CN107434228A - A backpack forklift - Google Patents

Abstract

The utility model provides a backpack forklift, which comprises a vehicle rack, running gear has been installed to the frame bottom surface, built-in pusher and the electrical system of being equipped with of frame, the frame facial make-up is equipped with lifting device, this lifting device is connected with pushing device, electrical system respectively with running gear, pusher and lifting device are connected, be equipped with the sliding tray in the frame, pushing device and lifting device all establish in this sliding tray, running gear includes the top cap, the truckle, drive assembly and truckle frame, truckle and drive assembly dress are on the truckle frame, drive assembly is connected with the truckle frame and drives this truckle frame rotation, truckle frame up end connects with the top cap dress through the flange, top cap and frame fixed mounting, four corner regions of frame respectively set up a running gear. The invention has the advantages of automatic and intelligent operation, reduced volume of the forklift, applicability to various moving channels, flexible movement and good trafficability.

Description

A backpack forklift

technical field

The invention relates to the technical field of forklifts, in particular to an automatic knapsack forklift.

Background technique

As we all know, a forklift is an efficient unloading and loading device. The goods are placed on the fork, and the position of the goods is changed by lifting up and down and moving the position of the car body.

At present, in the field of automated forklifts, there are three types of forklifts. One is a common stacker, that is, the fork and fork legs are very short, and the fork penetrates into the bottom of the goods to lift the goods; The head counterweight, the fork enters the bottom of the goods to lift the goods; the last one has relatively high fork legs, and the fork is between the two fork legs. For the first type above, because the fork legs are hidden under the fork, the height of the chassis from the ground is very low, so it can only walk on flat ground and cannot pass the speed bump; the second type has no fork legs, but needs to be counterweighted on the tractor. The curb quality is very high, but there are problems such as high energy consumption and great damage to the ground; the last type of forklift, the chassis can be designed to be very high from the ground, and there is no need for tractor counterweight, but because the fork legs are on the outside of the fork, it makes When laying out the load, you need to leave a lot of space to accommodate the fork legs on both sides of the fork. Poor space utilization. To sum up, we propose a forklift with telescopic lifting forks. Its fork can be retracted and lifted. After lifting the goods and putting them on the body, the fork legs are retracted into the belly of the car from the ground. Goods are packed tightly. In addition, because the fork legs can be retracted from the ground, the whole vehicle can be designed to move in all directions, which can reduce the turning radius of traditional forklifts, reduce aisle space, and improve space utilization.

Contents of the invention

The technical problem to be solved by the present invention is to provide a knapsack forklift,

In order to solve the above technical problems, the present invention takes the following technical solutions:

A knapsack forklift, comprising a vehicle frame, a running device is installed on the bottom surface of the vehicle frame, a pushing device and an electric control system are installed in the vehicle frame, a lifting device is installed on the vehicle frame, and the lifting device is connected with the pushing device , the electric control system is respectively connected with the traveling device, the pushing device and the lifting device, the frame is provided with a sliding groove, and the pushing device and the lifting device are all arranged in the sliding groove.

The pushing device includes a feed motor and a slide block, the feed motor is installed on the slide block, the side wall of the slide block is provided with rollers, the rollers are equipped with rollers, and the rollers are attached to the surface of the slide plate arranged on the vehicle frame , the feed motor is installed and connected with the vehicle frame through the transmission mechanism, the transmission of the feed motor through the transmission mechanism makes the sliding block slide directionally, and the lifting device is connected to the sliding block.

The transmission mechanism includes a rotating shaft and a synchronous belt. The rotating shaft is installed on the lower part of the slide through a bearing. A driven wheel is set on the rotating shaft. A driving wheel is installed on the driving shaft of the feed motor. The driving wheel is connected with the driven wheel through a belt. The set is equipped with a transmission wheel, and the two sides of the transmission wheel are respectively equipped with pressure rollers installed on the side wall of the sliding block. The two ends of the synchronous belt are respectively fixed on both sides of the vehicle frame. Pass between the surface of the frame, the pressure roller is pressed against the timing belt, and the lifting device is installed and connected with the sliding block.

Rolling bearings are also installed on the sliding block.

The lifting device is an electric stacker forklift.

The vehicle frame is provided with a support frame, the support frame is provided with a limit block, and the support frame is located at the back of the electric stacker forklift.

The vehicle frame is also provided with a laser navigation module and a laser anti-collision module connected with the electronic control system.

There are at least two walking devices.

The running device includes a steering wheel drive assembly and a steering mechanism. The steering mechanism includes a motor arranged on the vehicle frame, and the motor is connected with the steering wheel drive assembly through a bevel gear transmission.

The invention can retract and extend the cargo fork, effectively reduces the overall volume, has better passability, and can freely enter and exit in some relatively narrow spaces. In addition, the independently controlled four traveling devices can perform all-round steering and movement, making the control more flexible.

Description of drawings

Accompanying drawing 1 is the three-dimensional structure schematic diagram of the present invention;

Accompanying drawing 2 is the partial three-dimensional schematic diagram of walking device among the present invention;

Accompanying drawing 3 is the three-dimensional structure schematic diagram of pushing device among the present invention;

Accompanying drawing 4 is a schematic diagram of Embodiment 1 of the lifting device in the present invention;

Accompanying drawing 5 is the schematic diagram of Embodiment 2 of the lifting device in the present invention.

detailed description

In order to further understand the features, technical means, and specific objectives and functions achieved by the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

As shown in accompanying drawing 1, the present invention discloses a kind of knapsack forklift, comprises vehicle frame, and described vehicle frame 1 bottom surface is equipped with traveling device, and vehicle frame 1 is equipped with pushing device and electronic control system, and vehicle frame 1 is equipped with A lifting device is provided, the lifting device is connected with the pushing device, the electric control system is respectively connected with the traveling device, the pushing device and the lifting device, a slide groove 6 is arranged in the vehicle frame 1, and the pushing device and the lifting device are all located in the in the sliding slot. The pushing device moves back and forth along the length direction of the sliding groove in the sliding groove, thereby driving the lifting device to extend and retract. When it is extended, it is easy to insert and take out the goods, and when it is retracted, it can reduce the volume and increase the passability. The electronic control system controls each device to realize the fork picking and accurate walking of the vehicle.

As shown in accompanying drawing 1 and 3, described pushing device comprises feed motor 31 and slide block 32, and feed motor 31 is installed on slide block 32, and slide block 32 side walls are equipped with roller, and roller is housed on this roller 33. The roller 33 is attached to the surface 34 of the sliding board provided on the vehicle frame 1. The feed motor 31 is installed and connected to the vehicle frame 1 through the transmission mechanism. The transmission of the feed motor through the transmission mechanism makes the sliding block slide directionally, and the lifting device Attached to slider.

Described transmission mechanism comprises rotating shaft and synchronous belt 35, and rotating shaft is installed on sliding block 32 bottoms by bearing, and driven wheel is sleeved on this rotating shaft, and driving wheel 39 is installed on the driving shaft of feed motor 21, and driving wheel 39 is connected with driven wheel by belt. The driving wheel is connected, and a transmission wheel 36 is also set on the rotating shaft. The two sides of the transmission wheel 36 are respectively provided with pressure rollers 37 installed on the side walls of the sliding block 32, and the two ends of the synchronous belt 35 are respectively fixed on both sides of the vehicle frame. The belt passes between the pressure roller and the surface of the vehicle frame after passing around the transmission wheel, the pressure roller 37 presses against the synchronous belt 35, and the lifting device is installed and connected with the slide block 32. The sliding block 32 is also equipped with rolling bearings 38, which are usually arranged on the four corners of the sliding block. The rolling bearings are in contact with the side walls of the sliding plate to play the role of limiting and rolling, and cooperate with the role of the rollers and rolling bearings, so that The sliding block moves smoothly and accurately in the sliding groove of the frame. The sliding board is fixedly installed on the vehicle frame. The feed motor drives the driving wheel to rotate, and the driving wheel drives the driven wheel to rotate through the belt, which makes the rotation, and then makes the transmission wheel rotate. Since the two ends of the synchronous belt are fixed, therefore, with the continuous rotation of the transmission wheel, by means of the sliding of the roller and the rolling bearing , to realize the back and forth movement of the sliding block in the sliding groove of the vehicle frame, while the sliding block moves, it also drives the lifting device to move.

As shown in accompanying drawings 1 and 2, at least two walking devices are provided to ensure that they can move in all directions. The running device includes a steering wheel drive assembly and a steering mechanism. The steering mechanism includes a motor arranged on the vehicle frame, and the motor is connected with the steering wheel drive assembly through a bevel gear transmission.

Specifically, the steering wheel drive assembly includes a top cover 21, a caster 22, a drive assembly 23 and a caster frame 24, the caster 22 and the drive assembly 23 are mounted on the caster frame 24, and the drive assembly 23 is connected with the caster 22 to drive the caster to rotate Rotate, the upper end surface of caster frame 24 is connected with top cover 21 by flange 25, and top cover 21 and vehicle frame 1 are fixedly installed, and four corner areas of vehicle frame are respectively provided with a walking device. A driven gear 27 is fixedly installed on the flange 25, and the driven gear 27 is connected with the top cover 21 through the rotating width. The upper end of the rotating width is equipped with a central transmission gear 28, and the driven gear 27 is meshed with a side transmission gear. 29, a central motor 201 and a side motor 202 are installed on the vehicle frame 1, the central transmission gear 28 is driven to rotate by the central motor 201 through a key connection, and the side transmission gear 29 is driven to rotate by the side motor 202 through a key connection. A limiting block 203 is also installed on the driven gear 27, and the limiting block 203 is fixedly connected with the top cover 21, and the travel range of the driven gear can be limited by the limiting block. The four traveling devices on the frame are independently controlled without interfering with each other, enabling more flexible steering and movement. The central motor and the side motors are the motors in the steering mechanism, and the central motor and the side motors are connected by bevel gears. Through the bevel gear transmission mechanism, the overall height is effectively reduced. The center motor and the side motor drive the driven gear to rotate to realize the steering of the caster, and the drive assembly is used to rotate the caster to realize the purpose of steering and movement, with a wider operating range and more flexible walking.

As shown in Figure 4, the lifting device is an electric stacker forklift, or other forms of electric forklift, which can realize the electric lifting of the forklift frame, and is used for forklifting and lifting goods, and there is no specific type limitation.

For example, an electric stacker forklift includes a sliding chassis 41, a cargo fork 43, a door frame 44 and a lifting drive mechanism, the sliding chassis 41 is provided with a pulley 42, the door frame 44 is connected to the sliding chassis 41, and the lifting drive mechanism is installed on the door frame , the fork 43 is connected with the fork frame 45, the fork frame 45 is connected with the lifting drive mechanism through the connecting frame 46, the connecting frame 46 is equipped with a pulley 47, the door frame 44 is provided with a slide rail, and the connecting frame 46 Pulley 47 is movably clamped in the slide rail, and the lifting drive mechanism drives the cargo fork to rise and fall. The sliding chassis can slide on the ground by means of pulleys. The forks can be raised and lowered to realize the insertion and placement of goods.

In addition, there are various structural forms for the lifting drive mechanism, and two preferred forms will be described in detail below.

As shown in accompanying drawing 4, described lifting drive mechanism comprises lifting motor 401 and screw mandrel 402, and screw mandrel 402 is arranged on the door frame 44, and the upper end of screw mandrel 44 and the lower end respectively are equipped with a pulley 403, and the lifting motor 401 A driving pulley 404 is installed on the driving shaft, and the driving pulley 404 is connected with the pulley 403 on the upper end of the screw mandrel 402 through a belt. The lifting motor drives the pulley on the drive shaft to rotate, and then drives the pulley on the screw rod to rotate through the belt, so that the screw rod rotates, and then drives the connecting frame to rise or fall along the guide rail of the door frame.

Perhaps the lifting drive mechanism is another kind of embodiment, as shown in accompanying drawing 5, described lifting drive mechanism comprises lifting motor 405, connecting belt 406 and lifting wheel 407, and lifting motor 405 is installed on door frame 44 bottoms, and lifting wheel 407 passes through The support 408 is connected with the drive shaft of the lifting motor 405, one end of the connecting belt 406 is connected with the connecting frame 46, and the other end is connected with the horizontal plate 409 fixedly installed on the door frame 44 after bypassing the lifting wheel 407. The lifting motor drives the drive shaft to extend and retract, thereby jacking up the support with the lifting wheels, and in the process of driving the lifting wheels to rise, the connection drives the connecting frame to rise. The vehicle frame 1 is provided with a support frame 410, and the support frame 410 is provided with a limit block 409, and the limit block extends into the mast. Through the limit block, when the lift motor drives the fork down to the bottom, the limit block blocks the bracket equipped with the lift wheel, and then the piston shaft of the lift motor continues to shrink, thereby driving the sliding chassis to rise and lift off The ground, thereby increasing the height of the chassis from the ground, so that the forklift has a larger longitudinal passing angle and improves the passing performance.

The vehicle frame is also provided with a laser navigation module and a laser anti-collision module connected with the electronic control system. The electronic control assembly generally includes a motor driver for driving each motor, a main controller, a power supply and charging management module, a guidance and positioning module, a communication module, a human-computer interaction device, etc., and each module is integrated and built into the electronic control system. The electronic control system is installed on the frame to realize the automatic operation of the car.

In the present invention, when the goods do not need to be inserted, the feed motor in the pushing device drives the sliding block to move in the sliding groove of the vehicle frame, so that the fork is completely retracted and stored in the sliding groove of the vehicle frame. When the goods need to be inserted and taken out, the pushing device drives the fork to extend out and insert it on the bottom surface of the goods, while the sliding chassis slides through the pulleys. Then the lifting device drives the fork to rise, so that the goods are lifted to a higher level. Then the pushing device retracts the fork, and after the fork is received in the slide groove, the goods are slowly lowered by the lifting device, and the goods will be placed on the car body first at this time. The lifting device continues to fully accommodate and shrink the fork and the sliding chassis in the sliding groove of the frame, reducing the volume of the vehicle and increasing the passability.

It should be noted that the above are only preferred embodiments of the present invention, and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art can still implement the foregoing Modifications to the technical solutions described in the examples, or equivalent replacements for some of the technical features, but within the spirit and principles of the present invention, any modifications, equivalent replacements, improvements, etc., shall be included in the protection of the present invention. within range.

Claims (9)

1. A knapsack forklift, comprising a vehicle frame, is characterized in that a running device is installed on the bottom surface of the vehicle frame, a pushing device and an electric control system are installed in the vehicle frame, and a lifting device is installed on the vehicle frame. The lifting device is connected with the pushing device, and the electric control system is respectively connected with the traveling device, the pushing device and the lifting device. A sliding groove is arranged in the vehicle frame, and the pushing device and the lifting device are all arranged in the sliding groove. 2. The knapsack forklift according to claim 1, wherein the pushing device comprises a feed motor and a slide block, the feed motor is mounted on the slide block, and the side wall of the slide block is provided with a roller, the roller There are rollers on the top, and the rollers are attached to the surface of the sliding board on the frame. The feed motor is installed and connected with the frame through the transmission mechanism. The transmission of the feed motor through the transmission mechanism makes the sliding block slide directionally. Attachment. 3. The knapsack forklift according to claim 2, characterized in that, the transmission mechanism includes a rotating shaft and a synchronous belt, the rotating shaft is installed on the sliding lower part through a bearing, the driven wheel is sleeved on the rotating shaft, and the drive shaft of the feed motor The driving wheel is installed, the driving wheel is connected with the driven wheel through the belt, and the driving wheel is also set on the rotating shaft. The two sides of the driving wheel are respectively equipped with pressure rollers installed on the side wall of the sliding block, and the two ends of the timing belt are respectively fixed on the frame. On both sides of the drive wheel, the synchronous belt passes between the pressure roller and the surface of the vehicle frame after bypassing the drive wheel, the pressure roller presses against the synchronous belt, and the lifting device is installed and connected with the sliding block. 4. The knapsack forklift according to claim 3, wherein a rolling bearing is also installed on the sliding block. 5. The backpack type forklift according to claim 4, wherein the lifting device is an electric stacker forklift. 6 . The knapsack forklift according to claim 5 , wherein a support frame is provided on the vehicle frame, a limit stop is provided on the support frame, and the support frame is located at the back of the electric stacker forklift. 7 . 7. The backpack type forklift according to claim 6, characterized in that, the frame is also provided with a laser navigation module and a laser anti-collision module connected with the electronic control system. 8. The backpack type forklift according to claim 7, characterized in that at least two traveling devices are provided. 9. The knapsack forklift according to claim 8, wherein the traveling device comprises a steering wheel drive assembly and a steering mechanism, the steering mechanism includes a motor arranged on the vehicle frame, and the motor communicates with the steering wheel through a bevel gear transmission. Drive assembly connection.