CN214894088U - Axle test rack - Google Patents
Axle test rack Download PDFInfo
- Publication number
- CN214894088U CN214894088U CN202120809874.7U CN202120809874U CN214894088U CN 214894088 U CN214894088 U CN 214894088U CN 202120809874 U CN202120809874 U CN 202120809874U CN 214894088 U CN214894088 U CN 214894088U
- Authority
- CN
- China
- Prior art keywords
- axle
- positioning
- plate
- cylinder
- main body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The application discloses an axle test bench, which comprises a vibration test bench, an axle positioning device and a control unit, wherein the vibration test bench comprises an upper plate, a joint pin shaft, a connecting rod, an eccentric unit, a flywheel, an eccentric base, a lower plate, a guide pillar, a motor unit and a driving belt; the upper plate is positioned on the guide post in a sliding manner, and the main body of the guide post is cylindrical and is fixed on the lower plate; one end of the connecting rod is positioned with a contact block body, the contact block body is positioned on the connecting rod through the joint pin shaft, and the connecting rod is used for transmitting action and power; the eccentric unit is rotatably and fixedly connected to the eccentric base; the eccentric base is positioned on the lower plate and is used for supporting and positioning the eccentric unit; the flywheel is positioned on the eccentric unit and is used for being matched with the transmission belt to transmit power from the motor unit; the axle positioning device is used for supporting and positioning an axle.
Description
Technical Field
The utility model relates to a testing arrangement technical field especially relates to an axle test rack.
Background
The axle test bench is used for simulating a road driving environment, and performing limit test or durability test on an axle so as to judge the performances of the axle, such as structural rigidity and the like.
The existing vibration bench (axle test bench) is mainly hydraulic, if the amplitude of the vibration bench (plus or minus 35mm) reaches the requirement, the hydraulic frequency is basically less than 2Hz and lower than the test requirement of 3Hz, a large hydraulic station platform is needed to support the whole hydraulic system, the size is large, and the power loss is also large. Moreover, the structure is often an integral up-and-down movement, and the road condition cannot be comprehensively simulated (the left wheel and the right wheel are twisted with each other).
SUMMERY OF THE UTILITY MODEL
The embodiment of the application provides an axle test rack, has solved among the prior art axle test rack bulky, power consumption big and can't simulate the technical problem of the effect of the torsional stress that the vehicle axle bore in the driving process, has realized little volume, low energy consumption and can simulate the vehicle in the technical effect of the torsional stress that the vehicle axle bore in the driving process.
The embodiment of the application provides an axle test bench, which comprises a vibration test bench, an axle positioning device and a control unit, wherein the vibration test bench comprises an upper plate, a joint pin shaft, a connecting rod, an eccentric unit, a flywheel, an eccentric base, a lower plate, a guide pillar, a motor unit and a transmission belt;
the upper plate is positioned on the guide post in a sliding manner, and the main body of the guide post is cylindrical and is fixed on the lower plate;
one end of the connecting rod is positioned with a contact block body, the contact block body is positioned on the connecting rod through the joint pin shaft, and the connecting rod is used for transmitting action and power;
the eccentric unit is rotatably and fixedly connected to the eccentric base;
the eccentric base is positioned on the lower plate and is used for supporting and positioning the eccentric unit;
the flywheel is positioned on the eccentric unit and is used for being matched with the transmission belt to transmit power from the motor unit;
the axle positioning device is used for supporting and positioning an axle.
The axle positioning device further comprises a main bracket, a positioning rod and a load simulation device;
the main bracket is used for supporting and positioning the positioning rod and the load simulation device;
the positioning rod main body is in a rod shape, one end of the positioning rod main body is rotatably and fixedly connected to the main support, and the other end of the positioning rod main body is fixed to the axle and used for limiting the space position of the axle during testing.
The load simulation device further comprises a cylinder bracket, a force application cylinder and a floating support;
the load simulator plays a role of applying load on the axle under test;
the cylinder supports are positioned on the main support, and the number of the cylinder supports is two, so that the cylinder supports play a role in supporting and positioning the force application cylinders;
the number of the force application cylinders is two, the two force application cylinders are symmetrically arranged, and when the test is carried out, a load is applied to the vehicle axle under test;
the floating support is positioned at one end, away from the air cylinder support, of the piston rod of the force application air cylinder and used for positioning the piston rod of the force application air cylinder on an axle under test.
Preferably, the device also comprises a torsional stress simulator;
the torsional stress simulation device comprises a tension cylinder, a bearing shaft and an auxiliary clamp;
the tension cylinder is fixed on the main bracket or the lower plate, and the included angle between the axial direction of the tension cylinder and the normal direction of the horizontal ground is 0-30 degrees;
the auxiliary clamp main body is in a plate shape, and through holes are densely distributed on the auxiliary clamp main body;
one end of the auxiliary clamp is fixed on the detected axle through a bolt;
the end part of the piston rod head of the pull cylinder is positioned on the auxiliary clamp through the bearing shaft, and the pull cylinder is hinged with the auxiliary clamp;
during detection, the torsional stress simulator operates, the tension cylinder contracts, and downward tension is applied to the detected axle.
Preferably, the device also comprises a vibration simulation device;
the vibration simulation device comprises a sliding plate, a sliding plate driving component, a sliding plate resetting component and a bump group;
the sliding plate is positioned on the upper plate in a sliding mode, and the sliding plate driving assembly is used for driving the sliding plate to slide along the length direction or the width direction of the upper plate;
the sliding plate resetting component is used for resetting the sliding plate after sliding;
the convex block group is a combination of a plurality of block bodies with the same size or different sizes, is positioned on the upper surface of the sliding plate and is used for simulating the ground with different concave-convex shapes.
The upper plate main body is further in a plate shape, a guide hole is positioned on the upper plate, and the upper plate is sleeved and positioned on the guide post through the guide hole; the number of the guide holes is the same as that of the guide posts;
the abutting block body is in direct contact with the bottom surface of the upper plate and is used for exerting acting force on the upper plate so as to drive the upper plate to slide.
The lug group further comprises a lug main body and a lug positioning component; the lug main body is detachably fixed on the sliding plate through the lug positioning component.
The bump main body preferably has various specifications, and can be freely combined to simulate different road surfaces.
Preferably, the sliding plate driving component is a winch, and the sliding plate resetting component is a tension spring or an elastic rope.
Preferably, the set of lugs is integrally formed with the slide plate.
One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:
the platform is driven to operate by directly adopting a mechanical driving structure, the amplitude of the platform is realized by the offset distance of a cam, the platform moves up and down by being guided by a guide pillar and adopts a motor as a power source, the motor is arranged below the platform, one axle adopts two symmetrically arranged platforms for testing, and corresponding programs are utilized to respectively control the left platform and the right platform so as to realize the simulation of different road conditions; the technical problems that an axle test bench in the prior art is large in size and energy consumption and cannot simulate the effect of torsional stress borne by an axle in the driving process of a vehicle are effectively solved, and the technical effects that the size is small, the energy consumption is low, and the torsional stress borne by the axle in the driving process of the vehicle can be simulated are further achieved.
Drawings
FIG. 1 is a schematic view of the overall structure of the axle test bed of the present invention;
FIG. 2 is a schematic structural view of a shock test bed of the axle test bed of the present invention;
FIG. 3 is a schematic diagram of the position relationship between the vibration test rack and the axle of the axle test rack of the present invention;
FIG. 4 is a left side view of the axle test bed of the present invention;
FIG. 5 is an isometric view of the axle test bed of the present invention;
fig. 6 is a first structural schematic diagram of the vibration simulation device of the axle test bed of the present invention;
fig. 7 is a structural schematic diagram of a vibration simulation device of the axle test bed of the present invention;
fig. 8 is a third structural schematic view of the vibration simulation device of the axle test bed of the present invention;
in the figure:
a vibration test bench 10, an upper plate 11, a joint pin 12, a connecting rod 13, an eccentric unit 14, a flywheel 15, an eccentric base 16, a lower plate 17, a guide post 18, a motor unit 19,
An axle positioning device 20, a main bracket 21, a positioning rod 22,
A load simulator 30, a cylinder holder 31, an urging cylinder 32, a floating support 33,
A torsional stress simulator 40, a tension cylinder 41, a bearing shaft 42, an auxiliary clamp 43,
A vibration simulator 50, a sliding plate 51, a sliding plate driving member 52, a sliding plate returning member 53, a bump group 54, a bump main body 55, a bump positioning member 56;
Detailed Description
In order to facilitate an understanding of the present invention, the present application will now be described more fully with reference to the accompanying drawings; the preferred embodiments of the present invention are illustrated in the accompanying drawings, but can be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete.
It is noted that the terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs; the terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention; as used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Fig. 1 is a schematic view of the overall structure of the axle test bed of the present invention; the axle test bench comprises a vibration test bench 10, an axle positioning device 20 and a control unit; this application is through the drive structure drive platform operation that directly adopts mechanical type, and the amplitude of platform is realized by the offset distance of cam, through the guide pillar direction and up-and-down motion and adopt the motor as the power supply, makes the motor setting in the platform below, and an axle adopts the platform of two symmetries settings to test, utilizes two platforms about corresponding procedure control respectively and then realizes simulating different road conditions.
Example one
As shown in fig. 1, the axle test stand of the present application includes a shock test stand 10, an axle locating device 20, and a control unit;
the vibration test bench 10 is shown in fig. 1 and 2 and comprises an upper plate 11, a joint pin 12, a connecting rod 13, an eccentric unit 14, a flywheel 15, an eccentric base 16, a lower plate 17, a guide post 18, a motor unit 19 and a transmission belt;
the upper plate 11 is positioned on the guide post 18 in a sliding manner, the main body of the upper plate is in a plate shape, a guide hole is positioned on the upper plate 11, and the upper plate 11 is sleeved and positioned on the guide post 18 through the guide hole; the number of the guide holes is the same as that of the guide posts 18;
one end of the connecting rod 13 is positioned with a contact block body, the contact block body is positioned on the connecting rod 13 through the joint pin shaft 12, the connecting rod 13 is used for transmitting action and power, and the contact block body is directly contacted with the bottom surface of the upper plate 11 and is used for exerting acting force on the upper plate 11 so as to drive the upper plate 11 to slide;
the eccentric unit 14 is rotatably and fixedly connected to the eccentric base 16, and is used for converting the transmitted rotating motion into sliding motion; the eccentric base 16 is positioned on the lower plate 17 and is used for supporting and positioning the eccentric unit 14;
the flywheel 15 is positioned on the eccentric unit 14 and is used for being matched with the transmission belt to transmit power from the motor unit 19;
the main body of the guide post 18 is cylindrical and is fixed on the lower plate 17, the number of the guide posts is three or four, and the plurality of guide posts 18 are all the same in the axial direction.
The axle positioning device plays a role in supporting and positioning an axle (driving/driven axle), and the main body of the axle positioning device is preferably of a cantilever beam structure; further, as shown in fig. 1, the axle positioning device 20 includes a main bracket 21, a positioning rod 22 and a load simulator 30;
the main bracket 21 is a cantilever beam structure as shown in fig. 1, and is used for supporting and positioning the positioning rod 22 and the load simulator 30; the main body of the positioning rod 22 is rod-shaped, as shown in fig. 5, one end of the positioning rod is rotatably and fixedly connected to the main bracket 21, and the other end of the positioning rod is fixed to the axle through a positioning component such as a bolt, and is used for limiting the spatial position of the axle during testing;
the load simulator 30 functions to apply a load to the axle under test; further, the load simulator 30 includes a cylinder bracket 31, a force application cylinder 32 and a floating support 33; as shown in fig. 1, the cylinder supports 31 are positioned on the main support 21, and the number of the cylinder supports is two, and the cylinder supports play a role in supporting and positioning the force application cylinders 32; the number of the force application air cylinders 32 is two, the two force application air cylinders are symmetrically arranged, and when the test is carried out, a load is applied to the axle under test; the floating support 33 is positioned at one end of the piston rod of the force application cylinder 32 away from the cylinder bracket 31, and is similar to a crane support foot plate in structure and used for positioning the piston rod of the force application cylinder 32 on the axle under test.
The control unit is used for controlling the coordinated operation of all parts of the axle test bench, and is not described herein for the prior art.
As shown in figure 3, the axle test bench is directly driven mechanically, the amplitude of the platform is realized by the offset distance of a cam, the platform moves up and down through the guide of a guide post, the power is a variable frequency motor, the corresponding vibration frequency can be changed through a frequency converter, and the frequency is 0.2-4 Hz; the motor is arranged below the platform, so that the whole size is small, and the loss is low due to less transmission; the modular structure is adopted, one vibration platform is arranged on the left and the right, the controller is used for respectively controlling the left vibration platform and the right vibration platform, and corresponding programs are appointed to realize simulation of different road conditions, left and right twisting, common up and down, and even left and right swinging jumping with different frequencies.
The technical scheme in the embodiment of the application at least has the following technical effects or advantages:
the technical problems that an axle test bench in the prior art is large in size and energy consumption and cannot simulate the effect of torsional stress borne by an axle in the driving process of a vehicle are solved, and the technical effects that the size is small, the energy consumption is low, and the torsional stress borne by the axle in the driving process of the vehicle can be simulated are achieved.
Example two
In order to further simulate real road conditions (simulate the torsional stress borne by the axle in the driving process) and further enable the test data to be more accurate, the torsional stress simulation device 40 is additionally arranged on the basis of the embodiment; as shown in fig. 4, the torsional stress simulator 40 includes a tension cylinder 41, a bearing shaft 42 and an auxiliary clamp 43; the pulling cylinder 41 is fixed on the main bracket 21 or the lower plate 17, and the axial direction of the pulling cylinder 41 is approximate to the normal direction of the horizontal ground (the included angle between the axial direction of the pulling cylinder 41 and the normal direction of the horizontal ground is 0-30 degrees); the main body of the auxiliary clamp 43 is in a plate shape, and through holes are densely distributed on the main body; one end of the auxiliary clamp 43 is fixed on the detected axle through a positioning component such as a bolt; the end part of the piston rod head of the pulling cylinder 41 is positioned on the auxiliary clamp 43 through the bearing shaft 42, and the pulling cylinder 41 and the auxiliary clamp 43 are hinged with each other; during detection, the torsional stress simulator 40 operates, the tension cylinder 41 contracts, and downward tension is applied to the detected axle; the axle test bench is used for judging the structural rigidity and the bending resistance of the axle.
EXAMPLE III
In order to further simulate real road conditions and simulate the micro-vibration borne by the axle due to uneven ground when the vehicle runs, the embodiment of the application is additionally provided with the vibration simulation device 50 on the basis of the embodiment.
As shown in fig. 6, 7 and 8, the vibration simulation apparatus 50 includes a sliding plate 51, a sliding plate driving member 52, a sliding plate returning member 53 and a projection group 54; the sliding plate 51 is slidably positioned on the upper plate 11, and the sliding plate driving assembly 52 is used for driving the sliding plate 51 to slide along the length direction or the width direction of the upper plate 11; the sliding plate 51 is preferably a rectangular plate; the sliding plate resetting component 53 is used for resetting the sliding plate 51 after sliding; the convex block group 54 is a combination of a plurality of blocks with the same size or different sizes, and is positioned on the upper surface of the sliding plate 51, and the convex block group 54 is used for simulating different concave-convex ground surfaces; in actual use, the sliding plate 51 slides back and forth to simulate a real road surface. Preferably, the protrusion set 54 is integrally formed with the sliding plate 51.
Preferably, the bump set 54 includes a bump main body 55 and a bump positioning component 56; the cam main body 55 is detachably fixed on the sliding plate 51 by the cam positioning assembly 56;
preferably, the bump main body 55 has various specifications, and can be freely combined to simulate different road surfaces;
preferably, the sliding plate driving component 52 is a winch, and the sliding plate returning component 53 is a tension spring or a stretch rope;
the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and those skilled in the art can make various modifications and variations. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An axle test bench comprises a vibration test bench, an axle positioning device and a control unit, and is characterized in that,
the vibration test bench comprises an upper plate, a joint pin shaft, a connecting rod, an eccentric unit, a flywheel, an eccentric base, a lower plate, a guide pillar, a motor unit and a transmission belt;
the upper plate is positioned on the guide post in a sliding manner, and the main body of the guide post is cylindrical and is fixed on the lower plate;
one end of the connecting rod is positioned with a contact block body, the contact block body is positioned on the connecting rod through the joint pin shaft, and the connecting rod is used for transmitting action and power;
the eccentric unit is rotatably and fixedly connected to the eccentric base;
the eccentric base is positioned on the lower plate and is used for supporting and positioning the eccentric unit;
the flywheel is positioned on the eccentric unit and is used for being matched with the transmission belt to transmit power from the motor unit;
the axle positioning device is used for supporting and positioning an axle.
2. The axle test stand of claim 1, wherein the axle test stand is configured to be mounted to a vehicle axle
The axle positioning device comprises a main bracket, a positioning rod and a load simulation device;
the main bracket is used for supporting and positioning the positioning rod and the load simulation device;
the positioning rod main body is in a rod shape, one end of the positioning rod main body is rotatably and fixedly connected to the main support, and the other end of the positioning rod main body is fixed to the axle and used for limiting the space position of the axle during testing.
3. The axle test stand of claim 2, wherein the axle test stand is configured to be mounted to a vehicle axle
The load simulation device comprises a cylinder bracket, a force application cylinder and a floating support;
the load simulator plays a role of applying load on the axle under test;
the cylinder supports are positioned on the main support, and the number of the cylinder supports is two, so that the cylinder supports play a role in supporting and positioning the force application cylinders;
the number of the force application cylinders is two, the two force application cylinders are symmetrically arranged, and when the test is carried out, a load is applied to the vehicle axle under test;
the floating support is positioned at one end, away from the air cylinder support, of the piston rod of the force application air cylinder and used for positioning the piston rod of the force application air cylinder on an axle under test.
4. The axle test stand of claim 3, further comprising a torsional stress simulator;
the torsional stress simulation device comprises a tension cylinder, a bearing shaft and an auxiliary clamp;
the tension cylinder is fixed on the main bracket or the lower plate, and the included angle between the axial direction of the tension cylinder and the normal direction of the horizontal ground is 0-30 degrees;
the auxiliary clamp main body is in a plate shape, and through holes are densely distributed on the auxiliary clamp main body;
one end of the auxiliary clamp is fixed on the detected axle through a bolt;
the end part of the piston rod head of the pull cylinder is positioned on the auxiliary clamp through the bearing shaft, and the pull cylinder is hinged with the auxiliary clamp;
during detection, the torsional stress simulator operates, the tension cylinder contracts, and downward tension is applied to the detected axle.
5. The axle test stand of any one of claims 1 to 4, further comprising a shock simulator;
the vibration simulation device comprises a sliding plate, a sliding plate driving component, a sliding plate resetting component and a bump group;
the sliding plate is positioned on the upper plate in a sliding mode, and the sliding plate driving assembly is used for driving the sliding plate to slide along the length direction or the width direction of the upper plate;
the sliding plate resetting component is used for resetting the sliding plate after sliding;
the convex block group is a combination of a plurality of block bodies with the same size or different sizes, is positioned on the upper surface of the sliding plate and is used for simulating the ground with different concave-convex shapes.
6. The axle test stand of claim 1, wherein the axle test stand is configured to be mounted to a vehicle axle
The upper plate main body is in a plate shape, a guide hole is positioned on the upper plate, and the upper plate is sleeved and positioned on the guide post through the guide hole; the number of the guide holes is the same as that of the guide posts;
the abutting block body is in direct contact with the bottom surface of the upper plate and is used for exerting acting force on the upper plate so as to drive the upper plate to slide.
7. The axle test stand of claim 5, wherein the axle test stand is configured to be mounted to a vehicle axle
The bump group comprises a bump main body and a bump positioning component; the lug main body is detachably fixed on the sliding plate through the lug positioning component.
8. The axle test rack of claim 7, wherein said bump body has a plurality of specifications that can be freely combined to simulate different road surfaces.
9. The axle test stand of claim 5, wherein the slide plate drive assembly is a winch and the slide plate return assembly is a tension spring or a bungee cord.
10. The axle test stand of claim 5, wherein the set of lugs are integrally formed with the slide plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120809874.7U CN214894088U (en) | 2021-04-20 | 2021-04-20 | Axle test rack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120809874.7U CN214894088U (en) | 2021-04-20 | 2021-04-20 | Axle test rack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214894088U true CN214894088U (en) | 2021-11-26 |
Family
ID=78948241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120809874.7U Active CN214894088U (en) | 2021-04-20 | 2021-04-20 | Axle test rack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214894088U (en) |
-
2021
- 2021-04-20 CN CN202120809874.7U patent/CN214894088U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108414248B (en) | Vehicle suspension device test bench | |
| CN102401764A (en) | Model loading device | |
| CN214894088U (en) | Axle test rack | |
| CN115077833A (en) | Contact net locator vibration fatigue test system | |
| CN104502049A (en) | Vehicle steering system impact test device and vehicle steering system impact test method | |
| CN114136659B (en) | Road simulation device and test method | |
| CN209559453U (en) | A kind of vibration test equipment | |
| CN111076953B (en) | Cable wiring test device between bogie and vehicle body | |
| CN203552501U (en) | Automobile simulating driving teaching platform | |
| CN107305154B (en) | Torsion and shear combined loading test device for air spring | |
| CN202344124U (en) | Pulley type air cylinder balance mechanism | |
| CN116754199A (en) | Integrated test device for deflection and torsional rigidity of rubber joint | |
| CN204495522U (en) | Composite insulator dynamic loading torsional test machine | |
| CN104006967A (en) | Connecting rod fatigue testing device | |
| CN206470135U (en) | A kind of shearing of bolt is continuously and impact fatigue testing machine | |
| CN101544271B (en) | Double freedom degree adjustable amplitude platform | |
| CN113418721B (en) | Farm machinery test rack convenient to debug | |
| CN104833469A (en) | Composite insulator dynamic load torsional vibration testing machine | |
| CN102000423B (en) | Vibrating training and monitoring device of isometric and multi-angle hip and leg combination force | |
| CN111665010B (en) | Civil structure antidetonation experimental apparatus | |
| CN210802827U (en) | Fatigue test device for steering axle | |
| CN201170757Y (en) | Hydraulic steerable wheel loading tester | |
| CN103511399B (en) | A kind of fatigue tester of Treadmills oil cylinder | |
| CN105092238B (en) | A kind of many moving platforms parallel connection hip joint tester of steel wire rope flexible cable transmission | |
| CN219666710U (en) | Pressure testing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |