High explosion-proof electric hoist using explosion-proof steel wire rope

Abstract

The utility model discloses a high-explosion-proof electric hoist using an explosion-proof steel wire rope, and relates to the technical field of electric hoists. The steel wire rope cooling device comprises an electric hoist shell and a cooling mechanism, the cooling mechanism comprises an oil storage tank, a temperature sensor and an oil pipe are arranged, real-time monitoring and automatic lubrication of the temperature of a steel wire rope are achieved, the surface temperature of the steel wire rope rises to a preset threshold value due to long-time use, high-load operation or environmental factors, and the steel wire rope is cooled. The lubricating system can be automatically started to spray lubricating oil on the steel wire rope, so that the friction force between the steel wire rope and the winding roller and other parts can be effectively reduced, the load of the motor is obviously reduced, the energy consumption and abrasion of the motor are reduced, and the temperature rise caused by overhigh heat of the motor and long-time operation of the differential mechanism, the shell and the explosion-proof motor is avoided; the cooling system conveys cooling water to the outer surfaces of the components, faults or potential safety hazards caused by too high temperature are prevented, and the overall safety and reliability of the electric hoist are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric hoists, in particular to a high-explosion-proof electric hoist using explosion-proof steel wire ropes. Background Technique

[0002] As a special lifting equipment, an electric hoist is usually installed on an overhead crane or a gantry crane. With its characteristics of small volume, light self-weight, simple operation, and convenient use, it is widely used in industrial and mining enterprises, warehousing, docks and other places for lifting and moving goods. For existing explosion-proof electric hoists, after long-term operation in outdoor environments, the lubricant on the surface of the steel wire rope dries and volatilizes, resulting in a lack of lubrication for the steel wire rope, thereby increasing the friction of the steel wire rope and the load on the motor. In order to achieve the explosion-proof effect, the motor is sealed, resulting in poor heat dissipation. It is difficult to quickly and effectively dissipate the heat generated by the motor, and the overheating of the motor is likely to cause an explosion, posing a danger. Content of the Utility Model

[0003] Based on this, the purpose of the utility model is to provide a high-explosion-proof electric hoist using explosion-proof steel wire ropes to solve the technical problems that the friction of the steel wire rope increases due to lack of lubrication, the load on the motor increases, and the poor heat dissipation of the motor leads to overheating and easy explosion.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A high-explosion-proof electric hoist using explosion-proof steel wire ropes, including an electric hoist housing and a cooling mechanism. The cooling mechanism includes an oil storage tank, a fuel pipe is arranged at the bottom of the oil storage tank, a spray head is arranged at the bottom of the fuel pipe, and a temperature sensor is arranged on one side of the fuel pipe;

[0005] A water tank is arranged on one side of the oil storage tank, a water pump is arranged on one side of the water tank, a water pipe is connected to one side of the water pump, and liquid injection ports are arranged on the tops of the oil storage tank and the water tank.

[0006] By adopting the above technical solution, being arranged on the tops of the oil storage tank and the water tank is convenient for operators to supplement or replace the cooling medium, ensuring the continuous operation of the cooling system.

[0007] Further, a plurality of spray heads are provided, and the plurality of spray heads are arranged at equal intervals in a linear array.

[0008] By adopting the above technical solution, the spray heads arranged at equal intervals in a linear array can ensure a uniform spraying effect on the steel wire rope.

[0009] Further, an explosion-proof motor is arranged on one side of the electric hoist housing, and heat dissipation fins are arranged on the outer surface of the explosion-proof motor.

[0010] By adopting the above technical solution, the heat dissipation fin plate improves the heat dissipation efficiency of the explosion-proof motor by increasing the surface area, effectively reduces the temperature rise of the motor, and ensures the stable operation of the motor.

[0011] Further, a differential is provided on the other side of the electric hoist housing, a wire winding roller is provided inside the electric hoist housing, and a steel wire rope is provided on the outer surface of the wire winding roller.

[0012] By adopting the above technical solution, the differential plays a role in balancing the rotational speeds of the driving wheels on both sides in the electric hoist, ensuring that the electric hoist can maintain stability, reduce vibration and shaking when running on an uneven or inclined track, thereby improving the running stability.

[0013] Further, a hook is provided at one end of the steel wire rope, and a wire rope guide is provided on the outer surface of the electric hoist housing.

[0014] By adopting the above technical solution, the hook, as a key component connecting the electric hoist and the load, can bear heavy objects within the rated range.

[0015] Further, a fixing frame is provided at the top of the electric hoist housing, an electric hoist carriage is provided at the top of the fixing frame, and a carriage motor is provided on one side of the electric hoist carriage.

[0016] By adopting the above technical solution, the fixing frame is installed at the top of the electric hoist housing, providing a stable support platform for the electric hoist carriage.

[0017] Further, there are two electric hoist carriages, and the two electric hoist carriages are symmetrically arranged along the central axis of the electric hoist housing.

[0018] By adopting the above technical solution, the two electric hoist carriages are symmetrically arranged along the central axis, enabling the electric hoist to maintain better balance during operation.

