Mounting device, clamped ultrasonic transducer and clamped ultrasonic measuring device

Abstract

The invention relates to a mounting device (10) designed to mount an ultrasonic transducer (20) on a media conducting line (40), comprising: a rocker (11) having a first end (11.1), a second end (11.2) and a swivel bearing (11.3) therebetween; a base (12) on which the rocker is mounted by means of the swivel bearing and on which the rocker is fastened in terms of transverse movement and vertical movement, the base having at least two fastening supports (12.1) for fastening means for fastening the base to the pipeline; the first end of the rocker has a coupling body support (13) which is designed to exert a force on the coupling body of the ultrasonic transducer in the direction of a first mounting device side (10.1) facing the direction of the line, and the second end of the rocker has a housing (14) for linearly guiding an impression (15), the stamp is designed to exert a force on the base in the direction of the first side by means of a first end of the stamp (15.1).

Description

Field of the Invention

[0001] The present invention relates to a mounting device configured to mount a clamping ultrasonic transducer, to a clamping ultrasonic transducer, and to a clamping ultrasonic measuring device for measuring a measured variable of a medium flowing through a pipeline. Background Art

[0002] A clamping ultrasonic measuring device such as that shown in DE102016119910A1 has an ultrasonic transducer fastened to the outside of a medium conveying pipeline. Generally, fastening strips or straps are used to fasten such ultrasonic transducers. However, this may cause the ultrasonic transducer to shift during fastening. Summary of the Invention

[0003] The object of the present invention can be regarded as providing a simple and durable mounting for a clamping ultrasonic transducer.

[0004] This object is achieved by the mounting device according to independent claim 1, the clamping ultrasonic transducer according to independent claim 7, and the clamping ultrasonic measuring device according to independent claim 9.

[0005] The mounting device designed according to the present invention for mounting an ultrasonic transducer on a medium conveying pipeline includes: A rocker having a first end, a second end, and a rotary bearing therebetween; A base on which the rocker is mounted by means of the rotary bearing and is fastened in terms of lateral movement and vertical movement, wherein the base has at least one fastening support for a fastening device for fastening the base to the pipeline; wherein the first end of the rocker has a coupling body support configured to apply a force to the coupling body of the ultrasonic transducer in the direction of the first side of the mounting device facing the pipeline, wherein the second end of the rocker has a linearly guided stamp, and wherein the stamp is configured to apply a force to the base in the direction of the first side by means of the first end of the stamp.

[0006] By fastening the base and the clamping ultrasonic transducer separately, the mounting device can be first positioned and fastened, and then the ultrasonic transducer can be fixed to the pipeline. By applying a force to the base using the stamp, when the clamping ultrasonic transducer is positioned, the first end of the rocker moves towards the pipeline, thereby applying a corresponding contact pressure to the clamping ultrasonic transducer.

[0007] In one embodiment, the impression die is guided in a housing, wherein the housing includes: a housing can, which is arranged on a first side of the housing facing the pipeline and has a first opening arranged in the center, a housing cover, which is arranged on a side of the housing facing away from the pipeline and has a second opening arranged in the center, an impression die sleeve for radially supporting the impression die, the impression die sleeve having an open first end, wherein the impression die can move in the impression die sleeve along a sleeve axis, wherein a first end of the impression die extends through the first opening of the housing and projects from the open first end of the impression die sleeve, wherein the housing cover has an internal thread in the region of the second opening, and an external thread of the impression die sleeve engages in the internal thread, wherein, in a tightened state of the mounting device, a spring device arranged in the housing is adapted to achieve a preloading between the impression die and the impression die sleeve along the sleeve axis, wherein the preloading can be established by inserting the impression die through the first end of the impression die sleeve into the impression die sleeve.

[0008] In one embodiment, the spring device includes a leaf spring, which acts on a radially protruding portion of the impression die and on a first end of the impression die sleeve facing the radially protruding portion.

[0009] In one embodiment, a second end of the impression die has an impression die end face, wherein the impression die sleeve has a second open end with an annular sleeve end face, wherein, in the tightened state of the mounting device, alignment of the impression die end face with the sleeve end face indicates the presence of a target force on the coupling body.

[0010] In this way, an assembler can easily identify whether the clamping ultrasonic transducer is pressed against the pipeline with a desired force.

[0011] In one embodiment, a lever length of a first end of the rocker relative to the rotary bearing is greater than a lever length of a second end of the rocker.

[0012] In one embodiment, both the rocker and the base are made of a metal such as steel or especially stainless steel.

[0013] In one embodiment, the mounting device can be pressed against the pipeline with a first force, wherein the coupling body support is configured to exert a second force on the coupling body, Wherein, the second force is less than the first force.

[0014] The clamping ultrasonic transducer according to the present invention comprises: A transducer element for generating and detecting ultrasonic signals; A coupling body for transmitting the ultrasonic signals between the pipeline and the transducer element, the coupling body having a mating support portion configured to support the coupling body support portion.

[0015] The clamping ultrasonic measuring device according to the present invention comprises: The mounting device according to the present invention; At least one ultrasonic transducer according to the present invention, in particular at least a pair of ultrasonic transducers, each ultrasonic transducer being configured to be mounted by means of the mounting device; An electronic measurement / operation circuit for operating the at least one ultrasonic transducer, for evaluating the measurement signals of the at least one ultrasonic transducer, and for providing measurement values of at least one measurement variable, such as the flow velocity or the sound velocity of the medium flowing through the pipeline. Description of the Drawings

[0016] The present invention will be described below with reference to embodiments.

[0017] Figure 1 A side view of an exemplary mounting device according to the present invention is shown.

[0018] Figure 2 A cross-section of the rocker of an exemplary mounting device according to the present invention is shown.

[0019] Figure 3 Is a schematic diagram of a clamping ultrasonic transducer fastened to a pipeline in a manner according to the present invention.

[0020] Figure 4 Is a schematic diagram of an exemplary clamping ultrasonic measuring device. Detailed Description of the Invention

[0021] Figure 1A side view of an exemplary mounting device 10 for fastening a clamping ultrasonic transducer 20 according to the present invention is shown. The mounting device has a base 12 which can be fastened to a pipeline via a fastening support 12.1 by means of a fastening device. A rocker 11 is mounted on the base in a rotatably movable and laterally fixed manner by means of a rotary bearing 11.3. A coupling body support 13 for a mating support 22.1 of a coupling body 22 for supporting the clamping ultrasonic transducer 20 is provided at a first end 11.1 of the rocker. A housing 14 for a linear guide of a die 15 is provided at a second end 11.2 of the rocker, wherein the die is configured to exert a force on the base in the direction of a first side by means of a first end of a die 15.1. In this way, a contact pressure can be applied to the coupling body of the ultrasonic transducer 20 via the leverage of the rocker 11. The die can also be linearly guided via other configurations instead of via the housing.

[0022] Figure 2 A cross-section through Figure 1 the housing 14 of the rocker shown is presented, where the housing has a first housing part 14.1 on a side 14.01 facing the pipeline and a second housing part 14.2 on a side 14.02 facing away from the pipeline. One of the two housing parts is designed as a housing can, and the other of the two housing parts is designed as a housing cover. In this example, the first housing part forms the housing can, and the second housing part forms the housing cover. A die sleeve 14.3 is configured to support the die 15 in a radially fixed and axially movable manner. The die sleeve has a first open end 14.31 facing the first side of the housing and projects the die from the first open end.

[0023] The die sleeve is mounted in the second housing part (here the housing cover) by means of an external thread 14.32 which engages an internal thread 14.22 of the second housing part. A spring device 16 is arranged in the housing. For example, as shown here, the spring device 16 has two leaf springs 16.1 and is configured to achieve preloading between the die 15 and the die sleeve 14.3 along a sleeve axis 14.33, wherein the preloading can be established by inserting the die through the first end 14.31 of the die sleeve into the die sleeve. By rotating the die sleeve in the internal thread of the second housing part, the preloading between the die and the die sleeve can be adjusted, and thus the force exerted by the die on the base can be adjusted. The spring device acts on or the leaf springs act on a radially projecting portion 15.3 of the die and on a first end of the die sleeve 14.31 facing the radially projecting portion.

[0024] In one embodiment, as shown herein, the second end 15.2 of the impression has an impression end face 15.21, wherein the impression sleeve 14.3 has a second open end 14.34 with an annular sleeve end face 14.4, and wherein, in the fastened state of the mounting device, the alignment of the impression end face with the sleeve end face indicates the presence of a target force on the coupling body.

[0025] Figure 3 is a schematic diagram of a clamping ultrasonic transducer 20 fastened to a pipeline 40, which is fastened to the outside of the pipeline by a mounting device 10 according to the present invention. The mounting device can be attached, for example, using a rod system as shown herein, but those skilled in the art have the freedom to choose in terms of fastening the mounting device. By means of the mounting device 10, the coupling body 22 of the ultrasonic transducer 20 is pressed against the pipeline via the mating support portion 22.1 of the coupling body, so that the ultrasonic signal generated by the transducer element 21 can be easily coupled into the pipeline.

[0026] Figure 4 is a schematic diagram of an exemplary clamping ultrasonic measuring device 1, which has two clamping ultrasonic transducers 20 arranged on the outside of a pipeline 40. The electronic measurement / operation circuit 30 is configured to operate the at least one clamping ultrasonic transducer, evaluate the measurement signal of the at least one clamping ultrasonic transducer, and provide a measured value of a measured variable. Such a measured variable can be, for example, the flow velocity or the sound velocity of the medium flowing through the pipeline. For example, the runtime or runtime difference method can be used. The number and arrangement of the clamping ultrasonic transducers shown here are purely exemplary and not restrictive.

[0027] List of reference numerals

[0028] 1 Clamping ultrasonic flow measurement device

[0029] 10 Mounting device

[0030] 10.1 First side

[0031] 11 Rocker

[0032] 11.1 First end

[0033] 11.2 Second end

[0034] 11.3 Rotating bearing

[0035] 12 Base

[0036] 12.1 Fastening support portion

[0037] 13 Coupling body support portion

[0038] 14 Housing

[0039] 14.01 First side

[0040] 14.02 Second side

[0041] 14.1 First housing part

[0042] 14.11 First opening

[0043] 14.2 Second housing part

[0044] 14.21 Second opening

[0045] 14.22 Internal thread

[0046] 14.3 Impression sleeve

[0047] 14.31 Open first end

[0048] 14.32 External thread

[0049] 14.33 Sleeve axis

[0050] 14.34 Open second end

[0051] 14.4 Sleeve end face

[0052] 15 Impression

[0053] 15.1 First end

[0054] 15.2 Second end

[0055] 15.21 Impression end face

[0056] 15.3 Radial protrusion

[0057] 16 Spring device

[0058] 16.1 Leaf spring

[0059] 20 Ultrasonic transducer

[0060] 21 Transducer element

[0061] 22 Connecting body

[0062] 22.1 Mating support part

[0063] 30 Electronic measuring / operating circuit

[0064] 40 Pipeline

Claims

1. An installation device (10), which is configured to install an ultrasonic transducer (20) on a medium conveying pipeline (40), and the installation device (10) comprises: a rocker (11) having a first end (11.1), a second end (11.2) and a rotary bearing (11.3) therebetween; a base (12), the rocker is mounted on the base by means of the rotary bearing and is fastened in terms of lateral movement and vertical movement, wherein the base has at least two fastening support portions (12.1) for a fastening device to fasten the base to the pipeline; wherein the first end of the rocker has a connecting body support portion (13), and the connecting body support portion is configured to apply a force to the connecting body of the ultrasonic transducer in the direction of the first side (10.1) of the installation device facing the pipeline; wherein the second end of the rocker has a linearly guided stamp (15), and the stamp is configured to apply a force to the base in the direction of the first side of the installation device by means of the first end of the stamp (15.1).

2. The installation device according to claim 1, wherein, the stamp is guided in a housing, and the housing (14) comprises: a first housing part (14.1) which is arranged on the first side of the housing (14.01) facing the pipeline (40) and has a centrally arranged first opening (14.11); a second housing part (14.2) which is arranged on the side of the housing (14.02) facing away from the pipeline and has a centrally arranged second opening (14.21); a stamp sleeve (14.3) for radially supporting the stamp, the stamp sleeve having an open first end (14.31), wherein the stamp can move in the stamp sleeve along a sleeve axis (14.33); wherein the first end of the stamp extends through the first opening (14.11) of the housing (14.11) and protrudes from the open first end of the stamp sleeve; wherein the housing has an internal thread (14.22) in the region of the second opening (14.21), and the external thread (14.32) of the stamp sleeve engages in the internal thread (14.22); wherein, in the fastened state of the installation device, a spring device (16) arranged in the housing is adapted to achieve preloading between the stamp (15) and the stamp sleeve (14.3) along the sleeve axis (14.33), and the preloading can be established by inserting the stamp through the first end (14.31) of the stamp sleeve into the stamp sleeve.

3. The installation device according to claim 2, wherein, The spring device (16) has at least one leaf spring (16.1), and the leaf spring (16.1) acts on the radial protrusion (15.3) of the die and on the first end (14.31) of the die sleeve facing the radial protrusion.

4. The mounting device according to claim 2 or 3, wherein, the second end (15.2) of the die has a die end face (15.21), wherein the die sleeve (14.3) has a second open end (14.34) with an annular sleeve end face (14.4), wherein, in the fastened state of the mounting device, the alignment of the die end face with the sleeve end face indicates the presence of a target force on the coupling body.

5. The mounting device according to any one of the preceding claims, wherein, the lever length of the first end (11.1) of the rocker relative to the rotary bearing is greater than the lever length of the second end (11.2) of the rocker.

6. The mounting device according to any one of the preceding claims, wherein, both the rocker and the base are made of a metal such as steel or especially stainless steel.

7. The mounting device according to any one of the preceding claims, wherein, the mounting device can be pressed against the pipeline by a first force, and a second force can be applied to the coupling body (22) via the coupling body support (22.1), wherein the second force is less than the first force.

8. A clamping ultrasonic transducer (20) configured for the mounting device according to any one of claims 1-7, comprising: a transducer element (21) for generating and detecting ultrasonic signals; a coupling body (22) for transmitting the ultrasonic signals between the pipeline and the transducer element, the coupling body having a mating support (22.1) configured for the coupling body support (13).

9. A clamping ultrasonic measuring device (1), comprising: the mounting device (10) according to any one of the preceding claims; at least one ultrasonic transducer (20) according to claim 8, especially at least a pair of ultrasonic transducers, each ultrasonic transducer being adapted to be mounted by means of the mounting device; an electronic measurement / operation circuit (30) for operating the at least one ultrasonic transducer, for evaluating measurement signals from the at least one ultrasonic transducer, and for providing a measured value of at least one measurement variable, such as the flow velocity or the sound velocity of the medium flowing through the pipeline.

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