Aviation transmission gear assembly

Abstract

The utility model relates to the technical field of gears, in particular to an aviation transmission gear assembly which comprises an outer gear ring, an inner ring body and a connecting ring body, limiting blocks of a swallow-tail-shaped structure are arranged on the outer surface of the inner ring body in an equally-divided circumference mode, limiting grooves matched with the limiting blocks are formed in the inner wall of the outer gear ring, and an annular sliding rail is annularly arranged on the inner wall of the inner ring body. The annular sliding rail and the limiting block are located on the same central axis, a rotary knob is rotationally arranged on the annular sliding rail, a connecting screw rod is arranged in the annular sliding rail, a first positioning hole is annularly formed in the outer gear ring, a second positioning hole is annularly formed in the inner ring body, and the connecting ring body is composed of a left body and a right body. The left body is provided with a positioning column, the right body is provided with a fixing bolt, the joint of the left body and the right body is provided with a receding hole for receding the knob, and the inner wall of the receding hole abuts against the knob, the maintenance cost is low, the connection strength among the outer gear ring, the inner ring body and the connecting ring body is high, the integrity is better, and the service life of the outer gear ring, the inner ring body and the connecting ring body is prolonged. The use is more stable.

Description

Technical Field

[0001] The utility model belongs to the technical field of gears, in particular to an aviation transmission gear assembly. Background Art

[0002] Gear is a transmission part and the most widely used transmission form in mechanical transmission. Its transmission is relatively accurate, efficient, compact and reliable. Existing gears are mostly one-piece structures. The teeth of the gears wear and break after long-term use, and can only be replaced as a whole, which has high maintenance costs. Chinese patent document "20232005829.5" discloses a transmission gear that fixes the ear block and the second limit hole to be misaligned, so that the fixing is connected to the first limit hole, so that the inner connecting shaft body and the outer gear body are fixedly connected. After the teeth of the gear are damaged, the outer gear body can be replaced separately to reduce maintenance costs, but the connection strength and integrity between the inner connecting shaft body and the outer gear body need to be improved. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide an aviation transmission gear assembly in view of the above-mentioned defects, which has low maintenance cost, high connection strength between the outer gear ring, the inner ring body and the connecting ring body, better integrity and more stable use.

[0004] The technical solution adopted by the utility model to solve its technical problems is as follows: an aviation transmission gear assembly, including an outer gear ring, an inner ring body and a connecting ring body, the outer surface of the inner ring body is equally divided into a circle and provided with a plurality of limit blocks of a dovetail structure, the inner wall of the outer gear ring is provided with a limit groove matching the limit block, a plurality of annular slide rails are annularly arranged on the inner wall of the inner ring body, the annular slide rails and the limit block are on the same central axis, a knob is rotatably arranged on the annular slide rail, a connecting screw is arranged inside the annular slide rail, one end of the screw passes through the inner ring body, the limit block and the thread of the outer gear ring The outer gear ring is provided with a first positioning hole, and the inner ring body is provided with a second positioning hole. The connecting ring body is composed of a left body and a right body. The left body is provided with a positioning column matching the first positioning hole and the second positioning hole, and the right body is provided with a fixed bolt. The positioning column of the left body passes through the first positioning hole, the second positioning hole and is connected with the fixing bolt. The connection between the left body and the right body is provided with an avoidance hole for avoiding the knob, and the inner wall of the avoidance hole conflicts with the knob.

[0005] Furthermore, a central mounting hole is opened at the center of the connecting ring body.

[0006] Furthermore, the first positioning hole and the second positioning hole are located on the same straight line.

[0007] Furthermore, the left body is composed of a ring body, a first vertical section, a horizontal section, and a second vertical section. The right body is symmetrical in structure with the left body. The first vertical section is arranged on the outer periphery of the ring body, the horizontal section is arranged at the end of the first vertical section away from the ring body, and the second vertical section is arranged at the end of the horizontal section away from the first vertical section. The ring bodies and the first vertical sections of the left and right bodies cooperate to form the avoidance hole. The outer surface of the ring body conflicts with the end of the knob away from the annular slide rail, the side wall of the first vertical section conflicts with the side wall of the knob, the outer surface of the horizontal section conflicts with the inner wall of the inner ring body, and the second vertical section conflicts with the inner ring body and the side wall of the outer gear ring.

[0008] Furthermore, a connecting bolt is annularly arranged on the ring body of the left main body, and a connecting nut is arranged on the ring body of the right main body. The connecting bolt passes through the left main body and the right main body and is threadedly connected to the connecting nut.

[0009] The beneficial effects of the utility model are:

[0010] The utility model is provided with the matching arrangement of the outer gear ring, the inner ring body, the connecting ring body, the limiting block, the limiting groove, the annular slide rail, the knob, the connecting screw, the first positioning hole, the second positioning hole, the positioning column, the fixing bolt and the avoidance hole. The limiting block and the limiting groove are both dovetail structures, so that the outer gear ring and the inner ring body form an effective limit in the radial direction, and the integrity between the outer gear ring and the inner ring body is improved. The dovetail structure can effectively prevent the separation phenomenon caused by thermal barrier and cold shrinkage, and make the matching more stable. By turning the knob, the connecting screw is driven to be threadedly connected with the limiting block and the outer gear ring, so that the outer gear ring A lock is formed between the ring and the inner ring body, and the connecting ring body cooperates with the first positioning hole, the second positioning hole, and the fixing bolt through the positioning column to limit the axial movement of the outer gear ring and the inner ring body, further improving the integrity of the outer gear ring, the inner ring body, and the connecting ring body. While forming a split structure for the outer gear ring, the inner ring body, and the connecting ring body, the integrity is better, and the connection between them is more firm and stable. The avoidance hole restricts the knob and the connecting screw, so that the connecting screw cannot be moved out of the outer gear ring and the limit block, making the connection more firm and stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The foregoing and other objects, features and advantages of the present invention will become apparent from the following detailed description in conjunction with the accompanying drawings.

[0012] Figure 1 It is a front cross-sectional view of the utility model.

[0013] Figure 2 It is a front view of the utility model.

[0014] Figure 3 It is a side sectional view of the utility model.

[0015] Among them: 1. outer gear ring; 101. limit groove; 102. first positioning hole; 2. inner ring body; 201. limit block; 202. annular slide rail; 203. knob; 204. connecting screw; 205. second positioning hole; 3. connecting ring body; 301. left body; 302. right body; 3011. ring body; 3012. first vertical section; 3013. horizontal section; 3014. second vertical section; 4. avoidance hole; 5. connecting bolt; 6. connecting nut. DETAILED DESCRIPTION

[0016] The utility model is further described below in conjunction with the accompanying drawings.

[0017] Reference Figure 1-3 As shown, the aviation transmission gear assembly includes an outer gear ring 1, an inner ring body 2 and a connecting ring body 3, forming a split structure. After the teeth of the outer gear ring 1 are broken or damaged, the outer gear ring 1 can be replaced without replacing the entire ring body, which effectively reduces the maintenance cost. The outer surface of the inner ring body 2 is evenly divided into a circle and provided with a plurality of dovetail-shaped limit blocks 201. The inner wall of the outer gear ring 1 is provided with a limit groove 101 matching the limit block 201. Through the cooperation of the limit block 201 and the limit groove 101, the radial direction of the outer gear ring 1 and the inner ring body 2 is limited, so that the integrity during rotation is better, and the dovetail-shaped structure can effectively prevent the phenomenon of breaking apart caused by thermal barriers and shrinkage, so that the cooperation is more stable. A plurality of annular slide rails 202 are annularly provided on the inner wall of the inner ring body 2 The annular slide rail 202 and the limit block 201 are on the same central axis, and a knob 203 is rotatably arranged on the annular slide rail 202. The knob 203 is provided with an annular slide groove matching the annular slide rail 202, and the knob 203 is stably arranged on the annular slide rail 202 to form rotation. A connecting screw 204 is arranged inside the annular slide rail 202, and one end of the screw 204 passes through the inner ring body 2, the limit block 201 and is threadedly connected with the outer gear ring 1, and the other end passes through the annular slide rail 202 and is threadedly connected with the knob 203. By rotating the knob 203, the connecting screw 204 is driven to be threadedly connected or separated from the limit block and the outer gear ring, thereby increasing the connection strength and connection stability between the inner ring body 2 and the outer gear ring 1, and facilitating the later disassembly and replacement of the outer gear ring 1.

[0018] A first positioning hole 102 is annularly provided on the outer gear ring 1, and a second positioning hole 205 is annularly provided on the inner ring body 2. The connecting ring body 3 is composed of a left main body 301 and a right main body 302. A positioning column 303 matching the first positioning hole 102 and the second positioning hole 205 is provided on the left main body 301. The first positioning hole 102 and the second positioning hole 205 are on the same straight line. A fixing bolt 304 is provided on the right main body 302. The positioning column 303 of the left main body 301 passes through the first positioning hole 102 and the second positioning hole 205 and is connected with the fixing bolt 304. The connecting ring body 3 cooperates with the first positioning hole 102, the second positioning hole 205 and the fixing bolt 304 through the positioning column 303 to limit the axial movement of the outer gear ring and the inner ring body, further improve the integrity of the outer gear ring, the inner ring body and the connecting ring body, and make the connection strength between the outer gear ring 1, the inner ring body 2 and the connecting ring body 3 higher and more stable.

[0019] A avoidance hole 4 is provided at the connection between the left body 301 and the right body 302 to avoid the knob 203. The inner wall of the avoidance hole 4 contacts the knob 203. The avoidance hole 4 restricts the knob 203 and the connecting screw 204 to limit the movement of the connecting screw 204 out of the knob 203, so that the connecting screw 204 cannot be moved out of the outer gear ring 1 and the limit block 201, making the connection more firm and stable.

[0020] A central mounting hole 305 is formed at the center of the connecting ring body 3, and the central mounting hole 305 is matched with the shaft body.

[0021] The left body 301 is composed of a ring body 3011, a first vertical section 3012, a horizontal section 3013, and a second vertical section 3014. The right body 302 is symmetrical with the left body 301. The first vertical section 3012 is arranged on the outer periphery of the ring body 3011, the horizontal section 3013 is arranged at one end of the first vertical section 3012 away from the ring body 3011, and the second vertical section 3014 is arranged at one end of the horizontal section 3013 away from the first vertical section 3012. The ring bodies 3011 and the first vertical section 3012 of the left body 301 and the right body 302 cooperate to form the avoidance hole 4. The outer surface of the ring body 3011 It conflicts with the end of the knob 203 away from the annular slide rail 202, the side wall of the first vertical section 3012 conflicts with the side wall of the knob 203, the outer surface of the horizontal section 3013 conflicts with the inner wall of the inner ring body 2, the second vertical section 3014 conflicts with the side walls of the inner ring body 2 and the outer gear ring 1, the ring bodies 3011 of the left body 301 and the right body 302 conflict with each other, the first vertical section 3012, the horizontal section 3013, the second vertical section 3014, and the ring body 3011 conflict with the inner ring body 2 and the outer gear ring 1 while forming support for the inner ring body 2, so that the integrity of the outer gear ring 1, the inner ring body 2, and the connecting ring body 3 is better.

[0022] A connecting bolt 5 is annularly arranged on the ring body 3011 of the left main body 301, and a connecting nut 6 is arranged on the ring body 3011 of the right main body 302. The connecting bolt 5 passes through the left main body 301 and the right main body 302 and is threadedly connected with the connecting nut 6. Through the cooperation of the connecting bolt 5 and the connecting nut 6, the connection between the left main body 301 and the right main body 302 is made more secure, and the second vertical section 3014 forms a clamping force on the outer gear ring 1 and the inner ring body 2 to limit the axial movement of the outer gear ring 1 and the inner ring body 2, making the connection more secure.

[0023] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any simple modification or equivalent changes 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. Aviation transmission gear assembly, Features: The invention comprises an outer gear ring (1), an inner ring body (2) and a connecting ring body (3); the outer surface of the inner ring body (2) is provided with a plurality of dovetail-shaped limit blocks (201) which are equally divided into a circle; the inner wall of the outer gear ring (1) is provided with a limit groove (101) which matches the limit block (201); the inner wall of the inner ring body (2) is provided with a plurality of annular slide rails (202) in an annular shape; the annular slide rails (202) and the limit block (201) are located on the same central axis; a knob (203) is rotatably provided on the annular slide rail (202); a connecting screw rod (204) is provided inside the annular slide rail (202); one end of the screw rod (204) passes through the inner ring body (2), the limit block (201) and is threadedly connected to the outer gear ring (1); the other end passes through the annular slide rail (202) and is threadedly connected to the knob (203); The ring (1) is provided with a first positioning hole (102) in an annular shape, the inner ring body (2) is provided with a second positioning hole (205) in an annular shape, the connecting ring body (3) is composed of a left body (301) and a right body (302), the left body (301) is provided with a positioning column (303) matching the first positioning hole (102) and the second positioning hole (205), the right body (302) is provided with a fixing bolt (304), the positioning column (303) of the left body (301) passes through the first positioning hole (102) and the second positioning hole (205) and is connected to the fixing bolt (304), and a avoidance hole (4) for avoiding the knob (203) is provided at the connection between the left body (301) and the right body (302), and the inner wall of the avoidance hole (4) is in conflict with the knob (203).

2. The aviation transmission gear assembly according to claim 1, Features: A central mounting hole (305) is provided at the center of the connecting ring body (3).

3. The aviation transmission gear assembly according to claim 1, Features: The first positioning hole (102) and the second positioning hole (205) are located on the same straight line.

4. The aviation transmission gear assembly according to claim 1, Features: The left body (301) is composed of a ring body (3011), a first vertical section (3012), a horizontal section (3013), and a second vertical section (3014); the right body (302) is symmetrical in structure to the left body (301); the first vertical section (3012) is arranged on the outer periphery of the ring body (3011); the horizontal section (3013) is arranged at one end of the first vertical section (3012) away from the ring body (3011); and the second vertical section (3014) is arranged at the end of the horizontal section (3013) away from the first vertical section (3012). At one end of the left body (301), the ring body (3011) and the first vertical section (3012) of the right body (302) cooperate to form the avoidance hole (4), the outer surface of the ring body (3011) abuts against the end of the knob (203) away from the annular slide rail (202), the side wall of the first vertical section (3012) abuts against the side wall of the knob (203), the outer surface of the horizontal section (3013) abuts against the inner wall of the inner ring body (2), and the second vertical section (3014) abuts against the side wall of the inner ring body (2) and the outer gear ring (1).

5. The aviation transmission gear assembly according to claim 4, Features: A connecting bolt (5) is annularly arranged on the ring body (3011) of the left body (301), and a connecting nut (6) is arranged on the ring body (3011) of the right body (302). The connecting bolt (5) passes through the left body (301) and the right body (302) and is threadedly connected to the connecting nut (6).

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