An end bracket that can increase the sheathing area

Abstract

This utility model discloses an end support that can increase the protective wall area, comprising: two symmetrically arranged front frame bodies and two symmetrically arranged rear frame bodies; each front and rear frame body includes: a fixed horizontal plate at the bottom, a central support rod fixedly connected to the fixed horizontal plate, and a top support beam at the top of the central support rod; a third hydraulic cylinder and a third guard plate are arranged on the side of the top support beam, a fourth hydraulic cylinder and a fourth guard plate are arranged below the third guard plate, and a fifth hydraulic cylinder and a fifth guard plate are arranged below the fourth guard plate; this utility model consists of front and rear frame bodies, symmetrically arranged in two rows, and the front and rear frame bodies are symmetrically placed on both sides of the transfer machine to form a complete end support; the large working space ensures the coordinated operation of the end equipment.

Description

Technical Field

[0001] This utility model belongs to the field of downhole support equipment, and in particular relates to an end support that can increase the wall area. Background Technology

[0002] Hydraulic supports are structures used to control mine pressure in coal mining faces. The mine pressure acts on the hydraulic supports as an external load. In the mechanical system of interaction between the hydraulic supports and the surrounding rock of the mining face, if the resultant force of all supporting components of the hydraulic support is exactly linear with the resultant force of the external load acting on the hydraulic support from the roof, then the hydraulic support is highly suitable for the surrounding rock of that mining face.

[0003] End supports are hydraulic supports used to maintain the roof of the roadway at the end of a coal mining face. They are typically placed close to the head supports, providing sufficient column-free space at the end of the face for moving the tail of the transfer machine and the head of the conveyor, and also preventing the face supports from tilting. End supports can be classified into two types according to their arrangement in the roadway and their relationship with the conveyor head: head-supporting type and head-moving type.

[0004] Existing end supports have problems such as small support area, easy coal spillage, and missed areas. Utility Model Content

[0005] The purpose of this invention is to provide an end support that can increase the protective wall area, so as to solve the problems of small support area, easy coal spillage, and missed areas in the existing end supports.

[0006] The present invention adopts the following technical solution: an end bracket that can increase the protective wall area, comprising: two symmetrically arranged front frame bodies and two symmetrically arranged rear frame bodies; both the front frame body and the rear frame body include: a fixed horizontal plate at the bottom, a middle support rod fixedly connected to the fixed horizontal plate, and a top support beam at the top of the middle support rod;

[0007] The top support beam is equipped with a third hydraulic cylinder and a third guard plate on its side. The fixed end of the third hydraulic cylinder is hinged to the top support beam, and its movable end extends to the side and is fixedly connected to the lower end of the third guard plate. The upper end of the third guard plate is hinged to the top support beam. The third hydraulic cylinder is used to push the third guard plate to rotate around its hinge point with the top support beam, thereby unfolding to support the roof of the roadway.

[0008] Below the third guard plate, there is a fourth hydraulic cylinder and a fourth guard plate. The fixed end of the fourth hydraulic cylinder is hinged to the lower end of the third guard plate, and its movable end extends to the side and is fixedly connected to the middle of the fourth guard plate. The upper end of the fourth guard plate is hinged to the lower end of the third guard plate. The fourth hydraulic cylinder is used to push the fourth guard plate to rotate around the hinge point between it and the third guard plate, thereby unfolding to support the roof and sidewalls of the roadway.

[0009] Below the fourth guard plate, there is a fifth hydraulic cylinder and a fifth guard plate. The fixed end of the fifth hydraulic cylinder is hinged to the middle of the fourth guard plate, and its movable end extends to the side and is fixedly connected to the lower end of the fifth guard plate. The upper end of the fifth guard plate is hinged to the lower end of the fourth guard plate. The fifth hydraulic cylinder is used to push the fifth guard plate to rotate around the hinge point between it and the fourth guard plate, thereby unfolding to support the sidewall of the roadway.

[0010] Furthermore, a first hydraulic cylinder is provided in the middle of the central support rod. The fixed end of the first hydraulic cylinder is fixedly connected to the central support rod, and its movable end is fixedly connected to the top support beam. It is used to push the top support beam to move upward, thereby supporting the top of the roadway.

[0011] Furthermore, a second hydraulic cylinder is provided on the upper side of the fixed horizontal plate. The fixed end of the second hydraulic cylinder is fixedly connected to the fixed horizontal plate, and its movable end extends upward and is fixedly connected to the top support beam. It is used to cooperate with the first hydraulic cylinder to push the top support beam upward, thereby supporting the top of the roadway.

[0012] Furthermore, a sixth hydraulic cylinder is provided between the fixed horizontal plates of the front frame and the rear frame. The fixed end of the sixth hydraulic cylinder is fixed to the rear side of the fixed horizontal plate of the front frame, and its movable end is fixed to the front side of the fixed horizontal plate of the rear frame. It is used to push the front frame forward when it extends and to pull the rear frame forward when it retracts, thereby completing the stepping self-movement.

[0013] Furthermore, the middle support rod is composed of an upper support rod and a lower support rod that are hinged together. Both the upper and lower support rods are inclined and set at an obtuse angle. The fixed end of the first oil cylinder is fixed on the upper support rod near its lower end.

[0014] Furthermore, a seventh hydraulic cylinder is installed between the two symmetrically arranged front frames to secure them together and prevent tipping.

[0015] Furthermore, an eighth hydraulic cylinder is installed between the two symmetrically arranged rear frames to secure them together and prevent tipping.

[0016] The beneficial effects of this utility model are:

[0017] This utility model consists of a front frame and a rear frame, which are symmetrically arranged in two rows. The front frame and the rear frame are symmetrically placed on both sides of the transfer machine to form a complete end support; the large working space ensures the coordinated operation of the end equipment.

[0018] This utility model is equipped with a third guard plate, a fourth guard plate, and a fifth guard plate, and the third, fourth, and fifth guard plates are controlled by a third, fourth, and fifth hydraulic cylinder, thereby greatly increasing the support area of ​​the support and also providing partial support for the roadway sidewalls.

[0019] This invention, by setting a sixth hydraulic cylinder, can push the front frame forward when the sixth hydraulic cylinder extends and pull the rear frame forward when it retracts, thereby completing the stepping self-movement; and by setting a seventh and eighth hydraulic cylinder, the two symmetrically arranged front and rear frames are fixed together to form a whole, thereby preventing tipping and allowing the entire equipment to be adjusted when needed. Attached Figure Description

[0020] Figure 1 This is the front view of the present invention;

[0021] Figure 2 This is a side view of the present invention.

[0022] The components are: 10. Front frame; 11. Rear frame; 12. Fixed horizontal plate; 13. Middle support rod; 14. Top support beam; 15. Third hydraulic cylinder; 16. Third guard plate; 17. Fourth hydraulic cylinder; 18. Fourth guard plate; 19. Fifth hydraulic cylinder; 20. Fifth guard plate; 21. First hydraulic cylinder; 22. Second hydraulic cylinder; 23. Sixth hydraulic cylinder; 24. Upper support rod; 25. Lower support rod. Detailed Implementation

[0023] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0024] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "multiple" means two or more. The term "orientation" in this utility model refers to the orientation of the utility model within the... Figure 1 Description of the state's progression.

[0025] This utility model discloses an end bracket that can increase the protective wall area, such as... Figure 1 and 2As shown, it includes: two symmetrically arranged front frame bodies 10 and two symmetrically arranged rear frame bodies 11; both the front frame body 10 and the rear frame body 11 include: a fixed horizontal plate 12 located at the bottom, a central support rod 13 fixedly connected to the fixed horizontal plate 12, and a top support beam 14 located at the top of the central support rod 13.

[0026] A third hydraulic cylinder 15 and a third guard plate 16 are provided on the side of the top support beam 14. The fixed end of the third hydraulic cylinder 15 is hinged to the top support beam 14, and the movable end of the third hydraulic cylinder 15 extends to the side and is fixedly connected to the lower end of the third guard plate 16. The upper end of the third guard plate 16 is hinged to the top support beam 14. The third hydraulic cylinder 15 is used to push the third guard plate 16 to rotate around its hinge point with the top support beam 14, thereby unfolding to support the roof of the roadway.

[0027] A fourth hydraulic cylinder 17 and a fourth protective plate 18 are provided below the third protective plate 16. The fixed end of the fourth hydraulic cylinder 17 is hinged to the lower end of the third protective plate 16, and the movable end of the fourth hydraulic cylinder 17 extends to the side and is fixedly connected to the middle of the fourth protective plate 18. The upper end of the fourth protective plate 18 is hinged to the lower end of the third protective plate 16. The fourth hydraulic cylinder 17 is used to push the fourth protective plate 18 to rotate around its hinge point with the third protective plate 16, thereby unfolding to support the roof and sidewalls of the roadway.

[0028] Below the fourth guard plate 18, there is a fifth hydraulic cylinder 19 and a fifth guard plate 20. The fixed end of the fifth hydraulic cylinder 19 is hinged to the middle of the fourth guard plate 18, and the movable end of the fifth hydraulic cylinder 19 extends to the side and is fixedly connected to the lower end of the fifth guard plate 20. The upper end of the fifth guard plate 20 is hinged to the lower end of the fourth guard plate 18. The fifth hydraulic cylinder 19 is used to push the fifth guard plate 20 to rotate around its hinge point with the fourth guard plate 18, thereby unfolding to support the sidewall of the roadway.

[0029] A first hydraulic cylinder 21 is provided in the middle of the middle support rod 13. The fixed end of the first hydraulic cylinder 21 is fixedly connected to the middle support rod 13, and the movable end of the first hydraulic cylinder 21 is fixedly connected to the top support beam 14. The first hydraulic cylinder 21 is used to push the top support beam 14 to move upward, thereby supporting the top of the roadway.

[0030] A second hydraulic cylinder 22 is provided on the upper side of the fixed horizontal plate 12. The fixed end of the second hydraulic cylinder 22 is fixedly connected to the fixed horizontal plate 12, and the movable end of the second hydraulic cylinder 22 extends upward and is fixedly connected to the top support beam 14. The second hydraulic cylinder 22 is used to cooperate with the first hydraulic cylinder 21 to push the top support beam 14 upward, thereby supporting the top of the roadway.

[0031] A sixth hydraulic cylinder 23 is provided between the fixed horizontal plate 12 of the front frame 10 and the rear frame 11. The fixed end of the sixth hydraulic cylinder 23 is fixed to the rear side of the fixed horizontal plate 12 of the front frame 10, and the movable end of the sixth hydraulic cylinder 23 is fixed to the front side of the fixed horizontal plate 12 of the rear frame 11. The sixth hydraulic cylinder 23 is used to push the front frame 10 forward when it extends and to pull the rear frame 11 forward when it retracts, thereby completing the stepping self-movement.

[0032] The middle support rod 13 is composed of an upper support rod 24 and a lower support rod 25 that are hinged together. Both the upper support rod 24 and the lower support rod 25 are inclined and set at an obtuse angle. The fixed end of the first oil cylinder 21 is fixed on the upper support rod 24 near its lower end.

[0033] A seventh hydraulic cylinder is installed between the two symmetrically arranged front frame bodies 10 to secure them together and prevent them from tipping over. An eighth hydraulic cylinder is installed between the two symmetrically arranged rear frame bodies 11 to secure them together and prevent them from tipping over.

[0034] The method of using this utility model is as follows:

[0035] Place the utility model in the tunnel in its retracted state, then activate each hydraulic cylinder to fully unfold the utility model, thereby supporting the top and side walls of the tunnel. After the support is completed, retract the utility model again and transport it back to the surface.

[0036] The unfolding method of this utility model is as follows:

[0037] The first hydraulic cylinder (21) is activated, causing it to extend and push the top support beam (14) upward, thereby supporting the top of the tunnel.

[0038] The second hydraulic cylinder (22) is activated, causing it to extend and, in conjunction with the first hydraulic cylinder (21), push the top support beam (14) upward, thereby supporting the top of the tunnel.

[0039] The third hydraulic cylinder (15) is activated, causing it to extend and the third guard plate (16) to rotate outward and upward with its upper hinge point as the center, thereby fully unfolding the third guard plate (16) and supporting the top of the roadway.

[0040] The fourth hydraulic cylinder (17) is activated, causing it to extend and the fourth guard plate (18) to rotate outward and upward with its upper hinge point as the center, thereby fully unfolding the fourth guard plate (18) and supporting the top and side walls of the tunnel.

[0041] Start the fifth hydraulic cylinder (19) so that the fifth hydraulic cylinder (19) extends and the fifth guard plate (20) rotates outward continuously with its upper hinge point as the center, so that the fifth guard plate (20) is fully unfolded and supports the side wall of the roadway.

[0042] The sixth cylinder (23) is activated, causing it to extend and push the front frame (10) forward. When it retracts, it pulls the rear frame (11) forward, thus completing the stepping self-movement.

[0043] The seventh cylinder is activated, causing it to extend and fix and support the two front frames (10).

[0044] The eighth cylinder is activated, causing it to extend and fix and support the two rear frames (11).

[0045] The coordination of each hydraulic cylinder depends on the specific conditions of the roadway and sidewalls; that is, the extension amount and extension speed of each hydraulic cylinder must be determined according to the actual situation.

[0046] In addition, the two-end connections of the third hydraulic cylinder 15, the third guard plate 16, the fourth hydraulic cylinder 17, the fourth guard plate 18, the fifth hydraulic cylinder 19, and the fifth guard plate 20 in this utility model can all be set as hinged, that is: the fixed end of the third hydraulic cylinder 15 is hinged to the top support beam 14, the movable end of the third hydraulic cylinder 15 extends to the side and is hinged to the lower end of the third guard plate 16, the fixed end of the fourth hydraulic cylinder 17 is hinged to the lower end of the third guard plate 16, the movable end of the fourth hydraulic cylinder 17 extends to the side and is hinged to the middle of the fourth guard plate 18, the fixed end of the fifth hydraulic cylinder 19 is hinged to the middle of the fourth guard plate 18, and the movable end of the fifth hydraulic cylinder 19 extends to the side and is hinged to the lower end of the fifth guard plate 20. Because the conditions of the tunnel are complex, setting it as hinged can better adapt to the conditions in the tunnel.

[0047] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An end bracket that can increase the protective wall area, characterized in that, include: Two symmetrically arranged front frame bodies (10) and two symmetrically arranged rear frame bodies (11); each of the front frame bodies (10) and the rear frame bodies (11) includes: a fixed horizontal plate (12) at the bottom, a central support rod (13) fixedly connected to the fixed horizontal plate (12), and a top support beam (14) at the top of the central support rod (13). The top support beam (14) is provided with a third hydraulic cylinder (15) and a third guard plate (16) on its side. The fixed end of the third hydraulic cylinder (15) is hinged to the top support beam (14), and its movable end extends to the side and is hinged to the lower end of the third guard plate (16). The upper end of the third guard plate (16) is hinged to the top support beam (14). The third hydraulic cylinder (15) is used to push the third guard plate (16) to rotate around its hinge point with the top support beam (14), thereby unfolding to support the roof of the roadway. A fourth hydraulic cylinder (17) and a fourth hydraulic plate (18) are provided below the third guard plate (16). The fixed end of the fourth hydraulic cylinder (17) is hinged to the lower end of the third guard plate (16), and its movable end extends to the side and is hinged to the middle of the fourth guard plate (18). The upper end of the fourth guard plate (18) is hinged to the lower end of the third guard plate (16). The fourth hydraulic cylinder (17) is used to push the fourth guard plate (18) to rotate around the hinge point with the third guard plate (16), thereby unfolding to support the roof and sidewalls of the roadway. Below the fourth guard plate (18) are a fifth hydraulic cylinder (19) and a fifth guard plate (20). The fixed end of the fifth hydraulic cylinder (19) is hinged to the middle of the fourth guard plate (18), and its movable end extends to the side and is hinged to the lower end of the fifth guard plate (20). The upper end of the fifth guard plate (20) is hinged to the lower end of the fourth guard plate (18). The fifth hydraulic cylinder (19) is used to push the fifth guard plate (20) to rotate around its hinge point with the fourth guard plate (18), thereby unfolding to support the sidewall of the roadway.

2. The end bracket for increasing the protective wall area according to claim 1, characterized in that, The middle support rod (13) is provided with a first hydraulic cylinder (21). The fixed end of the first hydraulic cylinder (21) is fixedly connected to the middle support rod (13), and its movable end is fixedly connected to the top support beam (14). It is used to push the top support beam (14) to move upward, thereby supporting the top of the roadway.

3. The end bracket for increasing the protective wall area according to claim 2, characterized in that, A second hydraulic cylinder (22) is provided on the upper side of the fixed horizontal plate (12). The fixed end of the second hydraulic cylinder (22) is fixedly connected to the fixed horizontal plate (12), and its movable end extends upward and is fixedly connected to the top support beam (14). It is used to cooperate with the first hydraulic cylinder (21) to push the top support beam (14) upward, thereby supporting the top of the roadway.

4. The end bracket for increasing the protective wall area according to claim 1, characterized in that, A sixth hydraulic cylinder (23) is provided between the fixed horizontal plate (12) of the front frame (10) and the rear frame (11). The fixed end of the sixth hydraulic cylinder (23) is fixed to the rear side of the fixed horizontal plate (12) of the front frame (10), and its movable end is fixed to the front side of the fixed horizontal plate (12) of the rear frame (11). It is used to push the front frame (10) forward when it extends and to pull the rear frame (11) forward when it retracts, thereby completing the stepping self-movement.

5. An end bracket for increasing the protective wall area according to claim 2, characterized in that, The middle support rod (13) is composed of an upper support rod (24) and a lower support rod (25) hinged together. The upper support rod (24) and the lower support rod (25) are both inclined and set at an obtuse angle. The fixed end of the first oil cylinder (21) is fixed on the upper support rod (24) near its lower end.

6. The end bracket for increasing the protective wall area according to claim 1, characterized in that, A seventh hydraulic cylinder is provided between the two symmetrically arranged front frame bodies (10) for mutual fixation to prevent tipping.

7. An end bracket for increasing the protective wall area according to claim 1, characterized in that, An eighth hydraulic cylinder is provided between the two symmetrically arranged rear frame bodies (11) for mutual fixation to prevent tipping.

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