CN1183524A - Fluid drive transmission for motor vehicle - Google Patents
Fluid drive transmission for motor vehicle Download PDFInfo
- Publication number
- CN1183524A CN1183524A CN 96121251 CN96121251A CN1183524A CN 1183524 A CN1183524 A CN 1183524A CN 96121251 CN96121251 CN 96121251 CN 96121251 A CN96121251 A CN 96121251A CN 1183524 A CN1183524 A CN 1183524A
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- gear
- speed
- motor vehicle
- fluid drive
- electronic program
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Abstract
An automatically shifting speed variator for motor-driven vehicles is disclosed, which features simple structure, small size, low cost, quick shifting for higher speed, shifting to lower speed based on running speed, and stable shifting.
Description
The present invention relates to a kind of fluid drive transmission for motor vehicle, especially the fluid drive transmission for motor vehicle a kind of by Hollow Transmission Shafts, that sun gear, planetary pinion, planet pin, gear ring, bearing, steel ball, screw rod, sliding sleeve, actuating motor, speed Detecting element, electronic program circuit are formed.
Employed fluid drive transmission all is oil pressure, clutch configuration on the current mobility car.This complex structure, volume is big, cost is high, maintenance difficult.Can only be in the supporting use of high-grade car.
The present invention aims to provide a kind of simple in structure, fluid drive transmission for motor vehicle that the little cost of volume is low.
The technical solution used in the present invention is: form each speed threshold by sun gear, planetary pinion, planet pin, planet carrier, gear ring, bearing, the planet carrier of each speed threshold is into a single integrated structure with the sun gear of the speed threshold that is connected.Each speed threshold polyphone is installed on the Hollow Transmission Shafts.Form the serial verb construction that increases shelves deceleration, downshift speedup.The clutch function of forming each gear by circle in the sun gear of the sliding sleeve in Hollow Transmission Shafts and the axle, screw rod, each gear by the steel ball in the circular hole on 120 ° of corresponding Hollow Transmission Shafts of disconnected arc groove of five equilibrium and arc groove position.By the rate signal that mileage speed Detecting element is obtained, speedup or reduce-speed sign input electronic program circuit are by the instantaneous speed of a motor vehicle situation decision of electronic program circuit discrimination machine motor-car gear shift.The positive hour hands of electronic program circuit control micromachine, inhour is rotated the screw rod that drives in the Hollow Transmission Shafts and is rotated, the lead-screw upper sliding sleeve advances or retreats, and makes each speed threshold steel ball snap in the arc groove in the sun gear of relevant position or separates the realization gear shift with arc groove in the sun gear.The neutral gear indication is made up of the position limit switch on the dunnage that is installed in the Hollow Transmission Shafts input end, sliding sleeve.When the sliding sleeve on the screw rod retreats to neutral position, sliding sleeve pressing position limit switch contact, neutral indicatorlamp energising, tutorial light is bright, and the indication Motor Vehicle is in neutral state.
This fluid drive transmission for motor vehicle also is provided with three bevel type gears and pull bar, fork and bearing have been formed manned reverse gear, neutral gear, forward gears.
This fluid drive transmission for motor vehicle has been cancelled the clutch of former Motor Vehicle automatic gear shift transmission device, hydraulic piston, oil circuit switch, speed pump, relay, oil-way board, main shaft, countershaft, makes the volume of gearbox reduce half.Cost has only 1/3rd of former automatic gear shift transmission device.It is tracing machine motor-car mileage speed fast, in good time accurately conversion gear, so gear shift steadily, perform fast, reduced motor vehicle fuel consumption, be current desirable fluid drive transmission for motor vehicle of new generation.
Further describe below in conjunction with embodiments of the invention:
Figure (1) is a structure principle chart of the present invention.Figure (2) is the speed threshold structural drawing.Figure (3) is the electronic program schematic diagram.Figure (4) is that engine speed detects, and mileage speed detects schematic diagram.
In the structural principle shown in the figure (1), the hand control shelves are made up of transmission shaft (1), bevel type gear (2) (3) driving gear (5) (6), bearing (25) (26) (27) and operating handle, fork, when the hand control gear shift is in neutral position, actuating motor does not change, sliding sleeve (12) on the screw rod (9) is in neutral position, bevel type gear (2) (3) on the transmission input shaft (1) is in separated state with bevel type gear (4), and fluid drive transmission does not have the transmission input.
When the manual operation gear shift was advanced to forward position, bevel type gear (2) inserted, but because sliding sleeve is in neutral position, Hollow Transmission Shafts is in idling conditions, unpowered output.
Downshift speedup: when the driver opens the throttle, when motor exceeds idle running, the speed Detecting element is measured engine speed increases signal, input electronic program circuit, actuating motor clockwise rotates, driving screw rod (9) by gear (7) (8) clockwise rotates, sliding sleeve on the screw rod (12) is pushed ahead, three steel balls (20) that match with one grade of sun gear (15) on the Hollow Transmission Shafts are pressed in three corresponding arc grooves of sun gear (19), Hollow Transmission Shafts (13) just by three steel ball engaging sun gears, rotates one grade of sun gear and Hollow Transmission Shafts synchronously.One grade of sun gear passes through the second gear sun gear gearing down of planetary pinion (16), planet carrier (18) disjunctor.Because sun gear of each grade and last one grade planet carrier are into a single integrated structure, each speed threshold all is that gear ring (23) is fixing, sun gear (15) input, the reducing transmission structure of planet carrier (18) output, so the rotating speed of Hollow Transmission Shafts (13) is through the gearing down of one, two, three, four speed thresholds, at last at the slowest and rotating speed of moment maximum of one grade of planet carrier (21) output shaft (22) output.
Under the control of electronic program circuit, Hollow Transmission Shafts engages with one grade, and Motor Vehicle begins to have had mileage speed.If the driver continues to open the throttle, mileage speed rises, mileage speed Detecting element (28) detects speed increases signal, this signal input electronic program circuit (30), continue just to change by electronic program circuit control actuating motor, because screw rod just changes, the sliding sleeve on the screw rod can continue to push ahead.Sliding sleeve on the Hollow Transmission Shafts will make one grade of separation, second gear engaging, second gear separate third gear and engage downshift one by one along with the increase of mileage speed.Fluid drive transmission can be followed the speed of a motor vehicle increase rotating speed is become top gear fast by bottom gear.Output shaft output maximum speed is realized the downshift speedup.
Increasing shelves slows down: when the driver reduces throttle or brake, motor vehicle speed descends, and mileage speed Detecting element (28) detects reduce-speed sign, this signal input electronic program circuit (30), and the electronic program circuit is just controlled the actuating motor inhour and is rotated.Because the actuating motor inhour is rotated drive Hollow Transmission Shafts (13) inner screw (9) inhour and is rotated, sliding sleeve on the screw rod (12) can be drawn back, top gear just separates with Hollow Transmission Shafts, adjacent bottom gear just engages, the transmission of Hollow Transmission Shafts has just added a reduction gear, rotates corresponding the slowing down of output.If because the driver reduces throttle or brake, or owing to the reason motor vehicle speed that goes up a slope descends, the Detecting element of each corresponding speed shelves continues to detect reduce-speed sign, the electronic program circuit continues to control the rotation of actuating motor inhour, withdraws the membership behind the sliding sleeve on the screw rod to make fourth gear separation, third gear engaging, third gear separation, second gear engaging, second gear separation, one grade of engaging.Hollow Transmission Shafts has been advanced two, three, four reduction gear by one grade of string, gearing down, and the output minimum speed has been realized increasing shelves and has been slowed down.
Each speed threshold of this fluid drive transmission for motor vehicle all is provided with speedup, and the deceleration Detecting element increases shelves or downshift so the increase and decrease of the speed of a motor vehicle of any gear all can feed back to the accurate control of electronic program circuit.
The neutral gear indication: when motor vehicles parking, because mileage speed returns to zero, the Detecting element of each speed threshold (28) all detects reduce-speed sign, and electronic program circuit (30) control actuating motor (10) inhour is rotated.The inhour of screw rod (9) is rotated and is made sliding sleeve (12) fall back on neutral position fast.Sliding sleeve pressing position limit switch (11), neutral indicatorlamp indication Motor Vehicle is in neutral position, guarantees Motor Vehicle starting safety.
Reverse gear: when the hand control gear shift pushed the reverse gear position, bevel type gear (3) inserted, and the Hollow Transmission Shafts counterclockwise direction is rotated, the driver is oil a little, the speed Detecting element detects the engine speed plus signal, input electronic program circuit, and the positive hour hands of control actuating motor rotate.Actuating motor drives screw rod and rotates, and the sliding sleeve on the screw rod moves forward, and makes one grade of engaging, and Hollow Transmission Shafts makes backing automobile by the output torque of slowing down.Sliding sleeve during parking on the screw rod is return neutral position.
Figure (3) is the electronic program schematic diagram.By optical detection device in the engine speed indicator and the detected rate signal input of the mileage optical detection device in odometer electronic program circuit.The electronic program circuit is made up of AND NOT gate, bistable, OR-NOT circuit, and they are according to engine rotational speed signal, and the clockwise and anticlockwise of mileage rate signal control actuating motor realizes shelves or moves back shelves.
Figure (4) is the engine speed indicator optical detection device, and odometer speed optical detection device schematic diagram.Blanking disc (32) is arranged on the engine speed indicator (31), unthreaded hole (33) is arranged on the dish.Have under the blanking disc in speed dial plate (34) dial plate and by engine idle scale and the position that is higher than the idling scale photosensitive element (29) to be set and to work as engine startup operation, blanking disc rotates with engine speed, to the photosensitive element (29) of last dial plate, photosensitive element sends idling and speedup signal to programme-controlled circuit respectively to unthreaded hole on the dish (33) respectively.Electronic program circuit control actuating motor is just changeing and is performing.The mileage speedometer is equipped with a blanking disc on (35) equally, and two unthreaded holes (36) (37) are arranged on the blanking disc, and a dial plate is arranged under the blanking disc, by mileage speed scale two row's photosensitive elements is installed respectively in the dial plate.The photosensitive element of inner ring (28) is the gear element of corresponding dial plate speed, sends the speed stage signal by it to the electronic program circuit.The photosensitive element of outer ring (28) is the photosensitive element that the speed of corresponding speed gear increases or reduces, and sends the increase and decrease signal of speed on a certain speed threshold by it to the electronic program circuit, by the clockwise and anticlockwise of electronic program circuit control actuating motor, realizes transforming gear.
Claims (5)
- One, a kind of fluid drive transmission for motor vehicle, it is by sun gear, planetary pinion, planet pin, planet carrier, gear ring, bearing, transmission shaft, sliding sleeve, screw rod, actuating motor, the electronic program circuit is formed, it is characterized in that: it is by sun gear (15), planetary pinion (16), planet pin (17), planet carrier (18), gear ring (23), bearing (14) is formed each speed threshold, the planet carrier of each grade is into a single integrated structure with the sun gear of the speed threshold that is connected, each speed threshold polyphone is installed on the transmission shaft, form the downshift speedup, increase the serial verb construction that shelves slow down, transmission shaft (13) is a hollow shaft, by the sliding sleeve (12) in Hollow Transmission Shafts and the axle, circle is formed the gear clutch function by the steel ball (20) in the circular hole (24) on 120 ° of disconnected arc grooves of five equilibrium (19) Hollow Transmission Shafts corresponding with arc groove position in the screw rod (9), the sun gear of each gear.
- Two, according to the described fluid drive transmission for motor vehicle of claim one, it is characterized in that: it is by the obtained rate signal of mileage speed Detecting element (28) engine speed Detecting element (29) or speedup, reduce-speed sign input electronic program circuit (30), by the instantaneous speed of a motor vehicle situation decision of electronic program circuit discrimination machine motor-car gear shift.
- Three, according to the described fluid drive transmission for motor vehicle of claim one, it is characterized in that: it is by actuating motor (the 10 positive hour hands of electronic program circuit control, inhour is rotated the screw rod (9) that drives in the Hollow Transmission Shafts and is rotated, sliding sleeve on the lead-screw (12) advances or retreats, and makes the steel ball (20) of each speed threshold snap in the arc groove (19) in the sun gear of relevant position or separates the realization gear shift with arc groove in the sun gear.
- Four, according to the described fluid drive transmission for motor vehicle of claim one, it is characterized in that: its neutral gear is made up of the position limit switch (11), the sliding sleeve (12) that are installed on Hollow Transmission Shafts (13) fixed plate.
- Five, according to the described fluid drive transmission for motor vehicle of claim one, it is characterized in that: it is by bevel type gear (2) (3) and transmission shaft (1), driving gear (5) (6), bearing (25) (26) (27) is formed the conversion of manned reversing, neutral gear, the gear that advances.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96121251 CN1183524A (en) | 1996-11-25 | 1996-11-25 | Fluid drive transmission for motor vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96121251 CN1183524A (en) | 1996-11-25 | 1996-11-25 | Fluid drive transmission for motor vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1183524A true CN1183524A (en) | 1998-06-03 |
Family
ID=5126812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96121251 Pending CN1183524A (en) | 1996-11-25 | 1996-11-25 | Fluid drive transmission for motor vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1183524A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100412420C (en) * | 2006-06-22 | 2008-08-20 | 上海交通大学 | Direct shift mechanism of mechanical automatic transmission motor |
| CN106438997A (en) * | 2016-09-27 | 2017-02-22 | 张道勤 | Continuous assistance hydraulic control gear shifting transmission |
-
1996
- 1996-11-25 CN CN 96121251 patent/CN1183524A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100412420C (en) * | 2006-06-22 | 2008-08-20 | 上海交通大学 | Direct shift mechanism of mechanical automatic transmission motor |
| CN106438997A (en) * | 2016-09-27 | 2017-02-22 | 张道勤 | Continuous assistance hydraulic control gear shifting transmission |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |