CN205136537U - A reducing friction pulley for climbing rope drive of device - Google Patents
A reducing friction pulley for climbing rope drive of device Download PDFInfo
- Publication number
- CN205136537U CN205136537U CN201520821135.4U CN201520821135U CN205136537U CN 205136537 U CN205136537 U CN 205136537U CN 201520821135 U CN201520821135 U CN 201520821135U CN 205136537 U CN205136537 U CN 205136537U
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- China
- Prior art keywords
- friction
- card
- friction disk
- dish
- central shaft
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- Withdrawn - After Issue
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- 230000009194 climbing Effects 0.000 title claims abstract description 14
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 abstract description 3
- 230000009347 mechanical transmission Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
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- Pulleys (AREA)
Abstract
The utility model relates to a reducing friction pulley for climbing rope drive of device belongs to small -size mechanical transmission mechanism technical field, and this reducing friction pulley constitutes by deciding friction disk, dynamic friction dish and two retainer nuts, wherein, decides friction disk and dynamic friction dish and inserts and close, and two retainer nuts spiral shell respectively fit and decide friction disk axle both ends, the reducing of friction pulley when deciding friction disk and dynamic friction dish and insert the different intervals realization rope that closes formation and twine, and through the fixed dynamic friction dish of two retainer nuts in the position of deciding the friction disk. This friction wheel can carry out the friction pulley according to the load size directly to be adjusted to exert climbing ware driving motor's performance more high -efficiently.
Description
Technical field
The utility model belongs to small-sized machine driving mechanism technical field, is specifically related to a kind of for the climbing device that is principle with rope-wheel friction driving, the reducing friction wheel changing reduction speed ratio by changing rope-wheel contact radius.
Background technique
For meeting the demand that the fields such as fire in high buildings rescue, outdoor mountain-climbing are elevated for the fast reserve of personnel's goods and materials, the whole world has produced multiple electric drive or fuel oil climbing device, and the type climbing device relies on the frictional force produced between the friction wheel of device and rope to carry out lifting heavy.Existing structure of friction wheel all cannot change contact radius, also cannot realize the change of velocity ratio simultaneously.As a utility model patent " rubbing device for rope drive " (application number/patent No.: 201210366934.8, the model utility people: Li Jing of 2012, Yuan Baiyin, Xu Bin), its structure as shown in Figure 1, by active friction wheel 1, driven friction wheel 2, , support 3 between upper axis, bottom between centers support 4, pinch roller 8, pinch roller rocking bar 9, stretched spring 10 forms, wherein, active friction wheel 1 and driven friction wheel 2 to be arranged between upper axis between support 3 and bottom between centers support 4, rope is connected on active friction wheel, through driven friction wheel active friction wheel and driven friction wheel be intertwined again, rope is compressed by pinch roller rocking bar 9 and stretched spring 10 by pinch roller 8, and through stretching out between driven friction wheel and pinch roller, form a free end.
Can see that the contact radius between this device active friction wheel and rope cannot change, also cannot realize the function of variable ratio.Therefore not strong to the adaptability of load.Want the change of implement device velocity ratio, if take the method for traditional speed-change gear box, then greatly can increase weight and the volume of single unit system, not meet climbing device miniaturization, light-weighted requirement.
Model utility content
The purpose of this utility model is that for a change existing product fixes reduction speed ratio present situation in the course of the work, a kind of reducing friction wheel of the rope drive for climbing device is proposed, this friction wheel can carry out the adjustment of friction wheel footpath according to load, thus more efficiently plays the performance of climbing device drive motor.
The reducing friction wheel of a kind of rope drive for climbing device that the utility model proposes, it is characterized in that, this reducing friction wheel is formed by determining friction disk, kinetic friction dish and two panels retainer nut, wherein, determine friction disk and kinetic friction dish plugs together, two panels retainer nut is screwed together in respectively and determines friction disk axle two ends, and the different spacing plugging together formation by determining friction disk and kinetic friction dish realizes the reducing of friction wheel when rope is wound around; And fix kinetic friction dish in the position of determining friction disk by two retainer nuts.
Compared with existing product, the utility model has the advantage of:
1. the friction wheel involved by the utility model can change and actually with rope contacts diameter of a circle size, can change according to load in using, thus more wide loading speed spectrum can be had, at utmost can play motor performance, obtain the highest whole efficiency.
2. the friction wheel mechanical structure involved by the utility model is simple and reliable, easy to operate, by the friction disk that slides axially, changes the relative position of two friction disks, and then changes actual contact circle radius.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing friction wheel.
Fig. 2 is each parts exploded perspective view of reducing friction wheel of the present utility model.
Fig. 3 of the present utility modelly determines friction disk structural representation.
Fig. 4 is kinetic friction dish structural representation of the present utility model.
Fig. 5 is retainer nut's structural representation of the present utility model.
Fig. 6 is friction wheel reducing schematic diagram of the present utility model, and wherein, the major diameter situation that (a) is friction wheel, (b) is friction wheel minor diameter situation.
Embodiment
The reducing friction wheel of a kind of rope drive for climbing device that the utility model proposes, by reference to the accompanying drawings and embodiment be described in detail as follows:
The reducing friction wheel that the utility model proposes as shown in Figure 2, form by determining friction disk 1, kinetic friction dish 2 and two panels retainer nut 3, wherein, determine friction disk 1 to plug together with kinetic friction dish 2, two panels retainer nut 3 is screwed together in respectively and determines friction disk 1 axle two ends, is realized the reducing of friction wheel when rope is wound around by the different spacing of determining the formation that friction disk 1 and kinetic friction dish 2 plug together; And fix kinetic friction dish in the position of determining friction disk by two retainer nuts 3.
The embodiment of above-mentioned each parts is respectively described below:
Determine the structure of friction disk as shown in Figure 3, be made up of card and central shaft, the cross section of card is a trapezoidal faces, the outer surface be connected with retainer nut is with axially vertical, the internal surface coordinated with dyanainic friction dish and outer surface press from both sides the plane of an angle, and (this angle determines the scope of friction wheel reducing, determine the span of this angle according to the friction wheel of practical application application, be generally 45 ° to 80 °.Card circumferentially has multiple (general 3 to 10) fan-shaped wedge hole 1-2 and the mutual uniform intervals of card entity 1-1 distributes; Central shaft is the quill shaft stretching out card two ends, in the one end of determining friction disk outer surface directly and retainer nut screw togather, the one end of determining friction disk internal surface screws togather through kinetic friction dish and another retainer nut, central shaft endoporus is processed with keyway 1-3, to be fixed on motor or reducer output shaft, axle two ends outer surface is processed with the draw-in groove 1-4 multiple spaced apart matched with kinetic friction dish, multiple fan-shaped wedge hole sites one_to_one corresponding of draw-in groove and card; Axle two ends outer surface is processed with the screw thread 1-5 matched with retainer nut.
The structure of kinetic friction dish as shown in Figure 4, it is with to determine grinding disk identical, also be made up of card and central shaft, wherein, the geomery of card is with to determine grinding disk identical, and namely the cross section of card is a trapezoidal faces, and the outer surface be connected with retainer nut is with axially vertical, with the plane of determining internal surface that grinding disk coordinates and outer surface and press from both sides an angle (being generally 45 ° to 80 °), card circumferentially has multiple fan-shaped wedge hole 2-2 and the mutual uniform intervals of card entity 2-1 distributes; Difference is the internal surface that central shaft only stretches out kinetic friction dish, and the internal orifice dimension of this central shaft matches with the draw-in groove external diameter determining friction disk central shaft; The axial wall of this central shaft is divided into the multiple fan-shaped wedge hole sites notch one to one with card, axle is formed and multiplely spaced apart to have and the latch 2-3 determining friction disk draw-in groove and match, can move axially along the draw-in groove determining friction disk.
Kinetic friction dish latch 2-3 with determine friction disk draw-in groove 1-4 and form Spielpassung, entity 1-1 and 2-1 and space 1-2 and the 2-2 of two friction disks stagger mutually, thus can guarantee that kinetic friction dish can move axially along determining friction disk.
Two retainer nut's structures are identical, as shown in Figure 5, are abnormity nut, and endoporus is processed with and the screw thread 3-1 determining friction disk axle and match, the some convenient protruding 3-2 rotated of peripheral distribution.
Two retainer nut's internal thread 3-1 are formed with the root surface screw thread 1-5 determining friction disk and coordinate.
During installation, kinetic friction dish is nested into and determines in friction disk, two retainer nuts are screwed on respectively determine friction disk axle two ends and compress to determine friction disk subsequently.
The structure of above-mentioned each parts and size material all can design according to the friction wheel of actual climbing device, can replace original sizing friction wheel.
Reducing principle of the present utility model as shown in Figure 6, by changing the axial distance between two friction disks, and then changes the draw-in groove degree of depth of two friction card compositions, thus changes rope-wheel contact diameter,
First side retainer nut is unscrewed during variable diameters, kinetic friction dish is slided to this nut direction, side, again both sides retainer nut is tightened after moving into place.As the major diameter situation that Fig. 6 (a) is friction wheel, (b) is friction wheel minor diameter situation.In figure, 4 is rope.
Claims (4)
1. the reducing friction wheel for the rope drive of climbing device, it is characterized in that, this reducing friction wheel is formed by determining friction disk, kinetic friction dish and two retainer nuts, wherein, determine friction disk and kinetic friction dish plugs together, two panels retainer nut is screwed together in respectively and determines friction disk axle two ends, and fixes kinetic friction dish in the position of determining friction disk by two retainer nuts.
2. reducing friction wheel as claimed in claim 1, it is characterized in that, describedly determine friction disk and be made up of card and central shaft, the cross section of card is a trapezoidal faces, outer surface and axes normal, internal surface and axis form an angle, and angular range is 45 ° ~ 80 °, and card circumferentially has multiple fan-shaped wedge hole and the mutual uniform intervals of card entity distributes; Central shaft is the quill shaft stretching out card two ends, directly screws togather with retainer nut in the one end of determining friction disk outer surface, and the one end of determining friction disk internal surface passes kinetic friction dish and another retainer nut screws togather; This central shaft endoporus is processed with keyway, and axle two ends outer surface is processed with the draw-in groove multiple spaced apart matched with kinetic friction dish, multiple fan-shaped wedge hole sites one_to_one corresponding of draw-in groove and card; Axle two ends outer surface is processed with the screw thread matched with retainer nut.
3. reducing friction wheel as claimed in claim 2, it is characterized in that, described kinetic friction dish is made up of card and central shaft, wherein, describedly determine friction disk and be made up of card and central shaft, the cross section of card is a trapezoidal faces, outer surface and axes normal, internal surface and axis form an angle, and angular range is 45 ° ~ 80 °, and card circumferentially has multiple fan-shaped wedge hole and the mutual uniform intervals of card entity distributes; Central shaft only stretches out the internal surface of kinetic friction dish, and the internal orifice dimension of this central shaft matches with the draw-in groove external diameter determining friction disk central shaft; The axial wall of this central shaft is divided into the multiple fan-shaped wedge hole sites notch one to one with card, axle is formed and multiplely spaced apart to have and the latch determined friction disk draw-in groove and match; Kinetic friction dish latch with determine friction disk draw-in groove and form Spielpassung, stagger mutually in entity and the space of two friction disks.
4. reducing friction wheel as claimed in claim 1, it is characterized in that, described two retainer nuts are abnormity nut, and internal orifice dimension matches with the central shaft external diameter determining friction disk, and be provided with and the screw thread determined friction disk axle and match, the some convenient projections rotated of peripheral distribution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520821135.4U CN205136537U (en) | 2015-10-22 | 2015-10-22 | A reducing friction pulley for climbing rope drive of device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520821135.4U CN205136537U (en) | 2015-10-22 | 2015-10-22 | A reducing friction pulley for climbing rope drive of device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205136537U true CN205136537U (en) | 2016-04-06 |
Family
ID=55622334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520821135.4U Withdrawn - After Issue CN205136537U (en) | 2015-10-22 | 2015-10-22 | A reducing friction pulley for climbing rope drive of device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205136537U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240491A (en) * | 2015-10-22 | 2016-01-13 | 清华大学 | Reducing friction wheel for rope transmission of climbing device |
-
2015
- 2015-10-22 CN CN201520821135.4U patent/CN205136537U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240491A (en) * | 2015-10-22 | 2016-01-13 | 清华大学 | Reducing friction wheel for rope transmission of climbing device |
| CN105240491B (en) * | 2015-10-22 | 2017-11-28 | 清华大学 | A kind of reducing friction pulley of rope drive for climbing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160406 Effective date of abandoning: 20171128 |
|
| AV01 | Patent right actively abandoned |