CN216429718U - Pressure regulator for feeding lubricating oil into diesel engine with lubricating oil pump - Google Patents
Pressure regulator for feeding lubricating oil into diesel engine with lubricating oil pump Download PDFInfo
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- CN216429718U CN216429718U CN202121531857.8U CN202121531857U CN216429718U CN 216429718 U CN216429718 U CN 216429718U CN 202121531857 U CN202121531857 U CN 202121531857U CN 216429718 U CN216429718 U CN 216429718U
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Abstract
The pressure regulating device comprises a regulating valve shell, a sliding valve which is arranged in an inner hole of the regulating valve shell in a sealing mode through a movable sealing ring, a spring which is arranged in the inner hole of the sliding valve and a pressure maintaining part which is composed of a spring seat which is in clearance fit with the left end hole of the sliding valve and connected with the end part of the spring, wherein the left end part of the regulating valve shell is fixedly provided with a pressure regulating part which is connected with the spring seat, and the pressure regulating part is used for regulating the pressure of the lubricating oil entering from the right end hole of the regulating valve shell after the pressing force of the spring seat acting on the spring is regulated through the pressure regulating part. The utility model solves the problems that the existing structure has high requirement on the manufacturing precision of oil supply characteristics of an oil inlet and return pipeline and a lubricating oil pump, the pressure debugging process of the lubricating oil inlet machine is complicated, low in efficiency and incapable of dynamic regulation, improves the debugging working efficiency of the diesel engine, and has the advantages of simple structure and convenient operation. Has better popularization value in the field of diesel engines.
Description
Technical Field
The utility model belongs to the technical field of diesel engine tests, and particularly relates to a pressure adjusting device for feeding lubricating oil into a diesel engine with a lubricating oil pump.
Background
The diesel engine is provided with a lubricating oil pump, the lubricating oil pump is driven by a crankshaft of the diesel engine through a timing gear, and in the operation process, the outlet pressure and the flow of the lubricating oil pump can be changed along with the change of the rotating speed of the crankshaft. The diesel engine has certain requirements on the pressure of lubricating oil in the working process: the pressure is too low, and the kinematic pair is easy to wear; the problems of high pressure, increased oil pumping phenomenon of the diesel engine, increased lubricating oil consumption, easy generation of carbon deposition, cylinder pulling and the like are solved. Therefore, a lubricating oil pressure regulating device is generally installed in the oil inlet pipe after the lubricating oil pump. As shown in fig. 1, when the diesel engine has a low rotation speed, the flow characteristic of the engine belt pump meets the requirement, and the pressure regulating valve is in a closed state under the action of the spring; when the rotating speed of the diesel engine gradually rises and the pressure of lubricating oil from a belt pump exceeds 6bar, the lubricating oil pressure regulating valve is opened, part of the lubricating oil returns to the oil pan of the diesel engine through an oil return pipeline, and the pressure of the lubricating oil entering the diesel engine is stabilized at 6-6.5 bar.
In the prior art, the opening pressure set value of the lubricating oil pressure regulating valve needs to be determined according to simulation calculation such as the drift diameters of a lubricating oil inlet pipeline and an oil return pipeline of the pressure regulating valve of a diesel engine. However, in practical use, due to the pump flow characteristic of the diesel engine and the difference of the lubricating oil inlet and return pipelines, when the diesel engine works, the lubricating oil pressure is often out of a specified range, at the moment, the diesel engine needs to be stopped, and the gland of the adjusting device is detached and the thickness of the gasket is adjusted by using a dismounting tool. This work requires a certain debugging experience, and in addition, because dynamic adjustment cannot be realized, the workload and time for debugging the diesel engine are increased, so that improvement is necessary to solve the above problems in the prior art.
SUMMERY OF THE UTILITY MODEL
The technical problems solved by the utility model are as follows: the utility model provides a machine takes lubricating oil pump diesel engine lubricating oil to advance quick-witted pressure regulating device, through fixed at governing valve casing left end portion and spring seat connection and be used for adjusting the pressure adjustment part that the lubricating oil advances quick-witted pressure, it is loaded down with trivial details to advance back oil pipe way to have solved current structure, lubricating oil pump fuel feeding characteristic manufacturing accuracy requires highly, the lubricating oil advances quick-witted pressure debugging process, low efficiency, unable dynamic regulation's problem, promote diesel engine debugging work efficiency, effectively solve traditional regulator inefficiency, a series of problems such as the security quality hidden danger is big, oil feed pressure adjustment efficiency improves more than 90%, adjusting device, moreover, the steam generator is simple in structure, and convenient operation. Has better popularization value in the field of diesel engines.
The technical scheme adopted by the utility model is as follows: the pressure regulating device comprises a pressure maintaining component, wherein the pressure maintaining component consists of a regulating valve shell, a sliding valve, a spring and a spring seat, the sliding valve is hermetically arranged in an inner hole of the regulating valve shell through a movable sealing ring, the spring is arranged in the inner hole of the sliding valve, the spring seat is in clearance fit in the left end hole of the sliding valve and is connected with the end part of the spring, an oil return hole communicated with the inner hole of the regulating valve shell is formed in the side wall of the regulating valve shell, and the sliding valve is matched with the right end of the inner hole of the regulating valve shell through the spring to disconnect and close the inner hole of the regulating valve shell and the oil return hole; and the left end part of the regulating valve shell is fixedly provided with a pressure regulating component connected with the spring seat, and the pressure regulating component regulates pressing force acted on the spring by the spring seat to realize regulation of the pressure of the lubricating oil entering from the orifice at the right end of the regulating valve shell.
The pressure adjusting part comprises a flange and a square head adjusting screw, the axial cross section of the flange is of a U-shaped circular structure, the opening of the flange faces the adjusting valve shell and is fixed at the left end part of the adjusting valve shell, a threaded hole and the square head adjusting screw are formed in the left end face of the flange and are in adaptive connection with the threaded hole, the right end of the square head adjusting screw extends into the positioning groove in the left end face of the spring seat, the left end of the square head adjusting screw and the square head extend out of the flange to adjust the spring seat to move to the right or move to the left through rotating the square head adjusting screw, and then the pressing force of the spring is adjusted.
Furthermore, a ball nut in threaded connection with the square-head adjusting screw is arranged on the left side of the flange.
Furthermore, the flange is fixedly connected with a locking nut matched with the screw rod into a whole through a plurality of screw rods arranged on the left end face of the adjusting valve shell.
Compared with the prior art, the utility model has the advantages that:
1. according to the technical scheme, the pressure adjusting part which is connected with the spring seat and used for adjusting the pressure of the lubricating oil entering the machine is fixed at the left end part of the adjusting valve shell, so that the problems that the existing structure has high requirements on the manufacturing precision of oil supply characteristics of an oil inlet and return pipeline and a lubricating oil pump, the debugging process of the pressure of the lubricating oil entering the machine is complicated, low in efficiency and incapable of dynamically adjusting are solved, and the debugging working efficiency of a diesel engine is improved;
2. according to the technical scheme, the pressure adjusting part consisting of the flange and the square-head adjusting screw in threaded connection with the flange is adopted, and the lubricating oil feeding pressure can be adjusted after the spring seat is moved leftwards or rightwards by rotating the square-head adjusting screw forwards and backwards, so that the lubricating oil feeding pressure adjusting part is reasonable in structural design, safe, reliable and easy to operate;
3. according to the technical scheme, the dynamic sealing ring is arranged between the inner hole of the adjusting valve shell and the outer wall of the sliding valve, so that the sealing performance of the lubricating oil inlet side is ensured, the adjusting device keeps good sealing during the operation of the diesel engine, and the physical isolation of an adjusting part and an oil cavity is realized;
4. this technical scheme effectively solves a series of problems such as traditional pressure regulating device inefficiency, security quality hidden danger are big, and oil feed pressure adjustment efficiency improves more than 90%, adjusting device, simple structure, convenient operation. Has better popularization value in the field of diesel engines.
Drawings
FIG. 1 is a schematic view of the structure of the present invention.
Detailed Description
In the following, an embodiment of the present invention is described with reference to fig. 1, so as to clearly and completely describe the technical solution, it is obvious that the described embodiment is only a part of the embodiment of the present invention, and not a whole embodiment.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
The pressure regulating device for feeding lubricating oil into the diesel engine with the lubricating oil pump comprises a pressure maintaining component, wherein the pressure maintaining component consists of a regulating valve shell 1, a sliding valve 2 which is hermetically arranged in an inner hole of the regulating valve shell 1 through a movable sealing ring 3, a spring 4 which is arranged in the inner hole of the sliding valve 2 and a spring seat 5 which is in clearance fit with the inner hole of the left end of the sliding valve 2 and is connected with the end part of the spring 4, an oil return hole 9 communicated with the inner hole of the regulating valve shell 1 is formed in the side wall of the regulating valve shell 1, and the inner hole of the regulating valve shell 1 is disconnected and closed with the oil return hole 9 after the sliding valve 2 is matched with the right end of the inner hole of the regulating valve shell 1 through the spring 4; the left end part of the regulating valve shell 1 is fixedly provided with a pressure regulating component connected with a spring seat 5, and the pressure regulating component regulates pressing force acted on a spring 4 by the spring seat 5 to realize regulation of pressure of lubricating oil entering from a right end orifice of the regulating valve shell 1; in the structure, the pressure adjusting part which is connected with the spring seat 5 and is used for adjusting the pressure of the lubricating oil entering machine is fixed at the left end part of the adjusting valve shell 1, so that the problems that the existing structure has high requirements on the manufacturing precision of oil feeding characteristics of an oil feeding and returning pipeline and a lubricating oil pump, and the debugging process of the pressure of the lubricating oil entering machine is complicated, low in efficiency and incapable of dynamically adjusting are solved, and the debugging working efficiency of a diesel engine is improved; the dynamic sealing ring 3 is arranged between the inner hole of the regulating valve shell 1 and the outer wall of the slide valve 2, so that the sealing performance of the lubricating oil inlet side is ensured, the regulating device keeps good sealing during the operation of the diesel engine, and the physical isolation of a regulating part from an oil cavity is realized;
the specific composition and connection structure of the pressure regulating component are as follows: the pressure adjusting component comprises a flange 6 and a square head adjusting screw 7, the axial section of the flange 6 is of a U-shaped circular structure, the opening of the flange 6 faces the adjusting valve shell 1 and is fixed at the left end part of the adjusting valve shell 1, a threaded hole is formed in the left end surface of the flange 6, the square head adjusting screw 7 is in adaptive connection with the threaded hole, the right end of the square head adjusting screw 7 extends into a positioning groove in the left end surface of the spring seat 5, the left end of the square head adjusting screw 7 and the square head extend out of the flange 6, and the pressing force of the spring 4 is adjusted by rotating the square head adjusting screw 7 to adjust the right movement or the left movement of the spring seat 5; specifically, a ball nut 8 in threaded connection with a square-head adjusting screw 7 is arranged on the left side of the flange 6; specifically, the flange 6 is fixedly connected with a locking nut matched with a plurality of screws through the screws arranged on the left end surface of the regulating valve shell 1 into a whole; in the structure, the pressure adjusting part consisting of the flange 6 and the square-head adjusting screw 7 in threaded connection with the flange 6 is adopted, and the lubricating oil feeding pressure can be adjusted after the spring seat 5 is moved leftwards or rightwards by rotating the square-head adjusting screw 7 forwards and backwards, so that the structure is reasonable in design, safe, reliable and easy to operate;
in the technical scheme, when the oil inlet pressure of the diesel engine is not in the specified range of the lubricating oil pressure, the ball nut 8 is screwed off, the square-head adjusting screw 7 is screwed in or out, the length of the spring 4 is adjusted, and the dynamic adjustment of the lubricating oil inlet pressure is realized; the square-head adjusting screw 7 can tightly press the spring 4 through the spring seat 5 under the condition of not being disassembled, so that potential safety hazards caused by sudden release of the elastic force of the tool spring 4 when the spring 4 is disassembled are avoided, meanwhile, the lubricating oil pressure can be quickly adjusted, the sealing performance of the lubricating oil inlet side is ensured through the movable sealing ring 3, the pressure adjusting part keeps good sealing during the operation of the diesel engine, and no lubricating oil leakage during the pressure adjusting period is ensured; the compression length of the spring 4 is adjusted by utilizing the square-head adjusting screw 7, the square-head adjusting screw 7 is in threaded connection with the flange 6, the pressure of the spring 4 is borne by threads in the adjusting process, and meanwhile, the length of the spring 4 is adjusted by the square-head adjusting screw 7, so that the operation is convenient, and the system pressure can be quickly adjusted; effectively solve a series of problems such as traditional pressure regulating device inefficiency, security quality hidden danger are big, the oil feed pressure adjustment efficiency improves more than 90%, adjusting device, simple structure, convenient operation. Has better popularization value in the field of diesel engines.
The above-mentioned embodiments are merely preferred embodiments of the present invention, which are not intended to limit the scope of the present invention, and therefore, all equivalent changes made by the contents of the claims of the present invention should be included in the claims of the present invention.
Claims (3)
1. The machine takes the lubricating oil pump diesel engine lubricating oil to enter the pressure regulating device, its characterized in that: the pressure maintaining component comprises an adjusting valve shell (1), a sliding valve (2) which is hermetically arranged in an inner hole of the adjusting valve shell (1) through a movable sealing ring (3), a spring (4) which is arranged in the inner hole of the sliding valve (2) and a spring seat (5) which is in clearance fit with the inner hole of the left end of the sliding valve (2) and is connected with the end part of the spring (4), wherein an oil return hole (9) communicated with the inner hole of the adjusting valve shell (1) is formed in the side wall of the adjusting valve shell (1), and the inner hole of the adjusting valve shell (1) is disconnected and closed with the oil return hole (9) after the sliding valve (2) is matched with the right end of the inner hole of the adjusting valve shell (1) through the spring (4); a pressure adjusting part connected with the spring seat (5) is fixed at the left end part of the adjusting valve shell (1), and the pressure of the lubricating oil entering from the orifice at the right end of the adjusting valve shell (1) is adjusted after the pressing force of the spring seat (5) acting on the spring (4) is adjusted by the pressure adjusting part;
the pressure adjusting part comprises a flange (6) and a square head adjusting screw (7), the axial section of the flange (6) is of a U-shaped circular structure, the opening of the flange (6) faces the adjusting valve shell (1) and is fixed at the left end part of the adjusting valve shell (1), a threaded hole and the square head adjusting screw (7) are formed in the left end face of the flange (6) and are in adaptive connection with the threaded hole, the right end of the square head adjusting screw (7) extends into a positioning groove in the left end face of the spring seat (5), the left end of the square head adjusting screw (7) and the square head extend out of the flange (6) to be arranged, and the pressing force of the spring (4) is adjusted after the square head adjusting screw (7) is rotated to move the spring seat (5) to the right or move to the left.
2. The pressure regulating device for feeding the lubricating oil into the diesel engine with the lubricating oil pump according to claim 1, wherein: and a ball head nut (8) in threaded connection with the square head adjusting screw (7) is arranged on the left side of the flange (6).
3. The pressure regulating device for feeding the lubricating oil into the diesel engine with the lubricating oil pump according to claim 2, characterized in that: the flange (6) is fixedly connected with a locking nut matched with the screw rod into a whole through a plurality of screw rods arranged on the left end face of the adjusting valve shell (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121531857.8U CN216429718U (en) | 2021-07-07 | 2021-07-07 | Pressure regulator for feeding lubricating oil into diesel engine with lubricating oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121531857.8U CN216429718U (en) | 2021-07-07 | 2021-07-07 | Pressure regulator for feeding lubricating oil into diesel engine with lubricating oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216429718U true CN216429718U (en) | 2022-05-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121531857.8U Active CN216429718U (en) | 2021-07-07 | 2021-07-07 | Pressure regulator for feeding lubricating oil into diesel engine with lubricating oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216429718U (en) |
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2021
- 2021-07-07 CN CN202121531857.8U patent/CN216429718U/en active Active
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