A comprehensive performance testing device for dampers

Abstract

The present invention discloses a comprehensive performance testing device for dampers, which relates to the field of comprehensive performance testing devices for dampers. The device includes a test bench, above which there are a loading tray and a test transfer mechanism. On one side of the test bench, there is a frame, and on the frame, there is a conveyor belt. The middle section of the conveyor belt is recessed downward to form a recessed area, and both sides of the recessed area have slopes. In the present invention, the provided test transfer mechanism can complete the transfer of the spring from the position of the loading tray to the conveyor belt, and the test transfer mechanism can also perform compression and tensile tests on the spring under normal temperature or required temperature conditions to judge the comprehensive performance of the spring, so as to judge whether the comprehensive performance of the damper using the spring meets the standard.

Description

Technical Field

[0001] The present invention relates to the field of comprehensive performance testing devices for dampers, and particularly to a comprehensive performance testing device for dampers. Background Art

[0002] A damper is a device that provides resistance to motion and dissipates motion energy. Various dampers (or shock absorbers) have long been used in industries such as aerospace, aviation, military, guns, and automobiles to reduce vibration and dissipate energy.

[0003] A damper is also a device that can quickly stop the movable part of an instrument at a stable deflection position. In seismic instruments, dampers are used to absorb the inherent vibration energy of the vibration system, and their damping force is generally proportional to the velocity of the motion of the vibration system. There are mainly three types: liquid dampers, gas dampers, and electromagnetic dampers. Dampers play an important role in compensating for very small friction and air resistance in the pendulum system of a seismograph and improving the frequency response, etc.

[0004] In civil engineering construction, dampers are usually used as dampers to reduce the vibration of equipment. When a damper is used, its comprehensive performance is crucial, and the comprehensive performance of the damper is mainly determined by the comprehensive performance of the spring provided inside it.

[0005] In the prior art, when measuring the comprehensive performance of a spring, it is usually directly compressed or stretched to test the tensile and compressive properties of the spring. However, the influence of ambient temperature on the elastic properties is usually ignored.

[0006] Therefore, a comprehensive performance testing device for dampers is proposed to determine whether the comprehensive performance of a damper meets the standard by testing the comprehensive performance of the spring. Summary of the Invention

[0007] The purpose of the present invention is to provide a comprehensive performance testing device for dampers to solve the problems raised in the above background art.

[0008] To achieve the above object, the present invention provides the following technical solution: A comprehensive performance testing device for a damper, including a test bench, above which there are a loading tray and a test transfer mechanism. On one side of the test bench, there is a frame, on which there is a conveyor belt. The middle section of the conveyor belt is recessed downward to form a recessed area, and there are slopes on both sides of the recessed area. The test transfer mechanism is arranged between the loading tray and the conveyor belt. The test transfer mechanism includes a second slide rail, a first slide rail, a second slider, a first slider, a manipulator, a test metal reference rod, a first support plate, a third slider, a third slide rail, a first cylinder, a second cylinder, a sleeve plate and a positioning connection plate. The second slide rail is distributed along the conveying direction of the conveyor belt. The first slide rail is perpendicular to the second slide rail. The first slide rail is fixedly installed on the upper surface of the test bench. The first slider is slidably arranged on the first slide rail. The upper end of the first slider is fixedly connected to one side of the second slide rail through an L-shaped connection plate. The L-shaped connection plate is provided with reinforcing rib plates. The second slider is slidably arranged on the second slide rail. The manipulator is connected to the lower end of the second slider. The third slide rail and the second cylinder are both fixedly installed on the upper surface of the test bench. A third slider is slidably arranged on the third slide rail. One end of the third slide rail is provided with a first cylinder for driving the third slider to move along the third slide rail. The sleeve plate is fixedly welded to the upper surface of the third slider. The positioning connection plate is fixedly connected to the telescopic end of the second cylinder. The positioning connection plate is connected to the test metal reference rod. The sleeve plate is provided with a movable hole for the test metal reference rod to pass through. The end of the test metal reference rod away from the positioning connection plate is close to the first support plate. The spring to be detected is movably sleeved on the test metal reference rod, and the spring to be detected is located between the sleeve plate and the manipulator. Springs are placed on the loading tray.

[0009] Preferably, there are multiple groups of the loading trays, and the multiple groups of loading trays are arranged side by side. The springs placed on the loading trays are also arranged side by side.

[0010] The test transfer mechanism provided in the present invention can complete the transfer of the spring from the position of the loading tray to the conveyor belt, and the test transfer mechanism can also perform compression and tensile tests on the spring under normal temperature or required temperature conditions to judge the comprehensive performance of the spring, so as to judge whether the comprehensive performance of the damper using the spring meets the standard.

[0011] During operation, the loading tray is detachably arranged on the test bench for convenient loading and unloading. After arranging multiple groups of springs side by side on the loading tray, the loading tray is placed on the upper surface of the test bench. Then, the first slider on the first slide rail is started, and the first slider moves along the first slide rail, thereby controlling the second slide rail and the manipulator to reach one side of the corresponding loading tray. The second slider is controlled to move along the second slide rail, thereby controlling the manipulator to move from the loading tray to the conveyor belt position. When the manipulator moves above the loading tray, the manipulator clamps the corresponding spring. When the manipulator moves to the position of the test metal reference rod, by starting the second cylinder to push the positioning connecting plate to move away from the electric heater, since the test metal reference rod is fixedly connected to the positioning connecting plate and the test metal reference rod is movably engaged at the end of the heat preservation pipeline, the test metal reference rod synchronously moves away from the electric heater, and the end of the test metal reference rod away from the positioning connecting plate is moved to the side of the manipulator close to the positioning connecting plate. At this time, the spring clamped by the manipulator can be aligned with the end of the test metal reference rod, and then the test metal reference rod is reset, and the spring can be automatically sleeved on the test metal reference rod.

[0012] During detection, when the manipulator moves through the cooperation structure between the first slide rail and the first slider, the manipulator can compress or stretch the spring to be detected, realizing the detection of compression or stretching of the spring to be detected. A corresponding force sensor is arranged on the manipulator to measure the current compression or stretching force, which is a common existing technology and will not be elaborated here. When the first cylinder drives the third slider above the third slide rail to move, the third slider realizes the further detection of compression or stretching of the spring to be detected by using the limiting effect of the sleeve plate on the end of the spring to be detected.

[0013] In the device, multiple groups of loading trays are provided, which can be conveniently replaced when the springs on one group of loading trays are detected, and it does not affect the continuous detection operation of the device. The supply device continuously detects the springs, improving the detection efficiency.

[0014] After the spring on the test metal reference rod is detected, the spring on the test metal reference rod is taken out by the manipulator, and then the manipulator is driven to move towards the conveyor belt direction, and the spring is placed on the conveyor belt for further screening and detection.

[0015] The conveyor belt is provided with a recessed area, which is convenient for screening out the springs that are missed by the machine or unqualified in other cases. Specifically, the surface of the conveyor belt has an anti-slip surface, and there is sufficient frictional resistance between the conveyor belt and the spring. The spring on the conveyor belt passes through the slopes on both sides of the recessed area during the transmission process. If the weight of the spring exceeds the set standard, the spring will slide too fast during the downhill process, and the spring will roll backward during the uphill process. Therefore, the recessed area can be used to quickly screen out the springs whose weight exceeds the set standard.

[0016] The above-mentioned first slide rail and second slide rail are both common existing driving parts, which will not be elaborated here.

[0017] Preferably, a pair of clamping plates are arranged at the lower end of the manipulator, and protrusions for clamping and restricting the spring to be detected are fixedly arranged on the mutually approaching surfaces of the pair of clamping plates.

[0018] Furthermore, the pair of clamping plates can clamp and fix the spring, and the clamping plates can be clamped and restricted at the gap of the spring to be detected to realize the positioning of the end of the spring to be detected.

[0019] Preferably, an air cavity is arranged inside the test metal reference rod, an electric heater is fixedly installed on one side of the upper surface of the test bench, the end of the electric heater is connected with a heat preservation pipeline, one end of the heat preservation pipeline is fixedly supported on the second support plate, the other end of the heat preservation pipeline is fixedly supported on the first support plate, one end of the test metal reference rod close to the first support plate is clamped at the end of the heat preservation pipeline, and the air cavity inside the test metal reference rod is communicated with the heat preservation pipeline.

[0020] The electric heater can heat the air in the heat preservation pipeline, and the heat preservation pipeline is communicated with the air cavity, so that the air in the air cavity is also heated at the same time. When the air is heated, the heat is transferred to the spring to be detected through the wall of the test metal reference rod, realizing the heating purpose of the spring to be detected and the detection during the heating of the spring to be detected.

[0021] Preferably, an air vent is arranged on the surface of the positioning connecting plate away from the test metal reference rod, a connecting round hole is arranged on the surface of the positioning connecting plate close to the test metal reference rod, one end of the test metal reference rod away from the first support plate is clamped in the connecting round hole, a screw is arranged on the positioning connecting plate, a screw rod is integrally arranged at the end of the screw, and the end of the screw rod simultaneously extends into the air vent and one end of the air cavity close to the positioning connecting plate, and the air cavity, the air vent and the screw rod are connected by thread fit.

[0022] In order to fix the test metal reference rod and the positioning connecting plate, a screw is provided, and the test metal reference rod is fixed on the connecting round hole on the surface of the positioning connecting plate by using the screw, which is convenient for connection and use.

[0023] Preferably, a pressure relief channel is arranged on the screw, and the pressure relief channel is communicated between the air cavity and the outside of the screw.

[0024] In order to avoid the situation that the test metal reference rod bursts due to too high temperature of the air in the air cavity, a pressure relief channel is arranged on the screw to ensure that the heat can be discharged and avoid the situation of too high temperature inside the air cavity.

[0025] Preferably, a stainless - steel explosion - proof sheet is provided at one end of the pressure - relief channel communicating with the air chamber. The stainless - steel explosion - proof sheet is fixedly welded to the inner wall of the pressure - relief channel, and a cross - shaped slit is provided on the stainless - steel explosion - proof sheet.

[0026] To prevent a large amount of hot air in the air chamber from being discharged through the pressure - relief channel and thus unable to heat the spring to be detected properly, a stainless - steel explosion - proof sheet is provided at the end of the pressure - relief channel. When the temperature of the hot air inside the air chamber rises to a certain level, its pressure value is too high, which will cause the stainless - steel explosion - proof sheet to burst at the position of the cross - shaped slit, achieving the purpose of pressure - relief and heat dissipation. It can control the temperature of the hot air in the air chamber to always be within the set threshold. The stainless - steel explosion - proof sheet can be elastically deformed. When the stainless - steel explosion - proof sheet bursts and discharges the hot air in the air chamber, the cross - shaped slit on the stainless - steel explosion - proof sheet can be reset and sealed again.

[0027] Preferably, a magnetic suction block is fixedly welded to the inner wall of the air chamber near the positioning connecting plate, and the magnetic suction block attracts the stainless - steel explosion - proof sheet.

[0028] Furthermore, the magnetic suction block attracts the stainless - steel explosion - proof sheet, thus increasing the resistance when the stainless - steel explosion - proof sheet bursts, and increasing the maximum value of the gas temperature in the air chamber. By rotating the screw to control the distance between the magnetic suction block and the stainless - steel explosion - proof sheet, the suction force between the magnetic suction block and the stainless - steel explosion - proof sheet can also be adjusted, achieving the purpose of controlling the resistance when the stainless - steel explosion - proof sheet bursts, and thus controlling the gas inside the air chamber to be heated to an appropriate maximum temperature threshold.

[0029] Preferably, a guide plate is fixedly welded to the upper surface of the test bench. The guide plate is located on the side of the third slide rail away from the second cylinder. One end of the positioning connecting plate away from the second cylinder is fixedly connected with a guide rod, and the guide rod movably passes through the guide plate.

[0030] Among them, when the second cylinder drives the positioning connecting plate to move, the end of the positioning connecting plate away from the second cylinder extends and retracts in the guide plate through the guide rod. The guide plate and the guide rod guide and stabilize the movement of the test metal reference rod, making it easy for the test metal reference rod to extend from the end of the spring.

[0031] Preferably, a magnetic rod is fixedly installed on the frame. The magnetic rod is located above the conveyor belt, and multiple groups of magnetic rods are provided.

[0032] It should be noted that there may still be some springs with unqualified quality after testing and transported to the conveyor belt, such as those with a lighter weight. Therefore, magnetic rods are provided on the frame. There is a certain height between the magnetic rods and the conveyor belt. When the weight of the spring is lower than the specified standard, the spring can be adsorbed onto the magnetic rods, thus achieving automatic screening and facilitating the staff to collect the springs with unqualified quality for remanufacturing.

[0033] In actual use, the height of the magnetic rod is adjustable, which is convenient for adjusting to a suitable height according to different spring specifications to be detected. The height of the magnetic rod should be such that it can just adsorb the springs with weights lower than the specified standard.

[0034] Technical effects and advantages of the present invention:

[0035] 1. A comprehensive performance testing device for a damper according to the present invention includes a test bench. Above the test bench, there are a loading tray and a test transfer mechanism. On one side of the test bench, there is a frame. A conveyor belt is arranged on the frame. The middle section of the conveyor belt is recessed downward to form a recessed area. Both sides of the recessed area have slopes. The test transfer mechanism provided in the present invention can complete the transfer of the spring from the position of the loading tray to the conveyor belt, and the test transfer mechanism can also perform compression and tensile tests on the spring at normal temperature or required temperature conditions to judge the comprehensive performance of the spring, so as to judge whether the comprehensive performance of the damper using the spring meets the standard.

[0036] 2. For the comprehensive performance testing device for a damper of the present invention, the loading tray is detachably arranged on the test bench, which is convenient for taking and placing. After arranging multiple groups of springs side by side on the loading tray, place the loading tray on the upper surface of the test bench. Then start the first slider on the first slide rail. The first slider moves along the first slide rail, thereby controlling the second slide rail and the manipulator to reach one side of the corresponding loading tray. Control the second slider to move along the second slide rail, thereby controlling the manipulator to move from the loading tray to the conveyor belt position. When the manipulator moves above the loading tray, the manipulator clamps the corresponding spring. When the manipulator moves to the position of the test metal reference rod, by starting the second cylinder to push the positioning connecting plate to move away from the electric heater. Since the test metal reference rod is fixedly connected to the positioning connecting plate and the test metal reference rod is movably engaged at the end of the heat preservation pipeline, the test metal reference rod synchronously moves away from the electric heater, and the end of the test metal reference rod away from the positioning connecting plate is moved to the side of the manipulator close to the positioning connecting plate. At this time, the spring clamped by the manipulator can be aligned with the end of the test metal reference rod, and then the test metal reference rod is reset, and the spring can be automatically sleeved on the test metal reference rod.

[0037] 3. A comprehensive performance testing device for a damper of the present invention. When the manipulator moves through the cooperation structure between the first slide rail and the first slider, the manipulator can compress or stretch the spring to be detected, so as to realize the detection of the compression or stretching of the spring to be detected. A corresponding force sensor is arranged on the manipulator to measure the current compression or stretching force, which is a common existing technology and will not be elaborated here. When the first cylinder drives the third slider above the third slide rail to move, the third slider realizes the further detection of the compression or stretching of the spring to be detected by using the limiting effect of the sleeve plate on the end of the spring to be detected;

[0038] 4. A comprehensive performance testing device for a damper of the present invention. There are multiple groups of loading trays. When the springs on one group of loading trays are detected, they can be conveniently replaced without affecting the continuous detection operation of the device. The supply device continuously detects the springs, improving the detection efficiency;

[0039] 5. A comprehensive performance testing device for a damper of the present invention. After the spring on the test metal reference rod is detected, the manipulator is used to take out the spring on the test metal reference rod, and then the manipulator is driven to move towards the direction of the conveyor belt, and the spring is placed on the conveyor belt for further screening and detection;

[0040] 6. A comprehensive performance testing device for a damper of the present invention. There are recessed areas on the conveyor belt, which are convenient for screening out the springs that are missed by the machine or unqualified in other cases. Specifically, the surface of the conveyor belt has an anti-slip surface, and there is sufficient frictional resistance between the conveyor belt and the springs. The springs on the conveyor belt pass through the slopes on both sides of the recessed area during the transmission process. If the weight of the spring exceeds the set standard, the spring will slide too fast during the downhill process, and the spring will roll backward during the uphill process. Therefore, the recessed area can be used to quickly screen out the springs whose weight exceeds the set standard. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 is a schematic structural diagram of the comprehensive performance testing device for a damper of the present invention.

[0042] Figure 2 is a schematic structural diagram of a perspective of the test bench of the present invention.

[0043] Figure 3 is a schematic structural diagram of another perspective of the test bench of the present invention.

[0044] Figure 4 is a schematic structural diagram of the third slide rail of the present invention.

[0045] Figure 5 of the present invention Figure 2 is an enlarged schematic diagram of the structure at A in

[0046] Figure 6For the present invention Figure 3 Schematic enlarged view of the structure at position B in the present invention.

[0047] Figure 7 For the present invention Figure 3 Schematic enlarged view of the structure at position C in the present invention.

[0048] Figure 8 For the present invention Figure 4 Schematic enlarged view of the structure at position D in the present invention.

[0049] Figure 9 Schematic diagram of the screw structure of the present invention.

[0050] Figure 10 Schematic diagram of the stainless steel explosion-proof sheet structure of the present invention.

[0051] In the figure: test bench 1, holding tray 2, test transfer mechanism 3, frame 4, conveyor belt 5, recessed area 6, magnetic rod 7, spring 8, first slide rail 9, second slide rail 10, second slider 11, manipulator 12, test metal reference rod 13, first support plate 14, heat preservation pipeline 15, second support plate 16, electric heater 17, reinforcing rib plate 18, first slider 19, L-shaped connecting plate 20, guide plate 21, guide rod 22, third slider 23, third slide rail 24, first cylinder 25, second cylinder 26, positioning connecting plate 27, spring to be detected 28, movable hole 29, sleeve plate 30, clamping plate 31, protrusion 32, air vent 33, air cavity 34, screw 35, connecting round hole 36, screw rod 37, stainless steel explosion-proof sheet 38, magnetic suction block 39, cross-shaped gap 40, pressure relief channel 41. Detailed implementation manners

[0052] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0053] The present invention provides as Figures 1 - 10A comprehensive performance testing device for a damper, comprising a test bench 1. Above the test bench 1, there are a loading tray 2 and a test transfer mechanism 3. On one side of the test bench 1, there is a frame 4. On the frame 4, there is a conveyor belt 5. The middle section of the conveyor belt 5 is recessed downward to form a recessed area 6. Both sides of the recessed area 6 have slopes. The test transfer mechanism 3 is arranged between the loading tray 2 and the conveyor belt 5. The test transfer mechanism 3 includes a second slide rail 10, a first slide rail 9, a second slider 11, a first slider 19, a manipulator 12, a test metal reference rod 13, a first support plate 14, a third slider 23, a third slide rail 24, a first cylinder 25, a second cylinder 26, a sleeve plate 30 and a positioning connection plate 27. The second slide rail 10 is distributed along the conveying direction of the conveyor belt 5. The first slide rail 9 is perpendicular to the second slide rail 10. The first slide rail 9 is fixedly installed on the upper surface of the test bench 1. The first slider 19 is slidably arranged on the first slide rail 9. The upper end of the first slider 19 is fixedly connected to one side of the second slide rail 10 through an L-shaped connection plate 20. The L-shaped connection plate 20 is provided with a reinforcing rib plate 18. The second slider 11 is slidably arranged on the second slide rail 10. The manipulator 12 is connected to the lower end of the second slider 11. The third slide rail 24 and the second cylinder 26 are both fixedly installed on the upper surface of the test bench 1. A third slider 23 is slidably arranged on the third slide rail 24. One end of the third slide rail 24 is provided with a first cylinder 25 for driving the third slider 23 to move along the third slide rail 24. The sleeve plate 30 is fixedly welded on the upper surface of the third slider 23. The positioning connection plate 27 is fixedly connected to the telescopic end of the second cylinder 26. The positioning connection plate 27 is connected to the test metal reference rod 13. The sleeve plate 30 is provided with a movable hole 29 for the test metal reference rod 13 to pass through movably. The end of the test metal reference rod 13 away from the positioning connection plate 27 is close to the first support plate 14. The spring 28 to be detected is movably sleeved on the test metal reference rod 13, and the spring 28 to be detected is located between the sleeve plate 30 and the manipulator 12. On the loading tray 2, there is a spring 8 placed.

[0054] There are multiple groups of loading trays 2, and the multiple groups of loading trays 2 are arranged side by side. The springs 8 placed on the loading trays 2 are also arranged side by side.

[0055] The test transfer mechanism 3 provided in the present invention can complete the transfer of the spring 8 from the position of the loading tray 2 to the conveyor belt 5, and the test transfer mechanism 3 can also perform compression and tensile tests on the spring 8 under normal temperature or required temperature conditions to judge the comprehensive performance of the spring 8, so as to judge whether the comprehensive performance of the damper using the spring 8 meets the standard.

[0056] During operation, the loading tray 2 is detachably arranged on the test bench 1 for convenient loading and unloading. After arranging multiple groups of springs 8 side by side on the loading tray 2, the loading tray 2 is placed on the upper surface of the test bench 1. Then, the first slider 19 on the first slide rail 9 is started, and the first slider 19 moves along the first slide rail 9, thereby controlling the second slide rail 10 and the manipulator 12 to reach one side of the corresponding loading tray 2. The second slider 11 is controlled to move along the second slide rail 10, thereby controlling the manipulator 12 to move from the loading tray 2 to the position of the conveyor belt 5. When the manipulator 12 moves above the loading tray 2, the manipulator 12 clamps the corresponding spring 8. When the manipulator 12 moves to the position of the test metal reference rod 13, the second cylinder 26 is started to push the positioning connecting plate 27 to move away from the electric heater 17. Since the test metal reference rod 13 is fixedly connected to the positioning connecting plate 27 and the test metal reference rod 13 is movably engaged at the end of the heat preservation pipe 15, the test metal reference rod 13 synchronously moves away from the electric heater 17, and the end of the test metal reference rod 13 away from the positioning connecting plate 27 is moved to the side of the manipulator 12 close to the positioning connecting plate 27. At this time, the spring 8 clamped on the manipulator 12 can be aligned with the end of the test metal reference rod 13, and then the test metal reference rod 13 is reset, and the spring 8 can be automatically sleeved on the test metal reference rod 13.

[0057] During detection, when the manipulator 12 moves through the cooperation structure between the first slide rail 9 and the first slider 19, the manipulator 12 can compress or stretch the spring 28 to be detected, realizing the detection of compression or stretching of the spring 28 to be detected. By setting a corresponding force sensor on the manipulator 12, the current compression or stretching force can be measured, which is a common existing technology and will not be elaborated here. When the first cylinder 25 drives the third slider 23 above the third slide rail 24 to move, the third slider 23 realizes the further detection of compression or stretching of the spring 28 to be detected by using the limiting effect of the sleeve plate 30 on the end of the spring 28 to be detected.

[0058] In the device, multiple groups of loading trays 2 are provided. When the springs 8 on one group of loading trays 2 are detected, it is convenient to replace them without affecting the continuous detection operation of the device. The supply device continuously detects the springs 8, improving the detection efficiency.

[0059] After the spring 8 on the test metal reference rod 13 is detected, the spring 8 on the test metal reference rod 13 is taken out by using the manipulator 12, and then the manipulator 12 is driven to move towards the conveyor belt 5, and the spring 8 is placed on the conveyor belt 5 for further screening and detection.

[0060] A recessed area 6 is provided on the conveyor belt 5, which is convenient for screening out springs 8 that are missed by the machine or unqualified under other circumstances. Specifically, the surface of the conveyor belt 5 has an anti-slip surface, and there is sufficient frictional resistance between the conveyor belt 5 and the springs 8. The springs 8 on the conveyor belt 5 pass through the slopes on both sides of the recessed area 6 during the transmission process. If the weight of the spring 8 exceeds the set standard, the spring 8 will slide too fast during the downhill process, and the spring 8 will roll backward during the uphill process. Therefore, the recessed area 6 can be used to quickly screen out springs 8 whose weight exceeds the set standard.

[0061] The above-mentioned first slide rail 9 and second slide rail 10 are both common existing driving parts and will not be elaborated here.

[0062] A pair of clamping plates 31 are provided at the lower end of the manipulator 12. On the surfaces of the pair of clamping plates 31 that face each other, protrusions 32 for clamping and restricting the springs 28 to be detected are fixedly provided.

[0063] Furthermore, the pair of clamping plates 31 can clamp and fix the spring 8, and the clamping plates 31 can be clamped and restricted at the gap of the spring 28 to be detected, so as to position the end of the spring 28 to be detected.

[0064] An air cavity 34 is provided inside the test metal reference rod 13. On one side of the upper surface of the test bench 1, an electric heater 17 is fixedly installed. The end of the electric heater 17 is connected to a heat preservation pipeline 15. One end of the heat preservation pipeline 15 is fixedly supported on the second support plate 16, and the other end of the heat preservation pipeline 15 is fixedly supported on the first support plate 14. One end of the test metal reference rod 13 close to the first support plate 14 is clamped at the end of the heat preservation pipeline 15, and the air cavity 34 inside the test metal reference rod 13 is communicated with the heat preservation pipeline 15.

[0065] The electric heater 17 can heat the air in the heat preservation pipeline 15, and the heat preservation pipeline 15 is communicated with the air cavity 34, so that the air in the air cavity 34 is also heated at the same time. When the air is heated, the heat is transferred to the spring 28 to be detected through the wall of the test metal reference rod 13, so as to achieve the purpose of heating the spring 28 to be detected and realizing the detection when the spring 28 to be detected is heated.

[0066] An air vent 33 is provided on the surface of the positioning connecting plate 27 away from the test metal reference rod 13, and a connecting round hole 36 is provided on the surface of the positioning connecting plate 27 close to the test metal reference rod 13. One end of the test metal reference rod 13 away from the first support plate 14 is clamped in the connecting round hole 36. Screws 35 are provided on the positioning connecting plate 27. The end of the screw 35 is integrally provided with a screw rod 37. The end of the screw rod 37 simultaneously extends into the air vent 33 and one end of the air cavity 34 close to the positioning connecting plate 27, and both the air cavity 34 and the air vent 33 are threadedly connected with the screw rod 37.

[0067] To fix the metal reference rod 13 for testing to the positioning connection plate 27, a screw 35 is provided. The metal reference rod 13 for testing is fixed on the connecting round hole 36 on the surface of the positioning connection plate 27 by the screw 35, which is convenient for connection and use.

[0068] A pressure relief channel 41 is provided on the screw 35, and the pressure relief channel 41 communicates between the air cavity 34 and the outside of the screw 35.

[0069] To avoid the situation that the metal reference rod 13 for testing bursts due to the too high air temperature in the air cavity 34, a pressure relief channel 41 is provided on the screw 35, which ensures that the heat can be discharged and avoids the too high temperature inside the air cavity 34.

[0070] A stainless steel explosion-proof sheet 38 is provided at one end of the pressure relief channel 41 communicating with the air cavity 34. The stainless steel explosion-proof sheet 38 is fixedly welded to the inner wall of the pressure relief channel 41, and a cross-shaped slit 40 is provided on the stainless steel explosion-proof sheet 38.

