Gear shifting mechanism of speed reducer of aluminum foil mill
By improving the gear shifting mechanism of the aluminum foil rolling mill reducer, using the combination of internal and external components, precise shifting and convenient maintenance are achieved, which solves the wear and accuracy of traditional mechanisms and improves the performance of the equipment.
Patent Information
- Application Number
- CN202422391448.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2025-08-29
- Estimated Expiration
- 2034-09-30
AI Technical Summary
The shifting mechanism of the traditional aluminum foil rolling mill reducer is prone to wear when it is subjected to large loads and frequent operations. The entire machine needs to be disassembled for maintenance, and the automatic shifting accuracy is poor, which affects the gear strength.
The shifting mechanism consisting of internal and external components, including a drive shaft, a fork, a positioning slide, a hydraulic cylinder and a cylinder, is used to achieve accurate shifting through electrical signals and physical control. The fork adopts an upper and lower split structure to facilitate the replacement of the positioning slide.
It improves the positioning accuracy and automatic shifting efficiency of gear shifting gears, reduces maintenance time and cost, and extends the service life of the equipment.
Smart Images
Figure CN223282519U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a speed reducer, in particular to a gear shifting mechanism of a speed reducer of an aluminum foil rolling mill. Background Art
[0002] As we all know, the aluminum foil rolling mill reducer is a device specifically designed for rolling aluminum foil. Aluminum foil is thin, flexible, and has good thermal conductivity, making it widely used in food packaging, electronics, construction, and other fields. Aluminum foil rolling mills typically feature high precision, high speed, and strong rolling force to gradually roll thicker aluminum sheets into thinner aluminum foil. Because different products require different rolling forces, the aluminum foil rolling mill switches between different gears during the rolling process by shifting gears or other transmission components through a shifting mechanism. This adjusts the mill's rolling speed, rolling force, and other parameters to meet different production requirements. Therefore, the quality of the shifting mechanism has a significant impact on the normal operation of such rolling mill production lines.
[0003] The traditional speed reducer shifting mechanism has the following defects: 1. When subjected to heavy loads and frequent operations, the positioning slider may wear out, and the entire machine needs to be disassembled to replace the positioning slider, which increases maintenance time and cost; 2. The positioning accuracy is poor during automatic shifting, and the shift gears cannot be fully engaged, affecting the gear strength. Summary of the Invention
[0004] The purpose of the utility model is to provide a shift mechanism for an aluminum foil rolling mill reducer, which effectively improves the convenience of maintenance, accurately positions the shift gears, and improves the efficiency of automatic shifting.
[0005] The technical solution of the utility model is as follows: the shifting mechanism of the aluminum foil rolling mill reducer is composed of internal components installed in the box body and external components outside the box body; the internal components include: a transmission shaft, a left shift fork, a shift gear, a right positioning slider, a right shift fork, and a left positioning slider; the shift gear is installed in the box body through a rotating shaft, one end of the transmission shaft located below the shift gear is fixed on the box body, and the other end of the transmission shaft is fixed on the bearing seat located in the box body, a distance ring is installed on the transmission shaft and is located directly below the shift gear, a left shift fork is installed on the transmission shaft on the left side of the distance ring and is positioned by a left large round nut, a right shift fork is installed on the transmission shaft on the right side of the distance ring and is positioned by a right large round nut, and the left shift fork is positioned by a left pin and a left The left positioning slider is installed with the small round nut, and the right positioning slider is installed on the right shift fork through the right pin shaft and the right small round nut. The left positioning slider and the right positioning slider are symmetrically located on both sides of the shift gear. The distance ring and the left large round nut and the right large round nut are adjusted to keep the gap between the right positioning slider and the left positioning slider on both sides of the shift gear consistent; the external components include: a hydraulic cylinder, a cylinder, a handle, a slider, and a positioning pin; the cylinder is suspended on the outer wall of the box, a connecting sleeve is installed at the cylinder rod end of the cylinder, and a positioning pin is installed at the center of the connecting sleeve; the hydraulic cylinder is horizontally fixed to the outer wall of the box, a slider is installed at the cylinder rod end of the hydraulic cylinder, a positioning hole is set on the slider, one end of the handle is installed on the transmission shaft extending out of the box, and the other end of the handle is fixed to the slider.
[0006] Furthermore, the shift fork is composed of a lower shift fork and an upper shift fork positioned and assembled by hinged hole bolts.
[0007] Furthermore, a positioning block is installed on the outer wall of the box at the starting point and the end point of the handle respectively.
[0008] Furthermore, a proximity switch is installed on the outer wall of the box at the starting point and the end point of the handle respectively.
[0009] The advantages of this utility model are as follows:
[0010] 1. Proximity switches and positioning blocks are installed on both sides of the handle to achieve dual insurance of electrical signal control and physical control, making the external and internal shift positions more accurate.
[0011] 2. By adjusting the length of the distance ring between the two shift forks and the large round nuts on both sides, the gap between the positioning slider and the shift gear can be kept consistent, thereby extending the service life of the shift mechanism.
[0012] 3. When the positioning slider is worn out after long-term use and needs to be replaced, there is no need to dismantle the entire piece. The shift fork adopts an upper and lower split structure. You only need to separate the lower shift fork from the upper shift fork to replace the positioning slider, which greatly reduces maintenance time and cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is an external schematic diagram of the speed reducer shift mechanism;
[0014] Figure 2 It is the internal schematic diagram of the speed reducer shift mechanism;
[0015] In the figure: 1 hydraulic cylinder, 2 slider, 3 handle, 4 positioning pin, 5 connecting sleeve, 6 cylinder, 7 positioning block, 8 box, 9 proximity switch, 10 transmission shaft, 11 right large round nut, 12 right small round nut, 13 right pin, 14 right positioning slider, 15 distance ring, 16 shift gear, 17 left shift fork, 18 bearing seat, 19 lower shift fork, 20 upper shift fork, 21 right shift fork, 22 left large round nut, 23 left small round nut, 24 left positioning slider, 25 left pin. DETAILED DESCRIPTION
[0016] The technical solution of the present utility model is further described below with reference to the accompanying drawings.
[0017] like Figure 1 、 Figure 2 As shown, the shifting mechanism of the aluminum foil rolling mill reducer is composed of internal components installed in the box body 8 and external components outside the box body 8; the internal components include: a transmission shaft 10, a left shift fork 17, a shift gear 16, a right positioning slider 14, a right shift fork 21, and a left positioning slider 24; the shift gear 16 is installed in the box body 8 through a rotating shaft, one end of the transmission shaft 10 located below the shift gear 16 is fixed to the box body 8, and the other end of the transmission shaft 10 is fixed to the bearing seat 18 located in the box body 8, a distance ring 15 is installed on the transmission shaft 10 and is located directly below the shift gear 16, a left shift fork 17 is installed on the transmission shaft 10 on the left side of the distance ring 15 and is positioned by a left large round nut 22, a right shift fork 21 is installed on the transmission shaft 10 on the right side of the distance ring 15 and is positioned by a right large round nut 11, and the left shift fork 17 is fixed by a left pin 25 and a left small round nut 2 3. Install the left positioning slider 24. Install the right positioning slider 14 on the right shift fork 21 via the right pin 13 and the right small round nut 12. The left and right positioning sliders 24 and 14 are symmetrically located on both sides of the shift gear 16. Adjust the distance ring 15 and the left and right large round nut 22 and 11 so that the gaps between the right and left positioning sliders 14 and 24 on both sides of the shift gear 16 remain consistent. The external components include: a hydraulic cylinder 1, a cylinder 6, a handle 3, a slider 2, and a positioning pin 4. The cylinder 6 is suspended on the outer wall of the housing 8, with a connecting sleeve 5 mounted on the rod end of the cylinder 6, and a positioning pin 4 mounted in the center of the connecting sleeve 5. The hydraulic cylinder 1 is horizontally fixed to the outer wall of the housing 8, with a slider 2 mounted on the rod end of the hydraulic cylinder 1, and a positioning hole is set on the slider 2. One end of the handle 3 is mounted on the transmission shaft 10 extending outside the housing 8, and the other end of the handle 3 is fixed to the slider 2.
[0018] Furthermore, the shift fork is composed of a lower shift fork 19 and an upper shift fork 20 positioned and assembled by hinged hole bolts.
[0019] Furthermore, a positioning block 7 is installed on the outer wall of the box body 8 at the starting point and the end point of the handle 3 respectively.
[0020] Furthermore, a proximity switch 9 is installed on the outer wall of the box body 8 at the starting point and the end point of the handle 3 respectively.
[0021] The working process of the shift mechanism of the aluminum foil rolling mill reducer is as follows: the hydraulic cylinder 1 pushes the slider 2 to drive the handle 3 to move left and right, the handle 3 drives the transmission shaft 10 to move, and the cylinder 6 drives the positioning pin 4 to insert into the positioning hole of the slider 2 to complete the stroke positioning.
Claims
1. The shift mechanism of the aluminum foil rolling mill reducer is characterized by: It is composed of internal components installed in the box body (8) and external components outside the box body (8); the internal components include: a transmission shaft (10), a left shift fork (17), a shift gear (16), a right positioning slide block (14), a right shift fork (21), and a left positioning slide block (24); the shift gear (16) is installed in the box body (8) through a rotating shaft, one end of the transmission shaft (10) located below the shift gear (16) is fixed on the box body (8), and the other end of the transmission shaft (10) is fixed on the On the bearing seat (18) in the housing (8), a distance ring (15) is installed on the transmission shaft (10) and is located directly below the shift gear (16). A left shift fork (17) is installed on the transmission shaft (10) on the left side of the distance ring (15) and is positioned by a left large round nut (22). A right shift fork (21) is installed on the transmission shaft (10) on the right side of the distance ring (15) and is positioned by a right large round nut (11). A left positioning slider (24) is installed on the left shift fork (17) through a left pin (25) and a left small round nut (23). The right positioning slider (14) is installed on the right shift fork (21) through the right pin (13) and the right small round nut (12). The left positioning slider (24) and the right positioning slider (14) are symmetrically located on both sides of the shift gear (16). The distance ring (15) and the left large round nut (22) and the right large round nut (11) are adjusted so that the gaps between the right positioning slider (14) and the left positioning slider (24) on both sides of the shift gear (16) remain consistent. The external components include: a hydraulic cylinder (1), an air cylinder (6), and a handle (3). , slider (2), positioning pin (4); the cylinder (6) is suspended and mounted on the outer wall of the box (8), the cylinder rod end of the cylinder (6) is mounted on the connecting sleeve (5), and the center of the connecting sleeve (5) is mounted on the positioning pin (4); the hydraulic cylinder (1) is horizontally fixed on the outer wall of the box (8), the cylinder rod end of the hydraulic cylinder (1) is mounted on the slider (2), a positioning hole is set on the slider (2), one end of the handle (3) is mounted on the transmission shaft (10) extending out of the box (8), and the other end of the handle (3) is fixed on the slider (2).
2. The shift mechanism of the aluminum foil rolling mill reducer according to claim 1, characterized in that: The shift fork is composed of a lower shift fork (19) and an upper shift fork (20) positioned and assembled by hinged hole bolts.
3. The shift mechanism of the aluminum foil rolling mill reducer according to claim 1, characterized in that: A positioning block (7) is installed on the outer wall of the box body (8) at the starting point and the end point of the handle (3).
4. The shift mechanism of the aluminum foil rolling mill reducer according to claim 1, characterized in that: A proximity switch (9) is installed on the outer wall of the box (8) at the starting point and the end point of the handle (3).