CN203719921U - Inner rotary drum simulation pavement deformation eliminating device - Google Patents
Inner rotary drum simulation pavement deformation eliminating device Download PDFInfo
- Publication number
- CN203719921U CN203719921U CN201420069983.XU CN201420069983U CN203719921U CN 203719921 U CN203719921 U CN 203719921U CN 201420069983 U CN201420069983 U CN 201420069983U CN 203719921 U CN203719921 U CN 203719921U
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- load balance
- tire
- rotary drum
- simulated roadway
- loading assembly
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Abstract
The utility model belongs to the tire characteristic test technology field and specifically relates to a device for eliminating inner rotary drum simulation pavement deformation in heavy duty tire characteristic test processes. The inner rotary drum simulation pavement deformation eliminating device comprises an inner rotary drum simulation pavement (1), a test tire (2) and a six component force transducer (3). The inner rotary drum simulation pavement deformation eliminating device is characterized by additionally comprising a servo-actuated load balance execution apparatus, a load balance tire (4) and a computer control unit (9). The device is simple and reasonable; through real-time control of radial deformation and a side slip angle that are loaded on the load balance tire, acting force applied on an outer drum face of the inner rotary drum simulation pavement by the load balance tire can be controlled in a real-time manner, and acting force applied on an inner drum face by the test tire can be offset. The technical problem that the inner rotary drum simulation pavement deforms easily when the heavy duty tire is loaded on the inner rotary drum simulation pavement in tire characteristic test processes.
Description
Technical field
The utility model belongs to tire characteristics technical field of measurement and test, be specifically related to a kind of when eliminating heavy duty tire characteristic test in the device of rotary drum simulated roadway distortion.
Background technology
Simulated roadway is as the important component part of tire characteristics testing machine, and can it simulate actual road surface really has important impact to the measurement result of tire characteristics testing machine.At present, because interior rotary drum simulated roadway is in the advantage of measuring tire characteristics on neatly road surface, ice and snow road, uneven road surface, change friction factor road surface, make interior rotary drum simulated roadway become one of the principal mode on tire characteristics test simulation road surface.
But because interior rotary drum simulated roadway must adopt one-sided disc semi-closed structure, when by aircraft tyre, heavily block the heavy duty tires such as tire and be loaded into interior rotary drum simulated roadway and carry out tire characteristics whens test, interior rotary drum simulated roadway is easy to produce radially and Leading Edge Deformation under the effect of large vertical force and large side force, not only reduce the degree of accuracy of test figure, in the time of high-speed test (HST), also had certain potential safety hazard.Therefore, in the urgent need to a kind of when eliminating heavy duty tire characteristic test in the device of rotary drum simulated roadway distortion.
On interior rotary drum simulated roadway, load in order to solve the problem easily deforming when heavy duty tire carries out tire characteristics test, main method is the mechanical stiffness of rotary drum simulated roadway in improving by topological structure optimization at present, for example, reinforcement is installed on interior rotary drum simulated roadway, is adopted variable cross section disc etc.Although these methods have reduced distortion to a certain extent, its cost is system architecture complex, also conventionally causes manufacturing processing cost and significantly improves; In addition, the rotary drum quality of increase also can reduce the natural frequency of simulated roadway system, affects test effect; Further, the repeated action of the internal rotary drum simulated roadway of testing tire can cause interior rotary drum simulated roadway slowly to produce fatigue deformation.And the device of rotary drum simulated roadway distortion in the elimination the utility model proposes, in ensureing, rotary drum simulated roadway suffered external force in tire characteristics test process is zero substantially, therefore in can ensureing in long-time, rotary drum simulated roadway does not deform, and has greatly improved the life-span of interior rotary drum simulated roadway.
Utility model content
The purpose of this utility model is that a kind of device of eliminating interior rotary drum simulated roadway distortion will be provided, and improves precision and the security of test.
By reference to the accompanying drawings, be described as follows:
A device of eliminating interior rotary drum simulated roadway distortion, comprises interior rotary drum simulated roadway 1, testing tire 2, six-component sensor 3, and it also comprises servo-actuated load balance actuating unit, load balance tire 4 and computer control unit 9;
Described servo-actuated load balance actuating unit comprises to be responsible for loading the load balance tire vertical loading assembly of corresponding radial deformation and loading the load balance side force of tire loading assembly of respective lateral power to load balance tire 4;
Described side force is the side force of load balance Wheel slip motion generation and/or the side force that roll motion produces;
The top of the load balance tire vertical loading assembly of described servo-actuated load balance actuating unit is fixed with support 15, and load balance tire 4 is rotationally connected with support 15; Load balance tire 4 is loaded in the outer drum surface of interior rotary drum simulated roadway 1 by load balance tire vertical loading assembly, and can in outer drum surface, roll, and ground connection trace center and the testing tire ground connection trace center on interior drum surface of this load balance tire in outer drum surface, both circumferential positions on interior rotary drum simulated roadway 1 are with all consistent with respect to the lateral position of interior rotary drum simulated roadway 1 disc;
Described testing tire 2 is connected with computer control unit 9 by six-component sensor 3, and the output terminal of computer control unit 9 is connected with the drive system of load balance tire vertical loading assembly and load balance side force of tire loading assembly respectively.
Described load balance tire vertical loading assembly comprises sleeve 18, servo hydraulic cylinder 5, the circumferential lockable mechanism of piston rod; Described sleeve 18 is enclosed within the outside of servo hydraulic cylinder 5, and meanwhile, circumferentially fixing between sleeve 18 and the cylinder barrel 17 of servo hydraulic cylinder 5, servo hydraulic cylinder 5 is responsible for load balance tire 4 to load corresponding radial deformation.
Piston rod 16 tops of described servo hydraulic cylinder 5 are fixed with support 15.
The circumferential lockable mechanism of described piston rod comprises two locking guide poles 14 and four boss with circular hole 13 that are made of one with sleeve 18, and described two locking guide poles 14 are through piston rod 16, and the circular hole of boss 13 is passed respectively at two ends; This boss 13 can limit the radial motion of two locking guide poles 14, and still, the surface of contact between boss 13 and locking guide pole 14 is smooth, and locking guide pole 14 can motion vertically in the circular hole of boss 13.
Described to load assembly to side force that load balance tire loads respective lateral power be load balance Wheel slip Motion loading assembly, and this load balance Wheel slip Motion loading assembly comprises the servomotor 11 that is fixed on servomotor seat 10, is fixed on worm screw 12, external tooth turntable bearing 7, pedestal 8 on worm screw pedestal 6; The lower surface of the inner ring 19 of described external tooth turntable bearing 7 and pedestal 8 are fixing, outside, outer ring band tooth, and the upper surface of outer ring 20 and sleeve 17 are fixing, worm screw 12 can drive the outer ring gear of external tooth turntable bearing 7 to rotate under the driving of servomotor 11, form turbine and worm mechanism, realize the loading to load balance tire 4 side drift angles;
The output terminal of computer control unit 9 is connected with servomotor 11 with the servo hydraulic cylinder 5 of load balance tire vertical loading assembly and load balance Wheel slip Motion loading assembly respectively.
Advantage of the present utility model and beneficial effect are:
A kind of device of eliminating interior rotary drum simulated roadway distortion the utility model proposes, this device advantages of simple, carry out the acting force in outer drum surface that real-time control load balance tire is applied to interior rotary drum simulated roadway by real-time controlled loading to the radial deformation of load balance tire and side drift angle, thereby offset testing tire and be loaded into the acting force of interior drum surface, the effect that interior rotary drum simulated roadway is not stressed, thereby be difficult for deforming, greatly improved the life-span of interior rotary drum simulated roadway.
Brief description of the drawings
Fig. 1 is the one-piece construction schematic diagram of a kind of device of eliminating interior rotary drum simulated roadway distortion of the utility model;
Fig. 2 is the one-piece construction schematic diagram of the servo-actuated load balance actuating unit of the utility model;
Fig. 3 is the utility model load balance tire vertical loading assembly and external tooth turntable bearing cut-open view;
Wherein: 1, interior rotary drum simulated roadway 2, testing tire 3, six-component sensor 4, load balance tire 5, servo hydraulic cylinder 6, worm screw pedestal 7, external tooth turntable bearing 8, pedestal 9, computer control unit 10, servomotor seat 11, servomotor 12, worm screw 13, boss 14, locking guide pole 15, support 16, piston rod 17, cylinder barrel 18, sleeve 19, external tooth turntable bearing inner ring 20, external tooth turntable bearing outer ring
Embodiment:
Below in conjunction with embodiment, the technical solution of the utility model is made further instructions.
