CN109469129B - Digging machine - Google Patents
Digging machine Download PDFInfo
- Publication number
- CN109469129B CN109469129B CN201811417512.2A CN201811417512A CN109469129B CN 109469129 B CN109469129 B CN 109469129B CN 201811417512 A CN201811417512 A CN 201811417512A CN 109469129 B CN109469129 B CN 109469129B
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- Prior art keywords
- bucket
- oil cylinder
- seat
- rod
- cylinder
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Classifications
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- 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
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- 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
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- 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 an excavator, which is provided with a working platform and a movable arm, the bucket comprises a bucket rod and a bucket body, wherein a first movable arm oil cylinder and a second movable arm oil cylinder are arranged on the left side and the right side of a movable arm, a first support arm and a second support arm are arranged at the front end of the movable arm, the first support arm and the second support arm are arranged in parallel, a driving gear is arranged on the inner side of the second support arm, the driving gear is connected with a motor, a driven gear is arranged on the inner side of the first support arm, a cavity is formed in the bucket rod, fixed gears are arranged on the two sides of the rear end of the bucket rod, the fixed gears are fixed on the bucket rod, a bucket oil cylinder is arranged in the cavity, the front end of the bucket oil cylinder is connected with a swing rod, a first rotating oil cylinder and a second rotating oil cylinder are arranged on the upper side and the lower side of the bucket oil. The invention can effectively and conveniently change the left direction and the right direction of the bucket, does not need an excavator to carry out rotary motion, can reduce the rotation under the condition of not needing the excavation and saves energy.
Description
Technical Field
The invention relates to the field of excavators, in particular to an excavator.
Background
The excavator is provided with a crawler, an upper bearing platform and a cab, wherein a movable arm is arranged on the upper bearing platform, the front end of the movable arm is connected with a bucket rod, and the front end of the bucket rod is connected with a bucket. The excavator needs more hydraulic oil to be consumed when rotating, and more waste hydraulic oil is generated, and as a plurality of working parts are arranged on the bearing platform of the excavator, the excavator has strong inertia force when rotating, so that the rotation is the operation with the most oil consumption and waste. There are many methods for rotary energy storage.
Disclosure of Invention
The present invention has been made to solve the above problems, and provides another solution, an excavator, which is capable of performing bidirectional alternate work.
The invention is realized by adopting the following technical scheme,
an excavator having a work platform 1, a boom 2, an arm 3, and a bucket 4, the boom 2 being provided at left and right sides thereof with a first boom cylinder 5 and a second boom cylinder 6,
the movable arm 2 is provided with a movable arm body 2.1, the front end of the movable arm body 2.1 is provided with a first support arm 2.2 and a second support arm 2.3, the first support arm 2.2 and the second support arm 2.3 are arranged in parallel, the inner side of the second support arm 2.3 is provided with a driving gear 2.4, the driving gear 2.4 is connected with a motor 2.5, the inner side of the first support arm 2.2 is provided with a driven gear 2.6, a bucket rod oil cylinder support 2.7 is arranged between the first support arm 2.2 and the second support arm 2.3, one end of the bucket rod oil cylinder 7 is connected on the bucket rod oil cylinder support 2.7,
a cavity 3.1 is arranged on the bucket rod 3, fixed gears 3.2 are arranged on two sides of the rear end of the bucket rod 3, the fixed gears 3.2 are fixed on the bucket rod 3 and cannot rotate relative to the bucket rod, a bucket oil cylinder 8 is arranged in the cavity 3.1, the front end of the bucket oil cylinder 8 is connected with a swing rod 9, a first rotating oil cylinder 8.1 and a second rotating oil cylinder 8.2 are arranged on the upper side and the lower side of the bucket oil cylinder 8,
one end of the first rotary oil cylinder 8.1 is connected with the first support 8.3 on the bucket rod 3, the other end is connected with the first hinged seat 8.5 arranged on the cylinder barrel of the bucket oil cylinder 8,
one end of the second rotary oil cylinder 8.2 is connected with a second support 8.4 on the bucket rod 3, the other end is connected with a second hinged seat 8.6 arranged on a cylinder barrel of the bucket oil cylinder 8,
a first linkage seat 8.7 and a second linkage seat 8.8 are arranged on the upper side and the lower side of a shaft at the joint of the bucket oil cylinder 8 and the swing rod 9, a first slide rail 3.3 and a second slide rail 3.5 are respectively arranged on the upper side and the lower side of the bucket rod 3 near the bucket 4, a first slide seat 3.4 is arranged on the first slide rail 3.3, a second slide seat 3.6 is arranged on the second slide rail 3.5,
the scraper bowl 4 has connecting plate 4.1, connecting plate 4.1 connects connecting frame 4.2, the both sides of connecting frame 4.2 are provided with first fill tooth 4.3 and second fill tooth 4.4, be provided with rubber bucket body 4.5 on the connecting frame 4.2, be provided with connecting seat 4.6 on the connecting plate 4.1, the both sides of connecting seat 4.6 are provided with third articulated seat 4.7 and fourth articulated seat 4.8, the one end of first gangbar 8.11 is connected to third articulated seat 4.7, first connecting axle 8.9 is connected to the other end of first gangbar 8.11, the one end of second gangbar 8.12 is connected to fourth articulated seat 4.8, second connecting axle 8.10 is connected to the other end of second gangbar 8.12.
Further, the first sliding seat 3.4 is used for supporting and fixing the first connecting shaft 8.9 and can slide on the first sliding rail 3.3 along with the movement of the first linkage rod 8.11,
the second slide 3.6 is used for supporting and fixing the second connecting shaft 8.10 and can slide on the second slide rail 3.5 along with the movement of the second linkage rod 8.12.
Furthermore, the first linkage seat 8.7 is used for supporting and fixing the first connecting shaft 8.9, the first connecting shaft 8.9 can rotate on the first linkage seat 8.7,
the second linkage seat 8.8 is used for supporting and fixing a second connecting shaft 8.10, and the second connecting shaft 8.10 can rotate on the second linkage seat 8.8.
Furthermore, the first slide rail 3.3 has two, parallel to each other, and is disposed on two sides of the cavity 3.1, and the first slide seat 3.4 is correspondingly disposed with two.
Furthermore, the second slide rails 3.5 are parallel to each other and disposed on two sides of the cavity 3.1, and the second slide seats 3.6 are correspondingly disposed in two.
Further, the oscillating lever 9 is connected to a rotation shaft 10, the rotation shaft 10 being arranged in the cavity 3.1.
The invention can effectively and conveniently change the left direction and the right direction of the bucket, does not need an excavator to carry out rotary motion, can reduce the rotation under the condition of not needing the excavation and saves energy.
Drawings
FIG. 1 is a schematic view of the excavator of the present invention;
FIG. 2 is a schematic illustration of the boom construction of the present invention;
FIG. 3 is a schematic diagram of a top view of a boom according to the present invention;
FIG. 4 is a schematic view of the bucket arm of the present invention;
FIG. 5 is a schematic top view of the bucket arm of the present invention;
FIG. 6 is a schematic view of the structure of the joint of the swing lever of the present invention;
FIG. 7 is a schematic top view of the swing lever attachment of the present invention;
FIG. 8 is a schematic view of the bucket arm of the present invention;
FIG. 9 is a schematic view of a bucket construction according to the present disclosure;
FIG. 10 is a hydraulic system diagram of the present invention;
in the figure, an operation platform 1, a movable arm 2, a bucket rod 3, a bucket 4, a first movable arm oil cylinder 5, a second movable arm oil cylinder 6, a bucket rod oil cylinder 7, a bucket oil cylinder 8, a movable arm body 2.1, a first support arm 2.2, a second support arm 2.3, a driving gear 2.4, a motor 2.5, a driven gear 2.6, a bucket rod oil cylinder support 2.7, a cavity 3.1, a fixed gear 3.2, a first rotating oil cylinder 8.1, a second rotating oil cylinder 8.2, a first support 8.3, a second support 8.4, a first hinged support 8.5, a second hinged support 8.6, a first linked support 8.7, a second linked support 8.8, a first slide rail 3.3, a first hinged support 3.4, a second slide rail 3.5, a second slide support 3.6, a first connecting shaft 8.9, a second linked support 8.10, a first connecting shaft 8.11, a second linked rod 8.12, a connecting plate 4.1, a bucket frame, a fourth connecting seat 4.6, a bucket tooth frame, a third hinged support 8.6, a fourth connecting shaft 8.9, a connecting rod 8.10, a connecting plate, a bucket teeth, a bucket frame, a fourth connecting seat, a bucket frame, a bucket, The hydraulic control system comprises a rotary shaft 10, an oil tank 101, a filter 102, a first check valve 103, a variable displacement pump 104, a second check valve 105, a motor 106, an overflow valve 107, a first direction changing valve 108, a second direction changing valve 109, a third direction changing valve 110, a fourth direction changing valve 111, a fifth direction changing valve 112 and a sixth direction changing valve 113.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 9, an excavator having a work platform 1, a boom 2, an arm 3, and a bucket 4, the boom 2 being provided at left and right sides thereof with a first boom cylinder 5 and a second boom cylinder 6,
the movable arm 2 is provided with a movable arm body 2.1, the front end of the movable arm body 2.1 is provided with a first support arm 2.2 and a second support arm 2.3, the first support arm 2.2 and the second support arm 2.3 are arranged in parallel, the inner side of the second support arm 2.3 is provided with a driving gear 2.4, the driving gear 2.4 is connected with a motor 2.5, the inner side of the first support arm 2.2 is provided with a driven gear 2.6, a bucket rod oil cylinder support 2.7 is arranged between the first support arm 2.2 and the second support arm 2.3, one end of the bucket rod oil cylinder 7 is connected on the bucket rod oil cylinder support 2.7,
a cavity 3.1 is arranged on the bucket rod 3, fixed gears 3.2 are arranged on two sides of the rear end of the bucket rod 3, the fixed gears 3.2 are fixed on the bucket rod 3 and cannot rotate relative to the bucket rod, a bucket oil cylinder 8 is arranged in the cavity 3.1, the front end of the bucket oil cylinder 8 is connected with a swing rod 9, a first rotating oil cylinder 8.1 and a second rotating oil cylinder 8.2 are arranged on the upper side and the lower side of the bucket oil cylinder 8,
one end of the first rotary oil cylinder 8.1 is connected with the first support 8.3 on the bucket rod 3, the other end is connected with the first hinged seat 8.5 arranged on the cylinder barrel of the bucket oil cylinder 8,
one end of the second rotary oil cylinder 8.2 is connected with a second support 8.4 on the bucket rod 3, the other end is connected with a second hinged seat 8.6 arranged on a cylinder barrel of the bucket oil cylinder 8,
a first linkage seat 8.7 and a second linkage seat 8.8 are arranged on the upper side and the lower side of a shaft at the joint of the bucket oil cylinder 8 and the swing rod 9, a first slide rail 3.3 and a second slide rail 3.5 are respectively arranged on the upper side and the lower side of the bucket rod 3 near the bucket 4, a first slide seat 3.4 is arranged on the first slide rail 3.3, a second slide seat 3.6 is arranged on the second slide rail 3.5,
the scraper bowl 4 has connecting plate 4.1, connecting plate 4.1 connects connecting frame 4.2, the both sides of connecting frame 4.2 are provided with first fill tooth 4.3 and second fill tooth 4.4, be provided with rubber bucket body 4.5 on the connecting frame 4.2, be provided with connecting seat 4.6 on the connecting plate 4.1, the both sides of connecting seat 4.6 are provided with third articulated seat 4.7 and fourth articulated seat 4.8, the one end of first gangbar 8.11 is connected to third articulated seat 4.7, first connecting axle 8.9 is connected to the other end of first gangbar 8.11, the one end of second gangbar 8.12 is connected to fourth articulated seat 4.8, second connecting axle 8.10 is connected to the other end of second gangbar 8.12.
Further, the first sliding seat 3.4 is used for supporting and fixing the first connecting shaft 8.9 and can slide on the first sliding rail 3.3 along with the movement of the first linkage rod 8.11,
the second slide 3.6 is used for supporting and fixing the second connecting shaft 8.10 and can slide on the second slide rail 3.5 along with the movement of the second linkage rod 8.12.
Furthermore, the first linkage seat 8.7 is used for supporting and fixing the first connecting shaft 8.9, the first connecting shaft 8.9 can rotate on the first linkage seat 8.7,
the second linkage seat 8.8 is used for supporting and fixing a second connecting shaft 8.10, and the second connecting shaft 8.10 can rotate on the second linkage seat 8.8.
Furthermore, the first slide rail 3.3 has two, parallel to each other, and is disposed on two sides of the cavity 3.1, and the first slide seat 3.4 is correspondingly disposed with two.
Furthermore, the second slide rails 3.5 are parallel to each other and disposed on two sides of the cavity 3.1, and the second slide seats 3.6 are correspondingly disposed in two.
Further, the oscillating lever 9 is connected to a rotation shaft 10, the rotation shaft 10 being arranged in the cavity 3.1.
The invention works as follows: the first boom cylinder 5 and the second boom cylinder 6 are used for controlling the swing of the boom 2 left and right, the arm cylinder 7 is used for controlling the swing of the arm 3, when the arm 3 needs to be reversed, the arm cylinder 3 retracts to pull the arm 3 back, the fixed gear 3.2 is in contact with the driving gear 2.4 and the driven gear 2.6 at the moment, the starting motor 2.5 controls the driving gear 2.4 to rotate, and the fixed gear 3.2 cannot rotate relative to the arm, so that the arm 3 is reversed to the other side of the boom 2 beyond the boom 2 under the driving of the driving gear 2.6. When the bucket 4 is reversed, the first rotating oil cylinder 8.1 and the second rotating oil cylinder 8.2 drive the bucket oil cylinder 8 to rotate, meanwhile, the bucket oil cylinder 8 is matched to perform telescopic motion, the first linkage support 8.7 is separated from the connection with the first connecting shaft 8.9 in the motion process of the bucket oil cylinder 8, the first connecting shaft 8.9 is supported and fixed on the first sliding seat 3.4, the bucket oil cylinder 8 continues to rotate clockwise, so that the second linkage support 8.8 and the second linkage shaft 8.10 are supported and rotated, and the second linkage shaft 8.10 is separated from the second sliding seat 3.6, which is an example of reversing.
When the first connecting axle 8.9 is in contact with the first carriage 3.4, the first connecting axle 8.9 can be fixed on the first carriage 3.4 and can rotate on the first carriage 3.4,
when the second connecting shaft 8.10 is in contact with the second slide 3.6, the second connecting shaft 8.10 can be fixed on the second slide 3.6 and can rotate on the second slide 3.6,
when the first connecting shaft 8.9 is in contact with the first linkage seat 8.7, the first connecting shaft 8.9 can be fixed on the first linkage seat 8.7 and can rotate on the first linkage seat 8.7,
when the second connecting shaft 8.10 is in contact with the second coupling seat 8.8, the second connecting shaft 8.10 can be fixed on the second coupling shaft 8.8 and can rotate on the second coupling seat 8.8,
the first sliding seat 3.4 and the second sliding seat 3.6 can control the positions through a controller, the controller can control the first sliding seat 3.4 and the second sliding seat 3.6 to move and/or be fixed at a certain position, the controller is not shown in the figure, the controller can be connected with the sliding seats in a wired or wireless mode, and a driving device is arranged in the sliding seats and can drive the sliding seats to move.
The scraper bowl 4 has rubber bucket body 4.5, can put down in the left and right sides transform when receiving the exogenic action, the effort that the material was applyed when external force mainly comes from the shovel and digs the material can make the looks up bucket body 4.5 transform direction under the effort of material.
The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention.
Claims (6)
1. An excavator having a work platform (1), a boom (2), an arm (3), and a bucket (4), characterized in that: a first movable arm oil cylinder (5) and a second movable arm oil cylinder (6) are arranged at the left side and the right side of the movable arm (2),
the movable arm (2) is provided with a movable arm body (2.1), the front end of the movable arm body (2.1) is provided with a first support arm (2.2) and a second support arm (2.3), the first support arm (2.2) and the second support arm (2.3) are arranged in parallel, the inner side of the second support arm (2.3) is provided with a driving gear (2.4), the driving gear (2.4) is connected with a motor (2.5), the inner side of the first support arm (2.2) is provided with a driven gear (2.6), a bucket rod oil cylinder support (2.7) is arranged between the first support arm (2.2) and the second support arm (2.3), one end of the bucket rod oil cylinder (7) is connected to the bucket rod oil cylinder support (2.7),
a cavity (3.1) is formed in the bucket rod (3), fixed gears (3.2) are arranged on two sides of the rear end of the bucket rod (3), the fixed gears (3.2) are fixed on the bucket rod (3), a bucket oil cylinder (8) is arranged in the cavity (3.1), the front end of the bucket oil cylinder (8) is connected with a swing rod (9), a first rotating oil cylinder (8.1) and a second rotating oil cylinder (8.2) are arranged on the upper side and the lower side of the bucket oil cylinder (8),
one end of the first rotary oil cylinder (8.1) is connected with the first support (8.3) on the bucket rod (3), the other end is connected with the first hinged seat (8.5) arranged on the cylinder barrel of the bucket oil cylinder (8),
one end of the second rotary oil cylinder (8.2) is connected with a second support (8.4) on the bucket rod (3), the other end is connected with a second hinged seat (8.6) arranged on the cylinder barrel of the bucket oil cylinder (8),
a first linkage seat (8.7) and a second linkage seat (8.8) are arranged on the upper side and the lower side of a shaft at the joint of the bucket oil cylinder (8) and the swing rod (9), a first slide rail (3.3) and a second slide rail (3.5) are respectively arranged on the upper side and the lower side of the bucket rod (3) close to the bucket (4), a first slide seat (3.4) is arranged on the first slide rail (3.3), a second slide seat (3.6) is arranged on the second slide rail (3.5),
the scraper bucket (4) is provided with a connecting plate (4.1), the connecting plate (4.1) is connected with a connecting frame (4.2), two sides of the connecting frame (4.2) are provided with a first bucket tooth (4.3) and a second bucket tooth (4.4), a rubber bucket body (4.5) is arranged on the connecting frame (4.2), a connecting seat (4.6) is arranged on the connecting plate (4.1), two sides of the connecting seat (4.6) are provided with a third hinging seat (4.7) and a fourth hinging seat (4.8), the third hinging seat (4.7) is connected with one end of a first linkage rod (8.11), the other end of the first linkage rod (8.11) is connected with a first connecting shaft (8.9), the fourth hinging seat (4.8) is connected with one end of a second linkage rod (8.12), and the other end of the second linkage rod (8.12) is connected with a second connecting shaft (8.10),
the excavator is also provided with a hydraulic system, the hydraulic system comprises an oil tank (101), a filter (102), a first one-way valve (103), a variable pump (104), a second one-way valve (105), a motor (106), an overflow valve (107), a first reversing valve (108), a second reversing valve (109), a third reversing valve (110), a fourth reversing valve (111), a fifth reversing valve (112), a sixth reversing valve (113), a first boom cylinder (5), a second boom cylinder (6), an arm cylinder (7), a bucket cylinder (8), a first rotating cylinder (8.1) and a second rotating cylinder (8.2), the first reversing valve (108) is connected with the first boom cylinder (5), the second reversing valve (109) is connected with the second boom cylinder (6), the third reversing valve (110) is connected with the arm cylinder (7), and the fourth reversing valve (111) is connected with the bucket cylinder (8), the fifth reversing valve (112) is connected with the first rotary oil cylinder (8.1), and the sixth reversing valve (113) is connected with the second rotary oil cylinder (8.2).
2. An excavator according to claim 1 wherein: the first sliding seat (3.4) is used for supporting and fixing the first connecting shaft (8.9) and can slide on the first sliding rail (3.3) along with the movement of the first linkage rod (8.11),
the second sliding seat (3.6) is used for supporting and fixing the second connecting shaft (8.10) and can slide on the second sliding rail (3.5) along with the movement of the second linkage rod (8.12).
3. An excavator according to claim 1 wherein:
the first linkage seat (8.7) is used for supporting and fixing a first connecting shaft (8.9), the first connecting shaft (8.9) can rotate on the first linkage seat (8.7),
the second linkage seat (8.8) is used for supporting and fixing a second connecting shaft (8.10), and the second connecting shaft (8.10) can rotate on the second linkage seat (8.8).
4. An excavator according to claim 1 wherein:
the first sliding rails (3.3) are parallel to each other and arranged on two sides of the cavity (3.1), and the first sliding seats (3.4) are correspondingly provided with two sliding seats.
5. An excavator according to claim 1 wherein:
the two second sliding rails (3.5) are parallel to each other and arranged on two sides of the cavity (3.1), and the two second sliding seats (3.6) are correspondingly arranged.
6. An excavator according to claim 1 wherein:
the oscillating lever (9) is connected with a rotating shaft (10), and the rotating shaft (10) is arranged in the 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 CN109469129A (en) | 2019-03-15 |
| CN109469129B true CN109469129B (en) | 2021-05-07 |
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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 |
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| 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 |
|---|---|
| CN109469129A (en) | 2019-03-15 |
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Effective date of registration: 20221229 Address after: 272000 104, Digital Economy Innovation Center, No. 69, Haichuan Road, Liuhang Street, High tech Zone, Jining City, Shandong Province Patentee after: Jining Linding Information Technology Co.,Ltd. Address before: 243000 No.9, ZhuRan Road, economic and Technological Development Zone, Ma'anshan City, Anhui Province Patentee before: MAANSHAN JINSHUNLAI INDUSTRIAL DESIGN Co.,Ltd. |