CN218507056U - Movable water retaining roller - Google Patents
Movable water retaining roller Download PDFInfo
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- CN218507056U CN218507056U CN202222852626.8U CN202222852626U CN218507056U CN 218507056 U CN218507056 U CN 218507056U CN 202222852626 U CN202222852626 U CN 202222852626U CN 218507056 U CN218507056 U CN 218507056U
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- roller
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- inner sleeve
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Abstract
The utility model discloses a movable water retaining roller, which comprises a roller axis, a bearing arranged at one end of the roller axis, a straight gear fixedly arranged at the other end of the roller axis, and a water retaining roller sheet axially sleeved at the outer ring of the roller axis; the outer ring of the roller axis is also axially sleeved with a movable roller positioning sheet and an inner sleeve, and the movable roller positioning sheet and the inner sleeve are radially positioned between the roller axis and the water retaining roller sheet; the axle center of the roller is tightly matched with the movable roller positioning sheet, the water retaining roller sheet is tightly matched with the inner sleeve, and the inner sleeve is fixedly connected with the movable roller positioning sheet. The utility model discloses a gyro wheel axle center and activity gyro wheel spacer tight-fitting, manger plate gyro wheel piece and endotheca tight-fitting, endotheca and the meshing of activity gyro wheel spacer can drive manger plate gyro wheel piece through the meshing and follow the axle center and rotate in step, have effectively reduced with the sliding friction on silicon chip surface to improve silicon chip fish tail problem and provide the product percent of pass.
Description
Technical Field
The utility model belongs to the technical field of solar wafer production facility technique and specifically relates to chain wet process processing equipment, in particular to movable manger plate gyro wheel.
Background
Photovoltaic power generation has become a technology that can replace fossil energy, relying on the ever-decreasing production costs and the increase in photoelectric conversion efficiency in recent years. At present, a crystalline silicon solar cell using a high-purity silicon material as a main raw material is a mainstream product, and in a crystalline silicon power generation system, one of the most core steps for realizing photoelectric conversion is a process of processing crystalline silicon into a cell for realizing photoelectric conversion, so that the photoelectric conversion efficiency of the cell also becomes a key index for embodying the technical level of the crystalline silicon power generation system, and higher requirements are provided for a preparation process of the solar cell.
In the manufacturing of the crystalline silicon solar cell, the wet etching process is to perform wet etching on the surface of a crystalline silicon wafer to form a surface textured structure, so that the reflectivity of the surface of the silicon wafer is reduced, sunlight is emitted on the surface of the silicon wafer for multiple times, and the absorption of the sunlight is increased. The texturing method generally adopted is to etch the surface of a monocrystalline silicon wafer by using alkali liquor to form a pyramid textured structure, or to etch the surface of a polycrystalline silicon wafer by using acid liquor to form a worm textured structure.
At present, a chain type texturing device is adopted for the polycrystalline silicon solar cell, and the conventional mode is that the water retaining of each groove body completely depends on an air knife device, so that a large amount of compressed air is consumed in the production process, and an air outlet of the air knife device is easy to block, thereby causing many process problems and unqualified cell pieces. In order to overcome the problems brought by an air knife, a water retaining roller is developed in the prior art to replace the air knife to realize the conveying and water retaining of the silicon wafer, the water retaining roller in the prior art is usually composed of an axis, a positioning piece and a water retaining roller piece, the water retaining roller piece limits the moving range through the close matching of the positioning piece and the axis, the moving range is small, the weight is large, the water retaining roller piece cannot rotate synchronously along with the axis and the silicon wafer, the friction is frequent in transmission, the product is easily damaged, the maintenance cost is increased, and the water retaining effect is also poor.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a movable water retaining roller, which comprises a roller axis, a bearing rotatably arranged at one end of the roller axis, a straight gear fixedly arranged at the other end of the roller axis, and a water retaining roller sheet axially sleeved at the outer ring of the roller axis;
the outer ring of the roller axis is also axially sleeved with a movable roller positioning sheet and an inner sleeve, and the movable roller positioning sheet and the inner sleeve are radially positioned between the roller axis and the water retaining roller sheet;
the roller axis is tightly matched with the movable roller positioning sheet, the water retaining roller sheet is tightly matched with the inner sleeve, and the inner sleeve is fixedly connected with the movable roller positioning sheet.
The water retaining roller piece comprises a plurality of sections of water retaining roller sub-pieces which are arranged in equal length so as to correspond to the number of silicon wafers arranged in parallel, and the inner sides of the two ends of each section of water retaining roller sub-piece are provided with a movable roller positioning piece and an inner sleeve which are sleeved on the outer ring of the roller axis.
The movable roller positioning piece is connected with the inner sleeve in a meshing mode through the first clamping teeth and the second clamping teeth.
And a movable gap is formed between the first clamping tooth and the second clamping tooth along the radial direction so as to realize buffer meshing.
The outer surface of the water blocking roller sheet is provided with a silica gel layer so as to improve the fit tightness and further avoid scratching the surface of the silicon wafer.
Through the technical scheme, the utility model discloses an activity manger plate gyro wheel through gyro wheel axle center and activity gyro wheel spacer tight-fitting, manger plate gyro wheel piece and endotheca tight-fitting, endotheca and activity gyro wheel spacer fixed connection, and rotation through the gyro wheel axle center drives the manger plate gyro wheel piece and follows the synchronous rotation in gyro wheel axle center, has effectively reduced the sliding friction on manger plate gyro wheel piece and silicon chip surface to improve silicon chip fish tail problem and improve the product percent of pass.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below.
Fig. 1 is a schematic view of a movable water-retaining roller structure disclosed in the embodiment of the present invention;
FIG. 2 is an enlarged view of the portion I in FIG. 1;
FIG. 3 is an enlarged view of section II of FIG. 1;
fig. 4 is a schematic front view of a movable roller positioning plate according to an embodiment of the present invention;
fig. 5 is a schematic side view of a movable roller positioning plate according to an embodiment of the present invention.
In the figure: 10. the axle center of the roller; 20. a spur gear; 30. a water-retaining roller sheet; 40. a movable roller positioning sheet; 50. an inner sleeve; 60. and (5) a bearing.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Example 1:
referring to fig. 1-2, the movable water-retaining roller provided in embodiment 1 includes a roller axle 10, a bearing 60 rotatably disposed at one end of the roller axle 10, a spur gear 20 fixedly disposed at the other end of the roller axle 10, and a water-retaining roller sheet 30 axially disposed on an outer ring of the roller axle 10; the outer ring of the roller axle center 10 is also axially sleeved with a movable roller positioning sheet 40 and an inner sleeve 50, and the movable roller positioning sheet 40 and the inner sleeve 50 are radially positioned between the roller axle center 10 and the water retaining roller sheet 30; the roller axis 10 is tightly matched with the movable roller positioning sheet 40, the water retaining roller sheet 30 is tightly matched with the inner sleeve 50, and the inner sleeve 50 is fixedly connected with the movable roller positioning sheet 40.
In the movable water-retaining roller in the embodiment 1, the roller axis 10 is tightly matched with the movable roller positioning piece 40, the water-retaining roller piece 30 is tightly matched with the inner sleeve 50, the inner sleeve 50 is fixedly connected with the movable roller positioning piece 40, and the rotation of the roller axis 10 drives the water-retaining roller piece 30 to synchronously rotate along with the roller axis 10, so that the sliding friction between the water-retaining roller piece 30 and the surface of a silicon wafer is effectively reduced, the silicon wafer scratching problem is improved, and the product percent of pass is increased; in addition, each part of the water retaining roller is made of a material which has good stress cracking resistance, good chemical corrosion resistance, small water flow resistance and superior physical performance and can adapt to complex processing environments, so that the weight and the sliding friction can be effectively reduced, the applicability is improved, and the maintenance cost is saved.
Example 2:
based on embodiment 1 and referring to fig. 2, in embodiment 2, the water-blocking roller sheet 30 includes a plurality of water-blocking roller sub-sheets arranged with equal length to correspond to the number of silicon wafers arranged in parallel, and the inner sides of both ends of each water-blocking roller sub-sheet are provided with a movable roller positioning sheet 40 and an inner sleeve 50, which are sleeved on the outer ring of the roller axis 10.
In the embodiment 2, the water retaining roller pieces 30 are arranged into the water retaining roller sub-pieces with multiple sections and equal lengths, and the number of the water retaining roller sub-pieces is consistent with the number of the rows of the silicon wafers arranged in parallel, so that the water retaining roller pieces 30 can be matched with the roller axis 10 more closely, and the water retaining roller sub-pieces are easier to machine and form, thereby reducing the cost.
Example 3:
based on embodiment 1 or 2 and referring to fig. 4 and 5, in embodiment 3, a first latch corresponding to the inner sleeve 50 is disposed at an axial end of the movable roller positioning plate 40, a second latch corresponding to the movable roller positioning plate 40 is disposed at an axial end of the inner sleeve 50, the movable roller positioning plate 40 and the inner sleeve 50 are engaged and connected through the first latch and the second latch, and a movable gap is formed between the first latch and the second latch along a radial direction to achieve buffering engagement.
In the embodiment 3, the inner sleeve 50 and the movable roller positioning piece 40 are arranged to be meshed and connected, so that synchronous rotation is realized and the connection mode is simplified.
Example 4:
based on embodiments 1-3, in this embodiment 4, the outer surface of the water-retaining roller sheet 30 has a silica gel layer, so that the upper and lower water-retaining rollers can be more effectively attached and rotated while the silicon wafer is driven, and the silicon wafer surface can be more effectively prevented from being scratched by elastic rolling contact with the silicon wafer, thereby improving the product yield.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to the above-described embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (5)
1. A movable water retaining roller is characterized by comprising a roller shaft center (10), a bearing (60) rotatably arranged at one end of the roller shaft center (10), a straight gear (20) fixedly arranged at the other end of the roller shaft center (10), and a water retaining roller sheet (30) axially sleeved on the outer ring of the roller shaft center (10);
the outer ring of the roller axis (10) is also axially sleeved with a movable roller positioning sheet (40) and an inner sleeve (50), and the movable roller positioning sheet (40) and the inner sleeve (50) are radially positioned between the roller axis (10) and the water blocking roller sheet (30);
the roller shaft center (10) is tightly matched with the movable roller positioning sheet (40), the water retaining roller sheet (30) is tightly matched with the inner sleeve (50), and the inner sleeve (50) is fixedly connected with the movable roller positioning sheet (40).
2. The movable water stop roller according to claim 1, wherein the water stop roller sheet (30) comprises a plurality of water stop roller sheets with equal length to correspond to the number of the silicon wafers arranged side by side, and the inner side of each end of the water stop roller sheet is provided with a movable roller positioning sheet (40) and an inner sleeve (50) which are sleeved on the outer ring of the roller shaft center (10).
3. The movable water retaining roller according to claim 1 or 2, wherein one axial end of the movable roller positioning plate (40) is provided with a first latch corresponding to the inner sleeve (50), one axial end of the inner sleeve (50) is provided with a second latch corresponding to the movable roller positioning plate (40), and the movable roller positioning plate (40) and the inner sleeve (50) are engaged and connected through the first latch and the second latch.
4. The movable water-retaining roller as claimed in claim 3, wherein a movable gap is formed between the first latch and the second latch in the radial direction.
5. The movable water-retaining roller as claimed in claim 1, wherein the outer surface of the water-retaining roller sheet (30) has a silicone layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222852626.8U CN218507056U (en) | 2022-10-27 | 2022-10-27 | Movable water retaining roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222852626.8U CN218507056U (en) | 2022-10-27 | 2022-10-27 | Movable water retaining roller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218507056U true CN218507056U (en) | 2023-02-21 |
Family
ID=85218424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222852626.8U Active CN218507056U (en) | 2022-10-27 | 2022-10-27 | Movable water retaining roller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218507056U (en) |
-
2022
- 2022-10-27 CN CN202222852626.8U patent/CN218507056U/en active Active
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