Gearbox control mechanism capable of avoiding gear selecting clamping stagnation and having reverse gear hand feeling

Abstract

The utility model relates to a gearbox control mechanism, and provides a gearbox control mechanism which can avoid gear selection clamping stagnation and has a reverse gear hand feeling in order to solve the problems that the gear selection clamping stagnation fault is possibly caused, or the structure is complex and the assembly is difficult due to the fact that the phenomenon of large gear selection resistance easily occurs in an existing gearbox control mechanism. The gear shifting mechanism comprises a gear selecting shifting block, a transverse gear shifting rod, a gear shifting shifting block and a lifting pin assembly. The gear selecting shifting block comprises a gear selecting upper shifting block and a gear selecting lower shifting block; one end of the transverse shift lever is connected with an external power mechanism; a mounting hole is formed in the middle of the gear shifting block in the axial direction of the transverse gear shifting rod, an inner spline matched with the outer spline is arranged in the mounting hole, and the gear shifting block is arranged on the transverse gear shifting rod in a sleeving mode through the inner spline. A boss is arranged on the side, away from the gear selecting shaft, of the gear shifting block, and a through hole is formed in the boss. A second groove is formed in the transverse gear shifting rod, the lifting pin assembly penetrates through the through hole, and the end of the lifting pin assembly makes contact with the second groove.

Description

Technical Field

[0001] The utility model relates to a gearbox operating mechanism, in particular to a gearbox operating mechanism which can avoid gear selection stagnation and has a reverse gear feel. Background Art

[0002] The gearbox control mechanism, also known as the transmission control device, is used to select and shift the gears of the vehicle. The gear selection and shifting process is realized by the gear selection knob, gear shift knob, transverse gear shift lever and other components installed in the housing. The gear selection knob can push the gear shift knob to slide on the transverse gear shift lever to select the gear, and the transverse gear shift lever drives the gear shift knob to rotate around the central axis to shift the gears.

[0003] The existing gear selector knob is a single selector knob, which only acts on one side of the gear shift knob. When selecting gears, it is easy to cause the gear shift knob and the horizontal gear shift lever to be out of center, which may easily cause a large gear selection resistance and may even cause a gear selection jam.

[0004] Chinese patent CN206409626U discloses a six-speed manual longitudinal transmission shifting mechanism, including a fifth / sixth gear shift fork, a third / fourth gear shift fork assembly and a fifth / sixth gear shift block arranged on a main shift fork shaft, a first / second gear shift fork assembly and a reverse gear shift fork assembly arranged on a slave shift fork shaft, and a double shift head control mechanism arranged perpendicularly to the main and slave shift fork shafts. The shortcomings of the transmission shifting mechanism are: complex structure and difficult assembly. Utility Model Content

[0005] The utility model aims to solve the problem that the existing gearbox operating mechanism is prone to large gear selection resistance, which may cause the failure of gear selection jamming, or the problem of complex structure and difficult assembly, and to provide a gearbox operating mechanism that can avoid gear selection jamming and has a reverse gear feel.

[0006] To achieve the above purpose, the technical solution provided by the utility model is:

[0007] A gearbox operating mechanism which can avoid gear selection jamming and has a reverse gear feel, comprises a gear selection dial head, a transverse gear shift lever, a gear shift dial head and a top pin assembly, and is special in that:

[0008] The shift selector head comprises an upper shift selector head and a lower shift selector head, and both the upper shift selector head and the lower shift selector head comprise a head portion and a tail portion; the tail portion of the upper shift selector head and the tail portion of the lower shift selector head fit each other; the inner side surface of the head portion of the upper shift selector head and the inner side surface of the head portion of the lower shift selector head are parallel to each other; the tail portion of the upper shift selector head or the lower shift selector head is connected to the shift selector shaft;

[0009] The middle side surface of the transverse shift lever is provided with an external spline, one end of which is connected to an external power mechanism so that the transverse shift lever can rotate in a circumferential direction;

[0010] The middle part of the shift head is provided with a mounting hole adapted to the outer diameter of the transverse shift rod, and the mounting hole is provided with an internal spline matched with the external spline, and the shift head is sleeved on the transverse shift rod through the internal spline; the lower end of the shift head is provided with an end head for connecting with other gearbox components, and the end head is driven to rotate by the shift head when the transverse shift rod rotates to achieve gear shifting; the upper and lower ends of the shift head are respectively provided with first grooves matched with the head of the upper shift head and the head of the lower shift head, and the head of the upper shift head and the head of the lower shift head are respectively located in the two first grooves, and are used for driving the shift head to move along the axial direction of the transverse shift rod through the shift head when the shift shaft rotates to achieve gear selection;

[0011] A boss is provided on the side of the shifting head away from the shifting shaft, and a through hole is provided on the boss for the ejector pin assembly to pass through and communicate with the mounting hole;

[0012] A second groove matching the end of the push pin assembly is provided at a position on the transverse shift rod corresponding to the through hole, and the push pin assembly passes through the through hole and the end contacts the second groove; the two ends along the axial direction of the transverse shift rod are slopes, so that the push pin assembly contacts the slope when the reverse gear is selected.

[0013] Furthermore, the ejector pin assembly includes an ejector pin, an ejector pin spring and an ejector pin pressure cover; the ejector pin is a cylindrical structure with a ball head at one end, and the ball head is in contact with the second groove; the ejector pin spring is arranged in the ejector pin along the axial direction, and the ejector pin pressure cover is sleeved on the outside of the boss and is connected to the boss by a thread; one end of the ejector pin spring abuts against the inside of the ejector pin, and the other end abuts against the inside of the ejector pin pressure cover, so that the ejector pin can move axially when the ball head is squeezed.

[0014] Furthermore, a third groove is provided at the other end of the transverse shift rod, which is used to connect with the gearbox housing to limit the axial position of the transverse shift rod.

[0015] Furthermore, the shape of the axial cross section of the second groove is an isosceles trapezoid.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The utility model provides a gearbox operating mechanism that can avoid gear selection jamming and has a reverse gear feel. The gear selection dial head includes an upper gear selection dial head and a lower gear selection dial head. The gear selection dial head cooperates with the shifting dial head to make the force on the shifting dial head more balanced, thus avoiding the gear selection jamming caused by the eccentric sliding of the shifting dial head during the gear selection process.

[0018] 2. The transmission operating mechanism provided by the utility model can avoid the gear selection from being stuck and has a reverse gear feel. It is also provided with a push pin assembly composed of a push pin, a push pin spring and a push pin pressure cover, which is used to cooperate with a second groove provided on the transverse shift lever to generate a resistance feel when the driver selects the reverse gear, so as to allow the driver to distinguish the positions of the first gear forward gear, the second gear forward gear and the reverse gear, thereby greatly reducing the occurrence rate of gear shift errors. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural diagram of an embodiment of the utility model;

[0020] Figure 2 An exploded view of an embodiment of the utility model;

[0021] Figure 3 It is a schematic diagram of the structure of an embodiment of the utility model;

[0022] Figure 4 A cross-sectional view of an embodiment of the utility model;

[0023] Figure 5 A partial cross-sectional view of an embodiment of the utility model;

[0024] Description of reference numerals:

[0025] 1-shift selector head, 2-lateral shift lever, 3-shift selector head, 4-lift pin, 5-lift pin spring, 6-lift pin pressure cover, 71-external spline, 72-internal spline, 8-shift selector shaft, 9-third groove, 10-end shifter head, 11-first groove, 12-second groove. DETAILED DESCRIPTION

[0026] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0027] A gearbox operating mechanism that can avoid gear selection jamming and has a reverse gear feel, see Figure 1 to Figure 5 , including a shift selector head 1, a lateral shift lever 2, a shift selector head 3 and a top pin assembly;

[0028] The shift selector head 1 includes an upper shift selector head and a lower shift selector head, and both the upper shift selector head and the lower shift selector head include a head and a tail; the tail of the upper shift selector head and the tail of the lower shift selector head fit each other; the inner surface of the head of the upper shift selector head and the inner surface of the head of the lower shift selector head are parallel to each other; the tail of the upper shift selector head or the lower shift selector head is connected to the shift selector shaft 8;

[0029] The middle side surface of the transverse shift rod 2 is provided with an external spline 71, one end of which is connected to an external power mechanism so that the transverse shift rod 2 can rotate circumferentially; a second groove 12 that cooperates with the end of the push pin assembly is provided at a position corresponding to the through hole on the transverse shift rod 2, and the axial cross-section of the second groove 12 is an isosceles trapezoid, the push pin assembly passes through the through hole and the end contacts the second groove 12; the second groove 12 is sloped at both ends along the axial direction of the transverse shift rod 2, so that the push pin assembly contacts the slope when the reverse gear is selected; the other end of the transverse shift rod 2 is provided with a third groove 9, which is used to connect with the gearbox housing to limit the axial position of the transverse shift rod 2.

[0030] The middle part of the shift head 3 is provided with a mounting hole adapted to the outer diameter of the transverse shift rod 2, and the mounting hole is provided with an internal spline 72 that cooperates with the external spline 71, and the shift head 3 is sleeved on the transverse shift rod 2 through the internal spline 72; the lower end of the shift head 3 is provided with an end head 10 for connecting with other gearbox components, and the end head 10 is driven to rotate by the shift head 3 when the transverse shift rod 2 rotates to achieve gear shifting; the upper and lower ends of the shift head 3 are respectively provided with first grooves 11 that cooperate with the head of the upper shift head and the head of the lower shift head for gear selection, and the head of the upper shift head and the head of the lower shift head for gear selection are respectively located in the two first grooves 11, which are used to drive the shift head 3 to move axially along the transverse shift rod 2 through the shift head 1 when the gear selection shaft 8 rotates to achieve gear selection; a boss is provided on the side of the shift head 3 away from the gear selection shaft 8, and a through hole is provided on the boss for the top pin assembly to pass through and connected with the mounting hole;

[0031] The ejector pin assembly includes an ejector pin 4, an ejector pin spring 5 and an ejector pin cover 6; the ejector pin 4 is a cylindrical structure with a ball head at one end, and the ball head is in contact with the second groove 12; the ejector pin spring 5 is arranged in the ejector pin 4 along the axial direction, and the ejector pin cover 6 is sleeved on the outer side of the boss and is connected to the boss by a thread; one end of the ejector pin spring 5 abuts against the inside of the ejector pin 4, and the other end abuts against the inside of the ejector pin cover 6, so that the ejector pin 4 can move axially when the ball head is squeezed.

[0032] The present embodiment provides a transmission operating mechanism that can avoid gear selection jamming and has a reverse gear feel. The gear selection shift head 1 includes an upper gear selection shift head and a lower gear selection shift head, which cooperate with the shift shift head 3 to make the force on the shift shift head 3 more balanced, avoiding the gear selection jamming caused by the eccentric sliding of the shift head during the gear selection process. At the same time, a push pin assembly composed of a push pin 4, a push pin spring 5 and a push pin pressure cover 6 is also provided, which is used to cooperate with the second groove 12 provided on the transverse shift rod 2 to generate a resistance feel when the driver selects the reverse gear, so as to allow the driver to distinguish the positions of the first gear forward gear, the second gear forward gear and the reverse gear, thereby greatly reducing the occurrence rate of gear shift errors.

[0033] It should be noted that the above is only a specific implementation mode of the present utility model, but the protection scope of the present utility model is not limited to this. Any technician familiar with the technical field can easily think of various equivalent modifications or substitutions within the specific implementation mode disclosed in the present utility model, and these modifications or substitutions should be included in the protection scope of the present utility model.

Claims

1. A gearbox operating mechanism capable of avoiding gear selection jamming and having a reverse gear feel, comprising a gear selection knob (1), a lateral gear shift lever (2), a gear shift knob (3) and a push pin assembly, characterized in that: The gear selection dial head (1) comprises an upper gear selection dial head and a lower gear selection dial head, each of which comprises a head and a tail; the tail of the upper gear selection dial head and the tail of the lower gear selection dial head fit each other; the inner surface of the head of the upper gear selection dial head and the inner surface of the head of the lower gear selection dial head are parallel to each other; the tail of the upper gear selection dial head or the tail of the lower gear selection dial head is connected to the gear selection shaft (8); The middle side surface of the transverse shift rod (2) is provided with an external spline (71), one end of which is connected to an external power mechanism so that the transverse shift rod (2) can rotate in a circumferential direction; The middle part of the shift head (3) is provided with a mounting hole matched with the outer diameter of the transverse shift rod (2), and the mounting hole is provided with an internal spline (72) matched with the external spline (71), and the shift head (3) is sleeved on the transverse shift rod (2) through the internal spline (72); the lower end of the shift head (3) is provided with an end head (10) for connecting with other gearbox components, and when the transverse shift rod (2) rotates, the end head (10) is driven to rotate by the shift head (3) to achieve gear shifting; the upper and lower ends of the shift head (3) are respectively provided with first grooves (11) matched with the head of the upper shift head and the head of the lower shift head, and the head of the upper shift head and the head of the lower shift head are respectively located in the two first grooves (11), and are used to drive the shift head (3) to move axially along the transverse shift rod (2) through the shift head (1) when the gear selection shaft (8) rotates, so as to achieve gear selection; A boss is provided on the side of the shifting head (3) away from the shifting shaft (8), and a through hole is provided on the boss for the ejector pin assembly to pass through and is connected to the mounting hole; A second groove matching the end of the ejector pin assembly is provided at a position on the transverse shift lever (2) corresponding to the through hole, and the ejector pin assembly passes through the through hole and the end thereof contacts the second groove (12); both ends of the second groove (12) along the axial direction of the transverse shift lever (2) are slopes, so that the ejector pin assembly contacts the slope when the reverse gear is selected.

2. The gearbox operating mechanism capable of avoiding gear selection jamming and having a reverse gear feel according to claim 1, characterized in that: The ejector pin assembly comprises an ejector pin (4), an ejector pin spring (5) and an ejector pin pressure cover (6); The ejector pin (4) is a cylindrical structure with a ball head at one end, and the ball head is in contact with the second groove (12); the ejector pin spring (5) is arranged in the ejector pin (4) along the axial direction, and the ejector pin pressure cover (6) is sleeved on the outer side of the boss and connected to the boss through a thread; one end of the ejector pin spring (5) abuts against the inside of the ejector pin (4), and the other end abuts against the inside of the ejector pin pressure cover (6), so that the ejector pin (4) can move axially when the ball head is squeezed.

3. The gearbox operating mechanism capable of avoiding gear selection jamming and having a reverse gear feel according to claim 1 or 2, characterized in that: The other end of the transverse shift rod (2) is provided with a third groove (9) for connecting with the gearbox housing to limit the axial position of the transverse shift rod (2).

4. The gearbox operating mechanism capable of avoiding gear selection jamming and having a reverse gear feel according to claim 3 is characterized in that: The shape of the axial cross section of the second groove (12) is an isosceles trapezoid.

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