Matched long-distance telescopic belt frame system used after fully-mechanized excavating

Abstract

The invention provides a matched long-distance telescopic belt frame system used after fully-mechanized excavation, which comprises a transition connecting mechanism, a telescopic belt frame and a telescopic belt frame, the traction frame is connected with the rear end of the transition connecting mechanism; the rail assembly is connected with the rear end of the traction frame; the telescopic frame is arranged on the track assembly and located behind the traction frame; the two brake frames are arranged on the track assembly and located behind the telescopic frame; the traction oil cylinder is used for connecting the two brake frames; the tractor frame, the telescopic frame and the brake frame are connected through the scissor telescopic belt bracket; and the height adjusting frame is arranged behind the braking frame and is used for adjusting the height of the belt. According to the belt frame system, automatic extension of the circulation length of the fully-mechanized excavating operation is achieved, potential safety hazards caused by the process mode that a belt is dragged manually in the fully-mechanized excavating process are effectively avoided, the auxiliary operation time is shortened, and the roadway excavating efficiency is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of belt conveying equipment, and particularly relates to a long-distance telescopic belt rack system for the post-matching of comprehensive tunneling. Background Art

[0002] With the improvement of the mechanization degree of coal mine excavation and the continuous improvement of the rapid excavation technology of combined tunneling and bolting operations, the driving footage has increased significantly.

[0003] The current coal mine conveying device is mainly a fixed belt conveyor with a certain length. The fixed belt conveyor has a simple and practical structure and is often used in places where the conveying distance does not change much.

[0004] In the process of implementing the present invention, the inventors found that there are at least the following problems in the prior art: in the driving roadway, for every certain distance of combined tunneling and bolting operations, the operation needs to be stopped. The operators set up the belt rack of the fixed belt conveyor and drag the belt, and the auxiliary operation time is relatively long. Therefore, there are great potential safety hazards in the long-term auxiliary operation of the comprehensive tunneling face. Summary of the Invention

[0005] The present invention aims to solve at least one of the technical problems in the related art to some extent.

[0006] For this purpose, the object of the present invention is to provide a long-distance telescopic belt rack system for the post-matching of comprehensive tunneling, which realizes the automatic extension of the cycle length of comprehensive tunneling operations, effectively solves the potential safety hazards brought by manual dragging of the belt and the process method in comprehensive tunneling, reduces the auxiliary operation time, and greatly improves the roadway driving efficiency.

[0007] To achieve the above object, the present invention provides a long-distance telescopic belt rack system for the post-matching of comprehensive tunneling, including: A transition connection mechanism configured to be connected to a self-advancing tail; A traction vehicle frame connected to the rear end of the transition connection mechanism; An orbital assembly connected to the rear end of the traction vehicle frame; A telescopic vehicle frame arranged on the orbital assembly and located behind the traction vehicle frame; Two braking vehicle frames arranged on the orbital assembly and located behind the telescopic vehicle frame; A traction oil cylinder connecting the two braking vehicle frames; A scissor telescopic belt bracket connecting the traction vehicle frame, the telescopic vehicle frame and the braking vehicle frame; A height-adjusting vehicle frame arranged behind the braking vehicle frame for adjusting the height of the belt.

[0008] According to the long-distance telescopic belt rack system for the post-matching of full-face tunneling in the present invention, by setting a transition connection mechanism, a traction vehicle frame, a track assembly, a braking vehicle frame, and a scissor telescopic belt bracket, the overall belt rack system can move synchronously with the tunneling progress. Multiple groups of scissor telescopic belt brackets and telescopic vehicle frames can be arranged, and a long telescopic distance can be achieved without affecting the bearing capacity. The overall belt rack system realizes the automatic extension of the full-face tunneling operation cycle length, effectively solves the safety hazards brought by manually dragging the belt in full-face tunneling and the technological method, reduces the auxiliary operation time, and greatly improves the roadway tunneling efficiency.

[0009] According to an embodiment of the present invention, the transition connection mechanism includes a pair of traction connecting rods, a pair of swing cylinders, a pressure belt roller, a rotary connection frame, and a traction swing frame. The traction connecting rods and the swing cylinders are arranged at both ends of the rotary connection frame. The pressure belt roller is arranged between the traction connecting rods. The swing cylinder is hinged to the rotary connection frame. The traction swing frame is rotatably arranged in the middle of the rotary connection frame. The rear end of the traction swing frame and the rear end of the swing cylinder are both connected to the traction vehicle frame.

[0010] According to an embodiment of the present invention, the traction vehicle frame includes two first columns, a first bottom beam, sliding shoes, a first trough-shaped idler, a first return idler, a first slider, a first chute, and a first connection block. Both ends of the first bottom beam are connected to the bottoms of the two first columns. The sliding shoes are rotatably connected to the first bottom beam. The first trough-shaped idler and the first return idler are sequentially arranged between the two first columns from top to bottom. The first connection block is fixed on the upper side of the first column. The first chute is vertically arranged on the lower side of the first column. The first slider is slidably connected to the first chute.

[0011] According to an embodiment of the present invention, the telescopic vehicle frame includes two second columns, a second bottom beam, a first wheel frame, a second trough-shaped idler, a second return idler, a second slider, a second chute, and a second connection block. Both ends of the second bottom beam are connected to the bottoms of the two second columns. The first wheel frame is rotatably connected to the second bottom beam. The second trough-shaped idler and the second return idler are sequentially arranged between the two second columns from top to bottom. The second connection block is fixed on the upper side of the second column. The second chute is vertically arranged on the lower side of the second column. The second slider is slidably connected to the second chute.

[0012] According to an embodiment of the present invention, the braking frame includes two third columns, a third bottom beam, a second wheel frame, a third trough-shaped idler, a third return idler, a braking unit, a third slider, a third chute, and a third connecting block. The two ends of the third bottom beam are connected to the bottoms of the two third columns. The second wheel frame is rotatably connected to the third bottom beam. The braking unit is arranged on the second wheel frame. The third trough-shaped idler and the third return idler are sequentially arranged between the two third columns from top to bottom. The third connecting block is fixed to the upper side of the third column. The third chute is vertically arranged on the lower side of the third column. The third slider is slidably connected to the third chute.

[0013] According to an embodiment of the present invention, the scissor telescopic belt bracket includes multiple groups of scissor arm assemblies hinged to each other, a hanging pin shaft, a hanging idler, a hanging bushing, and a traction ring. The scissor arm assembly includes a first scissor arm and a second scissor arm arranged in a cross shape. The upper end of the first scissor arm or the second scissor arm at the end of the scissor arm assembly is hinged to the first connecting block, the second connecting block, and the third connecting block. The lower end of the first scissor arm or the second scissor arm at the end of the scissor arm assembly is hinged to the first slider, the second slider, and the third slider. The hanging pin shaft is arranged at the upper hinge point of two adjacent groups of scissor arm assemblies. The hanging bushing is rotatably connected to the hanging pin shaft. The hanging idler is connected to the hanging bushing through the traction ring.

[0014] According to an embodiment of the present invention, the scissor telescopic belt bracket further includes a U-shaped connecting piece. The hanging pin shaft is provided with an annular groove at one end close to the hanging bushing. The hanging bushing is provided with a through hole adapted to the U-shaped connecting piece. The hanging bushing is sleeved on the annular groove. The U-shaped connecting piece passes through the through hole and abuts against the inner side wall of the annular groove.

[0015] According to an embodiment of the present invention, the height-adjustable frame includes a liftable column, a parallel link, a fourth trough-shaped idler, and a third return idler. The two ends of the parallel link are respectively hinged to the liftable column and the braking frame. The fourth trough-shaped idler and the third return idler are sequentially arranged between the two liftable columns from top to bottom.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present invention. Description of the Drawings

[0017] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the following detailed description of the preferred embodiments. The drawings are only for the purpose of showing the preferred embodiments and are not considered to be a limitation of the present invention. Also, throughout the drawings, the same reference numerals are used to represent the same components. Wherein: Figure 1 is a side view of a long-distance telescopic belt support system for the post-mining support of fully-mechanized tunneling according to an embodiment of the present invention.

[0018] Figure 2 is a three-dimensional structure diagram of a long-distance telescopic belt support system for the post-mining support of fully-mechanized tunneling according to an embodiment of the present invention.

[0019] Figure 3 is a top view of a transition connection mechanism according to an embodiment of the present invention.

[0020] Figure 4 is a schematic diagram of the internal structure of a rotary connection frame according to an embodiment of the present invention.

[0021] Figure 5 is a three-dimensional structure diagram of a traction vehicle frame according to an embodiment of the present invention.

[0022] Figure 6 is a three-dimensional structure diagram of a telescopic vehicle frame according to an embodiment of the present invention.

[0023] Figure 7 is a three-dimensional structure diagram of a scissor telescopic belt bracket according to an embodiment of the present invention.

[0024] Figure 8 is a schematic diagram of the hanging idler of a scissor telescopic belt bracket according to an embodiment of the present invention.

[0025] Figure 9 is a schematic diagram of a brake vehicle frame and a traction oil cylinder according to an embodiment of the present invention.

[0026] Figure 10 is a schematic diagram of the structure of a track assembly according to an embodiment of the present invention.

[0027] Figure 11 is a schematic diagram of a long-distance telescopic belt support system for the post-mining support of fully-mechanized tunneling in a telescopic state according to an embodiment of the present invention.

[0028] Explanation of reference numerals: 10 - Transition connection mechanism, 11 - Traction connecting rod, 12 - Belt pressing roller, 13 - Rotary connection frame, 14 - Traction swing frame, 15 - Swing oil cylinder, 16 - Ball hinge ring, 17 - First pin shaft, 20 - Traction vehicle frame, 21 - First column, 22 - Slide shoe, 23 - First belt pressing wheel, 24 - First trough idler, 25 - First return idler, 26 - First stop roller, 27 - First slider, 28 - First chute, 29 - First connection block, 30 - Scissor telescopic belt bracket, 31 - First scissor arm, 32 - Second scissor arm, 33 - Suspension idler, 34 - Suspension bushing, 35 - Traction ring, 36 - Suspension pin shaft, 37 - U-shaped connecting piece, 40 - Telescopic vehicle frame, 41 - Second column, 42 - Wheel frame, 43 - Second belt pressing wheel, 44 - Second trough idler, 45 - Second return idler, 46 - Second stop roller, 47 - Second slider, 48 - Second chute, 49 - Second connection block, 50 - Brake vehicle frame, 51 - Second wheel frame, 52 - Third column, 53 - Brake connecting rod, 54 - Brake block, 55 - Brake frame, 56 - Elastic member, 57 - Third connection block, 60 - Traction oil cylinder, 70 - Height-adjustable vehicle frame, 80 - Track assembly, 81 - Track, 82 - Connection ear, 83 - Second pin shaft, 200 - Tail self-shifting machine. Detailed implementation mode

[0029] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation of the present invention. On the contrary, the embodiments of the present invention include all changes, modifications and equivalents falling within the spirit and scope of the appended claims.

[0030] The following will be combined with Figures 1 to 11 , to describe the fully-mechanized tunneling post-matching long-distance telescopic belt conveyor system according to the embodiments of the present invention.

[0031] Combined with Figure 1 , Figure 2 and Figure 11 As shown in, the fully-mechanized tunneling post-matching long-distance telescopic belt conveyor system according to the embodiments of the present invention includes a transition connection mechanism 10, a traction vehicle frame 20, a track assembly 80, two brake vehicle frames 50, a traction oil cylinder 60, a scissor telescopic belt bracket 30 and a height-adjustable vehicle frame 70.

