Split mounting type high-temperature-resistant graphite tray capable of preventing metal piece from being fixed

Abstract

The utility model relates to the field of machinery, in particular to a graphite tray technology. The assembled high-temperature-resistant graphite tray comprises a graphite tray body, a groove is formed in the upper end face of the graphite tray body, and an inner threaded hole is formed in the middle of the groove. An arc-shaped groove with the arc-shaped angle ranging from 120 degrees to 240 degrees is vertically formed in the inner side of the inner threaded hole. A thread is arranged in the arc-shaped groove to form a half screw hole; and the depth of the half screw hole is 1 / 2-3 / 4 of the thickness of the graphite tray. The graphite tray and the matched graphite supporting rod are assembled through threaded connection, the threaded connection position of the graphite tray and the graphite supporting rod is vertically provided with the screw hole, the graphite bolt is screwed into the screw hole to clamp the graphite tray and the graphite supporting rod to achieve fixation, and the problem that a metal piece cannot be used in a high-temperature environment is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical field, concretely relates to a graphite tray technology. BACKGROUND

[0002] The graphite boat is a container made of high-purity graphite, which has high-temperature resistance and chemical stability. The main use of high-purity graphite boat is to contain and carry substances in high-temperature environment, especially in the fields of high-temperature reaction, metal smelting, semiconductor manufacturing and chemical experiments. Its high purity and high-temperature resistance make it an important tool in these application fields.

[0003] A graphite boat is composed of a container made of graphite and a gas path interface connected to introduce protective gas. Because the size and weight of the workpiece to be processed are different, multiple containers with different carrying capacities need to be prepared, which causes the problem of high production cost.

[0004] One solution is to combine graphite trays and graphite support rods into a graphite boat by assembling. Different carrying capacity requirements can be solved by replacing graphite trays of different sizes. However, the graphite boat assembled by assembling has the problem of not being firmly connected. The graphite boat requires a load of more than 1500 kg, so fasteners need to be used to fix the graphite tray and the graphite support rod. However, the graphite tray is in a high-temperature environment, and existing metal parts cannot be used in a high-temperature environment. SUMMARY

[0005] The purpose of the utility model is to provide an assembled high-temperature-resistant graphite tray that avoids metal fixation to solve at least one of the above technical problems.

[0006] The technical problem solved by the utility model can be solved by using the following technical solutions:

[0007] The assembled high-temperature-resistant graphite tray that avoids metal fixation includes a graphite tray. The upper end face of the graphite tray is provided with a groove. The middle part of the groove is provided with an internal thread hole.

[0008] The inner side of the internal thread hole is vertically provided with an arc-shaped groove with an arc angle of 185-240 degrees.

[0009] The arc-shaped groove is provided with a thread, forming a half-side screw hole.

[0010] The depth of the half-side screw hole is 1 / 2-3 / 4 of the thickness of the graphite tray.

[0011] It also includes a graphite bolt that is screwed into the half-side screw hole.

[0012] In the prior design, the graphite tray and the graphite supporting rod are assembled by screwing, and in actual use, the inner side of the inner threaded hole of the graphite tray is provided with one half of the screw hole, and the outer side of the outer threaded hole of the graphite supporting rod is provided with the other half of the screw hole.

[0013] In the utility model, when the graphite tray and the graphite supporting rod are in the screwed state, a screw hole is vertically arranged at the threaded connection of the graphite tray and the graphite supporting rod, one half of the screw hole is located at the inner side of the inner threaded hole of the graphite tray, and the other half of the screw hole is located at the outer side of the outer threaded hole of the graphite supporting rod, wherein the half arranged on the graphite tray is larger than the half arranged on the graphite supporting rod, when the graphite tray and the graphite supporting rod are in the screwed state, the screw holes of the two halves are combined into a complete screw hole, a high-temperature-resistant graphite bolt is screwed into the screw hole, and the graphite tray and the graphite supporting rod are clamped, thereby avoiding the use of metal parts to fix the assembled structure of the graphite tray and the graphite supporting rod, and the beneficial effects are as described above.

[0014] The graphite tray, the graphite supporting rod and the graphite bolt all adopt the same graphite material with the same expansion coefficient, so that the tray is not broken due to different expansion systems in high-temperature use.

[0015] The depth of the screw hole of the half is 1 / 2-3 / 4 of the thickness of the graphite tray, and the beneficial effect is that the screw hole depth can leave a recess space above the screw hole after the graphite bolt is screwed into the screw hole, high-temperature-resistant glue is injected into the recess space, the graphite bolt is prevented from loosening, and the fixing effect of the assembled structure is further enhanced.

[0016] In the above design, the arc angle of the arc-shaped groove is 185-240 degrees, so that the graphite bolt can be independently fixed in the arc-shaped groove, and the edge of the graphite bolt is clamped to the graphite supporting rod.

[0017] Further, the groove bottom is further provided with a slant hole, one opening of the slant hole is arranged at the groove bottom, and the other opening is arranged at the inner side of the inner threaded hole.

[0018] The opening size at the groove bottom is larger than the opening size at the inner side of the inner threaded hole.

[0019] In the above design, the slant hole arranged at the groove bottom is part of the fixing structure, and the other part is arranged on the graphite supporting rod, another slant hole is adapted on the graphite supporting rod, when the graphite tray and the graphite supporting rod are in the screwed state, the slant hole on the graphite tray and the slant hole on the graphite supporting rod are combined into a complete slant hole, a graphite pin is inserted into the slant hole, and the graphite tray and the graphite supporting rod can be clamped, so that the fixing is realized.

[0020] Further, the radius of the arc-shaped groove is 6-8 mm.

[0021] In the design, the radius of the arc-shaped groove is 6-8mm, which is suitable for the graphite bolt to resist the shearing force of the graphite tray and the graphite support rod, and the graphite bolt is clamped with the graphite tray and the graphite support rod.

[0022] Further, an annular groove is arranged on the lower end surface of the graphite tray.

[0023] The bottom of the annular groove is a circular arc with a radius of 5-6mm.

[0024] The annular groove comprises two side edges.

[0025] One side edge of the annular groove is parallel to the side edge of the tray with a distance of 10-15mm from the side edge of the tray.

[0026] The other side edge of the annular groove is directed to the center of the tray with an angle of 40-50 degrees to the lower end surface of the graphite tray.

[0027] The depth of the annular groove is 12.5-13.5mm.

[0028] In the design, the annular groove arranged on the lower end surface of the graphite tray is used for the tool to lift the graphite tray to be hooked in the annular groove to prevent falling during the carrying process, and the side edge with an angle of 40-50 degrees to the lower end surface of the graphite tray is used to guide the tool to slide along the side edge to the bottom of the annular groove.

[0029] Further, the upper end surface of the graphite tray is provided with a grid-shaped v-shaped groove for flow guiding, the v-shaped groove is spaced by 6-12mm, and the depth is 4-6mm.

[0030] In the design, the v-shaped groove arranged on the upper end surface of the graphite tray is used to guide the protective gas to be uniformly dispersed and better cover the workpiece.

[0031] Further, the graphite tray and the graphite bolt are made of graphite materials with the same expansion coefficient.

[0032] In the design, the graphite tray and the graphite bolt are made of graphite materials with the same expansion coefficient, which can prevent the graphite tray from being broken due to different expansion systems during the heating process.

[0033] The graphite tray and the graphite support rod are assembled by screw connection, and when the graphite tray and the graphite support rod are in the tightened state, a threaded hole is vertically arranged at the threaded connection position of the graphite tray and the graphite support rod, a graphite bolt is screwed into the threaded hole, the graphite tray and the graphite support rod are clamped, and thus the metal fixing part is avoided.

[0034] Another fixing device is arranged at the threaded connection between the graphite tray and the graphite support rod, and a slant hole is arranged through the threaded connection, and a graphite pin is inserted into the slant hole to clamp the graphite tray and the graphite support rod, so that the metal fixing member is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0035] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor. Among them:

[0036] Figure 1 is a schematic diagram of the present application;

[0037] Figure 2 is a front view of the present application.

[0038] Symbol explanation:

[0039] 1, graphite tray; 2, groove; 3, half screw hole; 4, internal thread hole; 5, annular groove. DETAILED DESCRIPTION

[0040] In order to make the above-mentioned purpose, features and advantages of the present application more apparent and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings of the specification.

[0041] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, but the present application can also be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without departing from the connotation of the present application, therefore the present application is not limited by the specific embodiments disclosed below.

[0042] Secondly, the present application is described in detail in combination with the schematic diagram, and in order to facilitate the description, the sectional view of the device structure will be partially enlarged without general proportion, and the schematic diagram is only an example, which should not limit the scope of protection of the present application. In addition, the three-dimensional spatial dimensions of length, width and depth should be included in actual production.

[0043] Thirdly, the "one embodiment" or "embodiment" referred to herein means that the specific features, structures or characteristics can be included in at least one implementation of the present application. In this specification, "in one embodiment" does not mean the same embodiment, nor does it mean an embodiment that is separate or selectively excluded from other embodiments.

[0044] Refer toFigure 1 、 Figure 2 As shown in the drawings, the assembled high-temperature-resistant graphite tray fixed by avoiding metal parts comprises a graphite tray 1, the upper end surface of the graphite tray 1 is provided with a groove 2, the middle part of the groove 2 is provided with an internal thread hole 4;

[0045] The inner side of the internal thread hole 4 is vertically provided with an arc-shaped groove with an arc angle of 185-240 degrees;

[0046] The arc-shaped groove is provided with a thread, and a half of the screw hole 3 is formed;

[0047] The depth of the half of the screw hole 3 is 1 / 2-3 / 4 of the thickness of the graphite tray 1;

[0048] The graphite tray further comprises a graphite bolt, which is screwed into the half of the screw hole 3.

[0049] In the existing design, the graphite tray 1 and the graphite support rod are assembled through threaded connection, and in actual use, the half of the screw hole is arranged on the inner side of the internal thread hole 4 of the graphite tray 1, and the other half of the screw hole is arranged on the outer side of the external thread of the graphite support rod.

[0050] In the utility model, when the graphite tray 1 and the graphite support rod are in a tightened state, a screw hole is vertically arranged at the threaded connection position of the graphite tray 1 and the graphite support rod, the half of the screw hole is arranged on the inner side of the internal thread of the graphite tray 1, and the other half of the screw hole is arranged on the outer side of the external thread of the graphite support rod, wherein the half arranged on the graphite tray 1 is larger than the half arranged on the graphite support rod, when the graphite tray 1 and the graphite support rod are in the tightened state, the two halves of the screw hole 3 are combined into a complete screw hole, a high-temperature-resistant graphite bolt is screwed into the screw hole, and the graphite tray 1 and the graphite support rod are clamped, so that the assembled structure of the graphite tray and the graphite support rod is fixed by avoiding the use of metal parts, and the beneficial effects are as described above.

[0051] The graphite tray 1, the graphite support rod and the graphite bolt are all made of graphite materials with the same expansion coefficient, so that the tray is not broken due to different expansion systems in high-temperature use.

[0052] The depth of the half of the screw hole 3 is 1 / 2-3 / 4 of the thickness of the graphite tray 1, and the beneficial effect is that the screw hole depth can leave a recess space above the screw hole after the graphite bolt is screwed into the screw hole, high-temperature-resistant glue is injected into the recess space, the graphite bolt is prevented from loosening, and the fixing effect of the assembled structure is further enhanced.

[0053] In the embodiment, the arc angle of the arc-shaped groove is 185-240 degrees, so that the graphite bolt can be independently fixed in the arc-shaped groove, and the edge of the graphite bolt is clamped to the graphite support rod.

[0054] Further, the bottom of the groove is provided with a slant hole, one opening of which is at the bottom of the groove, and the other opening is at the inner side of the inner threaded hole 4.

[0055] The opening size at the bottom of the groove is larger than that at the inner side of the inner threaded hole 4.

[0056] In this embodiment, the slant hole provided at the bottom of the groove is part of the fixed structure, and the other part is provided on the graphite support rod, and another slant hole is adapted on the graphite support rod. When the graphite tray 1 and the graphite support rod are in the tightened state, the slant hole on the graphite tray 1 and the slant hole on the graphite support rod merge into a complete slant hole, and a graphite pin is inserted into the slant hole, which can play the role of clamping the graphite tray 1 and the graphite support rod, thereby achieving fixation.

[0057] Further, the radius of the arc-shaped groove is 6-8 mm.

[0058] In this embodiment, the radius of the arc-shaped groove is 6-8 mm, which is suitable for the graphite bolt to resist the shearing force of the graphite tray 1 and the graphite support rod, so that the graphite bolt clamps the graphite tray 1 and the graphite support rod.

[0059] Referring to Figure 2 , the lower end surface of the graphite tray 1 is provided with an annular groove 5;

[0060] The bottom of the annular groove 5 is a circular arc with a radius of 5-6 mm;

[0061] The annular groove 5 includes two side edges;

[0062] One side edge of the annular groove 5 towards the tray edge is parallel to the side edge of the tray with a distance of 10-15 mm from the side edge of the tray;

[0063] The other side edge of the annular groove 5 towards the tray axis forms an angle of 40-50 degrees with the lower end surface of the graphite tray 1;

[0064] The depth of the annular groove 5 is 12.5-13.5 mm.

[0065] In this embodiment, the annular groove 5 provided on the lower end surface of the graphite tray 1 is used for the tool for lifting the graphite tray 1 to be hooked in the annular groove 5 to prevent falling during handling; and the side edge of the annular groove 5 forming an angle of 40-50 degrees with the lower end surface of the graphite tray 1 is used to guide the tool to slide along the side edge into the bottom of the annular groove 5.

[0066] Referring to Figure 1 , the upper end surface of the graphite tray 1 is provided with a grid-shaped v-shaped groove for flow guide, the v-shaped groove is spaced by 6-12 mm, and the depth is 4-6 mm.

[0067] In the embodiment, the V-shaped groove arranged on the upper end surface of the graphite tray 1 is used to guide the uniform dispersion of the protective gas and better cover the workpiece.

[0068] Further, the graphite tray 1 and the graphite bolt are made of graphite materials with the same expansion coefficient.

[0069] In the embodiment, the graphite tray 1 and the graphite bolt are made of graphite materials with the same expansion coefficient, which can prevent the graphite tray 1 from being broken due to different expansion systems during the heating process.

[0070] In addition, in order to provide a brief description of the exemplary embodiments, all the features of the actual embodiments can not be described, those features which are not related to the currently considered best mode of carrying out the present application or those features which are not related to the implementation of the present application.

[0071] It should be understood that, in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions can be made. Such development efforts might be complex and time-consuming, but would nevertheless be a routine undertaking for those of ordinary skill in the art having the benefit of this disclosure, without undue experimentation.

[0072] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and not limit the present application. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced by equivalent ones without departing from the spirit and scope of the technical solutions of the present application, and all should be included in the scope of the claims of the present application.

Claims

1. A modular, high-temperature resistant graphite tray that avoids metal parts fixing, comprising a graphite tray, characterized in that: The graphite tray has a groove on its upper surface, and an internal threaded hole in the middle of the groove. An arc-shaped groove with an arc angle of 185 to 240 degrees is vertically provided on the inner side of the internal threaded hole; The arc-shaped groove is provided with threads to form a threaded hole on one side; The depth of the screw hole on one side is 1 / 2 to 3 / 4 of the thickness of the graphite tray; It also includes a graphite bolt, which is screwed into the screw hole on one side.

2. The assembled high-temperature resistant graphite tray for avoiding the fixing of metal parts according to claim 1, characterized in that, A slanted hole is also provided at the bottom of the groove, with one opening at the bottom of the groove and the other opening inside the internal threaded hole; The opening size at the bottom of the groove is larger than the opening size inside the internal threaded hole.

3. The assembled high-temperature resistant graphite tray for avoiding the fixing of metal parts according to claim 1, characterized in that, The radius of the arc-shaped groove is 6 to 8 mm.

4. The assembled high-temperature resistant graphite tray for avoiding the fixing of metal parts according to claim 1, characterized in that, A ring-shaped groove is provided on the lower end face of the graphite tray; The bottom of the annular groove is an arc with a radius of 5 to 6 mm; The annular groove includes two side edges; The annular groove has one side facing the edge of the pallet parallel to the side of the pallet, and is 10-15mm away from the side of the pallet; The other side of the annular groove faces the center of the tray axis and forms an angle of 40 to 50 degrees with the lower end face of the graphite tray; The depth of the annular groove is 12.5–13.5 mm.

5. The assembled high-temperature resistant graphite tray for avoiding the fixing of metal parts according to claim 1, characterized in that, The upper surface of the graphite tray is provided with grid-like V-shaped grooves for guiding flow. The V-shaped grooves are spaced 6 to 12 mm apart and have a depth of 4 to 6 mm.

6. The assembled high-temperature resistant graphite tray for avoiding the fixing of metal parts according to claim 1, characterized in that, The graphite tray and graphite bolts are both made of graphite material with the same coefficient of expansion.

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