Tin bath linear motor emergency lifting device

Abstract

This utility model discloses an emergency lifting device for a linear motor in a tin bath, relating to the technical field of float glass production equipment. It includes a mobile trolley and a frame. A first adjusting mechanism and a second adjusting mechanism are respectively installed on both sides of the frame. The first adjusting mechanism includes a first adjusting frame, a reduction motor, a threaded sleeve, a threaded shaft, and a transmission assembly. The threaded shaft is vertically rotatably mounted on the frame, and the threaded sleeve is threaded onto the outside of the threaded shaft. A linear motor is mounted on the first adjusting frame, and the reduction motor is mounted on the side end of the frame. The transmission assembly connects the output end of the reduction motor to the threaded shaft. In an emergency requiring rapid lifting of the machine head, the controller starts the reduction motor. The reduction motor, in conjunction with the first and second sprockets, drives the threaded shaft to rotate. The rotating threaded shaft causes the threaded sleeve to lift one end of the first adjusting frame, thereby lifting the machine head of the linear motor upwards and preventing the machine head from colliding with the molten glass.

Description

Technical Field

[0001] This utility model relates to the technical field of float glass production equipment, and in particular to an emergency lifting device for a tin bath linear motor. Background Technology

[0002] In float glass production, a large amount of liquid tin is present inside the tin bath, while the molten glass floats on the surface of the tin. Due to the temperature difference of the tin, the molten glass often experiences lateral or longitudinal temperature differences, resulting in various glass deformation defects. The tin bath linear motor is a device that uses current to generate a magnetic field to guide the flow of molten tin. By controlling the direction and flow rate of the molten tin, the temperature of the molten tin is made uniform and the temperature difference is reduced, thereby solving the glass deformation defects.

[0003] Currently used linear motor frames primarily employ a hand-cranked wheel to rotate a lead screw, lifting the linear motor support base. When molten glass in the solder bath exhibits edge detachment, adhesion, or incompletely melted silicon lumps, the linear motor head needs to be manually lifted by the hand-cranked wheel to prevent contact and potential accidents. However, current industry practices largely rely on manual operation, which is time-consuming and lacks rapid response. Therefore, this paper proposes an emergency lifting device for the solder bath linear motor to address these issues. Utility Model Content

[0004] The purpose of this application is to provide an emergency lifting device for a linear motor in a tin bath to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this application provides the following technical solution: an emergency lifting device for a linear motor in a tin bath, comprising a mobile trolley, a frame mounted on the upper end of the mobile trolley, a first adjustment mechanism mounted on one side of the upper end of the frame, and a second adjustment mechanism mounted on the other side of the upper end of the frame.

[0006] The first adjustment mechanism includes a first adjustment frame, a geared motor, a threaded sleeve, a threaded shaft, and a transmission assembly;

[0007] The threaded shaft is vertically and rotatably mounted on the frame. The threaded sleeve is threaded onto the outside of the threaded shaft, and the top end of the threaded sleeve is rotatably connected to the first adjusting frame. A linear motor is mounted on the first adjusting frame, and a geared motor is mounted on the side end of the frame. The transmission assembly is connected between the output end of the geared motor and the threaded shaft.

[0008] Limiting components are installed on the frame to limit the vertical movement of the linear motor body.

[0009] As a further supplement to this solution, the transmission assembly includes a first sprocket and a second sprocket. The first sprocket is coaxially fixed with the threaded shaft, and the second sprocket is coaxially fixed with the output end of the geared motor. The first sprocket and the second sprocket are connected by a transmission chain.

[0010] As a further supplement to this scheme, the diameter ratio of the first sprocket to the second sprocket is 2:1.

[0011] As a further supplement to this scheme, the threaded shaft is also coaxially fixed with a first handwheel.

[0012] As a further supplement to this solution, the second adjustment mechanism includes a second adjustment frame, a lifting bracket, and a second handwheel;

[0013] The second adjustment frame is installed on the upper end of the machine frame via a lifting bracket. A linear motor is slidably installed on the second adjustment frame along its own length. A second handwheel is installed on the lifting bracket and is used to adjust the height at which the lifting bracket raises the second adjustment frame.

[0014] As a further supplement to this solution, the limit assembly includes an upper limit switch and a lower limit switch, which are arranged vertically and mounted on the frame.

[0015] As a further supplement to this solution, multiple support components are symmetrically installed around the periphery of the mobile trolley. The support components include a lead screw and a support block. The lead screw has a vertical thread that runs through the mobile trolley, and the support block is rotatably installed at the bottom end of the lead screw.

[0016] In summary, the technical effects and advantages of this utility model are as follows:

[0017] 1. In this utility model, by cooperating with a geared motor, transmission components, threaded shaft, and threaded sleeve, in an emergency where the machine head needs to be lifted quickly, the controller controls the geared motor to start. The geared motor, together with the first sprocket and the second sprocket, drives the threaded shaft to rotate. The rotating threaded shaft causes the threaded sleeve to lift one end of the first adjusting bracket, thereby lifting the machine head of the linear motor upward, thus avoiding collision between the machine head and the molten glass.

[0018] 2. In this utility model, by setting up a first handwheel, a second adjustment mechanism, and a second handwheel, the operator can manually rotate the first handwheel or the second handwheel to adjust the height of the linear motor head. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the three-dimensional structure in this embodiment.

[0021] In the diagram: 1. Moving trolley; 2. Frame; 3. First adjusting frame; 4. Linear motor; 5. Gear motor; 6. Steering support plate; 7. Threaded sleeve; 8. Threaded shaft; 9. First sprocket; 10. Second sprocket; 11. First handwheel; 12. Second adjusting frame; 13. Lifting bracket; 14. Second handwheel; 15. Upper limit switch; 16. Lower limit switch; 17. Lead screw; 18. Support block. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example: Reference Figure 1 The tin bath linear motor emergency lifting device shown includes a mobile trolley 1, a frame 2 mounted on the upper end of the mobile trolley 1, a first adjustment mechanism mounted on one side of the upper end of the frame 2, and a second adjustment mechanism mounted on the other side of the upper end of the frame 2.

[0024] The first adjustment mechanism includes a first adjustment frame 3, a reduction motor 5, a threaded sleeve 7, a threaded shaft 8, and a transmission assembly. The first adjustment frame 3 is mounted on the frame 2. The threaded shaft 8 is vertically and rotatably mounted on the frame 2. The threaded sleeve 7 is threaded onto the outside of the threaded shaft 8, and the top end of the threaded sleeve 7 is rotatably connected to the first adjustment frame 3. A linear motor 4 is mounted on the first adjustment frame 3. The reduction motor 5 is mounted on the side end of the frame 2. The transmission assembly is connected between the output end of the reduction motor 5 and the threaded shaft 8.

[0025] To prevent the threaded sleeve 7 from deflecting under force, a steering support plate 6 is installed on the frame 2 to limit the movement of the threaded sleeve 7.

[0026] Regarding the aforementioned transmission components, specifically, the transmission components include a first sprocket 9 and a second sprocket 10. The first sprocket 9 is coaxially fixed with the threaded shaft 8, and the second sprocket 10 is coaxially fixed with the output end of the geared motor 5. The geared motor 5 can be a conventional model, such as a geared motor of model RV75. The geared motor 5 is electrically connected to the controller using conventional technology, and the controller is connected to the central control room for signal control, which is convenient for operators to control. The first sprocket 9 and the second sprocket 10 are connected by a transmission chain.

[0027] The diameter ratio of the first sprocket 9 to the second sprocket 10 is 2:1. Using conventional techniques, the torque required for the threaded shaft 8 to rotate the linear motor 4 is calculated to be 421 NM based on the weight of the linear motor head and the base point. Thus, the required output torque of the geared motor 5 is calculated to be 210 NM. Since the head needs to be lifted quickly in an emergency, the speed of the geared motor 5 needs to reach 1420 r / min to lift the linear motor head 4 by 10 cm within 30 seconds, thereby avoiding collision between the head and the molten glass. Of course, to make it more suitable for emergency situations, it can be used in conjunction with a monitoring device that measures the molten glass level in the tin bath in real time using conventional techniques.

[0028] In addition, the threaded shaft 8 is coaxially fixed with a first handwheel 11, which the operator can manually turn to rotate the threaded shaft 8.

[0029] The second adjustment mechanism includes a second adjustment frame 12, a lifting bracket 13, and a second handwheel 14. The second adjustment frame 12 is installed on the upper end of the frame 2 via the lifting bracket 13. The linear motor 4 is slidably installed on the second adjustment frame 12 along its own length direction. The second handwheel 14 is installed on the lifting bracket 13 and is used to adjust the height at which the lifting bracket 13 raises the second adjustment frame 12.

[0030] The lifting bracket 13 uses two sets of conventional connecting parts. Each set of connecting parts has two connecting rods, which are rotatably mounted on a mounting block. The ends of the two connecting rods away from the mounting block are rotatably connected to the second adjusting frame 12 and the frame 2, respectively. A threaded rod is coaxially fixed on the second handwheel 14. The threaded rod has two opposite threaded sections symmetrically arranged on it. The mounting blocks on the two sets of connecting parts are symmetrically threaded onto the two opposite threaded sections. When the second handwheel 14 is rotated, the threaded rod causes the two mounting blocks to move away from or closer to each other, thereby causing the second adjusting frame 12 to rise or fall accordingly.

[0031] The frame 2 is equipped with a limit component, which is used to limit the vertical movement of the linear motor 4. Specifically, the limit component includes an upper limit switch 15 and a lower limit switch 16, which are arranged vertically and mounted on the frame 2. The upper limit switch 15 and the lower limit switch 16 are conventional pressure detection switches and are electrically connected to the controller using conventional technology. When the linear motor 4 touches the upper limit switch 15 or the lower limit switch 16, its pressure signal changes, which is then sent to the controller, and the controller stops the geared motor 5.

[0032] To facilitate fixing the device, multiple support components are symmetrically installed around the periphery of the mobile trolley 1. The support components include a lead screw 17 and a support block 18. The lead screw 17 has a vertical thread that passes through the mobile trolley 1, and the support block 18 is rotatably installed at the bottom end of the lead screw 17. Rotating the lead screw 17 causes the support block 18 to lift the mobile trolley 1, thus achieving overall fixation of the device relative to the ground.

[0033] The working principle of this utility model is as follows: Normally, the operator can manually adjust the height of the linear motor 4 by manually turning the first handwheel 11 or the second handwheel 14.

[0034] When the central control room discovers an accident inside the tin bath or large silica lumps on the glass through the tin bath endoscope, the on-site reduction motor 5 is quickly started through the background control. The reduction motor 5, together with the first sprocket 9 and the second sprocket 10, drives the threaded shaft 8 to rotate. The rotating threaded shaft 8 causes the threaded sleeve 7 to lift one end of the first adjusting bracket 3, thereby causing the head of the linear motor 4 to lift upwards until the body of the linear motor 4 touches the lower limit switch 16. At this point, the reduction motor 5 stops rotating and remains self-locked to prevent the head from colliding with the molten glass.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., 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 tin bath linear motor emergency lifting device, comprising a moving trolley (1), characterized in that, The upper end of the mobile trolley (1) is equipped with a frame (2), a first adjustment mechanism is installed on one side of the upper end of the frame (2), and a second adjustment mechanism is installed on the other side of the upper end of the frame (2). The first adjustment mechanism includes a first adjustment frame (3), a reduction motor (5), a threaded sleeve (7), a threaded shaft (8), and a transmission assembly; The threaded shaft (8) is vertically rotatably mounted on the frame (2). The threaded sleeve (7) is threaded onto the outside of the threaded shaft (8), and the top end of the threaded sleeve (7) is rotatably connected to the first adjusting frame (3). A linear motor (4) is mounted on the first adjusting frame (3). The geared motor (5) is mounted on the side end of the frame (2). The transmission assembly is connected between the output end of the geared motor (5) and the threaded shaft (8). A limiting component is installed on the frame (2), which is used to limit the vertical movement of the linear motor (4) body.

2. The emergency lifting device for a linear motor in a tin bath according to claim 1, characterized in that: The transmission assembly includes a first sprocket (9) and a second sprocket (10). The first sprocket (9) is coaxially fixed with the threaded shaft (8), and the second sprocket (10) is coaxially fixed with the output end of the geared motor (5). The first sprocket (9) and the second sprocket (10) are connected by a transmission chain.

3. The emergency lifting device for a linear motor in a tin bath according to claim 2, characterized in that: The diameter ratio of the first sprocket (9) to the second sprocket (10) is 2:

1.

4. The tin bath linear motor emergency lifting device according to claim 1, characterized in that: The threaded shaft (8) is also coaxially fixed with a first handwheel (11).

5. The emergency lifting device for a linear motor in a tin bath according to claim 1, characterized in that: The second adjustment mechanism includes a second adjustment frame (12), a lifting bracket (13), and a second handwheel (14); The second adjustment frame (12) is installed on the upper end of the frame (2) via the lifting bracket (13). The linear motor (4) is slidably installed on the second adjustment frame (12) along its own length direction. The second handwheel (14) is installed on the lifting bracket (13) and is used to adjust the height of the lifting bracket (13) lifting the second adjustment frame (12).

6. The emergency lifting device for a linear motor in a tin bath according to claim 1, characterized in that: The limiting assembly includes an upper limit switch (15) and a lower limit switch (16), which are arranged vertically and mounted on the frame (2).

7. The emergency lifting device for a linear motor in a tin bath according to claim 1, characterized in that: The mobile trolley (1) is symmetrically equipped with multiple support components. The support components include a lead screw (17) and a support block (18). The lead screw (17) is vertically threaded through the mobile trolley (1), and the support block (18) is rotatably mounted on the bottom end of the lead screw (17).

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