[0032] The transition connection mechanism 10 is configured to be connected to the self - shifting shearer tail 200. The traction frame 20 is connected to the rear end of the transition connection mechanism 10. The track assembly 80 is connected to the rear end of the traction frame 20. The telescopic frame 40 is arranged on the track assembly 80 and is located behind the traction frame 20. Two braking frames 50 are arranged on the track assembly 80 and are located behind the telescopic frame 40. The traction oil cylinder 60 connects the two braking frames 50. The scissor - type telescopic belt bracket 30 connects the traction frame 20, the telescopic frame 40 and the braking frame 50. The height - adjusting frame 70 is arranged behind the braking frame 50 and is used to adjust the height of the belt.

[0033] The self - shifting shearer tail 200 is a key device supporting the scraper conveyor in the fully mechanized coal mining face and is mainly used to automatically adjust the position of the conveyor tail. Assuming that one side in the direction where the self - shifting shearer tail 200 is located is the front, the rear refers to the side away from the direction where the self - shifting shearer tail 200 is located. The overall belt frame system of this embodiment moves forward along Figure 1 the left - hand direction in

[0034] The front end of the transition connection mechanism 10 realizes the connection with the self - shifting shearer tail 200 in the front. The traction frame 20 realizes the centralized traction of the scissor - type telescopic belt bracket 30 and the track assembly 80 and is the main load - bearing and working component. Belts are provided on the traction frame 20, the telescopic frame 40, the braking frame 50 and the height - adjusting frame 70. The scissor - type telescopic belt bracket 30 realizes the telescoping of the traction frame 20, the telescopic frame 40 and the braking frame 50 and the belt towing. The number of the scissor - type telescopic belt brackets 30 and the telescopic frames 40 is set according to actual needs and is not limited thereto. The two braking frames 50 are formed back - to - back and are connected by a traction oil cylinder 60 in the middle. By braking and releasing the two braking frames 50 respectively and cooperating with the action of the traction oil cylinder 60, the alternate stepping driving is realized, and the contraction of the telescopic frame 40, the braking frame 50 and the height - adjusting frame 70 is completed. The height - adjusting frame 70 can adjust the height of the belt, which is convenient for subsequent manual installation of the H - type belt frame, and the belt extension operation is labor - saving and safe. The length of the track assembly 80 is selected according to actual needs and is not limited thereto.

[0035] According to the fully - mechanized tunneling post - supporting long - distance telescopic belt frame system of the embodiment of the present invention, by setting the transition connection mechanism, the traction frame, the track assembly, the braking frame and the scissor - type telescopic belt bracket, the overall belt frame system can move synchronously with the tunneling progress. Multiple groups of scissor - type telescopic belt brackets and telescopic frames can be arranged, and a long - distance telescopic distance can be realized without affecting the bearing capacity. The overall belt frame system realizes the automatic extension of the tunneling operation cycle length, effectively solves the safety hazards brought by manual dragging of the belt in fully - mechanized tunneling and the technological method, reduces the auxiliary operation time, and greatly improves the roadway tunneling efficiency.

[0036] Combined with Figure 3 and Figure 4As shown, in some embodiments, the transition connection mechanism 10 includes a pair of traction connecting rods 11, a pair of swing cylinders 15, a pressure belt roller 12, a rotary connection frame 13, and a traction swing frame 14. The traction connecting rods 11 and the swing cylinders 15 are arranged at both ends of the rotary connection frame 13. The pressure belt roller 12 is arranged between the traction connecting rods 11. The swing cylinder 15 is hinged to the rotary connection frame 13. The traction swing frame 14 is rotatably arranged in the middle of the rotary connection frame 13. The rear end of the traction swing frame 14 and the rear end of the swing cylinder 15 are both connected to the traction vehicle frame 20.

[0037] The front end of the traction connecting rod 11 is connected to the self-advancing tail 200, and the traction connecting rod 11 plays a role in transmitting force. The number of the pressure belt rollers 12 is set according to actual needs, and there is no limitation thereto. By way of example, the number of the pressure belt rollers 12 is two, which are arranged in parallel and at different heights, so that the return belt winds reasonably and does not float. The rotary connection frame 13 supports and allows the traction swing frame 14 to rotate around its middle part to achieve angle adjustment. In one example, a spherical hinge ring 16 and a first pin shaft 17 are arranged in the middle of the rotary connection frame 13. The spherical hinge ring 16 forms a spherical pair connection with the traction swing frame 14. The first pin shaft 17 penetrates through the spherical hinge ring 16 and is fixedly installed on the rotary connection frame 13, so that the traction swing frame 14 can rotate around the first pin shaft 17, and multi-directional attitude adjustment is achieved through the spherical hinge ring 16. The swing cylinder 15 controls the angle change of the traction swing frame 14 to achieve attitude matching between the rear traction vehicle frame x0 and the self-advancing tail 200. Therefore, the transition connection mechanism 10 has the ability to adapt to the lifting, left-right swing, and roll swing of the self-advancing tail 200.

[0038] As Figure 5 As shown, in some embodiments, the traction vehicle frame 20 includes two first columns 21, a first bottom beam, sliding shoes 22, first trough-shaped idlers 24, first return idlers 25, first sliders 27, first chutes 28, and first connection blocks 29. Both ends of the first bottom beam are connected to the bottoms of the two first columns 21. The sliding shoes 22 are rotatably connected to the first bottom beam. The first trough-shaped idlers 24 and the first return idlers 25 are sequentially arranged between the two first columns 21 from top to bottom. The first connection blocks 29 are fixed on the upper sides of the first columns 21. The first chutes 28 are vertically arranged on the lower sides of the first columns 21. The first sliders 27 are slidably connected to the first chutes 28.

[0039] The first bottom beam and the two first columns 21 are connected to form a frame. Both ends of the sliding shoe 22 are connected to the swing oil cylinder 15, and the rear end of the sliding shoe 22 is connected to the track assembly 80. The sliding shoe 22 can automatically adjust its attitude according to the undulation of the coal mine floor. The first troughed idler 24 and the first return idler 25 are sequentially arranged between the two columns, bearing the working surface and the no-load surface of the belt respectively. The first connecting block 29 and the first slider 27 serve as the connection points of the scissors telescopic belt bracket 30. The internal cross-sectional shape of the first chute 28 is set according to actual needs, and there is no limitation on this. By way of example, the internal cross-section of the first chute 28 is T-shaped.

[0040] In some embodiments, rotatable first belt pressing wheels 23 are further provided above both ends of the first troughed idler 24 to guide the belt back to the normal position after the belt deviates. Similarly, rotatable first retaining rollers 26 are provided above both ends of the first return idler 25.

[0041] As Figure 6 shown, in some embodiments, the telescopic vehicle frame 40 includes two second columns 41, a second bottom beam, a first wheel frame 42, a second troughed idler 44, a second return idler 45, a second slider 47, a second chute 48 and a second connecting block 49. Both ends of the second bottom beam are connected to the bottoms of the two second columns 41. The first wheel frame 42 is rotatably connected to the second bottom beam. The second troughed idler 44 and the second return idler 45 are sequentially arranged from top to bottom between the two second columns 41. The second connecting block 49 is fixed to the upper side of the second column 41. The second chute 48 is vertically arranged on the lower side of the second column 41. The second slider 47 is slidably connected to the second chute 48.

[0042] The overall structure of the telescopic vehicle frame 40 is similar to that of the traction vehicle frame 20, except for the first wheel frame 42 at the bottom. Track wheels are installed on the first wheel frame 42. The first wheel frame 42 can achieve a certain swing range to adapt to the unevenness of the track assembly 80. The second connecting block 49 and the second slider 47 serve as the connection points of the scissors telescopic belt bracket 30. Rotatable second belt pressing wheels 43 are further provided above both ends of the second troughed idler 44 to guide the belt back to the normal position after the belt deviates. Similarly, rotatable second retaining rollers 46 are provided above both ends of the second return idler 45.

[0043] In some embodiments, as Figure 9As shown, a braking frame 50 includes two third columns 52, a third bottom beam, a second wheel frame 51, a third trough-shaped idler, a third return idler, a braking unit, a third slider, a third chute, and a third connecting block 57. Both ends of the third bottom beam are connected to the bottoms of the two third columns 52. The second wheel frame 51 is rotatably connected to the third bottom beam. The braking unit is provided on the second wheel frame 51. The third trough-shaped idler and the third return idler are sequentially arranged between the two third columns 52 from top to bottom. The third connecting block 57 is fixed to the upper side of the third column 52. The third chute is vertically provided on the lower side of the third column 52. The third slider is slidably connected to the third chute.

[0044] The overall structure of the braking frame 50 is similar to that of the telescopic frame 40, except that a braking unit is provided on the second wheel frame 51. The third connecting block 57 and the first slider serve as the connection points of the scissors telescopic belt bracket 30. The specific type of the braking unit is set according to actual needs and is not limited thereto. For example, Figure 9 As shown, the braking unit includes a braking frame 55, a braking link 53, a brake block 54, and an elastic member 56. A braking cylinder is provided in the middle of the braking frame 55 and is arranged horizontally. The push rod of the braking cylinder can extend horizontally. The two ends of the braking cylinder are connected with the braking link 53, and an elastic member 56 is sleeved on the outer wall of the braking cylinder between the braking link 53 and the braking frame 55. A brake block 54 is provided on the inner wall of the bottom end of the braking link 53. The elastic member 56 can be a spring. The working process of the braking unit is as follows: Usually, the braking cylinder is in a free state. The elastic member 56 pushes the cylinder and the push rod outwards, and through the swing of the braking link 53, drives the brake block 54 to clamp the track assembly 80, so that the braking frame realizes the braking function. When hydraulic oil enters the rod chamber of the braking cylinder, it will compress the elastic member 56 by a certain stroke. Through the action of the braking link 53, the brake block 54 is loosened from the track assembly 80, realizing the release of braking.

[0045] The two braking frames 50 are respectively an A frame and a B frame. The working sequence is that the A frame brakes, the B frame releases braking, and the traction cylinder 60 contracts to drag the B frame forward by one step; the B frame brakes, the A frame releases braking, and the traction cylinder 60 extends to push the A frame forward by one step; alternate walking until a complete contraction cycle is completed.

[0046] Combined with Figure 1 、 Figure 7 and Figure 8As shown, in some embodiments, the scissor telescopic belt bracket 30 includes multiple groups of scissor arm assemblies hinged to each other, a hanging pin shaft 36, a hanging idler 33, a hanging bushing 34, and a traction ring 35. The scissor arm assembly includes a first scissor arm 31 and a second scissor arm 32 arranged in a cross pattern. The upper end of the first scissor arm 31 or the second scissor arm 32 at the end of the scissor arm assembly is hinged to a first connection block 29, a second connection block 49, and a third connection block 57. The hinged position here is the upper hinge point. The lower end of the first scissor arm 31 or the second scissor arm 32 at the end of the scissor arm assembly is hinged to a first slider 27, a second slider 47, and a third slider. The hinged position here is the lower hinge point. The hanging pin shaft 36 is arranged at the upper hinge points of two adjacent groups of scissor arm assemblies. The hanging bushing 34 is rotatably connected to the hanging pin shaft 36. The hanging idler 33 is connected to the hanging bushing 34 through the traction ring 35. The hanging pin shaft 36 passes through the column and is connected to the hanging bushing 34 to clamp the column and achieve axial limit.

[0047] It can be seen that the belt rack system of the embodiment of the present invention realizes the fixation of the upper hinge point and the up-and-down sliding of the lower hinge point. Due to the fixation of the upper hinge point, the upper hinge points of the entire scissor telescopic belt bracket 30 maintain their positions and load-bearing capacities, remaining at a certain height unchanged during the telescopic process of the belt rack, ensuring the stable operation of the belt surface. At the same time, as the telescopic expansion occurs, the spaced hanging idlers 33 are evenly expanded to ensure uniform belt dragging without material leakage.

[0048] As shown in the figure, the scissor telescopic belt bracket 30 further includes a U-shaped connecting piece 37. The hanging pin shaft 36 is provided with an annular groove at one end close to the hanging bushing 34. The hanging bushing 34 is provided with a through hole adapted to the U-shaped connecting piece 37. The hanging bushing 34 is sleeved on the annular groove. The U-shaped connecting piece 37 passes through the through hole and abuts against the inner side wall of the annular groove to limit the axial movement of the hanging bushing 34. In one example, the U-shaped connecting piece is a metal part, which is easy to assemble and disassemble.

[0049] Combined Figure 1 and Figure 2 As shown, in some embodiments, the height-adjustable vehicle frame 70 includes a liftable column, parallel linkages, a fourth trough-shaped idler, and a third return idler. The two ends of the parallel linkages are respectively hinged to the liftable column and the braking vehicle frame 50. The fourth trough-shaped idler and the third return idler are sequentially arranged between the two liftable columns from top to bottom. The liftable column is equipped with a vertically arranged hydraulic cylinder, which drives the liftable column to lift under the action of the hydraulic cylinder. The height-adjustable vehicle frame 70 realizes the adjustment of the belt height during the telescopic process of the belt rack system and facilitates the subsequent manual installation of the H-shaped belt rack, making the extended belt operation labor-saving and safe.

[0050] As Figure 10As shown, the track assembly 80 includes a plurality of tracks 81 connected together. Connection lugs 82 are provided at both ends of the tracks 81. Adjacent tracks 81 are aligned through the connection lugs 82 and fixed by inserting a second pin shaft 83, achieving quick disassembly and connection.

[0051] It should be noted that in the description of the present invention, terms such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, in the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more.

[0052] In the present invention, unless otherwise clearly defined and limited, terms such as "installed", "connected", "joined", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection, or communicable with each other; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0053] In the present invention, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "below" and "beneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0054] In the description of the present invention, the orientation or positional relationship indicated by terms such as "left", "right", "front", "rear", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present invention.

[0055] Any process or method description shown in the flowchart or described in other ways herein can be understood as representing a module, segment, or part of code including one or more executable instructions for implementing a specific logical function or process. And the scope of the preferred embodiments of the present invention includes additional implementations, where the functions can be executed in a manner that is not in the order shown or discussed, including in a substantially simultaneous manner or in the reverse order according to the involved functions, which should be understood by those skilled in the technical field to which the embodiments of the present invention belong.

[0056] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0057] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A long-distance telescopic belt conveyor support system for comprehensive tunneling auxiliary equipment, characterized in that, Comprising: A transition connection mechanism (10), configured to be connected to the self-advancing shearer tail (200); A traction frame (20), connected to the rear end of the transition connection mechanism (10); A track assembly (80), connected to the rear end of the traction frame (20); A telescopic frame (40), arranged on the track assembly (80) and located behind the traction frame (20); Two braking frames (50), arranged on the track assembly (80) and located behind the telescopic frame (40); A traction oil cylinder (60), connecting the two braking frames (50); A scissor telescopic belt bracket (30), connecting the traction frame (20), the telescopic frame (40) and the braking frame (50); A height adjustment frame (70), arranged behind the braking frame (50) for adjusting the height of the belt.

2. The long-distance telescopic belt rack system for post-matching in comprehensive tunneling according to claim 1, wherein The transition connection mechanism (10) includes a pair of traction connecting rods (11), a pair of swing oil cylinders (15), a belt pressing roller (12), a rotary connection frame (13) and a traction swing frame (14). The traction connecting rods (11) and the swing oil cylinders (15) are arranged at both ends of the rotary connection frame (13). The belt pressing roller (12) is arranged between the traction connecting rods (11). The swing oil cylinder (1) is hinged to the rotary connection frame (13). The traction swing frame (14) is rotatably arranged in the middle of the rotary connection frame (13). The rear end of the traction swing frame (14) and the rear end of the swing oil cylinder (15) are both connected to the traction frame (20).

3. The long-distance telescopic belt conveyor support system for fully-mechanized heading face auxiliary equipment according to claim 1, wherein The traction frame (20) includes two first columns (21), a first bottom beam, a sliding shoe (22), a first trough-shaped idler (24), a first return idler (25), a first slider (27), a first chute (28) and a first connection block (29). The two ends of the first bottom beam are connected to the bottoms of the two first columns (21). The sliding shoe (22) is rotatably connected to the first bottom beam. The first trough-shaped idler (24) and the first return idler (25) are sequentially arranged between the two first columns (21) from top to bottom. The first connection block (29) is fixed to the upper side of the first column (21). The first chute (28) is vertically arranged on the lower side of the first column (21). The first slider (27) is slidably connected to the first chute (28).

4. The fully-mechanized tunneling post-matching long-distance telescopic belt conveyor support system according to claim 3, characterized in that, The telescopic frame (40) includes two second columns (41), a second bottom beam, a first wheel frame (42), a second trough idler (44), a second return idler (45), a second slider (47), a second chute (48), and a second connecting block (49). Both ends of the second bottom beam are connected to the bottoms of the two second columns (41). The first wheel frame (42) is rotatably connected to the second bottom beam. The second trough idler (44) and the second return idler (45) are sequentially arranged between the two second columns (41) from top to bottom. The second connecting block (49) is fixed to the upper side of the second column (41). The second chute (48) is vertically arranged on the lower side of the second column (41). The second slider (47) is slidably connected to the second chute (48).

5. The fully-mechanized tunneling post-matching long-distance telescopic belt conveyor support system according to claim 4, wherein, The braking frame (50) includes two third columns (52), a third bottom beam, a second wheel frame (51), a third trough idler, a third return idler, a braking unit, a third slider, a third chute, and a third connecting block (57). Both ends of the third bottom beam are connected to the bottoms of the two third columns (52). The second wheel frame (51) is rotatably connected to the third bottom beam. The braking unit is arranged on the second wheel frame (51). The third trough idler and the third return idler are sequentially arranged between the two third columns (52) from top to bottom. The third connecting block (57) is fixed to the upper side of the third column (52). The third chute is vertically arranged on the lower side of the third column (52). The third slider is slidably connected to the third chute.

6. The fully-mechanized tunneling rear matching long-distance telescopic belt conveyor system according to claim 5, characterized in that, The scissor telescopic belt bracket (30) includes multiple groups of scissor arm assemblies hinged to each other, a hanging pin shaft (36), a hanging idler (33), a hanging bushing (34), and a traction ring (35). The scissor arm assembly includes a first scissor arm (31) and a second scissor arm (32) arranged in a cross pattern. The upper end of the first scissor arm (31) or the second scissor arm (32) at the end of the scissor arm assembly is hinged to the first connecting block (29), the second connecting block (49), and the third connecting block (57). The lower end of the first scissor arm (31) or the second scissor arm (32) at the end of the scissor arm assembly is hinged to the first slider (27), the second slider (47), and the third slider. The hanging pin shaft (36) is arranged at the upper hinge point of adjacent groups of scissor arm assemblies. The hanging bushing (34) is rotatably connected to the hanging pin shaft (36). The hanging idler (33) is connected to the hanging bushing (34) through the traction ring (35).

7. The long-distance telescopic belt conveyor support system for comprehensive tunneling auxiliary equipment according to claim 6, wherein The scissors telescopic belt bracket (30) further includes a U-shaped connecting piece (37). The hanging pin shaft (36) is provided with an annular groove at one end close to the hanging bushing (34). The hanging bushing (34) is provided with a through hole adapted to the U-shaped connecting piece (37). The hanging bushing (34) is sleeved on the annular groove, and the U-shaped connecting piece (37) passes through the through hole and abuts against the inner side wall of the annular groove.

8. The long-distance telescopic belt conveyor support system for comprehensive tunneling back-up according to claim 5, characterized in that, The height-adjustable vehicle frame (70) includes a liftable column, parallel linkages, a fourth trough-shaped idler, and a third return idler. The two ends of the parallel linkages are respectively hinged to the liftable column and the braking vehicle frame (50). The fourth trough-shaped idler and the third return idler are sequentially arranged between the two liftable columns from top to bottom.

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