A multi-layered gear

Abstract

The utility model relates to gear field discloses a kind of multilayer gears, including gear B, gear A and gear C respectively located gear B upper and lower sides, positioning assembly includes locating post A, detachably setting locating post B above locating post A, gear A, gear B and gear C are respectively opened with locating hole A, locating hole B and locating hole C through and through, locating hole A, locating hole B and locating hole C diameter are matched with locating post A diameter, locating post A inserts locating hole C and locating hole B and gear C and gear B detachably connect, locating post B inserts locating hole B and locating hole A and gear B and gear A detachably connect.The utility model has high adaptability, the effect of flexible use, after the problem that the welding of limit pin is completed, welding bead can extrude other gear end face, leading to other gear end face damage;Limit pin length is fixed, limit pin can extend pin groove, leading to the problem of subsequent installation.

Description

Technical Field

[0001] This utility model relates to the field of gear technology, specifically to a multi-layer gear. Background Technology

[0002] A gear is a wheel-shaped mechanical part with continuously meshing teeth along its edges. It is hailed as the "symbol of industry" and is an indispensable basic transmission element in almost all mechanical devices. Through the meshing of the teeth of two or more gears, power and motion can be transmitted from one shaft to another.

[0003] In the prior art, a multi-layer precision gear with authorization announcement number CN 222894599 U is arranged in sequence with a pinion, a medium gear and a large gear. A limiting pin on one side of the pinion is inserted into a pin groove on the medium gear, and a limiting pin on one side of the medium gear is inserted into a pin groove on the large gear. This limits and fixes the arranged pinion, medium gear and large gear. The arranged pinion, medium gear and large gear are fixed by a long screw and a nut. The inner diameter of the shaft hole on the pinion, medium gear and large gear is the same, and the position of the threaded groove is the same. It can be used individually after arbitrary combination and disassembly.

[0004] While the above technical solution achieves the goal of arbitrarily combining gears and using individual gears after disassembly, the limiting pins are welded to the pinion and intermediate gear. After the limiting pins are welded, the weld bead protrudes from the gear end face. During subsequent installation, the weld bead will squeeze the end face of other gears, causing damage to the end face of other gears. Furthermore, the length of the limiting pin is fixed and cannot be replaced after welding. If the limiting pin is assembled with a gear whose thickness is less than the length of the limiting pin, the limiting pin will protrude from the pin groove, causing problems that affect subsequent installation. Utility Model Content

[0005] The purpose of this invention is to provide a multi-layer gear to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a multi-layer gear, comprising gear B, gear A and gear C located on the upper and lower sides of gear B respectively, a positioning component, and a locking component. The positioning component includes a positioning post A and a positioning post B detachably disposed above the positioning post A. Gear A, gear B, and gear C are respectively provided with positioning holes A, B, and C extending vertically. The positioning post A and positioning post B have the same diameter. The diameters of positioning holes A, B, and C all match the diameter of positioning post A. Positioning post A is inserted into positioning holes C and B and is detachably connected to gear C and gear B. Positioning post B is inserted into positioning holes B and A and is detachably connected to gear B and gear A.

[0007] Preferably, a magnetic disk is fixedly disposed below the positioning post A, the diameter of the magnetic disk being larger than the diameter of the positioning hole C, and the gears A, B, and C are all made of carburized steel. After the positioning post A is inserted into the positioning holes C and B, the magnetic disk is magnetically connected to the gear C.

[0008] Preferably, a stud A is fixedly disposed below the positioning post B, and a screw hole A is provided on the top wall of the positioning post A. The stud A is screwed into the screw hole A and threadedly connected to the positioning post A.

[0009] Preferably, the locking assembly includes a plurality of threaded sleeves and screws. Gear A has a plurality of stepped grooves extending vertically. The threaded sleeves are embedded in the stepped grooves and fixedly connected to gear A. Gears B and C each have a plurality of through holes extending vertically. Positioning pin A is inserted into positioning hole C and positioning hole B. Positioning pin B is inserted into positioning hole B and positioning hole A. After positioning pin B is inserted into positioning hole B and positioning hole A, the threaded sleeves are aligned with the through holes. After the screws are inserted into the through holes, they are screwed into the threaded sleeves and fixedly connected to gears A, B, and C.

[0010] Preferably, the locking assembly further includes a spring washer and a flat washer fitted on the screw, the screw is a countersunk screw, and the bottom wall of the gear C has a countersunk hole communicating with the through hole, and the screw head, the spring washer and the flat washer are all located inside the countersunk hole.

[0011] Preferably, the positioning assembly further includes a top plate located above the positioning post B, the diameter of the top plate being larger than the diameter of the positioning hole A, a stud B being fixedly disposed below the top plate, and a screw hole B being formed on the top wall of the positioning post B, the stud B being screwed into the screw hole B and threadedly connected to the positioning post B.

[0012] Preferably, the outer wall of the top plate is provided with anti-slip texture.

[0013] The beneficial effects of this utility model are as follows: During assembly, the threaded sleeve is embedded in the stepped groove and fixed to gear A. The stud A is screwed into the threaded hole A and tightened to fix positioning pin A and positioning pin B. Positioning pin A is inserted into positioning hole C, so that the magnetic disk is magnetically connected to gear C, preventing positioning pin A from sliding out of positioning hole C. Positioning pin B is inserted into positioning hole B and positioning hole A, so that gear B and gear A are stacked on top of gear C, and the threaded sleeve is aligned with the through hole. The stud B is screwed into threaded hole B and tightened to fix the top plate to positioning pin B and position it above gear A. The top plate can prevent gear A from sliding out of positioning pin B during subsequent installation. After the screw is inserted into the through hole, it is screwed into the threaded sleeve and tightened to fix gear A, gear B and gear C together, completing the assembly of this utility model. Screwing the stud B out of threaded hole B allows positioning pin A and positioning pin B to be removed. B can be used for positioning and installing other gears, providing flexibility. When disassembling gears, unscrewing the screw from the sleeve and pulling it out of the through hole allows gears A, B, and C to be separated, facilitating assembly and disassembly. In summary, this invention offers the advantages of convenient gear positioning and assembly as well as convenient gear disassembly. Furthermore, by providing a detachable positioning post, it can be flexibly matched according to gear thickness, offering high adaptability. After gear assembly, the positioning post can be removed and used elsewhere, providing flexibility. This solves the problem that after welding the limiting pin, the weld bead protrudes from the gear end face, causing damage to other gear end faces during subsequent installation. The limiting pin length is fixed and cannot be replaced after welding. If the limiting pin is assembled with a gear whose thickness is less than its length, the limiting pin will extend out of the pin groove, affecting subsequent installation. Attached Figure Description

[0014] Appendix Figure 1 This is a schematic diagram of the structure of this utility model; Appendix Figure 2 This is a schematic diagram of the bottom structure of this utility model; Appendix Figure 3 This is an exploded view of the present invention; Appendix Figure 4 This is a top view of the present invention; Appendix Figure 5 For the appendix Figure 4 Sectional view at point AA; Appendix Figure 6 For the appendix Figure 4 Sectional view at point BB.

[0015] In the diagram: 1. Gear A; 2. Gear B; 3. Gear C; 4. Locating pin A; 5. Locating pin B; 6. Locating hole A; 7. Locating hole B; 8. Locating hole C; 9. Magnet disc; 10. Stud A; 11. Screw hole A; 12. Screw sleeve; 13. Screw; 14. Stepped groove; 15. Through hole; 16. Spring washer; 17. Flat washer; 18. Countersunk hole; 19. Top plate; 20. Stud B; 21. Screw hole B. Detailed Implementation

[0016] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0017] like Figure 1-6As shown, this utility model discloses a multi-layer gear, including gear B2, gears A1 and C3 located on the upper and lower sides of gear B2 respectively, a positioning component, and a locking component. The positioning component includes a positioning post A4 and a positioning post B5 detachably disposed above the positioning post A4. Gears A1, B2, and C3 are respectively provided with positioning holes A6, B7, and C8 extending vertically. The positioning post A4 and positioning post B5 have the same diameter. The diameters of positioning holes A6, B7, and C8 are all matched with the diameter of positioning post A4. Positioning post A4 is inserted into positioning holes C8 and B7 and is detachably connected to gears C3 and B2. Positioning post B5 is inserted into positioning holes B7 and A6 and is detachably connected to gears B2 and A1. During assembly, the threaded sleeve 12 is embedded into the stepped groove 14 and fixed to gear A1. The stud A10 is screwed into the threaded hole A11 and tightened to fix the positioning pin A4 and positioning pin B5. The positioning pin A4 is inserted into the positioning hole C8 so that the magnetic disk 9 is magnetically connected to gear C3, preventing the positioning pin A4 from slipping out of the positioning hole C8. The positioning pin B5 is inserted into the positioning holes B7 and A6 so that gears B2 and A1 are stacked on top of gear C3, and the threaded sleeve 12 is connected to the through hole. Align holes 15, screw stud B20 into screw hole B21 and tighten, fixing top plate 19 to positioning post B5 and positioning it above gear A1. Top plate 19 prevents gear A1 from slipping out of positioning post B5 during subsequent installation. Insert screw 13 into through hole 15, screw in screw sleeve 12 and tighten, fixing gear A1, gear B2 and gear C3 together, completing the assembly of this utility model; unscrew stud B20 out of screw hole B21, and positioning post A4 and positioning post B5 can be connected. After removing the positioning post B5, positioning posts A4 and B5 can be used for positioning and installing other gears, providing flexibility. When disassembling gears, unscrewing screw 13 out of the threaded sleeve 12 and pulling out the through hole 15 allows gears A1, B2, and C3 to be separated, facilitating assembly and disassembly. In summary, this invention offers the advantages of convenient gear positioning and assembly as well as convenient gear disassembly. Furthermore, by providing detachable positioning posts, it allows for flexible matching based on gear thickness, offering high adaptability. After gear assembly, the positioning posts can be removed and used elsewhere, providing flexibility. This solves the problem that after welding the limiting pin, the weld bead protrudes from the gear end face, causing damage to other gear end faces during subsequent installation. The limiting pin length is fixed and cannot be replaced after welding. If the limiting pin is assembled with a gear whose thickness is less than its length, the limiting pin will extend out of the pin groove, affecting subsequent installation.

[0018] Preferably, a magnetic disk 9 is fixedly disposed below the positioning post A4. The diameter of the magnetic disk 9 is larger than the diameter of the positioning hole C8. The gears A1, B2, and C3 are all made of carburized steel. After the positioning post A4 is inserted into the positioning holes C8 and B7, the magnetic disk 9 is magnetically connected to the gear C3. Because the diameter of the magnetic disk 9 is larger than the diameter of the positioning hole C8, inserting the positioning post A4 into the positioning hole C8 causes the magnetic disk 9 to magnetically connect with the gear C3, thereby fixing the positioning post A4 inside the positioning hole C8 and preventing the positioning post A4 from sliding out of the positioning hole C8.

[0019] Preferably, a stud A10 is fixedly installed below the positioning post B5, and a screw hole A11 is opened on the top wall of the positioning post A4. The stud A10 is screwed into the screw hole A11 and threadedly connected to the positioning post A4. Since the stud A10 is screwed into the screw hole A11 and threadedly connected to the positioning post A4, it facilitates the installation and removal of the positioning post B5. When the installed gear is thick, a longer positioning post B5 can be replaced, allowing for flexible configuration.

[0020] Preferably, the locking assembly includes several threaded sleeves 12 and screws 13. Gear A1 has several stepped grooves 14 extending vertically. The threaded sleeves 12 are embedded in the stepped grooves 14 and fixedly connected to gear A1. Gears B2 and C3 each have several through holes 15 extending vertically. After the positioning pins A4 and B7 are inserted into positioning holes C8 and B7, and B5 and A6 are inserted into positioning holes B7 and A6, the threaded sleeves 12 align with the through holes 15. After the screws 13 are inserted into the through holes 15, they are screwed into the threaded sleeves 12 and fixedly connected to gears A1, B2, and C3. Because the threaded sleeves 12 align with the through holes 15 after the positioning pins A4 and B7 and B5 and B7 and A6 are inserted into the positioning holes B7 and A6, the gears are positioned and installed. Because the screws 13 are inserted into the through holes 15 and screwed into the threaded sleeves 12 and fixedly connected to gears A1, B2, and C3, the gears are easily disassembled and assembled.

[0021] Preferably, the locking assembly further includes a spring washer 16 and a flat washer 17 fitted onto the screw 13. The screw 13 is a countersunk screw 13, and the bottom wall of the gear C3 has a countersunk hole 18 communicating with the through hole 15. The screw head, spring washer 16, and flat washer 17 are all located inside the countersunk hole 18. The spring washer 16 and flat washer 17 fitted onto the screw 13 serve to prevent loosening; and the fact that the screw head, spring washer 16, and flat washer 17 are all located inside the countersunk hole 18 ensures the flatness of the gear end face.

[0022] Preferably, the positioning assembly further includes a top plate 19 located above the positioning post B5. The diameter of the top plate 19 is larger than the diameter of the positioning hole A6. A stud B20 is fixedly disposed below the top plate 19. A screw hole B21 is formed on the top wall of the positioning post B5. The stud B20 is screwed into the screw hole B21 and threadedly connected to the positioning post B5. Since the diameter of the top plate 19 is larger than the diameter of the positioning hole A6, screwing the stud B20 into the screw hole B21 and tightening it fixes the top plate 19 to the positioning post B5 and positions it above the gear A1. The top plate 19 can block the gear A1, thus preventing the gear A1 from slipping out of the positioning post B5.

[0023] Preferably, the outer wall of the top plate 19 is provided with anti-slip texture. The anti-slip texture on the outer wall of the top plate 19 serves to prevent slippage and facilitate the turning of the top plate 19.

[0024] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multi-layer gear, comprising gear B (2), gear A (1) and gear C (3) respectively located on the upper and lower sides of gear B (2), a positioning assembly, and a locking assembly, characterized in that: The positioning assembly includes a positioning post A (4) and a positioning post B (5) detachably disposed above the positioning post A (4). The gears A (1), B (2), and C (3) are respectively provided with positioning holes A (6), B (7), and C (8) extending vertically. The positioning post A (4) and the positioning post B (5) have the same diameter. The diameters of the positioning holes A (6), B (7), and C (8) are all matched with the diameter of the positioning post A (4). The positioning post A (4) is inserted into the positioning holes C (8) and B (7) and is detachably connected to the gears C (3) and B (2). The positioning post B (5) is inserted into the positioning holes B (7) and A (6) and is detachably connected to the gears B (2) and A (1).

2. A multi-layer gear according to claim 1, characterized in that: A magnet disk (9) is fixedly installed below the positioning post A (4). The diameter of the magnet disk (9) is larger than the diameter of the positioning hole C (8). The gears A (1), B (2) and C (3) are all made of carburized steel. After the positioning post A (4) is inserted into the positioning hole C (8) and the positioning hole B (7), the magnet disk (9) is magnetically connected to the gear C (3).

3. A multi-layer gear according to claim 1, characterized in that: A stud A (10) is fixedly installed below the positioning post B (5). A screw hole A (11) is opened on the top wall of the positioning post A (4). The stud A (10) is screwed into the screw hole A (11) and threadedly connected to the positioning post A (4).

4. A multi-layer gear according to claim 1, characterized in that: The locking assembly includes several threaded sleeves (12) and screws (13). The gear A (1) has several stepped grooves (14) extending vertically. The threaded sleeves (12) are embedded in the stepped grooves (14) and fixedly connected to the gear A (1). The gears B (2) and C (3) each have several through holes (15) extending vertically. The positioning pin A (4) is inserted into the positioning hole C (8) and the positioning hole B (7). The positioning pin B (5) is inserted into the positioning hole B (7) and the positioning hole A (6). After the threaded sleeves (12) are aligned with the through holes (15), the screws (13) are inserted into the through holes (15) and screwed into the threaded sleeves (12) to fix them to the gears A (1), B (2), and C (3).

5. A multi-layer gear according to claim 4, characterized in that: The locking assembly also includes a spring washer (16) and a flat washer (17) sleeved on the screw (13). The screw (13) is a countersunk screw (13). The bottom wall of the gear C (3) is provided with a countersunk hole (18) communicating with the through hole (15). The screw head, spring washer (16) and flat washer (17) are all located inside the countersunk hole (18).

6. A multi-layer gear according to claim 1, characterized in that: The positioning assembly also includes a top plate (19) located above the positioning post B (5). The diameter of the top plate (19) is larger than the diameter of the positioning hole A (6). A stud B (20) is fixedly installed below the top plate (19). A screw hole B (21) is opened on the top wall of the positioning post B (5). The stud B (20) is screwed into the screw hole B (21) and threadedly connected to the positioning post B (5).

7. A multi-layer gear according to claim 6, characterized in that: The outer wall of the top plate (19) is provided with anti-slip texture.

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