CN205079939U - Frame twists reverse fatigue test device - Google Patents
Frame twists reverse fatigue test device Download PDFInfo
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- CN205079939U CN205079939U CN201520877076.2U CN201520877076U CN205079939U CN 205079939 U CN205079939 U CN 205079939U CN 201520877076 U CN201520877076 U CN 201520877076U CN 205079939 U CN205079939 U CN 205079939U
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Abstract
The utility model provides a frame twists reverse fatigue test device, package rubbing board spring analogue means, front end T type loading device and rear end restraint device, leaf spring analogue means connects in the front end of frame, front end T type loading device connect in leaf spring analogue means, front end T type loading device and leaf spring analogue means form parallelogram atress structure at the frame front end, and pass through the longitudinal degress of feedom of front end T type loading device and leaf spring analogue means restraint frame, the rear end restraint device is connected in the rear end of frame and in frame the back -end form a rectangle atress structure, just passes through the horizontal degree of freedom of rear end restraint device restraint frame. The utility model overcomes the frame experiment easily produces lateral displacement among the prior art, can't realize the single problem of reversing the operating mode, resulting in torsion performance test mistake, has improved the frame and has reversed the fatigue test precision, has shortened whole car reliability examination test duration, and the cost is reduced has promoted that the development of full platform frame is used.
Description
Technical field
The utility model relates to testing fatigue field, is specifically related to a kind of chassis torsion fatigue experimental device, especially a kind of guarantee the complete catenary motion of vehicle frame loading end under realize the chassis torsion fatigue experimental device of single twisting conditions.
Background technology
Because travelling truck road conditions are more severe, rough and uneven in surface or distortion road surface makes vehicle frame often twist phenomenon, vehicle frame is as important load bearing component, to vehicle ages and security most important, for guaranteeing chassis torsion rigidity, torsional fatigue meets vehicle performance requirement, needs to carry out verification experimental verification to the twisting property of vehicle frame in vehicle R&D process.Current vehicle frame exploitation is mainly carried out local improvement to matured product or carries out reverse scanning to mark post vehicle, then vehicle frame performance is examined by automobile reliability, cause the construction cycle of vehicle frame longer like this, cost is higher, also limit the exploitation of full platform vehicle frame simultaneously.Present stage, car load factory brought into use stand to carry out examination in early stage to chassis torsion, the T-shaped frame of main use loads at propons position, because T-shaped frame rotation center is positioned at frame downward, vehicle frame can be caused to produce transversal displacement, vehicle frame is made not to be in single twisting conditions, this can cause the mistake of chassis torsion performance test, causes difficulty to CAE Simulation and test to mark work simultaneously.Therefore, under exploitation one can guarantee that vehicle frame realizes single twisting conditions, accurately the test unit of examination chassis torsion performance is particularly important.
Utility model content
The utility model provide a kind of guarantee the operating mode of the complete catenary motion of vehicle frame loading end under, realize the chassis torsion fatigue experimental device of single twisting conditions, whole by leaf spring analogue means, the T-shaped charger in front end and rear end restraint device composition, false front plate spring is connected with the leaf spring mounting points of vehicle frame with planar bracket on leaf spring after vacation, lower plane support is connected with front swing arm and rear arm upper end respectively, on false front axle, plane two stands is connected with front swing arm lower end, be connected with intermediate support by rotation axis in the middle part of false front axle lower plane, and there is driving hanger one end, for connecting actuator, rear arm undersetting upper end is connected with rear arm.T-shaped charger is formed, for the symmetrical loading of vehicle frame by intermediate support, false front axle, rotation axis, driving hanger; Vehicle frame front end adopts parallelogram sturcutre to connect, for eliminate completely false front axle rotate moving axis rotate time, front swing arm lower bearing pin rotate moving axis rotate transversal displacement component, changed by vehicle frame both sides front swing arm vertical deviation simultaneously, drive front swing arm upper pin to produce vertical deviation poor, and then drive vehicle frame to twist; Vehicle frame rear end use rear arm connect false after leaf spring and rear arm undersetting, forming rocker structure, to move up and down in process the change of the horizontal range of leaf spring after false front plate spring and vacation for realizing vehicle frame front end; Can guarantee that vehicle frame is overall without transversal displacement by vehicle frame front end parallelogram sturcutre and rear end rocker structure, finally realize the single twisting conditions of vehicle frame.Chassis torsion fatigue experimental device described in the utility model overcomes the test of vehicle frame in prior art and easily produces transversal displacement, cannot realize single twisting conditions and then cause the problem of twisting property test errors, improve chassis torsion torture test precision, thus shorten the automobile reliability certification test cycle, effectively reduce cost, facilitate the Application and Development of full platform vehicle frame simultaneously, there is wide popularizing application prospect.
The utility model solves the technical scheme that its technical matters adopts:
A kind of chassis torsion fatigue experimental device, comprise leaf spring analogue means, the T-shaped charger in front end and rear end restraint device, described leaf spring analogue means is connected to the front end of vehicle frame, the T-shaped charger in described front end is connected to leaf spring analogue means, the T-shaped charger in described front end and leaf spring analogue means form parallelogram force structure in vehicle frame front end, and retrain the longitudinal degress of feedom of vehicle frame by the T-shaped charger in described front end and leaf spring analogue means; Described rear end restraint device is connected to the rear end of vehicle frame and forms rectangle force structure in vehicle frame rear end, and retrains the horizontal degree of freedom of vehicle frame by described rear end restraint device.
Further according to chassis torsion fatigue experimental device described in the utility model, wherein said leaf spring analogue means comprises false front plate spring 8 and front swing arm 6, the upper surface of described false front plate spring 8 is provided with connection bracket, and the leaf spring mounting points of vehicle frame front end is connected to by upper connection bracket, the lower surface of described false front plate spring 8 is provided with lower connection bracket, and the upper end of described front swing arm 6 is rotationally connected with the lower connection bracket of false front plate spring 8 by front swing arm upper pin 7.
Further according to chassis torsion fatigue experimental device described in the utility model, the T-shaped charger in wherein said front end comprises intermediate support 1, false front axle 3, rotation axis 2 and driving hanger 4, the upper surface of described false front axle 3 is provided with connection bracket, the lower end of described front swing arm 6 is rotationally connected with the upper connection bracket of false front axle 3 by front swing arm lower bearing pin 5, the lower surface of described false front axle 3 is provided with lower connection bracket, described intermediate support 1 is rotationally connected with the lower connection bracket of described false front axle 3 by rotation axis 2, one end of described false front axle 3 is provided with described driving hanger 4.
Further according to chassis torsion fatigue experimental device described in the utility model, wherein said rear end restraint device comprises rear arm undersetting 10, leaf spring 14 after rear arm 12 and vacation, after described vacation, the upper surface of leaf spring 14 is provided with connection bracket, and the leaf spring mounting points of vehicle frame rear end is connected to by upper connection bracket, after described vacation, the lower surface of leaf spring 14 is provided with lower connection bracket, the upper end of described rear arm 12 is rotationally connected with the lower connection bracket of false rear leaf spring 14 by rear arm upper pin 13, the lower end of described rear arm 12 is rotationally connected with rear arm undersetting 10 by rear arm lower bearing pin 11.
Further according to chassis torsion fatigue experimental device described in the utility model, extending longitudinally along vehicle frame of leaf spring 14 after wherein said false front plate spring 8 and vacation, described false front axle 3 is along the horizontal expansion of vehicle frame, the longitudinal direction being axially parallel to vehicle frame of described front swing arm lower bearing pin, front swing arm upper pin and rotation axis, the transverse direction being axially parallel to vehicle frame of described rear arm lower bearing pin and rear arm upper pin.
Further according to chassis torsion fatigue experimental device described in the utility model, wherein said leaf spring analogue means comprises two false front plate springs 8 and two front swing arms 6, the leaf spring mounting points being longitudinally connected to two side, vehicle frame front end along vehicle frame that two false front plate springs 8 are parallel to each other, the lower connection bracket of each false front plate spring 8 is rotatably connected to a front swing arm 6, forms parallelogram force structure by described false front plate spring 8, front swing arm 6, front swing arm lower bearing pin 5, front swing arm upper pin 7 and false front axle 3.
Further according to chassis torsion fatigue experimental device described in the utility model, wherein said rear end restraint device comprises two rear arm undersettings 10, leaf spring 14 after two rear arms 12 and two vacations, the leaf spring mounting points being longitudinally connected to two side, vehicle frame rear end along vehicle frame that after two vacations, leaf spring 14 is parallel to each other, after each vacation leaf spring 14 lower connection bracket on be rotatably connected to a rear arm 12, the lower end of each rear arm 12 is rotatably connected to a rear arm undersetting 10, by described rear arm undersetting 10, rear arm lower bearing pin 11, rear arm 12, after rear arm upper pin 13 and vacation, leaf spring 14 forms rectangle force structure.
Further according to chassis torsion fatigue experimental device described in the utility model, the two ends of wherein said false front plate spring 8 upper surface are provided with connection bracket, the middle part of described false front plate spring 8 lower surface is provided with lower connection bracket, the position that the upper surface of described false front axle 3 corresponds to described front swing arm 6 is provided with connection bracket, lower connection bracket is provided with in the middle part of the lower surface of described false front axle 3, after described vacation, the two ends of leaf spring 14 upper surface are provided with connection bracket, and after described vacation, the middle part of leaf spring 14 lower surface is provided with lower connection bracket.
Further according to chassis torsion fatigue experimental device described in the utility model, the lower connection bracket of wherein said false front plate spring 8 and the upper connection bracket of described false front axle 3 all have U-shaped structure, U-shaped opening direction along vehicle frame laterally, U-shaped two side offers pin shaft hole, and the two ends of described front swing arm 6 to be inserted respectively in U-shaped opening and are installed in described U-shaped structure by bearing pin through the axis hole of described pin shaft hole and front swing arm end; After described vacation, the lower connection bracket of leaf spring 14 and described rear arm undersetting 10 are equipped with U-shaped structure, U-shaped opening direction along vehicle frame longitudinally, U-shaped two side offers pin shaft hole, and the two ends of described rear arm 12 to be inserted respectively in U-shaped opening and are installed in described U-shaped structure by bearing pin through the axis hole of described pin shaft hole and rear arm end; The lower connection bracket of described false front axle 3 lower surface is a plate, described intermediate support 1 comprises two pieces of spaced back up pads, the front end of described web joint is inserted between two pieces of back up pads, described false front axle 3 through described back up pad and web joint, thus is rotationally connected with on described intermediate support 1 by described rotation axis 2.
Further according to chassis torsion fatigue experimental device described in the utility model, the bottom surface of wherein said intermediate support 1 and rear arm undersetting 10 is fixed on iron floor.
The beneficial effects of the utility model are: by the chassis torsion fatigue experimental device comprising leaf spring analogue means, the T-shaped charger in front end and rear end restraint device of a kind of brand new of innovative design, innovation realization is the accurate simulation travelling truck torsion phenomenon that vehicle frame occurs when rough and uneven in surface or distortion road surface on indoor stand, initiate the torture test scheme of the single twisting conditions of vehicle frame, thus can exposure vehicle frame defect early, reach the object shortening the test period, reduce R&D costs; Meanwhile, the complete catenary motion of vehicle frame loading end can be guaranteed, realize single twisting conditions, ensure that the accurate of chassis torsion performance test, facilitate CAE to emulate mark, and the Application and Development of full platform vehicle frame can be promoted, there is wide popularizing application prospect.
Accompanying drawing explanation
Accompanying drawing 1 is the perspective view of chassis torsion fatigue experimental device described in the utility model.
Accompanying drawing 2 is A direction view structural representations of chassis torsion fatigue experimental device shown in accompanying drawing 1.
Accompanying drawing 3 is B direction view structural representations of chassis torsion fatigue experimental device shown in accompanying drawing 1.
In figure, the implication of each Reference numeral is as follows:
1-intermediate support, 2-rotation axis, the false front axle of 3-, 4-drives hanger, 5-front swing arm lower bearing pin, 6-front swing arm, 7-front swing arm upper pin, the false front plate spring of 8-, 9-vehicle frame, 10-rear arm undersetting, 11-rear arm lower bearing pin, 12-rear arm, 13-rear arm upper pin, leaf spring after 14-vacation.
Embodiment
Below in conjunction with accompanying drawing, the technical solution of the utility model is described in detail, to enable those skilled in the art's understanding clearly scheme of the present utility model, but does not therefore limit protection domain of the present utility model.
Chassis torsion fatigue experimental device described in the utility model is overall by leaf spring analogue means, the T-shaped charger in front end and rear end restraint device composition, described leaf spring analogue means top is fixedly connected on the leaf spring mounting points of vehicle frame front end, described leaf spring analogue means bottom is connected to the top of the T-shaped charger in front end along the lateral rotation of vehicle frame, ground is fixed in the bottom of the T-shaped charger in described front end, longitudinal direction (vehicle frame longitudinally) degree of freedom of vehicle frame 9 front end can be retrained by the T-shaped charger of described leaf spring analogue means and front end, and realize single vertical twisting conditions, the top of described rear end restraint device is fixedly connected on the leaf spring mounting points of vehicle frame rear end, ground is fixed in the bottom of described rear end restraint device, described rear end restraint device, for retraining transverse direction (vehicle frame laterally) degree of freedom of vehicle frame rear end, can discharge rotational freedom when vehicle frame 9 front end moves up and down simultaneously.
Specifically as shown in Figure 1, described leaf spring analogue means comprises front swing arm lower bearing pin 5, front swing arm 6, front swing arm upper pin 7 and false front plate spring 8, the two-arm that described false front plate spring 8 corresponds to vehicle frame includes two, the upper surface two ends of the false front plate spring 8 of every root are provided with connection bracket, for simulating leaf spring grasswort, and be connected with vehicle frame 9 by upper connection bracket, two false front plate springs 8 are connected to the two-arm of vehicle frame in the direction extending longitudinally of the front end edge vehicle frame of vehicle frame, a lower connection bracket is all fixedly installed in the middle part of the lower surface of each false front plate spring 8, described lower connection bracket preferably has U-shaped structure, U-shaped opening direction is along the transverse direction of vehicle frame, U-shaped two side offers pin shaft hole, described front swing arm 6 corresponds to two false front plate springs 8 and includes two, the lower connection bracket of each false front plate spring 8 is rotatably connected to a front swing arm 6, the upper end of concrete described front swing arm 6 is inserted in the U-shaped opening of the lower connection bracket of false front plate spring 8, and by front swing arm upper pin 7 through being rotationally connected with in the U-shaped opening of lower connection bracket in the axis hole of the pin shaft hole on U-shaped sidewall and front swing arm 6 upper end, described front swing arm 6 rotates around front swing arm upper pin 7, described front swing arm upper pin 7 is extending longitudinally along vehicle frame.The T-shaped charger in described front end comprises intermediate support 1, false front axle 3, rotation axis 2 and driving hanger 4, for carrying out the symmetrical loading of vehicle frame 9, described false front axle 3 is along the horizontally set of vehicle frame, and plane is provided with two upper connection brackets thereon, each upper connection bracket is rotationally connected with corresponding front swing arm 6, the upper connection bracket of concrete described false front axle 3 upper surface has U-shaped structure, U-shaped opening direction is along the transverse direction of vehicle frame, U-shaped two side offers pin shaft hole, the lower end of described front swing arm 6 is inserted in the U-shaped opening of the upper connection bracket of false front axle 3, and by front swing arm lower bearing pin 5 through being rotationally connected with in the U-shaped opening of upper connection bracket in the axis hole of the pin shaft hole on U-shaped sidewall and front swing arm 6 lower end, described front swing arm 6 can rotate around front swing arm lower bearing pin 5, described front swing arm lower bearing pin 5 is extending longitudinally along vehicle frame.Be rotationally connected by rotation axis 2 and intermediate support 1 in the middle part of the lower plane of described false front axle 3, specifically projecting downwards in the middle part of the lower plane of false front axle 3 has web joint, described web joint inserts in the middle of two back up pads of intermediate support 1, and connected by rotation axis 2 with it, described false front axle 3 can rotate between two back up pads of intermediate support 1 around described rotation axis 2, and described rotation axis 2 is arranged along the longitudinal direction of vehicle frame.Lower plane one end of described false front axle 3 is provided with and drives hanger 4, for connecting actuator.The lower surface of described intermediate support 1 is fixed on iron floor.Rear end restraint device comprises leaf spring 14 after rear arm undersetting 10, rear arm lower bearing pin 11, rear arm 12, rear arm upper pin 13 and vacation.The two-arm that after described vacation, leaf spring 14 corresponds to vehicle frame includes two, after every root vacation, the upper surface two ends of leaf spring 14 are provided with connection bracket, for simulating leaf spring grasswort, and be connected with vehicle frame 9 by upper connection bracket, after two vacations, leaf spring 14 is connected to the two-arm of vehicle frame along the direction extending longitudinally of vehicle frame in the rear end of vehicle frame, after each vacation leaf spring 14 lower surface in the middle part of be all fixedly installed a lower connection bracket, described lower connection bracket preferably has U-shaped structure, U-shaped opening direction is along the longitudinal direction of vehicle frame, U-shaped two side offers pin shaft hole, after described rear arm 12 corresponds to two vacations, leaf spring 14 includes two, after each vacation leaf spring 14 lower connection bracket on be rotatably connected to a rear arm 12, the upper end of concrete described rear arm 12 is inserted in the U-shaped opening of the lower connection bracket of false rear leaf spring 14, and by rear arm upper pin 13 through being rotationally connected with in the U-shaped opening of lower connection bracket in the axis hole of the pin shaft hole on U-shaped sidewall and rear arm 12 upper end, described rear arm 12 can rotate around rear arm upper pin 13, the axis of described rear arm upper pin 13 is along vehicle frame horizontally set.Described rear arm undersetting 10 corresponds to two rear arms 12 and includes two, the lower end of each rear arm 12 is rotationally connected with on a rear arm undersetting 10, concrete each rear arm undersetting 10 offers a U-type groove, the opening direction of U-type groove is along the longitudinal direction of vehicle frame, the two side of U-type groove offers pin shaft hole, the lower end of described rear arm 12 is inserted in described U-type groove, and by rear arm lower bearing pin 11 through in the pin shaft hole of U-type groove and the axis hole of rear arm 12, the lower end of rear arm 12 being rotationally connected with on rear arm undersetting 10, the lower surface of described rear arm undersetting 10 is fixed on iron floor.
Below the specific works principle of chassis torsion fatigue experimental device described in the utility model and process are described.
When using chassis torsion fatigue experimental device described in the utility model to carry out the single torsional fatigue test of vehicle frame, first as shown in Figure 1, leaf spring 14 after false front plate spring 8 and vacation is connected to the front and back end of vehicle frame 9 by the upper connection bracket of upper plane, respectively front swing arm 6 is connected with the lower connection bracket in the middle part of leaf spring 14 lower plane after false front plate spring 8 and vacation with the upper end of rear arm 12 with rear arm upper pin 13 by front swing arm upper pin 7, the lower surface of intermediate support 1 is fixed on iron floor, and false front axle 3 is connected to the upper end of intermediate support 1 by rotation axis 2, then according to real vehicle size, determine the front and back of rear arm undersetting 10, upper-lower position is also fixed on iron floor, then by rear arm lower bearing pin 11, rear arm 12 is connected with rear arm undersetting 10, by front swing arm lower bearing pin 5, false front axle 3 is connected with front swing arm 6 again, finally connect actuator at driving hanger 4 place of false front axle 3, the installation of chassis torsion fatigue experimental device.
When testing, first with reference to shown in accompanying drawing 1 and accompanying drawing 3, by rear arm 12, leaf spring 14 after false, rear arm undersetting 10, rear arm lower bearing pin 11, rear arm upper pin 13 surrounds rectangle force structure in (i.e. A direction view) in the horizontal section of vehicle frame 9, after false, leaf spring 14 and rear arm undersetting 10 are in the bight of rectangle, be connected with this axle of rear arm upper pin 13 owing to adopting rear arm lower bearing pin 11, this rectangular configuration can be made only can to rotate around rear arm lower bearing pin 11 (i.e. vehicle frame transverse axis), this structure Main Function is: when vehicle frame 9 front end moves up and down, after false front plate spring 8 and vacation, the horizontal range of leaf spring 14 changes, because rear arm 12 rotates around rear arm lower bearing pin 11, longitudinal direction (vehicle frame longitudinally) degree of freedom of vehicle frame 9 rear end can be discharged, simultaneously by the connection bracket effect of leaf spring 14 after rear arm undersetting 10 and vacation, transverse direction (vehicle frame laterally) degree of freedom of vehicle frame 9 rear end can be retrained, rear arm 12 and leaf spring after vacation 14 times connection brackets use rear arm upper pin 13 to be connected, and can discharge rotational freedom when vehicle frame 9 front end moves up and down, use this pin shaft structure of rear arm lower bearing pin 11, rear arm upper pin 13 to connect, vehicle frame 9 rear end can be retrained around vehicle frame vertical axes.
Shown in accompanying drawing 1 and accompanying drawing 2, false front axle 3, front swing arm 6, false front plate spring 8, front swing arm lower bearing pin 5, front swing arm upper pin 7 (i.e. A direction view) in the transverse section of vehicle frame 9 form parallelogram force structure, Main Function is: by the effect of the upper connection bracket of false front axle 3 and the lower connection bracket of false front plate spring 8, can retrain longitudinal direction (vehicle frame longitudinally) degree of freedom of vehicle frame 9 front end, this pin shaft structure of front swing arm lower bearing pin 5, front swing arm upper pin 7 is used to connect, the rotational freedom of vehicle frame 9 front end around vehicle frame 9 Z-axis can be retrained, because the rear end of vehicle frame 9 horizontal (vehicle frame laterally) degree of freedom retrains, therefore vehicle frame 9 entirety cannot laterally (vehicle frame is horizontal) be moved, (vehicle frame is vertical) to-and-fro movement under driving hanger 4 place of false front axle 3 is applied with by actuator, false front axle 3 moving axis 2 that rotates rotates, front swing arm lower bearing pin 5 moving axis 2 that rotates is driven to rotate, because vehicle frame 9 entirety cannot laterally (vehicle frame is horizontal) be moved, front swing arm upper pin 7 cannot laterally (vehicle frame is horizontal) move, namely parallelogram force structure upper sideline moves without level (vehicle frame transverse section), therefore front swing arm lower bearing pin 5 rotate moving axis 2 rotate transverse direction (vehicle frame) displacement component the distortion by parallelogram force structure will be eliminated completely, front swing arm upper pin 7 cannot be delivered to, and then avoid vehicle frame 9 front end to produce laterally (vehicle frame laterally) displacement, simultaneously because false front axle 3 rotates, front swing arm 6 vertical deviation of vehicle frame 9 both sides changes, and drives front swing arm upper pin 7 to produce vertical deviation difference, and then drives vehicle frame 9 to twist, realize single twisting conditions, complete the experiment on fatigue properties under the single twisting conditions of vehicle frame 9.
The utility model is by being connected false front plate spring with the leaf spring mounting points of vehicle frame with the upper connection bracket of plane on leaf spring after vacation, the lower connection bracket of lower plane is connected with front swing arm and rear arm upper end respectively, on false front axle, plane two stands is connected with front swing arm lower end, be connected with intermediate support by rotation axis in the middle part of false front axle lower plane, and there is driving hanger one end, for connecting actuator, rear arm undersetting upper end is connected with rear arm; Thus make in described fatigue experimental device, form parallelogram force structure to connect in vehicle frame front end, for eliminate completely false front axle rotate moving axis rotate time, front swing arm lower bearing pin rotate moving axis rotate transversal displacement component, changed by vehicle frame both sides front swing arm vertical deviation simultaneously, drive front swing arm upper pin to produce vertical deviation poor, and then drive vehicle frame that vertical single torsion occurs; And vehicle frame rear end use rear arm connect false after leaf spring and rear arm undersetting, forming the stressed rocker structure of rectangle, to move up and down in process the change of the horizontal range of leaf spring after false front plate spring and vacation for realizing vehicle frame front end; Can guarantee that vehicle frame is overall without transversal displacement by vehicle frame front end parallelogram force structure and rear end rectangle rocker structure, finally achieve on the indoor stand accurate simulation travelling truck torsion phenomenon that vehicle frame occurs when rough and uneven in surface or distortion road surface, initiate the torture test scheme of the single twisting conditions of vehicle frame, thus can exposure vehicle frame defect early, reach the object shortening the test period, reduce R&D costs; Ensure that the accurate of chassis torsion performance test simultaneously, facilitate CAE to emulate mark, and the Application and Development of full platform vehicle frame can be promoted, there is wide popularizing application prospect.
Below be only that preferred implementation of the present utility model is described; the technical solution of the utility model is not limited to this; the any known distortion that those skilled in the art do on the basis that major technique of the present utility model is conceived all belongs to the claimed technology category of the utility model, and the concrete protection domain of the utility model is as the criterion with the record of claims.
Claims (10)
1. a chassis torsion fatigue experimental device, it is characterized in that, comprise leaf spring analogue means, the T-shaped charger in front end and rear end restraint device, described leaf spring analogue means is connected to the front end of vehicle frame, the T-shaped charger in described front end is connected to leaf spring analogue means, the T-shaped charger in described front end and leaf spring analogue means form parallelogram force structure in vehicle frame front end, and retrain the longitudinal degress of feedom of vehicle frame by the T-shaped charger in described front end and leaf spring analogue means; Described rear end restraint device is connected to the rear end of vehicle frame and forms rectangle force structure in vehicle frame rear end, and retrains the horizontal degree of freedom of vehicle frame by described rear end restraint device.
2. chassis torsion fatigue experimental device according to claim 1, it is characterized in that, described leaf spring analogue means comprises false front plate spring (8) and front swing arm (6), the upper surface of described false front plate spring (8) is provided with connection bracket, and the leaf spring mounting points of vehicle frame front end is connected to by upper connection bracket, the lower surface of described false front plate spring (8) is provided with lower connection bracket, and the upper end of described front swing arm (6) is rotationally connected with the lower connection bracket of false front plate spring (8) by front swing arm upper pin (7).
3. chassis torsion fatigue experimental device according to claim 2, it is characterized in that, the T-shaped charger in described front end comprises intermediate support (1), false front axle (3), rotation axis (2) and driving hanger (4), the upper surface of described false front axle (3) is provided with connection bracket, the lower end of described front swing arm (6) is rotationally connected with the upper connection bracket of false front axle (3) by front swing arm lower bearing pin (5), the lower surface of described false front axle (3) is provided with lower connection bracket, described intermediate support (1) is rotationally connected with the lower connection bracket of described false front axle (3) by rotation axis (2), one end of described false front axle (3) is provided with described driving hanger (4).
4. chassis torsion fatigue experimental device according to claim 3, it is characterized in that, described rear end restraint device comprises rear arm undersetting (10), leaf spring (14) after rear arm (12) and vacation, after described vacation, the upper surface of leaf spring (14) is provided with connection bracket, and the leaf spring mounting points of vehicle frame rear end is connected to by upper connection bracket, after described vacation, the lower surface of leaf spring (14) is provided with lower connection bracket, the upper end of described rear arm (12) is rotationally connected with the lower connection bracket of false rear leaf spring (14) by rear arm upper pin (13), the lower end of described rear arm (12) is rotationally connected with rear arm undersetting (10) by rear arm lower bearing pin (11).
5. chassis torsion fatigue experimental device according to claim 4, it is characterized in that, extending longitudinally along vehicle frame of leaf spring (14) after described false front plate spring (8) and vacation, described false front axle (3) is along the horizontal expansion of vehicle frame, the longitudinal direction being axially parallel to vehicle frame of described front swing arm lower bearing pin, front swing arm upper pin and rotation axis, the transverse direction being axially parallel to vehicle frame of described rear arm lower bearing pin and rear arm upper pin.
6. chassis torsion fatigue experimental device according to claim 5, it is characterized in that, described leaf spring analogue means comprises two false front plate springs (8) and two front swing arms (6), the leaf spring mounting points being longitudinally connected to two side, vehicle frame front end along vehicle frame that two false front plate springs (8) are parallel to each other, the lower connection bracket of each false front plate spring (8) is rotatably connected to a front swing arm (6), by described false front plate spring (8), front swing arm (6), front swing arm lower bearing pin (5), front swing arm upper pin (7) and false front axle (3) form parallelogram force structure.
7. chassis torsion fatigue experimental device according to claim 5, it is characterized in that, described rear end restraint device comprises two rear arm undersettings (10), leaf spring (14) after two rear arms (12) and two vacations, the leaf spring mounting points being longitudinally connected to two side, vehicle frame rear end along vehicle frame that after two vacations, leaf spring (14) is parallel to each other, after each vacation leaf spring (14) lower connection bracket on be rotatably connected to a rear arm (12), the lower end of each rear arm (12) is rotatably connected to a rear arm undersetting (10), by described rear arm undersetting (10), rear arm lower bearing pin (11), rear arm (12), after rear arm upper pin (13) and vacation, leaf spring (14) forms rectangle force structure.
8. the chassis torsion fatigue experimental device according to any one of claim 4-7, it is characterized in that, the two ends of described false front plate spring (8) upper surface are provided with connection bracket, the middle part of described false front plate spring (8) lower surface is provided with lower connection bracket, the position that the upper surface of described false front axle (3) corresponds to described front swing arm (6) is provided with connection bracket, lower connection bracket is provided with in the middle part of the lower surface of described false front axle (3), after described vacation, the two ends of leaf spring (14) upper surface are provided with connection bracket, after described vacation, the middle part of leaf spring (14) lower surface is provided with lower connection bracket.
9. the chassis torsion fatigue experimental device according to any one of claim 5-7, it is characterized in that, the lower connection bracket of described false front plate spring (8) and the upper connection bracket of described false front axle (3) all have U-shaped structure, U-shaped opening direction along vehicle frame laterally, U-shaped two side offers pin shaft hole, and the two ends of described front swing arm (6) to be inserted respectively in U-shaped opening and are installed in described U-shaped structure by bearing pin through the axis hole of described pin shaft hole and front swing arm end; After described vacation, the lower connection bracket of leaf spring (14) and described rear arm undersetting (10) are equipped with U-shaped structure, U-shaped opening direction along vehicle frame longitudinally, U-shaped two side offers pin shaft hole, and the two ends of described rear arm (12) to be inserted respectively in U-shaped opening and are installed in described U-shaped structure by bearing pin through the axis hole of described pin shaft hole and rear arm end; The lower connection bracket of described false front axle (3) lower surface is a plate, described intermediate support (1) comprises two pieces of spaced back up pads, the front end of described web joint is inserted between two pieces of back up pads, described false front axle (3) through described back up pad and web joint, thus is rotationally connected with on described intermediate support (1) by described rotation axis (2).
10. chassis torsion fatigue experimental device according to claim 9, is characterized in that, the bottom surface of described intermediate support (1) and rear arm undersetting (10) is fixed on iron floor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520877076.2U CN205079939U (en) | 2015-11-05 | 2015-11-05 | Frame twists reverse fatigue test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520877076.2U CN205079939U (en) | 2015-11-05 | 2015-11-05 | Frame twists reverse fatigue test device |
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| CN205079939U true CN205079939U (en) | 2016-03-09 |
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| CN201520877076.2U Active CN205079939U (en) | 2015-11-05 | 2015-11-05 | Frame twists reverse fatigue test device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105784386A (en) * | 2016-04-06 | 2016-07-20 | 贵州大学 | Five-degrees-of-freedom articulated mechanism detection method and detection platform |
| CN111929069A (en) * | 2020-07-24 | 2020-11-13 | 东风商用车有限公司 | Test bench for simulating working condition of vehicle frame |
| CN113188810A (en) * | 2021-03-31 | 2021-07-30 | 广西汽车集团有限公司 | Method for determining frame fatigue bench test scheme of non-bearing type vehicle body |
-
2015
- 2015-11-05 CN CN201520877076.2U patent/CN205079939U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105784386A (en) * | 2016-04-06 | 2016-07-20 | 贵州大学 | Five-degrees-of-freedom articulated mechanism detection method and detection platform |
| CN105784386B (en) * | 2016-04-06 | 2018-11-13 | 贵州大学 | A kind of five degree of freedom linkwork detection method and detection platform |
| CN111929069A (en) * | 2020-07-24 | 2020-11-13 | 东风商用车有限公司 | Test bench for simulating working condition of vehicle frame |
| CN111929069B (en) * | 2020-07-24 | 2021-05-11 | 东风商用车有限公司 | Test bench for simulating working condition of vehicle frame |
| CN113188810A (en) * | 2021-03-31 | 2021-07-30 | 广西汽车集团有限公司 | Method for determining frame fatigue bench test scheme of non-bearing type vehicle body |
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