CN109605276B - Device for disassembling locking ring on compressor rotor - Google Patents
Device for disassembling locking ring on compressor rotor Download PDFInfo
- Publication number
- CN109605276B CN109605276B CN201910098472.8A CN201910098472A CN109605276B CN 109605276 B CN109605276 B CN 109605276B CN 201910098472 A CN201910098472 A CN 201910098472A CN 109605276 B CN109605276 B CN 109605276B
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- CN
- China
- Prior art keywords
- coupler
- locking ring
- rear shaft
- rod
- compressor rotor
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
Abstract
The invention discloses a device for disassembling a locking ring on a compressor rotor, which comprises a connector and a pull rod arranged at the center of the top of the connector, wherein the pull rod is used for applying upward thrust to the connector; the coupler is of a barrel-shaped structure with an opening at the bottom, the inner diameter of the coupler is matched with the outer diameter of the high-pressure rear shaft, and external threads used for being connected with the locking ring are arranged on the outer wall of the coupler. The pull rod generates upward thrust to the connector, so that the locking ring is separated from the spline nut, disassembly is completed, and meanwhile, the pull rod is arranged at the center of the connector, so that the phenomenon that the locking ring deflects obliquely in the disassembly process is avoided, the single-point stress condition cannot occur in the disassembly process, a good protection effect is achieved on the locking ring, the spline nut and the high-pressure rear shaft, and part damage is avoided. The device simple structure, the dismantlement method is convenient, has improved dismantlement efficiency, has reduced operating personnel's intensity of labour.
Description
Technical Field
The invention belongs to the field of maintenance of aero-engines, and particularly relates to a device for disassembling a locking ring on a rotor of a gas compressor.
Background
The high-pressure compressor rotor is used as a main component of an engine and comprises a high-pressure rear shaft and a coupler 7 arranged on the circumferential surface of the high-pressure rear shaft, an annular blind cavity is formed between the coupler and the high-pressure rear shaft, a spline nut is arranged in the blind cavity and used for axially positioning the coupler, internal threads are arranged on the inner side of the spline nut, the spline nut is connected with the high-pressure rear shaft through threads, an annular positioning ring is arranged on the top surface of the spline nut, an internal spline is arranged on the positioning ring, an annular gap is formed between the internal spline and the circumferential surface of the high-pressure rear shaft, a locking ring is arranged in the gap and used for axially positioning the spline nut and preventing the spline nut from rotating, the locking ring is sleeved on the high-pressure rear shaft, the bottom surface of the locking ring is in contact with the top surface of the spline nut, an external spline, the top of the locking ring is provided with an annular step, and the inner part of the locking ring is provided with internal threads for connecting other parts.
But in the dismantlement and the assembling process of engine, need dismantle the locking ring many times, because the locking ring passes through the spline and installs in the annular space that spline nut and high-pressure rear axle formed, this annular space is blind chamber and interval is less, and the operation degree of difficulty is big when consequently dismantling, and current dismantlement technology is: the locking ring is pried upwards by adopting blind operation and a screwdriver, the hand is easy to deflect, no force is needed, especially the engine reaches the service life or after test run, the locking ring is difficult to decompose due to working under the environment of high temperature, high pressure and high corrosion, the tightness is very high, the scrapping of the locking ring and the damage of the high-pressure rotor rear shaft and the fixing nut are easily caused, the repair of the high-pressure rotor rear shaft is finally caused, the high-pressure rotor assembly is decomposed in serious cases, the high-pressure rotor rear shaft is repaired, the production progress is influenced, and the repair cost is increased.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a device for disassembling a locking ring on a compressor rotor, which optimizes a disassembling process method, improves disassembling efficiency and reduces labor intensity.
The invention is realized by the following technical scheme:
a device for disassembling a locking ring on a compressor rotor comprises a coupler and a pull rod arranged at the top of the coupler, wherein the pull rod is used for applying upward thrust to the coupler;
the coupler is of a barrel-shaped structure with an opening at the bottom, the inner diameter of the coupler is matched with the outer diameter of the high-pressure rear shaft, and external threads used for being connected with the locking ring are arranged on the outer wall of the coupler.
Optionally, a distance ring is arranged on the external thread of the coupler and used for controlling the length of the external thread of the coupler.
Optionally, the threaded connection length of the coupler and the locking ring is 2.5 mm.
Optionally, the external thread of the coupler has a size of M125 and a length of 12.5 mm.
Optionally, the distance ring is connected to the coupling by a thread, and has a height of 10 mm.
Optionally, the pull rod comprises a lifting hammer, a handle and a connecting rod;
the lower extreme and the connector of connecting rod are connected, and the handle setting is at the top of connecting rod, and the diameter of handle is greater than the diameter of connecting rod, and the hammer of carrying is hollow cylinder, carries the hammer suit and can slide on the connecting rod.
Optionally, a threaded hole is formed in the center of the top of the coupler, and the lower end of the pull rod is connected with the coupler through threads.
Optionally, a knurl is arranged on the surface of the lifting hammer.
Optionally, the pull rod is a threaded rod, a threaded hole is formed in the center of the coupler, the threaded rod is assembled in the threaded hole, when the coupler is used, the lower end of the threaded rod abuts against the top surface of the high-pressure rear shaft, and the coupler can move upwards along the threaded rod by rotating the threaded rod.
Optionally, a horizontal driving rod is arranged at the top of the threaded rod.
Compared with the prior art, the invention has the following beneficial technical effects:
the device for disassembling the locking ring on the compressor rotor comprises a connector and a pull rod, wherein the connector is connected with the locking ring through threads, then upward thrust is generated on the connector through the pull rod, the locking ring is separated from the spline nut, and then the disassembly is completed, meanwhile, because the pull rod is arranged at the center of the connector, the phenomenon that the locking ring does not incline and deflect in the disassembly process is ensured, the condition of single-point stress cannot occur in the disassembly process, a good protection effect is realized on the locking ring 5, the spline nut 6 and the high-pressure rear shaft 8, and the damage to parts is avoided. The device simple structure, the dismantlement method is convenient, has improved dismantlement efficiency, has reduced operating personnel's intensity of labour.
The hammer is lifted to reciprocate up and down along the connecting rod, upward impact force is generated on the handle, and the locking ring is separated from the spline nut, so that the pull rod is simple to operate and easy to machine.
Drawings
FIG. 1 is a schematic view of the structure of the apparatus of the present invention.
In the figure: 1. a coupler; 2. a distance ring; 3. lifting a hammer; 4. a handle; 5. locking a ring; 6. a spline nut; 7. a coupling; 8. a high pressure rear axle.
Detailed Description
The present invention will now be described in further detail with reference to the attached drawings, which are illustrative, but not limiting, of the present invention.
As shown in fig. 1, a device for removing a locking ring on a compressor rotor comprises a coupling 1 and a tie rod mounted on the top thereof.
Wherein, the coupler 1 is a barrel structure with an open bottom, the diameter of the inner wall of the coupler 1 is matched with the outer diameter of the high-pressure rear shaft 8, the bottom of the outer side wall of the coupler 1 is provided with an external thread which is matched with the internal thread of the locking ring 5, and the coupler 1 is connected with the locking ring 5 through the thread.
The side wall of the coupler 1 is a stepped hollow shaft and comprises a fastening section, a connecting section and a high-pressure rear shaft, wherein the fastening section is arranged at the bottom of the hollow shaft, the diameter of the connecting section is larger than that of the fastening section, the wall thickness of the connecting section is the same as the gap between the internal thread of the locking ring 5 and the outer side wall of the high-pressure rear shaft, and the gap is smaller, so that the strength of the coupler 1 can be effectively increased, and the processing is easier; the external screw thread sets up on the lateral wall of fastening section, still is provided with distance ring 2 on the fastening section, and distance ring 2 is connected with the fastening section through the screw thread, and the top surface and the shaft shoulder of distance ring 2 link firmly, and the holding ring is used for controlling the length of external screw thread, makes the internal thread length that its screw thread equals to be less than locking ring 5, can have the intensity that improves 1 fastening end of coupler simultaneously to reduce the processing degree of difficulty of screw thread.
The length of the external thread of the coupling 1 is 12.5mm of the M125 external thread and the height of the distance ring 2 is 10mm, so that the length of the thread at the lower end of the coupling is 2.5 mm.
The distance ring 2 is fixed to the coupling 1 by welding.
The top center of the coupler 1 is provided with a threaded connection hole for connecting a pull rod, and the pull rod is connected with the coupler through threads.
The pull rod comprises a lifting hammer 3, a handle 4 and a connecting rod; the lower extreme of connecting rod passes through the threaded connection hole of screw thread and coupler to be connected, and handle 4 sets up at the top of connecting rod, and the diameter of handle is greater than the diameter of connecting rod, and the hammer 3 of carrying is hollow cylinder, and the diameter of its hole and the diameter phase-match of connecting rod carry the hammer 3 suit on the connecting rod.
Knurling is arranged on the circumferential surface of the lifting hammer 3 to increase friction force. The diameter of the inner hole of the lifting hammer 3 is phi 25. The lower end of the pull rod is threaded M12.
When the lifting hammer is used, the external thread at the lower end of the coupler 1 is connected with the internal thread of the locking ring, the lifting hammer 3 is sleeved on the connecting rod, then the lower end of the connecting rod is connected with the threaded connecting hole in the center of the coupler through threads, the lifting hammer 3 is operated to move upwards to impact the handle 4, the locking ring 5 is separated from the spline nut through the generated upwards impact force, and then the disassembly is completed.
The impact force generated by the vertical reciprocating motion of the lifting hammer 3 along the connecting rod is always positioned in the center of the locking ring 5, so that the phenomenon of inclined deflection of the locking ring 5 in the decomposition process is avoided; in addition, because the external thread at the bottom of the coupler 1 is matched with the internal thread of the locking ring 5, the condition of single-point stress cannot occur in the dismounting process, the parts such as the locking ring 5, the spline nut, the high-pressure rear shaft 8 and the like are well protected, and the parts are prevented from being damaged.
In another embodiment, the pull rod is a threaded rod, the diameter of the thread is matched with the mounting hole of the coupler, the pull rod is mounted on the top of the coupler 1, and the top of the threaded rod is provided with a transverse rotating rod.
When the coupler is used, the threaded rod is installed in the installation hole in the top of the coupler, the threaded rod moves downwards by rotating the rotating rod, the lower end of the threaded rod is fixed on the top surface of the high-pressure rear shaft 8, the threaded rod continues to rotate, the coupler moves upwards along the threads, and then the locking ring 5 is separated from the spline nut through the coupler, and disassembly is completed.
The above-mentioned contents are only for illustrating the technical idea of the present invention, and the protection scope of the present invention is not limited thereby, and any modification made on the basis of the technical idea of the present invention falls within the protection scope of the claims of the present invention.
Claims (6)
1. A device for disassembling a locking ring on a compressor rotor is characterized in that the compressor rotor comprises a high-pressure rear shaft and a coupler arranged on the circumferential surface of the high-pressure rear shaft, an annular blind cavity is formed between the coupler and the high-pressure rear shaft, a spline nut is arranged in the blind cavity and connected with the high-pressure rear shaft, the top surface of the spline nut is provided with the positioning ring, an annular gap is formed between the positioning ring and the circumferential surface of the high-pressure rear shaft, a locking ring is arranged in the gap and sleeved on the high-pressure rear shaft, the locking ring is meshed with the spline nut through an external spline, and internal threads are arranged on the inside of the locking;
the device comprises a coupler (1) and a pull rod arranged at the center of the top of the coupler, wherein the pull rod is used for applying upward thrust to the coupler (1);
the coupler (1) is of a barrel-shaped structure with an opening at the bottom, the inner diameter of the coupler is matched with the outer diameter of the high-pressure rear shaft (8), and the outer wall of the coupler (1) is provided with an external thread for connecting with the locking ring (5);
a distance ring (2) is arranged on the external thread of the coupler (1) and is used for controlling the length of the external thread of the coupler;
the threaded connection length of the coupler (1) and the locking ring (5) is 2.5 mm;
the specification of the external thread of the coupler (1) is M125, and the length of the external thread is 12.5 mm;
the distance ring (2) is connected with the coupler through threads, and the height of the distance ring is 10 mm.
2. The device for removing the locking ring on the compressor rotor according to claim 1, characterized in that the tie rod comprises a lifting hammer (3), a handle (4) and a connecting rod;
the lower extreme and the connector of connecting rod are connected, and handle (4) set up at the top of connecting rod, and the diameter of handle is greater than the diameter of connecting rod, and it is hollow cylinder to carry hammer (3), carries hammer (3) suit and can slide on the connecting rod.
3. The device for removing the locking ring on the compressor rotor according to claim 2, wherein the center of the top of the coupler is provided with a threaded hole, and the lower end of the tie rod is connected with the coupler (1) through a thread.
4. Device for removing a locking ring on a compressor rotor according to claim 2, characterised in that the surface of the lifting hammer (3) is provided with knurling.
5. Device for dismounting a locking ring on a compressor rotor according to claim 1, characterised in that the pull rod is a threaded rod, the coupling (1) is provided with a threaded hole in its centre, the threaded rod fits into the threaded hole, the lower end of the threaded rod, in use, rests against the top surface of the high-pressure rear shaft (8), and the rotation of the threaded rod causes the coupling to move upwards along the threaded rod.
6. The apparatus for removing a locking ring from a compressor rotor as set forth in claim 5, wherein a horizontal drive rod is provided on the top of said threaded rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910098472.8A CN109605276B (en) | 2019-01-31 | 2019-01-31 | Device for disassembling locking ring on compressor rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910098472.8A CN109605276B (en) | 2019-01-31 | 2019-01-31 | Device for disassembling locking ring on compressor rotor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109605276A CN109605276A (en) | 2019-04-12 |
| CN109605276B true CN109605276B (en) | 2021-06-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910098472.8A Active CN109605276B (en) | 2019-01-31 | 2019-01-31 | Device for disassembling locking ring on compressor rotor |
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| Country | Link |
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| CN (1) | CN109605276B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110216624B (en) * | 2019-06-20 | 2023-06-16 | 南昌矿机集团股份有限公司 | Device and method for mounting or dismounting upper frame of single-cylinder hydraulic cone crusher |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060272140A1 (en) * | 2005-06-01 | 2006-12-07 | Kang Hsin F | Positioning pin removing tool for vehicles |
| CN201176904Y (en) * | 2008-04-11 | 2009-01-07 | 广西玉柴机器股份有限公司 | Fuel injector dismounting tool equipment |
| CN202292629U (en) * | 2011-10-14 | 2012-07-04 | 唐山海泰新能科技有限公司 | Pin removal device |
| CN202318210U (en) * | 2011-11-19 | 2012-07-11 | 中国石油化工股份有限公司胜利油田分公司孤岛采油厂 | Impact-vibration-type puller for pin shaft |
| CN203973475U (en) * | 2014-06-25 | 2014-12-03 | 中国神华能源股份有限公司 | Pin removal |
| CN205043713U (en) * | 2015-10-14 | 2016-02-24 | 宣化钢铁集团有限责任公司 | Frock is dismantled to wedge hook bolt |
| CN107791200A (en) * | 2016-08-29 | 2018-03-13 | 天津安捷公共设施服务有限公司 | Drawbench |
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2019
- 2019-01-31 CN CN201910098472.8A patent/CN109605276B/en active Active
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| CN109605276A (en) | 2019-04-12 |
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