CN107655705A - A kind of automobile brake test bed wheelbase regulating device - Google Patents
A kind of automobile brake test bed wheelbase regulating device Download PDFInfo
- Publication number
- CN107655705A CN107655705A CN201711096547.6A CN201711096547A CN107655705A CN 107655705 A CN107655705 A CN 107655705A CN 201711096547 A CN201711096547 A CN 201711096547A CN 107655705 A CN107655705 A CN 107655705A
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- power transmission
- transmission shaft
- casing
- shaft
- braking platform
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Regulating Braking Force (AREA)
Abstract
The invention discloses a kind of automobile brake test bed wheelbase regulating device, including preceding braking platform, platform, shaft distance adjusting mechanism with two and hydraulic distance-regulating device are braked afterwards；The shaft distance adjusting mechanism with two is made up of power transmission shaft, gear, casing, driving-chain, universal joint etc., and it is symmetrically distributed in the both sides of testing stand, the mechanism is realized the transmission of torque and moved back and forth by the splined shaft and hydraulic distance-regulating device of inside and outside cooperation, to realize the regulation of wheelbase；The transmission of forward and backward braking platform power is realized by the connection of sprocket wheel and chain.The present invention can change automobile brake test bed wheelbase to adapt to the detection and test of different wheelbase automobile brake perfrmances, and easy to adjust, and adjustable range is big.
Description
Technical field
The present invention relates to technical field of automobile detection, and in particular to a kind of automobile brake test bed wheelbase regulating device.
Background technology
Roller brake tester can be divided into two kinds of single axle and twin axle by the detectable number of axle simultaneously, and twin axle roller
Brake tester can typically test the braking ability of all wheels of for-wheel vehicle simultaneously, and can be according to the wheelbase of tested vehicle
Adjust the distance between forward and backward roller group.Disclosed patent document：03232856.7《Testing experimental table for vehicle braking performance》,
The power between the roller group of front and rear braking platform is transmitted using chain, its shortcoming is：Chain conveyer is in conditions such as high speed, racings
Under, phenomena such as easily occurring to jump tooth, de- tooth, abrasion；In addition, when test vehicle wheelbase changes, the testing stand needs to increase
Subtract the chain joint number connected between forward and backward stand or increase tensioning apparatus and carry out passing power, process is cumbersome, is unfavorable for the inspection of automobile
Survey.Disclosed patent document：201110066757.7《A kind of reaction type brake tester and its control method》, using auxiliary cylinder
Travel mechanism controls position of the auxiliary cylinder in frame to adjust the wheelbase between major and minor roller, and its shortcoming is：Wheelbase was adjusted
Journey is complicated, limited adjustment range.
The content of the invention
The invention provides a kind of automobile brake test bed wheelbase regulating device, to solve existing brake tester wheelbase
The defects of regulation process that occurs during regulation is complicated, stability is poor, limited adjustment range, makes automobile brake test bed wheelbase
It is easy to adjust quick, and adjustable range is wide.
In order to solve the above technical problems, the technical solution adopted in the present invention is：
A kind of automobile brake test bed wheelbase regulating device, including preceding braking platform and rear braking platform, preceding braking platform
Connected between rear braking platform by shaft distance adjusting mechanism with two；The shaft distance adjusting mechanism with two includes being centrosymmetric the first of setting
Shaft distance adjusting mechanism with two and the second shaft distance adjusting mechanism with two；
Braking platform includes roll left cylinder group and right roller group before described；
The cylinder group that rolls left includes front and rear the first roller and second tin roller be arrangeding in parallel；The end of the first roller wherein one end
Portion is provided with sprocket wheel, and the sprocket wheel is connected together by chain with the sprocket wheel of second tin roller homonymy end set；First roller it is another
One end is connected by reel chain with the first shaft distance adjusting mechanism with two；The moment of torsion and rotating speed for gathering roller are additionally provided with second tin roller
The integral type torque speed sensor of signal；
The right roller group and a group that rolls left are centrosymmetric setting；First roller right part of right roller group is fixed
The sprocket wheel of connection is connected by short chain with the second shaft distance adjusting mechanism with two；
Braking platform is centrosymmetric setting with the preceding braking platform after described；
Also include the roll-setting gear of distance between braking platform and rear braking platform before being used to adjust, and for making to be examined
Vehicle drives into and rolled away from the lifting device of testing stand.
According to such scheme, one end of the first power transmission shaft of the shaft distance adjusting mechanism with two is fixed with engaged with short chain
One sprocket wheel, the other end extend into the first casing and are connected by bearing with the first casing, and the first power transmission shaft is located at the first casing
Interior part is fixedly connected with first bevel gear；The direction vertical with the first power transmission shaft is provided with hollow second driving shaft, and second
Power transmission shaft is connected in the first casing by bearing, and the part that second driving shaft is located in the first casing is fixedly connected with and first
The second bevel gear of bevel gear engagement, the inner surface of second driving shaft are additionally provided with internal spline；One end of 3rd power transmission shaft stretches into
Connected in second driving shaft in one casing and by the internal spline of the external splines and second driving shaft that are arranged on its outer surface, separately
One end is connected to one end of the 4th power transmission shaft by universal joint；The other end of 4th power transmission shaft extend into the second casing and passed through
Bearing is connected with the second casing, and the part that the 4th power transmission shaft is located in the second casing is fixedly connected with third hand tap gear；With the 4th
The vertical direction of power transmission shaft is provided with the 5th power transmission shaft, and the 5th power transmission shaft is set parallel to the first power transmission shaft, and its one end extend into
It is connected in two casings and by bearing with the second casing, the part that the 5th power transmission shaft is located in the second casing is fixedly connected with and the
4th bevel gear of third hand tap gear engagement, the other end of the 5th power transmission shaft are fixedly connected with the second spur gear；6th power transmission shaft is put down
Row is set in the 5th power transmission shaft, and its one end is fixedly connected with the first spur gear engaged with the second spur gear, and the other end, which is fixed, to be connected
The second sprocket wheel engaged with reel chain is connected to, is additionally provided with the 6th power transmission shaft for braking platform before connecting and cutting off and rear braking
The electromagnetic clutch of power transmission between platform.
According to such scheme, the oil inlet of the hydraulic cylinder of the roll-setting gear is connected to the first hydraulic fluid port of reversal valve, hydraulic pressure
The oil-out of cylinder is connected to the second hydraulic fluid port of reversal valve, and the 4th hydraulic fluid port of reversal valve is connected to fuel tank, the 3rd hydraulic fluid port of reversal valve
The oil-out of choke valve is connected to, the oil inlet of choke valve is connected to the oil inlet of overflow valve and the oil-out of hydraulic pump simultaneously,
The oil-out of overflow valve is connected to fuel tank, and the oil inlet of hydraulic pump is connected to the oil-out of filter, and the oil inlet of filter connects
It is connected to fuel tank.
Compared with prior art, the beneficial effects of the invention are as follows：Automobile brake test bed wheelbase can be changed to adapt to not
With the detection and test of wheelbase automobile brake perfrmance, and it is easy to adjust, adjustable range is big.
Brief description of the drawings
Fig. 1 is the general structure schematic diagram of the present invention；
Fig. 2 is the structural representation of shaft distance adjusting mechanism with two in the present invention；
Fig. 3 is the hydraulic-driven principle schematic of roll-setting gear in the present invention.
Embodiment
The embodiment of the present invention is described further below in conjunction with the accompanying drawings, each label is interpreted as in figure：1-
Preceding braking platform, the rollers of 2- first, 3- second tin rollers, 4- lifting devices, 5- chains, the shaft distance adjusting mechanism with two of 601- first, 602-
Second shaft distance adjusting mechanism with two, the sprocket wheels of 61- first, 62- short chains, the power transmission shafts of 63- first, 64- first bevel gears, 65- second are bored
Gear, the casings of 66- first, 67- second driving shafts, the power transmission shafts of 68- the 3rd, 69- universal joints, the power transmission shafts of 610- the 4th, 611-
Two casings, the power transmission shafts of 612- the 5th, the spur gears of 613- first, 614- third hand tap gears, the bevel gears of 615- the 4th, 616- second are straight
Gear, the power transmission shafts of 617- the 6th, the sprocket wheels of 618- second, 619- reel chains, 620- electromagnetic clutch, 7- integral type moments of torsion rotating speed pass
Sensor, 8- roll-setting gears, 81- hydraulic cylinders, 82- reversal valves, 83- choke valves, 84-- overflow valves, 85- hydraulic pumps, 86- filters,
87 fuel tanks, platform is braked after 9-.
The automobile brake test bed main braking platform 1 including before of the present invention brakes the two parts of platform 9, preceding system with rear
Connected between moving platform 1 and rear braking platform 9 by left side with the shaft distance adjusting mechanism with two on right side, the first axle in left side is away from regulation machine
Structure 601 and second shaft distance adjusting mechanism with two 602 on right side are centrosymmetric setting.
One end of first power transmission shaft 63 of the shaft distance adjusting mechanism with two is fixed with the first sprocket wheel 61 engaged with short chain 62,
The other end extend into the first casing 66 and is connected by bearing with the first casing 66 and the part in the first casing 66 is fixed
It is connected with first bevel gear 64.The direction vertical with the first power transmission shaft 63 is provided with hollow second driving shaft 67, second driving shaft
67 parts being connected to by bearing in the first casing 66 and in the first casing 66 are fixedly connected with and the end of the first power transmission shaft 63
The second bevel gear 65 that the first bevel gear 64 in portion engages, the inner surface of second driving shaft 67 are additionally provided with internal spline.3rd transmission
The outer surface of axle 68 is provided with external splines, in the second driving shaft 67 that its one end is stretched into the first casing 66 and passes through external splines and the
The internal spline connection of two power transmission shafts 67, the other end are connected to one end of the 4th power transmission shaft 610, the 4th power transmission shaft by universal joint 69
610 other end extend into the second casing 611 and is connected by bearing with the second casing 611 and in the second casing 611
Part is fixedly connected with third hand tap gear 614.The direction vertical with the 4th power transmission shaft 610 is provided with the 5th power transmission shaft 612, and the 5th passes
Moving axis 612 is set parallel to the first power transmission shaft 63, and its one end is extend into the second casing 611 and by bearing and the second casing
Part in 611 connections and the second casing 611 is fixedly connected with nibbles with the third hand tap gear 614 of the end of the 4th power transmission shaft 610
The 4th bevel gear 615 closed, the other end are fixedly connected with the second spur gear 616.6th power transmission shaft 617 is parallel to the 5th power transmission shaft
612 are set, and its one end is fixedly connected with the first spur gear engaged with the second spur gear 612 of the end of the 5th power transmission shaft 612
613, the other end is fixedly connected with the second sprocket wheel 618 engaged with reel chain 619, be additionally provided with the 6th power transmission shaft 617 electromagnetism from
Clutch 620.
Braking platform 1 includes roll left cylinder group and right roller group before described.
The cylinder group that rolls left includes front and rear the first roller 2 and second tin roller 3 be arrangeding in parallel, the end on the right side of two rollers
Sprocket wheel has been fixedly connected with it, the sprocket wheel on the right side of front and rear roller is connected together by the directly engagement of chain 5.Positioned at the second of rear side
The right-hand member of roller 3 is additionally provided with integral type torque speed sensor 7, for gathering the moment of torsion and tach signal of roller.Positioned at front side
The left part of the first roller 2 be fixedly connected with sprocket wheel, the sprocket wheel by reel chain 619 be directly engaged against the first axle in left side away from
Second sprocket wheel 618 of the end of the 6th power transmission shaft 617 of governor motion 601.Also include being arranged on roll left cylinder group bottom and testing stand
Lifting device 4 between frame, for automobile brake test bed lifting, make to be driven into and rolled away from testing stand by inspection vehicle.
The right roller group and the cylinder group center symmetric setting that rolls left, differ only in the right side of the first roller 2 of right roller group
The sprocket wheel of side is directly engaged against the of the end of the first power transmission shaft 63 of second shaft distance adjusting mechanism with two 602 on right side by short chain 62
One sprocket wheel 61.
Braking platform 9 and the preceding braking center symmetric setting of platform 1 after described.
The front side for braking platform 9 afterwards is additionally provided with roll-setting gear 8, the oil inlet connection of the hydraulic cylinder 81 of the roll-setting gear 8
To the first hydraulic fluid port of reversal valve 82, the oil-out of hydraulic cylinder 81 is connected to the second hydraulic fluid port of reversal valve 82, the piston of hydraulic cylinder 81
Bar brakes platform 9 after being connected to, and flexible by piston rod brakes the movable of platform 9 after driving.The of reversal valve 82
Four hydraulic fluid ports are connected to fuel tank 87, and the 3rd hydraulic fluid port of reversal valve 82 is connected to the oil-out of choke valve 83, the oil inlet of choke valve 83
The oil inlet of overflow valve 84 and the oil-out of hydraulic pump 85 are connected to simultaneously, the oil-out of overflow valve 84 is connected to fuel tank 87, liquid
The oil inlet of press pump 85 is connected to the oil-out of filter 86, and the oil inlet of filter 86 is connected to fuel tank 87.
, it is necessary to be adjusted according to the wheelbase of tested vehicle before vehicle carries out brake function test on automobile brake test bed
The distance between forward and backward braking platform.Start the roll-setting gear 8 of automobile brake test bed centre, hydraulic pump 85 is from fuel tank 87
Oil suction, fluid enters the oil inlet of hydraulic pump 85 by filter 86, when fluid enters pressure oil circuit from the oil-out of hydraulic pump 85
Afterwards, choke valve 83, reversal valve 82 are passed sequentially through into the oil inlet of hydraulic cylinder 81, now the fluid of the oil-out of hydraulic cylinder 81 is through changing
Fuel tank 87 is flow back to valve 82 and oil return pipe, and braking platform 9 rearward moves after the piston rod in hydraulic cylinder 81 promotes, installed in examination
The second casing 611 for testing stand bottom also moves with the movement of test-bed, while passes through internal spline and external splines phase interworking
The power transmission shaft 68 of second driving shaft 67 and the 3rd of conjunction moves axially.When wheelbase is adjusted to correct position, stop roll adjustment dress
Put 8 operation.After wheelbase regulation is suitable, vehicle can be driven into and operated by driving wheel of vehicle groups of drive rolls, and to vehicle
Braking ability detected, wherein the power transmission shaft 68 of second driving shaft 67 and the 3rd, which passes through internal spline and external splines and cooperated, passes
The torque of forward and backward braking platform is passed, the electromagnetic clutch 620 on the 6th power transmission shaft 617 is used to connecting and cutting off preceding system
Power transmission between moving platform 1 and rear braking platform 9, the braking ability of convenient four wheels for detecting automobile simultaneously.Wheelbase
Universal joint 69 in governor motion is used for the 3rd power transmission shaft 68 and the 4th power transmission shaft to be changed in axle center angle by vibration
Passing power between 610.
Similarly, roll-setting gear 8 also can be reversely adjusted, platform 9 is braked after making and is moved forward, realizes the reverse regulation of wheelbase.
Claims (3)
- A kind of 1. automobile brake test bed wheelbase regulating device, it is characterised in that：Including preceding braking platform (1) and rear braking platform (9), connected between preceding braking platform (1) and rear braking platform (9) by shaft distance adjusting mechanism with two；The shaft distance adjusting mechanism with two includes Be centrosymmetric the first shaft distance adjusting mechanism with two (601) and the second shaft distance adjusting mechanism with two (602) of setting；Braking platform (1) includes roll left cylinder group and right roller group before described；The cylinder group that rolls left includes front and rear the first roller (2) and second tin roller (3) be arrangeding in parallel；First roller (2) wherein one The end at end is provided with sprocket wheel, and the sprocket wheel is connected by chain (5) with the sprocket wheel of second tin roller (3) homonymy end set；First rolling The other end of cylinder (2) is connected by reel chain (619) with the first shaft distance adjusting mechanism with two (601)；Second tin roller is additionally provided with use on (3) In the moment of torsion of collection roller and the integral type torque speed sensor (7) of tach signal；The right roller group and a group that rolls left are centrosymmetric setting；The first roller (2) right part of right roller group is fixed The sprocket wheel of connection is connected by short chain (62) with the second shaft distance adjusting mechanism with two (602)；Braking platform (9) is centrosymmetric setting with the preceding braking platform (1) after described；Also include the roll-setting gear (8) of distance between braking platform (1) and rear braking platform (9) before being used to adjust, and be used for Make the lifting device (4) for being driven into and being rolled away from testing stand by inspection vehicle.
- A kind of 2. automobile brake test bed wheelbase regulating device according to claim 1, it is characterised in that：The wheelbase is adjusted The one end for saving the first power transmission shaft (63) of mechanism is fixed with the first sprocket wheel (61) engaged with short chain (62), and the other end is extend into It is connected in first casing (66) and by bearing with the first casing (66), the first power transmission shaft (63) is located in the first casing (66) Part is fixedly connected with first bevel gear (64)；The direction vertical with the first power transmission shaft (63) is provided with hollow second driving shaft (67), second driving shaft (67) is connected in the first casing (66) by bearing, and second driving shaft (67) is located at the first casing (66) part in is fixedly connected with the second bevel gear (65) engaged with first bevel gear (64), second driving shaft (67) it is interior Surface is additionally provided with internal spline；In the second driving shaft (67) that one end of 3rd power transmission shaft (68) is stretched into the first casing (66) and lead to Cross and be arranged on the external splines of its outer surface and be connected with the internal spline of second driving shaft (67), the other end passes through universal joint (69) and connected To one end of the 4th power transmission shaft (610)；The other end of 4th power transmission shaft (610) extend into the second casing (611) and passes through axle Hold and be connected with the second casing (611), the part that the 4th power transmission shaft (610) is located in the second casing (611) is fixedly connected with the 3rd Bevel gear (614)；The direction vertical with the 4th power transmission shaft (610) is provided with the 5th power transmission shaft (612), and the 5th power transmission shaft (612) is flat Row is set in the first power transmission shaft (63), and its one end extend into the second casing (611) and connected by bearing and the second casing (611) Connect, the part that the 5th power transmission shaft (612) is located in the second casing (611) is fixedly connected with what is engaged with third hand tap gear (614) 4th bevel gear (615), the other end of the 5th power transmission shaft (612) are fixedly connected with the second spur gear (616)；6th power transmission shaft (617) set parallel to the 5th power transmission shaft (612), it is straight that its one end is fixedly connected with first engaged with the second spur gear (612) Gear (613), the other end are fixedly connected with the second sprocket wheel (618) engaged with reel chain (619), on the 6th power transmission shaft (617) It is additionally provided with the electromagnetic clutch for power transmission between braking platform (1) before connecting and cutting off and rear braking platform (9) (620)。
- A kind of 3. automobile brake test bed wheelbase regulating device according to claim 1, it is characterised in that：The roll adjustment dress The oil inlet for putting the hydraulic cylinder (81) of (8) is connected to the first hydraulic fluid port of reversal valve (82), and the oil-out of hydraulic cylinder (81) is connected to Second hydraulic fluid port of reversal valve (82), the 4th hydraulic fluid port of reversal valve (82) are connected to fuel tank (87), the 3rd hydraulic fluid port of reversal valve (82) The oil-out of choke valve (83) is connected to, the oil inlet of choke valve (83) is connected to the oil inlet and hydraulic pressure of overflow valve (84) simultaneously The oil-out of pump (85), the oil-out of overflow valve (84) are connected to fuel tank (87), and the oil inlet of hydraulic pump (85) is connected to filtering The oil-out of device (86), the oil inlet of filter (86) are connected to fuel tank (87).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711096547.6A CN107655705A (en) | 2017-11-09 | 2017-11-09 | A kind of automobile brake test bed wheelbase regulating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711096547.6A CN107655705A (en) | 2017-11-09 | 2017-11-09 | A kind of automobile brake test bed wheelbase regulating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107655705A true CN107655705A (en) | 2018-02-02 |
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ID=61121128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711096547.6A Pending CN107655705A (en) | 2017-11-09 | 2017-11-09 | A kind of automobile brake test bed wheelbase regulating device |
Country Status (1)
| Country | Link |
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| CN (1) | CN107655705A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112629875A (en) * | 2020-12-02 | 2021-04-09 | 中国煤炭科工集团太原研究院有限公司 | Anti-explosion rubber-tyred vehicle brake test bed for simulating long downhill |
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|---|---|---|---|---|
| CN2625200Y (en) * | 2003-06-17 | 2004-07-14 | 武汉大学 | Wheel base adjustable automobile |
| CN2689178Y (en) * | 2003-01-15 | 2005-03-30 | 四川工业学院 | Testing experimental table for vehicle braking performance |
| US20110083499A1 (en) * | 2009-10-09 | 2011-04-14 | Dynojet Research, Inc. | Adjustable belt dynamometer |
| CN103226067A (en) * | 2013-04-22 | 2013-07-31 | 庞抗美 | Detection device and detection method for simulated road test of motor vehicle |
| CN208140373U (en) * | 2017-11-09 | 2018-11-23 | 西华大学 | A kind of automobile brake test bed wheelbase regulating device |
-
2017
- 2017-11-09 CN CN201711096547.6A patent/CN107655705A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2689178Y (en) * | 2003-01-15 | 2005-03-30 | 四川工业学院 | Testing experimental table for vehicle braking performance |
| CN2625200Y (en) * | 2003-06-17 | 2004-07-14 | 武汉大学 | Wheel base adjustable automobile |
| US20110083499A1 (en) * | 2009-10-09 | 2011-04-14 | Dynojet Research, Inc. | Adjustable belt dynamometer |
| CN103226067A (en) * | 2013-04-22 | 2013-07-31 | 庞抗美 | Detection device and detection method for simulated road test of motor vehicle |
| CN208140373U (en) * | 2017-11-09 | 2018-11-23 | 西华大学 | A kind of automobile brake test bed wheelbase regulating device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112629875A (en) * | 2020-12-02 | 2021-04-09 | 中国煤炭科工集团太原研究院有限公司 | Anti-explosion rubber-tyred vehicle brake test bed for simulating long downhill |
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Application publication date: 20180202 |