CN209757304U

CN209757304U - Roller driving structure for tractor

Info

Publication number: CN209757304U
Application number: CN201920260227.8U
Authority: CN
Inventors: 梁木荣; 张坪; 楼卢情
Original assignee: HANGZHOU GANGLI HYDRAULIC MECHANICAL Co Ltd
Current assignee: HANGZHOU GANGLI HYDRAULIC MECHANICAL Co Ltd
Priority date: 2019-03-01
Filing date: 2019-03-01
Publication date: 2019-12-10
Anticipated expiration: 2029-03-01

Abstract

The utility model relates to a gyro wheel drive structure for tractor, which comprises a vehicle rack, be equipped with drive assembly and wheel components on the frame, drive assembly includes the gearbox, driving motor, driving flange and driving sprocket, the driving flange joint is on the gearbox, driving sprocket cup joints on driving flange, wheel components includes the bearing frame, gyro wheel and driven sprocket, the bearing frame both sides are equipped with driving wheel bearing and driving wheel bearing lid, the draw-in groove has been seted up in the driving wheel bearing lid, install the axle cover in the draw-in groove, be equipped with the integral key shaft between the axle cover, the gyro wheel has been cup jointed on the integral key shaft, gyro wheel one side is equipped with driven sprocket, be equipped with the chain between driving sprocket and the driven sprocket. The utility model discloses with drive structure and gyro wheel structural separation, enlarged the installation space of gyro wheel, drive sprocket can be exchanged, changes drive sprocket and can change drive sprocket and driven sprocket's tooth ratio to change the gear ratio of tractor, enlarged the work application scope of the tractor that uses this structure.

Description

Roller driving structure for tractor

Technical Field

The utility model belongs to the tractor field, concretely relates to a roller drive structure for tractor.

Background

the tractor is a common large truck or semi-trailer which is towed by tools between a truck head and a truck bed, namely, the truck head can be separated from the original truck bed to tow other truck beds, and the truck bed can also be separated from the original truck head to be towed by other truck heads. The front of the trailer is provided with a driving capability to call a tractor, and the rear of the trailer is provided with a trailer without the driving capability, and the trailer is dragged away by the tractor. Most of the existing tractors directly drive the rollers through the transmission case by the driving motor, that is, the rollers and the driving assembly form a driving whole, as shown in fig. 5. In the structure, the installation position of the roller is restricted by many factors, such as installation space and use environment. In addition, the gearbox connected with the driving motor is mostly fixed, so that the speed ratio of the whole driving structure is fixed and unchanged, the speed and the bearing capacity of the tractor using the driving structure are limited to a certain extent, and the working application range of the tractor under the structure is reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome exist not enough among the above-mentioned prior art to a gyro wheel drive structure for tractor is provided.

The utility model provides a technical scheme that its technical problem adopted is:

The utility model provides a roller drive structure for tractor, includes the frame that sets up on the tractor, its characterized in that: the frame is provided with a through groove and a mounting groove beside the through groove, a mounting frame fixed on the upper surface of the frame is arranged outside the through groove, the mounting frame is provided with a mounting plate, the mounting plate is provided with a limiting groove matched with the through groove, two sides of the limiting groove are provided with a plurality of fixing holes, adjusting screws are arranged in the fixing holes, and the mounting plate is fixed on the top end of the mounting frame through the adjusting screws; the frame is provided with a driving assembly and a roller assembly, the driving assembly comprises a gearbox penetrating through the through groove, a driving motor fixed at the top end of the gearbox, a driving flange positioned on one side of the gearbox and a driving chain wheel, the body of the driving motor penetrates through the limiting groove, the driving flange is clamped on the gearbox, and the driving chain wheel is sleeved on the driving flange; the roller component comprises a bearing seat, rollers and a driven sprocket, the bearing seat is arranged in the mounting groove, the top end of the bearing seat is fixed with the frame, two sides of the bearing seat are provided with symmetrical shaft holes, a driving wheel bearing is arranged in the shaft holes, a driving wheel bearing cover is fixed on the outer side of each shaft hole, a clamping groove is formed in the driving wheel bearing cover, and a shaft cover is arranged in the clamping groove; a spline shaft penetrating through a bearing of the driving wheel is arranged between the shaft covers, the spline shaft and the shaft covers are fixed through screws, a roller is sleeved on the spline shaft, a driven chain wheel is arranged on one side of the roller, and the driven chain wheel is sleeved on the spline shaft; a chain is arranged between the driving component and the roller component and is connected with the driving chain wheel and the driven chain wheel in a meshing way.

Furthermore, the fixing hole is a long groove fixing hole. The adjusting screw is unscrewed to adjust the transverse position of the mounting plate, so that the mounting plate is subjected to fine position adjustment along the straight line of the long groove fixing hole, the central distance between the driving chain wheel and the driven chain wheel is adjusted, and the chain is kept tight.

Furthermore, a spring washer is arranged between the driving flange and the driving chain wheel and is fixed with the driving flange through a bolt. Two sides of the spring washer are respectively abutted against the driving flange and the driving chain wheel, so that the buffering effect can be achieved, and meanwhile, the driving chain wheel is prevented from being abraded due to collision.

Furthermore, a spacer bush with matched length is arranged between the shaft cover and the bearing at one side far away from the driven chain wheel; a spacer bush with the length matched with that of the roller is arranged between the bearing at one side far away from the driven chain wheel and the roller; a spacer bush with the length matched with that of the roller is arranged between the roller and the driven chain wheel; a spacer bush with the length matched with that of the bearing is arranged between the driven chain wheel and the bearing close to one side of the driven chain wheel; the spacer bushes are sleeved on the spline shaft. The adjacent parts in the whole bearing seat are abutted by the arranged spacer bush, so that the generation of gaps is prevented, and the conditions of vibration, shake and the like of the roller assembly due to the gaps in the rotating process are prevented.

Furthermore, a mounting flange is arranged below the mounting plate and is sleeved on the gearbox, and two sides of the mounting flange are abutted to the inner side of the mounting frame. The mounting flange can enable the mounting plate to keep linear movement between the mounting frames, and the mounting plate can be conveniently adjusted.

Compared with the prior art, the utility model, have following advantage and effect: the structure is scientific, the driving structure is separated from the roller structure, so that the installation space of the roller is enlarged, and the design and installation of the roller structure are facilitated; the driving structure and the roller structure are driven by the chain, and the chain can be adjusted by the mounting plate structure to keep the chain tight, so that the driving effect is ensured; the driving chain wheel is detachable and replaceable, and the gear ratio of the driving chain wheel and the driven chain wheel is changed by adjusting and replacing the driving chain wheel, so that the gear ratio of the tractor is changed, and the working application range of the tractor using the structure is expanded.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a partial sectional view of the embodiment.

Fig. 3 is a schematic diagram of an exploded structure of the embodiment.

FIG. 4 is a sectional view of the scroll wheel assembly in the embodiment.

Fig. 5 is a prior art schematic.

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.

Examples are given.

As shown in fig. 1 to 2, the present embodiment includes a vehicle frame 1 provided on a tractor, and the vehicle frame 1 serves as a driving means for fixedly providing the rollers 32 and driving the rollers 32. A round through groove 11 is formed in the frame 1, and an installation groove 12 located at the lower portion of the frame 1 is arranged beside the through groove 11. And the through grooves 11 are externally provided with symmetrical mounting frames 13 which are vertically fixed on the upper surface of the frame 1, and the upper surface of each mounting frame 13 is provided with a plurality of screw holes for fixing. The mounting bracket 13 top is equipped with mounting panel 14, and it has the circular spacing groove 17 with leading to groove 11 position matching to open on the mounting panel 14, and spacing groove 17 both sides are opened has the fixed orifices 15 that correspond with the screw that opens on the mounting bracket 13. An adjusting screw 16 is arranged in each fixing hole 15, and the mounting plate 14 is fixed at the top end of the mounting frame 13 through the adjusting screw 16.

As shown in fig. 3, the frame 1 is provided with a driving assembly 2 and a roller assembly 3. The drive assembly 2 comprises a gearbox 21, a drive motor 22, a drive flange 23 and a drive sprocket 24. The gearbox 21 box body passes through logical groove 11, and driving motor 22 is fixed at the top of gearbox 21 and driving motor 22 fuselage passes spacing groove 17, and driving motor 22 is connected with gearbox 21. The driving flange 23 is fixed on one side of the gearbox 21 through a bolt, the driving chain wheel 24 is sleeved on the driving flange 23, and specifically, the driving motor 22 drives the driving flange 23 after being adjusted by the gearbox 21, so that the driving chain wheel 24 is driven to rotate. Further, a spring washer 25 is provided between the drive flange 23 and the drive sprocket 24, and the spring washer 25 is fixed to the drive flange 23 by bolts. Two sides of the spring washer 25 are respectively abutted against the driving flange 23 and the driving chain wheel 24, so that the buffering effect is achieved, and meanwhile, the driving chain wheel 24 can be prevented from being abraded due to collision friction when rotating.

as shown in fig. 4, the roller assembly 3 includes a bearing seat 31, a roller 32 and a driven sprocket 33, the bearing seat 31 is disposed in the mounting groove 12, the top end of the bearing seat 31 is fixed to the frame 1 by a screw, and a space for mounting the roller 32 is provided in the bearing seat 31. Two sides of the bearing seat 31 are provided with symmetrical shaft holes 34, each shaft hole 34 is internally provided with a driving wheel bearing 35, the outer side of the shaft hole 34 is fixed with a driving wheel bearing cover 36, and the inner side of the driving wheel bearing cover 36 is connected with the driving wheel bearing 35. A clamping groove 39 is formed in the driving wheel bearing cover 36, and a shaft cover 37 is installed in the clamping groove 39. A spline shaft 30 passing through the driving wheel bearing 35 is provided between the shaft caps 37, and both ends of the spline shaft 30 are fixed to the outer shaft caps 37 by screws. The spline shaft 30 is sleeved with a roller 32, one side of the roller 32 is provided with a driven chain wheel 33, and the driven chain wheel 33 is sleeved on the spline shaft 30. In addition, a spacer 5 with matched length is arranged between the shaft cover 37 and the bearing on the side far away from the driven sprocket 33, a spacer 5 with matched length is arranged between the bearing on the side far away from the driven sprocket 33 and the roller 32, a spacer 5 with matched length is arranged between the roller 32 and the driven sprocket 33, a spacer 5 with matched length is arranged between the driven sprocket 33 and the bearing on the side close to the driven sprocket 33, and each spacer 5 is sleeved on the spline shaft 30 and abuts against the two ends. The spacer bush 5 is arranged to enable adjacent parts in the whole bearing seat 31 to be abutted, so that the generation of gaps is prevented, and the conditions of vibration, shake and the like of the roller assembly 3 due to the gaps in the rotating process are prevented.

a chain 4 is arranged between the driving component 2 and the roller component 3, and the chain 4 is in meshed connection with the driving chain wheel 24 and the driven chain wheel 33. Specifically, when the driving sprocket 24 is driven by the driving motor 22 to rotate, the chain 4 engaged with the driving sprocket rotates, so as to drive the driven sprocket 33 and the spline shaft 30 to rotate, and the roller 32 sleeved on the spline shaft 30 rotates accordingly. In this embodiment, the drive sprocket 24 is removable and replaceable. The gear ratio of the tractor can be changed by changing the gear ratio of the driving sprocket 24 and the driven sprocket 33 by adjusting and exchanging the driving sprocket 24, and when the gear ratio is increased (the gear ratio is increased), the driving torque can be increased, so that the effective load force of the tractor is improved; when the gear ratio is decreased (the gear ratio becomes small), the effective running speed of the vehicle is increased.

In this embodiment, the opened fixing hole 15 is a long-slot fixing hole 15, and specifically, the mounting plate 14 can be adjusted in the transverse position by loosening the adjusting screw 16, so that the mounting plate 14 can be finely adjusted in the position along the straight line of the long-slot fixing hole 15, and the center distance between the driving sprocket 24 and the driven sprocket 33 can be adjusted, so that even if the chain 4 and the sprockets are worn, the chain 4 can be quickly adjusted, and the working state can be kept stable. A mounting flange 18 is arranged below the mounting plate 14, the mounting flange 18 is sleeved on the gearbox 21, and two sides of the mounting flange 18 are abutted to the inner side of the mounting frame 13. The mounting flange 18 can enable the mounting plate 14 to keep moving linearly between the mounting frames 13, and adjustment of the mounting plate 14 is facilitated.

Compared with the conventional roller 32 driving structure, the roller 32 driving structure for the tractor described in the embodiment separates the driving structure from the roller 32 structure, thereby enlarging the installation space of the roller 32 and facilitating the design and installation of the roller 32 structure. The driving structure and the roller 32 structure are driven by the chain 4, and the mounting plate 14 structure can adjust the chain 4 to keep the chain tight, so that the driving effect is ensured. The driving chain wheel 24 is detachable and replaceable, namely the gear ratio of the driving chain wheel 24 and the driven chain wheel 33 can be changed by adjusting and replacing the driving chain wheel 24, so that the gear ratio of the tractor is changed, and the working application range of the tractor using the structure is expanded.

The above description in this specification is merely illustrative of the present invention. Various modifications, additions and substitutions may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.

Claims

1. The utility model provides a roller drive structure for tractor, includes the frame that sets up on the tractor, its characterized in that: the frame is provided with a through groove and a mounting groove beside the through groove, a mounting frame fixed on the upper surface of the frame is arranged outside the through groove, the mounting frame is provided with a mounting plate, the mounting plate is provided with a limiting groove matched with the through groove, two sides of the limiting groove are provided with a plurality of fixing holes, adjusting screws are arranged in the fixing holes, and the mounting plate is fixed on the top end of the mounting frame through the adjusting screws;

The frame is provided with a driving assembly and a roller assembly, the driving assembly comprises a gearbox penetrating through the through groove, a driving motor fixed at the top end of the gearbox and connected with the gearbox, a driving flange positioned on one side of the gearbox and a driving chain wheel, the body of the driving motor penetrates through the limiting groove, the driving flange is clamped on the gearbox, and the driving chain wheel is sleeved on the driving flange;

The roller component comprises a bearing seat, rollers and a driven sprocket, the bearing seat is arranged in the mounting groove, the top end of the bearing seat is fixed with the frame, two sides of the bearing seat are provided with symmetrical shaft holes, a driving wheel bearing is arranged in the shaft holes, a driving wheel bearing cover is fixed on the outer side of each shaft hole, a clamping groove is formed in the driving wheel bearing cover, and a shaft cover is arranged in the clamping groove; a spline shaft penetrating through a bearing of the driving wheel is arranged between the shaft covers, the spline shaft and the shaft covers are fixed through screws, a roller is sleeved on the spline shaft, a driven chain wheel is arranged on one side of the roller, and the driven chain wheel is sleeved on the spline shaft;

A chain is arranged between the driving component and the roller component and is connected with the driving chain wheel and the driven chain wheel in a meshing way.

2. The roller drive structure for a tractor according to claim 1, characterized in that: the fixing hole is a long groove fixing hole.

3. the roller drive structure for a tractor according to claim 1, characterized in that: a spring washer is arranged between the driving flange and the driving chain wheel and is fixed with the driving flange through a bolt.

4. The roller drive structure for a tractor according to claim 1, characterized in that: a spacer bush with the length matched with that of the bearing is arranged between the shaft cover and the bearing at one side far away from the driven chain wheel; a spacer bush with the length matched with that of the roller is arranged between the bearing at one side far away from the driven chain wheel and the roller; a spacer bush with the length matched with that of the roller is arranged between the roller and the driven chain wheel; a spacer bush with the length matched with that of the bearing is arranged between the driven chain wheel and the bearing close to one side of the driven chain wheel; the spacer bushes are sleeved on the spline shaft.

5. The roller drive structure for a tractor according to claim 1, characterized in that: and a mounting flange is arranged below the mounting plate, the mounting flange is sleeved on the gearbox, and the two sides of the mounting flange are abutted to the inner side of the mounting frame.