EP2620335A1 - Structure de béquille de support, véhicule de pompe à béton et procédé d'assemblage de tuyau d'huile - Google Patents

Structure de béquille de support, véhicule de pompe à béton et procédé d'assemblage de tuyau d'huile Download PDF

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Publication number
EP2620335A1
EP2620335A1 EP11826354.0A EP11826354A EP2620335A1 EP 2620335 A1 EP2620335 A1 EP 2620335A1 EP 11826354 A EP11826354 A EP 11826354A EP 2620335 A1 EP2620335 A1 EP 2620335A1
Authority
EP
European Patent Office
Prior art keywords
plate
mounting
supporting leg
joints
section
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP11826354.0A
Other languages
German (de)
English (en)
Other versions
EP2620335A4 (fr
EP2620335B1 (fr
Inventor
Xiangying Wang
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hunan Zoomlion Special Vehicle Co Ltd
Zoomlion Heavy Industry Science and Technology Co Ltd
Original Assignee
Hunan Zoomlion Special Vehicle Co Ltd
Zoomlion Heavy Industry Science and Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hunan Zoomlion Special Vehicle Co Ltd, Zoomlion Heavy Industry Science and Technology Co Ltd filed Critical Hunan Zoomlion Special Vehicle Co Ltd
Publication of EP2620335A1 publication Critical patent/EP2620335A1/fr
Publication of EP2620335A4 publication Critical patent/EP2620335A4/fr
Application granted granted Critical
Publication of EP2620335B1 publication Critical patent/EP2620335B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • B66C23/72—Counterweights or supports for balancing lifting couples
    • B66C23/78—Supports, e.g. outriggers, for mobile cranes
    • B66C23/80—Supports, e.g. outriggers, for mobile cranes hydraulically actuated

Definitions

  • the present invention relates to a supporting leg structure, a truck mounted concrete pump and an oil tube assembling method.
  • a supporting leg structure (for instance, the supporting leg structure of a truck mounted concrete pump or a crane) comprises a box-shaped supporting leg.
  • One end of the box-shaped supporting leg is used to provide support.
  • the other end (typically called “tail") is used to connect for example a component of the truck body of the truck mounted concrete pump.
  • the tail of the box-shaped supporting leg comprises an upper cover plate, a lower cover plate, a side plate and a closing plate.
  • the closing plate is connected to the lower cover plate and the side plate so that the tail of the box-shaped supporting leg forms an opening.
  • the supporting leg structure also comprises a hydraulic pipeline.
  • the hydraulic pipeline typically comprises a pair of hard tubes and a pair of drag chain-clad flexible tubes, the hard tubes and flexible tubes are respectively arranged on the two sides of the box-shaped supporting leg. Further, the hydraulic pipeline also comprises a pair of joints used to connect the hard tubes and flexible tubes.
  • the hard tubes and the flexible tubes are all fixed on the lower cover plate.
  • the connection can be operated only via the opening of the tail.
  • the hard tubes are rigid components and their shapes and positions after bending are fixed, so the hard tubes are typically bent and fixed on the lower cover plate at first, then the joints are connected to the hard tubes and lastly the flexible tubes are connected to the joints. Owing to the limited space of the opening of the tail, it is very difficult to realize the above operation, and the operation of replacing oil tubes (hard tubes and flexible tubes) is even more difficult.
  • the accuracy of the connection between the joints and the hard tubes can hardly be guaranteed.
  • the drag chain may rock in the box-shaped supporting leg and affect the connection between the flexible tubes and the joints, resulting in loosening or shift of the connection, so that it is impossible to maintain connection accuracy. This may unfavorably affect the strength and service life of the joints.
  • the present invention provides a supporting leg structure comprising a box-shaped supporting leg.
  • the tail of the box-shaped supporting leg comprises a closing plate and an opening.
  • the supporting leg structure also comprises a hydraulic pipeline.
  • the hydraulic pipeline comprises hard tubes, drag chain-clad flexible tubes and joints.
  • the hard tubes and the flexible tubes are connected by the joints.
  • the supporting leg structure also comprises a fixing plate, a connecting plate and a mounting plate.
  • the fixing plate is disposed on the closing plate.
  • the mounting plate can be fixed on the fixing plate.
  • the connecting plate has a first plate section and a second plate section.
  • the plane of the first plate section intersects the plane of the second plate section.
  • the second plate section is adjustably connected to the mounting plate so that the first plate section can move farther from or closer to the closing plate.
  • the joints align with the hard tubes and are mounted on the first plate section.
  • the flexible tubes are mounted in alignment with the joints.
  • the first plate section has at least one first mounting slot.
  • the joints are mounted in the first mounting slot.
  • one of the second plate section and the mounting plate has at least one second mounting slot
  • the other of the second plate section and the mounting plate has at least one mounting hole corresponding to the at least one second mounting slot
  • fasteners adjustably connect the second plate section and the mounting plate via the second mounting slot and the mounting hole.
  • the mounting plate has a third plate section in parallel with the second plate section, and the mounting hole is disposed on the third plate section.
  • the third plate section is provided with a notch allowing the entry of an operating tool.
  • the first plate section and the second plate section are perpendicular to each other.
  • the drag chain is fixed on the second plate section.
  • corresponding fastening holes are provided on the fixing plate and the mounting plate, and fasteners connect the fixing plate and the mounting plate via the fastening holes.
  • the present invention also provides a truck mounted concrete pump, which comprises the supporting leg structure provided in the present invention.
  • the present invention also provides a method for assembling and installing the oil tubes in a supporting leg structure, wherein the supporting leg structure is the supporting leg structure provided in the present invention, the tail of the box-shaped supporting leg comprises an upper cover plate, a lower cover plate and side plates, the closing plate is connected to the side plate, the closing plate is connected to the upper cover plate or the lower cover plate so that the tail of the box-shaped supporting leg forms the opening, the hard tubes are fixed on the upper cover plate or the lower cover plate, and the method includes: disposing a fixing plate on the closing plate; mounting the joints on the first plate section in a space same as the space between the hard tubes; adjusting the relative positions of the second plate section and the mounting plate according to the distance between the hard tubes and the fixing plate so that the second plate section and the mounting plate are fixed via the fasteners and the mounting plate can extend to a position where it is fixed with the fixing plate; connecting the flexible tubes and the joints; putting a module comprising the flexible tubes, the drag chain, the joints, the connecting plate and the mounting plate into the
  • the hard tubes and the flexible tubes can be connected in an accurate and convenient manner, and the drag chain can be fixed in an appropriate way.
  • the installation operation at the opening of the tail only includes: connecting the hard tubes to the joints; and fixing the mounting plate on the fixing plate. The complexity of operation is reduced significantly. The space provided by the opening of the tail is large enough for the foregoing operation.
  • a supporting leg structure comprises a box-shaped supporting leg.
  • the tail of the box-shaped supporting leg comprises a closing plate 34 and an opening 35.
  • the supporting leg structure also comprises a hydraulic pipeline.
  • the hydraulic pipeline comprises hard tubes 41, joints 43 and flexible tubes 42a clad with a drag chain 42b.
  • the hard tubes 41 and the flexible tubes 42a are connected by the joints 43.
  • the supporting leg structure also comprises a fixing plate 50, a connecting plate 10 and a mounting plate 20.
  • the fixing plate 50 is disposed on the closing plate 34.
  • the mounting plate 20 can be fixed on the fixing plate 50.
  • the connecting plate 10 has a first plate section 11 and a second plate section 12. The plane of the first plate section 11 intersects the plane of the second plate section 12.
  • the second plate section 12 is adjustably connected to the mounting plate 20 so that the first plate section 11 can move farther from or closer to the closing plate 34.
  • the joints 43 align with the hard tubes 41 and are mounted on the first plate section 11.
  • the flexible tubes 42a are mounted in alignment with the joints 43.
  • FIG. 1 shows an embodiment of the supporting leg structure in the present invention.
  • the connecting plate 10 has intersected first plate section 11 and second plate section 12, the joints 43 are mounted on the first plate section 11, and the second plate section 12 is adjustably connected to the mounting plate 20, the joints 43 can be moved farther from or closer to the closing plate 34 by adjustable connection between the second plate section 12 and the mounting plate 20.
  • the hard tubes 41 are fixed to the tail of the box-shaped supporting leg, the relative positions of the joints 43 and the hard tubes 41 can be adjusted by moving the joints 43 farther from or closer to the closing plate 34, thereby realizing accurate alignment.
  • the first plate section 11 has at least one first mounting slot 11 a.
  • the joints 43 are mounted in the first mounting slot 11a. Therefore, on the one hand, the mounting positions of the joints 43 may be adjusted by the first mounting slot 11a, thereby the positions of the joints 43 may be easily adjusted according to the positions of a pair of hard tubes 41 and the arrangement direction of the said pair of hard tubes 41 as described below; on the other hand, the first mounting slot 11a can be moved farther from or closer to the closing plate 34 by adjusting the relative connecting positions of the second plate section 12 and the mounting plate 20.
  • connection between the connecting plate 10 and the mounting plate 20 and the connections between other parts and the connecting plate 10 can be adjusted in different planes, thus the mounting positions of the joints 43 are adjusted based on the particular positions of the hard tubes 41 to realize accurate connection.
  • the joints 43 may also be mounted in other appropriate positions of the first plate section 11 (for example, directly fixed to the top of the first plate section 11) as long as the positions of the joints 43 can be easily adjusted according to the positions of a pair of hard tubes 41 and the arrangement direction of the said pair of hard tubes 41.
  • the adjustable connection between the second plate section 12 and the mounting plate 20 may be realized by various appropriate methods.
  • the second plate section 12 and the mounting plate 20 may be adjusted to appropriate relative positions, and then the second plate section 12 and the mounting plate 20 are fixed with a fixture or a clamp.
  • the relative positions of the second plate section 12 and the mounting plate 20 can be freely adjusted (if needed) after the fixture or clamp is loosened.
  • one of the second plate section 12 and the mounting plate 20 has at least one second mounting slot 12a
  • the other of the second plate section 12 and the mounting plate 20 has at least one mounting hole 21a corresponding to the at least one second mounting slot 12a
  • fasteners 60 adjustably connect the second plate section 12 and the mounting plate 20 via the second mounting slot 12a and the mounting hole 21a.
  • the second plate section 12 has the second mounting slot 12a
  • the mounting plate 20 has the mounting hole 21a.
  • the mounting positions of the fasteners 60 can be adjusted via the second mounting slot 12a and the mounting hole 21a, thereby adjusting the relative positions of the second plate section 12 and the mounting plate 20.
  • the mounting plate 20 has a third plate section 21 in parallel with the second plate section 12, and the mounting hole 21a is disposed on the third plate section 21, thereby facilitating the alignment of the second mounting slot 12a and the mounting hole 21a.
  • the connecting plate 10, the mounting plate 20, and the joints 43 and the flexible tube kit 42 (the flexible tube kit 42 comprises the flexible tubes 42a and the drag chain 42b) mounted on the connecting plate 10 should be put into the box-shaped supporting leg all together so as to be connected to the hard tubes 42 and fixed inside the box-shaped supporting leg.
  • the third plate section 21 is disposed with a notch allowing the entry of an operating tool.
  • the hard tubes 41, the flexible tube kit 42 and the joints 43 may adopt common materials and structures in the art.
  • the hard tubes 41 are fixed on an appropriate fixing base (for example: on the upper cover plate 31 or the lower cover plate 32) via appropriate fasteners and are bent to an angle of approximately 90°at the tail to form connecting ends of the hard tubes 41.
  • the drag chain 42b covers the external surface of the flexible tubes 42a to form a flexible tube kit 42.
  • the flexible tube kit 42 is connected to the connecting end of the hard tubes 41 via one end of the flexible tubes 42a by using the joints 43 .
  • the joints 43 may be elbows made from a rigid material and bent to a roughly right angle.
  • the joints 43 are mounted in the first mounting slot 11a, one end of the joint 43 is connected to the connecting end of a hard tube 41 and the other end is connected to the one end of the flexible tube 42.
  • the hard tubes 41, joints 43 and flexible tubes 42 in the hydraulic pipeline are all in pairs and are for oil input and output respectively. Therefore, on the one hand, a pair of joints 43 can be mounted to appropriate positions of the first mounting slot 11a according to the horizontal (parallel with the second plate section 12) positions of a pair of hard tubes 41, i.e. the mounting positions of joints 43 can be adjusted along the lengthwise direction of the first mounting slot 11a, thereby the alignment between the joints 43 and the connecting ends of the hard tubes 41 can be guaranteed and further the accurate connection between the flexible tubes 41a and the hard tubes 41 can be guaranteed.
  • the relative positions of the second plate section 12 (i.e.: the connecting plate 10) and the mounting plate 20 may be adjusted according to the bending locations of the hard tubes 41, thereby ensuring the joints 43 and the flexible tube kit 42 can be adjusted along the lengthwise direction of the second mounting slot 12a and the connecting joints 43 and the flexible tubes 42a are suitable for accurate connection to the hard tubes 41.
  • first plate section 11 and the second plate section 12 are perpendicular to each other, thereby the connection between the connecting plate 10 and the mounting plate 20 and the connections between other parts and the connecting plate 10 can be adjusted in perpendicular planes, making the adjustments in different planes more independent without interference.
