Special-shaped gearbox oil injection pipe capable of accurately supplying oil
Through the combined structure and connection components of the main pipe and the injection pipe, the problems of complicated processing and lubrication failure of the transmission oil pipe are solved, precise oil supply is achieved, cost reduction and improved the reliability and adaptability of the transmission.
Patent Information
- Application Number
- CN202520927242.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-13
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2035-05-13
AI Technical Summary
The existing transmission oil pipe has a simple structure, complex processing, high cost, and is prone to lubrication failure at high speeds, affecting the reliability and smoothness of the transmission.
The combined structure of the main pipe, bearing injection pipe and gear injection pipe is adopted to achieve quick connection through snap joints and connection components. The oil is diverted to the bearing and gear for precise cooling and lubrication. The high-pressure injection takes away heat and metal particles, forming an oil film to reduce wear.
Accurate lubrication of bearings and gears in the transmission is achieved, reducing processing difficulty and cost, improving adaptability, preventing local overheating and wear, and keeping clean.
Smart Images

Figure CN223089959U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of automotive parts structures, and particularly relates to a special-shaped gearbox spray oil pipe for precise oil supply. Background Technique
[0002] The oil pipe of the gearbox gearbox is the core component of the hydraulic lubrication system, responsible for transporting gearbox oil (ATF or gear oil) to key parts such as gears, bearings, clutches, and valve bodies to ensure lubrication, cooling, and hydraulic power transmission. Its design directly affects the reliability, efficiency, and smoothness of the gearbox.
[0003] With the development of new energy vehicles, the speeds of motors and gears are getting higher and higher. At extremely high speeds (such as when the motor drives the gear > 10,000 rpm), to avoid lubrication failure caused by centrifugal drying of the oil and damage to the components inside the gearbox.
[0004] At present, the common gearbox oil pipe has a simple structure, mostly composed of metal hard pipes, and the hard pipes are mostly connected by welding. The process of making special-shaped complex oil pipes is complex and costly; and during the welding process of the hard pipes, the requirements for welding technology and precision are relatively high, bringing many processing difficulties. Content of the Utility Model
[0005] The technical problem to be solved by the utility model is to overcome the existing defects and provide a special-shaped gearbox spray oil pipe for precise oil supply, which can effectively solve the problems in the background technique.
[0006] To achieve the above purpose, the utility model discloses a special-shaped gearbox spray oil pipe for precise oil supply. The technical scheme adopted is that it includes a main pipe, a bearing spray oil pipe, and a gear spray oil pipe. The bearing spray oil pipe is clamped on the main pipe, and the gear spray oil pipe is also connected to the main pipe through a connecting component; through the cooperation of the main pipe and each spray oil pipe, the oil entering the main pipe is shunted, and the oil is respectively transported to the bearings and gears of the gearbox for precise cooling and lubrication, directly spraying the oil onto the contact surfaces of the gears and bearings to form an oil film, reducing wear and pitting.
[0007] The bearing spray oil pipe includes a buckle joint and a special-shaped pipe. The buckle joint is provided at the opposite end of the special-shaped pipe and the main pipe. A protrusion adapted to the buckle joint is provided on the main pipe. The special-shaped pipe and the main pipe are connected through the cooperation of the buckle joint and the protrusion. An O-ring for sealing is also provided between the special-shaped pipe and the main pipe.
[0008] As a preferred technical solution of the present utility model, a fixed pipe clamp is further provided on the other end of the special-shaped pipe. The fixed pipe clamp is used to fix the special-shaped pipe to the installation box body. The oil fluid takes away the heat generated by the high-speed rotation of the gears and bearings, preventing local overheating. Meanwhile, high-pressure injection can wash away the metal particles generated by friction, keeping the tooth surface and bearings clean.
[0009] As a preferred technical solution of the present utility model, the connection assembly includes a connection sleeve, a connection block and a connection seat. The connection block is installed on the facing ends of the gear oil injection pipe and the main pipe. The main pipe is provided with the connection seat adapted to the connection block. The connection seat and the connection block are fixed by the connection sleeve. By adopting the connection assembly and the snap joint, the main pipe and the oil injection pipe can be quickly connected, reducing costs. At the same time, the pipe orifice orientation of the oil injection pipe can also be adjusted to adapt to gearboxes of different specifications and dimensions, improving the adaptability of the device.
[0010] As a preferred technical solution of the present utility model, the connection sleeve is sleeved on the connection block and is rotatably connected to the connection block. A threaded groove is provided on the inner wall of the connection sleeve, and a threaded section meshing with the threaded groove is provided on the outer wall of the connection seat.
[0011] As a preferred technical solution of the present utility model, the connection block adopts a T-shaped block, including a head and a neck. A limiting block is provided on the facing surface of the head and the connection seat, and a limiting groove adapted to the limiting block is provided on the connection seat. A sealing ring for sealing is further provided between the neck and the connection seat.
[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows: Through the cooperation of the main pipe and each oil injection pipe, the oil fluid entering the main pipe is shunted, and the oil fluid is respectively transported to the bearings and gears of the gearbox for precise cooling and lubrication. The oil fluid is directly sprayed onto the contact surfaces of the gears and bearings to form an oil film, reducing wear and pitting corrosion. The oil fluid takes away the heat generated by the high-speed rotation of the gears and bearings, preventing local overheating. Meanwhile, high-pressure injection can wash away the metal particles generated by friction, keeping the tooth surface and bearings clean.
[0013] In the present utility model, by adopting the connection assembly and the snap joint, the main pipe and the oil injection pipe can be quickly connected, reducing costs. At the same time, the pipe orifice orientation of the oil injection pipe can also be adjusted to adapt to gearboxes of different specifications and dimensions, improving the adaptability of the device. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 is a schematic structural diagram of the present utility model;
[0015] Figure 2 is a schematic diagram of the bearing oil injection pipe of the present utility model;
[0016] Figure 3 Schematic diagram of the gear oil injection pipe of the present utility model;
[0017] Figure 4 Schematic diagram of the connection component of the present utility model.
[0018] In the figure: 1, main pipe; 2, bearing oil injection pipe; 21, snap joint; 22, O-ring; 23, special-shaped pipe; 24, fixed pipe clamp;
[0019] 3, gear oil injection pipe; 4, connection component; 41, connecting sleeve; 42, connecting block; 43, connecting seat; 44, threaded section; 45, sealing ring; 46, threaded groove; 47, limiting block; 48, limiting groove. Specific embodiments
[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model. Embodiment 1
[0021] As Figures 1 to 4 shown, the present utility model discloses a special-shaped gearbox oil injection pipe for precise oil supply. The technical solution adopted is that it includes a main pipe 1, a bearing oil injection pipe 2, and a gear oil injection pipe 3. The bearing oil injection pipe 2 is snap-connected to the main pipe 1; the main pipe 1 is made of plastic material and is integrally injection-molded.
[0022] The bearing oil injection pipe 2 includes a snap joint 21 and a special-shaped pipe 23. The snap joint 21 is provided at the opposite end of the special-shaped pipe 23 and the main pipe 1. A protrusion adapted to the snap joint 21 is provided on the main pipe 1. The special-shaped pipe 23 and the main pipe 1 are connected through the cooperation of the snap joint 21 and the protrusion. An O-ring 22 for sealing is also provided between the special-shaped pipe 23 and the main pipe 1. A fixed pipe clamp 24 is further provided at the other end of the special-shaped pipe 23; the fixed pipe clamp 24 is used to fix the special-shaped pipe 23 to the installation box body.
[0023] The special-shaped pipe 23 of the bearing oil injection pipe 2 is a metal special-shaped pipe processed by bending. The snap joint 21 is a plastic part, and the two parts are fixed by fusion welding. The snap joint 21 has elasticity and can be connected and fixed to the protrusion of the main pipe 1. The fixed pipe clamp 24 fixes it to the installation box body.
[0024] The gear oil injection pipe 3 is also connected to the main pipe 1 through a connection component 4;
[0025] The connecting component 4 includes a connecting sleeve 41, a connecting block 42 and a connecting seat 43. The connecting block 42 is installed on the opposite ends of the gear spray oil pipe 3 and the main pipe 1. The main pipe 1 is provided with the connecting seat 43 adapted to the connecting block 42, and the connecting seat 43 and the connecting block 42 are fixed by the connecting sleeve 41.
[0026] The connecting sleeve 41 is sleeved on the connecting block 42 and is rotatably connected to the connecting block 42. A threaded groove 46 is formed on the inner wall of the connecting sleeve 41, and a threaded section 44 meshing with the threaded groove 46 is formed on the outer wall of the connecting seat 43.
[0027] The connecting block 42 is a T-shaped block, including a head and a neck. A limiting block 47 is provided on the opposite surface of the head and the connecting seat 43. A limiting groove 48 adapted to the limiting block 47 is provided on the connecting seat 43. A sealing ring 45 for sealing is further provided between the neck and the connecting seat 43.
[0028] The working principle of the present utility model: During installation, the buckle joint 21 in the bearing spray oil pipe 2 is aligned with the protrusion on the main pipe 1 and installed. Under the cooperation of the buckle joint 21 and the protrusion, the bearing spray oil pipe 2 and the main pipe 1 are connected, and under the action of the O-ring 22, the interfaces of the two are sealed; and through the fixed pipe clamp 24, the other end of the bearing spray oil pipe 2 is limited; the connection between the bearing spray oil pipe 2 and the main pipe 1 is completed;
[0029] Align the connecting block 42 on the gear spray oil pipe 3 with the connecting seat 43 on the main pipe 1, and align the limiting block 47 and the limiting groove 48 for installation. After the limiting block 47 is inserted into the limiting groove 48, rotate the connecting sleeve 41. Through the meshing relationship between the threaded groove 46 on the connecting sleeve 41 and the threaded section 44 on the connecting seat 43, the connecting sleeve 41 limits the connecting block 42 and the connecting seat 43. Under the action of the sealing ring 45, the sealing performance of the connection between the gear spray oil pipe 3 and the main pipe 1 is ensured, and the connection between the gear spray oil pipe 3 and the main pipe 1 is completed.
[0030] The circuit and mechanical connections involved in the present utility model are common means adopted by those skilled in the art and can obtain technical inspiration through a limited number of experiments, belonging to well-known common sense.
[0031] The components not described in detail in this article are prior art.
[0032] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.
Claims
1. A special-shaped gearbox fuel injection pipe with precise fuel supply, characterized in that: It includes a main pipe (1), a bearing oil spray pipe (2) and a gear oil spray pipe (3). The bearing oil spray pipe (2) is clamped on the main pipe (1), and the gear oil spray pipe (3) is also connected to the main pipe (1) through a connecting component (4). The bearing oil spray pipe (2) includes a snap joint (21) and a special-shaped pipe (23). The snap joint (21) is provided at the opposite ends of the special-shaped pipe (23) and the main pipe (1). A protrusion adapted to the snap joint (21) is provided on the main pipe (1). The special-shaped pipe (23) and the main pipe (1) are connected through the cooperation of the snap joint (21) and the protrusion. An O-ring (22) for sealing is also provided between the special-shaped pipe (23) and the main pipe (1).
2. The special-shaped gearbox fuel injection pipe for precise fuel supply according to claim 1, wherein: A fixed pipe clamp (24) is further provided at the other end of the special-shaped pipe (23). The fixed pipe clamp (24) is used to fix the special-shaped pipe (23) to the installation box body.
3. The special-shaped gearbox fuel injection pipe for precise fuel supply according to claim 1, characterized in that: The connecting component (4) includes a connecting sleeve (41), a connecting block (42) and a connecting seat (43). The connecting block (42) is installed at the opposite ends of the gear oil spray pipe (3) and the main pipe (1). A connecting seat (43) adapted to the connecting block (42) is provided on the main pipe (1). The connecting seat (43) and the connecting block (42) are fixed through the connecting sleeve (41).
4. The special-shaped gearbox fuel injection pipe with precise fuel supply according to claim 3, characterized in that: The connecting sleeve (41) is sleeved on the connecting block (42) and is rotatably connected to the connecting block (42). A thread groove (46) is formed on the inner wall of the connecting sleeve (41), and a thread section (44) meshing with the thread groove (46) is formed on the outer wall of the connecting seat (43).
5. The special-shaped gearbox fuel injection pipe with precise fuel supply according to claim 3, characterized in that: The connecting block (42) is a T-shaped block, including a head and a neck. A limiting block (47) is provided on the opposite surfaces of the head and the connecting seat (43). A limiting groove (48) adapted to the limiting block (47) is provided on the connecting seat (43). A sealing ring (45) for sealing is also provided between the neck and the connecting seat (43).