CN206529220U - Draw raising gantry crane - Google Patents

Draw raising gantry crane Download PDF

Info

Publication number
CN206529220U
CN206529220U CN201720194767.1U CN201720194767U CN206529220U CN 206529220 U CN206529220 U CN 206529220U CN 201720194767 U CN201720194767 U CN 201720194767U CN 206529220 U CN206529220 U CN 206529220U
Authority
CN
China
Prior art keywords
pulley
door frame
wire rope
fixed pulley
suspender
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.)
Expired - Fee Related
Application number
CN201720194767.1U
Other languages
Chinese (zh)
Inventor
李海波
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.)
China Waterborne Transport Research Institute
Original Assignee
China Waterborne Transport Research Institute
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 China Waterborne Transport Research Institute filed Critical China Waterborne Transport Research Institute
Priority to CN201720194767.1U priority Critical patent/CN206529220U/en
Application granted granted Critical
Publication of CN206529220U publication Critical patent/CN206529220U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Conveying And Assembling Of Building Elements In Situ (AREA)

Abstract

Raising gantry crane is drawn this application discloses one kind, slided on the crossbeam of door frame and dolly is set, the underhung of dolly has suspender, door frame bottom is provided with two sets of wire rope roll winding apparatus, two sets of wire rope roll winding apparatus are arranged side by side along the fore-and-aft direction of door frame, door frame right upper portion is provided with suspender flat turn mechanism, it is slidable in the vertical direction being provided with balance weight on the right side of door frame, often set wire rope roll winding apparatus includes the first steel wire rope, second steel wire rope and reel, one end of first steel wire rope is wound on reel, the other end sequentially bypasses the first fixed pulley, first pulley group and second pulley group, and be fixedly connected with suspender flat turn mechanism;One end of second steel wire rope is wound in the other end on reel and sequentially bypasses the second fixed pulley, the 3rd assembly pulley and the 4th assembly pulley, is fixedly connected with door frame.Balance weight declines release gravitional force, and the energy consumption of the crane can be substantially reduced by the energy storage and energy release of balance weight.

Description

Draw raising gantry crane
Technical field
Present application relates generally to gantry crane technical field, more particularly to the traction raising gate-type applied to port and pier Crane.
Background technology
In recent years, with the expansion of China's Foreign Trade, Container Transport industry fast development, while having driven container dress Unload the technological progress and fast development of equipment.Portal crane is compared with the various cranes that other industry is used, operating efficiency Height, energy consumption is also universal very high, therefore realizes that the energy-conservation of container handling device and emission reduction meaning are very great.With energy prices Lasting lifting and energy-saving and emission-reduction policy go deep into, the lightness and economy of container handling device will turn into one it is new Development trend.
Traditional tyred container door type crane and rail-mounted gantry container crane are all container hargours Important handling facilities, occupy leading position in modern port Container Yard, and the current whole world there are about the various rule of more than 7000 platforms The tyred container door type crane of lattice accounts for the 90% of storage yard container handling facilities, in recent years rail mounted packaging in operation Application of the case gantry crane in stockyard is also more and more extensive.They all have high operating efficiency, space availability ratio height, productivity ratio High the characteristics of.But traditional tyred container door type crane and the lifting mechanism (steel of rail-mounted gantry container crane Cord coiler device) and wheeling mechanism be all disposed within trolley frame so that the weight of dolly is big (up to 25 tons), so as to increase The weight of complete machine is added, this kind equipment has the shortcomings of wheel load is big, cost is high, routine use maintenance cost high, energy resource consumption is big.
Container Transport to along the Changjiang river and inland river, it is interior develop during, various regions occur in that a large amount of medium and small collection Container berth stockyard and terminal.For medium and small pier storage yard, if indiscriminately imitating coastal professional Container Yard completely Technology pattern, will cause enterprise investment increase, economic benefit to decline.Many medium and small Container Yards face traditional wheel Tire formula gantry container crane and rail-mounted gantry container crane, are all existed " cannot afford, Guan Buqi, can not afford " Problem, and general crane gear is difficult to complete container handling, pile, the job requirement carried.Therefore, in the urgent need to one The economical container handling device that all kinds of harbours are particularly medium and small container pier storage yard and terminal can be adapted to by planting.
Utility model content
In view of drawbacks described above of the prior art or deficiency, expect to provide a kind of traction raising gantry crane to solve Not the problem of existing wheeled crane is not suitable for middle-size and small-size container pier storage yard, terminal.
The application, which provides to slide on a kind of traction raising gantry crane, including door frame, the crossbeam of the door frame, sets small Car, the underhung of the dolly has suspender, and the door frame left lower is provided with two sets of wire rope roll winding apparatus, and two sets described Fore-and-aft direction of the wire rope roll winding apparatus along the door frame is arranged side by side, and the door frame right upper portion is provided with suspender flat turn machine It is slidable in the vertical direction being provided with balance weight on the right side of structure, the door frame, often covering the wire rope roll winding apparatus includes first Steel wire rope, the second steel wire rope and the reel for being arranged on the door frame left lower, one end of first steel wire rope are wound in institute State on reel, the other end sequentially bypasses first between the first fixed pulley, the dolly and the suspender on the left of the door frame Second pulley group between assembly pulley and the door frame and the balance weight, and be fixedly connected with the suspender flat turn mechanism;Institute State the second steel wire rope one end be wound in the other end on the reel sequentially bypass the second fixed pulley on the left of the door frame, it is described The 4th assembly pulley between the 3rd assembly pulley and the door frame and the balance weight between dolly and the suspender, and with it is described Door frame is fixedly connected, and the first pulley group is located at the different corner location of the suspender with the second pulley group.
The traction raising gantry crane that the application is provided, by setting wire rope roll to install around in the unilateral of door frame bottom Put, and connect dolly and suspender to control the walking of dolly and the landing of suspender by corresponding assembly pulley, without small Suspender is set on car plays descending mechanism (i.e. wire rope roll winding apparatus), is arranged so as to not only reduce dolly weight, and reduction The center of gravity of complete machine, realizes equipment lightness so that complete machine has from heavy and light, reduced investment, the low feature of energy consumption.In addition, also By assembly pulley there is provided counterweight structure, during suspender decline, pulls balance weight to rise storage gravitional force, in suspender In handling shipping process, balance weight declines release gravitional force, can be dropped significantly by the energy storage and energy release of balance weight The energy consumption of the low crane, therefore reduce use cost.
Brief description of the drawings
By reading the detailed description made to non-limiting example made with reference to the following drawings, the application's is other Feature, objects and advantages will become more apparent upon:
The front view for the traction raising gantry crane that Fig. 1 provides for the utility model embodiment;
The wirerope-winding schematic diagram for the traction raising gantry crane that Fig. 2 provides for the utility model embodiment.
Embodiment
The application is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched The specific embodiment stated is used only for explaining relevant utility model, rather than the restriction to the utility model.Further need exist for explanation , for the ease of description, the part related to utility model is illustrate only in accompanying drawing.
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase Mutually combination.Describe the application in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
It refer to shown in Fig. 1, Fig. 2, the traction raising gantry crane that the utility model embodiment is provided, including door frame 3, Slided on the crossbeam of door frame 3 and dolly 6 is set, the underhung of dolly 6 has suspender 5, and the lower left side of door frame 3 sets two sets of steel wire ropes Coiler device, fore-and-aft direction of two sets of wire rope roll winding apparatus along door frame is arranged side by side (in this description with the steel in the front of door frame 3 Illustrated exemplified by cord coiler device, the same front side of wire rope roll winding apparatus at rear, here not to the wire rope roll of rear side around The structure of device is repeated), the right upper portion of door frame 3 is provided with suspender flat turn mechanism, and the right side of door frame 3 is slidable in the vertical direction Balance weight 7 is provided with, often covering wire rope roll winding apparatus includes the first steel wire rope 9, the second steel wire rope 8 and be arranged on the left side of door frame 3 The reel 2 of side lower part, one end of the first steel wire rope 9 is wound on reel 2, and what the other end sequentially bypassed the left side of door frame 3 first determines The second pulley group between first pulley group and door frame 3 and balance weight 7 between pulley 10, dolly 6 and suspender 5, and and suspender Flat turn mechanism is fixedly connected;One end of second steel wire rope 8 is wound in second that the other end on reel 2 sequentially bypasses the left side of door frame 3 The 4th assembly pulley between the 3rd assembly pulley and door frame 3 and the balance weight 7 between fixed pulley, dolly 6 and suspender 5, and with Door frame 3 is fixedly connected, and first pulley group is located at the different corner location of suspender 5 with second pulley group, such as, but not limited to, hangs Tool 5 is rectangle, with Fig. 2 visual angle, in the counterclockwise direction, is counted from the corner of the lower left of suspender 5, the corner of suspender 5 is successively A corner, No. two corners, No. three corners and No. four corners are named as, first pulley group is arranged at a corner location, the Two, which change wheel group, is arranged at No. two corner locations, namely at the different corner location of suspender 5.
Left, right, front and rear as referred to herein be so that just to Fig. 1 visual angle, as reference, the left side of drawing is a left side, and right side is the right side, Before being just to Fig. 1 direction, after the direction for just going deep into paper to Fig. 1 is.
Above-mentioned reel 2 is the reel in front of crane, is double crosslinking drum in the present embodiment, reel that can also be with rear Merge using a tetrad reel, you can to share the pattern of a tetrad reel using two sets of wire rope roll winding apparatus, by one Individual tetrad reel draws 4 steel wire ropes respectively.
The traction raising gantry crane that the application is provided, sets wire rope roll to install around by the left side in the bottom of door frame 3 Put, and connect dolly 6 and suspender 5 to control the walking of dolly 6 and the landing of suspender 5 by corresponding assembly pulley, without Suspender 5 is set on dolly 6 plays descending mechanism (i.e. wire rope roll winding apparatus), is arranged so as to not only reduce dolly weight, and And the center of gravity of complete machine is reduced, realize equipment lightness so that complete machine has from heavy and light, reduced investment, the low feature of energy consumption.Separately Outside, by four independent steel wire ropes, and every steel wire rope is all put down by the assembly pulley of one group of carry out, three deflectings with corresponding Weight structure connect, three deflectings described here refer to steel wire rope pass through assembly pulley when its around to carried out three times change, its Concrete structure see below description.All used cooperatively using every steel wire rope by assembly pulley with balance weight, make balance weight to support Disappear the weight power consumption of suspender 5, reduce crane hang carry during the energy that is consumed of suspender, can directly reduce descending mechanism negative Carry and power consumption, realize energy-conservation.During the decline of suspender 5, pull balance weight 7 to rise storage gravitional force, hung in suspender 5 Transport in shipping process, balance weight 7 declines release gravitional force, can be dropped significantly by the energy storage and energy release of balance weight 7 The energy consumption of the low crane, therefore reduce use cost.
In actual use, the lower section of door frame 3 can install rubber-tyred walking mechanism or rail mounted walking mechanism, the present embodiment In, rubber-tyred walking mechanism is used, the rubber-tyred walking mechanism includes active wheel unit and driven pulley unit, driving wheel list Member includes horizontally disposed driving wheel connecting cross beam, and driving wheel connecting cross beam is fixedly connected on the bottom of door frame 3, driving wheel connection Being provided with crossbeam has the connecting shaft being vertically arranged, connecting shaft and master at the top of driving wheel connecting bracket, driving wheel connecting bracket Driving wheel connecting cross beam is rotatably assorted, and is rotated on active wheel support and driving electricity is additionally provided with connection driving wheel 1, active wheel support Machine, motor drives driving wheel to rotate by V belt translation or chain-drive mechanism.
Further, the slide rail extended vertically is provided with door frame 3, specifically, the right side of door frame 3 is provided with slide rail, The side of balance weight 7 is provided with pulley, and pulley is rolled with slide rail to be coordinated, by setting pulley and slide rail, on the one hand can be to flat The motion of weight 7 is limited, and is prevented balance weight 7 is rocked from bringing potential safety hazard to crane, is on the other hand reduced balance weight 7 The friction of up and down motion, reduce further energy consumption.
Further, it is provided with two slide rails being parallel to each other, the relative side of two slide rails and is provided with vertically on door frame 3 Chute, 7 liang of opposite sides of balance weight are provided with pulley, namely the front and rear sides of balance weight 7 are provided with pulley, and pulley can To set one, it can also set multiple along the vertical direction, pulley is installed in chute.Such as, but not limited to, slide rail level side To section can rectangular side C fonts, the opening direction of two C font slide rails is oppositely arranged, and pulley is located at C font openings Place.Using the slide rail of the C fonts on rectangular side, on the one hand it is easy to processing, production cost can be reduced, on the other hand can be improved The reliability and safety that wheel coordinates with slide rail is changed, the swing that limiting balance weighs 7 is carried out in the lateral direction.
Further, first pulley group include be rotatablely installed in the 3rd fixed pulley 11 on dolly 6, the 4th fixed pulley 12 and It is rotatablely installed in the first movable pulley 13 on suspender 5, the axis of the 3rd fixed pulley 11, the 4th fixed pulley 12 and the first movable pulley 13 It is parallel to each other, the first steel wire rope 9 sequentially bypasses the 3rd fixed pulley 11, the first movable pulley 13 and the 4th fixed pulley 12.
Further, second pulley group include be rotatablely installed in the 5th fixed pulley 18 on door frame 3, the 6th fixed pulley 19 and It is rotatablely installed in the second movable pulley 20 in balance weight 7, the 5th fixed pulley 18, the axis of the 6th fixed pulley 19 are mutually perpendicular to, the The axis of five fixed pulleys 18 and the second movable pulley 20 is parallel to each other, and the first steel wire rope 9 sequentially bypasses the 5th fixed pulley 18, second and moved The fixed pulley 19 of pulley 20 and the 6th.
Further, the 3rd assembly pulley include be rotatablely installed in the 7th fixed pulley 15 on dolly 6, the 8th fixed pulley 16 and It is rotatablely installed in the 3rd movable pulley 14 on suspender 5, the axis of the 7th fixed pulley 15, the 8th fixed pulley 16 and the 3rd movable pulley 14 It is parallel to each other, the second steel wire rope 8 sequentially bypasses the 7th fixed pulley 15, the 3rd movable pulley 14 and the 8th fixed pulley 16.
Further, the 4th assembly pulley includes being rotatablely installed in the 9th fixed pulley 17 on door frame 3 and being rotatablely installed in flat The 4th movable pulley 21 on weight 7, one end of the second steel wire rope 8 sequentially bypasses the 9th fixed pulley 17 and the 4th movable pulley 21, and It is fixedly connected with door frame 3.
Further, the flat turn mechanism of suspender 5 includes linear actuator 22, and linear actuator 22 is hinged with door frame 3, and straight line drives The drive end of dynamic device 22 is hinged with drive rod 24, and the one end of drive rod 24 away from linear actuator 22 is hinged with the door frame 3, drives The middle part of lever 24 is hinged with first connecting rod 23, and one end of the first steel wire rope 9 is connected with first connecting rod 23, first connecting rod 23 and door Second connecting rod is hinged between frame 3, second connecting rod is parallel with drive rod 24, the length direction of first connecting rod 23 is along before door frame 3 Rear is to setting.Wherein, door frame 3, first connecting rod 23, second connecting rod and drive rod 24, which are hinged, constitutes parallelogram levers machine Structure, linear actuator 22 controls first connecting rod 23 to move by drive rod 24, to adjust the relatively long of two first steel wire ropes 9 Degree, to drive suspender 5 is planar corresponding to rotate, with simple in construction, the advantage of convenient and reliable operation.
Above description focuses on that the arrangement and structure of wire rope roll winding apparatus in front of crane is described in detail, and joins See Fig. 2, the wire rope roll winding apparatus at crane rear and the steel wire rope in front and cable drum apparatus structure are substantially the same, area It is not that one end of the first steel wire rope of the wire rope roll winding apparatus positioned at front is connected to the front end of first connecting rod 23, (in order to It is easy to distinguish front and rear sides wire rope roll winding apparatus, the first, second steel wire rope correspondence in rear side wire rope roll winding apparatus is fixed Justice be the three, the 4th steel wire ropes) then one end of the 3rd steel wire rope of the wire rope roll winding apparatus at rear be connected to first connecting rod 23 Rear end.Therefore, the often set wire rope roll winding apparatus of the present embodiment sets the reel of 1 duplex pattern, connects two steel wire ropes. Door frame bottom is provided with two sets of wire rope roll winding apparatus altogether in the embodiment of this description, totally two sets of double crosslinking drums, four steel wires Rope.
Above description is only the preferred embodiment of the application and the explanation to institute's application technology principle.People in the art Member should be appreciated that utility model scope involved in the application, however it is not limited to the particular combination of above-mentioned technical characteristic Technical scheme, while should also cover in the case where not departing from the inventive concept, by above-mentioned technical characteristic or its equivalent feature Other technical schemes formed by being combined.Such as features described above has class with (but not limited to) disclosed herein The technical scheme like formed by the technical characteristic of function carries out replacement mutually.

Claims (8)

1. slided on one kind traction raising gantry crane, including door frame, the crossbeam of the door frame and dolly is set, the dolly Underhung has suspender, and the door frame bottom is provided with two sets of wire rope roll winding apparatus, two sets of wire rope roll winding apparatus edges The fore-and-aft direction of the door frame is arranged side by side, and the door frame right upper portion is provided with suspender flat turn mechanism, it is characterised in that described Be slidable in the vertical direction being provided with balance weight on the right side of door frame, often cover the wire rope roll winding apparatus include the first steel wire rope, Second steel wire rope and the reel for being arranged on the door frame left lower, one end of first steel wire rope are wound in the reel On, the other end sequentially bypasses the first pulley group between the first fixed pulley, the dolly and the suspender on the left of the door frame And the second pulley group between the door frame and the balance weight, and be fixedly connected with the suspender flat turn mechanism;Described second One end of steel wire rope be wound in the other end on the reel sequentially bypass the second fixed pulley on the left of the door frame, the dolly with The 4th assembly pulley between the 3rd assembly pulley and the door frame and the balance weight between the suspender, and it is solid with the door frame Fixed connection, the first pulley group is located at the different corner location of the suspender with the second pulley group.
2. traction raising gantry crane according to claim 1, it is characterised in that be provided with and prolong vertically on the door frame The slide rail stretched, the side of the balance weight is provided with pulley, and the pulley is rolled with the slide rail to be coordinated.
3. traction raising gantry crane according to claim 2, it is characterised in that two phases are provided with the door frame Vertical chute, the opposite side of the balance weight two are provided with the mutual parallel slide rail, the relative side of slide rail described in two The pulley is provided with, the pulley is installed in the chute.
4. the traction raising gantry crane according to claim any one of 1-3, it is characterised in that the first pulley group Including being rotatablely installed in the 3rd fixed pulley on the dolly, the 4th fixed pulley and being rotatablely installed dynamic in first on the suspender Pulley, the axis of the 3rd fixed pulley, the 4th fixed pulley and first movable pulley is parallel to each other, first steel wire Rope sequentially bypasses the 3rd fixed pulley, the first movable pulley and the 4th fixed pulley.
5. the traction raising gantry crane according to claim any one of 1-3, it is characterised in that the second pulley group Including being rotatablely installed in the 5th fixed pulley on the door frame, the 6th fixed pulley and being rotatablely installed in second in the balance weight Movable pulley, the 5th fixed pulley, the axis of the 6th fixed pulley are mutually perpendicular to, and the 5th fixed pulley is moved with described second The axis of pulley is parallel to each other, and it is fixed sliding that first steel wire rope sequentially bypasses the 5th fixed pulley, the second movable pulley and the 6th Wheel.
6. the traction raising gantry crane according to claim any one of 1-3, it is characterised in that the 3rd assembly pulley Including being rotatablely installed in the 7th fixed pulley on the dolly, the 8th fixed pulley and being rotatablely installed dynamic in the 3rd on the suspender Pulley, the axis of the 7th fixed pulley, the 8th fixed pulley and the 3rd movable pulley is parallel to each other, second steel wire Rope sequentially bypasses the 7th fixed pulley, the 3rd movable pulley and the 8th fixed pulley.
7. the traction raising gantry crane according to claim any one of 1-3, it is characterised in that the 4th assembly pulley It is described including being rotatablely installed in the 9th fixed pulley on the door frame and being rotatablely installed in the 4th movable pulley in the balance weight One end of second steel wire rope sequentially bypasses the 9th fixed pulley and the 4th movable pulley, and is fixedly connected with the door frame.
8. the traction raising gantry crane according to claim any one of 1-3, it is characterised in that the suspender flat turn machine Structure includes linear actuator, and the linear actuator is hinged with the door frame, and the drive end of the linear actuator is hinged with drive Lever, the one end of the drive rod away from the linear actuator is hinged with the door frame, is hinged with the middle part of the drive rod First connecting rod, one end of first steel wire rope is connected with the first connecting rod, is cut with scissors between the first connecting rod and the door frame Second connecting rod is connected to, the second connecting rod is parallel with the drive rod, the length direction of the first connecting rod is along the door frame Fore-and-aft direction is set.
CN201720194767.1U 2017-03-01 2017-03-01 Draw raising gantry crane Expired - Fee Related CN206529220U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720194767.1U CN206529220U (en) 2017-03-01 2017-03-01 Draw raising gantry crane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720194767.1U CN206529220U (en) 2017-03-01 2017-03-01 Draw raising gantry crane

Publications (1)

Publication Number Publication Date
CN206529220U true CN206529220U (en) 2017-09-29

Family

ID=59917949

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201720194767.1U Expired - Fee Related CN206529220U (en) 2017-03-01 2017-03-01 Draw raising gantry crane

Country Status (1)

Country Link
CN (1) CN206529220U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106865412A (en) * 2017-03-01 2017-06-20 交通运输部水运科学研究所 Traction raising gantry crane
CN118183517A (en) * 2024-05-17 2024-06-14 河南省矿山起重机有限公司 Pendulum-reducing adjusting device of intelligent crane

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106865412A (en) * 2017-03-01 2017-06-20 交通运输部水运科学研究所 Traction raising gantry crane
CN118183517A (en) * 2024-05-17 2024-06-14 河南省矿山起重机有限公司 Pendulum-reducing adjusting device of intelligent crane

Similar Documents

Publication Publication Date Title
CN201932840U (en) Light semi-trailer cart-typed gantry crane
CN102616666A (en) Semi-traction dolly type light-weight portal crane
EP2962977B1 (en) Gantry crane for handling containers
KR20030012146A (en) Hoisting apparatus using counterweight
CN101323415A (en) Crossing type double trolley bridge type crane
CN103754778B (en) Counterweight balance equipment of crane
CN206645749U (en) Electric block type multi-lay winding hoist engine
CN206529220U (en) Draw raising gantry crane
CN112158714B (en) Lifting device with synchronous lifting and auxiliary turning functions
CN106865412A (en) Traction raising gantry crane
CN202481953U (en) Anti-collision tower type gantry crane
CN107161843A (en) Eight rope single actions look for case system
CN206783157U (en) Overhead explosion-proof crane with rolling screen door cut-off workshop
CN206417796U (en) A kind of construction material conveying device
CN102642770A (en) Grab bucket driving mechanism of eight-ropes grab ship unloader
CN202440246U (en) Novel flexible trolley-jib single-boom multi-purpose fixed crane
CN211895771U (en) Energy-saving crossing type shore bridge using counterweight
CN204980884U (en) Lifting mechanism
CN106240430B (en) Movable gantry type rotatable automatic counterweight vehicle-mounted self-loading and unloading equipment
CN205873697U (en) Control hoist rise to rise with differential actuating mechanism of mixture of dolly sideslip
CN210528295U (en) Multifunctional transportation device
CN211444755U (en) Counterweight energy-saving system for crossing shore bridge
CN203820294U (en) Dual-purpose lifting sling with anti-swaying revolving container and hanger
CN2623670Y (en) Bidirectional shaking proof device for crane
CN107176546A (en) Separate the overhead explosion-proof crane in workshop with rolling screen door

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20170929

Termination date: 20190301