CN106744387B - A kind of joint arm sequential telescopic arm of twin-tub six - Google Patents
A kind of joint arm sequential telescopic arm of twin-tub six Download PDFInfo
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- CN106744387B CN106744387B CN201611232244.8A CN201611232244A CN106744387B CN 106744387 B CN106744387 B CN 106744387B CN 201611232244 A CN201611232244 A CN 201611232244A CN 106744387 B CN106744387 B CN 106744387B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/64—Jibs
- B66C23/70—Jibs constructed of sections adapted to be assembled to form jibs or various lengths
- B66C23/701—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic
- B66C23/705—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic telescoped by hydraulic jacks
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- Mechanical Engineering (AREA)
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Abstract
The invention discloses a kind of joint arm sequential telescopic arm of twin-tub six, between large arm and two arms, between two arms and three arms, without steel wire rope between three arms and four arms, reduce large arm, two arms, three arms, the structural section drop of four arms, in the case of equal large arm section, the space of five arms and six arms is added, while one stretches cylinder and stretches cylinder with two and is rigidly connected, there is no the oil circuit between hydraulic hose connection, reduce flexible pipe arrangement and leakage point, increase inner space, one, which stretches cylinder and two, stretches cylinder and pass through mechanical check valve, exact sequence stretches, more reliable；The present apparatus uses the design that six joint arms are stretched, reduce section drop, increase the space of telescopic oil cylinder, increase lifting performance and raising stock utilization are improved a lot, all pulleys and flexible steel wire rope are all inside arm body simultaneously, both flexible service life of steel wire rope had been added, has improved overall aesthetic property again.
Description
Technical field
The present invention relates to a kind of telescoping boom, and in particular to a kind of joint arm sequential telescopic arm of twin-tub six.
Background technology
In the telescoping mechanism of six arms and more single oil cylinder, prior art is typically using double telescoping cylinders or Multi-stage cylinder flexible six
Joint arm；High using Multi-stage cylinder manufacture difficulty, cost is high, weight weight；It is to realize that order is stretched by pressure differential a bit using twin-tub
Contracting, if structure fabrication etc. is unreasonable, it is likely that stretch out of order, meanwhile, many semi-girder pulleys are placed on outside arm head, to whole
External see has a significant impact, and pulley is outside arm head in addition, and complete machine is in transport or operation, it is likely that can hook thing, cause
Life and property harm；Also some arm bodies are that a section band one section is stretched, a section section contracting of band one, so increase the quantity of steel wire rope, steel
Cord can not make full use of.For the also flexible steel wire rope of some each arm joints between every joint arm body, it is poor so to increase arm section,
It is unfavorable for arm performance to make full use of, while under same large arm section, the space of telescoping cylinder activity is less.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of compact-sized, and flexible pulley and flexible steel wire rope are all laid out
In arm body, twin-tub sequential telescopic, the joint arm sequential telescopic arm of twin-tub six of flexible steel wire rope is not placed between each joint arm body as far as possible.
In order to solve the above-mentioned technical problem, the joint arm sequential telescopic arm of a kind of twin-tub six provided by the invention, including large arm,
Two arms are nested in described large arm, and three arms are nested in two described arms, and four arms are nested in three described arms, and five arms are nested
In four described arms, six arms are nested in five described arms, and double telescoping cylinders are nested in six described arms, and described is double flexible
One in cylinder stretches the head of cylinder rod head and the afterbody of described large arm is hinged, and one in described double telescoping cylinders stretches the head of cylinder cylinder head
Portion and the afterbody of two described arms are hinged, and the two of described double telescoping cylinders, which stretch the head of cylinder rod head and described one, stretches cylinder cylinder head
Head is fixedly connected, and the two of described double telescoping cylinders stretch the head of cylinder cylinder head is hinged in three described arms with three described arms
The two of afterbody stretch the arm hinge of cylinder three, and described two afterbodys for stretching cylinder cylinder head are provided with four arms and stretch out pulley and the one or six arm retraction cunning
Wheel；The afterbody that described one stretches cylinder cylinder head stretches cylinder fixing end provided with one；The afterbody of two described arms is provided with two arm tail fixing ends, institute
The afterbody for three arms stated is provided with three arm tail fixing ends and four arm retraction pulleys；The afterbody of four described arms is provided with four arm tail fixing ends
3rd, the two or six arm retraction pulley, four arm tail fixing ends one, four arm tail fixing ends two and four arm tail fixing ends four, four described arms
Head be provided with four arm head truckles and the big pulley of four arm heads；One end of four arms stretching steel wire rope is fixed on four described arm tails and consolidated
On fixed end two, the other end stretches out pulley around four described arms and is fixed in two described arm tail fixing ends；Described four arms contracting
Go back to steel wire rope one end and be fixed on described one and stretch cylinder fixing end, the other end is fixed on described around four described arm retraction pulleys
In four arm tail fixing ends one；The afterbody of five described arms is provided with five arm wheels, and the head of five described arms is provided with five arm head truckles
With the big pulley of five arm heads, five arms stretch out steel wire rope one end and are fixed in three described arm tail fixing ends, and the other end is around described
The big pulley of four arm heads, five arm wheels and four arm head truckles are fixed in three arm tail fixing ends described in another again；Described six
The afterbody of arm is provided with six arm wheels, and the head of six described arms is provided with six arm head fixing ends, and one end that six arms stretch out steel wire rope is fixed
In four described arm tail fixing ends three, the other end is consolidated around the described big pulley of five arm heads, six arm wheels and five arm head truckles
It is scheduled in four arm tail fixing ends three described in another, one end of six arm retraction steel wire ropes is fixed on six described arm head fixing ends
On, the other end is fixed to four described arm tail fixing ends around described the one or six arm retraction pulley and the two or six arm retraction pulley
On four.
Five described arm wheels are the moon of five arm half, and the moon of five arm half is welded on five arm tail tops.
Six described arm wheels are the moon of six arm half, and the moon of six arm half is welded on six arm tail tops.
Described double telescoping cylinders be two-tank method telescopic oil cylinder or first stretch cylinder stretch again two stretch cylinder sequential telescopic oil
Cylinder.
Using the joint arm sequential telescopic arm of twin-tub six of above-mentioned technical proposal, large arm is motionless, and two arms are nested in large arm, and three
Arm is nested in two arms, and three arms are nested in two arms, and four arms are nested in three arms, and five arms are nested in four arms, and six arms are nested in
In five arms, double telescoping cylinders are nested in six arms.A boom head in double telescoping cylinders is hinged with large arm, and one stretches cylinder cylinder head and two arms hinge
Connect, one stretches cylinder and two arms with flexible, and two, which stretch cylinder rod head, stretches cylinder cylinder barrel with one and fix, and two stretch cylinder cylinder head is hinged with three arms, three arms
Cylinder is stretched with flexible with two.
Four arms protrude through two four arms stretched on cylinder cylinder head and stretch out pulley and the flexible steel wire rope stretching of four arms, and four arms stretch out steel
Cord one end is fixed on four arm tail ends, and four arms that cylinder cylinder head is stretched around two stretch out pulley, are fixed on three arm tail ends.Four arms are retracted logical
The four arm retraction steel wire ropes and four arm retraction steel wire ropes for crossing three arm tail ends are retracted, and four arm retraction steel wire rope one end are fixed on one and stretch cylinder
Head bottom, around four arm retraction pulleys of three arm afterbodys, four arm tail ends are fixed on, such three arm is flexible to drive four arms with flexible.
Five arms protrude through the pulley and half moon of five arm afterbodys and five arms stretching steel wire rope in four arm head portions, the stretching of five arms
Three arm tails are fixed in steel wire rope one end, around four arm head truckles, then half moon to five arm tails, further around the big cunning for crossing four arm heads
Wheel, then three arm tails are fixed on, such four arm, which stretches out, drives five arms to stretch out.
Six arms protrude through the pulley and half moon of six arm afterbodys and six arms stretching steel wire rope composition in five arm head portions, six arms
Stretch out steel wire rope one end and fix four arm tails, around five arm head truckles, then half moon to six arm tails, further around the big of five arm heads excessively
Pulley, then four arm tails are fixed on, such five arm, which stretches out, drives six arms to stretch out.Similarly, six arms, which are retracted, can drive five arms to retract；Six
Arm is retracted through six arm retraction steel wire ropes and six arm retraction pulleys of the two six arm retraction pulleys and four arm tails for stretching cylinder bottom form, and six
Arm retraction steel wire rope one end is fixed on six arm head portions, around six arm retraction pulleys of four arm tails, further around excessively two six arms for stretching cylinder bottom
Retraction pulley, then fixed to four arm afterbodys, such four arm, which is retracted, drives their retractions of five arms, and because six arms stretching steel wire rope is same
Sample plays the role of the retraction of five arms, and six arms, which are retracted, drives five arms to retract.
The present invention is laid out in arm body by flexible pulley and flexible steel wire rope, and the double of mechanical switch sequential telescopic stretch
Contracting cylinder solves the above problems, its advantage：1. twin-tub is by the flexible 2. large arm of mechanical limit switch control sequence and two arms, and two
Non-telescope steel wire rope between the arm body of arm and three arms, three arms and four arms, greatly reduce between large arm, two arms, three arms and four arms
Section it is poor, it is highly beneficial to lifting performance, while to telescoping cylinder space bigger 3. all flexible pulleys and steel wire rope all
Inside arm body, both prevented steel wire rope from by wind and weather, adding arm overall appearance and passing through property again.
In summary, the present invention is a kind of compact-sized, and flexible pulley and flexible steel wire rope are all laid out in arm body, twin-tub
Sequential telescopic, the joint arm sequential telescopic arm of twin-tub six of flexible steel wire rope is not placed between each joint arm body as far as possible.
Brief description of the drawings
Fig. 1 is the structure front view of the present invention.
Fig. 2 is the top view of the present invention.
Fig. 3 is that five arms where the present invention stretch out rope rope figure.
Fig. 4 is that six arms at place of the invention stretch out rope { five arms, which are retracted, restricts } rope figure.
Fig. 5 is that double telescoping cylinders stretch a retraction front view.
Fig. 6 is that double telescoping cylinders stretch a stretching front view.
Number explanation：
1- large arm, the arms of 2- bis-, the arm tail fixing ends of 2.1- bis-, the arms of 3- tri-, the arm tail fixing ends of 3.1- tri-, the arms of 3.2- tetra-, which are retracted, to be slided
Wheel, 3.3- bis- stretch the arm hinge of cylinder three, the arms of 4- tetra-, the arm tail fixing ends three of 4.1- tetra-, the arm retraction pulleys of 4.2- the two or six, the arms of 4.3- tetra-
Tail fixing end one, the arm tail fixing ends two of 4.4- tetra-, the arm tail fixing ends four of 4.5- tetra-, the arm head truckles of 4.6- tetra-, the arm heads of 4.7- tetra-
Big pulley, the arms of 5- five, the moon of five arms of 5.1- half, the arm head truckles of 5.2- five, the big pulley of the arm heads of 5.3- five, the arms of 6- six, 6.1- six
The moon of arm half, the arm head fixing ends of 6.2- six, the double telescoping cylinders of 7-, 7.1- mono- stretch cylinder rod head, and 7.2- mono- stretches cylinder cylinder head, and 7.3- bis- stretches cylinder
Head, 7.4- bis- stretch cylinder cylinder head, and 7.5- mono- stretches cylinder fixing end, and the arms of 7.6- tetra- stretch out pulley, the arm retraction pulleys of 7.7- the one or six,
7.8- core pull bars, the pull-type nonreturn valve cores of 7.9-, 7.10- pushing-type nonreturn valve cores, 7.11- hit disk, 7.12- conduits, and the arms of 8- five stretch out
Steel wire rope, the arms of 9- six stretch out steel wire rope, and the arms of 10- tetra- stretch out steel wire rope, the arm retraction steel wire ropes of 11- tetra-, the arm retraction steel wires of 12- six
Rope.
Embodiment
In conjunction with accompanying drawing, the technology contents of the present invention are described further.
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5 and Fig. 6, large arm 1 is motionless, and two arms 2 are nested in large arm 1, and three arm 3 is nested
In two arms 2, four arms 4 are nested in three arms 3, and five arms 5 are nested in four arms 4, and six arms 6 are nested in five arms 5, double telescoping cylinders 7
It is nested in six arms 6.One in double telescoping cylinders 7 stretches the head of cylinder rod first 7.1 and the afterbody of large arm 1 is hinged, in double telescoping cylinders 7
One stretches the head of cylinder cylinder head 7.2 and the afterbody of two arms 2 is hinged, and one stretches cylinder and two arms 2 with flexible, and two in double telescoping cylinders 7 stretch cylinder
The head that cylinder cylinder head 7.2 is stretched on the head of head 7.3 with one is fixedly connected, and the two of double telescoping cylinders 7 stretch the head and three of cylinder cylinder head 7.4
The afterbody that arm 3 is hinged in three arms 3 two stretches the arm hinge 3.3 of cylinder three, and three arms 3 and two stretch cylinder with flexible.Two stretch cylinder cylinder head 7.4
Afterbody is provided with four arms and stretches out the arm retraction pulley 7.7 of pulley 7.6 and the 1st.One afterbody for stretching cylinder cylinder head 7.2 is stretched cylinder provided with one and consolidated
Fixed end 7.5.
The afterbody of two arms 2 is provided with two arm tail fixing ends 2.1, and the afterbody of three arms 3 is provided with three arm tail fixing ends 3.1 and four arms
Retraction pulley 3.2.
The afterbody of four arms 4 is provided with four arm tail fixing ends 3 4.1, the two or six arm retraction pulley 4.2, four arm tail fixing ends one
4.3rd, four arm tail fixing ends 2 4.4 and four arm tail fixing ends 4 4.5, the head of four arms 4 are provided with four arm head truckles 4.6 and four arms
The big pulley 4.7 of head；Two four arms stretched on cylinder cylinder head 7.4 that protrude through of four arms 4 stretch out the arm of pulley 7.6 and four stretching steel wire rope 10
Realize and stretch out, one end that four arms stretch out steel wire rope 10 is fixed in four arm tail fixing ends 2 4.4, and the other end stretches cylinder bottom around two
Four arms stretch out pulley 7.6 and are fixed in two arm tail fixing ends 2.1.Four arms of the tail end for being retracted through three arms 3 of four arms 4, which are retracted, to be slided
The arm retraction steel wire rope 11 of wheel 3.2 and four, which is realized, retracts, and the one end of four arm retraction steel wire rope 11 is fixed on an afterbody for stretching cylinder cylinder head 7.2
One stretch cylinder fixing end 7.5, the other end is fixed on four arm tail fixing ends one around four arm retraction pulleys 3.2 of the afterbody of three arm 3
4.3, such three arm 3 is flexible to drive four arms 4 with flexible.
The afterbody of five arms 5 is provided with the moon 5.1 of five arm half, and the head of five arms 5 is provided with five arm head truckles 5.2 and five arm heads are big
Pulley 5.3.The pulley and the moon 5.1 of five arm half of five arm afterbodys on the head for protruding through four arms 4 of five arms 5 and five arms stretch out steel
Cord 8 realizes that five arms stretch out the one end of steel wire rope 8 and are fixed in three arm tail fixing ends 3.1, and the other end bypasses the big pulley of four arm heads
4.7, then to the moon 5.1 of five arm half, further around crossing four arm head truckles 4.6, then it is fixed in another three arms tail fixing end 3.1,
Such four arm 4, which stretches out, drives five arms 5 to stretch out.
The afterbody of six arms 6 is provided with the moon 6.1 of six arm half, and the head of six arms 6 is provided with six arm head fixing ends 6.2, and six arms 6 are stretched
Go out the moon 6.1 of six arm half of the afterbody by the pulley on the head of five arms 5 and six arms 6 and six arms stretch out steel wire rope 9 and formed, six arms
The one end for stretching out steel wire rope 9 is fixed in four arm tail fixing ends 3 4.1, and the other end bypasses the big pulley 5.3 of five arm heads, then to six arms
Half moon 6.1, further around five arm head truckles 5.2 excessively, then it is fixed in another four arms tail fixing end 3 4.1, such five arm 5 is stretched
Go out to drive six arms 6 to stretch out.The six arm retraction steel wire ropes 12 and two that are retracted through of six arms 6 stretch the one or six arm retraction pulley of cylinder bottom
7.7 and 4 the two or six arm retraction pulley 4.2 of arm tail realize that one end of six arm retraction steel wire ropes 12 is fixed on six arm head fixing ends
On 6.2, the other end bypasses the two or six arm retraction pulley 4.2 of the afterbody of four arms 4, and the one or six arm that cylinder bottom is stretched then around to two is retracted
Pulley 7.7, then fixed in four arm tail fixing ends 4 4.5, such retraction of four arm 4 pulls five arms 5 to retract, and because six arms stretch out
Steel wire rope 9 equally plays the role of the retraction of five arms, and now, the moon 6.1 of six arm half is driving link, and two sizes on the head of five arms 5 are slided
Take turns and drive five arms 5 to retract for driven member, the retraction of six arms 6.
For double telescoping cylinders 7：One stretch the one of cylinder stretch cylinder rod it is first 7.1 stretch out when, hit disk 7.11 and hold out against pushing-type check valve
7.10, hydraulic oil stretches cylinder center from one, through the center of core pull bar 7.8, by pushing-type nonreturn valve core 7.10, stretches cylinder without bar into one
Chamber, by rod chamber by stretching a bar cramp layer oil return, one, which stretches the one of cylinder, stretches first 7.1 stretching of cylinder rod, such as Fig. 5 for oil return；Cylinder is stretched when one
One when stretching cylinder rod first 7.1 and reaching bottom soon, core pull bar 7.8 opens pull-type nonreturn valve core 7.9, and hydraulic oil is worn from a bar center is stretched
The center of core pull bar 7.8 is crossed, { cylinder cylinder head 7.2 and two is stretched by pull-type nonreturn valve core 7.9, then by conduit 7.12 and stretches cylinder due to one
Head 7.3 is to be rigidly connected, and is not relative motion, and the conduit can use steel pipe manufacturing }；Enter two and stretch cylinder rodless cavity, two stretch
Cylinder stretches out, and oil return is same to stretch cylinder stretching；Such two stretch cylinder stretching, and by mechanical nonreturn valve core, just telescoping cylinder is strict in order
It is flexible；Similarly, retract opposite.
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5 and Fig. 6, between the arm 2 of large arm 1 and two, between two arms 2 and three arms 3, three
Without steel wire rope between the arm 4 of arm 3 and four, the structural section drop of large arm 1, two arms 2, three arms 3 and four arms 4 is substantially reduced, also
It is the space that five arms 5 and six arms 6 in the case of equal large arm section, can be considerably increased, while one stretches cylinder and two and stretches cylinder
It is rigidly connected, the oil circuit between being connected without hydraulic hose, reduces flexible pipe arrangement and leakage point, increase inner space, it is double
The one of telescoping cylinder 7 stretches cylinder and two and stretches cylinder and stretched by mechanical check valve, exact sequence, and order is realized than that sensible pressure difference
It is flexible more reliable；The present apparatus can greatly reduce section drop, increase telescopic oil cylinder in the design process that six joint arms are stretched
Space, to increase lifting performance and improve stock utilization and improve a lot, while all pulleys and flexible steel wire rope
All inside arm body, that is, flexible service life of steel wire rope is added, improve overall aesthetic property again.
Claims (4)
1. a kind of joint arm sequential telescopic arm of twin-tub six, including large arm (1), it is inner that two arms (2) are nested in described large arm (1), three
Arm (3) is nested in that described two arms (2) are inner, and four arms (4) are nested in that described three arms (3) are inner, and five arms (5) are nested in described four
Arm (4) is inner, and it is inner that six arms (6) are nested in described five arms (5), it is characterized in that：Double telescoping cylinders (7) are nested in described six arms (6)
In, described double telescoping cylinders (7) it is inner one stretch the head of cylinder rod head (7.1) and the afterbody of described large arm (1) is hinged, it is described
Double telescoping cylinders (7) it is inner one stretch the head of cylinder cylinder head (7.2) and the afterbody of described two arms (2) is hinged, described double telescoping cylinders
(7) two stretch the head of cylinder rod head (7.3) and described one head for stretching cylinder cylinder head (7.2) is fixedly connected, and described is double flexible
The two of cylinder (7) stretch the head of cylinder cylinder head (7.4) and described three arms (3) are hinged two stretches in the afterbodys of described three arms (3)
The arm hinge (3.3) of cylinder three, described two afterbodys for stretching cylinder cylinder head (7.4) are provided with four arms and stretch out pulley (7.6) and the contracting of the one or six arm
Return pulley (7.7)；The afterbody that described one stretches cylinder cylinder head (7.2) stretches cylinder fixing end (7.5) provided with one；Described two arms (2)
Afterbody is provided with two arm tail fixing ends (2.1), and the afterbody of described three arms (3) is provided with three arm tail fixing ends (3.1) and four arms are retracted
Pulley (3.2)；The afterbody of described four arms (4) is provided with four arm tail fixing ends three (4.1), the two or six arm retraction pulley (4.2), four
Arm tail fixing end one (4.3), four arm tail fixing ends two (4.4) and four arm tail fixing ends four (4.5), the head of described four arms (4)
Portion is provided with four arm head truckles (4.6) and the big pulley of four arm heads (4.7)；One end of four arms stretching steel wire rope (10) is fixed on described
Four arm tail fixing ends two (4.4) on, the other end, which around described four arms stretches out pulley (7.6) and is fixed on two described arm tails, to be consolidated
On fixed end (2.1)；Four described arm retraction steel wire rope (11) one end are fixed on described one and stretch cylinder fixing end (7.5), the other end
It is fixed on around four described arm retraction pulleys (3.2) in four described arm tail fixing ends one (4.3)；Described five arms (5)
Afterbody is provided with five arm wheels, and the heads of described five arms (5) is provided with five arm head truckles (5.2) and the big pulley of five arm heads (5.3), and five
Arm stretches out steel wire rope (8) one end and is fixed in three described arm tail fixing ends (3.1), and the other end bypasses the described big cunning of four arm heads
Wheel (4.7), five arm wheels and four arm head truckles (4.6) are fixed in three arm tail fixing ends (3.1) described in another again；It is described
The afterbodys of six arms (6) be provided with six arm wheels, the head of described six arms (6) is provided with six arm head fixing ends (6.2), and six arms stretch out steel
One end of cord (9) is fixed in four described arm tail fixing ends three (4.1), and the other end bypasses the described big pulley of five arm heads
(5.3), six arm wheels and five arm head truckles (5.2) are fixed in four arm tail fixing ends three (4.1) described in another, the contracting of six arms
The one end for returning steel wire rope (12) is fixed in six described arm head fixing ends (6.2), and the other end contracts around the two or six described arm
Return pulley (4.2) and the one or six arm retraction pulley (7.7) is fixed in four described arm tail fixing ends four (4.5).
2. the joint arm sequential telescopic arm of twin-tub six according to claim 1, it is characterized in that：Five described arm wheels are five arms half
Moon (5.1), the moon of five arm half (5.1) are welded on five arm tail tops.
3. the joint arm sequential telescopic arm of twin-tub six according to claim 1 or 2, it is characterized in that：Six described arm wheels are six
The moon of arm half (6.1), the moon of six arm half (6.1) are welded on six arm tail tops.
4. the joint arm sequential telescopic arm of twin-tub six according to claim 1 or 2, it is characterized in that：Described double telescoping cylinders (7)
Stretch for two-tank method telescopic oil cylinder or first cylinder and stretch the two sequential telescopic oil cylinders for stretching cylinder again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611232244.8A CN106744387B (en) | 2016-12-28 | 2016-12-28 | A kind of joint arm sequential telescopic arm of twin-tub six |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611232244.8A CN106744387B (en) | 2016-12-28 | 2016-12-28 | A kind of joint arm sequential telescopic arm of twin-tub six |
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| CN106744387A CN106744387A (en) | 2017-05-31 |
| CN106744387B true CN106744387B (en) | 2018-01-02 |
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Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4133411A (en) * | 1977-02-11 | 1979-01-09 | Chamberlain Manufacturing Corporation | Extensible boom |
| JP4283385B2 (en) * | 1999-07-21 | 2009-06-24 | 株式会社タダノ | Simultaneous telescopic mechanism for N-stage telescopic boom |
| CN102086003B (en) * | 2011-03-01 | 2013-01-02 | 徐州徐工随车起重机有限公司 | Double-cylinder cable arm expansion device of large-tonnage straight arm lorry-mounted crane |
| CN202465132U (en) * | 2011-12-29 | 2012-10-03 | 徐州徐工随车起重机有限公司 | Seven-section arm body expanding and retracting system |
| CN202481966U (en) * | 2012-03-10 | 2012-10-10 | 安徽柳工起重机有限公司 | Suspension arm of crane |
| CN204138216U (en) * | 2014-08-29 | 2015-02-04 | 四川长江工程起重机有限责任公司 | The boom telescoping device of car hosit |
| CN105084231B (en) * | 2015-07-02 | 2017-04-05 | 北汽福田汽车股份有限公司 | Telescopic boom device and engineering machinery |
| CN206288880U (en) * | 2016-12-28 | 2017-06-30 | 山河智能装备股份有限公司 | A kind of joint arm sequential telescopic arm of twin-tub six |
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2016
- 2016-12-28 CN CN201611232244.8A patent/CN106744387B/en active Active
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Effective date of registration: 20220907 Address after: 410100 Shanhe intelligent industrial city, 1335 liangtang East Road, Changsha Economic and Technological Development Zone, Changsha City, Hunan Province Patentee after: SHANHE INTELLIGENT SPECIAL EQUIPMENT CO.,LTD. Address before: 410100 Shanhe intelligent industrial park, No. 16, Lixiang Middle Road, Changsha Economic and Technological Development Zone, Changsha City, Hunan Province Patentee before: Sunward Intelligent Equipment Co.,Ltd. |