一种单电机电动升降桌
By introducing a tension wheel and a winding wheel transmission component into a single-motor electric lifting table, combined with a worm gear drive, the problems of high precision in gear transmission and chain slippage are solved, thereby improving the synchronization and stability of the lifting column.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LOCTEK ERGONOMIC TECH CORP
- Filing Date
- 2025-07-28
- Publication Date
- 2026-07-17
AI Technical Summary
In existing single-motor electric lifting tables, the high precision of gear transmission leads to high cost and poor versatility, while the ring chain transmission is prone to loosening and slippage, affecting the synchronization and stability of the lifting column.
The transmission components include a tensioning wheel and a winding wheel. The transmission medium moves closer to the winding wheel when it passes around the tensioning wheel and moves further away when it passes around the tensioning wheel, thus maintaining the tension of the transmission medium. This is combined with a worm gear for direct drive, avoiding slack and slippage.
The synchronization of the lead screw inside the lifting column and the smoothness of lifting have been improved, transmission lag has been reduced, and the compactness and synchronization of the transmission components have been optimized.
Smart Images
Figure CN224504940U_ABST
Abstract
Claims
1. A single-motor electric lift table, characterized by: include Table frame; At least two lifting columns are connected to the bottom of the table frame, and each lifting column is connected to a screw and nut assembly for driving the lifting column to rise and fall. A transmission assembly includes a transmission medium and transmission wheels respectively connected to the top ends of the lead screws of two lifting columns. The two transmission wheels are connected by the transmission medium. The transmission assembly also includes at least one tensioning wheel and at least one winding wheel connected between the two transmission wheels. One side of the transmission medium passes around the winding wheel and the tensioning wheel in sequence. When the transmission medium passes around the winding wheel, one side of the transmission medium moves closer to the other side, and when the transmission medium passes around the tensioning wheel, one side of the transmission medium moves away from the other side, so that the transmission medium is in a tensioned state. The drive motor is connected to the lead screw and nut assembly of one of the lifting columns.
2. The single-motor power lift table of claim 1, wherein: The table frame is connected to a bracket extending into the interior of the table frame, and the tension wheel is rotatably connected to the bracket and is located inside the transmission medium.
3. The single-motor power lift table of claim 1, wherein: The rotating wheel is connected to the top of the lifting column and is located outside the transmission medium. The transmission medium bypasses the rotating wheel and moves towards the other side so that the rotating wheel is away from the transmission medium to form a clearance space. The drive motor is located in the clearance space.
4. The single-motor power lift table of claim 3, wherein: There are two rotating wheels, and the two rotating wheels are respectively connected to the top of the two lifting columns.
5. The single-motor power lift table of claim 3, wherein: A worm gear is coaxially connected to the lead screw of the lifting column. The worm gear is located below the transmission wheel. A worm is coaxially connected to the drive shaft of the drive motor and is connected to the worm gear for transmission.
6. The single-motor power lift table of claim 5, wherein: A motor base is installed on the top of the lifting column below the transmission wheel. The drive motor is connected to the motor base, and the worm and the worm wheel are both located inside the motor base.
7. The single-motor power lift table of claim 6, wherein: Each of the lifting columns is connected to a base at its top, the transmission wheel is disposed in the base, and the rotating wheel is rotatably connected to the base; an installation cavity is provided between the base and the top of the lifting column, and the motor mount is disposed in the installation cavity.
8. The single-motor power lift table of claim 5, wherein: The stroke of the lifting column connected to the worm gear is less than that of the other lifting column.
9. The single-motor electric lift table according to any one of claims 1 to 8, characterized in that: The transmission wheel is a toothed pulley, and the transmission medium is a synchronous belt, the teeth of the synchronous belt meshing with the teeth of the toothed pulley for transmission; or The transmission wheel is a sprocket, and the transmission medium is a ring chain, which meshes with the sprocket for transmission; or The transmission wheel is a pulley, and the transmission medium is a transmission belt, which drives the transmission belt through friction with the pulley.
10. The single-motor power lift table of claim 9, wherein: The tensioning wheel has teeth along its circumference, and the teeth of the tensioning wheel mesh with the teeth of the timing belt for transmission.