An automatic transmission oil circuit on-off control valve

Abstract

The present application relates to an automatic transmission oil circuit on-off control valve, comprising a valve seat, a valve body, a steel seat, and a drive assembly. The valve body is disposed on the valve seat, an electromagnetic coil is disposed on the valve seat, a valve core is slidably connected to the valve seat, a liquid inlet channel and a liquid outlet channel are respectively provided on the valve body, a steel seat is disposed 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 moved to abut against the liquid outlet channel, a drive assembly is used to drive the movement of the plurality of steel balls, when any steel ball abuts against the liquid outlet channel, the steel ball separates 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, when the valve core slides toward the side away from the valve body, the drive assembly drives the next steel ball to abut against the liquid outlet channel. This reduces the possibility that excessive wear of a single steel ball will affect the sealing performance between the flow channels of the on-off control valve.

Description

Technical Field

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

[0002] Automatic transmissions are gradually replacing manual transmissions in automobiles, especially in mid-range and high-end vehicles, which are almost universally adopted. Automatic transmissions are automotive components that automatically shift gears based on factors such as vehicle speed and accelerator pedal position. Modern automotive engine electronic control systems are increasingly using solenoid valves as actuators.

[0003] The automatic transmission oil circuit on-off control valve is a crucial component in automatic transmissions. It controls the flow of hydraulic oil within the automatic transmission, precisely controlling the oil flow path and pressure to enable various automatic transmission functions. Based on vehicle driving conditions, such as speed and throttle position, as well as the driver's operating intent, it controls the flow of oil to various clutches and brakes, enabling the transmission to shift between gears and ensuring the appropriate transmission ratio under various driving conditions. An automatic transmission oil circuit on-off control valve typically consists of a solenoid coil, a valve core, a spring, and other components. Take the common 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 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, so that the service life of the on-off control valve is short. 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 present application provides an automatic transmission oil circuit on-off control valve adopting the following technical solution:

[0007] When the spool is in the valve body, the spool is in the valve body and the valve core is in the valve body, and the spool has a first position, and a second position, and a second position, and a third position, respectively, of the spool and the valve body; and when the spool is in the valve body, the spool is in the valve body and the valve core is in the valve body, the spool is in the valve body, the spool is in the valve body, the spool is in the valve body, the spool has a second position, and the second position, respectively, of the spool and the valve core is in the valve body.

[0008] By adopting the above technical solution, 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 to the liquid outlet channel; when the electromagnetic coil is energized, the magnetic field pushes the valve core to move toward the 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 drive 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.

[0009] 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 faces 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 movably connected in the transition channel and the annular channel, respectively. When the valve core slides toward the side of the liquid inlet, the valve core pushes the steel balls in the transition channel into the annular channel. 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.

[0010] By adopting the above technical solution, a number of steel balls are circulated in the transition channel and the annular channel, so that different steel balls abut against the liquid outlet in turn, 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.

[0011] 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 the plurality of inlets are located in the liquid inlet channel, and the plurality of outlets are located in the liquid outlet channel.

[0012] By adopting the above technical solution, the valve needle is passed through the liquid inlet channel, thereby reducing the possibility of collision between the steel ball and the end of the valve needle, thereby further reducing the possibility of excessive wear of any steel ball, and passing the valve needle through the liquid inlet channel can make the steel ball abutting on the liquid outlet move to one side, reducing the possibility of the same steel ball always abutting on the liquid outlet; and it is convenient to replace the entire steel seat; when the valve core slides toward the 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 realize oil circulation; and making the oil flow through the liquid flow channel can reduce the possibility of the steel ball rolling or moving during the oil flow, thereby reducing the possibility of friction between the steel ball and the needle valve.

[0013] 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 the 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 the second position to connect the annular channel and the transition channel.

[0014] By adopting the above technical solution, the sealing plate is driven to slide by the driving assembly. 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 range of movement of the steel ball in the transition channel is restricted, so that the steel ball in the transition channel can only be pushed to abut against the liquid outlet by the oil pressure.

