CN2112223U - Self-locking motor - Google Patents
Self-locking motor Download PDFInfo
- Publication number
- CN2112223U CN2112223U CN 91230810 CN91230810U CN2112223U CN 2112223 U CN2112223 U CN 2112223U CN 91230810 CN91230810 CN 91230810 CN 91230810 U CN91230810 U CN 91230810U CN 2112223 U CN2112223 U CN 2112223U
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- Prior art keywords
- self
- motor
- locking
- worm
- speed reducer
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model provides a motor-speed reducer direct type self-locking motor. A shaft of a motor and an input shaft of a speed reducer are combined into a shaft. The motor has a self-locking structure that a first level worm rod and worm wheel mechanism is arranged in a gear pair of the speed reducer, and a worm rod is used as a driving part to drive a worm wheel. The motor has self-locking conditions that the lead angle called lambada of the worm rod is smaller than the friction angle called phi; when the worm wheel is used as a driving part, the self-locking phenomenon can happen. The self-locking motor has the advantages of compact structure, low manufacturing cost and reliable self-locking performance. The utility model can be used in hoisting equipment, towing equipment, and steering positioning devices of outdoor television antennas.
Description
The utility model relates to the self-locking motor of the direct type of a kind of motor-decelerator.
Modern various manufacturing machines all extensive use motor drive, carry out electric traction.For prevent motor driven, when traction is ended, equipment, security incident that the weight of slinging as crane, the load bearing equipment reverse drive of hoist engine traction are caused, so motor need carry out self-locking are even driven member can not drive driving link.The universal way that addresses this problem now is to adopt electromagnetism adhesive band-type brake, pins power transmission shaft and brakes, but mechanism's complexity, the manufacturing cost height of this locking mode.
The purpose of this utility model is the self-locking motor that the direct type of a kind of motor-decelerator will be provided, and it is locked by the worm and worm gear locking phenomenon in the reducer gear pair.
Task of the present utility model is finished like this: adopt the direct type structure of motor-decelerator, motor directly is fixed on the reducer shell, motor reel and input shaft of speed reducer are combined into an axle, and the self-locking structure of motor is that in the gear pair of decelerator one-level to be arranged be worm and worm gear.Worm-drive worm gear, the lift angle λ of worm screw be less than angle of friction ψ, and then when worm gear mechanism's self-locking initiatively the time, promptly the load bearing equipment of the weight of slinging when crane, hoist engine traction is exported when applying opposing torque decelerator, and decelerator is just by self-locking.
The self-locking electric motor structure compactness that the utility model provides, take up space little, cost is low, self-locking property is reliable, and is suitable for the positioner that turns to make outdoor television antenna, to solve the rotation phenomenon that outdoor television antenna produces because of windage.
Below in conjunction with the accompanying drawings concrete structure of the present utility model is described in any further with embodiment:
Fig. 1 carries the full sectional view of a kind of self-locking motor of type for the utility model.
Fig. 2 looks partial sectional view for the right side of Fig. 1 structure.
Fig. 3 is the A-A cutaway view of Fig. 1 structure.
The self-locking motor that present embodiment provides reaches the decelerator that connects with it by the bidirectional reversible synchronous machine and forms.The motor model adopts the 50TYZ-A type, and motor partly is made up of motor housing 11, bobbin 15, coil 12, rotor 9, motor output shaft 13.Decelerator partly is made up of gear block 10, support plate 17, case 6 and cylindrical gear pair 14,16, bevel gear pair 18,19, worm- gears 5,7, output shaft 1.Socket roller gear 14 on the motor output shaft 13.Roller gear 16, bevel gear 18 all are socketed on the mandrel 20.Bevel gear 19 is connected on 5 of the worm screws.Worm screw seat 4 is fixed on the support plate 17, and worm screw 5 is engaged in the worm screw seat 4.Worm screw seat 4 has the breach of stepping down in worm screw 5 and worm gear 7 engagement places, for the worm engaging in worm-gear toothing and the worm screw seat.Worm gear 7 is fixed on the output shaft 1.Output shaft is supported by the sliding bearing 3 that is fixed on the sliding bearing 8 on the support plate 17 and be fixed on the case 6.Output shaft 1 has the breach that connects for output, and is provided with the collision block installing hole 2 of control motor positive and inverse.The self-locking motor that the utility model provides, worm screw is used steel, and worm gear is made with copper material, and worm screw lift angle λ is less than angle of friction ψ, and the worm screw lift angle λ of self-locking is preferably 7 ° 3 ', therefore can only be by the worm-drive worm gear, mechanism is with regard to self-locking when worm gear is driving link.Decelerator is roller gear, bevel gear, three grades of transmissions of worm and wormwheel.Because the self-locking motor shown in the present embodiment mainly is to be used for turning to of outdoor television antenna to regulate the location, therefore the motor speed of choosing is 600 rev/mins, and the decelerator output speed is 5 rev/mins, gearratio i=120.When the bidirectional reversible synchronous machine get electric after, output shaft 1 is controlled with 360 ° of automatic reverses by the collision block that is loaded on this, continuous positive and negative rotation or crawl, the rotation of drive television antenna, seek the optimum reception position, in case found optimum reception position, deenergization, output shaft 1 is self-locking, and the television antenna position has also obtained fixing.Certainly this structure applications other as lifting, pulling equipment in the time can adopt asynchronous, direct current machine, gearratio also can be set as required.
Claims (3)
1, a kind of self-locking motor, motor is that one connects with decelerator, it is characterized in that the motor self-locking structure is that one-level is arranged in the reducer gear pair is worm and worm gear, and worm screw is a driving link, and the lift angle λ of worm screw is less than angle of friction φ.
2, self-locking motor according to claim 1 is characterized in that roller gear is arranged in the decelerator, bevel gear, three grades of transmissions of worm and wormwheel.
3, self-locking motor according to claim 1, it is characterized in that the lift angle λ that worm screw reaches self-locking be preferably 7 ° 3 '.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91230810 CN2112223U (en) | 1991-10-18 | 1991-10-18 | Self-locking motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91230810 CN2112223U (en) | 1991-10-18 | 1991-10-18 | Self-locking motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2112223U true CN2112223U (en) | 1992-08-05 |
Family
ID=4936095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91230810 Pending CN2112223U (en) | 1991-10-18 | 1991-10-18 | Self-locking motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2112223U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1297068C (en) * | 2004-01-19 | 2007-01-24 | 上海交通大学 | Micro electromechanical system based unidirectional stepping reverse self-locking electromagnetic driver |
| CN103114818A (en) * | 2013-02-26 | 2013-05-22 | 中国石油集团长城钻探工程有限公司顶驱技术分公司 | Pipe processor driving device for top drive |
| CN112914607A (en) * | 2019-12-06 | 2021-06-08 | 通用电气精准医疗有限责任公司 | Ultrasonic imaging device and imaging method thereof |
-
1991
- 1991-10-18 CN CN 91230810 patent/CN2112223U/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1297068C (en) * | 2004-01-19 | 2007-01-24 | 上海交通大学 | Micro electromechanical system based unidirectional stepping reverse self-locking electromagnetic driver |
| CN103114818A (en) * | 2013-02-26 | 2013-05-22 | 中国石油集团长城钻探工程有限公司顶驱技术分公司 | Pipe processor driving device for top drive |
| CN103114818B (en) * | 2013-02-26 | 2015-11-18 | 中国石油集团长城钻探工程有限公司顶驱技术分公司 | Top is driven and is used pipe processor drive unit |
| CN112914607A (en) * | 2019-12-06 | 2021-06-08 | 通用电气精准医疗有限责任公司 | Ultrasonic imaging device and imaging method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| AD01 | Patent right deemed abandoned | ||
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |