CN214292761U

CN214292761U - Roots pump rotor processing frock

Info

Publication number: CN214292761U
Application number: CN202023278913.XU
Authority: CN
Inventors: 高峰
Original assignee: Suzhou Canghai Vacuum Machinery Co ltd
Current assignee: Suzhou Canghai Vacuum Machinery Co ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-09-28
Anticipated expiration: 2030-12-30

Abstract

A rotor processing tool of a roots pump belongs to the technical field of vacuum pump processing equipment. Including the workstation and install the bottom plate on the workstation, the bottom plate on be provided with a pair of fixing base at length direction's both ends, the fixing base offer the V-arrangement groove that is used for erectting the pivot of treating the processing rotor in the centre of up end, the bottom plate on still be equipped with level adjustment mechanism and adjustment seat, level adjustment mechanism be located the below of treating the processing rotor, the regulation seat set up in one side of the below of treating the processing rotor and be close to level adjustment mechanism, the centre of regulation seat be provided with adjusting bolt, adjusting bolt extend towards level adjustment mechanism and offset and lean on with level adjustment mechanism. The accurate location and spacing of lobe pump rotor have been realized, can obtain the lobe pump rotor that the precision is high, satisfy the requirement of machining precision, and then the probability of breaking down when reducing lobe pump operation, the life of extension lobe pump.

Description

Roots pump rotor processing frock

Technical Field

The utility model belongs to the technical field of vacuum pump machining equipment, concretely relates to lobe pump rotor processing frock.

Background

A roots vacuum pump (hereinafter, referred to as a roots pump) is a variable displacement vacuum pump which realizes air suction by pushing and pressing a pair of blade-shaped rotors which rotate in opposite directions synchronously in a pump cavity, and small gaps are formed among the rotors and between the rotors and the inner wall of a pump shell without contacting each other. The Roots pump is tested for long-term operation on devices such as petroleum, chemical engineering, plastics, pesticides, dynamic balance of a steam turbine rotor, aerospace space simulation and the like, so that the Roots pump is greatly popularized and applied at home and abroad. The rotor of the roots pump is the most key core component of the roots vacuum pump. The higher the rotor precision is, the higher the requirement on processing is, the rotor needs to be accurately positioned and limited during processing, and the size is frequently measured to ensure the precision of the rotor of the roots pump. The existing Roots pump rotor machining tool cannot meet the requirement of machining precision, and therefore the Roots pump has the defects of more faults and short service life when in operation.

In view of the above-mentioned prior art, the applicant has made active and beneficial designs and has finally found a solution to the above-mentioned problems, which is made in the following.

Disclosure of Invention

An object of the utility model is to provide a lobe pump rotor processing frock can realize the accurate location and spacing of lobe pump rotor, obtains the lobe pump rotor that the precision is high.

The utility model aims to achieve the purpose that the Roots pump rotor machining tool comprises a workbench and a bottom plate arranged on the workbench, a pair of fixed seats are arranged on the bottom plate in parallel at two ends in the length direction in a face-to-face manner, the middle of the upper end surface of the fixed seat is provided with a V-shaped groove for erecting a rotating shaft of the rotor to be processed, the bottom plate is also provided with a horizontal height adjusting mechanism and an adjusting seat, the horizontal height adjusting mechanism is positioned below the rotor to be processed, the adjusting seat is arranged at one side below the rotor to be processed and close to the horizontal height adjusting mechanism, the middle of the adjusting seat is provided with an adjusting bolt which extends towards the horizontal height adjusting mechanism and is propped against the horizontal height adjusting mechanism, and the position of the horizontal height adjusting mechanism is adjusted to enable the upper end surface of the horizontal height adjusting mechanism to be abutted against the lower surface of the rotor to be machined.

In a specific embodiment of the present invention, the fixing base is provided with a special-shaped pressing plate above the V-shaped groove, the special-shaped pressing plate is connected to the fixing base by screwing screws, and a gap for accommodating a rotating shaft of the rotor to be processed is formed between the special-shaped pressing plate and the V-shaped groove.

The utility model discloses a another concrete embodiment, still include auxiliary stay mechanism, auxiliary stay mechanism be located wait to process the below of rotor and fixed mutually with the bottom plate for treat and process the rotor and carry out auxiliary stay.

In another specific embodiment of the present invention, the horizontal height adjusting mechanism corresponds to one end of the rotor to be processed in the length direction, and the auxiliary supporting mechanism corresponds to the other end of the rotor to be processed in the length direction.

In another specific embodiment of the present invention, the horizontal height adjusting mechanism includes a slide rail and a slider, the slide rail is fixedly mounted on the bottom plate, the slider is slidably disposed on the slide rail through the bottom sliding groove, and the adjusting bolt pushes the lower surface of the rotor to be processed to be inconsistent.

In still another specific embodiment of the present invention, the auxiliary supporting mechanism includes a supporting base and a supporting bolt, the middle of the supporting base is provided with a bolt cap in an upward protruding manner, the bottom end of the supporting bolt is screwed into the bolt cap, and the supporting bolt is rotated to adjust the height of the top end of the supporting bolt to be inconsistent with the lower surface of the rotor to be processed.

In yet another specific embodiment of the present invention, an axial positioning screw is provided on one of the pair of fixing bases, extending toward the end face of the rotor to be processed.

The utility model discloses owing to adopted above-mentioned technical structure, compare with prior art, the beneficial effect who has is: the rotor of the roots pump is accurately positioned and limited, the rotor of the roots pump with high precision can be obtained, the requirement of machining precision is met, the probability of failure during running of the roots pump is further reduced, and the service life of the roots pump is prolonged; the positioning device can be used as a processing tool on different equipment, and can realize the processing of Roots rotors of different models on the same tool, the positioning precision is high, and the replacement and adjustment are convenient and fast.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a front view of the present invention.

Fig. 3 is a side view of the present invention.

In the figure: 1. a work table; 2. a base plate; 3. the device comprises a fixed seat, a V-shaped groove, a special-shaped pressure plate, a screw fastening screw and an axial positioning screw, wherein the fixed seat is 31, the V-shaped groove is 32, the special-shaped pressure plate is 33, and the screw is 34; 4. a rotor to be processed, 41. a rotating shaft; 5. a horizontal height adjusting mechanism, 51, a slide rail, 52, a slide block; 6. an adjusting seat 61, an adjusting bolt; 7. auxiliary supporting mechanism 71, supporting seat 711, bolt cap 72 and supporting bolt.

Detailed Description

The following detailed description of the embodiments of the present invention is provided in conjunction with the accompanying drawings, but the description of the embodiments is not intended to limit the technical solutions, and any changes made in the form of the present invention rather than the essential changes should be considered as the protection scope of the present invention.

Referring to fig. 1 to 3, the present invention relates to a rotor processing tool for roots pump, which comprises a worktable 1 and a bottom plate 2 installed on the worktable 1. The bottom plate 2 on both ends at length direction be provided with a pair of fixing base 3 in parallel face to face each other, fixing base 3 in the middle of the up end seted up be used for erectting the V-arrangement groove 31 of the pivot 41 of treating processing rotor 4 to be equipped with special-shaped clamp plate 32 in the top of V-arrangement groove 31, special-shaped clamp plate 32 is connected the installation through screw 33 of screwing with fixing base 3. A gap for accommodating the rotating shaft 41 of the rotor 4 to be processed is formed between the special-shaped pressing plate 32 and the V-shaped groove 31. An axial positioning screw 34 is further extended from one of the pair of fixed seats 3 toward the end face of the rotor 4 to be processed. The bottom plate 2 is also provided with a horizontal height adjusting mechanism 5 and an adjusting seat 6, and the horizontal height adjusting mechanism 5 is positioned below the rotor 4 to be processed. The adjusting seat 6 is arranged at one side below the rotor 4 to be processed and is close to the horizontal height adjusting mechanism 5. The middle of the adjusting seat 6 is provided with an adjusting bolt 61, and the adjusting bolt 61 extends towards the horizontal height adjusting mechanism 5 and abuts against the horizontal height adjusting mechanism 5, so that the position of the horizontal height adjusting mechanism 5 is adjusted to enable the upper end surface of the horizontal height adjusting mechanism to abut against the lower surface of the rotor 4 to be processed. Specifically, the horizontal height adjusting mechanism 5 includes a slide rail 51 and a slide block 52. The slide rail 51 is fixedly installed with the bottom plate 2, the slide block 52 is slidably disposed on the slide rail 51 through the bottom sliding groove, and then pushed by the adjusting bolt 61, so that the height of the slide block 52 gradually increases while sliding on the slide rail 51, and then the slide block is abutted to the lower surface of the rotor 4 to be processed. The sliding structure of the horizontal height adjusting mechanism 5 has various conventional designs, and is not limited to the combination of the sliding rail 51 and the sliding block 52, and thus the detailed description is omitted.

Further, the utility model discloses still include auxiliary stay mechanism 7, auxiliary stay mechanism 7 be located the below of waiting to process rotor 4 and fixed mutually with bottom plate 2 for treat to process rotor 4 and carry out auxiliary stay. In this embodiment, the horizontal height adjusting mechanism 5 corresponds to one end of the rotor 4 to be processed in the length direction, the auxiliary supporting mechanism 7 corresponds to the other end of the rotor 4 to be processed in the length direction, and the two mechanisms cooperate to realize stable support of the rotor 4 to be processed. The auxiliary supporting mechanism 7 comprises a supporting seat 71 and a supporting bolt 72, a bolt cap 711 is convexly arranged in the middle of the supporting seat 71, the bottom end of the supporting bolt 72 is screwed into the bolt cap 711, and the height of the supporting bolt 72 is adjusted by adjusting the screwed depth, so that the top end of the supporting bolt is abutted against the lower surface of the rotor 4 to be processed.

During machining, the rotating shafts 41 at the two ends of the rotor 4 to be machined are erected in the V-shaped grooves 31, and the end face of the rotor 4 to be machined is made to abut against the axial positioning screw 34. Then, the adjusting bolt 61 is rotated to make the upper surface of the slide block 52 of the horizontal height adjusting mechanism 5 just cling to the lower surface of the rotor 4 to be processed, and the screw 4 is screwed downwards to make the special-shaped pressing plate 32 press the rotor 4 to be processed on the fixed seat 3. The supporting bolt 71 of the auxiliary supporting mechanism 7 is rotated to be adjusted in height to just contact the lower surface of the rotor 4 to be processed.

As an integral fixture, the fixture can be used as a processing fixture on different equipment, and can realize the processing of Roots rotors of different models on the same fixture, the positioning precision is high, and the replacement and adjustment are convenient and fast.

Claims

1. The utility model provides a lobe pump rotor processing frock, includes workstation (1) and installs bottom plate (2) on workstation (1), its characterized in that: a pair of fixed seats (3) are arranged on the bottom plate (2) in parallel at two ends in the length direction in a face-to-face manner, the middle of the upper end surface of the fixed seat (3) is provided with a V-shaped groove (31) for erecting a rotating shaft (41) of the rotor (4) to be processed, the bottom plate (2) is also provided with a horizontal height adjusting mechanism (5) and an adjusting seat (6), the horizontal height adjusting mechanism (5) is positioned below the rotor (4) to be processed, the adjusting seat (6) is arranged at one side below the rotor (4) to be processed and is close to the horizontal height adjusting mechanism (5), an adjusting bolt (61) is arranged in the middle of the adjusting seat (6), the adjusting bolt (61) extends towards the horizontal height adjusting mechanism (5) and is abutted against the horizontal height adjusting mechanism (5), the horizontal height adjusting mechanism (5) is used for adjusting the position to enable the upper end surface of the horizontal height adjusting mechanism to be abutted against the lower surface of the rotor (4) to be processed.

2. A roots pump rotor processing tooling according to claim 1, characterized in that the fixed seat (3) is provided with a special-shaped pressure plate (32) above the V-shaped groove (31), the special-shaped pressure plate (32) is connected with the fixed seat (3) by screwing the screw (33), and a gap for accommodating the rotating shaft (41) of the rotor (4) to be processed is formed between the special-shaped pressure plate (32) and the V-shaped groove (31).

3. The tooling for machining the rotor of the roots pump as claimed in claim 1, further comprising an auxiliary support mechanism (7), wherein the auxiliary support mechanism (7) is located below the rotor (4) to be machined and fixed with the base plate (2) and is used for supporting the rotor (4) to be machined in an auxiliary manner.

4. A roots pump rotor processing tool according to claim 3, characterized in that the horizontal height adjusting mechanism (5) corresponds to one end of the rotor (4) to be processed in the length direction, and the auxiliary supporting mechanism (7) corresponds to the other end of the rotor (4) to be processed in the length direction.

5. The tooling for machining the rotor of the roots pump as claimed in claim 1, wherein the horizontal height adjusting mechanism (5) comprises a slide rail (51) and a slide block (52), the slide rail (51) is fixedly installed on the base plate (2), the slide block (52) is slidably arranged on the slide rail (51) through a bottom sliding groove, and the slide block is pushed by the adjusting bolt (61) to abut against the lower surface of the rotor (4) to be machined.

6. A roots pump rotor processing tooling according to claim 3, characterized in that the auxiliary supporting mechanism (7) comprises a supporting seat (71) and a supporting bolt (72), a bolt cap (711) is provided at the middle of the supporting seat (71) in an upward protruding manner, the bottom end of the supporting bolt (72) is screwed into the bolt cap (711), and the supporting bolt (72) is rotated to adjust the height of the top end to be against the lower surface of the rotor (4) to be processed.

7. A roots-pump rotor machining tool, in accordance with claim 1, characterized in that an axial set screw (34) is provided on one of the pair of holders (3) extending towards the end face of the rotor (4) to be machined.