CN111895047B

CN111895047B - Multi-stage speed-changing transmission device of spherical bevel gear

Info

Publication number: CN111895047B
Application number: CN201910404505.7A
Authority: CN
Inventors: 陈驰川
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-05-06
Filing date: 2019-05-06
Publication date: 2023-02-03
Anticipated expiration: 2039-05-06
Also published as: CN111895047A

Abstract

A multi-stage speed-changing transmission device of spherical bevel gears is provided with a ring turntable (3) cavity, a plurality of bevel gears which are meshed with each other and rotate and generate different gear shaft rotating speeds due to different tooth numbers of the bevel gears are arranged in the cavity, and when the gear shaft of a certain gear bevel gear is connected to a synchronous sleeve (6), the rotating speed of the gear bevel gear adjusts the driving speed of an automobile to rise and fall. The gear can be shifted automatically or manually, and the manual control hand lever (23) is linked with the rack (22), the corner gear (21) and the circular ring turntable (3) to rotate by a certain gear center circle rotation angle, namely, the gear shifting is completed. The number of teeth of each bevel gear is distributed in the same diameter in the cavity of the circular ring turntable (3) and is gradually increased and decreased to perform multi-speed transmission, and the multi-speed transmission is applied to the load transmission of the first-gear bevel gear on an automobile, and other gears rotate in a no-load mode. When an intermediate gear provided with a gear shaft is connected with the synchronous sleeve (6), the automobile backs a car. When the synchronous sleeve (6) is separated from any gear shaft, the automobile slides by inertia, the braking and the stopping are convenient and labor-saving, and the energy-saving and obvious benefits are achieved.

Description

Multi-stage speed-changing transmission device of spherical bevel gear

Technical Field

A multi-stage speed-varying driver with spherical bevel gears is composed of multiple bevel gear pairs on the spherical surface of circular ring, and the speed-varying gears for each bevel gear pair.

The multi-stage speed-changing transmission device of the spherical bevel gear utilizes an inner cavity of a circular turntable to be meshed with a plurality of bevel gears to keep rotating, wherein a gear shaft of one bevel gear is connected to an output shaft of an automobile gearbox through a synchronous sleeve or is applied to multi-shaft processing equipment. The multi-gear shifting speed-changing automobile gearbox output mechanism has the advantages that the application is wide, the benefit is obvious, and the multi-gear shifting speed-changing driving of the automobile can be realized only by manually or automatically adjusting the circle center angle determined by rotating the circular ring turntable and connecting the circular ring turntable to the automobile gearbox output mechanism. The multifunctional energy-saving transmission device is applied to other transmission devices, has multiple functions, is simple, convenient and compact in structure, improves the bearing capacity, efficiency and service life, is stable and reliable, and has the energy-saving effect of reducing cost.

Background

The high efficiency that bears of gear drive height, but multistage variable speed multiaxis structure is complicated, and overall dimension is great, and the motor transmission shifts and backs a car and is convenient inadequately, easily the error with control fatigue. Especially, the stepless speed changer and the hydraulic mechanical conversion adopted for automobile speed change reduce the transmission efficiency, increase the extra kinetic energy consumption and the use cost, and also influence the safety performance.

Disclosure of Invention

A multi-stage speed-varying driver with spherical bevel gears features that multiple bevel gears with different tooth numbers are engaged in a rotary cavity of a ring turntable, and when the gear shaft of a bevel gear is linked to the output mechanism of speed variator of car, the speed of car can be regulated.

The multi-stage variable transmission is characterized in that a plurality of gears with the same modulus and the number of teeth are arranged in a gradually increasing or gradually reducing manner to form a circular ring arrangement, and an output shaft connected with a gearbox is subjected to rotating speed step by step lifting. Only the proper gear is selected, and the automobile is more comfortable, safe, stable and reliable in running.

The speed change and gear shift adjustment is controlled manually or automatically, and the automatic speed change control is like the lifting of the elevator floor. Here, manual speed change is described in detail, the structure is simple and convenient, and gear shifting is rapid.

The gear shaft of a certain gear bevel gear works under load, the rest gear shafts rotate in no-load, and the rotation speed change of a new gear is selected, so that the synchronous sleeve of the gearbox or the output shaft mechanism is firstly separated from the original gear shaft, then the circular rotating disc is rotated to a determined central circular angle, namely, the front and back required angular positions of the hand lever are adopted to correspond to the front and back displacement during manual operation, the linked rack drives the corner gear, the (electromagnet) button is released after the circular rotating disc is rotated to the required angle, the synchronous sleeve and the new gear shaft are combined into a whole, and the gearbox or the output mechanism realizes the variable speed transmission.

According to the requirement of transmission speed change, the modulus and the tooth number of each gear and the diameter size in the cavity of the circular turntable are determined, and the speed change range is usually five-to-nine-gear lifting. Because the left and right adjacent continuous meshing transmission is carried out, the rotating speeds at intervals are in the same direction, and the reverse gear only needs one gear, namely a slow reverse gear is selected to manufacture a gear shaft which is axially combined with the synchronous sleeve so as to lead the wheels to rotate reversely and reverse.

The motor or power of the multi-stage speed-changing transmission device of the spherical bevel gear continuously rotates, and after the synchronous sleeve is disengaged from the gear shaft, the output shaft slides by inertia and stops when braking, so that the control error is avoided, and the impact is reduced.

The ring turntable is fully filled with gears, a central bevel gear is connected with a motor shaft or a power shaft, a left end cover and a right end cover fully seal the ring turntable with oil for lubrication, and the ring turntable is supported on a rotatable left bearing, a rotatable right bearing and a frame seat, the ring turntable is meshed with a rack through a corner gear, after the central circular angle required by controllable rotation is controlled, the ring turntable is positioned through a pin hole and a pin shaft, the ring turntable is automatically or manually controlled to rotate for a certain angle during gear shifting, then the ring turntable is movably positioned by a positioning pin, and each transmission part enters or outputs oil seal.

A plurality of bevel gears in the circular turntable cavity are meshed with each other to rotate respectively, and the multi-gear lifting mechanism is applied to automobile gear shifting and has multi-stage speed change to realize multi-gear lifting of automobile driving speed. The transmission mechanism is applied to other transmissions, has multiple functions or performs multi-shaft synchronous rotation transmission, improves the production efficiency, and improves the manufacturing cost and the using cost with compact structure and low efficiency.

Drawings

FIG. 1 is a view of a structure of a multi-stage transmission of a spherical bevel gear

FIG. 2 is a sectional view of a spherical bevel gear multi-speed transmission

FIG. 3 is a schematic view of the operation parts of a multi-speed transmission of a spherical bevel gear

FIG. 4 is a schematic view of a spherical bevel gear multi-stage transmission with a corner gear and a rack

FIG. 5 is a schematic view of a control member such as a hand lever and a rack of a spherical bevel gear multistage transmission

FIG. 6 is a schematic view of the positioning member of the external form of the multi-speed transmission of the spherical bevel gear

Fig. 7 is a structural layout diagram of a multi-stage speed-changing transmission device of a spherical bevel gear, wherein a motor can be arranged below or above the multi-stage speed-changing transmission device, a motor shaft is connected with central bevel gears (10 and 11) of a circular turntable (3) and rotates with bevel gears meshed with the central bevel gears, when in gear shifting, a synchronizing sleeve (6) is separated from a co-rotating gear shaft, then a hand lever (23) is displaced to drive a rack (22) to move, after the meshed corner gears (21) and the circular turntable (3) rotate for a required rotation central circular angle, positioning buttons are loosened, the synchronizing sleeve (6) is combined with a new gear shaft, and positioning pins and pin holes of the positioning buttons are firmly combined, namely, the speed-changing gear shifting is completed.

In fig. 1, a first-gear bevel gear, 2, an intermediate gear, 3, a circular turntable, 4, a second-gear bevel gear, 5, an intermediate gear, 6, a synchronous sleeve mechanism, 7, a third-gear bevel gear, 8, an intermediate gear, 9, a fourth-gear bevel gear, 10, a central bevel gear II,11, a central bevel gear I,12, a reverse-gear intermediate gear, 13, an oil seal, 14, a bearing, 15, a fifth-gear bevel gear, 16, a central rotating shaft or a spindle.

In fig. 2, 3, a circular turntable, 7, a three-gear bevel gear, 10, a central bevel gear II,11, a central bevel gear I,16, an input gear shaft, 17, an end cover, 18, a supporting spindle, 19, a bearing seat, 20 and a bearing seat.

In fig. 3, 21, corner gear, 22, rack.

In fig. 4, the rotation angle of the ring turntable is illustrated by way of example, that is, the diameter D of the distribution circle in the design cavity is calculated by the module of the end surface of the bevel gear, and the proportion of D = the module of the large end of the selected bevel gear × 360/3.1416 is usually selected.

In fig. 5, 21, corner gear, 22, rack, 23, hand lever, 24, and orifice plate.

In fig. 6, 1, a gear shaft, 21, an angle gear, 25, an end cover, 26, a pin hole, 27, a pin shaft mechanism, 28 and an end cover.

Detailed Description

The working principle and the characteristic structure of the embodiment of the multi-stage speed change transmission device of the spherical bevel gear are explained in detail according to the attached drawings:

the ring turntable (3) is internally provided with various bevel gears which are meshed with the intermediate gear to rotate, the motor is connected with the central bevel gear I (11) and the central bevel gear (10) and the three-gear bevel gear (7) which are coaxial, the gear shaft is combined with the synchronous sleeve (6) to drive the output shaft of the automobile gear box, the automobile runs at a certain speed by the transmission of the gear rotating speed, when the synchronous sleeve (6) is controlled to be disengaged from the gear shaft, the hand lever (23) and the connected rack (22) automatically or manually rotate the corner gear (21), namely the ring turntable (3), the gear shaft of the bevel gear to be shifted is combined with the synchronous sleeve to drive the rotating speed with variable speed, and finally the automobile is driven to shift up and down.

Two end covers (25, 28) of the circular ring turntable (3) are sealed and lubricated by oil, a gear shaft of a bevel gear except a certain gear is combined with the synchronous sleeve (6) to work, and other bevel gears run in no-load mode. When the circular ring turntable (3) works in a transmission mode, the positioning pin hole (26) and the pin shaft mechanism (27) are positioned, and the circular ring turntable (3) is firmly fixed.

The entering or the releasing of each positioning structure pin shaft can be controlled by adopting the movement of an electromagnet spring, a synchronous sleeve (6) is combined with or released from a gear shaft by the attraction of the spring and the electromagnet through a small-modulus gradually-opened line spline, and the combination and the releasing are stable due to the equidirectional rotation, and the energy-saving benefit is achieved when each bevel gear is in no-load by utilizing the inertia sliding.

The circular ring turntable (3) is compact in structure, the number of the intermediate gears is small, the overall dimension is small, and only one intermediate gear (12) is needed to be made into a gear shaft small module spline to be combined with the synchronous sleeve (6) to drive in a backing mode.

The module of the multi-stage variable speed transmission device of the spherical bevel gear is determined according to the power, the diameter of the inner cavity of the circular turntable (3) is calculated according to the module, and the high bearing capacity and the use benefit of multi-stage variable speed are realized by the small module and the long tooth surface.

Principle and technical features of operation

The multi-stage speed-changing transmission device of the spherical bevel gear has multiple innovative structural characteristics, a plurality of gear shafts which are meshed with each other and generate the bevel gears according to different numbers of the gear teeth are arranged in a cavity of the circular rotating disc (3) and have different rotating speeds, and when the gear shaft of a certain gear bevel gear is combined with the synchronous sleeve (6), the gear shaft is input to an output shaft of the gear box according to the rotating speed to complete the running speed of an automobile so as to obtain the lifting speed-regulating gear shifting. The automobile gear box is characterized in that a central bevel gear I (11) and a central bevel gear II (10) drive a bevel gear (7) by a motor or other power sources, the left and right gears which are meshed with each other rotate completely, and a certain-gear bevel gear drives an output shaft in an automobile gear box to form running speed gear shifting lifting by matching an involute spline of a gear shaft with a spline hole of a synchronous sleeve (6) at the same rotating speed.

The automatic or manual control speed change gear shifting is adopted, the synchronous sleeve (6) is separated from the original bevel gear shaft, the hand lever (23) is operated to displace the rack (22), the meshed corner gear (21) simultaneously rotates the circular ring turntable (3) to the required circle center angle, then the hand lever (23) is positioned and combined with the pore plate (24), and the circular ring turntable (3) is simultaneously combined with the pin shaft mechanism (27) through the pin hole (26) to firmly position the circular ring turntable (3).

The rotation speeds of the bevel gears (1, 4, 7, 9 and 15) and the intermediate gears (2, 5, 8 and 12) in the cavity of the circular turntable (3) are in positive and negative corresponding rotation, so that when an automobile backs, a gear shaft station of the reversing intermediate gear (12) in the cavity is rotated to be combined with the synchronous sleeve (6) from the circular turntable (3), and the automobile backs, because the number of teeth of the reversing intermediate gear (12) is more, the gear shaft rotation speed is low, and backing is moderate.

The circular ring (3) is a machine body, the bevel gear modulus and the tooth surface length of the inner cavity are selected according to the power, the small modulus and the long tooth surface are commonly used to manufacture five-to nine-gear speed change, the structure is compact, the manufacturing and maintenance cost is low, and the benefit is remarkable.

Claims

1. A multi-stage speed-changing transmission device of spherical bevel gears is provided with a plurality of meshed bevel gears arranged in a cavity of a circular turntable (3) and rotates at variable speed according to different tooth numbers of the gears, and is characterized in that: the automatic transmission comprises a first-gear bevel gear (1), a first intermediate gear (2), a circular turntable (3), a second-gear bevel gear (4), a second intermediate gear (5), a synchronous sleeve (6), a third-gear bevel gear (7), a third intermediate gear (8), a fourth-gear bevel gear (9), a central gear II (10), a central gear I (11), a reverse-gear intermediate gear (12), a fifth-gear bevel gear (15) and a central rotating shaft or spindle (16), wherein the first-gear bevel gear and the second-gear bevel gear are sequentially connected and driven by the central rotating shaft to rotate; when one of the first-fifth-gear bevel gears (1, 4, 7, 9, 15) is connected with the synchronous sleeve (6), namely the bevel gear rotating speed and torque of the gear are output, and the other bevel gears are in idle running.

2. A spherical bevel gear multistage variable speed drive as claimed in claim 1, wherein: one-to-five-gear bevel gears (1, 4, 7, 9 and 15) in the cavity of the circular turntable (3) rotate in the right direction; the intermediate gears (2, 5, 8 and 12) which are separated rotate leftwards, and only the intermediate gear (12) of the reverse gear is made into a gear shaft which is connected with the synchronous sleeve (6) when backing a car and then is used as the reverse gear; the number of teeth of the first-to-fifth-gear bevel gears (1, 4, 7, 9 and 15) is gradually increased and decreased, so that multi-stage variable-speed gear shifting is realized; the steering of each intermediate gear (2, 5, 8, 12) and the steering of each bevel gear (1, 4, 7, 9, 15) are reversed, each bevel gear (1, 2, 7, 9, 15) of the first gear to the fifth gear is provided with a gear shaft, the intermediate gear (12) of the reverse gear is also provided with a gear shaft, the gear shaft of the gear can be changed in position for transmission after being combined with the synchronous sleeve (6) according to the requirement during speed change adjustment, and the intermediate gear (12) with the reverse gear is made to have more teeth, so that the reverse rotation speed is slower, and the running is safer and more reliable.

3. A spherical bevel gear multistage variable speed drive as claimed in claim 1, wherein: the manual control speed change adopts a simple hand lever (23) and a pore plate (24) to move a rack (22) by a corner gear (21), namely, the circular ring turntable (3) is linked to integrally rotate by a certain central circle angle, after a synchronous sleeve (6) is combined with a certain gear shaft, pins on the hand lever (23) enter the pore plate (24) and pin holes (26) of the circular ring turntable (3) to be combined with a pin shaft (27), and the circular ring turntable (3) operates stably and reliably in transmission.

4. The spherical bevel gear multistage variable transmission device according to claim 1, wherein: the multistage variable-speed transmission is adopted, the modulus of the bevel gear is determined according to the power or load, the diameter of the inner cavity of the circular turntable (3) is designed according to the modulus, the multistage bevel gear multistage variable-speed transmission is realized by using a small-modulus long tooth surface, the driving speed of an automobile is increased and decreased, and the automobile is safe and comfortable to drive.