CN1396106A - Spiral propeller - Google Patents

Spiral propeller Download PDF

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Publication number
CN1396106A
CN1396106A CN 02104036 CN02104036A CN1396106A CN 1396106 A CN1396106 A CN 1396106A CN 02104036 CN02104036 CN 02104036 CN 02104036 A CN02104036 A CN 02104036A CN 1396106 A CN1396106 A CN 1396106A
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CN
China
Prior art keywords
spiral
spiral lifting
lifting wheel
nipper wheels
saddle
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Application number
CN 02104036
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Chinese (zh)
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CN1179875C (en
Inventor
林有
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林有
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Priority to CN01107629 priority Critical
Priority to CN01107629.1 priority
Application filed by 林有 filed Critical 林有
Priority to CNB021040362A priority patent/CN1179875C/en
Publication of CN1396106A publication Critical patent/CN1396106A/en
Application granted granted Critical
Publication of CN1179875C publication Critical patent/CN1179875C/en

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Abstract

A screw propeller for elevator or hoist is composed of screw lifting gears, engaging gears matched with the said screw lifting gears and fixed tracks for supporting the said engaging gears. It features that it has variable multiple supporting points, so reducing the load pressure and time of each part and elongating their service life.

Description

Spiral propeller

Technical field

The present invention relates to the jacking equipment of elevator, exactly is a kind of spiral propeller that utilizes the liftable elevator that spiral lifting makes.This propelling unit provides a kind of new safe up-down mode, can be widely used in can improving the safety performance of jacking system to a great extent in the multiple jacking systems such as elevator, elevator.

Background technology

Since first elevator of ground difficult to understand this (Otis) invention, the requirement of living that further develops along with technology with people, elevator develops into a huge industry gradually, its application is more and more wider, and more and more be subjected to people, especially be subjected to the welcome of the country of developed country and populous and geographical resource rareness, and be evolved into the skyscraper imperative equipment.

At present, the elevator of vertical lift, in the high-rise for people up and down and the elevator of conveying objects, its jacking system adopts remains the wirerope elevator system, be that the top of elevator is fixed with the wirerope in order to traction elevator, wirerope is drawn from the elevator top and is upward through two pulleys that are arranged on saddle top, is connected on the guiding piece downwards again, during lifting, with its lifting of power electric machine travel.This mode is very high to the requirement of wirerope, pulley, pulley support bar, particularly higher to adjustable height elevator.

Because from mechanism, above-mentioned device is the main object of load-bearing, wirerope will bear the weight of lift car itself and the weight of contained passenger of car or article, wirerope is given pulley with the weight transmitting of being carried, after pulley is stressed, power is passed to saddle by roller arm, saddle passes to ground with power again, except that wirerope, the most outstanding stressed part is pulley and pulley yoke, and the strong point of car and contained passenger or Item Weight concentrated on the small contact surface of pulley and wirerope, strength is very concentrated.

At first, for wirerope, be limited to our present manufacturing technology, the pulling force that unit wirerope cross-sectional plane bears is limited, and there is tired problem again in wirerope.Certain toughness and enough radial distance must be arranged to guarantee its intensity for wirerope, common way is the rope that adopts one group of wirerope to form.Elevator in the high-rise, the pulling force maximum that wirerope bore when beginning to rise, especially for express elevator, though the pulling force that normal operation bears is not very big, but its pulling force that is born when rising suddenly is far longer than pulling force just often, the quantity that must increase wirerope like this is to bear so big pulling force, the negative effect that brings also clearly, be exactly the weight that increases wirerope group itself greatly, increased the burden of wirerope, for the very high building of floor, often the weight of wirerope is greater than the weight of lift car.

