CN204628355U - The lifting appliance of a kind of overload protection arrangement and application thereof - Google Patents
The lifting appliance of a kind of overload protection arrangement and application thereof Download PDFInfo
- Publication number
- CN204628355U CN204628355U CN201520303193.8U CN201520303193U CN204628355U CN 204628355 U CN204628355 U CN 204628355U CN 201520303193 U CN201520303193 U CN 201520303193U CN 204628355 U CN204628355 U CN 204628355U
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- CN
- China
- Prior art keywords
- transmission shaft
- friction dish
- drive housing
- overload protection
- protection arrangement
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Abstract
The utility model discloses the lifting appliance of a kind of overload protection arrangement and application thereof, comprise drive housing and transmission shaft; Described drive housing is rotatably sleeved on transmission shaft, and described drive housing and transmission shaft all pass through bearing assemble; Kinetic friction dish by alternately compressing between described drive housing and transmission shaft is connected with static friction dish, described kinetic friction dish is connected with transmission shaft, described static friction dish is connected with drive housing, the bi-side of described kinetic friction dish and static friction dish are provided with compression plate, be provided with elastic member inside described compression plate and impacting force is applied to kinetic friction dish and static friction dish, the outside of at least one compression plate is provided with adjusting nut, described adjusting nut is bolted on transmission shaft, described drive housing and input gear are connected, and described transmission shaft and output gear are connected.The utility model is Purely mechanical structure, and be specially adapted to the moveable lifting appliance such as winch, mobile crane, reliability is high, and cost is low, easy to maintenance, and overload pressure is adjustable.
Description
Technical field
The utility model relates to and is a kind ofly applicable to winch, mobile crane and the other kinds overload protection arrangement of lifting machinery equipment and the lifting appliance of application thereof.
Background technique
Overload protection arrangement in tradition lifting appliance has Electronic control overload device; need energising just can carry out Torque Control; wiring and structure there is certain difficult design; or damage type mechanical overload protection device; carry out overload protection once or several times after overload protection arrangement scrap; cause impact can to like this subsequent normal operation of equipment, also greatly improve the user cost of equipment simultaneously.
In addition; existing overload protection arrangement is after the setting of predetermined load; change adjustment can not be carried out; Chinese invention patent application CN201310140197.4 discloses a kind of Torque-adjustable overload protection device; by the pressure between hydraulic pressure device for exerting adjustment friction plate, reach the object that overload protection arrangement corrects transmitting torque.But the processing technology of hydraulic pressure device for exerting requires strict, and structure is more complicated, needs to connect external hydraulic system in addition, the equipment such as car, mobile crane of movement is applied and is limited to.
Model utility content
The technical problem that the utility model solves is: the complex structure existed for existing overload protection arrangement, cost be high, apply the deficiency of being limited to; the lifting appliance of a kind of novel overload protection arrangement and application thereof is provided; feasibility and reliability higher; control accuracy is sensitive, and the mechanical type Work brake apparatus automatically can resumed work after overload disappears.
The utility model adopts following technological scheme to realize: a kind of overload protection arrangement, comprises drive housing 3 and transmission shaft 8;
Described drive housing 3 is rotatably sleeved on transmission shaft 8, and described drive housing 3 and transmission shaft 8 are all assembled by bearing 1;
Kinetic friction dish 5 by alternately compressing between described drive housing 3 and transmission shaft 8 is connected with static friction dish 6, described kinetic friction dish 5 is connected with transmission shaft 8, described static friction dish 6 is connected with drive housing 3, the bi-side of described kinetic friction dish 5 and static friction dish 6 are provided with compression plate 7, described compression plate 7 has elastic member 13 pairs of kinetic friction dishes 5 and static friction dish 6 applies impacting force, impacting force is applied to kinetic friction dish 5 and static friction dish 6, the outside of at least one compression plate 7 is provided with adjusting nut 4, described adjusting nut 4 is bolted on transmission shaft 8
Described drive housing 3 is connected with input gear 9, and described transmission shaft 8 is connected with output gear 10.
Further, described kinetic friction dish 5 inner ring is fixedly connected with transmission shaft 8 circumference by spline joint, and described static friction dish 6 outer ring is fixedly connected with drive housing 3 circumference by spline joint.
Further, described kinetic friction dish 5 is positioned at outermost, and described compression plate 7 is fixed on transmission shaft 8 by spline joint circumference.
Further, the periphery of described compression plate 7 is evenly equipped with some bending components and compresses as elastic member 13 pairs of friction disks.
Further, described drive housing 3 is sleeved on transmission shaft 8 by lining 2.
In the utility model, described kinetic friction dish 5 and static friction dish 6 adopt hygrometric state paper friction material.
The invention also discloses a kind of lifting appliance applying above-mentioned overload protection arrangement; comprise motor 11, winding drum 12 and overload protection arrangement; the input gear 9 of described overload protection arrangement is connected by gear train assembly with motor 11, and the output gear 10 of described overload protection arrangement is connected by gear train assembly with winding drum 12.
The utility model applies certain preloading to whole friction disc pack by compression plate, make there is certain static moment between kinematics and static friction dish, the size of static moment controls by regulating the resiliently deformable of elastic member on compression plate and the parameter of brake disc assembly, can from the amount of elastic deformation of axial adjustment elastic member by the adjusting nut outside adjustment compression plate.When the load torque being applied to the output gear on transmission shaft is less than the static moment of setting; drive housing moves drive axis by the kinematics and static friction dribbling compressed; when the load torque of the output gear on transmission shaft exceedes the static moment of setting; produce between kinematics and static friction dish and slide; the relative transmission shaft of drive housing produces relative rotation slip, thus reaches the object of overload protection motor.
Overload protection arrangement of the present utility model is Purely mechanical structure, protected-type is non-demolition formula overload protection, after overload disappears, can automatically recover normal work, reliability is high, be specially adapted to winch, the moveable lifting appliance such as mobile crane, it is convenient to be combined with lifting appliance, avoid that damage type overload protection arrangement is disposable or access times are extremely low, the problem that user cost is high, it also avoid the difficulty that electric or hydraulic type connect up in design, applied widely, friction disk adopts Wet-type paper friction material, there is comparatively ideal quiet coefficient of kinetic friction ratio, engagement is steadily soft, noise is little, the features such as protection mating material, and transmitting torque ability is strong, life-span is long, hygrometric state paper base material wear extent is minimum, effectively avoid pollution lubricating oil, the pretightening force of kinematics and static friction dish is regulated by adjusting nut.
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is the assembling schematic diagram of overload protection arrangement.
Fig. 2 is compression plate 7 structural representation of the present utility model.
Fig. 3 is the structural scheme of mechanism of the lifting appliance of application overload protection arrangement.
Number in the figure: 1-bearing, 2-lining, 3-drive housing, 4-adjusting nut, 5-kinetic friction dish, 6-static friction dish, 7-compression plate, 8-transmission shaft, 9-input gear, 10-output gear, 11-motor, 12-winching barrel, 13-elastic member.
Embodiment
Embodiment 1
See Fig. 1, a kind of overload protection arrangement, comprises drive housing 3, transmission shaft 8, kinetic friction dish 5, static friction dish 6, input gear 9 and output gear 10.
Drive housing 3 is rotatably sleeved on transmission shaft 8 by lining 2, and drive housing 3 and transmission shaft 8 are all by the fixing assembling of bearing 1, kinetic friction dish 5 by alternately compressing between drive housing 3 and transmission shaft 8 is connected with static friction dish 6, kinetic friction dish 5 is connected with transmission shaft 8, static friction dish 6 is connected with drive housing 3, the bi-side of kinetic friction dish 5 and static friction dish 6 are provided with compression plate 7, compression plate 7 has elastic member 13 pairs of kinetic friction dishes 5 and static friction dish 6 applies impacting force, impacting force is applied to kinetic friction dish 5 and static friction dish 6, the outside of one of them compression plate 7 is by the step axially locating on rotatingshaft, the outside of another compression plate 7 is provided with adjusting nut 4, adjusting nut 4 is bolted on transmission shaft 8, by the amount of deformation of the elastic member on adjusting nut 4 axial adjustment compression plate 7.
Drive housing 3 and input gear 9 are connected, and transmission shaft 8 and output gear 10 are connected, and input gear 9 and drive housing 3 can adopt one-body molded, transmission shaft 8 also can adopt gear shaft form and output gear 10 one-body molded.
Kinetic friction dish 5 inner ring is fixedly connected with transmission shaft 8 circumference by spline joint, and static friction dish 6 outer ring is fixedly connected with drive housing 3 circumference by spline joint.Kinetic friction dish 5 is positioned at outermost, and compression plate 7 is fixed on transmission shaft 8 by spline joint circumference, and servo-actuated friction disk 5 together rotates, and avoids the fretting wear between compression plate and friction disk.
Kinetic friction dish 5 and static friction dish 6 adopt hygrometric state paper friction material; mainly with vegetable fiber, reinforcing material, crystal oxide ore material, antifriction material, Bond, frictional property regulator, etc. composition; the technological forming of framework material papermaking based on fiber; there is comparatively ideal quiet coefficient of kinetic friction ratio, engagement is soft steadily, noise is little, protect the features such as mating material; and transmitting torque ability is strong, long service life.
Kinetic friction dish 5 plays rotation with one by spline joint on transmission shaft 1, as shown in Figure 2, the uniform some bending parts of periphery of compression plate 7 are as elastic member 13, given between whole friction disk by the elastic member 13 of compression plate 7 during assembling and apply certain preloading, make brake disc assembly have certain static moment, the size of static moment realizes by regulating the adjusting nut 4 outside compression plate 7.When the load torque suffered by the output gear on transmission shaft exceedes the static moment set between friction disk, produce relative rotation between drive housing and transmission shaft, thus reach the object of overload protection.
Embodiment 2
In conjunction with see Fig. 3; in Application Example 1, the lifting appliance of overload protection arrangement comprises motor 11, winding drum 12 and overload protection arrangement; the input gear 9 of overload protection arrangement is connected by gear train assembly with motor 11, and the output gear 10 of overload protection arrangement is connected by gear train assembly with winding drum 12.
After overload protection arrangement assembles, first set the overload torque between kinematics and static friction dish, when the torque of transmitting is less than the overload torque of setting, input gear 3 and output gear 8 together rotate, geo-stationary between kinematics and static friction dish; When carry-over moment exceedes the overload torque of setting, the raw relative sliding of kinematics and static friction hair updo, input gear 3 and output gear 8 relatively rotate, and realize overload protection, prevent motor from loading suddenly and cause damaging, protect motor.Transmit moment return to be less than overload torque time, kinematics and static friction dish geo-stationary again, motor is normally to winding drum transmitting torque.
Above-described embodiment is the utility model preferably mode of execution; but mode of execution of the present utility model is not restricted to the described embodiments; change, the modification done under other any does not deviate from Spirit Essence of the present utility model and principle, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection domain of the present utility model.
Claims (7)
1. an overload protection arrangement, is characterized in that: comprise drive housing (3) and transmission shaft (8);
Described drive housing (3) is rotatably sleeved on transmission shaft (8), and described drive housing (3) and transmission shaft (8) are all assembled by bearing (1);
Kinetic friction dish (5) by alternately compressing between described drive housing (3) and transmission shaft (8) is connected with static friction dish (6), described kinetic friction dish (5) is connected with transmission shaft (8), described static friction dish (6) is connected with drive housing (3), the bi-side of described kinetic friction dish (5) and static friction dish (6) are provided with compression plate (7), described compression plate (7) has elastic member (13) and applies impacting force to kinetic friction dish (5) and static friction dish (6), the outside of at least one compression plate (7) is provided with adjusting nut (4), described adjusting nut (4) is bolted on transmission shaft (8),
Described drive housing (3) and input gear (9) are connected, and described transmission shaft (8) and output gear (10) are connected.
2. a kind of overload protection arrangement according to claim 1; described kinetic friction dish (5) inner ring is fixedly connected with transmission shaft (8) circumference by spline joint, and described static friction dish (6) outer ring is fixedly connected with drive housing (3) circumference by spline joint.
3. a kind of overload protection arrangement according to claim 2, described kinetic friction dish (5) is positioned at outermost, and described compression plate (7) is fixed on transmission shaft (8) by spline joint circumference.
4. a kind of overload protection arrangement according to claim 1, the periphery of described compression plate (7) is evenly equipped with some bending components and compresses friction disk as elastic member (13).
5. a kind of overload protection arrangement according to claim 1, described drive housing (3) is sleeved on transmission shaft (8) by lining (2).
6. a kind of overload protection arrangement according to any one of claim 1-5, described kinetic friction dish (5) and static friction dish (6) adopt hygrometric state paper friction material.
7. the lifting appliance of the overload protection arrangement of an application rights requirement according to any one of 1-6; it is characterized in that: comprise motor (11), winding drum (12) and overload protection arrangement; the input gear (9) of described overload protection arrangement is connected by gear train assembly with motor (11), and the output gear (10) of described overload protection arrangement is connected by gear train assembly with winding drum (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520303193.8U CN204628355U (en) | 2015-05-12 | 2015-05-12 | The lifting appliance of a kind of overload protection arrangement and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520303193.8U CN204628355U (en) | 2015-05-12 | 2015-05-12 | The lifting appliance of a kind of overload protection arrangement and application thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204628355U true CN204628355U (en) | 2015-09-09 |
Family
ID=54047389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520303193.8U Expired - Fee Related CN204628355U (en) | 2015-05-12 | 2015-05-12 | The lifting appliance of a kind of overload protection arrangement and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204628355U (en) |
-
2015
- 2015-05-12 CN CN201520303193.8U patent/CN204628355U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Hu Chunkai Inventor after: Hu Tianlong Chak Inventor after: Ruan Li Inventor after: Hong Siyang Inventor after: Zuo Jinlv Inventor before: Hu Chunkai Inventor before: Hu Tianlong pool space Inventor before: Ruan Li Inventor before: Hong Siyang Inventor before: Zuo Jinlv |
|
| COR | Change of bibliographic data | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150909 Termination date: 20190512 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |