Novel plug with auxiliary pressure regulation function
By introducing an auxiliary pressure regulating mechanism into the oil channel blocking structure, and automatically adjusting the lubricant leakage amount by using the oil drain pipe and the plugging pressure regulating spring, the problem that the oil channel blocking structure in the prior art cannot maintain stable lubricant pressure, and the difference is achieved The effect of keeping the lubricant pressure within the normal range under working conditions.
Patent Information
- Application Number
- CN202420265424.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-02
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-02-02
AI Technical Summary
The existing oil passage blockage structure cannot maintain a stable lubricant pressure at all times under different operating conditions of the engine, resulting in the problem of high or low lubricant pressure when the engine load changes.
Design a new type of blocking structure with auxiliary pressure regulation, including the oil passage shell and oil pan. The blocking mechanism at one end of the oil passage cavity includes a detachable oil drain pipe and a blocking pressure regulation spring. The leakage amount will be automatically adjusted when the lubricating oil pressure changes. , ensure that the lubricant oil pressure is within the normal range.
Effectively prevent lubricant leakage, and automatically adjust the amount of lubricant leakage when the load changes to ensure that all components of the engine are fully lubricated and avoid the situation where the lubricant oil pressure is too high or low.
Smart Images
Figure CN222142681U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of oil channel plugging, and in particular to a new type of plugging with auxiliary pressure regulation. Background Art
[0002] When producing the main oil channel, the casting process requires adding a sand cleaning process hole outside the cavity, but the hole is not used in actual work, so a special plug needs to be designed to block it to prevent the loss of lubricating oil in the cavity and maintain the stability of the lubricating oil pressure to protect the engine.
[0003] Previous oil channel blocking structures, such as Figure 1-Figure 3 As shown, a main oil channel plug 4 is designed at one end of the oil channel cavity of the oil channel housing 1, and two pressure plate bolts 6 are used to fix the plugging pressure plate 5 at the main oil channel plug 4 and the outer shell of the oil channel housing 1, thereby completing the plugging of the oil channel cavity end of the oil channel housing 1.
[0004] However, the above-mentioned original structure has a single blocking function, which only prevents the lubricating oil from leaking out, and has no other extended functions. The engine cannot always ensure that it works under a stable lubricating oil pressure under different working conditions. Summary of the invention
[0005] In order to overcome the deficiency that the original oil channel cavity plugging structure cannot always ensure working under stable lubricating oil pressure when the engine is in different working conditions, the embodiment of the present application provides a new plug with auxiliary pressure regulation, which can keep the lubricating oil pressure within a normal range.
[0006] The technical solution adopted by the embodiment of the present application to solve the technical problem is:
[0007] A new plug with auxiliary pressure regulation includes an oil channel housing and an oil pan, wherein the oil channel housing and the oil pan are respectively provided with an oil channel cavity and an oil pan oil drain channel, and one end of the oil channel cavity is sealed with a plugging mechanism;
[0008] The blocking mechanism includes a blocking head piece that blocks one end of the oil channel cavity, the outer end of the blocking head piece is detachably connected to an oil drain pipe, the oil drain pipe is provided with an oil drain channel that can be connected to the oil drain channel of the oil pan, and a blocking pressure regulating spring is also provided at the connection between the blocking head piece and the oil drain pipe. When the blocking head piece is pushed by the lubricating oil pressure, it moves outward, the blocking pressure regulating spring is compressed, and the oil channel cavity and the oil drain channel of the oil drain pipe are connected.
[0009] Furthermore, the plugging head comprises an outer plug arranged at one end of the oil channel cavity, a piston is arranged inside the outer plug, a piston oil leakage channel connected to the oil leakage channel of the oil leakage pipe is opened on the piston, and the outer end of the piston is in contact with the plugging pressure regulating spring.
[0010] Furthermore, an annular expansion groove is radially opened outward at the inner end of the inner cavity of the outer plug. When the lubricating oil pressure is too high, the piston is squeezed to move forward, and the oil enters the piston oil drain channel through the annular expansion groove.
[0011] Furthermore, an annular slope A opening outward is provided at the inner end of the inner cavity of the outer plug, and an annular slope B matching the annular slope A is provided at the inner end of the piston.
[0012] Furthermore, the blocking mechanism also includes a fixing member;
[0013] The fixing member is specifically a long screw rod fixed to the outside of the end of the oil drain pipe, and a screw hole matched with the long screw rod is also provided on the side wall of the outer end of the outer plug.
[0014] The main functions of the improved oil cavity plugging in this application are as follows:
[0015] 1. Seal the process holes of the oil channel housing due to casting needs to effectively prevent the leakage of lubricating oil.
[0016] 2. The new plug can keep the lubricating oil pressure within the normal range. When the engine is running, the lubricating oil needs to flow along the lubrication system at a certain pressure to achieve the purpose of lubricating various parts. The new plug can adjust the oil capacity in the oil chamber, keep the oil pressure within the normal range, and ensure that all parts of the engine are fully lubricated. For example, when the engine load increases and the speed increases, the lubricating oil pressure is too high, and the plug head in the new plug will automatically be squeezed forward, and the plug pressure regulating spring is in a compressed state, so that the lubricating oil in the oil channel cavity flows into the oil drain pipe oil drain channel and the oil pan oil drain channel, increasing the amount of lubricating oil leakage, and ensuring that all parts of the engine are adequately lubricated. When the engine load decreases and the speed decreases, the plug head will automatically close to reduce the amount of lubricating oil leakage, thereby avoiding the phenomenon of low lubricating oil pressure at low load and low speed. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of the local cross-sectional structure of the original blockage mentioned in the background technology;
[0018] Figure 2 It is a schematic diagram of the external structure of the original blockage mentioned in the background technology;
[0019] Figure 3 It is a schematic cross-sectional structure diagram of the original blockage mentioned in the background technology;
[0020] Figure 4 It is a partial cross-sectional schematic diagram of the novel plug with auxiliary pressure regulation improved in the present application;
[0021] Figure 5 for Figure 4A local enlarged structural diagram of the part;
[0022] Figure 6 This is a schematic diagram of the external structure of the new plug with auxiliary pressure regulation after improvement in this application;
[0023] Figure 7 for Figure 6 A schematic diagram of the local enlarged structure at B in FIG.
[0024] Figure 8 The present invention is a schematic structural diagram showing the positional relationship between the plugging head and the plugging pressure regulating spring in a new plugging device with auxiliary pressure regulation.
[0025] In the figure: 1-oil channel housing; 11-oil channel cavity; 2-oil sump; 3-blocking mechanism; 31-blocking head; 311-external plug; 312-piston; 3121-piston oil drain channel; 32-oil drain pipe; 321-oil drain pipe oil drain channel; 33-blocking pressure regulating spring; 34-guide; 4-main oil channel blockage; 5-blocking pressure plate; 6-pressure plate bolt. DETAILED DESCRIPTION
[0026] The technical solution in the embodiment of the present application is to solve the problem that the original oil channel cavity blocking structure cannot always ensure the operation under stable lubricating oil pressure when the engine is in different working conditions. The overall idea is as follows:
[0027] Embodiment 1:
[0028] like Figure 4-Figure 8 As shown, a new plug with auxiliary pressure regulation includes an oil channel housing 1 and an oil pan 2, the oil channel housing 1 and the oil pan 2 are respectively provided with an oil channel cavity 11 and an oil pan oil drain channel, and one end of the oil channel cavity 11 is sealed with a plugging mechanism 3;
[0029] The plugging mechanism 3 includes a plugging head 31 which is sealed at one end of the oil channel cavity 11. The outer end of the plugging head 31 is detachably connected to an oil drain pipe 32. The oil drain pipe 32 is provided with an oil drain channel 321 which can be connected to the oil drain channel of the oil pan. A plugging pressure regulating spring 33 is also provided at the connection between the plugging head 31 and the oil drain pipe 32. When the plugging head 31 is pushed by the pressure of the lubricating oil, it moves outward, the plugging pressure regulating spring 33 is compressed, and the oil channel cavity 11 and the oil drain channel 321 of the oil drain pipe are connected.
[0030] When the engine load increases and the speed increases, the lubricating oil pressure is too high, and the plugging head 31 in the new plugging will be automatically squeezed forward, and the plugging pressure regulating spring 33 is in a compressed state, so that the lubricating oil in the oil channel cavity 21 flows into the oil drain pipe oil drain channel 321 and the oil pan oil drain channel, increasing the amount of lubricating oil leakage to ensure that all engine parts are sufficiently lubricated. When the engine load decreases and the speed decreases, the plugging head 31 will automatically close to reduce the amount of lubricating oil leakage, thereby avoiding the phenomenon of low lubricating oil pressure at low load and low speed.
[0031] The plugging head 31 includes an outer plug 311 disposed at one end of the oil channel cavity 11, a piston 312 is disposed inside the outer plug 311, a piston oil drain channel 3121 connected to the oil drain pipe oil drain channel 321 is opened on the piston 312, and the outer end of the piston 312 is in contact with the plugging pressure regulating spring 33. Specifically, when the engine load increases and the speed increases, the lubricating oil pressure is too high, the piston 312 is automatically squeezed and moves forward, and the plugging pressure regulating spring 33 is in a compressed state, so that the lubricating oil in the oil channel cavity 21 flows into the piston oil drain channel 312, and then flows into the oil drain pipe oil drain channel 321 and the oil pan oil drain channel in turn, increasing the amount of lubricating oil leakage, and ensuring that each component of the engine is sufficiently lubricated. When the engine load decreases and the speed decreases, the piston 312 will automatically close to reduce the amount of lubricating oil leakage, thereby avoiding the phenomenon of low lubricating oil pressure at low load and low speed.
[0032] The inner end of the inner cavity of the outer plug 311 is also radially opened with an annular expansion groove. When the lubricating oil pressure is too high, the piston 312 is squeezed to move forward, and the oil enters the piston oil drain channel 3121 through the annular expansion groove. Figure 8 , it can be seen that the shape structure of the annular expansion groove and the piston oil drain passage 3121, from which it can be known that when the piston 312 is forced to move forward, the oil in the oil passage chamber 11 will flow into the annular expansion groove as the piston 312 moves forward, and then flow into the piston oil drain passage 3121 from the outside of the piston 312; Figure 5 It can be seen that the oil in the piston oil drain channel 3121 will flow into the oil drain pipe oil drain channel 321 and the oil pan oil drain channel in sequence, increasing the leakage of lubricating oil and ensuring that all engine components are sufficiently lubricated.
[0033] The inner end of the inner cavity of the outer plug 311 is provided with an annular inclined surface A that opens outward, and the inner end of the piston 312 is provided with an annular inclined surface B that matches the annular inclined surface A. Figure 5 and Figure 8 It can be seen that the contact surface between the outer plug 311 and the inner side of the piston 312 is an inclined surface, which serves to limit the position of the piston 312, thereby avoiding the probability of the piston 312 displacing in the opposite direction toward the inner side of the oil channel cavity 11, that is, avoiding the probability of the piston oil drain channel 3121 being directly connected to the oil channel cavity 11 when there is no thrust.
[0034] The blocking mechanism 3 also includes a fixing member 34;
[0035] The fixing member 34 is specifically a long screw fixed to the outside of the end of the oil drain pipe 32, and a screw hole adapted to the long screw is also provided on the outer side wall of the outer end of the outer plug 311. Specifically, the oil drain pipe 32 and the outer plug 311 can be directly fixed by the long screw, that is, the position where the outer plug 311 and the oil channel housing 1 are fixed can be directly locked so that they can no longer move, and only the piston 312 can move.
[0036] This application introduces the working principle by comparing the original blocking structure and the improved structure in detail:
[0037] Previous oil channel blocking structures, such as Figure 1-Figure 3 It is shown that a main oil passage plug 4 is designed at one end of the oil passage cavity of the oil passage housing 1, and two pressure plate bolts 6 are used to fix the plugging pressure plate 5 at the main oil passage plug 4 and the outer shell of the oil passage housing 1, so as to complete the plugging of the oil passage cavity end of the oil passage housing 1. The original structure has a single plugging function, which only prevents the lubricating oil from leaking out, and has no other expansion functions. Under different working conditions, the engine cannot always ensure that it works under a stable lubricating oil pressure.
[0038] The improved plugging structure of the present application requires that when the engine is running, the lubricating oil needs to flow along the lubrication system at a certain pressure to achieve the purpose of lubricating each component. The new plugging can adjust the oil capacity in the oil chamber, keep the oil pressure within the normal range, and ensure that each component of the engine is fully lubricated. For example, when the engine load increases and the speed increases, the lubricating oil pressure is too high, and the piston 312 in the new plugging will automatically be squeezed and move forward, and the plugging pressure regulating spring 33 is in a compressed state, so that the lubricating oil in the oil channel cavity 21 enters the piston oil drain channel 312 along the annular expansion groove, and then enters the oil drain pipe oil drain channel 321 and the oil pan oil drain channel in turn, increasing the amount of lubricating oil leakage, and ensuring that each component of the engine is sufficiently lubricated. When the engine load decreases and the speed decreases, the piston 312 will automatically close to reduce the amount of lubricating oil leakage, thereby avoiding the phenomenon of low lubricating oil pressure at low load and low speed.
[0039] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present application, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present application.
Claims
1. A new plug with auxiliary pressure regulation, comprising an oil channel housing (1) and an oil pan (2), wherein the oil channel housing (1) and the oil pan (2) are respectively provided with an oil channel cavity (11) and an oil pan oil drain channel, characterized in that: One end of the oil channel cavity (11) is sealed with a blocking mechanism (3); The blocking mechanism (3) comprises a blocking head (31) for blocking one end of the oil channel cavity (11); the outer end of the blocking head (31) is detachably connected to an oil drain pipe (32); the oil drain pipe (32) is provided with an oil drain channel (321) which can be communicated with the oil drain channel of the oil pan; a blocking pressure regulating spring (33) is also provided at the connection point between the blocking head (31) and the oil drain pipe (32); when the blocking head (31) is pushed by the lubricating oil pressure and moves outward, the blocking pressure regulating spring (33) is compressed, and the oil channel cavity (11) and the oil drain channel (321) of the oil drain pipe are connected.
2. The novel plug with auxiliary pressure regulation as claimed in claim 1 is characterized in that: The plugging head (31) comprises an external plug (311) arranged at one end of the oil channel cavity (11), a piston (312) is arranged inside the external plug (311), a piston oil leakage channel (3121) connected to the oil leakage channel (321) of the oil leakage pipe is opened on the piston (312), and the outer end of the piston (312) is in contact with the plugging pressure regulating spring (33).
3. The novel plug with auxiliary pressure regulation as claimed in claim 2 is characterized in that: The inner end of the inner cavity of the outer plug (311) is also provided with an annular expansion groove radially outward, and when the lubricating oil pressure is too high, the piston (312) is squeezed to move forward, and the oil enters the piston oil drain channel (3121) through the annular expansion groove.
4. The novel plug with auxiliary pressure regulation as claimed in claim 2 is characterized in that: The inner end of the inner cavity of the outer plug (311) is provided with an annular inclined surface A that opens outwards, and the inner end of the piston (312) is provided with an annular inclined surface B that matches the annular inclined surface A.
5. The novel plug with auxiliary pressure regulation as claimed in claim 2 is characterized in that: The blocking mechanism (3) further comprises a fixing member (34); The fixing member (34) is specifically a long screw fixed to the outside of the end of the oil drain pipe (32), and a screw hole matching the long screw is also provided on the outer end side wall of the outer plug (311).