Aluminum alloy resistance strain gauge temperature compensation detection device

Abstract

The utility model relates to the field of aluminum alloy resistance strain gauges, and discloses an aluminum alloy resistance strain gauge temperature compensation detection device, which comprises a resistance strain gauge, the bottom of the resistance strain gauge is fixedly connected with supporting legs, the front side surface of the resistance strain gauge is provided with a connecting port, and the outside of the resistance strain gauge is provided with a detection device. And a clamping device is arranged outside the resistance strain gauge. The sliding block moves in the sliding groove, when the sliding block moves, the clamping plate is driven to move through the supporting rod, when the clamping plate moves, the clamping plate makes contact with an interface, so that the interface is clamped, when the clamping plate clamps the interface, the clamping plate can be fixed through the bolt and the nut, and the clamping plate is fixed through the bolt and the nut. The two clamping plates can be fixed by rotating and tightening the nuts on the bolts, so that the clamping plates can better clamp the interface, and the effect of preventing the interface from falling off in the using process is achieved.

Description

Technical Field

[0001] This utility model relates to the field of aluminum alloy resistance strain gauges, specifically to a temperature compensation detection device for aluminum alloy resistance strain gauges. Background Technology

[0002] Aluminum alloy resistance strain gauges, as sensitive elements that convert strain in structural components into changes in resistance, are widely used in critical scenarios such as structural stress monitoring and equipment condition assessment in numerous fields including aerospace, bridge construction, and machinery manufacturing. Their measurement accuracy directly affects the assessment of structural safety and operational status, and temperature is one of the core factors influencing this accuracy.

[0003] Existing technology, such as patent publication number CN115371540A, discloses a high-temperature resistant, low-power flexible thin-film resistance strain gauge. This includes using a glass fiber mesh-reinforced polyimide film as a substrate, coating the substrate surface with photoresist for photolithography to pattern the strain gauge; depositing a NiCr alloy thin film as a sensitive gate layer on the strain gauge pattern on the substrate; setting an anti-oxidation film layer on the sensitive gate; removing excess photoresist from the surface; and annealing to obtain the flexible thin-film resistance strain gauge. The resulting thin-film resistance strain gauge can operate normally in high-temperature environments of 200–400℃, exhibiting good reliability. Furthermore, its internal resistance can reach up to 3000Ω, significantly reducing power consumption. The strain gauge has a low temperature coefficient of resistance. Simultaneously, the use of photolithography and magnetron sputtering processes improves the processing accuracy and quality of the strain gauge, making it suitable for mass production.

[0004] While the aforementioned existing technologies have significant beneficial effects, they still have shortcomings:

[0005] Currently available resistance strain gauges are difficult to use to fix the detection device, preventing it from shifting or falling off under stress and ensuring that the interface is always connected to the interface to ensure smooth operation of subsequent operations. To address this, a temperature compensation detection device for aluminum alloy resistance strain gauges is proposed. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a temperature compensation detection device for an aluminum alloy resistance strain gauge. By starting the motor, when the output shaft of the motor rotates, it drives the rotating rod to rotate. When the rotating rod rotates, it drives the drive ring to rotate. When the drive ring rotates, it drives the fan blades to rotate. Thus, the air force generated by the rotating fan blades can blow out the heat generated by the resistance strain gauge during operation through the heat sink, preventing damage to the internal components of the resistance strain gauge due to excessive heat.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a temperature compensation detection device for an aluminum alloy resistance strain gauge, comprising a resistance strain gauge, a support leg fixedly connected to the bottom of the resistance strain gauge, a connection port provided on the front side of the resistance strain gauge, a detection device provided on the outside of the resistance strain gauge, and a clamping device provided on the outside of the resistance strain gauge; the clamping device includes a slide groove, the slide groove being formed on the front side of the resistance strain gauge, a slider slidably connected to the inner wall of the slide groove, a support rod fixedly connected to the top of the slider, and a clamping plate fixedly connected to the top of the support rod.

[0008] Preferably, the clamping plate has a through groove on its side, the inner wall of the through groove is threaded with a bolt, the circumferential surface of the bolt is threaded with a nut, and the inner wall of the slide groove is fixedly connected with a return spring. The end of the return spring away from the slide groove is fixedly connected to the side of the slider. The function of the return spring is to reset the clamping plate when it is released.

[0009] Preferably, the number of the slide, slider, support rod, clamping plate and return spring is set to two, and they are symmetrical to each other along the vertical central axis of the connection. The function of the support rod is to support the clamping plate.

[0010] Preferably, the number of through slots, bolts, and nuts is set to two, and they are symmetrical to each other along the vertical central axis of the connection. The clamping plate is arc-shaped. The resistance strain gauge includes an interface, one end of a wire is fixedly connected inside the interface, and the other end of the wire is fixedly connected to a detector. The bolts and nuts are used to better clamp the interface.

[0011] Preferably, the resistance strain gauge is equipped with a heat dissipation device, which includes a motor. The top of the motor is fixedly connected to the inside of the resistance strain gauge. The output shaft of the motor is fixedly connected to a rotating rod. A drive ring is fixedly connected to the circumferential surface of the rotating rod. A fan blade is fixedly connected to the circumferential surface of the drive ring. A slot is opened at the bottom of the resistance strain gauge, and a heat dissipation plate is fixedly connected to the inner wall of the slot.

[0012] Preferably, the number of fan blades is set to several, and they are arranged in a circumferential array along the circumference of the drive ring. The function of the drive ring is to drive the fan blades to rotate.

[0013] Preferably, the fan blades are arc-shaped and the heat sink is circular. The function of the fan blades is to blow out the heat inside the resistance strain gauge.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. This utility model utilizes a clamping device on a resistance strain gauge. A slider moves inside a groove, and as the slider moves, it drives the clamping plate to move via a support rod. When the clamping plate moves, it contacts the interface, thereby clamping the interface. When the clamping plate clamps the interface, it can be fixed with bolts and nuts. By rotating and tightening the nuts on the bolts, the two clamping plates can be fixed in place, thus allowing the clamping plates to better clamp the interface and preventing the interface from falling off during use.

[0016] 2. This utility model uses a heat dissipation device. When the motor is started, the output shaft of the motor rotates, which drives the rotating rod to rotate. When the rotating rod rotates, it drives the drive ring to rotate. When the drive ring rotates, it drives the fan blades to rotate. Thus, the wind force generated by the fan blades can blow out the heat generated by the resistance strain gauge during operation through the heat dissipation plate, preventing the internal parts of the resistance strain gauge from being damaged due to excessive heat.

[0017] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures pointed out in the description, claims, and drawings. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the main structure of the present utility model;

[0019] Figure 2 This is a cross-sectional view of the main structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the clamping device structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the heat dissipation device of this utility model;

[0022] Figure 5 This utility model Figure 3 3D magnified structural diagram at point A

[0023] Figure 6 This utility model Figure 3 A three-dimensional magnified structural diagram at point B.

[0024] In the diagram: 1. Resistance strain gauge; 2. Support leg; 3. Connection port; 4. Detection device; 5. Clamping device; 51. Slide groove; 52. Slider; 53. Support rod; 54. Clamping plate; 55. Through groove; 56. Bolt; 57. Nut; 58. Return spring; 6. Interface; 7. Wire; 8. Detector; 9. Heat dissipation device; 91. Motor; 92. Rotating rod; 93. Drive ring; 94. Fan blade; 95. Slot; 96. Heat dissipation plate. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1 - Figure 3 , Figure 5 , Figure 6 This embodiment of an aluminum alloy resistance strain gauge temperature compensation detection device includes a resistance strain gauge 1. A support leg 2 is fixedly connected to the bottom of the resistance strain gauge 1. A connection port 3 is provided on the front side of the resistance strain gauge 1. A detection device 4 is provided outside the resistance strain gauge 1. A clamping device 5 is provided outside the resistance strain gauge 1. The clamping device 5 includes a slide groove 51, which is located on the front side of the resistance strain gauge 1. A slider 52 is slidably connected to the inner wall of the slide groove 51. A support rod 53 is fixedly connected to the top of the slider 52. A clamping plate 54 is fixedly connected to the top of the support rod 53. A through groove 55 is provided on the side of the clamping plate 54. A bolt 56 is threadedly connected to the inner wall of the through groove 55. A nut 57 is threadedly connected to the circumferential surface of the bolt 56. A return spring 58 is fixedly connected to the inner wall of the slide groove 51. The end of spring 58 away from slide 51 is fixedly connected to the side of slider 52. The function of return spring 58 is to reset when clamping plate 54 is released. There are two slides 51, slider 52, support rod 53, clamping plate 54 and return spring 58, which are symmetrical about each other along the vertical central axis of connection port 3. The function of support rod 53 is to support clamping plate 54. There are two through slots 55, bolts 56 and nuts 57, which are symmetrical about each other along the vertical central axis of connection port 3. The shape of clamping plate 54 is arc-shaped. Resistance strain gauge 1 includes interface 6. One end of wire 7 is fixedly connected inside interface 6. The other end of wire 7 is fixedly connected to detector 8. The function of bolts 56 and nuts 57 is to better clamp interface 6.

[0027] like Figure 1 - Figure 3, Figure 5 , Figure 6 As shown, the aluminum alloy resistance strain gauge in this utility model is similar to existing aluminum alloy resistance strain gauges, such as the high-temperature resistant, low-power flexible thin-film resistance strain gauge disclosed in CN115371540A. The main improvement of this utility model is that the slider 52 moves inside the slide groove 51. When the slider 52 moves, it will drive the clamping plate 54 to move through the support rod 53. When the clamping plate 54 moves, it will contact the interface 6, thereby clamping the interface 6. When the clamping plate 54 clamps the interface 6, it can be fixed by bolts 56 and nuts 57. By rotating and tightening the nuts 57 on the bolts 56, the two clamping plates 54 can be fixed, so that the clamping plates 54 can better clamp the interface 6, thereby achieving the effect of preventing the interface 6 from falling off during use.

[0028] like Figure 2 , Figure 4 As shown, the resistance strain gauge 1 is equipped with a heat dissipation device 9, which includes a motor 91. The top of the motor 91 is fixedly connected to the inside of the resistance strain gauge 1. The output shaft of the motor 91 is fixedly connected to a rotating rod 92. A drive ring 93 is fixedly connected to the circumferential surface of the rotating rod 92. A fan blade 94 is fixedly connected to the circumferential surface of the drive ring 93. A slot 95 is opened at the bottom of the resistance strain gauge 1. A heat dissipation plate 96 is fixedly connected to the inner wall of the slot 95. The number of fan blades 94 is set to several and arranged in a circular array along the circumferential surface of the drive ring 93. The function of the drive ring 93 is to drive the fan blades 94 to rotate. The shape of the fan blades 94 is set to arc. The shape of the heat dissipation plate 96 is set to circle. The function of the fan blades 94 is to blow out the heat inside the resistance strain gauge 1.

[0029] like Figure 2 , Figure 4 As shown, by starting the motor 91, when the output shaft of the motor 91 rotates, it will drive the rotating rod 92 to rotate. When the rotating rod 92 rotates, it will drive the drive ring 93 to rotate. When the drive ring 93 rotates, it will drive the fan blade 94 to rotate. Thus, the wind force generated when the fan blade 94 rotates can blow out the heat generated by the resistance strain gauge 1 during operation through the heat sink 96, preventing the internal parts of the resistance strain gauge 1 from being damaged due to excessive heat.

[0030] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A temperature compensation detection device for an aluminum alloy resistance strain gauge, comprising a resistance strain gauge (1), characterized in that, The bottom of the resistance strain gauge (1) is fixedly connected to a support leg (2), the front side of the resistance strain gauge (1) is provided with a connection port (3), the outside of the resistance strain gauge (1) is provided with a detection device (4), and the outside of the resistance strain gauge (1) is provided with a clamping device (5). The clamping device (5) includes a slide groove (51), which is opened on the front side of the resistance strain gauge (1). A slider (52) is slidably connected to the inner wall of the slide groove (51). A support rod (53) is fixedly connected to the top of the slider (52), and a clamping plate (54) is fixedly connected to the top of the support rod (53).

2. The aluminum alloy resistance strain gauge temperature compensation detection device according to claim 1, characterized in that, The clamping plate (54) has a through groove (55) on its side. The inner wall of the through groove (55) is threaded with a bolt (56). The circumferential surface of the bolt (56) is threaded with a nut (57). The inner wall of the slide groove (51) is fixedly connected with a return spring (58). The end of the return spring (58) away from the slide groove (51) is fixedly connected to the side of the slider (52).

3. The aluminum alloy resistance strain gauge temperature compensation detection device according to claim 2, characterized in that, The number of the slide (51), slider (52), support rod (53), clamping plate (54) and return spring (58) is set to two, and they are symmetrical to each other along the vertical central axis of the connection port (3).

4. The aluminum alloy resistance strain gauge temperature compensation detection device according to claim 2, characterized in that, The number of the through slot (55), bolt (56) and nut (57) is set to two, and they are symmetrical to each other along the vertical central axis of the connection port (3). The clamping plate (54) is arc-shaped. The resistance strain gauge (1) includes an interface (6). One end of the wire (7) is fixedly connected inside the interface (6), and the other end of the wire (7) is fixedly connected to a detector (8).

5. The aluminum alloy resistance strain gauge temperature compensation detection device according to claim 1, characterized in that, The resistance strain gauge (1) is equipped with a heat dissipation device (9), which includes a motor (91). The top of the motor (91) is fixedly connected to the inside of the resistance strain gauge (1). The output shaft of the motor (91) is fixedly connected to a rotating rod (92). A drive ring (93) is fixedly connected to the circumferential surface of the rotating rod (92). A fan blade (94) is fixedly connected to the circumferential surface of the drive ring (93). A slot (95) is opened at the bottom of the resistance strain gauge (1). A heat dissipation plate (96) is fixedly connected to the inner wall of the slot (95).

6. The aluminum alloy resistance strain gauge temperature compensation detection device according to claim 5, characterized in that, The number of fan blades (94) is set to several, and they are arranged in a circular array along the circumference of the drive ring (93).

7. The aluminum alloy resistance strain gauge temperature compensation detection device according to claim 5, characterized in that, The fan blades (94) are arc-shaped, and the heat sink (96) is circular.

Images