[0071] To avoid a large amount of hot air in the air cavity 34 being discharged from the pressure relief channel 41 and unable to heat the spring 28 to be detected well, a stainless steel explosion-proof sheet 38 is provided at the end of the pressure relief channel 41. When the temperature of the hot air inside the air cavity 34 rises to a certain level, its pressure value is too high, which will cause the stainless steel explosion-proof sheet 38 to burst from the position of the cross-shaped slit 40, achieving the purpose of pressure relief and heat discharge, and being able to control the temperature of the hot air in the air cavity 34 to always be within the set threshold. The stainless steel explosion-proof sheet 38 can be elastically deformed. When the stainless steel explosion-proof sheet 38 bursts and discharges the hot air in the air cavity 34, the cross-shaped slit 40 on the stainless steel explosion-proof sheet 38 can be reset and sealed again.

[0072] A magnetic suction block 39 close to the positioning connection plate 27 is fixedly welded to the inner wall of the air cavity 34, and the magnetic suction block 39 attracts the stainless steel explosion-proof sheet 38.

[0073] Furthermore, the magnetic suction block 39 attracts the stainless steel explosion-proof sheet 38, thereby increasing the resistance when the stainless steel explosion-proof sheet 38 bursts, and thus increasing the maximum value of the gas temperature in the air cavity 34. By rotating the screw 35 to control the distance between the stainless steel explosion-proof sheet 38 and the magnetic suction block 39, the suction force between the magnetic suction block 39 and the stainless steel explosion-proof sheet 38 can also be adjusted, achieving the purpose of controlling the resistance when the stainless steel explosion-proof sheet 38 bursts, and thus realizing the control of the internal gas in the air cavity 34 to be heated to a suitable maximum temperature threshold.

[0074] A guide plate 21 is fixedly welded to the upper surface of the test bench 1. The guide plate 21 is located on the side of the third slide rail 24 away from the second air cylinder 26. One end of the positioning connection plate 27 away from the second air cylinder 26 is fixedly connected with a guide rod 22, and the guide rod 22 movably passes through the guide plate 21.

[0075] When the second cylinder 26 drives the positioning connecting plate 27 to move, one end of the positioning connecting plate 27 away from the second cylinder 26 expands and contracts in the guide plate 21 through the guide rod 22. The guide plate 21 and the guide rod 22 guide and stabilize the movement of the test metal reference rod 13, so that it is easy for the test metal reference rod 13 to extend from the end of the spring 8.

[0076] The magnetic rods 7 are fixedly installed on the frame 4. The magnetic rods 7 are located above the conveyor belt 5, and multiple groups of magnetic rods 7 are provided.

[0077] It should be noted that there may still be a part of the springs 8 that are transported to the conveyor belt 5 after testing and have unqualified quality, such as being lighter in weight. Therefore, magnetic rods 7 are provided on the frame 4. There is a certain height between the magnetic rods 7 and the conveyor belt 5. When the weight of the spring 8 is lower than the specified standard, the spring 8 can be adsorbed onto the magnetic rods 7, so as to achieve automatic screening, which is convenient for the staff to collect the springs 8 with unqualified quality centrally for reprocessing.

[0078] In actual use, the height of the magnetic rods 7 is adjustable, which is convenient to adjust to a suitable height according to the different specifications of the tested springs 8. The height of the magnetic rods 7 should be just enough to adsorb the springs 8 with weights lower than the specified standard.

Claims

1. A comprehensive performance testing device for a damper, comprising a test bench (1), characterized in that: Above the test bench (1), a loading tray (2) and a test transfer mechanism (3) are provided. On one side of the test bench (1), a frame (4) is provided. On the frame (4), a conveyor belt (5) is provided. A depression area (6) is formed by the middle section of the conveyor belt (5) sinking downward. Both sides of the depression area (6) have slopes. The test transfer mechanism (3) is arranged between the loading tray (2) and the conveyor belt (5). The test transfer mechanism (3) includes a second slide rail (10), a first slide rail (9), a second slider (11), a first slider (19), a manipulator (12), a test metal reference rod (13), a first support plate (14), a third slider (23), a third slide rail (24), a first cylinder (25), a second cylinder (26), a sleeve plate (30) and a positioning connecting plate (27). The second slide rail (10) is distributed along the conveying direction of the conveyor belt (5). The first slide rail (9) is perpendicular to the second slide rail (10). The first slide rail (9) is fixedly installed on the upper surface of the test bench (1). The first slider (19) is slidably arranged on the first slide rail (9). The upper end of the first slider (19) is fixedly connected to one side of the second slide rail (10) through an L-shaped connecting plate (20). Reinforcing rib plates (18) are arranged on the L-shaped connecting plate (20). The second slider (11) is slidably arranged on the second slide rail (10). The manipulator (12) is connected to the lower end of the second slider (11). The third slide rail (24) and the second cylinder (26) are both fixedly installed on the upper surface of the test bench (1). A third slider (23) is slidably arranged on the third slide rail (24). One end of the third slide rail (24) is provided with a first cylinder (25) for driving the third slider (23) to move along the third slide rail (24). The sleeve plate (30) is fixedly welded on the upper surface of the third slider (23). The positioning connecting plate (27) is fixedly connected to the telescopic end of the second cylinder (26). The positioning connecting plate (27) is connected to the test metal reference rod (13). An activity hole (29) for the test metal reference rod (13) to pass through is arranged on the sleeve plate (30). The end of the test metal reference rod (13) away from the positioning connecting plate (27) is close to the first support plate (14). The spring to be detected (28) is movably sleeved on the test metal reference rod (13), and the spring to be detected (28) is located between the sleeve plate (30) and the manipulator (12). Springs (8) are placed on the loading tray (2).

2. The comprehensive performance testing device for a damper according to claim 1, characterized in that: Multiple groups of the loading trays (2) are provided. The multiple groups of loading trays (2) are arranged side by side. The springs (8) placed on the loading trays (2) are also arranged side by side.

3. The comprehensive performance testing device for a damper according to claim 1, characterized in that: A pair of clamping plates (31) are provided at the lower end of the manipulator (12), and protrusions (32) for clamping and restricting the spring (28) to be detected are fixedly provided on the mutually approaching surfaces of the pair of clamping plates (31).

4. A comprehensive performance testing device for a damper according to claim 1, characterized in that: An air cavity (34) is provided inside the test metal reference rod (13). An electric heater (17) is fixedly installed on one side of the upper surface of the test bench (1). The end of the electric heater (17) is connected to a heat preservation pipeline (15). One end of the heat preservation pipeline (15) is fixedly supported on the second support plate (16), and the other end of the heat preservation pipeline (15) is fixedly supported on the first support plate (14). One end of the test metal reference rod (13) close to the first support plate (14) is clamped at the end of the heat preservation pipeline (15), and the air cavity (34) inside the test metal reference rod (13) communicates with the heat preservation pipeline (15).

5. A comprehensive performance testing device for a damper according to claim 4, characterized in that: An air vent hole (33) is provided on the surface of the positioning connecting plate (27) away from the test metal reference rod (13), and a connecting round hole (36) is provided on the surface of the positioning connecting plate (27) close to the test metal reference rod (13). One end of the test metal reference rod (13) away from the first support plate (14) is clamped in the connecting round hole (36). Screws (35) are provided on the positioning connecting plate (27). The end of the screw (35) is integrally provided with a screw rod (37). The end of the screw rod (37) simultaneously extends into the air vent hole (33) and one end of the air cavity (34) close to the positioning connecting plate (27), and the air cavity (34) and the air vent hole (33) are both threadedly engaged with the screw rod (37).

6. A comprehensive performance testing device for a damper according to claim 5, characterized in that: A pressure relief channel (41) is provided on the screw (35), and the pressure relief channel (41) communicates between the air cavity (34) and the outside of the screw (35).

7. A comprehensive performance testing device for a damper according to claim 6, characterized in that: A stainless steel explosion-proof sheet (38) is provided at one end of the pressure relief channel (41) communicating with the air cavity (34). The stainless steel explosion-proof sheet (38) is fixedly welded to the inner wall of the pressure relief channel (41), and a cross-shaped slit (40) is provided on the stainless steel explosion-proof sheet (38).

8. A comprehensive performance testing device for a damper according to claim 7, characterized in that: A magnetic suction block (39) close to the positioning connecting plate (27) is fixedly welded to the inner wall of the air cavity (34), and the magnetic suction block (39) attracts the stainless steel explosion-proof sheet (38).

9. A comprehensive performance testing device for a damper according to claim 1, characterized in that: The upper surface of the test bench (1) is fixedly welded with a guide plate (21). The guide plate (21) is located on the side of the third slide rail (24) away from the second cylinder (26). One end of the positioning connecting plate (27) away from the second cylinder (26) is fixedly connected with a guide rod (22), and the guide rod (22) movably passes through the guide plate (21).

10. A comprehensive performance testing device for a damper according to claim 1, characterized in that: A magnetic rod (7) is fixedly installed on the frame (4). The magnetic rod (7) is located above the conveyor belt (5), and multiple groups of magnetic rods (7) are provided.

Images