An experimental device for fatigue detection of heavy couplings

Abstract

The invention discloses an experimental equipment for fatigue detection of heavy-duty couplings, relates to the technical field of fatigue experiments of heavy-duty couplings, comprises an experimental body, an adjusting component and a limiting component, a driving box is installed on the experimental body, a swing angle adjuster is installed on one end of the driving box, a driving disk is connected to the end of the swing angle adjuster, a slide rail is fixedly connected to the experimental body, a sliding box is slidably connected to the slide rail, a rotating shaft is rotatably connected to the sliding box, a brake disc is fixedly connected to one end of the rotating shaft, the ends of the brake disc and the driving disc are fixedly connected to the fixed disc, and the other end of the rotating shaft is fixedly connected to the rotating disc; the adjusting component comprises a rubber pad arranged to fit the rotating disc, and the invention can perform fatigue experiments on couplings of different specifications and test the maximum torque value of the coupling through the mutual cooperation of the adjusting component and the limiting component, thereby solving the problem in the prior art that the testing machine has a single function and cannot be applied to different experiments of multiple couplings.

Description

Technical Field

[0001] The invention relates to the technical field of heavy coupling fatigue experiments, in particular to an experimental device for heavy coupling fatigue detection. Background Art

[0002] Heavy-duty coupling is a mechanical device used to connect two shafts. It has the characteristics of high load-bearing capacity and strong durability. It is suitable for occasions with large torque and high speed. Heavy-duty coupling can be divided into many types according to different connection methods and applicable occasions. Each type has its specific application scenarios and technical characteristics.

[0003] At present, before a heavy-duty coupling is put into use, the coupling data needs to be evaluated to determine whether the coupling is competent for the work of mechanical transmission. Therefore, before the coupling is put into use, a fatigue detection experiment needs to be performed on the coupling. However, the fatigue testing machine in the prior art has a relatively single function and cannot be applied to a variety of couplings for different experiments. To this end, the present invention proposes an experimental device for fatigue detection of heavy-duty couplings. Summary of the invention

[0004] The purpose of the present invention is to provide an experimental device for fatigue detection of heavy-duty couplings, so as to solve the problems raised in the above-mentioned background technology. In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: an experimental device for fatigue detection of heavy-duty couplings, including an experimental body, an adjustment component and a limit component, a drive box is installed on the experimental body, a swing angle adjuster is installed on one end of the drive box, and a drive disk is connected to the end of the swing angle adjuster, and a slide rail is also fixedly connected to the experimental body, a sliding box is slidably connected to the slide rail, and a rotating shaft is rotatably connected to the sliding box, and a brake disc is fixedly connected to one end of the rotating shaft, and the ends of the brake disc and the drive disc are fixedly connected to a fixed disc, and the other end of the rotating shaft is fixedly connected to a rotating disc, and a plurality of groups of pressure sensors are arranged in the rotating disc; the adjustment component includes a pressure sensor that fits the rotating disc. A rubber pad is provided, and multiple groups of first springs are fixedly connected to the rubber pad, the end of the first spring is fixedly connected to a sliding cover, the end of the sliding cover is fixedly connected to a sleeve, and a moving part is connected to the sleeve; the limit assembly includes multiple groups of limit columns, multiple groups of limit columns are slidably connected to the rotating disk, and the rotating disk is provided with limit grooves adapted to the limit columns, a third spring is fixedly connected inside the limit column, the end of the third spring is fixedly connected to a sliding column slidably connected to the limit column, and the ends of multiple groups of sliding columns are fixedly connected to connecting rings, and through the cooperation of the adjustment assembly and the limit assembly, it is convenient to experiment with heavy-duty couplings under different conditions, thereby improving the multifunctional applicability of the experimental machine.

[0005] Preferably, the swing angle adjuster includes a first articulated seat connected to the drive box, the end of the first articulated seat is rotatably connected to a rotatable connecting rod, the end of the rotatable connecting rod is rotatably connected to a second articulated seat fixedly connected to the drive disk, the outer side surface of the rotatable connecting rod is sleeved with a movable block, the bottom end of the movable block is rotatably connected to a movable rod, and the bottom end of the movable rod is fixedly connected to a telescopic rod fixed to the inside of the experimental body.

[0006] Preferably, the adjustment assembly includes a fixed cover fixedly connected to the sliding box, the fixed cover is slidably connected to the limiting column, and a connecting cover is fixedly connected inside the fixed cover, the connecting cover is slidably connected to the rubber pad, and the connecting cover is slidably connected to the sliding cover.

[0007] Preferably, the moving part includes a threaded block fixedly connected to the sleeve, the threaded block is threadedly connected to a threaded column rotatably connected to the sliding box, one end of the threaded column is fixedly connected to a connecting shaft, an elastic member is installed on the outer side of the connecting shaft, and the other end of the threaded column is fixedly connected to a connecting column, a prismatic column is slidably connected between the connecting column and the threaded column, and the end of the prismatic column is connected to a driving member to facilitate driving the sleeve and the sliding cover to move.

