CN202780707U - Cam tower type rotor mechanism for graduator - Google Patents
Cam tower type rotor mechanism for graduator Download PDFInfo
- Publication number
- CN202780707U CN202780707U CN201220445418.XU CN201220445418U CN202780707U CN 202780707 U CN202780707 U CN 202780707U CN 201220445418 U CN201220445418 U CN 201220445418U CN 202780707 U CN202780707 U CN 202780707U
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- China
- Prior art keywords
- fixed axis
- tower
- cam
- rotor mechanism
- type rotor
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- 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 - Lifetime
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model relates to a tower type rotor mechanism, and in particular to a cam tower type rotor mechanism for a graduator. The cam tower type rotor mechanism comprises a fixing shaft; a needle roller bearing is sleeved at the middle part of the fixing shaft; a cam is fixedly arranged on the outer side wall of the fixing shaft; a tower type rotor shaft is sleeved at the upper end of the fixing shaft; a flange is arranged at the bottom end of the fixing shaft and clings to the fixing shaft; and a fixing flange is fixedly arranged at the upper part of the fixing shaft. The cam tower type rotor mechanism for the graduator has the advantages of compact structure, high precision and good sealing performance.
Description
Technical field
The utility model is a kind of tower rotor mechanism, particularly the tower rotor mechanism of a kind of cam for protractor.
Background technology
Structure relative complex in the protractor of the prior art, and service precision is lower, and result of use is relatively relatively poor.
Chinese patent 97208925.X discloses a kind of protractor, comprises worm screw, worm gear and indexing mechanism; Described indexing mechanism is connected with worm screw is coaxial; Described worm and wheel engagement connects.This structure result of use is relatively relatively poor, and precision is less simultaneously, and sealing is poor.
Summary of the invention
The utility model mainly is to solve the deficiencies in the prior art, compact conformation, and improve performance accuracy, the tower rotor mechanism of cam that is used for protractor of simultaneously lift-off seal.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals:
The tower rotor mechanism of a kind of cam for protractor, comprise fixed axis, the middle-end cover of described fixed axis has needle bearing, the lateral wall of described fixed axis is provided with the cam that fixes with it, the upper end cover of described fixed axis has tower armature spindle, the bottom of described fixed axis is provided with flange, and described flange and fixed axis fit, and the top of described fixed axis is provided with the mounting flange that fixes with it.
As preferably, be provided with lower bearing between described needle bearing and fixed axis, be provided with upper bearing (metal) between described fixed axis and tower armature spindle.
As preferably, be provided with packing ring between the below of described upper bearing (metal) and tower armature spindle.
As preferably, the lower end lateral wall of described fixed axis is provided with the O type circle that is halved together with it, seal mutually by oil sealing between described mounting flange and tower armature spindle, described needle bearing is by the crimping of hold-down nut phase, and described hold-down nut and fixed axis socket-connect.
Therefore, the tower rotor mechanism of cam that is used for protractor that the utility model provides, compact conformation, precision is high, good airproof performance.
Description of drawings
Fig. 1 is structural representation of the present utility model.
The specific embodiment
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment: as shown in Figure 1, the tower rotor mechanism of a kind of cam for protractor, comprise fixed axis 1, the middle-end cover of described fixed axis 1 has needle bearing 2, the lateral wall of described fixed axis 1 is provided with the cam 3 that fixes with it, and the upper end cover of described fixed axis 1 has tower armature spindle 4, and the bottom of described fixed axis 1 is provided with flange 5, described flange 5 fits with fixed axis 1, and the top of described fixed axis 1 is provided with the mounting flange 6 that fixes with it.1 of described needle bearing 2 and fixed axis are provided with lower bearing 7, and 4 of described fixed axis 1 and tower armature spindles are provided with upper bearing (metal) 8.4 of the below of described upper bearing (metal) 8 and tower armature spindles are provided with packing ring 9.The lower end lateral wall of described fixed axis 1 is provided with the O type circle 10 that is halved together with it, described mounting flange 6 passes through oil sealing 11 with 4 of tower armature spindles and seals mutually, described needle bearing 2 is by hold-down nut 12 phase crimping, and described hold-down nut 12 socket-connects with fixed axis 1.
Claims (4)
1. tower rotor mechanism of cam that is used for protractor, it is characterized in that: comprise fixed axis (1), the middle-end cover of described fixed axis (1) has needle bearing (2), the lateral wall of described fixed axis (1) is provided with the cam (3) that fixes with it, the upper end cover of described fixed axis (1) has tower armature spindle (4), the bottom of described fixed axis (1) is provided with flange (5), described flange (5) fits with fixed axis (1), and the top of described fixed axis (1) is provided with the mounting flange (6) that fixes with it.
2. the tower rotor mechanism of the cam for protractor according to claim 1, it is characterized in that: be provided with lower bearing (7) between described needle bearing (2) and fixed axis (1), be provided with upper bearing (metal) (8) between described fixed axis (1) and tower armature spindle (4).
3. the tower rotor mechanism of the cam for protractor according to claim 2 is characterized in that: be provided with packing ring (9) between the below of described upper bearing (metal) (8) and tower armature spindle (4).
4. according to claim 1 and 2 or the tower rotor mechanism of 3 described cams for protractor, it is characterized in that: the lower end lateral wall of described fixed axis (1) is provided with the O type circle (10) that is halved together with it, seal mutually by oil sealing (11) between described mounting flange (6) and tower armature spindle (4), described needle bearing (2) is by hold-down nut (12) phase crimping, and described hold-down nut (12) socket-connects with fixed axis (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220445418.XU CN202780707U (en) | 2012-09-04 | 2012-09-04 | Cam tower type rotor mechanism for graduator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220445418.XU CN202780707U (en) | 2012-09-04 | 2012-09-04 | Cam tower type rotor mechanism for graduator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202780707U true CN202780707U (en) | 2013-03-13 |
Family
ID=47808045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220445418.XU Expired - Lifetime CN202780707U (en) | 2012-09-04 | 2012-09-04 | Cam tower type rotor mechanism for graduator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202780707U (en) |
-
2012
- 2012-09-04 CN CN201220445418.XU patent/CN202780707U/en not_active Expired - Lifetime
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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 |
Granted publication date: 20130313 |
|
| CX01 | Expiry of patent term |