CN203079248U - Rotary drum with bearings arranged inside - Google Patents
Rotary drum with bearings arranged inside Download PDFInfo
- Publication number
- CN203079248U CN203079248U CN 201320025269 CN201320025269U CN203079248U CN 203079248 U CN203079248 U CN 203079248U CN 201320025269 CN201320025269 CN 201320025269 CN 201320025269 U CN201320025269 U CN 201320025269U CN 203079248 U CN203079248 U CN 203079248U
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- Prior art keywords
- bearing
- right bearing
- rotary drum
- arranged inside
- bearing seat
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- Expired - Lifetime
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Abstract
The utility model discloses a rotary drum with bearings arranged inside. The rotary drum with the bearings arranged inside comprises drum skin, the left end and the right end of the drum skin are respectively welded with a left bearing seat and a right bearing seat, and the drum skin, the left bearing seat and the right bearing seat are of an integral structure to form a drum body. A left bearing and a right bearing are respectively arranged in the left bearing seat and the right bearing seat, a through shaft penetrates through the drum body, two ends of the through shaft are respectively and fixedly arranged inside the left bearing and the right bearing, the left bearing is a spherical roller bearing, the left bearing is in interference fit with the through shaft through an adapter sleeve, the right bearing is a cylindrical bore bearing, and the right bearing is in clearance fit with the through shaft. The rotary drum with the bearings arranged inside has the advantages that the structure is compact, the mounting dimension and the largest boundary dimension are both smaller than those of a rotary drum with external bearings of the same specification, the rotary drum with the bearings arranged inside is used under the condition that space is limited, cost can be lowered, when axial displacement happens, concentrated stress is removed, and the service life of the bearings and the service life of the rotary drum are guaranteed.
Description
Technical field
The utility model relates to a kind of belt feeder cylinder, relates in particular to a kind of bearing and places roller tube in-to-in cylinder.
Background technology
Along with belt conveyer wideling popularize and develop in the harbour industry, the colliery is just developed towards high-power, large conveying quantity, multiple discharge and multipaths conversion with belt conveyer, this just requires the belt conveyer compact conformation, each equipment and steel structure reduce oad and installation dimension satisfying as far as possible under the situation of operating needs, improve space availability ratio and cost-cutting.When two or the flexible charging gears of two above belt conveyers parallel, the head cylinder is positioned at same line of centers or distance is very near, flexible charging gear drive installation is on the head cylinder time, use the built-in bearing cylinder can guarantee width of walkway, service clearance, reduce the belt feeder spacing, thereby reduce machine room size, track girder size etc., but equal cost-cutting no matter from steel structure and civil engineering aspect, but do not have to realize the structure of this purpose now.
Summary of the invention
The purpose of this utility model is to overcome the defective of prior art, provides a kind of and farthest reduces parallel belt conveyer spacing by reducing the cylinder oad, improves the cylinder of a kind of built-in bearing of space availability ratio and cost-cutting.
The cylinder of a kind of built-in bearing of the present utility model, it comprises a skin, left side at described tube skin, right-hand member is welded with a left side respectively, the right bearing seat, described tube skin, a left side, the right bearing seat formation cylindrical shell that is structure as a whole, on a described left side, be separately installed with a left side in the right bearing seat, right bearing, the two ends that axis passes cylindrical shell and axis are separately fixed at a left side, in the right bearing, described left bearing be spherangular roller bearing and described left bearing by sleeve and described axis interference fit, right bearing is bearing with cylindrical bore and described right bearing and described axis free-running fit.
Advantage of the present utility model: compact conformation, installation dimension and maximum oad be all less than same model outboard bearing cylinder, and using under the condition of limited of space can cost-cutting, when longitudinal travel occurring, eliminates concentrated stress, guarantees bearing and cylinder life-span.
Description of drawings
Fig. 1 is the structural representation of the cylinder of a kind of built-in bearing of the present utility model;
Fig. 2 is the structural representation of the fixed end of cylinder shown in Figure 1;
Fig. 3 is the structural representation of the play end of cylinder shown in Figure 1.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is done to describe in detail.
