Crawler operation machine gearbox and crawler operation machine

Abstract

The utility model provides a crawler operation machine gearbox and a crawler operation machine. Comprising a power input gear, a first transmission shaft, a first shaft input gear, a first gear set, a first shaft spline sleeve set, a first shaft meshing sleeve set, a second transmission shaft, a second gear set, a third transmission shaft, a third shaft input gear, a third gear set, a fourth transmission shaft, a fourth gear set, a fifth transmission shaft, a fifth gear set, a reverse driving gear, a reverse shaft and a reverse gear set. The reverse driving gear set is arranged on the second transmission shaft in a sleeving mode, can move in the axial direction of the second transmission shaft and integrally rotates with the second transmission shaft. According to the gearbox of the crawler operation machine, at least two steering modes of forward and reverse steering modes and differential steering modes can be selected, damage to parts of the crawler operation machine is reduced, meanwhile, large bending or small bending can be selected according to the working environment, and the gearbox of the crawler operation machine is better suitable for different steering requirements.

Description

Technical Field

[0001] The utility model relates to the field of agricultural machinery, in particular to a gearbox and a crawler working machine. Background Art

[0002] In the existing field of agricultural machinery, with the continuous improvement of the level of agricultural mechanization in China, the degree of mechanization of agricultural planting has also become higher and higher. Mechanized operations have reduced a large amount of work burden and time cost for farmers. However, problems encountered in the use of agricultural machinery have gradually emerged, so it is necessary to better optimize or improve agricultural machinery products to better match the development of agriculture.

[0003] As a commonly used working agricultural machine in agricultural production, the maneuverability of the crawler working machine is also one of the directions that need to be continuously optimized. For example, the quality of its walking and left and right turning has a great impact on the user experience. The component that determines the walking situation of the crawler machine is the gearbox, and its performance will have a key impact on the maneuverability of the crawler machine. The existing crawler machine gearbox has problems such as only in-situ steering without gear shifting during steering, or in-situ steering gear and differential steering, and it cannot be better applied to various turning situations such as turning large bends and small bends. In addition, there are also various problems such as unsmooth gear shifting during the operation of the crawler machine, and it cannot better meet the requirements of going straight and different turning situations.

[0004] Therefore, it is necessary to provide a gearbox for a crawler working machine and a crawler working machine to overcome the defects existing above. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a gearbox for a crawler working machine and a crawler working machine, which can realize the selection of multi-gear speed change and multi-gear steering modes through the design of the transmission scheme of the gearbox, and at the same time improve the smoothness of speed change and the maneuvering performance of the crawler machine gearbox.

[0006] According to one aspect of the utility model, a gearbox for a crawler working machine is provided, which includes a power input gear, a first transmission shaft, a first shaft input gear, a first gear set, a first shaft spline sleeve set, a first shaft engaging sleeve set, a second transmission shaft, a second gear set, a third transmission shaft, a third shaft input gear, a third gear set, a fourth transmission shaft, a fourth gear set, a fifth transmission shaft, a fifth gear set, a reverse driving gear, a reverse shaft, and a reverse gear set. Through the gear meshing between multiple groups of transmission shafts in this scheme, various steering mode selections such as straight running state, forward and reverse steering states, and differential steering states and the requirements of different gear speeds can be realized.

[0007] The continuously variable transmission drives the power input gear to rotate, and then provides power to the crawler working machine gearbox. The first shaft input gear is constantly meshed with the power input gear. The first shaft input gear is sleeved on the first transmission shaft and rotates integrally with the first transmission shaft. The first gear set is sleeved on the first transmission shaft. The first gear set includes A1 gear, A2 gear and A3 gear arranged in sequence; The first shaft spline sleeve set includes C1 spline sleeve placed between A1 gear and A2 gear, and C2 spline sleeve placed between A2 gear and A3 gear; The first shaft engaging sleeve set includes D1 engaging sleeve placed between A1 gear and A2 gear and sleeved on C1 spline sleeve, and D2 engaging sleeve placed between A2 gear and A3 gear and sleeved on C2 spline sleeve.

[0008] The second gear set is sleeved on the second transmission shaft and rotates integrally with the second transmission shaft. The second gear set includes B1 gear meshed with A1 gear, B2 gear meshed with A2 gear and B3 gear meshed with A3 gear. The second gear set is connected with the first gear set in a cooperative manner to output different rotational speeds to drive the second transmission shaft.

[0009] The third shaft input gear is constantly meshed with B2 gear to drive the third shaft input gear to rotate at different speed ratios. The third shaft input gear is sleeved on the third transmission shaft and rotates integrally with the third transmission shaft; The third gear set is sleeved on the third transmission shaft. The third gear set includes a third shaft left gear set placed on one side of the third shaft input gear, and a third shaft right gear set placed on the opposite side of the third shaft input gear; The third shaft left gear set includes a left clutch gear connected to the third shaft input gear in a jaw coupling manner and a left clutch hub gear connected to the left clutch gear through a left friction plate. The left clutch gear is placed between the third shaft input gear and the left clutch hub gear; The third shaft right gear set includes a right clutch gear connected to the third shaft input gear in a jaw coupling manner and a right clutch hub gear connected to the right clutch gear through a friction plate. The right clutch gear is placed between the third shaft input gear and the right clutch hub gear.

[0010] The fourth gear set is sleeved on the fourth transmission shaft. The fourth gear set includes a fourth shaft left gear set placed on one side of the fourth transmission shaft, and a fourth shaft right gear set placed on the opposite side of the fourth transmission shaft; The fourth shaft left gear set rotates integrally with the fourth transmission shaft and the fourth shaft right gear set is sleeved on the fourth transmission shaft, or the fourth shaft right gear set rotates integrally with the fourth transmission shaft and the fourth shaft left gear set is sleeved on the fourth transmission shaft; The fourth shaft left gear set includes a left intermediate gear and a left reduction gear meshed with the left clutch gear. The fourth shaft right gear set includes a right intermediate gear and a right reduction gear meshed with the right clutch gear.

[0011] The fifth transmission shaft includes a left output shaft and a right output shaft; the fifth gear set includes a left end gear sleeved on the left output shaft and rotatable integrally with the left output shaft, and a right end gear sleeved on the right output shaft and rotatable integrally with the right output shaft.

[0012] The reverse driving gear is sleeved on the second transmission shaft. The reverse driving gear can axially move along the second transmission shaft and rotate integrally with the second transmission shaft. The reverse driving gear includes a left reverse driving gear disposed at one end of the second transmission shaft and a right reverse driving gear disposed at the opposite end of the second transmission shaft; the reverse shaft includes a left reverse shaft and a right reverse shaft; the reverse gear set includes a left reverse gear set sleeved on the left reverse shaft and rotatable integrally with the left reverse shaft, and a right reverse gear set sleeved on the right reverse shaft and rotatable integrally with the right reverse shaft; the left reverse gear set includes a left differential gear and a left reverse driven gear disposed at one end of the left reverse shaft, and the right reverse gear set includes a right differential gear and a right reverse driven gear disposed at one end of the right reverse shaft.

[0013] In this solution, the left reverse driving gear is axially moved along the shaft by a fork to achieve different transmission modes, so as to better realize the selection of forward and reverse steering and differential steering. Through the arrangement of the entire transmission solution, at least two steering modes can be selected, namely the crawler straight running mode, the forward and reverse steering mode with one side rotating forward and the other side rotating backward, and the differential steering mode with one side having a speed greater than the other side. The existing in-situ steering mode can be better improved and better adapted to various steering requirements.

[0014] In this solution, a double-link fork is used to simultaneously move the D1 engaging sleeve and the D2 engaging sleeve, ensuring that the engaging sleeve only engages with one gear in the first gear set or does not engage with the gears in the first gear set (neutral gear), meeting the shifting requirements at different speeds, making the shifting smoother and improving the maneuverability.

[0015] Preferably, the left reverse driving gear meshes with the left reverse driven gear, or the reverse driving gear meshes with the left clutch hub gear; the right reverse driving gear meshes with the right reverse driven gear, or the right reverse driving gear meshes with the right clutch hub gear. On the one hand, through this solution, at least two steering modes can be selected, namely the forward and reverse steering mode with one side of the crawler rotating forward and the other side rotating backward, and the differential steering mode with one side having a speed greater than the other side. The existing in-situ steering mode can be better replaced, the damage to the parts of the crawler machine can be reduced, and problems such as easy deviation during turning due to uneven soil conditions can be improved. At the same time, it is possible to choose to turn a large turn or a small turn according to the working environment, and it is better adapted to different steering requirements.

[0016] Preferably, the left reverse driving gear can be moved by a fork.

[0017] Preferably, the right clutch gear is in a jaw connection with the three-axis input gear, and the structure of the right friction plate is in a separated state; or the structure of the right clutch gear is separated from the three-axis input gear, and the structure of the right friction plate is in a compressed state. Through this solution, it is helpful to realize the selection of the straight-ahead mode or the steering mode, can better replace the existing in-situ steering mode, reduce the damage to the components of the crawler machine, and improve problems such as easy deviation during turning due to uneven soil conditions. Further, through this solution, the selection of the straight-ahead or left-turn mode can be realized.

[0018] Preferably, the left clutch gear is in a jaw connection with the three-axis input gear, and the structure of the left friction plate is in a separated state; or the structure of the left clutch gear is separated from the three-axis input gear, and the structure of the left friction plate is in a compressed state. Through this solution, it is helpful to realize the selection of the straight-ahead mode or the steering mode, can better replace the existing in-situ steering mode, reduce the damage to the components of the crawler machine, and improve problems such as easy deviation during turning due to uneven soil conditions. Further, through this solution, the selection of the straight-ahead or right-turn mode can be realized.

[0019] Preferably, according to one aspect of the present invention, a crawler working machine transmission is provided. In the straight-ahead state, power is transmitted from the power input gear meshing with the first-axis input gear to the first transmission shaft. Any one of the first gear set and the second gear set is selected to transmit power to the second transmission shaft at a certain speed. The friction plate is in a separated state. The B2 gear meshes with the three-axis input gear to transmit power to the third transmission shaft. The left clutch gear is in a jaw connection with the three-axis input gear. The left reduction gear meshes with the left clutch gear to achieve rotation. The left intermediate gear rotates synchronously with the left reduction gear. The left intermediate gear meshes with the left end gear to transmit power to the left output shaft. The right clutch gear is in a jaw connection with the three-axis input gear. The right reduction gear meshes with the right clutch gear to achieve rotation. The right intermediate gear rotates synchronously with the right reduction gear. The right intermediate gear meshes with the right end gear to transmit power to the right output shaft. Through the above solution, the requirements of the straight-ahead mode of the crawler machine can be better realized.

[0020] Preferably, according to one aspect of the present invention, a crawler working machine transmission is provided, including a forward and reverse steering state. When turning right in the forward and reverse steering state, power is transmitted from the power input gear meshing with the first shaft input gear to the first transmission shaft. One of the first gear set and the second gear set is selected to transmit power to the second transmission shaft at a certain speed. The left reverse driving gear meshes with the left reverse driven gear, the left differential gear meshes with the left clutch hub gear, the structure of the left friction plate is in a compressed state, the spline between the left clutch gear and the third shaft input gear is disengaged, and power is transmitted to the left clutch gear through the left friction plate. The left reduction gear meshes with the left clutch gear to achieve rotation, the left intermediate gear rotates synchronously with the left reduction gear, and the left intermediate gear meshes with the left end gear to transmit power to the left output shaft; the B2 gear meshes with the third shaft input gear to transmit power to the third transmission shaft, the right friction plate is in a disengaged state, the right clutch gear is spline-connected to the third shaft input gear, the right reduction gear meshes with the right clutch gear to achieve rotation, the right intermediate gear rotates synchronously with the right reduction gear, and the right intermediate gear meshes with the right end gear to transmit power to the right output shaft. Through the above solution, the requirements of forward and reverse steering of the crawler machine can be better realized, which helps to meet the walking requirements when turning a small bend. Further, it helps to better realize the requirement of turning right.

[0021] Preferably, according to one aspect of the present invention, a crawler working machine transmission is provided. When turning left in the forward and reverse steering state, power is transmitted from the power input gear meshing with the first shaft input gear to the first transmission shaft. One of the first gear set and the second gear set is selected to transmit power to the second transmission shaft at a certain speed. The right reverse driving gear meshes with the right reverse driven gear, the right differential gear meshes with the right clutch hub gear, the structure of the right friction plate is in a compressed state, the spline between the right clutch gear and the third shaft input gear is disengaged, and power is transmitted to the right clutch gear through the right friction plate. The right reduction gear meshes with the right clutch gear to achieve rotation, the right intermediate gear rotates synchronously with the right reduction gear, and the right intermediate gear meshes with the right end gear to transmit power to the right output shaft; the B2 gear meshes with the third shaft input gear to transmit power to the third transmission shaft, the left friction plate is in a disengaged state, the left clutch gear is spline-connected to the third shaft input gear, the left reduction gear meshes with the left clutch gear to achieve rotation, the left intermediate gear rotates synchronously with the left reduction gear, and the left intermediate gear meshes with the left end gear to transmit power to the left output shaft. Further, it helps to better realize the requirement of turning left.

[0022] Preferably, according to one aspect of the present utility model, a crawler working machine gearbox is provided. When turning right in a differential steering state, power is transmitted from the power input gear meshing with the first shaft input gear to the first transmission shaft. Any one of the first gear set and the second gear set is selected to transmit power to the second transmission shaft at a certain speed. The left reverse driving gear meshes with the left clutch hub gear, the structure of the left friction plate is in a compressed state, the spline between the left clutch gear and the third shaft input gear is disengaged, and power is transmitted to the left clutch gear through the left friction plate. The left reduction gear meshes with the left clutch gear to achieve rotation, the left intermediate gear rotates synchronously with the left reduction gear, and the left intermediate gear meshes with the left end gear to transmit power to the left output shaft; the B2 gear meshes with the third shaft input gear to transmit power to the third transmission shaft, the right friction plate is in a disengaged state, the right clutch gear is spline-connected to the third shaft input gear, the right reduction gear meshes with the right clutch gear to achieve rotation, the right intermediate gear rotates synchronously with the right reduction gear, and the right intermediate gear meshes with the right end gear to transmit power to the right output shaft. Through the above solution, the differential steering requirements of the crawler machine can be better realized, which helps to meet the walking requirements when turning a large bend. Further, it helps to better meet the requirement of turning right.

[0023] Preferably, according to one aspect of the present utility model, a crawler working machine gearbox is provided. When turning left in a differential steering state, power is transmitted from the power input gear meshing with the first shaft input gear to the first transmission shaft. Any one of the first gear set and the second gear set is selected to transmit power to the second transmission shaft at a certain speed. The right reverse driving gear meshes with the right clutch hub gear, the structure of the right friction plate is in a compressed state, the spline between the right clutch gear and the third shaft input gear is disengaged, and power is transmitted to the right clutch gear through the right friction plate. The right reduction gear meshes with the right clutch gear to achieve rotation, the right intermediate gear rotates synchronously with the right reduction gear, and the right intermediate gear meshes with the right end gear to transmit power to the right output shaft; the B2 gear meshes with the third shaft input gear to transmit power to the third transmission shaft, the left friction plate is in a disengaged state, the left clutch gear is spline-connected to the third shaft input gear, the left reduction gear meshes with the left clutch gear to achieve rotation, the left intermediate gear rotates synchronously with the left reduction gear, and the left intermediate gear meshes with the left end gear to transmit power to the left output shaft. Through the above solution, the differential steering requirements of the crawler machine can be better realized, which helps to meet the walking requirements when turning a large bend. Further, it helps to better meet the requirement of turning left.

[0024] Preferably, among the A1 gear, A2 gear, and A3 gear, the gear radii satisfy the following: radius of A2 gear > radius of A3 gear > radius of A1 gear. Through this design, the conversion of three traveling gears can be achieved, meeting the shifting requirements at different speeds. Users can select the appropriate gear according to their needs. Moreover, with this design of shifting through a sliding sleeve, quick shifting can be realized, making the shifting method smoother.

[0025] Preferably, in the low-speed gear state, the D1 sliding sleeve meshes with the A1 gear and the C1 spline sleeve, the D2 sliding sleeve meshes with the C2 spline sleeve, the A1 gear meshes with the B1 gear, and the power of the input gear on the first shaft is transmitted to the D1 sliding sleeve through the C1 spline sleeve, then from the D1 sliding sleeve to the A1 gear, and further from the A1 gear to the B1 gear, thereby inputting the power to the second transmission shaft. Through this design, the conversion of three traveling gears can be achieved, meeting the shifting requirements at different speeds. Users can select the appropriate gear according to their needs. Moreover, with this design of shifting through a sliding sleeve, quick shifting can be realized, making the shifting method smoother.

[0026] Preferably, in the high-speed gear state, the D1 sliding sleeve meshes with the C1 spline sleeve and the A2 gear, the D2 sliding sleeve meshes with the C2 spline sleeve, the A2 gear meshes with the B2 gear, and the power of the input gear on the first shaft is transmitted to the D1 sliding sleeve through the C1 spline sleeve, then from the D1 sliding sleeve to the A2 gear, and further from the A2 gear to the B2 gear, thereby inputting the power to the second transmission shaft. Through this design, the conversion of three traveling gears can be achieved, meeting the shifting requirements at different speeds. Users can select the appropriate gear according to their needs. Moreover, with this design of shifting through a sliding sleeve, quick shifting can be realized, making the shifting method smoother.

[0027] Preferably, in the standard gear state, the D1 sliding sleeve meshes with the C1 spline sleeve, the D2 sliding sleeve meshes with the C2 spline sleeve and the A3 gear, the A3 gear meshes with the B3 gear, and the power of the input gear on the first shaft is transmitted to the D2 sliding sleeve through the C1 spline sleeve, then from the D2 sliding sleeve to the A3 gear, and further from the A3 gear to the B3 gear, thereby inputting the power to the second transmission shaft. Through this design, the conversion of three traveling gears can be achieved, meeting the shifting requirements at different speeds. Users can select the appropriate gear according to their needs. Moreover, with this design of shifting through a sliding sleeve, quick shifting can be realized, making the shifting method smoother.

[0028] Preferably, in the neutral gear state, the D1 sliding sleeve 104a meshes with the C1 spline sleeve 105a, and the D2 sliding sleeve 104b meshes with the C2 spline sleeve 105b.

[0029] Preferably, a crawler working machine transmission can enable the selection of three gears: low-speed gear, high-speed gear, and standard gear.

[0030] Preferably, a crawler working machine includes the above-mentioned crawler working machine gearbox.

[0031] A crawler working machine gearbox and a crawler working machine provided by the present utility model, through the arrangement of the entire transmission scheme, realize different transmission modes by moving the left reverse driving gear along the shaft with a shift fork, thereby realizing the selection of two steering modes: the forward and reverse steering mode where one side of the crawler rotates forward and the other side rotates backward, and the differential steering mode where the speed of one side is greater than that of the other side. It can better improve the existing in-situ steering mode and is applicable to the steering requirements of different modes. At the same time, by using a double shift fork to move the D1 engagement sleeve and the D2 engagement sleeve simultaneously, it is ensured that the engagement sleeve only engages with the spline of one gear or does not engage with the spline of the gear (neutral gear), making the gear shift smoother and improving the maneuverability. Brief Description of the Drawings

[0032] The present utility model will be further described in detail below in conjunction with the drawings and specific embodiments:

[0033] Figure 1 It is the transmission principle diagram in the straight-ahead state of this scheme;

[0034] Figure 2 It is the partial transmission principle diagram in the low gear of this scheme;

[0035] Figure 3 It is the transmission principle diagram of the right turn in the forward and reverse steering state of this scheme;

[0036] Figure 4 It is the transmission principle diagram of the left turn in the forward and reverse steering state of this scheme;

[0037] Figure 5 It is the transmission principle diagram of the right turn in the differential steering state of this scheme;

[0038] Figure 6 It is the transmission principle diagram of the left turn in the differential steering state of this scheme;

[0039] Figure 7 It is the partial transmission principle diagram in the high gear of this scheme;

[0040] Figure 8 It is the partial transmission principle diagram in the standard gear of this scheme;

[0041] Figure 9 It is the partial transmission principle diagram in the neutral gear of this scheme;

[0042] Figure 10 It is a schematic diagram of a crawler working machine of this scheme.

[0043] Explanation of the reference numerals in the drawings:

[0044] 10. First drive shaft; 20. Second drive shaft; 30. Third drive shaft; 40. Fourth drive shaft; 50. Fifth drive shaft; 50a. Left output shaft; 50b. Right output shaft; 60. Reverse shaft; 60a. Left reverse shaft; 60b. Right reverse shaft; 120. Power input gear; 110. One-shaft input gear; 101. A1 gear; 102. A2 gear; 103. A3 gear; 104a. D1 engaging sleeve; 104b. D2 engaging sleeve; 105a. C1 spline sleeve; 105b. C2 spline sleeve; B1 gear; 202. B2 gear; 203. B3 gear; 204a. Left reverse driving gear; 204b. Right reverse driving gear; 301. Three-shaft input gear; 302a. Left clutch gear; 302b. Right clutch gear; 303a. Left clutch hub gear; 303b. Right clutch hub gear; 304. Friction plate; 304a. Left friction plate; 304b. Right friction plate; 401a. Left reduction gear; 401b. Right reduction gear; 402a. Left intermediate gear; 402b. Right intermediate gear; 501a. Left end gear; 501b. Right end gear; 601a. Left differential gear; 601b. Right differential gear; 602a. Left reverse driven gear; 602b. Right reverse driven gear; A. First gear set; B. Second gear set; 100. Track operation machine transmission; 200. Track operation machine. Detailed implementation mode

[0045] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0046] To make the drawings concise, only the parts related to the present invention are schematically shown in each drawing, and they do not represent the actual structure of the product. In addition, to make the drawings concise and easy to understand, in some drawings, components with the same structure or function are only schematically shown for one of them, or only one of them is marked. In this article, "one" not only means "only this one", but also means "more than one" situation.

