CN216894899U

CN216894899U - Vacuum pump

Info

Publication number: CN216894899U
Application number: CN202122621462.3U
Authority: CN
Inventors: 李回城; 包华斌; 王新宇; 陈明月; 李成杰; 朱相青
Original assignee: Shanghai Zhaomin Power Technology Co ltd
Current assignee: Shanghai Zhaomin Power Technology Co ltd
Priority date: 2021-10-29
Filing date: 2021-10-29
Publication date: 2022-07-05
Anticipated expiration: 2031-10-29

Abstract

The utility model relates to the technical field of automobile parts, in particular to a vacuum pump for an automobile. In order to increase the axial clearance of vacuum and facilitate the layout of related components, the utility model provides a vacuum pump which comprises a rotor, a coupler and a locking pin, wherein the connecting end of the rotor is provided with an accommodating groove for installing the coupler, the side wall of the accommodating groove is provided with a connecting pin hole, and the locking pin is inserted into the connecting pin hole and tightly abuts against the coupler. The rotor and the coupler in the vacuum pump are connected in a locking mode through the locking pin arranged on the side face of the rotor, so that the axial clearance required by the connection of the rotor and the coupler can be effectively reduced, the occupied space of the vacuum pump in the axial direction can be further reduced, and design and assembly personnel can conveniently arrange related components.

Description

Vacuum pump

Technical Field

The utility model relates to the technical field of automobile parts, in particular to a vacuum pump for an automobile.

Background

As shown in fig. 1, a rotor 01 and a coupling 02 of a conventional vacuum pump for an automobile are interference-coupled by an axial pin 03. However, when the axial pin 03 is pressed into a connecting hole (not shown) of the rotor 01 through the connecting shaft through hole 021 of the coupling 02, a sufficient axial clearance is required, so that the axial clearance of the vacuum pump is small, and the layout of related components is affected.

SUMMERY OF THE UTILITY MODEL

In order to increase the axial clearance of vacuum and facilitate the layout of related parts, the utility model provides a vacuum pump, which comprises a rotor, a coupler and a locking pin, wherein the connecting end of the rotor is provided with a containing groove for installing the coupler, and the side wall of the containing groove is provided with a connecting pin hole; and a connecting clamping groove is formed in the side wall of the coupler, and the locking end of the locking pin penetrates through the connecting pin hole and is inserted into the connecting clamping groove. The vacuum pump provided by the utility model has the advantages that the shaft coupling is clamped by the locking pin which is fixedly arranged on the side surface of the rotor, so that the shaft coupling is connected with the rotor, the axial clearance required when the rotor is connected with the shaft coupling can be effectively reduced, the occupied space of the vacuum pump in the axial direction can be further reduced, and the design of related parts by an assembler is facilitated.

Preferably, the coupler is provided with two connecting clamping grooves which are arranged in a central symmetry manner. Like this, when connecting rotor and shaft coupling, usable two fitting pin put the shaft coupling card in the holding tank, and two connecting groove are centrosymmetric setting, can avoid the shaft coupling atress unbalanced, further improve the stability of being connected between shaft coupling and the rotor.

Preferably, the shaft coupling includes "ten" font chassis and two connection lugs, connect the lug and be in the chassis deviates from be the symmetry setting on the top surface of rotor, connect the draw-in groove and be located on the chassis, just connect the draw-in groove with connect the lug and be the interval setting. The coupler is simple in structure, the connecting clamping grooves are located on the cross-shaped chassis in the coupler and are arranged at intervals with the connecting lugs, and the connecting stability between the coupler and the rotor can be improved.

Drawings

FIG. 1 is a schematic view of a rotor and a coupling in a conventional vacuum pump;

FIG. 2 is a schematic view of the connection of the rotor to the coupling in the vacuum pump of the present invention;

fig. 3 is a schematic sectional structure view of a-a in fig. 2.

Detailed Description

The vacuum pump of the present invention will be described in detail with reference to fig. 2 and 3.

As shown in fig. 2 and 3, the vacuum pump of the present invention comprises a rotor 1, a coupling 2 and a locking pin 3, wherein a receiving groove 11 for mounting the coupling 2 is provided at a connection end of the rotor 1, and a connecting pin hole 12 is provided at a side wall of the receiving groove 11; the coupling 2 is provided with a connecting slot 21 on the side wall, and the locking end of the locking pin 3 passes through the connecting pin hole 12 and is inserted into the connecting slot 21. In the vacuum pump, the shaft coupling 2 is clamped by the locking pin 3 which is fixedly arranged on the side surface of the rotor 1, so that the shaft coupling 2 is connected with the rotor 1, the axial clearance required when the rotor 1 is connected with the shaft coupling 2 can be effectively reduced, the occupied space of the vacuum pump in the axial direction can be further reduced, and the design and assembly personnel can conveniently arrange related components. Preferably, two connecting clamping grooves 201 are arranged on the coupler 2, and the two connecting clamping grooves 201 are arranged in a central symmetry manner. Like this, when connecting rotor 1 and shaft coupling 2, usable two fitting pin 3 put shaft coupling 2 card in holding tank 11, and two connect the draw-in groove 21 and be centrosymmetric setting, can avoid shaft coupling 2 atress unbalanced, further improve the stability of being connected between shaft coupling 2 and the rotor 1.

As shown in fig. 2 and 3, the coupling 2 includes a cross-shaped chassis 21 and two connecting protrusions 22, the connecting protrusions 22 are symmetrically disposed on a top surface of the chassis 21 away from the rotor, the connecting slots 201 are disposed on the chassis 21, and the connecting slots 201 and the connecting protrusions 22 are disposed at intervals. The coupler 2 is simple in structure, the connecting clamping grooves 21 are located on the cross-shaped base plate 20 in the coupler 2 and are arranged at intervals with the connecting convex blocks 22, and the connecting stability between the coupler and the rotor can be improved.

Claims

1. A vacuum pump is characterized by comprising a rotor, a coupler and a locking pin, wherein a connecting end of the rotor is provided with a containing groove for mounting the coupler, and a connecting pin hole is formed in the side wall of the containing groove; and a connecting clamping groove is formed in the side wall of the coupler, and the locking end of the locking pin penetrates through the connecting pin hole and is inserted into the connecting clamping groove.

2. A vacuum pump according to claim 1, wherein the coupling is provided with two connecting clamping grooves which are arranged in a central symmetry manner.

3. A vacuum pump according to claim 2, wherein the coupling comprises a cross-shaped base plate and two connecting lugs, the connecting lugs are symmetrically arranged on the top surface of the base plate facing away from the rotor, the connecting clamping grooves are arranged on the base plate, and the connecting clamping grooves and the connecting lugs are arranged at intervals.