Oil level protection sensor

Abstract

The utility model relates to an oil level protection sensor which comprises an upper cover, a lower cover and a displacement sensor, one end of the upper cover is connected with a supporting plate, the other end of the upper cover is provided with a supporting ring, one end of the lower cover is connected with a gland, the other end of the lower cover is provided with a supporting ring, the upper cover, the supporting plate, the gland and the lower cover are fixed through hexagon bolts, and the displacement sensor is arranged between the gland and the lower cover. Along with fluctuation of the oil level of hydraulic oil in the sensor, tiny and measurable changes of the relative position between the lower cover and the gland are captured by the displacement sensor and are converted into changes of resistance signals, and then the resistance signals are transmitted to the electronic suspension heavy oil level monitor for signal processing, so that real-time monitoring of the oil level is ensured, and the monitoring accuracy is improved. An operator can master the oil level condition of the sensor at any time; the time difference from oil level reduction to finding of the oil starvation state is greatly shortened, and a precious precedent is provided for supplementing hydraulic oil in time and preventing the sensor from being damaged due to oil starvation.

Description

Technical Field

[0001] The utility model relates to the technical field of sensors, in particular to an oil level protection sensor. Background Art

[0002] Deadline anchors are essential for drilling and workover operations on various drilling and workover rigs in oil and mineral exploration, and deadline anchor sensors are even more crucial. Their stability and reliability are directly related to operational safety and efficiency. However, commonly used deadline anchor sensors often suffer from a potentially significant and often overlooked drawback: they may not detect oil starvation in a timely manner, posing a threat to the sensor's long-term stability.

[0003] Deadline anchor sensors contain multiple mechanical components and a hydraulic system, making their normal operation highly dependent on the internal hydraulic oil level. However, in actual use, due to harsh operating environments, improper maintenance, or inadequate monitoring, the hydraulic oil within the sensor may gradually deplete or leak, resulting in insufficient oil pressure. When the sensor is depleted of oil, its internal cavity becomes completely sealed, resulting in inaccurate sensor output or no pressure output. Furthermore, since depletion of oil is often difficult to directly observe or sense, it is difficult to detect and take timely measures to replenish it. Summary of the Invention

[0004] The utility model proposes an oil level protection sensor. As the hydraulic oil level inside the sensor fluctuates, the relative position between the lower cover and the pressure cover undergoes subtle but measurable changes, which are captured by the displacement sensor and converted into changes in resistance signals. The resistance signals are then transmitted to the electronic suspended weight oil level monitor for signal processing, ensuring real-time monitoring of the oil level and enabling operators to grasp the oil level status of the sensor at any time. The time difference from when the oil level drops to when an oil shortage is discovered is greatly shortened, providing a valuable opportunity for timely replenishment of hydraulic oil and preventing damage to the sensor due to oil shortage.

[0005] In order to solve the problems in the above background technology, the present invention is implemented through the following technical solutions:

[0006] An oil level protection sensor includes an upper cover, a lower cover and a displacement sensor. One end of the upper cover is connected to a support plate, and the other end of the upper cover is provided with a support ring. One end of the lower cover is connected to a pressure cover, and the other end of the lower cover is provided with a support ring. The upper cover, support plate, pressure cover and lower cover are fixed by hexagonal bolts, and the displacement sensor is arranged between the pressure cover and the lower cover.

[0007] The lower cover is provided with a displacement sensor bracket, the displacement sensor bracket is provided with the displacement sensor, and the displacement sensor is fixedly connected to the displacement sensor bracket by bolts.

[0008] The hexagonal bolt sleeve is provided with a bolt sleeve.

[0009] The upper cover is also provided with a three-way joint, which is fixedly connected to the upper cover by a hexagon socket screw, and the three-way joint is connected to the high-pressure rubber tube provided in the upper cover, the lower end of the three-way joint is connected to the self-sealing female joint, the upper end of the three-way joint is connected to the straight joint, the straight joint is connected to the quick-release male joint, and the quick-release male joint is connected to the right-angle joint. The connection between the three-way joint and the self-sealing female joint, the connection between the three-way joint and the straight joint, the connection between the straight joint and the quick-release male joint, and the connection between the quick-release male joint and the right-angle joint are all provided with O-rings; the right-angle joint is wrapped with a gasket.

[0010] A diaphragm is provided between the supporting plate and the gland, the diaphragm is limited by a pressure ring, and the diaphragm is fixedly connected to the supporting plate by a locking nut.

[0011] The lower cover is also provided with an aviation socket, which is connected to the electronic suspended weight oil level monitor through a wiring harness.

[0012] Compared with the prior art, the present invention has the following beneficial technical effects:

[0013] As the hydraulic oil level inside the sensor fluctuates, the relative position between the lower cover and the pressure cover undergoes subtle but measurable changes, which are captured by the displacement sensor and converted into changes in the resistance signal. The resistance signal is then transmitted to the electronic suspended load oil level monitor for signal processing, ensuring real-time monitoring of the oil level and allowing operators to grasp the oil level status of the sensor at any time. This greatly shortens the time difference from when the oil level drops to when the oil shortage is discovered, providing a valuable opportunity to replenish the hydraulic oil in a timely manner and prevent damage to the sensor due to oil shortage. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the present utility model.

[0015] Reference numerals

[0016] 1. Self-sealing female connector; 2. Hexagon socket screw; 3. Tee connector; 4. O-ring; 5. Straight connector; 6. Quick-release male connector; 7. Right-angle connector; 8. High-pressure rubber hose; 9. Washer; 10. Upper cover; 11. Support plate; 12. Bolt sleeve; 13. Diaphragm; 14. Pressure ring; 15. Pressure cover; 16. Hexagon bolt; 17. Lower cover; 18. Support ring; 19. Lock nut; 20. Aviation socket; 21. Displacement sensor; 22. Displacement sensor bracket; 23. Bolt. DETAILED DESCRIPTION

[0017] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0018] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" and the like are used to indicate positions or locations based on those shown in the accompanying drawings. These terms are intended solely to facilitate the description of this utility model and to simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used solely for descriptive purposes and should not be construed as indicating or implying relative importance.

[0019] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0020] like Figure 1 As shown, an oil level protection sensor includes an upper cover 10, a lower cover 17 and a displacement sensor 21. One end of the upper cover 10 is connected to the support plate 11, and the other end of the upper cover 10 is provided with a support ring 18. One end of the lower cover 17 is connected to the pressure cover 15, and the other end of the lower cover 17 is provided with a support ring 18. The upper cover 10, the support plate 11, the pressure cover 15 and the lower cover 17 are fixed by hexagonal bolts 16. The displacement sensor 21 is arranged between the pressure cover 15 and the lower cover 17.

[0021] As the hydraulic oil level inside the sensor fluctuates, the relative position between the lower cover 17 and the pressure cover 15 undergoes subtle but measurable changes, which are captured by the displacement sensor 21 and converted into changes in the resistance signal. The resistance signal is then transmitted to the electronic suspended weight oil level monitor for signal processing, ensuring real-time monitoring of the oil level.

[0022] The lower cover 17 is provided with a displacement sensor bracket 22 , and the displacement sensor bracket 22 is provided with a displacement sensor 21 . The displacement sensor 21 is fixedly connected to the displacement sensor bracket 22 by bolts 23 .

[0023] The hexagonal bolts 16 are provided with bolt sleeves 12 .

[0024] The bolt sleeve 12 is provided to avoid wear between the hexagonal bolt 16 and the upper cover 10 , the lower cover 17 , the supporting plate 11 and the pressure cover 15 .

[0025] The upper cover 10 is also provided with a tee joint 3, which is fixedly connected to the upper cover 10 by a hexagon socket screw 2. The tee joint 3 is connected to the high-pressure rubber tube 8 provided in the upper cover 10, and the lower end of the tee joint 3 is connected to the self-sealing female joint 1, and the upper end of the tee joint 3 is connected to the straight joint 5, the straight joint 5 is connected to the quick-release male joint 6, and the quick-release male joint 6 is connected to the right-angle joint 7. The connection between the tee joint 3 and the self-sealing female joint 1, the connection between the tee joint 3 and the straight joint 5, the connection between the straight joint 5 and the quick-release male joint 6, and the connection between the quick-release male joint 6 and the right-angle joint 7 are all provided with O-rings 4; the right-angle joint 7 is wrapped with a gasket 9.

[0026] The connection between the tee joint 3 and the self-sealing female joint 1, the connection between the tee joint 3 and the straight joint 5, the connection between the straight joint 5 and the quick-release male joint 6, and the connection between the quick-release male joint 6 and the right-angle joint 7 are all provided with O-rings 4 to ensure their connection state and ensure sealing.

[0027] A diaphragm 13 is provided between the supporting plate 11 and the pressure cover 15 . The diaphragm 13 is limited by a pressure ring 14 . The diaphragm 13 is fixedly connected to the supporting plate 11 by a locking nut 19 .

[0028] The lower cover 17 is further provided with an aviation socket 20 , which is connected to an electronic suspended weight oil level monitor via a wiring harness.

Claims

1. An oil level protection sensor, characterized in that: The invention comprises an upper cover (10), a lower cover (17) and a displacement sensor (21), wherein one end of the upper cover (10) is connected to a supporting plate (11), and the other end of the upper cover (10) is provided with a support ring (18), one end of the lower cover (17) is connected to a pressure cover (15), and the other end of the lower cover (17) is provided with a support ring (18), the upper cover (10), the supporting plate (11), the pressure cover (15) and the lower cover (17) are fixed by hexagonal bolts (16), and the displacement sensor (21) is provided between the pressure cover (15) and the lower cover (17).

2. The oil level protection sensor according to claim 1, characterized in that: The lower cover (17) is provided with a displacement sensor bracket (22), the displacement sensor bracket (22) is provided with the displacement sensor (21), and the displacement sensor (21) is fixedly connected to the displacement sensor bracket (22) via bolts (23).

3. The oil level protection sensor according to claim 1, characterized in that: The hexagonal bolt (16) is sleeved with a bolt sleeve (12).

4. The oil level protection sensor according to claim 1, characterized in that: The upper cover (10) is further provided with a three-way joint (3), the three-way joint (3) is fixedly connected to the upper cover (10) by a hexagon socket screw (2), the three-way joint (3) is connected to a high-pressure rubber tube (8) provided in the upper cover (10), the lower end of the three-way joint (3) is connected to the self-sealing female joint (1), the upper end of the three-way joint (3) is connected to the straight joint (5), the straight joint (5) is connected to the quick-release male joint (6), the quick-release male joint (6) is connected to the right-angle joint (7), the connection between the three-way joint (3) and the self-sealing female joint (1), the connection between the three-way joint (3) and the straight joint (5), the connection between the straight joint (5) and the quick-release male joint (6), and the connection between the quick-release male joint (6) and the right-angle joint (7) are all provided with an O-ring (4); the right-angle joint (7) is wrapped with a gasket (9).

5. The oil level protection sensor according to claim 1, characterized in that: A diaphragm (13) is provided between the support plate (11) and the pressure cover (15), the diaphragm (13) is limited by a pressure ring (14), and the diaphragm (13) is fixedly connected to the support plate (11) by a locking nut (19).

6. The oil level protection sensor according to claim 2, characterized in that: The lower cover (17) is further provided with an aviation socket (20), and the aviation socket (20) is connected to an electronic suspended weight oil level monitor via a wiring harness.

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