A fixing device for flow meter components

Abstract

An embodiment of the present invention provides a fixing device for a flow meter component, comprising two fixing brackets, the two fixing brackets being fixed on both sides of the flow meter component; each fixing bracket is provided with a connecting arc, and the connecting arcs are symmetrical about the axis in the vertical direction. When the flow meter component is a driver on a Coriolis mass flowmeter, the two fixing brackets are fixed to both sides of the driver respectively, and the driver is fixed to the flow tube of the Coriolis mass flowmeter through the connecting arcs on the fixing brackets, so that the driver is installed and fixed. This structure can make the connection stiffness of the fixing bracket and the flow tube symmetrical along the middle surface of the flow tube, avoiding undesirable deformation of the flow tube during working vibration, and at the same time improving the zero point stability and overall performance of the Coriolis mass flowmeter.

Description

Technical Field

[0001] The invention relates to the field of measurement technology, and in particular to a fixing device for flow meter components. Background Art

[0002] In the Coriolis mass flowmeter, the driver and sensor of the flowmeter are fixed by a bracket. The design form and physical parameters (mass and stiffness) of the bracket have a crucial impact on the zero point stability and anti-interference performance of the flowmeter. At present, the bracket is mostly made of sheet metal stamping.

[0003] In the process of realizing the present invention, the inventors found that there are at least the following problems in the prior art: the strength of the sheet metal bracket is poor, and it will produce different degrees of deformation after being fixed to the flow tube. In addition, when the flow meter is in working state, the flow tube drives the bracket to vibrate. Due to the weak rigidity and asymmetry of the sheet metal bracket, it has an adverse effect on the zero point stability of the flow meter. Summary of the invention

[0004] In view of this, an embodiment of the present invention provides a fixing device for flow meter components to solve the problems in the prior art that the sheet metal bracket has poor strength, which causes deformation after being fixed to the flow tube, and the sheet metal bracket has weak stiffness and asymmetry, which has an adverse effect on the zero point stability of the flow meter.

[0005] To achieve the above object, an embodiment of the present invention provides a fixing device for a flow meter component, comprising two fixing brackets, the two fixing brackets being fixed on both sides of the flow meter component; each of the fixing brackets is provided with a connecting arc, and the connecting arcs are axisymmetric in the vertical direction;

[0006] Optionally, the above-mentioned fixing device for flow meter components further includes a balancing block, which is fixed to one side of the fixing bracket to make the mass of the fixing device for flow meter components symmetrical.

[0007] Optionally, in the above-mentioned fixing device for flow meter components, the fixing bracket is made of a square tube with a rectangular cross-section.

[0008] Optionally, in the above-mentioned fixing device for flow meter components, the quality of the fixing device for flow meter components is made symmetrical by machining the square tube.

[0009] Optionally, in the above-mentioned fixing device for a flow meter component, a first mounting slot is provided on a side of the fixing bracket in contact with the flow meter component, and the fixing bracket is fixedly connected to the flow meter component via the first mounting slot.

[0010] Optionally, the above-mentioned fixing device for the flow meter component further includes a first fixing piece, which passes through the first mounting slot and is inserted into the flow meter component to fix the flow meter component and the fixing bracket.

[0011] Optionally, in the above-mentioned fixing device for flow meter components, a second mounting slot hole is provided on a side of the fixing bracket in contact with the balancing block, and the fixing bracket is fixedly connected to the balancing block via the second mounting slot hole.

[0012] Optionally, in the above-mentioned fixing device for flow meter components, a mounting hole is provided on the balancing block, and the balancing block is fixedly connected to the fixing bracket through the mounting hole.

[0013] Optionally, the above-mentioned fixing device for flow meter components further includes a second fixing member, which passes through the mounting hole and the second mounting slot hole and is used to fix the fixing bracket and the balancing block.

[0014] According to the technical solution of the present invention, one embodiment of the above invention has the following advantages or beneficial effects: a connection arc is provided at one end of the fixed bracket, and the fixed bracket is fixedly connected to the flow tube of the flow meter through the connection arc, and the connection arc is symmetrical about the vertical axis, so that when the fixed bracket is fixed to the flow tube of the flow meter through the connection arc, it can ensure that the connection stiffness of the fixed bracket and the flow tube is symmetrical along the middle surface of the flow tube, effectively avoiding the flow tube from producing undesirable deformation during working vibration. Fixed brackets are respectively fixed on both sides of the flow meter component, that is, the flow meter component is fixed to the flow tube of the flow meter through the connection arcs on the two fixed brackets. When the flow meter component is a driver on a Coriolis mass flowmeter, the two fixed brackets are respectively fixed to the two sides of the driver, and the driver is fixed to the flow tube of the Coriolis mass flowmeter through the connection arcs on the fixed bracket, so that the driver is installed and fixed. This structure can make the connection stiffness of the fixed bracket and the flow tube symmetrical along the middle surface of the flow tube, avoiding the undesirable deformation of the flow tube during working vibration, and at the same time improving the zero point stability and overall performance of the Coriolis mass flowmeter.

[0015] The further effects of the above-mentioned non-conventional optional manner will be described below in conjunction with the specific implementation manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to better understand the present invention and do not constitute an improper limitation of the present invention.

[0017] Figure 1 It is a structural schematic diagram of an embodiment of a fixing device for flow meter components of the present invention;

[0018] Figure 2It is a structural schematic diagram of a fixing bracket of an embodiment of a fixing device for flow meter components of the present invention;

[0019] Figure 3 It is a structural schematic diagram of a fixing bracket machined and manufactured according to an embodiment of a fixing device for flow meter components of the present invention;

[0020] Figure 4 It is a structural schematic diagram of a fixing bracket of a fixing device for flow meter components according to an embodiment of the present invention from another perspective;

[0021] Figure 5 It is a cross-sectional view of an embodiment of a fixing device for flow meter components of the present invention.

[0022] The above drawings include the following reference numerals:

[0023] 1-flow meter component, 2-fixing bracket, 3-connecting arc, 4-balancing block, 5-first mounting slot hole, 6-first fixing piece, 7-second mounting slot hole, 8-mounting hole, 9-second fixing piece. DETAILED DESCRIPTION

[0024] The following is a description of exemplary embodiments of the present invention in conjunction with the accompanying drawings, including various details of the embodiments of the present invention to facilitate understanding, which should be considered as merely exemplary. Therefore, it should be recognized by those of ordinary skill in the art that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the present invention. Similarly, for clarity and conciseness, the description of well-known functions and structures is omitted in the following description.

[0025] like Figure 1 and Figure 2 As shown, a fixing device for a flow meter component provided by an embodiment of the present invention comprises two fixing brackets 2, and the two fixing brackets 2 are fixed on both sides of a flow meter component 1; each fixing bracket 2 is provided with a connecting arc 3, and the connecting arc 3 is axisymmetric in the vertical direction;

[0026] In a fixing device for a flow meter component provided by an embodiment of the present invention, a connection arc 3 is provided at one end of a fixing bracket 2, and the fixing bracket 2 is fixedly connected to a flow tube of the flow meter through the connection arc 3, and the connection arc 3 is symmetrical about the vertical axis, that is, when the end of the fixing bracket 2 opposite to the connection arc 3 is placed horizontally, the central angles of the two arcs of the connection arc 3 bisected by the vertical axis are equal, and the central angles are both a°, so that when the fixing bracket 2 is fixed to the flow tube of the flow meter through the connection arc 3, it can ensure that the connection stiffness of the fixing bracket 2 and the flow tube is symmetrical along the middle surface of the flow tube, effectively avoiding undesirable deformation of the flow tube during working vibration. The fixing brackets 2 are fixed on both sides of the flow meter component 1, that is, the flow meter component 1 is fixed to the flow tube of the flow meter through the connection arcs 3 on the two fixing brackets 2. When the flow meter component 1 is a driver on a Coriolis mass flowmeter, two fixed brackets 2 are fixed to the two sides of the driver respectively, and the driver is fixed to the flow tube of the Coriolis mass flowmeter through the connecting arc 3 on the fixed bracket 2, so that the installation and fixation of the driver is completed. This structure can make the connection stiffness of the fixed bracket 2 and the flow tube symmetrical along the middle surface of the flow tube, avoiding undesirable deformation of the flow tube during working vibration, and at the same time improving the zero point stability and overall performance of the Coriolis mass flowmeter.

[0027] Optionally, in a fixing device for a flow meter component provided in an embodiment of the present invention, when the fixing bracket 2 is used to fix the driver on the Coriolis mass flowmeter, the fixing bracket 2 is fixed to the flow tube through the connecting arc 3, and the fixing method of the connecting arc 3 to the flow tube can be welding or other fixing methods that meet the requirements. Optionally, in the fixing bracket provided in an embodiment of the present invention, the connecting arc 3 is fixed to the flow tube by vacuum brazing.

[0028] like Figure 1 As shown, a fixing device for a flow meter component provided by an embodiment of the present invention further includes a balancing block 4, which is fixed to one side of the fixing bracket 2, and is used to make the mass of the fixing device for the flow meter component symmetrical. By providing the balancing block 4 and fixing the balancing block 4 to the outside of the fixing bracket 2, the entire fixing device is adjusted to be symmetrical about the center mass of the two flow tubes, so that when the flow meter component 1 is fixed to the flow tube through the connecting arc 3 on the fixing bracket 2, the overall stability of the flow meter can be improved, and the flow tube can be effectively prevented from being deformed undesirably during working vibration.

[0029] like Figure 4As shown, in a fixing device for a flow meter component provided by an embodiment of the present invention, the fixing bracket 2 is made of a square tube with a rectangular cross-section. The fixing bracket 2 is manufactured by machining with a standard rectangular square tube. This manufacturing method is not only easy to process, low cost, and reduces the procurement cost, but also can ensure that the connecting arc 3 is symmetrical about the vertical axis, while avoiding the problem of poor strength and weak rigidity of the fixing bracket 2 after sheet metal stamping processing, thereby improving the strength and rigidity of the fixing bracket 2. Optionally, in a fixing device for a flow meter component provided by an embodiment of the present invention, the material of the rectangular square tube can be steel or other metal materials. Optionally, in a fixing device for a flow meter component provided by an embodiment of the present invention, the fixing bracket 2 is manufactured by machining with a rectangular square steel. The rectangular square steel has good strength and rigidity, and is low cost and easy to process, thereby reducing the procurement cost.

[0030] like Figure 3 As shown, in a fixture for a flow meter component provided by an embodiment of the present invention, the fixture for the flow meter component is symmetrical in mass by machining the square tube. In actual application, the square tube can also be directly machined to ensure that the entire fixture is symmetrical about the center of the two flow tubes. This method is easy to process, low in cost, and reduces procurement costs.

[0031] like Figure 1 and Figure 4 As shown, in a fixing device for a flow meter component provided by an embodiment of the present invention, a first mounting slot 5 is provided on a side of a fixing bracket 2 in contact with a flow meter component 1, and the fixing bracket 2 is fixedly connected to the flow meter component 1 through the first mounting slot 5. By providing the first mounting slot 5 on one side of the fixing bracket 2 to be fixedly connected to the flow meter component 1, the fixing bracket 2 can be conveniently fixedly installed on the flow meter component 1.

[0032] like Figure 1 and Figure 4 As shown, a fixing device for a flow meter component provided by an embodiment of the present invention further includes a first fixing member 6, which passes through the first mounting slot 5 and is inserted into the flow meter component 1, and is used to fix the flow meter component 1 and the fixing bracket 2. By passing the first fixing member 6 through the first mounting slot 5 and inserting it into the flow meter component 1, the flow meter component 1 and the fixing bracket 2 can be conveniently fixed together. Optionally, in a fixing device for a flow meter component provided by an embodiment of the present invention, when a thread is provided in the first mounting slot 5, the first fixing member 6 is a bolt or a screw, and the portion of the flow meter component 1 that contacts the fixing member 6 is correspondingly provided with a thread.

[0033] like Figure 4 and Figure 5As shown, in a fixing device for a flow meter component provided by an embodiment of the present invention, a second mounting slot 7 is provided on a side of the fixing bracket 2 that contacts the balancing weight 4, and the fixing bracket 2 is fixedly connected to the balancing weight 4 through the second mounting slot 7. By providing the second mounting slot 7 on one side of the fixing bracket 2 to be fixedly connected to the balancing weight 4, the balancing weight 4 can be conveniently fixedly installed on the fixing bracket 2.

[0034] like Figure 5 As shown, a fixing device for a flow meter component provided by an embodiment of the present invention further includes a second fixing member 9. A mounting hole 8 is provided on the balancing block 4. The second fixing member 9 passes through the mounting hole 8 and the second mounting slot 7 to fix the balancing block 4 and the fixing bracket 2. By passing the second fixing member 9 through the mounting hole 8 on the balancing block 4 and the second mounting slot 7 on the fixing bracket 2, the fixing bracket 2 and the balancing block 4 can be conveniently fixedly connected together.

[0035] Optionally, in a fixing device for a flow meter component provided in an embodiment of the present invention, the flow meter component 1 may be a driver or sensor of a Coriolis mass flowmeter, that is, the driver or sensor of the Coriolis mass flowmeter is fixed to the flow tube of the Coriolis mass flowmeter through a fixing bracket 2.

[0036] The following uses a driver for fixing a Coriolis mass flowmeter as an example to illustrate the use of a fixing device for a flowmeter component provided by an embodiment of the present invention.

[0037] like Figure 5 As shown, when the flow meter component 1 is a driver of a Coriolis mass flowmeter, firstly, the first fixing member 6 is passed through the first mounting slot 5 on the fixing bracket 2 and inserted into the driver, and the fixing brackets 2 are fixedly installed on both sides of the driver, and then the second fixing member 9 is passed through the mounting hole 8 on the balance block 4 and the second mounting slot 7 on the fixing bracket 2, and the balance block 4 is fixed to the outside of the fixing bracket 2, so as to complete the assembly of the fixing device, and finally the connecting arc 3 on the fixing bracket 2 is fixed to the flow tube of the Coriolis mass flowmeter by vacuum brazing, so as to complete the fixed installation of the driver. This structure can make the connection stiffness of the fixing bracket 2 and the flow tube symmetrical along the middle surface of the flow tube, avoid the undesirable deformation of the flow tube during the working vibration process, and improve the zero point stability and overall performance of the Coriolis mass flowmeter.

[0038] It can be seen that in a fixing device for a flow meter component provided by an embodiment of the present invention, a connecting arc 3 is provided at one end of a fixing bracket 2, and the fixing bracket 2 is fixedly connected to the flow tube of the flow meter through the connecting arc 3, and the connecting arc 3 is symmetrical about the vertical axis, that is, when the end of the fixing bracket 2 opposite to the connecting arc 3 is placed horizontally, the central angles of the two arcs of the connecting arc 3 bisected by the vertical axis are equal, and the central angles are both a°, so that when the fixing bracket 2 is fixed to the flow tube of the flow meter through the connecting arc 3, it can ensure that the connection stiffness of the fixing bracket 2 and the flow tube is symmetrical along the middle surface of the flow tube, effectively avoiding undesirable deformation of the flow tube during working vibration. The fixing brackets 2 are fixed on both sides of the flow meter component 1, that is, the flow meter component 1 is fixed to the flow tube of the flow meter through the connecting arcs 3 on the two fixing brackets 2. When the flow meter component 1 is a driver on a Coriolis mass flowmeter, two fixed brackets 2 are fixed to the two sides of the driver respectively, and the driver is fixed to the flow tube of the Coriolis mass flowmeter through the connecting arc 3 on the fixed bracket 2, so that the installation and fixation of the driver is completed. This structure can make the connection stiffness of the fixed bracket 2 and the flow tube symmetrical along the middle surface of the flow tube, avoiding undesirable deformation of the flow tube during working vibration, and at the same time improving the zero point stability and overall performance of the Coriolis mass flowmeter.

[0039] The above specific implementations do not constitute a limitation on the protection scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions may occur depending on design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A fixing device for a flow meter component, It is characterized in that It comprises two fixing brackets (2), wherein the two fixing brackets (2) are fixed on both sides of the flow meter component (1); A connecting arc (3) is formed on each of the fixing brackets (2), and the connecting arcs (3) are axially symmetrical in the vertical direction, and the fixing bracket (2) is fixed to an external flow tube via the connecting arc (3); It also includes a balancing block (4), which is fixed to one side of the fixing bracket (2) and is used to make the mass of the fixing device for the flow meter component symmetrical; A first mounting slot (5) is provided on a side of the fixing bracket (2) in contact with the flow meter component (1), and the fixing bracket (2) is fixedly connected to the flow meter component (1) via the first mounting slot (5); The fixing bracket (2) is made of a square tube with a rectangular cross section.

2. The fixing device for flow meter components according to claim 1, It is characterized in that The square tube is machined to provide symmetry in mass of the fixture for flow meter components.

3. The fixing device for flow meter components according to claim 1, It is characterized in that It also comprises a first fixing member (6), the first fixing member (6) passing through the first mounting slot hole (5) and inserted into the flow meter component (1), and being used to fix the flow meter component (1) and the fixing bracket (2).

4. The fixing device for flow meter components according to claim 1, It is characterized in that A second mounting slot (7) is provided on the side of the fixing bracket (2) that contacts the balancing weight (4), and the fixing bracket (2) is fixedly connected to the balancing weight (4) via the second mounting slot (7).

5. The fixing device for flow meter components according to claim 4, It is characterized in that The balancing block (4) is provided with a mounting hole (8), and the balancing block (4) is fixedly connected to the fixing bracket (2) via the mounting hole (8).

6. The fixing device for flow meter components according to claim 5, It is characterized in that It also includes a second fixing member (9), which passes through the mounting hole (8) and the second mounting slot hole (7) and is used to fix the fixing bracket (2) and the balancing weight (4).

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