Fixing device for realizing steady-state transmission of quantity value of sensor at high temperature

Abstract

The utility model belongs to the field of mechanical testing, and particularly relates to a fixing device for realizing steady-state transmission of sensor values at high temperature, which comprises an impact base and a sensor main body, a buffer pad is assembled on the impact base, a lower tray is assembled on the buffer pad, the impact base and the buffer pad are provided with assembling grooves, and connecting blocks are assembled in the assembling grooves. The connecting block is provided with a threaded sleeve, a fixing block, an operating rod, a fixing plate, an inserting rod, a movable hole, an operating arc block, an elastic spring, a guide rod and a push plate. According to the fixing device for realizing the steady-state transmission of the quantity value of the sensor at the high temperature, the problems that the high temperature of an existing comprehensive test is relatively high, the sensor is not firmly adhered due to the high temperature, and the signal transmission of the sensor is abnormal are solved through the matching of the threaded sleeve and the traction arc block.

Description

Technical Field

[0001] The utility model relates to the field of mechanical testing, in particular to a fixing device for realizing steady-state transmission of sensor values ​​at high temperatures. Background Art

[0002] A sensor is a detection device that can sense the information being measured and can convert the sensed information into electrical signals or other required forms of information output according to certain rules to meet the requirements of information transmission, processing, storage, display, recording and control. A sensor is generally composed of four parts: a sensitive element, a conversion element, a conversion circuit and an auxiliary power supply. The sensitive element directly senses the measured value and outputs a physical quantity signal that has a certain relationship with the measured value; the conversion element converts the physical quantity signal output by the sensitive element into an electrical signal; the conversion circuit is responsible for amplifying and modulating the electrical signal output by the conversion element; the conversion element and the conversion circuit generally also require an auxiliary power supply.

[0003] Mechanical and climate environment tests conducted in the laboratory use various types of sensors to detect the stress of the test object. Sensors commonly used in mechanical tests on impact tables have the characteristics of large range, wide frequency band, high working reliability and simple structure. In order to further ensure the controllability of the test process, the selection of the model, installation location and installation method of the acceleration sensor is particularly important. However, the existing sensors used for impact testing still have the following problems during use:

[0004] The existing mechanical test on the impact table uses the gluing method to fix the sensor. Due to the high temperature of the comprehensive test, the high temperature causes the sensor to be loosely adhered, causing abnormal sensor signal transmission, affecting the reliable connection of the sensor, and affecting the true and steady-state transmission of the output signal. Therefore, it is very necessary to involve a fixing device that can realize the steady-state transmission of sensor values ​​under high temperature in the existing mechanical testing field. Utility Model Content

[0005] In order to make up for the shortcomings of the existing technology, the existing mechanical test of the impact table adopts the gluing method to fix the sensor. Since the high temperature of the comprehensive test is relatively high, the high temperature causes the sensor to be loosely adhered, causing abnormal sensor signal transmission, affecting the reliable connection of the sensor, and affecting the real and steady-state transmission of the output signal. The utility model proposes a fixing device that realizes the steady-state transmission of sensor values ​​under high temperature.

[0006] The utility model solves the technical problem by adopting the following technical solution: a fixing device for realizing steady-state transmission of sensor value at high temperature, comprising an impact base and a sensor body, wherein a buffer pad is fixedly mounted on the impact base, a lower tray is fixedly mounted on the buffer pad, an assembly groove is arranged on the impact base and the buffer pad, connecting blocks are fixedly mounted on two symmetrical inner walls of the assembly groove, a threaded sleeve is fixedly mounted on the bottom of the connecting block, a fixing block is fixedly mounted on the top of the connecting block, an operating rod is movably mounted on the fixing block, one end of the operating rod is fixedly mounted on a fixing plate, and a plurality of fixing plates are fixedly mounted on the fixing plate. The plug rod and the connecting block are penetrated with a plurality of movable holes, the movable holes are respectively close to the plug rod, the other end of the operating rod is fixedly equipped with an operating arc block, the operating rod is equipped with an elastic spring, the two ends of the elastic spring are respectively fixedly assembled with the fixed plate and the fixed block, the connecting block is movably equipped with a guide rod, the bottom of the guide rod is fixedly equipped with a push plate, the push plate is located on the inner side of the threaded sleeve, the guide rod is equipped with a telescopic spring, the two ends of the telescopic spring are respectively fixedly assembled with the inner wall of the threaded sleeve and the push plate, the top of the guide rod is fixedly equipped with a traction arc block, the traction arc block corresponds to the operating arc block.

[0007] Preferably, the symmetrical sides of the sensor body are fixedly equipped with fitting blocks, one end of the fitting block is provided with a guide groove, the guide groove is penetrated by a threaded hole, the threaded hole is equipped with an adjusting sleeve, the adjusting sleeve is provided with a threaded traction groove, the threaded traction groove on the adjusting sleeve is threadedly assembled with the threaded hole, the adjusting sleeve is provided with an internal thread groove, the internal thread groove on the adjusting sleeve is threadedly assembled with the threaded sleeve, the inner wall of the internal thread groove on the adjusting sleeve is fixedly equipped with a push block, and the push blocks are fitted with the push plate.

[0008] Preferably, a plurality of assembly rods are fixedly mounted on the bonding block, the assembly rods are located on one side of the guide groove, the assembly rods are movably assembled with the movable holes, the assembly rods are penetrated by assembly holes, and one end of the insertion rod is plugged into the assembly hole on the assembly rod.

[0009] Preferably, the impact base is symmetrically fixed with vertical rods, which are located on both sides of the buffer pad and the lower tray, top blocks are fixedly installed on the top of the two vertical rods, a support block is fixedly installed on the top block, a cylinder is fixedly installed on the support block, a piston rod is fixedly installed on the output end of the cylinder, the piston rod movably passes through the support block, and a mounting frame is fixedly installed on the bottom of the piston rod, a cross plate is fixedly installed on the bottom of the mounting frame, a mounting frame is fixedly installed on the bottom of the cross plate, guide blocks are movably installed on the two vertical rods, slots are provided on the sides of the guide blocks, an impact head is fixedly installed on the bottom of the guide block, the impact head is located above the lower tray, a scale is fixedly installed on the mounting frame, and the scale is movably assembled with the support block.

[0010] Preferably, the inner wall of the installation frame is symmetrically fixed with connecting rods, and sliding blocks are movably mounted on the connecting rods. An elliptical frame is fixedly mounted on the bottom of the two sliding blocks, and traction racks are fixedly mounted on the two symmetrical inner walls of the elliptical frame. An operating motor is fixedly mounted on the horizontal plate, and the operating motor is located on the inner side of the installation frame. A rotating rod is fixedly mounted on the output end of the operating motor, and the rotating rod movably passes through the horizontal plate, and a fan gear is fixedly mounted on the bottom of the rotating rod, and the fan gear is located between the two traction racks, and the fan gear is only toothed with one of the traction racks.

[0011] Preferably, a vertical block is fixedly mounted on the bottom of the elliptical frame, an insert block is fixedly mounted on the vertical block, and the insert block is plugged into the slot.

[0012] The utility model is beneficial in that:

[0013] The utility model installs the sensor body in the assembly groove, and the fitting block on the sensor body is fitted with the connecting block. At this time, the assembly rod is inserted into the movable hole on the connecting block, and the threaded hole on the guide groove is rotated to move the adjustment sleeve until one end of the adjustment sleeve is fitted with the connecting block. At this time, the fixed block pushes the push plate to move, the telescopic spring contracts, the guide rod drives the traction arc block to move upward, the traction arc block pushes the operating arc block to move, the operating rod moves in the fixed block, the elastic spring is stretched, and the insertion rod on the fixed plate is inserted into the assembly hole on the assembly rod, so that the sensor body is fixed, avoiding high temperature causing the sensor body to be loosely adhered, causing the sensor body to transmit abnormal signals, so that the sensor body is reliably connected and the output signal is truly and steadily transmitted. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 This is a schematic diagram of the impact table structure of the utility model;

[0016] Figure 2 This is a schematic cross-sectional structural diagram of the impact platform of the utility model;

[0017] Figure 3 This is a schematic cross-sectional structural diagram of the impact base of the utility model;

[0018] Figure 4 It is a schematic diagram of the cross-sectional structure of the sensor and impact base assembly of the utility model.

[0019] In the figure:

[0020] 10. Impact base; 11. Vertical rod; 12. Top block; 13. Support block;

[0021] 20. Cylinder; 21. Piston rod; 22. Mounting frame; 23. Horizontal plate;

[0022] 30. Mounting frame; 31. Operating motor; 32. Scale; 33. Guide block;

[0023] 40. impact head; 41. buffer pad; 42. lower tray; 43. connecting rod;

[0024] 50. Sliding block; 51. Elliptical frame; 52. Traction rack; 53. Rotating rod;

[0025] 60, sector gear; 61, vertical block; 62, slot; 63, plug block;

[0026] 70. Assembly groove; 71. Sensor body; 72. Connection block; 73. Lamination block;

[0027] 80. guide groove; 81. threaded hole; 82. adjusting sleeve; 83. threaded traction groove; 84. operating arc block; 85. insert rod; 86. movable hole; 87. assembly rod; 88. assembly hole; 89. elastic spring;

[0028] 90. Internal thread groove; 91. Threaded sleeve; 92. Guide rod; 93. Push plate; 94. Traction arc block; 95. Telescopic spring; 96. Push block; 97. Fixed block; 98. Operating rod; 99. Fixed plate. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] The following is combined with Figure 1 —4 further details of this application,

[0031] The present application embodiment discloses a fixing device for realizing steady-state transmission of sensor value at high temperature. Figure 3 and Figure 4A fixing device for realizing steady-state transmission of sensor value at high temperature comprises an impact base 10 and a sensor body 71, wherein a buffer pad 41 is fixedly assembled on the impact base 10, a lower tray 42 is fixedly assembled on the buffer pad 41, an assembly groove 70 is provided on the impact base 10 and the buffer pad 41, and connecting blocks 72 are fixedly assembled on the symmetrical inner walls of the assembly groove 70, a threaded sleeve 91 is fixedly assembled on the bottom of the connecting block 72, a fixing block 97 is fixedly assembled on the top of the connecting block 72, an operating rod 98 is movably assembled on the fixing block 97, a fixing plate 99 is fixedly assembled on one end of the operating rod 98, a plurality of plug rods 85 are fixedly assembled on the fixing plate 99, a plurality of movable holes 86 are penetrated on the connecting block 72, and the movable holes 86 correspond to the corresponding The near-insertion rod 85 and the other end of the operating rod 98 are fixedly equipped with an operating arc block 84, an elastic spring 89 is fixedly equipped between the fixed plate 99 and the fixed block 97, the operating rod 98 is assembled on the inner side of the elastic spring 89, and a guide rod 92 is movably equipped on the connecting block 72. The bottom of the guide rod 92 is fixedly equipped with a push plate 93 located on the inner side of the threaded sleeve 91, and a telescopic spring 95 is fixedly equipped between the inner wall of the threaded sleeve 91 and the push plate 93. The guide rods 92 are assembled on the inner side of the telescopic spring 95, and the top of the guide rods 92 is fixedly equipped with a traction arc block 94 that fits with the operating arc block 84. The symmetrical sides of the sensor body 71 are fixedly equipped with fitting blocks 73, and one end of the fitting block 73 is provided with a guide groove 80. The guide groove 80 A threaded hole 81 is provided through the guide groove 80, and an adjusting sleeve 82 is provided on the guide groove 81. A threaded traction groove 83 is provided on the adjusting sleeve 82. The threaded traction groove 83 on the adjusting sleeve 82 is threadedly assembled with the threaded hole 81. The adjusting sleeve 82 is provided with an internal threaded groove 90 that is threadedly assembled with the threaded sleeve 91. The inner wall of the internal threaded groove 90 on the adjusting sleeve 82 is fixedly equipped with a push block 96 that is fitted with the push plate 93. A plurality of assembly rods 87 are fixedly equipped on the fitting block 73. The assembly rod 87 is located on one side of the guide groove 80. The assembly rod 87 is movably assembled with the movable hole 86. The assembly rod 87 is provided with an assembly hole 88, and one end of the insertion rod 85 is plugged into the assembly hole 88 on the assembly rod 87. The sensor body 71 is installed in the assembly groove 70, and the fitting block 73 on the sensor body 71 is fitted with the connecting block 72. At this time, the assembly rod 87 is inserted into the movable hole 86 on the connecting block 72, and the threaded hole 81 on the guide groove 80 is rotated to move the adjustment sleeve 82 until one end of the adjustment sleeve 82 is fitted with the connecting block 72. At this time, the fixed block 97 pushes the push plate 93 to move, and the telescopic spring 95 contracts. The guide rod 92 drives the traction arc block 94 to move upward, and the traction arc block 94 pushes the operating arc block 84 to move, allowing the operating rod 98 to move in the fixed block 97, and the elastic spring 89 is stretched. The insertion rod 85 on the fixed plate 99 is correspondingly inserted into the assembly hole 88 on the assembly rod 87, so that the sensor body 71 is fixed.Avoid high temperature causing the sensor body 71 to be loosely adhered, causing the sensor body 71 to transmit abnormal signals, so that the sensor body 71 is reliably connected and the output signal is truly and steadily transmitted.

[0032] Reference Figure 1 and Figure 2 The impact base 10 is symmetrically fixed with vertical rods 11, which are located on both sides of the buffer pad 41 and the lower tray 42. The tops of the two vertical rods 11 are fixedly equipped with top blocks 12, and the top blocks 12 are fixedly equipped with support blocks 13. The support blocks 13 are fixedly equipped with cylinders 20. The output end of the cylinder 20 is fixedly equipped with piston rods 21, and the piston rods 21 movably penetrate the support blocks 13. The bottom of the piston rods 21 is fixedly equipped with a mounting frame 22, and the bottom of the mounting frame 22 is fixedly equipped with a horizontal plate 23. The bottom of the horizontal plate 23 is fixedly equipped with a mounting frame 30. The two vertical rods 11 are movably equipped with guide blocks 33, and the guide blocks 33 are fixedly equipped with guide blocks 33. The side of the guide block 33 is provided with a slot 62, the bottom of the guide block 33 is fixedly equipped with an impact head 40, the impact head 40 is located above the lower tray 42, the mounting frame 30 is fixedly equipped with a scale 32 that moves on the support block 13, the inner wall of the mounting frame 30 is symmetrically fixedly equipped with connecting rods 43, and the connecting rods 43 are movably equipped with sliding blocks 50, the bottoms of the two sliding blocks 50 are fixedly equipped with elliptical frames 51, and the symmetrical inner walls of the elliptical frames 51 are fixedly equipped with traction racks 52, and the cross plate 23 is fixedly equipped with an operating motor 31, the operating motor 31 is located on the inner side of the mounting frame 22, and the output end of the operating motor 31 is fixedly A rotating rod 53 is fixedly mounted, and the rotating rod 53 movably penetrates the horizontal plate 23, and a fan-shaped gear 60 is fixedly mounted at the bottom of the rotating rod 53, and the fan-shaped gear 60 is located between the two traction racks 52, and the fan-shaped gear 60 is only toothed with one of the traction racks 52. A vertical block 61 is fixedly mounted at the bottom of the elliptical frame 51, and an insert block 63 is fixedly mounted on the vertical block 61 to be plugged into the slot 62. The object to be measured is placed on the lower tray 42, and according to the known measurement height, the cylinder 20 is started, so that the piston rod 21 drives the mounting frame 22 to move, and the insert block 63 drives the guide block 33 to move on the two vertical rods 11. The scale 32 moves on the support block 13, and the value on the scale 32 is displayed on the support block 13 accordingly, that is, the measured height. The operating motor 31 is started, and the rotating rod 53 drives the sector gear 60 to rotate. The sector gear 60 is only toothed with one of the traction racks 52, so that the elliptical frame 51 reciprocates on the connecting rod 43 through the sliding block 50. The elliptical frame 51 drives the plug block 63 on the vertical block 61 away from the slot 62, so that the slot 62 is no longer restricted. Under the gravity of the guide block 33 and the impact head 40, the impact head 40 impacts the object to be measured on the lower tray 42.

[0033] Working principle: the sensor body 71 is installed in the assembly groove 70, and the fitting block 73 on the sensor body 71 corresponds to the connecting block 72. At this time, the assembly rod 87 is correspondingly inserted into the movable hole 86 on the connecting block 72, and the threaded hole 81 on the guide groove 80 rotates and moves the adjustment sleeve 82 until one end of the adjustment sleeve 82 fits with the connecting block 72. At this time, the fixed block 97 pushes the push plate 93 to move, and the telescopic spring 95 contracts. The guide rod 92 drives the traction arc block 94 to move upward, and the traction arc block 94 pushes the operating arc block 84 to move, allowing the operating rod 98 to move in the fixed block 97, and the elastic spring 89 is stretched. The insertion rod 85 on the fixed plate 99 is correspondingly inserted into the assembly hole 88 on the assembly rod 87, so that the sensor body 71 is fixed to avoid high temperature causing the sensor body 71 to be loosely adhered, causing the sensor body 71 to transmit abnormal signals, so that the sensor body 71 can be reliably connected and output signals. The real and steady-state transmission of the signal, the object to be measured is placed on the lower tray 42, and according to the known measurement height, the cylinder 20 is started, so that the piston rod 21 drives the mounting frame 22 to move, the plug block 63 drives the guide block 33 to move on the two vertical rods 11, and the scale 32 moves on the support block 13. The value on the scale 32 is correspondingly displayed on the support block 13, that is, the measured height, and the operating motor 31 is started. The rotating rod 53 drives the fan gear 60 to rotate, and the fan gear 60 is only toothed with one of the traction racks 52, so that the elliptical frame 51 reciprocates on the connecting rod 43 through the sliding block 50, and the elliptical frame 51 drives the plug block 63 on the vertical block 61 away from the slot 62, so that the slot 62 is no longer restricted. Under the gravity of the guide block 33 and the impact head 40, the impact head 40 impacts the object to be measured on the lower tray 42, and the impact effect is buffered and fed back to the sensor body 71 through the buffer pad 41.

[0034] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A fixing device for realizing steady-state transmission of sensor value at high temperature, characterized in that: The sensor comprises an impact base (10) and a sensor body (71), wherein a buffer pad (41) is fixedly mounted on the impact base (10), a lower tray (42) is fixedly mounted on the buffer pad (41), an assembly groove (70) is provided on the impact base (10) and the buffer pad (41), a connecting block (72) is fixedly mounted on two symmetrical inner walls of the assembly groove (70), a threaded sleeve (91) is fixedly mounted on the bottom of the connecting block (72), a fixed block (97) is fixedly mounted on the top of the connecting block (72), an operating rod (98) is movably mounted on the fixed block (97), a fixing plate (99) is fixedly mounted on one end of the operating rod (98), a plurality of plug rods (85) are fixedly mounted on the fixing plate (99), a plurality of movable holes (86) are penetrated through the connecting block (72), and the movable holes (86) are ) corresponds to the insertion rod (85), the other end of the operating rod (98) is fixedly assembled with an operating arc block (84), the operating rod (98) is equipped with an elastic spring (89), the two ends of the elastic spring (89) are respectively fixedly assembled with the fixed plate (99) and the fixed block (97), the connecting block (72) is movably assembled with a guide rod (92), the bottom of the guide rod (92) is fixedly assembled with a push plate (93), the push plate (93) is located on the inner side of the threaded sleeve (91), the guide rod (92) is equipped with a telescopic spring (95), the two ends of the telescopic spring (95) are respectively fixedly assembled with the inner wall of the threaded sleeve (91) and the push plate (93), the top of the guide rod (92) is fixedly assembled with a traction arc block (94), and the traction arc block (94) is correspondingly fitted with the operating arc block (84).

