CN214887886U

CN214887886U - Rubber shaft sleeve for enhancing balance degree

Info

Publication number: CN214887886U
Application number: CN202023162889.3U
Authority: CN
Inventors: 干乃聪
Original assignee: Yuyao Zhenda Plastic Co ltd
Current assignee: Yuyao Zhenda Plastic Co ltd
Priority date: 2020-12-24
Filing date: 2020-12-24
Publication date: 2021-11-26
Anticipated expiration: 2030-12-24

Abstract

A rubber shaft sleeve for enhancing balance degree belongs to the technical field of shaft sleeves and comprises an aluminum inner core framework, a rubber body and an aluminum outer ring framework; the aluminum inner core framework is wrapped in the center of the rubber body and fixedly connected with the rubber body; the rubber body is wrapped in the center of the aluminum outer ring framework and fixedly connected with the aluminum outer ring framework; a motor shaft hole and a nut settlement hole are formed in the aluminum inner core framework; one side of the aluminum inner core framework is provided with a positioning hole. An annular clamping groove is formed in the outer side of the aluminum outer ring framework. The motor shaft hole is an oblate shaft hole. The outer edge of the aluminum outer ring framework is provided with 4 reinforcing grooves A; the inner edge of the aluminum outer ring framework is provided with 4 semicircular convex ribs. The rubber body is annular, and 4 reinforcing grooves B are formed in the outer edge of the annular; the annular inner edge has 6 square reinforcing grooves. The outer edge of the aluminum inner core framework is provided with 6 square convex ribs. The utility model has the advantages that: tensile and torsional strength can be increased and end jump can be reduced.

Description

Rubber shaft sleeve for enhancing balance degree

Technical Field

The utility model relates to an axle sleeve, in particular to rubber axle sleeve of reinforcing equilibrium belongs to axle sleeve technical field.

Background

The shaft sleeve is suitable for household, commercial and vehicle air conditioners, air film machines and air supply fans, and essential important parts are matched with the motor connecting section and are core parts which play an important role in reducing the vibration and noise reduction of the fan blade end when the motor rotates. The shaft sleeve is a product formed by injecting glue into an extrusion die by a hydraulic vulcanizing machine (200T3RT) for metal and synthetic rubber after mixing and processing, and the product has the characteristics of light weight, good strength, good shock absorption effect, good weather resistance and the like. The vibration of the motor shaft during operation is reduced by the rubber vibration absorption characteristic, so that the fan blade is always in a stable state during operation, and the vibration of the fan blade is effectively reduced.

The shaft sleeve used at present has the following problems:

1. the tensile strength and the torsion strength can not meet the requirements, so that the product has poor damping effect and is easy to shake;

2. the end jump of the product is unstable, the dynamic balance fluctuation of the fan blades is large, and the use feeling is influenced by the exceeding of wind noise.

SUMMERY OF THE UTILITY MODEL

The utility model aims at above-mentioned prior art in, tensile strength and torsional strength are not enough, easily shake, the end jumps unstable defect, provide a rubber axle sleeve of reinforcing equilibrium degree, can increase tensile strength and torsional strength, the end jumps the purpose that reduces.

In order to realize the purpose, the utility model adopts the technical scheme that: a rubber shaft sleeve for enhancing the balance degree is assembled with a wind wheel for use; the shaft sleeve comprises an aluminum inner core framework, a rubber body and an aluminum outer ring framework; the aluminum inner core framework is wrapped in the middle of the rubber body and fixedly connected with the rubber body; the rubber body is wrapped in the center of the aluminum outer ring framework and fixedly connected with the aluminum outer ring framework; a motor shaft hole and a nut settlement hole are formed in the aluminum inner core framework; one side of the aluminum inner core framework is provided with a positioning hole.

And an annular clamping groove is formed in the outer side of the aluminum outer ring framework.

The motor shaft hole is an oblate shaft hole.

The outer edge of the aluminum outer ring framework is provided with 4 reinforcing grooves A; the inner edge of the aluminum outer ring framework is provided with 4 semicircular convex ribs.

The rubber body is annular, and 4 reinforcing grooves B are formed in the outer edge of the annular shape; the annular inner edge has 6 square reinforcing grooves.

The outer edge of the aluminum inner core framework is provided with 6 square convex ribs.

The 4 semicircular convex ribs on the inner edge of the aluminum outer ring framework are mutually matched with the 4 reinforcing grooves B on the annular outer edge.

6 square reinforcing grooves on the inner edge of the ring shape are mutually matched with 6 square convex ribs on the outer edge of the aluminum inner core framework.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the structure of the product is reasonably designed according to the suggestion provided by the customer, the aluminum outer ring framework is vulcanized and connected with the aluminum inner core framework through the rubber body, the tensile strength and the torsion are greatly improved through testing, and the tensile strength is improved to 2000N from the original 1000N; the torsion strength is improved to 18MPA from the original 10 MPA;

2. meanwhile, after the design is adopted, because the aluminum inner core framework and the aluminum outer ring framework are manufactured by high-precision numerical control processing, the end jump of the product is controlled within 5mm, so that the end jump of the final product is controlled within 12mm, the requirement of a client for being less than or equal to 20mm is met, and the wind noise is greatly reduced, and the effects of shock absorption and noise reduction are achieved; the stability of the client product is enhanced through the problem solving, so that the mutual cooperation is more compact and the market prospect is better.

