CN215284211U - Caster with good rolling stability - Google Patents

Abstract

The utility model relates to a truckle that roll stability is good, including the truckle main part, the truckle main part includes the support, wears to locate the shaft of support, at least two gyro wheels that rotationally wear to locate the shaft, the gyro wheel includes the wheel body, locates the bearing in the wheel body, the bearing inner race is connected in the wheel body. The utility model relates to a truckle field, adopt at least two gyro wheels to roll, improved the bearing capacity of gyro wheel and the stability that the gyro wheel rolled, and when a gyro wheel damaged, other gyro wheels can continue to use, during the maintenance, only need change the gyro wheel damaged, reduced the maintenance cost; the technical problems that the roller of the caster wheel is unstable in rolling and small in bearing capacity are solved.

Description

Caster with good rolling stability

Technical Field

The utility model relates to a truckle field especially relates to a truckle that roll stability is good.

Background

At present, the current truckle adopts the gyro wheel to roll, is equipped with a bearing in the gyro wheel, and the gyro wheel passes through the bearing and rolls, and when the gyro wheel of single bearing rolled, the bearing capacity was low, and rolls unstably, takes place to rock easily, rolls unstably, and life is short.

SUMMERY OF THE UTILITY MODEL

Therefore, to foretell problem, the utility model provides a truckle that roll stability is good. The technical problems that the roller of the caster rolls unstably and the bearing capacity is small are solved.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a truckle that roll stability is good, includes the truckle main part, the truckle main part includes the support, wears to locate the shaft of support, at least two gyro wheels that rotationally wear to locate the shaft, the gyro wheel includes the wheel body, locates the bearing in the wheel body, the bearing inner race is connected in the wheel body.

Further:

a first spacer bush is arranged between every two adjacent bearings, the wheel shaft is sleeved with the first spacer bush, and two ends of the first spacer bush are respectively abutted against the inner rings of the two corresponding bearings or gaps exist between the two ends of the first spacer bush and the inner rings of the two corresponding bearings.

Annular first concave parts are respectively arranged at two ends of the first spacer bush, and the first concave parts are inserted into the inner ring of the bearing.

And a first wheel cover is arranged on the first spacer bush, and two adjacent rollers are respectively covered on two sides of the first wheel cover.

And two ends of the wheel shaft are respectively provided with a second wheel cover, the second wheel covers are arranged on the rollers, and the second wheel covers are mutually abutted against the inner rings of the adjacent bearings or have gaps.

The wheel shaft is fixed on the bracket through a fixing piece.

And two ends of the wheel shaft are respectively sleeved with a second spacer sleeve, and one end of each second spacer sleeve is abutted against the inner ring of the adjacent bearing or a gap exists between the two adjacent bearing.

And the second spacer is provided with an annular second concave part which is inserted into the inner ring of the bearing.

The wheel shaft is sleeved with a wear-resistant ring.

By adopting the technical scheme, the beneficial effects of the utility model are that:

the utility model adopts at least two rollers to roll, which improves the bearing capacity of the roller and the rolling stability of the roller, and when one roller is damaged, other rollers can be continuously used, and only the damaged roller needs to be replaced during maintenance, thereby reducing the maintenance cost; furthermore, two ends of the first spacer bush are respectively abutted against inner rings of the two corresponding bearings or gaps exist between the two ends of the first spacer bush and the inner rings of the two corresponding bearings, when the inner rings of the bearings are subjected to axial acting force, the first spacer bush has a certain supporting effect on the inner rings of the bearings, so that the inner rings of the bearings cannot move left and right, the rollers roll more stably, and the service life of the bearings is prolonged; furthermore, due to the arrangement of the first concave part and the second concave part, the wheel shaft cannot be in direct contact with the bearing, and the wheel shaft is prevented from being deformed due to overlarge stress; furthermore, when the wheel shaft is provided with the second spacer bush, the inner rings of the bearings at two ends can be supported, so that the inner rings of the bearings cannot move left and right, and the rolling of the roller is more stable; furthermore, when the wheel shaft is sleeved with a wear-resistant ring, the wheel shaft can be better protected.

Drawings

FIG. 1 is a schematic structural diagram of the first embodiment;

FIG. 2 is a cross-sectional view of the first embodiment;

FIG. 3 is an exploded view of the first embodiment;

FIG. 4 is a sectional view of the second embodiment.

Detailed Description

The present invention will now be further described with reference to the accompanying drawings and detailed description.

The first embodiment is as follows:

referring to fig. 1 to 3, the present embodiment provides a caster with good rolling stability, including a caster body, the caster body includes a support 1, a wheel axle 2 penetrating through the support 1, and two rollers 3 rotatably penetrating through the wheel axle 2, the rollers 3 include a wheel body 31 and a bearing 32 disposed in the wheel body 31, an outer ring of the bearing 32 is connected to the wheel body 31, and the wheel axle 2 is fixed on the support 1 through a fixing member 4. A first spacer 5 is arranged between the two bearings 32, the wheel shaft 2 is sleeved with the first spacer 5, and two ends of the first spacer 5 are respectively abutted against the inner rings of the two corresponding bearings 32. The first spacer 5 has annular first recesses 50 at both ends thereof, and the first recesses 50 are inserted into the inner race of the bearing 32. Be equipped with first wheel lid 51 on the first spacer 5, two adjacent gyro wheels 3 are located to first wheel lid 51 both sides lid respectively, and 2 both ends of shaft are equipped with second wheel lid 6 respectively, and gyro wheel 3 is located in the lid of second wheel lid 6, and second wheel lid 6 supports each other with adjacent bearing 32 inner circle and leans on.

