CN215326789U

CN215326789U - Unmanned forklift with double-wheel differential structure

Info

Publication number: CN215326789U
Application number: CN202121227111.8U
Authority: CN
Inventors: 包先东; 杨彭
Original assignee: Anhui Hai Ma Intelligent Technology Co ltd
Current assignee: Anhui Hai Ma Intelligent Technology Co ltd
Priority date: 2021-06-02
Filing date: 2021-06-02
Publication date: 2021-12-28
Anticipated expiration: 2031-06-02

Abstract

The utility model relates to the technical field of unmanned forklifts, in particular to an unmanned forklift with a double-wheel differential structure, which comprises a driving bin and a lifting bin, wherein a differential component is arranged inside the driving bin; according to the utility model, through the arrangement of the differential assembly and the lifting assembly, when the forklift turns, the driving gear rotates on the differential gear, so that the second transmission gear smoothly transmits, the universal joint is further adjusted between the driving wheel and the driving shaft, the turning radius of the driving wheel is reduced, the driving wheel can smoothly turn, and the carrying efficiency of goods is improved.

Description

Unmanned forklift with double-wheel differential structure

Technical Field

The utility model relates to the technical field of unmanned forklifts, in particular to an unmanned forklift with a double-wheel differential structure.

Background

The unmanned forklift is a trackless vehicle which is provided with a fork which is used for carrying goods and can move up and down, can automatically carry the goods on the fork to automatically travel to a specified place, and can automatically carry out loading and unloading operation, and can realize unmanned and automatic unmanned forklift under the condition of perfecting the applied road environment. The unmanned forklift is the forklift which is most applied in the logistics field, can be automatically loaded and unloaded and automatically run, and is modified according to the common forklift and developed in a special design mode.

The drive wheel of current unmanned fork truck is mostly direct drive, and fork truck is different in the distance of traveling of both sides wheel when turning, directly drives the turning radius that makes fork truck great, leads to the unable smooth and easy turn of wheel of both sides, influences the transport of goods. In view of this, we propose an unmanned forklift with a two-wheel differential structure.

SUMMERY OF THE UTILITY MODEL

In order to make up for the defects, the utility model provides an unmanned forklift with a double-wheel differential structure.

The technical scheme of the utility model is as follows:

the utility model provides an unmanned fork truck with double round differential structure, includes drive storehouse and lift storehouse, the internally mounted in drive storehouse has the differential subassembly, the drive wheel is all installed in the outside that the left and right sides of differential subassembly just is located the drive storehouse, the right side welding in lift storehouse has the backup pad that is parallel to each other, the inside in lift storehouse and the top that is located the backup pad are equipped with lifting unit.

As preferred technical scheme, the differential subassembly is including fixed frame, the rear side welding of fixed frame has the motor frame, the inside of fixed frame and be close to right side edge welding have the ring gear, the left and right sides of fixed frame all is equipped with solid fixed ring, each gu fixed ring all with fixed frame integrated into one piece.

As preferred technical scheme, install first motor on the motor frame, the output shaft of first motor runs through fixed frame, and extends into the inside of fixed frame, install first drive gear on the output shaft of first motor, install second drive gear on the gear ring, second drive gear's right side is equipped with the loose ring, loose ring and second drive gear integrated into one piece, the loose ring rotates with the gear ring and is connected, second drive gear is connected with first drive gear meshing, second drive gear's left side welding has the transmission frame, differential gear is all installed at both ends around the transmission frame, differential gear rotates with the transmission frame and is connected.

As preferred technical scheme, the left and right sides all install the drive shaft on the solid fixed ring, the drive shaft rotates with solid fixed ring and is connected, each just be located around on the drive shaft all be equipped with drive gear between the differential gear, drive gear and differential gear meshing are connected.

As the preferred technical scheme, protective casings are installed on the left side and the right side of the driving bin, universal joints are arranged inside the protective casings, one ends of the universal joints are coaxially connected with the driving shaft, and the other ends of the universal joints are coaxially connected with the rotating shaft of the driving wheel.

As a preferred technical scheme, the right side of the lifting bin and the position above the supporting plate are provided with symmetrically distributed sliding grooves.

As the preferred technical scheme, the lifting assembly comprises a fork plate and a lifting plate, wherein the fork plate and the lifting plate are integrally formed, the fork plate is connected with the sliding groove in a sliding mode, the lifting plate is located inside the lifting bin, the lifting plate is provided with limiting holes close to the front end and the rear end, and the lifting plate is provided with threaded holes close to the center.

As preferred technical scheme, the inside in lift storehouse and be close to spacing hole department and all weld spacing axle, each spacing axle respectively with spacing hole for, spacing hole and spacing axle sliding connection, the inside in lift storehouse and be close to center department and be equipped with the screw rod, the axis of rotation of screw rod runs through the upper and lower both ends in lift storehouse, and rotates with the lift storehouse and be connected, screw rod and screw hole threaded connection, the second motor is installed to the top in lift storehouse, the output shaft of second motor and the axis of rotation coaxial coupling of screw rod.

As a preferred technical scheme, driven wheels are mounted at the bottom of the supporting plate and close to two ends of the supporting plate.

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

1. according to the utility model, the differential assembly is arranged, so that when the forklift turns, the driving distances of the driving wheels at two sides are different, the driving gear is forced to rotate on the differential gear, the transmission of the second transmission gear is facilitated, and the driving wheels can smoothly turn.

2. The universal joint is arranged between the driving wheel and the driving shaft, and can be further adjusted, so that the driving wheel can be conveniently steered when being driven, a forklift can conveniently turn, and the carrying efficiency of goods is improved.

3. According to the utility model, the lifting assembly is arranged, the second motor drives the screw rod to rotate, and the threaded hole and the screw rod move relatively, so that the lifting plate can slide on the limiting shaft, and the fork plate is convenient to carry articles.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic structural diagram of a driving chamber according to the present invention;

FIG. 3 is a schematic view of the internal structure of the driving chamber of the present invention;

FIG. 4 is a schematic structural view of the fixing frame of the present invention;

FIG. 5 is a schematic view of the differential assembly of the present invention;

FIG. 6 is a schematic view of a second transmission gear according to the present invention;

FIG. 7 is a schematic view of a support plate according to the present invention;

FIG. 8 is a schematic view of the lifting assembly of the present invention;

FIG. 9 is a schematic structural view of the fork plate of the present invention.

In the figure: 1. a driving bin; 11. a protective shell; 2. a lifting bin; 21. a chute; 3. a differential assembly; 31. a fixing frame; 311. a motor frame; 312. a gear ring; 313. a fixing ring; 32. a first motor; 33. a first drive gear; 34. a second transmission gear; 341. a movable ring; 35. a transmission frame; 36. a differential gear; 37. a drive shaft; 38. a drive gear; 39. a universal joint; 4. a drive wheel; 5. a support plate; 51. a driven wheel; 6. a lifting assembly; 61. a fork plate; 62. a lifting plate; 621. a limiting hole; 622. a threaded hole; 63. a limiting shaft; 64. a screw; 65. a second motor.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Referring to fig. 1-9, the present invention provides a technical solution:

the utility model provides an unmanned fork truck with double round differential structure, drive storehouse 1 and lift storehouse 2, the internally mounted of drive storehouse 1 has differential subassembly 3, and the drive wheel 4 is all installed in the left and right sides of differential subassembly 3 and the outside that is located drive storehouse 1, and the right side welding of lift storehouse 2 has the backup pad 5 that is parallel to each other, and the inside of lift storehouse 2 and the top that is located backup pad 5 are equipped with lift subassembly 6.

It is supplementary to need, differential assembly 3 includes fixed frame 31, and the rear side welding of fixed frame 31 has motor frame 311, and the inside of fixed frame 31 and be close to right side edge welding have a gear ring 312, and the left and right sides of fixed frame 31 all is equipped with solid fixed ring 313, and each solid fixed ring 313 all with fixed frame 31 integrated into one piece can install differential assembly 3 through fixed frame 31, adjusts when conveniently turning.

Preferably, the motor frame 311 is provided with a first motor 32, an output shaft of the first motor 32 penetrates through the fixed frame 31 and extends into the fixed frame 31, the output shaft of the first motor 32 is provided with a first transmission gear 33, the gear ring 312 is provided with a second transmission gear 34, a movable ring 341 is arranged on the right side of the second transmission gear 34, the movable ring 341 and the second transmission gear 34 are integrally formed, the movable ring 341 is rotatably connected with the gear ring 312, the second transmission gear 34 is meshed with the first transmission gear 33, the left side of the second transmission gear 34 is welded with a transmission frame 35, the front end and the rear end of the transmission frame 35 are both provided with a differential gear 36, the differential gear 36 is rotatably connected with the transmission frame 35, the first motor 32 can drive the first transmission gear 33 to rotate, the first transmission gear 33 is meshed with the second transmission gear 34 to drive the transmission frame 35 to rotate, thereby rotating the differential gear 36 and the drive gear 38 to drive the drive wheel 4 and advance the forklift.

Preferably, in this embodiment, the driving shafts 37 are mounted on both the left and right fixing rings 313, the driving shafts 37 are rotatably connected to the fixing rings 313, the driving gears 38 are provided on the driving shafts 37 between the front and rear differential gears 36, the driving gears 38 are engaged with the differential gears 36, and when the forklift turns, the driving gears 38 rotate on the differential gears 36 to adjust the driving shafts 37, thereby facilitating the turning of the driving wheels 4.

Preferably, the protection housings 11 are mounted on the left and right sides of the driving chamber 1, the universal joints 39 are disposed inside the protection housings 11, one end of each universal joint 39 is coaxially connected with the driving shaft 37, the other end of each universal joint 39 is coaxially connected with the rotating shaft of the driving wheel 4, and the universal joints 39 can further adjust the driving wheel 4 and the driving shaft 37, so that the driving wheel 4 can be driven and steered conveniently.

It is worth to be noted that the sliding grooves 21 are symmetrically distributed on the right side of the lifting bin 2 and above the supporting plate 5, and the sliding grooves 21 facilitate the fork plates 61 to slide up and down.

Preferably as this embodiment, lifting unit 6 includes fork board 61 and lifter plate 62, and fork board 61 and lifter plate 62 integrated into one piece, fork board 61 and spout 21 sliding connection, lifter plate 62 are located the inside of lift storehouse 2, and lifter plate 62 is last and all seted up spacing hole 621 near front and back both ends department, and lifter plate 62 is last and to be close to central department set up screw hole 622, makes things convenient for fork board 61 to go up and down and carry article through lifter plate 62.

Preferably, the inside of the lifting bin 2 and the position close to the limiting hole 621 are welded with limiting shafts 63, each limiting shaft 63 is respectively opposite to the limiting hole 621, the limiting hole 621 is connected with the limiting shaft 63 in a sliding manner, a screw 64 is arranged inside the lifting bin 2 and close to the center, the rotating shaft of the screw 64 penetrates through the upper end and the lower end of the lifting bin 2 and is connected with the lifting bin 2 in a rotating manner, the screw 64 is in threaded connection with a threaded hole 622, a second motor 65 is installed above the lifting bin 2, the output shaft of the second motor 65 is coaxially connected with the rotating shaft of the screw 64, the second motor 65 drives the screw 64 to rotate, the threaded hole 622 and the screw 64 can move relatively, the lifting plate 62 slides on the limiting shaft 63, and the fork plate 61 can conveniently carry articles.

In the specific use, the driven wheel 51 is installed at the bottom of the supporting plate 5 and close to two ends, the supporting plate 5 can enhance the stability of the lifting assembly 6, and the forklift is convenient to drive through the driven wheel 51.

When the unmanned forklift with the double-wheel differential structure is used and runs, the first motor 32 runs to drive the first transmission gear 33 to rotate, the first transmission gear 33 and the second transmission gear 34 are meshed and rotate to drive the transmission frame 35 to rotate, the differential gear 36 rotates along with the transmission frame 35, the differential gear 36 is meshed and fixed with the driving gear 38, the driving shaft 37 rotates on the fixing ring 313, and the driving shaft 37 drives the driving wheel 4 to rotate through the universal joint 39, so that the forklift moves forwards;

when the unmanned forklift turns, the driving distances of the driving wheels 4 on two sides are different, so that the rotation turns of the driving shaft 37 are different, the driving gear 38 rotates on the differential gear 36, the second transmission gear 34 is smoothly transmitted, and the unmanned forklift turns smoothly;

when unmanned fork truck carried article, make fork board 61 remove the article bottom, second motor 65 operation drives screw rod 64 and rotates, screw hole 622 and screw rod 64 relative motion, make lifter plate 62 upwards slide on spacing axle 63, fork board 61 forks article, thereby can carry article, can realize that unmanned fork truck has two-wheel differential structure through the above-mentioned mode, adjust when fork truck turns, make things convenient for fork truck smoothly to turn, satisfy an unmanned fork truck's demand with two-wheel differential structure.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides an unmanned fork truck with double round differential structure, includes drive storehouse (1) and lift storehouse (2), its characterized in that: the internally mounted of drive storehouse (1) has differential subassembly (3), drive wheel (4) are all installed in the outside that the left and right sides of differential subassembly (3) just is located drive storehouse (1), the right side welding of lift storehouse (2) has backup pad (5) that are parallel to each other, the inside of lift storehouse (2) and the top that is located backup pad (5) are equipped with lifting unit (6).

2. The unmanned forklift having a two-wheel differential structure according to claim 1, wherein: differential subassembly (3) are including fixed frame (31), the rear side welding of fixed frame (31) has motor frame (311), the inside of fixed frame (31) and be close to the right side edge welding have gear ring (312), the left and right sides of fixed frame (31) all is equipped with solid fixed ring (313), each gu fixed ring (313) all with fixed frame (31) integrated into one piece.

3. The unmanned forklift having a two-wheel differential structure according to claim 2, wherein: a first motor (32) is arranged on the motor frame (311), an output shaft of the first motor (32) penetrates through the fixed frame (31), and extends into the fixed frame (31), a first transmission gear (33) is arranged on the output shaft of the first motor (32), a second transmission gear (34) is arranged on the gear ring (312), a movable ring (341) is arranged on the right side of the second transmission gear (34), the movable ring (341) and the second transmission gear (34) are integrally formed, the movable ring (341) is rotationally connected with the gear ring (312), the second transmission gear (34) is meshed with the first transmission gear (33), the left side welding of second drive gear (34) has driving frame (35), differential gear (36) are all installed at both ends around driving frame (35), differential gear (36) rotate with driving frame (35) and are connected.

4. The unmanned forklift having a two-wheel differential structure according to claim 3, wherein: the left and right sides all install drive shaft (37) on fixed ring (313), drive shaft (37) are connected with fixed ring (313) rotation, each just be located around on drive shaft (37) all be equipped with drive gear (38) between differential gear (36), drive gear (38) are connected with differential gear (36) meshing.

5. The unmanned forklift having a two-wheel differential structure according to claim 4, wherein: protective housing (11) are all installed to the left and right sides in drive storehouse (1), the inside of protective housing (11) is equipped with universal joint (39), the one end and drive shaft (37) coaxial coupling of universal joint (39), the other end of universal joint (39) and the axis of rotation coaxial coupling of drive wheel (4).

6. The unmanned forklift having a two-wheel differential structure according to claim 1, wherein: the right side of the lifting bin (2) and the upper part of the supporting plate (5) are provided with symmetrically distributed sliding chutes (21).

7. The unmanned forklift having a two-wheel differential structure according to claim 1, wherein: lifting unit (6) are including fork board (61) and lifter plate (62), fork board (61) and lifter plate (62) integrated into one piece, fork board (61) and spout (21) sliding connection, lifter plate (62) are located the inside in lift storehouse (2), spacing hole (621) have all been seted up to both ends department around just being close to on lifter plate (62), on lifter plate (62) and be close to center department set up threaded hole (622).

8. The unmanned forklift having a two-wheel differential structure according to claim 7, wherein: the inside of lift storehouse (2) just is close to spacing hole (621) department and all welds spacing axle (63), each spacing axle (63) respectively with spacing hole (621) for, spacing hole (621) and spacing axle (63) sliding connection, the inside of lift storehouse (2) just is close to center department and is equipped with screw rod (64), the axis of rotation of screw rod (64) runs through the upper and lower both ends of lift storehouse (2), and rotates with lift storehouse (2) and be connected, screw rod (64) and screw hole (622) threaded connection, second motor (65) are installed to the top in lift storehouse (2), the output shaft of second motor (65) and the axis of rotation coaxial coupling of screw rod (64).

9. The unmanned forklift having a two-wheel differential structure according to claim 1, wherein: driven wheels (51) are mounted at the bottom of the supporting plate (5) and close to two ends of the supporting plate.