CN210566559U - Proportional solenoid valve for controlling clutch - Google Patents
Proportional solenoid valve for controlling clutch Download PDFInfo
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- CN210566559U CN210566559U CN201920813388.5U CN201920813388U CN210566559U CN 210566559 U CN210566559 U CN 210566559U CN 201920813388 U CN201920813388 U CN 201920813388U CN 210566559 U CN210566559 U CN 210566559U
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- 239000007788 liquid Substances 0.000 claims description 37
- 230000007704 transition Effects 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 2
- 238000010992 reflux Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000004512 die casting Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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Abstract
The utility model relates to a clutch control device, in particular to a proportional solenoid valve for controlling a clutch; the valve plate solves the technical problems that the requirement on the die-casting precision of the valve plate in the existing proportional electromagnetic valve is high, the manufacturing process of forming the oil groove on the valve plate is complex, and the cost is high. A proportional solenoid valve for controlling a clutch includes an electromagnetic drive and a valve assembly; the electromagnetic driving device comprises an armature, an armature tie rod, a return spring type element and at least two magnetic coils; the valve assembly comprises a valve plate, a valve core supporting sleeve and a valve core which are sequentially sleeved from outside to inside; a return spring is arranged between the right end of the valve core and the valve plate; the outer circle of the valve core support sleeve is matched with the inner hole of the valve plate, and the inner hole of the valve core support sleeve is matched with the outer circle of the valve core; the valve core support sleeve is sequentially provided with a first ring groove, a second ring groove, a third ring groove and a fourth ring groove along the axial direction; the bottom of the first ring groove is provided with a backflow hole, and the outer wall of the valve core support sleeve is provided with a backflow channel communicated with the third ring groove and the backflow hole.
Description
Technical Field
The utility model relates to a clutch control device, concretely relates to proportional solenoid valve for controlling clutch.
Background
With the popularization of automatic transmission automobiles, the application of the control clutch becomes more and more extensive. The clutch is controlled to be opened or closed through an electro-hydraulic system to realize automatic speed changing or automatic gear shifting. The electro-hydraulic system generally controls the opening or closing of the clutch by controlling the oil quantity of an oil circuit through a proportional solenoid valve.
Conventional proportional solenoid valves generally include an electromagnetic drive assembly including an electromagnetic coil, an armature, and an armature tie rod; the valve assembly comprises a valve plate, a valve core arranged in the valve plate and a return spring arranged at the bottom of the valve core.
The valve plate is provided with a liquid inlet, a liquid outlet and an oil duct, wherein the oil duct is arranged in the side wall of the valve plate; the liquid inlet hole is communicated with the external hydraulic station and the inner cavity of the valve plate, the liquid outlet is communicated with the inner cavity of the valve plate and the outside of the valve plate, and the oil duct is communicated with the inner cavity of the valve plate and the liquid inlet of the clutch.
When the valve works, the electromagnetic coil is electrified to generate electromagnetic force, and the electromagnetic force acts on the armature to move the armature, so that the armature tie rod is driven to push the valve core, and a return spring connected to the valve core is compressed. Because the electromagnetic force pushing the armature to move is in direct proportion to the current passing through the electromagnetic coil, the current can directly control the stroke of the valve core, thereby controlling the flow rate of the oil-liquid passage in the valve body and the opening and closing state of the oil passage.
Because the valve plate among the current proportion solenoid valve is mostly the foundry goods, and is higher to the requirement of die-casting precision, and sets up multichannel oil groove on the valve plate is inside, and manufacturing process is complicated, with high costs.
SUMMERY OF THE UTILITY MODEL
In order to solve the valve plate die-casting required precision among the current proportion solenoid valve higher, set up the technical problem that oil groove manufacturing process is complicated, with high costs on the valve plate, the utility model provides a proportion solenoid valve for controlling clutch.
The technical solution of the utility model is that:
a proportional solenoid valve for controlling a clutch includes an electromagnetic drive and a valve assembly; the electromagnetic driving device comprises an armature, an armature tie rod, a return spring type element and at least two magnetic coils; it is characterized in that:
the valve assembly comprises a valve plate, a valve core supporting sleeve and a valve core which are sequentially sleeved from outside to inside; a return spring is arranged between the right end of the valve core and the valve plate; the outer circle of the valve core support sleeve is matched with the inner hole of the valve plate, and the inner hole of the valve core support sleeve is matched with the outer circle of the valve core;
the inner wall of the valve core supporting sleeve is sequentially provided with a first ring groove, a second ring groove, a third ring groove and a fourth ring groove along the axial direction; the first ring groove is used as a reflux groove; the second ring groove is used as a supply groove; the third ring groove is used as a control groove; the fourth ring groove is used as a pressure reduction groove; the second ring groove, the third ring groove and the fourth ring groove partially penetrate through the side wall of the valve core supporting sleeve;
first annular, second annular, third annular, fourth annular can set gradually from left to right, also can set gradually from right to left, specifically:
the fourth ring groove is close to the right end of the valve core supporting sleeve; the valve core comprises a valve head and three sections of valve cores; the diameter of the upper section of the valve core is smaller than that of the middle section of the valve core; a connecting part with the diameter smaller than that of the valve core is arranged between the two adjacent sections of valve cores, wherein the connecting part between the middle section of the valve core and the lower section of the valve core is three sections, the two sections positioned at the two ends are both cylinders, the transition section in the middle is a circular truncated cone, and the diameter of the cylinder close to the middle section of the valve core is smaller than that of the cylinder at the other end;
or the fourth ring groove is close to the left end of the valve core supporting sleeve; the valve core comprises a valve head and three sections of valve cores; the outer diameter of the lower section of the valve core is smaller than the diameter of the middle section of the valve core; a connecting part with the diameter smaller than that of the valve core is arranged between the two adjacent sections of valve cores, wherein the connecting part between the upper section of the valve core and the middle section of the valve core is three sections, the two sections positioned at the two ends are both cylinders, the transition section in the middle is a circular truncated cone, and the diameter of the cylinder close to the middle section of the valve core is smaller than that of the cylinder at the other end;
the bottom of the first ring groove is provided with a backflow hole, and the outer wall of the valve core support sleeve is provided with a backflow channel communicated with the third ring groove and the backflow hole;
the side wall of the valve plate is provided with a liquid inlet, a liquid outlet and an oil duct; the liquid inlet is communicated with the second annular groove; the liquid outlet is communicated with the fourth ring groove; the inlet of the oil duct is communicated with the third ring groove, and the outlet of the oil duct is communicated with a liquid inlet of the clutch;
when the valve core is positioned at a left limit position, the second ring groove is communicated with the third ring groove; oil flows in from the liquid inlet of the valve plate, sequentially flows through the second annular groove and the third annular groove, one part of the oil pushes the clutch after passing through the oil passage in the valve plate, and the other part of the oil enters the first annular groove through the backflow passage and the backflow hole;
when the valve core is positioned at the right limit position, the third ring groove is communicated with the fourth ring groove; and part of oil in the third annular groove and the fourth annular groove flows out from the oil outlet of the valve plate, and the other part of oil enters the first annular groove through the backflow channel and the backflow hole.
Furthermore, in order to balance the pressure of the inner cavity and the outer cavity of the valve core support sleeve and the pressure of the inner cavity and the outer cavity of the valve core and improve the stability of the valve core, the left end of the valve core support sleeve is provided with a pressure discharge groove, and the right end of the valve core support sleeve is provided with a first pressure balance groove; and a second pressure balance groove is formed at the right end of the valve core.
Furthermore, in order to balance pressure and increase the stability of the valve core, a circular arc-shaped flow-slowing groove is formed in the transition surface of each cylinder and the valve core section; the depth of the flow-slowing groove is 3 mm.
Furthermore, in order to avoid the deviation of the valve core caused by uneven oil distribution or self gravity, the outer circular surfaces of the upper section of the valve core, the middle section of the valve core and the lower section of the valve core are provided with a group of annular pressure reduction grooves.
Further, the number of the annular pressure reduction grooves in each group is three, and the distance between every two adjacent annular pressure reduction grooves is larger than or equal to 1 mm.
Further, the width of the first ring groove is 14mm to 15mm, and the depth thereof is 3mm to 4 mm.
Furthermore, the diameter of the backflow hole is 0.6-1 mm.
Further, the included angle between the backflow channel and the axis of the valve core support sleeve is 45 degrees.
Further, a spring limiting seat is arranged inside the valve plate.
The utility model discloses compare prior art's beneficial effect is:
1. the utility model discloses set up case support cover between valve plate and case, all offer first annular, second annular, third annular and fourth annular on the case support cover, reduced the requirement to valve plate die-casting precision, simplified the manufacturing process of valve plate, reduced manufacturing cost.
2. The utility model discloses set up the backward flow hole in the bottom of backward flow groove, support the outer wall of cover at the case and set up the backward flow passageway of intercommunication second backward flow groove and backward flow hole, the utility model discloses a case divide into the three-section, and wherein the diameter of two case sections that are close to the backward flow groove is different, can provide according to actual need with the same or the same power of spring force direction of electromagnetic means thrust direction.
3. The utility model discloses be equipped with pressure discharge groove at the left end that the case supported the cover, its right-hand member is equipped with first pressure balance groove, is equipped with second pressure balance groove at the right-hand member of case simultaneously, can balance the pressure of exocoel in case support cover and the case, improves the stability, the noise reduction of case.
4. The utility model discloses all be equipped with convex creep groove at every cylinder of case connecting portion and the transition face of the valve core section that corresponds, can balance the pressure of case, increase the stability of case.
5. The utility model discloses a case supports cover and case can be the part of same batch production, and the blank is the bar, can save material, reduces the processing degree of difficulty, reduces process time to reduce cost.
Drawings
Fig. 1 is a structural view (partial sectional view) of embodiment 1 of the present invention;
FIG. 2 is a perspective view of a valve core support sleeve in embodiment 1;
fig. 3 is a sectional view of a spool support sleeve in embodiment 1;
FIG. 4 is a schematic structural view of a valve body in embodiment 1;
FIG. 5 is a state view (partially sectional view) of the valve body in the right extreme position in embodiment 1;
FIG. 6 is a flow diagram of the oil at operating pressure in example 1;
fig. 7 is a structural view of embodiment 2 of the present invention;
fig. 8 is a schematic structural view (partial sectional view) of a spool support sleeve in embodiment 2;
the reference signs are:
1-armature, 2-armature tie-rod, 3-magnetic coil, 4-valve head, 5-valve core support sleeve, 6-valve core, 8-return spring, 9-return spring element, 10-annular pressure-reducing groove, 11-first pressure-balancing groove, 12-valve plate, 14-return hole, 17-second pressure-balancing groove, 18-spring retainer, 19-electromagnetic drive device retainer, 21-housing chamber, 22-first ring groove (return groove), 23-second ring groove (supply groove), 24-third ring groove (control groove), 25-fourth ring groove (pressure-reducing groove), 26-spring housing chamber, 28-positioning groove, 30-pressure-discharge groove, 31-return channel, 32-valve core upper section, 33-valve core middle section, 34-a lower valve core section, 35-a liquid inlet, 36-a liquid outlet and 37-an oil channel.
Detailed Description
The invention is further described with reference to the accompanying drawings and specific embodiments.
Example 1:
referring to fig. 1, the proportional solenoid valve for controlling a clutch includes an electromagnetic driving device and a valve assembly; the electromagnetic drive device comprises an armature 1, an armature tie rod 2, a return spring element 9 and at least two magnetic coils 3.
The valve assembly comprises a valve plate 12, a valve core support sleeve 5 and a valve core 6 which are sequentially sleeved from outside to inside. The right end of the valve core 6 is provided with a spring accommodating cavity 26, a return spring 8 is arranged in the spring accommodating cavity 26, and a spring limiting seat 18 is arranged inside the valve plate 12. The outer circle of the valve core support sleeve 5 is matched with the inner hole of the valve plate 12, and the inner hole of the valve core support sleeve 5 is matched with the outer circle of the valve core 6. The contact surface of the armature tie rod 2 and the valve core 6 is a plane, so that the valve core 6 can be more effectively pushed to move axially.
Referring to fig. 2 and 3, a return groove 22, a supply groove 23, a control groove 24, and a pressure-reducing groove 25 are provided in this order in the axial direction on the inner wall of the valve body support sleeve 5. The pressure-reducing groove 25 is near the right end of the spool support sleeve 5. The supply groove 23, the control groove 24, and the pressure-reducing groove 25 partially penetrate the side wall of the valve body support sleeve 5. The distance between the return groove 22 and the supply groove 23 is 2.8mm, the distance between the supply groove 23 and the control groove 24 is 8.5mm to 8.9mm, the distance between the control groove 24 and the depressurization groove 25 is 2.8mm, the width of the return groove 22 is 14mm to 15mm, and the depth is 3mm to 4mm, so that enough oil liquid can be ensured in the return groove 22.
The bottom of the return groove 22 is provided with a return hole 14, and the outer wall of the valve core support sleeve 5 is provided with a return channel 31 communicating the control groove 24 and the return hole 14. The diameter of the backflow hole 14 is 0.6-1 mm. The angle between the return channel 31 and the axis of the valve core support sleeve 5 is 45 degrees.
Referring to fig. 4, the valve core 6 includes a valve head 4, a valve core upper section 32, a valve core middle section 33, and a valve core lower section 34; the diameter of the valve core upper section 32 is smaller than that of the valve core middle section 33; and a connecting part with the diameter smaller than that of the valve core is arranged between two adjacent sections of valve cores, wherein the connecting part between the middle section 33 of the valve core and the lower section 34 of the valve core is three sections, two sections positioned at two ends are cylinders, the transition section in the middle is a circular truncated cone, and the diameter of the cylinder close to the middle section 33 of the valve core is smaller than that of the cylinder at the other end. When the supply groove 23 is communicated with the control groove 24, when oil passes through an overflowing section formed between a connecting part between the middle section 33 of the valve core and the lower section 34 of the valve core and the valve core support sleeve 5, the flowing direction of the oil is converged at one point position on the valve core 6, the connecting part between the middle section 33 of the valve core and the lower section 34 of the valve core is three sections, two sections at two ends are cylinders, the transition section in the middle is a circular truncated cone, and the diameter of the cylinder close to the middle section 33 of the valve core is smaller than that of the cylinder at the other end.
The transition surfaces of the two cylinders and the valve core section are provided with arc-shaped buffering grooves 16; the degree of depth of slow-flow groove 16 is 3mm, and the interval between two slow-flow grooves is 9.2mm to 9.6mm, and when fluid passed through 23 flow direction control grooves 24 of feed tank, perhaps flowed to the pressure reduction groove 25 from control groove 24, this slow-flow groove 16 multiplicable overflow cross section's area can also reduce the impact pressure of fluid when increasing the flow to reduce the vibration range and the frequency of case 6, improve control system's stability.
In order to avoid the phenomenon that the valve core 6 is deviated due to uneven oil distribution or self gravity, and further the integral control system is unstable and the noise is increased, the outer circular surfaces of the valve core upper section 32, the valve core middle section 33 and the valve core lower section 34 are provided with a group of annular pressure reduction grooves 10. The number of each group of annular pressure reduction grooves 10 is three, and the distance between two adjacent annular pressure reduction grooves 10 is more than or equal to 1 mm. When oil in the annular cavity between the valve core 6 and the valve core support sleeve 5 passes through the annular pressure reduction groove 10, a flow bypassing effect can be generated, so that the pressure at two ends of the annular oil passage is reduced and balanced.
