CN2561755Y - Chain drawing belts and wheels with multiple steel strings - Google Patents
Chain drawing belts and wheels with multiple steel strings Download PDFInfo
- Publication number
- CN2561755Y CN2561755Y CN 02224518 CN02224518U CN2561755Y CN 2561755 Y CN2561755 Y CN 2561755Y CN 02224518 CN02224518 CN 02224518 CN 02224518 U CN02224518 U CN 02224518U CN 2561755 Y CN2561755 Y CN 2561755Y
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- CN
- China
- Prior art keywords
- towing
- steel wire
- groove
- traction sheave
- wheel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
Abstract
The utility model discloses a multiple parallel steel wire ropes chain type towing belt and a towing wheel, which relates to the towing devices for uplifting of the objects, in particular to an elevator towing device. The utility model is constituted by that a plurality of parallel steel wire ropes are fixedly connected to a towing belt and the groove towing wheel by a plastic chain knot. The utility model is applicable to the vertical uplifting of the objects and is the device which is particularly applicable to the up and down reciprocating towing movements of an elevator car. Compared with the traditional steel wire ropes and the towing wheels, the utility model can reduce the diameter of the towing wheel and lower the torque which is generated by loading due to the smaller diameter of single steel wire rope, so the structure of a dragging motor can be simplified and compacted and the manufacturing cost is reduced; compared with the steel belts, the number of the steel wire ropes is increased, so as to increase the contact area with a rope groove of the towing wheel, increase the friction between the steel wire ropes and the towing wheel and increase the meshing of the chain knob and the towing wheel groove, further to ensure no generation of slip of the towing belt and the towing wheel during the movements and improve the transmission efficiency.
Description
Technical field:
The utility model relates to the drag device that article promote, particularly elevator lifting drag device.
Background technology:
Existing elevator drag device, be suspended on for steel rope in the grooving of traction sheave, the radius of curvature of steel rope bending is identical with the traction sheave radius, for reducing the endurance failure that steel rope is in the repeated flex state for a long time, the national Specification traction sheave is not less than 40 with the ratio of wirerope diameter, when being 10mm as wirerope diameter, though the traction sheave diameter can not guarantee steel rope service life like this less than 400mm, but promote the moment increase that thing acts on the traction wheel shaft, calendar year 2001, U.S. Otis Elevator Company produced the clad steel belt, this cotton tie is made up of 12 strands of high strength wire ropes, outsourcing black polyurethane.Make the traction sheave diameter can be reduced to 100mm, one piece of " Chinese elevator " magazine the 6th phase of calendar year 2001 is entitled as " this Gen2 elevator device difficult to understand " article and claims that " this is the important breakthrough first on the lifting technology over 150 years." but because this cotton tie is that the smooth face of cylinder contacts with traction sheave, easily produce skidding, reduced driving efficiency, ectocrine product displacement precision.
Summary of the invention:
In order to solve the problem that prior art exists, the utility model provides a kind of chain type drag device.The drawing belt that is made of many steel ropes arranged side by side and chain link and have groove and device that the traction sheave of grooving is formed has reduced the traction sheave diameter, and can eliminate skidding.
Described in the utility model is a kind of drag device of elevator lifting, and it comprises drawing belt and the groove traction sheave of many steel ropes of arrangement in parallel through plastic compression chain link formation.It is characterized in that: described parallel many steel ropes side by side are laterally equidistant, longitudinally become chain link with the plastics plastic compression at interval, the involute tooth gear tooth bar theory of engagement is pressed at the chain link two ends, and its standard pressure angle is 20 °, pitch is more than 2 times of chain link length reach, to constitute many steel rope drawing belts arranged side by side.The outer circumference surface of described groove traction sheave has many steel wire rope grooves, process several grooves at cylindrical along bus, flute profile two ends on circumference are involute, grooved, slot pitch and many steel rope chain type drawing belt engagements arranged side by side, and the quantity of traction sheave grooving equates with steel rope quantity.
Chain type drawing belt and traction sheave that the utility model elevator drag device relates to, make many fine wire ropes through plastic links, be fixed into a whole drawing belt, every steel rope embeds the traction sheave grooving, its friction force increases, add the engagement of drawing belt chain link and traction sheave groove, the slide relative when having avoided motion has effectively improved the traction driving efficiency.
Description of drawings:
Fig. 1 is many steel rope chain type drawing belt figure arranged side by side; Constitute by parallel many steel ropes side by side and plastics plastic compression chain link.
Fig. 2 is groove traction sheave figure; The outer circumference surface of wheel has many steel wire rope grooves, and the cylindrical bus of wheel has several grooves.
The specific embodiment:
Referring to accompanying drawing 1, the thinner steel rope of a kind of many diameters is arrangement in parallel in one plane, and distance equates between rope, along steel rope longitudinal interval certain distance, be pitch, employing has certain intensity and elastomeric plastics plastic compression becomes chain link 2, and the involute tooth gear tooth bar theory of engagement is pressed at the chain link two ends, the standard pressure angle is got 20 °, pitch is more than 2 times of chain link length, for ease of design, and general round numbers, when making drawing belt, guarantee the uniform tension in order of every steel rope.
Referring to accompanying drawing 2, traction sheave 3 is with the difference of the traction sheave of prior art, cylindrical is processed several grooves 4, grooved and slot pitch and drawing belt 5 on pitch circle are complementary, drawing belt 5 is many, if the steel rope 1 that the n bar is thinner, constitute chain link 2 through the plastics plastic compression, be fixed into a single-piece drawing belt 5, its loading strength is n a times of wall scroll steel rope, when practical application, with some drawing belts 5, establish the m bar, common suspension lifting article, its loading strength are mn times of wall scroll steel rope 1, can guarantee the safety of lifting transportation.Traction sheave 3 and the engagement of drawing belt 5 on the gos increase the friction force between steel rope 1 and the traction sheave grooving 6, and the engagement of drawing belt chain link 2 and traction sheave groove 4 can make it not have slide relative at motion process.Because it is thinner to form the wall scroll wirerope diameter of drawing belt 5, can reduce the diameter of traction sheave 3, as use the steel rope of diameter as 3mm, the traction sheave diameter can be designed to 120mm, with diameter 10mm steel rope, the traction sheave diameter is that the traction sheave of 400mm is compared, and promotes same load, and the moment that the traction sheave bearing is subjected to only has only 30%.
Many block form steel rope chain type drawing belts that the utility model provides and groove traction sheave, make elevator at interior dragging system, especially gearless driving system simplifies design, reduces volume, reduce manufacturing cost, improve safe in operation and efficient and have remarkable efficacy.
Claims (3)
1, a kind of elevator lifting drag device, it comprises many steel ropes 1 of arrangement in parallel, plastic compression chain link 2, the traction sheave 3 of formation drawing belt 5 and band groove 4 is characterized in that, many ropes of described arrangement in parallel are laterally equidistant; Described plastic links 2 is longitudinally used plastic pressure forming for many steel ropes 1; The cylindrical of described groove traction sheave 3 is leant on face to be had many steel wire rope grooves 6, processes several grooves 4, grooving 6 and steel rope 1 engagement, groove 4 and 2 engagements of plastic compression chain link along the cylindrical bus.
2, elevator lifting drag device according to claim 1 is characterized in that, described chain link 2 is 20 by the angle of obliquity at its two ends of plastic pressing forming.
3, elevator lifting drag device according to claim 1 is characterized in that, described traction sheave 3, and along cylindrical bus machined grooves 4, groove depth, grooved, slot pitch and chain link 2 smoothly mesh.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02224518 CN2561755Y (en) | 2002-02-05 | 2002-02-05 | Chain drawing belts and wheels with multiple steel strings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02224518 CN2561755Y (en) | 2002-02-05 | 2002-02-05 | Chain drawing belts and wheels with multiple steel strings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2561755Y true CN2561755Y (en) | 2003-07-23 |
Family
ID=33701915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02224518 Expired - Fee Related CN2561755Y (en) | 2002-02-05 | 2002-02-05 | Chain drawing belts and wheels with multiple steel strings |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2561755Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110116952A (en) * | 2019-05-15 | 2019-08-13 | 中国恩菲工程技术有限公司 | Frictional mine hoisting system |
-
2002
- 2002-02-05 CN CN 02224518 patent/CN2561755Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110116952A (en) * | 2019-05-15 | 2019-08-13 | 中国恩菲工程技术有限公司 | Frictional mine hoisting system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Cai Guangyu Document name: Notification of Termination of Patent Right |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |