Automatic pallet dumping prevention device and forklift

Abstract

The present invention discloses an automatic pallet dumping prevention device and a forklift, wherein the forklift comprises a body, two fixed fork arms are arranged in parallel on the front side of the body, a rotating arm is arranged on both sides of the fixed fork arm, and the rotating arm can rotate in the plane of the fixed fork arm by being driven by a servo drive mechanism, the two rotating arms are symmetrically arranged, and the distance between the outer sides of the two rotating arms is smaller than the width of the forklift and larger than the distance between the outer sides of the two fixed fork arms. The automatic pallet dumping prevention device of the present invention increases the stability of the forklift, and well solves the problem of being applicable to wide and narrow pallets without changing the width of the AGV forklift body. The maximum width of the auxiliary fork formed reaches 2500 mm, which completely eliminates the problem of pallet dumping.

Description

Technical Field

[0001] The invention relates to the technical field of forklifts, and in particular to an automatic pallet anti-dumping device and a forklift. Background Art

[0002] The standard outer width of existing forklifts is about 700 mm, and the corresponding standard pallet width is within 1200 mm. However, in order to transport goods more efficiently, the width of pallets is constantly widening, reaching 3 meters. When using the fork width of existing forklifts to pick up 3-meter-wide pallets, the pallets often fall over and the goods scatter during transportation. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide an automatic pallet dumping prevention device and a forklift, the improved structure of which is simple, but with the upper and lower clamps added, the goods will not fall during rotation, and the use is safer.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: an automatic anti-pallet dumping device for a forklift, wherein the forklift includes a body, two fixed fork arms are arranged in parallel on the front side of the body, and a rotating arm is arranged on both sides of the fixed fork arm. The rotating arm is driven by a servo drive mechanism to rotate within the plane of the fixed fork arm. The two rotating arms are symmetrically arranged, and the distance between the outer sides of the two rotating arms is smaller than the width of the forklift and larger than the distance between the outer sides of the two fixed fork arms.

[0005] Furthermore, in the automatic pallet anti-dumping device of the present invention, the length of the rotating arm is smaller than the length of the fixed fork arm.

[0006] Furthermore, in the automatic anti-pallet tipping device of the present invention, the swivel arm is fixedly connected to the forklift through a mounting structure, the mounting structure includes a fixed mounting plate and a swivel arm fixing plate fixedly connected to the fixed mounting plate, the swivel arm fixing seat is arranged on the swivel arm fixing plate, the swivel arm fixing seat includes an upper swivel arm seat and a lower swivel arm seat, the rotating shaft is arranged between the upper swivel arm seat and the lower swivel arm seat through a rolling bearing arranged in the swivel arm seat, a shaft sleeve is arranged outside the rotating shaft, the upper end of the rotating shaft is connected to the servo drive mechanism, the swivel arm is fixedly connected to the shaft sleeve, and the swivel arm and the shaft sleeve rotate together with the rotating shaft.

[0007] Furthermore, in the automatic pallet anti-dumping device of the present invention, the rotating arm fixing plate includes an upper fixing plate and a lower fixing plate, the rotating arm fixing plate is provided with a slot-shaped opening for the rotating shaft to pass through, and the rotating arm fixing seat is fixed to the outer side of the rotating arm fixing plate.

[0008] Furthermore, in the automatic pallet anti-dumping device of the present invention, a flange coupling is provided between the servo drive mechanism and the rotating shaft.

[0009] Furthermore, in the automatic pallet anti-dumping device of the present invention, the servo drive mechanism is connected to a reducer.

[0010] Furthermore, in the automatic pallet anti-dumping device of the present invention, the servo drive mechanism is connected to the reducer via a first flange coupling, and a second flange coupling is provided between the reducer and the rotating shaft.

[0011] Furthermore, in the automatic pallet anti-dumping device of the present invention, a cross slider is provided between the first flange coupling and the second flange coupling.

[0012] Furthermore, in the automatic pallet anti-dumping device of the present invention, the reducer includes a first flange coupling and a second flange coupling, and a cross slider is provided between the first flange coupling and the second flange coupling.

