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CN-224214356-U - Anti-loosening gear structure of gear pump

CN224214356UCN 224214356 UCN224214356 UCN 224214356UCN-224214356-U

Abstract

The utility model relates to the technical field of gear pumps, and discloses a locking gear structure of a gear pump, which adopts a gear synchronization auxiliary type working structure, wherein two groups of mutually meshed synchronous gears are arranged at the rear parts of rotating shafts of two groups of pumping gears, the rotation synchronization of the two groups of pumping gears is realized through the meshing transmission of the two groups of synchronous gears, the two groups of pumping gears are synchronously and stably meshed, the working impact caused by the start and stop of a pump body is avoided, the service life of the pumping gears in the pump body can be effectively prolonged, the working stability of the pump body is greatly improved, the supporting end seat is utilized for carrying out working support on the rotating shaft structure of the pumping gears, the two end sides of the pumping gears are provided with jogged ring seats, during working, the pumping gears are jogged and supported and installed through jogged ring grooves at the inner sides of the jogged ring seats, and the rotating support of the supporting end seats is matched through jogged guiding of the ring seats, so that the rotating working stability of the synchronous gears is effectively improved, and the working looseness caused by offset rotation is avoided.

Inventors

  • Lian Wenquan

Assignees

  • 东莞市科昌液压科技有限公司

Dates

Publication Date
20260508
Application Date
20250606

Claims (6)

  1. 1. The anti-loosening gear structure of the gear pump comprises a driving rotating shaft (1), a driven rotating shaft (2), a pumping gear (3), a supporting end seat (4) and a synchronous gear (5), and is characterized in that the driving rotating shaft (1) and the driven rotating shaft (2) are supported by the supporting end seat (4) to be in parallel distribution and are rotatably arranged in a cavity seat of a pump body, and two groups of mutually meshed synchronous gears (5) are respectively arranged at the rear parts of the driving rotating shaft (1) and the driven rotating shaft (2); Two groups of mutually meshed pumping gears (3) are respectively arranged in the middle parts of a driving rotating shaft (1) and a driven rotating shaft (2), two end sides of the two groups of pumping gears (3) are respectively provided with an embedded ring seat (6), and the pumping gears (3) are rotationally embedded and arranged between the two groups of supporting end seats (4) through the embedded ring seats (6); The inner side of the supporting end seat (4) is provided with an embedded ring groove (7), the embedded ring groove (7) is matched with the embedded ring seat (6), and after the embedded ring seat (6) is installed, the embedded ring seat and the embedded ring groove (7) are in sliding embedded installation.
  2. 2. The anti-loosening gear structure of the gear pump according to claim 1, wherein the supporting end seats (4) are arranged in pairs, and the supporting end seats (4) are fixedly embedded and installed on two sides of the inside of the pump body cavity seat.
  3. 3. The anti-loosening gear structure of the gear pump according to claim 2, wherein the middle part of the supporting end seat (4) is provided with a mounting shaft hole in a penetrating manner, a sealing shaft sleeve (8) is arranged on the inner side of the mounting shaft hole, and shaft column parts of the driving rotating shaft (1) and the driven rotating shaft (2) are supported by the sealing shaft sleeve (8) to be rotatably arranged on the inner side of the mounting shaft hole.
  4. 4. The anti-loosening gear structure of the gear pump according to claim 3, wherein the two groups of pumping gears (3) are fixedly arranged in the middle of the driving rotating shaft (1) and the driven rotating shaft (2) respectively, and the pumping gears (3) are positioned between the two groups of supporting end seats (4).
  5. 5. The anti-loosening gear structure of the gear pump according to claim 1, wherein the rear ends of the driving rotating shaft (1) and the driven rotating shaft (2) are fixedly provided with mounting shaft posts (9), and the mounting shaft posts (9) movably penetrate through an end seat part at the rear part of the pump body and are positioned at the inner side of a sealing end cover arranged at the rear part of the pump body.
  6. 6. The anti-loosening gear structure of the gear pump according to claim 5, wherein the two groups of the synchronous gears (5) are fixedly arranged on the upper parts of mounting shaft posts (9) at the rear parts of the driving rotating shaft (1) and the driven rotating shaft (2) respectively, and the two groups of the synchronous gears (5) are in meshed connection through tooth grooves.

Description

Anti-loosening gear structure of gear pump Technical Field The utility model relates to the technical field of gear pumps, in particular to a locking gear structure of a gear pump. Background The gear pump is a power tool for pumping oil, has wide application in the aspects of price, reliability, service life, self-priming capability and the like, relies on two or more gears sealed in a pump body, and is a common pumping device in industrial production because of the change of working space volume generated in the process of mutual engagement to convey liquid medium. When the anti-loosening gear structure of the gear pump works, two pumping gears in the gear pump are required to bear the liquid conveying function and still keep synchronous operation to ensure the normal work of the pump, but a single-side power input type working structure is adopted for driving the pumping gears, one group of pumping gears are used as a driving part to carry out meshing driving on the other group of pumping gears, and due to meshing gaps between the two groups of pumping gears, the tooth groove structure of the pumping gears which are driven to impact when the gear pump works is easily damaged due to abrasion when the gear pump starts or stops, so that the normal work of a pump body is influenced by the meshing looseness of the gears. Disclosure of utility model The utility model aims to provide a locking gear structure of a gear pump, which aims to solve the problems in the prior art. The anti-loosening gear structure of the gear pump comprises a driving rotating shaft, a driven rotating shaft, a pumping gear, a supporting end seat and a synchronous gear, wherein the driving rotating shaft and the driven rotating shaft are supported by the supporting end seat to be in parallel distribution and are rotatably arranged in a cavity seat of a pump body, and two groups of mutually meshed synchronous gears are respectively arranged at the rear parts of the driving rotating shaft and the driven rotating shaft; Two sets of intermeshing pumping gears are respectively installed in the middle parts of a driving rotating shaft and a driven rotating shaft, two sets of pumping gears are respectively provided with embedded ring seats at two end sides, and the pumping gears are rotationally embedded and installed between two sets of support end seats through the embedded ring seats. Preferably, the support end seats are arranged in pairs, and the support end seats are fixedly embedded and mounted on two sides of the inside of the pump body cavity seat. Preferably, the middle part of the support end seat is provided with a mounting shaft hole in a penetrating manner, a sealing shaft sleeve is mounted on the inner side of the mounting shaft hole, and shaft column parts of the driving rotating shaft and the driven rotating shaft are rotatably mounted on the inner side of the mounting shaft hole through a sealing shaft sleeve supporting fixed shaft. Preferably, the two groups of pumping gears are respectively and fixedly arranged in the middle of the driving rotating shaft and the driven rotating shaft, and the pumping gears are positioned between the two groups of supporting end seats. Preferably, an engagement ring groove is provided on an inner side of the support end seat, the engagement ring groove is adapted to the engagement ring seat, and the engagement ring seat is slidably engaged with the engagement ring groove after the installation. Preferably, the rear ends of the driving rotating shaft and the driven rotating shaft are fixedly provided with mounting shaft posts, and the mounting shaft posts movably penetrate through the end seat part at the rear part of the pump body and are positioned at the inner side of the sealing end cover arranged at the rear part of the pump body. Preferably, the two groups of synchronous gears are respectively and fixedly arranged on the upper parts of the mounting shaft posts at the rear parts of the driving rotating shaft and the driven rotating shaft, and the two groups of synchronous gears are in meshed connection through tooth grooves. Compared with the prior art, the technical scheme provided by the utility model has the following technical effects: The gear pump adopts a gear synchronous auxiliary type working structure, two groups of synchronous gears meshed with each other are arranged at the rear part of a rotating shaft of two groups of pumping gears, the rotation synchronization of the two groups of pumping gears is realized through the meshing transmission of the two groups of synchronous gears, the two groups of pumping gears are synchronously and stably meshed in operation, the working impact caused by start and stop of a pump body is avoided, the service life of the pumping gears in the pump body can be effectively prolonged, the working stability of the pump body is greatly improved, the supporting end seat is utilized for carrying out working support on the rotating shaft structure of