CN1833991A - Two-way speed limiting stop gear for rotary wheel - Google Patents
Two-way speed limiting stop gear for rotary wheel Download PDFInfo
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- CN1833991A CN1833991A CN 200510049396 CN200510049396A CN1833991A CN 1833991 A CN1833991 A CN 1833991A CN 200510049396 CN200510049396 CN 200510049396 CN 200510049396 A CN200510049396 A CN 200510049396A CN 1833991 A CN1833991 A CN 1833991A
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- wheel
- brake
- speed limiting
- revolving
- stop mechanism
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Abstract
A bidirectional speed limiting and braking mechanism for the rotating wheel of lifting machine is composed of a rotating wheel, overspeed responding sleeve set, and barking rollers with frictional braking part for deceleration and braking. Said overspeed responding sleeve set can respond to the overspeed rotating wheel to trigger the braking rollers.
Description
[technical field]
The present invention is a kind of two-way speed limiting stop mechanism that is used for revolving wheel, is particularly useful for the hypervelocity of traction enhancement device is carried out the speed limit stop, so that its operating speed is limited in the speed range of setting.
[background technology]
Traction wheel is the common components of bonts such as elevator, building construction hoist and winch; during work; engine drives traction wheel; hauling rope on the traction wheel is promoted or landing cage (or car); in order to guarantee work safety, operating speed is limited in the speed range of setting, stop mechanism must be set (with when the traction enhancement device exceeds the speed limit on the above-mentioned traction enhancement device; as cause hypervelocity because of overload tenesmus, with its braking and shut down).Notification number is the technical scheme that the utility model patent of CN2677355Y discloses a kind of " traction sheave with stop function ", this scheme sticks into realization " suddenly " stop in the ratchet slot by ratchet when stop, there is not buffering, tend to produce bigger impulsive force, this impulsive force is very big to the harmfulness of whole draw gear.
[summary of the invention]
The technical assignment of the technical problem to be solved in the present invention and proposition is to overcome the defective that prior art exists, and a kind of two-way speed limiting stop mechanism that is used for revolving wheel is provided.For this reason, the present invention takes following technical proposals:
A kind of two-way speed limiting stop mechanism that is used for revolving wheel; comprise revolving wheel, hypervelocity response external member and brake wheel; it is characterized in that the hypervelocity of described hypervelocity response external member response revolving wheel and trigger brake wheel with revolving wheel rotates synchronously, on the described brake wheel effect have friction stop part with when brake wheel rotates to the stop of its deceleration realization to revolving wheel.During revolving wheel (obtaining the traction wheel, traction sheave etc. of power) hypervelocity from engine, hypervelocity response external member triggers brake wheel and revolving wheel rotates synchronously, and friction stop part acts on and on the brake wheel brake wheel is applied deceleration/decel and make it to slow down until stopping operating, finally reach purpose, thereby make bont normal operation in the speed range of setting the revolving wheel stop; Relative prior art, this scheme is the process of a deceleration to the stop of bont, impacts lessly, working process is reliable and stable.
Perfect as further supplementary sum to technique scheme, can also take following technique measures or its combination:
The coaxial setting of described revolving wheel and brake wheel.Make compact conformation, occupy less installation site during use.
Described hypervelocity response external member comprises and being constrained on rotationally near the locational forward and reverse ratchet of brake wheel that brake wheel is provided with the forward and reverse ratchet slot with described forward and reverse click-fit.
The different axle of described revolving wheel and brake wheel is provided with.
Described friction stop part is the friction shoe that acts on the brake wheel.
Described friction shoe acts on the end face of brake wheel.
The outside of described brake wheel is provided with the arcuation brake collar, and described friction shoe is distributed in the inboard of brake collar, and is tightened brake collar and described friction shoe is embraced on brake wheel by preload piece.Owing to by brake collar described friction shoe is embraced on brake wheel, the area of contact of friction shoe and brake wheel is big, and brake wheel was stressed evenly when brake wheel was applied deceleration/decel, stable action, braking is reliable, is easy to regulate the pretension degree by preload piece, demonstrates fully technical advantage.
Described friction shoe and brake collar are symmetrical arranged.Can be two-way (rise or descend) stop or speed limit, and on both direction, can reach identical stop effect.
Described preload piece is the adjusting bolt of being located on the described brake collar.Also can be that other has the structure of regulating the pretension ability.
Described brake wheel is provided with the travel switch link stopper.When making stop, touch travel switch by the trip switch link stopper power is quit work.
The present invention triggers brake wheel and revolving wheel synchronization action by hypervelocity response external member, and friction stop part acts on brake wheel is slowed down, and finally reaches the purpose to the revolving wheel stop, guarantees that revolving wheel turns round in the range of speed of setting; Relative prior art, the impact of its glancing impact is less, and working process is reliable and stable; Its compact conformation, flexible movements, it is less to take up space, reliable operation safety.
[description of drawings]
Fig. 1 is a kind of structural representation of the present invention.
Fig. 2 is an another kind of structural representation of the present invention.
Fig. 3 is the third structural representation of the present invention.
Fig. 4 is the 4th a kind of structural representation of the present invention.
Fig. 5 is the 5th a kind of structural representation of the present invention.
Fig. 6 is the scheme drawing of the 5th kind of structure applications of the present invention on bont.
[specific embodiment]
Embodiment one:
As shown in Figure 1, this stop mechanism is provided with the just inwardly rotating and traction wheel 4 concentric settings of brake wheel 1A of ratchet slot 11, oppositely interior ratchet slot 12 with 1 interior circle, forward ratchet 2A and reverse be coupling edge on traction wheel 4 (revolving wheel) of ratchet 2B, and all be connected with tension spring 7A on the forward and reverse ratchet as retracing spring, thereby with forward and reverse ratchet remain on break away from forward and reverse in the position of ratchet slot, guarantee traction wheel can be under engine drives normal operation; The friction shoe 3A that diaxon is connected on the conduct friction stop part on the pole 5 embraces on the cylindrical of brake wheel 1A relatively, and can regulate force of sliding friction between friction shoe and the brake wheel by the degree of tightness of preloading spring 6A on the adjusting yoke 8, reach the purpose of stop speed.Wherein rotating ratchet constitutes hypervelocity response external member with retracing spring.
During hypervelocity, forward ratchet 2A (or oppositely ratchet 2B) overcomes retracing spring under centrifugal action constraint is conflicted in just inside ratchet slot 11 (or oppositely ratchet slot 12), force brake wheel 1A to rotate with traction wheel 4, between friction shoe 3A and brake wheel 1A, produce friction force, brake wheel is applied deceleration/decel, to traction wheel 4 progressive stops.
Embodiment two:
As shown in Figure 2, this stop mechanism tightens on the cylindrical of brake wheel 1B friction band 3B as friction stop part, and can regulate friction by the degree of tightness of regulating preloading spring 6B and be with force of sliding friction between 3B and the brake wheel 1B; Other structure is with above-mentioned progressive stop mechanism.The progressive stop mechanism of this structure, the unilateral system stopping time, a unidirectional friction band is set gets final product (referring to rotation direction among the figure), in the two-way system stopping time, the opposite friction band of the two directions (not shown) of being advisable is set.Wherein rotating ratchet constitutes hypervelocity response external member with retracing spring.
During hypervelocity, forward ratchet 2A (or reverse ratchet 2B) overcomes the constraint of retracing spring and conflicts in just inside ratchet slot 11 (ratchet slot 12 oppositely) under centrifugal action, force brake wheel 1B to rotate with traction wheel 4, between friction band 3B and brake wheel 1B, produce friction force, brake wheel is applied deceleration/decel, to the progressive stop of traction wheel.
Embodiment three:
As shown in Figure 3, this stop mechanism is provided with just outwards the brake wheel 1C and traction wheel 4 coaxial settings of ratchet slot 13, reverse outer ratchet slot 14 with cylindrical, forward hypervelocity sensor 9A and oppositely hypervelocity sensor 9B be fixed on outside the traction wheel 4 (on frame) and be in transmission connection by the engagement of the gear ring on gear and traction wheel formation, lever 91A, the 91B of forward and reverse hypervelocity sensor touches respectively and is against on forward ratchet 2A and the reverse ratchet 2B, is connected with torsion spring 7C on the forward and reverse ratchet as retracing spring; On the interior circle of brake wheel friction shoe 3C is set, the predetermincd tension of adjusting friction shoe rear side preloading spring 6C can be regulated the force of sliding friction between friction shoe and the brake wheel.Wherein rotating ratchet, retracing spring and hypervelocity sensor three constitute hypervelocity response external member together.
During hypervelocity, forward hypervelocity sensor 9A (or the sensor 9B that oppositely exceeds the speed limit) action, remove its lever 91A (or 91B) stopping to forward ratchet 2A (or reverse ratchet 2B), the free end of forward ratchet 2A (or oppositely ratchet 2B) promptly touches under the promotion of engage spring 7C and just outwards is against in the ratchet slot 13 (or oppositely ratchet slot 14), force brake wheel 1C to rotate with traction wheel 4, between friction shoe 3C and brake wheel 4, produce friction force, brake wheel is applied deceleration/decel, to the progressive stop of traction wheel.
Embodiment four:
As shown in Figure 4; this progressive stop mechanism is the end that friction shoe 3D is arranged on brake wheel 1D with preloading spring 6D; other structure can be the same; promptly when hypervelocity; force brake wheel to rotate with traction wheel; thereby between friction shoe and brake wheel, produce friction force, brake wheel is applied deceleration/decel, the progressive stop of traction wheel.
Embodiment five:
As shown in Figure 5, the difference of this progressive stop mechanism and embodiment one is to embrace in the brake wheel 1E outside with the arcuation brake collar 3E2 that two symmetries are fixed on the base, the inboard fixed friction piece of each brake collar 3E1 tightens brake collar and described friction shoe is embraced on brake wheel by regulating bolt 6E (also can be other adjustment structures); Brake wheel is provided with travel switch link stopper P.During automatic brake, the area of contact of friction shoe and brake wheel is big, and brake wheel was stressed evenly when brake wheel was applied deceleration/decel, stable action, and braking is reliable.
As shown in Figure 6, be with the scheme drawing of structure applications shown in Figure 5 on bont, from the installation site of travel switch X1, the X2 of stop mechanism, revolving wheel X3 and reductor X4 and electrical motor X5, its compact conformation, volume is little.
Need to prove that to the progressive stop of revolving wheel, the stop process was impacted less, reliable and stable when essence of the present invention was hypervelocity; In order to illustrate essence of the present invention, what and practical structures thereof of the quantity of ratchet, ratchet slot is unimportant among above-mentioned several embodiment, all can do suitable variation according to actual needs; And the particular location that the concrete installation position of friction stop part also is not limited among above-mentioned several embodiment (is installed after can rotating an angle such as the brake collar among the embodiment five, thereby will regulate the side that bolt places brake wheel), can adjust according to field erected needs equally.In addition, in above-mentioned several embodiment, revolving wheel is coaxial setting with brake wheel, make compact conformation, volume is little, yet at some actual installation scenes, the transition drive mechanism also can be set between revolving wheel and brake wheel according to need can realize that different axle center is provided with, and does not give unnecessary details at this.
Claims (10)
1, a kind of two-way speed limiting stop mechanism that is used for revolving wheel; comprise revolving wheel, hypervelocity response external member and brake wheel; it is characterized in that the hypervelocity of described hypervelocity response external member response revolving wheel and trigger brake wheel with revolving wheel rotates synchronously, on the described brake wheel effect have friction stop part with when brake wheel rotates to the stop of its deceleration realization to revolving wheel.
2, the two-way speed limiting stop mechanism that is used for revolving wheel according to claim 1 is characterized in that the coaxial setting of described revolving wheel and brake wheel.
3, the two-way speed limiting stop mechanism that is used for revolving wheel according to claim 2; it is characterized in that described hypervelocity response external member comprises is constrained on rotationally near the locational forward and reverse ratchet of brake wheel, and brake wheel is provided with the forward and reverse ratchet slot with described forward and reverse click-fit.
4, the two-way speed limiting stop mechanism that is used for revolving wheel according to claim 1 is characterized in that the different axle of described revolving wheel and brake wheel is provided with.
5, the two-way speed limiting stop mechanism that is used for revolving wheel according to claim 1 is characterized in that described friction stop part is the friction shoe that acts on the brake wheel.
6, the two-way speed limiting stop mechanism that is used for revolving wheel according to claim 5 is characterized in that described friction shoe acts on the end face of brake wheel.
7, the two-way speed limiting stop mechanism that is used for revolving wheel according to claim 5; the outside that it is characterized in that described brake wheel is provided with the arcuation brake collar; described friction shoe is distributed in the inboard of brake collar, and is tightened brake collar and described friction shoe is embraced on brake wheel by preload piece.
8, the two-way speed limiting stop mechanism that is used for revolving wheel according to claim 7 is characterized in that described friction shoe and brake collar are symmetrical arranged.
9, the two-way speed limiting stop mechanism that is used for revolving wheel according to claim 7 is characterized in that described preload piece is the adjusting bolt of being located on the described brake collar.
10, the two-way speed limiting stop mechanism that is used for revolving wheel according to claim 1 is characterized in that described brake wheel is provided with the travel switch link stopper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510049396 CN1833991A (en) | 2005-03-18 | 2005-03-18 | Two-way speed limiting stop gear for rotary wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510049396 CN1833991A (en) | 2005-03-18 | 2005-03-18 | Two-way speed limiting stop gear for rotary wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1833991A true CN1833991A (en) | 2006-09-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510049396 Pending CN1833991A (en) | 2005-03-18 | 2005-03-18 | Two-way speed limiting stop gear for rotary wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1833991A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103011002A (en) * | 2012-12-21 | 2013-04-03 | 北京星光影视设备科技股份有限公司 | Centrifugal last-stage braking device and roller guiding device comprising same |
| CN114261865A (en) * | 2021-12-31 | 2022-04-01 | 海南大学 | Speed-limiting braking protection device and application thereof in elevator |
-
2005
- 2005-03-18 CN CN 200510049396 patent/CN1833991A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103011002A (en) * | 2012-12-21 | 2013-04-03 | 北京星光影视设备科技股份有限公司 | Centrifugal last-stage braking device and roller guiding device comprising same |
| CN103011002B (en) * | 2012-12-21 | 2016-03-16 | 北京星光影视设备科技股份有限公司 | Centrifugal final stage brake equipment and the cylinder rope guide comprising this brake equipment |
| CN114261865A (en) * | 2021-12-31 | 2022-04-01 | 海南大学 | Speed-limiting braking protection device and application thereof in elevator |
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