CN218171985U - Direct-coupled gearbox assembly for crawler-type agricultural machine - Google Patents

Abstract

The utility model belongs to the technical field of crawler-type agricultural machinery equipment technique and specifically relates to be crawler-type agricultural machinery is with associated mode gearbox assembly, including the power transmission end, include the input shaft gear with power supply output butt joint, the gear on input shaft gear lower extreme and the clutch meshes mutually, and the clutch output is connected with the transmission shaft, and the transmission shaft other end outside is provided with brake assembly, and is connected through separating the claw seat between clutch and the brake assembly looks proximal end, transmission shaft other end fixedly connected with initiative umbrella tooth, the utility model discloses wholly adopt the gear to carry out the transmission, compare in the most gearbox of present internal use, the associated mode's of connection is higher than belt pulley conveying efficiency, has avoided the belt transportation in-process, and the condition that the belt easily worn and skidded, the wholeness can be more stable, and the noise that produces when using is little, effectively avoids causing noise pollution, and the wholeness can be excellent, and the gearbox wholly is 7 fonts, the use in narrow and small space.

Description

Direct-coupled gearbox assembly for crawler-type agricultural machine

Technical Field

The utility model relates to a crawler-type agricultural machinery equipment technical field specifically is crawler-type is associated mode gearbox assembly for agricultural machinery.

Background

The gearbox is a device for changing the rotation speed ratio and the movement direction, is used on automobiles, tractors, ships, machine tools and various machines, and is used for changing the torque, the rotation speed and the movement direction transmitted from a driving shaft to a driven shaft according to different working conditions.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a crawler-type is associated mode gearbox assembly for agricultural machinery to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above purpose, the utility model provides a following technical scheme:

crawler-type is associated mode gearbox assembly for agricultural machinery includes:

the power transmission end comprises an input shaft gear butted with the output end of the power source, the lower end of the input shaft gear is meshed with a gear on the clutch, the output end of the clutch is connected with a transmission shaft, the outer side of the other end of the transmission shaft is provided with a brake assembly, the adjacent ends of the clutch and the brake assembly are connected through a separation claw seat, and the other end of the transmission shaft is fixedly connected with a driving bevel gear;

the reversing and reversing shaft assembly is positioned on one side of the brake assembly and is positioned on the same horizontal plane, and comprises a reversing shaft, two sides of the middle part of the reversing shaft are rotatably connected with driven bevel gears which are meshed with the reversing shaft, the outside of the reversing shaft is fixedly connected with a fast gear and a slow gear, a reversing fork pulling piece is arranged between the driven bevel gears on two sides, and a reversing fork pulling assembly is butted with the reversing fork pulling piece;

the forward and backward shifting fork assembly is positioned on one side of the upper end of the forward and backward shaft assembly and comprises a forward and backward shifting fork shaft, and one end of the forward and backward shifting fork shaft is butted with a hydraulic pushing assembly;

the fast and slow gear assembly is positioned right below the reversing shaft assembly and comprises a fast and slow gear shaft, two ends of the fast and slow gear shaft are matched and slidably connected with gear cylinders, a fast and slow gear driven gear is fixedly connected to the outer part of one gear cylinder, a high and low speed driving gear is connected to the outer part of one gear cylinder, the fast and slow gear driven gear is meshed with the fast gear and the slow gear, the middle parts of the gear cylinders on two sides are butted with a speed-regulating shifting fork assembly, the high and low speed driving gear is driven to move through a high and low gear shifting fork, and different gears are meshed with the high gear and the low gear to realize speed regulation;

the speed regulation shifting fork assembly is positioned right below the reversing shifting fork assembly and comprises a speed regulation shifting fork shaft, and one end of the speed regulation shifting fork shaft is butted with a hydraulic pushing assembly;

the high-low gear assembly is positioned on one side of the lower end of the high-low gear assembly and comprises a high-low gear shaft, the middle part of the outer side surface of the high-low gear shaft is fixedly connected with a fixed driving wheel, one side of the fixed driving gear is provided with a high-speed gear and a low-speed gear, and the high-speed gear and the low-speed gear are engaged with the high-low driving gear in a matching way;

the steering assembly is positioned on one side of the lower end of the high-low gear assembly and comprises a steering shaft, steering brake seats are mounted at two ends of the steering shaft, a first transmission gear is fixedly connected to the middle of the outer end face of the first transmission shaft and meshed with a first fixed transmission wheel, shaft cylinders are arranged outside two ends of the steering shaft in a sliding mode, a second transmission gear is fixedly connected to one side, close to the first transmission gear, of the outer end face of the shaft cylinder, the first fixed transmission wheel is meshed with the first transmission gear and can drive the steering shaft to rotate, the shaft cylinders and the second transmission gear are driven to rotate, and power is transmitted by the fact that the second transmission gear is meshed with the second transmission assembly;

the transmission assembly is positioned on one side of the lower end of the steering assembly and comprises a transmission shaft, two sides of the transmission shaft are both connected with a driving gear and a transmission gear III, and the transmission gear III is meshed with the transmission gear II;

the driving shaft assembly is located on one side of the lower end of the transmission assembly and comprises a driving wheel connecting shaft, two ends of the driving wheel connecting shaft are connected with driving wheels, driving driven gears are fixedly connected to the two sides of the middle of the outer side surface of the driving wheel connecting shaft, the driving driven gears on the two sides are respectively meshed with driving gears on the two sides, a second transmission gear is meshed with a third transmission gear in the transmission assembly to drive the transmission shaft and the driving gears to rotate, and the driving wheels are driven to rotate by meshing of the driving gears and the driving driven gears.

Power transmission end and power supply butt joint, for the whole power that provides of device, the power supply is the engine, power transmission end transmission is connected with the clutch, the clutch output is connected with the transmission shaft, drive the transmission shaft through the clutch output, transmission shaft drive is in the same direction as axle subassembly rotation, and then drive fast-slow gear subassembly, high-low gear subassembly, carry out power transmission through steering assembly and transmission subassembly, final drive axle subassembly is walked, shaft shift fork subassembly is in the same direction as axle subassembly effect to going back and forth, the direction of change power transmission, the gos forward or the back that the control vehicle went, high-low speed is pulled out fork subassembly and is adjusted the gear on the high-low gear subassembly, thereby adjust the speed of vehicle, steering assembly and steering drive subassembly combined action, control vehicle steering.

As the utility model discloses preferred scheme, power transmission end, backward and forward axle subassembly, backward and forward fork assembly, fast slow-speed gear subassembly, speed governing fork assembly, high low-speed gear subassembly, turn to subassembly transmission assembly and drive axle subassembly cooperation combination and outside are provided with the shell, the shell is 7 fonts, shell upper end one side is connected with the side seal board.

As the utility model discloses preferred scheme, the meshing has hydraulic pump spindle nose gear in input shaft gear upper end, and the connecting axle one end at hydraulic pump spindle nose gear middle part and the butt joint of hydraulic pump subassembly output, and hydraulic pump spindle nose gear is connected with the power supply, rotates, through with the clutch meshing, drives the clutch output and rotates, drives the initiative bevel gear and rotates, and brake assembly can control the vehicle and go.

As a preferred proposal of the utility model, the middle part of the outer surface of the reversing shifting fork shaft is provided with an arc-shaped groove, the outer side of the arc-shaped groove is provided with a shifting fork shaft support, the inner wall of the shifting fork shaft support is connected with a shaft body inserted and arranged in the arc-shaped groove, the reversing shifting fork part comprises an inner ring, the outer part of the inner ring is rotationally connected with a reversing shifting fork, the reversing shifting fork is fixedly connected with the shifting fork shaft support, the inner wall of the inner ring is provided with a rack, the middle part of the outer surface of the reversing shaft is provided with a chute, the inner ring is in matched sliding connection with the reversing shaft, the two sides of the inner ring are equidistantly and fixedly connected with clamping teeth, the inner sides of the driven bevel gears at the two sides are equidistantly connected with convex teeth, a clamping groove is formed between the adjacent convex teeth, and one end of the reversing shifting fork shaft is pushed to rotate by a hydraulic pushing assembly, the shifting fork shaft support and the arc-shaped groove are enabled to be displaced, so that the reversing shifting fork is driven to move, different hydraulic pushing assemblies are controlled to return or stroke, the rotating direction of the reversing shifting fork shaft is changed, the moving direction of the shifting fork shaft support is changed, the reversing shifting fork moves to be close to the driven bevel gears close to the fast gear and the slow gear, a clamping groove clamping block is formed between the clamping teeth and the convex teeth on one side of the inner ring inside the reversing shifting fork, the reversing shifting fork and the driven bevel gears are clamped at the moment, the driven bevel gears drive the inner ring inside the reversing shifting fork and the reversing shifting fork shaft to rotate, the fast gear and the slow gear are driven to rotate, reverse operation is carried out when retreating is needed, the reversing shifting fork is meshed with the driven bevel gears on the other side, the inner ring and the reversing shifting fork shaft are enabled to rotate oppositely, and retreating is achieved.

As the utility model discloses preferred scheme, speed governing declutch shift shaft surface both ends all are provided with the arc wall, both ends arc wall outside difference sliding connection has fast and slow shelves to pull out fork and high low-speed gear shift fork, fast and slow shelves are pulled out the gear section of thick bamboo butt joint at fork and fast and slow shelves driven gear middle part, high and low shelves shift fork and the gear section of thick bamboo butt joint at high and low speed driving gear middle part, the speed governing declutch shift shaft is through promoting the subassembly butt joint with hydraulic pressure, drive the high and low shelves shift fork at both ends, fast and slow shelves are pulled out the gear section of thick bamboo that the fork drove both sides and are removed, thereby change the position of fast and slow shelves driven gear and high and low driving gear, thereby realize the regulation to speed and gear.

As the utility model discloses preferred scheme, turn to the drive assembly including turning to the hydro-cylinder, turn to the hydro-cylinder and set up in the inside inclined plane of shell lower extreme, turn to hydro-cylinder both sides output and be connected with through the pivot and turn to the rocking arm, two turn to the one end rotation of rocking arm and be connected with the spliced pole, spliced pole and shell fixed connection, two turn to rocking arm other end side and all be provided with the rocking arm, rocking arm one end middle part rotation is connected with turns to the declutch shift shaft, and turns to declutch shift shaft lower extreme and the crank upper end fixed connection, fixed surface is connected with the cylinder on the rocking arm other end, the cylinder upper end is connected with the ring, through the effect of turning to the cylinder pole on the oil tank, the drive turns to the rocking arm rotation, drive rocking arm and turn to the declutch shift shaft and rotate, thereby make the crank rotate, when the crank rotates, can drive a section of thick bamboo and remove, make the butt joint tooth's socket on the drive gear two and drive gear one this moment, one side drive gear two rotates, the opposite side is in static, thereby the direction when walking turns to.

As the utility model discloses preferred scheme, hydraulic pressure promotes the subassembly and sets up in shell both sides terminal surface, hydraulic pressure promotes the subassembly and includes hydraulic cylinder, and the hydraulic cylinder output is through butt joint spare and speed governing fork assembly and the connecting axle one end in the backward and forward axle fork assembly butt joint mutually.

As the utility model discloses preferred scheme, the butt joint piece includes rotates the connection rocking arm of being connected with the hydraulic cylinder output, connects rocking arm one end and has seted up the gear groove, and the gear inslot cooperation is inserted and is closed and be connected with the gear post, and the gear post docks with the one end of connecting axle among fast gear shifting fork subassembly and the backward and forward axle fork subassembly.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses wholly adopt the gear to carry out the transmission, compare in the gearbox of crawler-type agricultural machinery belt butt joint among the prior art, the connection of associated mode is higher than belt pulley conveying efficiency, has avoided among the belt transportation process, the condition that the belt easily worn and torn and skidded, and the wholeness can be more stable, and the noise that produces when using is little, effectively avoids causing noise pollution, and the wholeness can be excellent, and the gearbox wholly is 7 fonts, the use in adaptable narrow and small space.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

fig. 2 is a first perspective view of the internal structure of the present invention;

FIG. 3 is a second perspective view of the internal structure of the present invention;

fig. 4 is a side view of the internal structure of the present invention shown schematically at a second perspective;

fig. 5 is a bottom view of the internal structure of the present invention;

fig. 6 is a top view of the internal structure of the present invention;

fig. 7 is a schematic view of a steering driving assembly according to the present invention;

FIG. 8 is a schematic view of the connection between the forward and backward shafts and the forward and backward shift fork of the present invention;

fig. 9 is an internal schematic view of the steering driving assembly of the present invention;

fig. 10 is a third schematic view of the internal structure of the present invention.

