Detachable plastic gear

Abstract

The utility model discloses a detachable plastic gear, which relates to the technical field of plastic gears and comprises a gear body, the inner wall of the gear body is provided with a first key slot, and the inner side of the gear body is provided with a first adjusting component used for enabling the gear body to adapt to different shaft diameters. And a second adjusting assembly used for enabling the gear body to adapt to different shaft diameters is arranged on the inner side of the first adjusting assembly, if the gear needs to adapt to a connecting shaft with a smaller shaft diameter, the first adjusting assembly can be installed on the inner side of the gear body, and at the moment, the first adjusting assembly can be connected with the connecting shaft with the smaller shaft diameter through the second key groove; in addition, the second adjusting assembly can be installed on the inner side of the first T-shaped connecting piece and is in spline connection with a connecting shaft with a smaller shaft diameter through a third key groove, so that the plastic gear can be connected with three connecting shafts with different shaft diameters, the plastic gear has high applicability, and the problem that an existing plastic gear is low in applicability is solved.

Description

Technical Field

[0001] This utility model relates to the field of plastic gear technology, and in particular to a detachable plastic gear. Background Technology

[0002] In modern mechanical transmission systems, gears, as key components, play a crucial role in transmitting motion and power. Compared to metal gears, plastic gears have numerous advantages, including light weight, low operating noise, good wear resistance, excellent self-lubrication, corrosion resistance, low manufacturing cost, ease of molding, and flexible design, leading to their widespread application in many fields. From common toys and electronic appliances to medical devices with extremely high precision and stability requirements, and even high-end fields such as aerospace and national defense, plastic gears can be found everywhere.

[0003] Currently, most existing plastic gears achieve their effect using the following technologies;

[0004] Material selection technology: High-strength, wear-resistant, and self-lubricating engineering plastics, such as polyoxymethylene (POM) and nylon (PA), are selected to improve the strength, wear resistance, and transmission efficiency of gears.

[0005] Injection molding technology: Through precise mold design and injection molding process, high-precision plastic gears with complex shapes can be manufactured, ensuring the dimensional accuracy and surface quality of the gears.

[0006] Gear design optimization technology: Using computer-aided design (CAD) and computer-aided engineering (CAE) technologies, the gear tooth profile, module, pressure angle and other parameters are optimized to improve the gear's transmission performance and load-bearing capacity.

[0007] Surface treatment technology: Treating the surface of plastic gears, such as applying wear-resistant coatings or chemical plating, can further improve the wear resistance, corrosion resistance and lubricity of the gears.

[0008] Assembly technology: By adopting reasonable assembly processes and positioning methods, we can ensure the assembly accuracy of gears with shafts, bearings and other components, reduce assembly errors and improve the stability of the transmission system.

[0009] Currently, existing plastic gears have been found to have at least the following technical problems in actual use;

[0010] Most existing plastic gears have fixed inner connecting holes, which can only be connected to a connecting shaft of one size, resulting in limited applicability. Utility Model Content

[0011] To address the shortcomings of existing technologies, this invention provides a detachable plastic gear, solving the problem of limited applicability of existing plastic gears.

[0012] To achieve the above objectives, this utility model provides the following technical solution:

[0013] A detachable plastic gear includes a gear body with a first keyway on its inner wall. The gear body has a first adjustment component on its inner side for adapting to different shaft diameters, and a second adjustment component on its inner side for adapting to different shaft diameters. The first adjustment component includes a first T-shaped connector and a first limiting ring. The first T-shaped connector is fixedly connected to four first plugs. The inner wall of the first T-shaped connector has a second keyway. The first limiting ring has four first half-grooves on its side away from the first T-shaped connector, each of which passes through the first limiting ring and is fitted inside its respective half-groove. The second adjustment mechanism includes a second T-shaped connector and a second limiting ring. The second T-shaped connector is fixedly connected to six second plugs. The inner wall of the second T-shaped connector has a third keyway. The second limiting ring has six second half-grooves on its side away from the second T-shaped connector, each of which has an end passing through the second limiting ring and fitted inside its respective half-groove.

[0014] Preferably, the surface of the gear body has four first insertion holes, and the four first plugs are respectively inserted into the four first insertion holes.

[0015] Preferably, one end of each of the four first plugs located inside the first half-groove is threaded with a first nut, the four first nuts are located inside the four first half-grooves respectively, and the inside of each of the four first half-grooves is filled with thread-locking agent.

[0016] Preferably, the surface of the first T-shaped connector has six second insertion holes, and the six second plugs are respectively fitted into the six second insertion holes.

[0017] Preferably, one end of each of the six second plugs located in the second half-groove is threaded with a second nut, and the six second nuts are respectively located in the six second half-grooves.

[0018] Preferably, all six second half-grooves are filled with thread-locking agent.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] I. This application allows for direct spline connection between the gear body and the connecting shaft via the first keyway, enabling installation of the gear body and the connecting shaft. To accommodate a connecting shaft with a smaller diameter, the first adjustment component is installed inside the gear body, allowing connection via the second keyway. Alternatively, the second adjustment component can be installed inside the first T-shaped connector, connecting via the third keyway to the connecting shaft with a smaller diameter. This allows the application to connect with three different shaft diameters, enhancing its applicability. The diameters and groove diameters of the gear body, the first T-shaped connector, and the second T-shaped connector can be customized before shipment to accommodate different shafts on the same machine.

[0021] Second, by filling the first half-groove and the second half-groove with thread-locking agent, the rotation of the first nut and the second nut is restricted, so that the first T-shaped connector and the second T-shaped connector of this application have high stability and will not easily disengage from the gear body, thus giving this application high stability. Attached Figure Description

[0022] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0023] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0024] Figure 2 This is a structural diagram of the second adjusting component of this utility model in its exploded state.

[0025] Figure 3 This is a structural diagram of the first adjusting component of this utility model in its exploded state.

[0026] Figure 4 This is a half-sectional view of the present invention.

[0027] Legend: 1. Gear body; 2. First T-shaped connector; 3. First limiting ring; 4. Second T-shaped connector; 5. Second limiting ring; 101. First keyway; 102. First insertion hole; 201. First plug; 202. Second insertion hole; 203. Second keyway; 204. First nut; 301. First half-groove; 401. Second plug; 402. Third keyway; 403. Second nut. Detailed Implementation

[0028] This application provides a detachable plastic gear, which effectively solves the problem of low applicability of existing plastic gears.

[0029] Example

[0030] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the technical solution in this application embodiment effectively solves the technical problem of low applicability of existing plastic gears. The overall idea is as follows:

[0031] To address the problems existing in the prior art, this utility model provides a detachable plastic gear, including a gear body 1. The inner wall of the gear body 1 has a first keyway 101. The gear body 1 is characterized by having a first adjusting component on its inner side for adapting to different shaft diameters, and a second adjusting component on its inner side for adapting to different shaft diameters. The first adjusting component includes a first T-shaped connector 2 and a first limiting ring 3. The first T-shaped connector 2 is fixedly connected to four first plugs 201. The inner wall of the first T-shaped connector 2 has a second keyway 203, and the first limiting ring 3... Four first half-grooves 301 are provided on the side away from the first T-shaped connector 2. The four first half-grooves 301 pass through the first limiting ring 3 and are respectively sleeved inside the four first half-grooves 301. The second adjustment mechanism includes a second T-shaped connector 4 and a second limiting ring 5. The second T-shaped connector 4 is fixedly connected with six second plugs 401. A third keyway 402 is provided on the inner wall of the second T-shaped connector 4. The second limiting ring 5 is provided with six second half-grooves on the side away from the second T-shaped connector 4. The end of the six second plugs 401 away from the second T-shaped connector 4 passes through the second limiting ring 5 and is respectively sleeved inside the six second half-grooves.

[0032] The surface of the gear body 1 is provided with four first insertion holes 102, and four first insertion bolts 201 are respectively inserted into the four first insertion holes 102.

[0033] Each of the four first plugs 201 has a first nut 204 threadedly connected to one end of the first half-groove 301. The four first nuts 204 are located inside the four first half-groove 301 respectively, and the inside of the four first half-groove 301 is filled with thread-locking agent.

[0034] The surface of the first T-shaped connector 2 has six second insertion holes 202, and the six second plugs 401 are respectively fitted into the six second insertion holes 202.

[0035] Each of the six second plugs 401 has a second nut 403 threadedly connected to one end of each of the six second half-grooves. The six second nuts 403 are located in the six second half-grooves respectively.

[0036] All six second half-grooves are filled with thread-locking agent.

[0037] Gear body 1: It is the core component. It can be directly splined to the connecting shaft through the first keyway 101 to realize the installation with the connecting shaft. The first insertion hole 102 on its surface is used to insert into the first plug 201 of the first T-shaped connector 2.

[0038] First T-shaped connector 2: Installed inside the gear body 1, used to adapt the gear body 1 to a connecting shaft with a smaller shaft diameter. Its first plug 201 is fixedly connected to the first insertion hole 102 of the gear body 1. The second insertion hole 202 on the surface is used to be inserted into the second plug 401 of the second T-shaped connector 4. The second keyway 203 on the inner wall can be connected to a connecting shaft with a smaller shaft diameter.

[0039] First limiting ring 3: It cooperates with the first T-shaped connector 2, and its first half groove 301 is sleeved with the first plug 201. The first nut 204 and the first plug 201 are fixed by filling with thread locking agent, which plays a limiting and fixing role.

[0040] The second T-shaped connector 4 is installed inside the first T-shaped connector 2, further enabling the gear body 1 to be adapted to a connecting shaft with a smaller shaft diameter. Its fixedly connected second plug 401 is inserted into the second insertion hole 202 of the first T-shaped connector 2, and the third keyway 402 on the inner wall can be splined to the connecting shaft with a smaller shaft diameter.

[0041] The second limiting ring 5 cooperates with the second T-shaped connector 4. Its second half-groove is fitted with the second plug 401, and the second nut 403 and the second plug 401 are fixed by filling with thread-locking agent, which plays a role in limiting and fixing.

[0042] First keyway 101: Located on the inner wall of gear body 1, it is used to directly connect with the connecting shaft via splines, realizing the initial installation of gear body 1 and connecting shaft.

[0043] First insertion hole 102: Located on the surface of gear body 1, used to insert into the first plug 201 of the first T-shaped connector 2 to realize the connection between the first T-shaped connector 2 and gear body 1.

[0044] First plug 201: Fixedly connected to the first T-shaped connector 2, inserted into the first insertion hole 102 of the gear body 1, and sleeved with the first half groove 301 of the first limiting ring 3, and fixed by the first nut 204 and thread locking agent, so as to achieve a stable connection between the first T-shaped connector 2 and the gear body 1.

[0045] The second insertion hole 202 is located on the surface of the first T-shaped connector 2 and is used to engage with the second plug 401 of the second T-shaped connector 4 to realize the connection between the second T-shaped connector 4 and the first T-shaped connector 2.

[0046] Second keyway 203: Located on the inner wall of the first T-shaped connector 2. When the first T-shaped connector 2 is installed inside the gear body 1, it can be connected to a connecting shaft with a smaller shaft diameter through this keyway.

[0047] First nut 204: threaded connection to one end of the first plug 201 located inside the first half groove 301, and in conjunction with thread locking agent, to fix the first T-shaped connector 2 and the gear body 1.

[0048] The first half-groove 301 is located on the side of the first limiting ring 3 away from the first T-shaped connector 2, and is fitted with the first plug 201. After being filled with thread-locking agent, the first nut 204 and the first plug 201 are fixed together.

[0049] The second plug 401 is fixedly connected to the second T-shaped connector 4, inserted into the second insertion hole 202 of the first T-shaped connector 2, and sleeved with the second half groove of the second limiting ring 5. It is fixed by the second nut 403 and thread locking agent to achieve a stable connection between the second T-shaped connector 4 and the first T-shaped connector 2.

[0050] The third keyway 402 is located on the inner wall of the second T-shaped connector 4. When the second T-shaped connector 4 is installed inside the first T-shaped connector 2, it can be connected to a connecting shaft with a smaller diameter via spline through this keyway.

[0051] Second nut 403: threaded connection to one end of the second plug 401 located in the second half groove, and cooperates with thread locking agent to fix the second T-shaped connector 4 and the first T-shaped connector 2.

[0052] Working principle:

[0053] In this application, the gear body 1 can be directly splined to the connecting shaft via the first keyway 101 to achieve the installation of the connecting shaft. To accommodate a connecting shaft with a smaller diameter, the first T-shaped connector 2 can be installed inside the gear body 1, allowing the four first plugs 201 to be inserted into the four first holes 102, and the first plugs 201 to be sleeved with the first half-groove 301. Then, a first nut 204 is installed at the end of the first plug 201, and thread-locking agent is filled into the first half-groove 301 to fix the first nut 204 and the first plug 201. At this point, it can be connected to a connecting shaft with a smaller diameter via the second keyway 203. This application can also incorporate a second T-shaped connector... Part 4 is installed inside the first T-shaped connector 2, so that the six second plugs 401 are inserted into the six second holes 202, and the second plugs 401 are sleeved with the second half groove of the second limiting ring 5. The second nut 403 is threadedly connected to the second plugs 401 to fix the second T-shaped connector 4. It is splined to the connecting shaft with a smaller shaft diameter through the third keyway 402, so that this application can be connected with connecting shafts of three different shaft diameters, making this application highly applicable. In this application, the diameter and groove diameter of the gear body 1, the first T-shaped connector 2 and the second T-shaped connector 4 can be customized and produced before leaving the factory as needed to adapt to different shafts on the same machine.

[0054] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A detachable plastic gear, comprising a gear body (1), a first key groove (101) is arranged on the inner wall of the gear body (1), characterized in that, The inner side of the gear body (1) is provided with a first adjusting assembly for adapting the gear body (1) to different shaft diameters, and the inner side of the first adjusting assembly is provided with a second adjusting assembly for adapting the gear body (1) to different shaft diameters; The first adjusting assembly comprises a first T-shaped connecting piece (2) and a first limiting ring (3), the first T-shaped connecting piece (2) is fixedly connected with four first plugs (201), a second key groove (203) is formed in the inner wall of the first T-shaped connecting piece (2), and four first half grooves (301) are formed in the side of the first limiting ring (3) away from the first T-shaped connecting piece (2); the four first half grooves (301) respectively penetrate the first limiting ring (3) and are respectively sleeved on the inner side of the four first half grooves (301). The second adjusting mechanism comprises a second T-shaped connecting piece (4) and a second limiting ring (5), the second T-shaped connecting piece (4) is fixedly connected with six second plugs (401), a third key groove (402) is formed in the inner wall of the second T-shaped connecting piece (4), six second half grooves are formed in the side of the second limiting ring (5) away from the second T-shaped connecting piece (4), and the six second plugs (401) penetrate the second limiting ring (5) from the end away from the second T-shaped connecting piece (4) and are respectively sleeved on the inner side of the six second half grooves.

2. A detachable plastic gear as claimed in claim 1, wherein: The surface of the gear body (1) is provided with four first insertion holes (102), and the four first plugs (201) are respectively inserted into the four first insertion holes (102).

3. A detachable plastic gear as claimed in claim 2, wherein: The end of the four first plugs (201) located on the inner side of the first half groove (301) is threadedly connected with a first nut (204), the four first nuts (204) are respectively located on the inner side of the four first half grooves (301), and the inner side of the four first half grooves (301) is filled with a threaded locking agent.

4. A detachable plastic gear as claimed in claim 3, wherein: The surface of the first T-shaped connecting piece (2) is provided with six second insertion holes (202), and the six second plugs (401) are respectively sleeved in the six second insertion holes (202).

5. A detachable plastic gear as claimed in claim 4, wherein: The end of the six second plugs (401) located in the second half groove is threadedly connected with a second nut (403), and the six second nuts (403) are respectively located in the six second half grooves.

6. A detachable plastic gear as claimed in claim 5, wherein: The six second half grooves are filled with a threaded locking agent.

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