WO2017063411A1

WO2017063411A1 - Counterweight for single crystal furnace

Info

Publication number: WO2017063411A1
Application number: PCT/CN2016/089849
Authority: WO
Inventors: 高俊伟; 山海明; 周红珍; 罗乾
Original assignee: 严利容
Priority date: 2015-10-16
Filing date: 2016-07-13
Publication date: 2017-04-20
Also published as: CN205115665U

Abstract

Disclosed is a counterweight (10) for a single crystal furnace, comprising a counterweight body (11), as well as a wire rope connecting part (12) and a seed crystal connecting part (13) disposed on both ends of the counterweight body (11), wherein the wire rope connecting part (12) is provided with a first through hole (121), and the top of the first through hole (121) is provided with a second through hole (122); one end of a wire rope (20) is snapped into the second through hole (122) by means of a snap assembly (30), wherein the snap assembly (30) comprises a snap member (31) and a clamping member (32), the snap member (31) comprises a first inserting portion (311) inserted into the second through hole (122) and a first stopping portion (312), and the snap member (31) is provided with a third through hole (313) in a longitudinal direction; the clamping member (32) comprises a second inserting portion (321) inserted into the third through hole (313) and a second stopping portion (322); one end of the wire rope (20) is clamped in the second inserting portion (321) by means of a mechanical force. In this counterweight structure, at the portion of the wire rope (20) connected to the counterweight (10), the length of the wire rope (20) needing to be inserted into the counterweight (10) is short, and thus the waste caused by cutting off the wire rope due to high temperature aging is reduced, thereby reducing production costs.

Description

Heavy hammer for single crystal furnace

Technical field

The invention relates to the technical field of single crystal furnaces, in particular to a heavy hammer for a single crystal furnace.

Background technique

The single crystal furnace is a device for melting a silicon material in a noble gas environment, using a graphite electric resistance heater, and growing a dislocation-free single crystal by a straight pull method, wherein the weight is a component for connecting the wire rope and the seed crystal, One of the key components of the single crystal furnace.

Referring to FIGS. 1 to 3, in the conventional weight structure, the weight 1 includes a weight body 1c and a wire rope connecting portion 1a and a seed crystal connecting portion 1b which are provided at both ends of the weight body 1c, and the wire rope connecting portion 1a is used for Connected to the wire rope 2, the seed crystal connection portion 1b is used for connection with the seed crystal. Wherein, the wire rope connecting portion 1a includes a first clamping portion 3 fixedly coupled to the weight body 1c and a detachable second clamping portion 4, the first clamping portion 3 and the second clamping portion 4 passing through the threaded locking member 5 Fix the fit and hold the wire rope 2. Specifically, as shown in FIG. 2 and FIG. 3, the first clamping portion 3 is provided with a plurality of threaded holes 3a, at least one pin hole 3b and a groove 3c, and the groove 3c is in a "U" shape. It extends from the center of the end surface of the first clamping portion 3 and extends around the lower side of the pin hole 3b to the end surface of the first clamping portion 3. A plurality of screw holes 4a and a plug 4b are disposed in the second clamping portion 4. As shown in FIGS. 2 to 4, at the time of assembly, the wire rope 2 is first loaded into the groove 3c of the first clamping portion 3, and then the pin 4b of the second clamping portion 4 is directed toward the first clamping portion 3. The latching holes 3b are combined, and finally the threaded retaining members 5 are threaded through the threaded holes 4a of the second clamping portion 4 and the threaded holes 3a of the first clamping portion 3 to engage the first clamping portion 3 and the second clamping member. The holding portion 4 tightens the wire rope 2.

Generally, the temperature in the single crystal furnace is relatively high. Due to the heat conduction of the weight 1, the portion of the wire rope 2 assembled in the weight 1 is aged faster, and it is necessary to cut the wire rope located in the groove 3c of the "U" shape. 2 is reassembling. Since the steel cord 2 (usually containing tungsten material) used in the single crystal furnace is expensive, the length of the steel cord 2 in the "U"-shaped groove 3c is long, and the wire rope 2 cut each time causes a relatively large waste. In addition, since the grown single crystal silicon rod is relatively heavy, after a plurality of lifting of the silicon rod, the threaded impeding member 5 is extremely damaged and needs to be replaced frequently.

Summary of the invention

In view of this, the present invention provides a weight for a single crystal furnace in which the length of the wire rope to be inserted into the weight is small at the connection portion between the wire rope and the weight, and the wire rope is reduced. The amount of wear that is cut due to high temperature aging saves production costs.

In order to achieve the above object, the present invention adopts the following technical solutions:

A heavy hammer for a single crystal furnace, the weight comprising a weight body and a wire rope connection portion and a seed crystal connection portion disposed at two ends of the weight body, the wire rope connection portion for connecting with the wire rope, the seed crystal The connecting portion is configured to be connected to the seed crystal; wherein the wire rope connecting portion is provided with a first through hole in a lateral direction, and a second through hole in a longitudinal direction is formed at a top of the first through hole; One end is engaged in the second through hole through a buckle assembly, and the other end extends from the end surface of the wire rope connecting portion through the second through hole; wherein the buckle assembly includes a snap member and a clamping member, the engaging member including a first insertion portion inserted into the second through hole and a first blocking portion connected to an end of the first insertion portion, the first blocking portion having a lateral dimension larger than the first a diameter of the two through holes, the engaging member defines a third through hole in a longitudinal direction; the clamping member includes a second insertion portion inserted into the third through hole and connected to the end of the second insertion portion Second blocking portion, the second blocking portion Transverse dimension larger than the third diameter of the through-hole, one end of the rope by a mechanical clamping force to the second insertion portion.

Wherein the diameter of the first insertion portion is slightly smaller than the diameter of the second through hole, so that the first insertion portion and the second through hole are closely fitted.

Wherein, the first blocking portion has a cylindrical shape or a spherical shape, and a diameter thereof is larger than a diameter of the second through hole.

The length of the first insertion portion is not less than the length of the second through hole.

Wherein the diameter of the second insertion portion is slightly smaller than the diameter of the third through hole, so that the second insertion portion is closely fitted with the third through hole.

Wherein, the second blocking portion has a cylindrical shape or a spherical shape, and a diameter thereof is larger than a diameter of the third through hole.

The length of the second insertion portion is not less than the length of the third through hole.

Wherein, the wire rope connecting portion is further sleeved with a protective sleeve, wherein the protective sleeve has an annular shape, and an inner diameter thereof is slightly larger than a diameter of the wire rope connecting portion, so that the protective sleeve is closely matched with the wire rope connecting portion. .

Wherein, the height of the protective cover is not less than the height of the wire rope connecting portion.

The sidewall of the protective sleeve defines a slit 401 extending along a length thereof.

Compared with the prior art, the embodiment of the present invention provides a weight for a single crystal furnace in which the length of the wire rope needs to extend into the weight in the connection portion between the wire rope and the weight. Small, reducing the loss of wire rope cutting due to high temperature aging, saving production costs.

DRAWINGS

1 is a schematic structural view of a conventional heavy hammer for a single crystal furnace;

2 is a schematic structural view of a wire rope connecting portion of a conventional weight;

Figure 3 is a plan view of the first clamping portion in Figure 2 in the X direction;

Figure 4 is an exemplary illustration of the loading of the wire rope in the first clamping portion of Figure 3;

5 is a schematic structural view of a weight for a single crystal furnace according to an embodiment of the present invention;

Figure 6 is a schematic structural view of a snap member in an embodiment of the present invention;

Figure 7 is a schematic structural view of a clamping member in an embodiment of the present invention;

8 is a schematic structural view of a protective cover in an embodiment of the present invention;

Figure 9 is a schematic view showing the structure of the wire rope connecting portion in the embodiment of the present invention after assembly.

detailed description

The technical solutions in the embodiments of the present invention are described in detail below with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the present invention, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

Referring to FIGS. 5 to 9, the present embodiment provides a weight for a single crystal furnace, the weight 10 including a weight body 11 and a wire rope connecting portion 12 and a seed crystal connecting portion disposed at both ends of the weight body 11. 13. The wire rope connecting portion 11 is for connection with a wire rope 20 for connection with a seed crystal.

As shown in FIG. 5, the wire rope connecting portion 12 defines a first through hole 121 in a lateral direction, and a second through hole 122 in a longitudinal direction is formed at a top of the first through hole 121. As shown in FIG. 9, one end of the wire rope 20 is engaged in the second through hole 122 through a snap assembly 30, and the other end extends from the end surface of the wire rope connecting portion 11 through the second through hole 122. Out. Wherein the buckle The assembly 30 includes a snap member 31 and a clamping member 32.

Specifically, as shown in FIG. 6, (a) is a cross-sectional view of the engaging member 31, and (b) is a plan view of the engaging member 31. The engaging member 31 includes a first insertion portion 311 inserted into the second through hole 122 and a first blocking portion 312 connected to an end of the first insertion portion 311, and the lateral dimension of the first blocking portion 312 is larger than The diameter of the second through hole 122, the engaging member 31 defines a third through hole 313 in the longitudinal direction. In this embodiment, the first blocking portion 312 has a cylindrical shape with a diameter larger than the diameter of the second through hole 122; of course, in other embodiments, the first blocking portion 312 can also be designed. It is spherical. Further, the diameter of the first insertion portion 311 is slightly smaller than the diameter of the second through hole 122 to closely fit the first insertion portion 311 and the second through hole 122. In this embodiment, the length of the first insertion portion 311 is equal to the length of the second through hole 122, so that the first insertion portion 311 is inserted into the second through hole 122, and the upper end surface thereof and the wire rope connecting portion 11 are The length of the first insertion portion 311 may be greater than the length of the second through hole 122 to insert the first insertion portion 311 into the second pass. After the hole 122, the upper end surface thereof is projected on the end surface of the wire rope connecting portion 11.

Specifically, as shown in FIG. 7, the clamping member 32 includes a second insertion portion 321 inserted into the third through hole 313 and a second blocking portion 322 connected to an end of the second insertion portion 321 The lateral dimension of the second blocking portion 322 is larger than the diameter of the third through hole 313, and one end of the wire rope 20 is clamped in the second insertion portion 321 by mechanical force. In this embodiment, the second blocking portion 322 has a spherical shape with a diameter larger than the diameter of the third through hole 313; of course, in other embodiments, the second blocking portion 322 may also be designed. It is cylindrical. Further, the diameter of the second insertion portion 321 is slightly smaller than the diameter of the third through hole 313 to closely fit the second insertion portion 321 and the third through hole 313. In this embodiment, the length of the second insertion portion 321 is equal to the length of the third through hole 313, so that the second insertion portion 321 is inserted into the third through hole 313, and the upper end surface thereof and the wire rope connecting portion 11 The length of the second insertion portion 321 may be greater than the length of the third through hole 313 to insert the second insertion portion 321 into the third pass. After the hole 313, the upper end surface thereof is projected on the end surface of the wire rope connecting portion 11.

Further, in the embodiment, the wire rope connecting portion 11 is further provided with a protective cover 40, as shown in FIG. 8 and FIG. 9, (a) in FIG. 8 is a front view of the protective cover 40, (b) ) is a top view of the protective cover 40. The protective sleeve 40 has an annular shape with an inner diameter slightly larger than the diameter of the wire rope connecting portion 11 to closely fit the protective sleeve 40 with the wire rope connecting portion 11 , wherein the height of the protective cover 40 Not less than the height of the wire rope connecting portion 11. By arranging the protective cover 40 on the wire rope connecting portion 11, the first through hole 121 in the wire connecting portion 11 is closed, and the single crystal furnace can be reduced. The effect of high temperature on the wire rope 20. Further, a slit 401 extending along a longitudinal direction thereof is defined in a sidewall of the protective sleeve 40. The material of the protective sleeve 40 is a metal material. The protective sleeve 40 has a certain elasticity by providing a slit 401. It can be better assembled or disassembled with the wire rope connecting portion 11.

The weight for the single crystal furnace provided by the above embodiment, when it is required to connect the wire rope, firstly, one end of the wire rope 20 is mechanically clamped into the second insertion portion 321 of the clamping member 32, and then clamped. The member 32 is inserted into the engaging member 31, the engaging member 31 is inserted into the second through hole 122, and finally the protective cover 40 is nested on the wire connecting portion 11. When the wire rope 20 is pulled upward, the wire rope 20 is coupled into the wire rope connecting portion 11 by the clamping member 32 and the engaging member 31. In the weight structure, at the connection portion of the wire rope 20 and the weight, the length of the wire rope 20 that needs to protrude into the weight is small, which reduces the loss of the wire rope 20 due to high temperature aging, and saves production cost. In addition, one end of the wire rope 20 is engaged in the second through hole 122 through the buckle assembly 30, and the buckle assembly 30 includes a plurality of components (clamping member 32, engaging member 31) that are nested with each other, and may also be reduced. The effect of high temperature in a small single crystal furnace on the wire rope 20.

It should be noted that, in this context, relational terms such as first and second are used merely to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply such entities or operations. There is any such actual relationship or order between them. Furthermore, the term "comprises" or "comprises" or "comprises" or any other variations thereof is intended to encompass a non-exclusive inclusion, such that a process, method, article, or device that comprises a plurality of elements includes not only those elements but also Other elements, or elements that are inherent to such a process, method, item, or device. An element that is defined by the phrase "comprising a ..." does not exclude the presence of additional equivalent elements in the process, method, item, or device that comprises the element.

The above description is only a specific embodiment of the present application, and it should be noted that those skilled in the art can also make several improvements and retouchings without departing from the principles of the present application. It should be considered as the scope of protection of this application.

Claims

A heavy hammer for a single crystal furnace, the weight comprising a weight body and a wire rope connection portion and a seed crystal connection portion disposed at two ends of the weight body, the wire rope connection portion for connecting with the wire rope, the seed crystal The connecting portion is configured to be connected to the seed crystal; wherein the wire rope connecting portion is provided with a first through hole in a lateral direction, and a second through hole in a longitudinal direction is formed at a top of the first through hole; One end is engaged in the second through hole through a buckle assembly, and the other end extends from the end surface of the wire rope connecting portion through the second through hole; wherein the buckle assembly includes a snap member and a clamping member, the engaging member including a first insertion portion inserted into the second through hole and a first blocking portion connected to an end of the first insertion portion, the first blocking portion having a lateral dimension larger than the first a diameter of the two through holes, the engaging member defines a third through hole in a longitudinal direction; the clamping member includes a second insertion portion inserted into the third through hole and connected to the end of the second insertion portion Second blocking portion, the second blocking portion Transverse dimension larger than the third diameter of the through-hole, one end of the rope by a mechanical clamping force to the second insertion portion.
The weight for a single crystal furnace according to claim 1, wherein a diameter of the first insertion portion is slightly smaller than a diameter of the second through hole to make the first insertion portion and the second portion The through holes are tightly fitted.
The weight for a single crystal furnace according to claim 2, wherein the first blocking portion has a cylindrical shape or a spherical shape and a diameter larger than a diameter of the second through hole.
The weight for a single crystal furnace according to claim 2, wherein a length of the first insertion portion is not less than a length of the second through hole.
The weight for a single crystal furnace according to claim 1, wherein a diameter of the second insertion portion is slightly smaller than a diameter of the third through hole to make the second insertion portion and the third portion The through holes are tightly fitted.
The weight for a single crystal furnace according to claim 5, wherein the second blocking portion has a cylindrical shape or a spherical shape and a diameter larger than a diameter of the third through hole.
The weight for a single crystal furnace according to claim 5, wherein a length of the second insertion portion is not less than a length of the third through hole.
The weight for a single crystal furnace according to claim 1, wherein the wire rope connecting portion is further provided with a protective sleeve, wherein the protective sleeve has an annular shape, and an inner diameter thereof is slightly larger than a diameter of the wire rope connecting portion. So that the protective sleeve is tightly fitted to the wire rope connection.
A weight for a single crystal furnace according to claim 8, wherein the height of the protective cover is not Less than the height of the wire rope connection.
The weight for a single crystal furnace according to claim 9, wherein a side wall of the protective sleeve has a slit extending along a length thereof.