Aluminum alloy shearing device

Abstract

The utility model provides an aluminum alloy shearing device, which relates to the technical field of aluminum alloy processing, and solves the technical problem that the uneven shear stress distribution of the existing aluminum alloy shearing device easily causes the uneven shearing surface. The utility model includes a shearing box body provided with an upper scissor disk and a lower scissor disk for rotating and cutting aluminum alloys, and an upper shear shaft and a lower shear shaft for driving the upper scissor disk and the lower scissor disk respectively, and the upper shear shaft and the lower shear shaft are connected to the same driving device through the transmission box body. The upper shear disk and the lower shear disk of the utility model rotate at the same speed at the same time to shear the aluminum alloy with uniform force up and down at the same time, and the shear stress distribution is more uniform, the force is balanced, the operation is stable, and the service life of the shear shaft, bearings, scissor disks, etc. is extended; the separated transmission box body and the shearing box body can effectively prevent the blade coolant from entering the transmission box during the shearing process, thereby accelerating the rust and wear of the gears.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminum alloy processing, in particular to an aluminum alloy shearing device. Background Art

[0002] Aluminum alloy is an alloy with aluminum as the base and a certain amount of other alloying elements added. It is one of the light metal materials. In addition to the general properties of aluminum, aluminum alloy has some specific properties of alloys due to the different types and quantities of added alloying elements. It has high strength, good casting properties and plastic processing properties, good electrical and thermal conductivity, good corrosion resistance and weldability. It can be used as a structural material and is widely used in aerospace, aviation, transportation, construction, electromechanical, light chemical and daily necessities.

[0003] Aluminum materials have been widely used in various industries. After casting, aluminum materials are formed into strips, so they need to be sheared into specified lengths for subsequent transportation or processing. The shearing device is one of the key equipment in the continuous casting production line of aluminum and aluminum alloys. Its function is to cut the bars (ingots) from the previous process and flow them into the next process. Therefore, the operation effect and service life of the shearing device directly affect the smooth operation of the entire production line.

[0004] Existing shearing devices, such as a joint casting shearing device for aluminum alloy profile forming proposed in the patent with publication number CN213469743U, adopts a shearing structure corresponding to the upper and lower parts, and maintains balance through the transmission structure on both sides during the shearing process, with good overall driving stability, high shearing efficiency and strong reliability. Although the device is sheared from top to bottom, the upper and lower shears have a fixed cutter at one end and a movable cutter at the other end, which cooperate with each other. The stress-bearing surface of the aluminum alloy is mainly the shearing surface corresponding to the movable cutter, and the uneven shear stress distribution easily causes the uneven shearing surface. Utility Model Content

[0005] The utility model aims to provide an aluminum alloy shearing device to solve the technical problem that the uneven shearing stress distribution of the existing aluminum alloy shearing device easily causes the uneven shearing surface.

[0006] The embodiments of the present invention are implemented by the following technical solutions:

[0007] An aluminum alloy shearing device comprises a transmission box for transmission and a shearing box for shearing aluminum alloy, the shearing box is provided with an upper scissor disk and a lower scissor disk for rotationally cutting aluminum alloy and an upper shear shaft and a lower shear shaft for driving the upper scissor disk and the lower scissor disk respectively, the upper shear shaft and the lower shear shaft are connected to the same driving device through the transmission box.

[0008] Preferably, the transmission housing comprises a driving shaft for transmission connection between the driving device and the lower shear shaft and a transmission shaft for transmission connection between the driving shaft and the upper shear shaft.

[0009] Preferably, the driving shaft is provided with a transmission gear for transmission connection to the transmission shaft, and the transmission shaft is provided with a driven gear meshingly connected to the transmission gear.

[0010] Preferably, the driving shaft and the lower shear shaft and the transmission shaft and the upper shear shaft are concentrically connected via bushings.

[0011] Preferably, the transmission housing is provided with a first bearing for rotatably connecting the driving shaft and the transmission shaft.

[0012] Preferably, a reducer for increasing torque is provided between the driving device and the driving shaft.

[0013] Preferably, the shear box is provided with a second bearing for rotatably connecting the upper shear shaft and the lower shear shaft.

[0014] Preferably, the shear box body is provided with a bearing seat for mounting the second bearing, and the bearing seat is provided with a transparent cover for fixing the second bearing.

[0015] By adopting this technical solution, the upper shearing disc and the lower shearing disc can be rotated at the same speed to shear the aluminum alloy evenly from top to bottom, so that the shear stress distribution is more uniform and the shear surface is smoother.

[0016] It is driven by the same driving device, and after the torque is amplified by the reducer and the speed is reduced, it is transmitted to the shearing box through the separated transmission box to ensure that the speed of the upper shearing disk is consistent with that of the lower shearing disk. The separated transmission box and shearing box can effectively prevent the blade coolant from entering the transmission box during the shearing process, thereby accelerating the rust and wear of the gears, resulting in an increase in the gear clearance and the scissor disc clearance, resulting in long and short bars during shearing, affecting subsequent processes such as aluminum bar (ingot) stacking.

[0017] The technical solution of the embodiment of the utility model has at least the following advantages and beneficial effects:

[0018] 1. The upper shear disc and the lower shear disc of the utility model rotate at the same speed to shear the aluminum alloy evenly from top to bottom, so that the shear stress distribution is more uniform, the force is balanced, the operation is stable, and the service life of the shear shaft, bearings, shear discs, etc. is extended;

[0019] 2. The transmission box and shear box separated by the utility model can effectively prevent the blade coolant from entering the transmission box during the shearing process, thereby accelerating the rust and wear of the gears;

[0020] 3. The transmission box of the utility model adopts helical cylindrical gears, which has relatively stable transmission, small impact, vibration and noise, and improves the stability of transmission. At the same time, the transmission overlap is larger than that of spur gears, and the load-bearing and shearing forces are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 A schematic diagram of the side structure of the aluminum alloy shearing device provided in Example 1 of the utility model;

[0023] Figure 2 A schematic diagram of the structure of the upper and lower shear shaft bearing seats of the aluminum alloy shearing device provided in Example 2 of the utility model;

[0024] Figure 3 A schematic diagram of the installation structure of the upper and lower shear shafts of the aluminum alloy shearing device provided in Embodiment 2 of the present utility model;

[0025] Figure 4 A schematic diagram of the structure of the upper and lower shearing plates of the aluminum alloy shearing device provided in Example 2 of the utility model;

[0026] Figure 5 A schematic structural diagram of a bearing seat of an aluminum alloy shearing device provided in Example 2 of the utility model;

[0027] Figure 6 A schematic diagram of the structure of the second bearing and the transparent cover of the aluminum alloy shearing device provided in Example 2 of the utility model;

[0028] Figure 7 A schematic diagram of the structure of the shaft sleeve of the aluminum alloy shearing device provided in Example 2 of the utility model;

[0029] Icons: 1. Transmission housing; 2. Shear housing; 3. Transmission gear; 4. Driven gear; 5. Driving shaft; 6. Transmission shaft; 7. First bearing; 8. Upper shear shaft; 9. Lower shear shaft; 10. Upper scissor disc; 11. Lower scissor disc; 12. Bushing; 13. Reducer; 14. Driving device; 15. Bearing seat; 16. Transparent cover; 17. Second bearing. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0033] In the description of the present invention, it should be noted that if the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the product of the application is usually placed when used. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0034] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] Example 1

[0036] An aluminum alloy shearing device comprises a transmission box 1 for transmission and a shearing box 2 for shearing aluminum alloy, the shearing box 2 is provided with an upper scissor disk 10 and a lower scissor disk 11 for rotationally cutting aluminum alloy, and an upper shear shaft 8 and a lower shear shaft 9 for driving the upper scissor disk 10 and the lower scissor disk 11 respectively, the upper shear shaft 8 and the lower shear shaft 9 are connected to the same driving device 14 through the transmission box 1.

[0037] In this embodiment, the transmission housing 1 includes a driving shaft 5 for transmission connection between the driving device 14 and the lower shear shaft 9 and a transmission shaft 6 for transmission connection between the driving shaft 5 and the upper shear shaft 8 .

[0038] In this embodiment, the driving shaft 5 is provided with a transmission gear 3 for transmission connection with the transmission shaft 6 , and the transmission shaft 6 is provided with a driven gear 4 meshingly connected with the transmission gear 3 .

[0039] In this embodiment, the transmission housing 1 is provided with a first bearing 7 for rotatably connecting the driving shaft 5 and the transmission shaft 6 .

[0040] In this embodiment, a speed reducer 13 for increasing torque is further provided between the driving device 14 and the driving shaft 5 .

[0041] In this embodiment, the shear box 2 is provided with a second bearing 17 for rotatably connecting the upper shear shaft 8 and the lower shear shaft 9 .

[0042] In this embodiment, the transmission gear 3 and the driven gear 4 are helical cylindrical gears with 50 teeth, a module of 12, and a pressure angle of 20 degrees; their cold cross-sectional area is: 104×88×55, and their shear force is calculated to be as high as 600KN;

[0043] Working principle and usage:

[0044] The upper shear plate and the lower shear plate can be rotated at the same speed to shear the aluminum alloy evenly from top to bottom, so that the shear stress distribution is more uniform and the shear surface is smoother.

[0045] It is driven by the same driving device 14, and after the torque is amplified by the reducer 13 and the speed is reduced, it is transmitted to the shearing box 2 through the separated transmission box 1 to ensure that the speed of the upper shearing disk is consistent with that of the lower shearing disk. The separated transmission box 1 and shearing box 2 can effectively prevent the blade coolant from entering the transmission box during the shearing process, thereby accelerating the rust and wear of the gears, resulting in an increase in the gear clearance, and the scissor disc clearance increases accordingly, resulting in long and short bars during shearing, affecting subsequent processes such as aluminum bar (ingot) stacking.

[0046] Example 2

[0047] The only difference between this embodiment and the first embodiment is that, in this embodiment, the driving shaft 5 and the lower shear shaft 9 as well as the transmission shaft 6 and the upper shear shaft 8 are concentrically connected via a shaft sleeve 12 .

[0048] In this embodiment, the shear box body 2 is provided with a bearing seat 15 for mounting the second bearing 17 , and the bearing seat 15 is provided with a transparent cover 16 for fixing the second bearing 17 .

[0049] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An aluminum alloy shearing device, comprising a transmission housing (1) for transmission and a shearing housing (2) for shearing aluminum alloy, characterized in that: The shear box (2) is provided with an upper shear disc (10) and a lower shear disc (11) for rotationally cutting aluminum alloy, and an upper shear shaft (8) and a lower shear shaft (9) for driving the upper shear disc (10) and the lower shear disc (11) respectively. The upper shear shaft (8) and the lower shear shaft (9) are connected to the same driving device (14) through the transmission box (1).

2. The aluminum alloy shearing device according to claim 1, characterized in that: The transmission housing (1) comprises a driving shaft (5) for transmission connection between the driving device (14) and the lower shear shaft (9) and a transmission shaft (6) for transmission connection between the driving shaft (5) and the upper shear shaft (8).

3. The aluminum alloy shearing device according to claim 2, characterized in that: The driving shaft (5) is provided with a transmission gear (3) for transmission connection with the transmission shaft (6), and the transmission shaft (6) is provided with a driven gear (4) meshingly connected with the transmission gear (3).

4. An aluminum alloy shearing device according to claim 2 or 3, characterized in that: The driving shaft (5) and the lower shear shaft (9) as well as the transmission shaft (6) and the upper shear shaft (8) are concentrically connected via a shaft sleeve (12).

5. An aluminum alloy shearing device according to claim 2 or 3, characterized in that: The transmission housing (1) is provided with a first bearing (7) for rotatably connecting the driving shaft (5) and the transmission shaft (6).

6. An aluminum alloy shearing device according to claim 2 or 3, characterized in that: A speed reducer (13) for increasing torque is also provided between the driving device (14) and the driving shaft (5).

7. An aluminum alloy shearing device according to any one of claims 1 to 3, characterized in that: The shear box body (2) is provided with a second bearing (17) for rotatably connecting the upper shear shaft (8) and the lower shear shaft (9).

8. The aluminum alloy shearing device according to claim 7, characterized in that: The shear box body (2) is provided with a bearing seat (15) for mounting the second bearing (17), and the bearing seat (15) is provided with a transparent cover (16) for fixing the second bearing (17).

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