An adjustable rubber ring mechanical properties testing device

Abstract

The present invention is applicable to the technical field of rubber ring performance detection, and provides an adjustable rubber ring mechanical property detection device, comprising a box body and a detection unit installed in the box body, the detection unit comprising a stretching structure, a friction structure, a torsion structure, a driving structure and an adjusting structure, the driving structure comprising a first stepper motor, a rotating disk, a mounting plate, a first pin shaft and a second pin shaft, the stretching structure comprising a connecting rod and a tension sensor, the friction structure comprising a frustum and an arc plate, the torsion structure comprising an outer spiral rod, an inner spiral sleeve and an electric push rod, the present invention arranges a box body and a detection unit, drives the stretching structure, the friction structure and the torsion structure to act synchronously through a driving mechanism, adjusts the detection strength of the stretching structure, the friction structure and the torsion structure on the rubber ring through the adjusting structure, and performs multi-mode detection at the same time, has a simple structure, is ingeniously designed, meets more detection requirements, and improves detection efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of rubber ring performance detection, and in particular relates to an adjustable rubber ring mechanical performance detection device. Background Art

[0002] Rubber rings generally refer to rubber sealing rings, which are suitable for installation on various mechanical equipment to perform sealing functions in static or moving states at specified temperatures, pressures, and in different liquid and gas media.

[0003] After the rubber ring is produced, it must be subjected to various performance tests, such as mechanical performance tests;

[0004] After searching, Chinese patent CN212059684U discloses a bottom plate, a fixed plate, a clamping cylinder, a clamping claw and a stretching mechanism, wherein the fixed plate is fixed to one end of the bottom plate, a clamping groove is provided on the fixed plate and a through groove is provided on one side of the clamping groove, the clamping cylinder is provided at one end of the fixed plate and a piston rod passes through the through groove, a clamping plate is connected to the top of the clamping cylinder, the clamping claw is connected to the support plate on the bottom plate through a slide seat, a guide groove is provided between the fixed plate and the clamping claw, and the stretching mechanism is provided at the other end of the bottom plate;

[0005] The inventors believe that existing mechanical property testing devices have a single function, and each device can generally only perform one testing method and cannot perform multi-mode testing simultaneously, thereby increasing the production cost of the device, low device utilization, and reducing testing efficiency. Summary of the invention

[0006] The present invention provides an adjustable rubber ring mechanical property detection device, aiming to solve the above-mentioned problem.

[0007] The present invention is implemented as follows: an adjustable rubber ring mechanical property detection device comprises:

[0008] Box;

[0009] A detection unit installed in the box, the detection unit includes:

[0010] Tensile structure, used for tensile testing of rubber rings;

[0011] Friction structure, used for friction detection of rubber ring;

[0012] Torsion structure, used for torsion detection of rubber ring;

[0013] A driving structure, used for driving the tensile structure, the friction structure and the torsion structure to move synchronously;

[0014] The adjusting structure is used for adjusting the detection strength of the tensile structure, the friction structure and the torsion structure on the rubber ring.

[0015] Preferably, the driving structure comprises:

[0016] A first stepper motor is fixed to the bottom of the inner cavity of the box, and a rotating disk is fixed on the output shaft of the first stepper motor;

[0017] A mounting plate is arranged above the rotating disk, a first pin is rotatably mounted on the mounting plate at one side of the rotating disk, and the first pin is fixed to the bottom of the inner cavity of the box;

[0018] A second vertical pin shaft is eccentrically mounted on the rotating disk, and a movable groove for the second pin shaft to pass through and move is provided on the mounting plate along its length direction.

[0019] Preferably, the tensile structure comprises:

[0020] Connecting rod, two connecting rods are hinged on the first pin shaft and the second pin shaft above the mounting plate, and the connecting rods on the first pin shaft and the second pin shaft are hinged in pairs through the third pin shaft to form a diamond structure;

[0021] The tension sensors are respectively fixed on the two third pin shafts, and a rubber ring is connected between the pull heads of the two tension sensors.

[0022] Preferably, the friction structure comprises:

[0023] A truncated table rotatably mounted on one end of the mounting plate away from the rotating disk, wherein a plurality of annular grooves for mounting rubber rings are provided along the axial direction of the truncated table;

[0024] An arc plate is arranged on the side of the table away from the first pin shaft, the center of the arc plate is located on the axis of the first pin shaft, the inner wall of the arc plate is parallel to the side of the table, a pressure sensor is connected between the arc plate and the side wall of the box body, and is used to detect the squeezing force of the arc plate on the rubber ring, and the distance between the inner wall of the arc plate and the bottom of the annular groove is less than the thickness of the rubber ring.

[0025] Preferably, the torsion structure includes an outer spiral rod, an inner spiral sleeve and an electric push rod, a mounting frame is fixed to the end of the mounting plate away from the truncated table, an outer spiral rod is hinged on the second pin shaft, the outer spiral rod extends into the mounting frame along the length direction of the mounting plate, an inner spiral sleeve spirally matched with the outer spiral rod is sleeved on the outer spiral rod, the inner spiral sleeve is rotatably mounted on the mounting frame, an electric push rod is fixedly mounted on the end of the mounting frame away from the mounting plate, the telescopic end of the electric push rod is coaxially arranged with the inner spiral sleeve, tension sensors are respectively installed on the telescopic end of the electric push rod and the end of the inner spiral sleeve away from the mounting plate, and a rubber ring is connected between the pulling heads of the two tension sensors.

[0026] Preferably, the regulating structure comprises:

[0027] Rotating a first adjusting screw mounted on the rotating disk, wherein the first adjusting screw is arranged along the radial direction of the rotating disk;

[0028] A first movable block is threadedly connected to the first adjusting screw rod, the first movable block is slidably connected to the rotating disk, and the second pin shaft is fixed to the first movable block.

[0029] Preferably, an arc-shaped cavity is provided in the arc-shaped plate, an airbag is arranged in the arc-shaped cavity, a plurality of protruding plates are adhered at intervals on the side wall of the airbag close to the truncated cone, the plurality of protruding plates pass through a plurality of through grooves provided on the inner wall of the arc-shaped plate and extend outside the arc-shaped plate, an inflation and deflation air pump is installed on the side wall of the box body, and the inflation and deflation air pump is connected to the airbag through a soft air tube.

[0030] Preferably, an environmental simulation unit is installed on the box, and the environmental simulation unit includes:

[0031] The electric heating element arranged in the box body is used to heat the box body;

[0032] An atomizing nozzle arranged in the box body is used to spray atomized liquid into the box body;

[0033] The driving mechanism installed on the box body is used to drive the electric heating element and the atomizing nozzle to move.

[0034] Preferably, the driving mechanism comprises:

[0035] A vertical pipe that runs through the middle of the top of the box and extends into the box, and the vertical pipe is rotatably connected to the top of the box;

[0036] A mounting tube integrally connected to the bottom end of the vertical tube, a plurality of the electric heating elements and the atomizing nozzles are installed at intervals on the lower surface of the mounting tube, and the liquid inlet of the atomizing nozzle is connected to the inner cavity of the mounting tube;

[0037] A power component used to drive the vertical pipe to rotate.

[0038] Preferably, a plurality of liquid boxes are provided on the top of the box body, each of which contains different liquids, and a pump body is provided in the liquid box, and the pump outlet of the pump body is connected to the vertical pipe through a liquid supply pipeline;

[0039] The liquid supply pipeline includes a main pipeline and a branch pipeline, the main pipeline vertically penetrates into the vertical pipe and is rotatably connected thereto, the main pipeline is connected to a plurality of branch pipelines, each branch pipeline extends into a liquid tank and is connected to the pump outlet of the pump body, and each branch pipeline is respectively installed with a one-way valve;

[0040] Sensors are installed in the box, and the sensors include a temperature sensor and a humidity sensor. The temperature sensor and the humidity sensor are electrically connected to a temperature and humidity controller outside the box, and the temperature and humidity controller is electrically connected to the electric heating element and the pump body.

[0041] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0042] The adjustable rubber ring mechanical property detection device provided by the present invention is provided with a box body and a detection unit, wherein the detection unit includes a stretching structure, a friction structure, a torsion structure, a driving structure and an adjustment structure, which are used to adjust the detection strength of the stretching structure, the friction structure and the torsion structure on the rubber ring. The stretching structure, the friction structure and the torsion structure are driven by the driving mechanism to move synchronously, and multi-mode detection is performed simultaneously. The structure is simple and the design is ingenious, which can meet more detection needs and improve the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 It is a structural schematic diagram of an adjustable rubber ring mechanical property detection device provided by the present invention;

[0044] Figure 2 yes Figure 1 A in the enlarged view;

[0045] Figure 3 It is a structural schematic diagram of a detection unit in an adjustable rubber ring mechanical property detection device provided by the present invention;

[0046] Figure 4 It is a schematic diagram of an adjustment structure in an adjustable rubber ring mechanical property detection device provided by the present invention.

[0047] Notes on the figure numbers: 1. Box body; 2. First movable block; 3. First adjusting screw; 4. First stepper motor; 5. Rotating disk; 6. Mounting plate; 7. First pin shaft; 8. Second movable block; 9. Second adjusting screw; 10. Mounting shaft; 11. Pressure sensor; 12. Charging and discharging air pump; 13. Arc plate; 14. Air bag; 15. Projecting plate; 16. Cone; 17. Atomizing nozzle; 18. Mounting pipe; 19. Liquid tank; 20. Pump body; 21. Liquid supply pipeline; 22. Power component; 23. Vertical pipe; 24. Electric heating element; 25. Environmental sensor; 26. Second pin shaft; 27. Connecting rod; 28. Tension sensor; 29. ​​Mounting frame; 30. Electric push rod; 31. Inner spiral sleeve; 32. Outer spiral rod; 33. Mounting sleeve. DETAILED DESCRIPTION

[0048] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0049] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0050] The embodiment of the present invention provides an adjustable rubber ring mechanical property detection device, such as Figure 1-Figure 4 As shown, including:

[0051] A box body 1, wherein a box door is installed on the box body 1, which can be installed by hinges and buckles, and the box door can be made of a transparent material to facilitate observation of the inside of the box body 1;

[0052] A detection unit installed in the box 1, the detection unit includes:

[0053] Tensile structure, used for tensile testing of rubber rings;

[0054] Friction structure, used for friction detection of rubber ring;

[0055] Torsion structure, used for torsion detection of rubber ring;

[0056] A driving structure, used for driving the tensile structure, the friction structure and the torsion structure to move synchronously;

[0057] The adjusting structure is used for adjusting the detection strength of the tensile structure, the friction structure and the torsion structure on the rubber ring.

[0058] After the rubber rings are installed on the tensile structure, friction structure and torsion structure respectively, the tensile structure, friction structure and torsion structure are driven to move synchronously through the driving mechanism, and multi-mode detection is performed at the same time, which improves the work efficiency. The detection intensity of the tensile structure, friction structure and torsion structure on the rubber ring can be adjusted by adjusting the structure.

[0059] Wherein, the driving structure comprises:

[0060] The first stepper motor 4 is fixed to the bottom of the inner cavity of the box body 1 and can be fixed by bolts. A rotating disk 5 is fixed on the output shaft of the first stepper motor 4.

[0061] A mounting plate 6 is arranged above the rotating disk 5, and a first pin shaft 7 is rotatably mounted on the mounting plate 6 at one side of the rotating disk 5. The first pin shaft 7 is fixed to the bottom of the inner cavity of the box body 1 and can be fixed by screws;

[0062] A second pin shaft 26 is eccentrically mounted vertically on the rotating disk 5, and a movable groove is provided on the mounting plate 6 along its length direction for the second pin shaft 26 to pass through and move;

[0063] During operation, the first stepper motor 4 drives the rotating disk 5 to rotate, the rotating disk 5 drives the first adjusting screw 3 and the first movable block 2 to rotate, the first movable block 2 drives the second pin shaft 26 to revolve, the second pin shaft 26 reciprocates in the movable groove and drives the mounting plate 6 to swing back and forth.

[0064] Furthermore, the tensile structure comprises:

[0065] Connecting rods 27, two connecting rods 27 are hinged on the first pin shaft 7 and the second pin shaft 26 above the mounting plate 6, and the connecting rods 27 on the first pin shaft 7 and the second pin shaft 26 are hinged in pairs through a third pin shaft to form a diamond structure;

[0066] The tension sensors 28 are fixed on the two third pins respectively, and a rubber ring is connected between the pull heads of the two tension sensors 28. A hook for hooking the rubber ring can be provided on the pull head of the tension sensor 28;

[0067] During the test, the second pin shaft 26 reciprocates in the movable groove, and the second pin shaft 26 drives the connecting rod 27 to move, so that the two third pin shafts and the tension sensors 28 thereon repeatedly move away from and close to each other, thereby repeatedly stretching the rubber ring for testing;

[0068] Furthermore, the friction structure includes:

[0069] A truncated table 16 is rotatably mounted on one end of the mounting plate 6 away from the rotating disk 5. The truncated table 16 is provided with a plurality of annular grooves for mounting the rubber ring in the axial direction. Preferably, the depth of the annular grooves is less than one third of the thickness of the rubber ring. The plurality of annular grooves have different diameters and can be used to mount rubber rings of different diameters or to expand the rubber rings to different diameters.

[0070] An arc plate 13 is arranged on the side of the truncated cone 16 away from the first pin shaft 7, the center of the arc plate 13 is located on the axis of the first pin shaft 7, the inner side wall of the arc plate 13 is parallel to the side surface of the truncated cone 16, a pressure sensor 11 is connected between the arc plate 13 and the side wall of the box body 1, and is used to detect the squeezing force of the arc plate 13 on the rubber ring, and the distance between the inner side wall of the arc plate 13 and the bottom of the annular groove is less than the thickness of the rubber ring;

[0071] During the detection, the second pin shaft 26 drives the mounting plate 6 to swing back and forth, and the mounting plate 6 drives the round table 16 to reciprocate relative to the arc plate 13 when swinging back and forth. The arc plate 13 repeatedly rubs and squeezes the rubber ring on the round table 16 for detection.

[0072] In this embodiment, the torsion structure includes an outer spiral rod 32, an inner spiral sleeve 31 and an electric push rod 30. The mounting frame 29 is fixed to the end of the mounting plate 6 away from the round table 16. An outer spiral rod 32 is hinged on the second pin shaft 26. The outer spiral rod 32 extends into the mounting frame 29 along the length direction of the mounting plate 6. The outer spiral rod 32 is sleeved with an inner spiral sleeve 31 that is spirally matched with the outer spiral rod 32. The inner spiral sleeve 31 is rotatably mounted on the mounting frame 29 and can be rotatably connected to the mounting sleeve 33 on the inner spiral sleeve 31. The mounting sleeve 33 is fixedly connected to the mounting frame 29 through a support rod. An electric push rod 30 is fixedly installed at one end of the mounting frame 29 away from the mounting plate 6, which can be fixed by screws. The telescopic end of the electric push rod 30 is coaxially arranged with the inner spiral sleeve 31. The telescopic end of the electric push rod 30 and the end of the inner spiral sleeve 31 away from the mounting plate 6 are respectively installed with a tension sensor 28. A rubber ring is connected between the pull heads of the two tension sensors 28, and a hook for hooking the rubber ring can be provided on the pull head of the tension sensor 28;

[0073] It should be explained that when the second pin shaft 26 revolves, it reciprocates in the movable groove, driving the outer screw rod 32 to reciprocate relative to the inner screw sleeve 31, the outer screw rod 32 drives the inner screw sleeve 31 to rotate, and the inner screw sleeve 31 drives one end of the rubber ring to rotate continuously, thereby performing torsion detection on the rubber ring.

[0074] In a specific implementation, the adjustment structure includes:

[0075] Rotate the first adjusting screw 3 mounted on the rotating disk 5, wherein the first adjusting screw 3 is arranged radially along the rotating disk 5;

[0076] A first movable block 2 is threadedly connected to the first adjusting screw 3, the first movable block 2 is slidably connected to the rotating disk 5, and the second pin 26 is fixed to the first movable block 2 and can be fixed by welding;

[0077] It can be understood that the first stepper motor 4 drives the rotating disk 5 to rotate, the rotating disk 5 drives the first adjusting screw 3 and the first movable block 2 to rotate, the first movable block 2 drives the second pin shaft 26 to reciprocate in the movable groove and drives the mounting plate 6 to swing back and forth, the second pin shaft 26 drives the connecting rod 27 to move, so that the two third pin shafts and the tension sensors 28 thereon repeatedly move away from and approach each other, thereby repeatedly stretching and testing the rubber ring, and the mounting plate 6 drives the truncated table 16 to reciprocate relative to the arc plate 13 when it swings back and forth, and the arc plate 13 repeatedly rubs and squeezes the rubber ring on the truncated table 16 when it revolves, and drives the outer spiral rod 32 to reciprocate relative to the inner spiral sleeve 31 when the second pin shaft 26 reciprocates in the movable groove, drives the outer spiral rod 32 to reciprocate relative to the inner spiral sleeve 31, the outer spiral rod 32 drives the inner spiral sleeve 31 to rotate, and the inner spiral sleeve 31 drives one end of the rubber ring to rotate continuously, and performs torsion detection on the rubber ring, and can simultaneously perform multi-mode detection on the rubber ring, with a simple structure and ingenious design, thereby improving detection efficiency;

[0078] By rotating the first adjusting screw 3, the first adjusting screw 3 drives the first movable block 2 and the second pin 26 thereon to move radially along the rotating disk 5, and adjusts the revolution diameter of the second pin 26, thereby adjusting the maximum spacing between the two tension sensors 28 during movement, and then adjusting the stretching length of the rubber ring. At the same time, the reciprocating swing arc of the mounting plate 6 changes, so that the path length of repeated friction and extrusion between the rubber ring on the truncated table 16 and the arc plate 13 changes, so as to meet more detection requirements. When the position of the second pin 26 is adjusted, the reciprocating distance of the outer spiral rod 32 relative to the inner spiral sleeve 31 changes, and the number of rotations of the inner spiral sleeve 31 changes, so as to adjust the number of twisting circles of the rubber ring and realize the adjustment of the detection intensity. Of course, the existing counting technology can be used to obtain the number of rotations of the first stepper motor 4, the truncated table 16, the inner spiral sleeve 31, etc., to record the number of stretching, friction and extrusion of the rubber ring, which is convenient for statistics.

[0079] Specifically, the mounting plate 6 is provided with a distance adjustment mechanism for adjusting the distance between the truncated table 16 and the arc-shaped plate 13, and the distance adjustment mechanism includes:

[0080] A second adjusting screw 9 rotatably mounted on the mounting plate 6 along the length direction of the mounting plate 6 can be rotatably mounted via a bearing;

[0081] A second movable block 8 threadedly connected to the second adjusting screw 9, wherein the second movable block 8 is slidably connected to the mounting plate 6 by a sliding connection method in which a slider and a slide groove cooperate;

[0082] A mounting shaft 10 fixed on the second movable block 8, wherein the mounting shaft 10 is coaxially arranged with the round table 16 and is rotatably connected thereto;

[0083] By rotating the second adjusting screw 9, the second adjusting screw 9 drives the second movable block 8 to move, the second movable block 8 drives the installation shaft 10 to move, and the installation shaft 10 drives the round table 16 to move, so as to adjust the distance with the arc plate 13, thereby adjusting the extrusion force and friction force on the rubber ring;

