CN105329735A - Speed limiter - Google Patents
Speed limiter Download PDFInfo
- Publication number
- CN105329735A CN105329735A CN201510872476.9A CN201510872476A CN105329735A CN 105329735 A CN105329735 A CN 105329735A CN 201510872476 A CN201510872476 A CN 201510872476A CN 105329735 A CN105329735 A CN 105329735A
- Authority
- CN
- China
- Prior art keywords
- switch
- rope sheave
- speed limiter
- connection block
- rope 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
- B66B5/044—Mechanical overspeed governors
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
Abstract
The invention relates to an elevator safety brake device, in particular to a speed limiter. The speed limiter comprises a fixed base, a rope wheel connecting base movably connected with the fixed base and a rope wheel arranged on the rope wheel connecting base, wherein one end, close to the rope wheel connecting base, of the fixed base is provided with a safety switch; the rope wheel connecting base moves around the fixed base through a movable nut; a switch knockout plate is arranged on the movable nut in a sleeving mode; and the switch knockout plate and the safety switch are correspondingly arranged. According to the speed limiter, weight is not required to increase, and the safety switch and the switch knockout plate are matched for action, so that reliability and stability are improved. Besides, the speed limiter is reasonable in design, simple in structure, lower in cost and convenient in mounting and dismounting.
Description
Technical field
The present invention relates to a kind of elevator safety brake device, especially a kind of velocity limiter.
Background technology
Velocity limiter is when the running velocity of elevator exceedes rated speed of lift certain value, the safety device that its action can cause safety tongs to work.As can be seen from definition, velocity limiter is the one of elevator overspeed protecting device, and effect is when elevator overspeed being detected, to safety and firing mechanism signal to protect elevator.
Current existing velocity limiter is generally mounted between lift facility.Existing velocity limiter generally adopts centrifugal block for clutch use principle, as shown in Figure 1, the car 3 be located in guide rail 4 drives governor sheave 7 to rotate by speed limiter wire rope 2, and speed limiter wire rope 2 is fixed on car 3 by safety tongs 1, and governor sheave 7 is fixed on velocity limiter 6; Car 3 top is connected with the traction steel-cable 5 by traction sheave 8.Governor sheave 7 is provided with centrifugal device, when governor sheave 7 rotates, under the influence of centrifugal force, the deformation of elastic element of centrifugal device produces a displacement, when reaching the first displacement of elastic element setting, the mechanism's activating electrical switch on centrifugal device, to elevator electric signal; If the running velocity of car 3 continues to rise, the rotating speed of rope sheave 7 is driven to increase, under the influence of centrifugal force, the elastic element of centrifugal device continues distortion, when reaching second displacement of elastic element setting of centrifugal device, and the mechanical locking mechanism action on centrifugal device, rope sheave 7 is stopped operating, now speed limiter wire rope 2 rubs on governor sheave 7, produces friction force, provides mechanical signal.
In Fig. 1, when traction steel-cable 5 ruptures or other reasons causes lift car 3 to exceed the speed limit, the first action of electric switch of velocity limiter 6, disconnects safety return circuit, make traction sheave 8 stop motion, if lift car 3 does not stop, running velocity continues to improve the responsiveness setting value reaching velocity limiter 6, then the mechanical action device of velocity limiter 6 triggers, velocity limiter 6 is by stopping rope sheave 7, limit speed for braking condition device steel rope 2, triggering secure clamps 1 action, and lift car 3 is stopped.
Existing velocity limiter can only exceed command speed action, can not lower than action under command speed, can not to turn an angle lower action at velocity limiter.Limit the application of velocity limiter.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides a kind of while there is overspeed protection, possessing lower than command speed action, or the velocity limiter of function of the lower action that turns an angle at velocity limiter.
The rope sheave that velocity limiter of the present invention comprises permanent seat, the rope sheave Connection Block be flexibly connected with described permanent seat and is arranged on described rope sheave Connection Block, described permanent seat is provided with safety switch near one end of rope sheave Connection Block, described rope sheave Connection Block is movable around described permanent seat by traveling nut, on described traveling nut, socket switch re-packs, and described switch re-packs arrange corresponding with safety switch.Further, the side of described rope sheave is provided with dust boot, and described dust boot is provided with dustproof brush.The present invention has following beneficial effect: governor tension pulley assembly of the present invention, comprise permanent seat, the rope sheave Connection Block be flexibly connected with permanent seat and the rope sheave be arranged on rope sheave Connection Block, and be provided with safety switch near one end of rope sheave Connection Block and switch re-packs at permanent seat; The present invention without the need to increasing own wt, and can make safety switch and switch re-pack interoperation, and reliability and stability all improve.In addition, the present invention have reasonable in design, structure simple, reduce costs, easy installation and removal.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of existing elevator governor protection system;
Fig. 2 is the structural representation of the embodiment of the present invention.
Detailed description of the invention
As shown in Figure 2, for the rope sheave that velocity limiter provided by the invention comprises permanent seat, the rope sheave Connection Block be flexibly connected with described permanent seat and is arranged on described rope sheave Connection Block, described permanent seat is provided with safety switch near one end of rope sheave Connection Block, described rope sheave Connection Block is movable around described permanent seat by traveling nut, on described traveling nut, socket switch re-packs, and described switch re-packs arrange corresponding with safety switch.
In the present embodiment, the side of described rope sheave is provided with dust boot, and described dust boot is provided with dustproof brush.
The foregoing is only the preferred embodiments of the present invention; not thereby the scope of the claims of the present invention is limited; every utilize specification sheets of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (2)
1. velocity limiter, it is characterized in that: the rope sheave comprising permanent seat, the rope sheave Connection Block be flexibly connected with described permanent seat and be arranged on described rope sheave Connection Block, described permanent seat is provided with safety switch near one end of rope sheave Connection Block, described rope sheave Connection Block is movable around described permanent seat by traveling nut, on described traveling nut, socket switch re-packs, and described switch re-packs arrange corresponding with safety switch.
2. velocity limiter as claimed in claim 1, it is characterized in that: the side of described rope sheave is provided with dust boot, described dust boot is provided with dustproof brush.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510872476.9A CN105329735A (en) | 2015-12-01 | 2015-12-01 | Speed limiter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510872476.9A CN105329735A (en) | 2015-12-01 | 2015-12-01 | Speed limiter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105329735A true CN105329735A (en) | 2016-02-17 |
Family
ID=55280553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510872476.9A Pending CN105329735A (en) | 2015-12-01 | 2015-12-01 | Speed limiter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105329735A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2098492U (en) * | 1991-08-28 | 1992-03-11 | 侯庆祥 | Overrunning governor for lift |
| DE20103158U1 (en) * | 2001-02-22 | 2001-09-27 | Müller, Wolfgang T., 78315 Radolfzell | Multi-stage, position-controlled, responsive and precise triggering speed limiter for elevators |
| CN2611337Y (en) * | 2003-04-09 | 2004-04-14 | 宁波申菱电梯配件有限公司 | Two-way governor of elevator |
| CN2693725Y (en) * | 2004-04-14 | 2005-04-20 | 河北东方机械厂 | Two-way acting speed limiter |
| CN2758217Y (en) * | 2004-11-22 | 2006-02-15 | 广州广日电梯工业有限公司 | Single direction mechanical action speed limiter possessing bidirection function |
| CN204549702U (en) * | 2015-03-06 | 2015-08-12 | 苏州科达液压电梯有限公司 | A kind of elevator governor |
-
2015
- 2015-12-01 CN CN201510872476.9A patent/CN105329735A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2098492U (en) * | 1991-08-28 | 1992-03-11 | 侯庆祥 | Overrunning governor for lift |
| DE20103158U1 (en) * | 2001-02-22 | 2001-09-27 | Müller, Wolfgang T., 78315 Radolfzell | Multi-stage, position-controlled, responsive and precise triggering speed limiter for elevators |
| CN2611337Y (en) * | 2003-04-09 | 2004-04-14 | 宁波申菱电梯配件有限公司 | Two-way governor of elevator |
| CN2693725Y (en) * | 2004-04-14 | 2005-04-20 | 河北东方机械厂 | Two-way acting speed limiter |
| CN2758217Y (en) * | 2004-11-22 | 2006-02-15 | 广州广日电梯工业有限公司 | Single direction mechanical action speed limiter possessing bidirection function |
| CN204549702U (en) * | 2015-03-06 | 2015-08-12 | 苏州科达液压电梯有限公司 | A kind of elevator governor |
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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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160217 |
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| RJ01 | Rejection of invention patent application after publication |