买彩票哪个网正规⎛⎝tkUUA⎠⎞ Protection device of magnetostrictive displacement sensor for long stroke hydraulic cylinder

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Protection device of magnetostrictive displacement sensor for long stroke hydraulic cylinder

Release date: June 23, 2019 Hits: 185

With the development of hydraulic technology, more and more ultra long stroke hydraulic cylinders are equipped with built-in magnetostrictive displacement sensors. Usually, in order to prevent the sensor from being damaged and broken when the hydraulic cylinder acts, the sensor protection tube is installed inside the hydraulic cylinder. However, when the cylinder stroke exceeds 6 m, the sensor protection tube becomes a cantilever structure due to the cylinder reaching the maximum stroke, so the rigidity is insufficient The falling range increases, so the risk of sensor damage increases when the oil cylinder acts. Therefore, it is necessary to design a sensor protection device with good rigidity, good stability and small deformation.

Contents of utility model

In order to overcome the above shortcomings, a built-in magnetostrictive displacement sensor protecting and anti bending device for ultra long stroke hydraulic cylinder with good rigidity, good stability and small deformation is provided

The technical scheme adopted by the utility model to solve the technical problem is: a built-in displacement sensor protection anti bending device of the ultra long stroke hydraulic cylinder, the bottom of the small oil cylinder is fixed with the bottom of the oil cylinder through the internal hexagon screw, so that the sensor, sensor protection tube assembly and small cylinder cylinder connected with the bottom of the small oil cylinder are also fixed together with the bottom of the oil cylinder; The magnetic ring and copper ring are connected with the small piston rod through the hexagon screw; the cylinder piston rod head is connected with the connecting flange and small piston rod head before connecting with the piston rod of the oil cylinder

The beneficial effect of the utility model: the sensor and the protection pipe are installed inside the small oil cylinder. Because the inner diameter of the small oil cylinder piston is small, and the rigidity of the small oil cylinder cylinder is far greater than the rigidity of the original protection pipe, even when the oil cylinder has completed the stroke, the deformation of the small cylinder and the small oil cylinder cylinder is within the safe range, so that the sensor will not be damaged during the operation of the oil cylinder.

Description of drawings

Figure 1 is a sectional view of the structure of the utility model

In the figure: 1-cylinder piston rod, 2-cylinder head, 3-cylinder flange, 4-cylinder barrel, 5-cylinder piston, 6-cylinder bottom, 7-small cylinder bottom, 8-socket screw, 9-sensor, 10-sensor protection tube assembly, 11-copper ring, 12-magnetic ring, 13-small cylinder, 14-small piston rod, 15-copper guide sleeve, 16-connecting flange, 17-cylinder rod head.

Specific implementation mode

The utility model is further described in combination with the drawings and the embodiment

As shown in Fig. 1, a built-in magnetostrictive displacement sensor is used to protect the anti bending device of the ultra long stroke hydraulic cylinder. The bottom 7 of the small oil cylinder is fixed with the bottom 8 of the oil cylinder through the hexagon screw 8, so that the sensor 9, the sensor protection tube assembly 10 and the small cylinder 13 connected with the bottom 7 of the small oil cylinder are also fixed with the bottom 8 of the oil cylinder; The magnetic ring 12 and the copper ring 11 are connected with the small piston rod 14 through the hexagon socket screw; the cylinder piston rod head 17 is connected with the connecting flange 16 and the small piston rod 14 rod head before connecting with the piston rod 1 of the oil cylinder

Since the small piston rod 14 is fixed with the oil cylinder piston rod 1, when the oil cylinder is working, the oil cylinder piston rod 1 drives the small piston rod 14 and the magnetic ring 12 At this time, the copper guide sleeve 15 in the small piston rod 14 directly supports the sensor protection tube assembly 10, and the small piston rod 14 supports the small cylinder 13, so that the sensor protection tube assembly 10 and the small movable small cylinder 13 have enough rigidity, and the deformation is far less than the safety requirements of the sensor, so as to effectively protect the transmission The sensor is not damaged. At the same time, the copper guide sleeve 15 is used to greatly improve the wear resistance of the sensor protection tube assembly; the hard chromium plating on the outer circle of the small cylinder 13 also increases the wear resistance of the small cylinder 13, thus prolonging the service life of the whole protection device.

The sensor and the protection tube of the utility model are installed inside the small oil cylinder. Because the inner diameter of the piston of the small oil cylinder is small, and the rigidity of the small oil cylinder cylinder is far greater than the rigidity of the original protection pipe, even when the oil cylinder has completed the stroke, the deformation of the small cylinder and the small cylinder cylinder cylinder is within the safe range, so the sensor will not be damaged during the operation of the oil cylinder, and has good rigidity and stability Small deformation.


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Copyright: Shenzhen easie Electric Co., Ltd. record No Yue ICP Bei No. 19052563 Network security No. 44030602003587 Technical support: Xinghai Internet