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CN-224200804-U - Gear pump

CN224200804UCN 224200804 UCN224200804 UCN 224200804UCN-224200804-U

Abstract

The utility model discloses a gear pump, which comprises a shell, an end cover assembly and a power device. The casing defines a liquid inlet and a liquid outlet which are respectively communicated with the inside of the casing, the casing is provided with a sealing end, the sealing end is provided with a first connecting part and a limiting part, the end cover assembly comprises a locking piece and an end cover, the locking piece is provided with a second connecting part, the first connecting part and the second connecting part are detachably connected, the end cover is positioned between the locking piece and the limiting part and is in sealing connection with the sealing end, the power device is arranged in the casing, and the power device is used for enabling a medium entering the inside of the casing through the liquid inlet to be output from the liquid outlet. The end cover of the gear pump can be conveniently detached.

Inventors

  • WU CHUMAO
  • XU XIANJUN

Assignees

  • 深圳市科威麟技术有限公司

Dates

Publication Date
20260505
Application Date
20250526

Claims (10)

  1. 1. A gear pump, comprising: a shell defining a liquid inlet and a liquid outlet, the liquid inlet and the liquid outlet being respectively communicated with the interior of the shell, the shell is provided with a sealing end, and the sealing end is provided with a first connecting part and a limiting part; The end cover assembly comprises a locking piece and an end cover, the locking piece is provided with a second connecting part, the first connecting part and the second connecting part are detachably connected, and the end cover is positioned between the locking piece and the limiting part and is in sealing connection with the sealing end; The power device is arranged in the shell and is used for enabling media entering the shell through the liquid inlet to be output from the liquid outlet.
  2. 2. The gear pump of claim 1, wherein the first connection is a first thread and the second connection is a second thread, the first thread and the second thread being threadably connected.
  3. 3. The gear pump of claim 2, wherein the first thread is disposed circumferentially inward of the sealed end and the second thread is disposed circumferentially outward of the locking member; The limiting part is arranged on the inner circumferential side of the sealing end, and the end cover is accommodated on the inner circumferential side of the sealing end.
  4. 4. The gear pump of claim 2, wherein the locking member is annular.
  5. 5. The gear pump of claim 4, wherein a circumferential inner side of the locking member defines a groove for assisting in rotating the locking member.
  6. 6. The gear pump of claim 1, wherein the end cap assembly further comprises a seal ring coupled to the end cap, the seal ring for sealingly coupling the end cap and the seal end.
  7. 7. The gear pump of claim 6, wherein the circumferentially outer side of the end cap defines a groove extending circumferentially of the end cap, the sealing ring is sleeved on the end cap and received in the groove, and the sealing ring seals a gap between the end cap and the sealing end.
  8. 8. The gear pump of claim 1, wherein the end cap comprises an end cap body and a resilient abutment, the resilient abutment and the end cap body being connected; The elastic abutting part is arranged on one side of the end cover facing the limiting part, and the elastic abutting part abuts against the limiting part; and/or the elastic abutting part is arranged on the other side of the end cover body facing the locking piece, and the elastic abutting part abuts against the locking piece.
  9. 9. The gear pump of claim 8, wherein the resilient abutment is disposed along a circumferential extension of the end cap body.
  10. 10. The gear pump of claim 1, wherein the power plant comprises a pump body, a motor assembly, and a gear assembly, the pump body, the motor assembly, and the gear assembly each housed within the interior of the housing; The pump body is provided with a first opening and a second opening, the first opening and the second opening are respectively communicated with the interior of the pump body, the first opening is communicated with the liquid inlet, and the second opening is communicated with the liquid outlet; The motor assembly is accommodated in the pump body and comprises a stator and a rotor, the stator is fixedly connected to the pump body, and the rotor penetrates through the stator and is rotationally connected to the pump body; The gear assembly comprises an inner gear and an outer gear, the inner gear is meshed with the outer gear, the inner gear is connected with the rotor, a gear cavity is defined between the inner gear and the outer gear, and the gear cavity is communicated with the second opening and the liquid outlet.

Description

Gear pump Technical Field The utility model relates to the technical field of liquid pumps, in particular to a gear pump. Background The gear pump is used as a common positive displacement pump, has the advantages of simple structure, large bearing pressure and the like, has more stable and more efficient working performance in the range of small flow and high lift, and is more suitable to be used as a medium circulation power source for working scenes such as data centers, energy storage battery refrigeration and the like. Because the sealing requirements of the gear pump system are very strict, the gear pump housing is fully enclosed. Specifically, the end cover of the gear pump is sealed at the sealing end of the axial direction of the casing of the gear pump in a welding mode, so that the sealing requirement of the gear pump is met, the internal medium of the casing is prevented from being leaked, but when the gear pump is maintained and disassembled, the end cover is required to be disassembled, and the end cover is welded on the casing to cause disassembly difficulty, so that products are easy to discard in the disassembly process. Disclosure of utility model The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides the gear pump, and the end cover of the gear pump can be conveniently detached. The embodiment of the utility model provides a gear pump, which comprises: The shell is provided with a sealing end, and the sealing end is provided with a first connecting part and a limiting part; The end cover assembly comprises a locking piece and an end cover, the locking piece is provided with a second connecting part, the first connecting part and the second connecting part are detachably connected, and the end cover is positioned between the locking piece and the limiting part and is in sealing connection with the sealing end; and the power device is arranged in the shell and is used for outputting a medium entering the shell through the liquid inlet from the liquid outlet. The gear pump provided by the embodiment of the utility model has at least the following beneficial effects: Through set up first connecting portion on the sealed end of casing to make the second connecting portion of first connecting portion and retaining member dismantle the connection, can allow the retaining member to dismantle from the casing, and, set up spacing portion on the sealed end, and make the end cover be located between retaining member and the spacing portion, that is to say, retaining member and spacing portion are from the opposite sides of end cover respectively, restrict the axial displacement of end cover along the casing relatively, thereby make the end cover be fixed in on the casing. When the gear pump needs to be disassembled, the locking piece is disassembled from the shell, the end cover is taken out, the gear pump can be prevented from being directly scrapped in the disassembling process, the gear end cover is convenient to disassemble, the gear pump is convenient to overhaul, and the gear pump is simple in structure, and low in production cost and maintenance cost. According to some embodiments of the gear pump of the present utility model, the first connecting portion is a first thread, the second connecting portion is a second thread, and the first thread and the second thread are threaded. According to some embodiments of the gear pump of the present utility model, the first thread is disposed circumferentially inward of the sealing end, and the second thread is disposed circumferentially outward of the locking member; The limit part is arranged at the inner circumferential side of the sealing end, and the end cover is accommodated at the inner circumferential side of the sealing end. According to some embodiments of the utility model, the gear pump, the locking member is annular. According to some embodiments of the gear pump of the present utility model, the circumferential inner side of the locking member defines a groove for assisting in rotating the locking member. According to some embodiments of the utility model, the gear pump, the end cap assembly further comprises a seal ring coupled to the end cap, the seal ring adapted to sealingly couple the end cap and the seal head. According to the gear pump of some embodiments of the utility model, the circumferential outer side of the end cover defines a groove, the groove extends along the circumferential direction of the end cover, the sealing ring is sleeved on the end cover and is accommodated in the groove, and the sealing ring seals a gap between the end cover and the sealing end. According to some embodiments of the utility model, the gear pump comprises an end cover body and an elastic abutting part, wherein the elastic abutting part is connected with the end cover body; The elastic abutting part is arranged on one side of the end cover facing the limiting p