CN211078370U

CN211078370U - Pallet fork

Info

Publication number: CN211078370U
Application number: CN201921825914.6U
Authority: CN
Inventors: 康琰; 于振涛; 贾乃林
Original assignee: Suzhou Genuocheng Intelligent Technology Co ltd
Current assignee: Suzhou Genuocheng Intelligent Technology Co ltd
Priority date: 2019-10-29
Filing date: 2019-10-29
Publication date: 2020-07-24
Anticipated expiration: 2029-10-29

Abstract

The application discloses a fork, which comprises a fork support frame, wherein the fork support frame comprises a cargo bearing surface arranged at the bottom and fixed arms arranged at two sides of the bearing surface; the fixed arm is provided with an outward extending fork, two ends of the outward extending fork comprise shifting fork mechanisms used for driving goods, and the outward extending fork is connected with an outward extending fork driving mechanism; the goods carrying surface is a goods carrying surface of a goods conveying device, and the goods conveying device is connected with a driving device capable of keeping the goods conveying speed the same as the moving speed of the outward extending fork; the fork has the characteristics of long service life and large bearing weight.

Description

Pallet fork

Technical Field

The utility model belongs to goods letter sorting field in particular to improvement to linear goods letter sorting conveyer.

Background

The fork is the equipment of goods letter sorting transportation in commodity circulation, the wisdom warehouse system in-process commonly used. The working principle is that the goods are pulled into the fork through the extending fork of the fork, and the goods can be pushed to the outside of the fork through the extending fork, so that the transfer or sorting of the goods is completed. The two ends of the outward extending fork are respectively provided with a shifting fork mechanism, and the shifting fork mechanisms rotate to 90 degrees when being pulled in or pushed out so that the shifting fork mechanisms can hold the goods, and therefore the fork is pushed to move. The outrigger typically comprises two sections, a first outrigger mounted on a second outrigger, which is mounted on the sliding track. A driving device is arranged on a supporting frame of the fork and drives the extension fork to move, and the driving device drives the extension fork to move in a transmission belt lamp mode. The driving device can be a driving motor or a driving module lamp. The goods get into the bottom supporting surface of the fork through the outward extending fork, and the supporting surface is a smooth surface and facilitates the sliding of the goods.

SUMMERY OF THE UTILITY MODEL

The existing fork completely depends on a shifting fork mechanism and an outward extending fork to drive the goods to move, the outward extending fork needs to slide and contract to require high matching precision, and the service life of the fork is shortened seriously due to abrasion of the fork during long-term goods.

Meanwhile, the driving structure of the fork and the load of the shifting fork are limited, and the heavy goods transportation capacity is limited.

The bearing surface at the bottom of the fork generates frictional resistance to the goods when the goods pass by, which is not beneficial to goods transportation and simultaneously further facilitates the two problems.

For solving above-mentioned technical problem the utility model discloses the centre of overhanging fork will the goods holding surface of fork bottom changes goods conveyer into, and conveyer can produce the pulling force to the goods when the fork draws the goods into fork inside like this, and goods conveyer transports the goods when the goods gets into the fork inside completely, and conveyer and fork release the fork with the goods jointly when the goods is released outside.

The utility model provides a pallet fork, which comprises a pallet fork supporting frame, wherein the pallet fork supporting frame comprises a cargo carrying surface arranged at the bottom and fixed arms arranged at the two sides of the carrying surface; the fixed arm is provided with an outward extending fork, two ends of the outward extending fork comprise shifting fork mechanisms used for driving goods, and the outward extending fork is connected with an outward extending fork driving mechanism; the goods bearing surface is a goods bearing surface of a goods conveying device, and the goods conveying device is connected with a driving device capable of keeping the goods conveying speed the same as the moving speed of the outward extending fork.

In a preferred embodiment, the goods conveying device is a belt conveying device which comprises a conveying belt, a pair of reversing wheels and a driving wheel, wherein the reversing wheels are arranged at two ends of the conveying belt, and the driving wheel is connected with the driving device.

In a preferred embodiment, the driving device comprises a driving motor, a universal transmission shaft and a rotating speed controller; the driving motor is connected with a universal transmission shaft, and the universal transmission shaft is connected with a driving wheel; the rotating speed controller is electrically connected with the motor.

In a preferred embodiment, tensioning wheels are arranged on two sides of the driving wheel, the outer surface of the conveying belt abuts against the tensioning wheels, and the inner surface of the conveying belt abuts against the driving wheel.

In a preferred embodiment, the loading surface of the conveyor belt is maintained at the same level as the outer support surface of the support frame.

In a preferred embodiment, the rotational speed controller is also electrically connected to the motor of the outrigger drive mechanism.

In a preferred embodiment, the outrigger comprises a first outrigger and a second outrigger, the first outrigger slidably mounted on a second section outrigger; the fixed arm is provided with a sliding rail, and the second section of the outer extending fork is slidably arranged on the sliding rail.

In a preferred embodiment, the slide rails are roller slide rails.

Compared with the prior art, the pallet fork scheme has at least the following improvements: 1. the fork and the conveyor cooperation can reduce the wearing and tearing to overhanging fork and be favorable to prolonging the life of fork.

2. The conveying device can improve the maximum load capacity of the fork under the combined action of the fork and the fork.

3. The goods pass through conveyer independent transportation when inside at the fork and do not produce extra friction, further reduced the wearing and tearing of overhanging fork, improved the load weight of fork simultaneously.

Drawings

Fig. 1 is a cross-sectional view of a pallet fork.

Fig. 2 is a schematic top view of the fork.

Fig. 3 is a schematic longitudinal section of the cargo conveyor.

Detailed Description

Fig. 1 shows a cross section of a fork, in which the longitudinal positional relationship between the structures of the fork 100 is shown, and the main function of the fork is to convey and sort goods in a logistics system such as a logistics warehouse and an intelligent warehouse.

With reference to fig. 1, the device generally comprises a support frame 9 and a fixed arm 11 arranged on the support frame, a goods conveyor 8 arranged at the bottom of the support frame, an outer fork 40 arranged on the fixed arm, and drive means (

reference numerals

6, 7, 15, 16) for said goods conveyor and outer fork.

The respective components and the connection relationship therebetween are described in detail below.

Fork support frame

Referring to fig. 1, a fork support frame 8 is used as a support structure of the whole fork, the bottom stroke of the fork support frame is used for accommodating an accommodating space of a goods conveying device, a fixed arm 11 is arranged on two sides of the fork support frame, and the fixed arm 11 is provided with an external fork 40 and a driving device 16 for driving the external fork 40. And a driving device 15 for driving the goods conveyor, wherein the driving device comprises a driving motor 15 and a universal transmission shaft 7 for connecting the goods driving device.

Overhanging fork

The outer fork is arranged on the fixed arm 11, and the outer fork 40 is driven by the micro-drag chain 10 arranged in the fixed arm 11, but the micro-drag chain 10 is only one of the driving mechanisms for driving the outer fork, and the outer fork can also be driven in a linear module mode.

The outrigger fork 40 comprises a first outrigger fork 2 and a second outrigger fork 4, the first outrigger fork 2 is slidably mounted on the second outrigger fork 4, it should be noted that two outrigger forks are only a preferred solution, and the application does not limit the number of outrigger forks, and a single outrigger fork can also be used; the fixed arm 11 is provided with a sliding rail 3, and the second section of the outer extending fork 4 is slidably arranged on the sliding rail 3. The slide rail is a roller slide rail, and obviously, other slide rails can be used for replacing the roller slide rail to achieve the same technical effect

Goods conveyor and drive for an outrigger

Referring to fig. 2, the driving device 15 of the cargo conveying device 8 and the driving device 16 of the outer fork 40 of the present invention are both motors, and the motors include common motors such as stepping motors and servo motors, the driving motor of the cargo conveying device 8 and the driving motor of the outer fork driving device 15 are respectively connected to the rotation speed controller 14, and the rotation speed controller 14 is used to make the rotation speeds of the two motors respectively keep two stable speeds, and the moving speed of the outer fork keeps consistent with the speed of the cargo conveying device for conveying the cargo.

So that the outriggers 40 and the load carrying device can remain synchronized during the load carrying process.

The speed controller 14 can be a motor speed governor, a P L C controller, a single-chip microcomputer program control board, and the speed controller can be one or two.

It should be clearly understood that the actual rotational speeds of the two motors (15, 16, respectively) are not necessarily the same due to differences in the transmission mechanisms such as the intermediate drive mechanism or the transmission, and therefore the speed ratios of the two motors are not particularly limited as long as the same transport speed of the outrigger and the cargo conveyor can be ensured.

Goods conveying device

The goods conveyer 8 is arranged at the bottom of the supporting frame 9 as a goods bearing surface, and plays a role of transporting goods together with the outriggers 40, and the goods conveyer comprises various forms, and a certain gap can be reserved between a plurality of parallel rollers. The rollers are driven by a motor. The goods conveyor may also be a belt conveyor, the upper surface of which serves as the loading surface for the goods.

The specific structure of the cargo conveyor will be described below by taking a conveyor belt as an example.

Referring to fig. 3, the belt conveyor comprises a conveyor belt 23, a pair of reversing wheels 21 and a driving wheel 19, wherein the reversing wheels 21 are arranged at two ends of the conveyor belt 23, and the driving wheel 19 is connected with a driving device.

Further, the driving device comprises a driving motor 15, a universal transmission shaft 7 and a rotating speed controller 14; the driving motor is connected with a universal transmission shaft 7, and the universal transmission shaft 7 is connected with a driving wheel; the rotating speed controller is electrically connected with the motor.

Furthermore, tensioning wheels 20 are arranged on two sides of the driving wheel 19, the outer surface of the conveyor belt 23 abuts against the tensioning wheels, and the inner surface of the conveyor belt abuts against the driving wheel 19.

Further, there is also a platform carrying surface, typically external to the forks, which is connected to the load transfer system, the carrying surface of the conveyor belt being maintained at the same level as the carrying surface external to the support frame in order for load to be able to be transferred generally into the interior of the forks.

Working state of each mechanism when fork works

The working state of the fork can be divided into parts according to the position of the goods, 1, the outward extending fork 40 extends out of the fork mechanism 5 in the first direction, the outward extending fork 40 rotates for 90 degrees to draw in the goods 102 partially, at the moment, the goods conveying device and the outward trial fork act together to draw the goods into the fork, and the resistance force applied by the outward extending fork is obviously smaller than that of the existing fork. 2. When the goods enter the fork, the goods are conveyed by the goods conveying device, and the outward extending fork is free from resistance. 3. The outriggers extend in a second direction to carry the load out of the forks, and the load carrying device cooperates with the outriggers to carry the load out of the forks, wherein the outrigger resistance is substantially the same as when the load is being pulled in.

The structure and the connection relationship between the structures have at least the following technical effects:

1. the fork and the conveyor cooperation can reduce the wearing and tearing to overhanging fork and be favorable to prolonging the life of fork.

2. The conveying device can improve the maximum load capacity of the pallet fork under the combined action of the pallet fork.

Claims

1. A pallet fork comprises a pallet fork supporting frame, wherein the pallet fork supporting frame comprises a cargo bearing surface arranged at the bottom and fixed arms arranged on two sides of the bearing surface; the fixed arm is provided with an outward extending fork, two ends of the outward extending fork comprise shifting fork mechanisms used for driving goods, and the outward extending fork is connected with an outward extending fork driving mechanism; the device is characterized in that the cargo bearing surface is a cargo bearing surface of a cargo conveying device, and the cargo conveying device is connected with a driving device capable of keeping the cargo conveying speed the same as the moving speed of the outward extending fork.

2. A pallet fork as claimed in claim 1, wherein said load transfer device is a belt conveyor comprising a conveyor belt, a pair of reversing wheels mounted at opposite ends of the conveyor belt, and a drive wheel coupled to said drive device.

3. A pallet fork as claimed in claim 2, wherein said drive means comprises a drive motor, a universal drive shaft, a speed controller; the driving motor is connected with a universal transmission shaft, and the universal transmission shaft is connected with a driving wheel; the rotating speed controller is electrically connected with the motor.

4. A pallet fork as claimed in claim 2 or 3, wherein tension pulleys are provided on either side of said drive wheel, the outer surface of said belt abutting against said tension pulleys and the inner surface of said belt abutting against said drive wheel.

5. A fork as claimed in claim 2, wherein the loading surface of the conveyor belt is maintained at the same level as the outer bearing surface of the support frame.

6. A fork as claimed in claim 3, wherein the speed controller is also electrically connected to the motor of the outrigger drive mechanism.

7. The pallet fork of claim 1, wherein said outrigger forks comprise a first outrigger fork and a second outrigger fork, said first outrigger fork slidably mounted on a second section of outrigger fork; the fixed arm is provided with a sliding rail, and the second section of the outer extending fork is slidably arranged on the sliding rail.

8. The fork of claim 7, wherein the track is a roller track.