一种工程机械驱动桥生产用中心架传动装置
By introducing a belt drive mechanism into the milling and turning machining center, independent control of the center rest and tailstock chuck is achieved, which solves the limitation of the center rest and tailstock chuck moving in the same direction, and improves the workpiece machining flexibility and equipment practicality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGXI FENYI DRIVING AXLE CO LTD
- Filing Date
- 2025-07-11
- Publication Date
- 2026-07-17
AI Technical Summary
The center rest and tailstock chuck of existing mill-turn machining centers can only move linearly in the same direction simultaneously, which limits the machining specifications and hole/slot positions of the workpiece and affects the practicality of the mill-turn machining center.
A belt drive mechanism is adopted to realize independent linear movement control of the center frame and the tailstock chuck. The direction and speed of movement of the center frame and the tailstock chuck can be adjusted independently by the motor-driven belt drive.
Asynchronous movement of the center rest and tailstock chuck was achieved, improving the practicality and operational flexibility of the mill-turn machining center and enhancing the applicability of the equipment.
Smart Images
Figure CN224508991U_ABST
Abstract
Claims
1. A center frame transmission device for producing drive axles for engineering machinery, comprising a ball screw linear movement mechanism, a center frame, and a tailstock chuck. The ball screw linear movement mechanism is located on the rear side of the center frame and the tailstock chuck, and includes a lead screw, a first lead screw nut, and a second lead screw nut. The first lead screw nut is threaded to the middle of the lead screw, and the second lead screw nut is threaded to the lead screw and located on the right side of the first lead screw nut. A first slide is provided at the rear end of the center frame. The upper and lower ends of the first slide can move linearly left and right along the machine tool guide rail. A bearing seat plate is provided on the rear side of the first slide. The outer circular surface of the first lead screw nut is fastened to the inner ring of the rolling bearing in the bearing seat plate, forming a rotatable connection with the bearing seat plate. A second slide is provided at the rear end of the tailstock chuck. The upper and lower ends of the second slide can move linearly left and right along the machine tool guide rail. The second slide is connected to the second lead screw nut. The device is characterized in that: It also includes a connecting plate and a belt drive mechanism. The connecting plate is detachably and fixedly connected to the first slide. The belt drive mechanism includes a motor, a driving pulley, a synchronous belt, and a driven pulley. The motor is installed at the lower end of the connecting plate and can rotate in both directions. The driving pulley is installed on the output shaft of the motor. The driven pulley is fixedly connected to the first lead screw nut. The two ends of the synchronous belt mesh with the driving pulley and the driven pulley respectively.
2. A center drive for an engineering machine drive axle production according to claim 1, characterized in that: The connecting plate has multiple evenly distributed oval holes at the position corresponding to the motor. The motor is detachably and fixedly connected to the connecting plate through the oval holes. The synchronous belt is tensioned by adjusting the distance between the driving pulley and the driven pulley through the oval holes.
3. A center drive for an engineering machine drive axle production line as claimed in claim 1, characterized in that: The upper end of the connecting plate is provided with a first tensioning wheel and a second tensioning wheel for tensioning the synchronous belt. After installation, the synchronous belt is L-shaped, with the first tensioning wheel located at the outer corner of the synchronous belt and the second tensioning wheel located at the inner corner of the synchronous belt.
4. A center drive for an engineering machine drive axle production line as claimed in claim 3, characterized in that: The first tensioning pulley is a toothed idler pulley that meshes with the timing belt, and the second tensioning pulley is a smooth, toothless pulley.
5. A center drive for an engineering machine drive axle production line as claimed in claim 3, characterized in that: The connecting plate is provided with a first support shaft at a position corresponding to the first tensioning wheel. The first tensioning wheel is provided with 1-2 first deep groove ball bearings, and the inner ring of the first deep groove ball bearing is fastened to the first support shaft. The connecting plate is provided with a second support shaft at a position corresponding to the second tensioning wheel. The second tensioning wheel is provided with 1-2 second deep groove ball bearings, and the inner ring of the second deep groove ball bearing is fastened to the second support shaft.
6. A center drive for an engineering machine drive axle production line as claimed in claim 1, characterized in that: The connecting plate has a mounting base in the middle, the mounting base includes a vertical plate and a stiffening plate. The right end of the rear side of the vertical plate has a rearwardly extending boss. There are two stiffening plates, which are fixedly connected to the upper and lower sides of the front side of the vertical plate respectively. The right side of the vertical plate and the stiffening plate is fixedly connected to the left side of the connecting plate. The vertical plate has multiple mounting holes for detachable and fixed connection with the first slide.