Engine cylinder hole lubricating device
By driving the nozzle to rotate through an electric push rod and gear system, combined with a turntable oil receiving structure, the problem of uneven lubrication of engine cylinder bores is solved, achieving all-round uniform lubrication and environmental protection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN LAISEN TECHNOLOGY CO LTD
- Filing Date
- 2025-03-19
- Publication Date
- 2026-04-28
AI Technical Summary
In existing technologies for lubricating engine cylinder bores, evenly distributed nozzles cannot guarantee uniform spraying of lubricating oil around the entire circumference of the cylinder bore wall, and the spraying effect of centrally positioned circumferential micro-orifice nozzles is unstable and limited by air pressure and cylinder bore diameter.
An electric push rod is used to drive the nozzle into the cylinder bore. The motor drives the drive gear and driven gear to mesh, making the nozzle rotate. All-round uniform lubrication is achieved through a rotary joint and a damping shaft. The overflowing lubricating oil is collected by a turntable.
It achieves all-round uniform lubrication of engine cylinder bores, avoids lubricating oil overflow and pollution of the work area, and improves lubrication effect and efficiency.
Smart Images

Figure CN224167781U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of engine assembly technology, specifically to an engine cylinder bore lubrication device. Background Technology
[0002] To ensure that the piston connecting rod can be smoothly assembled into the cylinder bore of the engine block during engine assembly, a special spraying device needs to be installed on the engine assembly line to spray oil to lubricate the inner wall of the cylinder bore.
[0003] In existing technologies for lubricating engine cylinder bores, lubricating oil is typically applied using uniformly distributed nozzles or centrally positioned circumferential micro-orifice nozzles. However, uniformly distributed nozzles can only ensure that lubricating oil is sprayed at a few fixed points on the inner wall of the bore, and cannot guarantee that lubricating oil is sprayed evenly along the circumference of the entire bore wall. Although centrally positioned circumferential micro-orifice nozzles can ensure that lubricating oil is sprayed almost evenly along the circumference of the bore wall, the oil spraying effect is unstable due to limitations in air pressure and bore diameter. Therefore, an engine cylinder bore lubrication device is proposed. Utility Model Content
[0004] In view of the shortcomings of the prior art, the present invention provides an engine cylinder bore lubrication device to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an engine cylinder bore lubrication device, comprising a base, a top frame fixedly connected to the top outer surface of the base, an electric push rod fixedly mounted on the bottom outer surface of the top frame, an oil supply pipe fixedly connected to the output end of the electric push rod, an oil inlet pipe provided at one end of the oil supply pipe, a nozzle fixedly connected to one end of the oil inlet pipe, a driven gear fixedly sleeved on the outer surface of the oil inlet pipe, a connecting plate fixedly sleeved on the outer surface of the oil supply pipe, a mounting bracket fixedly connected to the bottom outer surface of the connecting plate, a motor fixedly mounted on the outer surface of the mounting bracket, a driving gear fixedly connected to the output end of the motor, and the driving gear movably meshing with the outer surface of the driven gear.
[0006] Furthermore, a rotating shaft is rotatably connected to the top outer surface of the base, a rotating plate is fixedly sleeved on the outer surface of the rotating shaft, and an oil receiving tray is provided on the outer surface of the rotating plate.
[0007] Furthermore, one end of the oil pipeline is connected to a rotary joint, and the other end of the rotary joint is connected to the oil inlet pipeline.
[0008] Furthermore, a positioning seat is fixedly connected to the top outer surface of the rotating plate, and a positioning block is fixedly connected to the bottom outer surface of the oil receiving tray. A positioning groove adapted to the positioning block is opened on the outer surface of the positioning seat.
[0009] Furthermore, the end of the oil delivery pipe away from the oil inlet pipe is fixedly connected to a conveying pipe, which is fixedly connected to the output end of an external oil pump. The conveying pipe is a telescopic flexible hose.
[0010] Furthermore, the rotating shaft is a damping shaft, and when the oil receiving plate rotates to below the nozzle, the center of the oil receiving plate corresponds to the center of the nozzle.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] 1. This engine cylinder bore lubrication device uses an electric push rod to drive a nozzle into the engine cylinder bore. The motor drives a drive gear, which in turn engages with a driven gear and a rotary joint, causing the oil inlet pipe to rotate the nozzle. This provides all-around and uniform lubrication to the engine cylinder bore, improving the lubrication effect.
[0013] 2. The engine cylinder bore lubrication device uses a turntable and a damping shaft to rotate the oil receiving plate to below the nozzle, collecting the lubricating oil overflowing from the nozzle and preventing the lubricating oil from affecting the work environment. Attached Figure Description
[0014] Figure 1 This is a front view structural diagram of the present invention;
[0015] Figure 2 This is a schematic diagram of the structure of this utility model from below;
[0016] Figure 3 This utility model Figure 1 Enlarged structural diagram at point A in the middle;
[0017] Figure 4 This is a schematic diagram of the exploded structure of the rotating plate and oil receiving tray of this utility model.
[0018] In the diagram: 1. Base; 2. Top frame; 3. Electric push rod; 4. Oil supply pipe; 5. Oil inlet pipe; 6. Connecting plate; 7. Motor; 8. Driven gear; 9. Driven gear; 10. Rotary joint; 11. Nozzle; 12. Rotating shaft; 13. Rotating plate; 14. Oil receiving tray; 15. Positioning seat; 16. Positioning block. Detailed Implementation
[0019] 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.
[0020] Example 1:
[0021] Please refer to the following: Figures 1-4 This utility model provides a technical solution: an engine cylinder bore lubrication device, including a base 1, a top bracket 2 fixedly connected to the top outer surface of the base 1, an electric push rod 3 fixedly mounted on the bottom outer surface of the top bracket 2, an oil supply pipe 4 fixedly connected to the output end of the electric push rod 3, an oil inlet pipe 5 provided at one end of the oil supply pipe 4, a nozzle 11 fixedly connected to one end of the oil inlet pipe 5, a driven gear 8 fixedly sleeved on the outer surface of the oil inlet pipe 5, a connecting plate 6 fixedly sleeved on the outer surface of the oil supply pipe 4, a mounting bracket fixedly connected to the bottom outer surface of the connecting plate 6, and a motor 7 fixedly mounted on the outer surface of the mounting bracket. The output end is fixedly connected to a drive gear 9, which meshes with the outer surface of the driven gear 8. Specifically, when it is necessary to inject oil to lubricate the engine cylinder bore, the engine cylinder block is placed above the base 1. The electric push rod 3 works, which drives the oil supply pipe 4 so that the nozzle 11 extends into the engine cylinder bore. The lubricating oil is delivered to the nozzle 11 and sprayed out through an external oil pump. The motor 7 works, which drives the drive gear 9 to rotate. The drive gear 9 drives the driven gear 8 to rotate, which causes the oil inlet pipe 5 to rotate, thereby causing the nozzle 11 to rotate and the lubricating oil to be sprayed evenly into the engine cylinder bore.
[0022] In this embodiment, a rotating shaft 12 is rotatably connected to the top outer surface of the base 1, and a rotating plate 13 is fixedly sleeved on the outer surface of the rotating shaft 12. An oil receiving tray 14 is provided on the outer surface of the rotating plate 13. Specifically, force is applied to the oil receiving tray 14, causing the rotating plate 13 to rotate under the action of the rotating shaft 12, so that the oil receiving tray 14 rotates to below the nozzle 11.
[0023] In this embodiment, one end of the oil supply pipe 4 is connected to a rotary joint 10, and the other end of the rotary joint 10 is connected to the oil inlet pipe 5. Specifically, the rotary joint 10 enables relative rotation between the oil supply pipe 4 and the oil inlet pipe 5.
[0024] In this embodiment, a positioning seat 15 is fixedly connected to the top outer surface of the rotating plate 13, and a positioning block 16 is fixedly connected to the bottom outer surface of the oil receiving tray 14. The outer surface of the positioning seat 15 is provided with a positioning groove that matches the positioning block 16. Specifically, the positioning block 16 is inserted into the positioning groove to connect with the oil receiving tray 14, so that the oil receiving tray 14 is mounted on the rotating plate 13 and it is convenient to remove the oil receiving tray 14 to recover the lubricating oil in the oil receiving tray 14.
[0025] In this embodiment, the end of the oil supply pipe 4 away from the oil inlet pipe 5 is fixedly connected to a delivery pipe. The delivery pipe is fixedly connected to the output end of the external oil pump. The delivery pipe is a telescopic hose. Specifically, the external oil pump delivers lubricating oil into the delivery pipe, and the telescopic delivery pipe causes the electric push rod 3 to extend and retract accordingly when it is working.
[0026] In this embodiment, the rotating shaft 12 is a damping shaft. When the oil receiving plate 14 rotates to below the nozzle 11, the center of the oil receiving plate 14 corresponds to the center of the nozzle 11. Specifically, the damping rotating shaft 12 makes the rotating shaft 12 able to rotate under a certain external force and remain in a certain position.
[0027] Working Principle: When using this invention, if oil spraying is required to lubricate the engine cylinder bore, the engine cylinder block is placed above the base 1. The electric push rod 3 operates, driving the oil supply pipe 4 so that the nozzle 11 extends into the engine cylinder bore. The external oil pump delivers lubricating oil to the nozzle 11 for spraying. The motor 7 operates, driving the drive gear 9 to rotate, which in turn drives the driven gear 8 to rotate, causing the oil inlet pipe 5 to rotate, thereby rotating the nozzle 11. This ensures that the lubricating oil is evenly sprayed into the engine cylinder bore. After the lubricating oil is sprayed, the electric push rod 3 drives the oil supply pipe 4 to reset, and then applies force to the oil receiving pan 14, causing the oil receiving pan 14 to rotate below the nozzle 11. The oil receiving pan 14 collects the overflowing lubricating oil, preventing it from affecting the work environment. When the lubricating oil in the oil receiving pan 14 reaches a certain level, the oil receiving pan 14 is removed, allowing the positioning block 16 to disengage from the positioning groove.
[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An engine cylinder bore lubrication device, comprising a base (1), characterized in that: A top frame (2) is fixedly connected to the top outer surface of the base (1). An electric push rod (3) is fixedly installed on the bottom outer surface of the top frame (2). An oil supply pipe (4) is fixedly connected to the output end of the electric push rod (3). An oil inlet pipe (5) is provided at one end of the oil supply pipe (4). A nozzle (11) is fixedly connected to one end of the oil inlet pipe (5). A driven gear (8) is fixedly sleeved on the outer surface of the oil supply pipe (4). A connecting plate (6) is fixedly sleeved on the outer surface of the connecting plate (6). A mounting bracket is fixedly connected to the bottom outer surface of the connecting plate (6). A motor (7) is fixedly installed on the outer surface of the mounting bracket. A drive gear (9) is fixedly connected to the output end of the motor (7). The drive gear (9) and the driven gear (8) are movably meshed.
2. The engine cylinder bore lubrication device according to claim 1, characterized in that: The top outer surface of the base (1) is rotatably connected to a rotating shaft (12), and a rotating plate (13) is fixedly sleeved on the outer surface of the rotating shaft (12). An oil receiving tray (14) is provided on the outer surface of the rotating plate (13).
3. The engine cylinder bore lubrication device according to claim 1, characterized in that: One end of the oil pipeline (4) is connected to a rotary joint (10), and the other end of the rotary joint (10) is connected to the oil inlet pipe (5).
4. The engine cylinder bore lubrication device according to claim 2, characterized in that: The top outer surface of the rotating plate (13) is fixedly connected to a positioning seat (15), and the bottom outer surface of the oil receiving tray (14) is fixedly connected to a positioning block (16). The outer surface of the positioning seat (15) is provided with a positioning groove that matches the positioning block (16).
5. The engine cylinder bore lubrication device according to claim 1, characterized in that: The oil delivery pipe (4) is fixedly connected to a conveying pipe at one end away from the oil inlet pipe (5). The conveying pipe is fixedly connected to the output end of an external oil pump. The conveying pipe is a telescopic flexible hose.
6. The engine cylinder bore lubrication device according to claim 2, characterized in that: The rotating shaft (12) is a damping shaft. When the oil receiving plate (14) rotates to below the nozzle (11), the center of the oil receiving plate (14) corresponds to the center of the nozzle (11).