WO2000023730A1 - Transmission variable a reglage automatique - Google Patents

Transmission variable a reglage automatique Download PDF

Info

Publication number
WO2000023730A1
WO2000023730A1 PCT/CN1998/000288 CN9800288W WO0023730A1 WO 2000023730 A1 WO2000023730 A1 WO 2000023730A1 CN 9800288 W CN9800288 W CN 9800288W WO 0023730 A1 WO0023730 A1 WO 0023730A1
Authority
WO
WIPO (PCT)
Prior art keywords
transmission device
speed
thyristor
output
negative
Prior art date
Application number
PCT/CN1998/000288
Other languages
English (en)
Chinese (zh)
Inventor
Wenqing Yu
Original Assignee
Wenqing Yu
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wenqing Yu filed Critical Wenqing Yu
Priority to AU14795/99A priority Critical patent/AU1479599A/en
Publication of WO2000023730A1 publication Critical patent/WO2000023730A1/fr

Links

Classifications

    • 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
    • F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
    • F16H3/72—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion with a secondary drive, e.g. regulating motor, in order to vary speed continuously
    • F16H3/721—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion with a secondary drive, e.g. regulating motor, in order to vary speed continuously with an energy dissipating device, e.g. regulating brake or fluid throttle, in order to vary speed continuously
    • F16H3/722—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion with a secondary drive, e.g. regulating motor, in order to vary speed continuously with an energy dissipating device, e.g. regulating brake or fluid throttle, in order to vary speed continuously with a fluid throttle

Definitions

  • the invention relates to an automatic speed-adjusting transmission device, in particular to a transmission device that automatically adjusts the flow rate of a hydraulic pump according to a speed signal of an input or output component by using a speed-adjusting transmission component in the form of a hydraulic gear pump.
  • Hydraulic stepless speed change transmission generally adjusts its speed according to the external signal of the device
  • the purpose of the present invention is to overcome the shortcomings of the prior art described above, and provide an automatic speed-adjusting transmission device with simple structure, reliable operation, and low cost, that is, a hydraulic transmission device that can conveniently perform two functions of automatic speed stabilization and speed adjustment.
  • the automatic speed-adjusting transmission device includes a hydraulic transmission device and a speed-adjusting device, and the speed-adjusting device can automatically adjust the transmission ratio of the transmission device according to the change of the input speed.
  • the hydraulic transmission device is in the form of a hydraulic gear pump.
  • the hydraulic gear pump has an input shaft and an output shaft. An output gear is fixed on the output shaft.
  • the input shaft is connected to the casing of the gear pump and is in the casing.
  • the driven gears are connected to the output shaft and meshed with the three gears on the housing connected to the input shaft.
  • the working chamber meshes with the input gear and the driven gear. Filled with working fluid;
  • the variable speed adjusting device is an electric flow regulating valve, which is disposed in a space between the working chamber housing and the housing of the transmission device, and can adjust the hydraulic pressure in the working chamber.
  • a first power generating coil is provided on the input shaft, and the first power generating coil is respectively connected to a first positive thyristor switching circuit and a first negative thyristor switching circuit via a first varistor switch.
  • the control end of the power supply is connected to the driving end of the first thyristor opening circuit, and the negative end is grounded.
  • the output ends of the first thyristor opening circuit are respectively connected to the forward direction of the electric flow regulating valve.
  • the action input end and the negative action input end; the electric flow regulating valve is arranged on a fluid channel connecting the input port and the output port of the hydraulic transmission device, and is used for the first variable resistance according to the voltage output by the first power generating coil
  • the difference between the set resistance value of the switching loss and the resistance value of the first thyristor switching loss circuit automatically adjusts the flow rate through the fluid channel.
  • a second power generating coil is further provided on the output shaft; the second power generating coil is respectively connected to a second positive thyristor opening circuit and a second negative thyristor through a second variable resistance switch.
  • the control terminal of the switching circuit is connected; the positive electrode of the power supply is connected to the driving terminal of the second thyristor switching circuit, and the negative electrode is grounded; the output terminals of the second thyristor switching circuit are respectively connected to the positive of the electric throttle regulator.
  • the electric throttle adjuster is used according to the voltage output by the second generator coil, the set resistance value of the second varistor switch, and the resistance value of the second thyristor opening circuit The difference automatically adjusts the fuel supply to the engine ⁇
  • the hydraulic transmission device is a rotor type, an internal gear type, a roots type or a screw type bridge pressure hydraulic pump.
  • 1 is a cross-sectional view of a hydraulic transmission device of the present invention
  • 2 is a longitudinal sectional view of a hydraulic transmission device of the present invention
  • FIG. 3 is a principle diagram of a transmission adjusting device and a hydraulic transmission device according to the first embodiment of the present invention
  • FIG. 4 is a principle diagram of a transmission adjusting device and a hydraulic transmission device according to a second embodiment of the present invention.
  • Fig. 5 is a schematic diagram of a transmission adjusting device according to a third embodiment of the present invention connected to a hydraulic transmission device. The best way to implement the invention
  • the hydraulic transmission device of the present invention includes a hydraulic gear pump housing 10, three driving gears 4 uniformly distributed along the circumference installed on the housing, and one meshing with the driving gear 4.
  • An output gear 3 surrounds a working cavity of the output gear 3 and the driving gear 4, and the working cavity is filled with working oil.
  • Three sets of oil inlets 6 and three sets of oil outlets 7 are respectively provided between the meshing gears.
  • the output gear 3 is connected to the output shaft 2 and the input shaft 1 is connected to the gear pump housing 10.
  • the oil inlet 6 and the oil outlet 7 communicate through a hydraulic pipeline, and an electric motor is provided in the hydraulic pipeline.
  • the flow regulating valve 5 is provided with a first power line ⁇ 8 on the input shaft 1 and a second power line 9 on the output shaft.
  • a first power generating coil 8 provided on an input shaft 1 passes through a first variable resistance Kai Ling 11 and a first forward thyristor 13 and The control terminal of a negative thyristor switching circuit 14 is connected; the positive pole of the power source 12 is connected to the driving terminal of the first thyristor switching circuit 13, 14, and the negative pole is grounded; the first thyristor switching circuit 13, 14 The output terminals are respectively connected to the positive action input terminal and the negative action input terminal of the electric flow regulating valve 5.
  • the electric flow regulating valve 5 can be set according to the voltage output by the first power generating coil 8 and the setting of the first rheostat switch 11. The difference between the resistance value and the resistance value of the first thyristor open circuit 13, 14 automatically adjusts the flow rate through the hydraulic pipeline.
  • FIG. 4 is a second embodiment of the present invention.
  • the second power generating coil 9 provided on the output shaft 2 is connected to the second positive thyristor opening circuit 16 and the second negative via the second rheostat switch 15 respectively.
  • the terminals are respectively connected to the positive action input terminal and the negative action input terminal of the electric throttle adjuster 18; the electric throttle adjuster 18 can be set according to the voltage output by the second power generating coil 9 and the second variable resistance opening loss 15
  • the difference between the value and the resistance value of the second thyristor switching circuits 16, 17 automatically adjusts the amount of oil supplied to the engine 19.
  • the second power generating coil 9 provided on the output shaft 2 passes through a second variable resistance switching loss 15 and a second positive thyristor switching circuit 16 and a second negative, respectively.
  • the positive electrode of the power supply 12 is connected to the driving terminal of the second thyristor circuit 16, 17 and the negative electrode is grounded;
  • the output terminals are respectively connected to the positive and negative action input terminals of the electric flow regulating valve 5.
  • the electric flow regulating valve 5 can be set according to the voltage output by the second power generating coil 9 and the second variable resistance opening loss 15 setting. The difference between the resistance value and the resistance value of the second thyristor switching circuit 16, 17 automatically adjusts the flow rate through the hydraulic pipeline.
  • the working principle and working process of the automatic speed-adjusting transmission device are as follows: When the electric flow regulating valve 5 fully opens the hydraulic pipeline, the oil in the oil working chamber is in a free flowing state, so the hydraulic pressure The transmission is basically in a disengaged state, and the output shaft 2 does not rotate. When the rotation speed of the input shaft 1 increases, the first variable resistance open inflammation 11 is turned on, and the control system circuit is started. When the rotation speed continues to increase, so that the voltage generated by the power generating coil 8 on the input shaft exceeds the voltage set by the first varistor switch 11 and the first forward thyristor open circuit, the voltage passes through the first forward direction.
  • the electric flow regulating valve is driven by the power supply 12 to make a positive adjustment to reduce the flow opening degree, so that the flow rate of the pipeline is reduced, and the oil pressure in the hydraulic gear pump is reduced.
  • the driving gear 4 and driven gear 3 are driven by the oil resistance to gradually drive the output shaft to rotate and implement hydraulic transmission; as the input shaft speed further increases, the opening of the electric flow control valve is further reduced, and the oil resistance is further increased.
  • the gear ratio increases, the gear ratio decreases and the gear ratio increases, so that the gear ratio is automatically adjusted with the input speed.
  • the negative thyristor switching circuit 14 is turned on, and the electric flow regulating valve 5 is driven to increase the flow opening in a negative direction under the driving of the power source 12, so that the pressure in the working chamber of the hydraulic transmission device is reduced, and the transmission
  • the output shaft rotation speed decreases; as the output shaft rotation speed decreases, the load on the input shaft will also decrease and increase the speed, so that the voltage output by the first power generating coil 8 will increase accordingly, making the thyristor switch
  • the circuit 14 interrupts the power regulating valve 5 and the negative regulation is interrupted.
  • the electric flow regulating valve operates in a forward direction to reduce the transmission ratio and increase the speed ratio. It can be seen that the flow regulating valve repeatedly adjusts the positive or negative direction according to the change of the rotation speed of the input shaft, thereby achieving automatic adjustment and relative stability of the transmission ratio.
  • the difference in resistance between the positive and negative thyristor switching circuits corresponds to the adjustable range of the transmission ratio.
  • the second power line 9 provided on the output shaft 2 may be activated.
  • the second forward thyristor opening circuit is turned on, so that the throttle regulator is forward Adjust to increase the fuel supply to increase the engine speed.
  • the second generator coil 9 outputs a voltage that can drive the second negative thyristor opening circuit, so that The throttle adjuster makes a negative adjustment to reduce the fuel supply. Repeated work in this way can stabilize the engine speed within the set range.
  • the setting range of the rotation speed depends on the difference between the resistance values of the second positive thyristor on-off circuit and the second negative thyristor on-off circuit.
  • the adjustment rate from the minimum speed to the maximum speed depends on the resistance value of variable resistance and inflammation. Therefore, the adjustment range of the transmission ratio can be controlled by setting the difference between the resistance values of the positive and negative thyristor switch circuits; the adjustment rate can be controlled by setting or adjusting the resistance value of the variable resistance switch.
  • the second power generating coil 9 on the output shaft 2 is used, and the resistance value set by variable resistance opening loss 15 is used.
  • the second forward action thyristor opening circuit is turned on, so that the electric flow regulating valve 5 is adjusted forward to increase the output speed; otherwise, when the output speed is too large and exceeds the set value, the output of the second power generating coil 9 can drive the first
  • the voltage of the thyristor switch circuit with two negative actions causes the electric flow regulating valve 5 to perform negative regulation to reduce the output speed. Repeated operation in this way can stabilize the output shaft rotation speed of the transmission 20 within a set range.
  • the electric flow regulating valve of the present invention is arranged in the casing, so it can be protected from mud or dust, and further improves the work reliability.
  • the two variable resistance Kailing in the present invention can be set at the position of the instrument panel, similar to a switch of a radio, with a compact appearance and comfortable and convenient operation.
  • the invention can arbitrarily arrange the space of the cab without being restricted by the operating mechanism, and it can be realized by introducing a few wires to open the missing button.
  • the invention has the advantages of simple structure, reliable operation and strong practicability, and can automatically adjust the transmission ratio according to the input shaft speed or at the same time also the output shaft speed and stabilize it.
  • the present invention can also be used in other occasions that require variable speed.

Abstract

L'invention concerne une transmission variable à réglage automatique comprenant une transmission à pression hydraulique et un dispositif de réglage de la vitesse. Ce dernier est commandé par un circuit commutateur au silicium et peut être réglé de manière positive ou négative. Le dispositif de réglage de la vitesse peut régler automatiquement, selon les variations de la vitesse des arbres primaire et secondaire, le rapport de transmission de la transmission à pression hydraulique afin de stabiliser la vitesse du véhicule.
PCT/CN1998/000288 1998-10-19 1998-12-09 Transmission variable a reglage automatique WO2000023730A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU14795/99A AU1479599A (en) 1998-10-19 1998-12-09 Automatic variable transmission

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN98120637.9 1998-10-19
CN98120637 1998-10-19

Publications (1)

Publication Number Publication Date
WO2000023730A1 true WO2000023730A1 (fr) 2000-04-27

Family

ID=5226825

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN1998/000288 WO2000023730A1 (fr) 1998-10-19 1998-12-09 Transmission variable a reglage automatique

Country Status (2)

Country Link
AU (1) AU1479599A (fr)
WO (1) WO2000023730A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2644561A (en) * 1948-04-12 1953-07-07 Myron J Dikeman Fluid power drive and control unit
GB2047427A (en) * 1979-04-26 1980-11-26 Kubota Ltd Automatic control of speed
US4322988A (en) * 1980-02-05 1982-04-06 Hill Charles S Fluid braked planetary transmission
US4905807A (en) * 1987-08-13 1990-03-06 Ulrich Rohs Rotary vibration damper
US5042630A (en) * 1989-12-20 1991-08-27 Sundstrand Corporation Constant speed drive gear motor differential

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2644561A (en) * 1948-04-12 1953-07-07 Myron J Dikeman Fluid power drive and control unit
GB2047427A (en) * 1979-04-26 1980-11-26 Kubota Ltd Automatic control of speed
US4322988A (en) * 1980-02-05 1982-04-06 Hill Charles S Fluid braked planetary transmission
US4905807A (en) * 1987-08-13 1990-03-06 Ulrich Rohs Rotary vibration damper
US5042630A (en) * 1989-12-20 1991-08-27 Sundstrand Corporation Constant speed drive gear motor differential

Also Published As

Publication number Publication date
AU1479599A (en) 2000-05-08

Similar Documents

Publication Publication Date Title
US4501172A (en) Hydraulic speed control arrangement for an infinitely variable transmission
JPH0568386B2 (fr)
JPS5666547A (en) Hydraulic controller for speed change gear
US20040179962A1 (en) System and method for regulating pressure in an automatic transmission
CN111059091B (zh) 负载敏感供油模块、负载敏感系统及其控制方法
CN107269832B (zh) 静压的传动装置和具有这种静压的传动装置的车辆
WO2000023730A1 (fr) Transmission variable a reglage automatique
US6718763B2 (en) Hydraulic drive unit
SE445660B (sv) Brenslestyranordning for styrning av brensleflodet till en gasturbinmotor
CN2365457Y (zh) 一种自动调速传动装置
JPH10267004A (ja) 流体制御方法およびその装置
SE439517B (sv) Brenslesystem
JPH055265Y2 (fr)
GB2313582A (en) Flow rate controller in power steering apparatus
FR2371614A1 (fr) Reseau de transmission de puissance hydrostatique a compensation de charge
JPH04347382A (ja) ポンプの吐出圧力制御装置
JP2001193702A (ja) 建設機械の油圧駆動装置
JPH0612316Y2 (ja) 油圧伝導装置
CN213629082U (zh) 一种电控式真空调压阀
JPS6111429A (ja) 原動機と油圧ポンプを含む系の制御装置
JP2531220B2 (ja) 車両用油圧駆動ファン制御装置
WO1996032593A1 (fr) Dispositif de commande de cylindree destine a une pompe hydraulique de type cylindree variable
JP3954934B2 (ja) 油圧駆動装置
US10428816B2 (en) Variable speed multi-stage pump
CN112177091A (zh) 一种液压挖掘机用独立散热系统及控制方法

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AL AM AT AU AZ BA BB BG BR BY CA CH CN CU CZ DE DK EE ES FI GB GE GH GM HR HU ID IL IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT UA UG US UZ VN YU ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH GM KE LS MW SD SZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

122 Ep: pct application non-entry in european phase