CN101445209A - Wheel crane mobile counterweight - Google Patents

Wheel crane mobile counterweight Download PDF

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Publication number
CN101445209A
CN101445209A CNA2008101976792A CN200810197679A CN101445209A CN 101445209 A CN101445209 A CN 101445209A CN A2008101976792 A CNA2008101976792 A CN A2008101976792A CN 200810197679 A CN200810197679 A CN 200810197679A CN 101445209 A CN101445209 A CN 101445209A
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CN
China
Prior art keywords
counterweight
arm
winch
wheel crane
suspension arm
Prior art date
Application number
CNA2008101976792A
Other languages
Chinese (zh)
Inventor
艾凯
Original Assignee
艾凯
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 艾凯 filed Critical 艾凯
Priority to CNA2008101976792A priority Critical patent/CN101445209A/en
Publication of CN101445209A publication Critical patent/CN101445209A/en

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Abstract

Wheel crane mobile counterweight relates to a wheel crane. In order to improve the structure form of the wheel crane counterweight, reduce the self-weight of a suspension arm, increase lift height, increase amplitude and hoisting, in the invention, the counterweight moves backwards following a counterweight framework along with a retractable counterweight framework and a fixed counterweight framework; the horizontal distance from the gravity force of the counterweight to a turret is increased; the stresses of the front and back supporting points of the turret reaches a relative balance by increasing the external load of the turret; and the steel wire ropes of a main suspension arm hoisting machine and a movable suspension arm hoisting machine are respectively connected with the ends of the suspension arm; due to the switch and the steel wire rope static locking device of the hoisting machine that linked with the counterweight and the suspension arm, the counterweight, the suspension arm and the turret keep a triangular structure, thus preventing the counterweight framework and the suspension arm from being bent and improving the overall stability of the crane; by applying a retractable cab, a foldable suspension arm support and a counterweight fixed device, the safety and flexibility of the crane is not effected by the movable counterweight.

Description

Wheel crane mobile counterweight
Technical field
The present invention relates to wheel crane, specifically be meant a kind of mobile counterweight device that is used for wheel crane.
Technical background
Wheel crane is widely used with good manoevreability.But the constraint of conditions such as wheel crane is conducted oneself with dignity, arm slenderness ratio makes length, luffing and the lift heavy of its arm all restricted.
Summary of the invention
The objective of the invention is for overcoming the deficiency of above-mentioned wheel crane, improve wheel crane counter weight construction form, the horizontal throw of lengthening counterweight and turntable, connect counterweight and arm end by the winch steel rope, make counterweight, arm and turntable keep triangular structure, prevent counter-balanced carriage and arm bending, improve the hoisting crane resistance to overturning, reduce the arm deadweight, increase lifting altitude, increase amplitude and lift heavy.
For achieving the above object, the present invention adopts following technical scheme:
Wheel crane mobile counterweight is made up of counterweight, turntable, counter-balanced carriage, extendable weight frame, fixed weight frame, main arm winch, movable arm winch, contraction operator's compartment, folded boom arm support and counterweight anchor fitting.Counterweight is fixed on the counter-balanced carriage, counterweight moves along extendable weight frame and fixed weight frame backward with counter-balanced carriage during work, counterweight is to the horizontal throw lengthening of turntable, increased the external load of turntable, make the stressed relative equilibrium of turntable front and back supporting-point, main arm winch is connected arm arm end with movable arm winch steel rope, counterweight, arm and turntable have formed triangular structure, be subjected to pull of steel wire, avoid counterweight to move and caused the counter-balanced carriage bending, prevented that arm from causing flexural deformation because of lift heavy, improved the resistance to overturning of hoisting crane.
Fixed weight frame root is fixed on the turntable, with the same longitudinal axis of arm, by a joint or a multi-joint telescoping counter-balanced carriage sliding block joint counter-balanced carriage, the horizontal throw of counterweight and turntable can be changed according to the needs of lift heavy and luffing thereupon, guarantee the good crossing ability of turntable, and counterweight and lift heavy keep the stability of hoisting crane in same axis.
Counter-balanced carriage carrying counterweight, main arm winch and movable arm winch, in order to avoid the obstacle of operator's compartment and arm support in maximum radius of turn, counter-balanced carriage single-piece lowest part is higher than contraction operator's compartment and folded boom arm support and other mobile units.
Main arm winch steel rope connects main arm arm end, movable arm winch steel rope freely is installed in the movable arm arm of arbitrary joint end according to the needs of lift heavy, make counterweight under any operating mode, arm and turntable can keep triangular structure, and hoisting crane can adopt when big assembly pulley to connect because of steel rope is stressed.
The winch switch of main arm winch and movable arm winch setting and counterweight and arm interlock in control system, steel rope can be moved when moving with arm in counterweight can loosen or tighten up steel rope synchronously, the static Locking Device of steel rope makes steel rope be in stationary state when motionless, guarantees the stable of counterweight, arm and turntable triangular structure.
Shrink operator's compartment angle adjustable bearing circle and seat folding back are set, the operator's compartment first half can successfully be dropped to along guide rail on every side cover the operator's compartment lower part, with the folded boom arm support together, make turntable in maximum radius of turn, avoid the obstacle of operator's compartment and arm support, and make the counterweight center of gravity lower, guarantee crane stability.
The counterweight anchor fitting is installed in the underframe back segment, under counterweight and turntable return state, counterweight is fixed on the underframe, can keep counterweight stable when hoisting crane is travelled, and has improved drive safety.Beneficial effect of the present invention:
1, improves crane stability
Because counterweight moves backward, counterweight gravity has increased the external load of turntable to the horizontal throw lengthening of turntable, makes the stressed relative equilibrium of turntable front and back supporting-point, and because pull of steel wire is arranged, can increase the weight of counterweight.
2, reduce the arm deadweight, increase lifting altitude, increase amplitude and lift heavy
Because counterweight, arm and turntable have formed triangular structure, arm can comparatively safely be worked reliably, under equal constraint condition, prevent arm flexural deformation, strengthen resistance to overturning.
3, do not influence crossing ability and safety
Because counterweight is under pull of steel wire, make not flexural deformation of counter-balanced carriage, energy free control miles of relative movement is shunk operator's compartment and folded boom arm support, the assurance counterweight can be avoided obstacle in maximum radius of turn, and the counterweight anchor fitting can be securely fixed on the underframe counterweight when return.
Description of drawings
Accompanying drawing is a scheme drawing of the present invention, among the figure
The main arm winch of 1---counterweight 6---
The movable arm winch of 2---turntables 7---
3---counter-balanced carriages 8---shrink operator's compartment
4---extendable weight frame 9---folded boom arm support
5---fixed weight frame 10---counterweight anchor fitting
The specific embodiment
Below in conjunction with the drawings and specific embodiments the present invention is further described.
As shown in the figure: wheel crane arrives the work place, put down supporting leg after, can operate according to the following steps
1, falls contraction operator's compartment 8, unclamp counterweight anchor fitting 10.
2, the movable arm that uses according to need is at its arm end installation activity arm winch 7 steel ropes.
3, rise arm, put down folded boom arm support 9.
4,, counterweight 1 is moved to suitable position with counter-balanced carriage 3 along extendable weight frame 4 and fixed weight frame 5 according to the requirement of lift heavy, arm height and amplitude and the obstacle in the radius of turn.
5, main arm winch 6 and movable arm winch 7 moving and the hoisting of arm, luffing in the operation process with counterweight, tighten up synchronously or loosen steel rope, the static Locking Device of steel rope, guarantee to be in stationary state all the time when steel rope is motionless, make counterweight 1, arm and turntable 2 keep the triangle rock-steady structure.
6, after hours, counterweight 1 and turntable 2 returns are opened folded boom arm support 9, put down arm, and counterweight anchor fitting 10 is fixed on counterweight 1 on the underframe, recover to shrink operator's compartment 8, pack up supporting leg.

Claims (7)

1, wheel crane mobile counterweight, form by counterweight (1), turntable (2), counter-balanced carriage (3), extendable weight frame (4), fixed weight frame (5), main arm winch (6), movable arm winch (7), contraction operator's compartment (8), folded boom arm support (9) and counterweight anchor fitting (10), it is characterized in that: counterweight (1) moves along extendable weight frame (4) fixed weight frame (5) with counter-balanced carriage (3), main arm winch (6) is connected arm arm end with movable arm winch (7) steel rope, makes counterweight (1), arm and turntable (2) keep triangular structure.
2, according to the described wheel crane mobile counterweight of claim 1, it is characterized in that: described fixed weight frame (5) root is fixed on the turntable (2), and with the same longitudinal axis of arm, it is by at least one joint expansion bracket (4) sliding block joint counter-balanced carriage.
3, according to the described wheel crane mobile counterweight of claim 1, it is characterized in that: described counter-balanced carriage (3) carrying counterweight (1), main arm winch (6) and movable arm winch (7), its lowest part is higher than contraction operator's compartment (8), folded boom arm support (9) and other mobile units.
4, according to the described wheel crane mobile counterweight of claim 1, it is characterized in that: described main arm winch (6) steel rope connects main arm arm end, movable arm winch (7) steel rope freely is installed in the movable arm arm of arbitrary joint end, stressedly adopts assembly pulley to connect when big.
5, according to the described wheel crane mobile counterweight of claim 1, it is characterized in that: the winch switch of described main arm winch (6) and movable arm winch (7) setting and counterweight and arm interlock and the static Locking Device of steel rope.
6, according to the described wheel crane mobile counterweight of claim 1, it is characterized in that: described contraction operator's compartment (8) is provided with angle adjustable bearing circle and seat folding back, and constriction device drops to guide rail around the operator's compartment first half edge and covers the operator's compartment lower part.
7, according to the described wheel crane mobile counterweight of claim 1, it is characterized in that: described counterweight anchor fitting (10) is installed in the underframe back segment, under counterweight (1) and turntable (2) return state counterweight (1) is fixed on the underframe.
CNA2008101976792A 2008-11-18 2008-11-18 Wheel crane mobile counterweight CN101445209A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNA2008101976792A CN101445209A (en) 2008-11-18 2008-11-18 Wheel crane mobile counterweight

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNA2008101976792A CN101445209A (en) 2008-11-18 2008-11-18 Wheel crane mobile counterweight

Publications (1)

Publication Number Publication Date
CN101445209A true CN101445209A (en) 2009-06-03

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CNA2008101976792A CN101445209A (en) 2008-11-18 2008-11-18 Wheel crane mobile counterweight

Country Status (1)

Country Link
CN (1) CN101445209A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101792090A (en) * 2010-04-21 2010-08-04 天津港第二港埠有限公司 Novel lower chamber device
EP2281771A1 (en) * 2009-08-06 2011-02-09 Manitowoc Crane Companies, LLC Lift crane with movable counterweight
CN102806554A (en) * 2012-06-14 2012-12-05 中联重科股份有限公司 Positioning method for counterweight positioning pin of crane and marking tool
US8511489B2 (en) 2006-10-27 2013-08-20 Manitowoc Cranes, Llc Mobile lift crane with variable position counterweight
CN105253791A (en) * 2015-11-03 2016-01-20 北汽福田汽车股份有限公司 Crane
CN105314546A (en) * 2015-12-07 2016-02-10 徐州重型机械有限公司 Hoisting machinery
US10179722B2 (en) 2014-01-27 2019-01-15 Manitowoc Crane Companies, Llc Lift crane with improved movable counterweight
US10183848B2 (en) 2014-01-27 2019-01-22 Manitowoc Crane Companies, Llc Height adjustment mechanism for an auxiliary member on a crane

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8985353B2 (en) 2006-10-27 2015-03-24 Manitowoc Crane Companies, Llc Mobile lift crane with variable position counterweight
US10336589B2 (en) 2006-10-27 2019-07-02 Manitowoc Crane Companies, Llc Mobile lift crane with variable position counterweight
US8511489B2 (en) 2006-10-27 2013-08-20 Manitowoc Cranes, Llc Mobile lift crane with variable position counterweight
US8827092B2 (en) 2006-10-27 2014-09-09 Manitowoc Crane Companies, Llc Mobile lift crane with variable position counterweight
EP2281771A1 (en) * 2009-08-06 2011-02-09 Manitowoc Crane Companies, LLC Lift crane with movable counterweight
CN102020210A (en) * 2009-08-06 2011-04-20 马尼托瓦克起重机有限责任公司 Lift crane with moveable counter weight
CN106144924A (en) * 2009-08-06 2016-11-23 马尼托瓦克起重机有限责任公司 There is the lift crane of moveable counter weight
CN106144924B (en) * 2009-08-06 2019-03-26 马尼托瓦克起重机有限责任公司 Lift crane with moveable counter weight
US10457530B2 (en) 2009-08-06 2019-10-29 Manitowoc Cranes, Llc Lift crane with moveable counterweight
US9278834B2 (en) 2009-08-06 2016-03-08 Manitowoc Crane Group, LLC Lift crane with moveable counterweight
CN101792090A (en) * 2010-04-21 2010-08-04 天津港第二港埠有限公司 Novel lower chamber device
CN102806554A (en) * 2012-06-14 2012-12-05 中联重科股份有限公司 Positioning method for counterweight positioning pin of crane and marking tool
US10179722B2 (en) 2014-01-27 2019-01-15 Manitowoc Crane Companies, Llc Lift crane with improved movable counterweight
US10183848B2 (en) 2014-01-27 2019-01-22 Manitowoc Crane Companies, Llc Height adjustment mechanism for an auxiliary member on a crane
CN105253791B (en) * 2015-11-03 2017-10-27 北汽福田汽车股份有限公司 A kind of crane
CN105253791A (en) * 2015-11-03 2016-01-20 北汽福田汽车股份有限公司 Crane
CN105314546A (en) * 2015-12-07 2016-02-10 徐州重型机械有限公司 Hoisting machinery

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Open date: 20090603

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