Mine machinery hydraulic support frame deviation prevention mechanism

Abstract

The utility model discloses a kind of mine machinery hydraulic support frame anti-deviation mechanisms, it is related to mining technology field, including hydraulic cylinder, support seat, support frame, the contact of the anti-deviation support plate being set with beam two ends, when position deviation occurs in beam, it can effectively support effect to it, the slider being set slides in adjusting groove, when deviation occurs in beam to one end, L type support rod applies pressure to first telescopic rod by limiting sleeve, compression spring, realize that anti-deviation support plate can change position following the deviation of beam, to realize the anti-deviation support effect to beam, the corner positioning block being set can be positioned to the use of first telescopic rod, the support rod being set, when anti-deviation support plate moves following beam, pressure pressure is applied to second telescopic rod by support rod, the spring of second telescopic rod outer wall is compressed, to realize that anti-deviation positioning block moves following anti-deviation support plate, auxiliary anti-deviation work is carried out to support frame.

Description

Technical Field

[0001] This utility model relates to the field of mining technology, and in particular to an anti-deviation mechanism for a hydraulic support frame of mining machinery. Background Technology

[0002] In mining operations, hydraulic support frames serve as critical support equipment, and their stability and reliability directly impact the safety and efficiency of underground operations. With increasing mining depth and more complex geological conditions, core components such as crossbeams are prone to displacement when subjected to dynamic loads (such as roof pressure and blasting vibrations), leading to support failure, structural deformation, and even safety accidents. Traditional anti-displacement mechanisms for hydraulic support frames often employ rigid fixing structures or simple elastic limiting devices, which suffer from the following technical bottlenecks: Rigid fixed structures cannot adapt to the small displacements of the crossbeam under complex working conditions, which easily leads to stress concentration. Simple elastic devices can only provide unidirectional limiting. When the crossbeam deviates in multiple directions, the anti-deviation effect is significantly reduced. For example, when the pressure from the top plate is uneven, the crossbeam may twist or tilt laterally. Traditional mechanisms have difficulty adjusting the support position synchronously. The operating environment of mining machinery is subject to frequent vibrations, and the crossbeam deviation is often sudden and dynamic. Existing anti-deviation mechanisms rely on the rigid contact of mechanical parts or spring reset, which has a slow response speed and cannot suppress the deviation trend in time, resulting in the cumulative deviation exceeding the standard.

[0003] To address the above problems, it is necessary to design an anti-deviation mechanism for hydraulic support frames in mining machinery, thereby overcoming these issues. Utility Model Content

[0004] The main purpose of this utility model is to provide a hydraulic support frame anti-deviation mechanism for mining machinery, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A hydraulic support frame anti-deviation mechanism for mining machinery includes a hydraulic cylinder, a support base, and a support frame. Reinforcing blocks are fixedly connected to both ends of the top of the support frame. An adjustment groove is formed at the top end of each reinforcing block near the support base. A slider is connected inside the adjustment groove. A rounded corner adjustment block is connected to the top of the slider. A limit sleeve is connected to the end of the rounded corner adjustment block away from the support base via a connecting rod. A first telescopic rod is connected to the end of the limit sleeve away from the rounded corner adjustment block. A spring is sleeved on the outer wall of the first telescopic rod. A rounded corner positioning block is connected to the end of the first telescopic rod away from the limit sleeve. An L-shaped support rod is connected to the top of the limit sleeve. A connecting block is connected to the end of the L-shaped support rod away from the limit sleeve. An anti-deviation support plate is connected to one side of the connecting block.

[0006] As a preferred embodiment of this utility model, a support rod is connected to the bottom of the connecting block, a fixing sleeve is connected to the bottom of the support rod, a second telescopic rod is connected to one end of the fixing sleeve, springs are sleeved on the outer wall of the second telescopic rod, an installation block is connected to the end of the second telescopic rod away from the fixing sleeve, and an anti-displacement positioning block is connected to the end of the fixing sleeve away from the second telescopic rod.

[0007] As a preferred embodiment of this utility model, a support frame is fixedly connected to the top of the support base, a reinforcing rod is connected to the top of the support frame, a crossbeam is fixedly connected to the top of the reinforcing rod, and reinforcing ribs are fixedly connected between adjacent support frames.

[0008] In a preferred embodiment of this utility model, the slider slides inside the adjustment groove, the slider is fixedly connected to the rounded corner adjustment block, and the rounded corner adjustment block is rotatably connected to the limiting sleeve through a connecting rod.

[0009] In a preferred embodiment of this utility model, the limiting sleeve is rotatably connected to the first telescopic rod, the first telescopic rod is fixedly connected to the spring, and the first telescopic rod is rotatably connected to the rounded corner positioning block.

[0010] As a preferred embodiment of this utility model, the limiting sleeve is fixedly connected to the L-shaped support rod, the L-shaped support rod is rotatably connected to the connecting block, the connecting block is fixedly connected to the anti-deviation support plate, and the side of the anti-deviation support plate away from the connecting block contacts one end of the crossbeam.

[0011] In a preferred embodiment of this utility model, the support rod is rotatably connected to the connecting block, the support rod is fixedly connected to the fixing sleeve, and the fixing sleeve is rotatably connected to the second telescopic rod.

[0012] As a preferred embodiment of this utility model, the second telescopic rod is rotatably connected to the mounting block, the mounting block is fixedly connected to one side of the reinforcing block, the fixing sleeve is rotatably connected to the anti-deviation positioning block, and the end of the anti-deviation positioning block away from the fixing sleeve contacts one end of the support frame.

[0013] Beneficial effects Compared with the prior art, the present invention has the following beneficial effects: The anti-deviation mechanism of this hydraulic support frame for mining machinery has an anti-deviation support plate that contacts both ends of the crossbeam. When the crossbeam shifts position, it effectively supports it. The slider slides in the adjustment groove. When the crossbeam shifts to one end, the L-shaped support rod applies pressure to the first telescopic rod through the limiting sleeve, compressing the spring. This allows the anti-deviation support plate to change position with the crossbeam, thus providing anti-deviation support for the crossbeam. The rounded corner positioning block positions the first telescopic rod. When the anti-deviation support plate moves with the crossbeam, the support rod applies pressure to the second telescopic rod, compressing the spring on the outer wall of the second telescopic rod. This allows the anti-deviation positioning block to move with the anti-deviation support plate, providing auxiliary anti-deviation work for the support frame. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the beam installation structure of this utility model; Figure 3 This is a schematic diagram of the L-shaped support rod installation structure of this utility model; Figure 4 This is a schematic diagram of the anti-offset positioning block installation structure of this utility model.

[0015] In the diagram: 1. Hydraulic cylinder; 2. Support base; 3. Support frame; 4. Support bracket; 5. Reinforcing rod; 6. Crossbeam; 7. Reinforcing rib; 8. Reinforcing block; 9. Adjusting groove; 10. Slider; 11. Rounded corner adjusting block; 12. Limiting sleeve; 13. First telescopic rod; 14. Spring; 15. Rounded corner positioning block; 16. L-shaped support rod; 17. Connecting block; 18. Anti-deviation support plate; 19. Support rod; 20. Fixing sleeve; 21. Second telescopic rod; 22. Mounting block; 23. Anti-deviation positioning block. Detailed Implementation

[0016] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0017] like Figures 1-4As shown, a hydraulic support frame anti-deviation mechanism for mining machinery includes a hydraulic cylinder 1, a support base 2, and a support frame 3. Reinforcing blocks 8 are fixedly connected to both ends of the top of the support frame 3. An adjustment groove 9 is provided at the top end of the reinforcing block 8 near the support base 2. A slider 10 is connected inside the adjustment groove 9. A rounded corner adjustment block 11 is connected to the top of the slider 10. A limit sleeve 12 is connected to the end of the rounded corner adjustment block 11 away from the support base 2 via a connecting rod. A first telescopic rod 13 is connected to the end of the limit sleeve 12 away from the rounded corner adjustment block 11. A spring 14 is sleeved on the outer wall of the first telescopic rod 13. A rounded corner positioning block 15 is connected to the end of the first telescopic rod 13 away from the limit sleeve 12. An L-shaped support rod 16 is connected to the top of the limit sleeve 12. A connecting block 17 is connected to the end of the L-shaped support rod 16 away from the limit sleeve 12. An anti-deviation support plate 18 is connected to one side of the connecting block 17. The slider 10 slides inside the adjustment groove 9. The slider 10 is fixedly connected to the rounded corner adjustment block 11. The rounded corner adjustment block 11 is rotatably connected to the limiting sleeve 12 through the connecting rod. The limiting sleeve 12 is rotatably connected to the first telescopic rod 13. The first telescopic rod 13 is fixedly connected to the spring 14. The first telescopic rod 13 is rotatably connected to the rounded corner positioning block 15. The limiting sleeve 12 is fixedly connected to the L-shaped support rod 16. The L-shaped support rod 16 is rotatably connected to the connecting block 17. The connecting block 17 is fixedly connected to the anti-deviation support plate 18. The side of the anti-deviation support plate 18 away from the connecting block 17 contacts one end of the crossbeam 6. Specifically, at both ends of the crossbeam 6, a set of anti-deviation support plates 17 are installed to ensure close contact with the end face of the crossbeam, but with a small gap of 0.5-1mm to allow the crossbeam to be detected when a slight deviation occurs. An adjustment groove 9 is machined on the side of the support frame 4, and a slider 10 is installed in the adjustment groove 9 to ensure that the slider can slide freely in the groove but cannot leave the groove. One end of the L-shaped support rod 16 is fixedly connected to the slider 10, and the other end passes through the limiting sleeve 12. The first telescopic rod 13 passes through the limiting sleeve 12, and its outer wall is fitted with a spring 14. Rounded corner positioning blocks 15 are installed at both ends of the first telescopic rod 13 to limit its movement trajectory and prevent it from rotating or jamming when subjected to force, ensuring that the telescopic rod can only move along the axial direction. The other end of the first telescopic rod 13 is connected to the connecting block 17, and the connecting block 17 is fixed to the anti-deviation support plate 18. In this way, the anti-deviation support plate 18 is connected to the support frame 4 through this set of linkage mechanisms. The crossbeam 6 moves to the left, pushing the anti-deviation support plate 17 at its left end and the anti-deviation support plate 18 at its right end. The anti-deviation support plate 18 drives its fixed connecting block 17 to move to the left. The connecting block 17 pushes the first telescopic rod 13 to move to the left, while compressing the spring 14. The L-shaped support rod 16 moves accordingly, and the slider 10 at its other end slides to the left in the adjustment groove 9. During this process, the anti-deviation support plate 18 closely follows the deviation of the crossbeam 6, always providing support force to prevent it from deviating further, and absorbing the impact energy through the buffer of the spring.

[0018] A support rod 19 is connected to the bottom of the connecting block 17, a fixing sleeve 20 is connected to the bottom of the support rod 19, a second telescopic rod 21 is connected to one end of the fixing sleeve 20, springs 14 are sleeved on the outer wall of the second telescopic rod 21, an installation block 22 is connected to the end of the second telescopic rod 21 away from the fixing sleeve 20, and an anti-offset positioning block 23 is connected to the end of the fixing sleeve 20 away from the second telescopic rod 21. The top of the support base 2 is fixedly connected to the support frame 4, the top of the support frame 4 is connected to the reinforcing rod 5, the top of the reinforcing rod 5 is fixedly connected to the crossbeam 6, and the two adjacent support frames 4 are fixedly connected to the reinforcing rib 7. The support rod 19 is rotatably connected to the connecting block 17, the support rod 19 is fixedly connected to the fixing sleeve 20, the fixing sleeve 20 is rotatably connected to the second telescopic rod 21; the second telescopic rod 21 is rotatably connected to the mounting block 22, the mounting block 22 is fixedly connected to one side of the reinforcing block 8, the fixing sleeve 20 is rotatably connected to the anti-deviation positioning block 23, and the end of the anti-deviation positioning block 23 away from the fixing sleeve 20 contacts one end of the support frame 4. Specifically, as the connecting block 17 moves to the left, the support rod 19, which is rotatably connected to it, also swings. The other end of the support rod 19 pushes the fixing sleeve 20, which in turn applies pressure to the second telescopic rod 21, compressing the spring 14 on its outer wall. The fixing sleeve 20 drives the anti-deviation positioning block 23 to move to the left until it contacts the side of the support frame 4. After the anti-deviation positioning block 23 contacts, it forms a stable support point, which assists in locking the entire support frame 4 from another direction. This effectively prevents the entire support frame from overturning or becoming unstable due to the deviation of the crossbeam, and plays a double insurance role. When the external force that caused the deviation of the crossbeam disappears, the compressed spring 14 begins to rebound. The rebound force of the spring 14 pushes the first telescopic rod 13 and the second telescopic rod 21 to reset. The linkage mechanism then brings the anti-deviation support plate 18 and the anti-deviation positioning block 23 back to their initial positions. The support frame 4 is welded and fixed to the support base 2. Reinforcing ribs 7 are added between adjacent support frames 4. The two ends of the reinforcing rod 5 are bolted to the support frame 4 and the crossbeam 6 respectively. Anti-deviation support plates 18 are pre-installed at both ends of the crossbeam 6. One end of the L-shaped support rod 16 is hinged to the connecting block 17 through a pin, and the other end is inserted into the limiting sleeve 12. The first telescopic rod 13 passes through the limiting sleeve 12, and the outer wall is sleeved with a spring 14. Both ends are positioned by rounded corner positioning blocks 15. The adjusting groove 9 is milled on the side of the support frame 4. One end of the support rod 19 is rotatably connected to the connecting block 17, and the other end is welded to the fixing sleeve 20. The second telescopic rod 21 is inserted into the fixing sleeve 20, and the outer wall is sleeved with a spring 14. The mounting block 22 is connected to the reinforcing block 8 through bolts. The anti-deviation positioning block 23 is hinged to the fixing sleeve 20.

[0019] It should be noted that this utility model is an anti-deviation mechanism for a hydraulic support frame in mining machinery. During use, when uneven pressure on the top plate or mechanical vibration causes the crossbeam 6 to deviate to one end, such as to the left, the right end of the crossbeam 6 disengages from the anti-deviation support plate 18, and the left end pushes the anti-deviation support plate 18 to move to the left. The anti-deviation support plate 18, through the connecting block 17, drives the L-shaped support rod 16 to rotate around the limiting sleeve 12. The vertical section of the L-shaped support rod 16 pushes the limiting sleeve 12 to move to the left. The limiting sleeve 12, through the rounded corner adjusting block 11, drives the slider 10 to slide within the adjusting groove 9, converting the horizontal deviation of the crossbeam 6 into the linear displacement of the limiting sleeve 12. When the limiting sleeve 12 moves to the left, it pushes the first telescopic rod 13 to compress the spring 14. The reaction force of the spring 14 is fed back to the limiting sleeve 12 through the rounded corner positioning block 15, forming dynamic resistance. The rounded corner structure of the rounded corner positioning block 15 ensures that the first telescopic rod 13 only moves axially, avoiding deflection and jamming, while limiting the maximum compression. The anti-offset support plate 18 is allowed to offset with the crossbeam 6 to avoid rigid impact. When the offset of the crossbeam 6 reaches a threshold such as 5mm, the reaction force provided by the spring 14 is sufficient to suppress further offset. When the anti-offset support plate 18 moves to the left, the bottom support rod 19 rotates around the connecting block 17, pushing the fixed sleeve 20 to move downward. The fixed sleeve 20 drives the second telescopic rod 21 to compress the spring 14 on its outer wall. At the same time, the anti-offset positioning block 23 rotates around the fixed sleeve 20 and moves towards the side wall of the support frame 4. After the anti-offset positioning block 23 contacts the support frame 4, it provides lateral support force to prevent the crossbeam 6 from twisting or tilting. The spring 14 of the second telescopic rod 21 further absorbs the remaining impact force to ensure the stability of the mechanism under multi-directional offset. When the external load disappears, the crossbeam 6 is reset under the action of the hydraulic cylinder 1. The anti-offset support plate 18 and the anti-offset positioning block 23 return to their initial positions under the elastic force of the spring 14. The sliding cooperation of the rounded corner adjustment block 11 and the slider 10 ensures a smooth reset trajectory without the risk of jamming.

[0020] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A hydraulic support frame anti-deviation mechanism for mining machinery, comprising a hydraulic cylinder (1), a support base (2), and a support frame (3), characterized in that: The top of the support frame (3) is fixedly connected to both ends of a reinforcing block (8). The top of the reinforcing block (8) near the support base (2) is provided with an adjustment groove (9). The inside of the adjustment groove (9) is connected to a slider (10). The top of the slider (10) is connected to a rounded corner adjustment block (11). The end of the rounded corner adjustment block (11) away from the support base (2) is connected to a limit sleeve (12) via a connecting rod. The end of the limit sleeve (12) away from the rounded corner adjustment block (11) is connected to a first telescopic rod (13). The outer wall of the first telescopic rod (13) is fitted with a spring (14). The end of the first telescopic rod (13) away from the limit sleeve (12) is connected to a rounded corner positioning block (15). The top of the limit sleeve (12) is connected to an L-shaped support rod (16). The end of the L-shaped support rod (16) away from the limit sleeve (12) is connected to a connecting block (17). One side of the connecting block (17) is connected to an anti-deviation support plate (18).

2. The anti-deviation mechanism for a hydraulic support frame in mining machinery according to claim 1, characterized in that: The bottom of the connecting block (17) is connected to a support rod (19), the bottom of the support rod (19) is connected to a fixing sleeve (20), one end of the fixing sleeve (20) is connected to a second telescopic rod (21), the outer wall of the second telescopic rod (21) is fitted with a spring (14), the end of the second telescopic rod (21) away from the fixing sleeve (20) is connected to an installation block (22), and the end of the fixing sleeve (20) away from the second telescopic rod (21) is connected to an anti-offset positioning block (23).

3. The anti-deviation mechanism for a hydraulic support frame in mining machinery according to claim 1, characterized in that: The top of the support base (2) is fixedly connected to a support frame (4), the top of the support frame (4) is connected to a reinforcing rod (5), the top of the reinforcing rod (5) is fixedly connected to a crossbeam (6), and a reinforcing rib (7) is fixedly connected between two adjacent support frames (4).

4. The anti-deviation mechanism for a hydraulic support frame in mining machinery according to claim 1, characterized in that: The slider (10) slides inside the adjustment groove (9), and the slider (10) is fixedly connected to the rounded corner adjustment block (11). The rounded corner adjustment block (11) is rotatably connected to the limiting sleeve (12) through the connecting rod.

5. The anti-deviation mechanism for a hydraulic support frame in mining machinery according to claim 1, characterized in that: The limiting sleeve (12) is rotatably connected to the first telescopic rod (13), the first telescopic rod (13) is fixedly connected to the spring (14), and the first telescopic rod (13) is rotatably connected to the rounded corner positioning block (15).

6. The anti-deviation mechanism for a hydraulic support frame in mining machinery according to claim 3, characterized in that: The limiting sleeve (12) is fixedly connected to the L-shaped support rod (16), the L-shaped support rod (16) is rotatably connected to the connecting block (17), the connecting block (17) is fixedly connected to the anti-deviation support plate (18), and the side of the anti-deviation support plate (18) away from the connecting block (17) contacts one end of the crossbeam (6).

7. The anti-deviation mechanism for a hydraulic support frame in mining machinery according to claim 2, characterized in that: The support rod (19) is rotatably connected to the connecting block (17), the support rod (19) is fixedly connected to the fixing sleeve (20), and the fixing sleeve (20) is rotatably connected to the second telescopic rod (21).

8. The anti-deviation mechanism for a hydraulic support frame in mining machinery according to claim 2, characterized in that: The second telescopic rod (21) is rotatably connected to the mounting block (22), the mounting block (22) is fixedly connected to one side of the reinforcing block (8), the fixing sleeve (20) is rotatably connected to the anti-deviation positioning block (23), and the end of the anti-deviation positioning block (23) away from the fixing sleeve (20) is in contact with one end of the support frame (4).

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