Gantry crane type forklift

Abstract

A gantry crane type forklift comprises a gantry frame, a lifting mechanism and a lifting mechanism, the transverse moving frame is mounted at the top of the portal frame; the lifting driving mechanism is mounted in the transverse moving frame; the rotary driving mechanism is mounted at the bottom of the lifting driving mechanism; the L-shaped hanging bracket is fixedly mounted on the rotary driving mechanism; the pallet fork is connected to the vertical frame of the L-shaped hanging bracket through a pitching fine adjustment mechanism; and the four liftable clamping jaws are connected to the transverse frame in a square shape. According to the gantry crane type forklift, a tray can be forked, the directions of the pallet fork and the tray can be adjusted by rotating on the portal frame in situ, and the inclination angles of the pallet fork and the tray on the pallet fork can be controlled through the pitching fine adjustment mechanism after the pallet fork is forked, so that the tray is kept horizontal; meanwhile, the clamping jaw can be lowered to clamp the steel drum on the tray, and then the steel drum is released, so that the position of the goods on the tray can be finely adjusted, and the tray and the goods on the tray are kept consistent after being stacked.

Description

Technical Field

[0001] The utility model relates to the technical field of transportation, in particular to a gantry crane type forklift. Background Art

[0002] Lifting trolleys are commonly used for transferring cargo, but they require manual adjustment when lifting and transferring cargo. Furthermore, they are typically not capable of lifting cargo on pallets, which can only be transferred using forklifts or roller conveyors. Therefore, lifting trolleys are not typically used to transfer palletized cargo.

[0003] However, commonly used forklifts are wheeled and motor-type, requiring manual operation to lift the pallet and its load. After lifting the load, the pallet must be released. Lifting and releasing typically occur in different positions and directions, requiring space for the forklift's rotational maneuverability. Furthermore, manual operation of the forklift is inefficient, and accuracy relies entirely on the operator's experience. Operator errors can easily lead to misaligned pallet stacking.

[0004] When a pallet is lifted by a forklift, the pallet and its cargo exert pressure on the forklift's tines, causing them to tilt due to unilateral force. Conventional forklifts use a cylinder-controlled tilting mechanism to control the tilt angle of the tines. However, the cylinder and tilting mechanism are large in size, occupying a large amount of equipment space, and cannot achieve fine-tuning of the tilt angle. Utility Model Content

[0005] In order to solve the problems existing in the prior art, the utility model provides a gantry crane forklift to solve the problem of cargo displacement caused by the tilting of the pallet when transferring cargo carried on the pallet between different conveying platforms.

[0006] To achieve the above objectives, the following technical solutions are provided:

[0007] A gantry crane forklift, comprising:

[0008] The gantry has a roller structure at the bottom, and the roller structure can be driven by a motor;

[0009] The transverse frame is installed on the top of the gantry and can move laterally along the gantry;

[0010] The lifting drive mechanism is installed in the transverse frame and can vertically drive the bottom components;

[0011] The rotary drive mechanism is installed at the bottom of the lifting drive mechanism and can be driven in a rotary manner;

[0012] An L-shaped hanger is fixedly mounted on the rotary drive mechanism and can rotate synchronously with the rotary drive mechanism. The L-shaped hanger includes a horizontal frame at the top and a vertical frame at the side. The horizontal frame and the vertical frame are connected to form an L shape.

[0013] The fork is connected to the vertical frame of the L-shaped hanger through a pitch fine-tuning mechanism, and the fork is located directly below the horizontal frame;

[0014] There are four liftable clamping claws connected to the cross frame in the form of a regular quadrilateral. The four clamping claws are located directly above the forks and a distance is kept between them.

[0015] The transverse moving frame is a square frame structure with a hollow middle part for installation with the lifting drive mechanism.

[0016] The transverse frame is connected to the gantry in a composite manner, specifically, one side is connected to the gantry by a linear guide rail, and the other side is connected to the gantry by a roller or rack. A slider is provided on the linear guide rail; the gear on the roller or rack is driven by a motor.

[0017] The lifting drive mechanism adopts a combination of tracks and other drive structures, including chain drive, belt drive, cylinder drive, and screw drive.

[0018] The rotary drive mechanism includes a turntable, a pinion and a drive motor, wherein the drive motor is fixedly installed at the bottom of the lifting drive mechanism, the drive motor drives the pinion, the pinion engages with the turntable for transmission, and the turntable is rotatably connected to the bottom of the lifting drive mechanism.

[0019] The pitch fine-tuning mechanism adopts a dual-axis structure, in which one axis is a conventional rotating shaft structure and the other axis is a camshaft structure. The dual-axis structure is arranged in an upper and lower manner. The inclination angle of the fork is controlled by controlling the rotation of the camshaft structure. The camshaft is driven by an independent motor and a reducer, and neither the motor nor the reducer protrudes from the working surface of the fork.

[0020] The motor and reducer adopt an integrated structural layout.

[0021] An imaging device is also provided at the bottom center of the lifting drive mechanism, and is used for shooting images downwards.

[0022] The imaging device is connected to the bottom of the lifting drive mechanism in a vertical telescopic manner, so that the imaging device can be telescoped downward to avoid structures such as the clamping claw interfering with image capture.

[0023] Each clamping jaw is connected to the cross frame through a lifting cylinder.

[0024] Compared with the prior art, the advantages of the present invention are as follows:

[0025] The utility model provides a gantry crane type forklift, which can lift a pallet and rotate the gantry frame in place to adjust the directions of the forks and the pallet. After the forks are lifted, the inclination angle of the forks and the pallet on them can be controlled by a pitch fine-tuning mechanism to keep the pallet level. At the same time, the clamping claws can be lowered to clamp the steel drums on the pallet and then released, so that the position of the goods on the pallet can be fine-tuned to keep the pallet and the goods on it consistent after stacking. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic structural diagram of the gantry crane forklift described in the utility model;

[0027] Figure 2 This is a schematic structural diagram of the gantry crane forklift described in the utility model;

[0028] Figure 3 This is a schematic structural diagram of the gantry crane forklift described in the present invention (the gantry frame is omitted);

[0029] Figure 4 This is a schematic structural diagram of the gantry crane forklift described in the present invention (the gantry frame is omitted);

[0030] Figure 5 This is a schematic diagram of the structure of the gantry crane forklift described in the utility model when viewed from above (the gantry frame is omitted);

[0031] Figure 6 This is a schematic structural diagram of the cargo fork of the present utility model;

[0032] Figure 7 This is a schematic structural diagram of the fork of the utility model;

[0033] Figure 8 It is a structural schematic diagram of the cargo fork described in the utility model.

[0034] In the picture:

[0035] 10-Gantry; 20-Transverse frame; 30-Lifting drive mechanism; 40-Slewing drive mechanism; 50-L-shaped hanger; 51-Horizontal frame; 52-Vertical frame; 60-Fork; 70-Gripper; 80-Lifting cylinder; 90-Cargo. DETAILED DESCRIPTION

[0036] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0037] Example

[0038] like Figure 1-8 As shown, the utility model provides a gantry crane forklift, comprising:

[0039] The gantry 10 has a roller structure at the bottom, and the roller structure can be driven by a motor. During the use of the gantry 10, a track needs to be designed, and the roller structure is set on the track so that the gantry can move back and forth along the track;

[0040] The transverse frame 20 is installed on the top of the gantry 10 and can move laterally along the gantry 10. The transverse frame 20 is the main load-bearing carrier and is responsible for controlling the lateral displacement. The transverse frame 20 drives the entire forklift to make lateral adjustments by moving laterally. In order to enable the transverse frame 20 to move laterally along the gantry 10 better, the top of the gantry is designed to be hollow, and no load-bearing beams are set on both sides for the reciprocating movement of the transverse frame 20;

[0041] The lifting drive mechanism 30 is installed in the traverse frame 20 and can vertically drive the bottom components;

[0042] The rotary drive mechanism 40 is mounted at the bottom of the lifting drive mechanism 30 and is capable of rotary drive. The axis of the rotary drive is in the vertical direction and passes through the geometric center of the transverse frame 20.

[0043] The L-shaped hanger 50 is fixedly mounted on the rotary drive mechanism 40 and can rotate synchronously with the rotary drive mechanism 40. The L-shaped hanger includes a horizontal frame 51 at the top and a vertical frame 52 at the side. The horizontal frame 51 and the vertical frame 52 are connected to form an L shape. The vertical frame 52 extends downward to provide installation space for the fork 60. The vertical frame 50 of the L-shaped hanger 50 is subjected to downward tension, while the horizontal frame 51 remains horizontal, providing a horizontal support for the clamping jaw 70.

[0044] The fork 60 is connected to the vertical frame of the L-shaped hanger through a pitch fine-tuning mechanism, and the fork is located directly below the horizontal frame 20;

[0045] There are four liftable clamping claws 70 connected to the cross frame in the form of a regular quadrilateral. The four clamping claws are located directly above the forks and a distance is reserved between the forks to provide loading space for the goods 90. The clamping claws 70 are vertically aligned with the forks below, so that after the forks lift the goods, the clamping claws 70 can reach down and clamp the top of the goods (steel drum), and then the lifting and lowering of the steel drum can be achieved through the lifting cylinder 80, thereby achieving the purpose of adjusting the steel drum.

[0046] The transverse moving frame 20 is a square frame structure with a hollow center for installation with the lifting drive mechanism 30 .

[0047] The transverse frame 20 is connected to the gantry 10 in a composite manner, specifically by a linear guide rail ( Figure 3-4 The left side of the middle lateral frame 20 is lowered to show a slider, which is connected to the gantry with a linear guide rail, and the other side is connected to the gantry with a roller or rack, wherein a slider is provided on the linear guide rail; the gear on the roller or rack is driven by a motor. Figure 3 The sliding block of the transverse frame 20 is shown to have a gear structure on the inner side, and the gear structure is engaged with the rack for driving. Other methods can also be used to replace it during implementation.

[0048] The lifting drive mechanism 30 adopts a combination of rails and other drive structures, including chain drive, belt drive, cylinder drive, and screw drive.

[0049] like Figure 3-4 As shown, the rotary drive mechanism 40 includes a turntable, a pinion and a drive motor, wherein the drive motor is fixedly installed at the bottom of the lifting drive mechanism, the drive motor drives the pinion, the pinion engages with the turntable for transmission, and the turntable is rotatably connected to the bottom of the lifting drive mechanism.

[0050] like Figure 6-8 As shown, the pitch fine-tuning mechanism adopts a dual-axis structure, one of which is a conventional rotating shaft structure and the other is a camshaft structure. The dual-axis structure is arranged in an upper and lower manner, and the inclination angle of the fork is controlled by controlling the rotation of the camshaft structure; the camshaft is driven by an independent motor and a reducer, and neither the motor nor the reducer protrudes from the working surface of the fork.

[0051] The motor and reducer adopt an integrated structural layout (the figure shows an L-shaped motor and reducer integrated structure).

[0052] An imaging device is also provided at the bottom center of the lifting drive mechanism, and is used for shooting images downwards.

[0053] The imaging device is connected to the bottom of the lifting drive mechanism in a vertical telescopic manner, so that the imaging device can be telescoped downward to avoid structures such as the clamping claw interfering with image capture.

[0054] The imaging device can also be arranged on the crossbeam of the gantry 10 to avoid interference from the clamping claws.

[0055] Each clamping jaw is connected to the cross frame via a lifting cylinder 80.

[0056] Compared with the prior art, the advantages of the present invention are as follows:

[0057] The utility model provides a gantry crane type forklift, which can lift a pallet and rotate the gantry frame in place to adjust the directions of the forks and the pallet. After the forks are lifted, the inclination angle of the forks and the pallet on them can be controlled by a pitch fine-tuning mechanism to keep the pallet level. At the same time, the clamping claws can be lowered to clamp the steel drums on the pallet and then released, so that the position of the goods on the pallet can be fine-tuned to keep the pallet and the goods on it consistent after stacking.

[0058] Note that the above are merely preferred embodiments of the present invention and the technical principles employed. Those skilled in the art will appreciate that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments, and substitutions are possible for those skilled in the art without departing from the scope of protection of the present invention. Therefore, while the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments and may include many other equivalent embodiments without departing from the scope of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. A gantry crane forklift, characterized in that: include: The gantry has a roller structure at the bottom, and the roller structure can be driven by a motor; The transverse frame is installed on the top of the gantry and can move laterally along the gantry; The lifting drive mechanism is installed in the transverse frame and can vertically drive the bottom components; The rotary drive mechanism is installed at the bottom of the lifting drive mechanism and can be driven in a rotary manner; An L-shaped hanger is fixedly mounted on the rotary drive mechanism and can rotate synchronously with the rotary drive mechanism. The L-shaped hanger includes a horizontal frame at the top and a vertical frame at the side. The horizontal frame and the vertical frame are connected to form an L shape. The fork is connected to the vertical frame of the L-shaped hanger through a pitch fine-tuning mechanism, and the fork is located directly below the horizontal frame; There are four liftable clamping claws connected to the cross frame in the form of a regular quadrilateral. The four clamping claws are located directly above the forks and a distance is kept between them.

2. The gantry forklift according to claim 1, characterized in that: The transverse moving frame is a square frame structure with a hollow middle part for installation with the lifting drive mechanism.

3. The gantry forklift according to claim 2, characterized in that: The transverse frame is connected to the gantry in a composite manner, specifically, one side is connected to the gantry by a linear guide rail, and the other side is connected to the gantry by a roller or rack. A slider is provided on the linear guide rail; the gear on the roller or rack is driven by a motor.

4. The gantry forklift according to claim 1, characterized in that: The lifting drive mechanism adopts a combination of tracks and other drive structures, including chain drive, belt drive, cylinder drive, and screw drive.

5. The gantry forklift according to claim 1, characterized in that: The rotary drive mechanism includes a turntable, a pinion and a drive motor, wherein the drive motor is fixedly installed at the bottom of the lifting drive mechanism, the drive motor drives the pinion, the pinion engages with the turntable for transmission, and the turntable is rotatably connected to the bottom of the lifting drive mechanism.

6. The gantry forklift according to claim 1, characterized in that: The pitch fine-tuning mechanism adopts a dual-axis structure, in which one axis is a conventional rotating shaft structure and the other axis is a camshaft structure. The dual-axis structure is arranged in an upper and lower manner. The inclination angle of the fork is controlled by controlling the rotation of the camshaft structure. The camshaft is driven by an independent motor and a reducer, and neither the motor nor the reducer protrudes from the working surface of the fork.

7. The gantry forklift according to claim 6, characterized in that: The motor and reducer adopt an integrated structural layout.

8. The gantry forklift according to claim 1, characterized in that: An imaging device is also provided at the bottom center of the lifting drive mechanism, and is used for shooting images downwards.

9. The gantry crane forklift according to claim 8, characterized in that: The imaging device is connected to the bottom of the lifting drive mechanism in a vertical telescopic manner, so that the imaging device can be telescoped downward to avoid structures such as the clamping claw interfering with image capture.

10. The gantry forklift according to claim 1, characterized in that: Each clamping jaw is connected to the cross frame through a lifting cylinder.

Images