CN1415528A - Improved design scheme for critical component attrition insertion pad of safety tongs in progressive type elevator - Google Patents
Improved design scheme for critical component attrition insertion pad of safety tongs in progressive type elevator Download PDFInfo
- Publication number
- CN1415528A CN1415528A CN 02145616 CN02145616A CN1415528A CN 1415528 A CN1415528 A CN 1415528A CN 02145616 CN02145616 CN 02145616 CN 02145616 A CN02145616 A CN 02145616A CN 1415528 A CN1415528 A CN 1415528A
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- China
- Prior art keywords
- friction
- critical component
- attrition
- friction liner
- design scheme
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- 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.)
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- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
An improved friction cushion as a key part of the progressive high-safety tong for elevator features that its friction surface is improved from rough surface to smooth one and its horizontal slots are changed to vertical ones. Its advantages are higher friction force and no skid.
Description
This programme relates to the elevator safety technology.
The elevator of working vertically, particularly in quick passenger lift (load about 3 tons and speed are between 1.0 to 2.0m/s), all need be provided with when preventing that lift car from hanging fast in contingency, can make it the progressive safety gear that gradually stops fast.Regulation according to " " elevator manufacturing and safety standard " GB/T588-1995 " GB, when the accident of meeting accident, the lift car slip velocity is greater than 150% o'clock of command speed, the progressive safety gear startup that is about to begin, impel the friction liner to be close to cage guide, force the fast short stopping of car to stop.
In order to increase the friction dynamics between friction liner and the cage guide, common attrition surface one side, the design plan of decorative pattern face that imitation non-metal abrasives often adopts or the tooth bar face vertical with sense of motion at the friction liner of making by metal.
Yet, actual conditions are: the friction liner that adopts above-mentioned design plan, with the friction process of cage guide in, because the many hard particles shape materials that make that the friction liner is easy to produce because of coming off with the cage guide friction, just in time just be stored in the non-perpendicular gap space of decorative pattern face or the horizontal rack face vertical with the elevator cab movement direction, they at any time can be along with the relative motion of friction liner and cage guide, get between the aspect that friction liner and cage guide be close to, become numerous " balls " that lower the two friction dynamics, and then cause " skidding " phenomenon between the two, can not lift car gradually be stopped fast.
This programme is by inquiring into the improvement design to progressive safety gear critical component " friction liner ", improve its friction dynamics to greatest extent and alleviate above-mentioned " skidding " phenomenon, reaching the purpose of the practicality that improves its design-calculated reasonableness and use.
This programme is achieved in that
On the attrition surface of friction liner, except being provided with structure hole (being used for the fastening location of screw), have only vertical or less than vertical 15 the degree grooves, and the cross section of these grooves should be much larger than the friction particulate matter maximum radial cross section that comes off, at least more than 5 times, purpose is to make that the particulate matter that is scattered in wherein is easy to therefrom landing.
This programme characteristics compared with the prior art:
Because the design of the attrition surface that the friction liner of this programme contacts with cage guide, adopt: only be provided with the smooth flat of the vertical groove of establishing for being scattered of friction hard particles, created condition for slowing down above-mentioned " skidding " phenomenon (stop temporarily to store friction come off the existence of non-vertical groove of particulate matter).
Fig. 1 has illustrated " friction liner " position relation between position and they and the cage guide in progressive safety gear.
The structure that Fig. 2 has illustrated a kind of " friction liner ".
1: cage guide; 2: the friction liner; 3: the contract piece; 4: tong arm; 5: the disk spring group; 6: the pincers seat; H: vertical groove; M: with the attrition surface of " 1 "; K: structure hole.
Two sides of the guide rail vertical with Fig. 1 picture [1] respectively have a friction liner [2], and every friction liner [2] all is to pass and with the fastening location of contract piece [3] from the structure hole [K] of its attrition surface [M] side by two screws.
When elevator normally moved, friction liner [2] remained on 2.5 mm distance usually with the gap of guide rail [1], and when the lift car that meets accident glided fast, the friction liner [2] of guide rail two sides will be driven automatic clamping guide rail [1].At this moment, the hard particles shape material that friction liner [2] comes off with guide rail [1] friction, major part will be scattered from the avris of friction liner [2] and its vertical groove [H], be difficult for becoming " ball " between friction liner [2] and the guide rail [1], reduce the condition created significantly for making the two phenomenon of " skidding " in the friction process.
Claims (2)
1. the improvement design plan of an elevator progressive safety gear critical component " friction liner ": on the attrition surface [M] of friction liner [1], except being provided with structure hole [K], also be provided with vertical or less than the grooves [H] of vertical 15 degree.
2. according to the improvement design plan of the described a kind of elevator progressive safety gear critical component of claim 1 " friction liner ", it is characterized in that: described vertical groove [H].Its cross section is greater than come off 5 times of particulate matter maximum radial cross section of friction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02145616 CN1415528A (en) | 2002-10-16 | 2002-10-16 | Improved design scheme for critical component attrition insertion pad of safety tongs in progressive type elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02145616 CN1415528A (en) | 2002-10-16 | 2002-10-16 | Improved design scheme for critical component attrition insertion pad of safety tongs in progressive type elevator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1415528A true CN1415528A (en) | 2003-05-07 |
Family
ID=4750945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02145616 Pending CN1415528A (en) | 2002-10-16 | 2002-10-16 | Improved design scheme for critical component attrition insertion pad of safety tongs in progressive type elevator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1415528A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103523633A (en) * | 2013-10-22 | 2014-01-22 | 杭州沪宁电梯配件有限公司 | Elevator clamping rail device |
| CN104229589A (en) * | 2014-08-28 | 2014-12-24 | 南通爱利特机电制造有限公司 | High-safety progressive elevator safety gear |
-
2002
- 2002-10-16 CN CN 02145616 patent/CN1415528A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103523633A (en) * | 2013-10-22 | 2014-01-22 | 杭州沪宁电梯配件有限公司 | Elevator clamping rail device |
| CN103523633B (en) * | 2013-10-22 | 2015-09-09 | 杭州沪宁电梯配件有限公司 | A kind of elevator rail clamping device |
| CN104229589A (en) * | 2014-08-28 | 2014-12-24 | 南通爱利特机电制造有限公司 | High-safety progressive elevator safety gear |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |