A hydraulic cylinder sensor magnetic ring detection device

Abstract

The utility model discloses a kind of hydraulic cylinder sensor magnetic ring detection devices, including hydraulic cylinder, further include detection end and the displacement sensor electrically connected with the detection end, the detection end includes at least two different displacement sensors, the displacement sensor is matched with different magnetic ring, the piston rod movement in the hydraulic cylinder drives magnetic ring to move along the displacement sensor outer tube, the displacement sensor passes through the displacement sensor and transmits the position of the piston rod in the hydraulic cylinder to the detection end, the detection end is connected between the displacement sensor in detachable mode, detachable mode includes connector / socket connection form, the connector / socket connection is locked by thread, plug-in mechanical structure.

Description

Technical Field

[0001] This utility model belongs to the field of detection technology, specifically relating to a magnetic ring detection device for a hydraulic cylinder sensor. Background Technology

[0002] With the widespread application of hydraulic technology in the metallurgical industry, the use of corresponding field actuators such as hydraulic cylinders is increasing. These actuators are simple in structure and reliable in operation. In metallurgical rolling mills, with the increasing level of automation, displacement sensors are being used more and more in the field. However, position detection anomalies caused by mismatch between the sensor and the magnetic ring inside the hydraulic cylinder can account for up to 20% of these anomalies.

[0003] In view of the above factors, this utility model provides a hydraulic cylinder sensor magnetic ring detection device to detect the built-in sensor and magnetic ring of the hydraulic cylinder on site, and to judge its quality by intuitive analysis of the displacement curve. Utility Model Content

[0004] The purpose of this invention is to provide a magnetic ring detection device for a hydraulic cylinder sensor to solve the problems mentioned in the background art.

[0005] The purpose of this utility model is achieved through the following technical solution: a hydraulic cylinder sensor magnetic ring detection device, including a hydraulic cylinder, and further including a detection end and a displacement sensor electrically connected to the detection end, wherein the detection end includes at least two different sets of the displacement sensors;

[0006] The displacement sensor is matched with different magnetic rings. The movement of the piston rod in the hydraulic cylinder drives the magnetic ring to move along the outer tube of the displacement sensor. The displacement sensor transmits the position of the piston rod in the hydraulic cylinder to the detection end.

[0007] Furthermore, the detection end and the displacement sensor are detachably connected, and the detachable connection includes a connector / socket connection, which is locked by a threaded or plug-in mechanical structure.

[0008] Furthermore, the detection end has a rectangular structure and a built-in CPU processor, which is electrically connected to the display screen installed on the detection end.

[0009] Furthermore, the CPU processor is an S7-300 CPU, and the CPU processor is electrically connected to the displacement sensor.

[0010] Furthermore, the displacement sensor includes a DP interface displacement sensor and a PN interface displacement sensor.

[0011] Furthermore, the CPU processor is also electrically connected to an analog input signal unit, which is electrically connected to an analog interface displacement sensor.

[0012] Furthermore, the analog input signal unit is an S7-1500 series analog input module.

[0013] Furthermore, the detection terminal also includes a 24V lithium battery power supply, which is electrically connected to the CPU processor and the display screen.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] The detection end and the displacement sensor of this utility model are connected in a detachable manner. The detachable manner includes a connector / socket connection, and the connector / socket connection is locked by a threaded or plug-in mechanical structure.

[0016] This invention detects the built-in sensors and magnetic rings of the hydraulic cylinders on site, and judges their quality by intuitive analysis of the displacement curves. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the connector / socket connection between the detection end and the displacement sensor of this utility model;

[0019] Figure 3 This is a schematic diagram of the internal connections of this utility model;

[0020] Figure 4 This is a schematic diagram of the displacement sensor of this utility model. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Specific Implementation Example 1:

[0025] like Figure 1-4 As shown, a hydraulic cylinder sensor magnetic ring detection device includes a hydraulic cylinder 1, a detection end 2, and a displacement sensor 3 electrically connected to the detection end 2. The detection end 2 includes at least two different sets of the displacement sensors 3.

[0026] The displacement sensor 3 is matched with different magnetic rings 4. The movement of the piston rod in the hydraulic cylinder 1 drives the magnetic ring to move along the outer tube of the displacement sensor 3. The displacement sensor 3 transmits the position of the piston rod in the hydraulic cylinder 1 to the detection end 2.

[0027] The detection end 2 and the displacement sensor 3 are detachably connected. The detachable connection includes a connector / socket connection. The connector / socket connection is locked by a threaded or plug-in mechanical structure. The detection end 2 uses a circular connector, such as an M5 / M8 / M12 type connector.

[0028] The detection end 2 has a rectangular structure and a built-in CPU processor 5. The CPU processor 5 is electrically connected to the display screen 6 installed on the detection end 2.

[0029] The CPU processor 5 uses an S7-300 CPU, and the CPU processor 5 is electrically connected to the displacement sensor 2;

[0030] The displacement sensor 3 includes an analog interface displacement sensor 33, and the CPU processor 5 is also electrically connected to an analog input signal unit 7, which is electrically connected to the analog interface displacement sensor 33.

[0031] The analog input signal unit is the 7S7-1500 series analog input module.

[0032] The detection terminal 2 also includes a 24V lithium battery power supply 7, which is electrically connected to the CPU processor 5 and the display screen 6.

[0033] Working principle: After the hydraulic cylinder 1 spare part arrives at the factory offline, it is placed in the spare parts area. The matching magnetic ring is selected for the hydraulic cylinder 1. Based on the magnetic ring, an analog interface displacement sensor is selected. The analog interface displacement sensor interface is matched with an analog input signal. The 24V lithium battery power supply is connected and the display screen is turned on. The analog input signal is fed back to the display screen. The function of the magnetic ring is analyzed by the signal curve collected on the display screen. Specific Implementation Example 2:

[0035] Unlike Specific Implementation Example 1,

[0036] The CPU processor 5 uses an S7-300 CPU and is electrically connected to the displacement sensor 2. The displacement sensor 3 includes a DP interface displacement sensor 31, which is electrically connected to the CPU processor 5 and is used to detect the magnetic ring. Specific Implementation Example 3:

[0038] Unlike Specific Implementation Example 1,

[0039] The CPU processor 5 uses an S7-300 CPU and is electrically connected to the displacement sensor 2. The displacement sensor 3 includes a PN interface displacement sensor 32, which is electrically connected to the CPU processor 5 and is used to detect the magnetic ring.

[0040] In the above embodiments, since different types of hydraulic cylinders have multiple magnetic rings, different types of displacement sensors are needed to distinguish and detect different magnetic rings.

[0041] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0042] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A hydraulic cylinder sensor magnetic ring detection device, comprising a hydraulic cylinder (1), characterized in that: It also includes a detection end (2) and a displacement sensor (3) electrically connected to the detection end (2), wherein the detection end (2) includes at least two different sets of the displacement sensors (3); The displacement sensor (3) is matched with different magnetic rings (4). The piston rod in the hydraulic cylinder (1) moves to drive the magnetic ring to move along the outer tube of the displacement sensor (3). The displacement sensor (3) transmits the position of the piston rod in the hydraulic cylinder (1) to the detection end (2) through the displacement sensor (3).

2. The hydraulic cylinder sensor magnetic ring detection device according to claim 1, characterized in that: The detection end (2) and the displacement sensor (3) are detachably connected. The detachable connection includes a connector / socket connection, which is locked by a threaded or plug-in mechanical structure.

3. The hydraulic cylinder sensor magnetic ring detection device according to claim 2, characterized in that: The detection end (2) has a rectangular structure and a built-in CPU processor (5). The CPU processor (5) is electrically connected to the display screen (6) set on the detection end (2).

4. The hydraulic cylinder sensor magnetic ring detection device according to claim 3, characterized in that: The CPU processor (5) is an S7-300 CPU, and the CPU processor (5) is electrically connected to the displacement sensor (3).

5. The hydraulic cylinder sensor magnetic ring detection device according to claim 4, characterized in that: The displacement sensor (3) includes a DP interface displacement sensor (31) and a PN interface displacement sensor (32).

6. The hydraulic cylinder sensor magnetic ring detection device according to claim 4, characterized in that: The displacement sensor (3) includes an analog interface displacement sensor (33), and the CPU processor (5) is also electrically connected to an analog input signal unit (7), which is electrically connected to the analog interface displacement sensor (33).

7. The hydraulic cylinder sensor magnetic ring detection device according to claim 6, characterized in that: The analog input signal unit (7) is an S7-1500 series analog input module.

8. The hydraulic cylinder sensor magnetic ring detection device according to claim 7, characterized in that: The detection terminal (2) also includes a 24V lithium battery power supply (8), which is electrically connected to the CPU processor (5) and the display screen (6).

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