CN106703107B - Excavator - Google Patents
Excavator Download PDFInfo
- Publication number
- CN106703107B CN106703107B CN201611209047.4A CN201611209047A CN106703107B CN 106703107 B CN106703107 B CN 106703107B CN 201611209047 A CN201611209047 A CN 201611209047A CN 106703107 B CN106703107 B CN 106703107B
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- China
- Prior art keywords
- hydraulic
- cylinder
- oil
- valve
- excavator
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- 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.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
Abstract
The present invention relates to excavators, cause climbing to be limited with lower mechanisms inclination for solution excavator upper mechanism, manipulation operation inconvenience；A kind of excavator is provided, including lower mechanisms and upper mechanism, lower mechanisms include central frame, it is fixed on the left and right walker of central frame two sides, pivoting support, at least two rows of hydraulic cylinders are equipped at the top of central frame, the cylinder barrel of all hydraulic oil cylinder is fixedly connected with central frame, the top of each hydraulic cylinder and hinged seat are hinged, the hinged seat for there was only a drain compressing cylinder piston rod part in each drain compressing cylinder is fixed hinge seat, hinged seat at the top of other hydraulic cylinder piston rods is moveable hinge joint chair, fixed hinge seat is fixedly connected with the pivoting support, moveable hinge joint chair is slidably connected with the guiding device on pivoting support.Excavator of the present invention improves the walking performance in hillside fields, keeps the climbing capacity of excavator more adaptable.
Description
Technical field
The present invention relates to a kind of Working machines, more specifically to a kind of excavator.
Background technique
Hydraulic crawler excavator as the main machine that a kind of fast and efficiently Construction Operating Machinery is in engineering machinery,
It is one of the main mechanical in restoration in earth-rock construction engineering, is known as " king of engineering machinery " in the industry, is widely used in work
The industries such as industry and civil buildings, communications and transportation, hydraulic and electric engineering engineering, farmland improvement, mine excavation and modernization military engineering
Mechanized construction in.
It include lower mechanisms and upper mechanism in existing excavator structure, excavator lower mechanisms include left and right walking
Frame and central frame, central frame and left and right walker are rigidly connected, and revolving support is installed on central frame, and upper mechanism returns
Turn to be mounted on revolving support.Upper mechanism makees circumferential revolution on revolving support, but does not have displacement movement on axial direction.
Excavator operating condition is complicated, and acutely, fierce vibration is transferred to upper mechanism by lower mechanisms, causes excavator for walking vibration
Operation annular is severe.In addition the various fuel tanks of excavator and liquid container are mounted on upper mechanism, when excavator is in slope surface
When operation or climbing, upper mechanism is integral inclined with lower mechanisms, in order to guarantee the normal work and digging of each liquid container
The safety of pick machine, the climbable gradient of usual limited digging machine, climbable gradient is usually no more than 35 °, while inclined upper mechanism makes
The body for obtaining operator also tilts therewith, makes troubles to machine manipulation operation.
Summary of the invention
The technical problem to be solved by the present invention is to cause to climb with lower mechanisms inclination for existing excavator upper mechanism
Limited, manipulation operation inconvenience problem, and the excavator of a kind of adjustable upper mechanism and horizontal plane inclination angle is provided.
The present invention is to realize that the technical solution of its purpose is such that provide a kind of excavator, including lower mechanisms and upper
Portion mechanism, lower mechanisms include central frame, left and right walker, the pivoting support for being fixed on central frame two sides, the top
Mechanism is pivotally mounted on the pivoting support, it is characterised in that at least two rows of hydraulic including being provided at the top of central frame
Oil cylinder, every drain compressing cylinder contain at least two hydraulic cylinder, and each drain compressing cylinder time interval is arranged, in every drain compressing cylinder
Each hydraulic cylinder or so be intervally arranged, all hydraulic oil cylinder arrangement and cylinder barrel is fixedly connected with central frame vertically, each
The top of hydraulic cylinder and hinged seat are hinged, and the hinged seat of an only drain compressing cylinder piston rod part is in each drain compressing cylinder
Fixed hinge seat, the hinged seat at the top of other hydraulic cylinder piston rods are moveable hinge joint chair, the fixed hinge seat with described time
Turn supporting and fixing connection, be equipped with the guiding device that corresponding each moveable hinge joint chair slides back and forth guiding in the bottom of pivoting support,
The moveable hinge joint chair is slidably connected with the guiding device, each hydraulic cylinder and the hydraulic control being mounted on upper mechanism
System connection.
Above-mentioned excavation machine, two rows of hydraulic cylinders are provided at the top of the central frame, and every row includes two hydraulic oil
Cylinder, four rectangular or square arrangements of hydraulic cylinder.
Above-mentioned excavation machine, each guiding device includes the guide groove that two front and backs are moved towards, in same guiding device
Two guide grooves notch level it is opposite, the moveable hinge joint chair include sliding panel and be fixed on sliding panel bottom surface for and institute
Articulated section hinged at the top of hydraulic cylinder piston rod is stated, the two sides of the sliding panel are inlaid in the guide groove.
Above-mentioned excavation machine, the end of the guide groove have the limited block for preventing the sliding panel from skidding off.
Above-mentioned excavation machine, the hydraulic cylinder in same row are parallel with one another.
Above-mentioned excavation machine, the hydraulic control system include hydraulic oil container, draw out of hydraulic oil container it is hydraulic have it is hydraulic
Pump, corresponding each drain compressing cylinder and the 3-position 4-way proportional servo valve being attached thereto, each 3-position 4-way proportional servo valve
Oil inlet is connected to hydraulic pump by the road, and the oil outlet of each 3-position 4-way proportional servo valve connects through fuel tank circuit and hydraulic oil container
Logical, two actuator ports of 3-position 4-way proportional servo valve are connected to by pipeline with the big chamber of corresponding hydraulic cylinder and small chamber.
Above-mentioned excavation machine is respectively connected with one between the actuator port and fuel tank circuit of each 3-position 4-way proportional servo valve
A overload oil compensating valve, the overload oil compensating valve are made of check valve and overflow valve in parallel.
Above-mentioned excavation machine is arranged on the oil circuit between hydraulic pump outlet and the oil inlet of 3-position 4-way proportional servo valve
There is overflow unloading valve, the overflow unloading valve is made of overflow valve and 2/2-way solenoid valve in parallel, the overflow unloading valve
Oil inlet end be connected to hydraulic pump outlet, the oil outlet of the overflow unloading valve and fuel tank circuit communication.
Compared with prior art, the present invention the invention has the following advantages that
When whole hydraulic cylinders are height-rise, complete machine height can be increased, increase and excavate range,
When excavator not level ground walk when, by control hydraulic cylinder can make upper mechanism be in level, mention
Height keeps the climbing capacity of excavator more adaptable in the walking performance in hillside fields, prevents the hydraulic spilling fuel tank of fuel tank, excavator from turning over
The effects of vehicle.
When proportional servo valve control oil cylinder plays vibration-damping function work, the vibration of complete machine can be reduced by cylinder buffer
The fatigue of structural member improves the service life of loom.
Detailed description of the invention
Fig. 1 is the hydraulic system principle figure of the hydraulic cylinder control of excavator of the present invention.
Fig. 2 is the scheme of installation of central frame and pivoting support in excavator of the present invention.
Fig. 3 is the scheme of installation of each component in the hydraulic system of hydraulic cylinder control in excavator of the present invention.
Fig. 4 is hydraulic cylinder and pivoting support connection schematic diagram in excavator of the present invention.
Fig. 5 is the connection schematic diagram of hydraulic cylinder and moveable hinge joint chair in excavator of the present invention.
Fig. 6 is the connection schematic diagram of hydraulic cylinder and fixed hinge seat in excavator of the present invention.
Fig. 7 is the structural schematic diagram of guiding device in excavator of the present invention.
Fig. 8 is the connection schematic diagram of excavator middle and lower part mechanism and upper mechanism of the present invention.
Parts title and serial number in figure:
It is front-seat hydraulic cylinder 1,3-position 4-way proportional servo valve 2, overflow unloading valve 3, hydraulic pump 4, swivel joint 5, hydraulic
Fuel tank 6, guide rail 8, bolt 9, limited block 10, moveable hinge joint chair 11, sliding panel 111, articulated section 112, is consolidated heel row hydraulic cylinder 7
Determine hinged seat 12, central frame 13, pivoting support 14, walker 15, revolving platform 16.
Specific embodiment
Illustrate specific embodiment with reference to the accompanying drawing.
As shown in figure 8, the excavator in the present embodiment, including lower mechanisms and upper mechanism, lower mechanisms include centre
Frame 13, the left and right walker 15 for being fixed on 13 two sides of central frame.Hydraulic motor travel motor and crawler belt are installed on walker 15.
Pivoting support 14 is installed at the top of central frame 13.Upper mechanism includes revolving platform 16 and the hair that is mounted on revolving platform
Motivation, equipment, driver's cabin, various fuel tanks etc..Revolving platform 16 is rotatable to be rotatably mounted on pivoting support 14.It is located at
Hydraulic system and control system on upper mechanism passes through swivel joint 5 and the hydraulic circuit being located in lower mechanisms and control system
The component of system connects.
As shown in Figure 2 and Figure 3, in the installation of the top of central frame 13, there are four hydraulic cylinder, four hydraulic cylinder front and rear rows
Cloth, every row two, four square arrangements of hydraulic cylinder, two hydraulic cylinders of front are front-seat hydraulic cylinder 1, rear portion
Two hydraulic cylinders are heel row hydraulic cylinder 7, and the hydraulic cylinder of same row is parallel with one another.The cylinder barrel of hydraulic cylinder by bolt with
Central frame is fixedly connected, so that hydraulic cylinder is straight up.
As shown in Fig. 5 Fig. 6, the piston rod part and moveable hinge joint chair 11 of heel row hydraulic cylinder 7 are hinged, front-seat hydraulic cylinder
1 piston rod part and fixed hinge seat 12 is hinged.
As shown in figure 4, fixed hinge seat 12 is fixedly connected by bolt with pivoting support 14, moveable hinge joint chair 11 is by leading
It is slidably connected to device and pivoting support 14.Guiding device there are two being correspondingly arranged in the bottom of pivoting support, with two heel row
Moveable hinge joint chair at the top of oil cylinder is corresponding.As shown in fig. 7, each guiding device includes two guide rails 8 disposed in parallel, guide rail
The top of the rectangular bending-like in 8 cross section, guide rail 8 is fixedly connected with the bottom surface of pivoting support 14, so that guide groove is formed, two
Root guide rail 8 is opposite with the guide groove level that pivoting support 14 is constituted.Moveable hinge joint chair 11 includes sliding panel 111 and is fixed on cunning
Movable plate bottom surface is used to be integrated knot with articulated section 112 hinged at the top of hydraulic cylinder piston rod, articulated section 112 and sliding panel 111
The two sides of structure, sliding panel 111 are inlaid in guide groove, and the end of guide groove has the limited block 10 for preventing sliding panel from skidding off,
The both ends of limited block are fixed on the end of two guide rails by bolt 9.
As shown in Figure 1, Figure 2, Figure 3 shows, hydraulic control system includes hydraulic oil container 6, out of hydraulic oil container 6 draws hydraulic oil liquid
Press pump 4, corresponding two 3-position 4-way proportional servo valves 2, Mei Gesan being connected with front-seat hydraulic cylinder 1 and heel row hydraulic cylinder 7
The oil inlet of position four-way proportional servo valve 2 is connected to hydraulic pump by the road, the oil outlet warp of each 3-position 4-way proportional servo valve
Fuel tank circuit is connected to hydraulic oil container 6, and two actuator ports of 3-position 4-way proportional servo valve 2 are corresponding by pipeline and 1 is front-seat
The big chamber of hydraulic cylinder or 7 heel row hydraulic cylinders is connected to small chamber.The actuator port and oil of each 3-position 4-way proportional servo valve 2
An overload oil compensating valve is respectively connected between case circuit, overload oil compensating valve is made of check valve and overflow valve in parallel.Hydraulic
Overflow unloading valve 3, overflow unloading valve 3 are provided on oil circuit between 4 outlet of pump and the oil inlet of 3-position 4-way proportional servo valve 2
It is made of overflow valve and 2/2-way solenoid valve in parallel, the oil inlet end of overflow unloading valve is connected to hydraulic pump outlet, and overflow is unloaded
The oil outlet and fuel tank circuit communication of lotus valve.
In the present invention, complete machine height is if desired adjusted, then hydraulic pump works, hydraulic oil passes through 3-position 4-way proportional servo
Valve enters front-seat hydraulic cylinder and heel row hydraulic cylinder, and the height such as four hydraulic cylinders wholes is stretched out or retraction, raises or drops
The height of low pivoting support, to raise or reduce the height of upper mechanism.If excavator passes through in slope surface walking or operation
3-position 4-way proportional servo valve controls the not equal highland of front-seat hydraulic cylinder and heel row hydraulic cylinder and stretches out or bounce back, so that meeting
Dress bearing, to improve the walking performance in hillside fields, keeps the climbing capacity of excavator more adaptable, prevents fuel tank in level
The effects of hydraulic spilling fuel tank, excavator overturn.When stretching out to front-seat hydraulic cylinder and heel row hydraulic cylinder Length discrepancy, moveable hinge
Joint chair and fixed hinge seat are hingedly rotated with the piston rod part of hydraulic cylinder, and moveable hinge joint chair slides in guiding device.
In the present embodiment, front-seat oil cylinder and heel row oil cylinder each two, in the specific implementation, the hydraulic cylinder of every row can be with
It is three or four or even more.Three rows or the even more plurality of rows of hydraulic cylinder of four rows equally also can be set, but multiple rows of
In hydraulic cylinder, hinged hinged seat is fixed hinge seat at the top of an only drain compressing cylinder, other hydraulic cylinders top is hinged
Be can with pivoting support slide moveable hinge joint chair.
Claims (8)
1. a kind of excavator, including lower mechanisms and upper mechanism, lower mechanisms include central frame, are fixed on central frame
The left walker and right walker, pivoting support of two sides, the upper mechanism are pivotally mounted on the pivoting support, feature
It is to include that at least two rows of hydraulic cylinders are provided at the top of central frame, every drain compressing cylinder contains at least two hydraulic oil
Cylinder, each drain compressing cylinder time interval are arranged, and each hydraulic cylinder or so in every drain compressing cylinder is intervally arranged, all hydraulic oil
Cylinder is arranged vertically and cylinder barrel is fixedly connected with central frame, and the top of each hydraulic cylinder and hinged seat are hinged, each drain pressure
Only have the hinged seat of a drain compressing cylinder piston rod part for fixed hinge seat in oil cylinder, at the top of other hydraulic cylinder piston rods
Hinged seat is moveable hinge joint chair, and the fixed hinge seat is fixedly connected with the pivoting support, is equipped in the bottom of pivoting support
Corresponding each moveable hinge joint chair slides back and forth the guiding device of guiding, and the moveable hinge joint chair and guiding device sliding connect
It connects, each hydraulic cylinder is connect with the hydraulic control system being mounted on upper mechanism.
2. excavator according to claim 1, it is characterised in that be provided with two rows of hydraulic oil at the top of the central frame
Cylinder, every row include two hydraulic cylinders, four rectangular or square arrangements of hydraulic cylinder.
3. excavator according to claim 1 or 2, it is characterised in that each guiding device includes two front and back trends
Guide groove, the notch level of two guide grooves in same guiding device is opposite, the moveable hinge joint chair include sliding panel and
Sliding panel bottom surface is fixed on for the articulated section hinged with the hydraulic cylinder piston rod top, the two sides of the sliding panel are embedding
In the guide groove.
4. excavator according to claim 3, it is characterised in that the end of the guide groove have prevent the sliding panel
The limited block skidded off.
5. excavator according to claim 3, it is characterised in that the hydraulic cylinder in same row is parallel with one another.
6. excavator according to claim 5, it is characterised in that the hydraulic control system includes hydraulic oil container, from hydraulic
Hydraulic oil liquid press pump, corresponding each drain compressing cylinder and the 3-position 4-way proportional servo valve being attached thereto are drawn in fuel tank, each
The oil inlet of 3-position 4-way proportional servo valve is connected to hydraulic pump by the road, the oil outlet warp of each 3-position 4-way proportional servo valve
Fuel tank circuit is connected to hydraulic oil container, and two actuator ports of 3-position 4-way proportional servo valve pass through pipeline and corresponding hydraulic cylinder
Big chamber be connected to small chamber.
7. excavator according to claim 6, it is characterised in that the actuator port of each 3-position 4-way proportional servo valve with
An overload oil compensating valve is respectively connected between fuel tank circuit, the overload oil compensating valve is made of check valve and overflow valve in parallel.
8. excavator according to claim 6 or 7, it is characterised in that in hydraulic pump outlet and 3-position 4-way proportional servo valve
Oil inlet between oil circuit on be provided with overflow unloading valve, the overflow unloading valve is by overflow valve and 2/2-way electricity in parallel
Magnet valve is constituted, and the oil inlet end of the overflow unloading valve is connected to hydraulic pump outlet, the oil outlet and fuel tank of the overflow unloading valve
Circuit communication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611209047.4A CN106703107B (en) | 2016-12-23 | 2016-12-23 | Excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611209047.4A CN106703107B (en) | 2016-12-23 | 2016-12-23 | Excavator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106703107A CN106703107A (en) | 2017-05-24 |
| CN106703107B true CN106703107B (en) | 2019-07-30 |
Family
ID=58895711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611209047.4A Active CN106703107B (en) | 2016-12-23 | 2016-12-23 | Excavator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106703107B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114197551B (en) * | 2021-11-23 | 2022-11-22 | 中煤科工集团沈阳设计研究院有限公司 | Discharge arm slewing mechanism for wheel bucket excavator |
| CN114293987B (en) * | 2021-11-23 | 2023-11-10 | 中煤科工集团沈阳设计研究院有限公司 | Wheel bucket excavator suitable for excavating harder materials |
| CN114320300B (en) * | 2021-11-23 | 2023-09-22 | 中煤科工集团沈阳设计研究院有限公司 | Wheel bucket excavator suitable for excavating viscous materials |
| CN115288222A (en) * | 2022-06-29 | 2022-11-04 | 上海常田实业有限公司 | High-flexibility electric excavator |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002275931A (en) * | 2001-03-22 | 2002-09-25 | Komatsu Ltd | Dual tilt control apparatus for operating vehicle |
| EP1413683A1 (en) * | 2002-10-23 | 2004-04-28 | Komatsu Ltd | Work vehicle with tilt floor |
| CN203716210U (en) * | 2013-12-21 | 2014-07-16 | 安徽合矿机械股份有限公司 | Telescopic amphibious dual-purpose track hydraulic excavator capable of freely lifting |
| CN204038998U (en) * | 2014-08-07 | 2014-12-24 | 徐州重型机械有限公司 | A kind of engineering truck and leveling turntable device thereof |
-
2016
- 2016-12-23 CN CN201611209047.4A patent/CN106703107B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002275931A (en) * | 2001-03-22 | 2002-09-25 | Komatsu Ltd | Dual tilt control apparatus for operating vehicle |
| EP1413683A1 (en) * | 2002-10-23 | 2004-04-28 | Komatsu Ltd | Work vehicle with tilt floor |
| CN203716210U (en) * | 2013-12-21 | 2014-07-16 | 安徽合矿机械股份有限公司 | Telescopic amphibious dual-purpose track hydraulic excavator capable of freely lifting |
| CN204038998U (en) * | 2014-08-07 | 2014-12-24 | 徐州重型机械有限公司 | A kind of engineering truck and leveling turntable device thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106703107A (en) | 2017-05-24 |
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