Multifunctional counter weight and crystal pulling equipment

Abstract

The utility model provides a multifunctional heavy hammer and crystal pulling equipment. The multifunctional heavy hammer comprises a heavy hammer body and a hanging assembly, the hanging assembly comprises a ball head part which can be connected with the tungsten wire rope; the heavy hammer body comprises a hanging part; the hanging part comprises a plurality of limiting supporting legs, and the multiple limiting supporting legs are arranged around a preset circle center point at intervals; the end faces, facing the preset circle center point position, of the multiple limiting supporting legs are arc-shaped end faces, and the arc-shaped end faces are tangent to the ball head part. When the counter weight body is hung, the ball head is in contact fit with the arc-shaped end face of the limiting supporting leg, relative sliding is generated to find the gravity center, the gravity centers of the counter weight and the tungsten wire rope are coaxial, real-time automatic centering is achieved in the crystal growth rotating process, and the gravity center axis deviation and shaking of the counter weight are effectively reduced; the problems of crystal shaking and crystal guiding deviation caused by poor point contact matching of the heavy hammer and the tungsten wire rope are effectively solved, and the quality of a single monocrystalline silicon rod is greatly improved.

Description

Technical Field

[0001] The present application relates to the technical field of crystal pulling, and particularly to a multifunctional weight and a crystal pulling device. Background Art

[0002] At present, in the single crystal furnace manufacturing industry and the furnace using industry, the cooperation between the tungsten wire rope and the molybdenum weight adopts two methods: the splint type or the ordinary hanging type.

[0003] Specifically, in the splint type, the tungsten wire rope is mainly located in the weight wire groove, and is fastened to the weight in the form of a splint by screws to clamp the tungsten wire rope; in the ordinary hanging type, the head of the tungsten wire rope is hung on the weight or the cylindrical hole of the open sleeve.

[0004] However, the above two structures have the following disadvantages: (1) The head of the tungsten wire rope in the splint type is a pointed structure. During cooperation, the pointed structure must be fixed through a "snail buckle" or directly knotted. During this process, the tungsten wire rope generates a hard fold, seriously affecting the service life of the tungsten wire rope. Moreover, when the splint is used in cooperation, it is difficult to ensure that the centers of gravity of the weight and the tungsten wire rope are coaxial in the vertical position, and there are potential risks of crystal shaking and crystal seeding deviation; (2) The head of the tungsten wire rope in the ordinary hanging type is a cylindrical ball head, but the spherical surface of the cylindrical ball head is in point contact with the lower end of the weight or the cylindrical hole of the open sleeve during hanging. During cooperation, due to the influence of the processing gap, it is still difficult to ensure that the centers of gravity of the weight and the tungsten wire rope are coaxial in the vertical direction, and there are potential risks of crystal shaking and crystal seeding deviation.

[0005] It should also be noted that during the crystal pulling production process, for different process sections, the collet and the feeding hook need to be alternately replaced, which also has potential risks of crystal shaking and crystal seeding deviation.

[0006] Therefore, there is an urgent need for a multifunctional weight and a crystal pulling device to solve the technical problems existing in the prior art to a certain extent. Utility Model Content

[0007] The purpose of the present application is to provide a multifunctional weight and a crystal pulling device to solve, to a certain extent, the technical problems of crystal shaking and crystal seeding deviation caused by the existing splint type or ordinary hanging type structures.

[0008] The present application provides a multifunctional weight, including a weight body and a suspension assembly;

[0009] The suspension assembly includes a spherical head portion capable of connecting with a tungsten wire rope; the weight body includes a suspension portion;

[0010] The suspension portion includes a plurality of limiting legs, and the plurality of limiting legs are arranged at intervals around a preset center point position;

[0011] The end faces of the plurality of limiting legs facing the preset center point position are arc end faces, and the arc end faces are tangent to the spherical head portion;

[0012] When the tungsten wire rope is pulled, the ball head slides relative to the arc end face and finds the center of gravity, so that the weight body is coaxial with the tungsten wire rope.

[0013] In the above technical solution, further, there are two limiting legs, and the two limiting legs are symmetrically arranged with respect to the preset center point position.

[0014] In the above technical solution, further, there are four limiting legs, and the four limiting legs are arranged in a circular pattern with respect to the preset center point position.

[0015] In the above technical solution, further, the weight body further includes a hanging portion connected to the hanging portion; the multifunctional weight further includes a hanging assembly;

[0016] The hanging assembly includes a seat body portion; at both ends of the seat body portion, a crystal pulling hanging portion and a material hanging hanging portion extend in opposite directions respectively;

[0017] On the hanging portion, a non-working area, a rotating area, and a working area are sequentially formed along a first direction; the seat body portion is rotatably arranged in the rotating area, so that one of the crystal pulling hanging portion and the material hanging hanging portion can be located in the non-working area, and the other is located in the working area;

[0018] When the crystal pulling hanging portion is located in the working area and the material hanging hanging portion is located in the non-working area, the crystal pulling portion is used for crystal pulling; when the crystal pulling hanging portion is located in the non-working area and the material hanging hanging portion is located in the working area, the material hanging hanging portion is used for hanging a material cylinder.

[0019] In the above technical solution, further, the seat body portion is a seat barrel, the crystal pulling hanging portion is a crystal pulling rod, and the material hanging hanging portion is a hanging fork;

[0020] The crystal pulling rod and the hanging fork are respectively arranged on two opposite side walls of the seat barrel;

[0021] The seat barrel is rotatably arranged on the hanging portion, so that one of the crystal pulling rod and the hanging fork can be located in the non-working area, and the other is located in the working area.

[0022] In the above technical solution, further, the hanging fork includes a first fork arm, a second fork arm, and a movable arm;

[0023] The first fork arm and the second fork arm are arranged on the seat barrel at intervals along a second direction, so that an activity space is defined between the first fork arm and the second fork arm;

[0024] The opposite side walls of the first fork arm and the second fork arm are provided with mounting grooves extending in the first direction;

[0025] The first end of the movable arm is rotatably arranged in one of the mounting grooves on the first fork arm or the mounting grooves on the second fork arm, and the other end is movably arranged in the other, so that the movable arm can be opened or closed.

[0026] In the above technical solution, further, the hanging part includes a first connecting arm and a second connecting arm;

[0027] The first connecting arm and the second connecting arm are arranged at intervals in the second direction, so that a receiving space is formed between the first connecting arm and the second connecting arm, and the non-working area, the rotating area and the working area are formed in the receiving space along the first direction.

[0028] In the above technical solution, further, the hanging assembly further includes a connecting piece;

[0029] The connecting piece inserts the seat barrel into the weight body in the rotating area, and the seat barrel can rotate around the connecting piece so that the seat barrel is rotatably arranged on the hanging part.

[0030] In the above technical solution, further, the connecting piece includes a pin and a nut;

[0031] The pin sequentially passes through the first connecting arm, the seat barrel and the second connecting arm along the second direction;

[0032] The nut locks the part of the pin passing through the second connecting part to the second connecting arm.

[0033] This application also provides a crystal pulling device, including the above-mentioned multifunctional weight.

[0034] Compared with the prior art, this application has the following beneficial effects:

[0035] This application provides a multifunctional weight, including a weight body and a hanging assembly;

[0036] The hanging assembly includes a spherical head that can be connected to a tungsten wire rope; the weight body includes a hanging part;

[0037] The hanging part includes a plurality of limiting legs, and the plurality of limiting legs are arranged at intervals around a preset center point position;

[0038] The end faces of the plurality of limiting legs facing the preset center point position are arc-shaped end faces, and the arc-shaped end faces are tangent to the spherical head;

[0039] When the tungsten wire rope is pulled, the ball head and the arc-shaped end surface slide relative to each other and find the center of gravity, so that the weight body and the tungsten wire rope are coaxial.

[0040] In summary, when the multifunctional weight is not working, the ball head is in a free state, that is, the ball head does not contact the arc-shaped end face of the limit leg; when the tungsten wire rope is pulled, the ball head and the arc-shaped end face slide relative to each other and find the center of gravity, so that the weight body and the tungsten wire rope are coaxial. Furthermore, when the weight body is suspended, the ball head contacts and cooperates with the arc-shaped end face of the limit leg, resulting in relative sliding to find the center of gravity, so that the center of gravity of the weight and the tungsten wire rope are coaxial. During the crystal growth and rotation process, the center is automatically found in real time, which effectively reduces the deviation and shaking of the center of gravity axis of the weight, and effectively solves the problems of crystal shaking and crystal deviation caused by poor point contact and cooperation between the weight and the tungsten wire rope, greatly improving the quality of single crystal silicon rods. It greatly reduces the risk of crystal shaking accidents for single crystal silicon production enterprises using the direct pulling method, effectively guarantees the production quality of single crystal silicon rods, and lays the process guarantee conditions and foundation for the development of larger size and heavier single crystal silicon rods in the single crystal production industry, effectively promoting the development of higher capacity and higher quality in the single crystal industry.

[0041] The present application also provides a crystal pulling device, including the above-mentioned multifunctional weight, so it has all the beneficial effects of the multifunctional weight, which will not be elaborated in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0043] Figure 1 A schematic diagram of the structure of the multifunctional heavy hammer provided in this application from a first perspective;

[0044] Figure 2 for Figure 1 A in the enlarged view;

[0045] Figure 3 for Figure 1 The enlarged view of point B in the figure;

[0046] Figure 4 A schematic diagram of the structure of the multifunctional weight provided in this application at a second viewing angle;

[0047] Figure 5 for Figure 4 The enlarged view of point C in the figure;

[0048] Figure 6Schematic diagram of the structure of the ball head in the multifunctional hammer provided by this application;

[0049] Figure 7 Schematic diagram of the structure of the multifunctional hammer provided by this application from the third perspective;

[0050] Figure 8 For Figure 7 Enlarged view of part D in

[0051] Figure 9 For Figure 7 Enlarged view of part E in

[0052] Figure 10 Schematic diagram of the structure of the multifunctional hammer provided by this application from the fourth perspective;

[0053] Figure 11 For Figure 10 Enlarged view of part F in

[0054] Reference numerals: 1 - Hammer body; 2 - Suspension part; 3 - Ball head; 4 - Hanging rod; 5 - Limiting leg; 6 - Arc end face; 7 - Hanging part; 8 - Hanging component; 9 - Seat body part; 10 - Crystal pulling hanging part; 11 - Material hanging hanging part; 12 - First direction; 13 - Non - working area; 14 - Rotating area; 15 - Working area; 16 - Seat barrel; 17 - Crystal pulling rod; 18 - Hanging fork; 19 - First fork arm; 20 - Second fork arm; 21 - Movable arm; 22 - Second direction; 23 - Movable space; 24 - Installation groove; 25 - Side wall; 26 - First connecting arm; 27 - Second connecting arm; 28 - Accommodating space; 29 - Connecting piece; 30 - Pin; 31 - Nut; 32 - Ball head. Detailed implementation manners

[0055] The following detailed implementation manners are provided to assist the reader in obtaining a comprehensive understanding of the methods, devices, and / or systems described herein. However, after understanding the disclosure of this application, various changes, modifications, and equivalents of the methods, devices, and / or systems described herein will be apparent. For example, the order of the operations described herein is merely exemplary and is not limited to the order set forth herein. Rather, changes that will be apparent after understanding the disclosure of this application can be made, except for operations that must occur in a specific order. In addition, for the sake of clarity and conciseness, descriptions of features known in the art may be omitted.

[0056] The features described herein may be implemented in different forms and should not be construed as limited to the examples described herein. Rather, the examples described herein are provided only to illustrate some of the many possible ways of implementing the methods, devices, and / or systems described herein that will be apparent after understanding the disclosure of this application.

[0057] Throughout the specification, when an element (such as a layer, region, or substrate) is described as being "on" another element, "connected to" another element, "coupled to" another element, "above" another element, or "covering" another element, it can be directly "on" another element, "connected to" another element, "coupled to" another element, "above" another element, or "covering" another element, or there can be one or more other elements intervening between them. In contrast, when an element is described as being "directly on" another element, "directly connected to" another element, "directly coupled to" another element, "directly above" another element, or "directly covering" another element, there can be no other elements intervening between them.

[0058] As used herein, the term "and / or" includes any one of the listed related items and any combination of any two or more of them.

[0059] Although terms such as "first", "second", and "third" may be used herein to describe various components, elements, regions, layers, or parts, these components, elements, regions, layers, or parts are not limited by these terms. Rather, these terms are only used to distinguish one component, element, region, layer, or part from another. Thus, the first component, element, region, layer, or part described in the examples herein could also be termed the second component, element, region, layer, or part without departing from the teachings of the examples.

[0060] For ease of description, spatial relationship terms such as "above", "upper", "below", and "lower" may be used herein to describe the relationship of one element to another as shown in the figures. 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 figures. For example, if the device in the figures is turned over, an element described as "above" or "upper" relative to another element will then be "below" or "lower" relative to the other element. Thus, the term "above" includes both the orientations of "above" and "below" depending on the spatial orientation of the device. The device may also be positioned in other ways (e.g., rotated 90 degrees or in other orientations), and the spatial relationship terms used herein will be interpreted accordingly.

[0061] The terms used herein are for describing various examples only and are not intended to limit the present disclosure. Unless the context clearly indicates otherwise, the singular forms are also intended to include the plural forms. The terms "comprising", "including" and "having" enumerate the stated features, quantities, operations, components, elements and / or combinations thereof that exist, but do not preclude the existence or addition of one or more other features, quantities, operations, components, elements and / or combinations thereof.

[0062] Due to manufacturing techniques and / or tolerances, variations in the shapes shown in the drawings may occur. Therefore, the examples described herein are not limited to the specific shapes shown in the drawings, but include changes in shape that occur during manufacturing.

[0063] The features of the examples described herein can be combined in various ways that will be apparent after understanding the disclosure of the present application. In addition, although the examples described herein have various configurations, other configurations are possible, as will be apparent after understanding the disclosure of the present application.

[0064] Example 1

[0065] Figures 1-11 As described above, a multifunctional hammer provided by the present application will be described in detail.

[0066] The present application provides a multifunctional hammer, which includes a hammer body 1 and a suspension assembly.

[0067] Specifically, in combination with Figure 1 and Figure 2 shown, the suspension assembly includes a ball head 3 that can be connected to a tungsten wire rope. The ball head 3 includes a ball 32 and a hanging rod 4 linked to the ball 32. In actual use, the hanging rod 4 hangs the tungsten wire rope; the ball 32 is located inside the hammer body 1.

[0068] Specifically, the hammer body 1 includes a suspension part 2; the suspension part 2 includes a plurality of limiting legs 5, and the plurality of limiting legs 5 are arranged at intervals around a preset center point; further, a through hole is formed in the suspension part 2, and the hanging rod 4 passes through the through hole and is connected to the ball 32 inside the suspension part 2. Further, the preset center point is preferably the center of the through hole, and the plurality of limiting legs 5 are arranged at intervals around the center of the through hole.

[0069] Specifically, in combination with Figure 2 and Figure 8 shown, the end faces of the plurality of limiting legs 5 facing the preset center point are arc end faces 6, and the arc end faces 6 are tangent to the ball head part 3.

[0070] Further, the multifunctional hammer uses molybdenum as the main material.

[0071] In summary, when the multifunctional weight is not working, the ball head 3 is in a free state, that is, the ball head 3 is not in contact with the arc-shaped end face 6 of the limiting leg 5; when the tungsten wire rope is pulled, the ball head 32 slides relative to the arc-shaped end face 6 and finds the center of gravity, so that the weight body and the tungsten wire rope are coaxial. Further, when the weight body 1 is suspended, the ball head 32 contacts and cooperates with the arc-shaped end face 6 of the limiting leg 5, resulting in relative sliding to find the center of gravity, so that the weight body and the tungsten wire rope are coaxial. During the crystal growth rotation process, the center of gravity is automatically found in real time, which effectively reduces the deviation and shaking of the center of gravity axis of the weight body, and effectively solves the problems of crystal shaking and crystal induction deviation caused by poor point contact and cooperation between the weight body and the tungsten wire rope, greatly improving the quality and quality of single crystal silicon rods. It has greatly reduced the risk of crystal shaking accidents for Czochralski single crystal silicon production enterprises, effectively ensured the production quality of single crystal silicon rods, laid the process guarantee conditions and foundation for the single crystal production industry to develop larger size and heavier single crystal silicon rods, and effectively promoted the development of higher production capacity and higher quality in the single crystal industry.

[0072] In addition, the weight body 1 of the present application is a weight body 1 made of molybdenum. Features of molybdenum weights: Because the use environment is 1500°C, molybdenum material is a refractory metal with a high melting point and high temperature resistance, which can ensure the service life; molybdenum material has no pollution to single crystal silicon during the crystal growth process. In addition, the density of the molybdenum weight is 10.2g / cm3, which is higher than the stainless steel weight of the same specification, and the straightness of the tungsten wire rope is better after hanging.

[0073] In this embodiment, further, there are two limiting legs 5, and the two limiting legs 5 are symmetrically arranged about a preset center point of a circle.

[0074] In this embodiment, further, combined with Figure 1 and Figure 2 As shown, there are four limit legs 5, and the four limit legs 5 are arranged in a circle about the preset center point, that is, the ball head 3 and the limit legs 5 realize the cooperation of four supporting surfaces. Specifically, the existing weights of the same weight and the weight of the present application are rotated under the same conditions, and the axial offset during the rotation is monitored. The monitoring results are as follows: the axial offset of the ordinary molybdenum weight is: 1.83mm; the axial offset of the weight of the present application is: 0.32mm. Therefore, it can be proved that the multifunctional weight provided by the present application effectively solves the problems of crystal shaking and crystal bias, and significantly improves the coaxiality.

[0075] In this embodiment, combined Figure 4 As shown, the weight body 1 also includes a hanging portion 7 connected to the hanging portion 2; the multifunctional weight also includes a hanging assembly 8.

[0076] Specifically, the hanging portion 7 is sequentially formed with a non-working area 13, a rotation area 14 and a working area 15 along the first direction 12; Figure 1As shown, the first direction 12 herein refers to the vertical direction. Specifically, it refers to the direction vertically downward; in combination with Figure 1 As shown in FIG. 0, a non-working area 13, a rotating area 14, and a working area 15 are sequentially formed on the hanging part 7 in the vertically downward direction. Obviously, the non-working area 13, the rotating area 14, and the working area 15 are divisions of the hanging part 7 in terms of spatial position.

[0077] Specifically, in combination with Figure 4 As shown, the hanging component 8 includes a seat body part 9. Preferably, the seat body part 9 is a seat barrel 16, that is, the seat body part 9 has a cylindrical structure.

[0078] Specifically, a crystal pulling hanging part 10 and a material hanging hanging part 11 respectively extend from both ends of the seat body part 9 in opposite directions. According to the Figure 4 placed angle, the crystal pulling hanging part 10 extends from the seat body part 9 in the vertically upward direction, and the material hanging hanging part 11 extends from the seat body part 9 in the vertically downward direction. Further, the crystal pulling hanging part 10 is a crystal pulling rod 17, and the material hanging hanging part 11 is a hanging fork 18. The crystal pulling rod 17 and the hanging fork 18 are respectively arranged on two opposite side walls of the seat barrel 16.

[0079] Specifically, the seat body part 9 is rotatably arranged in the rotating area 14, that is, the seat body part 9 can rotate 360° in the rotating area 14. In this way, one of the crystal pulling hanging part 10 and the material hanging hanging part 11 can be located in the non-working area 13, and the other can be located in the working area.

[0080] Specifically, when the crystal pulling hanging part 10 is located in the working area and the material hanging hanging part 11 is located in the non-working area 13, the crystal pulling part is used for crystal pulling; when the crystal pulling hanging part 10 is located in the non-working area 13 and the material hanging hanging part 11 is located in the working area, the material hanging hanging part 11 is used for hanging the material barrel.

[0081] In the actual use process, first adjust the material hanging hanging part 11 to the working area 15, hang the material barrel on the material hanging hanging part 11, and move it above the crucible (the moving process and structure in this part are not within the protection scope of the application); then pour the material in the material barrel into the crucible (the process and structure in this part are not within the protection scope of the application); finally, adjust the crystal pulling hanging part 10 to the working area, and use the crystal pulling rod 17 to pull crystals from the crucible.

[0082] In summary, in this embodiment, both the material hanging hanging part 11 and the crystal pulling hanging part 10 are provided. According to the requirements of different process segments, it can be directly adjusted and quickly switched through the rotating part, saving working hours; compared with the existing material hanging hanging part 11 and crystal pulling hanging part 10 being separate individuals and needing to be replaced additionally when in use, the structure of this application is simple, easy to operate and cost-saving.

[0083] In this embodiment, further, in combination with Figure 3 as shown, the hanging fork 18 includes a first fork arm 19, a second fork arm 20, and a movable arm 21.

[0084] Specifically, the first fork arm 19 and the second fork arm 20 are spaced apart along the second direction 22 on the seat barrel 16, such that a movable space 23 is defined between the first fork arm 19 and the second fork arm 20; the second direction 22 herein, in combination with Figure 7 as shown, refers to the horizontal direction, that is, the first fork arm 19 and the second fork arm 20 are spaced apart along the horizontal direction on the seat barrel 16.

[0085] Specifically, mounting grooves 24 extending along the first direction 12 are formed in the opposite side walls 25 of the first fork arm 19 and the second fork arm 20; in combination with Figure 4 and Figure 5 as shown, mounting grooves 24 are formed on the side wall 25 of the first fork arm 19 facing the second fork arm 20 and on the side wall 25 of the second fork arm 20 facing the first fork arm 19, and the mounting grooves 24 extend in the vertical direction.

[0086] Specifically, the first end of the movable arm 21 is rotatably disposed in one of the mounting grooves 24 on the first fork arm 19 or the mounting grooves 24 on the second fork arm 20, and the other end is movably disposed in the other, such that the movable arm 21 can be opened or closed; further, the first end of the movable arm 21 is rotatably disposed in the mounting groove 24 on the first fork arm 19, and the second end of the movable arm 21 can be opened toward the movable space 23.

[0087] During actual use, when hanging the material cylinder, the collar on the material cylinder moves toward the movable arm 21, and pushes open the movable arm 21 to make the movable arm 21 open toward the inside of the movable space 23, then the collar is hung on the movable arm 21, and finally under the gravity of the material cylinder, the movable arm 21 closes toward the outside of the movable space 23 and locks on the side wall 25 of the mounting groove 24.

[0088] In summary, when hanging the material cylinder, no additional components are required. The movable arm 21 adopts a rotatable manner, and finally can achieve self-locking for the material cylinder, with a simple structure and convenient operation.

[0089] In this embodiment, in combination with Figure 1 as shown, the hanging portion 7 includes a first connecting arm 26 and a second connecting arm 27; the first connecting arm 26 and the second connecting arm 27 are arranged at intervals along the second direction 22, such that a receiving space 28 is formed between the first connecting arm 26 and the second connecting arm 27, and the non-working area 13, the rotating area 14, and the working area 15 are formed in the receiving space 28 along the first direction 12.

[0090] Specifically, the first connecting arm 26 and the second connecting arm 27 are in a plate-like structure, and the two are arranged at intervals along the second direction 22. The accommodating space 28 enclosed between the first connecting arm 26 and the second connecting arm 27 is used to place the hanging component 8.

[0091] In this embodiment, as shown in Figure 1 the hanging component 8 further includes a connecting piece 29; the connecting piece 29 inserts the seat barrel 16 in the rotating area 14 into the weight body, and the seat barrel 16 can rotate around the connecting piece 29 so that the seat barrel 16 is rotatably arranged on the hanging part 7.

[0092] Specifically, as shown in Figure 1 the connecting piece 29 includes a pin 30 and a nut 31; the pin 30 sequentially passes through the first connecting arm 26, the seat barrel 16, and the second connecting arm 27 along the second direction 22. The nut 31 locks the part of the pin 30 passing through the second connecting part to the second connecting arm 27.

[0093] Furthermore, a rotating hole is formed in the seat barrel 16, and the rotating hole extends along the first direction 12. The pin 30 sequentially passes through the first connecting arm 26, the rotating hole, and the second connecting arm 27 along the second direction 22.

[0094] Furthermore, the rotating hole and the seat barrel 16 are connected in a clearance fit manner.

[0095] Furthermore, the nut 31 only locks the pin 30 on the second connecting arm, but the seat barrel 16 is not locked on the pin 30, and there is a gap between the seat barrel 16 and the first connecting arm and the second connecting arm; when the weight body 1 rotates, the seat barrel 16 can move slightly in the second direction 22 on the pin 30, so as to ensure that the material barrel and the weight body 1 are coaxial.

[0096] Embodiment 2

[0097] The present application also provides a crystal pulling device, including the above-mentioned multifunctional weight. Therefore, it has all the beneficial effects of the above-mentioned multifunctional weight, and will not be specifically elaborated here.

[0098] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some 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 multifunctional weight, characterized in that: It includes a heavy hammer body and a hanging assembly; The hanging assembly includes a ball head that can be connected to a tungsten wire rope; the weight body includes a hanging part; The hanging part includes a plurality of position-limiting legs, and the plurality of position-limiting legs are arranged at intervals around a preset center point; The end surfaces of the plurality of limit legs facing the preset center point are arc-shaped end surfaces, and the arc-shaped end surfaces are tangent to the ball head; When the tungsten wire rope is pulled, the ball head and the arc-shaped end surface slide relative to each other and find the center of gravity, so that the weight body and the tungsten wire rope are coaxial.

2. The multifunctional weight according to claim 1, characterized in that: There are two limit legs, and the two limit legs are symmetrically arranged about the preset center point of the circle.

3. The multifunctional weight according to claim 1, characterized in that: There are four limiting legs, and the four limiting legs are arranged in a circle about the preset center point.

4. The multifunctional weight according to claim 1, characterized in that: The weight body also includes a hanging part connected to the hanging part; the multifunctional weight also includes a hanging assembly; The hanging assembly comprises a seat body; two ends of the seat body are respectively extended with a crystal pulling hanging part and a material hanging hanging part in opposite directions; The hanging portion is sequentially formed with a non-working area, a rotation area and a working area along a first direction; the seat body is rotatably arranged in the rotation area, so that one of the crystal pulling hanging portion and the hanging material hanging portion can be located in the non-working area, and the other is located in the working area; When the crystal pulling hanging part is located in the working area and the material hanging hanging part is located in the non-working area, the crystal pulling part is used for crystal pulling; when the crystal pulling hanging part is located in the non-working area and the material hanging hanging part is located in the working area, the material hanging hanging part is used for hanging the barrel.

5. The multifunctional weight according to claim 4, characterized in that: The seat body is a seat barrel, the crystal pulling hanging part is a crystal pulling rod, and the hanging material hanging part is a hanging fork; The crystal pulling rod and the hanging fork are respectively arranged on two opposite side walls of the seat barrel; The seat barrel is rotatably disposed on the hanging portion so that one of the crystal pulling rod and the hanging fork can be located in the non-working area and the other is located in the working area.

6. The multifunctional weight according to claim 5, characterized in that: The hook fork comprises a first fork arm, a second fork arm and a movable arm; The first fork arm and the second fork arm are spaced apart from each other in the seat barrel along the second direction, so that a movable space is enclosed between the first fork arm and the second fork arm; The opposite side walls of the first fork arm and the second fork arm are provided with a mounting groove extending along the first direction; The first end of the movable arm is rotatably arranged in one of the mounting slots on the first fork arm or the second fork arm, and the other end is movably arranged in the other one, so that the movable arm can be opened or closed.

7. The multifunctional weight according to claim 6, characterized in that: The hanging part includes a first connecting arm and a second connecting arm; The first connecting arm and the second connecting arm are arranged at intervals along the second direction, so that an accommodation space is formed between the first connecting arm and the second connecting arm, and the non-working area, the rotation area and the working area are formed in the accommodation space along the first direction.

8. The multifunctional weight according to claim 7, characterized in that: The hook assembly also includes a connecting piece; The connecting piece inserts the seat bucket to the heavy hammer body in the rotating area, and the seat bucket can rotate around the connecting piece so that the seat bucket is rotatably arranged on the hanging part.

9. The multifunctional weight according to claim 8, characterized in that: The connecting piece includes a latch and a nut; The latch passes through the first connecting arm, the seat bucket and the second connecting arm in sequence along the second direction; The nut locks the portion of the pin passing through the second connecting arm to the second connecting arm.

10. A crystal pulling device, characterized in that: A multifunctional weight comprising any one of claims 1-9.

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