  • the second plate section 12 may be used as a fixing base of relevant components to make full use of the connecting plate 10 of the present invention, simplify the structure and save space.
  • the drag chain 42 may also be fixed on the second plate section 12 by other appropriate methods, for example by a clamp.
  • corresponding fastening holes 22 are disposed on the fixing plate 50 and the mounting plate 20, and the fasteners connect the fixing plate 50 and the mounting plate 20 via the fastening holes 22. Therefore, a module comprising the connecting plate 10, mounting plate 20, joints 43 and flexible tube kit 42 can be fixed to the closing plate 34 all together by the fasteners 60. It is understandable to those skilled in the art that the mounting plate 20 may also be fixed on the fixing plate 50 by other appropriate methods, for example by welding.
  • the tail of the box-shaped supporting leg comprises an upper cover plate 31, a lower cover plate 32 and side plates 33
  • the closing plate 34 is connected to the lower cover plate 32 or the side plate 33 so that the tail of the box-shaped supporting leg forms an opening 35
  • the hard tubes 41 are fixed on the upper cover plate 31 or the lower cover plate 32.
  • the upper cover plate 31, the lower cover plate 32, the side plate 33 and the closing plate 34 of the tail of the box-shaped supporting leg may adopt the common materials and structures in the art, thereby forming a box shape with an opening 35 in the tail, to facilitate assembling operation.
  • a truck mounted concrete pump is provided, wherein the truck mounted concrete pump has a supporting leg structure provided in the present invention.
  • the supporting leg structure provided in the present invention may also be used in other engineering machines or vehicles, such as cranes, etc.
  • a method for assembling the oil tubes in a supporting leg structure wherein the supporting leg structure is the supporting leg structure provided by the present invention.
  • the tail of the box-shaped supporting leg comprises an upper cover plate 31, a lower cover plate 32 and side plates 33, the closing plate 34 is connected to the side plate 33, and the closing plate 34 is connected to the upper cover plate 31 or the lower cover plate 32 (in the embodiment shown in the drawing, the closing plate 34 is connected to the lower cover plate 31) so that the tail of the box-shaped supporting leg forms the opening 35, and the hard tubes 41 are fixed on the upper cover plate 31 or the lower cover plate 32, the method includes:
  • the operation of connecting the flexible tubes 42a with the joints 43 and the operation of adjusting the second plate section 12 and the mounting plate 20 may be performed before the flexible tube kit 42, the connecting plate 10 and the mounting plate 20 are mounted into the box-shaped supporting leg.
  • the steps needing to be operated by a technician from the opening 35 only include the connection between the hard tubes 41 and the joints 43 and the fixation of the mounting plate 20 onto the fixing plate 50.
  • the operation of these two steps basically won't be restricted by the limited space of the opening 35 and the opening 35 is large enough to ensure the smooth operation of these two steps.
  • the method also includes fixing the drag chain 42b onto the connecting plate 10, thereby fixing the flexible tube kit 40 as an integrality onto the connecting plate 10.
  • the connecting plate 10 and the mounting plate 20 are mounted on the closing plate 34 via the fixing plate 50 as an integral module, so they may also be dismounted as an integrality.
  • the flexible tube kit 40, the connecting plate 10 and the mounting plate 20 can be integrally dismounted from the box-shaped supporting leg.
  • the first plate section 11 has at least one first mounting slot 11a.
  • One of the second plate section 12 and the mounting plate 20 has at least one second mounting slot 12a
  • the other of the second plate section 12 and the mounting plate 20 has at least one mounting hole 21a corresponding to the at least one second mounting slot 12a
  • fasteners 60 adjustably connect the second plate section 12 and the mounting plate 20 via the second mounting slot 12a and the mounting hole 21a. Therefore, the relative positions of the second plate section 12 and the mounting plate 20 can be adjusted easily only by aligning the mounting hole 21a to different positions of the second mounting slot 12a.
  • the first plate section 11 and the second plate section 12 may be perpendicular to each other so as to adapt to the hard tubes 41, which are bent to a right angle.
  • the method also includes: the step of fixing the drag chain 42b onto the connecting plate 10 via the fasteners and the fixing hole 12b before putting the module comprising the flexible tubes 42a, the drag chain 42b, the joints 43, the connecting plate 10 and the mounting plate 20 into the box-shaped supporting leg from the opening 35.
  • the closing plate 34 is connected to the lower cover plate 32, and the connecting plate 10 and the mounting plate 20 are positioned in a way as shown in FIG. 5 so that the mounting plate 20 is adjacent to the opening 35; in the case of the flexible tubes and the hard tubes are mounted onto the upper cover plate 31, the closing plate 34 is connected to the upper cover plate 31, and the connecting plate 10 and the mounting plate 20 may be positioned in a way of being upside down to the state as shown in FIG. 5 , i.e., the mounting plate 20 is still adjacent to the opening 35.
  • This structure on the one hand facilitates the assembling from the opening 35 and on the other hand helps fix the mounting plate 20 onto the fixing plate 50 disposed on the closing plate 34.
  • the second mounting slot 12a may be formed on the third plate section 21 and the mounting hole 21a may be formed on the second plate section 12.
  • the fixing mentioned herein may be realized by various appropriate methods, for example by welding and screw.
  • the closing plate 34 may be connected to the upper cover plate 31 and the side plate 33, or the closing plate 34 may be connected to the lower cover plate 32 and the side plate 33.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Supports For Pipes And Cables (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
  • Rehabilitation Tools (AREA)
  • Carriages For Children, Sleds, And Other Hand-Operated Vehicles (AREA)
  • Handcart (AREA)
EP11826354.0A 2010-09-25 2011-06-21 Structure de béquille de support, véhicule de pompe à béton et procédé d'assemblage de tuyau d'huile Not-in-force EP2620335B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN2010102930859A CN102039877B (zh) 2010-09-25 2010-09-25 支腿结构、混凝土泵车及油管装配方法
PCT/CN2011/076046 WO2012037827A1 (fr) 2010-09-25 2011-06-21 Structure de béquille de support, véhicule de pompe à béton et procédé d'assemblage de tuyau d'huile

Publications (3)

Publication Number Publication Date
EP2620335A1 true EP2620335A1 (fr) 2013-07-31
EP2620335A4 EP2620335A4 (fr) 2013-10-09
EP2620335B1 EP2620335B1 (fr) 2015-03-18

Family

ID=43906519

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11826354.0A Not-in-force EP2620335B1 (fr) 2010-09-25 2011-06-21 Structure de béquille de support, véhicule de pompe à béton et procédé d'assemblage de tuyau d'huile

Country Status (5)

Country Link
EP (1) EP2620335B1 (fr)
CN (1) CN102039877B (fr)
BR (1) BR112013006787A2 (fr)
RU (1) RU2013112723A (fr)
WO (1) WO2012037827A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104176017A (zh) * 2014-08-19 2014-12-03 安徽星马专用汽车有限公司 一种组合油缸、前支腿组件及混凝土泵车

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102039877B (zh) * 2010-09-25 2012-06-27 中联重科股份有限公司 支腿结构、混凝土泵车及油管装配方法
CN103043042A (zh) * 2012-12-05 2013-04-17 三一重工股份有限公司 一种配重支腿垫板及工程机械配重方法
CN104831933B (zh) * 2014-12-19 2017-09-15 北汽福田汽车股份有限公司 管路安装调整装置和管路安装方法
CN113356592B (zh) * 2021-06-28 2022-10-11 新兴栈(绵阳)建材有限公司 一种混凝土输送管终端防溅落装置

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US4809615A (en) * 1988-02-16 1989-03-07 Kershaw Manufacturing Co., Inc. Method and apparatus for re-railing working platforms
WO2000019039A1 (fr) * 1998-09-28 2000-04-06 Putzmeister Aktiengesellschaft Pompe radiale a beton
CN2582919Y (zh) * 2002-11-14 2003-10-29 三一重工股份有限公司 一种承重车辆用液压支腿
CN101648558A (zh) * 2008-08-11 2010-02-17 徐州重型机械有限公司 伸缩支腿及具有该支腿的伸缩支腿总成和混凝土泵车
CN102039877B (zh) * 2010-09-25 2012-06-27 中联重科股份有限公司 支腿结构、混凝土泵车及油管装配方法

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Title
No further relevant documents disclosed *
See also references of WO2012037827A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104176017A (zh) * 2014-08-19 2014-12-03 安徽星马专用汽车有限公司 一种组合油缸、前支腿组件及混凝土泵车

Also Published As

Publication number Publication date
CN102039877B (zh) 2012-06-27
EP2620335A4 (fr) 2013-10-09
EP2620335B1 (fr) 2015-03-18
CN102039877A (zh) 2011-05-04
RU2013112723A (ru) 2014-10-27
WO2012037827A1 (fr) 2012-03-29
BR112013006787A2 (pt) 2016-07-05

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