A protective cover for preventing high speed shaft coupling from throwing out lubricating oil

Abstract

The utility model provides a guard shield that prevents high speed shaft coupling from throwing lubricating oil, belongs to crane high speed shaft coupling equipment technical field, is used for collecting the lubricating oil that crane high speed shaft coupling throws, technical scheme is: support is cuboid frame, support places the below high speed shaft coupling, the upper end opening of support is opposite with high speed shaft coupling, the cover body is cylinder, the cylinder of cover body is installed outside high speed shaft coupling, the lower part of cylinder of cover body is rectangle opening, the both sides of rectangle opening are located in the upper end opening of support respectively, the oil receiving box is rectangle box body, the oil receiving box places in the support, the four walls of oil receiving box are connected with the four walls of support, and the upper end surface of oil receiving box is open and opposite with cover body lower part opening, the utility model discloses simple structure, convenient to use can effectively with high speed shaft coupling splash oil dirt shelter collection to the oil receiving box in, avoid environmental pollution and personnel slip risk, can use on crane and various high speed shaft couplings.

Description

Technical Field

[0001] This utility model relates to a protective cover for collecting lubricating oil thrown out by a crane's high-speed shaft coupling during high-speed rotation, belonging to the technical field of crane high-speed shaft coupling equipment. Background Technology

[0002] The hoisting and traveling mechanisms of a crane both require motor drive. The motor output shaft is connected to the high-speed shafts of components such as the reducer by a gear coupling and a brake wheel coupling. During the operation of the crane's high-speed shaft couplings, it was found that oil contamination easily occurs at the lower part of some couplings. This oil contamination is mainly splashed out from the mating surface of the outer gear sleeve and the inner gear ring. When the equipment is running, the coupling rotates at high speed, and the lubricating oil is subjected to centrifugal force, gradually splashing onto the base platform and surrounding walls.

[0003] The reasons why lubricating oil is thrown out of the high-speed shaft coupling of the crane are as follows: First, during assembly, a certain amount of axial movement is necessary for the coupling. This movement varies depending on the model of the gear coupling, generally ranging from 3mm to 5mm. This results in a certain amount of axial movement between the internal and external gear rings during crane operation. If there is even a slight excess of lithium-based grease inside the coupling, it will be ejected, and the centrifugal force will cause oil to splash onto the base and surrounding area. Second, during crane use, wear on the internal gear ring seal can easily lead to poor sealing performance, making it difficult to replace the oil seal during maintenance of high-speed shaft couplings. Third, during maintenance, if too much lubricating oil is added, it will be squeezed out at the mating surface during the assembly of the internal gear ring and the brake wheel.

[0004] Currently, some crane high-speed shaft couplings use mesh protective covers, and the coverage area and height of the protective covers are relatively small. The oil spillage from the outer gear sleeve and inner gear ring during their rotation is basically unprotected and uncollected, which cannot meet the requirements for online use, pollutes the environment, and easily causes the risk of personnel slipping and falling.

[0005] Therefore, it is essential to manufacture effective protective covers for high-speed shaft couplings to prevent the oil spilled out from polluting the environment. Utility Model Content

[0006] The technical problem to be solved by this utility model is to provide a protective cover to prevent lubricating oil from being thrown out of a high-speed shaft coupling. This protective cover can effectively prevent lubricating oil from being thrown out and causing oil stains around the equipment, avoid personnel slipping and falling accidents, protect the environment, and reduce cleaning work.

[0007] The technical solution to the above technical problem is: A protective cover for preventing lubricating oil from being thrown out of a high-speed shaft coupling includes a bracket, a cover body, and an oil receiving box. The bracket is a cuboid frame and is fixed to the bottom of the shaft coupling by fixing points. The arc of the bracket is opposite to the shaft coupling. The cover body is a cylindrical body and is fixed to the bracket. The lower half of the cylindrical body of the cover body is open. The bracket passes through half of the cylindrical wall, so that the upper half of the cover body is outside the bracket and the lower half of the cover body is inside the bracket and open. The open part of the cover body extends into the baffles on both sides of the oil receiving box.

[0008] The aforementioned protective cover that prevents high-speed shaft couplings from throwing out lubricating oil has a bracket made of steel bars welded into a rectangular frame. The lower four corners of the bracket are respectively fixed to the ground steel structure by fixing points.

[0009] The aforementioned protective cover for preventing high-speed shaft couplings from throwing out lubricating oil has protective edges on the inner edges of both ends of the cover. The protective edges are annular plates along the circumference of the cover, and the upper ends of the protective edges are vertically welded to the inner wall of the cover.

[0010] The aforementioned protective cover for preventing high-speed shaft couplings from throwing out lubricating oil has an observation window on the upper part of the cover, and one side of the observation window cover is fixed with a pin.

[0011] The aforementioned protective cover for preventing high-speed shaft couplings from throwing out lubricating oil has an oil receiving box with its bottom surface tilted to one side and its front and rear ends tilted at the same time.

[0012] The beneficial effects of this utility model are: The bracket of this utility model is placed below the high-speed shaft coupling, and the cover is fitted around the outer periphery of the high-speed shaft coupling. The cover can block the lubricating oil thrown out by the high-speed shaft coupling and prevent the lubricating oil from spilling onto the ground. Annular guards are welded to both ends of the cover to prevent the lubricating oil from flowing out of the inner wall of the cover. The lower two sides of the cover are located inside the bracket, which can guide the lubricating oil collected on the inner wall of the cover downwards into the oil receiving box. The cover of the observation window on the top of the cover can be opened to observe the status of the high-speed shaft coupling. The bottom of the oil receiving box is tilted to one side and one end, allowing the oil to fall into the oil receiving box.

[0013] This utility model has a simple structure and is easy to use. It can effectively block and collect splashed oil from high-speed shaft couplings into the oil collection box, avoiding environmental pollution and the risk of personnel slipping and falling. It can be used on cranes and various high-speed shaft couplings. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the oil slinging position of the high-speed shaft coupling.

[0015] The markings in the diagram are as follows: 1. Cover body; 2. Edge guard; 3. Coupling oil-slipping position; 4. Gear coupling; 5. Bracket; 6. Observation window; 7. Oil collection box; 8. Fixing point. Detailed Implementation

[0016] This utility model mainly consists of a cover 1, a bracket 5, and an oil collection box 7.

[0017] As shown in the figure, the bracket 5 is a rectangular frame welded from steel bars. The bracket 5 is placed below the high-speed shaft coupling 4, with the upper opening of the bracket 5 facing the high-speed shaft coupling 4. The four lower corners of the bracket 5 are fixedly connected to the ground through fixing points 8. The bracket 5 is used to support the cover 1 of the protective cover and to install the oil receiving box 7.

[0018] As shown in the diagram, the cover 1 is a cylindrical body, which is fitted onto the outside of the high-speed shaft coupling 4. The lower part of the cover 1 is connected to the upper opening of the bracket 5 by bolts. The cover 1, fitted around the outer periphery of the high-speed shaft coupling 4, can block the lubricating oil thrown out by the high-speed shaft coupling 4, preventing lubricating oil from spilling onto the ground. The lower part of the cylindrical cover 1 has a rectangular opening, with both sides of the rectangular opening located inside the upper opening of the bracket 5. The two sides of the lower end of the cover 1 are located inside the two sides of the bracket 5, which can guide the lubricating oil collected on the inner wall of the cover 1 downwards into the oil receiving box 7.

[0019] As shown in the figure, there are guard edges 2 on the inner edges of both ends of the cover 1. The guard edge 2 is an annular plate along the circumference of the cover 1. The upper end of the guard edge 2 is vertically welded to the inner wall of the cover 1. The function of the guard edge 2 is to prevent the lubricating oil on the inner wall of the cover 1 from flowing out.

[0020] As shown in the figure, there is an observation window 6 on the cover 1, which is connected to the cover 1 via a hinge. The observation window 6 can be opened to observe the status of the high-speed shaft coupling 4.

[0021] As shown in the figure, the oil collection box 7 is a rectangular box, placed inside the support 5. The four walls of the oil collection box 7 are connected to the four walls of the support 5. The upper surface of the oil collection box 7 is open and faces the lower opening of the cover 1. The lubricating oil collected on the inner wall of the cover 1 flows downward into the oil collection box 7. The bottom surface of the oil collection box 7 is tilted to one side, and the front and rear ends are also tilted.

[0022] An embodiment of this utility model is as follows: Crane model: YZS240 / 80t-21.5m A7; The main motor model is YZP315S1-8H. High-speed shaft coupling model for trolley: GCLD6; The diameter of the steel bars in bracket 5 is 12mm, the frame length is 300mm, the width is 270mm, and the height is 550mm; The steel plate of cover 1 is 1.2mm thick, 282mm in diameter, 330mm long, and has a lower opening width of 258mm. The length of the oil receiving box 7 is 300mm, the width is 300mm, and the height is 300mm; The edge protector 2 is 424mm long, 40mm wide, and 1.2mm thick; The length of the observation window 6 is 80mm and the width is 80mm.

Claims

1. A guard shield to prevent high speed shaft couplings from throwing out lubricating oil, characterized by: It includes a bracket (5), a cover (1), and an oil receiving box (7). The bracket (5) is a cuboid frame. The bracket (5) is fixed below the shaft coupling (4) by a fixing point (8). The arc of the bracket (5) is opposite to the shaft coupling (4). The cover (1) is a cylindrical body. The cylindrical body of the cover (1) is fixed on the bracket (5). The lower half of the cylindrical body of the cover (1) is open. The bracket (5) passes through half of the cylindrical wall, so that the upper half of the cover (1) is outside the bracket (5), and the lower half of the cover (1) is inside the bracket (5) and open. The open part of the cover (1) extends into the baffles on both sides of the oil receiving box (7).

2. The guard shield to prevent high speed shaft coupling throw out of lubricating oil as claimed in claim 1 wherein: The bracket (5) is made of steel bars welded into a cuboid frame. The four corners of the lower end of the bracket (5) are respectively fixed to the ground steel structure by fixing points (8).

3. The guard shield to prevent high speed shaft coupling throw out of lubricating oil as claimed in claim 1 wherein: The inner edges of both ends of the cover (1) are respectively provided with protective edges (2). The protective edges (2) are annular plates along the circumference of the cover (1). The upper end of the protective edges (2) is vertically welded to the inner wall of the cover (1).

4. The guard shield to prevent high speed shaft coupling throw out of lubricating oil as claimed in claim 1 wherein: The upper part of the cover (1) has an observation window (6), and one side of the observation window cover is fixed with a pin.

5. The guard shield to prevent high speed shaft coupling throw out of lubricating oil as claimed in claim 1 wherein: The bottom of the oil receiving box (7) is tilted to one side, and at the same time, the front and rear ends are tilted.

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