CN109469129A - A kind of excavator - Google Patents
A kind of excavator Download PDFInfo
- Publication number
- CN109469129A CN109469129A CN201811417512.2A CN201811417512A CN109469129A CN 109469129 A CN109469129 A CN 109469129A CN 201811417512 A CN201811417512 A CN 201811417512A CN 109469129 A CN109469129 A CN 109469129A
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- CN
- China
- Prior art keywords
- cylinder
- bucket
- arm
- support
- dipper
- 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.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
- E02F3/38—Cantilever beams, i.e. booms;, e.g. manufacturing processes, forms, geometry or materials used for booms; Dipper-arms, e.g. manufacturing processes, forms, geometry or materials used for dipper-arms; Bucket-arms
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Shovels (AREA)
Abstract
The invention discloses a kind of excavators, excavator has job platform, swing arm, dipper and scraper bowl, the first boom cylinder and the second boom cylinder are provided at left and right sides of swing arm, swing arm front end is provided with first support arm and second support arm, first support arm is arranged in parallel with second support arm, driving gear is provided on the inside of second support arm, driving gear connects motor, driven gear is provided on the inside of first support arm, cavity is provided on dipper, the rear end sides of dipper are provided with fixed gear, fixed gear is fixed on dipper, bucket cylinder is provided in cavity, the front end of bucket cylinder is connected with oscillating rod, the two sides up and down of bucket cylinder are provided with the first rotary oil cylinder and the second rotary oil cylinder, scraper bowl has connecting plate, connecting plate connection connection frame, the two sides of connection frame are provided with the first bucket tooth and the second bucket tooth, rubber is provided on connection frame Bucket body.The present invention effectively can easily carry out the left and right commutation of scraper bowl, do not need excavator and carry out rotary motion, can reduce revolution in the case where not needing and excavating, energy saving.
Description
Technical field
The present invention relates to excavator fields, and in particular to a kind of excavator.
Background technique
Excavator has crawler belt, top carrying platform and driver's cabin, and swing arm is provided on the carrying platform of top, swing arm
Front end is connected with dipper, and the front end of dipper is connected with scraper bowl.The hydraulic Chuck Steak of excavator required consumption when being turned round,
And the hydraulic oil of waste will be more, due to being provided with many workpieces on the carrying platform of excavator, have in revolution
Very strong inertia force causes revolution to be oil liquid consumption and waste most operations.There is the method for many revolution energy storage at present.
Summary of the invention
The present invention to solve the above-mentioned problems, provides another solution, and a kind of excavator can be realized two-way friendship
Temporary substitute is made.
The present invention is specifically implemented with the following technical solutions,
A kind of excavator, the excavator have job platform 1, swing arm 2, dipper 3 and scraper bowl 4, the left and right sides of the swing arm 2
It is provided with the first boom cylinder 5 and the second boom cylinder 6,
The swing arm 2 has swing arm ontology 2.1, and the front end of the swing arm ontology 2.1 is provided with first support arm 2.2 and second support arm
2.3, the first support arm 2.2 is arranged in parallel with second support arm 2.3, and the inside of the second support arm 2.3 is provided with driving gear
2.4, the driving gear 2.4 connects motor 2.5, and the inside of the first support arm 2.2 is provided with driven gear 2.6, and first
Bucket arm cylinder support 2.7 is provided between arm 2.2 and second support arm 2.3, one end of bucket arm cylinder 7 is connected to bucket arm cylinder support
On 2.7,
Cavity 3.1 is provided on the dipper 3, the rear end sides of the dipper 3 are provided with fixed gear 3.2, the fixed tooth
Wheel 3.2 is fixed on dipper 3, will not be rotated relative to dipper, and bucket cylinder 8, the scraper bowl oil are provided in the cavity 3.1
The front end of cylinder 8 is connected with oscillating rod 9, and the two sides up and down of the bucket cylinder 8 are provided with the first rotary oil cylinder 8.1 and the second rotation
Oil cylinder 8.2,
Described first rotary oil cylinder, 8.1 one end is connected on the first support 8.3 on dipper 3, and the other end is connected to setting and is shoveling
On the first hinged seat 8.5 to struggle against on the cylinder barrel of oil cylinder 8,
Described second rotary oil cylinder, 8.2 one end is connected on the second support 8.4 on dipper 3, and the other end is connected to setting and is shoveling
On the second hinged seat 8.6 to struggle against on the cylinder barrel of oil cylinder 8,
The bucket cylinder 8 and the axis of 9 junction of oscillating rod are provided with the first linkage seat 8.7 and the second linkage seat in two sides up and down
8.8, the dipper 3 is respectively arranged with the first sliding rail 3.3 and the second sliding rail 3.5 in the two sides up and down at the scraper bowl 4, and described the
It is provided with first slide 3.4 on one sliding rail 3.3, is provided with second slide 3.6 on second sliding rail 3.5,
The scraper bowl 4 has connecting plate 4.1, the connection of the connecting plate 4.1 connection frame 4.2, the two sides setting of the connection frame 4.2
There are the first bucket tooth 4.3 and the second bucket tooth 4.4, rubber bucket body 4.5 is provided on the connection frame 4.2, is set on the connecting plate 4.1
It is equipped with attachment base 4.6, the two sides of the attachment base 4.6 are provided with the first hinged seat 4.7 and the second hinged seat 4.8, and described first
Hinged seat 4.7 connects one end of the first interlocking bar 8.11, and the other end of first interlocking bar 8.11 connects the first connecting shaft
8.9, second hinged seat 4.8 connects one end of the second interlocking bar 8.12, the other end connection of second interlocking bar 8.12
Second connecting shaft 8.10.
Further, the first sliding block 3.4, which is used to support, fixes the first connecting shaft 8.9, and can follow the first interlocking bar
Sliding of 8.11 movement on the first sliding rail 3.3,
Second sliding block 3.6, which is used to support, fixes the second connecting shaft 8.10, and the movement of the second interlocking bar 8.12 can be followed
Sliding on two sliding rails 3.5.
Further, first linkage seat 8.7, which is used to support, fixes the first connecting shaft 8.9, and the first connecting shaft 8.9 can
It is rotated in the first linkage seat 8.7,
Second linkage seat 8.8, which is used to support, fixes the second connecting shaft 8.10, and the second connecting shaft 8.10 can be in the second linkage
It is rotated on seat 8.8.
Further, first sliding rail 3.3 has two, is parallel to each other, and is arranged in the two sides of cavity 3.1, and described the
There are two the corresponding settings of one slide 3.4.
Further, second sliding rail 3.5 has two, is parallel to each other, and is arranged in the two sides of cavity 3.1, and described the
There are two the corresponding settings of two slide 3.6.
Further, the oscillating rod 9 connects rotary shaft 10, and the rotary shaft 10 is arranged in cavity 3.1.
The present invention effectively can easily carry out the left and right commutation of scraper bowl, do not need excavator and carry out rotary motion, not
It needs that revolution can be reduced in the case where excavating, it is energy saving.
Detailed description of the invention
Fig. 1 excavator structure schematic diagram of the present invention；
Fig. 2 boom structure schematic diagram of the present invention；
Fig. 3 swing arm overlooking structure diagram of the present invention；
Fig. 4 bucket rod structure schematic diagram of the present invention；
Fig. 5 dipper overlooking structure diagram of the present invention；
Fig. 6 oscillating rod junction structural schematic diagram of the present invention；
Fig. 7 oscillating rod junction overlooking structure diagram of the present invention；
Fig. 8 bucket rod structure schematic diagram of the present invention；
Fig. 9 bucket configuration schematic diagram of the present invention；
Figure 10 present hydraulic system figure；
Job platform 1, swing arm 2, dipper 3, scraper bowl 4, the first boom cylinder 5, the second boom cylinder 6, bucket arm cylinder 7, shovel in figure
Struggle against oil cylinder 8, swing arm ontology 2.1, first support arm 2.2, second support arm 2.3, driving gear 2.4, motor 2.5, driven gear 2.6,
Bucket arm cylinder support 2.7, cavity 3.1, fixed gear 3.2,
First rotary oil cylinder 8.1, the second rotary oil cylinder 8.2, the first support 8.3, the second support 8.4, the first hinged seat 8.5,
Two hinged seats 8.6, the first linkage seat 8.7, the second linkage seat 8.8, the first sliding rail 3.3, first slide 3.4, the second sliding rail 3.5,
Second slide 3.6, the first connecting shaft 8.9, the second connecting shaft 8.10, the first interlocking bar 8.11, the second interlocking bar 8.12,
Connecting plate 4.1, connection frame 4.2, the first bucket tooth 4.3, the second bucket tooth 4.4, rubber bucket body 4.5, attachment base 4.6, first are cut with scissors
Joint chair 4.7, the second hinged seat 4.8, oscillating rod 9, rotary shaft 10, fuel tank 101, filter 102, the first check valve 103, variable pump
104, second one-way valve 105, motor 106, overflow valve 107, the first reversal valve 108, the second reversal valve 109, third reversal valve
110, the 4th reversal valve 111, the 5th reversal valve 112, the 6th reversal valve 113.
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.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
As shown in figs 1-9, a kind of excavator, the excavator have job platform 1, swing arm 2, dipper 3 and scraper bowl 4, institute
The left and right sides for stating swing arm 2 is provided with the first boom cylinder 5 and the second boom cylinder 6,
The swing arm 2 has swing arm ontology 2.1, and the front end of the swing arm ontology 2.1 is provided with first support arm 2.2 and second support arm
2.3, the first support arm 2.2 is arranged in parallel with second support arm 2.3, and the inside of the second support arm 2.3 is provided with driving gear
2.4, the driving gear 2.4 connects motor 2.5, and the inside of the first support arm 2.2 is provided with driven gear 2.6, and first
Bucket arm cylinder support 2.7 is provided between arm 2.2 and second support arm 2.3, one end of bucket arm cylinder 7 is connected to bucket arm cylinder support
On 2.7,
Cavity 3.1 is provided on the dipper 3, the rear end sides of the dipper 3 are provided with fixed gear 3.2, the fixed tooth
Wheel 3.2 is fixed on dipper 3, will not be rotated relative to dipper, and bucket cylinder 8, the scraper bowl oil are provided in the cavity 3.1
The front end of cylinder 8 is connected with oscillating rod 9, and the two sides up and down of the bucket cylinder 8 are provided with the first rotary oil cylinder 8.1 and the second rotation
Oil cylinder 8.2,
Described first rotary oil cylinder, 8.1 one end is connected on the first support 8.3 on dipper 3, and the other end is connected to setting and is shoveling
On the first hinged seat 8.5 to struggle against on the cylinder barrel of oil cylinder 8,
Described second rotary oil cylinder, 8.2 one end is connected on the second support 8.4 on dipper 3, and the other end is connected to setting and is shoveling
On the second hinged seat 8.6 to struggle against on the cylinder barrel of oil cylinder 8,
The bucket cylinder 8 and the axis of 9 junction of oscillating rod are provided with the first linkage seat 8.7 and the second linkage seat in two sides up and down
8.8, the dipper 3 is respectively arranged with the first sliding rail 3.3 and the second sliding rail 3.5 in the two sides up and down at the scraper bowl 4, and described the
It is provided with first slide 3.4 on one sliding rail 3.3, is provided with second slide 3.6 on second sliding rail 3.5,
The scraper bowl 4 has connecting plate 4.1, the connection of the connecting plate 4.1 connection frame 4.2, the two sides setting of the connection frame 4.2
There are the first bucket tooth 4.3 and the second bucket tooth 4.4, rubber bucket body 4.5 is provided on the connection frame 4.2, is set on the connecting plate 4.1
It is equipped with attachment base 4.6, the two sides of the attachment base 4.6 are provided with the first hinged seat 4.7 and the second hinged seat 4.8, and described first
Hinged seat 4.7 connects one end of the first interlocking bar 8.11, and the other end of first interlocking bar 8.11 connects the first connecting shaft
8.9, second hinged seat 4.8 connects one end of the second interlocking bar 8.12, the other end connection of second interlocking bar 8.12
Second connecting shaft 8.10.
Further, the first sliding block 3.4, which is used to support, fixes the first connecting shaft 8.9, and can follow the first interlocking bar
Sliding of 8.11 movement on the first sliding rail 3.3,
Second sliding block 3.6, which is used to support, fixes the second connecting shaft 8.10, and the movement of the second interlocking bar 8.12 can be followed
Sliding on two sliding rails 3.5.
Further, first linkage seat 8.7, which is used to support, fixes the first connecting shaft 8.9, and the first connecting shaft 8.9 can
It is rotated in the first linkage seat 8.7,
Second linkage seat 8.8, which is used to support, fixes the second connecting shaft 8.10, and the second connecting shaft 8.10 can be in the second linkage
It is rotated on seat 8.8.
Further, first sliding rail 3.3 has two, is parallel to each other, and is arranged in the two sides of cavity 3.1, and described the
There are two the corresponding settings of one slide 3.4.
Further, second sliding rail 3.5 has two, is parallel to each other, and is arranged in the two sides of cavity 3.1, and described the
There are two the corresponding settings of two slide 3.6.
Further, the oscillating rod 9 connects rotary shaft 10, and the rotary shaft 10 is arranged in cavity 3.1.
The present invention works in this way: the first boom cylinder 5 and the second boom cylinder 6 struggle against for controlling swinging for swing arm 2
Rod oil cylinder 7 is used to control the swing of dipper 3, and when needing to be commutated dipper 3, the retraction of bucket arm cylinder 3 retracts dipper 3,
Gear 3.2 to be fixed at this time to contact with driving gear 2.4 and driven gear 2.6, starting motor 2.5 controls driving gear 2.4 and rotates,
Since fixed gear 3.2 will not be rotated relative to dipper, under the drive of driving gear 2.6 dipper 3 cross swing arm 2 commutate to it is dynamic
The other side of arm 2.When carrying out the commutation of scraper bowl 4, the first rotary oil cylinder 8.1 and the second rotary oil cylinder 8.2 driving bucket cylinder 8 revolve
Turn, at the same bucket cylinder 8 cooperation carry out stretching motion, bucket cylinder 8 move during first linkage support 8.7 be detached from
The connection of first connecting shaft 8.9, the first connecting shaft 8.9 are supported and fixed on the first sliding block 3.4, and bucket cylinder 8 continues up time
Needle rotation, so that the second linkage seat 8.8 and the support of the second universal driving shaft 8.10 rotate, the second universal driving shaft 8.10 is detached from the second sliding block
3.6, this is the example of a commutation.
When the first connecting shaft 8.9 is contacted with first slide 3.4, the first connecting shaft 8.9 can be fixed on first slide
On 3.4, and it can be rotated in first slide 3.4,
When the second connecting shaft 8.10 is contacted with second slide 3.6, the second connecting shaft 8.10 can be fixed on second slide 3.6
On, and can be rotated in second slide 3.6,
When the first connecting shaft 8.9 and the first linkage seat 8.7 contact, the first connecting shaft 8.9 can be fixed on the first linkage seat
On 8.7, and it can be rotated in the first linkage seat 8.7,
When the second connecting shaft 8.10 and the second linkage seat 8.8 contact, the second connecting shaft 8.10 can be fixed on the second linkage
On axis 8.8, and it can be rotated in the second linkage seat 8.8,
The first slide 3.4 and second slide 3.6 are able to pass through the controller control position, and controller can control first slide
3.4 and second slide 3.6 move and/or be fixed on a certain position, controller is not shown, controller can be by having
Line is wirelessly connect with slide, and driving device is arranged in slide, can drive the movement of slide.
The scraper bowl 4 has rubber bucket body 4.5, can when by external force at left and right sides of convert and puts down, it is described outside
Power mostlys come from the active force that material applies when shovel digs material, can make to be added the transformation of bucket body 4.5 under the active force of material
Direction.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by those familiar with the art, all answers
It is included within the scope of the present invention.
Claims (6)
1. a kind of excavator, the excavator has job platform 1, swing arm 2, dipper 3 and scraper bowl 4, it is characterised in that: described dynamic
The left and right sides of arm 2 is provided with the first boom cylinder 5 and the second boom cylinder 6,
The swing arm 2 has swing arm ontology 2.1, and the front end of the swing arm ontology 2.1 is provided with first support arm 2.2 and second support arm
2.3, the first support arm 2.2 is arranged in parallel with second support arm 2.3, and the inside of the second support arm 2.3 is provided with driving gear
2.4, the driving gear 2.4 connects motor 2.5, and the inside of the first support arm 2.2 is provided with driven gear 2.6, and first
Bucket arm cylinder support 2.7 is provided between arm 2.2 and second support arm 2.3, one end of bucket arm cylinder 7 is connected to bucket arm cylinder support
On 2.7,
Cavity 3.1 is provided on the dipper 3, the rear end sides of the dipper 3 are provided with fixed gear 3.2, the fixed tooth
Wheel 3.2 is fixed on dipper 3, bucket cylinder 8 is provided in the cavity 3.1, the front end of the bucket cylinder 8 is connected with swing
Bar 9, the two sides up and down of the bucket cylinder 8 are provided with the first rotary oil cylinder 8.1 and the second rotary oil cylinder 8.2,
Described first rotary oil cylinder, 8.1 one end is connected on the first support 8.3 on dipper 3, and the other end is connected to setting and is shoveling
On the first hinged seat 8.5 to struggle against on the cylinder barrel of oil cylinder 8,
Described second rotary oil cylinder, 8.2 one end is connected on the second support 8.4 on dipper 3, and the other end is connected to setting and is shoveling
On the second hinged seat 8.6 to struggle against on the cylinder barrel of oil cylinder 8,
The bucket cylinder 8 and the axis of 9 junction of oscillating rod are provided with the first linkage seat 8.7 and the second linkage seat in two sides up and down
8.8, the dipper 3 is respectively arranged with the first sliding rail 3.3 and the second sliding rail 3.5 in the two sides up and down at the scraper bowl 4, and described the
It is provided with first slide 3.4 on one sliding rail 3.3, is provided with second slide 3.6 on second sliding rail 3.5,
The scraper bowl 4 has connecting plate 4.1, the connection of the connecting plate 4.1 connection frame 4.2, the two sides setting of the connection frame 4.2
There are the first bucket tooth 4.3 and the second bucket tooth 4.4, rubber bucket body 4.5 is provided on the connection frame 4.2, is set on the connecting plate 4.1
It is equipped with attachment base 4.6, the two sides of the attachment base 4.6 are provided with the first hinged seat 4.7 and the second hinged seat 4.8, and described first
Hinged seat 4.7 connects one end of the first interlocking bar 8.11, and the other end of first interlocking bar 8.11 connects the first connecting shaft
8.9, second hinged seat 4.8 connects one end of the second interlocking bar 8.12, the other end connection of second interlocking bar 8.12
Second connecting shaft 8.10,
The excavator also has a hydraulic system, the hydraulic system include fuel tank 101, filter 102, the first check valve 103,
Variable pump 104, second one-way valve 105, motor 106, overflow valve 107, the first reversal valve 108, the second reversal valve 109, third are changed
To valve 110, the 4th reversal valve 111, the 5th reversal valve 112, the 6th reversal valve 113, the first boom cylinder 5, the second boom cylinder
6, bucket arm cylinder 7, bucket cylinder 8, the first rotary oil cylinder 8.1, the second rotary oil cylinder 8.2, first reversal valve 108 connection the
One boom cylinder 5, the second reversal valve 109 connect the second boom cylinder 6, and third reversal valve 110 connects bucket arm cylinder 7, and the 4th changes
Bucket cylinder 8 is connected to valve 111, the 5th reversal valve 112 connects the first rotary oil cylinder 8.1, the second rotation of the 6th reversal valve 113 connection
Turn oil cylinder 8.2.
2. a kind of excavator as claimed in claim 2, it is characterised in that: the first sliding block 3.4, which is used to support, fixes the first connection
Axis 8.9, and sliding of the movement of the first interlocking bar 8.11 on the first sliding rail 3.3 can be followed,
Second sliding block 3.6, which is used to support, fixes the second connecting shaft 8.10, and the movement of the second interlocking bar 8.12 can be followed
Sliding on two sliding rails 3.5.
3. a kind of excavator as described in claim 1, it is characterised in that:
First linkage seat 8.7, which is used to support, fixes the first connecting shaft 8.9, and the first connecting shaft 8.9 can be in the first linkage seat
It is rotated on 8.7,
Second linkage seat 8.8, which is used to support, fixes the second connecting shaft 8.10, and the second connecting shaft 8.10 can be in the second linkage
It is rotated on seat 8.8.
4. a kind of excavator as described in claim 1, it is characterised in that:
First sliding rail 3.3 has two, is parallel to each other, and the two sides of cavity 3.1 are arranged in, and the first slide 3.4 is opposite
There are two should being arranged.
5. a kind of excavator as described in claim 1, it is characterised in that:
Second sliding rail 3.5 has two, is parallel to each other, and the two sides of cavity 3.1 are arranged in, and the second slide 3.6 is opposite
There are two should being arranged.
6. a kind of excavator as described in claim 1, it is characterised in that:
The oscillating rod 9 connects rotary shaft 10, and the rotary shaft 10 is arranged in cavity 3.1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811417512.2A CN109469129B (en) | 2018-11-26 | 2018-11-26 | Digging machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811417512.2A CN109469129B (en) | 2018-11-26 | 2018-11-26 | Digging machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109469129A true CN109469129A (en) | 2019-03-15 |
| CN109469129B CN109469129B (en) | 2021-05-07 |
Family
ID=65673206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811417512.2A Active CN109469129B (en) | 2018-11-26 | 2018-11-26 | Digging machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109469129B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3313431A (en) * | 1964-08-19 | 1967-04-11 | Bamford Excavators Ltd | Excavators |
| JPH09242104A (en) * | 1996-03-12 | 1997-09-16 | Takeuchi Seisakusho:Kk | Power shovel |
| JPH1136380A (en) * | 1997-07-18 | 1999-02-09 | Kato Works Co Ltd | Power shovel |
| CN101311429A (en) * | 2007-05-26 | 2008-11-26 | J.C.班福德挖掘机有限公司 | Method for operating a working machine |
| CN105626078A (en) * | 2014-10-31 | 2016-06-01 | 徐州徐工铁路装备有限公司 | Operation arm and underground tunnel excavation device |
-
2018
- 2018-11-26 CN CN201811417512.2A patent/CN109469129B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3313431A (en) * | 1964-08-19 | 1967-04-11 | Bamford Excavators Ltd | Excavators |
| JPH09242104A (en) * | 1996-03-12 | 1997-09-16 | Takeuchi Seisakusho:Kk | Power shovel |
| JPH1136380A (en) * | 1997-07-18 | 1999-02-09 | Kato Works Co Ltd | Power shovel |
| CN101311429A (en) * | 2007-05-26 | 2008-11-26 | J.C.班福德挖掘机有限公司 | Method for operating a working machine |
| CN105626078A (en) * | 2014-10-31 | 2016-06-01 | 徐州徐工铁路装备有限公司 | Operation arm and underground tunnel excavation device |
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| Publication number | Publication date |
|---|---|
| CN109469129B (en) | 2021-05-07 |
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