CN219388686U - Automatic transmission control device for bidirectional flow control - Google Patents
Automatic transmission control device for bidirectional flow control Download PDFInfo
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- CN219388686U CN219388686U CN202223333194.6U CN202223333194U CN219388686U CN 219388686 U CN219388686 U CN 219388686U CN 202223333194 U CN202223333194 U CN 202223333194U CN 219388686 U CN219388686 U CN 219388686U
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- oil outlet
- outlet port
- valve core
- working shoulder
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Abstract
The utility model discloses an automatic transmission control device for bidirectional flow control, which comprises an electromagnetic head, a valve seat, a valve core, a precompression spring and also comprises: the valve core comprises a first working shoulder, a second working shoulder and a notch, wherein the notch is positioned between the first working shoulder and the second working shoulder, a first jet angle is arranged between the first working shoulder and the notch, and a second jet angle is arranged between the second working shoulder and the notch; and when the valve core moves axially in the valve seat, the first working shoulder and the second working shoulder of the valve core respectively control the fluid flow from the oil inlet port to the first oil outlet port and/or the second oil outlet port. The utility model can reduce the hydraulic force of fluid passing through the oil outlet, obviously reduce the axial running resistance of the valve core, improve the net output force of the electromagnetic head, further improve the output efficiency of the electromagnetic head, obviously reduce the power consumption of the electromagnetic head, obtain higher output efficiency, and reduce the volume of the electromagnetic head, so that the device has better power density.
Description
Technical Field
The utility model relates to the technical field of automatic gearboxes, in particular to an automatic transmission control device for controlling bidirectional flow.
Background
In the prior art, the flow control valve of an automatic transmission controlled by electromagnetic force is used, force balance control is carried out through electromagnetic force output of an electromagnetic head and a precompression spring at the tail end of a valve core, so that the moving position of the valve core in a valve seat is controlled, fluid in an oil inlet port has high pressure and large flow, when a valve core working shoulder and an oil outlet port have smaller axial opening areas, huge steady-state hydrodynamic force exists at the valve core working shoulder, the hydrodynamic force leads the valve core to have a moving trend towards the direction of closing the oil outlet port, the force balance state existing between the electromagnetic force and the spring force is seriously disturbed, the inaccuracy and the instability of the valve core on the fluid flow control are caused, the axial running resistance of the valve core is greatly increased, the net output force of the electromagnetic head pushing the valve core is controlled to be reduced, the driving force of the electromagnetic head in a device is required to be increased to compensate the hydrodynamic force, the length and the diameter of the electromagnetic head are required to be increased, the packaging volume and the cost of the electromagnetic head are increased, the margin of the installation space is reduced, the electromagnetic head has serious power consumption and low driving power density is reduced.
Disclosure of Invention
The utility model provides an automatic transmission control device for bidirectional flow control, which can reduce the hydraulic force of fluid passing through an oil outlet, obviously reduce the axial running resistance of a valve core, improve the net output force of an electromagnetic head, further improve the output efficiency of the electromagnetic head, obviously reduce the power consumption of the electromagnetic head, obtain higher output efficiency, and reduce the volume of the electromagnetic head, so that the device has better power density.
The technical scheme for solving the technical problems is as follows:
the utility model provides a two-way flow control's automatic transmission controlling means, includes electromagnetic head, disk seat, case, precompression spring, the electromagnetic head is located the outer end of disk seat, precompression spring arranges in the inside of disk seat, case one end and electromagnetic head cooperation, the other end and precompression spring cooperation, and the case can axially movable arrange in the disk seat, still includes:
the valve core comprises a first working shoulder, a second working shoulder and a notch, wherein the notch is positioned between the first working shoulder and the second working shoulder, a first jet angle is arranged between the first working shoulder and the notch, and a second jet angle is arranged between the second working shoulder and the notch;
and when the valve core moves axially in the valve seat, the first working shoulder and the second working shoulder of the valve core respectively control the fluid flow from the oil inlet port to the first oil outlet port and/or the second oil outlet port.
Further, one end of the valve seat is further provided with a third oil outlet port, the other end of the valve seat is further provided with a fourth oil outlet port, the third oil outlet port is communicated with the first oil outlet port, and the fourth oil outlet port is communicated with the second oil outlet port.
Further, a first dirt receiving structure is arranged on the peripheral surface of the first working shoulder, and a second dirt receiving structure is arranged on the peripheral surface of the second working shoulder.
Further, the first jet angle and the second jet angle are equal in angle and are symmetrically arranged in axis.
According to the automatic transmission control device for bidirectional flow control, first, the first jet angle and the second jet angle are respectively arranged on the first working shoulder and the second working shoulder of the valve core, when the valve core moves axially in the valve seat under the action of liquid flow pressure, liquid flow flows back under the action of the first jet angle, the first working shoulder, the second jet angle and the first working shoulder of the valve core, axial steady-state hydraulic force is obviously reduced, so that the axial movement of the valve core is more stable, the net output force of the electromagnetic head is increased, higher output efficiency is obtained, the operation power consumption and the heat generated by the electromagnetic head are reduced, and the electromagnetic head with smaller volume can be used, so that the volume of the whole device is reduced.
Drawings
FIG. 1 is a cross-sectional view of a structure of an automatic transmission control apparatus for bi-directional flow control according to the present utility model;
FIG. 2 is a schematic diagram of the left end of operation of the automatic transmission control apparatus of the present utility model with bi-directional flow control;
FIG. 3 is a schematic diagram of the right end of the operation of the automatic transmission control device for bi-directional flow control according to the present utility model.
The reference symbols in the drawings:
the electromagnetic valve comprises an electromagnetic head 11, a valve seat 12, a valve core 13, a first working ledge 13-1, a second working ledge 13-2, a notch 13-3, a precompression spring 14, a first jet angle 30, a second jet angle 31, a first oil outlet port 20, an oil inlet port 21, a second oil outlet port 22, a third oil outlet port 41, a fourth oil outlet port 42, a first dirt receiving structure 43 and a second dirt receiving structure 44.
Detailed Description
The utility model is further described with reference to the drawings and detailed description.
As shown in fig. 1, an automatic transmission control device for bidirectional flow control, comprising an electromagnetic head 11, a valve seat 12, a valve core 13, a precompression spring 14, wherein the electromagnetic head 11 is positioned at the outer end of the valve seat 12, the precompression spring 14 is arranged inside the valve seat 12, one end of the valve core 13 is matched with the electromagnetic head 11, the other end is matched with the precompression spring 14, and the valve core 13 is axially movably arranged in the valve seat 12, and the automatic transmission control device further comprises:
the valve core 13 comprises a first working shoulder 13-1, a second working shoulder 13-2 and a notch 13-3, wherein the notch 13-3 is positioned between the first working shoulder 13-1 and the second working shoulder 13-2, a first jet angle 30 is arranged between the first working shoulder 13-1 and the notch 13-3, and a second jet angle 31 is arranged between the second working shoulder 13-2 and the notch 13-3;
the peripheral surface of the valve seat 12 is provided with an oil inlet port 21, a first oil outlet port 20 and a second oil outlet port 22, and when the valve core 13 moves axially along the valve seat 12, the first working ledge 13-1 and the second working ledge 13-2 of the valve core 13 respectively control the fluid flow from the oil inlet port 21 to the first oil outlet port 20 and/or the second oil outlet port 22.
In this embodiment, the oil inlet port 21 is a system input end, the first oil outlet port 20 is a left controlled object input end, the second oil outlet port 22 is a right controlled object input end, as shown in fig. 1 and 2, the system oil enters the valve core 13 through the oil inlet port 21, at this time, the electromagnetic head 11 outputs low electromagnetic force to keep balance with the precompression spring 14 on the right end of the valve core 13, the valve core 13 is kept at the left end position, the first working shoulder 13-1 of the valve core 13 and the first oil outlet port 20 are kept open, the oil input by the system enters the valve core 13 through the oil inlet port 21, and then flows out through the first oil outlet port 20 to control the left controlled object; in this process, the second working land 13-2 at the right end of the spool and the second oil outlet port 22 are kept in a closed state, so that the oil is prevented from flowing out of the second oil outlet port 22, and the right controlled object is controlled by mistake.
In this embodiment, when the electromagnetic force output by the electromagnetic head 11 begins to gradually increase, the valve core 13 gradually compresses the right precompression spring 14, the valve core 13 moves axially to the right, the opening between the first working land 13-1 of the valve core 13 and the first oil outlet port 20 also gradually decreases, at this time, the flow rate of the oil input by the system is unchanged, as the opening is smaller and smaller, the pressure in the cavity formed by the notch 13-3 of the valve core 13 and the inner wall of the valve seat 12 is larger and larger, the steady-state hydraulic force at the first working land 13-1 of the valve core 13 increases, but, because the first jet angle 30 is arranged between the first working land 13-1 and the notch 13-3, the hydraulic force is compensated, and thus the value of the increase of the axial force is negligible, there is no disturbance to the force balance state existing between the electromagnetic force at the left end of the valve core 13 and the right precompression spring 14, and there is accurate and stable control on the flow rate of the fluid entering the controlled object from the oil inlet port 21 to the first oil outlet port 20 to the left end through the valve core 13.
As shown in fig. 3, when the electromagnetic force output from the electromagnetic head 11 continues to increase, against the spring force of the right-end precompression spring 14, the valve spool 13 continues to move toward the right end until the end of the valve spool 13 abuts against the inner wall of the right end of the valve seat 12; in this process, the opening where the first working land 13-1 and the first oil outlet port 20 of the valve core 13 remain open gradually decreases until the valve core 13 is completely closed, the second working land 13-2 and the second oil outlet port 22 of the valve core 13 gradually change from the closed state to the open state, the steady-state hydrodynamic force at the left end of the valve core 13 decreases to 0 due to the change of the first working land 13-1 at the left end of the valve core 13 from the open state to the closed state, the steady-state hydrodynamic force at the right end of the valve core 13 begins to increase from 0, the hydrodynamic force is compensated due to the second jet angle 31 provided between the second working land 13-2 and the notch 13-3, and further, the axial force increase value is negligible, there is no disturbance to the force balance state existing between the electromagnetic force at the left end of the valve core 13 and the spring force at the right end, and the valve core 13 still has precise and stable control over the fluid flow control from the oil inlet port 21 to the second oil outlet port 22 to the controlled object at the right end through the valve core 13.
As shown in fig. 2, one end of the valve seat 12 is further provided with a third oil outlet port 41, the other end is further provided with a fourth oil outlet port 42, the third oil outlet port 41 is communicated with the first oil outlet port 20, and the fourth oil outlet port 42 is communicated with the second oil outlet port 22.
In this embodiment, since the valve core 13 is axially movable in the valve seat 12, the valve core 13 is in clearance fit with the valve seat 12, when oil enters the valve core 13 from the oil inlet port 21 and flows out from the first oil outlet port 20, a small part of the oil flows from the clearance between the first working land 13-1 of the valve core 13 and the inner wall of the valve seat 12 to the left end of the valve seat 12 and flows out from the third oil outlet port 41, so that the oil is prevented from closing and accumulating at the left end of the valve seat 12 to generate hydraulic pressure on the left side surface of the valve core 13, and an unexpected error occurs in the movement stress balance of the valve core 13, and when the oil enters the valve core 13 from the oil inlet port 21 and flows out from the second oil outlet port 22, a small part of the oil flows from the clearance between the second working land 13-2 of the valve core 13 and the inner wall of the valve seat 12 to the right end of the valve seat 12 and flows out from the fourth oil outlet port 42, so that the oil is prevented from closing and accumulating at the right end of the valve seat 12 to generate hydraulic pressure on the right side surface of the valve core 13, and the unexpected error occurs in the movement stress balance of the valve core 13 is prevented, and in this embodiment, the third oil outlet port 41 and the fourth oil outlet port 42 are all the oil outlet ports are the oil outlet ports and control the oil outlet device.
As shown in fig. 2, a first dirt receiving structure 43 is disposed on the peripheral surface of the first working shoulder 13-1, and a second dirt receiving structure 44 is disposed on the peripheral surface of the second working shoulder 13-2.
In this embodiment, since part of the oil flows from the gap between the valve core 13 and the valve seat 12 to the third oil outlet port 41 and the fourth oil outlet port 42, some impurities tend to remain, so that the first dirt receiving structure 43 is disposed on the peripheral surface of the first working land 13-1, the second dirt receiving structure 44 is disposed on the peripheral surface of the second working land 13-2, the first dirt receiving structure 43 and the second dirt receiving structure 44 are all three axially continuous small square groove structures, and when the oil flows from the gap between the valve core 13 and the valve seat 12 to the third oil outlet port 41 and the fourth oil outlet port 42, the impurities are precipitated in the first dirt receiving structure 43 and the second dirt receiving structure 44 of the small square groove structures.
Finally, it should be explained that: the above embodiments are merely illustrative of the preferred embodiments of the present utility model, and not limiting the scope of the present utility model; although the utility model has been described in detail with reference to the foregoing embodiments, it will be appreciated by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions.
Claims (4)
1. The utility model provides an automatic transmission controlling means of two-way flow control, includes electromagnetic head (11), disk seat (12), case (13), precompression spring (14), electromagnetic head (11) are located the outer end of disk seat (12), precompression spring (14) are arranged in the inside of disk seat (12), case (13) one end and electromagnetic head (11) cooperation, the other end and precompression spring (14) cooperation, and case (13) movably arranges in disk seat (12), its characterized in that still includes:
the valve core (13) comprises a first working shoulder (13-1), a second working shoulder (13-2) and a notch (13-3), wherein the notch (13-3) is positioned between the first working shoulder (13-1) and the second working shoulder (13-2), a first jet angle (30) is arranged between the first working shoulder (13-1) and the notch (13-3), and a second jet angle (31) is arranged between the second working shoulder (13-2) and the notch (13-3);
an oil inlet port (21), a first oil outlet port (20) and a second oil outlet port (22) are formed in the peripheral surface of the valve seat (12), and when the valve core (13) axially moves along the valve seat (12), a first working shoulder (13-1) and a second working shoulder (13-2) of the valve core (13) respectively control the fluid flow from the oil inlet port (21) to the first oil outlet port (20) and/or the second oil outlet port (22).
2. The automatic transmission control device for bidirectional flow control according to claim 1, wherein one end of the valve seat (12) is further provided with a third oil outlet port (41), the other end is further provided with a fourth oil outlet port (42), the third oil outlet port (41) is communicated with the first oil outlet port (20), and the fourth oil outlet port (42) is communicated with the second oil outlet port (22).
3. The automatic transmission control device for bidirectional flow control according to claim 1, wherein a first dirt receiving structure (43) is provided on the peripheral surface of the first working shoulder (13-1), and a second dirt receiving structure (44) is provided on the peripheral surface of the second working shoulder (13-2).
4. The automatic transmission control device of bidirectional flow control according to claim 1, wherein the first jet angle (30) and the second jet angle (31) are equal in angular magnitude and are arranged axisymmetrically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223333194.6U CN219388686U (en) | 2022-12-13 | 2022-12-13 | Automatic transmission control device for bidirectional flow control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223333194.6U CN219388686U (en) | 2022-12-13 | 2022-12-13 | Automatic transmission control device for bidirectional flow control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219388686U true CN219388686U (en) | 2023-07-21 |
Family
ID=87199566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223333194.6U Active CN219388686U (en) | 2022-12-13 | 2022-12-13 | Automatic transmission control device for bidirectional flow control |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219388686U (en) |
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2022
- 2022-12-13 CN CN202223333194.6U patent/CN219388686U/en active Active
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