A kind of for right-angle gear drive box
By integrating an active lubrication system, the right-angle gear transmission box is precisely lubricated using a U-shaped oil injection pipe and oil spraying assembly, which solves the problem of insufficient lubrication of the meshing tooth surfaces, significantly reduces friction loss and temperature rise, and extends equipment life.
Patent Information
- Application Number
- CN202521623784.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-31
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-07-31
AI Technical Summary
Existing right-angle gear transmission boxes suffer from lubrication failure of meshing tooth surfaces during operation. Traditional lubrication methods cannot effectively cover the vertically arranged meshing tooth surfaces, and the oil is thrown away from critical areas during high-speed operation, resulting in accelerated wear and shortened equipment life.
It adopts an integrated active lubrication system, including a U-shaped oil injection pipe and an oil injection assembly. Through a gear pump and actuation assembly, it achieves precise spraying of lubricating oil to cover the meshing area, and is equipped with a filter assembly to maintain oil cleanliness and dynamically compensate for lubrication pressure.
This achieves directional oil coverage on the gear meshing surface, reducing friction loss and temperature rise, and extending the service life of the gear assembly.
Smart Images
Figure CN224679997U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of gear transmission box technology, specifically to a right-angle gear transmission box. Background Technology
[0002] Existing right-angle gear transmissions commonly face the technical challenge of lubrication failure on the meshing tooth surfaces during operation. The main reason for this is the inherent defects of traditional lubrication methods due to their unique vertical transmission structure: on the one hand, conventional oil immersion lubrication cannot ensure uniform coverage of the vertically arranged meshing tooth surfaces; on the other hand, the centrifugal force generated during high-speed operation causes the oil to be thrown away from the critical meshing area, and splash lubrication alone cannot form a stable lubricating film. This insufficient lubrication accelerates gear wear, reduces transmission efficiency, and significantly shortens the equipment's service life. Therefore, we propose a method for right-angle gear transmissions. Utility Model Content
[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide a right-angle gear transmission box that can accurately lubricate the meshing tooth surfaces of the gears, which can effectively solve the problems in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a right-angle gear transmission box, comprising a mounting box and an oil filling assembly; Mounting box: Rotary holes are provided on the upper and right sides. A rotating shaft is rotatably connected inside the rotating holes. A conical gear ring is fixed on the circumferential surface of the rotating shaft. Both conical gear rings are located inside the mounting box and mesh with each other. An actuating component is installed on the lower side inside the mounting box, and an oil injection component is installed on the left side inside the mounting box. The lubrication assembly includes a gear pump, a connecting pipe, a fixed housing, and an oil outlet pipe. The gear pump is installed at the lower left side of the mounting housing. A connecting pipe is fixed in the oil outlet of the gear pump. An installation port is provided on the left side of the mounting housing, and a fixed housing is fixed inside the installation port. The upper end of the connecting pipe is connected to an oil inlet located on the lower side of the fixed housing. An oil outlet is provided on the upper side of the fixed housing, and an oil outlet pipe is fixed inside the oil outlet. The upper end of the oil outlet pipe is connected to the oil injection assembly. A filter assembly is installed inside the fixed housing. The lubrication assembly injects lubricating oil from inside the mounting housing into the U-shaped lubrication pipe.
[0005] Furthermore, the oil injection assembly includes a fixing strip and a U-shaped oil injection pipe. Two corresponding fixing strips are fixed on the left side of the mounting box, and fixing holes are opened on the right side of the fixing strips. U-shaped oil injection pipes are fixed inside the two fixing holes. The two ends of the U-shaped oil injection pipe correspond to the meshing parts of the two bevel gear rings. The oil outlet pipe is fixed on the circumferential surface of the U-shaped oil injection pipe and is connected to the U-shaped oil injection pipe. By setting the U-shaped oil injection pipe, lubricating oil is sprayed onto the meshing parts of the two bevel gear rings.
[0006] Furthermore, the filter assembly includes a threaded disc, a rotating plate, and an arc-shaped mesh. The arc-shaped mesh is installed inside the fixed box, and a threaded disc is fixed to the left end of the arc-shaped mesh. The threaded disc is threadedly connected to the left end inside the fixed box, and a rotating plate is fixed to the left end of the threaded disc. The arc-shaped mesh corresponds to the oil outlet pipe. The filter assembly filters the lubricating oil.
[0007] Furthermore, the actuating assembly includes a connecting rod, a gear ring, and a gear. The lower end of the upper rotating shaft is fixed with a connecting rod, and a gear ring is fixed on the circumferential surface of the connecting rod. A gear is fixed on the power shaft of the gear pump, and the gear meshes with the gear ring. The actuating assembly drives the gear pump to work.
[0008] Furthermore, an oil injection hole is provided on the front side of the mounting box, and a sealing plate is provided inside the oil injection hole. The sealing plate is connected to the mounting box by four fastening bolts, and the mounting box is sealed by setting the sealing plate.
[0009] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention, used in right-angle gear transmission boxes, has the following advantages: By integrating an active lubrication system, directional oil coverage of the gear meshing surface is achieved, effectively solving the problem of oil film breakage caused by centrifugal force in traditional lubrication methods. The precise injection design of the U-shaped oil injection pipe ensures that the lubricating oil is evenly distributed in the contact area of the gear surface, significantly reducing friction loss and local temperature rise. The modular structure of the filter component can continuously intercept oil impurities and maintain the cleanliness of the lubricating medium. Combined with the dynamic pressure compensation mechanism of the gear pump, it ensures a continuous and stable oil supply to the lubrication system under high-speed operating conditions, extending the service life of the gear components. Attached Figure Description
[0010] Figure 1 This is a schematic diagram of the front structure of this utility model; Figure 2 This is a schematic diagram of the toggle assembly structure of this utility model; Figure 3 This is a schematic diagram of the oil injection component structure of this utility model; Figure 4 This is a schematic diagram of the filter assembly structure of this utility model.
[0011] In the diagram: 1. Mounting box, 2. Shaft, 3. Injection assembly, 31. Fixing strip, 32. U-shaped oil injection pipe, 4. Injection assembly, 41. Gear pump, 42. Connecting pipe, 43. Fixing box, 44. Oil outlet pipe, 5. Filter assembly, 51. Threaded disc, 52. Rotating plate, 53. Arc-shaped mesh, 6. Actuating assembly, 61. Connecting rod, 62. Gear ring, 63. Gear, 7. Conical gear ring, 8. Sealing plate, 9. Fastening bolt. Detailed Implementation
[0012] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0013] Please see Figure 1-4 This embodiment provides a technical solution: a right-angle gear transmission box, including a mounting box 1 and an oil injection assembly 4; Mounting box 1: Rotary holes are provided on the upper and right sides. A rotating shaft 2 is rotatably connected inside the rotating holes. A conical gear ring 7 is fixed on the circumference of the rotating shaft 2. Both conical gear rings 7 are located inside the mounting box 1 and mesh with each other. A toggle assembly 6 is installed on the lower side inside the mounting box 1. An oil injection assembly 3 is installed on the left side inside the mounting box 1. The oil injection assembly 3 includes a fixing strip 31 and a U-shaped oil injection pipe 32. Two corresponding fixing strips 31 are fixed on the left side of the mounting box 1. Fixing holes are provided on the right side of the fixing strips 31. U-shaped oil injection pipes 32 are fixed inside the two fixing holes. The two ends of 2 correspond to the meshing points of the two conical gear rings 7. The oil outlet pipe 44 is fixed on the circumferential surface of the U-shaped oil injection pipe 32. The oil outlet pipe 44 is connected to the U-shaped oil injection pipe 32. The actuating component 6 includes a connecting rod 61, a gear ring 62 and a gear 63. The lower end of the upper rotating shaft 2 is fixed with the connecting rod 61. The gear ring 62 is fixed on the circumferential surface of the connecting rod 61. The gear 63 is fixed on the power shaft of the gear pump 41. The gear 63 meshes with the gear ring 62. The actuating component 6 drives the gear pump 41 to work. The U-shaped oil injection pipe 32 sprays lubricating oil to the meshing points of the two conical gear rings 7. Oil injection assembly 4 includes a gear pump 41, a connecting pipe 42, a mounting box 43, and an oil outlet pipe 44. The gear pump 41 is installed at the lower left side of the mounting box 1. The connecting pipe 42 is fixed in the oil outlet of the gear pump 41. An installation port is provided on the left side of the mounting box 1, and the mounting box 43 is fixed inside the installation port. The upper end of the connecting pipe 42 is connected to the oil inlet provided on the lower side of the mounting box 43. An oil outlet is provided on the upper side of the mounting box 43, and an oil outlet pipe 44 is fixed inside the oil outlet. The upper end of the oil outlet pipe 44 is connected to the oil injection assembly 3. The mounting box 43... The internal filter assembly 5 includes a threaded disc 51, a rotating plate 52, and an arc-shaped mesh 53. The arc-shaped mesh 53 is installed inside the fixed box 43. The threaded disc 51 is fixed to the left end of the arc-shaped mesh 53. The threaded disc 51 is threadedly connected to the left end of the fixed box 43. The rotating plate 52 is fixed to the left end of the threaded disc 51. The arc-shaped mesh 53 corresponds to the oil outlet pipe 44. The filter assembly 5 filters the lubricating oil, and the oil injection assembly 4 injects the lubricating oil inside the installation box 1 into the U-shaped oil injection pipe 32.
[0014] Among them: an oil injection hole is provided on the front side of the mounting box 1, and a sealing plate 8 is provided inside the oil injection hole. The sealing plate 8 is connected to the mounting box 1 by four fastening bolts 9, and the mounting box 1 is sealed by setting the sealing plate 8.
[0015] The working principle of the right-angle gear transmission box provided by this utility model is as follows: The right-angle gear transmission box inputs power through the upper rotating shaft 2, driving the bevel gear ring 7 to achieve 90° vertical transmission. The upper rotating shaft 2 drives the gear ring 62 to rotate through the connecting rod 61, thereby driving the gear pump 41 to work, drawing lubricating oil from the bottom of the mounting box and delivering it to the fixed box 43 through the connecting pipe 42. After the oil is filtered through the detachable arc-shaped mesh 53, it is sprayed onto the meshing part of the bevel gear ring 7 through the U-shaped oil injection pipe 32, covering the meshing area. The filter assembly 5 adopts a threaded screw-out design, and the filter screen can be quickly replaced by rotating the rotating plate 52. During system operation, dynamic lubrication and oil self-cleaning are completed simultaneously, achieving precise oil supply and effectively solving the problems of centrifugal oil spillage and uneven coverage in traditional lubrication.
[0016] It is worth noting that the gear pump 41 disclosed in the above embodiments can be an HGP-20A type internal gear pump, and the arc-shaped mesh 53 is made of 304 stainless steel.
[0017] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A gearbox for right-angle gear transmission, characterized in that: Includes mounting box (1) and oil filling assembly (4); Mounting box (1): Rotary holes are provided on the upper and right sides. A rotating shaft (2) is rotatably connected inside the rotating holes. A conical gear ring (7) is fixed on the circumferential surface of the rotating shaft (2). The two conical gear rings (7) are located inside the mounting box (1) and mesh with each other. A toggle assembly (6) is installed on the lower side inside the mounting box (1). An oil injection assembly (3) is installed on the left side inside the mounting box (1). Oil injection assembly (4): includes a gear pump (41), a connecting pipe (42), a fixed box (43) and an oil outlet pipe (44). The gear pump (41) is installed at the lower left side of the mounting box (1). The connecting pipe (42) is fixed in the oil outlet hole of the gear pump (41). An installation port is opened on the left side of the mounting box (1). The fixed box (43) is fixed inside the installation port. The upper end of the connecting pipe (42) is connected to the oil inlet provided on the lower side of the fixed box (43). An oil outlet hole is provided on the upper side of the fixed box (43). An oil outlet pipe (44) is fixed inside the oil outlet hole. The upper end of the oil outlet pipe (44) is connected to the oil injection assembly (3). A filter assembly (5) is installed inside the fixed box (43).
2. A right-angle gear transmission box according to claim 1, characterized in that: The oil injection assembly (3) includes a fixing strip (31) and a U-shaped oil injection pipe (32). Two corresponding fixing strips (31) are fixed on the left side of the mounting box (1). The right side of the fixing strip (31) is provided with a fixing hole. The U-shaped oil injection pipe (32) is fixed inside the two fixing holes. The two ends of the U-shaped oil injection pipe (32) correspond to the meshing points of the two bevel gear rings (7). The oil outlet pipe (44) is fixed on the circumferential surface of the U-shaped oil injection pipe (32). The oil outlet pipe (44) is connected to the U-shaped oil injection pipe (32).
3. A right-angle gear transmission box according to claim 1, characterized in that: The filter assembly (5) includes a threaded disc (51), a rotating plate (52) and an arc-shaped mesh (53). The arc-shaped mesh (53) is provided inside the fixed box (43). The threaded disc (51) is fixed to the left end of the arc-shaped mesh (53). The threaded disc (51) is threadedly connected to the left end inside the fixed box (43). The rotating plate (52) is fixed to the left end of the threaded disc (51). The arc-shaped mesh (53) corresponds to the oil outlet pipe (44).
4. A right-angle gear transmission box according to claim 1, characterized in that: The actuating assembly (6) includes a connecting rod (61), a gear ring (62) and a gear (63). The lower end of the upper rotating shaft (2) is fixed with the connecting rod (61). The gear ring (62) is fixed on the circumferential surface of the connecting rod (61). The gear (63) is fixed on the power shaft of the gear pump (41). The gear (63) meshes with the gear ring (62).
5. A right-angle gear transmission box according to claim 1, characterized in that: The front side of the mounting box (1) is provided with an oil injection hole, and a sealing plate (8) is provided inside the oil injection hole. The sealing plate (8) is connected to the mounting box (1) by four fastening bolts (9).