Double-cylinder two-gear transmission box and double-longitudinal-axis flow harvester

Abstract

The invention provides a double-roller two-gear transmission box and a double-longitudinal-axis flow harvester. An input shaft of the double-roller two-gear transmission box is installed in an input two-gear box assembly, a first driving gear and a second driving gear are installed on the input shaft, a shift lever shaft is installed in the input two-gear box assembly, a shift lever is installed on the shift lever shaft, the shift lever is connected with a meshing sleeve, a second shaft is installed in the input two-gear box assembly and an output box assembly, the meshing sleeve, a first driven gear and a second driven gear are installed on the second shaft, the first driven gear is engaged with the first driving gear, the second driven gear is engaged with the second driving gear, a second output driven gear is installed on one output shaft, a first output driven gear is installed on another output shaft, a constant engagement driving gear is installed on the second shaft, an idler is installed on an idler shaft, the constant engagement driving gear is engaged with the second output driven gear and the idler respectively, and the idler is engaged with the first output driven gear.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of transmission boxes, in particular to a double-cylinder two-gear transmission box and a double-longitudinal axial flow harvester. BACKGROUND

[0002] The cylinder transmission box is a core component of the transmission system of the harvester, and has the function of harvesting crops. When the harvester is driving in the field, the cylinder transmission box can drive the cylinder box to operate, thereby realizing the harvesting of crops.

[0003] According to the form of the cylinder, the double-longitudinal axial flow and single-longitudinal axial flow cylinder harvesters can be divided, and different crops can be harvested by replacing the header.

[0004] At present, the cylinder transmission box used by the double-longitudinal axial flow harvester on the market is a split structure, which occupies a large assembly space. SUMMARY

[0005] The present application solves the technical problems of the prior art, and provides a double-cylinder two-gear transmission box and a double-longitudinal axial flow harvester.

[0006] The technical scheme for solving the above technical problems is as follows: a double-cylinder two-gear transmission box, comprising: an input shaft, a one-gear driving gear, a two-gear driving gear, a second output driven gear, a constant mesh driving gear, an idler, an idler shaft, a first output driven gear, a pair of output shafts, a shift fork, a shift fork shaft, a one-gear driven gear, a meshing sleeve, a two-gear driven gear, a second shaft, an input two-gear box assembly, and an output box assembly; the input shaft is rotatably installed in the input two-gear box assembly; the one-gear driving gear and the two-gear driving gear are installed on the input shaft; the shift fork shaft is slidably installed in the input two-gear box assembly; the shift fork is installed on the shift fork shaft; the shift fork is connected with the meshing sleeve; the two sides of the second shaft are rotatably installed in the input two-gear box assembly and the output box assembly; the meshing sleeve, the one-gear driven gear, and the two-gear driven gear are installed on one side of the second shaft; the meshing sleeve is located between the one-gear driven gear and the two-gear driven gear; the one-gear driven gear is engaged with the one-gear driving gear; the two-gear driven gear is engaged with the two-gear driving gear; a pair of output shafts and the idler shaft are rotatably installed in the output box assembly; the second output driven gear is installed on one of the pair of output shafts; the first output driven gear is installed on the other of the pair of output shafts; the constant mesh driving gear is installed on the other side of the second shaft; the idler is installed on the idler shaft; the constant mesh driving gear is engaged with the second output driven gear and the idler, respectively; and the idler is engaged with the first output driven gear.

[0007] The beneficial effects of the technical scheme are that the integrated two-gear box structure is designed, the user can adjust the gear position according to the actual needs, the application range of the double-drum two-gear transmission box is improved, the whole box structure is compact, and the occupied assembly space is reduced.

[0008] Further, a plurality of long holes are arranged on the input two-gear box assembly, and a plurality of positioning bolts matched with the long holes are arranged on the output box assembly.

[0009] The beneficial effects of the above further technical scheme are that the input shaft position is adjustable, the installation requirements of different models are solved, different harvesting models can be matched, the problem of difficult assembly of the belt pulley belt is solved, and the assembly and adjustment of the assembly are facilitated.

[0010] Further, an input end adjusting rod for rotating the input two-gear box assembly is arranged on the outer side wall of the input two-gear box assembly, the plurality of long holes and the plurality of positioning bolts are located at the connection position of the input two-gear box assembly and the output box assembly, and the long holes are circular arc long holes.

[0011] The beneficial effects of the above further technical scheme are that the input two-gear box assembly and the output box assembly are connected through a stop opening, a division circle concentric with the stop opening is designed adjacent to the stop opening, the input two-gear box assembly is adjusted by rotating the input end adjusting rod to adjust the position of the input shaft, the position of the input shaft is adjustable, the installation requirements of different models are solved, different harvesting models can be matched, the problem of difficult assembly of the belt pulley belt is solved, and the assembly and adjustment of the assembly are facilitated.

[0012] Further, the input two-gear box assembly comprises a first shell and a connecting disc, one end of the connecting disc is connected with the first shell, the output box assembly comprises a drum box shell and a pair of drum box covers, the pair of drum box covers are connected with the drum box shell, the other end of the connecting disc is connected with the drum box shell, a hydraulic pneumatic O-shaped rubber ring is sleeved on the input two-gear box assembly, and the input two-gear box assembly is connected with the output box assembly through the hydraulic pneumatic O-shaped rubber ring.

[0013] The beneficial effects of the above further technical scheme are that the shell structure is designed, the installation and maintenance of the double-drum two-gear transmission box are facilitated, and the stability and reliability of the double-drum two-gear transmission box are improved.

[0014] Further, the input shaft is rotatably installed in the input two-gear box assembly through a first tapered roller bearing and a second tapered roller bearing, the first tapered roller bearing is located at the middle of the input shaft, and the second tapered roller bearing is located at one end of the input shaft, the middle of the input shaft is sleeved with an inner frame rotating shaft lip-shaped sealing ring and an input shaft bearing cover, the inner frame rotating shaft lip-shaped sealing ring is installed in the middle of the input shaft bearing cover, the input shaft bearing cover is connected with the input two-gear box assembly through a first hexagonal flange bolt, and a first adjusting gasket is arranged between the input shaft bearing cover and the first tapered roller bearing.

[0015] The beneficial effects of the above further technical scheme are: the structure design of the rotating position facilitates stable rotation of the shaft, prevents the shaft from shaking, prevents dust from the outside from entering the inside of the transmission box, and improves the stability and reliability of the double-drum two-gear transmission box.

[0016] Further, a two-gear spacer is sleeved on the input shaft, the two-gear spacer is located between the one-gear driving gear and the two-gear driving gear, and an oil baffle is arranged in the output box assembly, and the oil baffle is adjacent to the second output driven gear and the first output driven gear.

[0017] The beneficial effects of the above further technical scheme are: preventing the gear from shaking and preventing oil from splashing randomly.

[0018] Further, the output shaft is rotatably installed in the output box assembly through a pair of third tapered roller bearings, the pair of third tapered roller bearings are located at one end of the output shaft and the middle of the output shaft, respectively, the middle of the output shaft is sleeved with an oil seal seat and a second adjusting gasket, the oil seal seat is connected with the output box assembly through a second hexagonal flange bolt, and the second adjusting gasket is located between the oil seal seat and the third tapered roller bearing located at the middle of the output shaft.

[0019] The beneficial effects of the above further technical scheme are: the structure design of the rotating position facilitates stable rotation of the shaft, prevents the shaft from shaking, prevents dust from the outside from entering the inside of the transmission box, and improves the stability and reliability of the double-drum two-gear transmission box.

[0020] Further, the middle part of the two-shaft is sleeved with a spacer sleeve, a two-gear gear baffle, a radial needle and a retainer assembly, a needle spacer sleeve, the spacer sleeve is located between the two-gear passive gear and the always-engaged driving gear, the two-gear gear baffle is located between the spacer sleeve and the two-gear passive gear, the one-gear passive gear and the two-gear passive gear are installed on the two-shaft through the radial needle and the retainer assembly, the needle spacer sleeve is in abutment with the radial needle and the retainer assembly, the two ends of the two-shaft are respectively sleeved with a third tapered roller bearing and a fourth tapered roller bearing, the two-shaft is rotatably installed in the output box assembly through the third tapered roller bearing, the two-shaft is rotatably installed in the input two-gear box assembly through the fourth tapered roller bearing, a bearing pressing cover is installed on the output box assembly, the bearing pressing cover is in abutment with the third tapered roller bearing through a third adjusting gasket, a bearing cover is installed on the input two-gear box assembly, the bearing cover is in abutment with the fourth tapered roller bearing through a third hexagonal flange bolt.

[0021] The beneficial effects of the above further technical solutions are: facilitating the engagement and disengagement of the engagement sleeve and the gear, improving the stability and reliability of the transmission box. The structure design of the rotating position facilitates the stable rotation of the shaft, prevents the shaft from shaking, prevents the external dust from entering the transmission box, and improves the stability and reliability of the double-drum two-gear transmission box.

[0022] Further, the shift fork is installed on the shift fork shaft through an elastic cylindrical pin, an outer hexagonal plug, a shift fork shaft positioning spring and a steel ball are arranged in the input two-gear box assembly, the steel ball is slidably installed in the input two-gear box assembly, the two ends of the shift fork shaft positioning spring are respectively connected with the outer hexagonal plug and the steel ball, a plurality of grooves matched with the steel ball are arranged on the shift fork shaft, the steel ball is in abutment with the grooves, a shift fork shaft oil seal is sleeved on the shift fork shaft, and the shift fork shaft oil seal is connected with the input two-gear box assembly.

[0023] The beneficial effects of the above further technical solutions are: facilitating the fixation of the position of the shift fork shaft, facilitating the disengagement and engagement of the engagement sleeve and the gear, and improving the stability and reliability of the transmission box.

[0024] In addition, the application also provides a double-longitudinal axial flow harvester, which comprises the double-drum two-gear transmission box.

[0025] The beneficial effects of the application are: through the design of the integrated two-gear box structure, the user can adjust the gear position according to the actual needs, the application range of the double-drum two-gear transmission box is improved, the whole box structure is compact, and the occupation of the assembly space is reduced.

[0026] Advantages of the additional aspects of the application will become apparent in the following description, which is given by way of example only, from the description and from the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 Structure schematic view of double drum two-gear transmission case provided for the embodiment of the application.

[0028] Figure 2 Structure schematic view of double drum two-gear transmission case provided for the embodiment of the application.

[0029] Figure 3 Structure schematic view of double drum two-gear transmission case provided for the embodiment of the application.

[0030] BRIEF DESCRIPTION OF DRAWINGS: 1, input shaft; 2, inner package framework rotating shaft lip-shaped sealing ring; 3, input shaft bearing cover; 4, first hexagonal flange bolt; 5, first adjusting gasket; 6, first tapered roller bearing; 7, one-gear driving gear; 8, two-gear spacer sleeve; 9, first housing; 10, two-gear driving gear; 11, second tapered roller bearing; 12, connecting disc; 13, drum case housing; 14, third tapered roller bearing; 15, second output driven gear; 16, drum case cover; 17, oil seal seat; 18, second hexagonal flange bolt; 19, second adjusting gasket; 20, hydraulic pneumatic O-shaped rubber ring; 21, spacer sleeve; 22, third tapered roller bearing; 23, bearing gland; 24, third adjusting gasket; 25, always meshing driving gear; 26, idler; 27, idler shaft; 28, first output driven gear; 29, output shaft; 30, elastic cylindrical pin; 32, yoke; 33, yoke shaft; 34, outer hexagonal plug; 35, yoke shaft positioning spring; 36, steel ball; 37, yoke shaft oil seal; 38, one-gear driven gear; 39, two-gear gear baffle; 40, radial needle and retainer assembly; 41, fourth tapered roller bearing; 42, bearing cover; 43, needle spacer sleeve; 44, meshing sleeve; 45, two-gear driven gear; 48, third hexagonal flange bolt; 53, two shafts; 54, oil baffle; 61, input two-gear case assembly; 62, output case assembly; 63, input end adjusting rod; 64, positioning bolt; 65, long slot. DETAILED DESCRIPTION

[0031] The principles and features of the present application are described below in connection with the drawings, in which the examples are used only to explain the present application and are not used to limit the scope of the present application.

[0032] As Figures 1 to 3As shown, the embodiment of the present invention provides a double-drum two-speed transmission box, which includes: an input shaft 1, a first-speed driving gear 7, a second-speed driving gear 10, a second output driven gear 15, a constantly meshing driving gear 25, an idler wheel 26, an idler shaft 27, a first output driven gear 28, a pair of output shafts 29, a shift fork 32, a shift fork shaft 33, a first-speed driven gear 38, a meshing sleeve 44, a second-speed driven gear 45, a second shaft 53, an input two-speed box coupling 61, and an output box coupling 62. The input shaft 1 is rotatably mounted in the input two-speed box coupling 61, the first-speed driving gear 7 and the second-speed driving gear 10 are both mounted on the input shaft 1, the shift fork shaft 33 is slidably mounted in the input two-speed box coupling 61, the shift fork 32 is mounted on the shift fork shaft 33, the shift fork 32 is connected to the meshing sleeve 44, and the two sides of the second shaft 53 are rotatably mounted in the input two-speed box coupling 61 and the output box coupling 62 in a one-to-one corresponding manner. The sleeve 44, the first gear driven gear 38 and the second gear driven gear 45 are all mounted on one side of the second shaft 53, the meshing sleeve 44 is located between the first gear driven gear 38 and the second gear driven gear 45, the first gear driven gear 38 is meshed with the first gear driving gear 7, the second gear driven gear 45 is meshed with the second gear driving gear 10, a pair of the output shafts 29 and the idler shaft 27 are all rotatably mounted in the output box assembly 62, the second output driven gear 15 is mounted on one output shaft of the pair of output shafts 29, the first output driven gear 28 is mounted on the other output shaft of the pair of output shafts 29, the constantly meshed driving gear 25 is mounted on the other side of the second shaft 53, the idler 26 is mounted on the idler shaft 27, the constantly meshed driving gear 25 is respectively meshed with the second output driven gear 15 and the idler 26, and the idler 26 is meshed with the first output driven gear 28.

[0033] The beneficial effects of adopting the technical solution of the present invention are: by designing an integrated two-speed box structure, it is convenient for users to adjust the gear according to actual needs, thereby improving the applicability of the double-drum two-speed transmission box, making the entire box structure compact and reducing the occupied assembly space.

[0034] like Figures 1 to 3 As shown, further, the input two-speed box assembly 61 is provided with a plurality of elongated holes 65, and the output box assembly 62 is provided with a plurality of positioning bolts 64 adapted to the elongated holes 65, and the plurality of positioning bolts 64 are installed in the plurality of elongated holes 65 in a one-to-one correspondence.

[0035] The beneficial effects of adopting the above-mentioned further technical solution are: making the input shaft position adjustable, solving the installation requirements of different models, matching different harvesting models, solving the problem of difficulty in assembling pulleys and belts, and facilitating assembly and adjustment of the assembly.

[0036] The positioning bolt 64 slides in the long hole 65 within an angle range of 9.5 degrees. That is, the input two-gear box assembly 61 can rotate 9.5 degrees relative to the output box assembly 62.

[0037] Figure 2 The structure inside the dashed box is the structure of the input two-gear box assembly.

[0038] As shown in Figures 1 to 3 Further, the input end adjusting rod 63 for rotating the input two-gear box assembly 61 is arranged on the outer side wall of the input two-gear box assembly 61. The long hole 65 is a circular arc long hole.

[0039] The beneficial effects of the above further technical solution are as follows: the input two-gear box assembly and the output box assembly are connected through a stopper. The four long holes of the index circle concentric with the stopper are designed adjacent to the stopper. The input shaft position can be adjusted by adjusting the input end adjusting rod to rotate the input two-gear box assembly. The input shaft position is adjustable, which can meet the installation requirements of different models, match different harvesting models, solve the problem of difficult assembly of the pulley belt, and facilitate the assembly and adjustment of the assembly.

[0040] As shown in Figures 1 to 3 Further, the input two-gear box assembly 61 includes a first housing 9 and a connecting disc 12. One end of the connecting disc 12 is connected to the first housing 9. The output box assembly 62 includes a drum box housing 13 and a pair of drum box covers 16. The other end of the connecting disc 12 is connected to the drum box housing 13. A hydraulic pneumatic O-shaped rubber ring 20 is arranged on the input two-gear box assembly 61. The input two-gear box assembly 61 is connected to the output box assembly 62 through the hydraulic pneumatic O-shaped rubber ring 20.

[0041] The beneficial effects of the above further technical solution are as follows: the design of the housing structure facilitates the installation and maintenance of the double-drum two-gear transmission box, and improves the stability and reliability of the double-drum two-gear transmission box.

[0042] As shown in Figures 1 to 3As shown, further, the input shaft 1 is rotatably mounted in the input two-stop box assembly 61 through a first tapered roller bearing 6 and a second tapered roller bearing 11, respectively, the first tapered roller bearing 6 is located in the middle of the input shaft 1, and the second tapered roller bearing 11 is located at one end of the input shaft 1, the middle of the input shaft 1 is sleeved with an inner skeleton rotating shaft lip seal ring 2, an input shaft bearing cover 3, the inner skeleton rotating shaft lip seal ring 2 is mounted in the middle of the input shaft bearing cover 3, the input shaft bearing cover 3 is connected with the input two-stop box assembly 61 through a first hexagonal flange bolt 4, and a first adjusting gasket 5 is arranged between the input shaft bearing cover 3 and the first tapered roller bearing 6, and the first adjusting gasket 5 is sleeved on the input shaft 1.

[0043] The beneficial effects of the above further technical scheme are: the structure design of the rotating position facilitates the stable rotation of the shaft, prevents the shaft from shaking, prevents dust from the outside from entering the inside of the transmission box, and improves the stability and reliability of the double-drum two-stop transmission box.

[0044] As shown in the figure, Figures 1 to 3 Further, a two-stop spacer 8 is sleeved on the input shaft 1, the two-stop spacer 8 is located between the one-stop driving gear 7 and the two-stop driving gear 10, and an oil baffle 54 is arranged in the output box assembly 62, and the oil baffle 54 is adjacent to the second output driven gear 15 and the first output driven gear 28.

[0045] The beneficial effects of the above further technical scheme are: preventing the gear from shaking and preventing the oil from splashing randomly.

[0046] As shown in the figure, Figures 1 to 3 Further, the output shaft 29 is rotatably mounted in the output box assembly 62 through a pair of third tapered roller bearings 14, the pair of third tapered roller bearings 14 are located at one end of the output shaft 29 and in the middle of the output shaft 29, respectively, the middle of the output shaft 29 is sleeved with an oil seal seat 17 and a second adjusting gasket 19, the oil seal seat 17 is connected with the output box assembly 62 through a second hexagonal flange bolt 18, and the second adjusting gasket 19 is located between the oil seal seat 17 and the third tapered roller bearing 14 located in the middle of the output shaft 29.

[0047] The beneficial effects of the above further technical scheme are: the structure design of the rotating position facilitates the stable rotation of the shaft, prevents the shaft from shaking, prevents dust from the outside from entering the inside of the transmission box, and improves the stability and reliability of the double-drum two-stop transmission box.

[0048] As shown in the figure, Figures 1 to 3As shown, further, the middle part of the second shaft 53 is sleeved with a spacer sleeve 21, a two-gear gear baffle 39, a centripetal needle and cage assembly 40, and a needle spacer sleeve 43. The spacer sleeve 21 is located between the two-gear passive gear 45 and the always-engaged driving gear 25. The two-gear gear baffle 39 is located between the spacer sleeve 21 and the two-gear passive gear 45. The one-gear passive gear 38 and the two-gear passive gear 45 are installed on the second shaft 53 through the centripetal needle and cage assembly 40. The needle spacer sleeve 43 is in abutment with the centripetal needle and cage assembly 40. The two ends of the second shaft 53 are respectively sleeved with a third tapered roller bearing 22 and a fourth tapered roller bearing 41. The second shaft 53 is rotatably installed in the output box assembly 62 through the third tapered roller bearing 22. The second shaft 53 is rotatably installed in the input two-gear box assembly 61 through the fourth tapered roller bearing 41. A bearing pressing cover 23 is installed on the output box assembly 62. The bearing pressing cover 23 is in abutment with the third tapered roller bearing 22 through a third adjusting gasket 24. A bearing cover 42 is installed on the input two-gear box assembly 61. The bearing cover 42 is in abutment with the fourth tapered roller bearing 41 through a third hexagonal flange bolt 48.

[0049] The beneficial effects of the above further technical solutions are: facilitating the engagement and disengagement of the engagement sleeve and the gear, improving the stability and reliability of the transmission box. The structural design of the rotating position facilitates the stable rotation of the shaft, prevents the shaft from shaking, prevents external dust from entering the transmission box, and improves the stability and reliability of the double-drum two-gear transmission box.

[0050] As shown in the figure, Figures 1 to 3 Further, the shift fork 32 is installed on the shift fork shaft 33 through an elastic cylindrical pin 30. An outer hexagonal plug 34, a shift fork shaft positioning spring 35, and a steel ball 36 are arranged in the input two-gear box assembly 61. The steel ball 36 is slidingly installed in the input two-gear box assembly 61. The two ends of the shift fork shaft positioning spring 35 are respectively connected with the outer hexagonal plug 34 and the steel ball 36. A plurality of grooves adapted to the steel ball 36 are arranged on the shift fork shaft 33. The steel ball 36 is in abutment with the grooves. A shift fork shaft oil seal 37 is sleeved on the shift fork shaft 33. The shift fork shaft oil seal 37 is connected with the input two-gear box assembly 61.

[0051] The beneficial effects of the above further technical solutions are: facilitating the fixation of the position of the shift fork shaft, facilitating the disengagement and engagement of the engagement sleeve and the gear, and improving the stability and reliability of the transmission box.

[0052] The double-cylinder two-gear transmission box in the application is a one-piece two-gear box structure, and an adjustable input end mechanism is designed to solve the installation requirements of different models or the problem of difficult assembly of the belt pulley.

[0053] The double-cylinder two-gear transmission box can be a double-cylinder two-gear transmission box with one input end and two output ends for a wheeled harvesting machine, and the input position is adjustable.

[0054] The double-cylinder two-gear transmission box has the following specific embodiments:

[0055] First gear: the shift fork shaft 33 drives the shift fork 32 to move, thereby pushing the engagement sleeve 44 to combine with the first gear driven gear 38, thereby driving the second shaft 53 and the always-engaged driving gear 25 to rotate, at the same time, the second output driven gear 15 and the first output driven gear 28 drive the two output shafts 29 to rotate, realizing the engagement of the first gear.

[0056] First gear power transmission route: power is transmitted from the input shaft, the first gear driving gear, the first gear driven gear, the second shaft, the always-engaged driving gear, the always-engaged driving gear to the second output driven gear and the output shaft, and from the always-engaged driving gear to the idler gear, the first output driven gear and the output shaft.

[0057] Second gear: the shift fork shaft 33 drives the shift fork 32 to move, thereby pushing the engagement sleeve 44 to combine with the second gear driven gear 45, thereby driving the second shaft 53 and the always-engaged driving gear 25 to rotate, at the same time, the second output driven gear 15 and the first output driven gear 28 drive the two output shafts 29 to rotate, realizing the engagement of the second gear.

[0058] Second gear power transmission route: power is transmitted from the input shaft, the second gear driving gear, the second gear driven gear, the second shaft, the always-engaged driving gear, the always-engaged driving gear to the second output driven gear and the output shaft, and from the always-engaged driving gear to the idler gear, the first output driven gear and the output shaft.

[0059] Input position adjustable structure: the input two-gear box assembly 61 and the output box assembly 62 are connected through a stop, and the stop is designed with a concentric index circle with four long strip holes. The input end adjusting rod can adjust the rotation of the input two-gear box assembly to adjust the position of the input shaft.

[0060] The double-cylinder two-gear transmission box is first used on a double-longitudinal axial flow harvester, and the whole box structure is compact, and the input shaft position adjustable structure is adopted, which is convenient for assembly and adjustment of the assembly.

[0061] Alternatively, the transmission route and structure are the same, only the gear parameters are changed to constitute a new type of adjustable input position integrated double-drum two-gear transmission box.

[0062] For the first time, the input shaft position is adjustable in the drum transmission box, which can match different harvester models, and an integrated double-drum two-gear transmission box (double-drum two-gear transmission box) is used on a double-longitudinal axial flow harvester.

[0063] In addition, the application also provides a double-longitudinal axial flow harvester, which comprises the double-drum two-gear transmission box according to any one of the preceding.

[0064] The beneficial effects of the technical scheme of the application are: by designing the integrated two-gear box structure, the user can adjust the gear position according to the actual needs, improve the application range of the double-drum two-gear transmission box, the whole box structure is compact, and the occupation of the assembly space is reduced.

[0065] Finally, it should be pointed out that: the above embodiments are only used to illustrate the technical solutions of the application, and not to limit them; although the application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the application.

Claims

1. A double-drum two-speed transmission box, characterized in that: include: An input shaft (1), a first-gear driving gear (7), a second-gear driving gear (10), a second output driven gear (15), a constantly meshed driving gear (25), an idler wheel (26), an idler shaft (27), a first output driven gear (28), a pair of output shafts (29), a shift fork (32), a shift fork shaft (33), a first-gear driven gear (38), a meshing sleeve (44), a second-gear driven gear (45), a second shaft (53), an input two-gear box assembly (61), and an output box assembly (62), wherein the input shaft (1) is rotatably mounted on the input In the two-speed box assembly (61), the first-speed driving gear (7) and the second-speed driving gear (10) are both mounted on the input shaft (1), the shift fork shaft (33) is slidably mounted in the input two-speed box assembly (61), the shift fork (32) is mounted on the shift fork shaft (33), the shift fork (32) is connected to the engagement sleeve (44), and the two sides of the two shafts (53) are rotatably mounted in the input two-speed box assembly (61) and the output box assembly (62) in a one-to-one corresponding manner. The driven gear (38) and the second gear driven gear (45) are both mounted on one side of the second shaft (53). The meshing sleeve (44) is located between the first gear driven gear (38) and the second gear driven gear (45). The first gear driven gear (38) is meshed with the first gear driving gear (7). The second gear driven gear (45) is meshed with the second gear driving gear (10). A pair of the output shafts (29) and the idler shaft (27) are both rotatably mounted in the output box assembly (62). The second output driven gear (38) is meshed with the first gear driving gear (7). The wheel (15) is mounted on one output shaft of a pair of output shafts (29), the first output driven gear (28) is mounted on the other output shaft of the pair of output shafts (29), the constant meshing driving gear (25) is mounted on the other side of the two shafts (53), the idler gear (26) is mounted on the idler gear shaft (27), the constant meshing driving gear (25) is meshed with the second output driven gear (15) and the idler gear (26), and the idler gear (26) is meshed with the first output driven gear (28); The input two-speed box assembly (61) is provided with a plurality of elongated holes, and the output box assembly (62) is provided with a plurality of positioning bolts (64) adapted to the elongated holes, and the plurality of positioning bolts (64) are installed in the plurality of elongated holes in a one-to-one correspondence; The input two-speed box assembly rotates relative to the output box assembly with the two shaft axes as the center of the circle, so as to adjust the position of the power input shaft; An input end adjusting rod (63) for rotating the input two-stop box assembly (61) is provided on the outer side wall of the input two-stop box assembly (61); a plurality of the elongated holes and a plurality of the positioning bolts (64) are located at the connection position between the input two-stop box assembly (61) and the output box assembly (62); and the elongated holes are arc-shaped elongated holes. The input two-speed box assembly (61) comprises: a first shell (9), a connecting disk (12), one end of the connecting disk (12) is connected to the first shell (9), the output box assembly (62) comprises: a roller box shell (13), a pair of roller box covers (16), the pair of roller box covers (16) are connected to the roller box shell (13), and the other end of the connecting disk (12) is connected to the roller box shell (13), the input two-speed box assembly (61) is provided with a hydraulic and pneumatic O-shaped rubber ring (20), and the input two-speed box assembly (61) is connected to the output box assembly (62) through the hydraulic and pneumatic O-shaped rubber ring (20); The input shaft (1) extends from the side of the input two-speed box assembly (61) away from the output box assembly (62), the second shaft (53) extends from the side of the input two-speed box assembly (61) close to the output box assembly (62), and the output shaft (29) extends from the side of the output box assembly (62) away from the input two-speed box assembly (61).

2. A double-drum two-speed transmission box according to claim 1, characterized in that: The input shaft (1) is rotatably mounted in the input two-speed box assembly (61) through a first tapered roller bearing (6) and a second tapered roller bearing (11), respectively. The first tapered roller bearing (6) is located in the middle of the input shaft (1), and the second tapered roller bearing (11) is located at one end of the input shaft (1). The middle of the input shaft (1) is provided with an inner skeleton rotating shaft lip seal ring (2) and an input shaft bearing cover (3). The inner skeleton rotating shaft lip seal ring (2) is installed in the middle of the input shaft bearing cover (3). The input shaft bearing cover (3) is connected to the input two-speed box assembly (61) through a first hexagonal flange bolt (4). A first adjustment gasket (5) is provided between the input shaft bearing cover (3) and the first tapered roller bearing (6), and the first adjustment gasket (5) is sleeved on the input shaft (1).

3. A double-drum two-speed transmission box according to claim 1, characterized in that: The input shaft (1) is sleeved with a first-second gear spacer (8), the first-second gear spacer (8) being located between the first-gear driving gear (7) and the second-gear driving gear (10), and the output box assembly (62) is provided with an oil baffle (54), the oil baffle (54) being adjacent to the second output driven gear (15) and the first output driven gear (28).

4. A double-drum two-speed transmission box according to claim 1, characterized in that: The output shaft (29) is rotatably mounted in the output box assembly (62) through a pair of third tapered roller bearings (14). The pair of third tapered roller bearings (14) are located one-to-one at one end of the output shaft (29) and the middle of the output shaft (29). The middle of the output shaft (29) is sleeved with an oil seal seat (17) and a second adjustment gasket (19). The oil seal seat (17) is connected to the output box assembly (62) through a second hexagonal flange bolt (18). The second adjustment gasket (19) is located between the oil seal seat (17) and the third tapered roller bearing (14) located in the middle of the output shaft (29).

5. The double-drum two-speed transmission box according to claim 1, characterized in that: The middle part of the two shafts (53) is provided with a spacer sleeve (21), a second gear baffle (39), a centripetal needle roller and retainer assembly (40), and a needle roller spacer sleeve (43). The spacer sleeve (21) is located between the second gear driven gear (45) and the constant meshing driving gear (25). The second gear baffle (39) is located between the spacer sleeve (21) and the second gear driven gear (45). The first gear driven gear (38) and the second gear driven gear (45) are installed on the two shafts (53) through the centripetal needle roller and retainer assembly (40). The needle roller spacer sleeve (43) is in contact with the centripetal needle roller and retainer assembly (40). The two ends of the two shafts (53) are respectively provided with a third cone. Roller bearing (22) and fourth tapered roller bearing (41), the two shafts (53) are rotatably mounted in the output box assembly (62) through the third tapered roller bearing (22), the two shafts (53) are rotatably mounted in the input two-speed box assembly (61) through the fourth tapered roller bearing (41), a bearing pressure cover (23) is mounted on the output box assembly (62), the bearing pressure cover (23) is in contact with the third tapered roller bearing (22) through a third adjusting gasket (24), a bearing cover (42) is mounted on the input two-speed box assembly (61), the bearing cover (42) is in contact with the fourth tapered roller bearing (41) through a third hexagonal flange bolt (48).

6. A double-drum two-speed transmission box according to claim 1, characterized in that: The shift fork (32) is mounted on the shift fork shaft (33) via an elastic cylindrical pin (30); an external hexagonal screw plug (34), a shift fork shaft positioning spring (35), and a steel ball (36) are provided in the input two-speed box assembly (61); the steel ball (36) is slidably mounted in the input two-speed box assembly (61); the two ends of the shift fork shaft positioning spring (35) are connected to the external hexagonal screw plug (34) and the steel ball (36) in a one-to-one correspondence; a plurality of grooves adapted to the steel ball (36) are provided on the shift fork shaft (33); the steel ball (36) abuts against the grooves; a shift fork shaft oil seal (37) is sleeved on the shift fork shaft (33); and the shift fork shaft oil seal (37) is connected to the input two-speed box assembly (61).

7. A double longitudinal axial flow harvester, characterized in that: A double-drum two-speed transmission box comprising any one of claims 1 to 6.

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