Rotary fork mechanism for container reach stacker

Abstract

The application provides a rotating fork mechanism for a container reach stacker, and relates to the technical field of forks, which comprises a shell, a rotating assembly arranged in the shell for connection with an external vehicle, a set of slide rails fixedly installed at the bottom of the shell, fork assemblies arranged at the two sides of the slide rails for hoisting containers, and an extension frame fixedly installed at one side of the shell. In order to adapt to hoisting or forking operation, the application can prevent the folding of the clamping plate at the container position, can adjust the position of one end of the telescopic rod under the rotation limitation of the pivot on the clamping plate by starting the hydraulic rod, can control the clamping plate, can realize the forking or hoisting requirement by adjusting the angle of the clamping plate, and can automatically adjust the required placement mode at different placement heights. Compared with the existing equipment, the application can freely adjust the placement mode, so that the fork mechanism does not need to be replaced during use, and the transfer efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of forklift technology, and more specifically, to a rotating forklift mechanism for front-end lifting of containers. Background Technology

[0002] Containers are commonly used in logistics operations. To facilitate transportation and management, special vehicles equipped with forklift mechanisms are needed to centrally transfer containers. For example, application number CN201922084289.0 describes a rotating forklift mechanism for container front-end lifting, including a fork lifting mechanism, a fork rotation mechanism, and a fork pitch support mechanism. The fork lifting mechanism includes a lifting cylinder, a fork support bracket, forks, and a crossbeam. One end of the lifting cylinder is pinned to the bottom of the fork support bracket, and the other end is connected to the crossbeam. Symmetrical features are arranged on the crossbeam. The fork lifting mechanism is connected to a fork slewing mechanism on one side. The fork slewing mechanism includes a slewing bearing, a slewing motor, a slewing reducer, planetary gears, and a planetary gear support. The slewing motor is connected to the planetary gears through the slewing reducer. The planetary gears are mounted on the planetary gear support. The planetary gears are meshed with the inner ring of the slewing bearing, and the slewing bearing is located on one side of the slewing reducer. The above fork mechanism fully considers the characteristics of container loading, unloading, and stacking in railway transportation, and combines the special functional requirements of bulk cargo loading and unloading to realize a 3-axle fork that is mobile and flexible.

[0003] However, existing forklift mechanisms can generally only achieve one of the two methods of forking or lifting containers. During the transfer process, the forking method is generally used to transfer containers when the height is low, which is faster. However, when the height is high, in order to ensure stability during placement, the lifting method is used to transfer the containers. If the existing forklift mechanism is used, another lifting forklift structure needs to be used to transfer the containers after the height is increased. This requires personnel to change the forklift mechanism during the transfer process, reducing the transfer efficiency. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a rotating fork mechanism for container front lifting, which solves the problem that existing fork mechanisms cannot adjust the lifting or hoisting method as needed.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0006] A rotating fork mechanism for container front lifting includes a housing, inside which a rotating component for connecting to external vehicles is disposed. A set of slide rails is fixedly installed at the bottom of the housing, and fork assemblies for lifting containers are disposed on both sides of the slide rails. An extension frame is fixedly installed on one side of the housing, and a first motor is fixedly installed inside the extension frame. A positive and negative lead screw for driving the fork assemblies is fixedly installed at the output end of the first motor.

[0007] Preferably, the rotating assembly includes a connecting shaft that is connected to an external vehicle. One end of the connecting shaft is fixedly mounted with a mounting plate. A first rotating groove is provided inside the housing. The mounting plate is rotatably mounted inside the first rotating groove. Several second rotating grooves are provided on the outer side of the mounting plate. Gears are installed inside each of the second rotating grooves. The inner wall of the first rotating groove is provided with teeth for meshing with the gears.

[0008] Preferably, an expansion slot is provided on one side of the first rotating slot, and a second motor is fixedly installed on one side of one of the second rotating slots. The output end of the second motor is fixedly connected to the corresponding gear, and the second motor is located inside the expansion slot.

[0009] Preferably, the fork assembly includes two slides, which are movably mounted on both sides of a slide rail. Each slide has a transmission hole in the middle, which is threaded with a lead screw. Each slide has a movable frame fixedly mounted on its surface, and each movable frame has a slide groove inside. Each slide groove has a slider slidably mounted inside, and each slider has a support plate fixedly mounted on its outer surface for securing the container.

[0010] Preferably, one side of the support plate has a fork fixedly installed on its surface for supporting different items, and the other side of the support plate has a clamping plate installed at one end via a pivot.

[0011] Preferably, a hydraulic rod is fixedly installed on the back of the support plate on the other side, a limit groove is opened on the back of the clamping plate, a limit block is slidably installed inside the limit groove, and a telescopic rod is installed between the limit block and the hydraulic rod through a hinge.

[0012] Preferably, a transmission rod is rotatably mounted inside each of the grooves, and each transmission rod passes through the slider and is threadedly engaged with the slider.

[0013] Preferably, each of the transmission rods has an insertion hole at its outer end.

[0014] Preferably, an extension block is fixedly installed on the inner side of each of the movable frames, and a slot is opened inside each of the extension blocks. A stabilizing frame is movably installed between the slots on each side.

[0015] Preferably, springs are fixedly installed between the stabilizer and the slot.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. In order to enable the container to rotate at an angle and be placed in multiple directions, the second motor can be started to drive the corresponding gear to rotate. Under the rotation of the first gear, the meshing transmission between the first and second gears, together with multiple gears, stabilizes the container and achieves overall rotation of the outer shell. This causes the angle of the fork assembly to change accordingly, making it easier for personnel to place the container flexibly in multiple directions. The first motor can be started to drive the forward and reverse screws to rotate. Under the limit of the slide rail on the slide block, the two sides of the forward and reverse screws respectively engage with the transmission holes on both sides, so that the support plates on both sides can clamp each other, thereby achieving the fixed clamping of the container and enabling the container to be lifted.

[0018] 2. In order to adapt this application to lifting or forklifting operations and prevent the clamping plate from folding the container position, by activating the hydraulic rod, under the rotation restriction of the clamping plate by the rotating shaft, the position of one end of the telescopic rod can be adjusted to achieve control of the clamping plate. Thus, this application can achieve the forklifting or lifting requirements by adjusting the angle of the clamping plate, and can adjust the required placement method at different placement heights. Compared with existing equipment, this application can freely adjust the placement method, so that there is no need to change the forklift mechanism during use, thus improving the transfer efficiency.

[0019] When the hydraulic rod retracts, it uses the adaptive length of the telescopic rod and the rotational connection of the hinge to pull the limit block inward and use the limit groove to straighten the clamping plate, thus not affecting the container forklift operation.

[0020] In this system, the hydraulic rod extends using the adaptive length of the telescopic rod and is connected by the rotation of the hinge, causing the limiting block to push outward, thereby enabling the clamping plate to clamp the container.

[0021] 3. By inserting an external power tool into the socket and rotating it, the transmission rod can be rotated. Utilizing the threaded engagement between the transmission rod and the slider, the position of the slider can be adjusted under the limiting position of the slide groove, thereby adjusting the position of the support plate. This allows the application to be adjusted according to the container size during clamping, enhancing its applicability. To improve the stability of the container during hoisting and prevent container movement, a spring pushes the stabilizing frame in real time, ensuring the stabilizing frame is firmly attached to the container and reducing container movement. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0023] Figure 2 This is a three-dimensional structural diagram of the present invention viewed from below;

[0024] Figure 3 This is a side view of the structure of the present invention;

[0025] Figure 4 yes Figure 3 Schematic diagram of the three-dimensional cross-section at point AA;

[0026] Figure 5 This is a bottom-view structural diagram of the present invention;

[0027] Figure 6 yes Figure 5 Schematic diagram of the three-dimensional cross-section at point BB;

[0028] Figure 7 This is a three-dimensional structural diagram of the fork assembly;

[0029] Figure 8 This is a side view of the fork assembly.

[0030] Figure 9 yes Figure 8 Schematic diagram of the three-dimensional structure of the cross-section at the CC point;

[0031] Figure 10 yes Figure 8 Schematic diagram of the three-dimensional structure of the cross section at point DD.

[0032] In the diagram: 1. Outer shell; 101. First rotating groove; 102. Gear; 103. Expansion groove; 2. Rotating assembly; 201. Mounting plate; 202. Connecting shaft; 203. Second rotating groove; 204. Gear; 205. Second motor; 3. Slide rail; 4. Fork assembly; 401. Slide block; 402. Transmission hole; 403. Movable frame; 4031. Slide groove; 4032. Slider; 4033. Transmission. 4034, Insertion hole; 404, Support plate; 4041, Fork rod; 4042, Rotating shaft; 4043, Clamping plate; 4044, Hydraulic rod; 4045, Telescopic rod; 4046, Limiting groove; 4047, Limiting block; 4048, Hinge; 405, Extension block; 4051, Slot; 4052, Spring; 4053, Stabilizer; 5, Extension frame; 6, First motor; 7, Positive and negative lead screws. Detailed Implementation

[0033] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0034] like Figures 1 to 10As shown, a rotating fork mechanism for front-end lifting of a container includes a housing 1. Inside the housing 1, a rotating component 2 for connecting with external vehicles is provided. A set of slide rails 3 is fixedly installed at the bottom of the housing 1. Fork components 4 for lifting containers are provided on both sides of the slide rails 3. An extension frame 5 is fixedly installed on one side of the housing 1. A first motor 6 is fixedly installed inside the extension frame 5. A positive and negative lead screw 7 for driving the fork components 4 is fixedly installed at the output end of the first motor 6.

[0035] In this embodiment, the rotating component 2 includes a connecting shaft 202, which is connected to an external vehicle. One end of the connecting shaft 202 is fixedly mounted with a mounting plate 201. A first rotating groove 101 is opened inside the outer shell 1. The mounting plate 201 is rotatably mounted inside the first rotating groove 101. A plurality of second rotating grooves 203 are opened on the outer side of the mounting plate 201. Gears 204 are installed inside each of the second rotating grooves 203. The inner wall of the first rotating groove 101 is provided with teeth 102 for meshing with the gears 204.

[0036] An expansion slot 103 is provided on one side of the first rotating slot 101. A second motor 205 is fixedly installed on one side of a second rotating slot 203. The output end of the second motor 205 is fixedly connected to the corresponding gear 204. The second motor 205 is located inside the expansion slot 103. In order to enable the container to rotate at an angle and achieve multi-directional placement, the second motor 205 is started to drive the corresponding gear 204 to rotate. Under the rotation of the gear 204, the meshing transmission between the gear and the teeth 102, together with the multiple gears 204, stabilizes the rotation of the outer shell 1, thereby causing the angle of the fork assembly 4 to change accordingly, which is more conducive to the flexible placement of the container in multiple directions.

[0037] It should be noted that the forklift assembly 4 includes two slides 401, which are movably mounted on both sides of the slide rail 3. Each slide 401 has a transmission hole 402 in the middle, which is threaded into the positive and negative lead screws 7. A movable frame 403 is fixedly mounted on the surface of each slide 401. A slide groove 4031 is opened inside each movable frame 403, and a slider 4032 is slidably mounted inside each slide groove 4031. A support plate 404 for fixing the container is fixedly mounted on the outer surface of each slider 4032. By starting the first motor 6, the positive and negative lead screws 7 can be rotated. Under the limitation of the slide rail 3 on the slides 401, the two sides of the positive and negative lead screws 7 are respectively threaded into the transmission holes 402 on both sides, so that the support plates 404 on both sides can clamp relative to each other, thereby realizing the fixed clamping of the container and enabling the lifting operation of the container.

[0038] In the specific setup, a fork 4041 for supporting different items is fixedly installed on the surface of one side support plate 404, and a clamping plate 4043 is installed on one end of the other side support plate 404 through a pivot 4042.

[0039] A hydraulic rod 4044 is fixedly installed on the back of the other side support plate 404. A limit groove 4046 is opened on the back of the clamping plate 4043. A limit block 4047 is slidably installed inside the limit groove 4046. A telescopic rod 4045 is installed between the limit block 4047 and the hydraulic rod 4044 through a hinge 4048. In order to adapt to the lifting or forking operation and to prevent the clamping plate 4043 from folding the container position, by activating the hydraulic rod 4044, under the rotation restriction of the clamping plate 4043 by the rotating shaft 4042, the position of one end of the telescopic rod 4045 can be adjusted to achieve control of the clamping plate 4043. Thus, the present application can achieve the forking or lifting requirements by adjusting the angle of the clamping plate 4043, and can adjust the required placement method at different placement heights. Compared with existing equipment, the present application can freely adjust the placement method, so that there is no need to change the forklift mechanism during use, thus improving the transfer efficiency.

[0040] When the hydraulic rod 4044 retracts, it uses the adaptive length of the telescopic rod 4045 and the rotational connection of the hinge 4048 to pull the limit block 4047 inward and use the limit groove 4046 to straighten the clamping plate 4043, so as not to affect the container forklift operation.

[0041] Specifically, when the hydraulic rod 4044 extends, it utilizes the adaptive length of the telescopic rod 4045 and the rotational connection of the hinge 4048 to push the limiting block 4047 outward, thereby enabling the clamping plate 4043 to perform clamping operations on the container.

[0042] It is understood that in this application, a transmission rod 4033 is rotatably mounted inside each slide 4031, and each transmission rod 4033 passes through the slider 4032 and is threadedly engaged with the slider 4032;

[0043] Each transmission rod 4033 has an insertion hole 4034 at its outer end. By inserting an external power tool into the insertion hole 4034 and rotating it, the transmission rod 4033 can be rotated. Utilizing the threaded engagement between the transmission rod 4033 and the slider 4032, and under the limiting position of the slide groove 4031, the position of the slider 4032 can be adjusted, thereby adjusting the position of the support plate 404. This allows the device to be adjusted according to the container size during clamping, enhancing its applicability.

[0044] Each movable frame 403 has an extension block 405 fixedly installed on its inner side, and each extension block 405 has a slot 4051 inside. A stabilizing frame 4053 is movably installed between the slots 4051 on each side.

[0045] Springs 4052 are fixedly installed between the stabilizer 4053 and the slot 4051. In order to improve the stability of the container during hoisting and prevent the container from moving, the springs 4052 push the stabilizer 4053 in real time so that the stabilizer 4053 can be firmly attached to the container, reducing the movement of the container.

[0046] The working principle of a rotating forklift mechanism for front lifting of containers:

[0047] When in use, the placement method is first adjusted according to the needs. For example, when working at height, the lifting method is adopted. The fork assembly 4 is facing downward and located above the container. When the hydraulic rod 4044 extends, the adaptive length of the telescopic rod 4045 is used, and the hinge 4048 is used to rotate and connect, so that the limiting block 4047 is pushed outward. In conjunction with the fork rod 4041 on the other side, the first motor 6 is started, which can drive the positive and negative screw rods 7 to rotate. Under the limitation of the slide rail 3 on the slide block 401, the two sides of the positive and negative screw rods 7 are threaded with the transmission holes 402 on both sides, so that the position of the support plates 404 on both sides can be adjusted, and the fork rod 4041 and the clamping plate 4043 clamp the upper end of the container.

[0048] When operating at low altitudes, a forklift method is used, in which the fork assembly 4 is erected in one direction and located on one side of the container. Then, by activating the hydraulic rod 4044 to retract, the adaptive length of the telescopic rod 4045 and the rotational connection of the hinge 4048 are used to pull the limit block 4047 inward and straighten the clamping plate 4043 using the limit groove 4046, so as not to affect the placement of the container. Then, the container is lifted by the fork 4041 and the vehicle is used to raise the height of the mechanism for position transfer.

[0049] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. For those skilled in the art, other variations or modifications can be made based on the above description. It is impossible to exhaustively list all the implementation methods here. All obvious variations or modifications derived from the technical solutions of the present invention are still within the protection scope of the present invention.

Claims

1. A rotating forklift mechanism for container front lifting, comprising a housing (1), characterized in that: The housing (1) is provided with a rotating component (2) for connecting with external vehicles. A set of slide rails (3) is fixedly installed at the bottom of the housing (1). Fork assemblies (4) for lifting containers are provided on both sides of the slide rails (3). An extension frame (5) is fixedly installed on one side of the housing (1). A first motor (6) is fixedly installed inside the extension frame (5). A positive and negative lead screw (7) for driving the fork assembly (4) is fixedly installed at the output end of the first motor (6). The fork assembly (4) includes two slides (401), which are movably mounted on both sides of the slide rail (3). Each slide (401) has a transmission hole (402) in the middle, which is threaded with the positive and negative lead screws (7). Each slide (401) has a movable frame (403) fixedly mounted on its surface. Each movable frame (403) has a slide groove (4031) inside, and a slider (4032) is slidably mounted inside each slide groove (4031). Each slider (4032) has a support plate (404) fixedly mounted on its outer surface for fixing the container. One side of the support plate (404) has a fork (4041) fixedly installed on its surface for supporting different items, and the other side of the support plate (404) has a clamp (4043) installed at one end via a pivot (4042). A hydraulic rod (4044) is fixedly installed on the back of the support plate (404) on the other side. A limit groove (4046) is opened on the back of the clamping plate (4043). A limit block (4047) is slidably installed inside the limit groove (4046). A telescopic rod (4045) is installed between the limit block (4047) and the hydraulic rod (4044) through a hinge (4048).

2. The rotating fork mechanism for container front lifting according to claim 1, characterized in that: The rotating assembly (2) includes a connecting shaft (202) that is connected to an external vehicle. One end of the connecting shaft (202) is fixedly mounted with a mounting plate (201). The outer shell (1) has a first rotating groove (101) inside. The mounting plate (201) is rotatably mounted inside the first rotating groove (101). The outer side of the mounting plate (201) has several second rotating grooves (203). Gears (204) are installed inside each of the second rotating grooves (203). The inner wall of the first rotating groove (101) is provided with teeth (102) for meshing with the gears (204).

3. The rotating fork mechanism for container front lifting according to claim 2, characterized in that: An expansion slot (103) is provided on one side of the first rotating slot (101), and a second motor (205) is fixedly installed on one side of the second rotating slot (203). The output end of the second motor (205) is fixedly connected to the corresponding gear (204), and the second motor (205) is located in the expansion slot (103).

4. The rotating fork mechanism for container front lifting according to claim 1, characterized in that: A transmission rod (4033) is rotatably mounted inside each of the grooves (4031), and each transmission rod (4033) passes through the slider (4032) and is threadedly engaged with the slider (4032).

5. A rotating fork mechanism for container front lifting according to claim 4, characterized in that: Each of the transmission rods (4033) has an insertion hole (4034) at its outer end.

6. The rotating fork mechanism for container front lifting according to claim 1, characterized in that: An extension block (405) is fixedly installed on the inner side of each of the movable frames (403), and a slot (4051) is opened inside each of the extension blocks (405). A stabilizing frame (4053) is movably installed between the slots (4051) on each side.

7. A rotating fork mechanism for container front lifting according to claim 6, characterized in that: Springs (4052) are fixedly installed between the stabilizer (4053) and the slot (4051).

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