CN102674171A - Lazy arm protruded four-link steel wire rope telescoping mechanism - Google Patents
Lazy arm protruded four-link steel wire rope telescoping mechanism Download PDFInfo
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- CN102674171A CN102674171A CN2012101834482A CN201210183448A CN102674171A CN 102674171 A CN102674171 A CN 102674171A CN 2012101834482 A CN2012101834482 A CN 2012101834482A CN 201210183448 A CN201210183448 A CN 201210183448A CN 102674171 A CN102674171 A CN 102674171A
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Abstract
The invention provides a lazy arm protruded four-link steel wire rope telescoping mechanism which comprises a large arm, a bi-arm, a tri-arm and a small arm, wherein one tri-arm protruded steel wire rope is wound on a four-link pulley, a tri-arm double-layer half-moon pulley arranged below the tail part of the tri-arm, a piston rod head half-moon pulley on a piston rod and a bi-link steel wire rope pulling plate, so as to finally form a four-link steel wire rope used for driving a telescopic arm. The lazy arm protruded four-link steel wire rope telescoping mechanism provided by the invention has the following advantages: 1, one steel wire rope is utilized to form the four-link steel wire rope according to a certain winding method, so that the steel wire rope is uniformly stressed, and the safety factor of the service life of the steel wire rope is improved; 2, two layers of half-moon pulleys are arranged below the tri-arm, so that the occupied space of the telescoping mechanism is saved to a greater extent; and 3, the four-link steel wire rope in the telescoping mechanism adopts one steel wire rope, so that the telescoping mechanism has increased telescopic oil cylinder movement space and less possibility of generating interference compared with the prior art.
Description
Technical field
The present invention relates to a kind of crane tool equipment, what be specifically related to is that three arms in the arm stretch out tetrad steel rope telescoping mechanism.
Background technology
At four joint arms, five joint arms and more in the telescoping mechanism of single oil cylinder, general two arms and telescopic oil cylinder are hinged together flexible, and three arms stretch through steel rope and assembly pulley.Forearm stretches out to drive through three arms and stretches out, and two arms and telescopic oil cylinder are withdrawn together, and the withdrawal of three arms drives withdrawal through the withdrawal of two arms, and the forearm withdrawal drives withdrawal through the withdrawal of three arms.Because it is big that three arm bands carry the pulling force that stretches out; General tetrad or the more steel rope that joins of adopting more, the tetrad steel rope is divided into four, strains four steel ropes like this and will use four bolts; Be difficult to make steel rope stressed evenly after the assembling, the safety factor of rope service-life reduces greatly; Because telescopic oil cylinder is that motion space is little in the motion of arm the inside, is easy to produce and interferes again.
Summary of the invention
In order to overcome the deficiency that above-mentioned technology exists, technical matters to be solved by this invention provides a kind of compact conformation, little, the stressed uniform arm that takes up room stretches out tetrad steel rope telescoping mechanism.
Technical scheme of the present invention is: arm stretches out tetrad steel rope telescoping mechanism; Comprise big arm, two arms, three arms, forearm; Nested against one another and directly be connected between arm and the arm with slide block; It is characterized in that: be fixed with a bigeminy steel rope arm-tie on the big arm, have two holes that supply steel wire penetrating on the bigeminy steel rope arm-tie; The piston rod of telescopic oil cylinder is hinged with big arm, and piston rod is provided with the half-moon-shaped pulley of piston rod head, and the piston cylinder of telescopic oil cylinder and two arms are hinged, telescopic oil cylinder cylinder barrel head be provided with a confession steel rope around the tetrad pulley; Be provided with one the three double-layer half-moon-shaped pulley of arm below the three arm afterbodys; And have one three arm to stretch out steel rope to drive telescopic boom through finally becoming the tetrad steel rope on the double-layer half-moon-shaped pulley of three arms below tetrad pulley, three arm afterbodys, the half-moon-shaped pulley of piston rod head and the bigeminy steel rope arm-tie on the piston rod.
Said three arms stretch out steel rope one end and are fixed on the hole of bigeminy steel rope arm-tie; The other end is walked around first steel wire rope groove of tetrad pulley of telescopic oil cylinder head; From top to bottom around; Around the half-moon groove of the upper strata first quarter moon pulley of the double-layer half-moon-shaped pulley of three arms below three arms, below the half-moon groove of upper strata first quarter moon pulley, walk around the 3rd steel wire rope groove of tetrad pulley again, the back of coming out is around the half-moon-shaped pulley of the piston rod head to piston rod; Lay out the back from second steel wire rope groove of tetrad pulley, down to lay out; Half-moon groove around lower floor's first quarter moon pulley of the double-layer half-moon-shaped pulley of three arms below three arms up lays out under the 4th steel wire rope groove of tetrad pulley at last, receives on the another one hole of the bigeminy steel rope arm-tie on the big arm.
Advantage of the present invention: 1. become the tetrad steel rope by steel cable through certain winding, make steel rope stressed evenly, the safety factor of rope service-life improves; 2. the two-layer first quarter moon pulley below the 3rd arm is provided with, and has saved taking up room of telescoping mechanism to a great extent; 3. because the tetrad steel rope in this telescoping mechanism is the steel cable that adopts, thereby with respect to prior art, the telescopic oil cylinder motion space increases, and is not easy to produce to interfere.
Description of drawings
Fig. 1 is a structure birds-eye view of the present invention.
Fig. 2 is a steel rope rope row schematic diagram of the present invention.
Fig. 3 is the arm four joint arm telescoping mechanism structural representations at the present invention place.
The specific embodiment
Combine accompanying drawing at present, technology contents of the present invention is described further.
Like Fig. 1, Fig. 2, shown in Figure 3; Arm stretches out tetrad steel rope telescoping mechanism; Comprise big arm 1, two arms 2, three arms 3, forearm 4, nested against one another and directly be connected between arm and the arm with slide block, be fixed with a bigeminy steel rope arm-tie 5 on the big arm 1; Have two holes 5.1,5.2 that supply steel wire penetrating on the bigeminy steel rope arm-tie 5, big arm 1 head has big arm head fixed orifice 1.1; The piston rod 6.1 of telescopic oil cylinder 6 is hinged with big arm 1, and the piston rod 6.1 of telescopic oil cylinder 6 is provided with a half-moon-shaped pulley 7 of piston rod head, and the piston cylinder 6.2 of telescopic oil cylinder 6 and two arms 2 are hinged; Two arms, 2 heads have two three arm withdrawal pulleys 2.2 are arranged on two arm head anchor shaft stomidiums, 2.1, two arms, 2 afterbodys; The cylinder barrel head of telescopic oil cylinder 6 be provided with one supply steel rope around tetrad pulley 8, in telescopic oil cylinder 6 cylinder barrel bottoms a walking roller 11 is arranged; Be provided with a telescopic oil cylinder head first quarter moon pulley 6.3 below telescopic oil cylinder 6 cylinder heads; Being provided with one three double-layer half-moon-shaped pulley 9, three arms of arm 3 heads below three arms, 3 afterbodys has two forearms to stretch out pulley 3.1, three arms 3 afterbodys three arm tails withdrawal pin shaft hole 3.3 to be arranged above two forearms withdrawal pulley, 3.2, three arms, 3 afterbodys are arranged; Forearm 4 afterbodys have forearm to stretch out half-moon-shaped pulley 4.1; And have one three arm to stretch out steel rope 10 to drive telescopic boom through finally becoming the tetrad steel rope on half-moon-shaped pulley 7 of piston rod head on the double-layer half-moon-shaped pulley of three arms below tetrad pulley 8, three arms, 3 afterbodys 9, the piston rod 6.1 and the bigeminy steel rope arm-tie 5.
Two three arm withdrawal steel ropes are arranged through the withdrawal of three arms above three arms, 3 afterbodys pin shaft hole 3.3, walk around three arms withdrawal pulley 3.4, be fixed at last on the big arm head fixed orifice 1.1.
There is a forearm to stretch out in one of them pin shaft hole that steel rope one end is fixed on two arm head anchor shaft stomidiums 2.1; One of them forearm of walking around on three arms 3 stretches out pulley 3.1; The forearm of walking around forearm 4 afterbodys stretches out first quarter moon pulley 4.1; Another forearm of walking around again on three arms 3 stretches out pulley 3.1, is fixed at last in another pin shaft hole of two arm head anchor shaft stomidiums 2.1.
A forearm withdrawal steel rope is arranged; One end is fixed in the hole of forearm head fixed end 4.2; Walk around one of them forearm withdrawal pulley 3.2 of three arms, 3 afterbodys; Walk around the telescopic oil cylinder head first quarter moon pulley 6.3 below telescopic oil cylinder 6 cylinder heads again, walk around second forearm withdrawal pulley 3.2 of three arms, 3 afterbodys again, be fixed at last in another hole of forearm head fixed end 4.2.
Three arms stretch out steel rope 10 1 ends and are fixed on the hole 5.1 of bigeminy steel rope arm-tie 5; The other end is walked around tetrad pulley 8 first steel wire rope grooves 8.1 of telescopic oil cylinder 6 heads; From top to bottom around; Half-moon groove around the upper strata first quarter moon pulley 9.1 of the double-layer half-moon-shaped pulley 9 of three arms below three arms 3; Below the half-moon groove of upper strata first quarter moon pulley 9.1, walk around the 3rd steel wire rope groove 8.3 of tetrad pulley 8 again, the back of coming out lays out the back to lay out from top to bottom from 8 second steel wire rope grooves 8.2 of tetrad pulley around the piston rod head first quarter moon pulley 7 to piston rod 6.1; Half-moon groove around lower floor's first quarter moon pulley 9.2 of the double-layer half-moon-shaped pulley 9 of three arms below three arms 3; Up lay out for 8.4 times from the 4th steel wire rope groove of tetrad pulley 8 at last, receive on the another one hole 5.2 of the bigeminy steel rope arm-tie 5 on the big arm 1, steel cable has just become the tetrad steel rope like this.
The bigeminy steel rope arm-tie 5 on the big arm 1 as fixed end; It is movable pulley that the tetrad pulley 8 of telescopic oil cylinder 6 cylinder heads is used as; The double-layer half-moon-shaped pulley 9 of three arms below three arms, 3 afterbodys is used as free end, like this, and according to the motion principle of movable pulley; When the tetrad pulley of telescopic oil cylinder 6 cylinder heads 8 action S strokes, the free end of the double-layer half-moon-shaped pulley 9 of three arms below three arms, 3 afterbodys 2S the stroke of then taking action.In like manner regard two arms 2 as static; forearm stretches out steel rope one end and is fixed on two 2.1 li of arm head anchor shaft stomidiums and is used as and fixes; forearm stretches out half-moon-shaped pulley 4.1 and is used as free end; forearm stretches out pulley 3.1 with stroke S of three arms, 3 relative two arms, 2 action, and then forearm 4 also is that relative two arms 2 stretch out the 2S stroke; Promptly big relatively arm 1 action 3S stroke, such two arms 2 are with telescopic oil cylinder 6 motion one stroke S, and 3 liang of stroke 2S of three arms, forearm 4 three stroke 3S are synchronization telescope.Withdrawal of three arms and forearm withdrawal principle are the same.One three arm stretches out steel rope 10 and is used as four steel rope usefulness, and 9 two first quarter moon pulleys of the double-layer half-moon-shaped pulley of relative three arms do not have slide relative, thereby realize the effect of stressed equalization.
Claims (2)
1. arm stretches out tetrad steel rope telescoping mechanism; Comprise big arm (1), two arms (2), three arms (3), forearm (4); Nested against one another and directly be connected between arm and the arm with slide block; It is characterized in that: be fixed with a bigeminy steel rope arm-tie (5) on the big arm (1), have two hole (5.1), (5.2) that supply steel wire penetrating on the bigeminy steel rope arm-tie (5); The piston rod (6.1) of telescopic oil cylinder (6) is hinged with big arm (1); Piston rod (6.1) is provided with a half-moon-shaped pulley of piston rod head (7); The piston cylinder (6.2) of telescopic oil cylinder (6) and two arms (2) are hinged, telescopic oil cylinder (6) cylinder barrel head be provided with one supply steel rope around tetrad pulley (8); Be provided with one the three double-layer half-moon-shaped pulley of arm (9) below three arms (3) afterbody; And have one three arm to stretch out steel rope (10) to drive telescopic boom through finally becoming the tetrad steel rope on the double-layer half-moon-shaped pulley of three arms (9) below tetrad pulley (8), three arms (3) afterbody, the half-moon-shaped pulley of piston rod head (7) and the bigeminy steel rope arm-tie (5) on the piston rod (6.1).
2. arm according to claim 1 stretches out tetrad steel rope telescoping mechanism; It is characterized in that: said three arms stretch out steel rope (10) one ends and are fixed on the hole (5.1) of bigeminy steel rope arm-tie (5); The other end is walked around first steel wire rope groove of tetrad pulley (8) (8.1) of telescopic oil cylinder (6) head; From top to bottom around; Half-moon groove around the upper strata first quarter moon pulley (9.1) of the double-layer half-moon-shaped pulley of three arms (9) below three arms (3); Below the half-moon groove of upper strata first quarter moon pulley (9.1), walk around the 3rd steel wire rope groove of tetrad pulley (8) (8.3) again; Come out the back around the half-moon-shaped pulley of piston rod head (7) to piston rod (6.1), lay out the back to lay out from top to bottom, around the half-moon groove of the double-layer half-moon-shaped pulley of three arms (9) the lower floor's first quarter moon pulley (9.2) below three arms (3) from (8) second steel wire rope grooves of tetrad pulley (8.2); Under the 4th steel wire rope groove of tetrad pulley (8) (8.4), up lay out at last, receive on the another one hole (5.2) of the bigeminy steel rope arm-tie (5) on the big arm (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101834482A CN102674171A (en) | 2012-06-06 | 2012-06-06 | Lazy arm protruded four-link steel wire rope telescoping mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101834482A CN102674171A (en) | 2012-06-06 | 2012-06-06 | Lazy arm protruded four-link steel wire rope telescoping mechanism |
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| CN102674171A true CN102674171A (en) | 2012-09-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101834482A Pending CN102674171A (en) | 2012-06-06 | 2012-06-06 | Lazy arm protruded four-link steel wire rope telescoping mechanism |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103171983A (en) * | 2013-03-27 | 2013-06-26 | 长治清华机械厂 | Three-stage synchronization telescoping mechanism of suspension arm of crane |
| CN105460810A (en) * | 2015-12-14 | 2016-04-06 | 徐州徐工随车起重机有限公司 | Telescopic arm internally provided with three hydraulic cylinders and used for lorry-mounted crane |
| CN107250030A (en) * | 2015-02-27 | 2017-10-13 | 株式会社多田野 | Suspension rod elongation engages structure with metallic cable |
| CN110745721A (en) * | 2019-11-30 | 2020-02-04 | 安徽柳工起重机有限公司 | Speed-increasing telescopic mechanism of crane boom |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07157285A (en) * | 1993-12-10 | 1995-06-20 | Komatsu Mec Corp | Extending/contracting device for multistage boom |
| JPH0986877A (en) * | 1995-09-29 | 1997-03-31 | Tadano Ltd | Telescoping device of telescope boom |
| DE19641193C2 (en) * | 1996-09-24 | 2002-04-25 | Mannesmann Ag | Telescopic boom, especially for stationary or mobile cranes |
| CN201201870Y (en) * | 2008-03-25 | 2009-03-04 | 长沙中联重工科技发展股份有限公司 | Main arm telescoping guide device for crane |
| CN201433061Y (en) * | 2009-07-20 | 2010-03-31 | 三一汽车制造有限公司 | Automobile crane and telescopic arm device thereof |
| CN201809084U (en) * | 2010-06-21 | 2011-04-27 | 北京京城重工机械有限责任公司 | Four-section arm expansion structure |
-
2012
- 2012-06-06 CN CN2012101834482A patent/CN102674171A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07157285A (en) * | 1993-12-10 | 1995-06-20 | Komatsu Mec Corp | Extending/contracting device for multistage boom |
| JPH0986877A (en) * | 1995-09-29 | 1997-03-31 | Tadano Ltd | Telescoping device of telescope boom |
| DE19641193C2 (en) * | 1996-09-24 | 2002-04-25 | Mannesmann Ag | Telescopic boom, especially for stationary or mobile cranes |
| CN201201870Y (en) * | 2008-03-25 | 2009-03-04 | 长沙中联重工科技发展股份有限公司 | Main arm telescoping guide device for crane |
| CN201433061Y (en) * | 2009-07-20 | 2010-03-31 | 三一汽车制造有限公司 | Automobile crane and telescopic arm device thereof |
| CN201809084U (en) * | 2010-06-21 | 2011-04-27 | 北京京城重工机械有限责任公司 | Four-section arm expansion structure |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103171983A (en) * | 2013-03-27 | 2013-06-26 | 长治清华机械厂 | Three-stage synchronization telescoping mechanism of suspension arm of crane |
| CN107250030A (en) * | 2015-02-27 | 2017-10-13 | 株式会社多田野 | Suspension rod elongation engages structure with metallic cable |
| CN105460810A (en) * | 2015-12-14 | 2016-04-06 | 徐州徐工随车起重机有限公司 | Telescopic arm internally provided with three hydraulic cylinders and used for lorry-mounted crane |
| CN110745721A (en) * | 2019-11-30 | 2020-02-04 | 安徽柳工起重机有限公司 | Speed-increasing telescopic mechanism of crane boom |
| CN110745721B (en) * | 2019-11-30 | 2024-04-19 | 安徽柳工起重机有限公司 | Speed-increasing telescopic mechanism of crane boom |
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Application publication date: 20120919 |