CN206468765U - A kind of YE crosses torque protection mechanism - Google Patents
A kind of YE crosses torque protection mechanism Download PDFInfo
- Publication number
- CN206468765U CN206468765U CN201720081608.0U CN201720081608U CN206468765U CN 206468765 U CN206468765 U CN 206468765U CN 201720081608 U CN201720081608 U CN 201720081608U CN 206468765 U CN206468765 U CN 206468765U
- Authority
- CN
- China
- Prior art keywords
- fixing axle
- ring
- spring
- type rack
- protection component
- 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.)
- Active
Links
- 230000035945 sensitivity Effects 0.000 abstract description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000003321 amplification Effects 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 241000237858 Gastropoda Species 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
Landscapes
- Transmission Devices (AREA)
Abstract
Torque protection mechanism is crossed the utility model discloses a kind of YE, include fixing axle, worm gear and force moment protection component, one end of the fixing axle and the drive disk assembly of YE are connected, the worm gear is connected with valve rod, the moving parts for driving worm gear wheel and coordinating with force moment protection component is provided with the fixing axle, it is characterized in that the moving parts includes the hollow worm screw being set in fixing axle, ring-type rack and spring, the spring is arranged on the two ends of hollow worm screw, the ring-type rack is arranged between hollow worm screw and spring, the ring-type rack is engaged with the driven gear of force moment protection component, the hollow worm and wheel engagement.Not only precision is high for the utility model, sensitivity is high, and structure is compacter, and required space is small, it is adaptable to small-size electric actuator.
Description
Technical field
The utility model relates to a kind of YE improvement invention, more particularly to be a kind of YE
Cross torque protection mechanism.
Background technology
Look into Chinese patent, wherein Patent No. 201310052361.6, entitled《A kind of overload of YE
Protection mechanism》Disclose herein below：, the overload protecting mechanism of the YE includes worm shaft and connecting shaft, the snail
Worm screw is arranged with bar axle, the worm and wheel is connected, and the worm screw both sides make worm screw after being moved left and right provided with worm screw
The elastic component of reset, described worm screw one end is connected with sheave, the groove of the sheave provided with the driving member for rotating connecting shaft, its
It is characterised by：The axial cross section of its worm screw direction of principal axis of the groove of the sheave is in horn-like, and the driving member is single tooth wheel, described
The flank of tooth of single tooth wheel both sides is arc-shaped tooth, and the arc-shaped tooth of single tooth wheel is arranged in groove, and arc-shaped tooth with
The groove face of groove is in linear contact lay, and when the worm screw moves left and right, single tooth wheel does corresponding rotation, make on single tooth wheel arc-shaped tooth with
The position of its linear contact lay of the groove face of sheave groove is carried out on corresponding conversion, single tooth wheel connection sprocket drive spindle, the gear shaft
Sector gear is installed, the sector gear is connected with connecting shaft, and single tooth wheel passes through gear shaft and sector gear
It is connected with connecting shaft.Above-mentioned patent drives single tooth pinion rotation respective angles by worm gear axial displacement, with single tooth wheel
Meshed gears axle is amplified corner by sector gear, and the angular displacement after amplification passes to adjusting means by connecting shaft, is turned
Angle amplification is then that, in order to improve the precision of rotation, and the longer torsion of length of single tooth of single tooth wheel is bigger, torsion
It is big that adjusting means could be driven to run, therefore above-mentioned patent is not only complicated, and also space-consuming is big, is only applicable to large-scale
YE, is not suitable for small-sized YE.
The content of the invention
In view of the technical problem that background technology is present, the technical problems to be solved in the utility model is to provide a kind of structure and set
Count reasonable, high transmission accuracy, sensitivity is good and is applied to the mistake torque protection mechanism of small-size electric actuator.
In order to solve the above-mentioned technical problem, the utility model adopts the following technical scheme that to realize：This kind electronic to hold
Row device crosses torque protection mechanism, includes fixing axle, worm gear and force moment protection component, one end of the fixing axle and electronic execution
The drive disk assembly connection of device, the worm gear is connected with valve rod, is provided with bearing, the fixing axle and is provided with the fixing axle
Worm gear wheel and the moving parts coordinated with force moment protection component are driven, the moving parts is arranged between two bearings, and it is special
Levy and be that the moving parts includes the hollow worm screw being set in fixing axle, ring-type rack and spring, the spring is set
Have at least two, and the spring is arranged on the two ends of hollow worm screw, the ring-type rack be arranged on hollow worm screw and spring it
Between, the ring-type rack is engaged with the driven gear of force moment protection component, and the hollow worm and wheel engagement, the worm gear is born
When load changes, the worm gear causes moving parts to be moved in fixing axle, the ring-type rack moving belt of the moving parts
The driven gear of kinetic moment protection component is rotated.
The force moment protection component also includes rotating shaft, cam and touching switch, and the driven gear and cam are respectively mounted
In rotating shaft, cam is engaged with touching switch.
The utility model is when worm gear load changes, and worm gear causes the axle in fixing axle of the moving parts in fixing axle
To movement, the driven gear of ring-type rack drives kinetic moment protection component is rotated, and is made drive disk assembly out of service, was so realized
Force moment protection.The utility model directly drives driven gear to rotate using ring-type rack displacement, and rack is passed compared with background technology
Dynamic more fine, not only precision is high, sensitivity is high, and directly driven gear can be driven to rotate by ring-type rack, structure
Compacter, required space is small, it is adaptable to small-size electric actuator.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of annular rack of the present invention.
Embodiment
Structure of the present utility model and its relevant details are further described below in conjunction with the accompanying drawings.Referring to the drawings, this kind it is electronic
Actuator crosses torque protection mechanism, includes fixing axle 7, worm gear 9 and force moment protection component, one end and the electricity of the fixing axle 7
The drive disk assembly connection of dynamic actuator, the worm gear 9 is connected with valve rod 8, and bearing 6, i.e. fixing axle are provided with the fixing axle 7
In the housing that YE is arranged on by bearing, drive worm gear 9 is provided with the fixing axle 7 and is rotated and and force moment protection
The moving parts that component coordinates, the moving parts is arranged between two bearings 6, and the moving parts, which includes, is set in fixation
Hollow worm screw 10, ring-type rack 3 and spring 5 on axle, the ring-type rack 3 are annular, can be set in fixing axle
Rack, the spring 5 is provided with least two, and the present embodiment is provided with two, and the spring 5 is arranged on hollow worm screw 10
Two ends, the ring-type rack 3 is arranged between hollow worm screw 10 and spring 5, i.e. the force moment protection component background technology
In adjusting means, the force moment protection component can use the structure of the adjusting means in background technology, in the present embodiment, institute
State force moment protection component and include driven gear 4, rotating shaft 2, cam 1 and touching switch, the driven gear 4 and cam 1 are pacified
In rotating shaft 2, the driven gear 4 is engaged with ring-type rack 3, and the hollow worm screw 10 engages with worm gear 9, the cam 1
It is engaged with touching switch, the drive disk assembly is identical with the drive disk assembly of existing YE, includes motor and biography
Moving gear group, motor sends power to driving gear set, and driving gear set drives fixing axle 7 to rotate, the touching switch with
Motor is electrically connected, i.e. when the salient point of cam 1 is contacted with touching switch, motor is out of service, and cam is not contacted with touching switch, then
Motor is opened；When the worm gear load changes, the worm gear 9 causes moving parts to be moved in fixing axle 7, the movement
Part drives force moment protection assembly operating, when the load of worm gear becomes big, hollow worm screw 10 is overcome the elastic force of spring 5 in fixing axle
Moved axially on 7, hollow worm screw 10 drives ring-type rack 3 to be moved in fixing axle simultaneously, ring-type rack 3 drives driven gear 4
Rotate, the rotating shaft 2 and cam 1 are rotated simultaneously together with driven gear 4, and the salient point on cam 1 contacts then motor with touching switch
It is out of service, so realized force moment protection.
Claims (2)
1. a kind of YE crosses torque protection mechanism, include fixing axle（7）, worm gear（9）And force moment protection component, it is described
One end of fixing axle and the drive disk assembly of YE are connected, the worm gear and valve rod（8）Installed in connection, the fixing axle
There is bearing（6）, the moving parts for driving worm gear wheel and coordinating with force moment protection component, the shifting are provided with the fixing axle
Dynamic component is arranged between two bearings, it is characterised in that the moving parts includes the hollow worm screw being set in fixing axle
（10）, ring-type rack（3）And spring（5）, the spring is provided with least two, and the spring is arranged on the two of hollow worm screw
End, the ring-type rack is arranged between hollow worm screw and spring, the driven gear of the ring-type rack and force moment protection component
（4）Engagement, the hollow worm and wheel engagement, when the worm gear load changes, the worm gear causes moving parts to exist
Moved in fixing axle, the driven gear of the ring-type rack moving belt kinetic moment protection component of the moving parts is rotated.
2. YE according to claim 1 crosses torque protection mechanism, it is characterised in that the force moment protection component
Also include rotating shaft（2）, cam（1）And touching switch, the driven gear and cam be installed in rotating shaft, cam and touching
Switch is engaged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720081608.0U CN206468765U (en) | 2017-01-22 | 2017-01-22 | A kind of YE crosses torque protection mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720081608.0U CN206468765U (en) | 2017-01-22 | 2017-01-22 | A kind of YE crosses torque protection mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206468765U true CN206468765U (en) | 2017-09-05 |
Family
ID=59702908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720081608.0U Active CN206468765U (en) | 2017-01-22 | 2017-01-22 | A kind of YE crosses torque protection mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206468765U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106704524A (en) * | 2017-01-22 | 2017-05-24 | 蔡东武 | Over-moment protective mechanism for electric actuator |
-
2017
- 2017-01-22 CN CN201720081608.0U patent/CN206468765U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106704524A (en) * | 2017-01-22 | 2017-05-24 | 蔡东武 | Over-moment protective mechanism for electric actuator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203442281U (en) | Linear driving device and exhaust recycling control valve | |
| CN201100471Y (en) | Angle stroke electric execution machine | |
| CN102175471A (en) | Electromechanical linear loader | |
| CN103280344B (en) | The transmission device of circuit breaker hand, electromotion integrated operating mechanism | |
| CN105448554A (en) | Motor-operating mechanism with wide-angle output | |
| CN215908292U (en) | Large-angle rotation limit control device | |
| CN206468765U (en) | A kind of YE crosses torque protection mechanism | |
| CN106704524A (en) | Over-moment protective mechanism for electric actuator | |
| CN203300483U (en) | Transmission apparatus of integrated manual-electrical operating mechanism of circuit breaker | |
| CN202878319U (en) | Robot finger based on twisted rope driving | |
| CN203552969U (en) | Bidirectional clutch transmission mechanism | |
| CN212527796U (en) | Electric clamping jaw | |
| CN110253623B (en) | A robot joint module with variable stiffness | |
| CN220337326U (en) | Brake device, motor and robot thereof | |
| CN206347179U (en) | A kind of mechanical stop limiter of YE output shaft | |
| CN111354579B (en) | A three-station electric mechanism for direct-driven large-torque common box | |
| CN109278033B (en) | Forward and reverse rotation force increasing mechanism capable of resisting reverse impact | |
| CN201827317U (en) | Deadlock prevention device for spacing of screw rod pair | |
| CN204130370U (en) | Wide-angle output motor operating mechanism | |
| CN204668176U (en) | A kind of high-voltage switch gear and mechanical operating mechanism thereof | |
| CN113700800A (en) | Metering pump worm gear drive mechanism with bidirectional overload protection | |
| CN107588165B (en) | Gear rack transmission mechanism | |
| CN205745161U (en) | A kind of controllable mechanism of movement locus | |
| CN221463054U (en) | Micro-torque electric actuating mechanism | |
| CN211517549U (en) | Intelligent robot turns to device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |