Damping device for coal mining machine for coal mine

Abstract

The damping device comprises a base, a connecting cylinder is fixedly connected to the upper surface of the base, a sleeve is slidably connected to the inner wall of the connecting cylinder, two through grooves are formed in the outer surface of the sleeve, a coal mining machine connecting plate is fixedly connected to the upper surface of the sleeve, and the coal mining machine connecting plate is fixedly connected to the lower surface of the sleeve. The upper surface of the base is fixedly connected with a damper, and the telescopic end of the damper is fixedly connected with a push plate. According to the device, the coal mining machine can be damped through cooperation of a damper and a spring, and through cooperation of a through groove, a positive and negative threaded rod, U-shaped plates, a first control plate and a second control plate, the U-shaped plates can get close to each other and get away from each other, so that a worker can control the positive and negative threaded rod to rotate outside a sleeve; furthermore, the first control plate and the second control plate can control the push plate to move up and down to compress and loosen the spring, so that the device can be debugged after being connected with the coal mining machine, and the debugging effect on equipment is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mines, in particular to a shock absorbing device for a coal mining machine in a coal mine. Background Art

[0002] In the process of coal mining, coal mining machines are an indispensable and important equipment. However, due to the vibration and impact generated by the coal mining machine during operation, it will have an adverse effect on the equipment itself and the surrounding environment, such as equipment damage, reduced efficiency, deterioration of the working environment, etc. Therefore, shock absorption devices are needed.

[0003] Through searching, Chinese patent announcement number CN220337355U discloses a shock absorbing device for coal mining machines used in coal mines, including a mounting seat, a positioning cylinder, a sliding cylinder, a mounting plate, a spring, a damper and an adjustment structure. The utility model is provided with an adjustment structure. When the spring needs to be debugged, the rotating part is rotated by a special tool, so that the threaded sleeve moves up and down in a vertical state along the surface of the adjustment screw, thereby driving the adjustment plate to adjust the spring and the damper. When the adjustment plate moves upward, the spring and the damper are stretched, and the elastic force of the spring decreases due to the stretching, thereby making the spring softer. When the adjustment plate moves downward, the spring and the damper are compressed, so that the elastic force of the spring increases and becomes harder, so that the spring can be adjusted and debugged after installation, avoiding the need to disassemble and debug the shock absorbing device when the spring needs to be debugged, and having a more convenient debugging effect.

[0004] Although the above scheme can debug the spring during use, since the adjustment mechanism is above the mounting plate during use, it is difficult to adjust the equipment according to the condition of the coal mining machine after it is connected to the coal mining machine, affecting the debugging effect of the shock absorbing device. For this reason, we propose a shock absorbing device for coal mining machines in coal mines to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a shock absorbing device for a coal mining machine used in a coal mine, so as to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] The cam is provided with a plurality of through-grooves, and the outer surface of the two sleeves is provided with a plurality of through-grooves, and the outer surface of the two sleeves is provided with a plurality of through-grooves, and the upper surface of the two sleeves is provided with a plurality of through-grooves, and the upper surface of the two sleeves is provided with a plurality of through-grooves, and the upper surface of the two sleeves is provided with a plurality of through-grooves, and the upper surface of the two sleeves is provided with a plurality of through-grooves, and the upper surface of the two sleeves is provided with a plurality of through-grooves, and the upper surface of the two sleeves is provided with a plurality of

[0008] In a further embodiment, two side plates are fixedly connected to the outer surface of the connecting tube, and the bottom surface of each side plate is fixedly connected to the upper surface of the base.

[0009] In a further embodiment, two L-shaped plates are fixedly connected to the bottom surface of the coal mining machine connecting plate, and the two L-shaped plates are respectively located in front of the positive and negative threaded rods and behind the positive and negative threaded rods.

[0010] In a further embodiment, two slide grooves are provided on the inner wall of the connecting tube, a slider is slidably connected to the inner wall of each slide groove, and the side surfaces of the two sliders close to each other are fixedly connected to the left and right side surfaces of the sleeve respectively.

[0011] In a further embodiment, a reinforcement ring is fixedly connected to the outer surface of the casing, and the upper surface of the reinforcement ring is fixedly connected to the bottom surface of the coal mining machine connecting plate.

[0012] In a further embodiment, two grooves are formed on the upper surface of the connecting tube, and each of the grooves is located directly below the forward and reverse threaded rods.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] This device can reduce the shock of the coal mining machine by cooperating with a damper and a spring. The U-shaped plates can be moved closer to or farther away from each other through the cooperation of the through grooves, the forward and reverse threaded rods, the U-shaped plates, the first control plate and the second control plate, so that the staff can control the rotation of the forward and reverse threaded rods outside the casing, and then the first control plate and the second control plate can control the push plate to move up and down, and tighten and relax the spring, so that the device can be debugged after being connected to the coal mining machine, ensuring the debugging effect of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of the base of a shock absorbing device for a coal mining machine used in a coal mine.

[0016] Figure 2 It is a schematic diagram of the top-sectional structure of the connecting tube in the shock absorbing device for a coal mining machine used in a coal mine.

[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of the connecting tube in the shock absorbing device for a coal mining machine used in a coal mine.

[0018] Figure 4 For the shock absorption device of coal mining machine in coal mine Figure 3 A schematic diagram of the enlarged structure in the middle.

[0019] In the figure: 1. base; 2. side plate; 3. connecting tube; 4. groove; 5. casing; 6. coal mining machine connecting plate; 7. through groove; 8. positive and negative threaded rod; 9. L-shaped plate; 10. nut; 11. slider; 12. slide groove; 13. push plate; 14. spring; 15. damper; 16. reinforcement ring; 17. threaded hole; 18. second control plate; 19. first control plate; 20. U-shaped plate. DETAILED DESCRIPTION

[0020] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-4 In the utility model, a shock absorbing device for a coal mining machine for a coal mine comprises a base 1, a connecting tube 3 is fixedly connected to the upper surface of the base 1, a sleeve 5 is slidably connected to the inner wall of the connecting tube 3, two through grooves 7 are provided on the outer surface of the sleeve 5, a coal mining machine connecting plate 6 is fixedly connected to the upper surface of the sleeve 5, and the coal mining machine can be connected to the coal mining machine through the coal mining machine connecting plate 6, and the base 1 is used to support the coal mining machine, a damper 15 is fixedly connected to the upper surface of the base 1, a push plate 13 is fixedly connected to the telescopic end of the damper 15, and a spring 14 is fixedly connected to the bottom surface of the push plate 13, and the spring 14, the damper 15 and the push plate 13 can be used to reduce the shock of the coal mining machine, and the bottom end of the spring 14 is fixedly connected to the upper surface of the base 1, and the coal mining machine The bottom surface of the connecting plate 6 is hinged to two first control plates 19 through two pins, each of the first control plates 19 is rotatably connected to a U-shaped plate 20 through a rotating rod, the inner walls of the two U-shaped plates 20 are rotatably connected to a second control plate 18 through a rotating rod, and the bottom end of each second control plate 18 is hinged to the upper surface of the push plate 13 through a pin, and threaded holes 17 are provided on the side surfaces of the two U-shaped plates 20 that are away from each other, and the inner walls of the two threaded holes 17 are commonly threadedly connected with positive and negative threaded rods 8, and the U-shaped plate 20 can control the first control plate 19 and the second control plate 18 to rotate through the positive and negative threaded rods 8, so that the height of the push plate 13 can be adjusted, and the outer surfaces of the positive and negative threaded rods 8 are threadedly connected with two positioning nuts 10.

[0024] The outer surface of the connecting tube 3 is fixedly connected to two side plates 2, and the bottom surface of each side plate 2 is fixedly connected to the upper surface of the base 1. By providing the side plates 2, the connection between the connecting tube 3 and the base 1 can be reinforced, so that the connection between the side plates 2 and the connecting tube 3 is more stable. The bottom surface of the coal mining machine connecting plate 6 is fixedly connected to two L-shaped plates 9, and the two L-shaped plates 9 are respectively located in front of the positive and negative threaded rods 8 and behind the positive and negative threaded rods 8. By providing the L-shaped plates 9, the first control plate 19 can be limited to prevent the first control plate 19 from shifting during the movement. The inner wall of the connecting tube 3 is provided with two sliding grooves 12, and the inner wall of each sliding groove 12 is slidably connected with a slider 11. The side surfaces of the two sliders 11 that are close to each other are fixedly connected to the left and right side surfaces of the casing 5 respectively. The slider 11 and the sliding groove 12 can be used to limit the casing 5 to prevent the casing 5 from separating from the connecting tube 3.

[0025] The outer surface of the sleeve 5 is fixedly connected with a reinforcement ring 16, and the upper surface of the reinforcement ring 16 is fixedly connected to the bottom surface of the coal mining machine connecting plate 6. The reinforcement ring 16 can be used to reinforce the coal mining machine connecting plate 6 to prevent the sleeve 5 from separating from the coal mining machine connecting plate 6. Two grooves 4 are provided on the upper surface of the connecting tube 3, and each groove 4 is located directly below the forward and reverse threaded rods 8. The grooves 4 can be used to accommodate the forward and reverse threaded rods 8 to prevent the forward and reverse threaded rods 8 from colliding with the connecting tube 3 during operation.

[0026] The working principle of the utility model is:

[0027] When in use, the device is connected to the coal mining machine through the coal mining machine connecting plate 6, and during use, the coal mining machine is damped by the spring 14 and the damper 15. When debugging is required, the forward and reverse threaded rods 8 outside the sleeve 5 are rotated to rotate the forward and reverse threaded rods 8. The forward and reverse threaded rods 8 control the movement of the U-shaped plate 20 through the threaded holes 17. The U-shaped plates 20 move closer to or away from each other, and the first control plate 19 and the second control plate 18 can control the push plate 13 to move up and down, thereby squeezing or relaxing the spring 14, thereby realizing the debugging of the shock absorbing device, and after the debugging is completed, the U-shaped plate 20 is positioned by rotating the nut 10 to prevent the U-shaped plate 20 from moving.

[0028] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0029] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A shock absorbing device for a coal mining machine used in a coal mine, characterized in that: The invention comprises a base (1), the upper surface of the base (1) is fixedly connected with a connecting tube (3), the inner wall of the connecting tube (3) is slidably connected with a sleeve (5), the outer surface of the sleeve (5) is provided with two through grooves (7), the upper surface of the sleeve (5) is fixedly connected with a coal mining machine connecting plate (6), the upper surface of the base (1) is fixedly connected with a damper (15), the telescopic end of the damper (15) is fixedly connected with a push plate (13), the bottom surface of the push plate (13) is fixedly connected with a spring (14), the bottom end of the spring (14) is fixedly connected to the upper surface of the base (1), and the bottom surface of the coal mining machine connecting plate (6) is fixedly connected to the upper surface of the base (1). Two first control plates (19) are hingedly connected by two pins, each of the first control plates (19) is rotatably connected to a U-shaped plate (20) via a rotating rod, the inner walls of the two U-shaped plates (20) are rotatably connected to a second control plate (18) via a rotating rod, the bottom end of each second control plate (18) is hingedly connected to the upper surface of a push plate (13) via a pin, a threaded hole (17) is provided on a side of the two U-shaped plates (20) away from each other, the inner walls of the two threaded holes (17) are threadedly connected to a positive and negative threaded rod (8), and the outer surfaces of the positive and negative threaded rod (8) are threadedly connected to two positioning nuts (10).

2. A shock absorbing device for a coal mining machine according to claim 1, characterized in that: The outer surface of the connecting tube (3) is fixedly connected to two side plates (2), and the bottom surface of each side plate (2) is fixedly connected to the upper surface of the base (1).

3. A shock absorbing device for a coal mining machine according to claim 1, characterized in that: Two L-shaped plates (9) are fixedly connected to the bottom surface of the coal mining machine connecting plate (6), and the two L-shaped plates (9) are respectively located in front of the positive and negative threaded rods (8) and behind the positive and negative threaded rods (8).

4. A shock absorbing device for a coal mining machine according to claim 1, characterized in that: The inner wall of the connecting tube (3) is provided with two sliding grooves (12), the inner wall of each sliding groove (12) is slidably connected with a slider (11), and the side surfaces of the two sliders (11) close to each other are fixedly connected to the left and right side surfaces of the sleeve (5) respectively.

5. A shock absorbing device for a coal mining machine according to claim 1, characterized in that: A reinforcement ring (16) is fixedly connected to the outer surface of the casing (5), and the upper surface of the reinforcement ring (16) is fixedly connected to the bottom surface of the coal mining machine connecting plate (6).

6. A shock absorbing device for a coal mining machine according to claim 1, characterized in that: Two grooves (4) are provided on the upper surface of the connecting tube (3), and each of the grooves (4) is located directly below the forward and reverse threaded rods (8).

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