[0008] Preferably, the elastic member includes a fixing plate fixedly connected to the connecting shaft, a second spring sleeved on the outer side surface of the connecting shaft is fixedly connected to the fixing plate, an end of the second spring is fixedly connected to a sliding plate slidably connected to the connecting shaft, and the sliding plate is sleeved on the outer side surface of the threaded column to facilitate the resetting of the threaded block.

[0009] Preferably, the driving member includes a fixing frame fixedly connected to the experimental body, a motor is fixedly connected to the fixing frame, a driving shaft is fixedly connected to the output end of the motor, a driving wheel is fixedly connected to the driving shaft, the outer side surface of the driving wheel is transmission-connected to a belt, the belt is transmission-connected to a driven wheel, the axis of the driven wheel is fixedly connected to a transmission shaft fixedly connected to the prismatic column, and the outer side surface of the transmission shaft is rotatably connected to a fixing seat fixedly connected to the experimental body, so as to provide a stable driving force.

[0010] Preferably, the limiting assembly includes a moving block installed on the outer side surface of the connecting column and slidably connected to the connecting column, the moving block is threadedly connected to the threaded column, and a sliding plate is fixedly connected to the moving block, a plurality of groups of connecting rods are fixedly connected to the sliding plate, the plurality of groups of connecting rods are all fixedly connected to the connecting ring, and a pull rod fixedly connected to the sleeve is slidably connected to the sliding plate, and a pulling piece is connected to the moving block to facilitate limiting the rotating disk so that the brake disk cannot rotate.

[0011] Preferably, the pulling member includes a fixed sleeve fixedly connected to the moving block, the fixed sleeve is fixedly connected to a tension spring sleeved on the outer side of the connecting column, and the end of the tension spring is fixedly connected to a support plate fixedly connected to the connecting column, so as to facilitate pulling the sliding plate to reset.

[0012] Preferably, a protective cover is slidably connected to the experimental body, and an operating screen is provided on the experimental body to facilitate control of the equipment through the operating screen. The protective cover is convenient for protecting the experimenter to avoid injury to the experimenter after failure of the heavy coupling.

[0013] Preferably, the end of the limit column is set in a cone shape to facilitate the correspondence between the limit column and the limit groove. Multiple groups of the limit columns are arranged equidistantly on the fixed cover in a circle to facilitate limiting the rotating disk and make the limit column evenly stressed, thereby avoiding the limit column breaking during testing and affecting the experimental data.

[0014] The present invention has at least the following beneficial effects:

[0015] The present invention provides an experimental equipment for fatigue detection of heavy-duty couplings. During the experiment of the heavy-duty coupling, the position of the sliding box is adjusted, and then the two ends of the heavy-duty coupling are fixed to one end of the brake disc and the driving disc respectively through two sets of fixed discs. The two sets of fixed discs in this scheme are three-claw fixers in the prior art. The two ends of the heavy-duty coupling are quickly fixed by the two sets of three-claw fixers. During the experiment, the load force of the rotating disc is adjusted according to the specifications of the coupling. Then, the driving disc is driven to rotate by starting the experimental body, and the fixed disc and the heavy-duty coupling are driven to rotate by the rotation of the driving disc. The rotation of the heavy-duty coupling drives the brake disc to drive the rotating shaft and the rotating disc to rotate. After the heavy-duty coupling rotates for a period of time, the experimental body controls the driving disc. Reverse, and then reverse the heavy coupling for a period of time through the action of the driving disk, and repeat the above steps until the coupling structure fails. At this time, the number of rotations of the driving disk is counted to obtain the fatigue life of the coupling. The load force when the rotating disk rotates can be adjusted through the action of the adjusting component, so that it is convenient for the device to test couplings of different specifications, and the rotating disk is limited by the cooperation of the limiting component, so that the rotating disk and the brake disk are locked, which is convenient for the maximum torque value test of the coupling. Therefore, through the mutual cooperation of the adjusting component and the limiting component, fatigue tests can be carried out on couplings of different specifications, and the maximum torque value of the coupling can be tested, which solves the problem that the testing machine in the prior art has a single function and cannot be applied to different experiments of multiple couplings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2It is a schematic diagram of the cross-sectional structure of the present invention;

[0018] Figure 3 It is a schematic diagram of the connection structure of the limit assembly and the adjustment assembly of the present invention;

[0019] Figure 4 This is a schematic diagram of the connection structure of the brake disc, the rotating disc and the fixed disc of the present invention;

[0020] Figure 5 This is a schematic diagram of the structure of the regulating component of the present invention;

[0021] Figure 6 It is a schematic diagram of the connection structure between the rubber pad and the connection cover of the present invention;

[0022] Figure 7 It is a schematic diagram of the structure of the moving part of the present invention;

[0023] Figure 8 For the present invention Figure 7 Schematic diagram of the structure of the middle A area;

[0024] Fig. 9 It is a schematic diagram of the structure of the limit assembly of the present invention;

[0025] Fig.10 For the present invention Fig. 9 Schematic diagram of the structure of the middle B area;

[0026] Fig.11 This is a schematic diagram of the connection structure between the sleeve and the sliding plate of the present invention;

[0027] Fig.12 For the present invention Fig.11 Schematic diagram of the structure of the middle C area;

[0028] Fig.13 It is a structural schematic diagram of the swing angle regulator of the present invention;

[0029] Fig.14 For the present invention Fig.12 Schematic diagram of the structure of the middle D area.

[0030] In the figure: 1-experimental body; 2-driving disc; 3-slide rail; 4-sliding box; 5-rotating shaft; 6-brake disc; 7-fixed disc; 8-rotating disc; 9-adjusting assembly; 10-rubber pad; 11-limiting assembly; 12-limiting column; 13-limiting groove; 14-fixing cover; 15-connecting cover; 16-sliding cover; 17-first spring; 18-sleeve; 19-moving member; 20-thread block; 21-threaded column; 22-prismatic column; 23-driving member; 24-connecting shaft; 25-elastic member; 26-fixed sheet; 27-second spring; 28-sliding sheet; 29-fixed frame; 30-electric Machine; 31-driving shaft; 32-driving wheel; 33-belt; 34-driven wheel; 35-transmission shaft; 36-fixed seat; 37-moving block; 38-sliding plate; 39-connecting rod; 40-connecting ring; 41-sliding column; 42-third spring; 43-pull rod; 44-pulling piece; 45-connecting column; 46-fixing sleeve; 47-tension spring; 48-support sheet; 49-protective cover; 50-operating screen; 51-driving box; 52-swing angle adjuster; 53-first hinge seat; 54-rotating connecting rod; 55-second hinge seat; 56-movable block; 57-movable rod; 58-telescopic rod. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] See also Figure 1-Figure 14The present invention provides a technical solution: an experimental device for fatigue detection of heavy-duty couplings, comprising an experimental body 1, an adjustment component 9 and a limit component 11, a driving box 51 is installed on the experimental body 1, a swing angle adjuster 52 is installed at one end of the driving box 51, and a driving disc 2 is connected to the end of the swing angle adjuster 52, a slide rail 3 is fixedly connected to the experimental body 1, a sliding box 4 is slidably connected to the slide rail 3, a rotating shaft 5 is rotatably connected to the sliding box 4, a brake disc 6 is fixedly connected to one end of the rotating shaft 5, the ends of the brake disc 6 and the driving disc 2 are fixedly connected to a fixed disc 7, and the other end of the rotating shaft 5 is fixedly connected to a rotating disc 8, the rotating disc 8 There are multiple groups of pressure sensors arranged inside; the adjusting component 9 includes a rubber pad 10 arranged in contact with the rotating disk 8, and the adjusting component 9 applies different extrusion forces to the rubber pad 10 to adjust the load force when the rotating disk 8 rotates; the limiting component 11 includes multiple groups of limiting columns 12, and the multiple groups of limiting columns 12 are all slidably connected with the rotating disk 8, and the rotating disk 8 is provided with limiting grooves 13 matched with the limiting columns 12. The limiting component 11 limits the rotating disk 8 through the action of the limiting columns 12 and the limiting grooves 13. Through the cooperation of the adjusting component 9 and the limiting component 11, it is convenient to experiment with heavy-duty couplings under different conditions, thereby improving the multifunctional applicability of the experimental body 1.

[0033] In the present embodiment, during the experiment of the heavy-duty coupling, the position of the sliding box 4 is adjusted, and then the two ends of the heavy-duty coupling are fixed to the brake disc 6 and one end of the driving disc 2 respectively through two sets of fixed discs 7. The two sets of fixed discs 7 in this scheme are three-claw fixers in the prior art. The two ends of the heavy-duty coupling are quickly fixed by two sets of three-claw fixers. During the experiment, different extrusion forces are applied to the rubber pad 10 through the action of the adjustment component 9, so that the load force when the rotating disc 8 rotates is different, which facilitates the experiment of heavy-duty couplings of different specifications. After that, the experimental body 1 is started to drive the driving disc 2 to rotate, and the rotation of the driving disc 2 drives the fixed disc 7 and the heavy-duty coupling to rotate. The rotation of the heavy-duty coupling causes the brake disc 6 to drive the rotating shaft 5 and the rotating disc 8 to rotate. At this time, the load force of the rotating disc 8 is set according to the specifications of the heavy-duty coupling.

[0034] Specifically, during the heavy-duty coupling experiment, a suitable load force is selected according to the specifications of the heavy-duty coupling. By adjusting the component 9 and the feedback of the pressure sensor, the load force of the rotating disk 8 reaches a suitable value. Then, the experimental body 1 is started to drive the driving disk 2 to rotate, and the rotation of the driving disk 2 drives the fixed disk 7 and the heavy-duty coupling to rotate. The rotation of the heavy-duty coupling drives the brake disk 6 to drive the rotating shaft 5 and the rotating disk 8 to rotate. After the heavy-duty coupling rotates for a period of time, the experimental body 1 controls the driving disk 2 to reverse, and then the heavy-duty coupling is reversed for a period of time through the action of the driving disk 2. The above steps are repeated until the coupling structure fails. At this time, the number of rotations of the driving disk 2 is counted to obtain the fatigue life of the coupling.

[0035] Specifically, when detecting the maximum torque value of the coupling, the rotating disk 8 is locked by the action of the limit assembly 11. Since the rotating disk 8 is connected to the brake disk 6 through the rotating shaft 5, the brake disk 6 is locked after the rotating disk 8 is locked. At this time, the driving disk 2 rotates to rotate the coupling, and the brake disk 6 is locked, so that the brake disk 6 cannot rotate with it. At this time, during the rotation of the driving disk 2, different torques are applied to the driving disk 2 until the coupling structure fails, and the maximum torque value that the coupling can bear can be detected.

[0036] The adjustment assembly 9 includes a fixed cover 14 fixedly connected to the sliding box 4, the fixed cover 14 is slidably connected to the limit column 12, and a connecting cover 15 is fixedly connected inside the fixed cover 14, the connecting cover 15 is slidably connected to the rubber pad 10, and a plurality of groups of first springs 17 are fixedly connected to the rubber pad 10, the ends of the plurality of groups of first springs 17 are fixedly connected to sliding covers 16 slidably connected to the connecting cover 15, the ends of the sliding cover 16 are fixedly connected to a sleeve 18, and a moving member 19 for driving the sleeve 18 to move is connected to the sleeve 18, so as to apply different extrusion forces to the rubber pad 10; the moving member 19 includes a threaded block 20 fixedly connected to the sleeve 18, and a threaded column rotatably connected to the sliding box 4 is threadedly connected to the threaded block 20 21, one end of the threaded column 21 is fixedly connected to a connecting shaft 24, an elastic member 25 is installed on the outer side of the connecting shaft 24, and the other end of the threaded column 21 is fixedly connected to a connecting column 45, and a prismatic column 22 is slidably connected inside the connecting column 45 and the threaded column 21, and the end of the prismatic column 22 is connected to a driving member 23, which is convenient for driving the sleeve 18 and the sliding cover 16 to move; the elastic member 25 includes a fixing plate 26 fixedly connected to the connecting shaft 24, and a second spring 27 is fixedly connected to the fixing plate 26 and sleeved on the outer side of the connecting shaft 24, and the end of the second spring 27 is fixedly connected to a sliding plate 28 slidably connected to the connecting shaft 24, and the sliding plate 28 is sleeved on the outer side of the threaded column 21 to facilitate the resetting of the threaded block 20.

[0037] In the present embodiment, when the load force of the rotating disk 8 is adjusted, the driving member 23 is started, and the prismatic column 22 is driven to rotate by the action of the driving member 23, and then the connecting column 45 and the threaded column 21 are driven to rotate by the action of the prismatic column 22, and then the threaded block 20 is driven to move by the rotation of the threaded column 21, and the sleeve 18 drives the sliding cover 16 to move through the movement of the threaded block 20, and then the first spring 17 is squeezed by the movement of the sliding cover 16, so as to apply different squeezing forces to the rubber pad 10. The squeezing force in this scheme is fed back to the control center through the pressure sensor provided in the rotating disk 8, so as to clearly understand the current load force information on the rotating disk 8.

[0038] Specifically, after the threaded column 21 rotates to move the threaded block 20 to the end position of the threaded column 21, the maximum squeezing force is applied to the rubber pad 10. Since the threaded block 20 is disengaged from the threaded column 21, the rotation of the threaded column 21 will not continue to drive the threaded block 20 to move. However, the movement of the threaded block 20 will squeeze the second spring 27, so that the threaded block 20 and the threaded column 21 are always in a fitted state, thereby facilitating the reversal of the threaded column 21 to reset the threaded block 20.

[0039] The limiting assembly 11 includes a moving block 37 mounted on the outer side of the connecting column 45 and slidably connected to the connecting column 45, the moving block 37 is threadedly connected to the threaded column 21, and a sliding plate 38 is fixedly connected to the moving block 37, and a plurality of connecting rods 39 are fixedly connected to the sliding plate 38, and a connecting ring 40 is fixedly connected to the end of the connecting rod 39, and a plurality of sliding columns 41 are fixedly connected to the connecting ring 40, and the plurality of sliding columns 41 are respectively slidably connected to the plurality of limiting columns 12, and the ends of the sliding columns 41 are fixedly connected to the limiting columns 12. A third spring 42 is fixedly connected, and a pull rod 43 fixedly connected to the sleeve 18 is slidably connected to the sliding plate 38, and a pulling member 44 is connected to the moving block 37, which is convenient for limiting the rotating disk 8 so that the brake disc 6 cannot rotate; the pulling member 44 includes a fixed sleeve 46 fixedly connected to the moving block 37, and a tension spring 47 sleeved on the outer side of the connecting column 45 is fixedly connected to the fixed sleeve 46, and the end of the tension spring 47 is fixedly connected to a support sheet 48 fixedly connected to the connecting column 45, which is convenient for pulling the sliding plate 38 to reset.

[0040] In this embodiment, after the threaded block 20 drives the sleeve 18 to move, the sliding plate 38 will be driven to move through the action of the pull rod 43, and the movement of the sliding plate 38 will cause the moving block 37 to move. After the moving block 37 moves, it will fit with the threaded column 21. At this time, the rotation of the threaded column 21 will drive the moving block 37 to move, and the movement of the moving block 37 will continue to drive the sliding plate 38 to move, thereby continuing to drive the connecting rod 39 and the connecting ring 40 to move, and the sliding column 41 will move through the continued movement of the connecting ring 40. The movement of the sliding column 41 causes the third spring 42 to drive the limiting column 12 to move, and the limiting column 12 will fit with the rotating disk 8 after it moves. 8 After being fitted, two situations may occur. The first is that the limit column 12 just corresponds to the limit groove 13. At this time, the limit column 12 is just inserted into the limit groove 13 to limit the rotating disk 8. The second is that the limit column 12 and the limit groove 13 are misaligned. At this time, the limit column 12 fits the rotating disk 8, and the movement of the sliding column 41 will cause compression to the third spring 42. In this state, the coupling drives the brake disc 6 to rotate through the start of the experimental body 1, and the rotating disk 8 is rotated through the rotation of the brake disc 6. During the rotation of the rotating disk 8, the limit groove 13 will correspond to the limit column 12, and then the limit column 12 is stuck into the limit groove 13 through the action of the third spring 42 to limit the rotating disk 8.

[0041] The driving member 23 includes a fixing frame 29 fixedly connected to the experimental body 1, a motor 30 is fixedly connected to the fixing frame 29, a driving shaft 31 is fixedly connected to the output end of the motor 30, a driving wheel 32 is fixedly connected to the driving shaft 31, the outer side surface of the driving wheel 32 is transmission-connected to a belt 33, the belt 33 is transmission-connected to a driven wheel 34, the axis of the driven wheel 34 is fixedly connected to a transmission shaft 35 fixedly connected to the prismatic column 22, and the outer side surface of the transmission shaft 35 is rotatably connected to a fixing seat 36 fixedly connected to the experimental body 1, so as to provide a stable driving force.

[0042] In this embodiment, by starting the motor 30, the motor 30 is a forward and reverse motor 30. When the motor 30 rotates forward, it will drive the drive shaft 31 to rotate forward. The rotation of the drive shaft 31 will drive the active wheel 32 to rotate, and then drive the driven wheel 34 to rotate through the belt 33, and then drive the transmission shaft 35 to rotate, thereby driving the prismatic column 22 to rotate, and then drive the threaded column 21 to rotate. In this state, the rotation of the threaded column 21 drives the moving block 37 and the threaded block 20 to move toward the rotating disk 8. This process is the process of experimenting with the heavy-duty coupling.

[0043] Specifically, when the motor 30 reverses, the threaded column 21 will be driven to reverse. At this time, the reverse rotation of the threaded column 21 will reset the threaded block 20 and the moving block 37, thereby facilitating the experiment of the next set of heavy couplings.

[0044] The swing angle adjuster 52 includes a first articulated seat 53 connected to the driving box 51, the end of the first articulated seat 53 is rotatably connected to a rotating connecting rod 54, the end of the rotating connecting rod 54 is rotatably connected to a second articulated seat 55 fixedly connected to the driving disk 2, the outer side surface of the rotating connecting rod 54 is sleeved with a movable block 56, the bottom end of the movable block 56 is rotatably connected to a movable rod 57, and the bottom end of the movable rod 57 is fixedly connected to a telescopic rod 58 fixed inside the experimental body 1.

[0045] In the present embodiment, during the actual use of the coupling, the two ends of the coupling may not be on the same axis. At this time, it is necessary to experiment the situation after the coupling is deflected. At this time, the telescopic rod 58 is started, and the movable rod 57 pushes the movable block 56 to move through the action of the telescopic rod 58. The movement of the movable block 56 causes the rotating connecting rod 54 to rotate, so that the first articulated seat 53 and the second articulated seat 55 are not on the same axis. At this time, the driving disc 2 and the brake disc 6 are not on the same axis. At this time, the connection angle of the coupling between the driving disc 2 and the brake disc 6 is deflected. In this state, the experimental motor inside the drive box 51 is started to drive the reducer to rotate the first articulated seat 53, thereby simulating the use of the coupling under the deflection angle. In this state, the coupling is driven to rotate forward and reversely through the forward and reverse rotation of the experimental motor. The forward and reverse rotations are repeatedly rotated for a period of time until the coupling structure fails. At this time, the number of rotations of the driving disc 2 and the brake disc 6 is counted to obtain the fatigue life of the coupling.

[0046] In this solution, the end of the limit column 12 is set in a cone shape, which is convenient for the limit column 12 to correspond to the limit groove 13. Multiple groups of limit columns 12 are arranged equidistantly on the fixed cover 14 in a circle, which is convenient for limiting the rotating disk 8 and making the limit column 12 evenly stressed, so as to avoid the limit column 12 breaking during the test and affecting the experimental data. A protective cover 49 is slidably connected to the experimental body 1, and an operating screen 50 is provided on the experimental body 1, so as to facilitate the control of the equipment through the operating screen 50. The protective cover 49 is convenient for protecting the experimenter to avoid injury to the experimenter after the heavy coupling fails.

[0047] During the implementation process: the driving box 51 in this solution is provided with an experimental motor and a reducer, the output end of the reducer is connected to the first hinge seat 53, and the experimental body 1 can perform the following experiments on the coupling:

[0048] First, when the driving disc 2 and the brake disc 6 are coaxial, the two ends of the coupling are in a coaxial state: at this time, by adjusting the position of the sliding box 4, the two ends of the heavy-duty coupling are fixed to the brake disc 6 and one end of the driving disc 2 through two sets of fixed discs 7 respectively. The two sets of fixed discs 7 in this scheme are three-claw fixers in the prior art. The two ends of the heavy-duty coupling are quickly fixed by two sets of three-claw fixers. During the experiment, the load force suitable for the rotating disc 8 is selected according to the specifications of the heavy-duty coupling. During the adjustment process, the motor 30 is controlled by the operating screen 50. The rotation of the motor 30 will drive the driving shaft 31 to rotate forward, and the rotation of the driving shaft 31 will drive the driving wheel 32 to rotate, and then the driven wheel 34 will rotate through the belt 33, and then the transmission shaft 35 will rotate, thereby driving the prismatic column 22 to rotate, and then the rotation of the prismatic column 22 drives the connecting column 45 and the threaded column 21 to rotate, and when the threaded column 21 rotates, it will drive the threaded block 20 to move, and the movement of the threaded block 20 makes the sleeve 18 drive the sliding cover 16 to move, and then the movement of the sliding cover 16 squeezes the first spring 17, so that the rubber The rubber pad 10 applies different extrusion pressures. The extrusion pressure in this scheme is fed back to the control center through the pressure sensor set in the rotating disk 8, so as to clearly understand the current load force information on the rotating disk 8. When the pressure information detected by the pressure sensor matches the information required by the current heavy-duty coupling specifications, the motor 30 stops running. At this time, the experimental body 1 is started to make the experimental motor and reducer inside the drive box 51 run, so that the first hinge seat 53 is driven to rotate by the operation of the reducer, and the rotation of the first hinge seat 53 drives the second hinge seat 55 to rotate by the rotating connecting rod 54, thereby driving the drive disk 2 to rotate, and the rotation of the drive disk 2 drives the fixed disk 7 and the heavy-duty coupling to rotate, and the rotation of the heavy-duty coupling drives the brake disk 6 to drive the rotating shaft 5 and the rotating disk 8 to rotate. After the heavy-duty coupling rotates for a period of time, the experimental body 1 controls the experimental motor to reverse so that the drive disk 2 is reversed, and then the heavy-duty coupling is reversed for a period of time by the action of the drive disk 2. By repeating the above steps until the coupling structure fails, the number of rotations of the drive disk 2 is counted at this time, and the fatigue life of the coupling in this state can be obtained.

[0049] Second, when the brake disc 6 is fixed, that is, one end of the coupling is in a fixed state, a driving force is applied through the drive box 51 to detect the maximum torque value of the coupling. At this time, the control motor 30 drives the threaded column 21 to rotate forward. At this time, the rotation of the threaded column 21 will drive the threaded block 20 to move, and the movement of the threaded block 20 will drive the sleeve 18 to move. The movement of the sleeve 18 will pull the sliding plate 38 to move through the pull rod 43, and the movement of the sliding plate 38 will cause the moving block 37 to move. After the moving block 37 moves, it will engage with the screw The threaded column 21 fits, at this time, the rotation of the threaded column 21 will drive the moving block 37 threadedly connected thereto to move, and the movement of the moving block 37 will continue to drive the sliding plate 38 to move, thereby continuing to drive the connecting rod 39 and the connecting ring 40 to move, and the sliding column 41 is moved by the continued movement of the connecting ring 40, and the movement of the sliding column 41 causes the third spring 42 to drive the limiting column 12 to move, and the limiting column 12 will fit the rotating disk 8 after moving. After the limiting column 12 fits the rotating disk 8, two situations will occur. The first is that the limiting column 12 just corresponds to the limit groove 13, at this time the limit column 12 is just inserted into the limit groove 13 to limit the rotating disk 8, the second is that the limit column 12 is misaligned with the limit groove 13, at this time the limit column 12 fits the rotating disk 8, the movement of the sliding column 41 will cause compression to the third spring 42, in this state, the coupling drives the brake disc 6 to rotate by starting the experimental body 1, and the rotating disk 8 rotates by the rotation of the brake disc 6. During the rotation of the rotating disk 8, the limit groove 13 will correspond to the limit column 12, and then through the third spring 42, the rotation of the rotating disk 8 will be stopped. The three springs 42 act to cause the limit column 12 to fit into the limit groove 13 to limit the rotating disk 8, so that the rotating disk 8 is locked. Since the rotating disk 8 is connected to the brake disk 6 through the rotating shaft 5, the brake disk 6 is locked after the rotating disk 8 is locked. At this time, the driving disk 2 rotates to rotate the coupling, and the brake disk 6 is locked, so that the brake disk 6 cannot rotate with it. At this time, during the rotation of the driving disk 2, different torques are applied to the driving disk 2 until the coupling structure fails, and the maximum torque value that the coupling can bear can be detected.

[0050] Third, the fatigue life of the coupling under the angular state at both ends is simulated. At this time, the telescopic rod 58 is started, and the movable rod 57 pushes the movable block 56 to move through the action of the telescopic rod 58, and the rotating connecting rod 54 is rotated through the movement of the movable block 56, so that the deflection angle of the first hinge seat 53 and the second hinge seat 55 are not on the same axis. At this time, the driving disc 2 and the brake disc 6 are not on the same axis. At this time, the connection angle of the coupling between the driving disc 2 and the brake disc 6 is deflected. The subsequent experimental method is consistent with the experimental method when the driving disc 2 and the brake disc 6 are on the same axis, that is, the forward and reverse rotation of the motor 30 drives the coupling to rotate forward and reverse, and the forward and reverse rotations are repeatedly rotated for a period of time until the coupling structure fails. At this time, the number of rotations of the driving disc 2 and the brake disc 6 is counted to obtain the fatigue life of the coupling.

[0051] It is worth noting that: when the threaded column 21 rotates, the threaded block 20 will be driven to move. After the threaded block 20 moves to the point where it is separated from the threaded column 21, it will not move further and will squeeze the second spring 27. Through the action of the second spring 27, the threaded block 20 is always in a state of being in contact with the threaded column 21 after it is separated from the threaded column 21. After the threaded block 20 is separated from the threaded column 21, the load force at this time is the maximum load force. At the same time, the moving block 37 in this state just contacts with the threaded column 21. Afterwards, the rotation of the threaded column 21 drives the moving block 37 to move. However, since the threaded block 20 is separated from the threaded column 21, the rotation of the threaded column 21 will not drive the threaded block 20 to move. Therefore, after the maximum load force is applied to the rotating disk 8, the threaded block 20 will not move further, while the moving block 37 continues to move, so that the limiting column 12 and the limiting groove 13 correspond to limit the rotating disk 8. By the limiting column 12 and the maximum load force acting on the rotating disk 8 at the same time, the damage of the limiting column 12 can be effectively reduced.

[0052] It is particularly noted that when the moving block 37 moves, the sliding sleeve will be pulled to move so that the tension spring 47 is in a stretched state, thereby facilitating the moving block 37 to drive the sliding plate 38 to reset. That is, after the experiment is completed, the threaded column 21 is reversed by reversing the motor 30. Due to the action of the second spring 27, the threaded block 20 is always in contact with the threaded column 21, and an extrusion force in the direction of the threaded column 21 is applied to the threaded block 20. Therefore, when the threaded column 21 is reversed, the threaded block 20 will be driven to move in the opposite direction, and when the threaded column 21 is reversed, the moving block 37 will also be driven to move in the opposite direction. In the process of simultaneous movement of the threaded block 20 and the moving block 37, when the threaded block 20 moves in the opposite direction to the initial position, the moving block 37 is just separated from the threaded column 21. At this time, the moving block 37 and the sliding plate 38 are pulled to reset by the action of the tension spring 47, and the end of the pull rod 43 is in contact with the sliding plate 38, which is convenient for pulling the sliding plate 38 to move next time.

[0053] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0054] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An experimental device for fatigue detection of heavy couplings, comprising: An experimental body (1), wherein a drive box (51) is installed on the experimental body (1), a swing angle adjuster (52) is installed on one end of the drive box (51), and the end of the swing angle adjuster (52) is connected to a drive disk (2), and the experimental body (1) is also fixedly connected to a slide rail (3), a slide box (4) is slidably connected to the slide rail (3), and a rotating shaft (5) is rotatably connected to the sliding box (4), one end of the rotating shaft (5) is fixedly connected to a brake disk (6), and the ends of the brake disk (6) and the drive disk (2) are fixedly connected to a fixed disk (7), and the other end of the rotating shaft (5) is fixedly connected to a rotating disk (8), and a plurality of groups of pressure sensors are arranged in the rotating disk (8); It is characterized by further comprising: An adjustment component (9), the adjustment component (9) comprising a rubber pad (10) arranged to fit the rotating disk (8), a plurality of groups of first springs (17) being fixedly connected to the rubber pad (10), a sliding cover (16) being fixedly connected to the end of the first spring (17), a sleeve (18) being fixedly connected to the end of the sliding cover (16), and a moving member (19) being connected to the upper portion of the sleeve (18); A limit assembly (11), the limit assembly (11) comprising a plurality of groups of limit columns (12), the plurality of groups of limit columns (12) being slidably connected to the rotating disk (8), and the rotating disk (8) being provided with limit grooves (13) adapted to the limit columns (12), the limit columns (12) being fixedly connected with a third spring (42) inside, the end of the third spring (42) being fixedly connected with a sliding column (41) slidably connected to the limit columns (12), and the ends of the plurality of groups of sliding columns (41) being fixedly connected with a connecting ring (40); The adjustment assembly (9) comprises a fixed cover (14) fixedly connected to the sliding box (4), the fixed cover (14) being slidably connected to the limiting column (12), a connecting cover (15) being fixedly connected inside the fixed cover (14), the connecting cover (15) being slidably connected to the rubber pad (10), and the connecting cover (15) being slidably connected to the sliding cover (16); The moving member (19) comprises a threaded block (20) fixedly connected to the sleeve (18); a threaded column (21) is threadedly connected to the threaded block (20) and is rotatably connected to the sliding box (4); one end of the threaded column (21) is fixedly connected to a connecting shaft (24); an elastic member (25) is installed on the outer side of the connecting shaft (24); and the other end of the threaded column (21) is fixedly connected to a connecting column (45); a prismatic column (22) is slidably connected inside the connecting column (45) and the threaded column (21); and the end of the prismatic column (22) is connected to a driving member (23); The limiting assembly (11) comprises a moving block (37) mounted on the outer side surface of the connecting column (45) and slidably connected to the connecting column (45); the moving block (37) is threadedly connected to the threaded column (21); a sliding plate (38) is fixedly connected to the moving block (37); a plurality of connecting rods (39) are fixedly connected to the sliding plate (38); the plurality of connecting rods (39) are all fixedly connected to the connecting ring (40); a pull rod (43) fixedly connected to the sleeve (18) is slidably connected to the sliding plate (38); and a pulling member (44) is connected to the moving block (37).

2. The experimental equipment for fatigue detection of heavy coupling according to claim 1 is characterized in that: The swing angle adjuster (52) comprises a first articulated seat (53) connected to the drive box (51); the end of the first articulated seat (53) is rotatably connected to a rotatable connecting rod (54); the end of the rotatable connecting rod (54) is rotatably connected to a second articulated seat (55) fixedly connected to the drive disk (2); the outer side surface of the rotatable connecting rod (54) is sleeved with a movable block (56); the bottom end of the movable block (56) is rotatably connected to a movable rod (57); the bottom end of the movable rod (57) is fixedly connected to a telescopic rod (58) fixed to the inside of the experimental machine body (1).

3. The experimental equipment for fatigue detection of heavy coupling according to claim 2 is characterized in that: The elastic member (25) comprises a fixing plate (26) fixedly connected to the connecting shaft (24); a second spring (27) sleeved on the outer side surface of the connecting shaft (24) is fixedly connected to the fixing plate (26); an end of the second spring (27) is fixedly connected to a sliding plate (28) slidably connected to the connecting shaft (24); and the sliding plate (28) is sleeved on the outer side surface of the threaded column (21).

4. The experimental equipment for fatigue detection of heavy couplings according to claim 3 is characterized in that: The driving member (23) comprises a fixing frame (29) fixedly connected to the experimental body (1), a motor (30) fixedly connected to the fixing frame (29), a driving shaft (31) fixedly connected to the output end of the motor (30), a driving wheel (32) fixedly connected to the driving shaft (31), a belt (33) drivingly connected to the outer side of the driving wheel (32), a driven wheel (34) drivingly connected to the belt (33), a transmission shaft (35) fixedly connected to the prismatic column (22) at the axis of the driven wheel (34), and a fixing seat (36) fixedly connected to the experimental body (1) rotatably connected to the outer side of the transmission shaft (35).

5. The experimental equipment for fatigue detection of heavy couplings according to claim 4 is characterized in that: The pulling member (44) comprises a fixing sleeve (46) fixedly connected to the moving block (37); a tension spring (47) sleeved on the outer side of the connecting column (45) is fixedly connected to the fixing sleeve (46); and an end of the tension spring (47) is fixedly connected to a supporting sheet (48) fixedly connected to the connecting column (45).

6. The experimental equipment for fatigue detection of heavy couplings according to claim 5 is characterized in that: A protective cover (49) is slidably connected to the experimental machine body (1), and an operating screen (50) is installed on the experimental machine body (1).

7. The experimental equipment for fatigue detection of heavy couplings according to claim 6 is characterized in that: The end of the limiting column (12) is arranged in a conical shape, and a plurality of groups of the limiting columns (12) are arranged on the fixed cover (14) at equal distances in a circle.

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