[0015] Preferably, the driving assembly includes a runner and several spacers, the runner is coaxial with the annular channel and is rotatably connected to the steel seat, the several spacers are evenly arranged on the circumferential side walls of the runner around the central axis of the runner, and the several spacers are respectively located in the annular channel. When the steel ball enters the annular channel, the steel ball is located between two adjacent spacers.

[0016] 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 the steel balls located in the annular channel are allowed to enter the transition channel in sequence by rotating the rotating wheel, and the possibility of multiple steel balls entering the transition channel at the same time under the action of oil pressure is reduced; and 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.

[0017] Preferably, the drive assembly also includes two sliding rods, one end of the two sliding rods is arranged on the valve core, and the other end of the two sliding rods is passed through and slidably connected to the steel seat, and the two sliding rods are respectively provided with a first rack, and the steel seat is rotatably connected to a half gear, 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 the first gear, and the runner is coaxially and fixedly connected with the second gear. The first gear is meshed with the second gear, and when the first gear rotates one circle, the second gear rotates to a steel ball in the annular channel and falls into the transition channel.

[0018] By adopting the above technical solution, when the valve core moves, it drives the two sliding rods 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 with it to rotate one circle, and through the meshing connection between the first gear and the second gear, the second gear and the runner coaxial with it rotate, causing the valve core to move back and forth once, and finally causing the runner to rotate a certain angle.

[0019] 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 with the third gear.

[0020] By adopting the above technical solution, when the sliding rod moves, the meshing connection between the second rack and the third gear causes the third gear and the threaded rod coaxial with it to rotate, and the threaded connection between the threaded rod and the connecting rod causes the connecting rod to move along the axial direction of the threaded rod, thereby causing the sealing plate fixedly connected to the connecting rod to move together.

[0021] 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-shaped groove is provided at the end of the valve needle away from the valve core.

[0022] 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.

[0023] Preferably, the end face of the transition channel close to the liquid inlet is gradually closer to the valve core from the side close to the annular channel to the side away from the annular channel.

[0024] 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.

[0025] Preferably, the end surface of the transition channel close to the liquid outlet is arranged in a tapered shape from the end close to the liquid inlet to the end away from the liquid inlet.

[0026] 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.

[0027] The technical effects of the present invention are mainly reflected in the following aspects:

[0028] 1. The present invention is provided with multiple steel balls and a drive 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. 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, preventing oil from flowing from the liquid inlet channel into the liquid outlet channel. When the electromagnetic coil is energized, the magnetic field pushes the valve core toward the side of the valve body to push away the steel ball abutting the liquid outlet channel, connecting the liquid inlet channel and the liquid outlet channel, so that the oil flows smoothly through the liquid inlet channel and out of the liquid outlet channel. By arranging multiple steel balls on the steel seat and driving the multiple steel balls to abut the liquid outlet channel in an orderly manner through the drive assembly, the possibility of any one 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.

[0029] 2. The present invention provides a steel seat to allow a plurality of steel balls to circulate within 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;

[0030] 3. The present invention provides 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 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 annular channels and the transition channel at the bottom of the two sealing plates are separated, and the range of movement 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

[0031] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0032] Figure 2 It is along Figure 1 Enlarged view of point A in the middle.

[0033] Figure 3 It is a structural schematic diagram of the on-off control valve in the open state in an embodiment of the present application.

[0034] Figure 4 It is along Figure 3 Enlarged view of point B in the middle.

[0035] Figure 5 It is a schematic diagram of the valve body structure of an embodiment of the present application.

[0036] Figure 6 It is a schematic diagram of the steel seat structure of an embodiment of the present application.

[0037] Figure 7 It is a schematic diagram of the drive component structure of an embodiment of the present application.

[0038] Figure 8 It is a schematic diagram of the valve needle structure of an embodiment of the present application.

[0039] Explanation of the accompanying drawings: 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. Rotor; 42. Spacer; 43. Sliding rod; 44. Second gear; 45. First rack; 46. Second rack; 47. Third gear; 48. Threaded rod. DETAILED DESCRIPTION

[0040] The following is combined with Figures 1-8 The present application is further described in detail to make the technical solution of the present application easier to understand and grasp.

[0041] An embodiment of the present application discloses an automatic transmission oil circuit on-off control valve.

