An online measuring device for the cone surface of a plug valve

Abstract

The utility model discloses an online measuring device for the conical surface of a plug valve, comprising a cross frame and a detection mechanism; the cross frame: a connecting frame is provided on the upper side thereof, a sliding groove provided on the rear side of the cross frame is slidably connected with a uniformly distributed sliding seat, the rear end of the sliding seat is provided with a limit seat, a lower avoidance seat is provided on the lower side of the cross frame through a fixed seat, a rectangular seat is provided on the upper side of the lower avoidance seat, a stud 2 is connected to the inner thread of the rectangular seat, the upper end of the stud 2 is rotatably connected with an upper avoidance seat through a bearing, and a uniformly distributed telescopic rod is provided between the upper avoidance seat and the lower avoidance seat; the detection mechanism: it is slidably connected to the connecting frame, and also comprises a single chip microcomputer, and the single chip microcomputer is arranged outside the cross frame. The online measuring device for the conical surface of the plug valve can automatically measure the conical surface of the plug valve online through a transmission element and a detection element, is easy to use, ensures the accuracy of the conical surface processing of the plug valve in the later stage, and has a high degree of automation.

Description

Technical Field

[0001] The utility model relates to the technical field of plug valves, in particular to an online measuring device for the cone surface of a plug valve. Background Art

[0002] The pressure balanced plug valve is mainly composed of valve body, plug, valve cover, valve stem and other parts. Its sealing surface is a large cone surface. The manufacture of valve body and plug is the core of pressure balanced plug valve.

[0003] The plug is mainly made of a new type of steel with high wear resistance. In order to ensure the surface roughness and dimensional accuracy, the taper of the plug needs to be ground after turning. When the plug is ground on the grinder, the center parts of the upper and lower sides of the plug need to be tightened by ejectors, and the detection of the taper size itself is difficult. When inspecting the taper of some plugs, the staff needs to remove the plug from the ejector, and then measure the taper of the plug with a vernier caliper and other auxiliary measuring tools. However, this method removes the plug from the equipment. If the measurement result of the taper of the plug is unqualified, when the plug is installed between the two ejectors again, it cannot be ensured that the center of the plug is restored to the center of the last processing, which affects the subsequent processing accuracy of the taper of the plug. In addition, the manual measurement of the taper of the plug requires the help of staff, resulting in low measurement accuracy and efficiency. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the existing defects and provide an online measuring device for the cone surface of a plug valve. The device can automatically perform online measurement of the cone surface of the plug valve through a transmission element and a detection element. The device is easy to use, ensures the accuracy of the cone surface processing of the plug valve in the later stage, has a high degree of automation, and can effectively solve the problems in the background technology.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: an online measuring device for the cone surface of a plug valve, comprising a horizontal frame and a detection mechanism;

[0006] Cross frame: A connecting frame is provided on its upper side, and a sliding groove provided on the rear side of the cross frame is slidably connected with evenly distributed sliding seats, and the rear ends of the sliding seats are provided with limit seats, and a lower avoidance seat is provided on the lower side of the cross frame through a fixed seat, and a rectangular seat is provided on the upper side of the lower avoidance seat, and a stud 2 is connected to the inner thread of the rectangular seat, and the upper end of the stud 2 is rotatably connected to the upper avoidance seat through a bearing, and evenly distributed telescopic rods are provided between the upper avoidance seat and the lower avoidance seat;

[0007] Detection mechanism: It is slidably connected to the connecting frame. The device can automatically measure the taper surface of the plug online through the transmission element and the detection element. It is easy to use, ensures the accuracy of the taper surface processing of the plug in the later stage, and has a high degree of automation.

[0008] Furthermore, it also includes a single chip microcomputer, which is arranged outside the horizontal frame, and the input end of the single chip microcomputer is electrically connected to the external power supply, so that the electrical components can be easily controlled.

[0009] Furthermore, the detection mechanism includes a lifting frame, a telescopic column, a spring, a detection seat, a rotating shaft, a contact seat, a pressure sensor, a motor 1 and an angle sensor. The lifting frame is slidably connected to the connecting frame. The rear ends of the left and right sides of the lifting frame are provided with detection seats through evenly distributed telescopic columns and springs. The springs are movably connected to the outer ends of adjacent telescopic columns. The interiors of the detection seats are rotatably connected to the rotating shafts through bearings. The middle of the rotating shafts is provided with contact seats. The side of the contact seats close to the center of the cross frame is provided with evenly distributed pressure sensors. The rear ends of the rotating shafts are provided with angle sensors. The angle sensors and the pressure sensors are electrically connected to the single-chip microcomputer in both directions. The front sides of the detection seats are provided with motor 1. The input ends of the motor 1 are electrically connected to the output ends of the single-chip microcomputer. The output shafts of the motor 1 are fixedly connected to the front ends of the adjacent rotating shafts, so that the taper surface of the valve is automatically measured online.

[0010] Furthermore, a stud one is rotatably connected between the cross frame and the connecting frame via a bearing, and the stud one is threadedly connected to the lifting frame. A motor two is provided on the upper side of the connecting frame, and the input end of the motor two is electrically connected to the output end of the single-chip microcomputer. The output shaft of the motor two is fixedly connected to the upper end of the stud one, thereby providing power for the online measuring part of the device to move up along the conical surface of the valve.

[0011] Furthermore, the interior of the slide groove is rotatably connected to a bidirectional lead screw through a bearing, and the slide seats are threadedly connected to the bidirectional lead screw. Motor three is provided on the right side of the cross frame, and the input end of motor three is electrically connected to the output end of the single-chip microcomputer. The output shaft of motor three is fixedly connected to the right end of the bidirectional lead screw, providing power for online horizontal fixation of the device and the plug.

[0012] Furthermore, a motor four is provided on the upper side of the upper avoidance seat, the input end of the motor four is electrically connected to the output end of the single-chip microcomputer, and the output shaft of the motor four is fixedly connected to the upper end of the stud two, providing power for the device to vertically fix the plug online.

[0013] Furthermore, the relative inner sides of the lower avoidance seat and the upper avoidance seat are provided with evenly distributed rubber pads to prevent the avoidance seat and the plug from sliding relative to each other when the device measures the taper surface of the plug online.

[0014] Compared with the prior art, the utility model has the beneficial effects that the cone surface online measuring device of the plug valve can automatically measure the cone surface of the plug valve online through the transmission element and the detection element, is easy to use, ensures the accuracy of the cone surface processing of the plug valve in the later stage, and has a high degree of automation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the rear structure of the utility model;

[0017] Figure 3 It is a schematic diagram of the enlarged structure of point A of the utility model.

[0018] In the figure: 1 horizontal frame, 2 single chip computer, 3 connecting frame, 4 detection mechanism, 41 lifting frame, 42 telescopic column, 43 spring, 44 detection seat, 45 rotating shaft, 46 contact seat, 47 pressure sensor, 48 motor one, 49 angle sensor, 5 stud one, 6 motor two, 7 slide seat, 8 limit seat, 9 bidirectional lead screw, 10 motor three, 11 lower avoidance seat, 12 rectangular seat, 13 stud two, 14 upper avoidance seat, 15 telescopic rod, 16 motor four, 17 rubber pad. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-3 , This embodiment provides a technical solution: an online measuring device for the cone surface of a plug valve, comprising a horizontal frame 1 and a detection mechanism 4;

[0021] Cross frame 1: A connecting frame 3 is provided on its upper side, and a sliding groove opened on the rear side of the cross frame 1 is slidably connected with a uniformly distributed sliding seat 7, and a limit seat 8 is provided at the rear end of the sliding seat 7. A lower avoidance seat 11 is provided on the lower side of the cross frame 1 through a fixed seat, and a rectangular seat 12 is provided on the upper side of the lower avoidance seat 11, and a stud 13 is connected to the inner thread of the rectangular seat 12, and the upper end of the stud 13 is rotatably connected to an upper avoidance seat 14 through a bearing, and a uniformly distributed telescopic rod 15 is provided between the upper avoidance seat 14 and the lower avoidance seat 11;

[0022] It also includes a single chip microcomputer 2, which is arranged outside the horizontal frame 1, and the input end of the single chip microcomputer 2 is electrically connected to the external power supply;

[0023] A bidirectional lead screw 9 is rotatably connected to the interior of the slide groove through a bearing, and the slide seats 7 are threadedly connected to the bidirectional lead screw 9. A motor 3 10 is provided on the right side of the cross frame 1, and the input end of the motor 3 10 is electrically connected to the output end of the single-chip microcomputer 2, and the output shaft of the motor 3 10 is fixedly connected to the right end of the bidirectional lead screw 9. A motor 4 16 is provided on the upper side of the upper avoidance seat 14, and the input end of the motor 4 16 is electrically connected to the output end of the single-chip microcomputer 2, and the output shaft of the motor 4 16 is fixedly connected to the upper end of the stud 2 13. The relative inner sides of the lower avoidance seat 11 and the upper avoidance seat 14 are provided with evenly distributed rubber pads 17.

[0024] The detection mechanism 4 is slidably connected to the connecting frame 3. The detection mechanism 4 includes a lifting frame 41, a telescopic column 42, a spring 43, a detection seat 44, a rotating shaft 45, a contact seat 46, a pressure sensor 47, a motor 48 and an angle sensor 49. The lifting frame 41 is slidably connected to the connecting frame 3. The rear ends of the left and right sides of the lifting frame 41 are provided with detection seats 44 through evenly distributed telescopic columns 42 and springs 43. The springs 43 are movably connected to the outer ends of the adjacent telescopic columns 42. The interior of the detection seat 44 is provided with a bearing. A rotating shaft 45 is rotatably connected, a contact seat 46 is provided in the middle of the rotating shaft 45, and a uniformly distributed pressure sensor 47 is provided on the side of the contact seat 46 close to the center of the cross frame 1, and an angle sensor 49 is provided at the rear end of the rotating shaft 45. The angle sensor 49 and the pressure sensor 47 are both electrically connected to the single-chip computer 2 in both directions. A motor 48 is provided on the front side of the detection seat 44, and the input end of the motor 48 is electrically connected to the output end of the single-chip computer 2, and the output shaft of the motor 48 is fixedly connected to the front end of the adjacent rotating shaft 45.

[0025] Among them, a stud 1 5 is rotatably connected between the cross frame 1 and the connecting frame 3 through a bearing, and the stud 1 5 is threadedly connected to the lifting frame 41. A motor 2 6 is provided on the upper side of the connecting frame 3, and the input end of the motor 2 6 is electrically connected to the output end of the single-chip computer 2, and the output shaft of the motor 2 6 is fixedly connected to the upper end of the stud 1 5.

[0026] The working principle of the utility model is as follows:

[0027] When the taper surface of the plug valve is tested online, the initial state of the contact seat 46 is vertical. First, the upper avoidance seat 14 and the lower avoidance seat 11 are moved to the upper and lower outer ends of the plug, and the avoidance slots on the avoidance seat are used to avoid contact between the avoidance seat and the fixed ejector of the plug. Then, the inner bottom of the limit seat 8 is flush with the bottom end surface of the plug. Then, the single-chip microcomputer 2 starts the motor 3 10 so that its output shaft drives the bidirectional screw 9 to rotate. The bidirectional screw 9 is connected by threads so that the slide seat 7 drives the limit seat 8 to move closer to each other along the slide groove, thereby adjusting the plug. The bottom end surface is fixed by horizontal centering contact, and then the single chip computer 2 starts the motor 4 16 so that its output shaft drives the stud 2 13 to rotate. The stud 2 13 is threadedly connected with the rectangular seat 12, thereby driving the upper avoidance seat 14 to move vertically downward and contact the upper end surface of the plug. The telescopic end of the telescopic rod 15 moves adaptively with the upper avoidance seat 14, so that the upper and lower avoidance seats vertically squeeze and limit the plug, and then the device itself is axially fixedly connected with the plug online, and the rubber pad 17 is used to prevent the avoidance seat from sliding relative to the end surface contact part of the plug.

[0028] Subsequently, when the taper surface of the plug is measured online, the single chip microcomputer 2 starts the pressure sensor 47. The pressure sensor 47 measures the pressure value at this time through the internal detection element, and transmits the result to the single chip microcomputer 2 in the form of an electrical signal. Subsequently, the single chip microcomputer 2 starts the motor 48 so that its output shaft drives the corresponding rotating shaft 45 to rotate. The rotating shaft 45 drives the corresponding contact seat 46 to flip around its own axis to the taper surface of the plug. The motor 48 is a micro brake motor. After the motor 48 is powered on, the internal armature is electromagnetically attracted, so that the brake disc is in a rotatable state, and the motor The motor 48 rotates freely. When the power is off, the electromagnet loses power, and the armature is immediately held by the spring, so that the brake disc and the rear end cover of the motor are pressed together and stop rotating. The motor 48 has a self-locking function. At the same time, the single-chip microcomputer 2 starts the angle sensor 49. The angle sensor 49 adopts a high-performance integrated magnetic sensitive element and uses the non-contact characteristics of magnetic signal induction to measure the rotation angle of the rotating shaft 45, and transmits the measurement result to the single-chip microcomputer 2 in the form of an electrical signal. As the contact seat 46 fits the taper surface of the plug and turns, the pressure values ​​of the upper and lower pressure sensors 47 are continuously generated. When the contact seat 46 is turned over to the point where the pressure values ​​of the upper and lower pressure sensors 47 are the same, the contact seat 46 is in parallel contact with the taper surface of the plug. At this time, the single-chip computer 2 adds and subtracts the initial angle value of the contact seat 46 and the angle value at this time through the angle sensor 49, thereby obtaining the taper angle value of the taper. The operation is simple and convenient. During this process, as the contact seat 46 is turned over around the axis of the corresponding rotating shaft 45, the corresponding telescopic column 42 and the spring 43 are adaptively contracted through the detection seat 44, so that the pressure sensor 47 can be in elastic contact with the taper surface of the plug, and the taper is adjusted. So that the pressure sensor 47 always has a pressure reading, and then the single chip computer 2 starts the motor 2 6 so that its output shaft drives the stud 1 5 to rotate. The stud 1 5 is connected through a thread so that the lifting frame 41 indirectly drives the contact seat 46 to move vertically along the conical surface of the plug. The telescopic end of the telescopic column 42 and the spring 43 are elastically transformed. In this process, the pressure value difference between the upper and lower pressure sensors 47 when a single contact seat 46 moves vertically is determined, so as to determine whether the inclination angle of the conical surface of the plug is distributed in the same way as the measuring device moves vertically along the rotation, and then determine whether the inclination angle of the conical surface of the plug is qualified.

[0029] The utility model can automatically measure the taper surface of the plug online through the transmission element and the detection element, is easy to use, ensures the machining accuracy of the taper surface in the later stage of the taper, and has a high degree of automation.

[0030] It is worth noting that the single chip microcomputer 2 disclosed in the above embodiments can adopt MSP430, the pressure sensor 47 can adopt PCM303, the motor 1 48 can adopt HDWZ1-50 micro brake motor, the angle sensor 49 can adopt HSM22M multi-turn non-contact magnetic potentiometer, the motor 2 6, the motor 3 10 and the motor 4 16 can all adopt 130SZ01, and the single chip microcomputer 2 controls the pressure sensor 47, the motor 1 48, the angle sensor 49, the motor 2 6, the motor 3 10 and the motor 4 16 using methods commonly used in the prior art.

[0031] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An online measuring device for the cone surface of a plug valve, characterized in that: It comprises a horizontal frame (1) and a detection mechanism (4); The cross frame (1) is provided with a connecting frame (3) on its upper side, and a sliding groove provided on the rear side of the cross frame (1) is slidably connected with evenly distributed sliding seats (7), and the rear ends of the sliding seats (7) are provided with limit seats (8), and a lower avoidance seat (11) is provided on the lower side of the cross frame (1) through a fixed seat, and a rectangular seat (12) is provided on the upper side of the lower avoidance seat (11), and a stud (13) is connected to the inner thread of the rectangular seat (12), and the upper end of the stud (13) is rotatably connected with an upper avoidance seat (14) through a bearing, and evenly distributed telescopic rods (15) are provided between the upper avoidance seat (14) and the lower avoidance seat (11); Detection mechanism (4): It is slidably connected to the connection frame (3).

2. The on-line measuring device for the cone surface of a plug valve according to claim 1, characterized in that: It also comprises a single chip microcomputer (2), which is arranged outside the horizontal frame (1), and an input end of the single chip microcomputer (2) is electrically connected to an external power supply.

3. The on-line measuring device for the cone surface of a plug valve according to claim 2, characterized in that: The detection mechanism (4) comprises a lifting frame (41), a telescopic column (42), a spring (43), a detection seat (44), a rotating shaft (45), a contact seat (46), a pressure sensor (47), a motor (48) and an angle sensor (49). The lifting frame (41) is slidably connected to the connecting frame (3). The rear ends of the left and right sides of the lifting frame (41) are provided with detection seats (44) through evenly distributed telescopic columns (42) and springs (43). The springs (43) are movably sleeved with the outer ends of the adjacent telescopic columns (42). The interior of the detection seat (44) is rotatably connected to the connecting frame (3) through bearings. A rotating shaft (45) is provided with a contact seat (46) in the middle of the rotating shaft (45), a uniformly distributed pressure sensor (47) is provided on one side of the contact seat (46) close to the center of the cross frame (1), an angle sensor (49) is provided at the rear end of the rotating shaft (45), the angle sensor (49) and the pressure sensor (47) are bidirectionally electrically connected to the single chip computer (2), a motor (48) is provided at the front side of the detection seat (44), the input end of the motor (48) is electrically connected to the output end of the single chip computer (2), and the output shaft of the motor (48) is fixedly connected to the front end of the adjacent rotating shaft (45).

4. The on-line measuring device for the cone surface of a plug valve according to claim 3 is characterized in that: A stud one (5) is rotatably connected between the horizontal frame (1) and the connecting frame (3) via a bearing, the stud one (5) is threadedly connected to the lifting frame (41), a motor two (6) is provided on the upper side of the connecting frame (3), the input end of the motor two (6) is electrically connected to the output end of the single chip computer (2), and the output shaft of the motor two (6) is fixedly connected to the upper end of the stud one (5).

5. The on-line measuring device for the cone surface of a plug valve according to claim 2, characterized in that: A bidirectional lead screw (9) is rotatably connected to the interior of the slide groove via a bearing, and the slide seat (7) is threadedly connected to the bidirectional lead screw (9). A motor three (10) is arranged on the right side of the cross frame (1), and the input end of the motor three (10) is electrically connected to the output end of the single chip computer (2), and the output shaft of the motor three (10) is fixedly connected to the right end of the bidirectional lead screw (9).

6. The on-line measuring device for the cone surface of a plug valve according to claim 2, characterized in that: A motor four (16) is provided on the upper side of the upper avoidance seat (14), the input end of the motor four (16) is electrically connected to the output end of the single chip computer (2), and the output shaft of the motor four (16) is fixedly connected to the upper end of the stud two (13).

7. The on-line measuring device for the cone surface of a plug valve according to claim 1, characterized in that: The relative inner sides of the lower avoidance card seat (11) and the upper avoidance card seat (14) are both provided with uniformly distributed rubber pads (17).

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