CN109940336A - A kind of helical-lobe compressor fracture main shaft reparation auxiliary mould - Google Patents
A kind of helical-lobe compressor fracture main shaft reparation auxiliary mould Download PDFInfo
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- CN109940336A CN109940336A CN201910348008.XA CN201910348008A CN109940336A CN 109940336 A CN109940336 A CN 109940336A CN 201910348008 A CN201910348008 A CN 201910348008A CN 109940336 A CN109940336 A CN 109940336A
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- 230000004323 axial length Effects 0.000 abstract description 3
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
The invention discloses a kind of helical-lobe compressor fracture main shafts to repair auxiliary mould, including the first clamping bench, high level of accuracy tester, set lever and support platform, first clamping bench and the second clamping bench are mounted on the upper surface of guide rail, the first fracture main shaft and the second fracture main shaft are connected between first clamping bench and the second clamping bench, the inner surface of first clamping bench and the second clamping bench is equipped with scroll chuck, the inside to heart V-type workbench is equipped with roller, and the bottom to heart V-type workbench is connected with worm screw.The helical-lobe compressor is broken main shaft reparation auxiliary mould can be in the post-rift repair process of air compressor main shaft, it fast implements and the position to the heart and axial length direction of two sections of fracture main shafts is adjusted, convenient for quick-clamping and REPAIR WELDING, the compressor main shaft transport for not needing drop fracture is repaired back to compressor genuine, and then enterprise is helped quickly to resume production, the wasting of resources is reduced, the operation cost of enterprise is reduced.
Description
Technical Field
The invention relates to the technical field of screw compressor main shaft repair, in particular to an auxiliary tool for repairing a broken main shaft of a screw compressor.
Background
The main shaft of the large air compressor is easy to break due to factors such as long-term high-load operation, vibration, fatigue and the like. After the air compressor main shaft breaks, in order to practice thrift the operation cost of enterprise, can prolong the life-span of main shaft through the mode of repairing the connection. However, when the main shaft is repaired, in order to ensure the same parameters (especially length dimension and coaxiality parameters) of the main shaft of the compressor as the original main shaft, an accurate positioning and clamping device or processing equipment is needed, so that the main shaft is often required to be transported to an original compressor production plant for repairing, the cost is high, the period is long, and the production of enterprises is delayed.
General professional machining manufacturers in the market at present have the problems of difficulty in repair, high repair cost, long repair period and delay in enterprise production due to the fact that corresponding positioning tools are not available. Therefore, the market provides a demand for the auxiliary positioning tool which can realize quick repair after the main shaft of the compressor is broken.
Disclosure of Invention
The invention aims to provide an auxiliary tool for repairing a broken main shaft of a screw compressor, and aims to solve the problems that common professional machining factories on the market in the prior art are difficult to repair, high in repair cost, long in period and delay the current production situation of enterprises due to the fact that corresponding positioning tools are not available.
In order to achieve the purpose, the invention provides the following technical scheme: a screw compressor broken main shaft repair auxiliary tool comprises a first clamping table, a high-precision horizontal tester, a locking handle and a supporting platform, wherein the first clamping table and a second clamping table are arranged on the upper surface of a guide rail, a first broken main shaft and a second broken main shaft are connected between the first clamping table and the second clamping table, wherein,
the utility model discloses a three-jaw chuck of split type high-precision horizontal tester, including first clamping platform, second clamping platform, first split main shaft, first split end, second split end, locking handle, third clamping platform, locking handle, third clamping platform, the centering V-shaped workbench is characterized in that a guide device is arranged between the supporting platform and the centering V-shaped workbench, a circular handle is arranged on the surface of one side of the supporting platform, and the bottom of the worm is connected inside the supporting platform.
Preferably, the first clamping table and the second clamping table are clamping tables with the same specification, and the first clamping table and the second clamping table are in sliding connection with the guide rail.
Preferably, the three-jaw chucks are arranged on the inner sides of the first clamping table and the second clamping table in two, and the 2 three-jaw chucks are in concentric installation structural forms.
Preferably, the high-precision level tester is mounted on the fracture surface of the first fracture main shaft.
Preferably, the centering V-shaped worktable is in rotary connection with the worm through a worm gear, and the worm is in transmission connection with the circular handle.
Preferably, two groups of rollers are arranged inside the V-shaped opening surface of the centering V-shaped workbench. And the roller and the centering V-shaped worktable are in rolling connection.
Preferably, the bottom of the supporting platform is in clamping sliding connection with the guide rail.
The application also provides a clamping and positioning method of the auxiliary tool for repairing the broken main shaft of the screw compressor, which comprises the following steps:
s1, preliminarily calculating the height of a centering V-shaped workbench according to the outer diameter size of a main shaft of a compressor, rotating a circular handle, and adjusting the upper position and the lower position of the centering V-shaped workbench to ensure that the axis of the main shaft is overlapped with the axis of a three-jaw chuck as much as possible after a broken main shaft is installed on a tool so as to reduce the later-stage adjustment time;
s2, moving a long section of broken main shaft to be repaired to an auxiliary tool by using a traveling crane or other hoisting equipment, placing one end of the long section of broken main shaft to be repaired into a three-jaw chuck and one end of the long section of broken main shaft to be repaired into a V-shaped groove of a centering V-shaped worktable, placing the long section of broken main shaft on a roller, placing a high-precision horizontal tester on the broken main shaft to be repaired in an adsorption manner through a magnet (or the horizontal tester is magnetized) and enabling the high-precision horizontal tester to be close to the broken part as much as possible, then, while slowly screwing one end of the main shaft through the three-jaw chuck, the round handle is rotated, the upper and lower positions of the centering V-shaped worktable are adjusted through the worm transmission, the display of the high-precision horizontal tester is observed while the adjustment is carried out, when the display data becomes zero or within the allowable error range, the circular handle is stopped to rotate, the worm and the worm wheel matched with the worm have a self-locking function, so that the centering V-shaped workbench can keep the current position;
s3, moving the other section of broken main shaft to be repaired to an auxiliary tool by using a crane or other hoisting equipment, placing one end of the broken main shaft into a three-jaw chuck of a movable second clamping table, placing the other end (the broken end) of the broken main shaft on a roller of a centering V-shaped workbench, clamping the broken main shaft to be repaired by using the three-jaw chuck, pushing the movable second clamping table, and adjusting the distance between the sections of the two sections of broken main shafts to a proper position;
s4, observing the display data of the high-precision level instrument again to ensure that the display data do not change or exceed the error range, and if the display data exceed the error range, rotating the circular handle to adjust the upper position and the lower position of the centering V-shaped workbench;
s5, spot welding is carried out at a plurality of positions of the fracture surfaces of the two sections of main shafts, the spot welding is required to be firm, after the spot welding positions are cooled, welding and repairing are carried out on the two sections of fracture main shafts, and the mode of rotating the main shafts and repairing while welding is adopted until the fracture surfaces of the main shafts are completely welded together. And after the position to be welded is completely cooled to room temperature, taking down the repaired spindle from the clamping table, and carrying out other processing treatments such as turning and the like until the repairing is finished.
Compared with the prior art, the invention has the beneficial effects that: this screw compressor fracture main shaft restores auxiliary fixtures:
1. the tool can quickly adjust the positions of two sections of fractured main shafts in the centering and axial length directions in the repairing process after the main shafts of the air compressor are fractured, and is convenient for quick clamping and welding repairing, so that the quick repairing can be realized in a general machining factory near a compressor using enterprise, the fractured main shafts of the compressor do not need to be reduced and transported back to a compressor original factory for repairing, the enterprise is helped to quickly recover production, the resource waste is reduced, and the operation cost of the enterprise is reduced;
2. the auxiliary tool can be automatically adjusted to a great extent, the repair of the multi-shaft compressor main shafts with different length sizes and radial sizes can be realized, the application range is wide, the repair method is simple, the operation is convenient, general machining enterprises can complete the repair, and the repair cost is low.
Drawings
FIG. 1 is a schematic perspective view of an auxiliary tool for repairing a broken main shaft of a screw compressor according to the present invention;
FIG. 2 is a schematic structural view of a main shaft of an auxiliary tool for repairing a broken main shaft of a screw compressor according to the present invention;
fig. 3 is a schematic view of a broken main shaft structure of the auxiliary tool for repairing a broken main shaft of a screw compressor.
In the figure: 1. the device comprises a first clamping table, 2, a three-jaw chuck, 3, a first fracture main shaft, 4, a high-precision horizontal tester, 5, a centering V-shaped workbench, 6, a roller, 7, a worm, 8, a second fracture main shaft, 9, a circular handle, 10, a second clamping table, 11, a guide rail, 12, a locking handle, 13, a supporting platform, 14 and a guide device.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: a screw compressor broken spindle repairing auxiliary tool comprises a first clamping table 1, a three-jaw chuck 2, a first broken spindle 3, a high-precision horizontal tester 4, a centering V-shaped workbench 5, a roller 6, a worm 7, a second broken spindle 8, a circular handle 9, a second clamping table 10, a guide rail 11, a locking handle 12, a supporting platform 13 and a guiding device 14, wherein the first clamping table 1 and the second clamping table 10 are arranged on the upper surface of the guide rail 11, the first clamping table 1 and the second clamping table 10 are clamping tables with the same specification, the first clamping table 1 and the second clamping table 10 form sliding connection with respect to the guide rail 11, the compressor spindle broken repairing auxiliary tool is of an integral structure, the two clamping tables are both arranged on the guide rail 11 and can freely move along the direction of the guide rail, the first broken spindle 3 and the second broken spindle 8 are connected between the first clamping table 1 and the second clamping table 10, wherein,
the inner side surface of the first clamping table 1 and the inner side surface of the second clamping table 10 are provided with three-jaw chucks 2, the three-jaw chucks 2 are arranged on the inner sides of the first clamping table 1 and the second clamping table 10, the three-jaw chucks 2 are concentric in mounting structure, the two ends of a fracture spindle are clamped and fixed by the three-jaw chucks 2 at the 2 ends respectively, and are convenient to stably repair, one end of the first fracture spindle 3 is mounted inside the three-jaw chuck 2 at one side of the first clamping table 1, the high-precision horizontal tester 4 is mounted on the surface, close to the fracture, of the first fracture spindle 3, the high-precision horizontal tester 4 is mounted on the surface of the fracture of the first fracture spindle 3, the high-precision horizontal tester 4 is used for testing the coaxiality of the two fracture spindles and improving the repairing precision of the spindles, the fracture end of the first fracture spindle 3 is connected to the upper surface of the centering V-shaped worktable 5, the centering V-shaped workbench 5 is in worm gear rotation connection with the worm 7, the worm 7 is in transmission connection with the circular handle 9, the middle movable support table 13 is adopted, the upper position and the lower position of the centering V-shaped workbench 5 are adjusted by utilizing the self-locking function of the worm 7, and the coaxiality of two sections of broken main shafts is ensured. The roller 6 is in rolling connection with the centering V-shaped workbench 5, the roller 6 structure capable of freely rotating is designed on the centering V-shaped workbench 5, adjustment of gaps of broken surfaces of main shafts during repair is facilitated, a worm 7 is connected to the bottom of the centering V-shaped workbench 5, the broken end of a second broken main shaft 8 is connected to the upper surface of the centering V-shaped workbench 5, the connecting end of the second broken main shaft 8 is installed in a three-jaw chuck 2 on the inner side of a second clamping table 10, the bottom of the second clamping table 10 is installed on the upper surface of a guide rail 11, a locking handle 12 is installed on one side surface of the first clamping table 1 and the second clamping table 10, the bottom of a supporting platform 13 is installed on the upper surface of the guide rail 11, the bottom of the supporting platform 13 is in clamping sliding connection with the guide rail 11, and the roller can be suitable for structures of a middle movable supporting and clamping supporting support platform 13 and the main shafts with different breaking positions and different outer diameters and the centering V-shaped workbench 5, a guide device 14 is arranged between the supporting platform 13 and the centering V-shaped worktable 5, a circular handle 9 is arranged on the surface of one side of the supporting platform 13, and the bottom of the worm 7 is connected inside the supporting platform 13.
The working principle is as follows: when the auxiliary tool for repairing the broken main shaft of the screw compressor is used, the first clamping tables 1 and 10 are in the same structural design and are both mounted on the guide rail 11 and can freely move on the guide rail along the direction of the guide rail, and in addition, tool cabinets (not shown in the drawing) are further designed in the clamping tables and are used for placing common tools required by repairing the main shaft of the compressor. In order to repair the main shaft of the compressor conveniently, one of the two is generally required to be fixed, any one end of the first clamping table 1 can be fixed in position and locked by the locking handle 12 to form a fixed clamping table, and the second clamping table 10 is a free movable end so as to be adjusted to a proper position according to the axial length of the main shaft. The three-jaw chuck 2 is mounted on the rotation shafts of the first clamping tables 1 and 10 and can freely rotate with the rotation shafts. The centering V-shaped worktable 5 is arranged on a middle movable supporting platform 13 through a worm 7 and a guiding device 14 which are driven by a worm gear and a worm, the worm gear is arranged in a box body of the movable supporting platform 13, the round handle 9 can rotate the worm wheel to drive the worm 7 to realize the position adjustment of the ascending and descending of the centering V-shaped worktable 5, the guiding device 14 ensures that the centering V-shaped worktable 5 does not generate torsional movement when the position is adjusted up and down, thereby influencing the alignment of the axes of the two sections of broken main shafts, the roller 6 is arranged on the centering V-shaped workbench 5 and can freely rotate, used for supporting one end of a broken main shaft to be repaired, when the second clamping table 10 is moved along the guide rail, the broken main shaft to be repaired is driven to move along the axial direction and realize position adjustment, thereby reducing the friction force during the moving process and achieving the purpose of saving labor, and the content which is not described in detail in the specification belongs to the prior art which is known by the professional in the field.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (10)
1. The utility model provides a screw compressor main shaft restoration auxiliary fixtures that breaks, includes first clamping platform (1), high accuracy horizontal tester (4), locking handle (12) and supporting platform (13), its characterized in that: the first clamping table (1) and the second clamping table (10) are arranged on the upper surface of the guide rail (11), a first fracture main shaft (3) and a second fracture main shaft (8) are connected between the first clamping table (1) and the second clamping table (10), wherein,
the inner side surface of the first clamping table (1) and the second clamping table (10) is provided with a three-jaw chuck (2), one end of a first fracture main shaft (3) is arranged inside the three-jaw chuck (2) on one side of the first clamping table (1), the high-precision level tester (4) is arranged on the surface of the first fracture main shaft (3) close to the fracture part, the fracture end of the first fracture main shaft (3) is connected to the upper surface of the centering V-shaped workbench (5), a roller (6) is arranged inside the centering V-shaped workbench (5), the bottom of the centering V-shaped workbench (5) is connected with a worm (7), the fracture end of the second fracture main shaft (8) is connected to the upper surface of the centering V-shaped workbench (5), the connecting end of the second fracture main shaft (8) is arranged in the three-jaw (2) on the inner side of the second clamping table (10), the upper surface at guide rail (11) is installed to the bottom of second clamping platform (10), locking handle (12) are installed at first clamping platform (1) and second clamping platform (10) side surface, the upper surface at guide rail (11) is installed to the bottom of supporting platform (13), supporting platform (13) and to being provided with guider (14) between heart V type workstation (5), a side surface of supporting platform (13) is provided with circular handle (9), the bottom of worm (7) is connected inside supporting platform (13).
2. The screw compressor broken spindle repairing auxiliary tool according to claim 1, characterized in that: the first clamping table (1) and the second clamping table (10) are clamping tables with the same specification, and the first clamping table (1) and the second clamping table (10) are in sliding connection relative to the guide rail (11).
3. The screw compressor broken spindle repairing auxiliary tool according to claim 1, characterized in that: the three-jaw chuck (2) is provided with two on the inner sides of the first clamping table (1) and the second clamping table (10), and the 2 three-jaw chucks (2) are in concentric installation structural forms.
4. The screw compressor broken spindle repairing auxiliary tool according to claim 1, characterized in that: the high-precision horizontal tester (4) is arranged on the surface of the fracture part of the first fracture main shaft (3).
5. The screw compressor broken spindle repairing auxiliary tool according to claim 1, characterized in that: the centering V-shaped worktable (5) is in rotary connection with the worm (7) through a worm gear and a worm, and the worm (7) is in transmission connection with the circular handle (9).
6. The screw compressor broken spindle repairing auxiliary tool according to claim 1, characterized in that: two groups of rollers (6) are arranged in the V-shaped opening surface of the centering V-shaped worktable (5).
7. And the roller (6) is in rolling connection with the centering V-shaped worktable (5).
8. The screw compressor broken spindle repairing auxiliary tool according to claim 1, characterized in that: the bottom of the supporting platform (13) is connected with the guide rail (11) in a clamping and sliding manner.
9. A clamping and positioning method for a screw compressor broken main shaft repairing auxiliary tool is characterized by comprising the following steps:
s1, preliminarily calculating the height of a centering V-shaped workbench (5) according to the outer diameter size of a main shaft of a compressor, rotating a circular handle (9), and adjusting the upper position and the lower position of the centering V-shaped workbench (5) to ensure that the axis of the main shaft is overlapped with the axis of a three-jaw chuck (2) as much as possible after a broken main shaft is installed on a tool so as to reduce the later-stage adjustment time;
s2, moving a long section of first fracture main shaft (3) to be repaired to an auxiliary tool by using a traveling crane or other hoisting equipment, placing one end of the first fracture main shaft into the three-jaw chuck (2) and the other end of the first fracture main shaft into a V-shaped groove of the centering V-shaped workbench (5) and placing the first fracture main shaft on a roller (6), placing a high-precision horizontal tester (4) on the first fracture main shaft (3) to be repaired by adsorbing through a magnet (or the horizontal tester with magnetism) and approaching the fracture position as close as possible, slowly screwing one end of the main shaft through the three-jaw chuck (2), rotating the circular handle (9), adjusting the upper and lower positions of the centering V-shaped workbench (5) through the transmission of the worm (7), observing the display of the high-precision horizontal tester (4) while adjusting, and stopping rotating the circular handle (9) when the display data becomes zero or is within an allowable error range, the worm (7) and the worm wheel matched with the worm have a self-locking function, so that the centering V-shaped worktable (5) can keep the current position;
s3, moving another section of second fracture main shaft (8) to be repaired in fracture to an auxiliary tool by using a crane or other hoisting equipment, placing one end of the second fracture main shaft into a three-jaw chuck of a movable second clamping table (10), placing the other end (fracture end) on a roller of a centering V-shaped workbench (5), clamping the second fracture main shaft (8) to be repaired in fracture by using a three-jaw chuck (2), pushing the movable second clamping table (10), and adjusting the distance between the sections of the two sections of fracture main shafts to a proper position;
s4, observing the display data of the high-precision level (4) again to ensure that the display data are not changed or exceed the error range, and if the display data exceed the error range, rotating the circular handle (9) to adjust the upper position and the lower position of the centering V-shaped workbench (5);
s5, spot welding is carried out at a plurality of positions of the fracture surfaces of the two sections of main shafts, the spot welding is required to be firm, after the spot welding positions are cooled, welding and repairing are carried out on the two sections of fracture main shafts, and the mode of rotating the main shafts and repairing while welding is adopted until the fracture surfaces of the main shafts are completely welded together.
10. And after the position to be welded is completely cooled to room temperature, taking down the repaired spindle from the clamping table, and carrying out other processing treatments such as turning and the like until the repairing is finished.
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| CN201910348008.XA CN109940336A (en) | 2019-04-28 | 2019-04-28 | A kind of helical-lobe compressor fracture main shaft reparation auxiliary mould |
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| CN201910348008.XA CN109940336A (en) | 2019-04-28 | 2019-04-28 | A kind of helical-lobe compressor fracture main shaft reparation auxiliary mould |
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Cited By (11)
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| CN110773544A (en) * | 2019-12-09 | 2020-02-11 | 郭和俊 | Welding device for industrial machinery production |
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| CN111730247A (en) * | 2020-06-22 | 2020-10-02 | 河北西柏坡发电有限责任公司 | Auxiliary device for welding repair of spindle of rotary machine |
| CN112081803A (en) * | 2020-08-25 | 2020-12-15 | 西安近代化学研究所 | Device for improving coaxiality based on laser range finder |
| CN112536570A (en) * | 2020-10-30 | 2021-03-23 | 乳源东阳光磁性材料有限公司 | Worm repairing method and worm assembly |
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| CN112081803A (en) * | 2020-08-25 | 2020-12-15 | 西安近代化学研究所 | Device for improving coaxiality based on laser range finder |
| CN112536570A (en) * | 2020-10-30 | 2021-03-23 | 乳源东阳光磁性材料有限公司 | Worm repairing method and worm assembly |
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| CN114527144A (en) * | 2022-01-23 | 2022-05-24 | 安徽尚纬电缆有限公司 | Cable appearance defect on-line measuring equips |
| CN114833358A (en) * | 2022-04-06 | 2022-08-02 | 中信重工机械股份有限公司 | Method for finely machining large reducing slender shaft through horizontal lathe |
| CN114833358B (en) * | 2022-04-06 | 2023-11-14 | 中信重工机械股份有限公司 | Method for carrying out finish machining on long and thin shaft with large variable diameter through horizontal lathe |
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