CN201580937U - Mechanical overload protector - Google Patents
Mechanical overload protector Download PDFInfo
- Publication number
- CN201580937U CN201580937U CN2010200501572U CN201020050157U CN201580937U CN 201580937 U CN201580937 U CN 201580937U CN 2010200501572 U CN2010200501572 U CN 2010200501572U CN 201020050157 U CN201020050157 U CN 201020050157U CN 201580937 U CN201580937 U CN 201580937U
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- Prior art keywords
- shaft
- friction disc
- sleeve
- briquetting
- protective device
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- 230000001012 protector Effects 0.000 title abstract 4
- 230000003287 optical effect Effects 0.000 claims abstract description 7
- 230000001681 protective effect Effects 0.000 claims description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 229910002804 graphite Inorganic materials 0.000 claims description 6
- 239000010439 graphite Substances 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 230000008878 coupling Effects 0.000 abstract 3
- 238000010168 coupling process Methods 0.000 abstract 3
- 238000005859 coupling reaction Methods 0.000 abstract 3
- 230000007547 defect Effects 0.000 abstract 1
- 230000035945 sensitivity Effects 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- 208000034423 Delivery Diseases 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Abstract
The utility model discloses a mechanical overload protector which can overcome the defects that the mechanical noise is high and the parts can be deformed and damaged easily during the overload protection of the like products at present. The protector comprises a sleeve and a coupling shaft, an internal spline is arranged at one end of the sleeve and connected with a motor rotary shaft; internal threads and five grooves uniformly and radially distributed are formed on the inner cavity wall of the sleeve body at the other end of the sleeve; a flat potential shaft and an optical axis are sequentially arranged at the right end of the coupling shaft; the flat potential shaft is connected with an electric winch brake; a small circular positioning shaft and an external hexagonal shaft are sequentially arranged at the left end of the coupling shaft; a left pressing block, a left friction plate, a left friction disc, a right friction disc, a right friction plate, a right pressing block, a spring and an adjusting nut are sequentially arranged in the inner cavity of the sleeve body from the internal out; and the adjusting nut is screwed at the end port of the internal threads of the sleeve body. Compared with products in the prior art, the mechanical overload protector has the characteristics of sensitive overload protection, high bearing capacity and wide application range, and can be widely used with the electric winch.
Description
Technical field
The utility model relates to a kind of mechanical type overload protection device, especially refers to the overload protection device that the electric capstan product scope is used.
Background technology
The electric capstan product is equipped on cross country car, peasant movement automobile, yacht and other all kinds of extraordinary car and boat more, and it is the important device of car and boat self-help traction.Electric capstan when work, utilize the rotation of automotive battery electric energy CD-ROM drive motor, motor spindle drives winding drum by wirerope folding and unfolding traction object through the drop-gear box back of slowing down again, and the oneself rescues used during in order to the unexpected landing of car and boat, pitfall etc.Because working environment is changeable; required tractive force also has nothing in common with each other under the environment such as different landings, pitfall; but electric capstan product for each model; a maximum rated pulling force is all arranged; to guarantee to draw job security; eliminate safe hidden trouble, simultaneously effectively the protection traction electric machine because of the overload damage of generating heat, does not increase the service life.This type of relatively product such as State Intellectual Property Office on December 23rd, 2009 Granted publication, the patent No. is called the utility model patent of " the machine overload protection device of electric capstan " for the ZL200920114445.7 name, it " comprise and motor output shaft bonded assembly permanent seat, block nut, the internal cavity of permanent seat be provided with successively springing, pad, fixed plate, four balls, with brake equipment bonded assembly centrifugal film, adjustment sheet; Establish blind hole I on the fixed plate end face, its other end and pad offset; Four ball difference close-fittings are in four blind hole I; Establish four blind hole II on the end face of centrifugal film; Being spirally connected of adjustment sheet and permanent seat, its other end and block nut are spirally connected; Permanent seat is provided with registration device.This machine overload protection device when overload running, can avoid motor burnt out, not to reducer gear, vehicle frame, damage of steel cable." but this product also has weak point; when the overload phenomenon particularly takes place; after four blind hole II slippage of its four balls from the centrifugal film end face; along the slippage of centrifugal film end face; but behind moving about 90 degree of revolution; four balls can reenter four blind hole II of centrifugal film end face again, and as long as the overload behavior is not eliminated, four balls will enter, eject four blind hole II of centrifugal film end face repeatedly, so when overload not only easily caused ball and blind hole II distortion in the big but also ball repeated stock blind hole II edge of noise, has a strong impact on product reliability and service life.For this reason, people expect to invent a kind of overload protection sensitivity, noise is low, parts consumption is little, the mechanical type overload protective device product of long service life, and are required to satisfy with the supporting application of existing electric capstan product.
The utility model content
The technical problems to be solved in the utility model is defective and the deficiency that big, the yielding damage of parts of mechanical noise, product reliability descend fast when overcoming the overload protection that existing like product exists; provide to society that a kind of overload protection sensitivity, noise are low, parts consume mechanical type overload protective device product little, long service life, required to satisfy with the supporting application of existing electric capstan product.
The technical scheme that its technical matters that solves the utility model adopts is: the mechanical type overload protective device, comprise sleeve and coupking shaft, one end of described sleeve is provided with female splines and connects motor shaft, and other end cylinder lumen wall is provided with five grooves of negative thread and radial equipartition; The right-hand member of described coupking shaft is provided with flat potential shaft and optical axis successively, and described flat potential shaft is connected with the electric capstan brake; The left end of described coupking shaft is provided with little circular shaft in location and outer-hexagonal axle successively; Described sleeve cylinder lumen from-inner-to-outer is provided with left briquetting, left friction lining, left friction disc, right friction disc, right friction lining, right briquetting, spring and setting nut successively, and described setting nut is rotatably connected in the port of described sleeve cylindrical shell negative thread.
Described left briquetting and described right briquetting outer circle wall are evenly equipped with five and five corresponding to fixture blocks of groove of described sleeve cylinder lumen, and described left friction disc and described right friction disc are provided with and the corresponding to inner hexagonal hole of described outer-hexagonal axle.
The end face of described left friction disc and described right friction disc is evenly equipped with a plurality of through holes; The end face of described left briquetting and described right briquetting is evenly equipped with a plurality of apertures.
The described optical axis of described coupking shaft is provided with graphite oilless sintered-metal bearing, and described graphite oilless sintered-metal bearing is supported in bearing seat.
When the utility model mechanical type overload protective device surpassed rated load when the electric capstan tractive force, left friction lining produced slide relative to left friction disc, right friction lining to right friction disc, and left friction disc and right friction disc be transfixion then, promptly arrives the overload protection state.This stage, a plurality of through holes that are arranged at left friction disc and right friction disc end face so played good heat radiation and noise reduction effect because left friction lining easily produces frictional heat to left friction disc, right friction lining to right friction disc slide relative.When tractive force during less than rated load, left friction disc and left friction lining, right friction disc and right friction lining automatically return to synchronous slew mode again.Compare than prior art products, this product has the characteristics of overload protection sensitivity, load-carrying capacity height, applied range, and it is supporting to be widely used in electric capstan.
Description of drawings
Fig. 1 is the utility model product mounting structure scheme drawing.
Fig. 2 is the three-dimensional decomposition texture scheme drawing of the utility model product.
The specific embodiment
As depicted in figs. 1 and 2, the utility model mechanical type overload protective device comprises sleeve 1 that is connected with motor shaft and the coupking shaft 13 that is connected with the electric capstan brake; The left end of described coupking shaft 13 is provided with location roundlet axle 19 and outer-hexagonal axle 15 successively, and right-hand member is provided with flat potential shaft 14 and optical axis 21 successively, and described flat potential shaft 14 is connected with the electric capstan brake; One end of described sleeve 1 is provided with female splines 20 and connects motor shaft, and other end cylinder lumen wall is provided with five grooves 16 of negative thread 22 and radial equipartition; Described sleeve 1 cylinder lumen from-inner-to-outer is provided with left briquetting 2, left friction lining 5, left friction disc 3, right friction disc 6, right friction lining 4, right briquetting 7, spring 8 and setting nut 9 successively, and described setting nut 9 is rotatably connected in the port of described sleeve 1 cylindrical shell negative thread 22; Described left briquetting 2 and described right briquetting 7 outer circle walls are evenly equipped with five and five grooves of described sleeve 1 cylinder lumen, 16 corresponding to fixture blocks 17, are used for radial location; The end face of described left briquetting 2 and described right briquetting 7 is evenly equipped with a plurality of apertures 23; Described left friction disc 3 and described right friction disc 6 are provided with and described outer-hexagonal axle 15 corresponding to inner hexagonal holes 18, are used for radial location; The end face of described left friction disc 3 and described right friction disc 6 is evenly equipped with a plurality of through holes 11; The described optical axis 21 of described coupking shaft 13 is provided with graphite oilless sintered-metal bearing 12, to reduce operating noise, guarantees stability of rotation; Described graphite oilless sintered-metal bearing 12 is supported in bearing seat 10.
Continue in conjunction with the accompanying drawings the principle of work of summary the utility model product below.During assembling, adopt the high pressure technique for sticking to link into an integrated entity described left briquetting 2 and left friction lining 5, described right briquetting 7 and right friction lining 4 in advance, on described coupking shaft 13, be inserted in setting nut 9, spring 8, right briquetting 7 and right friction lining 4, right friction disc 6, left friction disc 3, left briquetting 2 and left friction lining 5 successively, place described sleeve 1 cylinder lumen then and fix by setting nut 9 and sleeve 1 cylindrical shell negative thread 22; By screwing or unscrew the position of setting nut 9 at described sleeve 1 cylinder lumen wall, make 8 pairs of right briquettings 7 of spring impose different pressure with right friction lining 4, right friction disc 6, left friction disc 3, left briquetting 2 and left friction lining 5, form different friction force.The location roundlet axle 19 of the utility model product coupking shaft 13 left ends can be located mutually with the motor shaft endoporus, realizes the accurate location with sleeve 1 female splines 20; Behind the motor starting, drive sleeves 1 rotation, because right briquetting 7 and five uniform fixture blocks 17 of left briquetting 2 outer circle walls are embedded in five grooves 16 of sleeve 1 cylinder lumen, so right briquetting 7 and left briquetting 2 and sleeve 1 rotate synchronously through female splines 20; This moment is again because left briquetting 2 and left friction lining 5, right briquetting 7 and right friction lining 4 bonding being integral, so 5 pairs of left friction discs 3 of left friction lining form friction force, 4 pairs of right friction discs 6 of right friction lining form friction force and drive left friction disc 3,6 rotations of right friction disc, inner hexagonal hole 18 through left friction disc 3 and right friction disc 6 drives coupking shaft 13 rotations, drives the electric capstan brake by coupking shaft 13 right-hand member flat potential shafts 14.When the electric capstan tractive force surpassed rated load, 5 pairs of left friction discs 3 of left friction lining, 4 pairs of right friction discs 6 of right friction lining produced slide relative, and left friction disc 3 and right friction disc 6 transfixions promptly arrive the overload protection state.During this stage, owing to 5 pairs of left friction discs 3 of left friction lining, 4 pairs of right friction disc 6 slide relative of right friction lining easily produce frictional heat, a plurality of through holes 11 that are arranged at left friction disc 3 and right friction disc 6 end faces have played good heat radiation and noise reduction effect.When tractive force during less than rated load, left friction disc 3 automatically returns to synchronous slew mode again, this product normal delivery moment of torsion, smooth working with left friction lining 5, right friction disc 6 with right friction lining 4.
As another embodiment, during the assembling of the utility model product, also can adopt the high pressure technique for sticking to link into an integrated entity described left friction lining 5 and left friction disc 3, described right friction lining 4 and right friction disc 6 in advance; When the electric capstan tractive force surpassed rated load, 2 pairs of left friction linings 5 of left briquetting, 7 pairs of right friction linings 4 of right briquetting produced slide relative, and left friction disc 3 and right friction disc 6 transfixions promptly arrive the overload protection state.When tractive force during less than rated load, left briquetting 2 automatically returns to synchronous slew mode again, this product normal delivery moment of torsion, smooth working with left friction lining 5, right briquetting 7 with right friction lining 4.This product can make load-carrying capacity promote greatly after described coupking shaft 13 is provided with left briquetting 2 and left friction lining 5, right briquetting 7 and a pair of like this friction pair of right friction lining 4, the field of application expansion.
Claims (4)
1. a mechanical type overload protective device comprises sleeve and coupking shaft, and an end of described sleeve is provided with female splines and connects motor shaft, and other end cylinder lumen wall is provided with five grooves of negative thread and radial equipartition; The right-hand member of described coupking shaft is provided with flat potential shaft and optical axis successively, and described flat potential shaft is connected with the electric capstan brake; It is characterized in that: the left end of described coupking shaft is provided with little circular shaft in location and outer-hexagonal axle successively; Described sleeve cylinder lumen from-inner-to-outer is provided with left briquetting, left friction lining, left friction disc, right friction disc, right friction lining, right briquetting, spring and setting nut successively, and described setting nut is rotatably connected in the port of described sleeve cylindrical shell negative thread.
2. mechanical type overload protective device according to claim 1; it is characterized in that: described left briquetting and described right briquetting outer circle wall are evenly equipped with five and five corresponding to fixture blocks of groove of described sleeve cylinder lumen, and described left friction disc and described right friction disc are provided with and the corresponding to inner hexagonal hole of described outer-hexagonal axle.
3. as mechanical type overload protective device as described in the claim 2, it is characterized in that: the end face of described left friction disc and described right friction disc is evenly equipped with a plurality of through holes; The end face of described left briquetting and described right briquetting is evenly equipped with a plurality of apertures.
4. as claim 1 to 3 mechanical type overload protective device as described in each, it is characterized in that: the described optical axis of described coupking shaft is provided with graphite oilless sintered-metal bearing, and described graphite oilless sintered-metal bearing is supported in bearing seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200501572U CN201580937U (en) | 2010-01-11 | 2010-01-11 | Mechanical overload protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200501572U CN201580937U (en) | 2010-01-11 | 2010-01-11 | Mechanical overload protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201580937U true CN201580937U (en) | 2010-09-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010200501572U Expired - Fee Related CN201580937U (en) | 2010-01-11 | 2010-01-11 | Mechanical overload protector |
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| Country | Link |
|---|---|
| CN (1) | CN201580937U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102700414A (en) * | 2012-05-22 | 2012-10-03 | 张智剑 | Automobile load controller |
| CN103441610A (en) * | 2013-09-10 | 2013-12-11 | 冠亚机械工业（昆山）有限公司 | Brake motor |
| CN105050933A (en) * | 2013-03-21 | 2015-11-11 | Mat马勒麦迭传动科技有限公司 | Overload protection device for cables |
| CN106586868A (en) * | 2016-12-30 | 2017-04-26 | 上海致远绿色能源股份有限公司 | Compact-type damping buffer device, working method and application thereof |
| TWI622549B (en) * | 2014-11-21 | 2018-05-01 | 力山工業股份有限公司 | Overload protection device for winch and winch including the same |
| CN108020363A (en) * | 2017-11-21 | 2018-05-11 | 顺德职业技术学院 | Big L/D ratio axial workpiece axial force on-line dynamic measurement device |
| CN111911559A (en) * | 2020-05-22 | 2020-11-10 | 伟速达（中国）汽车安全系统有限公司 | Integrated damping clutch mechanism |
| CN115676670A (en) * | 2022-09-13 | 2023-02-03 | 中信机电制造公司科研设计院 | Vehicle-mounted constant-tension electric winch |
-
2010
- 2010-01-11 CN CN2010200501572U patent/CN201580937U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102700414A (en) * | 2012-05-22 | 2012-10-03 | 张智剑 | Automobile load controller |
| CN105050933A (en) * | 2013-03-21 | 2015-11-11 | Mat马勒麦迭传动科技有限公司 | Overload protection device for cables |
| CN105050933B (en) * | 2013-03-21 | 2017-04-26 | Mat马勒麦迭传动科技有限公司 | Overload protection device for cables |
| CN103441610A (en) * | 2013-09-10 | 2013-12-11 | 冠亚机械工业（昆山）有限公司 | Brake motor |
| TWI622549B (en) * | 2014-11-21 | 2018-05-01 | 力山工業股份有限公司 | Overload protection device for winch and winch including the same |
| CN106586868A (en) * | 2016-12-30 | 2017-04-26 | 上海致远绿色能源股份有限公司 | Compact-type damping buffer device, working method and application thereof |
| CN108020363A (en) * | 2017-11-21 | 2018-05-11 | 顺德职业技术学院 | Big L/D ratio axial workpiece axial force on-line dynamic measurement device |
| CN108020363B (en) * | 2017-11-21 | 2023-06-13 | 顺德职业技术学院 | Online dynamic measuring device for axial force of shaft parts with large length-diameter ratio |
| CN111911559A (en) * | 2020-05-22 | 2020-11-10 | 伟速达（中国）汽车安全系统有限公司 | Integrated damping clutch mechanism |
| CN115676670A (en) * | 2022-09-13 | 2023-02-03 | 中信机电制造公司科研设计院 | Vehicle-mounted constant-tension electric winch |
| CN115676670B (en) * | 2022-09-13 | 2026-01-06 | 中信机电科研设计院(山西)有限公司 | Vehicle-mounted constant tension electric winch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100915 Termination date: 20110111 |