CN207774530U - A kind of explosion-proof limiter of speed - Google Patents
A kind of explosion-proof limiter of speed Download PDFInfo
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- CN207774530U CN207774530U CN201820023869.1U CN201820023869U CN207774530U CN 207774530 U CN207774530 U CN 207774530U CN 201820023869 U CN201820023869 U CN 201820023869U CN 207774530 U CN207774530 U CN 207774530U
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- Prior art keywords
- triggering
- limiter
- speed
- explosion
- connecting rod
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Abstract
The utility model discloses a kind of explosion-proof limiter of speeds.Machinery triggering centrifugal speed limiter is made of machinery triggering and electromagnetism triggering two systems.Machinery triggering is centrifugal, and when limiter of speed wheel speed is more than normal speed, limiter of speed action, triggering is acted with the mating safety tongs of limiter of speed, by the equipment stop such as elevator or elevator.Urgent triggering system, by making the power-off of explosion prevention electromagnet, makes limiter of speed trigger when system detectio is to elevator accidental movement.This limiter of speed is suitable for explosive atmosphere.It is a kind of explosion-proof limiter of speed for the mechanical electromagnetic dual trigger having anti-car accidental movement function.
Description
Technical field
The utility model is related to a kind of limiter of speed, more particularly to a kind of explosion-proof limiter of speed.
Background technology
Now widely used limiter of speed protective device is all to drive safety tongs using by limiter of speed, makes elevator, lifting
The hoisting machineries such as machine, which slow down, to be stopped.Limiter of speed mostly uses greatly mechanical triggering mode, i.e., when the rotary speed of governor sheave is more than
When certain limit value, the centrifugal-block on governor sheave rotates under the influence of centrifugal force, drives the detent mechanism on rope sheave dynamic
Make, cord-pressing block on limiter of speed made to compress speed limiter wire rope, to using the wire rope pulling safety tongs of tensioning make elevator or
It is wherein mechanical out of service.
It is that governor sheave material is made the material misfired to be currently used in the limiter of speed used under explosive atmosphere all
Material does not generate electric spark that is, when steel wire rope and rope sheave rub.The energy generated by controlling measurement friction mechanically.It arrives
So far, the limiter of speed of electromagnetism triggering does not have requirement of explosion proof still.Electromagnetism triggering requirement electromagnetism trigger device can be swift in motion,
Effect is strong, this power for allowing for electromagnetism trigger device has been more than the safety value under explosion-proof environment, the speed limit for making electromagnetism trigger
Device cannot be applied under explosion-proof environment.
No. 1 modification single gauge of GB 7588-2003 is fixed, and elevator detects accidental movement when opening the door, it is necessary to which elevator is reliable
Stop.Machinery triggering limiter of speed can be used under general environment, safety tongs is realized into this function as stop mechanism arrangement.But
It is under explosive atmosphere, elevator can not rely on limiter of speed and safety tongs action by elevator stopping, cause explosion-proof lift without the image of Buddha
Conventional lift equally increases by one of safety device.And other modes realize that this function is also infeasible on explosion-proof lift.
Utility model content
The purpose of this utility model is to provide a kind of explosion-proof limiter of speed.This explosion-proof limiter of speed have preferably prevent elevator
The effect of accidental movement, and it is safer.
The above-mentioned technical purpose of the utility model technical scheme is that：A kind of explosion-proof limiter of speed,
Including mounting plate, machinery triggering centrifugal speed limiter is provided on the mounting plate, the machinery triggering centrifugal speed limiter is connected with
Urgent triggering system, the urgent triggering system can trigger machinery triggering centrifugal speed limiter work, reach speed limit effect when power is off
Fruit.
After above-mentioned technical proposal, when elevator or elevator accidental movement, by promptly triggering system cut-off,
So that promptly triggering system control machine tool triggering centrifugal speed limiter work, so that machinery triggering centrifugal speed limiter can
Elevator speed is controlled, is achieved the purpose that so that elevator brake.
The utility model is further arranged to：The urgent triggering system includes being set to machinery triggering centrifugal speed limiter
Ratchet in speed limit device wheel is provided with multiple grooves on the ratchet, and the groove is combined with triggering connecting rod, the triggering connecting rod
It is connected with driving mechanism, when the driving mechanism is powered, triggering connecting rod is detached from groove, when the driving mechanism powers off, triggering
Connecting rod enters in groove.
After above-mentioned technical proposal, driving mechanism is powered so that triggering connecting rod work, so that triggering connecting rod
Leave groove.At this point, ratchet is no longer influenced by the limitation of triggering connecting rod, so that ratchet is able to that speed limit device wheel is followed to be turned
It is dynamic.Limiter of speed wheel rotates so that machinery triggering centrifugal speed limiter does not interfere with the normal operation of elevator.When limiter of speed wheel speed
When degree is more than normal speed, machinery triggering centrifugal speed limiter work so that elevator or elevator braking.When elevator or elevator are anticipated
When outer mobile, driving mechanism power-off, so that the triggering connecting rod in driving mechanism is caught under its own gravity into groove.Make
Limiter of speed work is obtained, elevator or elevator are braked.Pass through above two mode of braking so that the explosion-proof limiter of speed can
It is used in explosion environment, the reason is that do not braked by electromagnetic braking mode, but by promptly triggering system band motivation
Tool triggers centrifugal speed limiter work, so that electromagnetic power does not exceed safety value.
The utility model is further arranged to：The driving mechanism includes explosion prevention electromagnet, at the top of the explosion prevention electromagnet
It is provided with output shaft, the output shaft is connect with triggering connecting rod, and the explosion prevention electromagnet bottom is provided with compressed spring.
After above-mentioned technical proposal, by the way that explosion prevention electromagnet is arranged so that explosion prevention electromagnet can drive output
Axis moves up.At this point, compressed spring stretches, there is elastic potential energy.Output shaft movement drives triggering connecting rod to move up, to
So that triggering connecting rod is detached from from groove, triggering connecting rod does not interfere with the normal operation of elevator or elevator.When elevator or lifting
When machine accidental movement, explosion prevention electromagnet power-off, so that triggering connecting rod blocks under the elastic force of its own gravity and compressed spring
Enter into groove so that triggering connecting rod driving machinery triggering centrifugal speed limiter work, to be braked to elevator or elevator.
Since the explosion prevention electromagnet pushes up triggering connecting rod when being powered, required power does not exceed the peace under explosion-proof environment
Total head reaches explosion-proof effect.In addition, when needing Crush trigger to trigger centrifugal speed limiter, by breaking to explosion prevention electromagnet
Electricity so that explosion prevention electromagnet need not directly brake elevator or elevator, but triggers machine by triggering connecting rod
Tool triggers centrifugal speed limiter, to carry out mechanical braking to elevator or elevator.Also, it is triggered, is made in powering off environment
The power for obtaining the explosion prevention electromagnet in triggering is 0, will not make that the power of explosion prevention electromagnet is more than safety value during the work time,
To reach preferable explosion-proof effect.
The utility model is further arranged to：The urgent triggering system further includes electromagnet pedestal, the electromagnet bottom
Seat is fixedly connected with mounting plate, and waist type groove corresponding with triggering connecting rod is provided on the electromagnet pedestal.
After above-mentioned technical proposal, by the way that electromagnet pedestal is arranged so that the installation of entire urgent triggering system
It is relatively stable, urgent triggering system installation will not be caused unstable in machinery triggering centrifugal speed limiter work.Pass through waist type groove
Setting so that explosion prevention electromagnet drive triggering connecting rod movement when path limited, ensure triggering connecting rod preferably leave it is recessed
Slot prevents triggering connecting rod from shifting in path in the process of moving so that prevents triggering connecting rod from cannot timely start machinery
Trigger centrifugal speed limiter.
In conclusion the utility model has the advantages that：
1, the innovative point of the utility model is：General electricity magnetically triggered system, which is required to electromagnetism trigger device, to be acted
Rapidly, effect is strong.But the power of electromagnetism trigger device can be caused to be more than the safety value under explosion-proof environment, Bu Nengda in this way
To preferable explosion-proof effect.Therefore, the utility model mainly passes through the urgent triggering system of setting so that in urgent trigger device
Crush trigger triggers centrifugal speed limiter work, by increasing new step, need not be triggered by electromagnetism, but be touched by machinery
The mode of hair is braked.The realization method need not promptly trigger system and can be realized with very high power.In addition, tight
Anxious triggering system so that trigger connecting rod snaps onto groove again in elevator or elevator accidental movement by way of power-off
In, start machinery triggering centrifugal speed limiter.Under this mode so that elastic force of the triggering connecting rod in its own gravity and compressed spring
It is snapped onto in groove under effect, the power of explosion prevention electromagnet is 0, does not exceed safety value, reaches preferable explosion-proof effect；
2, pass through the setting of electromagnet pedestal so that the installation of entire urgent triggering system is relatively stable, so that whole
A urgent triggering system will not cause urgent triggering system installation unstable in elevator or elevator duty.Also, pass through waist
The setting of type groove so that the displacement for triggering connecting rod is limited, to prevent triggering connecting rod from shake or road occurring in moving process
Diameter deviates.
Description of the drawings
Fig. 1 is the structural schematic diagram of embodiment；
Fig. 2 is the front view of embodiment.
Reference numeral：1, mounting plate；2, machinery triggering centrifugal speed limiter；3, system is promptly triggered；4, ratchet；5, triggering connects
Bar；6, electromagnet pedestal；7, driving mechanism；8, explosion prevention electromagnet；9, output shaft；10, compressed spring；11, groove；12, waist type
Slot.
Specific implementation mode
The utility model is described in further detail below in conjunction with attached drawing.
This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability
Field technique personnel can as needed make the present embodiment the modification of not creative contribution after reading this specification, but
As long as all being protected by Patent Law in the right of the utility model.
As shown in Figure 1 and Figure 2, a kind of explosion-proof limiter of speed, including mounting plate 1, machinery triggering centrifugal speed limiter 2 and urgent
Triggering system 3.Wherein, machinery triggering centrifugal speed limiter 2 is mounted on mounting plate 1.Urgent triggering system 3 is centrifuged with machinery triggering
Limiter of speed 2 connects.
Urgent triggering system 3 includes ratchet 4, triggering connecting rod 5, electromagnet pedestal 6, driving mechanism 7.Wherein, electromagnet bottom
Seat 6 is fixedly connected with mounting plate 1.Driving mechanism 7 includes explosion prevention electromagnet 8.Explosion prevention electromagnet 8 is mounted on electromagnet pedestal 6.
Output shaft 9 is fixedly connected on explosion prevention electromagnet 8.Compressed spring 10 is provided between output shaft 9 and electromagnet pedestal 6.It is explosion-proof
9 top of output shaft and the triggering connecting rod 5 of electromagnet 8 are connected.Trigger the one end of connecting rod 5 far from explosion prevention electromagnet 8 and ratchet 4
Cooperation.Multiple grooves corresponding with triggering connecting rod 5 11 are provided on ratchet 4.Ratchet 4 is fixed on machinery triggering centrifugal speed limiter
In 2 speed limit device wheel, and rotated together with speed limit device wheel.
It is ejected in the axial direction of explosion prevention electromagnet 8 when energization.6 side of electromagnet pedestal is opened up there are one waist-shaped hole.Triggering connects
Bar 5 passes through the waist type groove 12 on electromagnet pedestal 6, one end to be fixed on the output shaft 9 of explosion prevention electromagnet 8, and triggering connecting rod 5 can edge
Waist type groove 12 on electromagnet pedestal 6 does sliding up and down.5 one end of triggering connecting rod can be caught in groove 11.
When explosion prevention electromagnet 8 is powered, output shaft 9 drives triggering connecting rod 5 to be detached from groove 11, machinery triggering centrifugation limit rapidly
2 normal operation of fast device.When limiter of speed overspeed, limiter of speed is triggered by mechanical trigger mechanism, safety tongs is driven to carry out stop
Action.
When detecting elevator or elevator accidental movement, 8 fast break of explosion prevention electromagnet, output shaft 9 is in explosion-proof electromagnetic
Reset is moved downward under the double action of itself spring of iron 8 and gravity, and triggering connecting rod 5 is driven to be caught in the groove 11 of ratchet 4, from
And Crush trigger triggering centrifugal speed limiter 2 acts, and safety tongs is driven to carry out stop action.
Whole synthesis effect：
General electricity magnetically triggered system, which is required to electromagnetism trigger device, to be swift in motion, and effect is strong.But meeting in this way
It is more than the safety value under explosion-proof environment to lead to the power of electric magnetically triggered system, cannot reach preferable explosion-proof effect.Therefore, this reality
Mainly pass through the urgent triggering system 3 of setting with novel so that trigger centrifugal speed limiter 2 in promptly triggering 3 Crush trigger of system
Work need not be triggered by electromagnetism by increasing new step, but be braked in such a way that machinery triggers.The reality
Existing mode need not promptly trigger system 3 and can be realized with very high power.In addition, promptly triggering system 3 in elevator or
When elevator accidental movement, made by way of power-off trigger connecting rod 5 snap onto again in groove 11, start machinery trigger from
Heart limiter of speed 2.Under this mode so that triggering connecting rod 5 snaps onto under the effect of the elastic force of its own gravity and compressed spring 10
In groove 11, the power of explosion prevention electromagnet 8 is 0, does not exceed safety value, reaches preferable explosion-proof effect.
Claims (4)
1. a kind of explosion-proof limiter of speed, including mounting plate (1), machinery triggering centrifugal speed limiter is provided on the mounting plate (1)
(2), it is characterized in that：The machinery triggering centrifugal speed limiter (2) is connected with urgent triggering system (3), the urgent triggering system
(3) it can trigger machinery triggering centrifugal speed limiter (2) when power is off to work, reach speed limit effect.
2. a kind of explosion-proof limiter of speed according to claim 1, it is characterized in that：The urgent triggering system (3) includes setting
Ratchet (4) in the speed limit device wheel of machinery triggering centrifugal speed limiter (2) is provided with multiple grooves (11) on the ratchet (4),
The groove (11) is combined with triggering connecting rod (5), and the triggering connecting rod (5) is connected with driving mechanism (7), the driving mechanism
(7) when being powered, triggering connecting rod (5) is detached from groove (11), and when the driving mechanism (7) powers off, triggering connecting rod (5) enters recessed
In slot (11).
3. a kind of explosion-proof limiter of speed according to claim 2, it is characterized in that：The driving mechanism (7) includes explosion-proof electromagnetic
Iron (8), explosion prevention electromagnet (8) top are provided with output shaft (9), and the output shaft (9) connect with triggering connecting rod (5), institute
It states explosion prevention electromagnet (8) bottom and is provided with compressed spring (10).
4. a kind of explosion-proof limiter of speed according to claim 2, it is characterized in that：The urgent triggering system (3) further includes electricity
Magnet pedestal (6), the electromagnet pedestal (6) are fixedly connected with mounting plate (1), be provided on the electromagnet pedestal (6) with
Trigger the corresponding waist type groove (12) of connecting rod (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820023869.1U CN207774530U (en) | 2018-01-08 | 2018-01-08 | A kind of explosion-proof limiter of speed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820023869.1U CN207774530U (en) | 2018-01-08 | 2018-01-08 | A kind of explosion-proof limiter of speed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207774530U true CN207774530U (en) | 2018-08-28 |
Family
ID=63223997
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820023869.1U Active CN207774530U (en) | 2018-01-08 | 2018-01-08 | A kind of explosion-proof limiter of speed |
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| Country | Link |
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| CN (1) | CN207774530U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108083050A (en) * | 2018-01-08 | 2018-05-29 | 台州富士电梯制造有限公司 | A kind of explosion-proof limiter of speed |
-
2018
- 2018-01-08 CN CN201820023869.1U patent/CN207774530U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108083050A (en) * | 2018-01-08 | 2018-05-29 | 台州富士电梯制造有限公司 | A kind of explosion-proof limiter of speed |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 318012 599 southeast Avenue, Jiaojiang District, Taizhou, Zhejiang. Patentee after: Taizhou Fuji Elevator Co., Ltd Address before: 318012 599 southeast Avenue, Jiaojiang District, Taizhou, Zhejiang. Patentee before: TAIZHOU FUJI ELEVATOR Co.,Ltd. |