[0042] Reference Figure 1 and Figure 3 , an automatic transmission oil circuit on-off control valve of this embodiment includes a valve seat 1, a valve body 2, a steel seat 3 and a drive assembly 4, the valve body 2 is fixedly connected to the valve seat 1, the valve seat 1 is fixedly connected to an electromagnetic coil 11, the valve seat 1 is slidably connected to a valve core 12, the valve core 12 is fixedly connected to a valve spring 13, the two gears of the valve spring 13 respectively abut 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.

[0043] Reference Figure 2 and Figure 4 , the valve body 2 is respectively 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 respectively provided with a transition channel 31 and an annular channel 32, the transition channel 31 and the annular channel 32 are movably connected with a number of steel balls 33, and the end surfaces of the transition channel 31 at both ends in the axial direction are respectively 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 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 number of steel balls 33 are 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 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.

[0044] Reference Figure 1 and Figure 3When 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. 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 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 pass through the liquid inlet channel 21 and out of the liquid outlet channel 22; 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 drive assembly 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 excessive wear of a single steel ball 33 affecting the sealing performance between the flow channels of the on-off control valve.

[0045] Reference Figure 2 and Figure 4 , so that several 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.

[0046] Reference Figure 2 and Figure 4 The end face of the transition channel 31 is close to the liquid inlet 312, and its distance from the valve core 12 gradually becomes closer 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 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 is close to the liquid outlet 311, and its end close to the liquid inlet 312 is gradually narrowed from the end away from the liquid inlet 312. The steel ball 33 in the transition channel 31 is guided so that it can move to abut against the liquid outlet 311 under oil pressure.

[0047] 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 longitudinal 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.

[0048] Reference Figure 4 and Figure 8 The cam 33 is pressed against the outer wall of the valve seat 32 and the outer wall of the valve seat 33 is pressed against the inner wall of the valve seat 32. When the cam 33 is pressed against the outer wall of the valve seat 32, the oil in the cam 33 is prevented from colliding with the outer wall of the valve seat 32.

[0049] Reference Figure 4 and Figure 8 The valve needle 14 is tapered from the end closest to the valve core 12 to the end away from the valve core 12, and an arcuate groove 144 is provided on the end 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 movement direction of the multiple steel balls 33.

[0050] 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 assembly 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 range of movement of the steel ball 33 in the transition channel 31 is restricted, 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.

[0051] Reference Figure 2 、 Figure 4 and Figure 7 The drive assembly 4 includes a runner 41 and a plurality of spacers 42. The runner 41 is coaxial with the annular channel 32 and is rotatably connected to the steel base 3. The plurality of spacers 42 are evenly arranged on the circumferential sidewalls of the runner 41 around the central axis of the runner 41. The plurality of spacers 42 are located within the annular channel 32. When the steel balls 33 enter the annular channel 32, they are located between two adjacent spacers 42. The runner 41 and the spacers 42 are provided to limit the position of the plurality of steel balls 33 within the annular channel 32 and to space the plurality of steel balls 33 apart. The rotation of the runner 41 allows the steel balls 33 within the annular channel 32 to enter the transition channel 31 in sequence, thereby reducing the possibility of multiple steel balls 33 entering the transition channel 31 simultaneously under the action of oil pressure. The possibility of two steel balls 33 colliding with each other under the action of oil pressure and causing wear is also reduced.

[0052] Reference Figure 6 and Figure 7 The 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, and the two sliding rods 43 are respectively fixedly connected to the first rack 45, and the steel seat 3 is rotatably connected with a half gear 34 along the rotation direction of the runner 41. The two first racks 45 can be respectively meshed with the half gear 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 the first gear 35, and the runner 41 is coaxially and fixedly connected with the 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.

[0053] 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 runner 41 coaxial therewith rotate, causing the valve core 12 to move back and forth once, and finally causing the runner 41 to rotate a certain angle.

[0054] Reference Figure 6 and Figure 7The steel seat 3 is connected to a connecting rod 37 for sliding along the sliding direction of the sealing plate 36. The two sealing plates 36 are fixedly connected to the connecting rod 37. A threaded rod 48 is rotatably connected to the steel seat 3 along the sliding direction of the sealing plate 36. The threaded rod 48 passes through and is 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 sliding rod 43, and the second rack 46 can be meshed with the third gear 47. When the sliding rod 43 moves, the meshing connection between the second rack 46 and the third gear 47 causes the third gear 47 and the threaded rod 48 coaxial therewith to rotate. The threaded connection between the threaded rod 48 and the connecting rod 37 causes the connecting rod 37 to move along the axis of the threaded rod 48, thereby moving the sealing plate 36 fixedly connected to the connecting rod 37.

[0055] Of course, the above are only typical examples of the present application. In addition, the present application may have many other specific implementation methods. Any 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 by: The invention comprises a valve seat (1), a valve body (2), a steel seat (3) and a drive assembly (4), wherein the valve body (2) is arranged on the valve seat (1), an electromagnetic coil (11) is arranged on the valve seat (1), a valve core (12) is slidably connected to the valve seat (1), a valve spring (13) is arranged on the valve core (12), and the valve spring (13) always drives the valve core (12) to slide toward the 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 to the liquid inlet channel (21) and the liquid outlet channel (22), and a plurality of steel springs are movably connected in the steel seat (3). Ball (33), a plurality of said steel balls (33) can be respectively moved to abut against the liquid outlet channel (22), and the driving assembly (4) is used to drive the movement of the plurality of steel balls (33), when any of said steel balls (33) abuts against the liquid outlet channel (22), the steel ball (33) isolates the liquid inlet channel (21) and the liquid outlet channel (22), when the valve core (12) slides toward the side of the valve body (2), the valve core (12) pushes away the steel ball (33) to connect the liquid inlet channel (21) and the liquid outlet channel (22), and 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); The steel seat (3) is provided with a transition channel (31) and an annular channel (32), and the end surfaces of the transition channel (31) in the axial direction are provided with a liquid inlet (312) and a liquid outlet (311), respectively. The liquid inlet (312) is connected to the liquid inlet channel (21), and 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. 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 channel (31) in the longitudinal direction, 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 driving 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). The driving assembly (4) includes a rotating wheel (41) and a plurality of spacers (42), wherein the rotating wheel (41) is coaxial with the annular channel (32) and is rotatably connected to the steel seat (3), and 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), and when the steel ball (33) enters the annular channel (32), the steel ball (33) is located between two adjacent spacers (42); 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 a first rack (45) being respectively provided on each of the two sliding rods (43), and a half gear (34) being rotatably connected to the steel seat (3), and the two first racks (45) being respectively engaged 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) and the half gear (34) are engaged with each other. The first rack (45) is meshed with the half gear (34), and 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 the first gear (35), and the rotating wheel (41) is coaxially and fixedly connected with the second gear (44), the first gear (35) is meshed with the second gear (44), and 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).

2. The automatic transmission oil circuit on-off control valve according to claim 1, 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 longitudinal 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).

3. The automatic transmission oil circuit on-off control valve according to claim 2, characterized in that: The two ends of the annular channel (32) are respectively slidably connected to sealing plates (36), and the driving assembly (4) is also used to drive the sliding of the sealing plates (36). When the valve core (12) slides toward a side away from the liquid inlet channel (21), the driving assembly (4) drives the sealing plates (36) to a first position to isolate 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 assembly (4) drives the sealing plates (36) to a second position to connect the annular channel (32) and the transition channel (31).

4. The automatic transmission oil circuit on-off control valve according to claim 3, 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 with the third gear (47).

5. The automatic transmission oil circuit on-off control valve according to claim 2, 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 the end of the valve needle (14) away from the valve core (12).

6. The automatic transmission oil circuit on-off control valve according to claim 2, characterized in that: The transition channel (31) has an end face close to the liquid inlet (312), and its distance from the valve core (12) gradually becomes closer from the side close to the annular channel (32) to the side away from the annular channel (32).

7. The automatic transmission oil circuit on-off control valve according to claim 2, characterized in that: The transition channel (31) is located at an end surface close to the liquid outlet (311), and is arranged in a tapered shape from an end close to the liquid inlet (312) to an end away from the liquid inlet (312).

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