CN102072815A - Mechanical supercharger coupling fatigue test device and test method thereof - Google Patents
Mechanical supercharger coupling fatigue test device and test method thereof Download PDFInfo
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- CN102072815A CN102072815A CN 201010586404 CN201010586404A CN102072815A CN 102072815 A CN102072815 A CN 102072815A CN 201010586404 CN201010586404 CN 201010586404 CN 201010586404 A CN201010586404 A CN 201010586404A CN 102072815 A CN102072815 A CN 102072815A
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- 238000005859 coupling reaction Methods 0.000 title claims abstract description 62
- 238000010998 test method Methods 0.000 title claims abstract description 14
- 238000009661 fatigue test Methods 0.000 title abstract 3
- 238000012360 testing method Methods 0.000 claims abstract description 35
- 238000007789 sealing Methods 0.000 claims description 34
- 230000001681 protective effect Effects 0.000 claims description 6
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- 239000010687 lubricating oil Substances 0.000 description 2
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- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
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- 239000012530 fluid Substances 0.000 description 1
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Abstract
The invention provides a mechanical supercharger coupling fatigue test device and a test method thereof which are applied to the field of test devices. A crank belt pulley (7) of the fatigue test device is arranged on a crank shaft (8); a rocker shaft I (10) and a rocker shaft II (23) are provided with a rocker I (22) and a rocker II (40) which are arranged at an included angle; the rocker shaft I (10) and the rocker shaft II (23) are connected with the rocker I (22) and the rocker II (40); the rocker shaft I (10) and a driven shaft I (11) are arranged on a work table (1); the rocker shaft II (23) and a driven shaft II (20) are arranged on the work table (1) through a fixed support (19); and the rocker shaft I (10) and the rocker shaft II (23) are provided with a front wheel hub (15) and a rear wheel hub (18) respectively. Through the technical scheme provided by the invention, the fatigue of a mechanical supercharger coupling can be efficiently tested, and the device is stable and reliable in movement.
Description
Technical field
The present invention relates to the test unit apparatus field, in particular, relate to a kind of mechanical supercharger shaft coupling fatigue experimental device, the invention still further relates to the test method of this shaft coupling fatigue experimental device.
Background technology
Mechanical supercharger is the enginer supercharging device of using always.A pair of intermeshing blade rotor is arranged in mechanical supercharger, and the not engagement blade of two rotors forms a control volume with housing respectively, by the continuous displacement of control volume, reaches the purpose of transmission air.As long as the air capacity that is transferred to inlet manifold just can improve admission pressure greater than instantaneous engine displacement, finally increase the density of the induced air of engine.
Mechanical supercharger is driven by engine crankshaft, and the moment of torsion of engine crankshaft is delivered on the supercharger input shaft by driving-belt and belt wheel, is delivered to main drive shaft and the final rotor rotation that drives pair of meshing via shaft coupling then.The shaft coupling of mechanical supercharger mainly is made up of front hub, torsion spring and rear-wheel hub.Torsion spring is installed in the spring chamber that is limited by front hub and rear-wheel hub, and the handle angle, two ends of torsionspring is separately fixed on front hub and the rear-wheel hub.When the mechanical supercharger shaft coupling bore positive torque, the diameter of torsion spring reduced, and finally was adjacent on the spring chamber inside surface of rear-wheel hub qualification; When the mechanical supercharger shaft coupling bore reactive torque, the diameter of torsion spring increased, and finally was adjacent on the spring chamber outside surface of front hub qualification.The buffer action of torsion spring has reduced the mechanical noise under the transfer of torque pulsating load effectively, and improving axle is dynamic property.In addition, owing to make and alignment error, distortion after the carrying and influence of temperature variation etc. can cause the variation of diaxon relative position, often can not guarantee strict centering, and this moment, shaft coupling also had the effect of the relative displacement of compensation diaxon, buffering, vibration damping.
The regular acceleration or the deceleration of automobile meeting of make-up machinery supercharger, particularly run on the automobile of city operating mode, this acceleration or deceleration are more frequent, this just makes the shaft coupling of mechanical supercharger will transmit moment of torsion forward or backwards repeatedly, this alternate load will influence the fatigue lifetime of shaft coupling, and torsion spring and before, repeated friction between the rear-wheel hub can inevitably produce wearing and tearing, the intensity of wheel hub before and after undue wear further weakens, torsion spring stress changes even ruptures, make the mechanical supercharger shaft coupling life-span reduce, when serious even cause the mechanical supercharger can't operate as normal.Therefore, the mechanical supercharger shaft coupling is very important part in the mechanical supercharger, must carry out the fatigue durability test to the mechanical supercharger shaft coupling.
The shaft coupling fatigue experimental device reciprocally swingings that the hydraulic cylinder linear reciprocating motion are converted to output that adopt in the prior art more.The complicated liquid-supplying system that also need be special of this mechanism.And existing technology can not realize the described big torsion angle fatigue that surpasses 180 ° of this experiment.
Summary of the invention
Technical matters to be solved by this invention is: at the deficiencies in the prior art, provide the torture test of a kind of realization mechanical supercharger shaft coupling high efficiency, motion is steady, reliable, the mechanical supercharger shaft coupling fatigue experimental device that precision is higher.
Solve above-described technical matters, the technical scheme that the present invention takes is:
The present invention is a kind of mechanical supercharger shaft coupling fatigue experimental device, described fatigue experimental device comprises motor, by motor-driven crank axle, rocker shaft I, rocker shaft II, described crank axle is driven by the crank belt wheel, be respectively arranged with on rocker shaft I and the rocker shaft II and be rocking bar I and the rocking bar II that angle is arranged, described rocker shaft I is connected with rocking bar II with rocking bar I respectively with rocker shaft II, described crank axle is installed on the worktable by the crank bearing, described rocker shaft I and rocker shaft II are installed on the worktable by hold-down support respectively, rocker shaft I, front hub and rear-wheel hub are set respectively on the rocker shaft II.
Described motor and hold-down support are installed in the mounting hole on the worktable, described sliding support is inlaid on the worktable by the guide rail activity, crank I and crank II are set on the described crank axle, crank axle is connected with rocking bar II with rocking bar I respectively with crank II by crank I, the position that described rocker shaft I, rocker shaft II go up near front hub and rear-wheel hub also is respectively arranged with gear I and gear II, respectively is provided with one on front hub and the rear-wheel hub and clamps the hole.
Described crank axle is installed on the crank bearing by bearing I I, described rocking bar I and rocking bar II are provided with and are the structure that 45-270 degree angle is arranged, crank belt wheel both sides also are provided with the clip that prevents crank belt wheel axial float, and the crank belt wheel is connected by the electrical machine belt pulley of belt with motor one end.
Described shaft coupling fatigue experimental device also comprises slave unit, described slave unit comprises driven shaft I, driven shaft II, bearing I 33, gear III, gear IV, gear III on the described slave unit, gear IV meshes with gear I and gear II respectively, and described rocker shaft I and driven shaft I are fitted on the sliding support by two pressure plates I, and rocker shaft II and driven shaft II are positioned on the hold-down support by two pressure plates II.
Described fatigue experimental device also comprises the gauge tap that the control test unit opens and closes, regulate the speed governing knob of test unit rotating speed, photoelectric sensor by infrared detection crank axle rotating speed, the rotating speed display, described photoelectric sensor is installed in crank belt wheel top position, described gauge tap, speed governing knob, the rotating speed display, photoelectric sensor is arranged on the worktable.
Described slave unit is fixedly mounted on the worktable by sliding support and hold-down support, side guard plate is set around the described worktable, the protective cover that covers in fatigue experimental device is set on the fatigue experimental device, and described side guard plate and oil sealing bearing, worktable constitute sealed space between the surface.
Be set to dovetail groove and rail engaging structure between described sliding support and the guide rail, sliding support is set to and can be free to slide structure along the guide rail that dovetail groove slides.
Described crank I is connected by key and carries on the back cap with crank II and is axially fixed in the crank axle two ends, is connected by key between described crank belt wheel and the crank axle.
Described crank belt wheel both sides are provided with an oil sealing I and oil sealing II respectively, described crank I and connecting rod I, pass through pin respectively between crank II and the connecting rod II, needle bearing and nut connect, described bearing I I is provided with two, lay respectively between oil sealing I and the crank I, between oil sealing II and the crank II, be set to the structure of interference fit between described bearing I I and the crank axle.
The invention still further relates to a kind of test method of mechanical supercharger shaft coupling fatigue experimental device, the test procedure of described test method comprises:
When a) described mechanical supercharger shaft coupling fatigue experimental device begins to test, earlier sliding support is shifted onto on one side along the guide rail direction, two handle angles with torsionspring are placed on clamping in the hole on front hub and the rear-wheel hub respectively then, again with the fixing sliding support of pin.
B) open gauge tap, driven by motor crank I and crank II rotate, and crank I and crank II drive rocking bar I by connecting rod I and connecting rod II and rocking bar II does reciprocally swinging.
C) described rocking bar I and rocking bar II drive rocker shaft I and rocker shaft II do reciprocally swinging, thereby realize that rocker shaft I and rocker shaft II realize reciprocal turn-back, described gear I and gear II are respectively by gear III, and gear IV drives driven shaft I and driven shaft II does reciprocal turn-back swing.
Adopt technical scheme of the present invention, can obtain following beneficial effect:
The present invention is by above these shirtsleeve operations, realized the torture test of mechanical supercharger shaft coupling high efficiency reliably, because two design of planar crank and rocker mechanisms direction of motion are opposite, two rocking bar swing forms the angle addition, so just can realize that general mechanism is difficult to the big windup-degree of realizing.
The scope of the angle of described rocking bar I and rocking bar II, the requirement of the torsionspring of testing as required can be carried out different selections.
In addition, the speed governing knob 3 among the present invention is finished the rotating speed adjustment of motor 31, and rotating speed is set, and stops automatically when reaching the appointment rotating speed, thereby realizes unmanned operation.
The present invention is under the situation that power allows, and the same mechanical supercharger shaft coupling that requires of many groups can be done fail-test simultaneously.Save time the purpose of raising the efficiency thereby reach.
The present invention's campaign is steady relatively, reliable, and precision is higher.
The present invention adopts dovetail groove guide rail slide mechanism, guarantees to change torsionspring fast, reliably when only doing the torsionspring torture test, saves time, and raises the efficiency.
The present invention finishes the rotating speed of motor adjustment by speed adjusting plate and the cooperation of speed governing knob, and motor stops automatically when reaching the appointment rotating speed, realizes automation mechanized operation.
The present invention is only by changing the parameter of member in the crank and rocker mechanism, can satisfy the requirement that the mechanical supercharger shaft coupling of other windup-degree requirements is tested together, has good versatility.
Description of drawings
Make briefly bright to each accompanying drawing of this instructions expressed content and the mark among the figure below:
Fig. 1 is the one-piece construction schematic top plan view of shaft coupling fatigue experimental device of the present invention;
Fig. 2 is the sectional structure synoptic diagram of the integrally-built A-A face of the described test unit of Fig. 1;
Fig. 3 is the integrally-built axonometric drawing of the described test unit of Fig. 1;
The shaft side figure of the position of Fig. 4 crank and rocker mechanism of the present invention;
Arrangement of parts synoptic diagram on Fig. 5 crank axle of the present invention;
Arrangement of parts synoptic diagram on Fig. 6 rocker shaft I of the present invention and the rocker shaft II;
Arrangement of parts axle on Fig. 7 driven shaft I of the present invention and the driven shaft II is surveyed synoptic diagram;
Be labeled as among the figure: 1, worktable; 2, gauge tap; 3, speed governing knob; 4, rotating speed display; 5, electrical machine belt pulley; 6, belt; 7, crank belt wheel; 8, crank axle; 9, crank bearing; 10, rocker shaft I; 11, driven shaft I; 12, guide rail; 13, sliding support; 14, gear I; 15, front hub; 16, torsionspring; 17, pressure plates I; 18, rear-wheel hub; 19, hold-down support; 20, driven shaft II; 21, side guard plate; 22, rocking bar I; 23, rocker shaft II; 24, pin; 25, nut; 26, connecting rod I; 27, crank I; 28, crank pressing plate; 29, oil sealing pressing plate; 30, photoelectric sensor; 31, motor; 32, oil sealing bearing; 33, bearing I; 34, back of the body cap; 35, protective cover; 36, clip; 37, oil sealing I; 38, needle bearing; 39, lining; 40, rocking bar II; 41, clamp the hole; 42, crank II; 43, gear II; 44, bearing I I; 45, slave unit; 46, gear III; 47, gear IV; 48, connecting rod II; 49, oil sealing II; 50, pressure plates II; 51, framed structure; 52, roller; 53, mounting hole; 54, handle angle.
Embodiment
Contrast accompanying drawing below, by description, the effect of the mutual alignment between the shape of the specific embodiment of the present invention such as related each member, structure, the each several part and annexation, each several part and principle of work etc. are described in further detail embodiment:
Shown in accompanying drawing 1-7, the present invention is a kind of mechanical supercharger shaft coupling fatigue experimental device, described fatigue experimental device comprises motor 31, the crank axle 8 that is driven by motor 31, rocker shaft I 10, rocker shaft II23, described crank axle 8 is driven by crank belt wheel 7, be respectively arranged with on rocker shaft I 10 and the rocker shaft II23 and be rocking bar I 22 and the rocking bar II40 that angle is arranged, described rocker shaft I 10 is connected with rocking bar II40 with rocking bar I 22 respectively with rocker shaft II23, described crank axle 8 is installed on the worktable 1 by crank bearing 9, described rocker shaft I 10 and rocker shaft II23 are installed on the worktable 1 by hold-down support 19 respectively, rocker shaft I 10, front hub 15 and rear-wheel hub 18 are set respectively on the rocker shaft II23.
Described motor 31 and hold-down support 19 are installed in the mounting hole 53 on the worktable 1, described sliding support 13 is inlaid on the worktable 1 by guide rail 12 activities, crank I 27 and crank II42 are set on the crank axle 8, crank axle 8 is connected with rocking bar II40 with rocking bar I 22 with crank II42 by crank I 27 respectively, the position that described rocker shaft I 10, rocker shaft II23 go up near front hub 15 and rear-wheel hub 18 also is respectively arranged with gear I 14 and gear II43, respectively is provided with one on front hub 15 and the rear-wheel hub 18 and clamps hole 41.
Described crank axle 8 is installed on the crank bearing 9 by bearing I I44, described rocking bar I 22 and rocking bar II40 are provided with and are the structure that 45-270 degree angle is arranged, crank belt wheel 7 both sides also are provided with the clip 36 that prevents crank belt wheel 7 axial floats, and described crank belt wheel 7 is connected with the electrical machine belt pulley 5 of motor 31 by belt 6.
Described shaft coupling fatigue experimental device also comprises slave unit 45, described slave unit 45 comprises driven shaft I 11, driven shaft II20, bearing I 33, gear III46, gear IV47, gear III46 on the described slave unit 45, gear IV47 meshes with gear I 14 and gear II43 respectively, described rocker shaft I 10 and driven shaft I 11 are fitted on the sliding support 13 by two pressure plates I 17, and described rocker shaft II23 and driven shaft II20 are positioned on the hold-down support 19 by two pressure plates II 50.
Described fatigue experimental device also comprises the gauge tap 2 that the control test unit opens and closes, regulate the speed governing knob 3 of test unit rotating speed, photoelectric sensor 30 by infrared detection crank axle rotating speed, rotating speed display 4, described photoelectric sensor 30 is installed in crank belt wheel 7 top positions, gauge tap 2, speed governing knob 3, rotating speed display 4, photoelectric sensor 30 is arranged on the worktable 1.
Described slave unit 45 is fixedly mounted on the worktable 1 by hold-down support 19, side guard plate 21 is set around the worktable 1, the protective cover 35 that covers in fatigue experimental device is set on the fatigue experimental device, and described side guard plate 21 and oil sealing bearing 32, worktable constitute sealed space between 1 surface.
Be set to dovetail groove and rail engaging structure between described sliding support 13 and the guide rail 12, sliding support 13 is set to the structure that can be free to slide along the guide rail 12 that dovetail groove slides.
Described crank I 27 is connected by key with crank II42 and carries on the back cap 34 and is axially fixed in crank axle 8 two ends, is connected by key between described crank belt wheel 7 and the crank axle 8.
Described crank belt wheel 7 both sides are provided with an oil sealing I 37 and oil sealing II49 respectively, described crank I 27 and connecting rod I 26, pass through pin 24 between crank II42 and the connecting rod II48 respectively, needle bearing 38 and nut 25 connect, described bearing I I44 is provided with two, lay respectively between oil sealing I 37 and the crank I 27, between oil sealing II49 and the crank II42, be set to the structure of interference fit between described bearing I I44 and the crank axle 8.
The invention still further relates to a kind of test method of mechanical supercharger shaft coupling fatigue experimental device, the test procedure of described test method comprises:
When a) described mechanical supercharger shaft coupling fatigue experimental device begins to test, earlier sliding support 13 is shifted onto on one side along guide rail 12 directions, two handle angles 54 with torsionspring 16 are placed on clamping in the hole 41 on front hub 15 and the rear-wheel hub 18 respectively then, again with the fixing sliding support 13 of pin.
B) open gauge tap 2, motor 31 drives crank I 27 and crank II42 rotates, and crank I 27 and crank II42 drive rocking bar I 22 by connecting rod I 26 and connecting rod II48 and rocking bar II40 does reciprocally swinging.
C) described rocking bar I 22 and rocking bar II40 drive rocker shaft I 10 and rocker shaft II23 do reciprocally swinging, thereby realize that rocker shaft I 10 and rocker shaft II23 realize reciprocal turn-back, and be described
Gear I 14 and gear II43 are respectively by gear III46, and gear IV47 drives driven shaft I 11 and driven shaft II20 does reciprocal turn-back swing.
Crank axle 8 drives rocker shaft I 10 by crank and rocker mechanism and rocker shaft II23 does reciprocally swinging, and rocker shaft I 10 and rocker shaft II23 drive driven shaft I 11 by gear transmission and driven shaft II20 does reciprocally swinging.Because the crank and rocker mechanism direction of motion of two groups of symmetries is opposite, so the swaying direction of rocker shaft I 10 and rocker shaft II23 is opposite.Gear I 14 and gear II43 and gear III46, gear IV47 transmit synchronously, the then also opposite and pivot angle stack of the swaying direction of driven shaft I 11, driven shaft II20.So form big windup-degree between front hub 15 and the rear-wheel hub 18, finish reversing of the needed big corner of mechanical supercharger shaft coupling torture test.
Fatigue experimental device of the present invention, structure such as Fig. 1, Fig. 2 and shown in Figure 3 are equipped with motor 31, oil sealing bearing 32, crank bearing 9, guide rail 12 and hold-down support 19 on the worktable 1.Wherein, electrical machine belt pulley 5 is installed on the motor output shaft; Crank axle 8 is installed on the crank bearing 9 by bearing I I44; Crank belt wheel 7 is installed in the middle of the crank axle 8, and crank belt wheel 7 two ends stop its axial float with clip 36; Transmit power by belt 6 between electrical machine belt pulley 5 and the crank belt wheel 7; Crank axle 8 two ends are installed crank I 27 and crank II42 respectively, crank I 27 and crank II42 link with connecting rod I 26 and connecting rod II48 respectively, connecting rod I 26 and connecting rod II48 and rocking bar I 22 and distant bar II40 link, and form crank and rocker mechanism between crank I 27 and crank II42, connecting rod I 26 and connecting rod II48, rocking bar I 22 and distant bar II40 and the worktable 1; Rocking bar I 22 and distant bar II40 are contained in the end of rocker shaft I 10 and rocker shaft II23 respectively.
Gear I 14 and gear II43 are housed respectively in the middle of rocker shaft I 10 and the rocker shaft II23, drive driven shaft I 11 and driven shaft II20 running by gear transmission.The other end of rocker shaft I 10 and rocker shaft II23 interference fit and front hub 15 and rear-wheel hub 18 respectively links.The handle angle, two ends 54 of torsionspring 16 lays respectively at clamping in the hole 41 in front hub 15 and rear-wheel hub 18 correspondences.
Motor 31 provides power source for this test unit, drive the unidirectional circular motion that crank I 27 in the crank and rocker mechanism and crank II42 do 360 ° by the belt wheel kinematic train again, utilize the crank and rocker mechanism motion principle, same one-period, two half a couplers that cooperatively interact are done the opposite rotation of direction respectively under the drive of rocker shaft I 10 and rocker shaft II23.Gear transmission ratio of the present invention is 1: 1, so driven shaft I11 and driven shaft II20 and rocker shaft I 10 and rocker shaft II23 do the reciprocal rotation of equal angular.As shown in Figure 4, the two set of bell cranks endplay devices that are symmetrically distributed are because travel direction is opposite, so form big corner between rocker shaft I 10 and rocker shaft II23 and driven shaft I 11 and the driven shaft II20, this angle is exactly the needed angle of mechanical supercharger shaft coupling torture test.
As Fig. 1, Fig. 2 and shown in Figure 3, worktable 1 is fixed on the framed structure 51 of welding.Can adorn roller 52 on four legs of the framed structure 51 of welding, convenient moving.
Crank bearing 9, guide rail 12, hold-down support 19, oil sealing bearing 32 usefulness straight pins location, bolt are connected on the worktable 1.Crank bearing 9, sliding support 13 and hold-down support 19 all are designed to the structure of falling the T-shape.The structure that sliding support 13 and guide rail 12 adopt dovetail groove to cooperate with guide rail, sliding support 13 can slide along guide rail 12.Crank bearing 9, sliding support 13, hold-down support 19, oil sealing bearing 32 all design a pair of respectively, and symmetrical parallel is arranged.
In addition, gauge tap 2, speed governing knob 3, photoelectric sensor 30 and rotating speed display 4 also are installed on the worktable 1.Side guard plate 21 is gone up in welding around the worktable 1, and oil sealing pressing plate 29 usefulness bolts are pressed on above the oil sealing bearing 32, and oil sealing I 37 and oil sealing II49 are separately fixed between two oil sealing bearings 32 and the oil sealing pressing plate 29.Side guard plate 21, oil sealing bearing 32 and worktable 1 form enclosure space and are used for storing lubricating cooling oil.Cover after the protective cover 35, can prevent that the fluid in the operation process from splashing.
Fig. 5 shows the distribution of each part on the crank axle 8.Crank I 27 and crank II42 are axially fixed in crank axle 8 two ends by key connecting and back of the body cap 34.Cooperate connection by key between crank belt wheel 7 and the crank axle 8, the axial float of clip 36 restriction crank belt wheels 7.The both sides of crank belt wheel 7 are oil sealing I 37 and oil sealing II49.Connect by passing through pin 24, needle bearing 38 and nut 25 separately between crank I 27 and crank II42, connecting rod I 26 and the connecting rod II48.Bearing I I44 plays a supportive role with crank axle 8 interference fit joint and inside being placed on bearing seat between oil sealing I 37 and crank I 27.
Arrangement of parts synoptic diagram on Fig. 6 rocker shaft I of the present invention and the rocker shaft II;
Rocking bar I 22 and rocking bar II40 by key connecting, and limit the axial float of rocking bar I 22 and rocking bar II40 respectively and between rocker shaft I 10, the rocker shaft II23 with clip 36.Gear I 14 and gear II43 adopt interference fit to be connected on rocker shaft I 10, the rocker shaft II23 respectively.Front hub 15 and rear-wheel hub 18 adopt interference fit to connect with rocker shaft I 10, rocker shaft II23 respectively.Connect by pin 24, needle bearing 38 and nut 25 respectively between rocking bar I 22, rocking bar II40, connecting rod I 26, the connecting rod II48.Rocker shaft I 10, rocker shaft II23 are supported on above the worktable 1 with two bearing I 33 respectively.
In addition, described slave unit 45 can be provided with many groups, the distribution of part is substantially all the same on driven shaft I11, the driven shaft II20 of the slave units 45 of many groups and rocker shaft I 10, the rocker shaft II23, unique different be not have rocking bar I 22, rocking bar II40 on driven shaft I 11, the driven shaft II20.
As shown in Figure 7, the shaft coupling assembly is that interference fit by front hub 15 and rear-wheel hub 16 and axle is fitted on the test unit and tests.The structure of shaft coupling and torsionspring 16 is the front hub 15 of shaft coupling assembly and has one above the rear-wheel hub 16 respectively and clamp hole 41 that respectively there is a handle angle 54 at torsionspring 16 two ends, and two handle angles 54 of torsionspring are placed on two respectively and clamp in the hole 41.
On the testing equipment of described test method, photoelectric sensor 30 is installed in crank belt wheel 7 tops, when crank axle 8 rotates, rotating speed by the infrared detection crank axle, the work number of times of mechanical supercharger shaft coupling is the rotating speed of crank axle 8, can obtain the working cycle number of times of mechanical supercharger shaft coupling like this.Speed governing knob 3 is finished the rotating speed adjustment of motor 31, and rotating speed is set, and stops automatically when reaching the appointment rotating speed, realizes unmanned operation.Gauge tap 2 is used for the start and stop of equipment.
During test, when the needs raising work frequency, only need rotation speed governing knob 3, can realize the rotating speed control of motor 31, thus the variation of the work of the realization frequency; When needs are changed the mechanical supercharger shaft coupling of different windup-degrees, only need to adjust the parameter of crank and rocker mechanism, promptly can realize different windup-degree requirements.
For the moment of torsion with the mechanical supercharger input shaft passes to main drive shaft by shaft coupling smooth-goingly, the forward and reverse torsion angle of shaft coupling is all bigger, generally will surpass 180 degree.Based on the requirement that the big windup-degree of mechanical supercharger shaft coupling is tested, the present invention realizes that by the pivot angle addition principle of two heterodromous crank and rocker mechanisms general mechanism is difficult to the big windup-degree torture test that realizes.
The present invention is provided with a set of bell cranks endplay device respectively at the shaft coupling two ends, follow belt wheel as the crank of driving link and do the rotation of constant speed complete cycle, rocking bar as driven member is made the speed change reciprocally swinging in the certain angle scope, crank and rocker mechanism can be converted to the gyration of driving link (crank) complete cycle the reciprocally swinging of driven member (rocking bar).The reciprocal pivot angle stack of the rocking bar of two set of bell cranks endplay devices is exactly that the mechanical supercharger shaft coupling carries out fatigue durability and tests needed big windup-degree.Only need to adjust the parameter of member in the crank and rocker mechanism, the size that just can change the rocking bar pivot angle is to satisfy the forward and reverse different torsion angle tests of shaft coupling.Because crank and rocker mechanism runs up, its hinge place can wear and tear more serious, so add needle bearing 38 at two groups of connecting rods and 24 of pins separately, sliding friction between connecting rod and the pin 24 is become rolling friction, thereby reduce friction loss, improve the serviceable life and the mechanical efficiency of connecting rod and pin.
In order to improve the efficient of fatigue durability test, the worktable of this patent design has adopted many to gear, can carry out the test of many group shaft couplings simultaneously, its many ratio of gear to gear set employing 1: 1 (synchronously) have guaranteed that synchronous constant speed of shaft coupling of all participation tests are rotated.
To produce a large amount of heat and gears self and need lubricate in order to solve in the friction that runs up of parts such as process of the test middle gear, so utilize side guard plate 21, oil sealing bearing 32, oil sealing and worktable 1 to form seal cavity, hold the lubricating oil that did not have gear 1/4th depth of profiles, to reach cooling and lubricated double action.And, can prevent splashing of lubricating oil as Fig. 3 protective cover 35 on face shield on the worktable.
In the process of the test of mechanical supercharger shaft coupling, need to change mechanical supercharger shaft coupling or its torsionspring, dovetail groove guide rail slide construction has been adopted in this design.After the shutdown sliding support 13 being slided along the dovetail groove guide rail, front hub assembly and rear drum assembly will separate when pushing open, can take out the torsionspring in the spring chamber, realize the rapid and reliable replacing of torsionspring.
In conjunction with the accompanying drawings the present invention has been carried out exemplary description above; obviously the concrete realization of the present invention is not subjected to the restriction of aforesaid way; as long as the various improvement of having adopted method design of the present invention and technical scheme to carry out; or design of the present invention and technical scheme are directly applied to other occasions without improving, all in protection scope of the present invention.
Claims (10)
1. mechanical supercharger shaft coupling fatigue experimental device, it is characterized in that: described fatigue experimental device comprises motor (31), by the crank axle (8) of motor (31) driving, rocker shaft I (10), rocker shaft II (23), described crank axle (8) is driven by crank belt wheel (7), be respectively arranged with on rocker shaft I (10) and the rocker shaft II (23) and be rocking bar I (22) and the rocking bar II (40) that angle is arranged, described rocker shaft I (10) is connected with rocking bar II (40) with rocking bar I (22) respectively with rocker shaft II (23), described crank axle (8) is installed on the worktable (1) by crank bearing (9), described rocker shaft I (10) and rocker shaft II (23) are installed on the worktable (1) by hold-down support (19) respectively, rocker shaft I (10), front hub (15) and rear-wheel hub (18) are set respectively on the rocker shaft II (23).
2. mechanical supercharger shaft coupling fatigue experimental device according to claim 1, it is characterized in that: described motor (31) and hold-down support (19) are installed in the mounting hole (53) on the worktable (1), described sliding support (13) is inlaid on the worktable (1) by guide rail (12) activity, crank I (27) and crank II (42) are set on the crank axle (8), crank axle (8) is connected with rocking bar II (40) with rocking bar I (22) respectively with crank II (42) by crank I (27), rocker shaft I (10), the position that rocker shaft II (23) goes up near front hub (15) and rear-wheel hub (18) also is respectively arranged with gear I (14) and gear II (43), respectively is provided with one on front hub (15) and the rear-wheel hub (18) and clamps hole (41).
3. mechanical supercharger shaft coupling fatigue experimental device according to claim 1 and 2, it is characterized in that: described crank axle (8) is installed on the crank bearing (9) by bearing I I (44), described rocking bar I (22) and rocking bar II (40) are provided with and are the structure that 45-270 degree angle is arranged, crank belt wheel (7) both sides also are provided with the clip (36) that prevents crank belt wheel (7) axial float, and crank belt wheel (7) is connected with the electrical machine belt pulley (5) of motor (31) one ends by belt (6).
4. mechanical supercharger shaft coupling fatigue experimental device according to claim 3, it is characterized in that: described shaft coupling fatigue experimental device also comprises slave unit (45), described slave unit (45) comprises driven shaft I (11), driven shaft II (20), bearing I (33), gear III (46), gear IV (47), gear III (46) on the described slave unit (45), gear IV (47) meshes with gear I (14) and gear II (43) respectively, described rocker shaft I (10) and driven shaft I (11) are fitted on the sliding support (13) by two pressure plates I (17), and described rocker shaft II (23) and driven shaft II (20) are positioned on the hold-down support (19) by two pressure plates II (50).
5. mechanical supercharger shaft coupling fatigue experimental device according to claim 4, it is characterized in that: described fatigue experimental device also comprises the gauge tap (2) that the control test unit opens and closes, regulate the speed governing knob (3) of test unit rotating speed, photoelectric sensor (30) by infrared detection crank axle rotating speed, rotating speed display (4), described photoelectric sensor (30) is installed in crank belt wheel (7) top position, described gauge tap (2), speed governing knob (3), rotating speed display (4), photoelectric sensor (30) is arranged on the worktable (1).
6. mechanical supercharger shaft coupling fatigue experimental device according to claim 5, it is characterized in that: described slave unit (45) is fixedly mounted on the worktable (1) by hold-down support (19) and sliding support (13), side guard plate (21) is set around the described worktable (1), the protective cover (35) that covers in fatigue experimental device is set on the fatigue experimental device, and described side guard plate (21) and oil sealing bearing (32), worktable (1) constitute sealed space between the surface.
7. mechanical supercharger shaft coupling fatigue experimental device according to claim 6, it is characterized in that: be set to the structure that dovetail groove cooperates with guide rail between described sliding support (13) and the guide rail (12), sliding support (13) is set to the structure that can be free to slide along the guide rail (12) that dovetail groove slides.
8. mechanical supercharger shaft coupling fatigue experimental device according to claim 7, it is characterized in that: described crank I (27) is connected by key with crank II (42) and carries on the back cap (34) and is axially fixed in crank axle (8) two ends, is connected by key between described crank belt wheel (7) and the crank axle (8).
9. mechanical supercharger shaft coupling fatigue experimental device according to claim 8, it is characterized in that: described crank belt wheel (7) both sides are provided with an oil sealing I (37) and oil sealing II (49) respectively, described crank I (27) and connecting rod I (26), pass through pin (24) between crank II (42) and the connecting rod II (48) respectively, needle bearing (38) and nut (25) connect, described bearing I I (44) is provided with two, lay respectively between oil sealing I (37) and the crank I (27), between oil sealing II (49) and the crank II (42), be set to the structure of interference fit between described bearing I I (44) and the crank axle (8).
10. the test method of a mechanical supercharger shaft coupling fatigue experimental device, it is characterized in that: the test procedure of described test method comprises:
When a) described mechanical supercharger shaft coupling fatigue experimental device begins to test, earlier sliding support (13) is shifted onto on one side along guide rail (12) direction, two handle angles (54) with torsionspring (16) are placed on clamping in the hole (41) on front hub (15) and the rear-wheel hub (18) respectively then, again with the fixing sliding support (13) of pin.
B) open gauge tap (2), motor (31) drives crank I (27) and crank II (42) rotates, and crank I (27) and crank II (42) drive rocking bar I (22) by connecting rod I (26) and connecting rod II (48) and rocking bar II (40) does reciprocally swinging.
C) described rocking bar I (22) and rocking bar II (40) drive rocker shaft I (10) and rocker shaft II (23) do reciprocally swinging, thereby make rocker shaft I (10) and rocker shaft II (23) realize reciprocal turn-back, described gear I (14) and gear II (43) are respectively by gear III (46), and gear IV (47) drives driven shaft I (11) and driven shaft II (20) does reciprocal turn-back swing.
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| CN 201010586404 CN102072815B (en) | 2010-12-14 | 2010-12-14 | Mechanical supercharger coupling fatigue test device and test method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010586404 CN102072815B (en) | 2010-12-14 | 2010-12-14 | Mechanical supercharger coupling fatigue test device and test method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110146283A (en) * | 2019-06-19 | 2019-08-20 | 康为同创集团有限公司 | A kind of shaft coupling experimental rig and shaft coupling pilot system |
| CN110879181A (en) * | 2019-11-15 | 2020-03-13 | 宁波奥克斯电气股份有限公司 | Testing device and testing method for Booth rubber |
| CN118067386B (en) * | 2024-04-18 | 2024-06-28 | 辉县市福达智能装备有限公司 | Rigidity testing device for coupler |
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| JPH03503675A (en) * | 1987-04-18 | 1991-08-15 | インドゥストリアンラーゲン‐ベトリープスゲゼルシャフト ミット ベシュレンクター ハフトゥンク | Testing machine for durability tests, functional tests, and characteristic curve calculations of torsional vibration dampers and twin flywheels. |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110146283A (en) * | 2019-06-19 | 2019-08-20 | 康为同创集团有限公司 | A kind of shaft coupling experimental rig and shaft coupling pilot system |
| CN110879181A (en) * | 2019-11-15 | 2020-03-13 | 宁波奥克斯电气股份有限公司 | Testing device and testing method for Booth rubber |
| CN118067386B (en) * | 2024-04-18 | 2024-06-28 | 辉县市福达智能装备有限公司 | Rigidity testing device for coupler |
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|---|---|
| CN102072815B (en) | 2012-07-25 |
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Address after: 241009 Anhui province Wuhu Jiuzi Jiujiang City Jiujiang District Economic Development Zone Leap Road on the north side of East Road No. 18 Patentee after: JAPHL POWERTRAIN SYSTEMS Co.,Ltd. Address before: Fengming Lake Road Economic and Technological Development Zone of Anhui Province, Wuhu Tianmen Industrial Park, 241009 No. 6 factory Patentee before: WUHU JAPHL POWERTRAIN SYSTEMS Co.,Ltd. |
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