A novel reducing electrode polishing device

Abstract

The utility model discloses a novel reduction electrode polishing device relates to the polishing equipment technical field of electrode in polycrystalline silicon production, including power mechanism, transmission mechanism, cleaning component, base and handle, and the base is used for fixing handle, power mechanism, transmission mechanism and cleaning component, the cleaning component includes the hoop disc, the end face brush for cleaning the upper end face of reduction electrode and the side brush for cleaning the periphery of reduction electrode, and the connecting shaft I of end face brush passes through the middle part of hoop disc and is connected with transmission mechanism, and the side brush is assembled at the periphery of hoop disc through connecting shaft II, and the hoop disc is connected with transmission mechanism, and the power mechanism drives transmission mechanism and drives hoop disc and rotates end face brush rotation, solves the problem that manual polishing reduction electrode cleaning time is long, and the cleaning difficulty is big, and the cleaning is not thorough in prior art.

Description

Technical Field

[0001] This utility model relates to the technical field of electrode polishing equipment in polycrystalline silicon production, and specifically to a novel reduction electrode polishing device. Background Technology

[0002] In the chassis cleaning process after the polysilicon reduction furnace is lifted out of the furnace, the existing technology adopts a two-stage treatment mode: first, an industrial vacuum cleaner is used to remove the loosely accumulated silicon powder around the electrodes, and then an operator manually polishes the electrode surface with sandpaper. This technology has the following significant drawbacks: 1. Manual polishing is inefficient: It takes about 5 to 10 minutes to process a single electrode, and the processing effect is greatly affected by the operator's skill level. The amount of residual silicon powder on the electrode surface is unstable. 2. Dust pollution and safety hazards: Dry friction between sandpaper and electrodes generates suspended dust, which not only poses safety risks but also affects the cleanliness of the production workshop; 3. Cleaning blind spots affect product quality: Manual polishing is difficult to cover the electrode cone surface joint area, causing silicon powder to form sintering residues in the subsequent high-temperature process of 650~1200℃, which in turn affects electrical contact performance and product quality.

[0003] The aforementioned technical challenges directly lead to longer cleaning times for the reduction furnace chassis, increased personnel safety risks, and a higher frequency of electrode replacement. Summary of the Invention

[0004] The purpose of this invention is to provide a novel reduction electrode polishing device to solve the problems of long cleaning time and incomplete cleaning of reduction electrodes by manual polishing in the prior art.

[0005] This utility model is achieved through the following technical solution: A novel electrode polishing device includes a power mechanism, a transmission mechanism, a cleaning component, a base, and a handle. The base is used to fix the handle, the power mechanism, the transmission mechanism, and the cleaning component. The cleaning assembly includes a clamping plate, an end face brush for cleaning the upper surface of the reduction electrode, and a side brush for cleaning the periphery of the reduction electrode. The connecting shaft I of the end face brush passes through the middle of the clamping plate and is connected to the transmission mechanism. The side brush is mounted on the periphery of the clamping plate through the connecting shaft II. The clamping plate is connected to the transmission mechanism. The power mechanism drives the clamping plate and the rotating end face brush to rotate through the transmission mechanism.

[0006] Furthermore, the power mechanism is a pneumatic motor.

[0007] Furthermore, the base includes a base plate for mounting the power mechanism and an electrode positioning seat. The handle is fixed to the base plate via support rod I. The base plate is fixed to the upper bearing end cover of the transmission mechanism via support rod II. The lower bearing end cover of the transmission mechanism is fixed to the electrode positioning seat via support rod III.

[0008] Furthermore, the transmission mechanism includes an upper bearing end cover, a coupling, a main rotating shaft, a bearing, a bearing housing, and a lower bearing end cover. The output shaft of the power mechanism is connected to the main rotating shaft through the coupling, and the main rotating shaft is supported on the lower bearing end cover by the bearing and the bearing housing.

[0009] Furthermore, the bearing housing is sealed by an oil seal structure, and the main rotating shaft is a hollow shaft.

[0010] Furthermore, the axial position of the main rotating shaft is fixed by a round nut.

[0011] Furthermore, the end-face brush is a cup-shaped end-face brush with a diameter of 80~150mm.

[0012] Furthermore, the side brush is a conical brush, and there are 2 to 4 side brushes. All the side brushes are evenly distributed on the periphery of the clamping plate, and the bristles of the side brushes are arranged in a spiral at an angle of 25 to 30 degrees.

[0013] Furthermore, the clamp plate is connected and fixed to the main rotating shaft.

[0014] Furthermore, it also includes a control switch, which is connected to the drive mechanism and is used to control the start and stop of the drive mechanism. The control switch is located on the handle.

[0015] Compared with the prior art, this utility model has the following advantages and beneficial effects: I. This utility model proposes a novel reduction electrode polishing device with ingenious structure and convenient use. The device can be started and stopped by controlling the drive mechanism, and the upper end face and conical surface of the reduction electrode can be polished simultaneously. This avoids the operator from having to bend over frequently, and is highly efficient, clean after polishing, and safe and environmentally friendly.

[0016] Second, in this utility model, the power mechanism is a pneumatic motor. The pneumatic motor uses compressed air as power and will not generate electric sparks during operation. This makes the device extremely safe during the grinding, cleaning and reduction of the electrode, and can effectively avoid explosion accidents caused by electrical sparks.

[0017] III. In this utility model, the base includes a base plate and an electrode positioning seat. The handle, transmission mechanism, and cleaning components are connected and fixed via support rods I, II, and III. This facilitates accurate positioning of the device at the appropriate location on the reduction electrode during use, ensuring that the mounting reference surfaces of all components are level, improving efficiency, and simplifying installation and maintenance. Furthermore, the cooperation of the base plate, electrode positioning seat, support rods I, II, and III forms a stable frame, ensuring no displacement of the electrode during grinding.

[0018] IV. In this utility model, the transmission mechanism includes an upper bearing end cover, a coupling, a main rotating shaft, a bearing, a bearing seat, and a lower bearing end cover. The output shaft of the power mechanism is connected to the main rotating shaft through the coupling, and the main rotating shaft is supported on the lower bearing end cover by the bearing and the bearing seat. This transmission mechanism includes two stages of transmission: the first stage is a drive mechanism—a pneumatic motor—directly driving the top end face brush to rotate; the second stage is a drive mechanism that drives the connected clamping disc to rotate, thereby driving the side brushes to rotate and achieving grinding of the reduction electrode conical surface. For example, the drive mechanism uses helical gears and other transmission components to distribute power to three radial output shafts to drive the side brushes, achieving efficient power distribution for multiple cleaning units driven by a single drive.

[0019] V. In this utility model, the bearing housing is sealed by an oil seal structure to protect the structure of the bearing area and prevent dust intrusion or lubricating oil leakage. The main rotating shaft preferably adopts a hollow shaft structure, which reduces space occupancy and is suitable for the narrow electrode arrangement on the reduction furnace chassis. At the same time, it makes the device lighter and easier for frequent manual operation.

[0020] VI. In this utility model, the axial position of the main rotating shaft is fixed by a round nut to prevent displacement.

[0021] VII. In this utility model, the end face brush is a cup-shaped end face brush with a diameter of 80~150mm, and the side brush is a conical brush with 2~4 side brushes. All the side brushes are evenly distributed on the periphery of the clamping plate, and the bristles of the side brushes are arranged in a spiral at an angle of 25~30°, covering the upper end face and periphery of the reduction electrode.

[0022] 8. This utility model also includes a control switch, which is connected to the drive mechanism and is used to control the start and stop of the drive mechanism. The control switch is located on the handle, and the operator can control the start and stop of the device by controlling the control switch on the handle, so as to achieve grinding and cleaning of the reduction electrode without bending over. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the reduction electrode polishing device in this utility model.

[0024] Figure 2yes Figure 1 Longitudinal section view.

[0025] Figure 3 yes Figure 2 A magnified view of a portion of the image.

[0026] Figure 4 This is a schematic diagram of another embodiment of the reduction electrode polishing device.

[0027] Figure 5 This is a structural diagram of components such as the cleaning assembly and electrode positioning base.

[0028] The components include: 1. Power mechanism; 2. Transmission mechanism; 3. Cleaning component; 4. Base; 5. Handle; 6. Reduction electrode; 7. Support rod I; 8. Support rod II; 9. Control switch; 10. Support rod III; 2.1. Upper bearing end cover; 2.2. Oil injection hole; 2.3. Coupling; 2.4. Main rotating shaft; 2.5. Bearing; 2.6. Bearing seat; 2.7. Lower bearing end cover; 2.8. Oil seal structure; 2.9. Round nut; 3.1. Clamping plate; 3.2. End face brush; 3.3. Side brush; 4.1. Base plate; 4.2. Electrode positioning seat; 3.2.1. Connecting shaft I; 3.3.1. Connecting shaft II. Detailed Implementation

[0029] The present invention will be further described in detail below with reference to the embodiments, but the implementation of the present invention is not limited thereto.

[0030] Example 1 A novel electrode polishing device includes a power mechanism 1, a transmission mechanism 2, a cleaning component 3, a base 4, and a handle 5. The base 4 is used to fix the handle 5, the power mechanism 1, the transmission mechanism 2, and the cleaning component 3. (See reference) Figure 1 , 2 .

[0031] The cleaning assembly 3 includes a clamping plate 3.1, an end face brush 3.2 for cleaning the upper surface of the reduction electrode 6, and a side brush 3.3 for cleaning the periphery of the reduction electrode 6. The connecting shaft I 3.2.1 of the end face brush 3.2 passes through the middle of the clamping plate 3.1 and is connected to the transmission mechanism 2. The side brush 3.3 is assembled on the periphery of the clamping plate 3.1 through the connecting shaft II 3.3.1. The clamping plate 3.1 is connected to the transmission mechanism 2. The power mechanism 1 drives the clamping plate 3.1 and the rotating end face brush 3.2 to rotate by driving the transmission mechanism 2.

[0032] Preferably, the power mechanism 1 is a pneumatic motor.

[0033] Example 2 This embodiment is a further optimization of embodiment 1, the difference being that, as referenced... Figure 2Alternatively, the base 4 includes a base plate 4.1 for mounting the power mechanism 1 and an electrode positioning seat 4.2. The handle 5 is fixed to the base plate 4.1 via a support rod I 7. The base plate 4.1 is fixed to the upper bearing end cover 2.1 of the transmission mechanism 2 via a support rod II 8. The lower bearing end cover 2.7 of the transmission mechanism 2 is fixed to the electrode positioning seat 4.2 via a support rod III 10.

[0034] Example 3 The difference between this embodiment and embodiments 1-2 is that, in reference to... Figure 2 Alternatively, the transmission mechanism 2 includes an upper bearing end cover 2.1, a coupling 2.3, a main rotating shaft 2.4, a bearing 2.5, a bearing seat 2.6, and a lower bearing end cover 2.7. The output shaft of the power mechanism 1 is connected to the main rotating shaft 2.4 through the coupling 2.3, and the main rotating shaft 2.4 is supported on the lower bearing end cover 2.7 through the bearing 2.5 and the bearing seat 2.6.

[0035] Preferably, the bearing housing 2.6 is sealed by an oil seal structure 2.8, and lubricating oil is injected into the oil seal structure 2.8 through the oil injection hole 2.2. The main rotating shaft 2.4 is a hollow shaft.

[0036] Preferably, the axial position of the main rotating shaft 2.4 is fixed by a round nut 2.9.

[0037] Example 4 The difference between this embodiment and embodiments 1-3 is that, in reference... Figure 3 The end face brush 3.2 is a cup-shaped end face brush, and the diameter of the end face brush 3.2 is preferably designed to be 80~150mm.

[0038] Example 5 The difference between this embodiment and embodiments 1-4 is that, in reference... Figure 3 , 5 The side brush 3.3 is a conical brush, and there are 2 to 4 side brushes 3.3. All the side brushes 3.3 are evenly distributed on the periphery of the clamping plate 3.1, and the bristles of the side brushes 3.3 are arranged in a spiral at an angle of 25 to 30 degrees.

[0039] Example 6 The difference between this embodiment and embodiments 1-5 is that, in reference... Figure 3 , 5 The clamping plate 3.1 is connected and fixed to the main rotating shaft 2.4. The clamping plate 3.1 is detachably connected to the side brush 3.3. The installation angle of the side brush 3.3 (i.e., the angle between the main rotating shaft 2.4 and the central axis of the main rotating shaft 2.4) is adjustable, and the adjustment angle is ±15°. During installation, the side brush 3.3 can be adjusted to match the taper of the reduction electrode 6 by adjusting the position of the side brush 3.3 and cooperating with the fasteners.

[0040] Example 7 The difference between this embodiment and embodiments 1-6 is that, in reference to... Figures 2-4 It also includes a control switch 9, which is connected to the drive mechanism and is used to control the start and stop of the drive mechanism. The control switch 9 is located on the handle 5.

[0041] Example 8 To facilitate public understanding of this utility model, this embodiment uses a preferred novel reduction electrode polishing device to polish a reduction electrode 6 with a diameter of 100mm as an example to further illustrate this solution.

[0042] refer to Figures 2-5 The device includes a power mechanism 1, a transmission mechanism 2, a cleaning component 3, a base 4, and a handle 5. The base 4 is used to fix the handle 5, the power mechanism 1, the transmission mechanism 2, and the cleaning component 3. The cleaning component 3 includes a clamping plate 3.1, an end face brush 3.2 for cleaning the upper surface of the reduction electrode 6, and a side brush 3.3 for cleaning the periphery of the reduction electrode 6. The connecting shaft I 3.2.1 of the end face brush 3.2 passes through the middle of the clamping plate 3.1 and is connected to the transmission mechanism 2. The side brush 3.3 is assembled on the periphery of the clamping plate 3.1 through the connecting shaft II 3.3.1. The clamping plate 3.1 is connected to the transmission mechanism 2. The power mechanism 1 drives the clamping plate 3.1 and the rotating end face brush 3.2 to rotate by driving the transmission mechanism 2.

[0043] In this embodiment, the power mechanism 1 is a pneumatic motor.

[0044] In this embodiment, the base 4 includes a base plate 4.1 for mounting the power mechanism 1 and an electrode positioning seat 4.2. The handle 5 is fixed to the base plate 4.1 via a support rod I 7. The base plate 4.1 is fixed to the upper bearing end cover 2.1 of the transmission mechanism 2 via a support rod II 8. The lower bearing end cover 2.7 of the transmission mechanism 2 is fixed to the electrode positioning seat 4.2 via a support rod III 10. The base plate 4.1 helps ensure the stability of power transmission, the support rods I 7, II 8, and III 10 help enhance the structural rigidity, and the electrode positioning seat 4.2 helps to position the reduction electrode grinding device.

[0045] In this embodiment, the transmission mechanism 2 includes an upper bearing end cover 2.1, a coupling 2.3, a main rotating shaft 2.4, a bearing 2.5, a bearing seat 2.6, and a lower bearing end cover 2.7. The output shaft of the power mechanism 1 is connected to the main rotating shaft 2.4 via the coupling 2.3. The main rotating shaft 2.4 is supported on the lower bearing end cover 2.7 via the bearing 2.5 and the bearing seat 2.6. The coupling 2.3 facilitates flexible power transmission and reduces vibration. The design of the bearing 2.5, bearing seat 2.6, and other structures helps maintain stability and concentricity during high-speed rotation.

[0046] In this embodiment, the bearing housing 2.6 is sealed by an oil seal structure 2.8, and the main rotating shaft 2.4 is a hollow shaft.

[0047] In this embodiment, the axial position of the main rotating shaft 2.4 is fixed by a round nut 2.9.

[0048] In this embodiment, the end-face brush 3.2 is a cup-shaped end-face brush with a diameter of 100 mm. The side brush 3.3 is a conical brush, comprising three brushes, all evenly distributed around the periphery of the clamping disc 3.1, with the bristles of the side brush 3.3 arranged in a spiral at a 30° angle. The bristles of both the end-face brush 3.2 and the side brush 3.3 are made of silicon carbide, with a single bundle diameter of 3 mm and a length of 50 mm. The bristles of the end-face brush 3.2 can cover the upper end face of the reduction electrode 6; when the side brush 3.3 is in operation, its bristles can cover the entire periphery of the reduction electrode 6.

[0049] In this embodiment, the clamping plate 3.1 is fixedly connected to the main rotating shaft 2.4, and the clamping plate 3.1 is detachably connected to the side brush 3.3. The installation angle of the side brush 3.3 (i.e., the angle between the main rotating shaft 2.4 and the central axis of the main rotating shaft 2.4) is adjustable, and the adjustment angle is ±15°. During installation, the side brush 3.3 can be matched with the taper of the reduction electrode 6 by adjusting the position of the side brush 3.3 and tightening the fasteners.

[0050] In this embodiment, a control switch 9 is also included. The control switch 9 is connected to the drive mechanism and is used to control the start and stop of the drive mechanism. The control switch 9 is located on the handle 5.

[0051] In this embodiment, the reduction electrode 6 is divided into two parts, the upper end face and the side face, for polishing. The upper end face of the reduction electrode 6 is treated with an end face brush 3.2, and the side face brush 3.3 is closely attached to the side face of the reduction electrode 6 for treatment. At the same time, the upper end face and the radial conical surface of the reduction electrode 6 are cleaned simultaneously, which improves the efficiency by 2 to 5 times compared with manual cleaning.

[0052] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present invention shall fall within the protection scope of the present invention.

Claims

1. A novel reducing electrode polishing device, characterized in that: It includes a power mechanism (1), a transmission mechanism (2), a cleaning component (3), a base (4), and a handle (5), with the base (4) used to fix the handle (5), the power mechanism (1), the transmission mechanism (2), and the cleaning component (3). The cleaning component (3) includes a clamping plate (3.1), an end face brush (3.2) for cleaning the upper surface of the reduction electrode (6), and a side brush (3.3) for cleaning the periphery of the reduction electrode (6). The connecting shaft I (3.2.1) of the end face brush (3.2) passes through the middle of the clamping plate (3.1) and is connected to the transmission mechanism (2). The side brush (3.3) is mounted on the periphery of the clamping plate (3.1) through the connecting shaft II (3.3.1). The clamping plate (3.1) is connected to the transmission mechanism (2). The power mechanism (1) drives the clamping plate (3.1) and the rotating end face brush (3.2) to rotate by driving the transmission mechanism (2).

2. The novel reducing electrode polishing device according to claim 1, characterized in that: The power mechanism (1) is a pneumatic motor.

3. The novel reducing electrode polishing device according to claim 1, characterized in that: The base (4) includes a base plate (4.1) for mounting the power mechanism (1) and an electrode positioning seat (4.2). The handle (5) is installed and fixed to the base plate (4.1) via support rod I (7), the base plate (4.1) is connected and fixed to the upper bearing end cover (2.1) of the transmission mechanism (2) via support rod II (8), and the lower bearing end cover (2.7) of the transmission mechanism (2) is connected and fixed to the electrode positioning seat (4.2) via support rod III (10).

4. The novel reducing electrode polishing device according to claim 1, characterized in that: The transmission mechanism (2) includes an upper bearing end cover (2.1), a coupling (2.3), a main rotating shaft (2.4), a bearing (2.5), a bearing seat (2.6), and a lower bearing end cover (2.7). The output shaft of the power mechanism (1) is connected to the main rotating shaft (2.4) through the coupling (2.3). The main rotating shaft (2.4) is supported on the lower bearing end cover (2.7) through the bearing (2.5) and the bearing seat (2.6).

5. The novel reducing electrode polishing device according to claim 4, characterized in that: The bearing housing (2.6) is sealed by an oil seal structure (2.8), and the main rotating shaft (2.4) is a hollow shaft.

6. The novel reducing electrode polishing device according to claim 4, characterized in that: The axial position of the main rotating shaft (2.4) is fixed by a round nut (2.9).

7. The novel reducing electrode polishing device according to claim 1, characterized in that: The end face brush (3.2) is a cup-shaped end face brush with a diameter of 80~150mm.

8. The novel reducing electrode polishing device according to claim 1, characterized in that: The side brush (3.3) is a conical brush. There are 2 to 4 side brushes (3.3). All the side brushes (3.3) are evenly distributed on the periphery of the clamping plate (3.1). The bristles of the side brushes (3.3) are arranged in a spiral at an angle of 25 to 30 degrees.

9. The novel reducing electrode polishing device according to claim 1, characterized in that: The clamp plate (3.1) is connected and fixed to the main rotating shaft (2.4).

10. A novel reducing electrode polishing device according to claim 1, characterized in that: It also includes a control switch (9), which is connected to the drive mechanism and is used to control the start and stop of the drive mechanism. The control switch (9) is located on the handle (5).

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