一种直线丝杆测功机
By integrating multiple testing technologies, the linear screw dynamometer solves the problems of insufficient accuracy and low automation of traditional testing methods, realizing multi-parameter, high-precision automated testing of robot screw joints, and improving testing efficiency and intelligence level.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 韩非
- Filing Date
- 2025-09-26
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional testing methods are insufficient to meet the multi-parameter, high-precision, and automated testing requirements of robot lead screw joints, and suffer from problems such as large human operation errors, low automation level, and incomplete load simulation.
Design a linear screw dynamometer that integrates components such as a cast iron frame, coupling, magnetic powder brake, tension loading mechanism, precision microphone, micro-displacement sensor, infrared sensor and infrared thermal imager to achieve high-precision and automated testing of multiple performance indicators.
It achieves integrated detection of multiple performance indicators, improves detection efficiency and accuracy, can simulate load changes under complex working conditions, and has failure warning and automatic control functions, thus enhancing the level of intelligence in detection.
Smart Images
Figure CN224517982U_ABST
Abstract
Claims
1. A linear ball screw dynamometer for detecting a ball screw sliding table module (9), characterized in that, include: Cast iron test stand (3), during testing the ball screw slide module (9) is located in the internal space of the cast iron test stand (3); The coupling (11) and the magnetic powder brake (12) are connected to the module screw (20) of the ball screw slide module (9) via the coupling (11). The magnetic powder brake (12) is installed in the cast iron frame (3). The tension loading mechanism is located inside the cast iron frame (3). The tension loading mechanism is connected to the main body of the ball screw slide module (9) and is used to apply a horizontal tension to the main body of the ball screw slide module (9). When the module screw (20) of the ball screw slide module (9) rotates, the magnetic powder brake (12) applies resistance in the opposite direction, forming a counter-pull with the tension loading mechanism. A precision microphone (10) is mounted on the main body of the ball screw slide module (9) to capture noise signals generated during the operation of the ball screw. A micro-displacement sensor (19) is mounted on the coupling (11) and is used to collect axial displacement data of the module lead screw (20) during forward and reverse rotation.
2. A linear-screw-rack dynamometer according to claim 1, characterized in that It also includes an infrared sensor (18) located within the cast iron frame (3) for real-time monitoring of local temperature changes, the infrared sensor (18) being positioned close to the ball screw slide module (9).
3. A linear-screw-rack dynamometer according to claim 2, characterized in that It also includes an infrared thermal imager (21) for scanning the temperature field of the entire ball screw and acquiring temperature distribution images, the infrared thermal imager (21) being directly facing the ball screw slide module (9).
4. The linear-screw-rod dynamometer according to claim 1, characterized in that, The tension loading mechanism includes a loading motor (14) and a loading ball screw (8). The loading motor (14) is connected to the loading ball screw (8) to drive the loading ball screw (8) to rotate and move axially.
5. A linear-screw-rack dynamometer according to claim 4, characterized in that One end of the loading ball screw (8) is provided with a first ball bearing (17), and the loading ball screw (8) is rotatably connected to the main body of the ball screw slide module (9) through the first ball bearing (17).
6. A linear-screw-rack dynamometer according to claim 4, wherein The output shaft of the loading motor (14) is equipped with a dynamic torque speed sensor (15).
7. A linear-screw-rod dynamometer according to claim 4, characterized in that, The tension loading mechanism includes a fixedly connected mechanical connection part (5) and an anti-rotation housing (7), and also includes a push-pull force sensor (4). The loading ball screw (8) is fitted with a screw nut (16). The screw nut (16) is integrally provided with a nut flange (6). The screw nut (16) is fixed in the anti-rotation housing (7) through the nut flange (6). The loading ball screw (8) moves through the anti-rotation housing (7). The anti-rotation housing (7) restricts the rotation of the screw nut (16) so that the screw nut (16) only moves in a straight line along the screw axis. The anti-rotation housing (7) is connected to the push-pull force sensor (4) through the mechanical connection part (5). The push-pull force sensor (4) is rotatably connected to the cast iron frame (3) through the second ball bearing (13). The push-pull force sensor (4) is used to monitor the axial force on the lead screw nut (16) during its movement in real time.
8. A linear-screw-rod dynamometer according to any one of claims 1-7, characterized in that, The cast iron test stand (3) is provided with a protective shell (22) so that a closed test space is formed inside the cast iron test stand (3).