Aviation gear with good installation stability
By setting up mounting barrels and fastening bolts on the annular side bodies at both ends of the aircraft gear main body, combined with the design of compression springs and positioning grooves, the problem of unstable connection between the gear and the shaft body is solved, and a more stable power transmission and transmission system is achieved.
Patent Information
- Application Number
- CN202422593734.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-27
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-10-27
AI Technical Summary
The installation between the existing aero gears and the connecting shaft body is not tight and stable enough, resulting in unstable power transmission and easy sliding and friction, affecting the reliability and stability of the transmission system.
An aviation gear structure is designed. By installing a mounting cylinder on the annular side body at both ends of the gear body, connecting rods and fastening bolts are installed inside, and using the cooperation of compression springs and positioning grooves, the firm connection between the gear and the shaft body is achieved to prevent loosening.
It improves the installation tightness and stability between the gear and the shaft body, ensures the stability of power transmission and the reliability of the transmission system, and reduces the occurrence of faults.
Smart Images
Figure CN223152695U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of gears, in particular to an aviation gear with good installation stability. Background Art
[0002] Gear is a mechanical component, usually used to transmit power and motion. It is the most widely used mechanical transmission method. Its transmission is relatively accurate, efficient, compact, reliable and has a long service life. Therefore, it has extremely high value in the aerospace field. Gears are usually installed on connecting shafts, and the gears need to be tightly and firmly connected to the connecting shafts to ensure smooth and efficient power transmission, and reduce sliding and friction during power transmission to ensure the stability and reliability of the transmission system and reduce the occurrence of failures. Therefore, designing a gear that is precisely and firmly connected to the connecting shaft and is stable is one of the problems that need to be solved urgently. Utility Model Content
[0003] The technical problem to be solved by the utility model is to provide an aviation gear with good installation stability in view of the above defects. The installation between the gear and the shaft body is tight, firm and stable, so that the transmission system is more stable and reliable.
[0004] The technical solution adopted by the utility model to solve its technical problems is as follows: an aviation gear with good installation stability, including a gear body and a shaft body, a mounting hole matching the shaft body is opened at the center of the gear body, annular side bodies arranged concentrically with the mounting hole are arranged at both ends of the gear body, the annular side bodies are arranged at intervals with the mounting holes, and a plurality of mounting cylinders are annularly arranged on the annular side bodies, a connecting rod is slidably arranged at one end of the mounting cylinder close to the shaft body, a fastening bolt is threadedly connected to one end of the mounting cylinder away from the shaft body, a compression spring is arranged between the fastening bolt and the connecting rod, and a positioning groove matching the connecting rod is opened on the outer surface of the shaft body.
[0005] Furthermore, a slide groove is provided on one end of the inner wall of the installation tube close to the shaft body, a slider is provided on the connecting rod inside the installation tube, one end of the compression spring is in conflict with the fastening bolt, and the other end is in conflict with the slider.
[0006] Furthermore, the fastening bolt is threadedly connected to the inner wall of the mounting tube to generate a compression force on the compression spring. Under the action of the compression spring force, one end of the connecting rod passes through the mounting tube and extends to the inside of the positioning groove.
[0007] Furthermore, an upper limit member and a lower limit member in a semi-arc structure are symmetrically arranged on the outer surface of the annular edge body, and the upper limit member and the lower limit member form a circular ring structure.
[0008] Further, upper connecting plates are symmetrically arranged on both sides of the upper limiting member, lower connecting plates are arranged on both sides of the lower limiting member, and the bottom end of the upper connecting plate abuts against the top end of the lower connecting plate.
[0009] Further, a connecting arm is arranged at the bottom end of the upper connecting plate, a first clamping block is arranged at the bottom end of one side of the connecting arm, an installation groove is formed at the top end of the lower connecting plate, a second clamping block is arranged at the top end of the inner wall of the installation groove close to the first clamping block, a first driving inclined surface is formed at the bottom end of the first clamping block close to the second clamping block, and a second driving inclined surface is formed at the top end of the second clamping block close to the first clamping block.
[0010] The beneficial effects of the utility model are as follows:
[0011] Through the cooperative setting of the annular edge body, the installation cylinder, the connecting rod, the fastening bolt, the compression spring and the positioning groove, after the shaft body and the gear main body are installed, the fastening bolt is in threaded connection with the installation cylinder, squeezing the compression spring, causing it to undergo elastic deformation, and then driving the connecting rod to move along the installation cylinder towards the positioning groove on the shaft body. After the stud part of the fastening bolt is completely in threaded connection with the installation cylinder, the compression spring is compressed to the extreme, enabling the connecting rod to be engaged with the positioning groove. Moreover, the compression spring always exerts a driving force, making the connecting rod firmly engaged with the positioning groove. And the force in the reverse direction of the compression spring makes the external thread of the fastening bolt closely fit with the internal thread of the installation cylinder, not easily loosening due to external force, making the installation between the gear and the shaft body tight, firm and stable, and making the transmission system more stable and reliable. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Through the following detailed description in conjunction with the drawings, the foregoing and other objects, features and advantages of the present utility model will become apparent.
[0013] Figure 1 It is a front view cross-sectional view of the present utility model.
[0014] Figure 2 It is Figure 1 a schematic enlarged view of the structure at A of
[0015] Figure 3 It is Figure 1 a schematic enlarged view of the structure at B of
[0016] Wherein: 1. Gear main body; 101. Installation hole; 2. Shaft body; 201. Positioning groove; 3. Annular edge body; 4. Installation cylinder; 401. Shaft body; 402. Fastening bolt; 403. Compression spring; 404. Chute; 405. Slide block; 5. Upper limiting member; 501. Upper connecting plate; 502. Connecting arm; 503. First clamping block; 504. First driving inclined surface; 6. Lower limiting member; 601. Lower connecting plate; 602. Installation groove; 603. Second clamping block; 604. Second driving inclined surface. Detailed implementation mode
[0017] The following further describes the present utility model with reference to the accompanying drawings.
[0018] Refer to Figures 1-3 As shown, an aviation gear with good installation stability includes a gear body 1 and a shaft body 2. An installation hole 101 matching the shaft body 2 is provided at the center of the gear body 1. The gear body 1 and the shaft body 2 can be in interference fit. Ring-shaped bodies 3 concentric with the installation hole 101 are provided at both ends of the gear body 1. The ring-shaped bodies 3 and the installation hole 101 are arranged at intervals. A plurality of installation cylinders 4 are annularly arranged on the ring-shaped bodies 3. The installation cylinders 4 are integrally formed with the ring-shaped bodies 3. Both ends of the installation cylinder extend to both ends outside the ring-shaped body 3. A connecting rod 401 is slidably arranged at one end of the installation cylinder 4 close to the shaft body 2. A fastening bolt 402 is threadedly connected to the end of the installation cylinder 4 far from the shaft body 401. A compression spring 403 is arranged between the fastening bolt 402 and the connecting rod 401. A positioning groove 201 matching the connecting rod 401 is provided on the outer surface of the shaft body 2. A sliding groove 404 is provided at one end of the inner wall of the installation cylinder 4 close to the shaft body 2. A sliding block 405 is arranged on the connecting rod 401 inside the installation cylinder 4. One end of the compression spring 403 abuts against the fastening bolt 402, and the other end abuts against the sliding block 405. The fastening bolt 402 is threadedly connected to the inner wall of the installation cylinder 4, generating a pressing force on the compression spring 403. Under the action of the force of the compression spring 403, one end of the connecting rod 401 penetrates through the installation cylinder 4 and extends into the positioning groove 201. An inner hexagonal groove is provided on the screw head of the fastening bolt 402. By threadedly connecting the fastening bolt 402 with the installation cylinder 4, the compression spring 403 is squeezed to cause elastic deformation, and then the connecting rod 401 is driven to move along the installation cylinder 4 towards the positioning groove 201 on the shaft body 2. After the stud part of the fastening bolt 402 is completely threadedly connected to the installation cylinder 4, the compression spring 403 is compressed to the extreme, so that the connecting rod 401 is engaged with the positioning groove 201. And the compression spring 403 always exerts a driving force, so that the connecting rod 401 is firmly engaged with the positioning groove 201. And the force in the reverse direction of the compression spring 403 makes the external thread of the fastening bolt 402 closely fit with the internal thread of the installation cylinder 4, and it is not easy to loosen due to external force, making the installation between the gear and the shaft body tight, firm and stable, and making the transmission system more stable and reliable.
[0019] Semicircular upper limit pieces 5 and lower limit pieces 6 are symmetrically arranged on the outer surface of the ring-shaped body 3. The upper limit pieces 5 and the lower limit pieces 6 form a circular ring structure. The inner walls of the upper limit pieces 5 and the lower limit pieces 6 are in contact with the outer surface of the ring-shaped body 3. And limit grooves matching the installation cylinders 4 and the fastening bolts 402 are provided on the upper limit pieces 5 and the lower limit pieces 6 to limit the axial movement of the fastening bolts 402 and prevent the fastening bolts 402 from loosening and rotating due to vibration external force, making its connection more firm and stable.
[0020] Upper limit members 5 are symmetrically provided with upper connecting plates 501 on both sides, and lower limit members 6 are provided with lower connecting plates 601 on both sides. The bottom end of the upper connecting plate 501 abuts against the top end of the lower connecting plate 601. A connecting arm 502 is provided at the bottom end of the upper connecting plate 501. A first clamping block 503 is provided at the bottom end of one side of the connecting arm 502. An installation groove 602 is formed at the top end of the lower connecting plate 601. A second clamping block 603 is provided at the top end of the inner wall of the installation groove 602 close to the first clamping block 503. A first driving inclined surface 504 is formed at the bottom end of the side of the first clamping block 503 close to the second clamping block 603. A second driving inclined surface 604 is formed at the top end of the side of the second clamping block 603 close to the first clamping block 503. When the upper connecting plate 501 and the lower connecting plate 601 are installed, the first driving inclined surface 504 abuts against the second driving inclined surface 604. The second clamping block 603 forms a thrust on the first clamping block 503, driving the connecting arm 502 to deflect to the other side and undergo elastic deformation until the first clamping block 503 moves to the lower part of the second clamping block 603. When the pushing force disappears, the connecting arm 502 rebounds, and the top surface of the first clamping block 503 abuts against the bottom surface of the second clamping block 603, thereby connecting the upper and lower connecting plates and fixing the lower limit member 6 and the upper limit member 5 to each other.
[0021] The above is only a preferred embodiment of the present invention, and does not impose any form of limitation on the present invention. Any simple modification or equivalent change made to the above embodiments based on the technical essence of the present invention shall fall within the protection scope of the present invention.
Claims
1. An aviation gear with good installation stability, comprising a gear body (1) and a shaft body (2). An installation hole (101) matching the shaft body (2) is provided at the center of the gear body (1). It is characterized in that: Both ends of the gear body (1) are provided with annular edge bodies (3) that are concentric with the mounting holes (101). The annular edge bodies (3) are arranged at intervals from the mounting holes (101). A plurality of mounting cylinders (4) are annularly arranged on the annular edge bodies (3). One end of the mounting cylinder (4) close to the shaft body (2) is slidably provided with a connecting rod (401). One end of the mounting cylinder (4) far from the shaft body (401) is threadedly connected with a fastening bolt (402). A compression spring (403) is arranged between the fastening bolt (402) and the connecting rod (401). A positioning groove (201) matching the connecting rod (401) is formed on the outer surface of the shaft body (2).
2. The aviation gear with good installation stability according to claim 1, characterized in that: One end of the inner wall of the mounting cylinder (4) close to the shaft body (2) is provided with a sliding groove (404). A sliding block (405) is arranged on the connecting rod (401) inside the mounting cylinder (4). One end of the compression spring (403) abuts against the fastening bolt (402), and the other end abuts against the sliding block (405).
3. The aviation gear with good installation stability according to claim 2, characterized in that: The fastening bolt (402) is threadedly connected with the inner wall of the mounting cylinder (4) to generate a pressing force on the compression spring (403). Under the action of the force of the compression spring (403), one end of the connecting rod (401) penetrates through the mounting cylinder (4) and extends into the positioning groove (201).
4. The aviation gear with good installation stability according to claim 1, characterized in that: Upper limit members (5) and lower limit members (6) with a semi-circular structure are symmetrically arranged on the outer surface of the annular edge body (3). The upper limit members (5) and the lower limit members (6) form an annular structure.
5. The aviation gear with good installation stability according to claim 4, wherein: Upper connecting plates (501) are symmetrically arranged on both sides of the upper limit member (5). Lower connecting plates (601) are arranged on both sides of the lower limit member (6). The bottom end of the upper connecting plate (501) abuts against the top end of the lower connecting plate (601).
6. The aviation gear with good installation stability according to claim 5, characterized in that: A connecting arm (502) is arranged at the bottom end of the upper connecting plate (501). A first clamping block (503) is arranged at the bottom end of one side of the connecting arm (502). An installation groove (602) is formed at the top end of the lower connecting plate (601). A second clamping block (603) is arranged at the top end of the inner wall of the installation groove (602) close to the first clamping block (503). A first driving inclined surface (504) is formed at the bottom end of the side of the first clamping block (503) close to the second clamping block (603). A second driving inclined surface (604) is formed at the top end of the side of the second clamping block (603) close to the first clamping block (503).