CN204958243U - Sections two, arm telescopic machanism - Google Patents
Sections two, arm telescopic machanism Download PDFInfo
- Publication number
- CN204958243U CN204958243U CN201520715355.9U CN201520715355U CN204958243U CN 204958243 U CN204958243 U CN 204958243U CN 201520715355 U CN201520715355 U CN 201520715355U CN 204958243 U CN204958243 U CN 204958243U
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- CN
- China
- Prior art keywords
- pulley
- arm
- cylinder
- cylinder barrel
- chain
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- Expired - Fee Related
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Abstract
The utility model discloses a lift the sections two, arm telescopic machanism of high type fire engine, mobile crane tool equal phase pass machinery, including basic arm and two sections arms, be provided with the hydro -cylinder in an arm section of thick bamboo, the tailpiece of the piston rod head of hydro -cylinder is connected with basic arm, the utility model discloses cylinder near -end and distal end at the hydro -cylinder set up pulley I and pulley II respectively, and the distal end at basic arm, I back reconnection on the other end pile warp pulley to the distal end of two sections arms are connected to I one end on the chain, the near -end at basic arm, II back reconnections on the other end pile warp pulley to the near -end of two sections arms are connected to the one end of chain II. Through application movable pulley theory of operation, a new flexible arm structure is provided. Contrast prior art can be reduced by half the hydro -cylinder quality to the stability that makes the car improves, and the complete machine performance is strengthened. Make flexible arm operating speed double simultaneously, improved work efficiency, practiced thrift manufacturing cost.
Description
one, technical field
The utility model relates to the telescoping mechanism of the associated mechanical such as high lifting kind fire extinguishing tanker, automobile crane machinery.
two, background technology
Below 20 meters, the telescopic boom of the correlation type vehicle such as high lifting kind fire extinguishing tanker, automobile crane machinery is all much two joint arm telescoping mechanisms at present.Two joint arm telescoping mechanisms generally all adopt cylinder piston motion to drive the motion of telescopic boom, and piston rod and the cylinder barrel of oil cylinder are fixedly connected with basic arm and the two joint arms of telescopic boom respectively.The stroke of telescopic boom is only equivalent to the stroke of oil cylinder, the stroke wanting telescopic boom is enough large, the oil cylinder of larger row journey will be had, and the deadweight of Long Distances oil cylinder and volume ratio larger, stretching structure of cranking arm more than 30 meters just seems that weight is bigger than normal, stability reduces, and causes chassis, the increase of supporting leg span, arrangement difficulty; And then limit the operating range of the type car, reduce overall performance.
three, summary of the invention
The purpose of this utility model is to provide a kind of two joint arm telescoping mechanisms, to solve the deficiencies in the prior art, reduces stroke and the deadweight of oil cylinder, and then reaches raising telescopic boom work speed, increase work efficiency.
The technical solution of the utility model is: two joint arm telescoping mechanisms comprise basic arm and two joint arms, oil cylinder is provided with in arm cylinder, the piston rod end of oil cylinder is connected with basic arm, the utility model arranges pulley I and pulley II respectively at the cylinder barrel near-end of oil cylinder and far-end, chain I one end is connected to the far-end of basic arm, is connected to the far-end of two joint arms after other end pile warp pulley I; One end of chain II is connected to the near-end of basic arm, is connected to the near-end of two joint arms after other end pile warp pulley II.
In work, when oil cylinder stretches out, cylinder barrel drives two pulleys to travel forward, and chain II pulls two joint arms to travel forward under pulley II drives; When oil cylinder is retracted, cylinder barrel drives two pulleys to move backward, and chain I pulls two joint arms to after contraction under pulley I drives.Because chain I and chain II have one end to be fixed on basic arm, be connected on two joint arms after being all pile warp pulley, so the move distance of chain movable end (fixed ends on two joint arms) is two times of pulley motion distance, namely the stroke of two joint arms is two times of oil cylinder stroke.The utility model by cylinder movement, drives two pulley motion, makes two pulleys be fixed on cylinder tube achieve the function of movable pulley, makes telescopic boom stroke reach 2 times of oil cylinder stroke.In other words, when telescopic boom stroke is certain, the stroke of oil cylinder can be made to reduce by half, contrast prior art, can reduce by half oil cylinder quality, thus the stability of car is improved, and overall performance is strengthened.Make telescopic boom work speed double simultaneously, improve work efficiency.The utility model compared with prior art decreases oil cylinder stroke and deadweight under the constant prerequisite of telescopic boom stroke; By using movable pulley principle, improve telescopic boom work speed; Improve the stability of complete machine.
four, accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the schematic diagram arranging two groups of pulleys on cylinder tube of the present utility model.
five, detailed description of the invention
Two joint arm telescoping mechanisms are the telescopic booms being connected with square tube shape on car body, comprise basic arm 1 and two joint arms 2, oil cylinder is provided with in the arm cylinder of telescopic boom, piston rod 3 termination of oil cylinder is fixedly connected with basic arm 1 near-end, at cylinder barrel 4 near-end of oil cylinder and far-end, pulley I 5 and pulley II 6 are set respectively, chain I 7 one end is connected to the far-end of basic arm 1, is connected to the far-end of two joint arms 2 after other end pile warp pulley I 5; One end of chain II 8 is connected to the near-end of basic arm 1, is connected to the near-end of two joint arms 2 after other end pile warp pulley II 6.The near-end of the said telescopic boom of the utility model and far-end take car body as benchmark, be near-end, and the arm end place of stretching out outside car body is far-end near the arm root place of car body.
The utility model, by changing cylinder structure, the cylinder barrel 4 of oil cylinder arranges two pulleys; Piston rod 3 termination is fixedly connected with the near-end of basic arm 1.Have pulley mount pad at cylinder barrel 4 two ends, at cylinder barrel 4 near-end welding axle bed 9, for installing pulley I 5, axle bed 9 has symmetrical spindle nose in cylinder barrel 4 both sides, and pulley I 5 is that two symmetrical pulleys are arranged on cylinder barrel 4 both sides, and corresponding chain I 7 is also two; Cylinder barrel 4 far-end, because belonging to free end in jib, all needs restriction up and down, therefore arranges the spacing small sheave of four direction 10 in cylinder barrel 4 distal tip surrounding, ensures that cylinder barrel 4 is substantially in arm cylinder midway location in whole cylinder movement process.Pulley mount pad 11 is provided with in the distal tip of cylinder barrel 4, pulley mount pad 11 welds three pieces of gussets by base plate, gusset is installed with axis form, the bearing of two pulleys II 6 is fixed on the axle of pulley mount pad 11, the base plate of pulley mount pad 11 is fixed in the distal tip of cylinder barrel 4, and corresponding chain II 8 is also two.
Claims (4)
1. a joint arm telescoping mechanism, comprise basic arm (1) and two joints arm (2), oil cylinder is provided with in arm cylinder, piston rod (3) termination of oil cylinder is connected with basic arm (1), it is characterized in that: at cylinder barrel (4) near-end of oil cylinder and far-end, pulley I (5) and pulley II (6) are set respectively, chain I (7) one end is connected to the far-end of basic arm (1), is connected to the far-end of two joint arms (2) after other end pile warp pulley I (5); One end of chain II (8) is connected to the near-end of basic arm (1), is connected to the near-end of two joint arms (2) after other end pile warp pulley II (6).
2. two joint arm telescoping mechanisms according to claim 1, it is characterized in that: at cylinder barrel (4) near-end welding axle bed (9), for installing pulley I (5), axle bed (9) has symmetrical spindle nose in cylinder barrel (4) both sides, pulley I (5) is that two symmetrical pulleys are arranged on cylinder barrel (4) both sides, and corresponding chain I (7) is also two.
3. two joint arm telescoping mechanisms according to claim 1, is characterized in that: arrange the spacing small sheave of four direction (10) in cylinder barrel (4) distal tip surrounding, ensure that cylinder barrel (4) is substantially in arm cylinder midway location in whole cylinder movement process.
4. two joint arm telescoping mechanisms according to claim 1, it is characterized in that: be provided with pulley mount pad (11) in the distal tip of cylinder barrel (4), pulley mount pad (11) welds three pieces of gussets by base plate, three pieces of gussets is installed with axis and forms; The bearing of two pulleys II (6) is fixed on the axle of pulley mount pad (11), and the base plate of pulley mount pad (11) is fixed in the distal tip of cylinder barrel (4), and corresponding chain II (8) is also two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520715355.9U CN204958243U (en) | 2015-09-16 | 2015-09-16 | Sections two, arm telescopic machanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520715355.9U CN204958243U (en) | 2015-09-16 | 2015-09-16 | Sections two, arm telescopic machanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204958243U true CN204958243U (en) | 2016-01-13 |
Family
ID=55053323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520715355.9U Expired - Fee Related CN204958243U (en) | 2015-09-16 | 2015-09-16 | Sections two, arm telescopic machanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204958243U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114606894A (en) * | 2022-04-14 | 2022-06-10 | 徐工湖北环保科技股份有限公司 | Novel sliding mechanism |
-
2015
- 2015-09-16 CN CN201520715355.9U patent/CN204958243U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114606894A (en) * | 2022-04-14 | 2022-06-10 | 徐工湖北环保科技股份有限公司 | Novel sliding mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Two-section-boom telescoping mechanism Effective date of registration: 20170809 Granted publication date: 20160113 Pledgee: Shantui Construction Machinery Co., Ltd. Pledgor: Shantui Fuqi Machinery Co., Ltd. Registration number: 2017210000016 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160113 Termination date: 20180916 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |