Displacement cylinder with sensor

Abstract

The utility model provides a displacement cylinder with a sensor, and relates to the technical field of pipeline operation equipment, the displacement cylinder comprises a displacement cylinder and a magnetic ring type displacement sensor, the magnetic ring type displacement sensor is arranged in the displacement cylinder, and the two ends of the displacement cylinder are mounted on the inner side of a catwalk lifting arm through shaft pins and mounting plates. The displacement cylinder has the advantages of being simple in structure, rapid to install, safe, reliable and the like, is suitable for the catwalk, can monitor and feed back the accurate position of the piston rod in real time through the built-in magnetic ring type displacement sensor, determines the position of a lifting arm when the catwalk is lifted or dropped through the stroke of the piston rod of the displacement cylinder, and ensures that each action is accurate.

Description

Technical Field

[0001] The present application relates to the technical field of pipeline operation equipment, and specifically, to a displacement cylinder with a sensor. Background Art

[0002] In the drilling and workover operations in oil fields, a power cathead is used to achieve the mechanized reciprocating transportation of drill pipes between the ground rack and the drill floor. However, in the current process of catwalk pipeline transportation, the existing sensing devices have problems such as inconvenient installation, complex structure, unstable performance, and inaccurate signal feedback. Therefore, the present application provides a displacement cylinder with a sensor to solve the above problems. Summary of the Utility Model

[0003] The purpose of the present application is to provide a displacement cylinder with a sensor to solve one or more of the problems raised in the above background art.

[0004] To achieve the above purpose, one of the purposes of the present application is that a displacement cylinder with a sensor includes a displacement cylinder and a magnetic-ring displacement sensor. The magnetic-ring displacement sensor is arranged inside the displacement cylinder, and both ends of the displacement cylinder are installed on the inner side of the catwalk lifting arm through connectors.

[0005] As a preferable implementation, the displacement cylinder includes a piston rod, end caps, a cylinder sleeve, and a support. The piston rod is arranged inside the cylinder sleeve. One end of the cylinder sleeve is fixedly connected to the support, and the other end of the cylinder sleeve is fixedly connected to the end cap.

[0006] As a preferable implementation, the connector includes a shaft pin and a support. The left end of the displacement cylinder is hinged to the first mounting plate through the shaft pin, and the right end of the displacement cylinder is hinged to the second mounting plate through the support. Both the first mounting plate and the second mounting plate are fixedly connected to the inner side of the catwalk lifting arm.

[0007] As a preferable implementation, the displacement cylinder further includes a fork head. One end of the piston rod extending out of the end cap is fixedly connected to the fork head.

[0008] As a preferable implementation, the shaft pin passes through the fork head and both ends are hinged to the mounting plate.

[0009] As a preferable implementation, a through hole for the piston rod to pass through is provided at the other end of the cylinder sleeve. One end of the piston rod connected to the magnetic-ring displacement sensor is provided with a thread, and the piston rod is threadedly connected to the magnetic-ring displacement sensor.

[0010] Compared with the prior art, the present application has the following beneficial effects:

[0011] The displacement cylinder of the present application has the characteristics of simple structure, quick installation, safety and reliability, etc., and is applicable to the catwalk. By means of the built-in magnetic-ring displacement sensor, it can monitor and feedback the accurate position of the piston rod in real time, and determine the position of the lifting arm of the catwalk during lifting or lowering through the stroke of the piston rod of the displacement cylinder, ensuring the accuracy of each action. Description of the Drawings

[0012] Figure 1 It is a schematic structural diagram of the installation and use of a displacement cylinder with a sensor according to the present application;

[0013] Figure 2 It is a schematic structural diagram of a displacement cylinder with a sensor according to the present application. Detailed Embodiment

[0014] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0015] As Figure 1 shown, a displacement cylinder with a sensor includes a displacement cylinder 2 and a magnetic-ring displacement sensor 4. The magnetic-ring displacement sensor 4 is arranged inside the displacement cylinder 2, and both ends of the displacement cylinder 2 are installed on the inner side of the catwalk lifting arm 5 through connecting parts. The displacement cylinder 2 includes a fork head 2.1, a piston rod 2.3, an end cover 2.2, a cylinder sleeve 2.4, and a support 2.5. One end of the piston rod 2.3 extending out of the end cover 2.2 is fixedly connected to the fork head. The piston rod 2.3 is arranged inside the cylinder sleeve 2.4. One end of the cylinder sleeve is fixedly connected to the support 2.5, and the other end of the cylinder sleeve is fixedly connected to the end cover 2.2.

[0016] The connecting parts include a shaft pin 1 and a support 2.5. The left end of the displacement cylinder 2 is hinged to the first mounting plate 3 through the shaft pin 1, and the right end of the displacement cylinder 2 is hinged to the second mounting plate 6 through the support 2.5. Both the first mounting plate 3 and the second mounting plate 6 are fixedly connected to the inner side of the catwalk lifting arm.

[0017] The shaft pin 1 passes through the fork head 2.1 and both ends are hinged to the mounting plate 3. The mounting plate 3 is fixedly connected to the inner side of the catwalk lifting arm through bolts. Thus, both ends of the shaft pin 1 can rotate inside the mounting plate 3, ensuring that it rotates along a similar trajectory as the lifting cylinder during lifting or lowering.

[0018] The other end of the cylinder liner 2.4 is provided with a through hole through which the piston rod 2.3 can pass. One end of the piston rod 2.3 connected to the magnetic ring displacement sensor 4 is provided with a thread, and the piston rod 2.3 is threadedly connected to the magnetic ring displacement sensor 4. Thus, the accurate position of the piston rod can be monitored and fed back in real time, and the position of the lifting arm of the catwalk during lifting or lowering can be determined by the stroke of the piston rod of the displacement cylinder, ensuring the accuracy of each action.

[0019] In summary, the displacement cylinder of the present application has the characteristics of simple structure, quick installation, safety and reliability, etc. It is a displacement cylinder used when a catwalk or the like requires signal feedback of the displacement stroke for position determination. The displacement cylinder of the present application can monitor and feed back the accurate position of the piston rod in real time through the built-in magnetic ring displacement sensor, determine the position of the lifting arm of the catwalk during lifting or lowering by the stroke of the piston rod of the displacement cylinder, and calculate the current lifting height of the lifting arm at the same time, ensuring the accuracy of each action.

[0020] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present application and are not used to limit the present application. Without departing from the spirit and scope of the present application, the present application will have various changes and improvements, and these changes and improvements all fall within the scope of the present application claimed. The scope of protection claimed by the present application is defined by the appended claims and their equivalents.

Claims

1. A displacement cylinder with a sensor, characterized in that, It includes a displacement cylinder (2) and a magnetic-ring displacement sensor (4). The magnetic-ring displacement sensor (4) is arranged inside the displacement cylinder (2). Both ends of the displacement cylinder (2) are installed on the inner side of the catwalk lifting arm (5) through connecting pieces.

2. A displacement cylinder with a sensor as described in claim 1, characterized in that: The displacement cylinder (2) includes a piston rod (2.3), end caps (2.2), a cylinder sleeve (2.4), and a support (2.5). The piston rod (2.3) is arranged inside the cylinder sleeve (2.4). One end of the cylinder sleeve is fixedly connected to the support (2.5), and the other end of the cylinder sleeve is fixedly connected to the end cap (2.2).

3. A displacement cylinder with a sensor as described in claim 2, characterized in that: The connecting piece includes a shaft pin (1) and a support (2.5). The left end of the displacement cylinder (2) is hinged to the first mounting plate (3) through the shaft pin (1), and the right end of the displacement cylinder (2) is hinged to the second mounting plate (6) through the support (2.5). Both the first mounting plate (3) and the second mounting plate (6) are fixedly connected to the inner side of the catwalk lifting arm.

4. A displacement cylinder with a sensor as described in claim 3, characterized in that: The displacement cylinder (2) further includes a fork head (2.1). One end of the piston rod (2.3) extending out of the end cap (2.2) is fixedly connected to the fork head.

5. A displacement cylinder with a sensor as described in claim 4, characterized in that: The shaft pin (1) penetrates through the fork head (2.1) and its two ends are hinged to the first mounting plate (3).

6. A displacement cylinder with a sensor as described in claim 5, characterized in that: The other end of the cylinder sleeve (2.4) is provided with a through hole through which the piston rod (2.3) can pass. One end of the piston rod (2.3) connected to the magnetic-ring displacement sensor (4) is provided with a thread, and the piston rod (2.3) is threadedly connected to the magnetic-ring displacement sensor (4).

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