CN213627674U - Quick telescopic device of belt conveyor - Google Patents

Abstract

The utility model provides a swift telescoping device of belt conveyor, includes a plurality of tight draw gear of clamp, a plurality of contrary device, a plurality of telescoping device, tight draw gear of clamp, telescoping device connect gradually, tight draw gear of clamp includes driven pulley, driving pulley, and driving pulley is driven by external mechanism and is rotated, and driven pulley sets up in driving pulley's top, and the distance between the two is used for passing the conveyer belt, and the distance between driven pulley, the driving pulley is adjustable, realizes the clamp tight and relax the conveyer belt, contrary device sets up in the one side of pressing from both sides tight draw gear, and contrary device's upper and lower tip is used for contacting with the top and the bottom in tunnel to push up tightly between tight draw gear of clamp and the tunnel, and draw gear adopts the tight friction traction mode of three-roller clamp, through pressing from both sides tight conveyer belt and forming certain angle of enclosing to the conveyer belt is the fulcrum, relies on driving pulley, the efficiency is higher, and the climbing ability is strong.

Description

Quick telescopic device of belt conveyor

Technical Field

The utility model relates to a mining equipment technical field especially relates to a swift telescoping device of belt conveyor.

Background

Along with the propulsion of colliery crossheading working face in the pit, the tail of crossheading belt conveyor is in order to antedisplacement, but be subject to the influence of the anterior normal fuselage of tail, the tail antedisplacement all needs to shut down and demolish normal fuselage at every turn, in order to reduce the number of times of shutting down on a shift, improve work efficiency, there is the flexible fuselage of relevant unit development, can realize above-mentioned purpose, but the mobile mode of flexible fuselage adopts the winch to pull mostly, and the winch base needs the anchor at every turn, it is more miscellaneous to work, and the adaptability of flexible fuselage in unsmooth tunnel is not enough.

SUMMERY OF THE UTILITY MODEL

There is a need for a quick telescopic device for a belt conveyor.

The utility model provides a swift telescoping device of belt conveyor, includes a plurality of tight draw gear that press from both sides, a plurality of contrary device, a plurality of telescoping device, press from both sides tight draw gear, the telescoping device connects gradually, press from both sides tight draw gear and include direction-changing drum, driving pulley is driven by external mechanism and rotates, and direction-changing drum sets up in driving pulley's top, and the distance between the two is used for passing the conveyer belt, and the distance between direction-changing drum, the driving pulley is adjustable, realizes pressing from both sides tightly and relaxing the conveyer belt, contrary device sets up in one side of pressing from both sides tight draw gear, and contrary device's upper and lower tip is used for contacting with the top and the bottom in tunnel to pressing from both sides tight draw gear and pushing up tightly between the tunnel, the telescoping device includes a plurality of sliders, first connecting rod, second connecting rod, stand, universal wheel, limiting plate, The second connecting rod cross connection all sets up the slider between two adjacent stands at the tip of first connecting rod and second connecting rod, the slider cover establish with the stand on to sliding connection between messenger's first connecting rod, second connecting rod and the stand, upper idler group, snub pulley group set up in the upper portion and the lower part of stand, the universal wheel sets up in the bottom of stand, the limiting plate sets up on the stand lateral wall.

Preferably, press from both sides tight draw gear and include the driven pulley, driving pulley, press from both sides tight hydro-cylinder, hydraulic motor, the roller support, the drive mounting bracket, the land wheel, hydraulic motor and clamp tight hydro-cylinder are installed on the drive mounting bracket, driving pulley is connected with hydraulic motor, rotate by hydraulic motor drive, the driven pulley sets up in driving pulley's top, distance between the two is used for passing the conveyer belt, the roller support is connected to the flexible end that presss from both sides tight hydro-cylinder, the driven pulley is connected to the roller support, reciprocate in order to drive the driven pulley, be close to or keep away from driving pulley, thereby change distance between the two, the realization is to the clamp of conveyer belt and.

Preferably, the direction-changing drums comprise a left direction-changing drum and a right direction-changing drum, and the left direction-changing drum and the right direction-changing drum are respectively positioned at the upper left and the upper right of the driving drum so as to form an enclosure angle larger than 120 degrees with the driving drum.

Preferably, the clamping traction device further comprises a left side lifting roller and a right side lifting roller which are arranged on two sides of the driving installation frame, and the left side lifting roller and the right side lifting roller are used for lifting the lower belt surface of the conveying belt when the traction device is in a non-working state, so that the conveying belt is prevented from being damaged by friction between the conveying belt and the transmission roller.

Preferably, contrary device is including supporting cylinder, last bracing piece, lower support bar, upper bracket, undersetting, the one end and the drive mounting bracket of going up bracing piece, lower support bar are articulated, and the two is "eight" word and opens, go up the bracing piece, the other end of lower support bar is used for contacting with the top and the bottom in tunnel respectively, and upper bracket, undersetting are articulated with the tip of last bracing piece, lower support bar respectively, make upper bracket, undersetting can with uneven tunnel top and ground laminating respectively, supporting cylinder connects between last bracing piece, lower support bar to drive the two and open or fold.

Preferably, the quick telescopic device of the belt conveyor further comprises a connecting rod, and the connecting rod is connected between the clamping traction device and the telescopic device.

The scheme has the advantages that:

1. under the working condition of no shutdown, the belt conveyor with the retractable crossheading working surface moves forwards within 50m from the moving tail, so that a normal machine body can be detached without shutdown, and the coal mining working efficiency is improved.

2. The traction device adopts a three-roller clamping friction traction mode, a certain wrap angle is formed by clamping the conveying belt, the conveying belt is used as a fulcrum, continuous traction is realized by means of rotary friction of the driving roller, the efficiency is high, the climbing capacity is high, and the conveying belt is used as a guide effect, so that the deviation phenomenon is not easy to occur.

3. The telescopic mechanism adopts a slide block connecting rod type, each slide block and the stand column are mutually independent, when the telescopic mechanism is telescopic, each unit moves independently one by one, the bending moment of the connecting rod is greatly reduced, each slide block and the stand column can slide mutually, and the adaptability of the whole device on an uneven roadway is also improved.

4. The normal machine body of the belt conveyor with the telescopic crossheading working surface can be intensively increased in the maintenance time, and the personnel allocation for waiting to increase the normal machine body is reduced.

5. The telescopic device is supported by universal wheels, and can be quickly adjusted at any time once the deviation occurs.

Drawings

Fig. 1-4 are schematic views of the movement state of the quick telescopic device of the belt conveyor of the present invention.

Fig. 5 is a schematic view showing a state of a clamping operation of the clamping and pulling device.

Fig. 6 is a schematic structural view of a non-clamping state of the clamping traction device.

Fig. 7 is a structural diagram of the longest state of the telescopic device.

Fig. 8 is a structural schematic diagram of the shortest state of the telescopic device.

Fig. 9 and 10 are partial schematic component views of fig. 5 and 6, respectively.

In the figure: the automatic conveyor comprises an external self-moving machine tail 1, a clamping traction device 2, a left bend drum 2-11, a right bend drum 2-12, a driving drum 2-2, a clamping oil cylinder 2-3, a hydraulic motor 2-4, a drum support 2-5, a driving mounting frame 2-6, a land wheel 2-7, a left lift drum 2-8, a right lift drum 2-9, a check device 3, a supporting oil cylinder 3-1, an upper supporting rod 3-2, a lower supporting rod 3-3, an upper support 3-4, a lower support 3-5, a telescopic device 4, a sliding block 4-1, a first connecting rod 4-2, a second connecting rod 4-3, a stand column 4-4, a universal wheel 4-5, a limiting plate 4-6, an upper carrier roller group 4-7, a lower carrier roller group 4-8, a carrier roller support 4-9, a ground roller support 4-2, a second, Connecting rod 5, conveyer belt 6, outside normal fuselage 7.

Detailed Description

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Referring to fig. 1-10, the embodiment of the present invention provides a rapid expansion device 4 for a belt conveyor, which comprises a plurality of clamping traction devices 2, a plurality of check devices 3, and a plurality of expansion devices 4, the clamping traction device 2 and the expansion device 4 are sequentially connected, the clamping traction device 2 comprises a bend pulley and a driving pulley 2-2, the driving pulley 2-2 is driven by a hydraulic motor of an external mechanism to rotate, the bend pulley is arranged above the driving pulley 2-2, the distance between the bend pulley and the driving pulley is used for passing through the conveyer belt 6, the distance between the bend pulley and the driving pulley 2-2 is adjustable, the clamping and the releasing of the conveyer belt 6 are realized, the non-return device 3 is arranged on one side of the clamping traction device 2, and the upper end part and the lower end part of the non-return device 3 are used for being in contact with the top and the bottom of a roadway so as to tightly push the clamping traction device 2 and the roadway.

Compared with the prior art, its beneficial effect lies in: the traction mechanism adopts a three-roller clamping friction traction mode, realizes continuous traction by clamping the conveying belt 6 and forming a certain wrap angle and relying on the rotary friction of the driving roller 2-2 by taking the conveying belt 6 as a fulcrum, has higher efficiency and strong climbing capability, and is not easy to deviate by taking the conveying belt 6 as a guide function; the telescopic device 4 adopts a slide block 4-1 connecting rod type, each slide block 4-1 and the upright post 4-4 are mutually independent, when the telescopic device 4 is telescopic, all units move independently one by one, the bending moment of the connecting rod is greatly reduced, and each slide block 4-1 and the upright post 4-4 can slide mutually, so that the adaptability of the whole device on uneven roadways is also improved.

This scheme is particularly useful for the drive that pulls in the unsmooth tunnel, and in the unsmooth tunnel, the shape of conveyer belt 6 can change along with the tunnel, presss from both sides tight draw gear 2 simultaneously and also can change along with tunnel surface unevenness and position, nevertheless even press from both sides tight draw gear 2's position change, or high or low, do not influence its and conveyer belt 6 between press from both sides tightly yet, still can use conveyer belt 6 to move as the fulcrum. Different from other driving modes, the driving device can stably move on the surface of a flat roadway.

The scheme is discontinuous continuous driving, is different from driving during stepping, and has good moving continuity, high stability and high moving speed.

Further, the clamping traction device 2 comprises a bend pulley, a driving pulley 2-2, a clamping oil cylinder 2-3, a hydraulic motor 2-4, a pulley support 2-5, a driving mounting frame 2-6 and a ground wheel 2-7, wherein the hydraulic motor 2-4 and the clamping oil cylinder 2-3 are mounted on the driving mounting frame 2-6, the driving pulley 2-2 is connected with the hydraulic motor 2-4 and driven to rotate by the hydraulic motor 2-4, the bend pulley is arranged above the driving pulley 2-2, the distance between the bend pulley and the driving pulley is used for penetrating through the conveyer belt 6, the telescopic end of the clamping oil cylinder 2-3 is connected with the pulley support 2-5, the pulley support 2-5 is connected with the bend pulley to drive the bend pulley to move up and down and to be close to or far away from the driving pulley 2-2, so as to change the distance between the bend, the clamping and loosening of the conveying belt 6 are realized, and the conveying belt is arranged at the bottom of the driving mounting frames 2-6.

Further, the direction-changing drums comprise a left direction-changing drum 2-11 and a right direction-changing drum 2-12, and the left direction-changing drum 2-11 and the right direction-changing drum 2-12 are respectively positioned at the upper left and the upper right of the driving drum 2-2 so as to form a wrap angle of not less than 120 degrees with the driving drum 2-2, so that the friction transmission force is increased as much as possible. When the conveying belt 6 is clamped, a wrap angle of not less than 120 degrees is formed between the conveying belt 6 and the driving roller 2-2, so that the friction transmission force is increased as much as possible. The conveying belt 6 of the arc-shaped section is in surface-to-surface contact with the driving roller 2-2, and the contact surface is large and tight; the conveyer belt 6 is pressed tightly on the surface of the driving roller 2-2 in a way that two turnabout rollers press downwards, so that positive pressure is increased; in addition, the conveying belt 6 which is compressed by the three rollers and generates W-shaped deformation has potential energy for restoring deformation, the potential energy is converted into potential energy for restoring deformation of the conveying belt 6, and the contact force between the conveying belt 6 and the three rollers is further enhanced.

Furthermore, the clamping traction device 2 also comprises a left side lifting roller 2-8 and a right side lifting roller 2-9 which are arranged at two sides of the driving installation frame 2-6, and when the traction device is in a non-working state, the lower belt surface of the conveying belt is lifted, so that the conveying belt is prevented from being damaged by friction between the conveying belt and a transmission roller.

Further, the non-return device 3 comprises a support oil cylinder 3-1, an upper support rod 3-2, a lower support rod 3-3, an upper support seat 3-4 and a lower support seat 3-5, wherein one end of the upper support rod 3-2 and one end of the lower support rod 3-3 are hinged with the drive mounting frame 2-6, the upper support seat 3-4 and the lower support seat 3-5 are splayed, the other ends of the upper support rod 3-2 and the lower support rod 3-3 are respectively used for contacting with the top and the bottom of a roadway, the upper support seat 3-4 and the lower support seat 3-5 are respectively hinged with the end parts of the upper support rod 3-2 and the lower support rod 3-3, so that the upper support seat 3-4 and the lower support seat 3-5 can be respectively attached to the top and the ground of the uneven roadway, the support oil cylinder 3-1 is connected between the, to drive the two to open or close.

Further, the telescopic device 4 comprises a plurality of sliding blocks 4-1, first connecting rods 4-2, second connecting rods 4-3, upright columns 4-4, universal wheels 4-5, limiting plates 4-6, upper carrier roller sets 4-7 and lower carrier roller sets 4-8, the first connecting rods 4-2 and the second connecting rods 4-3 are connected between the two adjacent upright columns 4-4 in a crossed manner, the end parts of the first connecting rods 4-2 and the second connecting rods 4-3 are respectively provided with the sliding blocks 4-1, the sliding blocks 4-1 are sleeved on the upright columns 4-4 so as to enable the first connecting rods 4-2, the second connecting rods 4-3 and the upright columns 4-4 to be connected in a sliding manner, the upper carrier roller sets 4-7 and the lower carrier roller sets 4-8 are arranged at the upper parts and the lower parts of the upright columns 4-4, the universal wheels 4-5 are arranged at the bottoms of the upright columns 4-4, the limiting plate 4-6 is arranged on the sliding block 4-1 and slides on the side wall of the upright post 4-4.

The telescopic device 4 is characterized as follows: under the driving action of the clamping traction device 2, the stretching device can automatically stretch along with the clamping traction device. The slide block 4-1 is hinged with the first connecting rod 4-2 and the second connecting rod 4-3 respectively, a limiting plate 4-6 is further installed on the slide block 4-1 on each unit, the slide block 4-1 can slide up and down on a slide way in the upright post 4-4, the limiting plate 4-6 also slides up and down along with the upper slide block 4-1, the bottom of the upright post 4-4 is connected with a universal wheel 4-5 through a bolt, a carrier roller support 4-9 is welded on the side face of the upright post 4-4, and the upper carrier roller group 4-7 and the lower carrier roller group 4-8 are connected onto the carrier roller support 4-9 through a bolt respectively. When the telescopic device 4 is unfolded to the longest state, the left and right sides of each group of the first connecting rods 4-2 and the second connecting rods 4-3 are supported by the limiting plates 4-6, the bending moment of the connecting rods is small, when the telescopic device 4 is shortened to the shortest state, the carrier roller supports 4-9 on each upright post 4-4 are contacted firstly, so that each connecting rod is not stressed in the shortest state, and each hinged unit moves independently in the extending process, namely, when the unit moves to the limiting position, the movement of the adjacent units can be influenced. The middle hinge point of each group of the first connecting rod 4-2 and the second connecting rod 4-3 is symmetrically and internally crossed, the stress point of the connecting rods passes through the geometric center, and the hinge shaft can not generate transverse bending moment.

Further, the quick telescopic device 4 of the belt conveyor further comprises a connecting rod 5, and the connecting rod 5 is connected between the clamping traction device 2 and the telescopic device 4.

The moving process of the scheme is as follows:

in order to explain the continuous action of the whole machine, the embodiment designs three clamping traction devices 2 at the left, middle and right, three check devices 3 and two expansion devices 4.

When the left telescopic device 4 is contracted, a piston rod of a clamping oil cylinder 2-3 of the left clamping traction device 2 extends out to push a roller support 2-5 to move, the roller support 2-5 drives a bend roller to move downwards to clamp a conveyer belt 6 under the action of a driving roller 2-2 and form a certain enclosed angle, a piston rod of a supporting oil cylinder 3-1 of the left check device 3 retracts to pull an upper supporting rod 3-2 and a lower supporting rod 3-3 to rotate, so that the upper support 3-4 and the lower support 3-5 are separated from the upper top surface and the lower bottom surface of a roadway, as shown in figure 5, the driving roller 2-2 is driven to rotate anticlockwise under the driving action of a hydraulic motor 2-4, the left clamping traction device 2 takes the conveyer belt 6 as a fulcrum to move forwards along the conveyer belt 6 under the action of friction force to realize traction, the position is shown in fig. 2;

at the moment, a piston rod of a supporting oil cylinder 3-1 of the left-side check device 3 is extended again, the upper supporting rod 3-2 and the lower supporting rod 3-3 are pushed to rotate, so that an upper support 3-4 and a lower support 3-5 are tightly pressed on the upper top surface and the lower bottom surface of the roadway, the left-side check device 3 is fixed, then the piston rod of the clamping oil cylinder 2-3 of the left-side clamping traction device 2 is retracted, the roller support 2-5 is pulled to move, the roller support 2-5 drives a bend roller to move upwards, a certain distance is formed between the bend roller and the driving roller 2-2, and the bend roller is separated from the conveying belt 6;

when the right expansion device 4 contracts, the piston rod of the clamping oil cylinder 2-3 of the middle clamping traction device 2 extends out to push the roller support 2-5 to move, the roller support 2-5 drives the bend pulley to move downwards to clamp the conveyer belt 6 under the action of the driving roller 2-2 and form a certain enclosed angle, the piston rod of the supporting oil cylinder 3-1 of the middle check device 3 retracts to pull the upper supporting rod 3-2 and the lower supporting rod 3-3 to rotate, so that the upper support 3-4 and the lower support 3-5 are separated from the upper top surface and the lower bottom surface of the roadway, as shown in the figure, the driving roller 2-2 is driven to rotate under the driving action of the hydraulic motor 2-4, the middle clamping traction device 2 takes the conveyer belt 6 as a fulcrum to move forwards along the conveyer belt 6 under the action of friction force to compress the right expansion device 4, the left-side expansion device 4 is pulled open, the position is shown in the figure, the piston rod of the support oil cylinder 3-1 of the middle check device 3 is stretched out again at the moment, the upper support rod 3-2 and the lower support rod 3-3 are pushed to rotate, the upper support 3-4 and the lower support 3-5 are tightly pressed on the upper top surface and the lower bottom surface of the roadway, the middle check device 3 is fixed, the piston rod of the clamping oil cylinder 2-3 of the middle clamping traction device 2 is retracted, the roller support 2-5 is pulled to move, the roller support 2-5 drives the direction-changing roller to move upwards, a certain distance is formed between the direction-changing roller and the driving roller 2-2, and the direction-.

When the left telescopic device 4 contracts, the piston rod of the clamping oil cylinder 2-3 of the left clamping traction device 2 extends out to push the roller support 2-5 to move, the roller support 2-5 drives the bend roller to move downwards to clamp the conveyer belt 6 under the action of the driving roller 2-2 and form a certain enclosed angle, the piston rod of the supporting oil cylinder 3-1 of the left check device 3 retracts to pull the upper supporting rod 3-2 and the lower supporting rod 3-3 to rotate, so that the upper support 3-4 and the lower support 3-5 are separated from the upper top surface and the lower bottom surface of the roadway, as shown in the figure, the driving roller 2-2 is driven to rotate under the driving action of the hydraulic motor 2-4, the left clamping traction device 2 takes the conveyer belt 6 as a fulcrum to move forwards along the conveyer belt 6 under the action of friction force to realize traction, the position is shown in the figure, at the moment, a piston rod of a supporting oil cylinder 3-1 of the left-side check device 3 is stretched out again, the upper supporting rod 3-2 and a lower supporting rod 3-3 are pushed to rotate, the upper supporting seat 3-4 and the lower supporting seat 3-5 are tightly pressed on the upper top surface and the lower bottom surface of the roadway, the left-side check device 3 is fixed, then the piston rod of the clamping oil cylinder 2-3 of the left-side clamping traction device 2 retracts, the roller supporting seat 2-5 is pulled to move, the roller supporting seat 2-5 drives a bend roller to move upwards, a certain distance is formed between the bend roller and the driving roller 2-2, and.

So far, the shortening process of the quick telescopic device 4 of the belt conveyor is completely finished.

The unfolding process is similar to the shortening process, firstly, when the right telescopic device 4 is unfolded, the piston rod of the clamping oil cylinder 2-3 of the right clamping traction device 2 extends out to push the roller support 2-5 to move, the roller support 2-5 drives the bend roller to move downwards to clamp the conveyer belt 6 under the action of the driving roller 2-2 and form a certain enclosed angle, the piston rod of the supporting oil cylinder 3-1 of the right check device 3 retracts to pull the upper supporting rod 3-2 and the lower supporting rod 3-3 to rotate, so that the upper support 3-4 and the lower support 3-5 are separated from the upper top surface and the lower bottom surface of the roadway, as shown in the figure, under the driving action of the hydraulic motor 2-4, the driving roller 2-2 is driven to rotate, the right clamping traction device 2 takes the conveyer belt 6 as a fulcrum to move forwards along the conveyer belt 6 under the action of, and (3) realizing traction movement, wherein the position is shown in the figure, at the moment, the piston rod of the support oil cylinder 3-1 of the right-side check device 3 is stretched out again, the upper support rod 3-2 and the lower support rod 3-3 are pushed to rotate, the upper support 3-4 and the lower support 3-5 are tightly pressed on the upper top surface and the lower bottom surface of the roadway, the right-side check device 3 is fixed, the piston rod of the clamping oil cylinder 2-3 of the right-side clamping traction device 2 is retracted, the roller support 2-5 is pulled to move, the roller support 2-5 drives the direction-changing roller to move upwards, a certain distance is formed between the direction-changing roller and the driving roller.

Further, when the left-side expansion device 4 is unfolded, the piston rod of the clamping oil cylinder 2-3 of the middle clamping traction device 2 extends out to push the roller support 2-5 to move, the roller support 2-5 drives the bend roller to move downwards to clamp the conveyer belt 6 under the action of the driving roller 2-2 and form a certain enclosed angle, the piston rod of the supporting oil cylinder 3-1 of the middle check device 3 retracts to pull the upper supporting rod 3-2 and the lower supporting rod 3-3 to rotate, so that the upper support 3-4 and the lower support 3-5 are separated from the upper top surface and the lower bottom surface of the roadway, as shown in the figure, the driving roller 2-2 is driven to rotate under the driving action of the hydraulic motor 2-4, the middle clamping traction device 2 takes the conveyer belt 6 as a fulcrum to move forwards along the conveyer belt 6 under the action of friction force to compress the right-side expansion device, the left-side expansion device 4 is pulled open, the position is shown in the figure, the piston rod of the support oil cylinder 3-1 of the middle check device 3 is stretched out again at the moment, the upper support rod 3-2 and the lower support rod 3-3 are pushed to rotate, the upper support 3-4 and the lower support 3-5 are tightly pressed on the upper top surface and the lower bottom surface of the roadway, the middle check device 3 is fixed, the piston rod of the clamping oil cylinder 2-3 of the middle clamping traction device 2 is retracted, the roller support 2-5 is pulled to move, the roller support 2-5 drives the direction-changing roller to move upwards, a certain distance is formed between the direction-changing roller and the driving roller 2-2, and the direction-.

Further, when the right telescopic device 4 is unfolded, the piston rod of the clamping oil cylinder 2-3 of the right clamping traction device 2 extends out to push the roller support 2-5 to move, the roller support 2-5 drives the bend roller to move downwards to clamp the conveying belt 6 under the action of the driving roller 2-2 and form a certain enclosed angle, the piston rod of the supporting oil cylinder 3-1 of the right check device 3 retracts to pull the upper supporting rod 3-2 and the lower supporting rod 3-3 to rotate, so that the upper support 3-4 and the lower support 3-5 are separated from the upper top surface and the lower bottom surface of the roadway, as shown in the figure, the driving roller 2-2 is driven to rotate under the driving action of the hydraulic motor 2-4, the right clamping traction device 2 takes the conveying belt 6 as a fulcrum to move forwards along the conveying belt 6 under the action of friction force to realize traction, the position is shown in the figure, at the moment, a piston rod of a supporting oil cylinder 3-1 of the right-side check device 3 is stretched out again, the upper supporting rod 3-2 and a lower supporting rod 3-3 are pushed to rotate, the upper supporting seat 3-4 and the lower supporting seat 3-5 are tightly pressed on the upper top surface and the lower bottom surface of the roadway, the right-side check device 3 is fixed, the piston rod of the clamping oil cylinder 2-3 of the right-side clamping traction device 2 is retracted, the roller supporting seat 2-5 is pulled to move, the roller supporting seat 2-5 drives a bend roller to move upwards, a certain distance is formed between the bend roller and the driving roller 2-2, and.

So far, the expansion process of the quick telescopic device 4 of the belt conveyor is completely finished, and a complete cycle is formed. The embodiment of the utility model provides a module or unit in the device can merge, divide and delete according to actual need.

The above disclosure is only a preferred embodiment of the present invention, which is not intended to limit the scope of the present invention, and the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. It will be understood by those skilled in the art that all or part of the above-described embodiments may be implemented and equivalents thereof may be made to the claims of the present invention while remaining within the scope of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (6)

1. The utility model provides a swift telescoping device of belt conveyor which characterized in that: including a plurality of tight draw gear of clamp, a plurality of contrary device, a plurality of telescoping device, tight draw gear of clamp, telescoping device connect gradually, tight draw gear of clamp includes driven pulley, driving pulley, and driving pulley is driven by external mechanism and is rotated, and the driven pulley sets up in driving pulley's top, and the distance between the two is used for passing the conveyer belt, and the distance between driven pulley, the driving pulley is adjustable, realizes pressing from both sides tight and relaxing the conveyer belt, contrary device sets up in the one side of pressing from both sides tight draw gear, and the upper and lower tip of contrary device is used for contacting with the top and the bottom in tunnel to it is tight to press from both sides tight between draw gear and the tunnel, telescoping device includes a plurality of sliders, first connecting rod, second connecting rod, stand, universal wheel, limiting plate, upper supporting roller set, lower supporting roller set, first connecting rod, second connecting rod cross connection between two adjacent stands, the end parts of the first connecting rod and the second connecting rod are respectively provided with a sliding block, the sliding blocks are sleeved on the stand column so as to enable the first connecting rod, the second connecting rod and the stand column to be connected in a sliding mode, the upper carrier roller group and the lower carrier roller group are arranged on the upper portion and the lower portion of the stand column, the universal wheel is arranged at the bottom of the stand column, and the limiting plate is arranged on the side wall of the stand column.

2. The belt conveyor quick retraction device according to claim 1, further comprising: the clamping traction device comprises a turnabout drum, a driving drum, a clamping oil cylinder, a hydraulic motor, a drum support, a driving mounting frame and a land wheel, wherein the hydraulic motor and the clamping oil cylinder are mounted on the driving mounting frame, the driving drum is connected with the hydraulic motor and driven to rotate by the hydraulic motor, the telescopic end of the clamping oil cylinder is connected with the drum support, the drum support is connected with the turnabout drum to drive the turnabout drum to move up and down, and the turnabout drum is close to or far away from the driving drum, so that the distance between the turnabout drum and.

3. The belt conveyor quick retraction device according to claim 2, characterized in that: the turnabout drums comprise a left turnabout drum and a right turnabout drum, and the left turnabout drum and the right turnabout drum are respectively positioned at the upper left side and the upper right side of the driving drum so as to form an enclosing angle larger than 120 degrees with the driving drum.

4. A belt conveyor quick retraction device according to claim 3, characterized in that: the clamping traction device further comprises a left side lifting roller and a right side lifting roller which are arranged on two sides of the driving installation frame, and the left side lifting roller and the right side lifting roller are used for lifting the lower belt surface of the conveying belt when the traction device is in a non-working state, so that the conveying belt is prevented from being damaged by friction between the conveying belt and a transmission roller.

5. The belt conveyor quick retraction device according to claim 2, characterized in that: contrary device is including supporting cylinder, last bracing piece, lower support bar, upper bracket, undersetting, the one end and the drive mounting bracket of going up bracing piece, lower support bar are articulated, and the two is "eight" word and opens, go up the bracing piece, the other end of lower support bar is used for contacting with the top and the bottom in tunnel respectively, and upper bracket, undersetting are articulated with the tip of last bracing piece, lower support bar respectively, make upper bracket, undersetting can with uneven tunnel top and ground laminating respectively, support cylinder connects between last bracing piece, lower support bar to drive the two and open or fold.

6. The belt conveyor quick retraction device according to claim 2, characterized in that: the quick telescopic device of the belt conveyor further comprises a connecting rod, and the connecting rod is connected between the clamping traction device and the telescopic device.

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