2. A fixing device for realizing steady-state transmission of sensor value at high temperature according to claim 1, characterized in that: The symmetrical sides of the sensor body (71) are fixedly assembled with fitting blocks (73), one end of the fitting block (73) is provided with a guide groove (80), the guide groove (80) is penetrated with a threaded hole (81), the threaded hole (81) is equipped with an adjusting sleeve (82), the adjusting sleeve (82) is provided with a threaded traction groove (83), the threaded traction groove (83) on the adjusting sleeve (82) is threadedly assembled with the threaded hole (81), the adjusting sleeve (82) is provided with an internal thread groove (90), the internal thread groove (90) on the adjusting sleeve (82) is threadedly assembled with the threaded sleeve (91), the inner wall of the internal thread groove (90) on the adjusting sleeve (82) is fixedly assembled with a push block (96), and the push block (96) is fitted with the push plate (93).

3. A fixing device for realizing steady-state transmission of sensor value at high temperature according to claim 2, characterized in that: A plurality of assembly rods (87) are fixedly mounted on the fitting block (73). The assembly rods (87) are located on one side of the guide groove (80). The assembly rods (87) are movably assembled with the movable holes (86). The assembly rods (87) are all penetrated by assembly holes (88). One end of the insertion rod (85) is plugged into the assembly hole (88) on the assembly rod (87).

4. The fixing device for realizing steady-state transmission of sensor value at high temperature according to claim 1, characterized in that: The impact base (10) is symmetrically fixedly equipped with vertical rods (11), the vertical rods (11) are located on both sides of the buffer pad (41) and the lower tray (42), the tops of the two vertical rods (11) are fixedly equipped with top blocks (12), the top blocks (12) are fixedly equipped with support blocks (13), the support blocks (13) are fixedly equipped with cylinders (20), the output end of the cylinder (20) is fixedly equipped with piston rods (21), the piston rods (21) movably penetrate the support blocks (13), and the bottom of the piston rods (21) is fixedly equipped with mounting brackets (22), a horizontal plate (23) is fixedly mounted on the bottom of the mounting frame (22), a mounting frame (30) is fixedly mounted on the bottom of the horizontal plate (23), a guide block (33) is movably mounted on the two vertical rods (11), a slot (62) is arranged on the side of the guide block (33), an impact head (40) is fixedly mounted on the bottom of the guide block (33), the impact head (40) is located above the lower tray (42), a scale (32) is fixedly mounted on the mounting frame (30), and the scale (32) is movably mounted on the support block (13).

5. A fixing device for realizing steady-state transmission of sensor value at high temperature according to claim 4, characterized in that: The inner wall of the installation frame (30) is symmetrically fixedly equipped with connecting rods (43), and sliding blocks (50) are movably equipped on the connecting rods (43). The bottoms of the two sliding blocks (50) are fixedly equipped with elliptical frames (51), and the symmetrical inner walls of the elliptical frames (51) are fixedly equipped with traction racks (52). The cross plate (23) is fixedly equipped with an operating motor (31), and the operating motor (31) is located on the inner side of the installation frame (22). The output end of the operating motor (31) is fixedly equipped with a rotating rod (53), and the rotating rod (53) movably penetrates the cross plate (23). A fan-shaped gear (60) is fixedly equipped at the bottom of the rotating rod (53), and the fan-shaped gear (60) is located between the two traction racks (52), and the fan-shaped gear (60) is toothedly assembled with only one of the traction racks (52).

6. A fixing device for realizing steady-state transmission of sensor value at high temperature according to claim 5, characterized in that: A vertical block (61) is fixedly mounted on the bottom of the elliptical frame (51), an inserting block (63) is fixedly mounted on the vertical block (61), and the inserting block (63) is plugged into the slot (62).

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