Safe, accurate and efficient lubricating device for metallurgical crane pulley block

Abstract

The invention belongs to the technical field of pulley block lubrication, and particularly relates to a safe, accurate and efficient lubricating device for a metallurgical crane pulley block, which comprises a pulley shaft, pulley sheets are rotationally connected to the circumferential wall of the pulley shaft in a transverse linear array, lubricating holes are coaxially formed in the pulley shaft, and lubricating assemblies are connected in the pulley shaft in a transverse array manner. The lubricating hole and the pulley sheet are respectively communicated with the lubricating assembly, and the lubricating assembly comprises an alarm pressure maintaining unit and a reset unit; lubricating oil can be accurately conveyed to the pulley piece through the lubricating holes in the pulley shaft and the transversely-arrayed lubricating assemblies, it is ensured that all parts of the pulley block are fully lubricated, abrasion and faults caused by insufficient lubrication are reduced, and it is ensured that after the pulley piece is filled with the lubricating oil through the design of the pressure maintaining units and the reset units in the lubricating assemblies, the pulley piece can be fully lubricated. Lubricating oil supply can be automatically cut off, excessive lubricating oil is prevented, and therefore pollution and potential safety hazards caused by lubricating oil leakage are avoided.

Description

Technical Field

[0001] The present invention belongs to the technical field of pulley group lubrication, and specifically refers to a safe, precise and efficient lubrication device for a pulley group of a metallurgical crane. Background Art

[0002] A metallurgical crane is used to lift scrap steel, billets, alloys and various materials. It mainly realizes lifting through the longitudinal movement of the trolley on the main girder track of the gantry crane and the lateral movement of the gantry crane. Metallurgical cranes usually work in harsh environments of high temperature, multi-dust and heavy load. As a key component, the pulley group bears huge loads and frequent rotations, and is prone to wear and failures.

[0003] Traditional manual regular oil filling methods have problems such as high labor intensity, low efficiency, uneven lubrication, etc. It is difficult to ensure sufficient lubrication of the pulley group, which easily leads to increased wear and shortened service life. Although oil bath lubrication can provide better lubrication effects, there is a problem that the oil volume is prone to leakage.

[0004] Therefore, a safe, precise and efficient lubrication device for a pulley group of a metallurgical crane is needed to solve the technical problems in the prior art that it is difficult to ensure sufficient lubrication of the pulley group and the oil volume is prone to leakage. Summary of the Invention

[0005] In view of the above situation, to overcome the defects of the prior art, the present invention provides a safe, precise and efficient lubrication device for a pulley group of a metallurgical crane. Through the lubrication holes in the pulley shaft and the laterally arrayed lubrication components, lubricating oil can be accurately delivered to the pulley discs, ensuring that all components of the pulley group are fully lubricated, reducing wear and failures caused by insufficient lubrication, solving the technical problem in the prior art that it is difficult to ensure sufficient lubrication of the pulley group. After the pulley discs are filled with lubricating oil, the supply of lubricating oil can be automatically cut off to prevent excessive lubricating oil, thereby avoiding pollution and safety hazards caused by lubricating oil leakage, and solving the technical problem in the prior art that the oil volume is prone to leakage.

[0006] To solve the above technical problems, the technical solution adopted by the present invention is as follows: A safe, precise and efficient lubrication device for a pulley group of a metallurgical crane proposed in this solution includes a pulley shaft. The circumferential wall of the pulley shaft is rotatably connected with pulley discs in a laterally linear array. A lubrication hole is coaxially provided on the pulley shaft. A lubrication component is transversely arrayed and connected inside the pulley shaft. The lubrication hole and the pulley discs are respectively communicated with the lubrication component.

[0007] The lubrication component includes an alarm, a pressure maintaining unit and a reset unit. The pulley discs and the lubrication holes are respectively communicated with the pressure maintaining unit. The pressure maintaining unit and the pulley discs are respectively communicated with the reset unit.

[0008] Preferably, the pressure maintaining unit includes a pressure maintaining groove, a pushing plate, a first spring and a feed pipe. The pressure maintaining groove is arranged inside the pulley shaft, and is communicated with the lubricating hole. The pushing plate is slidably connected inside the pressure maintaining groove. The first spring is symmetrically and horizontally fixedly connected to the top wall of the pushing plate, and the other end of the first spring is fixedly connected to the top wall of the pressure maintaining groove. One end of the feed pipe is communicated with the side wall of the pressure maintaining groove, and the other end of the feed pipe is communicated with the pulley piece.

[0009] Preferably, the reset unit includes a reset groove, a moving plate, a second spring and a reset pipe. The reset groove is arranged inside the pulley shaft, and the bottom wall of the reset groove is communicated with the top wall of the pressure maintaining groove. The moving plate is slidably connected inside the reset groove. The second spring is horizontally and linearly arrayed and fixedly connected to the bottom wall of the moving plate, and the other end of the second spring is fixedly connected to the inner bottom wall of the reset groove. One end of the reset pipe is communicated with the side wall of the reset groove, and the other end of the reset pipe is communicated with the pulley piece.

[0010] Preferably, the feeding assembly includes a connecting pipe, a connecting groove, a pushing ball, a pushing spring and a support rod. One end of the connecting pipe is coaxially and fixedly connected to one end of the pulley shaft. The connecting groove is coaxially arranged inside the connecting pipe and is coaxially arranged with the lubricating hole. The pushing ball moves inside the connecting groove. The support rod is fixedly connected inside the connecting groove. The two ends of the pushing spring are respectively fixedly connected to the pushing ball and the support rod.

[0011] The beneficial effects obtained by the present invention with the above structure are as follows:

[0012] 1. Through the lubricating holes inside the pulley shaft and the horizontally arrayed lubricating components, the lubricating oil can be accurately delivered to the pulley piece, ensuring that all components of the pulley group are fully lubricated, reducing wear and failures caused by insufficient lubrication;

[0013] 2. The design of the pressure maintaining unit and the reset unit in the lubricating components ensures that after the pulley piece is filled with lubricating oil, the supply of lubricating oil can be automatically cut off to prevent excessive lubricating oil, thereby avoiding pollution and potential safety hazards caused by lubricating oil leakage. Description of the Drawings

[0014] The drawings are used to provide a further understanding of the solution, and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention, and do not constitute a limitation to the present invention.

[0015] Figure 1 It is a schematic diagram of the overall structure of a safe, precise and efficient lubricating device for a metallurgical crane pulley group proposed by the present invention;

[0016] Figure 2 It is a schematic diagram of the overall sectional structure of a safe, precise and efficient lubricating device for a metallurgical crane pulley group proposed by the present invention;

[0017] Figure 3 Schematic diagram of the connection structure of the lubrication component of a safe, precise and efficient lubrication device for a metallurgical crane pulley block proposed by the present invention;

[0018] Figure 4 Schematic diagram of the connection structure of the feeding component of a safe, precise and efficient lubrication device for a metallurgical crane pulley block proposed by the present invention.

[0019] In the drawings: 1, pulley shaft; 2, pulley disc; 3, feeding component; 4, lubrication component; 5, lubrication hole; 41, pressure maintaining unit; 42, reset unit; 401, pressure maintaining groove; 402, push plate; 403, first spring; 404, feeding pipe; 405, reset groove; 406, moving plate; 407, second spring; 408, reset pipe; 301, connecting pipe; 302, connecting groove; 303, push ball; 304, push spring; 305, support rod.

[0020] The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention. Detailed implementation manners

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0022] Embodiment 1, as Figures 1 - 4 shown, a safe, precise and efficient lubrication device for a metallurgical crane pulley block proposed by this solution includes a pulley shaft 1. Pulley discs 2 are rotatably connected in a horizontal linear array on the circumferential wall of the pulley shaft 1. A lubrication hole 5 is coaxially provided on the pulley shaft 1. A lubrication component 4 is horizontally arrayed and connected inside the pulley shaft 1. The lubrication hole 5 and the pulley discs 2 are respectively communicated with the lubrication component 4;

[0023] The lubrication component 4 includes a pressure maintaining unit 41 and a reset unit 42. The pulley discs 2 and the lubrication hole 5 are respectively communicated with the pressure maintaining unit 41. The pressure maintaining unit 41 and the pulley discs 2 are respectively communicated with the reset unit 42.

[0024] As Figures 1 - 3As shown, the pressure maintaining unit 41 includes a pressure maintaining groove 401, a pushing plate 402, a first spring 403, and a feed pipe 404. The pressure maintaining groove 401 is provided in the pulley shaft 1. The pressure maintaining groove 401 is communicated with the lubricating hole 5. The pushing plate 402 is slidably connected in the pressure maintaining groove 401. The first spring 403 is horizontally symmetrically fixedly connected to the top wall of the pushing plate 402. The other end of the first spring 403 is fixedly connected to the top wall of the pressure maintaining groove 401. One end of the feed pipe 404 is communicated with the side wall of the pressure maintaining groove 401. The other end of the feed pipe 404 is communicated with the pulley piece 2.

[0025] As Figures 1 - 3 shown, the reset unit 42 includes a reset groove 405, a moving plate 406, a second spring 407, and a reset pipe 408. The reset groove 405 is provided in the pulley shaft 1. The bottom wall of the reset groove 405 is communicated with the top wall of the pressure maintaining groove 401. The moving plate 406 is slidably connected in the reset groove 405. The second spring 407 is horizontally linearly arrayed and fixedly connected to the bottom wall of the moving plate 406. The other end of the second spring 407 is fixedly connected to the inner bottom wall of the reset groove 405. One end of the reset pipe 408 is communicated with the side wall of the reset groove 405. The other end of the reset pipe 408 is communicated with the pulley piece 2.

[0026] As Figures 1 - 2 and Figure 4 shown, the feeding assembly 3 includes a connecting pipe 301, a connecting groove 302, a pushing ball 303, a pushing spring 304, and a support rod 305. One end of the connecting pipe 301 is coaxially and fixedly connected to one end of the pulley shaft 1. The connecting groove 302 is coaxially provided in the connecting pipe 301. The connecting groove 302 is coaxially arranged with the lubricating hole 5. The pushing ball 303 moves in the connecting groove 302. The support rod 305 is fixedly connected in the connecting groove 302. The two ends of the pushing spring 304 are respectively fixedly connected to the pushing ball 303 and the support rod 305.

[0027] When lubricating oil needs to be filled, connect the external lubricating oil filling connector to the connecting groove 302 on the connecting pipe 301. The lubricating oil enters the connecting groove 302. The lubricating oil drives the pushing ball 303 to move, and the pushing spring 304 is compressed. Then the lubricating oil enters the lubricating hole 5. The lubricating oil enters the pressure maintaining groove 401. The lubricating oil drives the pushing plate 402 to move, and the first spring 403 is compressed. The lubricating oil enters the pulley piece 2 through the feed pipe 404. When the pulley piece 2 is filled with lubricating oil, the lubricating oil in the pulley piece 2 enters the reset groove 405. The lubricating oil pushes the moving plate 406, compressing the second spring 407. The moving plate 406 presses the air in the reset groove 405 into the pressure maintaining groove 401. The first spring 403 resets, and then the pushing plate 402 resets. The lubricating oil in the lubricating hole 5 cannot enter the pressure maintaining groove 401.

[0028] The above description of the present invention and its embodiments is not restrictive. What is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In general, if those of ordinary skill in the art are inspired by it and, without departing from the gist of the present invention, design similar structural modes and embodiments to this technical solution without creative efforts, they shall fall within the protection scope of the present invention.

Claims

1. A safe, accurate and efficient lubrication device for a metallurgical crane pulley block, comprising a pulley shaft (1), characterized in that: The pulley shaft (1) has a pulley sheet (2) rotatably connected in a transverse linear array on its circumferential wall, the pulley shaft (1) has a lubrication hole (5) coaxially arranged thereon, a lubrication assembly (4) is connected in a transverse array inside the pulley shaft (1), and the lubrication hole (5) and the pulley sheet (2) are respectively connected to the lubrication assembly (4); The lubrication component (4) alarms a pressure-maintaining unit (41) and a reset unit (42); the pulley (2) and the lubrication hole (5) are respectively connected to the pressure-maintaining unit (41); and the pressure-maintaining unit (41) and the pulley (2) are respectively connected to the reset unit (42).

2. A safe, accurate and efficient lubrication device for a metallurgical crane pulley block according to claim 1, characterized in that: The pressure-maintaining unit (41) comprises a pressure-maintaining groove (401), a pushing plate (402), a first spring (403) and a feed pipe (404); the pressure-maintaining groove (401) is arranged in the pulley shaft (1); the pressure-maintaining groove (401) is connected to the lubrication hole (5); the pushing plate (402) is slidably connected in the pressure-maintaining groove (401); the first spring (403) is laterally symmetrically fixedly connected to the top wall of the pushing plate (402); the other end of the first spring (403) is fixedly connected to the top wall of the pressure-maintaining groove (401); one end of the feed pipe (404) is connected to the side wall of the pressure-maintaining groove (401); and the other end of the feed pipe (404) is connected to the pulley (2).

3. A safe, accurate and efficient lubrication device for a metallurgical crane pulley block according to claim 2, characterized in that: The reset unit (42) comprises a reset groove (405), a movable plate (406), a second spring (407) and a reset tube (408); the reset groove (405) is arranged in the pulley shaft (1); the bottom wall of the reset groove (405) is connected to the top wall of the pressure-maintaining groove (401); the movable plate (406) is slidably connected in the reset groove (405); the second spring (407) is fixedly connected to the bottom wall of the movable plate (406) in a transverse linear array; the other end of the second spring (407) is fixedly connected to the bottom wall of the reset groove (405); one end of the reset tube (408) is connected to the side wall of the reset groove (405); and the other end of the reset tube (408) is connected to the pulley (2).

4. A safe, accurate and efficient lubrication device for a metallurgical crane pulley block according to claim 3, characterized in that: The feeding assembly (3) comprises a connecting tube (301), a connecting groove (302), a pushing ball (303), a pushing spring (304) and a supporting rod (305); one end of the connecting tube (301) is coaxially fixedly connected to one end of the pulley shaft (1); the connecting groove (302) is coaxially arranged in the connecting tube (301); the connecting groove (302) is coaxially arranged with the lubrication hole (5); the pushing ball (303) moves in the connecting groove (302); the supporting rod (305) is fixedly connected in the connecting groove (302); and both ends of the pushing spring (304) are respectively fixedly connected to the pushing ball (303) and the supporting rod (305).

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