A vibration detection device

Abstract

This application discloses a runout detection device, including a base, with a first upright and a second upright arranged on the left and right sides above the base; a rotation drive mechanism, which includes two rollers arranged in the same direction rotating between the first and second uprights and a synchronous drive unit located on the left side of the first upright and connected to the two rollers respectively; and a runout detection mechanism, which includes a telescopic drive unit mounted on the first upright and a laser displacement sensor mounted on the telescopic part of the telescopic drive unit. The runout detection device provided in this application enables the valve stem to rotate automatically by driving the two rollers to rotate in the same direction through the synchronous drive unit, and enables the valve stem to rotate at multiple positions by moving the laser displacement sensor through the telescopic drive unit. Compared with the prior art, it can not only achieve batch detection and save manpower, but also provide more intuitive detection results that can completely reflect the change law of the valve stem runout value, and has strong practicality.

Description

Technical Field

[0001] This utility model relates to the field of valve stem detection technology, and specifically discloses a vibration detection device. Background Technology

[0002] Control valves belong to the category of control valves. Their main function is to regulate parameters such as pressure, flow rate, and temperature of the medium. They are the final control element in the process loop and are widely used in the petrochemical industry.

[0003] In applications such as coal chemical industry, the good mechanical properties of valves play a crucial role in the control accuracy of regulating valves. Therefore, the fitting accuracy of each component during valve assembly is very important. The valve stem is an important component of the regulating valve. In order to ensure a close fit with the valve core later, the runout of the outer circle of the valve stem must be tested after the valve stem is machined.

[0004] Existing technologies for valve stem runout detection mostly rely on manual methods, requiring manual rotation of the valve stem and multiple tests with comparisons to determine its quality. This type of detection is inefficient, cannot achieve batch testing, wastes manpower, and the results are not intuitive enough to fully reflect the variation pattern of the valve stem runout value. Furthermore, many factors can affect the test, leading to inaccurate test data.

[0005] To address the aforementioned problems, this application discloses a vibration detection device. Utility Model Content

[0006] To overcome the shortcomings of the existing technology, this utility model discloses a vibration detection device.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is: a vibration detection device, comprising:

[0008] A base, with a first upright and a second upright arranged on the left and right sides above the base;

[0009] A rotation drive mechanism, comprising two rollers arranged to rotate in the same direction between a first and a second stand, and a synchronous drive unit located on the left side of the first stand and connected to the two rollers respectively.

[0010] The vibration detection mechanism includes a telescopic drive unit mounted on a first stand and a laser displacement sensor mounted on the telescopic part of the telescopic drive unit.

[0011] Further preferably, it also includes two rotating guide units disposed on the base between the first and second uprights. The rotating guide unit includes a lifting pneumatic slide on the base, a telescopic pneumatic slide on the transverse part of the lifting pneumatic slide, a Y-shaped bracket on the telescopic pneumatic slide, and a guide wheel inside the Y-shaped bracket.

[0012] More preferably, the synchronous drive unit includes a third stand on the base to the left of the first stand, a power motor to the left of the third stand with its output shaft passing through the third stand to the right, a first gear mounted on the output shaft of the power motor to the right of the third stand, and two second gears respectively mounted on two rollers and meshing with the first gear.

[0013] More preferably, the left side of the base is provided with an outer cover covering the synchronous drive unit, and the outer cover is provided with a control switch that is connected to the power motor of the synchronous drive unit.

[0014] More preferably, the telescopic drive unit includes a stepper screw motor located on the left side of the first stand and having its screw shaft pass through the first stand, and a telescopic seat located on the right side of the first stand and connected to the screw shaft of the stepper screw motor.

[0015] More preferably, the telescopic seat has an internal mounting cavity, and the laser displacement sensor is fixed to one side wall of the mounting cavity by screws, facing the center point of the line connecting the two rollers.

[0016] More preferably, the first stand has two guide sleeves inside, and the telescopic seat has two guide posts on the side facing the first stand, which are respectively inserted into the two guide sleeves.

[0017] More preferably, the first and second supports are each provided with two bearings inside, and the roller cores at both ends of the two roller shafts are respectively inserted into the inner rings of the four bearings.

[0018] This utility model achieves the following beneficial effects:

[0019] The runout detection device provided in this application enables the valve stem to rotate automatically by driving two rollers to rotate in the same direction through a synchronous drive unit, and can rotate the valve stem at multiple positions by driving the laser displacement sensor to move through a telescopic drive unit. Compared with the prior art, it can not only achieve batch detection and save manpower, but also provide more intuitive detection results that can fully reflect the change law of the valve stem runout value, and has strong practicality.

[0020] Other features and advantages of this invention will be set forth in the following description and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention can be realized and obtained through the structures pointed out in the description and the accompanying drawings. Attached Figure Description

[0021] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the present invention and, together with the specification, serve to explain the principles of the disclosure.

[0022] Figure 1 This is a schematic diagram of the overall structure disclosed in this utility model;

[0023] Figure 2 This is a schematic diagram of a preferred embodiment of the present utility model.

[0024] Figure 3 This is a schematic diagram of the guide wheel mounting structure disclosed in this utility model;

[0025] Figure 4 This is a schematic diagram of the rotation drive mechanism structure disclosed in this utility model;

[0026] Figure 5 This is a schematic diagram of the vibration detection mechanism disclosed in this utility model;

[0027] In the diagram: 10. Base;

[0028] 20. First standing position;

[0029] 30. Second standing position;

[0030] 40. Rotary drive mechanism; 41. Roller shaft; 42. Synchronous drive unit; 421. Third support; 422. Power motor; 423. First gear; 424. Second gear;

[0031] 50. Runout detection mechanism; 51. Telescopic drive unit; 511. Stepper screw motor; 512. Telescopic seat; 5121. Mounting cavity; 513. Guide sleeve; 514. Guide post; 52. Laser displacement sensor;

[0032] 60. Rotating guide unit; 61. Lifting pneumatic slide; 62. Telescopic pneumatic slide; 63. Y-shaped bracket; 64. Guide wheel;

[0033] 70. Outer cover;

[0034] 80. Control switch;

[0035] 90. Bearings. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0037] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around" and other terms indicating orientation or positional relationship are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0038] Example

[0039] To address the shortcomings of existing technologies, reference Figures 1-5 As shown, this application discloses a jump detection device, comprising:

[0040] The base 10 has a first upright 20 and a second upright 30 arranged on the left and right sides above it.

[0041] The rotation drive mechanism 40 includes two rollers 41 arranged to rotate in the same direction between the first support 20 and the second support 30, and a synchronous drive unit 42 located on the left side of the first support 20 and connected to the two rollers 41 respectively. Under the drive of the synchronous drive unit 42, the two rollers 41 will move in the same direction. In actual use, the valve stem will be placed between the two rollers 41. When the synchronous drive unit 42 drives the two rollers 41 to move in the same direction, the valve stem will also rotate.

[0042] The runout detection mechanism 50 includes a telescopic drive unit 51 mounted on the first stand 20 and a laser displacement sensor 52 mounted on the telescopic part of the telescopic drive unit 51. When the valve stem rotates on the two rollers 41, the telescopic drive unit 51 drives the laser displacement sensor 52 to move along the direction of the valve stem, and the laser displacement sensor 52 detects the runout of the valve stem at various positions.

[0043] Note that the laser displacement sensor 52 referred to here can be an HGC1050 sensor.

[0044] In a preferred embodiment, to ensure the rotational stability of the valve stem, this application further includes two rotational guide units 60 disposed on the base 10 between the first support 20 and the second support 30. Each rotational guide unit 60 includes a lifting pneumatic slide 61 disposed on the base 10, a telescopic pneumatic slide 62 disposed on the transverse portion of the lifting pneumatic slide 61, a Y-shaped bracket 63 disposed on the telescopic pneumatic slide 62, and a guide wheel 64 disposed inside the Y-shaped bracket 63. When the valve stem is placed in position, the two lifting pneumatic slides 61 of the two rotational guide units 60 drive the two telescopic pneumatic slides 62 to rise and fall into position. The two telescopic pneumatic slides 62 drive the two Y-shaped brackets 63 to extend and make the two guide wheels 64 contact the valve stem. When the valve stem rotates, it can guide it, which has strong practicality.

[0045] In this embodiment, the synchronous drive unit 42 of this application includes a third stand 421 disposed on the base 10 on the left side of the first stand 20, a power motor 422 disposed on the left side of the third stand 421 and having its output shaft pass through the third stand 421 to the right, a first gear 423 mounted on the output shaft of the power motor 422 on the right side of the third stand 421, and two second gears 424 respectively mounted on two rollers 41 and meshing with the first gear 423. When the power motor 422 drives the first gear 423 to rotate, the two first gears 423 will rotate in opposite directions under the drive of the first gear 423. In this way, the two rollers 41 will rotate in opposite directions and frictionally drive the valve stem to rotate.

[0046] In order to control the start and stop of the power motor 422, this application provides an outer cover 70 covering the synchronous drive unit 42 on the left side of the base 10. The outer cover 70 is provided with a control switch 80 which is connected to the power motor 422 of the synchronous drive unit 42. When the operator presses the control switch 80 for the first time, the power motor 422 will drive the first gear 423 to rotate. Conversely, when the operator presses the control switch 80 for the second time, the power motor 422 will stop driving the first gear 423 to rotate.

[0047] In this embodiment, the telescopic drive unit 51 of this application includes a stepper screw motor 511 located on the left side of the first stand 20 and having its screw shaft pass through the first stand 20, and a telescopic seat 512 located on the right side of the first stand 20 and connected to the screw shaft of the stepper screw motor 511. Based on this, this application provides an installation cavity 5121 inside the telescopic seat 512. The laser displacement sensor 52 is fixed to one side wall of the installation cavity 5121 by screws and is directly opposite the center point of the line connecting the two rollers 41. Under the drive of the stepper screw motor 511, the telescopic seat 512 will move telescopically above the valve stem. At this time, the laser displacement sensor 52 located below the telescopic seat 512 will detect the valve stem. In order to ensure that the telescopic seat 512 can move stably, this application also provides two guide sleeves 513 inside the first stand 20. Two guide posts 514 are provided on the side of the telescopic seat 512 facing the first stand 20 and are respectively inserted into the two guide sleeves 513.

[0048] To ensure the smooth rotation of the two roller shafts 41, this application provides two bearings 90 inside the first support 20 and the second support 30 respectively, and the roller cores at both ends of the two roller shafts 41 are respectively inserted into the inner rings of the four bearings 90.

[0049] In the description of this specification, the references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0050] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A vibration detection device, characterized in that, include: A base, with a first upright and a second upright arranged on the left and right sides above the base; A rotation drive mechanism, comprising two rollers arranged to rotate in the same direction between a first and a second stand, and a synchronous drive unit located on the left side of the first stand and connected to the two rollers respectively. The vibration detection mechanism includes a telescopic drive unit mounted on a first stand and a laser displacement sensor mounted on the telescopic part of the telescopic drive unit.

2. A beat detection apparatus according to claim 1, wherein It also includes two rotating guide units disposed on the base between the first and second uprights. The rotating guide unit includes a lifting pneumatic slide on the base, a telescopic pneumatic slide on the transverse part of the lifting pneumatic slide, a Y-shaped bracket on the telescopic pneumatic slide, and a guide wheel inside the Y-shaped bracket.

3. The beat detection apparatus of claim 1, wherein The synchronous drive unit includes a third stand on the base to the left of the first stand, a power motor to the left of the third stand with its output shaft passing through the third stand to the right, a first gear mounted on the output shaft of the power motor to the right of the third stand, and two second gears mounted on two rollers and meshing with the first gear.

4. The beat detection apparatus of claim 1, wherein The base has an outer cover on its left side that covers the synchronous drive unit. The outer cover has a control switch that is connected to the power motor of the synchronous drive unit.

5. The beat detection apparatus of claim 1, wherein The telescopic drive unit includes a stepper screw motor located on the left side of the first stand and having its screw shaft pass through the first stand, and a telescopic seat located on the right side of the first stand and connected to the screw shaft of the stepper screw motor.

6. A beat detection apparatus according to claim 5, wherein The telescopic seat has an internal mounting cavity, and the laser displacement sensor is fixed to one side wall of the mounting cavity by screws, facing the center point of the line connecting the two rollers.

7. A beat detection apparatus according to claim 5, wherein The first stand has two guide sleeves inside, and the telescopic seat has two guide posts on the side facing the first stand, which are respectively inserted into the two guide sleeves.

8. The vibration detection device according to claim 1, characterized in that, The first and second supports are each equipped with two bearings inside, and the roller cores at both ends of the two roller shafts are respectively inserted into the inner rings of the four bearings.

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