CN202558407U - Lift speed limiting device - Google Patents
Lift speed limiting device Download PDFInfo
- Publication number
- CN202558407U CN202558407U CN2012202148762U CN201220214876U CN202558407U CN 202558407 U CN202558407 U CN 202558407U CN 2012202148762 U CN2012202148762 U CN 2012202148762U CN 201220214876 U CN201220214876 U CN 201220214876U CN 202558407 U CN202558407 U CN 202558407U
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- ratchet
- elevator
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- electromagnet
- rod
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Abstract
The utility model provides a lift speed limiting device. The lift speed limiting device comprises a steel wire rope wheel (1), a steel wire rope (12), a centrifugal hammer (4), a screw ejection rod (7), a shifting fork (8), a pallet (9), a ratchet wheel plate (5), a braking pull rod (6), a pin shaft (11), a safety switch (10), a braking pressing plate (2) and a braking pressing block (3), and further comprises an inverted connecting rod (13) and a connecting rod shaft (17), wherein the ratchet wheel plate (5) is connected with the inverted connecting rod (13) through the connecting rod shaft (17); and two end parts of the pallet (9) are respectively provided with tooth sheets and clamping sheets of the ratchet wheel plate (5) are bidirectional. The lift speed limiting device disclosed by the utility model can realize bidirectional speed limitation of a lift.
Description
Technical field
The utility model relates to the elevator automatic field, relates in particular to a kind of elevator governor.
Background technology
Velocity limiter is parts of elevator overspeed protecting device, and it constitutes the elevator overspeed safety system with safety tongs.When elevator speed surpasses the value of regulation, generally be set at 115% of command speed, velocity limiter will move, and then the manoeuvring safety pincers, so that the deceleration of elevator and the stop of hypervelocity.In this safety system, velocity limiter is in leading position, because safety tongs is an executive, whether it moves and depend on that whether velocity limiter moves.
The velocity limiter that at present elevator is commonly used centrifugal hammer arranged with oscillating rod type; Its principle all is to utilize weight or pendulum under action of centrifugal force, to produce displacement; And then trigger action mechanism; The velocity limiter wheel is stopped operating, through the action of steel rope manoeuvring safety pincers, reach the purpose that makes the deceleration of elevator stop then.
Yet no matter be centrifugal hammer and velocity limiter oscillating rod type, its action source all is because the centnifugal force that hypervelocity produces is the safety guard-safeguard of passive type.Yet in recent years, along with popularizing rapidly of elevator, in use statistics is found, the accident that elevator takes place under the situation that does not have hypervelocity is also of common occurrence.For example, import and export, occur because the elevator slippage causes the passenger to fall even is sheared deadly serious accident at elevator.Under this situation, because speed is very low, the precondition of out of reach tradition velocity limiter action, so velocity limiter does not have the effect of the safety guard-safeguard of protection.Safety guard-safeguard under this kind situation leans on the service brake of elevator traction machine to be used as safety guard often, makes elevator stopping.The velocity limiter of prior art, level of security is low and under the situation of elevator low-velocity anomal, can not ACTIVE CONTROL; And the velocity limiter of prior art can only be realized the speed limit of a direction, can not reach two-way control.
Summary of the invention
The purpose of the utility model provides a kind of elevator governor, the active protection in the time of can realizing two-way speed limiting and realize the elevator low-velocity anomal.
In order to solve the problems of the technologies described above, the elevator governor that the utility model provides is achieved in that
A kind of elevator governor comprises: wire rope pulley 1, steel rope 12, centrifugal hammer 4, screw push rod 7, fork 8, ratchet 9, ratchet plate 5, lever connection 6, bearing pin 11, safety switch 10, brake press plate 2 and braking briquetting 3; Also comprise: returnconnecting rod 13 and pitman shaft 17; Said ratchet plate 5 links to each other through said pitman shaft 17 with said returnconnecting rod 13; 9 two ends of said ratchet have gear piece respectively, and the card of said ratchet plate 5 is two-way.
Optional, said elevator governor also comprises: electromagnet 16, electromagnet push rod 18, ratchet baffle plate 15 and secondary ratchet 14; When the elevator operation exception, the elevator master control system is sent the signal of abnormal elevator, said electromagnet 16 actions; Said electromagnet push rod 18 ejects; Said ratchet baffle plate 15 rotates, and the bearing pin of said secondary ratchet 14 is by jack-up, and said secondary ratchet 14 sways; The draw-in groove of said ratchet plate 5 is withstood in the end, and ratchet plate 5 rotates.
Optional, said secondary ratchet 14 has two or more around said ratchet plate 5.
The elevator governor that the utility model provides, the ratchet plate links to each other through pitman shaft with returnconnecting rod; Two ends of ratchet have gear piece respectively, and the card of ratchet plate is two-way; Can realize the elevator two-way speed limiting like this, with respect to the elevator governor that can only play unidirectional speed limit in the prior art, the utility model is realized two-way speed limiting, and the operation of bidirectional protective elevator does not exceed the speed limit.
Further, the elevator governor that the utility model provides is when the elevator operation exception; The elevator master control system is sent the signal of abnormal elevator, the electromagnet action, and the electromagnet push rod ejects; The ratchet baffle plate rotates, and the bearing pin of secondary ratchet is by jack-up, and secondary ratchet sways; The draw-in groove of ratchet plate is withstood in the end, and the ratchet plate rotates; Can realize the speed limit of elevator low-velocity anomal like this, guarantee to accomplish speed limit under the abnormal elevator situation.
Further, the elevator governor that the utility model provides, secondary ratchet has two or more around the ratchet plate, when abnormal elevator, in the short time of elevator operation, accomplishes accurate speed limit.
Description of drawings
Fig. 1 is the elevator governor structural representation that the utility model provides.
The specific embodiment
For the purpose, technical scheme and the advantage that make the utility model is clearer,, the utility model is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
As shown in Figure 1, a kind of elevator governor comprises: wire rope pulley 1, steel rope 12, centrifugal hammer 4, screw push rod 7, fork 8, ratchet 9, ratchet plate 5, lever connection 6, bearing pin 11, safety switch 10, brake press plate 2 and braking briquetting 3; Also comprise: returnconnecting rod 13 and pitman shaft 17; Said ratchet plate 5 links to each other through said pitman shaft 17 with said returnconnecting rod 13; 9 two ends of said ratchet have gear piece respectively, and the card of said ratchet plate 5 is two-way.
Optional, said elevator governor also comprises: electromagnet 16, electromagnet push rod 18, ratchet baffle plate 15 and secondary ratchet 14; When the elevator operation exception, the elevator master control system is sent the signal of abnormal elevator, said electromagnet 16 actions; Said electromagnet push rod 18 ejects; Said ratchet baffle plate 15 rotates, and the bearing pin of said secondary ratchet 14 is by jack-up, and said secondary ratchet 14 sways; The draw-in groove of said ratchet plate 5 is withstood in the end, and ratchet plate 5 rotates.
Optional, said secondary ratchet 14 has two or more around said ratchet plate 5.
During the forward speed limit, wire rope pulley 1 is made the conter clockwise circular movement under the drive of steel rope 12, and when speed surpassed certain numerical value, centrifugal hammer 4 outwards threw away; Centrifugal hammer 4 with shift fork 8 jack-up, because shift fork 8 is thrown off, causes ratchet 9 to fall through screw push rod 7, and the draw-in groove on the ratchet plate 5 is withstood in the end of ratchet 9; Drive ratchet plate 5 and rotate counterclockwise, ratchet plate 5 links to each other through bearing pin 11 with lever connection 6, so lever connection 6 is driven; And then touching safety switch 10, lever connection 6 drives brake press plates 2 and rotates, and then slipper 3 is pressed on the wire rope pulley 1; Steel rope 12 is stuck, and the action of manoeuvring safety pincers reaches the braking purpose.
During reverse speed limit, wire rope pulley 1 is made the cw circular movement under the drive of steel rope 12, and when speed surpassed certain numerical value, centrifugal hammer 4 outwards threw away; Centrifugal hammer 4 with shift fork 8 jack-up, because shift fork 8 is thrown off, causes ratchet 9 to fall through screw push rod 7; The draw-in groove on the ratchet plate 5 is withstood in the end of ratchet 9, drives ratchet plate 5 and clockwise rotates, and ratchet plate 5 links to each other through pitman shaft 17 with returnconnecting rod 13; Returnconnecting rod 13 is driven, and returnconnecting rod 13 drives brake press plates 2 and rotates, and then slipper 3 is pressed on the wire rope pulley 1; Steel rope 12 is stuck, and the action of manoeuvring safety pincers reaches the braking purpose.
When the elevator operation exception, the elevator master control system is sent the signal of abnormal elevator, electromagnet 16 actions; Electromagnet push rod 18 ejects, and ratchet baffle plate 15 rotates, and the bearing pin of secondary ratchet 14 is by jack-up; Secondary ratchet 14 sways, and the draw-in groove of ratchet plate 5 is withstood in the end, and ratchet plate 5 rotates.Ratchet plate 5 rotates, and drives returnconnecting rod 13 or lever connection 6, repeats the action of above-mentioned reverse speed limit or forward speed limit, reaches the purpose of speed limit.
The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; Any modification of being done within all spirit and principles at the utility model, be equal to replacement and improvement etc., all should be included within the protection domain of the utility model.
Claims (3)
1. an elevator governor comprises: wire rope pulley (1), steel rope (12), centrifugal hammer (4), screw push rod (7), fork (8), ratchet (9), ratchet plate (5), lever connection (6), bearing pin (11), safety switch (10), brake press plate (2) and braking briquetting (3); It is characterized in that, also comprise: returnconnecting rod (13) and pitman shaft (17); Said ratchet plate (5) links to each other through said pitman shaft (17) with said returnconnecting rod (13); (9) two ends of said ratchet have gear piece respectively, and the card of said ratchet plate (5) is two-way.
2. elevator governor according to claim 1 is characterized in that, said elevator governor also comprises: electromagnet (16), electromagnet push rod (18), ratchet baffle plate (15) and secondary ratchet (14); When the elevator operation exception, the elevator master control system is sent the signal of abnormal elevator, said electromagnet (16) action; Said electromagnet push rod (18) ejects; Said ratchet baffle plate (15) rotates, and the bearing pin of said secondary ratchet (14) is by jack-up, and said secondary ratchet (14) sways; The draw-in groove of said ratchet plate (5) is withstood in the end, and ratchet plate (5) rotates.
3. elevator governor according to claim 2 is characterized in that, said secondary ratchet (14) has two or more around said ratchet plate (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202148762U CN202558407U (en) | 2012-05-14 | 2012-05-14 | Lift speed limiting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202148762U CN202558407U (en) | 2012-05-14 | 2012-05-14 | Lift speed limiting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202558407U true CN202558407U (en) | 2012-11-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202148762U Expired - Fee Related CN202558407U (en) | 2012-05-14 | 2012-05-14 | Lift speed limiting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202558407U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103523629A (en) * | 2013-10-31 | 2014-01-22 | 西继迅达（许昌）电梯有限公司 | Bidirectional machine-room-less speed limiter |
| CN103523628A (en) * | 2013-10-31 | 2014-01-22 | 西继迅达（许昌）电梯有限公司 | Bidirectional machine-room-free speed limiter of single brake pressing-plate device |
| CN103523632A (en) * | 2013-10-31 | 2014-01-22 | 西继迅达（许昌）电梯有限公司 | Bidirectional machine-room-free automatic anti-running vehicle speed limiter of single brake pressing-plate device |
| CN104192669A (en) * | 2014-08-22 | 2014-12-10 | 张龙俊 | Elevator anti-falling device |
| CN104773628A (en) * | 2015-03-31 | 2015-07-15 | 西继迅达（许昌）电梯有限公司 | Bidirectional speed governor with single brake pressing plate with pawl automatic restoring function |
| CN104787638A (en) * | 2015-03-31 | 2015-07-22 | 西继迅达（许昌）电梯有限公司 | Bi-directional speed limiter with pawl capable of being reset automatically |
| CN107345851A (en) * | 2017-08-31 | 2017-11-14 | 西继迅达（许昌）电梯有限公司 | Limiter of speed response speed testing jig |
| CN111675108A (en) * | 2020-06-18 | 2020-09-18 | 王成 | Steel construction of building and road and bridge construction usefulness lifts by crane equipment |
-
2012
- 2012-05-14 CN CN2012202148762U patent/CN202558407U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103523629A (en) * | 2013-10-31 | 2014-01-22 | 西继迅达（许昌）电梯有限公司 | Bidirectional machine-room-less speed limiter |
| CN103523628A (en) * | 2013-10-31 | 2014-01-22 | 西继迅达（许昌）电梯有限公司 | Bidirectional machine-room-free speed limiter of single brake pressing-plate device |
| CN103523632A (en) * | 2013-10-31 | 2014-01-22 | 西继迅达（许昌）电梯有限公司 | Bidirectional machine-room-free automatic anti-running vehicle speed limiter of single brake pressing-plate device |
| CN104192669A (en) * | 2014-08-22 | 2014-12-10 | 张龙俊 | Elevator anti-falling device |
| CN104773628A (en) * | 2015-03-31 | 2015-07-15 | 西继迅达（许昌）电梯有限公司 | Bidirectional speed governor with single brake pressing plate with pawl automatic restoring function |
| CN104787638A (en) * | 2015-03-31 | 2015-07-22 | 西继迅达（许昌）电梯有限公司 | Bi-directional speed limiter with pawl capable of being reset automatically |
| CN107345851A (en) * | 2017-08-31 | 2017-11-14 | 西继迅达（许昌）电梯有限公司 | Limiter of speed response speed testing jig |
| CN111675108A (en) * | 2020-06-18 | 2020-09-18 | 王成 | Steel construction of building and road and bridge construction usefulness lifts by crane equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121128 Termination date: 20180514 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |