Device for assisting in replacing soft felt of thermal insulation cylinder of single crystal furnace

Abstract

The utility model discloses a device for assisting in replacing a soft felt of a thermal insulation cylinder of a single crystal furnace. The device comprises a rotating device and a stripping device connected with the rotating device, the rotating device is used for rotating the heat preservation barrel in the rotating direction, and soft felt is wound around the heat preservation barrel. The stripping device is used for stripping the soft felt on the heat preservation cylinder. According to the utility model, the outer-layer soft felt can be prevented from being replaced along with the inner-layer soft felt when the pulverization degree is relatively low, namely the outer-layer soft felt is reused, so that the cost of a thermal field is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaics, and more specifically, to a device for assisting in replacing the soft felt of a heat preservation cylinder of a single crystal furnace. Background Art

[0002] As a basic material for photovoltaic power generation, single crystal silicon wafers have a wide market demand. The Czochralski single crystal growth method is a common single crystal growth method. In its growth process, in a single crystal furnace, a seed crystal is immersed in a silicon melt, and processes such as seeding, shoulder formation, shoulder rotation, equal diameter, and ending are successively carried out, and finally a single crystal rod is obtained. During the pulling process of the single crystal rod, the thermal field structure in the single crystal furnace plays a crucial role in providing the temperature gradient required for crystal growth.

[0003] The prior art adjustments to the thermal field structure of the single crystal furnace are all aimed at reducing heat loss, that is, heat preservation components are arranged on the periphery of the crucible and heater of the single crystal furnace. Generally, the heat preservation components and the components inside them are collectively referred to as the thermal field. In order to enhance the heat preservation effect of the thermal field of the single crystal furnace, in the related art, only an annular heat preservation felt is arranged on the outer side of the heat preservation cylinder to enhance the heat preservation of the heat preservation cylinder. Summary of the Utility Model

[0004] In view of this, the utility model provides a device for assisting in replacing the soft felt of a heat preservation cylinder of a single crystal furnace, including a rotating device and a peeling device connected to the rotating device;

[0005] The rotating device is used to rotate the heat preservation cylinder along the rotation direction, and a soft felt is wound around the heat preservation cylinder;

[0006] The peeling device is used to peel the soft felt from the heat preservation cylinder.

[0007] Optionally, the rotating device includes a carrier and a connecting member;

[0008] The carrier includes carrier platforms arranged in sequence along the circumferential direction. Adjacent carrier platforms are connected by a first connecting rod. Each carrier platform includes a fixing part, and a first rotating shaft is arranged at the vertex angle between at least two fixing parts. The first rotating shaft is used to rotate the fixing part along the rotation direction;

[0009] A bearing part is arranged on the side of the fixing part away from the first rotating shaft, and the bearing part is used to bear the soft felt.

[0010] Optionally, a limiting part is arranged on the side of the fixing part close to the bearing part, and the limiting part is used to limit the soft felt.

[0011] Optionally, the bearing part includes a bearing rod and a second connecting rod connected to the bearing rod. The second connecting rod is located on the side of the bearing rod close to the fixing part.

[0012] Optionally, along the direction of the bearing part pointing to the side of the fixing part, the cross-sectional shape of the bearing rod and / or the limiting part is arc-shaped, and the bearing rod and / or the limiting part protrude towards the side away from the fixing part.

[0013] Optionally, the connecting member includes a frame, and the bearing member is disposed within the frame;

[0014] The frame is connected to the second rotating shaft through a third connecting rod, the extending direction of the third connecting rod intersects with the extending direction of the second rotating shaft, and the second rotating shaft is used to rotate and wind the unfragmented soft felt along the rotating direction.

[0015] Optionally, the peeling device includes a clamping table connected to the connecting member, and the extending direction of the clamping table intersects with the extending direction of the second rotating shaft;

[0016] A peeling member for peeling the soft felt is disposed on the clamping table, the peeling member includes a driving member and a pressing rod connected to the driving member, the driving member is used to drive the pressing rod to reciprocate along the length direction of the clamping table, and the pressing rod is used to press the unfragmented soft felt.

[0017] Optionally, a guiding hole is formed in the clamping table, the guiding hole penetrates through the clamping table along the thickness direction of the clamping table, and the guiding hole extends along the length direction of the clamping table;

[0018] The driving member includes a hydraulic cylinder and a hydraulic rod connected to the hydraulic cylinder;

[0019] The pressing rod includes a first rod portion, the first rod portion is connected to a third rod portion through a second rod portion, the third rod portion is located on the side of the second rod portion close to the hydraulic cylinder, and the first rod portion is connected to the hydraulic rod;

[0020] A part of the first rod portion passes through the guiding hole, the hydraulic cylinder drives the hydraulic rod to reciprocate along the length direction of the guiding hole, and the hydraulic rod drives the first rod portion to reciprocate along the length direction of the clamping table.

[0021] Optionally, the extending directions of the second rod portion and the hydraulic rod are the same as the extending direction of the clamping table, the extending direction of the first rod portion is the same as the extending direction of the third rod portion, and along the thickness direction of the clamping table, the length of the first rod portion is less than the length of the third rod portion;

[0022] The extending direction of the first rod portion intersects with the extending direction of the second rod portion.

[0023] Optionally, an approximate T-shaped structure is formed between the first rod portion and the second rod portion, and an inverted L-shaped structure is formed between the second rod portion and the third rod portion.

[0024] Compared with the prior art, the device for assisting in replacing the soft felt of the single crystal furnace heat preservation cylinder provided by the present utility model at least achieves the following beneficial effects:

[0025] The device for assisting in replacing the soft felt of the single crystal furnace heat preservation cylinder provided by the present utility model includes a rotating device and a peeling device connected to the rotating device; the rotating device is used to rotate the heat preservation cylinder along the rotation direction, and the soft felt is wound on the heat preservation cylinder; the peeling device is used to peel the soft felt on the heat preservation cylinder. With the above scheme, it can be avoided that when the outer soft felt has a low degree of pulverization, it is replaced simultaneously with the inner soft felt, that is, the outer soft felt is reused, thereby reducing the cost of the thermal field. It can be understood that it is convenient to separately collect the soft felt with a lighter degree of pulverization on the outside, without replacing and discarding it together with the inner soft felt, and greatly reducing the cost of the thermal field.

[0026] Of course, it is not necessary for any product implementing the present utility model to simultaneously achieve all the above-mentioned technical effects.

[0027] Through the following detailed description of the exemplary embodiments of the present utility model with reference to the accompanying drawings, other features and advantages of the present utility model will become clear. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The drawings incorporated in the specification and constituting a part of the specification illustrate embodiments of the present utility model and, together with the description, are used to explain the principles of the present utility model.

[0029] Figure 1 is a schematic structural diagram of the device for assisting in replacing the soft felt of the single crystal furnace heat preservation cylinder provided by the present utility model;

[0030] Figure 2 is a top view of the heat preservation cylinder wound with soft felt provided by the present utility model;

[0031] Figure 3 is a diagram of a state of replacing the soft felt of the device for assisting in replacing the soft felt of the single crystal furnace heat preservation cylinder provided by the present utility model;

[0032] Figure 4 is another diagram of a state of replacing the soft felt of the device for assisting in replacing the soft felt of the single crystal furnace heat preservation cylinder provided by the present utility model;

[0033] Figure 5 is a schematic structural diagram of the rotating device provided by the present utility model;

[0034] Figure 6 is a schematic structural diagram of one direction of the peeling device provided by the present utility model;

[0035] Figure 7 It is a schematic structural diagram of another direction of the peeling device provided by the present utility model. Specific embodiments

[0036] Now, various exemplary embodiments of the present utility model will be described in detail with reference to the accompanying drawings. It should be noted that: unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present utility model.

[0037] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way a limitation on the present utility model or its application or use.

[0038] Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and devices should be regarded as part of the specification.

[0039] In all the examples shown and discussed here, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values.

[0040] It should be noted that: like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0041] Generally, the thermal insulation felt used in a single crystal furnace is a soft carbon felt. After long-term use, due to the relatively high temperature inside the contact layer, the pulverization of the inner soft felt is relatively serious. However, the temperature contacted by the outer soft felt is relatively low, resulting in a relatively low degree of pulverization of the outer soft felt, and good thermal insulation performance. It still has a certain value in use. However, when replacing, the outer soft felt with a relatively low degree of pulverization cannot be collected separately and has to be replaced and discarded together with the inner soft felt, causing a large amount of waste of the soft felt.

[0042] Based on the above technical problems, the present application provides a device for assisting in replacing the soft felt of the thermal insulation cylinder of a single crystal furnace.

[0043] Refer to Figures 1-4 as shown Figure 1 It is a schematic structural diagram of the device for assisting in replacing the soft felt of the thermal insulation cylinder of a single crystal furnace provided by the present utility model; Figure 2 It is a top view of the thermal insulation cylinder wrapped with soft felt provided by the present utility model; Figure 3 It is a diagram of a state of replacing the soft felt of the device for assisting in replacing the soft felt of the thermal insulation cylinder of a single crystal furnace provided by the present utility model; Figure 4It is another state diagram of the device for assisting in replacing the soft felt of the thermal insulation cylinder of a single crystal furnace provided by the present utility model; this embodiment provides a device for assisting in replacing the soft felt of the thermal insulation cylinder of a single crystal furnace, including a rotating device 1 and a peeling device 2 connected to the rotating device 1; the rotating device 1 is used to rotate the thermal insulation cylinder 3 in the rotating direction, and a soft felt 4 is wound around the thermal insulation cylinder 3; the peeling device 2 is used to peel the soft felt 4 from the thermal insulation cylinder 3.

[0044] Specifically, continuing to refer to Figure 1 As shown, the device for assisting in replacing the soft felt of the thermal insulation cylinder of a single crystal furnace includes a rotating device 1 and a peeling device 2. The rotating device 1 and the peeling device 2 can be fixedly connected. When the rotating device 1 rotates clockwise or counterclockwise, the peeling device 2 can also rotate clockwise or counterclockwise. The thermal insulation cylinder 3 can be placed on the rotating device 1, and a soft felt 4 is wound around the thermal insulation cylinder 3. The soft felt 4 can be a thermal insulation felt, and the material of the thermal insulation felt can be graphite felt. The soft felt 4 can be in a ring structure.

[0045] Combined with Figure 1 and Figure 4 As shown, the soft felt 4 includes a powdered soft felt 41 and an unpowdered soft felt 42. The powdered soft felt 41 can be located between the thermal insulation cylinder 3 and the unpowdered soft felt 42. It can be understood that: the powdered soft felt 41 can be the inner soft felt, and the number of layers of the inner soft felt can be several layers. The unpowdered soft felt 42 can be the outer soft felt, and the number of layers of the outer soft felt can also be several layers. The thermal insulation cylinder 3 can be a hollow circular thermal insulation cylinder 3. The peeling device 2 can peel the soft felt 4 from the thermal insulation cylinder 3, such as the peeling device 2 can peel the unpowdered soft felt 42 from the thermal insulation cylinder 3.

[0046] The application scenario is as follows:

[0047] Combined with Figure 3 and Figure 4 As shown, there are two thermal insulation cylinders 3, such as the No. 1 thermal insulation cylinder 31 and the No. 2 thermal insulation cylinder 32. The No. 1 thermal insulation cylinder 31 is a used thermal insulation cylinder 3, and an inner soft felt A and an outer soft felt B are wound around the No. 1 thermal insulation cylinder 31. Among them, the inner soft felt A is the powdered soft felt 41, and the outer soft felt B is the unpowdered soft felt 42. The No. 2 thermal insulation cylinder 32 can be an empty thermal insulation cylinder 3, or a thermal insulation cylinder 3 wound with a new soft felt C (unpowdered soft felt). This embodiment does not make a limitation on this.

[0048] Place the No. 1 heat preservation cylinder 31 and the No. 2 heat preservation cylinder 32 on the rotating device 1 and the peeling device 2 respectively. For example, place the No. 1 heat preservation cylinder 31 on the rotating device 1 and the No. 2 heat preservation cylinder 32 on the peeling device 2. Of course, the positions of the No. 1 heat preservation cylinder 31 and the No. 2 heat preservation cylinder 32 can also be swapped according to the actual situation. This embodiment does not make specific limitations. This application only takes the example of placing the No. 1 heat preservation cylinder 31 on the rotating device 1 and the No. 2 heat preservation cylinder 32 on the peeling device 2, which is specifically as follows:

[0049] Combined with Figure 1 and Figure 3 As shown, place the No. 1 heat preservation cylinder 31 on the rotating device 1 and rotate it. After removing one end of the outer soft felt B on the No. 1 heat preservation cylinder 31, pull it to the innermost layer of the No. 2 heat preservation cylinder 32, and use the peeling device 2 to wind the remaining outer soft felt B of the No. 1 heat preservation cylinder 31 around the No. 2 heat preservation cylinder 32. Since the outer soft felt B is the non-pulverized soft felt 42, that is, the non-pulverized soft felt 42 is used as the inner soft felt B in the No. 2 heat preservation cylinder 32 and continues to be used. After all the required outer soft felt B is peeled off, cut it off, and remove the remaining inner soft felt A (pulverized soft felt 41) together with the heat preservation cylinder 3, discard the inner soft felt A (pulverized soft felt 41), and reuse the heat preservation cylinder after ash cleaning. Subsequently, a new soft felt C can be wound around the outer layer of the No. 2 heat preservation cylinder 32, and the outer soft felt B can be reused, thereby reducing the cost of the thermal field.

[0050] Combined with Figure 1 and Figure 4 As shown, place the No. 1 heat preservation cylinder 31 on the rotating device 1 and rotate it. First, wind a new non-pulverized soft felt C around the outside of the No. 2 heat preservation cylinder 32. Secondly, wind the outer soft felt B led out from the No. 1 heat preservation cylinder 31 around the outside of the new non-pulverized soft felt C of the No. 2 heat preservation cylinder 32, and use the peeling device 2 to wind the remaining outer soft felt B of the No. 1 heat preservation cylinder 31 around the No. 2 heat preservation cylinder 32. Since the outer soft felt B is the non-pulverized soft felt 42, that is, the non-pulverized soft felt 42 is used as the outer soft felt B in the No. 2 heat preservation cylinder 32 and continues to be used. After all the required outer soft felt B is peeled off, cut it off, and remove the remaining inner soft felt A (pulverized soft felt 41) together with the heat preservation cylinder 3, discard the inner soft felt A (pulverized soft felt 41), and reuse the heat preservation cylinder after ash cleaning. The outer soft felt B can also be reused, thereby reducing the cost of the thermal field.

[0051] Compared with the prior art, the device for assisting in replacing the soft felt of the single crystal furnace heat preservation cylinder provided in this embodiment at least achieves the following beneficial effects:

[0052] The device for assisting in replacing the soft felt of the single crystal furnace heat preservation cylinder provided by this embodiment includes a rotating device 1 and a peeling device 2 connected to the rotating device 1; the rotating device 1 is used to rotate the heat preservation cylinder 3 in the rotating direction, and a soft felt 4 is wound around the heat preservation cylinder 3; the peeling device 2 is used to peel the soft felt 4 from the heat preservation cylinder 3. With the above solution, it can be avoided that when the outer soft felt has a relatively low degree of pulverization, it is replaced simultaneously with the inner soft felt, that is, the outer soft felt is reused, thereby reducing the cost of the thermal field. It can be understood that it is convenient to separately collect the soft felt with a relatively light degree of pulverization on the outside, without replacing and discarding it together with the inner soft felt, greatly reducing the cost of the thermal field.

[0053] In an alternative embodiment, referring to Figure 1 and Figure 5 as shown, Figure 5 is a schematic structural diagram of the rotating device provided by the present utility model; in this embodiment, the rotating device 1 includes a carrier 11 and a connecting member 12; the carrier 11 includes a carrier platform 110 arranged in sequence along the circumferential direction, and adjacent carrier platforms 110 are connected by a first connecting rod 13. Each carrier platform 110 includes a fixing part 1101, and a first rotating shaft 14 is arranged at the vertex angle between at least two fixing parts 1101. The first rotating shaft 14 is used to rotate the fixing part 1101 in the rotating direction; a carrier part 1102 is arranged on the side of the fixing part 1101 away from the first rotating shaft 14, and the carrier part 1102 is used to carry the soft felt 4.

[0054] Specifically, in combination with Figure 1 、 Figure 3 and Figure 5 as shown, the rotating device 1 includes a carrier 11 and a connecting member 12. The carrier 11 is used to carry the No. 1 heat preservation cylinder 31 wound with the soft felt 4, and the connecting member 12 is used to connect the peeling device 2.

[0055] The carrier 11 includes carrier platforms 110 arranged in sequence along the circumferential direction. The number of carrier platforms 110 can be 2, and each carrier platform 110 can be semi-circular. The number of carrier platforms 110 can also be 3, and the 3 carrier platforms 110 can be arranged in sequence along the circumferential direction, and each carrier platform 110 can be one-third circular. The number of carrier platforms 110 can also be 4, and the 4 carrier platforms 110 can be arranged in sequence along the circumferential direction, and each carrier platform 110 can be one-fourth circular. Of course, the number of carrier platforms 110 can be increased or decreased according to the actual situation, and this embodiment does not make specific limitations in this regard. This embodiment only takes the number of carrier platforms 110 being 4 as an example for illustration. Each carrier platform 110 can be arranged in sequence along the circumferential direction, and adjacent carrier platforms 110 can be connected by a first connecting rod 13. The first connecting rod 13 is used to connect adjacent carrier platforms 110. The shape of the first connecting rod 13 can be rectangular, fan-shaped, circular, or triangular. The shape of the first connecting rod 13 can be designed according to the actual situation as long as it can connect adjacent carrier platforms 110 together. This embodiment does not make specific limitations in this regard. This embodiment only takes the first connecting rod 13 being rectangular as an example for illustration.

[0056] Continue to refer to Figure 5 As shown, each carrier platform 110 includes a fixing part 1101. The shape of each fixing part 1101 can be fan-shaped. There can be a spacing between adjacent fixing parts 1101. Each fixing part 1101 can have a vertex angle α (central angle). The fixing parts 1101 in each carrier platform 110 can be fixedly connected by a first connecting rod 13. The first rotating shaft 14 is located at the vertex angle α between multiple fixing parts 1101, and the vertex angle α between multiple fixing parts 1101 is fixedly connected to the first rotating shaft 14. The first rotating shaft 14 is used to rotate the fixing part 1101 along the rotation direction. When the first rotating shaft 14 rotates along the rotation direction (clockwise or counterclockwise), it drives each fixing part 1101 to rotate, thereby driving each carrier platform 110 to rotate along the rotation direction. A carrying part 1102 is arranged on the side of the fixing part 1101 away from the first rotating shaft 14. For example, the carrying part 1102 is arranged on the outermost side of the fixing part 1101. The carrying part 1102 is used to carry the No. 1 heat preservation cylinder 31 wound with the soft felt 4. The adjacent fixing parts 1101, the carrying part 1102, the first connecting rod 13 and the first rotating shaft 14 can form a rotating platform, so that a rotating platform is formed between adjacent carrier platforms 110, the first connecting rod 13 and the first rotating shaft 14. The heat preservation cylinder 3 (such as the No. 1 heat preservation cylinder 31 wound with the soft felt 4) placed on the rotating device 1 is rotated through this rotating platform.

[0057] In an alternative embodiment, in combination with Figure 1 、 Figure 3 and Figure 5As shown, a limiting portion 1103 is provided on one side of the fixing portion 1101 close to the bearing portion 1102. The limiting portion 1103 is used to limit the soft felt 4. The No. 1 heat preservation cylinder 31 wound with the soft felt 4 is adjacent to the limiting portion 1103, while the soft felt 4 is on the side away from the limiting portion 1103. The No. 1 heat preservation cylinder 31 wound with the soft felt 4 is limited by the limiting portion 1103 to prevent the heat preservation cylinder 3 (the No. 1 heat preservation cylinder 31 wound with the soft felt 4) wound with the soft felt 4 from shifting towards the fixing portion 1101 when the heat preservation cylinder 3 rotates.

[0058] In an alternative embodiment, in combination with Figure 1 and Figure 5 As shown, the bearing portion 1102 includes a bearing rod 1102a and a second connecting rod 1102b connected to the bearing rod 1102a. The second connecting rod 1102b is located on the side of the bearing rod 1102a close to the fixing portion 1101. Specifically, the bearing portion 1102 includes a bearing rod 1102a and a second connecting rod 1102b. The bearing rod 1102a and the second connecting rod 1102b may be fixedly connected. One end of the second connecting rod 1102b is connected to the fixing portion 1101, and the other end is connected to the bearing rod 1102a. The second connecting rod 1102b is located on the side of the bearing rod 1102a away from the fixing portion 1101. The second connecting rod 1102b and the bearing rod 1102a form an approximate T shape. Through the mutual cooperation between the bearing rod 1102a and the second connecting rod 1102b, the No. 1 heat preservation cylinder 31 wound with the soft felt 4 is placed on the bearing portion 1102, which is beneficial to separating the powdered soft felt 41 and the non-powdered soft felt 42 in the subsequent process. The overall structure of the bearing rod 1102a and the second connecting rod 1102b is simple, and the manufacturing difficulty can also be reduced.

[0059] In an alternative embodiment, in combination with Figure 1 and Figure 5As shown, along the direction from the bearing part 1102 towards the fixing part 1101, the cross-sectional shape of the bearing rod 1102a and / or the limiting part 1103 is arc-shaped, and the bearing rod 1102a and / or the limiting part 1103 protrude towards the side away from the fixing part 1101. Specifically, since the shape of the heat preservation cylinder 3 can be an annular structure, along the direction from the bearing part 1102 towards the fixing part 1101, the cross-sectional shape of the limiting part 1103 is arc-shaped, and the limiting part 1103 protrudes towards the side away from the fixing part 1101, which is beneficial for the inner surface of the heat preservation cylinder 3 to closely fit on the outer surface of the limiting part 1103 to limit the heat preservation cylinder 3 wrapped with the soft felt 4. Since the soft felt 4 is an annular structure, along the direction from the bearing part 1102 towards the fixing part 1101, the cross-sectional shape of the bearing rod 1102a is arc-shaped, and the bearing rod 1102a protrudes towards the side away from the fixing part 1101, and the soft felt 4 can directly contact the bearing rod 1102a. Since the soft felt 4 directly wraps the heat preservation cylinder 3, it is beneficial for carrying the heat preservation cylinder 3 wrapped with the soft felt 4. Since both the heat preservation cylinder 3 and the soft felt 4 are annular structures, along the direction from the bearing part 1102 towards the fixing part 1101, making the cross-sectional shapes of the bearing rod 1102a and the limiting part 1103 arc-shaped is not only beneficial for limiting the heat preservation cylinder 3 wrapped with the soft felt 4, but also beneficial for carrying the heat preservation cylinder 3 wrapped with the soft felt 4.

[0060] In an alternative embodiment, the connecting member 12 includes a frame 121, and the bearing member 11 is disposed around the frame 121; the frame 121 is connected to the second rotating shaft 21 through a third connecting rod 122, the extending direction of the third connecting rod 122 intersects with the extending direction of the second rotating shaft 21, and the second rotating shaft 21 is used to rotate along the rotating direction and wind the non-pulverized soft felt 4.

[0061] Specifically, in combination with Figure 1 、 Figure 3 and Figure 5 As shown, the connecting member 12 includes a frame 121, and the shape of the frame 121 can be a square shape. Subsequently, the bearing member 11 can be placed inside the frame 121, and the frame 121 can play a role in limiting the bearing member 11 to prevent deviation when the rotating platform rotates.

[0062] The frame 121 is fixedly connected to the second rotating shaft 21 through a third connecting rod 122. One end of the third connecting rod 122 is connected to the frame 121, and the other end is connected to the second rotating shaft 21. The third connecting rod 122 can be a bar-shaped connecting structure, and the length of the third connecting rod 122 can be adjusted according to actual situations, and no specific limitation is made in this embodiment. The extending direction of the third connecting rod 122 intersects with the extending direction of the second rotating shaft 21. Optionally, the extending direction of the third connecting rod 122 is perpendicular to the extending direction of the second rotating shaft 21. The No. 2 heat preservation cylinder 32 can be sleeved on the outer surface of the second rotating shaft 21. The second rotating shaft 21 is used to rotate along the rotation direction and wind the unfragmented soft felt 42. One end of the unfragmented soft felt 42 wound in the No. 1 heat preservation cylinder 31 is pulled to the innermost side of the No. 2 heat preservation cylinder 32. When the second rotating shaft 21 rotates along the rotation direction, the No. 2 heat preservation cylinder 32 drives the No. 1 heat preservation cylinder 31 to rotate through the unfragmented soft felt 42, and the unfragmented soft felt 42 is wound on the No. 2 heat preservation cylinder 32, with simple operation, convenience and rapidity.

[0063] During specific use, a first groove (not shown in the figure) and a second groove (not shown in the figure) can be opened on the surface of the object. The shapes of the first groove and the second groove can be such that the shapes of the first rotating shaft 14 and the second rotating shaft match each other. Among them, the depth of the first groove can be consistent with the length of the first rotating shaft 14. The frame 121 is placed on the surface of the object. When the rotating platform rotates, the carrier 11 rotates within the frame 121 to prevent the carrier 11 from exceeding the range of the frame 121. The above-mentioned object surface can be the ground or other bearing surfaces, as long as a first groove can be opened on its surface to rotate the rotating platform, and no specific limitation is made in this regard.

[0064] Place the bottom of the second rotating shaft 21 in the second groove. The shape of the second groove can be annular. For example, the No. 2 heat preservation cylinder 32 is sleeved on the second rotating shaft 21, and a No. 1 heat preservation cylinder 1 is installed on the No. 1 heat preservation cylinder 31. Since the unfragmented soft felt is connected between the No. 1 heat preservation cylinder 31 and the No. 2 heat preservation cylinder 32, the unfragmented soft felt is similar to the chain of a bicycle. When driving the No. 2 heat preservation cylinder 32, the No. 1 heat preservation cylinder 31 is driven to rotate along the rotation direction through the unfragmented soft felt, and the unfragmented soft felt can be wound on the No. 2 heat preservation cylinder 32.

[0065] It should be noted that: the depth of the first groove is greater than the depth of the second groove. Subsequently, the surface of the carrier 11 needs to be in the same plane as the side of the second rotating shaft 21 close to the second groove.

[0066] In an alternative embodiment, in combination with Figure 1 、 Figure 6 and Figure 7 as shown, Figure 6 is a schematic structural diagram of one direction of the peeling device provided by the present utility model; Figure 7This is a schematic structural diagram of another direction of the peeling device provided by the present utility model. In this embodiment, the peeling device 2 includes a clamping table 22 connected to a connecting member 12, and the extending direction of the clamping table 22 intersects with the extending direction of the second rotating shaft 21; a peeling member 23 for peeling the soft felt 4 is provided on the clamping table 22. The peeling member 23 includes a driving member 231 and a pressing rod 232 connected to the driving member 231. The driving member 231 is used to drive the pressing rod 232 to reciprocate along the length direction of the clamping table 22, and the pressing rod 232 is used to press the un-pulverized soft felt 4.

[0067] Specifically, the peeling device 2 includes a clamping table 22. The clamping table 22 is connected to the connecting member 12 through a second rotating shaft 21, and the extending direction of the clamping table 22 intersects with the extending direction of the second rotating shaft 21. Optionally, the extending direction of the clamping table 22 is perpendicular to the extending direction of the second rotating shaft 21, and the extending direction of the clamping table 22 can also be perpendicular to the extending direction of the third connecting rod 122. A peeling member 23 is provided on the clamping table 22. The peeling member 23 is used to peel the un-pulverized soft felt 42 in the No. 1 heat preservation cylinder 31 and compact the un-pulverized soft felt 42 wound in the No. 2 heat preservation cylinder 32, so as to prevent the un-pulverized soft felt 42 between different layers wound in the No. 2 heat preservation cylinder 32 from being in a fluffy state.

[0068] The peeling member 23 includes a driving member 231 and a pressing rod 232. The driving member 231 and the pressing rod 232 can be fixedly connected. The driving member 231 can drive the pressing rod 232 to reciprocate along the length extending direction of the clamping table 22. The distance between the pressing rod 232 and the outermost un-pulverized soft felt 42 wound in the No. 2 heat preservation cylinder 32 is adjusted according to the number of layers of the un-pulverized soft felt 42 wound in the No. 2 heat preservation cylinder 32, which is beneficial to compact the un-pulverized soft felt 42 wound in the No. 2 heat preservation cylinder 32.

[0069] During specific use, in combination with Figure 1 、 Figure 3 and Figure 6 as shown, the No. 2 heat preservation cylinder 32 is sleeved on the second rotating shaft 21, one end of the un-pulverized soft felt 42 wound on the No. 1 heat preservation cylinder 31 is pulled to the No. 2 heat preservation cylinder 32. When the No. 1 heat preservation cylinder 31 rotates clockwise along the bearing member 11, the peeling device 2 rotates clockwise along the bearing member 11 through the connecting member 12, and the un-pulverized soft felt 42 on the No. 1 heat preservation cylinder 31 is wound on the No. 2 heat preservation cylinder 32. After all the un-pulverized soft felt 42 to be retained on the No. 1 heat preservation cylinder 31 is peeled off, it is cut off, and the remaining pulverized soft felt 41 together with the heat preservation cylinder 3 is removed, and the pulverized soft felt 41 is discarded. After the heat preservation cylinder is cleaned of ash, it can be reused. Subsequently, a new soft felt can be wound on the outer layer of the No. 2 heat preservation cylinder 32. Therefore, the un-pulverized soft felt 42 on the No. 1 heat preservation cylinder 31 can be reused, thereby reducing the cost of the thermal field.

[0070] It should be noted that: the friction on the surface of the soft felt 4 is relatively large, and the pressing rod 232 does not need to apply a large force to make the adjacent non-pulverized soft felts 42 in a tightened state.

[0071] In an alternative embodiment, a guiding hole 2220 is formed in the clamping table 22. The guiding hole 2220 penetrates the clamping table 22 along the thickness direction of the clamping table 22 and extends along the length direction of the clamping table 22; the driving member 231 includes a hydraulic cylinder 2310 and a hydraulic rod 2311 connected to the hydraulic cylinder 2310; the pressing rod 232 includes a first rod portion 2320, and the first rod portion 2320 is connected to a third rod portion 2322 through a second rod portion 2321. The third rod portion 2322 is located on the side of the second rod portion 2321 close to the hydraulic cylinder 2310, and the first rod portion 2320 is connected to the hydraulic rod 2311; a part of the first rod portion 2320 passes through the guiding hole 2220, and the hydraulic cylinder 2310 drives the hydraulic rod 2311 to reciprocate along the length direction of the guiding hole 2220, and the hydraulic rod 2311 drives the first rod portion 2320 to reciprocate along the length direction of the clamping table 22.

[0072] Specifically, with continued reference to Figure 1 、 Figure 3 and Figure 7 As shown in the figure, a guiding hole 2220 is formed in the clamping table 22. The guiding hole 2220 penetrates the clamping table 22 along the thickness direction of the clamping table 22 and extends along the length direction of the clamping table 22. For example, the guiding hole 2220 is a strip-shaped hole, and a part of the pressing rod 232 can pass through the guiding hole 2220, and then the pressing rod 232 can reciprocate along the length direction of the clamping table 22 in the guiding hole 2220.

[0073] The driving member 231 includes a hydraulic cylinder 2310 and a hydraulic rod 2311. The hydraulic cylinder 2310 is used to drive the hydraulic rod 2311 to reciprocate along the length direction of the clamping table 22. The hydraulic cylinder 2310 can adopt an hsg40 hydraulic cylinder. Of course, according to the actual situation, other hydraulic cylinders can also be used, and this embodiment does not make specific limitations in this regard. The side of the hydraulic rod 2311 away from the hydraulic cylinder 2310 is fixedly connected to the pressing rod 232, and the hydraulic cylinder 2310 drives the pressing rod 232 to reciprocate along the length direction of the clamping table 22 through the hydraulic rod 2311.

[0074] The pressing rod 232 includes a first rod portion 2320. The first rod portion 2320 is connected to a third rod portion 2322 through a second rod portion 2321. The first rod portion 2320 is used to connect the hydraulic rod 2311, the second rod portion 2321 is used to connect the first rod portion 2320 and the third rod portion 2322, and the third rod portion 2322 is used to compact the non-pulverized soft felt 42 wound on the No. 2 heat preservation cylinder 32.

[0075] The first rod portion 2320, the second rod portion 2321, and the third rod portion 2322 can all be elongated, and their cross-sectional shapes can be circular or rectangular. This embodiment does not make specific limitations on this.

[0076] The third rod portion 2322 is located on the side of the second rod portion 2321 close to the hydraulic cylinder 2310, which is conducive to compacting the unpulverized soft felt 42 wound around the No. 2 heat preservation cylinder 32 in the future; a part of the first rod portion 2320 passes through the guide hole 2220, and the hydraulic cylinder 2310 drives the hydraulic rod 2311 to reciprocate along the length direction of the guide hole 2220. The hydraulic rod 2311 drives the first rod portion 2320 to reciprocate along the length direction of the clamping table 22. With the above scheme, according to the number of layers of the unpulverized soft felt 42 wound on the No. 2 heat preservation cylinder 32, the distance between the third rod portion 2322 of the pressure rod 232 and the unpulverized soft felt 42 wound on the No. 2 heat preservation cylinder 32 is adjusted.

[0077] Optionally, continue to refer to Figure 7 As shown, the clamping table 22 includes a support portion 221 and a guide portion 222 connected to the support portion 221. The support portion 221 is used to carry the hydraulic cylinder 2310, and the guide portion 222 plays a guiding role for the pressure rod 232. The guide hole 2220 is provided in the guide portion 222, and the hydraulic cylinder 2310 is arranged on the top surface of the support portion 221 to support the hydraulic rod 2311.

[0078] In an alternative embodiment, in combination with Figure 1 、 Figure 3 and Figure 7 As shown, the extending directions of the second rod portion 2321 and the hydraulic rod 2311 are the same as the extending direction of the clamping table 22. For example, the second rod portion 2321, the hydraulic rod 2311 and the clamping table 22 are in a parallel relationship. The extending direction of the first rod portion 2320 is the same as the extending direction of the third rod portion 2322, and the first rod portion 2320 and the third rod portion 2322 are in a parallel relationship. The hydraulic rod 2311 and the second rod portion 2321 are both on the side close to the hydraulic cylinder 2310. Along the thickness direction of the clamping table 22, the length of the first rod portion 2320 is less than the length of the third rod portion 2322, reducing the cost of the first rod portion 2320 and thus reducing the cost of the pressure rod 232; the extending direction of the first rod portion 2320 intersects with the extending direction of the second rod portion 2321, and the first rod portion 2320 and the second rod portion 2321 are in a perpendicular relationship, which is more convenient for adjusting the distance between the third rod portion 2322 and the unpulverized soft felt 42 wound on the No. 2 heat preservation cylinder 32, so as to facilitate compacting the unpulverized soft felt 42 wound on the No. 2 heat preservation cylinder 32 with the third rod portion 2322 in the future.

[0079] Optionally, refer to Figure 6As shown, an approximate T-shaped structure is formed between the first rod portion 2320 and the second rod portion 2321. The second rod portion 2321 is located in the middle and lower part of the first rod portion 2320 along the thickness direction of the clamping table 22. Of course, according to the actual situation, the second rod portion 2321 can be located at the bottom end of the first rod portion 2320 along the thickness direction of the clamping table 22. This embodiment does not make specific limitations in this regard. This embodiment only takes the second rod portion 2321 located in the middle and lower part of the first rod portion 2320 along the thickness direction of the clamping table 22 as an example for illustration. An inverted L-shaped structure is formed between the second rod portion 2321 and the third rod portion 2322. The inverted L-shaped structure can be on the side close to the hydraulic cylinder 2310. The overall structure is simple and easy to implement.

[0080] As can be seen from the above embodiments, the device for assisting in replacing the soft felt of the single crystal furnace heat preservation cylinder provided by the present utility model at least achieves the following beneficial effects:

[0081] The device for assisting in replacing the soft felt of the single crystal furnace heat preservation cylinder provided by the present utility model includes a rotating device and a peeling device connected to the rotating device; the rotating device is used to rotate the heat preservation cylinder along the rotation direction, and the soft felt is wound on the heat preservation cylinder; the peeling device is used to peel the soft felt on the heat preservation cylinder. By adopting the above solution, it can be avoided that when the outer soft felt has a low degree of pulverization, it is replaced simultaneously with the inner soft felt, that is, the outer soft felt is reused, thereby reducing the heat field cost. It can be understood that it is convenient to separately collect the soft felt with a relatively light degree of pulverization on the outside, without replacing and discarding it together with the inner soft felt, greatly reducing the heat field cost.

[0082] Although some specific embodiments of the present utility model have been described in detail through examples, those skilled in the art should understand that the above examples are only for illustration and not for limiting the scope of the present utility model. Those skilled in the art should understand that the above embodiments can be modified without departing from the scope and spirit of the present utility model. The scope of the present utility model is defined by the appended claims.

Claims

1. A device for assisting in replacing the soft felt of the thermal insulation cylinder of a single crystal furnace, characterized in that, It includes a rotating device and a stripping device connected to the rotating device. The rotating device is used to rotate the heat preservation cylinder in the rotating direction, and a soft felt is wound around the heat preservation cylinder; the stripping device is used to strip the soft felt from the heat preservation cylinder. The rotating device includes a carrier and a connecting piece. The carrier includes carrier platforms arranged in sequence along the circumferential direction. Adjacent carrier platforms are connected by a first connecting rod. Each carrier platform includes a fixing part, and a first rotating shaft is arranged at the vertex angle between at least two fixing parts. The first rotating shaft is used to rotate the fixing part in the rotating direction; a bearing part is arranged on one side of the fixing part away from the first rotating shaft, and the bearing part is used to bear the soft felt. The connecting piece includes a frame, and the carrier is surrounded within the frame; the frame is connected to a second rotating shaft through a third connecting rod, and the extending direction of the third connecting rod intersects with the extending direction of the second rotating shaft. The second rotating shaft is used to rotate and wind the unfragmented soft felt in the rotating direction. The stripping device includes a clamping platform connected to the connecting piece, and the extending direction of the clamping platform intersects with the extending direction of the second rotating shaft. A stripping piece for stripping the soft felt is arranged on the clamping platform. The stripping piece includes a driving part and a pressing rod connected to the driving part. The driving part is used to drive the pressing rod to reciprocate along the length direction of the clamping platform, and the pressing rod is used to press the unfragmented soft felt.

2. The device for assisting in replacing the soft felt of the thermal insulation cylinder of a single crystal furnace according to claim 1, wherein A limiting part is arranged on one side of the fixing part close to the bearing part, and the limiting part is used to limit the soft felt.

3. The device for assisting in replacing the soft felt of the thermal insulation cylinder of a single crystal furnace according to claim 2, wherein, The bearing part includes a bearing rod and a second connecting rod connected to the bearing rod. The second connecting rod is located on one side of the bearing rod close to the fixing part.

4. The device for assisting in replacing the soft felt of the thermal insulation cylinder of a single crystal furnace according to claim 3, wherein, Along the direction pointing from the bearing part to the fixing part, the cross-sectional shape of the bearing rod and / or the limiting part is arc-shaped, and the bearing rod and / or the limiting part protrude away from the fixing part.

5. The device for assisting in replacing the soft felt of the heat preservation cylinder of a single crystal furnace according to claim 1, wherein A guiding hole is formed on the clamping platform. The guiding hole penetrates through the clamping platform along the thickness direction of the clamping platform and extends along the length direction of the clamping platform. The driving part includes a hydraulic cylinder and a hydraulic rod connected to the hydraulic cylinder. The pressing rod includes a first rod part, the first rod part is connected to a third rod part through a second rod part. The third rod part is located on one side of the second rod part close to the hydraulic cylinder, and the first rod part is connected to the hydraulic rod. Part of the first rod part passes through the guiding hole. The hydraulic cylinder drives the hydraulic rod to reciprocate along the length direction of the guiding hole, and the hydraulic rod drives the first rod part to reciprocate along the length direction of the clamping platform.

6. The device for assisting in replacing the soft felt of the thermal insulation cylinder of a single crystal furnace according to claim 5, characterized in that, The extending directions of the second rod part and the hydraulic rod are the same as the extending direction of the clamping platform. The extending direction of the first rod part is the same as the extending direction of the third rod part. Along the thickness direction of the clamping platform, the length of the first rod part is less than the length of the third rod part. The extending direction of the first rod part intersects with the extending direction of the second rod part.

7. The device for assisting in replacing the soft felt of the thermal insulation cylinder of a single crystal furnace according to claim 6, wherein, An approximately T-shaped structure is formed between the first rod part and the second rod part, and an inverted L-shaped structure is formed between the second rod part and the third rod part.

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