Retracting and loading device and method for hydraulic support

Abstract

The invention discloses a withdrawing and loading device and method for a hydraulic support, and the withdrawing and loading device comprises a rotating platform which is used for rotating the hydraulic support arranged on the rotating platform, so that the hydraulic support can be conveniently separated from the rotating platform from the rear end of the rotating platform; the transfer platform is used for receiving the hydraulic support from the rotating platform and then transferring the hydraulic support to a trolley located at the rear end of the transfer platform; the traction system is used for pulling the hydraulic support to advance to the upper side of the rotating platform from the roadway through the left end or the right end of the rotating platform; the pulling device is further used for pulling the hydraulic support to move from the rotating platform to the transfer platform and continuously move to the trolley, and then withdrawing and loading of the hydraulic support are completed; compared with the prior art, the retracement method has the advantages that the retracement speed is increased by four times, and the retracement operation is simple, convenient, reliable and safe.

Description

Technical Field

[0001] The invention belongs to the field of hydraulic support withdrawal, and in particular relates to a hydraulic support withdrawal loading device and a hydraulic support withdrawal loading method. Background Art

[0002] As an important supporting equipment for fully mechanized mining working faces, mining hydraulic supports have the advantages of high supporting strength and large supporting area. However, due to their large size, heavy weight, and inability to be disassembled on site, the withdrawal of hydraulic supports is the key and difficulty of the withdrawal of the entire working face. In particular, the forward movement of the shield seriously restricts the withdrawal speed of the working face. The forward movement of the traditional coal mining working face support completely relies on the winch to pull and move. The winch is frequently used and the labor intensity of the workers is high, which not only wastes time, but also increases the risk of the winch wire rope breaking and injuring people. Therefore, it is of great significance to study the withdrawal equipment and withdrawal process of the hydraulic support of the fully mechanized mining working face to speed up the withdrawal speed of the working face.

[0003] The traditional hydraulic support withdrawal method mostly adopts the double shielding frame method. This withdrawal method mainly uses the cooperation of various devices to withdraw the hydraulic support. During the withdrawal, the shielding frame is used to support the roof of the tunnel, and then the winch is used to withdraw it in the predetermined direction. After the shielding frame is arranged, the pulley device needs to be fixed at the front end of the frame, and then the steel wire rope is used for traction, and the hydraulic support is withdrawn to the predetermined position by the winch. During the withdrawal, shielding frames need to be set on both sides of the frame to effectively avoid collisions between the supports. During the withdrawal, the support steering needs to be adjusted manually. The support strength can be further improved by setting dense wood piles and point columns. After the steering is completed, the withdrawal device needs to be fixed again and the frame needs to be hoisted to the predetermined position by the winch, and then the loading and transportation are arranged. The traditional hydraulic support withdrawal process has the disadvantages of low withdrawal efficiency, high process risk factor, and complicated process. Summary of the invention

[0004] The purpose of the present invention is to provide a hydraulic support retraction and loading device and a retraction and loading method to solve the problems of low retraction efficiency, high process risk factor and complicated process in the retraction and loading process of the hydraulic support in the comprehensive mining working face.

[0005] The present invention adopts the following technical solution: a retracting and loading device for a hydraulic support, comprising:

[0006] The rotating platform is arranged near the hydraulic support, and its front end is fixed on the roadway ground; its left end or right end is used for the hydraulic support to pass and move to the upper side of the rotating platform; the rotating platform is used to rotate the hydraulic support placed thereon, so as to facilitate the hydraulic support to detach from the rotating platform from the rear end of the rotating platform;

[0007] The transfer platform is located at the rear end of the rotating platform, and its bottom is placed on the roadway ground; it is used to receive the hydraulic support from the rotating platform and then transfer the hydraulic support to the trolley located at the rear end of the transfer platform.

[0008] The pulling system is used to pull the hydraulic support to travel from the roadway through the left end or the right end of the rotating platform to the upper side of the rotating platform; it is also used to pull the hydraulic support to travel from the rotating platform to the transfer platform and then continue to travel to the trolley, thereby completing the withdrawal and loading of the hydraulic support.

[0009] Furthermore, the pulling system includes:

[0010] The first pulling system is used to pull the hydraulic support to travel from the roadway through the left end or the right end of the rotating platform to the upper side of the rotating platform.

[0011] The second pulling system is used to pull the hydraulic support to travel from the upper side of the rotating platform to the upper side of the transfer platform and then continue to travel to the trolley.

[0012] Furthermore, the pulling system also includes:

[0013] The third pulling system is used to cooperate with the second pulling system to fine-tune the direction of the hydraulic support when pulling the hydraulic support to travel from the roadway through the end of the rotating platform to the upper side of the rotating platform, so that the hydraulic support can travel to the upper side of the rotating platform in a straight line distance.

[0014] Furthermore, the first pulling system includes:

[0015] The first oil cylinder is fixed on the upper side of the rotating platform; its movable end is arranged towards the rear end of the rotating platform, and a first sprocket is fixedly connected to its movable end.

[0016] The first chain, one end of which is fixed, and the other end of which bypasses the first sprocket and is hung at the bottom of the hydraulic support, is used to pull the hydraulic support to travel from the roadway ground over the end of the rotating platform to the upper side of the rotating platform by the power of the first oil cylinder.

[0017] Furthermore, the third pulling system includes:

[0018] The third oil cylinder is fixed on the upper side of the rotating platform; its movable end is arranged towards the rear end of the rotating platform, and a third sprocket is fixedly connected to its movable end.

[0019] The third chain, one end of which is fixed, and the other end of which bypasses the third sprocket and is hung at the middle and upper part of the hydraulic support, is used to cooperate with the first pulling system to fine-tune the direction of the hydraulic support by the power of the third oil cylinder so that the hydraulic support can travel to the upper side of the rotating platform in a straight line distance.

[0020] Furthermore, the second pulling system includes:

[0021] The second oil cylinder is fixed on the upper side of the transfer platform; its movable end is arranged towards the rear end of the transfer platform, and a second sprocket is fixedly connected to its movable end.

[0022] The second chain, one end of which is fixed, and the other end of which bypasses the second sprocket and is hung on the bottom of the hydraulic support that has been placed on the rotating platform and has been rotated to a position convenient for traveling, for pulling the hydraulic support from the upper side of the rotating platform to the upper side of the transfer platform by the power of the second oil cylinder, and then continuing to travel onto the trolley.

[0023] Furthermore, there are two sets of the second pulling systems, which are respectively located at the left and right edge positions of the transfer platform.

[0024] The transfer platform includes:

[0025] The transfer bottom plate is located on the roadway ground, and its front end is fixedly connected to the rotating platform.

[0026] The transfer lifting plate is located on the upper side of the transfer bottom plate.

[0027] Two lifting shells are respectively fixedly connected to the left and right ends of the transfer lifting plate, and second oil cylinders are respectively installed inside them.

[0028] Two double-rod oil cylinders are both horizontally arranged and fixed on the upper side of the transfer bottom plate and under the lifting shells along the roadway direction; the two ends of the double rods are respectively slidably connected to the front end and the rear end of the corresponding lifting shell. The double-rod oil cylinder is used to force the lifting shell to lift upward when extending outwards, so that the hydraulic support located on the upper side of the transfer lifting plate is lifted upward and level with the trolley located at the rear end of the transfer platform, thereby facilitating the second oil cylinder to smoothly pull the hydraulic support into the trolley.

[0029] Furthermore, the rotating platform includes:

[0030] The rotating shell;

[0031] The fourth oil cylinder is fixed inside the rotating shell, and its orientation is parallel to the roadway direction.

[0032] The rack is fixed to the movable end of the fourth oil cylinder; it is used to move back and forth along the roadway direction under the drive of the fourth oil cylinder.

[0033] The gear meshes with the rack and is used to rotate under the drive of the rack.

[0034] The rotating plate is located above the gear and is fixedly connected to the gear, and the hydraulic support is supported thereon, so that the hydraulic support rotates under the drive of the gear.

[0035] A method for withdrawing and loading a hydraulic support includes:

[0036] Pull the hydraulic support located on the side wall of the roadway through the pulling system, so that the hydraulic support moves in a direction perpendicular to the roadway, and travels to the upper side of the rotating platform through the end of the rotating platform;

[0037] Rotate the hydraulic support through the rotating platform, so that the hydraulic support rotates to a direction convenient for traveling along the roadway direction;

[0038] Pull the hydraulic support from the rotating platform to the upper side of the transfer platform through the pulling system, and then travel from the end of the transfer platform to the trolley to complete the loading.

[0039] A method for withdrawing and loading a hydraulic support, including:

[0040] Pull the hydraulic support located on the side wall of the roadway through the pulling system, so that the hydraulic support moves in a direction perpendicular to the roadway, and travels to the upper side of the rotating platform through the end of the rotating platform;

[0041] Rotate the hydraulic support through the rotating platform, so that the hydraulic support rotates to a direction convenient for traveling along the roadway direction;

[0042] Pull the hydraulic support from the rotating platform to the upper side of the transfer platform through the pulling system, and then travel from the end of the transfer platform to the trolley to complete the loading;

[0043] Wherein, when the horizontal height of the transfer lifting plate where the hydraulic support is located is not flush with the horizontal height of the trolley, lift the transfer lifting plate carrying the hydraulic support through the double-rod cylinder, so that the transfer lifting plate is flush with the trolley, and then it is convenient to pull the hydraulic support through the pulling system and force the hydraulic support to travel from the end of the transfer lifting plate to the trolley.

[0044] The beneficial effects of the present invention are:

[0045] By setting the rotating platform in the present invention, the hydraulic support located on the rotating platform is rotated, and then rotated to a direction convenient for traveling along the roadway trend, which is convenient for subsequent withdrawal and loading;

[0046] The transfer platform of the present invention can lift the hydraulic support, so that the transfer lifting plate of the transfer platform is flush with the trolley located at the rear end of the transfer platform, which is convenient for loading the hydraulic support into the trolley;

[0047] By setting the pulling system in the present invention, it can cooperate with each other. First, pull the hydraulic support along the direction perpendicular to the roadway trend, then rotate on the rotating platform, and finally pull the hydraulic support along the direction parallel to the roadway trend, so that the hydraulic support is loaded into the trolley;

[0048] Compared with the prior art, the withdrawal speed of the withdrawal method of the present invention is increased by 4 times, and the withdrawal operation is simple, reliable and safe. Description of the Drawings

[0049] Figure 1 is a structural schematic diagram of the present invention;

[0050] Figure 2 is a side sectional view of the present invention;

[0051] Figure 3 is a top view of the rotating platform of the present invention;

[0052] Figure 4 is a side view of the present invention.

[0053] Wherein: 10, rotating platform; 102, fourth oil cylinder; 103, rack; 104, gear; 105, rotating plate; 20, transfer platform; 201, transfer bottom plate; 202, transfer lifting plate; 203, lifting housing; 204, double-rod oil cylinder;

[0054] 301, first oil cylinder; 302, first sprocket; 401, second oil cylinder; 402, second sprocket; 501, third oil cylinder; 502, third sprocket; 60, tongue plate. Specific embodiments

[0055] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0056] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", 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 therefore should not be construed as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more. The "direction" in the present invention is described based on the Figure 1 direction when the present invention is in the

[0057] The present invention discloses a device for withdrawing and loading a hydraulic support, as Figure 1 , 2 , shown in 4, comprising: a rotating platform 10, a transfer platform 20, and a pulling system.

[0058] Such as Figure 3As shown, the rotary platform 10 is arranged close to the hydraulic support, and the front end of the rotary platform 10 is fixed on the roadway ground; one end (left or right) of the rotary platform 10 is for the hydraulic support to travel parallel to the upper side of the rotary platform 10; the rotary platform 10 is used to rotate the hydraulic support placed thereon, so as to facilitate the hydraulic support to disengage from the rear end of the rotary platform 10.

[0059] The transfer platform 20 is located at the rear end of the rotary platform 10, and its bottom is placed on the roadway ground; the transfer platform 20 is used to receive the hydraulic support from the rotary platform 10, and then transfer the hydraulic support to the trolley located at the rear end of the transfer platform 20.

[0060] The pulling system is used to pull the hydraulic support to travel from the roadway through one end (left or right) of the rotary platform 10 to the upper side of the rotary platform 10; the pulling system is also used to pull the hydraulic support to travel from the rotary platform 10 to the upper side of the transfer platform 20 and continue to travel to the trolley, so as to complete the withdrawal and loading of the hydraulic support.

[0061] The pulling system includes: a first pulling system and a second pulling system; the first pulling system is used to pull the hydraulic support to travel from the roadway through one end (left or right) of the rotary platform 10 to the upper side of the rotary platform 10; the second pulling system is used to pull the hydraulic support from the upper side of the rotary platform 10 to the upper side of the transfer platform 20 and then continue to travel to the trolley.

[0062] The pulling system further includes: a third pulling system. The third pulling system is used to cooperate with the second pulling system to fine-tune the direction of the hydraulic support when pulling the hydraulic support to travel from the roadway through the end of the rotary platform 10 to the upper side of the rotary platform 10, so as to facilitate the hydraulic support to travel to the upper side of the rotary platform 10 in a straight line distance.

[0063] The first pulling system includes: a first oil cylinder 301 and a first chain.

[0064] The first oil cylinder 301 is fixed on the upper side of the rotary platform 10; the movable end of the first oil cylinder 301 is arranged towards the rear end of the rotary platform 10, and a first sprocket 302 is fixedly connected to the movable end of the first oil cylinder 301.

[0065] One end of the first chain is fixed, and the other end of the first chain bypasses the first sprocket 302 and is hung at the bottom of the hydraulic support. The first chain is used to pull the hydraulic support from the roadway ground over the end of the rotary platform 10 to the upper side of the rotary platform 10 by the power of the first oil cylinder 301.

[0066] The third pulling system includes: a third oil cylinder 501 and a third chain.

[0067] The third oil cylinder 501 is fixed to the upper side of the rotating platform 10; the movable end of the third oil cylinder 501 is arranged towards the rear end of the rotating platform 10, and a third sprocket 502 is fixedly connected to the movable end of the third oil cylinder 501.

[0068] One end of the third chain is fixed, and the other end of the third chain bypasses the third sprocket 502 and is hung on the upper middle part of the hydraulic support. The third chain is used to cooperate with the first pulling system to finely adjust the direction of the hydraulic support through the power of the third oil cylinder 501 so that the hydraulic support can travel in a straight line distance to the upper side of the rotating platform 10.

[0069] The second pulling system includes: a second oil cylinder 401 and a second chain.

[0070] The second oil cylinder 401 is fixed to the upper side of the transfer platform 20; the movable end of the second oil cylinder 401 is arranged towards the rear end of the transfer platform 20, and a second sprocket 402 is fixedly connected to the movable end of the second oil cylinder 401.

[0071] One end of the second chain is fixed, and the other end of the second chain bypasses the second sprocket 402 and is hung on the bottom of the hydraulic support that has been placed on the rotating platform 10 and has been rotated to be convenient for traveling. The second chain is used to pull the hydraulic support from the upper side of the rotating platform 10 to the upper side of the transfer platform 20 through the power of the second oil cylinder 401, and then continue to travel to the trolley.

[0072] Two sets of the second pulling systems are provided and are respectively located at the left and right edge positions of the transfer platform 20.

[0073] The transfer platform 20 includes: a transfer bottom plate 201, a transfer lifting plate 202, two lifting shells 203, and two double-rod oil cylinders 204.

[0074] The transfer bottom plate 201 is located on the roadway ground, and the front end of the transfer bottom plate 201 is fixedly connected to the rotating platform 10.

[0075] The transfer lifting plate 202 is located above the transfer bottom plate 201.

[0076] The two lifting shells 203 are respectively fixedly connected to the left and right ends of the transfer lifting plate 202, and the second oil cylinders 401 are respectively installed in the two lifting shells 203.

[0077] The two double-rod cylinders 204 are both horizontally arranged and fixed on the upper side of the transfer floor 201 along the roadway direction, and on the lower side of the lifting housing 203; both ends of the double rods of the two double-rod cylinders 204 are slidably connected to the front end and the rear end of the corresponding lifting housing 203 respectively. The double-rod cylinder 204 is used to force the lifting housing 203 to lift upward when extending outwards, so that the hydraulic support located on the upper side of the transfer lifting plate 202 is lifted upward and level with the trolley located at the rear end of the transfer platform 20, thus facilitating the second cylinder 401 to pull the hydraulic support into the trolley smoothly.

[0078] The rotating platform 10 includes: a rotating housing, a fourth cylinder 102, a rack 103, a gear 104, and a rotating plate 105.

[0079] The fourth cylinder 102 is fixed inside the rotating housing, and the direction of the fourth cylinder 102 is parallel to the roadway direction.

[0080] The rack 103 is fixed to the movable end of the fourth cylinder 102; the rack 103 is used to move back and forth along the roadway direction under the drive of the fourth cylinder 102.

[0081] The gear 104 meshes with the rack 103, and the gear 104 is used to rotate under the drive of the rack 103.

[0082] The rotating plate 105 is located above the gear 104 and is fixedly connected to the gear 104. The rotating plate 105 is used to support the hydraulic support, so that the hydraulic support rotates under the drive of the gear 104.

[0083] Both the fourth cylinder 102 and the rack 103 are symmetrically arranged in two.

[0084] A tongue plate 60 is rotatably connected to the right end or the left end of the rotating platform 10. One end of the tongue plate 60 away from the rotating platform 10 is thinned and is used to extend into the lower side of the hydraulic support to facilitate the hydraulic support to travel onto the rotating platform 10 through the tongue plate 60.

[0085] The present invention also discloses a method for withdrawing and loading a hydraulic support, including:

[0086] Pull the hydraulic support located on the side wall of the roadway through the pulling system, so that the hydraulic support moves in a direction perpendicular to the roadway, and travels to the upper side of the rotating platform 10 through the end of the rotating platform 10;

[0087] Rotate the hydraulic support through the rotating platform 10 so that the hydraulic support rotates to a direction convenient for traveling along the roadway direction;

[0088] Pull the hydraulic support through the pulling system to travel from the rotating platform 10 to the upper side of the transfer platform 20, and then travel to the trolley at the end of the transfer platform 20 to complete the loading.

[0089] The present invention also discloses a method for withdrawing and loading a hydraulic support, comprising:

[0090] The hydraulic support located on the side wall of the tunnel is pulled by the pulling system, so that the hydraulic support moves in a direction perpendicular to the tunnel and moves to the upper side of the rotating platform 10 through the end of the rotating platform 10;

[0091] The hydraulic support is rotated by rotating the platform 10 so that the hydraulic support is rotated to a direction convenient for traveling along the roadway;

[0092] The hydraulic support is pulled from the rotating platform 10 to the upper side of the transfer platform 20 by the pulling system, and then moves from the end of the transfer platform 20 to the trolley to complete the loading;

[0093] Among them, when the horizontal height of the transfer lifting plate 202 where the hydraulic support is located is not flush with the horizontal height of the trolley, the transfer lifting plate 202 carrying the hydraulic support is lifted by the double-rod cylinder 204, so that the transfer lifting plate 202 is flush with the trolley, and then it is convenient to pull the hydraulic support through the pulling system and force the hydraulic support to move from the end of the transfer lifting plate 202 to the trolley.

