CN204344846U - Power screw rocker compensating gear - Google Patents
Power screw rocker compensating gear Download PDFInfo
- Publication number
- CN204344846U CN204344846U CN201420673762.3U CN201420673762U CN204344846U CN 204344846 U CN204344846 U CN 204344846U CN 201420673762 U CN201420673762 U CN 201420673762U CN 204344846 U CN204344846 U CN 204344846U
- Authority
- CN
- China
- Prior art keywords
- nut
- screw
- locking
- gear
- nut 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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- Transmission Devices (AREA)
- Gears, Cams (AREA)
Abstract
Power screw rocker compensating gear, comprises half-nut, screw mandrel, locking nut, cup spring, screw, locking gear, nut seat and driving key.Described two half-nuts are coordinated with screw mandrel by trapezoidal thread, cylindrical and nut seat form shaft hole matching, half-nut cylindrical and nut seat endoporus are provided with driving key, the cylindrical step of one of half-nut and nut seat end contact, two of half-nut is fitted by locking nut that it screws and nut seat; Described locking gear is fixed by screws on nut seat end face, and cup spring is arranged at locking gear endoporus, and cup spring one end is connected on screw, the other end is connected on locking gear; Described locking gear is meshed with the cylindrical gear teeth of locking nut, and screw thread, the screw of described locking nut and half-nut two are left hand thread structure with being threaded of nut seat.
Description
Technical field
The utility model relates to power screw rocker compensating gear in machine applications, belongs to mechanical transmission, is mainly used in the adjustment of screw nut driving gap and the compensation of screw-drive mechanism in machine driven system.
Background technique
In machine driven system, the adjustment of the screw nut driving gap of screw-drive mechanism with compensate, be adopt various artificial adjustment mode under machinery static state in the majority at present, can cross and realize almost not having of real-time dynamic compensation.
Summary of the invention
For better realizing the adjustment of screw nut driving gap and the compensation of mechanical spiral driving mechanism, the utility model provides a kind of power screw rocker compensating gear, and the dynamic clearance that this mechanism can realize drive lead screw and nut compensates.Self structure is compact, and screw nut driving is steadily reliable.
The technical solution of the utility model is: for mechanical spiral drive gap compensation mechanism, comprises one of half-nut, half-nut two, screw mandrel, locking nut, cup spring, screw, locking gear, nut seat and driving key.Described half-nut has two, its inner hole surface forms precision-fit, periphery and nut seat by trapezoidal thread and screw mandrel and forms shaft hole matching, described half-nut cylindrical and nut seat endoporus are provided with driving key, the cylindrical step of one of half-nut and nut seat end contact, the Excircle machining of half-nut two has the common accurate thread of closely-pitched, the inner hole thread of locking nut matches with the outside thread of half-nut two, and end face and the nut seat of locking nut fit.Described locking gear is fixed by screws on nut seat end face, locking gear is rotatable around screw, described cup spring is arranged at locking gear endoporus, its one end is connected on screw, the other end is connected on locking gear, and described locking gear is meshed with the cylindrical gear teeth of locking nut.Described locking nut is secondary is all designed to left hand thread structure with screw fit.
During application, cup spring is rolled tightly and assembles with pretightening force, locking gear produces rotating power and drives locking nut to rotate, locking nut drives two of half-nut to move axially, and the side laminating of one of screw mandrel and half-nut, fits with the opposite side of half-nut two, feed screw nut's auxiliary driving gapless, when after feed screw nut pair wearing and tearing, due to the pre-tightening tension effect of cup spring, feed screw nut's auxiliary air gap can be eliminated automatically.
Accompanying drawing explanation
Accompanying drawing 1 is power screw rocker compensating gear of the present utility model, and accompanying drawing 2 is power screw rocker compensating gear sectional views.
Embodiment
See accompanying drawing, the utility model provides a kind of mechanical spiral drive gap compensation mechanism, comprise one of half-nut 1, half-nut 22, screw mandrel 3, locking nut 4, cup spring 5, screw 6, locking gear 7, nut seat 8, driving key 9.
One of half-nut of described power screw rocker compensating gear 1 is matched with nut seat 8 by cylindrical and driving key 9 with 22 of half-nut, screw mandrel 3 and one of half-nut 1 and half-nut 22 internal thread match.
One of half-nut of described power screw rocker compensating gear 1 cylindrical step end face and nut seat 8 are fitted, and fit in the other end screwing locking nut 4 end face on 22 of half-nut and nut seat.
The locking gear 7 of described power screw rocker compensating gear is fixed on nut seat 8 end face by screw 6, locking gear 7 is rotatable around screw 6, described cup spring 5 is arranged at locking gear 7 endoporus, and its one end is connected on screw 6, the other end is connected on locking gear 7.
The locking gear 7 of described power screw rocker compensating gear is meshed with the cylindrical gear teeth of locking nut 4.
The locking nut 4 of described power screw rocker compensating gear with 22 of half-nut screw-thread fit be left hand thread structure, screw 6 is threaded to left hand thread structure with nut seat 8.
Claims (3)
1. power screw rocker compensating gear, it is characterized in that comprising one of half-nut, half-nut two, screw mandrel, locking nut, cup spring, screw, locking gear, nut seat and driving key, described half-nut has two, two described half-nuts are coordinated with screw mandrel by trapezoidal thread, cylindrical and nut seat form shaft hole matching, half-nut cylindrical and nut seat endoporus are provided with driving key, the cylindrical step of one of half-nut and nut seat end contact, two of half-nut is fitted by locking nut that it screws and nut seat.
2. power screw rocker compensating gear as claimed in claim 1, it is characterized in that in structure, locking gear is fixed by screws on nut seat end face, cup spring is arranged at locking gear endoporus, cup spring one end is connected on screw, the other end is connected on locking gear, and cup spring assembles with pretightening force.
3. power screw rocker compensating gear as claimed in claim 1, is characterized in that in structure, locking gear is meshed with the cylindrical gear teeth of locking nut, and screw thread, the screw of locking nut and half-nut two are left hand thread structure with being threaded of nut seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420673762.3U CN204344846U (en) | 2014-10-28 | 2014-10-28 | Power screw rocker compensating gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420673762.3U CN204344846U (en) | 2014-10-28 | 2014-10-28 | Power screw rocker compensating gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204344846U true CN204344846U (en) | 2015-05-20 |
Family
ID=53228117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420673762.3U Expired - Fee Related CN204344846U (en) | 2014-10-28 | 2014-10-28 | Power screw rocker compensating gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204344846U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110030352A (en) * | 2019-04-29 | 2019-07-19 | 杭州富阳孙氏机床有限公司 | A kind of machine tool ball screw and lathe |
-
2014
- 2014-10-28 CN CN201420673762.3U patent/CN204344846U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110030352A (en) * | 2019-04-29 | 2019-07-19 | 杭州富阳孙氏机床有限公司 | A kind of machine tool ball screw and lathe |
| CN110030352B (en) * | 2019-04-29 | 2020-12-22 | 杭州富阳孙氏机床有限公司 | Lathe ball and lathe |
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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: 20150520 Termination date: 20151028 |
|
| EXPY | Termination of patent right or utility model |