CN209398660U - A kind of two-stage stretching supporting leg - Google Patents
A kind of two-stage stretching supporting leg Download PDFInfo
- Publication number
- CN209398660U CN209398660U CN201821938434.6U CN201821938434U CN209398660U CN 209398660 U CN209398660 U CN 209398660U CN 201821938434 U CN201821938434 U CN 201821938434U CN 209398660 U CN209398660 U CN 209398660U
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- leg
- level
- fixed
- retractive
- drag
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Abstract
The utility model relates to a kind of two-stage stretching supporting legs.Level-one Retractive leg and second level Retractive leg in fixed supporting leg are set；Driving device one end is fixed on fixed supporting leg, the other end is fixed on level-one Retractive leg；It is provided with drag-line of stretching one's legs, drag-line one end of stretching one's legs is fixed on fixed supporting leg, and drag-line of stretching one's legs is penetrated within the space formed to level-one Retractive leg and second level Retractive leg by pulley one and is finally fixed on second level Retractive leg；It is provided with contracting leg drag-line, contracting leg drag-line one end is fixed on fixed supporting leg, contracting leg drag-line is penetrated by pulley two to the space of fixed supporting leg and the formation of level-one Retractive leg, and the fixation pulley of contracting leg guy cable rounds level-one Retractive leg tail portion is finally connected to the fixation pulley two for being fixed on second level Retractive leg tail portion together.The utility model has the advantages that: 1) telescoping mechanism connection and reasonable arrangement, arrangement are simple；2) there is idler wheel below supporting leg, rub jitter problem when efficiently solving landing leg stretching.
Description
Technical field
The utility model relates to a kind of two-stage stretching supporting legs, are suitable among various engineering machinery.
Background technique
Existing market twin-stage landing leg stretching is mainly the following type, and one is double oil cylinders to drive level-one, second level respectively
Retractive leg is flexible, and another kind is telescopic oil cylinder+wirerope combined type, and telescopic oil cylinder drives level-one Retractive leg, passes through rope belt
Dynamic second level leg is flexible.
The flexible major defect of double oil cylinders is oil cylinder weight, at high cost, and arrangement needs to have larger space in outrigger box body.
Telescopic oil cylinder currently on the market+wirerope combined type all adds the type of pulley blocks using telescopic oil cylinder head substantially
Formula, second level leg stretches wirerope around cylinder head pulley blocks when stretching supporting leg, is connected to second level leg tail portion.Wirerope one end is fixed when contracting leg
In fixed supporting leg case, level-one leg tail portion pulley blocks are bypassed, are connected to second level leg tail portion, and preceding sliding block adopts nylon slide block, does not allow
Easily adjustment gap, dry friction, resistance is big, flexible to have jitter phenomenon.
Utility model content
The utility model is stable, with long service life in view of the foregoing drawbacks, and it is an object of the present invention to provide a kind of structurally reasonable
A kind of two-stage stretching supporting leg.
The technical solution adopted in the utility model is thus: a kind of two-stage stretching supporting leg, including fixed supporting leg (1), and
To the outer and interior level-one Retractive leg (2) and second level Retractive leg (3) being successively set in fixed supporting leg (1)；
It is provided with driving device (4), described driving device (4) one end is fixed on fixed supporting leg (1), the other end is fixed on
On level-one Retractive leg (2), and drive level-one Retractive leg (2) flexible by the driving device (4)；
It is provided with drag-line of stretching one's legs (7), described drag-line of stretching one's legs (7) one end is fixed on the fixed supporting leg (1), described to stretch one's legs
Drag-line (7) is penetrated by pulley one (12) to the space of level-one Retractive leg (2) and second level Retractive leg (3) formation, and final
It is fixed on second level Retractive leg (3)；
It is provided with contracting leg drag-line (8), described contracting leg drag-line (8) one end is fixed on the fixed supporting leg (1), the contracting leg
Drag-line (8) is penetrated by pulley two (14) to the space of fixed supporting leg (1) and level-one Retractive leg (2) formation, then contracting leg
Drag-line (8), which bypasses the fixation pulley one (5) of level-one Retractive leg (2) tail portion and is finally connected to, is fixed on second level Retractive leg (3) tail
The fixation pulley two (6) in portion.
The pulley one (12) is contradicted by spacer (13) coaxially connected idler wheel one (10), the idler wheel one (10) described
Second level Retractive leg (3) outer surface.
The pulley two (14) by axis (11) coaxially connected idler wheel two (15), the idler wheel two (15) contradict it is described with
And Retractive leg (2) outer surface.
Lower tail is fixed with cushion block afterwards for the level-one Retractive leg (2) and second level Retractive leg (3).
Driving device (4) head is provided with guiding trestle and leading block.
The drag-line of stretching one's legs (7) and contracting leg drag-line (8) are connected on the fixed supporting leg (1) by connecting plate.
The utility model has the advantages that: 1) telescoping mechanism connection and reasonable arrangement, arrangement are simple；2) there was only horizontal oil inside supporting leg
Cylinder, the fluid pressure line gone to vertical leg hydraulic lock have sufficient arrangement space；3) there is idler wheel below supporting leg, efficiently solve branch
Leg rubs jitter problem when flexible；4) flexible zipper bearing is fixed pulley, effectively overcomes the flexible zipper of other producers
It cannot self-adjusting disadvantage after being fixed for wirerope+pull rod pattern.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the A-A direction view of Fig. 1.
Fig. 3 is the B-B direction view of Fig. 1.
Fig. 4 is the portion the A enlarged drawing in Fig. 1.
1 it is fixed supporting leg in figure, 2 be level-one Retractive leg, 3 be second level Retractive leg, 4 be driving device, 5 is fixed pulley
One, 6 be fixed pulley two, 7 be stretch one's legs drag-line, 8 be contracting leg zipper, 9 be nut, 10 be that idler wheel one, 11 is axis, 12 is pulley
One, 13 it is spacer, 14 be pulley two, 15 is idler wheel two.
Specific embodiment
A kind of two-stage stretching supporting leg, including fixed supporting leg 1, and to outer and interior one be successively set in fixed supporting leg 1
Grade Retractive leg 2 and second level Retractive leg 3；
It is provided with driving device 4, described 4 one end of driving device is fixed on fixed supporting leg 1, the other end is fixed on level-one and stretches
On contracting leg 2, and level-one Retractive leg 2 is driven to stretch by the driving device 4；
It is provided with drag-line 7 of stretching one's legs, described 7 one end of drag-line of stretching one's legs is fixed on the fixed supporting leg 1, the drag-line 7 of stretching one's legs
It is penetrated by pulley 1 to the space of level-one Retractive leg 2 and the formation of second level Retractive leg 3, and it is flexible to be finally fixed at second level
On leg 3；
It is provided with contracting leg drag-line 8, described 8 one end of contracting leg drag-line is fixed on the fixed supporting leg 1, the contracting leg drag-line 8
It is penetrated by pulley 2 14 to the space of fixed supporting leg 1 and the formation of level-one Retractive leg 2, then contracting leg drag-line 8 bypasses level-one
The fixation pulley 1 of 2 tail portion of Retractive leg is simultaneously finally connected to the fixation pulley 26 for being fixed on 3 tail portion of second level Retractive leg.
By the coaxially connected idler wheel 1 of spacer 13, the idler wheel 1 contradicts flexible in the second level pulley 1
3 outer surface of leg.
The pulley 2 14 is contradicted by the coaxially connected idler wheel 2 15 of axis 11, the idler wheel 2 15 in described and Retractive leg
2 outer surfaces.
Lower tail is fixed with cushion block after the level-one Retractive leg 2 and second level Retractive leg 3.
4 head of driving device is provided with guiding trestle and leading block.
Drag-line 7 and the contracting leg drag-line 8 of stretching one's legs is connected on the fixed supporting leg 1 by connecting plate.
The working process of the utility model is as follows: 4 one end of telescopic oil cylinder driving device is fixed on fixed supporting leg 1, and one end is solid
It is scheduled on 2 tail portion of level-one Retractive leg, drives level-one Retractive leg 2 flexible when stretching；7 one end of zipper of stretching one's legs is fixed on fixed supporting leg 1,
Around the pulley 1 in B-B, it is arranged between 2 plate upper surface of 3 lower surface of base plate of second level Retractive leg and level-one Retractive leg, and
It is fixed on 3 rear side of second level Retractive leg, when telescopic oil cylinder driving device 4 is stretched, synchronizes and carries out stretching supporting leg；8 one end of contracting leg drag-line
It is fixed on fixed supporting leg 1, around pulley 2 14 shown in A-A, is arranged in 2 lower surface of base plate of level-one Retractive leg and fixed branch
Between 1 inside upper surface of leg, around the fixed pulley 5 in 2 tail portion of level-one Retractive leg, it is fixed on the fixed pulley in 3 tail portion of second level Retractive leg
26, when telescopic oil cylinder driving device 4 retracts, second level Retractive leg 3 is driven to contract.
In telescopic process, lower tail and the second level lower tail after 3 legs that stretches are welded with cushion block after level-one Retractive leg 2, guarantee to stretch
Contracting arm zipper has enough spaces when arranging.There are guiding trestle and pulley in 4 head of telescopic oil cylinder driving device, guarantees that oil cylinder is being stretched
When contracting, it will not fall.
Idler wheel 1 shown in A-A and B-B and idler wheel 2 15 have following effect:
1) it is limited in short transverse, guarantees there are enough gaps between the associated pulleys and corresponding Retractive leg of inside,
It can roll, and wirerope will not jump out pulley.
2) in Retractive leg telescopic process, friction is changed into rolling friction, overcomes the flexible shake of friction bring.
Claims (6)
1. a kind of two-stage stretching supporting leg, which is characterized in that be successively set on fixation including fixed supporting leg (1), and to outer and interior
Level-one Retractive leg (2) and second level Retractive leg (3) in supporting leg (1)；
It is provided with driving device (4), described driving device (4) one end is fixed on fixed supporting leg (1), the other end is fixed on level-one
On Retractive leg (2), and drive level-one Retractive leg (2) flexible by the driving device (4)；
It is provided with drag-line of stretching one's legs (7), described drag-line of stretching one's legs (7) one end is fixed on the fixed supporting leg (1), the drag-line of stretching one's legs
(7) it is penetrated by pulley one (12) to the space of level-one Retractive leg (2) and second level Retractive leg (3) formation, and finally fixed
On second level Retractive leg (3)；
It is provided with contracting leg drag-line (8), described contracting leg drag-line (8) one end is fixed on the fixed supporting leg (1), the contracting leg drag-line
(8) it is penetrated by pulley two (14) to the space of fixed supporting leg (1) and level-one Retractive leg (2) formation, then contracting leg drag-line
(8) it bypasses the fixation pulley one (5) of level-one Retractive leg (2) tail portion and is finally connected to and be fixed on second level Retractive leg (3) tail portion
Fixed pulley two (6).
2. a kind of two-stage stretching supporting leg according to claim 1, which is characterized in that the pulley one (12) passes through spacer
(13) coaxially connected idler wheel one (10), the idler wheel one (10) contradict in second level Retractive leg (3) outer surface.
3. a kind of two-stage stretching supporting leg according to claim 1, which is characterized in that the pulley two (14) passes through axis (11)
Coaxially connected idler wheel two (15), the idler wheel two (15) contradict in described and Retractive leg (2) outer surface.
4. a kind of two-stage stretching supporting leg according to claim 1, which is characterized in that the level-one Retractive leg (2) and second level
Lower tail is fixed with cushion block to Retractive leg (3) afterwards.
5. a kind of two-stage stretching supporting leg according to claim 1, which is characterized in that driving device (4) the head setting
There are guiding trestle and leading block.
6. a kind of two-stage stretching supporting leg according to claim 1, which is characterized in that the drag-line of stretching one's legs (7) and contracting leg are drawn
Rope (8) is connected on the fixed supporting leg (1) by connecting plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821938434.6U CN209398660U (en) | 2018-11-23 | 2018-11-23 | A kind of two-stage stretching supporting leg |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821938434.6U CN209398660U (en) | 2018-11-23 | 2018-11-23 | A kind of two-stage stretching supporting leg |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209398660U true CN209398660U (en) | 2019-09-17 |
Family
ID=67880565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821938434.6U Expired - Fee Related CN209398660U (en) | 2018-11-23 | 2018-11-23 | A kind of two-stage stretching supporting leg |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209398660U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110901602A (en) * | 2019-12-10 | 2020-03-24 | 湖南响箭重工科技有限公司 | Pin-rack transmission telescopic two-stage telescopic supporting leg system |
-
2018
- 2018-11-23 CN CN201821938434.6U patent/CN209398660U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110901602A (en) * | 2019-12-10 | 2020-03-24 | 湖南响箭重工科技有限公司 | Pin-rack transmission telescopic two-stage telescopic supporting leg system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190917 Termination date: 20211123 |