A shock-absorbing device for the base of a coal mine ventilation fan

Abstract

This utility model relates to the technical field of vibration damping devices for ventilation fan bases, and more particularly to a vibration damping device for a coal mine ventilation fan base. It includes vibration damping components installed at the four corners of the bottom of the ventilation fan base. A base plate is connected to the bottom of each vibration damping component, and the two base plates are fixed together by reinforcement components. Each vibration damping component includes a threaded post inserted into a through hole in the ventilation fan base. A locking cap is threaded onto the top of the threaded post, and a rubber base sleeve is connected to the bottom of the threaded post, with the bottom of the rubber base sleeve fixedly connected to the base plate. This utility model, through a composite structure of the rubber base sleeve and vibration damping spring, effectively absorbs the vertical vibration energy during ventilation fan operation, blocking the transmission of vibration to the base plate and mine structure, significantly reducing the risk of equipment fatigue damage. The spacing between the left and right base plates is flexibly adjustable through pull-out inserts and screw sets. Combined with the interlocking design of the positioning groove and rectangular block, it ensures the overall stability of the base after it is anchored to the ground.

Description

Technical Field

[0001] This utility model relates to the technical field of vibration damping devices for ventilation fan bases, and in particular to a vibration damping device for a coal mine ventilation fan base. Background Technology

[0002] Coal mine ventilation fans are key equipment in mine ventilation systems, used to provide fresh air, remove harmful gases and dust, ensure air quality in the mine, and protect the lives of miners. However, ventilation fans generate significant vibrations during operation. These vibrations are transmitted not only to the equipment base but also, potentially, to the ground, thus affecting the structural stability of the mine and the service life of the equipment.

[0003] Traditional ventilation fan bases typically use rigid connections, which cannot effectively absorb and isolate vibrations. This design not only leads to fatigue damage to the equipment itself but also increases the vibration load on the mine structure, affecting the mine's safety and stability. Furthermore, long-term vibration can cause equipment components to loosen and wear more quickly, increasing maintenance costs and failure rates. Therefore, a vibration damping device for coal mine ventilation fan bases is needed to solve these problems. Utility Model Content

[0004] The purpose of this invention is to solve the problems mentioned in the background section.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A vibration damping device for a coal mine ventilation fan base includes vibration damping parts installed at the four corners of the bottom end of the ventilation fan base. A base plate is connected to the bottom of the vibration damping parts, and the two base plates on the left and right sides are connected and fixed together by a reinforcement part.

[0007] The shock-absorbing component includes a threaded post inserted into the through hole of the ventilator base. The top of the threaded post is threaded with a locking cap, and the bottom of the threaded post is connected to a rubber base sleeve, which is fixedly connected to the base plate.

[0008] Preferably, the top of the threaded post is fitted with a rubber cap, and the bottom of the rubber cap is in contact with the top surface of the locking cap. The top of the rubber cap is designed with a curved dome shape. After the locking cap is locked, the rubber cap can be fitted onto the top of the threaded post to cover the threaded post and provide a certain degree of protection for the external threads of the threaded post.

[0009] Preferably, a shock-absorbing spring is provided at the center of the inner wall of the rubber base sleeve, and an annular plate end design is provided at the bottom end of the inner wall of the rubber base sleeve near the shock-absorbing spring. The rubber base sleeve can buffer and relieve the vibration force generated by the operation of the fan base. At the same time, the inner wall of the rubber base sleeve is supported by the shock-absorbing spring to ensure the elasticity and expansion effect of the rubber base sleeve and improve the rebound effect of the rubber base sleeve.

[0010] Preferably, a thickening ring is connected to the inclined surface of the inner wall of the rubber base sleeve, and a top fixing ring is connected to the top edge of the inner wall of the rubber base sleeve. The thickening ring can thicken the inclined surface of the rubber base sleeve, and the thickening ring of the inclined inner wall improves the shear resistance and prevents the rubber base sleeve from being easily damaged.

[0011] Preferably, the reinforced part includes a left connecting plate, and an insert plate is connected to the right side of the left connecting plate. The insert plate is inserted into the right connecting plate through a through groove. The insert plate and the right connecting plate are fixed together by screws. The distance between the left connecting plate and the right connecting plate can be adjusted by pulling and moving the insert plate in the through groove of the right connecting plate.

[0012] Preferably, both the left and right connecting plates have positioning screws inserted into their sides via strip grooves, with the bottom end of the positioning screw fixed to the surface of the base plate. The top end of the positioning screw is threaded with a nut, which, by threading the nut onto the surface of the positioning screw, ensures the stable connection between the left and right connecting plates and the two base plates.

[0013] Preferably, the bottom edges of the left and right connecting plates are provided with rectangular blocks, and the rectangular blocks are embedded in the surface of the base plate through positioning grooves. The rectangular blocks at the bottom of the left and right connecting plates can be embedded in the positioning grooves of the base plate, thereby realizing the installation and positioning of the left and right connecting plates.

[0014] This utility model has at least the following beneficial effects:

[0015] 1. Through the composite structure of rubber base sleeve and shock-absorbing spring, the vertical vibration energy of the ventilation fan during operation is effectively absorbed, blocking the transmission of vibration to the bottom plate and mine structure, and significantly reducing the risk of equipment fatigue damage.

[0016] 2. The left and right base plates are flexibly adjustable in spacing through pull-out inserts and screws. Combined with the interlocking design of the positioning groove and rectangular block, the overall stability of the base after it is anchored on the ground is ensured, and the loosening of parts caused by long-term vibration is avoided. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the external structure of a shock-absorbing device for a coal mine ventilation fan base proposed in this utility model;

[0019] Figure 2 This is a schematic diagram of the external disassembly structure of a shock-absorbing device for a coal mine ventilation fan base proposed in this utility model;

[0020] Figure 3 This is a three-dimensional disassembly diagram of the shock-absorbing part in a shock-absorbing device for a coal mine ventilation fan base proposed in this utility model.

[0021] Figure 4 This is a three-dimensional disassembly diagram of the reinforced part in the shock absorption device for the base of a coal mine ventilation fan proposed in this utility model;

[0022] Figure 5 This is a partial disassembly diagram of the reinforcement structure in the shock absorption device for the base of a coal mine ventilation fan proposed in this utility model.

[0023] In the diagram: 1. Fan base; 2. Vibration damping part; 21. Threaded post; 22. Locking cap; 23. Rubber cap; 24. Rubber base sleeve; 25. Vibration damping spring; 26. Thickened ring; 27. Top fixing ring; 3. Base plate; 4. Reinforcement part; 41. Left connecting plate; 42. Positioning screw; 43. Nut; 44. Insert plate; 45. Right connecting plate; 46. Screw assembly. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0025] Reference Figures 1-5 A shock-absorbing device for a coal mine ventilation fan base includes shock-absorbing parts 2 installed at the four corners of the bottom end of the ventilation fan base 1, with a base plate 3 connected below the shock-absorbing parts 2, and the two base plates 3 on the left and right sides being connected and fixed together by a reinforcement part 4.

[0026] The shock-absorbing part 2 includes a threaded post 21 inserted into the through hole of the fan base 1. The top of the threaded post 21 is threaded with a locking cap 22, and the bottom of the threaded post 21 is connected to a rubber base sleeve 24, and the bottom of the rubber base sleeve 24 is connected and fixed to the base plate 3.

[0027] The top of the threaded column 21 is fitted with a rubber cap 23, and the bottom of the rubber cap 23 is in contact with the top surface of the lock cap 22. The top of the rubber cap 23 has a curved dome design.

[0028] A shock-absorbing spring 25 is provided at the center of the inner wall of the rubber base sleeve 24, and an annular plate end design is provided at the bottom of the inner wall of the rubber base sleeve 24 near the position of the shock-absorbing spring 25.

[0029] A thickened ring 26 is connected to the inclined surface of the inner wall of the rubber base sleeve 24, and a top fixing ring 27 is connected to the top edge of the inner wall of the rubber base sleeve 24.

[0030] The reinforced part 4 includes a left connecting plate 41, and a plug plate 44 is connected to the right side of the left connecting plate 41. The plug plate 44 is inserted into the right connecting plate 45 through a through groove. The plug plate 44 and the right connecting plate 45 are fixed together by a screw assembly 46.

[0031] Both the left connecting plate 41 and the right connecting plate 45 have positioning screws 42 inserted into their sides through strip grooves, and the bottom end of the positioning screws 42 is fixed to the surface of the base plate 3, with a nut 43 threaded onto the top end of the positioning screws 42.

[0032] The bottom edges of the left connecting plate 41 and the right connecting plate 45 are provided with rectangular blocks, and the rectangular blocks are embedded in the surface of the base plate 3 through positioning grooves.

[0033] When the locking cap 22 is fitted onto the surface of the threaded post 21, and the rubber base sleeve 24 is connected and fixed to the fan base 1, after the locking cap 22 is locked, the rubber cap 23 can be fitted onto the top of the threaded post 21 to cover the threaded post 21, which can provide a certain degree of protection for the external threads of the threaded post 21. The rubber base sleeve 24 can buffer and relieve the vibration force generated by the operation of the fan base 1. At the same time, the inner wall of the rubber base sleeve 24 is supported by the shock-absorbing spring 25 to ensure the elastic expansion and contraction effect of the rubber base sleeve 24 and improve the rebound effect of the rubber base sleeve 24. The annular plate design at the bottom of the inner wall of the rubber base sleeve 24 can position the shock-absorbing spring 25 to prevent the bottom of the shock-absorbing spring 25 from being misaligned. The base plate 3 is pre-anchored to the ground and rigidly connected to the bottom of the rubber base sleeve 24 to form a vertical shock-absorbing core layer, which uses the elastic deformation of the rubber base sleeve 24 to initially absorb high-frequency vibration.

[0034] The thickened ring 26 can thicken the inclined surface of the rubber base sleeve 24, and the thickened ring 26 on the inclined inner wall improves the shear resistance and prevents the rubber base sleeve 24 from being easily damaged. The top of the inner wall of the rubber base sleeve 24 is connected to a top fixing ring 27, which can reinforce the top of the rubber base sleeve 24 and enhance the strength of the rubber base sleeve 24. The distance between the left connecting plate 41 and the right connecting plate 45 can be adjusted by pulling and moving the insert plate 44 in the through groove of the right connecting plate 45. After the insert plate 44 and the right connecting plate 45 are adjusted by pulling and moving, the screw group 46 is used to lock and fix them to ensure the stability of the connection between the insert plate 44 and the right connecting plate 45.

[0035] When both the left connecting plate 41 and the right connecting plate 45 are aligned with the base plate 3, the positioning screw 42 can pass through the strip grooves of the left connecting plate 41 and the right connecting plate 45, and be threaded onto the surface of the positioning screw 42 by the nut 43, thereby completing the connection and stability between the left connecting plate 41, the right connecting plate 45 and the two base plates 3. When the left connecting plate 41 and the right connecting plate 45 connect the left and right base plates 3, the rectangular blocks at the bottom of the left connecting plate 41 and the right connecting plate 45 can be embedded into the positioning grooves of the base plate 3, thereby realizing the installation and positioning of the left connecting plate 41 and the right connecting plate 45.

[0036] Working principle: According to Figure 3 and Figure 4 As shown, during installation, the threaded post 21 passes through the mounting hole at the corner of the fan base 1, so that the locking cap 22 is threaded onto the surface of the threaded post 21, so that the rubber base sleeve 24 is installed on the bottom surface of the fan base 1, so that the bottom plate 3 at the bottom of the rubber base sleeve 24 is placed on the ground surface at the pre-installation position, and is installed on the ground surface by anchor bolts or ground plugs, thereby completing the fixing.

[0037] Secondly, according to Figure 4 and Figure 5 As shown, the left connecting plate 41 and the right connecting plate 45 are pulled out relative to each other, so that the insert plate 44 moves in the through groove of the right connecting plate 45, so that the rectangular block ends of the left connecting plate 41 and the right connecting plate 45 are suspended above the positioning groove on the surface of the base plate 3. The left connecting plate 41 and the right connecting plate 45 are pressed down at the same time, so that the rectangular block ends of the left connecting plate 41 and the right connecting plate 45 are embedded and locked in the positioning groove of the base plate 3. At this time, the positioning screw 42 can pass through the through groove on the side of the left connecting plate 41 and be locked and fixed by the nut 43 threaded on the surface of the positioning screw 42. At the same time, the insert plate 44 and the right connecting plate 45 are connected and fixed by the screw group 46.

[0038] 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 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 claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A coal mine ventilator base shock absorbing device, characterized in that, It includes shock-absorbing parts (2) installed at the four corners of the bottom of the fan base (1), and a base plate (3) is connected to the bottom of the shock-absorbing parts (2). The two base plates (3) on the left and right are connected and fixed by a reinforcing part (4). The shock-absorbing part (2) includes a threaded post (21) inserted into the through hole of the fan base (1). The top of the threaded post (21) is threaded with a locking cap (22). The bottom of the threaded post (21) is connected to a rubber base sleeve (24), and the bottom of the rubber base sleeve (24) is connected and fixed to the base plate (3).

2. The coal mine ventilator base damping device according to claim 1, characterized in that, The top of the threaded column (21) is fitted with a rubber cap (23), and the bottom of the rubber cap (23) is in contact with the top surface of the lock cap (22). The top of the rubber cap (23) is designed as a curved dome.

3. The coal mine ventilator base shock absorbing device of claim 1, wherein, A shock-absorbing spring (25) is provided at the center of the inner wall of the rubber base sleeve (24), and an annular plate end design is provided at the bottom end of the inner wall of the rubber base sleeve (24) near the position of the shock-absorbing spring (25).

4. The coal mine ventilator base shock absorbing device of claim 3, wherein, A thickened ring (26) is connected to the inclined surface of the inner wall of the rubber base sleeve (24), and a top fixing ring (27) is connected to the top edge of the inner wall of the rubber base sleeve (24).

5. The coal mine ventilator base shock absorbing device of claim 1, wherein, The reinforced part (4) includes a left connecting plate (41), and a plug plate (44) is connected to the right side of the left connecting plate (41). The plug plate (44) is inserted into the right connecting plate (45) through a through groove. The plug plate (44) and the right connecting plate (45) are fixed together by a screw group (46).

6. The coal mine ventilator base shock absorbing device of claim 5, wherein, The left connecting plate (41) and the right connecting plate (45) are both fitted with positioning screws (42) through strip grooves on their sides, and the bottom end of the positioning screws (42) is fixed to the surface of the base plate (3). The top end of the positioning screws (42) is threaded with a nut (43).

7. The coal mine ventilator base shock absorbing device of claim 6, wherein, The bottom edges of the left connecting plate (41) and the right connecting plate (45) are provided with rectangular blocks, and the rectangular blocks are embedded in the surface of the base plate (3) through positioning grooves.

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