CN213574775U

CN213574775U - Line contact type rubber bearing structure

Info

Publication number: CN213574775U
Application number: CN202022638166.XU
Authority: CN
Inventors: 向为; 郑旭洋
Original assignee: Zhejiang Dayuan Pump Industry Co ltd
Current assignee: Zhejiang Dayuan Pump Industry Co ltd
Priority date: 2020-11-14
Filing date: 2020-11-14
Publication date: 2021-06-29
Anticipated expiration: 2030-11-14

Abstract

The utility model belongs to the technical field of the water pump, a line contact rubber bearing structure is related to, pivot and stator including coaxial setting, the pivot is rotated and is set up in the installation through-hole of stator, fixed cover is equipped with the axle sleeve in the pivot, and the installation through-hole internal fixation of stator has rubber bearing, and the contact is connected between rubber bearing and the axle sleeve, rubber bearing's hole cutting is axial polygon, and the contact surface between rubber bearing and the axle sleeve is line contact. The utility model provides a line contact rubber bearing structure, its simple structure has reduced rubber bearing's wearing and tearing, has promoted charge pump efficiency.

Description

Line contact type rubber bearing structure

Technical Field

The utility model belongs to the technical field of the water pump, a line contact rubber bearing structure is related to.

Background

Multistage pumps typically use an elongated shaft, and due to shaft deflection, the impeller near the discharge end can experience deflection during operation, requiring additional bearing correction. At present, a rubber bearing and a stainless steel shaft sleeve are usually used in the market to be matched and practical, the shaft sleeve and the rubber bearing are in two cylindrical surface contact, and friction loss has certain influence on the energy efficiency of the electric pump. Meanwhile, the friction between the shaft sleeve and the rubber bearing can cause the rubber bearing to be abraded, and the service life of the rubber bearing is shortened.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to prior art's not enough, provide a line contact rubber bearing structure, its simple structure has reduced rubber bearing's wearing and tearing, has promoted charge pump efficiency.

In order to solve the above technical problem, the purpose of the present invention can be achieved by the following technical solutions:

the utility model provides a line contact formula rubber bearing structure, includes the pivot and the stator of coaxial setting, the pivot rotates and sets up in the mounting hole of stator, fixed cover is equipped with the axle sleeve in the pivot, and the mounting hole internal fixation of stator has rubber bearing, and the contact is connected between rubber bearing and the axle sleeve, rubber bearing's hole cutting is axial polygon, and the contact surface between rubber bearing and the axle sleeve is line contact.

In the above-mentioned one of the line contact type rubber bearing structures, the polygon may be a polygon of any shape. Preferably, the polygon is a regular polygon, the side of the regular polygon is tangent to the outer circular surface of the shaft sleeve, and the diameter of the inscribed circle of the regular polygon is equal to the outer diameter of the shaft sleeve.

In one of the above-described line contact type rubber bearing structures, it is more preferable that the number of sides of the regular polygon is 6 to 12.

In the above line contact type rubber bearing structure, the rotating shaft and the shaft sleeve are fixed by a flat key.

In a line contact rubber bearing structure of foretell, the parallel arrangement has a plurality of annular mounting grooves in the installation through-hole of stator, be provided with the turn-ups structure of joint in the mounting groove on the rubber bearing. Preferably, the number of the mounting grooves is two, and the mounting grooves correspond to the flanging structures at the upper end and the lower end of the rubber bearing respectively.

In the above line contact type rubber bearing structure, the material of the shaft sleeve is ceramic or metal, preferably stainless steel.

Compared with the prior art, the utility model, following beneficial effect has:

the utility model discloses a change the shape of rubber bearing hole, improve original circular hole for regular polygon hole, the contact surface of during operation rubber bearing and axle sleeve becomes line contact by the face contact, area of contact reduces to reduce rubber bearing's loss. The utility model discloses simple structure, it is with low costs, easy to assemble maintains, has promoted rubber bearing's life, has promoted charge pump efficiency.

Drawings

Fig. 1 is a cross-sectional view of the present invention;

FIG. 2 is a top view of the rubber bearing of the present invention;

reference numerals: 1. a rotating shaft; 2. a guide vane; 3. mounting a through hole; 4. a shaft sleeve; 5. a rubber bearing; 6. mounting grooves; 7. and a flanging structure.

Detailed Description

The invention will be further described in the following with reference to specific embodiments thereof, with reference to the accompanying drawings, in which figures 1-2:

the utility model provides a line contact formula rubber bearing structure, includes pivot 1 and the stator 2 of coaxial setting, pivot 1 rotates and sets up in the installation through-hole 3 of stator 2, fixed cover is equipped with axle sleeve 4 in the pivot 1, and 3 internal fixations of installation through-hole of stator 2 have rubber bearing 4, and the contact is connected between rubber bearing 4 and the axle sleeve 5, the hole cutting of rubber bearing 4 is axial polygon, and the contact surface between rubber bearing 4 and the axle sleeve 5 is line contact.

Referring to fig. 2, the polygon is a regular polygon, the sides of the regular polygon are tangent to the outer circular surface of the shaft sleeve 4, and the diameter of the inner circle of the regular polygon is equal to the outer diameter of the shaft sleeve 4. Preferably, the number of the sides of the regular polygon is 6-12, and the inner hole of the rubber bearing 4 in the attached figure 2 is cut into a regular octagon.

The utility model discloses fixed knot between each subassembly constructs: the rotating shaft 1 and the shaft sleeve 4 are fixed through a flat key.

A plurality of annular mounting grooves 6 are arranged in the mounting through holes 3 of the guide vanes 2 in parallel, and the rubber bearing 5 is provided with a flanging structure 7 which is clamped in the mounting grooves 6. Preferably, the mounting grooves 6 are provided with two flanging structures 7 respectively corresponding to the upper end and the lower end of the rubber bearing 5. The flanging structure 7 of the rubber bearing 5 is clamped in the upper and lower mounting grooves 6 by utilizing the characteristic of elastic deformation.

The material of the sleeve 4 is ceramic or metal, preferably stainless steel.

The utility model discloses an operating method and theory of operation are: through the shape that changes 5 holes of rubber bearing, improve original circular hole into regular polygon hole, the contact surface of during operation becomes line contact by the face contact, and area of contact reduces to reduce 5's of rubber bearing loss, improve the water pump efficiency.

The above-mentioned embodiment is only the preferred embodiment of the present invention, and does not limit the protection scope of the present invention according to this, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a line contact formula rubber bearing structure, includes pivot (1) and stator (2) of coaxial setting, pivot (1) is rotated and is set up in installation through-hole (3) of stator (2), its characterized in that, fixed cover is equipped with axle sleeve (4) on pivot (1), and installation through-hole (3) internal fixation of stator (2) has rubber bearing (5), and the contact is connected between rubber bearing (5) and axle sleeve (4), the hole cutting of rubber bearing (5) is axial polygon, and the contact surface between rubber bearing (5) and axle sleeve (4) is line contact.

2. The line contact type rubber bearing structure of claim 1, wherein the polygon is a regular polygon, the sides of the regular polygon are tangent to the outer circular surface of the shaft sleeve (4), and the diameter of the inner circle of the regular polygon is equal to the outer diameter of the shaft sleeve (4).

3. The line-contact rubber bearing structure of claim 2, wherein the number of sides of the regular polygon is 6 to 12.

4. The line contact type rubber bearing structure of claim 1, wherein the rotating shaft (1) and the shaft sleeve (4) are fixed through a flat key.

5. The line contact type rubber bearing structure of claim 1, wherein a plurality of annular mounting grooves (6) are arranged in parallel in the mounting through hole (3) of the guide vane (2), and the rubber bearing (5) is provided with a flanging structure (7) clamped in the mounting grooves (6).

6. The line contact type rubber bearing structure of claim 1, wherein the material of the shaft sleeve (4) is stainless steel.