CN214788647U

CN214788647U - Shaft-channeling-preventing device and rotating structure based on tightly-fixed sleeve type roller

Info

Publication number: CN214788647U
Application number: CN202120905848.4U
Authority: CN
Inventors: 赵国生; 裴文华; 刘伟; 王晓波; 孙斌辉; 易华; 卢洪涛; 张涛
Original assignee: Taicang Wugang Wharf Co ltd
Current assignee: Taicang Wugang Wharf Co ltd
Priority date: 2021-04-28
Filing date: 2021-04-28
Publication date: 2021-11-19
Anticipated expiration: 2031-04-28

Abstract

The utility model provides a prevent scurrying a device and rotating-structure based on tight cover formula cylinder which characterized in that, including retaining ring, bearing and with axle interference fit's bush, retaining ring, bearing and bush are located the bearing frame, and the bearing does not have the tapering and the tip of bearing is equipped with first shoulder to the periphery, bearing one end is equipped with the second shoulder, second shoulder and first shoulder phase-match, the bearing other end passes through the retaining ring fixedly. Because the bush has no taper, the retainer ring can not receive inclined component force in the rotating process, and the problem of looseness between the retainer ring and the bearing can not occur. The tip of bush is equipped with the shaft shoulder to inject the bearing between retaining ring and shaft shoulder, and reduce the atress of retaining ring through the shaft shoulder, make the difficult emergence wearing and tearing of retaining ring, effectively prevent to scurry the axle. The shaft-fleeing fault of the roller is effectively reduced, the process downtime caused by the shaft-fleeing fault of the roller is reduced, and the continuity of the process is ensured.

Description

Shaft-channeling-preventing device and rotating structure based on tightly-fixed sleeve type roller

Technical Field

The utility model belongs to the technical field of the machining technique and specifically relates to a prevent scurrying a device based on tight cover formula cylinder.

Background

In order to provide a better fit between the shaft and the bearing, the relationship between the shaft and the bearing is usually coordinated by using a adapter sleeve as an intermediate connecting component, and the adapter sleeve is used as a connecting component of the bearing and the roller and is suitable for mounting a taper hole (the taper is 1:12) bearing on a cylindrical shaft without a shaft shoulder, as shown in fig. 1. The fastening sleeve consists of a fastening bush, a locking nut, a locking washer (or a locking clamp) and other parts.

The main characteristic of the adapter sleeve mounting mode is that the mounting mode increases 2 joint surfaces: the shaft surface, the inner ring surface of the adapter sleeve, the outer conical surface of the adapter sleeve and the inner conical surface of the bearing prevent the adapter sleeve from loosening by using friction force. This form adapter sleeve stay buckle breaks easily, and lock nut appears becoming flexible under the slight vibration that the stay buckle breaks back can last for a long time in the cylinder operation process, and the adapter sleeve can't continue to lock on the cylinder axial plane, and the cylinder takes place to scurry the axle trouble at last under the combined action of external load.

The bearing and the shaft are in direct contact type shrink fit, the bearing and the shaft are in interference fit, and the bearing is directly installed on a cylindrical shaft with a shaft shoulder. The adapter sleeve is suitable for mounting a taper hole bearing on a cylindrical shaft without a shaft shoulder. The fastening sleeve consists of a fastening bush, a locking nut, a locking washer (or a locking clamp) and other parts. The locking nut and the locking washer are easy to loosen, so that the shaft-shifting fault of the roller is caused.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a prevent scurrying a device based on tightly decide shell type cylinder. The bearing not only can solve the matching problem of the shaft and the bearing, but also can effectively prevent the gasket from loosening, thereby having good anti-channeling effect.

The utility model provides a prevent scurrying a device based on tight fit sleeve formula cylinder, includes retaining ring, bearing and with axle interference fit's bush, retaining ring, bearing and bush are located the bearing frame, and the bearing does not have the tapering and the tip of bearing is equipped with first shoulder to the periphery, bearing one end is equipped with the second shoulder, second shoulder and first shoulder phase-match, the bearing other end passes through the retaining ring fixedly.

Further, the first shoulder is a convex part along the axial direction, and the second shoulder is a concave part along the axial direction.

Further, the bush is provided with a first thread, and the nut is matched with the first thread to fix the retainer ring.

Further, the bushing is provided with a positioning groove matched with the shaft.

Further, the bearing comprises an inner ring and an outer ring, and a rotor is arranged between the outer ring and the inner ring.

A rotating structure comprises a cylinder body, a shaft positioned in the cylinder body and an anti-channeling shaft device based on a tightly-fixed sleeve type cylinder, wherein the anti-channeling shaft device is arranged in a bearing seat, and the shaft is in interference fit with a bushing.

