CN208138234U - Eight drive hydraulic power unit - Google Patents
Eight drive hydraulic power unit Download PDFInfo
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- CN208138234U CN208138234U CN201820561670.4U CN201820561670U CN208138234U CN 208138234 U CN208138234 U CN 208138234U CN 201820561670 U CN201820561670 U CN 201820561670U CN 208138234 U CN208138234 U CN 208138234U
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- oil
- hydraulic
- pipeline
- control valve
- oil inlet
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Abstract
The utility model relates to one kind not only realize it is self-locking, and it is able to carry out the eight of speed regulation and drives hydraulic power unit, including fuel tank, engine, first hydraulic oil pump, two the near front wheel hydraulic motors, two left rear wheel hydraulic motors, two off-front wheel hydraulic motors and two off hind wheel hydraulic motors, first hydraulic oil pump is by engine driving, the oil outlet of first hydraulic oil pump is connected with the oil inlet of the oil inlet of the first proportional control valve and the second proportional control valve respectively by pipeline, the oil return of first proportional control valve exports and the oil return of the second proportional control valve outlet is connected by the oil inlet of pipeline and fuel tank respectively.Advantage：Eight drive hydraulic power units can not only carry out two-stage speed change, and can be realized eight drives driving by proportional control valve, while having self-locking function.
Description
Technical field
The utility model relates to one kind not only realize it is self-locking, but also be able to carry out speed regulation eight drive hydraulic power units eight
Hydraulic power unit is driven, hydraulic power system manufacturing field is belonged to.
Background technique
207064354 U of CN, title " a kind of hydraulic power system ", including fuel tank, hydraulic pump, motor, oil cylinder and accumulation of energy
Device, for providing and recycling hydraulic oil, hydraulic pump is connect fuel tank with fuel tank, and hydraulic pump is used to convey the hydraulic oil in fuel tank, liquid
Press pump is connected to motor, and motor provides power for hydraulic pump, be successively arranged on the pipeline where hydraulic pump and oil cylinder solenoid valve and
Reversal valve, solenoid valve are electrically connected with the travel switch that oil cylinder is equipped with, and the pipeline between solenoid valve and hydraulic pump is equipped with explosion-proof
Pressure switch, anti-explosion pressure switch are connected to motor, and the anti-explosion pressure switch is equipped with upper pressure limit and low pressure limit, accumulation of energy
Device is connected on the pipeline between solenoid valve and hydraulic pump.Overflow is connected on pipeline between the hydraulic pump and solenoid valve
Valve, the pipeline between one end connection hydraulic pump and solenoid valve of overflow valve, the other end of overflow valve are connected to fuel tank.The stroke
Switch is provided with, travel switch left and right settings at the both ends of oil cylinder, the both ends of oil cylinder pass through respectively branch pipe(tube) successively with commutation
Valve, solenoid valve connection, solenoid valve are connect with hydraulic pump by pipeline.The reversal valve setting includes first there are two reversal valve
Reversal valve and the second reversal valve, solenoid valve include the first solenoid valve, second solenoid valve and third solenoid valve, the first reversal valve and the
Two reversal valves are connect with the first solenoid valve, second solenoid valve respectively by branch pipe(tube), and one end of third solenoid valve passes through connecting tube
Connect respectively with the first reversal valve and the second reversal valve, the other end of third solenoid valve respectively with accumulator, solenoid valve with it is hydraulic
Pipeline connection between pump.The hydraulic pump is connected to the oil outlet of fuel tank, is equipped between hydraulic pump and the oil outlet of fuel tank
Filter, the hydraulic oil in fuel tank are transported in system after being filtered by filter by hydraulic pump.The hydraulic pump and solenoid valve it
Between pipeline be equipped with check valve, check valve ensure that hydraulic oil from single direction from hydraulic pump to check valve conveying.It is insufficient
Place is：First is that this kind of hydraulic power system cannot achieve it is self-locking；Second is that this kind of hydraulic power system can not be adjusted the speed.
Utility model content
Purpose of design：To avoid the deficiency in background technique, design it is a kind of not only realize self-locking, but also be able to carry out speed regulation
Eight drive hydraulic power units.
Design scheme：To realize above-mentioned purpose of design.1, the oil outlet of first hydraulic oil pump by pipeline respectively with
The design of the oil inlet of the oil inlet of first proportional control valve and the second proportional control valve connection is that the technology of the utility model is special
One of sign.The purpose designed in this way is：First is that due to the first proportional control valve oil outlet by pipeline respectively with two left sides
The connection of the oil inlet of the oil inlet of front-wheel hydraulic motor and two left rear wheel hydraulic motors, second proportional control valve it is fuel-displaced
It mouthful is connect respectively with the oil inlet of the oil inlet of two off-front wheel hydraulic motors and two off hind wheel hydraulic motors by pipeline；Institute
The oil outlet of the oil outlet and two left rear wheel hydraulic motors of stating two the near front wheel hydraulic motors passes through pipeline and the first ratio respectively
The oil return import connection of example control valve, the oil outlet of two off-front wheel hydraulic motors and two off hind wheel hydraulic motors go out
Hydraulic fluid port passes through pipeline respectively and connect with the oil return import of the second proportional control valve, controls in the first proportional control valve and the second ratio
When valve is all in closed state, hydraulic motor will be in close state, and both hydraulic power unit was realized self-locking；Second is that the first ratio
The oil inlet of control valve and the setting of the second proportional control valve can enable user realize the control and movement of car body, such as work as the first ratio
Realize that the advance of left side crawler belt realizes left steering by a small margin with retrogressing and car body when example control valve conducting, when the second ratio
The right turn by a small margin that the advance and retrogressing and car body of the right crawler belt are realized when example control valve conducting, when the first ratio
The advance and retrogressing that car body is realized when control valve and the second proportional control valve are opened in the same direction, when the first proportional control valve and the
Two proportional control valves are reversely opened（A positive and a negative is opened）When car body pivot stud may be implemented.It 2, further include second hydraulic
Oil pump, for second hydraulic oil pump by engine driving, the oil outlet of second hydraulic oil pump is hydraulic by pipeline and first
The oil outlet of oil pump connects and the second hydraulic oil pump oil-in is by the design of the oil outlet of pipeline and fuel tank connection, is that this is practical
The two of novel technical characteristic.The purpose designed in this way is：It further include the second hydraulic oil pump, second hydraulic oil pump is by sending out
The oil outlet of motivation driving, second hydraulic oil pump is connect by pipeline with the oil outlet of the first hydraulic oil pump and second is hydraulic
Oil pump oil inlet is connected by the oil outlet of pipeline and fuel tank, the setting of the second hydraulic oil pump, enables hydraulic power unit
Realize the function of two-stage speed regulation.3, first hydraulic oil pump and the second hydraulic oil pump are duplex shaft gear pump and the first hydraulic oil
Pump and the second hydraulic oil pump are driven simultaneously by engine, the oil outlet of second hydraulic oil pump pass through pipeline and solenoid valve into
Hydraulic fluid port connects and the oil outlet one of solenoid valve is connect by pipeline with the oil outlet of the first hydraulic oil pump, oil outlet two-way piping
The design connecting with the oil inlet of fuel tank is the three of the technical characteristics of the utility model.The purpose designed in this way is：Described
One hydraulic oil pump and the second hydraulic oil pump are that duplex shaft gear pumps and the first hydraulic oil pump and the second hydraulic oil pump are same by engine
When drive, the oil outlet of second hydraulic oil pump passes through the connection of the oil inlet of pipeline and solenoid valve and the oil outlet one of solenoid valve
It is connect by pipeline with the oil outlet of the first hydraulic oil pump, the oil inlet connection of oil outlet two-way piping and fuel tank, engine
Power is provided, duplex gear pump is driven, hydraulic oil power is provided, when the rate request of traveling changes, user can be with
The increase and reduction of hydraulic oil discharge capacity, realization two-stage tune are realized with closure by the conducting of control two-stage huge discharge control solenoid valve
