CN204947822U - A kind of self-lock electric push rod - Google Patents
A kind of self-lock electric push rod Download PDFInfo
- Publication number
- CN204947822U CN204947822U CN201520524263.2U CN201520524263U CN204947822U CN 204947822 U CN204947822 U CN 204947822U CN 201520524263 U CN201520524263 U CN 201520524263U CN 204947822 U CN204947822 U CN 204947822U
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- CN
- China
- Prior art keywords
- screw mandrel
- worm gear
- push rod
- transmission worm
- shell
- 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.)
- Ceased
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Abstract
A kind of self-lock electric push rod, comprise shell, motor, transmission worm gear, screw mandrel, screw rod lifting assembly, push rod, described motor is installed in shell, described motor is connected transmission worm gear, and drive transmission worm gear, described transmission worm gear set is loaded on screw mandrel, this screw mandrel is provided with screw rod lifting assembly, and lifting nut and the push rod of described screw rod lifting assembly are connected; The turbine wheel shaft of described transmission worm gear is rotatably mounted in shell by the first ball bearing, and the termination of described screw mandrel is rotatably mounted in shell by the second ball bearing; The termination of described screw mandrel is also equipped with a torsion spring.Owing to adopting above-mentioned structural design, be namely equipped with a torsion spring at the termination point casing of screw mandrel, utilize the principle that torsion spring is oppositely stressed, push rod is not glided automatically because of the bearing capacity of load, realizes auto-lock function, effectively improve the machine security of motor.
Description
Technical field
The utility model relates to electric pushrod technical field, especially a kind of self-lock electric push rod.
Background technology
Electric pushrod is a kind of linear actuating device, utilize screw nut driving, being the rectilinear motion of push rod by the converting rotary motion of motor, can be used for using, to realize far distance controlled, centralized control or automatically to control as performing machinery in various simple or complicated technological process.
Electric pushrod in the past mainly comprises shell, motor, driven by motor and rotate and suit and the transmission worm gear on screw mandrel, be installed on the screw rod lifting assembly on screw mandrel, the push rod be threaded with the lifting nut of screw rod lifting assembly, be arranged at the connector of push rod one end, the turbine wheel shaft of described transmission worm gear is rotatably mounted in shell by ball bearing, and the termination of described screw mandrel is rotatably mounted in shell by ball bearing; Machine operation drives transmission worm gear to rotate, thus drives screw mandrel to rotate, and screw mandrel orders about lifting nut and moves forward or backward, thus make pushrod advances or after move; The electric pushrod of said structure design, because the connector on push rod connects load, after push rod rises by motor, screw mandrel there will be by the bearing capacity of load the phenomenon automatically glided, and this can reduce the machine security of motor greatly.
Therefore, prior art needs to be improved and improves.
Summary of the invention
For the deficiencies in the prior art part, the purpose of this utility model is to provide a kind of effective self-lock electric push rod improving electromechanics safety.
For achieving the above object, the technical scheme that the utility model adopts is:
A kind of self-lock electric push rod, comprise shell, motor, transmission worm gear, screw mandrel, screw rod lifting assembly, push rod, described motor is installed in shell, described motor is connected transmission worm gear, and drive transmission worm gear, described transmission worm gear set is loaded on screw mandrel, this screw mandrel is provided with screw rod lifting assembly, and lifting nut and the push rod of described screw rod lifting assembly are connected; The turbine wheel shaft of described transmission worm gear is rotatably mounted in shell by the first ball bearing, and the termination of described screw mandrel is rotatably mounted in shell by the second ball bearing; The termination of described screw mandrel is also equipped with a torsion spring.
Compared with prior art, the beneficial effects of the utility model are: owing to adopting above-mentioned structural design, namely a torsion spring is equipped with at the termination point casing of screw mandrel, utilize the principle that torsion spring is oppositely stressed, push rod is not glided automatically because of the bearing capacity of load, realize auto-lock function, effectively improve the machine security of motor.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present utility model.
In figure, each label respectively: (1) shell, (2) motor, (3) transmission worm gear, (4) screw mandrel, (5) screw rod lifting assembly, (6) push rod, (8) first ball bearings, (9) termination, (10) torsion spring.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
Refer to Fig. 1, a kind of self-lock electric push rod of the utility model, comprise a kind of electric pushrod, comprise shell 1, motor 2, transmission worm gear 3, screw mandrel 4, screw rod lifting assembly 5, push rod 6, described motor 2 is installed in shell 1, and described motor 2 is connected transmission worm gear 3, and drive transmission worm gear 3, described transmission worm gear 3 is set on screw mandrel 4, and this screw mandrel 4 is provided with screw rod lifting assembly 5, and lifting nut and the push rod 6 of described screw rod lifting assembly 5 are connected; The turbine wheel shaft of described transmission worm gear 3 is rotatably mounted in shell 1 by the first ball bearing 8, and the termination of described screw mandrel 4 is rotatably mounted in shell 1 by the second ball bearing (not shown on figure); The termination of described screw mandrel 4 is also equipped with a torsion spring 10, the structural design of above, after push rod 6 rises, screw mandrel 4 glides automatically by the bearing capacity of load, owing to being nested with a torsion spring 4 in the termination of screw mandrel 4, the torsion of torsion spring 4, for offsetting the bearing capacity of load, realizes the function of motor self-locking, effectively improves electromechanics safety.
The above, it is only a kind of preferred embodiment of the utility model, not technical scope of the present utility model is imposed any restrictions, every embodiment is above done according to technical spirit of the present utility model any trickle amendment, equivalent variations and modification, all still belong in the scope of the utility model technology.
Claims (1)
1. a self-lock electric push rod, comprise shell, motor, transmission worm gear, screw mandrel, screw rod lifting assembly, push rod, it is characterized in that, described motor is installed in shell, described motor is connected transmission worm gear, and drives transmission worm gear, and described transmission worm gear set is loaded on screw mandrel, this screw mandrel is provided with screw rod lifting assembly, lifting nut and the push rod of described screw rod lifting assembly are connected; The turbine wheel shaft of described transmission worm gear is rotatably mounted in shell by the first ball bearing, and the termination of described screw mandrel is rotatably mounted in shell by the second ball bearing; The termination of described screw mandrel is also equipped with a torsion spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520524263.2U CN204947822U (en) | 2015-07-20 | 2015-07-20 | A kind of self-lock electric push rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520524263.2U CN204947822U (en) | 2015-07-20 | 2015-07-20 | A kind of self-lock electric push rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204947822U true CN204947822U (en) | 2016-01-06 |
Family
ID=55015211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520524263.2U Ceased CN204947822U (en) | 2015-07-20 | 2015-07-20 | A kind of self-lock electric push rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204947822U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107676445A (en) * | 2017-09-09 | 2018-02-09 | 浙江捷昌线性驱动科技股份有限公司 | A kind of electric pushrod |
| CN109194023A (en) * | 2018-09-03 | 2019-01-11 | 昌荣电机（深圳）有限公司 | A kind of electric pushrod |
| CN109477561A (en) * | 2016-07-28 | 2019-03-15 | 罗伯特·博世有限公司 | The driving mechanism and comfort driving device of comfort driving device for motor vehicle |
| CN111646387A (en) * | 2020-06-16 | 2020-09-11 | 山东建筑大学 | Rapid moving and mounting platform for standard knot of existing building quick-mounting steel structure elevator |
-
2015
- 2015-07-20 CN CN201520524263.2U patent/CN204947822U/en not_active Ceased
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109477561A (en) * | 2016-07-28 | 2019-03-15 | 罗伯特·博世有限公司 | The driving mechanism and comfort driving device of comfort driving device for motor vehicle |
| CN107676445A (en) * | 2017-09-09 | 2018-02-09 | 浙江捷昌线性驱动科技股份有限公司 | A kind of electric pushrod |
| CN109194023A (en) * | 2018-09-03 | 2019-01-11 | 昌荣电机（深圳）有限公司 | A kind of electric pushrod |
| CN109194023B (en) * | 2018-09-03 | 2020-08-25 | 昌荣电机（深圳）有限公司 | Electric push rod |
| CN111646387A (en) * | 2020-06-16 | 2020-09-11 | 山东建筑大学 | Rapid moving and mounting platform for standard knot of existing building quick-mounting steel structure elevator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| IW01 | Full invalidation of patent right | ||
| IW01 | Full invalidation of patent right |
Decision date of declaring invalidation: 20210202 Decision number of declaring invalidation: 48053 Granted publication date: 20160106 |