As shown in FIG. 1 to 3, a kind of device of eliminating interior rotary drum simulated roadway distortion of the utility model, this device is radial deformation and the side drift angle to load balance tire by real-time controlled loading, carry out real-time control load balance tire and put on vertical force and the side force in the outer drum surface of interior rotary drum simulated roadway, put on the acting force in interior drum surface to offset testing tire; This device comprises interior rotary drum simulated roadway 1, testing tire 2, six-component sensor 3, and it also comprises servo-actuated load balance actuating unit, load balance tire 4 and computer control unit 9.
Described six-component sensor 3 is connected with testing tire 2, can measure the side force that testing tire 2 results from the vertical force perpendicular to interior drum surface in ground connection trace and is tangential on interior drum surface in the time that interior rotary drum simulated roadway 1 rolls;
Described servo-actuated load balance actuating unit comprises load balance tire vertical loading assembly and load balance Wheel slip Motion loading assembly;
Load balance tire vertical loading assembly in described servo-actuated load balance actuating unit is responsible for loading corresponding radial deformation to load balance tire, and this load balance tire vertical loading assembly comprises sleeve 18, servo hydraulic cylinder 5, the circumferential lockable mechanism of piston rod;
Described sleeve 18 is enclosed within the outside of servo hydraulic cylinder 5, plays the effect that improves the radial force that can bear of servo hydraulic cylinder 5,, between sleeve 18 and the cylinder barrel 17 of servo hydraulic cylinder 5, is connected by flat key, to realize circumferentially fixing between the two meanwhile;
Described servo hydraulic cylinder 5 is responsible for load balance tire 4 to load corresponding radial deformation;
Piston rod 16 tops of described servo hydraulic cylinder 5 are fixed with support 15, and load balance tire 4 is rotationally connected with support 15; Load balance tire 4 is loaded in the outer drum surface of interior rotary drum simulated roadway 1 by load balance tire vertical loading assembly, and can in outer drum surface, roll, and ground connection trace center and the testing tire ground connection trace center on interior drum surface of this load balance tire in outer drum surface, both circumferential positions on interior rotary drum simulated roadway 1 are with all consistent with respect to the lateral position of interior rotary drum simulated roadway 1 disc;
The circumferential lockable mechanism of described piston rod can prevent the circumferential rotation between sleeve 18 and servo-hydraulic cylinder piston rod 16, and the circumferential lockable mechanism of this piston rod comprises two locking guide poles 14 and four boss with circular hole 13 that are made of one with sleeve.Described two locking guide poles 14 are through piston rod 16, and the circular hole of boss 13 is passed respectively at two ends; This boss 13 can limit the radial motion of two locking guide poles 14, and still, the surface of contact between boss 13 and locking guide pole 14 is smooth, and locking guide pole 14 can move vertically in the circular hole of boss 13;
Load balance Wheel slip Motion loading assembly in described servo-actuated load balance actuating unit is responsible for loading corresponding side drift angle to load balance tire, and this load balance Wheel slip Motion loading assembly comprises servomotor seat 10, servomotor 11, worm screw pedestal 6, worm screw 12, external tooth turntable bearing 7, pedestal 8;
Described servomotor seat 10 is for supporting servomotor 11; Described servomotor 11 is for driving worm screw 12; Described worm screw pedestal 6 is for supporting worm screw 12; Described worm screw 12 can drive the outer ring gear of external tooth turntable bearing 7 to rotate, and forms turbine and worm mechanism;
The lower surface of the inner ring 19 of described external tooth turntable bearing 7 is fixing by bolt and pedestal 8, outside, outer ring band tooth, and the upper surface of outer ring 20 and sleeve 18 are bolted, turbine and worm mechanism drives outer ring 20, thereby drive whole load balance tire vertical loading assembly to rotate, realize the loading to load balance 4 slip angle of tire;
Described testing tire 2 is connected with computer control unit 9 by six-component sensor 3, and the output terminal of computer control unit 9 is connected with servomotor 11 with the servo hydraulic cylinder 5 of load balance tire vertical loading assembly and load balance Wheel slip Motion loading assembly respectively.
