CN101943626B - Dynamic calibration device of counter-force roller braking bench based on hydraulic servo - Google Patents
Dynamic calibration device of counter-force roller braking bench based on hydraulic servo Download PDFInfo
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- CN101943626B CN101943626B CN2010102575096A CN201010257509A CN101943626B CN 101943626 B CN101943626 B CN 101943626B CN 2010102575096 A CN2010102575096 A CN 2010102575096A CN 201010257509 A CN201010257509 A CN 201010257509A CN 101943626 B CN101943626 B CN 101943626B
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Abstract
The invention relates to a dynamic calibration device of a counter-force roller braking bench based on a hydraulic servo, mainly comprising a hydraulic servo force application device, a buffering shock absorption mechanism, a force transmission beam mechanism, a force measurement mechanism and a support frame mechanism. The invention mainly aims to solve the problem that the traditional counter-force roller braking bench can not be used for evaluating the dynamic response of a braking bed. The dynamic calibration device is arranged on the counter-force roller braking bench to form a force closed-loop control system to provide a force value changed according to an ideal standard force value curve for the calibration of the braking bed, and the standard force value curve is compared with a measuring force value curve measured by the force measurement sensor of the braking bed per se and obtained after being amplified by a filter amplifying circuit to evaluate the dynamic response quality of the braking bed to realize dynamic calibration.
Description
Technical field
The invention belongs to calibration facility, particularly relate to a kind of dynamic calibration device of drum reaction braking checkout stand based on hydraulic servo.
Background technology
At present, on mobile testing line, be to adopt the specific weight lever method to the demarcation of drum reaction braking checkout stand; Method is following: special-purpose lever is fixed tightly on the brake platform suitable position; Adjust the static equilibrium and the level of lever, select several measurement points, be loaded on full scale step by step by the number percent of brake platform full scale; Off-load reads the corresponding brake platform indicating value of each point to zero step by step then.Its outstanding characteristics are static, and brake platform is a dynamic process when detecting damping force.Because static demarcation is to react the dynamic response of brake platform,, make testing reliability descend so can occur to react the objective reality situation more truly through the qualified brake platform resulting data when testing damping force of static demarcating.
Summary of the invention
The objective of the invention is the problem that to make an appraisal to the dynamic response of brake platform for the calibration facility that solves existing drum reaction braking checkout stand; Provide a kind of simple in structure, test is reliably based on the dynamic calibration apparatus of the drum reaction braking checkout stand of hydraulic servo.
Above-mentioned purpose of the present invention can realize that accompanying drawings is following through following technical scheme:
A kind of dynamic calibration device of drum reaction braking checkout stand based on hydraulic servo mainly is made up of hydraulic servo force application apparatus A, buffer damping mechanism B, the C of transfer beam mechanism, force measuring machine D and the E of support frame mechanism,
The end of buffer damping mechanism B is fixedly connected on the C of transfer beam mechanism through oscillating bearing 38; The end of force measuring machine D is fixedly connected on the C of transfer beam mechanism through axis pin base 43, and the other end is fixedly connected with the speed reduction unit of drum reaction type brake platform test through stretching out frame 54; The C of transfer beam mechanism is connected on the E of support frame mechanism through globe bearing 39, and the E of support frame mechanism is connected on the frame of brake platform through bolt.
Said hydraulic servo force application apparatus A comprises Hydraulic Station F and force application mechanism G two parts, and the end of force application mechanism G is fixedly connected on the end of buffer damping mechanism B through piston rod 20.Described servo force application mechanism A provides driving force; Through buffer damping mechanism B, the C of transfer beam mechanism and force measuring machine D transfer function to the brake platform speed reduction unit; This power value feeds back to the electrohydraulic servo valve 29 among the force application mechanism G by the force cell that is contained among the force measuring machine D through servoamplifier; After being adjusted on request by electrohydraulic servo valve 29, control is applied to the power value size on the brake platform speed reduction unit, constitutes the closed-loop control system of power value.
Said Hydraulic Station F comprises: be fixedly connected on motor 1, filtrator 7, integrated package 8 on the fuel tank cap 5; Accumulator 13 and pouring orifice screen pack 14; Connect the hydraulic pump 4 that on the dish 2, also links to each other with motor 1 through being bolted to motor through shaft coupling 3; One end is through the retaining valve 11 that oily steel pipe links to each other with integrated package 8, the other end links to each other with threeway 12 through oily steel pipe, through the tensimeter 10 that oily steel pipe links to each other with integrated package 8, is installed in the liquid level thermometer 15 on the side of oil box 6; Through being bolted to the surplus valve 9 on the integrated package 8; Described fuel tank cap 5 is connected on the oil box 6 through screw retention, and an end of threeway 12 is connected with accumulator 13 through oily steel pipe, and the other end passes through flexible pipe and links to each other with electrohydraulic servo valve 29 among the force application mechanism G;
Described force application mechanism G mainly is made up of oil cylinder assembly H, oscillating bearing 33, electrohydraulic servo valve 29 and contiguous block 30; Described oil cylinder assembly H is connected with middle link slot steelframe 57 bolt among the E of support frame mechanism through oscillating bearing 33; Described electrohydraulic servo valve 29 is through being bolted on the contiguous block 30; Linking to each other with the oil return opening of oil box 6 through the threeway 12 among flexible pipe and the Hydraulic Station F respectively into and out of hydraulic fluid port of contiguous block 30, electrohydraulic servo valve 29 two ends are passed through steel pipe 26 respectively and are connected with oil cylinder rear flange 31 with oil cylinder forward flange 23 among the oil cylinder assembly H.
Described oil cylinder assembly H is made up of oil cylinder 28 and piston rod 20; Oil cylinder forward flange 23 is fixedly connected with 28 through thru-bolt 27 with oil cylinder rear flange 31; Afterbody bearing pin Connection Block 32 is fixedly connected with oil cylinder rear flange 31 through bolt; Piston rod 20 is assemblied in 28 li of oil cylinders, and is fixedly connected with piston 21 through clamp nut 22, and an end of piston rod 20 passes through screw thread and links to each other with spring contiguous block 35 among the buffer damping mechanism B.
Said buffer damping mechanism B mainly is made up of volute spring 34; The two ends of volute spring 34 are separately installed with spring contiguous block 35; Two anti-loosing slices 36 are fixedly connected on the spring contiguous block 35 at volute spring 34 two ends respectively through screw; To prevent volute spring 34 plaies; Oscillating bearing 38 is fixedly connected on through M20 clamp nut 37 on the spring contiguous block 35 of volute spring 34 1 ends, and the spring contiguous block of the other end of volute spring 34 35 is fixedly connected through piston rod 20 among M20 clamp nut 37 and the servo force application apparatus A.
The said transfer beam C of mechanism is made up of transfer beam 41 and transfer beam axle 42, and transfer beam 41 is connected with transfer beam axle 42 interference fit, and the two ends of transfer beam axle 42 are connected with globe bearing 39 respectively, and carry out axial location through transfer beam axle sleeve 40.
Said force measuring machine D mainly by force cell, on connect steel pipe 48 with under be connected steel pipe 51 and form; Last connection steel pipe 48 connects through passing through thread bush 50 with an end that is connected steel pipe 51 down; And it is fastening through clip 49; The other end of last connection steel pipe 48 is threaded with M39 spherical plain bearing rod end 46, and locking through M39 clamp nut 47, and M39 spherical plain bearing rod end 46 is connected with axis pin base 43 through pin type force cell 45; And the 44 pairs of pin type force cells of catch 45 that are connected on the axis pin base 43 through screw retention carry out axial location and circumferential registration; Under connect steel pipe 51 and be threaded with oscillating bearing 53, and locking through M33 clamp nut 52, oscillating bearing 53 is connected through bolt and stretches out on the frame 54.
Among the said support frame E of mechanism, preceding support slot steelframe 55 is connected channel-section steel 58 connections through indirect channel-section steel frame 57 with the back, two oblique straining beams 56 of equal angle through bolt be connected preceding support slot steelframe 55 with after be connected on the channel-section steel 58; Before support slot steelframe 55 the lower end with after be connected channel-section steel 58 and pass through bolt and be fixedly connected with the frame of brake platform.
The present invention can solve the problem that the calibration facility of existing drum reaction braking checkout stand can't be made an appraisal to the dynamic response of brake platform, realizes the dynamic calibration to drum reaction braking checkout stand, thereby guarantees the reliability of brake platform test data.The design is simple in structure, and test is reliable.
Description of drawings
Fig. 1 is based on the layout synoptic diagram of dynamic calibration device of drum reaction braking checkout stand on brake tester of hydraulic servo;
Fig. 2 is based on the dynamic calibration device of drum reaction braking checkout stand synoptic diagram of hydraulic servo;
Fig. 3 is based on the dynamic calibration device of drum reaction braking checkout stand side view of hydraulic servo;
Fig. 4 is the Hydraulic Station synoptic diagram;
Fig. 5 is the Hydraulic Station side sectional view;
Fig. 6 (a) is the Hydraulic Station top view;
Fig. 6 (b) is the Hydraulic Station side view;
Fig. 7 (a) is the force application mechanism synoptic diagram;
Fig. 7 (b) is the force application mechanism side partial sectional view;
Fig. 8 is the buffer gear synoptic diagram;
Fig. 9 is the transfer beam structural scheme of mechanism;
Figure 10 (a) is the force measuring machine synoptic diagram;
Figure 10 (b) is the local enlarged diagram on Figure 10 (a) top;
Figure 10 (c) is the local enlarged diagram at Figure 10 (a) middle part;
Figure 11 (a) is the support frame structural scheme of mechanism;
Figure 11 (b) is a support frame mechanism side view;
Figure 12 is the power value closed-loop control system figure of hydrostatic control.
Among the figure: the A. hydraulic servo force application apparatus B. buffer damping mechanism C. transfer beam D. of the mechanism force measuring machine E. support frame F. of mechanism Hydraulic Station G. force application mechanism H. oil cylinder assembly
1 motor? 2. Motor connected disk? 3. Coupling? 4. Pump? 5. Fuel cap? 6. Fuel tank body? 7. Filter? 8. Manifold 9. Relief? 10. Hydraulic table? 11 one-way valve? 12. Tee? 13. accumulator? 14 oil filter? 15. surface thermometer 16. drain plug? 17 handle? 18. withhold hose connector? 19. straight couplings? 20. Hydraulic rod? 21. Pistons? 22. fastening nut? 23. cylinder front flange? 24. hinge fittings? 25. hinge fitting screws? 26. pipe? 27 long bolts? 28. cylinder body 29. servo valve? 30. connection block? 31. cylinder rear flange? 32. tail pinned seat? 33. plain bearings? 34. coil spring? 35. spring connection block? 36. Locking plate ? 37. fastening nut? 38. plain bearings? 39. spherical bearings? 40. force transmission beam bushings? 41 power transmission beam? 42. force transmission beam axis? 43 pin seat? 44. bracket? 45 . spigot type force sensor? 46. rod end bearings? 47. fastening nut? 48. connecting pipe? 49. clamps? 50. threaded sleeve? 51. connect pipe? 52. fastening nut 53. bearings? 54. extend shelf? 55. former support channel frame? 56 equilateral angle oblique beams? 57. intermediate connecting channel frame? 58 after connecting channel
Embodiment
Shown in accompanying drawing, further specify the particular content of the present invention and the course of work thereof.
Referring to Fig. 1,2,3, a kind of dynamic calibration device of drum reaction braking checkout stand based on hydraulic servo mainly is made up of hydraulic servo force application apparatus A, buffer damping mechanism B, the C of transfer beam mechanism, force measuring machine D and the E of support frame mechanism.The end of buffer damping mechanism B is fixedly connected on the C of transfer beam mechanism through oscillating bearing 38; The end of force measuring machine D is fixedly connected on the C of transfer beam mechanism through axis pin base 42, and the other end is fixedly connected with the speed reduction unit of drum reaction type brake platform test through stretching out frame 54; The C of transfer beam mechanism is connected on the E of support frame mechanism through globe bearing 39, and the E of support frame mechanism is connected on the frame of brake platform through bolt.Said hydraulic servo force application apparatus A is made up of Hydraulic Station F and force application mechanism G, and the end of force application mechanism G is fixedly connected on the end of buffer damping mechanism B through piston rod 20.Described servo force application apparatus A provides driving force; Through buffer damping mechanism B, the C of transfer beam mechanism and force measuring machine D transfer function to the brake platform speed reduction unit; This power value feeds back to the electrohydraulic servo valve 29 among the force application mechanism G by the force cell that is contained among the force measuring machine D through servoamplifier, and after being adjusted on request by electrohydraulic servo valve 29, control is applied to the power value size on the brake platform speed reduction unit; The closed-loop control system of formation power value; Accurately control is applied to the power value size on the brake platform speed reduction unit, and the power by the curvilinear motion of metric system power value is provided, thereby the ergometry value curve that obtains after the process filter amplification circuit that this proof force value curve and force cell by brake platform itself are recorded compares; Estimate the dynamic response quality of brake tester, realize dynamic calibration.
In drum reaction braking checkout stand, the speed reduction unit and the arm of force are fixed on the same drum shaft, and this device is applied to the power on the brake platform speed reduction unit so, also just have been loaded on the force cell of brake platform itself through the arm of force.As required, this device can provide the power according to the curvilinear motion of metric system power value, and this power can realize through the closed-loop control system of above-mentioned power, and precisely controlled.Ergometry value curve with obtaining after this proof force value curve and the process filter amplification circuit that is recorded by the force cell of brake platform itself compares, and estimates the dynamic response quality of brake tester.
Referring to Fig. 4,5,6,7, said hydraulic servo force application apparatus A is made up of Hydraulic Station F and force application mechanism G, and among the said Hydraulic Station F, motor 1 connects dish 2 through motor and is fixedly connected on the fuel tank cap 5; Hydraulic pump 4 connects on the dish 2 through being bolted to motor, and links to each other with motor 1 through shaft coupling 3; Filtrator 7 is installed on the fuel tank cap 5, and its oil-in links to each other with the oil-out of hydraulic pump 4 through oily steel pipe, and its oil-in is connected with integrated package 8 through oily steel pipe; Surplus valve 9 is through being bolted on the integrated package 8, and integrated package 8 is connected on the fuel tank cap 5 through bolt, and tensimeter 10 links to each other with integrated package 8 through oily steel pipe; One end of retaining valve 11 links to each other with integrated package 8 through oily steel pipe; The other end links to each other with threeway 12 through oily steel pipe; One end of threeway 12 is connected with accumulator 13 through oily steel pipe, and accumulator 13 is installed on the fuel tank cap 5, and the other end of threeway passes through that electrohydraulic servo valve 29 links to each other among flexible pipe and the force application mechanism G; Pouring orifice screen pack 14 is installed on the fuel tank cap 5, and fuel tank cap 5 is connected on the oil box 6 through screw retention; Liquid level thermometer 15 is installed on the leading flank of oil box 6, and drainage plug 16 is installed in the lower end of the leading flank of oil box 6, and attaching type hose adapter 18 is installed in the upper end of oil box 6 trailing flanks.Said force application mechanism G mainly is made up of oil cylinder assembly H, oscillating bearing 33, electrohydraulic servo valve 29 and contiguous block 30; In oil cylinder assembly H; Oil cylinder forward flange 23 is fixedly connected with oil cylinder 28 through thru-bolt 27 with oil cylinder rear flange 30; Afterbody bearing pin Connection Block 32 is fixedly connected with oil cylinder rear flange 31 through bolt, and piston rod 20 is fixedly connected with piston 21 through clamp nut 22 and is assemblied in 28 li of oil cylinders; Afterbody bearing pin Connection Block 32 among the oil cylinder assembly H is connected with oscillating bearing 33 through screw thread; Electrohydraulic servo valve 29 is through being bolted on the contiguous block 30, and the oil-in of contiguous block 30 links to each other with threeway 12 among the Hydraulic Station F through flexible pipe, and the oil-out of contiguous block 30 passes through flexible pipe and links to each other with the oil return opening of oil box 6 among the Hydraulic Station F; The two ends of electrohydraulic servo valve 29 are connected with oil cylinder rear flange 31 with oil cylinder forward flange 23 among the oil cylinder assembly H through steel pipe 26 respectively, 25 pairs of steel pipes 26 of articulated pipe joint 24 and articulated pipe connector screw and the effect of playing oil cylinder forward flange 23 and being connected of oil cylinder rear flange 31 connection and fixing; One end of piston rod 20 links to each other with spring contiguous block 35 among the buffer damping mechanism B through screw thread, and oscillating bearing 33 is connected with middle link slot steelframe 57 bolt among the E of support frame mechanism.
Referring to Fig. 8; Said buffer damping mechanism B mainly is made up of volute spring 34; The two ends of volute spring 34 are separately installed with spring contiguous block 35; Two anti-loosing slices 36 are fixedly connected on the spring contiguous block 35 at volute spring 34 two ends respectively through screw; To prevent volute spring 34 plaies, oscillating bearing 38 is fixedly connected on through M20 clamp nut 37 on the spring contiguous block 35 of volute spring 34 1 ends, and the spring contiguous block of the other end of volute spring 34 35 is fixedly connected through piston rod 20 among M20 clamp nut 37 and the servo force application apparatus A.So the force application mechanism G of servo force application apparatus A and buffer damping mechanism B have just formed one two power linkage, thereby avoided unnecessary mechanical interference and, reduced labour intensity the excessive demand of whole device assembly precision.
Referring to Fig. 9, the said transfer beam C of mechanism is by globe bearing 39, transfer beam axle sleeve 40, and transfer beam 41 is formed with transfer beam axle 42.
Referring to Figure 10, said force measuring machine D is by axis pin base 43, catch 44, pin type force cell 45, M39 spherical plain bearing rod end 46; M39 clamp nut 47, on connect steel pipe 48, clip 49, thread bush 50; Under connect steel pipe 51, M33 clamp nut 52, oscillating bearing 53 stretches out frame 54 and forms.The end of force measuring machine D is connected with transfer beam 41 set bolts among the C of transfer beam mechanism through axis pin base 43; The other end is connected with the reducer casing set bolt of drum reaction braking checkout stand through stretching out frame 54; So pin type side force sensor 45 tests out the power value that is applied on the drum reaction braking checkout stand reducer casing; And feed back to the servo-driver 1 among the servo force application mechanism A to this power value; Servo-driver 1 is adjusted the torque of servomotor 2 more as requested, is applied to the power value on the drum reaction braking checkout stand reducer casing thereby change, and reaches requirement power value size.Thread bush 50 can be adjusted and connect steel pipe 48 and the relative position that is connected steel pipe 51 down, and fastening through clip 49, plays locking effect.
Referring to Figure 11 (a), 11 (b), the described support frame E of mechanism is by preceding support slot steelframe 55, the oblique straining beam 56 of equal angle, and middle link slot steelframe 57, the back connects channel-section steel 58 and forms.Before support slot steelframe 55 through middle link slot steelframe 57 with after be connected channel-section steel 58 connections; Before two oblique straining beams 56 of equal angle are connected through bolt support slot steelframe 55 with after be connected on the channel-section steel 58, the lower end of preceding support slot steelframe 55 with after be connected channel-section steel 58 and pass through bolt and be fixedly connected with the frame of brake platform.The upper end of preceding support slot steelframe 55 is connected with the C of transfer beam mechanism, and middle link slot steelframe 57 is connected with servo force application mechanism A.
Referring to Figure 12; Described is the closed loop power value control system calcspar of Hydrauservo System; The circle on a figure left side is represented one " summing point ", promptly compares input or command signal with force feedback signal, delivers to the error signal that exists in the servoamplifier; Servoamplifier produces a proportional signal of error signal with input to electrohydraulic servo valve, and electrohydraulic servo valve is again according to the action of signal controlling cylinder.
Claims (3)
1. dynamic calibration device of drum reaction braking checkout stand based on hydraulic servo; Mainly be made up of hydraulic servo force application apparatus (A), buffer damping mechanism (B), transfer beam mechanism (C), force measuring machine (D) and support frame mechanism (E), an end of described buffer damping mechanism (B) is fixedly connected in the transfer beam mechanism (C) through oscillating bearing (38); One end of force measuring machine (D) is fixedly connected in the transfer beam mechanism (C) through axis pin base (43), and the other end is fixedly connected with the drum reaction braking checkout stand speed reduction unit through stretching out frame (54); Transfer beam mechanism (C) is connected in the support frame mechanism (E) through globe bearing (39), and support frame mechanism (E) is connected on the frame of brake tester through bolt;
It is characterized in that said hydraulic servo force application apparatus (A) comprises Hydraulic Station (F) and force application mechanism (G) two parts, an end of force application mechanism (G) is fixedly connected on the other end of buffer damping mechanism (B) through piston rod (20); Described hydraulic servo force application apparatus (A) provides driving force; Through buffer damping mechanism (B), transfer beam mechanism (C) and force measuring machine (D) transfer function to the brake tester speed reduction unit; The power value feeds back to the electrohydraulic servo valve (29) in the force application mechanism (G) by the pin type force cell (45) that is contained in the force measuring machine (D) through servoamplifier; After being adjusted on request by electrohydraulic servo valve (29), control is applied to the power value size on the brake tester speed reduction unit, constitutes the closed-loop control system of power value;
Said Hydraulic Station (F) comprising: be fixedly connected on motor (1), filtrator (7), integrated package (8) on the fuel tank cap (5); Accumulator (13) and pouring orifice screen pack (14); Connect the hydraulic pump (4) that dish (2) is gone up, also linked to each other with motor (1) through shaft coupling (3) through being bolted to motor; One end is through the retaining valve (11) that oily steel pipe links to each other with integrated package (8), the other end links to each other with threeway (12) through oily steel pipe, through the tensimeter (10) that oily steel pipe links to each other with integrated package (8), is installed in the liquid level thermometer (15) on the side of oil box (6); Through being bolted to the surplus valve (9) on the integrated package (8); Described fuel tank cap (5) is connected on the oil box (6) through screw retention, and an end of threeway (12) is connected with accumulator (13) through oily steel pipe, and the other end passes through flexible pipe and links to each other with electrohydraulic servo valve (29) in the force application mechanism (G);
Described force application mechanism (G) mainly is made up of oil cylinder assembly (H), oscillating bearing (33), electrohydraulic servo valve (29) and contiguous block (30); Described oil cylinder assembly (H) is connected with middle link slot steelframe (57) bolt in the support frame mechanism (E) through oscillating bearing (33); Described electrohydraulic servo valve (29) is through being bolted on the contiguous block (30); Linking to each other through the threeway (12) in flexible pipe and the Hydraulic Station (F) and the oil return opening of oil box (6) respectively into and out of hydraulic fluid port of contiguous block (30), electrohydraulic servo valve (29) two ends are passed through steel pipe (26) respectively and are connected with oil cylinder rear flange (31) with oil cylinder forward flange (23) in the oil cylinder assembly (H);
Said buffer damping mechanism (B) mainly is made up of volute spring (34); The two ends of volute spring (34) are separately installed with spring contiguous block (35); Two anti-loosing slices (36) are fixedly connected on the spring contiguous block (35) at volute spring (34) two ends respectively through screw; To prevent volute spring (34) play; Oscillating bearing (38) is fixedly connected on through M20 clamp nut (37) on the spring contiguous block (35) of volute spring (34) one ends, and the spring contiguous block (35) of the other end of volute spring (34) is fixedly connected through the middle piston rod (20) of M20 clamp nut (37) and hydraulic servo force application apparatus (A);
Said transfer beam mechanism (C) is made up of transfer beam (41) and transfer beam axle (42); Transfer beam (41) is connected with transfer beam axle (42) interference fit; The two ends of transfer beam axle (42) are connected with globe bearing (39) respectively, and carry out axial location through transfer beam axle sleeve (40);
Said force measuring machine (D) mainly by pin type force cell (45), on connect steel pipe (48) with under be connected steel pipe (51) and form; Last connection steel pipe (48) connects through thread bush (50) with an end that is connected steel pipe (51) down; And it is fastening through clip (49); The other end of last connection steel pipe (48) is threaded with M39 spherical plain bearing rod end (46), and locking through M39 clamp nut (47), and M39 spherical plain bearing rod end (46) is connected with axis pin base (43) through pin type force cell (45); And the catch (44) that is connected on the axis pin base (43) through screw retention carries out axial location and circumferential registration to pin type force cell (45); Under connect steel pipe (51) and be threaded with oscillating bearing (53), and locking through M33 clamp nut (52), oscillating bearing (53) is connected through bolt and stretches out on the frame (54);
2. a kind of dynamic calibration device of drum reaction braking checkout stand according to claim 1 based on hydraulic servo; It is characterized in that; Described oil cylinder assembly (H) is made up of oil cylinder (28) and said piston rod (20); Oil cylinder forward flange (23) is fixedly connected with oil cylinder (28) through thru-bolt (27) with oil cylinder rear flange (31), and afterbody bearing pin Connection Block (32) is fixedly connected with oil cylinder rear flange (31) through bolt, and said piston rod (20) is assemblied in oil cylinder (28) lining; And be fixedly connected with piston (21) through clamp nut (22), an end of said piston rod (20) passes through screw thread and links to each other with spring contiguous block (35) in the buffer damping mechanism (B).
3. a kind of dynamic calibration device of drum reaction braking checkout stand according to claim 1 based on hydraulic servo; It is characterized in that; In the said support frame mechanism (E); Before support slot steelframe (55) be connected channel-section steel (58) connection through indirect channel-section steel frame (57) with the back, two oblique straining beams of equal angle (56) through bolt be connected preceding support slot steelframe (55) with after be connected on the channel-section steel (58); Before support slot steelframe (55) the lower end with after be connected channel-section steel (58) and pass through bolt and be fixedly connected with the frame of brake tester.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102575096A CN101943626B (en) | 2010-08-19 | 2010-08-19 | Dynamic calibration device of counter-force roller braking bench based on hydraulic servo |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102575096A CN101943626B (en) | 2010-08-19 | 2010-08-19 | Dynamic calibration device of counter-force roller braking bench based on hydraulic servo |
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| CN101943626A CN101943626A (en) | 2011-01-12 |
| CN101943626B true CN101943626B (en) | 2012-08-08 |
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| CN2010102575096A Expired - Fee Related CN101943626B (en) | 2010-08-19 | 2010-08-19 | Dynamic calibration device of counter-force roller braking bench based on hydraulic servo |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102768117B (en) * | 2012-07-03 | 2015-04-15 | 浙江江兴汽车检测设备有限公司 | Portable dynamic wheel type calibrator for roller opposite force type automobile brake inspection bench |
| CN105043664B (en) * | 2015-08-21 | 2017-09-08 | 中国工程物理研究院总体工程研究所 | Special high-temperature force sensor demarcating device |
| CN106404401B (en) * | 2016-08-31 | 2019-04-09 | 北京精密机电控制设备研究所 | A kind of servo mechanism zero-bit lock test device and test method |
| CN106908233B (en) * | 2017-03-17 | 2018-11-16 | 西北工业大学 | It is able to achieve the cabin door lock reliability test of varying load load |
| CN109738117B (en) * | 2019-02-01 | 2023-08-15 | 广东省计量科学研究院（华南国家计量测试中心） | Dynamic detection device for roller counter-force type braking inspection bench |
| CN113804458B (en) * | 2021-09-03 | 2023-06-30 | 广州计量检测技术研究院 | Dynamic braking performance calibration device and calibration system for motor vehicle |
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| CN2493470Y (en) * | 2001-08-03 | 2002-05-29 | 关春善 | Rollr counter force type brake test platform tester |
| CN1865880A (en) * | 2006-06-15 | 2006-11-22 | 黄耀民 | Measurement method and device for vehicular reaction type brake tester |
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| CN201724780U (en) * | 2010-08-19 | 2011-01-26 | 吉林大学 | Hydraulic servo-based dynamic calibration device for roller opposite forces type brake tester |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| TWM288685U (en) * | 2005-06-07 | 2006-03-11 | Jen-Yuan Liu | Dynamic inspection and calibration device of brake tester |
| DE102007019381A1 (en) * | 2006-04-26 | 2007-11-22 | Continental Teves Ag & Co. Ohg | Method for dynamic calibration and regulation of a motor vehicle brake system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2493470Y (en) * | 2001-08-03 | 2002-05-29 | 关春善 | Rollr counter force type brake test platform tester |
| CN1865880A (en) * | 2006-06-15 | 2006-11-22 | 黄耀民 | Measurement method and device for vehicular reaction type brake tester |
| CN101382469A (en) * | 2008-10-17 | 2009-03-11 | 广州市计量检测技术研究院 | Dynamic calibration apparatus for portable brake tester |
| CN201724780U (en) * | 2010-08-19 | 2011-01-26 | 吉林大学 | Hydraulic servo-based dynamic calibration device for roller opposite forces type brake tester |
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