CN204089459U - The lifting column DC speed-reducing of band self-locking device - Google Patents
The lifting column DC speed-reducing of band self-locking device Download PDFInfo
- Publication number
- CN204089459U CN204089459U CN201420483157.XU CN201420483157U CN204089459U CN 204089459 U CN204089459 U CN 204089459U CN 201420483157 U CN201420483157 U CN 201420483157U CN 204089459 U CN204089459 U CN 204089459U
- Authority
- CN
- China
- Prior art keywords
- worm
- gear assembly
- locking device
- self
- torsion spring
- 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
Links
Abstract
The utility model discloses the DC speed-reducing of a kind of lifting column band self-locking device, comprise motor and transmission, transmission comprises Worm-gear assembly, worm screw and bolster, worm screw is arranged on motor so that motor drives worm screw to rotate, Worm-gear assembly and worm screw are meshed, Worm-gear assembly is sleeved on bolster, also comprise self-locking device, the friction sleeve that self-locking device comprises retaining torsion spring and is fixedly installed, retaining torsion spring is arranged in friction sleeve, and its outer wall matches with the inwall of friction sleeve, one end of retaining torsion spring is fixedly connected with Worm-gear assembly; When Worm-gear assembly has the trend of reverse rotation, retaining torsion spring is subject to deboost and expands the inwall phase CONTACT WITH FRICTION making its outer wall and friction sleeve outward.The utility model can realize auto-lock function well, is unlikely to because the past phenomenon declined appears in self-lock force deficiency when being parked in optional position in the loaded state to avoid jacking system.
Description
Technical field
The utility model relates to the DC speed-reducing of a kind of lifting column band self-locking device.
Background technology
At present, the Worm reduction motor of lifting column all needs certain self-lock force, and the self-lock force depending merely on worm and gear is inadequate, because reducing gear needs higher transmission efficiency, so worm and gear does not have complete self-lock ability, a set of self-locking device will be designed like this in reducing motor, ensure that jacking system in the loaded state with this, when being parked in optional position, be unlikely because the past phenomenon declined appears in self-lock force deficiency.
Summary of the invention
Technical problem to be solved in the utility model is the defect overcoming prior art, a kind of lifting column is provided to be with the DC speed-reducing of self-locking device, it can realize auto-lock function well, is unlikely to because the past phenomenon declined appears in self-lock force deficiency when being parked in optional position in the loaded state to avoid jacking system.
In order to solve the problems of the technologies described above, the technical solution of the utility model is: a kind of DC speed-reducing of lifting column band self-locking device, comprise motor and transmission, transmission comprises Worm-gear assembly, worm screw and bolster, worm screw is arranged on motor so that motor drives worm screw to rotate, Worm-gear assembly and worm screw are meshed, Worm-gear assembly is sleeved on bolster, also comprise self-locking device, the friction sleeve that self-locking device comprises retaining torsion spring and is fixedly installed, retaining torsion spring is arranged in friction sleeve, and its outer wall matches with the inwall of friction sleeve, one end of retaining torsion spring is fixedly connected with Worm-gear assembly, when Worm-gear assembly has the trend of reverse rotation, retaining torsion spring is subject to deboost and expands the inwall phase CONTACT WITH FRICTION making its outer wall and friction sleeve outward.
Further provide a kind of structure to support bolster and fixed friction cover, the DC speed-reducing of this lifting column band self-locking device also comprises housing, and described support shaft supports is on housing, and described friction sleeve is fixedly connected with housing.
After have employed technique scheme, when Worm-gear assembly reverse rotation, because retaining torsion spring is subject to deboost, retaining torsion spring is expanded outward self, owing to being equipped with friction sleeve outside retaining torsion spring, such retaining torsion spring and friction sleeve produce certain frictional force, make it in the loaded state, jacking system there will not be the phenomenon of decline, ensures that client normally uses.
Accompanying drawing explanation
Fig. 1 is the explosive view of the DC speed-reducing of lifting column of the present utility model band self-locking device;
Fig. 2 is the stereogram of the DC speed-reducing of lifting column of the present utility model band self-locking device;
Wherein, 1 is motor; 2 is Worm-gear assembly; 3 is worm screw; 4 is bolster; Back twist spring till 5; 6 is friction sleeve; 7 is housing.
Embodiment
In order to make content of the present utility model more easily be clearly understood, below according to specific embodiment also by reference to the accompanying drawings, the utility model is described in further detail.
As Fig. 1, shown in 2, a kind of DC speed-reducing of lifting column band self-locking device, comprise motor 1 and transmission, transmission comprises Worm-gear assembly 2, worm screw 3 and bolster 4, worm screw 3 is arranged on motor 1 so that motor 1 drives worm screw 3 to rotate, Worm-gear assembly 2 and worm screw 3 are meshed, Worm-gear assembly 2 is sleeved on bolster 4, also comprise self-locking device, the friction sleeve 6 that self-locking device comprises retaining torsion spring 5 and is fixedly installed, retaining torsion spring 5 is arranged in friction sleeve 6, and its outer wall matches with the inwall of friction sleeve 6, one end of retaining torsion spring 5 is fixedly connected with Worm-gear assembly 2, when Worm-gear assembly 2 has the trend of reverse rotation, retaining torsion spring 5 is subject to deboost and expands the inwall phase CONTACT WITH FRICTION making its outer wall and friction sleeve 6 outward.
As shown in Figure 1, 2, the DC speed-reducing of lifting column band self-locking device also comprises housing 7, and bolster 4 is bearing on housing 7, and friction sleeve 6 is fixedly connected with housing 7.
Operation principle of the present utility model is as follows:
When Worm-gear assembly 2 reverse rotation, because retaining torsion spring 5 is subject to deboost, retaining torsion spring 5 is expanded outward self, owing to being equipped with friction sleeve 6 outside retaining torsion spring 5, such retaining torsion spring 5 and friction sleeve 6 produce certain frictional force, make it in the loaded state, jacking system there will not be the phenomenon of decline, ensures that client normally uses.
Above-described specific embodiment; technical problem, technical scheme and beneficial effect that the utility model solves are further described; be understood that; the foregoing is only specific embodiment of the utility model; be not limited to the utility model; all within spirit of the present utility model and principle, any amendment made, equivalent replacement, improvement etc., all should be included within protection range of the present utility model.
Claims (2)
1. the lifting column DC speed-reducing being with self-locking device, comprise motor (1) and transmission, transmission comprises Worm-gear assembly (2), worm screw (3) and bolster (4), it is upper so that motor (1) driving worm screw (3) rotation that worm screw (3) is arranged on motor (1), Worm-gear assembly (2) and worm screw (3) are meshed, Worm-gear assembly (2) is sleeved on bolster (4), it is characterized in that: also comprise self-locking device, the friction sleeve (6) that self-locking device comprises retaining torsion spring (5) and is fixedly installed, retaining torsion spring (5) is arranged in friction sleeve (6), and its outer wall matches with the inwall of friction sleeve (6), one end of retaining torsion spring (5) is fixedly connected with Worm-gear assembly (2), when Worm-gear assembly (2) has the trend of reverse rotation, retaining torsion spring (5) is subject to deboost and expands the inwall phase CONTACT WITH FRICTION making its outer wall and friction sleeve (6) outward.
2. the DC speed-reducing of lifting column band self-locking device according to claim 1, it is characterized in that: also comprise housing (7), described bolster (4) is bearing on housing (7), and described friction sleeve (6) is fixedly connected with housing (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420483157.XU CN204089459U (en) | 2014-08-25 | 2014-08-25 | The lifting column DC speed-reducing of band self-locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420483157.XU CN204089459U (en) | 2014-08-25 | 2014-08-25 | The lifting column DC speed-reducing of band self-locking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204089459U true CN204089459U (en) | 2015-01-07 |
Family
ID=52182127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420483157.XU Expired - Fee Related CN204089459U (en) | 2014-08-25 | 2014-08-25 | The lifting column DC speed-reducing of band self-locking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204089459U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105207404A (en) * | 2015-10-16 | 2015-12-30 | 常州市凯迪电器有限公司 | Electric push rod |
-
2014
- 2014-08-25 CN CN201420483157.XU patent/CN204089459U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105207404A (en) * | 2015-10-16 | 2015-12-30 | 常州市凯迪电器有限公司 | Electric push rod |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104864040B (en) | A kind of planet cycloid gear reduction unit | |
| CN105207404B (en) | A kind of electric pushrod | |
| CN205026063U (en) | Planetary gear reducer | |
| CN203728407U (en) | Hanger for stator iron core of motor | |
| CN204089459U (en) | The lifting column DC speed-reducing of band self-locking device | |
| CN103653750A (en) | Novel light lifting adjusting mechanism | |
| CN104373511B (en) | A kind of large diameter combined support raceway worm type of reduction gearing | |
| CN203102665U (en) | Turnover frame for automobile engine for teaching | |
| CN102252086A (en) | Planetary speed reducer capable of reducing transmission friction heating | |
| CN204114057U (en) | A kind of trailing wheel differential attachment based on unilateral bearing | |
| CN203450722U (en) | Speed reduction rolling barrel | |
| CN204251262U (en) | Torque limiting and ratchet brake assembly structure | |
| CN204056018U (en) | A kind of screw type vehicle turning support | |
| CN202659815U (en) | Bidirectional brake planetary gear box | |
| CN202997810U (en) | Speed reduction electromotor | |
| CN206530654U (en) | Efficient reduction gear on starter | |
| CN203903901U (en) | Height changing portable elevator | |
| CN202251736U (en) | Planet speed reducer for horizontal tubular submersible pump | |
| CN202550793U (en) | Bidirectional brake planet gearbox | |
| CN203718162U (en) | Sliding support for process pipeline | |
| CN205978283U (en) | Crank axle speed reducer | |
| CN204294349U (en) | A kind of spiral classifier | |
| CN203581081U (en) | Automotive full-circle steering mechanism | |
| CN203463627U (en) | Split planet carrier of winch | |
| CN203272730U (en) | Worm reduction gear unit for motor |
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: 20150107 Termination date: 20170825 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |