CN207598900U - Hydraulic gear-shifting system with flow stabilization apparatus - Google Patents
Hydraulic gear-shifting system with flow stabilization apparatus Download PDFInfo
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- CN207598900U CN207598900U CN201721678391.8U CN201721678391U CN207598900U CN 207598900 U CN207598900 U CN 207598900U CN 201721678391 U CN201721678391 U CN 201721678391U CN 207598900 U CN207598900 U CN 207598900U
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- oil
- port
- valve
- spool
- brake
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Abstract
The utility model is related to the hydraulic gear-shifting systems with flow stabilization apparatus, including shift module, are connected by working connection with pump oil module, and working connection is equipped with the lubrication branch of oil cooler and cooling and lubricating parts；It further includes oil pressure and compares valve, respectively with oil cooler oil outlet and lubricating the oil inlet of branch and connecting, valve body is additionally provided with drain tap and the oil inlet connected with oil pump out of the mouth for the left and right ends of the spool of oil pressure；The oil pressure collective effect of oil pressure and oil pump out of the mouth at the oil pressure in oil cooler exit, lubrication branch is on spool, when the force unbalance of spool left end and right end, spool slides so that the hydraulic oil that oil inlet is entered valve body by the aperture size change of drain tap lets out oil return bottom case.Hydraulic gear-shifting system with flow stabilization apparatus is by setting oil pressure to compare the stabilization that valve is effectively guaranteed hydraulic fluid flow rate in shifting system, oil pressure compares valve and the oil pressure in shifting system is adjusted in real time, ensure the reliable of gear shift operation, drive safety improves.
Description
Technical field
The utility model is related to the hydraulic gear-shifting systems with flow stabilization apparatus.
Background technology
As people require shift quality higher and higher, the dynamic power shift gear box application in engineering machinery at home
Also it is more and more universal.The key property of dynamic power shift gear box is exactly shift gears stationarity and rapidity, is delayed mainly by hydraulic gear-shifting
Valve control shift clutch is rushed to ensure.In the prior art, the control of clutch or brake not only needs control valve control of shifting gears
Liquefaction road, it is also necessary to which solenoid valve control is shifted gears control valve, causes control system component more and system complex.If in addition, oil circuit
Upper instability of flow, can cause the parts that need to be lubricated then can performance it is unstable, lead to the hydraulic performance decline of speed changer entirety.
Utility model content
It is simple and oil circuit stability of flow the technical problem to be solved by the utility model is to provide a kind of oil circuit that there is stream
Measure the hydraulic gear-shifting system of stabilising arrangement.
In order to solve the above technical problems, the technical solution of the utility model is：Hydraulic gear-shifting with flow stabilization apparatus
System, including shift module, the shift module includes several brakes and clutch, and the brake and the clutch lead to
It crosses working connection to connect with pump oil module, further includes several solenoid valves for controlling the brake and clutch respectively；The main oil
Road is equipped with the lubrication branch of oil cooler and cooling and lubricating parts；It further includes oil pressure and compares valve, the oil pressure compares valve and is equipped with
Valve body and spool, the left and right ends of the spool connect respectively with the oil cooler oil outlet and the oil inlet for lubricating branch
It is logical, drain tap and the oil inlet connected with oil pump out of the mouth are additionally provided on the valve body；The oil pressure in oil cooler exit, lubrication
The oil pressure collective effect of oil pressure and oil pump out of the mouth at branch on the spool, wherein, the hydraulic oil in oil cooler exit
Apply thrust to the right in the left end of the spool, lubricate hydraulic oil at branch and apply pushing away to the left in the right end of the spool
Power, the hydraulic oil that oil inlet enters also gives the thrust that the spool is moved to the left it, when the stress of spool left end and right end
When uneven, the spool slides so that the hydraulic oil that oil inlet is entered valve body by the aperture size change of drain tap lets out oil return bottom
Shell.
As preferred technical solution, energy-storaging spring is additionally provided between the left end of the spool and the valve body.
As preferred technical solution, mechanical pump, electric pump and mechanical selector valve, the machinery selector valve control institute are further included
State that mechanical pump is connected with working connection and the electric pump is connected with lubricant passage way；The opening end and mechanical pump of the machinery selector valve
Oil outlet connection.
As preferred technical solution, the solenoid valve includes electromagnetic coil and valve body, and the valve body is equipped with first and adjusts
Port, second adjust port, normally opened port and overflow port；Under the electromagnetic coil off-position, described second adjusts port
In opening, the first adjusting port is closed；The electromagnetic coil is powered, described first adjust port and
Described second adjusts port aperture size realizes that the different oil pressure in normally opened port is defeated with the size of current adjustment of the electromagnetic coil
Go out.
As preferred technical solution, the shift module includes the first brake B1, second brake B2, third braking
Device B3, first clutch C1 and second clutch C2, the solenoid valve include the first electromagnetism for controlling the first brake B1
Valve B1_cv；Control the second solenoid valve B2_cv of the second brake B2；Control the third electromagnetism of the third brake B3
Valve B3_cv；Control the 4th solenoid valve C1_cv of the first clutch C1；Control the 5th electromagnetism of the second clutch C2
Valve C2_cv；
Wherein, the second adjusting port of the first solenoid valve B1_cv is connected with the working connection, and first, which adjusts port, connects
Oil-piping is taken back, normally opened port is connected with the first brake B1；
The first adjusting port of the 5th solenoid valve C2_cv is connected with the working connection, and the second adjusting port connects back to
Oil-piping, normally opened port are connected with the second clutch C2；
The second of the third solenoid valve B3_cv adjusts port and includes first port and second port, first port and institute
Working connection connection is stated, second port is connected with the first adjusting port of second solenoid valve B2_cv；First adjusting port connects back to oil
Pipeline, normally opened port are connected with the first brake B3；
The second adjusting port of the second solenoid valve B2_cv connects back to oil-piping；Normally opened port and the described first braking
Device B2 is connected；
The first adjusting port of the 4th solenoid valve C1_cv is connected with the working connection, and the second adjusting port connects back to
Oil-piping, normally opened port are connected with the second clutch C1.
As preferred technical solution, the working connection is equipped with several accumulators.
By adopting the above-described technical solution, the hydraulic gear-shifting system with flow stabilization apparatus, set at oil pump out of the mouth
Put oil pressure and compare valve, oil pressure compare valve from oil circuit three at take oil pressure, be the oil pressure in oil cooler exit respectively, at lubrication branch
Oil pressure and oil pump out of the mouth at oil pressure；Wherein, from the hydraulic oil in oil cooler exit the left end of the spool apply to
Right thrust lubricates the hydraulic oil at branch and applies thrust to the left, the hydraulic oil that oil inlet enters in the right end of the spool
Also the thrust that the spool is moved to the left it is given, when the force unbalance of spool left end and right end, the spool slides
And then change the aperture size of drain tap.When oil mass is more than preset flow on oil circuit, the aperture of drain tap is big, fuel pump outlet
Excessive oil is back to through drain tap in oil sump, avoids flowed fluctuation on working connection, ensure that the performance of the oily component of use
Stablize.
Description of the drawings
It in order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, before not making the creative labor property
It puts, can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is the hydraulic schematic diagram of pump oil module in the utility model embodiment；
Fig. 2 is the hydraulic schematic diagram of shift module in the utility model embodiment；
Fig. 3 is the schematic diagram of solenoid valve in the utility model embodiment；
Fig. 4 is the shift logic figure of the utility model.
Specific embodiment
As depicted in figs. 1 and 2, there is the hydraulic gear-shifting system of flow stabilization apparatus, the working connection is equipped with oil cooler
15 and the lubrication branch 17 of cooling and lubricating parts；The pump oil module compares valve 8 equipped with oil pressure, and the oil pressure compares valve 8 and sets
There are valve body and spool, valve body is equipped with the first port 9 connected with oil cooler oil outlet, is connected at the oil inlet with lubrication branch
Second port 10, the third port 12 connected with oil pump out of the mouth and by drain tap 11.First port 9 and second port 10
It is located at the left and right ends of the spool respectively.Oil pressure and oil inlet at the oil pressure in 15 exit of oil cooler, lubrication branch 17
Oil pressure collective effect on the spool, wherein, from the hydraulic oil in 15 exit of oil cooler the left end of the spool apply to
Right thrust lubricates the hydraulic oil at branch 17 and applies thrust to the left, the hydraulic pressure that oil inlet enters in the right end of the spool
Oil also gives the thrust that the spool is moved to the left it, and when the force unbalance of spool left end and right end, the spool is slided
Aperture size that is dynamic and then changing drain tap.The excessive oil mass that oil pump can be pumped out by comparing valve 8 by oil pressure passes through drain tap 11
Oil sump is flowed back to, stablizes the flow of hydraulic oil in shifting system.Further, between the left end of the spool and the valve body also
Equipped with energy-storaging spring, energy-storaging spring maintains the closing of drain tap 11.
Pump oil module includes mechanical pump 7, electric pump 13 and mechanical selector valve 14, and the machinery selector valve 14 controls the machinery
Pump 7 is connected with working connection g and the electric pump 13 is connected with lubricant passage way f；The opening end and machinery of the machinery selector valve 14
The oil outlet connection of pump 7.
Further include shift module, the shift module includes several brakes and clutch, the brake and it is described from
Clutch is connected by working connection g with pump oil module, further includes several solenoid valves for controlling the brake and clutch respectively.Such as
Shown in Fig. 3, the solenoid valve includes electromagnetic coil 2 and valve body 1, and the valve body 1 is equipped with first and adjusts port 3, the second adjustable side
Mouth 4, normally opened port 5 and overflow port 6；Under the electromagnetic coil off-position, the second adjusting port 4 is in opening state
State, the first adjusting port 3 are closed；The electromagnetic coil 2 is powered, and described first adjusts port 3 and described the
Two adjust 4 aperture size of port realizes that the different oil pressure in normally opened port 5 exports with the size of current adjustment of the electromagnetic coil 2.
The shift module include the first brake B1, second brake B2, third brake B3, first clutch C1 and
Second clutch C2, the solenoid valve include the first solenoid valve B1_cv for controlling the first brake B1；Control described second
The second solenoid valve B2_cv of brake B2；Control the third solenoid valve B3_cv of the third brake B3；Control described first
The 4th solenoid valve C1_cv of clutch C1；Control the 5th solenoid valve C2_cv of the second clutch C2；Wherein, described first
The second adjusting port of solenoid valve B1_cv is connected with the working connection g, and the first adjusting port connects back to oil-piping, normally opened port
It is connected with the first brake B1；The first adjusting port of the 5th solenoid valve C2_cv is connected with the working connection g, the
Two adjusting ports connect back to oil-piping, and normally opened port is connected with the second clutch C2；The of the third solenoid valve B3_cv
Two, which adjust port, includes first port and second port, and first port is connected with the working connection g, second port and the second electromagnetism
The first of valve B2_cv adjusts port connection；First adjusting port connects back to oil-piping, normally opened port and the first brake B3
Connection；The second adjusting port of the second solenoid valve B2_cv connects back to oil-piping；Normally opened port and the first brake B2
Connection；The first adjusting port of the 4th solenoid valve C1_cv is connected with the working connection g, and the second adjusting port connects back to oil
Pipeline, normally opened port are connected with the second clutch C1.As shown in figure 4, the shift logic of hydraulic system, speed changer is in
During gear, second brake B2 and second clutch C2 actions；In driving process, when speed changer is in a gear, the first brake B1
It is acted with second brake B2；When speed changer is in two gears, the first brake B1 and third brake B3 actions；Speed changer is in
During three gears, the first brake B1 and second clutch device C2 actions；Speed changer be in four gear when, the first brake B1 and first from
Clutch device C1 is acted；When speed changer is in five gears, first clutch C1 and second clutch device C2 actions；Speed changer is in six gears
When, third brake B3 and first clutch device C1 are acted.
The working connection g is equipped with several accumulators 18, and it is used to store extra pressure oil, and be released to when needed
System.When Hydraulic Power Transmission System needs, the pressure fluid stored by accumulator 18 is released under the effect of its loading device
Come, be transported in hydraulic gear-shifting system and go work；And when working solution is excessive in hydraulic gear-shifting system, these extra liquid are again
The active force of loading device can be overcome, stored into accumulator 18.
The advantages of basic principle, main feature and the utility model of the utility model has been shown and described above.One's own profession
The technical staff of industry is it should be appreciated that the present utility model is not limited to the above embodiments, described in above embodiments and description
Only illustrate the principle of the utility model, on the premise of not departing from the spirit and scope of the utility model, the utility model is also
Various changes and modifications are had, these various changes and improvements fall within the scope of the claimed invention.The utility model
Claimed range is defined by the appending claims and its equivalent thereof.
Claims (6)
1. the hydraulic gear-shifting system with flow stabilization apparatus, it is characterised in that：Including shift module, the shift module includes
Several brakes and clutch, the brake and the clutch are connected by working connection with pump oil module, are further included several
The solenoid valve of the brake and clutch is controlled respectively；The working connection is equipped with the profit of oil cooler and cooling and lubricating parts
Sliding branch；Further include oil pressure and compare valve, the oil pressure compares valve equipped with valve body and spool, the left and right ends of the spool respectively with
The oil cooler oil outlet is connected with the oil inlet of the lubrication branch, and drain tap is additionally provided on the valve body and is gone out with oil pump
The oil inlet of hydraulic fluid port connection；The oil pressure of oil pressure and oil pump out of the mouth at the oil pressure in oil cooler exit, lubrication branch is made jointly
With on the spool, wherein, the hydraulic oil in oil cooler exit applies thrust to the right, lubrication branch in the left end of the spool
Hydraulic oil at road applies thrust to the left in the right end of the spool, and the hydraulic oil that oil inlet enters, which also gives the spool, to be made
Its thrust being moved to the left, when the force unbalance of spool left end and right end, the spool slides the aperture so that drain tap
The hydraulic oil that oil inlet is entered valve body by size change lets out oil return bottom case.
2. there is the hydraulic gear-shifting system of flow stabilization apparatus as described in claim 1, it is characterised in that：A left side for the spool
Energy-storaging spring is additionally provided between end and the valve body.
3. there is the hydraulic gear-shifting system of flow stabilization apparatus as claimed in claim 1 or 2, it is characterised in that：Further include machine
Tool pump, electric pump and mechanical selector valve, the machinery selector valve control the mechanical pump connected with working connection and the electric pump and
Lubricant passage way connects；The opening end of the machinery selector valve is connected with the oil outlet of mechanical pump.
4. there is the hydraulic gear-shifting system of flow stabilization apparatus as described in claim 1, it is characterised in that：The solenoid valve packet
Electromagnetic coil and valve body are included, the valve body is equipped with first and adjusts port, the second adjusting port, normally opened port and overflow port；Institute
It states under electromagnetic coil off-position, the second adjusting port is in opening, and described first, which adjusts port, is in closing shape
State；The electromagnetic coil is powered, and described first, which adjusts port and described second, adjusts port aperture size with the electromagnetic coil
Size of current adjustment realize the different oil pressure output in normally opened port.
5. there is the hydraulic gear-shifting system of flow stabilization apparatus as claimed in claim 4, it is characterised in that：The shift module
Including the first brake B1, second brake B2, third brake B3, first clutch C1 and second clutch C2, the electricity
Magnet valve includes the first solenoid valve B1_cv for controlling the first brake B1；Control the second electromagnetism of the second brake B2
Valve B2_cv；Control the third solenoid valve B3_cv of the third brake B3；Control the 4th electromagnetism of the first clutch C1
Valve C1_cv；Control the 5th solenoid valve C2_cv of the second clutch C2；
Wherein, the second adjusting port of the first solenoid valve B1_cv is connected with the working connection, and the first adjusting port connects back to
Oil-piping, normally opened port are connected with the first brake B1；
The first adjusting port of the 5th solenoid valve C2_cv is connected with the working connection, and the second adjusting port connects back to oil pipe
Road, normally opened port are connected with the second clutch C2；
The second of the third solenoid valve B3_cv adjusts port and includes first port and second port, first port and the master
Oil communication, second port are connected with the first adjusting port of second solenoid valve B2_cv；First adjusting port connects back to oil pipe
Road, normally opened port are connected with the first brake B3；
The second adjusting port of the second solenoid valve B2_cv connects back to oil-piping；Normally opened port and the first brake B2
Connection；
The first adjusting port of the 4th solenoid valve C1_cv is connected with the working connection, and the second adjusting port connects back to oil pipe
Road, normally opened port are connected with the second clutch C1.
6. there is the hydraulic gear-shifting system of flow stabilization apparatus as described in claim 1, it is characterised in that：On the working connection
Equipped with several accumulators.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721678391.8U CN207598900U (en) | 2017-12-06 | 2017-12-06 | Hydraulic gear-shifting system with flow stabilization apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721678391.8U CN207598900U (en) | 2017-12-06 | 2017-12-06 | Hydraulic gear-shifting system with flow stabilization apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207598900U true CN207598900U (en) | 2018-07-10 |
Family
ID=62762398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721678391.8U Withdrawn - After Issue CN207598900U (en) | 2017-12-06 | 2017-12-06 | Hydraulic gear-shifting system with flow stabilization apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207598900U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107816541A (en) * | 2017-12-06 | 2018-03-20 | 盛瑞传动股份有限公司 | Hydraulic gear-shifting system with flow stabilization apparatus |
| CN109578352A (en) * | 2019-01-28 | 2019-04-05 | 徐工消防安全装备有限公司 | Load sensitive system and aerial work platform |
-
2017
- 2017-12-06 CN CN201721678391.8U patent/CN207598900U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107816541A (en) * | 2017-12-06 | 2018-03-20 | 盛瑞传动股份有限公司 | Hydraulic gear-shifting system with flow stabilization apparatus |
| CN107816541B (en) * | 2017-12-06 | 2023-01-13 | 盛瑞传动股份有限公司 | Hydraulic shifting system with flow stabilizing device |
| CN109578352A (en) * | 2019-01-28 | 2019-04-05 | 徐工消防安全装备有限公司 | Load sensitive system and aerial work platform |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180710 Effective date of abandoning: 20230113 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20180710 Effective date of abandoning: 20230113 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |