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CN-224228979-U - Pressure control structure and device

CN224228979UCN 224228979 UCN224228979 UCN 224228979UCN-224228979-U

Abstract

The application discloses a pressure control structure and a device. The pressure control structure comprises a valve body, an oil inlet and an oil outlet, wherein the valve body is internally provided with an accommodating cavity, the oil inlet and the oil outlet are communicated with the accommodating cavity and are distributed at intervals along a first direction, an adjusting valve core and a feedback valve core are movably arranged in the accommodating cavity and are connected through an elastic structure, the accommodating cavity is divided into a first oil cavity, a second oil cavity, a third oil cavity and a fourth oil cavity along the first direction by the adjusting valve core and the feedback valve core, the valve body is internally provided with a feedback oil way communicated with the first oil cavity and the fourth oil cavity, the oil inlet is arranged in the first oil cavity, the oil outlet is arranged in the second oil cavity, and oil input from the oil inlet moves towards a direction far away from the first oil cavity by pushing the adjusting valve core in the first direction, so that the second oil cavity is communicated with the first oil cavity, and the feedback valve core is controlled to move towards a direction close to the first oil cavity by on-off of the feedback oil way. Through the technical characteristics, the multistage flexible control of the oil pressure can be realized.

Inventors

  • DING YI
  • CUI YU
  • Liang Zhekai
  • GAO ZHEN
  • Lv Linqing
  • LI SONGSHAN
  • ZHAO HAIKUN
  • Bian Xianzu
  • ZHAN YUAN
  • HOU TIANZHU

Assignees

  • 中国船舶集团有限公司第七一一研究所
  • 上海齐耀智驱传动技术有限公司

Dates

Publication Date
20260512
Application Date
20250521

Claims (12)

  1. 1. A pressure control structure, characterized in that the pressure control structure comprises: The valve body (10) is internally provided with a containing cavity (11), the valve body (10) is also provided with an oil inlet (12) and an oil outlet (13) which are communicated with the containing cavity (11), and the oil inlet (12) and the oil outlet (13) are arranged at intervals along a first direction; The adjusting valve core (20) is movably arranged in the accommodating cavity (11), and the accommodating cavity (11) is divided into a first oil cavity (14), a second oil cavity (15) and a third oil cavity (16) which are arranged at intervals along the first direction by the adjusting valve core (20); The feedback valve core (30) is movably arranged in the accommodating cavity (11), the feedback valve core (30) is positioned at one side of the adjusting valve core (20) in the first direction, the feedback valve core (30) is separated into a fourth oil cavity (17) along the first direction, and the feedback valve core (30) and the adjusting valve core (20) are connected through an elastic structure (40); The valve body (10) is internally provided with a feedback oil path (18) which is communicated with the first oil cavity (14) and the fourth oil cavity (17), the oil inlet (12) is arranged in the first oil cavity (14), and the oil outlet (13) is arranged in the second oil cavity (15); In the first direction, oil input from the oil inlet (12) moves away from the first oil cavity (14) by pushing the regulating valve core (20), so that the second oil cavity (15) is communicated with the first oil cavity (14).
  2. 2. The pressure control structure of claim 1, wherein said pressure control structure further comprises: And a conduction element (50) provided to the feedback oil passage (18), the conduction element (50) being configured to selectively conduct the feedback oil passage (18) such that oil in the first oil chamber (14) and the fourth oil chamber (17) has a first oil pressure when the conduction element (50) conducts the feedback oil passage (18), and such that oil output from the first oil chamber (14) has a second oil pressure when the conduction element (50) blocks the feedback oil passage (18), the first oil pressure being greater than the second oil pressure.
  3. 3. The pressure control structure of claim 1, wherein said pressure control structure comprises a pressure sensor, The regulating valve core (20) includes: valve core body (21) The first bulge (22) is arranged on the outer peripheral wall of the valve core main body (21) in a protruding mode, and the first bulge (22) is connected with the inner wall of the accommodating cavity (11) to serve as separation between the second oil cavity (15) and the third oil cavity (16) in the accommodating cavity (11).
  4. 4. The pressure control structure of claim 1, wherein said pressure control structure comprises a pressure sensor, The regulating valve core (20) includes: valve core body (21) The valve core comprises a valve core main body (21), a groove structure (23) and a second oil cavity (15), wherein the groove structure (23) is arranged on the peripheral wall of the valve core main body (21), and the second oil cavity (15) is communicated with the first oil cavity (14) through the groove structure (23) along the first direction and towards the second oil cavity (15).
  5. 5. The pressure control structure of claim 4, wherein said pressure control structure comprises a pressure sensor, The regulating valve core (20) further comprises: a second protrusion (24) protruding from the outer peripheral wall of the valve core main body (21), wherein the second protrusion (24) is positioned at one side of the groove structure (23) close to the second oil cavity (15); The valve body (10) is further provided with a partition part (19) between the oil inlet (12) and the oil outlet (13), the second protrusion (24) is in contact with the partition part (19) to block the second oil cavity (15) and the first oil cavity (14) when oil is not input into the oil inlet (12), and the second oil cavity (15) is communicated with the first oil cavity (14) through the groove structure (23) when oil is input into the oil inlet (12).
  6. 6. The pressure control structure of claim 4, wherein said pressure control structure comprises a pressure sensor, The regulating valve core (20) further comprises: A third protrusion (25) protruding from the outer peripheral wall of the valve core main body (21), wherein the third protrusion (25) is positioned at one side of the groove structure (23) away from the second oil cavity (15); The third protrusion (25) is provided with a through hole (26), and the groove structure (23) is communicated with a cavity on one side, away from the groove structure (23), of the third protrusion (25) through the through hole (26).
  7. 7. Pressure control structure according to claim 1, characterized in that the elastic structure (40) is a spring structure (41).
  8. 8. Pressure control structure according to claim 1, characterized in that the elastic structure (40) comprises a spring structure (41) and an adjusting member (42), The feedback valve core (30), the spring structure (41) and the adjusting valve core (20) are located in the accommodating cavity (11) and are sequentially distributed along the first direction.
  9. 9. Pressure control structure according to claim 8, characterized in that the adjustment member (42) is located between the spring structure (41) and the feedback spool (30) for adjusting the deformation force of the elastic structure (40) in cooperation with the spring structure (41).
  10. 10. The pressure control structure according to claim 1, further comprising an end cap (60) mated with the valve body (10), the end cap (60) being provided to cover the valve body (10) to close the fourth oil chamber (17).
  11. 11. The pressure control structure according to claim 10, characterized in that the fourth oil chamber (17) is provided with an oil outlet hole (61), the oil outlet hole (61) being for outputting oil having the first oil pressure from the fourth oil chamber (17).
  12. 12. An apparatus configured to include the pressure control structure of any one of claims 1-11.

Description

Pressure control structure and device Technical Field The application relates to the technical field of mechanical control, in particular to a pressure control structure and a device. Background In application scenes such as ships, vehicles, mechanical engineering and the like, the working mode of the adjusting device can be realized by adjusting the oil pressure of input oil. For example, in a vehicle, the engagement of a clutch, the shift, the engagement of a brake, and the like may be controlled by inputting high-pressure oil. In the related art, a complicated control valve group device is generally adopted to realize the adjustment of oil pressure. The weight of the control valve assembly is large due to the complex arrangement and excessive oil usage, and the control logic for implementing pressure regulation becomes complex. Disclosure of utility model In view of the above-mentioned drawbacks of the prior art, the present application is to simplify the pressure control structure and improve the flexibility of oil pressure adjustment. In order to solve at least one technical problem set forth above, the application discloses a pressure control structure and a device. According to an aspect of the present application, there is provided a pressure control structure including: The valve body is internally provided with a containing cavity, and is also provided with an oil inlet and an oil outlet which are communicated with the containing cavity, and the oil inlet and the oil outlet are arranged at intervals along a first direction; the adjusting valve core is movably arranged in the accommodating cavity and divides the accommodating cavity into a first oil cavity, a second oil cavity and a third oil cavity which are arranged at intervals along the first direction; the feedback valve core is movably arranged in the accommodating cavity, is positioned at one side of the adjusting valve core in the first direction, and is connected with the adjusting valve core through an elastic structure; The valve body is internally provided with a feedback oil way which is communicated with the first oil cavity and the fourth oil cavity, the oil inlet is arranged in the first oil cavity, and the oil outlet is arranged in the second oil cavity; In the first direction, oil input from the oil inlet moves towards a direction away from the first oil cavity by pushing the adjusting valve core, so that the second oil cavity is communicated with the first oil cavity. Optionally, the pressure control structure further comprises: The conduction element is arranged in the feedback oil path and is configured to selectively conduct the feedback oil path so that oil in the first oil cavity and the fourth oil cavity has a first oil pressure when the conduction element conducts the feedback oil path, and oil output from the first oil cavity has a second oil pressure when the conduction element blocks the feedback oil path, and the first oil pressure is larger than the second oil pressure. Optionally, the adjusting valve core includes: valve core main body, and The first bulge is arranged on the outer peripheral wall of the valve core main body in a protruding mode, and the first bulge is connected with the inner wall of the accommodating cavity to be used as a separation between the second oil cavity and the third oil cavity in the accommodating cavity. Optionally, the adjusting valve core includes: valve core main body, and The second oil cavity is communicated with the first oil cavity through the groove structure along with the movement of the valve core body along the first direction and towards the second oil cavity. Optionally, the regulating valve core further includes: The second bulge is protruded on the peripheral wall of the valve core main body, and the second bulge is positioned on one side of the groove structure close to the second oil cavity; The valve body is further provided with a separation part positioned between the oil inlet and the oil outlet, the second protrusion is in contact with the separation part to block the second oil cavity and the first oil cavity when oil is not input into the oil inlet, and the second oil cavity is communicated with the first oil cavity through a groove structure when oil is input into the oil inlet. Optionally, the regulating valve core further includes: The third bulge is protruded on the peripheral wall of the valve core main body and is positioned on one side of the groove structure far away from the second oil cavity; Wherein, the third arch is provided with the through-hole, and groove structure is kept away from the cavity intercommunication of groove structure one side through-hole and third arch. Optionally, the elastic structure is a spring structure. Optionally, the elastic structure comprises a spring structure and an adjusting piece, and the feedback valve core, the spring structure and the adjusting valve core are located in the accommodating cavity and are sequentially