CN106143434A - A kind of engineering truck support leg mechanism and bridge inspection vehicle - Google Patents
A kind of engineering truck support leg mechanism and bridge inspection vehicle Download PDFInfo
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- CN106143434A CN106143434A CN201510208022.1A CN201510208022A CN106143434A CN 106143434 A CN106143434 A CN 106143434A CN 201510208022 A CN201510208022 A CN 201510208022A CN 106143434 A CN106143434 A CN 106143434A
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- supporting leg
- support leg
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Abstract
The present invention relates to a kind of engineering truck support leg mechanism, including upper supporting leg (3), lower supporting leg (4) and telescopic oil cylinder (1), first end of upper supporting leg (3) and telescopic oil cylinder (1) is hinged with the vehicle frame of engineering truck (2) respectively, and the second end of upper supporting leg (3) and telescopic oil cylinder (1) is hinged with lower supporting leg (4) respectively；Vehicle frame (2), upper supporting leg (3), lower supporting leg (4) and telescopic oil cylinder (1) constitute quadric chain.The invention still further relates to a kind of bridge inspection vehicle.The present invention constitutes quadric chain by oil cylinder, vehicle frame, upper supporting leg and lower supporting leg, adds stress point, effectively reduces the load at hinge；And by design upper supporting leg and lower support leg mechanism, under meeting identical support function, it is possible to reduce the path increment of oil cylinder, thus save resources costs, effectively reduce the load of hinge, it is to avoid the generation of oil cylinder overload phenomenon.
Description
Technical field
The present invention relates to engineering machinery field, particularly a kind of engineering truck support leg mechanism and bridge
Beam detection car.
Background technology
At present, the support leg mechanism that bridge inspection vehicle is used, by oil cylinder, vehicle frame, leg-shaped
Become stable triangular structure, it is achieved bearing function.Stretched by oil cylinder, it is achieved support leg mechanism
Support and recovery.It addition, with roller on support leg mechanism, and driven by reductor, real
Before and after existing bridge-checking vehicle, operation is moved.Although the triangle formed by oil cylinder, vehicle frame, supporting leg
Structure, has preferable stability, but in order to meet supporting leg roller distance ground in removal process
The requirement for height in face is higher to the range demands of oil cylinder.Further, stretch out due to supporting leg and shrink
Terrain clearance limit, cause that supporting leg and vehicle frame pin joint power are excessive, oil cylinder bearing capacity big, hold
Easily cause hinge point structural member cracking damage.
Summary of the invention
It is an object of the invention to provide a kind of engineering truck support leg mechanism and bridge inspection vehicle,
To reduce the support leg mechanism bearing capacity to telescopic oil cylinder and the requirement of stroke.
The present invention provides a kind of engineering truck support leg mechanism, including upper supporting leg 3, lower supporting leg 4
With telescopic oil cylinder 1, the first end of described upper supporting leg 3 and described telescopic oil cylinder 1 is respectively with described
The vehicle frame 2 of engineering truck is hinged by the first pin joint A and the second pin joint B, described upper
Second end of lower limb 3 and described telescopic oil cylinder 1 is respectively by the 3rd pin joint E and the 4th pin joint
C is hinged with described lower supporting leg 4；Described vehicle frame 2, upper supporting leg 3, lower supporting leg 4 and telescopic oil cylinder
1 constitutes quadric chain.
Further, also include that the first position limiting structure, described first position limiting structure enable to institute
State support leg mechanism when entirely stretching state, limit and enter one between described upper supporting leg 3 and lower supporting leg 4
Step relatively rotates.
Further, also include: supporting leg wheel carrier 5 and the rolling being arranged on described supporting leg wheel carrier 5
Wheel 6, described lower supporting leg 4 carries out hinged with described supporting leg wheel carrier 5 by the 5th pin joint D,
Described 4th pin joint C, the 3rd pin joint E and the 5th pin joint D line triangular in shape.
Further, described support leg mechanism is when entirely stretching state, and described 5th pin joint D is positioned at
Immediately below described 4th pin joint C.
Further, described first position limiting structure includes being fixedly installed on the downside of described upper supporting leg
Limiting plate, when described support leg mechanism is in and entirely stretches state, described limiting plate can be resisted against institute
State on the side of lower supporting leg 4, to limit the further of described upper supporting leg 3 and described lower supporting leg 4
Relatively rotate.
Further, also include that the second position limiting structure, described second position limiting structure enable to institute
State support leg mechanism when full reduced state, limit and enter one between described upper supporting leg 3 and lower supporting leg 4
Step relatively rotates.
Further, described second position limiting structure includes top board, baffle plate 8 and sleeve 9, described
Sleeve 9 is fixing with described lower supporting leg 4 to be connected, and the central shaft of described sleeve 9 and the described 3rd
Pin joint E overlaps；Described top board is fixedly installed on described upper supporting leg 3, on described sleeve 9
The described baffle plate 8 of fixing connection, when described support leg mechanism is in full reduced state, described baffle plate 8
Can be resisted against on described top board, enter one with limit described upper supporting leg 3 and described lower supporting leg 4
Step relatively rotates.
Further, described top board and limiting plate are by be fixedly installed on described upper supporting leg 3
Individual bent plate is formed.
Further, including the first torsion spring 10 and the second torsion spring 11, described first torsion spring 10 sets
Put at described first pin joint A, and be connected between described vehicle frame 2 and described upper supporting leg 3；
Described second torsion spring 11 is arranged at described 3rd pin joint E, and is connected to described upper supporting leg 3
And between described lower supporting leg 4；When described support leg mechanism is in full reduced state, described first turns round
Spring 10 is in compacted state, and described second torsion spring 11 is in natural balanced state；At described supporting leg
Mechanism is in when entirely stretching state, and described first torsion spring 10 is in natural balanced state, and described second turns round
Spring 11 is in Tensile state.
The present invention also provides for a kind of bridge inspection vehicle, including above-mentioned engineering truck supporting leg machine
Structure.
The present invention, by being constituted quadric chain by oil cylinder, vehicle frame, upper supporting leg and lower supporting leg, increases
Add stress point, effectively reduce the load at hinge；And by design upper supporting leg and lower supporting leg
Structure, under meeting identical support function, it is possible to reduce the path increment of oil cylinder, thus save
Resource-saving cost, effectively reduce the load of hinge, it is to avoid the generation of oil cylinder overload phenomenon.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the application
A part, the schematic description and description of the present invention is used for explaining the present invention, not structure
Become inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the principle of a specific embodiment of the engineering truck support leg mechanism of the present invention
Figure, now this support leg mechanism is in full reduced state.
Fig. 2 is the principle of a specific embodiment of the engineering truck support leg mechanism of the present invention
Figure, now this support leg mechanism is in state of entirely stretching.
Fig. 3 and Fig. 4 is respectively of the lower supporting leg of the engineering truck support leg mechanism of the present invention
The front view of specific embodiment and side view.
Detailed description of the invention
Below by drawings and Examples, technical scheme is done and further retouches in detail
State.
As illustrated in fig. 1 and 2, the engineering truck support leg mechanism of the present invention, including upper supporting leg 3,
First end of lower supporting leg 4 and telescopic oil cylinder 1, upper supporting leg 3 and telescopic oil cylinder 1 respectively with engineering
The vehicle frame 2 of vehicle is hinged by the first pin joint A and the second pin joint B, upper supporting leg 3 and stretching
Second end of contracting oil cylinder 1 is respectively by the 3rd pin joint E and the 4th pin joint C and lower supporting leg 4
Hinged.Owing to hinged position is different, it will be seen from figure 1 that vehicle frame 2, upper supporting leg 3, under
Supporting leg 4 and telescopic oil cylinder 1 constitute quadric chain.
In technique scheme, four be made up of oil cylinder, vehicle frame, upper supporting leg and lower supporting leg are even
Linkage, owing to adding stress point, therefore effectively reduces the load at hinge；And pass through
Design upper supporting leg and the structure of lower supporting leg, under meeting identical support function, it is possible to reduce oil
The path increment of cylinder, thus save resources costs, effectively reduce the load of hinge, it is to avoid oil
The generation of cylinder overload phenomenon.
Support leg mechanism can also set up the first position limiting structure further, as in figure 2 it is shown, the first limit
Bit architecture enables to support leg mechanism when entirely stretching state, limit upper supporting leg 3 and lower supporting leg 4 it
Between relatively rotate further.Specifically, the first position limiting structure includes being fixedly installed on
Limiting plate on the downside of lower limb (i.e. Fig. 1, in 2 bent plate 7 from upper supporting leg along the part exposed),
Support leg mechanism is in when entirely stretching state, and limiting plate can be resisted against on the side of lower supporting leg 4, with
Limit relatively rotating further of upper supporting leg 3 and lower supporting leg 4.Here entirely stretching of support leg mechanism
State can be telescopic oil cylinder 1 fully extended time state, it is also possible to be that telescopic oil cylinder 1 stretches out
After preset length, the first position limiting structure plays state during position-limiting action.
Traditional triangle stress form of support leg mechanism is being replaced with double leval jib machine by the present embodiment
Configuration formula, and coordinate above-mentioned first position limiting structure 7 to constitute stable stress, so that each
The load reduction of hinge, it is therefore prevented that hinge load is excessive.Further, identical support merit is being met
Under energy, reduce path increment and the bearing capacity of telescopic oil cylinder 1, thus save resources costs.
In addition to using the form of above-mentioned first position limiting structure, it is also possible to use other arbitrary shapes
Formula can support leg mechanism be in entirely stretch state limit upper supporting leg 3 and lower supporting leg 4 enter one
Walk structure in relative rotation.
Lower supporting leg 4 can lean ground by roller, in order to realizes operation walking function.Fig. 1,
In 2, support leg mechanism still further comprises supporting leg wheel carrier 5 and the roller being arranged on supporting leg wheel carrier 5
6, lower supporting leg 4 carries out hinged with supporting leg wheel carrier 5 by the 5th pin joint D, the 4th pin joint C,
The line of the 3rd pin joint E and the 5th pin joint D is triangular in shape.So, when support leg mechanism
When telescopic oil cylinder 1 is fully extended, roller 6 just can be good at acting against ground and is supported,
And the operation walking of whole engineering truck can be completed.
In order to reduce hinge load further, at support leg mechanism when entirely stretching state, the 5th is hinged
Point D is positioned at immediately below the 4th pin joint C.
Except the state of stretching entirely of support leg mechanism upper and lower supporting leg can be carried out spacing in addition to,
The full reduced state of leg mechanism can also arrange position limiting structure, the i.e. second position limiting structure, in order to makes to prop up
Leg mechanism, when full reduced state, limits the most relatively turning between upper supporting leg 3 and lower supporting leg 4
Dynamic.With reference to Fig. 1-4, the second position limiting structure can specifically include top board (i.e. Fig. 1, bent plate in 2
7 parts being positioned at upper supporting leg 3), baffle plate 8 and sleeve 9, sleeve 9 is fixed with lower supporting leg 4
Connect, and the central shaft of sleeve 9 and the second pin joint E overlap；Top board is fixedly installed on and props up
On lower limb 3, fixing connection baffle plate 8 on sleeve 9, when support leg mechanism is in full reduced state, gear
Plate 8 can be resisted against on top board, turns limiting the further relative of upper supporting leg 3 and lower supporting leg 4
Dynamic.It is provided with the top board on upper supporting leg 3 and limiting plate can be arranged with split, it is also possible to as
Fig. 1, realized by a bent plate in 2.The full reduced state of support leg mechanism here can be flexible oil
State when cylinder 1 is fully retracted, it is also possible to be after telescopic oil cylinder 1 is retracted into predeterminable range, the
Two position limiting structures play state during position-limiting action.
For the purpose being easily installed and safeguarding, upper supporting leg 3 is positioned at outside lower supporting leg 4.Certainly,
The mutual alignment of supporting leg is not limited only to this up and down.
In order to further ensure that upper and lower supporting leg can action successively, in one embodiment, bag
Including the first torsion spring 10 and the second torsion spring 11, the first torsion spring 10 is arranged at the first pin joint A,
And be connected between vehicle frame 2 and upper supporting leg 3；Second torsion spring 11 is arranged on the 3rd pin joint E
Place, and be connected between upper supporting leg 3 and lower supporting leg 4；When support leg mechanism is in full reduced state,
First torsion spring 10 is in compacted state, and the second torsion spring 11 is in natural balanced state；At supporting leg machine
Structure is in when entirely stretching state, and the first torsion spring 10 is in natural balanced state, and the second torsion spring 11 is in being subject to
Extended state.
The above-mentioned engineering truck support leg mechanism of the present invention is applicable to all kinds of need support leg mechanism
Engineering truck, can equally be well applied to bridge inspection vehicle.The present invention then also provides for a kind of bridge inspection
Measuring car, including above-mentioned engineering truck support leg mechanism.
Below, in conjunction with the embodiment of the above-mentioned support leg mechanism of the present invention, the support leg mechanism to the present invention
Operating process be described:
When support leg mechanism is in full reduced state, torsion spring 10 is in impaction state, moment of torsion
Spring 11 is in natural balanced state, and baffle plate 8 contacts with each other with bent plate 7, whole support leg mechanism
Overhead certain altitude.
When telescopic oil cylinder 1 carries out stretching cylinder action, owing to the first torsion spring 10 is in impaction state,
And the second torsion spring 11 is in natural balanced state, lower supporting leg 4 under the effect of telescopic oil cylinder 1 around
3rd pin joint E rotates clockwise, and upper supporting leg 3 is under the moment of torsion effect of the first torsion spring 10
Also rotating clockwise around the first pin joint A, the first torsion spring 10 is then from impaction state gradually
Release, the second torsion spring 11 is then gradually opened from natural balanced state.Telescopic oil cylinder 1 continues
When stretching out until the side of lower supporting leg 4 leans the bent plate 7 on upper supporting leg 3, roller 6 shape
The support on ground in pairs, and then realize the support function of whole support leg mechanism.Now, supporting leg machine
Structure realizes entirely stretching state under the effect of the first position limiting structure.For stretching completely with telescopic oil cylinder 1
Go out the situation of the state of entirely stretching as support leg mechanism, then the side at lower supporting leg 4 leans bent plate
After 7, telescopic oil cylinder 1 continues protruding, thus drives upper supporting leg 3 and lower supporting leg 4 to synchronize
Rotate clockwise, until telescopic oil cylinder 1 is fully extended.
When support leg mechanism is in and entirely stretches state, roller 6 is supported in ground, and lower supporting leg 4 is with curved
Plate 7 contacts, and the 5th pin joint D of lower supporting leg 4 is positioned at the underface of the 4th pin joint C, the
The second torsion spring 11 at five pin joint E is in tension state, first at the first pin joint A
Torsion spring 10 is in natural balanced state, and now roller 6 can be driven by hydraulic system and occur to turn
Dynamic, thus realize advance and the retrogressing of engineering truck.
When telescopic oil cylinder 1 carries out contracting cylinder action, along with the retraction of piston rod, roller 6 applies
Load in ground is gradually reduced, and support leg mechanism is the most liftoff, second at the 3rd pin joint E
Torsion spring 11 is gradually restored to natural balanced state from tension state, and at the first pin joint A
First torsion spring 10 becomes impaction state from natural balanced state.Due to the first torsion spring 10 and second
The above-mentioned stress of torsion spring 11, lower supporting leg 4 can first occur counterclockwise along the 3rd pin joint E
Rotating, upper supporting leg 3, due to the pressure effect by the first torsion spring 10, temporarily will not rotate,
Owing to sleeve 9 welds together with lower supporting leg 4, sleeve 9 Tong Bu can carry out inverse with lower supporting leg 4
Hour hands rotate, and after sleeve 9 turns over certain angle, the baffle plate 8 on sleeve 9 will touch bent plate
7 so that lower supporting leg 4 stops the rotation along the 3rd pin joint E.Now, at the second spacing knot
Under the effect of structure, support leg mechanism reaches full reduced state.For being fully retracted work with telescopic oil cylinder 1
For the situation of the state of entirely stretching of support leg mechanism, then the baffle plate 8 on sleeve 9 will touch bent plate 7
After, lower supporting leg 4 rotates counterclockwise Tong Bu along the first pin joint A with upper supporting leg 3, therefore
First torsion spring 10 pressure is gradually increased, until telescopic oil cylinder is fully retracted, whole mechanism transports
Dynamic stopping, thus reach the full reduced state of support leg mechanism, and then realize returning of whole support leg mechanism
Receiving function, now, the first torsion spring 10 is in impaction state, and the second torsion spring 11 is in nature and puts down
Weighing apparatus state.
Finally should be noted that: above example only in order to technical scheme to be described and
Non-to its restriction；Although the present invention being described in detail with reference to preferred embodiment, affiliated
The those of ordinary skill in field is it is understood that still can enter the detailed description of the invention of the present invention
Row is revised or portion of techniques feature is carried out equivalent；Without deviating from technical solution of the present invention
Spirit, it all should be contained in the middle of the technical scheme scope that the present invention is claimed.
Claims (10)
1. an engineering truck support leg mechanism, it is characterised in that include upper supporting leg (3),
Lower supporting leg (4) and telescopic oil cylinder (1), described upper supporting leg (3) and described telescopic oil cylinder (1)
The first end respectively with the vehicle frame (2) of described engineering truck by the first pin joint (A) and the
Two pin joints (B) are hinged, described upper supporting leg (3) and the second of described telescopic oil cylinder (1)
End is respectively by the 3rd pin joint (E) and the 4th pin joint (C) and described lower supporting leg (4)
Hinged；Described vehicle frame (2), upper supporting leg (3), lower supporting leg (4) and telescopic oil cylinder (1)
Constitute quadric chain.
2. engineering truck support leg mechanism as claimed in claim 1, it is characterised in that also
Including the first position limiting structure, described first position limiting structure enables to described support leg mechanism and is entirely stretching
During state, limit relatively rotating further between described upper supporting leg (3) and lower supporting leg (4).
3. engineering truck support leg mechanism as claimed in claim 1, it is characterised in that also
Including: supporting leg wheel carrier (5) and the roller (6) being arranged on described supporting leg wheel carrier (5), institute
State lower supporting leg (4) and carry out hinged with described supporting leg wheel carrier (5) by the 5th pin joint (D),
Described 4th pin joint (C), the 3rd pin joint (E) and the line of the 5th pin joint (D)
Triangular in shape.
4. engineering truck support leg mechanism as claimed in claim 3, it is characterised in that institute
Stating support leg mechanism when entirely stretching state, described 5th pin joint (D) is positioned at described 4th hinged
Immediately below point (C).
5. engineering truck support leg mechanism as claimed in claim 2, it is characterised in that institute
State the first position limiting structure to include being fixedly installed on the limiting plate on the downside of described upper supporting leg, at described
Leg mechanism is in when entirely stretching state, and described limiting plate can be resisted against the side of described lower supporting leg (4)
Bian Shang, to limit relatively rotating further of described upper supporting leg (3) and described lower supporting leg (4).
6. engineering truck support leg mechanism as claimed in claim 5, it is characterised in that also
Including the second position limiting structure, described second position limiting structure enables to described support leg mechanism full reduced
During state, limit relatively rotating further between described upper supporting leg (3) and lower supporting leg (4).
7. engineering truck support leg mechanism as claimed in claim 6, it is characterised in that institute
State the second position limiting structure and include top board, baffle plate (8) and sleeve (9), described sleeve (9) with
Described lower supporting leg (4) is fixing to be connected, and the central shaft of described sleeve (9) cuts with scissors with the described 3rd
Contact (E) overlaps；Described top board is fixedly installed on described upper supporting leg (3), described sleeve
(9) the described baffle plate of upper fixing connection (8), when described support leg mechanism is in full reduced state,
Described baffle plate (8) can be resisted against on described top board, to limit described upper supporting leg (3) and institute
State relatively rotating further of lower supporting leg (4).
8. engineering truck support leg mechanism as claimed in claim 7, it is characterised in that institute
State top board and limiting plate to be formed by the bent plate being fixedly installed on described upper supporting leg (3).
9. the engineering truck support leg mechanism as described in as arbitrary in claim 1～8, its feature exists
In, including the first torsion spring (10) and the second torsion spring (11), described first torsion spring (10) sets
Put at described first pin joint (A) place, and be connected to described vehicle frame (2) and described upper supporting leg
(3) between；Described second torsion spring (11) is arranged on described 3rd pin joint (E) place, and
It is connected between described upper supporting leg (3) and described lower supporting leg (4)；At described support leg mechanism
When full reduced state, described first torsion spring (10) in compacted state, described second torsion spring (11)
In natural balanced state；When described support leg mechanism is in and entirely stretches state, described first torsion spring (10)
In natural balanced state, described second torsion spring (11) is in Tensile state.
10. a bridge inspection vehicle, it is characterised in that include as arbitrary in claim 1～9
Described engineering truck support leg mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510208022.1A CN106143434B (en) | 2015-04-28 | 2015-04-28 | A kind of engineering truck support leg mechanism and bridge inspection vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510208022.1A CN106143434B (en) | 2015-04-28 | 2015-04-28 | A kind of engineering truck support leg mechanism and bridge inspection vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106143434A true CN106143434A (en) | 2016-11-23 |
| CN106143434B CN106143434B (en) | 2018-06-26 |
Family
ID=57347653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510208022.1A Active CN106143434B (en) | 2015-04-28 | 2015-04-28 | A kind of engineering truck support leg mechanism and bridge inspection vehicle |
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| Country | Link |
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| CN (1) | CN106143434B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109501780A (en) * | 2018-12-28 | 2019-03-22 | 徐工集团工程机械有限公司 | Leg structure and engineering truck |
| CN114013406A (en) * | 2021-11-04 | 2022-02-08 | 山西北方机械制造有限责任公司 | Quick conversion device for driving state and fighting state |
| CN114506300A (en) * | 2022-03-10 | 2022-05-17 | 江苏徐工工程机械研究院有限公司 | Engineering vehicle supporting leg mechanism, engineering vehicle chassis and engineering vehicle |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4312520A (en) * | 1979-01-26 | 1982-01-26 | York Truck Equipment Limited | Semi-trailers |
| CN2839050Y (en) * | 2005-10-15 | 2006-11-22 | 徐州徐工随车起重机有限公司 | Bridge detection working vehicle support |
| CN102019911A (en) * | 2010-12-09 | 2011-04-20 | 北京市三一重机有限公司 | Crawler-type engineering machinery and crawler-type landing leg device |
-
2015
- 2015-04-28 CN CN201510208022.1A patent/CN106143434B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4312520A (en) * | 1979-01-26 | 1982-01-26 | York Truck Equipment Limited | Semi-trailers |
| CN2839050Y (en) * | 2005-10-15 | 2006-11-22 | 徐州徐工随车起重机有限公司 | Bridge detection working vehicle support |
| CN102019911A (en) * | 2010-12-09 | 2011-04-20 | 北京市三一重机有限公司 | Crawler-type engineering machinery and crawler-type landing leg device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109501780A (en) * | 2018-12-28 | 2019-03-22 | 徐工集团工程机械有限公司 | Leg structure and engineering truck |
| CN114013406A (en) * | 2021-11-04 | 2022-02-08 | 山西北方机械制造有限责任公司 | Quick conversion device for driving state and fighting state |
| CN114506300A (en) * | 2022-03-10 | 2022-05-17 | 江苏徐工工程机械研究院有限公司 | Engineering vehicle supporting leg mechanism, engineering vehicle chassis and engineering vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106143434B (en) | 2018-06-26 |
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