CN2793441Y - Automatic overload protector of motor - Google Patents
Automatic overload protector of motor Download PDFInfo
- Publication number
- CN2793441Y CN2793441Y CN 200520070589 CN200520070589U CN2793441Y CN 2793441 Y CN2793441 Y CN 2793441Y CN 200520070589 CN200520070589 CN 200520070589 CN 200520070589 U CN200520070589 U CN 200520070589U CN 2793441 Y CN2793441 Y CN 2793441Y
- Authority
- CN
- China
- Prior art keywords
- jaw clutch
- transmission shaft
- spring
- motor
- load
- 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 - Lifetime
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- Mechanical Operated Clutches (AREA)
Abstract
The utility model relates to an automatic overload protector of motors, which is composed of clutches which are in the type that an upper and a lower teeth are embedded and are sheathed on a rotary shaft, and an adjusting mechanism which is fixed on the rotary shaft. The upper tooth embedded clutch is coaxially fixed on a load gearwheel ring, the lower tooth embedded clutch is circumferentially fixed on the rotary shaft and can axially move along the rotary shaft, and the adjusting mechanism can realize the rotary shaft driving the load on the basis of spring force driving the lower tooth embedded clutch to be engaged with the upper tooth embedded clutch. When the load gearwheel ring is blocked, the upper tooth embedded clutch can be separated and push the lower tooth embedded clutch to downwards move, and the adjusting mechanism can absorb the lower tooth embedded clutch on the basis of spring compression. The adjusting mechanism is orderly composed of a spring and a spring centering sleeve which are sheathed on the rotary shaft, an adjusting rod which is positioned at the end of the rotary shaft and adjusting screws, one end of the spring is supported on the spring centering sleeve, and the other end is supported on the lower tooth embedded clutch. A motor transmission shaft of the utility model can automatically separate from the load when the transmission load is blocked so as to protect the motor.
Description
Technical field
The utility model relates to the electric-motor-driving overload protection arrangement, particularly relates to a kind of Self-protective device of motor drive overload that can make motor transmission shaft break away from load when driven loads is obstructed, thus the protection motor.
Technical background
Motor is usually run into load based on the transmission shaft transmission and is obstructed in the prior art; at this moment, except that causing the motor safety pin cut off, even the serious accident that motor shaft is cut off can take place; therefore how making motor transmission shaft break away from driven loads under situation is obstructed in load, is the key of protection motor.
Summary of the invention
In order to remedy above deficiency, the utility model provides a kind of Self-protective device of motor drive overload, can be under driven loads be obstructed situation, and motor and motor transmission shaft can break away from load automatically, thus the protection motor.
The technical solution of the utility model is such:
Self-protective device of motor drive overload; be installed between motor transmission shaft and the load gear ring; it is by the last jaw clutch and the following jaw clutch of the relative engagement that is set in this transmission shaft; this time jaw clutch is fixed in the controlling mechanism composition of this transmission shaft relatively; should go up jaw clutch and coaxial fixing and movable this transmission shaft that is set in of load gear ring; this time jaw clutch circumferentially is fixed in this transmission shaft and axially can slides along this transmission shaft; this controlling mechanism can drive this time jaw clutch based on spring force and be engaged in jaw clutch on this; realize that this transmission shaft normally drives the load gear ring and rotates; simultaneously when the load gear ring is obstructed should on jaw clutch can break away from and promote this time jaw clutch and move down, thereby this controlling mechanism can absorb this time jaw clutch based on length of spring compressed.
As further improvement of the utility model, this controlling mechanism by spring that is set in this transmission shaft successively and spring centring sleeve, this spring centring sleeve can be positioned this transmission shaft arbitrarily and be fixed in the adjustable lever of this transmission shaft end and the adjusting screw of cooperation is formed, this spring one end is supported in this spring centring sleeve anchor ring and the other end is supported in this time jaw clutch anchor ring.
As further improvement of the utility model, this time jaw clutch inner ring surface axially is provided with a groove at least, to should this transmission shafts of groove to being convexly equipped with a strip convex part that can snap in this groove, be convenient to this time jaw clutch and axially can slide and circumferentially can be fixed in this transmission shaft along this transmission shaft based on this groove and this protuberance.
