Lubrication protection device of crown block wheel

Abstract

The utility model discloses a lubrication protection device for wheels of a crown block, belongs to the technical field of crown block protection, and solves the problems that the rail gnawing phenomenon of the crown block is easily caused after the existing crown block is lack of lubrication during operation, and the normal operation of the crown block is influenced. The crown block wheels are installed below the crown block girder, the oil supply system is installed on the crown block girder, an oil pump of the oil supply system is connected with a main oil pipe, and the main oil pipe is connected with two branch oil pipes through an oil pipe tee joint. The oil brushes are installed at the tail ends of the branch oil pipes through the oil pipe connectors, and the two oil brushes make contact with the surfaces of rims on the two sides of the crown block wheel. The rail gnawing prevention device is simple in structure and stable in operation, effectively avoids the rail gnawing phenomenon of the crown block caused by insufficient lubrication, reduces dangerous factors, and enables the crown block to operate more smoothly.

Description

Technical Field

[0001] This utility model belongs to the field of overhead crane protection technology, specifically relating to a lubrication protection device for overhead crane wheels. Background Technology

[0002] During normal operation, the wheel flanges of an overhead crane should maintain a certain clearance from the rails. When the wheels deviate during prolonged operation, causing friction between the wheel flanges and the side of the rails, a phenomenon known as "rail biting" occurs. Rail biting is extremely dangerous. Measurements show that the running resistance of a severely bitten overhead crane is 1.5 to 3.5 times that of its normal operation. This increased resistance causes the motor and transmission mechanism to operate under overload, potentially burning out the motor, breaking the drive shaft, or accelerating wear on the reducer. Furthermore, rail biting inevitably generates horizontal lateral forces, leading to lateral displacement of the rails and loosening of the bolts securing the rails. It also causes severe vibrations throughout the crane, wears steps into the rails, and can even render the rails unusable. In severe cases, when the gap at the rail joints is large, the wheels may climb onto the top of the rail, causing a derailment.

[0003] Currently, lubrication is one of the important measures to solve the problem of overhead crane rail wear. Lubrication can reduce friction and wear. Lubricant can form a protective film between the wheel flange and the side of the rail, reducing direct metal contact, reducing wear, and extending the service life of the wheel and rail. At the same time, it can reduce friction between the wheel and the rail, reduce the resistance generated by rail wear, and make the overhead crane run more smoothly. Utility Model Content

[0004] This utility model provides a lubrication protection device for overhead crane wheels to solve the problem that insufficient lubrication during operation of existing overhead cranes can easily cause rail wear, affecting the normal operation of the overhead crane.

[0005] The technical solution of this utility model is: a lubrication and protection device for a crane wheel, wherein the crane wheel is installed below the crane beam, and includes an oil supply system and oil brushes. The oil supply system is installed on the crane beam, and the oil pump of the oil supply system is connected to a main oil pipe. The main oil pipe is connected to two branch oil pipes through an oil pipe tee. The oil brushes are installed at the ends of the branch oil pipes through oil pipe joints, and the two oil brushes are in contact with the wheel flange surfaces on both sides of the crane wheel.

[0006] As a further improvement of this utility model, the oil pipe tee is mounted on the mounting plate, and the mounting plate is mounted on the lower end of the overhead crane beam.

[0007] As a further improvement of this utility model, multiple horizontal elongated holes are symmetrically provided on both sides of the mounting plate. An adjustment frame is connected to the horizontal elongated hole by bolts, and an adjustment seat is connected to the bottom of the adjustment frame by bolts. The oil pipe joint is fixed on the adjustment seat.

[0008] As a further improvement of this utility model, the adjustment frame is provided with a vertical elongated hole, and bolts are passed through the vertical elongated hole and the horizontal elongated hole in sequence to fix the adjustment frame to the mounting plate.

[0009] As a further improvement of this utility model, it also includes an adjusting seat, the side of which is connected to the bottom of the adjusting frame by bolts, and the oil pipe joint is fixed on the adjusting seat.

[0010] As a further improvement of this utility model, the oil supply system is an electromagnetic pulse pump oil supply system.

[0011] As a further improvement of this utility model, a time relay is provided at the pump inlet of the oil supply system.

[0012] The beneficial effects of this invention are as follows: This invention supplies lubricating oil to a fixed oil brush via an oil supply system. The oil brush evenly coats the lubricating oil onto the inner side of the wheel flange, creating an oil film between the inner side of the wheel flange and the outer edge of the track. This prevents direct friction between the wheel flange and the track, making it less prone to rail wear during crane operation. This invention also allows for easy adjustment of the oil brush via an adjusting frame and adjusting seat, ensuring close contact with the wheel flange. Furthermore, a time relay is installed in the oil supply system. By setting the operating time, it prevents excessive oil from being delivered to the inner side of the wheel flange during prolonged crane operation, thus avoiding oil accumulation on the wheel tread and causing wheel slippage. This invention has a simple structure, stable operation, effectively avoids rail wear caused by insufficient lubrication, reduces safety risks, and makes crane operation smoother. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the installation of this utility model with an overhead crane.

