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An electric telescopic rod based on rope traction

A technology of electric telescopic rods and ropes, which is applied in the direction of connection of electric components, transmission devices, rods, etc., and can solve the problem that electric telescopic rods cannot meet the requirements of rigidity, large-stroke expansion and positioning accuracy, large structural size and low transmission accuracy at the same time And other issues

Active Publication Date: 2021-03-23
XIDIAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Common electric telescopic rods are divided into electric telescopic rods based on screw drive and electric telescopic rods based on friction wheel drive according to the driving mode. Among them, the electric telescopic rod based on screw drive has the advantages of compact structure and accurate positioning, but the telescopic stroke Limited by the length of the lead screw, the telescopic stroke is small and cannot meet the requirements of a large stroke. At the same time, the linear speed of the rise and fall of the lead screw driving the telescopic rod is relatively slow
The electric telescopic rod based on friction wheel transmission has the advantages of large telescopic stroke and fast lifting speed, but the transmission accuracy is low
For example, the application publication number is CN109296604A, and the patent application titled "Large-Stroke Electric Telescopic Rod" discloses a large-stroke electric telescopic rod based on friction wheel transmission. The invention uses a motor to provide power and drives a flexible shaft through a friction wheel mechanism. For linear motion, the flexible shaft drives the telescopic rod to do linear telescopic motion, which realizes large-stroke telescopic expansion and rapid lifting, but its defect is that the efficiency of the friction wheel mechanism is low. At the same time, in order to ensure sufficient friction, a complex structure The compression device leads to a large structural size, and when the flexible shaft is driven by the friction wheel to achieve telescopic movement, the flexible shaft slips, resulting in low transmission accuracy and inaccurate positioning of the friction wheel mechanism
[0004] To sum up, none of the existing electric telescopic rods can meet the requirements of rigidity, large-stroke expansion and positioning accuracy of the tracking mechanism of the large-scale reflection and collection system at the same time.

Method used

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  • An electric telescopic rod based on rope traction
  • An electric telescopic rod based on rope traction
  • An electric telescopic rod based on rope traction

Examples

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Embodiment 1

[0060] Embodiment 1, this embodiment is a two-stage telescopic structure.

[0061] refer to figure 1 , an electric telescopic rod based on rope traction, comprising a base 1, a fixed rod 2, a driving assembly 3 and a first sliding rod assembly 4;

[0062] The base 1 has a structure such as figure 2 As shown, a cavity structure with an open top and a closed bottom is adopted, and the cavity of the base 1 is used to protect the motor 345; the shape and size of the top opening of the base 1 are the same as the shape and size of the fixed rod 2, and the base is fixed by a set screw. 1 is fixed on the bottom of the fixed rod 2; the bottom of the base 1 is provided with a hinge hole, and the hinge hole can be set as a rotating pair;

[0063] Described fixed rod 2, its structure is as image 3 As shown, steel or engineering plastics or carbon fiber materials are used. In order to reduce the quality of the electric telescopic rod, the present embodiment uses carbon fiber materials...

Embodiment 2

[0072] Embodiment 2, this embodiment is a three-stage telescopic structure, which has the same structure as the base 1, fixed rod 2, and drive assembly 3 in the embodiment 1, and only the first sliding rod 4 and the second sliding rod 5 will be described in detail.

[0073] The first sliding rod assembly 4 has a structure such as Figure 12 As shown, it includes a first sliding rod 41, a first limiting ring 42 and a limiting block 43; the first sliding rod 41 adopts a tubular structure with a circular cross section, and one end of the first limiting ring 42 is installed to nest On the fixed rod 2, the size of the circumscribed circle of the fixed rod 2 is the same as the size of the inner circle of the first sliding rod 41, which ensures that the telescopic rod has sufficient rigidity; the structure of the first stop ring 42 is as follows Figure 13 As shown in (a), the inner cavity of the first stop ring 42 includes a circular upper inner cavity connected with one end of the ...

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PUM

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Abstract

The invention provides an electric telescopic rod based on rope traction, which comprises a base, a fixed rod, a driving assembly and a first-stage or second-stage sliding rod. The base is fixed at the bottom end of the fixed rod; the driving assembly is installed in an inner cavity of the fixed rod. The first-stage sliding rod is nested on the fixed rod, the second-stage sliding rod is nested onthe first-stage sliding rod, a motor in the driving assembly drives a synchronous belt, the synchronous belt and two sets of pulleys drive a rope at the same time, the rope drives the first-stage sliding rod to do linear motion along the fixed rod, and the first-stage sliding rod drives the second-stage sliding rod to do linear motion through the rope. The electric telescopic rod has the advantages of being large in telescopic stroke, accurate and rapid in positioning, high in stability, high in rigidity and compact in structure, and can be used for target tracking of a large reflection and collection system.

Description

technical field [0001] The invention belongs to the technical field of mechanical drive and relates to an electric telescopic rod, in particular to an electric telescopic rod based on rope traction, which can be used for target tracking of a large-scale reflection and collection system. Background technique [0002] Large-scale reflection and collection systems have been widely used in electronic information technology fields such as communication, navigation, detection, tracking, and measurement and control, and have also been expanded and applied in the field of solar energy application technology. When the large-scale reflection and collection system tracks the target, the tracking mechanism is required to adjust the pose of the large-scale reflection and collection system. The tracking mechanism is divided into series type and parallel type. Among them, the serial tracking mechanism has complex structure, heavy weight, high processing cost, low installation efficiency an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16B7/10F16H37/02H02K7/06
CPCF16B7/10F16H37/02H02K7/06
Inventor 郑飞牛魁张锋斌郑涛芮喜颜立德
Owner XIDIAN UNIV