[0013] Furthermore, in the automatic anti-pallet tipping device of the present invention, a proximity switch mounting plate is installed on the fixed mounting plate, the proximity switch mounting plate is arranged below the rotating arm fixed plate in parallel and at a certain distance, a plurality of photoelectric sensors are arranged on the proximity switch mounting plate at intervals, the end of the rotating shaft is connected to a sensing plate, the sensing plate is in a straight line with the rotating arm and is arranged parallel to the proximity switch mounting plate.

[0014] Another object of the present invention is to provide a forklift, wherein the forklift is an AGV forklift and is provided with the above-mentioned automatic pallet anti-dumping device.

[0015] Beneficial effect: The automatic pallet dumping prevention device of the present invention increases the stability of the forklift and solves the problem of wide and narrow pallets without changing the width of the AGV forklift body. The maximum width of the auxiliary fork is 2500 mm, which completely eliminates the problem of pallet dumping.

[0016] Instruction Manual

[0017] Figure 1 , a schematic structural diagram of the automatic pallet anti-dumping device of the present invention.

[0018] Figure numerals: 1, fixed mounting plate, 2, swivel arm fixing plate, 3, upper swivel arm seat, 5, rolling bearing, 5, lower swivel arm seat, 6, rotating shaft, 7, swivel arm, 8, first flange coupling, 9, second flange coupling, 10, cross slider, 11, servo drive mechanism, 12, reducer, 13, proximity switch mounting plate, 14, photoelectric sensor, 15, induction sheet. DETAILED DESCRIPTION

[0019] The anti-tip-overturning device for a pallet of the present invention is described in detail below with reference to the accompanying drawings.

[0020] like Figure 1 As shown, an automatic pallet dump prevention device is used for a forklift, the forklift includes a body, two fixed fork arms are arranged in parallel on the front side of the body, and a rotating arm is arranged on both sides of the fixed fork arm. The rotating arm can rotate in the plane of the fixed fork arm by driving the servo drive mechanism 11. The two rotating arms are symmetrically arranged, and the distance between the outer sides of the two rotating arms is smaller than the width of the forklift and larger than the distance between the outer sides of the two fixed fork arms. When it is necessary to fork a wide pallet, the rotating arm is driven by the servo drive mechanism 11 (servo motor) to expand to form an auxiliary fork width. When forking a narrow pallet, the rotating arm is folded and parallel to the fixed fork arm or against the outer side of the fixed fork arm to avoid interference.

[0021] Furthermore, in the automatic pallet tipping prevention device of the present invention, the length of the rotating arm is smaller than the length of the fixed fork arm, thereby further avoiding interference.

[0022] Furthermore, in the automatic pallet dumping prevention device of the present invention, the rotating arm is fixedly connected to the forklift through a mounting structure, the mounting structure includes a fixed mounting plate 1 and a rotating arm fixing plate 2 fixedly connected to the fixed mounting plate 1, the rotating arm fixing seat is arranged on the rotating arm fixing plate 2, the rotating arm fixing seat includes an upper rotating arm seat 3 and a lower rotating arm seat 5, the rotating shaft 6 is arranged between the upper rotating arm seat 3 and the lower rotating arm seat 5 through a rolling bearing 4 arranged in the rotating arm seat, a shaft sleeve is arranged outside the rotating shaft 6, the upper end of the rotating shaft 6 is connected to the servo drive mechanism 11, the rotating arm is fixedly connected to the shaft sleeve, and the rotating arm and the shaft sleeve rotate together with the rotating shaft 6. Through this structure, the actions of the servo drive mechanism 11, the rotating shaft 6 and the rotating arm are smoother and more stable.

[0023] Furthermore, in the automatic anti-pallet tipping device of the present invention, the rotating arm fixing plate 2 includes an upper fixing plate and a lower fixing plate, the rotating arm fixing plate 2 is provided with a slot-shaped opening for the rotating shaft 6 to pass through, and the rotating arm fixing seat is fixed to the outer side of the rotating arm fixing plate 2.

[0024] Furthermore, in the automatic pallet anti-dumping device of the present invention, the servo drive mechanism is connected to a reducer 12 .

[0025] Furthermore, in the automatic pallet anti-dumping device of the present invention, the servo drive mechanism 11 is connected to the reducer 12 via a first flange coupling 8 , and a second flange coupling 9 is provided between the reducer 12 and the rotating shaft 6 .

[0026] Furthermore, in the automatic pallet anti-dumping device of the present invention, a cross slide block 10 is provided between the first flange coupling 8 and the second flange coupling 9 .

[0027] Furthermore, in the automatic anti-pallet dumping device of the present invention, a proximity switch mounting plate 13 is mounted on the fixed mounting plate 1, and the proximity switch mounting plate 13 is arranged below the rotating arm fixed plate 2 in parallel and at a certain distance, and a plurality of photoelectric sensors 14 are arranged at intervals on the proximity switch mounting plate 13, and the end of the rotating shaft 6 is connected to a sensing sheet 15, and the sensing sheet 15 is in line with the rotating arm and is arranged parallel to the proximity switch mounting plate 13. The size of the pallet is detected by the photoelectric sensor 14, and the rotating arm is opened in sequence by the servo drive mechanism 11 to form the required auxiliary fork width.

[0028] Beneficial effect: The automatic pallet dumping prevention device of the present invention increases the rotating arm and the servo drive mechanism 11. When the AGV recognizes that the pallet is of wide size, the servo drive mechanism 11 will open the rotating arm in sequence to prevent the pallet from dumping and causing the goods to scatter, affecting the normal logistics order, and completely eliminating the problem of pallet dumping. The automatic pallet dumping prevention device of the present invention increases the stability of the forklift, and solves the problem of being applicable to wide and narrow pallets without changing the width of the AGV forklift body. The maximum width of the auxiliary fork formed reaches 2500 mm, which completely eliminates the problem of pallet dumping.

Claims

1. An automatic pallet dumping prevention device for a forklift, characterized in that: The forklift comprises a vehicle body, two fixed fork arms are arranged in parallel on the front side of the vehicle body, a rotating arm is arranged on both sides of the fixed fork arms respectively, the rotating arms are driven by a servo drive mechanism to rotate in the plane of the fixed fork arms, the two rotating arms are arranged symmetrically, and the distance between the outer sides of the two rotating arms is smaller than the width of the forklift and larger than the distance between the outer sides of the two fixed fork arms; The length of the rotating arm is less than the length of the fixed fork arm; The swing arm is fixedly connected to the forklift through a mounting structure, the mounting structure includes a fixed mounting plate and a swing arm fixing plate fixedly connected to the fixed mounting plate, the swing arm fixing seat is arranged on the swing arm fixing plate, the swing arm fixing seat includes an upper swing arm seat, a lower swing arm seat and a rotating shaft, the rotating shaft is arranged between the upper swing arm seat and the lower swing arm seat through a rolling bearing arranged in the swing arm seat, a shaft sleeve is arranged outside the rotating shaft, the upper end of the rotating shaft is connected to the servo drive mechanism, the swing arm is fixedly connected to the shaft sleeve, and the swing arm and the shaft sleeve rotate together with the rotating shaft; A cross slide is arranged between the first flange coupling and the second flange coupling; A proximity switch mounting plate is installed on the fixed mounting plate, and the proximity switch mounting plate is arranged parallel to and at a certain distance below the rotating arm fixed plate. A plurality of photoelectric sensors are arranged at intervals on the proximity switch mounting plate, and the end of the rotating shaft is connected to a sensing sheet, and the sensing sheet is in a straight line with the rotating arm and is arranged parallel to the proximity switch mounting plate.

2. The automatic anti-tip-overturning device of claim 1, characterized in that: The rotating arm fixing plate comprises an upper fixing plate and a lower fixing plate. The rotating arm fixing plates are each provided with a slot-shaped opening for the rotating shaft to pass through. The rotating arm fixing seat is fixed to the outer side of the rotating arm fixing plate.

3. The automatic anti-tip-overturning device of claim 2, characterized in that: The servo drive mechanism is connected with a reducer.

4. The automatic anti-tip-overturning device of claim 3, characterized in that: The servo drive mechanism is connected to the reducer via a first flange coupling, and a second flange coupling is provided between the reducer and the rotating shaft.

5. A forklift, characterized in that: The forklift is an AGV forklift, and the forklift is provided with the automatic pallet anti-dumping device according to any one of claims 1 to 4.

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