A transmission with multiple forward gears and multiple reverse gears

Abstract

The present invention discloses a transmission with multiple forward gears and multiple reverse gears. The transmission mainly includes a shift control mechanism assembly, an input shaft assembly, an output shaft assembly, an intermediate shaft assembly, and a housing. The input shaft assembly, the output shaft assembly, and the intermediate shaft assembly are combined to form a main box with a three-shaft structure. The main box includes four groups of gear sets and one group of forward and reverse shift gears. The input shaft assembly and the output shaft assembly are combined to form a sub-box with a two-shaft structure. The sub-box includes a fast gear set and a slow gear set. The present invention can achieve the adjustment of a total of sixteen gears, including four forward fast gears, four forward slow gears, four reverse fast gears, and four reverse slow gears. The gears and gear shafts of the main box assembly and the sub-box assembly are combined to form a transmission with multiple forward gears and multiple reverse gears. The transmission of the present invention has a small axial dimension, a simple structure, a compact space layout, realizes the forward and reverse operation of the whole machine, and improves the performance of the whole machine.

Description

Technical Field

[0001] The invention relates to a transmission with multiple forward gears and multiple reverse gears, belonging to the technical field of manufacturing tractor and construction machinery transmission systems. Background Art

[0002] Machines such as tractors and construction machinery usually only need to be provided with multiple forward gears and one or two reverse gears to meet the daily use requirements. With the continuous popularization and application of mechanization, machines such as tractors and construction machinery need to undertake multiple operation modes. To improve work efficiency, such multi-purpose machines are provided with a rotating seat to realize the two-way driving mode. When in the reverse driving mode, the number of reverse gears is too small to meet the use requirements. It is necessary to design a transmission that can meet the high-efficiency driving requirements in both forward and reverse driving modes. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a transmission with multiple forward gears and multiple reverse gears to solve the problem of insufficient reverse gears in the existing transmission.

[0004] To solve the above problems, the following technical solutions are adopted: A transmission with multiple forward gears and multiple reverse gears mainly includes a shift control mechanism assembly, an input shaft assembly, an output shaft assembly, an intermediate shaft assembly, and a housing; three groups of corresponding hole systems are provided on both sides of the housing, and the input shaft assembly, the output shaft assembly, and the intermediate shaft assembly are respectively arranged; the main body of the input shaft assembly is the input shaft, which is fixed on the housing through bearings; one end of the input shaft is the power input end, and from the power input end direction, a reverse gear reversing gear, a reversing fixed tooth seat, a forward gear reversing gear, and a secondary box double gear are successively arranged on the input shaft; the reversing fixed tooth seat is fixed on the input shaft, and a reversing sliding tooth sleeve is arranged on the reversing fixed tooth seat; the main body of the output shaft assembly is the output shaft, which is fixed on the housing through bearings; the secondary box gear shaft is sleeved on the output shaft; from the power input end direction of the input shaft, a first gear driven gear, a first and second gear fixed tooth seat, a second gear driven gear, a fourth gear driven gear, a third and fourth gear fixed tooth seat, and a third gear driven gear are successively arranged on the secondary box gear shaft, and a high and low gear fixed tooth seat and a secondary box low gear are arranged on the output shaft; the first and second gear fixed tooth seat is fixed on the secondary box gear shaft, and a first and second gear sliding tooth sleeve is arranged on the first and second gear fixed tooth seat; the third and fourth gear fixed tooth seat is fixed on the secondary box gear shaft, and a third and fourth gear sliding tooth sleeve is arranged on the third and fourth gear fixed tooth seat; the high and low gear fixed tooth seat is fixed on the output shaft, and a high and low gear sliding tooth sleeve is arranged on the high and low gear fixed tooth seat; the main body of the intermediate shaft assembly is the intermediate shaft, which is fixed on the housing through bearings; from the power input end direction of the input shaft, they are successively the intermediate shaft first gear, the intermediate shaft second gear, the intermediate shaft fourth gear, the gear spacer, and the intermediate shaft third gear, and the above four gears are all fixed on the intermediate shaft; the three shafts are parallel to each other.

[0005] The reverse gear shifting gear of the input shaft meshes with the fourth gear of the intermediate shaft of the intermediate shaft; the forward gear shifting gear of the input shaft meshes with the third gear driven gear of the output shaft, the large gear of the double gear of the auxiliary box meshes with the fast gear of the auxiliary box gear shaft of the auxiliary box, and the small gear of the double gear of the auxiliary box meshes with the slow gear of the auxiliary box; the first gear driven gear of the output shaft meshes with the first gear of the intermediate shaft of the intermediate shaft, the second gear driven gear meshes with the second gear of the intermediate shaft, the fourth gear driven gear meshes with the fourth gear of the intermediate shaft, and the third gear driven gear meshes with the third gear of the intermediate shaft.

[0006] Advantages of the present invention: The present invention adopts a three-shaft structure design, combines the input shaft assembly, the output shaft assembly and the intermediate shaft assembly into a main box with a three-shaft structure, and the input shaft assembly and the output shaft assembly form an auxiliary box with a two-shaft structure. The gears of the main box assembly and the auxiliary box assembly are integrated in one box body, increasing the number of gears of the transmission, so that the transmission has a total of sixteen gears, including four forward fast gears, four reverse fast gears, four forward full gears and four reverse slow gears. Moreover, the transmission assembly can be designed to be more compact and achieve the purpose of reliable use and lightweight manufacturing. At the same time, the power can be directly output from the other end of the input shaft assembly to drive other working devices. The power can also be output from both ends of the output shaft after speed change to drive machines such as tractors and construction machinery to move. Description of the Drawings

[0007] Figure 1 is a schematic structural diagram of the present invention;

[0008] Figure 2 is Figure 1 a left-view structural expansion diagram;

[0009] Figure 3 is a schematic structural diagram of the input shaft assembly and the output shaft assembly of the present invention;

[0010] Figure 4 is a schematic structural diagram of the output shaft assembly and the intermediate shaft assembly of the present invention;

[0011] Figure 5 is a schematic structural diagram of the input shaft assembly and the intermediate shaft assembly of the present invention.

[0012] Description of the accompanying reference numerals: shift operating mechanism assembly 1, input shaft assembly 2, output shaft assembly 3, intermediate shaft assembly 4, transmission housing 5, input shaft 6, first bearing of input shaft 7, gear bushing 8, reverse gear reversing gear 9, needle roller bearing 10, reversing sliding gear sleeve 11, reversing fixed gear seat 12, forward gear reversing gear 13, double gear bearing 14, auxiliary box double gear 15, auxiliary box fast gear 16, second bearing of input shaft 17, output shaft 18, first bearing of output shaft 19, first gear driven gear 20, first gear gear of intermediate shaft 21, first and second gear sliding bearings Moving gear sleeve 22, first and second gear fixed gear seat 23, second gear driven gear 24, large gear 25, fourth gear driven gear 26, third and fourth gear sliding gear sleeve 27, third and fourth gear fixed gear seat 28, third gear driven gear 29, auxiliary box gear shaft 30, fast and slow gear sliding gear sleeve 31, fast and slow gear fixed gear seat 32, auxiliary box slow gear 33, output shaft second bearing 34, intermediate shaft first bearing 35, intermediate shaft 36, intermediate shaft second gear 37, intermediate shaft fourth gear 38, gear spacer 39, intermediate shaft third gear 40, intermediate shaft second bearing 41, small gear 42. DETAILED DESCRIPTION

[0013] The present invention will be further described below in conjunction with the accompanying drawings and implementation modes.

[0014] like Figure 1 , 2 As shown in , 3, 4, and 5, a transmission with multiple forward gears and multiple reverse gears is mainly composed of a shift operating mechanism assembly 1, an input shaft assembly 2, an output shaft assembly 3, an intermediate shaft assembly 4, and a housing 5;

[0015] The housing 5 is provided with three sets of corresponding hole systems, respectively provided with the input shaft assembly 2, the output shaft assembly 3, and the intermediate shaft assembly 4. The shift control mechanism assembly 1 includes a vertical control mechanism and a side control mechanism, the vertical control mechanism includes a vertical rocker and a vertical fork, and the side control mechanism includes a side rocker and a side fork.

[0016] like Figure 1-3 , Figure 5As shown in the figure, the main body of the input shaft assembly 2 is the input shaft 6, which is fixed on the housing 5 through the first input shaft bearing 7 and the second input shaft bearing 17; one end of the first input shaft bearing 7 is the power input end. Starting from the power input end direction, a reverse gear shifting gear 9, a shifting fixed gear seat 12, a forward gear shifting gear 13, and a secondary box double gear 15 are sequentially arranged on the input shaft 6; the shifting fixed gear seat 12 is fixed on the input shaft 6, a shifting sliding gear sleeve 11 is arranged on the shifting fixed gear seat 12, a gear bushing 8 is arranged on each side of the shifting fixed gear seat 12, a needle roller bearing 10 is arranged on each gear bushing 8, and the reverse gear shifting gear 9 and the forward gear shifting gear 13 are respectively arranged on the two needle roller bearings 10; the secondary box double gear 15 is sleeved on the input shaft 6, a double gear bearing 14 and a needle roller bearing 10 are arranged between the secondary box double gear 15 and the input shaft 6, and the second input shaft bearing 17 is sleeved on the secondary box double gear 15.

[0017] As Figure 1-4 shown in the figure, the main body of the output shaft assembly 3 is the output shaft 18, which is fixed on the housing 5 through the first output shaft bearing 19 and the second output shaft bearing 34; the secondary box gear shaft 30 is sleeved on the output shaft 18, and two needle roller bearings 10 are arranged between the secondary box gear shaft 30 and the output shaft 18; the secondary box gear shaft is located behind the first bearing 19. Starting from the direction of the first bearing 19, a first gear driven gear 20, a first and second gear fixed gear seat 23, a second gear driven gear 24, a fourth gear driven gear 26, a third and fourth gear fixed gear seat 28, a third gear driven gear 29, a high and low gear fixed gear seat 32, and a secondary box low gear 33 are sequentially arranged on the secondary box gear shaft 30;

[0018] The first and second gear fixed gear seat 23 is fixed on the secondary box gear shaft 30, a first and second gear sliding gear sleeve 22 is arranged on the first and second gear fixed gear seat 23, a gear bushing 8 is fixed on each side of the first and second gear fixed gear seat 23, and the first gear driven gear 20 and the second gear driven gear 24 are respectively arranged on the two gear bushings 8; the third and fourth gear fixed gear seat 28 is fixed on the secondary box gear shaft 30, a third and fourth gear sliding gear sleeve 27 is arranged on the third and fourth gear fixed gear seat 28, a gear bushing 8 is fixed on each side of the third and fourth gear fixed gear seat 28, and the fourth gear driven gear 26 and the third gear driven gear 29 are respectively arranged on the two gear bushings 8; the high and low gear fixed gear seat 32 is located behind the secondary box gear shaft 30 and is fixed on the output shaft 18. A high and low gear sliding gear sleeve 31 is arranged on the high and low gear fixed gear seat 32. The high-speed gear 16 of the secondary box of the high and low gear fixed gear seat 32 is closely attached to the secondary box gear shaft 30 on one side, and a gear bushing 8 fixed on the output shaft 18 is arranged on the other side, and the secondary box low gear 33 is arranged on the gear bushing 8.

[0019] As Figure 1 、 Figure 2 、 Figure 4 、 Figure 5As shown in the figure, the main body of the countershaft assembly 4 is the countershaft 36, which is fixed on the housing 5 through the first countershaft bearing 35 and the second countershaft bearing 41; between the first countershaft bearing 35 and the second countershaft bearing 41 are successively the first-speed countershaft gear 21, the second-speed countershaft gear 37, the fourth-speed countershaft gear 38, the gear spacer 39, and the third-speed countershaft gear 40. All of the above four gears are fixed on the countershaft 36.

[0020] The reverse gear 9 of the input shaft 6 meshes with the fourth-speed countershaft gear 38 of the countershaft 36; the forward gear 13 of the input shaft 6 meshes with the third-speed driven gear 29 of the output shaft 18. The large gear 25 of the auxiliary box double gear 15 meshes with the auxiliary box fast gear of the auxiliary box gear shaft 30, and the small gear 42 of the auxiliary box double gear 15 meshes with the auxiliary box slow gear 33; the first-speed driven gear 20 of the output shaft 18 meshes with the first-speed countershaft gear 21 of the countershaft 36, the second-speed driven gear 24 meshes with the second-speed countershaft gear 37, the fourth-speed driven gear 26 meshes with the fourth-speed countershaft gear 38, and the third-speed driven gear 29 meshes with the third-speed countershaft gear 40.

[0021] The three shafts are parallel to each other. The input shaft assembly 2, the output shaft assembly 3, and the countershaft assembly 4 are combined into a main box with a three-shaft structure. The main box includes four groups of gear positions and a set of forward and reverse shift gears; the input shaft assembly 2 and the output shaft assembly 3 are combined into an auxiliary box with a two-shaft structure. The auxiliary box includes a fast gear group and a slow gear group. The present invention can realize the adjustment of a total of sixteen gear positions, including four forward fast gears, four forward slow gears, four reverse fast gears, and four reverse slow gears.

[0022] Select the first forward slow gear, the second reverse fast gear, the third forward fast gear, and the fourth reverse slow gear to describe the working process of the present invention.

[0023] The working process of the present invention:

[0024] When the shift sliding sleeve 11 is located on the shift fixed seat 12, the first and second gear sliding sleeve 22 is located on the first and second gear fixed seat 23, the third and fourth gear sliding sleeve 27 is located on the third and fourth gear fixed seat 28, and the fast and slow gear sliding sleeve 31 is located on the fast and slow gear fixed seat 32, all the gear positions are in neutral, and all the gears on the input shaft 6 and the output shaft 18 and the auxiliary box gear shaft 30 can rotate freely.

[0025] Forward gear, slow gear: Power is transmitted from the input shaft 6. It is shifted into the forward gear through the reversing lever of the shift control mechanism assembly 1, that is, the reversing sliding gear sleeve 11 is shifted towards the forward gear reversing gear 13 and meshes with the engaging teeth of the forward gear reversing gear 13. When the input shaft 6 rotates, it drives the forward gear reversing gear 13 to rotate through the reversing fixed tooth seat 12. The forward gear reversing gear 13 transmits the power to the third gear driven gear 29 on the output shaft assembly 3. The power of the third gear driven gear 29 is transmitted to the intermediate shaft third gear 40 on the intermediate shaft assembly 4. Since all the gears on the intermediate shaft assembly 4 are fixed on the intermediate shaft 36, the power can be transmitted to the intermediate shaft 36. The intermediate shaft first gear 21 on the intermediate shaft 36 transmits the power to the first gear driven gear 20 on the output shaft assembly 3. At this time, the gear is selected through the lever of the shift control mechanism assembly 1, and the first and second gear sliding gear sleeve 22 is shifted towards the first gear driven gear 20 and meshes with the engaging teeth of the first gear driven gear 20 to shift into the first gear. The first gear driven gear 20 drives the auxiliary box gear shaft 30 to rotate through the first and second gear fixed tooth seat 23. The auxiliary box high gear 16 of the auxiliary box gear shaft 30 meshes with the large gear 25 of the auxiliary box double gear 15, and transmits the power to the auxiliary box double gear 15. The small gear 42 of the auxiliary box double gear meshes with the auxiliary box low gear 33. The auxiliary box double gear 15 transmits the power to the auxiliary box low gear 33. At this time, the gear is selected through the side control mechanism in the shift control mechanism assembly 1, and the fast and slow gear sliding gear sleeve 31 is shifted towards the auxiliary box low gear 33. The fast and slow gear sliding gear sleeve 31 meshes with the engaging teeth of the auxiliary box low gear 33 to shift into the slow gear. The auxiliary box low gear 33 transmits the power to the fast and slow gear fixed tooth seat 32 through the fast and slow gear sliding gear sleeve 31. The fast and slow gear fixed tooth seat 32 is fixed to the output shaft 18 through splines, so the power can be output from both ends of the output shaft.

[0026] Reverse gear, fast second gear: The power is transmitted from the input shaft 6. It is shifted into the reverse gear through the reversing lever of the shift control mechanism assembly 1, that is, the reversing sliding gear sleeve 11 is shifted towards the reverse gear reversing gear 9 and meshes with the engaging teeth of the reverse gear reversing gear 9. The input shaft 6 drives the reverse gear reversing gear 9 to rotate through the reversing fixed gear seat 12. The reverse gear reversing gear 9 transmits the power to the intermediate shaft fourth gear 38 on the intermediate shaft assembly 4. Since all the gears on the intermediate shaft assembly 4 are fixed on the intermediate shaft 36, the power can be transmitted to the intermediate shaft 36. The intermediate shaft second gear 37 on the intermediate shaft 36 transmits the power to the second gear driven gear 24 on the output shaft assembly 3. At this time, the gear is selected through the lever of the shift control mechanism assembly 1, and the first and second gear sliding gear sleeve 22 is shifted towards the second gear driven gear 24 and meshes with the engaging teeth of the second gear driven gear 24 to shift into the second gear. The second gear driven gear 24 drives the auxiliary box gear shaft 30 to rotate through the first and second gear fixed gear seat 23. At this time, the gear is selected through the side control mechanism in the shift control mechanism assembly 1, and the fast and slow gear sliding gear sleeve 31 is shifted towards the auxiliary box fast gear 16 on the auxiliary box gear shaft 30. The fast and slow gear sliding gear sleeve 31 meshes with the engaging teeth of the auxiliary box fast gear 16 to shift into the fast gear. The auxiliary box fast gear 16 transmits the power to the fast and slow gear fixed gear seat 32 through the fast and slow gear sliding gear sleeve 31. The fast and slow gear fixed gear seat 32 is fixed to the output shaft 18 through splines, so the power can be output from both ends of the output shaft.

[0027] Forward gear, fast third gear: The power is transmitted from the input shaft 6. It is shifted into the forward gear through the reversing lever of the shift control mechanism assembly 1, that is, the reversing sliding gear sleeve 11 is shifted towards the forward gear reversing gear 13 and meshes with the engaging teeth of the forward gear reversing gear 13. When the input shaft 6 rotates, it drives the forward gear reversing gear 13 to rotate through the reversing fixed gear seat 12. The forward gear reversing gear 13 transmits the power to the third gear driven gear 29 on the output shaft assembly 3. At this time, the gear is selected through the lever of the shift control mechanism assembly 1, and the third and fourth gear sliding gear sleeve 27 is shifted towards the third gear driven gear 29 and meshes with the engaging teeth of the third gear driven gear 29 to shift into the third gear. The third gear driven gear 29 drives the auxiliary box gear shaft 30 to rotate through the third and fourth gear fixed gear seat 28. At this time, the gear is selected through the side control mechanism in the shift control mechanism assembly 1, and the fast and slow gear sliding gear sleeve 31 is shifted towards the auxiliary box fast gear 16 on the auxiliary box gear shaft 30. The fast and slow gear sliding gear sleeve 31 meshes with the engaging teeth of the auxiliary box fast gear 16 to shift into the fast gear. The auxiliary box gear shaft 30 transmits the power to the fast and slow gear fixed gear seat 32 through the fast and slow gear sliding gear sleeve 31. The fast and slow gear fixed gear seat 32 is fixed to the output shaft 18 through splines, so the power can be output from both ends of the output shaft.

[0028] Reverse slow fourth gear: The power is transmitted from the input shaft 6. It is shifted into the reverse gear through the reverse lever of the shift control mechanism assembly 1, that is, the reverse sliding gear sleeve 11 is shifted towards the reverse gear 9. The engaging teeth of the reverse sliding gear sleeve 11 and the reverse gear 9 are engaged. The power of the input shaft 6 is transmitted to the reverse gear 9, and the reverse gear 9 transmits the power to the intermediate shaft fourth gear 38 on the intermediate shaft assembly 4. Since all the gears on the intermediate shaft assembly 4 are fixed on the intermediate shaft 36, the power can be transmitted to the intermediate shaft 36. The intermediate shaft fourth gear teeth 38 on the intermediate shaft 36 transmit the power to the fourth gear driven gear 26 on the output shaft assembly 3. At this time, the lever of the shift control mechanism assembly 1 is used to select the gear, and the third-fourth gear sliding gear sleeve 27 is shifted towards the fourth gear driven gear 26. The engaging teeth of the third-fourth gear sliding gear sleeve 27 and the fourth gear driven gear 26 are engaged to shift into the fourth gear. The fourth gear driven gear 26 drives the auxiliary box gear shaft 30 to rotate through the third-fourth gear fixed seat 28. The auxiliary box high-speed gear 16 of the auxiliary box gear shaft 30 is engaged with the large gear 25 of the auxiliary box double gear 15, and the power is transmitted to the auxiliary box double gear 15. The small gear 42 of the auxiliary box double gear is engaged with the auxiliary box low-speed gear 33, and the auxiliary box double gear 15 transmits the power to the auxiliary box low-speed gear 33. At this time, the side control mechanism in the shift control mechanism assembly 1 is used to select the gear, and the high-low speed sliding gear sleeve 31 is shifted towards the auxiliary box low-speed gear 33. The engaging teeth of the high-low speed sliding gear sleeve 31 and the auxiliary box low-speed gear 33 are engaged to shift into the low speed gear. The auxiliary box low-speed gear 33 transmits the power to the high-low speed fixed seat 32 through the high-low speed sliding gear sleeve 31. The high-low speed fixed seat 32 is fixed to the output shaft 18 through splines, so the power can be output from both ends of the output shaft.

Claims

1. A transmission with multiple forward gears and multiple reverse gears, comprising a shift control mechanism assembly (1), an input shaft assembly (2), an output shaft assembly (3), an intermediate shaft assembly (4), and a housing (5); It is characterized in that: Three sets of corresponding hole systems are provided on both sides of the housing (5), and an input shaft assembly (2), an output shaft assembly (3), and an intermediate shaft assembly (4) are respectively provided; the main body of the input shaft assembly (2) is the input shaft (6), which is fixed to the housing (5) through bearings; one end of the input shaft (6) is the power input end, and a reverse gear shifting gear (9), a shifting fixed tooth seat (12), a forward gear shifting gear (13), and a secondary box double gear (15) are sequentially arranged on the input shaft (6) from the power input end direction; the shifting fixed tooth seat (12) is fixed to the input shaft (6), and a shifting sliding gear sleeve (11) is arranged on the shifting fixed tooth seat (12); the main body of the output shaft assembly (3) is the output shaft (18), which is fixed to the housing (5) through bearings; the secondary box gear shaft (30) is sleeved on the output shaft (18); from the power input end direction of the input shaft, a first gear driven gear (20), a first and second gear fixed tooth seat (23), a second gear driven gear (24), a fourth gear driven gear (26), a third and fourth gear fixed tooth seat (28), and a third gear driven gear (29) are sequentially arranged on the secondary box gear shaft (30), and a fast and slow gear fixed tooth seat (32) and a secondary box slow gear (33) are arranged on the output shaft (18); the first and second gear fixed tooth seat (23) is fixed to the secondary box gear shaft (30), and a first and second gear sliding gear sleeve (22) is arranged on the first and second gear fixed tooth seat (23), the third and fourth gear fixed tooth seat (28) is fixed to the secondary box gear shaft (30), and a third and fourth gear sliding gear sleeve (27) is arranged on the third and fourth gear fixed tooth seat (28), the fast and slow gear fixed tooth seat (32) is fixed to the output shaft (18), and a fast and slow gear sliding gear sleeve (31) is arranged on the fast and slow gear fixed tooth seat (32); the main body of the intermediate shaft assembly (4) is the intermediate shaft (36), which is fixed to the housing (5) through bearings; from the power input end direction of the input shaft, they are the intermediate shaft first gear (21), the intermediate shaft second gear (37), the intermediate shaft fourth gear (38), the gear spacer sleeve (39), and the intermediate shaft third gear (40) in sequence. All four gears of the intermediate shaft are fixed to the intermediate shaft (36), and the three shafts are parallel to each other; the reverse gear shifting gear (9) of the input shaft (6) meshes with the intermediate shaft fourth gear (38) of the intermediate shaft (36); the forward gear shifting gear (13) of the input shaft (6) meshes with the third gear driven gear (29) of the output shaft (18), the large gear (25) of the secondary box double gear (15) meshes with the secondary box fast gear (16) of the secondary box gear shaft (30), and the small gear (42) of the secondary box double gear (15) meshes with the secondary box slow gear (33); the first gear driven gear (20) of the output shaft (18) meshes with the intermediate shaft first gear (21) of the intermediate shaft (36), the second gear driven gear (24) meshes with the intermediate shaft second gear (37), the fourth gear driven gear (26) meshes with the intermediate shaft fourth gear (38), and the third gear driven gear (29) meshes with the intermediate shaft third gear (40); The shift control mechanism assembly (1) includes a vertical control mechanism and a side control mechanism. The vertical control mechanism includes a vertical rocker and a vertical shift fork, and the side control mechanism includes a side rocker and a side shift fork.

Images