CN2490141Y - Expansion device for hoist - Google Patents
Expansion device for hoist Download PDFInfo
- Publication number
- CN2490141Y CN2490141Y CN 01245083 CN01245083U CN2490141Y CN 2490141 Y CN2490141 Y CN 2490141Y CN 01245083 CN01245083 CN 01245083 CN 01245083 U CN01245083 U CN 01245083U CN 2490141 Y CN2490141 Y CN 2490141Y
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- CN
- China
- Prior art keywords
- utility
- model
- flexible
- oil cylinder
- arm
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a lifting car flexible device which comprises a flexible arm; a flexible oil cylinder is provided between the first part and the secondary part of the flexible arm; a plate type chain and supporting revolve are provided between the arms. The plate type chain has a big carrying capability, a small deformation after stressing and is easy to be adjusted. The utility model moves steadily and has a good beeline degree, and will not produce the left and right swing, up and down shaking or death blocking and breaking phenomena; the utility model can ensure the even of the stress of the flexible arm and is steady in the moving process. The utility model can realize the synchronous flexible of a plurality of arms and the flexible oil cylinder has a small load; the stressing status of the flexible arm is rational; the utility model reduces the operating cost and has less maintaining times, low repairing cost and high safety during the normal working, and the structure is easy to be realized. The utility model can be used as the flexible device for the crane.
Description
Technical field
The utility model relates to the retractor device on a kind of sky lift.
Background technology
Known sky lift retractor device comprises telescopic boom, is connected with telescopic oil cylinder between the head joint of telescopic boom and the partial node, between the joint arm steel rope and slide block is installed.The steel rope stress deformation is bigger, and poor rigidity is difficult for adjusting; With the difference of predetermincd tension, the elongation difference of steel rope causes each steel rope strained condition different, and the inner tensile force of each steel rope is inconsistent, easily causes beat, the shake of telescopic boom when flexible; If when wherein having steel cable disconnected thigh or damage to occur, remaining steel rope also must be changed simultaneously, easily causes waste; If lubricated bad, steel rope abrasion is big, fragile, and be prone to steel rope stuck, by phenomenons such as piece joint arm squeeze off.Adopt slide block to be connected between arm and arm, under the situation of single oil cylinder, it is very big that the friction between slide block and arm will become, and intensity and the rigidity that saves arm is made a big impact, and increased the workload of telescopic oil cylinder.
Summary of the invention
The purpose of this utility model is that a kind of sky lift retractor device will be provided, and this retractor device is difficult for beat, shake when flexible, and the workload of telescopic oil cylinder is little, and use cost is low.
The purpose of this utility model is achieved in that this sky lift retractor device comprises telescopic boom, is connected with telescopic oil cylinder between the head joint of telescopic boom and the partial node, between the joint arm leaf chain and carrying roller is installed.
Between the joint arm of the present utility model leaf chain and carrying roller are installed, steadily flexible.Can realize the synchronization telescope of single oil cylinder, the load of telescopic oil cylinder is little, and it is reasonable that the strained condition of telescopic boom more becomes.Reduced the car load operating cost, in the car load normal work period, maintenance times is few, service expenditure reduces greatly, and safety improves greatly, and structure is easy to realize.The retractor device that can be used as on the sky lift uses.
Below in conjunction with the drawings and the specific embodiments the utility model is elaborated.
Description of drawings
Accompanying drawing is a specific embodiment constructional drawing of the present utility model.
Among the figure 1. the retraction chains, 2. drawing chain, 3. drawing chain, 4. carrying roller, 5. adjustable carrying roller, 6. the retraction chain, 7. the retraction chain, 8. drawing chain, 9. telescopic oil cylinder, 10. five the joint arms, 11. 4 the joint arms, 12. 3 the joint arms, 13. 2 the joint arms, 14. 1 the joint arms.
The specific embodiment
In above-mentioned accompanying drawing, the head of telescopic boom joint and partial node promptly between a joint arm 14 and the two joint arms 13, are connected with telescopic oil cylinder 9.Between the joint arm, promptly between two joint arms 13 and three joint arms 12, three joint arms 12 and four joint arms 11, four joint arms 11 and the five joint arms 10, leaf chain and carrying roller 4 are installed.Leaf chain is walked around carrying roller 4.Leaf chain comprises retraction chain 1, drawing chain 2, drawing chain 3, retraction chain 6, retraction chain 7, drawing chain 8.
When stretching out, two joint arms 13 stretch out under the effect of oil cylinder 9, and the drawing chain 8 three joint arms 12 that stretch, the drawing chain 2 four joint arms 11 that stretch, the drawing chain 3 five joint arms 10 that stretch are realized stretching out synchronously; During withdrawal, two joint arms, 13 withdrawals under the effect of oil cylinder 9, retraction chain 6 acts on three joint arms 12, makes its withdrawal, and retraction chain 7 acts on four joint arms 11, makes its withdrawal, and retraction chain 1 acts on five joint arms 10, makes its withdrawal, realizes withdrawal synchronously.
Retractor device adopts leaf chain, and load-carrying capacity is big, and the distortion of stressed back is little, easily adjusts, and adjusts in limited scope and can meet the demands.Motion is steady, straightness accuracy is good, can not produce phenomenons such as deflecting, rock up and down, be stuck or squeeze off, has guaranteed the telescopic boom stress equalization, and motion process is steady, has guaranteed the stationarity of car load work.Leaf chain is arranged in the last lower plane of telescopic boom, and simple in structure, easy realization helps multilayer nest and arranges, realizes the function of the synchronization telescope of the effect of single-stage oil cylinder, single oil cylinder, greatly reduces cost.Less demanding to lubricating condition, leaf chain by after the technical requirements processing, in use need not lubricate when assembling substantially.Adopt automatically regulating formula carrying roller as connection mode between arm and arm, the change cliding friction is friction of rolling, has reduced the friction force of telescopic boom in motion process widely.
Claims (1)
1. sky lift retractor device, this sky lift retractor device comprises telescopic boom, is connected with telescopic oil cylinder between the head joint of telescopic boom and the partial node, it is characterized in that saving leaf chain and carrying roller are installed between the arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01245083 CN2490141Y (en) | 2001-07-25 | 2001-07-25 | Expansion device for hoist |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01245083 CN2490141Y (en) | 2001-07-25 | 2001-07-25 | Expansion device for hoist |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2490141Y true CN2490141Y (en) | 2002-05-08 |
Family
ID=33656387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01245083 Expired - Fee Related CN2490141Y (en) | 2001-07-25 | 2001-07-25 | Expansion device for hoist |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2490141Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101585491B (en) * | 2009-06-17 | 2011-04-13 | 三一汽车制造有限公司 | Automobile crane and device with multiple sections of telescopic jibs thereof |
-
2001
- 2001-07-25 CN CN 01245083 patent/CN2490141Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101585491B (en) * | 2009-06-17 | 2011-04-13 | 三一汽车制造有限公司 | Automobile crane and device with multiple sections of telescopic jibs thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20090227 Address after: No. 165 Copper Road, Jiangsu, Xuzhou Province, China: 221004 Patentee after: Xuzhou Heavy Machinery Co., Ltd. Address before: Li Qiang, Research Institute of Xuzhou heavy machinery plant, No. 165 copper hill road, Jiangsu, Xuzhou 221004, China Patentee before: Xuzhou Heavy Machinery Plant |
|
| ASS | Succession or assignment of patent right |
Owner name: XUZHOU HEACY MACHINE CO., LTD. Free format text: FORMER OWNER: XUZHOU HEACY MACHINERY PLANT Effective date: 20090227 |