A multi-layer precision gear

Abstract

This utility model discloses a multi-layer precision gear, relating to the field of gear technology. It includes a gear body, connecting holes, connecting components, positioning components, I-beam grooves, a second nut, and a screw. The connecting hole is located in the middle of the gear body. Multiple connecting components are positioned opposite each other at the top and bottom of the gear body. The positioning components are positioned between two opposing gear bodies. Multiple I-beam grooves are respectively located on the two sides where the gear bodies fit together. The second nut is engaged between two opposing I-beam grooves. The screw is threadedly inserted into the middle of the multiple I-beam grooves. This utility model, through the coordinated arrangement of the connecting components, positioning components, I-beam grooves, second nut, and screw, reduces transmission errors, further suppresses relative slippage between gears, and improves transmission stability. The screw and second nut penetrate the multi-layer gear body, enhancing overall rigidity, preventing loosening during high-speed operation, and reducing noise and wear caused by unstable transmission.

Description

Technical Field

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

[0002] In mechanical transmission systems, gears are key components for transmitting power and motion. Traditional single-layer gear structures often require multiple independent gears to work together in specific applications, resulting in complex structures, high assembly precision requirements, and susceptibility to transmission efficiency issues due to installation errors.

[0003] Furthermore, traditional multi-layer gears are typically manufactured using welding, riveting, or integral casting methods. For example, a multi-layer precision gear disclosed in application number 202421766262.4 includes a multi-layer precision gear composed of a pinion, a medium gear, and a large gear arranged sequentially. Limiting pins are welded to both ends of the pinion and medium gear near the large gear, and pin grooves are drilled through both ends of the medium and large gears. A fixing component is provided on the outer side of the multi-layer precision gear, including a long screw with a nut fitted on its outer side. The aforementioned multi-layer precision gear, composed of a pinion, medium gear, and large gear arranged and fixed in sequence, has the same inner diameter of the shaft holes and the same position of the threaded grooves on all three gears, allowing for arbitrary combination, disassembly, and individual use.

[0004] However, the aforementioned gears are fixed in a single way, using only nuts. This makes the gears prone to loosening during high-speed operation, affecting the reliability of the transmission connection between the gears. It can easily lead to instability in the transmission of multiple gears stacked together. Furthermore, fixing with a single nut can easily cause increased noise due to uneven transmission, and even accelerated gear wear. Utility Model Content

[0005] The purpose of this invention is to provide a multi-layer precision 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 precision gear, comprising:

[0007] Gear bodies, wherein multiple gear bodies are arranged in a multi-layered structure and fitted together;

[0008] A connecting hole is provided in the middle of the gear body;

[0009] A plurality of connecting components are disposed opposite to each other at the top and bottom of the gear body;

[0010] A positioning component, wherein the positioning component is disposed between two opposing gear bodies and is installed between two opposing connecting components;

[0011] I-beam grooves, with multiple I-beam grooves respectively formed on the two sides where multiple gear bodies fit together;

[0012] The second nut is engaged between two opposing I-shaped slots;

[0013] A screw rod is threadedly inserted into the middle of multiple I-shaped grooves, and the screw rod is used for the fitting and fixing of multiple gear bodies.

[0014] Preferably, the end of the screw is threaded with a third nut, and the screw is threadedly interlocked with the middle of a plurality of second nuts on the same axis.

[0015] Preferably, the connection component includes:

[0016] Positioning grooves, a plurality of the positioning grooves being formed on one surface of the gear body;

[0017] A connecting groove, wherein the connecting groove is formed in the middle of the positioning groove;

[0018] A fixing groove is formed at one end of a connecting groove, and a positioning groove is disposed opposite to the fixing groove.

[0019] A slot is formed on the other surface of the gear body.

[0020] Preferably, the card slot is formed on one side of the fixing slot, and the positioning slot is arranged opposite to the adjacent card slot.

[0021] Preferably, the positioning component includes:

[0022] A spring sheet, one end of which is disposed in the inner cavity of the positioning groove;

[0023] A fixing rod, which is inserted and connected to the middle of the spring piece;

[0024] The first nut is threaded to one end of the fixing rod and is located in the inner cavity of the fixing groove.

[0025] Preferably, the spring piece is movably engaged with the inner wall of the slot, and the fixing rod is inserted and connected to the middle of the connecting groove.

[0026] The technical effects and advantages of this utility model are as follows:

[0027] This invention employs a combination of a connecting component, a positioning component, an I-beam groove, a second nut, and a screw. The positioning component, through the engagement of a spring plate and a slot, ensures precise alignment of adjacent gear bodies, improves coaxiality, and reduces transmission errors. The V-shaped structure of the spring plate provides elastic preload, further suppressing relative slippage between gears and improving transmission stability. The screw and the second nut penetrate multiple layers of gear bodies and are locked by a third nut, enhancing overall rigidity and preventing loosening during high-speed operation. The I-beam groove, in conjunction with the second nut, restricts the radial displacement of adjacent gear bodies, preventing gear misalignment due to vibration or load changes, and reducing noise and wear caused by unstable transmission. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0029] Figure 2 This is a schematic diagram of the overall side cross-sectional structure of this utility model.

[0030] Figure 3 This is a schematic diagram of the overall top sectional view of the present invention.

[0031] Figure 4 This utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0032] In the diagram: 100, gear body; 200, connecting hole; 300, connecting assembly; 301, positioning groove; 302, connecting groove; 303, fixing groove; 304, slot; 400, positioning assembly; 401, spring; 402, fixing rod; 403, first nut; 500, I-beam groove; 600, second nut; 700, screw; 800, third nut. Detailed Implementation

[0033] 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.

[0034] This utility model provides, for example Figure 1-4The multi-layer precision gear shown includes a gear body 100, a connecting hole 200, a connecting assembly 300, a positioning assembly 400, an I-beam groove 500, a second nut 600, and a screw 700. Multiple gear bodies 100 are arranged in a multi-layer structure and are of different sizes, arranged sequentially from largest to smallest. The connecting hole 200 is located in the middle of the gear body 100, and the connecting holes 200 on gear bodies 100 of different sizes are identical. Multiple connecting assemblies 300 are respectively located at the top and bottom of the gear body 100. The positioning assembly 400 is disposed between two opposing gear bodies 100 and is installed between two opposing connecting assemblies 300. The positioning assembly 400 is used to limit the engagement between adjacent gear bodies 100. Multiple I-beam grooves 500 are respectively formed on the two sides where multiple gear bodies 100 fit together. A second nut 600 is snapped between two opposite I-beam grooves 500. A screw 700 is threadedly inserted into the middle of the multiple I-beam grooves 500. The screw 700 is used to fit and fix the multiple gear bodies 100 together. A third nut 800 is threadedly connected to the end of the screw 700. The screw 700 is threadedly inserted into the middle of multiple coaxial second nuts 600. The threaded connection between the screw 700 and the second nuts 600 and the third nuts 800 improves the connection stability between the multiple gear bodies 100. Furthermore, the placement of the second nuts 600 between two opposite I-beam grooves 500 reduces the offset between two fitting gear bodies 100, further improving the firmness between two adjacent gear bodies 100.

[0035] The connecting component 300 includes a positioning groove 301, a connecting groove 302, a fixing groove 303, and a retaining groove 304. Multiple positioning grooves 301 are formed on one surface of the gear body 100. The connecting groove 302 is formed in the middle of the positioning groove 301. The fixing groove 303 is formed at one end of the connecting groove 302. The positioning groove 301 and the fixing groove 303 are arranged opposite to each other. The retaining groove 304 is formed on the other surface of the gear body 100. The retaining groove 304 is formed on one side of the fixing groove 303. The positioning groove 301 and the adjacent retaining groove 304 are arranged opposite to each other. The arrangement of the positioning groove 301 and the retaining groove 304 facilitates the stable placement of the positioning component 400.

[0036] In addition, the positioning component 400 includes a spring piece 401, a fixing rod 402, and a first nut 403. One end of the spring piece 401 is disposed in the inner cavity of the positioning groove 301. The spring piece 401 has a V-shaped structure and is movably engaged with the inner wall of the slot 304. The fixing rod 402 is inserted and connected to the middle of the spring piece 401 and is also inserted and connected to the middle of the connecting groove 302. The first nut 403 is threadedly connected to one end of the fixing rod 402. The first nut 403 is disposed in the inner cavity of the fixing groove 303. Through the threaded connection between the fixing rod 402 and the first nut 403, the spring piece 401 can be stably placed in the inner cavity of the positioning groove 301, so that the spring piece 401 can be engaged between the corresponding slot 304 and the positioning groove 301, which further improves the positional stability between the two adjacent gear bodies 100.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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 precision gear, characterized in that, include: Gear body (100), multiple gear bodies (100) are arranged in a multi-layer structure; A connecting hole (200) is provided in the middle of the gear body (100); Connection components (300), a plurality of connection components (300) are disposed opposite to each other on the top and bottom of the gear body (100); A positioning component (400) is disposed between two opposing gear bodies (100) and mounted between two opposing connecting components (300); I-beam grooves (500), and multiple I-beam grooves (500) are respectively opened on the two sides of multiple gear bodies (100) that are in contact with each other; The second nut (600) is engaged between two opposing I-shaped slots (500); A screw (700) is threadedly inserted into the middle of a plurality of I-shaped grooves (500), and the screw (700) is used for the fitting and fixing of a plurality of gear bodies (100).

2. The multi-layer precision gear according to claim 1, characterized in that, The end of the screw (700) is threadedly connected to a third nut (800), and the screw (700) is threadedly interlocked with the middle of a plurality of second nuts (600) on the same axis.

3. A multi-layer precision gear according to claim 1, characterized in that, The connection component (300) includes: Positioning grooves (301), a plurality of said positioning grooves (301) are formed on one surface of the gear body (100); A connecting groove (302) is formed in the middle of the positioning groove (301); A fixing groove (303) is provided at one end of a connecting groove (302), and a positioning groove (301) is provided opposite to the fixing groove (303); A slot (304) is formed on another surface of the gear body (100).

4. A multi-layer precision gear according to claim 3, characterized in that, The card slot (304) is opened on one side of the fixing slot (303), and the positioning slot (301) is arranged opposite to the adjacent card slot (304).

5. A multi-layer precision gear according to claim 3, characterized in that, The positioning component (400) includes: A spring piece (401), one end of which is disposed in the inner cavity of the positioning groove (301); A fixing rod (402) is inserted and connected to the middle of a spring piece (401); The first nut (403) is threaded to one end of the fixing rod (402) and is disposed in the inner cavity of the fixing groove (303).

6. A multi-layer precision gear according to claim 5, characterized in that, The spring piece (401) is movably engaged with the inner wall of the slot (304), and the fixing rod (402) is inserted and connected to the middle of the connecting groove (302).

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