CN110453740A - A kind of bulldozer perching knife pocket soil transport device - Google Patents
A kind of bulldozer perching knife pocket soil transport device Download PDFInfo
- Publication number
- CN110453740A CN110453740A CN201910708000.XA CN201910708000A CN110453740A CN 110453740 A CN110453740 A CN 110453740A CN 201910708000 A CN201910708000 A CN 201910708000A CN 110453740 A CN110453740 A CN 110453740A
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- China
- Prior art keywords
- plate
- fixedly installed
- perching knife
- featured
- transport device
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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
- E02F3/76—Graders, bulldozers, or the like with scraper plates or ploughshare-like elements; Levelling scarifying devices
-
- 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
- E02F3/76—Graders, bulldozers, or the like with scraper plates or ploughshare-like elements; Levelling scarifying devices
- E02F3/80—Component parts
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Shovels (AREA)
- Soil Working Implements (AREA)
Abstract
The present invention relates to bull-dozer technical fields, and disclose a kind of bulldozer perching knife pocket soil transport device, including promoting mainly plate, front and the back side of the featured plate are fixedly installed with baffle, the top of the featured plate and be located at baffle opposite side be fixedly installed with accessory plate, the left side bottom end of the featured plate is fixedly installed with perching knife group, protective plate is fixedly installed at the top of the accessory plate, the opposite side of the baffle is fixedly installed with the reinforcing prop being located on the right side of featured plate, the right side of two baffles is fixedly installed with link block, the right end of the link block is movably installed with body frame.The bulldozer perching knife pocket soil transport device, mound biggish for heaped measure can be pushed quickly, it lightens the load without worker's external-open, the time required to reducing engineering construction, save manpower and material resources, protective with higher and safety simultaneously, readily replaceable simultaneously for main component easy to damage, maintenance cost is lower.
Description
Technical field
The present invention relates to bull-dozer technical field, specially a kind of bulldozer perching knife pocket soil transport device.
Background technique
Bull-dozer is a kind of earthmoving equipment for being able to carry out excavation, transporting and dump ground, is had extensively in opencut
Purposes, for example, smooth truck spoilbank heaps the ore-rock of dispersion, finishing operations square position and Architecture Field for building refuse dump
Ground etc., it is applied not only to back work, it can also be used to mainly exploit work, such as: the removing and mining of placer, scraper and
The traction and boosting for ploughing rock machine cooperate other earthmoving machinerys to reduce stripping bench height etc. in course stacking method.
When in use, mound biggish for heaped measure etc. is difficult to push away traditional bulldozer perching knife pocket soil transport device
It is dynamic, it needs worker to carry out just carrying out soil-shifting operation after excavating processing, substantially prolongs engineering construction time and progress, waste people
Power and material resources, so it is set forth above to solve the problems, such as to propose a kind of bulldozer perching knife pocket soil transport device.
Summary of the invention
(1) the technical issues of solving
In view of the deficiencies of the prior art, the present invention provides a kind of bulldozer perching knife pocket soil transport device, have can push away compared with
The advantages that large-scale mound, solves traditional bulldozer perching knife pocket soil transport device when in use, mound biggish for heaped measure
Etc. being difficult to be pushed, needs worker to carry out just carrying out soil-shifting operation after excavating processing, substantially prolong the engineering construction time
With progress, the problem of waste of manpower and material resources.
(2) technical solution
To realize the above-mentioned purpose for pushing away relatively large mound, the invention provides the following technical scheme: a kind of bulldozer perching knife
Pocket soil transport device, including featured plate, front and the back side of the featured plate are fixedly installed with baffle, the top of the featured plate
Portion and be located at baffle opposite side be fixedly installed with accessory plate, the left side bottom end of the featured plate is fixedly installed with perching knife group,
Protective plate is fixedly installed at the top of the accessory plate, the opposite side of the baffle, which is fixedly installed with, to be located on the right side of featured plate
Reinforcing prop, the right side of two baffles are fixedly installed with link block, and the right end of the link block is movably installed with body frame, described
The left end opposite side of body frame is fixedly connected by the connecting rod through two link blocks, and the right side of the featured plate is fixedly mounted
The attachment base for having quantity for two and being located above reinforcing prop, the right side of the attachment base are movably installed with first hydraulic cylinder,
The external activity of the first hydraulic cylinder is equipped with the first linking arm, and the opposite side of first linking arm is fixedly installed with
First fixed plate offers leakage mouth on the left of the featured plate, is fixedly installed with to be located on the right side of the featured plate and leaks out mouth
The hinged block of top is fitted with hush panel on the right side of the leakage mouth, be fixedly installed on the right side of the hush panel be located at it is featured
On the right side of plate and the connecting plate hinged with hinged block, the position-limited rack that quantity is two, institute are fixedly installed on the right side of the connecting plate
The opposite side for stating position-limited rack offers movable mouth, and the opposite side of the baffle is fixedly installed with the right side for being located at featured plate
Side and the extension board for being located at two opposite sides of position-limited rack, the opposite side of the extension board are fixedly connected by limit plate, institute
The front for stating position-limited rack is fitted with the connection frame for running through two position-limited racks by movable mouth and extending to right side, the connection frame
Right side is fixedly installed with the movable axis that quantity is two and runs through limit plate, and the top of the movable axis is movably installed with the
Two hydraulic cylinders, are movably installed with the second linking arm on the right side of the top of the second hydraulic cylinder, second linking arm it is opposite
Side is fixedly installed with the second fixed plate.
Preferably, the arc-shaped setting of featured plate, the accessory plate are inclined to set with protective plate.
Preferably, the protective plate is equidistantly uniformly distributed in longitudinal, and the protective plate is in 90 degree of bendings.
Preferably, the connecting rod passes through with two link blocks connect bearing flexible connection, and the body frame is in symmetrical
Setting.
Preferably, the attachment base passes through that connecting shaft is vertically hinged with first hydraulic cylinder, a left side for first linking arm
Hold the setting that is in U-shape.
Preferably, the perching knife group includes the grafter knife that quantity is four and the arc perching knife that quantity is two, two institutes
State front and the back side that arc perching knife is fixedly installed in four grafter knives respectively.
Preferably, the connection frame is in U-shape setting, and the hush panel is adapted with mouth is leaked out.
Preferably, the hinged block is equidistantly uniformly distributed in longitudinal, the right side in the left side of the connecting plate and featured plate
It fits.
Preferably, offered at the top of the limit plate quantity be two and opening compatible with movable axis, it is described
The front of first fixed plate and the second fixed plate offers fixation hole.
(3) beneficial effect
Compared with prior art, the present invention provides a kind of bulldozer perching knife pocket soil transport devices, have following beneficial to effect
Fruit:
1, bulldozer perching knife pocket soil transport device, by two the first fixed plates and the second fixed plate by the first linking arm
It is mounted on bull-dozer with the second linking arm, the two sides that two body frames are movably arranged on bull-dozer is passed through first when in use
The shovel that linking arm, first hydraulic cylinder and attachment base control featured plate moves angle and blanking, when needing shovel to move larger mound, second
Hydraulic cylinder cooperation first hydraulic cylinder is shunk, and drives movable axis to be moved in the inside of limit plate, to drive connection frame
Position limiting clamp is pulled, so that connecting plate drives hush panel to be rotated away from leakage mouth by hinged block, pushing away for larger mound can be carried out
Industry is acted, when pushing, mound a part passes through from leakage mouth and falls ground, and a part is moved by the promotion of featured plate, subtracts
It bulldozes less load, hush panel can be closed after the completion of promotion, push again and complete dozing, so that larger for heaped measure
Mound can quickly be pushed, lighten the load without worker's external-open, the time required to reducing engineering construction, save manpower and object
Power.
2, the bulldozer perching knife pocket soil transport device, protective plate can make bull-dozer in operation, prevent contained in mound
The first hydraulic stem of lower damage is pounded from top compared with ratchel, improves operational security, while perching knife group nothing after dozing damage
Monolith is needed to remove replacement, it is only necessary to the shovelling blade replacement of damage can be carried out to reduce cost needed for perching knife is replaced using work, it is auxiliary
It helping plate that entrained mound can be made to be not easy to overflow from the top of featured plate, improves the efficiency of operation, present apparatus stable structure is reasonable,
Protective with higher and safety, readily replaceable simultaneously for main component easy to damage, maintenance cost is lower.
Detailed description of the invention
Fig. 1 is a kind of bulldozer perching knife pocket soil transport device structural schematic diagram proposed by the present invention；
Fig. 2 is structure enlargement diagram at a kind of bulldozer perching knife pocket soil transport device A proposed by the present invention；
Fig. 3 is that a kind of bulldozer perching knife pocket soil transport device proposed by the present invention promotes mainly plate left view.
In figure: 1 featured plate, 2 baffles, 3 accessory plates, 4 perching knife groups, 5 protective plates, 6 reinforcing props, 7 link blocks, 8 body frames, 9 connect
Extension bar, 10 attachment bases, 11 first hydraulic cylinders, 12 first linking arms, 13 first fixed plates, 14 leak out mouth, 15 hinged blocks, 16 sealings
It is plate, 17 connecting plates, 18 position-limited racks, 19 movable mouths, 20 extension boards, 21 limit plates, 22 connection frames, 23 movable axis, 24 second hydraulic
Cylinder, 25 second linking arms, 26 second fixed plates.
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.
Fig. 1-3, a kind of bulldozer perching knife pocket soil transport device, including featured plate 1 are please referred to, front and the back of plate 1 are promoted mainly
Face is fixedly installed with baffle 2, promotes mainly the top of plate 1 and is fixedly installed with accessory plate 3 positioned at the opposite side of baffle 2, promotes mainly
The left side bottom end of plate 1 is fixedly installed with perching knife group 4, the arc that perching knife group 4 includes the grafter knife that quantity is four and quantity is two
Shape perching knife, two arc perching knives are fixedly installed in the front and the back side of four grafter knives respectively, and the top of accessory plate 3 is fixedly mounted
There is a protective plate 5, protective plate 5 is equidistantly uniformly distributed in longitudinal, and protective plate 5 is in 90 degree bendings, promotes mainly that plate 1 is arc-shaped to be set
It sets, accessory plate 3 is inclined to set with protective plate 5, and the opposite side of baffle 2, which is fixedly installed with, is located at adding for featured 1 right side of plate
Strong column 6, the right side of two baffles 2 are fixedly installed with link block 7, and the right end of link block 7 is movably installed with body frame 8, body frame 8
Left end opposite side by being fixedly connected through the connecting rods 9 of two link blocks 7, connecting rod 9 passes through with two link blocks 7
Connection bearing is flexibly connected, and body frame 8 is symmetrical set, and the right side of featured plate 1, which is fixedly installed with quantity as two and is located at, to be added
The attachment base 10 of strong 6 top of column, the right side of attachment base 10 is movably installed with first hydraulic cylinder 11, the outside of first hydraulic cylinder 11
It is movably installed with the first linking arm 12, attachment base 10 and vertically hinged, the first linking arm by connecting shaft of first hydraulic cylinder 11
12 left end is in U-shape setting, and the opposite side of the first linking arm 12 is fixedly installed with the first fixed plate 13, promotes mainly a left side for plate 1
Side, which offers, leaks out mouth 14, and the right side of featured plate 1 is fixedly installed with the hinged block 15 for being located at and leaking out 14 top of mouth, leaks out mouth 14
Right side is fitted with hush panel 16, and the right side of hush panel 16, which is fixedly installed with, is located at featured 1 right side of plate and hinged with hinged block 15
Connecting plate 17, hinged block 15 are equidistantly uniformly distributed in longitudinal, and the left side of connecting plate 17 and the right side of featured plate 1 fit, even
The right side of fishplate bar 17 is fixedly installed with the position-limited rack 18 that quantity is two, and the opposite side of position-limited rack 18 offers movable mouth
19, the opposite side of baffle 2 is fixedly installed with the right side for being located at featured plate 1 and is located at prolonging for two opposite sides of position-limited rack 18
Plate 20 is stretched, the opposite side of extension board 20 is fixedly connected by limit plate 21, and the front of position-limited rack 18 is fitted with through movable mouth
19 through two position-limited racks 18 and extend to the connection frame 22 on right side, and connection frame 22 is in U-shape setting, hush panel 16 and leakage mouth 14
It is adapted, the right side of connection frame 22 is fixedly installed with the movable axis 23 that quantity is two and runs through limit plate 21, movable axis 23
Top be movably installed with second hydraulic cylinder 24, be movably installed with the second linking arm on the right side of the top of second hydraulic cylinder 24
25, the opposite side of the second linking arm 25 is fixedly installed with the second fixed plate 26, and the top of limit plate 21 offers quantity and is
The front of two and opening compatible with movable axis 23, the first fixed plate 13 and the second fixed plate 26 offers fixation
First linking arm 12 and the second linking arm 25 are mounted on bull-dozer by two the first fixed plates 13 and the second fixed plate 26 by hole
On, two body frames 8 are movably arranged on to the two sides of bull-dozer, when in use, by the first linking arm 12, first hydraulic cylinder 11 with
The shovel that attachment base 10 controls featured plate 1 moves angle and blanking, when needing shovel to move larger mound, the cooperation of second hydraulic cylinder 24 first
Hydraulic cylinder 11 is shunk, and movable axis 23 is driven to be moved in the inside of limit plate 21, so that connection frame 22 be driven to pull limit
Position folder 18 can carry out larger mound so that connecting plate 17, which drives hush panel 16 to be rotated away from by hinged block 15, leaks out mouth 14
Promotion operation, when pushing, mound a part falls ground from leaking out mouth 14 and pass through, and a part pushes progress by featured plate 1
It is mobile, soil-shifting load is reduced, hush panel 16 can be closed after the completion of promotion, push again and completes dozing, so that right
It can quickly be pushed in the biggish mound of heaped measure, be lightened the load without worker's external-open, the time required to reducing engineering construction, be saved
Manpower and material resources, protective plate 5 can make bull-dozer in operation, prevent from pounding lower damage the from top compared with ratchel contained in mound
One hydraulic stem 11 improves operational security, while perching knife group 4 removes replacement without monolith after dozing damage, it is only necessary to will
The shovelling blade replacement of damage can carry out reducing cost needed for perching knife is replaced using work, and accessory plate 3 can make entrained mound
Be not easy from the top of featured plate 1 overflow, improve the efficiency of operation, present apparatus stable structure is reasonable, protective with higher with
Safety, readily replaceable simultaneously for main component easy to damage, maintenance cost is lower.
In conclusion the bulldozer perching knife pocket soil transport device, passes through two the first fixed plates 13 and the second fixed plate 26
First linking arm 12 and the second linking arm 25 are mounted on bull-dozer, two body frames 8 are movably arranged on to the two sides of bull-dozer,
When in use, angle and blanking are moved by the shovel that the first linking arm 12, first hydraulic cylinder 11 and attachment base 10 control featured plate 1,
When needing shovel to move larger mound, second hydraulic cylinder 24 cooperates first hydraulic cylinder 11 to be shunk, and movable axis 23 is driven to limit
The inside of plate 21 is moved, to drive connection frame 22 to pull position limiting clamp 18, so that connecting plate 17 drives hush panel 16 to pass through
Hinged block 15, which is rotated away from, leaks out mouth 14, can carry out the promotion operation of larger mound, when pushing, mound a part is from leakage
Mouth 14, which passes through, falls ground, and a part is moved by the promotion of featured plate 1, is reduced soil-shifting load, can be closed after the completion of promotion
Hush panel 16 push again and completes dozing, so that mound biggish for heaped measure can be pushed quickly, is not necessarily to work
People's external-open lightens the load, and the time required to reducing engineering construction, saving manpower and material resources, protective plate 5 can make bull-dozer in operation,
It prevents from pounding the first hydraulic stem 11 of lower damage from top compared with ratchel contained in mound, improves operational security, while perching knife group 4
Replacement is removed without monolith after dozing damage, it is only necessary to can carry out reducing using work by the shovelling blade replacement of damage
Cost needed for perching knife is replaced, accessory plate 3 can make entrained mound be not easy to overflow from the top of featured plate 1, improve the effect of operation
Rate, present apparatus stable structure is reasonable, protective with higher and safety, is easy more simultaneously for main component easy to damage
It changes, maintenance cost is lower, solves traditional bulldozer perching knife pocket soil transport device when in use, mound biggish for heaped measure
Etc. being difficult to be pushed, needs worker to carry out just carrying out soil-shifting operation after excavating processing, substantially prolong the engineering construction time
With progress, the problem of waste of manpower and material resources.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (9)
1. a kind of bulldozer perching knife pocket soil transport device, including it is featured plate (1), it is characterised in that: the front of the featured plate (1)
It is fixedly installed with the back side baffle (2), the top of the featured plate (1) and the opposite side fixed installation for being located at baffle (2)
Have accessory plate (3), the left side bottom end of the featured plate (1) is fixedly installed with perching knife group (4), and the top of the accessory plate (3) is solid
Dingan County is equipped with protective plate (5), and the opposite side of the baffle (2) is fixedly installed with the reinforcing prop being located on the right side of featured plate (1)
(6), the right side of two baffles (2) is fixedly installed with link block (7), and the right end of the link block (7) is movably installed with master
The left end opposite side of frame (8), the body frame (8) is fixedly connected by the connecting rod (9) through two link blocks (7), described
The attachment base (10) that quantity is two and is located above reinforcing prop (6), the attachment base are fixedly installed on the right side of featured plate (1)
(10) right side is movably installed with first hydraulic cylinder (11), and the external activity of the first hydraulic cylinder (11) is equipped with the first company
It connects arm (12), the opposite side of first linking arm (12) is fixedly installed with the first fixed plate (13), the featured plate (1)
Left side offer and leak out mouth (14), be fixedly installed on the right side of the featured plate (1) be located at leak out it is hinged above mouth (14)
Block (15) is fitted with hush panel (16) on the right side of the leakage mouth (14), is fixedly installed with position on the right side of the hush panel (16)
It is fixedly installed on the right side of featured plate (1) right side and the connecting plate (17) hinged with hinged block (15), the connecting plate (17)
The position-limited rack (18) that quantity is two, the opposite side of the position-limited rack (18) offer movable mouth (19), the baffle (2)
Opposite side be fixedly installed with the right side for being located at featured plate (1) and be located at the extension board of the opposite side of two position-limited racks (18)
(20), the opposite side of the extension board (20) is fixedly connected by limit plate (21), the front inserting of the position-limited rack (18)
There are the connection frame (22) for running through two position-limited racks (18) by movable mouth (19) and extending to right side, the right side of the connection frame (22)
Side is fixedly installed with the movable axis (23) that quantity is two and runs through limit plate (21), and the top of the movable axis (23) is living
It is dynamic to be equipped with second hydraulic cylinder (24), the second linking arm is movably installed on the right side of the top of the second hydraulic cylinder (24)
(25), the opposite side of second linking arm (25) is fixedly installed with the second fixed plate (26).
2. a kind of bulldozer perching knife pocket soil transport device according to claim 1, it is characterised in that: the featured plate (1)
Arc-shaped setting, the accessory plate (3) are inclined to set with protective plate (5).
3. a kind of bulldozer perching knife pocket soil transport device according to claim 1, it is characterised in that: the protective plate (5)
It is equidistantly uniformly distributed in longitudinal, the protective plate (5) is in 90 degree of bendings.
4. a kind of bulldozer perching knife pocket soil transport device according to claim 1, it is characterised in that: the connecting rod (9)
It is flexibly connected by connecting bearing with two link blocks (7), the body frame (8) is symmetrical set.
5. a kind of bulldozer perching knife pocket soil transport device according to claim 1, it is characterised in that: the attachment base (10)
Vertically hinged by connecting shaft with first hydraulic cylinder (11), the left end of first linking arm (12) is in U-shape setting.
6. a kind of bulldozer perching knife pocket soil transport device according to claim 1, it is characterised in that: the perching knife group (4)
Including quantity be four grafter knife and quantity be two arc perching knife, two arc perching knives are fixedly installed in four respectively
The front and the back side of a grafter knife.
7. a kind of bulldozer perching knife pocket soil transport device according to claim 1, it is characterised in that: the connection frame (22)
Be in U-shape setting, and the hush panel (16) is adapted with mouth (14) are leaked out.
8. a kind of bulldozer perching knife pocket soil transport device according to claim 1, it is characterised in that: the hinged block (15)
It is equidistantly uniformly distributed in longitudinal, fits on the right side of the left side and featured plate (1) of the connecting plate (17).
9. a kind of bulldozer perching knife pocket soil transport device according to claim 1, it is characterised in that: the limit plate (21)
To offer quantity be two and the equal compatible openings with movable axis (23) at top, first fixed plate (13) is solid with second
The front of fixed board (26) offers fixation hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910708000.XA CN110453740B (en) | 2019-08-01 | 2019-08-01 | Bulldozer shovel blade soil-loading transportation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910708000.XA CN110453740B (en) | 2019-08-01 | 2019-08-01 | Bulldozer shovel blade soil-loading transportation device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110453740A true CN110453740A (en) | 2019-11-15 |
| CN110453740B CN110453740B (en) | 2021-10-08 |
Family
ID=68484622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910708000.XA Active CN110453740B (en) | 2019-08-01 | 2019-08-01 | Bulldozer shovel blade soil-loading transportation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110453740B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08128066A (en) * | 1994-11-01 | 1996-05-21 | Kubota Corp | Mounting structure of dozer lifting hydraulic cylinder in back hoe |
| CN2585894Y (en) * | 2002-02-04 | 2003-11-12 | 中国人民解放军第六四四三工厂 | Power steering crawler dozer |
| CN203238686U (en) * | 2013-02-28 | 2013-10-16 | 山推工程机械股份有限公司 | Bulldozer scraper knife oil cylinder protecting plate |
| CN203701170U (en) * | 2014-02-27 | 2014-07-09 | 山推工程机械股份有限公司 | Front working device compensation mechanism of bulldozer |
| CN104164900A (en) * | 2013-05-16 | 2014-11-26 | 卡特彼勒环球矿业有限责任公司 | Load release height control system for excavators |
-
2019
- 2019-08-01 CN CN201910708000.XA patent/CN110453740B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08128066A (en) * | 1994-11-01 | 1996-05-21 | Kubota Corp | Mounting structure of dozer lifting hydraulic cylinder in back hoe |
| CN2585894Y (en) * | 2002-02-04 | 2003-11-12 | 中国人民解放军第六四四三工厂 | Power steering crawler dozer |
| CN203238686U (en) * | 2013-02-28 | 2013-10-16 | 山推工程机械股份有限公司 | Bulldozer scraper knife oil cylinder protecting plate |
| CN104164900A (en) * | 2013-05-16 | 2014-11-26 | 卡特彼勒环球矿业有限责任公司 | Load release height control system for excavators |
| CN203701170U (en) * | 2014-02-27 | 2014-07-09 | 山推工程机械股份有限公司 | Front working device compensation mechanism of bulldozer |
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| Publication number | Publication date |
|---|---|
| CN110453740B (en) | 2021-10-08 |
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