A valve body disassembly device for a hydraulic operating mechanism

Abstract

This invention discloses a hydraulic operating mechanism valve body disassembly device, comprising: a fixed frame; a screw rotatably mounted on the fixed frame in a vertical direction; a drive assembly connected to the screw; an electrical connection between the drive assembly and a controller; a movably mounted mounting component on the screw; two first oblong holes on the mounting component; the axis of the screw being collinear with the symmetrical center line of the two first oblong holes; a bolt rod movably mounted in each of the first oblong holes; one end of the bolt rod connecting to a first threaded hole in the valve body; and a limiting nut at the other end of the bolt rod; and displacement sensors corresponding to the bolt rod. When the distances detected by the two displacement sensors are equal, the controller determines that the screw rod coincides with the central axis of the valve body. This hydraulic operating mechanism valve body disassembly device can automatically extract the valve body along its central axis, avoiding directional deviations during manual extraction and improving the efficiency of subsequent equipment maintenance.

Description

Technical Field

[0001] This invention relates to the technical field of hydraulic operating mechanisms, and more particularly to a valve body disassembly device for hydraulic operating mechanisms. Background Technology

[0002] Currently, hydraulic operating mechanisms are widely used in ultra-high voltage and extra-high voltage circuit breakers to operate the circuit breakers for opening and closing actions. The characteristics of hydraulic operating mechanisms include constant high voltage holding, instantaneous action, large operating power, high opening speed, and rapid and stable operation, giving them advantages that other operating mechanisms cannot replace.

[0003] However, due to the high working pressure of hydraulic operating mechanisms, the compressibility of hydraulic oil, and its temperature sensitivity, hydraulic operating mechanisms are prone to failure, requiring manual disassembly of the valve body for repair. Current methods for disassembling valve bodies mostly involve manual extraction. Because manual extraction lacks precise positioning, it easily leads to deviations in the extraction direction, causing damage to the valve body. This is not only time-consuming and labor-intensive but also increases the maintenance time for subsequent equipment. Summary of the Invention

[0004] To address the above shortcomings, this invention proposes a valve body disassembly device for a hydraulic operating mechanism. The device automatically extracts the valve body along the central axis of the valve body using mounting components, avoiding directional deviations that can occur with manual valve body extraction and improving the maintenance efficiency of subsequent equipment.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A hydraulic operating mechanism valve body disassembly device includes: a fixed frame, a screw rotatably mounted on the fixed frame in a vertical direction, the screw being connected to a drive assembly for driving its rotation, the drive assembly being electrically connected to a controller, a mounting component movably mounted on the screw, the mounting component having two first oblong holes spaced apart along the same straight line, the axis of the screw being collinear with the symmetrical center line of the two first oblong holes, a bolt rod movably mounted in each of the first oblong holes, one end of the bolt rod being used to connect to a first threaded hole in the valve body, the other end of the bolt rod having a limiting nut, and a displacement sensor corresponding to each bolt rod, the displacement sensor being used to detect the distance between itself and the bolt rod; when the distances detected by the two displacement sensors are equal, the controller determines that the screw coincides with the central axis of the valve body.

[0007] The hydraulic operating mechanism valve body disassembly device according to an embodiment of the present invention has at least the following beneficial effects: In use, one end of each bolt rod is first connected to the corresponding first threaded hole of the valve body, and the other end of each bolt rod passes through the corresponding oblong hole and is fitted with a limit nut. Then, the displacement sensor detects the distance between itself and the bolt rod. The fixed frame is moved until the distance detected by the two displacement sensors is equal, at which point the movement of the fixed frame is stopped. Finally, the controller determines that the screw rod coincides with the central axis of the valve body, and the controller drives the drive assembly to run, causing the screw rod to rotate and drive the mounting part to move upward. This allows the valve body to be automatically extracted along the central axis of the valve body, which helps to avoid directional deviations during manual extraction of the valve body and also helps to distribute the force exerted by the mounting part on the valve body evenly. This improves the smoothness and automation of valve body disassembly, thereby improving the maintenance efficiency of subsequent equipment.

[0008] Furthermore, the fixing frame includes two first mounting plates spaced apart in a vertical direction, the screw is rotatably disposed between the two first mounting plates, a slide rail is provided between the two first mounting plates, the slide rail is arranged parallel to the screw, the screw is threadedly fitted with a slider, the slider is slidably fitted with the slide rail, and the mounting component is connected to the lower end of the slider.

[0009] Furthermore, the fixing frame also includes two opposing second mounting plates, the second mounting plates connecting one side of the two first mounting plates, the slide rail including a retaining plate arranged parallel to the second mounting plates, and the slider having a retaining groove that slides with the retaining plate.

[0010] Furthermore, a fixing plate is connected to the lower end of the second mounting plate. The fixing plate has a second oblong hole along its length. The axis of the second oblong hole is parallel to the axis of the first oblong hole. The second oblong hole is used to connect to the second threaded hole of the hydraulic operating mechanism.

[0011] Furthermore, the mounting component includes two parallel vertical plates, the upper end of which is connected to the slider, and two displacement sensors are respectively disposed on the corresponding vertical plates. The axis of the screw is collinear with the axis of symmetry of the two vertical plates.

[0012] Furthermore, the lower end of the vertical plate is connected to a horizontal plate, and the horizontal plate is provided with the first waist-shaped hole along its length direction. The vertical plate and the horizontal plate are an integral structure.

[0013] Furthermore, the displacement sensor is a laser sensor, and the output end of the laser sensor faces the bolt rod.

[0014] Furthermore, the mounting bracket is equipped with a display screen, which is electrically connected to a data processing module. The displacement sensor is electrically connected to the data processing module, and the display screen is used to display the values ​​detected by the two displacement sensors.

[0015] Furthermore, the drive assembly includes a motor electrically connected to the controller, the motor is mounted on the fixed frame, and the output end of the motor is connected to the screw via a belt mechanism.

[0016] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0018] Figure 1 This is a schematic diagram of a structure of an embodiment of a hydraulic operating mechanism valve body disassembly device according to the present invention;

[0019] Figure 2 for Figure 1 A partial structural diagram of the assembly on the valve body.

[0020] In the figure: 100 fixed frame, 101 first mounting plate, 102 second mounting plate, 103 fixed plate, 104 second oblong hole, 110 screw, 120 drive assembly, 121 motor, 122 belt mechanism, 123 gear reducer, 130 slide rail, 131 clamping plate, 132 connecting plate, 140 slider, 200 mounting component, 201 first oblong hole, 202 vertical plate, 203 horizontal plate, 300 valve body, 301 first threaded hole, 400 displacement sensor, 500 hydraulic operating mechanism, 501 second threaded hole. Detailed Implementation

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

[0022] In the description of this invention, it should be noted that the terms "inner", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this invention is usually placed when in use. They are only for the convenience of describing this invention 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 limiting this invention.

[0023] In the description of this invention, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set" and "connection" 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 mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0025] See Figure 1 and Figure 2 A hydraulic operating mechanism valve body disassembly device includes: a fixed frame 100, a screw 110 rotatably mounted on the fixed frame 100 in the vertical direction, a drive assembly 120 connected to the screw 110 for driving its rotation, the drive assembly 120 being electrically connected to a controller, a mounting part 200 movably mounted on the screw 110, the mounting part 200 having two first oblong holes 201 spaced apart along the same straight line, the axis of the screw 110 being collinear with the symmetrical center line of the two first oblong holes 201, a bolt rod movably mounted on the first oblong hole 201, one end of the bolt rod being used to connect to the first threaded hole 301 of the valve body 300, the other end of the bolt rod having a limiting nut, and a displacement sensor 400 corresponding to each bolt rod. The displacement sensor 400 is used to detect the distance between itself and the bolt rod. When the distances detected by the two displacement sensors 400 are equal, the controller determines that the screw 110 coincides with the central axis of the valve body 300.

[0026] In the hydraulic operating mechanism valve body disassembly device described above, during use, one end of each bolt rod is first connected to the corresponding first threaded hole 301 of the valve body 300, while the other end of each bolt rod passes through the corresponding first oblong hole 201 and is fitted with a limit nut. Then, the displacement sensor 400 detects the distance between itself and the bolt rod. The fixed frame 100 is moved until the distances detected by the two displacement sensors 400 are equal, at which point the movement of the fixed frame 100 is stopped. Finally, the controller determines that the screw 110 coincides with the central axis of the valve body 300, and the controller drives the drive assembly 120 to run, causing the screw 110 to rotate and drive the mounting part 200 to move upward. This allows the valve body 300 to be automatically extracted along the central axis of the valve body 300, which helps to avoid directional deviations during manual extraction of the valve body 300 and also helps to evenly distribute the force exerted by the mounting part 200 on the valve body 300, improving the smoothness and automation of valve body 300 disassembly, thereby improving the maintenance efficiency of subsequent equipment.

[0027] See Figure 1 and Figure 2 Furthermore, the fixing frame 100 includes two first mounting plates 101 spaced apart in a vertical direction. A screw 110 is rotatably disposed between the two first mounting plates 101. A slide rail 130 is provided between the two first mounting plates 101, and the slide rail 130 is arranged parallel to the screw 110. A slider 140 is threadedly engaged with the screw 110, and the slider 140 is slidably engaged with the slide rail 130. The mounting member 200 is connected to the lower end of the slider 140. Specifically, the engagement of the slider 140 and the slide rail 130 can restrict the rotation of the mounting member 200, allowing the mounting member 200 to drive the valve body 300 to reciprocate in a vertical direction, further preventing the extraction direction of the valve body 300 from deviating. In some embodiments, the slide rail 130 can also be replaced with a guide rod, and the slider 140 is provided with a guide hole that engages with the guide rod, which can also guide and limit the movement of the mounting member 200.

[0028] See Figure 1 and Figure 2Furthermore, the fixing frame 100 also includes two opposing second mounting plates 102, which connect one side of the two first mounting plates 101. The slide rail 130 includes a retaining plate 131 parallel to the second mounting plates 102, and the slider 140 has a retaining groove that slides with the retaining plate 131, thereby guiding and limiting the movement of the mounting component 200 through the cooperation of the retaining plate 131 and the retaining groove. Specifically, the first mounting plate 101 and the second mounting plate 102 are integrally molded by injection molding or fixed by welding, which helps to ensure the structural strength of the fixing frame 100. The slider 140 includes an L-shaped plate, the transverse surface of which is connected to a first mounting block. Both the transverse surface of the L-shaped plate and the first mounting block have mounting holes that thread with the screw 110. The vertical surface of the L-shaped plate is connected to a second mounting block, and a retaining groove is formed on the side of the second mounting block, so that the slider 140 can cooperate with the screw 110 and the slide rail 130. In addition, the slide rail 130 also includes a connecting plate 132 connected to the second mounting plate 102. The connecting plate 132 is arranged in a vertical direction, so that the length direction of the slide rail 130 is parallel to the axis of the screw 110.

[0029] See Figure 1 and Figure 2 Furthermore, a fixing plate 103 is connected to the lower end of the second mounting plate 102. The fixing plate 103 has a second oblong hole 104 along its length. The axis of the second oblong hole 104 is parallel to the axis of the first oblong hole 201. The second oblong hole 104 is used to connect to the second threaded hole 501 of the hydraulic operating mechanism 500. Specifically, the fixing plate 103 is provided with a bolt rod. One end of the bolt rod is connected to the second threaded hole 501, and the other end of the bolt rod passes through the second oblong hole 104 and is connected to a limit nut. When the distances detected by the two displacement sensors 400 are equal, the movement of the fixing frame 100 is stopped, and the limit nut is tightened to the bolt rod, thereby better locking the installation position of the fixing frame 100 and preventing the fixing frame 100 from moving and affecting the extraction of the valve body 300. It is understandable that this device utilizes the existing first threaded hole 301 and second threaded hole 501 in the equipment to fix the mounting component 200 and the fixing bracket 100 with the end face of the valve body 300 as the base surface, thereby facilitating the subsequent removal of the valve body 300 by moving the mounting component 200 and ensuring the convenience of disassembling the valve body 300.

[0030] See Figure 1 and Figure 2Furthermore, the mounting component 200 includes two parallel vertical plates 202, with a slider 140 connected to the upper end of each vertical plate 202. Two displacement sensors 400 are respectively mounted on the corresponding vertical plates 202. The axis of the screw 110 is collinear with the axis of symmetry of the two vertical plates 202. Thus, the two displacement sensors 400 detect the distance between the screw 110 and its corresponding bolt rod, indirectly determining whether the screw 110 coincides with the central axis of the valve body 300. This facilitates the smooth extraction of the valve body 300 along its central axis. It is understood that the vertical plates 202 are fixed to the slider 140 by welding, and the displacement sensors 400 are fixed to the vertical plates 202 by bolts; details will not be elaborated here.

[0031] See Figure 1 and Figure 2 Furthermore, a horizontal plate 203 is connected to the lower end of the vertical plate 202. The horizontal plate 203 has a first oblong hole 201 along its length. The vertical plate 202 and the horizontal plate 203 are an integral structure. Specifically, the horizontal plate 203 abuts against the end face of the valve body 300, which helps to increase the contact area of ​​the subsequent mounting component 200 lifting the valve body 300, thereby improving the stability of extracting the valve body 300. The vertical plate 202 and the horizontal plate 203 are integrally molded by injection molding or fixed by welding, which helps to ensure the structural strength of the mounting component 200.

[0032] Furthermore, the displacement sensor 400 is a laser sensor, with its output end facing the bolt rod, thereby improving the accuracy and precision of the detection distance. The displacement sensor 400 can also be replaced with an ultrasonic sensor, which will not be detailed here.

[0033] Furthermore, the mounting bracket 100 is equipped with a display screen, which is electrically connected to a data processing module. The displacement sensor 400 is also electrically connected to the data processing module. The display screen shows the values ​​detected by the two displacement sensors 400, allowing users to stop moving the mounting bracket 100 in a timely manner based on these values. The controller is electrically connected to a switch button, which controls the operation or stop of the drive assembly 120. When the two values ​​displayed on the screen are equal, the user tightens the limit nut on the corresponding bolt, connecting the mounting piece 200 to the valve body 300 as a single unit. The mounting bracket 100 is then fixed to the hydraulic operating mechanism 500. Finally, pressing the switch button causes the drive assembly 120 to rotate the screw 110, reducing vibration caused by the connection and ensuring the stability of the valve body 300. This also allows users to manually control the distance the mounting piece 200 moves, improving the user experience. It is understood that if the displacement sensor 400 generates a data signal, the data processing module uses a microcontroller to read it and displays it on the display screen via the microcontroller. If the displacement sensor 400 generates an analog signal, the data processing module also includes an A / D conversion circuit to convert the analog signal into a digital signal and output it using a microcontroller.

[0034] See Figure 1 and Figure 2 Furthermore, the drive assembly 120 includes a motor 121 electrically connected to a controller. The motor 121 is mounted on the fixed frame 100, and its output end is connected to the screw 110 via a belt mechanism 122. Specifically, the belt mechanism 122 includes a drive pulley connected to the output end of the motor 121. The drive pulley is connected to a driven pulley via a belt drive, and the driven pulley is connected to the screw 110. Thus, the screw 110 is driven to rotate through the torque transmission between the motor 121 and the belt mechanism 122. In some embodiments, a gear reducer 123 is connected between the motor 121 and the belt mechanism 122 to increase the output torque of the motor 121 and increase the axial load on the screw 110. It is understood that the belt mechanism 122 can also be replaced by a chain mechanism; the specific structure is not described in detail.

[0035] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0036] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A valve body disassembly device for a hydraulic operating mechanism, characterized in that, include: A fixed frame (100) is provided with a screw (110) rotatably mounted in the vertical direction. The screw (110) is connected to a drive assembly (120) that drives its rotation. The drive assembly (120) is electrically connected to a controller. The screw (110) is movably provided with a mounting part (200). The mounting part (200) has two first oblong holes (201) spaced apart along the same straight line. The axis of the screw (110) is collinear with the symmetrical center line of the two first oblong holes (201). The first waist-shaped hole (201) is movably provided with a bolt rod. One end of the bolt rod is used to connect to the first threaded hole (301) of the valve body (300). The other end of the bolt rod is provided with a limiting nut. The mounting part (200) is provided with displacement sensors (400) that correspond one-to-one with the bolt rod. The displacement sensors (400) are used to detect their distance from the bolt rod. When the distances detected by the two displacement sensors (400) are equal, the controller determines that the screw (110) coincides with the central axis of the valve body (300). The fixing frame (100) includes two first mounting plates (101) spaced apart in a vertical direction. The screw (110) is rotatably disposed between the two first mounting plates (101). A slide rail (130) is provided between the two first mounting plates (101). The slide rail (130) is arranged parallel to the screw (110). The screw (110) is threadedly fitted with a slider (140). The slider (140) is slidably fitted with the slide rail (130). The mounting component (200) is connected to the lower end of the slider (140). The fixing frame (100) also includes two opposing second mounting plates (102), the second mounting plates (102) are connected to one side of the two first mounting plates (101), the slide rail (130) includes a card plate (131) arranged parallel to the second mounting plates (102), and the slider (140) is provided with a slot that slides with the card plate (131); The lower end of the second mounting plate (102) is connected to a fixing plate (103). The fixing plate (103) has a second waist-shaped hole (104) along its length. The axis of the second waist-shaped hole (104) is parallel to the axis of the first waist-shaped hole (201). The second waist-shaped hole (104) is used to connect to the second threaded hole (501) of the hydraulic operating mechanism (500). The mounting component (200) includes two parallel vertical plates (202), the upper end of the vertical plates (202) is connected to the slider (140), two displacement sensors (400) are respectively disposed on the corresponding vertical plates (202), and the axis of the screw (110) is collinear with the axis of symmetry of the two vertical plates (202); The lower end of the vertical plate (202) is connected to a horizontal plate (203), and the horizontal plate (203) is provided with the first waist-shaped hole (201) along its length direction. The vertical plate (202) and the horizontal plate (203) are an integral structure.

2. The hydraulic operating mechanism valve body disassembly device according to claim 1, characterized in that, The displacement sensor (400) is a laser sensor, and the output end of the laser sensor faces the bolt rod.

3. The hydraulic operating mechanism valve body disassembly device according to claim 1, characterized in that, The mounting bracket (100) is equipped with a display screen, which is electrically connected to a data processing module. The displacement sensor (400) is electrically connected to the data processing module. The display screen is used to display the values ​​detected by the two displacement sensors (400).

4. The hydraulic operating mechanism valve body disassembly device according to claim 1, characterized in that, The drive assembly (120) includes a motor (121) which is electrically connected to the controller. The motor (121) is mounted on the fixed frame (100), and the output end of the motor (121) is connected to the screw (110) via a belt mechanism (122).

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