具有高度紧凑性的大扭矩多功能旋转马达
By integrating the stator housing, upper stator base, lower connecting base, and cycloidal wheel assembly, the problems of complex structure and insufficient torque in existing hydraulic rotary motors are solved, achieving high torque output and sealing performance, adapting to heavy-duty working conditions, and extending service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO XINCAN HYDRAULIC TRANSMISSION CO LTD
- Filing Date
- 2025-09-24
- Publication Date
- 2026-07-17
AI Technical Summary
Existing hydraulic rotary motors have complex structures, numerous parts, low integration, and insufficient output torque and power density, making it difficult to meet the requirements of heavy-duty working conditions. Furthermore, their complex external piping layout makes them prone to leakage.
A highly compact, high-torque, multi-functional rotary motor was designed, integrating a stator housing, upper stator base, lower connecting base, cycloidal wheel assembly, and double tapered roller bearing structure. It features a built-in rotary joint function, employs a pressure-compensated distributor and high-pressure seals to achieve high-power operation under high pressure, and generates high-torque output through the cycloidal wheel assembly.
It achieves a compact structure, high torque, and high integration, reduces external piping and connectors, adapts to harsh working conditions, extends service life, and ensures sealing and efficient torque output.
Smart Images
Figure CN224515297U_ABST
Abstract
Claims
1. A multi-functional rotary motor with a large torque and a high compactness, characterized by, include, The stator housing has a cavity for accommodating the air. The upper stator base is fixedly connected to the stator housing; it is used to install the fixed end; the upper stator base is provided with a main rotating oil port A, a gripper opening oil port B and a gripper closing oil port C, and a distributor with pressure compensation function is installed inside it; The lower connector is installed at the bottom of the stator housing and is used to connect the working load; The cycloidal wheel assembly is located inside the receiving cavity of the stator housing and is used to generate rotational torque; it includes an inner cycloidal wheel connected to the lower connecting seat via a key connection structure, and an intermediate cycloidal wheel that performs eccentric motion relative to the cycloidal wheel; The pressurized oil enters the distributor through the main rotating oil port, and is then distributed to the cycloidal wheel assembly through the distributor, driving the intermediate cycloidal wheel to make eccentric motion, thereby driving the inner cycloidal wheel and the lower connecting seat to rotate.
2. The multi-functional rotary motor with a large torque and a high compactness according to claim 1, wherein The lower connecting seat is supported in the upper stator seat and stator housing by upper tapered roller bearings and lower tapered roller bearings arranged back to back.
3. The multi-functional rotary motor with a large torque and a high compactness according to claim 2, wherein The housing of the upper tapered roller bearing is placed in the upper stator housing, and the housing of the lower tapered roller bearing is placed in the stator housing.
4. The highly compact large-torque multi-functional rotary motor according to claim 1, wherein A high-pressure sealing structure is provided between the stator housing and the lower connecting seat.
5. The highly compact, high-torque, multi-functional rotary motor as described in claim 1, characterized in that, The key connection structure includes, but is not limited to, splines or polygonal keys.