Two-in-one multi-gear adjustment integrated gearbox

Abstract

The utility model discloses a two-in-one multi-gear adjustment integrated gearbox which comprises a box body, an input shaft and an output shaft are rotationally installed on the box body, the input shaft and the output shaft are in transmission connection through a gear shifting adjustment structure, and the gear shifting adjustment structure is used for changing the transmission ratio between the input shaft and the output shaft; the gear shifting adjusting structure is arranged in the box body and comprises a transmission shaft, a planetary gear shifting mechanism and a gear shifting mechanism, the transmission shaft is rotationally arranged in the box body, the planetary gear shifting mechanism is in transmission connection between the input shaft and the transmission shaft, and the planetary gear shifting mechanism comprises a first state and a second state which can be switched mutually. When the gear box is used, various speed ratios can be adjusted, the requirements of different working scenes can be met, and the gear box has high flexibility and applicability.

Description

Technical Field

[0001] The utility model relates to the technical field of gear boxes, in particular to a two-in-one multi-speed adjustment integrated gear box. Background Art

[0002] The gearbox is an important transmission device. Generally, an input shaft, an intermediate shaft and an output shaft are arranged in the gearbox. The input shaft transmits the rotational torque to the output shaft through the gear structure in the middle.

[0003] The existing gearbox speed ratio is relatively simple and cannot meet the needs of different working scenarios, and its flexibility and adaptability are low. Summary of the invention

[0004] In view of the above problems existing in the existing gearboxes, the present invention aims to provide a two-in-one multi-speed adjustment integrated gearbox with adjustable speed ratio, high flexibility and high adaptability.

[0005] The specific technical solutions are as follows:

[0006] A two-in-one multi-speed adjustment integrated gearbox, comprising: a box body, an input shaft and an output shaft are rotatably mounted on the box body, the input shaft and the output shaft are transmission-connected via a shift adjustment structure, and the shift adjustment structure is used to change the transmission ratio between the input shaft and the output shaft;

[0007] The gear shift adjustment structure is arranged in the box body, and comprises:

[0008] A transmission shaft, the transmission shaft being rotatably disposed in the housing;

[0009] a planetary shift mechanism, the planetary shift mechanism being transmission-connected between the input shaft and the transmission shaft, and comprising a first state and a second state that can be switched to each other, wherein the transmission ratio between the output shaft and the transmission shaft when the planetary shift mechanism is in the first state is different from the transmission ratio between the output shaft and the transmission shaft when the planetary shift mechanism is in the second state;

[0010] A gear shift mechanism, the gear shift mechanism is transmission-connected between the transmission shaft and the output shaft, and includes at least a first state and a second state that can be switched between each other, and the transmission ratio between the transmission shaft and the output shaft when the gear shift mechanism is in the first state and the transmission ratio between the transmission shaft and the output shaft when the gear shift mechanism is in the second state are different from each other.

[0011] As a further improvement and optimization of this solution, the planetary shift mechanism includes:

[0012] An output wheel, the output wheel is coaxially connected to the output end of the input shaft, and the outer wall of the output shaft has a first external spline;

[0013] A bearing sleeve, the bearing sleeve is mounted on the housing and is coaxially sleeved on the outside of the input shaft, and the outside of the bearing sleeve has a second external spline;

[0014] An internal gear, which is rotatably mounted in the housing and coaxially sleeved on the outside of the transmission shaft, and the outside of the internal gear has a third external spline;

[0015] A transmission gear, wherein the transmission gear is sleeved on the driving end of the transmission shaft, and a planetary gear is meshedly connected between the transmission gear and the internal gear, and the planetary gear is eccentrically rotated on the output wheel;

[0016] A first shift sleeve, wherein the first shift sleeve is operable to be axially slidably sleeved on the outside of the output wheel, the bearing sleeve, and the internal gear, and an inner wall of the first shift sleeve is provided with a first internal spline that matches and meshes with the third external spline, and a second internal spline that matches and meshes with the first external spline / the second external spline, and the first shift sleeve slides axially so that the second internal spline is meshed and connected with the first external spline / the second external spline, and when the planetary shift mechanism is in the first state, the second internal spline is meshed and connected with the first external spline, and when the planetary shift mechanism is in the second state, the second internal spline is meshed and connected with the second external spline.

[0017] As a further improvement and optimization of this solution, the gear shift mechanism includes: a second drive cylinder, a second drive wheel and a third drive cylinder which are sequentially sleeved on the outside of the transmission shaft along the axial direction of the transmission shaft, wherein the second drive cylinder and the third drive cylinder are both rotatably sleeved on the outside of the transmission shaft;

[0018] Also includes:

[0019] A third shift sleeve, the third shift sleeve is sleeved on the outside of the second drive cylinder, the second drive wheel and the third drive cylinder, and the inner wall of the third shift sleeve has a fourth internal spline, the outside of the second drive cylinder has a sixth external spline, the outside of the second drive wheel has a seventh external spline, and the seventh external spline is always meshed with the fourth internal spline, the outside of the third drive cylinder has an eighth external spline, and the third shift sleeve is operable to slide axially so that the fourth internal spline is meshed with or disengaged from the sixth external spline / the eighth external spline;

[0020] a second gear set, the second gear set being transmission-connected between the second driving cylinder and the output shaft;

[0021] The third gear set is transmission-connected between the third driving cylinder and the output shaft, and the transmission ratio of the third gear set is different from that of the second gear set. When the gear shifting mechanism is in the first state, the fourth internal spline is respectively meshed and connected with the sixth external spline and the seventh external spline. When the gear shifting mechanism is in the second state, the fourth internal spline is respectively meshed and connected with the seventh external spline and the eighth external spline.

[0022] As a further improvement and optimization of the present solution, the gear shift mechanism also includes a third state that can be switched with the first state and the second state. The transmission ratio between the transmission shaft and the output shaft when the gear shift mechanism is in the third state, the transmission ratio between the transmission shaft and the output shaft when the gear shift mechanism is in the first state, and the transmission ratio between the transmission shaft and the output shaft when the gear shift mechanism is in the second state are all different.

[0023] As a further improvement and optimization of this solution, the gear shift mechanism further includes a first driving wheel and a first driving cylinder which are sequentially sleeved on the outside of the transmission shaft along the axial direction of the transmission shaft, and the first driving cylinder is rotatably mounted on the outside of the transmission shaft;

[0024] Also includes:

[0025] A second shift sleeve, the second shift sleeve is arranged outside the first drive wheel and the first drive cylinder, and the inner wall of the second shift sleeve has a third internal spline, the first drive wheel has a fourth external spline matched with the third internal spline, the first drive cylinder has a fifth external spline matched with the third internal spline, and the third shift sleeve is operable to slide axially so that the third internal spline is engaged or disengaged with the fifth external spline;

[0026] a first gear set, wherein the first gear set is transmission-connected between the first driving cylinder and the output shaft, and a transmission ratio of the first gear set, a transmission ratio of the third gear set, and a transmission ratio of the second gear set are all different from each other;

[0027] When the gear shift mechanism is in the first state / second state, the third internal spline is disengaged from the fifth external spline; when the gear shift mechanism is in the third state, the third internal spline is engaged with the fifth external spline, and the fourth internal spline is disengaged from the sixth external spline and the eighth external spline.

[0028] As a further improvement and optimization of this solution, the transmission ratio of the first gear set is greater than one, and the transmission ratios of the second gear set and the third gear set are less than one.

[0029] As a further improvement and optimization of this solution, the first gear set, the second gear set, and the third gear set all include a driving gear and a driven gear, the driving gear is coaxially connected to the first driving cylinder / the second driving cylinder / the third driving cylinder, and the driven gear is sleeved on the outside of the output shaft.

[0030] As a further improvement and optimization of this solution, the transmission gear and the transmission shaft, as well as the output wheel and the input shaft are all integrated structures.

[0031] As a further improvement and optimization of this solution, the driving gear and the first driving cylinder / the second driving cylinder / the third driving cylinder are an integrated structure.

[0032] As a further improvement and optimization of the present solution, the housing is further provided with a first shift fork mechanism, a second shift fork mechanism and a third shift fork mechanism; the first shift fork mechanism is transmission-connected to the first shift sleeve for driving the first shift sleeve to slide axially; the second shift fork mechanism is transmission-connected to the second shift sleeve for driving the second shift sleeve to slide axially; the third shift fork mechanism is transmission-connected to the third shift sleeve for driving the third shift sleeve to slide axially.

[0033] Compared with the prior art, the above technical solution has the following positive effects:

[0034] (1) The input shaft and the transmission shaft of the utility model are connected through a planetary shift mechanism, and the planetary shift mechanism is switched between the first state and the second state, so that two adjustable transmission ratios are achieved between the input shaft and the transmission shaft. At the same time, the transmission shaft and the output shaft are connected through a gear shift mechanism, and the gear shift mechanism is switched between the first state and the second state, so that at least two adjustable transmission ratios are achieved between the input shaft and the transmission shaft. Therefore, the gear box has a variety of speed ratios for adjustment when in use, which can meet the needs of different working scenarios and has high flexibility and applicability.

[0035] (2) The gear shift mechanism of the present invention also includes a third state that can be switched with the first state and the second state, so that there are three speed ratios between the transmission shaft and the output shaft, further improving the applicability and application flexibility of the equipment.

[0036] (3) In the utility model, the axial position of the first shift sleeve / the second shift sleeve / the third shift sleeve can be adjusted by turning the handle of the first shift fork mechanism / the second shift fork mechanism / the third shift fork mechanism, thereby realizing the state switching of the planetary shift mechanism / the gear shift mechanism, so as to meet the requirements of different speed ratios of the equipment, and the operation is convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 This is a structural schematic diagram of a two-in-one multi-speed adjustment integrated gearbox of the utility model;

[0038] Figure 2 This is an enlarged schematic diagram of point A of a two-in-one multi-speed adjustment integrated gearbox of the utility model;

[0039] Figure 3 This is an enlarged schematic diagram of point B of a two-in-one multi-speed adjustment integrated gearbox of the utility model;

[0040] Figure 4 This is an enlarged schematic diagram of the C position of a two-in-one multi-speed adjustment integrated gearbox of the utility model.

[0041] Figure 5 This is a schematic diagram of the external structure of a two-in-one multi-speed adjustment integrated gearbox of the utility model;

[0042] Figure 6 It is a structural schematic diagram of a first shift fork mechanism of a two-in-one multi-speed adjustment integrated gear box of the utility model;

[0043] In the accompanying drawings: 1, housing; 2, input shaft; 3, transmission shaft; 4, output shaft; 5, planetary shift mechanism; 6, gear shift mechanism; 7, first shift fork mechanism; 8, second shift fork mechanism; 9, third shift fork mechanism; 51, bearing sleeve; 52, output wheel; 53, first shift sleeve; 54, planetary gear; 55, internal gear; 56, transmission gear; 511, second external spline; 521, first external spline; 531, second internal spline; 532, first internal spline; 551, third external spline; 60, third shift sleeve; 61, second shift sleeve; 62, first shift sleeve; 63, second shift sleeve; 64, second shift sleeve; 65, third shift sleeve; 66, third shift sleeve; 67, third shift sleeve; 68, third shift sleeve; 69, third shift sleeve; 70, third shift sleeve; 71, second shift sleeve; 72, third shift sleeve; 73, third shift sleeve; 74, third shift sleeve; 75, third shift sleeve; 76, third shift sleeve; 77, third shift sleeve; 78, third shift sleeve; 79, third shift sleeve; 80, third shift sleeve; 81, third shift sleeve; 82, third shift sleeve; 83, third shift sleeve; 84, third shift sleeve; 85, third shift sleeve; 86, third shift sleeve; 87, third shift sleeve; 88, third shift sleeve; 89, third shift sleeve; 90, third shift sleeve; 91, third shift sleeve; 92, third shift sleeve; 93, third shift sleeve; 94, third shift sleeve; 95, third shift sleeve; 96, third shift sleeve; 97, third shift sleeve; 98, third shift sleeve; 99, third shift sleeve; 100, third shift sleeve; 101, third shift sleeve; 102, third shift sleeve; 2. First driving wheel; 63. First driving cylinder; 64. First gear set; 65. Second driving cylinder; 66. Second driving wheel; 67. Third driving cylinder; 68. Second gear set; 69. Third gear set; 601. Fourth internal spline; 611. Third internal spline; 621. Fourth external spline; 631. Fifth external spline; 641. Active gear; 642. Driven gear; 651. Sixth external spline; 661. Seventh external spline; 671. Eighth external spline; 71. Shifting ring; 72. Mounting block; 73. Connecting rod; 74. Rotating shaft; 75. Handle. DETAILED DESCRIPTION

