CN104539133A - Magnetic connection structure, power control device, system and method and engineering machine - Google Patents
Magnetic connection structure, power control device, system and method and engineering machine Download PDFInfo
- Publication number
- CN104539133A CN104539133A CN201410795142.1A CN201410795142A CN104539133A CN 104539133 A CN104539133 A CN 104539133A CN 201410795142 A CN201410795142 A CN 201410795142A CN 104539133 A CN104539133 A CN 104539133A
- Authority
- CN
- China
- Prior art keywords
- power
- engine
- hydraulic pump
- magnetic
- magnetic devices
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
The invention discloses a magnetic connection structure, a power control device, system and method and an engineering machine. The device comprises a receiving device and a control device, the receiving device is used for receiving the actual rotation speed of an engine, and the control device is used for adjusting the speed ratio of an input shaft of a hydraulic pump and an output shaft of the engine through the magnetic connection structure according to the actual rotation speed of the engine so as to adjust the output power of the hydraulic pump. The engine is a power output component, and the hydraulic pump is a power absorption component. According to the magnetic connection structure, the power control device, system and method and the engineering machine, the speed ratio of the input shaft of the hydraulic pump and the output shaft of the engine is adjusted through the magnetic connection structure according to the actual rotation speed of the engine so that the output power of the hydraulic pump can be adjusted, the requirement for the coaxiality of the engine and the hydraulic pump is low according to the technical scheme, centralization errors and angle errors are allowed to a great extent, the output power of the hydraulic pump can be adjusted when an execution mechanism does not work, and therefore the good energy conversation effect can be achieved.
Description
Technical field
The present invention relates to power control techniques, particularly, relate to magnetic connecting structure, power control apparatus, system, method and engineering machinery.
Background technology
Non-electrical control hydraulic pump is adopted in a large number in engineering machinery, the engine of current engineering machinery is connected with being contacted by shaft coupling between hydraulic pump, it is very high that this mode makes hydraulic pump and engine require its axiality when mounted, and mesh power is unadjustable.For this non-electrical control hydraulic pump, main based on power limitation control in the course of the work at present, non-electrical control hydraulic pump P-Q curve can only carry out discharge capacity adjustment along identical power curve.In addition, hydraulic pump still operates with engine synchronization in an unloaded situation, and thus power loss is larger.
In sum, there is following shortcoming in prior art: the connection coaxiality 1, between engine and hydraulic pump requires high; 2, in the idle situation of actuator, energy loss is large; 3, when hydraulic pump and Engine Matching, mesh power can not regulate.
Summary of the invention
The object of this invention is to provide magnetic connecting structure, power control apparatus, system, method and engineering machinery, for solving the power output being carried out regulator solution press pump by the speed ratio changed between hydraulic pump and engine.
To achieve these goals, the invention provides a kind of magnetic connecting structure, this magnetic connecting structure comprises: the first magnetic devices, is connected with the external rotor of power output element; Second magnetic devices, is connected with the internal rotor of power absorption element, and correspondingly with described first magnetic devices arranges; Wherein, the external rotor action of described power output element drives the first magnetic devices action, this the first magnetic devices action drives the second magnetic devices action, thus drive the internal rotor action of described power absorption element, the speed ratio of described power output element and described power absorption element is wherein adjusted by the relative position adjusted between described first magnetic devices and the second magnetic devices.
Present invention also offers a kind of hydraulic pump power control apparatus, this equipment comprises: receiving system, for receiving the actual speed of engine; Control device, for the speed ratio coming between regulator solution press pump power shaft and engine output shaft by above-described magnetic connecting structure according to the actual speed of described engine, to adjust the power output of described hydraulic pump; Wherein, described engine is power output element, and described hydraulic pump is power absorption element.
Correspondingly, present invention also offers a kind of hydraulic pump power control system, this system comprises: above-described hydraulic pump power control apparatus; And speed probe, for detecting the actual speed of engine.
Correspondingly, present invention also offers a kind of engineering machinery, comprise above-described hydraulic pump power control system.
Correspondingly, present invention also offers a kind of hydraulic pump Poewr control method, the method comprises: the actual speed receiving engine; According to the speed ratio that the actual speed of described engine is come between regulator solution press pump power shaft and engine output shaft by magnetic connecting structure, to adjust the power output of described hydraulic pump; Wherein, described engine is power output element, and described hydraulic pump is power absorption element.
Pass through technique scheme, the speed ratio of the present invention by coming between regulator solution press pump power shaft and engine output shaft according to the actual speed of engine by magnetic connecting structure, thus the power output of regulator solution press pump, this technical scheme requires very low to the axiality between engine and hydraulic pump, allow the larger error of centralization and angular error, in the idle situation of actuator, can the power output of regulator solution press pump, thus reach good energy-saving effect.
Other features and advantages of the present invention are described in detail in embodiment part subsequently.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and forms a part for specification, is used from explanation the present invention, but is not construed as limiting the invention with embodiment one below.In the accompanying drawings:
Fig. 1 is the connection diagram of power output element provided by the invention and magnetic devices;
Fig. 2 is the connection diagram of power absorption element provided by the invention and magnetic devices, and (a) wherein in Fig. 2 is the compacted situation of thrust spring, and (b) in Fig. 2 is the not compacted situation of thrust spring;
Fig. 3 is the block diagram of hydraulic pump power control apparatus provided by the invention;
Fig. 4 is the block diagram of hydraulic pump power control system provided by the invention;
Fig. 5 is the structure chart of the hydraulic pump power control system that the specific embodiment of the invention provides; And
Fig. 6 is the block diagram of hydraulic pump Poewr control method provided by the invention.
Description of reference numerals
1 power output element, engine 2 output shaft
External rotor 4 first magnetic devices of 3 power output elements, copper ring
Housing 6 terminal pad of 5 power absorption elements
Internal rotor 8 second magnetic devices of 7 power absorption elements, magnet ring
9 thrust collar 10 thrust springs
11 cylinder barrel 12 plungers
The power shaft of 13 retaining mechanism 14 power absorption elements
15 hydraulic pump 16 pioneer pumps
17 invariable power adjuster 100 hydraulic pump power control apparatus
1001 receiving system 1002 control device
200 speed probe 300 electronically controlled proportional valves
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.Should be understood that, embodiment described herein, only for instruction and explanation of the present invention, is not limited to the present invention.
The invention provides a kind of magnetic connecting structure, this magnetic connecting structure comprises the first magnetic devices and the second magnetic devices.This first magnetic devices is connected with the external rotor of power output element, this second magnetic devices is connected with the internal rotor of power absorption element, and this second magnetic devices is corresponding with the first magnetic devices to be arranged, wherein, the external rotor action of power output element drives the first magnetic devices action, first magnetic devices action drives the second magnetic devices action, thus drive the internal rotor action of power absorption element, the speed ratio of motivation of adjustment output element and power absorption element is wherein carried out by the relative position adjusted between the first magnetic devices and the second magnetic devices.
As everyone knows, magnetic devices is the magnetic device of tool, degree of coupling between two magnetic devices is higher, therebetween magnetic force is larger, the speed ratio of power output element and power absorption element is larger, otherwise the degree of coupling between two magnetic devices is lower, therebetween magnetic force is less, and the speed ratio of power output element and power absorption element is less.Thus, the speed ratio of motivation of adjustment output element and power absorption element can be carried out by the degree of coupling adjusted between two magnetic devices.In order to reach this object, need the external rotor of the first magnetic devices and power output element to fix, the internal rotor of the second magnetic devices and power absorption element is fixed.
Power output element has an output shaft, and external rotor is fixedly connected with this output shaft, thus external rotor can be driven to rotate by the rotation of output shaft.Power absorption element has a power shaft, and internal rotor is fixedly connected with this power shaft, thus can be rotated by the rotating band driven input shaft of internal rotor.When the output shaft rotation of power output element, drive external rotor rotates, under the magneticaction of the first magnetic devices and the second magnetic devices, the external rotor of power output element drives the internal rotor of power absorption element to rotate, thus drives the power shaft of power absorption element to rotate.The position that thus can intercouple at the internal rotor of the external rotor of power output element and power absorption element arranges magnetic devices.Such as, the first magnetic devices is set in the external rotor end of power output element, the second magnetic devices is set in the internal rotor end of power absorption element.Wherein, the becket that the first magnetic devices can be formed for the metal with magnetic conductivity, the present invention is described for copper ring, and this first magnetic devices annular is arranged on the external rotor end of power output element.Second magnetic devices can be magnet ring, with the copper ring annular internal rotor end being arranged on power absorption element accordingly.When power output element rotates, the external rotor of this power output element rotates thereupon, copper ring produces induced current because cutting the magnetic line of force of magnet ring, faradic induced field and the magnetic field interaction of magnet ring and make the internal rotor of power absorption element carry out the rotation corresponding with power output element.Certainly, the present invention is not limited thereto, the first magnetic devices can be magnet ring, and the second magnetic devices also can belong to protection scope of the present invention for copper ring.It should be noted that, of the present invention all can for copper ring with the first magnetic devices, the second magnetic devices can be that example is described for magnet ring.
Fig. 1 is the connection diagram of power output element provided by the invention and magnetic devices, as shown in Figure 1, power output element 1 has output shaft 2 and external rotor 3, external rotor 3 is fixedly connected with output shaft 2, copper ring 4 (i.e. the first magnetic devices) annular is arranged on the end of the external rotor 3 of power output element 1, and copper ring 4 is fixedly connected with external rotor 3.In addition, the housing of the external rotor 3 of power output element 1 and power absorption element 5 (housing 5 is the higher material of resistivity) is coupled, and power output element 1 is fixed by terminal pad 6 with the housing 5 of power absorption element.
Fig. 2 is the connection diagram of power absorption element provided by the invention and magnetic devices, and (a) wherein in Fig. 2 is the compacted situation of thrust spring, and (b) in Fig. 2 is the not compacted situation of thrust spring.As shown in Figure 2, power absorption element (not shown in Fig. 2) has power shaft 14 and internal rotor 7, internal rotor 7 is fixedly connected with power shaft 14, and magnet ring 8 annular is arranged on the end of internal rotor 7, and magnet ring 8 is fixedly connected with the internal rotor 7 of power absorption element.
As shown in Figure 2, magnetic connecting structure provided by the invention also comprises thrust collar 9 and thrust spring 10.Outside thrust collar 9, there is spline, this thrust collar 9 and the spline inside the housing 5 of power absorption element are of coupled connections the (spline engagement inside the housing 5 of the spline outside thrust collar 9 and absorber element, because the housing 5 of power absorption element is immovable, so can ensure that thrust collar 9 only moves radially along the power shaft 14 of power absorption element, and can not rotate), thrust spring 10 elasticity connects thrust collar 9.Wherein, (namely the spline of the spline of internal rotor 7 endoporus of power absorption element and power shaft 14 end of power absorption element is coupled, power shaft 14 end and internal rotor 7 endoporus of power absorption element have the external splines of identical modulus), make the internal rotor 7 of power absorption element that the power shaft 14 of power absorption element can be driven to rotate and can radially move along the spline of power shaft 14 (mask engaged with power absorption element internal rotor 7 of thrust collar 9 has certain resistance to wear).The flexible of thrust spring 10 can make thrust collar 9 drive the internal rotor 7 of power absorption element to carry out radial motion, thus the relative position between adjustment the first magnetic devices 4 and the second magnetic devices 8, this second magnetic devices 8 is positioned at internal rotor 7 outer rim of power absorption element, and what in fact adjust here is relative position between copper ring 4 and magnet ring 8.
Magnetic connecting structure provided by the invention also comprises actuated element, is driven the radial motion of the internal rotor 7 of the power shaft 14 of power absorption element by this actuated element, thus drives the flexible of thrust spring 10.As shown in Figure 2, this actuated element can be hydraulic jack, specifically comprises cylinder barrel 11 and plunger 12.Specifically, when needing to change the relative position between copper ring 4 and magnet ring 8, can make that thrust spring 10 is stressed to change by changing the hydraulic fluid pressure inputing to cylinder barrel 11, make the internal rotor 7 of power absorption element do radial motion, thus change the relative position between copper ring 4 and magnet ring 8.As shown in Figure 2, by retaining mechanism 13, the housing 5 of cylinder barrel 11 with power absorption element can be fixed.
Fig. 3 is the block diagram of hydraulic pump power control apparatus 100 provided by the invention, and as shown in Figure 3, this equipment 100 comprises receiving system 1001 and control device 1002.Receiving system 1001 is for receiving the actual speed of engine, the speed ratio of control device 1002 for coming between regulator solution press pump power shaft and engine output shaft according to the actual speed of engine by magnetic connecting structure described above, to adjust the power output of hydraulic pump, engine as described herein is power output element, and hydraulic pump is power absorption element.Known by the magnetic connecting structure described by above composition graphs 1 and Fig. 2, can by the speed ratio regulating the relative position between the first magnetic element and the second magnetic element to come between regulator solution press pump power shaft and engine output shaft.
When engine gears is constant, the rotating speed of engine reflects the size of hydraulic pump power output, specifically, when engine operation in engine governed speed curve regions, if the actual speed of engine comparatively desired speed is high, then illustrate that hydraulic pump power output is too little, namely hydraulic pump can not absorb engine power completely, otherwise, comparatively desired speed is too low for the actual speed of engine, then illustrate that hydraulic pump power output is too large, desired speed is here determined when setting engine gears.Thus can following control be carried out: when the actual speed of engine is less than desired speed, control device 1002 controls to reduce the speed ratio between hydraulic pump power shaft and engine output shaft, when the actual speed of engine is greater than reservation rotating speed, control device 1002 controls to increase the speed ratio between hydraulic pump power shaft and engine output shaft.
For the speed ratio reduced between hydraulic pump power shaft and engine output shaft, can make that thrust spring 10 is stressed to diminish to promote thrust collar 9 and drive hydraulic pump internal rotor to move right (shown in Fig. 2) by reducing the pressure that input to hydraulic oil in cylinder barrel 11, overlapping area between copper ring 4 and magnet ring 8 is diminished, magnetic force between such copper ring 4 and magnet ring 8 diminishes, speed ratio between hydraulic pump power shaft and engine output shaft also diminishes thereupon, thus reduces the power output of hydraulic pump.
For the speed ratio increased between hydraulic pump power shaft and engine output shaft, plunger 12 can be made to promote hydraulic pump internal rotor by the pressure increasing the hydraulic oil inputed in cylinder barrel 11 is moved to the left (shown in Fig. 2, the now stressed change of thrust spring 10 is large), the overlapping area between copper ring 4 and magnet ring 8 is made to become large, magnetic force between such copper ring 4 and magnet ring 8 becomes large, speed ratio between hydraulic pump power shaft and engine output shaft also becomes greatly thereupon, thus increases the power output of hydraulic pump.
The reasonability of control method of the present invention is described below by formula (1).
In above formula (1), P
bfor the power output of hydraulic pump, q is hydraulic pump discharge, and P is hydraulic pump outlet pressure, and n is the speed ratio of engine speed, i hydraulic pump and engine, and η is hydraulic system gross efficiency.Formula (1) is equation well known to those skilled in the art, can be found out by this formula (1), can be carried out the power output of hydraulic control pump by the speed of regulator solution press pump and engine than i.
Fig. 4 is the block diagram of hydraulic pump power control system provided by the invention, and as shown in Figure 4, this system not only comprises the hydraulic pump power control apparatus 100 shown in Fig. 3, also comprises speed probe 200, and this speed probe 200 is for detecting the actual speed of engine.
In addition, as shown in Figure 4, system provided by the invention also comprises electronically controlled proportional valve 300, is connected with control device 1002 and magnetic connecting structure, and control device 1002 can carry out the speed ratio between regulator solution press pump power shaft and engine output shaft by the input current controlling this electronically controlled proportional valve 300.Specifically, the hydraulic oil delivery outlet of this electronically controlled proportional valve 300 is communicated with cylinder barrel 11, by the pressure regulating the input current of electronically controlled proportional valve 300 can regulate the hydraulic oil inputed in cylinder barrel 11, thus realize regulating the speed ratio between press pump power shaft and engine output shaft.When needing to increase the overlapping area between copper ring 4 and magnet ring 8, control device 1002 increases the input current of this electronically controlled proportional valve 300, this makes the pressure increase of the hydraulic oil being exported to the cylinder barrel 11 in magnetic connecting structure by this electronically controlled proportional valve 300, the internal rotor making plunger 12 promote hydraulic pump is moved to the left (Figure 2 shows that example, the now stressed change of thrust spring 10 is large), thus the overlapping area increased between copper ring 4 and magnet ring 8, thus increase the speed ratio between hydraulic pump power shaft and engine output shaft.Otherwise, when needing to reduce the overlapping area between copper ring 4 and magnet ring 8, control device 1002 reduces the input current of this electronically controlled proportional valve 300, this makes the pressure being exported to the hydraulic oil of the cylinder barrel 11 in magnetic connecting structure by this electronically controlled proportional valve 300 reduce, thus make that thrust spring 10 is stressed to diminish, the internal rotor of hydraulic pump moves right (Figure 2 shows that example), thus the overlapping area reduced between copper ring 4 and magnet ring 8, thus reduce the speed ratio between hydraulic pump power shaft and engine output shaft.
In addition, hydraulic pump power control system provided by the invention also comprises invariable power adjuster (not shown in Fig. 4), control device 1002 when the outlet pressure of hydraulic pump be greater than preset play pressure regulation power, control to reduce hydraulic pressure pump delivery.When employing two hydraulic pumps work simultaneously, outlet pressure is here the outlet pressure sum of two hydraulic pumps.It should be noted that, here invariable power adjuster is the regulative mode of regulator solution press pump power output in prior art, and the power adjustments mode of invariable power regulative mode of the prior art and employing magnetic connecting structure provided by the invention can combine and use by the present invention.Also can not adopt invariable power regulative mode, and only adopt the power output of magnetic connecting structure to hydraulic pump to regulate.Generally, when hydraulic pump 15 is variable pump, adopt invariable power to regulate the mode jointly regulated with magnetic connecting structure, when hydraulic pump 15 is constant displacement pump, adopt the mode that only magnetic connecting structure regulates.
Fig. 5 is the structure chart of the hydraulic pump power control system that the specific embodiment of the invention provides, and in Figure 5, power output element 1 is engine 1, and power absorption element is hydraulic pump 15, and pilot pressure is provided by pioneer pump 16.
After engine 1 starts, safety lock is in the lock state (this safety lock is in order to prevent from setting because of error starting electronically controlled proportional valve 300), now the K switch of electronically controlled proportional valve 300 disconnects, electronically controlled proportional valve 300 is in off-position, thus the hydraulic fluid pressure entering cylinder barrel 11 minimum (this situation is as Suo Shi (b) in Fig. 2), now the power loss of hydraulic pump is also minimum, thus can realize energy-conservation effect.
When electronically controlled proportional valve 300 works, K switch is connected, and this timed unit 1002 can by the pressure regulating the input current of electronically controlled proportional valve 300 to regulate the hydraulic oil entering cylinder barrel 11.Situation shown in Fig. 5 is the compacted situation of thrust spring 10, and in this case, copper ring 4 is maximum with the overlapping area of magnet ring 5, and the speed ratio between the power shaft 6 of hydraulic pump 15 and the output shaft 2 of engine 1 is maximum.Embodiment shown in Fig. 5 is the mode of the two main pumps that have employed two hydraulic pumps 15, also can adopt the mode of single main pump of a hydraulic pump 15, and its implementation is similar with the mode of the two main pump of employing.
Principle for the discharge capacity being carried out regulator solution press pump 15 by invariable power adjuster 17 is regulative mode conventional in prior art, and in this, it will not go into details.
Correspondingly, present invention also offers a kind of engineering machinery, comprise hydraulic pump power control system described above.
Fig. 6 is the block diagram of hydraulic pump Poewr control method provided by the invention, and as shown in Figure 6, the method comprises: the actual speed receiving engine; According to the speed ratio that the actual speed of engine is come between regulator solution press pump power shaft and engine output shaft by magnetic connecting structure, to adjust the power output of described hydraulic pump; Wherein, engine is power output element, and hydraulic pump is power absorption element.
It should be noted that, the detail of hydraulic pump Poewr control method provided by the invention and benefit and hydraulic pump power control apparatus provided by the invention similar, in this, it will not go into details.
Below the preferred embodiment of the present invention is described in detail by reference to the accompanying drawings; but; the present invention is not limited to the detail in above-mentioned execution mode; within the scope of technical conceive of the present invention; can carry out multiple simple variant to technical scheme of the present invention, these simple variant all belong to protection scope of the present invention.
In technical scheme of the present invention, between engine output shaft with hydraulic pump power shaft, adopt magnetic to be connected, vibration and noise can be reduced well, and it also avoid the error of centralization and angular error.Engine output shaft and the noncontact of hydraulic pump power shaft, thus without the need to sealing, achieve zero leakage simultaneously, because engine output shaft and hydraulic pump power shaft are non-rigid connection, thus avoid the damage of hydraulic pump shaft coupling, reduce potential safety hazard, maintenance cost is low, and easy for installation, adapt to work under severe operating mode.
In addition, by technical scheme provided by the invention, can prevent engine overload and engine improper fall speed, the useful life of each parts in drive system can be extended, and by the adjustment to hydraulic pump internal rotor, not only can reach the requirement of required moment of torsion transmission and speed transmission, and power matching can be made reasonable.
It should be noted that in addition, each the concrete technical characteristic described in above-mentioned embodiment, in reconcilable situation, can be combined by any suitable mode.In order to avoid unnecessary repetition, the present invention illustrates no longer separately to various possible compound mode.
In addition, also can carry out combination in any between various different execution mode of the present invention, as long as it is without prejudice to thought of the present invention, it should be considered as content disclosed in this invention equally.
Claims (12)
1. a magnetic connecting structure, is characterized in that, this magnetic connecting structure comprises:
First magnetic devices, is connected with the external rotor of power output element;
Second magnetic devices, is connected with the internal rotor of power absorption element, and correspondingly with described first magnetic devices arranges;
Wherein, the external rotor action of described power output element drives the first magnetic devices action, this the first magnetic devices action drives the second magnetic devices action, thus drive the internal rotor action of described power absorption element, the speed ratio of described power output element and described power absorption element is wherein adjusted by the relative position adjusted between described first magnetic devices and the second magnetic devices.
2. magnetic connecting structure according to claim 1, is characterized in that, wherein,
Described first magnetic devices is the becket that the metal with magnetic conductivity is formed, and annular is arranged on the external rotor end of described power output element; And
Described second magnetic devices is magnet ring, with the described first magnetic devices annular internal rotor end being arranged on described power absorption element accordingly.
3. magnetic connecting structure according to claim 2, is characterized in that, this magnetic connecting structure also comprises:
Thrust collar, outside has spline, and the spline of the case inside of this thrust collar and described power absorption element is of coupled connections;
Thrust spring, elasticity connects described thrust collar;
Wherein, the spline of the spline of the internal rotor endoporus of described power absorption element and the power shaft end of described power absorption element is coupled, the flexible of described thrust spring makes described thrust collar drive the internal rotor of described power absorption element to carry out radial motion, thus the relative position adjusted between described first magnetic devices and the second magnetic devices, described second magnetic devices is positioned at the internal rotor cylindrical of described power absorption element.
4. magnetic connecting structure according to claim 3, is characterized in that, this magnetic connecting structure comprises:
Actuated element, is driven the radial motion of the internal rotor of described power absorption element thus drives the flexible of described thrust spring by this actuated element.
5. a hydraulic pump power control apparatus, is characterized in that, this equipment comprises:
Receiving system, for receiving the actual speed of engine;
Control device, for the speed ratio coming between regulator solution press pump power shaft and engine output shaft by the magnetic connecting structure any one of claim 1-4 as described in claim according to the actual speed of described engine, to adjust the power output of described hydraulic pump;
Wherein, described engine is power output element, and described hydraulic pump is power absorption element.
6. equipment according to claim 5, is characterized in that, comprises according to the speed ratio between the actual speed regulator solution press pump power shaft of described engine and engine output shaft:
When the actual speed of described engine is less than desired speed, described control device controls to reduce the speed ratio between described hydraulic pump power shaft and engine output shaft; And
When the actual speed of described engine is greater than desired speed, described control device controls to increase the speed ratio between described hydraulic pump power shaft and engine output shaft.
7. a hydraulic pump power control system, is characterized in that, this system comprises:
Hydraulic pump power control apparatus any one of claim 5-6 described in claim; And
Speed probe, for detecting the actual speed of engine.
8. system according to claim 7, is characterized in that, this system also comprises:
Electronically controlled proportional valve, is connected with described control device and described magnetic connecting structure, and described control device carrys out the speed ratio between regulator solution press pump power shaft and engine output shaft by the input current controlling this electronically controlled proportional valve.
9. system according to claim 7, is characterized in that, this system also comprises:
Invariable power adjuster, described control device when the outlet pressure of described hydraulic pump be greater than preset rise pressure regulation power, control reduce described hydraulic pressure pump delivery.
10. an engineering machinery, is characterized in that, comprises the hydraulic pump power control system any one of claim 7-9 described in claim.
11. 1 kinds of hydraulic pump Poewr control methods, it is characterized in that, the method comprises:
Receive the actual speed of engine;
According to the speed ratio that the actual speed of described engine is come between regulator solution press pump power shaft and engine output shaft by magnetic connecting structure, to adjust the power output of described hydraulic pump;
Wherein, described engine is power output element, and described hydraulic pump is power absorption element.
12. methods according to claim 11, is characterized in that, comprise according to the speed ratio between the actual speed regulator solution press pump power shaft of described engine and engine output shaft:
When the actual speed of described engine is less than desired speed, control to reduce the speed ratio between described hydraulic pump power shaft and engine output shaft; And
When the actual speed of described engine is greater than desired speed, control to increase the speed ratio between described hydraulic pump power shaft and engine output shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410795142.1A CN104539133B (en) | 2014-12-18 | 2014-12-18 | Magnetic connecting structure, power control apparatus, system, method and engineering machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410795142.1A CN104539133B (en) | 2014-12-18 | 2014-12-18 | Magnetic connecting structure, power control apparatus, system, method and engineering machinery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104539133A true CN104539133A (en) | 2015-04-22 |
| CN104539133B CN104539133B (en) | 2017-01-04 |
Family
ID=52854621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410795142.1A Active CN104539133B (en) | 2014-12-18 | 2014-12-18 | Magnetic connecting structure, power control apparatus, system, method and engineering machinery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104539133B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110747929B (en) * | 2019-09-19 | 2022-03-04 | 山东临工工程机械有限公司 | Power and torque distribution control method for positive flow excavator |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5791426A (en) * | 1995-11-06 | 1998-08-11 | Toyota Jidosha Kabushiki Kaisha | Power output apparatus and method of controlling the same |
| CN202197206U (en) * | 2011-09-11 | 2012-04-18 | 余虹锦 | Novel conical inner rotor asynchronous permanent magnet coupling speed regulator of oblique magnetic field |
| CN103633813A (en) * | 2013-11-12 | 2014-03-12 | 江苏大学 | Split electromagnetic coupling clutch and electro-hydraulic steering system driven by split electromagnetic coupling clutch |
| CN204013180U (en) * | 2014-08-29 | 2014-12-10 | 宝鸡泰华磁机电技术研究所有限公司 | Cylindrical magnetic induction speed regulator |
-
2014
- 2014-12-18 CN CN201410795142.1A patent/CN104539133B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5791426A (en) * | 1995-11-06 | 1998-08-11 | Toyota Jidosha Kabushiki Kaisha | Power output apparatus and method of controlling the same |
| CN202197206U (en) * | 2011-09-11 | 2012-04-18 | 余虹锦 | Novel conical inner rotor asynchronous permanent magnet coupling speed regulator of oblique magnetic field |
| CN103633813A (en) * | 2013-11-12 | 2014-03-12 | 江苏大学 | Split electromagnetic coupling clutch and electro-hydraulic steering system driven by split electromagnetic coupling clutch |
| CN204013180U (en) * | 2014-08-29 | 2014-12-10 | 宝鸡泰华磁机电技术研究所有限公司 | Cylindrical magnetic induction speed regulator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104539133B (en) | 2017-01-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103790874B (en) | Valveless Hydrauservo System and controlling method thereof | |
| WO2010097596A1 (en) | Hydraulic actuator | |
| JP6196819B2 (en) | Hydraulic supply device, hydraulic system and method of using the same | |
| EP3273069A1 (en) | Smart load-sensitive electro-hydrostatic actuator | |
| JP6126268B2 (en) | Drive device for switching valve of internal combustion engine and internal combustion engine | |
| CN105443477A (en) | Hydraulic drive with rapid stroke and load stroke | |
| CN103836004A (en) | Water pump | |
| CN100491772C (en) | Double variable hydraulic driving device for hand servo control | |
| CN104539133A (en) | Magnetic connection structure, power control device, system and method and engineering machine | |
| UA119134C2 (en) | Rotary expansible chamber devices having adjustable working-fluid ports, and systems incorporating the same | |
| CN107664118A (en) | A kind of hydraulic planger pump of a variety of Variable Control functions of band | |
| CN101815888A (en) | The regulating device of the swept volume of hydraulic piston | |
| CN103089844A (en) | Electronic control overrunning clutch | |
| CN103291575B (en) | Electric proportional variable axial plunger pump | |
| KR101724738B1 (en) | Temperature sensitive two step relief valve for oil pump system | |
| CN104660007A (en) | Double-support permanent magnet eddy-current flexible transmission | |
| CN105065225A (en) | Electromagnetic type plunger pump device and control method | |
| CN205013223U (en) | Electromagnetic type plunger pump device | |
| CN102345653B (en) | Closed type hydraulic system and control method thereof | |
| US20110225962A1 (en) | Variable Speed Hydraulic Pump Apparatus and Method | |
| JP2015536429A (en) | Device for controlling the drive of a cooling device ventilator that can be driven by a fluid pressure motor | |
| CN1809697A (en) | Hydraulic circuit | |
| CN102477996A (en) | Pump | |
| CN202157951U (en) | Speed regulation type fluid coupling transmission case for slurry pump | |
| US20220042375A1 (en) | Hydraulic Drive in Front of a Drilling Apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211202 Address after: Room 4015, office building, 677 Lugu Avenue, Changsha hi tech Development Zone, Hunan 410000 Patentee after: Zoomlion earth moving machinery Co.,Ltd. Address before: 714000 west section of Chaoyang Street, high tech Zone, Weinan City, Shaanxi Province Patentee before: ZOOMLION HEAVY INDUSTRY SCIENCE&TECHNOLOGY DEVELOPMENT Co.,Ltd. WEINAN BRANCH Patentee before: Zoomlion Co., Ltd |
|
| TR01 | Transfer of patent right |