Intelligent forked lifting device

Abstract

This utility model discloses an intelligent forklift. It includes a limiting component and an anti-collision component. The anti-collision component prevents the L-shaped fork from rigidly colliding with the ground, ensuring stable contact between the fork and the ground without requiring the operator to visually estimate the distance. Furthermore, a photoelectric receiver and a light generator from a through-beam photoelectric switch are located at the bottom end of the L-shaped fork. When the receiver receives light emitted by the generator, it indicates that the end of the L-shaped fork has passed through the pallet of the goods, eliminating the need for the operator to visually estimate the insertion depth. This, combined with an automated control system, enables fully automated fork entry and transfer, effectively solving the problem of existing forklifts' inability to automatically lift goods and significantly improving transfer efficiency.

Description

Technical Field

[0001] This utility model relates to the field of forklift technology, and in particular to an intelligent forklift lifting device. Background Technology

[0002] As the core working device of a forklift, the forks are usually installed in pairs in an "L" shape, consisting of a vertical support section and a horizontal fork section. They require high-strength alloy steel (such as 40Cr, yield strength ≥500MPa) to ensure load-bearing capacity. However, traditional forklifts are inefficient in high-rise racking (dense storage systems above 10 meters) or long-distance transport scenarios due to limitations in mast lifting height (usually ≤6 meters) and aisle operating distance. To overcome this limitation, existing solutions introduce intelligent forklifts that work collaboratively with cranes: First, a factory overhead crane or truck-mounted crane transports the intelligent forklift to the initial position of the goods; the operator manually adjusts the gap between the forks and the bottom pallet of the goods (leaving a 15-25mm collision avoidance space); finally, the intelligent forklift and the goods are lifted to the target location by the lifting equipment.

[0003] While this method expands the range of vertical handling, it still relies on manual monitoring of the docking accuracy between the forks and the pallet. That is, the operator needs to visually judge the insertion depth of the forks and the distance between the forks and the ground, which cannot achieve automated forklift operation. Therefore, it is necessary to design an intelligent forklift to solve the above problems. Summary of the Invention

[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide an intelligent forklift.

[0005] This utility model provides an intelligent forklift lifting device, comprising:

[0006] The inverted L-shaped gantry is connected to the crane via a suspension mechanism at its top.

[0007] The forklift assembly is installed at the bottom of the inverted L-shaped mast via an anti-collision component. It includes two tracks arranged along a first direction, the extension direction of the tracks being a second direction, the first direction and the second direction being perpendicular to each other, and two L-shaped forks movable along the second direction are provided on the tracks. The anti-collision component is used to prevent the L-shaped forks from rigidly colliding with the ground.

[0008] The limiting component includes through-beam photoelectric switches located at the bottom ends of the two L-shaped forks, and two diffuse reflection limiting switches located at the bottom of the L-shaped forks close to each other. The diffuse reflection limiting switches are used to monitor the distance between the beam of the cargo pallet and the L-shaped forks. A photoelectric limiting switch is provided in the middle of the track, and the photoelectric limiting switch is used to monitor the distance between the L-shaped forks and the middle position of the track.

[0009] According to the technical solution provided in the embodiments of this application, an intermediate plate is provided between the two tracks. The photoelectric limit switch is installed on both ends of the top of the intermediate plate along the second direction. A lever-type limit switch is provided on the end face of the middle part of the intermediate plate near the bottom end of the L-shaped fork. A hinge plate is provided below the lever-type limit switch and is hingedly installed on the intermediate plate. The extension direction of the hinge axis of the hinge plate is the second direction. There is a first included angle between the hinge plate and the intermediate plate, and the opening of the first included angle faces upward.

[0010] According to the technical solution provided in the embodiments of this application, an installation plate is provided between the two ends of the two tracks along the first direction, and a second hydraulic telescoping device is installed on each of the two installation plates. An end plate is provided near the end of the inverted L-shaped gantry of the two L-shaped forks. The two second hydraulic telescoping devices are detachably connected to the two end plates respectively. A slider that fits with the track is provided at the top and bottom of the L-shaped fork near the end face of the inverted L-shaped gantry.

[0011] According to the technical solution provided in the embodiments of this application, the anti-collision component includes:

[0012] Floating plate;

[0013] The connecting part includes a first adjusting plate hinged to the bottom of the floating plate and a second adjusting plate hinged to the top of the floating plate. The ends of the first adjusting plate and the second adjusting plate away from the floating plate are both hinged to the inverted L-shaped gantry.

[0014] The limiting part is used to limit the range of movement of the floating plate along the first direction.

[0015] According to the technical solution provided in the embodiments of this application, the hoisting mechanism includes a slewing component, the slewing component includes a slewing drive connected to a rope of a crane, the slewing drive has a first axis, and the extension direction of the first axis is a first direction;

[0016] The bottom of the inner rotating body of the rotary drive is equipped with a swing assembly. The swing assembly includes a rotating shaft that is rotatably connected to the top of the inverted L-shaped gantry, and a driving part that drives the inverted L-shaped gantry to rotate around the rotating shaft. The axis of the rotating shaft extends perpendicularly to the first direction.

[0017] According to the technical solution provided in the embodiments of this application, the slewing assembly further includes an upper slewing frame connected to the slewing drive housing, and a plurality of rope wheels are evenly arranged at the top of the upper slewing frame.

[0018] According to the technical solution provided in the embodiments of this application, the swing assembly further includes a lower slewing frame, which has a first end and a second end. The top surface of the first end is provided with an upper connecting plate that is connected to the inner rotating body of the slewing drive. The bottom end of the first end is provided with the rotating shaft. The second end is hingedly connected with a first hydraulic telescopic device. The end of the inverted L-shaped gantry away from the rotating shaft is provided with a lower connecting plate. The end of the first hydraulic telescopic device away from the second end is hingedly connected to the lower connecting plate. The axial extension direction of each hinge axis of the first hydraulic telescopic device is parallel to the axial extension direction of the rotating shaft.

[0019] According to the technical solution provided in the embodiments of this application, the rotary drive is further provided with a second angle sensor, which is used to monitor the rotation angle of the rotary drive. The inverted L-shaped gantry is provided with a first angle sensor at the position corresponding to the rotation axis, which is used to monitor the swing angle of the inverted L-shaped gantry.

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] 1. Limiting and anti-collision components are installed. The anti-collision components prevent rigid collisions between the L-shaped fork and the ground, ensuring stable contact and eliminating the need for operators to visually assess the distance between the fork and the ground. Additionally, the light receiver and light generator of the through-beam photoelectric switch are located at the bottom end of the L-shaped fork. When the receiver receives light from the generator, it indicates that the end of the fork has passed through the pallet of the goods, eliminating the need for operators to visually assess the insertion depth. This, combined with an automated control system, enables fully automated fork entry and transfer, effectively solving the problem of existing lifting forks being unable to automatically load goods and significantly improving transfer efficiency. Furthermore, a push-button and hinge plate are included. When the through-beam photoelectric switch malfunctions, the goods press against the hinge plate, which in turn presses against the push-button, stopping the L-shaped fork from inserting and preventing collisions with the vertical part of the fork, thus improving operational safety.

[0022] 2. The second hydraulic telescopic device can drive the corresponding L-shaped fork to move along the track. The distance between the beam of the cargo pallet and the L-shaped fork is measured and monitored by a diffuse reflection limit switch. After the corresponding L-shaped fork has been in contact with the beam, the L-shaped fork stops moving. Then, a photoelectric limit switch is used to monitor the distance between the L-shaped fork and the middle position of the track, so that the two second hydraulic telescopic devices drive the two L-shaped forks to move synchronously and in the same direction, centering the cargo and ensuring that the two L-shaped forks are evenly stressed. In contrast, the existing technology uses two hydraulic telescopic cylinders to drive the two L-shaped forks to move synchronously closer to achieve the function of centering the cargo. The actual centering process is that a single hydraulic cylinder drives a single L-shaped fork to push the cargo to center. The centering process of this utility model is that the two second hydraulic telescopic devices drive the L-shaped forks to move synchronously and in the same direction, which not only achieves automated centering, but also avoids the damage to the second hydraulic telescopic device or the L-shaped fork caused by a single L-shaped fork pushing the pallet beam.

[0023] 3. The anti-collision component is hinged to the floating plate through the first and second adjusting plates. When the L-shaped fork contacts the ground, the inverted L-shaped mast continues to move downward. Under the action of the rotation of the first and second adjusting plates, the floating plate and L-shaped fork cannot be driven to continue moving downward. This not only avoids the L-shaped fork from continuing to collide with the ground and prevents the L-shaped fork from being squeezed by the ground and causing damage, but also allows the L-shaped fork to be lowered to the lowest position, making it easy to insert under the cargo pusher. Furthermore, a counterweight is set to improve the flexibility of the rotation of the first and second adjusting plates.

[0024] 4. A swing assembly and a slewing assembly are also provided. The slewing assembly is connected to the crane's ropes. The slewing drive inside the slewing assembly can drive the swing assembly, the inverted L-shaped gantry, the anti-collision assembly, and the L-shaped fork to rotate horizontally, which facilitates the adjustment of the L-shaped fork's fork entry direction. The swing assembly can drive the inverted L-shaped gantry to swing, causing the bottom end of the L-shaped fork to move upward, and the entire L-shaped fork to tilt, preventing goods from slipping during transportation and improving handling safety. Furthermore, a first angle sensor and a second angle sensor are provided to facilitate integration into an automated control system, realize automated operation, and improve transportation efficiency.

[0025] It should be understood that the description in this utility model description section is not intended to limit the key or essential features of the embodiments of this utility model, nor is it intended to restrict the scope of this utility model. Other features of this utility model will become readily apparent from the following description. Attached Figure Description

[0026] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0027] Figure 1This is a structural schematic diagram of an intelligent forklift provided in an embodiment of this application;

[0028] Figure 2 This is a schematic diagram of the slewing component in an intelligent forklift provided in an embodiment of this application;

[0029] Figure 3 This is a schematic diagram of the structure of the swing component in an intelligent forklift provided in an embodiment of this application;

[0030] Figure 4 A schematic diagram of the mounting structure of the mounting plate in an intelligent forklift provided in an embodiment of this application;

[0031] Figure 5 A schematic diagram of the installation structure of the limiting component in an intelligent forklift provided in an embodiment of this application;

[0032] Figure 6 This is a schematic diagram of the installation structure of the floating plate in an intelligent forklift provided in an embodiment of this application.

[0033] Numbering on the map:

[0034] 1. Inverted L-shaped gantry; 11. Upper horizontal plate; 12. Lower vertical plate;

[0035] 2. Swing assembly; 21. Lower connecting plate; 22. First hydraulic telescopic device; 23. Lower slewing frame; 24. Upper connecting plate; 25. Rotating shaft; 26. First angle sensor;

[0036] 3. Slewing assembly; 31. Upper slewing frame; 32. Slewing drive; 33. Sheave; 34. Second angle sensor;

[0037] 4. Anti-collision components; 41. Floating plate; 42. First adjusting plate; 43. Second adjusting plate; 44. Counterweight; 45. Guide protrusion; 46. Movable limiting plate; 47. Support limiting plate;

[0038] 5. Forklift assembly; 51. Rail; 52. Slider; 53. Mounting plate; 54. Second hydraulic expansion joint; 55. End plate; 56. L-shaped fork body;

[0039] 6. Limiting components; 61. Through-beam photoelectric switch; 62. Diffuse reflection limit switch; 63. Intermediate plate; 64. Toggle limit switch; 65. Hinge plate; 66. Photoelectric limit switch; 67. Light reflector. Detailed Implementation

[0040] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0041] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0042] Please refer to Figures 1-6 An embodiment of this utility model provides an intelligent forklift, comprising:

[0043] The inverted L-shaped gantry 1 is connected to the crane by a rope at its top via a suspension mechanism; the inverted L-shaped gantry 1 consists of two inverted L-shaped plates and a connecting plate, the inverted L-shaped plates being divided into an upper horizontal plate 11 and a lower vertical plate 12;

[0044] The forklift assembly 5 is installed at the bottom of the inverted L-shaped mast 1 via the anti-collision assembly 4. It includes two rails 51 arranged along the first direction, the extension direction of the rails 51 is the second direction, the first direction and the second direction are perpendicular to each other, and two L-shaped forks 56 that can move along the second direction are provided on the rails 51. The anti-collision assembly 4 is used to prevent the L-shaped forks 56 from rigidly colliding with the ground.

[0045] The limiting component 6 includes a through-beam photoelectric switch 61 located at the bottom end of the two L-shaped forks 56, and two diffuse reflection limit switches 62 located at the bottom of the L-shaped forks 56 close to each other. The diffuse reflection limit switches 62 are used to monitor the distance between the beam of the cargo pallet and the L-shaped forks 56. A photoelectric limit switch 66 is provided in the middle of the track 51. The photoelectric limit switch 66 is used to monitor the distance between the L-shaped forks 56 and the middle position of the track 51.

[0046] like Figures 1 to 6 As shown, the anti-collision component 4 can prevent the L-shaped fork 56 from rigidly colliding with the ground, allowing the L-shaped fork 56 to make relatively stable contact with the ground, eliminating the need for the operator to visually estimate the distance between the L-shaped fork 56 and the ground. In addition, the light receiver and light generator of the through-beam photoelectric switch 61 are respectively located at the bottom end of the L-shaped fork 56. When the receiver receives the light emitted by the generator, it means that the end of the L-shaped fork 56 has passed through the pallet of the goods, eliminating the need for the operator to visually estimate the insertion depth of the L-shaped fork 56. This allows for cooperation with the automated control system to fork and transfer goods, effectively solving the problem that existing lifting forks cannot automatically fork goods, and effectively improving transfer efficiency.

[0047] In some embodiments, an intermediate plate 63 is provided between the two tracks 51. Photoelectric limit switches 66 are installed on the two end faces of the top of the intermediate plate 63 along the second direction. A lever-type limit switch 64 is provided on the end face of the middle part of the intermediate plate 63 near the bottom end of the L-shaped fork 56. A hinge plate 65 is provided below the lever-type limit switch 64 and is hingedly installed on the intermediate plate 63. The extension direction of the hinge axis of the hinge plate 65 is the second direction. There is a first included angle between the hinge plate 65 and the intermediate plate 63. The opening of the first included angle faces upward.

[0048] like Figure 1 and Figure 5 As shown, when the through-beam photoelectric switch 61 malfunctions, the goods press against the hinge plate 65, which in turn presses against the button of the lever-type limit switch 64, thus stopping the L-shaped fork 56 from inserting, preventing the goods from colliding with the vertical part of the L-shaped fork 56, and improving the safety of equipment operation.

[0049] In some embodiments, mounting plates 53 are provided between the two ends of the two tracks 51 along the first direction, and second hydraulic telescopic devices 54 are installed on the two mounting plates 53. End plates 55 are provided on the two L-shaped forks 56 near the end of the inverted L-shaped gantry 1. The two second hydraulic telescopic devices 54 are detachably connected to the two end plates 55 respectively. Slider 52 that fit with the track 51 are provided on the top and bottom of the L-shaped fork 56 near the end face of the inverted L-shaped gantry 1.

[0050] like Figures 4 to 6 As shown, the basic frame is formed by two vertical mounting plates 53 and two horizontal tracks 51. The sliders 52 at the top and bottom of the L-shaped fork 56 can move horizontally along the tracks 51. When the second hydraulic telescopic device 54 extends or retracts, the mounting plates 53 are fixed and cannot move, which in turn drives the end plate 55 and the L-shaped fork 56 to move, thus achieving the purpose of horizontal movement of the two L-shaped forks 56. Optionally, the track 51 is a steel bar with a convex groove, and the slider 52 is an I-beam. The outer surface of one end of the I-beam fits with the inner surface of the convex groove to ensure the stability of the sliding.

[0051] Furthermore, such as Figures 4 to 6As shown, the distance between the beam of the cargo pallet and the L-shaped fork 56 is measured and monitored by a diffuse reflection limit switch 62. After the corresponding L-shaped fork 56 has been in contact with the beam, the movement of the L-shaped fork 56 is stopped. Then, a photoelectric limit switch 66 is used to monitor the distance between the L-shaped fork 56 and the middle position of the track 51, so that the two second hydraulic telescopic valves 54 drive the two L-shaped forks 56 to move synchronously and in the same direction, bringing the cargo to the center and ensuring that the two L-shaped forks 56 are evenly stressed. In contrast, the existing technology uses two hydraulic telescopic cylinders to drive the two L-shaped forks 56 to move synchronously closer to achieve the same cargo position. The centering function involves a single hydraulic cylinder driving a single L-shaped fork 56 to center the goods. In this invention, the centering process involves two second hydraulic telescopic devices 54 pushing the L-shaped fork 56 to move synchronously in the same direction. This not only achieves automated centering but also avoids damage to the second hydraulic telescopic devices 54 or the L-shaped fork 56 caused by a single L-shaped fork 56 pushing the pallet beam. Furthermore, to facilitate the detection by the photoelectric limit switch 66, a light reflector 67 is installed on the L-shaped fork 56. The photoelectric limit switch 66 corresponds to the light reflector 67 to achieve the detection purpose.

[0052] In some embodiments, the anti-collision component 4 includes:

[0053] Floating plate 41;

[0054] The connecting part includes a first adjusting plate 42 hinged to the bottom of the floating plate 41 and a second adjusting plate 43 hinged to the top of the floating plate 41. The ends of the first adjusting plate 42 and the second adjusting plate 43 away from the floating plate 41 are both hinged to the inverted L-shaped gantry 1.

[0055] The limiting part is used to limit the range of movement of the floating plate 41 along the first direction;

[0056] like Figures 4 to 6 As shown, the first adjusting plate 42 is hinged to the bottom of the inverted L-shaped mast 1 at the end away from the floating plate 41; the second adjusting plate 43 is provided with a counterweight 44 at the end away from the floating plate 41, and the middle of the second adjusting plate 43 is hinged to the middle of the inverted L-shaped mast 1. When the L-shaped fork 56 contacts the ground and the inverted L-shaped mast 1 continues to move downward, the first adjusting plate 42 and the second adjusting plate 43 rotate through the shaft connected to the inverted L-shaped mast 1 to achieve the purpose of floating the floating plate 41. Furthermore, the counterweight 44 can improve the stability of rotation and avoid the situation where the forklift assembly 5 is too heavy and the rotation is not smooth.

[0057] Additionally, a guide protrusion 45 extends from the middle of the floating plate 41 toward the inverted L-shaped gantry 1; the limiting part includes a support limiting plate 47 disposed on the inverted L-shaped gantry 1 and a movable limiting plate 46 disposed on the inverted L-shaped gantry 1, wherein the side surface of the guide protrusion 45 away from the main body of the floating plate 41 is in contact with the side surface of the movable limiting plate 46 close to the main body of the floating plate 41; at this time, the floating plate 41 is at its lowest point, i.e., the lower limit position of the floating plate 41, when the L-shaped fork 56 is in contact with the ground When the inverted L-shaped gantry 1 continues to move downwards, the floating plate 41 moves upwards. It rotates through the shaft connected to the inverted L-shaped gantry 1. Therefore, the guide protrusion 45 will first move away from the moving limit plate 46 and then move towards the moving limit plate 46. When the guide protrusion 45 abuts against the moving limit plate 46 again, the floating plate 41 can no longer move upwards. At this time, the floating plate 41 is at the highest point, that is, the lower limit position of the floating plate 41, thus achieving the purpose of limiting the range of movement of the floating plate 41 in the vertical direction.

[0058] In some embodiments, the suspension mechanism includes a slewing assembly 3, the slewing assembly 3 including a slewing drive 32 connected to a rope of the crane, the slewing drive 32 having a first axis extending in a first direction;

[0059] The bottom of the inner rotating body of the rotary drive 32 is equipped with a swing assembly 2. The swing assembly 2 includes a rotating shaft 25 that is rotatably connected to the top of the inverted L-shaped gantry 1, and a drive unit that drives the inverted L-shaped gantry 1 to rotate around the rotating shaft 25. The axis of the rotating shaft 25 extends perpendicularly to the first direction.

[0060] like Figure 1 , Figure 2 and Figure 3 As shown, the rotary drive 32 is a common rotating device. The rotary drive 32 includes a housing, a bearing installed inside the housing, and an inner rotating body installed inside the bearing. The outer wall of the inner rotating body is also provided with a driven gear ring offset from the bearing. A drive motor is installed on the housing, and the drive motor is provided with a drive gear that meshes and is connected to the driven gear ring. The drive motor drives the drive gear to rotate, and through the meshing of the drive gear with the driven gear ring, it drives the driven gear ring and the inner rotating body to rotate. Finally, the rotary drive 32 can drive the swing assembly 2, the inverted L-shaped gantry 1, the anti-collision assembly 4, and the L-shaped fork 56 to rotate horizontally, which facilitates the adjustment of the insertion direction of the L-shaped fork 56. The swing assembly 2 can drive the inverted L-shaped gantry 1 to swing, so that the bottom end of the L-shaped fork 56 moves upward and the L-shaped fork 56 tilts as a whole, avoiding the situation of goods slipping during transportation and improving the safety of handling.

[0061] In some embodiments, the slewing assembly 3 further includes an upper slewing frame 31 connected to the housing of the slewing drive 32, and a plurality of pulleys 33 are evenly provided at the top of the upper slewing frame 31; such as Figure 1 and Figure 2 As shown, the crane's rope passes through the corresponding pulley 33 to achieve the purpose of lifting. The evenly distributed pulleys 33 can improve the stability of the lifting. Optionally, the upper slewing frame 31 is composed of two symmetrical steel pipe frames welded in a triangular state. The center of symmetry is the slewing drive 32. Four pulleys 33 are set at the corners of the steel pipe frames away from the center of symmetry to achieve the purpose of stable lifting.

[0062] In some embodiments, the swing assembly 2 further includes a lower slewing frame 23, which has a first end and a second end. The top surface of the first end is provided with an upper connecting plate 24 connected to the inner rotating body of the slewing drive 32, and the bottom end of the first end is provided with a rotating shaft 25. The second end is hinged to a first hydraulic telescopic device 22. The inverted L-shaped gantry 1 is provided with a lower connecting plate 21 at the end away from the rotating shaft 25. The end of the first hydraulic telescopic device 22 away from the second end is hinged to the lower connecting plate 21. The axial extension direction of each hinge axis of the first hydraulic telescopic device 22 is parallel to the axial extension direction of the rotating shaft 25.

[0063] like Figure 1 and Figure 3 As shown, when the first hydraulic telescopic device 22 extends or retracts, the hinged connection causes the lower slewing frame 23 and the inverted L-shaped gantry 1 to rotate around the rotating shaft 25. Since the lower slewing frame 23 is connected to the inner rotating body of the rotary drive 32 through the upper connecting plate 24, it cannot swing. As a result, the inverted L-shaped gantry 1 is tilted horizontally, which in turn causes the bottom end of the L-shaped fork 56 to move upward. The L-shaped fork 56 tilts as a whole, which prevents the goods from slipping during transportation and improves the safety of handling.

[0064] In some embodiments, the rotary drive 32 is further provided with a second angle sensor 34, which is used to monitor the rotation angle of the rotary drive 32. A first angle sensor 26 is provided on the inverted L-shaped gantry 1 at a position corresponding to the rotation shaft 25, which is used to monitor the swing angle of the inverted L-shaped gantry 1. Figures 1 to 3 As shown, by detecting the rotation angle and swing angle, it is easy to connect to the automated control system to realize automated operation and improve transportation efficiency. Optionally, the first angle sensor 26 is installed on the upper horizontal plate 11 of the inverted L-shaped gantry 1. The measuring shaft of the first angle sensor 26 is connected to the end of the rotating shaft 25 to achieve the purpose of measurement. In addition, the second angle sensor 34 is installed on the housing of the rotary drive 32. The bottom end of its measuring shaft is fitted with a guide wheel. The guide wheel is in close contact with the inner rotating body of the rotary drive 32 for transmission connection, thereby realizing the function of measuring the rotation angle of the rotary drive 32.

[0065] In the description of this specification, the terms "connection," "installation," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0066] In the description of this specification, the terms "one embodiment," "some embodiments," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0067] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An intelligent forklift lifting device, characterized in that, include: The inverted L-shaped gantry (1) is connected to the crane by a rope at its top via a suspension mechanism; The forklift assembly (5) is installed at the bottom of the inverted L-shaped mast (1) by means of the anti-collision assembly (4), including two rails (51) arranged along a first direction, the extension direction of the rails (51) being a second direction, the first direction and the second direction being perpendicular to each other, and two L-shaped forks (56) that can move along the second direction are provided on the rails (51). The anti-collision assembly (4) is used to prevent the L-shaped forks (56) from rigidly colliding with the ground. The limiting component (6) includes a through-beam photoelectric switch (61) located at the bottom ends of the two L-shaped forks (56), and two diffuse reflection limiting switches (62) located at the bottom of the L-shaped forks (56) close to each other. The diffuse reflection limiting switches (62) are used to monitor the distance between the beam of the cargo pallet and the L-shaped forks (56). A photoelectric limiting switch (66) is provided in the middle of the track (51). The photoelectric limiting switch (66) is used to monitor the distance between the L-shaped forks (56) and the middle position of the track (51).

2. The intelligent forked spreader of claim 1, wherein, A middle plate (63) is provided between the two tracks (51). The photoelectric limit switch (66) is installed on the top of the middle plate (63) at both ends along the second direction. A lever-type limit switch (64) is provided on the end face of the middle part of the middle plate (63) near the bottom end of the L-shaped fork (56). A hinge plate (65) is provided below the lever-type limit switch (64) and is hinged to the middle plate (63). The extension direction of the hinge axis of the hinge plate (65) is the second direction. There is a first included angle between the hinge plate (65) and the middle plate (63). The opening of the first included angle faces upward.

3. The intelligent forked spreader of claim 1, wherein, Mounting plates (53) are provided between the two ends of the two tracks (51) along the first direction. A second hydraulic telescopic device (54) is installed on each of the two mounting plates (53). An end plate (55) is provided on each of the two L-shaped forks (56) near the end of the inverted L-shaped gantry (1). The two second hydraulic telescopic devices (54) are detachably connected to the two end plates (55) respectively. A slider (52) that fits with the track (51) is provided on the top and bottom of the L-shaped fork (56) near the end face of the inverted L-shaped gantry (1).

4. The intelligent forked spreader of claim 1, wherein, The anti-collision component (4) includes: Floating plate (41); The connecting part includes a first adjusting plate (42) hinged to the bottom of the floating plate (41) and a second adjusting plate (43) hinged to the top of the floating plate (41). The ends of the first adjusting plate (42) and the second adjusting plate (43) away from the floating plate (41) are both hinged to the inverted L-shaped gantry (1). The limiting part is used to limit the range of movement of the floating plate (41) in the first direction.

5. The intelligent forked spreader of claim 1, wherein, The hoisting mechanism includes a slewing assembly (3), the slewing assembly (3) including a slewing drive (32) connected to a rope of the crane, the slewing drive (32) having a first axis extending in a first direction; The bottom of the inner rotating body of the rotary drive (32) is equipped with a swing assembly (2). The swing assembly (2) includes a rotating shaft (25) rotatably connected to the top of the inverted L-shaped gantry (1) and a drive unit that drives the inverted L-shaped gantry (1) to rotate around the rotating shaft (25). The axis of the rotating shaft (25) extends perpendicularly to the first direction.

6. The intelligent forked spreader of claim 5, wherein, The slewing assembly (3) also includes an upper slewing frame (31) connected to the housing of the slewing drive (32), and a plurality of rope wheels (33) are evenly provided at the top of the upper slewing frame (31).

7. The intelligent forked spreader of claim 6, wherein, The swing assembly (2) further includes a lower slewing frame (23), which has a first end and a second end. The top surface of the first end is provided with an upper connecting plate (24) connected to the inner rotating body of the slewing drive (32). The bottom end of the first end is provided with the rotating shaft (25). The second end is hinged to a first hydraulic telescopic device (22). The inverted L-shaped gantry (1) is provided with a lower connecting plate (21) at the end away from the rotating shaft (25). The end of the first hydraulic telescopic device (22) away from the second end is hinged to the lower connecting plate (21). The axial extension direction of each hinge axis of the first hydraulic telescopic device (22) is parallel to the axial extension direction of the rotating shaft (25).

8. The intelligent forklift lifting device according to claim 7, characterized in that, The rotary drive (32) is also provided with a second angle sensor (34), which is used to monitor the rotation angle of the rotary drive (32). The inverted L-shaped gantry (1) is provided with a first angle sensor (26) at the position corresponding to the rotation shaft (25), which is used to monitor the swing angle of the inverted L-shaped gantry (1).

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