Probe packaging and positioning tool for vortex shedding flowmeter

Abstract

The utility model relates to a vortex shedding flowmeter probe packaging and positioning tool, which belongs to the technical field of vortex shedding flowmeters, and comprises a base, a support is connected onto the base through a support fixing screw, a fixing hole is arranged on the support, a probe shell is inserted into the fixing hole, and the probe shell is connected with the base through the support fixing screw. The lower end of the probe shell is connected with a flat tail, the base is provided with a V-shaped groove, the flat tail and the V-shaped groove correspond to each other in position and are matched with each other, an insulating part is arranged in the probe shell, a detection element is inserted in the probe shell and is fixed by the insulating part, and a spinning roller is arranged on the support. The height of the support is adjusted by adjusting the tightness of the support screw, the flat tail of the probe shell is ensured to be inserted into the V-shaped groove of the base so as to determine the positioning of the flat tail of the probe shell, and then the flat tail is fixed in the vortex street probe shell through the insulating material, so that a probe detection element is insulated from the shell. The probe detection elements are inserted into the probe shell for consistent depths.

Description

Technical Field

[0001] The utility model belongs to the technical field of vortex flow meters, and particularly relates to a positioning tool for encapsulating a probe of a vortex flow meter. Background Art

[0002] Vortex flow meters are mainly used for measuring the flow of gas, liquid, and steam medium fluids in pipelines in various industries. The characteristics of vortex flow meters are small pressure loss, large measuring range, high accuracy. When measuring the volumetric flow under working conditions, it is hardly affected by parameters such as fluid density, pressure, temperature, and viscosity. There are no moving mechanical parts, so it has high reliability, low maintenance volume, and the instrument parameters can be stable for a long time. Vortex flow meters use piezoelectric sensors. At present, most vortex flow meters in the market use long strip-shaped piezoelectric ceramics as signal measurement elements. The quality of the encapsulation of the piezoelectric ceramic elements determines the strength and stability of the signal. In the actual vortex probe encapsulation process, if only relying on the experience of workers to encapsulate the detection elements of the vortex probe, it is difficult to achieve the same depth of insertion of the detection elements of the vortex probe into the probe housing and the parallel consistency between the detection elements of the vortex probe and the flat tail of the housing. Content of the Utility Model

[0003] The purpose of the utility model is to provide a positioning tool for encapsulating a probe of a vortex flow meter with a simple structure and reasonable design in order to solve the above problems.

[0004] The utility model realizes the above purpose through the following technical solutions:

[0005] A positioning tool for encapsulating a probe of a vortex flow meter includes a base. A bracket is connected to the base by a bracket fixing screw. There are fixing holes on the bracket. A probe housing is inserted into the fixing holes. A flat tail is connected to the lower end of the probe housing. There is a V-shaped groove on the base. The flat tail and the V-shaped groove are in corresponding positions and cooperate with each other. An insulating part is installed in the probe housing. A detection element is inserted into the probe housing and fixed by the insulating part. There is a rotating wheel on the bracket.

[0006] As a further optimized scheme of the utility model, there is an insulating square groove on the insulating part. The insulating square groove and the detection element are in corresponding positions and cooperate with each other. There is an insulating part wire slot on the insulating part.

[0007] As a further optimized scheme of the utility model, a plug post is connected under the rotating wheel. There is a U-shaped groove opened on the upper part of the detection element. The U-shaped groove and the plug post are in corresponding positions and cooperate with each other.

[0008] As a further optimized scheme of the utility model, there is a clamping groove on the bracket. There is a clamping block on the rotating wheel. The clamping groove and the clamping block are in corresponding positions and cooperate with each other.

[0009] As a further optimization solution of the present utility model, a piezoelectric ceramic sheet is installed inside the probe housing, and the wiring of the detection element is electrically connected to the piezoelectric ceramic sheet through the insulating part wiring groove.

[0010] As a further optimization solution of the present utility model, the upper end of the detection element corresponds to the position of the opening of the probe housing.

[0011] The beneficial effects of the present utility model are as follows:

[0012] 1. By adjusting the tightness of the bracket screws, the height of the bracket is adjusted to ensure that the flat tail of the probe housing is inserted into the V-shaped groove of the base, thereby determining the positioning of the flat tail of the probe housing. Then, it is fixed inside the vortex street probe housing through insulating materials, so that the probe detection element is insulated from the housing, and the insertion depth of the probe detection element into the probe housing is consistent.

[0013] 2. The flat tail of the vortex street probe is fixed through the V-shaped groove on the base, and the main body of the vortex street probe housing is fixed by the bracket. The height of the bracket is adjusted by using the U-shaped groove on the bracket and the base screws. The adjustment of the height can meet the encapsulation of vortex street probe housings with different lengths. Description of the Drawings

[0014] Figure 1 is an exploded view of a vortex flowmeter probe encapsulation positioning tooling of the present utility model;

[0015] Figure 2 is a cross-sectional view of the internal structure of a vortex flowmeter probe encapsulation positioning tooling of the present utility model;

[0016] Figure 3 is a structural diagram of an insulating part of a vortex flowmeter probe encapsulation positioning tooling of the present utility model.

[0017] In the figure: 1. Base; 2. Bracket; 3. Probe housing; 4. Insulating part; 5. Detection element; 6. Rotating wheel; 7. Bracket fixing screw; 8. Inserting post; 9. Insulating square groove; 10. Insulating part wiring groove; 11. Flat tail; 12. V-shaped groove; 13. Card slot; 14. Card block; 15. Piezoelectric ceramic sheet; 16. U groove. Specific Embodiments

[0018] The following further describes the present application in detail with reference to the drawings. It is necessary to point out here that the following specific embodiments are only used to further illustrate the present application and cannot be understood as limiting the protection scope of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0019] Embodiment

[0020] As Figure 1 、 Figure 2 、Figure 3 As shown in the figure, a positioning tooling for encapsulating a vortex flowmeter probe includes a base 1. A bracket 2 is connected to the base 1 through a bracket fixing screw 7. The bracket 2 is provided with a fixing hole, and a probe housing 3 is inserted into the fixing hole. A flat tail 11 is connected to the lower end of the probe housing 3. A V-shaped groove 12 is provided on the base 1. The flat tail 11 corresponds to the V-shaped groove 12 in position and is mutually matched. By adjusting the tightness of the bracket fixing screw 7, the height of the bracket 2 is adjusted to ensure that the flat tail 11 of the probe housing 3 is inserted into the V-shaped groove 12 of the base 1, thereby determining the positioning of the flat tail 11 of the probe housing 3. An insulating part 4 is installed in the probe housing 3, and a detection element 5 is inserted into the probe housing 3 and fixed by the insulating part 4. A rotating wheel 6 is provided on the bracket 2.

[0021] The insulating part 4 is provided with an insulating square groove 9, and the insulating square groove 9 corresponds to the detection element 5 in position and is mutually matched. The insulating part 4 is provided with an insulating part wire slot 10. The insulation between the detection element 5 and the probe housing 3 is relatively good, and the standard needs to reach 500 MΩ or more. An insertion post 8 is connected below the rotating wheel 6. A U-shaped groove 16 is opened at the upper part of the detection element 5, and the U-shaped groove 16 corresponds to the insertion post 8 in position and is mutually matched. A clamping groove 13 is provided on the bracket 2, and a clamping block 14 is provided on the rotating wheel 6. The clamping groove 13 corresponds to the clamping block 14 in position and is mutually matched, so as to finely adjust the position and direction of the detection element 5 in the probe housing 3. A piezoelectric ceramic sheet 15 is installed in the probe housing 3. The wire arrangement of the detection element 5 is electrically connected to the piezoelectric ceramic sheet 15 through the insulating part wire slot 10. The upper end of the detection element 5 corresponds to the opening of the probe housing 3.

[0022] When in use, first insert the probe housing 3 into the fixing hole of the bracket 2. By adjusting the tightness of the bracket fixing screw 7, the height of the bracket 2 is adjusted to ensure that the flat tail 11 at the bottom of the probe housing 3 is inserted into the V-shaped groove 12 of the base 1, thereby determining the positioning of the flat tail 11 on the probe housing 3. Then insert the detection element 5 into the insulating part square groove 9, connect the wire arrangement to the piezoelectric ceramic sheet 15 through the insulating part wire slot 10, and then insert it into the probe housing 3. The insulation between the detection element 5 and the probe housing 3 reaches 500 MΩ or more. In addition, the consistency of the insertion depth of the detection element 5 into the probe housing 3 is determined. Then insert the insertion post 8 on the rotating wheel 6 into the U-shaped groove of the vibrating piece of the detection element 5 to adjust the direction of the detection element 5, so that the detection element 5 is parallel to the flat tail 11 at the bottom of the probe housing 3, thereby achieving the best state of the signal strength and signal stability of the detection element 5, completing the positioning work of the positioning tooling for encapsulating the flowmeter sensor probe, and encapsulating the positioned workpiece with insulating glue to solve the performance consistency in the encapsulation process of the vortex probe, ensure that the insertion depth into the vortex probe housing 3 is consistent, and the detection element 5 of the vortex probe is parallel to the flat tail 11 of the housing, achieving the best encapsulation performance.

[0023] The above-described embodiments merely represent several implementation manners of the present utility model. The description thereof is relatively specific and detailed, but it should not be construed as a limitation to the scope of the patent of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several variations and improvements can still be made, and these all fall within the protection scope of the present utility model.

Claims

1. A vortex flowmeter probe encapsulation and positioning tooling, comprising a base (1), characterized in that: A bracket (2) is connected to the base (1) through a bracket fixing screw (7). The bracket (2) is provided with fixing holes, and a probe housing (3) is inserted into the fixing holes. A flat tail (11) is connected to the lower end of the probe housing (3). The base (1) is provided with a V-shaped groove (12), and the flat tail (11) is in corresponding position and cooperation with the V-shaped groove (12). An insulating member (4) is installed in the probe housing (3), and a detection element (5) is inserted into the probe housing (3) and fixed by the insulating member (4). A rotating wheel (6) is provided on the bracket (2).

2. The positioning tool for the probe package of a vortex flowmeter according to claim 1, characterized in that: The insulating member (4) is provided with an insulating square groove (9), and the insulating square groove (9) is in corresponding position and cooperation with the detection element (5). The insulating member (4) is provided with an insulating member wire slot (10).

3. The vortex flowmeter probe packaging and positioning tooling according to claim 1, characterized in that: An insertion post (8) is connected below the rotating wheel (6). A U-shaped groove (16) is formed in the upper part of the detection element (5), and the U-shaped groove (16) is in corresponding position and cooperation with the insertion post (8).

4. The positioning tool for encapsulating a vortex flowmeter probe according to claim 2, characterized in that: The bracket (2) is provided with a clamping groove (13), and the rotating wheel (6) is provided with a clamping block (14), and the clamping groove (13) is in corresponding position and cooperation with the clamping block (14).

5. A vortex flowmeter probe packaging and positioning tooling according to claim 1, characterized in that: A piezoelectric ceramic sheet (15) is installed in the probe housing (3), and the wire arrangement of the detection element (5) is electrically connected to the piezoelectric ceramic sheet (15) through the insulating member wire slot (10).

6. A vortex flowmeter probe encapsulation and positioning tooling according to claim 1, characterized in that: The upper end of the detection element (5) corresponds to the opening of the probe housing (3).

Images