Air extractor rib plate fixing structure

Abstract

The invention discloses an air extractor rib plate fixing structure, and relates to the technical field of air extractors. The problem that reliable rigid fixing cannot be achieved through a multi-point bolt is solved. The device comprises a shell and a plurality of cavity dividing plates arranged in the shell in parallel at intervals, a plurality of cavity dividing chambers are formed through the cavity dividing plates, the two sides of each cavity dividing plate are connected with a plurality of rib plates distributed longitudinally and transversely respectively, the cavity dividing chambers distributed at intervals are first cavity chambers, the cavity dividing chamber located between every two adjacent first cavity chambers is a second cavity chamber, and the rib plates are arranged in the cavity dividing plates. When the rib plates in the first cavities are cut, each second cavity is completely filled with the fixing pieces, or when the rib plates in the second cavities are cut, each first cavity is completely filled with the fixing pieces, the first cavities or the second cavities can be completely filled with the fixing pieces, under the condition, the fixing pieces cannot move, and when the rib plates are cut, the fixing pieces cannot move. The cutting vibration of the machining cutter cannot affect the fixing piece, and the fixing piece can always keep rigid fixation of the cavity dividing plate so as to ensure smooth proceeding of subsequent machining.

Description

Technical Field

[0001] The invention relates to the technical field of air extractors, and in particular to a rib plate fixing structure of an air extractor. Background Art

[0002] The vacuum pump shell is a thin-walled welded part. The shell material is austenitic stainless steel. It is assembled from an outer shell, a chamber plate, and a rib plate. There are multiple chamber plates, and the multiple chamber plates are arranged in parallel and at intervals in the outer shell to form multiple chambers. The chambers are used to insert the pipe system to achieve heat exchange. Ribs arranged vertically and horizontally are welded on both sides of the chamber plate. Since the stainless steel is deformed by heat during the welding process, the chamber plate and the rib plates thereon are deformed as a whole, causing the size of each chamber to change, and the pipe system cannot be inserted into the cavity. In order to ensure that the pipe system can be inserted into the chamber, it is necessary to remove the excess margin of the rib plate on the chamber plate. At present, most of the excess margins are removed by cutting. However, since the chamber plate is thin, the chamber plate needs to be fixed before cutting to avoid the chamber plate shaking during the cutting process, which makes the cutting work unable to continue.

[0003] In the prior art, multi-point bolts are often used for fixing, that is, multiple bolts are set between the two side walls of each chamber, and the chamber plate is tightened by the bolts. However, due to the influence of the cutting vibration of the machine tool, the bolts become loose under repeated excitation, and reliable rigid fixation cannot be achieved. Summary of the invention

[0004] The purpose of the present invention is to solve the problem that multi-point bolts cannot achieve reliable rigid fixation, and further provide a rib plate fixing structure for an air extractor.

[0005] The technical solution of the present invention is: a rib plate fixing structure of an air extractor, comprising: a housing and a plurality of chamber plates arranged in parallel and spaced in the housing, a plurality of chambers are formed by the plurality of chamber plates, and a plurality of rib plates distributed vertically and horizontally are respectively connected to both sides of each chamber plate;

[0006] The sub-chambers distributed at intervals are first chambers, and the sub-chamber located between two adjacent first chambers is a second chamber. When the ribs in the first chambers are cut, the fixing parts are completely filled in each of the second chambers, or when the ribs in the second chambers are cut, the fixing parts are completely filled in each of the first chambers.

[0007] Furthermore, the fixing member is a low melting point alloy, and the low melting point alloy is melted and then poured into the first cavity or the second cavity.

[0008] Furthermore, it also includes: a supplementary part, which is pre-buried in the first cavity or the second cavity where the low-melting-point alloy is cast, and the low-melting-point alloy surrounds the supplementary part after casting.

[0009] Furthermore, the supplementary piece is a rectangular wooden block.

[0010] Furthermore, the low melting point alloy is a bismuth-tin alloy.

[0011] Furthermore, it also includes: a sealing plate, which seals a side opening of the first chamber or the second chamber having the fixing member.

[0012] Furthermore, the sealing plate is detachably mounted on a first flange of the housing by means of bolts, and the first flange is a flange on the housing used to support the housing on the ground when the sub-chamber is vertically arranged.

[0013] Furthermore, the sealing plates are multiple and spaced apart.

[0014] Furthermore, the sealing plate is a stainless steel plate.

[0015] Compared with the prior art, the present invention has the following effects:

[0016] 1. The vacuum pump rib plate fixing structure provided by the present invention is capable of completely filling the first chamber or the second chamber with the fixing part, in which case the fixing part cannot move. When the rib plate is cut, the cutting vibration of the machining tool will not affect the fixing part, and the fixing part can always maintain the rigid fixation of the chamber plate to ensure smooth subsequent processing.

[0017] 2. The present invention provides an exhaust rib fixing structure, in which the fixing parts are selected from low-melting-point alloys, which are melted and then poured. The low-melting-point alloy can fill every place in the sub-chamber, and its use environment is not limited by its own shape, so it has a wide range of applications and better use effects.

[0018] 3. The vacuum pump rib plate fixing structure provided by the present invention can reduce the usage of low melting point alloy by using supplementary parts, which can reduce the cost and ensure the overall strength to achieve rigid fixation of the chamber plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0020] In the figure: 1. outer shell; 2. chamber plate; 3. chamber; 4. rib plate; 5. fixing part; 6. supplementary part; 7. sealing plate; 8. first flange. DETAILED DESCRIPTION

[0021] Specific implementation method 1: Combination Figure 1To illustrate this embodiment, this embodiment includes a shell 1 and a plurality of chamber plates 2 arranged in parallel and at intervals in the shell 1, a plurality of chambers 3 are formed by the plurality of chamber plates 2, and a plurality of rib plates 4 distributed vertically and horizontally are respectively connected to both sides of each chamber plate 2, the chamber plates 2 are installed in the shell 1 by welding, and the rib plates 4 are installed on the chamber plates 2 by welding, the chambers 3 distributed at intervals are the first chambers, and the chambers 3 located between two adjacent first chambers are the second chambers, when the rib plates 4 in the first chamber are cut, the fixing parts 5 are completely filled in each second chamber, or when the rib plates 4 in the second chamber are cut, the fixing parts 5 are completely filled in each first chamber, it should be noted that in this embodiment, there is no specific restriction on the shape of the shell, as long as it is a thin-walled shell, it is applicable to the above-mentioned fixing structure.

[0022] In the vacuum pump rib plate fixing structure of this embodiment, the fixing part 5 can be completely filled in the first chamber or the second chamber. In this case, the fixing part 5 cannot move. When the rib plate 4 is cut, the cutting vibration of the machining tool will not affect the fixing part 5. The fixing part 5 can always maintain rigid fixation on the chamber plate 2 to ensure smooth subsequent processing.

[0023] Specific implementation method 2: Combination Figure 1 To explain this embodiment, the fixing member 5 of this embodiment can be selected as a low melting point alloy. After the low melting point alloy is melted, it is poured into the first chamber or the second chamber. The low melting point alloy can fill every part of the sub-chamber 3. Its use environment is not limited by its own shape, and its application range is wide, and the use effect is better. Of course, the above description is not restrictive. As an alternative embodiment, the fixing member 5 can also be selected as an iron block with the same shape as the sub-chamber 3, which is inserted into the sub-chamber 3 to rigidly fix the sub-chamber plate 2. Other components and connection relationships are the same as those of the specific embodiment 1.

[0024] Specific implementation method three: Combination Figure 1 To explain this embodiment, this embodiment also includes: a supplementary part 6, which is pre-buried in the first cavity or the second cavity where the low melting point alloy is cast. Specifically, the supplementary part 6 is pre-buried in the corresponding cavity in which the low melting point alloy is cast. The supplementary part 6 can reduce the amount of low melting point alloy used, which can reduce the cost and ensure the overall strength to achieve rigid fixation of the cavity plate 2. Of course, the above description is not restrictive. As an alternative embodiment, the supplementary part 6 can also be omitted and only the low melting point alloy is used for casting. The other components and connection relationships are the same as those of the second specific embodiment.

[0025] Specific implementation method four: Combination Figure 1To illustrate this embodiment, the supplementary member 6 of this embodiment can be selected as a rectangular wooden block, which is light in weight and can withstand the temperature of the low melting point alloy when it melts, and is easy to install. Of course, the above description is not restrictive. As an alternative embodiment, the supplementary member 6 can also be made of other materials such as stone. Other components and connection relationships are the same as those of the specific embodiment three.

[0026] Specific implementation method five: Combination Figure 1 To illustrate this embodiment, the low melting point alloy of this embodiment can be selected as a bismuth-tin alloy, with bismuth accounting for 58% and tin accounting for 42%. Its melting point temperature is generally between 60 and 200°C. Bismuth-tin alloy is widely used and easy to obtain. Of course, the above description is not restrictive. As an alternative embodiment, the low melting point alloy can also be selected from bismuth or tin only. Other components and connection relationships are the same as those of the third embodiment.

[0027] Specific implementation method six: Combination Figure 1 To explain this embodiment, this embodiment further includes: a sealing plate 7, which blocks the opening of one side of the first chamber or the second chamber having the fixing member 5. The sealing plate 7 can block the fixing member 5 and play a role in positioning the fixing member 5, so that the fixing member 5 can be accurately filled in the sub-chamber 3. Of course, the above description is not restrictive. As an alternative embodiment, the sealing plate 7 can also be set at the openings on both sides of the sub-chamber 3. Other components and connection relationships are the same as any one of the specific embodiments 1 to 5.

[0028] Specific implementation method seven: Combination Figure 1 To explain this embodiment, the sealing plate 7 of this embodiment is detachably mounted on the first flange 8 of the housing 1 by bolts. The first flange 8 is a flange on the housing 1 used to support the ground when the sub-chamber 3 is vertically arranged. The sealing plate 7 can be accurately mounted at the opening of the sub-chamber 3 and is easy to disassemble, making it more convenient to use. Of course, the above description is not restrictive. As an alternative embodiment, the sealing plate 7 can also be tightened on the flange of the housing by hydraulic equipment. Other components and connection relationships are the same as those of the specific embodiment 6.

[0029] Specific implementation method eight: Combination Figure 1 In this embodiment, the sealing plates 7 of this embodiment are arranged at intervals, and the number of the sealing plates 7 is the same as the number of the sub-chambers 3. All the sealing plates 7 can be used without waste. Of course, the above description is not restrictive. As an alternative embodiment, the sealing plate 7 can also be a whole plate. Other components and connection relationships are the same as those of the seventh embodiment.

[0030] Specific implementation method nine: Combination Figure 1To explain this embodiment, the sealing plate 7 of this embodiment is made of stainless steel plate. Stainless steel plate can still maintain good mechanical and physical properties in high or low temperature environments, is not easy to deform or break, and is suitable for applications under various extreme temperature conditions. It has high strength and hardness, can withstand large loads and pressures, and is suitable for occasions that need to withstand heavy loads and impacts. Of course, the above description is not restrictive. As an alternative embodiment, the sealing plate 7 can also be made of iron plate or copper plate. Other components and connection relationships are the same as those of the specific embodiment six.

[0031] Taking the cutting of the rib plate 4 in the first chamber as an example, the fixing method of this embodiment is as follows:

[0032] 1. Install the sealing plate 7 on the flange of the housing 1 by means of bolts, and the sealing plate 7 is sealed at the opening of the second chamber;

[0033] 2. Pour a portion of low melting point alloy into the second chamber, and put the rectangular wood block into the chamber after the low melting point alloy cools down;

[0034] 3. Continue pouring the low melting point alloy until the second chamber is completely filled;

[0035] 4. After the low melting point alloy is cooled, use a cutting tool to cut the rib plate 4 in the first chamber;

[0036] 5. After cutting, use boiling water to pour low melting point alloy to melt it for repeated use;

[0037] 6. Repeat the above steps to cut the rib plate 4 in the second chamber.

[0038] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A rib plate fixing structure for an air extractor, comprising: A shell (1) and a plurality of cavity plates (2) arranged in parallel and spaced apart in the shell (1), a plurality of cavity plates (2) forming a plurality of cavity chambers (3), and a plurality of rib plates (4) distributed vertically and horizontally are respectively connected to two sides of each cavity plate (2); It is characterized in that the sub-chambers (3) distributed at intervals are first chambers, and the sub-chamber (3) located between two adjacent first chambers is a second chamber, and when the rib plate (4) in the first chamber is cut, the fixing member (5) is completely filled in each second chamber, or when the rib plate (4) in the second chamber is cut, the fixing member (5) is completely filled in each first chamber.

2. The rib plate fixing structure of the air extractor according to claim 1, characterized in that: The fixing member (5) is a low melting point alloy, and the low melting point alloy is melted and poured into the first cavity or the second cavity.

3. The rib plate fixing structure of the air extractor according to claim 2, characterized in that: Also includes: The supplementary component (6) is pre-buried in the first cavity or the second cavity where the low-melting-point alloy is cast, and the low-melting-point alloy surrounds the supplementary component (6) after casting.

4. The rib plate fixing structure of the air extractor according to claim 3, characterized in that: The supplementary piece (6) is a rectangular wooden block.

5. The rib plate fixing structure of the air extractor according to claim 3, characterized in that: The low melting point alloy is a bismuth-tin alloy.

6. A rib plate fixing structure for an air extractor according to any one of claims 1 to 5, characterized in that: Also includes: A sealing plate (7) is used to seal a side opening of the first chamber or the second chamber having the fixing member (5).

7. The rib plate fixing structure of the air extractor according to claim 6, characterized in that: The sealing plate (7) is detachably mounted on a first flange (8) of the housing (1) by means of bolts, wherein the first flange (8) is a flange on the housing (1) used for supporting the housing (1) on the ground when the sub-chamber (3) is arranged vertically.

8. The rib plate fixing structure of the air extractor according to claim 7, characterized in that: The sealing plates (7) are multiple and are arranged at intervals.

9. The rib plate fixing structure of the air extractor according to claim 6, characterized in that: The sealing plate (7) is a stainless steel plate.

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