Harmonic reducer with double flexible gears
By designing a dual-flexible-wheel harmonic reducer, which employs a face-to-face arrangement of flexible and rigid wheels connected by roller bearings, the problem of insufficient torque and rigidity in existing harmonic reducers is solved, thereby improving the large load capacity.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-07
- Publication Date
- 2026-03-10
AI Technical Summary
The existing harmonic reducer has a simple meshing structure between the flexible and rigid wheels, resulting in limited torque and insufficient overall rigidity, which restricts its application in heavy load scenarios.
Design a dual-flexible-wheel harmonic reducer, which uses two flexible wheels arranged face to face. Each flexible wheel meshes with the internal gear of the rigid wheel and rotates synchronously with the motor stator through a connecting flange. The connecting flange is connected to the rigid wheel through roller bearings, and the bearing span is increased to improve rigidity.
It achieves double the torque output, improves the rigidity and load capacity of the harmonic reducer, and is suitable for heavy load scenarios.
Smart Images
Figure CN223984755U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of harmonic reducer, concretely relates to a double flexspline harmonic reducer. BACKGROUND
[0002] The flexspline and the rigid wheel of the existing harmonic reducer are engaged only with a set of structure, and the torque generated by rotation needs to be transmitted through flexspline deformation, in order to achieve corresponding deformation. The torque that can be transmitted by a single flexspline is limited, thereby making the output load of the harmonic reducer lower. In addition, cross roller bearings are generally used at the connecting flanges, and because the inner and outer rings of the bearings have a small span, the overall rigidity of the harmonic reducer is also small, so the harmonic reducer of this type cannot be applied in a large load scenario. SUMMARY
[0003] The utility model solves the technical problem that the above-mentioned defects of the prior art are overcome and provides a double flexspline harmonic reducer, which has large torque, good rigidity and large output load.
[0004] The technical scheme adopted by the utility model to solve the above technical problem is as follows:
[0005] A double flexspline harmonic reducer comprises a rigid wheel, a connecting flange, a connecting end bearing, a flexspline, a motor stator, a motor rotor and a flexible bearing, the connecting flange, the flexspline and the flexible bearing each have two pieces; the two flexsplines are arranged face to face, each flexspline tooth end is matched with the inner teeth of the rigid wheel, and each flexspline connecting end is connected with the connecting flanges on both sides; the motor rotor is integrated with a wave generator; the connecting flanges on both sides are arranged on the motor stator and rotate synchronously; and the connecting flanges on both sides are connected with the rigid wheel through the connecting end bearings.
[0006] More preferably, the connecting end bearings adopt roller bearings, thereby increasing the bearing span and improving the rigidity.
[0007] The connecting flanges on both sides can also be connected with the connecting flanges through external loads, and an internal motor can be used, or a central shaft can be used to input power.
[0008] Compared with the prior art, the double flexspline harmonic reducer of the utility model can provide double torque, has large torque, good rigidity and large output load. BRIEF DESCRIPTION OF DRAWINGS
[0009] Figure 1 is a structural schematic view of the double flexspline harmonic reducer of the utility model embodiment.
[0010] In the drawing, 10 is a rigid wheel, 20 is a connecting flange, 30 is a connecting end bearing, 40 is a flexspline, 50 is a motor stator, 60 is a motor rotor, 61 is a wave generator and 70 is a flexible bearing. DETAILED DESCRIPTION
[0011] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0012] like Figure 1 As shown, a dual-flexible harmonic reducer includes a rigid wheel 10, a connecting flange 20, a connecting end bearing 30, a flexible wheel 40, a motor stator 50, a motor rotor 60, and a flexible bearing 70.
[0013] There are two of each of the connecting flange 20, flexible wheel 40 and flexible bearing 70.
[0014] The motor rotor 60 integrates a wave generator 61.
[0015] The two flexible wheels 40 are arranged facing each other, with the tooth end of each flexible wheel 40 engaging with the internal teeth of the rigid wheel 10, and the connecting end of each flexible wheel 40 connected to the connecting flanges 20 on both sides. Therefore, it can provide double the torque.
[0016] The two connecting flanges 20 are arranged on both sides of the motor stator 50 and rotate synchronously, thus doubling the output load.
[0017] The two connecting flanges 20 are respectively connected to the rigid wheel 10 through the connecting end bearing 30.
[0018] The connecting flanges 20 on both sides use roller bearings, which can increase the bearing span and thus improve rigidity.
[0019] The two connecting flanges 20 can be connected via the built-in motor stator shaft 50, the external motor rotor is built-in, and the wave generator is integrated with the external motor rotor.
[0020] The two connecting flanges 20 can also be connected to the connecting flanges via an external load, and can use a built-in motor or a central shaft to input power.
Claims
1. A dual harmonic gear reducer, characterized by: It comprises a rigid wheel, a connecting flange, a connecting end bearing, a flexible wheel, a motor stator, a motor rotor and a flexible bearing, the connecting flange, the flexible wheel and the flexible bearing each have two pieces; the two flexible wheels are arranged face to face, each flexible wheel tooth end is matched with the inner tooth of the rigid wheel, and each flexible wheel connecting end is connected with the connecting flange on both sides, the motor rotor is integrated with a wave generator, the connecting flanges on both sides are arranged on the motor stator and rotate synchronously, and the connecting flanges on both sides are connected with the rigid wheel through the connecting end bearings respectively.
2. The dual-pulley harmonic reducer of claim 1, wherein: The connecting end bearing adopts a roller bearing.
3. The dual-pulley harmonic reducer of claim 1, wherein: The connecting flanges on both sides can be connected with the connecting flange through an external load and input power by using an internal motor or a central shaft.