A device for changing a double-wheel cutter head

Abstract

The utility model relates to double -wheel groove milling machine technical field, concretely relates to a device for replacing double -wheel cutter head, including base, fixed plate and pivot. The fixed plate is connected on the base, pivot rotatory connection is established on the fixed plate, the axial direction of pivot is horizontally arranged, the cross section diameter of pivot is compatible with the diameter of the inner ring of wheel cutter head, and the end of pivot is equipped with detachable baffle. The device can be used as the support of replacing and temporarily storing the wheel cutter head, does not need to use the crane equipment additionally, and then solves the problem that the wheel cutter head needs to rely on the crane to complete the replacement operation when replacing the wheel cutter head, effectively reduces the operation cost when replacing the wheel cutter head, improves work efficiency and economic benefits.

Description

Technical Field

[0001] This utility model relates to the field of twin-wheel milling machine technology, and in particular to a device for changing twin-wheel milling cutter discs. Background Technology

[0002] In the construction of diaphragm walls, twin-wheel milling machines play an indispensable role as a commonly used and crucial piece of construction equipment. Equipped with a milling cutter head, this core component directly impacts the construction quality and efficiency of the diaphragm wall. However, in actual construction scenarios, when the milling cutter head experiences wear or damage and requires replacement or repair, its immense weight presents significant challenges. Currently, the industry primarily relies on a combination of cranes and manual labor to replace the milling cutter head. The specific process involves first using a crane to lift and secure the cutter head with ropes, followed by manual removal of the bolts connecting the cutter head to the twin-wheel milling machine; if installation is required, manual connection and fixation are then performed using bolts. However, this current replacement method, involving the use of a crane, results in high overall replacement costs. Utility Model Content

[0003] The purpose of this invention is to overcome the problem in the prior art that a crane is required to complete the replacement operation of a dual-wheel milling cutter disc. Therefore, a device for replacing a dual-wheel milling cutter disc is provided.

[0004] This utility model provides a device for changing a dual-wheel milling cutter disc, comprising: Base; A fixing plate is attached to the base. A rotating shaft is rotatably connected to the fixed plate. The shaft is arranged horizontally along its axis. The cross-sectional diameter of the shaft is adapted to the inner diameter of the milling cutter head. A detachable baffle is provided at the end of the shaft.

[0005] The replacement mentioned here is a broad concept, specifically covering the following operations: first, removing the wheel milling cutter head from the twin-wheel grooving machine; second, installing the wheel milling cutter head onto the twin-wheel grooving machine; and third, after installing the wheel milling cutter head onto the device, enabling the replacement of the drill bit on the wheel milling cutter head.

[0006] This utility model provides a device for replacing a dual-wheel milling cutter disc. The base serves to fix the fixing plate and support the entire device. The main function of the fixing plate is to support and fix the rotating shaft, ensuring its stable position during operation. The cross-sectional diameter of the rotating shaft is adapted to the inner diameter of the milling cutter disc. This adaptation design allows the rotating shaft to temporarily fix the milling cutter disc, allowing it to be smoothly fitted onto the rotating shaft. When the milling cutter disc is connected to the dual-wheel milling machine, the inner ring of the milling cutter disc forms a circular groove with the mating surface of the dual-wheel milling machine, which can accommodate the end face of the rotating shaft. Therefore, when the rotating shaft is inserted into the circular groove, it provides support for the milling cutter disc, facilitating its installation and removal. The baffle plate prevents the milling cutter disc from accidentally detaching from the rotating shaft during movement, ensuring operational safety. The rotating shaft is rotatably connected to the fixed plate. When the milling cutter head is fixed to the rotating shaft, it can rotate together with the rotating shaft. This design facilitates maintenance operations on the milling cutter head, such as checking the wear of the cutter head and replacing drill bits.

[0007] This invention provides a device for replacing a twin-wheel milling cutter disc, which serves as a support for replacing and temporarily storing the cutter disc. The rotating shaft can directly engage with the inner ring of the cutter disc on the twin-wheel grooving machine, ensuring stable support during disassembly and installation. After disassembly, the cutter disc can be easily moved towards the root of the rotating shaft for temporary storage or maintenance. During installation, the rotating shaft of this device provides support, facilitating a secure connection between the cutter disc and the twin-wheel grooving machine. This method eliminates the need for a crane, solving the problem of requiring a crane for cutter disc replacement, effectively reducing operating costs, and improving work efficiency and economic benefits.

[0008] The baffle and the rotating shaft can be detachably connected by a clamp, bolt or thread.

[0009] Preferably, the baffle is provided with a threaded groove, and the end of the rotating shaft is provided with an external thread that matches the threaded groove. In this design, the baffle and the rotating shaft are connected by a thread. In specific operation, the threaded groove of the baffle is first precisely aligned with the end of the rotating shaft, and then the baffle is rotated around the axis of the rotating shaft. As the rotation continues, the external thread of the rotating shaft gradually engages with the threaded groove, ultimately completing a stable connection between the baffle and the rotating shaft. Compared to methods using clamps or bolts, the threaded connection method used in this design has higher connection efficiency.

[0010] Preferably, the fixing plate is connected to the base via a column. In this design, the column supports the fixing plate, stabilizing it at a certain height, which reduces the amount of material used in the fixing plate.

[0011] The connection between the fixing plate and the column can be either that the top of the column is directly connected to the fixing plate, or that a top plate is connected to the top of the column, and the fixing plate is then connected to the column through the bottom surface of the top plate.

[0012] Preferably, there are four columns arranged in two rows and two columns on the base. A top plate is connected to the top of all four columns. A fixing plate is connected to the columns via the top plate, and the top of the fixing plate is connected to the top plate. The fixing plate is located between the four columns. In this design, since the four columns are not directly connected to the fixing plate, the spacing between them can be relatively large. By connecting the tops of the four columns together with the top plate, a more stable frame structure can be formed, effectively improving the structural strength and stability of the entire device. The fixing plate, located between the four columns, ensures that the center of gravity of the entire device is within the range defined by the four columns, further ensuring the stability of the entire device and reducing the risk of tipping over due to a shift in the center of gravity after the milling cutter head is installed on the device.

[0013] Preferably, the top surface of the top plate is provided with a groove. In this design, the main function of the groove is to store tools or related accessories needed during the maintenance process.

[0014] Preferably, a magnetic component is embedded in the groove. In this design, the magnetic component can temporarily fix the tools and related accessories used during the changing process by means of magnetic attraction, preventing them from sliding freely.

[0015] Preferably, each of the four columns has a lifting ring on its side at the top. In this design, the lifting ring provides a lifting point for the hoisting equipment to lift the device.

[0016] Preferably, the top of the fixing plate is connected to the top plate via a spring post. In this design, when changing the milling cutter head, impact vibrations are unavoidable. The spring post, with its elastic properties, can effectively absorb and buffer these impact vibrations, thereby reducing the impact of vibrations on the entire device and extending its service life.

[0017] Preferably, the base has detachable casters on its bottom surface. In this design, the casters greatly facilitate operation when the entire device needs to be moved; the device can be moved smoothly on the ground with a simple push, effectively saving manpower and time costs. When the device does not need to be moved, the casters can be detached from the base. This eliminates the risk of unnecessary movement of the device due to unexpected factors (such as collisions, slight shaking caused by uneven ground, etc.), ensuring the stability of the device in a stationary state and providing reliable protection for the normal use and safe storage of the device.

[0018] The rotating shaft can be located on one side of the fixed plate, that is, one end of the rotating shaft is rotatably connected to the fixed plate.

[0019] Preferably, the rotating shaft extends through both sides of the fixed plate. This design allows both ends of the rotating shaft to be used for replacing or storing the milling cutter head, greatly facilitating the replacement operation. Specifically, when the milling cutter head needs to be replaced, one end of the rotating shaft can temporarily fix a brand-new milling cutter head, while the other end can be used to receive the milling cutter head to be removed from the twin-wheel slotting machine. Then, the brand-new milling cutter head can be installed onto the twin-wheel slotting machine, thereby effectively improving replacement efficiency.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention provides a device for replacing a twin-wheel milling cutter disc, which serves as a support for replacing and temporarily storing the cutter disc. The rotating shaft can directly engage with the inner ring of the cutter disc on the twin-wheel grooving machine, ensuring stable support during disassembly and installation. After disassembly, the cutter disc can be easily moved towards the root of the rotating shaft for temporary storage or maintenance. During installation, the rotating shaft of this device provides support, facilitating a secure connection between the cutter disc and the twin-wheel grooving machine. This method eliminates the need for a crane, solving the problem of requiring a crane for cutter disc replacement, effectively reducing operating costs, and improving work efficiency and economic benefits. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of a device for changing wheel milling cutter heads.

[0022] Figure 2 This is a front view of a device for changing the wheel milling cutter head.

[0023] Figure 3 This is a side view of a device for changing wheel milling cutter heads.

[0024] Figure 4 This is a top view of a device for changing wheel milling cutter heads.

[0025] Figure 5 This is a schematic diagram of an upper-mounted wheel milling cutter disc for a device used to change wheel milling cutter discs.

[0026] Figure 6 This is a schematic diagram of a wheel milling cutter head.

[0027] Marked in the image: 1-Base, 101-roller, 2-Columns, 3-Fixing plate, 4-Spindle, 5-Baffle, 6-Top plate, 601 - Groove 7-Hanging rings 8-Diagonal brace, 9-Wheel milling cutter head, 901 - Drill bit, 902 - Inner ring, 903 - Bolt hole. Detailed Implementation

[0028] The present invention will be further described in detail below with reference to specific embodiments. However, it should not be construed as limiting the scope of the present invention to the following embodiments; all technologies implemented based on the content of the present invention fall within the scope of the present invention.

[0029] Unless otherwise specified, the terms "upper," "lower," "left," "right," "center," "inner," and "outer" used in the description of specific embodiments of this utility model to indicate orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product / equipment / device is usually placed during use. These terms are merely for the purpose of facilitating the description of the utility model solution or simplifying the description in specific embodiments, and for enabling those skilled in the art to quickly understand the solution, and do not indicate or imply that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship. Therefore, they should not be construed as limitations on this utility model.

[0030] Furthermore, the use of terms such as "horizontal," "vertical," "suspended," "parallel," and "coaxial" does not imply that the corresponding device / component / element must be absolutely horizontal, vertical, suspended, parallel, or coaxial. Slight tilt or deviation is permissible, as long as it does not affect the normal function of the relevant component. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," not that the structure must be perfectly horizontal; a slight tilt is acceptable. "Coaxial" means that two components are arranged as coaxially as possible, allowing them to move coaxially or approximately coaxially when their relative positions change. Alternatively, it can be simplified to mean that the corresponding device / component / element, when arranged in "horizontal," "vertical," "suspended," "parallel," or "coaxial" directions, can have an error / deviation of ±10% relative to the corresponding direction, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, and more preferably within ±4%. For example, the deviation in the "coaxial" direction is controlled within 0.2-1mm, preferably within 0.2-0.5mm. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the present invention.

[0031] Furthermore, the use of terms such as "first," "second," and "third" in terminology is merely for distinguishing descriptions of identical or similar components and should not be interpreted as emphasizing or implying the relative importance of a particular component.

[0032] Furthermore, in the description of the embodiments of this utility model, "several", "multiple", and "several" represent at least two. The number can be any number, such as two, three, four, five, six, seven, eight, or nine, and can even exceed nine.

[0033] Furthermore, in the description of the technical solution of this utility model, unless otherwise explicitly specified / limited / restricted, the terms "set up," "install," "connect," "link," "provided with," "laid out," and "arranged" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to common connection methods in the art, such as welding, riveting, bolting, and threaded connections. Such connections can be mechanical, electrical, or communication connections; they can be direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components.

[0034] Example 1 like Figures 1 to 4 As shown, a device for changing a dual-wheel milling cutter disc includes a base 1, a fixing plate 3, and a rotating shaft 4.

[0035] The fixing plate 3 is connected to the base 1. Specifically, the base 1 may include two longitudinal rods and four transverse rods, with the two longitudinal rods arranged side by side and the four transverse rods connected between the two longitudinal rods. The fixing plate 3 is made of steel, and its thickness can be 50mm-150mm.

[0036] The rotating shaft 4 is rotatably connected to the fixed plate 3. The axial direction of the rotating shaft 4 is horizontal. The cross-sectional diameter of the rotating shaft 4 is adapted to the diameter of the inner ring 902 of the milling cutter head 9. A detachable baffle 5 is provided at the end of the rotating shaft 4. Specifically, the rotating shaft 4 and the fixed plate 3 are connected by a bearing. The rotating shaft 4 is fixedly connected to the inner ring of the bearing, and the fixed plate 3 is fixedly connected to the outer ring of the bearing.

[0037] In an optional embodiment, the baffle 5 may be provided with a threaded groove, and the end of the rotating shaft 4 may be provided with an external thread that matches the threaded groove. Specifically, the depth of the threaded groove is 20mm-30mm.

[0038] In an optional embodiment, the fixing plate 3 can be connected to the base 1 via the column 2. Specifically, the base 1, column 2, pivot 4, and baffle 5 are all made of steel.

[0039] In an optional embodiment, there can be four columns 2, arranged in two rows and two columns on the base 1. A top plate 6 is connected to the top of all four columns 2. A fixing plate 3 is connected to the columns 2 via the top plate 6, with its top end also connected to the top plate 6. The fixing plate 3 is located between the four columns 2. Specifically, the cross-section of the column 2 can be a square with sides of 50mm-100mm. The minimum distance between the column 2 and the fixing plate 3 can be 20mm-30mm. The top plate 6 can be a rectangular steel plate, with the bottom of each of its four corners welded to the top of one of the four columns 2. The fixing plate 3 can be connected to the center of the bottom surface of the top plate 6.

[0040] In an optional embodiment, the top surface of the top plate 6 may be provided with a groove 601. Specifically, the depth of the groove 601 may be 50mm-100mm.

[0041] In an optional embodiment, a magnetic element may be embedded in the groove 601. Specifically, the magnetic element may be located on the bottom or side surface of the groove 601. The magnetic element may be a magnet block or a magnet sheet.

[0042] In an optional embodiment, each of the four columns 2 may be provided with a lifting ring 7 on its side at the top. Specifically, the lifting ring 7 may be made of steel bars and connected to the column 2 by welding.

[0043] In an optional embodiment, the top of the fixing plate 3 and the top plate 6 can be connected by spring posts. In this embodiment, there can be multiple spring posts, symmetrically arranged on the top of the fixing plate 3. The spring posts are not shown in the figure.

[0044] In an optional embodiment, the bottom surface of the base 1 may be provided with detachable rollers 101. The rollers 101 can be connected to the base 1 by bolts and clips.

[0045] In an optional embodiment, the rotating shaft 4 can extend through both sides of the fixed plate 3. Specifically, both ends of the rotating shaft 4 can be fitted with the milling cutter 9. The length of each end of the rotating shaft 4 protruding from the two sides of the fixed plate 3 can be 0.5m-0.8m.

[0046] In an optional embodiment, a diagonal brace 8 may be provided between the column 2 and the base 1. Specifically, the diagonal brace 8 may be a steel plate or angle steel with a thickness of 8mm-12mm. The diagonal brace 8 can strengthen the connection between the column 2 and the base 1 and improve the stability of the column 2.

[0047] Figure 5 The image shows the milling cutter head 9 mounted on the rotating shaft 4. Figure 6 The given image is a 3D view of the wheel milling cutter head 9. This view shows that several drill bits 901 are evenly distributed around the outer ring of the wheel milling cutter head 9. A ring of bolt holes 903 is located near the inner ring 902 on the wheel milling cutter head 9. These bolt holes 903 are used to connect the wheel milling cutter head 9 to the twin-wheel slotting machine using bolts.

[0048] The device provided by this utility model can also improve the efficiency of replacing the wheel milling cutter head 9, and at the same time, by reducing hoisting operations, it can also reduce safety accidents caused by hoisting. The device can also realize the centralized storage, convenient transportation and quick replacement of spare wheel milling cutter heads 9, and can complete the replacement of drill bits 901 of wheel milling cutter heads 9 with labor-saving efficiency, effectively avoiding long-term downtime of the twin-wheel milling machine and ensuring the continuity and efficiency of twin-wheel milling construction.

[0049] Example 2 This embodiment provides a detailed description of the method of using the device for changing a dual-wheel milling cutter head as described in Embodiment 1.

[0050] Regarding the storage and movement of the milling cutter head 9.

[0051] The milling cutter head 9 is installed onto the rotating shaft 4 of the device, and the baffle 5 is installed onto the end of the rotating shaft 4 to prevent the milling cutter head 9 from accidentally falling off during transportation or hoisting. The device can be moved in several ways: First, by connecting the lifting ring 7 to a lifting device, the entire device can be slowly lifted. Before and during hoisting, it is necessary to check whether the milling cutter head 9 is securely installed and whether the baffle 5 is fixed in place to ensure safe movement to the construction area. Second, the entire device can be pushed to a predetermined area by installing rollers 101 on the bottom surface of the base 1. After reaching the designated position, the rollers 101 can be removed to prevent the entire device from moving.

[0052] Regarding the disassembly of the milling cutter head 9.

[0053] If the wheel milling cutter 9 on the twin-wheel grooving machine malfunctions, hoist or push the device to the vicinity of the twin-wheel grooving machine, remove the baffle 5, adjust the height of the wheel milling cutter 9 on the twin-wheel grooving machine so that the height of the inner ring 902 of the wheel milling cutter 9 is consistent with the height of the rotating shaft 4 of the device, insert the rotating shaft 4 into the inner ring 902 of the wheel milling cutter 9 to form a temporary support for the wheel milling cutter 9, remove the bolts between the wheel milling cutter 9 and the twin-wheel grooving machine, move the wheel milling cutter 9 towards the root of the rotating shaft 4, and install the baffle 5 onto the rotating shaft 4 to complete the disassembly operation of the wheel milling cutter 9.

[0054] The installation of the new wheel milling cutter head 9 is performed by reversing the disassembly process described above.

[0055] Special care should be taken to keep the entire device level and avoid tilting. After the changeover is completed, move the entire device back to its storage location, inspect and maintain the milling cutter 9 on the rotating shaft 4, replace the drill bit 901, and prepare for the next operation.

[0056] It is important to note that the connection between the baffle 5 and the rotating shaft 4 must be firm and reliable to ensure the safe fixing of the milling cutter disc 9; the roller 101 should be maintained regularly to ensure mobility and safety; and the lifting ring 7 must be reliably connected during hoisting operations to avoid accidents.

[0057] 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 and 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 device for changing a dual-wheel milling cutter disc, characterized in that, include: Base (1); A fixing plate (3) is connected to the base (1); A rotating shaft (4) is rotatably connected to the fixed plate (3). The axial direction of the rotating shaft (4) is horizontal. The cross-sectional diameter of the rotating shaft (4) is adapted to the diameter of the inner ring (902) of the milling cutter disc (9). A detachable baffle (5) is provided at the end of the rotating shaft (4).

2. The device for changing a dual-wheel milling cutter head according to claim 1, characterized in that, The baffle (5) is provided with a threaded groove, and the end of the rotating shaft (4) is provided with an external thread that matches the threaded groove.

3. The device for changing a dual-wheel milling cutter head according to claim 1, characterized in that, The fixing plate (3) is connected to the base (1) via the column (2).

4. The device for changing a dual-wheel milling cutter head according to claim 3, characterized in that, There are four columns (2), which are arranged in two rows and two columns on the base (1). The top of the four columns (2) are connected to a top plate (6). The fixing plate (3) is connected to the column (2) through the top plate (6). The top of the fixing plate (3) is connected to the top plate (6). The fixing plate (3) is located between the four columns (2).

5. The device for changing a dual-wheel milling cutter head according to claim 4, characterized in that, The top surface of the top plate (6) is provided with a groove (601).

6. The device for changing a dual-wheel milling cutter head according to claim 5, characterized in that, The groove (601) contains a magnetic component.

7. The device for changing a dual-wheel milling cutter head according to claim 4, characterized in that, Each of the four columns (2) has a hanging ring (7) on its side at the top.

8. The device for changing a dual-wheel milling cutter head according to claim 4, characterized in that, The top of the fixing plate (3) is connected to the top plate (6) by a spring column.

9. A device for changing a dual-wheel milling cutter head according to any one of claims 1-8, characterized in that, The base (1) has detachable rollers (101) on its bottom surface.

10. The device for changing a dual-wheel milling cutter head according to claim 9, characterized in that, The rotating shaft (4) passes through both sides of the fixing plate (3).

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