[0047] It should also be further understood that the term "and / or" used in the description of the present application and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0048] In this text, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "linkage" 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 an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in this utility model can be understood according to specific situations.

[0049] In addition, in the description of this application, the terms "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0050] In order to more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation manners of this utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings in the following description are only some embodiments of this utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings, and other implementation manners can also be obtained.

[0051] In the embodiment, the "left side" corresponds to Figures 1 to 7 the direction shown by "L" in Figures 1 to 7 and the "right side" corresponds to the direction shown by "R" in Figures 1 to 7 . It should be noted that the actual working direction is opposite to the left and right directions in the figure, that is, when actually turning right, it corresponds to the "left side" in Figures 1 to 7 , and when actually turning left, it corresponds to the "right side" in the figure

[0052] . In this embodiment, the actual right turn (the left side in the attached drawing) during actual operation is taken as an example for illustration. Figures 1 to 2 As shown in

[0053] this embodiment provides a crawler working machine gearbox, including a power input gear 120, a first transmission shaft 10, a first shaft input gear 110, a first gear set A, a first shaft spline sleeve set (not labeled), a first shaft engaging sleeve set (not labeled), a second transmission shaft 20, a second gear set B, a third transmission shaft 30, a third shaft input gear 301, a third gear set (not labeled), a fourth transmission shaft 40, a fourth gear set (not labeled), a fifth transmission shaft 50, a fifth gear set (not labeled), a reverse driving gear set (not labeled), a reverse shaft 60, and a reverse gear set (not labeled). Through the gear meshing between multiple groups of transmission shafts in this solution, multiple steering mode selections such as straight running state, forward and reverse steering states, and differential steering states, as well as the requirements for different gear speeds, can be achieved.

[0053] The continuously variable transmission drives the power input gear 120 to rotate, thereby providing power to the crawler working machine gearbox. The first shaft input gear 110 is constantly meshed with the power input gear 120. The first shaft input gear 110 is sleeved on the first transmission shaft 10 and rotates integrally with the first transmission shaft 10. The first gear set A is sleeved on the first transmission shaft 10. The first gear set A includes the A1 gear 101, the A2 gear 102, and the A3 gear 103 arranged in sequence. The first shaft spline sleeve set includes the C1 spline sleeve 105a placed between the A1 gear 101 and the A2 gear 102, and the C2 spline sleeve 105b placed between the A2 gear 102 and the A3 gear 103. The first shaft engaging sleeve set includes the D1 engaging sleeve 104a placed between the A1 gear 101 and the A2 gear 102 and sleeved on the C1 spline sleeve 105a, and the D2 engaging sleeve 104b placed between the A2 gear 102 and the A3 gear 103 and sleeved on the C2 spline sleeve 105b.

[0054] The second gear set B is sleeved on the second transmission shaft 20 and rotates integrally with the second transmission shaft 20. The second gear set B includes the B1 gear meshed with the A1 gear 101, the B2 gear 202 meshed with the A2 gear 102, and the B3 gear 203 meshed with the A3 gear 103. The second gear set B is connected in cooperation with the first gear set A to output different speeds to drive the second transmission shaft 20.

[0055] The three - shaft input gear 301 is constantly meshed with the B2 gear 202 to drive the three - shaft input gear 301 to rotate at different speed ratios. The three - shaft input gear 301 is sleeved on the third transmission shaft 30 and rotates integrally with the third transmission shaft 30. The third gear set (not labeled) is sleeved on the third transmission shaft 30. The third gear set (not labeled) includes the three - shaft left - hand gear set placed on one side of the three - shaft input gear 301 and the three - shaft right - hand gear set placed on the opposite side of the three - shaft input gear 301. The three - shaft left - hand gear set (not labeled) includes the left - hand clutch gear 302a connected to the three - shaft input gear 301 in a dog - clutch manner and the left - hand clutch hub gear 303a connected to the left - hand clutch gear 302a through the left - hand friction plate 304a. The left - hand clutch gear 302a is placed between the three - shaft input gear 301 and the left - hand clutch hub gear 303a. The three - shaft right - hand gear set (not labeled) includes the right - hand clutch gear 302b connected to the three - shaft input gear 301 in a dog - clutch manner and the right - hand clutch hub gear 303b connected to the right - hand clutch gear 302b through the right - hand friction plate 304b. The right - hand clutch gear 302b is placed between the three - shaft input gear 301 and the right - hand clutch hub gear 303b.

[0056] The fourth gear set (not labeled) is sleeved on the fourth transmission shaft 40. The fourth gear set includes a left four-shaft gear set (not labeled) disposed on one side of the fourth transmission shaft 40 and a right four-shaft gear set (not labeled) disposed on the opposite side of the fourth transmission shaft 40. The left four-shaft gear set rotates integrally with the fourth transmission shaft 40 and the right four-shaft gear set is sleeved loosely on the fourth transmission shaft 40, or the right four-shaft gear set (not labeled) rotates integrally with the fourth transmission shaft 40 and the left four-shaft gear set is sleeved loosely on the fourth transmission shaft 40. The left four-shaft gear set (not labeled) includes a left intermediate gear 402a and a left reduction gear 401a meshing with the left clutch gear 302a, and the right four-shaft gear set (not labeled) includes a right intermediate gear 402b and a right reduction gear 401b meshing with the right clutch gear 302b.

[0057] The fifth transmission shaft 50 includes a left output shaft 50a and a right output shaft 50b. The fifth gear set (not labeled) includes a left end gear 501a sleeved on the left output shaft 50a and rotating integrally with the left output shaft 50a and a right end gear 501b sleeved on the right output shaft 50b and rotating integrally with the right output shaft 50b.

[0058] The reverse drive gear set (not labeled) is sleeved on the second transmission shaft 20. The reverse drive gear can move axially along the second transmission shaft 20 and rotate integrally with the second transmission shaft 20. The reverse drive gear includes a left reverse drive gear 204a disposed at one end of the second transmission shaft 20 and a right reverse drive gear 204b disposed at the opposite end of the second transmission shaft 20. The reverse shaft 60 includes a left reverse shaft 60a and a right reverse shaft 60b. The reverse gear set (not labeled) includes a left reverse gear set (not labeled) sleeved on the left reverse shaft 60a and rotating integrally with the left reverse shaft 60a and a right reverse gear set (not labeled) sleeved on the right reverse shaft 60b and rotating integrally with the right reverse shaft 60b. The left reverse gear set (not labeled) includes a left differential gear 601a and a left reverse driven gear 602a disposed at one end of the left reverse shaft 60a, and the right reverse gear set (not labeled) includes a right differential gear 601b and a right reverse driven gear 602b disposed at one end of the right reverse shaft 60b.

[0059] Through this solution, on the one hand, it is possible to achieve the selection of forward and reverse steering modes where one side of the crawler moves forward and the other side moves backward, and differential steering modes where the speed of one side is greater than that of the other side, which can better replace the existing in-situ steering mode, reduce damage to the components of the crawler machine, and improve problems such as easy deviation during turning due to uneven soil conditions. At the same time, it is possible to choose whether to turn a large turn or a small turn according to the working environment, which is better applicable to different steering requirements.

[0060] In this solution, a double-link shift fork is used to simultaneously move the D1 engaging sleeve 104a and the D2 engaging sleeve 104b, ensuring that the engaging sleeve engages with only one gear in the first gear set A or does not engage with the gears in the first gear set A (neutral gear), making the gear shifting smoother and improving the maneuverability.

[0061] The right clutch gear 302b is splined to the three-axis input gear 301, and the structure of the right friction plate 304b is in a disengaged state; or the connection structure between the right clutch gear 302b and the three-axis input gear 301 is separated, and the structure of the right friction plate 304b is in a compressed state. This solution helps to realize the selection of the straight-line mode or the steering mode, can better replace the existing in-situ steering mode, reduce the damage to the parts of the crawler machine, improve problems such as easy deviation during turning due to uneven soil conditions, and further, this solution can realize the selection of the straight-line or left-turn mode.

[0062] The left clutch gear 302a is splined to the three-axis input gear 301, and the structure of the left friction plate 304a is in a disengaged state; or the connection structure between the left clutch gear 302a and the three-axis input gear 301 is separated, and the structure of the left friction plate 304a is in a compressed state. This solution helps to realize the selection of the straight-line mode or the steering mode, can better replace the existing in-situ steering mode, reduce the damage to the parts of the crawler machine, improve problems such as easy deviation during turning due to uneven soil conditions, and further, this solution can realize the selection of the straight-line or right-turn mode.

[0063] The left reverse drive gear 204a can be moved by a shift fork.

[0064] The right clutch gear 302b is splined to the three-axis input gear 301, and the structure of the right friction plate 304b is in a disengaged state; or the connection structure between the right clutch gear 302b and the three-axis input gear 301 is separated, and the structure of the right friction plate 304b is in a compressed state.

[0065] Preferably, among the A1 gear 101, the A2 gear 102, and the A3 gear 103, the gear radius sizes satisfy: the radius of the A2 gear 102 > the radius of the A3 gear 103 > the radius of the A1 gear 101. Through this design, the conversion of three traveling gears can be realized, meeting the gear-shifting requirements at different speeds. Users can select the appropriate gear according to their needs, and this solution can achieve fast gear shifting through the engaging sleeve, making the gear-shifting method smoother.

[0066] Preferably, the crawler working machine transmission provided in this embodiment can realize the selection of three gears: low gear, high gear, and standard gear;

[0067] A track working machine gearbox provided by the utility model realizes different transmission modes by arranging the entire transmission scheme and moving the left reverse driving gear 204a along the shaft through a fork, so as to realize the selection of two steering modes: the forward and reverse steering mode with one side of the track rotating forward and the other side rotating backward, and the differential steering mode with the speed of one side greater than that of the other side, which can better improve the existing in-situ steering mode and is applicable to the steering requirements of different modes. At the same time, by adopting a double fork to move the D1 engaging sleeve 104a and the D2 engaging sleeve 104b simultaneously, it is ensured that the engaging sleeve only engages with the spline of one gear or does not engage with the spline of the gear (neutral gear), making the gear shift smoother and improving the operability.

[0068] It should be noted that in this embodiment, the gear shifting mode of the first shaft gear set is realized through the engaging sleeve, and other gear shifting modes can also be adopted for gear shifting.

[0069] See Figure 1 、 Figure 2 、 Figures 5 - 7 As shown, when in the straight running state, the power is transmitted from the power input gear 120 meshing with the first shaft input gear 110 to the first transmission shaft 10. Any one of the first gear set A and the second gear set B is selected to cooperate to transmit the power to the second transmission shaft 20 at a certain speed. The friction plate 304 is in a separated state. The B2 gear 202 meshes with the third shaft input gear 304 to transmit the power to the third transmission shaft 30. The left clutch gear 302a is connected to the third shaft input gear 301 by a jaw coupling. The left reduction gear 401a meshes with the left clutch gear 302a to rotate, thereby driving the left intermediate gear 402a to rotate with the left reduction gear 401a. The left intermediate gear 402a meshes with the left end gear 501a to transmit the power to the left output shaft 50a. The right clutch gear 302b is connected to the third shaft input gear 301 by a jaw coupling. The right clutch gear 302b meshes with the right reduction gear 402b, thereby driving the right intermediate gear 402b to rotate with the right reduction gear 401b. The right intermediate gear 402b meshes with the right end gear 501b to transmit the power to the right output shaft 50b. Through the above scheme, the requirements of the straight running mode of the track machine can be better realized.

[0070] See Figure 2 、 Figure 3 、 Figure 5 and Figure 6As shown, when the crawler machine turns right in the forward and reverse steering states, the power is transmitted from the power input gear 120 to the first drive shaft 10 through meshing with the first shaft input gear 110. If the low gear is selected, the D1 engaging sleeve 104a meshes with the A1 gear 101 and the C1 spline sleeve 105a, the D2 engaging sleeve 104b meshes with the C2 spline sleeve 105b, and the A1 gear 101 meshes with the B1 gear. The power of the first shaft input gear 110 is transmitted to the D1 engaging sleeve 104a through the C1 spline sleeve 105a, and the D1 engaging sleeve 104a transmits the power to the A1 gear 101, and then the power is transmitted to the B1 gear through the A1 gear 101, thereby inputting the power to the second drive shaft 20 (or if the high gear is selected, the D1 engaging sleeve 104a meshes with the C1 spline sleeve 105a and the A2 gear 102, the D2 engaging sleeve 104b meshes with the C2 spline sleeve 105b, and the A2 gear 102 meshes with the B2 gear 202. The power of the first shaft input gear 110 is transmitted to the D1 engaging sleeve 104a through the C1 spline sleeve 105a, and the D1 engaging sleeve 104a transmits the power to the A2 gear 102, and then the power is transmitted to the B2 gear 202 through the A2 gear 102, thereby inputting the power to the second drive shaft 20; or if the standard gear is selected, the D1 engaging sleeve 104a meshes with the C1 spline sleeve 105a, the D2 engaging sleeve 104b meshes with the C2 spline sleeve 105b and the A3 gear 103, and the A3 gear 103 meshes with the B3 gear 203. The power of the first shaft input gear 110 is transmitted to the D2 engaging sleeve 104b through the C1 spline sleeve 105a, and the D2 engaging sleeve 104b transmits the power to the A3 gear 103, and then the power is transmitted to the B3 gear 203 through the A3 gear 103, thereby inputting the power to the second drive shaft 20), the left reverse driving gear 204a meshes with the left reverse driven gear 602a, the left turn left differential gear 601a meshes with the left clutch hub gear 303a, the structure of the left friction plate 304a is in a compressed state, the spline connection between the left clutch gear 302a and the third shaft input gear 301 is disengaged, and the power is transmitted to the left clutch gear 302a through the left friction plate 304a. The left reduction gear 401a meshes with the left clutch gear 302a to achieve rotation, the left intermediate gear 402a rotates synchronously with the left reduction gear 401a, and the left intermediate gear 402a meshes with the left end gear 501a to transmit the power to the left output shaft 50a; the B2 gear 202 meshes with the third shaft input gear 301 to transmit the power to the third drive shaft 30, the right friction plate 304b is in a disengaged state, the right clutch gear 302b is spline-connected to the third shaft input gear 301, the right reduction gear 401b meshes with the right clutch gear 302b to achieve rotation, the right intermediate gear 402b rotates synchronously with the right reduction gear 401b, and the right intermediate gear 402b meshes with the right end gear 501b to transmit the power to the right output shaft 50b.Through the above solutions, the requirements for the forward and reverse steering of the crawler machine can be better achieved, which helps to meet the walking requirements when turning a small bend. Further, it helps to better achieve the requirement for a right turn.

