Device for adjusting lubricating oil pressure of gearbox

Abstract

The utility model provides a device for adjusting lubricating oil pressure of a gear box, which belongs to the field of mechanical devices and comprises the gear box, an oil pressure adjusting rod, a gear oil spraying pipe and a gear are arranged in the gear box, the gear is arranged on the gear box and supported by a bearing, and the gear oil spraying pipe is arranged on one side of the gear. The left end of the gear oil spraying pipe is arranged on the gearbox cover, the right end of the gear oil spraying pipe is communicated with a lubricating oil inlet of the gearbox rear box body, an oil spraying hole is formed in the middle of the gear oil spraying pipe, an oil hole is formed in the left end of the gear oil spraying pipe, and a first pressure adjusting hole is formed in one side between the oil spraying hole and the oil hole. The oil pressure adjusting rod is arranged in the left end of the gear oil spraying pipe, and one end of the oil pressure adjusting rod extends out of the outer side of the gear oil spraying pipe. The gearbox lubricating oil pressure adjusting device is compact in structure, capable of rapidly adjusting the gearbox lubricating oil pressure on site, convenient, rapid, simple in structure and low in cost.

Description

Technical Field

[0001] The utility model relates to the field of mechanical devices, in particular to a device for regulating the lubricating oil pressure of a gear box. Background Art

[0002] High-speed gearboxes generally require external lubricating oil to force oil spray lubrication on the gear meshing parts and supporting bearings to remove the heat generated by friction. When the size of the spray hole is constant, the level of lubricating oil pressure directly affects the amount of oil sprayed. Generally, the regulation of lubricating oil pressure requires adding a bypass to the oil tank at the outlet of the lubrication system oil pump, and controlling the flow of the bypass back to the oil tank through a valve to adjust the lubricating oil pressure entering the gearbox. However, the gearbox itself does not have the function of regulating oil pressure. When the lubrication system of the equipment is not equipped with bypass lines and valves, and it needs to be temporarily added at the operating site, the newly added pipeline needs to be re-drilled and welded, which is costly and difficult to construct, and the gearbox lubricating oil pressure cannot be quickly adjusted on site. Therefore, a device for regulating the lubricating oil pressure of a gearbox is needed. Utility Model Content

[0003] The purpose of the utility model is to provide a device for adjusting the lubricating oil pressure of a gear box, so as to solve the technical problem that the lubricating oil pressure of the existing gear box cannot be quickly adjusted on site. The utility model has a compact structure and can quickly adjust the lubricating oil pressure of the gear box on site, which is convenient and fast, and at the same time has a simple structure and low cost.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0005] A device for regulating the lubricating oil pressure of a gear box comprises a gear box, wherein an oil pressure regulating rod, a gear oil spray pipe and a gear are arranged inside the gear box, the gear is arranged on the gear box and supported by a bearing, the gear oil spray pipe is arranged on one side of the gear, and the left end of the gear oil spray pipe is arranged on the gear box cover, the right end of the gear oil spray pipe is connected to the lubricating oil inlet of the rear case of the gear box, an oil spray hole is arranged in the middle of the gear oil spray pipe, an oil hole is arranged at the left end of the gear oil spray pipe, a first pressure regulating hole is arranged on one side between the oil spray hole and the oil hole, the oil pressure regulating rod is arranged inside the left end of the gear oil spray pipe, and one end of the oil pressure regulating rod extends out of the outside of the gear oil spray pipe.

[0006] Furthermore, the gear oil injection pipe is fixed to the gear box cover by means of fixing bolts, and a first sealing gasket is arranged between the gear oil injection pipe and the gear box cover.

[0007] Furthermore, a first O-ring is disposed at the left end of the gear oil injection pipe, and a second O-ring is disposed at the right end of the gear oil injection pipe.

[0008] Furthermore, the oil pressure regulating rod comprises a first regulating rod, a second regulating rod and a third regulating rod, the first regulating rod is connected to the second regulating rod, and the second regulating rod and the third regulating rod are integrally formed.

[0009] Furthermore, the first adjusting rod is arranged inside the gear oil injection pipe, the first adjusting rod is arranged as a hollow rod, and a second pressure regulating hole is arranged on one side of the first adjusting rod.

[0010] Furthermore, the second adjusting rod is arranged inside the gear oil injection pipe, the second adjusting rod is arranged as a hollow rod, and an oil hole is arranged on one side of the second adjusting rod.

[0011] Furthermore, the third adjusting rod is configured as a solid rod, a thread is provided on the outer side of the third adjusting rod, and a hexagonal head is provided on one end of the third adjusting rod.

[0012] Furthermore, one end of the third adjusting rod is arranged inside the gear oil injection pipe, the other end of the third adjusting rod extends out of the gear oil injection pipe, and the other end of the third adjusting rod is fixed to the gear oil injection pipe by an outer locking nut and an inner locking nut respectively.

[0013] Furthermore, the outer locking nut and the inner locking nut are respectively connected to the third adjusting rod, and a second sealing gasket is arranged between the inner locking nut and the gear oil injection pipe.

[0014] The utility model has the following beneficial effects due to the adoption of the above technical solution:

[0015] The utility model has a compact structure and can quickly adjust the lubricating oil pressure of the gear box on site, which is convenient and quick, and at the same time has a simple structure and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of adjusting the lubricating oil pressure of the gear box of the utility model (highest oil pressure state);

[0017] Figure 2 It is a schematic diagram of adjusting the lubricating oil pressure of the gear box of the utility model (lowest oil pressure state);

[0018] Figure 3 It is a structural schematic diagram of the oil pressure regulating rod of the utility model.

[0019] In the accompanying drawings, 1-oil pressure regulating rod, 1-1-second pressure regulating hole, 1-2-oil hole, 1-3-thread, 1-4-hexagonal head, 2-external locking nut, 3-inner locking nut, 4-second sealing gasket, 5-gear injection pipe, 5-1-injection hole, 5-2-first pressure regulating hole, 5-3-oil hole, 6-fixing bolt, 7-first O-ring, 8-box cover, 9-gear, 10-O-ring, 11-rear box body, 12-first sealing gasket. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail with reference to the accompanying drawings and preferred embodiments. However, it should be noted that many details listed in the specification are only for the purpose of enabling readers to have a thorough understanding of one or more aspects of the utility model, and these aspects of the utility model can be realized even without these specific details.

[0021] like Figure 1-3 As shown, a device for adjusting the lubricating oil pressure of a gearbox includes a gearbox, an oil pressure regulating rod 1, a gear oil spray pipe 5 and a gear 9 are arranged inside the gearbox, the gear 9 is arranged on the gearbox, and the gear 9 is supported by a bearing, the gear oil spray pipe 5 is arranged on one side of the gear 9, and a certain distance is arranged between the gear 9 and the wheel oil spray pipe 5 to ensure the rotation of the gear 9; and the left end of the gear oil spray pipe 5 is arranged on the gearbox cover 8, the right end of the gear oil spray pipe 5 is connected to the lubricating oil inlet of the rear case 11 of the gearbox, an oil spray hole 5-1 is arranged in the middle of the gear oil spray pipe 5, an oil hole 5-3 is arranged at the left end of the gear oil spray pipe 5, and a first pressure regulating hole 5-2 is arranged on one side between the oil spray hole 5-1 and the oil hole 5-3, the oil pressure regulating rod 1 is arranged inside the left end of the gear oil spray pipe 5, and one end of the oil pressure regulating rod 1 extends out of the outside of the gear oil spray pipe 5. The gear oil spray pipe 5 can be used to lubricate the gear 9 on the one hand, and to introduce lubricating oil from the rear case 11 of the gearbox into the gearbox cover 8 on the other hand. The utility model has a compact structure and can quickly adjust the lubricating oil pressure of the gear box on site, which is convenient and quick, and at the same time has a simple structure and low cost.

