Flow meter conditioning fixture

Abstract

The utility model provides a flowmeter adjustment frock, including base, drive mechanism and oil pipe subassembly, the base top is equipped with the mounting panel, drive mechanism installs on mounting panel and one end is equipped with the pivot, still be equipped with the seat on mounting panel, pivot one end is inserted in seat and with seat rotation cooperation, the flowmeter of waiting and measuring is installed on oil pipe subassembly, oil pipe subassembly installs on pivot, drive mechanism is used for adjusting the rotation angle of pivot to adjust the angle of waiting and measuring flowmeter relative mounting panel. The above-mentioned flowmeter adjustment frock, drive mechanism can drive pivot to rotate, the rotation of pivot will drive waiting and measuring flowmeter to rotate, thereby can carry out fuel flow measurement calibration test under different angles, be favorable to obtain the influence of angle change to the measurement accuracy of waiting and measuring flowmeter and obtain the flow calibration data under actual installation angle.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical equipment technical field, concretely relates to a flowmeter adjustment tool. BACKGROUND

[0002] Fuel flow detection parameter is one of key parameters of engine control, and conventional flowmeter is only calibrated at horizontal installation angle before acceptance.

[0003] And in actual flight test, the turbine flowmeter for fuel flow measurement is not installed horizontally, and the front and rear pipelines have certain actual installation angle, and the installation angle is the included angle between fluid flow direction and horizontal direction, so that the flow inlet flow field speed distribution is influenced, and the turbine sensor measurement precision is influenced.

[0004] Based on this, the utility model discloses a flowmeter adjustment tool to solve the above technical problem. UTILITY MODEL CONTENTS

[0005] The utility model solves the technical problem that the conventional horizontal calibration method in the prior art is greatly different from the real application scene, and the flow calibration data under the actual installation angle cannot be obtained, and provides a flowmeter adjustment tool.

[0006] The utility model solves the above technical problem through the following technical scheme:

[0007] The utility model provides a flowmeter adjustment tool, and the characteristics are that it comprises:

[0008] The base is provided with a mounting plate on the top,

[0009] The driving mechanism is installed on the mounting plate and is provided with a rotating shaft at one end, and the mounting plate is further provided with a seat body, and the rotating shaft is inserted into the seat body at one end and rotationally matched with the seat body.

[0010] The oil passage assembly is installed on the rotating shaft, and the driving mechanism is used for adjusting the rotating angle of the rotating shaft to adjust the angle of the flowmeter to be measured relative to the mounting plate.

[0011] According to one embodiment of the utility model, the driving mechanism is a semi-universal dividing head, and the output shaft of the semi-universal dividing head is connected with the rotating shaft through a mounting disc.

[0012] According to one embodiment of the utility model, the rotating shaft is provided with a mounting groove,

[0013] The oil pipe assembly comprises a bottom plate, an oil inlet pipe and an oil outlet pipe, the bottom plate is embedded in the mounting groove and connected with the rotating shaft through a threaded connector, one end of the oil inlet pipe and the oil outlet pipe is communicated, and the other end of the oil inlet pipe and the oil outlet pipe, which are away from each other, is connected with an external fuel flow test system respectively.

[0014] The to-be-tested flow meter is mounted on the oil inlet pipe or the oil outlet pipe.

[0015] According to an embodiment of the utility model, the bottom plate is provided with a first support plate and a second support plate on the side away from the mounting plate, the first support plate and the second support plate are arranged at intervals and connected with the bottom plate through a threaded connector.

[0016] The first support plate and the second support plate support the oil inlet pipe and the oil outlet pipe at the top.

[0017] According to an embodiment of the utility model, the first support plate is provided with a first pressing plate at the top, the first pressing plate is arranged on the outer side of the oil outlet pipe and connected with the first support plate.

[0018] The second support plate is provided with a second pressing plate at the top, the second pressing plate is arranged on the outer side of the oil inlet pipe and connected with the second support plate.

[0019] According to an embodiment of the utility model, the oil inlet pipe is provided with an oil inlet flange at the end away from the oil outlet pipe, and the oil outlet pipe is provided with an oil outlet flange at the end away from the oil inlet pipe.

[0020] The oil inlet flange and the oil outlet flange are connected with the external fuel flow test system respectively.

[0021] According to an embodiment of the utility model, the mounting plate is further provided with a fixing frame, one end of the rotating shaft extends out of the outer side of the seat body and is sleeved with a fixing sleeve, and one end of the fixing sleeve is connected with the fixing frame.

[0022] The outer side of the rotating shaft is further provided with a digital universal angle ruler, the digital universal angle ruler is located between the rotating shaft and the fixing sleeve and used for determining the rotation angle of the rotating shaft.

[0023] According to an embodiment of the utility model, the bottom of the mounting plate is supported through four vertically arranged columns.

[0024] The columns are connected with the mounting plate through screws at the top.

[0025] According to an embodiment of the utility model, the mounting plate is further provided with a metal bubble level, and the metal bubble level is used for leveling the mounting plate.

[0026] According to one embodiment of the utility model, the seat body is a bearing seat, and the bearing seat is connected with the mounting plate through a threaded connecting piece.

[0027] The utility model also provides a flowmeter adjusting tool, and the flowmeter adjusting tool is characterized by.

[0028] The utility model has the positive progress effect that:

[0029] The flowmeter adjusting tool of the utility model, the driving mechanism can drive the rotation of the rotating shaft, and the rotation of the rotating shaft can drive the rotation of the flowmeter to be measured, so that fuel flow measurement calibration tests can be carried out at different angles, which is beneficial to obtaining the influence of angle change on the measurement accuracy of the flowmeter to be measured and obtaining flow calibration data at the actual installation angle.

[0030] The utility model connects the flowmeter on the oil pipe assembly, and the installation angle of the flowmeter can be adjusted only by rotating the rotating shaft, the flowmeter to be measured does not need to be reinstalled each time, errors caused by disassembling and assembling the flowmeter are avoided, and experimental time is saved. BRIEF DESCRIPTION OF DRAWINGS

[0031] The above and other features, properties and advantages of the utility model will become more apparent through the following description in combination with the drawings and embodiments, wherein:

[0032] Figure 1 It is the shaft measurement view of the exemplary flowmeter adjusting tool of the utility model;

[0033] Figure 2 It is the front view of the exemplary flowmeter adjusting tool of the utility model.

[0034] 1, base plate; 11, mounting plate; 111, fixed frame; 12, seat body; 13, stand; 14, metal level bubble;

[0035] 2, driving mechanism; 21, rotating shaft; 211, mounting groove; 212, fixed sleeve; 22, mounting disc; 23, digital universal angle ruler;

[0036] 3, oil pipe assembly; 31, bottom plate; 311, first support plate; 312, second support plate; 313, first pressing plate; 314, second pressing plate; 32, oil inlet pipe; 321, oil inlet flange; 33, oil outlet pipe; 331, oil outlet flange;

[0037] 4, flowmeter to be measured. DETAILED DESCRIPTION

[0038] The utility model makes further description below specific embodiment and drawing, more details are set forth in the following description in order to fully understand the utility model, but the utility model can obviously be implemented in many other ways different from this description, and the person skilled in the art can make similar generalization, deduction according to actual application situation without violating the connotation of the utility model, therefore the protection scope of the utility model should not be limited by the content of this specific embodiment.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application; the description and the drawings of the specification thereto, and the terms "comprising," "having" used therein should not be construed as intended to limit the present application to the specific embodiments described herein and each of the individual features described herein can be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.

[0040] Please refer to Figure 1 And Figure 2 The utility model provides a flowmeter adjusting frock, including base 1, drive mechanism 2 and oil pipe assembly 3, the top of base 1 is equipped with mounting plate 11. Drive mechanism 2 is installed on mounting plate 11 and one end is installed with the shaft 21, mounting plate 11 is also equipped with the seat body 12, and the shaft 21 one end is inserted in the seat body 12 and is rotated with the seat body 12 cooperation. The flowmeter 4 to be measured is installed on oil pipe assembly 3, and oil pipe assembly 3 is installed on the shaft 21, and drive mechanism 2 is used for adjusting the rotation angle of the shaft 21 to adjust the angle of the flowmeter 4 to be measured relative to mounting plate 11.

[0041] It is known that the drive mechanism 2 can drive the shaft 21 to adjust the installation angle of the flowmeter 4 to be measured at any angle between-90° and 90°, and the accuracy of the angle can reach 0.1°. Moreover, the adjustment process is simple, and it is convenient to carry out calibration test of the flowmeter 4 to be measured under different installation angles.

[0042] In one embodiment, the drive mechanism 2 is a semi-universal index head, and the output shaft of the semi-universal index head is connected to the shaft 21 through the mounting disc 22.

[0043] The semi-universal index head is a conventional product in the art and can be directly purchased on the market, and therefore, the specific structure of the semi-universal index head is not limited herein.

[0044] The semi-universal index head can drive the rotation of the output shaft by rotating the index handle, and the rotation of the output shaft can further drive the rotation of the shaft 21 through the mounting disc 22, thereby adjusting the angle of the flowmeter 4 to be measured relative to the mounting plate 11, so as to satisfy the calibration test of the flowmeter 4 to be measured under different installation angles.

[0045] Please refer to Figure 1The shaft 21 is provided with a mounting groove 211; the oil pipe assembly 3 comprises a bottom plate 31, an oil inlet pipe 32 and an oil outlet pipe 33, the bottom plate 31 is embedded in the mounting groove 211 and connected with the shaft 21 through a threaded connecting piece, one end of the oil inlet pipe 32 and the oil outlet pipe 33 is communicated, and the other end of the oil inlet pipe 32 and the oil outlet pipe 33, which are away from each other, is connected with an external fuel flow test system respectively; the flowmeter to be tested 4 is installed on the oil inlet pipe 32 or the oil outlet pipe 33.

[0046] The groove bottom of the mounting groove 211 is a plane, thereby facilitating the installation of the oil pipe assembly 3 and improving the installation stability of the oil pipe assembly 3 and the shaft 21.

[0047] The bottom plate 31 and the shaft 21 are connected through the threaded connecting piece, thereby facilitating the disassembly, maintenance and assembly of the oil pipe assembly 3.

[0048] The specific structure of the external fuel flow test system belongs to the conventional design in the field, which is not limited herein.

[0049] Further, the side of the bottom plate 31, which is away from the mounting plate 11, is provided with a first support plate 311 and a second support plate 312, the first support plate 311 and the second support plate 312 are arranged at intervals and connected with the bottom plate 31 through threaded connecting pieces; the top of the first support plate 311 and the second support plate 312 supports the oil inlet pipe 32 and the oil outlet pipe 33.

[0050] In the present application, one end of the first support plate 311 and the second support plate 312 is connected with the bottom plate 31 through the threaded connecting piece; while in other optional embodiments, one end of the first support plate 311 and the second support plate 312 can be integrally formed with the bottom plate 31, which is not limited herein.

[0051] The first support plate 311 and the second support plate 312 are used to lift the oil pipe assembly 3, thereby leaving space to facilitate the rotation of the shaft 21 with the flowmeter to be tested 4, avoiding the interference of the mounting plate 11 to the rotation of the flowmeter to be tested 4, and improving the rotatable angle range of the flowmeter to be tested 4.

[0052] Further, the top of the first support plate 311 is provided with a first pressing plate 313, the first pressing plate 313 is arranged on the outer side of the oil outlet pipe 33 and connected with the first support plate 311; the top of the second support plate 312 is provided with a second pressing plate 314, the second pressing plate 314 is arranged on the outer side of the oil inlet pipe 32 and connected with the second support plate 312.

[0053] The middle part of the first pressing plate 313 is arranged on the outer side of the oil outlet pipe 33, and the two ends are connected with the first support plate 311 through screws or bolts. Similarly, the middle part of the second pressing plate 314 is arranged on the outer side of the oil inlet pipe 32, and the two ends are connected with the second support plate 312 through screws or bolts.

[0054] It should be noted that the first support plate 311 and the second support plate 312 can be provided with clamping grooves for the oil inlet pipe 32 and the oil outlet pipe 33, thereby improving the connection stability of the first support plate 311 and the second support plate 312 with the oil pipe assembly 3, avoiding the relative sliding of the oil pipe assembly 3 relative to the first support plate 311 and the second support plate 312 during the rotation of the rotating shaft 21, and affecting the test accuracy.

[0055] Please continue to refer to Figure 1 , the oil inlet pipe 32 is provided with an oil inlet flange 321 at an end away from the oil outlet pipe 33, and the oil outlet pipe 33 is provided with an oil outlet flange 331 at an end away from the oil inlet pipe 32; the oil inlet flange 321 and the oil outlet flange 331 are respectively connected with an external fuel flow test system.

[0056] The oil inlet flange 321 and the oil outlet flange 331 facilitate the connection of the oil inlet pipe 32 and the oil outlet pipe 33 with the external fuel flow test system, and the specific shape and size of the oil inlet flange 321 and the oil outlet flange 331 are not limited here.

[0057] Please continue to refer to Figure 1 and Figure 2 , the mounting plate 11 is further provided with a fixing frame 111, one end of the rotating shaft 21 extends out of the seat 12 and is sleeved with a fixing sleeve 212, one end of the fixing sleeve 212 is connected with the fixing frame 111; the rotating shaft 21 is further provided with a digital universal angle ruler 23, the digital universal angle ruler 23 is located between the rotating shaft 21 and the fixing sleeve 212, and is used to determine the rotation angle of the rotating shaft 21.

[0058] The digital universal angle ruler 23 is used to display the rotation angle, and the data of the digital universal angle ruler 23 is consistent with the angle scale indication of the semi-universal indexing head, and the two are used in cooperation, which is beneficial to improve the accuracy of the rotation angle of the flowmeter 4 to be tested. Among them, the angle accuracy of the present application can reach 0.1°.

[0059] In one embodiment, the bottom of the mounting plate 11 is supported by four vertically arranged columns 13; the top of the column 13 is connected with the mounting plate 11 by screws.

[0060] That is, the base 1 is composed of the column 13 and the mounting plate 11, the column 13 is used to support the mounting plate 11, the driving mechanism 2 and the oil pipe assembly 3 and other components, and the bottom of the column 13 can be stably placed on the ground by an adjustable foot cup.

[0061] Further, the mounting plate 11 is further provided with a metal level bubble 14, which is used to level the mounting plate 11.

[0062] During the installation of the installation plate 11, the height of the four corners of the installation plate 11 can be adjusted by adjusting the installation depth of the screw, thereby leveling the installation plate 11, and whether leveling can be determined by observing the metal level bubble 14.

[0063] In one embodiment, the seat body 12 supporting the rotating shaft 21 can be a bearing seat, thereby avoiding excessive friction between the rotating shaft 21 and the seat body 12, and improving the smoothness of the rotating shaft 21.

[0064] During actual installation, the semi-universal index head and the digital universal angle ruler 23 can be first zeroed, so that the installation plate 11 and the to-be-measured flowmeter 4 thereon are installed horizontally. The semi-universal index head is rotated to drive the rotating shaft 21 to rotate to a target angle. The rotating shaft 21 can be adjusted to an angle of -90° to 90°, the angle scale indication is consistent with the display of the digital universal angle ruler 23, and the angle accuracy reaches 0.1°.

[0065] The flowmeter adjusting tool provided by the utility model can conveniently adjust the rotation angle of the driving mechanism 2 by rotating the driving mechanism 2 to drive the rotation of the rotating shaft 21, rotating the to-be-measured flowmeter 4 installed on the rotating shaft 21, and adjusting the rotation angle of the driving mechanism 2 by using the angle scale indication of the driving mechanism 2 and / or the angle of the digital universal angle ruler 23, so that any angle between -90° and 90° can be obtained, and the angle accuracy reaches 0.1°, thereby the fuel flow measurement and calibration test at different angles can be performed, the influence of the angle change on the measurement accuracy of the to-be-measured flowmeter 4 can be obtained, and the flow calibration data at the actual installation angle can be obtained.

[0066] Moreover, the installation angle of the to-be-measured flowmeter 4 can be adjusted by only rotating the driving mechanism 2, without the need to reinstall the to-be-measured flowmeter 4 each time, so that the error caused by disassembling and assembling the flowmeter is avoided, and the experimental time is saved.

[0067] In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the technical terms "installation", "connection", "connection", "fixation" and the like should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integrated; can also be mechanical connection, and those skilled in the art can understand the specific meaning of the above-mentioned terms in the embodiments of the present application according to the specific circumstances.

[0068] The present application uses specific words to describe the embodiments of the present application. As "one embodiment", "an embodiment", and / or "some embodiments" means a certain feature, structure or characteristic related to at least one embodiment of the present application. Therefore, it should be emphasized and noted that the "an embodiment" or "one embodiment" or "an alternative embodiment" mentioned in different positions in the specification does not necessarily refer to the same embodiment. In addition, some features, structures or characteristics in one or more embodiments of the present application can be properly combined.

[0069] The utility model discloses although the above-mentioned preferable embodiment is disclosed, but it is not used to limit the utility model, and any person skilled in the art can make possible change and modification without departing from the spirit and scope of the utility model. Therefore, all the contents without departing from the technical scheme of the utility model, according to the technical essence of the utility model, any modification, equivalent change and modification of the above embodiment, all fall into the protection scope defined in the utility model claim.

Claims

1. A flowmeter conditioning tool, characterized by, The utility model relates to a kind of fuel flow test device, including: Base, top is provided with mounting plate; Driving mechanism, installation is in the mounting plate and one end is installed with rotating shaft, the mounting plate is also provided with seat body, the rotating shaft one end is inserted in the seat body and is rotated with the seat body cooperation; Oil pipe assembly, to be measured flowmeter is installed on the oil pipe assembly, the oil pipe assembly is installed on the rotating shaft, the driving mechanism is used for adjusting the rotating angle of the rotating shaft to adjust the angle of to be measured flowmeter relative to the mounting plate.

2. The flow meter conditioning tool of claim 1, wherein, The driving mechanism is a semi-universal index head, and the output shaft of the semi-universal index head is connected to the rotating shaft through a mounting disc.

3. The flow meter conditioning tool of claim 1, wherein, The rotating shaft is provided with a mounting groove. The oil pipe assembly includes a bottom plate, an oil inlet pipe and an oil outlet pipe. The to-be-measured flowmeter is installed on the oil inlet pipe or the oil outlet pipe.

4. The flow meter conditioning tool of claim 3, wherein, The bottom plate is provided with a first support plate and a second support plate on the side away from the mounting plate. The first support plate and the second support plate support the oil inlet pipe and the oil outlet pipe on the top.

5. The flow meter conditioning tool of claim 4, wherein, The first support plate is provided with a first pressing plate on the top. The second support plate is provided with a second pressing plate on the top.

6. The flow meter conditioning tool of claim 3, wherein, The oil inlet pipe is provided with an oil inlet flange at the end away from the oil outlet pipe. The oil outlet pipe is provided with an oil outlet flange at the end away from the oil inlet pipe.

7. The flow meter conditioning tool of claim 1, wherein, The oil inlet flange and the oil outlet flange are connected to the external fuel flow test system. The mounting plate is also provided with a fixing frame.

8. The flow meter conditioning tool of claim 1, wherein, The rotating shaft extends out of the seat body and is sleeved with a fixing sleeve at one end. The fixing sleeve is connected to the fixing frame at one end.

9. The flow meter conditioning tool of claim 8, wherein, The mounting plate is supported by four vertically arranged columns at the bottom.

10. The flow meter conditioning tool of claim 1, wherein, The columns are connected to the mounting plate by screws at the top. The mounting plate is also provided with a metal bubble level for leveling. The seat body is a bearing seat connected to the mounting plate by a threaded connector. The bearing seat is connected to the mounting plate by a threaded connector.

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