures such as an electric cylinder structure, preferably a hydraulic cylinder structure, as shown in fig. 4, a plurality of telescopic legs 33 extending and retracting vertically and downwardly are further disposed on the lower-layer crawler frame 31, each telescopic leg 33 includes a leg extension and retraction control component, and the leg extension and retraction control component may be a hydraulic cylinder structure or other extension and retraction control structures such as an electric cylinder structure, and is preferably a hydraulic cylinder structure.
As shown in fig. 6, the upper track 12, the middle track 22 and the lower track 32 are all of a structure formed by sequentially hinging a plurality of wave-shaped link plates, the outer surface of each wave-shaped link plate includes an arc-shaped convex surface and an arc-shaped concave surface, and when the wave-shaped link plates are in a linear motion state, the arc-shaped convex surfaces and the arc-shaped concave surfaces of two adjacent wave-shaped link plates jointly form a continuous wave-shaped structure.
The centralized electric control part comprises a central controller, an upper-layer crawler frame lifting control loop, an upper-layer crawler control loop, a middle-layer crawler control loop, a lower-layer crawler frame lifting control loop, a lower-layer crawler control loop and a supporting leg telescopic control loop, wherein the central controller is electrically connected with the clamping control part I, the clamping control part II, a supporting leg telescopic control part of the telescopic supporting leg 33, a crawler driving part of the upper-layer crawler 12, a crawler driving part of the middle-layer crawler 22 and a crawler driving part of the lower-layer crawler 32 respectively.
When the adhesive tape replacing vehicle capable of continuously and synchronously winding and unwinding the adhesive tape is in a transportation and transition state, the central controller can control the clamping control part II to move through the lifting control circuit of the lower-layer crawler frame to enable the lower-layer crawler frame 31 to drive the lower-layer crawler 32 to move downwards to a set distance, then the central controller controls the telescopic supporting legs 33 to completely retract through the supporting leg telescopic control circuit, the adhesive tape replacing vehicle capable of continuously and synchronously winding and unwinding the adhesive tape integrally moves downwards to enable the bottom plane of the lower-layer crawler 32 to be attached to the ground, the central controller controls the crawler driving part of the lower-layer crawler 32 to move through the synchronous homodromous rotation of the lower-layer crawler 32 which is bilaterally symmetrical, the control over the back and forth movement of the whole vehicle is realized through the synchronous heterodromous rotation of the lower-layer crawler 32 which is bilaterally symmetrical, and the whole vehicle is flexibly maneuverable.
When the belt replacing vehicle capable of continuously and synchronously winding and unwinding the rubber belt is used for replacing the rubber belt of the belt conveyor to be replaced, as shown in fig. 5, after the belt replacing vehicle capable of continuously and synchronously winding and unwinding the rubber belt is controlled to stop at a set position corresponding to a head driving roller of the belt conveyor to be replaced, the central controller controls the telescopic supporting legs 33 to completely extend out and stably support on the ground through the supporting leg telescopic control circuit, the lower-layer crawler belt 32 is in a suspended state separated from the middle-layer crawler belt 22, then the central controller controls the clamping control component I to act through the upper-layer crawler belt frame lifting control circuit so that the upper-layer crawler belt frame 11 drives the upper-layer crawler belt 12 to move upwards to a set distance, the upper-layer crawler belt 12 is in a suspended state separated from the middle-layer crawler belt 22, and then the central controller respectively controls the upper-layer crawler belt 12 and the lower-layer crawler belt 32 to perform micro-adjustment through the upper-layer crawler belt control circuit and the lower-layer crawler belt control circuit, the continuous wave-shaped track surface at the bottom of the upper-layer track 12 and the continuous wave-shaped track surface at the top of the middle-layer track 22 can be in concave-convex clamping fit, and the continuous wave-shaped track surface at the top of the lower-layer track 32 and the continuous wave-shaped track surface at the bottom of the middle-layer track 22 can be in concave-convex clamping fit; the head end of a new adhesive tape passes through a gap between the upper-layer crawler 12 and the middle-layer crawler 22 from back to front, then the central controller controls the action of the clamping control component I through the lifting control loop of the upper-layer crawler frame to enable the upper-layer crawler frame 11 to drive the upper-layer crawler 12 to move downwards to a set distance, and the new adhesive tape is stably clamped by the continuous wave-shaped crawler surfaces of the upper-layer crawler 12 and the middle-layer crawler 22; the old rubber belt is broken after a rubber belt tensioning device of a belt conveyor of which the rubber belt is to be replaced is loosened, the end part of the uplink old rubber belt is stably connected with the head end of the new rubber belt through a belt buckle, the end part of the downlink old rubber belt penetrates into a gap between the lower-layer crawler belt 32 and the middle-layer crawler belt 22 from front to back, then a central controller controls a clamping control part II to act through a lower-layer