Turbine vacuum pump structure

Abstract

The utility model relates to the technical field of vacuum pumps, in particular to a turbine vacuum pump structure which comprises a vacuum pump blade, the vacuum pump blade comprises a male blade and a female blade which can be mutually inserted and assembled left and right, and an inner supporting spring extending left and right is arranged between the male blade and the female blade in an abutting mode. And an inner guide supporting assembly for sleeving the inner side of the inner supporting spring and supporting and guiding is further connected between the male blade and the female blade, so that the structure is firmer and more stable.

Description

TECHNICAL FIELD

[0001] The utility model relates to a vacuum pump technical field, especially a kind of turbopump structure. BACKGROUND

[0002] Vacuum pump is used in the power equipment in many machines and equipment, and in the existing society, many fields will adopt vacuum pump. Especially like car, etc., will be used, and now the quality and cost of vacuum pump and other requirements are higher and higher. Of course, there are many patent technologies about vacuum pump in prior art.

[0003] Chinese patent with application No.202021565830.6 discloses a kind of vacuum pump blade and vacuum pump, vacuum system and vehicle with it, the vacuum pump blade includes first blade and second blade mutually inserted and assembled, first blade and second blade clearance fit;Elastic member, elastic member is located between first blade and second blade, elastic member exerts the thrust of first direction mutual departure to first blade and second blade, first direction is perpendicular to the direction of rotation axis of vacuum pump blade.

[0004] Chinese patent with application No.201520699935.3 discloses a kind of vacuum pump blade containing spring and vacuum pump with the vacuum pump blade, the vacuum pump blade containing spring includes blade body, end cap and spring, the middle part of the blade body is provided with sliding slot, the both ends of the blade body are also provided with end cap, wherein the spring is arranged in the middle part of sliding slot, the end cap is clamped in sliding slot and contacts with the spring.

[0005] In prior art, the sealing performance and cost have been greatly optimized when using. But the stability of structure is not very good, and failure is prone to occur when using, especially for the vacuum pump with elastic structure. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a kind of turbopump structure with more firm and stable structure.

[0007] The above-mentioned purpose of the utility model is realized by the following technical scheme: a kind of turbopump structure, including vacuum pump blade, the vacuum pump blade includes male blade and female blade that can be mutually inserted and assembled left and right, the male blade and female blade are abutted with the inner support spring extending left and right, the male blade and female blade are also connected with the inner guiding support assembly for the inner side of the inner support spring is set with and supports guiding.

[0008] As the preferred of the utility model, the male blade includes the male arc head which is half round shape and is used for abutting with the inner wall of vacuum pump cavity and the right extending male plug -in board which is integrally connected with the diameter edge part of male arc head, the female blade includes the female arc head which is half round shape and is used for abutting with the inner wall of vacuum pump cavity and the front support plate and the rear support plate which are integrally connected with the diameter edge part of female arc head and extend left and are spaced in front and back, the front support plate, female arc head and rear support plate enclose and form the insertion slot for the male plug -in board insertion, the inner guiding support assembly includes the inner guiding support rod which is integrally connected on the right end surface of male plug -in board and extends right, and the inner support spring is sleeved on the inner guiding support rod and abuts between the right end surface of male plug -in board and the diameter edge part of female arc head.

[0009] As the preferred of the utility model, the inner guiding support assembly further includes the left extending inner guiding support sleeve which is integrally connected with the diameter edge part of female arc head and is used for the right penetration of inner guiding support rod and the sleeve guiding of inner support spring.

[0010] As the preferred of the utility model, the inner guiding support rod and the inner guiding support sleeve are cylindrical structure, and the inner guiding support assembly has two groups or more and is spaced in up and down.

[0011] As the preferred of the utility model, the left and right extending outer support spring abuts between the male blade and female blade, and the outer guiding support assembly which is used for the inside sleeve of outer support spring and support guiding is further connected between the male blade and female blade.

[0012] As the preferred of the utility model, the front side and rear side of male plug -in board are provided with outer support spring, the outer support spring at the front side of male plug -in board abuts between the diameter edge part of male arc head and the left end surface of front support plate, the outer support spring at the rear side of male plug -in board abuts between the diameter edge part of male arc head and the left end surface of rear support plate, and the outer guiding support assembly includes the right extending outer guiding support rod which is integrally connected on the diameter edge part of male arc head and is used for the sleeve of outer support spring.

[0013] As the preferred of the utility model, the outer guiding support assembly further includes the left extending outer guiding support sleeve which is integrally connected on the left end surface of front support plate and rear support plate and is used for the right penetration of outer guiding support rod and the sleeve guiding of outer support spring.

[0014] As the preferred of the utility model, the outer guiding support rod and the outer guiding support sleeve are cylindrical structure, and the outer guiding support assembly has two groups or more and is spaced in up and down.

[0015] The diameter edge part of the male arc head is integrally connected with a front baffle which is further forward of the rightward extending and located at the front side of the male plug-in plate outer supporting spring, and the diameter edge part of the male arc head is integrally connected with a rear baffle which is further rearward of the rightward extending and located at the rear side of the male plug-in plate outer supporting spring.

[0016] The left side part of the front supporting plate is provided with a front shielding guide groove which extends leftward and rightward and is used for the front baffle to pass through, and the right side part of the rear supporting plate is provided with a rear shielding guide groove which extends leftward and rightward and is used for the rear baffle to pass through.

[0017] The utility model discloses the beneficial effect has: the guidance and the support of the elastic structure in the vacuum pump blade have been promoted, and the overall structural strength and stability are better, and the failure is not easy to appear, and the sealing is also more excellent, and the contact is even, whether it is use effect or use life has been optimized. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the three -dimensional structure schematic diagram of vacuum pump blade involved in the vacuum pump structure in the embodiment;

[0019] Figure 2 It is Figure 1 It is the three -dimensional structure schematic diagram of left and right split state;

[0020] Figure 3 It is Figure 2 It is the three -dimensional structure schematic diagram of upper side angle. DETAILED DESCRIPTION

[0021] The utility model will be further explained in detail in combination with the drawings.

[0022] The embodiment is merely the explanation of the utility model, and it is not the limitation of the utility model, and the person skilled in the art can make the modification of no creative contribution according to the need after reading the present specification, but as long as in the utility model's right claim range all receive the patent law's protection.

[0023] The embodiment, such as Figures 1-3The turbine vacuum pump structure shown, comprising a vacuum pump blade, the vacuum pump blade comprises male blade 1 and female blade 2 that can be assembled left and right, the male blade 1 and female blade 2 abut with left and right extending inner support spring 3, the application is also combined with the blade structure and uses the structure of elastic support to prolong the service life, so that the wear of the sealing rotation process, by the elastic force of spring radially open so that two blades can always and vacuum pump wall abut. But the new design of the application is that the male blade 1 and female blade 2 are also connected with the inner guiding support assembly for the inner side of the inner support spring 3 to set and support the guide, through the guiding support of the inner guiding support assembly, the left and right elastic force of the inner support spring 3 is more stable, and the deformation is also more stable, and is not easy to tilt and bend, because in the use process, not only the left and right direction force, actually, there will be various directions force because of the gap or shaking, vibration, etc., especially the upward direction, which makes the spring that is easy to deform not better straight line type left and right abut stress, the force in various directions will lead to the instability of left and right support, on the one hand, the spring itself is easy to be damaged, on the other hand, the cooperation between the blades will have the upward position deviation to lead to the tilt, etc., so as to lead to the uneven wear of abutting sealing part, etc., and the service life and sealing effect and vacuumizing effect will have not small influence. And through the design of the inner guiding support assembly, the above problems can be effectively solved. The inner support spring 3 is set on the periphery of the inner guiding support assembly.

[0024] Specifically, the male blade 1 includes a semi-circular male arc head 11 for abutting against the inner wall of the vacuum pump cavity, and a male plug plate 12 integrally connected to the right of the diameter edge of the male arc head 11, the arc-shaped part of the male arc head 11 is on the left and abuts against the inner wall of the vacuum pump cavity for sealing, the diameter edge of the male arc head 11 is on the right, that is, the flat part is on the right, and the male plug plate 12 is in a rectangular shape. The female blade 2 includes a semi-circular female arc head 21 for abutting against the inner wall of the vacuum pump cavity, and a front support plate 22 and a rear support plate 23 integrally connected to the left of the diameter edge of the female arc head 21 and extending forward and backward at intervals, the front support plate 22, the female arc head 21 and the rear support plate 23 form a slot 20 for the male plug plate 12 to be inserted, the arc-shaped part of the female arc head 21 is on the right and abuts against the inner wall of the vacuum pump cavity for sealing, and the diameter edge of the female arc head 21 is on the left, that is, the flat part is on the left. Then, the left and right embedding of the male plug plate 12 and the slot 20 is the structure combination for limiting and moving, and the slot 20 is also a rectangular slot. Further, the inner guiding support assembly includes an inner guiding support rod 31 integrally connected to the right end surface of the male plug plate 12 and extending to the right, and the inner support spring 3 is sleeved on the outer periphery of the inner guiding support rod 31 and abuts between the right end surface of the male plug plate 12 and the diameter edge of the female arc head 21. Through the design of the inner guiding support rod 31, the inner support spring 3 is sleeved on the outer periphery, so that the elastic force of the inner support spring 3 can be greatly controlled and kept in the left and right directions, so that the support force of the male blade 1 and the female blade 2 can always be well kept in the left and right directions, and the horizontal positions of the two are very stable, so that the arc-shaped parts of the male arc head 11 and the female arc head 21 are more evenly worn during use, and the process of the spring being expanded left and right by the wear is also more stable, so that the male arc head 11 and the female arc head 21 can still well abut against the inner wall of the vacuum pump cavity.

[0025] Further, the inner guiding support assembly further comprises a leftward extending inner guiding support sleeve 32 integrally connected to the diameter edge portion of the female arc-shaped head 21, for the rightward penetration of the inner guiding support rod 31 and the sleeving guiding of the inner support spring 3. This further structural design makes the structure of the inner guiding support rod 31 not too simple, and the female arc-shaped head 21 also has a corresponding guiding structure, so that the structural firmness and stability of the assembly are better, and the guiding property is also better. The inner support spring 3 is sleeved outside the penetrating structure of the inner guiding support rod 31 and the inner guiding support sleeve 32. Further preferably, the inner guiding support rod 31 and the inner guiding support sleeve 32 are both cylindrical structures, the inner guiding support assembly has two or more groups and is distributed in an upper and lower interval, an axial hole is formed in the inner guiding support sleeve 32, the inner guiding support rod 31 penetrates the axial hole and can move left and right, has better guiding support property in use, the size of the axial hole is consistent with the diameter of the inner guiding support rod 31, the outer diameter of the inner guiding support sleeve 32 is greater than the diameter of the inner guiding support rod 31, and the greater part is the sleeve wall thickness of the inner guiding support sleeve 32. The diameter of the area surrounded by the inner support spring 3 is slightly greater than the inner guiding support sleeve 32, which improves the compactness of the structure.

[0026] Further, the male blade 1 and the female blade 2 abut against the leftward and rightward extending outer support spring 4, and the male blade 1 and the female blade 2 are further connected with an outer guiding support assembly for the inner sleeving and support guiding of the outer support spring 4. Here, the guiding property and the support property can be better improved, not only the guiding support structure is provided at the inner position of the insertion slot 20, but also the corresponding guiding support structure is provided at the outer position of the insertion slot 20.

[0027] Specifically, the front side and the rear side of the male insertion board 12 are both provided with the outer support spring 4, the outer support spring 4 at the front side of the male insertion board 12 abuts between the diameter edge portion of the male arc-shaped head 11 and the left end surface of the front support plate 22, the outer support spring 4 at the rear side of the male insertion board 12 abuts between the diameter edge portion of the male arc-shaped head 11 and the left end surface of the rear support plate 23, and the outer guiding support assembly comprises an outer guiding support rod 51 integrally connected to the diameter edge portion of the male arc-shaped head 11 and extending rightward for the sleeving of the outer support spring 4. Through such a design, the structure is strengthened and guided at the outer front and rear side positions.

[0028] As preferred, the outer guiding support assembly further comprises a leftwardly extending outer guiding support sleeve 52 integrally connected to the left end face of the front support plate 22 and the rear support plate 23, for the outer guiding support rod 51 to pass through rightwardly and for the outer support spring 4 to be sleeved and guided. The design of the outer guiding support rod 51 and the outer guiding support sleeve 52 can refer to the inner side structure, only the position of the design is outwardly in front and back, and the performance optimization is more obvious. Specifically, the outer guiding support rod 51 and the outer guiding support sleeve 52 are both cylindrical structures, the front side and the rear side of the male plug-in plate 12 are both provided with two or more groups of the outer guiding support assembly and are both spaced and distributed upward and downward. Here, the difference of the outer side structure is that the front side and the rear side of the male plug-in plate 12 are both provided. In addition to the elastic support of one position of the inner side, three supporting positions are formed, and the structural stability is more optimized.

[0029] As preferred, the outer guiding support assembly further comprises a leftwardly extending outer guiding support sleeve 52 integrally connected to the left end face of the front support plate 22 and the rear support plate 23, for the outer guiding support rod 51 to pass through rightwardly and for the outer support spring 4 to be sleeved and guided. The design of the outer guiding support rod 51 and the outer guiding support sleeve 52 can refer to the inner side structure, only the position of the design is outwardly in front and back, and the performance optimization is more obvious. Specifically, the outer guiding support rod 51 and the outer guiding support sleeve 52 are both cylindrical structures, the front side and the rear side of the male plug-in plate 12 are both provided with two or more groups of the outer guiding support assembly and are both spaced and distributed upward and downward. Here, the difference of the outer side structure is that the front side and the rear side of the male plug-in plate 12 are both provided. In addition to the elastic support of one position of the inner side, three supporting positions are formed, and the structural stability is more optimized.

[0030] Further, the left side of the front support plate 22 is provided with a front shielding guide groove 71 extending leftward and rightward for the front baffle 61 to pass through, and the right side of the rear support plate 23 is provided with a rear shielding guide groove 72 extending leftward and rightward for the rear baffle 62 to pass through. Such design not only can achieve blocking, but also the male blade 1 and the female blade 2 are not affected during leftward and rightward movement.

[0031] Through the above design, the spliced vacuum pump blade has better stability, higher strength, more uniform stress, better use effect and longer service life.

[0032] The above is only a specific implementation manner of the present application, but the protection scope of the present application is not limited to this. Any skilled person in the art can easily think of various equivalent modifications or replacements within the technical range disclosed by the present application, and these modifications or replacements should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A turbomolecular vacuum pump structure, characterized by, The application relates to a vacuum pump blade, which comprises a male blade (1) and a female blade (2) capable of being assembled by being inserted left and right, an inner supporting spring (3) extending left and right is arranged between the male blade (1) and the female blade (2), and an inner guiding and supporting assembly is further connected between the male blade (1) and the female blade (2) and is sleeved and guided on the inner side of the inner supporting spring (3).

2. A turbovacuum pump structure according to claim 1, characterized in that The male blade (1) comprises a male arc-shaped head (11) in a semicircular shape for abutting against the inner wall of a vacuum pump cavity and a male inserting plate (12) integrally connected to the diameter edge of the male arc-shaped head (11) and extending rightward, the female blade (2) comprises a female arc-shaped head (21) in a semicircular shape for abutting against the inner wall of the vacuum pump cavity and front and rear supporting plates (22) and (23) integrally connected to the diameter edge of the female arc-shaped head (21) and extending leftward and being spaced apart in front and back directions, the front and rear supporting plates (22) and (23) and the female arc-shaped head (21) surround to form an inserting groove (20) for inserting the male inserting plate (12), the inner guiding and supporting assembly comprises an inner guiding and supporting rod (31) integrally connected to the right end surface of the male inserting plate (12) and extending rightward, and the inner supporting spring (3) is sleeved on the inner guiding and supporting rod (31) and abuts against the right end surface of the male inserting plate (12) and the diameter edge of the female arc-shaped head (21).

3. A turbocompressor structure according to claim 2, characterized in that The inner guiding and supporting assembly further comprises an inner guiding and supporting sleeve (32) integrally connected to the diameter edge of the female arc-shaped head (21) and extending leftward, the inner guiding and supporting rod (31) penetrates rightward in the inner guiding and supporting sleeve (32), and the inner supporting spring (3) is sleeved and guided in the inner guiding and supporting sleeve (32).

4. A turbocompressor structure according to claim 3, characterized in that The inner guiding and supporting rod (31) and the inner guiding and supporting sleeve (32) are both in cylindrical structures, and the inner guiding and supporting assembly has two or more groups and is spaced apart in up and down directions.

5. A turbocompressor structure according to claim 2, characterized in that The male blade (1) and the female blade (2) abut against an outer supporting spring (4) extending left and right, and an outer guiding and supporting assembly is further connected between the male blade (1) and the female blade (2) and is sleeved and guided on the inner side of the outer supporting spring (4).

6. A turbocompressor structure according to claim 5, characterized in that The front side and the rear side of the male inserting plate (12) are both provided with the outer supporting spring (4), the outer supporting spring (4) on the front side of the male inserting plate (12) abuts against the left end surface of the front supporting plate (22) and the diameter edge of the male arc-shaped head (11), the outer supporting spring (4) on the rear side of the male inserting plate (12) abuts against the left end surface of the rear supporting plate (23) and the diameter edge of the male arc-shaped head (11), and the outer guiding and supporting assembly comprises an outer guiding and supporting rod (51) integrally connected to the diameter edge of the male arc-shaped head (11) and extending rightward and sleeving the outer supporting spring (4).

7. A turbocompressor structure according to claim 6, characterized in that The outer guiding and supporting assembly further comprises an outer guiding and supporting sleeve (52) integrally connected to the left end surface of the front and rear supporting plates (22) and (23) and extending leftward, the outer guiding and supporting rod (51) penetrates rightward in the outer guiding and supporting sleeve (52), and the outer supporting spring (4) is sleeved and guided in the outer guiding and supporting sleeve (52).

8. A turbocompressor structure according to claim 7, characterized in that The outer guiding support rod (51) and the outer guiding support sleeve (52) are both cylindrical structures, and the front side and the rear side of the male plug plate (12) are both provided with two or more sets of the outer guiding support assembly and are both spaced apart in the up-down direction.

9. A turbocompressor structure according to claim 7, characterized in that The front baffle (61) is further integrated on the rightward extending outer support spring (4) on the diameter edge of the male arc head (11) and located in front of the male plug plate (12). The rear baffle (62) is further integrated on the rightward extending outer support spring (4) on the diameter edge of the male arc head (11) and located behind the male plug plate (12).

10. A turbocompressor structure according to claim 9, characterized in that The left side of the front support plate (22) is provided with the front shielding guiding groove (71) extending in the left-right direction and allowing the front baffle (61) to pass through. The right side of the rear support plate (23) is provided with the rear shielding guiding groove (72) extending in the left-right direction and allowing the rear baffle (62) to pass through.

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