Referring to fig. 1 and 2, the outer wall of the valve core support sleeve 5 is provided with a positioning groove 28, and a positioning pin of a columnar electromagnetic valve can be embedded into the positioning groove to limit the position of the valve core 6. The left end of the valve core support sleeve 5 is provided with an annular electromagnetic driving device limiting table 19 and a pressure discharge groove 30. The solenoid actuator has a hollow receiving chamber 21 for receiving and connecting the valve head 4. After the system operates, a closed space filled with negative pressure oil liquid is formed in the accommodating cavity 21, so that the axial movement of the valve core 6 is blocked, and the negative pressure in the accommodating cavity 21 can be discharged through the pressure discharge groove 30, so that the control difficulty of the control system is reduced.
The right end of the valve core support sleeve 5 is provided with a first pressure balance groove 11, and the right end of the valve core 6 is provided with a second pressure balance groove 17. The two balance grooves can balance the pressure outside the return spring accommodating cavity and the valve plate 12, so that the force which can block the normal movement of the valve core 6 is prevented from being formed in the return spring accommodating cavity, and the control difficulty of the proportional electromagnetic regulation is reduced.
Referring to fig. 1, the side wall of the valve plate 12 is provided with a liquid inlet 35, a liquid outlet 36, and an oil passage 37. The liquid inlet 35 is communicated with the supply groove 23; the liquid outlet 36 is communicated with the depressurization groove 25; the inlet of the oil passage 37 is communicated with the control groove 24, and the outlet of the oil passage is communicated with the liquid inlet of the clutch.
Referring to fig. 1, 5 and 6, the proportional solenoid valve for controlling the clutch operates as follows:
when the clutch needs to be opened or closed, the power supply of the electromagnetic driving device is cut off, the magnetic coil 3 loses power, the electromagnetic force acting on the armature 1 disappears, the reset spring 8 pushes the valve core 6, the armature 1, the armature tie rod 2 and the reset spring type element 9 to move leftwards, at the moment, the proportional electromagnetic valve for controlling the clutch is opened, and the supply groove 23 is communicated with the control groove 24; the oil liquid flows in from the liquid inlet 35 of the valve plate 12 and sequentially flows through the supply groove 23 and the control groove 24, a part of the oil liquid pushes the clutch to be closed after passing through the oil passage 37 in the valve plate 12, the other part of the oil liquid enters the return groove 22 through the return passage 31 and the return hole 14, and the pressure of the liquid in the return groove 22 is used for buffering the elastic force of the return spring 8.
When the state of the clutch needs to be changed, the power supply of the electromagnetic driving device is restored, the magnetic coil 3 is electrified, the electromagnetic force generated by the magnetic coil 3 acts on the armature 1, the armature 1 drives the armature tie rod 2 and the return spring type element 9 to move rightwards, the armature tie rod 2 pushes the valve element 6 to move rightwards, the valve element 6 compresses the return spring 8 and then contacts with the bottom of the valve hole of the valve plate 12, at the moment, the proportional electromagnetic valve for controlling the clutch is closed, and the supply groove 23 and the control groove 24 are disconnected. A part of oil in the control groove 24 and the pressure reducing groove 25 enters the return groove 22 through the return channel 31 and the return hole 14, and because the diameter of the middle valve core section 33 on the right side of the return groove 22 is larger than that of the upper valve core end 32 on the left side of the return groove 22, the liquid in the return groove 22 pushes the right side of the valve core 6 to move, and at the moment, the force pushing the valve core 6 is equal to the sum of the electromagnetic force and the oil pressure in the return groove 22. And the other part of oil in the control groove 24 and the pressure reducing groove 25 flows out through an oil outlet of the valve plate 12.
The electromagnetic driving device in the proportional electromagnetic valve for controlling the clutch can generate the closing state of each oil liquid passage under the condition of high power frequency, thereby indirectly controlling the trend of the oil liquid and finally finishing the effect of controlling the closing of the clutch.
Example 2:
referring to fig. 7 and 8, embodiment 2 is similar in structure to embodiment 1 except that:
the pressure reduction groove 25 is close to the left end of the valve core support sleeve 5; the valve core 6 comprises a valve head 4 and three sections of valve cores; the outer diameter of the lower valve core section 34 is smaller than that of the middle valve core section 33; a connecting part with the diameter smaller than that of the valve core is arranged between two adjacent sections of valve cores, wherein the connecting part between the upper section 32 of the valve core and the middle section 33 of the valve core is three sections, two sections positioned at two ends are cylinders, the transition section in the middle is a circular truncated cone, and the diameter of the cylinder close to the middle section 33 of the valve core is smaller than that of the cylinder at the other end. Since the diameter of the middle spool part 33 on the left side of the return groove 22 is larger than the diameter of the lower spool end 4 on the right side of the return groove 22, the force pushing the spool 6 is equal to the difference between the electromagnetic force and the oil pressure in the return groove 22.
The electromagnetic driving device in the proportional electromagnetic valve for controlling the clutch can generate the closing state of each oil liquid passage under the condition of low electric frequency, thereby indirectly controlling the trend of the oil liquid and finally finishing the effect of controlling the closing of the clutch.
The above is only the embodiment of the present invention, and is not the limitation of the protection scope of the present invention, all the equivalent structure changes made in the contents of the specification and the drawings, or the direct or indirect application in other related technical fields are included in the patent protection scope of the present invention.
Claims (9)
1. A proportional solenoid valve for controlling a clutch includes an electromagnetic drive and a valve assembly; the electromagnetic driving device comprises an armature (1), an armature tie rod (2), a return spring type element (9) and at least two magnetic coils (3);
the method is characterized in that:
the valve assembly comprises a valve plate (12), a valve core support sleeve (5) and a valve core (6) which are sequentially sleeved from outside to inside; a return spring (8) is arranged between the right end of the valve core (6) and the valve plate (12); the excircle of the valve core support sleeve (5) is matched with the inner hole of the valve plate (12), and the inner hole of the valve core support sleeve (5) is matched with the excircle of the valve core (6);
the inner wall of the valve core support sleeve (5) is sequentially provided with a first ring groove (22), a second ring groove (23), a third ring groove (24) and a fourth ring groove (25) along the axial direction; the first ring groove (22) is used as a reflux groove; the second ring groove (23) is used as a supply groove; the third ring groove (24) is used as a control groove; the fourth ring groove (25) is used as a pressure reducing groove; the second ring groove (23), the third ring groove (24) and the fourth ring groove (25) partially penetrate through the side wall of the valve core support sleeve (5);
the fourth annular groove (25) is close to the right end of the valve core support sleeve (5); the valve core (6) comprises a valve head (4) and three sections of valve cores; the diameter of the valve core upper section (32) is smaller than that of the valve core middle section (33); a connecting part with the diameter smaller than that of the valve core is arranged between the two adjacent sections of valve cores, wherein the connecting part between the middle section (33) of the valve core and the lower section (34) of the valve core is divided into three sections, the two sections positioned at the two ends are both cylinders, the transition section in the middle is a circular table, and the diameter of the cylinder close to the middle section (33) of the valve core is smaller than that of the cylinder at the other end;
or the fourth ring groove (25) is close to the left end of the valve core support sleeve (5); the valve core (6) comprises a valve head (4) and three sections of valve cores; the outer diameter of the lower valve core section (34) is smaller than the diameter of the middle valve core section (33); a connecting part with the diameter smaller than that of the valve core is arranged between the two adjacent sections of valve cores, wherein the connecting part between the upper section (32) of the valve core and the middle section (33) of the valve core is divided into three sections, the two sections positioned at the two ends are both cylinders, the transition section in the middle is a circular truncated cone, and the diameter of the cylinder close to the middle section (33) of the valve core is smaller than that of the cylinder at the other end;
the bottom of the first ring groove (22) is provided with a backflow hole (14); the outer wall of the valve core support sleeve (5) is provided with a backflow channel (31) which is communicated with the third annular groove (24) and the backflow hole (14);
the valve plate (12) is provided with a liquid inlet (35), a liquid outlet (36) and an oil duct (37); the liquid inlet (35) is communicated with the second annular groove (23); the liquid outlet (36) is communicated with the fourth annular groove (25); the inlet of the oil duct (37) is communicated with the third ring groove (24), and the outlet of the oil duct is communicated with a liquid inlet of the clutch;
when the valve core (6) is at a left limit position, the second ring groove (23) is communicated with the third ring groove (24); oil flows in from a liquid inlet of the valve plate (12), sequentially flows through the second annular groove (23) and the third annular groove (24), one part of the oil pushes the clutch after passing through an oil duct (37) in the valve plate (12), and the other part of the oil enters the first annular groove (22) through a backflow channel (31) and a backflow hole (14);
when the valve core (6) is at the right limit position, the third ring groove (24) is communicated with the fourth ring groove (25); and a part of oil in the third annular groove (24) and the fourth annular groove (25) flows out through an oil outlet of the valve plate (12), and the other part of oil enters the first annular groove (22) through a backflow channel (31) and a backflow hole (14).
2. A proportional solenoid valve for controlling a clutch as claimed in claim 1, wherein: the left end of the valve core support sleeve (5) is provided with a pressure discharge groove (30), and the right end of the valve core support sleeve is provided with a first pressure balance groove (11); and a second pressure balance groove (17) is formed at the right end of the valve core (6).
3. A proportional solenoid valve for controlling a clutch as claimed in claim 2, wherein: arc-shaped buffer grooves (16) are formed in transition surfaces of the two cylinders and the valve core sections; the depth of the buffer groove (16) is 3 mm.
4. A proportional solenoid valve for controlling a clutch according to claim 1 or 3, characterized in that: and the outer circular surfaces of the valve core upper section (32), the valve core middle section (33) and the valve core lower section (34) are provided with a group of annular pressure reduction grooves (10).
5. A proportional solenoid valve for controlling a clutch as claimed in claim 4, wherein: the number of the annular pressure reduction grooves (10) in each group is three, and the distance between every two adjacent annular pressure reduction grooves (10) is larger than or equal to 1 mm.
6. A proportional solenoid valve for controlling a clutch as claimed in claim 5, wherein: the width of the first ring groove (22) is 14mm to 15mm, and the depth of the first ring groove is 3mm to 4 mm.
7. A proportional solenoid valve for controlling a clutch as claimed in claim 6, wherein: the diameter of the backflow hole (14) is 0.6-1 mm.
8. A proportional solenoid valve for controlling a clutch as claimed in claim 7, wherein: the included angle between the backflow channel (31) and the axis of the valve core support sleeve (5) is 45 degrees.
9. A proportional solenoid valve for controlling a clutch as claimed in claim 8, wherein: and a spring limiting seat (18) is arranged in the valve plate (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920813388.5U CN210566559U (en) | 2019-05-31 | 2019-05-31 | Proportional solenoid valve for controlling clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920813388.5U CN210566559U (en) | 2019-05-31 | 2019-05-31 | Proportional solenoid valve for controlling clutch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210566559U true CN210566559U (en) | 2020-05-19 |
Family
ID=70639150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920813388.5U Withdrawn - After Issue CN210566559U (en) | 2019-05-31 | 2019-05-31 | Proportional solenoid valve for controlling clutch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210566559U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110260025A (en) * | 2019-05-31 | 2019-09-20 | 陕西法士特齿轮有限责任公司 | It is a kind of for controlling the proportion magnetic valve of clutch |
-
2019
- 2019-05-31 CN CN201920813388.5U patent/CN210566559U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110260025A (en) * | 2019-05-31 | 2019-09-20 | 陕西法士特齿轮有限责任公司 | It is a kind of for controlling the proportion magnetic valve of clutch |
| CN110260025B (en) * | 2019-05-31 | 2024-02-06 | 陕西法士特齿轮有限责任公司 | Proportional electromagnetic valve for controlling clutch |
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