CN112406827A - Valve core assembly of automobile air brake ABS electromagnetic valve - Google Patents
Valve core assembly of automobile air brake ABS electromagnetic valve Download PDFInfo
- Publication number
- CN112406827A CN112406827A CN202011174461.2A CN202011174461A CN112406827A CN 112406827 A CN112406827 A CN 112406827A CN 202011174461 A CN202011174461 A CN 202011174461A CN 112406827 A CN112406827 A CN 112406827A
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- Prior art keywords
- valve core
- guide sleeve
- assembly
- valve
- sealing
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/17—Using electrical or electronic regulation means to control braking
- B60T8/176—Brake regulation specially adapted to prevent excessive wheel slip during vehicle deceleration, e.g. ABS
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T15/00—Construction arrangement, or operation of valves incorporated in power brake systems and not covered by groups B60T11/00 or B60T13/00
- B60T15/02—Application and release valves
- B60T15/025—Electrically controlled valves
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Magnetically Actuated Valves (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The invention relates to the technical field of automobile braking, in particular to an automobile air braking ABS electromagnetic valve core assembly, which comprises: coil assembly, guide pin bushing, case, stop iron and spring unit. The first end part of the guide sleeve is fixed in the coil assembly; the stop iron is fixed in the first end part of the guide sleeve; the spring assembly is arranged in the stop iron; the valve core is arranged in the guide sleeve, the first end part of the valve core is matched with the air channel opening on the stop iron, and the second end part of the valve core is matched with the air channel opening of the guide sleeve; the first end of the spool is connected to the spring assembly. According to the valve core assembly of the automobile air brake ABS electromagnetic valve, the second end part of the valve core is matched with the air channel opening of the guide sleeve, namely the sealing position of the air channel opening of the electromagnetic valve is arranged in the guide sleeve assembly, the valve core moves under the guidance of the inner wall of the guide sleeve and is sealed with the air channel opening of the guide sleeve, the sealing and the movement are the same part, and the sealing reliability is greatly improved.
Description
Technical Field
The invention relates to the technical field of automobile braking, in particular to an automobile air braking ABS electromagnetic valve core assembly.
Background
An ABS system is an electronic brake control system that prevents wheels from locking when braking on an emergency brake or a road surface that is prone to slip, and aims to ensure directional stability and drivability of a vehicle. The ABS system regulates the brake pressure of the automobile through the switch of the electromagnetic valve to realize the function. The valve core assembly in the electromagnetic valve is a mechanism for specifically executing on-off action, and is generally in a double-valve core structure.
The valve core assembly structure of the electromagnetic valve commonly adopted by the existing air brake ABS system mainly comprises a valve core rod, a stop iron, a guide sleeve, a coil assembly, a sealing ring, a spring and the like. The stop iron and the guide sleeve are connected and sealed in a rolling mode to form a guide sleeve assembly, and the valve core rod moves up and down and is sealed by means of spring force and magnetic force. The assembly is arranged between the upper body and the lower body of the electromagnetic valve and is communicated with the air passages of the upper body and the lower body, two O-shaped ring radial seals and one valve port seal are respectively arranged on the upper mounting surface and the lower mounting surface, the requirement on mounting and matching precision is high, and the sealing ring is easy to cut during mounting.
Disclosure of Invention
The invention provides a valve core assembly of an electromagnetic valve of an automobile air brake ABS (anti-lock brake system), aiming at the technical problems that the valve core assembly of the electromagnetic valve of the air brake ABS system in the prior art is poor in sealing reliability, high in installation matching precision requirement and easy to break a sealing ring during installation.
The technical scheme for solving the technical problems is as follows:
the utility model provides an automobile air brake ABS solenoid valve case assembly, includes: the coil assembly, the guide sleeve, the valve core, the stop iron and the spring component; the first end part of the guide sleeve is fixed in the coil assembly; the stop iron is fixed in the first end part of the guide sleeve; the spring assembly is arranged in the stop iron; the valve core is arranged in the guide sleeve, a first end part of the valve core is matched with the air channel opening on the stop iron, and a second end part of the valve core is matched with the air channel opening of the guide sleeve; the first end of the spool is connected to the spring assembly.
Further, still include: a first end face seal ring; the first end of the coil assembly and the first end of the stop iron are connected through a first sealing groove which is axially distributed, and a first end face sealing ring used for sealing a gap between the coil assembly and the stop iron is arranged in the first sealing groove.
Further, still include: a second end face sealing ring; and a second end sealing ring used for sealing a gap at the joint of the coil assembly and the valve body is arranged in the second sealing groove.
Further, still include: a first radial seal ring; and a third sealing groove which is distributed radially is formed in the outer side of the second end of the guide sleeve, and a radial sealing ring for sealing a gap at the joint of the guide sleeve and the valve body is arranged in the third sealing groove.
Further, still include: a second radial seal ring; and a fourth sealing groove which is distributed radially is formed in the outer side of the stop iron, and a second radial sealing ring which is used for sealing a gap at the joint of the stop iron and the guide sleeve is arranged in the fourth sealing groove.
Further, the spring assembly includes: a spring seat and a spring; the spring seat is fixed in the stop iron, one end of the spring is installed on the spring seat, and the other end of the spring is connected with the first end of the valve core.
Furthermore, the first end of the stop iron is arranged to be of a stepped structure, the first end of the coil assembly is provided with a stepped hole, and the first end of the stop iron is tightly embedded in the stepped hole.
Furthermore, a circular truncated cone-shaped valve port with a narrow inner part and a wide outer part is formed at the upper end of the stop iron; the first end of the valve core is arranged to be a circular truncated cone-shaped structure matched with the valve port.
Further, still include: a valve core valve; the valve core valve is arranged at the second end part of the valve core, and the valve core valve is matched with the gas channel opening of the guide sleeve.
Further, the stop iron is connected in the guide sleeve in a rolling mode.
Further, the guide sleeve is fixed in the coil assembly through threads and a yoke.
The valve core assembly of the automobile air brake ABS electromagnetic valve provided by the invention at least has the following beneficial effects or advantages:
according to the valve core assembly of the automobile air brake ABS electromagnetic valve, the first end part of the guide sleeve is fixed in the coil assembly; the stop iron is fixed in the first end part of the guide sleeve; the spring assembly is arranged in the stop iron; the valve core is arranged in the guide sleeve, the first end part of the valve core is matched with the air channel opening on the stop iron, and the second end part of the valve core is matched with the air channel opening of the guide sleeve; the first end of the spool is connected to the spring assembly. According to the valve core assembly of the automobile air brake ABS electromagnetic valve, the second end part of the valve core is matched with the air channel opening of the guide sleeve, namely the sealing position of the air channel opening of the electromagnetic valve is arranged in the guide sleeve assembly, the valve core moves under the guidance of the inner wall of the guide sleeve and is sealed with the air channel opening of the guide sleeve, the sealing and the movement are the same part, and the sealing reliability is greatly improved.
The valve core assembly of the automobile air brake ABS electromagnetic valve is provided with a first end face sealing ring, a second end face sealing ring and a first radial sealing ring. The connecting seal (including first terminal surface sealing washer, second terminal surface sealing washer) between the upper and lower part of the body with the guide pin bushing sets to the end face seal form, when assembly solenoid valve case assembly, respectively only has a radial seal (including first radial seal) cooperation with the upper and lower body fitting surface of solenoid valve, under the prerequisite of guaranteeing sealed effect, has reduced the quantity of radial seal, has greatly reduced the assembly degree of difficulty and has cut a ring risk.
Drawings
FIG. 1 is a schematic structural diagram of a valve core assembly of an automobile air brake ABS solenoid valve provided by an embodiment of the invention;
fig. 2 is a schematic view of an internal structure of a valve core of an automobile air brake ABS solenoid valve provided by an embodiment of the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
11-a guide sleeve, 12-a valve core, 13-a valve core valve, 14-a stop iron, 15-a spring, 16-a spring seat, 17-a coil assembly, 18-a first end face sealing ring, 19-a second radial sealing ring, 20-a second end face sealing ring and 21-a first radial sealing ring.
Detailed Description
The invention provides a valve core assembly of an electromagnetic valve of an automobile air brake ABS (anti-lock brake system), aiming at the technical problems that the valve core assembly of the electromagnetic valve of the air brake ABS system in the prior art is poor in sealing reliability, high in installation matching precision requirement and easy to break a sealing ring during installation.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the invention provides a valve core assembly of an automobile air brake ABS electromagnetic valve, which mainly comprises the following components in parts by weight with reference to figures 1 and 2: coil assembly 17, guide pin bushing 11, valve core 12, stop iron 14 and spring assembly. The first end of the guide sleeve 11 is fixed in the coil assembly 17; specifically, the guide sleeve 11 is fixed in the coil assembly 17 through threads and a yoke. The stop iron 14 is fixed in the first end part of the guide sleeve 11; specifically, the stop iron 14 is connected in the guide sleeve 11 by rolling. The spring assembly is arranged in the stop iron 14; the valve core 12 is arranged in the guide sleeve 11, the first end of the valve core 12 is matched with the air channel opening on the stop iron 14, and when the first end of the valve core 12 is contacted with the air channel opening on the stop iron 14, the air channel opening on the stop iron 14 is sealed. The second end of the valve core 12 is matched with the air channel opening of the guide sleeve 11, and when the second end of the valve core 12 is contacted with the air channel opening of the guide sleeve 11, the air channel opening of the guide sleeve 11 is sealed; preferably, the embodiment of the invention is further provided with a valve core valve 13; the valve core valve 13 is arranged at the second end part of the valve core 12, the valve core valve 13 is matched with the air channel opening of the guide sleeve 11, and when the valve core valve 13 is contacted with the air channel opening of the guide sleeve 11, the air channel opening of the guide sleeve 11 is sealed. The first end of the valve core 12 is connected with the spring component, when the coil assembly 17 is electrified, the valve core 12 compresses the spring component under the action of electromagnetic force, and the first end of the valve core 12 is in contact with and sealed with the air channel opening on the stop iron 14; when the coil assembly 17 loses power, the valve core 12 loses the pushing action of the electromagnetic force, the valve core 12 is reset under the action of the spring assembly, and the first end of the valve core 12 is separated from the air channel opening on the stop iron 14.
In a preferred scheme provided by the embodiment of the invention, referring to fig. 1 and fig. 2, the valve core assembly of the air brake ABS solenoid valve of the automobile further comprises: a first end face seal ring 18, a second end face seal ring 20, a first radial seal ring 21 and a second radial seal ring 19. The first seal groove that the first end of coil assembly 17 and the first end of buting iron 14 connect the department and offer the axial distribution, be provided with in the first seal groove and be used for the sealed coil assembly 17 and the buting iron 14 first end face sealing washer 18 that connects the department clearance. The second end of the coil assembly 17 is provided with a second sealing groove which is axially distributed, and a second end face sealing ring 20 which is used for sealing a gap at the joint of the coil assembly 17 and the valve body is arranged in the second sealing groove. And a third sealing groove which is radially distributed is formed in the outer side of the second end of the guide sleeve 11, and a radial sealing ring for sealing a gap at the joint of the guide sleeve 11 and the valve body is arranged in the third sealing groove. And a fourth sealing groove which is distributed in the radial direction is formed in the outer side of the stop iron 14, and a second radial sealing ring 19 for sealing a gap at the joint of the stop iron 14 and the guide sleeve 11 is arranged in the fourth sealing groove. The first end face sealing ring 18, the second end face sealing ring 20, the first radial sealing ring 21 and the second radial sealing ring 19 are all O-shaped rubber sealing rings.
In a preferred aspect provided in an embodiment of the present invention, a spring assembly includes: a spring seat 16 and a spring 15; the spring seat 16 is fixed inside the stopper 14, one end of the spring 15 is mounted on the spring seat 16, and the other end of the spring 15 is connected to the first end of the spool 12.
In order to reduce the radial sealing ring and ensure the sealing effect, the embodiment of the invention adopts a shaft sealing structure, which specifically comprises the following steps: the first end of the stop iron 14 is provided with a step-shaped structure, the first end of the coil assembly 17 is provided with a step-shaped hole, and the first end of the stop iron 14 is tightly embedded in the step-shaped hole.
In order to further improve the sealing effect, the embodiment of the invention adopts a structural form of increasing the sealing area, and specifically comprises the following steps: the upper end of the stop iron 14 is provided with a circular truncated cone-shaped valve port with a narrow inner part and a wide outer part; the first end of the valve core 12 is arranged to be a circular truncated cone-shaped structure matched with the valve port. The first end of the valve core 12 is detachably disposed in the valve opening of the stop iron 14, and the circular truncated cone structure increases the sealing area compared with the conventional cylindrical sealing structure.
Referring to fig. 1 and 2, in the valve core assembly of the automobile air brake ABS solenoid valve provided by the embodiment of the present invention, when the coil assembly 17 is powered, the valve core 12 is subject to magnetic force generated by the coil and moves, the valve core valve 13 is disengaged from the air channel opening of the guide sleeve 11, the first end of the valve core 12 compresses the spring 15, the first end of the valve core 12 is in close contact with the valve port of the stopper 14 to form a seal, and the gas in the air channel of the valve body enters the guide sleeve 11 through the air channel of the guide sleeve 11 to realize the conduction control of the air channel of the solenoid valve. When the coil assembly 17 loses power, the valve core 12 loses the pushing action of electromagnetic force, the valve core 12 resets under the action of the spring assembly, the first end of the valve core 12 is separated from the air channel opening on the stop iron 14, the valve core valve 13 is contacted with the air channel opening of the guide sleeve 11, and the air in the air channel of the valve body does not enter the guide sleeve 11 any more, so that the disconnection control of the air channel of the electromagnetic valve is realized.
The valve core assembly of the automobile air brake ABS electromagnetic valve provided by the embodiment of the invention at least has the following beneficial effects or advantages:
according to the valve core assembly of the automobile air brake ABS electromagnetic valve, provided by the embodiment of the invention, the first end part of the guide sleeve is fixed in the coil assembly; the stop iron is fixed in the first end part of the guide sleeve; the spring assembly is arranged in the stop iron; the valve core is arranged in the guide sleeve, the first end part of the valve core is matched with the air channel opening on the stop iron, and the second end part of the valve core is matched with the air channel opening of the guide sleeve; the first end of the spool is connected to the spring assembly. According to the valve core assembly of the automobile air brake ABS electromagnetic valve, the second end of the valve core is matched with the air channel opening of the guide sleeve, namely the sealing position of the air channel opening of the electromagnetic valve is arranged in the guide sleeve assembly, the valve core moves under the guidance of the inner wall of the guide sleeve and is sealed with the air channel opening of the guide sleeve, the sealing and the movement are the same part, and the sealing reliability is greatly improved.
The valve core assembly of the automobile air brake ABS electromagnetic valve provided by the embodiment of the invention is provided with a first end face sealing ring, a second end face sealing ring and a first radial sealing ring. The connecting seal (including first terminal surface sealing washer, second terminal surface sealing washer) between the upper and lower part of the body with the guide pin bushing sets to the end face seal form, when assembly solenoid valve case assembly, respectively only has a radial seal (including first radial seal) cooperation with the upper and lower body fitting surface of solenoid valve, under the prerequisite of guaranteeing sealed effect, has reduced the quantity of radial seal, has greatly reduced the assembly degree of difficulty and has cut a ring risk.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. The utility model provides an automobile air braking ABS solenoid valve case assembly which characterized in that includes: the coil assembly (17), the guide sleeve (11), the valve core (12), the stop iron (14) and the spring assembly; the first end part of the guide sleeve (11) is fixed in the coil assembly (17); the stop iron (14) is fixed in the first end part of the guide sleeve (11); the spring assembly is arranged in the stop iron (14); the valve core (12) is arranged in the guide sleeve (11), the first end part of the valve core (12) is matched with the air channel opening on the stop iron (14), and the second end part of the valve core (12) is matched with the air channel opening of the guide sleeve (11); the first end of the spool (12) is connected to the spring assembly.
2. The valve core assembly of the automobile air brake ABS electromagnetic valve according to claim 1, characterized in that, it further comprises: a first end face seal ring (18); the first seal groove that axial distribution was seted up in the first end of coil assembly (17) and the first end of buting iron (14) meets the department, be provided with in the first seal groove and be used for sealing coil assembly (17) with the first end sealing washer (18) of buting iron (14) meets the department clearance.
3. The valve core assembly of the automobile brake ABS electromagnetic valve according to claim 1, characterized in that, it further comprises: a second end face seal ring (20); and a second end part of the coil assembly (17) is provided with a second sealing groove which is axially distributed, and a second end face sealing ring (20) for sealing a gap at the joint of the coil assembly (17) and the valve body is arranged in the second sealing groove.
4. The valve core assembly of the automobile air brake ABS electromagnetic valve according to claim 1, characterized in that, it further comprises: a first radial seal ring (21); and a third sealing groove which is distributed radially is formed in the outer side of the second end of the guide sleeve (11), and a radial sealing ring for sealing a gap at the joint of the guide sleeve (11) and the valve body is arranged in the third sealing groove.
5. The valve core assembly of the automobile air brake ABS electromagnetic valve according to claim 1, characterized in that, it further comprises: a second radial seal ring (19); the outer side of the stop iron (14) is provided with a fourth sealing groove which is distributed in the radial direction, and a second radial sealing ring (19) which is used for sealing a gap at the joint of the stop iron (14) and the guide sleeve (11) is arranged in the fourth sealing groove.
6. The valve core assembly of the automobile air brake ABS electromagnetic valve according to any one of claims 1-5, characterized in that the spring component comprises: a spring seat (16) and a spring (15); the spring seat (16) is fixed inside the stop iron (14), one end of the spring (15) is installed on the spring seat (16), and the other end of the spring (15) is connected with the first end of the valve core (12).
7. The valve core assembly of the automobile air brake ABS electromagnetic valve according to any one of claims 1-5, characterized in that the first end of the stop iron (14) is provided with a stepped structure, the first end of the coil assembly (17) is provided with a stepped hole, and the first end of the stop iron (14) is tightly embedded in the stepped hole.
8. The valve core assembly of the automobile air brake ABS electromagnetic valve according to any one of claims 1-5, characterized in that the upper end of the stop iron (14) is provided with a circular truncated cone-shaped valve port with a narrow inside and a wide outside; the first end part of the valve core (12) is arranged to be a circular truncated cone-shaped structure matched with the valve port.
9. The valve core assembly of the automobile air brake ABS electromagnetic valve according to any one of claims 1-5, characterized by further comprising: a spool valve (13); the valve core valve (13) is arranged at the second end part of the valve core (12), and the valve core valve (13) is matched with the air channel opening of the guide sleeve (11).
10. The valve core assembly of the automobile air brake ABS electromagnetic valve according to any one of claims 1-5, characterized in that the stop iron (14) is connected in the guide sleeve (11) by rolling;
the guide sleeve (11) is fixed in the coil assembly (17) through threads and a yoke.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011174461.2A CN112406827A (en) | 2020-10-28 | 2020-10-28 | Valve core assembly of automobile air brake ABS electromagnetic valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011174461.2A CN112406827A (en) | 2020-10-28 | 2020-10-28 | Valve core assembly of automobile air brake ABS electromagnetic valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112406827A true CN112406827A (en) | 2021-02-26 |
Family
ID=74841531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011174461.2A Pending CN112406827A (en) | 2020-10-28 | 2020-10-28 | Valve core assembly of automobile air brake ABS electromagnetic valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112406827A (en) |
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