CN104099855A - A counter weight adjusting device and engineering machine tool for engineering machine tool - Google Patents
A counter weight adjusting device and engineering machine tool for engineering machine tool Download PDFInfo
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- CN104099855A CN104099855A CN201410373414.9A CN201410373414A CN104099855A CN 104099855 A CN104099855 A CN 104099855A CN 201410373414 A CN201410373414 A CN 201410373414A CN 104099855 A CN104099855 A CN 104099855A
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- liquid reserve
- reserve tank
- liquid
- counterweight
- adjusting device
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- 239000007788 liquid Substances 0.000 claims abstract description 259
- 238000005086 pumping Methods 0.000 claims abstract description 32
- 230000005484 gravity Effects 0.000 claims abstract description 16
- 238000009434 installation Methods 0.000 claims description 30
- 239000012530 fluid Substances 0.000 claims description 17
- 238000004891 communication Methods 0.000 claims description 16
- 238000005259 measurement Methods 0.000 claims description 15
- 230000001276 controlling effect Effects 0.000 claims description 13
- 230000001105 regulatory effect Effects 0.000 claims description 11
- 238000006073 displacement reaction Methods 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 3
- 230000003044 adaptive effect Effects 0.000 description 3
- 239000010720 hydraulic oil Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 206010020852 Hypertonia Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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Abstract
The invention provides a counterweight adjusting device for engineering machinery and the engineering machinery, wherein the counterweight adjusting device comprises: a pumping device comprising a hydraulic pump; the hydraulic system comprises a first liquid storage tank and a second liquid storage tank, wherein the first liquid storage tank is communicated with the second liquid storage tank, and a hydraulic loop is formed among the first liquid storage tank, the second liquid storage tank and a hydraulic pump; wherein, first liquid reserve tank and second liquid reserve tank are installed respectively in the different positions of engineering machine's organism, and adjust engineering machine's focus through the weight of the counter weight liquid of control pumping device in adjusting first liquid reserve tank and the second liquid reserve tank. After the counterweight adjusting device is installed in the engineering machinery, the counterweight at the first liquid storage tank and the counterweight at the second liquid storage tank can be conveniently adjusted by adjusting the weight of the counterweight liquid in the first liquid storage tank and the second liquid storage tank, so that the weight state of the engineering machinery is effectively improved, the gravity center of the engineering machinery is adjusted, and the adaptability of the engineering machinery to the working condition is improved.
Description
Technical field
The present invention relates to counterweight and regulate field, more specifically, relate to a kind of counterweight adjusting device for engineering machinery and engineering machinery.
Background technology
The distribution of weight of engineering machinery complete machine under unloaded and full load condition is different often.If paver is when the unloaded transition, hang up screed, center of gravity is just moved after the meeting, causes front end perk; And in the time of paving operation, screed is suspended on material, main frame does not need to lift the weight of screed, and center of gravity will move forward like this.
Such situation just need to install adjustable counterweight additional in engineering machinery, to reach the effect of balance center of gravity.
Summary of the invention
The present invention aims to provide a kind of counterweight adjusting device for engineering machinery and engineering machinery, to solve the problem of unbalance of engineering machinery of prior art.
For solving the problems of the technologies described above, according to an aspect of the present invention, provide a kind of counterweight adjusting device for engineering machinery, comprising: pumping installations, pumping installations comprises hydraulic pump; The first liquid reserve tank and the second liquid reserve tank, the first liquid reserve tank is communicated with the second liquid reserve tank, and forms hydraulic circuit between the first liquid reserve tank, the second liquid reserve tank and hydraulic pump; Wherein, the first liquid reserve tank and the second liquid reserve tank are arranged on respectively the diverse location of the body of engineering machinery, and regulate the weight of the counterweight liquid in the first liquid reserve tank and the second liquid reserve tank to regulate the center of gravity of engineering machinery by controlling pumping installations.
Preferably, counterweight adjusting device comprises: measurement mechanism, and measurement mechanism is for measuring at least one the weight of counterweight liquid of the first liquid reserve tank and the second liquid reserve tank; Control device, control device is connected with measurement mechanism and pumping installations communication respectively, control device receive measurement mechanism measure counterweight liquid weight information and according to weight information control pumping installations.
Preferably, hydraulic pump is two-way variable displacement pump, and hydraulic pump is arranged on the fluid pressure line that connects the first liquid reserve tank and the second liquid reserve tank, and under the control of control device, pumping installations can be sent into the counterweight liquid pump in the first liquid reserve tank the second liquid reserve tank or the counterweight liquid pump in the second liquid reserve tank be sent into the first liquid reserve tank.
Preferably, pumping installations also comprises drive unit, and drive unit is connected with hydraulic pump drive, and control device is connected with drive unit and hydraulic pump communication respectively, and control device is by the stroking mechanism control pumping installations of accessory drive and hydraulic pump.
Preferably, in the first liquid reserve tank and the second liquid reserve tank one is arranged on the front portion of the body of engineering machinery, and another in the first liquid reserve tank and the second liquid reserve tank is arranged on the rear portion of body.
Preferably, the number of the first liquid reserve tank is multiple, and multiple the first liquid reserve tanks are in parallel and be symmetrically arranged on the rear portion of body; And/or the number of the second liquid reserve tank is multiple, multiple the second liquid reserve tanks are in parallel and be symmetrically arranged on the front portion of body.
Preferably, counterweight adjusting device also comprises control valve group, control valve group is arranged between hydraulic pump and the first liquid reserve tank and/or between hydraulic pump and the second liquid reserve tank, control device is also connected with the communication of control valve group, when the number of the first liquid reserve tank is while being multiple, regulate the distribution of weight of the counterweight liquid between multiple the first liquid reserve tanks by controlling pumping installations and control valve group, and when the quantity of the second liquid reserve tank is while being multiple, regulate the distribution of weight of the counterweight liquid between multiple the second liquid reserve tanks by controlling pumping installations and control valve group.
Preferably, hydraulic pump is two-way variable displacement pump, the number of the first liquid reserve tank is one, the number of the second liquid reserve tank is multiple, control valve group comprises and multiple the second liquid reserve tanks multiple control valves one to one, control device is connected with the control end of each control valve respectively, control valve comprises the first hydraulic fluid port and the second hydraulic fluid port, wherein, the first hydraulic fluid port of each control valve is all connected with the first actuator port of hydraulic pump, and the second hydraulic fluid port of each control valve is connected with corresponding the second liquid reserve tank respectively, the first liquid reserve tank is connected with the second actuator port of hydraulic pump.
Preferably, measurement mechanism comprises multiple liquid level sensors, and multiple liquid level sensor is arranged on multiple the second liquid reserve tanks correspondingly, for detection of the liquid level in each the second liquid reserve tank; Control device is connected with each liquid level sensor communication respectively, and control device receives the liquid level information of each the second liquid reserve tank that multiple liquid level sensors detect as weight information, and according to each liquid level information, the liquid communication port of each control valve is regulated.
Preferably, in the first liquid reserve tank and the second liquid reserve tank, at least one is the casing of sealing, and is provided with breather valve on the casing of sealing.
According to another aspect of the present invention, provide a kind of engineering machinery, comprised counterweight adjusting device, counterweight adjusting device is above-mentioned counterweight adjusting device.
Preferably, engineering machinery is paver, and the first liquid reserve tank is arranged at the rear portion of the body of paver, and the second liquid reserve tank is arranged at the front portion of the body of paver.
Between the first liquid reserve tank of the counterweight adjusting device in technical scheme of the present invention and the second liquid reserve tank, be communicated with, and between first liquid reserve tank the second liquid reserve tank and hydraulic pump, be to form hydraulic circuit, like this, just the weight of the counterweight liquid in the first liquid reserve tank and the second liquid reserve tank can be regulated by controlling hydraulic pump, and then the center of gravity of engineering machinery can be regulated.For example, in the time that the first liquid reserve tank and the second liquid reserve tank are arranged on to the front and rear of body of engineering machinery correspondingly, can regulate the front and back position of body center of gravity; In the time the first liquid reserve tank and the second liquid reserve tank being arranged on correspondingly to the left side of body and right side, can regulate the position, left and right of body center of gravity.
Counterweight adjusting device in the present invention is simple in structure, easy to operate, and can more easily this counterweight adjusting device be arranged in the engineering machinery that need to regulate counterweight.After counterweight adjusting device in the present invention is arranged in engineering machinery, can be by regulating the weight of the counterweight liquid in the first liquid reserve tank and the second liquid reserve tank to regulate more easily the counterweight at the first liquid reserve tank and the second liquid reserve tank place, thereby effectively improve the weight state of this project machinery, regulate the center of gravity of this project machinery, improve the adaptive capacity of this project machinery to operating mode.
Brief description of the drawings
The accompanying drawing that forms the application's a part is used to provide a further understanding of the present invention, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 has schematically shown the structural representation of the counterweight adjusting device in the present invention; And
Fig. 2 has schematically shown the structural representation of the control valve in Fig. 1.
Reference numeral in figure: 10, hydraulic pump; 20, the first liquid reserve tank; 30, the second liquid reserve tank; 31, breather valve; 40, control valve; 41, the first hydraulic fluid port; 42, the second hydraulic fluid port; 43, control end; 50, liquid level sensor; 60, control device; 70, drive unit.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiments of the invention are elaborated, but the multitude of different ways that the present invention can be defined by the claims and cover is implemented.
It should be noted in the discussion above that the direction of " front, rear, left and right " is consistent with the direction of engineering machinery front, rear, left and right in motion in this application.
According to an aspect of the present invention, provide a kind of counterweight adjusting device, please refer to Fig. 1 to Fig. 2, this counterweight adjusting device comprises: pumping installations, and pumping installations comprises hydraulic pump 10; The first liquid reserve tank 20 and the second liquid reserve tank 30, the first liquid reserve tanks 20 are communicated with the second liquid reserve tank 30, and form hydraulic circuit between the first liquid reserve tank 20, the second liquid reserve tank 30 and hydraulic pump 10; Wherein, the first liquid reserve tank 20 and the second liquid reserve tank 30 are arranged on respectively the diverse location of the body of engineering machinery, and regulate the weight of the counterweight liquid in the first liquid reserve tank 20 and the second liquid reserve tank 30 to regulate the center of gravity of engineering machinery by controlling described pumping installations.
Between the first liquid reserve tank 20 of the counterweight adjusting device in technical scheme of the present invention and the second liquid reserve tank 30, be communicated with, and between the first liquid reserve tank 20, the second liquid reserve tank 30 and hydraulic pump 10, be to form hydraulic circuit, like this, just the weight of the counterweight liquid in the first liquid reserve tank 20 and the second liquid reserve tank 30 can be regulated by the work of controlling hydraulic pump 10, and then the center of gravity of engineering machinery can be regulated.For example, in the time that the first liquid reserve tank 20 and the second liquid reserve tank 30 are arranged on to the front and rear of body of engineering machinery correspondingly, can regulate the front and back position of body center of gravity; In the time the first liquid reserve tank 20 and the second liquid reserve tank 30 being arranged on correspondingly to the left side of body and right side, can regulate the position, left and right of body center of gravity.
Counterweight adjusting device in the present invention is simple in structure, easy to operate, and can more easily this counterweight adjusting device be arranged in the engineering machinery that need to regulate counterweight.After counterweight adjusting device in the present invention is arranged in engineering machinery, can be by regulating the weight of the counterweight liquid in the first liquid reserve tank 20 and the second liquid reserve tank 30 to regulate more easily the counterweight at the first liquid reserve tank 20 and the second liquid reserve tank 30 places, thereby effectively improve the weight state of this project machinery, regulate the center of gravity of this project machinery, improve the adaptive capacity of this project machinery to operating mode.
Preferably, counterweight adjusting device comprises: measurement mechanism, and measurement mechanism is for measuring at least one the weight of counterweight liquid of the first liquid reserve tank 20 and the second liquid reserve tank 30; Control device, control device is connected with measurement mechanism and pumping installations communication respectively, control device receive measurement mechanism measure counterweight liquid weight information and according to weight information control pumping installations.
Preferably, hydraulic pump 10 is two-way variable displacement pump, and hydraulic pump 10 is arranged on the fluid pressure line that connects the first liquid reserve tank 20 and the second liquid reserve tank 30, and under the control of control device, pumping installations can be sent into the counterweight liquid pump in the first liquid reserve tank 20 the second liquid reserve tank 30 or the counterweight liquid pump in the second liquid reserve tank 30 be sent into the first liquid reserve tank 20.Like this, by controlling the work of hydraulic pump 10, just the counterweight liquid in the first liquid reserve tank 20 can be transported in the second liquid reserve tank 30, or the hydraulic oil in the second liquid reserve tank 30 is transported in the first liquid reserve tank 20, and then realize the weight of the first liquid reserve tank 20 and the second liquid reserve tank 30 is regulated, thereby realize adjusting to paver center of gravity.
Preferably, pumping installations also comprises drive unit 70, drive unit 70 drives and is connected with hydraulic pump 10, and control device 60 is connected with drive unit 70 and hydraulic pump 10 communications respectively, and control device 60 is by the stroking mechanism control pumping installations of accessory drive 70 and hydraulic pump 10.
Preferably, in the first liquid reserve tank 20 and the second liquid reserve tank 30 one is arranged on the front portion of the body of engineering machinery, and another in the first liquid reserve tank 20 and the second liquid reserve tank 30 is arranged on the rear portion of body.
Preferably, the number of the first liquid reserve tank 20 is multiple, and multiple the first liquid reserve tanks 20 are in parallel and be symmetrically arranged on the rear portion of body; And/or the number of the second liquid reserve tank 30 is multiple, multiple the second liquid reserve tanks 30 are in parallel and be symmetrically arranged on the front portion of body.According to the needs of actual conditions, determine the quantity of the first liquid reserve tank 20 and the second liquid reserve tank 30.
Preferably, counterweight adjusting device also comprises the control valve group being arranged between hydraulic pump 10 and the first liquid reserve tank 20 and/or between hydraulic pump 10 and the second liquid reserve tank 30, control device is also connected with the communication of control valve group, when the number of the first liquid reserve tank 20 is while being multiple, regulate the distribution of weight of the counterweight liquid between multiple the first liquid reserve tanks 20 by controlling pumping installations and control valve group, and when the quantity of the second liquid reserve tank 30 is while being multiple, regulate the distribution of weight of the counterweight liquid between multiple the second liquid reserve tanks 30 by controlling pumping installations and control valve group.
Preferably, as shown in Figure 2, hydraulic pump 10 is two-way variable displacement pump, the number of the first liquid reserve tank 20 is one, the number of the second liquid reserve tank 30 is multiple, control valve group comprises and multiple the second liquid reserve tanks 30 multiple control valves 40 one to one, and control device is connected with the control end 43 of each control valve 40 respectively, and control valve 40 comprises the first hydraulic fluid port 41 and the second hydraulic fluid port 42; Wherein, the first hydraulic fluid port 41 of each control valve 40 is all connected with the first actuator port of hydraulic pump 10, and the second hydraulic fluid port 42 of each control valve 40 is connected with corresponding the second liquid reserve tank 30 respectively, and the first liquid reserve tank 20 is connected with the second actuator port of hydraulic pump 10.Like this, can regulate by controlling corresponding control valve 40 weight of the hydraulic oil in each the second liquid reserve tank 30, and then realize the weight adjusting to each the second liquid reserve tank 30.Preferably, control valve 40 is 2/2-way valve.Preferably, control valve 40 is 2/2-way electromagnetic valve.Preferably, the number of the first liquid reserve tank 20 is one, and the number of the second liquid reserve tank 30 is two.
Because the back space of the body of some engineering machinery is less, as in paver, the rear portion of paver is provided with hopper, there is no multiple the first liquid reserve tanks 20 of unnecessary space mounting, so, the number of general the first liquid reserve tank 20 is set to one, and the number of the second liquid reserve tank 30 is set to two.
Preferably, measurement mechanism comprises multiple liquid level sensors 50, and multiple liquid level sensor 50 is arranged on multiple the second liquid reserve tanks 30 correspondingly, for detection of the liquid level in each the second liquid reserve tank 30; Control device 60, control device 60 is connected with each liquid level sensor 50 communications respectively, control device 60 receives the liquid level information of each the second liquid reserve tank 30 that multiple liquid level sensors 50 detect as weight information, and according to each liquid level information, the liquid communication port of corresponding control valve 40 is regulated.Like this, can control according to the liquid level information in each the second liquid reserve tank 30 break-make of corresponding control valve 40.Preferably, control device is according to the size of the liquid communication port of the corresponding control valve 40 of each hydraulic pressure information control.
In this application, by control device, the unified of drive unit 70, hydraulic pump 10 and control valve 40 controlled, can be realized the step-less adjustment to counterweight liquid.Preferably, drive unit 70 is prime mover.Preferably, the hydraulic tube being applied in the application is carrier pipe.Preferably, this carrier pipe is hard tube.
Preferably, in the first liquid reserve tank 20 and the second liquid reserve tank 30, at least one is the casing of sealing, and is provided with breather valve 31 on the casing of sealing.Like this, can prevent the hypertonia in the second liquid reserve tank 30, and breather valve 31 can be discharged the air in the second liquid reserve tank 30, also can suck outside air, counterweight liquid is successfully flowed into or flow out the second liquid reserve tank 30.
According to another aspect of the present invention, provide a kind of engineering machinery, comprised counterweight adjusting device, counterweight adjusting device is above-mentioned counterweight adjusting device.After counterweight adjusting device in the present invention is arranged in engineering machinery, can be by regulating the weight of the hydraulic oil in the first liquid reserve tank 20 and the second liquid reserve tank 30 to regulate more easily the weight of the first liquid reserve tank 20 and the second liquid reserve tank 30, thereby effectively improve the weight state of this project machinery, improve the adaptive capacity of this project machinery to operating mode.
Preferably, engineering machinery is paver, and the first liquid reserve tank 20 is arranged at the rear portion of the body of paver, and the second liquid reserve tank 30 is arranged at the front portion of the body of paver.Because this paver back space is less, because in paver, the rear portion of paver is provided with hopper, there is no multiple the first liquid reserve tanks 20 of unnecessary space mounting, so, generally the first liquid reserve tank 20 is set to one, the second liquid reserve tank 30 is set to two.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (12)
1. for a counterweight adjusting device for engineering machinery, it is characterized in that, comprising:
Pumping installations, described pumping installations comprises hydraulic pump (10);
The first liquid reserve tank (20) and the second liquid reserve tank (30), described the first liquid reserve tank (20) is communicated with described the second liquid reserve tank (30), and forms hydraulic circuit between described the first liquid reserve tank (20), described the second liquid reserve tank (30) and described hydraulic pump (10);
Wherein, described the first liquid reserve tank (20) and described the second liquid reserve tank (30) are arranged on respectively the diverse location of the body of described engineering machinery, and regulate the weight of the counterweight liquid in described the first liquid reserve tank (20) and described the second liquid reserve tank (30) to regulate the center of gravity of described engineering machinery by controlling described pumping installations.
2. counterweight adjusting device according to claim 1, is characterized in that, described counterweight adjusting device comprises:
Measurement mechanism, described measurement mechanism is used for measuring at least one the weight of counterweight liquid of described the first liquid reserve tank (20) and described the second liquid reserve tank (30);
Control device, described control device is connected with described measurement mechanism and described pumping installations communication respectively, and described control device receives the weight information of the counterweight liquid that described measurement mechanism measures and according to pumping installations described in described weight information control.
3. counterweight adjusting device according to claim 2, it is characterized in that, described hydraulic pump (10) is two-way variable displacement pump, and described hydraulic pump (10) is arranged on the fluid pressure line that connects described the first liquid reserve tank (20) and described the second liquid reserve tank (30), and under the control of described control device, described pumping installations can be sent into the counterweight liquid pump in described the first liquid reserve tank (20) described the second liquid reserve tank (30) or the counterweight liquid pump in described the second liquid reserve tank (30) be sent into described the first liquid reserve tank (20).
4. counterweight adjusting device according to claim 3, it is characterized in that, described pumping installations also comprises drive unit (70), described drive unit (70) drives and is connected with described hydraulic pump (10), described control device (60) is connected with described drive unit (70) and described hydraulic pump (10) communication respectively, and described control device (60) is by pumping installations described in the stroking mechanism control of the described drive unit of control (70) and described hydraulic pump (10).
5. according to the counterweight adjusting device described in any one in claim 2 to 4, it is characterized in that, in described the first liquid reserve tank (20) and described the second liquid reserve tank (30) one is arranged on the front portion of the body of described engineering machinery, and another in described the first liquid reserve tank (20) and described the second liquid reserve tank (30) is arranged on the rear portion of described body.
6. counterweight adjusting device according to claim 5, is characterized in that,
The number of described the first liquid reserve tank (20) is multiple, and described multiple the first liquid reserve tanks (20) are in parallel and be symmetrically arranged on the rear portion of described body; And/or,
The number of described the second liquid reserve tank (30) is multiple, and described multiple the second liquid reserve tanks (30) are in parallel and be symmetrically arranged on the front portion of described body.
7. counterweight adjusting device according to claim 6, it is characterized in that, described counterweight adjusting device also comprises control valve group, described control valve group is arranged between described hydraulic pump (10) and described the first liquid reserve tank (20) and/or between described hydraulic pump (10) and described the second liquid reserve tank (30), described control device is also connected with the communication of described control valve group, when the number of described the first liquid reserve tank (20) is while being multiple, regulate the distribution of weight of the counterweight liquid between described multiple the first liquid reserve tanks (20) by controlling described pumping installations and described control valve group, and when the quantity of described the second liquid reserve tank (30) is while being multiple, regulate the distribution of weight of the counterweight liquid between described multiple the second liquid reserve tanks (30) by controlling described pumping installations and described control valve group.
8. counterweight adjusting device according to claim 7, it is characterized in that, described hydraulic pump (10) is two-way variable displacement pump, the number of described the first liquid reserve tank (20) is one, the number of described the second liquid reserve tank (30) is multiple, described control valve group comprises and described multiple the second liquid reserve tanks (30) multiple control valves (40) one to one, described control device is connected with the control end (43) of each described control valve (40) respectively, described control valve (40) comprises the first hydraulic fluid port (41) and the second hydraulic fluid port (42), wherein, described first hydraulic fluid port (41) of each described control valve (40) is all connected with the first actuator port of described hydraulic pump (10), and described second hydraulic fluid port (42) of each described control valve (40) is connected with corresponding described the second liquid reserve tank (30) respectively, described the first liquid reserve tank (20) is connected with the second actuator port of described hydraulic pump (10).
9. counterweight adjusting device according to claim 8, is characterized in that,
Described measurement mechanism comprises multiple liquid level sensors (50), and it is upper that described multiple liquid level sensor (50) is arranged on described multiple the second liquid reserve tanks (30) correspondingly, for detection of the liquid level in each the second liquid reserve tank (30);
Described control device (60) is connected with each described liquid level sensor (50) communication respectively, described control device (60) receives described in each that described multiple liquid level sensor (50) detects the liquid level information of the second liquid reserve tank (30) as described weight information, and according to liquid level information described in each, liquid communication port of each described control valve (40) is regulated.
10. counterweight adjusting device according to claim 1, it is characterized in that, in described the first liquid reserve tank (20) and described the second liquid reserve tank (30), at least one is the casing of sealing, and on the casing of described sealing, is provided with breather valve (31).
11. 1 kinds of engineering machinery, comprise counterweight adjusting device, it is characterized in that, described counterweight adjusting device is the counterweight adjusting device described in any one in claim 1 to 10.
12. engineering machinery according to claim 11, it is characterized in that, described engineering machinery is paver, and described the first liquid reserve tank (20) is arranged at the rear portion of the body of described paver, and described the second liquid reserve tank (30) is arranged at the front portion of the body of described paver.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410373414.9A CN104099855B (en) | 2014-07-31 | 2014-07-31 | A counter weight adjusting device and engineering machine tool for engineering machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410373414.9A CN104099855B (en) | 2014-07-31 | 2014-07-31 | A counter weight adjusting device and engineering machine tool for engineering machine tool |
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| Publication Number | Publication Date |
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| CN104099855A true CN104099855A (en) | 2014-10-15 |
| CN104099855B CN104099855B (en) | 2016-02-10 |
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| CN201410373414.9A Active CN104099855B (en) | 2014-07-31 | 2014-07-31 | A counter weight adjusting device and engineering machine tool for engineering machine tool |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108189889A (en) * | 2017-12-06 | 2018-06-22 | 常州杰轩纺织科技有限公司 | A kind of loaded device of climbing upstairs and its application process |
| CN112144878A (en) * | 2019-06-28 | 2020-12-29 | 河北雷萨重型工程机械有限责任公司 | Pump truck |
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| CN1987124A (en) * | 2006-12-14 | 2007-06-27 | 浙江大学 | Energy saving hydraulic lifting system of variable hydraulic counterweight |
| CN101704483A (en) * | 2009-11-27 | 2010-05-12 | 三一汽车制造有限公司 | Crane working condition recognition system, crane control system and crane |
| CN201942450U (en) * | 2010-11-16 | 2011-08-24 | 云南建工第五建设有限公司 | Automatic crane balance controller |
| CN102562941A (en) * | 2012-02-21 | 2012-07-11 | 中联重科股份有限公司 | Engineering machine and counterweight adjusting device thereof |
| CN103587594A (en) * | 2013-11-21 | 2014-02-19 | 广西大学 | Counter-weight adjusting type rollover-prevention device of semi-trailer |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US5609260A (en) * | 1996-02-05 | 1997-03-11 | Liao; Fu-Chang | Derrick structure |
| CN1987124A (en) * | 2006-12-14 | 2007-06-27 | 浙江大学 | Energy saving hydraulic lifting system of variable hydraulic counterweight |
| CN101704483A (en) * | 2009-11-27 | 2010-05-12 | 三一汽车制造有限公司 | Crane working condition recognition system, crane control system and crane |
| CN201942450U (en) * | 2010-11-16 | 2011-08-24 | 云南建工第五建设有限公司 | Automatic crane balance controller |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108189889A (en) * | 2017-12-06 | 2018-06-22 | 常州杰轩纺织科技有限公司 | A kind of loaded device of climbing upstairs and its application process |
| CN112144878A (en) * | 2019-06-28 | 2020-12-29 | 河北雷萨重型工程机械有限责任公司 | Pump truck |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104099855B (en) | 2016-02-10 |
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