In the figure: the hydraulic steering gear box comprises a side sealing plate 1, a shell 2, a connecting rocker arm 3, an input shaft gear 4, a hydraulic pump assembly 5, a steering oil cylinder 6, a driving wheel 7, a steering brake seat 8, a hydraulic pump shaft head gear 9, a clutch 10, a brake assembly 11, a steering driving assembly 12, a steering rocker arm 121, a rocker arm 122, a steering declutch shaft 123, a forward and backward declutch shaft 13, a driven bevel gear 14, a fast and slow gear driven gear 15, a high and low gear wheel shaft 16, a driving gear 17, a driving bevel gear 18, a driving wheel connecting shaft 19, a driving driven gear 20, a fast and slow gear declutch 21, a high and low gear declutch 22, a fast and slow gear wheel shaft 23, a declutch shaft support 24, a hydraulic oil cylinder 25, a high and low gear driving gear wheel 26, a forward and backward declutch 27, a latch 28, a convex tooth 29, a chute 30, an arc groove 31, a connecting tooth 32 and a rotating crank 33.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the scope of protection of the present invention.

In order to facilitate understanding of the present invention, reference will now be made to the more complete description of the present invention. Several embodiments of the present invention are presented. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1-10, the present invention provides a technical solution:

in an embodiment, referring to fig. 1-10, a direct-coupled transmission assembly for a tracked agricultural machine includes:

the power transmission end comprises an input shaft gear 4 butted with the output end of the power source, the lower end of the input shaft gear 4 is meshed with a gear on the clutch 10, the output end of the clutch 10 is connected with a transmission shaft, the outer side of the other end of the transmission shaft is provided with a brake component 11, the adjacent ends of the clutch 10 and the brake component 11 are connected through a separation claw seat, and the other end of the transmission shaft is fixedly connected with a driving bevel gear 18;

the reversing and reversing shaft assembly is positioned on one side of the brake assembly 11 and is positioned on the same horizontal plane, and comprises a reversing shaft, two sides of the middle part of the reversing shaft are rotatably connected with driven bevel gears 14 meshed with the bevel gears 18, a fast gear and a slow gear are fixedly connected to the outside of the reversing shaft, a reversing fork pulling piece is arranged between the driven bevel gears 14 on two sides, and the reversing fork pulling piece is in butt joint with a reversing fork pulling assembly;

the backward and forward shifting fork assembly is positioned on one side of the upper end of the backward and forward shaft assembly and comprises a backward and forward shifting fork shaft 13, one end of the backward and forward shifting fork shaft 13 is butted with a hydraulic pushing assembly, and the hydraulic pushing assembly drives the backward and forward shifting fork shaft 13;

the fast and slow gear assembly is positioned right below the reversing shaft assembly and comprises a fast and slow gear shaft, two ends of the fast and slow gear shaft are matched and slidably connected with gear cylinders, a fast and slow gear driven gear 15 is fixedly connected to the outer part of one gear cylinder, a high and low speed driving gear 26 is connected to the outer part of one gear cylinder, the fast and slow gear driven gear 15 is meshed with the fast gear and the slow gear, and the middle parts of the gear cylinders on two sides are butted with a speed-adjusting shifting fork assembly;

the speed regulation shifting fork assembly is positioned right below the forward and backward shifting fork assembly and comprises a speed regulation shifting fork shaft, one end of the speed regulation shifting fork shaft is butted with a hydraulic pushing assembly, and the hydraulic pushing assembly drives the speed regulation shifting fork shaft to regulate the speed;

the high-low gear assembly is positioned on one side of the lower end of the high-low gear assembly and comprises a high-low gear shaft 16, a fixed transmission wheel is fixedly connected to the middle of the outer side face of the high-low gear shaft 16, a high-speed gear and a low-speed gear are arranged on one side of the fixed transmission gear and are engaged with the high-low driving gear 26 in a matching manner, the high-low driving gear 26 is driven by the high-low gear shifting fork 22 to move, and different gears are engaged with the high-speed gear and the low-speed gear to realize speed adjustment;

the steering assembly is positioned on one side of the lower end of the high-low gear assembly and comprises a steering shaft, steering brake seats 8 are installed at two ends of the steering shaft, a first transmission gear is fixedly connected to the middle of the outer end face of the first transmission shaft and meshed with a first fixed transmission wheel, shaft cylinders are arranged outside two ends of the steering shaft in a sliding mode, a second transmission gear is fixedly connected to one side, close to the first transmission gear, of the outer end face of the shaft cylinders, the first fixed transmission wheel is meshed with the first transmission gear and can drive the transmission shaft to rotate, the shaft cylinders and the second transmission gear are driven to rotate, and power is transmitted by the fact that the second transmission gear is meshed with the second transmission assembly;

the transmission assembly is positioned on one side of the lower end of the steering assembly and comprises a transmission shaft, two sides of the transmission shaft are both connected with a driving gear 17 and a transmission gear III, and the transmission gear III is meshed with the transmission gear II;

drive axle subassembly, be located transmission assembly lower extreme one side, including drive wheel connecting axle 19, drive wheel connecting axle 19 both ends are connected with drive wheel 7, the equal fixedly connected with drive driven gear 20 in drive wheel connecting axle 19 lateral surface middle part both sides, the drive driven gear 20 of both sides meshes with the drive driving gear 17 of both sides respectively, drive transmission shaft and drive driving gear 17 rotate, through drive driving gear 17 and the meshing of drive driven gear 20, the realization drives drive wheel connecting axle 19 and drive wheel 7 and rotates.

Drive the transmission shaft through 10 output of clutch, the transmission shaft drive is in the same direction as axle subassembly and is rotated, and then drive fast and slow gear subassembly, high and low gear subassembly, carry out power transmission through steering assembly and transmission subassembly, final drive axle subassembly is walked, the shaft shifting fork subassembly is in the same direction as axle subassembly effect to falling, change power transmission's direction, the advancing or the backspacing that control vehicle traveles, high and low speed shifting fork subassembly is adjusted the gear on the high and low gear subassembly, thereby adjust the speed of vehicle, steering assembly turns to the vehicle and controls.

Referring to fig. 1, power transmission end, backward and forward shaft subassembly, backward and forward fork subassembly, fast and slow gear subassembly, speed governing fork subassembly, high and low gear subassembly, steering unit drive assembly and driving axle subassembly cooperation combination and outside are provided with shell 2, and shell 2 is 7 fonts, and 2 upper end one sides of shell are connected with side shrouding 1, and the gearbox wholly is 7 fonts, the use in adaptable narrow and small space.

Referring to fig. 1, 2, 3 and 8, the upper end of the input shaft gear 4 is engaged with a hydraulic pump shaft head gear 9, and one end of a connecting shaft in the middle of the hydraulic pump shaft head gear 9 is butted with the output end of the hydraulic pump assembly 5.

Referring to fig. 1, 2, 3, 4, 5, 6 and 7, an arc-shaped groove 31 is formed in the middle of the outer surface of the backward and forward shifting fork shaft 13, a shifting fork shaft support 24 is arranged on the outer side of the arc-shaped groove 31, a shaft body inserted and arranged in the arc-shaped groove 31 is connected to the inner wall of the shifting fork shaft support 24, a backward and forward shifting fork 27 is rotatably connected to the outer portion of the inner ring, the backward and forward shifting fork 27 is fixedly connected to the shifting fork shaft support 24, a rack is arranged on the inner wall of the inner ring, a sliding groove 30 is formed in the middle of the outer surface of the backward and forward shaft, the inner ring is in sliding connection with the backward and forward shaft in a matching manner, clamping teeth 28 are fixedly connected to the two sides of the inner ring at equal intervals, convex teeth 29 are connected to the inner sides of the driven umbrella teeth 14 at the two sides, a clamping groove is formed between the adjacent convex teeth 29, the driving umbrella teeth 18 are meshed with the driven umbrella teeth 14 to drive the driven umbrella teeth 14 at the two sides to rotate, one end of the reversing fork shaft is pushed to rotate by the hydraulic pushing component, so that the fork shaft support 24 and the arc-shaped groove 31 are displaced, thereby driving the reversing fork 27 to move, controlling the return stroke or stroke of different hydraulic pushing components, changing the rotating direction of the reversing fork shaft, thereby changing the moving direction of the shifting fork shaft support 24, the backward and forward shifting fork 27 moves to be close to the driven bevel gear 14 close to the fast gear and the slow gear, driving the clamping groove clamping between the clamping teeth 28 and the convex teeth 29 at one side of the inner ring inside, at the moment, the backward and forward shifting fork 27 is clamped with the driven bevel gear 14, the driven bevel gears 14 drive the inner ring inside the reversing fork 27 and the reversing fork shaft 13 to rotate, and then the fast gear and the slow gear are driven to rotate for transmission, and when backing is needed, the reverse operation is the reverse operation, and the reverse shifting fork 27 is meshed with the driven bevel gear 14 on the other side, so that the inner ring and the reverse shifting fork shaft 13 are opposite in rotation direction, and backing is realized.

Referring to fig. 4, 5, 6 and 8, arc grooves are respectively formed at two ends of the outer surface of the speed-adjusting shifting fork shaft, a fast-slow shift fork 21 and a high-slow shift fork 22 are respectively connected to the outer portions of the arc grooves at the two ends in a sliding manner, the fast-slow shift fork 21 is in butt joint with a gear barrel in the middle of the fast-slow shift driven gear 15, the high-slow shift fork 22 is in butt joint with a gear barrel in the middle of the high-low shift driving gear 26, the fast-slow shift fork 21 is in butt joint with a hydraulic pushing assembly, the high-low shift fork 22 at the two ends is driven to drive the gear barrels at two sides to move, the positions of the fast-slow shift driven gear 15 and the high-low shift driving gear 26 are changed, and therefore speed and gear adjustment is achieved.

Referring to fig. 1, 4, 6 and 7, the other side of the outer end surface of the shaft cylinder is provided with a connecting tooth 32, and is in sliding connection with a tooth socket on the inner side of the steering brake seat 8, the middle of the outer end surface of the shaft cylinder is connected with a rotating crank 33, the upper end of the rotating crank 33 is in butt joint with a steering driving component 12, the steering driving component 12 comprises a steering cylinder 6, the steering cylinder 6 is arranged on the inner inclined surface of the lower end of the housing 2, the output ends of the two sides of the steering cylinder 6 are connected with steering rocker arms 121 through rotating shafts, one ends of the two steering rocker arms 121 are connected with connecting columns in a rotating manner, the connecting columns are fixedly connected with the housing 2, the other side surfaces of the two ends of the two steering rocker arms 121 are provided with rocker arms 122, the middle of one end of each rocker arm 122 is connected with a steering shifting shaft 123 in a rotating manner, the lower end of the steering shifting shaft 123 is fixedly connected with the upper end of the rotating crank 33, the upper surface of the other end of each column is connected with a circular ring, the steering rocker arm 121 is driven to rotate by the action of a cylinder rod on the steering oil tank 6, the steering rocker arms 122 and drives the other shifting shaft 123, so that the two transmission gears are in a direction of the two sides of the two transmission gears, and the two transmission gears are in the direction of the two sides of the two transmission gears, and are in the two sides of the two transmission gears, and the two transmission gears.

Please refer to fig. 5 and 6, one end of each of the fast and slow shift fork assembly and the backward and forward shift fork assembly is butted with a hydraulic pushing assembly, the hydraulic pushing assembly comprises a hydraulic oil cylinder 25, the output end of the hydraulic oil cylinder 25 is butted with one end of a connecting shaft in the fast and slow shift fork assembly and the backward and forward shift fork assembly through a butt joint piece, the butt joint piece comprises a connecting rocker arm 3 rotatably connected with the output end of the hydraulic oil cylinder 25, one end of the connecting rocker arm 3 is provided with a gear groove, the gear groove is internally matched and inserted with a gear post, the gear post is butted with one end of the connecting shaft in the fast and slow shift fork assembly and the backward and forward shift fork assembly, the connecting rocker arm 3 is driven to rotate through the action of the hydraulic oil cylinder 25, the connecting shaft in the fast and slow shift fork assembly and the backward and forward shift fork assembly is driven to rotate through the meshing of the gear groove and the gear post, the rotation of the shift fork assembly is realized, and the change of the backward and forward direction is realized.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (9)

1. Crawler-type is associated mode gearbox assembly for agricultural machinery, its characterized in that includes:

the power transmission end comprises an input shaft gear (4) butted with the output end of the power source, the lower end of the input shaft gear (4) is meshed with a gear on the clutch (10), the output end of the clutch (10) is connected with a transmission shaft, a brake component (11) is arranged on the outer side of the other end of the transmission shaft, the adjacent ends of the clutch (10) and the brake component (11) are connected through a separation claw seat, and the other end of the transmission shaft is fixedly connected with a driving bevel gear (18);

the reversing shaft assembly is positioned on one side of the brake assembly (11) and is positioned on the same horizontal plane, and comprises a reversing shaft, the two sides of the middle part of the reversing shaft are rotatably connected with driven bevel gears (14) meshed with the driving bevel gears (18), the outside of the reversing shaft is fixedly connected with a fast gear and a slow gear, a reversing fork pulling piece is arranged between the driven bevel gears (14) on the two sides, and the reversing fork pulling piece is butted with a reversing fork pulling assembly;

the reversing shifting fork assembly is positioned on one side of the upper end of the reversing shaft assembly and comprises a reversing shifting fork shaft (13), and one end of the reversing shifting fork shaft (13) is butted with a hydraulic pushing assembly;

the fast and slow gear assembly is positioned right below the reversing shaft assembly and comprises a fast and slow gear shaft, two ends of the fast and slow gear shaft are matched and slidably connected with gear cylinders, a fast and slow gear driven gear (15) is fixedly connected to the outer part of one gear cylinder, a high and low speed driving gear (26) is connected to the outer part of one gear cylinder, the fast and slow gear driven gear (15) is meshed with the fast gear and the slow gear, and the middle parts of the gear cylinders on two sides are butted with a speed-adjusting shifting fork assembly;

the speed regulation shifting fork assembly is positioned right below the reversing shifting fork assembly and comprises a speed regulation shifting fork shaft, and one end of the speed regulation shifting fork shaft is butted with a hydraulic pushing assembly;

the high-low gear component is positioned on one side of the lower end of the high-low gear component and comprises a high-low gear shaft (16), the middle part of the outer side surface of the high-low gear shaft (16) is fixedly connected with a fixed transmission wheel, one side of the fixed transmission wheel is provided with a high-speed gear and a low-speed gear, and the high-speed gear and the low-speed gear are engaged with the high-low driving gear (26) in a matching way;

the steering assembly is positioned on one side of the lower end of the high-low gear assembly and comprises a steering shaft, steering brake seats (8) are mounted at two ends of the steering shaft, a first transmission gear is fixedly connected to the middle of the outer end face of the first transmission shaft, the first transmission gear is meshed with a fixed transmission wheel, a shaft barrel is arranged outside the two ends of the steering shaft in a sliding mode, and a second transmission gear is fixedly connected to one side, close to the first transmission gear, of the outer end face of the shaft barrel;

the transmission assembly is positioned on one side of the lower end of the steering assembly and comprises a transmission shaft, two sides of the transmission shaft are both connected with a driving gear (17) and a transmission gear III, and the transmission gear III is meshed with the transmission gear II;

the driving shaft assembly is located on one side of the lower end of the transmission assembly and comprises a driving wheel connecting shaft (19), two ends of the driving wheel connecting shaft (19) are connected with driving wheels (7), driving driven gears (20) are fixedly connected to two sides of the middle of the outer side face of the driving wheel connecting shaft (19), and the driving driven gears (20) on two sides are respectively meshed with driving gears (17) on two sides.

2. The direct-coupled gearbox assembly for the crawler-type agricultural machine according to claim 1, wherein: power transmission end, backward and forward axle subassembly, backward and forward fork assembly, fast and slow grade subassembly, speed governing fork assembly, high and low gear subassembly, turn to subassembly transmission assembly and driving axle subassembly cooperation combination and outside and be provided with shell (2), shell (2) are the 7 font, shell (2) upper end one side is connected with side seal board (1).

3. The direct-coupled gearbox assembly for the crawler-type agricultural machine according to claim 1, wherein: the upper end of the input shaft gear (4) is meshed with a hydraulic pump shaft head gear (9), and one end of a connecting shaft in the middle of the hydraulic pump shaft head gear (9) is in butt joint with the output end of the hydraulic pump assembly (5).

4. The direct-coupled gearbox assembly for the crawler-type agricultural machine according to claim 1, wherein: arc wall (31) have been seted up at the same direction as declutch shift shaft (13) surface middle part, arc wall (31) outside is provided with fork axle support (24), and declutch shift shaft support (24) inner wall connection has the axis body of interpolation setting in arc wall (31) inside, the declutch shift spare includes the inner circle in the same direction as the declutch shift piece, and the outside rotation of inner circle is connected with the declutch shift (27) in the same direction as the declutch shift (27) and declutch shift shaft support (24) fixed connection, and the inner circle inner wall is provided with the rack, has seted up spout (30) in the same direction as the surface middle part of the declutch shift, inner circle and the cooperation sliding connection of the declutch shift in the same direction as axle, the impartial interval fixedly connected with latch (28) in both sides of inner side passive bevel gear (14) equidistant connection have dogtooth (29), and is adjacent be formed with the draw-in groove between dogtooth (29).

5. The direct-coupled gearbox assembly for the crawler-type agricultural machine according to claim 1, wherein: the speed regulation declutch shift shaft surface both ends all are provided with the arc wall, and the outside difference sliding connection of both ends arc wall has fast and slow grade shift fork (21) and high and low gear shift fork (22), and fast and slow grade shift fork (21) dock with the gear section of thick bamboo at fast and slow grade driven gear (15) middle part, and high and low gear shift fork (22) dock with the gear section of thick bamboo at high and low speed driving gear (26) middle part.

6. The direct-coupled gearbox assembly for the crawler-type agricultural machine according to claim 1, wherein: the other side of the outer end face of the shaft cylinder is provided with connecting teeth (32) and is in sliding connection with tooth grooves on the inner side face of the steering brake seat (8) in a matched mode, the middle of the outer end face of the shaft cylinder is connected with a rotating crank (33), and the upper end of the rotating crank (33) is in butt joint with a steering driving assembly (12).

7. The direct-coupled gearbox assembly for the crawler-type agricultural machine according to claim 6, wherein: turn to drive assembly (12) including turning to hydro-cylinder (6), turn to hydro-cylinder (6) and set up in the inside inclined plane of shell (2) lower extreme, turn to hydro-cylinder (6) both sides output and be connected with through the pivot and turn to rocking arm (121), two the one end that turns to rocking arm (121) is rotated and is connected with the spliced pole, spliced pole and shell (2) fixed connection, two turn to rocking arm (121) other end side and all be provided with rocking arm (122), rocking arm (122) one end middle part is rotated and is connected with and turns to declutch shift shaft (123), and turns to declutch shift shaft (123) lower extreme and rotating crank (33) upper end fixed connection, and fixed surface is connected with the cylinder on rocking arm (122) the other end, and the cylinder upper end is connected with the ring.

8. The direct-coupled gearbox assembly for the crawler-type agricultural machine according to any one of claims 1 to 7, wherein: the hydraulic pushing assembly is arranged on the end faces of two sides of the shell (2), the hydraulic pushing assembly comprises a hydraulic oil cylinder (25), and the output end of the hydraulic oil cylinder (25) is in butt joint with one end of a connecting shaft in the speed-adjusting shifting fork assembly and the reversing shifting fork assembly through a butt joint piece.

9. The direct-coupled gearbox assembly for the crawler-type agricultural machine according to claim 8, wherein: the butt joint piece comprises a connecting rocker arm (3) rotatably connected with the output end of the hydraulic oil cylinder (25), a gear groove is formed in one end of the connecting rocker arm (3), a gear column is connected in the gear groove in a matched and inserted mode, and the gear column is in butt joint with one end of a connecting shaft in the fast-slow shift shifting fork assembly and the backward-forward shift fork assembly.

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