Drawings

FIG. 1 is a schematic diagram of: the utility model discloses a front view;

FIG. 2 is a diagram of: the utility model discloses a rear view;

FIG. 3 is a diagram of: the utility model discloses a left-side view section;

FIG. 4 is a diagram of: the utility model discloses the plan view.

Description of reference numerals: the aluminum core frame comprises an aluminum core frame 1, a square convex rib 101, a rubber body 2, a reinforcing groove B201, a square reinforcing groove 202, an aluminum outer ring frame 3, an annular clamping groove 301, a reinforcing groove A302, a semicircular convex rib 303, a motor shaft hole 4, a nut settlement hole 5 and a positioning hole 6.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and specific examples, which are not intended to limit the present invention.

As shown in fig. 1 to 4, a rubber bushing for enhancing balance is assembled with a wind wheel (not shown); the shaft sleeve comprises an aluminum inner core framework 1, a rubber body 2 and an aluminum outer ring framework 3; the aluminum inner core framework 1 is wrapped in the middle of the rubber body 2 and fixedly connected with the rubber body; the rubber body 2 is wrapped in the center of the aluminum outer ring framework 3 and fixedly connected with the aluminum outer ring framework; a motor shaft hole 4 and a nut settlement hole are formed in the aluminum inner core framework 1; and one surface of the aluminum inner core framework 1 is provided with a positioning hole 6.

And an annular clamping groove 301 is formed in the outer side of the aluminum outer ring framework 3.

The motor shaft hole 4 is an oblate shaft hole.

The outer edge of the aluminum outer ring framework 3 is provided with 4 reinforcing grooves A302; the inner edge of the aluminum outer ring framework 3 is provided with 4 semicircular convex ribs 303.

The rubber body 2 is annular, and 4 reinforcing grooves B201 are formed in the outer edge of the annular shape; the annular inner edge has 6 square reinforcement grooves 202.

The outer edge of the aluminum inner core framework 1 is provided with 6 square convex ribs 101.

The 4 semicircular convex ribs 303 on the inner edge of the aluminum outer ring framework 3 are mutually matched with the 4 reinforcing grooves B201 on the annular outer edge.

The 6 square reinforcing grooves 202 on the inner edge of the ring shape and the 6 square convex ribs 101 on the outer edge of the aluminum inner core framework 1 are mutually matched.

The specific use method comprises the following steps: the product is placed into a cavity of an injection mold during injection molding, the end with the positioning hole 6 is inserted into a positioning pin (not shown) of the mold for fixation, and after mold closing and injection molding, the screw hole of the product of the plastic wind wheel hub can be ensured not to deviate at a fixed position all the time, so that the problems that a pneumatic opener for driving the screw cannot effectively align the screw due to deviation caused by no positioning, the screw is deviated, the screw cannot be driven in place and the screw slips are solved.

The above-mentioned embodiments are only preferred embodiments of the present invention, and the ordinary changes and replacements within the technical scope of the present invention should be covered by the protection scope of the present invention.

Claims

1. A rubber shaft sleeve for enhancing the balance degree is assembled with a wind wheel for use; the method is characterized in that: the shaft sleeve comprises an aluminum inner core framework, a rubber body and an aluminum outer ring framework; the aluminum inner core framework is wrapped in the middle of the rubber body and fixedly connected with the rubber body; the rubber body is wrapped in the center of the aluminum outer ring framework and fixedly connected with the aluminum outer ring framework; a motor shaft hole and a nut settlement hole are formed in the aluminum inner core framework; one side of the aluminum inner core framework is provided with a positioning hole.

2. The rubber bushing of claim 1 wherein: and an annular clamping groove is formed in the outer side of the aluminum outer ring framework.

3. The rubber bushing of claim 1 wherein: the motor shaft hole is an oblate shaft hole.

4. The rubber bushing of claim 1 wherein: the outer edge of the aluminum outer ring framework is provided with 4 reinforcing grooves A; the inner edge of the aluminum outer ring framework is provided with 4 semicircular convex ribs; the rubber body is annular, and 4 reinforcing grooves B are formed in the outer edge of the annular; the annular inner edge is provided with 6 square reinforcing grooves; the outer edge of the aluminum inner core framework is provided with 6 square convex ribs.

5. The rubber bushing of claim 4 wherein: the 4 semicircular convex ribs on the inner edge of the aluminum outer ring framework are mutually matched with the 4 reinforcing grooves B on the annular outer edge.

6. The rubber bushing of claim 4 wherein: the 6 square reinforcing grooves on the inner edge of the ring shape are mutually matched with the 6 square convex ribs on the outer edge of the aluminum inner core framework.