CN104485776A - Automatic speed limiting motor and crane - Google Patents
Automatic speed limiting motor and crane Download PDFInfo
- Publication number
- CN104485776A CN104485776A CN201410825703.8A CN201410825703A CN104485776A CN 104485776 A CN104485776 A CN 104485776A CN 201410825703 A CN201410825703 A CN 201410825703A CN 104485776 A CN104485776 A CN 104485776A
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- slide bar
- motor
- speed
- automatic speed
- limiting
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- 230000007246 mechanism Effects 0.000 claims description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 239000000725 suspension Substances 0.000 claims description 6
- 230000000694 effects Effects 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
The invention provides an automatic speed limiting motor which is provided with three speed limiting plates and a rotary disc, wherein the three speed limiting plates are fixedly connected onto a shell of a motor main body and are uniformly distributed on the periphery of the rotary disc; the rotary disc can synchronously rotate along with a rotating shaft of the motor main body, three slideways are uniformly arranged on the rotary disc, a sliding rod is arranged in each slideway, a friction disc is arranged at the outer end of the sliding rod, and a spring is also arranged on the sliding rod in a sleeving way; when the rotating speed of the motor is too high, the centrifugal force applied onto the sliding rod and the friction disc is larger, and when the centrifugal force is larger than the elastic force of the spring, the sliding rod and the friction disc move towards the direction away from the rotating shaft along the slideway and are further in contact with the speed limiting plates; through the friction between the speed limiting plates and the friction disc, the rotating speed of the motor is reduced, and further, the role of automatically limiting the speed is played. On the basis, the invention also provides a crane with the automatic speed limiting motor.
Description
Technical field
The present invention relates to motor speed control technology, be specifically related to a kind of automatic speed-limiting motor; In addition, a kind of crane adopting this automatic speed-limiting motor is also related to.
Background technology
Motor is a kind of rotary electric machine, and converting electric energy is mechanical energy by it, and it mainly comprises a stator winding in order to the electromagnet winding or distribution that produce magnetic field and a rotating armature or rotor.Under the effect of stator winding rotating magnetic field, it has electric current to pass through and is subject to the effect in magnetic field and makes it rotate in armature squirrel-cage aluminium frame.
At present, motor has been widely used on various engineering goods as prime mover, the lifting mechanism, lathe, water pump, belt feeder, blower fan etc. of such as rice mill, gantry crane; 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 specifically the electrical motors rotating speed that detects of transducer is to certain threshold values; 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.
Summary of the invention
For solving the problems of the technologies described above, main purpose of the present invention be propose a kind of structure simple, with low cost, maintain easily and the automatic speed-limiting motor of adverse circumstances can be adapted to.And on this basis, the crane of this automatic speed-limiting motor of a kind of application is proposed.
The automatic speed-limiting motor that the present invention proposes comprises motor body, link, speed limit plate and rotating disk, described rotating disk is fixedly installed in the rotating shaft of described motor body, described link is fixedly connected with the shell of motor body, and three described speed limit plates to be arranged on link and to be evenly distributed on the periphery of rotating disk; Described rotating disk is evenly distributed with three slideways radially extended, in described slideway, is provided with slidably slide bar; The outer end of described slide bar is provided with frictional disk, and the inner of described slide bar is provided with baffle plate; Described slide bar is arranged with spring, and the outer end of described spring is resisted against on the periphery wall of rotating disk, and the inner of described spring is resisted against on described baffle plate.
In technical scheme further, described slideway is provided with limiting section, and described limiting section coordinates the stroke for limiting described slide bar with baffle plate.
In technical scheme further, the rubbing surface of described speed limit plate and frictional disk is all in cambered surface.
In technical scheme further, described frictional disk is made up of rubber.
In technical scheme further, described motor body is alternating current machine.
In technical scheme further, described slide bar is cylindrical or square column type.
The automatic speed-limiting motor that the present invention proposes is provided with three speed limit plates and rotating disk, and three speed limit plates are fixedly connected on the housing of motor body, and are evenly distributed on rotating disk periphery; Rotating disk can follow the rotating shaft synchronous axial system of motor body, and rotating disk is evenly provided with three slideways, is provided with slide bar in each slideway, slide bar outer end is provided with frictional disk, and slide bar is also arranged with spring; When motor speed is too high, the centrifugal force be subject at slide bar and frictional disk is larger, when centrifugal force is greater than the elastic force of spring, slide bar and frictional disk move along slideway to the direction away from rotating shaft, and then contact with speed limit plate, the friction of speed limit plate and frictional disk makes the rotating speed of motor reduce, and then plays the effect of automatic speed-limiting.
In addition, the present invention also proposes a kind of crane, is provided with the automatic speed-limiting motor of suspension hook, hoisting mechanism and above-mentioned any one; Described hoisting mechanism comprises reel and steel wire rope, and the one ends wound of described steel wire rope is on reel, and the other end is connected with suspension hook, and the described rotating shaft of automatic speed-limiting motor is coaxially connected with the reel of hoisting mechanism.
This crane by adopting above-mentioned automatic speed-limiting motor, can prevent drum speed too fast (the too fast meeting of drum speed cause steel wire rope to be involved in or emitting rate too fast, time serious, easily cause security incident), be conducive to job safety.
Accompanying drawing explanation
The structural scheme of mechanism of the automatic speed-limiting motor that Fig. 1 provides for the specific embodiment of the invention.
Fig. 2 is B-B direction cutaway view in Fig. 1.
Fig. 3 is the enlarged diagram of part A in Fig. 2.
Wherein: 1, rotating disk; 2, speed limit plate; 3, frictional disk; 4, motor body; 5, link; 6, rotating shaft; 7, spring; 8, slide bar; 9, baffle plate; 10, slideway; 11, limiting section.
Embodiment
For clear understanding design of the present invention, below in conjunction with accompanying drawing, specific embodiments of the invention are described in detail.
As shown in Figure 1, Figure 2 and Figure 3, the automatic speed-limiting motor that the present invention specifically implements proposition comprises motor body 4, link 5, speed limit plate 2 and rotating disk 1; Rotating disk 1 is arranged in the rotating shaft 6 of motor body 4 by flat key connection, and rotating disk 1 can follow rotating shaft 6 synchronous axial system; Link 5 is fixedly connected with the shell of motor body 4, and three speed limit plates 2 to be arranged on link 5 and centered by rotating shaft 6, to be evenly distributed on the periphery of rotating disk 1; Rotating disk 1 is evenly distributed with three slideways radially extended 10, in slideway 10, is provided with slidably slide bar 8; The outer end of slide bar 8 is provided with frictional disk 3, and the inner of slide bar 8 is provided with baffle plate 9; Slide bar 8 is arranged with spring 7, the outer end of spring 7 is resisted against on the periphery wall of rotating disk 1, and the inner of spring 7 is resisted against on baffle plate 9.During operation, rotating disk 1 is with rotating shaft 6 synchronous axial system, and under centrifugal action, slide bar 8 and frictional disk 3 have along slideway 10 and the trend of moving to the direction away from rotating shaft 6, and when rotating speed is lower, under the effect of spring 7, frictional disk 3 and speed limit plate 2 disengage; When turn up to a certain extent, under centrifugal action, slide bar 8 and frictional disk 3 radially outward moving along rotating disk 1, frictional disk 3 contacts with speed limit plate 2, and then produces and rub, and under frictional force effect, rotating shaft 6 is subject to resistance, thus rotating speed is reduced.
When frictional disk 3 and slide bar 8 stretch out too much, frictional disk 3 or slide bar 8 are likely stuck on speed limit plate 2, once the stuck frictional disk 3 of speed limit plate 2 or slide bar 8, rotating shaft 6 cannot be rotated, and motor body 4 can be caused to burn; For avoiding the generation of this situation, as shown in Figure 3, slideway 10 is provided with limiting section 11, limiting section 11 coordinates with baffle plate 9, thus the stroke of restriction slide bar 8.
In order to reach good friction effect, as shown in Figure 3, the rubbing surface of speed limit plate 2 and frictional disk 3 is all in cambered surface, and the center of arc surface is consistent with the center of rotation of rotating disk 1.Frictional disk 3 and speed limit plate 2 can adopt the with low cost and good material of resistance to wear to make, and are preferably rubber.
Above-mentioned slide bar 8 can have multiple different version, such as cylindrical or square column type; In order to prevent slide bar 8 from rotating, slide bar 8 is preferably square column type, and namely cross section is square cylinder; Certainly, cross section also can be adopted to be oval structure.
In addition, the present invention specifically implements and also proposes a kind of crane, and this crane is provided with suspension hook, hoisting mechanism and above-mentioned automatic speed-limiting motor; Hoisting mechanism comprises reel and steel wire rope, and the one ends wound of steel wire rope is on reel, and the other end is connected with suspension hook, and the rotating shaft 6 of automatic speed-limiting motor is coaxially connected with the reel of hoisting mechanism.This crane by adopting above-mentioned automatic speed-limiting motor, can prevent drum speed too fast (the too fast meeting of drum speed cause steel wire rope to be involved in or emitting rate too fast, time serious, easily cause security incident), be conducive to job safety.
The foregoing is only preferred embodiment of the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. an automatic speed-limiting motor, it is characterized in that, comprise motor body (4), link (5), speed limit plate (2) and rotating disk (1), described rotating disk (1) is fixedly installed in the rotating shaft (6) of described motor body (4), described link (5) is fixedly connected with the shell of motor body (4), and three described speed limit plates (2) are arranged on link (5) and go up and be evenly distributed on the periphery of rotating disk (1); Described rotating disk (1) is evenly distributed with three slideways radially extended (10), in described slideway (10), is provided with slidably slide bar (8); The outer end of described slide bar (8) is provided with frictional disk (3), and the inner of described slide bar (8) is provided with baffle plate (9); Described slide bar (8) is arranged with spring (7), the outer end of described spring (7) is resisted against on the periphery wall of rotating disk (1), and the inner of described spring (7) is resisted against on described baffle plate (9).
2. automatic speed-limiting motor according to claim 1, is characterized in that, described slideway (10) is provided with limiting section (11), and described limiting section (11) coordinates the stroke for limiting described slide bar (8) with baffle plate (9).
3. automatic speed-limiting motor according to claim 1, is characterized in that, the rubbing surface of described speed limit plate (2) and frictional disk (3) is all in cambered surface.
4. automatic speed-limiting motor according to claim 1, is characterized in that, described frictional disk (3) is made up of rubber.
5. automatic speed-limiting motor according to claim 1, is characterized in that, described motor body (4) is alternating current machine.
6. automatic speed-limiting motor according to claim 1, is characterized in that, described slide bar (8) is cylindrical or square column type.
7. a crane, is characterized in that, is provided with suspension hook, hoisting mechanism and the automatic speed-limiting motor described in any one of claim 1 to 6; Described hoisting mechanism comprises reel and steel wire rope, and the one ends wound of described steel wire rope is on reel, and the other end is connected with suspension hook, and described rotating shaft (6) is coaxially connected with the reel of hoisting mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410825703.8A CN104485776B (en) | 2014-12-28 | 2014-12-28 | Automatic speed-limiting motor and crane |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410825703.8A CN104485776B (en) | 2014-12-28 | 2014-12-28 | Automatic speed-limiting motor and crane |
Publications (2)
| Publication Number | Publication Date |
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| CN104485776A true CN104485776A (en) | 2015-04-01 |
| CN104485776B CN104485776B (en) | 2016-09-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410825703.8A Active CN104485776B (en) | 2014-12-28 | 2014-12-28 | Automatic speed-limiting motor and crane |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105375680A (en) * | 2015-12-09 | 2016-03-02 | 无锡江南奕帆电力传动科技股份有限公司 | Centrifugal device for alternating current and direct current dual-purpose motor |
| CN108429393A (en) * | 2018-05-28 | 2018-08-21 | 深圳市贝优通新能源技术开发有限公司 | A kind of motor with speed limiting function for new-energy automobile |
| CN111483954A (en) * | 2020-04-17 | 2020-08-04 | 宋伟友 | Hanging basket for construction machinery |
| CN111661751A (en) * | 2020-06-15 | 2020-09-15 | 颜肇宗 | Utilize centrifugal force principle's crane ship hoist cable stall auto-lock insurance structure |
| CN112618300A (en) * | 2020-12-04 | 2021-04-09 | 重庆大学附属肿瘤医院 | Cancer is alleviated painful and is used massage device |
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| CN201947111U (en) * | 2011-01-07 | 2011-08-24 | 巢湖顺枫风力发电科技有限公司 | Centrifugal automatic speed-limiting device for wind driven generator |
| JP4974327B2 (en) * | 2005-12-15 | 2012-07-11 | 株式会社デンソー | Method for manufacturing tube for heat exchanger and heat exchanger |
| CN202440264U (en) * | 2012-02-06 | 2012-09-19 | 青岛海西重机有限责任公司 | Electrical-energy type emergency back-up load releasing device of cane with power off |
| CN202475129U (en) * | 2011-12-28 | 2012-10-03 | 南京华翔风电能源科技有限公司 | Speed limiting device for wind driven generator |
| CN103615482A (en) * | 2013-12-03 | 2014-03-05 | 北京航空航天大学 | Micro-miniature type mechanical centrifugal friction speed limiter |
| CN203612920U (en) * | 2013-12-24 | 2014-05-28 | 无锡科通工程机械制造有限公司 | Speed governor |
| CN204271818U (en) * | 2014-12-28 | 2015-04-15 | 武汉联创恒业科技有限公司 | Automatic speed-limiting motor and crane |
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2014
- 2014-12-28 CN CN201410825703.8A patent/CN104485776B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP4974327B2 (en) * | 2005-12-15 | 2012-07-11 | 株式会社デンソー | Method for manufacturing tube for heat exchanger and heat exchanger |
| CN201947111U (en) * | 2011-01-07 | 2011-08-24 | 巢湖顺枫风力发电科技有限公司 | Centrifugal automatic speed-limiting device for wind driven generator |
| CN202475129U (en) * | 2011-12-28 | 2012-10-03 | 南京华翔风电能源科技有限公司 | Speed limiting device for wind driven generator |
| CN202440264U (en) * | 2012-02-06 | 2012-09-19 | 青岛海西重机有限责任公司 | Electrical-energy type emergency back-up load releasing device of cane with power off |
| CN103615482A (en) * | 2013-12-03 | 2014-03-05 | 北京航空航天大学 | Micro-miniature type mechanical centrifugal friction speed limiter |
| CN203612920U (en) * | 2013-12-24 | 2014-05-28 | 无锡科通工程机械制造有限公司 | Speed governor |
| CN204271818U (en) * | 2014-12-28 | 2015-04-15 | 武汉联创恒业科技有限公司 | Automatic speed-limiting motor and crane |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105375680A (en) * | 2015-12-09 | 2016-03-02 | 无锡江南奕帆电力传动科技股份有限公司 | Centrifugal device for alternating current and direct current dual-purpose motor |
| CN108429393A (en) * | 2018-05-28 | 2018-08-21 | 深圳市贝优通新能源技术开发有限公司 | A kind of motor with speed limiting function for new-energy automobile |
| CN108429393B (en) * | 2018-05-28 | 2019-11-01 | 浙江台州美多模具有限公司 | A kind of motor with speed limiting function for new-energy automobile |
| CN111483954A (en) * | 2020-04-17 | 2020-08-04 | 宋伟友 | Hanging basket for construction machinery |
| CN111661751A (en) * | 2020-06-15 | 2020-09-15 | 颜肇宗 | Utilize centrifugal force principle's crane ship hoist cable stall auto-lock insurance structure |
| CN112618300A (en) * | 2020-12-04 | 2021-04-09 | 重庆大学附属肿瘤医院 | Cancer is alleviated painful and is used massage device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104485776B (en) | 2016-09-14 |
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Effective date of registration: 20191104 Address after: Room 301-15, building 1, No.111, Guigu Er Road, Luoxing street, Jiashan County, Jiaxing City, Zhejiang Province Patentee after: Jiashan chuangyue Intellectual Property Service Co.,Ltd. Address before: 430073, No. 6, No. 6, No. 8, Fuxing Fuxing Pharmaceutical Park, No. 62, Optics Valley Road, East Lake New Technology Development Zone, Hubei, Wuhan Patentee before: WUHAN LIANCHUANG HENGYE SCIENCE & TECHNOLOGY CO.,LTD. |
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Application publication date: 20150401 Assignee: Jiaxing Tizhong Electronic Technology Co.,Ltd. Assignor: Jiashan chuangyue Intellectual Property Service Co.,Ltd. Contract record no.: X2022330000389 Denomination of invention: Automatic speed limiting motor and crane Granted publication date: 20160914 License type: Common License Record date: 20220810 |
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Effective date of registration: 20231008 Address after: Room 401-89, Building 1, No. 111 Guigu Second Road, Luoxing Street, Jiashan County, Jiaxing City, Zhejiang Province, 314100 (Residence application) Patentee after: Jiashan Luoxing Venture Capital Co.,Ltd. Address before: Room 301-15, building 1, No. 111, Guigu 2nd Road, Luoxing street, Jiashan County, Jiaxing City, Zhejiang Province Patentee before: Jiashan chuangyue Intellectual Property Service Co.,Ltd. |
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