Wheel nut dismounting and mounting device

Abstract

The utility model discloses a wheel nut dismounting device, which relates to a tire dismounting device and comprises a forklift, two fork arms of the forklift are jointly provided with a fixing frame, the fixing frame is provided with a liftable upper cross beam, the upper cross beam is provided with a rotatable mounting plate, and the mounting plate is provided with an automatic wrench. Carrier rollers are further installed at the extending ends of the two fork arms of the forklift. The wheel nut dismounting device can automatically dismount the nut on the wheel, is simple to operate, and greatly reduces the labor intensity of workers.

Description

Technical Field

[0001] This utility model relates to a tire disassembly device, specifically, to a wheel nut disassembly and assembly device. Background Technology

[0002] Bolted connections are a widely used, reliable, and detachable connection method. To ensure the reliability of bolted connections, the tightening torque of the nuts should be properly controlled. Excessive tightening torque may damage the threaded connection, reducing its load-bearing capacity and service life; conversely, insufficient tightening torque may compromise the connection's reliability, leading to failure. Therefore, properly controlling the tightening torque is a prerequisite for ensuring the safety and reliability of threaded connections during assembly.

[0003] Currently, tire removal involves two main parts: first, the removal and installation of tire nuts, and second, the removal and installation of the tire itself. For the removal and installation of tire nuts, there are currently three methods: (1) using handheld removal tools; (2) using traditional impact-type vehicle tire nut removal machines; and (3) using a regular wrench with a lever.

[0004] In other words, there is currently no specialized machinery to perform the disassembly and assembly of wheels and tires; it all relies on manual labor. These methods share common problems: firstly, they are labor-intensive; secondly, they are inefficient; and more importantly, they cannot solve the problem of removing and installing tires from the drive axle. Furthermore, due to the large size and weight of the tires, two people are required to complete the disassembly and assembly process.

[0005] In response to the current situation and in light of the need for rapid tire replacement in vehicle maintenance, a wheel nut removal and installation device that can automatically remove and install the nuts on the wheels is urgently needed. Utility Model Content

[0006] The purpose of this utility model is to provide a wheel nut removal and installation device that can automatically remove and install nuts on wheels. It is simple to operate and greatly reduces the labor intensity of workers.

[0007] To achieve the purpose of this utility model, the technical solution adopted is as follows: a wheel nut removal and installation device, including a forklift, a fixing frame is also installed on the two forks of the forklift, a liftable upper crossbeam is installed on the fixing frame, a rotatable mounting plate is installed on the upper crossbeam, and an automatic wrench is installed on the mounting plate; rollers are also installed on the extended ends of the two forks of the forklift.

[0008] Furthermore, the fixing frame includes two columns respectively, with the two ends of the upper crossbeam slidably mounted on the two columns, and a lower crossbeam is also mounted on both columns. A lifting element that can drive the upper crossbeam to rise and fall is mounted on the lower crossbeam.

[0009] Furthermore, vertically extending guide grooves are provided on the two columns, and X-axis screws extending outward through the guide grooves are installed at both ends of the upper crossbeam. Locking nuts that can be locked to the columns are installed at the extended ends of the X-axis screws.

[0010] Furthermore, there are two lifting elements, which are located at both ends of the lower crossbeam. Each lifting element is a Z-axis screw that is rotatably supported on the lower crossbeam and is threadedly engaged with the upper crossbeam.

[0011] Furthermore, a handle is installed at the upper end of the Z-axis screw.

[0012] Furthermore, a sleeve is also installed on the upper crossbeam, and a rotatable shaft is installed inside the sleeve, with a mounting plate installed on the shaft.

[0013] Furthermore, there are two automatic wrenches mounted on the mounting plate.

[0014] Furthermore, the mounting plate also has a laser for tire positioning.

[0015] Furthermore, the automatic wrench is an electric wrench.

[0016] Furthermore, the forklift is also equipped with a toolbox.

[0017] Furthermore, the forklift is a manual hydraulic forklift.

[0018] The beneficial effects of this utility model are:

[0019] In use, the two forks of this invention are inserted into the sides of the wheel. At this time, the rollers on the forks do not lift the wheel. With the up-and-down movement of the crossbeam, the height of the automatic wrench corresponds to the height of the nut on the wheel. Then, the forklift is pushed so that the automatic wrench engages with the nut on the wheel. Finally, the automatic wrench removes the nut from the wheel. When another nut on the wheel needs to be tightened, the forklift is pulled back slightly. Then, the mounting plate is rotated so that the automatic wrench on the mounting plate aligns with another nut on the wheel. The forklift is pushed so that the automatic wrench engages with the nut on the wheel. The automatic wrench removes the bolt that is engaged with it. This process is repeated. When installing a wheel, place the wheel on the idler roller, push the forklift to align the wheel with the axle, and continue pushing the forklift until the wheel is fitted onto the axle. The bolt on the axle passes through the bolt hole on the wheel, and the nut is fitted onto the bolt. Lower the forklift arm, removing the wheel from the support of the idler roller. Then push the forklift to engage the automatic wrench with the nut on the wheel, pre-tightening it. Next, pull the forklift slightly outward, rotate the mounting plate to align the automatic wrench on the mounting plate with another nut on the wheel, and push the forklift to engage the automatic wrench with the nut on the wheel, pre-tightening it. Repeat this process until all the nuts on the wheel are pre-tightened. Repeat the above steps until all nuts are fully tightened, then remove the forklift.

[0020] This invention allows for the disassembly and assembly of wheels to be completed by a single person. It is simple to operate, highly efficient, and greatly reduces the labor intensity of workers. Attached Figure Description

[0021] The accompanying drawings illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the principles of the present invention. These drawings are included to provide a further understanding of the present invention and are incorporated in and constitute a part of this specification.

[0022] Figure 1 This is a front view of the wheel nut disassembly and assembly device provided by this utility model;

[0023] Figure 2 This is a side view of the wheel nut removal and installation device provided by this utility model.

[0024] The attached diagram shows the markings and corresponding component names:

[0025] 1. Forklift, 2. Mounting frame, 3. Upper crossbeam, 4. Lower crossbeam, 5. X-axis screw, 6. Locking nut, 7. Z-axis screw, 8. Handle, 9. Sleeve, 10. Shaft, 11. Mounting plate, 12. Automatic wrench, 13. Laser, 14. Idler roller;

[0026] 101. Fork arm;

[0027] 201. Column; 202. Guide groove. Detailed Implementation

[0028] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be noted that, for ease of description, only the parts relevant to the present invention are shown in the accompanying drawings.

[0029] It should be noted that, where there is no conflict, the embodiments and features described in these embodiments can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0030] like Figure 1 , Figure 2 As shown, the present invention provides a wheel nut removal and installation device, including a forklift 1. A fixing frame 2 is also mounted on both fork arms 101 of the forklift 1. The fixing frame 2 extends vertically upward on both fork arms 101, and an upper crossbeam 3 is also mounted on the fixing frame 2. The upper crossbeam 3 can be raised and lowered on the fixing frame 2 to adjust its height. A rotatable mounting plate 11 is also mounted on the upper crossbeam 3. An automatic wrench 12 is mounted on the mounting plate 11. The central axis of the automatic wrench 12 is not on the same straight line as the rotation center of the mounting plate 11. The distance between the central axis of the automatic wrench 12 and the rotation center of the mounting plate 11 is equal to the distance between the center of the wheel hub and the center of the bolt hole on the wheel. When the rotation center of the mounting plate 11 corresponds to the center of the wheel hub, rotating the mounting plate 11 allows the automatic wrench 12 to correspond to the nut on the wheel, thus enabling the automatic wrench 12 to correspond to the nut on the wheel when it needs to be installed or removed.

[0031] Both fork arms 101 of the forklift 1 are equipped with idler rollers 14. The idler rollers 14 can rotate fully on the fork arms 101, and the axial direction of the fork arms 101 is consistent with the axial direction of the idler rollers 14. Based on the extension direction of the fork arms 101, the idler rollers 14 are located in front of the fixed frame 2.

[0032] In use, the two forks 101 of the forklift 1 are inserted into the sides of the wheel. At this time, the rollers 14 on the fork 101 do not lift the wheel. With the up and down movement of the crossbeam 3, the height of the automatic wrench 12 corresponds to the height of the nut on the wheel. Then, the forklift 1 is pushed so that the automatic wrench 12 engages with the nut on the wheel. Finally, the automatic wrench 12 removes the nut from the wheel. When another nut on the wheel needs to be tightened, the forklift 1 is pulled slightly outward. Then, the mounting plate 11 is rotated so that the automatic wrench 12 on the mounting plate 11 aligns with another nut on the wheel. The forklift 1 is pushed so that the automatic wrench 12 engages with the nut on the wheel. The automatic wrench 12 removes the bolt that is engaged with it. This process is repeated. When it is necessary to install a wheel, place the wheel to be installed on the idler roller 14, push the forklift 1 to align the wheel with the axle, continue pushing the forklift 1 to fit the wheel onto the axle, pass the bolt on the axle through the bolt hole on the wheel, and put the nut on the bolt. Lower the fork arm 101, and the wheel loses the support of the idler roller 14 on the fork arm 101. Then push the forklift 1 to engage the automatic wrench 12 with the nut on the wheel, and the automatic wrench 12 pre-tightens the nut. Next, pull the forklift 1 slightly outward, rotate the mounting plate 11 to align the automatic wrench 12 on the mounting plate 11 with another nut on the wheel, push the forklift 1 to engage the automatic wrench 12 with the nut on the wheel, and the automatic wrench 12 pre-tightens the nut. Repeat this process until all the nuts on the wheel are pre-tightened, repeat the above steps until all the nuts are tightened, and then the forklift 1 is withdrawn.

[0033] In this utility model, in order to ensure the lifting and lowering of the upper crossbeam 3, the fixing frame 2 includes two columns 201. The two columns 201 are respectively fixed to the two fork arms 101 with bolts. The two ends of the upper crossbeam 3 are respectively slidably installed on the two columns 201, so that both ends of the upper crossbeam 3 can slide along the axial direction of the columns 201. At the same time, the two columns 201 are also jointly fixed with a lower crossbeam 4. The lower crossbeam 4 is located below the upper crossbeam 3. Lifting elements are also installed on the lower crossbeam 4. There are two lifting elements, which are respectively located at both ends of the lower crossbeam 4. The two lifting elements drive the two ends of the upper crossbeam 3, thereby enabling the upper crossbeam 3 to lift and lower.

[0034] To ensure that both ends of the upper crossbeam 3 slide against the two columns 201, guide grooves 202 are provided on both columns 201. The guide grooves 202 extend along the axis of the columns 201, and X-axis screws 5 are installed at both ends of the upper crossbeam 3. The diameter of the X-axis screws 5 matches the width of the guide grooves 202, and the X-axis screws 5 extend outward through the guide grooves 202. The cooperation between the guide grooves 202 and the X-axis screws 5 ensures both the vertical movement of the upper crossbeam 3 and guides its downward movement. To keep the upper crossbeam 3 in a fixed position after vertical movement, a locking nut 6 is installed at the extended end of the X-axis screw 5. When the locking nut 6 is tightened, it presses against the columns 201, thus locking the columns 201 and the upper crossbeam 3. A handwheel is fixed to the locking nut 6 for easy tightening.

[0035] To ensure the lifting and lowering of the upper crossbeam 3, the lifting element includes a Z-axis screw 7 rotatably supported on the lower crossbeam 4. The upper crossbeam 3 has a threaded hole that engages with the Z-axis screw 7. When the Z-axis screw 7 rotates, the engagement between the Z-axis screw 7 and the upper crossbeam 3 drives the upper crossbeam 3 to move up and down, thereby adjusting the height of the automatic wrench 12. When the height of the automatic wrench 12 is adjusted to a fixed height, the rotation of the Z-axis screw 7 is stopped, and the locking nuts 6 located at both ends of the upper crossbeam 3 are tightened, thereby locking the position of the upper crossbeam 3 and keeping the height of the automatic wrench 12 stable after adjustment.

[0036] In this invention, to facilitate the driving of the Z-axis screw 7, a handle 8 can be fixed on the Z-axis screw 7, allowing the operator to drive the Z-axis screw 7 to rotate via the handle 8, making the driving of the Z-axis screw 7 more convenient.

[0037] In this invention, to facilitate the installation and rotation adjustment of the automatic wrench 12, a sleeve 9 is fixedly installed on the upper crossbeam 3. A rotatable shaft 10 is installed inside the sleeve 9. The axis of the shaft 10 is aligned with the axis of the fork arm 101, and a mounting plate 11 is fixed to one end of the shaft 10 near the idler roller 14. The automatic wrench 12 is fixedly mounted on the mounting plate 11. When the shaft 10 rotates, it drives the mounting plate 11 to rotate synchronously, causing the automatic wrench 12 on the mounting plate 11 to rotate synchronously. After tightening the first nut on the wheel, the automatic wrench 12 can be aligned with the next nut by rotating the shaft 10, thus facilitating the tightening of all nuts on the wheel.

[0038] To prevent the shaft 10 from axial displacement during rotation, an annular groove can be made on the inner wall of the bushing, and a convex ring that mates with the annular groove can be provided on the outer wall of the shaft 10. The mate between the annular groove and the convex ring can effectively prevent the shaft 10 from axial displacement during rotation.

[0039] To improve the efficiency of wheel assembly and disassembly, two automatic wrenches 12 are mounted on the mounting plate 11. Based on the rotation center of the mounting plate 11, the two automatic wrenches 12 are located on the same circumference, and the distance between the automatic wrench 12 and the rotation center of the mounting plate 11, and the distance between the wheel center and the locking nuts of the wheel, are equal. Simultaneously, based on the rotation center of the mounting plate 11, the included angle between the two automatic wrenches 12 is equal to the included angle between two adjacent nuts on the wheel, or the included angle between the two automatic wrenches 12 is equal to the included angle between any two nuts on the wheel. Since the multiple locking nuts of the wheel are evenly spaced along the circumference of the wheel, both automatic wrenches 12 can complete the assembly and disassembly of the wheel, regardless of whether the included angle between the two automatic wrenches 12 is equal to the included angle between two adjacent nuts on the wheel or the included angle between any two nuts on the wheel.

[0040] To facilitate quick alignment of the automatic wrench 12 with the nut, a laser 13 can be installed on the mounting plate 11 to position the wheel. In this invention, there can be one laser 13, located at the rotation center of the mounting plate 11. When the laser 13 aligns with the wheel center, the nut on the wheel and the automatic wrench 12 are on the same circumference. Simply push the forklift 1 and rotate the shaft 10 to quickly align the automatic wrench 12 with the nut on the wheel. Alternatively, there can be multiple lasers 13, arranged circumferentially around the rotation center of the mounting plate 11. The distance between the laser 13 and the rotation center of the mounting plate 11 is equal to the distance between the wheel edge and the wheel center. When all lasers 13 align with the wheel edge, the rotation center of the mounting plate 11 and the wheel center are on the same straight line. Simply push the forklift 1 and rotate the shaft 10 to quickly align the automatic wrench 12 with the nut on the wheel.

[0041] In this invention, the automatic wrench 12 is preferably an electric wrench; to facilitate the storage of tools during wheel disassembly and assembly, a toolbox can also be installed on the forklift 1, specifically, the toolbox can be installed on the fork arm 101. In this invention, the forklift 1 can be a manual hydraulic forklift 1, and the forklift 1 is a direct use of existing technology. The fork arm 101 can move up and down through the pump head, with a simple structure and convenient operation.

[0042] When it is necessary to remove the wheel, insert the two forks 101 of the forklift 1 into both sides of the wheel. At this time, the rollers 14 on the forks 101 do not lift the wheel. With the help of the laser 13 on the mounting plate 11, adjust the position of the forklift 1 by pushing and pulling, and with the up and down movement of the crossbeam 3, make the height of the automatic wrench 12 correspond to the height of the nut on the wheel. When the laser 13 is aligned with the wheel, push the forklift 1 so that the automatic wrench 12 engages with the nut on the wheel. Finally, the automatic wrench 12 removes the nut from the wheel. When it is necessary to tighten another nut on the wheel, pull the forklift 1 slightly outward. Then, rotate the mounting plate 11 so that the automatic wrench 12 on the mounting plate 11 corresponds to another nut on the wheel. Push the forklift 1 so that the automatic wrench 12 engages with the nut on the wheel. The automatic wrench 12 removes the bolt that is engaged with it. Repeat this process.

[0043] When it is necessary to install a wheel, place the wheel to be installed on the idler roller 14, push the forklift 1 to align the wheel with the axle, continue pushing the forklift 1 to fit the wheel onto the axle, pass the bolt on the axle through the bolt hole on the wheel, and put the nut on the bolt. Lower the fork arm 101, and the wheel loses the support of the idler roller 14 on the fork arm 101. Then push the forklift 1 to engage the automatic wrench 12 with the nut on the wheel, and the automatic wrench 12 pre-tightens the nut. Next, pull the forklift 1 slightly outward, rotate the mounting plate 11 to align the automatic wrench 12 on the mounting plate 11 with another nut on the wheel, push the forklift 1 to engage the automatic wrench 12 with the nut on the wheel, and the automatic wrench 12 pre-tightens the nut. Repeat this process until all the nuts on the wheel are pre-tightened, repeat the above steps until all the nuts are tightened, and then the forklift 1 is withdrawn.

[0044] In the description of this specification, the references to terms such as "one embodiment / mode," "some embodiments / modes," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment / mode or example is included in at least one embodiment / mode or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment / mode or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments / modes or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments / modes or examples described in this specification, as well as the features of different embodiments / modes or examples.

[0045] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0046] Those skilled in the art should understand that the above embodiments are merely for clearly illustrating the present invention and are not intended to limit the scope of the present invention. Those skilled in the art can make other changes or modifications based on the above disclosure, and these changes or modifications still fall within the scope of the present invention.

Claims

1. A wheel nut removal and installation device, characterized in that, The forklift (1) is equipped with a fixed frame (2) on both forks (101), a liftable upper crossbeam (3) is mounted on the fixed frame (2), a rotatable mounting plate (11) is mounted on the upper crossbeam (3), and an automatic wrench (12) is mounted on the mounting plate (11); rollers (14) are also mounted on the extended ends of the two forks (101) of the forklift (1).

2. The wheel nut removal and installation device according to claim 1, characterized in that, The fixed frame (2) includes two columns (201) respectively, with the two ends of the upper crossbeam (3) slidably mounted on the two columns (201), and a lower crossbeam (4) is also mounted on the two columns (201), with a lifting element that can drive the upper crossbeam (3) to rise and fall on the lower crossbeam (4).

3. The wheel nut removal and installation device according to claim 2, characterized in that, The two columns (201) are provided with vertically extending guide grooves (202), and both ends of the upper crossbeam (3) are equipped with X-axis screws (5) that extend outward through the guide grooves (202). The extended ends of the X-axis screws (5) are equipped with locking nuts (6) that can be locked with the columns (201).

4. The wheel nut removal and installation device according to claim 2, characterized in that, There are two lifting elements, which are located at both ends of the lower crossbeam (4). The lifting elements are Z-axis screws (7) that are rotatably supported on the lower crossbeam (4). The Z-axis screws (7) are threadedly connected to the upper crossbeam (3).

5. The wheel nut removal and installation device according to claim 4, characterized in that, A handle (8) is installed on the upper end of the Z-axis screw (7).

6. The wheel nut removal and installation device according to any one of claims 1 to 5, characterized in that, A sleeve (9) is also installed on the upper crossbeam (3), and a rotatable shaft (10) is installed inside the sleeve (9). The mounting plate (11) is installed on the shaft (10).

7. The wheel nut removal and installation device according to any one of claims 1 to 5, characterized in that, There are two automatic wrenches (12) installed on the mounting plate (11).

8. The wheel nut removal and installation device according to any one of claims 1 to 5, characterized in that, The mounting plate (11) also has a laser (13) for tire positioning.

9. The wheel nut removal and installation device according to any one of claims 1 to 5, characterized in that, The automatic wrench (12) is an electric wrench.

10. The wheel nut removal and installation device according to any one of claims 1 to 5, characterized in that, The forklift (1) is also equipped with a toolbox.

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