CN219692042U - Fastening sleeve with stretching structure - Google Patents

Abstract

The utility model discloses a tight sleeve with an extension structure, which comprises a bushing, wherein a first opening is formed in the bushing, a second opening is formed in one side of the first opening, a gasket and a nut are arranged on the outer side of the bushing, a limiting mechanism is arranged on the inner wall of the first opening, the upper end of the limiting mechanism is attached to the outer side of the nut, an extension cylinder is arranged at one end of the bushing, which is far away from the nut, a positioning hole is formed in one end of the extension cylinder, which is close to the bushing, a through hole is formed in one side of the positioning hole, the through hole is communicated with the outer side of the extension cylinder, an installation cylinder is fixedly connected to one end of the bushing, which is close to the extension cylinder, the installation cylinder is inserted into the positioning hole, a bolt is sleeved in the through hole, and one end of the bolt is inserted into the installation cylinder.

Description

Fastening sleeve with stretching structure

Technical Field

The utility model relates to a tight sleeve with an extension structure, and belongs to the technical field of tight sleeves.

Background

The tightening sleeve is the most commonly used part of the bearing with the conical hole when being positioned on the cylindrical shaft, and consists of a tightening bushing, a locking nut, a locking washer (or a locking clamp) and other parts, and is used for fixing the conical hole aligning bearing (aligning ball bearing and aligning roller bearing) on the shaft without the shaft shoulder, and has the advantages of simple structure, reliable work, convenient bearing replacement and wide application in the industries of spinning, light industry, papermaking, metallurgy, belt transportation, conveying equipment and the like.

For some tight sleeves installed on the bearing seat, because the different specifications of the bearing seat, the lengths of the bearing seat are also different, some tight sleeves are shorter and cannot be normally installed on a longer bearing seat, and the proper tight sleeves are required to be customized.

Disclosure of Invention

The present utility model is directed to a locking sleeve with an extension structure, so as to solve the above-mentioned problems in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a tight sleeve with extending structure, includes the bush, first opening has been seted up on the bush, first opening one side is equipped with the second opening, the bush outside is equipped with packing ring and nut, be equipped with stop gear on the first opening inner wall, stop gear upper end and the laminating of nut outside, the one end that the nut was kept away from to the bush is equipped with the extension section of thick bamboo, the one end that the extension section of thick bamboo is close to the bush is equipped with the locating hole, locating hole one side is equipped with the through-hole, the through-hole communicates with the extension section of thick bamboo outside, the one end fixedly connected with installation section of thick bamboo that the bush is close to the extension section of thick bamboo, the installation section of thick bamboo is inserted and is established in the locating hole, the inside cover of through-hole is equipped with the bolt, bolt one end is inserted and is established in the installation section of thick bamboo.

Preferably, the stop gear includes installation piece, slot, spring and spacing post, installation piece fixed connection is on first opening lateral wall, the installation piece upper end is equipped with the slot, fixedly connected with spring in the slot, spring upper end fixedly connected with spacing post, spacing post bottom is inserted and is established in the slot, spacing post upper end and the laminating of nut outside, spacing post and spring all with slot looks adaptation.

Preferably, the bolt is in threaded connection with the through hole and the positioning hole, and the positioning hole is matched with the positioning groove.

Preferably, one end of the bolt positioned outside the extension cylinder is fixedly connected with a fixed block, and the fixed block is attached to the outer side wall of the extension cylinder.

Preferably, a third opening is arranged at the upper end of the extension cylinder, and the third opening corresponds to the second opening.

Compared with the prior art, the utility model has the beneficial effects that: through spacing post upper end and the laminating of nut outside to carry out spacingly to the nut, and then guarantee the locking effect of nut, simultaneously, can also extend the extension to the adapter sleeve, with the length that satisfies actual bearing frame, adaptability is stronger, need not purchase the adapter sleeve separately, reduce cost.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic cross-sectional view of the present utility model;

FIG. 3 is a schematic view of a limiting mechanism according to the present utility model;

fig. 4 is a schematic view of the structure of the extension tube of the present utility model.

In the figure: 1. a bushing; 2. a first opening; 3. a second opening; 4. a nut; 5. a gasket; 6. a limiting mechanism; 61. a mounting block; 62. a slot; 63. a spring; 64. a limit column; 7. an extension cylinder; 8. a third opening; 9. a mounting cylinder; 10. positioning holes; 11. a bolt; 12. a fixed block; 13. and a through hole.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, the present utility model provides a technical solution: the utility model provides a tight sleeve with extending structure, including bush 1, first opening 2 has been seted up on the bush 1, first opening 2 one side is equipped with second opening 3, the bush 1 outside is equipped with packing ring 5 and nut 4, be equipped with stop gear 6 on the first opening 2 inner wall, stop gear 6 upper end and the laminating of nut 4 outside, the one end that the bush 1 kept away from nut 4 is equipped with extension section of thick bamboo 7, the one end that extension section of thick bamboo 7 is close to bush 1 is equipped with locating hole 10, locating hole 10 one side is equipped with through-hole 13, through-hole 13 and extension section of thick bamboo 7 outside intercommunication, the one end fixedly connected with installation section of thick bamboo 9 that the bush 1 is close to extension section of thick bamboo 7, installation section of thick bamboo 9 is inserted and is established in locating hole 10, the inside cover of through-hole 13 is equipped with bolt 11, bolt 11 one end is inserted and is established in installation section of thick bamboo 9, laminating outside through spacing post 64 upper end and nut 4, thereby carry out spacingly to nut 4, and then guarantee the locking effect of nut 4, simultaneously, can also extend the extension to satisfy the length of actual bearing frame, the tight sleeve is stronger, the tight sleeve does not need to purchase separately, the cost is reduced.

The limiting mechanism 6 comprises a mounting block 61, a slot 62, a spring 63 and a limiting column 64, wherein the mounting block 61 is fixedly connected to the side wall of the first opening 2, the slot 62 is arranged at the upper end of the mounting block 61, the spring 63 is fixedly connected to the slot 62, the limiting column 64 is fixedly connected to the upper end of the spring 63, the bottom end of the limiting column 64 is inserted into the slot 62, the upper end of the limiting column 64 is attached to the outer side of the nut 4, the limiting column 64 and the spring 63 are both matched with the slot 62, and the upper end of the limiting column 64 is attached to the outer side of the nut 4 so as to limit the nut 4, and further the locking effect of the nut 4 is ensured; the bolt 11 is in threaded connection with the through hole 13 and the positioning hole 10, and the positioning hole 10 is matched with the positioning groove, so that the extension cylinder 7 is conveniently connected with the bushing 1; one end of the bolt 11 positioned outside the extension cylinder 7 is fixedly connected with a fixed block 12, the fixed block 12 is attached to the outer side wall of the extension cylinder 7, and a worker can conveniently rotate the bolt 11 through the fixed block 12, so that fewer exposed parts of the bolt 11 are prevented from being inconvenient to rotate; the upper end of the extension cylinder 7 is provided with a third opening 8, and the third opening 8 corresponds to the second opening 3, so that the normal use performance of the bushing 1 is ensured.

Specifically, when the nut 4 is used, the washer 5 and the nut 4 are firstly pressed down before being mounted on the bushing 1, the bottom end of the limit post 64 stretches into the slot 62, meanwhile, the limit post 64 extrudes the spring 63, then the washer 5 and the nut 4 are mounted on the bushing 1, finally, the limit post 64 is loosened, the limit post 64 returns to the initial position through the acting force of the spring 63, the upper end of the limit post 64 is attached to the outer side of the nut 4, and therefore the nut 4 is limited, and the locking effect of the nut 4 is guaranteed; when the length of the tight sleeve does not meet the length of the bearing seat, the extension cylinder 7 is connected with the bushing 1, the mounting cylinder 9 on one side of the bushing 1 is inserted into the positioning hole 10 on one side of the extension cylinder 7, the extension cylinder 7 is conveniently positioned, the bolt 11 is rotated through the fixing block 12, one end of the bolt 11, which is positioned in the through hole 13, can be gradually inserted into the mounting cylinder 9 and is in threaded connection with the mounting cylinder 9, and at the moment, the tight sleeve can be completely connected with the bushing 1, so that the tight sleeve can be extended and lengthened to meet the length of an actual bearing seat, the adaptability is stronger, the tight sleeve does not need to be purchased separately, and the cost is reduced.

In the description of the present utility model, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "another end," "upper," "one side," "top," "inner," "front," "center," "two ends," etc. indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," "third," "fourth," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby features defining "first," "second," "third," "fourth" may explicitly or implicitly include at least one such feature.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "configured," "connected," "secured," "screwed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other or in interaction with each other, unless explicitly defined otherwise, the meaning of the terms described above in this application will be understood by those of ordinary skill in the art in view of the specific circumstances.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein 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 (5)

1. The utility model provides a tight sleeve with extending structure, includes bush (1), first opening (2) have been seted up on bush (1), first opening (2) one side is equipped with second opening (3), bush (1) outside is equipped with packing ring (5) and nut (4), its characterized in that: be equipped with stop gear (6) on first opening (2) inner wall, stop gear (6) upper end and the laminating of nut (4) outside, the one end that nut (4) was kept away from to bush (1) is equipped with extension cylinder (7), the one end that extension cylinder (7) was close to bush (1) is equipped with locating hole (10), locating hole (10) one side is equipped with through-hole (13), through-hole (13) and extension cylinder (7) outside intercommunication, the one end fixedly connected with installation section of thick bamboo (9) that bush (1) was close to extension cylinder (7), installation section of thick bamboo (9) are inserted and are established in locating hole (10), the inside cover of through-hole (13) is equipped with bolt (11), bolt (11) one end is inserted and is established in installation section of thick bamboo (9).

2. A locking collar with extension structure as in claim 1 wherein: stop gear (6) are including installation piece (61), slot (62), spring (63) and spacing post (64), installation piece (61) fixed connection is on first opening (2) lateral wall, installation piece (61) upper end is equipped with slot (62), fixedly connected with spring (63) in slot (62), spring (63) upper end fixedly connected with spacing post (64), spacing post (64) bottom is inserted and is established in slot (62), spacing post (64) upper end and laminating in the nut (4) outside, spacing post (64) and spring (63) all with slot (62) looks adaptation.

3. A locking collar with extension structure as in claim 1 wherein: the bolt (11) is in threaded connection with the through hole (13) and the positioning hole (10), and the positioning hole (10) is matched with the positioning groove.

4. A locking collar with extension structure as in claim 1 wherein: one end of the bolt (11) positioned at the outer side of the extension cylinder (7) is fixedly connected with a fixed block (12), and the fixed block (12) is attached to the outer side wall of the extension cylinder (7).

5. A locking collar with extension structure as in claim 1 wherein: the upper end of the extension cylinder (7) is provided with a third opening (8), and the third opening (8) corresponds to the second opening (3).