CN205222339U - Speed limiter of elevator - Google Patents
Speed limiter of elevator Download PDFInfo
- Publication number
- CN205222339U CN205222339U CN201521082949.7U CN201521082949U CN205222339U CN 205222339 U CN205222339 U CN 205222339U CN 201521082949 U CN201521082949 U CN 201521082949U CN 205222339 U CN205222339 U CN 205222339U
- Authority
- CN
- China
- Prior art keywords
- paw
- rope sheave
- head
- mounting hole
- claw
- 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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- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The utility model discloses a speed limiter of elevator, including the rope sheave, be provided with centrifugal swinging block, connecting rod, pressure claw, pawl, pawl shaft and extension spring on the rope sheave, wherein, press the claw press claw head, transfer line and braking foot, press the claw head to set up the one end at the transfer line, press the claw overhead seted up with rope sheave matched with mounting hole I, be provided with the vice claw head of pressing on the transfer line, vice pressure claw is overhead seted up with rope sheave matched with mounting hole II, mounting hole I and mounting hole are II coaxial, the utility model discloses an add vice press the claw head with press the cooperation of claw head make the transfer line when rotatory on axial direction the force balance to the mechanical motion of messenger's overspeed governor is more accurate, stable.
Description
Technical field
The utility model belongs to elevators field, refers in particular to a kind of elevator governor.
Background technology
Now widely used elevator governor adopts centrifugal triggering, folder rope brake structure.As depicted in figs. 1 and 2, this type velocity limiter is by rope sheave parts 10, pressure rope parts 11 and bracket component 12 form, rope sheave parts 10 are primarily of rope sheave 1, centrifugal block for clutch use 2, connecting rod assembly 3, paw 4, ratchet 5, pawl axis 6, extension spring 7 forms, when elevator normally runs, rope sheave 1 clickwise, when rotative speed exceedes setting speed, under the influence of centrifugal force, the relative rope sheave 1 of centrifugal block for clutch use 2 is around pawl axis 6 clickwise, come in contact with the screw on the drive link 402 of paw 4, paw 4 low-angle is driven to rotate clockwise, ratchet 5 by the retro-angle 403 of paw 4 is pushed down is discharged, ratchet 5 rotates at extension spring 7 pulling force clockwise under influence, its head is meshed with the ratchet of bracket component 12, rope sheave parts 10 are stopped operating, thus the action of lift safety tongs makes elevator out of service.
All the paw 4 adopting single-cantilever structure in the market, as Fig. 3, shown in Fig. 4, this paw 4 comprises drive link 402, retro-angle 403 and paw head 401, the paw head 401 of paw 4 is rotationally connected by S. A. and rope sheave 1, and paw head 401 is arranged on a side of rope sheave, for single-cantilever structure, when centrifugal block for clutch use 2 drives paw 4 low-angle to rotate clockwise, paw 4 is not only subject to clockwise application force, also by the impact of axial component, the inclined phenomenon of certain pendulum will be there is in paw 4 by the impact of axial component, cause elevator governor mechanical action speed dispersion, unstable shortcoming, cause elevator governor mechanical movement accurate not, there is the risk of certain misoperation.
Utility model content
The purpose of this utility model is to provide a kind of elevator governor, and it to coordinate with paw head make drive link stress balance in the axial direction when rotated by setting up secondary paw head, thus make the mechanical movement of velocity limiter more accurately, stable.
The purpose of this utility model is achieved in that a kind of elevator governor, comprise rope sheave, described rope sheave is provided with centrifugal block for clutch use, connecting rod assembly, ratchet, pawl axis, extension spring and paw, described paw comprises drive link, paw head and retro-angle, described paw head is arranged on one end of drive link, described paw head offers the mounting hole I coordinated with rope sheave, wherein, the other end of described drive link is also provided with secondary paw head, described secondary paw head offers the mounting hole II coordinated with rope sheave, described mounting hole II and described mounting hole I coaxial, described paw head and secondary paw head are distributed in the both sides of described rope sheave respectively, when paw is axially subject to the effect of power, paw head or the application force reverse with axial component can be produced between secondary paw head and rope sheave make paw axial direction stress balance, thus it is discrete to avoid the velocity limiter mechanical action caused because of paw axially loaded overbalance, unstable, inaccuracy, and then avoid velocity limiter misoperation.
According to upper described elevator governor, wherein, described retro-angle be that curved surface is connected between paw head and secondary paw head, described retro-angle be that curved surface is connected between drive link, the mechanical strength of paw can be improved, the service life of prolongation paw.
The utility model gives prominence to compared to existing technology and useful technique effect is: paw prior art single-cantilever structure paw being changed into dual-support structure, add the axial constraint of paw, when the screw on paw drive link is under centrifugal block for clutch use centrifugal action during small-angle movement, paw can be subject to the clockwise application force of sense of motion and the component of axial direction, when there being axial component to act on paw, paw head or the application force reverse with axial component can be produced between secondary paw head and rope sheave make paw axial direction stress balance, thus ensure that paw motion stabilization in the clockwise direction, and then and to avoid the velocity limiter mechanical action caused because of paw axially loaded overbalance discrete, unstable, inaccuracy and misoperation.
Accompanying drawing explanation
Fig. 1 is the front view of prior art velocity limiter;
Fig. 2 is rope sheave parts back view in prior art;
Fig. 3 is the front view of prior art paw;
Fig. 4 is the birds-eye view of prior art paw;
Fig. 5 is the back view of rope sheave parts in a kind of elevator governor of the utility model;
Fig. 6 is the birds-eye view of paw in a kind of elevator governor of the utility model;
Fig. 7 is the front view of paw in a kind of elevator governor of the utility model;
Fig. 8 is the shaft side figure of paw in a kind of elevator governor of the utility model;
In figure: 10, rope sheave parts; 11, pressure rope parts; 12, bracket component; 1, rope sheave; 2, centrifugal block for clutch use; 3, connecting rod assembly; 4, paw; 5, ratchet; 6, pawl axis; 7, extension spring; 401, paw head; 402, drive link; 403, retro-angle; 404, mounting hole I; 405, secondary paw head; 406, mounting hole II.
Detailed description of the invention
Be described further with reference to the embodiment of Fig. 5 to Fig. 8 to a kind of elevator governor of the utility model.
A kind of elevator governor, by rope sheave parts 10, pressure rope parts 11 and bracket component 12 form, described rope sheave parts 10 comprise rope sheave 1, centrifugal block for clutch use 2, connecting rod assembly 3, ratchet 5, pawl axis 6, extension spring 7 and paw 4, wherein, described paw 4 comprises paw head 401, drive link 402 and retro-angle 403, described paw head 401 is arranged on one end of drive link 402, described paw head 401 offers the mounting hole I 404 matched with rope sheave 1, the other end of described drive link 402 is provided with secondary paw head 405, described secondary paw head 405 offers the mounting hole II 406 matched with rope sheave 1, described mounting hole I 404 and mounting hole II 406 coaxial, described paw head 401 and secondary paw head 405 are distributed in the both sides of rope sheave 1 respectively, described retro-angle 403 is connected with curved surface between paw head 401 and secondary paw head 405, described retro-angle 403 be also that curved surface is connected between drive link 402.
When elevator normally runs, governor sheave 1 clickwise, when rotative speed exceedes setting speed, under centrifugal action, the relative rope sheave 1 of centrifugal block for clutch use 2 is around pawl axis 6 clickwise, come in contact with the screw on the drive link 402 of paw 4, drive paw 4 in the clockwise direction low-angle rotates clockwise, ratchet 5 by the retro-angle 403 of paw 4 is pushed down is discharged, ratchet 5 rotates at the clockwise under influence of extension spring 7 pulling force, its head is meshed with the ratchet of bracket component 12, rope sheave parts 10 are stopped operating, thus the action of lift safety tongs makes elevator out of service, screw on the drive link 402 of centrifugal block for clutch use 2 and paw 4 comes in contact, drive paw 4 when low-angle rotates clockwise in the clockwise direction, drive link 402 two ends because of paw 4 are respectively equipped with paw head 401 and secondary paw head 405, paw head 401 and secondary paw head 405 add the axial constraint of paw 4, make paw 4 in the clockwise direction small-angle movement time by the impact of axial component, thus ensure that the mechanical action of velocity limiter is stable, accurately and can not misoperation.
The preferred retro-angle of the present embodiment be that curved surface is connected between paw head 401 and secondary paw head 405, be that curved surface is connected between retro-angle 403 with drive link 402, the mechanical strength of paw 4 can be improved, extend service life of paw 4.
Claims (2)
1. an elevator governor, comprise rope sheave, described rope sheave is provided with centrifugal block for clutch use, connecting rod assembly, ratchet, pawl axis, extension spring and paw, described paw comprises drive link, paw head and retro-angle, described paw head is arranged on one end of drive link, described paw head offers the mounting hole I coordinated with rope sheave, it is characterized in that: the other end of the corresponding paw head of described drive link is provided with secondary paw head, described secondary paw head offers the mounting hole II coordinated with rope sheave, described mounting hole II and described mounting hole I are coaxially arranged, described paw head and secondary paw head are distributed in the both sides of described rope sheave respectively.
2. elevator governor according to claim 1, is characterized in that: described retro-angle be that curved surface is connected between paw head and secondary paw head, described retro-angle be that curved surface is connected between drive link.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521082949.7U CN205222339U (en) | 2015-12-22 | 2015-12-22 | Speed limiter of elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521082949.7U CN205222339U (en) | 2015-12-22 | 2015-12-22 | Speed limiter of elevator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205222339U true CN205222339U (en) | 2016-05-11 |
Family
ID=55897416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521082949.7U Expired - Fee Related CN205222339U (en) | 2015-12-22 | 2015-12-22 | Speed limiter of elevator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205222339U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11414298B2 (en) | 2017-10-30 | 2022-08-16 | Otis Elevator Company | Governor assembly and elevator system |
-
2015
- 2015-12-22 CN CN201521082949.7U patent/CN205222339U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11414298B2 (en) | 2017-10-30 | 2022-08-16 | Otis Elevator Company | Governor assembly and elevator system |
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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: 20160511 Termination date: 20161222 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |