Automatic lateral moving device of forklift portal frame

Abstract

The utility model provides an automatic lateral moving device of a forklift portal frame, and relates to the field of forklifts, the automatic lateral moving device comprises a mounting frame fixedly connected to the forklift portal frame, the mounting frame is rectangular, two guide rails are fixedly connected between the inner walls of the two ends of the mounting frame, the two guide rails are arranged in parallel, and two forks are slidably connected to the two guide rails; and a driving mechanism used for driving the two pallet forks to slide on the guide rails is arranged on the mounting frame. The forklift has the advantage that an operator can conveniently adjust the distance between the two pallet forks according to needs.

Description

Technical Field

[0001] The present application relates to the field of forklifts, and in particular to an automatic side shifting device for a forklift mast. Background Art

[0002] Forklifts refer to various wheeled handling vehicles used for loading and unloading, stacking and short-distance transportation of palletized goods. Forklifts are widely used in production operations.

[0003] In the related art, the forks of a forklift extend outward from the vehicle body, and the overall length of the forklift is the length of the vehicle body plus the length of the forks.

[0004] The Chinese patent application number CN201711395273.0 discloses a forklift, including a control device, a frame, a mast rotatably arranged on the frame, a driving device for driving the mast to rotate relative to the frame, a switch sensing device mounted on the mast, and a leveling switch mounted on the frame; in the process of the driving device driving the mast inclined relative to the ground to rotate, when the mast rotates to be perpendicular to the ground, the switch sensing device triggers the leveling switch to send a leveling signal, and the control device controls the driving device to stop driving the mast after receiving the leveling signal; the switch sensing device is located on the mast, and the leveling switch is located on the frame, and in the process of the mast inclined relative to the ground rotating, when the mast rotates to be perpendicular to the ground, the switch sensing device automatically triggers the leveling switch to send a leveling signal, and the control device automatically controls the driving device to stop driving the mast, so that the mast remains perpendicular to the ground.

[0005] During use of existing forklifts, the distance between the forks on the forklifts needs to be manually adjusted by the operator, which is troublesome to adjust. Utility Model Content

[0006] Based on this, it is necessary to provide an automatic side shifting device for a forklift mast in response to the existing technical problems.

[0007] In order to solve the existing technical problems, the technical solutions adopted in this application are:

[0008] An automatic side shift device for a forklift mast comprises a mounting frame fixedly connected to the forklift mast, the mounting frame being rectangular in shape, two guide rails being fixedly connected between inner walls at both ends of the mounting frame, the two guide rails being arranged in parallel, two forks being slidably connected to the two guide rails, and a driving mechanism being provided on the mounting frame for driving the two forks to slide on the guide rails.

[0009] Preferably, the driving mechanism includes two hydraulic cylinders fixedly connected to the mounting frame and a driving block fixedly connected to the fork, the telescopic ends of the two hydraulic cylinders are arranged opposite to each other, and the telescopic ends of the two hydraulic cylinders are respectively fixedly connected to the driving block on the fork at the other end.

[0010] Preferably, a support rod is fixedly connected between the inner walls at both ends of the mounting frame, a U-shaped block is fixedly connected to the fork, the opening of the U-shaped block is set downward, and the U-shaped block is slidably connected to the support rod.

[0011] Preferably, the cross section of the support rod is circular, the inner wall of the end of the U-shaped block away from the opening is arc-shaped, and the inner wall of the end of the U-shaped block away from the opening abuts against the outer wall of the support rod.

[0012] Preferably, the two hydraulic cylinders are respectively located on the upper and lower sides of the support rod.

[0013] Preferably, a connecting piece is provided between the guide rail and the mounting frame, and the connecting piece includes a U-shaped plate fixedly connected to the inner walls on both sides of the mounting frame, the opening of the U-shaped plate is set upward, and a slot is provided on one end of the U-shaped plate close to the opening, and an insert plate is slidably connected to the slot, and a connecting bolt is threadedly connected to the insert plate, and one end of the connecting bolt abuts against the outer wall of the guide rail.

[0014] Preferably, a limiting bolt is threadedly connected to the outer walls at both ends of the inserting plate.

[0015] Preferably, the guide rail has a circular cross-section, the inner wall of the end of the U-shaped plate away from the opening is arc-shaped, a round tube is fixedly connected to the fork, a sliding bearing is fixedly connected to the inner wall of the round tube, and the round tube is slidably connected to the outer wall of the guide rail through the sliding bearing.

[0016] Compared with the prior art, this application has the following advantages:

[0017] 1. The present application drives the driving block to move by a hydraulic cylinder, and the driving block drives the fork to slide on the guide rail. With such a setting, the structure is simple and the operation is convenient, and it is convenient for the operator to adjust the distance between the two forks as needed.

[0018] 2. In the present application, a U-shaped plate is fixedly connected to the inner wall of the mounting frame, both ends of the guide rail are placed on the U-shaped plate, the plug plate is inserted into the slot, and the connecting bolts are tightened to lock the guide rail on the U-shaped plate. This arrangement has a simple structure and is easy to operate, making it convenient for the operator to install and disassemble the guide rail. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0020] Figure numerals: 1. Mounting frame; 2. Guide rail; 3. Fork; 4. Driving mechanism; 5. Hydraulic cylinder; 6. Driving block; 7. Support rod; 8. U-shaped block; 9. Connecting piece; 10. U-shaped plate; 11. Slot; 12. Insert plate; 13. Connecting bolt; 14. Limit bolt; 15. Round tube. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0022] like Figure 1 As shown, an automatic side shift device for a forklift mast comprises a mounting frame 1, which is fixedly connected to the forklift mast, and the mounting frame 1 is rectangular. Two guide rails 2 are installed between the inner walls at both ends of the mounting frame 1, and the two guide rails 2 are arranged in parallel and the cross-section of the guide rails 2 is circular. Two forks 3 are slidably connected to the two guide rails 2, and a round tube 15 is fixedly connected to the fork 3. A sliding bearing is fixedly connected to the inner wall of the round tube 15, and the round tube 15 is slidably connected to the guide rail 2 through the sliding bearing. A support rod 7 is fixedly connected between the inner walls at both ends of the mounting frame 1, and the cross-section of the support rod 7 is circular. A U-shaped block 8 is fixedly connected to the fork 3, and the opening of the U-shaped block 8 is arranged downward, and the inner wall of the end of the U-shaped block 8 away from the opening is arranged in an arc shape.

[0023] like Figure 1 As shown, a driving mechanism 4 for driving the round tube 15 to slide on the guide rail 2 is provided on the mounting frame 1, and the driving mechanism 4 includes a hydraulic cylinder 5 and a driving block 6. The driving block 6 is fixedly connected to the fork 3, and the hydraulic cylinder 5 is fixedly connected to the mounting frame 1. Two hydraulic cylinders 5 are fixedly connected to the mounting frame 1, and the two hydraulic cylinders 5 are respectively located on the upper and lower sides of the support rod 7. The movement directions of the telescopic rods of the two hydraulic cylinders 5 are opposite, and the telescopic ends of the hydraulic cylinders 5 are fixedly connected to the driving block 6. The power source of the hydraulic cylinder 5 is the oil pump on the forklift.

[0024] like Figure 1 As shown, in order to facilitate the operator to replace the fork 3, a connecting member 9 is provided between the guide rail 2 and the mounting frame 1, and the connecting member 9 includes a U-shaped plate 10, an insert plate 12 and a connecting bolt 13. The U-shaped plate 10 is fixedly connected to the inner wall of the mounting frame 1, and the opening of the U-shaped plate 10 is set upward. The inner wall of the end of the U-shaped plate 10 away from the opening is set in an arc shape. A slot 11 is provided on the end of the U-shaped plate 10 close to the opening. The insert plate 12 is inserted into the slot 11, and the connecting bolt 13 is threadedly connected to the connecting plate. One end of the connecting bolt 13 abuts against the outer wall of the guide rail 2. In order to improve the stability of the insert plate 12 inserted in the slot 11, a limit bolt 14 is threadedly connected to both ends of the insert plate 12.

[0025] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a" does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.

[0026] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An automatic side shift device for a forklift mast, characterized in that: The invention comprises a mounting frame (1) fixedly connected to a forklift door frame, wherein the mounting frame (1) is arranged in a rectangular shape, two guide rails (2) are fixedly connected between the inner walls at both ends of the mounting frame (1), the two guide rails (2) are arranged in parallel, two forks (3) are slidably connected to the two guide rails (2), and a driving mechanism (4) for driving the two forks (3) to slide on the guide rails (2) is provided on the mounting frame (1).

2. The automatic side shift device of a forklift mast according to claim 1, characterized in that: The driving mechanism (4) comprises two hydraulic cylinders (5) fixedly connected to the mounting frame (1) and a driving block (6) fixedly connected to the cargo fork (3); the telescopic ends of the two hydraulic cylinders (5) are arranged opposite to each other, and the telescopic ends of the two hydraulic cylinders (5) are respectively fixedly connected to the driving block (6) on the cargo fork (3) at the other end.

3. The automatic side shift device of a forklift mast according to claim 2, characterized in that: A support rod (7) is fixedly connected between the inner walls at both ends of the mounting frame (1), and a U-shaped block (8) is fixedly connected to the fork (3). The opening of the U-shaped block (8) is arranged downward, and the U-shaped block (8) is slidably connected to the support rod (7).

4. The automatic side shift device for a forklift mast according to claim 3, characterized in that: The cross section of the support rod (7) is circular, the inner wall of the end of the U-shaped block (8) away from the opening is arc-shaped, and the inner wall of the end of the U-shaped block (8) away from the opening abuts against the outer wall of the support rod (7).

5. The automatic side shift device for a forklift mast according to claim 4, characterized in that: The two hydraulic cylinders (5) are respectively located on the upper and lower sides of the support rod (7).

6. The automatic side shift device for a forklift mast according to claim 1, characterized in that: A connecting member (9) is provided between the guide rail (2) and the mounting frame (1), the connecting member (9) comprising a U-shaped plate (10) fixedly connected to the inner walls on both sides of the mounting frame (1), the opening of the U-shaped plate (10) being arranged upward, a slot (11) being provided on one end of the U-shaped plate (10) close to the opening, a plug plate (12) being slidably connected in the slot (11), a connecting bolt (13) being threadedly connected to the plug plate (12), one end of the connecting bolt (13) being in contact with the outer wall of the guide rail (2).

7. The automatic side shift device for a forklift mast according to claim 6, characterized in that: A limiting bolt (14) is threadedly connected to the outer walls at both ends of the inserting plate (12).

8. The automatic side shift device for a forklift mast according to claim 7, characterized in that: The guide rail (2) is circular in cross section, the inner wall of the end of the U-shaped plate (10) away from the opening is arc-shaped, a round tube (15) is fixedly connected to the fork (3), a sliding bearing is fixedly connected to the inner wall of the round tube (15), and the round tube (15) is slidably connected to the outer wall of the guide rail (2) via the sliding bearing.

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