[0019] Further, the model of the temperature sensor is FT-H20.

[0020] By adopting the above technical solution, the FT-H20 type temperature sensor has high-precision measurement ability and can accurately sense the temperature change of the steel wire rope in the electric hoist.

[0021] In summary, the present utility model mainly has the following beneficial effects:

[0022] 1. The utility model realizes the real-time monitoring and automatic lubrication of the steel wire rope by setting a temperature sensor and an oil pipe. When the surface temperature of the steel wire rope rises to a preset threshold due to long-term use, high-load operation or environmental factors, the lubrication system will automatically start, spraying lubricating oil on the steel wire rope to form a uniform lubricating film. This can not only effectively reduce the friction between the steel wire rope and components such as the winding roller, but also reduce wear, thus significantly reducing the load on the motor, lowering the energy consumption and wear of the motor, and avoiding excessive heat of the motor.

[0023] 2. The utility model sets a temperature sensor, a water pipe, a differential, a housing and an explosion-proof motor. When these components operate for a long time and the temperature rises, the cooling system transports cooling water to the outer surfaces of these components for effective cooling, preventing failures or safety hazards caused by excessive temperature, and further improving the overall safety and reliability of the electric hoist. The heat dissipation fins improve the heat dissipation efficiency of the explosion-proof motor by increasing the surface area, and can cooperate with the water pipe to cool the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic plan view of the utility model;

[0025] Figure 2 is a schematic top view of the utility model;

[0026] Figure 3 is a schematic partial cross-sectional view of the utility model;

[0027] Figure 4 is a schematic three-dimensional view of the utility model.

[0028] In the figure: 1. Electric hoist housing; 2. Differential; 3. Cooling mechanism; 301. Oil storage tank; 302. Water tank; 303. Liquid injection port; 304. Water pump; 305. Water pipe; 306. Oil pipe; 307. Nozzle; 308. Temperature sensor; 4. Hook; 5. Rope guide; 6. Explosion-proof motor; 7. Heat dissipation fins; 8. Fixed frame; 9. Trolley motor; 10. Electric hoist trolley; 11. Steel wire rope; 12. Winding roller. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present utility model, and should not be construed as limiting the present utility model.

[0030] Next, the embodiments of the present utility model will be described according to the overall structure of the present utility model.

[0031] Embodiment 1:

[0032] A highly explosion-proof electric hoist using explosion-proof steel wire ropes, as Figures 1-4 shown, includes an electric hoist housing 1 and a cooling mechanism 3. The cooling mechanism 3 includes an oil storage tank 301. A fuel pipe 306 is provided at the bottom of the oil storage tank 301. A nozzle 307 is provided at the bottom of the fuel pipe 306. A temperature sensor 308 is provided on one side of the fuel pipe 306;

[0033] A water tank 302 is provided on one side of the oil storage tank 301. A water pump 304 is provided on one side of the water tank 302. A water pipe 305 is connected to one side of the water pump 304. Liquid injection ports 303 are provided at the tops of both the oil storage tank 301 and the water tank 302. Being provided at the tops of the oil storage tank 301 and the water tank 302 facilitates the operator to supplement or replace the cooling medium, ensuring the continuous operation of the cooling system. The water pump 304 provides power to transport the cooling water in the water tank 302 to the components that need to be cooled through the water pipe 305, achieving water cooling.

[0034] Refer to Figure 3 , several nozzles 307 are provided. The several nozzles 307 are evenly arranged at equal intervals in a linear array. The nozzles 307 arranged in a linear array at equal intervals can ensure that the steel wire rope 11 obtains a uniform spraying effect. The nozzles 307 spray the lubricating oil onto the components that need to be cooled in a mist or fine stream state, ensuring the stable operation of the electric hoist in a high-temperature environment.

[0035] Embodiment 2:

[0036] Refer to Figure 1 , an explosion-proof motor 6 is provided on one side of the electric hoist housing 1. Heat dissipation fins 7 are provided on the outer surface of the explosion-proof motor 6. By increasing the surface area, the heat dissipation efficiency of the explosion-proof motor is improved, effectively reducing the temperature rise of the motor and ensuring the stable operation of the motor. The heat dissipation fins 7 help prevent the motor from overheating and avoid motor damage or performance degradation caused by high temperature.

[0037] Refer to Figure 1 、 Figure 3 , a differential 2 is provided on the other side of the electric hoist housing 1. A wire winding roller 12 is provided inside the electric hoist housing 1. A steel wire rope 11 is provided on the outer surface of the wire winding roller 12. The differential 2 plays a role in balancing the rotational speeds of the driving wheels on both sides in the electric hoist, ensuring that the electric hoist can maintain stability when running on an uneven or inclined track, reducing vibration and shaking, thereby improving the running stability. The wire winding roller 12 is a storage and release mechanism for the steel wire rope 11, enabling the steel wire rope 11 to be neatly and orderly wound on the roller, avoiding phenomena such as rope entanglement and derailment, and ensuring the safe operation of the electric hoist.

[0038] Refer to Figure 1, one end of the wire rope 11 is provided with a hook 4, and a wire rope guide 5 is arranged on the outer surface of the electric hoist housing 1. As a key component connecting the electric hoist and the load, the hook 4 can bear heavy objects within the rated range. The main function of the wire rope guide 5 is to guide the wire rope 11 to be neatly arranged on the winding roller 12, preventing phenomena such as the wire rope 11 getting tangled or jumping out during the winding process.

[0039] Refer to Figure 1 , Figure 2 , a fixing frame 8 is arranged on the top of the electric hoist housing 1, an electric hoist carriage 10 is arranged on the top of the fixing frame 8, a carriage motor 9 is arranged on one side of the electric hoist carriage 10. The fixing frame 8 is installed on the top of the electric hoist housing 1, providing a stable support platform for the electric hoist carriage 10. The carriage motor 9 is the power source for driving the movement of the electric hoist carriage 10, and its performance directly affects the movement speed and efficiency of the electric hoist carriage 10.

[0040] Refer to Figure 1 , there are two electric hoist carriages 10, and the two electric hoist carriages 10 are symmetrically arranged along the central axis of the electric hoist housing 1. The two electric hoist carriages 10 are symmetrically arranged along the central axis, enabling the electric hoist to maintain better balance during operation. The electric hoist carriage 10 enables the electric hoist to move flexibly along a predetermined track.

[0041] Refer to Figure 3 , the model of the temperature sensor 308 is FT-H20. The FT-H20 type temperature sensor 308 has high-precision measurement ability and can accurately sense the temperature change of the wire rope 11 in the electric hoist. The FT-H20 type temperature sensor 308 has strong environmental adaptability and can operate stably in harsh working environments.

[0042] The implementation principle of the present utility model is as follows: First, when the electric hoist is used outdoors for a long time, when the temperature sensor 308 detects that the temperature of the wire rope 11 rises to the threshold value, it controls the oil pump inside the oil storage tank 301 through an electric signal to make the lubricating oil spray out from the nozzle 307 through the oil pipe 306 to lubricate the wire rope 11; at the same time, it drives the water pump 304 to make the cooling water inside the water tank 302 cool the differential 2, the electric hoist housing 1 and the explosion-proof motor 6 through the water pipe 305.

[0043] Parts not involved in the present utility model are the same as or can be implemented by using the prior art, and will not be elaborated here.

[0044] Although embodiments of the present utility model have been shown and described, the specific embodiments are only explanations of the present utility model and not limitations thereof. The specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art can make modifications, substitutions and variations that do not make creative contributions to the embodiments as needed, but as long as they are within the scope of the claims of the present utility model, they are protected by the patent law.

Claims

1. A high explosion-proof electric hoist using explosion-proof steel wire rope, characterized in that: The electric hoist comprises an outer shell (1) and a cooling mechanism (3), wherein the cooling mechanism (3) comprises an oil storage tank (301), an oil pipe (306) is arranged at the bottom of the oil storage tank (301), a nozzle (307) is arranged at the bottom of the oil pipe (306), and a temperature sensor (308) is arranged on one side of the oil pipe (306); A water tank (302) is provided on one side of the oil storage tank (301), a water pump (304) is provided on one side of the water tank (302), a water pipe (305) is connected to one side of the water pump (304), and a liquid injection port (303) is provided on the top of both the oil storage tank (301) and the water tank (302).

2. The high explosion-proof electric hoist using explosion-proof steel wire rope according to claim 1 is characterized in that: A plurality of the nozzles (307) are provided, and the nozzles (307) are evenly arranged at equal distances in a linear array.

3. The high explosion-proof electric hoist using explosion-proof steel wire rope according to claim 1 is characterized in that: An explosion-proof motor (6) is provided on one side of the electric hoist housing (1), and a heat dissipation fin plate (7) is provided on the outer surface of the explosion-proof motor (6).

4. The high explosion-proof electric hoist using explosion-proof steel wire rope according to claim 1 is characterized in that: A differential (2) is provided on the other side of the electric hoist housing (1), a winding roller (12) is provided inside the electric hoist housing (1), and a steel wire rope (11) is provided on the outer surface of the winding roller (12).

5. The high explosion-proof electric hoist using explosion-proof steel wire rope according to claim 4 is characterized in that: A hook (4) is provided at one end of the steel wire rope (11), and a rope guide (5) is provided on the outer surface of the electric hoist housing (1).

6. The high explosion-proof electric hoist using explosion-proof steel wire rope according to claim 1 is characterized in that: A fixing frame (8) is arranged on the top of the electric hoist housing (1), an electric hoist sports car (10) is arranged on the top of the fixing frame (8), and a sports car motor (9) is arranged on one side of the electric hoist sports car (10).

7. The high explosion-proof electric hoist using explosion-proof steel wire rope according to claim 6 is characterized in that: Two electric hoist sports cars (10) are provided, and two of the two electric hoist sports cars (10) are symmetrically provided along the central axis of the electric hoist housing (1).

8. The high explosion-proof electric hoist using explosion-proof steel wire rope according to claim 1 is characterized in that: The model of the temperature sensor (308) is FT-H20.

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