Simultaneously, the problem of aging that wirerope exists remains a very big difficulty, the consequence that it brings has two: the one, elongate wirerope, elevator will use for a long time continually, wirerope in use for some time, will slowly wear out, its toughness reduces, because long-term load-bearing, wirerope is subjected to the force-extension effect, slowly be elongated, the floor distance that causes lift car to stop has error, the contingency that causes thus for fear of this unnecessary sum of errors, need regularly to detect, remove the wirerope that grows,, just must change wirerope and bring the disastrous effect of fracture to prevent that its toughness and intensity from reducing if the wirerope of removing reaches certain-length.The 2nd, wirerope can rupture.After wirerope is aging, its strength degradation, the ability drop of load capacity, and steel cable is made up of many wireropes, every wirerope is because manufacture characteristic of itself and material constitute different, different service life and fatigue exponent are all arranged, exist difference, even also there is this problem in the wirerope that same batch of material is made, and wirerope is along with the variation at position own, its intensity and toughness all change to some extent, simultaneously, between the different wireropes, all can change owing to a variety of causes is stressed between the different parts of wirerope, the wirerope period of service is long, the wirerope that intensity and toughness are a little bit poorer a little or its a certain position will take place to bear weight and the cracking that causes, even open circuited phenomenon, if there is a wirerope to disconnect, all the other wirerope stressing conditions also change thereupon, to such an extent as to can cause the disconnection of whole steel cable, cause a serious accident.Wirerope is oversize, and the accident happening part is indeterminate, also is difficult to determine, terms of settlement can only be the inspection of regularly doing in all directions, so since, often increased and safeguarded and the cost of maintenance.

Secondly, prior art adopts pulley that wirerope is done and slides up and down, and the stress point of pulley has only the contact surface of small arc, and as a upholder, its load-bearing is too powerful, damages or produce skidding easily; Pulley is with the stressed pulley support bar that passes to, and simultaneously, the pulley support bar also bears same immense pressure, and bearing surface is single relatively, if be damaged, is difficult to remedy, and can produce quite serious contingency.

Again secondly, the power of above-mentioned elevator lifting system is provided by other electrical motor, when electrical motor breaks down or during sudden power, elevator runs out of steam, can't work on, passenger in the elevator certainly will be trapped in the lift car the inside, can't take action, the people that must seek help from the car outside rescues, otherwise can bring danger to the trapped person, also can produce moral injury even escape danger, just in case lift car rests on up and down between the floor, it is very difficult that rescue work just becomes.Therefore, must pay close attention to the problems referred to above at any time, this has increased a lot of pressure certainly will for the maintenance and the maintenance work of elevator.

Secondly, elevator also exists sizable difficulty and danger when mounted.Steel cable is the main accessory of cage lifter, and the installation of steel cable must rely on saddle, so before steel cable is installed, must put up saddle, and the installation of saddle must be operated in the air with manpower, bring the danger of aerial operation to the installer, simultaneously, the installation of steel cable need be passed steel cable earlier the top of saddle, draw again, it is little that the installation of elevator is provided with the space, need to install, otherwise the heavy weight steel cable can damage miscellaneous equipment very carefully, even can hurt installer's personal safety.

At this, keep the normal operation of elevator, ensure passenger's personal safety, must carry out frequent maintenance and maintenance to above-mentioned elevator, though the reliability of now a lot of device fabrications is very high, but the hidden danger that this structure is brought exists constantly, principle in line with respectful life security, must provide safe and reliable elevator ride environment to the passenger, bring thus artificial, service expenditure is very high, need periodical maintenance, detection, for example new elevator detected once in 1 year, used the elevator more than 5 years to take 6 months even shorter time.This not only brings increasing considerably of use cost, and has influenced the daily use of elevator, brings a lot of inconvenience to the passenger.

Various contingencies often take place in the elevator that the shortcoming that above-mentioned elevator lifting system brings causes generally using at present, fall suddenly as elevator etc.Address the above problem, can bring better safety measure to elevator undoubtedly, failure-free guarantees for the personal safety of elevator passenger provides more.

So, at the problems referred to above, can provide the lifting structure of safety and reliability, will bring great improvement to the safety of elevator, elevator and development.

Summary of the invention

The safety problem that phenomenons such as characteristics of the present invention have been to provide a kind of safer failure-free can make the spiral propeller of elevator lifting, and, fracture aging as wirerope and the pulley of having avoided that the structure of steel cable cage lifter brings is unbalance, skid cause.

Another important improvement of the present invention is the bearing position of weight is scatter, and enables the gravity that elevator is born at a plurality of positions.

Another important characteristic of the present invention is to reduce the elevator especially production and the daily attention maintenance cost of high rise elevator.

The present invention includes the spiral lifting wheel, take turns the nipper wheels of interlock and the trapped orbit that supports nipper wheels with spiral lifting.Wherein:

Spiral lifting wheel is fixed on car top for having the runner of spiral external tooth, drive car and move up and down, and with the nipper wheels interlock;

Nipper wheels can be along the truncated cone runner of axial rotation of self, vertically evenly is fixed on the appropriate location of trapped orbit along saddle, and cooperates with the spiral lifting wheel; The outer flank of tooth contact matching of its occlusal surface and spiral lifting wheel is a wire;

Trapped orbit is arranged between the saddle of elevator, promptly is fixed between the vertical bracing frame of saddle, and appropriate location is set with nipper wheels on it.

Above-mentioned this structure makes the present invention can avoid the danger of being brought by the wirerope lifting, and the strong point is improved to the spiral lifting wheel of dispersion and the support zone of a plurality of changes between the nipper wheels by simple sheave segment support, reduced bearing pressure and time of each parts, can increase their service life on the contrary, simultaneously, the damage of part parts or forfeiture, can not destroy single-piece structure of the present invention, all have new support zone to support no matter the spiral lifting wheel rises to any position, its safety performance improves greatly.

Above-mentioned spiral lifting wheel can be fixed on the bottom of lift car.

The spiral lifting wheel is provided with one at least, can be provided with one, both sides and the nipper wheels interlock that is distributed on the trapped orbit of above-mentioned car both sides from lift car, this set can increase considerably the weight of spiral lifting wheel, unless suitable intensity and enough light metal are arranged, perhaps elevator is smaller, does not need powerful especially power traction.Generally speaking, can adopt two, three or four spiral lifting wheels, be evenly distributed on every side of car, each spiral lifting wheel nipper wheels interlock cooresponding separately with it, can increase simultaneously the driving device that makes the synchronized operation of a plurality of spiral lifting wheel, this driving device adopts existing driving device, and for example chain gear, gear transmission get final product.

The steel cable cage lifter is the steel cable drive lift car lifting by perpendicular movement, what the present invention adopted is that spiral lifting wheel spiral mode of motion causes elevator, elevator to move up and down, change more than the support zone and with variation highly, pressure and time that each support zone bears have been reduced, increased whole spiral propeller can bear weight, improved its safety performance.

Description of drawings

Fig. 1 is the structural representation of a kind of frame mode of the present invention,

Fig. 2 is the structural representation of the present invention's trapped orbit shown in Figure 1,

Fig. 3 is the structural representation of the another kind of frame mode of the present invention,

Fig. 4 is the structural representation of the present invention's trapped orbit shown in Figure 3,

Fig. 5 is the structural representation of the trapped orbit of another embodiment of the present invention.

The structural representation that Fig. 6 cooperates with the spiral lifting wheel for the present invention's frame mode nipper wheels shown in Figure 3,

Fig. 7 is the structural representation of a kind of frame mode of the present invention,

Fig. 8 is the structural representation of trapped orbit of the present invention shown in Figure 7.

The specific embodiment

Shown in Fig. 1,2, the present invention includes spiral lifting wheel 120, driving device (170,171), take turns the nipper wheels 140 of 120 interlocks, the position-limited rack 110 of spiral lifting wheel 120 and the trapped orbit 130 that supports nipper wheels 140 with spiral lifting.Wherein:

Spiral lifting wheel 120 has two for having the runner 122 of spiral external tooth, is symmetrically distributed to be fixed on the both sides midway location at lift car 180 tops, and traction car 180 moves up and down, and with nipper wheels 140 interlocks; The upper end of each spiral lifting wheel 120 all is fixed with the position-limited rack 110 in order to constraint spiral lifting wheel nipper wheels 140 so that it can closely cooperate in lifting, the other end of position-limited rack 110 rollably is stuck in the vertical bracing frame 151 of saddle 150 by slide-bar or ball 111.

The external tooth 122 of spiral lifting wheel has two at least, so that the nipper wheels 140 that interlock cooperates with it simultaneously, also avoids single nipper wheels 140 to damage the adverse effect that causes; Under the prerequisite that meets present safety performance and rising or falling speed, three or four external tooths 122 are proper.

Driving device is gear system 171, is driven by motor 170, is connected and fixed two spiral lifting wheels 120 on the car 180, is connected in the wheel shaft 121 of two spiral lifting wheels, and synchronizes them operation;

Nipper wheels 140, can be along the truncated cone runner of axial rotation of self, evenly be fixed on the centre of trapped orbit 130 along the vertical bracing frame 151 of elevator saddle 150, and stretch out to the direction of car 180, cooperate with spiral lifting wheel 120, the outer flank of tooth contact matching of its occlusal surface and spiral lifting wheel 120 is a wire, and the summit of nipper wheels 130 circular cones is consistent with the center of the contact surface of spiral lifting wheel external tooth 122.

Trapped orbit 130 is arranged between the saddle 150 of elevator, promptly is fixed between the vertical bracing frame 151 of saddle 150, and position is fixed with nipper wheels 140 with interlock wheel shaft 141 in the middle of it.

Shown in Figure 1, because of the external tooth 122 of spiral lifting wheel 120 is spiral forms, the nipper wheels 140 of Pei Heing is a truncated cone with it, is arranged on the middle part of trapped orbit 130, and the conial vertex of nipper wheels 140 is consistent with the spiral center-point of spiral lifting wheel external tooth 122.

Nipper wheels is in the interlock rotation process like this, and because of occlusal surface right and wrong level, it bears the possibility that weight has dispersion, and the dispersion of above-mentioned power can promote its rotation, makes that the resistance of startup was less when this propelling unit stopped to restart after the lifting.

Again as shown in Figure 2, trapped orbit 130 has a plurality of, is horizontally set on equably up and down along saddle 150 between the vertical bracing frame 151 of saddle.

In another kind of possible implementation, above-mentioned spiral lifting wheel 120 also can be fixed on the bottom of lift car 180, its with the captive joint mode of car 180 can adopt with said fixing in the identical mode of elevator car roof, the setting of other corresponding nipper wheels 140, driving device and trapped orbit 130 is also consistent with above-mentioned description.

Spiral lifting wheel 120 can be provided with one, both sides or four sides and nipper wheels 140 interlocks that are distributed on the above-mentioned car both sides trapped orbit 130 from lift car 180 tops, this set can increase considerably the weight of spiral lifting wheel 120, unless suitable intensity and enough light metal are arranged, generally speaking, can adopt two or three spiral lifting wheels 120, each separately and its for nipper wheels 140 interlocks, certainly this has produced the synchronized operation problem between the different spiral lifting wheels again, in actual the manufacturing, reasonable a kind of mode is to adopt two spiral lifting wheels 120, as shown in Figure 1.Adopt between the spiral lifting wheel 120 chain or similarly mode connect, for example three gear-driven modes are so that the synchronized operation of spiral lifting wheel, employing shown in Figure 1 be three gear-driven modes.

When out of service, the wheel shaft 121 that only needs to drive brake rod 161 locking spiral lifting wheels 120 with hydraulic brake 160 gets final product.As shown in Figure 1.

Figure 3 shows that the frame mode of three spiral lifting wheels.This embodiment includes spiral lifting wheel 220, nipper wheels 240, driving device (270,271), and spiral lifting wheel 220 lays respectively at rear portion and two ends, its structure and the basically identical shown in Figure 1 at car 280 tops.The synchronized operation problem of three spiral lifting wheels 220 can adopt the gear of three cover interlocks to solve, and is engaged between described three sleeve gears, and takes turns run-in synchronism with spiral lifting; Fairly simple mode is that the chain 271 that directly drives with motor 270 is fixed in the wheel shaft 221 that drives the running of spiral lifting wheel, chain 271 is between spiral lifting wheel 220 and car 280, when spiral lifting wheel 220 rises or descends, described chain 271 also synchronizes them running, work in coordination, make three spiral liftings take turns 220 synchronized operations, as shown in Figure 3.

Equally, the upper end of each spiral lifting wheel 220 all is fixed with the position-limited rack 210 in order to constraint spiral lifting wheel nipper wheels so that it can closely cooperate in shown in Figure 3 in lifting, and the other end of position-limited rack rolls by ball 211 and is stuck in the vertical bracing frame 251 of saddle 250.

Generally speaking, the bottom edge of spiral lifting wheel external tooth 222 and horizon are the angle less than 30 degree, during actual the manufacturing, as shown in Figure 6, can adopt the bottom surface that spiral lifting is taken turns external tooth 222 to cut away a part along horizon, cut-out is only in spiral lifting wheel 220 and the excision of nipper wheels 240 contact surfaces, only otherwise the supporting role that influences above-mentioned spiral lifting wheel external tooth 220 gets final product, simultaneously, the frustum of a cone hypotenuse of nipper wheels 240 contact surfaces must overlap with the contact surface that spiral lifting is taken turns external tooth 222, and nipper wheels 240 conial vertex are consistent with the center of the contact surface that the excision back forms, must guarantee that promptly the two contact intersection has identical linear velocity when rotating, just can reach lifting effect successfully, as shown in Figure 6.

Trapped orbit 230 has a plurality of, is arranged on equably up and down along saddle 250 between the vertical bracing frame 251 of saddle 250, and adopts consistent angle of inclination crustal inclination to be arranged between the saddle 250, as shown in Figure 4 with the spiral angle of the external tooth 222 of spiral lifting wheel.Trapped orbit 230 supports nipper wheels 240 from the two ends of nipper wheels 240 by nipper wheels wheel shaft 241, to increase the support strength to nipper wheels 240.

Again as shown in Figure 5, for an independent trapped orbit 230, a plurality of nipper wheels 240 can be set, trapped orbit 240 adopts above-mentioned being obliquely installed, its bevelled angle is identical with the angle of inclination of spiral lifting wheel external tooth 222, and trapped orbit 230 also is and the identical circular shape of spiral lifting wheel external tooth 222 helix lines, perhaps linearity, take turns 220 correspondingly with spiral lifting, it can ideally be cooperated with the spiral lifting wheel by interlock wheel shaft 241 fixing nipper wheels 240.

Certainly, also can adopt a plurality of nipper wheels for horizontally disposed trapped orbit, take similar mode shown in Figure 1, difference is the necessary corresponding spiral lifting wheel of each nipper wheels of the same side, the spiral lifting of these homonymies wheel is all retrained by same position-limited rack, and the restriction ratio that is subjected to space, car the same side mode preferably is that the spiral lifting wheel that the same side of car is provided with can not be above two.

The another kind of mode that can realize is that trapped orbit 330 vertically is arranged on 350 of saddles, shown in Fig. 7,8, simultaneously, in order to strengthen the support of saddle to trapped orbit 330, trapped orbit 330 one side fixed pedestals also stretch out nipper wheels 340, then be fixed in passive cross bar 352 supports on the bracing frame 351 on the other hand, cross bar 352 preferably is supported on the central authorities of trapped orbit 330 or is provided with the position of nipper wheels, and trapped orbit 330 fixing nipper wheels 340 horizontal axis stretch out to car 380.

Among Fig. 7, other each several part mechanism, spiral lifting wheel 320, position-limited rack 310, ball 311, nipper wheels 340, hydraulic brake 360, brake rod 361 and driving device (370,371) are all with shown in Figure 1 consistent, so change the label prefix " 1 " among Fig. 1 into " 3 " when indicating, the form of different is trapped orbit changes.

From Fig. 8, can demonstrate the extension and the fixed form of trapped orbit 330 clearly, vertical bracing frame 351 extends parallel of it and saddle 350 through whole saddle 350, and are fixed in bracing frame 351 by a plurality of cross bars 352.Trapped orbit 330 is taken turns 320 direction support and is stretched out nipper wheels 340 to spiral lifting by nipper wheels wheel shaft 341.

Similarly trapped orbit also can be arranged in the jacking system with certain angle of inclination, the also corresponding tilt setting with it of spiral lifting wheel, only in a side setting of corresponding trapped orbit, cooperate with nipper wheels, for safety performance and the stability that increases lifting, two spiral lifting wheels can be set in the same side, and other device is done corresponding change and is got final product.

When single spiral lifting is taken turns lifting, can adopt the outer rotor screw motor with its designs simplification, promptly the shell of outer rotor screw motor is a gear, cooperate with above-mentioned nipper wheels, the gear that motor directly drives shell rotates, and motor is fixed on the car, and cooperate with nipper wheels, move up and down.Nipper wheels can be made the form that only is positioned at car one side, and opposite side then is provided with and the cooresponding track of said gear, and external tooth and nipper wheels only get final product in a side interlock.

Claims (10)

1, a kind of spiral propeller is characterized in that it comprises the spiral lifting wheel, takes turns the nipper wheels of interlock and the trapped orbit that supports nipper wheels with spiral lifting.Wherein:
Spiral lifting wheel is fixed on car top for having the runner of spiral external tooth, drive car and move up and down, and with the nipper wheels interlock;
Nipper wheels can be along the truncated cone runner of axial rotation of self, vertically evenly is fixed on the appropriate location of trapped orbit along saddle, and cooperates with the spiral lifting wheel; The outer flank of tooth contact matching of its occlusal surface and spiral lifting wheel is a wire;
Trapped orbit is arranged between the saddle of elevator, promptly is fixed between the vertical bracing frame of saddle, and appropriate location is set with nipper wheels on it.
2,, it is characterized in that the spiral lifting wheel can be fixed on the bottom of lift car according to the described spiral propeller of claim 1.
3,, it is characterized in that the spiral lifting wheel is provided with one at least according to the described spiral propeller of claim 1.
4, according to the described spiral propeller of claim 1, it is characterized in that to adopt two, three or four spiral lifting wheels, be evenly distributed on every side of car, each spiral lifting wheel nipper wheels interlock cooresponding with it separately can increase simultaneously the driving device that makes the synchronized operation of a plurality of spiral lifting wheel.
5,, it is characterized in that the external tooth of spiral lifting wheel has two at least according to the described spiral propeller of claim 1.
6, according to the described spiral propeller of claim 1, the upper end that it is characterized in that each spiral lifting wheel all is fixed with the position-limited rack of taking turns the nipper wheels so that it can closely cooperate in order to the constraint spiral lifting in lifting, and the other end of position-limited rack rolls by ball and is stuck in the vertical bracing frame of saddle
7,, it is characterized in that the frustum of a cone hypotenuse of nipper wheels contact surface must overlap with the contact surface that spiral lifting is taken turns external tooth, and the nipper wheels conial vertex is consistent with the center of spiral lifting wheel external tooth contact surface according to the described spiral propeller of claim 1.
8, according to the described spiral propeller of claim 1, it is a plurality of to it is characterized in that trapped orbit has, be arranged on equably up and down along saddle between the vertical bracing frame of saddle, and adopt consistent angle of inclination crustal inclination to be arranged between the saddle with the spiral angle of the external tooth of spiral lifting wheel.
9, according to the described spiral propeller of claim 8, it is characterized in that independent trapped orbit, a plurality of nipper wheels can be set, trapped orbit adopts above-mentioned being obliquely installed, its bevelled angle is identical with the angle of inclination of spiral lifting wheel external tooth, trapped orbit also is and the identical circular shape of the spiral lifting outer Tooth spiral of wheel, and is corresponding with the spiral lifting wheel.
10, according to the described spiral propeller of claim 1, when it is characterized in that single spiral lifting is taken turns lifting, can adopt the outer rotor screw motor with its designs simplification, promptly the shell of outer rotor screw motor is a gear, cooperate with above-mentioned nipper wheels, the gear that motor directly drives shell rotates.
CNB021040362A 2001-03-07 2002-03-06 Spiral propeller CN1179875C (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN01107629 2001-03-07
CN01107629.1 2001-03-07
CNB021040362A CN1179875C (en) 2001-03-07 2002-03-06 Spiral propeller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB021040362A CN1179875C (en) 2001-03-07 2002-03-06 Spiral propeller

Publications (2)

Publication Number Publication Date
CN1396106A true CN1396106A (en) 2003-02-12
CN1179875C CN1179875C (en) 2004-12-15

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Family Applications (1)

Application Number Title Priority Date Filing Date
CNB021040362A CN1179875C (en) 2001-03-07 2002-03-06 Spiral propeller

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CN (1) CN1179875C (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008141508A1 (en) * 2007-05-18 2008-11-27 Mingjin Chen A rotary elevator
CN103209919A (en) * 2010-08-06 2013-07-17 科尔伊埃莱瓦托株式会社 Worm gear-type driving unit, and elevator and elevator system using worm gear-type driving unit
WO2014194846A1 (en) * 2013-06-06 2014-12-11 Jin Xukai Embedded safety elevator
CN104743422A (en) * 2015-04-15 2015-07-01 黄民英 Spiral guide rail planet carrier rolling wheel type elevator ascending and descending driving device
CN105936459A (en) * 2016-06-23 2016-09-14 袁望画 Elevator

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008141508A1 (en) * 2007-05-18 2008-11-27 Mingjin Chen A rotary elevator
CN103209919A (en) * 2010-08-06 2013-07-17 科尔伊埃莱瓦托株式会社 Worm gear-type driving unit, and elevator and elevator system using worm gear-type driving unit
CN103209919B (en) * 2010-08-06 2016-06-15 科尔伊埃莱瓦托株式会社 A kind of lowering or hoisting gear and elevator device
WO2014194846A1 (en) * 2013-06-06 2014-12-11 Jin Xukai Embedded safety elevator
CN104743422A (en) * 2015-04-15 2015-07-01 黄民英 Spiral guide rail planet carrier rolling wheel type elevator ascending and descending driving device
CN105936459A (en) * 2016-06-23 2016-09-14 袁望画 Elevator

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