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High-precision lifting mechanism with large bearing capacity

A lifting mechanism and bearing capacity technology, applied in the direction of lifting devices, etc., can solve the problems of high price and high cost, and achieve the effects of low manufacturing cost, simple structure and high precision

Pending Publication Date: 2018-11-06
江西中船航海仪器有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a lifting mechanism with high precision and large bearing capacity, which solves the problem that although the existing mechanism has high precision and stable movement, it needs hydraulic cylinders, gear pumps, hydraulic rods, etc., which are expensive and costly.

Method used

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Embodiment Construction

[0013] A lifting mechanism with high precision and large bearing capacity includes a base 1, such as Figure 1-Figure 3 As shown, the base 1 is vertically fixed with two optical axes 3 via two sets of upper flanges 2 and lower flanges 8, and linear bearings 7 are set on the two optical axes 3. A ball screw 5 is also fixed through the upper support assembly 4 and the lower support assembly 10, the ball screw 5 is covered with a screw nut 9, and the linear bearing 7 and the screw nut 9 are fixed through the horizontally placed On the lifting bottom plate 6, the upper end of the lifting bottom plate 6 is provided with a load 11, and the bottom end of the ball screw 5 is connected with a worm gear reducer 13 fixed on the reducer mounting base 12, and one side of the worm gear reducer 13 is connected to motor 14.

[0014] The lower support assembly 10 includes a bearing seat 16, one side of the bearing seat 16 is fixed with a bearing end cover 15, and one side of the bearing end c...

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Abstract

The invention relates to a high-precision lifting mechanism with large bearing capacity. The high-precision lifting mechanism comprises a base, two optical axes are fixedly arranged in the base through two groups of upper flanges and lower flanges, and a linear bearing is arranged on each optical axis in a sleeving mode. A ball screw is fixedly arranged in the base through an upper bearing component and a lower bearing component, and a lead screw nut is arranged on the ball screw in the sleeving mode. The linear bearings and the lead screw nut are fixed on a lifting bottom plate in a penetrating mode, and the lifting bottom plate is horizontally placed. A load is arranged at the upper end of the lifting bottom plate. The bottom end of the ball screw is connected with a worm and worm gear reducer fixed on a reducer mounting seat, and one side of the worm and worm gear reducer is connected with a motor. As a precise spiral ball screw pair is arranged between the ball screw and the lead screw nut, the mechanism has stable motion, high precision, low friction coefficient and high transmission efficiency. Moreover, under the condition that the output torque of the motor is small, the mechanism can bear great axial force, namely bearing the large load.

Description

technical field [0001] The invention relates to a lifting mechanism with high precision and large bearing capacity. Background technique [0002] At present, the existing lifting mechanism is mainly realized by trapezoidal screw and nut, guide shafts and bushings on both sides. The motor drives the trapezoidal screw to rotate, and the trapezoidal screw drives the nut and load to lift. Due to the high precision required, on the one hand, it is necessary to eliminate the trapezoidal screw. On the other hand, the fit tolerance between the guide shaft and the bushing and the shape and position tolerance control of the two guide shafts are relatively strict, which makes it difficult to manufacture these parts, the processing cost is high, and the ability requirements of the assembly personnel are relatively high. High, cumbersome assembly, it is difficult to achieve the required accuracy, and the transmission efficiency of the sliding screw pair is low. Or realize it in a hydrau...

Claims

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Application Information

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IPC IPC(8): B66F3/44
CPCB66F3/44
Inventor 王能慧栾钰琨王刚郭迪明
Owner 江西中船航海仪器有限公司
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