The cylinder of a kind of built-in bearing of the present utility model as shown in drawings, it comprises a skin 1, left side at described tube skin, right-hand member is welded with a left side respectively, the right bearing seat, described tube skin, a left side, the right bearing seat formation cylindrical shell that is structure as a whole, on a described left side, be separately installed with a left side in the right bearing seat, right bearing 2,3, the two ends that axis 4 passes cylindrical shell and axis 4 are separately fixed at a left side, right bearing 2, in 3, described left bearing 2 is that spherangular roller bearing and described left bearing pass through sleeve 5 and described axis interference fit, and described right bearing 3 is bearing with cylindrical bore and described right bearing and described axis free-running fit.
Cylindrical shell rotates under the effect of adhesive tape friction force, because bearing seat is as a whole with the tube skin.Axle is an axis, and band sleeve one end is a fixed end, and the other end is the play end.With bandwidth B=2000mm, barrel dliameter D=832mm, the cylinder of diameter of axle d=240mm are example, and a side bearing is selected the 23152CAK/W33 spherangular roller bearing for use, sleeve H3152, the other end is selected the 22248CC/W33 bearing with cylindrical bore for use, when the temperature difference occurring, causes cylindrical shell and axle swell increment not simultaneously, by play end slide control longitudinal travel, solved of the influence of the error of frame, eliminated concentrated stress, guaranteed bearing and cylinder life-span the cylinder generation.
The principle of work of this device is as follows:
Belt feeder built-in bearing drum shaft is connected with supporting base 6-1,6-2 by end plate, and supporting base is connected with cylinder frame or computer room structure, plays a supportive role.When belt conveyer turned round, cylindrical shell rotated under the effect of adhesive tape friction force, because bearing seat is as a whole with the tube skin, cylindrical shell rotates with outside race, ball, sleeve one side is arranged because sleeve is locked, can reach interference fit.Axle is an axis, and band sleeve one end is a fixed end, and as shown in Figure 2, the other end is the play end, as shown in Figure 3.
When cylinder is heated inequality generation relative displacement owing to cylindrical shell and axle, can be by play end slip adjustment, residual stress relieving guarantees that the cylinder sympodium holds the life-span.In addition, because fixed end is selected spherangular roller bearing, this bearing can be regulated the end-play in the certain limit, and after factory adjusted, its end-play was about 1/3～1/2 initial radial play, is about 100um, axially is about 470um～480um.With barrel dliameter D=832mm, the cylinder of diameter of axle d=240mm is an example, suppose that cylindrical shell and axle maximum temperature difference are 20 ℃, linear expansion factor according to steel in " Code for design of steel structures " is 12 * 10-6/ ℃, under 20 ℃ of temperature difference, cylindrical shell is 240um with the longitudinal travel of axle, and expand with heat and contract with cold and can by bearing be absorbed owing to what the temperature difference caused this moment, can guarantee that also cylinder normally moves.
Claims (1)
1. the cylinder of a built-in bearing, it comprises a skin, it is characterized in that: on the left side of described tube skin, right-hand member is welded with a left side respectively, the right bearing seat, described tube skin, a left side, the right bearing seat formation cylindrical shell that is structure as a whole, on a described left side, be separately installed with a left side in the right bearing seat, right bearing, the two ends that axis passes cylindrical shell and axis are separately fixed at a left side, in the right bearing, described left bearing be spherangular roller bearing and described left bearing by sleeve and described axis interference fit, right bearing is bearing with cylindrical bore and described right bearing and described axis free-running fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320025269 CN203079248U (en) | 2013-01-17 | 2013-01-17 | Rotary drum with bearings arranged inside |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320025269 CN203079248U (en) | 2013-01-17 | 2013-01-17 | Rotary drum with bearings arranged inside |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203079248U true CN203079248U (en) | 2013-07-24 |
Family
ID=48825107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320025269 Expired - Lifetime CN203079248U (en) | 2013-01-17 | 2013-01-17 | Rotary drum with bearings arranged inside |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203079248U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105253574A (en) * | 2015-11-10 | 2016-01-20 | 于明珠 | Belt direction-changing roller capable of judging conditions of bearings through online shaft circling and application method of belt direction-changing roller |
| CN112313161A (en) * | 2018-06-27 | 2021-02-02 | 3M创新有限公司 | Kinematic idler roller |
-
2013
- 2013-01-17 CN CN 201320025269 patent/CN203079248U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105253574A (en) * | 2015-11-10 | 2016-01-20 | 于明珠 | Belt direction-changing roller capable of judging conditions of bearings through online shaft circling and application method of belt direction-changing roller |
| CN112313161A (en) * | 2018-06-27 | 2021-02-02 | 3M创新有限公司 | Kinematic idler roller |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130724 |