The beneficial effects of the utility model:
Because last jaw clutch is fixed on the load gear ring, following jaw clutch circumferentially is fixed on motor transmission shaft, and axially can move along motor transmission shaft, under the driving of the spring force of this controlling mechanism, this time jaw clutch fits to jaw clutch, has realized the normal driven loads of motor.
When the load generation of being obstructed, and the jaw clutch rotational resistance is during greater than the spring force of controlling mechanism, and last jaw clutch promotes down that jaw clutch moves down; upper and lower jaw clutch separates, and at this moment, gear stops the rotation; but motor still rotates, the protection motor.
Description of drawings
Fig. 1 is an example structure schematic representation of the present utility model;
Fig. 2 is the local structure for amplifying schematic representation of A among Fig. 1.
Specific embodiment
Self-protective device of motor drive overload; be installed between motor 10 transmission shafts 3 and the load gear ring; it is by the last jaw clutch 1 and the following jaw clutch 2 of the relative engagement that is set in this transmission shaft; this time jaw clutch is fixed in the controlling mechanism composition of this transmission shaft relatively; should go up jaw clutch and coaxial fixing and movable this transmission shaft that is set in of load gear ring; this time jaw clutch circumferentially is fixed in this transmission shaft and axially can slides along this transmission shaft; this controlling mechanism can drive this time jaw clutch based on spring force and be engaged in jaw clutch on this; realize that this transmission shaft normally drives the load gear ring and rotates; simultaneously when the load gear ring is obstructed should on jaw clutch can break away from and promote this time jaw clutch and move down, thereby this controlling mechanism can absorb this time jaw clutch based on length of spring compressed.
This controlling mechanism by spring 4 that is set in this transmission shaft successively and spring centring sleeve 5, this spring centring sleeve can be positioned this transmission shaft arbitrarily and be fixed in the adjustable lever 6 of this transmission shaft end and the adjusting screw 7 that cooperates is formed, this spring one end is supported in this spring centring sleeve anchor ring and the other end is supported in this time jaw clutch anchor ring.
This time jaw clutch inner ring surface axially is provided with a groove at least, to should this transmission shafts of groove to being convexly equipped with a strip convex part that can snap in this groove, be convenient to this time jaw clutch and axially can slide and circumferentially can be fixed in this transmission shaft along this transmission shaft based on this groove and this protuberance.
Be applied to the embodiment of automatic welding gun below in conjunction with the utility model, contrast Fig. 1 is described further:
In carrying out automatic welding process, welding gun rotates around central shaft based on electric-motor-driving, and motor rotates by the gear drive central shaft, rotates around central shaft thereby drive welding gun.Because in limited space, carry out tube sheet when welding automatically, through regular meeting welding wire and workpiece adhesion or welding gun and workpiece taking place and collide, thereby causes electric-motor-driving to be obstructed, seriously can make the motor damage.
Therefore at motor transmission shaft Self-protective device of motor drive overload of the present utility model is installed, is driven load (being central shaft) by jaw clutch on this and realize transmission.
Working principle of the present utility model is:
1. normal working:
This time jaw clutch is under the effect of the spring force of this controlling mechanism and should be in closed state by last jaw clutch.This motor transmission shaft drives the rotation of this time jaw clutch, drives simultaneously to go up jaw clutch and gear rotation, welding gun proper functioning.
2. adhesion, collision status:
When welding wire adhesion or welding gun collision workpiece takes place; the gear rotation is obstructed; when rotational resistance during greater than the spring force of controlling mechanism; promoting this time jaw clutch moves down; separate with jaw clutch on this, at this moment, gear stops the rotation; but motor still rotates, and protection motor, rifle body are not damaged.
Claims (3)
1. Self-protective device of motor drive overload; be installed between motor (10) transmission shaft (3) and the load gear ring; it is characterized in that; it is by the last jaw clutch (1) and the following jaw clutch (2) of the relative engagement that is set in this transmission shaft; this time jaw clutch is fixed in the controlling mechanism composition of this transmission shaft relatively; should go up jaw clutch and coaxial fixing and movable this transmission shaft that is set in of load gear ring; this time jaw clutch circumferentially is fixed in this transmission shaft and axially can slides along this transmission shaft; this controlling mechanism can drive this time jaw clutch based on spring force and be engaged in jaw clutch on this; realize that this transmission shaft normally drives the load gear ring and rotates; simultaneously when the load gear ring is obstructed should on jaw clutch can break away from and promote this time jaw clutch and move down, thereby this controlling mechanism can absorb this time jaw clutch based on length of spring compressed.
2. Self-protective device of motor drive overload as claimed in claim 1; it is characterized in that; this controlling mechanism by spring that is set in this transmission shaft successively (4) and spring centring sleeve (5), this spring centring sleeve can be positioned this transmission shaft arbitrarily and be fixed in the adjustable lever (6) of this transmission shaft end and the adjusting screw (7) that cooperates is formed, this spring one end is supported in this spring centring sleeve anchor ring and the other end is supported in this time jaw clutch anchor ring.
3. Self-protective device of motor drive overload as claimed in claim 1; it is characterized in that; this time jaw clutch inner ring surface axially is provided with a groove at least; to should this transmission shafts of groove to being convexly equipped with a strip convex part that can snap in this groove, be convenient to this time jaw clutch and axially can slide and circumferentially can be fixed in this transmission shaft along this transmission shaft based on this groove and this protuberance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520070589 CN2793441Y (en) | 2005-04-06 | 2005-04-06 | Automatic overload protector of motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520070589 CN2793441Y (en) | 2005-04-06 | 2005-04-06 | Automatic overload protector of motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2793441Y true CN2793441Y (en) | 2006-07-05 |
Family
ID=36820586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520070589 Expired - Lifetime CN2793441Y (en) | 2005-04-06 | 2005-04-06 | Automatic overload protector of motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2793441Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103115124A (en) * | 2013-03-04 | 2013-05-22 | 宁波新宏液压有限公司 | Planet gear speed reducer with clutch device |
| CN109322941A (en) * | 2018-11-15 | 2019-02-12 | 常州机电职业技术学院 | Hook type bidirectional safety device |
| WO2020216183A1 (en) * | 2019-04-22 | 2020-10-29 | 维沃移动通信有限公司 | Terminal device |
-
2005
- 2005-04-06 CN CN 200520070589 patent/CN2793441Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103115124A (en) * | 2013-03-04 | 2013-05-22 | 宁波新宏液压有限公司 | Planet gear speed reducer with clutch device |
| CN103115124B (en) * | 2013-03-04 | 2015-06-17 | 宁波新宏液压有限公司 | Planet gear speed reducer with clutch device |
| CN109322941A (en) * | 2018-11-15 | 2019-02-12 | 常州机电职业技术学院 | Hook type bidirectional safety device |
| WO2020216183A1 (en) * | 2019-04-22 | 2020-10-29 | 维沃移动通信有限公司 | Terminal device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: KUNSHAN HUANGHENG ENGINEERING TECHNOLOGY CENTER C Free format text: FORMER OWNER: KUNSHAN HUAHENG WELDING EQUIPMENT TECHNOLOGY CO., LTD. Effective date: 20070302 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20070302 Address after: 215311, Kunshan, Jiangsu, Xueyuan Road Province, No. 88 Patentee after: Kunshan Huaheng Engineering Technology Center Co., Ltd. Address before: 215300 Overseas Students Pioneer Park, Kunshan Development Zone, Jiangsu Patentee before: Huaheng Welding Apparatus Technology Co., Ltd., Kunshan City |
|
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Kunshan Huaheng Welding Co., Ltd. Assignor: Kunshan Huaheng Engineering Technology Center Co., Ltd. Contract fulfillment period: 2007.6.30 to 2013.6.29 Contract record no.: 2008320000557 Denomination of utility model: Automatic overload protector of motor Granted publication date: 20060705 License type: Exclusive license Record date: 20081006 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2007.6.30 TO 2013.6.29; CHANGE OF CONTRACT Name of requester: KUNSHAN HUAHENG WELDING CO., LTD. Effective date: 20081006 |
|
| C56 | Change in the name or address of the patentee |
Owner name: KUNSHAN HUAHENG WELDING CO.,LTD. Free format text: FORMER NAME: KUNSHAN HUAHENG ENGINEERING TECHNOLOGY CENTER CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 215311, Kunshan, Jiangsu, Xueyuan Road Province, No. 88 Patentee after: Kunshan Huaheng Welding Co., Ltd. Address before: 215311, Kunshan, Jiangsu, Xueyuan Road Province, No. 88 Patentee before: Kunshan Huaheng Engineering Technology Center Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20150406 Granted publication date: 20060705 |