A direction-adjusting and pushing device for hydraulic supports of a fully-mechanized coal mining face in a coal mine underground

Abstract

The utility model discloses a kind of direction-adjusting pusher for coal mine underground fully mechanized working face hydraulic support, the device includes slope device, connecting crossbeam, rotary device, pusher, pusher is set in the left and right sides of rotary device, and the tail end of three is installed in the side of connecting crossbeam, and the other side of connecting crossbeam is installed with slope device;Hydraulic support is transported by support carrier through slope device and connecting crossbeam and is driven onto pusher and places hydraulic support on rotary device, after rotary device rotates 90 °, pusher inserts limit block, and pushes the hydraulic support after direction-adjusting and moves forward, retracts pusher oil cylinder, then uses unturnable cardboard to push the hydraulic support to position, retracts pusher tongue plate, lifts hydraulic support, completes hydraulic support installation.The utility model can solve the direction-adjusting and installation problem of support carrier hydraulic support transportation of coal mine underground fully mechanized working face, with direction-adjusting, pusher, self-withdrawal function, significantly improve installation efficiency and operation safety.

Description

Technical Field

[0001] This utility model relates to the field of underground equipment technology in coal mines, specifically, it is a directional pushing device for hydraulic supports in fully mechanized coal mining faces. Background Technology

[0002] When hydraulic supports are transported and installed in fully mechanized coal mining faces using support transport vehicles, the vehicles move them along the cutting direction to the installation area. However, due to the extremely confined space, it is difficult for the support transport vehicles to turn on the spot. Currently, the common method is to forcibly drag the supports with a winch or move them with a shovel. This approach is inefficient, wastes manpower and resources, and has poor safety: the winch wire rope is prone to breakage during long-distance dragging operations, causing personal injury accidents and seriously threatening the safety of operators. Utility Model Content

[0003] The purpose of this invention is to solve the problem of difficulty in moving, adjusting, and installing large and heavy hydraulic supports, and to provide a device for adjusting and pushing hydraulic supports in underground fully mechanized mining faces of coal mines. This device aims to improve the safety and human-machine efficiency in the operation of installing hydraulic supports in underground working faces.

[0004] The objective of this utility model is achieved through the following technical solution:

[0005] A reversing and pushing device for hydraulic supports in fully mechanized coal mining faces is characterized in that: the reversing and pushing device includes a ramp device, a connecting beam, a slewing device, and a pushing device; the pushing device is located on the left and right sides of the slewing device, and the tail ends of both the slewing device and the pushing device are installed on one side of the connecting beam, while the ramp device is installed on the other side of the connecting beam. The ramp device and the connecting beam serve as auxiliary mechanisms to facilitate the transport vehicle carrying the hydraulic support to reach above the pushing device. The slewing device is used to receive the hydraulic support and rotate 90°. The pushing device is used to push the hydraulic support after reversing 90° to the installation position in stages, and the pushing device and the hydraulic support can cooperate to allow the reversing and pushing device to retreat in the opposite direction. In use, the support transport vehicle carrying the hydraulic support drives onto the pushing device via the ramp and connecting beam. The support transport vehicle places the hydraulic support on the slewing device and retracts it. After the slewing device rotates the hydraulic support 90°, the pushing device with a detachable limit block pushes the hydraulic support, which has been adjusted 90°, to the installation position in stages. Then, the pushing device and the hydraulic support work together to make the adjusting pushing device move backward one step, leaving space for the installation of the next hydraulic support.

[0006] The pushing device is equipped with a detachable limiting block, a self-righting plate, and a pushing tongue plate. The detachable limiting block, the self-righting plate, and the pushing tongue plate are arranged sequentially from the tail end to the front end of the pushing device. The limiting block is used to limit the first-stage pushing position. The self-righting plate achieves the second-stage pushing by gravity reset. The pushing tongue plate is used to receive the hydraulic support and buffer the impact of landing. The pushing tongue plate retracts to allow the hydraulic support to land in place. Alternatively, the limiting block is used to limit the first-stage pushing position. The self-righting plate achieves the second-stage pushing by gravity reset. The pushing tongue plate is used to receive the hydraulic support and buffer the impact of landing. The pushing tongue plate retracts to allow the hydraulic support to land and then extends again to perform the third-stage pushing to allow the hydraulic support to land in place.

[0007] The upper plane of the rotary platform on the rotary device is higher than the highest point of the upper plane of its transition platform, and the lowest point of the upper plane of the transition platform on the rotary device is higher than the highest point of the upper plane of the pushing tongue plate on the pushing device.

[0008] The pushing device includes a pushing base, a pushing cylinder, a self-righting seat, and a pushing tongue plate. The tail end of the pushing base is hinged to a crossbeam via a hinge structure. A laser positioning device is arranged in the middle of the inner cavity of the pushing base to guide the positioning bracket transport vehicle to place the hydraulic bracket. A pushing cylinder is arranged in the rear of the inner cavity of the pushing base. The piston rod of the pushing cylinder is hinged to the front end of the self-righting seat. The self-righting seat is provided with multiple locking holes. Limiting blocks are inserted into different locking holes to limit the pushing stroke. A self-righting locking plate is provided on the top of the self-righting seat, and a pushing tongue plate is hinged to the front end of the top of the self-righting seat. The self-righting seat and the pushing tongue plate move forward or backward within the area defined by the pushing base.

[0009] When the moving device is working, it uses limit blocks inserted into different locking holes to move the hydraulic support after it has been adjusted 90° once or multiple times. After reaching the first stage of advancement, the moving cylinder is retracted. Then, it uses the self-righting plate to move the hydraulic support once or multiple times to reach the second stage of advancement, or directly moves the hydraulic support into place and then retracts the moving cylinder. The moving tongue plate is used to receive the hydraulic support and buffer the impact of landing. The retraction of the moving tongue plate allows the hydraulic support to land, and the moving tongue plate extends again to push the hydraulic support into place. The moving tongue plate can also be used only to adjust the landing position of the hydraulic support. When the hydraulic support reaches the installation position, the moving tongue plate presses against the hydraulic support, so that the hydraulic support reacts to the moving tongue plate, causing the entire adjustment and transfer device to retreat one step, leaving installation space for the next hydraulic support. The hydraulic support that has been positioned is then raised to complete the installation.

[0010] The tumbler plate is a positioning plate that rotates around an axis. When the hydraulic support moves forward from above it, the tumbler plate is pressed down. When it passes in the opposite direction, the hydraulic support is locked by the tumbler plate and pushed forward by the tumbler.

[0011] The upper part of the pushing cylinder is covered by a load-bearing plate, which is installed on the pushing base for the transport vehicle carrying the hydraulic support to move.

[0012] The rotary device includes a rotary base, a rotary cylinder, and a rotary platform. The rotary platform is located in the middle and rear part of the rotary base and is mounted on the top of the rotary support. The rotary support installed in the inner cavity of the rotary base meshes with the rack on the rotary cylinder on the side. The rotary cylinder drives the rack to move forward or backward by extending and retracting, thereby driving the rotary support and the rotary platform on it to rotate.

[0013] A transition platform is provided on the front side of the rotary platform. This transition platform serves as an intermediate structure to support the hydraulic support that is pushed forward from the rotary platform by the pushing device. The upper surface of the transition platform is lower than the upper surface of the rotary platform to prevent the hydraulic support located on the transition platform from retracting onto the rotary platform.

[0014] The ramp device, connecting beam, rotating device, and pushing device are all modular structures. One side of the connecting beam is hinged to a pair of ramp devices via a hinge structure, and the other side is hinged to the rotating device and the pushing devices located on the left and right sides of the rotating device, respectively. The pushing devices are fixedly mounted on both sides of the rotating device via pin hinges.

[0015] The connecting beam includes a central control box and transition sections on the left and right sides of the control box. The control box and the transition sections on both sides are integrally formed.

[0016] The rotary device is hinged to the transition portions of the crossbeams on both sides of the control box via hinged structures. The pushing device is hinged and fixed to the transition portion of the crossbeam on the same side via hinged structures.

