CN218294342U - Multifunctional gear box of loader - Google Patents

Abstract

A multifunctional gear box of a loader is characterized in that a first shaft is provided with a power output fast gear, a power output slow gear and a speed reduction duplex gear by a rolling bearing, and a first shaft output driving gear is fixedly arranged; the rolling bearing for the secondary shaft is provided with a power output triple gear and a duplex transition gear, and a secondary output driving gear is fixedly arranged; the three shaft is fixedly provided with a three shaft input gear, a first gear seat and a second gear seat, and a first gear duplex gear, a first gear, a reverse gear, a second gear and a third gear are assembled by a rolling bearing; the four-shaft rolling bearing is provided with a first-gear duplex transition tooth, a second-gear tooth, a third-gear tooth and a reverse-gear tooth. The front end of the three shafts is sleeved on the same axis by a rolling bearing and a power output shaft to form a speed division structure of the power output and walking power output mechanism. A fixed tooth seat, a shifting fork and a gear engaging tooth sleeve are arranged between the gear engaging gears of the first shaft and the third shaft. The loader gearbox is characterized by having power output capable of adjusting fast and slow rotating speeds, a walking mechanism capable of outputting back and forth and a function of realizing low-speed crawling gear.

Description

Multifunctional gear box of loader

Technical Field

The utility model relates to a self-propelled engineering machine tool, specifically speaking relates to a multi-functional gearbox of loader.

Background

The loader (forklift) is a kind of earth and stone construction machinery widely used in highway, railway, hydroelectric power, building, port, mine and other construction engineering, its gear box only plays the role of driving and walking, and its function is single, and the whole machine function is mainly used for loading and unloading shoveled soil, gravel, lime, coal and others, and for bulldozing, hoisting or other materials such as timber and other loading and unloading operations.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a can export required rotatory moment of torsion of running gear but loader gearbox of exportable rotary power simultaneously.

The utility model discloses realize the reasonable configuration of gearbox through walking power transmission and other mechanical power output, can transmit input power for the front and back axle after reasonable speed governing through the device and realize the locomotive four-wheel drive function, can transmit the machinery of generating set, generator, water pump and other needs rotary power again after passing through reasonable speed governing to power to provide sufficient slow walking speed according to the requirement of operation on limit walking, satisfy the multi-functional gearbox of loader of professional operation requirement.

The utility model discloses a technical scheme is:

a multifunctional gear box of a loader comprises a first shaft, a second shaft, a third shaft, a power output shaft, a fourth shaft, a reverse gear shaft, a gear shifting mechanism and a gear box body, wherein the first shaft is provided with a power output slow gear and a power output fast gear by adopting a rolling bearing; the double-shaft driven gear and the double-shaft driving gear are fixed on the double-shaft spline, and the double-shaft triple gear and the double-shaft double transition gear are assembled on the double shaft by adopting a rolling bearing; a three-shaft first tooth holder, a three-shaft input tooth and a three-shaft second tooth holder are fixed on the three shafts through splines, a first-gear duplex tooth, a three-shaft first gear tooth, a three-shaft reverse gear tooth, a three-shaft three-gear tooth and a three-shaft second gear tooth are assembled on each three shaft through a rolling bearing, a power output shaft is assembled on the end of each three shaft through the rolling bearing, a power output tooth is fixed on each power output shaft, the three-shaft first tooth holder is connected with a three-shaft first gear ring, the three-shaft first gear ring is connected with a three-shaft first shifting fork, the three-shaft first gear ring is shifted by a shifting fork to be respectively connected with the three-shaft first gear tooth and the three-shaft reverse gear tooth, the three-shaft second tooth holder is connected with a three-shaft second shifting fork, and the three-shaft second gear ring is shifted by the three-shaft second shifting fork to be respectively connected with the three-shaft third gear tooth and the three-shaft second gear tooth; the four shafts are fixed with a first gear tooth, a reverse gear tooth, a third gear tooth and a second gear tooth by splines, and are provided with a first-gear double-linkage transition tooth by adopting rolling bearings; the reverse gear shaft adopts a rolling bearing to be assembled with reverse gear teeth; wherein: the traveling power driving tooth is meshed with a two-shaft duplex transition driven tooth, a two-shaft duplex transition driving tooth is meshed with a one-shaft duplex driven tooth, a one-shaft duplex driving tooth is meshed with a two-shaft driven tooth, a power output fast blocking tooth is meshed with a two-shaft duplex fast blocking driven tooth, a power output slow blocking tooth is meshed with a two-shaft duplex slow blocking driven tooth, a two-shaft duplex driving tooth is meshed with a power output tooth, a two-shaft driving tooth is meshed with a three-shaft input tooth, a first blocking duplex driving tooth is meshed with a four-shaft first blocking tooth, a first blocking duplex driven tooth is meshed with a first blocking duplex transition driving tooth, a three-shaft first blocking tooth is meshed with a first blocking duplex transition driven tooth, a three-shaft reverse blocking tooth is meshed with a duplex reverse blocking driven tooth, a duplex reverse blocking driving tooth is meshed with a four-shaft reverse blocking tooth, a three-shaft third blocking tooth is meshed with a four-shaft third blocking tooth, and a two-shaft blocking tooth is meshed with a two-shaft secondary tooth.

Preferably, the power output shaft is positioned on the same side with the power input of one shaft.

Preferably, the walking power driving tooth is positioned at one side of a shaft, the other side of the shaft is a power input end, and the shaft tooth holder is positioned at one side of the power input end; the two-shaft driving tooth is positioned between the two-shaft driven tooth and the two-shaft triple quick-gear driven tooth; the three-shaft reverse gear tooth is positioned at the front end of the three-shaft input tooth, the three-shaft reverse gear tooth abuts against one side of a three-shaft first tooth holder, the other side of the three-shaft first tooth holder abuts against a three-shaft first blocking tooth, the one-gear duplex driving tooth and the one-gear duplex driven tooth are positioned at the front end of the three-shaft first blocking tooth, the three-shaft three-gear tooth is positioned at the rear end of the three-shaft input tooth, the three-shaft three-gear tooth abuts against one side of a three-shaft second tooth holder, the other side of the three-shaft second tooth holder abuts against a three-shaft second blocking tooth, and the power output tooth of the power output end is positioned at the rear end of the three-shaft second tooth; the first-gear duplex transition tooth is positioned between the first-gear tooth of the four shafts and the reverse-gear tooth of the four shafts.

As a preferred scheme, the gear engaging mechanism comprises a connecting rod mechanism, a power output handle and a gear engaging rod, wherein the power output handle is connected with a first shaft shifting fork through the connecting rod mechanism, and the gear engaging rod is respectively connected with a first three-shaft shifting fork and a second three-shaft shifting fork through the connecting rod mechanism.

As a preferred scheme, a concave hole bearing hole position is arranged on the inner circle at the front end of the power output shaft, a boss bearing position is arranged at the rear end of the three shaft, the two shafts are sleeved on the same shaft line by matching of a power output gear needle bearing, and a power output gear is fixed on the power output shaft.

The utility model has the advantages that:

1. the four-wheel drive walking can be realized, the multi-gear speed change is mutually switched, the slow speed requirement of the operation while walking can be met, and the effects of slow gear walking and power output transmission can be realized.

2. The transmission device of the multifunctional loader gearbox overcomes the defect that the existing loader gearbox can only drive to walk singly but can not output rotary power, realizes that the loader can be matched with other machines simultaneously to achieve the multifunctional effect, and has great popularization and application values.

Drawings

Fig. 1 is an external view of the transmission of the present invention.

Fig. 2 is a rear view of the main structural shaft of the present invention.

Fig. 3 is a schematic view of the main structure of the present invention.

Fig. 4 isbase:Sub>A sectional viewbase:Sub>A-base:Sub>A of fig. 3.

Fig. 5 is a power output and walking output transmission route diagram of the present invention.

Fig. 6 is a schematic view of a shift (fork operation) mechanism according to the present invention.

Fig. 7 is a schematic cross-sectional view of an axle.

Fig. 8 is a schematic sectional view of two axes.

Fig. 9 is a schematic cross-sectional view of three axes.

Fig. 10 is a four-axis cross-sectional view.

Fig. 11 is a schematic sectional view of the reverse gear shaft.

The parts of the drawings are detailed as follows: the gear comprises a first shaft 1, a power output slow gear tooth 2, a gear seat 3, a sliding gear sleeve 4, a power output fast gear tooth 5, a first shaft duplex driving tooth 6, a first shaft duplex driven tooth 7, a walking power driving tooth 8, a second shaft 9, a second shaft duplex transition driven tooth 10, a second shaft duplex transition driving tooth 11, a second shaft driven tooth 12, a second shaft driving tooth 13, a second shaft triplex fast gear driven tooth 14, a second shaft triplex slow gear driven tooth 15, a second shaft triplex driving tooth 16, a third shaft 17, a first gear duplex driving tooth 18, a first gear duplex driven tooth 19, a third shaft first gear tooth 20, a third shaft first gear seat 21, a third shaft first gear ring 22, a third shaft reverse gear tooth 23 the transmission comprises three-shaft input teeth 24, three-shaft three-gear teeth 25, three-shaft second gear seats 26, three-shaft second gear rings 27, three-shaft two-gear teeth 28, power output teeth 29, a power output shaft 30, four shafts 31, four shaft one-gear teeth 32, a first gear duplex transition driving tooth 33, a first gear duplex transition driven tooth 34, four shaft reverse gear teeth 35, four shaft three-gear teeth 36, four shaft two-gear teeth 37, reverse gear driving teeth 38, reverse gear driven teeth 39, reverse gear shafts 40, a first shaft shifting fork 41, a three-shaft first shifting fork 42, a three-shaft second shifting fork 43, needle bearings 44, a gear engaging rod 45, a power output handle 46, a connecting rod mechanism 47, an engine 48 and a gearbox box 49.

Detailed Description

The invention will be further elucidated and described with reference to the following embodiments and drawings in which:

in order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Referring to fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5, the present invention includes a first shaft 1, a second shaft 9, a third shaft 17, a power output shaft 30, a fourth shaft 31, a reverse shaft 40, gears on each shaft, a gear engaging mechanism and a gearbox housing 49, wherein the first shaft 1 adopts a rolling bearing to assemble a power output slow-stop gear 2 and a power output fast-stop gear 5, a gear base 3 fixed on the first shaft 1 by a spline is positioned between the power output slow-stop gear 2 and the power output fast-stop gear 5, the gear base 3 is connected with a sliding gear sleeve 4, a first shaft shifting fork 41 is connected with the gear sleeve 4, the gear sleeve 4 is driven by the shifting of the first shaft shifting fork 41 to be engaged with one of the power output slow-stop gear 2 and the power output fast-stop gear 5, so as to realize output of different powers, the first shaft 1 uses the spline to fix a walking power driving gear 8, and adopts a rolling bearing to assemble a shaft duplex gear beside the walking power driving gear 8; the two-shaft 9 is fixed with a two-shaft driven tooth 12 and a two-shaft driving tooth 13 by a spline, and the two-shaft 9 is assembled with a two-shaft triple tooth and a two-shaft duplex transition tooth by adopting a rolling bearing; a three-shaft first tooth holder 21, a three-shaft input tooth 24 and a three-shaft second tooth holder 26 are fixed on the three shaft 17 through splines, a first-gear duplex tooth, a three-shaft first-gear tooth 20, a three-shaft reverse-gear tooth 23, a three-shaft third-gear tooth 25 and a three-shaft second-gear tooth 28 are assembled on the three shaft 17 through a rolling bearing, a power output shaft 30 is assembled on the end of the three shaft 17 through a rolling bearing, a power output tooth 19 is fixed on the power output shaft 30, the three-shaft first tooth holder 21 is connected with a three-shaft first gear ring 22, the three-shaft first gear ring 22 is connected with a three-shaft first shifting fork 42, the three-shaft first gear ring 22 is shifted by the shifting fork 42 to be respectively jointed with the three-shaft first-gear tooth 20 and the three-shaft reverse-gear tooth 23, the three-shaft second tooth holder 26 is connected with a three-shaft second gear ring 27, the three-shaft second gear ring 27 is connected with a three-shaft second shifting fork 43, and the three-shaft second gear ring 27 is shifted by the three-shaft second shifting fork 43 to be respectively jointed with the three-shaft third-gear tooth 25 and second gear tooth 28; the four shaft 31 fixes a four shaft one gear tooth 32, a four shaft reverse gear tooth 35, a four shaft three gear tooth 36 and a four shaft two gear tooth 37 by a spline, and the four shaft 31 is assembled with a one gear double transition tooth by a rolling bearing; the reverse gear shaft 40 adopts a rolling bearing to assemble reverse gear teeth; wherein: the traveling power driving tooth 8 is meshed with a two-shaft duplex transition driven tooth 10, a two-shaft duplex transition driving tooth 11 is meshed with a one-shaft duplex driven tooth 7, a one-shaft duplex driving tooth 6 is meshed with a two-shaft driven tooth 12, a power output fast gear tooth 5 is meshed with a two-shaft duplex fast gear driven tooth 14, a power output slow gear tooth 2 is meshed with a two-shaft duplex slow gear driven tooth 15, a two-shaft duplex driving tooth 16 is meshed with a power output tooth 29, a two-shaft driving tooth 13 is meshed with a three-shaft input tooth 24, a one-gear duplex driving tooth 18 is meshed with a four-shaft one gear tooth 32, a one-gear duplex transition driving tooth 19 is meshed with a one-gear duplex transition driving tooth 33, a three-shaft one gear duplex transition driven tooth 20 is meshed with a one-gear duplex transition driven tooth 34, a three-shaft reverse gear tooth 23 is meshed with a four-shaft duplex reverse gear driven tooth 39, a duplex reverse gear tooth 38 is meshed with a four-shaft reverse gear tooth 35, a four-shaft three-shaft third gear tooth 25 is meshed with a three-shaft reverse gear tooth 36, and a second gear tooth 28 is meshed with a two-shaft reverse gear tooth 37.

The power output shaft 30 is located on the same side as the power input of the shaft 1.

The walking power driving tooth 8 is positioned on one side of a shaft 1, the other side of the shaft is a power input end, and the tooth holder 3 is positioned on one side of the power input end; the two-shaft driving tooth 13 is positioned between the two-shaft driven tooth 12 and the two-shaft triple quick-gear driven tooth 14; the three-shaft reverse gear tooth 23 is positioned at the front end of the three-shaft input tooth 24, the three-shaft reverse gear tooth 23 abuts against one side of a three-shaft first gear seat 21, the other side of the three-shaft first gear seat 21 abuts against a three-shaft first gear tooth 20, the double-linkage-tooth one-gear double-linkage driving tooth 18 and the three-shaft transition large tooth 19 are positioned at the front end of the three-shaft first gear tooth 20, the three-shaft third gear tooth 25 is positioned at the rear end of the three-shaft input tooth 24, the three-shaft third gear tooth 25 abuts against one side of a three-shaft second gear seat 26, the other side of the three-shaft second gear seat 26 abuts against a three-shaft second gear tooth 28, and a power output tooth 29 of the power output end is positioned at the rear end of the three-shaft second gear tooth 28; the duplex-gear one-gear duplex transition gear is positioned between the four-shaft one-gear 32 and the four-shaft reverse gear 35.

The inner circle of the front end of the power output shaft 30 is provided with a concave hole bearing hole position, the rear end of the three shaft 17 is provided with a boss bearing position, the two shafts are sleeved on the same shaft by matching with a needle bearing 44, and the power output shaft 30 is fixed with a power output tooth 29.

Based on the above inventive principle, the specific embodiment of the present invention is as follows:

referring to fig. 1-11, the present embodiment includes a first shaft 1, a second shaft 9, a third shaft 17 and a power output shaft 30 which are coaxial, a front driving power output shaft and a rear driving power output shaft on the fourth shaft 31, a reverse gear shaft 40, gears and fork operating mechanisms (forks, toothholders, sliding gear sleeves, gear rings, a link mechanism 47, a gear engaging rod 45 and a power output handle 46) which are arranged on the shafts, and a gearbox housing 49, wherein the first shaft 1 is provided with power output transmission teeth (which may be double teeth or triple teeth to realize single-speed transmission or variable-speed transmission) and walking power reduction teeth.

The shift fork operating mechanism includes: the first shaft yoke 41, the third shaft yoke 42, the third shaft yoke 43, the link mechanism 47, the shift lever 45 and the power output handle 46 may be disposed on the left or right side of the transmission case 49, and will be described herein as being disposed on the left side of the case as viewed from the front end of the case. Similarly, the reverse gear shaft 40 may be disposed on the left or right side of the housing, and is described herein as being disposed on the right side of the housing as viewed from the front end of the housing.

The shaft 1 is provided with power output transmission teeth, namely: a power take-off slow gear 2 and a power take-off fast gear 5. The power output slow gear tooth 2 arranged on the first shaft 1 is meshed with a power output double-shaft triple gear middle tooth 15 arranged on the second shaft 9, the power output fast gear tooth 5 sleeved on the first shaft 1 is meshed with a triple gear small tooth 14 arranged on the second shaft 9, and a triple gear large tooth 16 arranged on the second shaft 9 is meshed with a power output tooth 29 arranged on a power output shaft 30. The power output slow-stop gear 2 and the power output fast-stop gear 5 on the shaft are respectively assembled on the shaft 1 through a needle bearing 44, a gear seat 3, a sliding gear sleeve 4 and a shaft shifting fork 41 which are fixed through splines are arranged between the shaft 1 and the gear seat 3, when the shaft shifting fork 41 shifts the sliding gear sleeve 4 to be positioned in the middle of the gear seat 3, the sliding gear sleeve 4 and the gear rings of the power output slow-stop gear 2 and the power output fast-stop gear 5 are in a separated or idle running state, when the shaft shifting fork 41 drives the sliding gear sleeve 4 to be meshed and connected with the gear rings of the power output fast-stop gear 5 forwards, similarly, when the shaft shifting fork 41 drives the sliding gear sleeve 4 to be meshed and connected with the gear rings of the power output slow-stop gear 2 backwards, power is connected with the gear seat 3 through the sliding gear sleeve 4 and transmitted to the secondary shaft 9. The sliding gear sleeve 4 is driven by pulling the first shaft shifting fork 41 to realize power engagement and separation, and the second-shaft triple fast gear driven tooth 14, the second-shaft triple slow gear driven tooth 15 and the second-shaft triple driving tooth 16 are fixed into a triple gear which is an integral body and assembled on the second shaft 9 through the needle bearing 44. The power is output in fast and slow gears by the meshing connection of the two-shaft triple driving gear 16 and a power output gear 29 fixedly arranged on a power output shaft 30.

Viewed from the front end, the power input shaft of the first shaft 1 is arranged above the gearbox, the second shaft 9 is arranged below the first shaft 1, the third shaft 17 and the coaxial power output shaft 30 are arranged below the second shaft 9, the reverse gear shaft 40 is arranged at the lower right of the third shaft 17, and the front drive power output shaft of the fourth shaft 31 and the coaxial front drive power output shaft are arranged below the third shaft 17.

From above, power take off's slow gear transmission route does: one shaft 1 → one shaft shifting fork 41 → one shaft gear sleeve 4 is shifted backwards → power output slow gear tooth 2 → two shaft triple slow gear driven tooth 15 → drive two shaft triple driving tooth 16 → power output tooth 29 → power output shaft 30.

The power output fast gear transmission route is as follows: one shaft 1 → one shaft shifting fork 41 → one shaft gear sleeve 4 is shifted forwards → power output fast-gear tooth 5 → two-shaft triple fast-gear driven tooth 14 → drive two-shaft triple driving tooth 16 → power output tooth 29 → power output shaft 30.

The power output mechanism comprises: two power output gear wheels are arranged on one shaft. The two shafts are provided with triple teeth matched with the two power output gear engaging teeth of the first shaft. The front end of the power output shaft is provided with a power output tooth matched with the two-shaft triple gear. The power output mode achieves the effects of increasing and reducing speed through the switching of the big gear and the small gear and the transmission of the multi-gear. The double-linked teeth or the triple teeth are used for transmitting power (namely, the double-linked teeth can transmit power with a single speed ratio, and the triple teeth can transmit power with two speed ratios).

Referring to fig. 3, 4 and 5, a shaft 1 is provided with walking power reduction teeth. The driving tooth 8 is fixedly arranged on one shaft 1, and the one-shaft duplex driving tooth 6 and the one-shaft duplex driven tooth 7 are fixed into a whole duplex gear and are assembled on the one shaft 1 through the needle bearing 44. The two-shaft duplex transition driven teeth 10 and the two-shaft duplex transition driving teeth 11 are fixed into an integral duplex gear and are assembled on the two shafts 9 through needle roller bearings 44. The first-gear duplex driving teeth 18 and the first-gear duplex driven teeth 19 are fixed as an integral duplex gear, and are fitted on the three shafts 17 through three-shaft needle bearings 49. The three-shaft 17 is provided with a gear engaging mechanism, the gear engaging mechanism comprises (a three-shaft first shifting fork 42, a three-shaft first tooth holder 21 and a three-shaft second tooth ring 22), the front end and the rear end of the three-shaft first tooth holder 21 are fixed by a spline, a three-shaft first blocking tooth 20 and a three-shaft reverse blocking tooth 23 are respectively positioned and installed by using a needle bearing 44, the three-shaft first shifting fork 42 is shifted to drive the three-shaft gear ring 22 to realize power engagement and separation, a three-shaft input tooth 24 is fixedly installed on the three shaft 17, the gear engaging mechanism (a three-shaft second shifting fork 43, a three-shaft second tooth holder 26 and a three-shaft second tooth ring) is also arranged on the three shaft 17, the front end and the rear end of the three-shaft second tooth holder 26 are respectively positioned and installed by using the needle bearing 44, and the three-shaft second shifting fork 43 is shifted to drive the three-shaft second tooth ring 27 to realize power engagement and separation. The four shaft 31 is fixedly provided with a four shaft one-gear tooth 32, and a one-gear duplex transition driving tooth 33 and a one-gear duplex transition driven tooth 34 on the four shaft 31 are fixed into a whole duplex gear. The four shaft 31 is also fixedly provided with a four shaft reverse gear 35, a four shaft three gear 36 and a four shaft two gear 37. The reverse shaft 40 is provided with a pair of double-cogged reverse driving teeth 38 and reverse driven teeth 39 and is fitted to the shaft through a needle bearing 44.

Referring to the attached drawings 3 and 4, a walking power driving tooth 8 arranged on a first shaft 1 of an input shaft is meshed with a dual-gear dual-shaft dual-linkage transition driven tooth 10 on a second shaft 9, and a dual-gear dual-shaft dual-linkage transition driving tooth 11 on the first shaft 1 is meshed with a dual-gear one-shaft dual-linkage driven tooth 7 on the second shaft 9 through a dual-gear dual-shaft driving tooth 6. The two-shaft driven gear 12 on the two shaft 9 drives the two-shaft driving gear 13 which is fixedly arranged to rotate, and the two-shaft driving gear 13 is meshed with the three-shaft input gear 24 which is fixedly arranged on the three shaft 17, so that the three shaft 17 is driven to rotate.

A three-axis first shifting fork 42 is arranged between the three-axis first retaining tooth 20 and the three-axis reversing tooth 23 which are positioned and installed by the needle bearing 44 on the three axis 17 respectively to drive the three-axis first tooth holder 21 and the three-axis first gear ring 22 fixed by the spline, when the three-axis first shifting fork 42 is shifted to drive the three-axis first gear ring 22 to be positioned in the middle of the three-axis first tooth holder 21, the three-axis first gear ring 22 is separated from the tooth rings of the three-axis first retaining tooth 20 and the three-axis reversing tooth 23, namely, in an idle running state, when the three-axis first shifting fork 42 is shifted to drive the three-axis first gear ring 22 to move forwards and be meshed with the tooth rings of the three-axis first retaining tooth 20, similarly, when the three-axis first shifting fork 42 drives the three-axis first gear ring 22 to move backwards and be meshed with the tooth rings of the three-axis reversing tooth 23, the walking power is respectively transmitted to the four axis 31 or the reversing shaft 40 by connecting the three-axis first gear ring 22 and driving the three-axis first gear ring 42 to realize power connection and separation. The three-shaft 17 is used for driving the three-shaft first gear ring 22 to move forwards by toggling the three-shaft first shifting fork 42, walking power after three-stage speed reduction from one shaft is connected with the three-shaft first gear ring 22 through the three-shaft first gear ring 20, the three-shaft input gear 24 is used for transmitting the walking power to the three-shaft first gear ring 20, the three-shaft first gear ring 20 and the duplex-gear duplex transition driven gear 34 on the four shaft 31 are used for driving the first-gear duplex transition driving gear 33 to rotate, the first-gear duplex transition driving gear 33 and the duplex-gear first-gear duplex driven gear 19 on the three shaft 17 are used for driving the first-gear duplex driving gear 18 to rotate, the first-gear duplex driving gear 18 is meshed with the first gear 32 fixedly arranged on the four shaft to drive the four shaft 31 to rotate, the first-gear speed reduction function after three-stage speed reduction is realized, and the structure is used for reducing the speed by three-stage speed reduction for multiple times to achieve the first-gear speed reduction function.

The three-shaft 17 is shifted by the three-shaft first shifting fork 42 to drive the three-shaft first gear ring 22 to move backwards, walking power after three-stage speed reduction from one shaft is jointed with the three-shaft reverse gear 23 through the three-shaft first gear ring 22, the three-shaft input gear 24 transmits the walking power to the three-shaft reverse gear 23, the three-shaft reverse gear 23 and a double-gear reverse gear driven gear 39 on a reverse shaft 40 drive a reverse gear driving gear 38 to rotate, the double-gear reverse gear driving gear 38 and the reverse gear driven gear 39 are assembled on the shaft through a needle bearing 44, the reverse gear driving gear 38 is meshed with a four-shaft reverse gear 35 fixedly arranged on the four shaft to drive the four shaft 31 to rotate, and the reverse gear function is realized.

Referring to fig. 3, 4 and 5, a concave hole bearing hole position is arranged on the inner circle at the front end of the power output shaft 30, a boss bearing position is arranged at the rear end of the three shaft 17, and the two shafts are sleeved and connected in series on the same shaft by a needle bearing 44 in a matching way to form a speed division structure of power output rotating speed and action power output transmission speed. The three-shaft 17 is shifted by the three-shaft second shifting fork 43 to drive the three-shaft second gear ring 27 to move forwards, walking power after three-level speed reduction from one shaft is jointed with the three-shaft third gear tooth 25 through the three-shaft second gear ring 27, the three-shaft input gear 24 transmits the walking power to the three-shaft third gear tooth 25, the three-shaft third gear tooth 25 drives the four-shaft third gear tooth 36 on the four shaft 31 to rotate, the four shaft 31 is driven to rotate, and the three-gear speed reduction walking function is realized. The shifting fork is shifted on the three shafts 17 to drive the three-shaft second gear ring 27 to move backwards, the walking power after three-level speed reduction from one shaft is jointed with the two-shaft two-gear tooth 28 through the three-shaft second gear ring 27, the three-shaft input tooth 24 transmits the walking power to the two-shaft two-gear tooth 28, and the two-shaft two-gear tooth 28 is meshed with the two-shaft two-gear tooth 37 on the four shafts 31 to drive the four shafts 31 to rotate, so that the two-gear walking function is realized.

The walking output first-gear transmission route is as follows: one shaft 1 → one shaft yoke 41 → the walking power driving tooth 8 → the two-shaft duplex transition driven tooth 10 → the two-shaft duplex transition driving tooth 11 → one shaft duplex driven tooth 7 → one shaft duplex driving tooth 6 → the two-shaft driven tooth 12 → the two-shaft driving tooth 13 → the three-shaft input tooth 24 → the three-shaft first yoke 42 → the three-shaft first gear ring 22 slides forward → the three-shaft first gear tooth 20 → one-gear duplex transition driven tooth 34 → one-gear duplex transition driving tooth 33 → one-gear duplex driven tooth 19 → one-gear duplex driving tooth 18 → four-shaft one-gear tooth 32 → four-shaft 31;

the second-gear transmission route of walking output is as follows: one shaft 1 → one shaft yoke 41 → the walking power driving tooth 8 → the two-shaft duplex transition driven tooth 10 → the two-shaft duplex transition driving tooth 11 → one shaft duplex driven tooth 7 → one shaft duplex driving tooth 6 → the two-shaft driven tooth 12 → the two-shaft driving tooth 13 → the three-shaft input tooth 24 → the three-shaft second yoke 43 → the three-shaft second ring 27 slides forward → the three-shaft third retaining tooth 25 → the four-shaft third retaining tooth 36 → the four-shaft 31;

the walking output three-gear transmission route is as follows: one shaft 1 → one shaft shift fork 41 → walking power driving tooth 8 → two-shaft duplex transition driven tooth 10 → two-shaft duplex transition driving tooth 11 → one-shaft duplex driven tooth 7 → one-shaft duplex driving tooth 6 → two-shaft driven tooth 12 → two-shaft driving tooth 13 → three-shaft input tooth 24 → three-shaft second shift fork 43 → three-shaft second gear ring 27 slides backwards → three-shaft second gear tooth 28 → four-shaft second gear tooth 37 → four-shaft 31;

the reverse gear transmission route is as follows: one shaft 1 → one shaft shift fork 41 → walking power driving tooth 8 → two shaft duplex transition driven tooth 10 → two shaft duplex transition driving tooth 11 → one shaft duplex driven tooth 7 → one shaft duplex driving tooth 6 → two shaft driven tooth 12 → two shaft driving tooth 13 → three shaft input tooth 24 → three shaft first shift fork 42 → three shaft first gear ring 22 slides backward → three shaft reverse tooth 23 → reverse driven tooth 39 → reverse driving tooth 38 → four shaft reverse tooth 35 → four shaft 31.

The traveling mechanism is provided with a duplex gear and a traveling power driving gear on one shaft, a transition gear and a secondary driving gear on the secondary shaft, a three-shaft input gear, a gear engaging gear seat and a transition gear on the three shaft, and a first-gear duplex transition gear and a four-shaft first-gear tooth which are matched with the first-gear duplex gear on the four shaft. The multi-gear (first gear, second gear and third gear) walking power output mode achieves the effect of speed reduction through the switching transmission of multi-stage large and small gears. The shift (fork operating) mechanism may be located on the left or right side of the gearbox housing, and is described herein as being located on the left side of the housing as viewed from the front of the housing. Similarly, the reverse gear shaft may be disposed on the left or right side of the case, and is described herein by way of example as being disposed on the right side of the case as viewed from the front end of the case.

The device is used for a power vehicle, can realize the power output and multi-gear walking effects at the same time, and achieves the four-wheel drive walking function.

Finally, the above embodiments are only used to illustrate the technical solutions of the present invention, not to limit the protection scope of the present invention, and although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.

Claims (3)

1. The utility model provides a multi-functional gearbox of loader, includes one axle (1), two axle (9), triaxial (17), power output shaft (30), four-axis (31), reverse gear axle (40), gear engaging mechanism and gearbox casing (49), its characterized in that: the gear rack is characterized in that a gear seat (3) fixed by a spline is arranged on the first shaft (1), the front end and the rear end of the gear seat (3) are provided with a power output slow-stop gear (2) and a power output fast-stop gear (5) by adopting a rolling bearing, a sliding gear sleeve (4) is sleeved on the gear seat (3), a first shaft shifting fork (41) is connected with the sliding gear sleeve (4), a first shaft (1) is used for fixing a walking power driving gear (8) by the spline, and a first shaft duplex gear is arranged beside the walking power driving gear (8) by adopting the rolling bearing; the two-shaft (9) is fixed with two-shaft driven teeth (12) and two-shaft driving teeth (13) by a spline, and the two-shaft (9) adopts a rolling bearing to assemble two-shaft triple teeth and two-shaft double transition teeth; the three-shaft double-gear transmission mechanism is characterized in that a three-shaft first gear seat (21), a three-shaft input gear (24) and a three-shaft second gear seat (26) are fixed on the three shaft (17) through splines, a rolling bearing is adopted by the three shaft (17) to be assembled with a first-gear double-gear, a three-shaft first-gear (20), a three-shaft reverse-gear (23), a three-shaft third-gear (25) and a three-shaft second-gear (28), a power output shaft (30) is assembled at the end of the three shaft (17) through the rolling bearing, a power output gear (29) is fixed on the power output shaft (30), a three-shaft first gear ring (22) is sleeved on the three-shaft first gear seat (21), the three-shaft first gear ring (22) is connected with a three-shaft first shifting fork (42), a three-shaft second gear ring (27) is sleeved on the three-shaft second gear seat (26), and the three-shaft second gear ring (27) is connected with a three-shaft second shifting fork (43); the four shafts (31) are fixed with a first gear tooth (32), a reverse gear tooth (35), a third gear tooth (36) and a second gear tooth (37) by splines, and the first gear duplex transition tooth is assembled on the four shafts (31) by adopting rolling bearings; the reverse gear shaft (40) adopts a rolling bearing to assemble reverse gear teeth; wherein: a walking power driving tooth (8) positioned on one shaft is meshed with a two-shaft duplex transition driven tooth (10), a two-shaft duplex transition driving tooth (11) is meshed with a one-shaft duplex driven tooth (7), a one-shaft duplex driving tooth (6) is meshed with a two-shaft driven tooth (12), a power output fast gear tooth (5) is meshed with a two-shaft triplex fast gear driven tooth (14), a power output slow gear tooth (2) is meshed with a two-shaft triplex slow gear driven tooth (15), a two-shaft triplex driving tooth (16) is meshed with a power output tooth (29), and a two-shaft driving tooth (13) is meshed with a three-shaft input tooth (24); a first-gear duplex driving tooth (18) positioned on a three shaft is meshed with a four-shaft first-gear tooth (32), a first-gear duplex driven tooth (19) is meshed with a first-gear duplex transition driving tooth (33), a three-shaft first-gear tooth (20) is meshed with a first-gear duplex transition driven tooth (34), a three-shaft reverse gear tooth (23) is meshed with a duplex reverse gear driven tooth (39), a duplex reverse gear driving tooth (38) is meshed with a four-shaft reverse gear tooth (35), a three-shaft three-gear tooth (25) is meshed with a four-shaft three-gear tooth (36), and a two-shaft gear tooth (28) is meshed with a four-shaft two-gear tooth (37); the shifting of the first shaft shifting fork (41) drives the sliding gear sleeve (4) to be meshed with one of the power output slow gear (2) and the power output fast gear (5), so that the output of different rotating speeds is realized; the shifting fork (42) shifts the three-axis first gear ring (22) to be respectively jointed with the three-axis first gear tooth (20) and the three-axis reverse gear tooth (23), and the three-axis second shifting fork (43) shifts the three-axis second gear ring (27) to be respectively jointed with the three-axis third gear tooth (25) and the three-axis second gear tooth (28).

2. The loader multi-function gearbox of claim 1, wherein: the power output shaft (30) is positioned on the same side of the power input shaft (1).

3. The loader multi-function gearbox of claim 1, wherein: the power output gear is characterized in that a concave hole bearing hole position is formed in the inner circle of the front end of the power output shaft (30), a boss bearing position is formed in the rear end of the three shaft (17), the two shafts are sleeved on the same axis in a matched mode through a power output gear needle bearing (54), and a power output gear (29) is fixed on the power output shaft (30).

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