[0094] As for the rotation angle of the hydraulic support, in general, the direction of the running wheels of the hydraulic support is perpendicular to the direction of the tunnel. Therefore, when the hydraulic support moves to the upper side of the rotating platform 10, the hydraulic support is rotated 90 degrees by the rotating platform 10, so that the direction of the running wheels of the hydraulic support is parallel to the direction of the tunnel. At this time, the hydraulic support is pulled by the pulling system, so that the hydraulic support moves from the upper side of the rotating platform 10 to the upper side of the transfer platform 20, and then continues to move to the trolley, completing the withdrawal and loading of the hydraulic support.

[0095] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A retractable loading device for a hydraulic support, characterized in that: include: A rotating platform (10) is arranged close to the hydraulic support, and its front end is fixed on the tunnel ground; its left end or right end is used for the hydraulic support to pass through and move to the upper side of the rotating platform (10); the rotating platform (10) is used to rotate the hydraulic support placed thereon, thereby facilitating the hydraulic support to detach from the rotating platform (10) from the rear end of the rotating platform (10); The transfer platform (20) is located at the rear end of the rotating platform (10) and its bottom is placed on the roadway ground; it is used to receive the hydraulic support from the rotating platform (10) and then transfer the hydraulic support to the trolley located at the rear end of the transfer platform (20); The pulling system is used to pull the hydraulic support from the tunnel through the left end or the right end of the rotating platform (10) to the upper side of the rotating platform (10); it is also used to pull the hydraulic support from the rotating platform (10) to the transfer platform (20) and continue to the trolley, thereby completing the withdrawal and loading of the hydraulic support.

2. The retracting and loading device of a hydraulic support according to claim 1, characterized in that: The pulling system comprises: A first pulling system is used to pull the hydraulic support from the tunnel through the left end or the right end of the rotating platform (10) to the upper side of the rotating platform (10); The second pulling system is used to pull the hydraulic support from the upper side of the rotating platform (10) to the upper side of the transfer platform (20), and then continue to move onto the trolley.

3. The retracting and loading device of a hydraulic support according to claim 2, characterized in that: The pulling system also includes: The third pulling system is used to cooperate with the second pulling system to fine-tune the direction of the hydraulic support when pulling the hydraulic support from the tunnel through the end of the rotating platform (10) to the upper side of the rotating platform (10) so as to facilitate the hydraulic support to move to the upper side of the rotating platform (10) in a straight line.

4. The retracting and loading device of a hydraulic support according to claim 2, characterized in that: The first pulling system comprises: The first oil cylinder (301) is fixed on the upper side of the rotating platform (10); its movable end is arranged toward the rear end of the rotating platform (10), and a first sprocket (302) is fixedly connected to its movable end; The first chain has one end fixed and the other end passed around the first sprocket (302) and then hung on the bottom of the hydraulic support, and is used to pull the hydraulic support from the tunnel ground over the end of the rotating platform (10) to the upper side of the rotating platform (10) through the power of the first oil cylinder (301).

5. The retracting and loading device of a hydraulic support according to claim 3, characterized in that: The third pulling system comprises: The third oil cylinder (501) is fixed on the upper side of the rotating platform (10); its movable end is arranged toward the rear end of the rotating platform (10), and a third sprocket (502) is fixedly connected to its movable end; The third chain has one end fixed and the other end passing around the third sprocket (502) and then hung on the middle and upper part of the hydraulic support, and is used to cooperate with the first pulling system to fine-tune the direction of the hydraulic support through the power of the third oil cylinder (501) so that the hydraulic support can move to the upper side of the rotating platform (10) in a straight line.

6. The retracting and loading device of a hydraulic support according to claim 2, characterized in that: The second pulling system comprises: A second oil cylinder (401) is fixed on the upper side of the transfer platform (20); its movable end is arranged toward the rear end of the transfer platform (20), and a second sprocket (402) is fixedly connected to its movable end; The second chain has one end fixed and the other end passing around the second sprocket (402) and then hung on the bottom of the hydraulic support which has been placed on the rotating platform (10) and rotated to facilitate movement, and is used to pull the hydraulic support from the upper side of the rotating platform (10) to the upper side of the transfer platform (20) and then continue to move onto the trolley through the power of the second oil cylinder (401).

7. The retracting and loading device of a hydraulic support according to claim 6, characterized in that: The second pulling system is provided in two sets and is respectively located at the left and right edges of the transfer platform (20); The transfer platform (20) comprises: The transfer bottom plate (201) is located on the tunnel floor, and its front end is fixedly connected to the rotating platform (10); A transfer lifting plate (202), located on the upper side of the transfer bottom plate (201); Two lifting shells (203) are respectively fixedly connected to the left and right ends of the transfer lifting plate (202), and second oil cylinders (401) are respectively installed therein; Two double-rod oil cylinders (204) are both horizontally arranged and fixed on the upper side of the transfer bottom plate (201) and the lower side of the lifting shell (203) along the direction of the laneway; the two ends of the double rods are respectively slidably connected to the front and rear ends of the corresponding lifting shell (203), and the double-rod oil cylinder (204) is used to force the lifting shell (203) to lift upward when extending outward, thereby causing the hydraulic support located on the upper side of the transfer lifting plate (202) to be lifted upward and flush with the trolley located at the rear end of the transfer platform (20), thereby facilitating the second oil cylinder (401) to pull the hydraulic support into the trolley smoothly.

8. The retracting and loading device of a hydraulic support according to claim 1, characterized in that: The rotating platform (10) comprises: Rotating shell; A fourth oil cylinder (102) is fixed in the rotating shell and has a direction parallel to the direction of the lane; A rack (103) is fixed to the movable end of the fourth oil cylinder (102) and is used to move forward and backward along the lane under the drive of the fourth oil cylinder (102); A gear (104) meshing with the rack (103) and configured to rotate under the drive of the rack (103); The rotating plate (105) is located on the upper side of the gear (104) and is fixedly connected to the gear (104). The rotating plate (105) is used to support the hydraulic support, so that the hydraulic support rotates under the drive of the gear (104).

9. A method for withdrawing and loading a hydraulic support according to any one of claims 1 to 8, characterized in that: include: The hydraulic support located on the side wall of the tunnel is pulled by a pulling system, so that the hydraulic support moves in a direction perpendicular to the tunnel and moves to the upper side of the rotating platform (10) through the end of the rotating platform (10); The hydraulic support is rotated by a rotating platform (10) so that the hydraulic support is rotated to a direction that is convenient for moving along the direction of the lane; The hydraulic support is pulled by the pulling system from the rotating platform (10) to the upper side of the transfer platform (20), and then moves from the end of the transfer platform (20) to the trolley to complete the loading.

10. The method for withdrawing and loading a hydraulic support according to claim 7, characterized in that: include: The hydraulic support located on the side wall of the tunnel is pulled by a pulling system, so that the hydraulic support moves in a direction perpendicular to the tunnel and moves to the upper side of the rotating platform (10) through the end of the rotating platform (10); The hydraulic support is rotated by a rotating platform (10) so that the hydraulic support is rotated to a direction that is convenient for moving along the direction of the lane; The hydraulic support is pulled by the pulling system from the rotating platform (10) to the upper side of the transfer platform (20), and then moves from the end of the transfer platform (20) to the trolley to complete the loading; When the horizontal height of the transfer lifting plate (202) where the hydraulic support is located is not flush with the horizontal height of the trolley, the transfer lifting plate (202) carrying the hydraulic support is lifted by the double-rod cylinder (204) so ​​that the transfer lifting plate (202) is flush with the trolley, thereby facilitating the pulling system to pull the hydraulic support and force the hydraulic support to move from the end of the transfer lifting plate (202) to the trolley.

Images