CN102381642B - Synchronous telescopic device - Google Patents
Synchronous telescopic device Download PDFInfo
- Publication number
- CN102381642B CN102381642B CN 201110387241 CN201110387241A CN102381642B CN 102381642 B CN102381642 B CN 102381642B CN 201110387241 CN201110387241 CN 201110387241 CN 201110387241 A CN201110387241 A CN 201110387241A CN 102381642 B CN102381642 B CN 102381642B
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- fixed
- telescopic boom
- oil cylinder
- arm
- telescopic
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Abstract
The invention relates to a synchronous telescopic device which comprises an arm support assembly, an oil cylinder assembly, a steel wire rope guiding device and a rope row, and is characterized in that the arm support assembly comprises a fixed arm, a first telescopic arm and a second telescopic arm; the oil cylinder assembly comprises an oil cylinder, a fixed support I, a support plate, a bearing plate and bearing wheels; the steel wire rope guiding device comprises a small left guide wheel, a small right guiding wheel and a large guiding wheel, which are parallel to one another and symmetrically mounted; the rope row comprises steel wire ropes, a fastening adjusting device and a fixed support II; two ends of each steel wire rope are connected with the fixed support II through the fastening adjusting device; and the two steel wire ropes are fastened and connected with a side plate of the second telescopic arm through the fixed support II. The synchronous telescopic device has the advantages of simple structure, high stiffness, good synchronous retractility, and high reliability.
Description
Technical field
The present invention relates to a kind of retractor device, the especially a kind of telescopic jib of the construction machinery and equipments such as car hosit, aerial platform or synchronous telescopic device of telescopic outrigger of being applicable to.
Background technology
For increasing scope of work and job safety stability, the work jib of construction machinery and equipment and supporting leg often adopt the single oil cylinder (supporting leg) of telescopic structure.Mainly there are following deficiency in present flexible technology and device: (1) each telescopic boom is by a hydraulic oil cylinder driving, so that complex structure is difficult to synchronization telescope, efficient is low; (2) adopt oil cylinder to add steel rope row's structure, can cause the cross section between telescopic boom to differ greatly, stretching structure is complicated, and jib weight is large, rigidity is little; (3) adopt three joint support leg retractor devices of two sleeve telescopic oil cylinders controls, can only sequential telescopic, and the complex structure of two sleeve telescopic oil cylinders, reliability of service is low.
Summary of the invention
The objective of the invention is to overcome the weak point in the prior art, a kind of synchronous telescopic device is provided, this apparatus structure is simple, and rigidity is large, and synchronization telescope is good, and reliability is high.
Technical scheme of the present invention is: a kind of synchronous telescopic device comprises jib assembly, hydraulic cylinder assembly, wire line guide and rope row.It is characterized in that: described jib assembly comprises fixed arm, the first telescopic boom and the second telescopic boom, the cross section of each arm is is processed into identical polygon as required, wherein the second telescopic boom slides among the first telescopic boom, the first telescopic boom slides among the fixed arm, be fixed with two nylon slide block III in the right-hand member inside of fixed arm, left end external stability at the first telescopic boom has four nylon slide block I, be fixed with two nylon slide block IV in the right-hand member inside of the first telescopic boom, in the left end external stability of the second telescopic boom two nylon slide block II arranged.Hydraulic cylinder assembly comprises oil cylinder, fixed bearing I, support plate, back plate and bogie wheel, oil cylinder is double acting hydraulic cylinder, the left end of oil cylinder is hinged and connected by the side plate of two minor axises and the first telescopic boom, the right-hand member middle part of oil cylinder is fixed with back plate, the piston rod end is fixed with the fixed bearing I, support plate is bending steel plate, and the left end of support plate is fixed on the fixed bearing I, and the supporting skidding is contained on the wheel shaft that is fixed on the back plate bottom.Described wire line guide comprises left small sheave, right small sheave and large pulley, each pulley is two, the symmetrical installation is parallel to each other, two left small sheaves are slided respectively and are contained on the hinged minor axis of cylinder tube left end both sides, two right small sheave cunnings are contained on the little axle that is fixed on the support plate right-hand member, and two large pulley cunnings are contained on the little axle that is fixed on back plate top.Described rope package enclosing wire rope, fastening adjustment device and fixed bearing II etc., steel rope has two, in parallel to each other around right small sheave, left small sheave and large pulley, the two ends of every steel rope all are connected with the fixed bearing II by the fastening adjustment device, and two steel ropes also link to each other with the side plate of the second telescopic boom is fastening by the fixed bearing II.
Beneficial effect: owing to adopt technique scheme, make this apparatus structure simple, rigidity is large, and synchronization telescope is good, and reliability is high.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples.
Fig. 1 is agent structure scheme drawing of the present invention.
Fig. 2 is the A-A section-drawing of Fig. 1.
Fig. 3 is the B-B section-drawing of Fig. 1.
Fig. 4 is the C-C section-drawing of Fig. 1.
Fig. 5 is the D-D section-drawing of Fig. 1.
Among the figure: 1-fastening adjustment device; The 2-support plate; The 3-fixed arm; 4-slide block I; 5-slide block II; 6-the first telescopic boom; 7-the second telescopic boom; The 8-steel rope; The 9-oil cylinder; 10-slide block III; 11-slide block IV; The 12-large pulley; The 13-bogie wheel; The 14-back plate; The right small sheave of 15-; 16-fixed bearing II; The left small sheave of 17-; 18-fixed bearing I.
The specific embodiment
As shown in Figure 1, the present invention includes jib assembly, hydraulic cylinder assembly, wire line guide and rope row.Described jib assembly comprises fixed arm (3), the first telescopic boom (6) and the second telescopic boom (7), the cross section of each arm is is processed into identical polygon as required, wherein the second telescopic boom (7) slides among the first telescopic boom (6), the first telescopic boom (6) slides among the fixed arm (3), be fixed with two nylon slide block III (10) in the right-hand member inside of fixed arm (3), left end external stability at the first telescopic boom (6) has four nylon slide block I (4), be fixed with two nylon slide block IV (11) in the right-hand member inside of the first telescopic boom (6), in the left end external stability of the second telescopic boom (7) two nylon slide block II (5) arranged.Hydraulic cylinder assembly comprises oil cylinder (9), fixed bearing I (18), support plate (2), back plate (14) and bogie wheel (13), oil cylinder (9) is double acting hydraulic cylinder, the left end of oil cylinder (9) is hinged and connected by the side plate of two minor axises and the first telescopic boom (6), the right-hand member middle part of oil cylinder (9) is fixed with back plate (14), the piston rod end is fixed with fixed bearing I (18), support plate (2) is bending steel plate, the left end of support plate (2) is fixed on the fixed bearing I (18), and bogie wheel (13) is sliding to be contained on the wheel shaft that is fixed on back plate (14) bottom.Described wire line guide comprises left small sheave (17), right small sheave (15) and large pulley (12), each pulley is two, the symmetrical installation is parallel to each other, two left small sheaves (17) are sliding being contained on the hinged minor axis of oil cylinder (9) cylinder barrel left end both sides respectively, two right small sheaves (15) are sliding to be contained on the little axle that is fixed on support plate (2) right-hand member, and two large pulleys (12) are sliding to be contained on the little axle that is fixed on back plate (14) top.Described rope package enclosing wire rope (8), fastening adjustment device (1) and fixed bearing II (16) etc., steel rope (8) has two, in parallel to each other around right small sheave (15), left small sheave (17) and large pulley (12), the two ends of every steel rope all are connected with fixed bearing II (16) by fastening adjustment device (1), and two steel ropes (8) are also by side plate fastening link to each other of fixed bearing II (16) with the second telescopic boom (7).
Claims (1)
1. a synchronous telescopic device comprises jib assembly, hydraulic cylinder assembly, wire line guide and rope row; It is characterized in that: described jib assembly comprises fixed arm, the first telescopic boom and the second telescopic boom, the cross section of each arm is is processed into identical polygon as required, wherein the second telescopic boom slides among the first telescopic boom, the first telescopic boom slides among the fixed arm, be fixed with two nylon slide block III in the right-hand member inside of fixed arm, left end external stability at the first telescopic boom has four nylon slide block I, be fixed with two nylon slide block IV in the right-hand member inside of the first telescopic boom, in the left end external stability of the second telescopic boom two nylon slide block II arranged; Hydraulic cylinder assembly comprises oil cylinder, fixed bearing I, support plate, back plate and bogie wheel, oil cylinder is double acting hydraulic cylinder, the left end of oil cylinder is hinged and connected by the side plate of two minor axises and the first telescopic boom, the right-hand member middle part of oil cylinder is fixed with back plate, the piston rod end is fixed with the fixed bearing I, support plate is bending steel plate, and the left end of support plate is fixed on the fixed bearing I, and the supporting skidding is contained on the wheel shaft that is fixed on the back plate bottom; Described wire line guide comprises left small sheave, right small sheave and large pulley, each pulley is two, the symmetrical installation is parallel to each other, two left small sheaves are slided respectively and are contained on the hinged minor axis of cylinder tube left end both sides, two right small sheave cunnings are contained on the little axle that is fixed on the support plate right-hand member, and two large pulley cunnings are contained on the little axle that is fixed on back plate top; Described rope package enclosing wire rope, fastening adjustment device and fixed bearing II, steel rope has two, in parallel to each other around right small sheave, left small sheave and large pulley, the two ends of every steel rope all are connected with the fixed bearing II by the fastening adjustment device, and two steel ropes also link to each other with the side plate of the second telescopic boom is fastening by the fixed bearing II.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110387241 CN102381642B (en) | 2011-11-29 | 2011-11-29 | Synchronous telescopic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110387241 CN102381642B (en) | 2011-11-29 | 2011-11-29 | Synchronous telescopic device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102381642A CN102381642A (en) | 2012-03-21 |
| CN102381642B true CN102381642B (en) | 2013-04-24 |
Family
ID=45821549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110387241 Expired - Fee Related CN102381642B (en) | 2011-11-29 | 2011-11-29 | Synchronous telescopic device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102381642B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016104653A1 (en) * | 2016-03-14 | 2017-09-14 | Schwing Gmbh | Double telescopic arch support |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102689846B (en) * | 2012-06-07 | 2015-05-13 | 徐州重型机械有限公司 | Rope row type telescopic boom mechanism and crane provided with same |
| CN102730579B (en) * | 2012-07-02 | 2015-05-20 | 中联重科股份有限公司 | Support and truck crane with support |
| CN102897148B (en) * | 2012-10-12 | 2015-10-14 | 三一汽车制造有限公司 | A kind of telescopic leg and construction machinery and equipment |
| CN103508336A (en) * | 2013-09-18 | 2014-01-15 | 国家电网公司 | Insulation arm for crane in electricity operation |
| CN103726518B (en) * | 2014-01-10 | 2015-11-04 | 徐工集团工程机械股份有限公司道路机械分公司 | A kind of multi-functional full landform hydraulic walking excavator |
| WO2015194268A1 (en) * | 2014-06-17 | 2015-12-23 | 株式会社タダノ | Extension and retraction device for telescopic boom |
| CN104743443A (en) * | 2014-07-26 | 2015-07-01 | 周红玉 | Telescopic boom |
| CN106006412A (en) * | 2016-06-06 | 2016-10-12 | 梁协铭 | Eight-section lazy arm for crane |
| CN106429903A (en) * | 2016-10-09 | 2017-02-22 | 四川宏华石油设备有限公司 | Extension device |
| CN106379823B (en) * | 2016-12-05 | 2017-11-07 | 太原重型机械集团工程技术研发有限公司 | Crane and its telescopic oil cylinder support meanss |
| CN106744371A (en) * | 2016-12-13 | 2017-05-31 | 刘国彬 | A kind of autocrane with secondary synchronization horizontal extension supporting leg |
| CN108568840A (en) * | 2017-03-13 | 2018-09-25 | 北京京东尚科信息技术有限公司 | Material sorting elevating mechanism and material Prospect of Robot Sorting System |
| CN116002543A (en) * | 2022-12-20 | 2023-04-25 | 徐州徐工随车起重机有限公司 | Single-cylinder synchronous telescoping device and crane |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5465855A (en) * | 1993-04-10 | 1995-11-14 | Fried. Krupp Ag Hoesch-Krupp | Telescoping crane arm |
| CN201214601Y (en) * | 2008-05-07 | 2009-04-01 | 长沙中联重工科技发展股份有限公司 | Main arm telescopic mechanism 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 |
| CN201530688U (en) * | 2009-11-21 | 2010-07-21 | 湖南山河智能机械股份有限公司 | Telescopic boom device |
| CN201850089U (en) * | 2010-10-15 | 2011-06-01 | 北京京城重工机械有限责任公司 | Five-knuckle arm telescopic mechanism for crane |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60242200A (en) * | 1984-05-14 | 1985-12-02 | 株式会社ジャパニック | Boom type lifting gear |
| JP2010037045A (en) * | 2008-08-05 | 2010-02-18 | Kobelco Cranes Co Ltd | Cylindrical structure |
-
2011
- 2011-11-29 CN CN 201110387241 patent/CN102381642B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5465855A (en) * | 1993-04-10 | 1995-11-14 | Fried. Krupp Ag Hoesch-Krupp | Telescoping crane arm |
| CN201214601Y (en) * | 2008-05-07 | 2009-04-01 | 长沙中联重工科技发展股份有限公司 | Main arm telescopic mechanism 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 |
| CN201530688U (en) * | 2009-11-21 | 2010-07-21 | 湖南山河智能机械股份有限公司 | Telescopic boom device |
| CN201850089U (en) * | 2010-10-15 | 2011-06-01 | 北京京城重工机械有限责任公司 | Five-knuckle arm telescopic mechanism for crane |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016104653A1 (en) * | 2016-03-14 | 2017-09-14 | Schwing Gmbh | Double telescopic arch support |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102381642A (en) | 2012-03-21 |
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Owner name: XUZHOU WOTU INVESTMENT MANAGEMENT CONSULTING CO., Free format text: FORMER OWNER: XUZHOU TIAND HEAVY-DUTY MACHINERY MANUFACTURING CO., LTD. Effective date: 20140312 |
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Free format text: CORRECT: ADDRESS; FROM: 221116 XUZHOU, JIANGSU PROVINCE TO: 221000 XUZHOU, JIANGSU PROVINCE |
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Effective date of registration: 20140312 Address after: 221000, Zhongshan North Road, Jiangsu, Xuzhou No. 8 to the international 1 -2-2204 Patentee after: Xuzhou fertile land investment management consulting Co., Ltd. Address before: 221116 No. 24, Mount Huangshan Road, Copper Mt. District, Jiangsu, Xuzhou Patentee before: Xuzhou Tiand Heavy-Duty Machinery Manufacturing Co., Ltd. |
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