CN204118954U - Be applied to the automatic speed limit device of motor and use the motor of this device - Google Patents
Be applied to the automatic speed limit device of motor and use the motor of this device Download PDFInfo
- Publication number
- CN204118954U CN204118954U CN201420549895.XU CN201420549895U CN204118954U CN 204118954 U CN204118954 U CN 204118954U CN 201420549895 U CN201420549895 U CN 201420549895U CN 204118954 U CN204118954 U CN 204118954U
- Authority
- CN
- China
- Prior art keywords
- speed limit
- motor
- slide bar
- chute
- block
- 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 discloses and is a kind ofly applied to the automatic speed limit device of motor and uses the motor of this device, this automatic speed limit device comprise to be arranged on motor rotary shaft and can thereupon synchronous axial system rotating disk and be fixed on several speed limit blocks of motor field frame inwall, rotating disk is provided with the chute that several radially extend, slide bar is provided with in chute, the middle part of slide bar is provided with slide block, and the external diameter of slide block is greater than the external diameter of the slide bar body of rod; The two ends of described slide bar all arrange a flexible member, and the two ends of this flexible member are resisted against between described slide block and an end wall of chute respectively; One end that described slide bar stretches out in chute is provided with the brake pad matched with described speed limit block.The utility model utilizes centrifugal force that slide bar is moved outside chute, makes brake pad contact speed limit block and rub, reaches the object of speed limit; Adopt electric component to realize the mode of speed limit of exceeding the speed limit compared to prior art, it is simple, with low cost and be convenient to the advantage safeguarded that the utility model has structure.
Description
Technical field
The utility model relates to motor technology field, particularly relates to a kind ofly be applied to the automatic speed limit device of motor and use the motor of this device.
Background technology
At present, motor has been widely used on various engineering goods as prime mover, lifting mechanism of such as rice mill, gantry crane etc.; In the operation process of motor, there is the situation of rotation speed change unavoidably, even sometimes occur the situation of overspeed operation; The hypervelocity of motor easily causes motor to be scrapped, and serious situation may cause security incident, therefore, in some occasion, easily causes security incident.For this reason; national regulations " should arrange overspeed tripping device for the exceed the speed limit danger caused or the lifting mechanism that there is potential safety hazard of important, load "; this overspeed tripping device carrys out control brake to realize by electronic component; when the motor threshold values that specifically transducer detects acquires a certain degree; control brake is braked, within making motor get back to safe speed of rotation scope.This ways of deceleration needs to rely on accurately, and reliable electric component, adds the manufacturing cost of engineering goods undoubtedly, low cost, require not high condition under, have the suspicion of waste resource; And the maintenance of electric component and maintenance requirement higher, when environment is more severe, maintenance and frequency of maintenance high, cause maintenance cost high.
Utility model content
For the deficiencies in the prior art, one of the purpose of this utility model is to provide a kind of automatic speed limit device being applied to motor, and it can realize the automatic speed-limiting function of motor, and have structure simple, with low cost and be convenient to safeguard advantage.
For achieving the above object, the utility model adopts following technical scheme:
Be applied to the automatic speed limit device of motor, comprise to be arranged on motor rotary shaft and can thereupon synchronous axial system rotating disk and be fixed on several speed limit blocks of motor field frame inwall, described rotating disk is provided with the chute that several radially extend, the slide bar that can slidably reciprocate along its length is provided with in each chute, the middle part of slide bar is provided with slide block, and the external diameter of described slide block is greater than the external diameter of the slide bar body of rod; The two ends of described slide bar all arrange a flexible member, and the two ends of this flexible member are resisted against between described slide block and an end wall of chute respectively; Described slide bar one end stretches out in chute and forms speed limit end outward, and this speed limit end is provided with the brake pad matched with described speed limit block.
Further, the outer face of described brake pad is circular arc.
Further, the end of described motor field frame is provided with link, and described speed limit block is fixed on the inwall of this link.
Further, described speed limit block is provided with four altogether, and is distributed on the inwall of described link equably; Described chute is provided with four altogether, and is distributed in equably on described rotating disk.
As mentioned above, rotating disk of the present utility model is when rotating, and described slide bar moves under the influence of centrifugal force outside rotating disk; When motor speed acquires a certain degree, centrifugal force overcomes the constraint of described flexible member, makes brake pad close and contacts described speed limit block, rubbing, thus reach the object of speed limit; Adopt electric component to realize the mode of speed limit of exceeding the speed limit compared to prior art, it is simple, with low cost and be convenient to the advantage safeguarded that the utility model has structure.
Another object of the present utility model is to provide a kind of motor using automatic speed limit device, can realize automatic speed-limiting function, and have structure simple, with low cost and be convenient to safeguard advantage.
For achieving the above object, the utility model adopts following technical scheme:
Use the motor of automatic speed limit device, comprise motor field frame, be articulated in the motor rotary shaft on motor case body axis and the automatic speed limit device described in any one of Claims 1-4, owing to being provided with described automatic speed limit device, this electronic function is made to reach hypervelocity speed limiting function, and compared to traditional motor with speed-limiting device, its have structure simple, with low cost and be convenient to safeguard advantage.
Accompanying drawing explanation
Fig. 1 is the structural representation that the utility model uses the motor of automatic speed limit device;
Fig. 2 is the structural representation that the utility model uses another angle of motor of automatic speed limit device;
Fig. 3 is the structural representation of the utility model automatic speed limit device;
Fig. 4 is the schematic diagram of a kind of motion state of the utility model automatic speed limit device.
Wherein: 1, motor field frame; 2, motor rotary shaft; 3, rotating disk; 31, chute; 32, slide bar; 321, slide block; 33, the first spring; 34, the second spring; 4, speed limit block; 5, brake pad; 6, link.
Embodiment
Below, by reference to the accompanying drawings and embodiment, the utility model is described further:
Refer to Fig. 1 to Fig. 4, it is a kind of structural representation using the motor of automatic speed limit device of the utility model, and described motor comprises motor field frame 1, be articulated in motor rotary shaft 2 on motor field frame 1 axis and automatic speed limit device.
Described automatic speed limit device comprise to be arranged on motor rotary shaft 2 and can thereupon synchronous axial system rotating disk 3 and be fixed on several speed limit blocks 4 of motor field frame 1 inwall, wherein in an embodiment, described speed limit block 4 is provided with four altogether, and is uniformly distributed in motor field frame 1 inwall; Described rotating disk 3 is provided with the chute 31 that several radially extend, wherein in an embodiment, described chute 31 is provided with four altogether, and four chutes 31 symmetrically are uniformly distributed on rotating disk 3 with rotating disk 3 center, the slide bar 32 that can slidably reciprocate along its length is provided with in each chute 31, the middle part of slide bar 32 is provided with slide block 321, wherein in an embodiment, described slide bar 32 is the circular body of rod, described slide block 321 rectangular-blocklike, the shape of certain slide bar 32 and slide block 321 can also be other geometries; The external diameter of described slide block 321 is greater than the external diameter of slide bar 32 body of rod; The two ends of described slide bar 32 all arrange a flexible member, the two ends of this flexible member are resisted against between described slide block 321 and an end wall of chute 31 respectively, in the present embodiment, slide bar 32 outer end is provided with the first spring 33, slide bar 32 the inner is provided with the second spring 34, described first spring 33 two ends are resisted against between slide block 321 outer end sidewall and chute 31 outer end wall, and described second spring 34 two ends are resisted against between the inner sidewall of slide block 321 and chute 31 inner end wall; Described slide bar 32 one end stretches out in chute 31 outer formation speed limit end, and this speed limit end is provided with the brake pad 5 matched with described speed limit block 4.
Operation principle of the present utility model is as follows:
Refer to Fig. 3 and Fig. 4, when motor is in non operating state, under the effect of described first spring 33 and the second spring 34, described slide bar 32 is contained in chute 31, described brake pad 5 inner end wall is resisted against the outer rim of described rotating disk 3, and now, slide bar 32 keeps transfixion; During motor start-up, motor rotary shaft 2 drives rotating disk 3 to rotate, and under the influence of centrifugal force, each described slide bar 32 all obtains the trend toward the outer motion of chute 31; Along with the progressively quickening of motor speed, the centrifugal force that described slide bar 32 is subject to progressively overcomes the centripetal force provided by the first spring 33 and the second spring 34, and slide bar 32 is towards the outwards movement of chute 31 length direction; When the over speed of rotation of motor, the brake pad 5 being arranged at slide bar 32 outer end contacts with described speed limit block 4 and rubs, thus reaches the object of restrictions motor rotating shaft 2 rotating speed; This automatic speed limit device structure is simple, with low cost, is convenient to safeguard.
As further improvement, the outer face of described brake pad 5 is circular arc, and this profile design can strengthen friction stroke, promotes slowing effect further.
Refer to Fig. 1 and Fig. 2, particularly, the end of described motor field frame 1 is provided with link 6, the diameter of this link 6 is greater than the diameter of described motor field frame 1, described speed limit block 4 is fixed on the inwall of this link 6, the setting of this link 6 can increasing motor end space, is convenient to installing rotating disk 3 and associated component.
In sum, rotating disk 3 of the present utility model is when rotating, and described slide bar 32 moves under the influence of centrifugal force outside rotating disk 3; When motor speed reaches certain numerical value, centrifugal force overcomes the constraint of described flexible member, makes brake pad 5 close and contacts described speed limit block 4, rubbing, thus reach the object of speed limit; Adopt electric component to realize the mode of speed limit of exceeding the speed limit compared to prior art, it is simple, with low cost and be convenient to the advantage safeguarded that the utility model has structure.
To one skilled in the art, according to technical scheme described above and design, other various corresponding change and deformation can be made, and all these change and deformation all should belong within the protection range of the utility model claim.
Claims (5)
1. be applied to the automatic speed limit device of motor, it is characterized in that: comprise to be arranged on motor rotary shaft and can thereupon synchronous axial system rotating disk and be fixed on several speed limit blocks of motor field frame inwall, described rotating disk is provided with the chute that several radially extend, the slide bar that can slidably reciprocate along its length is provided with in each chute, the middle part of slide bar is provided with slide block, and the external diameter of described slide block is greater than the external diameter of the slide bar body of rod; The two ends of described slide bar all arrange a flexible member, and the two ends of this flexible member are resisted against between described slide block and an end wall of chute respectively; Described slide bar one end stretches out in chute and forms speed limit end outward, and this speed limit end is provided with the brake pad matched with described speed limit block.
2. be applied to the automatic speed limit device of motor as claimed in claim 1, it is characterized in that: the outer face of described brake pad is circular arc.
3. be applied to the automatic speed limit device of motor as claimed in claim 1, it is characterized in that: the end of described motor field frame is provided with link, described speed limit block is fixed on the inwall of this link.
4. be applied to the automatic speed limit device of motor as claimed in claim 3, it is characterized in that: described speed limit block is provided with four altogether, and be distributed on the inwall of described link equably; Described chute is provided with four altogether, and is distributed in equably on described rotating disk.
5. use the motor of automatic speed limit device, it is characterized in that: comprise motor field frame, be articulated in the motor rotary shaft on motor case body axis and the automatic speed limit device described in any one of Claims 1-4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420549895.XU CN204118954U (en) | 2014-09-23 | 2014-09-23 | Be applied to the automatic speed limit device of motor and use the motor of this device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420549895.XU CN204118954U (en) | 2014-09-23 | 2014-09-23 | Be applied to the automatic speed limit device of motor and use the motor of this device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204118954U true CN204118954U (en) | 2015-01-21 |
Family
ID=52336233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420549895.XU Expired - Fee Related CN204118954U (en) | 2014-09-23 | 2014-09-23 | Be applied to the automatic speed limit device of motor and use the motor of this device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204118954U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108435339A (en) * | 2018-04-23 | 2018-08-24 | 珠海市万顺睿通科技有限公司 | A kind of powder manufacturing apparatus with safety guard |
| CN109780091A (en) * | 2017-11-15 | 2019-05-21 | 广东德昌电机有限公司 | Centrifugal brake and shutter driver with centrifugal brake |
| CN112555734A (en) * | 2020-12-09 | 2021-03-26 | 徐永金 | Solar energy and wind energy LED street lamp |
| CN114148831A (en) * | 2021-12-15 | 2022-03-08 | 国家电网有限公司 | Pay-off is used in electric power construction of book footpath adjustable |
-
2014
- 2014-09-23 CN CN201420549895.XU patent/CN204118954U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109780091A (en) * | 2017-11-15 | 2019-05-21 | 广东德昌电机有限公司 | Centrifugal brake and shutter driver with centrifugal brake |
| CN109780091B (en) * | 2017-11-15 | 2021-12-17 | 广东德昌电机有限公司 | Centrifugal brake and shutter drive with a centrifugal brake |
| CN108435339A (en) * | 2018-04-23 | 2018-08-24 | 珠海市万顺睿通科技有限公司 | A kind of powder manufacturing apparatus with safety guard |
| CN112555734A (en) * | 2020-12-09 | 2021-03-26 | 徐永金 | Solar energy and wind energy LED street lamp |
| CN114148831A (en) * | 2021-12-15 | 2022-03-08 | 国家电网有限公司 | Pay-off is used in electric power construction of book footpath adjustable |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204118954U (en) | Be applied to the automatic speed limit device of motor and use the motor of this device | |
| CN204271818U (en) | Automatic speed-limiting motor and crane | |
| CN104485776B (en) | Automatic speed-limiting motor and crane | |
| CN204198145U (en) | A kind of cable drum device | |
| CN204960773U (en) | Prevent weighing down rolling door machine brake disc | |
| CN103863009B (en) | Castor with self-locking mechanism | |
| CN205823135U (en) | The anti-fall brake gear of door roller | |
| CN202883831U (en) | Speeding braking device | |
| CN107355492A (en) | A kind of crane gear foolproof apparatus | |
| CN203283988U (en) | Anti-dropping safety device | |
| CN204823560U (en) | Elevator motor for building prevents weighing down safety device | |
| CN203528721U (en) | Mechanical anti-lock device of bicycle | |
| CN101969249B (en) | Construction lifter motor with centrifugal braking device | |
| CN204886544U (en) | Elevator motor for building with prevent weighing down function | |
| CN204823607U (en) | Elevator motor's taper sleeve formula output drive mechanism | |
| CN201846184U (en) | Construction lifter motor with centrifugal brake device | |
| CN103613036B (en) | Anti-collision mechanical device | |
| CN203035809U (en) | Rotary-type braking device | |
| CN203374697U (en) | Inner stretching type braking device | |
| CN207175322U (en) | A kind of brake apparatus of air hoist | |
| CN202988637U (en) | Embedded running wheel brake | |
| CN204683073U (en) | Bed body rotating mechanism | |
| CN204823983U (en) | Gear pump self -cooled retarding braking device of high -rise rescue lift of non - wound form | |
| CN106794961B (en) | Governor and lift appliance | |
| CN214611266U (en) | Electric hoist with damping and shock-absorbing functions |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150121 Termination date: 20200923 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |