CN102745607A - Balance arm and tower crane - Google Patents

Balance arm and tower crane Download PDF

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Publication number
CN102745607A
CN102745607A CN2012102615209A CN201210261520A CN102745607A CN 102745607 A CN102745607 A CN 102745607A CN 2012102615209 A CN2012102615209 A CN 2012102615209A CN 201210261520 A CN201210261520 A CN 201210261520A CN 102745607 A CN102745607 A CN 102745607A
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CN
China
Prior art keywords
arm
occlusion
equilibrium
counterbalanced weight
equilibrium arm
Prior art date
Application number
CN2012102615209A
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Chinese (zh)
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CN102745607B (en
Inventor
钱建军
李建华
俞立虎
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中联重科股份有限公司
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Application filed by 中联重科股份有限公司 filed Critical 中联重科股份有限公司
Priority to CN201210261520.9A priority Critical patent/CN102745607B/en
Publication of CN102745607A publication Critical patent/CN102745607A/en
Application granted granted Critical
Publication of CN102745607B publication Critical patent/CN102745607B/en

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Abstract

The invention provides a balance arm and a tower crane. The balance arm comprises an arm body and a shielding portion, a balancing weight installing port is disposed on the arm body, the shielding portion is used for adjusting the size of the balancing weight installing port, and the shielding portion is installed on the arm body and capable of moving relative to the arm body. According to the balance arm and the tower crane, when a balancing weight or all balancing weights is/are not required to be installed, an open portion of the balancing weight installing port on the arm body can be covered at any time through the shielding portion, so that the potential safety hazard is eliminated, and the safety is improved. Besides, an installation platform is not required to be arranged on two sides of the arm body, so that the cost is lowered.

Description

Equilibrium arm and tower crane
Technical field
The present invention relates to the hoisting crane field, more specifically, relate to a kind of equilibrium arm and tower crane.
Background technology
As depicted in figs. 1 and 2, tower crane of the prior art comprises the equilibrium arm 10 ' that is installed in crane arm one end.Because when galianconism is long; Only less counterbalanced weight 20 need be installed, therefore, cavity (being opening) will appear in the position that is used to install the counterbalanced weight installing port 50 of counterbalanced weight 20 on the equilibrium arm 10 '; Thereby the potential safety hazard of causing; For this reason, need to make special cover plate and cover the cavity, to improve safety.In addition,, need erecting stage 60 be set in the both sides with respect to equilibrium arm of equilibrium arm usually, so also increase cost for the Assembly &Disassembly counterbalanced weight.
Summary of the invention
The present invention aims to provide a kind of equilibrium arm and tower crane, to solve the high problem of equilibrium arm poor stability, cost of prior art.
For solving the problems of the technologies described above, according to a first aspect of the invention, a kind of equilibrium arm is provided, comprising: the arm body, the arm body is provided with the counterbalanced weight installing port; Be used to adjust the occlusion part of the size of counterbalanced weight installing port, occlusion part be installed on the arm body and relatively the arm body move.
Further, occlusion part is slidingly arranged on the arm body along the bearing of trend of arm body.
Further, occlusion part comprises body and the sliding part that is arranged on the body both sides, and the arm body comprises the guide part that is provided with along the bearing of trend of arm body, and sliding part is provided with guide part with matching.
Further, sliding part comprises the first crossing seamed edge and second seamed edge, and first seamed edge is connected with body, and second seamed edge is stuck in the outside of guide part.
Further, occlusion part also comprises operating parts, and operating parts is connected with body.
Further, equilibrium arm also comprises fixed railing, and fixed railing is connected with the arm body.
Further, equilibrium arm also comprises movable railing units, and movable railing units is arranged on the occlusion part.
Further, the arm body is provided with first locking part, and occlusion part is provided with second locking part that matches with first locking part.
Further, occlusion part has foldable structure or telescopic structure.
According to a second aspect of the invention, a kind of tower crane is provided, has comprised crane arm and equilibrium arm, this equilibrium arm is above-mentioned equilibrium arm, and the arm body of equilibrium arm is connected with crane arm.
Further, equilibrium arm also comprises counterbalanced weight, and counterbalanced weight is installed in the counterbalanced weight installing port place of equilibrium arm.
The present invention is in the time need not installing counterbalanced weight or all counterbalanceds weight need be installed; Can cover the open section of the counterbalanced weight installing port on the arm body through occlusion part at any time; Thereby eliminated potential safety hazard, improved safety; In addition, need erecting stage be set yet, thereby reduce cost in the both sides of arm body.
Description of drawings
The accompanying drawing that constitutes the application's a part is used to provide further understanding of the present invention, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 has schematically shown the structural representation of equilibrium arm of the prior art;
Fig. 2 has schematically shown the birds-eye view of Fig. 1;
Fig. 3 has schematically shown the mounting structure scheme drawing of the equilibrium arm among the present invention;
Fig. 4 has schematically shown the birds-eye view of Fig. 3;
Fig. 5 has schematically shown the A-A cutaway view of having removed among the Fig. 3 behind the counterbalanced weight;
Fig. 6 has schematically shown the structural representation of framework;
Fig. 7 has schematically shown the birds-eye view of Fig. 6;
Fig. 8 has schematically shown the structural representation of occlusion part;
Fig. 9 has schematically shown the birds-eye view of Fig. 8;
Figure 10 has schematically shown the structural representation of fixed platform;
Figure 11 has schematically shown the birds-eye view of Figure 10;
Figure 12 has schematically shown the scheme drawing a when counterbalanced weight is installed;
Figure 13 has schematically shown the scheme drawing when two counterbalanceds weight are installed;
Figure 14 has schematically shown the scheme drawing when three counterbalanceds weight are installed; And
Figure 15 has schematically shown the scheme drawing when five counterbalanceds weight are installed.
Reference numeral among the figure: 10 ', equilibrium arm; 10, arm body; 11, fixed platform; 12, fixed railing; 13, equilibrium arm pull bar; 14, framework; 14a, guide part; 15, first locking part; 20, counterbalanced weight; 30, crane arm; 40, occlusion part; 41, body; 42, sliding part; 44, operating parts; 45, second locking part; 50, counterbalanced weight installing port; 60, erecting stage; 70, movable railing units.
The specific embodiment
Below in conjunction with accompanying drawing embodiments of the invention are elaborated, but the multitude of different ways that the present invention can be defined by the claims and cover is implemented.
As first aspect of the present invention, a kind of equilibrium arm is provided.Please refer to Fig. 3-9, this equilibrium arm comprises: arm body 10, and arm body 10 is provided with counterbalanced weight installing port 50; Be used to adjust the occlusion part 40 of the size of counterbalanced weight installing port 50, occlusion part 40 be installed on the arm body 10 and relatively arm body 10 move, especially, at least a portion in the counterbalanced weight installing port 50 opens or closes through the motion of occlusion part 40.
When counterbalanced weight is installed, can occlusion part 40 be moved to the position that counterbalanced weight installing port 50 is opened, thereby expose counterbalanced weight installing port 50.When only less counterbalanced weight need being installed (for example galianconism long time), occlusion part 40 is moved to cover the position of (promptly closing) counterbalanced weight installing port 50.Certainly, occlusion part 40 can move to a part that only shelters from counterbalanced weight installing port 50, and makes its another part be in the state of opening, so that counterbalanced weight 20 is installed on block-by-block ground.Like this, along with the installation of counterbalanced weight, counterbalanced weight installing port 50 is opened gradually, and further, the shift position of occlusion part 40 can be confirmed according to the size of the balance block of required installation.
Therefore; The present invention is in the time need not installing counterbalanced weight or all counterbalanceds weight need be installed; Can cover the open section of the counterbalanced weight installing port 50 on the arm body 10 through occlusion part 40 at any time, thereby eliminate potential safety hazard, improved safety, in addition; Need erecting stage be set yet, thereby reduce cost in the both sides of arm body 10.When counterbalanced weight is installed, only need a people to stand on the occlusion part and can accomplish, have simple in structure, convenience operation.
In one embodiment, occlusion part 40 is slidingly arranged on the arm body 10 along the bearing of trend of arm body 10.Like this, only need the position of adjustment occlusion part 40 on the bearing of trend of arm body 10, just can adjust the size of counterbalanced weight installing port 50.In another unshowned embodiment; Occlusion part 40 has foldable structure (for example corrugated foldable structure) or telescopic structure (telescopic structure of for example similar antenna formula); Through foldable structure or telescopic structure; Occlusion part 40 is folded or shrinks, thereby can adjust the size of counterbalanced weight installing port.
Preferably, equilibrium arm also comprises fixed railing 12, and fixed railing 12 is connected with arm body 10.Preferably; Equilibrium arm also comprises movable railing units 70, and movable railing units 70 is arranged on the occlusion part 40, and can be with the motion campaign of occlusion part 40; Form the zone of protection that moves along with occlusion part 40 between fixed railing 12 and the movable railing units 70 thereby make, thereby strengthened the safety when counterbalanced weight is installed.Preferably, arm body 10 comprises framework 14 and is installed in the fixed platform 11 on the framework 14 that occlusion part 40 is slidably disposed on the top of fixed platform 11.
Please refer to shown in Fig. 5, the 8-9, occlusion part 40 comprises body 41 and the sliding part 42 that is arranged on body 41 both sides, and arm body 10 comprises the guide part 14a that is provided with along the bearing of trend of arm body 10, and sliding part 42 is provided with guide part 14a with matching.As shown in Figure 5, body 41 is supported on the guide part 14a through sliding part 42, and can slide along guide part 14a.
In a preferred embodiment, as shown in Figure 5, sliding part 42 comprises the first crossing seamed edge and second seamed edge, and first seamed edge is connected with body 41, and second seamed edge is stuck in the outside of guide part 14a.Like this, first seamed edge and guide part 14a connect, so can guide part 14a be limited between these two sliding parts 42 through being arranged on the sliding part 42 of body 41 both sides.Certainly, sliding part 42 is not limited to above-mentioned form, can also be chute etc.
Shown in Fig. 8 and 9, occlusion part 40 also comprises operating parts 44, and operating parts 44 is connected with body 41, through operating parts 44, can drag occlusion part 40 motions easily, thereby adjust the size of counterbalanced weight installing port, promptly adjusts the aperture of counterbalanced weight installing port.Preferably, operating parts 44 is handspikes.
Preferably, shown in Fig. 8 and 10, arm body 10 is provided with first locking part 15, and occlusion part 40 is provided with second locking part 45 that matches with first locking part 15.After occlusion part 40 moves to suitable position, can pass through first locking part 15 and second locking part 45, with occlusion part 40 lockings, it is mobile to prevent that it from meeting accident.For example, first locking part 15 and second locking part 45 can adopt the pin locking.
When counterbalanced weight was not installed, occlusion part covered the counterbalanced weight installing port fully, thereby had improved safety.Shown in figure 12, when first counterbalanced weight is installed, occlusion part is spurred certain distance to the right, so that first counterbalanced weight is installed.When needs are installed second counterbalanced weight, again occlusion part is spurred certain distance to the right, so that second counterbalanced weight is installed.Please refer to Figure 13-15, by that analogy, can all counterbalanceds weight be installed on the arm body.
As second aspect of the present invention, a kind of tower crane is provided, comprise crane arm 30 and equilibrium arm, this equilibrium arm is above-mentioned equilibrium arm, the arm body 10 of equilibrium arm is connected with crane arm.Preferably, equilibrium arm also comprises counterbalanced weight 20, and counterbalanced weight 20 is installed in counterbalanced weight installing port 50 places of equilibrium arm.Preferably, be connected pivotly through bearing pin between equilibrium arm and the crane arm.Further, equilibrium arm also comprises equilibrium arm pull bar 13, and an end of equilibrium arm pull bar 13 is connected with equilibrium arm, and its other end is connected with crane arm.
The above is merely the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (11)

1. an equilibrium arm is characterized in that, comprising:
Arm body (10), said arm body (10) is provided with counterbalanced weight installing port (50);
Be used to adjust the occlusion part (40) of the size of said counterbalanced weight installing port (50), said occlusion part (40) is installed in that said arm body (10) is gone up and can said relatively arm body (10) motion.
2. equilibrium arm according to claim 1 is characterized in that, said occlusion part (40) is slidingly arranged on the said arm body (10) along the bearing of trend of said arm body (10).
3. equilibrium arm according to claim 2; It is characterized in that; Said occlusion part (40) comprises body (41) and is arranged on the sliding part (42) of said body (41) both sides; Said arm body (10) comprises the guide part (14a) that is provided with along the bearing of trend of said arm body (10), and said sliding part (42) is provided with said guide part (14a) with matching.
4. equilibrium arm according to claim 3 is characterized in that, said sliding part (42) comprises the first crossing seamed edge and second seamed edge, and said first seamed edge is connected with said body (41), and said second seamed edge is stuck in the outside of said guide part (14a).
5. equilibrium arm according to claim 3 is characterized in that, said occlusion part (40) also comprises operating parts (44), and said operating parts (44) is connected with said body (41).
6. according to each described equilibrium arm among the claim 1-5, it is characterized in that said equilibrium arm also comprises fixed railing (12), said fixed railing (12) is connected with said arm body (10).
7. equilibrium arm according to claim 6 is characterized in that, said equilibrium arm also comprises movable railing units (70), and said movable railing units (70) is arranged on the said occlusion part (40).
8. according to each described equilibrium arm among the claim 1-5, it is characterized in that said arm body (10) is provided with first locking part (15), said occlusion part (40) is provided with second locking part (45) that matches with said first locking part (15).
9. equilibrium arm according to claim 1 is characterized in that, said occlusion part (40) has foldable structure or telescopic structure.
10. a tower crane comprises crane arm and equilibrium arm, it is characterized in that, said equilibrium arm is each described equilibrium arm among the claim 1-9, and the arm body (10) of said equilibrium arm is connected with said crane arm.
11. tower crane according to claim 10 is characterized in that, said equilibrium arm also comprises counterbalanced weight (20), and said counterbalanced weight (20) is installed in the counterbalanced weight installing port (50) of said equilibrium arm and locates.
CN201210261520.9A 2012-07-26 2012-07-26 Equilibrium arm and tower crane CN102745607B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210261520.9A CN102745607B (en) 2012-07-26 2012-07-26 Equilibrium arm and tower crane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210261520.9A CN102745607B (en) 2012-07-26 2012-07-26 Equilibrium arm and tower crane

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CN102745607A true CN102745607A (en) 2012-10-24
CN102745607B CN102745607B (en) 2015-08-19

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103193167A (en) * 2013-04-09 2013-07-10 中联重科股份有限公司 Balanced arm and crane
CN103482499A (en) * 2013-09-30 2014-01-01 中联重科股份有限公司 Tower crane
CN104045008A (en) * 2014-05-30 2014-09-17 中联重科股份有限公司 Segmented balance arm and tower crane
CN105460814A (en) * 2015-09-30 2016-04-06 徐州建机工程机械有限公司 Safety protective fence of tower crane balance arm
CN106629421A (en) * 2016-12-19 2017-05-10 谢国贤 Swing arm tower crane provided with integrated hoisting arm
CN107161889A (en) * 2017-06-12 2017-09-15 无锡石油化工起重机有限公司 The loop wheel machine counter-jib of room space is set
CN107235425A (en) * 2017-07-20 2017-10-10 无锡石油化工起重机有限公司 The counter-jib of peripheral hardware extension platform is set

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3345327A1 (en) * 1983-12-15 1985-06-27 Elba Werk Maschinen Gmbh & Co Tower crane with jib and counter-jib
JP2000255983A (en) * 1999-01-27 2000-09-19 Potain Sa Method and device for installing mast head on tower crane
ES2264334A1 (en) * 2003-07-22 2006-12-16 San Marco International S.R.L. Crane has ballast for balance whose horizontal axis corresponds to neutral axis of counter arm of tower
EP1840076A1 (en) * 2006-03-30 2007-10-03 Manitowoc Crane Group France An assembly for a tower crane made up of a camber and its ballast
CN101759108A (en) * 2008-12-25 2010-06-30 抚顺永茂建筑机械有限公司 Self-disassembling device of tower crane
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
CN201932850U (en) * 2009-08-11 2011-08-17 周杨 Integral balance arm of tower crane

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3345327A1 (en) * 1983-12-15 1985-06-27 Elba Werk Maschinen Gmbh & Co Tower crane with jib and counter-jib
JP2000255983A (en) * 1999-01-27 2000-09-19 Potain Sa Method and device for installing mast head on tower crane
ES2264334A1 (en) * 2003-07-22 2006-12-16 San Marco International S.R.L. Crane has ballast for balance whose horizontal axis corresponds to neutral axis of counter arm of tower
EP1840076A1 (en) * 2006-03-30 2007-10-03 Manitowoc Crane Group France An assembly for a tower crane made up of a camber and its ballast
CN101759108A (en) * 2008-12-25 2010-06-30 抚顺永茂建筑机械有限公司 Self-disassembling device of tower crane
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
CN201932850U (en) * 2009-08-11 2011-08-17 周杨 Integral balance arm of tower crane

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103193167A (en) * 2013-04-09 2013-07-10 中联重科股份有限公司 Balanced arm and crane
CN103193167B (en) * 2013-04-09 2015-07-08 中联重科股份有限公司 Balanced arm and crane
CN103482499A (en) * 2013-09-30 2014-01-01 中联重科股份有限公司 Tower crane
CN103482499B (en) * 2013-09-30 2016-02-24 中联重科股份有限公司 Tower crane
CN104045008A (en) * 2014-05-30 2014-09-17 中联重科股份有限公司 Segmented balance arm and tower crane
CN104045008B (en) * 2014-05-30 2016-01-06 中联重科股份有限公司 Segment type equilibrium arm and tower crane
CN105460814A (en) * 2015-09-30 2016-04-06 徐州建机工程机械有限公司 Safety protective fence of tower crane balance arm
CN106629421A (en) * 2016-12-19 2017-05-10 谢国贤 Swing arm tower crane provided with integrated hoisting arm
CN107161889A (en) * 2017-06-12 2017-09-15 无锡石油化工起重机有限公司 The loop wheel machine counter-jib of room space is set
CN107235425A (en) * 2017-07-20 2017-10-10 无锡石油化工起重机有限公司 The counter-jib of peripheral hardware extension platform is set

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Address after: 415106 Dingcheng City, Changde Province, the town of irrigation district ZOOMLION Creek Industrial Park

Patentee after: Zoomlion Heavy Industry Science & Technology Development Co., Ltd.

Address before: 410013 Yuelu District, Hunan, silver basin Road, No. 361, No.

Patentee before: Zoomlion Heavy Industry Science & Technology Development Co., Ltd.

CP02 Change in the address of a patent holder
CP02 Change in the address of a patent holder

Address after: 410013 Yuelu District, Hunan, silver basin Road, No. 361, No.

Patentee after: Zoomlion Heavy Industry Science & Technology Development Co., Ltd.

Address before: 415106 Dingcheng City, Changde Province, the town of irrigation district ZOOMLION Creek Industrial Park

Patentee before: Zoomlion Heavy Industry Science & Technology Development Co., Ltd.