[0015] In the diagram: 1. Oil supply system; 2. Main oil pipe; 3. Overhead crane beam; 7. Overhead crane wheels; 9. Oil pipe tee; 10. Branch oil pipe; 12. Mounting plate; 13. Adjusting frame; 14. Oil pipe joint; 16. Adjusting seat; 18. Oil brush. Detailed Implementation

[0016] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0017] like Figure 1-2 As shown, a lubrication and protection device for a crane wheel is provided, wherein the crane wheel 7 is installed below the crane beam 3. Its features include:

[0018] A lubrication and protection device for a crane wheel includes an oil supply system 1 and oil brushes 18. The oil supply system 1 is installed on the crane beam 3. The oil pump of the oil supply system 1 is connected to a main oil pipe 2. The main oil pipe 2 is connected to two branch oil pipes 10 through an oil pipe tee 9. The oil brushes 18 are installed at the ends of the branch oil pipes 10 through oil pipe joints 14. The two oil brushes 18 are in contact with the wheel flange surfaces on both sides of the crane wheel 7.

[0019] The oil pipe tee 9 is installed on the mounting plate 12, which is installed at the lower end of the overhead crane beam 3.

[0020] The mounting plate 3 has multiple horizontal elongated holes 11 symmetrically arranged on both sides. An adjustment bracket 13 is connected to the horizontal elongated hole 11 by bolts. An adjustment seat 16 is connected to the bottom of the adjustment bracket 13 by bolts. The oil pipe joint 14 is fixed on the adjustment seat 16.

[0021] The adjustment frame 13 is provided with a vertical elongated hole 8. Bolts pass through the vertical elongated hole 8 and the horizontal elongated hole 11 in sequence to fix the adjustment frame 13 to the mounting plate 12.

[0022] Oil supply system 1 is an electromagnetic pulse pump oil supply system.

[0023] A time relay is installed at the pump inlet of oil supply system 1.

[0024] In use, the controller of the electromagnetic pulse pump of the oil supply system 1 needs to be connected in series with the electro-hydraulic actuator of the crane's traveling brake. When the crane is running and the main brake is open, the electromagnetic pulse pump receives a signal, is energized, and controls the oil supply system 1 to supply oil. The time relay operates to control the output of the oil supply. The lubricating oil is transported to the oil pipe joint 14 through the main oil pipe 2 and the branch oil pipe 9, and finally supplies oil to the oil brush 18. If the wheel rail of the crane wheel 7 cannot be properly coated with lubricating oil, the opening of the adjusting frame 13 can be adjusted so that the outer sides of the two points of the lubricating oil brush 18 are in contact with the wheel rail. After adjusting the opening on the inner side of the wheel flange 8, adjust the lubrication angle of the oil brush 18 through the adjusting seat 16 to 45° outward in the vertical direction. The contact area between the oil brush and the inner side of the wheel flange should be 10mm. Finally, tighten all screws to keep the oil brush 18 stationary during operation. The rotation of the wheel will apply the lubricating oil to the inner side of the wheel flange. During operation, the wheel will spread the lubricating oil to the side of the track, creating an oil film between the wheel and the track side to alleviate the defect of the wheel directly biting the rail. After the crane is powered on, the oil supply frequency is set by observing the amount of oil applied to the inner side of the wheel flange 8.

Claims

1. A lubrication and protection device for a crane wheel, wherein the crane wheel (7) is installed below the crane beam (3), characterized in that: It includes an oil supply system (1) and oil brushes (18). The oil supply system (1) is installed on the overhead crane beam (3). The oil pump of the oil supply system (1) is connected to a main oil pipe (2). The main oil pipe (2) is connected to two branch oil pipes (10) through an oil pipe tee (9). The oil brushes (18) are installed at the end of the branch oil pipes (10) through an oil pipe joint (14). The two oil brushes (18) are in contact with the wheel flange surfaces on both sides of the overhead crane wheel (7).

2. The lubrication protection device for a crane wheel according to claim 1, characterized in that: The oil pipe tee (9) is installed on the mounting plate (12), which is installed at the lower end of the overhead crane beam (3).

3. The lubrication protection device for a crane wheel according to claim 2, characterized in that: The mounting plate (12) has multiple horizontal elongated holes (11) symmetrically arranged on both sides. An adjustment frame (13) is connected to the horizontal elongated hole (11) by bolts. An adjustment seat (16) is connected to the bottom of the adjustment frame (13) by bolts. The oil pipe joint (14) is fixed on the adjustment seat (16).

4. The lubrication protection device for a crane wheel according to claim 3, characterized in that: The adjustment frame (13) is provided with a vertical elongated hole (8), and bolts are passed through the vertical elongated hole (8) and the horizontal elongated hole (11) in sequence to fix the adjustment frame (13) to the mounting plate (12).

5. A lubrication protection device for a crane wheel according to any one of claims 1-4, characterized in that: The oil supply system (1) is an electromagnetic pulse pump oil supply system.

6. The lubrication protection device for a crane wheel according to claim 5, characterized in that: The oil supply system (1) is equipped with a time relay at the pump inlet.

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