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Small hydraulic motor pump set structure

A technology of hydraulic motors and pump sets, which is applied in the direction of pumps, pump devices, pump components, etc., which can solve the problems of failure to meet the supporting requirements of amphibious equipment, low relative speed, poor sealing performance, etc., achieve light weight and increase service life , good sealing performance

Pending Publication Date: 2018-09-28
GUANGDONG SHUNDA MARINE ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The pumps on the market generally include a pump body, a motor, a pump shaft and an impeller. The motor is fixedly installed outside the pump body. The pump rolling bearing is supported on the pump body and extends into the inner cavity of the pump body. In the inner cavity, this kind of pump has a large volume and heavy weight. Since it is driven by a motor, it is not suitable for use in occasions where the power supply is insufficient, and the relative speed is low, and the sealing performance is poor, so that the main shaft is easy to be immersed in the liquid for a long time. Damaged, short service life, failed to meet the supporting needs of amphibious equipment

Method used

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  • Small hydraulic motor pump set structure
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Embodiment Construction

[0020] Below, the present invention will be further described in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of not conflicting, the various embodiments described below or the technical features can be combined arbitrarily to form new embodiments. .

[0021] Such as figure 1 The pump group structure of a small hydraulic motor 10 shown includes a hydraulic motor 10, a main shaft 11, an impeller 12, a pump body 13, a pump cover 14, a seal bracket 15 and a mechanical seal assembly 16, and the main shaft 11 is connected to the hydraulic motor 10 in a transmission manner. The impeller 12 is fixed on the main shaft 11, the pump cover 14 is fixed on the pump body 13, the pump cavity 17 is formed between the pump cover 14 and the pump body 13, the sealing bracket 15 is fixed on the pump cover 14, the gap between the pump cover 14 and the sealing bracket 15 A mechanical seal chamber 18 for accommodating the...

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Abstract

The invention discloses a small hydraulic motor pump set structure. The small hydraulic motor pump set structure comprises a hydraulic motor, a main shaft, an impeller, a pump body, a pump cover and amechanical sealing module; the main shaft is in transmission connection with the hydraulic motor; the impeller is fixed on the main shaft; the pump cover is fixed on the pump body; a pump cavity is formed between the pump cover and the pump body; the main shaft is rotationally mounted on the pump cover through the mechanical sealing module, and extends into the pump cavity for improving tightnessof the pump cavity; and the impeller is positioned in the pump cavity. The small hydraulic motor pump set structure has the characteristics of smaller size, lower weight and higher rotating speed, isbetter in sealing performance, facilitates prolonging of the service life, is higher in safety, and can meet the mating demands of water and land amphibious equipment.

Description

technical field [0001] The invention relates to a pump, in particular to a structure of a small hydraulic motor pump group. Background technique [0002] At present, pumps used in amphibious equipment have strict sealing requirements, high safety performance requirements, and require as little space as possible. The pumps on the market generally include a pump body, a motor, a pump shaft and an impeller. The motor is fixedly installed outside the pump body. The pump rolling bearing is supported on the pump body and extends into the inner cavity of the pump body. In the inner cavity, this kind of pump has a large volume and heavy weight. Since it is driven by a motor, it is not suitable for use in occasions where the power supply is insufficient, and the relative speed is low, and the sealing performance is poor, so that the main shaft is easy to be immersed in the liquid for a long time. Damaged, short service life, failed to meet the supporting needs of amphibious equipmen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D13/04F04D29/42F04D29/08F04D29/12
CPCF04D13/04F04D29/086F04D29/122F04D29/426F04D29/4293
Inventor 林志强
Owner GUANGDONG SHUNDA MARINE ENG
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