crawler belt rack lifting control loop so that a rubber belt replacing vehicle capable of continuously and synchronously collecting and releasing the rubber belt integrally moves down to a set distance, and the old rubber belt is stably clamped by the continuous wavy belt surfaces of the lower-layer crawler belt 32 and the middle-layer crawler belt 22; the central controller controls the track driving part of the upper-layer track 12, the track driving part of the middle-layer track 22 and the track driving part of the lower-layer track 32 to synchronously rotate through the upper-layer track control loop, the middle-layer track control loop and the lower-layer track control loop, as shown in fig. 5, the track driving part of the upper-layer track 12 and the track driving part of the lower-layer track 32 synchronously rotate clockwise, and the track driving part of the middle-layer track 22 synchronously rotate anticlockwise, so that the new adhesive tape is stably clamped and conveyed by the upper-layer track 12 and the middle-layer track 22 while the old adhesive tape is stably clamped and conveyed by the lower-layer track 32 and the middle-layer track 22, the speed matching between the new adhesive tape releasing speed and the old adhesive tape collecting speed is realized, after the old adhesive tape is completely recovered, the head end of the new adhesive tape is stably connected with the tail end of the new adhesive tape through a belt buckle, and starting a rubber belt tensioning device of the belt conveyor to tension the new rubber belt.
Aiming at the replacement of the rubber belt of the ultra-long distance belt conveyor, in order to ensure enough matching power, a plurality of rubber belt replacing vehicles capable of continuously and synchronously winding and unwinding the rubber belt can be used jointly in a series connection mode.
In order to prevent the new rubber belt from deviating in the input process and the old rubber belt from deviating in the output process, and further influence the input of the new rubber belt and the output of the old rubber belt, as a further improvement scheme of the invention, the rubber belt replacing vehicle capable of continuously and synchronously reeling and unreeling the rubber belt further comprises a deviation preventing part, wherein the deviation preventing part comprises deviation preventing components which correspond to the side positions of the rubber belts and are arranged in a bilateral symmetry mode, the deviation preventing components are positioned on the left side surface and the right side surface of the middle-layer crawler frame 21, or the deviation preventing components are arranged on the left side surface and the right side surface of the upper-layer crawler frame 11 and the lower-layer crawler frame 31. The anti-deviation component can adopt a mechanical control structure, namely, the anti-deviation component is an anti-deviation vertical roller which is vertically arranged in the axial direction, a plurality of anti-deviation vertical rollers are uniformly distributed in the front-back direction and can freely rotate, the span dimension between the left and right anti-deviation vertical rollers is matched with the width dimension of the rubber belt, and if the rubber belt deviates in the conveying process, the anti-deviation vertical rollers can block the rubber belt. The central electric control part also comprises an automatic deviation rectifying control loop, and the central controller is respectively electrically connected with the plurality of belt edge distance sensors; in the process of conveying the adhesive tape, the plurality of tape edge distance sensors feed back distances between tape edges of a new adhesive tape and an old adhesive tape to the tape edge distance sensors in real time to the central controller, if the adhesive tape deviates to the left side and exceeds a set distance range, the central controller starts an automatic correction control loop, sends an instruction to control a clamping control component I or a clamping control component II on the right side to act, so that an upper-layer crawler 12 or a lower-layer crawler 32 on the right side is in a non-occluded loose clamping state, the adhesive tape gradually moves to the right side under the traction action of the upper-layer crawler 12 or the lower-layer crawler 32 in the left-side occluded clamping state, and when the tape edge distance sensors feed back that the distance between the tape edges of the adhesive tape and the tape edge distance sensors is in the set distance range, the central controller controls the clamping control component I or the clamping control component II on the right side to act, The upper crawler 12 or the lower crawler 32 on the right side is restored to the meshed clamping state; if the adhesive tape deviates to the right side and exceeds a set distance range, the central controller starts an automatic correction control loop, the central controller sends an instruction to control the clamping control component I or the clamping control component II on the left side to act, so that the upper-layer crawler 12 or the lower-layer crawler 32 on the left side is in a non-occluded loose clamping state, the adhesive tape gradually moves to the left side under the drawing action of the upper-layer crawler 12 or the lower-layer crawler 32 in the occluded clamping state on the right side, and when the distance between the tape edge and the tape edge distance sensor fed back by the tape edge distance sensor is in the set distance range, the central controller controls the clamping control component I or the clamping control component II on the left side to act, so that the upper-layer crawler 12 or the lower-layer crawler 32 on the left side is restored to the occluded clamping state, and automatic correction.
As a further improvement of the invention, when the old adhesive tape connected with the head end of the new adhesive tape is removed after the adhesive tape is replaced, in order to prevent the tape from slipping, an adhesive tape brake capable of preventing the adhesive tape from moving backwards when the adhesive tape moves backwards is arranged at the input end of the old adhesive tape of at least the middle-layer crawler frame 21; the centralized electric control part also comprises an adhesive tape brake loop, and the central controller is respectively electrically connected with the adhesive tape brake. The rubber belt brake can be a cam structure pressed on the rubber belt in the belt sliding process, or can also be a locking pressing plate structure pressed on the rubber belt in the belt sliding process, and other structures, and the rubber belt brake can be controlled hydraulically or directly electrically.
In order to realize the automatic correction of the wavy track surfaces of the upper-layer track 12 and the lower-layer track 32 and the middle-layer track 22 respectively, as a further improvement scheme of the invention, the track driving chain wheels of the upper-layer track 12, the middle-layer track 22 and the lower-layer track 32 are respectively provided with a rotation angle sensor; the centralized electric control part also comprises an automatic correction control loop, and the central controller is respectively electrically connected with the rotation angle sensors of the upper-layer crawler 12, the middle-layer crawler 22 and the lower-layer crawler 32. Before the central controller respectively controls the upper-layer crawler 12 and the lower-layer crawler 32 to perform micro-motion adjustment through the upper-layer crawler control loop and the lower-layer crawler control loop, the central controller firstly controls the crawler driving chain wheels of the upper-layer crawler 12 and the lower-layer crawler 32 to respectively rotate relative to the crawler driving chain wheels of the middle-layer crawler 22 according to the feedback of the rotation angle sensor of the middle-layer crawler 22 and the feedback of the rotation angle sensor of the upper-layer crawler 12 and the lower-layer crawler 32, and then respectively controls the crawler driving parts of the upper-layer crawler 12 and the lower-layer crawler 32 to perform micro-motion adjustment.
In order to ensure the stability of the conveying belt, as a further improvement of the present invention, when the belt-replacing operation is performed on the belt conveyor of the belt to be replaced, the telescopic legs 33 are fixedly connected with the headstock of the belt conveyor of the belt to be replaced through the auxiliary beams after being completely extended.
In order to guide the conveyed rubber belt, as a further improvement of the present invention, a rubber belt guide roller is horizontally erected at the new rubber belt output end and/or the new rubber belt input end of the upper-layer crawler frame 11, and a rubber belt guide roller is also horizontally erected at the old rubber belt input end and/or the old rubber belt output end of the lower-layer crawler frame 31.
In order to realize the universality of the adhesive tapes with different bandwidths, as a further improvement scheme of the invention, space adjusting mechanisms capable of synchronously adjusting the space relative to the symmetrical bisection plane are respectively arranged between two sets of upper-layer tracks 12 which are symmetrical left and right of an upper-layer track part 1, between two sets of middle-layer tracks 22 which are symmetrical left and right of a middle-layer track part 2 and between two sets of lower-layer tracks 32 which are symmetrical left and right of a lower-layer track part 3, the centralized electric control part also comprises a track space adjusting loop, and the central controller is respectively electrically connected with the space adjusting mechanisms; or the left upper-layer crawler belt 12 of the upper-layer crawler belt part 1, the left middle-layer crawler belt 22 of the middle-layer crawler belt part 2 and the left lower-layer crawler belt 32 of the lower-layer crawler belt part 3 are connected through a left connecting frame, the right upper-layer crawler belt 12 of the upper-layer crawler belt part 1, the right middle-layer crawler belt 22 of the middle-layer crawler belt part 2 and the right lower-layer crawler belt 32 of the lower-layer crawler belt part 3 are connected through a right connecting frame, a distance adjusting mechanism capable of synchronously adjusting the distance relative to the symmetrical bisection plane is arranged between the left connecting frame and the right connecting frame, the centralized electric control part further comprises a crawler belt distance adjusting loop, and the central controller is electrically connected with the distance adjusting mechanism. The distance adjusting mechanism can be a bidirectional telescopic hydraulic cylinder structure, or other bidirectional distance adjusting structures such as a matched screw nut structure, or other unidirectional distance adjusting structures such as two unidirectional telescopic hydraulic cylinder structures or an electric cylinder structure, which are symmetrically arranged left and right. After the central controller controls the telescopic supporting legs 33 to completely extend out and stably support the telescopic supporting legs on the ground through the supporting leg telescopic control loop, the central controller controls the distance adjusting mechanism to cooperate with the action of the distance adjusting mechanism through the track distance adjusting loop to adjust the distance size between the two sets of upper-layer tracks 12 which are bilaterally symmetrical in the upper-layer track part 1, the distance size between the two sets of middle-layer tracks 22 which are bilaterally symmetrical in the middle-layer track part 2 and the distance size between the two sets of lower-layer tracks 32 which are bilaterally symmetrical in the lower-layer track part 3 according to the bandwidth size of the belt conveyor with the rubber belt to be replaced.
Because the continuous wave-shaped track surfaces at the top and bottom of the middle-layer track 22 are respectively matched with the continuous wave-shaped track surface at the bottom of the upper-layer track 12 and the continuous wave-shaped track surface at the top of the lower-layer track 32, therefore, in order to prevent the continuous wavy track surface from being dislocated when the concave and convex parts are matched in a matched manner due to the looseness of the middle-layer track 22 and facilitate the installation of the wavy chain plates, as a further improvement scheme of the invention, at least a track tensioning mechanism which is telescopically arranged along the front and back direction is arranged in the track annular structure of the middle-layer track 22, the track tensioning mechanism can be a hydraulic cylinder structure or other linear telescopic structures such as an electric cylinder structure, preferably, the hydraulic cylinder structure, the centralized electric control part also comprises a track tensioning adjusting loop, the central controller is electrically connected with the track tensioning mechanism, and the central controller controls the track tensioning mechanism to act through the track tensioning adjusting loop so as to tension the track.
In order to facilitate the remote control operation, as a further improvement scheme of the invention, the centralized electric control part also comprises a remote controller, and the remote controller is wirelessly connected with the central controller; an operator controls the adhesive tape replacing vehicle capable of continuously and synchronously winding and unwinding the adhesive tape through the remote controller.
In order to make the overall structure simpler, as a further improvement of the present invention, the lifting guide connection mechanism between the upper-layer crawler frame 11 and the middle-layer crawler frame 21 and the lifting guide connection mechanism between the lower-layer crawler frame 31 and the middle-layer crawler frame 21 are guide posts and guide sleeve structures which are arranged in a matching manner, and the clamping control component i and the clamping control component ii are arranged in the guide sleeve structures. Namely, the lifting guide connecting mechanism between the upper-layer crawler frame 11 and the middle-layer crawler frame 21 can be a guide sleeve structure fixedly arranged on the middle-layer crawler frame 21 and a guide column structure fixedly arranged on the upper-layer crawler frame 11, and the clamping control component I is arranged in the guide sleeve structure; the lifting guide connecting mechanism between the lower-layer crawler frame 31 and the middle-layer crawler frame 21 can be a guide sleeve structure fixedly arranged on the middle-layer crawler frame 21 and a guide column structure fixedly arranged on the lower-layer crawler frame 31, the clamping control part II is arranged in the guide sleeve structure, and the telescopic supporting legs 33 are arranged on the guide columns. Or, the lifting guide connecting mechanism between the upper-layer crawler frame 11 and the middle-layer crawler frame 21 may be a guide post structure fixedly arranged on the middle-layer crawler frame 21 and a guide sleeve structure fixedly arranged on the upper-layer crawler frame 11, the clamping control component i is arranged in the guide sleeve structure, the lifting guide connecting mechanism between the lower-layer crawler frame 31 and the middle-layer crawler frame 21 may be a guide post structure fixedly arranged on the middle-layer crawler frame 21 and a guide sleeve structure fixedly arranged on the lower-layer crawler frame 31, the clamping control component ii is arranged in the guide sleeve structure, and the telescopic supporting legs 33 are also arranged in the guide sleeve.
As a preferable scheme of the invention, the crawler driving parts of the upper-layer crawler 12, the middle-layer crawler 22 and the lower-layer crawler 32 are all hydraulic motor structures, and the clamping control part I, the clamping control part II and the supporting leg telescopic control part are all hydraulic cylinder structures; the adhesive tape replacing vehicle capable of continuously and synchronously winding and unwinding the adhesive tape further comprises a vehicle-mounted hydraulic system, the vehicle-mounted hydraulic system comprises a hydraulic pump station and a control valve bank, and a central controller of the centralized electric control part is electrically connected with the hydraulic pump station and the control valve bank respectively; the central controller controls the action of the adhesive tape replacing vehicle capable of continuously and synchronously winding and unwinding the adhesive tape in a hydraulic control mode.
In order to increase the friction force, as a further improvement of the invention, the outer surface of the corrugated chain plate is provided with a coating layer made of rubber or PVC high-strength material.
The adhesive tape replacing vehicle capable of continuously and synchronously winding and unwinding the adhesive tape can realize the front and back movement and the self-walking of steering of the whole vehicle, is flexible, can flexibly adjust the working position according to the specific working condition of a construction site, and is convenient to transport; the device can realize relatively small volume and weight and adopt a serial connection mode for combined use; the device can realize the complete matching of the speed of the new adhesive tape unwinding and the speed of the old adhesive tape winding, realize the automatic balance of the tension of the recovered adhesive tape and the resistance of the new adhesive tape unwinding in the adhesive tape replacing process, and has higher synchronism, stability and safety; the mode of clamping the rubber belt by adopting the concave-convex clamping of the continuous wavy crawler belt surface does not damage the rubber belt, can ensure stable clamping, and is particularly suitable for replacing the rubber belt of the ultra-long distance belt conveyor.

Claims (10)

1. A method for replacing a rubber belt of a belt conveyor is characterized in that a used rubber belt replacing vehicle capable of continuously and synchronously winding and unwinding the rubber belt comprises an upper-layer crawler belt part (1), a middle-layer crawler belt part (2), a lower-layer crawler belt part (3) and a centralized electric control part;
the upper-layer crawler belt part (1) comprises an upper-layer crawler belt rack (11) and upper-layer crawler belts (12), and the upper-layer crawler belts (12) which are symmetrically arranged in a left-right mode are erected on the upper-layer crawler belt rack (11) of the frame structure; the middle-layer crawler belt part (2) comprises a middle-layer crawler belt rack (21) and middle-layer crawler belts (22), and two sets of middle-layer crawler belts (22) which are arranged in a bilateral symmetry manner are arranged corresponding to the upper-layer crawler belts (12); the lower-layer crawler belt part (3) comprises a lower-layer crawler belt rack (31) and lower-layer crawler belts (32), and the lower-layer crawler belts (32) which are arranged in a bilateral symmetry mode are arranged corresponding to the middle-layer crawler belts (22); each upper-layer crawler belt (12), the middle-layer crawler belt (22) and the lower-layer crawler belt (32) comprise endless crawler belts connected end to end, and crawler belt driving chain wheels and crawler belt supporting structures which are arranged in the endless crawler belt structures, and the crawler belt driving chain wheels arranged in a front-back rolling mode comprise crawler belt driving parts;
the upper-layer crawler frame (11) and the lower-layer crawler frame (31) are respectively connected with the middle-layer crawler frame (21) through a lifting guide connecting mechanism in an installing mode, a clamping control component I capable of controlling the upper-layer crawler frame (11) to lift relative to the middle-layer crawler frame (21) is arranged between the upper-layer crawler frame (11) and the middle-layer crawler frame (21), a clamping control component II capable of controlling the lower-layer crawler frame (31) to lift relative to the middle-layer crawler frame (21) is arranged between the lower-layer crawler frame (31) and the middle-layer crawler frame (21), a plurality of telescopic supporting legs (33) which are vertically and downwardly telescopically arranged are further arranged on the lower-layer crawler frame (31), and the telescopic supporting legs (33) comprise supporting leg telescopic control components;
the crawler belts of the upper-layer crawler belt (12), the middle-layer crawler belt (22) and the lower-layer crawler belt (32) are all of structures formed by sequentially hinging a plurality of wavy chain plates, the outer surface of each wavy chain plate comprises an arc convex surface and an arc concave surface, and when the wavy chain plates are in a linear motion state, the arc convex surfaces and the arc concave surfaces of two adjacent wavy chain plates jointly form a continuous wave-shaped structure;
the centralized electric control part comprises a central controller, an upper-layer crawler frame lifting control loop, an upper-layer crawler control loop, a middle-layer crawler control loop, a lower-layer crawler frame lifting control loop, a lower-layer crawler control loop and a supporting leg telescopic control loop, wherein the central controller is electrically connected with a clamping control part I, a clamping control part II, a supporting leg telescopic control part of a telescopic supporting leg (33), a crawler driving part of an upper-layer crawler (12), a crawler driving part of a middle-layer crawler (22) and a crawler driving part of a lower-layer crawler (32) respectively;
the adhesive tape replacing method specifically comprises the following steps:
a. equipment transition: the central controller controls the action of the clamping control part II through the lifting control circuit of the lower-layer crawler frame to enable the lower-layer crawler frame (31) to drive the lower-layer crawler (32) to move downwards to a set distance, then the central controller controls the telescopic supporting legs (33) to be completely retracted through the supporting leg telescopic control circuit, the whole rubber belt replacing vehicle capable of continuously and synchronously winding and unwinding rubber belts moves downwards to enable the bottom plane of the lower-layer crawler (32) to be attached to the ground, and the central controller controls the action of the crawler driving part of the lower-layer crawler (32) through the lower-layer crawler control circuit to enable the whole vehicle to move forwards and backwards or turn to self-travel;
b. preparing tape changing: after controlling the adhesive tape replacing vehicle capable of continuously and synchronously winding and unwinding the adhesive tape to stop at the set position of the machine head driving roller of the belt conveyor corresponding to the adhesive tape to be replaced, the central controller controls the telescopic supporting legs (33) to completely extend out and stably support on the ground through the supporting leg telescopic control loop, then the central controller controls the action of the clamping control component I through the lifting control loop of the upper-layer crawler frame to enable the upper-layer crawler frame (11) to drive the upper-layer crawler (12) to move up to a set distance, then the central controller respectively controls the upper-layer track (12) and the lower-layer track (32) to carry out micro-motion adjustment through an upper-layer track control loop and a lower-layer track control loop, so that the continuous wave-shaped track surface at the bottom of the upper-layer track (12) and the continuous wave-shaped track surface at the top of the middle-layer track (22) can be in concave-convex clamping fit, and the continuous wave-shaped track surface at the top of the lower-layer track (32) and the continuous wave-shaped track surface at the bottom of the middle-layer track (22) can be in concave-convex clamping fit;
c. inputting and positioning a new adhesive tape: the head end of a new adhesive tape passes through a gap between the upper-layer crawler belt (12) and the middle-layer crawler belt (22) from back to front, then the central controller controls the action of the clamping control component I through the lifting control loop of the upper-layer crawler belt rack to enable the upper-layer crawler belt rack (11) to drive the upper-layer crawler belt (12) to move downwards to a set distance, and the new adhesive tape is stably clamped by the continuous wave-shaped crawler belt surfaces of the upper-layer crawler belt (12) and the middle-layer crawler belt (22);
d. inputting and positioning the old adhesive tape: the old rubber belt is broken after a rubber belt tensioning device of a belt conveyor of the rubber belt to be replaced is loosened, the end part of the uplink old rubber belt is stably connected with the head end of the new rubber belt through a belt buckle, the end part of the downlink old rubber belt penetrates into a gap between a lower-layer crawler belt (32) and a middle-layer crawler belt (22) from front to back, then a central controller controls a clamping control part II to move through a lower-layer crawler belt rack lifting control loop so that the whole rubber belt replacing vehicle capable of continuously and synchronously winding and unwinding the rubber belt moves downwards to a set distance, and the old rubber belt is stably clamped by continuous wavy crawler belt surfaces of the lower-layer crawler belt (32) and the middle-layer crawler belt (22);
e. replacing the adhesive tape: the central controller controls the track driving part of the upper-layer track (12), the track driving part of the middle-layer track (22) and the track driving part of the lower-layer track (32) to synchronously rotate through the upper-layer track control loop, the track driving part of the middle-layer track (22) and the track driving part of the lower-layer track (32), when the old rubber belt is stably clamped and conveyed by the lower-layer track (32) and the middle-layer track (22), the new rubber belt is stably clamped and conveyed by the upper-layer track (12) and the middle-layer track (22), after the old rubber belt is completely recovered, the old rubber belt connected with the head end of the new rubber belt is disassembled, the head end of the new rubber belt is stably connected with the tail end of the new rubber belt through a belt buckle, the rubber belt tensioning device of the belt conveyor is started to tension the new rubber belt, and the rubber belt replacement is completed.
2. The method for replacing the rubber belt of the belt conveyor according to claim 1, wherein the rubber belt replacing carriage capable of continuously and synchronously winding and unwinding the rubber belt further comprises an anti-deviation part, the anti-deviation part comprises anti-deviation components which are symmetrically arranged left and right corresponding to the side positions of the rubber belt, the anti-deviation components are positioned on the left and right side surfaces of the middle-layer crawler frame (21) or arranged on the left and right side surfaces of the upper-layer crawler frame (11) and the lower-layer crawler frame (31), the anti-deviation components are belt edge distance sensors, the belt edge distance sensors are uniformly arranged in a plurality along the front and rear direction, the centralized electric control part further comprises an automatic deviation correction control loop, and the central controller is electrically connected with the plurality of belt edge distance sensors respectively;
in the step e, when the old adhesive tape is stably clamped and conveyed by the lower-layer crawler belt (32) and the middle-layer crawler belt (22), and the new adhesive tape is stably clamped and conveyed by the upper-layer crawler belt (12) and the middle-layer crawler belt (22), the belt edge distance sensors feed back the distance between the belt edge of the new adhesive tape and the old adhesive tape and the distance between the belt edge of the old adhesive tape and the belt edge distance sensors to the central controller in real time, if the old adhesive tape or the new adhesive tape deviates to the left side and exceeds a set distance range, the central controller starts an automatic correction control loop, sends out an instruction to control the action of the clamping control component I or the clamping control component II on the right side, so that the upper-layer crawler belt (12) or the lower-layer crawler belt (32) on the right side is in a non-occlusion loose clamping state, and when the distance between the belt edge of the adhesive tape fed back by the belt edge distance sensors and the belt edge distance sensors is within the set distance range, the central controller controls the action of the clamping control component I or the clamping control component II on the right side, The right upper crawler belt (12) or the right lower crawler belt (32) is restored to the meshed clamping state; if the old adhesive tape or the new adhesive tape deviates to the right side and exceeds the set distance range, the central controller starts an automatic correction control loop, the central controller sends an instruction to control the clamping control component I or the clamping control component II on the left side to act, so that the upper-layer crawler belt (12) or the lower-layer crawler belt (32) on the left side is in a non-occluded loose clamping state, and when the distance between the belt edge and the belt edge distance sensor of the adhesive tape fed back by the belt edge distance sensor is in the set distance range, the central controller controls the clamping control component I or the clamping control component II on the left side to act, so that the upper-layer crawler belt (12) or the lower-layer crawler belt (32) on the left side is restored to the occluded clamping state.
3. The belt changing method of claim 1, wherein the track driving sprockets of the upper track (12), the middle track (22) and the lower track (32) are respectively provided with a rotation angle sensor; the centralized electric control part also comprises an automatic correction control loop, and the central controller is respectively electrically connected with the rotation angle sensors of the upper-layer crawler belt (12), the middle-layer crawler belt (22) and the lower-layer crawler belt (32);
and in the step b, before the central controller respectively controls the upper-layer crawler belt (12) and the lower-layer crawler belt (32) to perform micro-motion adjustment through the upper-layer crawler belt control loop and the lower-layer crawler belt control loop, the central controller firstly controls the crawler belt driving chain wheels of the upper-layer crawler belt (12) and the lower-layer crawler belt (32) to rotate by the angle corresponding to the crawler belt driving chain wheels of the middle-layer crawler belt (22) according to the feedback of the rotation angle sensor of the middle-layer crawler belt (22) and the feedback of the rotation angle sensor of the upper-layer crawler belt (12) and the lower-layer crawler belt (32), and then respectively controls the crawler belt driving parts of the upper-layer crawler belt (12) and the lower-layer crawler belt (32) to perform micro-motion adjustment.
4. The method for replacing a belt of a belt conveyor according to claim 1, 2 or 3, wherein a plurality of belt replacing vehicles capable of continuously and synchronously winding and unwinding a belt are used in combination in series for replacing the belt of the ultra-long-distance belt conveyor.
5. The method for replacing the rubber belt of the belt conveyor according to claim 1, 2 or 3, wherein in the step b, after the central controller controls the telescopic legs (33) to be completely extended and stably supported on the ground through the leg extension control circuit, the telescopic legs (33) are fixedly connected with the headstock of the belt conveyor of the rubber belt to be replaced through the auxiliary beam.
6. The belt conveyor belt replacement method according to claim 1, 2 or 3, wherein a distance adjusting mechanism capable of synchronously adjusting the distance relative to the symmetrical bisecting plane is provided between the two sets of upper-layer tracks (12) which are bilaterally symmetrical in the upper-layer track portion (1), between the two sets of middle-layer tracks (22) which are bilaterally symmetrical in the middle-layer track portion (2), and between the two sets of lower-layer tracks (32) which are bilaterally symmetrical in the lower-layer track portion (3); the centralized electric control part also comprises a track spacing adjusting loop, and the central controller is electrically connected with the spacing adjusting mechanism respectively;
or the left upper-layer crawler belt (12) of the upper-layer crawler belt part (1), the left middle-layer crawler belt (22) of the middle-layer crawler belt part (2) and the left lower-layer crawler belt (32) of the lower-layer crawler belt part (3) are connected into a whole through a left connecting frame, the right upper-layer crawler belt (12) of the upper-layer crawler belt part (1), the right middle-layer crawler belt (22) of the middle-layer crawler belt part (2) and the right lower-layer crawler belt (32) of the lower-layer crawler belt part (3) are connected into a whole through a right connecting frame, a spacing adjusting mechanism capable of synchronously adjusting spacing relative to a symmetrical mid-section is arranged between the left connecting frame and the right connecting frame, the centralized electric control part further comprises a crawler belt spacing adjusting loop, and the central controller is electrically connected with the spacing adjusting mechanism;
in the step b, after the central controller controls the telescopic supporting legs (33) to completely extend out and stably support on the ground through the supporting leg telescopic control loop, the central controller controls the distance adjusting mechanism to cooperate with the action of the distance adjusting mechanism through the track distance adjusting loop to adjust the distance size between two sets of upper-layer tracks (12) which are bilaterally symmetrical on the upper-layer track part (1), the distance size between two sets of middle-layer tracks (22) which are bilaterally symmetrical on the middle-layer track part (2) and the distance size between two sets of lower-layer tracks (32) which are bilaterally symmetrical on the lower-layer track part (3) according to the bandwidth size of the belt conveyor with the rubber belt to be replaced.
7. A belt conveyor belt changing method according to claim 1, 2 or 3, wherein at least the track ring structure of the middle-layer track (22) is provided with a track tensioning mechanism inside, which is telescopically arranged in the front-rear direction; the centralized electric control part also comprises a track tensioning adjusting loop, and the central controller is electrically connected with the track tensioning mechanism;
the central controller controls the action of the track tensioning mechanism through the track tensioning adjusting loop to tension the track.
8. The method for replacing a belt of a belt conveyor according to claim 1, 2 or 3, wherein the centralized electric control part further comprises a remote controller, and the remote controller is wirelessly connected with the central controller; an operator controls the adhesive tape replacing vehicle capable of continuously and synchronously winding and unwinding the adhesive tape through the remote controller.
9. The belt conveyor belt changing method according to claim 1, 2 or 3, wherein the track driving parts of the upper track (12), the middle track (22) and the lower track (32) are all hydraulic motor structures, and the grip control part I, the grip control part II and the leg extension control part are all hydraulic cylinder structures; the adhesive tape replacing vehicle capable of continuously and synchronously winding and unwinding the adhesive tape further comprises a vehicle-mounted hydraulic system, the vehicle-mounted hydraulic system comprises a hydraulic pump station and a control valve bank, and a central controller of the centralized electric control part is electrically connected with the hydraulic pump station and the control valve bank respectively;
the central controller controls the action of the adhesive tape replacing vehicle capable of continuously and synchronously winding and unwinding the adhesive tape in a hydraulic control mode.
10. A method for replacing a belt of a belt conveyor according to claim 1, 2 or 3, wherein a belt stopper for preventing a reverse movement of the belt when the belt is reversely moved is provided at an old belt input end position of at least the middle crawler frame (21); the centralized electric control part also comprises an adhesive tape brake loop, and the central controller is respectively electrically connected with the adhesive tape brake;
in the step e, after the old adhesive tape is recovered, the central controller controls the adhesive tape brake to act through the adhesive tape brake loop to lock the head end of the new adhesive tape drawn by the old adhesive tape, and then the old adhesive tape connected with the head end of the new adhesive tape is detached.
CN202010723735.2A 2020-07-24 2020-07-24 Method for replacing rubber belt of belt conveyor Active CN112008642B (en)

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CN202010723735.2A CN112008642B (en) 2020-07-24 2020-07-24 Method for replacing rubber belt of belt conveyor
CN202110908463.8A CN113799044B (en) 2020-07-24 2020-07-24 Application method of adhesive tape replacing vehicle
CN202110908469.5A CN113697567A (en) 2020-07-24 2020-07-24 Tape changing method for synchronously winding and unwinding adhesive tape

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