A rib plate fixing structure for an air extractor

Abstract

A vacuum pump rib plate fixing structure relates to the vacuum pump technical field. To solve the problem that multi-point bolts cannot achieve reliable rigid fixation. The present invention includes a shell and a plurality of partition plates arranged in parallel and at intervals in the shell. A plurality of sub-chambers are formed by the plurality of partition plates. A plurality of rib plates distributed vertically and horizontally are connected to both sides of each sub-chamber plate. The spaced sub-chambers are first chambers, and the sub-chambers located between two adjacent first chambers are second chambers. When the rib plates in the first chamber are cut, the fixing parts are completely filled in each second chamber, or when the rib plates in the second chamber are cut, the fixing parts are completely filled in each first chamber. The fixing parts can be completely filled in the first chamber or the second chamber. In this case, the fixing parts cannot move. When the rib plates are cut, the cutting vibration of the machining tool will not affect the fixing parts. The fixing parts can always maintain rigid fixation of the partition plates to ensure smooth subsequent processing.

Description

Technical Field

[0001] The present invention relates to the technical field of air extractors, and in particular to a rib plate fixing structure for 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 partition plate, and a rib plate. There are multiple partition plates, and multiple partition plates are arranged in parallel and spaced apart in the outer shell to form multiple chambers. The chamber is used to insert the pipe system to achieve heat exchange. Ribs arranged vertically and horizontally are welded on both sides of the partition plate. Since the stainless steel is deformed by heat during the welding process, the partition plate and the ribs on it are deformed as a whole, resulting in changes in the size of each chamber 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 allowance of the rib plate on the partition plate. At present, most people use cutting to remove the allowance, but since the partition plate is thin, the partition plate needs to be fixed before cutting to avoid the partition 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 for an air extractor, comprising: a housing and a plurality of cavity plates arranged in parallel and spaced apart in the housing, wherein a plurality of sub-cavities are formed by the plurality of cavity plates, and a plurality of rib plates distributed vertically and horizontally are connected to both sides of each cavity 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. 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 this 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. The fixing part can always maintain the rigid fixation of the cavity plate to ensure smooth subsequent processing.

[0017] 2. The present invention provides an exhaust rib fixing structure, and the fixing parts are selected from low-melting-point alloys. The low-melting-point alloy is melted and then poured. The low-melting-point alloy can fill every place in the sub-chamber. Its use environment is not limited by its own shape, the scope of application is wider, and the use effect is better.

[0018] 3. The vacuum pump rib plate fixing structure provided by the present invention can reduce the amount of low-melting-point alloy used in the supplementary parts, thereby reducing costs while ensuring overall strength to achieve rigid fixation of the cavity 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. Shell; 2. Dividing chamber plate; 3. Dividing 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 1Describing this embodiment, this embodiment includes a shell 1 and a plurality of partition plates 2 arranged in parallel and at intervals in the shell 1, a plurality of partition plates 2 are used to form a plurality of partition chambers 3, and a plurality of ribs 4 distributed vertically and horizontally are connected to both sides of each partition plate 2, the partition plates 2 are installed in the shell 1 by welding, and the ribs 4 are installed on the partition plates 2 by welding, the partition chambers 3 distributed at intervals are the first chambers, and the partition chambers 3 located between two adjacent first chambers are the second chambers, when the ribs 4 in the first chamber are cut, the fixing parts 5 are completely filled in each second chamber, or when the ribs 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, and 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 of the dividing 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 made of a low-melting-point alloy. After melting, the low-melting-point alloy is poured into the first or second chamber. This low-melting-point alloy can completely fill every space within the sub-chamber 3. Its use is not limited by its shape, resulting in a wide range of applications and improved performance. Of course, the above description is not restrictive. As an alternative embodiment, the fixing member 5 can also be made of an iron block of the same shape as the sub-chamber 3, inserted into the sub-chamber 3 to rigidly secure the sub-chamber plate 2. The remaining components and connections are the same as those in the first embodiment.

[0024] Specific implementation method three: Combination Figure 1 This embodiment further includes a supplementary component 6 embedded in the first or second cavity where the low-melting-point alloy is cast. Specifically, the supplementary component 6 is embedded in the corresponding cavity where the low-melting-point alloy is cast. This supplementary component 6 reduces the amount of low-melting-point alloy used, thereby reducing costs while ensuring overall strength and rigidly securing the cavity plate 2. Of course, the above description is not restrictive. As an alternative embodiment, the supplementary component 6 can be omitted, and only the low-melting-point alloy can be cast. Other components and connections are the same as those in the second embodiment.

[0025] Specific implementation method four: Combination Figure 1To illustrate this embodiment, the supplementary member 6 can be a rectangular wooden block. This block is lightweight and can withstand the melting temperature of the low-melting-point alloy, making it 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. The rest of the components and connections are the same as those in the third embodiment.

[0026] Specific implementation method five: Combination Figure 1 To illustrate this embodiment, the low-melting-point alloy in this embodiment can be a bismuth-tin alloy, with bismuth accounting for 58% and tin accounting for 42%. Its melting point is generally between 60°C and 200°C. Bismuth-tin alloys are widely used and readily available. Of course, the above description is not restrictive. As an alternative embodiment, the low-melting-point alloy can also be composed solely of bismuth or tin. Other components and connections are the same as those in Specific Embodiment 3.

[0027] Specific implementation method six: combination Figure 1 This embodiment further includes a sealing plate 7 that blocks the opening of the first or second chamber containing the fixing member 5. The sealing plate 7 blocks and positions the fixing member 5, ensuring that the fixing member 5 is accurately placed within the sub-chamber 3. Of course, the above description is not restrictive. As an alternative embodiment, sealing plates 7 may be provided at both side openings of the sub-chamber 3. Other components and connections are the same as those in any of the first to fifth embodiments.

[0028] Specific implementation method seven: combination Figure 1 To explain this embodiment, the sealing plate 7 is removably mounted to the first flange 8 of the housing 1 via bolts. The first flange 8 is the flange on the housing 1 used to support the ground when the sub-chamber 3 is vertically arranged. This allows the sealing plate 7 to be precisely mounted at the opening of the sub-chamber 3 and is easily removable, 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 to the housing flange using hydraulic equipment. Other components and connections are the same as those in Specific Embodiment 6.

[0029] Specific implementation method eight: combination Figure 1 This embodiment describes a plurality of sealing plates 7 arranged at intervals. The number of sealing plates 7 is the same as the number of sub-chambers 3, ensuring that all sealing plates 7 are fully utilized without wasting. Of course, the above description is not restrictive. As an alternative embodiment, sealing plate 7 may also be a single, integral plate. Other components and connections are the same as those in 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. Stainless steel maintains excellent mechanical and physical properties in high or low temperature environments, is not easily deformed or cracked, 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 applications that need to withstand heavy loads and impacts. Of course, the above description is not restrictive. As an alternative embodiment, the sealing plate 7 may also be made of iron or copper. The other components and connection relationships are the same as those of the sixth embodiment.

[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 with bolts, and the sealing plate 7 is to seal the opening of the second chamber;

[0033] 2. Pour a portion of low-melting-point alloy into the second chamber, and then place the rectangular wooden 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 cools down, 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 reuse;

[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 they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. 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 various embodiments of the present invention.

Claims

1. A rib fixing structure for an air extractor, comprising: A housing (1) and a plurality of cavity plates (2) arranged in parallel and spaced apart within the housing (1), wherein a plurality of sub-cavities (3) are formed by the plurality of cavity plates (2), and a plurality of rib plates (4) distributed longitudinally and transversely are respectively connected to both sides of each cavity plate (2); The invention is characterized in that the spaced sub-chambers (3) are first chambers, the sub-chamber (3) located between two adjacent first chambers is a second chamber, and when the ribs (4) in the first chambers are cut, the fixing member (5) is completely filled in each of the second chambers, or when the ribs (4) in the second chambers are cut, the fixing member (5) is completely filled in each of the first chambers; 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; It also includes: a supplementary part (6) 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 (6) after casting, and the supplementary part (6) is a rectangular wooden block.

2. The rib plate fixing structure of the air extractor according to claim 1, characterized in that: The low melting point alloy is a bismuth-tin alloy.

3. The rib fixing structure of an air extractor according to claim 1 or 2, characterized in that: Also includes: A sealing plate (7) is used to seal an opening on one side of the first chamber or the second chamber having the fixing member (5).

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

5. The rib fixing structure of the air extractor according to claim 4, characterized in that: The sealing plates (7) are multiple and spaced apart.

6. The rib fixing structure of an air extractor according to claim 3, characterized in that: The sealing plate (7) is a stainless steel plate.

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