CN219888703U

CN219888703U - Gear shifting and transposition mechanism of manual transmission of automobile

Info

Publication number: CN219888703U
Application number: CN202321179446.6U
Authority: CN
Inventors: 张有钱; 张兴江; 庄周; 王建; 陈涛; 肖济江; 黄虎
Original assignee: Chongqing Tsingshan Industrial Co Ltd
Current assignee: Chongqing Tsingshan Industrial Co Ltd
Priority date: 2023-05-16
Filing date: 2023-05-16
Publication date: 2023-10-24
Anticipated expiration: 2033-05-16

Abstract

The utility model discloses a gear shifting and shifting mechanism of an automobile manual transmission, which comprises a transmission box body, a gear shifting shaft assembly and a box body cover, wherein the gear shifting shaft assembly comprises a gear shifting shaft, a forward gear swinging rod, a reverse gear swinging rod, a first return assembly, a second return assembly, wang Zicao, wang Zicao, the forward gear swinging rod and the reverse gear swinging rod are fixed on the gear shifting shaft, one end of the first return assembly is abutted against the inner end surface of the box body cover, the other end of the first return assembly is abutted against the axial end of the reverse gear swinging rod, the other end of the second return assembly is abutted against the axial end of Wang Zicao, and when the gear shifting shaft assembly is switched from neutral gear to forward gear or reverse gear, the first return assembly or the second return assembly is compressed, and when the gear shifting shaft assembly is switched from forward gear or reverse gear to neutral gear, the first return assembly or the second return assembly is opened. The gear shifting mechanism is simple in structure, can realize the gear shifting function of the whole vehicle, ensures that the gear can smoothly return to the neutral gear position from the forward gear or the reverse gear, and provides better gear shifting hand feeling for a driver.

Description

Gear shifting and transposition mechanism of manual transmission of automobile

Technical Field

The utility model relates to the technical field of automobile transmissions, in particular to a gear shifting and transposition mechanism of an automobile manual transmission.

Background

At present, the manual transmission of the automobile commonly used in the market, especially the manual transmission used by a passenger car, is returned to the neutral position by a driver operating handle in the neutral gear returning process, so that a pull rope connected with the handle pulls a shift shaft and a shift finger to return to the neutral position, however, the shift transposition mechanism with the structure is complex in structure, high in manufacturing cost and commonly has a problem: because the gear shifting shaft moves axially and rotates circumferentially in the transmission box when the gear shifting shaft is shifted from neutral gear to forward gear or reverse gear, and the gear shifting finger also moves axially and rotates circumferentially along with the gear shifting shaft, when the gear shifting shaft returns to the neutral gear position from the forward gear or reverse gear position, the gear shifting shaft is driven to return to the neutral gear position only by the self-return inertia of the guy cable, so that the gear shifting shaft and the gear shifting finger cannot be ensured to return to the neutral gear position accurately, and in the face of the situation, a driver can stir the handle for a plurality of times, thereby ensuring that the gear shifting shaft returns to the neutral gear position.

Disclosure of Invention

The utility model provides a gear shifting and shifting mechanism of an automobile manual transmission, which has a simple structure, can realize the gear shifting function of the whole automobile, and simultaneously ensures that the automobile smoothly returns to a neutral gear position from a forward gear or a reverse gear, thereby providing better gear shifting hand feeling for a driver.

The technical scheme for solving the technical problems is as follows:

the utility model provides an automobile manual transmission transposition mechanism that shifts, includes gearbox casing, shift axle subassembly, box lid and gearbox casing fixed connection, but shift axle subassembly is passed the box lid back axial displacement and is arranged in the gearbox casing rotationally with circumference, and shift axle subassembly at least partly expose outside the gearbox casing, shift axle subassembly includes shift axle, forward gear pendulum rod, reverse gear pendulum rod, first return subassembly, second return subassembly, wang Zicao, wang Zicao, forward gear pendulum rod, reverse gear pendulum rod are fixed on the shift axle, forward gear pendulum rod is located between reverse gear pendulum rod and Wang Zicao, and first return subassembly and second return subassembly cover are equipped with the blind hole in the gearbox casing, and the shift axle inserts in the blind hole through the box lid, the other end of first return subassembly is in abutment with the axial end of reverse gear pendulum rod, and the one end of second return subassembly is in abutment with the blind hole tip, and the axial end of Wang Zicao is in abutment with the axial end of reverse gear pendulum rod, and when shifting from first return subassembly or the forward gear pendulum rod to the first return subassembly or the idle gear subassembly, when shifting, the first return subassembly is shifted from the forward gear return subassembly or the first return subassembly or the idle gear subassembly, and is opened.

Further, the gear shifting shaft assembly further comprises a gear shifting rotating arm for providing circumferential rotation acting force for the gear shifting shaft, a transposition rotating arm for providing axial movement acting force for the gear shifting shaft and a dust cover, wherein the dust cover is arranged on the outer end face of the box cover, the gear shifting rotating arm and the transposition rotating arm are respectively connected with the gear shifting shaft, and the gear shifting rotating arm and the transposition rotating arm are exposed out of the dust cover.

Further, the novel gear box comprises a locking steel ball assembly, the locking steel ball assembly comprises a hollow bolt, a steel ball spring, a steel ball bearing and a steel ball bushing, the outer peripheral surface of the hollow bolt is in threaded fit with a box body of the gear box, one end of the steel ball bushing is located in the hollow bolt, the other end of the steel ball bushing is connected with the steel ball, one end of the steel ball spring abuts against the steel ball bushing, the other end of the steel ball spring abuts against the hollow bolt, the steel ball bearing is located between the outer peripheral surface of the steel ball bushing and the inner wall surface of the hollow bolt, one end of the reverse gear swing rod is provided with a reverse gear poking finger, the other end of the reverse gear swing rod is provided with a first waveform surface and a second waveform surface, and the steel ball is in elastic contact with the first waveform surface and the second waveform surface.

Further, still include neutral signal sensor subassembly, neutral signal sensor subassembly includes sensor, magnet support assembly, is used for making the sensor receive the magnetic part that the gearshift shaft is located neutral position, the sensor is installed on the derailleur box, and the sensor is at least partly located the derailleur box inside, and magnet support assembly is fixed on the gearshift shaft, and magnetic part installs on magnet support assembly.

Further, the gear shifting device further comprises a king groove and a gear shifting stop pin, wherein the Wang Zicao is fixed on a gear shifting shaft, the gear shifting stop pin is fixed on a gearbox body, and Wang Zicao is matched with the gear shifting stop pin.

The gear shifting and transposition mechanism of the manual transmission of the automobile has the beneficial effects that:

according to the utility model, the first return component and the second return component are respectively sleeved on the gear shifting shaft, the first return component is positioned between the reverse gear swing rod and the inner wall of one end of the box body, the second return component is positioned between the forward gear swing rod and the inner wall of the other end of the box body, the reverse gear swing rod completes the reverse gear toggle action in the process of switching the gear shifting shaft component from the neutral gear, meanwhile, the reverse gear swing rod compresses the first return component to provide a return force for switching the gear shifting shaft component from the reverse gear to the neutral gear, a driver can more accurately feel that the gear shifting shaft component is switched from the reverse gear to the neutral gear, the forward gear swing rod forwards the toggle action in the process of switching the gear shifting shaft component from the neutral gear, meanwhile, the forward gear swing rod compresses the second return component to provide a return force for switching the gear shifting shaft component from the forward gear to the neutral gear, and the driver can more accurately feel that the gear shifting shaft component is switched from the reverse gear to the neutral gear position, and the problem that a gear shifting mechanism in the prior art cannot accurately return to the gear shifting position in the gear shifting process is avoided.

Drawings

FIG. 1 is a front view of a manual transmission shift and index mechanism of an automotive vehicle in accordance with the present utility model mated with a transmission housing;

FIG. 2 is a cross-sectional view of the manual transmission shift and index mechanism of the present utility model mated with a transmission housing;

FIG. 3 is a perspective view of the shift indexing mechanism of the manual transmission of the automobile of the present utility model;

FIG. 4 is a cross-sectional view of a shift indexing mechanism of the manual transmission of the present utility model;

FIG. 5 is an enlarged view of portion A of FIG. 2;

FIG. 6 is a schematic diagram of the cooperation of the forward stop rocker and the locking ball assembly;

fig. 7 is a perspective view of the manual transmission shift position mechanism of the present utility model mated with a shift fork.

The reference symbols in the drawings:

the transmission case 1, the blind hole 1a, the case cover 2, the cover pin 2a, the shift shaft 3, the forward shift lever 4a, the reverse shift lever 5a, the first wavy surface 5b, the second wavy surface 5c, the shift rocker arm 6, the shift rocker arm 7, the dust cover 8, the hollow bolt 9, the steel ball spring 10, the steel ball 11, the steel ball bearing 12, the steel ball bushing 13, the sensor 14, the magnet bracket assembly 15, the magnetic parts 16, wang Zicao 17, the shift stopper pin 18, the first spring 20, the first washer 21, the second spring 22, the second washer 23, the bearing 30, the fifth-sixth shift fork frame 40, the first-second shift fork frame 41, the third-fourth shift fork frame 42, and the reverse shift fork frame 43.

Detailed Description

The utility model is further described with reference to the drawings and detailed description.

Firstly, it is to be noted that: for the purpose of making the technical solution of the present utility model clearer, the technical solution of the present utility model will be more clearly and completely described below with reference to the accompanying drawings, and it is obvious that the words of "upper end", "lower end", "axial end", "radial end" and the like used in the description represent the azimuth words of the technical solution of the present utility model, which are also merely further and more clearly described according to the accompanying drawings, and do not represent all the embodiments of the present utility model. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model. Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model.

As shown in fig. 1 to 7, the manual transmission shifting transposition mechanism for the automobile comprises a transmission box body 1, a shifting shaft assembly and a box body cover 2, wherein the box body cover 2 is fixedly connected with the transmission box body 1, the shifting shaft assembly can axially move and circumferentially rotate to be arranged in the transmission box body 1 after passing through the box body cover 2, at least one part of the shifting shaft assembly is exposed out of the transmission box body 1, the shifting shaft assembly comprises a shifting shaft 3, a forward shifting swing rod 4, a reverse shifting swing rod 5, a first return assembly, a second return assembly, wang Zicao, wang Zicao 17, the forward shifting swing rod 4 and a reverse shifting swing rod 5 are fixed on the shifting shaft 3, the forward shifting swing rod 4 is positioned between the reverse shifting swing rod 5 and a reverse gear groove 17, the first return assembly and the second return assembly are sleeved on the shifting shaft 3, a blind hole 1a is formed in the transmission box body 1, the shifting shaft 3 is inserted into the blind hole 1a through the box body cover 2, one end of the first return assembly abuts against the inner end surface of the box body cover 2, the other end of the first return assembly abuts against the first return assembly and the second return assembly is axially pushed against the second return assembly or the second return assembly, and the first return assembly is compressed against the second return assembly from the first end to the second end of the first return assembly or the second return assembly to the second end of the second return assembly is pushed against the idle assembly when the first return assembly is shifted from the first end to the first end or the second end of the return assembly is shifted from the first end to the second end to the end of the return assembly to the first return assembly to the second end of the return assembly to the first return assembly to the end of the axial end is compressed.

In this embodiment, the transmission case further comprises a bearing 30, the bearing 30 is used for supporting the shift shaft 3, at this time, the shift shaft 3 can complete axial movement and circumferential rotation in the transmission case 1, a plurality of cover pins 2a are arranged on the case cover 2, the cover pins 2a are mainly used for accurately mounting and positioning the case cover 2 on the transmission case 1, the first return component comprises a first spring 20 and a first gasket 21, the second return component comprises a second spring 22, the second gasket 23, the first gasket 21 and the second gasket 23 are used for supporting the shift shaft 3, the first gasket is sleeved at one end of the shift shaft 3, the second gasket 23 is sleeved at the other end of the shift shaft 3, the first spring 20 and the second spring 22 are respectively sleeved at two ends of the shift shaft 3, one end of the first spring 20 is abutted against the first gasket 21, the other end is abutted against the reverse gear rocker 5, one end of the second spring 22 is abutted against the second gasket 23, the other end of the second spring is abutted against Wang Zicao, when the driver switches from the reverse gear 5 to the reverse gear, the reverse gear 5 is enabled to move along with the shift shaft 3 a and the axial direction of the shift shaft 3, the reverse gear rocker 5 is enabled to move along with the reverse gear 20, and the reverse gear 5 is enabled to move along with the axial direction of the shift shaft 3, and the reverse gear 20 is enabled to move along with the reverse gear 5, and the reverse gear 5 is gradually and the reverse gear 5 is shifted to the reverse gear frame 20 is shifted to the reverse gear position, and the reverse gear 5 is shifted to the axial position is shifted to the reverse gear position from the reverse gear 5, and the reverse gear position is gradually, and the reverse gear spring 20 is shifted to the reverse gear position 20 and the reverse gear position is gradually, and the reverse gear 5 is shifted to the reverse gear position from the reverse gear 5 to the reverse gear 5 is shown in the axial position 5 and is shown by the reverse gear position 5 and the reverse gear 3 and is shown in the reverse position 5 and is shown in the reverse and the reverse position and is 20 and the reverse the 3 and is 20 and is released; when the driver shifts from the neutral position to the forward gear, the forward gear swing rod 4 moves along with the axial movement and circumferential rotation of the gear shift shaft 3, so that the forward gear shifting finger 4a of the forward gear swing rod 4 shifts the five-six gear fork frame 40/the two-gear fork frame 41/the three-four gear fork frame 42, and further shifts to the forward gear, the second spring 22 is gradually compressed by Wang Zicao while the second spring 22 moves rightwards (according to fig. 1 and 2) along with the gear shift shaft 3 during the whole gear shift, and when shifting from the forward gear position back to the neutral position, the gear shift shaft 3 moves leftwards, wang Zicao moves leftwards along with the gear shift shaft 3, and at this time, the second spring 22 releases its elastic force, thereby urging the gear shift shaft 3 and the king groove 17, and the forward gear swing rod 4 to return to the neutral position.

Preferably, the gear shifting shaft assembly further comprises a gear shifting rotating arm 6 for providing circumferential rotation force for the gear shifting shaft 3, a transposition rotating arm 7 for providing axial movement force for the gear shifting shaft 3, and a dust cover 8, wherein the dust cover 8 is arranged on the outer end face of the box cover 2, the gear shifting rotating arm 6 and the transposition rotating arm 7 are respectively connected with the gear shifting shaft 3, and the gear shifting rotating arm 6 and the transposition rotating arm 7 are exposed outside the dust cover 8.

In the present embodiment, the shift arm 6 and the shift arm 7 are connected to a cable of a shift handle, and the shift and shift process of the present utility model is as follows:

gear shifting: the driver operates the gear shifting handle, the gear shifting rotating arm 6 is driven to rotate through the gear shifting inhaul cable, the gear shifting rotating arm 6 drives the gear shifting shaft 3 to rotate, and accordingly the forward gear swinging rod 4 or the reverse gear swinging rod 5 on the gear shifting shaft 3 rotates, and accordingly the forward gear shifting finger 4a of the forward gear swinging rod 4 shifts the five-six gear fork frame 40/the two-gear fork frame 41/the three-four gear fork frame 42, or the reverse gear shifting finger 5a of the reverse gear swinging rod 5 shifts the reverse gear fork frame 43, and gear shifting is finally completed.

Transposition: the driver operates the gear shifting handle, drives the transposition rotating arm 7 through the gear shifting inhaul cable, and then drives the gear shifting shaft 3 through the transposition rotating arm 7 to realize axial movement, so that transposition is realized. Throughout the shifting process, the shift shaft 3 remains in the blind bore 1a, wherein the maximum distance of the axial displacement of the shift shaft 3, i.e. the depth of the blind bore 1a, is maintained.

Preferably, the automatic transmission device further comprises a locking steel ball assembly, the locking steel ball assembly comprises a hollow bolt 9, a steel ball spring 10, a steel ball 11, a steel ball bearing 12 and a steel ball bushing 13, the outer peripheral surface of the hollow bolt 9 is in threaded fit with the transmission box body 1, one end of the steel ball bushing 13 is located in the hollow bolt 9, the other end of the steel ball bushing 13 is connected with the steel ball 11, one end of the steel ball spring 10 abuts against the steel ball bushing 13, the other end of the steel ball spring 10 abuts against the hollow bolt 9, the steel ball bearing 12 is located between the outer peripheral surface of the steel ball bushing 13 and the inner wall surface of the hollow bolt 9, one end of the reverse gear swing rod 5 is provided with a reverse gear poking finger 5a, the other end of the reverse gear swing rod 5 is provided with a first wavy surface 5b and a second wavy surface 5c, and the steel ball 11 elastically contacts with the first wavy surface 5b and the second wavy surface 5 c.

In this embodiment: because the steel ball 11 is respectively in elastic contact with the first waveform surface 5b and the second waveform surface 5c of the reverse gear swing rod 5, no matter whether the reverse gear swing rod 5 performs reverse gear switching or the forward gear swing rod 4 performs forward gear switching, the steel ball assembly is locked after gear shifting and transposition by the gear shifting shaft 3, and a certain pressure is always kept, so that the steel ball spring 10 presses the steel ball 11 in the grooves of the first waveform surface 5b and the second waveform surface 5c, the rotation range of the gear shifting shaft 3 is limited, and gear release can be effectively prevented.

Preferably, a neutral signal sensor assembly is further included, the neutral signal sensor assembly including a sensor 14, a magnet bracket assembly 15, a magnetic member 16 for enabling the sensor 14 to receive the shift shaft 3 in a neutral position, the sensor 14 being mounted on the transmission case 1, and at least a portion of the sensor 14 being located inside the transmission case 1, the magnet bracket assembly 15 being fixed to the shift shaft 3, the magnetic member 16 being mounted on the magnet bracket assembly 15.

In this embodiment, when the driver shifts back to neutral from reverse, the shift handle cable cooperates with the first spring 20 to return the shift shaft 3 to neutral, when the reverse rocker 5 is away from the reverse fork 43, while the sensor 14 senses the magnetic member 16, the sensor 14 transmits a signal to the cab to help the driver ensure that the vehicle has returned to neutral, and when the driver shifts back to neutral from forward, the shift handle cable cooperates with the second return spring 22 to return the shift shaft 3 to neutral, when the forward rocker 4 is away from the fifth and sixth fork 40/the first and second fork 41/the third and fourth fork 42, while the sensor 14 senses the magnetic member 16, the sensor 14 transmits a signal to the cab to help the driver ensure that the vehicle has returned to neutral.

Preferably, a shift stop pin 18 is further included, the shift stop pin 18 is fixed on the transmission case 1, and at least a portion of the shift stop pin 18 is located inside the transmission case 1, and Wang Zicao 17 is engaged with the shift stop pin 18.

In the embodiment, the gear shift stop pin 18 moves in the king groove 17 along with the axial movement or circumferential rotation of the gear shift shaft 3 in the whole gear shift process, so that gear shift is clearer and the operation is smoother.

Finally, it should be explained that: the above embodiments are merely illustrative of the preferred embodiments of the present utility model, and not limiting the scope of the present utility model; although the utility model has been described in detail with reference to the foregoing embodiments, it will be appreciated by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions.

Claims

1. The manual transmission shifting transposition mechanism for the automobile comprises a transmission box body (1), a shifting shaft assembly and a box body cover (2), wherein the box body cover (2) is fixedly connected with the transmission box body (1), the shifting shaft assembly can be axially moved and circumferentially rotationally arranged in the transmission box body (1) after passing through the box body cover (2), at least one part of the shifting shaft assembly is exposed out of the transmission box body (1), the manual transmission shifting transposition mechanism is characterized in that the shifting shaft assembly comprises a shifting shaft (3), a forward shifting swing rod (4), a reverse shifting swing rod (5), a first return assembly, a second return assembly and a Wang Zicao (17), wang Zicao (17), the forward shifting swing rod (4) and the reverse shifting swing rod (5) are fixed on the shifting shaft (3), the forward shifting swing rod (4) is positioned between the reverse shifting swing rod (5) and the Wang Zicao (17), the first return assembly and the second return assembly are sleeved on the shifting shaft (3), a blind hole (1) is arranged in the transmission box body (1), the shifting shaft (3) passes through the box body cover (2) and is inserted into the other end surface of the first return swing rod (2) to abut against the axial end (62) of the first return swing rod (2) to the second return assembly, the first return assembly or the second return assembly is compressed when the shift shaft assembly is shifted from neutral to forward or reverse, and the first return assembly or the second return assembly is opened when the shift shaft assembly is shifted from forward or reverse to neutral.

2. The gear shifting and shifting mechanism of the manual transmission of the automobile according to claim 1, wherein the gear shifting shaft assembly further comprises a gear shifting rotating arm (6) for providing circumferential rotation force for the gear shifting shaft (3), a shifting rotating arm (7) for providing axial movement force for the gear shifting shaft (3), a dust cover (8), the dust cover (8) is arranged on the outer end face of the box cover (2), the gear shifting rotating arm (6) and the shifting rotating arm (7) are respectively connected with the gear shifting shaft (3), and the gear shifting rotating arm (6) and the shifting rotating arm (7) are exposed out of the dust cover (8).

3. The manual transmission gear shifting and shifting mechanism of an automobile according to claim 1, further comprising a locking steel ball assembly, wherein the locking steel ball assembly comprises a hollow bolt (9), a steel ball spring (10), a steel ball (11), a steel ball bearing (12) and a steel ball bushing (13), the outer peripheral surface of the hollow bolt (9) is in threaded fit with a transmission box body (1), one end of the steel ball bushing (13) is positioned in the hollow bolt (9), the other end of the steel ball bushing (13) is connected with the steel ball (11), one end of the steel ball spring (10) abuts against the steel ball bushing (13), the other end of the steel ball spring (10) abuts against the hollow bolt (9), the steel ball bearing (12) is positioned between the outer peripheral surface of the steel ball bushing (13) and the inner wall surface of the hollow bolt (9), one end of the reverse gear swing rod (5) is provided with a reverse gear shifting finger (5 a), and the other end of the reverse gear swing rod is provided with a first waveform surface (5 b) and a second waveform surface (5 c), and the steel ball (11) is elastically contacted with the first waveform surface (5 b) and the second waveform surface (5 c).

4. A manual transmission shift position mechanism according to claim 1, further comprising a neutral signal sensor assembly comprising a sensor (14), a magnet carrier assembly (15), a magnetic member (16) for receiving the sensor (14) with the shift shaft (3) in a neutral position, the sensor (14) being mounted on the transmission housing (1) and at least a portion of the sensor (14) being located inside the transmission housing (1), the magnet carrier assembly (15) being fixed to the shift shaft (3), the magnetic member (16) being mounted on the magnet carrier assembly (15).

5. A manual transmission shift position mechanism according to claim 1, further comprising a shift stop pin (18), wherein the shift stop pin (18) is fixed to the transmission case (1), and wherein at least a part of the shift stop pin (18) is located inside the transmission case (1), and wherein the Wang Zicao (17) is engaged with the shift stop pin (18).