Dynamic reusable thrust torque monitoring device

Abstract

The invention provides a dynamic reusable thrust torque monitoring device. The dynamic reusable thrust torque monitoring device comprises an annular clamping device which comprises a first semi-ring and a second semi-ring and is used for clamping a transmission shaft; the measuring assembly comprises a flexible base, two thrust and torque measuring units are arranged on the flexible base in a spaced mode, and the flexible base is arranged in the circumferential direction of the clamping device so that the two thrust and torque measuring units can be attached to the outer surface of the clamping device; and the signal acquisition module is arranged on the clamping device and is used for receiving the detection signal acquired by the thrust torque measuring unit and transmitting the detection signal outwards. The invention provides a dynamic reusable thrust and torque monitoring device which is convenient to install, does not need to change an original system structure and can effectively monitor thrust and torque of a transmission shaft / transmission rod.

Description

Technical Field

[0001] The invention relates to the technical field of strain measurement, and in particular to a dynamic reusable thrust torque monitoring device. Background Art

[0002] In mechanical transmission devices, it is often necessary to measure the strain of the transmission shaft, monitor the changes in the thrust or torque of the transmission shaft / transmission rod and record the change trend. The fault and potential defects of the transmission device can be judged by the trend change.

[0003] For example, a torque sensor is installed on the pump shaft to monitor the torque change of the shaft, and a thrust sensor is installed on the valve stem to monitor the thrust output of the electric mechanism. Currently, most of these sensors are temporary sensors, and some require disassembly of the system to install. For example, the actuator and the transmission shaft need to be disassembled and fixed to the two ends of the torque thrust sensor respectively. This method destroys the overall structure of the original system.

[0004] How to provide a monitoring device that can effectively monitor thrust and torque without dismantling the original system structure has become an urgent problem to be solved. Summary of the invention

[0005] In view of the above problems in the prior art, the present invention proposes a dynamic reusable thrust and torque monitoring device, which is easy to install and does not require modification of the original system structure, and can effectively monitor the thrust and torque of the transmission shaft / transmission rod.

[0006] Specifically, the present invention proposes a dynamic reusable thrust torque monitoring device, which is applicable to a transmission shaft, comprising:

[0007] The clamping device is annular and comprises a first half ring and a second half ring, wherein one end of the first half ring and the second half ring are connected by a hinge and the other ends of the first half ring and the second half ring are connected by bolts, and the clamping device is used to clamp the transmission shaft;

[0008] A measuring assembly, comprising a flexible base, on which two thrust torque measuring units are arranged at intervals, the flexible base being arranged along the circumference of the clamping device so that the two thrust torque measuring units are attached to the outer surface of the clamping device, and the two thrust torque measuring units are symmetrically arranged along the axis of the transmission shaft;

[0009] The signal acquisition module is arranged on the clamping device and is used to receive the detection signal obtained by the thrust torque measurement unit and transmit it to the outside.

[0010] According to one embodiment of the present invention, the flexible base comprises a stainless steel sheet and two thickened stainless steel sheets, and the thickened stainless steel sheets are fixed by welding at both ends along the length direction of the stainless steel sheet;

[0011] The thrust torque measuring unit is arranged on the surface of the stainless steel sheet;

[0012] The two thickened stainless steel sheets are matched and fixed so that the two thrust torque measuring units are attached to the outer surface of the clamping device.

[0013] According to an embodiment of the present invention, the thickness of the stainless steel sheet is 0.05-0.1 mm.

[0014] According to an embodiment of the present invention, the thrust torque measuring unit is adhered to the surface of the stainless steel sheet.

[0015] According to one embodiment of the present invention, the distance between the central axes of the two thrust torque measuring units is equal to half of the outer circular circumference of the clamping device.

[0016] According to an embodiment of the present invention, scale lines are provided on the stainless steel sheet, and the thrust torque measurement unit is positioned and arranged based on the scale lines.

[0017] According to one embodiment of the present invention, each of the thrust torque measurement units includes a stainless steel base and two 45° torque measurement strain gauges and two thrust measurement strain gauges symmetrically arranged along the central axis of the stainless steel base.

[0018] According to an embodiment of the present invention, the thickness of the stainless steel substrate is 0.01-0.05 mm.

[0019] According to one embodiment of the present invention, two 45° torque measurement strain gauges are arranged at intervals on both sides of the central axis of the stainless steel substrate.

[0020] According to an embodiment of the present invention, the two thrust measurement strain gauges are perpendicular to each other and spaced apart along their respective length directions.

[0021] According to one embodiment of the present invention, the signal acquisition module includes a power supply unit, a signal processing unit and a wireless transmitting unit, the power supply unit supplies power to the signal processing unit, the signal processing unit is used to provide an excitation voltage to the thrust torque measurement unit and receive a detection signal, and the signal processing unit transmits the detection signal to the outside through the wireless transmitting unit.

[0022] According to an embodiment of the present invention, the power supply unit, the signal processing unit and the wireless transmitting unit are packaged in one body.

[0023] The present invention provides a dynamic and reusable thrust and torque monitoring device, in which a measuring component and a signal acquisition module are arranged on a transmission shaft through a clamping device. The measuring component is used to complete the thrust and torque monitoring of the transmission shaft, and the signal acquisition module transmits the collected signal to the outside, thereby effectively monitoring the thrust and torque of the transmission shaft / transmission rod.

[0024] It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are intended to provide further explanation of the invention as claimed. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings are included to provide a further understanding of the present invention and are incorporated in and constitute a part of this application. The accompanying drawings illustrate embodiments of the present invention and together with the description serve to explain the principle of the present invention.

[0026] In the attached figure:

[0027] Figure 1 A schematic structural diagram of a dynamic reusable thrust torque monitoring device according to an embodiment of the present invention is shown.

[0028] Figure 2 A schematic structural diagram of a measuring component according to an embodiment of the present invention is shown.

[0029] Figure 3 A schematic structural diagram of a thrust torque measurement unit according to an embodiment of the present invention is shown.

[0030] Figure 4 yes Figure 3 Wiring diagram for the 45° torque measurement strain gauge.

[0031] Figure 5 yes Figure 3 Wiring diagram for the 45° thrust measurement strain gauge.

[0032] Figure 6 A schematic structural diagram of a signal acquisition module according to an embodiment of the present invention is shown.

[0033] The above drawings include the following reference numerals:

[0034] Dynamic reusable thrust torque monitoring device 100

[0035] Clamping device 101

[0036] Measurement component 102

[0037] Signal acquisition module 103

[0038] The first half ring 104

[0039] The second half ring 105

[0040] Flexible base 106

[0041] Thrust torque measurement unit 107

[0042] Stainless steel sheet 108

[0043] Thickened stainless steel sheet 109

[0044] Square through hole 110

[0045] Tick ​​mark 111

[0046] Stainless steel base 112

[0047] 45° torque measurement strain gauge 113

[0048] Thrust measurement strain gauge 114

[0049] Torque measurement contact 115

[0050] Thrust measurement contact 116

[0051] Power supply unit 117

[0052] Signal processing unit 118

[0053] Wireless transmitting unit 119 DETAILED DESCRIPTION

[0054] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other.

[0055] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. The following description of at least one exemplary embodiment is actually merely illustrative and is by no means intended to limit the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0056] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0057] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so that once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0058] In the description of the present application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present application; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0059] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" may include both "above" and "below". The device may also be positioned in other different ways, rotated 90 degrees or in other orientations, and the spatially relative descriptions used herein are interpreted accordingly.

[0060] In addition, it should be noted that the use of words such as "first" and "second" to define components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above words have no special meaning and cannot be understood as limiting the scope of protection of this application. In addition, although the terms used in this application are selected from well-known and commonly used terms, some terms mentioned in the specification of this application may be selected by the applicant at his or her discretion, and their detailed meanings are explained in the relevant parts of the description of this article. In addition, it is required to understand this application not only by the actual terms used, but also by the meaning implied by each term.

[0061] Figure 1 A schematic structural diagram of a measurement component and a signal acquisition module of a dynamic reusable thrust torque monitoring device according to an embodiment of the present invention is shown. Figure 2 The schematic diagram of the structure of the measuring component of an embodiment of the present invention is shown. As shown in the figure, the present invention provides a dynamic reusable thrust torque monitoring device 100 suitable for a transmission shaft 200, which mainly includes a clamping device 101, a measuring component 102 and a signal acquisition module 103.

[0062] refer to Figure 1 The clamping device 101 is annular. The clamping device 101 includes a first half ring 104 and a second half ring 105. One end of the first half ring 104 and the second half ring 105 are connected by a hinge (not shown in the figure), and the other ends of the two are connected by a bolt (not shown in the figure). The inner diameter of the ring of the clamping device 101 matches the outer diameter of the transmission shaft 200, and the clamping device 101 is suitable for clamping on the transmission shaft 200.

[0063] refer to Figure 2 The measuring assembly 102 includes a flexible base 106. Two thrust torque measuring units 107 are arranged at intervals on the flexible base 106. The flexible base 106 is arranged along the circumference of the clamping device 101, and its length matches the annular outer diameter of the clamping device 101. Figure 1 As shown, when the flexible base 106 is assembled on the clamping device 101, the two thrust torque measuring units 107 are located between the clamping device 101 and the flexible base 106, and the thrust torque measuring units 107 are attached to the outer surface of the clamping device 101 to monitor the thrust and torque changes of the transmission shaft 200. The two thrust torque measuring units 107 are symmetrically arranged along the axis of the transmission shaft 200. In other words, the two thrust torque measuring units 107 are symmetrically distributed at 180° on the annular surface of the holding device.

[0064] The signal acquisition module 103 is disposed on the clamping device 101. The signal acquisition module 103 is electrically connected to the thrust torque measurement unit 107. The signal acquisition module 103 is used to receive the detection signal acquired by the thrust torque measurement unit 107 and transmit it to the outside.

[0065] Preferably, reference Figure 2 The flexible base 106 includes a stainless steel sheet 108 and two thickened stainless steel sheets 109. The thickened stainless steel sheets 109 are welded and fixed at both ends along the length direction of the stainless steel sheet 108. The thrust torque measuring unit 107 is arranged on the surface of the stainless steel sheet 108. Figure 1 As shown, by bending the flexible base 106, two thickened stainless steel sheets 109 can be matched and fixed on the surface of the clamping device 101, so that the two thrust torque measurement units 107 are attached to the outer surface of the clamping device 101. A square through hole 110 is opened on the thickened stainless steel sheet 109, and the square through hole 110 is penetrated by the installation accessories to fix the flexible base 106 on the clamping device 101.

[0066] Preferably, the thickness of the stainless steel sheet 108 is 0.05-0.1 mm, and the corresponding flexibility and rigidity make the stainless steel sheet 108 suitable for installation and can effectively carry the thrust torque measurement unit 107 .

[0067] Preferably, glue is applied on the surface of the thrust and torque measuring unit 107 , and the thrust and torque measuring unit 107 is adhered and fixed on the surface of the stainless steel sheet 108 .

[0068] Preferably, the distance between the central axes of the two thrust and torque measuring units 107 is equal to half of the outer circular circumference of the clamping device 101. In the installed state, the two thrust and torque measuring units 107 are symmetrically distributed at 180° on the annular surface of the clamping device.

[0069] Preferably, a scale line 111 is provided on the stainless steel sheet 108, and the thrust torque measuring unit 107 is positioned and arranged based on the scale line 111. For example, two thrust torque measuring units 107 are arranged with the 0 position of the scale line 111 as the symmetry axis.

[0070] Figure 3 The schematic diagram of the structure of a thrust torque measuring unit of an embodiment of the present invention is shown. As shown in the figure, preferably, each thrust torque measuring unit 107 includes a stainless steel substrate 112 and two 45° torque measuring strain gauges 113 and two thrust measuring strain gauges 114 symmetrically arranged along the central axis of the stainless steel substrate 112. More preferably, the thickness of the stainless steel substrate 112 is 0.01-0.05 mm, which is suitable for bearing strain gauges and does not affect the installation flexibility of the stainless steel sheet 108.

[0071] Preferably, two 45° torque measurement strain gauges 113 are spaced apart and arranged on both sides of the central axis of the stainless steel substrate 112 , that is, attached to the stainless steel substrate 112 in a bilaterally symmetrical manner.

[0072] Preferably, the two thrust measurement strain gauges 114 are perpendicular to each other and spaced apart along their respective length directions. The two thrust measurement strain gauges 114 are arranged below the two 45° torque measurement strain gauges 113. The length direction of the upper thrust measurement strain gauge 114 is consistent with the central axis direction of the stainless steel substrate 112, and the length direction of the lower thrust measurement strain gauge 114 is perpendicular to the central axis direction of the stainless steel substrate 112. The two thrust measurement strain gauges 114 are arranged on the central axis of the stainless steel substrate 112, forming a symmetrical structure.

[0073] Figure 4 yes Figure 3 Wiring diagram for the 45° torque measurement strain gauge. Figure 5 yes Figure 3 45° thrust measurement strain gauge wiring diagram. Further, as shown in the figure, two 45° torque measurement strain gauges 113 form six torque measurement contacts 115, and two thrust measurement strain gauges 114 form six thrust measurement contacts 116. The six torque measurement contacts 115 and the six thrust measurement contacts 116 are connected to the signal acquisition module 103.

[0074] Figure 6 The structure diagram of the signal acquisition module 103 of an embodiment of the present invention is shown. As shown in the figure, the signal acquisition module 103 includes a power supply unit 117, a signal processing unit 118 and a wireless transmission unit 119. The power supply unit 117 supplies power to the signal processing unit 118, and the signal processing unit 118 is used to provide an excitation voltage to the thrust torque measurement unit 107 and receive a detection signal from the thrust torque measurement unit 107. The signal processing unit 118 transmits the detection signal to the outside through the wireless transmission unit 119.

[0075] Preferably, the power supply unit, the signal processing unit and the wireless transmitting unit are packaged in one body.

[0076] The dynamic reusable thrust torque monitoring device provided by the present invention has the following advantages:

[0077] 1) Simultaneously monitor the thrust and torque of the transmission shaft without dismantling the original system structure;

[0078] 2) The monitoring device as a whole moves with the monitored object, and transmits detection signals to the outside through the wireless transmitting unit, without the need for external cables;

[0079] 3) Easy to install and disassemble, and can be reused.

[0080] It will be apparent to those skilled in the art that various modifications and variations may be made to the above exemplary embodiments of the present invention without departing from the spirit and scope of the present invention. Therefore, it is intended that the present invention covers modifications and variations of the present invention that fall within the scope of the appended claims and their equivalent technical solutions.

Claims

1. A dynamic reusable thrust torque monitoring device, suitable for a transmission shaft, comprising: The clamping device is annular and comprises a first half ring and a second half ring, wherein one end of the first half ring and the second half ring are connected by a hinge, and the other ends of the first half ring and the second half ring are connected by bolts, and the clamping device is used to clamp the transmission shaft; A measuring assembly, comprising a flexible base, on which two thrust torque measuring units are arranged at intervals, the flexible base being arranged along the circumference of the clamping device so that the two thrust torque measuring units are attached to the outer surface of the clamping device, and the two thrust torque measuring units are symmetrically arranged along the axis of the transmission shaft; The signal acquisition module is arranged on the clamping device and is used to receive the detection signal acquired by the thrust torque measurement unit and transmit it to the outside.

2. The dynamic reusable thrust torque monitoring device according to claim 1, characterized in that: The flexible base comprises a stainless steel sheet and two thickened stainless steel sheets, and the thickened stainless steel sheets are fixed by welding at both ends along the length direction of the stainless steel sheet; The thrust torque measuring unit is arranged on the surface of the stainless steel sheet; The two thickened stainless steel sheets are matched and fixed so that the two thrust torque measuring units are attached to the outer surface of the clamping device.

3. The dynamic reusable thrust torque monitoring device according to claim 2, characterized in that: The thickness of the stainless steel sheet is 0.05-0.1 mm.

4. The dynamic reusable thrust torque monitoring device according to claim 2, characterized in that: The thrust torque measuring unit is adhered to the surface of the stainless steel sheet.

5. The dynamic reusable thrust torque monitoring device according to claim 2, characterized in that: The distance between the central axes of the two thrust torque measuring units is equal to half of the outer circular circumference of the clamping device.

6. The dynamic reusable thrust torque monitoring device according to claim 5, characterized in that: Scale lines are set on the stainless steel sheet, and the thrust torque measurement unit is positioned and arranged based on the scale lines.

7. The dynamic reusable thrust torque monitoring device according to claim 2, characterized in that: Each of the thrust torque measuring units comprises a stainless steel base and two 45° torque measuring strain gauges and two thrust measuring strain gauges symmetrically arranged along the central axis of the stainless steel base.

8. The dynamic reusable thrust torque monitoring device according to claim 7, characterized in that: The thickness of the stainless steel substrate is 0.01-0.05 mm.

9. The dynamic reusable thrust torque monitoring device according to claim 7, characterized in that: The two 45° torque measurement strain gauges are arranged at intervals on both sides of the central axis of the stainless steel substrate.

10. The dynamic reusable thrust torque monitoring device according to claim 9, characterized in that: The two thrust measurement strain gauges are perpendicular to each other and spaced apart along their respective length directions.

11. The dynamic reusable thrust torque monitoring device according to claim 1, characterized in that: The signal acquisition module includes a power supply unit, a signal processing unit and a wireless transmitting unit. The power supply unit supplies power to the signal processing unit. The signal processing unit is used to provide an excitation voltage to the thrust torque measurement unit and receive a detection signal. The signal processing unit transmits the detection signal to the outside through the wireless transmitting unit.

12. The dynamic reusable thrust torque monitoring device according to claim 11, characterized in that: The power supply unit, the signal processing unit and the wireless transmitting unit are packaged in one body.

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