A silicon core stove feeder limiting calibration tool

Abstract

The utility model provides a kind of silicon core furnace feeder limiting calibration tool, it is related to photovoltaic technical field.The utility model includes measuring scale, it is matched with the vice room of silicon core furnace, connecting seat is connected with the steel wire rope of feeder, weight is located in the bottom of connecting seat, wherein, the measuring scale is contacted with the bottom of vice room, the measuring scale is equipped with the scale of cooperation with weight in vertical direction.The utility model can quickly carry out steel wire rope calibration limiting position.

Description

Technical Field

[0001] The utility model relates to the field of photovoltaic technology, in particular to a limit calibration tool for a silicon core furnace feeder. Background Art

[0002] In the photovoltaic industry, silicon core is a key basic material, and the iteration of its production technology directly affects the industry efficiency and cost. At present, the mainstream square silicon core production adopts the Czochralski method to prepare polycrystalline ingots, which are cut and annealed to form square silicon cores. With technological innovation, a new round silicon core technology has emerged at the historic moment, which can be put into the furnace without cutting and pickling, shortening the production cycle to 48 hours and simplifying the process by more than 50%.

[0003] However, there are bottlenecks in the refeeding limit device matched with the new round silicon core technology. The existing round silicon core refeeding device drives the feeding barrel to lift through a servo motor, and is combined with a limit screw at the output end of a worm gear reducer, a limit nut and a proximity switch. When the feeder lifts the feeding barrel or product through a steel wire rope, it is necessary to manually calibrate the limit position after the steel wire rope is replaced (as a vulnerable part, the steel wire rope needs to be replaced regularly) or inspected (to ensure the safe and stable operation of the equipment, the feeder steel wire rope needs to be inspected regularly). Each calibration takes about 30 minutes, and manual operation easily leads to a limit deviation of ±2mm, which affects the silicon core pulling precision and production continuity. Contents of the Utility Model

[0004] The purpose of the utility model is to develop a limit calibration tool for a silicon core furnace feeder that can quickly calibrate the limit position of a steel wire rope.

[0005] The utility model is realized by the following technical solution:

[0006] A limit calibration tool for a silicon core furnace feeder, comprising:

[0007] a measuring ruler, matched with an auxiliary chamber of a silicon core furnace;

[0008] a connecting seat, connected with a steel wire rope of the feeder;

[0009] a heavy hammer, arranged at the bottom of the connecting seat;

[0010] wherein the measuring ruler is in contact with the bottom of the auxiliary chamber, and the measuring ruler is provided with scales matched with the heavy hammer in the vertical direction.

[0011] optionally, the measuring ruler comprises a horizontal part and a vertical part, the horizontal part is in contact with the bottom of the auxiliary chamber, the vertical part is arranged perpendicular to the horizontal part, the scales are arranged on the vertical part, and the starting point of the scales is located on the top surface of the horizontal part.

[0012] optionally, the horizontal part and the vertical part are of a straight rod structure or a straight plate structure.

[0013] Optionally, the connecting seat and the counterweight are coaxial cylindrical, and the bottom of the counterweight is conical.

[0014] Optionally, the end of the wire rope is provided with a spherical connecting block, and the center of the connecting seat is provided with a limiting groove that cooperates with the connecting block. The top center of the limiting groove is provided with a U-shaped groove that cooperates with the wire rope. The U-shaped groove is located at the top of the connecting seat, and the U-shaped groove and the limiting groove penetrate the connecting seat to one side.

[0015] Optionally, the diameter of the connecting block ball is larger than the outer diameter of the wire rope, the width of the U-shaped groove is adapted to the wire rope, and the width of the limiting groove is adapted to the diameter of the connecting block ball.

[0016] Optionally, the inner end and top surface of the limiting groove are arc surfaces adapted to the connecting block.

[0017] The beneficial effects of this utility model are:

[0018] This invention utilizes the bottom of the auxiliary chamber as a reference to ensure no reference error during calibration. The bottom connecting block of the wire rope mates with the arc-shaped top surface of the limiting groove on the connecting seat, ensuring that the positional deviation of the connecting seat and the wire rope after engagement is ≤0.5mm. When the feeder rises and falls, the connecting seat and the counterweight move with the wire rope. The cone at the bottom of the counterweight mates with the measuring ruler, directly limiting the upper and lower limit positions of the wire rope. There is no need to use a material cylinder for physical calibration. This invention has a simple structure, low cost, and easy operation, saving time on calibration and inspection, and the fixed dimensions prevent errors. 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 structural diagram of the present utility model;

[0021] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0022] Reference numerals: 1. Sub-chamber; 2. Wire rope; 3. Measuring ruler; 31. Horizontal part; 32. Vertical part; 4. Counterweight; 5. Connecting seat; 51. Limiting groove; 52. U-shaped groove; 6. Connecting block. Detailed Implementation

[0023] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0024] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0025] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0026] like Figure 1 and Figure 2 As shown, this utility model discloses a limit calibration fixture for a silicon core furnace feeder, including a measuring ruler 3 and a connecting seat 5. The measuring ruler 3 is placed at the bottom of the auxiliary chamber 1 of the silicon core furnace as a reference for calibrating the limit position of the wire rope 2. The connecting seat 5 is connected to the wire rope 2 and cooperates with the measuring ruler 3 to calibrate the limit position of the wire rope 2.

[0027] The measuring ruler 3 includes a horizontal part 31 and a vertical part 32. The horizontal part 31 is a straight rod structure or a straight plate structure and is in contact with the bottom of the auxiliary chamber 1. The vertical part 32 is set perpendicular to the horizontal part 31 and is also a straight rod structure or a straight plate structure. The vertical part 32 is provided with a scale, and the starting point of the scale (measurement zero point) is located on the top surface of the horizontal part 31.

[0028] The connecting seat 5 is cylindrical, and a limiting groove 51 is provided in the center of the connecting seat 5. A U-shaped groove 52 is provided at the top center of the limiting groove 51. The U-shaped groove 52 is located at the top of the connecting seat 5. Both the U-shaped groove 52 and the limiting groove 51 penetrate the connecting seat 5 to one side, so that the wire rope 2 can slide into the U-shaped groove 52 and the limiting groove 51 laterally.

[0029] The end of the wire rope 2 is provided with a spherical connecting block 6. The diameter of the connecting block 6 is larger than the outer diameter of the wire rope 2. The width of the U-shaped groove 52 is adapted to the wire rope 2. The width of the limiting groove 51 is adapted to the diameter of the connecting block 6. The inner end and top surface of the limiting groove 51 are arc surfaces adapted to the connecting block 6.

[0030] The bottom of the connecting seat 5 is provided with a cylindrical weight 4, which is coaxially connected to the connecting seat 5. The bottom of the weight 4 is conical. The weight 4 ensures that the wire rope 2 is subjected to a downward tension of ≥200N.

[0031] When calibrating the limit position of the wire rope 2, connect the connecting seat 5 to the end of the wire rope 2, so that the end of the wire rope 2 slides into the limit groove 51 and the U-shaped groove 52. The connecting block 6 at the end of the wire rope 2 slides into the limit groove 51. When there is no external force, the weight 4 falls under its own weight, and the connecting block 6 at the end of the wire rope 2 abuts against the top of the limit groove 51. Place the measuring ruler 3 at the bottom of the auxiliary chamber 1, so that the horizontal part 31 of the measuring ruler 3 is flush with the bottom of the auxiliary chamber 1, and the vertical part 32 is vertical and located on the side of the weight 4. The position of the bottom of the weight 4 on the scale of the vertical part 32 serves as a reference for calibrating the limit position of the wire rope 2.

[0032] This invention utilizes the bottom of the auxiliary chamber 1 as a reference to ensure no reference error during calibration. The bottom connecting block 6 of the wire rope 2 mates with the arc-shaped top surface of the limiting groove 51 of the connecting seat 5, ensuring that the positional deviation of the connecting seat 5 and the wire rope 2 after engagement is ≤0.5mm. When the feeder rises and falls, the connecting seat 5 and the counterweight 4 move with the wire rope 2. The bottom cone of the counterweight 4 mates with the measuring ruler 3, directly limiting the upper and lower limit positions of the wire rope 2. There is no need to use a material cylinder for physical calibration. This invention has a simple structure, low cost, and easy operation. It can save time for calibration and inspection, and the fixed dimensions prevent errors.

[0033] The above embodiments are merely preferred embodiments of this utility model and are not intended to limit the technical solutions of this utility model. Any technical solution that can be implemented based on the above embodiments without creative effort should be considered to fall within the scope of protection of this utility model patent.

Claims

1. A limit calibration fixture for a silicon core furnace feeder, characterized in that, include: Measuring ruler, used in conjunction with the auxiliary chamber of the silicon core furnace; Connecting seat, which connects to the wire rope of the feeder; A counterweight is located at the bottom of the connecting seat; The measuring ruler is in contact with the bottom of the auxiliary chamber, and the measuring ruler has a scale in the vertical direction that cooperates with the counterweight.

2. The silicon core furnace feeder limit calibration fixture according to claim 1, characterized in that, The measuring ruler includes a horizontal part and a vertical part. The horizontal part is in contact with the bottom of the auxiliary chamber, and the vertical part is set perpendicular to the horizontal part. The scale is set on the vertical part, and the starting point of the scale is located on the top surface of the horizontal part.

3. The silicon core furnace feeder limit calibration fixture according to claim 2, characterized in that, The horizontal and vertical sections are straight rod structures or straight plate structures.

4. The silicon core furnace feeder limit calibration fixture according to claim 1, characterized in that, The connecting seat and the counterweight are coaxial cylindrical, and the bottom of the counterweight is conical.

5. The silicon core furnace feeder limit calibration fixture according to claim 4, characterized in that, The end of the wire rope is provided with a spherical connecting block, and the center of the connecting seat is provided with a limiting groove that cooperates with the connecting block. The top center of the limiting groove is provided with a U-shaped groove that cooperates with the wire rope. The U-shaped groove is located at the top of the connecting seat, and the U-shaped groove and the limiting groove penetrate the connecting seat to one side.

6. The silicon core furnace feeder limit calibration fixture according to claim 5, characterized in that, The diameter of the connecting block ball is larger than the outer diameter of the wire rope, the width of the U-shaped groove is adapted to the wire rope, and the width of the limiting groove is adapted to the diameter of the connecting block ball.

7. The silicon core furnace feeder limit calibration fixture according to claim 6, characterized in that, The inner end and top surface of the limiting groove are arc surfaces adapted to the connecting block.

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