Assembling and correcting machine for forklift portal frame

Abstract

The utility model relates to the technical field of forklifts, and provides a forklift gantry assembling and correcting machine which comprises a bottom plate and a main plate, the main plate is located above the bottom plate, a connecting plate is fixedly connected to the position, close to the left end, of the top end of the main plate, and a bearing plate is rotationally connected to the top end of the connecting plate. An electric push rod is rotationally connected to the position, close to the right end, of the top end of the main plate, the top end of the electric push rod is rotationally connected to a bearing plate, a gradienter is installed at the top end of the bearing plate, a hydraulic rod is installed at the top end of the bearing plate, and an extrusion block is arranged at one end of the hydraulic rod; a rotating rod is rotatably connected to the interior of the rotating hole, one end of the rotating rod is fixedly connected with a mounting plate, a measuring instrument is mounted on the mounting plate, a probe is arranged on the measuring instrument, and a positioning groove matched with the extrusion block is connected to the probe, so that the purposes of keeping the measuring instrument in a horizontal state and improving the measuring precision are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of forklifts, and in particular to an assembly and correction machine for a forklift mast. Background Art

[0002] The forklift mast is the primary load-bearing structure of the forklift's loading mechanism. The mechanism for lifting cargo is also known as the gantry. It consists of an inner mast, outer mast, fork frame, forks, sprockets, chains, lifting cylinders, and tilting cylinders. Depending on the required lifting height of the forked cargo, the forklift mast can be designed with two or more stages. Common forklifts often use a two-stage mast. Most forklift masts feature a double-chain lifting chain, with either a disc chain or a bushing roller chain. During mast assembly, chains that are too long or too short can affect the forklift's performance. If one chain is loosened and the other tightened, one chain can become overloaded or unevenly loaded, causing the fork frame and inner mast to move unsteadily and inflexibly. Existing chains are often installed and adjusted based on work experience, which can easily lead to errors and affect the forklift's effective use.

[0003] After searching, China disclosed a forklift gantry assembly and correction machine with patent publication number CN215788048U on February 11, 2022. It is roughly described as including a support frame, a hydraulic rod, a motor, a mounting plate, a connecting plate, a measuring instrument and a movable plate. A hydraulic rod is provided at the upper end of the support frame, a motor is provided on one side of the hydraulic rod, a mounting plate is provided on one side of the motor, a measuring instrument and a connecting plate are provided on the outer wall of one side of the mounting plate, a movable plate is provided on one side of the mounting plate, a limit tube and a limit column are provided at the opposite end of the mounting plate and the movable plate, a stroke opening is opened inside the connecting plate, one end of the measuring instrument passes through the stroke opening, a slider is provided at the end of the movable plate opposite to the mounting plate, a slide groove is opened inside the mounting plate, and an extrusion block is provided at one end of the hydraulic rod.

[0004] Although the above-mentioned prior art solution effectively avoids the problem of manual installation and correction of the chain, which is prone to errors, when the device is used on an uneven ground, it cannot keep the measuring instrument and the extrusion block in a horizontal state, resulting in reduced measurement accuracy of the chain. Utility Model Content

[0005] (1) Technical problems solved

[0006] In response to the shortcomings of the existing technology, the utility model provides an assembly and correction machine for a forklift mast to solve the problem raised in the background technology that when used on an uneven ground, the measuring instrument and the extrusion block cannot be kept in a horizontal state, resulting in reduced measurement accuracy of the chain.

[0007] (2) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an assembly and correction machine for a forklift door frame, comprising a base plate and a main board, the main board being located above the base plate, the top of the main board being fixedly connected to a connecting plate near the left end, the top of the connecting plate being rotatably connected to a carrying plate, the top of the main board being rotatably connected to an electric push rod near the right end, the top of the electric push rod being rotatably connected to the carrying plate, a spirit level being installed at the top of the carrying plate, a hydraulic rod being installed at the top of the carrying plate, an extrusion block being provided at one end of the hydraulic rod, a fixing plate being fixedly connected to the fixing plate, a rotating hole being provided on the fixing plate, a rotating rod being rotatably connected inside the rotating hole, one end of the rotating rod being fixedly connected to a mounting plate, a measuring instrument being installed on the mounting plate, a probe being provided on the measuring instrument, and a positioning groove matching the extrusion block being connected to the probe.

[0009] By adopting the above technical solution, the equipment is moved to the measuring position, and the rotating rod is rotated to drive the mounting plate and the measuring instrument to rotate, so that the measuring instrument drives the probe and the positioning slot to rotate to the rear of the measuring chain. The hydraulic rod is started to push the extrusion block to move, so that the extrusion block drives the chain to move, and the chain drives the positioning slot and the probe to move. The measuring instrument measures the chain data according to the distance the probe moves, thereby avoiding the problem of manual installation and correction of the chain, which is easy to cause errors. When the ground is uneven, the electric push rod is started to drive the bearing plate to rotate along the connecting plate. The staff judges whether the bearing plate has reached a horizontal state by observing the spirit level, thereby ensuring that the measuring instrument remains in a horizontal state, thereby achieving the purpose of improving measurement accuracy.

[0010] Optionally, one end of the supporting plate is fixedly connected to an extension plate, and one end of the extension plate is fixedly connected to a blocking plate that matches the mounting plate.

[0011] By adopting the above technical solution, the blocking plate is used to block the mounting plate to prevent the mounting plate from rotating excessively, thereby keeping the mounting plate in a horizontal state during use.

[0012] Optionally, the top end of the supporting plate is fixedly connected to a limiting sleeve, and the limiting sleeve is sleeved on the rotating rod.

[0013] By adopting the above technical solution, the limiting sleeve is used to limit the rotating rod, thereby preventing the rotating rod from deflecting, thereby achieving the purpose of improving the stability of the equipment.

[0014] Optionally, a plurality of evenly distributed telescopic rods are provided between the main board and the base plate, threaded holes are provided on the main board, a servo motor is installed on the top of the base plate, a threaded rod is provided at the output end of the servo motor, and the threaded rod is threadedly connected to the threaded hole.

[0015] By adopting the above technical solution, the servo motor is started to drive the threaded rod to rotate, and the threaded rod drives the main board to move. The telescopic rod is used to prevent the main board from rotating, so as to adjust the height of the main board and the height of the measuring instrument, so that the equipment can be suitable for forklifts of different heights, thereby achieving the purpose of improving the universality of the equipment.

[0016] Optionally, universal wheels are provided at the four corners of the bottom end of the base plate.

[0017] By adopting the above technical solution, the universal wheels are used to facilitate the movement of the equipment, thereby achieving the purpose of improving the flexibility of the equipment.

[0018] (3) Beneficial effects

[0019] In summary, the present invention has at least one of the following beneficial technical effects:

[0020] 1. The assembly and correction machine of the forklift mast moves the equipment to the measuring position, rotates the rotating rod to drive the mounting plate and the measuring instrument to rotate, so that the measuring instrument drives the probe and the positioning slot to rotate to the rear of the measuring chain, and starts the hydraulic rod to push the extrusion block to move, so that the extrusion block drives the chain to move, and the chain drives the positioning slot and the probe to move. The measuring instrument measures the chain data according to the distance the probe moves, thereby avoiding the problem of manual installation and correction of the chain, which is easy to cause errors. When the ground is uneven, start the electric push rod to drive the load-bearing plate to rotate along the connecting plate. The staff judges whether the load-bearing plate has reached a horizontal state by observing the spirit level, thereby ensuring that the measuring instrument remains horizontal, thereby achieving the purpose of improving measurement accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a first side structural diagram of the present invention;

[0022] Figure 2 This is a second side structural diagram of the present invention;

[0023] Figure 3 For this utility model Figure 2 Schematic diagram of the local enlarged structure at A in the middle;

[0024] Figure 4 This is a third side structural schematic diagram of the present invention.

[0025] In the figure: 1. Base plate; 2. Main plate; 3. Connecting plate; 4. Load-bearing plate; 5. Electric push rod; 6. Level; 7. Hydraulic rod; 8. Extrusion block; 9. Fixed plate; 10. Rotating rod; 11. Mounting plate; 12. Measuring instrument; 13. Probe; 14. Positioning slot; 15. Extension plate; 16. Stop plate; 17. Limit sleeve; 18. Telescopic rod; 19. Servo motor; 20. Threaded rod; 21. Universal wheel. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] The present invention will be further described in detail below with reference to the accompanying drawings.

[0028] Reference Figure 1 and Figure 2 , an assembly and correction machine for a forklift door frame, comprising a base plate 1, a main board 2, the main board 2 is located above the base plate 1, the top of the main board 2 is fixedly connected to a connecting plate 3 near the left end, the top of the connecting plate 3 is rotatably connected to a carrying plate 4, the top of the main board 2 is rotatably connected to an electric push rod 5 near the right end, the top of the electric push rod 5 is rotatably connected to the carrying plate 4, a level 6 is installed on the top of the carrying plate 4, a hydraulic rod 7 is installed on the top of the carrying plate 4, one end of the hydraulic rod 7 is provided with an extrusion block 8, the top of the carrying plate 4 is fixedly connected to a fixing plate 9, a rotating hole is opened on the fixing plate 9, the inside of the rotating hole is rotatably connected to a rotating rod 10, one end of the rotating rod 10 is fixedly connected to a mounting plate 11, a measuring instrument 12 is installed on the mounting plate 11, the measuring instrument 12 is provided with a probe 13, the probe 13 It is connected to a positioning slot 14 that cooperates with the extrusion block 8. Move the equipment to the measuring position, rotate the rotating rod 10 to drive the mounting plate 11 and the measuring instrument 12 to rotate, so that the measuring instrument 12 drives the probe 13 and the positioning slot 14 to rotate to the rear of the measuring chain, start the hydraulic rod 7 to push the extrusion block 8 to move, so that the extrusion block 8 pushes the chain to move, and the chain drives the positioning slot 14 and the probe 13 to move. The measuring instrument 12 measures the chain data according to the distance moved by the probe 13, thereby avoiding the problem of manual installation and correction of the chain, which is prone to errors. When the ground is uneven, start the electric push rod 5 to drive the bearing plate 4 to rotate along the connecting plate 3. The staff judges that the bearing plate 4 reaches a horizontal state by observing the spirit level 6, thereby ensuring that the measuring instrument 12 remains in a horizontal state, thereby achieving the purpose of improving the measurement accuracy.

[0029] Reference Figure 4 One end of the supporting plate 4 is fixedly connected to an extension plate 15, and one end of the extension plate 15 is fixedly connected to a blocking plate 16 that cooperates with the mounting plate 11. The blocking plate 16 is used to block the mounting plate 11 to prevent the mounting plate 11 from rotating excessively, so that the mounting plate 11 remains in a horizontal state during use.

[0030] Reference Figure 2 and Figure 3The top of the supporting plate 4 is fixedly connected to a limiting sleeve 17, which is sleeved on the rotating rod 10. The limiting sleeve 17 is used to limit the rotating rod 10 to prevent the rotating rod 10 from deflecting, thereby achieving the purpose of improving the stability of the equipment.

[0031] Reference Figure 1 A plurality of evenly distributed telescopic rods 18 are provided between the main board 2 and the base plate 1. A threaded hole is provided on the main board 2. A servo motor 19 is installed on the top of the base plate 1. A threaded rod 20 is provided at the output end of the servo motor 19. The threaded rod 20 is threadedly connected to the threaded hole. The servo motor 19 is started to drive the threaded rod 20 to rotate, and the threaded rod 20 drives the main board 2 to move. The telescopic rod 18 is used to prevent the main board 2 from rotating, thereby adjusting the height of the main board 2, and thereby adjusting the height of the measuring instrument 12, so that the equipment is suitable for forklifts of different heights, thereby achieving the purpose of improving the universality of the equipment.

[0032] Reference Figure 1 Universal wheels 21 are provided at the four corners of the bottom end of the base plate 1. The universal wheels 21 are used to facilitate the movement of the equipment, thereby achieving the purpose of improving the flexibility of the equipment.

[0033] In summary, the working principle and working process of the assembly correction machine for the forklift mast are as follows: when in use, first move the equipment to the measuring position, rotate the rotating rod 10 to drive the mounting plate 11 and the measuring instrument 12 to rotate, so that the measuring instrument 12 drives the probe 13 and the positioning groove 14 to rotate to the rear of the measuring chain, start the hydraulic rod 7 to push the extrusion block 8 to move, so that the extrusion block 8 drives the chain to move, and the chain drives the positioning groove 14 and the probe 13 to move, and the measuring instrument 12 measures the chain data according to the distance moved by the probe 13, thereby avoiding the problem of manual installation and correction of the chain, which is easy to cause errors. When the ground is uneven, start the electric push rod 5 to drive the bearing plate 4 to rotate along the connecting plate 3, and the staff judges that the bearing plate 4 reaches a horizontal state by observing the level 6, thereby ensuring that the measuring instrument 1 2 maintains a horizontal state to achieve the purpose of improving measurement accuracy. The blocking plate 16 is used to block the mounting plate 11 to prevent the mounting plate 11 from rotating excessively, so that the mounting plate 11 remains in a horizontal state during use. The limiting sleeve 17 is used to limit the rotating rod 10 to prevent the rotating rod 10 from deflecting, so as to achieve the purpose of improving the stability of the equipment. The servo motor 19 is started to drive the threaded rod 20 to rotate, and the threaded rod 20 drives the main board 2 to move. The telescopic rod 18 is used to prevent the main board 2 from rotating, so as to adjust the height of the main board 2 and the height of the measuring instrument 12, so that the equipment is suitable for forklifts of different heights, so as to achieve the purpose of improving the universality of the equipment. The universal wheel 21 is used to facilitate the movement of the equipment, so as to achieve the purpose of improving the flexibility of the equipment.

[0034] The above-described embodiments merely represent specific implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the scope of the present invention, all of which fall within the scope of protection of the present invention.

Claims

1. An assembly and correction machine for a forklift mast, comprising a base plate (1), characterized in that: The invention comprises a main board (2), the main board (2) being located above the bottom board (1), the top of the main board (2) being fixedly connected to a connecting plate (3) near the left end, the top of the connecting plate (3) being rotatably connected to a bearing plate (4), the top of the main board (2) being rotatably connected to an electric push rod (5) near the right end, the top of the electric push rod (5) being rotatably connected to the bearing plate (4), the top of the bearing plate (4) being installed with a level (6), the top of the bearing plate (4) being installed with a hydraulic rod (7), one end of the hydraulic rod (7) being provided with an extrusion block (8), the top of the bearing plate (4) being fixedly connected to a fixing plate (9), a rotating hole being provided on the fixing plate (9), the inside of the rotating hole being rotatably connected to a rotating rod (10), one end of the rotating rod (10) being fixedly connected to a mounting plate (11), a measuring instrument (12) being installed on the mounting plate (11), a probe (13) being provided on the measuring instrument (12), and a positioning groove (14) being connected to the probe (13) matching the extrusion block (8).

2. The forklift mast assembly and calibration machine according to claim 1, characterized in that: One end of the bearing plate (4) is fixedly connected to an extension plate (15), and one end of the extension plate (15) is fixedly connected to a blocking plate (16) that matches the mounting plate (11).

3. The forklift mast assembly and calibration machine according to claim 1, characterized in that: The top end of the bearing plate (4) is fixedly connected to a limiting sleeve (17), and the limiting sleeve (17) is sleeved on the rotating rod (10).

4. The forklift mast assembly and calibration machine according to claim 1, characterized in that: A plurality of evenly distributed telescopic rods (18) are provided between the main board (2) and the bottom board (1), threaded holes are provided on the main board (2), a servo motor (19) is installed at the top end of the bottom board (1), and a threaded rod (20) is provided at the output end of the servo motor (19), and the threaded rod (20) is threadedly connected to the threaded hole.

5. The forklift mast assembly and calibration machine according to claim 1, characterized in that: Universal wheels (21) are provided at the four corners of the bottom end of the base plate (1).

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