Support for calibrating tuning fork type on-line densimeter

Abstract

A support for calibration of a tuning fork type online densimeter comprises a base and a support body fixedly installed on the base, a housing is fixedly installed on the side wall of the support body, a lifting mechanism is installed in the housing and comprises a servo motor, and the output end of the servo motor is connected with a ball screw arranged in the vertical direction through a flexible coupler. A movable nut of the ball screw is connected with a supporting plate, a tray is mounted at the end part of the supporting plate, a mounting hole for mounting the tuning fork type online densimeter is formed in the tray, a through hole corresponding to the mounting hole is formed in the supporting plate, an adjusting bolt is arranged on the bottom surface of the supporting plate, and the adjusting bolt penetrates through the supporting plate and is propped against the tray. According to the utility model, the height of the tuning fork type on-line densimeter can be adjusted according to the length of the sensor at the lower end of the tuning fork type on-line densimeter, so that the tuning fork type on-line densimeter can meet the calibration requirements of tuning fork type on-line densimeters with different sizes.

Description

Technical Field

[0001] This utility model relates to the field of tuning fork online density meters, and in particular to a bracket for calibrating a tuning fork online density meter. Background Technology

[0002] A tuning fork online density meter is an instrument that measures the density of liquids based on the principle of vibration. The density of a liquid follows a certain law with its vibration frequency. By measuring the vibration frequency, the density of the liquid is obtained. Since there is a certain relationship between the density and concentration of a liquid, the concentration can be indirectly calculated by measuring the density. It has advantages such as simple installation, plug-and-play functionality, and maintenance-free operation, and is therefore widely used in continuous online measurement and control of production processes. Its accuracy directly affects production quality. A calibration stand for a tuning fork online density meter is used during calibration. Tuning fork online density meters are relatively large and heavy. During calibration, the lower sensor needs to be vertically and stably immersed in the liquid being measured. In practical applications, the length of the lower sensor varies depending on the installation dimensions required. Therefore, a suitable stand is needed to fix it in place and to meet the calibration needs of different types of tuning fork online density meters. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a support for calibrating a tuning fork-type online density meter, so as to solve the technical problems involved in the background art.

[0004] The objective of this utility model is achieved through the following technical solution:

[0005] A calibration bracket for a tuning fork-type online density meter includes a base and a support fixedly mounted on the base. A cover is fixedly mounted on the side wall of the support, and a lifting mechanism is installed inside the cover. The lifting mechanism includes a servo motor, and the output end of the servo motor is connected to a ball screw arranged in a vertical direction via a flexible coupling. A support plate is connected to the movable nut of the ball screw, and a tray is installed at the end of the support plate. The tray has mounting holes for mounting the tuning fork-type online density meter, and the support plate has through holes corresponding to the mounting holes. An adjusting bolt is provided on the bottom surface of the support plate, and the adjusting bolt passes through the support plate and abuts against the tray.

[0006] In the above-mentioned utility model, the support plate further includes a reinforcing plate and an mounting plate and a lifting plate integrally formed on the two side walls of the reinforcing plate, respectively. The reinforcing plate is placed on the outside of the cover, and the cover is provided with a sliding groove. The mounting plate passes through the sliding groove and is fixedly connected to the movable nut of the ball screw.

[0007] Furthermore, in the above-mentioned utility model, the reinforcing plate has a guide plate symmetrically arranged along the mounting plate on the side wall of the mounting plate side, and the cover has a guide groove that cooperates with the guide plate.

[0008] Furthermore, in the above-mentioned utility model, the adjusting bolts include three adjusting bolts, which are arranged in a circumferential array along the mounting holes of the support plate.

[0009] Furthermore, in the above-mentioned utility model, the bottom surface of the base is provided with a horizontal adjustment foot for adjusting the levelness of the base.

[0010] The beneficial effects of this utility model are: this utility model can adjust the height of the tuning fork online density meter according to the length of the lower sensor of the tuning fork online density meter, thereby making it meet the calibration requirements of tuning fork online density meters of different sizes. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 This is a top view of the present invention;

[0013] Figure 3 for Figure 2 BB cross-sectional view;

[0014] Figure 4 for Figure 1 A magnified view of part A in the middle.

[0015] In the diagram, 1-base, 2-bracket, 3-cover, 4-servo motor, 5-flexible coupling, 6-ball screw, 7-movable nut, 8-support plate, 9-tray, 10-adjusting bolt, 11-level adjustment foot, 8.1-reinforcing plate, 8.2-mounting plate, 8.3-lifting plate, 8.4-through hole, 9.1-mounting hole. Detailed Implementation

[0016] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that, unless otherwise specified, the following embodiments and features described therein can be combined with each other.

[0017] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the drawings only show the components related to the present invention and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0018] Example:

[0019] A calibration stand for a tuning fork-type online density meter, see attached document. Figure 1 - Appendix Figure 3 As shown, the system includes a base 1 and a bracket 2 fixedly mounted on the base 1. A horizontal adjustment foot 11 for adjusting the levelness of the base 1 is provided on the bottom surface of the base 1. A cover 3 is fixedly mounted on the side wall of the bracket 2. A lifting mechanism is installed inside the cover 3. The lifting mechanism includes a servo motor 4. The output end of the servo motor 4 is connected to a ball screw 6 arranged vertically via a flexible coupling 5. A support plate 8 is connected to the movable nut 7 of the ball screw 6. The support plate 8 can rise or fall along the ball screw 6 together with the movable nut 7 as the servo motor 4 rotates. A tray 9 is installed at the end of the support plate 8. The tray 9 has a mounting hole 9.1 for mounting a tuning fork-type online density meter, and a through hole 8.4 corresponding to the mounting hole 9.1. When the tuning fork-type online density meter is installed on the tray 9, the sensor at the lower end of the tuning fork-type online density meter can pass vertically through the mounting hole 9.1 and the through hole 8.4. Adjusting bolts 10 are provided on the bottom surface of the tray 8, and the adjusting bolts 10 pass through the tray 8 and abut against the tray 9. Specifically, the adjusting bolts 10 include three adjusting bolts, which are distributed in a circumferential array along the mounting holes 8.4 of the tray 8. After the tuning fork online density is installed on the tray 9, the contact height between the top of the adjusting bolts 10 and the tray is adjusted by rotating the three adjusting bolts 10, thereby adjusting the levelness of the installed tuning fork online density.

[0020] For further details, please refer to the appendix. Figure 4 As shown, the support plate 8 includes a reinforcing plate 8.1 and mounting plates 8.2 and lifting plates 8.3, which are integrally formed on the two side walls of the reinforcing plate 8.1, respectively. The reinforcing plate 8.1 is located outside the cover 3, and the tray 9 is placed on the end of the lifting plate 8.3. The cover 3 is provided with a sliding groove 3.1. The mounting plate 8.2 passes through the sliding groove 3.1 and is fixedly connected to the movable nut 7 of the ball screw 6. When the support plate 8 moves up and down along the ball screw 6 as a whole, the mounting plate 8.2 of the support plate 8 can slide up and down along the sliding groove 3.1.

[0021] Furthermore, the reinforcing plate 8.1 has a guide plate (not shown in the figure) symmetrically arranged along the mounting plate 8.2 on the side wall of the mounting plate 8.2. The cover 3 has a guide groove 3.2 that cooperates with the guide plate. When the entire support plate 8 moves up and down along the sliding groove 3.1, the guide plate (not shown in the figure) and the guide groove 3.2 can guide the support plate 8 and enhance the stability of the support plate 8 during the up and down movement.

[0022] In practical application, this utility model utilizes a level to adjust the leveling feet 11 to adjust the levelness of the base 1. Then, based on the dimensions of the tuning fork online density meter, the servo motor 4 is rotated to adjust the vertical height of the tray 8. Next, the tuning fork online density meter is installed on the tray 9, with the sensor at the lower end of the meter passing through the mounting hole 9.1 and the through hole 8.4. The levelness of the tuning fork online density meter is further adjusted by rotating the three adjusting bolts 10 using a level. Finally, a container filled with liquid is placed below the tuning fork online density meter, and the servo motor 4 is rotated to immerse the sensor in the liquid to measure its density. The measured result is then compared with a standard value to calibrate the tuning fork online density meter.

[0023] The embodiments described above merely illustrate specific implementations of this utility model, and while the descriptions are detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A bracket for calibrating a tuning fork-type online density meter, characterized in that, The device includes a base and a bracket fixedly mounted on the base. A cover is fixedly mounted on the side wall of the bracket. A lifting mechanism is installed inside the cover. The lifting mechanism includes a servo motor. The output end of the servo motor is connected to a ball screw arranged in a vertical direction via a flexible coupling. A support plate is connected to the movable nut of the ball screw. A tray is installed at the end of the support plate. The tray is provided with mounting holes for mounting a tuning fork type online density meter. The support plate is provided with through holes corresponding to the mounting holes. An adjusting bolt is provided on the bottom surface of the support plate. The adjusting bolt passes through the support plate and abuts against the tray.

2. The support for calibrating a tuning fork-type online density meter according to claim 1, characterized in that, The support plate includes a reinforcing plate and an mounting plate and a lifting plate, which are integrally formed on the two side walls of the reinforcing plate. The reinforcing plate is placed on the outside of the cover. The cover is provided with a sliding groove. The mounting plate passes through the sliding groove and is fixedly connected to the movable nut of the ball screw.

3. The support for calibrating a tuning fork-type online density meter according to claim 2, characterized in that, The reinforcing plate has guide plates symmetrically arranged along the mounting plate on one side wall of the mounting plate, and the cover has guide grooves that cooperate with the guide plates.

4. The support for calibrating a tuning fork-type online density meter according to claim 1, characterized in that, The adjusting bolts include three adjusting bolts, which are arranged in a circumferential array along the mounting holes of the support plate.

5. A calibration bracket for a tuning fork-type online density meter according to claim 1, characterized in that, The base is provided with leveling feet on its bottom surface for adjusting the base's levelness.

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