CN108317240A - Loading machine gearbox cooling oil flow control system - Google Patents
Loading machine gearbox cooling oil flow control system Download PDFInfo
- Publication number
- CN108317240A CN108317240A CN201810340701.8A CN201810340701A CN108317240A CN 108317240 A CN108317240 A CN 108317240A CN 201810340701 A CN201810340701 A CN 201810340701A CN 108317240 A CN108317240 A CN 108317240A
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- CN
- China
- Prior art keywords
- oil
- pilot
- cooling oil
- gear
- operated type
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 100
- 238000004891 communication Methods 0.000 claims abstract description 10
- 239000003921 oil Substances 0.000 claims description 176
- 241000009298 Trigla lyra Species 0.000 claims description 29
- 239000012208 gear oil Substances 0.000 claims description 19
- 239000012530 fluid Substances 0.000 claims description 10
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000010727 cylinder oil Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- 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
- F16H57/0412—Cooling or heating; Control of temperature
- F16H57/0415—Air cooling or ventilation; Heat exchangers; Thermal insulations
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Details Of Gearings (AREA)
Abstract
The present invention relates to cooling system for speed changing box technical field, especially a kind of loading machine gearbox cooling oil flow control system, including：Splitter, the inlet communication that the cooling oil in gearbox passes through oil return line and splitter；Radiator is arranged on oil return line；And pilot-operated type three position three-way control valve, two of splitter outlets respectively with forward-reverse shelves cooling oil duct and the inlet communication of pilot-operated type three position three-way control valve, the present invention carries out throttling appropriate by the cooling oil oil duct to " non-binding gear " and controls, so that cooling oil is led to as far as possible " in conjunction with gear " automatically, take away the heat generated in the course of work, the reliability and service life of gearbox are improved, and the inventive structure is compact, of low cost, there is preferable practicability.
Description
Technical field
The present invention relates to cooling system for speed changing box technical field, especially a kind of loading machine gearbox cooling oil flow-rate adjustment
System.
Background technology
Existing loading machine is become in structure type using monoblock type or split type fluid power with mechanical hydraulic speed changer
Square device and fluid power shift transmission, the multi-plate wet clutch of hydraulic control carry out the conversion of gear.Tests prove that loading machine
Gearbox heat generates main source when being that a certain gear of gearbox combines, in starting, braking and overload active friction plate and
Relative motion is generated between driven friction disk, i.e. slipping phenomenon causes；And non-binding gear meshing gear is only empty set operating, together
When due between active friction plate and driven friction disk there are gap, so it is smaller to generate heat in work.Existing loading machine becomes
The cooling oil stream amount of fast case is evenly distributed between " in conjunction with gear " and " non-binding gear ", cannot be accomplished to distribute according to need, be caused
It cannot fully be taken away by cooling oil in conjunction with the amount of heat that gear is generated in severe duty, cause speed change box clutch friction
Piece is sintered.
Invention content
The technical problem to be solved by the present invention is to：Cooling oil stream amount in order to solve loading machine gearbox in the prior art exists
It is evenly distributed between " in conjunction with gear " and " non-binding gear ", cannot accomplish to distribute according to need, cause to combine gear in severe duty
When the amount of heat that generates the problem of cannot fully being taken away by cooling oil, speed change box clutch friction plate is caused to be sintered, now carry
For a kind of loading machine gearbox cooling oil flow control system.
The technical solution adopted by the present invention to solve the technical problems is：A kind of loading machine gearbox cooling oil flow-rate adjustment
System, the gearbox are equipped with gear valve, and the gear valve corresponds to control drive shift oil cylinder by control piper respectively, retreats
Shelves oil cylinder, one grade of oil cylinder, two grades of oil cylinders and third gear oil cylinder, the cooling oil flow control system include：
Splitter, the inlet communication that the cooling oil in the gearbox passes through oil return line and splitter；
Radiator is arranged on oil return line；
And pilot-operated type three position three-way control valve, two of splitter outlets respectively with forward-reverse shelves cooling oil duct
And the inlet communication of pilot-operated type three position three-way control valve, two of pilot-operated type three position three-way control valve outlets respectively with two grades
Third gear cooling oil duct and the connection of one grade of cooling oil duct, the pilot control opening of the pilot-operated type three position three-way control valve left end with one grade
Control piper connection where oil cylinder, the pilot control opening of the pilot-operated type three position three-way control valve right end respectively with two grades of oil cylinders
The control piper at place and the control piper connection where third gear oil cylinder；
After the pilot control opening of pilot-operated type three position three-way control valve left end leads to oil, the cooling oil stream amount of one grade of cooling oil duct
Increase, the cooling oil stream amount of two grades of third gear cooling oil ducts is reduced；When the pilot control opening of pilot-operated type three position three-way control valve right end
After logical oil, the cooling oil stream amount of two grades of third gear cooling oil ducts increases, and the cooling oil stream amount of one grade of cooling oil duct is reduced.
Further, after the pilot control opening of pilot-operated type three position three-way control valve left end logical oil, pilot-operated type 3-position-3-way
The spool of control valve moves to right；After the pilot control opening of pilot-operated type three position three-way control valve right end leads to oil, pilot-operated type 3-position-3-way
The spool of control valve moves to left.
Further, the control piper where two grades of oil cylinders and the control piper where third gear oil cylinder respectively with shuttle valve
Two inlet communications, the outlet of the shuttle valve is connected to the pilot control opening of pilot-operated type three position three-way control valve right end, passes through
Shuttle valve realizes that any one in two grades of oil cylinders or third gear oil cylinder works, and pilot-operated type three position three-way control valve is made to commutate, i.e., two grades work
When, the control piper pressure where third gear oil cylinder is zero, and when third gear works, the control piper pressure where two grades of oil cylinders is zero.
Further, the oil return line is equipped with fluid torque-converter and oil return valve, and the cooling oil in the oil return line is successively
Splitter is reached through fluid torque-converter, oil return valve and radiator.
The beneficial effects of the invention are as follows：The loading machine gearbox cooling oil flow control system of the present invention passes through to " non-knot
The cooling oil oil duct of conjunction gear " carries out throttling control appropriate, so that cooling oil is led to as far as possible " in conjunction with gear " automatically, takes away work
Make the heat generated in the process, improves the reliability and service life of gearbox, and the inventive structure is compact, of low cost, has
Preferable practicability.
Description of the drawings
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is the schematic diagram of loading machine gearbox cooling oil flow control system of the present invention.
In figure：1, fluid torque-converter, 2, oil return valve, 3, radiator, 4, splitter, 5, shuttle valve, 6, pilot-operated type 3-position-3-way
Control valve, 7, two grades of third gear cooling oil ducts, 8, one grades of cooling oil ducts, 9, forward-reverse shelves cooling oil duct, 10, drive shift oil cylinder,
11, reverse drive gear oil cylinder, 12, one grades of oil cylinders, 13, two grades of oil cylinders, 14, third gear oil cylinder, 15, gear valve, 16, control piper, 17, return
Oil circuit.
Specific implementation mode
In conjunction with the accompanying drawings, the present invention is further explained in detail.These attached drawings are simplified schematic diagram, only with
Illustration illustrates the basic structure of the present invention, therefore it only shows the composition relevant to the invention, direction and with reference to (for example,
Upper and lower, left and right, etc.) can be only used for helping the description to the feature in attached drawing.Therefore, it is not adopted in restrictive, sense
With detailed description below, and claimed theme is only limited by appended claims and its equivalent form
Range.
Embodiment 1
As shown in Figure 1, a kind of loading machine gearbox cooling oil flow control system, the gearbox is equipped with gear valve
15, the gear valve 15 corresponds to 11, one grades of control drive shift oil cylinder 10, reverse drive gear oil cylinder oil cylinders by control piper 16 respectively
12, two grades of oil cylinders 13 and third gear oil cylinder 14, the cooling oil flow control system include：
Splitter 4, the inlet communication that the cooling oil in the gearbox passes through oil return line 17 and splitter 4；
Radiator 3 is arranged on oil return line 17；
And pilot-operated type three position three-way control valve 6, two of the splitter 4 outlets respectively with forward-reverse shelves cooling oil
The inlet communication in road 9 and pilot-operated type three position three-way control valve 6, two outlet difference of the pilot-operated type three position three-way control valve 6
It is connected to two grades of third gear cooling oil ducts 7 and one grade of cooling oil duct 8, guide's control of 6 left end of pilot-operated type three position three-way control valve
Donsole is connected to the control piper 16 where one grade of oil cylinder 12, the pilot control of 6 right end of pilot-operated type three position three-way control valve
Mouth is connected to the control piper 16 where two grades of oil cylinders 13 and the control piper 16 where third gear oil cylinder 14 respectively；
After the pilot control opening of 6 left end of pilot-operated type three position three-way control valve leads to oil, the cooling oil stream of one grade of cooling oil duct 8
Amount increases, and the cooling oil stream amount of two grades of third gear cooling oil ducts 7 is reduced；When the guide of 6 right end of pilot-operated type three position three-way control valve is controlled
After the logical oil of donsole, the cooling oil stream amount of two grades of third gear cooling oil ducts 7 increases, and the cooling oil stream amount of one grade of cooling oil duct 8 is reduced.
After the pilot control opening of 6 left end of pilot-operated type three position three-way control valve leads to oil, pilot-operated type three position three-way control valve 6
Spool moves to right；After the pilot control opening of 6 right end of pilot-operated type three position three-way control valve leads to oil, pilot-operated type three position three-way control valve 6
Spool move to left.
The control piper 16 where control piper 16 and third gear oil cylinder 14 where two grades of oil cylinders 13 respectively with shuttle valve 5
Two inlet communications, the outlet of the shuttle valve 5 is connected to the pilot control opening of 6 right end of pilot-operated type three position three-way control valve, leads to
It crosses shuttle valve 5 and realizes that any one in two grades of oil cylinders 13 or third gear oil cylinder 14 works, pilot-operated type three position three-way control valve 6 is made to commutate.
The oil return line 17 is equipped with fluid torque-converter 1 and oil return valve 2, and the cooling oil in the oil return line 17 is successively through liquid
Power torque-converters 1, oil return valve 2 and radiator 3 reach splitter 4.
The operation principle of above-mentioned loading machine gearbox cooling oil flow control system is as follows：
Through being pumped into fluid torque-converter 1,1 oil return of fluid torque-converter dissipates cooling oil in gearbox by radiator 3
Heat reaches splitter 4, and the cooling oil in oil return line 17 is made to be divided into two-way, is cooled down into forward-reverse shelves wherein remaining all the way
Oil duct 9, another way enter pilot-operated type three position three-way control valve 6；
When gearbox, which is hung, advances one grade, gear valve 15 is marched forward grade oil cylinder 10 and one grade of oil cylinder 12 by control piper 16
Input pressure oil, the piston pressing friction piece of oil cylinder make gearbox output torque, in the control piper 16 where one grade of oil cylinder 12
Pressure oil enter the pilot control opening of 6 left end of pilot-operated type three position three-way control valve, make pilot-operated type three position three-way control valve 6
Spool moves to right, and the cooling oil increased in pilot-operated type three position three-way control valve 6 enters the flow in one grade of cooling oil duct 8, reduces
Cooling oil in pilot-operated type three position three-way control valve 6 enters the flow in two grades of third gear cooling oil ducts 7, to two grades of third gear
The cooling oil of cooling oil duct 7 throttles, and is increased into one grade of cooling oil duct 8 of gearbox and forward-reverse shelves cooling oil duct with this
9 cooling oil stream amount；When gearbox, which is hung, retreats one grade and advance one grade similarly, gear valve 15 is drawn back by control piper 16
Shelves oil cylinder 11 and one grade of oil cylinder 12 input pressure oil, the spool of pilot-operated type three position three-way control valve 6 equally move to right；
When gearbox, which is hung, advances two grades, gear valve 15 is marched forward grade oil cylinder 10 and two grades of oil cylinders 13 by control piper 16
Input pressure oil, the piston pressing friction piece of oil cylinder make gearbox output torque, in the control piper 16 where two grades of oil cylinders 13
Pressure oil the pilot control opening of 6 right end of pilot-operated type three position three-way control valve is reached after shuttle valve 5, make pilot-operated type 3-position-3-way control
The spool of valve 6 processed moves to left, and the cooling oil increased in pilot-operated type three position three-way control valve 6 enters in two grades of third gear cooling oil ducts 7
Flow, the cooling oil reduced in pilot-operated type three position three-way control valve 6 enters the flow in one grade of cooling oil duct 8, to right
The cooling oil of one grade of cooling oil duct 8 throttles, and is increased into gear box second gear third gear cooling oil duct 7 and forward-reverse shelves with this
The cooling oil stream amount of cooling oil duct 9；When gearbox, which is hung, retreats two grades and advance two grades similarly, gear valve 15 passes through control piper
16 draw back grade oil cylinder 11 and two grades of oil cylinder 13 input pressures oil, the spool of pilot-operated type three position three-way control valve 6 equally move to left；
When gearbox hangs advance third gear, gear valve 15 is marched forward grade oil cylinder 10 and third gear oil cylinder 14 by control piper 16
Input pressure oil, the piston pressing friction piece of oil cylinder make gearbox output torque, in the control piper 16 where third gear oil cylinder 14
Pressure oil the pilot control opening of 6 right end of pilot-operated type three position three-way control valve is reached after shuttle valve 5, make pilot-operated type 3-position-3-way control
The spool of valve 6 processed moves to left, and the cooling oil increased in pilot-operated type three position three-way control valve 6 enters in two grades of third gear cooling oil ducts 7
Flow, the cooling oil reduced in pilot-operated type three position three-way control valve 6 enters the flow in one grade of cooling oil duct 8, to right
The cooling oil of one grade of cooling oil duct 8 throttles, and is increased into gear box second gear third gear cooling oil duct 7 and forward-reverse shelves with this
The cooling oil stream amount of cooling oil duct 9；Similarly with advance third gear when gearbox, which is hung, retreats third gear, gear valve 15 passes through control piper
16 draw back grade oil cylinder 11 and third gear oil cylinder 14 input pressure oil, the spool of pilot-operated type three position three-way control valve 6 equally move to left.
Above-mentioned desirable embodiment according to the present invention is enlightenment, and through the above description, relevant staff is complete
Can various changes and amendments be carried out without departing from the scope of the technological thought of the present invention'.This invention it is technical
Range is not limited to the contents of the specification, it is necessary to determine its technical scope according to right.
Claims (4)
1. a kind of loading machine gearbox cooling oil flow control system, the gearbox is equipped with gear valve (15), the gear
Valve (15) respectively by the corresponding control drive shift oil cylinder (10) of control piper (16), reverse drive gear oil cylinder (11), one grade of oil cylinder (12),
Two grades of oil cylinders (13) and third gear oil cylinder (14), it is characterised in that：The cooling oil flow control system includes：
Splitter (4), the inlet communication that the cooling oil in the gearbox passes through oil return line (17) and splitter (4)；
Radiator (3) is arranged on oil return line (17)；
And pilot-operated type three position three-way control valve (6), two of the splitter (4) outlets respectively with forward-reverse shelves cooling oil
Two of the inlet communication in road (9) and pilot-operated type three position three-way control valve (6), the pilot-operated type three position three-way control valve (6) go out
Mouth is connected to two grades of third gear cooling oil ducts (7) and one grade of cooling oil duct (8) respectively, the pilot-operated type three position three-way control valve (6)
The pilot control opening of left end is connected to the control piper (16) where one grade of oil cylinder (12), the pilot-operated type three position three-way control valve
(6) pilot control opening of right end respectively with the control piper (16) where two grades of oil cylinders (13) and the control where third gear oil cylinder (14)
Tubulation road (16) is connected to；
After the pilot control opening of pilot-operated type three position three-way control valve (6) left end leads to oil, the cooling oil stream of one grade of cooling oil duct (8)
Amount increases, and the cooling oil stream amount of two grades of third gear cooling oil ducts (7) is reduced；When the elder generation of pilot-operated type three position three-way control valve (6) right end
After leading the logical oil of control mouth, the cooling oil stream amount of two grades of third gear cooling oil ducts (7) increases, the cooling oil stream of one grade of cooling oil duct (8)
Amount is reduced.
2. loading machine gearbox cooling oil flow control system according to claim 1, it is characterised in that：When pilot-operated type three
After the logical oil of pilot control opening of position three-way control valve (6) left end, the spool of pilot-operated type three position three-way control valve (6) moves to right；In the ban
After the logical oil of the pilot control opening of conduction three position three-way control valve (6) right end, the spool of pilot-operated type three position three-way control valve (6) is left
It moves.
3. loading machine gearbox cooling oil flow control system according to claim 1, it is characterised in that：Two grades of oil
The control piper (16) where control piper (16) and third gear oil cylinder (14) where cylinder (13) respectively with two of shuttle valve (5) into
Mouth connection, the outlet of the shuttle valve (5) is connected to the pilot control opening of pilot-operated type three position three-way control valve (6) right end.
4. loading machine gearbox cooling oil flow control system according to claim 1, it is characterised in that：The oil return line
(17) it is equipped with fluid torque-converter (1) and oil return valve (2), the cooling oil in the oil return line (17) is successively through fluid torque-converter
(1), oil return valve (2) and radiator (3) reach splitter (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810340701.8A CN108317240A (en) | 2018-04-17 | 2018-04-17 | Loading machine gearbox cooling oil flow control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810340701.8A CN108317240A (en) | 2018-04-17 | 2018-04-17 | Loading machine gearbox cooling oil flow control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108317240A true CN108317240A (en) | 2018-07-24 |
Family
ID=62898066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810340701.8A Pending CN108317240A (en) | 2018-04-17 | 2018-04-17 | Loading machine gearbox cooling oil flow control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108317240A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112594367A (en) * | 2021-03-02 | 2021-04-02 | 北京航空航天大学 | Multi-path distribution cooling and lubricating system of pure electric or hybrid power driving system |
| CN112648356A (en) * | 2020-12-16 | 2021-04-13 | 益阳富佳科技有限公司 | Multi-section automatic stepless speed changing box of crawler tractor |
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|---|---|---|---|---|
| KR100748761B1 (en) * | 2006-07-19 | 2007-08-13 | 현대자동차주식회사 | Lube direction valve for clutch cooling of hybrid continueously variable transmission |
| US20100151981A1 (en) * | 2008-12-11 | 2010-06-17 | Chip Hartinger | Control of the Flow Rate in a Transmission Oil Cooler |
| JP2011038615A (en) * | 2009-08-17 | 2011-02-24 | Sumitomo Heavy Industries Techno-Fort Co Ltd | Cooling oil quantity control device of wet type clutch brake in mechanical press |
| CN104196991A (en) * | 2014-08-27 | 2014-12-10 | 盛瑞传动股份有限公司 | Gearbox and gearbox lubrication control oil way |
| CN107035849A (en) * | 2017-05-24 | 2017-08-11 | 捷孚传动科技有限公司 | Gearbox lubrication cooling system and gearbox |
| CN208089927U (en) * | 2018-04-17 | 2018-11-13 | 国机重工集团常林有限公司 | Loading machine gearbox cooling oil flow control system |
-
2018
- 2018-04-17 CN CN201810340701.8A patent/CN108317240A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100748761B1 (en) * | 2006-07-19 | 2007-08-13 | 현대자동차주식회사 | Lube direction valve for clutch cooling of hybrid continueously variable transmission |
| US20100151981A1 (en) * | 2008-12-11 | 2010-06-17 | Chip Hartinger | Control of the Flow Rate in a Transmission Oil Cooler |
| JP2011038615A (en) * | 2009-08-17 | 2011-02-24 | Sumitomo Heavy Industries Techno-Fort Co Ltd | Cooling oil quantity control device of wet type clutch brake in mechanical press |
| CN104196991A (en) * | 2014-08-27 | 2014-12-10 | 盛瑞传动股份有限公司 | Gearbox and gearbox lubrication control oil way |
| CN107035849A (en) * | 2017-05-24 | 2017-08-11 | 捷孚传动科技有限公司 | Gearbox lubrication cooling system and gearbox |
| CN208089927U (en) * | 2018-04-17 | 2018-11-13 | 国机重工集团常林有限公司 | Loading machine gearbox cooling oil flow control system |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112648356A (en) * | 2020-12-16 | 2021-04-13 | 益阳富佳科技有限公司 | Multi-section automatic stepless speed changing box of crawler tractor |
| CN112648356B (en) * | 2020-12-16 | 2024-02-27 | 益阳富佳科技有限公司 | Multi-section automatic stepless speed changing box of crawler tractor |
| CN112594367A (en) * | 2021-03-02 | 2021-04-02 | 北京航空航天大学 | Multi-path distribution cooling and lubricating system of pure electric or hybrid power driving system |
| CN112594367B (en) * | 2021-03-02 | 2021-05-28 | 北京航空航天大学 | Multi-path distribution cooling and lubricating system of pure electric or hybrid power driving system |
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