Transverse high-resistance forklift portal frame

Abstract

The utility model discloses a transverse high-resistance forklift portal frame, which belongs to the technical field of forklift portal frames and comprises an outer portal frame, a mounting frame is fixedly connected to one side of the bottom of the outer portal frame, lifting hydraulic cylinders are fixedly connected to two sides of the top of the mounting frame, and connecting seats are fixedly connected to the tops of the lifting hydraulic cylinders. And a lifting chain unit is arranged at the top of the connecting seat. According to the chain cleaning device, the chain in the moving process is cleaned through the cleaning block, smooth operation of the chain in the lifting process can be guaranteed, faults and shutdown time caused by the chain problem are reduced, and smooth operation and long-term reliability of the forklift portal frame are effectively improved; and in the rotating process of the cam, air in the air bag is conveyed into an air conveying frame through an air conveying pipe, then the air is sprayed to the surfaces of the chain and the cleaning block through a plurality of air outlets, and the cleaning effect of the product on the chain is further improved.

Description

Technical Field

[0001] This utility model belongs to the field of forklift mast technology, and particularly relates to a lateral high-resistance forklift mast. Background Technology

[0002] The forklift mast is the main load-bearing structure of the forklift's lifting device. It typically consists of two columns and a crossbeam, on which forks are mounted for inserting, lifting, moving, or stacking goods. The forklift mast is an important component of the forklift, and its design and structure have a significant impact on the forklift's stability, load-bearing capacity, and operational efficiency.

[0003] For example, Chinese patent document (CN219792399U) describes a forklift mast, which includes an inner mast. The inner mast is an integrally formed channel steel. The inner mast includes a first wing plate and a second wing plate. A connecting plate is fixedly connected between the first wing plate and the second wing plate. Connecting parts are fixedly provided between the first wing plate and the connecting plate, and between the second wing plate and the connecting plate. A connecting surface is formed on the side of the connecting part away from the connecting plate. The connecting surface forms an angle with the side of the connecting plate near the connecting part. This application has the effect of improving the lateral load bearing capacity of the inner mast and increasing the structural strength of the inner mast. However, during the use of this product, dust and moisture in the air may adhere to the surface of the chain, which will affect the smoothness and reliability of the chain over a long period of time. Therefore, improvements are needed. Utility Model Content

[0004] The purpose of this invention is to address the problem that dust and moisture in the air may adhere to the chain surface during use, which can affect the smoothness and reliability of the chain over a long period of time. Therefore, this invention proposes a transversely high-resistance forklift mast.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A transverse high-resistance forklift mast includes an outer mast, a mounting bracket fixedly connected to one side of the bottom of the outer mast, lifting hydraulic cylinders fixedly connected to both sides of the top of the mounting bracket, a connecting seat fixedly connected to the top of the lifting hydraulic cylinder, a lifting chain unit provided on the top of the connecting seat, and a mounting box provided at the bottom of the lifting chain unit. The mounting box contains a cleaning component and a lubrication component.

[0007] The cleaning component includes a drive motor and a cavity. One end of the output shaft of the drive motor is fixedly connected to a rotating shaft. A cam is fixedly connected to the outer periphery of the rotating shaft. A first sliding plate is provided on one side of the cam. An airbag is fixedly connected to the other side of the first sliding plate. An air supply pipe is connected to one side of the airbag. The other end of the air supply pipe extends to the outside of the mounting box and is connected to an air supply frame. Multiple air outlets are connected to the bottom of the air supply frame. A cleaning block is provided directly below the air supply frame.

[0008] As a further description of the above technical solution:

[0009] The airbag is provided with a first spring on both sides, and the first spring is fixedly connected to one side of the first slide plate and the inner wall of the mounting box on both sides respectively.

[0010] As a further description of the above technical solution:

[0011] The rotating shaft is located inside the cavity, which is situated at the center of the mounting box. The rotating shaft is rotatably connected to the inside of the mounting box.

[0012] As a further description of the above technical solution:

[0013] The mounting box has a first through hole and a second through hole on its two sides. The chain inside the lifting chain unit is slidably connected inside the first through hole and the second through hole. The air supply frame and the cleaning block are on the same axis as the first through hole, and the air supply frame and the cleaning block are sleeved on the outside of the chain inside the lifting chain unit.

[0014] As a further description of the above technical solution:

[0015] The output end of the lifting hydraulic cylinder passes through the connecting seat and is connected to the inner gantry via the top seat. The inner gantry is slidably connected inside the outer gantry.

[0016] As a further description of the above technical solution:

[0017] The lubrication assembly includes a second slide plate, which is slidably connected inside the mounting box. An oil bladder is fixedly connected to one side of the second slide plate, and the side of the oil bladder away from the second slide plate is fixedly connected to the inner wall of the mounting box.

[0018] As a further description of the above technical solution:

[0019] One side of the oil bladder is connected to an oil supply pipe, and the other end of the oil supply pipe is connected to an oil outlet frame. Multiple oil injection ports are connected to the inner circumference of the oil outlet frame.

[0020] As a further description of the above technical solution:

[0021] The oil bladder is provided with a second spring on both sides. The two sides of the second spring are fixedly connected to one side of the second slide plate and the inner wall of the mounting box, respectively. The oil outlet frame and the second through hole are on the same axis, and the oil outlet frame is sleeved on the outside of the chain inside the lifting chain unit.

[0022] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0023] 1. In this utility model, the cleaning components enable the cleaning blocks to clean the chain during movement, ensuring smooth chain operation during lifting and lowering, reducing malfunctions and downtime caused by chain problems, and effectively improving the smooth operation and long-term reliability of the forklift mast. The drive motor drives the rotating shaft and cam to rotate, and the cam, during rotation, delivers the gas inside the airbag to the air delivery frame through the air pipe, and then sprays it onto the chain and cleaning block surface through multiple air outlets, further improving the product's cleaning effect on the chain.

[0024] 2. In this utility model, the lubrication component is set to make the cam rotate and deliver the lubricating oil inside the oil bladder to the oil outlet frame through the oil supply pipe. Then, it is evenly sprayed onto the chain surface through the oil spray nozzle to improve the lubrication performance of the chain, reduce the wear between the chain and the sprocket, and thus improve the service life of the chain. This also helps to improve the high resistance and reliability of the product during use. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0026] Figure 2 In this utility model Figure 1 A magnified schematic diagram of the structure at point A;

[0027] Figure 3 This is a three-dimensional structural diagram of the mounting box in this utility model;

[0028] Figure 4 In this utility model Figure 3 A magnified schematic diagram of the structure at point B.

[0029] Legend:

[0030] 1. Outer mast; 2. Inner mast; 3. Mounting bracket; 4. Lifting hydraulic cylinder; 5. Connecting seat; 6. Lifting chain unit; 7. Mounting box; 8. Cleaning assembly; 801. Cavity; 802. Drive motor; 803. Rotary shaft; 804. Cam; 805. First slide plate; 806. First spring; 807. Airbag; 808. Air supply pipe; 809. Air supply frame; 810. Air outlet; 811. Cleaning block; 9. Lubrication assembly; 901. Second slide plate; 902. Oil bladder; 903. Second spring; 904. Oil supply pipe; 905. Oil outlet frame; 906. Oil injection port. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0032] Please see Figures 1-4 This utility model provides a technical solution: a transverse high-resistance forklift mast, including an outer mast 1, a mounting bracket 3 fixedly connected to one side of the bottom of the outer mast 1, lifting hydraulic cylinders 4 fixedly connected to both sides of the top of the mounting bracket 3, a connecting seat 5 fixedly connected to the top of the lifting hydraulic cylinder 4, a lifting chain unit 6 provided on the top of the connecting seat 5, a mounting box 7 provided at the bottom of the lifting chain unit 6, and a cleaning component 8 and a lubrication component 9 respectively provided inside the mounting box 7;

[0033] Cleaning component 8 includes a drive motor 802 and a cavity 801. One end of the output shaft of the drive motor 802 is fixedly connected to a rotating shaft 803. A cam 804 is fixedly connected to the outer periphery of the rotating shaft 803. A first sliding plate 805 is provided on one side of the cam 804. An airbag 807 is fixedly connected to the other side of the first sliding plate 805. An air supply pipe 808 is connected to one side of the airbag 807. The other end of the air supply pipe 808 extends to the outside of the mounting box 7 and is connected to an air supply frame 809. Multiple air outlets 810 are connected to the bottom of the air supply frame 809. A cleaning block 811 is provided directly below the air supply frame 809. First springs 806 are provided on both sides of the airbag 807. The two sides of the first springs 806 are fixedly connected to one side of the first sliding plate 805 and the inner wall of the mounting box 7, respectively. The rotating shaft 803 is located inside the cavity 801, which is located at the center of the mounting box 7. The rotating shaft 803 is rotatably connected inside the mounting box 7. The mounting box 7 has a first through hole and a second through hole on both sides. The chain inside the lifting chain unit 6 is slidably connected inside the first through hole and the second through hole. The air supply frame 809 and the cleaning block 811 are on the same axis as the first through hole, and the air supply frame 809 and the cleaning block 811 are sleeved on the outside of the chain inside the lifting chain unit 6. The output end of the lifting hydraulic cylinder 4 passes through the connecting seat 5 and is connected to the inner mast 2 through the top seat. The inner mast 2 is slidably connected inside the outer mast 1. The air bag 807 is connected to an air inlet pipe on one side. One-way valves are provided on both the air inlet pipe and the air supply pipe 808.

[0034] Detailed Implementation: First, connect the outer mast 1 to an external forklift. The external forklift then moves the outer mast 1, causing the lifting hydraulic cylinder 4 to move the lifting chain unit 6 upwards via the connecting seat 5. The lifting chain unit 6, through its internal chain, moves the forks on one side of the outer mast 1 upwards. At this time, the cleaning block 811 cleans the chain during the movement, ensuring smooth chain operation during lifting and lowering, reducing malfunctions and downtime caused by chain problems, and effectively improving the forklift's performance. To ensure smooth operation and long-term reliability of the gantry, the drive motor 802 is activated as needed. The drive motor 802 drives the rotating shaft 803 and cam 804 to rotate. During the rotation, the cam 804 compresses the first slide plate 805, the first spring 806, and the airbag 807, and delivers the gas inside the airbag 807 to the air supply frame 809 through the air supply pipe 808. Then, the gas is sprayed onto the surface of the chain and the cleaning block 811 through multiple air outlets 810, further improving the cleaning effect of the product on the chain.

[0035] The lubrication assembly 9 includes a second slide plate 901, which is slidably connected inside the mounting box 7. An oil bladder 902 is fixedly connected to one side of the second slide plate 901. The side of the oil bladder 902 away from the second slide plate 901 is fixedly connected to the inner wall of the mounting box 7. An oil supply pipe 904 is connected to one side of the oil bladder 902. An oil outlet frame 905 is connected to the other end of the oil supply pipe 904. Multiple oil spray nozzles 906 are connected to the inner circumference of the oil outlet frame 905. A second spring 903 is provided on both sides of the oil bladder 902. The two sides of the second spring 903 are fixedly connected to one side of the second slide plate 901 and the inner wall of the mounting box 7, respectively. The oil outlet frame 905 and the second through hole are on the same axis, and the oil outlet frame 905 is sleeved on the outside of the chain inside the lifting chain unit 6.

[0036] Detailed implementation: During rotation, the cam 804 simultaneously compresses the second slide plate 901, the oil bladder 902, and the second spring 903, delivering the lubricating oil inside the oil bladder 902 to the oil outlet frame 905 through the oil supply pipe 904. Then, it is evenly sprayed onto the chain surface through the oil spray nozzle 906 to improve the chain's lubrication performance, reduce wear between the chain and sprocket, thereby increasing the chain's service life and enhancing the product's high resistance and reliability during use.

[0037] Working principle: In use, first connect the outer mast 1 to an external forklift. The external forklift moves the outer mast 1, and the lifting hydraulic cylinder 4 drives the lifting chain unit 6 upward through the connecting seat 5. The lifting chain unit 6 then drives the forks on one side of the outer mast 1 upward through its internal chain. At this time, the cleaning block 811 cleans the chain during the movement. As needed, the drive motor 802 is started, which drives the rotating shaft 803 and the cam 804 to rotate. During the rotation, the cam 804 cleans the chain. A slide plate 805, a first spring 806, and an air bladder 807 are compressed, and the gas inside the air bladder 807 is transported to the air supply frame 809 through the air supply pipe 808. Then, it is sprayed onto the surface of the chain and the cleaning block 811 through multiple air outlets 810. During the rotation of the cam 804, the second slide plate 901, the oil bladder 902, and the second spring 903 are compressed simultaneously, and the lubricating oil inside the oil bladder 902 is transported to the oil outlet frame 905 through the oil supply pipe 904. Then, it is evenly sprayed onto the surface of the chain through the oil spray nozzle 906 to improve the service life of the chain.

[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A laterally highly resistant fork lift mast comprising an outer mast (1), characterized in that: The bottom side of the outer gantry (1) is fixedly connected with a mounting rack (3), the top sides of the mounting rack (3) are fixedly connected with lifting hydraulic cylinders (4), the top of the lifting hydraulic cylinder (4) is fixedly connected with a connecting seat (5), the top of the connecting seat (5) is provided with a lifting chain unit (6), the bottom of the lifting chain unit (6) is provided with a mounting box (7), and the mounting box (7) is provided with a cleaning assembly (8) and a lubricating assembly (9) respectively. The cleaning assembly (8) comprises a driving motor (802) and a cavity (801), one end of the output shaft of the driving motor (802) is fixedly connected with a rotating shaft (803), the outer circumferential side of the rotating shaft (803) is fixedly connected with a cam (804), one side of the cam (804) is provided with a first sliding plate (805), the other side of the first sliding plate (805) is fixedly connected with an air bag (807), one side of the air bag (807) is communicated with a gas conveying pipe (808), the other end of the gas conveying pipe (808) extends to the outside of the mounting box (7) and is communicated with a wind conveying frame (809), a plurality of air outlets (810) are communicated with the bottom of the wind conveying frame (809), and a cleaning block (811) is arranged directly below the wind conveying frame (809).

2. A high resistance forklift mast as defined in claim 1, characterized in that: The air bag (807) is provided with a first spring (806) on both sides, and the first spring (806) is fixedly connected with the first sliding plate (805) on one side and the inner wall of the mounting box (7) on the other side.

3. A high resistance forklift mast as defined in claim 2, wherein: The rotating shaft (803) is arranged in the cavity (801), and the cavity (801) is located at the center of the inside of the mounting box (7), and the rotating shaft (803) is rotatably connected in the inside of the mounting box (7).

4. A high resistance forklift mast as defined in claim 3, wherein: First and second through holes are respectively formed in the inside of the mounting box (7), the chain in the lifting chain unit (6) is slidably connected in the first and second through holes, the wind conveying frame (809) and the cleaning block (811) are on the same axis as the first through hole, and the wind conveying frame (809) and the cleaning block (811) are arranged on the outside of the chain in the lifting chain unit (6).

5. A high resistance forklift mast as defined in claim 4, wherein: The output end of the lifting hydraulic cylinder (4) is provided with an inner gantry (2) through the connecting seat (5) and the top seat, and the inner gantry (2) is slidably connected in the inside of the outer gantry (1).

6. A high resistance forklift mast as defined in claim 5, wherein: The lubricating assembly (9) comprises a second sliding plate (901), the second sliding plate (901) is slidably connected in the inside of the mounting box (7), the oil bag (902) is fixedly connected with the second sliding plate (901) on one side, and the oil bag (902) is fixedly connected with the inner wall of the mounting box (7) on the side away from the second sliding plate (901).

7. A high resistance forklift mast as defined in claim 6, wherein: One side of the oil bag (902) is communicated with an oil conveying pipe (904), the other end of the oil conveying pipe (904) is communicated with an oil outlet frame (905), and the inner circumferential side of the oil outlet frame (905) is communicated with a plurality of oil injection ports (906).

8. A high resistance forklift mast according to claim 7, characterized in that: The oil bag (902) is provided with a second spring (903) on both sides, the two sides of the second spring (903) are fixedly connected with one side of the second sliding plate (901) and the inner wall of the mounting box (7) respectively, the oil outlet frame (905) and the second through hole are on the same axis, and the oil outlet frame (905) is sleeved outside the chain inside the lifting chain unit (6).

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