The first spacer 5 can also be integrally formed with the axle 2, and the structure is not convenient to assemble and disassemble and is particularly arranged according to the situation.

The two ends of the first spacer 5 may have a small gap with the inner rings of the two corresponding bearings 32, as the case may be.

The caster may be a universal caster or other caster structure, and is a well-known structure, and will not be described herein.

Above-mentioned first wheel lid 51 also can not set up, and the dustproof effect of this kind of structure is relatively poor, and above-mentioned first wheel lid 51 also can be dismantled with first spacer 5 and be connected, and concrete setting as the circumstances.

The second wheel cover 6 can be omitted, and the dustproof effect of the structure is poor and is set according to the situation.

There may also be a small gap, as the case may be, between the second wheel cover 6 and the adjacent inner race of the bearing 32.

The first recess 50 may not be provided, the inner ring of the bearing 32 is sleeved on the wheel axle 2, and the first spacer 5 abuts against the side wall of the inner ring of the bearing 32, as the case may be.

The quantity of above-mentioned gyro wheel 3 also can set up three, four or more, and above-mentioned first spacer 5 also can set up two, three or more, and first spacer 5 is located between two adjacent gyro wheels 3, sets up two or three gyro wheels 3 usually, can play fine stabilizing effect, and manufacturing cost is lower, specifically sets up according to the circumstances.

A wear-resistant ring can be sleeved on the wheel shaft 2 to better protect the wheel shaft 2, and the wear-resistant ring can be made of manganese steel materials or other materials and is specifically arranged according to the situation.

The fixing member 4 may be a nut, and the axle 2 and the fixing member 4 may have other structures, which are well known components and will not be described herein.

The working mode of the first embodiment is as follows:

when the roller 3 rolls, the two rollers 3 roll, so that the bearing capacity of the roller 3 and the rolling stability of the roller 3 are improved, the first spacer bush 5 and the second cover body respectively have axial supporting acting force on the bearing 32, so that the inner ring of the bearing 32 cannot move left and right, the roller 3 rolls more stably, and the service life of the bearing 32 is prolonged; when one roller 3 is damaged, other rollers 3 can be continuously used, and only the damaged roller 3 needs to be replaced during maintenance, so that the maintenance cost is reduced, and the roller is simple and practical. The inner ring of the bearing 32 can not move left and right, the roller 3 rolls more stably, and the service life of the bearing 32 is prolonged.

Example two:

referring to fig. 1 to 4, the difference between the second embodiment and the first embodiment is: in the second embodiment, the second spacer 7 is respectively sleeved at two ends of the wheel axle 2, one end of the second spacer 7 abuts against the inner ring of the adjacent bearing 32, the second spacer 7 is provided with the annular second concave portion 70, and the second concave portion 70 is inserted into the inner ring of the bearing 32.

The second spacer 7 may have a small clearance with the inner ring of the corresponding bearing 32, and may be provided as the case may be.

The second spacer 7 can be formed integrally with the axle 2, and the roller 3 of this structure cannot be detached, depending on the situation.

The second spacer 7 may be integrally formed with the second wheel cover 6, which is the first embodiment.

In the second embodiment, the second concave portion 70 may not be provided, the inner ring of the bearing 32 is sleeved and contacted with the wheel axle 2, and the second spacer 7 abuts against the side wall of the inner ring of the bearing 32, specifically according to the situation.

The utility model discloses a gyro wheel 3 not only limits to be used for the truckle, also can be used to other devices that have gyro wheel 3.

While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (9)

1. The utility model provides a truckle that roll stability is good which characterized in that: including the truckle main part, the truckle main part includes the support, wears to locate the shaft of support, at least two gyro wheels that rotationally wear to locate the shaft, the gyro wheel includes the wheel body, locates the bearing in the wheel body, the bearing inner race is connected in the wheel body.

2. The caster with good rolling stability as claimed in claim 1, wherein: a first spacer bush is arranged between every two adjacent bearings, the wheel shaft is sleeved with the first spacer bush, and two ends of the first spacer bush are respectively abutted against the inner rings of the two corresponding bearings or gaps exist between the two ends of the first spacer bush and the inner rings of the two corresponding bearings.

3. The caster with good rolling stability as claimed in claim 2, wherein: annular first concave parts are respectively arranged at two ends of the first spacer bush, and the first concave parts are inserted into the inner ring of the bearing.

4. The caster with good rolling stability as claimed in claim 2, wherein: and a first wheel cover is arranged on the first spacer bush, and two adjacent rollers are respectively covered on two sides of the first wheel cover.

5. The caster with good rolling stability as claimed in claim 1, wherein: and two ends of the wheel shaft are respectively sleeved with a second wheel cover, the second wheel cover covers the rollers, and the second wheel cover and the inner ring of the adjacent bearing are mutually abutted or have a gap.

6. The caster with good rolling stability as claimed in claim 1, wherein: the wheel shaft is fixed on the bracket through a fixing piece.

7. The caster with good rolling stability as claimed in claim 1, wherein: and two ends of the wheel shaft are respectively sleeved with a second spacer sleeve, and one end of each second spacer sleeve is abutted against the inner ring of the adjacent bearing or a gap exists between the two adjacent bearing.

8. The caster with good rolling stability as claimed in claim 7, wherein: and the second spacer is provided with an annular second concave part which is inserted into the inner ring of the bearing.

9. The caster with good rolling stability as claimed in claim 1, wherein: the wheel shaft is sleeved with a wear-resistant ring.

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