CN85107299A - Hydraulic-gear - Google Patents
Hydraulic-gear Download PDFInfo
- Publication number
- CN85107299A CN85107299A CN85107299.2A CN85107299A CN85107299A CN 85107299 A CN85107299 A CN 85107299A CN 85107299 A CN85107299 A CN 85107299A CN 85107299 A CN85107299 A CN 85107299A
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- CN
- China
- Prior art keywords
- motor
- pump
- change
- change part
- displacement
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- Expired - Lifetime
Links
- 230000008859 change Effects 0.000 claims abstract description 40
- 230000007246 mechanism Effects 0.000 claims description 28
- 238000006073 displacement reaction Methods 0.000 claims description 22
- 239000012530 fluid Substances 0.000 claims description 16
- 230000005540 biological transmission Effects 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 244000287680 Garcinia dulcis Species 0.000 claims 2
- 230000008676 import Effects 0.000 claims 1
- 230000009471 action Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 230000003247 decreasing effect Effects 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 230000008520 organization Effects 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Control Of Fluid Gearings (AREA)
Abstract
The present invention is fit to be used as the speed changer of automobile for to combine, can realize infinite variable speed hydraulic-gear by oil hydraulic pump and oil hydraulic motor.In pump and motor, the change part of the speed change of being used for is arranged all separately.Characteristics of the present invention are pump and motor combination are constituted speed change gear, just can make with an operating handle respectively to change the part correct operation.Even the two ends of change part and operating handle can both be leaned on, according to the residing operating position of operating handle a change part in pump or the motor is not in contact with it, thereby realizes various speed changes.
Description
The present invention is used for various industrial machines etc. to change and to transmit the speed changer of rotating speed of the rotating speed in rotary motive power source.
The liquid-type speed changer that the combination of the hydraulic mechanism of oil hydraulic pump and these two kinds of functions reversed of oil hydraulic motor is constituted is realized stepless change, so applied range and obtain extensive studies and exploitation.As the example of this type of hydraulic mechanism, can be formed in the spy and open the rotating fluid energy converter that is published in the clear 58-77179 communique, and the fluid transmission gear that forms by ramp type or bent axis type axial piston pump, motor combination.But existing most cases is, have only the volume-variable of pump, and the capacity of motor fixed, and its slewing range is narrow in this case; In addition, even under all variable situation of pump, each self-capacity of motor, mostly all adopt the mode that changes each self-capacity respectively, result to make its control very complicated.
The present invention has adopted aforesaid hydraulic mechanism, has therefore reached the raising transmission efficiency, can change input and the rotating ratio of exporting, and the purpose of simplifying the hydraulic transmission structure continuously and smoothly.
In the present invention, adopted a plurality of displacement forms to change the hydraulic mechanism of liquid displacement by the such change part (eccentric part) of aforementioned rotating fluid energy converter.As pump, another is as oil hydraulic motor (hereinafter to be referred as motor) with one of this hydraulic mechanism, and the fluid passage of the two is connected to each other, and simultaneously, the control mechanism of may command change part displacement is set.This control mechanism comprise make pump and motor the change part each be close to mechanism towards what a side was close to, and overcome these power of being close to that are close to mechanism and make the actuation mechanism that moves of change part, the end of this actuation mechanism be configured in can be directly or indirectly with the change part position contacting of pump and motor on.This actuation mechanism constitutes by following situation: when it only is in the position that makes the motor capacity keep certain value, and the volume-variable of pump; And the capacity of working as pump keeps one regularly, the volume-variable of motor, and in addition, the present invention also can constitute in the following manner: make the capacity increase and decrease of pump if allow change part displacement, then can allow the change part displacement of motor that the capacity of motor is increased and decreased.
Fig. 1, Fig. 2 and Fig. 5 are the organigram of the embodiment of the invention, and Fig. 3 and Fig. 4 are the explanatory drawing of embodiment's speed change gear control action.
Below by figure embodiments of the invention are described, Fig. 1 is the enforcement illustration of first kind of device provided by the present invention.
(1) and (2) suitable for publishing the rotating fluid transformation of energy of opening in the clear 58-77179 communique in the spy, (1) is pump, (2) are motor.Flywheel moment from rotary motive power source (drawing on the figure) is imported from the turning axle (16) of pump (1), is converted to the hydraulic pressure energy, and the energy through changing is converted to mechanism's energy by motor (2) again, and from turning axle 926) output, drive the device that is connected with this.The structure of rotating fluid energy converter and action have occupied has done detailed introduction in the above-mentioned communique, so only do simple declaration at this.
(11), (13) and (21), (23) are respectively the housing of pump and motor, and the rotating freely turning axle of maintenance (16), (26) are all arranged in above-mentioned housing separately.Also have, can with the turning axle Vertical direction on the vertical shaft (12), an end of (22) that move make conical butt, cylinder body (14), (24) are provided with and above-mentioned garden conical surface approximate vertical and the cylinder hole (15), (25) that cooperate with a plurality of plungers (17), (27); Cylinder body (14), (24) cooperate with the conical surface of vertical shaft and can turn round.
In addition, plunger is inserted in the cylinder body and the energy to-and-fro motion.
Form first hydrostatic bearing (16a) between the part of the conical surface that forms by the internal surface of housing (13) and the excircle conical surface of turning axle (16); Be located at that the turning axle inner surface portion contacts with the plunger end face and plunger (17) end face between have second quiet at bearing (16b).Now, by outside the turning axle of pump applies first, second static bearing of moment, producing the couple that equates with input torque, directly mechanical energy is converted to the fluid energy by this couple by the drive unit of not drawing on long.This fluid can be that high-pressure liquid (not indicating on the figure) by the vertical shaft circular cone being divided into the microscler oil circuit of two parts, is discharged through delivery side of pump (18).This fluid on figure not the oil circuit of picture enter motor filler opening (28), this fluid can pass to output turning axle 926 with couple with the reaction that produces with the said pump start), this couple is by the output of turning axle moment.In addition, the fluid after the acting enters the filler opening (19) of pump by the oil drain out (29) of motor by the oil circuit of not drawing on the figure.In addition, in the oil circuit that between pump, motor, connects, can go into to intersect relief valve as required, pressure charging valve etc., this is a well known fact.
The liquid displacement of pump is the gyration center m by turning axle (16)
1Gyration center n with cylinder barrel
1Skew (offset) d
1And change, and offset d
1Change then and can realize by changing the upright position of the northern scenery on its turning axle central vertical direction.Therefore, vertical shaft possesses the function as eccentric part, above-mentioned d
1The position enough (offset) that can regard vertical shaft (12) as.
Effect by spring (8) makes vertical shaft (12) be close to a certain direction, and by operating bar (4) it is subjected to and the opposite power of spring (8) action direction.Handlebar (3) is housed on operating bar (4), can operates by manual or mechanism's power.
By changing the gyration center n of cylinder body (24)
2Gyration center m with turning axle (26)
2Offset d
2(displacement of vertical shaft (22)) can change the rotating speed with the corresponding motor of liquid (2).Effect by spring (a) is pushed vertical shaft (22) to certain direction, and operating bar (4) then makes it be subjected to and the opposite power of spring (9) action direction.
The housing of the housing of pump (1) and motor (2) is connected to each other by link (5), screw (7), and operating bar (4) can be along link (5) left and right sides to-and-fro motion.Seal with Sealings (6) such as O type circles between operating bar (4) and the housing.
Illustrate one by action (handlebar do momentum) vertical shaft (12) that causes and the displacement (offset) of vertical shaft (22) about operating bar with reference to Fig. 3.When operating bar during in left position (when being O) vertical shaft (12) as momentum pushed to the left position place by operating bar (4) and contact with housing (11).The offset of vertical shaft (12) is-E in the case.The vertical shaft (22) of the opposing party's motor-side is pushed to left end side by spring (9) and is contacted with housing (21) at this moment, has gap (α) between operating bar (4) and the vertical shaft (22), and operating bar is to the no effect of vertical shaft (22).The offset of vertical shaft this moment (22) is+E.
Operating bar is moved right, and vertical shaft (12) is promoted by spring (8) and moves right; And the vertical shaft of opposite side (22) (is α as momentum) before operating bar (4) moves to the position of pushing down vertical shaft (22) will not produce displacement.Vertical shaft (12) its right-hand member with just stop to move after housing contacts, when then operating bar being moved right, vertical shaft (12) just has not been shifted, vertical shaft 922) then is subjected to the promotion displacement to the right (displacement that vertical shaft (12), (22) are both to the right is decided to be positive and negative respectively, regulation be) like this of operating bar (4) in order under the situation of same-sign, to have equidirectional revolution.
Fig. 4 represents revolution when input when being certain value (NO), makes momentum and the variation of the output revolutions that causes by handlebar.Under the plunger diameter of pump and the motor situation identical with number, when handlebar was in sulphur end (actuating quantity is O), revolution was identical on the contrary mutually with the rotating direction of input in the output revolution; When the offset (offset of pump) of vertical shaft (12) when being O, the output revolution also is O.When the offset of pump and motor equated, the output revolution equated with the input revolution, when following again mobile handlebar, and then output revolutions increase.
By shown in Figure 2 the second embodiment of the present invention is illustrated.In the present embodiment, also adopted the rotating fluid enegrgy converter identical, indicated with prosign with the identical person of component part shown in Figure 1 with the 1st embodiment.In first embodiment, pump (1) is configuration side by side with motor (2), then is illustrated in figure 2 as configuration in upright arrangement in the present embodiment, and is connected and fixed by a housing (10).What illustrate among the action of pump (1) and motor (2) and first embodiment is identical, and the offset of vertical shaft (12), (22) then adopts the adjustment of rotary type operating handle.Just, as leaning on spring (8) by separately of the vertical shaft (12) of eccentric part, (22), (9); Simultaneously, by pin (35), (36) by operating handle (37) to pressing down, change offset by rotating operating handle, operating handle to make momentum (amounts of rotation) same as shown in Figure 3 with the relation of the displacement of vertical shaft (12), (22), the variation of output number is same as shown in Figure 4.
Second kind of device provided by the present invention, it constitutes, and the change part of two hydraulic mechanisms is while interlocks, and wherein an example is shown in Figure 5.
Fig. 5 is the situation of O for apparent length α in the device shown in Figure 1.Pump among this figure is identical with the situation of Fig. 1 with the action of motor, will omit its explanation herein.In this device, the displacement by operating bar (4) can make two vertical shafts (12), (22) linkage shifting.Therefore, when the capacity of pump increased and decreased, the capacity of motor is increase and decrease thereupon also, can realize sequence control.Certainly, this second invention equally also can be implemented under the situation of manipulation shank type operation actuation mechanism shown in Figure 2.This situation is two pins (35), (36) and push rod while contact form.
More than formation of the present invention is described, yet, the present invention be not limited to above-mentioned illustrated for example. For example, in illustrated exemplary, only just adopted the rotating fluid energy converter. The hydraulic mechanism that liquid displacement is changed as the displacement by eccentric part is described; Yet, also can adopt other forms of hydraulic mechanism, for example, ramp type, bent axis type axial piston pump, motor. In this case, swash plate, inclined shaft are the change part, by with the above-mentioned the sort of mode that this change part is changed as actuation mechanism, can consist of the speed change gear that can realize with the same level and smooth variable speed operation of above-described embodiment. In addition, make operating bar (4), handlebar (3) and pin (35), (36) and the handlebar (37) of actuation mechanism as the spring that is close to mechanism (8), (9) with as the operation input but be a kind of of embodiment, other modes, such as the cam mode, cam is turned round control also can reach effect same; Even also have concerning handlebar, its operating physical force decapacitation is adopted outside mechanism's modes such as fluid pressure and screw-drive mechanism, also can adopt means of electromagnetic forces.
From above introduction as can be known, hydraulic transmission provided by the present invention has following advantages: adopted the hydraulic mechanism of considerably less swinging energy converter such as energy loss etc. as pump and motor, so the efficient height; Controlling organization of the present invention is simple in structure, can realize level and smooth variable speed operation (infinitely variable speeds) in wide region; Do momentum and the output revolutions of controlling organization are proportional simple relation roughly, and therefore operation is very simple.
Claims (2)
1, hydraulic-gear, change the pump of liquid displacement by the displacement of eccentric or the change part that tilts, combine with the fluid path of oil hydraulic motor, to through the speed change transmission rotation motion of exporting to pump one side input rotation motion from motor one side, it is characterized in that, change part with the said pump of making and motor relies on a side mechanism and operation input actuation mechanism separately, the latter can make the change part of pump and operation import displacement pro rata, when the volume change of pump, can keep the change part of motor to be in certain position makes the motor capacity constant, when the change part that makes pump remains on certain changing position, can be by making the change part displacement of motor pro rata with operation input.
2, hydraulic-gear, change the pump of hydraulic pressure body discharge capacity by the displacement of eccentric or the change part that tilts, combine with the fluid path of oil hydraulic motor, to the rotation motion of exporting to the rotation motion of pump one side from motor one side through the speed change transmission, it is characterized in that, change part with the said pump of making and motor relies on a side mechanism and operation input actuation mechanism separately, when the latter makes change part displacement and makes capacity when increase and decrease of pump, can make the change part displacement of motor simultaneously and make the capacity increase and decrease of motor.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 85107299 CN1017643B (en) | 1985-10-07 | 1985-10-07 | Hydraulic-gear |
| CN 92100195 CN1020790C (en) | 1985-10-07 | 1992-01-10 | Hydraulic variable-speed device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 85107299 CN1017643B (en) | 1985-10-07 | 1985-10-07 | Hydraulic-gear |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92100195 Division CN1020790C (en) | 1985-10-07 | 1992-01-10 | Hydraulic variable-speed device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN85107299A true CN85107299A (en) | 1987-04-15 |
| CN1017643B CN1017643B (en) | 1992-07-29 |
Family
ID=4795560
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 85107299 Expired CN1017643B (en) | 1985-10-07 | 1985-10-07 | Hydraulic-gear |
| CN 92100195 Expired - Fee Related CN1020790C (en) | 1985-10-07 | 1992-01-10 | Hydraulic variable-speed device |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92100195 Expired - Fee Related CN1020790C (en) | 1985-10-07 | 1992-01-10 | Hydraulic variable-speed device |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN1017643B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102090219A (en) * | 2011-01-17 | 2011-06-15 | 江阴市洪腾机械有限公司 | Hydraulic drive traveling device for maize harvesting machine |
| CN102767605A (en) * | 2012-08-02 | 2012-11-07 | 冯宝宝 | Static hydraulic driving device |
| CN108730469A (en) * | 2018-06-20 | 2018-11-02 | 合肥创源车辆控制技术有限公司 | A kind of contiuously variable transmission |
| CN109114188A (en) * | 2018-09-29 | 2019-01-01 | 中国科学院长春光学精密机械与物理研究所 | A kind of hydraulic continuously variable transmission |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2059674B1 (en) * | 2006-09-01 | 2018-08-01 | Clark Equipment Company | Two bolt adjustable centering system |
-
1985
- 1985-10-07 CN CN 85107299 patent/CN1017643B/en not_active Expired
-
1992
- 1992-01-10 CN CN 92100195 patent/CN1020790C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102090219A (en) * | 2011-01-17 | 2011-06-15 | 江阴市洪腾机械有限公司 | Hydraulic drive traveling device for maize harvesting machine |
| CN102767605A (en) * | 2012-08-02 | 2012-11-07 | 冯宝宝 | Static hydraulic driving device |
| CN108730469A (en) * | 2018-06-20 | 2018-11-02 | 合肥创源车辆控制技术有限公司 | A kind of contiuously variable transmission |
| WO2019242370A1 (en) * | 2018-06-20 | 2019-12-26 | 合肥创源车辆控制技术有限公司 | Continuously variable transmission |
| CN109114188A (en) * | 2018-09-29 | 2019-01-01 | 中国科学院长春光学精密机械与物理研究所 | A kind of hydraulic continuously variable transmission |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1063343A (en) | 1992-08-05 |
| CN1020790C (en) | 1993-05-19 |
| CN1017643B (en) | 1992-07-29 |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C13 | Decision | ||
| C17 | Cessation of patent right |