Lubricating structure of gear coupling

Abstract

The utility model relates to the technical field of gear couplings, in particular to a lubricating structure of a gear coupling, which comprises a box body, a first mechanism, a second mechanism and an oil inlet pipe assembly, and the first mechanism and the second mechanism are oppositely arranged; the lubricating oil groove is arranged around the outer rings of the first support bearing and the second support bearing to form an oil cavity; the gear sleeve connecting oil hole is communicated with the oil inlet hole, the first oil supply hole and the second oil supply hole are communicated with the gear sleeve connecting oil hole in parallel, a first spraying point is arranged at the end, away from the gear sleeve connecting oil hole, of the first oil supply hole, and a second spraying point is arranged at the end, away from the gear sleeve connecting oil hole, of the second oil supply hole; the oil inlet pipe assembly is installed on the box body, communicates with the oil inlet hole and is externally connected with a lubricating pipeline of the gearbox. According to the invention, the problems of abrasion and heating between the inner teeth and the outer teeth are solved, and the lubricating and cooling effects are realized.

Description

Technical Field

[0001] The present application relates to the technical field of gear couplings, and in particular to a lubrication structure of a gear coupling. Background Art

[0002] The gear coupling is an important basic mechanical component. Its function is to connect the driving and driven shafts, transmit torque, and make the two shafts rotate together. The gear coupling is used in gear boxes with large torque transmission and limited installation space, such as planetary gear boxes, high-speed boxes, large elevator reducers and other transmission shafts. During operation, the movement of the gear coupling is a synthesis of swinging and flipping motions, so there is a relatively large reciprocating motion between the inner and outer teeth, which causes wear damage to the tooth surface. On the other hand, the friction between the inner and outer teeth generates heat, especially at high speeds, the heat is more obvious, further aggravating the burns and wear damage to the tooth surface. Utility Model Content

[0003] In order to improve the wear and heat problems between the inner teeth and the outer teeth, the present application provides a lubrication structure of a gear coupling for the gear coupling.

[0004] The lubrication structure of a gear coupling provided in this application adopts the following technical solution:

[0005] A lubrication structure of a gear coupling comprises a housing, a first mechanism, a second mechanism and an oil inlet pipe assembly, wherein the first mechanism and the second mechanism are arranged opposite to each other;

[0006] The first mechanism comprises a first inner gear sleeve, a first outer gear sleeve, a first support bearing and a first transmission shaft; the first transmission shaft is mounted on the housing through the first support bearing; the first outer gear sleeve is coaxially arranged on the first transmission shaft;

[0007] The second mechanism comprises a second inner gear sleeve, a second outer gear sleeve, a second support bearing and a second transmission shaft, the second transmission shaft is mounted on the housing through the second support bearing, and the second outer gear sleeve is coaxially arranged on the second transmission shaft;

[0008] The first internal gear sleeve and the second internal gear sleeve are connected to each other;

[0009] The box body is provided with a lubricating oil groove, a first oil supply hole, a second oil supply hole, a gear sleeve connecting oil hole and an oil inlet hole; the lubricating oil groove is arranged around the outer rings of the first support bearing and the second support bearing to form an oil chamber; the gear sleeve connecting oil hole is connected with the oil inlet hole, the first oil supply hole and the second oil supply hole are connected in parallel to the gear sleeve connecting oil hole, a first spray point is arranged at one end of the first oil supply hole away from the gear sleeve connecting oil hole, a second spray point is arranged at one end of the second oil supply hole away from the gear sleeve connecting oil hole, and the first spray point and the second spray point are arranged toward the first inner gear sleeve, the first outer gear sleeve, the second outer gear sleeve and the second inner gear sleeve;

[0010] The oil inlet pipe assembly is installed on the box body, and the oil inlet pipe assembly is communicated with the oil inlet hole and is externally connected to the lubrication pipeline of the gear box.

[0011] By adopting the above-mentioned technical scheme, the gear coupling lubrication device of the present application rationally utilizes the pressure oil of the gear box lubrication system, introduces the lubricating oil into the oil inlet hole through the lubrication pipeline and the oil inlet pipe assembly, and then introduces the lubricating oil into the first oil supply hole and the second oil supply hole through the gear sleeve connecting oil hole, and sprays the lubricating oil toward the first inner gear sleeve, the first outer gear sleeve, the second outer gear sleeve and the second inner gear sleeve through the first spray point and the second spray point, thereby achieving lubrication and heat dissipation of the gear coupling, and improving the wear and heat generation problems between the inner teeth and the outer teeth.

[0012] Optionally, a lubricating oil groove is also provided on the housing, and the lubricating oil groove is arranged around the outer rings of the first support bearing and the second support bearing to form an annular oil chamber; the gear sleeve connecting oil hole is arranged along the outer ring of the lubricating oil groove, and the end of the gear sleeve connecting oil hole away from the oil inlet hole is connected to the lubricating oil groove.

[0013] By adopting the above technical solution, the number of the oil holes connecting the gear sleeve can be increased or decreased according to the actual required oil volume, so as to achieve multi-point spraying and improve the lubrication and cooling effects.

[0014] Optionally, a first oil quantity control plug is provided at the first spray point, and a second oil quantity control plug is provided at the second spray point.

[0015] The adoption of the above technical solution helps to control the oil amount at the first spray point and the second spray point.

[0016] Optionally, the first spray point is directed toward a meshing circle between the first inner gear sleeve and the first outer gear sleeve, and toward a meshing circle between the second outer gear sleeve and the second inner gear sleeve.

[0017] By adopting the above technical solution, the lubricating oil can lubricate and cool the meshing portion between the first inner gear sleeve and the first outer gear sleeve, and the meshing portion between the second outer gear sleeve and the second inner gear sleeve.

[0018] Optionally, a plurality of waist-shaped holes are provided on the wheel ribs of the first outer gear sleeve and the second outer gear sleeve, and the second spraying point sprays toward the positions of the waist-shaped holes.

[0019] By adopting the above technical solution, the lubricating oil can enter the interior of the gear coupling through the waist-shaped hole to lubricate the inner side of the gear coupling.

[0020] Optionally, a bearing oil groove is provided on the first support bearing and the second support bearing, and the bearing oil groove is arranged in a ring shape to form an oil cavity; a bearing connecting oil hole is also provided on the housing, one end of the bearing connecting oil hole is connected to the oil inlet hole, and the other end of the bearing connecting oil hole is connected to the bearing oil groove, for supplying oil to the first support bearing and the second support bearing.

[0021] By adopting the above technical solution, the first support bearing and the second support bearing can be lubricated and cooled.

[0022] Optionally, a third oil quantity control plug is provided at one end of the bearing connecting oil hole away from the oil inlet hole.

[0023] The adoption of the technical solution is helpful to control the amount of oil for lubricating the first support bearing and the second support bearing.

[0024] Optionally, the second outer gear sleeve and the second inner gear sleeve are connected by a connecting bolt group.

[0025] Optionally, the oil inlet pipe assembly and the inner wall of the oil inlet hole are threadedly connected.

[0026] Optionally, the first external gear sleeve is fixed to the first transmission shaft via a first pressing plate and a first screw; the second external gear sleeve is fixed to the second transmission shaft via a second pressing plate and a second screw.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] 1. The present application reasonably utilizes the lubrication system of the gearbox, arranges a circle of spray points around the meshing circle of the gear coupling, and sprays lubrication and cooling on the meshing outer side of the gear coupling; spray points are also designed at the wheel belly of the gear coupling to achieve the purpose of lubrication and cooling of the inner side of the drum-shaped teeth; the multi-point spraying can achieve both lubrication and cooling purposes, and can well lubricate and cool the gear coupling to improve the wear of the tooth surface; and the lubrication device has a compact and simple structure, a large adjustable space for the oil spraying amount, and can adapt to various working conditions of the gear coupling;

[0029] 2. This gear coupling lubrication device rationally uses the pressure oil of the gear box lubrication system to divide the lubricating oil into two paths, one for lubricating the bearings and the other for lubricating the inner and outer gear sleeves of the gear coupling;

[0030] 3. The lubrication oil circuit of the inner and outer gear sleeves of the lubricating gear coupling is also divided into two circuits, one for lubricating the outer side of the gear sleeve and the other for lubricating the inner side of the gear sleeve to achieve multi-point lubrication;

[0031] 4. The two-way lubricating oil quantity for lubricating the gear coupling can be adjusted according to the actual oil demand; at each spray hole, an oil quantity control plug is used to control the lubricating oil quantity of the bearing and the gear coupling respectively. The lubrication device can ensure the lubrication and heat dissipation of the bearing and the gear sleeve of the gear coupling at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a cross-sectional view of a lubrication structure of a gear coupling according to an embodiment of the present application.

[0033] Figure 2 It is a detailed view of the lubrication of the side surface of the coupling meshing circle in the embodiment of the present application.

[0034] Figure 3 It is a detailed view of the support bearing hole in the embodiment of the present application.

[0035] Figure 4 It is a structural schematic diagram used to show the waist-shaped hole in the embodiment of the present application.

[0036] Explanation of the reference numerals in the accompanying drawings: 1. first inner gear sleeve; 2. first oil quantity control plug; 3. first oil supply hole; 4. gear sleeve connecting oil hole; 5. housing; 6. first support bearing; 7. first transmission shaft; 8. first pressure plate; 9. first screw; 10. first outer gear sleeve; 11. third oil quantity control plug; 13. bearing connecting oil hole; 14. oil inlet pipe assembly; 15. oil inlet hole; 16. second outer gear sleeve; 17. second screw; 18. second pressure plate; 19. second transmission shaft; 20. second support bearing; 21. bearing oil groove; 22. lubricating oil groove; 23. second oil supply hole; 24. wheel belly; 25. second inner gear sleeve; 26. connecting bolt group; 27. second spray point; 28. first spray point; 29. ​​second oil quantity control plug; 30. waist-shaped hole. DETAILED DESCRIPTION

[0037] The following is combined with Figure 1-4 This application is described in further detail.

[0038] The present application embodiment discloses a lubrication structure of a gear coupling. Figure 1-3The lubrication structure of the gear coupling includes a housing 5, a first mechanism, a second mechanism and an oil inlet pipe assembly 14, and the first mechanism and the second mechanism are arranged oppositely. The first mechanism includes a first inner gear sleeve 1, a first outer gear sleeve 10, a first support bearing 6 and a first transmission shaft 7; the first transmission shaft 7 is installed on the housing 5 through the first support bearing 6; the first outer gear sleeve 10 is coaxially arranged on the first transmission shaft 7. The second mechanism includes a second inner gear sleeve 25, a second outer gear sleeve 16, a second support bearing 20 and a second transmission shaft 19; the second transmission shaft 19 is installed on the housing 5 through the second support bearing 20, and the second outer gear sleeve 16 is coaxially arranged on the second transmission shaft 19. The first inner gear sleeve 1 and the second inner gear sleeve 25 are connected by a connecting bolt group 26. The first outer gear sleeve 10 is fixed to the first transmission shaft 7 through the first pressure plate 8 and the first screw 9; the second outer gear sleeve 16 is fixed to the second transmission shaft 19 through the second pressure plate 18 and the second screw 17.

[0039] The housing 5 is provided with a lubricating oil groove 22, a first oil supply hole 3, a second oil supply hole 23, a gear sleeve connecting oil hole 4 and an oil inlet hole 15; the lubricating oil groove 22 is arranged around the outer ring of the first support bearing 6 and the second support bearing 20 to form an oil chamber; the gear sleeve connecting oil hole 4 is connected to the oil inlet hole 15, the first oil supply hole 3 and the second oil supply hole 23 are connected in parallel to the gear sleeve connecting oil hole 4, the first oil supply hole 3 is provided with a first spray point 28 at one end away from the gear sleeve connecting oil hole 4, and the second oil supply hole 23 is provided with a second spray point 27 at one end away from the gear sleeve connecting oil hole 4, and the first spray point 28 and the second spray point 27 are arranged toward the first inner gear sleeve 1, the first outer gear sleeve 10, the second outer gear sleeve 16 and the second inner gear sleeve 25. The oil inlet pipe assembly 14 is installed on the housing 5, and the oil inlet pipe assembly 14 is connected to the oil inlet hole 15 and is externally connected to the lubrication pipeline of the gear box. The oil inlet pipe assembly 14 is threadedly connected to the inner wall of the oil inlet hole 15. The existing oil inlet pipe assembly 14 can be selected and installed according to actual conditions, and will not be described in detail in the embodiment of the present application.

[0040] The gear coupling lubrication device of the present application rationally utilizes the pressure oil of the gear box lubrication system, introduces the lubricating oil into the oil inlet hole 15 through the lubrication pipeline and the oil inlet pipe assembly 14, and then introduces the lubricating oil into the first oil supply hole 3 and the second oil supply hole 23 through the gear sleeve connecting oil hole 4, and sprays the lubricating oil toward the first inner gear sleeve 1, the first outer gear sleeve 10, the second outer gear sleeve 16 and the second inner gear sleeve 25 through the first spray point 28 and the second spray point 27, so as to achieve lubrication and heat dissipation of the gear coupling, and improve the wear and heat generation problems between the inner teeth and the outer teeth.

[0041] Reference Figure 1-3The housing 5 is also provided with a lubricating oil groove 22, which surrounds the outer rings of the first support bearing 6 and the second support bearing 20 to form an annular oil cavity; the gear sleeve connecting oil hole 4 is arranged along the outer ring of the lubricating oil groove 22, and the end of the gear sleeve connecting oil hole 4 away from the oil inlet hole 15 is connected to the lubricating oil groove 22. The number of gear sleeve connecting oil holes 4 can be increased or decreased according to the actual oil volume required to achieve multi-point spraying and improve the lubrication and cooling effects. A first oil volume control plug 2 is provided at the first spray point 28, and a second oil volume control plug 29 is provided at the second spray point 27, which helps to control the oil volume at the first spray point 28 and the second spray point 27.

[0042] Reference Figure 1-4 , the first spray point 28 is directed toward the meshing circle of the first inner gear sleeve 1 and the first outer gear sleeve 10, and toward the meshing circle of the second outer gear sleeve 16 and the second inner gear sleeve 25. The lubricating oil can lubricate and cool the meshing of the first inner gear sleeve 1 and the first outer gear sleeve 10, and the meshing of the second outer gear sleeve 16 and the second inner gear sleeve 25. A plurality of waist-shaped holes 30 are provided on the wheel ribs 24 of the first outer gear sleeve 10 and the second outer gear sleeve 16, and the second spray point 27 sprays toward the position of the waist-shaped holes 30. The lubricating oil can enter the interior of the gear coupling through the waist-shaped holes 30 to lubricate the inner side of the gear coupling.

[0043] Reference Figure 1-3 The first support bearing 6 and the second support bearing 20 are provided with a bearing oil groove 21, which is arranged in an annular shape to form an oil cavity; the housing 5 is also provided with a bearing connecting oil hole 13, one end of the bearing connecting oil hole 13 is connected to the oil inlet hole 15, and the other end of the bearing connecting oil hole is connected to the bearing oil groove 21, which is used to supply oil to the first support bearing 6 and the second support bearing 20, and can lubricate and cool the first support bearing 6 and the second support bearing 20. A third oil quantity control plug 11 is provided at one end of the bearing connecting oil hole 13 away from the oil inlet hole 15. It is helpful to control the amount of oil that lubricates the first support bearing 6 and the second support bearing 20.

[0044] The implementation principle of the lubrication structure of a gear coupling in the embodiment of the present application is as follows: the gear coupling lubrication device of the present application reasonably uses the pressure oil of the gearbox lubrication system, introduces the lubricating oil into the oil inlet hole 15 through the lubrication pipeline and the oil inlet pipe assembly 14, and then introduces the lubricating oil into the first oil supply hole 3 and the second oil supply hole 23 through the gear sleeve connecting oil hole 4, and sprays the lubricating oil toward the first inner gear sleeve 1, the first outer gear sleeve 10, the second outer gear sleeve 16 and the second inner gear sleeve 25 through the first spray point 28 and the second spray point 27. And oil is supplied to the first support bearing 6 and the second support bearing 20 through the bearing connecting oil hole 13 to lubricate and cool the first support bearing 6 and the second support bearing 20 to achieve multi-point lubrication.

[0045] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A lubrication structure for a gear coupling, characterized in that: It comprises a box body (5), a first mechanism, a second mechanism and an oil inlet pipe assembly (14), wherein the first mechanism and the second mechanism are arranged opposite to each other; The first mechanism comprises a first inner gear sleeve (1), a first outer gear sleeve (10), a first support bearing (6) and a first transmission shaft (7); the first transmission shaft (7) is mounted on the housing (5) via the first support bearing (6); the first outer gear sleeve (10) is coaxially arranged on the first transmission shaft (7); The second mechanism comprises a second inner gear sleeve (25), a second outer gear sleeve (16), a second support bearing (20) and a second transmission shaft (19); the second transmission shaft (19) is mounted on the housing (5) via the second support bearing (20); and the second outer gear sleeve (16) is coaxially arranged on the second transmission shaft (19); The first internal gear sleeve (1) and the second internal gear sleeve (25) are connected to each other; The housing (5) is provided with a lubricating oil groove (22), a first oil supply hole (3), a second oil supply hole (23), a gear sleeve connecting oil hole (4) and an oil inlet hole (15); the lubricating oil groove (22) is arranged around the outer rings of the first support bearing (6) and the second support bearing (20) to form an oil chamber; the gear sleeve connecting oil hole (4) is connected to the oil inlet hole (15); the first oil supply hole (3) and the second oil supply hole (23) are connected in parallel to the gear sleeve connecting oil hole (4); a first spray point (28) is arranged at one end of the first oil supply hole (3) away from the gear sleeve connecting oil hole (4); a second spray point (27) is arranged at one end of the second oil supply hole (23) away from the gear sleeve connecting oil hole (4); the first spray point (28) and the second spray point (27) are arranged toward the first inner gear sleeve (1), the first outer gear sleeve (10), the second outer gear sleeve (16) and the second inner gear sleeve (25); The oil inlet pipe assembly (14) is mounted on the box body (5); the oil inlet pipe assembly (14) is in communication with the oil inlet hole (15) and is externally connected to a lubrication pipeline of the gear box.

2. The lubrication structure of a gear coupling according to claim 1, characterized in that: The housing (5) is also provided with a lubricating oil groove (22), which surrounds the outer rings of the first support bearing (6) and the second support bearing (20) to form an annular oil cavity; the gear sleeve connecting oil hole (4) is arranged along the outer ring of the lubricating oil groove (22), and the end of the gear sleeve connecting oil hole (4) away from the oil inlet hole (15) is connected to the lubricating oil groove (22).

3. The lubrication structure of a gear coupling according to claim 1, characterized in that: A first oil quantity control plug (2) is provided at the first spray point (28), and a second oil quantity control plug (29) is provided at the second spray point (27).

4. The lubrication structure of a gear coupling according to claim 1, characterized in that: The first spray point (28) is directed toward the meshing circle of the first inner gear sleeve (1) and the first outer gear sleeve (10), and toward the meshing circle of the second outer gear sleeve (16) and the second inner gear sleeve (25).

5. The lubrication structure of a gear coupling according to claim 1, characterized in that: A plurality of waist-shaped holes (30) are provided on the wheel ribs (24) of the first outer gear sleeve (10) and the second outer gear sleeve (16), and the second spraying point (27) sprays toward the positions of the waist-shaped holes (30).

6. The lubrication structure of a gear coupling according to claim 1, characterized in that: The first support bearing (6) and the second support bearing (20) are provided with bearing oil grooves (21), and the bearing oil grooves (21) are arranged in an annular shape to form an oil cavity; the housing (5) is also provided with a bearing connecting oil hole (13), one end of the bearing connecting oil hole (13) is connected to the oil inlet hole (15), and the other end of the bearing connecting oil hole (13) is connected to the bearing oil groove (21), so as to supply oil to the first support bearing (6) and the second support bearing (20).

7. The lubrication structure of a gear coupling according to claim 6, characterized in that: A third oil quantity control plug (11) is provided at one end of the bearing connecting oil hole (13) away from the oil inlet hole (15).

8. The lubrication structure of a gear coupling according to claim 1, characterized in that: The second outer gear sleeve (16) and the second inner gear sleeve (25) are connected via a connecting bolt group (26).

9. The lubrication structure of a gear coupling according to claim 1, characterized in that: The oil inlet pipe assembly (14) and the inner wall of the oil inlet hole (15) are threadedly connected.

10. The lubrication structure of a gear coupling according to claim 1, characterized in that: The first external gear sleeve (10) is fixed to the first transmission shaft (7) via a first pressing plate (8) and a first screw (9); the second external gear sleeve (16) is fixed to the second transmission shaft (19) via a second pressing plate (18) and a second screw (17).

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