CN210127940U

CN210127940U - Multi-arm gear pump sealing guide sleeve

Info

Publication number: CN210127940U
Application number: CN201822149755.4U
Authority: CN
Inventors: 魏巍; 张涛
Original assignee: AVIC Jincheng Nanjing Engineering Institute of Aircraft Systems
Current assignee: Jincheng Nanjing Electromechanical Hydraulic Pressure Engineering Research Center Aviation Industry Corp of China; AVIC Jincheng Nanjing Engineering Institute of Aircraft Systems
Priority date: 2018-12-20
Filing date: 2018-12-20
Publication date: 2020-03-06
Anticipated expiration: 2028-12-20

Abstract

The utility model belongs to the field of gear pump assembly of aviation environmental control systems, and relates to a multi-arm gear pump sealing guide sleeve, which comprises a guide sleeve main body 1, a long arm 2 and a cone 3; the long arm 2 and the cone 3 are arranged on two sides of the guide sleeve main body 1. The utility model discloses a to sealed protection when the mount pad of gear pump is installed with the driving gear, to sealed damage when having solved driving gear spline embedding mount pad and sealing, can reduce the sealed installation degree of difficulty of gear pump, improve sealed reliability.

Description

Multi-arm gear pump sealing guide sleeve

Technical Field

The invention belongs to the field of assembly of aviation environmental control system gear pumps, and particularly relates to a multi-arm gear pump sealing guide sleeve.

Background

Sealing is a key part for ensuring the reliability of the gear pump, and directly influences the service life and the reliability of the gear pump. The gear pump adopts the material to seal the working solution of gear pump for the leather cup of rubber usually, and the gear pump is in the installation, because lack the safeguard measure, the sealed damage of leather cup has often been caused to the spline of gear pump driving gear, has destroyed sealed effect. In the gear pump installation, avoid the driving gear spline to cause the damage to sealed, be the important means of guaranteeing sealed and gear pump reliability.

Disclosure of Invention

The invention aims to provide a multi-arm gear pump sealing guide sleeve, which protects a spline of a driving gear when the driving gear is embedded into a mounting seat for sealing in the gear pump mounting process, and avoids the damage of the spline of the driving gear to sealing.

Technical scheme

A multi-arm gear pump sealing guide sleeve comprises a guide sleeve main body 1, a long arm 2 and a cone 3; the long arm 2 and the cone 3 are arranged on two sides of the guide sleeve main body 1.

The vertebral body 3 is a smooth cone.

The long arm 2 is in the shape of a multi-arm reverse spline groove.

When a driving gear of the gear pump is embedded into the mounting seat seal 4, the long arm 2 of the multi-arm type seal guide sleeve falls into the groove of the driving gear spline 5, and sealing is protected.

Has the advantages that: the multi-arm gear pump sealing guide sleeve can improve the installation precision and efficiency of the gear pump and improve the sealing reliability of the gear pump.

Drawings

FIG. 1 is a block diagram of a gear pump mount seal and drive gear;

wherein, 4 are that the mount pad is sealed, and 5 are driving gear splines.

Fig. 2a is a structure diagram of a sealing guide sleeve of a multi-arm gear pump.

Fig. 2b is a cross-sectional view of fig. 2 a.

1-guide sleeve body, 2-long arm, 3-vertebral body

Detailed Description

The invention is described in further detail below with reference to the accompanying drawings, which refer to the description.

Fig. 1 is a block diagram of a gear pump mount seal and a drive gear, where the drive gear spline 5 needs to pass through the mount seal 4 when the mount is combined with a housing.

Referring to the attached drawings 2a and 2b, the invention discloses a multi-arm gear pump sealing guide sleeve, which comprises a guide sleeve main body 1, a long arm 2 and a cone 3.

Wherein, the long arm 2 and the cone 3 are arranged at two sides of the guide sleeve main body 1. The long arm 2 is in the shape of an inverse spline groove, and the number of the long arms is consistent with that of the spline grooves. The vertebral body 3 is a small-angle oblique cone.

When the gear pump is installed, the long arm 2 of the multi-arm gear pump sealing guide sleeve falls in the groove of the driving gear spline 5, and the installation seat seal 4 smoothly penetrates through the guide sleeve main body 1 under the guidance of the cone 3, so that the installation seat seal avoids the sharp edge of the driving gear spline 5,

the sealing is not damaged, so that the sealing is protected.

Claims

1. A multi-arm gear pump sealing guide sleeve is characterized by comprising a guide sleeve main body (1), a long arm (2) and a cone (3); the long arm (2) and the cone (3) are arranged on two sides of the guide sleeve main body (1).

2. A multi-arm gear pump sealing guide sleeve according to claim 1, characterized in that the cone (3) is rounded and tapered.

3. A multi-arm gear pump seal guide sleeve according to claim 1 or 2, characterized in that the long arm (2) is in the shape of a multi-arm anti-spline groove.

4. The multi-arm gear pump seal guide sleeve of claim 1,

when a driving gear of the gear pump is embedded into the mounting seat seal (4), the long arm (2) of the multi-arm type seal guide sleeve falls into the groove of the driving gear spline (5), so that the seal is protected.