EP2474499B1 - Chain hoisting device with safe descending stroke - Google Patents

Chain hoisting device with safe descending stroke Download PDF

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Publication number
EP2474499B1
EP2474499B1 EP10811112.1A EP10811112A EP2474499B1 EP 2474499 B1 EP2474499 B1 EP 2474499B1 EP 10811112 A EP10811112 A EP 10811112A EP 2474499 B1 EP2474499 B1 EP 2474499B1
Authority
EP
European Patent Office
Prior art keywords
rod
chain
hinged
wheel
lifting body
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP10811112.1A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2474499A4 (en
EP2474499A1 (en
Inventor
Jianhua Zhu
Haohua Wang
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ningbo Bangda Intelligent Parking System Co Ltd
Original Assignee
Ningbo Bangda Intelligent Parking System Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ningbo Bangda Intelligent Parking System Co Ltd filed Critical Ningbo Bangda Intelligent Parking System Co Ltd
Publication of EP2474499A1 publication Critical patent/EP2474499A1/en
Publication of EP2474499A4 publication Critical patent/EP2474499A4/en
Application granted granted Critical
Publication of EP2474499B1 publication Critical patent/EP2474499B1/en
Not-in-force legal-status Critical Current
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/02—Driving gear
    • B66D1/14—Power transmissions between power sources and drums or barrels
    • B66D1/20—Chain, belt, or friction drives, e.g. incorporating sheaves of fixed or variable ratio
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/02—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms suspended from ropes, cables, or chains or screws and movable along pillars
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/28—Other constructional details
    • B66D1/40—Control devices
    • B66D1/48—Control devices automatic
    • B66D1/50—Control devices automatic for maintaining predetermined rope, cable, or chain tension, e.g. in ropes or cables for towing craft, in chains for anchors; Warping or mooring winch-cable tension control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/54—Safety gear
    • B66D1/56—Adaptations of limit switches
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/28—Constructional details, e.g. end stops, pivoting supporting members, sliding runners adjustable to load dimensions

Definitions

  • the present invention relates to a lifter, in particular, to a kind of chain lifter with safe descending stroke.
  • the existing lifter achieves the ascending or descending of the bearing body by the usual use of the chain transmission, the belt transmission, the gear transmission or the hydraulic cylinder extension and etc.
  • the chain transmission can work reliably under harsh conditions such as high temperature, oil or acid and accordingly behaves with very high adaptability owing to the ability to transmit movements and forces under the condition that the distance between the center of two shafts is long, which is one of the most widely used movable parts in the mechanical handling and lifting system, for example, the lifting device of stereo garage, the lifter of logistics equipment and the small elevator for serving diner, these devices are all equipped with the chain transmission mechanism.
  • the lifting driving device comprises a system box that can move up and down along two lifting guiding rails, a group of main driving engine mounted in the middle of the system box, a first transmission chain group, a second transmission chain group and a pressure tension sprocket device which all driven by the main driving engine; the whole lifting driving device is directly provided on the bottom of a lifting body; the first transmission chain group and the second transmission are respectively engaged on and the main shaft of the main driving engine respectively through a first chain and a second chain; the first chain and the second chain are engaged on the main shaft in reverse direction, which leads to the forming of equal reverse force of the first chain and the second chain on the main shaft, according the main shaft load of the main driving engine can be substantially eliminated, so that the service life of the main driving engine will be prolonged.
  • the chain transmission group in this patent can be directly provided in the system box, it makes the lifting device can be provided on the bottom of the lifting body through the system box, so as to substantially save space and reduce cost, and the use of the chain transmission can reduce the load of the main shaft of the main driving engine, so as to prolong the service life.
  • Patent Number is ZL200820300554.3
  • a tensioning and centering device of the driven sprocket of the lifter discloses a tensioning and centering device of the driven sprocket of the lifter.
  • the lower sprocket group is mounted on the lower sprocket group framework
  • the slip connection is provided between the lower sprocket group and the stand column
  • a tension adjustment screw is provided between the base on the bottom of the stand column and the frame of the lower sprocket group
  • the top of the tension adjustment screw is provided with a tension nut
  • the joint between the main transmission shaft and the cantilever sprocket of the lower sprocket group and the frame of the lower sprocket group is provided with a centering device.
  • the tensioning device in this patent can only be achieved by manual adjustment, which has the disadvantage that the looseness of the loose edge of the chain can not be accurately obtained, it means that an accurate judgment for the descending limit position of the lifting mechanism is required. Yet, as the running environment and motor performance are usually different, and the triggering time of the limit switch varies, it is hard to know the accurate descending limit position. If the looseness of the chain after adjustment is too small, then the chain scission will occur when the motor continues to rotate; if the looseness of the chain after adjustment is still too large, then the vibration and even chain-disengaging will occur during the running process. Therefore, the tension device of the up stated patent still cannot well solve the problem of unsteady descending caused by the chain loosening, so that the safety of the equipment during the running process still cannot be effectively guaranteed.
  • a chain lifter with safe descending stroke comprising:
  • the elastic resetting mechanism includes a spring seat, a frame and a spring, the spring seat is in conversed U-shape, a positioning sleeve is provided on the top of the main body of the spring seat for the spring to surround, a guiding column is inserted in the positioning sleeve which can slide up and down relatively to the positioning sleeve, the upper portion of the guiding column is fixed with the frame, the two side walls of the main body of the spring seat are respectively provided with a lengthways guiding hole, and the bottom ends of the two side walls are respectively provided with a first hinging holes; the first hinge point and the second hinge point are both disposed on the two side walls of the main body of the spring seat, and journals of the two ends of the first pin are respectively rested in the corresponding first hinging hole, the two ends of the second pin are respectively disposed through the corresponding lengthways guiding hole and the second pin can slide lengthways along the length
  • the frame is designed to be conversed U-shaped, the bottom ends of the two side walls of the frame are respectively provided with a second hinging hole, journals of the two ends of the second pin are respectively rested in the corresponding second hinging holes;
  • the upper portion of the guiding column has threads outside, the top of the frame has a through hole for the upper portion of the guiding column to go through, and the top of the guiding column which is above the top of the frame is threaded connected with a first nut, the portion of the guiding column which is below the top of the frame is threaded connected with a second nut, the first nut and the second nut make the upper portion of the guiding column be limited in the through hole of the frame.
  • the first safe switch can be an electro-optical switch, or a reed ripe, or a Hall switch or other existing common used trigger switch.
  • the first safe switch is a micro switch
  • the first safe switch is a micro switch
  • the second rocking rod includes a main portion which is parallel to the lifting body, a L-shaped bending portion located above the main portion and bending toward the lifting body, and a second fixing shaft which is vertically disposed on the vertical wall of the L-shaped bending portion
  • the bottom of the main portion is the first end of the second rocking rod which is hinged on the lifting body through a fourth pin
  • the top of the main portion is provided with a first triggering block which can press the first safe switch.
  • the second safe switch can be an electro-optical switch, or a reed ripe, or a Hall switch or other existing common used trigger switch.
  • the second safe switch is a micro switch
  • the top of the first rocking rod is the first end of the first rocking rod which is hinged on the lifting body through a third pin
  • a first fixing shaft is disposed at the bottom of the first rocking rod
  • the bottom of the first rocking rod is provided with a second triggering block which can press the second safe switch.
  • the lifting body is provided with a linkage mechanism which can reset automatically, and the looseness of the loose edge of the chain can be automatic adjusted by collaborating with the rocking rod, the linkage crank and the adjusting wheel;
  • the linkage mechanism in the present invention is a planar four-bar linkage with the double herring bone structure, which is small in size and can be installed in a tiny space accordingly; all hinge points of the linkage mechanism can move freely without fixed points, therefore, the stroke can be amplified with non-constant rate, i.e.
  • the motor inertia can be transmitted to the sprocket, and the rocking rod can be driven to ensure the linkage between the pulling rod and the linkage crank, in the meanwhile, the stroke of the elastic resetting mechanism can be changed through the linkage mechanism, and the wrap angle of the chain on the wheel/sprocket can be changed, so as to prevent from operation fault and accidents caused by the over-loosening or over-tightening of the chain;
  • the present invention can achieve the automatic adjustment to the chain looseness through the various size of the motor inertia force, so as to avoid the defect of improper adjustment caused by inaccurate prediction of manual adjustment, the adjustment mode of the present invention is more flexible, reliable and accurate, and such adjustment mode can achieve better adjustment effect, so as to ensure the lifter to be provided with enough descending stroke when the lifter touches the ground, and the loose edge of the chain to be kept within proper range all along.
  • the present invention is also provided with a double protection switch which has a lower limit and a lower check, so that the motor can stop reliably when the lifter touches the ground, it can increase the operation reliability and safety of the lifter.
  • FIG.1 ?? FIG.9 show a chain lifter in accordance with an exemplary embodiment of the present invention.
  • the chain lifter comprises a lifting body (1) which can move up and down along a pair of vertical guiding grooves (9) locating at the two sides of the lifting body (1), a motor (2) which is fixed on the middle of the lifting body (1), and a driving sprocket group which is disposed in the lifting body (1).
  • the driving sprocket group is composed of a first driving sprocket group and a second driving sprocket group both symmetrically disposed, as shown in Fig. 1 and Fig. 7 .
  • the detail is as below:
  • the first driving sprocket group includes a first driving wheel (31), two first traction wheels (32) and a first tension wheel (33) which are all disposed in a same plane.
  • the first driving wheel (31) is coaxial with the output shaft of the motor, the two first traction wheels (32) are respectively disposed at two sides of the output shaft of the motor.
  • the first tension wheel (33) is disposed between the first traction wheel (32) which is disposed at the left side of the output shaft of the motor and the first driving wheel (31).
  • the middle part of the first chain (34) is engaged from the first end of the first traction wheel (32) orderly with the top edge of the first traction wheel (32) at the left side, and with the first tension wheel (33) and the first driving wheel (31) in S-shape, and with the bottom of the first traction wheel (32) at the right side, finally reaching out from the bottom of the first traction wheel (32).
  • the second driving sprocket group includes a second driving wheel (41), two second traction wheels (42) and a second tension wheel (43) which are all disposed in a same plane.
  • the second driving wheel (41) is mounted on the output shaft of the motor, two second traction wheels (42) are respectively disposed at two sides of the output shaft of the motor and are respectively coaxial with the corresponding first traction wheel (32).
  • the second tension wheel (43) is disposed between the second traction wheel (42) disposed at the right side of the output shaft of the motor and the second driving wheel (41).
  • a planar linkage mechanism (5) is disposed between the first tension wheel (33) and the second tension wheel (43) (see Fig.1 , Fig.2 and Fig.5 ), which includes a first swing rod (51), a second swing rod (52), a first connecting rod (53) and a second connecting rod (54) all disposed in a same plane.
  • a first end of the fist swing rod (51) is hinged with a first end of the second swing rod (52) through a first pin (101) which forms a first hinge point (a), a first end of the second connecting rod (54) is hinged at the middle of the second swing rod (52), a second end of the first connecting rod (53) is hinged with a second end of the second connecting rod (54) through a second pin (102) which forms a second hinge point (b).
  • the linkage mechanism (5) also includes an elastic resetting mechanism which makes the first hinge point (a) and the second hinge point (b) keep apart with each other all along.
  • the linkage mechanism (5) is composed of a spring seat (55), a frame (56) and a helical compression spring (57).
  • the main part of the spring seat (55) is in conversed U-shape, a positioning sleeve (551) is provided on the top of the main body of the spring seat (55) for the spring (57) to surround, a guiding column (554) is inserted in the positioning sleeve (551) which can slide up and down relatively to the positioning sleeve (551), the upper portion of the guiding column (554) is fixed with the frame (56), the two side walls of the main body of the spring seat (55) are respectively provided with a lengthways guiding hole (552), and the bottom ends of the two side walls are respectively provided with a first hinging holes (553); the first hinge point (a) and the second hinge point (b) are both disposed on the two side walls of the main body of the spring seat (55), and journals of the two ends of the first pin (101) are respectively rested in the corresponding first hinging hole (553), the two ends of the second pin (102) are respectively disposed through the corresponding lengthways guiding hole (552) and the second
  • the frame (56) is disposed above the main body of the spring seat (55) and designed to be conversed U-shaped, the bottom ends of the two side walls of the frame (56) are respectively provided with a second hinging holes (561), the frame (56) can keep linkage with the first connecting rod (53) and the second connecting rod (54) through the second pin (102), the spring (57) is limited between the frame (56) and the main body of the spring seat (55).
  • the top of the frame (56) has a through hole (562) for the upper portion of the guiding column (554) to go through, and the top of the guiding column (554) which is above the top of the frame (56) is threaded connected with a first nut (563), the portion of the guiding column (554) which is below the top of the frame (56) is threaded connected with a second nut (564), the first nut (563) and the second nut (564) make the upper portion of the guiding column (554) be limited in the through hole (562) of the frame (56), so that the guiding column (554) can connect with the frame(56).
  • a rocking rod crank mechanism is provided at the two sides of a linkage mechanism (5), which can deliver the expansion of the linkage mechanism (5) to the adjusting wheel which can change the size of wrap angle of the chain.
  • the rocking rod crank mechanism includes a first rocking rod (61), a second rocking rod (62), the first pulling rod (71), the second pulling rod (72), the first linkage crank (81) and the second linkage crank (82), as shown in Fig.1 , Fig.2 , Fig.3 and Fig.4 .
  • the first rocking rod (61) is hinged on a second end (511) of the first swing rod (51) through a pin (613) fixed at the bottom of the first rocking rod (61), the upper portion of the first rocking rod (61) as the first end of the first rocking rod is hinged on the lifting body (1) through a third pin (103), the bottom of the first rocking rod (61) as the second end of the first rocking rod is provided with a first fixing shaft (611) and disposed at the bottom of the first rocking rod (61), the first tension wheel (33) surrounds the first fixing shaft (611).
  • a first adjusting wheel (91) is fixed on the first linkage crank (81), which is for adjusting the wrap angle of the loose edge of the first chain (34) on the first traction wheel (32).
  • the middle of the first linkage crank (81) is hinged on the lifting body (1), the second end of the first linkage crank (81) is hinged on the first end of the first pulling rod (71), the second end of the first pulling rod (71) is hinged on the first rocking rod (61) through the pin (614) at the bottom of the first rocking rod (61).
  • the second rocking rod (62) includes a main portion (621) which is parallel to the lifting body (1), a L-shaped bending portion (622) located above the main portion (621) and bending toward the lifting body (1), and a second fixing shaft (623) which is vertically disposed on the vertical wall of the L-shaped bending portion (622), on which the second tension wheel (43) surrounds, and the second end (521) of the second swing rod (52) is hinged on the second rocking rod (62) through the pin (625) fixed above the second rocking rod (62).
  • a second adjusting wheel (92) is fixed on the second linkage crank (82), which is for adjusting the wrap angle of the loose edge of the second chain (44) on the second traction wheel (42).
  • the middle of the second linkage crank (82) is hinged on the lifting body (1), the second end of the second linkage crank (82) is hinged on the first end of the second pulling rod (72), the second end of the second pulling rod (72) is hinged on the second rocking rod (62).
  • the lifting body (1) is fixed with two micro switches, i.e. a first safe switch (105) as a limit switch and a second safe switch (106) as a check switch (the position of these two safe switches can be replaceable).
  • the first safe switch (105) is located corresponding to the position of the second rocking rod (62).
  • the second rocking rod (62) can trigger the first safe switch (105) to control the motor (2) to stop, the top of the main portion of the second rocking rod (62) is provided with a first triggering block (624) which can press the first safe switch (105).
  • the second safe switch (106) is located corresponding to the position of the first rocking rod (61), when the lifting body (1) touches the ground and the first safe switch (105) fails to work, the first rocking rod (61) can trigger the second safe switch (106) to control the motor (2) to stop, and the bottom of the first rocking rod (61) is provided with a second triggering block (612) which can press the second safe switch (106).
  • the motor (2) When the lifter ascends, the motor (2) respectively drives the first driving wheel (31) and the second driving wheel (41) to rotate clockwise; when the lifter descends, the motor (2) respectively drives the first driving wheel (31) and the second driving wheel (41) to rotate anticlockwise. Furthermore, during the normal ascending and descending of the lifter, the chains on the first driving sprocket group and the second driving sprocket group are respectively engaged to be N-shaped.
  • the first end of the first chain (34) moves round the bottom of the first traction wheel (32) and is fixed on the top of the vertical guiding grooves (9). Due to the gravity, whether the lifter ascends or descends, the chain at this side is in tight state.
  • the second end of the first chain (34) moves round the top edge of the first traction wheel (32) and is fixed on the bottom of the vertical guiding grooves (9), hanging on the first tension wheel (33) and the first driving wheel (31), whether the lifter ascends or descends, the chain at this side is in loose state.
  • the second chain (44) moves round the bottom of the second traction wheel (42) and is fixed on the top of the vertical guiding grooves (9) with the chain at this side in tight state
  • the second chain (44) moves round the top edge of the second traction wheel (42) and is fixed on the bottom of the vertical guiding grooves (9) with the chain at this side in loose state.
  • the first rocking rod (61) and the second rocking rod (62) keep partial to right, as shown in Fig. 7 , the first tension wheel (33) surrounding the first rocking rod (61) is for tensioning the first chain (34), and the second tension wheel (43) surrounding the second rocking rod (62) is for tensioning the second chain (44).
  • the motor (2) continues to drive the first chain (34) and the second chain (44) to rotate anticlockwise owing to inertia, the loose edge side of the originally first and second chain rotates to be in tight state, the tight edge side of the originally first and second chain rotates to be in loose state, i.e. the chain fixed on a first side of the vertical guiding grooves (9) is in loose state.
  • the first rocking rod (61) and the second rocking rod (62) rotate anticlockwise under the pulling force of the first chain (34) and the second chain (44), wherein the first triggering block (624) fixed on the second rocking rod (61) conflicts with the first safe switch (105) first, and the first safe switch (105) sends brake instructions to the brake module of the motor (2) through PLC after the contact closes to control the motor to stop.
  • the second chain (44) continues to pull the second rocking rod (62) to rotate anticlockwise before the motor stops, as shown in Fig. 8 , when the second rocking rod (62) rotates anticlockwise, the second linkage crank (82) rotates the same way under the action of the second pulling rod (72), and drives the second adjusting wheel (92) to swing up, and then changes the wrap angle on the second traction wheel (42) at the right side of the second chain (44), so as to reduce the looseness of the loose edge side of the second chain (44).
  • the first chain (34) forces the first rocking rod (61) to rotate anticlockwise, pass the first pulling rod (71) and cause the first linkage crank (81) to rotate clockwise, thus driving the first adjusting wheel (91) to swing up, and then changing the wrap angle on the first traction wheel (32) at the left side of the first chain (34), so as to reduce the looseness of the loose edge side of the first chain (34).
  • the lifter is usually provided with a double switch protection device, i.e. if the first safe switch (105) fails to send the brake signal owing to some reason, the first rocking rod (61) and the second rocking rod (62) continue to rotate anticlockwise under the traction force of the chain, as shown in Fig.
  • the loose edge on the first chain (34) and the second chain (44) is provided with more looseness; after the second triggering block (612) fixed on the first rocking rod (61) touches the second safe switch (106), the contact of the second safe switch (106) closes, and the second safe switch (106) sends fault signal to the motor through PLC to control the motor to stop, before the motor completely stops running, the first adjusting wheel (91) and the second adjusting wheel (92) continue to swing up, which further reduces the wrap angle of the first traction wheel (32) at the left side of the first chain (34) and the wrap angle of the second traction wheel (42) at the right side of the second chain (44), and ensures the loose edge of the first chain (34) and the second chain (44) to be kept at 20 ⁇ 25mm (the chain pitch in the embodiment is 31.75mm).
  • the spring (57) in the embodiment is provided with the working stroke of around 30.4mm from the initial pre-tightening state to the completely compressed state, 78mm of descending stroke can be gained through the conversion of the chain operation length.
  • the motor drives the first chain and the second chain to rotate clockwise, the chain at the loose side of the first chain and the second chain gradually tightens, and the chain at the tight side of the first chain and the second chain gradually loosens.
  • the first rocking rod (61) and the second rocking rod (62) rotate clockwise under the restoring force of the spring (57), and drive the first linkage crank (81) and the second linkage crank (82) to rotate clockwise, the first adjusting wheel (91) and the second adjusting wheel (92) to swing down; as the chain is still provided with certain looseness, the lifting body (1) of the lifter is still in touching the ground state, when the first chain (34) and the second chain (44) fixed on the top side of the vertical guiding grooves (9) is completely tightened, the lifting body (1) begins to ascend away from the ground, at which moment the linkage mechanism is recovered to the original state (i.e. the spring is in pre-tightening state, as shown in Fig.
  • the chain lifer of the present invention automatically changes the wrap angle size for the loose edge of the chain on the chain wheel through the linkage mechanism and the rocking rod crank linkage mechanism, and further changes the looseness of the loose edge of the chain and makes the looseness to be kept within a certain range, it can prevent the chain from being too loose to lead to chain-disengaging or chain-sliding, which makes the lifting body on the lifter have enough descending stroke during running to the bottom of the vertical guiding grooves, and overcomes the defect of inability to be adjusted appropriately for the tight and loose edge of the chain caused by the lag of the motor brake, so as to ensure the work stability and reliability of the lifter, the service life can be increased accordingly and the work efficiency of the lifter being improved, in the same time, the chain wear and the maintenance cost being reduced.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Structural Engineering (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Types And Forms Of Lifts (AREA)
  • Transmission Devices (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
EP10811112.1A 2009-08-31 2010-08-27 Chain hoisting device with safe descending stroke Not-in-force EP2474499B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN2009101023457A CN101704482B (zh) 2009-08-31 2009-08-31 一种具有安全下降行程的链条提升装置
PCT/CN2010/001297 WO2011022946A1 (zh) 2009-08-31 2010-08-27 一种具有安全下降行程的链条提升装置

Publications (3)

Publication Number Publication Date
EP2474499A1 EP2474499A1 (en) 2012-07-11
EP2474499A4 EP2474499A4 (en) 2013-05-15
EP2474499B1 true EP2474499B1 (en) 2013-11-06

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP10811112.1A Not-in-force EP2474499B1 (en) 2009-08-31 2010-08-27 Chain hoisting device with safe descending stroke

Country Status (5)

Country Link
EP (1) EP2474499B1 (ja)
JP (1) JP5341256B2 (ja)
KR (1) KR101288818B1 (ja)
CN (1) CN101704482B (ja)
WO (1) WO2011022946A1 (ja)

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CN101704482B (zh) * 2009-08-31 2011-08-17 朱建华 一种具有安全下降行程的链条提升装置
CN103569820B (zh) * 2013-11-20 2015-08-12 葛家蔚 一种制动器
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CN108147312B (zh) * 2018-01-25 2023-06-09 郑州三金石油设备制造有限公司 专用移载小车自动升降装置
CN112811342B (zh) * 2021-02-05 2022-11-25 合肥工业大学 一种电动葫芦行程限位装置
CN113479561B (zh) * 2021-07-15 2023-03-31 荣智工企智能技术(昆山)有限公司 一种链条输送装置、输送模组及输送线
CN114105021B (zh) * 2021-12-03 2023-11-14 郑州科步科技有限公司 一种卷扬机
FR3133953B1 (fr) 2022-03-25 2024-04-12 Psa Automobiles Sa Procede de recharge d’une batterie d’un dispositif

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53161476U (ja) * 1977-05-24 1978-12-18
US5040638A (en) * 1990-07-31 1991-08-20 Adaptive Engineering Ltd. Wheelchair lift mechanism
JPH07301001A (ja) * 1994-04-28 1995-11-14 Konoike Constr Ltd 垂直揚重装置
JPH08208154A (ja) * 1995-02-03 1996-08-13 Toshiba Corp エレベータ
JPH09124278A (ja) * 1995-10-30 1997-05-13 Sankin Kk 立体駐車装置におけるチェーン巻き上げモータのオーバーラン検知装置
CN2242877Y (zh) * 1996-03-26 1996-12-18 鞍山钢铁公司 采用链传动的悬臂梁伸缩系统的悬臂吊
CN2349185Y (zh) * 1998-12-29 1999-11-17 双鸭山东方工业公司 双侧顶推式出口拉引机
JP4155670B2 (ja) 1999-07-01 2008-09-24 石川島運搬機械株式会社 コンテナクレーンの巻上装置
DE10111311C2 (de) * 2001-03-09 2003-04-10 Eisenmann Kg Maschbau Antriebseinrichtung für eine Hubstation
US6619623B1 (en) * 2002-05-10 2003-09-16 Jacob Kobelt Chain pulling device
CN2820819Y (zh) 2005-07-19 2006-09-27 黄柏森 升降驱动装置
JP3117343U (ja) * 2005-10-04 2006-01-05 柏森 ▲黄▼ 昇降駆動装置
CN101214900A (zh) * 2008-01-10 2008-07-09 无锡市锡湖液压气动机械有限公司 斜巷挡车栏双向起重器
CN100577551C (zh) * 2008-02-04 2010-01-06 北京星光影视设备科技股份有限公司 迷你型水平吊杆
CN201193154Y (zh) 2008-04-14 2009-02-11 贵阳普天物流技术股份有限公司 一种提升机从动链轮的张紧及对中装置
CN201487152U (zh) * 2009-08-31 2010-05-26 朱建华 一种连杆机构
CN101704482B (zh) * 2009-08-31 2011-08-17 朱建华 一种具有安全下降行程的链条提升装置
CN201553572U (zh) * 2009-08-31 2010-08-18 朱建华 一种具有安全下降行程的链条提升装置
CN101672355B (zh) * 2009-08-31 2012-06-27 朱建华 一种连杆机构

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CN101704482B (zh) 2011-08-17
KR20120047946A (ko) 2012-05-14
JP2013502358A (ja) 2013-01-24
EP2474499A4 (en) 2013-05-15
CN101704482A (zh) 2010-05-12
JP5341256B2 (ja) 2013-11-13
EP2474499A1 (en) 2012-07-11
WO2011022946A1 (zh) 2011-03-03
KR101288818B1 (ko) 2013-07-23

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