Cast cross beam type forklift portal frame

Abstract

The utility model discloses a cast beam type forklift portal frame which comprises a portal frame body and a cast beam installed on the portal frame body, the cast beam is a beam of an M-shaped structure, stand columns on the two sides of the cast beam are connected with the portal frame, and a connecting seat integrally formed with the beam of the M-shaped structure is arranged in the middle of the beam of the M-shaped structure. The integrated beam structure is cast, the welding amount is effectively reduced, the quality of finished products is improved, topological optimization is conducted on castings, weight and cost are reduced, the area for shielding the view of a cab is reduced, the structure is simple, cost is low, the quality of the finished products is easily guaranteed, and the view of a portal is effectively improved.

Description

Technical Field

[0001] This utility model relates to a forklift mast, specifically a cast beam forklift mast, and belongs to the field of forklift technology. Background Technology

[0002] Forklifts are industrial handling vehicles, referring to various wheeled handling vehicles used for loading, unloading, stacking, and short-distance transportation of palletized goods. They are widely used in ports, railway stations, airports, freight yards, factory workshops, warehouses, distribution centers, and other similar locations. They can also enter ship holds, truck beds, and containers for loading, unloading, and handling palletized goods, making them indispensable equipment in pallet and container transportation.

[0003] Forklift mast crossbeams are mechanisms used to improve the load-bearing capacity of the mast. Forklift mast crossbeam structures are generally welded from multiple plates. Currently, welded crossbeam structures for forklift masts have the following disadvantages:

[0004] 1) The amount of welding in some parts of the crossbeam is large, resulting in significant welding deformation, making it difficult to guarantee the straightness and flatness of the finished gantry frame;

[0005] 2) The crossbeam significantly obstructs the driver's field of vision;

[0006] 3) The cost is relatively high. Utility Model Content

[0007] To address the problems existing in the prior art, this utility model provides a cast beam forklift mast, which is made of alloy steel cast into an integral beam structure, effectively reducing the amount of welding, improving the quality of the finished product, and performing topology optimization on the casting to reduce weight and cost, and reducing the area that obstructs the driver's cab's field of vision. The structure is simple, the cost is low, the quality of the finished product is easy to ensure, and the visibility of the mast is effectively improved.

[0008] To achieve the above objectives, the technical solution adopted by this utility model is: a cast crossbeam forklift mast, comprising: a mast body and a cast crossbeam installed on the mast body. The cast crossbeam is an M-shaped crossbeam with columns on both sides connected to the mast. A connecting seat integrally formed with the crossbeam is provided in the middle of the M-shaped crossbeam.

[0009] Furthermore, the gantry body includes: a left channel steel beam, a right channel steel beam, and a connecting crossbeam. The left channel steel beam and the right channel steel beam are installed together by multiple connecting crossbeams to form the gantry body.

[0010] Furthermore, the grooves of the left and right channel steel beams in the gantry body are arranged opposite to each other.

[0011] Furthermore, the cast crossbeam includes: columns and V-shaped connecting beams, with two columns arranged on both sides of the V-shaped connecting beams and the connecting seat arranged at the bottom of the V-shaped connecting beams.

[0012] Furthermore, the columns on both sides of the cast crossbeam have welding bevels, which are then connected to the gantry body by welding.

[0013] Furthermore, the column and the V-shaped connecting beam, as well as the connecting seat and the V-shaped connecting beam, have a rounded transition.

[0014] Furthermore, the V-shaped connecting beam has a V-shaped gap in the middle, which divides the V-shaped connecting beam with the connecting seat into two V-shaped connecting sub-beams distributed vertically.

[0015] Furthermore, the lower end of the V-shaped connecting sub-beam located below forms a rounded transition with the column.

[0016] Furthermore, the V-shaped connecting sub-beam and column are equipped with reinforcing ribs.

[0017] Furthermore, the connecting seat is provided with positioning holes.

[0018] The beneficial effects of this utility model are: using alloy material to cast an integral crossbeam effectively reduces the amount of welding, improves the quality of finished products, and reduces manufacturing costs. Based on the rigidity of the gantry, the topology of the cast crossbeam is optimized to further reduce the weight and cost of the casting structure. The topology-optimized crossbeam structure reduces the area that obstructs the driver's field of vision and improves the gantry's field of vision. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the structure of a cast crossbeam;

[0021] In the diagram: 1. Portal frame body; 11. Left channel steel beam; 12. Right channel steel beam; 13. Connecting crossbeam; 2. Cast crossbeam; 21. Column; 22. V-shaped connecting beam; 221. V-shaped connecting sub-beam; 23. Connecting seat; 24. Reinforcing rib. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit its scope.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention.

[0024] like Figure 1-2 As shown, a cast beam forklift mast includes: mast body 1 and cast beam 2 installed on mast body 1. The cast beam 2 is an M-shaped beam with columns 21 on both sides connected to the mast. A connecting seat 23 integrally formed with the M-shaped beam is provided in the middle position of the beam.

[0025] The connecting seat 23 is provided with a positioning hole, which is used to fix the positioning column connected to the oil cylinder. The gantry body 1 is connected to the oil cylinder by a clamp.

[0026] The cast crossbeam 2 is made of alloy material.

[0027] The gantry body 1 includes: a left channel steel beam 11, a right channel steel beam 12, and a connecting crossbeam 13. The left channel steel beam 11 and the right channel steel beam 12 are assembled together by multiple connecting crossbeams 13 to form the gantry body 1. The columns 21 on both sides of the cast crossbeam 2 are respectively installed on the left channel steel beam 11 and the right channel steel beam 12. The hydraulic cylinder is installed on the connecting crossbeam by clamps to fix the hydraulic cylinder.

[0028] The grooves of the left channel steel beam 11 and the right channel steel beam 12 in the mast body 1 are arranged opposite each other for sliding installation of the forklift carriage.

[0029] The cast crossbeam 2 includes: columns 21 and V-shaped connecting beams 22. The two columns 21 are arranged on both sides of the V-shaped connecting beams 22, and the connecting seat 23 is arranged at the bottom of the V-shaped connecting beams 22.

[0030] The cast crossbeam 2 has welding bevels on both sides of the column 21, which are connected to the gantry body 1 by welding to improve the welding strength with the gantry.

[0031] The transition between the column 21 and the V-shaped connecting beam 22, and between the connecting seat 23 and the V-shaped connecting beam 22, is rounded to improve the overall strength.

[0032] The V-shaped connecting beam 22 has a V-shaped gap in the middle, which divides the V-shaped connecting beam 22 with the connecting seat 23 into two V-shaped connecting sub-beams 221 distributed vertically. The connecting seat 23 is connected to the gantry cylinder through the gap, which improves the stability of the connection and reduces the mass of the cast crossbeam 2.

[0033] The lower end of the V-shaped connecting sub-beam 221 located below forms an arc transition with the column 21, so that the V-shaped connecting sub-beam 221 located below and the column 21 form a triangular structure, thereby improving the strength of the overall structure.

[0034] The V-shaped connecting sub-beam 221 and column 21 are equipped with reinforcing ribs 24 to improve the overall strength of the structure and allow the crossbeam seat to be thinner, reducing weight.

[0035] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions or improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cast cross beam forklift mast characterized in that, include: The gantry body and the cast crossbeam installed on the gantry body are M-shaped crossbeams with columns on both sides connected to the gantry. The middle of the M-shaped crossbeam is provided with a connecting seat integrally formed with it.

2. A cast cross beam fork truck mast according to claim 1, characterized in that, The gantry body includes: a left channel steel beam, a right channel steel beam, and a connecting crossbeam. The left channel steel beam and the right channel steel beam are installed together by multiple connecting crossbeams to form the gantry body.

3. A cast cross beam fork truck mast according to claim 2, wherein, The grooves of the left and right channel steel beams in the gantry body are arranged opposite each other.

4. A cast cross-member fork truck mast according to claim 1, wherein, The cast crossbeam includes: columns and V-shaped connecting beams, with two columns arranged on both sides of the V-shaped connecting beams and the connecting seat arranged at the bottom of the V-shaped connecting beams.

5. A cast cross beam fork truck mast according to claim 4, wherein, The cast crossbeam has welding bevels on both sides of the uprights, which are connected to the gantry body by welding.

6. A cast cross beam fork truck mast according to claim 4, wherein, The column and the V-shaped connecting beam, as well as the connecting seat and the V-shaped connecting beam, have a rounded transition.

7. A cast cross beam fork truck mast according to claim 4, wherein, The V-shaped connecting beam has a V-shaped gap in the middle, which divides the V-shaped connecting beam with the connecting seat into two V-shaped connecting sub-beams distributed vertically.

8. A cast cross beam fork truck mast according to claim 7, characterized in that, The lower end of the V-shaped connecting sub-beam located below forms a rounded transition with the column.

9. A cast cross beam fork truck mast according to claim 7, wherein, The V-shaped connecting sub-beams and columns are equipped with reinforcing ribs.

10. A casting beam forklift mast according to any one of claims 1-9, characterized in that, The connector is provided with positioning holes.

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