CN107813800A - A kind of bi-directional expansion supporting leg and engineering machinery - Google Patents
A kind of bi-directional expansion supporting leg and engineering machinery Download PDFInfo
- Publication number
- CN107813800A CN107813800A CN201711029223.0A CN201711029223A CN107813800A CN 107813800 A CN107813800 A CN 107813800A CN 201711029223 A CN201711029223 A CN 201711029223A CN 107813800 A CN107813800 A CN 107813800A
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- CN
- China
- Prior art keywords
- supporting leg
- static housing
- outlet
- telescopic outrigger
- casing
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S9/00—Ground-engaging vehicle fittings for supporting, lifting, or manoeuvring the vehicle, wholly or in part, e.g. built-in jacks
- B60S9/02—Ground-engaging vehicle fittings for supporting, lifting, or manoeuvring the vehicle, wholly or in part, e.g. built-in jacks for only lifting or supporting
- B60S9/10—Ground-engaging vehicle fittings for supporting, lifting, or manoeuvring the vehicle, wholly or in part, e.g. built-in jacks for only lifting or supporting by fluid pressure
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
Abstract
The present invention relates to technical field of engineering machinery, more particularly to a kind of bi-directional expansion supporting leg and engineering machinery.Wherein, telescopic outrigger includes static housing, the first supporting leg and the second supporting leg for being arranged and being coaxially disposed successively from outside to inside, wherein, on static housing first outlet and second outlet are respectively equipped with its axial first side and second side, first supporting leg can axially move, and stretched out from the first outlet of static housing, the second supporting leg can axially move, and be stretched out from the second outlet of static housing.Engineering machinery, include the telescopic outrigger of the present invention.The telescopic outrigger and engineering machinery of the present invention, the first supporting leg and the second supporting leg can be placed simultaneously in a fixed inside the box, the first supporting leg and the second supporting leg is stretched out from the both sides of static housing, so as to reduce the usage quantity of static housing, reduce overall weight and space-consuming.
Description
Technical field
The present invention relates to technical field of engineering machinery, more particularly to a kind of bi-directional expansion supporting leg and engineering machinery.
Background technology
Supporting leg is a kind of support meanss, in order to save transport and memory space, telescopic outrigger just occurs.Current is flexible
Supporting leg is typically made up of static housing, supporting leg, telescoping mechanism and support cylinder.Wherein, static housing and supporting leg are box-shaped knots
Structure, supporting leg can be movably coupled to fixed inside the box, and a fixed inside the box only fills a supporting leg, and allows supporting leg from fixation
The side of casing is stretched out.When telescopic outrigger does not work, support cylinder is retracted, and supporting leg is retracted into fixed inside the box；Telescopic outrigger
During work, supporting leg is extend out to from fixed inside the box requires position, and support cylinder stretches out and supported to ground.Common engineering machine
Tool can be provided with four telescopic outriggers, and the supporting form of telescopic outrigger has a variety of, such as has H types, X-type and mixed type.Now, four
Branch telescopic outrigger includes a static housing and a supporting leg installed in fixed inside the box respectively, at this point it is possible to engineering machine
Tool center of gravity is the center of circle, and four strong points are four static housings all around on symmetrical uniform circumference.
Although existing telescopic outrigger can serve the effect of section space-efficient to a certain extent, due to each
Supporting leg is required for a static housing, and static housing general structure size is larger, therefore still needs larger space, in space
It is difficult to arrange by limited time.Particularly when supporting leg is in X-type form, intersecting supporting leg will stagger up and down, and symmetrical supporting leg front and rear will stagger,
Static housing is caused more to be difficult to arrange.Meanwhile multiple static housings also increase overall weight.
Therefore, weight is caused because a static housing only installs a supporting leg for telescopic outrigger of the prior art
Greatly, the problem of space-consuming is big, it is desirable to provide a kind of in light weight, telescopic outrigger for occupying little space and engineering machinery.
The content of the invention
To solve the above problems, the present invention provides a kind of telescopic outrigger and engineering machinery, in a fixed inside the box simultaneously
The first supporting leg and the second supporting leg are placed, the first supporting leg and the second supporting leg is stretched out from the both sides of static housing, so as to reduce
The usage quantity of static housing, reduce overall weight and space-consuming.
To achieve the above object, a kind of telescopic outrigger of the invention, including be arranged and be coaxially disposed successively from outside to inside
Static housing, the first supporting leg and the second supporting leg, wherein,
First outlet and second is respectively equipped with static housing in its axial first side and second side to go out
Mouthful, the first supporting leg can axially move, and be stretched out from the first outlet of static housing, and the second supporting leg can axially move, and
And stretched out from the second outlet of static housing.
Further, one end of first outlet is provided with control the first supporting leg movement on static housing first stretches
Mechanism, the second telescoping mechanism of control the second supporting leg movement is provided with static housing close to one end of second outlet.
Further, the free end of the first supporting leg is provided with the first support cylinder for supporting ground, the second supporting leg
Free end is provided with the second support cylinder for supporting ground.
Further, the cross section of static housing, the first supporting leg and the second supporting leg is rectangular configuration.
Further, the first gap is provided between static housing and the first supporting leg, between static housing and the second supporting leg
It is provided with the second gap.
Further, the first guiding mechanism is provided with the first supporting leg, the second guiding mechanism is provided with the second supporting leg.
Further, the first guiding mechanism includes one or more first directive wheel, and the second guiding mechanism includes one
Or multiple second directive wheels.
Further, static housing is divided into the first interconnected casing and second casing two parts, and the first casing is set
First outlet, the second casing set second outlet, and the bottom wall of the first casing is provided with two level ladder, made transversal at first outlet
Area is less than second outlet.
Further, the second supporting leg is provided with opening, and the first supporting leg stretches out from opening, and opening is provided with skewback.
Present invention also offers a kind of engineering machinery, including above-mentioned telescopic outrigger.
The telescopic outrigger of the present invention, its first supporting leg are arranged in the casing of the second supporting leg, and the second supporting leg, which is arranged on, to be fixed
In casing, the first supporting leg and the second supporting leg is set to share a static housing, so that telescopic outrigger is compact-sized, and
Reduce overall physical dimension and space-consuming.
The engineering machinery of the present invention, due to having used the telescopic outrigger of the present invention, space-consuming can be greatly reduced, simultaneously
Reduce the overall weight of engineering machinery.
Brief description of the drawings
Fig. 1 is the front view of telescopic outrigger of the present invention；
Fig. 2 is the top view of telescopic outrigger of the present invention；
Fig. 3 is the sectional view of telescopic outrigger of the present invention；
Fig. 4 is the schematic diagram of telescopic outrigger working condition of the present invention；
Fig. 5 is Fig. 4 sectional view.
Embodiment
The embodiment of the present invention is described in further detail with reference to the accompanying drawings and examples.Following examples
For illustrating the present invention, but it is not limited to the scope of the present invention.
In the description of the invention, it is to be understood that term " on ", " under ", vertical ", " level ", " top ", " bottom "
The orientation or position relationship of the instructions such as " interior ", " outer " are based on orientation shown in the drawings or position relationship, are for only for ease of and retouch
State the present invention and simplify description, rather than indicate or imply that signified device or element there must be specific orientation, with specific
Azimuth configuration and operation, therefore be not considered as limiting the invention.In addition, term " first ", " second " are only used for retouching
Purpose is stated, and it is not intended that instruction or hint relative importance.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in invention.
As shown in Figure 1-2, a kind of telescopic outrigger of the invention, including static housing 1, the first supporting leg 2, the second supporting leg 3,
One telescoping mechanism 4, the second telescoping mechanism 5, the first support cylinder 6 and the second support cylinder 7.
Wherein, static housing 1 is divided into the first interconnected casing and second casing two parts, and the first casing is provided with
First outlet, the second casing are provided with second outlet.Static housing 1, the first supporting leg 2 and the second supporting leg 3 cover successively from outside to inside
And if it is coaxially disposed.On static housing 1 first outlet is respectively equipped with its axial first side and second side
And second outlet, the first supporting leg 2 can be inserted in static housing 1 from first outlet, the second supporting leg 3 can insert from second outlet
In static housing 1.Second supporting leg 3 is provided with opening close to one end of first outlet, and the first supporting leg 2 can penetrate from the opening
The inside of two supporting legs 3.
As shown in figure 3, the cross section of static housing 1, the first supporting leg 2 and the second supporting leg 3 is rectangular configuration, the first supporting leg
2 area of section is less than the second supporting leg 3, and the area of section of the second supporting leg 3 is less than static housing 1, and static housing 1 and first
The first gap 8 is provided between supporting leg 2, the second gap 9 is provided between the supporting leg 3 of static housing 1 and second, can be first
The supporting leg 3 of leg 2 and second plays the effect of being directed laterally to.
One end on static housing 1 close to first outlet is provided with the first telescoping mechanism 4, and the first telescoping mechanism 4 can be controlled
Make the first supporting leg 2 to be axially moveable, and the first supporting leg 2 is stretched out or is retracted from the first outlet of static housing 1.Fixed case
One end on body 1 close to second outlet is provided with the second telescoping mechanism 5, and the second telescoping mechanism 5 can control the second supporting leg 3 along axle
To movement, and the second supporting leg 3 is set to stretch out or retract from the second outlet of static housing 1.It should be noted that first is flexible
The telescoping mechanism 5 of mechanism 4 and second can be respectively arranged at the both ends of static housing 1 as shown in Figure 2, can also be arranged at fixation
The other positions of casing 1, as long as the work for the power that movement is provided for the corresponding supporting leg 3 of first supporting leg 2 and second can be played
With.
When second supporting leg 3 is in fully retracted state, the second supporting leg 3 is all retracted in static housing 1, the second supporting leg 3
Free end be located at outside static housing 1, when the first supporting leg 2 is in fully retracted state, the first supporting leg 2 is all retracted to second
In the casing of supporting leg 3, the free end of the first supporting leg 2 is located at outside static housing 1.When the first telescoping mechanism 4 carries out supporting leg stretching
During operation, the first supporting leg 2 can be promoted to stretch out, the first supporting leg 2 is stretched out static housing 1, stretched when the second telescoping mechanism 5 carries out supporting leg
When going out to operate, the second supporting leg 3 can be promoted to stretch out, the second supporting leg 3 is stretched out static housing 1, while the first supporting leg 2 progressively exits the
The casing of two supporting legs 3.First supporting leg 2 and the second supporting leg 3 it is fully extended state it is as shown in Figure 4, it is seen that the first supporting leg 2 and second
Supporting leg 3 is located at the both ends of static housing 1 respectively, and is kept completely separate.
In embodiments of the present invention, the free end of the first supporting leg 2 is additionally provided with the first support cylinder for supporting ground
6, the free end of the second supporting leg 3 is additionally provided with the second support cylinder 7 for supporting ground, when the first supporting leg 2 and the second supporting leg 3
After fully extended, the first support cylinder 6 and the second support cylinder 7 stretch out, by telescopic outrigger support on the ground.Now flexible branch
When leg is in running order, the load of weight 10 supported passes to the first supporting leg 2 by the both ends stress strong point of static housing 1
With the second supporting leg 3, the first supporting leg 2 and the second supporting leg 3 transfer load to the first support cylinder 6 and the second support cylinder respectively again
7。
In embodiments of the present invention, the first guiding mechanism is provided with the first supporting leg 2, second is provided with the second supporting leg 3
Guiding mechanism.First guiding mechanism includes one or more first directive wheel, and the second guiding mechanism includes one or more
Second directive wheel.Specifically, the first guiding mechanism can include be arranged at the first supporting leg 2 free end upper surface and/or under
One or more first directive wheel on surface, or the first supporting leg 2 is arranged at close to the upper surface of one end of the second supporting leg 3
And/or one or more first directive wheel on lower surface；Second guiding mechanism includes being arranged at the free end of the second supporting leg 3
Upper surface and/or lower surface on one or more second directive wheel, or be arranged at the second supporting leg 3 close to the first supporting leg
One or more second directive wheel on the upper surface and/or lower surface of 2 one end.As shown in figure 5, the first guiding mechanism bag
The first directive wheel on the lower surface of a free end for being arranged at the first supporting leg 2 is included, the first supporting leg 2 can be ensured in fixation
Stretching motion can be neatly carried out in casing 1.Second guiding mechanism is arranged under the free end of the second supporting leg 3 including one
The second directive wheel on surface and one are arranged at the second supporting leg 3 second leading on the upper surface of one end of the first supporting leg 2
To wheel so that the second supporting leg 3 reduces moving resistance by the second directive wheel, and on the free end lower surface of the second supporting leg 3
Second directive wheel can enable the clearance constant between the free end of the second supporting leg 3 and static housing 1, i.e., can ensure second
Uniform and small gap between supporting leg 3 and static housing 1, and ensure that the second supporting leg 3 can flexibly stretch in static housing 1
Motion, play up and down will not be produced again, improve the reliability of telescopic outrigger.In addition, after the second supporting leg 3 is fully extended, second
Directive wheel can play a supporting role again, prevent the second supporting leg 3 from tilting in the horizontal direction.
But because with static housing larger gap about 1 be present in the first supporting leg 2, when the first supporting leg 2 by gravity with outside
During the effect of power, play up and down can be produced, therefore, in an alternative embodiment of the invention, the opening of the second supporting leg 3 is provided with tiltedly
Block, now, first directive wheel is also provided with close to the lower surface of one end of the second supporting leg 3 in the first supporting leg 2, makes first
Supporting leg 2 when highest or lowest point, the first supporting leg 2 close to one end of the second supporting leg 3 the first directive wheel through
Skewback of two supporting legs 3 close to the one end of the first supporting leg 2 enters in the casing of the second supporting leg 3, and this makes it possible to ensure that the first supporting leg 2 begins
Steadily moved in static housing 1 eventually, be not in when the first supporting leg 2 departs from the second supporting leg 3, due to the second supporting leg 3 and admittedly
It is different to determine height between casing 1, the problem of causing the first supporting leg 2 that play up and down occurs, the first supporting leg 2 can also withdrawn
To can steadily move during the second supporting leg 3, there will not be difference in height because of between the second supporting leg 3 and static housing 1, and
Make the first supporting leg 2 that stuck nonrecoverable situation occur.
In embodiments of the present invention, the bottom wall of the first casing is also provided with two level ladder, makes the horizontal stroke at first outlet
Sectional area is less than second outlet, so that the inner chamber of static housing 1 is variable cross-section, in the lap of splice of the first supporting leg 2, static housing
Chamber size and the appearance and size of the first supporting leg 2 coordinate in 1, and height and the width are smaller；The inner chamber of the static housing 1 of remaining length section
Coordinate with the appearance and size of the second supporting leg 3, height and the width are larger.
In an alternative embodiment of the invention, a kind of engineering machinery, including above-mentioned telescopic outrigger are additionally provided.
In summary, the telescopic outrigger of the embodiment of the present invention, realizes the first supporting leg 2 and the second supporting leg 3 shares one admittedly
Determine casing 1, reduce space-consuming of the telescopic outrigger in practical application to greatest extent, and realize the first supporting leg 2 from
Stretching and retraction in second supporting leg 3.The engineering machinery of the present invention, can be significantly due to having used the telescopic outrigger of the present invention
Reduce space-consuming, while reduce the overall weight of engineering machinery
More than, it is only schematic description of the invention, it will be recognized by those skilled in the art that in the work without departing from the present invention
On the basis of making principle, a variety of improvement can be made to the present invention, this belongs to protection scope of the present invention.
Claims (10)
- A kind of 1. telescopic outrigger, it is characterised in that including be arranged and be coaxially disposed successively from outside to inside static housing, first Leg and the second supporting leg, wherein,First outlet and second is respectively equipped with the static housing in its axial first side and second side to go out Mouthful, first supporting leg can axially move, and be stretched out from the first outlet of the static housing, and second supporting leg can edge Axial movement, and stretched out from the second outlet of the static housing.
- 2. telescopic outrigger according to claim 1, it is characterised in that close to one end of first outlet on the static housing The first telescoping mechanism for controlling the first supporting leg movement is provided with, is set on the static housing close to one end of second outlet There is the second telescoping mechanism for controlling the second supporting leg movement.
- 3. telescopic outrigger according to claim 1, it is characterised in that the free end of first supporting leg is provided with for branch First support cylinder on ground is supportted, the free end of second supporting leg is provided with the second support cylinder for supporting ground.
- 4. telescopic outrigger according to claim 1, it is characterised in that the static housing, the first supporting leg and the second supporting leg Cross section be rectangular configuration.
- 5. telescopic outrigger according to claim 4, it is characterised in that set between the static housing and first supporting leg The first gap is equipped with, the second gap is provided between the static housing and second supporting leg.
- 6. telescopic outrigger according to claim 5, it is characterised in that be provided with the first Guiding machine on first supporting leg Structure, the second guiding mechanism is provided with second supporting leg.
- 7. telescopic outrigger according to claim 6, it is characterised in that first guiding mechanism includes one or more First directive wheel, second guiding mechanism include one or more second directive wheel.
- 8. telescopic outrigger according to claim 7, it is characterised in that the static housing is divided into the first interconnected case Body and second casing two parts, first casing set the first outlet, and second casing sets the second outlet, The bottom wall of first casing is provided with two level ladder, the cross-sectional area at the first outlet is less than the second outlet.
- 9. telescopic outrigger according to claim 8, it is characterised in that second supporting leg is provided with opening, described first Leg stretches out from the opening, and the opening is provided with skewback.
- 10. a kind of engineering machinery, it is characterised in that including telescopic outrigger as claimed in any one of claims 1-9 wherein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711029223.0A CN107813800A (en) | 2017-10-30 | 2017-10-30 | A kind of bi-directional expansion supporting leg and engineering machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711029223.0A CN107813800A (en) | 2017-10-30 | 2017-10-30 | A kind of bi-directional expansion supporting leg and engineering machinery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107813800A true CN107813800A (en) | 2018-03-20 |
Family
ID=61604349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711029223.0A Pending CN107813800A (en) | 2017-10-30 | 2017-10-30 | A kind of bi-directional expansion supporting leg and engineering machinery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107813800A (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 |
| CN109866690A (en) * | 2019-04-03 | 2019-06-11 | 徐工集团工程机械有限公司 | Engineering truck |
| CN111948340A (en) * | 2020-07-24 | 2020-11-17 | 江苏华诚自动化设备有限公司 | Toxic gas purification system and control method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4546996A (en) * | 1984-06-18 | 1985-10-15 | J. I. Case Company | Multi-surface stabilizer pad assembly |
| CN101219757A (en) * | 2008-01-29 | 2008-07-16 | 湖南三一起重机械有限公司 | Movable hoisting device supporting leg and movable hoisting device with the supporting leg |
| CN201484386U (en) * | 2009-05-31 | 2010-05-26 | 长沙中联重工科技发展股份有限公司 | Expansion leg |
| CN202439674U (en) * | 2012-02-10 | 2012-09-19 | 三一重工股份有限公司 | Supporting leg for engineering machinery and engineering machinery |
| CN204384767U (en) * | 2014-11-28 | 2015-06-10 | 徐州徐工随车起重机有限公司 | The lorry-mounted crane large span telescopic outrigger of single chamber nested type |
-
2017
- 2017-10-30 CN CN201711029223.0A patent/CN107813800A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4546996A (en) * | 1984-06-18 | 1985-10-15 | J. I. Case Company | Multi-surface stabilizer pad assembly |
| CN101219757A (en) * | 2008-01-29 | 2008-07-16 | 湖南三一起重机械有限公司 | Movable hoisting device supporting leg and movable hoisting device with the supporting leg |
| CN201484386U (en) * | 2009-05-31 | 2010-05-26 | 长沙中联重工科技发展股份有限公司 | Expansion leg |
| CN202439674U (en) * | 2012-02-10 | 2012-09-19 | 三一重工股份有限公司 | Supporting leg for engineering machinery and engineering machinery |
| CN204384767U (en) * | 2014-11-28 | 2015-06-10 | 徐州徐工随车起重机有限公司 | The lorry-mounted crane large span telescopic outrigger of single chamber nested type |
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 |
| CN109866690A (en) * | 2019-04-03 | 2019-06-11 | 徐工集团工程机械有限公司 | Engineering truck |
| CN111948340A (en) * | 2020-07-24 | 2020-11-17 | 江苏华诚自动化设备有限公司 | Toxic gas purification system and control method thereof |
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| PB01 | Publication | ||
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Application publication date: 20180320 |