Connecting structure of thrust disc and axial displacement disc of compressor
By machining and connecting the thrust disc and the rear main shaft as a whole, the problems of insufficient sleeve strength and machining complexity when the compressor rotor unit transmits axial force are solved, achieving structural stability and ease of machining.
Patent Information
- Application Number
- CN202423084746.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-13
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2034-12-13
AI Technical Summary
The thrust disc and shaft displacement disc of the existing compressor rotor assembly have problems such as insufficient sleeve strength and complicated processing when transmitting axial force, especially due to the structural instability and processing difficulty caused by the different diameter shaft design.
The thrust plate and the rear spindle are machined into a single unit and connected to the front spindle via locking components. Anti-rotation pins and stops are used for positioning to form an integral structure, ensuring coaxiality and strength.
The thrust disc and the rear spindle were machined as a whole, which improved the structural strength, simplified the machining process, and avoided the problem of insufficient sleeve strength.
Smart Images
Figure CN223662141U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to compressor technical field especially relates to a kind of connecting structure of compressor thrust disc and shaft displacement disc. BACKGROUND
[0002] When compressor operates, entire rotor set will generate axial thrust, need to design thrust disc on rotor set main shaft, generated thrust is transmitted to thrust bearing by thrust disc. Currently, one split type thrust disc and front and rear two sleeves are used to transmit axial force generated when compressor rotor set operates, since the front and rear of thrust disc are different diameter shafts, two unequal thickness thin sleeves need to be made to contact with the root end surface of split type thrust disc, so that axial force is transmitted to main shaft. Since axial force is not directly transmitted to main shaft, and sleeve cannot be made too thick due to structural limitation, there is the possibility of insufficient sleeve strength. When the axial force of compressor rotor set reverses, all axial forces are transmitted to rear end shaft displacement disc through the rear sleeve of split type thrust disc, axial force is not directly transmitted to main shaft, there is the possibility of insufficient strength of shaft displacement disc. When processing rotor set, due to the existence of sleeve, whether the inner diameter of sleeve can meet the operating deformation of main shaft and the coaxiality with main shaft need to be considered, resulting in complex processing procedure. SUMMARY
[0003] The utility model aims at providing a kind of connecting structure of compressor thrust disc and shaft displacement disc, and the rear end main shaft is processed as a whole with thrust disc, since it is integrally processed, strength is guaranteed.
[0004] In order to achieve the above-mentioned purpose, the technical scheme of the utility model is as follows: a kind of connecting structure of compressor thrust disc and shaft displacement disc, including main shaft body, thrust disc, shaft displacement disc and locking piece, the main shaft body includes split type front end main shaft and rear end main shaft, the thrust disc and rear end main shaft are integrally formed;The side of the front end main shaft close to the rear end main shaft is provided with connecting hole;The axial direction of the rear end main shaft is provided with the first through hole corresponding to the connecting hole, and the center of the thrust disc is provided with the second through hole corresponding to the first through hole;One side of the locking piece can pass through the second through hole, the first through hole in turn and be fixed with the connecting hole, and the end face of the other side of the locking piece is greater than the second through hole.
[0005] Further, the first stop is arranged between the front end main shaft and the rear end main shaft for positioning.
[0006] Further, the second stop is arranged between the rear end main shaft and the shaft displacement disc for positioning.
[0007] Further, the locking piece is a locking stud.
[0008] Further, the anti-rotation pin is arranged between the front end main shaft and the rear end main shaft.
[0009] Further, the shaft displacement disc is provided with a first anti-rotation hole, the locking disc of the locking member is provided with a second anti-rotation hole corresponding to the first anti-rotation hole, and the rear end main shaft is provided with a third anti-rotation hole corresponding to the first anti-rotation hole, and the anti-rotation member is fixed with the third anti-rotation hole after passing through the second anti-rotation hole and the first anti-rotation hole.
[0010] Further, the shaft displacement disc is provided with a first anti-rotation hole, the locking disc of the locking member is provided with a second anti-rotation hole corresponding to the first anti-rotation hole, and the rear end main shaft is provided with a third anti-rotation hole corresponding to the first anti-rotation hole, and the anti-rotation member is fixed with the third anti-rotation hole after passing through the second anti-rotation hole and the first anti-rotation hole.
[0011] The working principle of the technical solution is that the thrust disc is connected with the front end main shaft through the anti-rotation pin, then the shaft displacement disc is connected with the rear end main shaft and the front end main shaft into an integral whole through the locking member, and finally the anti-rotation member is connected and fixed with the third anti-rotation hole after passing through the second anti-rotation hole and the first anti-rotation hole.
[0012] The technical solution has the beneficial effects that:
[0013] 1) The thrust disc and the rear end main shaft are processed into an integral whole, and the coaxiality is ensured through the first stop opening with the front end main shaft. Since the integral whole is processed, the strength is ensured.
[0014] 2) The locking member passes through the integrally processed thrust disc, and the shaft displacement disc and the thrust disc are locked on the front end main shaft, thereby avoiding the problem of insufficient strength of the displacement disc. BRIEF DESCRIPTION OF DRAWINGS
[0015] Fig. 1 It is an exploded view of the connecting structure of the compressor thrust disc and the shaft displacement disc.
[0016] Fig. 2 It is a sectional view of the connecting structure of the compressor thrust disc and the shaft displacement disc. DETAILED DESCRIPTION
[0017] The specific embodiments are further described in detail as follows:
[0018] The reference signs in the drawings of the specification include: the front end main shaft 1, the rear end main shaft 2, the thrust disc 3, the shaft displacement disc 4, the locking member 5, the connecting hole 6, the first through hole 7, the second through hole 8, the anti-rotation pin 9, the anti-rotation member 10, the counterweight 11, the first anti-rotation hole 12, the second anti-rotation hole 13, the third anti-rotation hole 14, the fourth anti-rotation hole 15, the fifth anti-rotation hole 16, the first stop opening 17, and the second stop opening 18.
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0020] The basic implementation examples are as follows: Figs. 1-2 The diagram illustrates a connection structure for a compressor thrust disc and axial displacement disc, comprising a main shaft body, a thrust disc 3, an axial displacement disc 4, and a locking component 5. The main shaft body includes a split front main shaft 1 and a rear main shaft 2, with the thrust disc 3 and the rear main shaft 2 integrally formed. The front main shaft 1 has a connecting hole 6 on its side near the rear main shaft 2; the rear main shaft 2 has a first through hole 7 corresponding to the connecting hole 6 along its axial direction; the thrust disc 3 has a second through hole 8 corresponding to the first through hole 7 at its center; one side of the locking component 5 can pass through the second through hole 8 and the first through hole 7 sequentially and then be fixed to the connecting hole 6; the other end face (locking disc) of the locking component 5 is larger than the second through hole 8. The locking component 5 uses a locking stud.
[0021] A first stop 17 is provided between the front spindle 1 and the rear spindle 2 for positioning, and a second stop 18 is provided between the rear spindle 2 and the axial displacement disk 4 for positioning.
[0022] An anti-rotation pin 9 is provided between the front spindle 1 and the rear spindle 2. Specifically, the end face of the front spindle 1 is provided with a fourth anti-rotation hole 15, and the end face of the rear spindle 2 is provided with a fifth anti-rotation hole 16 corresponding to the fourth anti-rotation hole 15. The anti-rotation pin 9 is installed in the fourth anti-rotation hole 15 and the fifth anti-rotation hole 16.
[0023] The axial displacement disk 4 is provided with a first anti-rotation hole 12, and the locking disk of the locking member 5 is provided with a second anti-rotation hole 13 corresponding to the first anti-rotation hole 12. One end of the rear spindle 2 is provided with a third anti-rotation hole 14 corresponding to the first anti-rotation hole 12. The anti-rotation member 10 passes through the second anti-rotation hole 13 and the first anti-rotation hole 12 and is then fixed to the third anti-rotation hole 14. Specifically, the third anti-rotation hole 14 is a threaded hole, and the anti-rotation member 10 is an anti-rotation screw. The threaded section of the anti-rotation screw passes through the second anti-rotation hole 13 and the first anti-rotation hole 12 and is then threadedly connected to the third anti-rotation hole 14. The anti-rotation screw can be completely located within the second anti-rotation hole 13.
