CN203641137U - Motor energy-saving system for open hydraulic system - Google Patents
Motor energy-saving system for open hydraulic system Download PDFInfo
- Publication number
- CN203641137U CN203641137U CN201320743652.5U CN201320743652U CN203641137U CN 203641137 U CN203641137 U CN 203641137U CN 201320743652 U CN201320743652 U CN 201320743652U CN 203641137 U CN203641137 U CN 203641137U
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- Prior art keywords
- oil
- motor
- pressure oil
- way
- pressure
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- Expired - Lifetime
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- 239000003921 oil Substances 0.000 claims abstract description 102
- 239000010720 hydraulic oil Substances 0.000 claims description 27
- 239000010705 motor oil Substances 0.000 abstract description 4
- 238000004134 energy conservation Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 239000002828 fuel tank Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 210000000664 rectum Anatomy 0.000 description 1
- 239000010729 system oil Substances 0.000 description 1
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Abstract
The utility model relates to a motor energy-saving system for an open hydraulic system. The motor energy-saving system comprises a high-pressure oil channel, an oil return channel and a motor, wherein the motor is used for communicating the high-pressure oil channel with the oil return channel; the oil return channel is provided with an oil recharging channel for being communicated with a pressure oil tank; controllers are arranged on the oil recharging channel, and are used for controlling the opening of the oil recharging channel through the high-pressure oil channel. According to the utility model, openings of hydraulic control one-way valves are formed in the mouth end of a pressure oil end, so that openings of the hydraulic control one-way valves are controlled by the pressure oil end, and the oil recharging channel is communicated with a motor oil return channel when in operation, so as to reduce oil return resistance and to save energy.
Description
Technical field
The utility model relates to a kind of open type hydraulic system motor energy conserving system.
Background technique
Oil hydraulic motor is the hydraulic actuator that produces continuous rotation motion, and it is mechanical energy the hydraulic energy transfer of input, makes main frame overcome load and resistance generation motion.It forms the motor control method of existing open type hydraulic system as shown in Figure 1, comprise: hydraulic oil container 1, hydraulic oil source 2, commutation main valve 3, forward repairing one-way valve 41, reversion repairing one-way valve 42, forward overload relief valve 51, reversion overload relief valve 52, oil hydraulic motor 6, the logical oil of controlling of pilot control opening a of commutation main valve 3, the left position access of commutation main valve 3.Oil hydraulic pump 2 outlet pressures oil are by commutation main valve 3 to motor forward oil inlet passage A, and system oil return is by the motor oil inlet passage B that reverse, and through commutating, main valve 3 flows back to fuel tank 1.The control principle of reversion is the same with forward, is into, oil return opposite direction. Overload relief valve 51 and 52 can limit the working pressure of motor 6, when hydraulic oil source is for shortage of oil or hydraulic oil source fuel cut-off and motor 6 while continuing rotation due to inertia, fuel tank fluid can carry out repairing to working oil path through repairing one-way valve 41 and 42, effectively prevents that motor from producing suction sky.
The hydraulic power loss of hydraulic motor transmission control system be mainly from hydraulic oil source to motor, motor is to the oil circuit pressure loss of fuel tank and the loss in efficiency of motor self.Just can reach energy-conservation object if can reduce motor to the efficiency of the pressure loss of tank oiling channel oil or raising motor self.And reducing in the oil circuit pressure loss, current method is to strengthen as much as possible return line latus rectum, this kind of method can only partly reduce oil return loses along stroke pressure, and can not avoid the local pressure loss causing through commutate main valve 3 and oil connection place in oil return.
Model utility content
The purpose of this utility model be to overcome the deficiencies in the prior art and provide motor in a kind of effective reduction open type hydraulic system to tank drainback power loss, reach the open type hydraulic system motor energy conserving system of energy-conservation object.
To achieve these goals, the technological scheme that the utility model adopts is:
A kind of open type hydraulic system motor energy conserving system, comprise the motor of high-pressure oil passage, way to cycle oil and connection high-pressure oil passage and way to cycle oil, described way to cycle oil is provided with repairing path and is communicated with pressure oil tank, described repairing path is provided with controller, and described controller is by the unlatching of repairing path described in described high-pressure oil passage control.
Described high-pressure oil passage is connected with hydraulic oil source, described way to cycle oil is connected with hydraulic oil container, the outlet pressure oil of described hydraulic oil source is connected with the high-pressure oil passage of motor by described commutation main valve, the oil return of described motor is flowed back to hydraulic oil container by way to cycle oil through commutation main valve, on described high-pressure oil passage and way to cycle oil, be equipped with repairing path, described repairing path is provided with Pilot operated check valve as controller, the unlatching control mouth of the Pilot operated check valve being communicated with described high-pressure oil passage is connected with way to cycle oil, the unlatching control mouth of the Pilot operated check valve being communicated with described way to cycle oil is communicated with high-pressure oil passage.
On described high-pressure oil passage and way to cycle oil, be equipped with overload relief valve, described overload relief valve is connected with described Pilot operated check valve respectively.
Owing to adopting such scheme, this device is by arranging the opening of Pilot operated check valve at pressure hydraulic fluid port end, thereby make the unlatching of pressure oil end control Pilot operated check valve, repairing path in the time of operation is communicated with motor way to cycle oil, reach reduction oil return resistance and reach energy-conservation object.
Brief description of the drawings
Fig. 1 (a) is former open type hydraulic system motor control system figure;
Fig. 1 (b) is former open type hydraulic system motor forward control system figure;
Fig. 2 (a) is motor control system figure of the present utility model;
Fig. 2 (b) is motor forward control system figure of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, further describe the embodiment of this patent.
With reference to Fig. 1, a kind of open type hydraulic system motor energy conserving system, as shown in Figure 2, just transferring example explanation the present embodiment to motor, the utility model comprises hydraulic oil container 1 at open type hydraulic system, hydraulic oil source 2, commutation main valve 3, forward relief valve 51, reversion relief valve 52, reversion Pilot operated check valve 71, forward Pilot operated check valve 72 and motor 6, described high-pressure oil passage A is connected with hydraulic oil source 2, described way to cycle oil B is connected with hydraulic oil container 1, the outlet pressure oil of described hydraulic oil source 2 is connected with the high-pressure oil passage A of motor 6 by described commutation main valve 3, the oil return of described motor 6 is flowed back to hydraulic oil container 1 by way to cycle oil B through commutation main valve 3, on described high-pressure oil passage A and way to cycle oil B, be equipped with repairing path, described repairing path is provided with reversion Pilot operated check valve 71, forward Pilot operated check valve 72 is as controller, the unlatching control mouth K1 of the reversion Pilot operated check valve 71 being communicated with described high-pressure oil passage A is connected with way to cycle oil B, the unlatching control mouth K2 of the forward Pilot operated check valve 72 being communicated with described way to cycle oil B is communicated with high-pressure oil passage A, when forward as shown in Fig. 2 (b), the logical oil of controlling of pilot control opening a of commutation main valve 3, the left position access of commutation main valve, hydraulic oil source outlet pressure oil passes through commutation main valve 3 to motor 6, the high pressure oil of high-pressure oil passage A acts on the unlatching control mouth K2 of forward Pilot operated check valve 72 simultaneously, forward Pilot operated check valve 72 is opened.Now motor 6 oil return parts are along former way to cycle oil B, 3 times hydraulic oil containers 1 of main reversing valve, and another part returns hydraulic oil container 1 by forward Pilot operated check valve 72, repairing oil circuit.Thereby increase on the one hand the passage of oil return, effectively reduce oil return speed, thereby reducing return line loses along stroke pressure, a part of fluid does not directly pass through main reversing valve 3 through repairing oil pipe oil sump tank on the other hand, also main reversing valve 3 oil return local pressure losses have just been reduced, effectively reduce return pressure loss, reduced motor 6 return pressure P5.In the time that load is constant, motor 6 oil inlet P 4 pressure decreaseds, have reduced hydraulic oil source delivery pressure P1 with respect to original hydraulic system, have reached energy-conservation object.In the time of reversion, in like manner also can reach energy-conservation object.The control device of above case study on implementation is that hydraulic control mode makes repairing road communicate with motor oil return, also can repairing road be communicated with motor oil return by the mode such as automatically controlled or mechanical.
Revolving on the power head motor control loop digging, before the utility model, its control principle as shown in Figure 1, because power head motor is far from hydraulic oil container, way to cycle oil reaches 10m, account for 10% of hydraulic oil source outlet pressure so record return pressure from motor return opening, after adopting the utility model as the control mode of Fig. 2, in the time of operation, because part oil return is by the oil return of repairing path, so recording return pressure declines, return pressure only accounts for 5% of hydraulic oil source outlet pressure, hydraulic oil source outlet pressure drops to original 95%, thereby make the energy-conservation ≈ 5% of hydraulic system power.
Claims (3)
1. an open type hydraulic system motor energy conserving system, comprise the motor of high-pressure oil passage, way to cycle oil and connection high-pressure oil passage and way to cycle oil, it is characterized in that: described way to cycle oil is provided with repairing path and is communicated with pressure oil tank, described repairing path is provided with controller, and described controller is by the unlatching of repairing path described in described high-pressure oil passage control.
2. open type hydraulic system motor energy conserving system according to claim 1, it is characterized in that, described high-pressure oil passage is connected with hydraulic oil source, described way to cycle oil is connected with hydraulic oil container, the outlet pressure oil of described hydraulic oil source is connected with the high-pressure oil passage of motor by commutation main valve, the oil return of described motor is flowed back to hydraulic oil container by way to cycle oil through commutation main valve, on described high-pressure oil passage and way to cycle oil, be equipped with repairing path, described repairing path is provided with Pilot operated check valve as controller, the unlatching control mouth of the Pilot operated check valve being communicated with described high-pressure oil passage is connected with way to cycle oil, the unlatching control mouth of the Pilot operated check valve being communicated with described way to cycle oil is communicated with high-pressure oil passage.
3. open type hydraulic system motor energy conserving system according to claim 1 and 2, is characterized in that, is equipped with overload relief valve on described high-pressure oil passage and way to cycle oil, and described overload relief valve is connected with described Pilot operated check valve respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320743652.5U CN203641137U (en) | 2013-11-21 | 2013-11-21 | Motor energy-saving system for open hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320743652.5U CN203641137U (en) | 2013-11-21 | 2013-11-21 | Motor energy-saving system for open hydraulic system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203641137U true CN203641137U (en) | 2014-06-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320743652.5U Expired - Lifetime CN203641137U (en) | 2013-11-21 | 2013-11-21 | Motor energy-saving system for open hydraulic system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203641137U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103671311A (en) * | 2013-11-21 | 2014-03-26 | 山河智能装备股份有限公司 | Motor energy saving system of open type hydraulic system |
| CN111994811A (en) * | 2020-08-03 | 2020-11-27 | 中国铁建重工集团股份有限公司 | Hydraulic control system and engineering vehicle |
-
2013
- 2013-11-21 CN CN201320743652.5U patent/CN203641137U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103671311A (en) * | 2013-11-21 | 2014-03-26 | 山河智能装备股份有限公司 | Motor energy saving system of open type hydraulic system |
| CN111994811A (en) * | 2020-08-03 | 2020-11-27 | 中国铁建重工集团股份有限公司 | Hydraulic control system and engineering vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140611 |