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CN220564226U - Driving assembly and ground beetle - Google Patents

Driving assembly and ground beetle Download PDF

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Publication number
CN220564226U
CN220564226U CN202320840685.5U CN202320840685U CN220564226U CN 220564226 U CN220564226 U CN 220564226U CN 202320840685 U CN202320840685 U CN 202320840685U CN 220564226 U CN220564226 U CN 220564226U
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China
Prior art keywords
driving
drive assembly
driving wheel
assembly
speed reducer
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CN202320840685.5U
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Chinese (zh)
Inventor
付林霄
顾荣兴
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Suzhou Jiuwu Intelligent Technology Co ltd
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Suzhou Jiuwu Intelligent Technology Co ltd
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Abstract

The utility model relates to a driving assembly and a ground ox, wherein the driving assembly is arranged on a fork of the ground ox and is used for driving the ground ox to move, and the driving assembly comprises: the driving wheel set comprises a driving wheel and a transmission shaft which are coaxially and fixedly connected, and the transmission shaft is arranged to be rotationally connected with a fork of the ground beetle; the driving source comprises a speed reducer and a driving motor connected with the input end of the speed reducer, and the horizontal center plane of the speed reducer is higher than the horizontal center plane of the driving wheel; the transmission assembly is connected with the output end of the speed reducer and the transmission shaft; and the adjustable mounting assembly is mounted on the fork to provide a mounting foundation for the driving source and is used for tensioning and adjusting the transmission assembly. The automatic AGV driving device realizes the autonomous setting of the driving wheel in the vertical direction, and meets the AGV ground clearance in the industry design standard.

Description

Driving assembly and ground beetle
Technical Field
The utility model relates to the technical field of cargo handling, in particular to a driving assembly and a ground beetle.
Background
Floor cattle, also called manual hydraulic pallet truck, pallet truck and pallet truck; it is widely used in workshops, warehouses, wharfs, stations, and yard areas, etc.
The traditional ground ox is not less than 30mm according to industry design standard, and the minimum point is from ground clearance, current ground ox AGV (Automated Guided Vehicles, automatic guided vehicle) is limited to current technique and automobile body overall arrangement restriction, and the height is generally only about 15mm from the ground for ground ox AGV trafficability characteristic is relatively poor, has strict requirement to ground planarization during the use.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model discloses a driving assembly and a ground beetle.
The technical scheme adopted by the utility model is as follows:
a drive assembly for mounting to a fork of a ground beetle for driving the movement of the ground beetle, comprising:
the driving wheel set comprises a driving wheel and a transmission shaft which are coaxially and fixedly connected, and the transmission shaft is arranged to be in rotary connection with a fork of the ground beetle;
the driving source comprises a speed reducer and a driving motor connected with the input end of the speed reducer, and the horizontal central plane of the speed reducer is higher than the horizontal central plane of the driving wheel;
the transmission assembly is connected with the output end of the speed reducer and the transmission shaft;
and the adjustable mounting assembly is mounted on the fork so as to provide a mounting foundation for the driving source and is used for tensioning and adjusting the transmission assembly.
In some embodiments, the radial dimension of the end portions of the drive wheel is less than the central radial dimension of the drive wheel.
In some embodiments, the outer peripheral surface of the drive wheel is provided with at least one annular groove.
In some embodiments, the transmission assembly comprises a driving sprocket arranged at the output end of the speed reducer, a driven sprocket coaxially fixed on the transmission shaft, and a transmission chain meshed with the driving sprocket and the driven sprocket.
In some embodiments, the adjustable mounting assembly comprises a fixed plate fixedly connected with the speed reducer, a side plate 304 arranged on one side of the fixed plate, a mounting plate mounted on the inner wall of the fork, and an adjusting bolt penetrating through the side plate and abutting against the mounting plate; the fixed plate and the mounting plate can slide relatively; the side plates are provided with threaded through holes in threaded fit with the adjusting bolts.
In some embodiments, the fixing plate is provided with a sliding groove, the mounting plate is provided with a sliding rail matched with the sliding groove, and the fixing plate is clamped on the sliding rail through the sliding groove and can slide relatively along the setting direction of the sliding rail.
In some embodiments, the cross-sectional shape of the chute and the cross-sectional shape of the slide rail are both T-shaped.
In some embodiments, the adjustable mounting assembly further includes at least one adjustment nut threadably engaged with the adjustment bolt, the adjustment nut for preventing relative rotation of the adjustment bolt and the side plate.
A floor cow, comprising:
the frame body comprises a frame head part and a fork connected with the frame head part;
the lifting mechanism is arranged on the frame main body and used for bearing and lifting materials;
the driving assembly is installed in the fork to drive the frame body to move.
Compared with the prior art, the technical scheme of the utility model has the following advantages:
1. the driving assembly adopts a separated driving wheel group layout, namely, a transmission assembly is arranged between the driving wheel and the driving source, so that the driving wheel is autonomously arranged in the vertical direction, the central plane of the driving wheel is lower than the central plane of the speed reducer, and the requirement that the ground clearance of the lowest point of the driving wheel is not less than 30mm is further met.
2. According to the driving assembly, the driving wheel is not directly connected with the driving source, so that the width of the driving wheel can be designed to be wider, the contact area between the driving wheel and the ground is increased, and slipping is prevented.
Drawings
In order that the utility model may be more readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof that are illustrated in the appended drawings.
FIG. 1 is a side view of a prior art drive assembly for a floor cow AGV.
FIG. 2 is a top view of a prior art drive assembly for a floor cow AGV.
Fig. 3 is a side view of the drive assembly of the present utility model.
Fig. 4 is a side view of the drive assembly (fork removed) of the present utility model.
Fig. 5 is a top view of the drive assembly of the present utility model.
Fig. 6 is an exploded view of the drive assembly (with the forks removed) of the present utility model.
FIG. 7 is a schematic diagram of the structure of the Bull in the present utility model.
Description of the specification reference numerals: 1. a driving wheel group; 101. a driving wheel; 102. a transmission shaft; 2. a transmission assembly; 201. a drive sprocket; 202. a drive chain; 203. a driven sprocket; 3. an adjustable mounting assembly; 301. a fixing plate; 3011. a chute; 302. an adjusting bolt; 303. a nut; 304. a side plate; 305. a mounting plate; 3051. a slide rail; 4. a driving motor; 5. a speed reducer; 6. a fork; 7. a vehicle head part; 8. a lifting mechanism.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. It will be apparent that the described embodiments are some, but not all, embodiments of the utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
The ground clearance of the lowest point of the traditional ground beetles is not less than 30mm according to the industry design standard. However, the applicant found in practical design and research that the current ground cow AGV has a maximum ground clearance of only about 15 mm. As shown in fig. 1 and 2, the main factor causing this problem is that the existing ground ox driving wheel and the decelerator output shaft are directly connected, the driving wheel is fixed on the side wall of the fork by the bolts, the fork height of the ground ox AGV limits the diameter size of the driving wheel, and the ground clearance of the ground ox AGV depends on the difference between the diameter of the driving wheel and the outer diameter of the decelerator, which results in the ground clearance of the ground ox AGV being only about 15mm at maximum (the ground clearance is L1 as marked in fig. 1), so that it is difficult to meet the requirement that the lowest point ground clearance of the fork portion of the cargo truck in the conventional industry design standard of the ground ox is not less than 30mm.
Also, the following problems are also encountered with the above-described structure: firstly, the driving wheel is directly connected with the speed reducer, and vibration and impact generated when the driving wheel walks are directly transmitted to a gear set inside the speed reducer, so that the service life of a gear of the speed reducer is inevitably reduced, and even the gear of the speed reducer is damaged; secondly, the width restriction in the fork of ground ox AGV, the drive wheel links directly with the output of reduction gear, occupies the width dimension between the fork, leads to the drive wheel width less, therefore the drive wheel area of contact ground is little, easily skids.
In order to solve the above problems, the present utility model provides a floor cow, which comprises a frame body, a lifting mechanism 8 and a driving assembly. The frame body comprises a frame head 7 and a fork 6 fixedly connected with the frame head 7.
The truck head 7 and the fork 6 can be integrally formed into a whole structure, and can be fixedly connected by fastening and welding by adopting a fastener. The lifting mechanism 8 is arranged on the frame main body and is used for bearing and lifting materials. The driving component is arranged in the fork 6, and the frame main body can move forwards, backwards and turn through the driving component.
Referring to fig. 3-6, in particular, the drive assembly includes a drive wheel set 1, a drive source, a transmission assembly 2, and an adjustable mounting assembly 3.
The driving wheel set 1 comprises a driving wheel 101 and a transmission shaft 102, wherein the driving wheel 101 and the transmission shaft 102 are coaxially connected, and the transmission shaft 102 is arranged to be rotationally connected with a fork 6 of a ground beetle;
specifically, the drive wheel 101 includes a rubber tire and a hub, the rubber tire wrapping the hub. The driving wheel 101 has an end portion and a middle portion, the radial dimension of the end portion of the driving wheel 101 is smaller than the radial dimension of the middle portion of the driving wheel 101, the design is that the driving wheel 101 forms ball-like contact with the ground, the lateral resistance of the surface of the driving wheel 101 is small, and the rotation resistance of the driving wheel 101 in-situ revolution is small. Specifically, the end portions and the intermediate portion of the driving wheel 101 are both circular in shape.
Further, at least one annular groove is formed on the outer peripheral surface of the driving wheel 101, and the cross section of the annular groove is U-shaped or has other geometric shapes. Wherein, each annular groove is continuously arranged along the circumferential direction of the driving wheel 101 (as shown in fig. 5) or discontinuously arranged (not shown in the drawing), or each annular groove is continuously or discontinuously arranged along the axial direction of the driving wheel 101 (not shown in the drawing), and it should be noted that the discontinuously arranged annular groove comprises a plurality of sections of slots, the cross section of the slots is U-shaped or other geometric shapes, a space is formed between the adjacent two ends of the slots, and a connecting line of the central lines of the plurality of sections of slots forms a ring or a straight line. Typically, a plurality of annular grooves are arranged in parallel (as shown in fig. 5) or a plurality of annular grooves are crisscrossed. The annular groove has the functions of increasing the friction between the surface of the driving wheel 101 and the road surface, improving the grounding elasticity of the surface of the driving wheel 101, generating larger tangential elastic deformation under the action of tangential force between the surface of the driving wheel 101 and the road surface, and increasing static friction force to the ground under the combined action of the surface of the driving wheel 101 and the road surface, so as to prevent the driving wheel 101 from skidding.
The design of the driving wheel 101 can reduce the rotation resistance of the ground beetles during rotation, increase the static friction force of the driving wheel 101 to the ground, and further prevent the ground beetles from slipping. The anti-slip effect of the driving wheel 101 is better than the prior art.
The driving source comprises a speed reducer 5 and a driving motor 4, wherein the output end of the driving motor 4 is connected with the input end of the speed reducer 5, and the horizontal center plane of the speed reducer 5 is higher than the horizontal center plane of the driving wheel 101;
the transmission assembly 2 is connected with the output end of the speed reducer 5 and the transmission shaft 102; as shown in fig. 5, the transmission assembly 2 includes a driving sprocket 201, a driven sprocket 203, and a transmission chain 202, the driving sprocket 201 is disposed at an output end of the speed reducer 5, the driven sprocket 203 is coaxially fixed to the transmission shaft 102, and the transmission chain 202 is engaged with the driving sprocket 201 and the driven sprocket 203.
Alternatively, the transmission assembly 2 may be constructed as follows: the transmission assembly 2 includes three sprocket wheels meshed with each other, and for easy understanding, the three sprocket wheels are defined as a first sprocket wheel, a second sprocket wheel and a third sprocket wheel, the first sprocket wheel is provided at an output end of the speed reducer 5, the third sprocket wheel is provided at an end of the transmission shaft 102, the second sprocket wheel is meshed with the first sprocket wheel and the third sprocket wheel, respectively, and the first sprocket wheel transmits power to the third sprocket wheel through the second sprocket wheel. The number of sprockets is not limited to three, but may be two or more, as long as it is satisfied that two adjacent sprockets can mesh and transmit the power of the speed reducer 5 to the driving wheel 101.
Alternatively, the transmission assembly 2 may be configured as follows: the transmission assembly 2 comprises a first synchronous wheel, a synchronous belt and a second synchronous wheel, the first synchronous wheel is arranged at the output end of the speed reducer 5, the second synchronous wheel is arranged at the end part of the transmission shaft 102, the synchronous belt is in friction transmission with the first synchronous wheel and the second synchronous wheel, and the first synchronous wheel transmits power to the second synchronous wheel through the synchronous belt. One or more tensioning wheels can be arranged between the first synchronizing wheel and the second synchronizing wheel, and the tensioning wheels realize a certain tensioning effect on the synchronous belt.
Preferably, the driving wheel 101 is connected with the speed reducer 5 through the transmission chain 202, so that the speed reducer 5 is protected from vibration and impact of the driving wheel, and the service life of the speed reducer 5 can be prolonged.
Compared with the prior art that the driving wheel and the reducer output shaft are directly connected, the driving source and the driving wheel group 1 are in separated layout, namely, the transmission assembly 2 is arranged between the driving source and the driving wheel group 1, the output end of the reducer 5 is not directly connected with the driving wheel 101, the driving wheel 101 is independently arranged in the vertical direction as shown in fig. 3, the ground clearance of the driving wheel in the vertical direction can be understood to be adjustable, and the ground clearance of the ground cow is further solved, and the requirement that the ground clearance of the lowest point of the AGV of the ground cow is not less than 30mm (the ground clearance is L2 as marked in fig. 3).
As shown in fig. 6, an adjustable mounting assembly 3 is mounted to the fork 6 to provide a mounting base for the drive source and for tensioning adjustment of the drive assembly 2. Specifically, the adjustable mounting assembly 3 includes a fixed plate 301, a side plate 304, a mounting plate 305, and an adjustment bolt 302; the fixed plate 301 is fixedly connected with the speed reducer 5, the side plate 304 is arranged on one side of the fixed plate 301, the mounting plate 305 is mounted on the inner wall of the fork 6, and the adjusting bolt 302 penetrates through the side plate 304 and is in contact with the mounting plate 305; the fixed plate 301 and the mounting plate 305 can slide relatively; the side plate 304 is provided with at least one threaded through hole which is in threaded engagement with the adjustment bolt 302 such that the adjustment bolt 302 passes through the side plate 304 without obstruction.
The fixing plate 301 and the side plate 304 can slide relatively, and the design for realizing the relative sliding between the fixing plate 301 and the side plate 304 is as follows: the fixing plate 301 is provided with a sliding groove 3011, the mounting plate 305 is provided with a sliding rail 3051 matched with the sliding groove 3011, and the fixing plate 301 is clamped on the sliding rail 3051 through the sliding groove 3011 and can relatively slide along the arrangement direction of the sliding rail 3051;
in addition, since the fixing plate 301 is required to be engaged with the slide rail 3051 through the slide groove 3011 and can slide relatively along the installation direction of the slide rail 3051, the cross-sectional shape of the slide groove 3011 and the cross-sectional shape of the slide rail 3051 are preferably identical, for example, the cross-sectional shape of the slide groove 3011 and the cross-sectional shape of the slide rail 3051 may be designed to be T-shaped.
Further, the adjustable mounting assembly 3 further comprises at least one adjustment nut 303, the adjustment nut 303 being threadedly engaged with the adjustment bolt 302, the adjustment nut 303 being adapted to prevent relative rotation of the adjustment bolt 302 and the side plate 304. After the adjusting bolt 302 is installed in place, the adjusting nut 303 is screwed down, so that the fixed connection between the adjusting bolt 302 and the side plate 304 is realized. The number of the adjusting bolts 302 and the adjusting nuts 303 is not limited, as long as the adjusting bolts 302 are fastened by corresponding threaded through holes passing through the side plates 304.
As shown in fig. 7, the lifting mechanism 8 includes a lifting drive source and a lifting plate, and the lifting drive source drives the lifting plate to move up and down so as to drive the lifting plate and the goods on the lifting plate to move up and down. The lifting driving source can be in the form of a hydraulic cylinder, and of course, other actuating elements capable of enabling the lifting plate to do linear reciprocating motion can be used as the lifting driving source, and the lifting driving source can be selected and adjusted according to requirements by a person skilled in the art.
The driving assembly works as follows:
the transmission assembly 2 is welded on one side of the hub of the driving wheel 101, the output end of the speed reducer 5 is connected with the driving wheel 101 through the driving sprocket 201, the transmission chain 202 and the driven sprocket 203, after the end part of the adjusting bolt 302 abuts against the mounting plate 305 and the adjusting nut 303 is screwed down, under the action of the reaction force of the mounting plate 305, the fixing plate 301 drives the speed reducer 5 to move in the screwing down direction, finally drives the transmission chain 202 to tension, and the transmission shaft 102 passes through a bearing hole of the hub of the driving wheel 101 and is fixed on a mounting hole of the lower side wall of the base plate, so that the central plane of the driving wheel 101 is lower than the central plane of the speed reducer 5.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations and modifications of the present utility model will be apparent to those of ordinary skill in the art in light of the foregoing description. It is not necessary here nor is it exhaustive of all embodiments. And obvious variations or modifications thereof are contemplated as falling within the scope of the present utility model.

Claims (9)

1. A drive assembly for a pallet fork (6) mounted to a ground beetle for driving the ground beetle to move, comprising:
the driving wheel set (1) comprises a driving wheel (101) and a transmission shaft (102) which are coaxially and fixedly connected, and the transmission shaft (102) is arranged to be in rotary connection with a fork (6) of a ground beetle;
the driving source comprises a speed reducer (5) and a driving motor (4) connected with the input end of the speed reducer (5), and the horizontal center plane of the speed reducer (5) is higher than the horizontal center plane of the driving wheel (101);
the transmission assembly (2) is connected with the output end of the speed reducer (5) and the transmission shaft (102);
an adjustable mounting assembly (3) mounted to the fork (6) to provide a mounting basis for the drive source and for tensioning adjustment of the drive assembly (2).
2. The drive assembly of claim 1, wherein the drive assembly comprises a drive assembly,
the radial dimension of the end of the driving wheel (101) is smaller than the central radial dimension of the driving wheel (101).
3. The drive assembly according to claim 1 or 2, wherein,
at least one annular groove is formed in the outer peripheral surface of the driving wheel (101).
4. The drive assembly of claim 1, wherein the drive assembly comprises a drive assembly,
the transmission assembly (2) comprises a driving sprocket (201) arranged at the output end of the speed reducer (5), a driven sprocket (203) coaxially fixed on the transmission shaft (102) and a transmission chain (202) meshed and matched with the driving sprocket (201) and the driven sprocket (203).
5. The drive assembly of claim 1, wherein the drive assembly comprises a drive assembly,
the adjustable mounting assembly (3) comprises a fixed plate (301) fixedly connected with the speed reducer (5), a side plate (304) arranged on one side of the fixed plate (301), a mounting plate (305) mounted on the inner wall of the fork (6) and an adjusting bolt (302) penetrating through the side plate (304) and abutting against the mounting plate (305); the fixed plate (301) and the mounting plate (305) can slide relatively; the side plate (304) is provided with a threaded through hole in threaded fit with the adjusting bolt (302).
6. The driving assembly according to claim 5, wherein the fixing plate (301) is provided with a sliding groove (3011), the mounting plate (305) is provided with a sliding rail (3051) matched with the sliding groove (3011), and the fixing plate (301) is clamped on the sliding rail (3051) through the sliding groove (3011) and can slide relatively along the setting direction of the sliding rail (3051).
7. The drive assembly of claim 6, wherein the cross-sectional shape of the runner (3011) and the cross-sectional shape of the rail (3051) are both T-shaped.
8. The drive assembly according to claim 5, wherein the adjustable mounting assembly (3) further comprises at least one adjustment nut (303) threadedly engaged with the adjustment bolt (302), the adjustment nut (303) being adapted to prevent relative rotation of the adjustment bolt (302) and the side plate (304).
9. A floor cow, comprising:
the frame body comprises a frame head (7) and a fork (6) connected with the frame head (7);
the lifting mechanism (8) is arranged on the frame main body and used for bearing and lifting materials;
a drive assembly according to any one of claims 1 to 8, mounted within the fork (6) to drive movement of the carriage body.
CN202320840685.5U 2023-04-14 2023-04-14 Driving assembly and ground beetle Active CN220564226U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202320840685.5U CN220564226U (en) 2023-04-14 2023-04-14 Driving assembly and ground beetle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202320840685.5U CN220564226U (en) 2023-04-14 2023-04-14 Driving assembly and ground beetle

Publications (1)

Publication Number Publication Date
CN220564226U true CN220564226U (en) 2024-03-08

Family

ID=90102620

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202320840685.5U Active CN220564226U (en) 2023-04-14 2023-04-14 Driving assembly and ground beetle

Country Status (1)

Country Link
CN (1) CN220564226U (en)

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