Lifting structure and feeder

Abstract

The utility model provides a lifting structure and a feeder. The lifting structure comprises a lifting rod, a lining component and a collet component; a penetrating hole which extends in the axis direction and penetrates through the upper surface and the lower surface of the lining component is formed in the central axis position of the lining component; the through hole comprises a first section and a second section which are communicated along the direction from the lower surface to the upper surface; the first section is of a gradually-shrinking structure in the direction from the lower surface to the upper surface, and the second section is of a straight cylinder structure. The lifting rod penetrates through the through hole in the direction from the lower surface to the upper surface, the position, corresponding to the first section, of the lifting rod is provided with a gradually-shrinking structure matched with the first section, and the position, corresponding to the second section, of the lifting rod is provided with a straight cylinder shape matched with the second section. The bottom supporting component is sleeved on the lining component and at least part of the lifting rod. The tapered structure of the lifting rod is finally clamped at the tapered structure position of the first section, and at the moment, the lining component and the lifting rod form a plug structure; the service life of the lining component is greatly prolonged, and meanwhile, the service life of the collet component is also prolonged.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of crystal pulling, in particular to a pulling structure and a feeder. BACKGROUND

[0002] In the process of pulling crystal, when it is found that there is insufficient silicon powder, a feeder needs to be used to add silicon powder into a crucible. The pulling structure, as an important part of the feeder, plays a role in pulling and dragging the feeder. In combination with the drawings, the pulling structure includes a lifting rod 1', a bottom liner 2', a bottom cone 3' and a bottom cone protective cover 5'. The bottom cone 3' is fixed to the lifting rod 1' by means of a latch 4', the bottom liner 2' is arranged on the bottom cone 3', and the bottom cone protective cover 5' is arranged on the opening of the bottom cone 3'. Figures 1-3

[0003] Specifically, the lifting rod 1' and the bottom liner 2' are fixed by means of internal and external threads, and the latch 4' is arranged through the bottom liner 2' and the lifting rod 1' to provide double protection against the bottom cone 3' and the lifting rod 1' from falling off. However, after being used for a long time, the internal threads of the bottom liner 2' (carbon-carbon composite material) are aged and cannot be tightly matched with the lifting rod 1', which may cause loosening. The loosening needs to be replaced with a new pulling structure in time, which reduces the work efficiency and increases the cost.

[0004] Therefore, there is an urgent need for a pulling structure and a feeder to solve the technical problems existing in the prior art to some extent. CONTENT OF THE UTILITY MODEL

[0005] The purpose of the present application is to provide a pulling structure and a feeder to improve the work efficiency and reduce the cost to some extent.

[0006] The present application provides a pulling structure, which includes a pulling rod, a supporting member and a bottom supporting member.

[0007] The supporting member is provided with a through hole at the position of the central axis, which extends along the axial direction and penetrates the upper surface and the lower surface of the supporting member. The through hole includes a first section and a second section which are connected along the direction from the lower surface to the upper surface. The first section is tapered along the direction from the lower surface to the upper surface, and the second section is a straight cylinder.

[0008] The pulling rod penetrates the through hole along the direction from the lower surface to the upper surface, and the position corresponding to the first section of the pulling rod has a tapered structure matched with the first section, and the position corresponding to the second section has a straight cylinder structure matched with the second section, so that the pulling rod and the supporting member are clamped and fixed.

[0009] The bottom supporting member is sleeved on the supporting member and at least part of the pulling rod.

[0010] ​Further, the supporting member comprises a bottom support and a bottom protrusion.

[0011] The bottom protrusion protrudes from the bottom support towards the pulling rod at a position of the central axis of the bottom support;

[0012] The through hole penetrates the bottom support and the bottom protrusion; the first section starts from the lower surface of the bottom support and ends at the preset position of the bottom protrusion; the second section starts from the preset position of the bottom protrusion and ends at the upper surface of the bottom protrusion.

[0013] Further, the diameter of the first section at the lower surface of the bottom support is greater than the diameter of the first section at the preset position of the bottom protrusion, so that the first section is tapered in the direction from the bottom support to the bottom protrusion.

[0014] The diameter of the first section at the preset position of the bottom protrusion is equal to the diameter of the second section, so that the second section is straight.

[0015] Further, the bottom protrusion is in the shape of a circular truncated cone and is tapered in the direction from the bottom support to the bottom protrusion.

[0016] Further, the supporting member comprises a bottom support and a bottom protrusion.

[0017] The bottom support is provided with a through channel at the position of the central axis, and the through channel comprises a first section, a second section, a third section and a fourth section which are sequentially connected in the direction from the bottom of the bottom support to the top of the bottom support.

[0018] The second section is adapted to the bottom support, the third section is adapted to the bottom protrusion, and the fourth section is adapted to the pulling rod.

[0019] The bottom support cover is arranged at the first section.

[0020] Further, the outer side wall of the bottom support cover is provided with external threads, the inner side wall of the first section is provided with internal threads, and the external threads are adapted to the internal threads, so that the bottom support cover can be screwed to the first section.

[0021] Further, the bottom support is in the shape of a circular truncated cone and is tapered in the direction from the bottom support to the bottom protrusion.

[0022] Further, the pulling rod comprises a first rod section and a second rod section.

[0023] The first rod section and the second rod section are integrally formed.

[0024] In the technical solution, further, the material of the lifting rod is 310S stainless steel.

[0025] The application also provides a feeder comprising the lifting structure.

[0026] Compared with the prior art, the application has the following beneficial effects:

[0027] The application provides a lifting structure; comprising a lifting rod, a supporting member and a bottom supporting member;

[0028] The supporting member is provided with a through hole extending along the axial direction thereof and penetrating the upper surface and the lower surface thereof at the position of the central axis; the through hole comprises a first section and a second section in communication along the direction from the lower surface to the upper surface; the first section is tapered along the direction from the lower surface to the upper surface, and the second section is straight cylindrical;

[0029] The lifting rod is arranged through the through hole along the direction from the lower surface to the upper surface, and the position corresponding to the first section of the lifting rod is tapered to match the first section, and the position corresponding to the second section is straight cylindrical to match the second section, so that the lifting rod is fixedly connected with the supporting member;

[0030] The bottom supporting member is sleeved with the supporting member and at least part of the lifting rod.

[0031] In the actual installation process, the tapered structure of the lifting rod is finally fixed at the tapered structure position of the first section when the lifting rod is arranged through the supporting member from the lower surface to the upper surface, that is, the supporting member and the lifting rod form a plug structure at this time. The plug structure replaces the threaded and pin connection mode in the prior art, greatly improves the service life of the supporting member, and also improves the service life of the bottom supporting member.

[0032] In addition, the application is simple to assemble, and does not need to be assembled by threads and pins manually, but only needs to be directly arranged through the supporting member, so that the work efficiency is improved to a certain extent.

[0033] The application also provides a feeder comprising the lifting structure. Therefore, the feeder has all the beneficial effects of the lifting structure, which will not be described in detail here. BRIEF DESCRIPTION OF DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the specific embodiments of the present application or the prior art, the accompanying drawings needed to be used in the description of the specific embodiments or the prior art will be briefly introduced. Obviously, the accompanying drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort on the basis of these drawings.

[0035] Figure 1 A structural schematic diagram of a lifting structure in the prior art;

[0036] Figure 2 A partial structural schematic diagram of a hidden bottom cone in a lifting structure in the prior art;

[0037] Figure 3 A partial sectional view of a lifting structure in the prior art;

[0038] Figure 4 A safety factor simulation diagram of a lifting structure in the prior art;

[0039] Figure 5 A structural schematic diagram of a lifting structure provided by the present application;

[0040] Figure 6 A partial structural schematic diagram of a hidden bottom cone in a lifting structure provided by the present application;

[0041] Figure 7 A partial sectional view of a lifting structure provided by the present application;

[0042] Figure 8 A safety factor simulation diagram of a lifting structure provided by the present application;

[0043] Figure 9 A structural schematic diagram of a bottom cone in a lifting structure provided by the present application under a first perspective;

[0044] Figure 10 A structural schematic diagram of a bottom cone in a lifting structure provided by the present application under a second perspective;

[0045] Figure 11 A structural schematic diagram of a bottom lining in a lifting structure provided by the present application under a first perspective;

[0046] Figure 12 A structural schematic diagram of a bottom lining in a lifting structure provided by the present application under a second perspective;

[0047] Figure 13 A sectional view of a bottom lining in a lifting structure provided by the present application.

[0048] Reference numerals: 1'-lift rod; 2'-bottom bolster; 3'-bottom cone; 4'-latch; 5'-bottom cone guard cover; 6'-upper lift section; 7'-lower lift section; 1-lift rod; 2-bolster member; 201-first section; 202-second section; 203-pass-through hole; 204-bottom bolster; 205-bottom protrusion; 3-bottom bolster member; 301-bottom cone; 302-bottom cone guard cover; 303-first section; 304-second section; 305-third section; 306-fourth section; 307-pass-through passage. DETAILED DESCRIPTION

[0049] The following detailed description is presented to aid in understanding the method, apparatus and / or system described herein. It is not intended to limit the method, apparatus and / or system described herein to the details described. Rather, it is intended to cover any modifications, variations, and equivalents that are within the scope of the present disclosure, as encompassed by the disclosure. For instance, the order in which the operations are described is merely an example and the operations can be carried out in a different order than described herein, or the operations can be carried out in parallel. Furthermore, it is intended that the description presented herein be considered as exemplary only and that the application be considered as not being limited to the examples described. It is also intended that the following detailed description be viewed in the context of the claims.

[0050] The features described herein can be implemented in different forms and should not be construed as limited to the examples described herein. Rather, these examples are provided as example forms of implementing the methods, apparatus and / or systems described herein for the purpose of conveying aspects of the present disclosure and a practical understanding of the ways in which the methods, apparatus and / or systems described herein can be implemented. It will be appreciated that the examples described herein are not intended to limit the ways in which the methods, apparatus and / or systems described herein can be implemented.

[0051] Throughout the specification, when an element (such as a layer, region or substrate) is referred to as being "on" another element, "connected to" another element, "coupled to" another element, "in contact with" another element, or "covering" another element, it can be directly on, connected, coupled, in contact with or covering the other element, or one or more other elements can be interposed therebetween. In contrast, when an element is referred to as being "directly on", "directly connected to", "directly coupled to", "directly in contact with" or "directly covering" another element, there are no other elements interposed therebetween.

[0052] As used herein, the term "and / or" includes any and all combinations of one or more of the associated items.

[0053] Although terms such as "first" and "second" and "third" can be used herein to describe various elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. Rather, these terms are only used to distinguish one element, component, region, layer or section from another element, component, region, layer or section. Thus, terms of a first element, component, region, layer or section described herein could also be termed a second element, component, region, layer or section without departing from the teachings of the examples.

[0054] For ease of description, spatial relationship terms, such as "on", "upper", "below", and "lower", can be used herein to describe the relationship between one element and another element as shown in the drawings. Such spatial relationship terms are intended to encompass different orientations of the device in use or operation, in addition to the orientation depicted in the drawings. For example, if the device in the drawings is turned over, an element described as on "upper" or "above" another element would then be oriented "below" or "on" the other element. Accordingly, the term "on" encompasses both an "on" and "below" orientation in accordance with the spatial orientation of the device. The device can be oriented in other ways (e.g., rotated 90 degrees or at other orientations) and an appropriate modification to the spatial relationship terms would be made to accommodate those orientations.

[0055] The terminology used herein is for the purpose of describing various examples only and is not intended to be limiting of the present disclosure. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises", "comprising", "includes", "including" and "has", "having" and "contains", "containing" as used herein, are meant to be open-ended terms that do not exclude other components, but mean that the listed components are included.

[0056] Variations in shapes that are shown in the drawings can occur as a result of manufacturing processes and / or tolerances. Thus, the examples described herein are not limited to the precise shapes shown in the drawings, but rather include variations in shapes that would occur to one of ordinary skill in the art upon inspective of the drawings.

[0057] Features of the examples described herein can be combined with one another in various ways. In addition, although examples described herein have a variety of configurations, other configurations are possible in which are apparent after inspective of the disclosure herein.

[0058] Embodiment One

[0059] The following description is provided in conjunction with Figures 5-13 A pull-up structure is described in detail.

[0060] The application provides a lifting structure; the lifting structure comprises a lifting rod, a supporting member 2 and a bottom supporting member 3.

[0061] Specifically, in combination with Figure 7 and referring to Figure 12 , the supporting member 2 is provided with a through hole 203 extending along the axial direction thereof and penetrating the upper surface and the lower surface thereof at the position of the central axis; the through hole 203 comprises a first section 201 and a second section 202 in communication along the direction from the lower surface to the upper surface, that is, along the vertical upward direction; wherein the first section 201 is in a tapered structure along the direction from the lower surface to the upper surface, in combination with Figure 12 , it can be known that the first section 201 is in a circular truncated cone shape; in combination with Figure 7 , it can be known that the second section 202 is in a straight cylinder structure.

[0062] Specifically, in combination with Figure 7 , the lifting rod is arranged through the through hole 203 along the direction from the lower surface to the upper surface, and the position corresponding to the first section 201 of the lifting rod is provided with a tapered structure matched with the first section 201, and the position corresponding to the second section 202 is provided with a straight cylinder structure matched with the second section 202.

[0063] The bottom supporting member 3 is sleeved on the supporting member 2 and at least part of the lifting rod.

[0064] In summary, in the actual installation process, the tapered structure of the lifting rod is finally clamped at the tapered structure position of the first section 201 in the process of the lifting rod being arranged through the supporting member 2 from the lower surface to the upper surface, that is, the supporting member 2 and the lifting rod form a plug structure at this time. This plug structure replaces the connection mode of the thread and the pin in the prior art, greatly improves the service life of the supporting member 2, and also improves the service life of the bottom supporting member 3.

[0065] In addition, the application is simple to assemble, does not need to be assembled by manual thread and pin, and only needs to be directly arranged through the supporting member 2, so that the work efficiency is improved to a certain extent.

[0066] In addition, in combination with Figure 4 , the safety factor diagram simulated after the lifting rod 1 and the bottom supporting member 3 are assembled in the prior art is given in Figure 4 , it can be known from Figure 4 that the maximum point of the safety factor appears at the connection position of the lifting rod and the bottom supporting assembly, and the maximum safety factor is 1.589e+05; the minimum point of the safety factor appears at the connection position of the lifting rod and the supporting member 2, and the minimum safety factor is 1.191e+0; in combination with Figure 13 , Figure 13 , the safety factor diagram simulated after the lifting rod 1 and the bottom supporting member 3 are assembled in the application, it can be known from Figure 13As can be seen, the maximum point of the safety factor appears at the connection between the pulling rod and the supporting member 2, and the maximum safety factor is 2.237e+05; the minimum point of the safety factor appears at the connection between the supporting member 2 and the bottom supporting member 3, and the minimum safety factor is 3.671e+01. As can be seen, the safety factor of any position of the present application is higher than that of the prior art, and thus the safety factor of the present application is improved as a whole, and the safety risk is greatly reduced compared with the prior art.

[0067] In this embodiment, further, in combination with Figure 7 , and referring to Figures 10-12 , the supporting member 2 comprises a bottom support 204 and a bottom protrusion 205; the bottom protrusion 205 protrudes from one side of the bottom support 204 towards the pulling rod at the position of the central axis of the bottom support 204; in addition, the through hole 203 penetrates the bottom support 204 and the bottom protrusion 205; the first section 201 starts from the lower surface of the bottom support 204 and ends at a predetermined position of the bottom protrusion 205; specifically, in combination with Figure 12 , the first section 201 ends at the middle position of the bottom protrusion 205. The second section 202 starts from the middle position of the bottom protrusion 205 and ends at the upper surface of the bottom protrusion 205.

[0068] Specifically, the diameter of the first section 201 at the lower surface of the bottom support 204 is greater than the diameter of the first section 201 at the middle position of the bottom protrusion 205, so that the first section 201 has a tapered structure along the direction from the bottom support 204 to the bottom protrusion 205.

[0069] Specifically, the diameter of the first section 201 at the middle position of the bottom protrusion 205 is equal to the diameter of the second section 202, so that the second section 202 has a straight cylinder structure.

[0070] Further, the bottom protrusion 205 has a circular truncated cone structure and a tapered structure along the direction from the bottom support 204 to the bottom protrusion 205.

[0071] In this embodiment, further, in combination with Figure 7 , and referring to Figure 8 , Figure 9 , the bottom supporting member 3 comprises a bottom cone 301 and a bottom cone protective cover 302.

[0072] Specifically, the bottom cone 301 is provided with a through passage 307 at the position of the central axis, and the through passage 307 comprises a first section 303, a second section 304, a third section 305 and a fourth section 306 which are sequentially connected along the direction from the bottom of the bottom cone 301 to the top; the second section 304 is adapted to the bottom support 204, the third section 305 is adapted to the bottom protrusion 205, and the fourth section 306 is adapted to the pulling rod; the bottom cone protective cover 302 is arranged at the first section 303.

[0073] Further, in combination withFigure 7 As shown, the first section 303 is straight; the second section 304 is tapered from the bottom cone protective cover 302 to the bottom cone 301, and the first section 303 is at an angle of 45 degrees with the second section 304; the third section 305 is tapered from the bottom cone protective cover 302 to the bottom cone 301, and the second section 304 is at an angle of 75 degrees with the third section 305; and the fourth section 306 is straight.

[0074] Preferably, the diameter of the fourth section 306 is greater than the diameter of the lifting rod 1.

[0075] Specifically, the outer side wall of the bottom cone protective cover 302 is provided with external threads, and the inner side wall of the first section 303 is provided with internal threads, and the external threads are matched with the internal threads, so that the bottom cone protective cover 302 can be screwed to the first section 303.

[0076] Specifically, the bottom cone 301 is a circular truncated cone structure, which is tapered from the bottom cushion 204 to the bottom convex 205.

[0077] In this embodiment, further, in combination with Figure 2 As shown, the prior art lifting rod includes an upper lifting section 6' and a lower lifting section 7'; the upper lifting section 6' and the lower lifting section 7' are connected together by an internal and external thread connection, and then this internal and external thread connection will be accompanied by thread fracture after long-term use. Based on this problem, the present application develops a lifting rod, which includes a first rod section and a second rod section; the first rod section and the second rod section are integrally formed, that is, the lifting rod of the present application is a whole structure, and is not designed in a split type, thereby reducing the fracture problem caused by the thread connection in the prior art.

[0078] In this embodiment, further, the material of the lifting rod is 310S stainless steel. Since the lower lifting section 7' in the prior art adopts high-temperature molybdenum, it has a relatively high cost, while the whole lifting rod 1 of the present application adopts 310S stainless steel, thereby greatly reducing the cost.

[0079] Embodiment Two

[0080] The present application also provides a feeder comprising the lifting structure described above. Therefore, all the beneficial effects of the lifting structure are not specifically described here.

[0081] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A pull-up structure; characterized by, The lifting rod, the supporting member and the bottom supporting member are included; The supporting member is provided with a through hole extending along the axial direction and penetrating the upper surface and the lower surface at the position of the central axis; the through hole includes a first section and a second section which are in communication along the direction from the lower surface to the upper surface; the first section is tapered along the direction from the lower surface to the upper surface, and the second section is straight. The lifting rod penetrates the through hole along the direction from the lower surface to the upper surface, and the position corresponding to the first section of the lifting rod has a tapered structure matching the first section, and the position corresponding to the second section has a straight structure matching the second section, so that the lifting rod is fixedly connected with the supporting member. The bottom supporting member is sleeved on the supporting member and at least part of the lifting rod.

2. The pull-up structure according to claim 1, wherein The supporting member includes a bottom supporting base and a bottom protrusion; The bottom protrusion protrudes from the side of the bottom supporting base facing the lifting rod at the position of the central axis of the bottom supporting base; The through hole penetrates the bottom supporting base and the bottom protrusion; the first section starts at the lower surface of the bottom supporting base and ends at a preset position of the bottom protrusion; the second section starts at the preset position of the bottom protrusion and ends at the upper surface of the bottom protrusion.

3. The pull-up structure according to claim 2, wherein, The diameter of the first section at the lower surface of the bottom supporting base is greater than the diameter of the first section at the preset position of the bottom protrusion, so that the first section is tapered along the direction from the bottom supporting base to the bottom protrusion; The diameter of the first section at the preset position of the bottom protrusion is equal to the diameter of the second section, so that the second section is straight.

4. The pull-up structure of claim 2, wherein, The bottom protrusion is in the shape of a circular truncated cone and is tapered along the direction from the bottom supporting base to the bottom protrusion.

5. The pull-up structure according to claim 4, wherein, The bottom supporting member includes a bottom cone and a bottom cone protective cover; The bottom cone is provided with a through channel at the position of the central axis; the through channel includes a first section, a second section, a third section and a fourth section which are in communication along the direction from the bottom of the bottom cone to the top; The second section matches the bottom supporting base, the third section matches the bottom protrusion, and the fourth section matches the lifting rod; The bottom cone protective cover is arranged at the first section.

6. The pull-up structure according to claim 5, wherein, An outer thread is arranged on the outer sidewall of the bottom cone protective cover, and an inner thread is arranged on the inner sidewall of the first section; the outer thread matches the inner thread, so that the bottom cone protective cover can be screwed to the first section.

7. The pull-up structure of claim 5, wherein, The bottom cone is in the shape of a circular truncated cone and is tapered along the direction from the bottom supporting base to the bottom protrusion.

8. The pull-up structure of claim 1, wherein, The lifting rod includes a first rod section and a second rod section; The first rod section and the second rod section are integrally formed.

9. The pull-up structure of claim 1, wherein, The material of the lifting rod is 310S stainless steel.

10. A charger characterized by, The lifting structure according to any one of claims 1-9 is included.

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