CN2878316Y - Inserted pin mechanism for crane - Google Patents
Inserted pin mechanism for crane Download PDFInfo
- Publication number
- CN2878316Y CN2878316Y CNU2006200498906U CN200620049890U CN2878316Y CN 2878316 Y CN2878316 Y CN 2878316Y CN U2006200498906 U CNU2006200498906 U CN U2006200498906U CN 200620049890 U CN200620049890 U CN 200620049890U CN 2878316 Y CN2878316 Y CN 2878316Y
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- CN
- China
- Prior art keywords
- pin
- insert
- pull
- pin mechanism
- normal
- 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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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
- B66C23/64—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
- B66C23/708—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic locking devices for telescopic jibs
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Abstract
The utility model discloses a plug device for cranes, comprising a plug device body fixed on an arm telescopic cylinder, wherein the bottom of the plug device body is provided with a frame, and two horizontal cylinders arranged at two ends of the plug device body respectively are provide with horizontal pins. Two vertical cylinders are disposed on the plug device body along a diagonal vertically, and tops of the vertical pins arranged in the vertical cylinders are connected with plug devices. The utility model has the advantages simple structure, low weight, high reliability and high working efficiency.
Description
Technical field
The utility model is mainly concerned with the hoisting crane field, refers in particular to a kind of hoisting crane insert-pull pin mechanism.
Background technology
Along with the develop rapidly of national economy, all trades and professions are on the increase for the demand of main equipment, and the technology and the manufacturing capacity of main equipment also reach its maturity on the other hand simultaneously.In the middle of the development of the national economy, usually need height with liftings to tens such as equipment or raw MAT'L meter even up to a hundred meters, at this moment just need use hoisting crane.For hoisting crane, telescopic boom is the critical component of wheel crane, directly influences the lifting performance of hoisting crane.Traditional telescopic boom technology can only be accomplished five joint principal arms at most, telescopic boom length generally is no more than 50 meters, and present arm technology has been accomplished more than the six joint arms, telescoping mechanism adopts the single cylinder telescoping mechanism, it is flexible successively that telescopic oil cylinder drives telescopic booms at different levels, thereby satisfy the needs of various operating modes, in this process, telescopic booms at different levels need motion according to a certain order, must lean on the work pin to be fixed when telescopic boom does not need to move.Existing insert-pull pin mechanism is limited by boom structure, on the layout of normal pin, be affected, oil cylinder often is subjected to the effect of offset loading force, owing to will overcome the harmful effect that offset loading force brings, will take to strengthen methods such as related components sectional dimension, the result who comprehensively gets off is that size is big, weight is big; Need the two-way oil circuit in addition in control, two road binders all pass through in telescopic oil cylinder, bring certain difficulty can for the processing of telescopic oil cylinder.
The utility model content
Technical problem to be solved in the utility model just is: at the technical matters that prior art exists, the utility model provides the hoisting crane insert-pull pin mechanism of a kind of simple in structure, in light weight, dependable performance, high efficiency.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of hoisting crane insert-pull pin mechanism, it is characterized in that: it comprises the insert-pull pin mechanism body that is fixed on the hoisting arm expansion oil cylinder, insert-pull pin mechanism body underframe is provided with frame, the two ends of described insert-pull pin mechanism body are respectively equipped with cross cylinder, are inserted with the horizontal pin pin in the cross cylinder; Described insert-pull pin mechanism body is provided with two vertical oil cylinders along diagonal line in vertical direction, is inserted with normal pin in this vertical oil cylinder, and the top of normal pin is connected with pin pulling out device.
Described pin pulling out device is the plate of pulling pin, and the top of two normal pins is fixed at the two ends of this plate of pulling pin, be provided with in the middle of it with arm on the mouth of pulling pin that pin matches of working.
The end of described horizontal pin is provided with horizontal pull back spring, and the bottom of normal pin is provided with vertical pull back spring.
Described insert-pull pin mechanism further comprises built-in mutual interlocking gear, and described mutual interlocking gear comprises locking bar, and this locking bar is inserted in the cross cylinder and can moves with normal pin.
Compared with prior art, advantage of the present utility model just is: the utility model is that a kind of installing space is little, spatial destribution convenient, is applicable to especially above hoisting crane and in light weight, the safe and reliable hoisting crane insert-pull pin mechanism of five joint arms of large-tonnage, each stress point is stressed evenly, control oil channel also has two-way, wherein one the tunnel be arranged in the telescopic oil cylinder the inside, another route external hose reel fuel feeding has been simplified the telescopic oil cylinder structure, has significantly improved its economy.
Description of drawings
Fig. 1 is the schematic top plan view of the utility model structure;
Fig. 2 is the A-A generalized section of Fig. 1;
Fig. 3 is the connection diagram of the utility model and telescopic oil cylinder;
Fig. 4 is the connection diagram of the utility model and arm;
Fig. 5 is the step scheme drawing one of the utility model application example;
Fig. 6 is the step scheme drawing two of the utility model application example;
Fig. 7 is the step scheme drawing three of the utility model application example;
Fig. 8 is the step scheme drawing four of the utility model application example;
Fig. 9 is the step scheme drawing five of the utility model application example;
Figure 10 is the step scheme drawing six of the utility model application example;
Figure 11 is the step scheme drawing seven of the utility model application example.
Marginal data
1, insert-pull pin mechanism body 2, cross cylinder
21, horizontal pin 22, horizontal pull back spring
3, sealing member 4, locking bar
5, pull pin plate 51, the mouth of pulling pin
6, vertical oil cylinder 61, normal pin
62, vertical pull back spring 7, support
8, work pin 91, basic arm
92, first segment telescopic boom 93, the second joint telescopic boom
94, the 3rd joint telescopic boom 95, the 4th joint telescopic boom
96, the 5th joint telescopic boom 10, telescopic oil cylinder
11, stroke detection slide block 12, fluting
13, slideway 14, bolt
The specific embodiment
Below with reference to the drawings and specific embodiments the utility model is described in further details.
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, a kind of hoisting crane of the present utility model insert-pull pin mechanism, it comprises the insert-pull pin mechanism body 1 that is fixed on the hoisting arm expansion oil cylinder 10, the bottom of this insert-pull pin mechanism body 1 is provided with support 7, in order to supporting insert-pull pin mechanism, avoid telescopic oil cylinder 10 to produce deep camber.The telescopic oil cylinder 10 of arm also is being provided with the flange face that matches with insert-pull pin mechanism with insert-pull pin mechanism bonded assembly one side, by bolt 14 the two is linked together.The two ends of insert-pull pin mechanism body 1 are respectively equipped with cross cylinder 2, be inserted with horizontal pin 21 in the cross cylinder 2, the afterbody of every joint telescopic boom is provided with the fluting 12 that adapts with telescopic oil cylinder 10, and have a slideway 13, purpose is to make telescopic oil cylinder 10 can drive insert-pull pin mechanism front and back in slideway 13 to slide, and guarantees certain kinematic accuracy; The vertical direction upper edge diagonal line of insert-pull pin mechanism body 1 is provided with two vertical oil cylinders 6, be inserted with normal pin 61 in this vertical oil cylinder 6, the top of normal pin 61 is connected with pin pulling out device, by the hydraulic fluid pressure controlling level pin 21 in cross cylinder 2 and the vertical oil cylinder 6 and the retraction of normal pin 61, wherein the pressure oil of the pressure oil of cross cylinder 2 and vertical oil cylinder 6 is respectively from telescopic oil cylinder 10 and outer flexible tube reel fuel feeding.End at horizontal pin 21 is provided with horizontal pull back spring 22, and the bottom of normal pin 61 is provided with vertical pull back spring 62.After system's release, horizontal pin 21 and normal pin 61 utilize the pull back spring 22 and 62 that is arranged on its rear to stretch out.Be provided with sealing member 3 between cross cylinder 2 and vertical oil cylinder 6 and the insert-pull pin mechanism body 1, be used for keeping the leak tightness of oil cylinder, guarantee its working stability.Insert-pull pin mechanism did not allow simultaneously horizontal pin 21 and normal pin 61 to be reduced to the position simultaneously in when work, therefore was provided with built-in mutual interlocking gear in-house, and this mutual interlocking gear comprises locking bar 4, and this locking bar 4 is inserted in the cross cylinder 2 and can be with normal pin 61 motions.After normal pin 61 was reduced to the position, locking bar 4 moved to horizontal pin 21 rear portions, pinned the motion of horizontal pin 21 to retracted orientation; In like manner, after horizontal pin 21 is reduced to the position, promptly move to locking bar 4 bottoms, pinned the motion of locking bar 4, thereby finished interlocking to retracted orientation.The movement position of horizontal pin 21 is detected, can embody the movement position of movement parts by stroke detection slide block 11, again by transferring it to electric signal near switch, supply control circuit.
Principle of work: referring to Fig. 5 to of the present utility model concrete Application Example shown in Figure 11, when being in initial condition, two cross cylinder 2 interior horizontal pins 21 are inserted in the afterbody of first segment telescopic boom 92 respectively from both direction, the work pin 8 that is fixed in pull pin plate 4 and the 5th joint telescopic boom 96 afterbodys on the vertical oil cylinder 6 breaks away from, and this moment, each work pin 8 was connected to integral body with arms at different levels.When telescopic oil cylinder 10 need carry out expanding-contracting action, according to optimal combination, the arm that should select to stretch successively saved, and stretches according to the principle of " from inside to outside ".At first, the horizontal pins 21 in two cross cylinders 2 are under the application force control of hydraulic oil in the withdrawal cross cylinder 2, and compression level pull back spring 22, and this moment, telescopic oil cylinder 10 broke away from fully with arm, and can slide along slideway 13 in the length of boom direction.Under the control of control system, make the afterbody of insert-pull pin mechanism kinematic to the five joint telescopic booms 96, lay down the hydraulic fluid pressure in the cross cylinder 2, thereby make horizontal pin 21 under the application force of horizontal pull back spring 22, to eject, be inserted in the fluting 12 of the 5th joint telescopic boom 96 afterbodys, this moment, telescopic oil cylinder 10 and the 5th joint telescopic boom 96 were connected as a single entity, and pin pulling out device just blocks on the work pin 8 of the 5th joint telescopic boom 96.Then, two vertical oil cylinder 6 interior normal pins 61 are withdrawn under the effect of hydraulic coupling, and compress vertical pull back spring 62, and thereby drive pin pulling out device the work pin 8 of the 5th joint telescopic boom 96 is pulled up, the 5th joint telescopic boom 96 is broken away from the 4th joint telescopic boom 95 be connected.This moment, telescopic oil cylinder 10 was started working, drive the 5th joint telescopic boom 96 and move to assigned address, after motion puts in place, with vertical oil cylinder 6 releases, normal pin 61 will rebound under the effect of vertical pull back spring 62, make the work pin 8 of the 5th joint telescopic boom 96 be inserted in the relevant position of the 4th joint telescopic boom 95, thereby two joint arms are connected.Controlling level pin 21 withdrawals this moment, telescopic oil cylinder 10 is broken away from the 5th joint telescopic boom 96 to be connected, drive insert-pull pin mechanism kinematic to the four joint telescopic booms 95 (or other arm joint) afterbody, stretch out horizontal pin 21 and connect with the respective arms joint, the telescopic process principle is identical once more.Otherwise the process of arm withdrawal does not repeat them here.
Claims (5)
1, a kind of hoisting crane insert-pull pin mechanism, it is characterized in that: it comprises the insert-pull pin mechanism body (1) that is fixed on the hoisting arm expansion oil cylinder (10), insert-pull pin mechanism body (1) (1) bottom is provided with frame (7), the two ends of described insert-pull pin mechanism body (1) are respectively equipped with cross cylinder (2), are inserted with horizontal pin (21) in the cross cylinder (2); Described insert-pull pin mechanism body (1) is provided with two vertical oil cylinders (6) along diagonal line in vertical direction, is inserted with normal pin (61) in this vertical oil cylinder (6), and the top of normal pin (61) is connected with pin pulling out device.
2, hoisting crane according to claim 1 insert-pull pin mechanism, it is characterized in that: described pin pulling out device is the plate of pulling pin (5), the top of two normal pins (61) is fixed at the two ends of this plate of pulling pin (5), be provided with in the middle of it with arm on pull pin mouthful (51) that pin (8) matches of working.
3, hoisting crane according to claim 1 and 2 insert-pull pin mechanism is characterized in that: the end of described horizontal pin (21) is provided with horizontal pull back spring (22), and the bottom of normal pin (61) is provided with vertical pull back spring (62).
4, hoisting crane according to claim 1 and 2 insert-pull pin mechanism, it is characterized in that: described insert-pull pin mechanism further comprises built-in mutual interlocking gear, described mutual interlocking gear comprises locking bar (4), and this locking bar (4) is inserted in the cross cylinder (2) and can moves with normal pin (61).
5, hoisting crane according to claim 3 insert-pull pin mechanism, it is characterized in that: described insert-pull pin mechanism further comprises built-in mutual interlocking gear, described mutual interlocking gear comprises locking bar (4), and this locking bar (4) is inserted in the cross cylinder (2) and can moves with normal pin (61).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200498906U CN2878316Y (en) | 2006-01-23 | 2006-01-23 | Inserted pin mechanism for crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200498906U CN2878316Y (en) | 2006-01-23 | 2006-01-23 | Inserted pin mechanism for crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2878316Y true CN2878316Y (en) | 2007-03-14 |
Family
ID=37860732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006200498906U Expired - Fee Related CN2878316Y (en) | 2006-01-23 | 2006-01-23 | Inserted pin mechanism for crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2878316Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101979307A (en) * | 2010-10-14 | 2011-02-23 | 三一汽车起重机械有限公司 | Single-cylinder pin plugging/unplugging mechanism for telescopic crane |
| WO2012083664A1 (en) * | 2010-12-22 | 2012-06-28 | 湖南三一智能控制设备有限公司 | Single-cylinder plug-pull-pin mechanism and telescopic boom type crane having the same |
| WO2012171251A1 (en) * | 2011-06-17 | 2012-12-20 | 长沙中联重工科技发展股份有限公司 | Stroke-adjustable oil cylinder assembly and insert-pull pin mechanism for position-fixing devices |
| CN103496640A (en) * | 2013-10-09 | 2014-01-08 | 天津山河装备开发有限公司 | Double-meshing interlocking type single-cylinder pin inserting and pulling mechanism for crane |
| CN105398978A (en) * | 2015-12-17 | 2016-03-16 | 太原重工股份有限公司 | Double-cylinder head pin inserting device |
-
2006
- 2006-01-23 CN CNU2006200498906U patent/CN2878316Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101979307A (en) * | 2010-10-14 | 2011-02-23 | 三一汽车起重机械有限公司 | Single-cylinder pin plugging/unplugging mechanism for telescopic crane |
| WO2012048589A1 (en) * | 2010-10-14 | 2012-04-19 | 湖南三一智能控制设备有限公司 | Single cylinder pluggable pin mechanism used in hoist of telescope arm |
| CN101979307B (en) * | 2010-10-14 | 2012-08-08 | 三一汽车起重机械有限公司 | Single-cylinder pin plugging/unplugging mechanism for telescopic crane |
| WO2012083664A1 (en) * | 2010-12-22 | 2012-06-28 | 湖南三一智能控制设备有限公司 | Single-cylinder plug-pull-pin mechanism and telescopic boom type crane having the same |
| WO2012171251A1 (en) * | 2011-06-17 | 2012-12-20 | 长沙中联重工科技发展股份有限公司 | Stroke-adjustable oil cylinder assembly and insert-pull pin mechanism for position-fixing devices |
| CN103496640A (en) * | 2013-10-09 | 2014-01-08 | 天津山河装备开发有限公司 | Double-meshing interlocking type single-cylinder pin inserting and pulling mechanism for crane |
| CN105398978A (en) * | 2015-12-17 | 2016-03-16 | 太原重工股份有限公司 | Double-cylinder head pin inserting device |
| CN105398978B (en) * | 2015-12-17 | 2017-03-22 | 太原重工股份有限公司 | Double-cylinder head pin inserting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 410013 No. 361 South silver basin, Hunan, Changsha Patentee after: Zoomlion Heavy Industry Science & Technology Development Co., Ltd. Address before: 410013 No. 361 South silver basin, Hunan, Changsha Patentee before: Chang Sha Zoomlion Heavy Industry Science & Technology Development Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070314 Termination date: 20150123 |
|
| EXPY | Termination of patent right or utility model |