Auxiliary device for cleaning corrugated pipe at crucible shaft of single crystal furnace

Abstract

The utility model provides an auxiliary device for cleaning a corrugated pipe at a crucible shaft of a single crystal furnace. The auxiliary device for cleaning the corrugated pipe at the crucible shaft of the single crystal furnace comprises the crucible shaft, the corrugated pipe is arranged on the outer surface of the crucible shaft, clamping grooves are formed in the top and the bottom of the corrugated pipe, upper clamping blocks are inserted into the clamping grooves, and lifting rods are fixedly connected to the bottoms of a right side plate and a left side plate; a forward thread groove is formed in the surface of the ascending rod, an adjusting sleeve is in threaded connection with the surface of the ascending rod, a downward moving rod is in threaded connection with the inner surface of the adjusting sleeve, a reverse thread groove is formed in the surface of the downward moving rod, a lower clamping block is fixedly connected to the bottom of the downward moving rod, and a lower clamping column is fixedly connected to the top of the lower clamping block. And clamping cushions are arranged on the inner sides of the fixed block and the movable block. The auxiliary device for cleaning the corrugated pipe at the crucible shaft of the single crystal furnace, provided by the utility model, has the effects of improving the cleaning efficiency and being simple and easy to operate.

Description

Technical Field

[0001] The utility model relates to the technical field of single crystal furnaces, in particular to an auxiliary device for cleaning a bellows at a crucible shaft of a single crystal furnace. Background Art

[0002] A single crystal furnace is a device that uses a graphite heater to melt polycrystalline materials such as polysilicon in an inert gas environment and uses the Czochralski method to grow single crystals without dislocation. It is mainly used for the preparation of single crystal silicon rods for solar cells. At the crucible shaft of the single crystal furnace, a bellows is usually used for sealing and heat insulation. In actual use, impurities such as Si vapor enter the bellows through the gap between the crucible shaft and the single crystal furnace, adhere to the surface of the crucible shaft, and affect the normal operation of the crucible shaft. Therefore, after the single crystal furnace has been running for a period of time, the crucible shaft needs to be cleaned.

[0003] At present, when cleaning the crucible shaft, it is generally necessary to manually tie the bellows to prevent the bellows from automatically expanding and affecting the cleaning effect. This method is not only inefficient, but also has certain safety risks, because the manual binding may not be firm, causing the bellows to expand, and when cleaning the lower part of the crucible shaft, the compressed bellows cannot be fixed at any point on the crucible shaft at any time, causing the bellows to slide downward, which brings inconvenience to the cleaning of the crucible shaft.

[0004] Therefore, it is necessary to provide a bellows cleaning auxiliary device for the crucible shaft of a single crystal furnace to solve the above technical problems. Utility Model Content

[0005] The utility model provides a bellows cleaning auxiliary device for a single crystal furnace crucible shaft, which solves the problem that the bellows automatically expands due to its own elasticity and the compressed bellows slides down when cleaning the lower part of the crucible shaft.

[0006] In order to solve the above technical problems, the utility model provides a bellows cleaning auxiliary device for the crucible shaft of a single crystal furnace, comprising: a crucible shaft, a bellows is arranged on the outer surface of the crucible shaft, a card slot is opened at the top and the bottom of the bellows, an upper card block is inserted into the card slot, a card pad is fixedly connected to the bottom of the upper card block, a right side plate is fixedly connected to the top of the upper card block, a rotating shaft is rotatably connected to the right side plate, a left side plate is rotatably connected to the rotating shaft, a movable block is slidably connected to the top of the right side plate, a fixed block is fixedly connected to the top of the left side plate, and the bottom of the movable block is fixedly connected to the fixed block. The top of the right plate is provided with a guide groove, the top of the right plate is rotatably connected with a cam, the cam is fixedly connected with a shift rod, the right plate and the bottom of the left plate are fixedly connected with a rising rod, the surface of the rising rod is provided with a positive thread groove, the surface of the rising rod is threadedly connected with an adjusting sleeve, the inner surface of the adjusting sleeve is threadedly connected with a lowering rod, the surface of the lowering rod is provided with a reverse thread groove, the bottom of the lower rod is fixedly connected with a lower clamping block, the top of the lower clamping block is fixedly connected with a lower clamping column, and clamping buffer pads are provided on the inner sides of the fixed block and the movable block.

[0007] Preferably, a left connecting rod is fixedly connected to the front side of the left side plate, and a right connecting rod is fixedly connected to the front side of the right side plate.

[0008] Preferably, a connecting block is fixedly connected to the right side of the left connecting rod, a connecting groove is opened on the left side of the right connecting rod, and a connecting bolt is threadedly connected to the top of the right connecting rod.

[0009] Preferably, the left connecting rod and the right connecting rod are fixedly connected by connecting bolts.

[0010] Preferably, the guide block is adapted to the guide groove.

[0011] Preferably, the clamping pad and the clamping buffer pad are made of rubber.

[0012] Compared with the related art, the bellows cleaning auxiliary device for the crucible shaft of a single crystal furnace provided by the utility model has the following beneficial effects:

[0013] The device can eliminate the need for manual binding of the bellows, greatly improving the cleaning efficiency, avoiding the possible instability of manual binding, reducing the risk of automatic expansion of the bellows, and improving the safety of operation. The compressed bellows can be fixed at any point on the crucible shaft at any time, making it convenient to clean the crucible shaft, achieving precise positioning and fixation, and the bellows sleeve will not slide down when cleaning the lower part of the crucible shaft, thereby improving the cleaning efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1A schematic structural diagram of a preferred embodiment of the bellows cleaning auxiliary device for the crucible shaft of a single crystal furnace provided by the utility model;

[0015] Figure 2 for Figure 1 A cross-sectional schematic diagram of the cleaning auxiliary device shown being installed on the bellows;

[0016] Figure 3 for Figure 2 An enlarged schematic diagram of part A is shown;

[0017] Figure 4 for Figure 2 An enlarged schematic diagram of part B is shown.

[0018] Numbers in the figure: 1, crucible shaft, 2, bellows, 3, slot, 4, upper clamping block, 5, clamping pad, 6, right side plate, 7, rotating shaft, 8, left side plate, 9, movable block, 10, fixed block, 11, guide block, 12, guide groove, 13, cam, 14, lever, 15, rising rod, 16, forward thread groove, 17, adjusting sleeve, 18, lower moving rod, 19, reverse thread groove, 20, lower clamping block, 21, lower clamping column, 22, clamping buffer pad, 23, left connecting rod, 24, right connecting rod, 25, connecting block, 26, connecting groove, 27, connecting bolt. DETAILED DESCRIPTION

[0019] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0020] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 ,in, Figure 1 A schematic structural diagram of a preferred embodiment of the bellows cleaning auxiliary device for the crucible shaft of a single crystal furnace provided by the utility model; Figure 2 for Figure 1 A cross-sectional schematic diagram of the cleaning auxiliary device shown being installed on the bellows; Figure 3 for Figure 2 An enlarged schematic diagram of part A is shown; Figure 4 for Figure 2The enlarged schematic diagram of part B is shown. The bellows cleaning auxiliary device for the crucible shaft of a single crystal furnace comprises: a crucible shaft 1, a bellows 2 is arranged on the outer surface of the crucible shaft 1, a card slot 3 is provided at the top and bottom of the bellows 2, an upper card block 4 is inserted inside the card slot 3, a card pad 5 is fixedly connected to the bottom of the upper card block 4, a right side plate 6 is fixedly connected to the top of the upper card block 4, a rotating shaft 7 is rotatably connected to the right side plate 6, a left side plate 8 is rotatably connected to the rotating shaft 7, a movable block 9 is slidably connected to the top of the right side plate 6, a fixed block 10 is fixedly connected to the top of the left side plate 8, a guide block 11 is fixedly connected to the bottom of the movable block 9, a guide groove 12 is provided at the top of the right side plate 6, and a cam 1 is rotatably connected to the top of the right side plate 6. 3. A lever 14 is fixedly connected to the cam 13, a rising rod 15 is fixedly connected to the bottom of the right side plate 6 and the left side plate 8, a positive thread groove 16 is provided on the surface of the rising rod 15, an adjusting sleeve 17 is threadedly connected to the surface of the rising rod 15, a downward rod 18 is threadedly connected to the inner surface of the adjusting sleeve 17, a reverse thread groove 19 is provided on the surface of the downward rod 18, a lower clamping block 20 is fixedly connected to the bottom of the downward rod 18, a lower clamping column 21 is fixedly connected to the top of the lower clamping block 20, and a clamping buffer pad 22 is provided on the inner side of the fixed block 10 and the movable block 9. The device saves the tedious process of manual binding, reduces manpower requirements, reduces labor intensity, and makes operation easier and more efficient.

[0021] The left side plate 8 is fixedly connected with a left connecting rod 23 at the front side, and the right side plate 6 is fixedly connected with a right connecting rod 24 at the front side. The left connecting rod 23 and the right connecting rod 24 serve to connect the left side plate 8 and the right side plate 6 together.

[0022] The left connecting rod 23 is fixedly connected with a connecting block 25 on the right side, the right connecting rod 24 is provided with a connecting groove 26 on the left side, the top of the right connecting rod 24 is threadedly connected with a connecting bolt 27, and the connecting bolt 27 passes through the connecting groove 26 and the connecting block 25 to connect the left connecting rod 23 and the right connecting rod 24.

[0023] The left connecting rod 23 and the right connecting rod 24 are fixedly connected by a connecting bolt 27 . After being fixedly connected, the cam 13 is convenient to use and can be clamped on the crucible shaft 1 more conveniently.

[0024] The guide block 11 is matched with the guide groove 12 so that the moving block 9 can move in a preset direction when clamping the crucible shaft 1 .

[0025] The clamping pad 5 and the clamping buffer pad 22 are made of rubber. The rubber is elastic and can protect the crucible shaft 1 and the bellows 2 .

[0026] The working principle of the bellows cleaning auxiliary device for the crucible shaft of a single crystal furnace provided by the utility model is as follows:

[0027] When the crucible shaft 1 needs to be cleaned, the bellows 2 is compressed, the upper clamping block 4 is inserted into the clamping groove 3 on the upper part of the bellows 2, and the adjusting sleeve 17 is rotated. Since the threaded grooves on the surfaces of the rising rod 15 and the lower moving rod 18 are in opposite directions, the rising rod 15 and the lower moving rod 18 are contracted, driving the lower clamping block 20 to rise, and then driving the lower clamping column 21 to be inserted into the lower clamping groove 3, the lever 14 is moved, and the cam 13 is driven to rotate. The protruding part of the cam 13 is in a flat state and will not slip. The cam 13 squeezes the movable block 9, so that the device drives the bellows 2 to be tightly clamped on the crucible shaft 1, and the lever 13 can be moved to slide, which is convenient and simple to operate.

[0028] Compared with the related art, the bellows cleaning auxiliary device for the crucible shaft of a single crystal furnace provided by the utility model has the following beneficial effects:

[0029] The device can eliminate the need for manual binding of the bellows 2, greatly improving the cleaning efficiency, avoiding the possible instability caused by manual binding, reducing the risk of the bellows 2 automatically unfolding, and improving the safety of operation. The compressed bellows 2 can be fixed at any point of the crucible shaft 1 at any time, making it convenient to clean the crucible shaft 1, achieving precise positioning and fixation, and the bellows sleeve will not slide down when cleaning the lower part of the crucible shaft 1, thereby improving the cleaning efficiency.

[0030] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A bellows cleaning auxiliary device for a single crystal furnace crucible shaft, characterized in that: include: The crucible shaft, the outer surface of the crucible shaft is provided with a bellows, the top and bottom of the bellows are provided with a slot, the upper clamping block is inserted in the clamping slot, the bottom of the upper clamping block is fixedly connected with a clamping pad, the top of the upper clamping block is fixedly connected with a right plate, the right plate is rotatably connected with a rotating shaft, the rotating shaft is rotatably connected with a left plate, the top of the right plate is slidably connected with a movable block, the top of the left plate is fixedly connected with a fixed block, the bottom of the movable block is fixedly connected with a guide block, the top of the right plate is provided with a guide groove, the top of the right plate is rotatably connected with a cam, the cam is fixedly connected with a lever, the right plate and the bottom of the left plate are fixedly connected with a rising rod, the surface of the rising rod is provided with a positive thread groove, the surface of the rising rod is threadedly connected with an adjusting sleeve, the inner surface of the adjusting sleeve is threadedly connected with a lower moving rod, the surface of the lower moving rod is provided with a reverse thread groove, the bottom of the lower moving rod is fixedly connected with a lower clamping block, the top of the lower clamping block is fixedly connected with a lower clamping column, and the inner sides of the fixed block and the movable block are provided with a clamping buffer pad.

2. The bellows cleaning auxiliary device for the crucible shaft of a single crystal furnace according to claim 1, characterized in that: The left side plate is fixedly connected with a left connecting rod on the front side, and the right side plate is fixedly connected with a right connecting rod on the front side.

3. The bellows cleaning auxiliary device for the crucible shaft of a single crystal furnace according to claim 2, characterized in that: A connecting block is fixedly connected to the right side of the left connecting rod, a connecting groove is opened on the left side of the right connecting rod, and a connecting bolt is threadedly connected to the top of the right connecting rod.

4. The bellows cleaning auxiliary device for the crucible shaft of a single crystal furnace according to claim 2, characterized in that: The left connecting rod and the right connecting rod are fixedly connected by connecting bolts.

5. The bellows cleaning auxiliary device for the crucible shaft of a single crystal furnace according to claim 1, characterized in that: The guide block is matched with the guide groove.

6. The bellows cleaning auxiliary device for the crucible shaft of a single crystal furnace according to claim 1, characterized in that: The clamping pad and the clamping buffer pad are made of rubber.

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