CN110131245A - Engineering machinery - Google Patents
Engineering machinery Download PDFInfo
- Publication number
- CN110131245A CN110131245A CN201910536341.3A CN201910536341A CN110131245A CN 110131245 A CN110131245 A CN 110131245A CN 201910536341 A CN201910536341 A CN 201910536341A CN 110131245 A CN110131245 A CN 110131245A
- Authority
- CN
- China
- Prior art keywords
- cylinder
- oil cylinder
- engineering machinery
- extension sleeve
- ontology
- 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.)
- Pending
Links
- 238000010586 diagram Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000036244 malformation Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
- E04G21/04—Devices for both conveying and distributing
- E04G21/0418—Devices for both conveying and distributing with distribution hose
- E04G21/0436—Devices for both conveying and distributing with distribution hose on a mobile support, e.g. truck
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
Abstract
The present invention discloses a kind of engineering machinery, including ontology and for multiple vertical legs by ontology support on the ground, the vertical leg includes: extension sleeve, it is arranged in a vertical direction, including the first cylinder and the second cylinder, second barrel jacket opposite can be slided in first cylinder with first cylinder, one in both first cylinder and second cylinder is used to connect with the ontology, another in the two is used to support on the ground；Oil cylinder is set in the extension sleeve, including cylinder barrel and piston rod, the both ends of the oil cylinder and the both ends of the extension sleeve are separately connected, to drive second cylinder flexible relative to first cylinder.Oil cylinder in the vertical leg of the engineering machinery bears that moment of flexure is small, performance is stable, compact-sized.
Description
Technical field
The present invention relates to field of work machines, in particular to a kind of engineering machinery.
Background technique
Many engineering machinery such as concrete mixer takes the vertical leg with oil cylinder to support its smooth working.Work
When, under the influence of complete machine immense pressure, supporting leg can generate biggish bending deflection as a kind of elongated rod shape supporting structure, be mounted on
The oil cylinder of leg structure end will generate certain inclination and cannot keep vertical state, as shown in Figure 1, complete machine acts on vertical branch
One moment M of leg structure generates horizontal direction dislocation X between 2 ' fixing end of oil cylinder and leg disc after the deformation of vertical leg structural bending,
At this moment oil cylinder 2 ' is subjected to axial bearing load, and also because malformation generates moment of flexure, this is to oil cylinder structural behaviour itself
One test, the asymmetry of vertical leg itself and the uncertainty of various working environments, oil cylinder 2 ' will be born more in addition
Big moment of flexure.This will undoubtedly have an adverse effect to the security performance of oil cylinder 2 ', 2 ' stability of oil cylinder reduce, cylinder barrel, piston and
Its sealing element influences the service performance of oil cylinder for larger radial load is born.
For the safe handling for guaranteeing Vertical Cylinders, designer need to set higher when being designed for the oil cylinder of vertical leg
Safety coefficient cope with the influences of some uncertain factors, with the raising of safety coefficient, oil cylinder 2 ' diameter itself and weight
Increase therewith.In the multi-stage expansion leg structure of some rice number pump trucks, when vehicle driving, needs vertical leg is complete
It withdraws, as shown in Figure 2 and Figure 3, to guarantee that the vertical leg equipped with oil cylinder 2 ' is retracted to inside upper level supporting leg, upper level supporting leg
Bottom plate need to accordingly be cut, and reserved opening 10 ' is formed, and with the increase of 2 ' volume of oil cylinder, upper level supporting leg cut lengths
It increases with it, this will sacrifice leg structure intensity itself to a certain extent.
Therefore, it is necessary to optimize the vertical leg structure with oil cylinder.
Summary of the invention
The purpose of the present invention is to provide a kind of engineering machinery, the oil cylinder in the vertical leg of the engineering machinery bears moment of flexure
It is small, performance is stable, compact-sized.
The present invention discloses a kind of engineering machinery, including ontology and for by ontology support on the ground multiple vertical
Supporting leg, the vertical leg include:
Extension sleeve is arranged in a vertical direction, including the first cylinder and the second cylinder, and second barrel jacket is described
In one cylinder, opposite it can be slided with first cylinder, one in both first cylinder and second cylinder is used for
It is connect with the ontology, another in the two is used to support on the ground；
Oil cylinder is set in the extension sleeve, including cylinder barrel and piston rod, the both ends of the oil cylinder and the extension sleeve
Both ends be separately connected, to drive second cylinder flexible relative to first cylinder.
In some embodiments, the both ends of the oil cylinder and at least one end at the both ends of the extension sleeve are hinged.
In some embodiments, at least one end at the both ends of the oil cylinder and the both ends of the extension sleeve is connected by pin shaft
It connects.
In some embodiments, at least one end at the both ends of the oil cylinder and the both ends of the extension sleeve is connected by flexural pivot
It connects.
In some embodiments, there are gaps for the inner surface of the outer surface of the oil cylinder and the extension sleeve.
In some embodiments, the engineering machinery is concrete mixer.
In some embodiments, the concrete mixer includes the telescopic legs structure connecting with the ontology, described
Telescopic legs structure includes being distributed at least one level horizontal support legs set in the horizontal direction, the vertical leg and described at least one
The final stage horizontal support legs connection of grade horizontal support legs.
Based on engineering machinery provided by the invention, by being arranged the oil cylinder of vertical leg in extension sleeve, using stretching
Contracting sleeve bears the moment of flexure that engineering machinery ontology passes over, so as to improve vertical leg oil cylinder stress performance,
The structure size that can reduce oil cylinder simultaneously, keeps vertical leg structure more compact.
By referring to the drawings to the detailed description of exemplary embodiment of the present invention, other feature of the invention and its
Advantage will become apparent.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, this hair
Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:
Structural schematic diagram when Fig. 1 is the bending moment effect of the vertical leg of the prior art；
Fig. 2 is structural schematic diagram when vertical leg is shunk in the multi-stage expansion leg structure of the prior art；
Fig. 3 is the partial enlargement structural representation in the portion H in multi-stage expansion leg structure shown in Fig. 2；
Fig. 4 is the structural schematic diagram of the vertical leg of the engineering machinery of the embodiment of the present invention；
Fig. 5 is the structural schematic diagram of the vertical leg of the engineering machinery of another embodiment；
Fig. 6 is the decomposition texture schematic diagram of vertical leg shown in fig. 5.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Below
Description only actually at least one exemplary embodiment be it is illustrative, never as to the present invention and its application or make
Any restrictions.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Under every other embodiment obtained, shall fall within the protection scope of the present invention.
Unless specifically stated otherwise, positioned opposite, the digital table of the component and step that otherwise illustrate in these embodiments
It is not limited the scope of the invention up to formula and numerical value.Simultaneously, it should be appreciated that for ease of description, each portion shown in attached drawing
The size divided not is to draw according to actual proportionate relationship.For technology, side known to person of ordinary skill in the relevant
Method and equipment may be not discussed in detail, but in the appropriate case, and the technology, method and apparatus should be considered as authorizing explanation
A part of book.In shown here and discussion all examples, any occurrence should be construed as merely illustratively, and
Not by way of limitation.Therefore, the other examples of exemplary embodiment can have different values.It should also be noted that similar label
Similar terms are indicated in following attached drawing with letter, therefore, once it is defined in a certain Xiang Yi attached drawing, then subsequent attached
It does not need that it is further discussed in figure.
For ease of description, spatially relative term can be used herein, as " ... on ", " ... top ",
" ... upper surface ", " above " etc., for describing such as a device shown in the figure or feature and other devices or spy
The spatial relation of sign.It should be understood that spatially relative term is intended to comprising the orientation in addition to device described in figure
Except different direction in use or operation.For example, being described as if the device in attached drawing is squeezed " in other devices
It will be positioned as " under other devices or construction after part or construction top " or the device of " on other devices or construction "
Side " or " under other devices or construction ".Thus, exemplary term " ... top " may include " ... top " and
" in ... lower section " two kinds of orientation.The device can also be positioned with other different modes and (is rotated by 90 ° or in other orientation), and
And respective explanations are made to the opposite description in space used herein above.
The engineering machinery of the present embodiment includes ontology and for by ontology support multiple vertical legs on the ground.Such as figure
4 to shown in Fig. 6, and vertical leg includes extension sleeve and oil cylinder 2.Extension sleeve is arranged in a vertical direction, including 1 He of the first cylinder
Second cylinder 2, the second 2 sets of cylinder, can opposite sliding, the first cylinder 1 and the second cylinders 2 with the first cylinder 1 in the first cylinder 1
One in the two is used to connect with ontology, another in the two is used to support on the ground；Oil cylinder 2 is set to extension sleeve
It is interior, including cylinder barrel and piston rod, the both ends of oil cylinder 2 and the both ends of extension sleeve are separately connected, with drive the second cylinder 2 relative to
First cylinder 1 is flexible.
Engineering machinery can be pump truck, crane etc., at work on the ground by the support of multiple vertical legs.It is propping up
When support, extension sleeve can be the first cylinder 1 and ground face contact, and on the ground, the second cylinder 2 is connect with ontology for support, or
It is the second cylinder 2 and ground face contact, on the ground, the first cylinder 1 is connect with ontology for support.Oil cylinder 2 is located at the interior of extension sleeve
Portion, including cylinder barrel and piston rod, one end of the cylinder barrel of oil cylinder 2 can be with the first cylinder 1 and the one of cylinders of the second cylinder 2
End connection, then the other end of the piston rod of oil cylinder 2 is connect with the end of another cylinder.The both ends of oil cylinder 2 and extension sleeve
Connection may be a fixed connection it is either hinged.Vertical leg is telescopic structure along the vertical direction, passes through stretching for oil cylinder 2
Contracting can drive the first cylinder 1 being separately connected with the both ends of oil cylinder 2 and the opposite sliding of the second cylinder 2, to realize flexible
Sleeve stretches.In support, the support force on ground is transmitted to and is stretched by the first cylinder 1 or the second cylinder 2 with ground face contact
Then oil cylinder 2 in contracting sleeve is transmitted to the first cylinder 1 or the second cylinder 2 connecting with engineering machinery ontology by oil cylinder 2,
The support to engineering machinery ontology is realized by the first cylinder 1 connecting with engineering machinery ontology or the second cylinder 2.
The engineering machinery of the present embodiment may be implemented vertical by being arranged the oil cylinder 2 of vertical leg in extension sleeve
Supporting leg stretches.Simultaneously because extension sleeve is set in outside oil cylinder 2, and when being supported to engineering machinery, engineering machinery ontology
The moment of flexure for being transmitted to vertical leg is mainly born by mutually matched first cylinder 1 and the second cylinder 2, so that oil cylinder 2 is main
Bear the axial force supported to engineering machinery, less receiving Moment.So as to protect oil cylinder 2, improve the stress of oil cylinder 2
Environment, the moment of flexure that reduction is transmitted to oil cylinder 2 can reduce the radial load of the receiving of oil cylinder 2, can improve the oil cylinder 2 of vertical leg
Stress performance, to improve the stability and safety when oil cylinder 2 works.In design, so as to reduce the structure of oil cylinder 2
Size keeps vertical leg structure more compact.
In some embodiments, as shown in Figures 4 to 6, at least one end hinge at the both ends at the both ends and extension sleeve of oil cylinder 2
It connects.Oil cylinder 2 can be hinged with the end of one end and extension sleeve, can also be hinged with extension sleeve with both ends.The end of oil cylinder 2 with
Extension sleeve is hinged, can be further reduced the moment of flexure that extension sleeve is transmitted to oil cylinder 2, further improves oil cylinder 2 to stress ring
Border further increases the job security and stability of oil cylinder 2, is conducive to the structure size that oil cylinder 2 is further reduced when design.
In some embodiments, as shown in Figures 4 to 6, at least one end at the both ends at the both ends and extension sleeve of oil cylinder 2 is logical
Cross pin shaft connection.The both ends of oil cylinder 2 and the both ends of extension sleeve are connected by pin shaft, can make the company of oil cylinder 2 Yu extension sleeve
Binding structure simplifies, and helps to keep vertical leg compact-sized.
In some embodiments, at least one end at the both ends at the both ends and extension sleeve of oil cylinder 2 is connected by flexural pivot.This sets
It is equipped with and helps be further reduced the moment of flexure that oil cylinder 2 is born, further improve the force environment of oil cylinder 2.
In some embodiments, there are gaps for the inner surface of the outer surface of oil cylinder 2 and extension sleeve.The setting helps
In preventing extension sleeve from transmitting moment of flexure from inner surface to oil cylinder 2, it is further reduced the moment of flexure that oil cylinder 2 is born, is further changed
The force environment of kind oil cylinder 2.
In some embodiments, engineering machinery is concrete mixer.
In some embodiments, concrete mixer includes the telescopic legs structure connecting with ontology, telescopic legs knot
Structure includes being distributed at least one level horizontal support legs set in the horizontal direction, and the final stage of vertical leg and at least one level horizontal support legs is horizontal
Supporting leg connection.Just as described in the background section, in order to withdraw vertical leg, meeting cut portion plate on final stage horizontal support legs,
Reserved space after being placed in the scheme in extension sleeve using oil cylinder, can reduce the structure of vertical leg in this embodiment
Size makes vertical leg more compact structure, to also reduce reserved space, reduces to the plate cutting on final stage horizontal support legs,
Improve the structural strength of telescopic legs structure.
Finally it should be noted that: the above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof；To the greatest extent
The present invention is described in detail with reference to preferred embodiments for pipe, it should be understood by those ordinary skilled in the art that: still
It can modify to a specific embodiment of the invention or some technical features can be equivalently replaced；Without departing from this hair
The spirit of bright technical solution should all cover within the scope of the technical scheme claimed by the invention.
Claims (7)
1. a kind of engineering machinery, including ontology and for multiple vertical legs by ontology support on the ground, feature
It is, the vertical leg includes:
Extension sleeve is arranged in a vertical direction, including the first cylinder (1) and the second cylinder (2), and second cylinder (2) covers
It, can opposite sliding, first cylinder (1) and second cylinder with first cylinder (1) in first cylinder (1)
(2) for connecting with the ontology, another in the two is used to support on the ground one in the two；
Oil cylinder (3) is set in the extension sleeve, including cylinder barrel and piston rod, the both ends of the oil cylinder (3) and the telescopic
The both ends of cylinder are separately connected, to drive second cylinder (2) flexible relative to first cylinder (1).
2. engineering machinery as described in claim 1, which is characterized in that the both ends of the oil cylinder (3) and the extension sleeve
At least one end at both ends is hinged.
3. engineering machinery as described in claim 1 or 2 is any, which is characterized in that stretch with described at the both ends of the oil cylinder (3)
At least one end at the both ends of sleeve is connected by pin shaft.
4. engineering machinery as described in claim 1 or 2 is any, which is characterized in that stretch with described at the both ends of the oil cylinder (3)
At least one end at the both ends of sleeve is connected by flexural pivot.
5. engineering machinery as described in claim 1 or 2 is any, which is characterized in that the outer surface of the oil cylinder (3) with it is described
There are gaps for the inner surface of extension sleeve.
6. engineering machinery as described in claim 1 or 2 is any, which is characterized in that the engineering machinery is concrete mixer.
7. engineering machinery as claimed in claim 6, which is characterized in that the concrete mixer includes connecting with the ontology
Telescopic legs structure, the telescopic legs structure includes being distributed at least one level horizontal support legs set in the horizontal direction, described
Vertical leg is connect with the final stage horizontal support legs of at least one level horizontal support legs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910536341.3A CN110131245A (en) | 2019-06-20 | 2019-06-20 | Engineering machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910536341.3A CN110131245A (en) | 2019-06-20 | 2019-06-20 | Engineering machinery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110131245A true CN110131245A (en) | 2019-08-16 |
Family
ID=67578228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910536341.3A Pending CN110131245A (en) | 2019-06-20 | 2019-06-20 | Engineering machinery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110131245A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110148073A1 (en) * | 2009-12-22 | 2011-06-23 | David How-Hwa Hwang | Rear Outrigger for Wrecker |
| CN102529908A (en) * | 2012-02-03 | 2012-07-04 | 中联重科股份有限公司 | Supporting device and engineering machinery vehicle |
| CN203496867U (en) * | 2013-10-18 | 2014-03-26 | 中联重科股份有限公司 | Supporting leg structure and engineering machine |
| WO2014079248A1 (en) * | 2012-11-26 | 2014-05-30 | 徐州徐工随车起重机有限公司 | Skid-proof support leg apparatus and mobile machinery |
| CN210050134U (en) * | 2019-06-20 | 2020-02-11 | 徐州徐工施维英机械有限公司 | Construction machine |
-
2019
- 2019-06-20 CN CN201910536341.3A patent/CN110131245A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110148073A1 (en) * | 2009-12-22 | 2011-06-23 | David How-Hwa Hwang | Rear Outrigger for Wrecker |
| CN102529908A (en) * | 2012-02-03 | 2012-07-04 | 中联重科股份有限公司 | Supporting device and engineering machinery vehicle |
| WO2014079248A1 (en) * | 2012-11-26 | 2014-05-30 | 徐州徐工随车起重机有限公司 | Skid-proof support leg apparatus and mobile machinery |
| CN203496867U (en) * | 2013-10-18 | 2014-03-26 | 中联重科股份有限公司 | Supporting leg structure and engineering machine |
| CN210050134U (en) * | 2019-06-20 | 2020-02-11 | 徐州徐工施维英机械有限公司 | Construction machine |
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