CN204355899U - A kind of velocity limiter for building hoist - Google Patents
A kind of velocity limiter for building hoist Download PDFInfo
- Publication number
- CN204355899U CN204355899U CN201420752461.XU CN201420752461U CN204355899U CN 204355899 U CN204355899 U CN 204355899U CN 201420752461 U CN201420752461 U CN 201420752461U CN 204355899 U CN204355899 U CN 204355899U
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- centrifugal
- block
- gear
- velocity limiter
- seat
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Abstract
A kind of velocity limiter for building hoist disclosed in the utility model, comprise the first gear, the second gear, gear wheel shaft, centrifugal seat, the first centrifugal-block, the second centrifugal-block, spring and shell, first gear is arranged on speed limited wheel, first gear and the second gears meshing, gear wheel shaft is connected with centrifugal seat through the second gear, the two ends of centrifugal seat are pivoted with the first centrifugal-block and the second centrifugal-block respectively, connected by spring between first centrifugal-block and the second centrifugal-block, outer casing inner wall is provided with the double wedge for the first centrifugal-block and the occlusion of the second centrifugal-block.The utility model structure is simple, safe and reliable, installation and repairing is convenient, adapt to range of use wide, the effect of two-way speed limiting can not only be played to cage, and the first centrifugal-block and the second centrifugal-block can be avoided in velocity limiter carrying or operational process in the situation that side travel occurs, make the first centrifugal-block and the second centrifugal-block and being engaged accurately between double wedge, guarantee the responsiveness of velocity limiter.
Description
Technical field
The utility model relates to technical field of engineering machinery, particularly relates to a kind of velocity limiter for building hoist.
Background technology
Building hoist is the manned cargo-carrying construction machinery and equipment often used in building, generally include upper frame, rail bracket, cage, Balance Iron, steel rope and towing machine etc., upper frame is provided with speed limited wheel, towing machine is arranged on base, makes cage and Balance Iron on guide rail bracket, do the motion of one rise and one drop with some steel ropes through traction-driven.Why building hoist can run in safe manned loading; mainly because it is equipped with velocity limiter; velocity limiter can limit the speed of dropped object fast in certain distance, is suitable for cargo hoisting, protects the life security of ground handling operator and is hung the damage of workpiece object.Velocity limiter is as safety guard most important in building hoist; along with the development of building construction technology; to the pay attention to day by day of building hoist and safety guard thereof; the further raising of operating needs; the problem of original velocity limiter in responsiveness and operation stability is more and more outstanding; in order to improve the Stability and dependability of building hoist velocity limiter, ensureing the safe handling of elevator, being necessary to improve the structure of velocity limiter and manufacture craft.
In prior art, velocity limiter is mostly unidirectional, its centrifugal seat only installs a centrifugal-block, realize two-way function and just need installation two unidirectional velocity limiters, both improve manufacturing cost like this, too increase the overall weight of lifting machinery, drive the motor of lifting machinery lifting then will add high-power, thus consume a large amount of electric energy.Meanwhile, velocity limiter is usually not in place owing to being engaged between centrifugal-block with double wedge, thus causes braking, and occurs safety misadventure.
In view of this, a kind of velocity limiter for building hoist of the present inventor's customized design, this case produces thus.
Utility model content
The purpose of this utility model is to provide a kind of velocity limiter for building hoist, and to realize carrying out two-way speed limiting to overspeed cage, accurate between centrifugal-block with double wedge is engaged, and improves the safety performance of equipment.
To achieve these goals, the technical solution of the utility model is as follows:
A kind of velocity limiter for building hoist, comprise the first gear, the second gear, gear wheel shaft, centrifugal seat, the first centrifugal-block, the second centrifugal-block, spring and shell, first gear is arranged on speed limited wheel, first gear and the second gears meshing, gear wheel shaft is connected with centrifugal seat through the second gear, the two ends of centrifugal seat are pivoted with the first centrifugal-block and the second centrifugal-block respectively, connected by spring between first centrifugal-block and the second centrifugal-block, outer casing inner wall is provided with the double wedge for the first centrifugal-block and the occlusion of the second centrifugal-block.
The teeth number of described second gear is less than 15.
The two ends of described centrifugal seat offer the first deep-slotted chip breaker and the second deep-slotted chip breaker that coordinate for the first centrifugal-block end and the second centrifugal-block end respectively.
Described double wedge is provided with four, and double wedge is distributed on the madial wall of velocity limiter.
From above-mentioned to description of the present utility model, compared to the prior art, the utility model tool has the following advantages:
The utility model structure is simple, safe and reliable, and installation and repairing is convenient, adapts to range of use wide.When brake failure, retarder off-axis or serious overload etc. cause the tenesmus of cage hypervelocity or hypervelocity upward movement, the utility model can play the effect of two-way speed limiting to cage, not only low cost of manufacture, long service life, and power consumption is low.Simultaneously, the utility model by arranging spring between the first centrifugal-block and the second centrifugal-block, the first centrifugal-block and the second centrifugal-block can be avoided in velocity limiter carrying or operational process in the situation that side travel occurs, make the first centrifugal-block and the second centrifugal-block and being engaged accurately between double wedge, guarantee the responsiveness of velocity limiter.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is structural representation of the present utility model;
Fig. 2 is section-drawing of the present utility model.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
A kind of velocity limiter for building hoist as depicted in figs. 1 and 2, comprise the first gear 1, second gear 2, gear wheel shaft 3, centrifugal seat 4, first centrifugal-block 5, second centrifugal-block 6, spring 7 and shell 8, first gear 1 is arranged on speed limited wheel 11, first gear 1 engages with the second gear 2, gear wheel shaft 3 is connected with centrifugal seat 4 through the second gear 2, the two ends of centrifugal seat 4 are pivoted with the first centrifugal-block 5 and the second centrifugal-block 6 respectively, connected by spring 7 between first centrifugal-block 5 and the second centrifugal-block 6, shell 8 inwall is provided with the double wedge 9 for the first centrifugal-block 5 and the occlusion of the second centrifugal-block 6.
The teeth number of the second gear 6 of this embodiment is less than 15, and the second gear 6 can accomplish that profile deadweight is lighter and handier compared to existing technology, reduces the unbalanced moment of rotatable parts, improves running stability.
In order to obtain good statical equilibrium effect, improve traveling comfort, the first deep-slotted chip breaker 51 and the second deep-slotted chip breaker 61 coordinated for the first centrifugal-block 5 end and the second centrifugal-block 6 end is offered at the two ends of centrifugal seat 4 respectively.
In order to be conducive to the first centrifugal-block 5 and the second centrifugal-block 6 effectively can be engaged with double wedge 9, the double wedge 9 of this embodiment can be provided with four, and double wedge 9 is distributed on the madial wall of velocity limiter.
When the utility model uses, when elevator normally runs, the steel rope that cage is hung in traction runs with normal speed, and drive the speed limited wheel 11 on upper frame to rotate, the first gear 1 be contained on speed limited wheel 11 rotates thereupon, simultaneously, the the second gear 2 driven gear axle 3 engaged with the first gear 1 rotates, and then the first centrifugal-block 5 in centrifugal seat 4 and the second centrifugal-block 6 are also with gear wheel shaft synchronous axial system, first centrifugal-block 5 and the second centrifugal-block 6 are under the influence of centrifugal force, overcome the pulling force of spring 7, while rotate, outwards open on one side, when cage (as: brake failure for a certain reason, retarder off-axis, serious overload etc.) cause hypervelocity decline or rise time, first centrifugal-block 5 and the second centrifugal-block 6 continue outwards to open, and be stuck in double wedge 9 place of velocity limiter shell 8, the gear wheel shaft 3 of velocity limiter is stopped operating, speed limited wheel also stops thereupon, now, through the steel rope of speed limited wheel 11 under the effect of friction force, be decelerated to stopping gradually.Because velocity limiter is provided with two pieces of symmetrical first centrifugal-block 5 and second centrifugal-blocks 6, so no matter cage hypervelocity upwards or downwards, velocity limiter can realize the two-way stop of cage.
The utility model structure is simple, safe and reliable, and installation and repairing is convenient, adapts to range of use wide.When brake failure, retarder off-axis or serious overload etc. cause the tenesmus of cage hypervelocity or hypervelocity upward movement, the utility model can play the effect of two-way speed limiting to cage, not only low cost of manufacture, long service life, and power consumption is low.Simultaneously, the utility model by arranging spring 7 between the first centrifugal-block 5 and the second centrifugal-block 6, the first centrifugal-block 5 and the second centrifugal-block 6 can be avoided in velocity limiter carrying or operational process in the situation that side travel occurs, make the first centrifugal-block and the second centrifugal-block and being engaged accurately between double wedge, guarantee the responsiveness of velocity limiter.
Above-described embodiment and graphic and non-limiting product form of the present utility model and style, any person of an ordinary skill in the technical field, to its suitable change done or modification, all should be considered as not departing from patent category of the present utility model.
Claims (4)
1. the velocity limiter for building hoist, it is characterized in that: comprise the first gear, the second gear, gear wheel shaft, centrifugal seat, the first centrifugal-block, the second centrifugal-block, spring and shell, first gear is arranged on speed limited wheel, first gear and the second gears meshing, gear wheel shaft is connected with centrifugal seat through the second gear, the two ends of centrifugal seat are pivoted with the first centrifugal-block and the second centrifugal-block respectively, connected by spring between first centrifugal-block and the second centrifugal-block, outer casing inner wall is provided with the double wedge for the first centrifugal-block and the occlusion of the second centrifugal-block.
2. a kind of velocity limiter for building hoist as claimed in claim 1, is characterized in that: the teeth number of described second gear is less than 15.
3. a kind of velocity limiter for building hoist as claimed in claim 1, is characterized in that: the two ends of described centrifugal seat offer the first deep-slotted chip breaker and the second deep-slotted chip breaker that coordinate for the first centrifugal-block end and the second centrifugal-block end respectively.
4. a kind of velocity limiter for building hoist as claimed in claim 1, is characterized in that: described double wedge is provided with four, and double wedge is distributed on the madial wall of velocity limiter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420752461.XU CN204355899U (en) | 2014-12-03 | 2014-12-03 | A kind of velocity limiter for building hoist |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420752461.XU CN204355899U (en) | 2014-12-03 | 2014-12-03 | A kind of velocity limiter for building hoist |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204355899U true CN204355899U (en) | 2015-05-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420752461.XU Expired - Fee Related CN204355899U (en) | 2014-12-03 | 2014-12-03 | A kind of velocity limiter for building hoist |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204355899U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105864327A (en) * | 2016-06-07 | 2016-08-17 | 四川大学 | Engaging type mechanical speed limiting mechanism |
-
2014
- 2014-12-03 CN CN201420752461.XU patent/CN204355899U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105864327A (en) * | 2016-06-07 | 2016-08-17 | 四川大学 | Engaging type mechanical speed limiting mechanism |
| CN105864327B (en) * | 2016-06-07 | 2018-04-03 | 四川大学 | Engagement type mechanical speed limiting mechanism |
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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: 20150527 Termination date: 20151203 |
|
| EXPY | Termination of patent right or utility model |