[0071] See Figure 2 , Figure 4 , Figure 7 and Figure 8As shown in the figure, when the crawler machine turns left in the forward and reverse steering states, the power is transmitted from the power input gear 120 to the first drive shaft 10 through meshing with the first shaft input gear 110. If the low gear is selected, the D1 engaging sleeve 104a meshes with the A1 gear 101 and the C1 spline sleeve 105a, the D2 engaging sleeve 104b meshes with the C2 spline sleeve 105b, and the A1 gear 101 meshes with the B1 gear. The power of the first shaft input gear 110 is transmitted to the D1 engaging sleeve 104a through the C1 spline sleeve 105a, the D1 engaging sleeve 104a transmits the power to the A1 gear 101, and then the power is transmitted to the B1 gear through the A1 gear 101, thereby inputting the power to the second drive shaft 20 (or if the high gear is selected, the D1 engaging sleeve 104a meshes with the C1 spline sleeve 105a and the A2 gear 102, the D2 engaging sleeve 104b meshes with the C2 spline sleeve 105b, and the A2 gear 102 meshes with the B2 gear 202. The power of the first shaft input gear 110 is transmitted to the D1 engaging sleeve 104a through the C1 spline sleeve 105a, the D1 engaging sleeve 104a transmits the power to the A2 gear 102, and then the power is transmitted to the B2 gear 202 through the A2 gear 102, thereby inputting the power to the second drive shaft 20; or if the standard gear is selected, the D1 engaging sleeve 104a meshes with the C1 spline sleeve 105a, the D2 engaging sleeve 104b meshes with the C2 spline sleeve 105b and the A3 gear 103, and the A3 gear 103 meshes with the B3 gear 203. The power of the first shaft input gear 110 is transmitted to the D2 engaging sleeve 104b through the C1 spline sleeve 105a, the D2 engaging sleeve 104b transmits the power to the A3 gear 103, and then the power is transmitted to the B3 gear 203 through the A3 gear 103, thereby inputting the power to the second drive shaft 20), the right reverse driving gear 204b meshes with the right reverse driven gear 602b, the right differential gear 601b meshes with the right clutch hub gear 303b, the structure of the right friction plate 304b is in a compressed state, the spline connection between the right clutch gear 302b and the third shaft input gear 301 is disengaged, and the power is transmitted to the right clutch gear 302b through the right friction plate 304b. The right reduction gear 401b meshes with the right clutch gear 302b to achieve rotation, the right intermediate gear 402b rotates synchronously with the right reduction gear 401b, and the right intermediate gear 402b meshes with the right end gear 501b to transmit the power to the right output shaft 50b; the B2 gear 202 meshes with the third shaft input gear 301 to transmit the power to the third drive shaft 30, the left friction plate 304a is in a disengaged state, the left clutch gear 302a is spline-connected to the third shaft input gear 301, the left reduction gear 401a meshes with the left clutch gear 302a to achieve rotation, the left intermediate gear 402a rotates synchronously with the left reduction gear 401, and the left intermediate gear 402a meshes with the left end gear 501a to transmit the power to the left output shaft 50a. Through the above solution, the requirements of the crawler machine for forward and reverse steering can be better realized, which helps to meet the walking requirements when turning a small bend.Furthermore, it helps to better meet the need for a left turn.

[0072] See Figure 2 , Figure 5 , Figure 7 and Figure 8As shown in the figure, when turning right in the differential steering state, the power is transmitted from the power input gear 120 to the first transmission shaft 10 through meshing with the first shaft input gear 110. If the low gear is selected, the D1 engagement sleeve 104a meshes with the A1 gear 101 and the C1 spline sleeve 105a, the D2 engagement sleeve 104b meshes with the C2 spline sleeve 105b, and the A1 gear 101 meshes with the B1 gear. The power of the first shaft input gear 110 is transmitted to the D1 engagement sleeve 104a through the C1 spline sleeve 105a, the D1 engagement sleeve 104a transmits the power to the A1 gear 101, and then the power is transmitted to the B1 gear through the A1 gear 101, thus inputting the power to the second transmission shaft 20 (or if the high gear is selected, the D1 engagement sleeve 104a meshes with the C1 spline sleeve 105a and the A2 gear 102, the D2 engagement sleeve 104b meshes with the C2 spline sleeve 105b, and the A2 gear 102 meshes with the B2 gear 202. The power of the first shaft input gear 110 is transmitted to the D1 engagement sleeve 104a through the C1 spline sleeve 105a, the D1 engagement sleeve 104a transmits the power to the A2 gear 102, and then the power is transmitted to the B2 gear 202 through the A2 gear 102, thus inputting the power to the second transmission shaft 20; or if the standard gear is selected, the D1 engagement sleeve 104a meshes with the C1 spline sleeve 105a, the D2 engagement sleeve 104b meshes with the C2 spline sleeve 105b and the A3 gear 103, and the A3 gear 103 meshes with the B3 gear 203. The power of the first shaft input gear 110 is transmitted to the D2 engagement sleeve 104b through the C1 spline sleeve 105a, the D2 engagement sleeve 104b transmits the power to the A3 gear 103, and then the power is transmitted to the B3 gear 203 through the A3 gear 103, thus inputting the power to the second transmission shaft 20). The left reverse drive gear 204a meshes with the left clutch hub gear 303a, the structure of the left friction plate 304a is in a compressed state, the spline connection between the left clutch gear 302a and the third shaft input gear 301 is disengaged, and the power is transmitted to the left clutch gear 302a through the left friction plate 304a. The left reduction gear 401a meshes with the left clutch gear 302a to achieve rotation, the left intermediate gear 402a rotates synchronously with the left reduction gear 401a, and the left intermediate gear 402a meshes with the left end gear 501a to transmit the power to the left output shaft 50a; the B2 gear 202 meshes with the third shaft input gear 301 to transmit the power to the third transmission shaft 30, the right friction plate 304b is in a disengaged state, the right clutch gear 302b is spline-connected to the third shaft input gear 301, the right reduction gear 401b meshes with the right clutch gear 302b to achieve rotation, the right intermediate gear 402b rotates synchronously with the right reduction gear 401b, and the right intermediate gear 402b meshes with the right end gear 501b to transmit the power to the right output shaft 50b. Through the above solution, the differential steering requirements of the crawler machine can be better achieved, which helps to meet the walking requirements when turning a large bend. Further, it helps to better achieve the right-turning requirements.

[0073] See Figure 2 and Figures 6 - 8As shown in the figure, when making a left turn in the differential steering state, power is transmitted from the power input gear 120 to the first drive shaft 10 through meshing with the first shaft input gear 110. If the low gear is selected, the D1 engagement sleeve 104a meshes with the A1 gear 101 and the C1 spline sleeve 105a, the D2 engagement sleeve 104b meshes with the C2 spline sleeve 105b, and the A1 gear 101 meshes with the B1 gear. The power of the first shaft input gear 110 is transmitted to the D1 engagement sleeve 104a through the C1 spline sleeve 105a, the D1 engagement sleeve 104a transmits the power to the A1 gear 101, and then the power is transmitted to the B1 gear through the A1 gear 101, thereby inputting the power to the second drive shaft 20 (or if the high gear is selected, the D1 engagement sleeve 104a meshes with the C1 spline sleeve 105a and the A2 gear 102, the D2 engagement sleeve 104b meshes with the C2 spline sleeve 105b, and the A2 gear 102 meshes with the B2 gear 202. The power of the first shaft input gear 110 is transmitted to the D1 engagement sleeve 104a through the C1 spline sleeve 105a, the D1 engagement sleeve 104a transmits the power to the A2 gear 102, and then the power is transmitted to the B2 gear 202 through the A2 gear 102, thereby inputting the power to the second drive shaft 20; or if the standard gear is selected, the D1 engagement sleeve 104a meshes with the C1 spline sleeve 105a, the D2 engagement sleeve 104b meshes with the C2 spline sleeve 105b and the A3 gear 103, the A3 gear 103 meshes with the B3 gear 203. The power of the first shaft input gear 110 is transmitted to the D2 engagement sleeve 104b through the C1 spline sleeve 105a, the D2 engagement sleeve 104b transmits the power to the A3 gear 103, and then the power is transmitted to the B3 gear 203 through the A3 gear 103, thereby inputting the power to the second drive shaft 20). The right reverse drive gear 204b meshes with the right clutch hub gear 303b, the structure of the right friction plate 304b is in a compressed state, and the dog clutch between the right clutch gear 302b and the third shaft input gear 301 is disengaged. The power is transmitted to the right clutch gear 302b through the right friction plate 304b. The right reduction gear 401b meshes with the right clutch gear 302b to achieve rotation. The right intermediate gear 402b rotates synchronously with the right reduction gear 401b. The right intermediate gear 402b meshes with the right end gear 501b to transmit the power to the right output shaft 50b; 202 meshes with the third shaft input gear 301 to transmit the power to the third drive shaft 30. The left friction plate 304a is in a disengaged state. The left clutch gear 302a is connected to the third shaft input gear 301 by a dog clutch. The left reduction gear 401a meshes with the left clutch gear 302a to achieve rotation. The left intermediate gear 402a rotates synchronously with the left reduction gear 401a. The left intermediate gear 402a meshes with the left end gear 501a to transmit the power to the left output shaft 50a. Through the above solution, the differential steering requirements of the crawler machine can be better achieved, which helps to meet the walking requirements when turning a large bend. Further, it helps to better achieve the left turn requirements.

[0074] See Figure 9 As shown, when the transmission is in the neutral state (neutral gear), the D1 engagement sleeve 104a engages with the C1 spline sleeve 105a, and the D2 engagement sleeve 104b engages with the C2 spline sleeve 105b. At this time, the transmission does not work.

[0075] See Figure 10 As shown, on the other hand, this embodiment provides a crawler working machine 200, including the above-mentioned crawler working machine transmission.

[0076] It will be apparent to those skilled in the art that various modifications and variations can be made to the above exemplary embodiments of the present invention without departing from the spirit and scope of the present invention. Therefore, it is intended that the present invention cover modifications and variations of the present invention falling within the scope of the appended claims and their equivalent technical solutions.

Claims

1. A crawler working machine transmission, characterized in that Comprising: A power input gear, which is driven to rotate by a continuously variable transmission, and further provides power to the crawler working machine gearbox; A first transmission shaft; A first shaft input gear, which is constantly meshed with the power input gear, and the first shaft input gear is sleeved on the first transmission shaft and rotates integrally with the first transmission shaft; A first gear set, which is sleeved on the first transmission shaft, and the first gear set includes an A1 gear, an A2 gear and an A3 gear arranged in sequence; A first shaft spline sleeve set, which includes a C1 spline sleeve placed between the A1 gear and the A2 gear and rotating with the first transmission shaft, and a C2 spline sleeve placed between the A2 gear and the A3 gear and rotating with the first transmission shaft; A first shaft engaging sleeve set, which includes a D1 engaging sleeve placed between the A1 gear and the A2 gear and sleeved on the C1 spline sleeve and a D2 engaging sleeve placed between the A2 gear and the A3 gear and sleeved on the C2 spline sleeve, and the D1 engaging sleeve and the D2 engaging sleeve can move simultaneously along the axial direction of the first transmission shaft through a double-link shift fork; A second transmission shaft; A second gear set, which is sleeved on the second transmission shaft and rotates integrally with the second transmission shaft, and the second gear set includes a B1 gear meshed with the A1 gear, a B2 gear meshed with the A2 gear and a B3 gear meshed with the A3 gear, and the second gear set is connected in cooperation with the first gear set to output different speeds to drive the second transmission shaft; A third transmission shaft; A third shaft input gear, which is constantly meshed with the B2 gear and is driven to rotate at different speed ratios, and the third shaft input gear is sleeved on the third transmission shaft and rotates integrally with the third transmission shaft; A third gear set, which is sleeved on the third transmission shaft, and the third gear set includes a three-shaft left-side gear set placed on one side of the third shaft input gear and a three-shaft right-side gear set placed on the opposite side of the third shaft input gear; The three-shaft left-side gear set includes a left-side clutch gear connected to the third shaft input gear by a jaw coupling and a left-side clutch hub gear connected to the left-side clutch gear by a left-side friction plate, and the left-side clutch gear is placed between the third shaft input gear and the left-side clutch hub gear; The three-shaft right-side gear set includes a right-side clutch gear connected to the third shaft input gear by a jaw coupling and a right-side clutch hub gear connected to the right-side clutch gear by a right-side friction plate, and the right-side clutch gear is placed between the third shaft input gear and the right-side clutch hub gear; A fourth transmission shaft; A fourth gear set, which is sleeved on the fourth transmission shaft, and the fourth gear set includes a four-shaft left-side gear set placed on one side of the fourth transmission shaft and a four-shaft right-side gear set placed on the opposite side of the fourth transmission shaft; The left gear set of the four-axis rotates integrally with the fourth transmission shaft, and the right gear set of the four-axis is sleeved loosely on the fourth transmission shaft; or, the right gear set of the four-axis rotates integrally with the fourth transmission shaft, and the left gear set of the four-axis is sleeved loosely on the fourth transmission shaft; The left gear set of the four-axis includes an intermediate left gear and a reduction left gear meshing with the left clutch gear, and the right gear set of the four-axis includes an intermediate right gear and a reduction right gear meshing with the right clutch gear; A fifth transmission shaft, which includes a left output shaft and a right output shaft; A fifth gear set, which includes a left end gear sleeved on the left output shaft and rotating integrally with the left output shaft, and a right end gear sleeved on the right output shaft and rotating integrally with the right output shaft; A reverse drive gear set, which is sleeved on the second transmission shaft, can axially move along the second transmission shaft and rotate integrally with the second transmission shaft, and includes a left reverse drive gear placed at one end of the second transmission shaft and a right reverse drive gear placed at the opposite end of the second transmission shaft; A reverse shaft, which includes a left reverse shaft and a right reverse shaft; A reverse gear set, which includes a left reverse gear set sleeved on the left reverse shaft and rotating integrally with the left reverse shaft, and a right reverse gear set sleeved on the right reverse shaft and rotating integrally with the right reverse shaft; The left reverse gear set includes a left differential gear and a left reverse driven gear placed at one end of the left reverse shaft, and the right reverse gear set includes a right differential gear and a right reverse driven gear placed at one end of the right reverse shaft.

2. The crawler working machine transmission according to claim 1, wherein: The left reverse drive gear meshes with the left reverse driven gear, or the reverse drive gear meshes with the left clutch hub gear; the right reverse drive gear meshes with the right reverse driven gear, or the right reverse drive gear meshes with the right clutch hub gear.

3. The track working machine gearbox according to claim 2, characterized in that: The right clutch gear is in a spline connection with the three-axis input gear, and the structure of the right friction plate is in a separated state; or the right clutch gear is separated from the spline connection structure of the three-axis input gear, and the structure of the right friction plate is in a compressed state.

4. A crawler working machine transmission according to claim 2, characterized in that: The left clutch gear is in a spline connection with the three-axis input gear, and the structure of the left friction plate is in a separated state; or the left clutch gear is separated from the spline connection structure of the three-axis input gear, and the structure of the left friction plate is in a compressed state.

5. A crawler working machine transmission according to claim 3 or 4, characterized in that: It includes a straight-ahead state. In the straight-ahead state, power is transmitted through the engagement of the power input gear and the first shaft input gear to the first transmission shaft. Any one of the first gear set and the second gear set is selected to transmit power to the second transmission shaft at a certain speed. The friction plate is in a disengaged state. The B2 gear engages with the third shaft input gear to transmit power to the third transmission shaft. The left clutch gear is connected to the third shaft input gear by a dog clutch. The left reduction gear engages with the left clutch gear to achieve rotation. The left intermediate gear rotates synchronously with the left reduction gear. The left intermediate gear engages with the left end gear to transmit the power to the left output shaft. The right clutch gear is connected to the third shaft input gear by a dog clutch. The right reduction gear engages with the right clutch gear to achieve rotation. The right intermediate gear rotates synchronously with the right reduction gear. The right intermediate gear engages with the right end gear to transmit power to the right output shaft.

6. A crawler working machine transmission according to claim 5, characterized in that: It includes a forward and reverse steering state. When turning right in the forward and reverse steering state, power is transmitted through the engagement of the power input gear and the first shaft input gear to the first transmission shaft. Any one of the first gear set and the second gear set is selected to transmit power to the second transmission shaft at a certain speed. The left reverse driving gear engages with the left reverse driven gear. The left differential gear engages with the left clutch hub gear. The structure of the left friction plate is in a compressed state. The dog clutch between the left clutch gear and the third shaft input gear is disengaged. Power is transmitted to the left clutch gear through the left friction plate. The left reduction gear engages with the left clutch gear to achieve rotation. The left intermediate gear rotates synchronously with the left reduction gear. The left intermediate gear engages with the left end gear to transmit power to the left output shaft; The B2 gear engages with the third shaft input gear to transmit power to the third transmission shaft. The right friction plate is in a disengaged state. The right clutch gear is connected to the third shaft input gear by a dog clutch. The right reduction gear engages with the right clutch gear to achieve rotation. The right intermediate gear rotates synchronously with the right reduction gear. The right intermediate gear engages with the right end gear to transmit power to the right output shaft.

7. A crawler working machine transmission according to claim 5, characterized in that: Including forward and reverse steering states. When turning left in the forward and reverse steering states, power is transmitted from the power input gear meshing with the first shaft input gear to the first transmission shaft. Any one of the first gear set and the second gear set is selected to transmit power to the second transmission shaft at a certain speed. The right reverse driving gear meshes with the right reverse driven gear, the right differential gear meshes with the right clutch hub gear, the structure of the right friction plate is in a compressed state, the spline between the right clutch gear and the third shaft input gear is disengaged, and power is transmitted to the right clutch gear through the right friction plate. The right reduction gear meshes with the right clutch gear to achieve rotation. The right intermediate gear rotates synchronously with the right reduction gear, and the right intermediate gear meshes with the right end gear to transmit power to the right output shaft; The B2 gear meshes with the third shaft input gear to transmit power to the third transmission shaft. The left friction plate is in a disengaged state. The left clutch gear is spline-connected to the third shaft input gear. The left reduction gear meshes with the left clutch gear to achieve rotation. The left intermediate gear rotates synchronously with the left reduction gear, and the left intermediate gear meshes with the left end gear to transmit power to the left output shaft.

8. A crawler working machine transmission according to claim 7, characterized in that: Including differential steering state. When turning right in the differential steering state, power is transmitted from the power input gear meshing with the first shaft input gear to the first transmission shaft. Any one of the first gear set and the second gear set is selected to transmit power to the second transmission shaft at a certain speed. The left reverse driving gear meshes with the left clutch hub gear, the structure of the left friction plate is in a compressed state, the spline between the left clutch gear and the third shaft input gear is disengaged, and power is transmitted to the left clutch gear through the left friction plate. The left reduction gear meshes with the left clutch gear to achieve rotation. The left intermediate gear rotates synchronously with the left reduction gear, and the left intermediate gear meshes with the left end gear to transmit power to the left output shaft; The B2 gear meshes with the third shaft input gear to transmit power to the third transmission shaft. The right friction plate is in a disengaged state. The right clutch gear is spline-connected to the third shaft input gear. The right reduction gear meshes with the right clutch gear to achieve rotation. The right intermediate gear rotates synchronously with the right reduction gear, and the right intermediate gear meshes with the right end gear to transmit power to the right output shaft.

9. The crawler working machine gearbox according to claim 8, characterized in that: Including the differential steering state. When in the left-turn state of the differential steering state, power is transmitted from the power input gear meshing with the first shaft input gear to the first transmission shaft. Any one of the first gear set and the second gear set is selected to transmit power to the second transmission shaft at a certain rotational speed. The right reverse driving gear meshes with the right clutch hub gear. The structure of the right friction plate is in a compressed state. The spline connection between the right clutch gear and the third shaft input gear is disengaged. Power is transmitted to the right clutch gear through the right friction plate. The right reduction gear meshes with the right clutch gear to achieve rotation. The right intermediate gear rotates synchronously with the right reduction gear. The right intermediate gear meshes with the right end gear to transmit power to the right output shaft; The B2 gear meshes with the third shaft input gear to transmit power to the third transmission shaft. The left friction plate is in a disengaged state. The left clutch gear is spline-connected to the third shaft input gear. The left reduction gear meshes with the left clutch gear to achieve rotation. The left intermediate gear rotates synchronously with the left reduction gear. The left intermediate gear meshes with the left end gear to transmit power to the left output shaft.

10. A crawler working machine transmission according to claim 9, characterized in that: Among the A1 gear, the A2 gear, and the A3 gear, the gear radius sizes satisfy: the radius of the A2 gear > the radius of the A3 gear > the radius of the A1 gear.

11. A crawler working machine gearbox according to claim 10, characterized in that: In the low-speed gear state, the D1 engagement sleeve meshes with the A1 gear and the C1 spline sleeve. The D2 engagement sleeve meshes with the C2 spline sleeve. The A1 gear meshes with the B1 gear. The power of the first shaft input gear is transmitted to the D1 engagement sleeve through the C1 spline sleeve, then from the D1 engagement sleeve to the A1 gear, and then from the A1 gear to the B1 gear, thereby inputting power to the second transmission shaft.

12. A crawler working machine transmission according to claim 11, characterized in that: In the high-speed gear state, the D1 engagement sleeve meshes with the C1 spline sleeve and the A2 gear. The D2 engagement sleeve meshes with the C2 spline sleeve. The A2 gear meshes with the B2 gear. The power of the first shaft input gear is transmitted to the D1 engagement sleeve through the C1 spline sleeve, then from the D1 engagement sleeve to the A2 gear, and then from the A2 gear to the B2 gear, thereby inputting power to the second transmission shaft.

13. A crawler working machine gearbox according to claim 12, characterized in that: In the standard gear state, the D1 engagement sleeve meshes with the C1 spline sleeve. The D2 engagement sleeve meshes with the C2 spline sleeve and the A3 gear. The A3 gear meshes with the B3 gear. The power of the first shaft input gear is transmitted to the D2 engagement sleeve through the C1 spline sleeve, then from the D2 engagement sleeve to the A3 gear, and then from the A3 gear to the B3 gear, thereby inputting power to the second transmission shaft.

14. A crawler working machine, characterized in that, Including the crawler working machine gearbox as described in claim 1 or 13.

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