Supporting leg of raking machine for coal mine underground roadway tunneling

Abstract

The utility model relates to the field of coal mine roadway tunneling, in particular to a raking machine supporting leg for coal mine underground roadway tunneling, which comprises a raking machine equipment body and further comprises a sleeve rod, a rail clamping device is arranged at the lower end of the raking machine equipment body, threaded through grooves are formed in the left end and the right end of the rail clamping device, and threaded rods are arranged in the threaded through grooves. One end of each threaded rod extends to the inner side of the corresponding rail clamping device and is fixedly provided with a clamping block, the other end of each threaded rod extends to the outer side of the corresponding rail clamping device and is fixedly provided with a rotary knob, mounting seats are fixedly mounted on the upper sides of the left end and the right end of the raking machine equipment body, and first connecting pieces are arranged on the inner sides of the mounting seats; according to the rail clamping device, the threaded rods drive the clamping blocks to move towards the rail by rotating the knobs at multiple positions, the rail clamping device is rapidly fixed on the surface of the rail in cooperation with an auxiliary workpiece, meanwhile, stress is shared by the multiple sets of threaded rods, and therefore the conditions of overload stress and distortion of the threaded rods are avoided; and the rail clamping strength of the supporting leg of the raking machine can be improved.

Description

Technical Field

[0001] The utility model relates to the field of coal mine roadway driving, in particular to a support leg of a scraper loader for coal mine underground roadway driving. Background Technique

[0002] During the production process of coal mine roadway driving, a scraper loader is needed for the external transportation of gangue. By matching with mine cars or skip buckets for loading operations, the driving speed can be increased and the mechanization of driving can be realized. This kind of equipment plays a crucial role in various projects, especially in coal mines, metallurgical mines, tunnels and other occasions where a large amount of rock needs to be loaded. Its use greatly improves work efficiency and reduces labor costs.

[0003] At present, the traditional support leg of the scraper loader adjusts the height of the support leg by threads. The threads are prone to slipping or the adjusting screw rod is rusted. After a long time of adjustment, the thread gap is too large and there is a loose phenomenon, which affects the support strength of the scraper loader. Moreover, the adjustment speed is slow during adjustment, the labor intensity of employees is high, the track clamp is small, the locking bolt is distorted, and the track clamping force is insufficient.

[0004] Therefore, aiming at the problems that the threads of the traditional support leg of the scraper loader are prone to wear or failure, affecting the support strength of the scraper loader, slow adjustment speed during adjustment, high labor intensity of employees, small track clamp and insufficient track clamping force, a support leg of a scraper loader with an oil cylinder for adjusting the support leg and a larger track clamp can be designed. Content of the Utility Model

[0005] In order to overcome the problems that the threads of the traditional support leg of the scraper loader are prone to wear or failure, affecting the support strength of the scraper loader, slow adjustment speed during adjustment, high labor intensity of employees, small track clamp and insufficient track clamping force.

[0006] The technical solution of the utility model is: a support leg of a scraper loader for coal mine underground roadway driving, including the main body of the scraper loader equipment, and also including a sleeve rod. A track clamp is arranged at the lower end of the main body of the scraper loader equipment. Threaded through grooves are opened at both the left and right ends of the track clamp. A threaded rod is arranged inside the threaded through grooves. One end of the threaded rod extends to the inside of the track clamp and is fixedly installed with a clamping block. The other end of the threaded rod extends to the outside of the track clamp and is fixedly installed with a knob. Mounting seats are fixedly installed on the upper sides of the left and right ends of the main body of the scraper loader equipment. A connecting piece one is arranged inside the mounting seats. The lower end of the connecting piece one extends to the outside of the mounting seats and is fixedly installed with a hydraulic cylinder. A movable block is slidably connected inside the sleeve rod. A support rod is fixedly installed at the upper end of the movable block. A first spring is fixedly installed at the lower end of the movable block. A second spring is fixedly installed at the side of the support rod at the upper end of the movable block. A connecting seat is fixedly installed at the lower end of the sleeve rod. A connecting piece two is arranged inside the connecting seat. The lower end of the connecting piece two extends to the outside of the connecting seat and is fixedly installed with a support anti-slip base.

[0007] Preferably, a roller is provided on the lower end of the loader equipment body on the side of the track clamp. A through groove is opened on the knob. The knob is used for quick tightening work, and an auxiliary tool such as a crowbar is inserted into the through groove for secondary tightening, so as to ensure the tightness and stability of the fixing work.

[0008] Preferably, the threaded rod is threadedly connected to the threaded through groove, and the threaded through grooves are equally spaced.

[0009] Preferably, the mounting seat is designed in a U-shaped structure, and the first connecting piece is rotatably connected to the mounting seat.

[0010] Preferably, the upper end of the support rod extends to the outside of the sleeve rod and is fixedly connected to the output end of the hydraulic cylinder, and the lower end of the first spring is fixedly connected to the sleeve rod.

[0011] Preferably, the second spring is sleeved on the support rod, and the upper end of the second spring is fixedly connected to the sleeve rod.

[0012] Preferably, the connecting seat is designed in a U-shaped structure, and the second connecting piece is rotatably connected to the connecting seat. When the hydraulic cylinder performs adjustment work, the distance between the equipment and the support point will be changed, so that the angle of the support structure will change accordingly. By using the rotational connections at the mounting seat and the connecting seat, it is ensured that the adjustment structure can extend and retract normally, avoiding movement interference.

[0013] Advantages of the present utility model:

[0014] 1. For the loader support leg for roadway tunneling in coal mines, first rotate the knobs at multiple places, so that the threaded rod drives the block to move towards the track, and cooperate with auxiliary workpieces to quickly complete the fixing work of the track clamp on the track surface. At the same time, multiple groups of threaded rods are used to share the force together, thus avoiding the situation that the threaded rod is overloaded and distorted, which is beneficial to improving the clamping force of the loader support leg on the track;

[0015] 2. For the loader support leg for roadway tunneling in coal mines, the length of itself is controlled and adjusted by the hydraulic cylinder. At the same time, during the adjustment process and the operation process of the loader, part of the force is transmitted to the first spring and the second spring by the support rod, so as to buffer and damp the force on the adjustment mechanism, thereby changing the overall length of the support leg mechanism more gently, completing the adjustment work of the loader support leg, and being beneficial to extending the service life of the equipment. Description of the Drawings

[0016] Figure 1 Shown is a three-dimensional structural schematic diagram of the loader support leg for roadway tunneling in coal mines of the present utility model;

[0017] Figure 2 Shown is a three-dimensional structural schematic diagram of the track clamp of the present utility model;

[0018] Figure 3What is shown is a three-dimensional structural schematic diagram of the hydraulic cylinder of the utility model;

[0019] Figure 4 What is shown is a schematic diagram of the three-dimensional structure of the support rod of the utility model.

[0020] Explanation of the accompanying reference numerals: 1. Rake loader equipment body; 2. Sleeve rod; 3. Rail clamp; 4. Threaded through groove; 5. Threaded rod; 6. Block; 7. Knob; 8. Mounting seat; 9. Connecting piece 1; 10. Hydraulic cylinder; 11. Movable block; 12. Support rod; 13. Spring 1; 14. Spring 2; 15. Connecting seat; 16. Connecting piece 2; 17. Support anti-slip base. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0022] Please refer to ( Figures 1 - 4 ), the utility model provides an embodiment: a support leg of a rake loader for tunnel excavation in an underground coal mine, comprising a rake loader equipment body 1, and also comprising a sleeve rod 2, a rail clamp 3 is arranged at the lower end of the rake loader equipment body 1, a threaded through groove 4 is provided at both left and right ends of the rail clamp 3, a threaded rod 5 is arranged inside the threaded through groove 4, one end of the threaded rod 5 extends to the inner side of the rail clamp 3 and is fixedly installed with a clamp block 6, the other end of the threaded rod 5 extends to the outer side of the rail clamp 3 and is fixedly installed with a knob 7, a mounting seat 8 is fixedly installed on the upper side of the left and right ends of the rake loader equipment body 1, and the inner side of the mounting seat 8 A connecting piece 9 is provided, and the lower end of the connecting piece 9 extends to the outer side of the mounting seat 8 and is fixedly installed with a hydraulic cylinder 10, a movable block 11 is slidably connected inside the sleeve rod 2, a support rod 12 is fixedly installed on the upper end of the movable block 11, a spring 13 is fixedly installed on the lower end of the movable block 11, and a spring 2 14 is fixedly installed on the upper end of the movable block 11 at the side of the support rod 12, a connecting seat 15 is fixedly installed on the lower end of the sleeve rod 2, a connecting piece 2 16 is provided on the inner side of the connecting seat 15, and a supporting anti-slip base 17 is fixedly installed on the lower end of the connecting piece 16 extending to the outer side of the connecting seat 15.

[0023] Please refer to ( Figures 1 - 2 ), in this embodiment, a roller is arranged at the lower end of the main body 1 of the rake loader equipment on the side of the track clamp 3, a through groove is opened on the knob 7, the threaded rod 5 is threadedly connected with the threaded through groove 4, and the threaded through groove 4 is distributed at equal intervals. First, the knobs 7 at multiple locations are rotated to make the threaded rod 5 drive the clamping block 6 to move toward the track, and cooperate with the auxiliary workpiece to quickly complete the fixing work of the track clamp 3 on the track surface, and at the same time, multiple groups of threaded rods 5 are used to share the force together, so as to avoid the threaded rod 5 from being overloaded and twisted, which is beneficial to improve the track clamping strength of the support leg of the rake loader.

[0024] Please refer to ( Figure 1 ,Figure 2 and Figure 4 ) In this embodiment, the mounting base 8 is designed in a U-shaped structure. The first connecting piece 9 is rotatably connected to the mounting base 8. The upper end of the support rod 12 extends to the outside of the sleeve rod 2 and is fixedly connected to the output end of the hydraulic cylinder 10. The lower end of the first spring 13 is fixedly connected to the sleeve rod 2. The second spring 14 is sleeved on the support rod 12, and the upper end of the second spring 14 is fixedly connected to the sleeve rod 2. The connecting seat 15 is designed in a U-shaped structure. The second connecting piece 16 is rotatably connected to the connecting seat 15. When adjusting the height of the support legs of the roadheader loader, the length of the hydraulic cylinder 10 is controlled and adjusted by itself. At the same time, during the adjustment process and the operation process of the roadheader loader, part of the force is transmitted to the first spring 13 and the second spring 14 by the support rod 12 to buffer and shock-absorb the force of the adjustment mechanism, so as to change the overall length of the support leg mechanism more gently, complete the adjustment work of the support legs of the roadheader loader, and is beneficial to extending the service life of the equipment.

[0025] When working, first rotate the knobs 7 at multiple places, so that the threaded rod 5 drives the clamping block 6 to move towards the track, and cooperate with the auxiliary workpiece to quickly complete the fixing work of the rail gripper 3 on the track surface. At the same time, multiple groups of threaded rods 5 are used to share the force together, so as to avoid the situation that the threaded rod 5 is overloaded and distorted. When adjusting the height of the support legs of the roadheader loader, the length of the hydraulic cylinder 10 is controlled and adjusted by itself. At the same time, during the adjustment process and the operation process of the roadheader loader, part of the force is transmitted to the first spring 13 and the second spring 14 by the support rod 12 to buffer and shock-absorb the force of the adjustment mechanism, so as to change the overall length of the support leg mechanism more gently and complete the adjustment work of the support legs of the roadheader loader.

[0026] Through the above steps, the length of the hydraulic cylinder 10 is controlled and adjusted by itself. At the same time, during the adjustment process and the operation process of the roadheader loader, part of the force is transmitted to the first spring 13 and the second spring 14 by the support rod 12 to buffer and shock-absorb the force of the adjustment mechanism, so as to solve the problems that the threads of the support legs of the traditional roadheader loader are prone to wear or failure, affecting the support strength of the roadheader loader, and the adjustment speed is slow during adjustment.

Claims

1. A support leg for a roadheader in a coal mine roadway, comprising a roadheader equipment body (1), characterized in that: It further includes a sleeve rod (2). A track clamp (3) is provided at the lower end of the loading machine equipment body (1). Threaded through grooves (4) are formed at both the left and right ends of the track clamp (3). A threaded rod (5) is arranged inside the threaded through groove (4). One end of the threaded rod (5) extends to the inner side of the track clamp (3) and is fixedly installed with a clamping block (6). The other end of the threaded rod (5) extends to the outer side of the track clamp (3) and is fixedly installed with a knob (7). Mounting seats (8) are fixedly installed on the upper sides of the left and right ends of the loading machine equipment body (1). A connecting member one (9) is arranged inside the mounting seat (8). The lower end of the connecting member one (9) extends to the outer side of the mounting seat (8) and is fixedly installed with a hydraulic cylinder (10). A movable block (11) is slidably connected inside the sleeve rod (2). A support rod (12) is fixedly installed at the upper end of the movable block (11). A first spring (13) is fixedly installed at the lower end of the movable block (11). A second spring (14) is fixedly installed at the side of the support rod (12) at the upper end of the movable block (11). A connecting seat (15) is fixedly installed at the lower end of the sleeve rod (2). A connecting member two (16) is arranged inside the connecting seat (15). The lower end of the connecting member two (16) extends to the outer side of the connecting seat (15) and is fixedly installed with a support anti-slip base (17).

2. A support leg for a rake loader used in underground roadway tunneling in coal mines, characterized in that: Rollers are arranged at the side of the lower end of the loading machine equipment body (1) located at the side of the track clamp (3). A through groove is formed on the knob (7).

3. A support leg of a rake loader for roadway driving in a coal mine according to claim 1, characterized in that: The threaded rod (5) is in threaded connection with the threaded through groove (4), and the threaded through grooves (4) are distributed at equal intervals.

4. A support leg for a roadheader in a coal mine roadway according to claim 1, characterized in that: The mounting seat (8) is designed in a U-shaped structure, and the connecting member one (9) is rotatably connected with the mounting seat (8).

5. A supporting leg for a roadheader in a coal mine roadway according to claim 1, characterized in that: The upper end of the support rod (12) extends to the outer side of the sleeve rod (2) and is fixedly connected with the output end of the hydraulic cylinder (10), and the lower end of the first spring (13) is fixedly connected with the sleeve rod (2).

6. A supporting leg of a rake loader for roadway tunneling in a coal mine according to claim 5, characterized in that: The second spring (14) is sleeved with the support rod (12), and the upper end of the second spring (14) is fixedly connected with the sleeve rod (2).

7. A support leg of a roadheader for coal mine roadway tunneling according to claim 1, characterized in that: The connecting seat (15) is designed in a U-shaped structure, and the connecting member two (16) is rotatably connected with the connecting seat (15).

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