The function of speed, so that hydraulic power unit is easier to realize wireless manipulation or remote control.4, at the oil inlet of the fuel tank
Equipped with first filter, equipped with the second filter between the oil outlet of first hydraulic oil pump and the oil inlet of pressure unloading valve
Design, is the four of the technical characteristics of the utility model.The purpose designed in this way is：First is equipped at the oil inlet of the fuel tank
Filter is equipped with the second filter between the oil outlet of first hydraulic oil pump and the oil inlet of pressure unloading valve, to hydraulic dynamic
The hydraulic oil being recycled in power device plays a role in filtering, so that the impurity for avoiding hydraulic oil from generating in cyclic process is hydraulic
Motor causes to damage, and then improves the service life of hydraulic power unit.5, the oil outlet of first hydraulic oil pump is set
Have that the oil inlet of pressure unloading valve and pressure unloading valve is connect by pipeline with the oil outlet of the first hydraulic oil pump, oil outlet passes through
Pipeline connect with the oil inlet of the oil inlet of the first proportional control valve and the second proportional control valve respectively, oil return opening by pipeline with
The design of the oil inlet connection of fuel tank, is the five of the technical characteristics of the utility model.The purpose designed in this way is：Pressure off-load
The setting of valve, so that being more than that the hydraulic oil of certain pressure pressure returns to fuel tank by oil return line, it is ensured that hydraulic oil is to set
Pressure pressure is by each device in pipeline, and both the setting of pressure unloading valve played a protective role to hydraulic power unit.6, institute
It states pipeline between the oil inlet of the first proportional control valve and the oil inlet of the near front wheel hydraulic motor and is equipped with check valve, described first
Pipeline between the oil inlet of proportional control valve and the oil inlet of left rear wheel hydraulic motor is equipped with check valve, the second ratio control
Pipeline between the oil inlet of valve processed and the oil inlet of off-front wheel hydraulic motor is equipped with check valve, second proportional control valve
Pipeline between oil inlet and the oil inlet of off hind wheel hydraulic motor is equipped with the design of check valve, is that the technology of the utility model is special
The six of sign.The purpose designed in this way is：It has installed check valve additional between proportional control valve and hydraulic motor, car body can be prevented
The phenomenon that being slipped by slope when resting on slope.
Technical solution：One kind eight drives hydraulic power unit, including fuel tank, engine, the first hydraulic oil pump, two the near front wheels
Hydraulic motor, two left rear wheel hydraulic motors, two off-front wheel hydraulic motors and two off hind wheel hydraulic motors, first liquid
Pressure oil pump passes through the pipeline oil inlet with the first proportional control valve respectively by engine driving, the oil outlet of first hydraulic oil pump
Mouth is connected with the oil inlet of the second proportional control valve and the oil inlet of the first hydraulic oil pump is connected by pipeline fuel tank oil outlet, institute
The oil outlet for stating the first proportional control valve passes through the pipeline oil inlet and two left rear wheels with two the near front wheel hydraulic motors respectively
The oil inlet of hydraulic motor connects, the oil outlet of second proportional control valve by pipeline respectively with two hydraulic horses of off-front wheel
The connection of the oil inlet of the oil inlet reached and two off hind wheel hydraulic motors；The oil outlet and two of two the near front wheel hydraulic motors
The oil outlet of platform left rear wheel hydraulic motor passes through pipeline respectively and connect with the oil return import of the first proportional control valve, two right sides
The oil outlet of the oil outlet of front-wheel hydraulic motor and two off hind wheel hydraulic motors passes through pipeline and the second proportional control valve respectively
Oil return import connection, the first proportional control valve oil return outlet and the second proportional control valve oil return outlet passes through pipeline respectively
It is connect with the oil inlet of fuel tank.
Compared with the background art, eight drive hydraulic power units can not only carry out two-stage speed change, Er Qietong to the utility model
Crossing proportional control valve can be realized eight drives driving, while have self-locking function.
Detailed description of the invention
Fig. 1 is eight drive hydraulic power unit structural schematic diagrams.
Specific embodiment
Embodiment 1：Referring to attached drawing 1.One kind eight drives hydraulic power unit, including fuel tank 1, engine 2, the first hydraulic oil pump
3, two off-front wheel hydraulic motors 6 of left rear wheel hydraulic motor 5, two of the near front wheel hydraulic motor 4, two and two off hind wheels are hydraulic
Motor 7, first hydraulic oil pump 3 are driven by engine 2, the oil outlet of first hydraulic oil pump 3 by pipeline respectively with
The oil inlet of the connection of the oil inlet of the oil inlet of first proportional control valve 8 and the second proportional control valve 9 and the first hydraulic oil pump 3 is logical
The oil outlet of the connection of 1 oil outlet of piping fuel tank, first proportional control valve 8 is hydraulic with two the near front wheels respectively by pipeline
The connection of the oil inlet of the oil inlet of motor 4 and two left rear wheel hydraulic motors 5, the oil outlet of second proportional control valve 9 are logical
Piping is connect with the oil inlet of the oil inlet of two off-front wheel hydraulic motors 6 and two off hind wheel hydraulic motors 7 respectively；It is described
The oil outlet of two the near front wheel hydraulic motors 4 and the oil outlet of two left rear wheel hydraulic motors 5 pass through pipeline and the first ratio respectively
The oil return import connection of example control valve 8, the oil outlet and two off hind wheel hydraulic motors 7 of two off-front wheel hydraulic motors 6
Oil outlet pass through pipeline respectively and connect with the oil return import of the second proportional control valve 9, the oil return outlet of the first proportional control valve 8
It is connect respectively by pipeline with the oil inlet of fuel tank 1 with the oil return of the second proportional control valve 9 outlet.It further include the second hydraulic oil pump
10, second hydraulic oil pump 10 is driven by engine 2, and the oil outlet of second hydraulic oil pump 10 passes through pipeline and the first liquid
The oil outlet of pressure oil pump 3 connects and 10 oil inlet of the second hydraulic oil pump is connect by pipeline with the oil outlet of fuel tank 1.Described first
Hydraulic oil pump 3 and the second hydraulic oil pump 10 are that duplex shaft gear pumps and the first hydraulic oil pump 3 and the second hydraulic oil pump 10 are by starting
Machine 2 drives simultaneously, and the oil outlet of second hydraulic oil pump 10 is connect by pipeline with the oil inlet of solenoid valve 11 and solenoid valve
11 oil outlet one connect by pipeline with the oil outlet of the first hydraulic oil pump 3, the oil inlet of oil outlet two-way piping and fuel tank 1
Mouth connection.First filter 12 is equipped at the oil inlet of the fuel tank 1.The oil outlet of first hydraulic oil pump 3 is equipped with pressure
The oil inlet of power unloading valve 13 and pressure unloading valve 13 is connect by pipeline with the oil outlet of the first hydraulic oil pump 3, oil outlet is logical
Piping respectively with the oil inlet of the first proportional control valve 8 and oil inlet of the second proportional control valve 9 is connect, oil return opening passes through pipe
Road is connect with the oil inlet of fuel tank 1.The is equipped between the oil outlet of first hydraulic oil pump 3 and the oil inlet of pressure unloading valve 13
Tow filtrator 14.Pipeline between the oil inlet of first proportional control valve 8 and the oil inlet of the near front wheel hydraulic motor 4 is equipped with
Check valve 15, the pipeline between the oil inlet of first proportional control valve 8 and the oil inlet of left rear wheel hydraulic motor 5 are equipped with single
To valve 15, the pipeline between the oil inlet of second proportional control valve 9 and the oil inlet of off-front wheel hydraulic motor 6 is equipped with unidirectional
Valve 15, the pipeline between the oil inlet of second proportional control valve 9 and the oil inlet of off hind wheel hydraulic motor 7 are equipped with check valve
15。
It is to be understood that：Although above-described embodiment contrasts detailed text to the mentality of designing of the utility model
Description, but these verbal descriptions only describe the simple text of the utility model mentality of designing, rather than practical new to this
It is practical new to each fall within this for the limitation of type mentality of designing, any combination, increase or modification without departing from the utility model mentality of designing
In the protection scope of type.
Claims (7)
1. one kind eight drives hydraulic power unit, including fuel tank（1）, engine（2）, the first hydraulic oil pump（3）, two the near front wheel liquid
Pressure motor（4）, two left rear wheel hydraulic motors（5）, two off-front wheel hydraulic motors（6）With two off hind wheel hydraulic motors（7）,
First hydraulic oil pump（3）By engine（2）Driving, it is characterized in that：First hydraulic oil pump（3）Oil outlet pass through pipe
Road respectively with the first proportional control valve（8）Oil inlet and the second proportional control valve（9）Oil inlet connection and the first hydraulic oil
Pump（3）Oil inlet pass through pipeline fuel tank（1）Oil outlet connection, first proportional control valve（8）Oil outlet pass through pipeline
Respectively with two the near front wheel hydraulic motors（4）Oil inlet and two left rear wheel hydraulic motors（5）Oil inlet connection, described the
Two proportional control valves（9）Oil outlet by pipeline respectively with two off-front wheel hydraulic motors（6）Oil inlet and two right sides after
Take turns hydraulic motor（7）Oil inlet connection；Two the near front wheel hydraulic motors（4）Oil outlet and two hydraulic horses of left rear wheel
It reaches（5）Oil outlet pass through pipeline and the first proportional control valve respectively（8）Oil return import connection, two off-front wheels are hydraulic
Motor（6）Oil outlet and two off hind wheel hydraulic motors（7）Oil outlet pass through pipeline and the second proportional control valve respectively（9）
Oil return import connection, the first proportional control valve（8）Oil return outlet and the second proportional control valve（9）Oil return outlet lead to respectively
Piping and fuel tank（1）Oil inlet connection.
2. according to claim 1 eight drive hydraulic power unit, it is characterized in that：It further include the second hydraulic oil pump（10）, institute
State the second hydraulic oil pump（10）By engine（2）Driving, second hydraulic oil pump（10）Oil outlet pass through pipeline and first
Hydraulic oil pump（3）Oil outlet connection and the second hydraulic oil pump（10）Oil inlet passes through pipeline and fuel tank（1）Oil outlet connection.
3. according to claim 2 eight drive hydraulic power unit, it is characterized in that：First hydraulic oil pump（3）With second
Hydraulic oil pump（10）For duplex shaft gear pump and the first hydraulic oil pump（3）With the second hydraulic oil pump（10）By engine（2）Simultaneously
Driving, second hydraulic oil pump（10）Oil outlet pass through pipeline and solenoid valve（11）Oil inlet connection and solenoid valve（11）
Oil outlet one pass through pipeline and the first hydraulic oil pump（3）Oil outlet connection, oil outlet two-way piping and fuel tank（1）Into
Hydraulic fluid port connection.
4. according to claim 1 eight drive hydraulic power unit, it is characterized in that：The fuel tank（1）Oil inlet at be equipped with
First filter（12）.
5. according to claim 1 or 2 or 4 eight drive hydraulic power unit, it is characterized in that：First hydraulic oil pump（3）
Oil outlet be equipped with pressure unloading valve（13）And pressure unloading valve（13）Oil inlet pass through pipeline and the first hydraulic oil pump（3）
Oil outlet connection, oil outlet by pipeline respectively with the first proportional control valve（8）Oil inlet and the second proportional control valve（9）
Oil inlet connection, oil return opening pass through pipeline and fuel tank（1）Oil inlet connection.
6. according to claim 5 eight drive hydraulic power unit, it is characterized in that：First hydraulic oil pump（3）It is fuel-displaced
Mouth and pressure unloading valve（13）Oil inlet between be equipped with the second filter（14）.
7. according to claim 1 eight drive hydraulic power unit, it is characterized in that：First proportional control valve（8）Into
Hydraulic fluid port and the near front wheel hydraulic motor（4）Oil inlet between pipeline be equipped with check valve（15）, first proportional control valve（8）
Oil inlet and left rear wheel hydraulic motor（5）Oil inlet between pipeline be equipped with check valve（15）, the second ratio control
Valve（9）Oil inlet and off-front wheel hydraulic motor（6）Oil inlet between pipeline be equipped with check valve（15）, second ratio
Control valve（9）Oil inlet and off hind wheel hydraulic motor（7）Oil inlet between pipeline be equipped with check valve（15）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820561670.4U CN208138234U (en) | 2018-04-19 | 2018-04-19 | Eight drive hydraulic power unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820561670.4U CN208138234U (en) | 2018-04-19 | 2018-04-19 | Eight drive hydraulic power unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208138234U true CN208138234U (en) | 2018-11-23 |
Family
ID=64293161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820561670.4U Expired - Fee Related CN208138234U (en) | 2018-04-19 | 2018-04-19 | Eight drive hydraulic power unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208138234U (en) |
-
2018
- 2018-04-19 CN CN201820561670.4U patent/CN208138234U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181123 |