CN205555785U - Centrifugal safety tongs - Google Patents
Centrifugal safety tongs Download PDFInfo
- Publication number
- CN205555785U CN205555785U CN201620351098.XU CN201620351098U CN205555785U CN 205555785 U CN205555785 U CN 205555785U CN 201620351098 U CN201620351098 U CN 201620351098U CN 205555785 U CN205555785 U CN 205555785U
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- CN
- China
- Prior art keywords
- centrifugal
- shift fork
- camshaft
- voussoir
- cam
- 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 relates to a centrifugal safety tongs. The utility model discloses a simple structure, installation and debugging make things convenient for, the security performance is good, convenient to use's centrifugal safety tongs even if provide. The utility model discloses a centrifugal wheel, shift fork, safe round pin, torsional spring, camshaft, voussoir cam, the one end setting is sold safely in the camshaft to safe round pin and safe dowel support sliding connection, and its other end of installing compression spring offsets with the end that compresses tightly of shift fork, the shift fork stir the end adjacent with the centrifugal wheel external diameter, spacing bolt setting is in the slot hole of shift fork, voussoir cam and torsional spring setting are on the camshaft.
Description
Technical field
This utility model relates to a kind of safety tongs, especially a kind of centrifugal instantaneous safety.
Background technology
Safety tongs is a kind of safety device, and it can make lift car brake hard on guide rail.Safety tongs is ingredient important in elevator structure; it it is the device that last protection is provided in elevator protection system; even if, other mechanical safety device all electrically at elevator lost efficacy in the case of causing elevator generation hypervelocity to be fallen; safety tongs can make the reliable stop of car, protection passenger and the safety of equipment.Safety tongs is also the safety guard of vertical conveyor.Safety tongs can be divided into wedge type, eccentric wheel-type and roller-type three kinds according to the difference of its braking member version, can be divided into instantaneous formula and gradual two kinds according to the difference of its stop deceleration.Existing safety tongs, needs to install separately outside the movable part of elevator or elevator, and the installation and debugging time is long.
Summary of the invention
This utility model is aiming at the problems referred to above, it is provided that a kind of simple in construction, the centrifugal safety tongs that installation and debugging are convenient, security performance is good, easy to use.
Realize above-mentioned purpose, this utility model uses following scheme, this utility model includes centrifugal wheel, shift fork, safety pin, torsion spring, camshaft, voussoir cam, safety pin is connected with safety pin bearing sliding, safety pin one end is arranged in camshaft, and the compression end of its other end and shift fork of being provided with compression spring offsets；The struck side of shift fork is adjacent with centrifugal wheel external diameter, and caging bolt is arranged in the elongated hole of shift fork；Voussoir cam and torsion spring are arranged on camshaft.
Centrifugal wheel includes wheel body and centrifugal-block, and it is internal that 2 centrifugal-blocks being connected by spring are radially symmetricly set on wheel.
Voussoir cam work is provided with helical teeth on surface；Increase friction, improve locked effect, i.e. carried high security.
Utility model beneficial effect
This utility model is applied on the elevating mechanism of guide tracked elevator, and centrifugal wheel is installed on elevator driving shaft or driven shaft, and this utility model uses mechanical system to realize locking braking function, and the part of application is few, simple in construction；When elevating mechanism is out of control, elevating mechanism driving shaft or the driven shaft high-speed rotation of centrifugal wheel are installed, the centrifugal-block of centrifugal wheel throws away stirs shift fork, and shift fork moves up, and the compression end of shift fork departs from from safety pin outer end, the safety pin losing external force ejects under compression spring effect, the safety pin other end is deviate from from voussoir camshaft, and camshaft rotates under torsion spring effect, and the helical teeth on voussoir cam work surface suits with the tooth bar of guide rail, improving locked effect, security performance is good；Overcome conventional steel cord locking mode easy generating mechanism mistakenly stop phenomenon, easy to use；Voussoir cam is long for service life simultaneously, also ensure that the long-term safety of elevator or elevator is run, decreases the maintenance frequency, and mechanical interlocking is safe and reliable.This utility model can be directly mounted in the mobile device of elevator, and factory is the most prefabricated, alleviates field adjustable workload, and installation and debugging are convenient.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Fig. 2 is scheme of installation of the present utility model.
Detailed description of the invention
As shown in the figure, this utility model includes centrifugal wheel 1, shift fork 3, safety pin 8, torsion spring 6, camshaft 5, voussoir cam 2, safety pin 8 is slidably connected with safety pin bearing 4, and safety pin 8 one end is arranged in camshaft 5, and the compression end 34 of its other end and shift fork 3 of being provided with compression spring 7 offsets；The struck side 31 of shift fork 3 is adjacent with centrifugal wheel 1 external diameter, and caging bolt 32 is arranged in the elongated hole 33 of shift fork 3；Voussoir cam 2 and torsion spring 6 are arranged on camshaft 5.Voussoir cam 2 working surface is provided with helical teeth 21, and helical teeth 21 is identical and in opposite direction with tooth bar 9 spiral angle of elevator guide rails, and voussoir cam 2 is prone to cut tooth bar 9, improves safety.
During installation, being fixedly installed on the traversing carriage 10 of rail mounted elevator caging bolt 32 one end, shift fork 3 is arranged on caging bolt 32 by elongated hole 33, and ensures that shift fork 3 can move up and down；Camshaft 5 is arranged on the traversing carriage 10 of elevator, it is ensured that rotating flexibly, torsion spring 6 and voussoir cam 2 are separately mounted on camshaft 5, and torsion spring 6 one end is fixed on traversing carriage 10, and the other end is fixed with camshaft 1；Safety pin bearing 4 is fixedly mounted on the traversing carriage 10 of elevator, and safety pin 8 is through safety pin bearing 4, and one end is arranged in camshaft 5, under elevator normal operating conditions, it is ensured that shift fork compresses end 34 and compresses safety pin 8；Centrifugal wheel 1 is arranged on the driving shaft of elevator or the end of driven shaft.Under runaway condition, the axle high speed rotating of centrifugal wheel 1 is installed, the centrifugal-block 13 of centrifugal wheel 1 throws away under the influence of centrifugal force, and beat on the lower surface, struck side 31 of shift fork 3, making to move on shift fork 3, the compression end 34 of shift fork 3 departs from safety pin 8, safety pin 8 is deviate under compression spring 7 acts on from camshaft 5, camshaft 5 drives voussoir cam 2 to rotate under the effect of torsion spring 3, when the helical teeth 21 of voussoir cam 2 is killed with the tooth bar 9 of guide rail, it is achieved braking function.After braking, centrifugal-block 7 resets under the effect of spring 12.
Claims (4)
1. a centrifugal safety tongs, it is characterized in that including centrifugal wheel, shift fork, safety pin, torsion spring, camshaft, voussoir cam, safety pin is connected with safety pin bearing sliding, and safety pin one end is arranged in camshaft, and the compression end of its other end and shift fork of being provided with compression spring offsets；The struck side of shift fork is adjacent with centrifugal wheel external diameter, and caging bolt is arranged in the elongated hole of shift fork；Voussoir cam and torsion spring are arranged on camshaft.
Centrifugal safety tongs the most as claimed in claim 1, it is characterised in that centrifugal wheel includes wheel body and centrifugal-block, it is internal that 2 centrifugal-blocks being connected by spring are radially symmetricly set on wheel.
Centrifugal safety tongs the most as claimed in claim 1, it is characterised in that voussoir cam work is provided with helical teeth on surface.
Centrifugal safety tongs the most as claimed in claim 3, it is characterised in that helical teeth is identical and in opposite direction with the gear rack helix angle degree of elevator guide rails.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620351098.XU CN205555785U (en) | 2016-04-25 | 2016-04-25 | Centrifugal safety tongs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620351098.XU CN205555785U (en) | 2016-04-25 | 2016-04-25 | Centrifugal safety tongs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205555785U true CN205555785U (en) | 2016-09-07 |
Family
ID=56807221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620351098.XU Expired - Fee Related CN205555785U (en) | 2016-04-25 | 2016-04-25 | Centrifugal safety tongs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205555785U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113044743A (en) * | 2021-03-10 | 2021-06-29 | 内蒙古维维能源有限公司 | Winch and pedestrian safety power-off locking alarm method thereof |
-
2016
- 2016-04-25 CN CN201620351098.XU patent/CN205555785U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113044743A (en) * | 2021-03-10 | 2021-06-29 | 内蒙古维维能源有限公司 | Winch and pedestrian safety power-off locking alarm method thereof |
| CN113044743B (en) * | 2021-03-10 | 2022-06-17 | 内蒙古维维能源有限公司 | Winch and pedestrian safety power-off locking alarm method thereof |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160907 Termination date: 20210425 |