CN104485776B - Automatic speed-limiting motor and crane - Google Patents
Automatic speed-limiting motor and crane Download PDFInfo
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- CN104485776B CN104485776B CN201410825703.8A CN201410825703A CN104485776B CN 104485776 B CN104485776 B CN 104485776B CN 201410825703 A CN201410825703 A CN 201410825703A CN 104485776 B CN104485776 B CN 104485776B
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- slide bar
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- rotating disk
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Abstract
The present invention proposes a kind of automatic speed-limiting motor and 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 arranged with three slideways, is provided with slide bar in each slideway, and 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 being subject at slide bar and frictional disk is the biggest, when centrifugal force is more 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.On this basis, the present invention also proposes a kind of crane with this 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；It addition, further relate to a kind of crane using this automatic speed-limiting motor.
Background technology
Motor is a kind of rotary electric machine, and it converts electrical energy into mechanical energy, and it mainly includes one in order to produce the electric magnet winding in magnetic field or the stator winding of distribution and a rotating armature or rotor.Under the effect of stator winding rotating excitation field, its have in armature squirrel-cage aluminum frame electric current by and made it rotate by the effect in magnetic field.
At present, motor is widely used on various engineering goods as prime mover, such as the lifting mechanism of rice mill, gantry crane, lathe, water pump, belt feeder, blower fan etc.；In the operation process of motor, there is the situation of rotation speed change unavoidably, the situation of overspeed operation occurs the most sometimes；The hypervelocity of motor is easily caused motor and scraps, and serious situation may cause security incident, therefore, in some occasion, easily causes security incident.For this; national regulations " should arrange overspeed protective device for danger important, that load hypervelocity causes or the lifting mechanism that there is potential safety hazard "; this overspeed protective device carrys out control brake by electronic component and realizes; when the electrical motors rotating speed that specifically sensor detects is to certain threshold values; control brake is braked, within making motor return to safe speed of rotation scope.This ways of deceleration needs to rely on accurately, and reliable electrical equipment adds the manufacturing cost of engineering goods undoubtedly, low cost, require the highest under conditions of, have the suspicion of waste resource；And the maintenance of electrical equipment and maintenance requirement higher, in the case of environment is relatively severe, maintenance and frequency of maintenance are high, cause maintenance cost to remain high.
Summary of the invention
For solving above-mentioned technical problem, the main object of the present invention be propose a kind of simple in construction, with low cost, maintain easily and can adapt to the automatic speed-limiting motor of adverse circumstances.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 includes 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 fixing with the shell of motor body to be connected, and three described speed limit plates are arranged on link and are evenly distributed on the periphery of rotating disk；It is evenly distributed with three slideways radially extended on described rotating disk, 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；Being arranged with spring on described slide bar, 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 being provided with limiting section, described limiting section and baffle fit are for limiting the stroke of described slide bar.
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 generator.
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 arranged with three slideways, is provided with slide bar in each slideway, and 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 being subject at slide bar and frictional disk is the biggest, when centrifugal force is more 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.
It addition, the present invention also proposes a kind of crane, it is provided with the automatic speed-limiting motor of suspension hook, hoisting mechanism and any of the above-described；Described hoisting mechanism includes 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 rotating shaft of described automatic speed-limiting motor is coaxially connected with the reel of hoisting mechanism.
This crane, by using above-mentioned automatic speed-limiting motor, is possible to prevent drum speed too fast (the too fast meeting of drum speed causes steel wire rope to be involved in or emitting rate is too fast, time serious, easily causes security incident), beneficially 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 sectional 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.
Detailed description of the invention
For being clearly understood that the design of the present invention, below in conjunction with the accompanying drawings the specific embodiment of the present invention is described in detail.
As shown in Figure 1, Figure 2 and Figure 3, the automatic speed-limiting motor that the present invention has been embodied as proposing includes 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 fixing with the shell of motor body 4 to be connected, and three speed limit plates 2 are arranged on link 5 and are evenly distributed on the periphery of rotating disk 1 centered by rotating shaft 6；It is evenly distributed with three slideways radially extended 10 on rotating disk 1, 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；Being arranged with spring 7 on slide bar 8, 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 trend moved to the direction away from rotating shaft 6, and in the case of rotating speed is relatively low, under the effect of spring 7, frictional disk 3 disengages with speed limit plate 2；When turn up to a certain extent, under centrifugal action, slide bar 8 contacts with speed limit plate 2 with frictional disk 3 being moved radially outward along rotating disk 1, frictional disk 3, so produce friction, under frictional force effect, rotating shaft 6 by resistance so that rotating speed reduce.
When frictional disk 3 and slide bar 8 stretch out too much, frictional disk 3 or slide bar 8 are the most stuck on speed limit plate 2, once the stuck frictional disk of speed limit plate 23 or slide bar 8, and rotating shaft 6 will be unable to rotate, and motor body 4 can be caused to burn；For avoiding the generation of this situation, as it is shown on figure 3, be provided with limiting section 11 on slideway 10, limiting section 11 coordinates with baffle plate 9, thus limits the stroke of slide bar 8.
In order to reach preferable friction effect, as it is shown on 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 use the with low cost and preferable material of wearability to make, 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, it is square cylinder that slide bar 8 is preferably square column type, i.e. cross section；It is of course also possible to using cross section is oval structure.
It addition, the present invention has been embodied as also proposing a kind of crane, this crane is provided with suspension hook, hoisting mechanism and above-mentioned automatic speed-limiting motor；Hoisting mechanism includes 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 using above-mentioned automatic speed-limiting motor, is possible to prevent drum speed too fast (the too fast meeting of drum speed causes steel wire rope to be involved in or emitting rate is too fast, time serious, easily causes security incident), beneficially job safety.
The foregoing is only presently preferred embodiments of the present invention, all within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.
Claims (5)
1. an automatic speed-limiting motor, it is characterised in that include motor body (4), connect
Frame (5), speed limit plate (2) and rotating disk (1), described rotating disk (1) is fixedly installed on described electricity
In the rotating shaft (6) of machine body (4), outside described link (5) is with motor body (4)
Shell is fixing to be connected, and three described speed limit plates (2) are arranged on link (5) and above and are uniformly distributed
Periphery in rotating disk (1)；It is evenly distributed with three on described rotating disk (1) to radially extend
Slideway (10), is provided with slidably slide bar (8) in described slideway (10)；Described slide bar (8)
Outer end be provided with frictional disk (3), the inner of described slide bar (8) is provided with baffle plate (9)；
Being arranged with spring (7) on described slide bar (8), the outer end of described spring (7) is resisted against rotating disk
(1), on periphery wall, the inner of described spring (7) is resisted against on described baffle plate (9),
Limiting section (11), described limiting section (11) and baffle plate (9) it is provided with on described slideway (10)
Coordinate and be used for limiting the stroke of described slide bar (8), described speed limit plate (2) and frictional disk (3)
Rubbing surface all in cambered surface.
Automatic speed-limiting motor the most according to claim 1, it is characterised in that described in rub
Wiping dish (3) is made up of rubber.
Automatic speed-limiting motor the most according to claim 1, it is characterised in that described electricity
Machine body (4) is alternating current generator.
Automatic speed-limiting motor the most according to claim 1, it is characterised in that described cunning
Bar (8) is cylindrical or square column type.
5. a crane, it is characterised in that be provided with suspension hook, hoisting mechanism and right and want
Seek the automatic speed-limiting motor described in 1 to 4 any one；Described hoisting mechanism includes reel and steel wire
Rope, the one ends wound of described steel wire rope is on reel, and the other end is connected with suspension hook, described rotating shaft
(6) 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 |
Applications Claiming Priority (1)
| 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 CN104485776A (en) | 2015-04-01 |
| CN104485776B true 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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Families Citing this family (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 |
| 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 |
| CN111661751B (en) * | 2020-06-15 | 2022-02-01 | 东营胜华科贸有限公司 | 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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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2014
- 2014-12-28 CN CN201410825703.8A patent/CN104485776B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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| CN104485776A (en) | 2015-04-01 |
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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. |