CN209586821U - Hydraulic moving control unit and hydraulic travel system - Google Patents
Hydraulic moving control unit and hydraulic travel system Download PDFInfo
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- CN209586821U CN209586821U CN201822048395.9U CN201822048395U CN209586821U CN 209586821 U CN209586821 U CN 209586821U CN 201822048395 U CN201822048395 U CN 201822048395U CN 209586821 U CN209586821 U CN 209586821U
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- 239000012530 fluid Substances 0.000 claims abstract description 260
- 239000007788 liquid Substances 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 5
- 239000003921 oil Substances 0.000 description 37
- 230000009184 walking Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 5
- 230000002457 bidirectional effect Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000003628 erosive effect Effects 0.000 description 4
- 230000007717 exclusion Effects 0.000 description 4
- 239000010720 hydraulic oil Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000009194 climbing Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002828 fuel tank Substances 0.000 description 2
- 230000020169 heat generation Effects 0.000 description 2
- 239000010705 motor oil Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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Abstract
The utility model embodiment discloses a kind of hydraulic moving control unit, comprising: directional control valve, the third hydraulic fluid port of the directional control valve is for connecting pressure oil-source mouth, and the first hydraulic fluid port of the directional control valve is for connecting reservoir port；The outlet of first check valve, first check valve is connected to the third hydraulic fluid port of the directional control valve；And second one-way valve, the entrance of the second one-way valve are connected to the first hydraulic fluid port of the directional control valve, the outlet of the second one-way valve is connected to the entrance of first check valve；Wherein, the outlet of the second hydraulic fluid port and the 4th hydraulic fluid port, the entrance of first check valve and the second one-way valve of the directional control valve is used to connect the hydraulic fluid port of multiple motors.The utility model embodiment also discloses a kind of hydraulic travel system using above-mentioned hydraulic moving control unit.The service life of Hydraulic Elements and the reliability of hydraulic system can be improved in hydraulic moving control unit provided by the embodiment of the utility model.
Description
Technical field
The utility model relates to hydraulic moving control technology field more particularly to a kind of hydraulic moving control units and one kind
Hydraulic travel system.
Background technique
Hydraulic traveling system is a kind of common driving method of mobile engineering machinery.The walking arrangement of bilateral motor driving,
Frequently with the concatenated control loop of motor.Although the control loop cannot play the driving capability of motor (for parallel drive torque
Half), but because it is the most single system for realizing straight-line travelling in single oil supply system, loop element is few, high reliablity, cost
It is low, and become a kind of scheme of high performance-price ratio.Using for example self-propelled high-altitude of the walking arrangement of motor tandem hydraulic driving circuit
Operation Van, in turning walking process, outside wheel speed is higher than inside wheel speed；And two motors in hydraulic drive circuit are series connection
, theoretically two motor rotary speeds are equal, therefore this contradiction make when the preceding motor be in outside, after motor be in inside
When, since outside motor rotary speed is higher than inside motor, it just will appear motor series connection connection chamber and occur building the pressure phenomenon (that is, motor
The intracavitary pressure of connection of connecting is higher than input pressure), while can occur rolling sliding situation in side under nearside wheel impacting with high pressure, from
And increase the abrasion of wheel.When the preceding motor is in inside, rear motor is in outside, before the actual speed of rear motor is higher than
Motor, rear motor lead to motor series connection connection are intracavitary to will appear emptying phenomenon, so that in entire hydraulic travel system for shortage of oil
Hydraulic Elements occur cavitation erosion damage.This not only shortens the service life of Hydraulic Elements, and has seriously affected hydraulic travel system
Reliability.
Utility model content
It is to overcome the shortcomings of existing technologies and insufficient, the utility model embodiment provide a kind of hydraulic moving control unit and
A kind of hydraulic travel system, to improve the service life of Hydraulic Elements and the reliability of hydraulic travel system.
On the one hand, the utility model embodiment provides a kind of hydraulic moving control unit, comprising: directional control valve, institute
The third hydraulic fluid port of directional control valve is stated for connecting pressure oil-source mouth, the first hydraulic fluid port of the directional control valve is for connecting fuel tank
Mouthful；The outlet of first check valve, first check valve is connected to the third hydraulic fluid port of the directional control valve；And second is unidirectional
Valve, the entrance of the second one-way valve are connected to the first hydraulic fluid port of the directional control valve, the outlet of the second one-way valve with
The entrance of first check valve is connected to；Wherein, the second hydraulic fluid port of the directional control valve and the 4th hydraulic fluid port, described first unidirectional
The entrance of valve and the outlet of the second one-way valve are used to connect the hydraulic fluid port of multiple motors.
In one embodiment of the utility model, the hydraulic moving control unit further includes second direction control valve,
First serial communication mouth of the second direction control valve is connected to the outlet of the second one-way valve, the second direction control
First series connection of valve processed blocks hydraulic fluid port and connects second hydraulic fluid port of the directional control valve, and the of the second direction control valve
Two series connection block the 4th hydraulic fluid port that hydraulic fluid port connects the directional control valve；Second series connection of the second direction control valve connects
Port connects one of multiple hydraulic fluid ports of the multiple motor.
In one embodiment of the utility model, the hydraulic moving control unit further includes third check valve, described
The entrance of third check valve is connected to first hydraulic fluid port of the directional control valve, the outlet of the third check valve with it is described
The third hydraulic fluid port of directional control valve is connected to；Or the hydraulic moving control unit further includes that the 4th check valve and the 5th are single
To valve, the entrance of the 4th check valve, outlet respectively with first hydraulic fluid port of the directional control valve and second oil
Mouthful connection, the entrance of the 5th check valve, outlet respectively with first hydraulic fluid port of the directional control valve and the described 4th
Hydraulic fluid port connection.
In one embodiment of the utility model, the hydraulic moving control unit further includes counterbalance valve, the back pressure
First hydraulic fluid port of valve is connected to first hydraulic fluid port of the directional control valve, the second hydraulic fluid port and the fuel tank of the counterbalance valve
Mouth connection.
In one embodiment of the utility model, the hydraulic moving control unit further includes hydraulic brake valve, described
The first hydraulic fluid port and the second hydraulic fluid port of hydraulic brake valve respectively with second hydraulic fluid port of the directional control valve and it is described 4th oil
Mouth connection, third hydraulic fluid port, the 4th hydraulic fluid port of the hydraulic brake valve are respectively connected to two hydraulic fluid ports of the multiple motor.
In one embodiment of the utility model, the hydraulic brake valve further includes the 5th hydraulic fluid port, the 5th hydraulic fluid port
For being connected to outside control oil sources.
In one embodiment of the utility model, the hydraulic brake valve further includes the 6th hydraulic fluid port, the 6th hydraulic fluid port
It is connected to first hydraulic fluid port of the direction valve.
In one embodiment of the utility model, the hydraulic moving control unit further includes first throttle device and second
Flow controller, first throttle device both ends connect with first hydraulic fluid port of the hydraulic brake valve and the third hydraulic fluid port respectively
Logical, the second choke both ends are connected to second hydraulic fluid port of the hydraulic brake valve and the 4th hydraulic fluid port respectively；Or
Hydraulic moving control unit described in person further includes throttle valve, the throttle valve both ends respectively with the hydraulic brake valve described
Three hydraulic fluid ports are connected to the 4th hydraulic fluid port.
On the other hand, the utility model embodiment additionally provides a kind of hydraulic travel system, comprising: hydraulic moving control is single
Member, the hydraulic moving control unit are hydraulic moving control unit as the aforementioned；Steering and brak control unit；Multiple walkings
Motor；Brake；And turn to actuator；Wherein, the hydraulic moving control unit passes through the steering and control for brake list
The third hydraulic fluid port of the directional control valve is connected to by member with the pressure oil-source mouth, the hydraulic moving control unit it is more
A motor hydraulic fluid port connector is by second hydraulic fluid port of the directional control valve and the 4th hydraulic fluid port, first check valve
The outlet of the entrance and the second one-way valve is connected to the hydraulic fluid port of the multiple running motor；The steering and system
Dynamic control unit is also connected to the steering actuator and the hydraulic fluid port of the brake and is connected to the reservoir port.
In one embodiment of the utility model, the hydraulic travel system further include: selection control unit and second
Operating mode actuator, wherein the steering and brak control unit pass through the selection control unit and the pressure oil-source
Mouth connection, and the selection control unit is also connected to the hydraulic fluid port of the second operating mode actuator.
Above-mentioned technical proposal can have following one or more advantages: the hydraulic moving control of the utility model embodiment
The new control structure that unit and hydraulic travel system are formed by using directional control valve and two check valves is concatenated
Differential function is realized between two motors, and connection chamber suppresses asking for high pressure during solving the mobile device turning in tandem drive circuit
Topic, to protect running motor, improves the service life and Hydraulic System Reliability of running motor；Compared with prior art, this reality
Spill losses is not present with the technical solution that new embodiment provides, it is energy-efficient, reduce system heat generation；Meanwhile this is practical
New embodiment provide technical solution also solve tandem drive circuit mobile device turning or descending during connection chamber
Be emptied problem, reduce the risk that system element cavitates, be conducive to improve component life and system reliability.
Detailed description of the invention
It, below will be to required in embodiment description in order to illustrate more clearly of the technical solution of the utility model embodiment
The attached drawing used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the utility model
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the schematic diagram for the hydraulic moving control unit that an embodiment of the present invention provides；
Fig. 2 a to Fig. 2 e be Fig. 1 in hydraulic moving control unit in various forms of directional control valves 1 schematic diagram；
Fig. 3 is the further principles figure of the hydraulic moving control unit in Fig. 1；
Fig. 4 a to Fig. 4 l be Fig. 3 in hydraulic moving control unit in various forms of directional control valves 4 schematic diagram；
Fig. 5 is the further principles figure of the hydraulic moving control unit in Fig. 1；
Fig. 6 is the further principles figure of the hydraulic moving control unit in Fig. 1；
Fig. 7 is the further principles figure of the hydraulic moving control unit in Fig. 6；
Fig. 8 a to Fig. 8 d is the further principles figure of the hydraulic moving control unit in Fig. 1；
Fig. 9 a to Fig. 9 p is the schematic diagram of various forms of hydraulic brake valves in Fig. 8 a to Fig. 8 d；
Figure 10 a and Figure 10 b are the further principles figure of the hydraulic moving control unit in Fig. 8 a；
Figure 11 is the schematic diagram for the hydraulic travel system that another embodiment of the utility model provides；
Figure 12 is the further principles figure of the hydraulic travel system in Figure 11.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts
Every other embodiment obtained, fall within the protection scope of the utility model.
As shown in Figure 1, an embodiment of the present invention provides a kind of hydraulic moving control unit 100, set applied to movement
The hydraulic circuit of standby for example self-propelled high-altitude operation vehicle is realized with controlling concatenated multiple motors such as motor L1 and motor L2
The differential control of two motors L1 and L2.
Hydraulic moving control unit 100 includes directional control valve 1, check valve 2, check valve 3.
Directional control valve 1 is, for example, the control element to change liquid such as running of hydraulic power oil direction in pipeline.Herein
Directional control valve 1 be, for example, three position four-way directional control valve, form may be, for example, Electromagnetic Control, naturally it is also possible to be other shapes
Formula.As shown in Fig. 2 a to Fig. 2 e, according to the difference of Median Function, directional control valve 1 may be, for example, H-type 3-position 4-way electromagnetic switch
Valve (Fig. 2 a), Y type three-position four-way electromagnetic directional valve (Fig. 2 b), the H-type three-position four-way electromagnetic directional valve (Fig. 2 c) with throttling, belt segment
The Y type three-position four-way electromagnetic directional valve (Fig. 2 d) or M type three-position four-way electromagnetic directional valve (Fig. 2 e) of stream.
Check valve is also known as check-valves or non-return valve, and controllable liquid such as hydraulic oil is flowed to a direction, prevented also from
Hydraulic oil reverse flow.
As shown in Figure 1, the hydraulic fluid port P1.3 of directional control valve 1 is for connecting pressure oil-source mouth P to obtain from pressure oil-source mouth P
Obtain power.The hydraulic fluid port P1.1 of directional control valve 1 is for connecting reservoir port T.The outlet P2.2 of check valve 2 and directional control valve 1
Hydraulic fluid port P1.3 connection.The entrance P3.1 of check valve 3 is connected to the hydraulic fluid port P1.1 of directional control valve 1, the outlet P3.2 of check valve 3 with
The entrance P2.1 of check valve 2 is connected to.The hydraulic fluid port P1.2 and hydraulic fluid port P1.4 of directional control valve 1 be separately connected motor L1 hydraulic fluid port F1 and
The hydraulic fluid port B2 of motor L2；The hydraulic fluid port F2 of the hydraulic fluid port B1 and motor L2 of motor L1 be connected and with the entrance P2.1 of check valve 2 and
The outlet P3.2 of check valve 3 is connected.In this way, which the hydraulic fluid port F2 of the hydraulic fluid port B1 and motor L2 of motor L1 is connected to and constitutes motor string
Join connection chamber.So, when mobile device is turned, when motor L1 is in outside, then the oil of motor L1 output is greater than motor
The high pressure oil of the oil that L2 needs, connection chamber of connecting can be by check valve 2 to the hydraulic fluid port P1.3 draining of directional control valve 1, thus real
The differential of two motors L1, L2 are showed.When motor L1 is in inside, then the oil of motor L1 output is less than the oil that motor L2 needs,
Then the oil return of the hydraulic fluid port P1.1 of directional control valve 1 can be by check valve 3 to series connection connection chamber repairing, to realize two drivings
The differential of motor L1, L2.Series connection connection chamber suppresses asking for high pressure during this mobile device for solving tandem drive circuit is turned
Topic, to protect running motor, improves the service life and Hydraulic System Reliability of running motor.Compared with prior art, this reality
There is no spill losses, energy-efficient for the technical solution provided with new embodiment, reduce system heat generation.Meanwhile this is also solved
Determined tandem drive circuit mobile device turning or descending during connection chamber be emptied problem, reduce system element
The risk of cavitation erosion is conducive to improve component life and system reliability.
In addition, there was only a kind of motor-driven speed under conditions of oil sources flow is certain using the mobile device in tandem drive circuit
Degree.Although fast speed but driving force is lower, because the driving force of single-motor is only utilized in this case, mobile device
Climbing capacity is weaker, and road conditions adaptability is weaker.Therefore, as shown in figure 3, hydraulic moving control unit 100 preferably can also be into
One step includes directional control valve 4, outlet P3.2, the check valve 2 of the serial communication mouth P4.3 connection check valve 3 of directional control valve 4
Entrance 2.1 and motor L1 hydraulic fluid port B1, directional control valve 4 series connection block hydraulic fluid port P4.1 connection directional control valve 1 hydraulic fluid port
The hydraulic fluid port F1 of P1.2 and motor L1, directional control valve 4 series connection block hydraulic fluid port P4.2 connection directional control valve 1 hydraulic fluid port P1.4 with
The hydraulic fluid port B2 of motor L2；The hydraulic fluid port F2 of the serial communication mouth P4.4 connection motor L2 of directional control valve 4.
When directional control valve 4 is in the working position of hydraulic fluid port P4.1, P4.2 closing and hydraulic fluid port P4.3, P4.4 connection, in movement
When equipment is turned, when motor L1 is in outside, then the oil of motor L1 output is greater than the oil that motor L2 needs, the height for connection chamber of connecting
Pressure oil can be by draining check valve 2 to the hydraulic fluid port P1.3 draining of directional control valve 1, to realize the difference of two motors L1, L2
Speed；When motor L1 is in inside, then the oil of motor L1 output is less than the oil that motor L2 needs, then the hydraulic fluid port of directional control valve 1
The oil return of P1.1 can be by check valve 3 to series connection connection chamber repairing, to realize the differential of two drive motors L1, L2.So
One, the driving force of hydraulic travel system can be made to promote one times, improve equipment climbing capacity and road conditions adaptability.In addition,
Directional control valve 4 may be, for example, two position four-way solenoid valves of spring reset, function a variety of shapes as shown in Fig. 4 a to Fig. 4 l
Formula.
Furthermore during descent run, when the gradient reaches, and gravity load is made to be greater than walking resistance, motor walking is lost
Speed, the appearance of motor oil inlet is emptied for shortage of oil, and then hydraulic system element may be made to generate cavitation erosion, and Hydraulic Elements make
With the lost of life, Hydraulic System Reliability is reduced.Therefore, as shown in figure 5, hydraulic moving control unit 100 preferably can be with
Including check valve 5, the entrance P5.1 of check valve 5 is connected to the hydraulic fluid port P1.1 of directional control valve 1, the outlet P5.2 of check valve 5 with
The hydraulic fluid port P1.3 of directional control valve 1 is connected to.Alternatively, as shown in fig. 6, hydraulic moving control unit 100 preferably can also include
Check valve 6 and check valve 7, the entrance P6.1 of check valve 6, outlet P6.2 respectively with the hydraulic fluid port P1.1 and hydraulic fluid port of directional control valve 1
P1.2 connection, entrance P7.1, the outlet P7.2 of check valve 7 are connected to the hydraulic fluid port P1.1 of directional control valve 1 and hydraulic fluid port P1.4 respectively.
So, in drive motor stall of walking, oil sources fuel feeding supplement, by check valve 5 and directional control valve 1,
Or the oil inlet repairing by check valve 6 or by check valve 7 to motor, it prevents motor oil inlet to be emptied, eliminates and therefore cause
Hydraulic Elements cavitate risk, further improve the reliability of Hydraulic Elements and hydraulic system.
In addition, as shown in fig. 7, hydraulic moving control unit 100 preferably can also include counterbalance valve 8.The oil of counterbalance valve 8
Mouth P8.1 is connected to the hydraulic fluid port P1.1 of directional control valve 1, and the hydraulic fluid port P8.2 of counterbalance valve 8 is connected to reservoir port T.Counterbalance valve 8
Setting can increase motor return oil pressure value to meeting the abundant repairing requirement of motor, to eliminate motor due to repairing is insufficient caused by suction
Empty and cavitation erosion hidden danger, further improves element and system reliability.
It is noted that reasonable braking distance is the important technical indicator of mobile device, need by hydraulic time
Suitable braking system is set in road to meet this requirement.Parking braking and service brake can be divided by use occasion braking.
Parking braking is mainly used for guaranteeing that mobile device is reliably parked under mobile device halted state, and service brake is for making mobile device
Prevent walking stall to ensure equipment safety system by the manipulation switching of driving status to halted state or during descent run
It is dynamic.Hydraulic braking can be used in the service brake of the mobile devices such as hydraulic-driven walking arrangement, is realized by brake valve.If hydraulic row
Walk and be not provided with brake valve in circuit, although can also by select with middle position braking function directional control valve 1 (such as
Figure: 2c, 2d, 2e) carry out attainment brake hydraulic pressure, but the spool of Fig. 2 c, Fig. 2 d need to match customized, element versatility reduction, and make
Increased during dynamic by the repairing resistance of directional control valve 1, it may occur however that it is emptied risk, Fig. 2 e spool braking rigidity is too big,
User experience is bad when braking too anxious, and in addition hydraulic shock easily causes greatly element high pressure to damage very much.It is of course also possible to pass through adjusting
The switching characteristics of parking braking adjust braking distance, but this can accelerate the abrasion of parking braking to reduce its service life,
Moreover the brake force of parking braking is limited, and adjustable extent is narrow, and grade braking effect is poor, be easy to appear " descending brake failure " and
The security risk of " upward slope car slipping ".
Therefore, as shown in Figure 8 a, hydraulic moving control unit 100 preferably can also include hydraulic brake valve 9.Hydraulic system
Dynamic valve 9 includes hydraulic fluid port P9.1, hydraulic fluid port P9.2, hydraulic fluid port P9.3 and hydraulic fluid port P9.4, wherein the hydraulic fluid port P9.1 of hydraulic brake valve 9 and
Hydraulic fluid port P9.2 is connected to the hydraulic fluid port P1.2 of directional control valve 1 and hydraulic fluid port P1.4 respectively, hydraulic fluid port P9.3, the hydraulic fluid port of hydraulic brake valve 9
P9.4 is separately connected the hydraulic fluid port B2 of the hydraulic fluid port F1 and motor L2 of motor L1.In other embodiments, as shown in Fig. 8 b and Fig. 8 d, liquid
Pressure brake valve 9 further includes hydraulic fluid port P9.5, and hydraulic fluid port P9.5 is connected to outside control oil sources Pi.Even, as shown in Fig. 8 c and Fig. 8 d, liquid
Pressing brake valve 9 further includes hydraulic fluid port P9.6, and hydraulic fluid port P9.6 is connected to the hydraulic fluid port P1.1 of directional control valve 1.It is controlled in hydraulic moving single
Increase hydraulic brake valve 9 in member 100, mobile device is made to be provided with superior, reliable double brake, the safety of mobile device,
Reliability is further improved.
As shown in Fig. 9 a to Fig. 9 d: hydraulic brake valve 9 is a kind of internal control hydraulic lock (Fig. 9 a)；Or hydraulic brake valve 9 is
Hydraulic lock (Fig. 9 b) of the internal control with bidirectional relief valve between hydraulic fluid port P9.3 and hydraulic fluid port P9.4；Or hydraulic brake valve 9 is internal control band oil
Mouthful P9.3 is to hydraulic fluid port P9.4 overflow valve and hydraulic fluid port P9.4 to the hydraulic lock (Fig. 9 c) of hydraulic fluid port P9.3 overflow valve；Or hydraulic brake valve
9 be hydraulic fluid port P1.1 overflow of the internal control with hydraulic fluid port P9.3, P9.4 to directional control valve 1, the hydraulic fluid port P1.1 of directional control valve 1 to hydraulic fluid port
P9.3, hydraulic fluid port P9.4 repairing overflow valve hydraulic lock (Fig. 9 d).
As shown in Fig. 9 e to Fig. 9 h: hydraulic brake valve 9 is a kind of external control hydraulic lock (Fig. 9 e)；Or hydraulic brake valve 9 is
Hydraulic lock (Fig. 9 f) of the external control with bidirectional relief valve between hydraulic fluid port P9.3 and hydraulic fluid port P9.4；Or hydraulic brake valve 9 is external control band oil
Mouthful P9.3 is to hydraulic fluid port P9.4 overflow valve and hydraulic fluid port P9.4 to the hydraulic lock (Fig. 9 g) of hydraulic fluid port P9.3 overflow valve；Or external control hydraulic lock
Hydraulic fluid port P1.1 overflow for external control with hydraulic fluid port P9.3, hydraulic fluid port P9.4 to directional control valve 1, the hydraulic fluid port P1.1 of directional control valve 1 are arrived
Hydraulic fluid port P9.3, hydraulic fluid port P9.4 repairing overflow valve hydraulic lock (Fig. 9 h).
As shown in Fig. 9 i to Fig. 9 l: hydraulic brake valve 9 is a kind of internal control balanced valve (Fig. 9 i)；Or hydraulic brake valve 9 is
Balanced valve (Fig. 9 j) of the internal control with bidirectional relief valve between hydraulic fluid port P9.3 and hydraulic fluid port P9.4；Or hydraulic brake valve 9 is internal control band oil
Mouthful P9.3 is to hydraulic fluid port P9.4 overflow valve and hydraulic fluid port P9.4 to the balanced valve (Fig. 9 k) of hydraulic fluid port P9.3 overflow valve；Or hydraulic brake valve
9 be hydraulic fluid port P1.1 overflow of the internal control with hydraulic fluid port P9.3, hydraulic fluid port P9.4 to directional control valve 1, and the hydraulic fluid port P1.1 of directional control valve 1 is arrived
Hydraulic fluid port P9.3, hydraulic fluid port P9.4 repairing overflow valve balanced valve (Fig. 9 l).
As shown in Fig. 9 m to Fig. 9 p: hydraulic brake valve 9 is a kind of external control balanced valve (Fig. 9 m)；Or hydraulic brake valve 9 is
Balanced valve (Fig. 9 n) of the external control with bidirectional relief valve between hydraulic fluid port P9.3 and hydraulic fluid port P9.4；Or hydraulic brake valve 9 is external control hydraulic fluid port
P9.3 is to hydraulic fluid port P9.4 overflow valve and hydraulic fluid port P9.4 to the balanced valve (Fig. 9 o) of hydraulic fluid port P9.3 overflow valve；Or hydraulic brake valve 9
Hydraulic fluid port P1.1 overflow for external control with hydraulic fluid port P9.3, hydraulic fluid port P9.4 to directional control valve 1, the hydraulic fluid port P1.1 of directional control valve 1 are arrived
Hydraulic fluid port P9.3, hydraulic fluid port P9.4 repairing overflow valve balanced valve (Fig. 9 p).
The performance configuration of hydraulic brake valve 9 is rich and varied, can meet the needs of mobile device difference motor-driven operating condition.
Further, as shown in Figure 10 a, hydraulic moving control unit 100 can also include flow controller 10 and flow controller 11.
10 both ends of flow controller are connected to the hydraulic fluid port P9.1 of hydraulic brake valve 9 and hydraulic fluid port P9.3 respectively, 11 both ends of flow controller respectively with it is hydraulic
The hydraulic fluid port P9.2 of brake valve 9 is connected to hydraulic fluid port P9.4.So, mobile device can be made when losing from walking ability, unlocked
After parking braking, motor can be in quick condition, and equipment easy to remove moves under external force and transition.Certainly, can also lead to
It crosses and increases throttle valve in hydraulic moving control unit 100 and realize same function, such as shown in Figure 10 b, hydraulic moving control
Unit 100 processed further includes throttle valve 12, and 12 both ends of throttle valve are connected to the hydraulic fluid port P9.3 of hydraulic brake valve 9 and hydraulic fluid port P9.4.
The present embodiment is only the exemplary illustration of the utility model, do not conflict in technical characteristic, structure not contradiction, without prejudice to
Under the premise of the purpose of utility model of the utility model, each element in the present embodiment can any combination, collocation it is corresponding using composition
Hydraulic moving control unit.
As shown in figure 11, another embodiment of the utility model provides a kind of hydraulic travel system 200, comprising: hydraulic moving
Control unit MU1, steering and brak control unit MU2, multiple running motors such as running motor L1 and running motor L2, braking
Device L3 and steering actuator L4.
Hydraulic moving control unit 100 in any of the preceding embodiments can be used in hydraulic moving control unit MU1, such as Figure 11
Shown in hydraulic moving control unit MU1 be formed by combining by Fig. 3, Fig. 5 and Fig. 8 b in previous embodiment.Certainly, hydraulic
Travelling control unit MU1 can be also composed of other elements in previous embodiment.
As shown in figure 11, the hydraulic fluid port P1.3 of the directional control valve 1 in hydraulic moving control unit MU1 is connected to hydraulic moving
The hydraulic fluid port U11 of control unit MU1, the hydraulic fluid port P1.1 of directional control valve 1 are connected to the hydraulic fluid port U12 of hydraulic moving control unit MU1,
The hydraulic fluid port P1.2 and hydraulic fluid port P1.4 of directional control valve 1 pass through hydraulic brake valve 9 and its hydraulic fluid port P9.3 respectively and connect with hydraulic fluid port P9.4
To motor hydraulic fluid port connector U13, U16 of hydraulic moving control unit MU1, the outlet of the entrance P2.1, check valve 3 of check valve 2
P3.2 is respectively connected to motor hydraulic fluid port connector U14, U15 of hydraulic moving control unit MU1.In addition, the oil of hydraulic brake valve 9
Mouth P9.5 is connected to the hydraulic fluid port U17 of hydraulic moving control unit MU1 in order to be connected with outside control oil sources.
It turns to and brak control unit MU2 may be, for example, the element for controlling mobile device and turning to and braking.Referring to Figure 11, turn
To with brak control unit MU2 can for example including pressure-gradient control valve 13, overflow valve 14, directional control valve 15, check valve 16 and sequence
Valve 17.The entrance P13.1 of pressure-gradient control valve 13 is connected to the hydraulic fluid port U21 of steering and brak control unit MU2 in order to connect pressure oil
Source mouthful P, the priority port P13.2 of pressure-gradient control valve 13 are connected to the hydraulic fluid port P15.3 of directional control valve 15, the by-pass port of pressure-gradient control valve 13
P13.3 is connected to the hydraulic fluid port P17.1 of sequence valve 17.The hydraulic fluid port P14.1 and hydraulic fluid port P14.2 of overflow valve 14 respectively with pressure-gradient control valve 13
Priority port P13.2 is connected to by-pass port P13.3.Directional control valve 15 is, for example, M type three position four-way electromagnetic valve.Directional control valve 15
Hydraulic fluid port P15.1 be connected to the hydraulic fluid port P16.1 of check valve 16, the hydraulic fluid port P15.2 and hydraulic fluid port P15.4 of directional control valve 15 respectively with
Steering is connected to the hydraulic fluid port U23 of brak control unit MU2 with hydraulic fluid port U24.The hydraulic fluid port P16.2 of check valve 16 and the oil of sequence valve 17
Mouth P17.1 connection.The hydraulic fluid port P17.2 of sequence valve 17 is connected to steering and the hydraulic fluid port U22 of brak control unit MU2, sequence valve 17
Hydraulic fluid port P17.3 be connected to steering and the hydraulic fluid port U26 of brak control unit MU2.In addition, turning to brak control unit MU2 also
Including hydraulic fluid port U27, and the by-pass port P13.3 of hydraulic fluid port U27 connection pressure-gradient control valve 13.
Brake L3 may be, for example, with the device for making mobile device deceleration, stopping or keep the functions such as halted state.Turn
To the device that actuator L4 may be, for example, for making mobile device carry out direction conversion.
As shown in figure 11, hydraulic moving control unit MU1 passes through steering and brak control unit MU2 for directional control valve 1
Hydraulic fluid port P1.3 be connected to pressure oil-source mouth P.Specifically, the hydraulic fluid port P1.3 of the directional control valve 1 of hydraulic moving control unit MU1
It is connected to the hydraulic fluid port U11 of hydraulic moving control unit MU1, and the hydraulic fluid port U22 of hydraulic fluid port U11 and steering and brak control unit MU2
Connection, turns to and the hydraulic fluid port U21 of brak control unit MU2 is connected to pressure oil-source mouth P.The oil of hydraulic moving control unit MU1
Mouth U12 is connected to reservoir port T, multiple motor hydraulic fluid port connector such as the hydraulic fluid port U13, hydraulic fluid port of hydraulic moving control unit MU1
U14, hydraulic fluid port U15, hydraulic fluid port U16 respectively with the hydraulic fluid port F1 of running motor L1, hydraulic fluid port B1, the hydraulic fluid port F2 of running motor L2, hydraulic fluid port B2
Connection.Turn to and brak control unit MU2 hydraulic fluid port U23, hydraulic fluid port U24 respectively with steering actuator L4 two hydraulic fluid ports TA, TB
Connection, turns to and the hydraulic fluid port BC of the hydraulic fluid port U25 and brake L3 of brak control unit MU2 are connected to.
In addition, the hydraulic fluid port U26 of steering and brak control unit MU2 are connected to reservoir port T.Further, it turns to and brakes
The hydraulic fluid port U27 of control unit MU2 is connected to the hydraulic fluid port U17 of hydraulic moving control unit MU1.
In addition, as shown in figure 12, hydraulic travel system 200 can also be for example including the work of selection control unit MU3 and second
Mode actuator L5, the second operating mode actuator L5 herein are, for example, to act mutual exclusion executing agency.
Referring to Figure 12, select control unit MU3 that can use for example including overflow valve 18, overflow valve 19 and directional control valve 20
In selection, the flow direction of control hydraulic oil.Directional control valve 20 is, for example, two four-way directional control valves.The oil of directional control valve 20
Mouth P20.3, P20.1, P20.2, P20.4 are respectively connected to hydraulic fluid port U31, U32, U33, U34 of selection control unit MU3.Overflow
Hydraulic fluid port P18.1, P18.2 of valve 18 are respectively communicated with the hydraulic fluid port P20.1 and P20.2 of directional control valve 20, the hydraulic fluid port of overflow valve 19
P19.1, P19.2 are respectively communicated with the hydraulic fluid port P20.1 and P20.3 of directional control valve 20.
It turns to and brak control unit MU2 is by selecting control unit MU3 to be connected to pressure oil-source mouth P.Specifically, it turns to
It is connected to the hydraulic fluid port U21 of brak control unit MU2 with the hydraulic fluid port U34 of selection control unit MU3, selects the oil of control unit MU3
Mouth U31 is connected to pressure oil-source mouth P.The hydraulic fluid port of the hydraulic fluid port U33 and the second operating mode actuator L5 of control unit MU3 is selected to connect
It is logical.In addition, the hydraulic fluid port U32 of selection control unit MU3 is connected to reservoir port T.Selection control unit MU3 and the second operating mode are held
The increase of row device L5, realizes the time-sharing multiplex of pressure oil-source state mutual exclusion, improves the utilization rate of oil sources；It is mutual to realize movement
The mutual exclusion dispensing for denounceing executing agency's power oil sources, improves the security reliability of mutual exclusion action control.
200 technical effect of hydraulic travel system provided by the embodiment of the utility model may refer to aforementioned hydraulic travelling control
The embodiment of unit 100, details are not described herein.
Preferred embodiments of the present invention, still, the utility model and unlimited are described in detail in conjunction with attached drawing above
Detail in above embodiment can be to the skill of the utility model in the range of the technology design of the utility model
Art scheme carries out a variety of simple variants, these simple variants belong to the protection scope of the utility model.
It is further to note that specific technical features described in the above specific embodiments, in not lance
It in the case where shield, can be combined in any appropriate way, in order to avoid unnecessary repetition, the utility model is to each
No further explanation will be given for the possible combination of kind.
In addition, any combination can also be carried out between a variety of different embodiments of the utility model, as long as it is not disobeyed
The thought for carrying on the back the utility model, equally should be considered as content disclosed in the utility model.
Finally, it should be noted that above embodiments are only to illustrate the technical solution of the utility model, rather than its limitations；
Although the utility model is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that:
It is still possible to modify the technical solutions described in the foregoing embodiments, or part of technical characteristic is carried out etc.
With replacement；And these are modified or replaceed, various embodiments of the utility model technology that it does not separate the essence of the corresponding technical solution
The spirit and scope of scheme.
Claims (10)
1. a kind of hydraulic moving control unit (100) characterized by comprising
Directional control valve (1), the third hydraulic fluid port (P1.3) of the directional control valve (1) are described for connecting pressure oil-source mouth (P)
The first hydraulic fluid port (P1.1) of directional control valve (1) is for connecting reservoir port (T)；
First check valve (2), the outlet (P2.2) of first check valve (2) and the third hydraulic fluid port of the directional control valve (1)
(P1.3) it is connected to；And
Second one-way valve (3), the entrance (P3.1) of the second one-way valve (3) and first hydraulic fluid port of the directional control valve (1)
(P1.1) it is connected to, the outlet (P3.2) of the second one-way valve (3) is connected to the entrance (P2.1) of first check valve (2)；
Wherein, the 4th hydraulic fluid port of the second hydraulic fluid port (P1.2) and the directional control valve (1) of the directional control valve (1)
(P1.4), the outlet (P3.2) of the entrance (P2.1) of first check valve (2) and the second one-way valve (3)
For connecting the hydraulic fluid port of multiple motors.
2. hydraulic moving control unit (100) as described in claim 1, which is characterized in that the hydraulic moving control unit
It (100) further include second direction control valve (4), the first serial communication mouth (P4.3) connection of the second direction control valve (4)
First series connection of the outlet (P3.2) of the second one-way valve (3), the second direction control valve (4) blocks hydraulic fluid port
(P4.1) second hydraulic fluid port (P1.2) of the directional control valve (1), the second string of the second direction control valve (4) are connected
Connection blocks the 4th hydraulic fluid port (P1.4) that hydraulic fluid port (P4.2) connects the directional control valve (1)；The second direction control valve
(4) the second serial communication mouth (P4.4) connects one of multiple hydraulic fluid ports of the multiple motor.
3. hydraulic moving control unit (100) as described in claim 1, which is characterized in that the hydraulic moving control unit
It (100) further include third check valve (5), the entrance (P5.1) of the third check valve (5) and the institute of the directional control valve (1)
State the first hydraulic fluid port (P1.1) connection, described the of the outlet (P5.2) of the third check valve (5) and the directional control valve (1)
Three hydraulic fluid ports (P1.3) connection；Or
The hydraulic moving control unit (100) further includes the 4th check valve (6) and the 5th check valve (7), and the described 4th is unidirectional
The entrance (P6.1) of valve (6), the outlet (P6.2) of the 4th check valve (6) are described with the directional control valve (1) respectively
First hydraulic fluid port (P1.1) is connected to second hydraulic fluid port (P1.2) of the directional control valve (1), the 5th check valve (7)
Entrance (P7.1), the 5th check valve (7) outlet (P7.2) respectively with first hydraulic fluid port of the directional control valve (1)
(P1.1) it is connected to the 4th hydraulic fluid port (P1.4) of the directional control valve (1).
4. hydraulic moving control unit (100) as described in claim 1, which is characterized in that the hydraulic moving control unit
It (100) further include counterbalance valve (8), described the of the first hydraulic fluid port (P8.1) of the counterbalance valve (8) and the directional control valve (1)
One hydraulic fluid port (P1.1) connection, the second hydraulic fluid port (P8.2) of the counterbalance valve (8) are connected to the reservoir port (T).
5. hydraulic moving control unit (100) as described in claim 1, which is characterized in that the hydraulic moving control unit
It (100) further include hydraulic brake valve (9), the first hydraulic fluid port (P9.1) and the hydraulic brake valve (9) of the hydraulic brake valve (9)
The second hydraulic fluid port (P9.2) respectively with second hydraulic fluid port (P1.2) of the directional control valve (1) and the directional control valve
(1) the 4th hydraulic fluid port (P1.4) connection, third hydraulic fluid port (P9.3), the hydraulic brake valve of the hydraulic brake valve (9)
(9) the 4th hydraulic fluid port (P9.4) is respectively connected to two hydraulic fluid ports of the multiple motor.
6. hydraulic moving control unit (100) as claimed in claim 5, which is characterized in that the hydraulic brake valve (9) is also wrapped
The 5th hydraulic fluid port (P9.5) is included, the 5th hydraulic fluid port (P9.5) is used to be connected to outside control oil sources (Pi).
7. hydraulic moving control unit (100) as claimed in claim 5, which is characterized in that the hydraulic brake valve (9) is also wrapped
The 6th hydraulic fluid port (P9.6) is included, the 6th hydraulic fluid port (P9.6) is connected to the first hydraulic fluid port P1.1 of the directional control valve (1).
8. hydraulic moving control unit (100) as claimed in claim 5, which is characterized in that the hydraulic moving control unit
(100) further include first throttle device (10) and second choke (11), first throttle device (10) both ends respectively with the liquid
First hydraulic fluid port (P9.1) of pressure brake valve (9) is connected to the third hydraulic fluid port (P9.3) of the hydraulic brake valve (9), institute
State second choke (11) both ends respectively with second hydraulic fluid port (P9.2) of the hydraulic brake valve (9) and the hydraulic braking
The 4th hydraulic fluid port (P9.4) of valve (9) is connected to；Or
The hydraulic moving control unit (100) further includes throttle valve (12), throttle valve (12) both ends respectively with the liquid
The third hydraulic fluid port (P9.3) of pressure brake valve (9) is connected to the 4th hydraulic fluid port (P9.4) of the hydraulic brake valve (9).
9. a kind of hydraulic travel system (200) characterized by comprising
Hydraulic moving control unit, the hydraulic moving control unit are the hydraulic row as described in claim 1-8 any one
Walk control unit (100)；
It turns to and brak control unit (MU2)；
Multiple running motors (L1, L2)；
Brake (L3)；And
It turns to actuator (L4)；
Wherein, the hydraulic moving control unit passes through the steering and brak control unit (MU2) for the directional control valve
(1) the third hydraulic fluid port (P1.3) is connected to the pressure oil-source mouth (P), multiple motors of the hydraulic moving control unit
Hydraulic fluid port connector (U13, U14, U15, U16) is by second hydraulic fluid port (P1.2) of the directional control valve (1) and the direction
The 4th hydraulic fluid port (P1.4) of control valve (1), the entrance (P2.1) of first check valve (2) and second list
The hydraulic fluid port (F1, B1, F2, B2) of the outlet (P3.2) and the multiple running motor (L1, L2) to valve (3) is connected to；
The steering is also connected to the hydraulic fluid port for turning to actuator (L4) and the brake (L3) with brak control unit (MU2)
And the connection reservoir port (T).
10. hydraulic travel system (200) as claimed in claim 9, which is characterized in that the hydraulic travel system (200) is also
It include: selection control unit (MU3) and the second operating mode actuator (L5), wherein the steering and brak control unit
(MU2) it is connected to by the selection control unit (MU3) with the pressure oil-source mouth (P), and the selection control unit (MU3)
Also it is connected to the hydraulic fluid port of the second operating mode actuator (L5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822048395.9U CN209586821U (en) | 2018-12-07 | 2018-12-07 | Hydraulic moving control unit and hydraulic travel system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822048395.9U CN209586821U (en) | 2018-12-07 | 2018-12-07 | Hydraulic moving control unit and hydraulic travel system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209586821U true CN209586821U (en) | 2019-11-05 |
Family
ID=68349805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822048395.9U Withdrawn - After Issue CN209586821U (en) | 2018-12-07 | 2018-12-07 | Hydraulic moving control unit and hydraulic travel system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209586821U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109306978A (en) * | 2018-12-07 | 2019-02-05 | 湖南十开科技有限公司 | Hydraulic moving control unit and hydraulic travel system |
-
2018
- 2018-12-07 CN CN201822048395.9U patent/CN209586821U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109306978A (en) * | 2018-12-07 | 2019-02-05 | 湖南十开科技有限公司 | Hydraulic moving control unit and hydraulic travel system |
| CN109306978B (en) * | 2018-12-07 | 2023-12-08 | 湖南十开科技有限公司 | Hydraulic walking control unit and hydraulic walking system |
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