CN211032175U

CN211032175U - Wheel driving structure in AGV heavy-duty vehicle

Info

Publication number: CN211032175U
Application number: CN201922255963.7U
Authority: CN
Inventors: 任志勇; 郁延松
Original assignee: Tianjin Lonyu Science & Technology Progress Co ltd
Current assignee: Tianjin Lonyu Science & Technology Progress Co ltd
Priority date: 2019-12-16
Filing date: 2019-12-16
Publication date: 2020-07-17
Anticipated expiration: 2029-12-16

Abstract

The utility model belongs to the field of AGV vehicle production, in particular to a wheel driving structure in an AGV heavy duty vehicle; the device comprises a base arranged below a top mounting plate and two wheels arranged in the base, wherein the two wheels are respectively matched with a driving element independently, and are arranged on two sides of the base independently and coaxially in a rotating manner; the driving element is in transmission connection with the corresponding wheel through a chain transmission mechanism; and is also provided with a chain tensioning mechanism; the chain tensioning mechanism comprises a driving mounting plate which can be connected to one side of the base in a swinging mode, and the driving element is detachably and fixedly connected to the driving mounting plate; the base extends to one side where the driving element is located to form a connecting plate, and the driving mounting plate can be arranged on one side of the connecting plate in a swinging mode. The utility model discloses can solve among the prior art unreasonable problem of wheel drive structure.

Description

Wheel driving structure in AGV heavy-duty vehicle

Technical Field

The utility model belongs to AGV car production field especially relates to a wheel drive structure in AGV heavily carries car.

Background

In industrial production, the AGV car is because of can realizing unmanned driving, can ensure that the system just can follow predetermined route automatic traveling under the condition that does not need artifical navigation, transport the destination from the initial point with goods or material is automatic, and the good flexibility of AGV, characteristics such as degree of automation height and intelligent high level get wide application, heavy load AGV is because the load is great, the wheel need transmit great moment of torsion at operation and turn in-process, it is rotatory through the direct drive wheel of motor that generally to pass between wheel and the power supply under the current heavy load AGV car, the road surface is not at ordinary times, both sides wheel receives the inconsistent moment of torsion that produces of radial force, this kind of moment of torsion directly transmits to the motor, the motor is fragile after long-time operation.

Disclosure of Invention

In view of this, the utility model aims at providing a wheel drive structure in AGV heavy-duty car to solve the unreasonable problem of wheel drive structure among the prior art.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

the wheels of a wheel driving structure in the AGV heavy duty vehicle are arranged below a top mounting plate through a base, two wheels are respectively and independently matched with a driving element, and the two wheels are independently arranged on two sides of the base in a rotating mode with the same axle center;

the driving element is in transmission connection with the corresponding wheel through a chain transmission mechanism; and is also provided with a chain tensioning mechanism; the chain tensioning mechanism comprises a driving mounting plate connected to one side of the base, and the driving element is detachably and fixedly connected to the driving mounting plate;

the base extends to one side where the driving element is located to form a connecting plate, and the driving mounting plate can be arranged on one side of the connecting plate in a swinging mode.

Furthermore, a movable hole is arranged in the connecting plate; the driving mounting plate is attached to the connecting plate, meanwhile, a driving output shaft of the driving element penetrates through the driving mounting plate and the movable hole, and a movable space is reserved between the driving output shaft and the hole wall of the movable hole.

Furthermore, the lower ends of the driving mounting plate and the connecting plate are connected through a swing rotating shaft.

Furthermore, the upper part of the driving mounting plate is provided with a swinging hole, the driving mounting plate and the upper end of the connecting plate are detachably connected together through a fastening bolt, the fastening bolt penetrates through the swinging hole and is screwed in the connecting plate, and a nut of the fastening bolt is tightly pressed at the hole edge of the swinging hole; a clamping convex block is fixedly connected to the side surface of the driving mounting plate; the adjusting bolt is screwed in the clamping convex block in a penetrating way, and the tail end of the adjusting bolt is propped against the side face of the base.

Furthermore, the swinging hole is a fan-shaped hole.

Further, the driving element is a servo motor.

Furthermore, each wheel is provided with a wheel axle, and the two wheel axles are fixedly connected to the base and are coaxially and symmetrically distributed on the two sides of the base; the wheels are rotatably arranged on the corresponding wheel shafts through bearings; in the chain transmission mechanism, a driving chain wheel is detachably and fixedly connected to a driving output shaft, a driven chain wheel is rotatably arranged on a wheel shaft, and the driven chain wheel and a wheel are detachably and fixedly connected together.

Furthermore, a locking nut is screwed on the adjusting bolt; the locking nut is pressed on one side of the clamping convex block.

Compared with the prior art, the utility model discloses following advantage has:

the utility model discloses in, change traditional hard connected mode, the wheel that drive element and its correspond passes through chain drive transmission and connects, and the chain drive has certain flexibility, and when the road surface was not at ordinary times, when the radial force nonconformity of both sides wheel produced the moment of torsion, this kind of moment of torsion can not directly transmit to the motor, can prevent that the motor from damaging. And is also provided with a chain tensioning mechanism; the elasticity of accessible chain straining device regulation chain prevents that the chain is not hard up at transmission in-process, influences transmission effect.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the position of the drive output shaft within the movable bore;

FIG. 3 is a schematic structural view of a chain tensioning mechanism;

FIG. 4 is a schematic structural view of a base;

FIG. 5 is a schematic view of the mounting structure of the wheels on both sides of the base;

fig. 6 is a schematic view of the mounting of the drive unit under the vehicle frame.

Description of reference numerals:

1-a top mounting plate; 2-a base; 21-a connecting plate; 211-a movable aperture; 3-vehicle wheels; 31-an axle; 4-a drive element; 41-driving the output shaft; 5-chain transmission mechanism; 51-a drive sprocket; 52-a driven sprocket; 61-drive mounting plate; 611-swing holes; 62-swinging the rotating shaft; 63-fastening bolts; 64-adjusting bolts; 65-a clamping bump; 66-a locking nut; 7-a frame; 70-drive unit.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

As shown in fig. 1-6, in the AGV heavy duty vehicle, the vehicle is operated by a plurality of independent driving units 70 arranged below a frame 7, wherein each driving unit 70 is detachably mounted in the frame 7 through a top mounting plate 1, two wheels 3 are mounted in each driving unit 70, wherein the two wheels 3 are mounted below the top mounting plate 1 through a base 2, the wheels 3 in the AGV heavy duty vehicle drive the structure, specifically, the two wheels 3 are respectively and independently matched with a driving element 4, and the two wheels 3 are independently and coaxially rotatably mounted on two sides of a base 2;

the driving element 4 and the corresponding wheel 3 are in transmission connection through a chain transmission mechanism 5; and is also provided with a chain tensioning mechanism; the chain tensioning mechanism comprises a driving mounting plate 61 connected to one side of the base 2, and the driving element 4 is detachably and fixedly connected to the driving mounting plate 61;

the base 2 extends to the side of the driving element 4 to form a connecting plate 21, and the driving mounting plate 61 is arranged on one side of the connecting plate 21 in a swinging mode. A movable hole 211 is arranged in the connecting plate 21; the driving mounting plate 61 is attached to the connecting plate 21, and meanwhile, the driving output shaft 41 of the driving element 4 penetrates through the driving mounting plate 61 and the movable hole 211, and a movable space is reserved between the driving output shaft 41 and the wall of the movable hole 211. The lower ends of the drive mounting plate 61 and the connecting plate 21 are connected by a swing rotating shaft 62. The swing shaft 62 is fixed on the connecting plate 21 and passes through the driving mounting plate 61, and the driving mounting plate 61 can swing around the swing shaft 62.

The upper part of the driving mounting plate 61 is provided with a swinging hole 611, the driving mounting plate 61 and the upper end of the connecting plate 21 are detachably connected together through a fastening bolt 63, the fastening bolt 63 penetrates through the swinging hole 611 and is screwed in the connecting plate 21, and the nut of the fastening bolt 63 is pressed at the hole edge of the swinging hole 611; a clamping convex block 65 is fixedly connected to the side surface of the driving mounting plate 61; the adjusting device also comprises an adjusting bolt 64, wherein the adjusting bolt 64 is penetrated and screwed in the clamping lug 65, and the tail end of the adjusting bolt 64 is propped against the side surface of the base 2.

Preferably, the swing hole 611 is a sector hole, so that the fastening bolt 63 has a large moving space in the swing hole 611 when the driving mounting plate 61 swings around the swing rotation shaft 62.

Preferably, the drive element 4 is a servomotor.

Furthermore, each wheel 3 is provided with a wheel axle 31, and the two wheel axles 31 are fixedly connected to the base 2 and are coaxially and symmetrically distributed on the two sides of the base 2; the wheels 3 are rotatably mounted on respective axles 31 by means of bearings; in the chain transmission mechanism 5, a driving chain wheel 51 is detachably fixed on the driving output shaft 41, a driven chain wheel 52 is rotatably arranged on the wheel shaft 31, and the driven chain wheel 52 and the wheel 3 are detachably fixed together through bolts.

Preferably, a lock nut 66 is screwed on the adjusting bolt 64; the locking nut 66 is pressed against the side of the detent projection 65.

The utility model discloses in, change traditional hard connected mode, drive element 4 and its wheel 3 that corresponds are connected through 5 transmissions of chain drive, and the chain drive has certain flexibility, and when the road surface was not at ordinary times, when 3 inconsistent production moments of radial force of both sides wheel, this kind of moment of torsion can not directly transmit to the motor, can prevent that the motor from damaging. And is also provided with a chain tensioning mechanism; the tightness of the chain can be adjusted through the chain tensioning mechanism, the chain is prevented from loosening in the transmission process, when the chain is loosened and needs to be tensioned, only the fastening bolt 63 needs to be loosened to enable the driving mounting plate 61 to swing around the swing rotating shaft 62 at the lower end of the connecting plate 21, the adjusting bolt 64 is screwed, the adjusting bolt 64 is propped against the side surface of the base 2, the clamping convex block 65 reversely drives the driving mounting plate 61 and the servo motor thereon to swing outwards by a small angle, so that the output shaft of the servo motor and the driving sprocket 51 thereon also move outwards, the driving sprocket 51 gradually tensions the chain in the moving process, when the chain is sensed to be tensioned in place, the fastening bolt 63 is tightened to fixedly connect the driving mounting plate 61 and the connecting plate 21, and then the locking nut 66 is tightened, so that the locking nut 66 plays a role in strengthening locking and prevents the threaded connection between the adjusting bolt 64 and the clamping lug 65 from loosening.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

Wheel drive structure in AGV heavily carries car, its characterized in that: the wheels (3) are arranged below the top mounting plate (1) through the base (2), the two wheels (3) are respectively and independently matched with the driving element (4), and the two wheels (3) are independently and coaxially and rotatably arranged on two sides of the base (2);

the driving element (4) is in transmission connection with the corresponding wheel (3) through a chain transmission mechanism (5); and is also provided with a chain tensioning mechanism; the chain tensioning mechanism comprises a driving mounting plate (61) connected to one side of the base (2), and the driving element (4) is detachably and fixedly connected to the driving mounting plate (61);

the base (2) extends towards one side where the driving element (4) is located to form a connecting plate (21), and the driving mounting plate (61) can be arranged on one side of the connecting plate (21) in a swinging mode.
2. The structure of claim 1, wherein: a movable hole (211) is arranged in the connecting plate (21); the driving mounting plate (61) is attached to the connecting plate (21), meanwhile, a driving output shaft (41) of the driving element (4) penetrates through the driving mounting plate (61) and the movable hole (211), and a movable space is reserved between the driving output shaft (41) and the wall of the movable hole (211).
3. The structure of claim 2, wherein: the lower ends of the drive mounting plate (61) and the connecting plate (21) are connected through a swing rotating shaft (62).
4. The structure of claim 2, wherein: the upper part of the driving mounting plate (61) is provided with a swinging hole (611), the driving mounting plate (61) and the upper end of the connecting plate (21) are detachably connected together through a fastening bolt (63), the fastening bolt (63) penetrates through the swinging hole (611) and is screwed in the connecting plate (21) at the same time, and a nut of the fastening bolt (63) is pressed at the hole edge of the swinging hole (611);

a clamping convex block (65) is fixedly connected to the side surface of the driving mounting plate (61); the adjusting device also comprises an adjusting bolt (64), the adjusting bolt (64) is screwed in the clamping lug (65) in a penetrating way, and the tail end of the adjusting bolt (64) is propped against the side surface of the base (2).
5. The AGV of claim 4, wherein said wheel driving mechanism further comprises: the swinging hole (611) adopts a fan-shaped hole.
6. The structure of claim 1, wherein: the driving element (4) is a servo motor.
7. The structure of claim 1, wherein: each wheel (3) is provided with a wheel axle (31), the two wheel axles (31) are fixedly connected to the base (2) and are coaxially and symmetrically distributed on the two sides of the base (2); the wheels (3) are rotatably mounted on the corresponding wheel shafts (31) through bearings; in the chain transmission mechanism (5), a driving chain wheel (51) is detachably and fixedly connected to a driving output shaft (41), a driven chain wheel (52) is rotatably arranged on a wheel shaft (31), and the driven chain wheel (52) and a wheel (3) are detachably and fixedly connected together.
8. The AGV of claim 4, wherein said wheel driving mechanism further comprises: a locking nut (66) is screwed on the adjusting bolt (64); the locking nut (66) is pressed on one side of the blocking lug (65).