Electric hoist for fan

Abstract

The utility model discloses an electric hoist for a fan, which comprises a mounting rack and an electric hoist connected to the bottom of the mounting rack, a guide chain component is connected below a chain inlet of the electric hoist, two symmetrically arranged oil brushes are mounted in the bottom of the guide chain component, and the ends of the two oil brushes are in contact with a chain in the guide chain component. The other end of the oil brush penetrates through a through hole formed in the side wall of the bottom of the guide chain assembly and then is connected with the oil supply assembly, and the bottom of the guide chain assembly is arranged in the chain basket. The chain can be protected through the chain guide assembly and prevented from being directly blown by sea wind, oil can be applied to the chain for lubrication when the electric hoist is used through the oil brush and the oil supply assembly, and the service life of the chain and the service life of the electric hoist are greatly prolonged.

Description

Technical Field

[0001] This utility model relates to the field of electric hoist technology, and in particular to an electric hoist for a fan. Background Technology

[0002] A wind turbine is an electrical device that converts wind energy into mechanical work, which drives the rotor to rotate and ultimately outputs alternating current. A wind turbine generally consists of components such as a wind turbine, generator, deflector, tower, speed limiting safety mechanism, and energy storage device.

[0003] Currently, in the field of wind turbines, wind turbines are usually installed in high locations near the sea. Because the components of wind turbines are heavy, electric hoists are needed for hoisting.

[0004] The electric hoists used in wind turbines in coastal areas often experience chain rusting due to the high humidity and strong winds, which severely affects the lifespan of both the chain and the hoist itself. Utility Model Content

[0005] The purpose of this invention is to provide an electric hoist for fans to solve the above-mentioned problems.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] This utility model discloses an electric hoist for a fan, comprising a mounting frame and an electric hoist connected to the bottom of the mounting frame. A chain guide assembly is connected below the chain inlet of the electric hoist. Two symmetrically arranged oil brushes are installed in the bottom of the chain guide assembly. The ends of the two oil brushes are in contact with the chain inside the chain guide assembly. The other ends of the oil brushes pass through a through hole opened on the bottom side wall of the chain guide assembly and are connected to an oil supply assembly. The bottom of the chain guide assembly is placed in a chain basket.

[0008] Furthermore, the chain guide assembly includes a chain guide tube and a protective tube. The protective tube is sleeved and fixed on the outer wall of the chain guide tube. The top of the chain guide tube is connected to the bottom of the chain inlet of the electric hoist. The bottom of the chain guide tube is connected to the crossbar at the top of the chain basket. The bottom of the chain guide tube is flared and placed inside the chain basket.

[0009] Furthermore, the top of the chain guide tube is connected to the electric hoist via a connecting bracket.

[0010] Furthermore, a limit sensor is connected to the outer wall of the bottom flared end of the chain guide tube. The limit sensor is connected to the electric hoist via a cable, and the cable is fixed to the outer wall of the protective tube.

[0011] Furthermore, the cable is fixed to the outer wall of the protective tube by several clamping rings.

[0012] Furthermore, a baffle matching the limit sensor is connected to one end of the chain placed in the chain basket, and the diameter of the baffle is larger than the diameter of the flared opening at the bottom of the chain guide tube.

[0013] Furthermore, the bottom end of the guide tube is connected to the crossbeam at the top of the chain basket via a support frame, the bottom of the protective tube is connected to the support frame, the top of the support frame is connected to the tube wall at the bottom end of the guide tube, and the support frame is connected to the oil supply assembly.

[0014] Furthermore, the oil supply assembly includes a lubricating oil tank, a U-shaped bracket, and a mounting plate. The lubricating oil tank is connected to the crossbeam via the U-shaped bracket. The end of the oil brush is fixed to the mounting plate. The mounting plate is connected to the support frame. A solenoid valve is connected to the outlet pipe at the bottom of the lubricating oil tank. The bottom of the outlet pipe is connected to the end of the oil brush after passing through an opening in the mounting plate via an oil pipe.

[0015] Furthermore, a lifting ring for hoisting is installed on the top of the chain basket.

[0016] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0017] This invention can protect the chain through the chain guide assembly, preventing the chain from being directly blown by the sea breeze, and through the oil brush and oil supply assembly, it can lubricate the chain when using the electric hoist, greatly improving the service life of the chain and the electric hoist. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] Figure 1 This is a schematic diagram of the structure of the electric hoist for the fan of this utility model;

[0020] Figure 2 This is a front view of the electric hoist for fans according to this utility model;

[0021] Figure 3 This is a top view of the electric hoist for the fan of this utility model;

[0022] Figure 4 This is a side view of the electric hoist for the fan of this utility model;

[0023] Figure 5 Sectional view of the paint brush installation;

[0024] Explanation of reference numerals in the attached drawings: 1. Mounting bracket; 2. Electric hoist; 3. Oil brush; 4. Through hole; 5. Chain guide tube; 6. Connecting bracket; 7. Limit sensor; 8. Cable; 9. Hoop ring; 10. Chain basket; 11. Baffle; 12. Protective tube; 13. Horizontal frame; 14. Support frame; 15. Lubricating oil tank; 16. U-shaped bracket; 17. Mounting plate; 18. Oil pipe; 19. Lifting ring. Detailed Implementation

[0025] like Figure 1-5 As shown, an electric hoist for a fan includes a mounting frame 1 and an electric hoist 2 connected to the bottom of the mounting frame 1. A chain guide assembly is connected below the chain inlet of the electric hoist 2. Two symmetrically arranged oil brushes 3 are installed in the bottom of the chain guide assembly. The ends of the two oil brushes 3 are in contact with the chain in the chain guide assembly. The other end of the oil brushes 3 passes through a through hole 4 opened on the bottom side wall of the chain guide assembly and is connected to an oil supply assembly. The bottom of the chain guide assembly is placed in a chain basket 10. A lifting ring 19 for hoisting is installed on the top of the chain basket 10.