[0017] The hinge structure is a quick-release pin with a self-locking function, and the pin is provided with an anti-disengagement spring in the axial direction.

[0018] The directional and pushing device provided by this utility model is specifically designed to solve the problem of directional adjustment and installation of hydraulic supports in fully mechanized mining faces in coal mines. In particular, it provides an installation equipment with strong adaptability, heavy load capacity, and integrated relocation and directional adjustment functions for the entire process of transporting hydraulic supports from the support transport vehicle to the working face, to moving and adjusting their direction, and then pushing them to the installation position. The device has directional adjustment, pushing, and self-removal functions, and has good adaptability, durability, and stability, which can significantly improve the efficiency and operational safety of directional adjustment and installation of hydraulic supports. Attached Figure Description

[0019] Appendix Figure 1 A schematic diagram of the structure of a hydraulic support adjustment and pushing device for a fully mechanized coal mining face provided by this utility model;

[0020] Appendix Figure 2 A schematic diagram of the combined structure of the ramp device and the connecting beam provided by this utility model;

[0021] Appendix Figure 3 A schematic diagram of the structure of the rotary device provided by this utility model;

[0022] Appendix Figure 4 A schematic diagram of the pushing device provided by this utility model;

[0023] Appendix Figure 5 This is a schematic diagram illustrating the state of the hydraulic support when it is placed on the rotary platform, as shown in an embodiment of the present invention.

[0024] Appendix Figure 6 This is a schematic diagram illustrating the state of the hydraulic support when the direction is adjusted to the correct position, as shown in an embodiment of this utility model.

[0025] Appendix Figure 7 This is a schematic diagram illustrating the state of the hydraulic support being pushed onto the transition platform, as shown in an embodiment of the present invention.

[0026] Appendix Figure 8 This is one of the schematic diagrams showing the pushing state of the hydraulic support on the transition platform, as an embodiment of the present invention;

[0027] Appendix Figure 9 This is the second schematic diagram illustrating the pushing state of the hydraulic support on the transition platform, as shown in the embodiment of this utility model.

[0028] Appendix Figure 10 This is a schematic diagram illustrating the state of the hydraulic support being pushed onto the pusher tongue plate, as shown in an embodiment of the present invention.

[0029] Appendix Figure 11 This is a schematic diagram illustrating the state of the hydraulic support when it is pushed to the installation position, as shown in an embodiment of the present invention.

[0030] Wherein: 1—slope device; 2—connecting crossbeam; 20—control box; 21—crossbeam transition section; 3—rotation device; 30—rotation base; 31—rotation cylinder; 32—rotation platform; 33—transition platform; 4—pushing device; 40—pushing base; 41—pushing cylinder; 42—tumbler seat; 43—pushing tongue plate; 44—load-bearing plate; 45—tumbler clamping plate; 46—clamping hole; 47—limiting block; 48—laser positioning instrument; 5—hinged structure. Detailed Implementation

[0031] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that the present invention will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore their detailed description will be omitted.

[0032] The terms “a,” “one,” “the,” and “the” are used to indicate the existence of one or more elements / components / etc.; the terms “including” and “having” are used to indicate an open-ended meaning of inclusion and that other elements / components / etc. may exist in addition to the listed elements / components / etc.

[0033] like Figures 1-4 As shown: This utility model provides a directional pushing device for hydraulic supports in fully mechanized coal mining faces. The device mainly includes a modular inclined ramp device 1, a connecting beam 2, a rotating device 3, a pushing device 4 (located on both sides of the rotating device), multiple sets of hinged structures 5, and supporting hydraulic systems and accessories. The inclined ramp device 1 and the connecting beam 2 are located at the rear of the entire directional pushing device. The inclined ramp device 1 has a small-slope ramp. The connecting beam 2 includes a central control box 20 and beam transition sections 21 located on its left and right sides; all three are integrally formed. The hydraulic support transport vehicle can sequentially drive onto the moving device 4 via the ramp device 1 and the transition platform 21, and stop at the position indicated by the laser positioning device 48. Then, the hydraulic support to be installed is directly unloaded onto the rotary platform 32. The rotary device 3, located at the front of the entire adjusting and moving device, mainly consists of a rotary base 30, a rotary cylinder 31, and a rotary platform 32. The rotary platform 32 can rotate under the drive of the rotary cylinder 31, thereby turning the hydraulic support placed on it 90° to the left. Right-facing (installation required direction); Two symmetrically arranged pushing devices 4 are located on both sides of the rotary device 3. They are mainly composed of a pushing base 40, a pushing cylinder 41, a tumbler seat 42, a pushing tongue plate 43, a tumbler clamping plate 45, and a clamping hole 46. The pushing device 4 pushes the tumbler seat 42 to move through the extension and retraction of the pushing cylinder 41. The limiting block 47, the unidirectional tilting tumbler clamping plate 45, and the pushing tongue plate 43 respectively clamp and push the hydraulic support forward, so as to push the hydraulic support to the installation position in stages. Example

[0034] like Figures 1-4As shown, a directional shifting device for hydraulic supports in fully mechanized coal mining faces is disclosed. This device comprises a modular ramp device 1, a connecting beam 2, a rotating device 3, and a shifting device 4. The shifting device 4 is positioned on the left and right sides of the rotating device 3, with the tail ends of both the rotating device 3 and the shifting device 4 mounted on one side of the connecting beam 2. The ramp device 1 is mounted on the other side of the connecting beam 2. The specific connection relationships are as follows: one side of the connecting beam 2 is hinged to a pair of ramp devices 1 via a hinge structure 5, and the other side is hinged to the rotating device 3 and the shifting devices 4 located on the left and right sides of the rotating device 3 via hinge structures 5. The shifting devices 4 are fixedly mounted on both sides of the rotating device 3 via pins. The connecting beam 2 includes a central control box 20 and transition sections 21 on its left and right sides, all three being integrally formed. The rotating device 3 is hinged to the transition platforms 21 on both sides of the control box 20 via hinge structures 5. The same-side moving device 4 is hinged to the corresponding crossbeam transition part 21 via the hinge structure 5. In use, the transport vehicle carrying the hydraulic support drives onto the moving device 4 via the ramp device 1 and connecting crossbeam 2, placing the hydraulic support on the rotating device 3. The rotating device 3 rotates 90° to change the hydraulic support's left-right orientation. Subsequently, the moving device 4 pushes the hydraulic support to the installation position in stages. In this embodiment, the rotating device 3 adopts a high-strength rotating support structure design, capable of bearing hydraulic supports of ≥100 tons, and is compatible with most mainstream tonnage hydraulic supports on the market.

[0035] Furthermore, in order to prevent the hydraulic support from retracting when the pushing cylinder 41 of the pushing device 4 retracts, the following height relationship is set: the upper surface of the rotating platform 32 on the rotating device 3 is higher than the highest point of the upper surface of its transition platform 33; the lowest point of the upper surface of the transition platform 33 on the rotating device 3 is higher than the highest point of the upper surface of the pushing tongue plate 43 on the pushing device 4.

[0036] like Figure 1 , Figure 3 As shown, the rotary device 3 includes a rotary base 30, a rotary cylinder 31, and a rotary platform 32. The rotary platform 32 is located on top of the rotary support at the rear middle part of the rotary base 30. The rotary support installed in the inner cavity of the rotary base 30 meshes with the rack on the rotary cylinder 31. The rotary cylinder 31 drives the rack to move back and forth by telescoping, thereby driving the rotary support and the rotary platform 32 on it to rotate, realizing the rotational adjustment of the hydraulic support placed on the rotary platform 32. In addition, a transition platform 33 is provided on the front side of the rotary platform 32. As an intermediate structure, the transition platform 33 supports the hydraulic support pushed forward from the rotary platform 32. The upper surface of the transition platform 33 is lower than the upper surface of the rotary platform 32, which can prevent the hydraulic support on it from retracting to the rotary platform 32.

[0037] like Figure 1 , Figure 4As shown, the pushing device 4 is arranged sequentially from back to front along the pushing direction, including a detachable limiting block 47, a self-righting plate 45, and a pushing tongue plate 43, which can abut against the hydraulic support at different pushing stages. Specifically, the pushing device 4 includes a pushing base 40, a pushing cylinder 41, a self-righting seat 42, and a pushing tongue plate 43. The tail end of the pushing base 40 is hinged to the connecting beam 2 via a hinge structure 5. The pushing cylinder 41 is arranged in the rear part of the inner cavity of the pushing base 40, and the front end of its piston rod is hinged to the self-righting seat 42. The self-righting seat 42 has a portion extending into the rear part of the inner cavity of the pushing base 40, which is parallel to the pushing cylinder 41 and has multiple locking holes 46 for inserting the limiting block 47; the top of the self-righting seat 42 is provided with a self-righting plate 45; and the front end of the top of the self-righting seat 42 is hinged to the pushing tongue plate 43. The roly-poly base 42 and the pusher tongue 43 move forward or backward within the area defined by the pusher base 40. A load-bearing plate 44 is covered above the pusher cylinder 41 and is mounted on the pusher base 40 for the transport vehicle to move.

[0038] like Figures 5-11 The following describes the entire usage process of a hydraulic support adjustment and pushing device for a fully mechanized coal mining face provided in the above embodiment:

[0039] (1) For example Figure 5 As shown, modular components of a hydraulic support adjustment and pushing device for underground fully mechanized coal mining faces are transported to the designated position of the hydraulic support to be installed and assembled. The support transport vehicle transports the hydraulic support onto the rotary platform 32 to the position indicated by the laser positioning instrument 48 and then drives out. The rotary cylinder 31 extends, driving the rotary platform 32 to rotate 90°, thus adjusting the hydraulic support to the left or right orientation.

[0040] (2) Subsequently, as Figure 6 , Figure 7 As shown, the limiting blocks 47 are inserted into the locking holes 46 of the roly-poly seat 42 on the double-sided pushing device 4, the pushing cylinders 41 on the left and right sides of the pushing device 4 extend, the limiting blocks 47 lock them, and push them forward one stroke (1800mm) to the transition platform 33, and then retract the pushing cylinders 41.

[0041] (3) Then, as follows Figure 8 , Figure 9 , Figure 10 As shown, adjust the position of the limiting block 47 forward as needed, push the hydraulic support until the tumbler plate 45 can be exposed, and then retract the pushing cylinder 41. After the tumbler plate 45 pops up, continue to extend the pushing cylinder 41 to push the hydraulic support forward so that it falls onto the pushing tongue plates 43 on both sides of the pushing device 4;

[0042] (4) Then as Figure 11As shown, the double-sided push cylinders 41 retract, pulling the push tongue plate 43 out from under the hydraulic support, and the hydraulic support lands smoothly in place. During the retraction of the push cylinders 41, the transition platform 33 prevents the hydraulic support from moving backward.

[0043] If the hydraulic support is in the installation position after the pusher tongue 43 is pulled out, that is, after the hydraulic support is adjusted and pushed into place, the pusher cylinder 41 can be used to push the pusher tongue 43 to abut against the hydraulic support, and push the hydraulic support adjustment and pushing device to move backward, making room for the installation of the next hydraulic support.

[0044] If the hydraulic support is not in the installation position after the pusher tongue 43 is pulled out, the pusher cylinder 41 drives the pusher tongue 43 to push the hydraulic support in three stages to bring the hydraulic support to the installation position. After the hydraulic support is adjusted and pushed into place, the pusher cylinder 41 pushes the pusher tongue 43 to abut against the hydraulic support, pushing the hydraulic support adjustment and pushing device to retract, making room for the installation of the next hydraulic support.

[0045] It should be noted that, Figures 5-11 The edge line in the figure represents the edge line of the working platform of the hydraulic support adjustment and pushing device for underground fully mechanized mining faces in coal mines, as provided by this utility model.

