Flexible gear for assembling harmonic reducer
By designing a flexible wheel body with heat dissipation components in the harmonic reducer, the thermal fatigue problem caused by severe heat generation of flexible gears is solved, and a longer service life is achieved.
Patent Information
- Application Number
- CN202420873161.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-25
- Publication Date
- 2025-04-15
- Estimated Expiration
- 2034-04-25
AI Technical Summary
The flexible gears in the harmonic reducer generate severe heat due to the fast speed of the internal wave generator, which can easily cause metal thermal fatigue and affect service life.
A soft wheel for assembly of harmonic reducer is designed, including a soft wheel body and a heat dissipation assembly. The heat dissipation components include external threaded rings, internal threaded rings, fixed pipes and heat dissipation fan blades. These components drive the heat dissipation fan blades to effectively discharge heat inside the soft wheel.
Through effective heat dissipation, the temperature inside the soft wheel is reduced, metal thermal fatigue is avoided, and the service life is significantly improved.
Smart Images

Figure CN222760270U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of harmonic reducers, in particular to a flexible wheel for assembling a harmonic reducer. Background Art
[0002] The harmonic reducer is composed of a flexible gear, a rigid gear and a wave generator. The transmission of its motion or power is achieved by forcing the flexible gear to produce elastic deformation under the action of the wave generator, and interact with the rigid gear to achieve the purpose of transmission. Therefore, the flexible gear is the most core basic component of the harmonic reducer.
[0003] During the use of the flexible wheel, the internal wave generator rotates at a high speed, causing serious heat generation of the flexible wheel, which can easily cause metal thermal fatigue, seriously affecting the service life of the flexible wheel. In severe cases, it can directly lead to damage to the flexible wheel. For this reason, we propose a flexible wheel for assembling a harmonic reducer. Utility Model Content
[0004] The technical problem to be solved by the utility model is to overcome the existing defects and provide a flexible wheel for assembling a harmonic reducer, which can effectively dissipate heat and avoid damage caused by excessive temperature, and can effectively solve the problems in the background technology.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a flexible wheel for assembling a harmonic reducer, comprising a flexible wheel body and a heat dissipation component;
[0006] Flexspline body: a mounting ring is fixed at the right end of the interior, and evenly distributed flexspline teeth are arranged at the left end of the surface of the flexspline body;
[0007] Heat dissipation component: comprises an external thread ring, an internal thread ring, a fixed tube and heat dissipation blades, the left end of the assembly ring is fixed with an external thread ring, the surface of the external thread ring is threadedly connected with an internal thread ring, the left end of the internal thread ring is fixed with a fixed tube, the circumferential surface of the fixed tube is fixed with evenly distributed heat dissipation blades, the circumferential surface of the fixed tube is installed with a guide component, and the heat generated inside the flexible wheel body is discharged by setting the heat dissipation component.
[0008] Furthermore, the guide assembly includes a conical guide ring and a guide groove. The conical guide ring is fixed on the circumferential surface of the fixed tube, and the surface of the conical guide ring is fixed with evenly distributed guide grooves. The hot air is guided by setting the guide assembly.
[0009] Furthermore, evenly distributed heat dissipation holes are provided on the end face of the assembly ring, and the heat dissipation holes correspond to the guide grooves. A filter is fixed to the right end of the heat dissipation hole. The filter can effectively prevent external dust from entering the interior of the flexible wheel body through the heat dissipation hole.
[0010] Furthermore, evenly distributed support bars are fixed on the circumferential surface of the assembly ring, and all the support bars are connected by a connecting ring. The strength of the assembly ring and the flexible wheel body is improved by providing the support bars and the connecting ring.
[0011] Furthermore, evenly distributed assembly holes are provided on the end surface of the assembly ring, and a reinforcement ring is fixed inside the assembly hole, so that the strength of the assembly hole is improved by providing the reinforcement ring.
[0012] Furthermore, evenly distributed fixing grooves are provided inside the wheel wall of the flexspline wheel body, and reinforcing ribs are fixed inside the fixing grooves. The strength of the flexspline wheel body is further improved by providing the reinforcing ribs.
[0013] Compared with the prior art, the utility model has the following beneficial effects: the flexible wheel for assembling the harmonic reducer has the following advantages:
[0014] By setting up the heat dissipation component, the wave generator of the harmonic reducer located inside the flexible wheel body will drive the flexible wheel body to rotate during use. The rotation of the flexible wheel body drives all the heat dissipation fan blades to rotate, so that the heat inside the flexible wheel body can be discharged through the heat dissipation holes. In this case, the temperature inside the flexible wheel body can be effectively reduced, thereby avoiding metal thermal fatigue and greatly improving the service life. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a schematic diagram of the front structure of the utility model;
[0016] Figure 2 This is a schematic diagram of the structure of the heat dissipation component of the utility model;
[0017] Figure 3 It is a schematic diagram of the rear structure of the utility model.
[0018] In the figure: 1 flexible wheel body, 2 assembly ring, 3 heat dissipation assembly, 31 external thread ring, 32 internal thread ring, 33 fixed pipe, 34 heat dissipation fan blade, 4 guide assembly, 41 conical guide ring, 42 guide groove, 5 heat dissipation hole, 6 filter screen, 7 support bar, 8 connection ring, 9 reinforcement ring, 10 flexible wheel teeth, 11 reinforcement rib. DETAILED DESCRIPTION
[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0020] See also Figure 1-3, This embodiment provides a technical solution: a flexible wheel for assembling a harmonic reducer, comprising a flexible wheel body 1 and a heat dissipation component 3;
[0021] Flexspline wheel body 1: A mounting ring 2 is fixed to the right end of the interior, and evenly distributed flexspline teeth 10 are arranged on the left end of the surface of the flexspline wheel body 1;
[0022] Heat dissipation component 3: comprises an external thread ring 31, an internal thread ring 32, a fixed tube 33 and heat dissipation blades 34. The left end of the assembly ring 2 is fixed with the external thread ring 31, the surface of the external thread ring 31 is threadedly connected with the internal thread ring 32, the left end of the internal thread ring 32 is fixed with the fixed tube 33, the circumferential surface of the fixed tube 33 is fixed with evenly distributed heat dissipation blades 34, the circumferential surface of the fixed tube 33 is installed with a guide component 4, the guide component 4 comprises a conical guide ring 41 and a guide groove 42, the circumferential surface of the fixed tube 33 is fixed with a conical guide ring 41, the surface of the conical guide ring 41 is fixed with evenly distributed guide grooves 42, the hot air is guided by setting the guide component 4, and the heat generated inside the flexible wheel body 1 is discharged by setting the heat dissipation component 3.
[0023] Among them: evenly distributed heat dissipation holes 5 are opened on the end surface of the assembly ring 2, the heat dissipation holes 5 correspond to the guide grooves 42, and a filter screen 6 is fixed to the right end inside the heat dissipation hole 5. By setting the filter screen 6, it is possible to effectively prevent external dust from entering the interior of the flexible wheel body 1 through the heat dissipation hole 5.
[0024] Among them, evenly distributed support bars 7 are fixed on the circumferential surface of the assembly ring 2, and all the support bars 7 are connected by a connecting ring 8. The strength of the assembly ring 2 and the flexible wheel body 1 is improved by providing the support bars 7 and the connecting ring 8.
[0025] Among them, evenly distributed assembly holes are opened on the end surface of the assembly ring 2, and a reinforcement ring 9 is fixed inside the assembly hole. The reinforcement ring 9 is provided to improve the strength of the assembly hole.
[0026] Among them, evenly distributed fixing grooves are opened inside the wheel wall of the flexspline wheel body 1, and reinforcing ribs 11 are fixed inside the fixing grooves. The strength of the flexspline wheel body 1 is further improved by providing the reinforcing ribs 11.
[0027] The working principle of a flexible wheel for assembling a harmonic reducer provided by the utility model is as follows: when in use, the wave generator of the harmonic reducer can be installed into the interior of the flexible wheel body 1, and the rotating wave generator after installation will drive the flexible wheel body 1 to rotate, and the rotation of the flexible wheel body 1 drives the assembly ring 2 to rotate, and the rotation of the assembly ring 2 drives the fixed tube 33 to rotate, and the rotation of the fixed tube 33 drives all the heat dissipation blades 34 to rotate, and the rotation of all the heat dissipation blades 34 can inject the heat inside the flexible wheel body 1 into the interior of all the heat dissipation holes 5 through the evenly distributed guide grooves 42, and then discharge it through the evenly distributed heat dissipation holes 5. In this case, the temperature inside the flexible wheel body 1 can be effectively reduced, thereby avoiding metal thermal fatigue, thereby greatly improving the service life.
[0028] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.
Claims
1. A flexible wheel for assembling a harmonic reducer, characterized in that: It comprises a flexible wheel body (1) and a heat dissipation component (3); A flexspline wheel body (1): a mounting ring (2) is fixed to the right end of the interior, and evenly distributed flexspline teeth (10) are arranged at the left end of the surface of the flexspline wheel body (1); The heat dissipation component (3) comprises an external thread ring (31), an internal thread ring (32), a fixed tube (33) and heat dissipation blades (34); the external thread ring (31) is fixed to the left end of the assembly ring (2); the surface of the external thread ring (31) is threadedly connected to the internal thread ring (32); the left end of the internal thread ring (32) is fixed to the fixed tube (33); the circumferential surface of the fixed tube (33) is fixed with evenly distributed heat dissipation blades (34); and the circumferential surface of the fixed tube (33) is installed with a flow guide component (4).
2. A flexible spline for assembling a harmonic reducer according to claim 1, characterized in that: The flow guide assembly (4) comprises a conical flow guide ring (41) and a flow guide groove (42); the conical flow guide ring (41) is fixed on the circumferential surface of the fixed tube (33); and the surface of the conical flow guide ring (41) is fixed with evenly distributed flow guide grooves (42).
3. The flexible spline for assembling a harmonic reducer according to claim 2, characterized in that: The end surface of the assembly ring (2) is provided with evenly distributed heat dissipation holes (5), the heat dissipation holes (5) correspond to the guide grooves (42), and a filter screen (6) is fixed at the right end inside the heat dissipation hole (5).
4. The flexible spline for assembling a harmonic reducer according to claim 1, characterized in that: Evenly distributed support bars (7) are fixed on the circumferential surface of the assembly ring (2), and all the support bars (7) are connected via a connecting ring (8).
5. The flexible spline for assembling a harmonic reducer according to claim 1, characterized in that: The end surface of the assembly ring (2) is provided with evenly distributed assembly holes, and a reinforcement ring (9) is fixed inside the assembly hole.
6. The flexible spline for assembling a harmonic reducer according to claim 1, characterized in that: The wheel wall of the flexspline wheel body (1) is provided with evenly distributed fixing grooves, and reinforcing ribs (11) are fixed inside the fixing grooves.