Side shifter and forklift

Abstract

The utility model belongs to the technical field of forklifts, and particularly relates to a side shifter and a forklift. The side shifter comprises a side shifting frame, a stator, an electromagnetic coil and a rotor, and the side shifting frame can be in sliding connection with the pallet fork frame and is used for mounting a pallet fork; the stator is arranged on the lateral moving frame, and a sliding hole penetrating in the axis direction of the stator is formed in the stator; the electromagnetic coil is arranged on the stator; the mover penetrates through the sliding hole in a sliding mode, and the two ends, in the axis direction of the sliding hole, of the mover are both located outside the sliding hole and used for being connected with a fork arm carrier. The electromagnetic coil is electrified and can drive the rotor to move in the axis direction of the sliding hole, and therefore the side moving frame and the pallet fork installed on the side moving frame are driven to move relative to the pallet fork frame. A hydraulic oil cylinder is replaced by the combination of the stator, the electromagnetic coil and the rotor, hydraulic force is replaced by electromagnetic force to drive the lateral moving frame to move laterally, accurate control over the pallet fork can be achieved, and meanwhile intelligent control over the pallet fork can be achieved without other parts. In addition, the environmental protection property is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of forklifts, in particular to a side shifter and a forklift. Background Art

[0002] A forklift is a versatile, flexible and efficient material handling equipment. Normally, a forklift is standardly equipped with a pair of forks, which are mainly used to hold and support goods placed on pallets, and then the forklift's own lifting, tilting and other actions are used to achieve stacking, loading and unloading of goods. A side shifter is a commonly used accessory on a forklift. In the existing technology, most of the side shifters are driven by a cylinder to shift the side shifter to the left and right. When a forklift uses a side shifter to transport goods, it relies on the force of the cylinder to move the side shifter to complete the operation. The shortcomings of the existing technology are that the micro-motion performance is not high due to the hydraulic pressure as the driving force, and precise control cannot be achieved; and intelligent control cannot be directly achieved, and it needs to be matched with an electric proportional valve to achieve it; in addition, hydraulic oil is polluted and is not very environmentally friendly. Utility Model Content

[0003] The purpose of the utility model is to provide a side shifter and a forklift, which can realize precise control of the fork and intelligent control of the fork without the need for other components; in addition, the side shifter and the forklift are more environmentally friendly.

[0004] To achieve this purpose, the present invention adopts the following technical solutions:

[0005] Sideshifter, including:

[0006] Side shift frame, which can be slidably connected to the fork frame and is used to install the forks;

[0007] A stator is provided on the side shift frame, and a sliding hole is provided on the stator that passes through along the axis direction of the stator;

[0008] an electromagnetic coil, disposed on the stator;

[0009] The mover is slidably arranged in the sliding hole, and both ends of the mover along the axis direction of the sliding hole are located outside the sliding hole and are used to be connected to the fork frame.

[0010] As a preferred technical solution of the side shifter, an annular cavity surrounding the sliding hole is provided in the stator, and the electromagnetic coil is distributed in the annular cavity.

[0011] As a preferred technical solution of the side shifter, both ends of the mover along the axis direction of the sliding hole are provided with mounting blocks, and the mounting blocks are used to be connected to the fork frame.

[0012] As a preferred technical solution of the side shifter, a mounting plate is provided on the side shift frame, and the stator is provided on the mounting plate.

[0013] As an optimal technical solution for the side shifter, an upper guide rail is provided at the top of the side shift frame, and a lower guide rail is provided at the bottom of the side shift frame. The extension directions of the upper guide rail and the lower guide rail are parallel to the axial direction of the sliding hole, and the upper guide rail and the lower guide rail are both used for sliding connection with the fork frame.

[0014] As an optimal technical solution for the side shifter, the cross-section of the upper guide rail is S-shaped, and the upper guide rail includes a first hook groove opening downward and a second hook groove opening upward, the first hook groove is used for sliding connection with the fork frame, and the second hook groove is used for sliding connection with the fork.

[0015] As a preferred technical solution of the side shifter, the lower guide rail includes a plurality of guide blocks, and the plurality of guide blocks are spaced apart along the axial direction of the sliding hole.

[0016] As an optimal technical solution for the side shifter, the side shift frame includes the upper guide rail, the lower beam, the left connecting member and the right connecting member, the left connecting member and the right connecting member are both connected between the upper guide rail and the lower beam, the upper guide rail, the lower beam, the left connecting member and the right connecting member form a frame, the stator is connected to the upper guide rail and is located in the frame, and the lower guide rail is arranged on the lower beam.

[0017] As a preferred technical solution for the side shifter, reinforcement members are connected between the upper guide rail and the left connecting member, between the upper guide rail and the right connecting member, between the lower beam and the left connecting member, and between the lower beam and the right connecting member.

[0018] A forklift comprises a fork frame, a fork and a side shifter as described in any of the above schemes, wherein the side shift frame is slidably connected to the fork frame, both ends of the mover along the axis of the sliding hole are connected to the fork frame, and the fork is slidably connected to the side shift frame.

[0019] Beneficial effects of the utility model:

[0020] The utility model provides a side shifter, comprising a side shift frame, a stator, an electromagnetic coil and a mover, wherein the side shift frame can be slidably connected to the fork frame and is used to install the fork; the stator is arranged on the side shift frame, and a sliding hole is provided on the stator that passes through along its own axial direction; the electromagnetic coil is arranged on the stator; the mover slides through the sliding hole, and both ends of the mover along the axial direction of the sliding hole are located outside the sliding hole and are used to connect to the fork frame. When the electromagnetic coil is energized, it can drive the mover to move along the axial direction of the sliding hole. Since the side shift frame is slidably connected to the fork frame, and the two ends of the mover are fixedly connected to the fork frame, the mover can drive the side shift frame and the fork mounted on the side shift frame to move relative to the fork frame when it moves. By replacing the hydraulic cylinder with the combination of the stator, the electromagnetic coil and the mover, and using electromagnetic force instead of hydraulic pressure to drive the side shift frame to move sideways, precise control of the fork can be achieved, and intelligent control of the fork can be achieved without the need for other components; in addition, it is more environmentally friendly.

[0021] The utility model also provides a forklift comprising a fork frame, a fork, and the aforementioned side shifter, wherein the side shifter is slidably connected to the fork frame, and both ends of the mover along the axis of the sliding hole are connected to the fork frame, and the fork is slidably connected to the side shifter. By adopting the aforementioned side shifter, precise control of the fork can be achieved, and intelligent control of the fork can be achieved without the need for other components; in addition, it is more environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the side shifter provided by the utility model.

[0023] In the picture:

[0024] 10. Side shift frame; 11. Upper guide rail; 111. First hook slot; 112. Second hook slot; 12. Lower guide rail; 121. Guide block; 13. Lower beam; 14. Left connector; 15. Right connector; 16. Mounting plate;

[0025] 21. Stator; 22. Mover; 23. Mounting block. DETAILED DESCRIPTION

[0026] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.

[0027] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0028] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0029] In the description of this embodiment, the terms "upper," "lower," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0030] like Figure 1 As shown, the utility model provides a side shifter for connecting a fork frame and a fork, and the side shifter can drive the fork to move left and right relative to the fork frame. The side shifter includes a side shift frame 10, a stator 21, an electromagnetic coil (not shown in the figure) and a mover 22, wherein the side shift frame 10 can be slidably connected to the fork frame and is used to install the fork; the stator 21 is arranged on the side shift frame 10, and the stator 21 is provided with a sliding hole that passes through along its own axis; the electromagnetic coil is arranged on the stator 21; the mover 22 is slidably inserted into the sliding hole, and both ends of the mover 22 along the axis of the sliding hole are located outside the sliding hole, and are both used to connect to the fork frame.

[0031] When the electromagnetic coil is energized, it drives mover 22 along the axis of the sliding hole. Since the side-shift frame 10 is slidably connected to the fork frame, and both ends of mover 22 are fixedly connected to the fork frame, movement of mover 22 drives the side-shift frame 10 and the fork mounted thereon relative to the fork frame. By replacing the hydraulic cylinder with electromagnetic force instead of hydraulic pressure to drive the side-shift frame 10, precise control of the fork is achieved, while also enabling intelligent control of the fork without the need for additional components. Furthermore, this system is more environmentally friendly.

[0032] In this embodiment, an annular cavity surrounding the sliding hole is provided within the stator 21. The electromagnetic coil is disposed within the annular cavity, enabling the magnetic field generated by the electromagnetic coil to directly act on the mover 22 and provide protection for the electromagnetic coil. In other embodiments, the electromagnetic coil may also be disposed directly outside the stator 21, and this embodiment is not limited thereto.

[0033] In this embodiment, mounting blocks 23 are provided at both ends of the mover 22 along the axis of the sliding hole. These mounting blocks 23 are used to connect to the fork frame. The provision of mounting blocks 23 facilitates connection to the fork frame and reduces the structural requirements for the mover 22. In other embodiments, the mover 22 may also be directly connected to the fork frame, and this embodiment is not limited thereto.

[0034] In this embodiment, a mounting plate 16 is provided on the side shift frame 10, and the stator 21 is mounted on the mounting plate 16. The provision of the mounting plate 16 facilitates securing the stator 21, reducing structural requirements for the stator 21. In other embodiments, the stator 21 can be directly connected to the side shift frame 10, and this embodiment is not limiting.

[0035] In this embodiment, an upper guide rail 11 is provided at the top of the side shift frame 10, and a lower guide rail 12 is provided at the bottom of the side shift frame 10. The extension directions of the upper guide rail 11 and the lower guide rail 12 are parallel to the axial direction of the sliding hole, and the upper guide rail 11 and the lower guide rail 12 are both used for sliding connection with the fork frame.

[0036] In this embodiment, the upper guide rail 11 has an S-shaped cross-section and includes a downwardly opening first hook slot 111 and an upwardly opening second hook slot 112. The first hook slot 111 is configured to slide with the fork carriage, while the second hook slot 112 is configured to slide with the fork, resulting in a more optimized structure. In other embodiments, the first hook slot 111 and the second hook slot 112 may not be connected to form the S-shape, and the present embodiment is not limiting.

[0037] In this embodiment, the lower guide rail 12 includes a plurality of guide blocks 121, and the plurality of guide blocks 121 are spaced apart along the axis of the sliding hole. In other embodiments, the lower guide rail 12 can also be an integral guide rail, and is not limited to this embodiment.

[0038] Furthermore, the upper guide rail 11 and the lower guide rail 12 are both made of wear-resistant material, which enhances the sliding properties of the upper guide rail 11 and the lower guide rail 12 and reduces the sliding wear of the upper guide rail 11 and the lower guide rail 12 .

[0039] In this embodiment, the side shift frame 10 includes an upper guide rail 11, a lower beam 13, a left connecting member 14 and a right connecting member 15. The left connecting member 14 and the right connecting member 15 are both connected between the upper guide rail 11 and the lower beam 13. The upper guide rail 11, the lower beam 13, the left connecting member 14 and the right connecting member 15 form a frame. The mounting plate 16 is connected to the upper guide rail 11 and is located in the frame. The stator 21 is arranged on the mounting plate 16, and the lower guide rail 12 is arranged on the lower beam 13. The structural distribution is simple and reasonable.

[0040] Furthermore, to improve the strength of the side shift frame 10 , reinforcement members are connected between the upper guide rail 11 and the left connecting member 14 , between the upper guide rail 11 and the right connecting member 15 , between the lower beam 13 and the left connecting member 14 , and between the lower beam 13 and the right connecting member 15 .

[0041] The present invention also provides a forklift comprising a fork frame, a fork, and the aforementioned side shifter, wherein the side shifter frame 10 is slidably connected to the fork frame, the mover 22 is connected to the fork frame at both ends along the axis of the sliding hole, and the fork is slidably connected to the side shifter frame 10. The use of the aforementioned side shifter enables precise control of the fork, while also enabling intelligent control of the fork without the need for other components, and is also more environmentally friendly.

[0042] Obviously, the above-described embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the manner in which the present invention is to be implemented. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. Side shifter, characterized in that, include: A side shift frame (10) capable of being slidably connected to the fork frame and used for mounting the forks; A stator (21) is provided on the side shift frame (10), and a sliding hole is provided on the stator (21) that passes through along its own axis direction; an electromagnetic coil, arranged on the stator (21); A mover (22) is slidably arranged in the sliding hole. Both ends of the mover (22) along the axis direction of the sliding hole are located outside the sliding hole and are used to be connected to the fork frame.

2. The side shifter according to claim 1, characterized in that An annular cavity is provided in the stator (21) and is distributed around the sliding hole, and the electromagnetic coil is distributed in the annular cavity.

3. The side shifter according to claim 1, characterized in that Both ends of the mover (22) along the axis direction of the sliding hole are provided with mounting blocks (23), and the mounting blocks (23) are used to be connected to the fork frame.

4. The side shifter according to claim 1, characterized in that A mounting plate (16) is provided on the side shift frame (10), and the stator (21) is provided on the mounting plate (16).

5. The side shifter according to any one of claims 1 to 4, characterized in that: An upper guide rail (11) is provided at the top of the side shift frame (10), and a lower guide rail (12) is provided at the bottom of the side shift frame (10). The extension directions of the upper guide rail (11) and the lower guide rail (12) are parallel to the axial direction of the sliding hole. The upper guide rail (11) and the lower guide rail (12) are both used for sliding connection with the fork frame.

6. The side shifter according to claim 5, characterized in that The cross section of the upper guide rail (11) is S-shaped. The upper guide rail (11) comprises a first hook groove (111) opening downward and a second hook groove (112) opening upward. The first hook groove (111) is used for sliding connection with the fork frame, and the second hook groove (112) is used for sliding connection with the fork.

7. The side shifter according to claim 5, characterized in that The lower guide rail (12) comprises a plurality of guide blocks (121), and the plurality of guide blocks (121) are distributed at intervals along the axial direction of the sliding hole.

8. The side shifter according to claim 5, characterized in that The side shift frame (10) comprises an upper guide rail (11), a lower beam (13), a left connecting member (14) and a right connecting member (15); the left connecting member (14) and the right connecting member (15) are both connected between the upper guide rail (11) and the lower beam (13); the upper guide rail (11), the lower beam (13), the left connecting member (14) and the right connecting member (15) form a frame; the stator (21) is connected to the upper guide rail (11) and is located in the frame; the lower guide rail (12) is arranged on the lower beam (13).

9. The side shifter according to claim 8, characterized in that Reinforcements are connected between the upper guide rail (11) and the left connecting member (14), between the upper guide rail (11) and the right connecting member (15), between the lower beam (13) and the left connecting member (14), and between the lower beam (13) and the right connecting member (15).

10. A forklift, characterized in that It comprises a fork frame, a fork and a side shifter as described in any one of claims 1 to 9, wherein the side shift frame (10) is slidably connected to the fork frame, both ends of the mover (22) along the axis of the sliding hole are connected to the fork frame, and the fork is slidably connected to the side shift frame (10).

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