Oil way on-off control valve of automatic gearbox

Abstract

The invention relates to an automatic gearbox oil way on-off control valve which comprises a valve seat, a valve body, a steel seat and a driving assembly, the valve body is arranged on the valve seat, an electromagnetic coil is arranged on the valve seat, a valve element is connected to the valve seat in a sliding mode, a liquid inlet channel and a liquid outlet channel are formed in the valve body, the steel seat is arranged on the valve body and communicates with the liquid inlet channel and the liquid outlet channel, and the driving assembly is arranged on the valve body. A plurality of steel balls are movably connected into the steel base and can move to abut against the liquid outlet channel, the driving assembly is used for driving the steel balls to move, when any steel ball abuts against the liquid outlet channel, the steel ball separates the liquid inlet channel from the liquid outlet channel, and when the valve element slides towards one side of the valve body, the steel ball can move to the liquid outlet channel. The valve element pushes away the steel balls to enable the liquid inlet channel and the liquid outlet channel to be communicated, and when the valve element slides towards the side away from the valve body, the driving assembly drives the next steel ball to abut against the liquid outlet channel. And the possibility that the sealing performance between flow channels of the on-off control valve is influenced by excessive wear of a single steel ball is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of automatic transmission parts, in particular to an automatic transmission oil circuit on-off control valve. Background Art

[0002] The transmission used in automobiles is gradually replaced by automatic transmission, especially in mid-range and high-end cars, which are almost all equipped with automatic transmission. Automatic transmission is a car component that can automatically shift gears according to factors such as vehicle speed and accelerator pedal position. Modern automotive engine electronic control systems tend to choose solenoid valves as actuators.

[0003] The automatic transmission oil circuit on-off control valve is a vital component in the automatic transmission. The automatic transmission oil circuit on-off control valve is a device used to control the on-off of the hydraulic oil circuit in the automatic transmission. It realizes various functions of the automatic transmission by accurately controlling the flow path and pressure of the oil. According to the driving conditions of the vehicle, such as vehicle speed, throttle opening, etc., and the driver's operating intention, the oil circuits leading to different clutches and brakes are controlled to switch between different gears, ensuring that the vehicle can obtain the appropriate transmission ratio under various driving conditions. The automatic transmission oil circuit on-off control valve is generally composed of electromagnetic coils, valve cores, springs and other components. Take the common switch-type on-off control valve as an example.

[0004] The oil circuit on-off control valve in the prior art achieves the opening and closing effect of the on-off control valve by moving the valve needle and the oil pressure to move the steel ball. During the opening process of the on-off control valve, the steel ball will continue to rotate or hit the valve needle due to the movement of the fluid, and it is difficult to control the rotation and impact of the steel ball, which will cause wear on the valve needle and the steel ball, affecting the sealing performance between the flow channels of the on-off control valve, resulting in a short service life of the on-off control valve. Summary of the invention

[0005] In order to reduce the possibility of affecting the sealing performance between the flow channels of the on-off control valve, the present application provides an automatic transmission oil circuit on-off control valve.

[0006] The automatic transmission oil circuit on-off control valve provided in this application adopts the following technical solution: 1. The oil circuit on-off control valve of an automatic transmission, comprising a valve seat, a valve body, a steel seat and a driving assembly, wherein the valve body is arranged on the valve seat, an electromagnetic coil is arranged on the valve seat, a valve core is slidably connected to the valve seat, a valve spring is arranged on the valve core, the valve spring always drives the valve core to slide toward a side away from the valve body, a liquid inlet channel and a liquid outlet channel are respectively opened on the valve body, the steel seat is arranged on the valve body, and the steel seat connects the liquid inlet channel and the liquid outlet channel, a plurality of steel balls are movably connected in the steel seat, and the plurality of steel balls can be respectively moved to abut against the liquid outlet channel, the driving assembly is used to drive the movement of the plurality of steel balls, when any of the steel balls abuts against the liquid outlet channel, the steel ball blocks the liquid inlet channel and the liquid outlet channel, when the valve core slides toward one side of the valve body, the valve core pushes the steel ball away to connect the liquid inlet channel and the liquid outlet channel, and when the valve core slides toward a side away from the valve body, the driving assembly drives the next steel ball to abut against the liquid outlet channel.

[0007] By adopting the above technical scheme, when the electromagnetic coil is not energized, the valve spring drives the valve core to move toward the side away from the valve body, and the oil pressure in the valve body presses against any steel ball to block the liquid outlet channel, thereby isolating the liquid inlet channel and the liquid outlet channel, so that oil cannot flow from the liquid inlet channel into the liquid outlet channel; when the electromagnetic coil is energized, the magnetic field pushes the valve core to move toward one side of the valve body to push away the steel ball abutting on the liquid outlet channel, so that the liquid inlet channel and the liquid outlet channel are connected, causing the oil to flow out smoothly through the liquid inlet channel and the liquid outlet channel; by arranging multiple steel balls on the steel seat and driving the multiple steel balls to abut on the liquid outlet channel in an orderly manner through the driving assembly, the possibility of any steel ball being unable to block the liquid inlet channel due to excessive wear is reduced, thereby reducing the possibility of excessive wear of a single steel ball affecting the sealing performance between the flow channels of the on-off control valve.

[0008] Preferably, a transition channel and an annular channel are respectively provided on the steel seat, and a liquid inlet and a liquid outlet are respectively provided on the end surfaces at both ends in the axial direction of the transition channel, the liquid inlet is connected to the liquid inlet channel, the liquid outlet is connected to the liquid outlet channel, and the liquid inlet and the liquid outlet are coaxially arranged, the two ends of the annular channel are respectively located on the circumferential side walls of the transition channel, and the two ends of the annular channel are respectively located at the two ends in the length direction of the transition channel, and a number of the steel balls are respectively movably connected in the transition channel and the annular channel, and when the valve core slides toward the liquid inlet side, the valve core pushes the steel balls in the transition channel into the annular channel, and when the valve core slides toward the side away from the liquid inlet, the drive assembly drives the steel balls in the annular channel to move into the transition channel and abut against the liquid outlet.

[0009] By adopting the above technical solution, a plurality of steel balls are made to circulate in the transition channel and the annular channel, so that different steel balls abut against the liquid outlet in turn, thereby reducing the possibility of excessive wear of any steel ball, thereby reducing the possibility of affecting the sealing performance between the flow channels of the on-off control valve.

[0010] Preferably, a valve needle is provided on the valve core, and the valve needle is coaxially arranged with the transition channel. A liquid flow channel is provided on the valve needle, and a plurality of inlets and a plurality of outlets connected to the liquid flow channel are respectively opened at both ends in the length direction of the liquid flow channel. When the valve core slides to the extreme position toward the liquid inlet channel, one end of the inlet of the valve needle passes through the transition channel so that a plurality of the inlets are located in the liquid inlet channel, and a plurality of the outlets are located in the liquid outlet channel.

[0011] By adopting the above technical scheme, by allowing the valve needle to pass through the liquid inlet channel, the possibility of collision between the steel ball and the end of the valve needle is reduced, thereby further reducing the possibility of excessive wear of any steel ball, and by allowing the valve needle to pass through the liquid inlet channel, the steel ball abutting against the liquid outlet can be moved to one side, reducing the possibility that the same steel ball always abuts against the liquid outlet; and it is convenient to replace the entire steel seat; when the valve core slides toward one side of the liquid inlet channel until the inlet is located in the liquid inlet channel and the outlet is located in the liquid outlet channel, the oil in the liquid inlet channel can enter the liquid flow channel through the inlet and flow from the outlet to the liquid outlet channel to achieve oil circulation; and by allowing the oil to flow through the liquid flow channel, the possibility of the steel ball rolling or moving during the flow of the oil can be reduced, thereby reducing the possibility of friction between the steel ball and the needle valve.

[0012] Preferably, sealing plates are slidably connected to both ends of the annular channel, and the driving assembly is also used to drive the sliding of the sealing plate. When the valve core slides toward the side away from the liquid inlet channel, the driving assembly drives the sealing plate to a first position to separate the annular channel and the transition channel. When the valve core slides toward the side of the liquid inlet channel, the driving assembly drives the sealing plate to a second position to connect the annular channel and the transition channel.

[0013] By adopting the above technical solution, the sealing plate is driven to slide through the driving component. When the valve core slides toward the liquid inlet channel, the sealing plate moves to the transition channel and is connected to the annular channel. When the valve needle passes through the transition channel, the steel ball in the transition channel is pushed into the annular channel. When the valve core slides toward the side away from the liquid inlet channel, the two sealing plates separate the annular channel and the transition channel, and the movable range of the steel ball in the transition channel is limited, so that the steel ball in the transition channel can only be pushed to abut against the liquid outlet by oil pressure.

[0014] Preferably, the driving assembly includes a rotating wheel and a plurality of spacers, the rotating wheel is coaxial with the annular channel and is rotatably connected to the steel seat, the plurality of spacers are evenly arranged on the circumferential side walls of the rotating wheel around the central axis of the rotating wheel, and the plurality of spacers are respectively located in the annular channel, and when the steel ball enters the annular channel, the steel ball is located between two adjacent spacers.

[0015] By adopting the above technical solution, a plurality of steel balls are limited in position in the annular channel and spaced apart by setting a rotating wheel and a spacer; and by rotating the rotating wheel, the steel balls in the annular channel can enter the transition channel in sequence, and the possibility of multiple steel balls entering the transition channel at the same time under the action of oil pressure is reduced; at the same time, the possibility of two steel balls colliding with each other under the action of oil pressure and causing wear is reduced.

[0016] Preferably, the driving assembly also includes two sliding rods, one end of the two sliding rods is arranged on the valve core, the other ends of the two sliding rods are penetrated and slidably connected to the steel seat, the two sliding rods are respectively provided with a first rack, and a half gear is rotatably connected to the steel seat, and the two first racks can be respectively meshed with the half gears. When the valve core moves toward the side of the liquid inlet channel, one of the first racks is meshed with the half gear, and when the valve core moves toward the side away from the liquid inlet channel, the other first rack is meshed with the half gear. The half gear is coaxially and fixedly connected with a first gear, and the rotating wheel is coaxially and fixedly connected with a second gear. The first gear is meshed with the second gear, and when the first gear rotates one circle, the second gear rotates until a steel ball in the annular channel falls into the transition channel.

[0017] By adopting the above technical solution, when the valve core moves, the two sliding rods are driven to move together, and through the meshing connection between the two first racks and the half gear, the valve core moves back and forth once, causing the half gear and the first gear coaxial therewith to rotate one circle, and through the meshing connection between the first gear and the second gear, the second gear and the rotating wheel coaxial therewith rotate, causing the valve core to move back and forth once, and finally causing the rotating wheel to rotate a certain angle.

[0018] Preferably, the steel seat is slidably connected to a connecting rod, the two sealing plates are respectively fixedly connected to the connecting rod, a threaded rod is rotatably connected to the steel seat, the threaded rod is passed through and threadedly connected to the connecting rod, a third gear is coaxially and fixedly connected to the threaded rod, a second rack is provided on any of the sliding rods, and the second rack can be meshed and connected to the third gear.

[0019] By adopting the above technical solution, when the sliding rod moves, the third gear and the threaded rod coaxial with it rotate through the meshing connection between the second rack and the third gear, and the connecting rod moves along the axial direction of the threaded rod through the threaded connection between the threaded rod and the connecting rod, thereby causing the sealing plate fixedly connected to the connecting rod to move together.

[0020] Preferably, the valve needle is arranged in a tapered shape from an end close to the valve core to an end away from the valve core, and an arc groove is provided at the end of the valve needle away from the valve core.

[0021] By adopting the above technical solution, when the valve needle moves toward the liquid inlet channel, it guides the steel balls in the transition channel to ensure the movement direction of the multiple steel balls.

[0022] Preferably, the end face of the transition channel close to the liquid inlet gradually becomes closer to the valve core from the side close to the annular channel to the side far from the annular channel.

[0023] By adopting the above technical solution, when the valve needle moves toward the liquid inlet channel, the steel ball in the transition channel is guided to enter the annular channel, reducing the possibility of the steel ball getting stuck at the liquid inlet.

[0024] Preferably, the end surface of the transition channel close to the liquid outlet is arranged to be tapered from the end close to the liquid inlet to the end away from the liquid inlet.

[0025] By adopting the above technical solution, the steel balls in the transition channel are guided so that the steel balls in the transition channel can move to abut against the liquid outlet under oil pressure.

[0026] The technical effects of the present invention are mainly reflected in the following aspects: 1. The present invention provides a plurality of steel balls and a driving assembly. When the electromagnetic coil is not energized, the valve spring drives the valve core to move toward the side away from the valve body, and the oil pressure in the valve body presses against any steel ball to block the liquid outlet channel, thereby isolating the liquid inlet channel and the liquid outlet channel, so that the oil cannot flow from the liquid inlet channel into the liquid outlet channel; when the electromagnetic coil is energized, the magnetic field pushes the valve core to move toward one side of the valve body to push away the steel ball abutting against the liquid outlet channel, so that the liquid inlet channel and the liquid outlet channel are connected, so that the oil flows out of the liquid outlet channel smoothly through the liquid inlet channel; by arranging a plurality of steel balls on the steel seat and driving the plurality of steel balls to abut against the liquid outlet channel in an orderly manner through the driving assembly, the possibility of any steel ball being unable to block the liquid inlet channel due to excessive wear is reduced, thereby reducing the possibility of excessive wear of a single steel ball affecting the sealing performance between the flow channels of the on-off control valve; 2. The present invention arranges a steel seat to allow a plurality of steel balls to circulate in the transition channel and the annular channel, so that different steel balls abut against the liquid outlet in sequence, thereby reducing the possibility of excessive wear of any steel ball, thereby reducing the possibility of affecting the sealing performance between the flow channels of the on-off control valve; 3. The present invention sets a sealing plate, and drives the sealing plate to slide through a driving assembly. When the valve core slides toward the liquid inlet channel, the sealing plate moves to the transition channel and is connected with the annular channel. When the valve needle passes through the transition channel, the steel ball in the transition channel is pushed into the annular channel. When the valve core slides toward the side away from the liquid inlet channel, the annular channels at the bottom of the two sealing plates and the transition channel are separated, and the movable range of the steel balls in the transition channel is restricted, so that the steel balls in the transition channel can only be pushed to abut against the liquid outlet by oil pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0028] Figure 2 is along Figure 1 Enlarged view of point A in the middle.

[0029] Figure 3 It is a schematic diagram of the structure of the on-off control valve in the open state according to an embodiment of the present application.

[0030] Figure 4 is along Figure 3 Enlarged view of point B in the middle.

[0031] Figure 5 It is a schematic diagram of the valve body structure of an embodiment of the present application.

[0032] Figure 6 It is a schematic diagram of the steel seat structure of an embodiment of the present application.

[0033] Figure 7 It is a schematic diagram of the structure of the driving component of an embodiment of the present application.

[0034] Figure 8 It is a schematic diagram of the valve needle structure of an embodiment of the present application.

[0035] Explanation of the reference numerals: 1. valve seat; 11. electromagnetic coil; 12. valve core; 13. valve spring; 14. valve needle; 141. liquid flow channel; 142. inlet; 143. outlet; 144. arc groove; 2. valve body; 21. liquid inlet channel; 22. liquid outlet channel; 3. steel seat; 31. transition channel; 311. liquid outlet; 312. liquid inlet; 32. annular channel; 33. steel ball; 34. half gear; 35. first gear; 36. sealing plate; 37. connecting rod; 4. drive assembly; 41. rotating wheel; 42. spacer block; 43. sliding rod; 44. second gear; 45. first rack; 46. second rack; 47. third gear; 48. threaded rod. DETAILED DESCRIPTION

[0036] The following is combined with Figure 1-Figure 8 The present application is further described in detail to make the technical solution of the present application easier to understand and grasp.

[0037] The embodiment of the present application discloses an automatic transmission oil circuit on-off control valve.

[0038] Reference Figure 1 and Figure 3An automatic transmission oil circuit on-off control valve of the present embodiment includes a valve seat 1, a valve body 2, a steel seat 3 and a driving assembly 4, the valve body 2 is fixedly connected to the valve seat 1, an electromagnetic coil 11 is fixedly connected to the valve seat 1, a valve core 12 is slidably connected to the valve seat 1, a valve spring 13 is fixedly connected to the valve core 12, two gears of the valve spring 13 are respectively abutted against the valve core 12 and the valve seat 1, and the valve spring 13 always drives the valve core 12 to slide toward the side away from the valve body 2.

[0039] Reference Figure 2 and Figure 4 The valve body 2 is provided with a liquid inlet channel 21 and a liquid outlet channel 22, the steel seat 3 is fixedly connected to the valve body 2, the steel seat 3 is provided with a transition channel 31 and an annular channel 32, a plurality of steel balls 33 are movably connected in the transition channel 31 and the annular channel 32, and a liquid inlet 312 and a liquid outlet 311 are provided on the end surfaces of both ends of the transition channel 31 in the axial direction, the liquid inlet 312 is connected to the liquid inlet channel 21, the liquid outlet 311 is connected to the liquid outlet channel 22, and the liquid inlet 312 is coaxially arranged with the liquid outlet 311, and the two ends of the annular channel 32 are respectively located at On the circumferential side wall of the transition channel 31, and the two ends of the annular channel 32 are respectively located at the two ends of the length direction of the transition channel 31, and a plurality of steel balls 33 are respectively movably connected in the transition channel 31 and the annular channel 32. When the valve core 12 slides toward the side of the liquid inlet 312, the valve core 12 pushes the steel balls 33 in the transition channel 31 into the annular channel 32. When the valve core 12 slides toward the side away from the liquid inlet 312, the drive component 4 drives the steel balls 33 in the annular channel 32 to move into the transition channel 31 and abut against the liquid outlet 311.

[0040] Reference Figure 1 and Figure 3 When the electromagnetic coil 11 is not energized, the valve spring 13 drives the valve core 12 to move toward the side away from the valve body 2, and the oil pressure in the valve body 2 presses against any steel ball 33 to block the liquid outlet channel 22, thereby isolating the liquid inlet channel 21 and the liquid outlet channel 22, so that oil cannot flow from the liquid inlet channel 21 into the liquid outlet channel 22; when the electromagnetic coil 11 is energized, the magnetic field pushes the valve core 12 to move toward the side of the valve body 2 to push away the steel ball 33 abutting on the liquid outlet channel 22, so that the liquid inlet channel 21 and the liquid outlet channel 22 are connected, causing the oil to smoothly flow out of the liquid outlet channel 22 through the liquid inlet channel 21; by arranging multiple steel balls 33 on the steel seat 3, and driving the multiple steel balls 33 to abut on the liquid outlet channel 22 in an orderly manner through the driving component 4, the possibility of a single steel ball 33 being unable to block the liquid inlet channel 21 due to excessive wear is reduced, thereby reducing the possibility of a single steel ball 33 being excessively worn and affecting the sealing performance between the on-off control valve flow channels.

[0041] Reference Figure 2 and Figure 4, so that the plurality of steel balls 33 circulate in the transition channel 31 and the annular channel 32, so that different steel balls 33 abut against the liquid outlet 311 in turn, reducing the possibility of excessive wear of any steel ball 33, thereby reducing the possibility of affecting the sealing performance between the on-off control valve flow channels.

[0042] Reference Figure 2 and Figure 4 , the end face of the transition channel 31 close to the liquid inlet 312 gradually gets closer to the valve core 12 from the side close to the annular channel 32 to the side away from the annular channel 32. When the valve needle 14 moves toward the side of the liquid inlet channel 21, the steel ball 33 in the transition channel 31 is guided so that the steel ball 33 enters the annular channel 32, reducing the possibility of the steel ball 33 getting stuck at the liquid inlet 312. The end face of the transition channel 31 close to the liquid outlet 311 is gradually set from the end close to the liquid inlet 312 to the end away from the liquid inlet 312. The steel ball 33 in the transition channel 31 is guided so that the steel ball 33 in the transition channel 31 can move to abut against the liquid outlet 311 under oil pressure.

[0043] Reference Figure 4 and Figure 8 A valve needle 14 is fixedly connected to the valve core 12, and the valve needle 14 is coaxially arranged with the transition channel 31. A liquid flow channel 141 is provided on the valve needle 14, and a plurality of inlets 142 and a plurality of outlets 143 connected to the liquid flow channel 141 are respectively opened at both ends in the length direction of the liquid flow channel 141, and the plurality of outlets 143 and the plurality of inlets 142 are respectively evenly distributed around the axial direction of the valve needle 14. When the valve core 12 slides to the limit position toward the side of the liquid inlet channel 21, one end of the inlet 142 of the valve needle 14 passes through the transition channel 31 so that the plurality of inlets 142 are located in the liquid inlet channel 21, and the plurality of outlets 143 are located in the liquid outlet channel 22.

[0044] Reference Figure 4 and Figure 8 , by allowing the valve needle 14 to penetrate into the liquid inlet channel 21, the possibility of the steel ball 33 colliding with the end of the valve needle 14 is reduced, thereby further reducing the possibility of excessive wear of any steel ball 33, and by allowing the valve needle 14 to penetrate into the liquid inlet channel 21, the steel ball 33 abutting against the liquid outlet 311 can be moved to one side, reducing the possibility that the same steel ball 33 always abuts against the liquid outlet 311; and it is convenient to replace the entire steel seat 3; when the valve core 12 slides toward the side of the liquid inlet channel 21 until the inlet 142 is located in the liquid inlet channel 21 and the outlet 143 is located in the liquid outlet channel 22, the oil in the liquid inlet channel 21 can enter the liquid flow channel 141 through the inlet 142 and flow from the outlet 143 to the liquid outlet channel 22 to achieve oil circulation; and by allowing the oil to flow through the liquid flow channel 141, the possibility of the steel ball 33 rolling or moving during the oil flow process can be reduced, thereby reducing the possibility of friction between the steel ball 33 and the needle valve.

[0045] Reference Figure 4 and Figure 8 The valve needle 14 is arranged in a tapered shape from one end close to the valve core 12 to the end away from the valve core 12, and an arc groove 144 is arranged at the end of the valve needle 14 away from the valve core 12. When the valve needle 14 moves toward the liquid inlet channel 21, it guides the steel balls 33 in the transition channel 31 to ensure the moving directions of the multiple steel balls 33.

[0046] Reference Figure 2 , Figure 4 and Figure 6 The two ends of the annular channel 32 are respectively connected with sealing plates 36 in a sliding direction perpendicular to the sliding direction of the valve core 12. The driving component 4 is also used to drive the sliding of the sealing plate 36. When the valve core 12 slides toward the side away from the liquid inlet channel 21, the driving component 4 drives the sealing plate 36 to the first position to separate the annular channel 32 and the transition channel 31. When the valve core 12 slides toward the side of the liquid inlet channel 21, the driving component 4 drives the sealing plate 36 to the second position to connect the annular channel 32 and the transition channel 31. The sealing plate 36 is driven to slide by the driving component 4. When the valve core 12 slides toward the liquid inlet channel 21, the sealing plate 36 moves to the transition channel 31 and is connected to the annular channel 32. When the valve needle 14 passes through the transition channel 31, the steel ball in the transition channel 31 is pushed into the annular channel 32; when the valve core 12 slides toward the side away from the liquid inlet channel 21, the annular channel 32 and the transition channel 31 at the bottom of the two sealing plates 36 are separated, and the movable range of the steel ball 33 in the transition channel 31 is limited, so that the steel ball 33 in the transition channel 31 can only be pushed to abut against the liquid outlet 311 by oil pressure.

[0047] Reference Figure 2 , Figure 4 and Figure 7 The driving assembly 4 includes a rotating wheel 41 and a plurality of spacers 42. The rotating wheel 41 is coaxial with the annular channel 32 and is rotatably connected to the steel seat 3. The plurality of spacers 42 are evenly arranged on the circumferential side walls of the rotating wheel 41 around the central axis of the rotating wheel 41, and the plurality of spacers 42 are respectively located in the annular channel 32. When the steel ball 33 enters the annular channel 32, the steel ball 33 is located between two adjacent spacers 42. By setting the rotating wheel 41 and the spacers 42, the plurality of steel balls 33 in the annular channel 32 are limited and the plurality of steel balls 33 are spaced apart; and by rotating the rotating wheel 41, the steel balls 33 in the annular channel 32 can enter the transition channel 31 in sequence, and the possibility of multiple steel balls 33 entering the transition channel 31 at the same time under the action of oil pressure is reduced; and the possibility of two steel balls 33 colliding with each other under the action of oil pressure and causing wear is reduced.

[0048] Reference Figure 6 and Figure 7The driving assembly 4 also includes two sliding rods 43, one end of the two sliding rods 43 is fixedly connected to the valve core 12, and the other ends of the two sliding rods 43 are respectively penetrated and slidably connected to the steel seat 3. The two sliding rods 43 are respectively fixedly connected with first racks 45. The steel seat 3 is rotatably connected with a half gear 34 along the rotation direction of the rotating wheel 41. The two first racks 45 can be respectively meshed with the half gears 34. When the valve core 12 moves toward the side of the liquid inlet channel 21, one of the first racks 45 is meshed with the half gear 34. When the valve core 12 moves toward the side away from the liquid inlet channel 21, the other first rack 45 is meshed with the half gear 34. The half gear 34 is coaxially and fixedly connected with a first gear 35, and the rotating wheel 41 is coaxially and fixedly connected with a second gear 44. The first gear 35 is meshed with the second gear 44. When the first gear 35 rotates one circle, the second gear 44 rotates to a steel ball 33 in the annular channel 32 and falls into the transition channel 31.

[0049] Reference Figure 6 and Figure 7 That is, when the valve core 12 moves, the two sliding rods 43 are driven to move together, and through the meshing connection between the two first racks 45 and the half gear 34, the valve core 12 moves back and forth once, causing the half gear 34 and the first gear 35 coaxial therewith to rotate one circle, and through the meshing connection between the first gear 35 and the second gear 44, the second gear 44 and the rotating wheel 41 coaxial therewith rotate, causing the valve core 12 to move back and forth once, and finally causing the rotating wheel 41 to rotate a certain angle.

[0050] Reference Figure 6 and Figure 7 The steel seat 3 is slidably connected with a connecting rod 37 along the sliding direction of the sealing plate 36. The two sealing plates 36 are respectively fixedly connected to the connecting rod 37. The steel seat 3 is rotatably connected with a threaded rod 48 along the sliding direction of the sealing plate 36. The threaded rod 48 is passed through and threadedly connected to the connecting rod 37. The threaded rod 48 is coaxially and fixedly connected with a third gear 47. A second rack 46 is provided on any sliding rod 43. The second rack 46 can be meshed and connected with the third gear 47. When the sliding rod 43 moves, the third gear 47 and the threaded rod 48 coaxial therewith rotate through the meshing connection between the second rack 46 and the third gear 47, and the connecting rod 37 moves along the axial direction of the threaded rod 48 through the threaded connection between the threaded rod 48 and the connecting rod 37, so that the sealing plate 36 fixedly connected to the connecting rod 37 moves together.

[0051] Of course, the above are only typical examples of the present application. In addition, the present application may have many other specific implementation methods. All technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present application.

Claims

1. An automatic transmission oil circuit on-off control valve, characterized in that: The invention comprises a valve seat (1), a valve body (2), a steel seat (3) and a drive assembly (4); the valve body (2) is arranged on the valve seat (1); the valve seat (1) is provided with an electromagnetic coil (11); the valve seat (1) is slidably connected with a valve core (12); the valve core (12) is provided with a valve spring (13); the valve spring (13) always drives the valve core (12) to slide toward a side away from the valve body (2); the valve body (2) is respectively provided with a liquid inlet channel (21) and a liquid outlet channel (22); the steel seat (3) is arranged on the valve body (2), and the steel seat (3) is connected with the liquid inlet channel (21) and the liquid outlet channel (22); a plurality of steel springs (13) are movably connected in the steel seat (3); The steel balls (33) are movable to abut against the liquid outlet channel (22), and the driving assembly (4) is used to drive the movement of the steel balls (33). When any of the steel balls (33) abuts against the liquid outlet channel (22), the steel balls (33) separate the liquid inlet channel (21) and the liquid outlet channel (22). When the valve core (12) slides toward one side of the valve body (2), the valve core (12) pushes the steel balls (33) to connect the liquid inlet channel (21) and the liquid outlet channel (22). When the valve core (12) slides toward the side away from the valve body (2), the driving assembly (4) drives the next steel ball (33) to abut against the liquid outlet channel (22).

2. The automatic transmission oil circuit on-off control valve according to claim 1, characterized in that: The steel seat (3) is provided with a transition channel (31) and an annular channel (32), and the end surfaces of both ends of the transition channel (31) in the axial direction are provided with a liquid inlet (312) and a liquid outlet (311), the liquid inlet (312) is connected to the liquid inlet channel (21), the liquid outlet (311) is connected to the liquid outlet channel (22), and the liquid inlet (312) and the liquid outlet (311) are coaxially arranged, and the two ends of the annular channel (32) are respectively located on the circumferential side walls of the transition channel (31), and the two ends of the annular channel (32) are respectively located on the transition channel (31). At both ends of the length direction of the channel (31), a plurality of steel balls (33) are movably connected in the transition channel (31) and the annular channel (32), respectively. When the valve core (12) slides toward the liquid inlet (312), the valve core (12) pushes the steel balls (33) in the transition channel (31) into the annular channel (32). When the valve core (12) slides toward the side away from the liquid inlet (312), the drive assembly (4) drives the steel balls (33) in the annular channel (32) to move into the transition channel (31) and abut against the liquid outlet (311).

3. The automatic transmission oil circuit on-off control valve according to claim 2, characterized in that: The valve core (12) is provided with a valve needle (14), and the valve needle (14) is coaxially arranged with the transition channel (31). The valve needle (14) is provided with a liquid flow channel (141), and a plurality of inlets (142) and a plurality of outlets (143) connected to the liquid flow channel (141) are respectively provided at both ends in the length direction of the liquid flow channel (141). When the valve core (12) slides to the extreme position toward the liquid inlet channel (21), one end of the inlet (142) of the valve needle (14) passes through the transition channel (31) so that the plurality of inlets (142) are located in the liquid inlet channel (21), and the plurality of outlets (143) are located in the liquid outlet channel (22).

4. The automatic transmission oil circuit on-off control valve according to claim 3, characterized in that: The two ends of the annular channel (32) are respectively slidably connected with sealing plates (36), and the driving component (4) is also used to drive the sealing plate (36) to slide. When the valve core (12) slides toward a side away from the liquid inlet channel (21), the driving component (4) drives the sealing plate (36) to a first position to separate the annular channel (32) and the transition channel (31). When the valve core (12) slides toward a side of the liquid inlet channel (21), the driving component (4) drives the sealing plate (36) to a second position to connect the annular channel (32) and the transition channel (31).

5. The automatic transmission oil circuit on-off control valve according to claim 4, characterized in that: The driving assembly (4) comprises a rotating wheel (41) and a plurality of spacers (42); the rotating wheel (41) is coaxial with the annular channel (32) and is rotatably connected to the steel seat (3); the plurality of spacers (42) are evenly arranged on the circumferential side wall of the rotating wheel (41) around the central axis of the rotating wheel (41); and the plurality of spacers (42) are respectively located in the annular channel (32); when the steel ball (33) enters the annular channel (32), the steel ball (33) is located between two adjacent spacers (42).

6. The automatic transmission oil circuit on-off control valve according to claim 5, characterized in that: The driving assembly (4) further comprises two sliding rods (43), one end of each of the two sliding rods (43) being arranged on the valve core (12), and the other end of each of the two sliding rods (43) being passed through and slidably connected to the steel seat (3), and each of the two sliding rods (43) being provided with a first rack (45), and each of the steel seat (3) being rotatably connected to a half gear (34), and each of the two first racks (45) being respectively meshed with the half gear (34), and when the valve core (12) moves toward one side of the liquid inlet channel (21), one of the first racks (45) is meshed with the half gear (34). The first gear (34) is meshedly connected with the valve core (12), when the valve core (12) moves toward a side away from the liquid inlet channel (21), the other first rack (45) is meshedly connected with the half gear (34), the half gear (34) is coaxially and fixedly connected with a first gear (35), the rotating wheel (41) is coaxially and fixedly connected with a second gear (44), the first gear (35) is meshedly connected with the second gear (44), when the first gear (35) rotates one circle, the second gear (44) rotates until a steel ball (33) in the annular channel (32) falls into the transition channel (31).

7. The automatic transmission oil circuit on-off control valve according to claim 6, characterized in that: The steel seat (3) is slidably connected to a connecting rod (37), and the two sealing plates (36) are respectively fixedly connected to the connecting rod (37). A threaded rod (48) is rotatably connected to the steel seat (3), and the threaded rod (48) is passed through and threadedly connected to the connecting rod (37). A third gear (47) is coaxially and fixedly connected to the threaded rod (48). A second rack (46) is provided on any of the sliding rods (43), and the second rack (46) can be meshed and connected with the third gear (47).

8. The automatic transmission oil circuit on-off control valve according to claim 3, characterized in that: The valve needle (14) is arranged in a tapered shape from one end close to the valve core (12) to one end away from the valve core (12), and an arc groove (144) is provided at one end of the valve needle (14) away from the valve core (12).

9. The automatic transmission oil circuit on-off control valve according to claim 3, characterized in that: The end surface of the transition channel (31) close to the liquid inlet (312) gradually becomes closer to the valve core (12) from the side close to the annular channel (32) to the side away from the annular channel (32).

10. The automatic transmission oil circuit on-off control valve according to claim 3, characterized in that: The end surface of the transition channel (31) close to the liquid outlet (311) is arranged in a tapered shape from the end close to the liquid inlet (312) to the end away from the liquid inlet (312).

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