CN209688055U - The integral type switching device of pump hydraulic system operating mode - Google Patents
The integral type switching device of pump hydraulic system operating mode Download PDFInfo
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- CN209688055U CN209688055U CN201920214158.7U CN201920214158U CN209688055U CN 209688055 U CN209688055 U CN 209688055U CN 201920214158 U CN201920214158 U CN 201920214158U CN 209688055 U CN209688055 U CN 209688055U
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Abstract
A kind of integral type switching device of pump hydraulic system operating mode, it include: side valve type bi-bit bi-pass reversal valve and the first check valve, wherein: the arrival end of bi-bit bi-pass reversal valve is connected with oil sources, control terminal is connected with working connection, cooling oil output end is connected with cooling and lubricating oil circuit, and the first check valve is set between the oil outlet of working connection and working connection.The simple designs that the utility model is combined using spool and check valve, avoid the dead zone in handoff procedure, avoid electronic pump from overload, the concussion of elimination system occur, while reducing the energy consumption of hydraulic system.
Description
Technical field
The utility model relates to a kind of technology of automobile hydraulic control field, specifically a kind of pump hydraulic system work
The integral type switching device of operation mode.
Background technique
Since environmental pollution is got worse, research and development are puted forth effort by major motor corporation can be improved the dynamical system of fuel economy
System, wet-type double-clutch automatic speed-change device become existing by feat of high transmission efficiency, high driver comfort and low burn specific oil consumption
The object that stage major Automobile Enterprises are studied one after another.Wet type double-clutch automatic gearbox hydraulic system in the market is divided into single pump side
Case and double pump scheme, single pump scheme is the mechanical pump that is driven by engine or its related organization come for hydraulic system fuel feeding, double
Pump scheme is to increase an electronic oil pump on the basis of singly pump, and electronic oil pump is driven by motor, can according to need in main oil
Switch between road and cooling and lubricating oil circuit, and to realize the switching of oil circuit, it must setting switching device.The double clutches of existing wet type are certainly
Dynamic speed changer pump hydraulic system realizes switching using single two-bit triplet slide valve, and slide valve is controlled by working connection pressure, the oil pump
In operating mode switching, there are dead zones.In dead zone, two electronic pump oil liquid outlets are blocked by spool, cause oil liquid nowhere
Release constantly forms instantaneous high pressure after accumulation, causes oil pump overload, hydraulic system unstable.
Utility model content
The utility model In view of the above shortcomings of the prior art, proposes the one of a kind of pump hydraulic system operating mode
Body formula switching device realizes operating mode switching by the combination of slide valve and check valve.
The utility model is achieved through the following technical solutions:
The utility model includes: side valve type bi-bit bi-pass reversal valve and the first check valve, in which: bi-bit bi-pass reversal valve
Arrival end is connected with oil sources, and the control terminal of bi-bit bi-pass reversal valve is connected with working connection, cooling oil output end and cutting oil
Road is connected, and the first check valve is set between the oil outlet of working connection and working connection.
It is unidirectional that second is preferably provided between the cooling oil output end and cooling and lubricating oil circuit of the bi-bit bi-pass reversal valve
Valve, when bi-bit bi-pass reversal valve is in right position, electronic pump oil liquid is connected to after passing through second one-way valve with cooling and lubricating oil circuit；When
When bi-bit bi-pass reversal valve is in left position, electronic pump oil liquid is connected to after passing through the first check valve with working connection.
The oil sources includes fuel tank interconnected and pump group.
The pump group includes: mechanical pump and electronic pump, in which: the outlet of mechanical pump is connected with working connection, electronic pump with
The arrival end of bi-bit bi-pass reversal valve is connected.
It is preferably provided with second one-way valve between the arrival end of the electronic pump and bi-bit bi-pass reversal valve, works as bi-bit bi-pass
When reversal valve is in right position, electronic pump oil liquid after second one-way valve with the cooling and lubricating oil circuit of bi-bit bi-pass reversal valve by connecting
It is logical；When bi-bit bi-pass reversal valve is in left position, electronic pump oil liquid is connected to after passing through the first check valve with working connection.
Throttle valve is preferably provided between the control terminal of the working connection and bi-bit bi-pass reversal valve to realize to two two
The control of logical reversal valve.
Filter is equipped between the fuel tank and pump group.
The bi-bit bi-pass reversal valve includes: the fixing end being set in valve casing, spring and spool, in which: spring position
Between spool and fixing end and provide elastic force.
Technical effect
Compared with prior art, the simple designs that the utility model is combined using spool and check valve, avoid and switched
Dead zone in journey avoids electronic pump from overload, the concussion of elimination system occur, while reducing the energy consumption of hydraulic system.
Detailed description of the invention
Fig. 1 is 1 structural schematic diagram of the utility model embodiment；
Fig. 2 is 2 structural schematic diagram of the utility model embodiment；
Fig. 3 is the schematic diagram in the utility model application；
Lead to working connection, the state diagram that cooling oil output end is blocked in figure for oil liquid；
Fig. 4 is the schematic diagram in the utility model application；
The state diagram opened simultaneously is corrected in figure for slide valve oil outlet and cooling oil output；
In figure: pump group 1, the first check valve 2, bi-bit bi-pass reversal valve 3, second one-way valve 4, electronic pump 5, filter 6, oil
Case 7, mechanical pump 8, slide valve control oil circuit 9, throttle valve 10, arrival end 11, cooling oil output end 12, control terminal 13, working connection 14,
Cooling and lubricating oil circuit 15, the first one-way valve seat 16, the first check valve steel ball 17, the first one-way valve spring 18, valve casing 19, spool
20, slide valve spring 21, plug 22, baffle 23, valve rod 24, first step 25, second step 26.
Specific embodiment
Embodiment 1
As shown in Figure 1, the present embodiment includes: the first check valve 2 and bi-bit bi-pass reversal valve 3, in which: arrival end 11 and mistake
Filter 6 is connected with fuel tank 7, and control terminal 13 is connected with working connection 14, and cooling oil output end 12 is connected with cooling and lubricating oil circuit 15,
First check valve 2 is set between the oil outlet of working connection 14 and working connection 14.
The oil sources includes fuel tank 7 interconnected and pump group 1.
The pump group 1 includes: mechanical pump 8 and electronic pump 5, in which: the outlet of mechanical pump 8 is connected with working connection 14, electricity
Son pump 5 is connected with the arrival end of bi-bit bi-pass reversal valve 3 and working connection 14 respectively by second one-way valve 4.
The slide valve control oil circuit 9 of the working connection 14 is connected with control terminal 13 by throttle valve 10 to realize to two two
The control of logical reversal valve 3.
Filter 6 is equipped between the fuel tank 7 and pump group 1.
First check valve 2 and slide valve bi-bit bi-pass reversal valve 3 is preferably integrated is set in valve casing 19.
Arrival end 11, cooling oil output end 12, control terminal 13 and cooling and lubricating oil circuit 15 are equipped in the valve casing 19.
The bi-bit bi-pass reversal valve 3 includes: the baffle 23 being fixedly installed in valve casing 19 and plug 22 and activity
The slide valve spring 21 and spool 20 being set in valve casing 19, in which: slide valve spring 21 is between spool 20 and plug 22 and mentions
For elastic force.
When bi-bit bi-pass reversal valve 3 is in right position, 5 oil liquid of electronic pump after second one-way valve 4 with bi-bit bi-pass by changing
It is connected to the cooling and lubricating oil circuit of valve 3；When bi-bit bi-pass reversal valve 3 is in left position, 5 oil liquid of electronic pump is unidirectional by first
It is connected to after valve 2 with working connection 14.
The spool 20 includes the valve rod 24 for separating the two of access steps and being in contact with plug 22, in which:
First step 25 positioned at end is connect with the control terminal of bi-bit bi-pass reversal valve 3 to realize the movement of spool 20 and control arrival end
11 on-off, on-off of the second step 26 for realizing cooling oil output end 12 positioned at middle part, first step 25 and second
It is conducting region between rank 26.
In the first step 25 along with 12 amount of blocking L1 of cooling oil output end when slide valve spring 21 pre-tightens for 1~
1.5mm, when electronic pump 5 supports working connection 14, slide valve spring 21 makes arrival end 11 and cooling oil defeated under 14 pressure of working connection
Outlet 12 is connected to, at this time aperture ruler of control while with cooling oil output end left side controls on valve plate 19 on the left of slide valve second step
Very little L2 is greater than 1~1.2mm.
As shown in figure 3, the first check valve 2 includes: that the first one-way valve seat 16, the first check valve steel ball 17 and first are unidirectional
Valve spring 18, in which: the first check valve steel ball 17 is set to the top of the first one-way valve seat 16, the first one-way valve spring 18
It is set between the first check valve steel ball 17 and the first one-way valve seat 16.
Above-mentioned apparatus works in the following manner:, can when 14 pressure of working connection is lower than the switching pressure that spool 20 designs
To be adjusted according to design requirement by the way that the rigidity of slide valve spring 21 is arranged.
As shown in figure 4, arrival end 11 is connected to cooling and lubricating oil circuit 15, it is connected in arrival end 11 with cooling and lubricating oil circuit 15
Moment, arrival end 11 is connected to simultaneously with cooling oil output end 15 and working connection 14.If without second one-way valve 4, working connection 14
Oil can enter cooling and lubricating oil circuit 15 by spool 20, cause 20 position oscillation of spool and main oil pressure to vibrate, due to working connection
14 oil outlets are high-pressure mouths, and 15 oil outlet of cooling and lubricating oil circuit is low pressure port, and second one-way valve 4 can be in the wink of two outlets
Between high-pressure mouth is closed, oil liquid only from 15 oil outlet of cooling and lubricating oil circuit flow out.14 pressure of working connection is less than two under reset condition
Position two way selected valve 3 acts threshold pressure, and the oil liquid that electronic pump 5 pumps out enters arrival end 11, due to 12 quilt of cooling oil output end
Spool 20 blocks, and oil liquid can only flow to the first check valve 2 on working connection 14 by arrival end 11, then by the first check valve 2
It opens, eventually enters into working connection 14.With the continuous rising of 14 pressure of working connection, reaches spool 20 and act threshold pressure, in master
The control bottom spool 20 of 14 pressure of oil circuit moves to right, it is therefore an objective to which the outlet oil circuit of electronic pump 5 is switched to cooling profit from working connection 14
15 mode of lubricating oil road.
Embodiment 2
As shown in Fig. 2, the position of second one-way valve 4 is in addition to being set to electronics pump discharge (as shown in Figure 1), it can also be such as this
It is arranged between bi-bit bi-pass reversal valve 3 and cooling and lubricating oil circuit 15 in embodiment.
As shown in Fig. 2, arrival end 11 is not connected to cooling and lubricating oil circuit 15, and second one-way valve 4 is opened since L1 is greater than zero
It opening, electronic pump 5 is used to support working connection 14, when the oil pressure of working connection 14 is increased to setting value (formulating according to design requirement),
Hydraulic system is switched to 15 operating mode of cooling and lubricating oil circuit from 14 operating mode of working connection.
Compared with prior art, the utility model utilizes simple 2/2-way valve arrangement, avoids using two-position three-way valve,
Under the premise of meeting function and performance, valve plate space layout is saved, is had the advantages of simple structure and easy realization.
Above-mentioned specific implementation can by those skilled in the art under the premise of without departing substantially from the utility model principle and objective with
Different modes carries out local directed complete set to it, and the protection scope of the utility model is subject to claims and not by above-mentioned specific
Implementation is limited, and each implementation within its scope is by the constraint of the utility model.
Claims (6)
1. a kind of integral type switching device of pump hydraulic system operating mode characterized by comprising side valve type bi-bit bi-pass
Reversal valve and the first check valve, in which: the arrival end of bi-bit bi-pass reversal valve is connected with oil sources, the control of bi-bit bi-pass reversal valve
End is connected with working connection, and cooling oil output end is connected with cooling and lubricating oil circuit, and the first check valve is set to the oil outlet of working connection
Between working connection；
The bi-bit bi-pass reversal valve includes: the fixing end being set in valve casing, spring and spool, in which: spring is located at valve
Between core and fixing end and provide elastic force.
2. the integral type switching device of pump hydraulic system operating mode according to claim 1, characterized in that described
Oil sources includes fuel tank interconnected and pump group；The pump group includes: mechanical pump and electronic pump, in which: the outlet of mechanical pump
It is connected with working connection, electronic pump is connected with the arrival end of bi-bit bi-pass reversal valve and working connection respectively by second one-way valve.
3. the integral type switching device of pump hydraulic system operating mode according to claim 2, characterized in that described
Filter is equipped between fuel tank and pump group.
4. the integral type switching device of pump hydraulic system operating mode according to claim 1, characterized in that described
Branch's oil circuit of working connection is connected with the control terminal of bi-bit bi-pass reversal valve by throttle valve to realize to bi-bit bi-pass reversal valve
Control.
5. the integral type switching device of pump hydraulic system operating mode according to claim 1, characterized in that described
Spool includes the valve rod for separating the two of access steps and being in contact with plug, in which: positioned at end first step with
The control terminal of bi-bit bi-pass reversal valve is connected to realize that spool acts and control the on-off of electronic pump oil outlet, positioned at the of middle part
Two steps are conducting region between first step and second step for realizing the on-off of cooling oil output end.
6. the integral type switching device of pump hydraulic system operating mode according to claim 5, characterized in that described
Along being 1~1.5mm in spring pre-tightening with the cooling oil output end amount of blocking L1 in first step, working connection is supported in electronic pump
When, spring is connected to electronic pump oil outlet with cooling oil output end, and L2 is greater than 1~1.2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920214158.7U CN209688055U (en) | 2019-02-20 | 2019-02-20 | The integral type switching device of pump hydraulic system operating mode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920214158.7U CN209688055U (en) | 2019-02-20 | 2019-02-20 | The integral type switching device of pump hydraulic system operating mode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209688055U true CN209688055U (en) | 2019-11-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920214158.7U Active CN209688055U (en) | 2019-02-20 | 2019-02-20 | The integral type switching device of pump hydraulic system operating mode |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115574078A (en) * | 2022-12-08 | 2023-01-06 | 盛瑞传动股份有限公司 | Oil path control device, oil path system and vehicle |
| CN115875438A (en) * | 2023-03-03 | 2023-03-31 | 北京航空航天大学 | Active accurate cooling and lubricating distribution structure of hybrid transmission system and control method |
-
2019
- 2019-02-20 CN CN201920214158.7U patent/CN209688055U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115574078A (en) * | 2022-12-08 | 2023-01-06 | 盛瑞传动股份有限公司 | Oil path control device, oil path system and vehicle |
| CN115875438A (en) * | 2023-03-03 | 2023-03-31 | 北京航空航天大学 | Active accurate cooling and lubricating distribution structure of hybrid transmission system and control method |
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