[0044] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0045] In the description of the present invention, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, if the terms "first", "second", "third" appear, they are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0046] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] Figure 1 This is a schematic diagram of the structure of a two-in-one multi-speed adjustment integrated gearbox of the utility model. Figure 2 This is an enlarged schematic diagram of point A of a two-in-one multi-speed adjustment integrated gearbox of the utility model. Figure 3 This is an enlarged schematic diagram of point B of a two-in-one multi-speed adjustment integrated gearbox of the utility model. Figure 4 This is an enlarged schematic diagram of the C position of a two-in-one multi-speed adjustment integrated gearbox of the utility model. Figure 5 This is a schematic diagram of the external structure of a two-in-one multi-speed adjustment integrated gearbox of the utility model. Figure 6 Schematic diagram of the structure of the first fork mechanism of a two-in-one multi-speed adjustment integrated gearbox of the utility model. Figure 1-6As shown, a preferred embodiment of a two-in-one multi-speed adjustment integrated gearbox is shown, comprising: a housing 1, an input shaft 2 and an output shaft 4 are rotatably mounted on the housing 1, the input shaft 2 and the output shaft 4 are transmission-connected via a shift adjustment structure, the shift adjustment structure is used to change the transmission ratio between the input shaft 2 and the output shaft 4; the shift adjustment structure is arranged in the housing 1, and comprises: a transmission shaft 3, a planetary shift mechanism 5 and a gear shift mechanism 6, the transmission shaft 3 is rotatably arranged in the housing 1, the planetary shift mechanism 5 is transmission-connected between the input shaft 2 and the transmission shaft 3, and comprises a gear shift mechanism 6 which can be mutually In the switching first state and the second state, the transmission ratio between the output shaft 4 and the transmission shaft 3 of the planetary shift mechanism 5 in the first state is different from the transmission ratio between the output shaft 4 and the transmission shaft 3 of the planetary shift mechanism 5 in the second state, and the gear shift mechanism 6 is transmission-connected between the transmission shaft 3 and the output shaft 4, which at least includes a first state and a second state that can be switched with each other, and the transmission ratio between the transmission shaft 3 and the output shaft 4 of the gear shift mechanism 6 in the first state and the transmission ratio between the transmission shaft 3 and the output shaft 4 of the gear shift mechanism 6 in the second state are different from each other.

[0048] In this embodiment, the input shaft 2 and the transmission shaft 3 are connected via a planetary shifting mechanism, and the planetary shifting mechanism is switched between the first state and the second state, so that two adjustable transmission ratios are achieved between the input shaft 2 and the transmission shaft 3. At the same time, the transmission shaft 3 and the output shaft 4 are connected via a gear shifting mechanism, and the gear shifting mechanism is switched between the first state and the second state, so that at least two adjustable transmission ratios are achieved between the input shaft 2 and the transmission shaft 3, so that the gear box has a variety of speed ratios for adjustment when in use, which can meet the needs of different working scenarios and has high flexibility and applicability.

[0049] Further, as a preferred embodiment, the planetary shift mechanism 5 includes an output wheel 52, a bearing sleeve 51, an internal gear 55, a transmission gear 56 and a first shift sleeve 53, the output wheel 52 is coaxially connected to the output end of the input shaft 2, the outer wall of the output shaft 4 has a first external spline 521, the bearing sleeve 51 is installed on the housing 1, and is coaxially sleeved on the outside of the input shaft 2, and the outside of the bearing sleeve 51 has a second external spline 511, the internal gear 55 is rotatably installed in the housing 1, and is coaxially sleeved on the outside of the transmission shaft 3, the outside of the internal gear 55 has a third external spline 551, the transmission gear 56 is sleeved on the driving end of the transmission shaft 3, and the transmission gear 56 is meshed with the internal gear 55 to be connected with a planetary gear 54, and the planetary gear 54 rotates eccentrically Arranged on the output wheel 52, the first shift sleeve 53 is operable to be axially slidably sleeved on the outside of the output wheel 52, the bearing sleeve 51, and the internal gear 55, and the inner wall of the first shift sleeve 53 is provided with a first internal spline 532 matching and meshing with the third external spline 551, and a second internal spline 531 matching and meshing with the first external spline 521 / the second external spline 511. The first shift sleeve 53 slides axially to make the second internal spline 531 meshing and connected with the first external spline 521 / the second external spline 511, and when the planetary shift mechanism 5 is in the first state, the second internal spline 531 meshes and connects with the first external spline 521, and when the planetary shift mechanism is in the second state, the second internal spline 531 meshes and connects with the second external spline 511.

[0050] When the planetary shift mechanism 5 is in the first state, the input shaft 2 drives the output wheel 52 to rotate, and the output wheel 52 drives the planetary wheel 54 to make a circumferential motion between the transmission gear 56 and the inner gear ring, and drives the transmission gear 56 to rotate during the motion, thereby rotating the transmission shaft 3;

[0051] When the planetary shift mechanism 5 is in the second state, the input shaft 2 drives the output wheel 52 to rotate, and drives the first shift sleeve 53 to rotate, the first shift sleeve 53 drives the inner ring gear to rotate, the inner ring gear drives the planetary gear 54 to rotate, the planetary gear 54 drives the transmission gear 56 to rotate, and the rotating gear drives the transmission shaft 3 to rotate. At this time, the input shaft 2, the output wheel 52, the first shift sleeve 53, the inner gear 55, the planetary gear 54, the transmission gear 56, and the transmission shaft 3 are equivalent to a synchronous shaft.

[0052] Further, as a preferred embodiment, the gear shifting mechanism includes: a second drive cylinder 65, a second drive wheel 66 and a third drive cylinder 67 which are sequentially sleeved on the outside of the transmission shaft 3 along the axial direction of the transmission shaft 3, wherein the second drive cylinder 65 and the third drive cylinder 67 are both rotatably sleeved on the outside of the transmission shaft 3; and also includes: a third shift sleeve 60, a second gear set 68 and a third gear set 69, the third shift sleeve 60 is sleeved on the outside of the second drive cylinder 65, the second drive wheel 66 and the third drive cylinder 67, and the inner wall of the third shift sleeve 60 has a fourth internal spline 601, the outside of the second drive cylinder 65 has a sixth external spline 651, the outside of the second drive wheel 66 has a seventh external spline 661, and the seventh external spline 661 is always meshed and connected with the fourth internal spline 601 The third driving cylinder 67 has an eighth external spline 671 on the outside, and the third shift sleeve 60 is operable to slide axially so that the fourth internal spline 601 is engaged or disengaged with the sixth external spline 651 / eighth external spline 671. The second gear set 68 is transmission-connected between the second driving cylinder 65 and the output shaft 4, and the third gear set 69 is transmission-connected between the third driving cylinder 67 and the output shaft 4, and the transmission ratio of the third gear set 69 is different from that of the second gear set 68. When the gear shift mechanism 6 is in the first state, the fourth internal spline 601 is respectively meshed with the sixth external spline 651 and the seventh external spline 661; when the gear shift mechanism 6 is in the second state, the fourth internal spline 601 is respectively meshed with the seventh external spline 661 and the eighth external spline 671.

[0053] When the gear shift mechanism 6 is in the first state, the transmission shaft 3 drives the second drive cylinder 65 to rotate through the second drive wheel 66 and the third shift sleeve 60, and the second drive cylinder 65 drives the output shaft 4 to rotate through the second gear set 68;

[0054] When the gear shift mechanism 6 is in the second state, the transmission shaft 3 drives the third drive cylinder 67 to rotate through the second drive wheel 66 and the third shift sleeve 60 , and the third drive cylinder 67 drives the output shaft 4 to rotate through the third gear set 69 .

[0055] Furthermore, as a preferred embodiment, the gear shift mechanism 6 also includes a third state that can be switched with the first state and the second state. The transmission ratio between the transmission shaft 3 and the output shaft 4 when the gear shift mechanism 6 is in the third state, the transmission ratio between the transmission shaft 3 and the output shaft 4 when the gear shift mechanism 6 is in the first state, and the transmission ratio between the transmission shaft 3 and the output shaft 4 when the gear shift mechanism 6 is in the second state are all different.

[0056] Further, as a preferred embodiment, the gear shifting mechanism also includes a first driving wheel 62 and a first driving cylinder 63 which are sequentially sleeved on the outside of the transmission shaft 3 along the axial direction of the transmission shaft 3, and the first driving cylinder 63 is rotatably installed on the outside of the transmission shaft 3; it also includes: a second shift sleeve 61 and a first gear set 64, the second shift sleeve is arranged on the outside of the first driving wheel 62 and the first driving cylinder 63, and the inner wall of the second shift sleeve 61 has a third internal spline 611, the first driving wheel 62 has a fourth external spline 621 which is matched and meshed with the third internal spline 611, the first driving cylinder 63 has a fifth external spline 631 which is matched with the third internal spline 611, and the first gear set 64 is provided on the inner wall of the second shift sleeve 61. The three-shift sleeve 60 is operable to slide axially, with the third internal spline 611 meshing or disengaging with the fifth external spline 631, and the first gear set 64 is transmission-connected between the first drive cylinder 63 and the output shaft 4, and the transmission ratio of the first gear set 64, the transmission ratio of the third gear set 69, and the transmission ratio of the second gear set 68 are all different from each other; when the gear shift mechanism is in the first state / second state, the third internal spline 611 is disengaged from the fifth external spline 631, and when the gear shift mechanism is in the third state, the third internal spline 611 is meshed with the fifth external spline 631, and the fourth internal spline 601 is disengaged from the sixth external spline 651 and the eighth external spline 671.

[0057] When the gear shift mechanism 6 is in the third rotation state, the transmission shaft 3 drives the first drive cylinder 63 to rotate through the first drive wheel 62 and the second shift sleeve 61 , and the first drive cylinder 63 drives the output shaft 4 to rotate through the first gear set 64 .

[0058] In this embodiment, the gear shift mechanism 6 also includes a third state that can be switched with the first state and the second state, so that there are three speed ratio adjustments between the transmission shaft 3 and the output shaft 4, further improving the applicability and application flexibility of the equipment.

[0059] Further, as a preferred embodiment, the transmission ratio of the first gear set 64 is greater than one, and the transmission ratios of the second gear set 68 and the third gear set 69 are less than one.

[0060] Specifically, the first gear set 64, the second gear set 68, and the third gear set 69 are all spur gear sets or helical gear sets.

[0061] Furthermore, as a preferred embodiment, the first gear set 64, the second gear set 68, and the third gear set 69 all include a driving gear 641 and a driven gear 642, the driving gear 641 is coaxially connected to the first driving cylinder 63 / the second driving cylinder 65 / the third driving cylinder 67, and the driven gear 642 is sleeved on the outside of the output shaft 4.

[0062] Furthermore, as a preferred embodiment, the transmission gear 56 and the transmission shaft 3, and the output wheel 52 and the input shaft 2 are all integrated structures.

[0063] Furthermore, as a preferred embodiment, the driving gear 641 and the first driving cylinder 63 / the second driving cylinder 65 / the third driving cylinder 67 are an integrated structure.

[0064] Furthermore, as a preferred embodiment, the housing 1 is also provided with a first shift fork mechanism 7, a second shift fork mechanism 8 and a third shift fork mechanism 9. The first shift fork mechanism 7 is transmission-connected to the first shift sleeve 53 for driving the first shift sleeve 53 to slide axially. The second shift fork mechanism 8 is transmission-connected to the second shift sleeve 61 for driving the second shift sleeve 61 to slide axially. The third shift fork mechanism 9 is transmission-connected to the third shift sleeve 60 for driving the third shift sleeve 60 to slide axially.

[0065] The utility model also has the following implementation methods based on the above:

[0066] The first shift fork mechanism 7, the second shift fork mechanism 8 and the third shift fork mechanism 9 all include a shift ring 71, at least one mounting block 72, a rotating shaft 74, at least one connecting rod 73 and a handle 75. The outer parts of the first shift sleeve 53 / the second shift sleeve 61 / the third shift sleeve 60 are all provided with a shift groove. The shift ring 71 is coaxially arranged in the shift groove. The mounting block 72 is rotatably mounted on the outer wall of the shift ring 71. The rotating shaft 74 is rotatably mounted in the housing 1, and the axial direction of the rotating shaft 74 is aligned with the first shift sleeve 53. / The axial direction of the second gear shift sleeve 61 / the third gear shift sleeve 60 is vertical, one end of the connecting rod 73 is connected to the rotating shaft 74, and the other end is axially slidably installed on the mounting block 72, one end of the handle 75 is connected to one end of the rotating shaft 74, and the rotating shaft 74 is driven to rotate by rotating the handle 75, and the connecting rod 73 is caused to rotate around the axial direction of the rotating shaft 74, so as to slide the first gear shift sleeve 53 / the second gear shift sleeve 61 / the third gear shift sleeve 60 along the axial direction through the shift ring 71 under the limit of the shift groove.

[0067] In this embodiment, the axial position of the first shift sleeve 53 / the second shift sleeve 61 / the third shift sleeve 60 can be adjusted by turning the handle 75 of the first fork mechanism 7 / the second fork mechanism 8 / the third fork mechanism 9, thereby realizing the state switching of the planetary shift mechanism 5 / the gear shift mechanism 6 to meet the requirements of different speed ratios of the equipment, and the operation is convenient and quick.

[0068] The above description is only a preferred embodiment of the present invention, and does not limit the implementation mode and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A two-in-one multi-speed adjustment integrated gearbox, characterized in that: include: A housing, on which an input shaft and an output shaft are rotatably mounted, wherein the input shaft and the output shaft are transmission-connected via a shift adjustment structure, and the shift adjustment structure is used to change the transmission ratio between the input shaft and the output shaft; The gear shift adjustment structure is arranged in the box body, and comprises: A transmission shaft, the transmission shaft being rotatably disposed in the housing; a planetary shift mechanism, the planetary shift mechanism being transmission-connected between the input shaft and the transmission shaft, and comprising a first state and a second state that can be switched to each other, wherein the transmission ratio between the output shaft and the transmission shaft when the planetary shift mechanism is in the first state is different from the transmission ratio between the output shaft and the transmission shaft when the planetary shift mechanism is in the second state; A gear shift mechanism, the gear shift mechanism is transmission-connected between the transmission shaft and the output shaft, and includes at least a first state and a second state that can be switched between each other, and the transmission ratio between the transmission shaft and the output shaft when the gear shift mechanism is in the first state and the transmission ratio between the transmission shaft and the output shaft when the gear shift mechanism is in the second state are different from each other.

2. The two-in-one multi-speed adjustment integrated gearbox according to claim 1, characterized in that: The planetary shift mechanism comprises: An output wheel, the output wheel is coaxially connected to the output end of the input shaft, and the outer wall of the output shaft has a first external spline; A bearing sleeve, the bearing sleeve is mounted on the housing and is coaxially sleeved on the outside of the input shaft, and the outside of the bearing sleeve has a second external spline; An internal gear, which is rotatably mounted in the housing and coaxially sleeved on the outside of the transmission shaft, and the outside of the internal gear has a third external spline; A transmission gear, wherein the transmission gear is sleeved on the driving end of the transmission shaft, and a planetary gear is meshedly connected between the transmission gear and the internal gear, and the planetary gear is eccentrically rotated on the output wheel; A first shift sleeve, the first shift sleeve is operable to be axially slidably sleeved on the outside of the output wheel, the bearing sleeve, and the internal gear, and the inner wall of the first shift sleeve has a first internal spline that matches and meshes with the third external spline, and a second internal spline that matches and meshes with the first external spline / the second external spline, and the first shift sleeve slides axially so that the second internal spline is meshed and connected with the first external spline / the second external spline, and when the planetary shift mechanism is in the first state, the second internal spline is meshed and connected with the first external spline, and when the planetary shift mechanism is in the second state, the second internal spline is meshed and connected with the second external spline.

3. The two-in-one multi-speed adjustment integrated gearbox according to claim 2, characterized in that: The gear shift mechanism comprises: a second drive cylinder, a second drive wheel and a third drive cylinder which are sequentially sleeved on the outside of the transmission shaft along the axial direction of the transmission shaft, wherein the second drive cylinder and the third drive cylinder are both rotatably sleeved on the outside of the transmission shaft; Also includes: A third shift sleeve, the third shift sleeve is sleeved on the outside of the second drive cylinder, the second drive wheel and the third drive cylinder, and the inner wall of the third shift sleeve has a fourth internal spline, the outside of the second drive cylinder has a sixth external spline, the outside of the second drive wheel has a seventh external spline, and the seventh external spline is always meshed with the fourth internal spline, the outside of the third drive cylinder has an eighth external spline, and the third shift sleeve is operable to slide axially so that the fourth internal spline is meshed with or disengaged from the sixth external spline / the eighth external spline; a second gear set, the second gear set being transmission-connected between the second driving cylinder and the output shaft; The third gear set is transmission-connected between the third driving cylinder and the output shaft, and the transmission ratio of the third gear set is different from that of the second gear set. When the gear shifting mechanism is in the first state, the fourth internal spline is respectively meshed and connected with the sixth external spline and the seventh external spline. When the gear shifting mechanism is in the second state, the fourth internal spline is respectively meshed and connected with the seventh external spline and the eighth external spline.

4. The two-in-one multi-speed adjustment integrated gearbox according to claim 3, characterized in that: The gear shift mechanism also includes a third state that can be switched with the first state and the second state. The transmission ratio between the transmission shaft and the output shaft when the gear shift mechanism is in the third state, the transmission ratio between the transmission shaft and the output shaft when the gear shift mechanism is in the first state, and the transmission ratio between the transmission shaft and the output shaft when the gear shift mechanism is in the second state are all different.

5. The two-in-one multi-speed adjustment integrated gearbox according to claim 4, characterized in that: The gear shift mechanism further includes a first driving wheel and a first driving cylinder which are sequentially sleeved on the outside of the transmission shaft along the axial direction of the transmission shaft, and the first driving cylinder is rotatably mounted on the outside of the transmission shaft; Also includes: A second shift sleeve, the second shift sleeve is arranged outside the first drive wheel and the first drive cylinder, and the inner wall of the second shift sleeve has a third internal spline, the first drive wheel has a fourth external spline matched with the third internal spline, the first drive cylinder has a fifth external spline matched with the third internal spline, and the third shift sleeve is operable to slide axially so that the third internal spline is engaged or disengaged with the fifth external spline; a first gear set, wherein the first gear set is transmission-connected between the first driving cylinder and the output shaft, and a transmission ratio of the first gear set, a transmission ratio of the third gear set, and a transmission ratio of the second gear set are all different from each other; When the gear shift mechanism is in the first state / second state, the third internal spline is disengaged from the fifth external spline; when the gear shift mechanism is in the third state, the third internal spline is engaged with the fifth external spline, and the fourth internal spline is disengaged from the sixth external spline and the eighth external spline.

6. The two-in-one multi-speed adjustment integrated gearbox according to claim 5, characterized in that: The transmission ratio of the first gear set is greater than one, and the transmission ratios of the second gear set and the third gear set are less than one.

7. The two-in-one multi-speed adjustment integrated gearbox according to claim 5, characterized in that: The first gear set, the second gear set and the third gear set all include a driving gear and a driven gear. The driving gear is coaxially connected with the first driving cylinder / the second driving cylinder / the third driving cylinder, and the driven gear is sleeved on the outside of the output shaft.

8. The two-in-one multi-speed adjustment integrated gearbox according to claim 2, characterized in that: The transmission gear and the transmission shaft, as well as the output wheel and the input shaft are all integrated structures.

9. The two-in-one multi-speed adjustment integrated gearbox according to claim 7, characterized in that: The driving gear and the first driving cylinder / the second driving cylinder / the third driving cylinder are an integrated structure.

10. The two-in-one multi-speed adjustment integrated gearbox according to claim 5, characterized in that: The box body is also provided with a first shift fork mechanism, a second shift fork mechanism and a third shift fork mechanism. The first shift fork mechanism is transmission-connected with the first shift sleeve for driving the first shift sleeve to slide axially. The second shift fork mechanism is transmission-connected with the second shift sleeve for driving the second shift sleeve to slide axially. The third shift fork mechanism is transmission-connected with the third shift sleeve for driving the third shift sleeve to slide axially.

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