[0024] The axial displacement disk 4 has several counterweight holes in its circumference, and counterweights 11 are provided in the counterweight holes. Specifically, the counterweights 11 are counterweight nuts.
[0025] The specific implementation process is as follows:
[0026] The thrust disc 3 is connected with the front end spindle 1 through the anti-rotation pin 9, the rear shaft displacement disc 4 is connected with the rear end spindle 2 and the front end spindle 1 into a whole through the locking member 5, and finally the anti-rotation member 10 is connected and fixed with the third anti-rotation hole 14 after passing through the second anti-rotation hole 13 and the first anti-rotation hole 12.
[0027] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another, without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.
[0028] The above is only the embodiment of the present application, and the common knowledge of the specific structure and characteristics in the scheme is not described in detail, the ordinary skilled in the art knows all the ordinary technical knowledge in the technical field of the present application before the filing date or the priority date, can know all the prior art in the field and has the ability to apply the conventional experimental means before the date, the ordinary skilled in the art can improve and implement the present scheme under the inspiration given by the present application combined with their own ability, some typical known structures or known methods should not be an obstacle for the ordinary skilled in the art to implement the present application. It should be pointed out that for those skilled in the art, without departing from the structure of the present application, a number of modifications and improvements can be made, which should also be considered as the protection scope of the present application, which will not affect the effect and practicality of the present application. The protection scope of the present application should be subject to the content of its claims, and the specific implementation mode and the like in the specification can be used to explain the content of the claims.
Claims
1. A connection structure for a compressor thrust disc and a shaft displacement disc, characterized in that: The device includes a main spindle body, a thrust plate (3), a axial displacement plate (4), and a locking member (5). The main spindle body includes a split front spindle (1) and a rear spindle (2). The thrust plate (3) and the rear spindle (2) are integrally formed. The front spindle (1) has a connecting hole (6) on one side near the rear spindle (2). The rear spindle (2) has a first through hole (7) corresponding to the connecting hole (6) in the axial direction. The center of the thrust plate (3) has a second through hole (8) corresponding to the first through hole (7). One side of the locking member (5) can pass through the second through hole (8) and the first through hole (7) in sequence and then be fixed to the connecting hole (6). The end face of the other side of the locking member (5) is larger than the second through hole (8).
2. The connection structure of a compressor thrust disc and shaft displacement disc according to claim 1, characterized in that: A first stop (17) is provided between the front spindle (1) and the rear spindle (2) for positioning.
3. The connection structure of a compressor thrust disc and shaft displacement disc according to claim 1, characterized in that: A second stop (18) is provided between the rear spindle (2) and the axial displacement disk (4) for positioning.
4. The connection structure of a compressor thrust disc and shaft displacement disc according to claim 1, characterized in that: The locking component (5) is a locking stud.
5. The connection structure of a compressor thrust disc and shaft displacement disc according to claim 1, characterized in that: An anti-rotation pin (9) is provided between the front spindle (1) and the rear spindle (2).
6. The connection structure of a compressor thrust disc and shaft displacement disc according to claim 1, characterized in that: The axial displacement disk (4) is provided with a first anti-rotation hole (12), the locking disk of the locking member (5) is provided with a second anti-rotation hole (13) corresponding to the first anti-rotation hole (12), the rear spindle (2) is provided with a third anti-rotation hole (14) corresponding to the first anti-rotation hole (12), and the anti-rotation member (10) passes through the second anti-rotation hole (13) and the first anti-rotation hole (12) and is fixed with the third anti-rotation hole (14).
7. The connection structure of a compressor thrust disc and shaft displacement disc according to claim 1, characterized in that: The axial displacement disk (4) is provided with a plurality of counterweight holes in its circumference, and counterweights (11) are provided in the counterweight holes.