[0046] The present invention provides a hydraulic support adjustment and pushing device for underground fully mechanized mining faces in coal mines. The device adopts a staged pushing method, and the process includes: pushing the limit block 47 once or multiple times, pushing the tumbler plate 45 once or multiple times, and pushing the tongue plate 43 once (the specific number of pushes can be flexibly adjusted according to the hydraulic support structure and installation distance), so as to gradually push the hydraulic support to the installation position.

[0047] The present invention provides a directional and pushing device for hydraulic supports in fully mechanized coal mining faces, which guarantees safety, convenience, applicability, and durability, as detailed below:

[0048] (1) High safety: effectively avoids the risks of wire rope breakage caused by traditional winch dragging, ensuring the safety of operators;

[0049] (2) Convenient and efficient: It integrates the functions of adjustment and pushing, which significantly reduces the labor intensity of workers and greatly improves the installation efficiency;

[0050] (3) Strong adaptability: The device itself has the characteristics of low center of gravity and low height, and can adapt to different types of hydraulic supports;

[0051] (4) Durable and reliable: The structure is reasonably designed and the key components are sturdy and durable, ensuring long-term stable operation.

[0052] In this embodiment of the invention, the term "multiple" refers to two or more, unless otherwise explicitly defined. The terms "install," "connect," and "fix" should be interpreted broadly. For example, "connect" can mean a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention based on the specific circumstances.

[0053] In the description of the embodiments of this utility model, it should be understood that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or unit referred to must have a specific direction or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0054] In this specification, the terms "an embodiment," "a preferred embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0055] The above embodiments are only for illustrating the technical concept of this utility model and should not be construed as limiting the scope of protection of this utility model. Any modifications made to the technical solution based on the technical concept proposed by this utility model shall fall within the scope of protection of this utility model. Technologies not covered by this utility model can be implemented by existing technologies.

Claims

1. A directional pushing device for hydraulic supports in fully mechanized coal mining faces, characterized in that: The repositioning and moving device includes a ramp device (1), a connecting beam (2), a slewing device (3), and a moving device (4). The moving device (4) is located on the left and right sides of the slewing device (3), and the tail ends of both the slewing device (3) and the moving device (4) are installed on one side of the connecting beam (2). The ramp device (1) is installed on the other side of the connecting beam (2). The ramp device (1) and the connecting beam (2) serve as auxiliary mechanisms to facilitate the transport of the hydraulic support support trolley to the top of the moving device (4). The slewing device (3) is used to receive the hydraulic support and turn it 90°. The moving device (4) is used to move the hydraulic support after it has been repositioned 90° in stages. The moving device (4) and the hydraulic support can cooperate to make the reversing moving device move backward. The support transport vehicle carrying the hydraulic support drives onto the moving device (4) via the ramp device (1) and the connecting beam (2). The support transport vehicle places the hydraulic support on the rotating device (3) and moves backward. After the rotating device (3) rotates the hydraulic support 90°, the moving device (4) with the detachable limit block (47) moves the hydraulic support after being reversed 90° to the installation position in stages. Then the moving device (4) and the hydraulic support cooperate to react on the reversing moving device, so that the reversing moving device moves backward by one step, leaving space for the installation of the next hydraulic support.

2. The directional pushing device for hydraulic supports in fully mechanized coal mining faces according to claim 1, characterized in that: The pushing device (4) is provided with a detachable limiting block (47), a tumbler plate (45), and a pushing tongue plate (43). The detachable limiting block (47), the tumbler plate (45), and the pushing tongue plate (43) are arranged in sequence along the direction from the tail end to the front end of the pushing device (4). The limiting block (47) is used to limit the first-stage pushing position. The tumbler plate (45) achieves the second-stage pushing by gravity reset. The pushing tongue plate (43) is used to receive the hydraulic support and buffer the impact of landing. The pushing tongue plate (43) retracts to make the hydraulic support land in place. Alternatively, the limiting block (47) is used to limit the first-stage pushing position. The tumbler plate (45) achieves the second-stage pushing by gravity reset. The pushing tongue plate (43) is used to receive the hydraulic support and buffer the impact of landing. The pushing tongue plate (43) retracts to make the hydraulic support land and the pushing tongue plate (43) extends again to perform the third-stage pushing to make the hydraulic support land in place.

3. The directional pushing device for hydraulic supports in fully mechanized coal mining faces according to claim 1, characterized in that: The upper plane of the rotating platform (32) on the rotating device (3) is higher than the highest point of the upper plane of its transition platform (33), and the lowest point of the upper plane of the transition platform (33) on the rotating device (3) is higher than the highest point of the upper plane of the pushing tongue plate (43) on the pushing device (4).

4. The directional pushing device for hydraulic supports in fully mechanized coal mining faces according to any one of claims 1-3, characterized in that: The pushing device (4) includes a pushing base (40), a pushing cylinder (41), a roly-poly seat (42), and a pushing tongue plate (43). The tail end of the pushing base (40) is hinged to the crossbeam (2) via a hinge structure (5). A laser positioning device (48) is arranged in the middle of the inner cavity of the pushing base (40) to guide the positioning bracket transport vehicle to place the hydraulic bracket. A pushing cylinder (41) is arranged in the rear of the inner cavity of the pushing base (40). The piston rod is hinged to a tumbler seat (42) at the front end. The tumbler seat (42) is provided with multiple locking holes (46). The limiting block (47) is inserted into different locking holes (46) to limit the pushing stroke. The top of the tumbler seat (42) is provided with a tumbler plate (45), and the front end of the top of the tumbler seat (42) is hinged to a pushing tongue plate (43). The tumbler seat (42) and the pushing tongue plate (43) move forward or backward within the area defined by the pushing base (40).

5. The directional pushing device for hydraulic supports in fully mechanized coal mining faces according to claim 4, characterized in that: The push cylinder (41) is covered with a load-bearing plate (44), which is used for the transport vehicle to move on the push base (40).

6. The directional pushing device for hydraulic supports in fully mechanized coal mining faces according to any one of claims 1-3, characterized in that: The rotary device (3) includes a rotary base (30), a rotary cylinder (31), and a rotary platform (32). The rotary platform (32) is installed in the middle and rear part of the rotary base (30) and the rotary platform (32) is installed on the top of the rotary support. The rotary support installed in the inner cavity of the rotary base (30) meshes with the rack provided on the rotary cylinder (31) on the side. The rotary cylinder (31) drives the rack to move forward or backward by extension and retraction, thereby driving the rotary support and the rotary platform (32) on it to rotate.

7. The directional pushing device for hydraulic supports in fully mechanized coal mining faces according to claim 6, characterized in that: A transition platform (33) is provided on the front side of the rotary platform (32). The transition platform (33), as an intermediate structure, is used to receive the hydraulic support pushed forward by the pushing device (4) from the rotary platform (32). The upper surface of the transition platform (33) is lower than the upper surface of the rotary platform (32) to prevent the hydraulic support located on the transition platform (33) from retracting onto the rotary platform (32).

8. The directional pushing device for hydraulic supports in fully mechanized coal mining faces according to any one of claims 1-3, characterized in that: The ramp device (1), connecting beam (2), rotating device (3), and pushing device (4) are all modular structures. One side of the connecting beam (2) is hinged to a pair of ramp devices (1) through a hinge structure (5). The other side of the connecting beam (2) is hinged to the rotating device (3) and the pushing device (4) located on the left and right sides of the rotating device (3) through the hinge structure (5). The pushing device (4) is fixedly installed on both sides of the rotating device (3) by a pin hinge.

9. The directional pushing device for hydraulic supports in fully mechanized coal mining faces according to any one of claims 1-3, characterized in that: The connecting beam (2) includes a control box (20) in the middle and beam transition parts (21) on the left and right sides of the control box (20). The control box (20) and the beam transition parts (21) on both sides are integrally formed structures.

10. The directional pushing device for hydraulic supports in fully mechanized coal mining faces according to claim 9, characterized in that: The rotary device (3) is hinged to the crossbeam transition part (21) on both sides of the control box (20) via the hinge structure (5), and the pushing device (4) is hinged and fixed to the crossbeam transition part (21) on the same side via the hinge structure (5).

Images