[0022] like Figure 1 or Figure 2 As shown, the gear oil injection pipe 5 is fixed to the gear box cover 8 by fixing bolts 6, and a first sealing gasket 12 is arranged between the gear oil injection pipe 5 and the gear box cover 8. A first O-ring 7 is arranged at the left end of the gear oil injection pipe 5, and a second O-ring 10 is arranged at the right end of the gear oil injection pipe 5. The gear oil injection pipe 5 is sealed by the first O-ring 7, the second O-ring 10 and the first sealing gasket 12.

[0023] like Figure 3As shown, the oil pressure regulating rod 1 includes a first regulating rod 1-5, a second regulating rod 1-6 and a third regulating rod 1-7, the first regulating rod 1-5 is connected to the second regulating rod 1-6, and the second regulating rod 1-6 and the third regulating rod 1-7 are integrally formed. The first regulating rod 1-5 is arranged inside the gear oil injection pipe 5, the first regulating rod 1-5 is arranged as a hollow rod, and a second pressure regulating hole 1-1 is arranged on one side of the first regulating rod 1-5. When the oil pressure regulating rod 1 is adjusted, the oil pressure is adjusted by the overlap area of ​​the second pressure regulating hole 1-1 and the first pressure regulating hole 5-2. A part of the lubricating oil flows out from the second pressure regulating hole 1-1 and the first pressure regulating hole 5-2 to the gear box body, which is equivalent to adding a pressure relief point, and the amount of oil in other places will be reduced accordingly, and the lubricating oil pressure of the entire gear box will drop. By adjusting the lateral position of the oil pressure regulating rod 1, the overlap area of ​​the second pressure regulating hole 1-1 and the first pressure regulating hole 5-2 can be adjusted, and then the amount of oil leakage can be adjusted to achieve the purpose of adjusting the lubricating oil pressure of the gear box. The second adjusting rod 1-6 is arranged inside the gear oil spray pipe 5. The second adjusting rod 1-6 is arranged as a hollow rod. One side of the second adjusting rod 1-6 is arranged with an oil hole 1-2. The lubricating oil enters the gear oil spray pipe 5 from the lubricating oil inlet of the rear housing 11 of the gear box. A part of the lubricating oil is sprayed out from the oil hole 5-1 to lubricate and cool the gear 9; the other part of the lubricating oil enters the oil circuit of the gear box cover 8 from the oil hole 1-2 and the oil hole 5-3. The third adjusting rod 1-7 is arranged as a solid rod. The outer side of the third adjusting rod 1-7 is provided with a thread 1-3. The lateral position of the oil pressure adjusting rod 1 is adjusted by the thread 1-3 on the third adjusting rod 1-7; a hexagonal head 1-4 is arranged on one end of the third adjusting rod 1-7. One end of the third adjusting rod 1-7 is arranged inside the gear oil spray pipe 5, and the other end of the third adjusting rod 1-7 extends out of the outer side of the gear oil spray pipe 5, and the other end of the third adjusting rod 1-7 is fixed to the gear oil spray pipe 5 by an outer lock nut 2 and an inner lock nut 3 respectively. After adjusting to the appropriate oil pressure, clamp the hexagonal head 1-4 with a tool, turn the outer locking nut 2, and lock the oil pressure regulating rod 1. The outer locking nut 2 and the inner locking nut 3 are respectively connected to the third regulating rod 1-7, and a second sealing gasket 4 is provided between the inner locking nut 3 and the gear oil injection pipe 5. The outer locking nut 2 and the inner locking nut 3 are used to lock the oil pressure regulating rod 1.

[0024] How it works

[0025] Assemble the oil pressure regulating rod 1 in place, and note that the oil hole 1-2 must be aligned with the oil hole 5-3 of the gear oil injection pipe 5; use a tool to clamp the hexagonal head 1-4, and turn the inner tightening nut 3 to make the oil pressure regulating rod 1 move laterally along the inner wall of the gear oil injection pipe 5; when the second pressure regulating hole 1-1 and the first pressure regulating hole 5-2 overlap, a part of the lubricating oil will flow out from the second pressure regulating hole 1-1 and the first pressure regulating hole 5-2 to the gear box body, which is equivalent to adding a pressure relief point. The amount of oil in other places will decrease accordingly, and the lubricating oil pressure of the entire gear box will drop; by adjusting the lateral position of the oil pressure regulating rod 1, the overlapping area of ​​the two holes can be adjusted, and then the amount of oil leakage can be adjusted to achieve the purpose of adjusting the lubricating oil pressure of the gear box; after adjusting to the appropriate oil pressure, use a tool to clamp the hexagonal head 1-4, turn the outer locking nut 2, and lock the oil pressure regulating rod 1.

