CN110594386A - Gear pump type continuously variable transmission - Google Patents
Gear pump type continuously variable transmission Download PDFInfo
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- CN110594386A CN110594386A CN201910922569.6A CN201910922569A CN110594386A CN 110594386 A CN110594386 A CN 110594386A CN 201910922569 A CN201910922569 A CN 201910922569A CN 110594386 A CN110594386 A CN 110594386A
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- 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
- F16H47/00—Combinations of mechanical gearing with fluid clutches or fluid gearing
- F16H47/02—Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the volumetric type
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- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
- Rotary Pumps (AREA)
Abstract
The invention discloses a gear pump type continuously variable transmission, and belongs to the technical field of transmissions. The self-adaptive pressure regulating device comprises a box body, a shell, an input shaft, a meshing gear assembly, a self-adaptive pressure regulating assembly and an output shaft; the upper end and the lower end of the shell are respectively and fixedly connected with an upper cover plate and a lower cover plate in a sealing mode, the input shaft penetrates through the upper cover plate and extends to the inside of the shell to be connected with the meshing gear assembly, the center of the bottom of the lower cover plate is fixedly connected with the output shaft, and the meshing gear assembly and the self-adaptive pressure regulating assembly are installed in the shell. The invention completely abandons the defect of friction transmission, adopts hydraulic automatic control to change torque, almost has no friction wearing parts, locks the speed changer at medium and high speed, has no any friction loss, has the characteristics of simple structure, small volume, low manufacturing cost, long service life, no complex electric control system and the like, particularly can easily realize large-torque stepless speed change which is nearly rigid, always outputs the maximum torque, and has extremely low transmission loss.
Description
Technical Field
The invention relates to a gear pump type continuously variable transmission, and belongs to the technical field of transmissions.
Background
The current universal speed changer comprises a manual gear, a double-clutch automatic gear, an AT automatic gear and CVT stepless speed change. The manual gear is complex to operate, and the frequent gear shifting operation is troublesome; the double-clutch transmission achieves the purpose of gear shifting and speed changing by controlling friction, but frequent halter for ox friction has component damage and transmission loss, and the double-clutch transmission has large transmission loss and jerking feeling at low and medium speeds, and has complex structure and high cost; the AT automatic gear has the problems of large torque conversion loss, high oil consumption, untimely power and pause, and simultaneously has a complex structure and high cost; although CVT is stepless speed change, the power transmission of the CVT depends on the friction force between a steel belt and a belt disc, the torque peak value is limited, the starting is powerless or the belt slips, the defects are inherent, the pressure of the steel belt is overlarge, the power is applied at any moment, and both a bearing and the steel belt are easy to strain. Due to cost and torque problems, both automatic and infinitely variable speeds are used only on small cars and not on buses and trucks.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the gear pump type continuously variable transmission solves the problems that a traditional transmission is easy to strain, limited in torque peak value and high in cost.
The technical problem to be solved by the invention is realized by adopting the following technical scheme:
the gear pump type continuously variable transmission comprises a box body, a shell, an input shaft, a meshing gear assembly, a self-adaptive pressure regulating assembly and an output shaft;
the upper end and the lower end of the shell are respectively and fixedly connected with an upper cover plate and a lower cover plate in a sealing mode, the input shaft penetrates through the upper cover plate and extends to the inside of the shell to be connected with the meshing gear assembly, the center of the bottom of the lower cover plate is fixedly connected with the output shaft, the meshing gear assembly and the self-adaptive pressure regulating assembly are both installed in the shell, a liquid loop is formed between the meshing gear assembly and the self-adaptive pressure regulating assembly, the meshing gear assembly is rotatably connected with the inner wall of the shell, and the self-adaptive pressure regulating assembly is used for regulating the liquid flowing pressure between the meshing.
As a preferable example, a transmission cavity and a return cavity are respectively arranged at the upper part and the lower part in the shell, and the meshing gear assembly is arranged in the transmission cavity.
As a preferred example, the meshing gear assembly is an external meshing gear set, the external meshing gear set includes a driving wheel and a plurality of driven wheels, the driving wheel is rotatably connected to the center of the transmission cavity, the axis of the driving wheel is fixedly sleeved with the input shaft, the plurality of driven wheels are rotatably connected in the housing through fixed shafts, the plurality of driven wheels are uniformly distributed on the periphery of the driving wheel in an annular manner and are all meshed with the driving wheel, a plurality of oil outlet cavities and normal pressure cavities are further arranged in the transmission cavity, and each oil outlet cavity and normal pressure cavity are respectively located on the suction side and the discharge side of each driven wheel;
the inside of backward flow chamber is provided with multiunit installation cavity and oil feed chamber, every group installation cavity and oil feed chamber are corresponding with oil outlet chamber and ordinary pressure chamber respectively, and every group the bottom in installation cavity and oil feed chamber is linked together, every the top in oil feed chamber all is linked together through check valve and ordinary pressure chamber.
As a preferable example, each of the mounting cavities is respectively communicated with each of the oil outlet cavities, the number of the self-adaptive pressure-regulating assemblies is the same as that of the mounting cavities, each of the self-adaptive pressure-regulating assemblies comprises an oil trapping press sheet, a conical oil trapping pin, a plurality of connecting blocks and a plurality of first return springs, one end of each of the connecting blocks is fixedly connected with the oil trapping press sheet, each of the first return springs is respectively installed between each of the connecting blocks and the mounting cavity, the oil trapping press sheet and the connecting blocks are both in sealing sliding connection in the mounting cavity, the conical oil trapping pin is fixedly connected in the mounting cavity and provided with a through hole, and a circular truncated cone-shaped hole matched with the conical oil trapping pin is formed in the oil trapping press sheet.
As a preferable example, a sliding groove is formed in the top of the oil trapping press sheet, a chute is formed in the inner top of the mounting cavity, a wedge-shaped block is connected to the inside of the sliding groove and the inside of the chute in a sliding manner, and the moving direction of the wedge-shaped block is the centrifugal force direction when the shell rotates, and is used for pushing the oil trapping press sheet to move.
As a preferable example, shaft seals are arranged at the joints of the input shaft, the box body and the shell.
As preferred example, the meshing gear subassembly is interior meshing type gear train, interior meshing type gear train includes internal gear and external gear, mesh mutually between internal gear and the external gear, and eccentric settings, the axle center department of internal gear cup joints with the input shaft is fixed, interior meshing type gear train and casing eccentric settings, the input shaft sets up with the output shaft is concentric, go out the oil bin and the oil feed storehouse has been seted up on upper cover plate and the lower cover plate respectively, be provided with oil return passage between the oil bin and the oil feed storehouse, the self-adaptation pressure regulating subassembly is installed on the casing, and both ends are linked together with the oil bin and the oil feed storehouse respectively.
As a preferred example, the self-adaptive pressure regulating assembly comprises a sliding block, a second return spring and a pressure groove, the sliding block is connected inside the oil return channel in a sealing and sliding mode, the second return spring is installed between the sliding block and the oil return channel, one end of the pressure groove is communicated with the oil outlet bin, and the other end of the pressure groove extends to one end, far away from the second return spring, of the sliding block.
The invention has the beneficial effects that: the invention completely abandons the defect of friction transmission, adopts hydraulic automatic control to change torque, almost has no friction wearing parts, locks the speed changer at medium and high speed, has no any friction loss, has the characteristics of simple structure, small volume, low manufacturing cost, long service life, no complex electric control system and the like, particularly can easily realize large-torque stepless speed change which is nearly rigid, always outputs the maximum torque, and has extremely low transmission loss.
Drawings
FIG. 1 is a schematic structural view of example 1 of the present invention;
fig. 2 is a schematic back structure view of the housing in embodiment 1 of the present invention;
FIG. 3 is a sectional view taken along line A-A of FIG. 1;
FIG. 4 is a sectional view taken along line B-B of FIG. 1;
fig. 5 is a schematic structural diagram of an adaptive voltage regulation component in embodiment 1 of the present invention;
FIG. 6 is a schematic structural view of example 2 of the present invention;
FIG. 7 is a cross-sectional view taken along line C-C of FIG. 6;
fig. 8 is a schematic diagram of the positional relationship in the cross section of fig. 6.
In the figure: the oil-out cavity comprises a box body 1, a shell 2, a driven wheel 3, a fixed shaft 4, an oil-out cavity 5, a normal-pressure cavity 6, an input shaft 7, a driving wheel 8, an installation cavity 9, an oil trapping pressing sheet 10, a one-way valve 11, an oil inlet cavity 12, an upper cover plate 13, a wedge-shaped block 14, a conical oil trapping pin 15, a through hole 16, a lower cover plate 17, an output shaft 18, a connecting block 19, a first reset spring 20, a sliding block 21, an oil return channel 22, an oil inlet bin 23, an internal gear 24, an external gear 25, an oil outlet bin 26 and a.
Detailed Description
In order to make the technical means, the original characteristics, the achieved purpose and the efficacy of the invention easy to understand, the invention is further described with reference to the specific drawings.
Example 1
As shown in fig. 1-5, the gear pump type continuously variable transmission comprises a case 1, a housing 2, an input shaft 7, a meshing gear assembly, an adaptive pressure regulating assembly and an output shaft 18;
the upper end and the lower end of the shell 2 are respectively fixedly connected with an upper cover plate 13 and a lower cover plate 17 in a sealing mode, the input shaft 7 penetrates through the upper cover plate 13, the inner portion extending to the shell 2 is connected with the meshing gear assembly, the bottom center of the lower cover plate 17 is fixedly connected with the output shaft 18, the meshing gear assembly and the self-adaptive pressure-regulating assembly are both installed in the shell 2, a liquid loop is formed between the meshing gear assembly and the self-adaptive pressure-regulating assembly, the meshing gear assembly is rotatably connected with the inner wall of the shell 2, and the self-adaptive pressure-regulating assembly is used for regulating the liquid flowing.
A transmission cavity and a backflow cavity are respectively arranged in the shell 2 from top to bottom, and the meshing gear assembly is arranged in the transmission cavity.
The meshing gear assembly is an external meshing gear assembly, the external meshing gear assembly comprises a driving wheel 8 and a plurality of driven wheels 3, the driving wheel 8 is rotatably connected to the center of a transmission cavity, the axis of the driving wheel 8 is fixedly sleeved with an input shaft 7, the driven wheels 3 are rotatably connected into the shell 2 through fixed shafts 4, the driven wheels 3 are annularly and uniformly distributed on the periphery of the driving wheel 8 and are meshed with the driving wheel 8, a plurality of groups of oil outlet cavities 5 and normal pressure cavities 6 are further arranged in the transmission cavity, and each group of oil outlet cavities 5 and normal pressure cavities 6 are respectively located on the suction side and the discharge side of each driven wheel 3;
the inside in backward flow chamber is provided with multiunit installation cavity 9 and oil feed cavity 12, and every installation cavity 9 of group and oil feed cavity 12 are corresponding with oil outlet cavity 5 and ordinary pressure chamber 6 respectively, and the bottom of every installation cavity 9 of group and oil feed cavity 12 is linked together, and the top of every oil feed cavity 12 all is linked together with ordinary pressure chamber 6 through check valve 11.
Every installation cavity 9 is linked together with every oil outlet cavity 5 respectively, self-adaptation pressure subassembly quantity is the same with installation cavity 9 quantity, the self-adaptation pressure subassembly is including trapping oil preforming 10, the oily round pin 15 is trapped to the toper, a plurality of connecting block 19 and a plurality of first reset spring 20, the one end of a plurality of connecting block 19 all with trapping oil preforming 10 fixed connection, every first reset spring 20 is installed respectively between every connecting block 19 and installation cavity 9, trap oil preforming 10 and the equal sealing sliding connection of a plurality of connecting block 19 in installation cavity 9, the oily round pin 15 fixed connection is trapped to the toper in installation cavity 9, and seted up through-hole 16, trap oil and set up on the preforming 10 with the oily round platform hole of toper 15 assorted of trapping.
The top of trapping oil preforming 10 has been seted up the spout, and the chute has been seted up at the interior top of installation cavity 9, and the common sliding connection in inside of spout and chute has wedge 14, and the direction of motion of wedge 14 is the centrifugal force direction when casing 2 is rotatory for promote trapping oil preforming 10 and remove.
Shaft seals are arranged at the joints of the input shaft 7, the box body 1 and the shell 2.
The working principle is as follows: the driving wheel 8 inputs power through the clutch through the input shaft 7, each driven wheel 3 is firmly connected in the shell 2 in a rotating mode through the fixed shaft 4 and only rotates on the fixed shaft 4, the driving wheel 8 and the driven wheels 3 are combined into a linkage outer gear pump set, in a normal state, the maximum value of the outlet flow of the self-adaptive pressure-regulating assembly is slightly smaller than the minimum value of the idle flow of the outer gear pump set, the engine drives the driving wheel 8 to rotate in an idle speed mode at the moment, the transmission oil is pressed into the oil outlet cavity 5 from the normal pressure cavity 6 by linking the driven wheels 3 in a linkage mode, the transmission oil enters the mounting cavity 9 after passing through the self-adaptive pressure-regulating assembly and then enters the oil inlet cavity 12, the effect of oil path micro-hysteresis closed circulation is achieved, the power output is equivalent to one gear, when the engine is converted from the idle speed into a working condition, the driving wheel 8 is linked, the internal pressure of the oil outlet cavity 5 is increased, the pressure enables the oil trapping pressure piece 10 to automatically adjust the size of the oil outlet according to the pressure generated by power input, the relative rotating speed of a driving wheel and a driven wheel of an external gear pump set is automatically adjusted, the shell 2 and an output shaft 18 are driven to realize peak stepless speed transmission, the wedge-shaped block 14 can press down the oil trapping pressure piece 10 under strong centrifugal force during high rotating speed, so that the oil trapping pressure piece 10 cannot be completely reset during unpowered input and can be stopped at a corresponding closing position corresponding to the vehicle speed, power hysteresis loss cannot be caused during secondary power input, the other function of the first return spring 20 plays a role in pressure resistance, and the closing degree of the oil trapping pressure piece 10 is controlled according to the power input strength;
when the vehicle slides at a high speed without supplying oil, the rotating speed of the shell 2 is far larger than that of the input shaft 7, the oil flow direction of the transmission is reversed, the one-way valve 11 seals the normal pressure cavity 6, the input shaft 7 rotates along with the shell 2 through pressure locking until the rotating speed of the shell 2 is lower than that of the input shaft 7, and two purposes of locking are provided, namely, the engine and the transmission are kept in locking linkage, and the transmission oil is locked to flow, so that the heating of the transmission oil is avoided.
Example 2
As shown in fig. 6-8, the gear pump type continuously variable transmission comprises a case 1, a housing 2, an input shaft 7, a meshing gear assembly, an adaptive pressure regulating assembly and an output shaft 18;
the upper end and the lower end of the shell 2 are respectively fixedly connected with an upper cover plate 13 and a lower cover plate 17 in a sealing mode, the input shaft 7 penetrates through the upper cover plate 13, the inner portion extending to the shell 2 is connected with the meshing gear assembly, the bottom center of the lower cover plate 17 is fixedly connected with the output shaft 18, the meshing gear assembly and the self-adaptive pressure-regulating assembly are both installed in the shell 2, a liquid loop is formed between the meshing gear assembly and the self-adaptive pressure-regulating assembly, the meshing gear assembly is rotatably connected with the inner wall of the shell 2, and the self-adaptive pressure-regulating assembly is used for regulating the liquid flowing.
The meshing gear assembly is the internal gear type gear train, the internal gear type gear train includes internal gear 24 and external gear 25, mesh between internal gear 24 and the external gear 25, and eccentric settings, the axle center department of internal gear 24 is fixed with input shaft 7 and is cup jointed, the internal gear type gear train sets up with casing 2 is eccentric, input shaft 7 sets up with output shaft 18 is concentric, upper cover plate 13 and lower cover plate 17 have been seted up respectively and have been appeared oily storehouse 26 and oil feed storehouse 23, be provided with oil return channel 22 between storehouse 26 and the oil feed storehouse 23 of appearing, the self-adaptation pressure regulating subassembly is installed on casing 2, and both ends are linked together with storehouse 26 and oil feed storehouse 23 of appearing respectively.
The self-adaptive pressure-regulating assembly comprises a sliding block 21, a second return spring and a pressure groove 27, the sliding block 21 is connected inside the oil return channel 22 in a sealing and sliding mode, the second return spring is installed between the sliding block 21 and the oil return channel 22, one end of the pressure groove 27 is communicated with the oil outlet bin 26, and the other end of the pressure groove extends to one end, far away from the second return spring, of the sliding block 21.
Shaft seals are arranged at the joints of the input shaft 7, the box body 1 and the shell 2.
The working principle is as follows: the internal gear 24 inputs power through the input shaft 7 by a clutch, the internal gear 24 drives the external gear 25 to rotate to form a positive pressure area and a negative pressure area, an internal gear pump set is formed, transmission oil flows in the internal gear pump set, the oil outlet bin 26, the oil return channel 22 and the oil inlet bin 23 in sequence to form oil circuit micro-hysteresis closed circulation, when the internal gear 24 drives the external gear 25 to rotate in an accelerating mode, the transmission oil pumped out from the positive pressure area of the internal gear pump set is accelerated to flow into the oil outlet bin 26, the pressure in the oil outlet bin 26 is increased, a part of pressure pushes the sliding block 21 to move through the pressure groove 27, the throttling area of the return channel 22 is correspondingly adjusted in an electrodeless mode according to power input, the relative rotation between the internal gear pump set and the shell 2 is adjusted in a dynamic hysteresis mode.
The liquid is incompressible, the liquid flow can be cut off at any size, the two characteristics of the liquid are that the core application of the gear pump type continuously variable transmission is applied, the flow rate of the outlet of a gear pump (an inner engagement type and an outer engagement type) is automatically controlled by using the gear hydraulic self-feedback voltage and torque changing technology and the pressure difference generated by power input, the instant maximum available pressure is generated to drive the gear pump to integrally link and drive an output shaft to rotate, and the purpose of instant maximum torque continuously variable transmission is achieved.
The gear pump type continuously variable transmission can achieve nearly rigid continuously variable transmission due to incompressibility of liquid, but the rated pressure volume of a gear pump can limit the upper limit of torque, a common hydraulic gear pump can achieve the pressure of 10MPa, a high-pressure gear pump can achieve 20MP, the design parameters of embodiment 1 are taken as examples, the radius of a driving wheel 8 is 4.5cm, the tooth depth is 1cm, the tooth length is 5cm, the oil pressure reaches 3MPa and can achieve the torque of 400 N.m, the maximum pressure is three tenths of the maximum pressure of the common gear pump, the upper limit can achieve 1200 N.m, any small passenger car can be used, if larger torque is needed, such as 3000 N.m torque of a truck, the bearing pressure and the sealing degree in a shell 2 can be increased during design, and the effect of large torque can be easily achieved by increasing the radius of a main gear 8, increasing the gear modulus or increasing the gear thickness and the like.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. The gear pump type continuously variable transmission is characterized in that: the self-adaptive pressure regulating device comprises a box body (1), a shell (2), an input shaft (7), a meshing gear assembly, a self-adaptive pressure regulating assembly and an output shaft (18);
the upper end and the lower end of the shell (2) are respectively fixedly connected with an upper cover plate (13) and a lower cover plate (17) in a sealing mode, the input shaft (7) penetrates through the upper cover plate (13) and extends to the inside of the shell (2) to be connected with the meshing gear assembly, the bottom center of the lower cover plate (17) is fixedly connected with the output shaft (18), the meshing gear assembly and the self-adaptive pressure regulating assembly are both installed in the shell (2), a liquid loop is formed between the meshing gear assembly and the self-adaptive pressure regulating assembly, the meshing gear assembly is rotatably connected with the inner wall of the shell (2), and the self-adaptive pressure regulating assembly is used for regulating the liquid flowing pressure between the meshing gear assembly and the shell (2).
2. The gear pump type continuously variable transmission according to claim 1, characterized in that: a transmission cavity and a backflow cavity are respectively arranged in the shell (2) from top to bottom, and the meshing gear assembly is installed in the transmission cavity.
3. The gear pump type continuously variable transmission according to claim 2, characterized in that: the meshing gear assembly is an external meshing gear set, the external meshing gear set comprises a driving wheel (8) and a plurality of driven wheels (3), the driving wheel (8) is rotatably connected to the center of a transmission cavity, the axis of the driving wheel (8) is fixedly sleeved with an input shaft (7), the driven wheels (3) are rotatably connected into the shell (2) through a fixed shaft (4), the driven wheels (3) are annularly and uniformly distributed on the periphery of the driving wheel (8) and are meshed with the driving wheel (8), a plurality of groups of oil outlet cavities (5) and normal pressure cavities (6) are further arranged in the transmission cavity, and each group of oil outlet cavity (5) and normal pressure cavity (6) is respectively located on the suction side and the discharge side of each driven wheel (3);
the inside in backward flow chamber is provided with multiunit installation cavity (9) and oil feed chamber (12), every group installation cavity (9) and oil feed chamber (12) are corresponding with oil outlet chamber (5) and ordinary pressure chamber (6) respectively, and every group the bottom of installation cavity (9) and oil feed chamber (12) is linked together, every the top of oil feed chamber (12) all is linked together through check valve (11) and ordinary pressure chamber (6).
4. The gear pump type continuously variable transmission according to claim 3, characterized in that: each mounting cavity (9) is respectively communicated with each oil outlet cavity (5), the number of the self-adaptive pressure regulating assemblies is the same as that of the mounting cavities (9), the self-adaptive pressure-regulating assembly comprises an oil trapping press plate (10), a conical oil trapping pin (15), a plurality of connecting blocks (19) and a plurality of first return springs (20), one ends of the connecting blocks (19) are fixedly connected with the oil trapping press plate (10), each first return spring (20) is respectively arranged between each connecting block (19) and the mounting cavity (9), the oil trapping press plate (10) and the connecting blocks (19) are hermetically and slidably connected in the mounting cavity (9), the conical oil trapping pin (15) is fixedly connected in the mounting cavity (9), and a through hole (16) is arranged, and a circular truncated cone-shaped hole matched with the conical oil trapping pin (15) is arranged on the oil trapping press sheet (10).
5. The gear pump type continuously variable transmission according to claim 4, wherein: the top of the oil trapping press sheet (10) is provided with a sliding groove, the inner top of the mounting cavity (9) is provided with a chute, the sliding groove and the chute are connected with a wedge block (14) in a sliding mode, and the moving direction of the wedge block (14) is the centrifugal force direction when the shell (2) rotates and is used for pushing the oil trapping press sheet (10) to move.
6. The gear pump type continuously variable transmission according to claim 1, characterized in that: and shaft seals are arranged at the joints of the input shaft (7) and the box body (1) and the shell (2).
7. The gear pump type continuously variable transmission according to claim 1, characterized in that: the meshing gear assembly is interior mesh type gear train, interior mesh type gear train includes internal gear (24) and external gear (25), mesh between internal gear (24) and the external gear (25), and eccentric settings, the axle center department and the fixed cup joint of input shaft (7) of internal gear (24), interior mesh type gear train and casing (2) eccentric settings, input shaft (7) and output shaft (18) concentric setting, go up apron (13) and lower cover plate (17) and have seted up out oil bin (26) and oil feed storehouse (23) respectively, be provided with return oil passageway (22) between oil bin (26) and the oil feed storehouse (23), the adaptive pressure regulating subassembly is installed on casing (2), and both ends are linked together with oil bin (26) and oil feed storehouse (23) respectively.
8. The gear pump type continuously variable transmission according to claim 7, characterized in that: self-adaptation pressure regulating assembly includes slider (21), second reset spring and pressure tank (27), the inside of slider (21) sealed sliding connection at oil return passageway (22), second reset spring installs between slider (21) and oil return passageway (22), the one end and the play oil bin (26) of pressure tank (27) are linked together, and the other end extends to slider (21) and keeps away from the one end of second reset spring.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910922569.6A CN110594386A (en) | 2019-09-27 | 2019-09-27 | Gear pump type continuously variable transmission |
| CN202010304644.5A CN111425579A (en) | 2019-09-27 | 2020-04-17 | Gear pump type stepless speed variator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910922569.6A CN110594386A (en) | 2019-09-27 | 2019-09-27 | Gear pump type continuously variable transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110594386A true CN110594386A (en) | 2019-12-20 |
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910922569.6A Pending CN110594386A (en) | 2019-09-27 | 2019-09-27 | Gear pump type continuously variable transmission |
| CN202010304644.5A Pending CN111425579A (en) | 2019-09-27 | 2020-04-17 | Gear pump type stepless speed variator |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010304644.5A Pending CN111425579A (en) | 2019-09-27 | 2020-04-17 | Gear pump type stepless speed variator |
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| CN (2) | CN110594386A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116066526B (en) * | 2023-03-22 | 2023-06-20 | 江苏万基传动科技有限公司 | RV speed reducer for industrial robot |
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2019
- 2019-09-27 CN CN201910922569.6A patent/CN110594386A/en active Pending
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2020
- 2020-04-17 CN CN202010304644.5A patent/CN111425579A/en active Pending
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| CN111425579A (en) | 2020-07-17 |
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Application publication date: 20191220 |