Circulating moving device and moving method for transporting gate-type forepoling of crossheading

Abstract

The circulating moving device comprises a cross beam and a walking transfer trolley located below the cross beam, telescopic parts are arranged at the two ends of the cross beam, two reciprocating driving mechanisms are arranged in the middle of the cross beam, and the telescopic ends of the reciprocating driving mechanisms are connected with the corresponding telescopic parts; telescopic supporting columns are arranged on the lower sides of the two telescopic parts; the walking transfer trolley is arranged on the top of the reversed loader. The rail is arranged in the space above the reversed loader, the walking transfer trolley is arranged, the forepoling is rapidly positioned and transferred, the device can adapt to the complex roadway environment, top plate disturbance is reduced, the manual labor intensity is reduced, the operation supporting efficiency is improved, and production safety is guaranteed.

Description

Technical Field

[0001] The present invention belongs to the technical field of advance support for underground coal mine tunnels, and particularly relates to a cyclic moving device for transporting a chute gantry-type advance support, and also relates to a cyclic moving method for transporting a chute gantry-type advance support. Background Art

[0002] Coal mine roadway roof management and fully mechanized mining face advancement complement and constrain each other. Face chute transfer machines are bulky and occupy significant space in the transport chute. Ensuring optimal support distance and strength in the transport chute has become a key research focus in the field of roadway advance support. Currently, advance supports in the advance section of the transport chute typically utilize single hydraulic struts coupled with articulated steel beams and self-propelled stepping supports. Some coal mines employ alternating mobile portal advance supports and unitized supports.

[0003] Single hydraulic props are relatively lightweight and do not require repeated support of the roof during transfer, thus ensuring the integrity of the roof. However, their support strength is relatively low, making them unsuitable for roadways with high roof pressure. Furthermore, the transfer process is cumbersome, labor-intensive, and inefficient, so they are gradually being phased out.

[0004] The self-moving step-by-step support is currently widely used. It has sufficient support strength and can be moved by workers operating the handle. However, the problem is that the movement must be completed by raising and lowering the columns of each set of supports. This will repeatedly load and release pressure on the roof, causing the roof to break and sink, affecting the integrity and stability of the roof. When the pressure is large, the support may become stuck, causing the advance support to be unable to operate normally, making tunnel maintenance more difficult. Therefore, the step-by-step advance support is often used in tunnels with better roof conditions.

[0005] The alternating movable gantry advance support and unit support both have sufficient support strength. When moving the support, the support is transported by a support transport vehicle or a monorail crane to avoid repeated support of the top plate. Although it reduces the labor intensity of workers and improves the efficiency of moving the support to a certain extent, the transportation process is complicated and time-consuming, and has high requirements for the tunnel space and bottom plate, and its applicability is limited.

[0006] Therefore, with the development of intelligent, unmanned and less-manned coal production, there is an urgent need for an advance support device with sufficient support strength and no repeated support of the roof, so as to improve the advance support efficiency of the transport chute and enhance the safety of tunnel support.

[0007] Prior art systems, such as those for coal mine working face transport chute systems, include a transport trolley and multiple portal supports. Each portal support includes a support top beam, a first telescopic rod, and a second telescopic rod. The portal support is moved forward by removing the last support and rotating it laterally to a predetermined angle. The transport trolley then transports it forward through the other portals to the front end, whereupon the first and second telescopic rods are extended, allowing the support to once again support the working face transport chute. This process continues in this manner, enabling the portal support to be cyclically supported without repeated movement.

[0008] Another example is the integrated advance support system for coal mine working face transportation, which realizes the transportation of advance supports in the upper space of the transfer machine by the transport trolley by setting groove rails and transfer trolleys on the cover plate above the transfer machine. The transport trolley has the functions of lifting and steering, which allows the support to rotate to a certain angle until it can pass under the front advance support, realizing a series of actions of "positioning-coupling-adjusting-transporting-lifting-returning".

[0009] While these technologies each have their own advantages, they lack modularity, have cumbersome operational procedures, and have limited trolley adjustment capabilities, making them difficult to fully adapt to the complex and changing underground environment. Future research and development should focus on improving the adaptability and automated movement of supports, streamlining operational procedures and reducing reliance on roadway conditions while ensuring support strength. Summary of the Invention

[0010] The first purpose of the present invention is to provide a circulating moving device for transporting chute gantry advance supports, which uses the space above the transfer machine to set up tracks and is equipped with a walking transfer vehicle to achieve rapid positioning and transfer of advance supports. It can adapt to complex tunnel environments, reduce roof disturbances, reduce manual labor intensity, improve operation support efficiency, and ensure production safety.

[0011] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a circulating moving device for transporting chute gantry advance supports, including a crossbeam and a walking transfer vehicle located under the crossbeam, both ends of the crossbeam are provided with telescopic parts, and the middle part of the crossbeam is provided with two reciprocating drive mechanisms, the telescopic ends of the reciprocating drive mechanisms are connected to the corresponding telescopic parts, and the lower sides of the two telescopic parts are provided with retractable support columns; the walking transfer vehicle is arranged on the top of the transfer machine.

[0012] The technical solution of the present invention also has the following characteristics: The reciprocating drive mechanism is a hydraulic cylinder.

[0013] The support columns are hydraulic columns.

[0014] A base is provided at the bottom of the hydraulic column.

[0015] A pair of guide buckles are provided on the lower side of the crossbeam.

[0016] A track plate is provided on the top of the transfer machine, and a track is provided on the track plate.

[0017] Both sides of the track plate are fixed to the transfer machine through support plates and bolts.

[0018] The second purpose of the present invention is to provide a method for the circular movement of a gantry-type advance support for transporting a chute, which utilizes the space above the transfer machine to set up tracks and is equipped with a walking transfer vehicle to achieve rapid positioning and transfer of the advance support. It can adapt to complex tunnel environments, reduce roof disturbances, reduce manual labor intensity, improve operational support efficiency, and ensure production safety.

[0019] In order to achieve the above object, the technical solution adopted by the present invention is: specifically implemented according to the following steps: Step 1: Use the worm gear winch to pull the walking transfer vehicle to the position directly below the tail frame of the leading support; Step 2: The column of the tail frame of the advance bracket slowly shrinks, and the walking transfer vehicle immediately supports and lifts the crossbeam, which then slowly shrinks, allowing the entire advance bracket to smoothly pass under the front advance bracket; Step 3: Operate the worm winch to move the traveling transfer vehicle to the front of the first frame and maintain a certain distance; Step 4: The advance support beam is unfolded and the column is raised, so that the beam contacts the top plate and is in a supporting working state; Step 5: Operate the worm gear winch to move the walking transfer vehicle to the tail and repeat the above actions to realize the transformation of the tail frame into the head frame, and one cycle is completed.

[0020] The beneficial effects of the present invention are: (1) The present invention is a cyclic moving device for transporting a gantry-type advance support in a chute, which utilizes the space above the transfer machine to design an advance support transfer device, thereby realizing effective utilization of the tunnel space; (2) The present invention provides a cyclic moving device for transporting a gantry-type advance support in a chute, which is highly safe. During the movement of the tail frame to the head frame, the intermediate advance support always remains in a working state, ensuring support safety. (3) The present invention provides a circulating moving device for transporting a chute gate-type advance support, which adopts an emulsion hydraulic control for the advance support, and the worm gear winch is driven by an electric motor or a hydraulic motor. The system is simple and easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings: Figure 1It is a cross-sectional schematic diagram of a circulating moving device of a transport chute without repeated support of a top plate advance support of the present invention.

[0022] Figure 2 It is a schematic diagram of the tailstock retraction during the cyclic movement of the leading support of the top plate of a transport chute without repeated support of the present invention. Figure 3 This is a schematic diagram of a transport chute without repeated support of the top plate and the leading support in the cyclic movement of the tail frame becoming the head frame. In the figure, 1. Gantry advance support; 2. Travel transfer vehicle; 3. Track; 4. Track plate; 5. Support plate; 6. High-strength bolts; 7. Transfer machine; 8. Worm gear winch; 9. Traction device; 101. Crossbeam; 102. Telescopic part, 103. Support column, 104. Base, 105. Reciprocating drive mechanism. DETAILED DESCRIPTION

[0023] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0024] In the description of the present invention, if there is a description of first and second, it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0025] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0026] Example 1 like Figure 1 As shown, the present invention is a cyclic moving device for transporting a gantry-type advance support in a chute, comprising a crossbeam 101 and a traveling transfer vehicle 2 located below the crossbeam 101. Both ends of the crossbeam 101 are provided with telescopic portions 102. Two reciprocating drive mechanisms 105 are provided in the middle of the crossbeam 101. The telescopic ends of the reciprocating drive mechanisms 105 are connected to the corresponding telescopic portions 102. The lower sides of the two telescopic portions 102 are both provided with retractable support columns 103. The traveling transfer vehicle 2 is arranged on top of the transfer machine 7. The reciprocating drive mechanism 105 is preferably a hydraulic cylinder. By controlling the extension and retraction of the hydraulic cylinder, the telescopic portion 102 of the crossbeam 101 can be extended or retracted, thereby realizing the telescopic function of the crossbeam 101. The support columns 103 are preferably hydraulic columns.

[0027] like Figure 2and Figure 3 As shown, the present invention is a cyclic moving device for a portal-type advance support for transporting a chute, and its working principle is as follows: to provide advance support for the top plate of the advance section of the transport chute. The columns 103 and the crossbeam 101 of the advance support 1 have a telescopic function. When the frame needs to be moved, the worm gear winch 8 is used to drive the walking transfer vehicle 2 to move to the top of the tail frame, lift the retracted tail frame and move it under the middle advance support 1 to the front end of the transfer machine 7, the tail frame becomes the first frame, the columns 103 are raised, and the crossbeams are unfolded to support the top plate of the advance section of the chute, completing a cyclic process without repeated support of the top plate. As the transfer machine moves forward, the walking transfer vehicle 2 continues to transport the advance support 1, making the tail frame become the first frame. During the transportation process, the middle part of the support always maintains a supporting state, thereby completing the advance support work of the cyclic movement without repeated support of the top plate.

[0028] Example 2 like Figure 1 As shown, similar to Example 1, Example 2 of the present invention is a cyclic moving device for transporting a gantry-type advance support in a chute, which also includes a crossbeam 101 and a walking transfer vehicle 2 located below the crossbeam 101. Both ends of the crossbeam 101 are provided with telescopic portions 102. Two reciprocating drive mechanisms 105 are provided in the middle of the crossbeam 101. The telescopic ends of the reciprocating drive mechanisms 105 are connected to the corresponding telescopic portions 102. The lower sides of the two telescopic portions 102 are both provided with retractable support columns 103. The walking transfer vehicle 2 is arranged on top of the transfer machine 7. The reciprocating drive mechanism 105 is preferably a hydraulic cylinder. By controlling the extension and retraction of the hydraulic cylinder, the telescopic portion 102 of the crossbeam 101 can be extended or retracted, thereby realizing the telescopic function of the crossbeam 101. The support columns 103 are preferably hydraulic columns.

[0029] Different from Example 1, in Example 2 of the present invention, a circulating moving device for transporting a chute gate-type advance support is provided with a base 104 at the bottom of the hydraulic column to facilitate support.

[0030] Example 3 like Figure 1As shown, similar to Example 2, Example 3 of the present invention is a cyclic moving device for transporting a gantry-type advance support in a chute, which also includes a crossbeam 101 and a walking transfer vehicle 2 located below the crossbeam 101. Telescopic parts 102 are provided at both ends of the crossbeam 101. Two reciprocating drive mechanisms 105 are provided in the middle of the crossbeam 101. The telescopic ends of the reciprocating drive mechanisms 105 are connected to the corresponding telescopic parts 102. The lower sides of the two telescopic parts 102 are provided with retractable support columns 103; the walking transfer vehicle 2 is arranged on the top of the transfer machine 7. The reciprocating drive mechanism 105 is preferably a hydraulic cylinder. By controlling the extension and contraction of the hydraulic cylinder, the telescopic part 102 of the crossbeam 101 can be extended or retracted to achieve the function of extending and retracting the crossbeam 101. The support column 103 is preferably a hydraulic column. A base 104 is provided at the bottom of the hydraulic column to facilitate support.

[0031] Unlike Example 2, in Example 3 of the present invention, a pair of guide buckles 106 are provided on the lower side of the crossbeam 101. The guide buckles 6 ensure that the crossbeam 101 is accurately and stably docked with the traveling transfer vehicle 2 when moving.

[0032] Example 4 like Figure 1 As shown, similar to Example 3, Example 4 of the present invention is a cyclically movable device for transporting a gantry-type advance support in a chute. It also includes a crossbeam 101 and a traveling transfer vehicle 2 positioned below the crossbeam 101. Each end of the crossbeam 101 is provided with a telescopic portion 102. Two reciprocating drive mechanisms 105 are disposed in the middle of the crossbeam 101. The telescopic ends of the reciprocating drive mechanisms 105 are connected to the corresponding telescopic portions 102. Retractable support columns 103 are disposed below each telescopic portion 102. The traveling transfer vehicle 2 is positioned atop the transfer machine 7. The reciprocating drive mechanisms 105 are preferably hydraulic cylinders. By controlling the hydraulic cylinder's extension and retraction, the telescopic portion 102 of the crossbeam 101 can be extended or retracted, thereby achieving the function of extending and retracting the crossbeam 101. The support columns 103 are preferably hydraulic columns. A base 104 is disposed at the bottom of the hydraulic columns to facilitate support. A pair of guide buckles 106 are disposed on the underside of the crossbeam 101. The guide buckle 6 ensures that the crossbeam 101 is accurately and stably docked with the traveling transfer vehicle 2 when moving.

[0033] Unlike Example 3, in Example 4, a cyclic moving device for transporting a chute-type advance support according to the present invention is provided with a track plate 4 on top of the transfer vehicle 7, on which tracks 3 are provided. The wheels of the traveling transfer vehicle 2 are clamped in the tracks 3, allowing it to move along a certain track without deviation.

[0034] Example 5 like Figure 1As shown, similar to Example 4, Example 5 of the present invention is a cyclically movable device for transporting a gantry-type advance support in a chute. It also includes a crossbeam 101 and a traveling transfer vehicle 2 positioned below the crossbeam 101. Both ends of the crossbeam 101 are provided with telescopic portions 102. Two reciprocating drive mechanisms 105 are disposed in the middle of the crossbeam 101. The telescopic ends of the reciprocating drive mechanisms 105 are connected to the corresponding telescopic portions 102. Retractable support columns 103 are disposed below each telescopic portion 102. The traveling transfer vehicle 2 is positioned atop the transfer machine 7. The reciprocating drive mechanisms 105 are preferably hydraulic cylinders. By controlling the hydraulic cylinder's extension and retraction, the telescopic portion 102 of the crossbeam 101 can be extended or retracted, thereby achieving the function of extending and retracting the crossbeam 101. The support columns 103 are preferably hydraulic columns. A base 104 is disposed at the bottom of the hydraulic columns to facilitate support. A pair of guide buckles 106 are disposed on the underside of the crossbeam 101. The guide buckle 6 ensures that the crossbeam 101 is accurately and stably docked with the traveling transfer vehicle 2 when moving.

[0035] Unlike Example 3, in Example 4, a cyclic moving device for transporting a chute-type advance support according to the present invention is provided with a track plate 4 on top of the transfer vehicle 7, on which tracks 3 are provided. The wheels of the traveling transfer vehicle 2 are clamped in the tracks 3, allowing it to move along a certain track without deviation.

[0036] Different from the fourth embodiment, in the fifth embodiment of the present invention, the two sides of the track plate 4 are fixed to the transfer machine 7 by the support plate 5 and the bolt 6. The installation is more convenient.

[0037] Example 6 like Figures 1 to 3 As shown, the method for cyclically moving the portal-type advance support for transporting the chute is characterized in that it is implemented specifically according to the following steps: Step 1: Use the worm winch 8 to pull the walking transfer vehicle 2 to the position directly below the tailstock of the leading support 1; Step 2: The column 103 of the tail frame of the leading support 1 (i.e., the telescopic portion 102) is slowly retracted, and the traveling transfer vehicle 2 then presses against and lifts the crossbeam 101, and the crossbeam 101 is then slowly retracted, so that the entire leading support 1 can smoothly pass under the leading support 1 in front; Step 3: Operate the worm winch 8 to move the traveling transfer vehicle 2 to the front of the first frame and maintain a certain distance; Step 4: The advance support beam 101 is unfolded and the column 103 is raised, so that the beam 101 contacts the top plate and is in a supporting working state; Step 5: operate the worm gear winch 8 to move the traveling transfer vehicle 2 to the tail and repeat the above-mentioned action to realize the transformation of the tail frame into the head frame, and a cycle is completed.

[0038] The foregoing description shows and describes several preferred embodiments of the invention. However, as previously stated, it should be understood that the invention is not limited to the form disclosed herein and should not be construed as excluding other embodiments. Rather, the invention is applicable to various other combinations, modifications, and environments and is capable of modification within the scope of the inventive concept described herein, through the teachings above, or through techniques or knowledge in the relevant art. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the invention are intended to be within the scope of the appended claims.

Claims

1. A cyclic moving device for transporting chute gate-type advance supports, characterized in that: The invention comprises a crossbeam (101) and a walking transfer vehicle (2) located below the crossbeam (101), wherein both ends of the crossbeam (101) are provided with telescopic parts (102), and the middle part of the crossbeam (101) is provided with two reciprocating drive mechanisms (105), and the telescopic ends of the reciprocating drive mechanisms (105) are connected to the corresponding telescopic parts (102), and the lower sides of the two telescopic parts (102) are provided with retractable support columns (103); the walking transfer vehicle (2) is arranged on the top of the transfer machine (7).

2. The cyclic moving device for transporting chute gantry-type advance supports according to claim 1 is characterized in that: The reciprocating drive mechanism (105) is a hydraulic cylinder.

3. The cyclic moving device for transporting chute gantry-type advance supports according to claim 2 is characterized in that: The support column (103) is a hydraulic column.

4. The cyclic moving device for transporting chute gantry-type advance supports according to claim 3 is characterized in that: A base (104) is provided at the bottom of the hydraulic column.

5. The cyclic moving device for transporting chute gantry-type advance supports according to claim 3 is characterized in that: A pair of guide buckles (106) are provided on the lower side of the crossbeam (101).

6. The cyclic moving device for transporting chute gantry-type advance supports according to claim 5 is characterized in that: A track plate (4) is provided on the top of the transfer machine (7), and a track (3) is provided on the track plate (4).

7. The cyclic moving device for transporting chute gantry-type advance supports according to claim 6 is characterized in that: Both sides of the track plate (4) are fixed to the transfer machine (7) via support plates (5) and bolts (6).

8. A method for circulating movement of a gantry-type advance support for transporting a chute, characterized in that: Please follow the steps below to implement: Step 1: Use the worm winch (8) to pull the walking transfer vehicle (2) to a position directly below the tail frame of the leading support (1); Step 2, the column of the tail frame of the advance bracket (1) is slowly retracted, and the walking transfer vehicle (2) then resists and lifts the crossbeam (101), and the crossbeam (101) is then slowly retracted, so that the entire advance bracket (1) can smoothly pass under the front advance bracket (1); Step 3, operate the worm winch (8) to move the walking transfer vehicle (2) to the front of the first frame and maintain a certain distance; Step 4, the advance support beam (101) is unfolded, and the column (103) is raised, so that the beam (101) contacts the top plate and is in a supporting working state; Step 5, operate the worm winch (8) to move the walking transfer vehicle (2) to the tail and repeat the above action to achieve the tail frame to head frame transformation, and one cycle is completed.

Images