CN214617880U - Electromagnetic valve for automobile gearbox - Google Patents
Electromagnetic valve for automobile gearbox Download PDFInfo
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- CN214617880U CN214617880U CN202120814420.9U CN202120814420U CN214617880U CN 214617880 U CN214617880 U CN 214617880U CN 202120814420 U CN202120814420 U CN 202120814420U CN 214617880 U CN214617880 U CN 214617880U
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Abstract
The utility model relates to a solenoid valve for an automobile gearbox, which comprises a valve body, a valve casing, an outer valve casing, an inner valve casing, a valve ball, a valve pad, a coil, a movable iron core, a yoke and a spring, wherein the side wall of the valve casing is provided with an oil drainage port; the outer valve sleeve is arranged in the valve cavity, the front thin section is communicated with the oil inlet to form a front valve hole, the middle section and the valve body are separated to form an oil control cavity, the rear thick section seals a rear opening of the oil control cavity, and the side wall of the middle section is provided with an oil control hole; the inner valve sleeve is arranged in the outer valve sleeve to divide a middle sleeve cavity of the outer valve sleeve into a ball cavity, a front opening of the ball cavity forms a rear valve hole, the valve ball is arranged in the ball cavity to block and open the front valve hole and the rear valve hole, the valve pad seals the rear opening of the valve cavity, and the coil, the movable iron core, the yoke and the spring are all arranged in the valve shell behind the valve body to form a power device for driving the valve ball to move forwards. The utility model discloses compact structure, with low costs, stroke weak point and reaction are sensitive.
Description
Technical Field
The utility model relates to a motor transmission especially relates to a motor transmission's solenoid valve for shifting.
Background
The electromagnetic valve structure that traditional motor transmission shifted and used is all comparatively complicated, and manufacturing cost is higher and the reliability is not good.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a lower and better solenoid valve for shifting of motor transmission of reliability of manufacturing cost.
The technical scheme of the utility model as follows:
a solenoid valve for a motor vehicle transmission, comprising:
a valve body; the front end surface of the valve body is provided with an oil inlet, the rear end surface is provided with a valve cavity, and an oil inlet hole communicated with the oil inlet and the valve cavity is arranged in the valve body;
a valve housing; the valve shell is a front-back split type shell, the front part of the valve body is exposed in the front opening of the valve shell, so that the exposed part of the valve body forms an inserting part, and the oil inlet hole is exposed outside the opening of the valve shell;
an outer valve housing; the outer valve sleeve is arranged in the valve cavity, the outer valve sleeve sequentially comprises a front thin section, a middle section and a rear thick section from front to back, the inner parts of the outer valve sleeve are correspondingly provided with a small sleeve cavity, a middle sleeve cavity and a large sleeve cavity which are mutually communicated, the front thin section of the outer valve sleeve is inserted into a rear orifice of the oil inlet hole so that the small sleeve cavity in the section forms a front valve hole, a oil control cavity is separated between the middle section of the outer valve sleeve and the valve body, the rear thick section is inserted and fixed in the valve cavity to seal a rear opening of the oil control cavity, the oil control cavity is communicated with the middle sleeve cavity in the middle section of the outer valve sleeve through the oil control hole in the side wall of the middle section of the outer valve sleeve, and is communicated with the outside through the oil control hole in the side wall of the exposed part of the valve body;
an inner valve housing; the inner valve sleeve is arranged in the large sleeve cavity of the rear thick section of the outer valve sleeve to divide the middle sleeve cavity of the middle section of the outer valve sleeve into a closed ball cavity, and the front opening of the inner valve sleeve is contracted inwards to form a rear valve hole which is right opposite to the front valve hole in front and back;
a valve ball; the valve ball is movably arranged in the ball cavity back and forth to be used for alternately plugging and opening the front valve hole and the rear valve hole;
a valve pad; the valve pad is arranged in the valve casing behind the valve body and used for plugging a rear opening of the valve cavity, the valve pad and the outer valve sleeve are arranged at a distance to form an oil drainage cavity with the space between the outer valve sleeve and the inner valve sleeve at the rear part of the valve cavity, and the oil drainage cavity is communicated with the outside through an oil drainage hole formed in the side wall of the valve body and an oil drainage opening formed in the side wall of the valve casing;
a coil; the coil is arranged in the valve shell behind the valve pad, and the framework cavity is butted with a through hole arranged on the valve pad;
a movable iron core; the movable iron core is movably arranged in a framework cavity of the coil and a through hole on the valve pad in a front-and-back mode so as to be driven by the coil to move forwards under the power-on driving mode, and a push rod which extends into the rear valve hole and is used for driving the valve ball to move forwards is arranged at the front end of the movable iron core;
a yoke; the yoke iron and the movable iron core are fixedly arranged at the rear end of the valve shell to close the rear opening of the valve shell, and the coil, the valve cushion and the valve body are fixed in the valve shell in an extruding manner;
a spring; the spring is arranged in the valve shell, and the two ends of the spring respectively support the movable iron core and the yoke iron so as to elastically connect the movable iron core to the yoke iron.
Preferably, the valve body is a transverse T-shaped valve body with a thin front part and a thick rear part, the T head of the valve body is clamped in a front neck formed by inward contraction of a front opening of the valve shell, the T column is exposed out of the front opening of the valve shell, the valve cavity is arranged on the rear end face of the T head, the oil drainage hole is arranged on the side part of the T head, the oil inlet is arranged on the front end face of the T column, and the oil control port is arranged on the side part of the T column.
As the preferred scheme, the periphery of the T column of the valve body is sleeved with a sealing sleeve for sealing a connecting gap between the T column and the front neck of the valve shell, and the oil control port is communicated with the outside through a sleeve cavity of the sealing sleeve.
Preferably, a sealing ring for sealing a connection gap between the outer valve sleeve and the valve casing is sleeved on the periphery of the front thin section of the outer valve sleeve.
Preferably, the front-rear width of the ball chamber is as close as possible to the diameter of the ball to minimize the front-rear stroke of the ball while ensuring the opening degree of the front valve hole and the rear valve hole.
Preferably, the valve ball is a steel ball.
As a preferred scheme, the front end of the yoke iron is provided with a convex column inserted into the cavity of the coil framework, and a movable gap of the movable iron core is reserved between the convex column and the movable iron core; the rear end face of the movable iron core and the front end face of the convex column are correspondingly provided with a front spring hole and a rear spring hole respectively, and two ends of the spring are arranged in the front spring hole and the rear spring hole respectively.
As the preferred scheme, the yoke is provided with an exhaust hole for communicating the rear spring hole with the outside.
The utility model discloses a function that less part can realize that motor transmission's solenoid valve should have for shifting compares in traditional like product, the utility model discloses the structure is compacter, and manufacturing cost is lower, and operational reliability is higher. Furthermore, the utility model discloses a valve ball is short with the movable iron core stroke, has the more sensitive advantage of reaction.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the coil according to the embodiment of the present invention when the coil is energized;
fig. 2 is a partial schematic structural diagram of an embodiment of the present invention;
fig. 3 is a second partial schematic structural diagram of the embodiment of the present invention;
fig. 4 is a schematic diagram of the overall structure of the coil according to the embodiment of the present invention when the coil is powered off.
Detailed Description
The present invention will be described with reference to the accompanying drawings and specific embodiments.
For convenience of description, the front and rear directions in the present application are all referred to the plugging direction of the present invention.
Referring to FIGS. 1-3:
a solenoid valve for a motor vehicle transmission comprises a valve housing 2, wherein the valve housing 2 is a front-back split housing.
The electromagnetic valve further comprises a valve body 1, the valve body 1 is of a transverse T shape with a thin front part and a thick rear part, a T head of the valve body 1 is clamped in a front neck formed by inward contraction of a front opening of the valve casing 2, a T column is exposed out of the front opening of the valve casing 2 to form a plug-in part, an oil inlet 1.1 is formed in the front end face of the T column of the valve body 1, a valve cavity 1.2 is formed in the rear end face of the T head, and an oil inlet hole 1.3 for communicating the oil inlet 1.1 with the valve cavity 1.2 is formed in the valve body 1.
The electromagnetic valve also comprises an outer valve sleeve 3, the outer valve sleeve 3 is arranged in a valve cavity 1.2, the outer valve sleeve 3 sequentially comprises a front thin section, a middle section and a rear thick section from front to back, small sleeve cavities, a middle sleeve cavity and a large sleeve cavity which are mutually communicated are correspondingly arranged in the outer valve sleeve 3, the front thin section of the outer valve sleeve 3 is inserted into a rear orifice of the oil inlet hole 1.3 so that the small sleeve cavity in the section forms a front valve hole 3.1, a oil control cavity 1.4 is separated between the middle section of the outer valve sleeve 3 and the valve body 1, the rear thick section is inserted and fixed in the valve cavity 1.2 to seal a rear port of the oil control cavity 1.4, and the oil control cavity 1.4 is communicated with the middle sleeve cavity in the middle section of the outer valve sleeve 3 through the oil control hole 3.2 arranged on the side wall of the middle section of the outer valve sleeve 3 and is communicated with the outside through the oil control port 1.5 arranged on the side wall of the 1T column of the valve body.
The electromagnetic valve also comprises an inner valve sleeve 4, the inner valve sleeve 4 is arranged in a large sleeve cavity of a rear thick section of the outer valve sleeve 3 to separate a middle sleeve cavity of a middle section of the outer valve sleeve 3 into a closed ball cavity 3.3, and a front opening of the inner valve sleeve 4 is contracted inwards to form a rear valve hole 4.1 which is opposite to the front valve hole 3.1 in front and back;
the electromagnetic valve also comprises a valve ball 5, wherein the valve ball 5 is a steel ball, and the valve ball 5 is movably arranged in the ball cavity 3.3 back and forth so as to be used for alternately plugging and opening the front valve hole 3.1 and the rear valve hole 4.1; the front-to-back width of the ball chamber 3.3 is as close as possible to the diameter of the ball 5 to minimize the front-to-back stroke of the ball 5 while ensuring the opening of the front valve hole 3.1 and the rear valve hole 4.1.
The electromagnetic valve further comprises a valve pad 6, the valve pad 6 is arranged in the valve casing 2 behind the valve body 1 and used for plugging a rear opening of the valve cavity 1.2, the valve pad 6 and the outer valve sleeve 3 are arranged at a distance from each other to form an oil drainage cavity 1.6 with the outer valve sleeve 3 and the inner valve sleeve 4 at the rear part of the valve cavity 1.2, and the oil drainage cavity 1.6 is communicated with the outside through an oil drainage hole 1.7 formed in the side part of the T-shaped end of the valve body 1 and an oil drainage opening 2.1 formed in the side wall of the valve casing 2.
The electromagnetic valve also comprises a coil 7, wherein the coil 7 is arranged in the valve shell 2 behind the valve gasket 6, and the framework cavity is butted with a through hole 6.1 arranged on the valve gasket 6.
The electromagnetic valve further comprises a movable iron core 8, the movable iron core 8 is movably arranged in a framework cavity of the coil 7 and a through hole 6.1 in the valve pad 6 back and forth to be driven by the coil 7 to move forwards, a push rod 8.1 which extends into the rear valve hole 4.1 to drive the valve ball 5 to move forwards is arranged at the front end of the movable iron core 8, and a front spring hole 8.2 is arranged at the rear end face of the movable iron core.
The electromagnetic valve also comprises a yoke 9, wherein the yoke 9 is fixedly arranged at the rear end of the valve casing 2 to close the rear opening of the valve casing 2 and press and fix the coil 7, the valve gasket 6 and the valve body 1 in the valve casing 2; the front end of the yoke 9 is provided with a convex column 9.1 inserted into the framework cavity of the coil 7, and a distance is arranged between the convex column 9.1 and the movable iron core 8 so as to leave a movable gap of the movable iron core 8; the front end surface of the convex column 9.1 is provided with a rear spring hole 9.2 corresponding to the front spring hole 8.2, and the inside of the convex column is provided with an exhaust hole 9.3 communicating the rear spring hole 9.2 with the outside.
The electromagnetic valve further comprises a spring 10, the spring 10 is arranged in the valve housing 2, and two ends of the spring 10 are respectively arranged in the front spring hole 8.2 and the rear spring hole 9.2 to respectively support the movable iron core 8 and the yoke 9 so as to elastically connect the movable iron core 8 to the yoke 9.
The electromagnetic valve further comprises a sealing sleeve 11, wherein the sealing sleeve 11 is sleeved on the periphery of the T column of the valve body 1 to be used for sealing a connecting gap between the T column and the front neck of the valve casing 2, and the oil control port 1.4 is communicated with the outside through a sleeve cavity of the sealing sleeve 11.
The electromagnetic valve further comprises a sealing ring 12, and the sealing ring 12 is sleeved on the periphery of the front thin section of the outer valve sleeve 3 for sealing a connecting gap between the outer valve sleeve and the valve housing 2.
As shown in fig. 4, when the coil 7 is in the power-off state: high-pressure oil is input from the oil inlet 1.1, because the high-pressure oil pressure at the oil inlet 1.1 is greater than the tension of the spring 10, the spring 10 is compressed, the valve ball 5 and the movable iron core 8 are pushed to retreat until the valve ball 5 opens the front valve hole 3.1 and closes the rear valve hole 4.1, a passage between the oil control port 1.5 and the oil drainage port 2.1 is closed, and the high-pressure oil input from the oil inlet 1.1 enters the oil control port 1.5 along the oil inlet 1.3, the front valve hole 3.1, the ball cavity 3.3, the oil control hole 3.2 and the oil control cavity 1.4 and is output from the oil control port 1.5 to form an oil inlet passage.
As shown in fig. 1, when the coil 7 is in the energized state: the coil 7 is electrified to generate forward electromagnetic force, the coil and the spring 10 drive the movable iron core 8 to push the valve ball 5 to move forward until the valve ball 5 opens the rear valve hole 4.1 and closes the front valve hole 3.1, a passage between the oil inlet 1.1 and the oil control port 1.5 is closed, and the oil control port 1.5 and the oil drainage port 2.1 are communicated with each other through the oil control cavity 1.4, the oil control hole 3.2, the ball cavity 3.3, the rear valve hole 4.1, the oil drainage cavity 1.6 and the oil drainage hole 1.7 to form an oil drainage passage.
Claims (8)
1. A solenoid valve for a motor vehicle transmission, characterized by comprising:
a valve body (1); the front end surface of the valve body (1) is provided with an oil inlet (1.1), the rear end surface is provided with a valve cavity (1.2), and an oil inlet hole (1.3) which is communicated with the oil inlet (1.1) and the valve cavity (1.2) is arranged inside the valve body;
a valve housing (2); the valve casing (2) is a front-back split casing, the front part of the valve body (1) is exposed in the front opening of the valve casing (2) so that the exposed part forms an inserting part, and the oil inlet hole (1.2) is exposed outside the front opening of the valve casing (2);
an outer valve housing (3); the outer valve sleeve (3) is arranged in the valve cavity (1.2), the outer valve sleeve (3) sequentially comprises a front thin section, a middle section and a rear thick section from front to back, small sleeve cavities, a middle sleeve cavity and a large sleeve cavity which are mutually communicated are correspondingly arranged in the outer valve sleeve (3), the front thin section of the outer valve sleeve (3) is inserted into the rear hole opening of the oil inlet hole (1.3) so that the small sleeve cavity in the section forms a front valve hole (3.1), a oil control cavity (1.4) is separated between the middle section of the outer valve sleeve (3) and the valve body (1), the rear thick section is inserted and fixed in the valve cavity (1.2) so as to seal a rear opening of the oil control cavity (1.4), and the oil control cavity (1.4) is communicated with the middle sleeve cavity in the middle section of the outer valve sleeve (3) through the oil control hole (3.2) formed in the side wall of the middle section of the outer valve sleeve (3) and is communicated with the outside through the oil control opening (1.5) formed in the side wall of the exposed part of the valve body (1);
an inner valve housing (4); the inner valve sleeve (4) is arranged in a large sleeve cavity of a rear thick section of the outer valve sleeve (3) to separate a middle sleeve cavity of a middle section of the outer valve sleeve (3) into a closed ball cavity (3.3), and a front opening of the inner valve sleeve (4) is retracted inwards to form a rear valve hole (4.1) which is right opposite to the front and rear of the front valve hole (3.1);
a valve ball (5); the valve ball (5) is movably arranged in the ball cavity (3.3) back and forth so as to be used for alternately plugging and opening the front valve hole (3.1) and the rear valve hole (4.1);
a valve pad (6); the valve pad (6) is arranged in the valve casing (2) behind the valve body (1) and used for plugging a rear opening of the valve cavity (1.2), the valve pad (6) and the outer valve sleeve (3) are arranged at a distance from each other to form an oil drainage cavity (1.6) between the valve pad and the outer valve sleeve (3) and between the valve pad and the inner valve sleeve (4) and at the rear part of the valve cavity (1.2), and the oil drainage cavity (1.6) is communicated with the outside through an oil drainage hole (1.7) formed in the side wall of the valve body (1) and an oil drainage opening (2.1) formed in the side wall of the valve casing (2);
a coil (7); the coil (7) is arranged in the valve shell (2) behind the valve pad (6) and the framework cavity is butted with a through hole (6.1) arranged on the valve pad (6);
a movable iron core (8); the movable iron core (8) is movably arranged in the framework cavity of the coil (7) and the through hole (6.1) on the valve pad (6) back and forth so as to be driven by the coil (7) to move forwards, and the front end of the movable iron core is provided with a push rod (8.1) which extends into the rear valve hole (4.1) and is used for driving the valve ball (5) to move forwards;
a yoke (9); the yoke (9) and the movable iron core (8) are fixedly arranged at the rear end of the valve shell (2) to close the rear opening of the valve shell (2), and the coil (7), the valve pad (6) and the valve body (1) are fixed in the valve shell (2) in an extruding way;
a spring (10); the spring (10) is arranged in the valve casing (2), and two ends of the spring respectively support the movable iron core (8) and the yoke (9) so as to elastically connect the movable iron core (8) to the yoke (9).
2. A solenoid valve for a vehicle transmission according to claim 1, wherein: the valve body (1) is in the neck in the front that contracts in the valve casing (2) front opening and the T post that thick horizontal T type and its T head joint formed in the front thin back exposes outside the front opening of valve casing (2), and T head rear end face is located in valve pocket (1.2), and T head lateral part is located in bleeder port (1.7), and the terminal surface before the T post is located in oil inlet (1.1), accuse hydraulic fluid port (1.4) locate T post lateral part.
3. A solenoid valve for a vehicle transmission according to claim 2, wherein: a sealing sleeve (11) for sealing a connecting gap between the T column of the valve body (1) and the front neck of the valve shell (2) is sleeved on the periphery of the T column, and the oil control port (1.4) is communicated with the outside through a sleeve cavity of the sealing sleeve (11).
4. A solenoid valve for a vehicle transmission according to claim 1, wherein: the periphery of the front thin section of the outer valve sleeve (3) is sleeved with a sealing ring (12) for sealing a connecting gap between the outer valve sleeve and the valve shell (2).
5. A solenoid valve for a vehicle transmission according to claim 1, wherein: the front and back width of the ball cavity (3.3) is as close as possible to the diameter of the valve ball (5) under the condition of ensuring the opening degree of the front valve hole (3.1) and the back valve hole (4.1) so as to minimize the front and back stroke of the valve ball (5).
6. A solenoid valve for a vehicle transmission according to claim 5, wherein: the valve ball (5) is a steel ball.
7. A solenoid valve for a vehicle transmission according to claim 1, wherein: the front end of the yoke (9) is provided with a convex column (9.1) inserted into the framework cavity of the coil (7), and a movable gap of the movable iron core (8) is reserved between the convex column (9.1) and the movable iron core (8); the rear end face of the movable iron core (8) and the front end face of the convex column (9.1) are correspondingly provided with a front spring hole (8.2) and a rear spring hole (9.2), and two ends of the spring (10) are respectively arranged in the front spring hole (8.2) and the rear spring hole (9.2).
8. The electromagnetic valve for the automobile transmission according to claim 7, characterized in that: the yoke (9) is provided with an exhaust hole (9.3) which is communicated with the rear spring hole (9.2) and the outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120814420.9U CN214617880U (en) | 2021-04-20 | 2021-04-20 | Electromagnetic valve for automobile gearbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120814420.9U CN214617880U (en) | 2021-04-20 | 2021-04-20 | Electromagnetic valve for automobile gearbox |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214617880U true CN214617880U (en) | 2021-11-05 |
Family
ID=78403952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120814420.9U Active CN214617880U (en) | 2021-04-20 | 2021-04-20 | Electromagnetic valve for automobile gearbox |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214617880U (en) |
-
2021
- 2021-04-20 CN CN202120814420.9U patent/CN214617880U/en active Active
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