[0026] The chain guide assembly includes a chain guide tube 5 and a protective tube 12. The protective tube 12 is sleeved and fixed on the outer wall of the chain guide tube 5. The top of the chain guide tube 5 is connected to the lower part of the chain inlet of the electric hoist 2 through a connecting bracket 6. The bottom end of the chain guide tube 5 is connected to the crossbeam 13 on the top of the chain basket 10. The bottom of the chain guide tube 5 is flared and placed inside the chain basket 10. The through hole 4 is opened on the chain guide tube 5.

[0027] A limit sensor 7 is connected to the outer wall of the bottom flared end of the chain guide tube 5. The limit sensor 7 is connected to the electric hoist 2 via a cable 8. The cable 8 is fixed to the outer wall of the protective tube 12 via several clamping rings 9.

[0028] The chain is placed at one end of the chain basket 10 and connected to a baffle 11 that matches the limit sensor 7. The diameter of the baffle 11 is larger than the diameter of the flared opening at the bottom of the chain guide tube 5. The limit sensor 7 senses the position of the baffle 11 to prevent the baffle 11 from hitting the bottom of the chain guide tube 5.

[0029] The bottom end of the guide tube 5 is connected to the cross frame 13 at the top of the chain basket 10 via a support frame 14. The bottom of the protective tube 12 is connected to the support frame 14. The top of the support frame 14 is connected to the tube wall at the bottom end of the guide tube 5. The support frame 14 is connected to the oil supply assembly.

[0030] The oil supply assembly includes a lubricating oil tank 15, a U-shaped bracket 16, and a mounting plate 17. The lubricating oil tank 15 is connected to the cross frame 13 via the U-shaped bracket 16. The end of the oil brush 3 is fixed to the mounting plate 17. The mounting plate 17 is connected to the support frame 14. A solenoid valve is connected to the outlet pipe at the bottom of the lubricating oil tank 15. The bottom of the outlet pipe is connected to the end of the oil brush 3 after passing through an opening in the mounting plate 17 via an oil pipe 18.

[0031] When the electric hoist 2 is in use, the solenoid valve at the bottom of the lubricating oil tank 15 is opened, and the lubricating oil is sent to the oil brush 3 through the oil pipe 18, so that the oil brush 3 is covered with lubricating oil. The chain in the chain frame 10 is conveyed upward, and the oil brush 3 applies lubricating oil to the chain, making the electric hoist work more smoothly and improving its service life.

[0032] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. An electric hoist for a fan, characterized by: The device includes a mounting frame (1) and an electric hoist (2) connected to the bottom of the mounting frame (1). A chain guide assembly is connected below the chain inlet of the electric hoist (2). Two symmetrically arranged oil brushes (3) are installed in the bottom of the chain guide assembly. The ends of the two oil brushes (3) are in contact with the chain in the chain guide assembly. The other end of the oil brushes (3) passes through a through hole (4) opened on the bottom side wall of the chain guide assembly and is connected to the oil supply assembly. The bottom of the chain guide assembly is placed in the chain basket (10).

2. The motorised pulley for a fan according to claim 1, characterised in that: The chain guide assembly includes a chain guide tube (5) and a protective tube (12). The protective tube (12) is sleeved and fixed on the outer wall of the chain guide tube (5). The top of the chain guide tube (5) is connected to the bottom of the chain inlet of the electric hoist (2). The bottom of the chain guide tube (5) is connected to the crossbar (13) at the top of the chain basket (10). The bottom of the chain guide tube (5) is flared and placed inside the chain basket (10).

3. The motorised pulley for a fan according to claim 2, characterised in that: The top of the chain guide tube (5) is connected to the electric hoist (2) via a connecting frame (6).

4. The motorised pulley for a fan according to claim 2, characterised in that: A limit sensor (7) is connected to the outer wall of the bottom flared end of the chain guide tube (5). The limit sensor (7) is connected to the electric hoist (2) via a cable (8). The cable (8) is fixed to the outer wall of the protective tube (12).

5. The electric hoist for a fan according to claim 4, characterized in that: The cable (8) is fixed to the outer wall of the protective tube (12) by several clamping rings (9).

6. The motorised pulley for a fan according to claim 5, characterised in that: The chain is placed on one end of the chain basket (10) and connected to a baffle (11) that matches the limit sensor (7). The diameter of the baffle (11) is larger than the diameter of the flared opening at the bottom of the chain guide tube (5).

7. The motorised pulley for a fan according to claim 2, characterised in that: The bottom end of the guide tube (5) is connected to the cross frame (13) at the top of the chain basket (10) via a support frame (14). The bottom of the protective tube (12) is connected to the support frame (14). The top of the support frame (14) is connected to the tube wall at the bottom end of the guide tube (5). The support frame (14) is connected to the oil supply assembly.

8. The motorised pulley for a fan according to claim 7, characterised in that: The oil supply assembly includes a lubricating oil tank (15), a U-shaped bracket (16), and a mounting plate (17). The lubricating oil tank (15) is connected to the cross frame (13) through the U-shaped bracket (16). The end of the oil brush (3) is fixed on the mounting plate (17). The mounting plate (17) is connected to the support frame (14). A solenoid valve is connected to the outlet pipe at the bottom of the lubricating oil tank (15). The bottom of the outlet pipe passes through an oil pipe (18) through a through hole opened on the mounting plate (17) and is connected to the end of the oil brush (3).

9. The motorised pulley for a fan according to claim 1, characterised in that: The top of the chain basket (10) is equipped with a lifting ring (19) for hoisting.

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