Displacement sensor error detection equipment capable of simulating high-pressure state

By designing the combination of pressurization, conveying and pneumatic mechanisms, the automation and efficiency of displacement sensor detection in high-pressure states are solved, and efficient and accurate error detection of displacement sensors under high-pressure conditions is achieved.

CN120489035AInactive Publication Date: 2025-08-15CHANGZHOU IBEKI DISPLACEMENT TECH CO LTD
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Patent Information

Application Number
CN202510748427.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-06-06
Publication Date
2025-08-15
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The lack of clamping equipment in the prior art causes the displacement sensor to be displaced under a high voltage state, affecting error detection, and lack of a mechanism to automatically replace the object to be measured, resulting in cumbersome measurement process and low efficiency, which cannot meet the needs of large-scale production or high-precision measurement.

Method used

An error detection device including a pressurization mechanism, a conveying mechanism and an air pressure mechanism is designed. Through the pressurization mechanism, the displacement sensor is clamped and high pressure is applied. The transport mechanism automatically replaces the object to be measured. The air pressure mechanism simulates the high-pressure environment, and combines the visual sensor to monitor the position in real time to realize automated operation.

Benefits of technology

It improves the detection efficiency and accuracy of the displacement sensor under high voltage conditions, reduces manual operation, and can adapt to different sizes of displacement sensors and objects to be measured, ensuring the stability and accuracy of measurement.

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Abstract

The invention discloses displacement sensor error detection equipment capable of simulating a high-pressure state, and relates to the technical field of detection equipment, the error detection equipment comprises a base, a mounting rack I is mounted on the base, a pressurizing mechanism is mounted on the mounting rack I, the pressurizing mechanism comprises a displacement sensor I, and the displacement sensor I is mounted on the mounting rack II. A second displacement sensor is arranged on one side of the pressurizing mechanism, a conveying mechanism is mounted on the inner side of the first mounting frame, an air pressure mechanism is mounted on the upper side of the conveying mechanism, the pressurizing mechanism is used for clamping the first displacement sensor and applying high pressure to the first displacement sensor, and the conveying mechanism is used for automatically replacing different measured objects. According to the device, error detection is carried out on the displacement sensor by simulating the high-pressure state, the detection precision and reliability are effectively improved, the equipment can be automatically operated, manual intervention is reduced, and the detection efficiency is improved.
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Description

Technical Field

[0001] The present invention relates to the technical field of detection equipment, in particular to a displacement sensor error detection device capable of simulating a high pressure state. Background Art

[0002] With the development of high-precision displacement measurement technology, displacement sensors are increasingly used in high-pressure environments. High-pressure environments can cause errors in displacement sensors, such as mechanical deformation or thermal effects, affecting measurement accuracy. Laser measuring instruments, with their non-contact and high-precision features, are widely used for displacement measurement. However, under high-pressure conditions, sensors may be disturbed by external pressure, resulting in inaccurate measurements. Therefore, it is particularly important to develop a device that can simulate high-pressure conditions and detect displacement sensor errors. This device can simulate the effects of high-pressure environments on sensors and, combined with laser measuring instruments, accurately detect and compensate for errors, thereby improving the reliability and accuracy of displacement sensors under high-pressure conditions and ensuring the stability of precision measurements.

[0003] Prior art CN105790662B discloses a method for detecting errors in displacement sensors for high-voltage switchgear. The technical proposal discloses, "The present invention provides a method for detecting errors in displacement sensors for high-voltage switchgear, comprising the following steps: S1, a host computer sets a rotational motion curve that simulates the motion process of a high-voltage switch contact, converts the rotational motion curve into control parameters of a servo motor drive controller, and sends the control parameters to the servo motor drive controller to drive the servo motor to rotate; S2, the servo motor drive controller compares the rotational motion curve set by the host computer with the actual rotational motion curve of the servo motor, and adjusts the output of the servo motor drive controller so that the actual rotational motion curve of the servo motor is consistent with the rotational motion curve set by the host computer; S3, the host computer analyzes, calculates, and displays the rotational motion curves of the servo motor measured by the standard displacement sensor and the displacement sensor under test, and calculates the error of the standard displacement sensor. This method can quickly and easily complete the adaptability and accuracy test of the displacement sensor under test, greatly saving the time and cost of detection."

[0004] Although the prior art has disclosed a method for detecting errors in displacement sensors for high-voltage switchgear, some shortcomings still exist. Specifically, in actual use, the device lacks a corresponding clamping device, and the displacement sensor will displace under high voltage, affecting subsequent error detection. In addition, the device lacks a mechanism for automatically replacing the object being measured, resulting in a cumbersome and inefficient measurement process, which cannot meet the needs of large-scale production or high-precision measurement. Summary of the Invention

[0005] The object of the present invention is to provide a displacement sensor error detection device with a simulated high pressure state to solve the problems raised in the prior art.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a displacement sensor error detection device with a simulated high-pressure state, the error detection device comprising a base, a mounting frame 1 being mounted on the base, a pressurizing mechanism being mounted on the mounting frame 1, the pressurizing mechanism comprising a displacement sensor 1, a displacement sensor 2 being provided on one side of the pressurizing mechanism, a conveying mechanism being mounted on the inner side of the mounting frame 1, and a pneumatic mechanism being mounted on the upper side of the conveying mechanism. The base provides a stable support foundation to ensure the stability and safety of the entire error detection device, the mounting frame 1 provides a fixed position for the pressurizing mechanism and other accessories to ensure that each component is not subject to external interference during operation, the pressurizing mechanism is used to clamp the displacement sensor 1 and apply high pressure to it, the conveying mechanism is used to automatically replace different objects to be measured, thereby reducing the need for manual operation and improving work efficiency, and the pneumatic mechanism is used to apply high pressure to the object to be measured.

[0007] The mounting bracket 1 is located on the upper end surface of the base, and a through slot is defined in the upper end surface of the mounting bracket 1. The pressurizing mechanism includes a guide rail 1, two guide rails 1 located within the through slot. A slide motor 1 is mounted on one side of the guide rail 1, and a slider 1 is mounted on the guide rail 1, wherein the slider 1 is slidably connected to the guide rail 1. The guide rail 1 ensures that the slider 1 moves smoothly and precisely along the predetermined track during the pressurizing process. The slide motor 1 can adjust the speed as needed to control the movement of the slider 1.

[0008] Mounting bracket 2 is mounted on the lower side of the slider. Two air cylinders (1) are mounted opposite each other within mounting bracket 2. One side of each cylinder is provided with a push rod (1), which is mounted on a movable plate (1), which is mounted on one side with multiple sets of springs (1). A pressure plate (1) is mounted on one side of each of these sets of springs. Rubber pads (1) are positioned on top of the pressure plate (1), and a displacement sensor (1) is positioned between these rubber pads. Mounting bracket 2 provides support and stability for the pressurizing portion. Air pressure from air cylinder 1 drives push rod (1) for smooth movement. The multiple sets of springs (1) provide a cushioning effect. Pressure plate (1) evenly distributes pressure across the surface of displacement sensor (1), ensuring uniform force during pressurization. Rubber pads (1) prevent direct friction or damage between pressure plate (1) and displacement sensor (1).

[0009] Slider 1 is provided with Slider 2 on one side. Slider 2 is located on Guide Rail 1 and is slidably connected to Guide Rail 1. Displacement Sensor 2 is installed below Slider 2. Slider 2 is used to drive Displacement Sensor 2 to move. Slide Motor 1 drives Slider 1 and Slider 2 to move.

[0010] The conveying mechanism includes a mounting frame (3), located on the upper end surface of the base. Two mounting plates are mounted inside the mounting frame (3). A motor (1) is mounted on one side of the mounting plate. A rotating shaft is mounted on the output shaft of the motor (1). The rotating shaft is located between the two mounting plates, and a conveyor belt is sleeved onto the rotating shaft. Mounting frame (3) supports the entire conveying mechanism, ensuring the stable fixation of all components. Motor (1) drives the rotating shaft, which in turn drives the conveyor belt, which transports the object being measured to the movable plate (3).

[0011] The base is provided with two guide rails 2, and the bottom of the mounting frame 3 has two through slots. The guide rails 2 engage with the through slots and are slidably connected to the mounting frame 3. A slide motor 2 is mounted on one side of the mounting frame 3, located on the upper end surface of the base. The two guide rails 2 ensure that the mounting frame 3 can slide smoothly and accurately along the rails. The slide motor 2 is responsible for driving the mounting frame 3 to slide along the guide rails 2.

[0012] The cam is provided with a toothed groove on the upper end surface of the base, and the bottom surface of the fixed cylinder is provided with an electromagnet 2, and a spring 3 is provided on one side of the electromagnet 2, and a fixing block 2 is installed on one side of the spring 3, and two fixing cylinders are installed on the upper side of the fixed cylinder 2, and the two fixing cylinders are respectively located on the two inner walls of the mounting bracket 3, and the bottom surface of the fixed cylinder 1 is provided with an electromagnet 1, and the electromagnet 1 is provided with a spring 2 on one side, and a fixing block 1 is installed on one side of the spring 2, and the two sides of the spring 2 are respectively connected to the bottom surface of the fixed cylinder 1 and the fixing block 1. A movable plate 2 is provided in the groove, and two through grooves are respectively provided on two sides of the movable plate 2, and the fixing block 1 and the fixed block 2 cooperate with the through groove on the movable plate 2. The movable plate 2 has a toothed groove, and a motor 2 is installed on one side of the mounting bracket 3, and the motor 2 is located on the upper end surface of the base, and a gear is installed on the output shaft of the motor 2, and the gear is meshed with the movable plate 2, and the movable plate 3 is installed above the movable plate 2. Electromagnet 2 realizes the adsorption and release of fixed block 2 through magnetic force, and electromagnet 1 realizes the adsorption and release of fixed block 1 through magnetic force. Motor 2 is responsible for driving the gear to engage with the tooth groove of movable plate 2, pushing movable plate 2 to move, and movable plate 3 is used to drive the object to be measured to move up and down.

[0013] The pneumatic mechanism includes a glass cover, which is located on the upper end surface of a mounting frame 3. Two air cylinders 2 are mounted on either side of the glass cover, each with a push rod 2 mounted on one side of the cylinder 2, a pressure block mounted on one side of the push rod 2, multiple sets of springs 4 mounted on one side of the pressure block, a pressure plate 2 mounted on one side of the spring 4, and a rubber pad 2 mounted on one side of the pressure plate 2. An air pump is mounted on the upper end surface of the base, and an air pipe is mounted on the air pump. The other side of the air pipe is connected to the glass cover, and the glass cover is provided with an exhaust valve. The glass cover provides a closed working environment for the entire air pressure mechanism, facilitating the measurement of the measured object by displacement sensors 1 and 2. Cylinder 2 is used to push pressure plate 2 to move and clamp the measured object. Rubber pad 2 prevents direct contact between pressure plate 2 and the measured object, which could cause surface damage. The air pump delivers gas into the glass cover through the air pipe to simulate an actual high-pressure environment. The exhaust valve is used to control the release of gas.

[0014] A visual sensor 1 is mounted on the upper side of the inner wall of mounting frame 1, and a visual sensor 2 is mounted on one side of the inner wall of mounting frame 3. Both visual sensors 1 and 2 are electrically connected to a control system. Visual sensor 1 is used to monitor the real-time position of displacement sensor 1, displacement sensor 2, and the object being measured. Visual sensor 2 is used to monitor the real-time position of the object being measured during transportation.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The present invention can simulate the influence of a high-pressure environment on the displacement sensor through the cooperation of a pressurizing mechanism, a conveying mechanism and a pneumatic mechanism, thereby improving detection efficiency and accuracy. The pressurizing mechanism adopts a combined design of a cylinder and a spring to achieve smooth pressurization of the displacement sensor. At the same time, the provision of a rubber pad effectively prevents direct friction or damage between the pressure plate and the displacement sensor, thereby protecting the surface of the displacement sensor.

[0017] 2. The present invention realizes the automatic transportation and replacement of the object to be measured by driving the conveyor belt and the movable plate to rotate through the conveying mechanism, reduces the need for manual operation, and improves work efficiency. At the same time, the pressurizing mechanism and the air pressure mechanism can adapt to displacement sensors and objects to be measured of different sizes, thereby improving the efficiency and accuracy of the error monitoring equipment.

[0018] 3. The present invention uses two displacement sensors to compare the data measured by the squeezed displacement sensor with the data measured by the non-squeezed displacement sensor, thereby determining whether there is an error in the displacement sensor under high pressure. It can also apply pressure to the object being measured to detect whether the displacement sensor can identify tiny deformations of the object being measured. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The present invention is a three-dimensional Figure 1 ;

[0020] Figure 2 The present invention is a three-dimensional Figure 2 ;

[0021] Figure 3 A perspective view of the transport mechanism of the present invention;

[0022] Figure 4 A three-dimensional diagram of the pressurizing mechanism of the present invention;

[0023] Figure 5 A perspective view of the internal structure of the transport mechanism of the present invention;

[0024] Figure 6 A three-dimensional diagram of the air pressure mechanism of the present invention;

[0025] Figure 7 is a cross-sectional view of the present invention;

[0026] Figure 8 For the present invention Figure 7 A partial enlarged schematic diagram of area A in the middle.

[0027] In the figure: 1. Base; 2. Mounting frame 1; 3. Pressurizing mechanism; 301. Guide rail 1; 302. Slider 1; 303. Slide motor 1; 304. Mounting frame 2; 305. Cylinder 1; 306. Push rod 1; 307. Moving plate 1; 308. Spring 1; 309. Pressing plate 1; 310. Rubber pad 1; 311. Displacement sensor 1; 4. Slider 2; 5. Displacement sensor 2; 6. Conveying mechanism; 601. Slide motor 2; 602. Guide rail 2; 603. Mounting frame 3; 604. Mounting plate; 605. Motor 1; 606. Rotating shaft; 607. Conveyor belt; 608. Motor 2; 609, gear; 610, moving plate 2; 611, fixed cylinder 1; 612, electromagnet 1; 613, spring 2; 614, fixed block 1; 615, fixed cylinder 2; 616, electromagnet 2; 617, spring 3; 618, fixed block 2; 619, moving plate 3; 7, pneumatic mechanism; 701, glass cover; 702, air pump; 703, air pipe; 704, air cylinder 2; 705, push rod 2; 706, pressure block; 707, spring 4; 708, pressure plate 2; 709, rubber pad 2; 710, exhaust valve; 8, visual sensor 1; 9, visual sensor 2. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] See also Figures 1-8 The present invention provides a technical solution: a displacement sensor error detection device with a simulated high-pressure state, the error detection device includes a base 1, a mounting frame 2 is mounted on the base 1, a pressurizing mechanism 3 is mounted on the mounting frame 2, the pressurizing mechanism 3 includes a displacement sensor 1 311, a displacement sensor 2 5 is provided on one side of the pressurizing mechanism 3, a conveying mechanism 6 is mounted on the inner side of the mounting frame 2, and a pneumatic mechanism 7 is mounted on the upper side of the conveying mechanism 6. The base 1 provides a stable support foundation to ensure the stability and safety of the entire error detection device, the mounting frame 2 provides a fixed position for the pressurizing mechanism 3 and other accessories, ensuring that each component is not subject to external interference during operation, the pressurizing mechanism 3 is used to clamp the displacement sensor 1 311 and apply high pressure to it, the conveying mechanism 6 is used to automatically replace different objects to be measured, reducing the need for manual operation and improving work efficiency, and the pneumatic mechanism 7 is used to apply high pressure to the object to be measured.

[0030] Mounting bracket 2 is located on the upper end surface of base 1 and has a through slot formed therein. Pressurizing mechanism 3 includes guide rails 301, two of which are located within the through slot. A slide motor 303 is mounted on one side of guide rail 301. Sliders 302 are mounted on guide rail 301 and slidably connected to them. Guide rails 301 ensure smooth and precise movement of slides 302 along their designated tracks during pressurization. Slide motor 303 can adjust the speed of slides 302 as needed.

[0031] Mounting frame 2 304 is mounted below slider 1 302 . Two air cylinders 1 305 are mounted opposite each other within mounting frame 2 304 . Cylinder 1 305 is equipped with a push rod 1 306 on one side, and a movable plate 1 307 is mounted on the other side of push rod 1 306 . Multiple sets of springs 1 308 are mounted on the other side of movable plate 1 307 . Rubber pads 1 310 are mounted on the other side of the multiple sets of springs 1 308 . Displacement sensor 1 311 is located between rubber pads 1 310 . Mounting frame 2 304 provides support and stability for the pressurization section. Air pressure from cylinder 1 305 drives push rod 1 306 for smooth movement. Multiple sets of springs 1 308 provide a cushioning effect. Pressure plate 1 309 evenly distributes pressure across the surface of displacement sensor 1 311 to ensure uniform force during pressurization. Rubber pads 1 310 prevent direct friction or damage between pressure plate 1 309 and displacement sensor 1 311 .

[0032] Slider 1 302 is provided with slider 2 4 on one side. Slider 2 4 is located on guide rail 1 301 and is slidably connected to guide rail 1 301. Displacement sensor 2 5 is installed below slider 2 4. Slider 2 4 is used to drive displacement sensor 2 5. Slide motor 1 303 drives slider 1 302 and slider 2 4 to move.

[0033] Conveyor mechanism 6 includes mounting frame 3 603, located on the upper end surface of base 1. Two mounting plates 604 are mounted inside mounting frame 3 603. Motor 1 605 is mounted on one side of mounting plate 604. A rotating shaft 606 is mounted on the output shaft of motor 1 605. Rotating shaft 606 is located between the two mounting plates 604. A conveyor belt 607 is sleeved onto rotating shaft 606. Mounting frame 3 603 supports the entire conveyor mechanism 6, ensuring the stable fixation of all components. Motor 1 605 drives rotating shaft 606, which in turn drives conveyor belt 607. Conveyor belt 607 is used to transport the object being measured to movable plate 3 619.

[0034] Two guide rails 602 are installed on the base 1. Two through-slots are defined at the bottom of the mounting bracket 603. The guide rails 602 mesh with the through-slots, forming a sliding connection between the guide rails 602 and the mounting bracket 603. A slide motor 601 is mounted on one side of the mounting bracket 603, located on the upper surface of the base 1. The two guide rails 602 ensure that the mounting bracket 603 slides smoothly and precisely along the rails. The slide motor 601 is responsible for driving the mounting bracket 603 along the guide rails 602.

[0035] A groove is formed on the upper end surface of the base 1, and two fixed cylinders 615 are installed on the inner walls on both sides of the groove. An electromagnet 2 616 is installed at the bottom of the fixed cylinder 615, and a spring 3 617 is provided on one side of the electromagnet 2 616. A fixed block 2 618 is installed on one side of the spring 3 617. Both sides of the spring 3 617 are connected to the bottom of the fixed cylinder 2 615 and the fixed block 2 618 respectively. Two fixed cylinders 1 611 are installed on the upper side of the fixed cylinder 2 615. The two fixed cylinders 1 611 are respectively located on both sides of the inner wall of the mounting frame 3 603. An electromagnet 1 612 is installed at the bottom of the fixed cylinder 1 611. A spring 2 613 is provided on one side of the electromagnet 1 612. A spring 2 613 is provided on one side of the spring 2 613. A fixed block 614 is installed, and both sides of the spring 2 613 are respectively connected to the bottom of the fixed cylinder 1 611 and the fixed block 1 614, a movable plate 2 610 is provided in the groove, and two through slots are respectively opened on both sides of the movable plate 2 610, the fixed block 1 614 and the fixed block 2 618 cooperate with the through slots on the movable plate 2 610, and a tooth-shaped groove is opened on the movable plate 2 610, and a motor 2 608 is installed on one side of the mounting frame 3 603, and the motor 2 608 is located on the upper end surface of the base 1, and a gear 609 is installed on the output shaft of the motor 2 608, and the gear 609 is meshed and connected with the movable plate 2 610, and a movable plate 3 619 is installed above the movable plate 2 610. Electromagnet 2 616 uses magnetic force to achieve the adsorption and release of fixed block 2 618, electromagnet 1 612 uses magnetic force to achieve the adsorption and release of fixed block 1 614, motor 2 608 is responsible for driving gear 609 to engage with the tooth groove of movable plate 2 610, pushing movable plate 2 610 to move, and movable plate 3 619 is used to drive the object to be measured to move up and down.

[0036] The pneumatic mechanism 7 includes a glass cover 701, which is located on the upper end surface of the mounting frame 3 603. Two cylinders 2 704 are installed on both sides of the glass cover 701. A push rod 2 705 is installed on one side of the cylinder 2 704. A pressure block 706 is installed on one side of the push rod 2 705. Multiple groups of springs 4 707 are installed on one side of the spring 4 707. A pressure plate 2 708 is installed on one side of the pressure plate 2 708. A rubber pad 2 709 is installed on one side of the pressure plate 2 708. An air pump 702 is installed on the upper end surface of the base 1. An air pipe 703 is installed on the air pump 702. The other side of the air pipe 703 is connected to the glass cover 701. An exhaust valve 710 is provided on the glass cover 701. Glass cover 701 provides a closed working environment for the entire pneumatic mechanism 7, facilitating measurement of the measured object by displacement sensor 1 311 and displacement sensor 2 5. Cylinder 2 704 is used to push pressure plate 2 708 to move and clamp the measured object. Rubber pad 2 709 prevents pressure plate 2 708 from directly contacting the measured object and causing surface damage. Air pump 702 delivers gas into glass cover 701 through air pipe 703 to simulate an actual high-pressure environment. Exhaust valve 710 is used to control the release of gas.

[0037] A visual sensor 1 (8) is mounted on the upper inner wall of mounting frame 1 (2), and a visual sensor 2 (9) is mounted on one side of the inner wall of mounting frame 3 (603). Both visual sensors 1 (8) and 2 (9) are electrically connected to the control system. Visual sensor 1 (8) monitors the real-time position of displacement sensor 1 (311), displacement sensor 2 (5), and the object being measured. Visual sensor 2 (9) monitors the real-time position of the object being measured during transportation.

[0038] Working principle of the present invention: Before the error detection device works, the object to be detected is placed on the conveyor belt 607. The control system controls the motor 1 605 to drive the conveyor belt 607 to rotate. The conveyor belt 607 transports the object to be detected into the mounting frame 3 603. The visual sensor 1 8 detects that the object to be detected moves to the movable plate 3 619. The electromagnet 1 612 and the electromagnet 2 616 are turned on to attract the fixed block 1 614 and the fixed block 2 618. The motor 2 608 is turned on to drive the gear 609 to rotate. The gear 609 and the movable plate 2 619 are connected. 10 engagement drives the movable plate 2 610 to move upward. After the visual sensor 2 9 detects that the movable plate 3 619 moves to the upper end surface of the mounting frame 3 603, the control system controls the electromagnet 1 612 to cut off the power, and the fixed block 1 614 moves outward under the push of the spring 2 613. The fixed block 1 614 engages with the groove on the movable plate 2 610 to fix the movable plate 2 610. The control system controls the cylinders 2 704 on both sides to operate. The cylinders 2 704 drive the pressure plate 2 708 to move toward the object to be measured, and the rubber pad 2 709 clamps the object to be measured.

[0039] The control system controls the operation of slide motor 303, which drives slider 302 to slide along guide rail 301. Slider 302 drives mounting frame 2 304 to move above glass cover 701, placing displacement sensor 1 311 between rubber pad 1 310. Cylinder 1 305 operates to push pressure plates 1 309 on both sides to move relative to each other, clamping displacement sensor 1 311 and applying high pressure. Slide motor 2 601 operates to drive mounting frame 3 603 to move a certain distance along guide rail 2 602, and then stops. At this time, the data of displacement sensor 1 311 and displacement sensor 2 5 are read, and the two sets of data are compared to determine whether there is an error in displacement sensor 1 311.

[0040] The control system controls the operation of the air pump 702 to deliver high-pressure gas into the glass cover 701, applying high pressure to the object being measured. The displacement sensor 1 311 and the displacement sensor 2 5 detect the object being measured. The data of the two displacement sensors are compared to determine whether the displacement sensor 1 311 can detect the slight deformation of the object being measured under high pressure. Then, the slide motor 2 601 is started to move the object being measured. The data difference between the two displacement sensors is compared to evaluate whether the displacement sensor 1 311 can accurately detect the slight deformation and displacement error of the object being measured under high pressure in the high-pressure environment.

[0041] After the test is completed, the exhaust valve 710 is opened to discharge the high-pressure gas in the glass cover 701, and the electromagnet 1 612 is energized to attract the fixed block 1 614 to move to the bottom of the fixed cylinder 1 611. The motor 2 608 is turned on to drive the gear 609 to rotate in the opposite direction, and the movable plate 2 610 moves downward into the groove of the base 1. The control system controls the electromagnet 1 612 and the electromagnet 2 616 to be de-energized. The fixed block 1 614 and the fixed block 2 618 move outward under the push of the spring 2 613 and the spring 3 617 to fix the movable plate 2 610. The motor 2 608 is turned on to drive the conveyor belt 607 to rotate and transport the object to be measured out of the error detection equipment. Then the object to be measured is replaced, and the cylinder 1 305 is turned on to drive the pressure plate 1 309 to move to both sides. The displacement sensor 1 311 is replaced with a new displacement sensor, and then the error of the new displacement sensor under high pressure is tested.

[0042] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A displacement sensor error detection device capable of simulating a high pressure state, characterized in that: The error detection device comprises a base (1), a mounting frame (2) is mounted on the base (1), a pressurizing mechanism (3) is mounted on the mounting frame (2), the pressurizing mechanism (3) comprises a displacement sensor (311), a displacement sensor (5) is arranged on one side of the pressurizing mechanism (3), a conveying mechanism (6) is mounted on the inner side of the mounting frame (2), and a pneumatic mechanism (7) is mounted on the upper side of the conveying mechanism (6).

2. The displacement sensor error detection device capable of simulating a high pressure state according to claim 1, characterized in that: The mounting frame (2) is located on the upper end surface of the base (1), and a through slot is formed on the upper end surface of the mounting frame (2). The pressure mechanism (3) includes a guide rail (301), two guide rails (301) are located inside the through slot, a slide motor (303) is installed on one side of the guide rail (301), a slider (302) is installed on the guide rail (301), and the slider (302) is slidably connected to the guide rail (301).

3. The displacement sensor error detection device capable of simulating a high pressure state according to claim 2, characterized in that: A mounting frame 2 (304) is installed on the lower side of the slider 1 (302), and two cylinders 1 (305) are installed on the inner side of the mounting frame 2 (304). A push rod 1 (306) is provided on one side of the cylinder 1 (305), and a moving plate 1 (307) is installed on one side of the push rod 1 (306). A plurality of groups of springs 1 (308) are provided on one side of the moving plate 1 (307), and a pressure plate 1 (309) is installed on one side of the plurality of groups of springs 1 (308). A rubber pad 1 (310) is provided on the pressure plate 1 (309), and a displacement sensor 1 (311) is provided between the rubber pads 1 (310).

4. The displacement sensor error detection device capable of simulating a high pressure state according to claim 3, characterized in that: A slider 2 (4) is provided on one side of the slider 1 (302), and the slider 2 (4) is located on the guide rail 1 (301). The slider 2 (4) is slidably connected to the guide rail 1 (301), and a displacement sensor 2 (5) is installed below the slider 2 (4).

5. The displacement sensor error detection device capable of simulating a high pressure state according to claim 4, characterized in that: The conveying mechanism (6) includes a mounting frame three (603), the mounting frame three (603) is located on the upper end surface of the base (1), two mounting plates (604) are installed on the inner side of the mounting frame three (603), a motor one (605) is installed on one side of the mounting plate (604), a rotating shaft (606) is installed on the output shaft of the motor one (605), the rotating shaft (606) is located between the two mounting plates (604), and a conveyor belt (607) is sleeved on the rotating shaft (606).

6. The displacement sensor error detection device capable of simulating a high pressure state according to claim 5, characterized in that: Two guide rails (602) are provided on the base (1), and two through slots are provided at the bottom of the mounting frame (603). The guide rails (602) are engaged with the through slots, and the guide rails (602) are slidably connected to the mounting frame (603). A slide motor (601) is installed on one side of the mounting frame (603), and the slide motor (601) is located on the upper end surface of the base (1).

7. The displacement sensor error detection device capable of simulating a high pressure state according to claim 6, characterized in that: The upper end surface of the base (1) is provided with a groove, and two fixed cylinders (615) are installed on the inner walls on both sides of the groove. An electromagnet (616) is installed at the bottom of the fixed cylinder (615). A spring (617) is provided on one side of the electromagnet (616). A fixed block (618) is installed on one side of the spring (617). Both sides of the spring (617) are connected to the bottom of the fixed cylinder (615) and the fixed block (618). Two fixed cylinders (611) are installed on the upper side of the fixed cylinder (615). The two fixed cylinders (611) are located on both sides of the inner wall of the mounting frame (603). An electromagnet (612) is installed at the bottom of the fixed cylinder (611). A spring (613) is provided on one side of the electromagnet (612). The spring (613) is connected to the bottom of the fixed cylinder (615) and the fixed block (618). A fixed block 1 (614) is installed on one side of the mounting frame 3 (603). Both sides of the spring 2 (613) are connected to the bottom of the fixed cylinder 1 (611) and the fixed block 1 (614) respectively. A movable plate 2 (610) is provided in the groove. Two through slots are respectively provided on both sides of the movable plate 2 (610). The fixed block 1 (614) and the fixed block 2 (618) match the through slots on the movable plate 2 (610). The movable plate 2 (610) has a toothed slot. A motor 2 (608) is installed on one side of the mounting frame 3 (603). The motor 2 (608) is located on the upper end surface of the base (1). A gear (609) is installed on the output shaft of the motor 2 (608). The gear (609) is meshed and connected with the movable plate 2 (610). A movable plate 3 (619) is installed above the movable plate 2 (610).

8. The displacement sensor error detection device capable of simulating a high pressure state according to claim 7, characterized in that: The pneumatic mechanism (7) comprises a glass cover (701), the glass cover (701) being located on the upper end surface of the mounting frame (603), two cylinders (704) being respectively installed on both sides of the glass cover (701), a push rod (705) being installed on one side of the cylinder (704), a pressure block (706) being installed on one side of the push rod (705), a plurality of springs (707) being installed on one side of the pressure block (706), a pressure plate (708) being installed on one side of the spring (707), a rubber pad (709) being installed on one side of the pressure plate (708), an air pump (702) being installed on the upper end surface of the base (1), an air delivery pipe (703) being installed on the air pump (702), the other side of the air delivery pipe (703) being connected to the glass cover (701), and an exhaust valve (710) being provided on the glass cover (701).

9. The displacement sensor error detection device capable of simulating a high pressure state according to claim 8, characterized in that: A visual sensor 1 (8) is installed on the upper side of the inner wall of the mounting frame 1 (2), and a visual sensor 2 (9) is installed on one side of the inner wall of the mounting frame 3 (603). The visual sensor 1 (8) and the visual sensor 2 (9) are electrically connected to the control system.

Citation Information

Patent Citations

  • A method for error detection of displacement sensors for high-voltage switchgear

    CN105790662B