大众彩票苹果手机app⎛⎝NsUCz⎠⎞ Rotating limit device of segment installation machine with tension rope displacement sensor - industry trends - Shenzhen easie Electric Co., Ltd

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Installation of pipe segment with displacement sensor of pulling rope

Release date: June 25, 2019 Hits: 120

The rotation angle of shield segment installation machine is required to be more than + / - 200 °. Since the oil pipe and cable follow its rotation, it is necessary to limit the rotation movement to avoid breaking the oil pipe and cable. Now two kinds of limit methods are widely used. One is to install the angle encoder, and the drive motor needs to be driven by the coupling, so it is difficult to select the type, and the price of the encoder itself is relatively high; the other is to use two proximity switches to control through programming, because the rotation angle is greater than 180. In addition, when the detection device passes through the proximity switch at high speed, there is a problem of signal lag. It is easy to pull off the oil pipe and cable, which not only affects the normal use, but also is very inconvenient to maintain and repair.

Contents of utility model

In view of the deficiency of the prior art, the utility model provides a belt pulling rope Displacement sensor The rotation limit device of segment installation machine converts the rotary motion of segment installation machine into pulling rope Displacement sensor In order to limit the rotation angle of the segment installation machine, the detection function of the cable displacement sensor is used. It has the advantages of simple structure, easy implementation and good effect.

The utility model has the advantages of positive effects:

1. The rotation limit device of the segment installation machine is designed according to the working conditions by using the characteristics of the rope displacement sensor, and is applied to the shield segment installation machine system, which converts the rotary motion of the segment installation machine into the linear movement of the rope displacement sensor, so as to detect and limit the rotation angle of the segment installation machine. The utility model can meet the need of rotation limit of segment installation machine and realize better system protection.

2. The rotary limiting device of the segment installation machine of the utility model has the advantages of simple structure, low cost, safe and reliable use. Because it has no directionality and is not limited by the rotation direction of segment installation machine, it is easy to install and use; because of the use of program controller, the buffer program can be designed on demand to reduce the impact on the system, which can be widely used in shield machines and construction machinery.

Description of drawings

Fig. 1: structural composition diagram of rotation limit device of segment installation machine of the utility model;

 Installation of pipe segment with displacement sensor of pulling rope

Fig. 2: schematic diagram of the use state of the rotary limit device of the segment installation machine of the utility model.

 Installation of pipe segment with displacement sensor of pulling rope

In the figure: Mark 1 is the big gear ring of the segment installation machine, 2 is the driving pinion of the segment installation machine, 3 is the segment machine fixing frame, 4 is the reducer, 5 is the driving motor, 6 is the winding column, 7 is the pulling rope displacement sensor, 8 is the pulling wire, 9 is the fixing frame of the pulling rope displacement sensor, 10 is the program controller (PLC), and 11 is the connecting structure of the winding column and the driving pinion.

Specific implementation mode

Embodiment 1: see Fig. 1 and Fig. 2. The rotary limiting device of the segment installation machine comprises a winding column 6 matched with the driving pinion 2 of the segment installation machine, a fixing frame 9 for installing a rope displacement sensor 7, and a winding column 6 One end is provided with a connecting structural member 11 which is coaxial connected with the driving pinion 2 of the segment installation machine, the rope displacement sensor 7 is fixed on the fixed frame, the front end of the pull wire 8 of the rope displacement sensor is fixed on the winding column 6, the output signal of the pulling rope displacement sensor 7 is connected with the program controller 10, and the rotation limit device is controlled and connected with the driving mechanism of the segment installation machine through the program controller.

The rotating limiting device of the segment installation machine of the utility model, the connecting structural member 11 arranged at the 6-end of the winding column is a flange seat with screw mounting holes, and the corresponding screw holes are arranged on one side or two sides of the driving pinion of the segment installation machine. The winding column 6 and the driving pinion of the segment installation machine are connected by screws.

For the rotary limiting device of the segment installation machine, the connecting structural member 11 or screw is arranged at the 6-end of the winding column, and the corresponding screw holes are arranged on one side or two sides of the driving pinion of the segment installation machine.

When in use, the winding column 6 is installed on the 2-side of the driving pinion, and the output signal of the rope displacement sensor 7 is connected to the PLC, and the driving motor is controlled by the program to realize the limit function. The application method is as follows: firstly, calculate the rotation number of the driving pinion when the segment installation machine rotates to the maximum angle, then fix the winding column at the center of one side of the driving pinion, fix the wire rope displacement sensor in the direction perpendicular to the winding column, and the cable end of the sensor is tied to the winding column, and the diameter of the winding column depends on the maximum rotation number of the driving pinion and the pulling rope position Move the measurement range of the sensor line. When the segment installation machine rotates, the driving pinion drives the winding column to rotate synchronously. As the pull wire of the sensor is continuously wound on the winding column, the sensor signal is also changing. When PLC detects that the sensor signal reaches the set value, that is, the segment installation machine rotates to the maximum angle, the PLC controls the rotation drive to stop action. In order to make the motion stable when stopping, the rotation speed can be gradually reduced within a certain distance before the set value is reached, and the motion is stopped when the set value is reached. This buffering function can be realized by program control.


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