CN104088832B - A kind of disintegrating machine hydraulic system and disintegrating machine - Google Patents
A kind of disintegrating machine hydraulic system and disintegrating machine Download PDFInfo
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- CN104088832B CN104088832B CN201310353958.4A CN201310353958A CN104088832B CN 104088832 B CN104088832 B CN 104088832B CN 201310353958 A CN201310353958 A CN 201310353958A CN 104088832 B CN104088832 B CN 104088832B
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- solenoid directional
- control valve
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Abstract
The present invention proposes a kind of disintegrating machine hydraulic system, and including main hydraulic system and attachment hydraulic system, described main hydraulic system connects with described attachment hydraulic system, and described main hydraulic system includes hydraulic pump, pioneer pump, main valve, pilot valve and motor；Described attachment hydraulic system includes oil cylinder, switching valve and solenoid directional control valve；Described hydraulic pump connects with main valve, and described pioneer pump connects with described pilot valve and solenoid directional control valve, and described switching valve connects with oil cylinder.The disintegrating machine hydraulic system of said structure, compared with currently used disintegrating machine hydraulic system, relative inexpensiveness, there is advantages such as being easier to maintenance and maintenance.On the other hand, the present invention also proposes a kind of disintegrating machine including above-mentioned disintegrating machine hydraulic system.
Description
Technical field
The present invention relates to engineering machinery field, particularly to a kind of disintegrating machine hydraulic system and disintegration
Machine.
Background technology
In recent years, along with the sustained and rapid development of China's economy, development of automobile industry is swift and violent, and 2012
Year, the automobile volume of production and marketing of China all close to 20,000,000, China's automobile pollution nearly 100,000,003
Ten million, year nearly 4,000,000 of motor vehicle liquidation amount, it is contemplated that to the year two thousand twenty, China's automobile annual report
Useless amount is up to 12,000,000.
The recycling of abandoned car has become one huge industry of China, has also driven phase
Pass industry, such as the development of the industries such as disintegrating machine, at present, abandoned car disassembles what producer was used
Disintegrating machine, mainly from external import, the disintegrating machine from external import is primarily present following asking at present
Topic:
The first, hydraulic system is expensive.The disintegrating machine used at present, hydraulic system includes
Main hydraulic system and attachment hydraulic system, the hydraulic pressure system of the excavator in main hydraulic system and market
Unified cause, mainly includes hydraulic pump, pioneer pump, main valve, pilot valve and motor etc..Attachment liquid
Pressure system mainly includes switching valve, choke valve, hydraulic control one-way valve, hoist cylinder and folding oil cylinder
Deng.Owing to the hydraulic system of import disintegrating machine is relative complex, therefore, price comparison is expensive, greatly
Add greatly disassemble producer disassemble cost.
Secondly, unsightly and be not easy to maintenance, maintenance difficult.The disintegrating machine used at present,
Hydraulic system integrated level is low, therefore, revolution turntable inner tube way amount more, outward appearance unsightly and
It is not easy to M R.
3rd, poor universality, it is difficult to promote the use.The disintegrating machine of import at present, the most abroad
Producer is the interests safeguarding oneself, and the versatility of its parts is poor, when changing parts, relatively
Difficulty finds identical parts at home, often can only be by high price from external import, versatility
Poor, directly raise the maintenance cost of disintegrating machine, it is difficult to promote the use on a large scale.
In sum, the disintegration that a kind of cost is relatively low, easy to maintenance and versatility is good how is provided
Machine hydraulic system and disintegrating machine, become those skilled in the art to need badly and solved the technical problem that.
Summary of the invention
Based on the deficiencies in the prior art, one of the problem to be solved in the present invention is to provide a kind of cost
Relatively low disintegrating machine hydraulic system.
The two of the problem to be solved in the present invention are to provide one and include above-mentioned disintegrating machine hydraulic system
Disintegrating machine.
For solving one of above-mentioned technical problem, the present invention provides a kind of disintegrating machine hydraulic system, bag
Include main hydraulic system and attachment hydraulic system, described main hydraulic system and described attachment hydraulic system
Connection, described main hydraulic system includes hydraulic pump, pioneer pump, main valve, pilot valve and motor；
Described attachment hydraulic system includes oil cylinder, switching valve and solenoid directional control valve；Described hydraulic pump and master
Valve connect, described pioneer pump connects with described pilot valve and solenoid directional control valve, described switching valve and
Oil cylinder connects.
As the improvement on the one hand of the present invention a kind of disintegrating machine hydraulic system, described electromagnetic switch
Valve includes the first solenoid directional control valve, the second solenoid directional control valve, the 3rd solenoid directional control valve and the 4th electricity
Magnetic reversal valve, described first solenoid directional control valve connects with described 4th solenoid directional control valve, and described
Two solenoid directional control valves connect with described 3rd solenoid directional control valve.
As the improvement on the one hand of the present invention a kind of disintegrating machine hydraulic system, described pilot valve bag
Including the first pilot valve and the second pilot valve, described first pilot valve connects with described second pilot valve,
Described first pilot valve also connects with the first solenoid directional control valve, and described second pilot valve is also with described
Second solenoid directional control valve connection.
As the improvement on the one hand of the present invention a kind of disintegrating machine hydraulic system, described switching valve bag
Including the first switching valve and the second switching valve, described oil cylinder includes hoist cylinder and folding oil cylinder, institute
State hoist cylinder and described folding oil cylinder all includes rod chamber and rodless cavity, described rod chamber and institute
Stating rodless cavity and be equipped with hydraulic fluid port, described hoist cylinder, the hydraulic fluid port of folding oil cylinder are cut with first respectively
Change valve to connect with described second switching valve.
As the improvement on the one hand of the present invention a kind of disintegrating machine hydraulic system, described hoist cylinder
Quantity be two, described first switching valve and described hoist cylinder between pipeline on be additionally provided with
First one-way throttle valve and the second one-way throttle valve.
As the improvement on the one hand of the present invention a kind of disintegrating machine hydraulic system, described folding oil cylinder
Quantity be two, described second switching valve and described folding oil cylinder between pipeline on be additionally provided with
Flow divider-combiner.
As the improvement on the one hand of the present invention a kind of disintegrating machine hydraulic system, described motor includes
First motor and the second motor, the two ends of described first motor connect with described first switching valve,
The two ends of described second motor connect with described second switching valve.
As the improvement on the one hand of the present invention a kind of disintegrating machine hydraulic system, described main valve includes
First reversal valve and the second reversal valve, described first reversal valve and described first switching valve and described
Second solenoid directional control valve connection, described second reversal valve and the second switching valve and the first electromagnetic switch
Valve connects.
As the improvement on the one hand of the present invention a kind of disintegrating machine hydraulic system, described first electromagnetism
Reversal valve and the second reversal valve are that two clematis stem electromagnetism change valve；Described 3rd solenoid directional control valve and institute
Stating the 4th solenoid directional control valve is three-position four-way electromagnetic directional valve；Described first switching valve and described the
Two switching valves are two six direction changeover valves；Described first reversal valve and described second reversal valve are three
Position six-way transfer valve.
The disintegrating machine hydraulic system of said structure, for disintegrating machine, including main hydraulic system and
Attachment hydraulic system, main hydraulic system connects, at existing excavator hydraulic pressure with attachment hydraulic system
On the basis of system, exploitation forms, and compared with currently used disintegrating machine hydraulic system, has into
This relative moderate, it is easier to keep in repair and the advantage such as maintenance.
For solving the two of the problems referred to above, the present invention provides a kind of disintegrating machine, including first handle,
Second handle and disintegrating machine hydraulic system, described first handle, described second handle are respectively used to
Control the hoist cylinder in described disintegrating machine hydraulic system and folding oil cylinder, described disintegrating machine hydraulic pressure
System is hydraulic system as above.
It is provided with the disintegrating machine of above-mentioned disintegrating machine hydraulic system, there is low cost, easy to maintenance etc.
Advantage.
Accompanying drawing explanation
The accompanying drawing of the part constituting the present invention is used for providing a further understanding of the present invention, this
The schematic description and description of invention is used for explaining the present invention, is not intended that the present invention's
Improper restriction.
Fig. 1 is the schematic diagram of a kind of embodiment of disintegrating machine hydraulic system of the present invention；
Fig. 2 is the structural representation of the first control crank of disintegrating machine hydraulic system of the present invention；
Fig. 3 is the structural representation of the second control crank of disintegrating machine hydraulic system of the present invention；
In Fig. 1 to Fig. 3, the corresponding relation of reference is:
1a the first pilot valve 1b the second pilot valve 2a the first electromagnetism changes
To valve
2b the second solenoid directional control valve 3a the 3rd solenoid directional control valve 3b the 4th electromagnetism changes
To valve
4 the 5th solenoid directional control valve 5a first switch valve 5b second and switch valve
6a the first motor 6b the second motor 7 hoist cylinder
Unidirectional shutoff valve 9 check valve of 8a the first one-way throttle valve 8b second
10 folding oil cylinder 11 flow divider-combiner 12 main valves
13a the first hydraulic pump 13b the second hydraulic pump 14 pioneer pump
15 overflow valve 16 electromotor 17 first reversal valves
18 second reversal valve 19 fuel tanks
20 first handle 201 first button 202 second buttons
30 second handle 301 the 3rd button 302 the 4th buttons
Detailed description of the invention
It should be noted that in the case of not conflicting, the embodiment in the present invention and embodiment
In feature can be mutually combined.Describe this below with reference to the accompanying drawings and in conjunction with the embodiments in detail
Invention.
Disintegrating machine hydraulic system as shown in Figure 1, including main hydraulic system and attachment hydraulic system,
Main hydraulic system with attachment hydraulic system connect, specifically, including pilot valve, solenoid directional control valve,
Switching valve, motor, oil cylinder, oil pump and fuel tank 19.Specifically, pilot valve includes first first
Pilot valve 1a and the second pilot valve 1b, the first pilot valve 1a and the second pilot valve 1b pass through pipeline
Connection, solenoid directional control valve include the first solenoid directional control valve 2a, the second solenoid directional control valve 2b, the
Three solenoid directional control valve 3a, the 4th solenoid directional control valve 3b and the 5th solenoid directional control valve 4.Switching valve
Including the first switching valve 5a and second switching valve 5b.First pilot valve 1a and the first electromagnetic switch
Valve 2a connects, and the first pilot valve 1a is for controlling the first solenoid directional control valve 2a, and the first electromagnetism changes
Connect to valve 2a and the 4th solenoid directional control valve 3b.Second pilot valve 1b and the second electromagnetic switch
Valve 2b connects, and the second pilot valve 1b is for controlling the second solenoid directional control valve 2b, the second electromagnetism
Reversal valve 2b and the 3rd solenoid directional control valve 3a connection.It should be noted that the first electromagnetic switch
Valve 2a and the second solenoid directional control valve 2b is two clematis stem solenoid directional control valves, the 3rd electromagnetic switch
Valve 3a and the 4th solenoid directional control valve 3b is three-position four-way electromagnetic directional valve, the 5th electromagnetic switch
Valve 4 is two-bit triplet solenoid directional control valve.
In technique scheme, the first pilot valve 1a, the second pilot valve 1b pass through pipeline and elder generation
Leading pump 14 and fuel tank 19 connects, pioneer pump 14 is the first pilot valve 1a and the second pilot valve
1b provides pressure oil, the hydraulic oil warp flowed out from the first pilot valve 1a and the second pilot valve 1b
Pipeline flows back to fuel tank 19.It should be noted that pioneer pump 14 is by the electromotor 16 of disintegrating machine
Being rotated, electromotor 16 is preferably Diesel engine, it should be noted that can also be used with electricity
Motivation replaces electromotor.It addition, the in-line of pioneer pump 14 is additionally provided with overflow valve 15.
In technique scheme, disintegrating machine hydraulic system includes main valve 12, specifically, disintegrates
Machine hydraulic system also includes the first reversal valve 17 and the second reversal valve 18, the first reversal valve 17
Connecting with the second solenoid directional control valve 2b, the first reversal valve 17 also connects with the first switching valve 5a,
First switching valve 5a and the first motor 6a connects, the first also unidirectional with first section of valve 5a of switching
Stream valve 8a, the second unidirectional shutoff valve 8b and check valve 9 connect, the first unidirectional shutoff valve 8a,
Second unidirectional shutoff valve 8b is connected with hoist cylinder 7, hoist cylinder 7 be provided with rod chamber and
Be equipped with on rodless cavity, rod chamber and rodless cavity for the first unidirectional shutoff valve 8a and second
The hydraulic fluid port of unidirectional shutoff valve 8b connection, the quantity of hoist cylinder 7 is two, and two liftings
Being interconnected without bar of oil cylinder 7, rod chamber is also interconnected.
In technique scheme, the first switching valve 5a is two six direction changeover valves, the first commutation
Valve the 17, second reversal valve 18 is three six-way transfer valves, and the first motor 6a is for travelling horse
Reach.
Disintegrating machine hydraulic system also includes folding oil cylinder 10, flow divider-combiner the 11, second motor
6b and second switching valve 5b, the second switching valve 5b is two six direction changeover valves, folding oil cylinder
The structure of 10 is similar with the structure of hoist cylinder 7, and its quantity is also two, the most superfluous at this
State.Folding oil cylinder 10 connects with flow divider-combiner 11, connects with the second switching valve 5b simultaneously,
Flow divider-combiner 11 connects with the second switching valve 5b, the second switching valve 5b and the second reversal valve
18 connections, the second motor 6b and second switching valve 5b connection.It should be noted that first
The working position of switching valve 5a and second switching valve 5b is controlled by the 5th solenoid directional control valve 4.
Disintegrating machine hydraulic system also includes the first hydraulic pump 13a providing pressure oil for main valve 12
It is placed in the second hydraulic pump 13b, the first hydraulic pump 13a, one end of the second hydraulic pump 13b
In fuel tank 19, other one end connects with main valve 12, the first hydraulic pump 13a and the second hydraulic pump
13b is variable pump, and is rotated by electromotor 16.
It should be noted that the disintegrating machine hydraulic system of said structure, also other embodiments,
As the first solenoid directional control valve 2a and the second solenoid directional control valve 2b is changed respectively by two two-bit triplets
Solenoid directional control valve replaces.First switching valve 5a and the second switching valve 5b changes respectively by two two
Three-way solenoid valve replaces, and the kind of valve can be varied, is not especially limited at this.
As shown in Figures 2 and 3, disintegrating machine also includes for controlling oil in disintegrating machine hydraulic system
The pilot handle of cylinder, the quantity of handle is two, respectively first handle 20 and second handle
30, first handle 20 is respectively equipped with the first button 201 and the second button 202, second-hand
Handle 30 is provided with the 3rd button 301 and the 4th button 302.
In technique scheme, the operation principle of hoist cylinder 7 is as follows:
Press the first button 201 of first handle 20, the first solenoid directional control valve 2a, the second electricity
Magnetic reversal valve 2b and the 5th solenoid directional control valve 4 are energized, and pioneer pump 14 starts pump oil, pressure oil
The first reversal valve 17 in the second solenoid directional control valve 2b enters main valve 12, meanwhile, guide
Pressure oil in pump 14 controls the first switching valve 5a commutation after the second solenoid directional control valve 2b,
Pressure oil in second hydraulic pump 13b flows through first reversal valve the 17, first unidirectional shutoff valve 8a
Rear entrance hoist cylinder 7 rodless cavity, hoist cylinder 7 stretches out.
Press the second button 202 of first handle 20, the first solenoid directional control valve 2a, the second electricity
Magnetic reversal valve 2b, the 3rd solenoid directional control valve 3a and the 5th solenoid directional control valve 4 are energized, pioneer pump
14 start working pump oil, and pressure oil changes reversal valve 2b through the second electromagnetism and enters in main valve 12
First reversal valve 17, meanwhile, the pressure oil in pioneer pump 14 is through the second solenoid directional control valve 2b
Rear control first switches valve 5a commutation, and the pressure oil in the second hydraulic pump 13b flows through first and changes
Hoist cylinder 7 rod chamber is entered after valve 17, check valve 9 and the second unidirectional shutoff valve 8b,
Hoist cylinder 7 bounces back.
The operation principle of folding oil cylinder 10 is as follows:
Press second handle 30 the 3rd button 301, the first solenoid directional control valve 2a, the second electromagnetism
Reversal valve 2b, the 4th solenoid directional control valve 3b and the 5th solenoid directional control valve 4 are energized, pioneer pump 14
Start working, the pressure oil the second commutation in the first solenoid directional control valve 2a enters main valve 12
Valve 18, meanwhile, the pressure oil in pioneer pump 14 controls after the second solenoid directional control valve 2b
Second switching valve 5b commutation, the pressure oil in the first hydraulic pump 13a through the second reversal valve 18,
Entering the rodless cavity of folding oil cylinder 10 after flow divider-combiner 11, folding oil cylinder 10 stretches out.
Press the 4th button 302 of second handle 30, the first solenoid directional control valve 2a, the second electricity
Magnetic reversal valve 2b, the 4th solenoid directional control valve 3b and the 5th solenoid directional control valve 4 are energized, pioneer pump
14 start working, and pressure oil enters second in main valve 12 through the first solenoid directional control valve 2a
Reversal valve 18, meanwhile, the pressure oil in pioneer pump 14 is after the second solenoid directional control valve 2b
Controlling the second switching valve 5b commutation, the pressure oil in the first hydraulic pump 13a is through the second reversal valve
Entering folding oil cylinder 10 rod chamber after 18, folding oil cylinder 10 is retracted.
The disintegrating machine hydraulic system of said structure, advantage specific as follows:
First, low cost.The disintegrating machine hydraulic system of said structure, at existing excavator hydraulic pressure
On the basis of system, exploitation forms, compared with currently used disintegrating machine hydraulic system, and cost phase
To cheap, it is more easy to promote the use on a large scale.
Secondly, maintain and overhaul conveniently.The disintegrating machine hydraulic system of said structure, adheres to hydraulic pressure
System, relative to currently used hydraulic system, enormously simplify the quantity of fluid pressure line, pipeline
Layout is more attractive in appearance, maintains and overhaul more convenient.
Again, this versatility is good.The disintegrating machine hydraulic system of said structure, relative to making at present
Hydraulic system, universal component is more, and therefore, versatility is good, change parts time cost
Lower.
In addition, the present invention also proposes a kind of disintegrating machine, including first handle 20, second
Handle 30 and disintegrating machine hydraulic system, described first handle 20, described second handle 30 points
Yong Yu not control the hoist cylinder 7 in described disintegrating machine hydraulic system and folding oil cylinder 10, institute
Stating disintegrating machine hydraulic system is hydraulic system as above.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention,
All within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. made,
Should be included within the scope of the present invention.
Claims (6)
1. a disintegrating machine hydraulic system, including main hydraulic system and attachment hydraulic system, institute
State main hydraulic system to connect with described attachment hydraulic system, it is characterised in that:
Described main hydraulic system includes hydraulic pump, pioneer pump (14), main valve (12), elder generation
Pilot valve and motor；
Described attachment hydraulic system includes oil cylinder, switching valve and solenoid directional control valve；
Described hydraulic pump connects with main valve (12), described pioneer pump (14) and described pilot valve
And solenoid directional control valve connection, described switching valve connects with oil cylinder；
Described solenoid directional control valve include the first solenoid directional control valve (2a), the second solenoid directional control valve (2b),
3rd solenoid directional control valve (3a) and the 4th solenoid directional control valve (3b), described first electromagnetic switch
Valve (2a) connects with described 4th solenoid directional control valve (3b), described second solenoid directional control valve (2b)
Connect with described 3rd solenoid directional control valve (3a)；
Described pilot valve includes the first pilot valve (1a) and the second pilot valve (1b), institute
State the first pilot valve (1a) to connect with described second pilot valve (1b)；Described switching valve bag
Include the first switching valve (5a) and the second switching valve (5b), described first switching valve (5a)
Connect with described oil cylinder with the second switching valve (5b)；
Described motor includes the first motor (6a) and the second motor (6b), described first motor
(6a) He the second motor (6b) switches valve with described first switching valve (5a) and second respectively
(5b) connection；
Described main valve (12) includes the first reversal valve (17) and the second reversal valve (18), institute
State the first reversal valve (17) to connect with described first switching valve (5a), described second reversal valve
(18) connect with the second switching valve (5b)；
Described first pilot valve (1a) also connects with the first solenoid directional control valve (2a), and described
Two pilot valves (1b) also connect with described second solenoid directional control valve (2b)；
First reversal valve (17) also connects with described second solenoid directional control valve (2b), and described
Two reversal valves (18) also connect with the first solenoid directional control valve (2a).
Disintegrating machine hydraulic system the most according to claim 1, it is characterised in that described
Oil cylinder includes hoist cylinder (7) and folding oil cylinder (10), described hoist cylinder (7) and
Described folding oil cylinder (10) all includes rod chamber and rodless cavity, described rod chamber and described without bar
Chamber is equipped with hydraulic fluid port, described hoist cylinder (7), folding oil cylinder (10) hydraulic fluid port respectively with
First switching valve (5a) connects with described second switching valve (5b).
Disintegrating machine hydraulic system the most according to claim 2, it is characterised in that institute
The quantity stating hoist cylinder (7) is two, described first switching valve (5a) and described lifting
The first one-way throttle valve (8a) and the second unidirectional joint it is additionally provided with on pipeline between oil cylinder (7)
Stream valve (8b).
Disintegrating machine hydraulic system the most according to claim 2, it is characterised in that institute
The quantity stating folding oil cylinder (10) is two, and described second switching valve (5b) is opened with described
Close and be additionally provided with flow divider-combiner (11) on the pipeline between oil cylinder (10).
Disintegrating machine hydraulic system the most according to claim 1, it is characterised in that described
First solenoid directional control valve (2a) and the second solenoid directional control valve (2b) are that two clematis stem electromagnetism change valve；
Described 3rd solenoid directional control valve (3a) and described 4th solenoid directional control valve (3b) are 3-position 4-way
Solenoid directional control valve；Described first switching valve (5a) and described second switching valve (5b) are two
Six direction changeover valves；Described first reversal valve (17) and described second reversal valve (18) are three
Six-way transfer valve.
6. a disintegrating machine, including first handle (20), second handle (30) and disintegration
Machine hydraulic system, described first handle (20), described second handle (30) are respectively used to
Control the hoist cylinder (7) in described disintegrating machine hydraulic system and folding oil cylinder (10), its
Being characterised by, described disintegrating machine hydraulic system is according to any one of claim 1 to 5
Hydraulic system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310353958.4A CN104088832B (en) | 2013-08-14 | 2013-08-14 | A kind of disintegrating machine hydraulic system and disintegrating machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310353958.4A CN104088832B (en) | 2013-08-14 | 2013-08-14 | A kind of disintegrating machine hydraulic system and disintegrating machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104088832A CN104088832A (en) | 2014-10-08 |
| CN104088832B true CN104088832B (en) | 2016-12-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310353958.4A Expired - Fee Related CN104088832B (en) | 2013-08-14 | 2013-08-14 | A kind of disintegrating machine hydraulic system and disintegrating machine |
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| Country | Link |
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| CN (1) | CN104088832B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104358285B (en) * | 2014-10-30 | 2016-08-17 | 华侨大学 | The energy-saving turntable drive system of excavator based on double motor and hydraulic accumulator |
| CN109654075A (en) * | 2018-12-07 | 2019-04-19 | 贵州航天特种车有限责任公司 | A kind of walking fluid power system on chassis |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101564893A (en) * | 2009-05-25 | 2009-10-28 | 江苏佳成机械有限公司 | Hydraulic drive unit for high-speed continuous hollow blow molding machine |
| CN201588250U (en) * | 2010-01-21 | 2010-09-22 | 徐州徐工挖掘机械有限公司 | Pilot control-convertible control system for hydraulic excavator |
| CN102852869A (en) * | 2011-06-30 | 2013-01-02 | 日立建机株式会社 | Hydraulic circuit for counterweight attaching/detaching device |
| CN203384146U (en) * | 2013-08-14 | 2014-01-08 | 湖南万容科技股份有限公司 | Disassembling machine hydraulic system and disassembling machine |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4155381B2 (en) * | 2000-10-06 | 2008-09-24 | 株式会社小松製作所 | Attachment control device for hydraulic excavator |
| JP4423149B2 (en) * | 2004-09-22 | 2010-03-03 | 日立建機株式会社 | Construction machinery |
-
2013
- 2013-08-14 CN CN201310353958.4A patent/CN104088832B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101564893A (en) * | 2009-05-25 | 2009-10-28 | 江苏佳成机械有限公司 | Hydraulic drive unit for high-speed continuous hollow blow molding machine |
| CN201588250U (en) * | 2010-01-21 | 2010-09-22 | 徐州徐工挖掘机械有限公司 | Pilot control-convertible control system for hydraulic excavator |
| CN102852869A (en) * | 2011-06-30 | 2013-01-02 | 日立建机株式会社 | Hydraulic circuit for counterweight attaching/detaching device |
| CN203384146U (en) * | 2013-08-14 | 2014-01-08 | 湖南万容科技股份有限公司 | Disassembling machine hydraulic system and disassembling machine |
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| CN104088832A (en) | 2014-10-08 |
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