[0084] In a specific implementation, an arc-shaped cavity is provided in the arc-shaped plate 13, and an airbag 14 is arranged in the arc-shaped cavity. A plurality of protruding plates 15 are adhered at intervals on the side wall of the airbag 14 close to the truncated cone 16. The plurality of protruding plates 15 pass through a plurality of through grooves provided on the inner wall of the arc-shaped plate 13 and extend to the outside of the arc-shaped plate 13. An inflation and deflation air pump 12 is installed on the side wall of the box body 1. The inflation and deflation air pump 12 is connected to the airbag 14 through a soft air tube, and can inflate and deflate the airbag 14, and adjust the volume of the airbag 14, thereby adjusting the length of the protruding plate 15 extending out of the arc-shaped plate 13, thereby achieving the effect of adjusting the friction coefficient.

[0085] Preferably, the box body 1 is equipped with an environmental simulation unit for simulating the working environment of the rubber ring, such as temperature and humidity. The environmental simulation unit includes:

[0086] The electric heating element 24 disposed in the box body 1 is used to heat the box body 1 to simulate the workshop temperature;

[0087] The atomizing nozzle 17 disposed in the box body 1 is used to spray atomized liquid into the box body 1. The atomized liquid can be water, cutting fluid, etc., to simulate workshop humidity, etc.;

[0088] The driving mechanism installed on the box body 1 is used to drive the electric heating element 24 and the atomizing nozzle 17 to move so that the temperature and humidity in the box body 1 are uniform;

[0089] Wherein, the driving mechanism comprises:

[0090] A vertical pipe 23 that runs through the middle of the top of the box body 1 and extends into the box body 1, and the vertical pipe 23 is rotatably connected to the top of the box body 1, and can be rotatably connected via a bearing;

[0091] The mounting tube 18 is integrally connected to the bottom end of the vertical tube 23, and the plurality of electric heating elements 24 and the atomizing nozzle 17 are installed at intervals on the lower surface of the mounting tube 18 and can be installed by screws. The liquid inlet of the atomizing nozzle 17 is connected to the inner cavity of the mounting tube 18;

[0092] A power component 22 for driving the vertical pipe 23 to rotate;

[0093] The vertical tube 23 is driven to rotate by the power component 22, the vertical tube 23 drives the installation tube 18 to rotate, and the installation tube 18 drives the electric heating element 24 and the atomizing nozzle 17 to rotate, so that both can work in a large range, and the electric heating element 24 can be powered by a brush;

[0094] Specifically, the power component 22 includes a second stepper motor, a driving gear and a driven gear. The second stepper motor is fixed to the top of the box body 1 and can be fixed by screws. The output shaft of the second stepper motor is fixed with a driving gear. The vertical tube 23 is fixed with a driven gear meshing with the driving gear and can be fixed by interference fit.

[0095] The second stepping motor drives the driving gear to rotate, and the driving gear drives the vertical pipe 23 to rotate through the driven gear.

[0096] Furthermore, a plurality of liquid tanks 19 are provided on the top of the box body 1, each of which can contain different liquids, and a pump body 20 is provided in the liquid tank 19, and the pump outlet of the pump body 20 is communicated with the vertical pipe 23 through a liquid supply pipeline 21, and the liquid supply pipeline 21 includes a main pipeline and a branch pipeline, and the main pipeline vertically penetrates into the vertical pipe 23 and is rotatably connected thereto, and a plurality of branch pipelines are connected to the main pipeline through a pipe joint, and each branch pipeline extends into a liquid tank 19 and is connected to the pump outlet of the pump body 20, and each branch pipeline is respectively installed with a one-way valve;

[0097] By starting the pump bodies 20 in the different liquid tanks 19, the liquid enters the branch pipeline, then enters the vertical pipe 23 from the main pipeline, enters the mounting rod from the vertical pipe 23, and then sprays out from the atomizing nozzle 17, spraying into the box body 1 and onto the rubber ring, simulating the working environment;

[0098] Furthermore, an environmental sensor 25 is installed in the box body 1, and the environmental sensor 25 includes a temperature sensor and a humidity sensor. The temperature sensor and the humidity sensor are electrically connected to the temperature and humidity controller outside the box body 1, and the temperature and humidity controller is electrically connected to the electric heating element 24 and the pump body 20. In this way, the temperature and humidity environment in the box body 1 can be controlled and adjusted to simulate the mechanical properties of the rubber ring under different environments. The temperature and humidity controller is a prior art and will not be described in detail.

