CN204714410U - Tower crane amplitude variation rope tightening device - Google Patents

Tower crane amplitude variation rope tightening device Download PDF

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Publication number
CN204714410U
CN204714410U CN201520445969.XU CN201520445969U CN204714410U CN 204714410 U CN204714410 U CN 204714410U CN 201520445969 U CN201520445969 U CN 201520445969U CN 204714410 U CN204714410 U CN 204714410U
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CN
China
Prior art keywords
rope
connecting rod
amplitude variation
guide rail
hole
Prior art date
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Active
Application number
CN201520445969.XU
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Chinese (zh)
Inventor
贺全
李波
才冰
史勇
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.)
FUSHUN YONGMAO CONSTRUCTION MACHINERY Co Ltd
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FUSHUN YONGMAO CONSTRUCTION MACHINERY Co Ltd
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Priority to CN201520445969.XU priority Critical patent/CN204714410U/en
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Publication of CN204714410U publication Critical patent/CN204714410U/en
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Abstract

The utility model discloses a kind of tower crane amplitude variation rope tightening device, that rope tightening device support is set in tower machine equilibrium arm, frame upper has a horizontal guide rail, connecting rod for connecting variable-amplitude steel wire rope moves horizontally on guide rail, all there is fixed pulley at connecting rod two ends, the haulage cable that inner winding is drawn by manual hoist, outer end is wound around the change spoke steel rope of being drawn by luffing winch.The movement of the utility model manually steel wire rope of windlass drivening rod realizes the function of amplitude variation trolley tight rope, after utilizing the laborsaving tight rope of manual hoist, by the tensioning fixedly realizing variable amplitude rope of connecting rod, greatly reduce the labour intensity of installer, and luffing rope tightening device is arranged in equilibrium arm, in equilibrium arm, not only just can complete the work of tight rope, without the need to operation of climbing to a higher point, and improve the strained condition of amplitude variation trolley, alleviate the weight of amplitude variation trolley especially, improve tower machine lifting performance.Have that flexible operation is convenient, the advantage such as to increase work efficiency, be particularly useful for large-scale tower crane.

Description

Tower crane amplitude variation rope tightening device
Technical field
The utility model belongs to the auxiliary facilities of tower crane, is specifically related to the luffing rope tightening device of tower crane.
Background technology
The variable-amplitude steel wire rope of carriage amplitude varying formula tower crane in use for some time, effect due to pulling force is elongated and relaxes sagging, when sagging amount of deflection is excessive, amplitude variation trolley can be made to run steady and not produce impact shock if in time variable-amplitude steel wire rope could not be carried out tensioning, there is pause and transition in rhythm or melody.Therefore need often to regulate luffing rope tightening device in tower machine working process.
Common variable amplitude rope tight rope mode has automatic rope tightening and manual tight rope two kinds of modes.Automatic rope tightening is the fixed block clashed into by the amplitude variation trolley started on hoisting crane on jib, and drive rope tightening device to rotate the object realizing tight rope thus, this device not only designs complexity, and cost is higher.Manual tight rope is typically employed on amplitude variation trolley and arranges the modes such as ratchet, ratchet or tight rope screw rod by variable-amplitude steel wire rope tensioning, this mode poor stability, complex operation, easily occur because dislike trouble, dangerous and do not go to carry out tight rope operation, form potential safety hazard.Therefore, provide a kind of easy and simple to handle, structure is simple, and the high tower crane amplitude variation rope tightening device of safety is those skilled in the art's technical issues that need to address.
Summary of the invention
The purpose of this utility model is to provide a kind of tower crane amplitude variation rope tightening device, this device can overcome the deficiencies in the prior art, the efficiency of variable-amplitude steel wire rope tensioning work can be significantly improved, improve convenience and the safety of operation, and by the change of installation site, realize the lifting of tower machine load-carrying ability.
The technical solution adopted in the utility model is: tower crane amplitude variation rope tightening device is arranged in tower machine equilibrium arm, there is horizontal support, in support one end, manual hoist is installed, the support other end has horizontal guide rail, horizontal guide rail there is connecting rod, connecting rod is limited on horizontal guide rail and moves horizontally, all fixed pulley is had at connecting rod two ends, the inner fixed pulley of connecting rod is wound around the haulage cable of being drawn by manual hoist, outer end fixed pulley is wound around the change spoke steel rope of being drawn by luffing winch.
The rotation lay winding wire ropes of the utility model manually lifting drum, pulls the movement of connecting rod to realize the function of amplitude variation trolley tight rope, and has following characteristics:
A, luffing rope tightening device are arranged in equilibrium arm, in equilibrium arm, not only just can complete the work of tight rope, without the need to operation of climbing to a higher point, and improve the strained condition of amplitude variation trolley, alleviate the weight of amplitude variation trolley especially, improve tower machine lifting performance;
B, manual hoist adopt the laborsaving tight rope of 2 multiplying power, greatly reduce the labour intensity of installer;
After C, tight rope, loosen manual hoist steel rope, manual hoist is not stressed, ensure that the service life of manual hoist;
D, have that simple structure, good looking appearance, flexible operation are convenient, hommization, safe and reliable, advantages such as avoiding risky operation, increase work efficiency, be practical, is particularly useful for large-scale tower crane.
Accompanying drawing explanation
Fig. 1 is the schematic diagram that the utility model is installed on tower machine equilibrium arm;
Fig. 2 is the utility model using state schematic diagram;
Fig. 3 is structural representation of the present utility model.
Detailed description of the invention
The utility model eliminates original rope tightening device be arranged on amplitude variation trolley, according to movable pulley zoom rate labour-saving principle, equilibrium arm has been set up a fixing rope tightening device support 3, there is Connection Block one end of support 3, with bolt, manual hoist 1 is fixed on Connection Block, horizontal guide rail 4 is had at the other end of support 3, horizontal guide rail 4 is welded relatively by two channel-section steels on support 1, connecting rod 6 is made up of square tube, be through in the square hole of the horizontal guide rail 4 formed by two channel-section steels, connecting rod 6 moves horizontally on horizontal guide rail 4.There is fixed pulley at the two ends of connecting rod 6, inner fixed pulley is wound around the haulage cable 2 that manual hoist 1 is drawn, outer end fixed pulley is wound around the change spoke steel rope 8 of being drawn by tower machine luffing mechanism, haulage cable 2 one end that manual hoist 1 is drawn is fixed on support 3.Horizontal guide rail 4 has the pin-and-hole 5 of equidistant arrangement, connecting rod 6 has the pin-and-hole 7 of the equidistant arrangement corresponding with pin-and-hole 5, use bearing pin cross-under pin-and-hole 5 with pin-and-hole 7 by relative with horizontal guide rail 4 for connecting rod 6 fixing, make manual hoist 1 can be loose.Between pin-and-hole 5 adjacent on horizontal guide rail 4, the hole heart is apart from being a, and between pin-and-hole 7 adjacent on connecting rod 6, heart distance in hole is b, a=b-10mm.Can realize the fastening of variable amplitude rope to difference, not only setting range is long, and can realize fine setting, regulates combination abundant.
Manually the rotation of winch 1 reel is wound around, the haulage cable 2 that manual hoist 1 is drawn pulls the motion of connecting rod 6, thus tower machine variable-amplitude steel wire rope 8 is strained, then by fine setting, the position of stationary links 6 on horizontal guide rail 4, the fastening of tower crane amplitude variation steel rope 8 is finally realized.Subsequently by manual hoist 1 suitably playback, the haulage cable 2 on manual hoist 1 is relaxed, makes manual hoist 1 not bear the application force of tower machine variable-amplitude steel wire rope 8, ensure the service life of manual hoist 1.

Claims (3)

1. a tower crane amplitude variation rope tightening device, be arranged in tower machine equilibrium arm, it is characterized in that: it has horizontal support (3), in support (3) one end, manual hoist (1) is installed, support (3) other end has horizontal guide rail (4), horizontal guide rail (4) has connecting rod (6), connecting rod (6) is limited on horizontal guide rail (4) and moves horizontally, all fixed pulley is had at connecting rod (6) two ends, connecting rod (6) inner fixed pulley is wound around the haulage cable (2) of being drawn by manual hoist (1), outer end fixed pulley is wound around the change spoke steel rope (8) of being drawn by luffing winch.
2. tower crane amplitude variation rope tightening device according to claim 1, it is characterized in that: the pin-and-hole (5) having equidistant arrangement on horizontal guide rail (4), connecting rod (6) has the pin-and-hole (7) of the equidistant arrangement corresponding with pin-and-hole (5), uses bearing pin cross-under pin-and-hole (5) with pin-and-hole (7), connecting rod (6) is relative fixing with horizontal guide rail (4).
3. tower crane amplitude variation rope tightening device according to claim 2, is characterized in that: between the upper adjacent pin-and-hole (5) of horizontal guide rail (4), the hole heart is apart from being a, and between the upper adjacent pin-and-hole (7) of connecting rod (6), hole heart distance is b, a=b-10mm.
CN201520445969.XU 2015-06-26 2015-06-26 Tower crane amplitude variation rope tightening device Active CN204714410U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520445969.XU CN204714410U (en) 2015-06-26 2015-06-26 Tower crane amplitude variation rope tightening device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520445969.XU CN204714410U (en) 2015-06-26 2015-06-26 Tower crane amplitude variation rope tightening device

Publications (1)

Publication Number Publication Date
CN204714410U true CN204714410U (en) 2015-10-21

Family

ID=54313419

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520445969.XU Active CN204714410U (en) 2015-06-26 2015-06-26 Tower crane amplitude variation rope tightening device

Country Status (1)

Country Link
CN (1) CN204714410U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105858504A (en) * 2016-06-17 2016-08-17 郑州科润机电工程有限公司 Trailer wagon tensioning device for large-size tower crane
CN107934806A (en) * 2017-10-30 2018-04-20 北京紫竹慧建设服务股份有限公司 A kind of movable arm type tower crane aids in luffing device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105858504A (en) * 2016-06-17 2016-08-17 郑州科润机电工程有限公司 Trailer wagon tensioning device for large-size tower crane
CN107934806A (en) * 2017-10-30 2018-04-20 北京紫竹慧建设服务股份有限公司 A kind of movable arm type tower crane aids in luffing device

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