Coal mine working face transport chute without repeated transport branch system

Abstract

A system for non-repeated transport and support of coal mine working face transport chute, relates to the technical field of coal mine underground transport chute conveying equipment, includes a transport trolley and a support assembly; the support assembly includes no less than two gantry supports, the gantry support includes a support top beam, a first telescopic rod, and a second telescopic rod. The support method of the support assembly is that multiple gantry supports support the working face transport chute at the same time. After the transfer machine moves forward for a certain distance, the forward movement method of the support assembly is to remove the last gantry support, transport it forward to the front end by the transport trolley, and then extend the first telescopic rod and the second telescopic rod, so that the gantry supports the working face transport chute again, so that the working face transport chute will not be supported twice, three times, or even repeatedly during the support process, and the working face transport chute will not be damaged due to such repeated support methods, so it will not take time and manpower to repair it, and it will not affect the work progress.

Description

Technical Field

[0001] The invention relates to the technical field of coal mine underground transport chute conveying equipment, and in particular to a coal mine working face transport chute non-repeated transport branch system. Background Art

[0002] The scraper loader in the coal mine working face chute is huge in size. In order to enable it to operate smoothly underground in the coal mine, the roof of the working face transport chute needs to be supported to provide sufficient operating space for the loader.

[0003] At present, the support method for the top plate of the transport chute in the underground mining working face of coal mines is to use an advance support. The transfer machine keeps moving forward during the work process. After the transfer machine moves a certain distance, the advance support also needs to move forward with the transfer machine. Since the top beam surface area of ​​the advance support is large, its contact area with the top plate of the working face transport chute is also large, which will cause the same part of the top plate of the working face transport chute to be repeatedly depressurized and pressurized twice, three times, or even many times. Such repeated support methods are likely to cause the top plate of the working face transport chute to be broken, the formation of top bulges and other damages, and it takes time and manpower to repair it in time, which will seriously affect the advancement speed of the equipment. Summary of the invention

[0004] In view of this, it is necessary to provide a non-repeated support coal mine working face transport drift system without repeated transport branches.

[0005] A non-repeated transport support system for a coal mine working face transport chute is arranged in an underground coal mine to support the top plate of the working face transport chute so as to facilitate the operation of a transfer machine, and includes a transport trolley and a support assembly. The transport trolley is arranged on the transfer machine and can move along the length direction of the transfer machine. The transport trolley can drive the support assembly to move along the length direction of the transfer machine; the support assembly includes no less than two gantry supports, the gantry support includes a support top beam, and the two ends of the support top beam are respectively longitudinally extended with a first telescopic rod and a second telescopic rod; the first telescopic rod and the second telescopic rod are extended to drive the support top beam to contact the top plate of the working face transport chute and support After the transfer machine moves forward, shorten the first telescopic rod and the second telescopic rod of the last gantry support at the rear end, and rotate the last gantry support horizontally to a predetermined angle. Use a frame transport trolley to fix the last gantry support, and use the frame transport trolley to drive the last gantry support to move along the length direction of the transfer machine, and make the last gantry support pass through the middle of the other gantry supports to the front end, extend the first telescopic rod and the second telescopic rod of the gantry support, so that the support top beam contacts the top plate of the working surface transport chute and supports it, and so on, so as to realize the gantry support following the movement of the transfer machine for cyclic support.

[0006] Preferably, the coal mine working face transport chute non-repeated transport support system also includes a support frame, the transfer machine includes a crusher, the support frame includes a support top beam, the support top beam is located directly above the crusher, and a third telescopic rod and a fourth telescopic rod are longitudinally extended at both ends of the support top beam. The third telescopic rod and the fourth telescopic rod are extended to drive the support top beam to contact the top plate of the working face transport chute and support it, so as to provide protection for the top plate at the crusher, and the columns of the support frame are connected to the crusher.

[0007] Preferably, the transfer machine also includes a head, a middle trough, and the head, the middle trough, and the crusher are arranged in sequence from front to back horizontally. The crusher is arranged near the tail of the transfer machine, the gantry support is located between the crusher and the head, and the support top beam is located directly above the middle trough.

[0008] Preferably, the rack transport trolley includes a gear, a base, and a driver, the gear is rotatably connected to the base, and the driving end of the driver is fixedly connected to the rotating shaft of the gear to drive the gear to rotate.

[0009] Preferably, a rack is provided along the length direction of the middle slot, the rack is meshed with a gear, and the gear rotates and moves along the rack, so that the rack transport trolley can move along the length direction of the middle slot.

[0010] Preferably, the rack transport trolley also includes a pallet and a telescopic member longitudinally arranged on the base, wherein two ends of the telescopic member are respectively connected to the base and the pallet, and the telescopic member is extended and retracted to drive the pallet to move up and down.

[0011] Preferably, a fixing piece is also provided on the pallet, and the fixing piece is matched with the top beam of the bracket so that the top beam of the bracket is clamped and fixed with the fixing piece, thereby facilitating the rack transport trolley to drive the gantry bracket to rotate and move.

[0012] Preferably, the center of the tray is rotatably connected to the telescopic member, so that the tray can rotate in a plane with the telescopic member as the rotation point, thereby driving the portal bracket to rotate in a plane.

[0013] Preferably, the distance between every two gantry supports is 0.8 to 1 meter, and multiple gantry supports are arranged in parallel to meet the support distance requirements.

[0014] The present invention adopts the above-mentioned technical scheme, and its beneficial effect lies in: the supporting method of the support assembly is a method in which multiple gantry supports the top plate of the working face transport chute at the same time. After the transfer machine moves forward a certain distance, the forward moving method of the support assembly is to remove the last gantry support, transport it forward to the front end by the transport trolley, and then extend the first telescopic rod and the second telescopic rod to make the gantry support support the top plate of the working face transport chute again. Such a cyclic support forward moving method makes it possible for the top plate of the working face transport chute to not be repeatedly supported twice, three times, or even multiple times during the support process. Therefore, the top plate of the working face transport chute will not be damaged due to such repeated support method, and time and manpower will not be spent on repairing the damage to the top plate of the working face transport chute, and the equipment advancement speed will not be affected accordingly. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is the main view of the non-repeated transport branch system of the coal mine working face transport chute, in which the direction of the arrow is the movement direction of the transfer machine, gantry support, and transport trolley.

[0016] Figure 2 It is a top view of the support assembly cooperating with the top plate of the working face transport chute, wherein the gantry bracket drawn with dotted lines is a schematic diagram of the gantry bracket before and after rotation after the first telescopic rod and the second telescopic rod are shortened.

[0017] Figure 3 It is a side view of the portal bracket.

[0018] Figure 4 This is the right side view of the transport trolley.

[0019] Figure 5 This is the front view of the fixing.

[0020] In the figure: a coal mine working face transport chute without repeated transport support system 10, a transport frame trolley 11, a base 111, a driver 112, a tray 113, a telescopic member 114, a fixing member 115, a gantry support 12, a support top beam 121, a first telescopic rod 122, a second telescopic rod 123, a support frame 13, a support top beam 131, a third telescopic rod 132, a fourth telescopic rod 133, a transfer machine 20, a crusher 21, a machine head 22, and a middle trough 23. DETAILED DESCRIPTION

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Figure 1 For reference, all the directional words "front" below are Figure 1 In the left, all directional words "after" are Figure 1 In the right.

[0022] Please see Figures 1 to 3 The embodiment of the present invention provides a non-repeated transport support system 10 for a coal mine working face transport chute, which is arranged to support the top plate of the working face transport chute in an underground coal mine so as to facilitate the operation of a transfer machine 20, and includes a transport trolley 11 and a support assembly. The transport trolley 11 is arranged on the transfer machine 20 and can move along the length direction of the transfer machine 20. The transport trolley 11 can drive the support assembly to move along the length direction of the transfer machine 20; the support assembly includes no less than two gantry supports 12, and the gantry support 12 includes a support top beam 121, and the two ends of the support top beam 121 are respectively longitudinally extended with a first telescopic rod 122 and a second telescopic rod 123; the first telescopic rod 122 and the second telescopic rod 123 are extended to drive the support top beam 121 to contact the working face transport chute. After the transfer machine 20 moves forward, the first telescopic rod 122 and the second telescopic rod 123 of the last gantry support 12 at the rear end are shortened, and the last gantry support 12 is rotated horizontally to a predetermined angle. The last gantry support 12 is fixed by the carriage trolley 11, and the last gantry support 12 is driven by the carriage trolley 11 to move along the length direction of the transfer machine 20, and the last gantry support 12 is passed from the middle of the other gantry supports 12 to the front end, and the first telescopic rod 122 and the second telescopic rod 123 of the gantry support are extended to make the support top beam 121 contact the top plate of the transport trough of the working surface and support it, and so on, so as to realize the cyclic support of the gantry support 12 following the movement of the transfer machine 20.

[0023] Furthermore, the coal mine working face transport chute non-repeated transport support system 10 also includes a support frame 13, the transfer machine 20 includes a crusher 21, the support frame 13 includes a support top beam 121, the support top beam 121 is located directly above the crusher 21, and the third telescopic rod 132 and the fourth telescopic rod 133 are longitudinally extended at both ends of the support top beam 121. The third telescopic rod 132 and the fourth telescopic rod 133 are extended to drive the support top beam 121 to contact the top plate of the working face transport chute and support it, so as to provide operating space for the crusher 21.

[0024] Furthermore, the transfer machine 20 also includes a head 22 and a middle trough 23. The head 22, the middle trough 23, and the crusher 21 are arranged in sequence from front to back horizontally. The crusher 21 is arranged near the tail of the transfer machine 20. The gantry support 12 is located between the crusher 21 and the head 22, and the support top beam 121 is located directly above the middle trough 23.

[0025] Please see Figure 4 , Figure 5Further, the transport trolley 11 includes a gear, a base 111, and a driver 112. The gear is rotatably connected to the base 111, and the driving end of the driver 112 is fixedly connected to the rotating shaft of the gear to drive the gear to rotate. The gear is an even number of not less than two, and the same number of gears are located on opposite sides of the base 111. The driver 112 is a hydraulic motor.

[0026] Furthermore, a rack is provided along the length direction of the middle groove 23 , and the rack is meshed with a gear, and the gear rotates and moves along the rack, so that the rack transport trolley 11 moves along the length direction of the middle groove 23 in this way.

[0027] Furthermore, the transport trolley 11 further includes a tray 113 and a telescopic member 114 longitudinally arranged on the base 111, the two ends of the telescopic member 114 are respectively connected to the base 111 and the tray 113, and the telescopic member 114 telescopes to drive the tray 113 to move up and down. The telescopic member 114 is a scissor-type telescopic frame.

[0028] Furthermore, a fixing piece 115 is also provided on the tray 113 , and the fixing piece 115 is adapted to the support top beam 121 , so that the support top beam 121 and the fixing piece 115 are clamped and fixed, thereby facilitating the transport trolley 11 to drive the gantry support 12 to rotate and move.

[0029] Furthermore, the center of the tray 113 is rotatably connected to the telescopic member 114, so that the tray 113 can rotate in a plane with the telescopic member 114 as the rotation point, thereby driving the gantry bracket 12 to rotate in a plane. The rotation center of the tray 113 is fixedly connected to a rotating cylinder, that is, the rotation function is realized by using a rotating cylinder.

[0030] Furthermore, the distance between every two gantry supports 12 is 0.8-1 meter. The number of gantry supports 12 is determined according to the length of the middle slot 23 of the transfer machine 20, and multiple gantry supports 12 are arranged in parallel to meet the support distance requirements.

[0031] Furthermore, the bracket top beam 121 is perpendicular to the first telescopic rod 122 and the second telescopic rod 123, and the first telescopic rod 122 is parallel to the second telescopic rod 123; the support top beam 131 is perpendicular to the third telescopic rod 132 and the fourth telescopic rod 133, and the third telescopic rod 132 is parallel to the fourth telescopic rod 133.

[0032] The support assembly is used in the following manner: manually keep all the gantry supports 12 at a distance of 0.8 to 1 meter, extend the first telescopic rod 122 and the second telescopic rod 123 of all the gantry supports 12, make the support top beams 121 of all the gantry supports 12 contact and support the top plate of the working surface transport chute, turn on the transfer machine 20 to start operation, after the transfer machine 20 operates and moves forward for a distance, start the drive 112 to reverse, drive the transport trolley 11 to move to the bottom of the support top beam 121 of the last gantry support 12 at the rear end of the support assembly, stop the drive 112, manually extend the telescopic member 114 to a position close to the support top beam 121 of the last gantry support 12, manually shorten the first telescopic rod 122 and the second telescopic rod 123 of the last gantry support 12, make the support top beam 121 of the last gantry support 12 contact with the fixed The fixed piece 115 is clamped and fixed, the plane rotating tray 113 is 30°~150°, and the telescopic piece 114 is shortened to ensure that the last gantry bracket 12 is suspended, and the driver 112 is started to rotate forward. The driver 112 drives the last gantry bracket 12 to move forward along the length direction of the middle groove 23, and passes through the middle of all other gantry brackets. The last gantry bracket 12 is moved to the front end of the support assembly by the transport trolley 11, and the gantry bracket 12 is manually removed from the fixed piece 115, and its first telescopic rod 122 and the second telescopic rod 123 are extended so that its bracket top beam 121 contacts the top plate of the working surface transport chute and supports it, so that the last gantry bracket 12 becomes the first gantry bracket 12, and when the transfer machine 20 continues to move forward, the above-mentioned operation is repeated, and the top plate of the working surface transport chute is supported in this cycle.

[0033] The use method of the support frame 13 is as follows: manually set the support top beam 121 of the support frame 13 at a position directly above the crusher 21, extend the third telescopic rod 132 and the fourth telescopic rod 133, so that the support top beam 121 contacts the top plate of the working surface transport chute and supports it, the transfer machine 20 moves forward, and the crusher 21 also moves forward with the transfer machine 20, and manually move the support frame 13 according to the moving distance of the crusher 21, that is, shorten the third telescopic rod 132 and the fourth telescopic rod 133 and move the support frame 13 until the support top beam 121 is directly above the crusher 21, extend the third telescopic rod 132 and the fourth telescopic rod 133, so that the support top beam 121 contacts the top plate of the working surface transport chute and supports it, so that the support top beam 121 is always directly above the crusher 21.

[0034] What is disclosed above is only a preferred embodiment of the present invention, which certainly cannot be used to limit the scope of rights of the present invention. A person skilled in the art can understand that all or part of the processes of the above embodiments and equivalent changes made according to the claims of the present invention still fall within the scope of the invention.

Claims

1. A non-repeated transport support system for coal mine working face transport chute, which is arranged on the top plate of the coal mine underground support working face transport chute to facilitate the operation of the transfer machine, and is characterized by: The support assembly comprises a transport trolley and a support component. The transport trolley is arranged on the transfer machine and can move along the length direction of the transfer machine. The transport trolley can drive the support component to move along the length direction of the transfer machine. The support component comprises no less than two gantry supports. The gantry supports comprise a support top beam. The two ends of the support top beam respectively extend longitudinally with a first telescopic rod and a second telescopic rod. The first telescopic rod and the second telescopic rod extend to drive the support top beam to contact the top plate of the transport chute of the working surface and provide support. After the transfer machine moves forward, the first telescopic rod and the second telescopic rod of the last gantry support at the rear end are extended. The retractor rod is shortened, and the last gantry support is rotated horizontally to a predetermined angle, and the last gantry support is fixed by a frame transport trolley, and the last gantry support is driven to move along the length direction of the transfer machine by the frame transport trolley, and the last gantry support is made to pass from the middle of the other gantry supports to the front end, and the first telescopic rod and the second telescopic rod of the gantry support are extended to make the support top beam contact the top plate of the transport chute of the working surface and support it, and so on, so as to realize the gantry support following the movement of the transfer machine for cyclic support; it also includes a support frame, the transfer machine includes a crusher, and the support frame includes The support top beam is located directly above the crusher, and a third telescopic rod and a fourth telescopic rod are longitudinally extended at both ends of the support top beam. The third telescopic rod and the fourth telescopic rod are extended to drive the support top beam to contact and support the top plate of the working surface transport chute, so as to provide protection for the top plate of the crusher, and the column of the support frame is connected to the crusher; the transfer machine also includes a head and a middle trough, and the head, the middle trough and the crusher are arranged in sequence from front to back horizontally, and the crusher is arranged near the tail of the transfer machine, the gantry support is located between the crusher and the head, and the support top beam is located in the middle trough Directly above; the rack transport trolley includes a gear, a base, and a driver, the gear is rotatably connected to the base, and the driving end of the driver is fixedly connected to the rotating shaft of the gear to drive the gear to rotate; the middle groove is provided with a rack along the length direction, the rack is meshed with the gear, and the gear rotates and moves along the rack, so as to move the rack transport trolley along the length direction of the middle groove in this way; the rack transport trolley also includes a pallet, and a telescopic part longitudinally arranged on the base, the two ends of the telescopic part are respectively connected to the base and the pallet, the telescopic part is extended and retracted to drive the pallet to move up and down, and the telescopic part is a scissor-type telescopic frame.

2. The coal mine working face transport chute non-repeated transport branch system according to claim 1, characterized in that: The pallet is also provided with a fixing piece, which is matched with the top beam of the bracket so that the top beam of the bracket is clamped and fixed with the fixing piece, thereby facilitating the rack transport trolley to drive the gantry bracket to rotate and move.

3. The coal mine working face transport chute non-repeated transport branch system according to claim 2, characterized in that: The center of the tray is rotatably connected to the telescopic member, so that the tray can rotate in a plane with the telescopic member as a rotation point, thereby driving the portal bracket to rotate in a plane.

4. The coal mine working face transport chute non-repeated transport branch system as claimed in claim 3, characterized in that: The distance between the gantry supports is 0.8~1 meter, and multiple gantry supports are arranged in parallel to meet the support distance requirements.

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