Pallet fork device and forklift

Abstract

The utility model provides a pallet fork device which comprises a pallet fork base frame and a plurality of pallet forks, the number of the pallet forks is not less than three, the pallet fork base frame is used for being connected with a forklift body, the pallet fork device further comprises an electric fork distance adjusting assembly, and the electric fork distance adjusting assembly comprises an electric driving mechanism and a plurality of installation modules. The electric driving mechanism is arranged on the pallet fork base frame, the multiple mounting modules are sequentially arranged in the width direction of the pallet fork base frame, the electric driving mechanism is used for controlling the mounting modules to move in the width direction of the pallet fork base frame, and the multiple pallet forks correspond to the multiple mounting modules one to one. And the pallet forks are fixedly connected with the corresponding mounting modules. The utility model further provides a forklift.

Description

Technical Field

[0001] This utility model relates to the field of material handling equipment technology, specifically to a forklift device and a forklift including the forklift device. Background Technology

[0002] Forklifts are equipped with multiple forks, which are used to pick up and carry materials. With the development of automated warehousing technology, the scenarios requiring forklifts are gradually increasing. However, because the spacing between the forks on a forklift is mostly fixed, it is inconvenient to use a forklift to pick up small materials, thus limiting the application scenarios of forklifts. Utility Model Content

[0003] This utility model aims to solve one of the technical problems in related technologies to a certain extent. To this end, this utility model provides a forklift device and a forklift including the forklift device.

[0004] To achieve the above objectives, the first aspect of this utility model discloses a fork assembly, which includes a fork frame and a plurality of forks, wherein the number of forks is not less than three. The fork frame is used to connect to a forklift body. The fork assembly further includes an electric fork spacing adjustment component, which includes an electric drive mechanism and a plurality of mounting modules. The electric drive mechanism is disposed on the fork frame, and the plurality of mounting modules are arranged sequentially along the width direction of the fork frame. The electric drive mechanism is used to control each mounting module to move along the width direction of the fork frame. The plurality of forks correspond one-to-one with the plurality of mounting modules, and the forks are fixedly connected to the corresponding mounting modules.

[0005] Optionally, the electric drive mechanism includes multiple electric push rods, each of which corresponds to one of the mounting modules, and the multiple electric push rods are arranged sequentially at intervals along the height direction of the fork frame, and the extension and retraction direction of the electric push rods is consistent with the width direction of the fork frame;

[0006] The mounting end of the electric actuator is fixedly mounted on the fork base frame, and the telescopic end of the electric actuator is fixedly connected to the corresponding mounting module.

[0007] Optionally, the electric drive mechanism further includes at least one set of guide sub-mechanisms. The guide sub-mechanism includes a first basic guide block, a basic guide rod, multiple auxiliary guide blocks, multiple edge guide rods, and two second basic guide blocks. The length direction of the basic guide rod and the edge guide rod are both consistent with the width direction of the fork frame. The basic guide rod and the multiple edge guide rods are arranged at intervals along the height direction of the fork frame.

[0008] The first basic guide block is fixed on the fork frame, and the two second basic guide blocks are respectively fixed on the two middle forks among the plurality of forks. The basic guide rod cooperates with the first basic guide block and the second basic guide block, and the basic guide rod can move along its own length direction under the guidance and limitation of the first basic guide block and the second basic guide block.

[0009] Each of the auxiliary guide blocks corresponds one-to-one with a plurality of the forks. The auxiliary guide blocks are disposed on the corresponding forks. In the plurality of forks other than the two forks connected by the basic guide rod, the auxiliary guide blocks on any two adjacent forks are connected by a corresponding edge guide rod. The edge guide rod cooperates with the corresponding auxiliary guide block, and the edge guide rod can move along its own length direction under the guidance and limitation of the corresponding auxiliary guide block.

[0010] Optionally, the basic guide rod is a cylindrical rod, and circular basic guide holes are formed on the first basic guide block and the second basic guide block. The basic guide rod passes through each of the basic guide holes and moves under the guidance of the basic guide holes. The guide sub-mechanism also includes two first anti-detachment stops, both of which are disposed on the fork base frame and fixedly connected to both ends of the basic guide rod.

[0011] The edge guide rod is a cylindrical rod, and a circular auxiliary guide hole is formed on the auxiliary guide block. The end of the edge guide rod passes through the corresponding auxiliary guide hole, and a second anti-detachment stop is formed at the end of the edge guide rod. The edge guide rod can move under the guidance of the corresponding edge guide hole.

[0012] Optionally, the guide submechanism further includes a base bushing and two auxiliary bushings. The base bushing is fitted into the base guide hole in the first base guide block, and the two auxiliary bushings are fitted into the base guide holes in the two second base guide blocks. The base guide rod passes through the base bushing and the two auxiliary bushings.

[0013] Each of the auxiliary bushings corresponds one-to-one with a plurality of the auxiliary guide blocks. The auxiliary bushings are disposed in the auxiliary guide holes of the corresponding auxiliary guide blocks, and the edge guide rods pass through the corresponding auxiliary bushings.

[0014] Optionally, the electric drive mechanism includes multiple sets of guide sub-mechanisms, which are spaced apart along the height direction of the fork frame.

[0015] Optionally, the mounting ends of two adjacent electric actuators are located at both ends in the width direction of the fork frame.

[0016] Optionally, the fork assembly includes four forks.

[0017] As a second aspect of this utility model, a forklift is provided, the forklift including a forklift body and a fork assembly, wherein the fork assembly is the fork assembly described in the first aspect of this utility model, and the fork frame is disposed on the forklift body.

[0018] Optionally, the forklift body is an automated guided vehicle (AGV), and the control terminal of the electric drive mechanism is electrically connected to the main control module of the forklift body.

[0019] In this embodiment of the invention, the mounting module can move under the control of an electric drive mechanism, thereby changing the position of the forks and the spacing between two adjacent forks, thus making it suitable for picking up materials of various widths.

[0020] The installation module is moved by an electric drive mechanism instead of hydraulic or pneumatic drive. Therefore, there is no hydraulic oil leakage during the operation of the electric drive mechanism, which improves the safety of the forklift device during use.

[0021] These features and advantages of this utility model will be disclosed in detail in the following specific embodiments and accompanying drawings. The preferred embodiments or means of this utility model will be shown in detail in conjunction with the accompanying drawings, but are not intended to limit the technical solutions of this utility model. In addition, each of these features, elements and components appearing in the following text and drawings is multiple and is labeled with different symbols or numbers for convenience, but all represent parts with the same or similar structure or function. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings:

[0023] Figure 1 This is a schematic diagram of the fork device provided in an embodiment of the present utility model, wherein four forks form two groups for carrying two groups of materials;

[0024] Figure 2 This is a schematic diagram of the fork device provided in an embodiment of the present utility model, wherein four forks form a group for carrying a group of materials;

[0025] Figure 3 This is a schematic diagram of the forklift device provided in an embodiment of the present invention, wherein four forks form a group for carrying a group of materials, and Figure 3 The spacing between the forks is less than Figure 2 The spacing between the forks in the middle;

[0026] Figure 4This is a schematic diagram of the fork device provided in an embodiment of the present invention, wherein four forks form two groups for carrying one group of materials.

[0027] Explanation of reference numerals in the attached figures

[0028] 100: Forklift base frame 200: Forks

[0029] 211: First basic guide block; 212: Basic guide rod

[0030] 213: Auxiliary guide block; 214: Edge guide rod

[0031] 215: Second basic guide block; 300: Installation module

[0032] 410, 420, 430, 440: Electric linear actuators

[0033] 211a: First anti-slip stop; 214a: Second anti-slip stop Detailed Implementation

[0034] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described are intended to explain this utility model and should not be construed as limiting it.

[0035] The terms "an embodiment," "example," or "trademark" used in this specification refer to a particular feature, structure, or characteristic described in connection with the embodiment itself that may be included in at least one embodiment disclosed in this utility model. The phrase "in an embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment.

[0036] As a first aspect of this utility model, a fork assembly is provided, which includes a fork base 100 and a plurality of forks 200, wherein the number of forks 200 is not less than three. The fork base 100 is used to connect to the forklift body.

[0037] The fork assembly may further include an electric fork spacing adjustment component, which includes an electric drive mechanism and multiple mounting modules. The electric drive mechanism is mounted on the fork base 100, and the multiple mounting modules are arranged sequentially along the width direction of the fork base 100. The electric drive mechanism is used to control the movement of each mounting module along the width direction of the fork base 100. Multiple forks 200 correspond one-to-one with multiple mounting modules 300, and the forks 200 are fixedly connected to the corresponding mounting modules.

[0038] In this embodiment of the utility model, the installation module 300 can move under the control of the electric drive mechanism, thereby changing the position of the forks 200 and the spacing between two adjacent forks 200, thus making it suitable for picking up materials of various widths.

[0039] The installation module is moved by an electric drive mechanism instead of hydraulic or pneumatic drive. Therefore, there is no hydraulic oil leakage during the operation of the electric drive mechanism, which improves the safety of the forklift device during use.

[0040] In this embodiment of the invention, the specific type of forklift body is not specifically limited. For example, the forklift body can be a traditional forklift or an Automated Guided Vehicle (AGV). When the forklift body is an AGV, the electric drive mechanism can be driven by the main control module of the forklift body, thereby improving the compactness of the overall forklift structure.

[0041] As an optional implementation, the electric drive mechanism includes multiple electric actuators, each corresponding to one of the mounting modules. The electric actuators are arranged at intervals along the height direction of the fork base 100, and the extension / retraction direction of the electric actuators is consistent with the width direction of the fork base 100.

[0042] The mounting end of the electric actuator is fixedly mounted on the fork base frame 100, and the telescopic end of the electric actuator is fixedly connected to the corresponding mounting module.

[0043] The overall structure of the electric actuator is a rod-shaped structure, with multiple electric actuators arranged in parallel and sequentially along the height direction of the fork base frame 100, which can save installation space.

[0044] It should be noted that the mounting end of the electric actuator is typically equipped with a drive motor. That is, the size of the mounting end of the electric actuator is larger than the size of its telescopic end. To reduce installation space, optionally, the mounting ends of two adjacent electric actuators are located at opposite ends of the width of the forklift frame.

[0045] For example, if the mounting end of the tallest electric actuator is located on the left side of the fork frame, the mounting end of the adjacent electric actuator is located on the right side of the fork frame.

[0046] To improve the stability of the forks 200 during movement, the electric drive mechanism may optionally include at least one set of guide sub-mechanisms. Specifically, the guide sub-mechanisms include a first basic guide block 211, a basic guide rod 212, multiple auxiliary guide blocks 213, multiple edge guide rods 214, and two second basic guide blocks 215. The length direction of the basic guide rod 212 and the length direction of the edge guide rods 214 are both consistent with the width direction of the fork base 100. The basic guide rod 212 and the multiple edge guide rods 214 are arranged sequentially at intervals along the height direction of the fork base 100.

[0047] The first basic guide block 211 is fixed on the fork base 100, and the two second basic guide blocks 215 are respectively fixed on the two middle forks among the plurality of forks 200. The basic guide rod 212 cooperates with the first basic guide block 211 and the two second basic guide blocks 215; the basic guide rod 212 cooperates with the first basic guide block 211 and the two second basic guide blocks, and the basic guide rod 212 can move along its own length direction under the guidance and limitation of the first basic guide block 211 and the two basic guide blocks 215.

[0048] Multiple auxiliary guide blocks 213 correspond one-to-one with multiple forks 200, and the auxiliary guide blocks 213 are set on the corresponding forks 200. In the multiple forks 200 other than the two forks 200 connected by the basic guide rod 212, the auxiliary guide blocks 213 on any two adjacent forks 200 are connected to the corresponding edge guide rods 214.

[0049] The edge guide rod 214 cooperates with the corresponding auxiliary guide block 213, and the edge guide rod 214 can move along its own length direction under the guidance and limitation of the corresponding auxiliary guide block 213.

[0050] By setting the base guide rod 212 and multiple edge guide rods 214, the interval between any two adjacent forks 200 can be adjusted.

[0051] In this embodiment of the invention, there are no special limitations on how the first basic guide block 211 and the basic guide rod 212 are matched. For example, the first basic guide block 211 can be a slider, and the basic guide rod 212 can be a guide rail.

[0052] To ensure smooth and stable sliding of the base guide rod 212, optionally, the base guide rod 212 is a cylindrical rod. Circular base guide holes are formed on the first base guide block 211 and the two second base guide blocks 215. The base guide rod 212 passes through these base guide holes and moves under their guidance. Correspondingly, the guide sub-mechanism also includes two first anti-detachment stops 211a, both of which are mounted on the fork base frame 100 and fixedly connected to both ends of the base guide rod 212. The first anti-detachment stops 211a prevent the ends of the base guide rod 212 from detaching from the base guide holes of the two second base guide blocks. When the base guide rod 212 moves the first anti-detachment stops 211a until they contact the adjacent second base guide block 215, the base guide rod 212 is prevented from detaching from the second base guide block 215.

[0053] To further improve the smoothness and stability of the movement of the base guide rod 212, lubricating oil can be provided in the base guide hole. To avoid contaminating the working environment, the guide sub-mechanism may optionally include a base bushing and two auxiliary bushings. The base bushing is fitted into the base guide hole in the first base guide block, and the two auxiliary bushings are disposed in the base guide holes of the two second base guide blocks. The base guide rod passes through the base bushing and the two auxiliary bushings.

[0054] Similarly, the edge guide rod 214 can also be a cylindrical rod, and correspondingly, a circular auxiliary guide hole is formed on the auxiliary guide block 213. The end of the edge guide rod 214 passes through the corresponding auxiliary guide hole, and a second anti-detachment stop 214a is formed at the end of the edge guide rod 214; the edge guide rod 214 can move under the guidance of the corresponding edge guide hole. When the end of the edge guide rod 214 moves to align with the outer surface of the corresponding auxiliary guide block 213, the second anti-detachment stop 214a prevents the edge guide rod 214 from detaching from the auxiliary guide block 213.

[0055] Lubricating oil can be provided in the auxiliary guide hole to improve the smoothness and stability of the relative movement between the edge guide rod 214 and the auxiliary guide block 213. Furthermore, the guide sub-mechanism may also include multiple auxiliary bushings, each corresponding to a specific auxiliary guide block 213. The auxiliary bushings are disposed in the auxiliary guide holes of the corresponding auxiliary guide blocks, and the edge guide rod 214 passes through the corresponding auxiliary bushing.

[0056] To stably support multiple forks 200, the electric drive mechanism may optionally include two sets of guide sub-mechanisms, which are spaced apart along the height direction of the fork base 100.

[0057] In this embodiment of the utility model, the specific structure of the forks is not specifically limited. For example... Figures 1 to 4 As shown, the forks are roughly L-shaped.

[0058] In the embodiment shown in the figure, the fork assembly includes four forks 200. Correspondingly, the electric drive mechanism includes four electric actuators (electric actuator 410, electric actuator 420, electric actuator 430 and electric actuator 440, respectively).

[0059] The telescopic end of the electric actuator 410 is fixedly connected to the mounting module of the leftmost fork 200; the telescopic end of the electric actuator 420 is fixedly connected to the mounting module 300 of the rightmost fork 200; the telescopic end of the electric actuator 430 is fixedly connected to the mounting module of the second fork 200 from the left; and the electric actuator 440 is fixedly connected to the mounting module 300 of the second fork from the right.

[0060] like Figure 1 As shown, the interval between the two forks 200 on the left is the first interval, the interval between the two forks 200 on the right is also the first interval, and the interval between the two forks 200 in the middle is the second interval. The second interval is greater than the first interval, so that the fork device can pick up two materials.

[0061] exist Figure 1 Based on the state shown, the electric actuator 410 shortens, which, through the mounting module fixed to the leftmost fork 200, moves the leftmost fork 200 to the right, and the two leftmost auxiliary guide blocks 213 slide along their respective edge guide rods 214 until the leftmost fork 200 and the second fork 200 from the left are joined together. Simultaneously, the electric actuator 420 shortens, which, through the mounting module fixed to the rightmost fork 200, moves the rightmost fork 200 to the left, and the two rightmost auxiliary guide blocks 213 slide along their respective edge guide rods 214 until the rightmost fork 200 and the second fork 200 from the right are joined together. Finally, as shown... Figure 2 As shown, the two forks 200 on the left and the two forks 200 on the right are brought together, which can pick up a material with a relatively small width.

[0062] exist Figure 2 Based on the state shown, the electric actuators 410, 420, 430, and 440 are extended, with all four actuators extending to the same length. This allows for synchronized leftward movement of the two left forks 200 and synchronized rightward movement of the two right forks 200, ultimately resulting in... Figure 3 As shown, when the two forks 200 on the left are brought together and the two forks 200 on the right are brought together, a relatively wide material can be picked up.

[0063] exist Figure 3 Based on the state shown, controlling the retraction of electric actuator 430 and electric actuator 440 can cause the second fork 200 from the left to move to the right and the second fork from the right to move to the left, ultimately as shown. Figure 4 As shown, the spacing between any two adjacent forks 200 is the same, which allows for the picking of a wider piece of material.

[0064] As a second aspect of this utility model, a forklift is provided, the forklift including a forklift body and a fork assembly, wherein the fork assembly is the fork assembly provided in the first aspect of this utility model, and the fork frame is disposed on the forklift body.

[0065] In this embodiment of the invention, the mounting module can move under the control of the electric drive mechanism, thereby changing the position of the forks 200 and the spacing between two adjacent forks 200, thus making it suitable for picking up materials of various widths.

[0066] The installation module is moved by an electric drive mechanism instead of hydraulic or pneumatic drive. Therefore, there is no hydraulic oil leakage during the operation of the electric drive mechanism, which improves the safety of the forklift device during use.

[0067] Optionally, the forklift body is an AGV, and the control terminal of the electric drive mechanism is electrically connected to the main control module of the forklift body.

[0068] The electric drive mechanism can be driven by the main control module of the forklift body, thereby improving the overall compactness of the forklift structure.

[0069] It is easy to understand that the fork frame 100 can also move along the height direction of the forklift to achieve material lifting.

[0070] The above are merely specific embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Those skilled in the art should understand that this utility model includes, but is not limited to, the contents described in the accompanying drawings and the specific embodiments above. Any modifications that do not depart from the functional and structural principles of this utility model will be included within the scope of the claims.

Claims

1. A fork assembly, the fork assembly comprising a fork base (100) and a plurality of forks (200), wherein the number of forks (200) is not less than three, and the fork base (100) is used for connection to a forklift body, characterized in that, The fork assembly further includes an electric fork spacing adjustment component, which includes an electric drive mechanism and multiple mounting modules (300). The electric drive mechanism is disposed on the fork base frame (100), and the multiple mounting modules (300) are arranged sequentially along the width direction of the fork base frame (100). The electric drive mechanism is used to control each mounting module (300) to move along the width direction of the fork base frame (100). The multiple forks correspond one-to-one with the multiple mounting modules (300), and the forks (200) are fixedly connected to the corresponding mounting modules (300).

2. The forklift device according to claim 1, characterized in that, The electric drive mechanism includes multiple electric push rods, each of which corresponds to one of the mounting modules (300). The multiple electric push rods are arranged at intervals along the height direction of the fork frame (100), and the extension and retraction direction of the electric push rods is consistent with the width direction of the fork frame (100). The mounting end of the electric actuator is fixedly mounted on the fork base frame (100), and the telescopic end of the electric actuator is fixedly connected to the corresponding mounting module (300).

3. The forklift device according to claim 2, characterized in that, The electric drive mechanism further includes at least one set of guide sub-mechanisms, which include a first basic guide block (211), a basic guide rod (212), a plurality of auxiliary guide blocks (213), a plurality of edge guide rods (214) and two second basic guide blocks (215). The length direction of the basic guide rod (212) and the edge guide rod (214) are both consistent with the width direction of the fork frame (100). The basic guide rod (212) and the plurality of edge guide rods (214) are arranged at intervals along the height direction of the fork frame (100). The first basic guide block (211) is fixed on the fork base frame (100), and the two second basic guide blocks (215) are respectively fixed on the two middle forks (200) among the plurality of forks (200). The basic guide rod (212) cooperates with the first basic guide block (211) and the second basic guide block (215). The basic guide rod (212) can move along its own length direction under the guidance and limitation of the first basic guide block (211) and the second basic guide block (215). Each of the auxiliary guide blocks (213) corresponds to one of the forks (200). The auxiliary guide blocks (213) are set on the corresponding forks (200). Except for the two forks (200) connected by the basic guide rod (212), any two adjacent forks (200) are connected by corresponding edge guide rods. The edge guide rods cooperate with the corresponding auxiliary guide blocks (213), and the edge guide rods can move along their own length direction under the guidance and limitation of the corresponding auxiliary guide blocks (213).

4. The forklift device according to claim 3, characterized in that, The basic guide rod (212) is a cylindrical rod. The first basic guide block (211) and the second basic guide block (215) are each formed with a circular basic guide hole. The basic guide rod (212) passes through each of the basic guide holes and moves under the guidance of the basic guide holes. The guide sub-mechanism also includes two first anti-detachment stops. The two first anti-detachment stops are both set on the fork base frame (100) and fixedly connected to both ends of the basic guide rod (212). The edge guide rod is a cylindrical rod, and a circular auxiliary guide hole is formed on the auxiliary guide block (213). The end of the edge guide rod passes through the corresponding auxiliary guide hole, and a second anti-detachment stop is formed at the end of the edge guide rod. The edge guide rod can move under the guidance of the corresponding edge guide hole.

5. The forklift device according to claim 4, characterized in that, The guide submechanism also includes a base bushing and two auxiliary bushings. The base bushing is fitted in the base guide hole in the first base guide block (211), and the two auxiliary bushings are fitted in the base guide holes of the two second base guide blocks (215). The base guide rod (212) passes through the base bushing and the two auxiliary bushings. The auxiliary bushings correspond one-to-one with the auxiliary guide blocks (213), the auxiliary bushings are disposed in the auxiliary guide holes of the corresponding auxiliary guide blocks, and the edge guide rods pass through the corresponding auxiliary bushings.

6. The forklift device according to claim 3, characterized in that, The electric drive mechanism includes multiple sets of guide sub-mechanisms, which are spaced apart along the height direction of the fork frame (100).

7. The forklift device according to claim 2, characterized in that, The mounting ends of two adjacent electric actuators are located at both ends of the width direction of the fork base (100).

8. The forklift device according to any one of claims 1 to 7, characterized in that, The fork assembly includes four forks (200).

9. A forklift, the forklift comprising a forklift body and a fork assembly, characterized in that, The fork assembly is the fork assembly according to any one of claims 1 to 8, and the fork base is disposed on the forklift body.

10. The forklift according to claim 9, characterized in that, The forklift body is an automated guided vehicle, and the control terminal of the electric drive mechanism is electrically connected to the main control module of the forklift body.

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