CN105129571A - Automatic powering-off mechanism of elevator buffer - Google Patents
Automatic powering-off mechanism of elevator buffer Download PDFInfo
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- CN105129571A CN105129571A CN201510588031.8A CN201510588031A CN105129571A CN 105129571 A CN105129571 A CN 105129571A CN 201510588031 A CN201510588031 A CN 201510588031A CN 105129571 A CN105129571 A CN 105129571A
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- switch
- hole
- feeler lever
- buffer
- countersunk head
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Abstract
The invention provides an automatic powering-off mechanism of an elevator buffer. The automatic powering-off mechanism of the elevator buffer is simple in structure and reasonable in design and comprises a contactor switch, a countersunk through hole and a proximity switch, wherein the contactor switch comprises a rod cap and a switch feeler rod, the switch feeler rod is sleeved with a reset spring, the contactor switch is correspondingly matched with the countersunk through hole and can freely and vertically move, and the sensing end of the proximity switch points to the vertical direction of vertical movement of the contactor switch. The automatic powering-off mechanism has the advantages that the whole automatic powering-off mechanism is installed on an end cap, and the mechanism can wholly rotate with the end cap when being compressed. Therefore, the problem of twist deformation of the switch feeler rod does not occur, the automatic powering-off mechanism can be used for a long time, and the switch feeler rod is very short, small in size, simple in structure and low in cost.
Description
Technical field
The present invention relates to a kind of automatic power interruption mechanism of buffer of elevator, especially Elevator hydraulic buffer, belong to elevator and manufacture field.
Background technology
Along with the raising of people's living standard and the fast development of real estate, elevator is installed quantity and is become explosive increase, and the probability that elevator breaks down improves constantly, and therefore people also more and more pay attention to lift running safety.Buffer of elevator is that elevator breaks down, when car or the tenesmus of counterweight hypervelocity or upper punch, protect when velocity limiter all cannot complete its function with safety tongs life or cargo security last together with safety device.
Current buffer of elevator is hydraulic energy disperser mainly, and its basic functional principle can consult pertinent data, repeats no more herein.For energy disperser, its Main Function has two: one to be can play absolute safe buffering effect when lift car or counterweight drop at a high speed, ensures the personal safety of passenger to greatest extent, and reduces the damage of goods and elevator components as far as possible; Two is according to lift running safety requirement, when car or counterweight fall, when pounding energy disperser, automatically can cut off the electrical source of power of elevator traction machine.The mechanism of the Elevator hydraulic buffer automatic cut-off power produced in the market as shown in Figure 1, after buffering piston is compressed, be fixed on the switch feeler lever that piston end covers to move down, touch the closed type travel switch be arranged on cylinder body, cut off elevator power power supply with this.For water bumper, usually retracing spring is installed to automatically reset after can compressing, when retracing spring is compressed, also distortion twisting resistance can be produced except elastic force, practice shows that this twisting resistance can make buffering piston rotate, can cause switch feeler lever torsional deflection time serious, after causing energy disperser to reset, feeler lever cannot reuse, and must change.
Summary of the invention
For the problems referred to above, the present invention proposes a kind of buffer of elevator automatic power interruption mechanism, structure is simple, not fragile, and power-off is convenient.
For solving above technical matters, technical scheme provided by the invention is:
A kind of buffer of elevator automatic power interruption mechanism, it is characterized in that, comprise switch contacts, countersunk head through hole and proximity switch, described countersunk head through hole is positioned on the left of the end cap of water bumper, described switch contacts and countersunk head through hole corresponding matching, on the lower surface on the left of the end cap that described proximity switch is fixedly installed on water bumper;
Described switch contacts is vertically arranged, its cross section is T-shaped, and comprise pole cap and switch feeler lever, described pole cap is cylindrical, its diameter is R1, the center of pole cap is provided with the screw vertically arranged, and described switch feeler lever is cylindrical, and its diameter is R2, the upper end of switch feeler lever is provided with screw thread, pole cap is by screw and the upper end being threadedly connected to switch feeler lever, and the lower end of switch feeler lever is provided with the pin hole of level, and described pin hole place is configured with the pin mated with pin hole;
Described countersunk head through hole is vertically arranged, its cross section is T-shaped, comprise the positive stop end on top and the guide end of bottom, described positive stop end is cylindrical, its diameter is R3, and described guide end is cylindrical, and its Zhijiang is R4, described R3>R1>R4>R2, switch feeler lever and guide end free-running fit;
Retracing spring is sheathed with outside described switch feeler lever, described switch contacts inserts countersunk head through hole, the upper end of described retracing spring presses on the lower surface of pole cap, its lower end presses on the lower surface of positive stop end, the lower end of switch contacts is through countersunk head through hole, by pin and pin hole, with the connection of the end cap of water bumper, and realize switch contacts freely up and down moving in countersunk head through hole;
Described proximity switch is direct current 24V closed type proximity switch, its induction end points to the vertical direction that switch contacts moves up and down, proximity switch is by the coils connected in series of 24V direct supply and contactless switch, and contactless switch open contact is used for the three-phase 380V source of AC of connection elevator traction machine;
Further, pad is provided with between the lower surface on the left of the end cap of described proximity switch and water bumper;
Further, the upper surface of the end cap of described water bumper is provided with rubber pad;
Further, described proximity switch is inductance approach switch or Hall-type proximity switch.
Beneficial effect of the present invention is:
A kind of buffer of elevator automatic power interruption mechanism provided by the invention, its structure is simple, and reasonable in design, compare with existing Elevator hydraulic buffer power cutoff mechanism, its feature is:
1, this buffer of elevator automatic power interruption mechanism is all arranged on end cap, and when by compression, whole mechanism along with end cap integral-rotation, therefore can there will not be the switch feeler lever torsional deflection problem of that structure of Fig. 1, can use for a long time;
2, switch feeler lever is very short, compact, and structure is simple, with low cost.
Accompanying drawing explanation
Fig. 1 is common Elevator hydraulic buffer automatic power interruption mechanism schematic diagram in the market.
Fig. 2 schematic diagram of the present invention.
Fig. 3 switch contacts reset mode figure.
Fig. 4 switch contacts compressive state figure.
Fig. 5 electronic schematic diagram of the present invention.
Fig. 6 switch contacts and countersunk head through hole schematic diagram.
Fig. 7 travel switch reset mode figure.
Fig. 8 travel switch compressive state figure.
In figure, 1, switch contacts, 2, countersunk head through hole, 3, proximity switch, 4, water bumper, 5, end cap, 6, pole cap, 7, switch feeler lever, 8, pin hole, 9, pin, 10, positive stop end, 11, guide end, 12, retracing spring, 13, pad, 14, rubber pad, 15, travel switch, 16, power contactor, 17, travel switch.
Detailed description of the invention
embodiment one
A kind of buffer of elevator automatic power interruption mechanism as shown in the figure, it is characterized in that, comprise switch contacts 1, countersunk head through hole 2 and proximity switch 3, described countersunk head through hole 2 is positioned on the left of the end cap 5 of water bumper 4, described switch contacts 1 and countersunk head through hole 2 corresponding matching, on the lower surface on the left of the end cap 5 that described proximity switch 3 is fixedly installed on water bumper 4;
Described switch contacts 1 is vertically arranged, its cross section is T-shaped, comprises pole cap 6 and switch feeler lever 7, and described pole cap 6 is cylindrical, its diameter is R1, the center of pole cap 6 is provided with the screw vertically arranged, and described switch feeler lever 7 is cylindrical, and its diameter is R2, the upper end of switch feeler lever 7 is provided with screw thread, pole cap 6 is by screw and the upper end being threadedly connected to switch feeler lever 7, and the lower end of switch feeler lever 7 is provided with the pin hole 8 of level, and described pin hole 8 place is configured with the pin 9 mated with pin hole 8;
Described countersunk head through hole 2 is vertically arranged, its cross section is T-shaped, comprise the positive stop end 10 on top and the guide end 11 of bottom, described positive stop end 10 is cylindrical, its diameter is R3, and described guide end 11 is cylindrical, and its Zhijiang is R4, described R3>R1>R4>R2, switch feeler lever 7 and guide end 11 free-running fit;
Retracing spring 12 is sheathed with outside described switch feeler lever 7, described switch contacts 1 inserts countersunk head through hole 2, the upper end of described retracing spring 12 presses on the lower surface of pole cap 6, its lower end presses on the lower surface of positive stop end 10, the lower end of switch contacts 1 is through countersunk head through hole 2, by pin 9 and pin hole 8, with the connection of the end cap 5 of water bumper 4, and realize switch contacts 1 freely up and down moving in countersunk head through hole 2;
Described proximity switch 3 is direct current 24V closed type proximity switch 3, its induction end points to the vertical direction that switch contacts 1 moves up and down, proximity switch 3 is by the coils connected in series of 24V direct supply with contactless switch 16, and power contactor 16 open contact is used for the three-phase 380V source of AC of connection elevator traction machine;
Further, pad 13 is provided with between the lower surface on the left of the end cap 5 of described proximity switch 3 and water bumper 4;
Further, the upper surface of the end cap 5 of described water bumper 4 is provided with rubber pad 14.
Further, described proximity switch 2 is inductance approach switch or Hall-type proximity switch.
In the present embodiment, during power cutoff mechanism assembling, first pole cap is contained on switch feeler lever top, package retracing spring, from end cap top through countersunk head through hole, pressing pole cap makes the pin hole of switch feeler lever expose from the lower end of end cap, then installs pin, and the object of dress pin is ejected by switch feeler lever when preventing retracing spring from upspringing; In the lower end of end cap, proximity switch is installed, therebetween by pad adjustment height, to guarantee that switch feeler lever extending part, lower end when reset mode is not sensed by proximity switch.
Working process:
As shown in Fig. 3,4,5, when elevator normally works, proximity switch makes towing machine power contactor open contact close always, and elevator traction machine motor obtains electric; When car fall suddenly pound in energy disperser top end cover time, switch feeler lever is moved down, along with switch feeler lever moves down in proximity switch detection range, proximity switch normally closed contact disconnects, cause elevator traction machine, the power contactor coil blackout of connecting with it, thus cut off elevator traction electromechanical source
Designing points:
(1) R1, R2, R3 and R4, determines according to energy disperser end cap size;
(2) length of switch feeler lever is chosen suitable, and should ensure that pole cap assembles rear rubber pad and exceeds 5 ~ 10mm, when switch feeler lever moves down into extreme lower position, its lower end can exceed proximity switch bottom surface;
(3) retracing spring hardness is suitable, ensures that the plane pressing down rear pole cap is lower than the end face of rubber pad;
(4) proximity switch will select the metal inductive switch of detecting distance 8mm ~ 20mm scope, as inductance approach switch, Hall-type proximity switch;
(5) the countersunk head through hole position on end cap, can not interfere with the retracing spring on energy disperser when should ensure that switch feeler lever moves down.
embodiment two
As shown in Figure 7,8, in the present embodiment, travel switch 17 instead of the proximity switch 3 in embodiment 1, and the lower end of switch feeler lever 7 is hemisphere, described travel switch 17 is closed type travel switch, ensures that mechanical contact fully can contact with it when switch feeler lever 7 declines when travel switch 17 is installed.
The above; be only the present invention's preferably detailed description of the invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.
Claims (8)
1. a buffer of elevator automatic power interruption mechanism, it is characterized in that, comprise switch contacts, countersunk head through hole and proximity switch, described countersunk head through hole is positioned on the left of the end cap of water bumper, described switch contacts and countersunk head through hole corresponding matching, on the lower surface on the left of the end cap that described proximity switch is fixedly installed on water bumper.
2. a kind of buffer of elevator automatic power interruption mechanism as claimed in claim 1, it is characterized in that, described switch contacts is vertically arranged, its cross section is T-shaped, comprise pole cap and switch feeler lever, described pole cap is cylindrical, its diameter is R1, the center of pole cap is provided with the screw vertically arranged, and described switch feeler lever is cylindrical, and its diameter is R2, the upper end of switch feeler lever is provided with screw thread, pole cap is by screw and the upper end being threadedly connected to switch feeler lever, and the lower end of switch feeler lever is provided with the pin hole of level, and described pin hole place is configured with the pin mated with pin hole.
3. a kind of buffer of elevator automatic power interruption mechanism as claimed in claim 1, it is characterized in that, described countersunk head through hole is vertically arranged, and its cross section is T-shaped, comprises the positive stop end on top and the guide end of bottom, described positive stop end is cylindrical, its diameter is R3, and described guide end is cylindrical, and its Zhijiang is R4, described R3>R1>R4>R2, switch feeler lever and guide end free-running fit.
4. a kind of buffer of elevator automatic power interruption mechanism as claimed in claim 1, it is characterized in that, retracing spring is sheathed with outside described switch feeler lever, described switch contacts inserts countersunk head through hole, and the upper end of described retracing spring presses on the lower surface of pole cap, and its lower end presses on the lower surface of positive stop end, the lower end of switch contacts is through countersunk head through hole, by pin and pin hole, with the connection of the end cap of water bumper, and realize switch contacts freely up and down moving in countersunk head through hole.
5. a kind of buffer of elevator automatic power interruption mechanism as claimed in claim 1, it is characterized in that, described proximity switch is direct current 24V closed type proximity switch, its induction end points to the vertical direction that switch contacts moves up and down, proximity switch is by the coils connected in series of 24V direct supply and contactless switch, and contactless switch open contact is used for the three-phase 380V source of AC of connection elevator traction machine.
6. a kind of buffer of elevator automatic power interruption mechanism as claimed in claim 1, is characterized in that, be provided with pad between the lower surface on the left of the end cap of described proximity switch and water bumper.
7. a kind of buffer of elevator automatic power interruption mechanism as claimed in claim 1, it is characterized in that, the upper surface of the end cap of described water bumper is provided with rubber pad.
8. a kind of buffer of elevator automatic power interruption mechanism as claimed in claim 1, is characterized in that, described proximity switch is inductance approach switch or Hall-type proximity switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510588031.8A CN105129571A (en) | 2015-09-16 | 2015-09-16 | Automatic powering-off mechanism of elevator buffer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510588031.8A CN105129571A (en) | 2015-09-16 | 2015-09-16 | Automatic powering-off mechanism of elevator buffer |
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| CN105129571A true CN105129571A (en) | 2015-12-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510588031.8A Pending CN105129571A (en) | 2015-09-16 | 2015-09-16 | Automatic powering-off mechanism of elevator buffer |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109361385A (en) * | 2018-10-26 | 2019-02-19 | 江西中船航海仪器有限公司 | A kind of movement resets and limit safety device |
| CN110212786A (en) * | 2019-07-09 | 2019-09-06 | 哈尔滨理工大学 | A kind of crude oil electric dewatering transformer high voltage rectifier device |
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| CN100379669C (en) * | 2003-06-06 | 2008-04-09 | 三菱电机株式会社 | Elevator apparatus |
| CN203222400U (en) * | 2013-03-06 | 2013-10-02 | 蔡津鸿 | Elevator buffer |
| CN103420249A (en) * | 2012-05-22 | 2013-12-04 | 浙江快奥电梯有限公司 | Hydraulic buffer for elevator |
| CN203610977U (en) * | 2013-11-04 | 2014-05-28 | 江苏国力锻压机床有限公司 | Limiting structure of movable working table |
| CN203740788U (en) * | 2014-03-25 | 2014-07-30 | 上海青浦电梯配件有限公司 | High speed hydraulic buffer |
| CN203818317U (en) * | 2014-02-11 | 2014-09-10 | 山东阳光众泰机械工程有限公司 | Novel aerated concrete block overturning and bottom cover removing crane sliding plate |
| CN204249301U (en) * | 2014-10-30 | 2015-04-08 | 中山力劲机械有限公司 | Large size plastic jetting-moulding device safety tread |
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2015
- 2015-09-16 CN CN201510588031.8A patent/CN105129571A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100379669C (en) * | 2003-06-06 | 2008-04-09 | 三菱电机株式会社 | Elevator apparatus |
| CN103420249A (en) * | 2012-05-22 | 2013-12-04 | 浙江快奥电梯有限公司 | Hydraulic buffer for elevator |
| CN203222400U (en) * | 2013-03-06 | 2013-10-02 | 蔡津鸿 | Elevator buffer |
| CN203610977U (en) * | 2013-11-04 | 2014-05-28 | 江苏国力锻压机床有限公司 | Limiting structure of movable working table |
| CN203818317U (en) * | 2014-02-11 | 2014-09-10 | 山东阳光众泰机械工程有限公司 | Novel aerated concrete block overturning and bottom cover removing crane sliding plate |
| CN203740788U (en) * | 2014-03-25 | 2014-07-30 | 上海青浦电梯配件有限公司 | High speed hydraulic buffer |
| CN204249301U (en) * | 2014-10-30 | 2015-04-08 | 中山力劲机械有限公司 | Large size plastic jetting-moulding device safety tread |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109361385A (en) * | 2018-10-26 | 2019-02-19 | 江西中船航海仪器有限公司 | A kind of movement resets and limit safety device |
| CN110212786A (en) * | 2019-07-09 | 2019-09-06 | 哈尔滨理工大学 | A kind of crude oil electric dewatering transformer high voltage rectifier device |
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Application publication date: 20151209 |
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