CN208619431U - A kind of one-pump two-motor driving ratio control system - Google Patents
A kind of one-pump two-motor driving ratio control system Download PDFInfo
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- CN208619431U CN208619431U CN201821208328.2U CN201821208328U CN208619431U CN 208619431 U CN208619431 U CN 208619431U CN 201821208328 U CN201821208328 U CN 201821208328U CN 208619431 U CN208619431 U CN 208619431U
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Abstract
The utility model discloses a kind of one-pump two-motor driving ratio control systems, are made of hydraulic pump, hydraulic motor A, hydraulic motor B, two four-way electromagnetic reversing valves, check valve, overflow valves；It is characterized in that: the oil outlet of hydraulic pump connects two four-way electromagnetic reversing valve oil inlets, two oil outlets of two four-way electromagnetic reversing valves are separately connected the oil inlet of hydraulic motor A and hydraulic motor B, and the oil return opening of hydraulic motor A and hydraulic motor B are connected to the oil return opening of hydraulic pump；The check valve and overflow valve are connected in parallel between the oil inlet and oil return opening of hydraulic motor B, and the check valve conducting direction is opposite with hydraulic motor conducting direction.The utility model structure is simple, and control action is reliable, realizes a pump control and two motor operations of driving, had both reduced and produced manufacturing cost, and also reduced the failure rate of mechanical handling.
Description
Technical field
The utility model relates to a kind of hydraulic pressure systems used in varied situations using two motors of a hydraulic pump control
System, specifically a kind of one-pump two-motor driving ratio control system.
Background technique
The hydraulic motor that construction machinery hydraulic system two traditional different operating conditions use will usually use two pump drivings,
Hydraulic system structure volume is also bigger after it is assembled, and machine driving connection and piping connection are complicated, between each connector and pipeline
Between sealing it is also more easy to damage, while also increasing manufacturing cost.
Utility model content
The technical problem to be solved by the utility model is to overcome technological deficiency of the existing technology, a kind of list is provided
Double motor ratio control system is pumped, two motor operations are driven using a pump.Both it had reduced and has produced manufacturing cost, also reduction machine
The failure rate of tool manipulation.
This hair utility model one-pump two-motor driving ratio control system, by hydraulic pump, hydraulic motor A, hydraulic motor B, two
Four-way electromagnetic reversing valve, check valve, overflow valve composition.It is characterized in that: the oil outlet of hydraulic pump connects two four-way electromagnetic commutations
Valve oil inlet, two oil outlets of two four-way electromagnetic reversing valves are separately connected the oil inlet of hydraulic motor A and hydraulic motor B,
The oil return opening of hydraulic motor A and hydraulic motor B are connected to the oil return opening of hydraulic pump.The check valve and overflow valve are connected in parallel on
Between the oil inlet and oil return opening of hydraulic motor B, the check valve conducting direction is opposite with hydraulic motor conducting direction.
The hydraulic pump is pumped using enclosed.
The utility model one-pump two-motor driving ratio control system, structure is simple, and control action is reliable, realizes a pump control
Two motor operations of system and driving, had both reduced and have produced manufacturing cost, and also reduced the failure rate of mechanical handling.
Detailed description of the invention
Fig. 1 is one-pump two-motor driving ratio control system hydraulic schematic diagram of the present invention.
Specific embodiment
Below in conjunction with attached drawing and specific implementation example, the present invention will be described in further detail.
As shown in Figure 1, the utility model one-pump two-motor driving ratio control system, is used for engineering construction vehicle, by hydraulic pump
(enclosed pump) 1, running motor 3(hydraulic motor A), blower motor 4(hydraulic motor B), it is two four-way electromagnetic reversing valves 2, single
It is formed to valve 5, overflow valve 6.The hydraulic pump is that enclosed pumps (electric proportional control).Oil outlet a1 two four-ways of connection of hydraulic pump
Solenoid directional control valve oil inlet a2, the oil inlet a7 of the oil outlet a3 connection blower motor 4 of two four-way electromagnetic reversing valves, two
The oil inlet a6 of the oil outlet a5 connection running motor 3 of four-way electromagnetic reversing valve, the oil return opening b2 of running motor 3 and air blower horse
Oil return opening b3 up to 4 is connected to the oil return opening b1 of hydraulic pump.The check valve 5 and overflow valve 6 are connected in parallel on blower motor 4
Oil inlet a7 and oil return opening b3 between, 5 conducting direction of check valve is opposite with the conducting direction of blower motor 4.
1, walking horse 3 works
Control oil outlet a1 fuel-displaced electric ratio electromagnetic coil obtains electric on enclosed pump 1, and hydraulic oil is entered by oil return opening b1, out
Hydraulic fluid port a1 pressure oil output reaches the oil inlet a2 of two four-way electromagnetic reversing valves 2, and two four-way electromagnetic reversing valves 2 must be electric, into
Hydraulic fluid port a2 and oil outlet a5 mouthfuls of conducting, pressure oil are reached by the oil inlet a2 and oil outlet a5 of two four-way electromagnetic reversing valves 2
The oil inlet a6 of running motor 3,3 spinning movement of running motor, hydraulic oil enter enclosed from the oil return opening b2 oil return of running motor 3
The oil return opening b1 of pump 1 completes 3 forward motion of running motor.
When the fuel-displaced electric ratio electromagnetic coil of b1 mouthfuls of control on enclosed pump 1 obtains electric, the then reverse rotation of running motor 3.
2, blower motor 4 works
Control oil outlet a1 fuel-displaced electric ratio electromagnetic coil obtains electric on enclosed pump 1, and hydraulic oil oil return opening b1 enters, fuel-displaced
Mouth a1 pressure oil output reaches the oil inlet a2 of two four-way electromagnetic reversing valves 2, and two four-way electromagnetic reversing valves 2 must not be electric, into
Hydraulic fluid port a2 and oil outlet a3 mouthfuls of conducting, pressure oil are reached by the oil inlet a2 and oil outlet a3 of two four-way electromagnetic reversing valves 2
The oil inlet a7 of blower motor 4,4 spinning movement of running motor, hydraulic oil enter from the oil return opening b3 oil return of blower motor 4
The oil return opening b1 of enclosed pump 1, completes blower motor operation acts.
For check valve 5 to protect blower motor 4 to stop working suddenly, the impact of generation causes motor or mechanical structure
Damage.Principle is that the unexpected oil-break of oil outlet a1 of enclosed pump 1, motor generates inertia force, air blower horse due to former high-speed motion
It is transformed into hydraulic pump works mode up to 4, hydraulic oil circulation route is b3 to b4, b4 to a8, a8 to a7, passes through check valve in this way
5, so that it may eliminate blower motor inertia force.
Maximum pressure of the overflow valve 6 to limit blower motor 4.
Claims (2)
1. a kind of one-pump two-motor driving ratio control system is changed by hydraulic pump, hydraulic motor A, hydraulic motor B, two four-way electromagnetics
To valve, check valve, overflow valve composition；It is characterized in that: oil outlet two four-way electromagnetic reversing valve oil inlets of connection of hydraulic pump, two
Two oil outlets of position four-way electromagnetic reversing valve are separately connected the oil inlet of hydraulic motor A and hydraulic motor B, hydraulic motor A and
The oil return opening of hydraulic motor B is connected to the oil return opening of hydraulic pump；The check valve and overflow valve are connected in parallel on hydraulic motor B's
Between oil inlet and oil return opening, the check valve conducting direction is opposite with hydraulic motor conducting direction.
2. one-pump two-motor driving ratio control system according to claim 1, it is characterized in that: the hydraulic pump uses enclosed
Pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821208328.2U CN208619431U (en) | 2018-07-28 | 2018-07-28 | A kind of one-pump two-motor driving ratio control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821208328.2U CN208619431U (en) | 2018-07-28 | 2018-07-28 | A kind of one-pump two-motor driving ratio control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208619431U true CN208619431U (en) | 2019-03-19 |
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ID=65707847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821208328.2U Active CN208619431U (en) | 2018-07-28 | 2018-07-28 | A kind of one-pump two-motor driving ratio control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208619431U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113357217A (en) * | 2021-08-10 | 2021-09-07 | 徐州徐工环境技术有限公司 | Multifunctional waterway driving system suitable for tunnel cleaning working condition |
-
2018
- 2018-07-28 CN CN201821208328.2U patent/CN208619431U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113357217A (en) * | 2021-08-10 | 2021-09-07 | 徐州徐工环境技术有限公司 | Multifunctional waterway driving system suitable for tunnel cleaning working condition |
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