CN203856991U - Support device for guide wheel - Google Patents
Support device for guide wheel Download PDFInfo
- Publication number
- CN203856991U CN203856991U CN201420127541.6U CN201420127541U CN203856991U CN 203856991 U CN203856991 U CN 203856991U CN 201420127541 U CN201420127541 U CN 201420127541U CN 203856991 U CN203856991 U CN 203856991U
- Authority
- CN
- China
- Prior art keywords
- bearing
- central shaft
- sleeve
- support device
- wheel hub
- 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 support device for a guide wheel. The support device comprises a wheel hub (9), wherein a sleeve (1) is sheathed in the wheel hub (9), a center shaft (3) and a plurality of bearings (8) are arranged in the sleeve (1), the bearings (8) are sheathed on the center shaft (3), the center shaft (3) is of a bilateral symmetry structure, the two ends of the center shaft (3) are respectively provided with two step surfaces, one bearing (8) is respectively sheathed on two first-stage step surfaces (4) positioned at the inner side, and a locking screw nut (2) for tightly pressing the bearings (8) is respectively arranged on two second-stage steps (7) positioned at the outer side. The support device has the beneficial effects that the service life is long, the operation is flexible during the moving, the performance is reliable, the repair and the maintenance are easy, and the manufacturing cost and the repair cost are reduced.
Description
Technical field
The utility model relates to the bearing device of a kind of guide wheel device, particularly a kind of upper saw pulley.
Background technique
Upper saw pulley, for to soft pipeline or steel wire, the direction guiding in the linear object moving process of the softwares such as nylon rope.Upper saw pulley is with pulley structure, and in some project or product, upper saw pulley can play labour-saving effect.
Excavator guide pulley is at excavator in straight line moving process, and guide wheel shaft mainly bears radial effect power; When turning, walker active force makes guide wheel shaft produce certain axial thrust load, and radius of turn is less, axial thrust load is larger, and the direction of axial thrust load also changes with the change of turn direction, causes upper saw pulley bearing device often to damage, and when support device is repaired, the maintenance of upper saw pulley bearing device difficulty or ease, and maintenance rear support device is not long working life, has increased manufacture cost and maintenance cost.
Model utility content
The purpose of this utility model is to overcome the shortcoming of prior art, provides a kind of and goes slick, reliable performance, the bearing device of the upper saw pulley of maintenance for ease of maintenaince.
The purpose of this utility model is achieved through the following technical solutions: a kind of bearing device of upper saw pulley, and it comprises wheel hub, and in wheel hub, cover has sleeve, and central shaft and multiple bearing are housed in sleeve, and bearing housing is contained on central shaft.
Described central shaft is symmetrical structure, and the two ends of central shaft are equipped with two step surfaces, on the one-level step surface that two are positioned at inner side, is all respectively set with a bearing, in the two stage steps that two are positioned at outside, the locking nut of a compression bearing is all installed.
Described sleeve and wheel hub are transition fit.
Between described locking nut and bearing, seal washer is installed.
On the two stage steps face of described central shaft, offer outside thread.
The utlity model has following advantage: guide wheel device of the present utility model, there is long service life, when mobile, go slick, reliable performance, and for ease of maintenaince maintenance, reduced and manufactured cost and maintenance cost.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
The structural representation of axle centered by Fig. 2;
In figure, 1-sleeve, 2-locking nut, 3-central shaft, 4-one-level step surface, 5-seal washer, 6-outside thread, 7-two stage steps face, 8-bearing, 9-wheel hub.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described, protection domain of the present utility model is not limited to the following stated:
As shown in Figure 1, a kind of bearing device of upper saw pulley, it comprises wheel hub 9, and in wheel hub 9, cover has sleeve 1, and central shaft 3 and multiple bearing 8 are housed in sleeve 1, and bearing 8 is sleeved on central shaft 3.Central shaft 3 is symmetrical structure, central shaft 3 is provided with three step surfaces, the each suit in both sides one bearing 8 on one-level step surface 4, bearing 8 one end will withstand on step surface end face, in two stage steps, 7 both sides are provided with a locking nut 2, and on two stage steps face, 7 offer outside thread 6, between locking nut 2 and bearing 8, seal washer 5 are installed, seal washer 5 is plastic cement material, tightens locking nut 2 and is close to seal washer 5.
Claims (5)
1. a bearing device for upper saw pulley, it comprises wheel hub (9), it is characterized in that: in wheel hub (9), cover has sleeve (1), and central shaft (3) and multiple bearing (8) are housed in sleeve (1), and bearing (8) is sleeved on central shaft (3).
2. the bearing device of a kind of upper saw pulley according to claim 1, it is characterized in that: described central shaft (3) is symmetrical structure, the two ends of central shaft (3) are equipped with two step surfaces, on the one-level step surface (4) that two are positioned at inner side, be all respectively set with a bearing (8), in two two stage steps that are positioned at outside, (7) are all provided with the locking nut (2) of a compression bearing (8).
3. the bearing device of a kind of upper saw pulley according to claim 1, is characterized in that: described sleeve (1) is transition fit with wheel hub (9).
4. the bearing device of a kind of upper saw pulley according to claim 2, is characterized in that: between described locking nut (2) and bearing (8), seal washer (5) is installed.
5. the bearing device of a kind of upper saw pulley according to claim 2, is characterized in that: on the two stage steps face of described central shaft (3), (7) offer outside thread (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420127541.6U CN203856991U (en) | 2014-03-20 | 2014-03-20 | Support device for guide wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420127541.6U CN203856991U (en) | 2014-03-20 | 2014-03-20 | Support device for guide wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203856991U true CN203856991U (en) | 2014-10-01 |
Family
ID=51606842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420127541.6U Expired - Fee Related CN203856991U (en) | 2014-03-20 | 2014-03-20 | Support device for guide wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203856991U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103939546A (en) * | 2014-03-20 | 2014-07-23 | 成都丽元电器有限公司 | Supporting device for guiding wheel |
-
2014
- 2014-03-20 CN CN201420127541.6U patent/CN203856991U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103939546A (en) * | 2014-03-20 | 2014-07-23 | 成都丽元电器有限公司 | Supporting device for guiding wheel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141001 Termination date: 20150320 |
|
| EXPY | Termination of patent right or utility model |