CN101504064A - Variable piston type hydraulic continuously variable transmission - Google Patents
Variable piston type hydraulic continuously variable transmission Download PDFInfo
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- CN101504064A CN101504064A CNA2009100378669A CN200910037866A CN101504064A CN 101504064 A CN101504064 A CN 101504064A CN A2009100378669 A CNA2009100378669 A CN A2009100378669A CN 200910037866 A CN200910037866 A CN 200910037866A CN 101504064 A CN101504064 A CN 101504064A
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Abstract
The invention discloses a variable piston type hydraulic stepless transmission, which comprises a variable container and a transmission. The variable container comprises a push rod, an oil tank and a rail way used for bearing the oil tank, wherein the push rod is connected with the oil tank, and a baffle plate and a telescopic partition board which divides the oil tank into a front cavity and a rear cavity mutually independent are arranged in the oil tank; one end of the partition board is matched with the inner wall of the oil tank, and the other end of the partition board can vertically stretch and move; one end of the baffle plate is connected with one telescopic end of the partition board, and the other end of the baffle plate keeps oil sealing with the inner wall of the oil tank; and the front cavity and the back cavity of the oil tank are connected with an oil outlet pipe respectively, each oil outlet pipe is divided into two branches which are connected with a positive one-way valve and a negative one-way valve, the two branches connected with the positive one-way valve are connected in parallel, the two branches connected with the negative one-way valve are connected in parallel, then the branches are connected with two ports of a two-position four-way electromagnetic valve respectively, and another two ports of the two-position four-way electromagnetic valve are connected with the transmission through drainage tubes to form oil circulation. The transmission has a simple structure and lower cost.
Description
Technical field
The present invention relates to a kind of variable piston type hydraulic continuously variable transmission.
Technical background
Along with developing of automobile industry, the manual gear gearbox is replaced by automatic transmission.Be widely used in the automatic transmission of automobile at present, form by fluid torque converter and hydraulic control speed changer.By a plurality of slave cylinders in the gearbox, control different engagements and realize speed change.The control system complex structure of this automatic transmission, the maintenance requirement height can not be realized stepless change.And existing stepless speed variator has only three kinds of v-belt stepless speed variator, steel band speed changer and chain stepless speed variators, v-belt stepless speed variator, and transmitting torque is limited, only is applicable to motorcycle; And steel band and chain speed changer, its driving parts is a steel part, mechanism must be placed lubricant oil, but it is again to lean on the friction of steel band or chain and wheeled steel to come transmitting torque, skids easily, influences working efficiency.Employed mechanical continuously-variable transmission has bipyramid face wheel metal band type on the car of Japan, the wheeled comparatively statement of taper cone pulley friction, but the former manufacturing is very difficult, and cost is higher, latter's complex structure.
Summary of the invention
The technical problem to be solved in the present invention is to overcome the deficiencies in the prior art, and a kind of variable piston type hydraulic continuously variable transmission simple in structure, lower-cost is provided.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is: a kind of variable piston type hydraulic continuously variable transmission, comprise variodenser and speed changer, it is characterized in that, described variodenser comprises push rod, fuel tank and the track that is used to carry fuel tank, push rod is connected with fuel tank, is provided with the telescopic isolating plate and the baffle plate that fuel tank are separated into separate ante-chamber and back cavity in the fuel tank; One end of isolating plate matches with inner wall of oil tank, and the other end is telescopic movable along the vertical direction; One end of baffle plate is connected with an end of isolating plate telescopic action, and the other end and inner wall of oil tank keep oil seal; The ante-chamber of described fuel tank and back cavity are connected with oil outlet tube respectively, each oil outlet tube is divided into two branch roads and is connected with forward and reverse one-way valve respectively, be connected with two branch road parallel connections of forward one-way valve, be connected with two branch road parallel connections of reverse one-way valve, link to each other with two ports of two-position four-way solenoid valve respectively then, two other port of two-position four-way solenoid valve is connected to form the oil circulation by catheter and speed changer.
Be provided with guide plate between described isolating plate and the baffle plate, an end of isolating plate telescopic action is fixed on the top of guide plate, and the upper end of baffle plate is fixed on the bottom of guide plate; The wall of fuel tank is provided with guiding groove, and guide plate and baffle plate one are along the upper and lower slip of guiding groove.
The described train of reduction gears of being made up of intermeshing input gear and reduction gear drives reciprocating.
As a further improvement on the present invention: described speed changer is an oil hydraulic motor, comprises cylinder body, is arranged on the rotor in the cylinder body, be connected epitrochanterian rotating shaft, the two ends up and down of cylinder body are respectively equipped with baffle plate, are set with spring on the baffle plate, and the front end of baffle plate is provided with the seal ring that cooperatively interacts with rotor; Be provided with the plate that cooperatively interacts by the inclined-plane in the outside of cylinder body and by device, described plate is fixedlyed connected with the upper end of baffle plate, describedly fixedly connected with rotating shaft by device.Described plate is for falling isosceles trapezoid.
Further improve as of the present invention, described rotor is provided with fan-shaped bump, the inwall sliding contact of its fan-shaped end face and cylinder body.The bi-side of described fan-shaped bump are respectively equipped with liquid outlet, and described liquid outlet is communicated with catheter respectively.Be connected with accelerating gear in the described rotating shaft, accelerating gear is meshed with output gear.
The working principle of this speed changer is to move right when motor is pushing away fuel tank with power by push rod, baffle plate extrudes the hydraulic oil of fuel tank ante-chamber, flow into oil hydraulic motor through one-way cock and two-position four-way solenoid valve 9, by scrobicular ring above the oil hydraulic motor rotating shaft and the oil outlet ejection of the catheter that is attached thereto from rotor, the one side that makes " V " shape rubber bumper closely contacts with rotor and plays the effect of sealing, simultaneously because rotor is being tried hard to recommend in the reaction of lower pedal rotates counterclockwise, when forwarding to when contacting with the inclined-plane of plate, move up or down and make rotor pass through baffle plate thereby pushing away plate and baffle plate one by device.The speed change of this speed changer is by the upper-lower position of change baffle plate, thereby the lifting rate that changes it is realized stepless change.With respect to prior art, it is simple in structure, and cost is lower.
Description of drawings
Below in conjunction with the drawings and specific embodiments variable piston type hydraulic continuously variable transmission of the present invention is further described:
Fig. 1 is the structure diagram of variable piston type hydraulic continuously variable transmission of the present invention;
Fig. 2 is the sectional view of oil hydraulic motor rotor position among Fig. 1;
Fig. 3 is Fig. 1 mesoplate and the schematic representation that cooperates by device;
Fig. 4 is for promoting to move on on the plate schematic representation of extreme higher position by device among Fig. 3.
Embodiment
To the variable piston type hydraulic continuously variable transmission of the present invention shown in the accompanying drawing 4, comprise the variodenser of front half part and the speed changer of latter half part as accompanying drawing 1.Variodenser comprises push rod 23, fuel tank 21 and the track 24 that is used to carry fuel tank 21, one end of push rod 23 is connected with fuel tank 21, the other end oil input gear 1 drives fuel tank 21 along track 24 to-and-fro motion through reduction gear 2 deceleration rear-guards action straight reciprocating motion (can utilize the worm and gear structure).Be provided with the telescopic isolating plate 3 and the baffle plate 6 that fuel tank 21 are separated into separate ante-chamber and back cavity in the fuel tank 21; One end of isolating plate 3 matches with fuel tank 21 inwalls, and the other end is telescopic movable along the vertical direction; Be provided with guide plate 4 between isolating plate 3 and the baffle plate 6, an end of isolating plate 3 telescopic action is fixed on the top of guide plate 4, and the upper end of baffle plate 6 is fixed on the bottom of guide plate 4, and the other end and fuel tank 21 inwalls keep oil seal; The wall of fuel tank 21 is provided with guiding groove 5, and guide plate 4 and baffle plate 6 one are along guiding groove 5 upper and lower slips.
The ante-chamber of fuel tank 21 and back cavity are connected with oil outlet tube respectively, the ante-chamber oil outlet tube is divided into two branch roads and is connected with forward and reverse one-way valve 7b, 7a respectively, the back cavity oil outlet tube is divided into two branch roads and is connected with forward and reverse one-way valve 7d, 7c respectively, be connected with two branch road parallel connections of forward one-way valve 7b, 7d, be connected with two branch road parallel connections of reverse one-way valve 7a, 7c, link to each other with two ports of two-position four-way solenoid valve 9 respectively then, two other port of two-position four-way solenoid valve 9 is connected to form the oil circulation by catheter 12,13 and speed changer.
As accompanying drawing 1, shown in 2, speed changer is an oil hydraulic motor, comprise cylinder body 20, be arranged on the rotor 22 in the cylinder body 20, be connected the rotating shaft 8 on the rotor 22, the two ends up and down of cylinder body 20 are respectively equipped with overhead gage 10 and lower pedal 11, be set with spring 18 on the upper and lower baffle plate 10,11, the front end of upper and lower baffle plate 10,11 is provided with the seal ring 19 that cooperatively interacts with rotor 22; Be provided with the plate 14 that cooperatively interacts by the inclined-plane in the outside of cylinder body 20 and pass through device 15, plate 14 is for falling isosceles trapezoid, and it is fixedlyed connected with the upper end of overhead gage 10, fixedlys connected with rotating shaft 8 by device 15.Its rotor 22 is provided with fan-shaped bump, the inwall sliding contact of its fan-shaped end face and cylinder body 20.The bi-side of fan-shaped bump are respectively equipped with liquid outlet 12a, 13a, and liquid outlet 12a, 13a are communicated with catheter 1213 respectively.Output terminal in rotating shaft 8 is connected with accelerating gear 16, and accelerating gear 16 is meshed with output gear 17.
Isolating plate 3 among the figure is that stacked by several platelets can telescopic movable, and isolating plate 3, guide plate 4, baffle plate 6 are combined and can be separated the hydraulic oil on both sides, fuel tank 21 front and back and can not convection current.The working procedure of this speed changer is power to be passed through the deceleration of input gear 1 and reduction gear 2 when motor, pushing away fuel tank 21 simultaneously moves right, allow baffle plate 6 that the hydraulic oil in chamber, fuel tank 21 chamber is extruded, flow into oil hydraulic motor through one-way cock 7B and two-position four-way solenoid valve 9, spray from the liquid outlet 13a of rotor 22 by scrobicular ring above the oil hydraulic motor rotating shaft 8 and the catheter 13 that is attached thereto, the one side that makes " V " shape rubber bumper 19 closely contacts with rotor 22 and plays the effect of sealing, simultaneously because rotor is being tried hard to recommend in the reaction of lower pedal 11 rotates counterclockwise, when forwarding (as shown in Figure 3) when contacting with the inclined-plane of plate 14 to, move up or down with overhead gage 10 or lower pedal 11 and make rotor 22 by overhead gage 10 or lower pedal 11 (as shown in Figure 4) thereby pushing away plate 14 by device 15.When the needs speed change, the lifting rate that changes oil box by the upper-lower position that changes baffle plate 6 can be realized.With respect to prior art, variable piston type hydraulic continuously variable transmission of the present invention is simple in structure, and cost is lower.
Claims (8)
1. variable piston type hydraulic continuously variable transmission, comprise variodenser and speed changer, it is characterized in that, described variodenser comprises push rod (23), fuel tank (21) and the track (24) that is used to carry fuel tank, push rod (23) is connected with fuel tank (21), is provided with the telescopic isolating plate (3) and the baffle plate (6) that fuel tank are separated into separate ante-chamber and back cavity in the fuel tank (21); One end of isolating plate (3) matches with inner wall of oil tank, and the other end is telescopic movable along the vertical direction; One end of baffle plate (6) is connected with an end of isolating plate telescopic action, and the other end and inner wall of oil tank keep oil seal; The ante-chamber of described fuel tank and back cavity are connected with oil outlet tube respectively, each oil outlet tube is divided into two branch roads and is connected with forward and reverse one-way valve respectively, be connected with two branch road parallel connections of forward one-way valve, be connected with two branch road parallel connections of reverse one-way valve, link to each other with two ports of two-position four-way solenoid valve respectively then, two other port of two-position four-way solenoid valve is connected to form the oil circulation by catheter and speed changer.
2. variable piston type hydraulic continuously variable transmission according to claim 1 is characterized in that: be provided with guide plate between described isolating plate and the baffle plate, an end of isolating plate telescopic action is fixed on the top of guide plate, and the upper end of baffle plate is fixed on the bottom of guide plate; The wall of fuel tank is provided with guiding groove, and guide plate and baffle plate one are along the upper and lower slip of guiding groove.
3. variable piston type hydraulic continuously variable transmission according to claim 1 is characterized in that: the described train of reduction gears of being made up of intermeshing input gear and reduction gear drives reciprocating.
4. according to each described variable piston type hydraulic continuously variable transmission of claim 1 to 3, it is characterized in that: described speed changer is an oil hydraulic motor, comprise cylinder body, be arranged on the rotor in the cylinder body, be connected epitrochanterian rotating shaft, the two ends up and down of cylinder body are respectively equipped with baffle plate, are set with spring on the baffle plate, and the front end of baffle plate is provided with the seal ring that cooperatively interacts with rotor; Be provided with the plate that cooperatively interacts by the inclined-plane in the outside of cylinder body and by device, described plate is fixedlyed connected with the upper end of baffle plate, describedly fixedly connected with rotating shaft by device.
5, variable piston type hydraulic continuously variable transmission according to claim 4 is characterized in that: described rotor is provided with fan-shaped bump, the inwall sliding contact of its fan-shaped end face and cylinder body.
6, variable piston type hydraulic continuously variable transmission according to claim 5 is characterized in that: the bi-side of described fan-shaped bump are respectively equipped with liquid outlet, and described liquid outlet is communicated with catheter respectively.
7, variable piston type hydraulic continuously variable transmission according to claim 6 is characterized in that: be connected with accelerating gear in the described rotating shaft, accelerating gear is meshed with output gear.
8, variable piston type hydraulic continuously variable transmission according to claim 4 is characterized in that: described plate is for falling isosceles trapezoid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100378669A CN101504064A (en) | 2009-03-12 | 2009-03-12 | Variable piston type hydraulic continuously variable transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100378669A CN101504064A (en) | 2009-03-12 | 2009-03-12 | Variable piston type hydraulic continuously variable transmission |
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| Publication Number | Publication Date |
|---|---|
| CN101504064A true CN101504064A (en) | 2009-08-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009100378669A Pending CN101504064A (en) | 2009-03-12 | 2009-03-12 | Variable piston type hydraulic continuously variable transmission |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016123786A1 (en) * | 2015-02-06 | 2016-08-11 | 韩性峰 | Hydraulic continuously variable transmission |
-
2009
- 2009-03-12 CN CNA2009100378669A patent/CN101504064A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016123786A1 (en) * | 2015-02-06 | 2016-08-11 | 韩性峰 | Hydraulic continuously variable transmission |
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Open date: 20090812 |