CN201102801Y - Non-return supporting roller - Google Patents
Non-return supporting roller Download PDFInfo
- Publication number
- CN201102801Y CN201102801Y CNU2007201022944U CN200720102294U CN201102801Y CN 201102801 Y CN201102801 Y CN 201102801Y CN U2007201022944 U CNU2007201022944 U CN U2007201022944U CN 200720102294 U CN200720102294 U CN 200720102294U CN 201102801 Y CN201102801 Y CN 201102801Y
- Authority
- CN
- China
- Prior art keywords
- roller
- steel ball
- sliding tray
- internal tooth
- bearing seat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a non-return roller used for a belt conveyor, comprising a roller axle, a bearing, a bearing base, a sealing component and a roller skin fixed with the bearing base. The improvement of the utility model is that the roller axle is sleeved with an inner geared sleeve; the inner geared sleeve is fixedly connected with the lateral side of the bearing base; the roller axle corresponding to the inner geared sleeve is provided with a steel ball sliding groove with long and short bottom margins. A steel ball is arranged in the groove. The diameter of the steel ball is smaller than or equal to the length of the short side of the bottom margin of the sliding groove. Owing to only making a small change based on the original roller, so the non-return roller has the advantages of simple structure, saving raw material, easy production and convenient maintenance. When the conveyor belt of the belt conveyor is broken, the roller can be stopped quickly, so the downslide of the conveyor belt can be stopped rapidly and the safety of the belt conveyor can be enhanced.
Description
Technical field
The utility model relates to the carrying roller that uses on a kind of band conveyor, specifically a kind of Non-return idler.
Background technology
The carrying roller that band conveyor is used is passive rotation.In the prior art, it is formed by roller carrier shaft, bearing, bearing seat, sealing member and with the affixed carrying roller skin of bearing seat, can rotate by positive and negative both direction.Use the belt transporter of two-way rotation carrying roller, inclined shaft under being used for mine is during toward aboveground fortune coal, belt is in case fracture, carrying roller that can two-way rotation can carry out retrograde rotation with belt, can not stop the downslide of belt under its self-gravity action of fracture, and the belt and the coal cinder that glide can stop up pit shaft, even destroy equipment and facility in the pit shaft.
The utility model content
The purpose of this utility model just provides the Non-return idler that a kind of band conveyor is used.With when belt ruptures, retrograde rotation does not take place in this Non-return idler, and then prevents that by the huge friction force that is produced between each carrying roller surface and belt the belt that ruptures from gliding, thereby avoids the generation of accident.
The utility model is achieved in that this Non-return idler comprises that roller carrier shaft, bearing, bearing seat, sealing member reach and the affixed carrying roller skin of bearing seat, institute's improvements are to be set with an internal tooth casing on roller carrier shaft, the internal tooth casing and the bearing seat outside are affixed, with the cooresponding roller carrier shaft of internal tooth casing on have steel ball sliding tray with long and short base, place steel ball in the groove, the diameter of steel ball is less than or equal to the length of short sides in the sliding tray base.
Adopt this structure, bearing seat and affixed thereon internal tooth casing rotate in the same way with the rotation of carrying roller, and roller carrier shaft maintains static.During installation, make the steel ball sliding tray on the roller carrier shaft be in downward position.Like this, the steel ball in the sliding tray is in the outer rim of sliding tray all the time under the self gravitation effect.When carrying roller was rotated in the forward, the internal tooth casing that is fixed on the bearing seat also was rotated in the forward with bearing seat, and steel ball is dialled minor face one side to sliding tray.Because the diameter of steel ball is less than or equal to length of short sides in the sliding tray base, steel ball has sufficient rotation space herein, and can not influence the normal forward rotation of internal tooth casing and carrying roller skin.In case when the load-transfer device crack conditions took place, load-transfer device can produce the downslide application force under the deadweight effect, make carrying roller generation backwards rotation.This moment, internal tooth casing was also under the drive of bearing seat, with the carrying roller backwards rotation, and steel ball stirred along the long limit of sliding tray, made it to exceed the axial plane of roller carrier shaft.Because insert space is narrow and small, steel ball promptly is stuck between the internal tooth of roller carrier shaft and internal tooth casing, and the locking internal tooth casing makes it and can not be rotated further.Stoped thus and the affixed bearing seat of internal tooth casing and the retrograde rotation of carrying roller skin, whole carrying roller is stopped operating, load-transfer device stops gliding, and then has avoided the more generation of serious accident.
The utility model has been owing to only done very little change on original carrying roller basis, therefore have simple in structure, save raw MAT'L, be easy to advantages such as processing and fabricating and convenient for maintaining.When in a single day fracture takes place in the load-transfer device of band conveyor, can make the carrying roller fast cut-off, thereby stop the downslide of load-transfer device rapidly, improved the safety in utilization of band conveyor.
Description of drawings
Fig. 1, Fig. 2 are structural representations of the present utility model, and wherein, Fig. 1 is that the A-A of Fig. 2 is to view.
The specific embodiment
As shown in Figure 2, this Non-return idler is except that comprising that still original roller carrier shaft 3, bearing 6, bearing seat 7, sealing member 8 reach the carrying roller skin 1 that welds with bearing seat, also are set with internal tooth casing 2 on roller carrier shaft 3.The tooth top of internal tooth casing 2 and the outer rim of roller carrier shaft have certain running clearance, a side end face of internal tooth casing 2 and bearing seat 7 outside end face welding.And have steel ball sliding tray 4 on the internal tooth casing 2 cooresponding roller carrier shafts 3, place steel ball 5 in the sliding tray, two bases of sliding tray 4 are divided into long limit and minor face, the diameter of steel ball 5 is less than or equal to the length of short sides in sliding tray 4 bases, but at least should be greater than the running clearance of the outer intermarginal existence of the tooth top of internal tooth casing 2 and roller carrier shaft, to guarantee that steel ball 5 only slides in sliding tray.
As shown in Figure 1, in order to accelerate the check of carrying roller, preferably making the long and short two base angles of sliding tray 4 is 90 °, and the diameter of steel ball 5 equals the length of short sides in sliding tray 4 bases.Like this, when the beginning of carrying roller in backwards rotation, the tooth top of its internal tooth casing 2 can be allocated to steel ball position shown in the dotted line among Fig. 1, makes it to exceed the axial plane of roller carrier shaft, stops the retrograde rotation of carrying roller, thereby reaches the effect that is close to the zero degree check.
Claims (2)
1, a kind of Non-return idler, comprise that roller carrier shaft (3), bearing (6), bearing seat (7), sealing member (8) reach and the affixed carrying roller skin (1) of bearing seat, it is characterized in that on roller carrier shaft (3), being set with an internal tooth casing (2), internal tooth casing and bearing seat (7) outside is affixed, with the cooresponding roller carrier shaft of internal tooth casing (2) (3) on have steel ball sliding tray (4) with long and short base, place steel ball (5) in the groove, the diameter of steel ball (5) is less than or equal to the length of short sides in sliding tray (4) base.
2, Non-return idler according to claim 1 is characterized in that the long and short two base angles of sliding tray (4) are 90 °, and the diameter of steel ball (5) equals length of short sides in sliding tray (4) base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201022944U CN201102801Y (en) | 2007-08-21 | 2007-08-21 | Non-return supporting roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201022944U CN201102801Y (en) | 2007-08-21 | 2007-08-21 | Non-return supporting roller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201102801Y true CN201102801Y (en) | 2008-08-20 |
Family
ID=39949823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201022944U Expired - Fee Related CN201102801Y (en) | 2007-08-21 | 2007-08-21 | Non-return supporting roller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201102801Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105800242A (en) * | 2016-05-27 | 2016-07-27 | 余苏祥 | Maneuvering type roller way conveying mechanism for conveying |
| CN105947586A (en) * | 2016-05-27 | 2016-09-21 | 余苏祥 | Roller way conveying device |
| CN105947587A (en) * | 2016-05-27 | 2016-09-21 | 余苏祥 | Maneuvering roller way conveying device for transmission |
-
2007
- 2007-08-21 CN CNU2007201022944U patent/CN201102801Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105800242A (en) * | 2016-05-27 | 2016-07-27 | 余苏祥 | Maneuvering type roller way conveying mechanism for conveying |
| CN105947586A (en) * | 2016-05-27 | 2016-09-21 | 余苏祥 | Roller way conveying device |
| CN105947587A (en) * | 2016-05-27 | 2016-09-21 | 余苏祥 | Maneuvering roller way conveying device for transmission |
| CN105800242B (en) * | 2016-05-27 | 2018-07-10 | 楼碧云 | A kind of motor driven roller conveyor structure for transmission |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080820 Termination date: 20090921 |