CN216922985U - Elastic roller wheel used in impact vibration and friction environment - Google Patents

Abstract

The utility model discloses an elastic roller wheel used in impact vibration and friction environment, comprising an elastic roller wheel outer ring, wherein the middle part of the inner wall of the elastic roller wheel outer ring is fixedly provided with a rubber bushing, the inner wall of the rubber bushing is sleeved on the outer wall of the elastic roller wheel inner ring, two sides of the inner wall of the elastic roller wheel inner ring are respectively provided with a sliding bearing in a sliding way, and the top end of the inner wall and the bottom end of the inner wall of the elastic roller wheel outer ring are respectively fixedly provided with an end cover. The service life of the equipment can be prolonged, and the running safety of parts is further ensured.

Description

Elastic roller wheel used in impact vibration and friction environment

Technical Field

The utility model relates to the field of railway equipment, in particular to an elastic roller used in an impact vibration and friction environment.

Background

The railway turnout is an important core safety device for controlling the running direction of a train, the turnout mainly comprises two fixed immovable stock rails, two movable switch rails, a switch mechanism, a locking device and other components, and along with the development of the society and the continuous improvement of the running speed of the train, the locking device of the turnout is gradually replaced by an external locking device with more excellent and reliable performance from an original internal locking device.

In present life, traditional outer locking device does not set up the structure that reduces mechanical mechanism card group trouble and reduce conversion resistance, make outer locking device receive sliding friction when the locking, frictional force is great, not only increase mechanical mechanism's card group trouble, and increase conversion resistance, and then increase the wearing and tearing of part, and simultaneously, receive the heavy load during equipment operation and cross the vibrations that the car arouses and when assaulting, can reduce the life of equipment, and then can't guarantee spare part operation safety, consequently need one kind to be used for assaulting the elasticity running roller under vibrations and the frictional environment.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a resilient roller for use in impact shock and friction environments, which solves the above problems.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides an elastic roller wheel for assaulting under vibrations and the friction environment, includes the elastic roller wheel outer lane, the fixed rubber bush that is equipped with in middle part of elastic roller wheel outer lane inner wall, the outer wall at the elastic roller wheel inner circle is established to rubber bush's inner wall cover, the both sides of elastic roller wheel inner circle inner wall all slide and are equipped with slide bearing, the top of elastic roller wheel outer lane inner wall and the bottom of inner wall are all fixed and are equipped with the end cover, two the inner wall of end cover is all fixed and is equipped with the sealing washer.

Preferably, a plurality of oil storage pits are formed on the surfaces of the two sliding bearings.

Preferably, the rubber bushing is made of vulcanized rubber.

Preferably, the materials of the elastic roller outer ring, the elastic roller inner ring and the end cover are all 2Cr 13.

The utility model has the technical effects and advantages that:

(1) this an elastic roller wheel for assaulting vibrations and friction environment under, elastic roller wheel is by the elastic roller wheel outer lane, the elastic roller wheel inner circle, the rubber bush, slide bearing, the end cover, the sealing washer, the oil storage hole is constituteed, this device is applicable to in the novel high-speed railway outer locking device, can become rolling friction with the sliding friction that locking device received, not only reduce mechanical mechanism's card group trouble, and reduce the conversion resistance, and then reduce the wearing and tearing of part, and simultaneously, receive the vibrations that the heavy load car arouses and when assaulting during equipment operation, can increase the life of equipment, and then guarantee spare part operation safety.

(2) This an elastic roller for impacting under vibrations and the friction environment can let the running roller have different service characteristics through the adjustment to running roller metal material and rubber component in the elastic roller to can adapt to some specific operational environment, make elastic roller have more pertinence.

Drawings

FIG. 1 is a schematic view of the structure of the present invention.

FIG. 2 is a schematic cross-sectional plan view of the present invention.

In the figure: 1. an elastic roller outer ring; 2. an elastic roller inner ring; 3. a rubber bushing; 4. a sliding bearing; 5. an end cap; 6. a seal ring; 7. and (4) an oil storage pit.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

The utility model provides an elastic roller wheel used in an impact vibration and friction environment as shown in fig. 1-2, which comprises an elastic roller wheel outer ring 1, wherein a rubber bushing 3 is fixedly arranged in the middle of the inner wall of the elastic roller wheel outer ring 1, the inner wall of the rubber bushing 3 is sleeved on the outer wall of an elastic roller wheel inner ring 2, sliding bearings 4 are arranged on two sides of the inner wall of the elastic roller wheel inner ring 2 in a sliding manner, end covers 5 are fixedly arranged at the top end of the inner wall of the elastic roller wheel outer ring 1 and the bottom end of the inner wall, sealing rings 6 are fixedly arranged on the inner walls of the two end covers 5, a plurality of oil storage pits 7 are arranged on the surfaces of the two sliding bearings 4, the rubber bushing 3 is vulcanized rubber, and the elastic roller wheel outer ring 1, the elastic roller wheel inner ring 2 and the end covers 5 are all made of 2Cr 13.

1. The lining 3, the elastic roller outer ring 1 and the elastic roller inner ring 2 are vulcanized into a whole, and the coaxiality of the elastic roller outer ring 1 and the elastic roller inner ring 2

2. The performance indexes of the rubber are as follows:

(1) the tensile strength may be: not less than 20 MPa;

(2) the elongation at break can be: more than or equal to 300 percent;

(3) the shore a hardness may be: 60-70 parts of;

(4) the hot air aging may be: (70 +/-1) DEG C x 72h, the reduction rate of tensile strength is less than or equal to 20 percent, and the elongation at break is less than or equal to 50 percent;

(5) the low temperature resistance may be: -40 ℃;

(6) the tear resistance can be more than or equal to 35 KN/m;

(7) the compression set property may be; hot air (70 +/-1) DEG C is multiplied by 72h, and the compression permanent deformation is less than or equal to 30 percent;

3. the integral requirement of the elastic roller is as follows:

(1) when the loading force F is 10kN, the deformation is 0.56 +/-0.2 mm;

(2) under the 10kN radial pure-pressure pulse load, after 1000 ten thousand fatigue experiments, no part fails, and the static stiffness change is less than or equal to 20% at 10 kN;

(3) during assembly, the oil storage pit 7 on the surface of the sliding bearing 4 is coated with TR-1 lubricating grease.

The working principle of the utility model is as follows: the inner side and the outer side of the elastic roller are respectively provided with an elastic roller outer ring 1 and an elastic roller inner ring 2, sliding friction is shifted and rolled, the friction force is greatly reduced, the transmission efficiency is increased, the workpiece loss is reduced, rubber bushings 3 are added into the elastic roller outer ring 1 and the elastic roller inner ring 2, the damping device has a good damping effect on vibration and impact, the stability of the device in operation is ensured, and meanwhile, the roller can be adjusted according to the metal material and the rubber component of the roller, such as the hardness of metal, material, characteristic, the hardness of rubber, tensile strength, brittleness and the like, so that the roller has different use characteristics, can adapt to certain specific working environments, and is more targeted.

In the description of the present invention, unless otherwise expressly specified or limited, the terms "disposed," "mounted," "connected," and "secured" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integral to; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The standard parts used by the utility model can be purchased from the market, and the special-shaped parts can be customized according to the description and the description of the attached drawings.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (4)

1. The utility model provides an elastic roller wheel for assaulting under vibrations and the friction ring border, includes elastic roller wheel outer lane (1), its characterized in that, the fixed rubber bush (3) that is equipped with in middle part of elastic roller wheel outer lane (1) inner wall, the outer wall at elastic roller wheel inner circle (2) is established to the inner wall cover of rubber bush (3), the both sides of elastic roller wheel inner circle (2) inner wall all slide and are equipped with slide bearing (4), the top of elastic roller wheel outer lane (1) inner wall and the bottom of inner wall are all fixed and are equipped with end cover (5), two the inner wall of end cover (5) is all fixed and is equipped with sealing washer (6).

2. A resilient roller for use in impact shock and friction environments, as in claim 1, wherein the surfaces of both said sliding bearings (4) are formed with a plurality of oil sumps (7).

3. A resilient roller for use in impact shock and friction environments according to claim 1 wherein the rubber bushing (3) is vulcanized rubber.

4. A resilient roller for use in impact shock and friction environment according to claim 1, characterized in that the outer ring (1), the inner ring (2) and the end cap (5) are all made of 2Cr 13.

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