Heavy-load high-precision gear set

Abstract

The utility model discloses a heavy-load high-precision gear set, which relates to the technical field of gear sets and comprises a transfer case body used for installing the gear set, a sealing cover is fixedly installed on the side face of the transfer case body, and a lubricating assembly is fixedly installed in an inner cavity of the transfer case body. One end of the lubricating assembly extends to the outside of the transfer case body and is fixedly connected with the outer wall of the transfer case body. According to the heavy-load high-precision gear set, a first gear, a second gear, a third gear and a fourth gear can be conveniently lubricated and maintained through the arrangement of the mounting grooves, so that the first gear, the second gear, the third gear and the fourth gear are meshed and rotate more smoothly, and the first gear, the second gear, the third gear and the fourth gear are protected; abrasion of the first gear, the second gear, the third gear and the fourth gear caused by friction is prevented, and the service life of the high-precision gear set is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of gear sets, in particular to a heavy-loaded and high-precision gear set. Background Art

[0002] The gear set is usually installed in the transfer case, which is used to transmit and output the input power. The transfer case is a device that uses the gear set to distribute the power of the engine. It can output the power to the rear axle, or to the front and rear axles at the same time. From this perspective, it can be seen that the transfer case is actually an accessory on the four-wheel drive vehicle. With the development of four-wheel drive technology, the transfer case has been changing, and gradually formed transfer cases of different styles, which are matched on four-wheel drive vehicles with different demands. Their basic principles and functions are also different.

[0003] During the operation of the gear set, it is usually necessary to lubricate and cool the surfaces of each bearing and gear set by flowing lubricating oil. However, splash lubrication is more common in the prior art, which has a poor lubrication effect and is inconvenient to accurately lubricate the bearings and gear sets, resulting in a reduction in the service life of the heavy-loaded and high-precision gear set. For this reason, the utility model provides a heavy-loaded and high-precision gear set to solve the above problems. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a heavy-duty and high-precision gear set to solve the above problems.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: a heavy-duty high-precision gear set, comprising a transfer case body for installing the gear set, a sealing cover is fixedly installed on the side of the transfer case body, a lubrication assembly is fixedly installed in the inner cavity of the transfer case body, one end of the lubrication assembly extends to the outside of the transfer case body and is fixedly connected to the outer wall of the transfer case body, the transfer case body comprises a shell, a first rotating shaft is rotatably installed in the inner cavity of the shell, one end of the first rotating shaft extends to the outer wall of the sealing cover and is rotatably connected to the outer wall of the sealing cover, a first gear is fixedly installed on the side wall of the first rotating shaft, a second gear is meshedly connected to the side wall of the first gear, a second rotating shaft is fixedly installed on the inner wall of the second gear, a third gear is fixedly installed on the surface of the second rotating shaft, a fourth gear is meshedly connected to the side wall of the third gear, and the third rotating shaft is fixedly installed on the inner wall of the fourth gear;

[0006] The lubrication assembly includes a lubricating oil tank, a mounting groove is provided on one side of the lubricating oil tank, and oil outlet blocks are fixedly installed on the side walls of the mounting groove and at the connection between the lubricating oil tank and the first rotating shaft, the second rotating shaft, and the third rotating shaft. One end of the oil outlet block extends to the inner cavity of the lubricating oil tank and is fixedly connected to the inner cavity of the lubricating oil tank. A rotating ball is rotatably installed inside the oil outlet block, and an oil outlet groove is provided on one side of the rotating ball. The oil outlet groove is opened on the surface of the oil outlet block and extends to the interior of the lubricating oil tank.

[0007] Preferably, an oil inlet is fixedly mounted on one end of the lubricating oil tank, and one end of the oil inlet extends to the outer wall of the outer shell and is fixedly connected to the outer wall of the outer shell.

[0008] Preferably, both ends of the second rotating shaft extend to the outer wall of the sealing cover and are rotatably connected to the outer wall of the sealing cover, and one end of the third rotating shaft extends to the outer wall of the housing and is rotatably connected to the surface of the sealing cover.

[0009] Preferably, the third gear, the fourth gear, the first gear and the second gear are all rotatably mounted in the inner cavity of the mounting groove.

[0010] Preferably, the lubrication components are provided in two groups.

[0011] Preferably, the oil outlet blocks, rotating balls and oil outlet grooves are arranged in several groups.

[0012] Preferably, a one-way valve is fixedly installed in the inner cavity of the oil inlet.

[0013] Preferably, a mounting plate is fixedly mounted on the inner wall of the shell.

[0014] Preferably, the side walls of the first rotating shaft, the second rotating shaft and the third rotating shaft are all rotatably mounted on the surface of the mounting plate.

[0015] Preferably, a mounting seat is rotatably mounted on the other end of the first rotating shaft, and the surface of the mounting seat is fixedly mounted on the surface of the lubrication component.

[0016] Beneficial Effects

[0017] The utility model provides a heavy-duty high-precision gear set. Compared with the prior art, it has at least the following beneficial effects:

[0018] The heavy-loaded high-precision gear set facilitates lubrication and maintenance of the first gear, the second gear, the third gear and the fourth gear by setting the mounting groove, so that the meshing and rotation of the first gear, the second gear, the third gear and the fourth gear are smoother, and the first gear, the second gear, the third gear and the fourth gear are protected to prevent wear of the first gear, the second gear, the third gear and the fourth gear due to friction, thereby increasing the service life of the heavy-loaded high-precision gear set. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0020] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0021] Figure 3 It is a schematic diagram of the side section structure of the utility model;

[0022] Figure 4 It is a schematic diagram of the cross-sectional structure at point A of the utility model;

[0023] Figure 5 It is a schematic diagram of the cross-sectional structure at point B of the utility model.

[0024] In the figure: 1. transfer case body; 2. sealing cover; 3. lubrication assembly; 11. housing; 12. first rotating shaft; 13. first gear; 14. mounting seat; 15. second rotating shaft; 16. second gear; 17. third gear; 18. fourth gear; 19. third rotating shaft; 20. mounting plate; 31. lubricating oil tank; 32. oil inlet; 33. one-way valve; 34. mounting groove; 35. oil outlet block; 36. rotating ball; 37. oil outlet groove. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Embodiment 1:

[0027] See also Figure 1-5A heavy-duty high-precision gear set includes a transfer case body 1 for mounting the gear set, a sealing cover 2 is fixedly installed on the side of the transfer case body 1, a lubrication assembly 3 is fixedly installed in the inner cavity of the transfer case body 1, one end of the lubrication assembly 3 extends to the outside of the transfer case body 1 and is fixedly connected to the outer wall of the transfer case body 1, the transfer case body 1 includes a shell 11, a first rotating shaft 12 is rotatably installed in the inner cavity of the shell 11, one end of the first rotating shaft 12 extends to the outer wall of the sealing cover 2 and is rotatably connected to the outer wall of the sealing cover 2, a first gear 13 is fixedly installed on the side wall of the first rotating shaft 12, a mounting seat 14 is rotatably installed on the other end of the first rotating shaft 12, the surface of the mounting seat 14 is fixedly installed on the surface of the lubrication assembly 3, a second gear 16 is meshedly connected to the side wall of the first gear 13, a second rotating shaft 15 is fixedly installed on the inner wall of the second gear 16, a third gear 17 is fixedly installed on the surface of the second rotating shaft 15, and the third gear 13 is meshedly connected to the side wall of the first gear 13. The side wall of the wheel 17 is meshedly connected with the fourth gear 18, and the inner wall of the fourth gear 18 is fixedly installed with the third rotating shaft 19. The lubrication component 3 includes a lubricating oil tank 31, and a mounting groove 34 is provided on one side of the lubricating oil tank 31. The side wall of the mounting groove 34 and the connection between the lubricating oil tank 31 and the first rotating shaft 12, the second rotating shaft 15, and the third rotating shaft 19 are fixedly installed with an oil outlet block 35. One end of the oil outlet block 35 extends to the inner cavity of the lubricating oil tank 31 and is fixedly connected to the inner cavity of the lubricating oil tank 31. A rotating ball 36 is rotatably installed inside the oil outlet block 35, and an oil outlet groove 37 is provided on one side of the rotating ball 36. The oil outlet groove 37 is opened on the surface of the oil outlet block 35 and extends to the inside of the lubricating oil tank 31. The third gear 17, the fourth gear 18, the first gear 13 and the second gear 16 are all rotatably installed in the inner cavity of the mounting groove 34. The lubrication component 3 is provided with two groups, and the oil outlet block 35, the rotating ball 36 and the oil outlet groove 37 are provided with a plurality of groups.

[0028] In this embodiment, the lubricating oil is stored in the inner cavity of the lubricating oil tank 31. When the first rotating shaft 12, the second rotating shaft 15 and the third rotating shaft 19 rotate, the rotating ball 36 is driven to rotate by friction. The lubricating oil inside the lubricating oil tank 31 is accurately applied to the surfaces of the first rotating shaft 12, the second rotating shaft 15 and the third rotating shaft 19 through the rotation of the rotating ball 36. When the equipment is working, the lubricating oil will be continuously applied and added, thereby improving the lubrication and cooling effect of the first rotating shaft 12, the second rotating shaft 15 and the third rotating shaft 19, making the position of the lubrication and cooling more accurate and reducing the waste of the lubricating oil. The setting of the mounting groove 34 is convenient for the first gear 13, The second gear 16, the third gear 17 and the fourth gear 18 are installed, and it is convenient to apply lubricating oil to the first gear 13, the second gear 16, the third gear 17 and the fourth gear 18, so that the meshing and rotation of the first gear 13, the second gear 16, the third gear 17 and the fourth gear 18 are smoother, and the first gear 13, the second gear 16, the third gear 17 and the fourth gear 18 are protected to prevent the first gear 13, the second gear 16, the third gear 17 and the fourth gear 18 from being worn due to friction, thereby improving the service life of the heavy-loaded high-precision gear set, so that the heavy-loaded high-precision gear set has the advantages of simple structure, easy use, flexible operation, strong adaptability, etc.

[0029] Embodiment 2:

[0030] See also Figure 1-5 This embodiment provides a technical solution based on the first embodiment: an oil inlet 32 ​​is fixedly installed at one end of the lubricating oil tank 31, one end of the oil inlet 32 ​​extends to the outer wall of the outer shell 11 and is fixedly connected to the outer wall of the outer shell 11, a one-way valve 33 is fixedly installed in the inner cavity of the oil inlet 32, both ends of the second rotating shaft 15 extend to the outer wall of the sealing cover 2 and are rotatably connected to the outer wall of the sealing cover 2, one end of the third rotating shaft 19 extends to the outer wall of the outer shell 11 and is rotatably connected to the surface of the sealing cover 2, a mounting plate 20 is fixedly installed on the inner wall of the outer shell 11, and the side walls of the first rotating shaft 12, the second rotating shaft 15 and the third rotating shaft 19 are all rotatably mounted on the surface of the mounting plate 20.

[0031] In this embodiment, the installation of the first rotating shaft 12, the second rotating shaft 15 and the third rotating shaft 19 is facilitated by the setting of the mounting plate 20, the addition of lubricating oil is facilitated by the setting of the oil inlet 32, the lubricating oil is prevented from flowing out through the oil inlet 32 ​​by the setting of the one-way valve 33, the power is conveniently transmitted through the first rotating shaft 12, the second rotating shaft 15 and the third rotating shaft 19, and the transfer case body 1 is conveniently closed by the setting of the sealing cover 2.

[0032] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A heavy-duty, high-precision gear set, comprising a transfer case body (1) for mounting the gear set, characterized in that: A sealing cover (2) is fixedly mounted on the side of the transfer case body (1), a lubrication assembly (3) is fixedly mounted in the inner cavity of the transfer case body (1), and one end of the lubrication assembly (3) extends to the outside of the transfer case body (1) and is fixedly connected to the outer wall of the transfer case body (1); The transfer case body (1) comprises a shell (11), a first rotating shaft (12) is rotatably mounted in the inner cavity of the shell (11), one end of the first rotating shaft (12) extends to the outer wall of the sealing cover (2) and is rotatably connected to the outer wall of the sealing cover (2), a first gear (13) is fixedly mounted on the side wall of the first rotating shaft (12), a second gear (16) is meshedly connected to the side wall of the first gear (13), a second rotating shaft (15) is fixedly mounted on the inner wall of the second gear (16), a third gear (17) is fixedly mounted on the surface of the second rotating shaft (15), a fourth gear (18) is meshedly connected to the side wall of the third gear (17), and a third rotating shaft (19) is fixedly mounted on the inner wall of the fourth gear (18); The lubrication assembly (3) comprises a lubricating oil tank (31), one side of which is provided with a mounting groove (34), and the side wall of the mounting groove (34) and the connection between the lubricating oil tank (31) and the first rotating shaft (12), the second rotating shaft (15), and the third rotating shaft (19) are all fixedly mounted with an oil outlet block (35), one end of the oil outlet block (35) extends to the inner cavity of the lubricating oil tank (31) and is fixedly connected to the inner cavity of the lubricating oil tank (31), a rotating ball (36) is rotatably mounted inside the oil outlet block (35), one side of the rotating ball (36) is provided with an oil outlet groove (37), and the oil outlet groove (37) is opened on the surface of the oil outlet block (35) and extends to the inside of the lubricating oil tank (31).

2. A heavy-duty high-precision gear set according to claim 1, characterized in that: An oil inlet (32) is fixedly mounted on one end of the lubricating oil tank (31), and one end of the oil inlet (32) extends to the outer wall of the outer shell (11) and is fixedly connected to the outer wall of the outer shell (11).

3. A heavy-duty high-precision gear set according to claim 1, characterized in that: Both ends of the second rotating shaft (15) extend to the outer wall of the sealing cover (2) and are rotatably connected to the outer wall of the sealing cover (2), and one end of the third rotating shaft (19) extends to the outer wall of the housing (11) and is rotatably connected to the surface of the sealing cover (2).

4. A heavy-duty high-precision gear set according to claim 1, characterized in that: The third gear (17), the fourth gear (18), the first gear (13) and the second gear (16) are all rotatably mounted in the inner cavity of the mounting groove (34).

5. A heavy-duty high-precision gear set according to claim 1, characterized in that: The lubrication components (3) are provided in two groups.

6. A heavy-duty high-precision gear set according to claim 1, characterized in that: The oil outlet blocks (35), the rotating balls (36) and the oil outlet grooves (37) are arranged in several groups.

7. A heavy-duty high-precision gear set according to claim 2, characterized in that: A one-way valve (33) is fixedly installed in the inner cavity of the oil inlet (32).

8. A heavy-duty high-precision gear set according to claim 1, characterized in that: A mounting plate (20) is fixedly mounted on the inner wall of the housing (11).

9. A heavy-duty high-precision gear set according to claim 8, characterized in that: The side walls of the first rotating shaft (12), the second rotating shaft (15) and the third rotating shaft (19) are all rotatably mounted on the surface of the mounting plate (20).

10. A heavy-duty high-precision gear set according to claim 1, characterized in that: A mounting seat (14) is rotatably mounted on the other end of the first rotating shaft (12), and a surface of the mounting seat (14) is fixedly mounted on the surface of the lubrication component (3).

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