CN216715131U

CN216715131U - Automobile gear shifting speed changing device

Info

Publication number: CN216715131U
Application number: CN202220128895.7U
Authority: CN
Inventors: 柳华平; 陈斌
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-01-18
Filing date: 2022-01-18
Publication date: 2022-06-10
Anticipated expiration: 2032-01-18

Abstract

The utility model discloses an automobile gear shifting and speed changing device, which comprises a shifting fork shaft, wherein three shifting forks are connected onto the shifting fork shaft in a sliding manner, a shifting groove is formed in each shifting fork, a shifting part is arranged in each shifting groove, one end of each shifting fork is connected with a control block, each control block is provided with a control groove, a control rod is arranged in each control groove in the middle position, a shifting block is connected to the other end of each shifting fork in a clamping manner, three shifting blocks penetrate through the first rotating shaft and are connected with the first rotating shaft in a sliding manner along the axial direction of the first rotating shaft, the first rotating shaft is positioned on two sides of each shifting block and is respectively connected with variable gears with different sizes in a rotating manner, clamping parts are arranged at two ends of each shifting block, a second rotating shaft is arranged on one side of the first rotating shaft in parallel, a matching gear which is respectively meshed with the variable gears is fixedly connected onto the second rotating shaft, one end of the second rotating shaft is connected with an automobile driving mechanism in a transmission manner, and the first rotating shaft is connected with an automobile movement mechanism; the gear shifting speed changing device is simple in structure, convenient to control and long in service life.

Description

Automobile gear shifting speed changing device

Technical Field

The utility model relates to the technical field of gear shifting and speed changing, in particular to a gear shifting and speed changing device for an automobile.

Background

The gear shifting is a short-term method for operating a gear lever, and refers to an operation process that a driver continuously changes the position of the gear lever along with road conditions and automobile speed changes through psychological and physiological motions in various aspects. In the long-term driving process, the name of the automobile is concise and direct, so that the automobile is popular. The frequency of use is very high. And how skilled the operation (especially for manual transmission automobiles) directly affects the driving safety of people. At present, in a gear shifting mechanism of a multi-gear transmission, one shifting fork shaft is generally provided with one shifting fork, each shifting fork realizes the switching of two gears, namely three shifting fork shafts are needed if six gears are realized, and as another two shifting fork shafts are needed to be positioned at initial positions in the movement process of one shifting fork shaft, namely a certain self-locking and interlocking structure is needed among the three shifting fork shafts, the structure is complex, and the occupied space is large; partial prior art directly stirs whole axis of rotation that corresponds with shifting the fork, makes the epaxial change gear global motion that rotates, makes and corresponds change gear and the meshing of appointed cooperation gear and realize the variable speed, and this kind of cooperation relation makes the gear beat the tooth easily in the variable speed process, and is high to the loss degree of gear, influences speed change gear's life, so need a neotype speed change gear that shifts urgently.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a gear shifting and speed changing device for an automobile, which solves the problems in the prior art.

In order to achieve the purpose, the utility model provides the following scheme: the utility model provides an automobile gear shifting and speed changing device, which comprises a shifting fork shaft, wherein three shifting forks are connected on the shifting fork shaft in a sliding manner, a shifting groove is formed in each shifting fork, a shifting part is arranged in each shifting groove, one end of each shifting fork is fixedly connected with a control block through a connecting rod, a control groove is formed in each control block, the three control grooves are arranged side by side, a control rod is arranged in each control groove in the middle position, a shifting block is connected to the other end of each shifting fork in a clamping manner, a first rotating shaft penetrates through the three shifting blocks, the shifting blocks are connected with the first rotating shaft in a sliding manner along the axial direction of the first rotating shaft, the two sides of each first rotating shaft are respectively and rotatably connected with variable gears with different sizes, the two ends of each shifting block are provided with clamping parts, and one side of the first rotating shaft is provided with a second rotating shaft in a parallel manner, and the second rotating shaft is fixedly connected with a matching gear which is respectively meshed with the speed change gear, one end of the second rotating shaft is in transmission connection with an automobile driving mechanism, and the first rotating shaft is in transmission connection with an automobile movement mechanism.

Preferably, the gear shifting portion comprises a fixed rod fixedly connected with the shifting fork shaft, the fixed rod penetrates through the shifting fork shaft, sliding grooves are formed in two ends of the fixed rod, clamping balls are connected in the sliding grooves in a sliding mode, first springs are fixedly connected between the clamping balls and the bottoms of the sliding grooves, two sides of the gear shifting grooves correspond to the clamping balls respectively and are provided with three limiting grooves, and the limiting grooves are matched with the clamping balls.

Preferably, a plurality of fixing seats are fixedly connected to the shifting fork shaft, the fixing seats are respectively located on two sides of the shifting fork, and a second spring is fixedly connected between the fixing seats and the shifting fork.

Preferably, an arc-shaped groove is formed in one end, away from the connecting rod, of the shifting fork, an arc-shaped protrusion is fixedly connected to the inner portion of the arc-shaped groove, an annular groove is formed in the circumferential direction of the shifting block, and the arc-shaped protrusion is matched with the annular groove and is in sliding connection with the annular groove.

Preferably, the clamping portion comprises clamping holes formed in two ends of the toggle block, the speed change gear is provided with clamping columns which correspond to the clamping holes and are fixedly connected with the clamping holes, and the clamping columns are matched with the clamping holes.

Preferably, dial the piece with be provided with fixed cover between the first axis of rotation, fixed cover is established the first axis of rotation outside and with first axis of rotation fixed connection, fixed cover outside along a plurality of spacing archs of axis direction fixedly connected with, dial the piece inner wall seted up a plurality of with spacing recess of spacing protruding looks adaptation, dial the piece pass through spacing recess with spacing protruding sliding connection.

Preferably, the control groove is internally and slidably connected with two sliding plates in parallel with the side wall of the control groove, a plurality of third springs are fixedly connected between the sliding plates and the side wall of the control groove, and a limiting part is fixedly connected between the sliding plates and the side wall of the control groove.

Preferably, spacing portion include with control groove lateral wall fixed connection's fixed block, set up the slip chamber in the fixed block, slip intracavity sliding connection has the limiting plate, the limiting plate is kept away from the spacing post of one side fixedly connected with of control groove inner wall, spacing post runs through the fixed block with slide fixed connection.

Preferably, one side of the sliding plate, which is close to the control rod, is provided with an arc-shaped recess matched with the control rod.

The utility model discloses the following technical effects: the control rod is utilized to drive the corresponding control block to move up and down, so that the shifting fork is driven to move up and down, the shifting part slides in the shifting groove, the shifting block is driven to be clamped with the corresponding speed change gear, the designated speed change gear is meshed with the corresponding matched gear, transmission is realized, power transmitted by the automobile driving mechanism is transmitted to the first rotating shaft through the matched gear on the second rotating shaft through the speed change gear, and then the power is transmitted to the moving mechanism to realize shifting and speed changing of the automobile; the gear shifting and speed changing device is reasonable in structure and convenient to control, gear shifting and speed changing can be completed only by arranging one shifting fork shaft, the shifting fork shaft is connected with the designated speed changing gear in a clamping mode through the shifting block, the designated speed changing gear is enabled to complete transmission, the speed changing gear and the matched gear are always in a meshing state, the gear beating phenomenon is not prone to occurring, and the service life of the gear shifting and speed changing device is long.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.

FIG. 1 is a schematic structural view of a shifting transmission of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1;

FIG. 3 is a block diagram illustrating the structure of the control block according to the present invention;

FIG. 4 is a left side view of the control block of the present invention;

FIG. 5 is a schematic view of the fork of the present invention;

wherein: 1-shift fork shaft, 2-shift fork, 3-shift groove, 4-control block, 5-control groove, 6-control rod, 7-shifting block, 8-first rotating shaft, 9-speed change gear, 10-second rotating shaft, 11-matching gear, 12-fixed rod, 13-sliding groove, 14-clamping ball, 15-first spring, 16-limiting groove, 17-fixed seat, 18-second spring, 19-arc groove, 20-arc protrusion, 21-annular groove, 22-clamping hole, 23-clamping column, 24-fixed sleeve, 25-limiting protrusion, 26-sliding plate, 27-third spring, 28-fixed block, 29-limiting plate, 30-limiting column and 31-arc recess.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.

Referring to fig. 1-5, the present invention provides a gear shifting and speed changing device for an automobile, comprising a shift shaft 1, three shift forks 2 slidably connected to the shift shaft 1, shift grooves 3 formed in each shift fork 2, shift portions formed in the shift grooves 3, a control block 4 fixedly connected to one end of each shift fork 2 via a connecting rod, a control groove 5 formed in the control block 4, three control grooves 5 arranged side by side, a control rod 6 arranged in the control groove 5 at a middle position, a shift block 7 engaged with the other end of each shift fork 2, a first rotating shaft 8 through which the three shift blocks 7 pass, the shift block 7 slidably connected to the first rotating shaft 8 along the axial direction of the first rotating shaft 8, a speed changing gear 9 with different dimensions rotatably connected to both sides of the first rotating shaft 8, engaging portions installed at both ends of the shift block 7, a second rotating shaft 10 arranged in parallel to one side of the first rotating shaft 8, the second rotating shaft 10 is fixedly connected with a matching gear 11 which is respectively meshed with the speed change gear 9, one end of the second rotating shaft 10 is connected with an automobile driving mechanism in a transmission mode, and the first rotating shaft 8 is connected with an automobile movement mechanism in a transmission mode. Utilize control lever 6 to drive corresponding control block 4 and carry out up-and-down motion, and then drive shifting fork 2 up-and-down motion, make the portion of shifting gears slide in shift groove 3, and then drive and dial piece 7 and correspond change gear 9 joint, make appointed change gear 9 and the meshing of corresponding mating gears 11, realize the transmission, make the power of automobile drive mechanism transmission pass through mating gears 11 on the second axis of rotation 10 and transmit for first axis of rotation 8 through change gear 9, then transmit power for the motion and realize the variable speed of shifting of car.

Further optimize the scheme, with shift fork axle 1 fixed connection's dead lever 12, dead lever 12 runs through shift fork axle 1 and sets up, and spout 13 has been seted up at dead lever 12 both ends, and sliding connection has joint ball 14 in the spout 13, and fixedly connected with first spring 15 between joint ball 14 and the spout 13 tank bottom, shift groove 3 both sides respectively with joint ball 14 correspond seted up three spacing groove 16, spacing groove 16 and joint ball 14 looks adaptation. The clamping ball 14 is pushed out through the first spring 15, so that the clamping ball 14 is in the limit groove 16, when gear shifting is carried out, the clamping ball 14 can move from the middle position limit groove 16 to the other limit groove 16, an operator can feel gear change conveniently, and meanwhile, the gear cannot be changed easily in the clamping column limit groove 16 of the clamping ball 14, and automatic gear falling is avoided.

Further optimize the scheme, fixedly connected with a plurality of fixing bases 17 on the shift fork axle 1, fixing base 17 is located 2 both sides of shift fork respectively, and fixedly connected with second spring 18 between fixing base 17 and the shift fork 2. Because the second springs 18 are fixed on the two sides of the shifting fork 2, when the pushing force is cancelled, the shifting fork 2 returns to the middle position under the elastic force action of the second springs 18, and the next operation is facilitated.

Further optimization scheme, the one end of pulling fork 2 away from the connecting rod has been seted up arc wall 19, and fixedly connected with arc arch 20 in the arc wall 19, stirring piece 7 circumference have been seted up ring channel 21, arc arch 20 and ring channel 21 looks adaptation and with ring channel 21 sliding connection. The arc-shaped protrusion 20 is slidably connected with the annular groove 21, so that the rotation of the toggle block 7 cannot be influenced, and meanwhile, the toggle block 7 can be driven to move through the annular groove 21, so that the speed change is realized.

Further optimize the scheme, the clamping part includes the clamping hole 22 that sets up at stirring piece 7 both ends, and the fixed connection has the joint post 23 with clamping hole 22 corresponds on the change gear 9, joint post 23 and the looks adaptation of clamping hole 22. Because change gear 9 neutral gear is in the rotating condition, offers joint hole 22 on stirring piece 7, can make joint post 23 and joint hole 22 joint in stirring piece 7 motion process, and then drive stirring piece 7 and rotate, and then realize shifting the variable speed.

Further optimization scheme is provided with fixed cover 24 between stirring piece 7 and first axis of rotation 8, fixed cover 24 cover establish first 8 outside of axis of rotation and with first 8 fixed connection of axis of rotation, fixed cover 24 outside along a plurality of spacing archs 25 of axis direction fixedly connected with, stir 7 inner walls of piece and offer a plurality of spacing recesses with spacing protruding 25 looks adaptation, stir 7 through spacing recess and spacing protruding 25 sliding connection. Through first axis of rotation 8 and fixed cover 24 fixed connection, then let dial piece 7 and slide along the axis on fixed cover 24, be convenient for dial piece 7 and appointed change gear 9 joint, realize the variable speed, can pass through the joint with appointed change gear 9, transmit the power that change gear 9 brought for first axis of rotation 8 through fixed cover 24 and realize the transmission.

In a further optimized scheme, two sliding plates 26 are slidably connected in the control groove 5 in parallel with the side wall of the control groove 5, a plurality of third springs 27 are fixedly connected between the sliding plates 26 and the side wall of the control groove 5, and a limiting part is fixedly connected between the sliding plates 26 and the side wall of the control groove 5. The control rod 6 has a certain buffer space when pushing the corresponding control block 4 to move, so that the phenomenon that the shifting fork 2 reacts quickly to realize speed change and accidents occur due to mistaken collision is avoided.

Further optimize the scheme, spacing portion include with control groove 5 lateral wall fixed connection's fixed block 28, seted up the slip chamber in the fixed block 28, slip intracavity sliding connection has limiting plate 29, limiting plate 29 keeps away from one side fixedly connected with spacing post 30 of control groove 5 inner wall, and spacing post 30 runs through fixed block 28 and slide 26 fixed connection. The limiting plate 29 can only slide in the fixed block 28, so that the maximum distance of the sliding plate 26 from the side wall of the control groove 5 is limited, and the control rod 6 can not enter the designated control groove 5 because the gap between the two sliding plates 26 is too small.

In a further optimized scheme, one side of the sliding plate 26 close to the control rod 6 is provided with an arc-shaped recess 31 matched with the control rod 6. When the control rod 6 moves to the appointed control groove 5, the control rod can slide into the arc-shaped recess 31, so that an operator can feel obvious touch, and the control is convenient for the operator.

The working process of the utility model is as follows: when the control rod 6 does not drive the control block 4 to move, the three shifting blocks 7 are positioned between the two speed change gears 9 and are not in contact with the speed change gears 9, the automobile driving structure drives the second rotating shaft 10 to rotate, further drives the matching gear 11 to rotate, further drives the speed change gears 9 to rotate, and as the speed change gears 9 are rotatably connected with the first rotating shaft 8, the first rotating shaft 8 cannot rotate along with the speed change gears 9, and at the moment, the neutral gear is adopted; when gear shifting and speed changing are needed, only the control rod 6 needs to be controlled to move into the designated control groove 5 and then is pushed upwards or downwards to drive the shifting fork 2 to move upwards or downwards, so that the clamping ball 14 moves into the designated limiting groove 16 from the middle limiting groove 16, the shifting fork 2 is matched with the annular groove 21 through the arc-shaped protrusion 20 to drive the shifting block 7 to move up and down, so that the clamping hole 22 in the shifting block 7 is clamped with the clamping column 23 on the corresponding speed change gear 9, power transmitted by the matching gear 11 is transmitted to the shifting block 7 through the speed change gear 9, the first rotating shaft 8 is driven to rotate through the rotation of the shifting block 7, and gear shifting and speed changing are achieved.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.

Claims

1. A vehicle gear shifting transmission device is characterized in that: the gear shifting fork comprises a shifting fork shaft (1), wherein three shifting forks (2) are connected to the shifting fork shaft (1) in a sliding manner, a shifting groove (3) is formed in each shifting fork (2), a shifting portion is formed in each shifting groove (3), one end of each shifting fork (2) is fixedly connected with a control block (4) through a connecting rod, control grooves (5) are formed in each control block (4), the three control grooves (5) are arranged side by side, a control rod (6) is arranged in each control groove (5) in the middle of each control groove, a shifting block (7) is clamped to the other end of each shifting fork (2), a first rotating shaft (8) penetrates through the three shifting blocks (7), the shifting blocks (7) are connected with first rotating shafts (8) in a sliding manner along the axial direction of the first rotating shafts (8), the first rotating shafts (8) are positioned on two sides of the shifting blocks (7) and are respectively connected with variable speed gears (9) with different sizes in a rotating manner, the joint portion is installed at stirring piece (7) both ends, first axis of rotation (8) one side parallel arrangement has second axis of rotation (10), on second axis of rotation (10) fixedly connected with respectively with change gear (9) meshed cooperation gear (11), second axis of rotation (10) one end transmission is connected with car actuating mechanism, first axis of rotation (8) transmission is connected with car motion.

2. A vehicle gearshift transmission as set forth in claim 1, wherein: the gear shifting portion comprises a fixed rod (12) fixedly connected with a shifting fork shaft (1), the fixed rod (12) penetrates through the shifting fork shaft (1), sliding grooves (13) are formed in two ends of the fixed rod (12), clamping balls (14) are connected in the sliding grooves (13), first springs (15) fixedly connected between the sliding grooves (13) and the bottoms of the grooves, three limiting grooves (16) are formed in two sides of the gear shifting grooves (3) respectively corresponding to the clamping balls (14), and the limiting grooves (16) are matched with the clamping balls (14).

3. A vehicle gearshift transmission as set forth in claim 1, wherein: fixedly connected with a plurality of fixing bases (17) on shifting fork axle (1), fixing base (17) are located respectively shift fork (2) both sides, fixing base (17) with fixedly connected with second spring (18) between shift fork (2).

4. A vehicle gearshift transmission as set forth in claim 1, wherein: pull out fork (2) and keep away from arc wall (19) have been seted up to the one end of connecting rod, arc wall (19) internal fixation is connected with arc arch (20), ring channel (21) have been seted up to stirring piece (7) circumference, arc arch (20) with ring channel (21) looks adaptation and with ring channel (21) sliding connection.

5. A vehicle gearshift transmission as set forth in claim 1, wherein: the joint portion is including offering joint hole (22) at stirring piece (7) both ends, on change gear (9) with joint hole (22) correspond fixedly connected with joint post (23), joint post (23) with joint hole (22) looks adaptation.

6. A vehicle gearshift transmission as set forth in claim 1, wherein: dial piece (7) with be provided with fixed cover (24) between first axis of rotation (8), fixed cover (24) cover is established first axis of rotation (8) outside and with first axis of rotation (8) fixed connection, fixed cover (24) outside is along a plurality of spacing archs (25) of axis direction fixedly connected with, dial piece (7) inner wall seted up a plurality of with the spacing recess of spacing protruding (25) looks adaptation, dial piece (7) and pass through spacing recess with spacing protruding (25) sliding connection.

7. A vehicle gearshift transmission as set forth in claim 1, wherein: two sliding plates (26) are connected in the control groove (5) in a sliding mode and parallel to the side wall of the control groove (5), a plurality of third springs (27) are fixedly connected between the sliding plates (26) and the side wall of the control groove (5), and limiting portions are fixedly connected between the sliding plates (26) and the side wall of the control groove (5).

8. A vehicle gearshift transmission as claimed in claim 7, wherein: spacing portion include with control groove (5) lateral wall fixed connection's fixed block (28), the slip chamber has been seted up in fixed block (28), slip intracavity sliding connection has limiting plate (29), limiting plate (29) are kept away from one side fixedly connected with spacing post (30) of control groove (5) inner wall, spacing post (30) run through fixed block (28) with slide (26) fixed connection.

9. A vehicle gearshift transmission as claimed in claim 7, wherein: one side of the sliding plate (26) close to the control rod (6) is provided with an arc-shaped recess (31) matched with the control rod (6).