CN2427674Y - Safety friction clutch type worm pair gearing mechanism - Google Patents
Safety friction clutch type worm pair gearing mechanism Download PDFInfo
- Publication number
- CN2427674Y CN2427674Y CN 00217814 CN00217814U CN2427674Y CN 2427674 Y CN2427674 Y CN 2427674Y CN 00217814 CN00217814 CN 00217814 CN 00217814 U CN00217814 U CN 00217814U CN 2427674 Y CN2427674 Y CN 2427674Y
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- CN
- China
- Prior art keywords
- worm
- motor shaft
- motor
- screw
- utility
- 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 relates to a safety friction clutch type worm pair transmission mechanism, which comprises a worm wheel, a worm and a motor. The utility model is characterized in that a clutch device which can transfer power is installed between a motor shaft and the worm; the clutch device is composed of an outer friction piece, an inner friction piece, a pressing cap, a pressing spring, a top rod, a pressing pin, etc. The existing mode of power transfer for the worm by the motor directly is changed into the mode of transfer by the clutch device scientifically and reasonably, and the size of the transfer of the power of the clutch device can be adjusted. When a mechanical device which is provided with the utility model meets obstructions in operation, the motor can carry out idle rotation to avoid occurrence of accidents. The safety of the utility model is good, and the utility model is especially suitable for mechanical door operator, such as orbital electric doors or telescopic doors, etc.
Description
The utility model relates to mechanical transmission mechanism, especially relate to a kind of safe friction clutch formula worm rod pair driving mechanism that is used for the worm gear reducer door lifter.
Existing Worm wheel transmission mechanism is made of worm gear and worm screw usually, and worm gear or worm screw are under the drive of motor, worm gear and worm screw run-in synchronism, realize the purpose of transmission, but because the outputting power of Worm wheel transmission mechanism is fixed no pooling feature, the output power of motor all is transported to output shaft, output shaft torque can't be regulated as required, when mechanical transmission runs into obstacle, can not stop automatically, but continue so very easily to cause and hurt sb.'s feelings, hinder thing and self-destruction accident forward.The patent No. be ZL98216064.x, notice of authorization number for the Chinese patent of CN2343419Y " clutch type Worm wheel transmission mechanism " by stay bolt, friction plate, stage clip and adjusting nut are formed engaging and disengaging gear up and down, solved the problem that output torque can be regulated, can stop automatically when making transmission device run into obstacle, avoided the generation of accident, but shortcoming is that some power passes on the motor bearings when compressing clutch, make the inside and outside circle dislocation of bearing, frictional force increases, consume power of motor, shorten working life.
Thereby the purpose of this utility model is to provide a kind of safe friction clutch formula worm rod pair driving mechanism that obstacle can stop to avoid accident generation, not loss power of motor, long service life automatically of meeting.
The purpose of this utility model is achieved in that the utility model comprises worm gear, worm screw and motor, worm screw is a hollow-core construction, worm screw by Bearing Installation on motor shaft, feature is that an engaging and disengaging gear that can transmit motor shaft and worm screw power is installed between motor shaft and worm screw, this engaging and disengaging gear by left and right sides outside friction disc, about in friction plate, screw, clamping cap, stage clip, push rod, pad form.The transmission of power friction pressure of engaging and disengaging gear can be set by regulating clamping cap.
Working principle of the present utility model is: the mode of prior motor directly being given transmission of power worm screw, change system into the mode that passes to worm screw by engaging and disengaging gear, the transmission of power size of engaging and disengaging gear then can be set by the frictional force of regulating engaging and disengaging gear.Be in operation and run into obstacle when being provided with mechanical device of the present utility model, dawn is when surmounting rated power, worm screw stops operating under the effect of engaging and disengaging gear, and the motor shaft idle running that then motor drove avoids causing because of snapping in of obstacle the generation of mechanical failure or the wounded or disabled accident of personnel.The utility model is to be the further improvement of the patent of ZL98216064.x to the patent No., it does not consume power of motor, the utlity model has design science, rational in infrastructure simple, easy to operate, Security is good, the advantage of not loss power of motor, long service life, be applicable to the mechanical device of various public arenas, be particularly suited for the application on the mechanical door lifters such as rail mounted power door operation or retractable door.
Fig. 1 is a structural representation of the present utility model.
Below in conjunction with embodiment and contrast accompanying drawing the utility model is described in further detail.
Embodiment: the utility model comprises worm gear 19, worm screw 12 and motor 2, and motor bearings 6 is installed in the motor 2, and worm screw 12 is a hollow-core construction, and worm screw 12 is installed on the motor shaft 17 by bearing 11.One engaging and disengaging gear 18 that can transmit motor shaft 17 and worm screw 12 power is installed between motor shaft 17 and worm screw 12, this engaging and disengaging gear 18 is by clamping cap 1, stage clip 3, push rod 4, pad 7, left side outside friction disc 9, friction plate 10 in the left side, friction plate 13 in right, right outside friction disc 14, screw 16 is formed, friction plate 10 in the left side, friction plate 13 all is enclosed within on the motor shaft 17 in right, and be fixed in worm gear 12 two ends, right outside friction disc 14 fits together with right interior friction plate 13, screw 16 is fixed on right outside friction disc 14 on the motor shaft 17, left side outside friction disc 9 is placed on the motor shaft 17 and with the interior friction plate 10 in a left side and fits together, be processed with long strip circular hole 5 on the motor shaft 17 in motor 2, be processed with on the motor shaft 17 outside motor 2 and communicate with long strip circular hole 5 and vertical motor shaft 17 rectangular hole 8 radially that runs through, pad 7 passes rectangular hole 8, its two ends are stuck in the left outside friction disc 9, one end of push rod 4 passes long strip circular hole 5 and withstands on the pad 7, clamping cap 1 and long strip circular hole 5 are equipped with stage clip 3 with screw-thread fit between the clamping cap 1 and push rod 4 the other ends.Between right outside friction disc 14 and screw 16, retaining sheet 15 is installed.
Adjust clamping cap 1 and just can compress stage clip 3, stage clip 3 passes to pad 7 to power through push rod 4, by pad 7 power is passed to left outside friction disc 9 and right outside friction disc 14 again, the corresponding increase of frictional force in a so left outside friction disc 9 and the left side between the friction plate 10, between the interior friction plate 13 of the right outside friction disc 14 and the right side.When motor 2 drives motor shaft 17 rotations, then can drive worm screws 12 and rotate synchronously, and power be flowed to worm gear 19 by worm screw 12 by engaging and disengaging gear 18, realize the output of power.In the power output procedure, meet obstacle, and when having surmounted nominal force, in the left outside friction disc 9 of engaging and disengaging gear 18 and the left side between the friction plate 10, generation effect between right outside friction disc 14 and the right interior friction plate 13, engaging and disengaging gear 18 is in breaks away from the dress attitude, worm screw 12 will shut down this moment, be motor shaft 17 idle running under motor 2 drives, realize that this mechanism stops the purpose of outside outputting power automatically when meeting obstacle.
The utility model is used on mechanical door lifters such as rail mounted power door operation or retractable door can stop the accident that any damage machine of hurting sb.'s feelings takes place for this in running, make the mechanical door lifter operation safety and reliability of the type.
Claims (2)
1, a kind of safe friction clutch formula worm rod pair driving mechanism, comprise worm gear (19), worm screw (12) and motor (2), worm screw (12) is a hollow-core construction, worm screw (12) is installed on the motor shaft (17) by bearing (11), it is characterized in that: an engaging and disengaging gear (18) that can transmit motor shaft (17) and worm screw (12) power is installed between motor shaft (17) and worm screw (12), this engaging and disengaging gear (18) is by clamping cap (1), stage clip (3), push rod (4), pad (7), left side outside friction disc (9), friction plate (10) in the left side, friction plate (13) in right, right outside friction disc (14), screw (16) is formed, friction plate (10) in the left side, friction plate (13) all is enclosed within on the motor shaft (17) in right, and be fixed in worm gear (12) two ends, right outside friction disc (14) fits together with right interior friction plate (13), screw (16) is fixed on right outside friction disc (14) on the motor shaft (17), left side outside friction disc (9) is placed in motor shaft (17) and upward and with the interior friction plate (10) in a left side fits together, be processed with long strip circular hole (5) on the motor shaft (17) in motor (2), be processed with on the motor shaft (17) outside motor (2) and communicate with long strip circular hole (5) and vertical motor shaft (17) rectangular hole (8) radially that runs through, pad (7) passes rectangular hole (8), its two ends are stuck in the left outside friction disc (9), one end of push rod (4) passes long strip circular hole (5) and withstands on the pad (7), clamping cap (1) and long strip circular hole (5) are equipped with stage clip (3) with screw-thread fit between the clamping cap (1) and push rod (4) the other end.
2, safe friction clutch formula worm rod pair driving mechanism as claimed in claim 1 is characterized in that: between right outside friction disc (14) and screw (16) retaining sheet (15) is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00217814 CN2427674Y (en) | 2000-05-26 | 2000-05-26 | Safety friction clutch type worm pair gearing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00217814 CN2427674Y (en) | 2000-05-26 | 2000-05-26 | Safety friction clutch type worm pair gearing mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2427674Y true CN2427674Y (en) | 2001-04-25 |
Family
ID=33583321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00217814 Expired - Fee Related CN2427674Y (en) | 2000-05-26 | 2000-05-26 | Safety friction clutch type worm pair gearing mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2427674Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106516915A (en) * | 2015-09-13 | 2017-03-22 | 沧州华海风电设备科技技术开发有限公司 | Force adjusting and outputting machine |
-
2000
- 2000-05-26 CN CN 00217814 patent/CN2427674Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106516915A (en) * | 2015-09-13 | 2017-03-22 | 沧州华海风电设备科技技术开发有限公司 | Force adjusting and outputting machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |