CN109611545B - Automatic gear shifting transmission assembly for vehicle - Google Patents
Automatic gear shifting transmission assembly for vehicle Download PDFInfo
- Publication number
- CN109611545B CN109611545B CN201811592124.8A CN201811592124A CN109611545B CN 109611545 B CN109611545 B CN 109611545B CN 201811592124 A CN201811592124 A CN 201811592124A CN 109611545 B CN109611545 B CN 109611545B
- Authority
- CN
- China
- Prior art keywords
- gear
- shifting
- shaft
- sliding
- fork
- Prior art date
- Legal status (The legal status 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 status listed.)
- Active
Links
Images
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
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/02—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used
- F16H61/0202—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric
- F16H61/0204—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric for gearshift control, e.g. control functions for performing shifting or generation of shift signal
- F16H61/0213—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric for gearshift control, e.g. control functions for performing shifting or generation of shift signal characterised by the method for generating shift signals
-
- 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
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/30—Constructional features of the final output mechanisms
- F16H63/32—Gear shift yokes, e.g. shift forks
-
- 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
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/30—Constructional features of the final output mechanisms
- F16H63/32—Gear shift yokes, e.g. shift forks
- F16H2063/321—Gear shift yokes, e.g. shift forks characterised by the interface between fork body and shift rod, e.g. fixing means, bushes, cams or pins
Abstract
The invention discloses an automatic shifting transmission assembly of a vehicle, which comprises a shift lever assembly, a shift lever assembly and a shift gear assembly, wherein the shift lever assembly is arranged on the shift lever assembly; the gear shift lever assembly comprises a motor, a worm and gear mechanism, a gear shift shaft and a gear shift column, and comprises a fixed gear shift lever shaft, a first shifting fork assembly and a second shifting fork assembly which are sleeved on the gear shift lever shaft; the first shifting fork assembly comprises a first seat plate, a fork handle, two cylinder springs and two clamping sleeves, wherein the fork handle is used for shifting a first sliding gear to be connected with a first shifting fork, the shifting gear assembly comprises a plurality of transmission shaft assemblies, the transmission shafts of the two transmission shaft assemblies are respectively provided with the first sliding gear and the first sliding gear, one ends of the two sliding gears are coaxially connected with a movable sleeve, the two sliding gears and the movable sleeve are rotatably sleeved on the transmission shafts where the two sliding gears and the movable sleeve are respectively located, and an external spline structure is arranged on the outer cylindrical surface of the movable sleeve along the axial direction of the external spline structure. The automatic shifting transmission assembly of the vehicle has accurate and timely shifting response and better reliability.
Description
Technical Field
The invention belongs to the technical field of vehicle transmissions, and particularly relates to an automatic transmission.
Background
The existing vehicle gear shifting mechanism is complex in structure, unreasonable in overall structure arrangement, easy to produce hysteresis or inaccurate and reliable in gear shifting, and aims at improving various parts of the existing vehicle gear shifting structure by a person skilled in the art, so that a novel vehicle gear shifting mechanism is designed to improve the execution timeliness and reliability of the whole gear shifting mechanism.
Disclosure of Invention
The invention aims to solve the technical problems and provide the vehicle automatic shifting transmission assembly which is simple and compact in structure and accurate and timely in shifting response.
The technical scheme of the invention is as follows:
an automatic gear shifting transmission assembly of a vehicle comprises a gear lever assembly, a deflector rod assembly and a gear shifting assembly;
the gear shift lever assembly comprises a motor, a worm gear mechanism, a gear shift shaft and a gear shift column, wherein an output shaft of the motor is connected with a worm, a worm wheel is fixed on the gear shift shaft to drive the gear shift shaft to rotate, the gear shift column is cylindrical and fixed on the gear shift shaft, and a circle of gear shift groove is formed in the cylindrical surface of the gear shift column along the circumferential direction of the cylindrical surface of the gear shift column; a flat plate and a baffle plate which are opposite to each other are sleeved on a gear shifting shaft between a gear shifting column and a worm gear by the worm gear, the gear shifting shaft can freely rotate after passing through the flat plate, a pair of magnetic sensors are arranged on the end face of the flat plate, the baffle plate is fixed on the gear shifting shaft, a plurality of pairs of mounting holes are arranged on the end face of the baffle plate, when the worm gear drives the gear shifting shaft to synchronously rotate together, each pair of mounting holes sequentially pass through the positions opposite to the pair of magnetic sensors, at most one magnetic steel is embedded in at least one pair of mounting holes so that the pair of mounting holes are neutral sensing positions, and each of the other pairs of mounting holes is embedded with one magnetic steel so that the pair of mounting holes are non-neutral sensing positions;
the shifting lever assembly comprises a shifting lever shaft fixedly arranged, and a first shifting fork assembly and a second shifting fork assembly which are sleeved on the shifting lever shaft and can axially slide along the shifting lever shaft; the first shifting fork assembly comprises a first seat board in a' shape, a fork handle, two cylindrical springs and two clamping sleeves, wherein the fork handle is positioned in an opening of the first seat board and is used for shifting a first shifting fork of a first sliding gear for connecting and driving, the opening of the first seat board is upward, a shifting rod shaft vertically penetrates through two side plates of the opening of the first seat board, the fork handle of the first shifting fork can be sleeved on the shifting fork shaft in an axial sliding manner, a first guide column at the bottom of the fork handle stretches into a strip hole in the inner bottom of the opening of the first seat board, the first guide column can slide in the strip hole along the direction parallel to the shifting rod shaft, the fork handle is sleeve-shaped, the two ends of the fork handle are respectively tightly attached with the clamping sleeves which are sleeved on the shifting rod shaft and can axially slide along the shifting rod shaft, one end of each clamping sleeve is clamped in the annular groove, the other end of each sliding connecting plate is buckled on a bottom plate of the first seat board and can axially slide along the shifting rod shaft, the two cylindrical springs are respectively sleeved on the shifting rod shaft in the axial direction, and the two cylindrical springs are compressed between the corresponding side plates and the corresponding clamping sleeves; the second shifting fork assembly comprises a second seat plate in a shape of a' [, a fork handle and a cylindrical compression spring, wherein the fork handle and the cylindrical compression spring are both positioned in an opening of the second seat plate and are used for stirring a second shifting fork for connecting and driving a second sliding gear, a strip-shaped hole is formed in the inner bottom of the opening of the second seat plate, a second guide column is arranged at the bottom of the fork handle of the second shifting fork, the second guide column stretches into the strip-shaped hole and can slide in the strip-shaped hole along a direction parallel to a shifting rod shaft, a circular concave cavity is formed in one end of the second shifting fork handle close to the first shifting fork assembly along the axial direction of the second shifting fork handle, one end of the compression spring in a extrusion state stretches into the concave cavity, and the other end of the compression spring is tightly connected with the inner wall of a side plate at the opening of the second seat plate; the outer bottoms of the opening parts at the ends, close to the first seat board and the second seat board, of the first seat board and the second seat board are respectively fixedly provided with a sliding column, and the sliding columns are positioned in the gear shifting grooves and drive corresponding shifting forks to shift corresponding sliding gears to realize gear shifting when the gear shifting columns rotate;
the gear shifting assembly comprises a plurality of transmission shaft assemblies, wherein the transmission shafts of the two transmission shaft assemblies are respectively provided with a first sliding gear and a second sliding gear, one ends of the two sliding gears are coaxially connected with a movable sleeve, the two sliding gears and the movable sleeve are rotatably sleeved on the transmission shafts where the two sliding gears and the movable sleeve are respectively located, the outer cylindrical surface of the movable sleeve is axially provided with an external spline structure, the transmission shafts are fixedly sleeved with a fixed sleeve at the position close to the sliding cylinder, the fixed sleeve is provided with external splines, the outside of the fixed sleeve is also sleeved with an internal spline sleeve matched with the external splines, and a shifting fork head is clamped outside the internal spline sleeve and can drive the internal spline sleeve to axially slide to the position matched with the movable sleeve and the fixed sleeve.
Further, the shift groove of one of the shift columns has two bent groove portions bent and arched toward both ends of the shift column axis, and the shift groove of the other shift column has one bent groove portion arched toward the outside of the shift column.
Further, the neutral sensing position is located between two pairs of mounting holes as 2 nd gear and 3 rd gear, and the remaining pair of mounting holes is used as a 1 st gear.
Further, the part of the motor output shaft extending out of the motor shell end face is fixed with two cylindrical gears with different sizes, the smaller cylindrical gears are arranged by the motor shell end face, the motor shell end face is further provided with a mandrel parallel to the output shaft, and two gears which can be meshed with the two cylindrical gears on the output shaft are arranged on the mandrel.
Further, the fork head is a semicircular arc slat.
Further, the part of the sliding connecting plate clamped in the annular groove is of a semicircular arc slat structure, the part buckled on the bottom plate of the first seat plate is of a n-shaped structure, two sides of the middle part of the bottom plate of the first seat plate outwards extend to form limiting protruding parts, and the protruding parts separate and isolate the two sliding connecting plates.
Further, the end parts of the transmission shafts where the two sliding gears are located are respectively provided with a rotation speed sensor used for detecting the rotation speed of the transmission shafts, and after signals acquired by the rotation speed sensors are transmitted to the controller, the controller drives the motor to rotate.
The invention has the beneficial effects that: the invention adopts three shift lever components, a shift lever component and a shift gear component to realize timely and accurate shift of a vehicle, when in shift, a motor of the shift lever component rotates, and a gear worm mechanism drives a shift shaft to rotate, so that a shift column rotates, a shift groove on the shift column matched with a slide column at the bottom of the shift lever component drives the whole shift lever component to axially move along the shift lever shaft, namely, a shift fork on the shift lever component drives an internal spline housing to axially move to a position which simultaneously connects a fixed housing and a movable housing on one transmission shaft of the shift gear component, thereby realizing the transmission connection of corresponding sliding gears and achieving the aim of shift and speed change. The gear shifting design makes the whole structure simplified as much as possible on the basis of stability and reliability, and reduces the transmission failure rate. For the magnetic induction position judging structure between the baffle plate and the flat plate of the shift lever assembly, the rotation position of the shift column corresponds to the magnetic sensor and the magnetic steel, when the magnetic steel signal detected by the magnetic sensor is one, namely the shift column rotates to the neutral position, the slide column of the shift lever assembly is just positioned at the initial position where the shift lever shaft does not slide towards any end, namely the shift fork is reset to stay at the position where the inner spline housing is separated from the movable housing on the sliding gear. When the baffle plate on the gear shift shaft rotates to a plurality of pairs of mounting hole positions which are sequentially arranged in the rotation direction, the sequential signal corresponds to: the positions of a pair of mounting holes which do not have two magnetic steel signals at the original positions are neutral positions, and a plurality of pairs of mounting holes which are backward are correspondingly provided with two magnetic steel signals, so that the pairs of magnetic steel signals which are detected backward from the sensor to detect the unpaired magnetic steel signals are the corresponding shift column rotation stay positions of the corresponding gears, and the gear shifting is simply, directly and accurately realized. The elastic extrusion force of the cylindrical springs is utilized in the two [ -shaped seat plates of the shifting fork assembly, so that the shifting fork moves forward more rapidly when the sliding column moves along the axial direction of the shifting fork shaft, the shifting fork is pushed to the corresponding shifting position in time, the shifting sensitivity is improved, the problems of clamping stagnation and abrasion which are easy to generate when the shifting fork is pushed rigidly are avoided, and the impact during movement and deflection is greatly reduced. Meanwhile, the sliding gear is connected with the fixed sleeve fixed on the transmission shaft where the sliding gear is located through the internal spline sleeve, so that the fixed connection of the sliding gear and the transmission shaft is realized, the transmission connection of the sliding gear is realized, the structure is simple and reliable, the sliding connection of the fixed sleeve and the movable sleeve is more reliable due to the adoption of the spline type sliding connection structure, the guiding is more accurate, the sliding gear can rotate and skid on the transmission shaft when the sliding gear is not connected with the internal spline sleeve, the transmission gear shifting effect is realized after the sliding gear is connected, and the transmission conversion is flexible and reliable. Therefore, the vehicle automatic gear shifting transmission assembly is simple and compact in structure, accurate and timely in gear shifting response and good in reliability.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention.
FIG. 2 is a schematic illustration of the present invention with the transmission removed.
FIG. 3 is a partial schematic view of the present invention at the end of a baffle.
FIG. 4 is a schematic view of the mounting positions of the flat plate and the baffle.
FIG. 5 is a schematic structural view of a lever assembly.
FIG. 6 is a partially disassembled schematic illustration of a lever assembly.
Fig. 7 is a schematic diagram of the separation structure of the internal spline housing from the movable and stationary housings.
Description of element numbers: the gear shifting device comprises a motor 1, a worm 2, a cylindrical gear 3, a worm wheel 4, a baffle 5, a magnetic sensor 6, a flat plate 7, a gear shifting shaft 8, a gear shifting column 9, a gear shifting groove 901, a shifting lever shaft 10, a first seat plate 11, a cylindrical spring 12, a sliding connecting plate 13, a fork handle 14 of a first shifting fork, a second seat 15, a fork handle 16 of a second shifting fork, a second seat plate 17, a compression spring 18, a fork head 19 of the first shifting fork, a fork head 20 of the second shifting fork, an inner spline sleeve 21, a fixed sleeve 22, a movable sleeve 23, a first sliding gear 24, a second sliding gear 25, a sliding column 26, a clamping sleeve 27, a mandrel 28, a mounting hole 501, a protruding part 29, a first guide column 30 and a second guide column 31.
Detailed Description
Further advantages and effects of the present invention will become apparent to those skilled in the art from the disclosure of the present invention, which is described by the following specific examples.
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
1-2, a vehicle automatic shifting transmission assembly includes a transmission and a shift lever assembly, a shifter lever assembly, and a shift gear assembly mounted within the transmission. As shown in fig. 3-4, the shift lever assembly comprises a motor 1, a worm wheel 4 worm 2 mechanism, a shift shaft 8 and a shift column 9, wherein an output shaft of the motor 1 is connected with the worm 2, the worm wheel 4 is fixed on the shift shaft 8 to drive the shift shaft 8 to rotate, the shift column 9 is cylindrical and fixed on the shift shaft 8, a circle of shift grooves 901 are formed in the cylindrical surface of the shift column 9 along the circumferential direction of the shift groove, and the cross section of the shift groove 901 is rectangular. The gear shifting column 9 and the worm wheel 4 are sleeved with a flat plate 7 and a baffle plate 5 which are opposite to each other by a gear shifting shaft 8 of the worm wheel 4, the gear shifting shaft 8 can freely rotate after penetrating through the flat plate 7, a pair of magnetic sensors 6 are arranged on the end face of the flat plate 7 towards the baffle plate 5, the baffle plate 5 is fixed on the gear shifting shaft 8, a plurality of pairs of mounting holes 501 are arranged on the end face of the baffle plate 5, and when the worm wheel 4 drives the gear shifting shaft 8 to synchronously rotate together, each pair of mounting holes 501 sequentially pass through the positions opposite to the pair of magnetic sensors 6, so that the magnetic sensors 6 can detect magnetic steel signals in the mounting holes 501 during rotation. At most one magnetic steel is embedded in at least one pair of mounting holes 501 to enable the pair of mounting holes 501 to be neutral sensing positions, one magnetic steel is embedded in each of the other pairs of mounting holes 501 to enable the pair of mounting holes 501 to be non-neutral sensing positions, so that a controller judges whether a gear shifting position is neutral or not through whether magnetic steel signals acquired by a magnetic sensor 6 are two or not, and according to the judgment standard that the number of the magnetic steel signals which are detected to be in pairs from the detected magnetic steel signals which are not in pairs is a gear shifting position, the mode of judging the response gear shifting position can be various based on the principle of the number of the magnetic steel signals, for example, the first pair of the magnetic steel signals which are detected to be neutral when the magnetic steel signals which are not in pairs are detected are 1 gear, the second pair of the magnetic steel signals which are detected to be 2 gear shifting positions, and so on; of course, other marking modes are also possible, such as that every two pairs of magnetic steel signals are changed in increasing/decreasing of a gear. In a specific implementation, the neutral position sensing position is located between two pairs of mounting holes 501 serving as 2 gear and 3 gear, the remaining pair of mounting holes 501 are used as 1 gear, namely, two pairs of magnetic steel signals of two adjacent pairs of mounting holes 501 in the neutral position are respectively 2 gear and 3 gear, and the 1 gear is set at intervals of the neutral position, so that the gear can be promoted rapidly, and the method is more suitable for vehicle driving characteristics.
As shown in fig. 2, 5 and 6, the shift lever assembly comprises a shift lever shaft 10 fixedly arranged, and a first shift fork assembly and a second shift fork assembly which are sleeved on the shift lever shaft 10 and can axially slide along the shift lever shaft 10; the first shifting fork assembly comprises a first seat board 11 which is in a shape like a Chinese character' [, a fork handle 14 which is positioned in an opening of the first seat board 11 and is used for shifting a first sliding gear 24 to be connected and driven, two cylindrical springs 12 and two clamping sleeves 27, wherein the opening of the first seat board 11 faces upwards, the two side plates of the opening of the first seat board 11 are vertically penetrated through by the poking rod shaft 10, the fork handle 14 of the first shifting fork can be sleeved on the poking rod shaft in a sliding manner, a first guide post 30 at the bottom of the fork handle stretches into a strip hole at the inner bottom of the opening of the first seat board 11, the first guide post 30 can slide in the strip hole along the direction parallel to the poking rod shaft 10, the fork handles are in sleeve shapes, two ends of the fork handles are respectively tightly attached to the poking rod shaft 10 and can axially slide along the poking rod shaft 10, one end of each clamping sleeve 27 is provided with a circular groove, one end of each sliding connecting plate 13 is clamped in the circular groove, the other end of each clamping sleeve 27 is buckled on the bottom plate of the first seat board 11, the other can be pressed against the corresponding cylindrical spring 10 along the bottom plate 12, the two end faces of the poking rod 10 are sleeved on the corresponding cylindrical springs 12, and the two end faces of the two side plates are pressed against the corresponding cylindrical springs 12, and the two end faces of the two cylindrical springs 12 are respectively pressed against the corresponding cylindrical springs 12 are sleeved on the two end faces of the side plates 12, and the corresponding cylindrical springs 12 are pressed against the two ends of the corresponding side plates 12, and the two ends are pressed against the cylinder shafts 12, and the corresponding ends are pressed against the cylinder springs 12, and the cylinder shafts 12, and the two ends are tightly 12, and the one end, and the two ends can be tightly and the one end, and the one side and can 18, and the one is. The second shifting fork assembly comprises a second seat board 17 which is in a shape like a Chinese character '[', a fork handle 16 which is positioned in an opening of the second seat board 17 and is used for shifting a second sliding gear 25 to be connected and driven, and a cylindrical compression spring 18, a strip-shaped hole is arranged at the inner bottom of the opening of the second seat board 17, a second guide post 31 is arranged at the bottom of the fork handle 16 of the second shifting fork, the second guide post 31 stretches into the strip-shaped hole and can slide in the strip-shaped hole along the direction parallel to the shifting rod shaft 10, a circular concave cavity is arranged at one end of the second shifting fork handle close to the first shifting fork assembly along the axial direction of the second shifting fork handle, one end of the compression spring 18 in a squeezing state stretches into the concave cavity, and the other end of the compression spring is tightly connected with the inner wall of the side plate at the opening of the second seat board 17. The outsoles of the openings of the ends of the first seat board 17 and the second seat board 17, which are close to each other, are respectively fixed with a sliding column 26, and the sliding columns 26 are positioned in the gear shifting grooves 901 and drive corresponding shifting forks to shift corresponding sliding gears to realize gear shifting when the gear shifting columns 9 rotate.
As shown in fig. 2 and 7, the gear shifting assembly comprises a plurality of transmission shaft assemblies, wherein the transmission shafts of the two transmission shaft assemblies are respectively provided with a first sliding gear 24 and a second sliding gear 25, one ends of the two sliding gears are coaxially connected with a movable sleeve 23, the two sliding gears and the movable sleeve 23 are rotatably sleeved on the transmission shafts respectively, the outer cylindrical surface of the movable sleeve 23 is axially provided with an external spline structure, the transmission shafts are fixedly sleeved with a fixed sleeve 22 at the position close to the movable sleeve 23, the fixed sleeve 22 is provided with external splines, the outer part of the fixed sleeve 22 is also sleeved with an internal spline sleeve 21 in spline fit with the fixed sleeve, and the fork heads of the two fork assemblies are respectively clamped outside the internal spline sleeve 21 and can drive the internal spline sleeve 21 to axially slide to the position simultaneously matched with the movable sleeve 23 and the fixed sleeve 22. For the corresponding spline structures on the inner spline housing 21, the fixed housing 22 and the movable housing 23, the spline tooth shapes are preferably selected to be the same, and the tooth shapes with different sizes can be selected as long as the condition that the inner spline housing 21 can be simultaneously connected with the spline structures outside the movable housing 23 and the fixed housing 22 in a meshed manner is satisfied. That is, in the rotation process of the shift post 9, the shifting fork pushes one of the internal spline sleeves 21 to axially move to a position where the adjacent fixed sleeve 22 and the movable sleeve 23 are bridged, so that the rotatable fit between the corresponding sliding gear and the transmission shaft where the fixed sleeve 22 is positioned is changed into the fixed fit, and the sliding gear starts to work as the transmission gear, thereby realizing the shift speed change. The cylindrical spring 12 makes the corresponding shifting fork move more timely and reliable, when the sliding column 26 moves to the deformation section of the gear shifting groove 901, the sliding column 26 does not simply do circular motion relative to the circle center of the gear shifting column 9, but is assisted by an offset motion which changes along the axial direction of the gear shifting column 9 towards the path of the gear shifting groove 901, so that the sliding column 26 moves towards the axial direction of the gear shifting shaft 8 or the shifting fork moves towards the axial direction of the shifting fork rod, and the shifting fork is more stable under the elastic action of the cylindrical spring 12, and does not shake, so that the inner spline sleeve 21 bridges the fixed sleeve 22 and the movable sleeve 23.
Further, the gear shifting groove 901 on one gear shifting post 9 is provided with two bent groove parts which are bent and arched towards the two ends of the axis of the gear shifting post 9 respectively, the gear shifting groove 901 of the other gear shifting post 9 is provided with one bent groove part which is arched towards the outer part of the gear shifting post 9, and the design ensures that the groove diameter change of the gear shifting groove 901 is consistent with the gear shifting movement direction of the shifting lever assembly, the gear shifting effect is better, and the gear shifting is more accurate.
Further, two cylindrical gears 3 with different sizes are fixed on the part of the output shaft of the motor 1 extending out of the end face of the motor 1 shell, wherein the smaller cylindrical gears 3 are arranged by the end face of the motor 1 shell, a mandrel 28 parallel to the output shaft is further arranged on the end face of the motor 1 shell, and two gears capable of being meshed with the two cylindrical gears 3 on the output shaft are arranged on the mandrel 28. The design ensures that the output of the motor 1 for gear shifting is more stable, the transmission of the worm wheel 4 and worm 2 mechanism is stable, and the promotion effect is realized for the coordination change relation between the gear shifting groove 901 and the sliding column 26.
Further, the fork head is a semicircular arc-shaped strip plate, so that the fork head is convenient to be connected and matched with a circular groove on the inner spline housing 21, and the inner spline housing 21 is rapidly stirred to realize the transmission connection of the sliding gear and a transmission shaft where the sliding gear is positioned.
Further, the part of the sliding connecting plate 13 clamped in the annular groove is of a semicircular arc slat structure, the part buckled on the bottom plate of the first seat plate 11 is pi-shaped, two sides of the middle part of the bottom plate of the first seat plate 11 outwards extend to form limiting protruding parts 29, the protruding parts 29 separate and isolate the two sliding connecting plates 13, so that the sliding connecting plate slides more stably, meanwhile, a better guiding effect is achieved for axial sliding of the shifting fork, and the stable accuracy of gear shifting is improved.
Further, the end parts of the transmission shafts where the two sliding gears are located are respectively provided with a rotation speed sensor used for detecting the rotation speed of the transmission shafts, and after signals acquired by the rotation speed sensors are transmitted to the controller, the controller drives the motor 1 to rotate. The structural design can realize manual and automatic integration when shifting gears, and can adopt an automatic speed changing system with the combination of the rotation speed sensor and the controller besides directly installing a control switch to be connected with the motor 1.
The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.
Claims (4)
1. An automatic vehicle shift transmission assembly, characterized in that: comprises a shift lever assembly, a shift lever assembly and a shift gear assembly;
the gear shift lever assembly comprises a motor, a worm gear mechanism, a gear shift shaft and a gear shift column, wherein an output shaft of the motor is connected with a worm, a worm wheel is fixed on the gear shift shaft to drive the gear shift shaft to rotate, the gear shift column is cylindrical and fixed on the gear shift shaft, and a circle of gear shift groove is formed in the cylindrical surface of the gear shift column along the circumferential direction of the cylindrical surface of the gear shift column; a flat plate and a baffle plate which are opposite to each other are sleeved on a gear shifting shaft between a gear shifting column and a worm gear by the worm gear, the gear shifting shaft can freely rotate after passing through the flat plate, a pair of magnetic sensors are arranged on the end face of the flat plate, the baffle plate is fixed on the gear shifting shaft, a plurality of pairs of mounting holes are arranged on the end face of the baffle plate, when the worm gear drives the gear shifting shaft to synchronously rotate together, each pair of mounting holes sequentially pass through the positions opposite to the pair of magnetic sensors, one magnetic steel is embedded in one pair of mounting holes at most so that the pair of mounting holes are neutral sensing positions, and one magnetic steel is embedded in each of the other pairs of mounting holes so that the pair of mounting holes are non-neutral sensing positions;
the shifting lever assembly comprises a shifting lever shaft fixedly arranged, and a first shifting fork assembly and a second shifting fork assembly which are sleeved on the shifting lever shaft and can axially slide along the shifting lever shaft; the first shifting fork assembly comprises a first seat board in a' shape, a fork handle, two cylindrical springs and two clamping sleeves, wherein the fork handle is positioned in an opening of the first seat board and is used for shifting a first shifting fork of a first sliding gear for connecting and driving, the opening of the first seat board is upward, a shifting rod shaft vertically penetrates through two side plates of the opening of the first seat board, the fork handle of the first shifting fork can be sleeved on the shifting fork shaft in an axial sliding manner, a first guide column at the bottom of the fork handle stretches into a strip hole in the inner bottom of the opening of the first seat board, the first guide column can slide in the strip hole along the direction parallel to the shifting rod shaft, the fork handle is sleeve-shaped, the two ends of the fork handle are respectively tightly attached with the clamping sleeves which are sleeved on the shifting rod shaft and can axially slide along the shifting rod shaft, one end of each clamping sleeve is clamped in the annular groove, the other end of each sliding connecting plate is buckled on a bottom plate of the first seat board and can axially slide along the shifting rod shaft, the two cylindrical springs are respectively sleeved on the shifting rod shaft in the axial direction, and the two cylindrical springs are compressed between the corresponding side plates and the corresponding clamping sleeves; the second shifting fork assembly comprises a second seat plate in a shape of a' [, a fork handle and a cylindrical compression spring, wherein the fork handle and the cylindrical compression spring are both positioned in an opening of the second seat plate and are used for stirring a second shifting fork for connecting and driving a second sliding gear, a strip-shaped hole is formed in the inner bottom of the opening of the second seat plate, a second guide column is arranged at the bottom of the fork handle of the second shifting fork, the second guide column stretches into the strip-shaped hole and can slide in the strip-shaped hole along a direction parallel to a shifting rod shaft, a circular concave cavity is formed in one end of the second shifting fork handle close to the first shifting fork assembly along the axial direction of the second shifting fork handle, one end of the compression spring in a extrusion state stretches into the concave cavity, and the other end of the compression spring is tightly connected with the inner wall of a side plate at the opening of the second seat plate; the outer bottoms of the opening parts at the ends, close to the first seat board and the second seat board, of the first seat board and the second seat board are respectively fixedly provided with a sliding column, and the sliding columns are positioned in the gear shifting grooves and drive corresponding shifting forks to shift corresponding sliding gears to realize gear shifting when the gear shifting columns rotate;
the gear shifting assembly comprises a plurality of transmission shaft assemblies, wherein the transmission shafts of the two transmission shaft assemblies are respectively provided with a first sliding gear and a second sliding gear, one ends of the two sliding gears are coaxially connected with a movable sleeve, the two sliding gears and the movable sleeve are rotatably sleeved on the transmission shaft where each sliding gear is positioned, the outer cylindrical surface of the movable sleeve is axially provided with an external spline structure, the transmission shaft is fixedly sleeved with a fixed sleeve at a position close to the movable sleeve, the fixed sleeve is provided with an external spline, the outside of the fixed sleeve is also sleeved with an internal spline sleeve matched with the external spline, and a shifting fork head is clamped outside the internal spline sleeve and can drive the internal spline sleeve to axially slide to a position matched with the movable sleeve and the fixed sleeve;
the neutral sensing position is positioned between two pairs of mounting holes serving as 2 gear and 3 gear, and the rest pair of mounting holes serve as 1 gear;
the fork head is a semicircular arc slat.
2. The vehicle automatic shift transmission assembly of claim 1, wherein: the part of the motor output shaft extending out of the motor shell end face is fixed with two cylindrical gears with different sizes, the smaller cylindrical gears are arranged by the motor shell end face, the motor shell end face is also provided with a mandrel parallel to the output shaft, and the mandrel is provided with two gears which can be meshed with the two cylindrical gears on the output shaft respectively.
3. The vehicle automatic shift transmission assembly of claim 2, wherein: the sliding connecting plate is clamped in the annular groove and is of a semicircular arc slat structure, the part buckled on the bottom plate of the first seat plate is of a pi-shaped structure, two sides of the middle part of the bottom plate of the first seat plate outwards extend to form limiting protruding parts, and the protruding parts separate and isolate the two sliding connecting plates.
4. The vehicle automatic shift transmission assembly of any one of claims 1, 2, 3, wherein: the end parts of the transmission shafts where the two sliding gears are located are respectively provided with a rotation speed sensor used for detecting the rotation speed of the transmission shafts, and the rotation speed sensors acquire signals and transmit the signals to the controller so that the controller drives the motor to rotate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811592124.8A CN109611545B (en) | 2018-12-25 | 2018-12-25 | Automatic gear shifting transmission assembly for vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811592124.8A CN109611545B (en) | 2018-12-25 | 2018-12-25 | Automatic gear shifting transmission assembly for vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109611545A CN109611545A (en) | 2019-04-12 |
| CN109611545B true CN109611545B (en) | 2023-06-16 |
Family
ID=66011514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811592124.8A Active CN109611545B (en) | 2018-12-25 | 2018-12-25 | Automatic gear shifting transmission assembly for vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109611545B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113007287B (en) * | 2021-03-02 | 2022-04-19 | 李渝 | Hollow gear set suspension gearbox with super multi-gear |
| CN113389897A (en) * | 2021-06-08 | 2021-09-14 | 重庆隆鑫通航发动机制造有限公司 | Gear shifting mechanism and engine |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200951326A (en) * | 2008-06-11 | 2009-12-16 | Kwang Yang Motor Co | Gear-shifting structure of vehicle |
| WO2011139264A2 (en) * | 2010-05-03 | 2011-11-10 | Brp-Powertrain Gmbh & Co Kg | Vehicle transmission |
| CN103363099B (en) * | 2012-03-29 | 2015-08-19 | 广西玉柴机器股份有限公司 | The electronic worm drive mechanism of electric control mechanical type automatic speed variator |
| CN204852306U (en) * | 2015-07-15 | 2015-12-09 | 徐州南普机电科技有限公司 | Information acquisition device of electric motor car two speed transmission |
| CN209511097U (en) * | 2018-12-25 | 2019-10-18 | 重庆先友科技开发有限公司 | A kind of vehicle automatic shifting transmission assembly |
-
2018
- 2018-12-25 CN CN201811592124.8A patent/CN109611545B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN109611545A (en) | 2019-04-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109611545B (en) | Automatic gear shifting transmission assembly for vehicle | |
| JP5751932B2 (en) | Speed change mechanism for manual transmission | |
| EP1923683A1 (en) | Rotation detector and torque sensor | |
| CN109838513B (en) | Automatic gear shifting driving system for vehicle | |
| US20050241425A1 (en) | Shift system for boat propulsion unit | |
| WO2000075006A1 (en) | Power-assisted bicycle | |
| EP1120589B1 (en) | Automated shift select apparatus for a change speed transmission | |
| SE528898C2 (en) | Shift mechanism for manual gearbox of vehicle, has gear selector whose transverse and longitudinal movements actuate shift mechanism to shift gears | |
| CN102758912A (en) | Gear shift system for electric vehicle | |
| CN104999911A (en) | Shift device for transmission | |
| KR0169952B1 (en) | Gear position sensor | |
| US20090277293A1 (en) | Device for Synchronization and Engagement of a Gear Transmission of a Motor Vehicle | |
| CN109838552A (en) | Two gear pure electric automobile shifter of transmission and process for gear | |
| CN102770692A (en) | Transmission | |
| US7635054B2 (en) | Clutch actuator, engine unit, and saddle type vehicle | |
| CN209604492U (en) | A kind of vehicle fluid drive drive system | |
| DE102010028643A1 (en) | Electric bicycle transmission for detecting torque and associated method for electric bicycles for detecting torque | |
| CN209511097U (en) | A kind of vehicle automatic shifting transmission assembly | |
| CN202368630U (en) | Steering return device for steering wheel | |
| JP2006143216A (en) | Power-assisted bicycle | |
| CN101865282B (en) | Reverse-gear pull-pin gear shift system with function of linkage of self-locking and interlocking | |
| WO2002076813A1 (en) | Rotational-speed sensor and power-assisted bicycle with rotational-speed sensor | |
| CN210531592U (en) | Select gearshift, derailleur and vehicle | |
| CN210218645U (en) | Monostable knob selector that can automatic re-setting | |
| US20090260471A1 (en) | Transmission Unit Provided with a Control Device for a Motor Vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |