CN213954492U

CN213954492U - Novel internal structure of engine oil control valve

Info

Publication number: CN213954492U
Application number: CN202022218170.0U
Authority: CN
Inventors: 万进全; 张建顺; 邓碧利; 周斌
Original assignee: Zhejiang Aoteng Intelligent Technology Co ltd
Current assignee: Zhejiang Aoteng Intelligent Technology Co ltd
Priority date: 2020-09-30
Filing date: 2020-09-30
Publication date: 2021-08-13
Anticipated expiration: 2030-09-30

Abstract

The invention discloses an internal structure of a novel engine oil control valve, which comprises a filter screen component, a valve sleeve and a shell, wherein a front yoke is arranged in the shell, a coil component is sleeved outside the lower end of the front yoke, an armature is movably arranged on the shell, a mandril is fixedly connected to the armature, a jack is arranged in the front yoke, a channel is arranged in the valve sleeve and communicated with the channel, the channel is sequentially arranged into an upper channel, a middle channel and a lower channel from top to bottom, a steel ball is arranged in the upper channel, the filter screen component comprises an upper spring, the spring props against the steel ball towards the direction of the middle channel, the mandril props against the steel ball, a T port, an A port and a bypass small hole are arranged on the valve sleeve, a one-way valve core is arranged at the upper end of the lower channel, and a limit table is arranged on the mandril. The novel internal structure of the engine oil control valve has the advantages that the filter screen assembly is convenient to install, and the oil pressure can be stabilized near a set value. The device has the advantages of convenience in assembly, good stability, high control precision and long service life.

Description

Novel internal structure of engine oil control valve

Technical Field

The utility model belongs to the technical field of the machine oil control valve, concretely relates to novel inner structure of machine oil control valve.

Background

The engine oil control valve is used for pilot control of a hydraulic oil path of engine compression braking, so that the valve timing of an exhaust valve of an engine is changed. Near the end of the compression stroke, the exhaust valve is opened, releasing the work of the engine compressing air to the exhaust system, and energy is not returned to the piston. The impulse of the vehicle is transmitted to the engine through the wheels and the transmission system and becomes the power for reversely dragging the engine to run, thereby playing the role of braking the vehicle.

The existing organic oil control valve has the problems of high processing requirement of internal structural parts, complex assembly and poor performance stability.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model discloses a technical scheme is: the novel internal structure of the engine oil control valve comprises a filter screen component, a valve sleeve and a shell which are sequentially connected from top to bottom, wherein a front yoke is installed in the shell, the upper end of the front yoke is fixedly connected with the lower end of the valve sleeve, a coil component is sleeved on the outer side of the lower end of the front yoke and is positioned in the shell, an armature is movably installed in the shell, a push rod is fixedly connected onto the armature, jacks communicated with the two ends of the front yoke are arranged in the front yoke, a channel communicated with the two ends of the valve sleeve is arranged in the valve sleeve and is communicated with the channels, the channels are sequentially arranged into an upper channel, a middle channel and a lower channel from top to bottom, the inner diameter of the middle channel is respectively smaller than that of the upper channel and that of the lower channel, a steel ball capable of blocking the middle channel is installed in the upper channel, a P port is formed at the upper end of the valve sleeve at the upper end of the upper channel, the filter screen component covers the P port, the filter screen component comprises an upper spring extending into the upper channel, the spring withstands the steel ball towards well passageway direction, the ejector pin is mobilizable in proper order and withstands the steel ball after passing jack, lower passageway, well passageway, be equipped with the T mouth of intercommunication lower extreme of passageway, the A mouth of intercommunication well passageway, the bypass aperture of intercommunication upper channel on the valve barrel, the upper end of lower passageway is equipped with the check valve core, and check valve core movable mounting is on the ejector pin, and the lower extreme of passageway in can being plugged up to the upper end of check valve core, and the part that lies in the lower passageway on the ejector pin is equipped with the spacing platform that is used for restricting check valve core position.

Preferably, the lower channel is internally provided with a lower spring which is sleeved on the ejector rod, and two ends of the lower spring sleeve respectively support the check valve core and the front yoke.

Preferably, as above-mentioned technical scheme, the filter screen subassembly is including the apron, and the apron is bent downwards all around and is formed the lid edge, is equipped with the installing port that communicates apron upper surface and lower surface on the apron, installs the filter screen in the installing port, and the lid edge is along with the upper end lock joint or the threaded connection of valve barrel.

Preferably, a cross reinforcing rib is arranged below the filter screen, the periphery of the cross reinforcing rib is fixedly connected with the cover edge, an installation column is arranged in the middle of the cross reinforcing rib, and the upper end of the upper spring is tightly sleeved on the installation column.

Preferably, the upper end of the middle channel is provided with a conical surface, and the conical surface is matched with the steel ball.

Preferably, in the above technical solution, the upper end of the check valve spool is provided with a lower tapered surface, and the lower end of the middle passage is provided with an upper tapered surface matched with the lower tapered surface.

Preferably, the upper end of the middle channel is provided with a plurality of lower guide ribs arranged at equal intervals, the lower guide ribs surround the valve core of the one-way valve, and the lower guide ribs are fixedly connected with the inner wall of the middle channel.

Preferably, the periphery of the upper channel is provided with a plurality of upper guide ribs which are uniformly arranged at intervals, the upper guide ribs surround the steel balls, and the upper guide ribs are fixedly connected with the inner wall of the upper channel.

The utility model has the advantages that: the utility model discloses an inner structure of novel engine oil control valve will go up the spring, the filter screen is in the same place integratively, forms the filter screen subassembly, and filter screen unit simple to operate can set up down the spring as required in the lower passageway to the elasticity size of spring gives the different pressure initial value of engine oil control valve under the design as required, makes the control mouth be full of fluid in to actuating mechanism's the oil circuit, has guaranteed the response speed of solenoid valve when circular telegram. The device has the advantages of convenience in assembly, good stability, high control precision and long service life.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1, an internal structure of a novel engine oil control valve comprises a filter screen assembly 1, a valve sleeve 2 and a housing 3 which are sequentially connected from top to bottom, wherein a front yoke 4 is installed in the housing 3, the upper end of the front yoke 4 is fixedly connected with the lower end of the valve sleeve 2, a coil assembly 5 is sleeved outside the lower end of the front yoke 4, the coil assembly 5 is positioned in the housing 3, an armature 6 is movably installed on the housing 3, a push rod 7 is fixedly connected to the armature 6, jacks 8 communicated with the two ends of the front yoke 4 are arranged in the front yoke 4, channels communicated with the two ends of the valve sleeve 2 are arranged in the valve sleeve 2, the channels are sequentially arranged as an upper channel 9, a middle channel 10 and a lower channel 11 from top to bottom, the jacks 8 are communicated with the lower channel 11, the inner diameter of the middle channel 10 is respectively smaller than the inner diameter of the upper channel 9 and the inner diameter of the lower channel 11, a steel ball 12 capable of blocking the middle channel 10 is installed in the upper channel 9, the upper end of the upper channel 9 forms a P port 13 at the upper end of the valve housing 2, the valve housing 2 is provided with a bypass small hole 18 communicated with the upper channel 9, the filter screen assembly 1 covers the P port 13, the filter screen assembly 1 comprises an upper spring 14 extending into the upper channel 9, the spring 14 props against the steel ball 12 towards the direction of the middle channel 10, the ejector rod 7 can movably penetrate through the jack 8, the lower channel 11 and the middle channel 10 in sequence and then prop against the steel ball 12, the valve housing 2 is provided with a T port (not shown in the section angle problem drawing) communicated with the lower end of the lower channel 11 and an A port 15 communicated with the middle channel 10, the upper end of the lower channel 11 is provided with a one-way valve core 16, the one-way valve core 16 is movably arranged on the ejector rod 7, the upper end of the one-way valve core 16 can block the lower end of the middle channel 10, and the part of the ejector rod 7 positioned in the lower channel 11 is provided with a limit table 17 for limiting the position of the one-way valve core 16. After the engine oil control valve is installed, when the coil assembly 5 is powered off, the upper spring 14 pushes the steel ball 12 to the middle channel 10 so as to block the upper end of the middle channel 10, the oil way of the port P-A is disconnected, oil of the port P flows out through the bypass small hole 18, the bypass small hole 18 is communicated with the port A in equipment, the oil way of the port A-T is in an open state at the moment, the oil is discharged from the port T, and the port A has smaller oil pressure. When the coil component 5 is electrified, the front yoke iron 4 generates magnetism and adsorbs the armature iron 6, the ejector rod 7 is driven to move towards the direction of the steel ball 12 and overcomes the elasticity of the upper spring 14 to jack up the steel ball 12, the limiting table 17 drives the check valve spool 16 to move upwards to block the lower end of the middle channel 10, the oil path of the port A-T is in a closed state, the oil path of the port P-A is in an open state, and oil inputs pressure to the port A.

Furthermore, a lower spring 19 is arranged in the lower channel 11, the lower spring 19 is sleeved on the mandril 7, and two ends of the lower spring 19 respectively support the check valve core 16 and the front yoke 4. The lower spring 19 gives the check valve core 16 an elastic force always towards the direction of the middle channel 10, when the coil assembly 5 is powered off, the oil flowing to the port A from the port P increases the oil pressure in the middle channel 10, when the pressure overcomes the elastic force of the lower spring 19, the check valve core 16 descends, the oil path from the port A to the port T is opened, and the oil is discharged from the port T. When the hydraulic pressure at port a is reduced to a certain value, the spring 19 becomes larger than the hydraulic pressure at port a, and the check valve spool 16 is closed while rising. Thus, the oil in the port A can be maintained near a certain pressure.

Further, filter screen subassembly 1 is including the apron, and the apron is bent downwards all around and is formed the lid edge, is equipped with the installing port that communicates apron upper surface and lower surface on the apron, installs the filter screen in the installing port, and the lid edge is along the upper end lock joint with valve barrel 2.

Furthermore, a cross reinforcing rib is arranged below the filter screen, the periphery of the cross reinforcing rib is fixedly connected with the cover edge, an installation column is arranged in the middle of the cross reinforcing rib, and the upper end of the upper spring 14 is tightly sleeved on the installation column.

Furthermore, the upper end of the middle channel 10 is provided with a conical surface, and the conical surface is matched with the steel ball 12.

Further, the upper end of the check valve core 16 is provided with a lower tapered surface 26, and the lower end of the middle passage 10 is provided with an upper tapered surface 27 which is matched with the lower tapered surface 26. The cooperation of the lower tapered surface 26 with the upper tapered surface 27 facilitates accurate positioning of the check valve spool 16 and blocks the lower end of the middle passageway 10.

Furthermore, a plurality of lower guide ribs 28 which are uniformly arranged at intervals are arranged around the upper end of the middle channel 10, the lower guide ribs 28 surround the check valve core 16, and the lower guide ribs 28 are fixedly connected with the inner wall of the middle channel 10. Because the check valve core 16 is movably sleeved on the ejector rod 7, the check valve core 16 is easy to be stuck in the moving process to cause oil leakage, and the lower guide rib 28 ensures that the upper conical surface 27 of the check valve core 16 can be accurately inserted into and attached to the lower conical surface 26 in the moving process, thereby ensuring the sealing effect.

Furthermore, a plurality of upper guide ribs 31 which are uniformly arranged at intervals are arranged on the periphery of the upper channel 9, the upper guide ribs 31 surround the steel balls 12, and the upper guide ribs 31 are fixedly connected with the inner wall of the upper channel 9.

It should be mentioned that the technical features such as the coil assembly 5 related to the present invention should be regarded as the prior art, and the specific structure, the operation principle, the control mode that may be related to, and the spatial arrangement mode of these technical features may be selected by the conventional choice in the field, and should not be regarded as the invention point of the present invention, and the present invention does not further specifically expand the detailed description.

Having described in detail preferred embodiments of the present invention, it is to be understood that modifications and variations can be made by persons skilled in the art without inventive faculty, and therefore all technical solutions which can be obtained by a person skilled in the art based on the concepts of the present invention through logic analysis, reasoning or limited experimentation will fall within the scope of protection defined by the claims.

Claims

1. The internal structure of the novel engine oil control valve is characterized by comprising a filter screen assembly, a valve sleeve and a shell which are sequentially connected from top to bottom, wherein a front yoke is arranged in the shell, the upper end of the front yoke is fixedly connected with the lower end of the valve sleeve, a coil assembly is sleeved outside the lower end of the front yoke, the coil assembly is positioned in the shell, an armature is movably arranged in the shell, a push rod is fixedly connected onto the armature, jacks communicated with the two ends of the front yoke are arranged in the front yoke, a channel communicated with the two ends of the valve sleeve is arranged in the valve sleeve and communicated with the jacks, the channel is sequentially provided with an upper channel, a middle channel and a lower channel from top to bottom, the inner diameter of the middle channel is respectively smaller than that of the upper channel and that of the lower channel, a steel ball capable of plugging the middle channel is arranged in the upper channel, a P port is formed at the upper end of the valve sleeve, and a small hole communicated with the upper channel is arranged on the valve sleeve, the filter screen subassembly covers P mouth, and the filter screen subassembly withstands the steel ball including stretching into the last spring in the last passageway, spring towards well passageway direction, the ejector pin is mobilizable in proper order and withstands the steel ball after passing jack, lower passageway, well passageway, be equipped with the T mouth of intercommunication lower extreme, the A mouth of intercommunication well passageway, the bypass aperture of intercommunication upper channel on the valve barrel, the upper end of lower passageway is equipped with the check valve case, check valve case movable mounting is on the ejector pin, and the lower extreme of well passageway can be plugged up to the upper end of check valve case, and the part that lies in the lower passageway on the ejector pin is equipped with the spacing platform that is used for restricting check valve case position.

2. The internal structure of a novel engine oil control valve as defined in claim 1, wherein a lower spring is disposed in said lower channel, said lower spring is sleeved on said top rod, and two ends of said lower spring sleeve respectively support said check valve core and said front yoke.

3. The internal structure of a novel engine oil control valve as defined in claim 1, wherein said screen assembly comprises a cover plate, the periphery of said cover plate is bent downward to form a cover rim, said cover plate is provided with a mounting opening communicating the upper surface and the lower surface of said cover plate, a screen is mounted in said mounting opening, and said cover rim is fastened or screwed with the upper end of said valve housing.

4. The internal structure of the novel engine oil control valve as claimed in claim 3, wherein a cross-shaped reinforcing rib is arranged below the filter screen, the periphery of the cross-shaped reinforcing rib is fixedly connected with the cover edge, a mounting column is arranged in the middle of the cross-shaped reinforcing rib, and the upper end of the upper spring is tightly sleeved on the mounting column.

5. The internal structure of a novel engine oil control valve as defined in claim 1, wherein the upper end of said central passage is provided with a conical surface which is matched with the steel ball.

6. The internal structure of a novel engine oil control valve as defined in claim 1, wherein the upper end of said check valve spool is provided with a lower tapered surface, and the lower end of said middle passage is provided with an upper tapered surface cooperating with said lower tapered surface.

7. The internal structure of a novel engine oil control valve as defined in claim 6, wherein the upper end of the middle channel is surrounded by a plurality of lower guide ribs which are uniformly spaced and surround the valve core of the one-way valve, and the lower guide ribs are fixedly connected with the inner wall of the middle channel.

8. The internal structure of a novel engine oil control valve as defined in claim 1, wherein a plurality of upper guide ribs are provided around the upper passage at regular intervals, the upper guide ribs surround the steel balls, and the upper guide ribs are fixedly connected to the inner wall of the upper passage.