CN103708364B - There is lift system and the hoisting crane of balance weight assembly - Google Patents

There is lift system and the hoisting crane of balance weight assembly Download PDF

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Publication number
CN103708364B
CN103708364B CN201310750231.XA CN201310750231A CN103708364B CN 103708364 B CN103708364 B CN 103708364B CN 201310750231 A CN201310750231 A CN 201310750231A CN 103708364 B CN103708364 B CN 103708364B
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China
Prior art keywords
lift
counterweight
balance weight
hoisting crane
rotation arm
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CN201310750231.XA
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Chinese (zh)
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CN103708364A (en
Inventor
李强
桂海莲
杜玉龙
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太原重工股份有限公司
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Priority to CN201310750231.XA priority Critical patent/CN103708364B/en
Publication of CN103708364A publication Critical patent/CN103708364A/en
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Publication of CN103708364B publication Critical patent/CN103708364B/en

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Abstract

The invention discloses a kind of balance weight assembly and lift system thereof and hoisting crane, described balance weight assembly, for hoisting crane, described balance weight assembly comprises: counterweight pallet; Be arranged at the two assembly pouring weights at described counterweight pallet two ends; And the two groups of anti-rotation arm-ties arranged between described two assembly pouring weights, the bottom of described anti-rotation arm-tie is connected to described counterweight pallet, upwards extends perpendicular to described counterweight pallet.Present invention achieves Weighting system from dismounting, solve because of work-yard without during whipline counterweight dismounting difficulty or crane transition disassembly process in the inefficient problem of counterweight dismounting.

Description

There is lift system and the hoisting crane of balance weight assembly

Technical field

The present invention relates to elevator machinery, particularly relate to a kind of balance weight assembly for hoisting crane, a kind of balance weight assembly lift system for hoisting crane and there is the hoisting crane of above-mentioned balance weight assembly and lift system thereof.

Background technology

The economic growth of current China is in investment and drives and the important period of Urbanization Construction fast development, country's fixed asset investment and infrastructure construction scale larger.And within very long one period of future, quick growth will be kept.Therefore, crawler crane market has larger market potential.

For crawler crane, in order to strengthen the complete machine stability of hoisting crane, thus improving the performance of hoisting crane, counterweight need be installed, to balance hoisting moment at lifting thing offside.Therefore, the dismounting of counterweight, assembling property are important indicators of crawler crane, because crawler crane cannot freely be walked on highway, and the large heaviness of body, must dismantle and just can transport.Arrive work place, then when assembling, need whipline.

Prior art exists need use in whipline or counterweight lifting process easily tumbles, and elevating ram causes the problems such as leakage of oil because bearing moment of flexure.The counterweight assembly and disassembly methods that hoisting crane is traditional utilizes whipline to realize.Carry out the method for dismounting counterweight with whipline, be suitable for stationary crane or infrequently move the hoisting crane of transition.Its advantage is that structure is simple, and shortcoming is complicated operation, the easy deflection of counterweight, and hoisting cost is high, and labour intensity is large, inefficiency.And use crane, need to spend a large amount of man power and materials.

Therefore, need a kind of new balance weight assembly of exploitation and lift system, solve above-mentioned technical matters.

Summary of the invention

For problems of the prior art, the object of the present invention is to provide a kind of balance weight assembly for hoisting crane, utilize with the crawler crane solving prior art that whipline dismounting counterweight cost is high, labour intensity is large, ineffective technical matters.

For problems of the prior art, the present invention also aims to provide a kind of lift system for hoisting crane, utilize with the crawler crane solving prior art that whipline dismounting counterweight cost is high, labour intensity is large, ineffective technical matters.

Another object of the present invention is to provide a kind of hoisting crane with lift system of the present invention and balance weight assembly of the present invention.

The present invention is achieved through the following technical solutions:

A kind of balance weight assembly, for hoisting crane, described balance weight assembly comprises: counterweight pallet; Be arranged at the two assembly pouring weights at described counterweight pallet two ends; And the two groups of anti-rotation arm-ties arranged between described two assembly pouring weights, the bottom of described anti-rotation arm-tie is connected to described counterweight pallet, upwards extends perpendicular to described counterweight pallet.

A kind of lift system of balance weight assembly of the present invention, described lift system is arranged at the turntable of described hoisting crane, this lift system comprises two groups of lifting subassemblies, each lifting subassembly comprises: elevating ram, be arranged at the relative inner of the framework of described turntable, the movable end of described elevating ram upwards vertically stretches out; Equalizing bar, the mid point of described equalizing bar is connected to the movable end of described elevating ram; And two groups of chains, be connected to the two ends of described equalizing bar.

Hoisting crane of the present invention, has lift system of the present invention and balance weight assembly of the present invention.

Beneficial effect of the present invention is, the present invention compared with prior art, due to adopt oil cylinder stretch and jockey sprocket to realize Weighting system from dismounting, solve because work-yard is without the inefficient problem of counterweight dismounting in counterweight dismounting difficulty during whipline or crane transition disassembly process, the anti-rotation arm-tie that counterweight pallet connects and the equalizing bar with fan-shaped slotted hole, prevent hoisting crane in counterweight in disassembly process, because clump weight manufacture and installation error cause centre-of gravity shift or terrain slope to cause the problem of easily tumbling in counterweight lifting process, avoid accidents caused danger.

Accompanying drawing explanation

Fig. 1 is the schematic diagram of the hoisting crane of the embodiment of the present invention and balance weight assembly thereof, lift system;

Fig. 2-Fig. 4 is the three-view diagram of the balance weight assembly of the embodiment of the present invention;

Fig. 5 to Fig. 8 is that the balance weight assembly of the embodiment of the present invention promotes front lift mechanism and balance weight assembly contraposition adjustment process figure;

Fig. 9 to Figure 11 is that the balance weight assembly of the embodiment of the present invention promotes and installation process figure;

Figure 12 is the A-A cutaway view of Figure 11;

Figure 13 is that the balance weight assembly of the embodiment of the present invention installs the constitution diagram after terminating.

Detailed description of the invention

The exemplary embodiments embodying feature & benefits of the present invention will describe in detail in the following description.Be understood that the present invention can have various changes in different embodiments, it neither departs from the scope of the present invention, and explanation wherein and accompanying drawing are the use when explain in itself, and is not used to limit the present invention.

The hoisting crane of the embodiment of the present invention, has the lift system of the embodiment of the present invention and the balance weight assembly of the embodiment of the present invention; The lift system of the embodiment of the present invention can be used in hoisting crane, for promoting the balance weight assembly of the embodiment of the present invention.The hoisting crane of the embodiment of the present invention, preferably crawler crane etc., for the flow-type crawler crane of frequent mobile transition, effect is better.

Below balance weight assembly and the lift system of the embodiment of the present invention is specifically introduced.

As Figure 1-Figure 4, the balance weight assembly of the embodiment of the present invention comprises counterweight pallet 1, clump weight 2,3 and anti-rotation arm-tie 4.

Wherein, as shown in Figure 3, counterweight pallet 1 is roughly rectangular shape, and it can be divided into three rectangular areas, and as shown in Figure 2, middle region is for arranging anti-rotation arm-tie 4, and the region on both sides is then respectively for support one assembly pouring weight 2,3.It is individual or more that the clump weight quantity that every assembly pouring weight comprises can be 2-4.

As shown in Figure 2 and Figure 4, two groups of anti-rotation arm-ties 4 are set between two assembly pouring weights 2,3, often organize anti-rotation arm-tie 4 and comprise two anti-rotation arm-ties 4.The bottom of anti-rotation arm-tie 4 is fixedly connected on counterweight pallet 1, and anti-rotation arm-tie 4 upwards extends perpendicular to counterweight pallet 1.As shown in Figure 4, be connected by two bearing pins 6 between anti-rotation arm-tie 4 with counterweight pallet 1, rotate relative to counterweight pallet 1 to prevent anti-rotation arm-tie 4.

Namely and for every assembly pouring weight 2,3, two neighbouring clump weights are male-female engagement, also the end face of each clump weight 2,3 all has positioning boss, and bottom surface has detent, can increase clump weight 2,3 stacking stability like this.

In order to fixed weight assembly in working order, the side (comprising longitudinal both sides and both lateral sides) of counterweight pallet 1 is provided with hydraulic power pin (or claiming hydraulic lock shotpin) 14,15, can in working order time described counterweight pallet 1 is fixed on the turntable of hoisting crane, the rear portion of turntable 16 specifically.

Below the lift system of the embodiment of the present invention is introduced again, it is arranged at the turntable of the hoisting crane of the embodiment of the present invention, comprise two groups of lifting subassemblies, each lifting subassembly is used for being connected with two anti-rotation arm-ties 4, two groups of lifting subassemblies come have the counterweight pallet 1 of clump weight 2,3 to promote to support jointly, often organize lifting subassembly and comprise elevating ram 8, equalizing bar 10 and two groups of chains 7.

As shown in Figure 5-Figure 8, elevating ram 8 is arranged at the relative inner of the framework of turntable 16, and the movable end of elevating ram 8 upwards vertically stretches out; And the mid point of equalizing bar 10 is connected to the movable end of elevating ram 8; Two groups of chains 7 are connected to the two ends of equalizing bar 10.

Elevating ram 8 upper end is with butt flange, and to be fixedly connected with by the relative inner of bolt with the framework of turntable 16, and elevating ram 8 lower end is with positioning spigot.

Equalizing bar 10 is roughly the capable shape of triangle, at the longitudinal centerline place of equalizing bar 10, be respectively fan-shaped slotted hole and axis hole one on the other, the movable end of elevating ram 8 is then provided with two bearing pins 11,12 one on the other, under bearing pin 12 be articulated with the movable end of elevating ram 8, be then placed in above-mentioned fan-shaped slotted hole at upper bearing pin 11.Like this, equalizing bar 10 can around under bearing pin rotate, but its rotation amplitude will be subject to the restriction at upper fan-shaped slotted hole.Slided in fan-shaped slotted hole by bearing pin 11 and adjust the whole center-of-gravity position carrying the counterweight pallet 1 of clump weight 2,3, prevent elevating ram 8 from bearing moment of flexure, and prevent counterweight pallet 1 from tumbling by anti-rotation arm-tie 4.

Simultaneously, in the present embodiment, the two ends of equalizing bar 10 are not directly connect chain 7, but by the jockey sprocket 9 that is fixedly installed on equalizing bar two ends chain 7 supported and lead, the framework of turntable 16 is fixed in the one end walking around the chain 7 of jockey sprocket 9 by bearing pin 13, and the other end of chain 7 is walked around to downward-extension after jockey sprocket 9, is be connected by the upper end of bearing pin 5 with anti-rotation arm-tie 4, as shown in Figure 8 time in working order.By the setting of jockey sprocket 9, add the length of chain 7, therefore can increase the hoisting depth of balance weight assembly.

As shown in Figure 8, the two ends of chain 7 all have joining shackle, and are with two kinds of joining shackles.Further, after the balance weight assembly of the embodiment of the present invention is promoted to configuration effort position by the lift system of the embodiment of the present invention, the movable end of elevating ram 8 shrinks and makes two groups of chains 7 be in disperse state, alleviates the power that chain 7 bears.

, then introduce the working process of balance weight assembly of the lift mechanism lifts embodiment of the present invention of the embodiment of the present invention below, as follows:

As shown in figs 2-4, counterweight pallet 1 is positioned on smooth ground, and some clump weights 2,3 are placed on counterweight pallet 1 successively, the detent of upper clump weight 3 be fastened under clump weight 2 positioning boss on; Two groups of four anti-rotation arm-ties 4 are connected with counterweight pallet 1 by two bearing pins 6.

As shown in Figure 5,6, the turntable 16 of the crawler crane of the embodiment of the present invention returns back to by 17 dead afts of getting off 17 positive sides of getting off, and is also 90-degree rotation.

As shown in Figure 7,8, by the crawler crane of the embodiment of the present invention get off 17 creeper undercarriage, directly over the counterweight pallet 1 lift system of the embodiment of the present invention being placed in the embodiment of the present invention, the direction that wherein chain 7 is sagging preferably in alignment with the direction that anti-rotation arm-tie 4 upwards extends, as shown in Figure 8.Wherein, the moving direction of cart 17 as depicted by the arrows in figure 7.

As shown in Figure 9, chain 7 is connected with anti-rotation arm-tie 4 by bearing pin 5 one by one.

As shown in Figure 10, the movable end of two elevating rams 8 starts synchronization of jacking up, chain 7 is promoted by jockey sprocket 9 pairs of balance weight assemblies, prevent counterweight pallet 1 from tumbling by anti-rotation arm-tie 4, carry out the adjustment of counterweight center-of-gravity position by the oval scallop on equalizing bar 10, prevent the lever of elevating ram 8 from bearing moment of flexure.

As shown in figure 11, counterweight pallet 1 is promoted to counterweight control position by chain 7 by elevating ram 8.

As shown in figure 12, together with counterweight pallet 1 is locked at turntable 16 by hydraulic power pin 14,15.

As shown in figure 13, the movable end of retracted downward elevating ram 8, makes chain 7 be in loose condition (of surface), reduces chain 7 stressed.

Although with reference to exemplary embodiment describing the application, should be appreciated that term used illustrates and exemplary and nonrestrictive term.Spirit or the essence of invention is not departed from because the application can specifically implement in a variety of forms, so be to be understood that, above-described embodiment is not limited to any aforesaid details, and explain widely in the spirit and scope that should limit in claim of enclosing, therefore fall into whole change in claim or its equivalency range and remodeling and all should be claim of enclosing and contained.

Claims (8)

1. one kind has the lift system of balance weight assembly, for hoisting crane, described balance weight assembly comprises: counterweight pallet, the two assembly pouring weights being arranged at described counterweight pallet two ends and the two groups of anti-rotation arm-ties arranged between described two assembly pouring weights, the bottom of described anti-rotation arm-tie is connected to described counterweight pallet, upwards extend perpendicular to described counterweight pallet, it is characterized in that, described lift system is arranged at the turntable of described hoisting crane, this lift system comprises two groups of lifting subassemblies, and each lifting subassembly comprises:
Elevating ram, is arranged at the relative inner of the framework of described turntable, and the movable end of described elevating ram upwards vertically stretches out;
Equalizing bar, the mid point of described equalizing bar is connected to the movable end of described elevating ram; And
Two groups of chains, are connected to the two ends of described equalizing bar; Wherein, the center of described equalizing bar is provided with fan-shaped slotted hole, the movable end of described elevating ram has the first bearing pin and the second bearing pin, and described equalizing bar is by described first hinge in described movable end, and described second bearing pin is placed in described fan-shaped slotted hole.
2. lift system as claimed in claim 1, it is characterized in that, the two ends of described equalizing bar are provided with jockey sprocket, described chain has first end and the second end, described first end is fixed on the inwall of the framework of described turntable, and described second end walks around described jockey sprocket to downward-extension to connect described anti-rotation arm-tie.
3. lift system as claimed in claim 2, it is characterized in that, described first end and described second end of described chain all have joining shackle.
4. lift system as claimed in claim 1, is characterized in that, after described balance weight assembly is promoted to counterweight control position by described lift system, described elevating ram shrinks and makes described two groups of chains be in disperse state.
5. lift system as claimed in claim 1, be is characterized in that, rotated between described anti-rotation arm-tie and described counterweight pallet by two pinned connection to prevent described anti-rotation arm-tie relative to described counterweight pallet.
6. lift system as claimed in claim 5, it is characterized in that, described in each, the end face of clump weight has positioning boss, and bottom surface has detent.
7. lift system as claimed in claim 6, it is characterized in that, the side of described counterweight pallet is provided with hydraulic power pin, described counterweight pallet to be fixed on time in working order the turntable of described hoisting crane.
8. a hoisting crane, is characterized in that, described crane tool is had the right the arbitrary described lift system of requirement 1-7.
CN201310750231.XA 2013-12-31 2013-12-31 There is lift system and the hoisting crane of balance weight assembly CN103708364B (en)

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Application Number Priority Date Filing Date Title
CN201310750231.XA CN103708364B (en) 2013-12-31 2013-12-31 There is lift system and the hoisting crane of balance weight assembly

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CN103708364B true CN103708364B (en) 2015-12-09

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* Cited by examiner, † Cited by third party
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CN109434543A (en) * 2019-01-10 2019-03-08 吉林大学 A kind of multi-angle manipulator of the dedicated grabbing workpiece of numerical control machining center

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6631814B2 (en) * 2000-02-25 2003-10-14 Liebherr-Werk Ehingen Gmbh Crane vehicle
EP1780167B1 (en) * 2005-10-26 2010-02-10 Liebherr-Werk Ehingen GmbH Mobile crane with counterweight
CN201770433U (en) * 2010-07-26 2011-03-23 上海三一科技有限公司 Rear counterweight device of crane
EP2436639A1 (en) * 2009-08-19 2012-04-04 Hunan Sany Intelligent Control Equipment Co., Ltd Counterweight loading and unloading device and movable crane
CN103395707A (en) * 2013-08-05 2013-11-20 徐工集团工程机械股份有限公司 Counterweight connection structure for rotary table

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6631814B2 (en) * 2000-02-25 2003-10-14 Liebherr-Werk Ehingen Gmbh Crane vehicle
EP1780167B1 (en) * 2005-10-26 2010-02-10 Liebherr-Werk Ehingen GmbH Mobile crane with counterweight
EP2436639A1 (en) * 2009-08-19 2012-04-04 Hunan Sany Intelligent Control Equipment Co., Ltd Counterweight loading and unloading device and movable crane
CN201770433U (en) * 2010-07-26 2011-03-23 上海三一科技有限公司 Rear counterweight device of crane
CN103395707A (en) * 2013-08-05 2013-11-20 徐工集团工程机械股份有限公司 Counterweight connection structure for rotary table

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