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Single-cylinder telescopic boom length sensing device

A telescopic boom and sensing device technology, applied in the field of length sensing, can solve problems such as frequent replacement of pull wires and rotating springs, and achieve the effects of reducing wear, increasing service life, and improving friction

Active Publication Date: 2018-07-06
HUNAN BAITE LORRY MOUNTED CRANE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the defects in the prior art, the present invention provides a single-cylinder telescopic boom length sensing device to achieve the technical effect of reducing costs and solving the problem of frequent replacement of pull wires and swivel springs

Method used

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  • Single-cylinder telescopic boom length sensing device
  • Single-cylinder telescopic boom length sensing device
  • Single-cylinder telescopic boom length sensing device

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Embodiment Construction

[0036] The technical solutions of the present invention will be described in detail below in conjunction with embodiments. The following examples are only used to illustrate the technical solutions of the present invention more clearly, and therefore are only examples, rather than limiting the protection scope of the present invention.

[0037] Such as Figure 1-5As shown, a single-cylinder telescopic boom length sensing device includes a fixed frame 1, the fixed frame 1 is installed on the arm head of the basic arm 3 through the mounting frame 2, the mounting frame 2 is detachably connected with the basic arm 3, and the fixed frame 1 and the installation frame 2 are connected with a pressing member 4, and the fixed frame 1 is connected with a roller 6 that is rollingly connected with the movable arm 5;

[0038] Fixture 1 comprises axle seat 101, and one end of axle seat 101 is connected with pressing piece 4, and the other end is provided with fixed plate 102, and roller 6 c...

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Abstract

The invention belongs to the technical field of length sensing, and provides a single-cylinder telescopic boom length sensing device. A fixing frame is mounted on a boom head of a base boom through amounting frame. A pressing part is connected between the fixing frame and the mounting frame. A rolling wheel which is rolling connection with a movable arm is connected with the fixing frame. The fixing frame comprises a shaft seat. A pressing part is connected with one end of the shaft seat. A fixing plate is arranged at the other end of the shaft seat. The rolling wheel comprises a wheel axle and a wheel body. The wheel body is in key connection with the wheel axle. One end of the wheel axle is rotationally connected to the fixing plate. The other end of the wheel axle is rotationally connected to an L-shaped plate. The L-shaped plate is provided with a fixing mechanism matched with the wheel axle. An encoder matched with the wheel axle is arranged on the fixing plate. The rolling wheelis in rolling connection with the outer wall of the movable arm, linear motion of the movable arm is converted into rotation of the rolling wheel, a rotation signal is converted into an electric signal, a length sensing valve is output, a stay wire and a rotary spring do not need to be used, the application cost is reduced, no vulnerable stay wire device is arranged, and the reliability is improved.

Description

technical field [0001] The invention relates to the technical field of length sensing, in particular to a length sensing device for a single-cylinder telescopic boom. Background technique [0002] Cranes are widely used in construction sites, cargo yards, material warehouses and other places to load and unload goods. In order to ensure the safety of its use, it is necessary to install a boom length automatic detection sensor on the crane to detect the length of the boom when the crane is working. Extended length to ensure the crane's working safety. At present, the working principle of the automatic detection sensor for the length of the crane boom in the prior art is that when the boom is extended, the pull wire of the detection sensor is driven to extend, and then the winding reel is driven to rotate, so that the rotating spring (spring, structure) in the winding reel It is the same as the clockwork spring) to tighten, and at the same time, the shaft of the winding reel d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66C13/22B66C13/16
CPCB66C13/16B66C13/22
Inventor 郑华郑昇皇甫少飞
Owner HUNAN BAITE LORRY MOUNTED CRANE CO LTD
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