CN102935968B - Roof-impacting preventing construction lift - Google Patents

Roof-impacting preventing construction lift Download PDF

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Publication number
CN102935968B
CN102935968B CN201210478137.9A CN201210478137A CN102935968B CN 102935968 B CN102935968 B CN 102935968B CN 201210478137 A CN201210478137 A CN 201210478137A CN 102935968 B CN102935968 B CN 102935968B
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CN
China
Prior art keywords
cage
actuating
impacting
roof
preventing
Prior art date
Application number
CN201210478137.9A
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Chinese (zh)
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CN102935968A (en
Inventor
陈浩然
刘林峰
贾玉峰
吴传戈
刘苗
张铁锤
李涛
赵晶
Original Assignee
郑州市长城机器制造有限公司
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Priority to CN201210478137.9A priority Critical patent/CN102935968B/en
Publication of CN102935968A publication Critical patent/CN102935968A/en
Application granted granted Critical
Publication of CN102935968B publication Critical patent/CN102935968B/en

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Abstract

The invention relates to the field of construction lifts and particularly relates to a roof-impacting preventing construction lift. The roof-impacting preventing construction lift comprises a tower frame and a lifting cage assembled on the tower frame through a guide roller, wherein the top of the lifting cage is provided with a driving device; the driving device is meshed with a rack arranged on the tower frame through a gear; the upper end of the tower frame is provided with a roof-impacting preventing section extending upwards from the upper end of the rack; when the gear of the driving device breaks away from the rack from the upper end of the rack, the distance between the top of the lifting cage and the upper end of the roof-impacting preventing section is not smaller than the roof-impacting height of the lifting cage; and the gear runs upwards along with the lifting cage and breaks away from the rack in the working process of the construction lift if the lifting cage is not stopped in the set position, and at the moment, the force for driving the lifting cage to lift disappears to ensure that the lifting cage keeps within the roof-impacting height, so that the roof-impacting accident of the lifting cage is avoided. By using the roof-impacting preventing construction lift provided by the invention, the roof-impacting problem of the lifting cage of the traditional construction lift is solved.

Description

A kind of preventing colliding with top building hoist

Technical field

The present invention relates to building hoist field, especially a kind of preventing colliding with top building hoist.

Background technology

Building hoist is otherwise known as construction elevator usually.The kind of building hoist is a lot, has counterweightless and has counterweight two kinds, be divided into manual type and automatic control type by its mode by its operation scheme.It can also add converter plant and PLC control module on demand, can also add floor call devices and leveling device in addition.The building hoist major part used in the market is counterweightless formula, drive system is placed in above cage, can reduce noise in cage on the one hand, and headroom in cage is increased, also make simultaneously transmission more steadily, mechanism vibrations is less, counterweightless design also simplify installation process; For the ease of the control of construction elevator with it is intelligent, construction elevator can also install frequency converter, not only energy-conservation but also can infinite speed variation, runs more steady, takes also more comfortable; Install leveling device construction elevator control get up more convenient, rest in more accurately need stop floor; Installing floor call devices can be able to make information flow when using more convenient, makes management more convenient.

At secure context; current construction elevator is guaranteed; first for electrical safety ensures; construction elevator is provided with the travel switches such as sliding door travel switch, clamshell doors travel switch, roof door travel switch, upper limit travel switch, lower limit travel switch; as long as there is any one travel switch to be in guard mode, electrical motor will be in braking state.But the cage of the overwhelming majority in current building hoist is assemblied on pylon by guide roller, during work, cage is moved up and down by the rolling of guide roller on pylon, the propulsive effort that wherein cage moves up and down comes from actuating device, as described above, the cage top of cage is located at by actuating device, generally, actuating device is provided with gear, pylon is provided with the tooth bar of answering with described gear mesh, in current building hoist, tooth bar is all the tops always extending to pylon from bottom to top, the lifting engaging each other drive cage between wheel and rack, according to relevant criterion, cage has certain height of rushing to summit, this height of rushing to summit is limited by above-mentioned upper limit travel switch, but in actual production process, due to the uncertainty of electrical control, as factors such as electrical damage, the phenomenon that cage is rushed to summit still exists, this kind of situation is once occur, to directly threaten the life security of staff, cause the loss that cannot retrieve, in addition, in current building hoist, because needs prevent cage overweight, cage is all hung on actuating device by sensor bearing pin, and sensor bearing pin is hollow structure, therefore limited strength, owing to being subject to the shearing of cage for a long time, therefore unavoidably there will be off-axis phenomenon, and then draw the potential safety hazard causing cage to fall, this obviously also greatly reduces the safety factor of building hoist.

In sum, still there is the potential safety hazard that cage is rushed to summit and cage falls in current building hoist.

Summary of the invention

The object of the present invention is to provide a kind of preventing colliding with top building hoist, the problem of rushing to summit with the cage solving existing building hoist.

In order to solve the problem, preventing colliding with top building hoist of the present invention is by the following technical solutions: preventing colliding with top building hoist, comprise pylon and be assemblied in the cage on pylon by guide roller, the cage top of cage has actuating device, actuating device is engaged with the tooth bar that pylon is arranged by gear, the upper end of pylon has preventing colliding with top section, preventing colliding with top section upwards extends from the upper end of tooth bar, when the gear of actuating device departs from from tooth bar upper end and tooth bar, the distance of cage top and preventing colliding with top section upper end is not less than the height of rushing to summit of cage.

Also be provided with preventing colliding with top travel switch between cage and pylon, when this preventing colliding with top travel switch is in guard mode, gear still engages with tooth bar.

Described cage hangs on actuating device by sensor bearing pin, is also provided with horizontal safety plug between actuating device and cage, and this safety plug was not subject to the shearing of actuating device and cage before sensor bearing pin damages.

Have gap on the outer peripheral face of described safety plug and cage or between the hole wall of the respective pin hole that actuating device is arranged, this gap makes the shearing of safety plug by actuating device and cage before sensor bearing pin damages.

Because the pylon upper end of preventing colliding with top building hoist of the present invention has preventing colliding with top section, preventing colliding with top section upwards extends from the upper end of tooth bar, when the gear of actuating device departs from from tooth bar upper end and tooth bar, the distance of cage top and preventing colliding with top section upper end is not less than the height of rushing to summit of cage, therefore, in the process of building hoist work, if because the maloperation of staff or the fault of related electric parts cause cage not when stopping in the position set, gear is upwards walked with cage and is departed from tooth bar, the power now driving cage to rise disappears, within making cage remain on height of rushing to summit always, thus avoid cage to rush to summit the generation of accident, because rack-and-gear is pure physical construction, therefore absolute reliability can be ensured, as can be seen here, the problem that the cage that preventing colliding with top building hoist of the present invention solves existing building hoist is rushed to summit.

Further, described preventing colliding with top travel switch can be used as one barrier before preventing colliding with top section, avoids the disengaging of wheel and rack in most cases, ensures normal, the continuous working of building hoist; Described safety plug can replace sensor axis to ensure the mounting of cage and actuating device automatically when sensor pin axle fracture, thus the accident preventing cage from falling occurs; Gap, as the term suggests refer to very little interval, adopt the gap between safety plug and corresponding pin-and-hole to carry out assurance pin before sensor bearing pin damages, not to be subject to the shearing of actuating device and cage that safety plug then can be made to take over corresponding sensor bearing pin in the moment of sensor pin axle fracture work, after reducing sensor pin axle fracture, cage is to the impact of safety plug, optimizes the safety performance of cage further.

Accompanying drawing explanation

Fig. 1 is the structural representation of the embodiment 1 of preventing colliding with top building hoist of the present invention;

Fig. 2 is the structural representation of the cage in Fig. 1;

Fig. 3 is the connection structure schematic diagram of actuating device and cage.

Detailed description of the invention

The embodiment 1 of preventing colliding with top building hoist of the present invention, as Figure 1-3, comprise pylon 11, pylon 11 is equipped with cage 12, the top of cage 12 has actuating device 13, actuating device 13 is by gear (not shown) outputting power, pylon 11 is fixedly equipped with tooth bar 14, cage 12 can be movable in the vertical direction along pylon 11 with engaging of this tooth bar 14 by said gear, in addition, cage 12 is also equipped with guide roller (not shown) and coordinates by leading on vertical between guide roller with pylon 11, anticreep coordinates in the horizontal direction, preventing colliding with top travel switch is also provided with between cage 12 and pylon 11, above structure is prior art, it will not go into details herein, unlike the prior art, the upper end of pylon 11 has preventing colliding with top section 111, preventing colliding with top section 111 upwards extends from the upper end of tooth bar 14, when the gear of actuating device 13 departs from from tooth bar 14 upper end and tooth bar 14, the distance of cage 12 top and preventing colliding with top section 111 upper end is not less than the height of rushing to summit of cage 12, it is to be noted, when described preventing colliding with top travel switch is in guard mode, gear still engages with tooth bar 14.Cage 12 hangs on actuating device 13 by sensor bearing pin 15, horizontal safety plug 16 is also provided with between actuating device 13 and cage 12, this safety plug 16 was not subject to the shearing of actuating device 13 and cage 12 before sensor bearing pin 15 damages, specifically, between the hole wall of the respective pin hole that the outer peripheral face of safety plug 16 and actuating device 13 are arranged, there is gap, this gap makes safety plug 16 before sensor bearing pin 15 damages, not be subject to the shearing of actuating device 13 and cage 12, certainly, in other embodiments, gap can also be set by between the hole wall of respective pin hole that arranges on the outer peripheral face and cage of safety plug, with the shearing making safety plug not be subject to actuating device and cage before sensor bearing pin damages.

Claims (4)

1. preventing colliding with top building hoist, comprise pylon and be assemblied in the cage movable in the vertical direction along pylon on pylon by guide roller, the cage top of cage has actuating device, actuating device is engaged with the tooth bar that pylon is arranged by gear, it is characterized in that, the upper end of pylon has preventing colliding with top section, preventing colliding with top section upwards extends from the upper end of tooth bar, when the gear of actuating device departs from from tooth bar upper end and tooth bar, the distance of cage top and preventing colliding with top section upper end is not less than the height of rushing to summit of cage.
2. preventing colliding with top building hoist according to claim 1, is characterized in that, is also provided with preventing colliding with top travel switch between cage and pylon, and when this preventing colliding with top travel switch is in guard mode, gear still engages with tooth bar.
3. preventing colliding with top building hoist according to claim 1 and 2, it is characterized in that, described cage hangs on actuating device by sensor bearing pin, also be provided with horizontal safety plug between actuating device and cage, this safety plug was not subject to the shearing of actuating device and cage before sensor bearing pin damages.
4. preventing colliding with top building hoist according to claim 3, it is characterized in that, have gap on the outer peripheral face of described safety plug and cage or between the hole wall of the respective pin hole that actuating device is arranged, this gap makes the shearing of safety plug by actuating device and cage before sensor bearing pin damages.
CN201210478137.9A 2012-11-22 2012-11-22 Roof-impacting preventing construction lift CN102935968B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210478137.9A CN102935968B (en) 2012-11-22 2012-11-22 Roof-impacting preventing construction lift

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210478137.9A CN102935968B (en) 2012-11-22 2012-11-22 Roof-impacting preventing construction lift

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CN102935968A CN102935968A (en) 2013-02-20
CN102935968B true CN102935968B (en) 2015-06-17

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106429743A (en) * 2016-08-24 2017-02-22 无锡科通工程机械制造有限公司 Lifting mechanism
CN107601217A (en) * 2017-11-07 2018-01-19 重庆工业职业技术学院 Lowering or hoisting gear and its application method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2034280A (en) * 1978-11-10 1980-06-04 Rhodes & Partners Ltd H Elevator Catch Gear
CN201080399Y (en) * 2007-05-30 2008-07-02 广州市京龙工程机械有限公司 Inverse type mounting construction hoist
CN201873404U (en) * 2010-09-21 2011-06-22 江苏申锡建筑机械有限公司 Safety device for construction elevator
CN202321859U (en) * 2011-10-21 2012-07-11 中联重科股份有限公司 Anti-over-hoisting device of elevator and elevator
CN202988468U (en) * 2012-11-22 2013-06-12 郑州市长城机器制造有限公司 Roof-impacting prevention construction lift

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS619881Y2 (en) * 1979-12-11 1986-03-29

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2034280A (en) * 1978-11-10 1980-06-04 Rhodes & Partners Ltd H Elevator Catch Gear
CN201080399Y (en) * 2007-05-30 2008-07-02 广州市京龙工程机械有限公司 Inverse type mounting construction hoist
CN201873404U (en) * 2010-09-21 2011-06-22 江苏申锡建筑机械有限公司 Safety device for construction elevator
CN202321859U (en) * 2011-10-21 2012-07-11 中联重科股份有限公司 Anti-over-hoisting device of elevator and elevator
CN202988468U (en) * 2012-11-22 2013-06-12 郑州市长城机器制造有限公司 Roof-impacting prevention construction lift

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
重卡涂装线专用SCD型双导柱升降机;田学坤等;《建筑机械化》;20090731;第44-46页 *

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