[0099] In summary, the present invention provides an adjustable rubber ring mechanical property testing device, and its working principle is:

[0100] A rubber ring is connected between the pull heads of the tension sensor 28 on the two third pin shafts, a rubber ring is connected between the telescopic end of the electric push rod 30 and the pull head of the tension sensor 28 on the inner spiral sleeve 31, one or more rubber rings are mounted on the round table 16, the first stepper motor 4 is started to drive the rotating disk 5 to rotate, the rotating disk 5 drives the first adjusting screw 3 and the first movable block 2 to rotate, the first movable block 2 drives the second pin shaft 26 to revolve, the second pin shaft 26 reciprocates in the movable groove and drives the mounting plate 6 to swing back and forth, the second pin shaft 26 drives the connecting rod 27 to move, so that the two third pin shafts and their The tension sensor 28 on the truncated plate 16 repeatedly moves away from and approaches, thereby repeatedly stretching the rubber ring for detection. When the mounting plate 6 swings back and forth, it drives the truncated plate 16 to reciprocate relative to the arc plate 13. The arc plate 13 repeatedly rubs and squeezes the rubber ring on the truncated plate 16 for detection. At the same time, the second pin shaft 26 drives the outer spiral rod 32 to reciprocate relative to the inner spiral sleeve 31. The outer spiral rod 32 drives the inner spiral sleeve 31 to rotate. The inner spiral sleeve 31 drives one end of the rubber ring to rotate continuously, and the torsion detection is performed on the rubber ring. The rubber ring can be tested in multiple modes at the same time. The structure is simple and the design is ingenious, which can meet more detection needs.

[0101] It should be noted that, for the above embodiments, for the sake of simplicity, they are all described as a series of action combinations, but those skilled in the art should know that the present invention is not limited by the described order of actions, because according to the present invention, some steps may be performed in other orders or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present invention.

[0102] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the protection scope of the invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

Claims

1. An adjustable rubber ring mechanical properties testing device, comprising: Box; The detection unit installed in the box is characterized in that the detection unit includes: Tensile structure, used for tensile testing of rubber rings; Friction structure, used for friction detection of rubber ring; Torsion structure, used for torsion detection of rubber ring; A driving structure, used for driving the tensile structure, the friction structure and the torsion structure to move synchronously; An adjusting structure, used for adjusting the detection strength of the tensile structure, the friction structure and the torsion structure on the rubber ring; The driving structure comprises: A first stepper motor is fixed to the bottom of the inner cavity of the box, and a rotating disk is fixed on the output shaft of the first stepper motor; A mounting plate is arranged above the rotating disk, a first pin is rotatably mounted on the mounting plate at one side of the rotating disk, and the first pin is fixed to the bottom of the inner cavity of the box; A second pin shaft is eccentrically mounted vertically on the rotating disk, and a movable groove is provided on the mounting plate along its length direction for the second pin shaft to pass through and move; The tensile structure comprises: Connecting rod, two connecting rods are hinged on the first pin shaft and the second pin shaft above the mounting plate, and the connecting rods on the first pin shaft and the second pin shaft are hinged in pairs through the third pin shaft to form a diamond structure; Tension sensors are respectively fixed on the two third pins, and a rubber ring is connected between the pull heads of the two tension sensors; The friction structure comprises: A truncated table rotatably mounted on one end of the mounting plate away from the rotating disk, wherein a plurality of annular grooves for mounting rubber rings are provided along the axial direction of the truncated table; An arc-shaped plate is arranged on the side of the truncated table away from the first pin shaft, the center of the arc-shaped plate is located on the axis of the first pin shaft, the inner side wall of the arc-shaped plate is parallel to the side surface of the truncated table, a pressure sensor is connected between the arc-shaped plate and the side wall of the box body, and is used to detect the squeezing force of the arc-shaped plate on the rubber ring, and the distance between the inner side wall of the arc-shaped plate and the bottom of the annular groove is less than the thickness of the rubber ring; The torsion structure comprises an outer spiral rod, an inner spiral sleeve and an electric push rod, a mounting frame is fixed to one end of the mounting plate away from the truncated table, an outer spiral rod is hinged on the second pin shaft, the outer spiral rod extends into the mounting frame along the length direction of the mounting plate, an inner spiral sleeve is sleeved on the outer spiral rod and spirally matched with the outer spiral rod, the inner spiral sleeve is rotatably mounted on the mounting frame, an electric push rod is fixedly mounted on one end of the mounting frame away from the mounting plate, the telescopic end of the electric push rod is coaxially arranged with the inner spiral sleeve, and tension sensors are respectively mounted on the telescopic end of the electric push rod and the end of the inner spiral sleeve away from the mounting plate, and a rubber ring is connected between the pull heads of the two tension sensors; The regulating structure comprises: Rotating a first adjusting screw mounted on the rotating disk, wherein the first adjusting screw is arranged along the radial direction of the rotating disk; A first movable block is threadedly connected to the first adjusting screw rod, the first movable block is slidably connected to the rotating disk, and the second pin shaft is fixed to the first movable block.

2. The adjustable rubber ring mechanical property testing device according to claim 1, characterized in that: An arc-shaped cavity is provided in the arc-shaped plate, and an airbag is arranged in the arc-shaped cavity. A plurality of protruding plates are adhered at intervals on the side wall of the airbag close to the truncated cone. The plurality of protruding plates pass through a plurality of through grooves provided on the inner wall of the arc-shaped plate and extend to the outside of the arc-shaped plate. An inflation and deflation air pump is installed on the side wall of the box body, and the inflation and deflation air pump is connected to the airbag through a soft air tube.

3. The adjustable rubber ring mechanical property testing device according to claim 1, characterized in that: An environmental simulation unit is installed on the box, and the environmental simulation unit includes: The electric heating element is arranged in the box body, and is used to heat the box body; An atomizing nozzle arranged in the box body is used to spray atomized liquid into the box body; The driving mechanism installed on the box body is used to drive the electric heating element and the atomizing nozzle to move.

4. The adjustable rubber ring mechanical property testing device according to claim 3, characterized in that: The driving mechanism comprises: A vertical pipe that runs through the middle of the top of the box and extends into the box, and the vertical pipe is rotatably connected to the top of the box; A mounting tube integrally connected to the bottom end of the vertical tube, a plurality of the electric heating elements and the atomizing nozzles are installed at intervals on the lower surface of the mounting tube, and the liquid inlet of the atomizing nozzle is connected to the inner cavity of the mounting tube; A power component used to drive the vertical pipe to rotate.

5. The adjustable rubber ring mechanical property testing device according to claim 4, characterized in that: A plurality of liquid boxes are arranged on the top of the box body, each of which contains different liquids, and a pump body is arranged in the liquid box, and the pump outlet of the pump body is connected to the vertical pipe through a liquid supply pipeline; The liquid supply pipeline includes a main pipeline and a branch pipeline, the main pipeline vertically penetrates into the vertical pipe and is rotatably connected thereto, the main pipeline is connected to a plurality of branch pipelines, each branch pipeline extends into a liquid tank and is connected to the pump outlet of the pump body, and each branch pipeline is respectively installed with a one-way valve; Sensors are installed in the box, and the sensors include a temperature sensor and a humidity sensor. The temperature sensor and the humidity sensor are electrically connected to a temperature and humidity controller outside the box, and the temperature and humidity controller is electrically connected to the electric heating element and the pump body.

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