阅读说明：本技术 一种选换挡机构 (Gear selecting and shifting mechanism ) 是由 方磊 崔燕青 潘一帆 谭秀杰 袁海峰 徐旭初 方伟荣 于 2018-06-21 设计创作，主要内容包括：本发明公开了一种选换挡机构,作为手动变速箱的操纵机构,用于实现选挡和换挡。本发明公开的选换挡机构的直线轴承、选挡定排销、换挡定排销、互锁销、倒车灯开关及挡位传感器均集成于选换挡盖,且利用选挡定位销或换挡定位销遮挡通气孔的一端,且设置用于确定选挡摇臂和换挡摇臂位置的定位孔。本发明公开的选换挡机构具有较高的集成度,且有效缩短定位尺寸链的长度,使装配更加简便高效,提高了选换挡机构的装配精度,进而提高了选换挡机构操纵的准确性和流畅性。(The invention discloses a gear selecting and shifting mechanism which is used as an operating mechanism of a manual transmission and used for realizing gear selecting and gear shifting. The linear bearing, the gear selecting and fixing pin, the gear shifting and fixing pin, the interlocking pin, the reversing light switch and the gear sensor of the gear selecting and shifting mechanism disclosed by the invention are all integrated on the gear selecting and shifting cover, one end of the vent hole is shielded by the gear selecting positioning pin or the gear shifting positioning pin, and positioning holes for determining the positions of the gear selecting rocker arm and the gear shifting rocker arm are arranged. The gear selecting and shifting mechanism disclosed by the invention has higher integration level, effectively shortens the length of the positioning size chain, enables the assembly to be simpler, more convenient and more efficient, improves the assembly precision of the gear selecting and shifting mechanism, and further improves the accuracy and the smoothness of the operation of the gear selecting and shifting mechanism.)

1. A gear selecting and shifting mechanism comprises a gear selecting and shifting cover (8), a gear selecting and shifting shaft (10), a linear bearing (3), a gear selecting and row fixing pin (6), a gear shifting and row fixing pin (16) and an interlocking pin (7), and is characterized in that the linear bearing (3), the gear selecting and row fixing pin (6), the gear shifting and row fixing pin (16) and the interlocking pin (7) are all arranged on the gear selecting and shifting cover (8).

2. The gear selector mechanism according to claim 1, characterized in that the gear selector shaft (10) is inserted through the linear bearing (3); the gear selecting and shifting pin (6) and the gear shifting pin (16) both extend along the radial direction of the gear selecting and shifting shaft (10) and are arranged at 180 degrees, and the radial forces of the gear selecting and shifting pin (6) and the gear shifting pin (16) on the gear selecting and shifting shaft (10) are equal in magnitude and opposite in direction.

3. The gear selection and shift mechanism according to claim 1, characterized in that the gear selection cover (8) is provided with light holes for mounting the linear bearing (3), the gear selection row pin (6), the gear shift row pin (16) and the interlocking pin (7), all of which are integrated on the gear selection cover (8) by press-fitting.

4. The gear selection and shift mechanism according to claim 1, further comprising a gear sensor (15) and a reverse light switch (9), wherein the gear sensor (15) and the reverse light switch (9) are both disposed on the gear selection cover (8).

5. The gearshift mechanism according to claim 4, characterized in that the gearshift cover (8) is provided with threaded holes for mounting the gear sensor (15) and the reversing light switch (9), both integrated in the gearshift cover (8) by means of a threaded fastening.

6. The gear selection and shift mechanism according to any one of claims 1 to 5, characterized in that the gear selection cover (8) is provided with a vent hole (81), one end of the vent hole (81) is provided with a vent plug (4), and the other end is shielded by the gear selection row pin (6) or the gear shift row pin (16).

7. The gearshift mechanism according to any of claims 1-5, further comprising a gearshift rocker (1) sleeved on the gearshift shaft (10) and at least one dial (12), wherein the dial (12) is provided with a dial finger (121); the gear selecting and shifting cover (8) is provided with a first positioning hole (17), and the gear shifting rocker arm (1) is provided with a second positioning hole (22); and under the condition that the shifting finger (121) of the shifting block (12) is aligned with the shifting fork notch corresponding to the 1 gear and the 2 gear, the first positioning hole (17) is aligned with the second positioning hole (22).

Technical Field

The invention relates to the technical field of automobiles, in particular to a gear selecting and shifting mechanism.

Background

The gear selecting and shifting mechanism is an operating mechanism of a manual gearbox, generally fixed on a shell, externally connected with a cable, internally matched with a shifting fork, on one hand, operating a shifting finger to enter different shifting fork notches to realize gear selection, and on the other hand, operating the selected shifting fork to move forward or backward to realize gear shifting.

At present, the integration level of a gear selecting and shifting mechanism is not high, the assembly and the disassembly are troublesome, and the universality of all parts is general.

In view of the above-mentioned deficiencies in the prior art, it is a technical problem that those skilled in the art need to solve to develop a gear selecting and shifting mechanism which has high integration level, is convenient to assemble and disassemble, and has better component universality.

Disclosure of Invention

In order to solve the technical problems, the invention provides a gear selecting and shifting mechanism which comprises a gear selecting and shifting cover, a gear selecting and shifting shaft, a linear bearing, a gear selecting and row fixing pin, a gear shifting and row fixing pin and an interlocking pin.

Drawings

FIG. 1 is an exploded view of one embodiment of a gear selection and shift mechanism according to the present invention;

FIG. 2 is a schematic diagram of a gear selecting process of the gear selecting and shifting mechanism provided by the present invention;

FIG. 3 is a schematic diagram of a shifting process of the gear selecting and shifting mechanism provided by the present invention;

FIG. 4 is a schematic view of the positions of the first positioning hole and the second positioning hole when the shift finger is aligned with the corresponding shift fork notch of the 1 st gear and the 2 nd gear;

FIG. 5 is a schematic view of the gear selecting row pin blocking one end of the vent hole.

The reference numerals in fig. 1-5 are as follows: the automatic transmission comprises a gear shifting rocker arm 1, a gear oil seal 2, a linear bearing 3, a vent plug 4, a gear selecting pin 5, a gear selecting and row fixing pin 6, an interlocking pin 7, a gear selecting cover 8, an air vent 81, a reversing light switch 9, a gear selecting and shifting shaft 10, a coil spring pin 11, a shifting head 12, a shifting finger 121, a gear selecting and shifting cam 13, an interlocking groove 131, a gear magnet 14, a sensor 15, a gear shifting and row fixing pin 16, a first positioning hole 17, a gear selecting slider 18, a 19E-shaped snap spring, a gasket 20, a gear selecting rocker arm 21, a second positioning hole 22, an A1-A4 shifting fork and a positioning pin B.

Detailed Description

In order to make the technical solutions of the present invention better understood by those skilled in the art, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1, fig. 1 is an exploded schematic view of a gear selecting and shifting mechanism according to an embodiment of the present invention.

As shown in fig. 1, the gear selecting and shifting mechanism comprises a gear selecting and shifting shaft assembly, a gear selecting and shifting cover assembly, a gear selecting rocker arm assembly and a gear shifting rocker arm assembly.

The gear selecting and shifting shaft assembly comprises: the gear selecting and shifting device comprises a gear selecting and shifting shaft 10, a gear selecting and shifting cam 13 and two shifting blocks 12, wherein the gear selecting and shifting cam 13 and the two shifting blocks 12 are sleeved on the gear selecting and shifting shaft 10, and a gear magnet 14 fixed on the gear selecting and shifting cam 13. When the device is applied, the number of the shifting blocks 12 can be changed according to actual needs, for example, a single shifting block 12 can be arranged.

The gear selecting and shifting cam 13 is formed with an interlock slot 131, and the interlock slot 131 is shown as a herringbone slot.

Wherein the gear selecting and shifting cam 13 and the shifting block 12 are fixed on the gear selecting and shifting shaft 10 through a coil spring pin 11 for assembly and disassembly.

The gear selecting and shifting cam 13 is provided with an interface for connecting a gear magnet 14. Specifically, the interface can be a pin hole, a bolt hole and a combination thereof. Also, the interface may be provided as a universal interface so that different types of shift position magnets 14 can be replaced without replacing the shift select cam 13.

The select cover assembly of shifting includes: the gear selecting and shifting cover 8, the linear bearing 3 integrated on the gear selecting and shifting cover 8, the oil seal 2 plugged at one end of the linear bearing 3, the gear selecting pin 5, the gear selecting and fixing pin 6, the gear shifting and fixing pin 16, the interlocking pin 7, the reversing light switch 9 and the gear sensor 15 integrated on the gear selecting and shifting cover 8, and the vent plug 4 covered at one end of the vent hole 81 formed on the gear selecting and shifting cover 8.

The gear selecting and shifting cover 8 is provided with unthreaded holes for mounting the linear bearing 3, the gear selecting pin 5, the gear selecting row-fixing pin 6, the gear shifting row-fixing pin 16 and the interlocking pin 7, and the four unthreaded holes are pressure-equalized in the corresponding unthreaded holes. The fixing mode is convenient to assemble and disassemble, and is beneficial to simplifying the structure of the gear selecting and shifting mechanism. Other fastening means are of course possible.

Wherein, the gear selecting pin 5 is used for connecting the gear selecting rocker arm 21.

The gear selecting and shifting pin 6 and the gear shifting pin 16 abut against the gear selecting and shifting shaft 10, and play a role in positioning the gear selecting and shifting shaft 10 when the gear selecting and shifting shaft 10 moves and rotates.

Wherein, the gear selecting and gear fixing pin 6 and the gear shifting and gear fixing pin 16 both extend along the radial direction of the gear selecting and gear shifting shaft 10, and the two are arranged at 180 degrees, and the radial force of the gear selecting and gear fixing pin 6 to the gear selecting and gear shifting shaft 10 is the same as the radial force of the gear shifting and gear shifting pin 16 to the gear selecting and gear shifting shaft 10 in magnitude and opposite in direction. The arrangement mode enables the two radial forces to be mutually offset, so that the resistance in gear selecting and shifting is reduced, and the operating smoothness of the gear selecting and shifting mechanism is improved.

The interlocking pin 7 is matched with the interlocking groove 131, and in an assembling state, the interlocking pin 7 is inserted into the interlocking groove 131.

The reversing light switch 9 is connected with a threaded hole formed in the gear selecting and shifting cover 8 through a thread of the reversing light switch, and is connected with relevant equipment such as a reversing radar through a signal wire.

The gear selecting and shifting cover 8 is provided with an interface for connecting the gear sensor 15, specifically, the interface may be a pin hole, a bolt hole or a combination of the pin hole and the bolt hole. Furthermore, the interface can be designed as a universal interface in order to replace different types of gear sensors 15, such as full gear sensors or start-stop sensors, without replacing the selector cover 8.

The gear sensor 15 determines the gear by detecting the magnetic field of the gear magnet 14.

The gear selecting rocker arm assembly comprises a gear selecting rocker arm 21 which is rotatably connected with the gear selecting pin 5, a limiting component which limits the gear selecting rocker arm 21 to move along the axial direction of the gear selecting pin 5, and a gear selecting slide block 18 which is connected with the gear selecting rocker arm 21.

The limiting assembly is an E-shaped clamp spring 19 clamped on the gear selecting pin 5, and a gasket 20 is arranged at the abutting position of the E-shaped clamp spring 19 and the gear selecting rocker arm 21.

And a gear selecting inhaul cable is connected between the gear selecting rocker arm 21 and the gear selecting and shifting handle, and when a driver operates the gear selecting and shifting handle to select gears, the gear selecting inhaul cable pulls the gear selecting rocker arm 21 to rotate.

The gear shifting rocker arm assembly comprises a gear shifting rocker arm 1, wherein the gear shifting rocker arm 1 is sleeved at one end of the gear selecting and shifting shaft 10 penetrating through the gear selecting and shifting cover 8 and is connected with the gear selecting sliding block 18. That is to say, the shifting rocker arm 1 is connected to the selector rocker arm 21 via the selector slide 18.

Wherein the gear shift rocker arm 1 can be fixed on the gear shift shaft 10 through a coil spring pin 11 so as to be convenient to mount and dismount.

And a gear shifting cable is connected between the gear shifting rocker arm 1 and the gear selecting and shifting handle, and when a driver operates the gear selecting and shifting handle to shift gears, the gear shifting cable pulls the gear shifting rocker arm 1 to rotate.

Referring to fig. 2 to fig. 3, fig. 2 is a schematic diagram illustrating a gear selecting process of the gear selecting and shifting mechanism according to the present invention; fig. 3 is a schematic diagram of a gear shifting process of the gear selecting and shifting mechanism provided by the invention.

As shown in fig. 2, the gear selection rocker 21 rotates around the gear selection pin 5, and the rotation of the gear selection rocker 21 is converted into the axial movement of the gear selection rocker 1 along the gear selection shaft 10 through the gear selection slider 18, so as to drive the gear selection shaft 10 to move axially, so that the fingers 121 of the dial 12 align with different fork notches, and thus, gear selection is realized. As shown in the figure, four shifting forks are arranged, the shifting fork A1 corresponds to 1 gear and 2 gears, the shifting fork A2 corresponds to 3 gears and 4 gears, the shifting fork A3 corresponds to 5 gears and 6 gears, and the shifting fork A4 corresponds to reverse gear. As shown, the fingers 121 of one of the shift heads 12 are aligned with the corresponding shift notches of 3 th gear and 4 th gear, i.e., the selected gear is 3 th gear or 4 th gear.

As shown in fig. 3, the gear shifting rocker arm 1 rotates to drive the gear selecting and shifting shaft 10 to rotate, the shifting block 12 rotates along with the rotation, and the shifting finger 121 pushes the shifting fork to move, so that synchronizers in different gears are engaged, and gear shifting is realized.

Referring to fig. 4, fig. 4 is a schematic diagram illustrating positions of the first positioning hole and the second positioning hole when the shift finger is aligned with the corresponding shift fork notch of the 1 st gear and the 2 nd gear.

As shown in fig. 4, the gear selecting and shifting cover 8 is provided with a first positioning hole 17, the gear shifting rocker arm 1 is provided with a second positioning hole 22, and when the gear selecting and shifting finger 121 aligns with the corresponding fork notch of the 1 st gear and the 2 nd gear, the first positioning hole 17 aligns with the second positioning hole 22.

When the gear selecting inhaul cable and the gear shifting inhaul cable are assembled, the first positioning hole 17 can be aligned with the second positioning hole 22 and penetrates through the positioning pin B for positioning, so that the positions of the gear selecting rocker arm 21 and the gear shifting rocker arm 1 are determined, and the assembling precision of the gear selecting inhaul cable and the gear shifting inhaul cable is guaranteed.

Referring to fig. 5, fig. 5 is a schematic view of the gear selecting row pin blocking one end of the vent hole.

As shown in fig. 5, one end of the vent hole 81 is covered by a vent plug 4, and the other end of the vent hole is shielded by the gear selecting fixed row pin 6 or the gear shifting fixed row pin 16 to prevent oil from splashing out of the vent hole 81.

The gear selecting and shifting mechanism provided by the invention is described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.