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Transmission assembly for lifting stand column and lifting stand column

A technology for lifting columns and assemblies, which is applied to lifting frames, lifting devices, etc., can solve problems such as affecting the user's use experience and easy to generate vibration, and achieve the effect of improving shock absorption, reducing force and smooth transmission.

Active Publication Date: 2019-03-01
ZHEJIANG JIECHANG LINEAR MOTION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the lifting columns of lifting mechanisms such as lifting tables and lifting chairs on the market often set the driving device on the upper end of the transmission assembly and directly fix the driving device on the bottom surface of the lifting plane to realize the connection between the lifting column and the lifting plane. The motor is prone to vibration during use, and the vibration of the motor is easily transmitted to the lifting plane, which makes the lifting plane vibrate greatly during the lifting process, which affects the user's experience

Method used

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  • Transmission assembly for lifting stand column and lifting stand column
  • Transmission assembly for lifting stand column and lifting stand column
  • Transmission assembly for lifting stand column and lifting stand column

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] like Figure 1 to Figure 6 As shown, the present invention provides a transmission assembly for a lifting column. The lifting column includes an inner tube 8, and the transmission assembly includes a hollow shaft 2 provided with an external thread, a transmission screw 1 located in the hollow shaft 2, a sleeve A sleeve 4 outside the hollow shaft 2, a guide tube 3 rotatably limited in the sleeve 4, and a drive device 5 for driving the guide tube 3 to rotate, the guide tube 3 and the hollow shaft 2 can be synchronized Rotate and the guide tube 3 and the hollow shaft 2 can be relatively stretched along the axial direction, the transmission screw 1 can rotate synchronously with the hollow shaft 2 and the transmission screw 1 and the hollow shaft 2 can be relatively stretched along the axial direction, the driving device 5 is located at The inner tube 8 is fixedly installed on the upper end of the casing 4, the lower end of the casing 4 is fixedly connected with the first dr...

Embodiment 2

[0058] like Figure 8 As shown, the main difference between this embodiment and Embodiment 1 is that the top plate 81 is a flexible top plate, that is, the top plate is made of flexible materials. At this time, the driving device can be arranged without a gap between the flexible top plate, and the flexible top plate can buffer the driving device. vibration.

Embodiment 3

[0060] like Figure 9 As shown, the main difference between this embodiment and the first embodiment is that the transmission assembly further includes a middle pipe 10 , and the middle pipe 10 is located between the inner pipe 8 and the outer pipe 9 . The advantage of this setting is that the installation distance of the lifting column can be reduced by setting the three-section pipe for synchronous expansion and contraction.

[0061] In this embodiment, the lower end of the hollow shaft 2 is provided with a second drive nut 6 with a fixed circumferential position, and the second drive nut 6 is screwed with the drive screw 1, and the hollow shaft 2 is rotatably connected to the second drive nut. 6 is positioned in the axial direction, and the outside of the second drive nut 6 is provided with a lock structure 61 that limits the rotation of the second drive nut 6. The lock structure 61 is fixedly connected to the lower end of the middle tube 10, and the second drive nut 6 is p...

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Abstract

The invention provides a transmission assembly for a lifting stand column and the lifting stand column. The lifting stand column comprises an inner pipe. The transmission assembly comprises a hollow core shaft, a transmission threaded rod, a sleeving arranged on the exterior of the hollow core shaft, a guide pipe limited into the sleeving and a drive device used for driving the guide pipe to rotate. The guide pipe and the hollow core shaft can synchronously rotate, and the guide pipe and the hollow core shaft can relatively extend and retract in the axial direction. The transmission threaded rod and the hollow core shaft can synchronously rotate, and the transmission threaded rod and the hollow core shaft can relatively extend and retract in the axial direction. The drive device is locatedin the inner pipe and fixedly installed at the upper end of the sleeving. The lower end of the sleeving is fixedly connected with a first transmission nut which is in screw-thread fit with the hollowcore shaft. The first transmission nut is fixedly connected with the inner pipe. The upper end of the sleeving is freely arranged. Shake caused by the drive device is transmitted to the first transmission nut through the sleeving and cannot be directly transmitted to a lifting platform above the inner pipe, the shaking feeling is reduced, the transmission assembly is more stable in transmission,and the lifting shake of the lifting stand column is relatively small.

Description

technical field [0001] The invention relates to the technical field of lifting columns, in particular to a transmission assembly for a lifting column and a lifting column. Background technique [0002] At present, the lifting columns of lifting mechanisms such as lifting tables and lifting chairs on the market often set the driving device on the upper end of the transmission assembly and directly fix the driving device on the bottom surface of the lifting plane to realize the connection between the lifting column and the lifting plane. The motor is prone to vibration during use, and the vibration of the motor is easily transmitted to the lifting plane, which makes the lifting plane vibrate greatly during the lifting process, which affects the user's experience. Contents of the invention [0003] The object of the present invention is to provide a transmission assembly for a lifting column and a lifting column with stable transmission. [0004] In order to achieve the abov...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66F7/12B66F7/28
CPCB66F7/12B66F7/28B66F3/10B66F3/20B66F3/16
Inventor 不公告发明人
Owner ZHEJIANG JIECHANG LINEAR MOTION TECH
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