Described computer control unit 9 gathers testing tire 2 that six-component sensor 3 exports vertical force and the side force to interior drum surface, according to the model of load balance tire 4 vertical forces and radial-deformation, lateral deviation side force and side drift angle relation, calculate radial-deformation, the side drift angle of load balance tire 4, and control radial deformation and side drift angle that servo-actuated load balance actuating unit obtains load balance tire 4 loading calculations.
A kind of method of eliminating interior rotary drum simulated roadway distortion, the method loads a load balance tire in the outer drum surface of interior rotary drum simulated roadway, the acting force that puts on outer drum surface by this tire of real-time control is offset testing tire and is put on the acting force in interior drum surface, thereby in ensureing, rotary drum simulated roadway is difficult for deforming, and at least comprises the following steps:
The first step: load a load balance tire that can roll in the outer drum surface of interior rotary drum simulated roadway in outer drum surface, ground connection trace center and the testing tire ground connection trace center on interior drum surface of this load balance tire in outer drum surface, both circumferential positions on interior rotary drum simulated roadway are with all consistent with respect to the lateral position of interior rotary drum simulated roadway disc;
Second step: measure the vertical load of load balance tire in the time that the outer drum surface of interior rotary drum simulated roadway is rolled, the test figure of lateral deviation side force characteristic, application Pacejka professor's Magic Formula model or Guo Konghui professor's UniTire tire model etc., by parameter identification, set up the model of describing load balance vertical force of tire and radial-deformation, lateral deviation side force and side drift angle relation;
The 3rd step: the vertical force of the testing tire being rolled in interior drum surface by six-component sensor Real-time Collection and side force;
The 4th step: the vertical force of the testing tire that computer control unit obtains according to Real-time Collection and side force, by the load balance vertical force of tire of foundation and the model of radial-deformation, lateral deviation side force and side drift angle relation, calculate radial-deformation, the side drift angle of load balance tire;
The 5th step: the radial-deformation and the side drift angle that are calculated to load balance tire real-time loading by servo-actuated load balance actuating unit, make load balance tire produce but equal-sized vertical force and side force contrary with testing tire action direction, the vertical force and the side force counteracting testing tire that just make load balance tire put on outer drum surface put on vertical force and the side force of interior drum surface, thereby can ensure that interior rotary drum simulated roadway is difficult for deforming.
Claims (6)
1. the device of rotary drum simulated roadway distortion in an elimination, comprise interior rotary drum simulated roadway (1), testing tire (2), six-component sensor (3), it is characterized in that: it also comprises servo-actuated load balance actuating unit, load balance tire (4) and computer control unit (9);
Described servo-actuated load balance actuating unit comprises to be responsible for loading the load balance tire vertical loading assembly of corresponding radial deformation and loading the load balance side force of tire loading assembly of respective lateral power to load balance tire (4);
Described side force is the side force of load balance Wheel slip motion generation and/or the side force that roll motion produces;
The top of the load balance tire vertical loading assembly of described servo-actuated load balance actuating unit is fixed with support (15), and load balance tire (4) is rotationally connected with support (15); Load balance tire (4) is loaded in the outer drum surface of interior rotary drum simulated roadway (1) by load balance tire vertical loading assembly, and can in outer drum surface, roll, and ground connection trace center and the testing tire ground connection trace center on interior drum surface of this load balance tire in outer drum surface, both circumferential positions on interior rotary drum simulated roadway (1) are with all consistent with respect to the lateral position of interior rotary drum simulated roadway (1) disc;
Described testing tire (2) is connected with computer control unit (9) by six-component sensor (3), and the output terminal of computer control unit (9) is connected with the drive system of load balance tire vertical loading assembly and load balance side force of tire loading assembly respectively.
2. a kind of device of eliminating interior rotary drum simulated roadway distortion according to claim 1, is characterized in that: described load balance tire vertical loading assembly comprises sleeve (18), servo hydraulic cylinder (5), the circumferential lockable mechanism of piston rod; Described sleeve (18) is enclosed within the outside of servo hydraulic cylinder (5), and meanwhile, circumferentially fixing between sleeve (18) and the cylinder barrel (17) of servo hydraulic cylinder (5), servo hydraulic cylinder (5) is responsible for load balance tire (4) to load corresponding radial deformation.
3. a kind of device of eliminating interior rotary drum simulated roadway distortion according to claim 2, is characterized in that: piston rod (16) top of described servo hydraulic cylinder (5) is fixed with support (15).
4. a kind of device of eliminating interior rotary drum simulated roadway distortion according to claim 2, it is characterized in that: the circumferential lockable mechanism of described piston rod comprises two locking guide poles (14) and four boss with circular hole (13) that are made of one with sleeve (18), described two locking guide poles (14) are through piston rod (16), and the circular hole of boss (13) is passed respectively at two ends; This boss (13) can limit the radial motion of two locking guide poles (14), and still, the surface of contact between boss (13) and locking guide pole (14) is smooth, and locking guide pole (14) can motion vertically in the circular hole of boss (13).
5. a kind of device of eliminating interior rotary drum simulated roadway distortion according to claim 1, it is characterized in that: it is load balance Wheel slip Motion loading assembly that the described side force that loads respective lateral power to load balance tire loads assembly, this load balance Wheel slip Motion loading assembly comprises the servomotor (11) that is fixed on servomotor seat (10), is fixed on worm screw (12), external tooth turntable bearing (7), pedestal (8) on worm screw pedestal (6); The lower surface of the inner ring (19) of described external tooth turntable bearing (7) and pedestal (8) are fixing, outside, outer ring band tooth, and the upper surface of outer ring (20) and sleeve (17) are fixing, worm screw (12) can drive the outer ring gear of external tooth turntable bearing (7) to rotate under the driving of servomotor (11), form turbine and worm mechanism, realize the loading to load balance tire (4) side drift angle.
6. according to a kind of device of eliminating interior rotary drum simulated roadway distortion described in claim 2 or 5, it is characterized in that: the output terminal of computer control unit (9) is connected with servomotor (11) with the servo hydraulic cylinder (5) of load balance tire vertical loading assembly and load balance Wheel slip Motion loading assembly respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420069983.XU CN203719921U (en) | 2014-02-18 | 2014-02-18 | Inner rotary drum simulation pavement deformation eliminating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420069983.XU CN203719921U (en) | 2014-02-18 | 2014-02-18 | Inner rotary drum simulation pavement deformation eliminating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203719921U true CN203719921U (en) | 2014-07-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420069983.XU Withdrawn - After Issue CN203719921U (en) | 2014-02-18 | 2014-02-18 | Inner rotary drum simulation pavement deformation eliminating device |
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| Country | Link |
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| CN (1) | CN203719921U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103759953A (en) * | 2014-02-18 | 2014-04-30 | 吉林大学 | Method and device for eliminating deformation of inner drum simulation road surface |
| CN109470489A (en) * | 2018-09-29 | 2019-03-15 | 陕西理工大学 | A kind of the electrodynamic analogy device and Road quality simulation method on multi-state road surface |
| WO2019068425A3 (en) * | 2017-10-06 | 2020-04-23 | Zf Friedrichshafen Ag | Running drum arrangement for a test stand and test stand comprising the running drum arrangement |
| CN111638069A (en) * | 2020-07-23 | 2020-09-08 | 吉林大学 | Coupling lateral force eliminating device for tire rigidity test bed |
-
2014
- 2014-02-18 CN CN201420069983.XU patent/CN203719921U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103759953A (en) * | 2014-02-18 | 2014-04-30 | 吉林大学 | Method and device for eliminating deformation of inner drum simulation road surface |
| WO2019068425A3 (en) * | 2017-10-06 | 2020-04-23 | Zf Friedrichshafen Ag | Running drum arrangement for a test stand and test stand comprising the running drum arrangement |
| CN109470489A (en) * | 2018-09-29 | 2019-03-15 | 陕西理工大学 | A kind of the electrodynamic analogy device and Road quality simulation method on multi-state road surface |
| CN111638069A (en) * | 2020-07-23 | 2020-09-08 | 吉林大学 | Coupling lateral force eliminating device for tire rigidity test bed |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140716 Effective date of abandoning: 20141008 |
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| RGAV | Abandon patent right to avoid regrant |