CN-224214425-U - Thrust disk installation locking structure

CN224214425UCN 224214425 UCN224214425 UCN 224214425UCN-224214425-U

Abstract

The utility model belongs to the technical field of compressors, and particularly discloses a thrust disc mounting and locking structure which comprises a first shaft sleeve, a second shaft sleeve, a displacement measuring disc, a stop washer and a threaded locking piece which are sequentially arranged, wherein one side of a main shaft is sequentially provided with five steps, the first shaft sleeve is in interference fit with the first step of the main shaft, the thrust disc is connected with the second step of the main shaft through a key, the second shaft sleeve is in interference fit with the third step of the main shaft, the displacement measuring disc is in interference fit with the fourth step of the main shaft, the stop washer is connected with the fifth step of the main shaft through a key, the fifth step of the main shaft is provided with an external thread, the threaded locking piece is in threaded connection with the external thread, and adjacent sides of the first shaft sleeve, the thrust disc, the second shaft sleeve, the displacement measuring disc, the stop washer and the threaded locking piece are abutted. The detachable type hydraulic cylinder can be detached without special tools, and is faster in speed, simpler in structure and lower in assembly requirement.

Inventors

ZHAO SHUANG
Kang Zhangyuan
HOU YANLIANG

Assignees

重庆通用工业(集团)有限责任公司

Dates

Publication Date: 20260508
Application Date: 20241213

Claims (2)

1. A thrust disc mounting and locking structure is characterized by comprising a first shaft sleeve (1), a second shaft sleeve (4), a displacement measuring disc (5), a stop washer (6) and a threaded locking piece (7) which are sequentially arranged, wherein five steps are sequentially arranged on one side of a main shaft (3), the first shaft sleeve (1) is in interference fit with the first step of the main shaft (3), the second step of the thrust disc (2) and the second step of the main shaft (3) are in key connection, the second shaft sleeve (4) is in interference fit with the third step of the main shaft (3), the displacement measuring disc (5) is in interference fit with the fourth step of the main shaft (3), the stop washer (6) is in key connection with the fifth step of the main shaft (3), an external thread is arranged on the fifth step of the main shaft (3), the threaded locking piece (7) is in threaded connection with the external thread, and the adjacent sides of the first shaft sleeve (1), the second shaft sleeve (4), the displacement measuring disc (5), the stop washer (6) and the stop washer (7) are abutted against the external thread of the main shaft (3) in the opposite direction.
2. A thrust disc mounting and locking structure according to claim 1, wherein the threaded locking member (7) is a nut.

Description

Thrust disk installation locking structure Technical Field The utility model belongs to the technical field of compressors, and particularly relates to a thrust disc mounting and locking structure. Background As known, a centrifugal compressor is a rotary machine, a rotor set is driven by a driving machine to rotate so as to apply work to gas, the gas itself has an axial thrust to the rotor set, and a thrust disc is used for bearing the thrust generated by the gas so as to ensure the safe operation of a unit. In some cases, the thrust disc needs to be frequently disassembled and assembled. Conventional thrust discs require the use of hydraulic equipment to achieve hydraulic assembly. Disclosure of utility model The utility model aims to provide a thrust disc mounting and locking structure which ensures safety and reliability and can be quickly disassembled. In order to achieve the purpose, the technical scheme includes that the thrust disc mounting and locking structure comprises a first shaft sleeve, a second shaft sleeve, a displacement measuring disc, a stop washer and a threaded locking piece which are sequentially arranged, five steps are sequentially arranged on one side of a main shaft, the first shaft sleeve is in interference fit with the first step of the main shaft, the thrust disc is in interference fit with the second step of the main shaft, the second shaft sleeve is in interference fit with the third step of the main shaft, the displacement measuring disc is in interference fit with the fourth step of the main shaft, the stop washer is in interference fit with the fifth step of the main shaft, an external thread is arranged on the fifth step of the main shaft, the threaded locking piece is in threaded connection with the external thread, and adjacent sides of the first shaft sleeve, the thrust disc, the second shaft sleeve, the displacement measuring disc, the stop washer and the threaded locking piece are abutted. Further, the threaded locking member is a nut. Further, the external thread has a direction opposite to the direction of rotation of the main shaft. The working principle and the beneficial effects of the technical scheme are that when the unit operates, the thrust disc bears the axial force exerted by gas on the rotor, and the axial friction force generated by the nut and the stop washer always exists, so that the thrust disc is prevented from relatively moving, and the assembly gap of the thrust bearing is ensured to be unchanged. The first shaft sleeve is matched with the main shaft through transition fit, the thrust disc is connected with the main shaft through a key, the second shaft sleeve is matched with the main shaft through transition fit, the displacement measuring disc is matched with the main shaft through transition fit, the stop washer is connected with the main shaft through a key, quick disassembly and assembly are guaranteed, and traditional hydraulic assembly can be completed through special hydraulic equipment. Drawings Fig. 1 is a schematic structural view of a thrust disc mounting and locking structure according to the present utility model. Detailed Description The following is a further detailed description of the embodiments: the reference numerals in the drawings of the specification comprise a first shaft sleeve 1, a thrust disc 2, a main shaft 3, a second shaft sleeve 4, a displacement measuring disc 5, a stop washer 6 and a thread locking member 7. The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model. The embodiment is basically as shown in figure 1, and the thrust disc mounting and locking structure comprises a first shaft sleeve 1, a second shaft sleeve 4, a displacement measuring disc 5, a stop washer 6 and a thread locking member 7 which are sequentially arranged, wherein one side of a main shaft 3 is sequentially provided with five steps, the first shaft sleeve 1 is in interference fit with the first step of the main shaft 3, the second step of the thrust disc 2 and the second step of the main shaft 3 are in key connection (the thrust disc 2 can be prevented from moving when a rotor rotates when the rotor is convenient to dismount), the second shaft sleeve 4 is in interference fit with the third step of the main shaft 3, the displacement measuring disc 5 is in interference fit with the fourth step of the main shaft 3, the stop washer 6 is in key connection with the fifth step of the main shaft 3, the fifth step of the main shaft 3 is provided with external threads, the rotation direction of the external thread