[0026] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A device for regulating the lubricating oil pressure of a gear box, characterized in that: The invention comprises a gear box, wherein an oil pressure regulating rod (1), a gear oil spray pipe (5) and a gear (9) are arranged inside the gear box, the gear (9) is arranged on the gear box and supported by a bearing, the gear oil spray pipe (5) is arranged on one side of the gear (9), and the left end of the gear oil spray pipe (5) is arranged on the gear box cover (8), the right end of the gear oil spray pipe (5) is connected to the lubricating oil inlet of the rear case (11) of the gear box, an oil spray hole (5-1) is arranged in the middle of the gear oil spray pipe (5), an oil hole (5-3) is arranged at the left end of the gear oil spray pipe (5), a first pressure regulating hole (5-2) is arranged on one side between the oil spray hole (5-1) and the oil hole (5-3), the oil pressure regulating rod (1) is arranged inside the left end of the gear oil spray pipe (5), and one end of the oil pressure regulating rod (1) extends out of the outside of the gear oil spray pipe (5).

2. The device for adjusting the lubricating oil pressure of a gear box according to claim 1, characterized in that: The gear oil injection pipe (5) is fixed to the gear box cover (8) via fixing bolts (6), and a first sealing gasket (12) is provided between the gear oil injection pipe (5) and the gear box cover (8).

3. The device for adjusting the lubricating oil pressure of a gear box according to claim 1, characterized in that: A first O-ring (7) is arranged at the left end of the gear oil injection pipe (5), and a second O-ring (10) is arranged at the right end of the gear oil injection pipe (5).

4. The device for adjusting the lubricating oil pressure of a gear box according to claim 1, characterized in that: The oil pressure regulating rod (1) comprises a first regulating rod (1-5), a second regulating rod (1-6) and a third regulating rod (1-7); the first regulating rod (1-5) is connected to the second regulating rod (1-6); and the second regulating rod (1-6) and the third regulating rod (1-7) are integrally formed.

5. The device for adjusting the lubricating oil pressure of a gear box according to claim 4, characterized in that: The first regulating rod (1-5) is arranged inside the gear oil injection pipe (5), the first regulating rod (1-5) is arranged as a hollow rod, and a second pressure regulating hole (1-1) is arranged on one side of the first regulating rod (1-5).

6. The device for adjusting the lubricating oil pressure of a gear box according to claim 4, characterized in that: The second adjusting rod (1-6) is arranged inside the gear oil injection pipe (5); the second adjusting rod (1-6) is arranged as a hollow rod; and an oil hole (1-2) is arranged on one side of the second adjusting rod (1-6).

7. The device for adjusting the lubricating oil pressure of a gear box according to claim 4, characterized in that: The third adjusting rod (1-7) is arranged as a solid rod, a thread (1-3) is arranged on the outer side of the third adjusting rod (1-7), and a hexagonal head (1-4) is arranged on one end of the third adjusting rod (1-7).

8. The device for adjusting the lubricating oil pressure of a gear box according to claim 4, characterized in that: One end of the third adjusting rod (1-7) is arranged inside the gear oil injection pipe (5), the other end of the third adjusting rod (1-7) extends outside the gear oil injection pipe (5), and the other end of the third adjusting rod (1-7) is fixed to the gear oil injection pipe (5) via an outer locking nut (2) and an inner locking nut (3), respectively.

9. The device for adjusting the lubricating oil pressure of a gear box according to claim 8, characterized in that: The outer locking nut (2) and the inner locking nut (3) are respectively connected to the third adjusting rod (1-7), and a second sealing gasket (4) is arranged between the inner locking nut (3) and the gear oil injection pipe (5).

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