Compatible gear
By designing compatible gears, the problem of low installation efficiency caused by the diversified design of gears in planetary mechanisms is solved, realizing a stable connection and diversified adaptation between gears and installation parts, and improving the assembly efficiency and transmission stability of planetary reducers.
Patent Information
- Application Number
- CN202423294378.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2034-12-30
AI Technical Summary
In existing planetary mechanisms, the diverse gear designs of the sun gear and input shaft lead to a large variety of parts and low installation efficiency.
Design a compatible gear, including a flange, a gear body, and a transmission gear. Through the connection structure of the flange and the transmission gear, a fixed connection and rotational contact between the gear and the mounting part are achieved, and bearing installation is supported. It is suitable for use as an input shaft or sun gear in a planetary reducer.
It improves the assembly efficiency of planetary reducers, ensures a firm connection between gears and other components and stable transmission, reduces vibration and noise, and improves the smoothness and reliability of transmission.
Smart Images

Figure CN223768057U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of gear shaft technology, and in particular to a compatible gear. Background Technology
[0002] Planetary gear mechanisms are a common type of transmission mechanism, capable of both speed reduction and transmitting large amounts of power. A planetary gear mechanism is a special type of gear transmission system, consisting of a central gear (sun gear), several smaller surrounding gears (planet gears), and an external ring gear (gear ring or inner ring). In existing planetary gear mechanisms, the sun gear used in the sun gear or the input shaft of the planetary reducer needs to interface with the motor's input shaft and also needs to mesh with the planet gears of other planetary gear mechanisms during multi-stage reduction assembly. This results in diverse designs for the sun gear and input shaft gears, leading to a large number of internal components in the reducer and consequently, low installation efficiency. Utility Model Content
[0003] The technical problem to be solved by this utility model is: in order to overcome the problem that the multi-stage reduction mechanism in the prior art has a variety of gears that cooperate with the planetary gears of other planetary mechanisms when they are assembled, resulting in a variety of gears that serve as the sun gear and input shaft, and thus a variety of internal parts of the reducer, leading to low installation efficiency, a compatible gear is provided.
[0004] The technical solution adopted by this utility model to solve its technical problem is: a compatible gear, including a flange, a wheel body and a transmission gear;
[0005] The wheel body has a shaft hole that passes through the wheel body. The wheel body is divided into a connecting section, a main body section and a transmission section from left to right. The right end of the connecting section is fixedly connected to the left end of the main body section, and the right end of the main body section is fixedly connected to the left end of the transmission section.
[0006] The flange and the connecting section are fixedly connected, and the left end face of the flange and the left end face of the connecting section are flush. A positioning groove extending radially is provided on the flange, and the positioning groove is connected to the shaft hole. A first connecting hole extending axially along the flange is provided on the upper part of the positioning groove.
[0007] The main body section of the wheel is used for mounting bearings or gears;
[0008] The transmission gear and the transmission end are fixedly connected. Through the design of the flange and the transmission gear, the gear can be fixedly connected to the mounting part, and can also achieve rotational contact through the shaft hole and shaft fit. It can also be installed in the housing through the bearing, realizing the diversified adaptation and installation of a single gear. In addition, it can be used as an input shaft in the planetary reducer, and can also be used as a sun gear, thereby improving assembly efficiency.
[0009] To address the issue of loose connections or incompatible installations of gears and other components, the flange further includes a connecting block that protrudes from its outer circumferential surface and extends circumferentially and is connected end to end. The connecting block has several second connecting holes spaced apart.
[0010] To address the issue of loose connections or incompatible installations of gears and other components, the flange is further provided with several third connecting holes and several fourth connecting holes on its left end face, wherein the diameter of the third connecting holes is larger than that of the fourth connecting holes.
[0011] To address the issue of not being able to install bearings when gears need to be rotatably connected to the gearbox, a further improvement is made by including a transmission gear with an outer diameter smaller than that of the main body section.
[0012] Furthermore, an annular groove is formed on the outer periphery of the main body section near the end of the transmission section.
[0013] To address the issue of a single mounting hole, the shaft hole further includes a first mounting hole, a transition hole, a second mounting hole, a connecting hole, and a third mounting hole connected sequentially from left to right. The first mounting hole is a tapered hole that gradually narrows from left to right, while the second and third mounting holes are cylindrical holes. The diameter of the transition hole is larger than the diameter of the right end of the first mounting hole, the diameter of the second mounting hole is smaller than the diameter of the right end of the first mounting hole, the diameter of the connecting hole is smaller than the diameter of the second mounting hole, and the diameter of the connecting hole is smaller than the diameter of the third mounting hole.
[0014] The beneficial effects of this utility model are as follows: The compatible gear provided by this utility model, through the design of the flange and the transmission gear, enables the gear to be fixedly connected to the mounting part, to achieve rotational contact through the shaft hole and shaft fit, and to be installed in the housing through the bearing, so as to realize the diversified adaptation and installation of a single gear. In addition, it can be used as an input shaft in the planetary reducer, and can also be used as a sun gear, thereby improving the assembly efficiency. Attached Figure Description
[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0016] Figure 1 This is a schematic diagram of the structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the flange end face of this utility model;
[0018] Figure 3 This is a schematic diagram of the structure of the end face of the transmission gear of this utility model.
[0019] In the diagram: 1. Flange, 11. Positioning groove, 12. First connecting hole, 13. Connecting block, 14. Second connecting hole, 15. Third connecting hole, 16. Fourth connecting hole, 2. Wheel body, 21. Connecting section, 22. Main body section, 221. Ring groove, 23. Transmission section, 3. Transmission gear, 4. Shaft hole, 41. First mounting hole, 42. Transition hole, 43. Second mounting hole, 44. Connecting hole, 45. Third mounting hole. Detailed Implementation
[0020] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.
[0021] like Figure 1 This is a structural schematic diagram of the present invention, a compatible gear, including a flange 1, a wheel body 2, and a transmission gear 3;
[0022] like Figure 1 , 2 As shown, the wheel body 2 has a shaft hole 4 that passes through the wheel body 2. The wheel body 2 is divided into a connecting section 21, a main body section 22 and a transmission section 23 from left to right. The right end of the connecting section 21 is fixedly connected to the left end of the main body section 22, and the right end of the main body section 22 is fixedly connected to the left end of the transmission section 23. The wheel body 2 can be used for bearing installation or gear installation.
[0023] like Figure 1 , 2 As shown, flange 1 and connecting section 21 are fixedly connected, and the left end face of flange 1 is flush with the left end face of connecting section 21. A positioning groove 11 extending radially is provided on flange 1, communicating with shaft hole 4. A first connecting hole 12 extending axially from flange 1 is provided on the upper part of positioning groove 11. A connecting block 13 extending circumferentially and connected end-to-end is formed protruding from the outer circumferential surface of flange 1. Several second connecting holes 14 are spaced apart on the connecting block 13. Several third connecting holes 15 and several fourth connecting holes 16 are provided on the left end face of flange 1, with the diameter of the third connecting holes 15 being larger than the diameter of the fourth connecting holes 16. Flange 1 is bolted together, which can firmly connect the various components of the gearbox. This connection method is particularly important in high-speed and heavy-load applications, ensuring the normal operation of the gear transmission. During gear transmission, the flange can prevent relative movement between components, thereby maintaining transmission stability.
[0024] The main body section 22 of the wheel body 2 is used for mounting bearings or gears;
[0025] The transmission gear 3 is fixedly connected to the transmission end.
[0026] like Figure 1 ,3 As shown, the outer diameter of the transmission gear 3 is smaller than the outer diameter of the main body section 22. Through the design of the flange 1 and the transmission gear 3, the gear can be fixedly connected to the mounting part, and can also be rotated through the shaft hole 4 and shaft. It can also be installed in the housing through the bearing, realizing the diversified adaptation and installation of a single gear. In addition, it can be used as an input shaft in the planetary reducer, and can also be used as a sun gear, thereby improving the assembly efficiency.
[0027] An annular groove 221 is formed on the outer periphery of the main body section 22 near the end of the transmission section 23. The annular groove 221 can strengthen the connection between the gear and other components, ensure a more robust assembly, and thus transmit greater torque. The annular groove 221 can reduce vibration and noise during gear transmission, and improve the smoothness and reliability of the transmission.
[0028] The shaft hole 4 includes a first mounting hole 41, a transition hole 42, a second mounting hole 43, a connecting hole 44, and a third mounting hole 45 connected sequentially from left to right. The first mounting hole 41 is a tapered hole that gradually narrows from left to right. The second mounting hole 43 and the third mounting hole 45 are cylindrical holes. The diameter of the transition hole 42 is larger than the diameter of the right end of the first mounting hole 41, the diameter of the second mounting hole 43 is smaller than the diameter of the right end of the first mounting hole 41, the diameter of the connecting hole 44 is smaller than the diameter of the second mounting hole 43, and the diameter of the connecting hole 44 is smaller than the diameter of the third mounting hole 45. The first mounting hole 41 can be used to install tapered shafts, and the second mounting hole 43 and the third mounting hole 45 can be used to connect cylindrical shafts. The stepped shaft hole 4 allows for more precise installation of gears on the shaft, thereby ensuring a tighter and smoother meshing between gears. This tight meshing helps to reduce energy loss during transmission and improve transmission efficiency.
[0029] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.
Claims
1. A compatible gear, characterized by, It comprises a flange (1), a wheel body (2) and a transmission gear (3). The wheel body (2) is provided with an axle hole (4) penetrating the wheel body (2), and the wheel body (2) is sequentially divided into a connecting section (21), a main body section (22) and a transmission section (23) from left to right, the connecting section (21) is fixedly connected with the left end of the main body section (22), and the main body section (22) is fixedly connected with the right end of the transmission section (23). The flange (1) is fixedly connected with the connecting section (21), and the left end surface of the flange (1) is flush with the left end surface of the connecting section (21), the flange (1) is provided with a positioning groove (11) extending along the radial direction thereof, the positioning groove (11) is communicated with the axle hole (4), and the positioning groove (11) is provided with a first connecting hole (12) extending along the axial direction of the flange (1). The main body section (22) of the wheel body (2) is used for mounting a bearing or a gear. The transmission gear (3) is fixedly connected with the transmission end.
2. A compatible gear as claimed in claim 1, wherein: The outer circumferential surface of the flange (1) is protruded to form a connecting block (13) extending along the circumferential direction and connected at the head and tail, and the connecting block (13) is provided with a plurality of second connecting holes (14) spaced apart.
3. A compatible gear as claimed in claim 1, wherein: The left end surface of the flange (1) is provided with a plurality of third connecting holes (15) and a plurality of fourth connecting holes (16), and the diameter of the third connecting holes (15) is larger than that of the fourth connecting holes (16).
4. A compatible gear as claimed in claim 1, wherein: The outer diameter of the transmission gear (3) is smaller than that of the main body section (22).
5. A compatible gear as claimed in claim 1, wherein: The outer circumferential surface of the main body section (22) is provided with a ring groove (221) near one end of the transmission section (23).
6. A compatible gear as claimed in claim 1, wherein: The axle hole (4) comprises a first mounting hole (41), a transition hole (42), a second mounting hole (43), a connecting hole (44) and a third mounting hole (45) communicated in sequence from left to right, the first mounting hole (41) is a tapered hole tapering from left to right, the second mounting hole (43) and the third mounting hole (45) are columnar holes, the diameter of the transition hole (42) is larger than that of the right end of the first mounting hole (41), the diameter of the second mounting hole (43) is smaller than that of the right end of the first mounting hole (41), the diameter of the connecting hole (44) is smaller than that of the second mounting hole (43), and the diameter of the connecting hole (44) is smaller than that of the third mounting hole (45).