Telescopic belt conveyor tail capable of synchronously retreating and assisting in disassembling rack

Abstract

The utility model provides a telescopic belt conveyor tail capable of synchronously retreating and assisting in disassembling a rack. The telescopic belt conveyor tail comprises a reversed loader lap joint trolley, a stepping mechanism, a belt picking device and a movable bracket set. The reversed loader lap joint trolley is connected with an unloading part of the scraper reversed loader and used for receiving materials and pushing the movable bracket set to move towards one end to be folded. The movable bracket group comprises a plurality of flexibly connected movable brackets, and one end of the movable bracket group is flexibly connected with the reversed loader lap joint trolley; the movable bracket group is used for supporting the conveying rubber belt; the stepping mechanism is flexibly connected to the other end of the movable bracket set and used for driving the movable bracket set to move and unfolding the multiple movable brackets. The belt lifting device is arranged at the outer end of the stepping mechanism and used for supporting a conveying rubber belt located on a middle frame of the crossheading belt conveyor. The device can solve the problems that a crossheading belt conveyor of a coal face needs to be shut down to dismantle a middle frame, and coal mining time is affected, and the problem that a specially-assigned person is needed for guarding is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of coal mine machinery, and specifically relates to a synchronous backoff auxiliary dismantling frame telescopic belt conveyor tail. BACKGROUND

[0002] With the continuous emergence of high-yield and high-efficiency working faces, it is required that the tail of the crossheading telescopic belt conveyor quickly retreats and moves with the rapid advancement of the coal mining working face. The tail of the crossheading telescopic belt conveyor of most fully-mechanized working faces adopts the method of combining the horse-shoe self-moving tail with the telescopic belt conveyor to transport coal. Every time the horse-shoe self-moving tail retreats by 3m, 3 to 4 people are needed to dismantle the middle frame of the crossheading belt conveyor in the production shift. During this period, the crossheading belt conveyor must be stopped, and the entire coal mining work must also be stopped, which seriously affects the coal mining output. In addition, every time the crossheading belt conveyor is started, the conveyor load is large, which affects the service life of the drum, frame, and belt.

[0003] The invention patent application with the application publication number CN115949455A discloses a coal roadway fast excavation self-moving coal bunker and a rear matching system and an implementation method, which arranges mechanical horizontal coal bunkers and other equipment behind the near-horizontal fast excavation equipment, realizes coal flow buffering, continuous transportation, and automatic length adaptation of pipelines such as ventilation, power supply, water supply, and communication with the equipment, realizes real-time extension of the telescopic belt conveyor tail, realizes the rear matching plan operation management based on the excavation support spacing of 1m, and is beneficial to the continuity of the excavation equipment in every 5m operation cycle. The rear matching system includes a horizontal coal bunker, a device vehicle, a straddle transfer conveyor, and a self-extending tail, etc. The device vehicle and the horizontal coal bunker are combined to form a self-moving coal bunker. The coal roadway fast excavation self-moving coal bunker and the rear matching system can shorten the intermittent transportation time, reduce the auxiliary operation time of pulling and moving the telescopic belt conveyor tail, increase the single operation cycle footage, and improve the roadway excavation efficiency, but it does not completely solve the problem of stopping the crossheading belt conveyor of the coal mining working face to dismantle the middle frame, which affects the coal mining time. At the same time, it also does not solve the problem of the movement of the crossheading belt conveyor tail being out of synchronization with the movement of the scraper transfer conveyor and requiring special personnel to be on duty. UTILITY MODEL CONTENTS

[0004] In order to solve the problem of stopping the crossheading belt conveyor of the coal mining working face to dismantle the middle frame, which affects the coal mining time, and solve the problem of the movement of the crossheading belt conveyor tail being out of synchronization with the movement of the scraper transfer conveyor and requiring special personnel to be on duty, the technical scheme adopted by the utility model is: a synchronous backoff auxiliary dismantling frame telescopic belt conveyor tail, which comprises a transfer conveyor lapping trolley, a stepping mechanism, a belt lifting device, and a moving bracket group.

[0005] The transfer conveyor lapping trolley is connected to the unloading part of the scraper transfer conveyor, is used to receive materials and push the moving bracket group to move towards one end to fold up;

[0006] The mobile bracket group comprises several flexible connection mobile brackets, one end of the mobile bracket group is flexibly connected with the transfer machine overlap trolley; the mobile bracket group is used for supporting the conveying belt;

[0007] The step mechanism is flexibly connected at the other end of the mobile bracket group, used for driving the mobile bracket group to move and unfolding several mobile brackets;

[0008] The belt lifting device is arranged at the outer end of the step mechanism, used for lifting the conveying belt on the middle frame of the cross conveyer;

[0009] Based on the above, further comprising a middle rail, the middle rail is arranged below the transfer machine overlap trolley and the mobile bracket group, used for moving the transfer machine overlap trolley and the mobile bracket group.

[0010] Based on the above, the step mechanism comprises a rack lifting device, a step guide rail, a pushing cylinder, a lifting cylinder, a step rack, a telescopic front support leg, a telescopic rear support leg;

[0011] The step guide rail is connected with the middle rail by a pin shaft, one end of the front support leg and the rear support leg is connected with the step rack by a bolt, the other end of the front support leg and the rear support leg is slidably arranged on the step guide rail, the rack lifting device is arranged on the step rack, and the lifting cylinder is arranged on the rack lifting device.

[0012] Based on the above, the belt lifting device comprises a belt lifting rack, a belt lifting cylinder, and a belt lifting roller; the belt lifting rack is connected with the step rack by a pin shaft, one end of the belt lifting cylinder is connected with the belt lifting rack by a pin shaft, the other end of the belt lifting cylinder is connected with the step rack by a pin shaft, and the belt lifting roller is arranged on the side of the belt lifting rack close to the middle frame of the cross conveyer.

[0013] Based on the above, the mobile bracket comprises a left rack body, a right rack body, a connecting beam, and a supporting roller, the left rack body and the right rack body are arranged on both sides of the connecting beam, and the supporting roller is installed on the connecting beam.

[0014] Based on the above, the transfer machine overlap trolley comprises a first roller, a trolley rack, a belt pressing roller, a material guide groove, a tail roller, left and right support legs, and a support leg cylinder;

[0015] The material guide groove is arranged above the trolley rack, used for receiving material, the support leg cylinder is installed on the left and right support legs, the left and right support legs are connected with the trolley rack by a bolt, used for lifting the trolley rack and the scraper transfer machine;

[0016] The first roller is installed on the lower side of the trolley frame through a pin shaft, and the trolley frame is connected with the unloading part of the scraper transfer conveyor.

[0017] Based on the above, the specifications of the plurality of mobile carriers are the same.

[0018] Based on the above, the plurality of mobile carriers are connected through chains.

[0019] Based on the above, the two ends of the mobile carrier group are connected with the transfer conveyor lapping trolley and the step mechanism through chains.

[0020] The synchronous back-off auxiliary dismantling frame telescopic belt conveyor tail can solve the problem that the intermediate frame of the belt conveyor in the gate needs to be dismantled, which affects the coal mining time, and can also solve the problem that the movement of the tail of the belt conveyor in the gate is not synchronized with the movement of the scraper transfer conveyor, and a dedicated person needs to be on duty.

[0021] Therefore, the synchronous back-off auxiliary dismantling frame telescopic belt conveyor tail can solve the problem that the belt conveyor in the gate of the coal mining face needs to be stopped for dismantling the intermediate frame, which affects the coal mining time, and can also solve the problem that the movement of the tail of the belt conveyor in the gate is not synchronized with the movement of the scraper transfer conveyor, and a dedicated person needs to be on duty. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 and Figure 2 is a distribution position schematic diagram of the synchronous back-off auxiliary dismantling frame telescopic belt conveyor tail provided by the utility model.

[0023] Figure 3 is a step belt lifting device structure schematic diagram in the synchronous back-off auxiliary dismantling frame telescopic belt conveyor tail provided by the utility model.

[0024] Figure 4 and Figure 5 is a mobile carrier structure schematic diagram in the synchronous back-off auxiliary dismantling frame telescopic belt conveyor tail provided by the utility model.

[0025] Figure 6 and Figure 7 is a schematic view of a transfer machine lap joint trolley structure in a tail of a synchronous back-off auxiliary disassembly rack telescopic belt conveyor provided by the utility model.

[0026] In the figure: 1, a scraper transfer machine; 2, a transfer machine lap joint trolley; 21, a tail roller; 22, a trolley frame; 23, a supporting leg oil cylinder; 24, left and right supporting legs; 25, a belt pressing roller; 26, a material guide groove; 27, a first roller; 3, a middle rail; 4, a moving bracket; 41, a left frame body; 42, a connecting cross beam; 43, a roller; 44, a right frame body; 45, a second roller; 5, a chain; 6, a step mechanism; 61, a rear supporting leg; 62, a step frame; 63, a frame supporting device; 64, a supporting oil cylinder; 65, a pushing oil cylinder; 66, a front supporting leg; 67, a step guide rail; 7, a belt lifting device; 71, a belt lifting oil cylinder; 72, a belt lifting frame; 73, a belt lifting roller; 8, a middle frame of a crossheading belt conveyor. DETAILED DESCRIPTION

[0027] The technical scheme of the utility model will be described in further detail below through specific embodiments.

[0028] Embodiment 1

[0029] The embodiment provides a synchronous back-off auxiliary disassembly rack telescopic belt conveyor tail, as shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 , which comprises a transfer machine lap joint trolley 2, a step mechanism 6, a belt lifting device 7, a middle rail 3 and a moving bracket group. The transfer machine lap joint trolley 2 is connected to the unloading part of the scraper transfer machine 1, used for receiving materials and pushing the moving bracket group to move towards one end to fold up.

[0030] The middle rail 3 is arranged below the transfer machine lap joint trolley 2 and the moving bracket group, used for moving the transfer machine lap joint trolley 2 and the moving bracket group.

[0031] The moving bracket group comprises a plurality of flexibly connected moving brackets 4, and one end of the moving bracket group is flexibly connected to the transfer machine lap joint trolley 2. The moving bracket group is used for supporting the conveying belt. The step mechanism 6 is flexibly connected to the other end of the moving bracket group, used for driving the moving bracket group to move and unfolding a plurality of the moving brackets 4. The belt lifting device 7 is arranged at the outer end of the step mechanism 6, used for lifting the conveying belt on the middle frame 8 of the crossheading belt conveyor.

[0032] Specifically, the intermediate track 3 adopts a V-shaped or planar structure, the left and right tracks are connected by welding, and the intermediate tracks 3 are connected by a pin shaft to form a track group with a length of 40 m.

[0033] Embodiment 2

[0034] The embodiment provides a synchronous back-off auxiliary disassembly rack telescopic belt conveyor tail, and the main difference between the embodiment and the embodiment 1 is that in the embodiment, the transfer machine lapping trolley 2 is composed of a first roller 27, a trolley frame 22, a belt pressing roller 25, a material guide groove 26, a buffer bed option, a tail drum 21, left and right supporting legs 24 and a supporting leg oil cylinder 23.

[0035] The material guide groove 26 and the buffer bed option are arranged above the trolley frame 22 and used for receiving materials. The supporting leg oil cylinder 23 is respectively installed on the left and right supporting legs 24. The left and right supporting legs 24 are connected with the trolley frame 22 through bolts and used for supporting the trolley frame 22 and the scraper transfer machine 1.

[0036] The first roller 27 is installed on the lower side of the trolley frame 22 through a pin shaft. The trolley frame 22 of the transfer machine lapping trolley is connected with the unloading part of the scraper transfer machine 1. The first roller 27 walks on the intermediate track 3. The transfer machine lapping trolley 2 and the movable bracket 4 are connected through the chain 5.

[0037] Embodiment 3

[0038] The embodiment provides a synchronous back-off auxiliary disassembly rack telescopic belt conveyor tail, and the main difference between the embodiment and the embodiment 2 is that in the embodiment, the movable bracket 4 is composed of a left frame body 41, a right frame body 44, a connecting cross beam 42, a second roller 45 and a supporting roller 43. The left frame body 41 and the right frame body 44 are connected through the connecting cross beam 42 and connected together through bolts. The second roller 45 is installed on the lower side of the left frame body 41 and the right frame body 44 through a pin shaft. The supporting roller 43 is installed on the connecting cross beam 42. The movable brackets 4 are connected through the chain 5, and all the movable brackets 4 walk back and forth on the intermediate track 3 through the second roller 45 to support the belt.

[0039] Embodiment 4

[0040] The embodiment provides a synchronous back-off auxiliary disassembly rack telescopic belt conveyor tail, and the main difference between the embodiment and the embodiment 1 and the embodiment 2 is that in the embodiment,

[0041] The step mechanism 6 is composed of a front supporting leg 66, a rear supporting leg 61, a rack supporting device 63, a step guide rail 67, a pushing oil cylinder 65, a supporting oil cylinder 64 and a step rack 62. The front supporting leg 66 and the rear supporting leg 61 are composed of an inner sleeve, an outer sleeve, a supporting leg oil cylinder and a third roller.

[0042] The front leg 66 and the rear leg 61 are fixed on the walking frame 62 by bolts, and the front and rear leg rollers of the walking mechanism 6 walk back and forth on the walking guide rail 67. The walking guide rail 67 of the walking mechanism 6 is connected with the middle rail 3 by a pin shaft. The walking frame 62 is connected with the moving bracket 4 by the chain 5. The frame jacking device 63 is connected with the walking frame 62 by bolts. The frame jacking device 63 is extended to the roof of the roadway by the jacking cylinder 64 to increase the friction of the walking mechanism.

[0043] The belt lifting device 7 is composed of a belt lifting frame 72, a belt lifting cylinder 71 and a belt lifting roller 73. The belt lifting frame 72 is connected with the walking frame 62 by a pin shaft. One end of the belt lifting cylinder 71 is connected with the belt lifting frame 72 by a pin shaft, and the other end is connected with the walking frame 62 by a pin shaft. The belt lifting roller 73 is installed at the end far away from the walking frame 62.

[0044] Specifically, the synchronous back-off auxiliary disassembly frame telescopic belt conveyor tail provided by the utility model can be installed between the scraper transfer conveyor and the middle frame 8 of the gate road belt conveyor.

[0045] The synchronous back-off auxiliary disassembly frame telescopic belt conveyor tail is installed between the scraper transfer conveyor and the middle frame 8 of the gate road belt conveyor.

[0046] When the coal mining machine finishes one stroke, the hydraulic support and the scraper conveyor move towards the coal seam, and the scraper transfer conveyor 1 also starts to move along the gate roadway towards the middle frame of the gate road belt conveyor,

[0047] Meanwhile, the transfer conveyor lapping trolley is driven to move on the middle rail.

[0048] This action is continuously performed, and the moving bracket is continuously compressed together to realize the synchronous movement of the middle frame of the gate road belt conveyor and the scraper transfer conveyor, so that the coal mining shift does not need to arrange a person on duty to move the machine, and continuous coal mining and withdrawal of 20 m can be realized without stopping the gate road belt conveyor.

[0049] When the 20 m stroke is finished, the maintenance shift starts to move the walking mechanism towards the middle frame of the gate road belt conveyor.

[0050] When the front leg and the rear leg are lifted, the pushing cylinder is extended, the walking frame is pushed to move towards the middle frame of the gate road belt conveyor, and the moving bracket is driven to move and separate by the chain.

[0051] When the front leg and the rear leg are retracted, the pushing cylinder is retracted, the walking guide rail drives the middle rail to move towards the middle frame of the gate road belt conveyor. Meanwhile, the belt lifting device lifts the belt, and a section of the middle frame of the gate road belt conveyor is removed. The action is continuously repeated to continue moving until the chain 5 is completely straightened. At this time, the coal mining action can be continued.

[0052] It should be noted that the above examples are only used to illustrate the technical solutions of the present application, but not to limit them. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the specific embodiments of the present application can be modified or some technical features can be replaced by equivalent ones without departing from the spirit of the present application. They should all be covered in the technical solution range of the present application claimed.

Claims

1. A synchronous back-off assisted disassembly rack telescopic belt conveyor tail, characterized in that: The application relates to a mobile support frame for a scraper conveyer, which comprises a scraper conveyer lap joint trolley, a step mechanism, a belt lifting device and a mobile support frame group. The scraper conveyer lap joint trolley is connected with the unloading part of the scraper conveyer, and is used for receiving materials and pushing the mobile support frame group to move to one end to be folded. The mobile support frame group comprises a plurality of flexible mobile support frames, one end of the mobile support frame group is flexibly connected with the scraper conveyer lap joint trolley, and the mobile support frame group is used for supporting the conveying belt. The step mechanism is flexibly connected with the other end of the mobile support frame group, and is used for driving the mobile support frame group to move and unfolding the mobile support frames. The belt lifting device is arranged at the outer end of the step mechanism, and is used for lifting the conveying belt on the middle frame of the crossheading belt conveyer.

2. The synchronous back-off assisted disassembly rack telescopic belt conveyor tail according to claim 1, characterized in that: The application further comprises a middle rail arranged below the scraper conveyer lap joint trolley and the mobile support frame group, and used for moving the scraper conveyer lap joint trolley and the mobile support frame group.

3. The synchronous back-off assisted disassembly rack telescopic belt conveyor tail according to claim 2, characterized in that: The step mechanism comprises a frame supporting device, a step guide rail, a pushing oil cylinder, a supporting oil cylinder, a step frame, a telescopic front supporting leg and a telescopic rear supporting leg. The step guide rail is connected with the middle rail through a pin shaft, one end of the front supporting leg and the rear supporting leg is connected with the step frame through a bolt, the other end of the front supporting leg and the rear supporting leg is slidably arranged on the step guide rail, the frame supporting device is arranged on the step frame, and the supporting oil cylinder is arranged on the frame supporting device.

4. The synchronous back-off assisted disassembly rack telescopic belt conveyor tail of claim 3, wherein: The belt lifting device comprises a belt lifting frame, a belt lifting oil cylinder and a belt lifting roller, the belt lifting frame is connected with the step frame through a pin shaft, one end of the belt lifting oil cylinder is connected with the belt lifting frame through a pin shaft, the other end of the belt lifting oil cylinder is connected with the step frame through a pin shaft, and the belt lifting roller is arranged on the side of the belt lifting frame close to the middle frame of the crossheading belt conveyer.

5. The synchronous back-off assisted disassembly rack retractable belt conveyor tail of claim 1 or 2 or 3 or 4, characterized in that: The mobile support frame comprises a left frame body, a right frame body, a connecting beam and a supporting roller, the left frame body and the right frame body are arranged on the two sides of the connecting beam, and the supporting roller is mounted on the connecting beam.

6. The synchronous back-off assisted disassembly rack telescopic belt conveyor tail of claim 5, wherein: The scraper conveyer lap joint trolley comprises a first roller, a trolley frame, a belt pressing roller, a material guide groove, a tail roller, left and right supporting legs and a supporting oil cylinder. The material guide groove is arranged above the trolley frame and is used for receiving materials, the supporting oil cylinder is mounted on the left and right supporting legs, the left and right supporting legs are connected with the trolley frame through a bolt, and the trolley frame and the scraper conveyer are lifted by the left and right supporting legs. The first roller is mounted on the lower side of the trolley frame through a pin shaft, and the trolley frame is connected with the unloading part of the scraper conveyer.

7. The synchronous back-off assisted disassembly rack telescopic belt conveyor tail of claim 1, wherein: The specifications of the mobile support frames are the same.

8. The synchronous back-off assisted disassembly rack retractable belt conveyor tail of claim 1 or 2 or 3 or 4 or 7, characterized in that: The mobile support frames are connected through chains.

9. The synchronous back-off assisted disassembly rack retractable belt conveyor tail of claim 8, wherein: The two ends of the mobile support frame group are connected with the scraper conveyer lap joint trolley and the step mechanism through chains.

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