Search

CN-224200802-U - Filling member, gear pump, motor pump, suspension assembly and vehicle

CN224200802UCN 224200802 UCN224200802 UCN 224200802UCN-224200802-U

Abstract

The utility model relates to the technical field of gear pumps, and discloses a filling member, a gear pump, a motor pump, a suspension assembly and a vehicle, wherein the filling member is used for being filled between a gear ring and a gear internally meshed with the gear ring and is provided with a radial outer side surface which is suitable for being abutted against the gear ring; the radial inner side surface is suitable for being abutted against the gear, the first end surface and the second end surface are respectively positioned at two circumferential ends of the filling piece, the radial outer side surface is provided with a first groove, one end of the first groove penetrates through the first end surface, the other end of the first groove is arranged at intervals with the second end surface, and/or the radial inner side surface is provided with a second groove, one end of the second groove penetrates through the first end surface, and the other end of the second groove is arranged at intervals with the second end surface. The packing piece is suitable for the internal gear pump, is convenient for adjusting the pressure born by the packing piece, and is beneficial to reducing the abrasion of the packing piece in the gear pump.

Inventors

  • SUN XUN
  • LI JIANWEN
  • Li Buzhao
  • ZHANG YANKAI
  • QIU HUILIN

Assignees

  • 比亚迪股份有限公司

Dates

Publication Date
20260505
Application Date
20250427

Claims (15)

  1. 1. A packing for packing between a ring gear and a gear internally engaged with the ring gear, the packing comprising: a radially outer side adapted to abut the ring gear; a radially inner side adapted to abut the gear; The first end face and the second end face are respectively positioned at two circumferential ends of the filling piece; The radial outer side surface is provided with a first groove, one end of the first groove penetrates through the first end surface, the other end of the first groove is arranged at intervals with the second end surface, and/or, The radial inner side is provided with a second groove, one end of the second groove penetrates through the first end face, and the other end of the second groove is arranged at intervals with the second end face.
  2. 2. The filling member according to claim 1, wherein the first groove is provided adjacent to the first end face, at least part of the first groove gradually decreasing in cross section in a direction in which the first end face is directed toward the second end face; And/or the second groove is arranged adjacent to the first end face, and the cross section of at least part of the second groove is gradually reduced in the direction that the first end face points to the second end face.
  3. 3. The filling member according to claim 1, wherein the filling member comprises a first crescent plate, an elastic member and a second crescent plate which are arranged in sequence in a radial direction, a part of the first end face is located at a first circumferential end of the first crescent plate, another part of the first end face is located at a first circumferential end of the second crescent plate, a part of the second end face is located at a second circumferential end of the first crescent plate, another part of the second end face is located at a second circumferential end of the second crescent plate, the radially outer side face is provided on the first crescent plate, the radially inner side face is provided on the second crescent plate, and both ends of the elastic member are respectively abutted against the first crescent plate and the second crescent plate.
  4. 4. A packing according to claim 3, wherein the packing divides the chamber between the ring gear and the gear into a high pressure chamber and a low pressure chamber, a first gap being provided between the first crescent and the second crescent, the first gap being adapted to communicate with the high pressure chamber, the first gap being adapted to be spaced from the low pressure chamber.
  5. 5. The filling member according to claim 4, wherein a first seal member and a first elastic member are provided in the first gap, the first elastic member causing the first seal member to abut against the first lunar plate and the second lunar plate, respectively, to seal the first gap from the low pressure chamber.
  6. 6. The packing of claim 5, wherein the first gap comprises a first mounting space, the first seal and the first spring are disposed in the first mounting space, a first mounting groove is disposed on the first crescent plate, the first mounting groove and the second crescent plate enclose the first mounting space, or A second mounting groove is arranged on the second crescent plate, the second mounting groove and the first crescent plate enclose the first mounting space, or The first lunar dental plate is provided with a first mounting groove, the second lunar dental plate is provided with a second mounting groove, and the first mounting groove and the second mounting groove are enclosed to form a first mounting space.
  7. 7. The filler member of claim 6, wherein said first gap further includes a first slit having one end communicating with said first installation space and the other end adapted to communicate with said high pressure chamber; The first crescent plate is provided with a first sealing surface, the second crescent plate is provided with a second sealing surface, the first sealing surface and the second sealing surface are respectively configured into part of the cavity wall of the first installation space, the first sealing element is abutted to the first sealing surface, and the first sealing element is abutted to the second sealing surface.
  8. 8. The packing element of any one of claims 1-7, wherein the radially outer side surface is further provided with a third groove, one end of the third groove extending through the second end surface, the other end of the third groove being spaced from the first end surface and the other end of the third groove being spaced from the first groove, and/or, The radial inner side surface is also provided with a fourth groove, one end of the fourth groove penetrates through the second end surface, one end of the fourth groove is arranged at intervals with the first end surface, and the other end of the fourth groove is arranged at intervals with the second groove.
  9. 9. A gear pump comprising a ring gear, a gear internally meshed with the ring gear, and the packing member according to any one of claims 1 to 8, the packing member being packed between the ring gear and the gear, the radially outer side abutting the ring gear, and the radially inner side abutting the gear.
  10. 10. The gear pump of claim 9, further comprising a pump housing, wherein the ring gear, the gear, and the filler are disposed in the pump housing, wherein a positioning pin is disposed on the pump housing, and wherein a positioning groove is disposed on the filler, and wherein the positioning pin is embedded in the positioning groove to limit the filler in a circumferential direction.
  11. 11. The gear pump of claim 9, further comprising a port plate, wherein the end face of the ring gear, the end face of the packing member, and the end face of the gear all abut the port plate.
  12. 12. The gear pump of claim 11, wherein the cavity defined by the port plate, the ring gear, the gear, and the filler member together comprises a high pressure cavity and a low pressure cavity; The filling piece comprises a first crescent plate and a second crescent plate which are arranged in the radial direction, a first gap is formed between the first crescent plate and the second crescent plate, and the first gap is communicated with the high-pressure cavity and is arranged at intervals with the low-pressure cavity; And a third diversion trench is arranged on one side of the valve plate, which faces the filling piece, and the third diversion trench is communicated with the high-pressure cavity and the first gap.
  13. 13. A motor pump comprising the gear pump of any one of claims 7-12 and a motor in driving connection with the gear.
  14. 14. A suspension assembly comprising a gear pump according to any one of claims 7 to 12 and/or a motor pump according to claim 13.
  15. 15. A vehicle comprising a gear pump according to any one of claims 7 to 12, and/or an electric motor pump according to claim 13, and/or a suspension assembly according to claim 14.

Description

Filling member, gear pump, motor pump, suspension assembly and vehicle Technical Field The utility model relates to the technical field of gear pumps, in particular to a filling piece, a gear pump, a motor pump, a suspension assembly and a vehicle. Background The internal gear pump generally includes a gear, a ring gear, and a packing member disposed between the gear and the ring gear, the packing member dividing a chamber between the gear and the ring gear into a high pressure chamber and a low pressure chamber to ensure that fluid within the internal gear pump flows in a predetermined direction. When the internal gear pump works, the filling piece can be subjected to the pressure of high-pressure cavity liquid and rub with the gear or the gear ring to generate abrasion. Disclosure of utility model The utility model aims to solve the technical problems existing in the prior art. To this end, an object of the present utility model is to propose a packing element interposed between the gear and the ring gear, which facilitates the adjustment of the pressure to which it is subjected, which facilitates the reduction of its wear in the gear pump. The utility model provides a filling member which is used for being filled between a gear ring and a gear internally meshed with the gear ring, and comprises a radial outer side face, a radial inner side face, a first end face and a second end face, wherein the radial outer side face is suitable for being abutted against the gear ring, the first end face and the second end face are respectively positioned at two circumferential ends of the filling member, the radial outer side face is provided with a first groove, one end of the first groove penetrates through the first end face, the other end of the first groove is arranged at intervals with the second end face, and/or the radial inner side face is provided with a second groove, one end of the second groove penetrates through the first end face, and the other end of the second groove is arranged at intervals with the second end face. According to the packing element, the first groove is formed in the radial outer side face and/or the second groove is formed in the radial inner side face, the first end face of the packing element can be arranged to face the high-pressure cavity, the second end face of the packing element can be arranged to face the low-pressure cavity, one end of the first groove and/or one end of the second groove penetrate through the first end face, the high-pressure cavity and the first groove and/or the second groove can be communicated, meanwhile, the other end of the first groove and/or the second groove is/are arranged at intervals with the second end face, the first groove and/or the second groove is/are not communicated with the low-pressure cavity, the pressure of high-pressure fluid in the first groove and/or the second groove acting on the packing element can be balanced or adjusted, the packing element is subjected to the pressure of the high-pressure fluid from the high-pressure cavity to press the gear ring gear or the gear, and abrasion of the packing element in the gear pump can be reduced. In some embodiments of the application, the first groove is disposed adjacent the first end face and at least a portion of the first groove tapers in cross-section in a direction in which the first end face is directed toward the second end face, and/or the second groove is disposed adjacent the first end face and at least a portion of the second groove tapers in cross-section in a direction in which the first end face is directed toward the second end face. In some embodiments of the present application, the filling member includes a first crescent plate, an elastic member, and a second crescent plate sequentially arranged in a radial direction, a portion of the first end surface is located at a first circumferential end of the first crescent plate, another portion of the first end surface is located at a first circumferential end of the second crescent plate, a portion of the second end surface is located at a second circumferential end of the first crescent plate, another portion of the second end surface is located at a second circumferential end of the second crescent plate, a radially outer side surface is disposed on the first crescent plate, a radially inner side surface is disposed on the second crescent plate, and two ends of the elastic member are respectively abutted to the first crescent plate and the second crescent plate. In some embodiments of the present application, the filling member divides the cavity between the ring gear and the gear into a high pressure cavity and a low pressure cavity, and a first gap is provided between the first lunar plate and the second lunar plate, the first gap being adapted to communicate with the high pressure cavity, the first gap being adapted to be spaced from the low pressure cavity. In some embodiments of the present application, a first sealing