CN108386531A - A kind of gear oil circulating system and its control method - Google Patents
A kind of gear oil circulating system and its control method Download PDFInfo
- Publication number
- CN108386531A CN108386531A CN201810145215.0A CN201810145215A CN108386531A CN 108386531 A CN108386531 A CN 108386531A CN 201810145215 A CN201810145215 A CN 201810145215A CN 108386531 A CN108386531 A CN 108386531A
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- Prior art keywords
- oil
- gear
- pump group
- circulating system
- hydraulic pressure
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0434—Features relating to lubrication or cooling or heating relating to lubrication supply, e.g. pumps ; Pressure control
- F16H57/0435—Pressure control for supplying lubricant; Circuits or valves therefor
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The present invention provides a kind of gear oil circulating system and its control methods, the gear oil circulating system include by grease-box (8) to the oil inlet pipe of gear-box (14) and by the gear-box (14) to the grease-box (8) oil return line, further include being arranged on the oil inlet pipe into oil flowmeter (13), the return flow meter (5) being arranged on the oil return line, the oil return pump group (3) for being arranged on the oil return line and being driven by motor, and the hydraulic pressure pump group (1) being connect with the motor line, the hydraulic pressure pump group (1), it is described to be electrically connected into oil flowmeter (13) and the return flow meter (5) with the controller；The hydraulic pressure pump group (1) has pressure flow hybrid control module.Gear oil circulating system reliability provided by the invention is higher, is not necessarily to frequent starting motor during maintaining into, return flow balance, is conducive to extend the service life of motor.
Description
Technical field
The present invention relates to rock tunnel(ling) machine technical fields, more particularly to a kind of gear oil circulating system and its controlling party
Method.
Background technology
For TBM (rock tunnel(ling) machine) as large-scale hard rock heading equipment, master is driven to critical component, the lubrication of main driving and
Cooling is even more the most important thing, directly affects the service life of main driving.In the circulatory system of gear oil, gear-box and lubricating oil
It is connected to oil return line by oil inlet pipe between case, quantitative gear oil pump on oil inlet pipe will cool down in grease-box
Gear oil is transported in gear-box, lubricates main driving；Deep fat in gear-box is drawn back lubrication by the gear oil pump on oil return line
Fuel tank is cooled down.Gear oil pump on oil return line is driven by motor, and motor is then driven by quantitative hydraulic pump.
Equal into, return flow in order to ensure, common practice is the oil inlet pipe and oil return pipe in the circulatory system at present
Two speed governing valves and are set as same flow value by each one speed governing valve of setting in road, still, by speed governing valve repeatable accuracy,
The influence of the various uncertain factors such as the volumetric efficiency of gear oil pump and the precision of flowmeter passes through after running a period of time
The case where often occurring is that the actual flow of speed governing valve is no longer consistent with setting value, so in order to avoid the fluid mistake in gear-box
It is more or very few, it often needs to shut down the oil pump on oil inlet pipe or oil return line, this can cause motor frequent starting, and then shorten
The service life of motor reduces the reliability of system.
Therefore, gear oil circulating system how is improved, to avoid frequent starting motor, to extend the use longevity of motor
Life, the reliability for improving system, become those skilled in the art's technical problem urgently to be resolved hurrily.
Invention content
In view of this, the present invention provides a kind of gear oil circulating system and its control method, the gear oil circulating system
Reliability is higher, is not necessarily to frequent starting motor during maintaining into, return flow balance, is conducive to extend the use of motor
Service life.
In order to achieve the above object, the present invention provides the following technical solutions：
A kind of gear oil circulating system includes by the oil inlet pipe of grease-box to gear-box and by the gear-box to institute
The oil return line for stating grease-box further includes：
Be arranged on the oil inlet pipe into oil flowmeter and the return flow meter that is arranged on the oil return line；
With the controller being electrically connected into oil flowmeter and the return flow meter；
The hydraulic pressure pump group being electrically connected with the controller, the hydraulic pressure pump group have pressure flow hybrid control module；
The oil return pump group for being arranged on the oil return line and being driven by motor, the motor and the hydraulic pressure pump group pipeline
Connection.
Preferably, in said gear oil circulating system, tank gauge, the fuel tank are provided in the grease-box
Liquid level gauge is electrically connected with the controller, and the controller is provided with timing unit.
Preferably, it in said gear oil circulating system, is provided on the pipeline by the hydraulic pressure pump group to the motor
Safe valve group, when the safe valve group is located at the first working condition, the liquid of the hydraulic pressure pump group output flows through the motor
Flow into the liquid-return box of the hydraulic pressure pump group again afterwards；
When the safe valve group is located at the second working condition, the liquid of the hydraulic pressure pump group output is not passed through the motor
And flow directly into the liquid-return box of the hydraulic pressure pump group.
Preferably, further include overflow valve group in said gear oil circulating system, one end of the overflow valve group with it is described
The output end of oil inlet pump group on oil inlet pipe is connected, and the other end is connected with the grease-box.
Preferably, in said gear oil circulating system, first filter, the oil inlet are provided on the oil return line
The second filter is provided on pipeline.
Preferably, in said gear oil circulating system, the first filter is high pressure filter with alarm.
Preferably, in said gear oil circulating system, radiator is provided on the oil return line.
Preferably, it in said gear oil circulating system, is provided in the gear-box for detecting the minimum limit of fluid
Liquid-level switch, the liquid-level switch is electrically connected with the controller.
Preferably, it in said gear oil circulating system, is provided on the oil return line for detecting oil liquid temperature
Temperature sensor, the temperature sensor are electrically connected with the controller.
A kind of control method of gear oil circulating system, the gear oil circulating system are as disclosed in above-mentioned any one
Gear oil circulating system, the control method includes：
The controller receives and compares the flow value into oil flowmeter and the return flow meter；
When the flow value of the return flow meter is less than the flow value into oil flowmeter, the controller controls institute
It states hydraulic pressure pump group and increases discharge capacity, the rotating speed of the motor is made to increase；
When the flow value of the return flow meter is more than the flow value into oil flowmeter, the controller controls institute
It states hydraulic pressure pump group and reduces discharge capacity, the rotating speed of the motor is made to reduce.
According to above-mentioned technical proposal it is found that in gear oil circulating system provided by the invention, the scavenge oil pump on oil return line
Group is driven by motor, and motor and hydraulic pressure pump group piping connection, equal due to hydraulic pressure pump group, return flow meter and into oil flowmeter
It is electrically connected with the controller, so controller can compare the size of the flow value into oil flowmeter and return flow meter, and with this
To be finally reached tune according to control hydraulic pressure pump group increase or with discharge capacity is reduced to make the rotating speed of motor increase or reduce
The flow for saving oil return pump group, makes the purpose of oil inlet pipe and oil return line flow equilibrium.It can be seen that maintaining into, oil return stream
During amount balance, gear oil circulating system provided by the invention is without shutting down motor, it is thus possible to avoid frequent starting electric
Machine impacts service life, is conducive to extend the service life of motor, and make gear oil circulating system have it is higher can
By property.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is a kind of schematic diagram for gear oil circulating system that the embodiment of the present invention one provides.
In figure label for：
1, hydraulic pressure pump group；2, safe valve group；3, oil return pump group；4, temperature sensor；5, return flow meter；6, radiator；
7, first filter；8, grease-box；9, tank gauge；10, oil inlet pump group；11, overflow valve group；12, the second filter；
13, into oil flowmeter；14, gear-box；15, liquid-level switch.
Specific implementation mode
In order to make it easy to understand, the invention will be further described below in conjunction with the accompanying drawings.
Embodiment one
Referring to Fig. 1, for a kind of schematic diagram for gear oil circulating system that the embodiment of the present invention one provides.
The gear oil circulating system that embodiment one provides includes by grease-box 8 to the oil inlet pipe of gear-box 14 and by tooth
Roller box 14 arrives the oil return line of grease-box 8, further include hydraulic pressure pump group 1, oil return pump group 3, return flow meter 5, into oil flowmeter
13 and controller (not shown).
Wherein, oil return pump group 3 and return flow meter 5 are all disposed on oil return line, are arranged into oil flowmeter 13 in oil inlet
On pipeline；
Oil return pump group 3 is by motor (in figure unmarked) driving, and motor and 1 piping connection of hydraulic pressure pump group, hydraulic pressure pump group 1 have
There is pressure flow hybrid control module；
It hydraulic pressure pump group 1, return flow meter 5 and is electrically connected with the controller into oil flowmeter 13.
When operation, controller receives and compares the flow value into oil flowmeter 13 and return flow meter 5, when return flow meter
When 5 flow value is less than into the flow value of oil flowmeter 13, controller controls hydraulic pressure pump group 1 and increases discharge capacity, makes the rotating speed of motor
Increase, fluid flow that then oil return pump group 3 is taken away from gear-box 14 increases, until return flow meter 5 and into oil flowmeter 13
Flow value it is identical until, at this point, gear oil circulating system is in equilibrium state；
When the flow value of return flow meter 5 is more than into the flow value of oil flowmeter 13, controller control hydraulic pressure pump group 1 subtracts
Small displacement makes the rotating speed of motor reduce, and the fluid flow that then oil return pump group 3 is taken away from gear-box 14 reduces, until oil return stream
Until gauge 5 is identical with the flow value into oil flowmeter 13, at this point, gear oil circulating system is in equilibrium state.
It can be seen that gear oil circulating system provided by the invention by by controller control discharge capacity hydraulic pressure pump group 1 come
Drive motor, and oil return pump group 3 is driven by motor, thus motor can be changed by changing the discharge capacity of hydraulic pressure pump group 1
Rotating speed, and then change the flow of oil return pump group 3, during remaining equal into, return flow, without shutting down motor, because
And frequent starting motor can be avoided to impact service life, it is conducive to extend the service life of motor, and make gear oil
The circulatory system has higher reliability.
In order to preferably adjust the discharge capacity of hydraulic pressure pump group 1, the flow control of the pressure flow hybrid control module of hydraulic pressure pump group 1
Mode processed is generally electric proportional control.
In specific practical application, if return flow meter 5 and larger into the error of oil flowmeter 13, controller can be influenced
Regulating effect, in order to improve control accuracy, can setting is electrically connected with the controller in the grease-box 8 tank gauge 9,
And timing unit is set in controller, the height change of oil level in grease-box 8 can be detected by tank gauge 9 in this way
Value, to which the height change value of oil level is converted to oil mass changing value, at the same time, root according to the cross-sectional area of grease-box 8
Time change value corresponding with above-mentioned oil mass changing value is obtained according to timing unit, and then oil inlet pipe can be calculated and return
Flow difference between oil pipe line, then controller the discharge capacity of hydraulic pressure pump group 1 can be accordingly adjusted according to the flow difference.
In order to improve safety, in embodiment one, safe valve group 2 is provided on the pipeline by hydraulic pressure pump group 1 to motor, when
When safe valve group 2 is located at the first working condition, liquid that hydraulic pressure pump group 1 exports flows through flows into returning for hydraulic pressure pump group 1 after motor again
Liquid case；When safe valve group 2 is located at the second working condition, the liquid that hydraulic pressure pump group 1 exports is not passed through motor and flows directly into liquid
The liquid-return box of press pump group 1.By the safe valve group 2 of setting, the maximum working pressure of motor can be not only limited, protects component,
The no-load starting that can also realize hydraulic pressure pump group 1, to help to extend the service life of hydraulic pressure pump group 1.
Similarly, in order to improve safety, overflow valve group 11 can be set between grease-box 8 and gear-box 14, such as Fig. 1
Shown, one end of overflow valve group 11 is connected with the output end of the oil inlet pump group 10 on oil inlet pipe, the other end and grease-box 8
It is connected.By the way that overflow valve group 11 is arranged, the maximum working pressure in oil inlet pipe can be limited, component is protected.
In order to reduce influence of the impurity in fluid to component, in embodiment one, the first mistake is provided on oil return line
Filter 7 is provided with the second filter 12 on oil inlet pipe.In specific practical application, first filter 7 can be with alarm
High pressure filter.
In order to improve cooling effect, radiator 6 can be set on oil return line, as shown in Figure 1.
Embodiment two
On the basis of embodiment one, in order to further increase cooling effect, in embodiment two, also set on oil inlet pipe
It is equipped with radiator.
In the above various embodiments, in order to ensure oil return pump group 3 can clean boot, setting can use in the gear-box 14
In the liquid-level switch 15 of the detection minimum limit of fluid, and liquid-level switch 15 is electrically connected with the controller, in 3 startup of oil return pump group
Before, controller determines that the fluid in gear-box 14 does not arrive minimum limit or hereinafter, then restarts hydraulic pressure pump group 1 first.
In view of the influence of temperature, in order to ensure oil return pump group 3 can clean boot, use can be set on oil return line
In the temperature sensor 4 of detection oil liquid temperature, and temperature sensor 4 is electrically connected with the controller, in 3 startup of oil return pump group
Before, controller determines that the oil liquid temperature in oil return line without departing from the maximum operating temperature of oil return pump group 3, is then restarted first
Hydraulic pressure pump group 1.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
A variety of modifications of embodiment will be apparent to those skilled in the art, it is as defined herein general
Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, the present invention will not
It can be restricted to embodiment illustrated herein, and be to fit to consistent with the principles and novel features disclosed in this article most wide
Range.
Claims (10)
1. a kind of gear oil circulating system includes by grease-box (8) to the oil inlet pipe of gear-box (14) and by the gear
Case (14) arrives the oil return line of the grease-box (8), which is characterized in that further includes：
Be arranged on the oil inlet pipe into oil flowmeter (13) and the return flow meter being arranged on the oil return line
(5)；
With the controller being electrically connected into oil flowmeter (13) and the return flow meter (5)；
The hydraulic pressure pump group (1) being electrically connected with the controller, the hydraulic pressure pump group (1) have pressure flow hybrid control module；
The oil return pump group (3) for being arranged on the oil return line and being driven by motor, the motor are managed with the hydraulic pressure pump group (1)
Road connects.
2. gear oil circulating system according to claim 1, which is characterized in that be provided with oil in the grease-box (8)
Case liquid level gauge (9), the tank gauge (9) are electrically connected with the controller, and the controller is provided with timing unit.
3. gear oil circulating system according to claim 1, which is characterized in that by the hydraulic pressure pump group (1) to the horse
Safe valve group (2) is provided on the pipeline reached, when the safe valve group (2) is located at the first working condition, the hydraulic pressure pump group
(1) liquid exported flows through the liquid-return box for flowing into the hydraulic pressure pump group (1) after the motor again；
When the safe valve group (2) is located at the second working condition, the liquid of hydraulic pressure pump group (1) output is not passed through the horse
Reach and flow directly into the liquid-return box of the hydraulic pressure pump group (1).
4. gear oil circulating system according to claim 1, which is characterized in that further include overflow valve group (11), it is described to overflow
One end of stream valve group (11) is connected with the output end of the oil inlet pump group (10) on the oil inlet pipe, the other end and the lubrication
Fuel tank (8) is connected.
5. gear oil circulating system according to claim 1, which is characterized in that be provided with the first mistake on the oil return line
Filter (7) is provided with the second filter (12) on the oil inlet pipe.
6. gear oil circulating system according to claim 5, which is characterized in that the first filter (7) is that band is alarmed
The high pressure filter of device.
7. gear oil circulating system according to claim 1, which is characterized in that be provided with radiator on the oil return line
(6)。
8. the gear oil circulating system according to any one of claim 1~7, which is characterized in that the gear-box
(14) liquid-level switch (15) for detecting the minimum limit of fluid, the liquid-level switch (15) and controller electricity are provided in
Connection.
9. gear oil circulating system according to claim 8, which is characterized in that be provided on the oil return line for examining
The temperature sensor (4) of oil liquid temperature is surveyed, the temperature sensor (4) is electrically connected with the controller.
10. a kind of control method of gear oil circulating system, which is characterized in that the gear oil circulating system is such as claim
Gear oil circulating system described in any one of 1~9, the control method include：
The controller receives and compares the flow value into oil flowmeter (13) and the return flow meter (5)；
When the flow value of the return flow meter (5) is less than the flow value into oil flowmeter (13), the controller control
It makes the hydraulic pressure pump group (1) and increases discharge capacity, the rotating speed of the motor is made to increase；
When the flow value of the return flow meter (5) is more than the flow value into oil flowmeter (13), the controller control
It makes the hydraulic pressure pump group (1) and reduces discharge capacity, the rotating speed of the motor is made to reduce.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810145215.0A CN108386531A (en) | 2018-02-12 | 2018-02-12 | A kind of gear oil circulating system and its control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810145215.0A CN108386531A (en) | 2018-02-12 | 2018-02-12 | A kind of gear oil circulating system and its control method |
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| Publication Number | Publication Date |
|---|---|
| CN108386531A true CN108386531A (en) | 2018-08-10 |
Family
ID=63068906
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810145215.0A Pending CN108386531A (en) | 2018-02-12 | 2018-02-12 | A kind of gear oil circulating system and its control method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109538747A (en) * | 2019-01-14 | 2019-03-29 | 中铁工程装备集团有限公司 | A kind of double fuel tank gear oil lubrication ratio regulating systems |
| CN111013703A (en) * | 2019-12-12 | 2020-04-17 | 西藏华泰龙矿业开发有限公司 | Cone crusher oil flow protection device and cone crusher oil flow protection method |
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| CN101201069A (en) * | 2007-12-18 | 2008-06-18 | 浙江大学 | Variable frequency pump-control-motor closed circuit based on energy regulation |
| CN102153027A (en) * | 2011-04-12 | 2011-08-17 | 武汉船用机械有限责任公司 | Stepless regulation constant tension device for hydraulic winch |
| CN202896268U (en) * | 2012-09-28 | 2013-04-24 | 杭州电子科技大学 | Hybrid power return circuit based on mechanical and hydraulic combined energy regeneration |
| CN105972194A (en) * | 2016-06-28 | 2016-09-28 | 中车戚墅堰机车车辆工艺研究所有限公司 | Lubricating cooling system for vehicle gear box |
| CN106499682A (en) * | 2016-12-27 | 2017-03-15 | 中交第二航务工程局有限公司 | A kind of hydraulic system for pile driving barge |
| CN207848924U (en) * | 2018-02-12 | 2018-09-11 | 铁建重工新疆有限公司 | A kind of gear oil circulating system and the rock tunnel(ling) machine containing it |
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2018
- 2018-02-12 CN CN201810145215.0A patent/CN108386531A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11117907A (en) * | 1997-10-15 | 1999-04-27 | Tokimec Inc | Hydraulic system using hydraulic device |
| CN101070864A (en) * | 2007-06-25 | 2007-11-14 | 哈尔滨工业大学 | Energy-store state-liquid driving device of secondary flow-regulation coupling hydraulic energy accumulator |
| CN101201069A (en) * | 2007-12-18 | 2008-06-18 | 浙江大学 | Variable frequency pump-control-motor closed circuit based on energy regulation |
| CN102153027A (en) * | 2011-04-12 | 2011-08-17 | 武汉船用机械有限责任公司 | Stepless regulation constant tension device for hydraulic winch |
| CN202896268U (en) * | 2012-09-28 | 2013-04-24 | 杭州电子科技大学 | Hybrid power return circuit based on mechanical and hydraulic combined energy regeneration |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109538747A (en) * | 2019-01-14 | 2019-03-29 | 中铁工程装备集团有限公司 | A kind of double fuel tank gear oil lubrication ratio regulating systems |
| CN111013703A (en) * | 2019-12-12 | 2020-04-17 | 西藏华泰龙矿业开发有限公司 | Cone crusher oil flow protection device and cone crusher oil flow protection method |
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Address after: 830026 the Xinjiang Uygur Autonomous Region Urumqi economic and Technological Development Zone, 399 South Road. Applicant after: RAILWAY CONSTRUCTION HEAVY INDUSTRY XINJIANG CO., LTD. Applicant after: China Railway Construction Heavy Industry Group Co., Ltd. Address before: 830026 the Xinjiang Uygur Autonomous Region Urumqi economic and Technological Development Zone, 399 South Road. Applicant before: RAILWAY CONSTRUCTION HEAVY INDUSTRY XINJIANG CO., LTD. Applicant before: China Railway Construction Heavy Industry Co.,Ltd. |