Hammerhead connector structure for single crystal growth

Abstract

The utility model discloses a hammerhead interface structure for single crystal growth, which comprises a rope sleeve, a connecting piece, a first lantern ring and a second lantern ring, the rope sleeve is sleeved at the lower end of a steel wire rope, the connecting piece is connected at the lower end of the rope sleeve, the first lantern ring is hung on the connecting piece, the second lantern ring is movably hung on the first lantern ring, and a hammerhead is hung on the second lantern ring through a lug plate. The second lantern ring is hung below the first lantern ring, and the position of the second lantern ring is automatically adjusted under the dead weight of the hammer head, so that the hammer head has good plumb performance.

Description

Technical Field

[0001] The utility model relates to the technical field of CZ method single crystal growth equipment, in particular to a hammer head interface structure for CZ method single crystal growth. Background Art

[0002] The CZ (Czochralsk) method stands for the direct-pull single crystal manufacturing method. It is a common method for preparing single crystal silicon. The basic principle is to put the polycrystalline silicon block raw material into a quartz crucible, heat and melt it in a single crystal furnace, and then immerse a rod-shaped crystal seed (called seed crystal) with a smaller diameter into the melt. At a specific temperature, the silicon atoms in the solution will form regular crystals at the solid-liquid interface along the silicon atomic arrangement structure of the seed crystal to form a single crystal.

[0003] In the CZ method of single crystal growth, the hammer is the bridge between the seed crystal and the wire rope. The plumbness of the hammer after the connection with the wire rope will directly affect the accuracy of the crystal orientation of the growing single crystal. At present, the wire rope is connected to the hammer through a metal sleeve. The metal sleeve may be slightly bent during the disassembly and operation process, which will cause the molybdenum hammer to be skewed after connection, thus having an adverse effect on the growth of the single crystal. Utility Model Content

[0004] The embodiment of the present application provides a hammer head interface structure for single crystal growth, which is used to solve the problem that when a metal sleeve is directly connected to the hammer head, the deformation of the metal sleeve will affect the plumbness of the hammer head, thereby ensuring the accuracy of the crystal orientation of the growing single crystal.

[0005] The embodiment of the present application provides a hammer head interface structure for single crystal growth, including:

[0006] A rope loop, the rope loop being sleeved on the lower end of the steel wire rope;

[0007] A connecting piece, the connecting piece is connected to the lower end of the rope loop;

[0008] a first ring, the first ring being hung on the connecting member;

[0009] A second ring, wherein the second ring is hung on the first ring, and the hammer head is hung on the second ring through an ear plate.

[0010] The beneficial effect of the above embodiment is that by hanging the second ring below the first ring, the second ring automatically adjusts its position under the dead weight of the hammer head, so that the hammer head has good plumbness.

[0011] Based on the above embodiments, the embodiments of the present application may also be improved as follows:

[0012] In one embodiment of the present application, it further comprises: a first positioning member, wherein the lower end of the rope loop is inserted into a first positioning slot formed at the upper end of the connecting member, and the first positioning member connects the rope loop to the connecting member. Beneficial effect of this step: the connection stability is improved through the sleeve structure.

[0013] In one embodiment of the present application: it also includes: a second positioning member, the connecting member includes: a left half sleeve and a right half sleeve, the left half sleeve and the right half sleeve are provided with a second positioning groove with a matching shape corresponding to the first sleeve ring, the second positioning member is below the second positioning groove, and the second positioning member connects the left half sleeve and the right half sleeve into a whole. The beneficial effect of this step: by designing the connecting member as a two-half detachable structure, it is convenient to connect the connecting member to the rope loop and the first sleeve ring.

[0014] In one embodiment of the present application: the first positioning member and the second positioning member both adopt a bolt and nut connection structure. Beneficial effects of this step: the bolt and nut connection structure is simple and low in cost.

[0015] In one embodiment of the present application: the first ring and the second ring are both circular in cross section. Beneficial effect of this step: the circular structure makes it easy for the hammer head to automatically adjust its position. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the specific implementation or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0017] Figure 1 It is a schematic diagram of the structure of the hammer head interface structure for single crystal growth;

[0018] Figure 2 is a structural schematic diagram of a connecting piece;

[0019] Figure 3 for Figure 2 Section view along AA.

[0020] Among them, 1 rope loop, 101 plug-in terminals;

[0021] 2 connecting piece, 201 first positioning groove, 202 left half casing, 203 right half casing, 204 second positioning groove;

[0022] 3 first ring, 4 second ring, 5 first positioning piece, 6 second positioning piece. DETAILED DESCRIPTION

[0023] In this application, unless otherwise clearly specified and limited, the terms in this application should be understood in a broad sense, such as connection can be fixed connection, detachable connection or integration, direct connection or indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of different terms in this utility model can be understood according to specific circumstances, and the scope of the specific meaning should be limited to realizing the functions of this application.

[0024] like Figure 1-3 As shown, a hammer head interface structure for single crystal growth includes: a rope loop 1, a connecting piece 2, a first ring 3, and a second ring 4. The rope loop 1 is sleeved on the lower end of the wire rope, the connecting piece 2 is connected to the lower end of the rope loop 1, the first ring 3 is hung on the connecting piece 2, the second ring 4 is movably hung on the first ring 3, and the hammer head is hung on the second ring 4 through an ear plate.

[0025] In some embodiments of the present application, Figure 1 As shown, the second ring 4 is hung on the first ring 3 , which means that the second ring 4 passes through the inner ring of the first ring 3 .

[0026] In some embodiments of the present application, Figure 1 , 3 As shown, the hammer head interface structure also includes: a first positioning member 5, the lower end of the rope loop 1 is inserted into the first positioning groove 201 opened at the upper end of the connecting member 2, and the first positioning member 5 connects the rope loop 1 to the connecting member 2, and improves the stability of the connection through the sleeve structure.

[0027] In some embodiments of the present application, Figure 1 , 3 As shown, the rope loop 1 is a metal loop for a steel wire rope, and a plug-in end 101 is disposed at the lower end of the rope loop 1. The plug-in end 101 is cylindrical, and the first positioning groove 201 is a cylindrical groove. The plug-in end 101 is inserted into the first positioning groove 201. This plug-in structure makes it easy to assemble the connector 2 to the rope loop 1.

[0028] In some embodiments of the present application, Figure 1 , 3 As shown, the hammer head interface structure also includes: a second positioning member 6, the connecting member 2 includes: a left half sleeve 202 and a right half sleeve 203, the left half sleeve 202 and the right half sleeve 203 are provided with a second positioning groove 204 corresponding to the first ring 3, and the second positioning member 6 is below the second positioning groove 204. The second positioning member 6 connects the left half sleeve 202 and the right half sleeve 203 into a whole. By designing the connecting member 2 as a two-half detachable structure, it is convenient to connect the connecting member 2 with the rope loop 1 and the first ring 3.

[0029] In some embodiments of the present application, the connecting member 2 is divided into two halves along the central axis, so that the left half casing 202 and the right half casing 203 form a mirror-symmetrical structure.

[0030] In some embodiments of the present application, Figure 1 , 3 As shown, the first positioning member 5 and the second positioning member 6 both adopt a bolt and nut connection structure, which has a simple structure and low cost.

[0031] In some embodiments of the present application, Figure 3 As shown, through holes are opened at the upper and lower ends of the connecting piece 2 corresponding to the bolts, and the threaded end of the bolt passes through the left half sleeve 202, the plug-in end 101, and the right half sleeve 203 at the upper end and is connected to the nut, and the threaded end of the bolt passes through the left half sleeve 202 and the right half sleeve 203 at the lower end and is connected to the nut, and the connecting piece 2 is connected into a stable structure by locking up and down.

[0032] In some embodiments of the present application, the cross-sections of the first ring 3 and the second ring 4 are both circular, and the circular structure facilitates the hammer head to automatically adjust its position.

[0033] In some embodiments of the present application, the overall structure of the first ring 3 and the second ring 4 is a circular ring. The second ring 4 is a disconnected structure before installation. The ear plate is provided with a matching through hole corresponding to the second ring 4. The second ring 4 passes through the through holes of the first ring 3 and the ear plate to connect the disconnected parts. Specifically, the disconnected parts of the second ring 4 can be connected by welding or gluing.

[0034] This hammer head interface structure for single crystal growth is achieved by hanging the second ring 4 under the first ring 3. The second ring 4 automatically adjusts its position under the weight of the hammer head, so that the hammer head has good plumbness, and a split connector 2 is designed between the first ring 3 and the rope loop 1, which makes it easy to connect the first ring 3 to the rope loop 1, making this interface structure easy to assemble.

[0035] The above are only embodiments of the utility model. The common sense such as the known specific structures and characteristics in the scheme is not described in detail here. The ordinary technicians in the relevant field are aware of all the common technical knowledge in the technical field to which the utility model belongs before the application date or priority date, can obtain all the existing technologies in the field, and have the ability to apply the conventional experimental means before that date. The ordinary technicians in the relevant field can improve and implement the scheme in combination with their own abilities under the enlightenment given by this application. Some typical known structures or known methods should not become obstacles for the ordinary technicians in the relevant field to implement this application. It should be pointed out that for the technicians in this field, without departing from the structure of the utility model, several deformations and improvements can be made, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent.

Claims

1. A hammer head interface structure for single crystal growth, characterized in that: include: A rope loop, the rope loop being sleeved on the lower end of the steel wire rope; A connecting piece, the connecting piece is connected to the lower end of the rope loop; a first ring, the first ring being hung on the connecting member; The second ring is movably connected to the first ring, and the hammer head is connected to the second ring through an ear plate.

2. The hammer head interface structure for single crystal growth according to claim 1, characterized in that: Also includes: A first positioning member, wherein the lower end of the rope loop is inserted into a first positioning groove formed at the upper end of the connecting member, and the first positioning member connects the rope loop to the connecting member.

3. The hammer head interface structure for single crystal growth according to claim 2, characterized in that: Also includes: The second positioning member, the connecting member includes: a left half sleeve and a right half sleeve, the left half sleeve and the right half sleeve are provided with second positioning grooves corresponding to the first sleeve ring, and the second positioning member is below the second positioning groove, and the second positioning member connects the left half sleeve and the right half sleeve into a whole.

4. The hammer head interface structure for single crystal growth according to claim 3, characterized in that: The first positioning member and the second positioning member both adopt a bolt and nut connection structure.

5. The hammer head interface structure for single crystal growth according to claim 1, characterized in that: The cross sections of the first ring and the second ring are both circular.

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