Mining machinery supporting structure

Abstract

The utility model belongs to the technical field of mining machinery, and particularly relates to a mining machinery supporting structure which comprises a bottom plate, a connecting arm, a side supporting piece, a top supporting piece and a plurality of hydraulic cylinders, the bottom plate is provided with a first anti-slip strip, the ground contact area is expanded through a movable supporting piece, and the structural stability is improved; due to the multi-point distribution design of the connecting arms and the pin joint plates, the supporting structure can adapt to irregular tunnel walls, and a reliable supporting effect is provided by uniformly dispersing supporting force; the top supporting piece, the side supporting piece and the lug plate are adjusted through a first hydraulic cylinder, a second hydraulic cylinder and a third hydraulic cylinder correspondingly, and the stability and fitting performance of the supporting structure in different positions in the tunnel are guaranteed. And reinforcing plates are arranged on the top supporting piece and the side supporting pieces, so that the bending resistance and the deformation resistance of the structure are improved, and the service life of the supporting structure is prolonged.

Description

Technical Field

[0001] This utility model belongs to the field of mining machinery technology, and specifically relates to a support structure for mining machinery. Background Technology

[0002] In mining operations, the support structure within tunnels is crucial for maintaining tunnel stability and construction safety. Currently, most support structures are designed using fixed support rods and top supports. While these structures can generally meet basic support requirements, they struggle to adapt to complex, irregular tunnel shapes or uneven ground conditions, leading to instability and insufficient support strength. Furthermore, the relatively small contact area between the base plate and the ground in conventional support structures increases the risk of tilting or sliding, thus affecting the overall safety of the tunnel.

[0003] To improve the stability of mining machinery support structures, some designs employ hydraulic systems to adjust the extension and retraction of support rods. However, these designs still have some shortcomings. On the one hand, existing hydraulic support devices primarily provide support in one direction, failing to fully conform to irregular tunnel walls, resulting in uneven support. On the other hand, the base plate of the support structure cannot be adjusted in area according to ground conditions, affecting the stability and adaptability of the support system. Therefore, existing mining machinery support structures are still insufficient to fully meet the needs of complex terrain and irregular tunnels. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of this utility model is to provide a mining machinery support structure that can adapt to complex terrain, improve the stability of the bottom plate, and reliably support irregular tunnel walls, thereby improving the safety and stability of mining operations.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A mining machinery support structure includes a base plate resting on the ground, a connecting arm rotatably connected to one end of the base plate, a side support rotatably connected to the movable end of the connecting arm, and a top support rotatably connected to the top of the side support.

[0007] A first hydraulic cylinder is rotatably connected between the base plate and the top support component;

[0008] A third hydraulic cylinder is rotatably connected between the side support and the top support.

[0009] Furthermore, the lower end face of the base plate is provided with first anti-slip strips at equal intervals along its length;

[0010] A movable support component is movably inserted into the other end of the base plate;

[0011] The movable support includes a positioning plate, and a second anti-slip strip is fixedly connected to the lower end face of the positioning plate;

[0012] The first and second anti-slip strips have the same shape, both being inverted triangles.

[0013] Furthermore, the base plate is fixedly connected with pin plates at equal intervals along its width direction inside;

[0014] The positioning plate has extension plates evenly spaced along its width direction on one side;

[0015] The extension plate and the pin joint plate are arranged alternately;

[0016] The top of the base plate is provided with locking screws for locking the position of the extension plate.

[0017] Furthermore, the number of connecting arms is set to multiple, and the multiple connecting arms are pinned between adjacent pin plates.

[0018] Furthermore, the side support includes a first support plate;

[0019] The top support includes a second support plate;

[0020] A third hydraulic cylinder is rotatably connected between the first and second support plates.

[0021] Furthermore, a first reinforcing plate is fixedly connected to both sides of the first support plate;

[0022] The second support plate is fixedly connected to both sides of the second support plate.

[0023] Furthermore, the movable end of the top support is rotatably connected to an ear plate;

[0024] Furthermore, a second hydraulic cylinder is rotatably connected between the top support and the ear plate.

[0025] Compared with the prior art, the beneficial effects of this utility model are:

[0026] This mining machinery support structure, through its rationally designed support structure, increases the contact area between the base plate and the bottom of the tunnel, thereby enhancing the overall stability of the support structure. By installing a first anti-slip strip on the lower end face of the base plate and a second anti-slip strip of the same shape on the lower end face of the positioning plate of the movable support component, these inverted triangular anti-slip strips increase the friction between the base plate and the ground, significantly improving the anti-slip effect of the support structure on uneven ground. This prevents the support structure from slipping or tilting at the bottom of the tunnel, effectively solving the problem of insufficient stability in existing support structures.

[0027] Through the rational design of multiple connecting arms and pin-connecting plates, a stable and flexible connection between the base plate and the connecting arms is achieved. The multiple connecting arms, evenly spaced with the pin-connecting plates, effectively adapt to different tunnel wall shapes. Multi-point support disperses the supporting force, providing a more reliable support effect. This design solves the problem of poor adaptability of traditional support structures in irregular tunnels, ensuring uniform support under different tunnel wall conditions and improving overall applicability and reliability.

[0028] The support structure incorporates a first, second, and third hydraulic cylinder, enabling precise adjustment of the side supports, top supports, and ear plates according to the shape of the tunnel wall. The first hydraulic cylinder, connected between the base plate and the top support, adjusts the relative distance between them to accommodate varying heights within the tunnel. The third hydraulic cylinder, connected between the first and second support plates, provides adjustment of the support force between the side and top supports, ensuring better contact between the support surface and the tunnel wall. The second hydraulic cylinder is positioned between the top support and the ear plates, allowing the ear plates to flexibly abut against the irregular surface of the tunnel roof. This multi-cylinder design effectively solves the problem of uneven support force in irregular tunnels, ensuring the stability and reliability of the support structure.

[0029] The reinforcing plates on the top and side supports enhance the bending and deformation resistance of the support structure under stress. The first and second reinforcing plates, respectively installed on both sides of the first and second supports, ensure the overall strength of the support structure during stress and extend its service life. This design effectively solves the problem of easy deformation in existing support structures, improving the stability and safety of the support, especially in complex tunnel environments. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of this utility model;

[0031] Figure 2 This is a schematic diagram of the structure of the base plate of this utility model;

[0032] Figure 3 This is a schematic diagram of the structure of the top support component of this utility model;

[0033] Figure 4 This is a schematic diagram of the structure of the movable support component of this utility model.

[0034] The attached diagram lists the components represented by each number as follows:

[0035] 1. Base plate; 11. First anti-slip strip; 12. Pin joint plate; 13. Locking screws;

[0036] 2. Connecting arm;

[0037] 3. Side support; 31. First support plate; 32. First reinforcing plate;

[0038] 4. Top support component; 41. Second support plate; 42. Second reinforcing plate;

[0039] 5. Ear plates;

[0040] 6. First hydraulic cylinder;

[0041] 7. Second hydraulic cylinder;

[0042] 8. Third hydraulic cylinder;

[0043] 9. Movable support component; 91. Positioning plate; 911. Second anti-slip strip; 92. Extension plate. Detailed Implementation

[0044] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0045] See Figure 1-4 A mining machinery support structure includes a base plate 1 resting on the ground. A connecting arm 2 is rotatably connected to one end of the base plate 1, and a side support 3 is rotatably connected to the movable end of the connecting arm 2. A top support 4 is rotatably connected to the top of the side support 3. The rotatable connection between the connecting arm 2 and the side support 3 allows the support structure to adapt to different tunnel wall irregularities, forming a more closely fitting support effect. The top support 4 provides stable support to the tunnel top wall during the support process, and the safety and reliability of the support are further improved by tightening one end of the base plate 1 to lock the structure. The base plate 1 and the top support 4 are rotatably connected by a first hydraulic cylinder 6. By controlling the extension and retraction of the first hydraulic cylinder 6, the precise distance between the base plate 1 and the top support 4 can be adjusted to adapt to irregular structures within the tunnel. A third hydraulic cylinder 8 is also rotatably connected between the side support 3 and the top support 4. The third hydraulic cylinder 8 provides stable support force to the tunnel wall through its extension and retraction characteristics.

[0046] See Figure 1 and Figure 4The lower end face of the base plate 1 is provided with first anti-slip strips 11 at equal intervals along its length. The other end of the base plate 1 is movably connected to a movable support member 9. By inserting and adjusting the movable support member 9, the contact area between the base plate 1 and the ground can be expanded, thereby enhancing the stability of the base plate 1 at the bottom of the tunnel. The movable support member 9 includes a positioning plate 91, and the lower end face of the positioning plate 91 is fixedly connected to a second anti-slip strip 911. The first anti-slip strip 11 and the second anti-slip strip 911 have the same shape, both set as inverted triangles. The inverted triangle structure of the anti-slip strip can increase the friction between the base plate 1 and the positioning plate 91 and the ground, effectively preventing the base plate 1 from sliding or shifting when the tunnel ground is uneven, thereby improving the stability of the entire support structure.

[0047] See Figure 1 and Figure 4 The base plate 1 has pin-connecting plates 12 fixedly connected at equal intervals along its width direction inside; one side of the positioning plate 91 has extension plates 92 at equal intervals along its width direction, and the extension plates 92 and pin-connecting plates 12 are staggered to ensure the stability of the insertion of the movable support 9 in the base plate 1; the top of the base plate 1 is provided with locking screws 13 for locking the position of the extension plates 92. By tightening the locking screws 13, the extension plates 92 can be fixed between the pin-connecting plates 12 to ensure the stability of the positioning plate 91. This arrangement not only enhances the safety of the movable support 9 during use, but also effectively prevents the extension plates 92 from sliding under stress.

[0048] See Figure 1-2 The number of connecting arms 2 is set to multiple, and the multiple connecting arms 2 are pinned between adjacent pin plates 12. By distributing multiple connecting arms 2 at equal intervals between pin plates 12, the support structure can better adapt to different shapes of the tunnel wall and evenly distribute the support force under the action of multi-point support. The pinning method of multiple connecting arms 2 and pin plates 12 further improves the stability and durability of the support structure.

[0049] See Figure 3 The side support 3 includes a first support plate 31, and the top support 4 includes a second support plate 41. A third hydraulic cylinder 8 is rotatably connected between the first support plate 31 and the second support plate 41. Through the extension and retraction adjustment of the third hydraulic cylinder 8, the first support plate 31 and the second support plate 41 can provide appropriate support force in different directions, thereby ensuring that the support surfaces of the side support 3 and the top support 4 can fit more closely with the tunnel wall, effectively dispersing the force on the tunnel wall and improving the stability and safety of the support.

[0050] See Figure 3Both sides of the first support plate 31 are fixedly connected to the first reinforcing plate 32, and both sides of the second support plate 41 are fixedly connected to the second reinforcing plate 42. Through the design of the first reinforcing plate 32 and the second reinforcing plate 42, the first support plate 31 and the second support plate 41 have higher bending and deformation resistance when subjected to force, ensuring the structural strength of the side support member 3 and the top support member 4 during the support process, extending the service life of the support structure, and improving the overall stability.

[0051] See Figure 1 The movable end of the top support 4 is rotatably connected to the ear plate 5, and a second hydraulic cylinder 7 is rotatably connected between the top support 4 and the ear plate 5. Through the extension and retraction control of the second hydraulic cylinder 7, the ear plate 5 can abut against different heights or irregular surfaces of the tunnel top wall, thereby providing additional support force to the top wall during use, improving the stability of the support structure, and enhancing the adaptability and support effect under complex conditions in the tunnel.

[0052] The working principle of this utility model is as follows:

[0053] When in use, place the base plate 1 at the bottom of the tunnel and pull out the movable support 9 from one end of the base plate 1. By tightening the locking screw 13, the movable support 9 and the base plate 1 are fixedly connected. By pulling out the movable support 9, the contact area between the base plate 1 and the ground can be increased, thus making it more stable.

[0054] By controlling the extension and retraction of the second hydraulic cylinder 7, the third hydraulic cylinder 8, and the first hydraulic cylinder 6, the side support 3, the top support 4, and the ear plate 5 can be pressed against the irregular tunnel wall.

[0055] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A mine machinery support structure, characterized by: Including the bottom plate (1) on the ground, one end of the bottom plate (1) is rotatably connected with the connecting arm (2), the movable end of the connecting arm (2) is rotatably connected with the side support (3), the top of the side support (3) is rotatably connected with the top support (4); The first hydraulic cylinder (6) is rotatably connected between the bottom plate (1) and the top support (4); The third hydraulic cylinder (8) is rotatably connected between the side support (3) and the top support (4); The lower end surface of the bottom plate (1) is provided with first anti-skid strips (11) at equal intervals along the length direction thereof; The other end of the bottom plate (1) is movably inserted with the movable support (9); The movable support (9) comprises a positioning plate (91), and the lower end surface of the positioning plate (91) is fixedly connected with a second anti-skid strip (911); The first anti-skid strip (11) and the second anti-skid strip (911) are the same shape, both of which are set as inverted triangular shapes; The inside of the bottom plate (1) is fixedly connected with pin connection plates (12) at equal intervals along the width direction thereof; One side of the positioning plate (91) is provided with an extension plate (92) at equal intervals along the width direction thereof; The extension plate (92) and the pin connection plate (12) are staggered. The top of the bottom plate (1) is provided with locking screws (13) for locking the position of the extension plate (92).

2. A mine machinery support structure according to claim 1, characterised in that: The number of the connecting arms (2) is set to be multiple, and the multiple connecting arms (2) are pin-connected between adjacent pin connection plates (12).

3. A mine machinery support structure according to claim 1, characterised in that: The side support (3) comprises a first support plate (31); The top support (4) comprises a second support plate (41); The first support plate (31) and the second support plate (41) are rotatably connected with the third hydraulic cylinder (8).

4. A mine machinery support structure according to claim 3, characterised in that: Both sides of the first support plate (31) are fixedly connected with first reinforcing plates (32); Both sides of the second support plate (41) are fixedly connected with second reinforcing plates (42).

5. A mine machinery support structure according to claim 1, characterised in that: The movable end of the top support (4) is rotatably connected with an ear plate (5); And the top support (4) and the ear plate (5) are rotatably connected with the second hydraulic cylinder (7).

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