Adopt the technical scheme of the utility model, following technological effect has:

because the bush has no taper, the retainer ring can not receive inclined component force in the rotating process, and the problem of looseness between the retainer ring and the bearing can not occur. The tip of bush is equipped with the shaft shoulder to inject the bearing between retaining ring and shaft shoulder, and reduce the atress of retaining ring through the shaft shoulder, make the difficult emergence wearing and tearing of retaining ring, effectively prevent to scurry the axle. The shaft-fleeing fault of the roller is effectively reduced, the process downtime caused by the shaft-fleeing fault of the roller is reduced, and the continuity of the process is ensured.

Drawings

Fig. 1 is a schematic structural diagram of the prior art.

Fig. 2 is a schematic view of a rotating structure according to the first embodiment.

Fig. 3 is a schematic structural view of the anti-channeling device in accordance with the first embodiment.

The bearing comprises a retainer ring 1, a bearing 2, a shaft 3, a bushing 4, a first shaft shoulder 21, a second shaft shoulder 41, a first thread 42, a positioning groove 43, an inner ring 22, an outer ring 23, a rotor 24, a cylinder 5 and a bearing seat 6.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

The first embodiment is as follows:

it is to be noted that, in the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Meanwhile, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; the connection can be mechanical connection or electrical connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The utility model provides a prevent scurrying a device based on tight fit shell type cylinder, including retaining ring 1, bearing 2 and with 3 interference fit's of axle bush 4, retaining ring 1, bearing 2 and bush 3 are located bearing frame 6, bearing 2 does not have the tapering and the tip of bearing 2 is equipped with first shoulder 21 to the periphery, first shoulder 21 is along axial convex part, bush one end is equipped with second shoulder 41, second shoulder 41 is along axial concave part, second shoulder 41 and first shoulder 21 phase-match, the bearing other end passes through retaining ring 3 fixedly. It can be understood that the first shoulder and the second shoulder are not limited to the structure of the present embodiment, and other deformation structures also belong to the protection scope of the present invention. The bush 4 is provided with a first thread 42 and the nut cooperates with said first thread 42 to secure the collar, thereby confining the bearing 2 between the collar 1 and the second shoulder. The bush 4 is provided with a locating groove 43 for mating with the shaft and the bearing comprises an inner race 22 and an outer race 23 between which is located the rotor 24. When the shaft is mounted in the bush 4, the protrusions of the shaft match the grooves 43, and when the shaft rotates, the inner ring of the bearing 2 is rotated by the bush.

A rotating structure comprises a barrel body 5, a shaft positioned in the barrel body, and a shaft-fleeing prevention device based on a tightly-fixed sleeve type roller, wherein the shaft-fleeing prevention device is arranged in a bearing seat, and the shaft is in interference fit with a bushing.

because the bush has no taper, the retainer ring can not receive inclined component force in the rotating process, and the problem of looseness between the retainer ring and the bearing can not occur. The tip of bush is equipped with the shaft shoulder to inject the bearing between retaining ring and shaft shoulder, and reduce the atress of retaining ring through the shaft shoulder, make the difficult emergence wearing and tearing of retaining ring, effectively prevent to scurry the axle.

The utility model discloses can form through tightly deciding shell type cylinder secondary operation, overall dimension, mounting dimension are unchangeable, and the bearing frame model need not to change, and the mounting hole of cylinder installation base need not to change and just can install.

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 invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a prevent scurrying a device based on tight fit sleeve formula cylinder which characterized in that, including retaining ring, bearing and with axle interference fit's bush, retaining ring, bearing and bush are located the bearing frame, and the bearing does not have the tapering and the tip of bearing is equipped with first shoulder to the periphery, bearing one end is equipped with the second shoulder, second shoulder and first shoulder phase-match, the bearing other end passes through the retaining ring fixedly.

2. The tight-jacketed roller-based anti-channeling device according to claim 1, wherein the first shoulder is a convex portion in the axial direction and the second shoulder is a concave portion in the axial direction.

3. The tight-set barrel-based anti-channeling device according to claim 1, wherein said bushing is provided with a first thread and a nut is engaged with said first thread to secure the retainer ring.

4. The tight-set drum-based anti-channeling device according to claim 1, wherein said bushing is provided with a positioning groove that mates with the shaft.

5. The tight-fitting roller-based anti-channeling device as recited in claim 1, wherein said bearing comprises an inner race and an outer race with a rotor disposed therebetween.

6. A rotary structure comprising a cylinder, a shaft in the cylinder, and a shaft-play prevention device based on a tightly-set sleeve type roller according to any one of claims 1 to 4, wherein the shaft-play prevention device is disposed in a bearing housing, and the shaft is in interference fit with a bush.