CN203132756U - Automobile brake rotary drum running-in and brake performance testing apparatus - Google Patents
Automobile brake rotary drum running-in and brake performance testing apparatus Download PDFInfo
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- CN203132756U CN203132756U CN 201320141417 CN201320141417U CN203132756U CN 203132756 U CN203132756 U CN 203132756U CN 201320141417 CN201320141417 CN 201320141417 CN 201320141417 U CN201320141417 U CN 201320141417U CN 203132756 U CN203132756 U CN 203132756U
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- rotary drum
- break
- automobile brake
- connecting rod
- automobile
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Abstract
The utility model discloses an automobile brake rotary drum running-in and brake performance testing apparatus which belongs to the field of vehicle test and comprises two rollers arranged in parallel. The rollers are aligned in an end-to-end manner, end parts of the rollers are supported on a frame through bearings, a lifting rack is arranged between the two rollers, a center shaft of one of the rollers is connected with a motor through a decelerator, the decelerator is provided with a pressure sensor, and the motor is connected with a frequency converter. With the adoption of the apparatus, brake performances of an automobile rotary drum brake are raised, and working efficiency of brake rotary drum running-in and braking force detection is raised.
Description
Technical field
The utility model relates to a kind of checkout equipment of automobile brake, belongs to the vehicle testing field, especially a kind ofly dispatches from the factory or the automobile of changing the braking rotary drum carries out the device that break-in and car load, braking ability that each is taken turns detect for new car.
Background technology
Braking ability has clear and definite requirement and detection method as the leading indicator that detects in the motor vehicle security performance in the GB21861 standard.
The quality of automobile brake perfrmance is main relevant with automotive brake usefulness, and brake bush is the bigger the better with the contact area of braking rotary drum (dish).Stipulate that in " vehicle repair technical standard " JT3101-81 its contact area should be no less than 5O%, newly dispatch from the factory and brake the automobile of rotary drum automobile or maintenance renewal drum brake, except the position that will adjust friction parts in the detent, mutually outside the gap, also must force break-in, to increase its contact area, improve contact condition, bring into play the braking ability of wheel drag to greatest extent.
At present, the detent break-in of automobile is by setting out on a journey or on frame detent being forced break-in, the damping force test generally uses anti-force rolling brake testing platform or dull and stereotyped braking to carry out the damping force test, the break-in of setting out on a journey is subjected to factor affecting such as road, weather, human pilot mood bigger, and tens kilometers or kilometer up to a hundred travel, spend a large amount of oil plant, time and manpower, and the size of break-in power, running-in effect all can't quantitatively be controlled and can only carry out by rule of thumb, and the frame break-in is to improve one of the most effective most economical means of automobile brake perfrmance.General motor vehicle needs to go up braking rack in addition its braking ability is detected after break-in finishes, and reaches the requirement of dispatching from the factory to determine it.
The utility model content
The technical problems to be solved in the utility model provides the break-in of a kind of automobile brake rotary drum and braking performance detector, utilize this device can brake the rotary drum break-in, guarantee the detent brake efficiency, and can carry out braking ability and detect, improve the work efficiency of the break-in of braking rotary drum, damping force detection greatly.
For solving the problems of the technologies described above, technical solution adopted in the utility model is: the break-in of a kind of automobile brake rotary drum and braking performance detector, it is characterized in that comprising two cylinders that are set up in parallel, the head and the tail alignment of cylinder, the end all by bearings on frame, be provided with lifting jack between two cylinders, the central shaft of one of them cylinder is connected with motor by speed reduction unit, on the described speed reduction unit pressure transducer is installed
Said structure is described further, and described motor is connected with frequency converter.Frequency converter is used for the control motor speed, realizes the detection of many rotating speeds, improves applicability of the present utility model.
Said structure is described further, and the cylinder outside that is connected with speed reduction unit is provided with and can rolls along the retaining that this drum central axis rotates.Described retaining rolls in the cylinder arranged outside, plays the effect that stops wheel, prevents that in the break-in test process, automobile flies away from because drum rotation speed is too high, and the protection automobile is because of the unexpected equipment of going out.
Said structure is described further, is provided with link gear between described lifting jack and retaining roll.Described link gear can connect or linkage assembly for lever, also can realize both interlocks by hydraulic mechanism.
Said structure is described further, described link gear is made up of master connecting-rod, first connecting rod, second connecting rod and third connecting rod, one end and the holder of described master connecting-rod are hinged, the other end is connected with second connecting rod and third connecting rod, one end of first connecting rod and the middle part of master connecting-rod are hinged, the bottom-hinged of the other end and lifting jack, third connecting rod and retaining roll to being rigidly connected.Lifting jack is used for car assisted turnover monitor station, retaining rolls and prevents that automobile from leaving frame during break-in, lifting jack rolls with retaining and links, driving second connecting rod by first connecting rod when lifting jack is fallen rotates around the holder bearing pin downwards, second connecting rod makes third connecting rod center on drum central axis by master connecting-rod and rotates, wherein retaining rolls with the third connecting rod relative position constantly, and this moment retaining rolls rise; In like manner keep off rolling automatically during Lifter Raised and fall, the utility model rolls interlock to lifting jack and retaining by link gear, realizes the lifting that lifting jack and retaining roll.
Said structure is described further, connects by the dynamometry lever between described speed reduction unit and the pressure transducer.Dynamometry lever and pressure transducer have been formed braking force test device in the utility model, that pressure transducer transmits the dynamometry lever, be transformed into electric signal with the proportional power of damping force (or displacement) and be transported to acquisition system and obtain the damping force data, realize the damping force test.
Said structure is described further, and the end face of described lifting jack is the concave face of " V " font.In the utility model, contact with automotive wheel during Lifter Raised, realize the full contact jack-up of automotive wheel, make things convenient for automobile turnover monitor station.
Said structure is described further, and the break-in of described automobile brake rotary drum and braking performance detector are 2 covers, are symmetrical set, and its intermediate roll and automobile double trailing wheel coupling form the braking rotary drum break-in of automobile double trailing wheel and braking ability detection system.This technical scheme is the optimum embodiment of the utility model, and present automobile back wheel braking ability is carried out break-in, detects one and carry out.
The beneficial effect that adopts technique scheme to produce is: in the utility model, two cylinders of available Frequency Converter Control driven by motor rotate, realize simulating road strip spare automobile front and back wheel detent is forced break-in, add damping force size can intuitively determine by the instrument feedback information, damping force with the best is carried out break-in, but and the switching of real-time implementation break-in function and damping force test function.After the break-in, handoff functionality directly carries out the damping force test, to determine its running-in effect, need not mobile motor vehicle.Break-in power, running-in time all can accurately be controlled, and damping force is directly tested, high efficiency.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is structure connection diagram of the present utility model;
Fig. 2 is the structural representation of mechanical stand part among Fig. 1;
Fig. 3 is view under retaining roll-offs in the link gear;
Fig. 4 is that retaining rolls the rise view in the link gear;
Fig. 5 is the data acquisition and processing (DAP) system of damping force;
Fig. 6 is the structural representation (arrow is for advancing the car direction) of the braking rotary drum break-in of automobile double trailing wheel and braking ability detection system;
Wherein: 1, cylinder, 2, lifting jack, 3, speed reduction unit, 4, pressure transducer, 5, motor, 6, frequency converter, 7, retaining rolls, and 8, frame, 9, link gear, 9-1, master connecting-rod, 9-2, first connecting rod, 9-3, second connecting rod, 9-4, third connecting rod, 10, holder, 11, automotive wheel.
Embodiment
1 as can be known with reference to the accompanying drawings, and the utility model is specifically related to the break-in of a kind of automobile brake rotary drum and braking performance detector, and this device is made up of mechanical stand and electric software two parts.Wherein mechanical stand by cylinder 1, lifting jack 2, speed reduction unit 3, motor 5, shelves roll 7, frame 8 forms, left and right sides symmetry, cylinder 1 surface adopts scab technology or groove to handle, the raising attachment coefficient; At reducer shell pressure transducer 4 is housed, is used for the monitoring of break-in power and damping force test.
Electrical system is made up of frequency converter 6, control system, computer software etc.Can adjust drum rotation speed by frequency converter 6, with the break-in speed that adapts to different vehicle, the speed when damping force is tested; Control system finish motor rotation and stop, the collection of lifting jack lifting, damping force signal; Computer software is finished functions such as sequencing control, break-in power and damping force demonstration, report printing, the detection data management of total system.
Fig. 2 is mechanical stage shelf structure synoptic diagram, is provided with automotive wheel 11 at two cylinders 1, and lifting jack 2 leaves automotive wheel 11 surfaces, and under the drive of link gear 9, retaining rolls 7 and rises simultaneously, in the process of break-in, guarantees that retaining rolls 7 and do not leave cylinder 1 surface.
In accompanying drawing 3 and 4, the composition of link gear 9 as can be seen, lifting jack 2 is used for car assisted turnover monitor station, retaining rolls 7 and prevents that automobile from leaving frame 8 during break-in, lifting jack 2 rolls 7 with retaining and links, and drives second connecting rod 9-3 by first connecting rod 9-2 when lifting jack 7 is fallen and rotates around the bearing pin of holder 10 downwards, and second connecting rod 9-3 makes third connecting rod 9-3 rotate around cylinder 1 axle center by master connecting-rod 9-1, wherein retaining rolls 1 constantly with third connecting rod 9-3 relative position, and retaining rolls 1 and rises; Lifting jack 2 in like manner keeps off when rising and rolls 7 and fall automatically, and accompanying drawing 3 and accompanying drawing 4 have provided retaining respectively and rolled 7 view of falling and rising.
The utility model in use, be that two covering devices are placed side by side, two trailing wheels of testing automobile, as shown in Figure 6, automobile along the direction of arrow by driving into frame 8 on the gradient plate, vehicle puts in place, lifting jack 2 is fallen, starting frequency converter 6 operates under the power frequency state, motor 5 drives cylinder 1 by belt pulley, speed reduction unit 3, and cylinder 1 rotates with linear resonance surface velocity 10km/h～15km/h, suitably steps on automobile brake pedal, make braking wipe sheet and the grinding mutually in relative motion of the inner cylinder face of braking rotary drum, its contact area is increased.Its mill platform time can according to circumstances preestablish, and break-in finishes, and enters the damping force test pattern, the Frequency Converter Control cylinder rotates with linear resonance surface velocity 2.5km/h, draw car person and carry out the damping force test according to prompting, test finishes, and judges whether to carry out the test of break-in again according to the result.
The pressure-strain sensor is generally adopted in the collection of damping force, and power supply is+l2V, and the foil gauge pressurized produces voltage signal, and range of signal is 0～24mv.The signal voltage size is directly proportional with pressure, and linear.Because of the electric signal that pressure transducer 4 directly sends more weak, easily distortion in the circuit transmission course.Therefore the signal in pressure transducer 4 outputs needs through amplifying, amplifying signal is imported via the main frame conditioning plate, behind hardware filtering, send into the A/D plate in the computing machine, convert digital signal to by the A/D plate, be converted to voltage signal again by software and be convenient to demonstration directly perceived, the software basis voltage that demarcation is good in advance and the relation between the value are found the solution and are obtained the damping force value.The data acquisition and processing (DAP) of damping force is seen shown in the accompanying drawing 5.
Braking force test device mainly is made up of dynamometry lever and pressure transducer 4.Dynamometry lever one end contacts with pressure transducer 4, the other end is connected with reducer shell, when tested wheel braking or break-in, motor reducer starts, and drives cylinder and rotates, and cylinder 1 driving automobile wheel 11 rotates, when break-in or braking test, draw car person and step on brake pedal, produce the friction force along cylinder surface that stops cylinder to rotate between wheel and the cylinder, this power makes the dynamometry lever will swing around drive roll (or around reducer output shaft, motor shaft) axis with reducer shell.That sensor transmits the dynamometry lever, be transformed into electric signal and be transported to acquisition system and obtain the damping force data with the proportional power of damping force (or displacement).
Claims (8)
1. automobile brake rotary drum break-in and braking performance detector, it is characterized in that comprising two cylinders that are set up in parallel (1), the head and the tail alignment of cylinder (1), the end all by bearings on frame (8), be provided with lifting jack (2) between two cylinders (1), the central shaft of one of them cylinder (1) is connected with motor (5) by speed reduction unit (3), and pressure transducer (4) is installed on the described speed reduction unit (3).
2. automobile brake rotary drum according to claim 1 break-in and braking performance detector is characterized in that described motor (5) is connected with frequency converter (6).
3. automobile brake rotary drum according to claim 1 break-in and braking performance detector are provided with outside the cylinder (1) that it is characterized in that being connected with speed reduction unit (3) and can roll (7) along the retaining that this drum central axis rotates.
4. automobile brake rotary drum according to claim 3 break-in and braking performance detector is characterized in that described lifting jack (2) and retaining roll to be provided with link gear (9) between (7).
5. automobile brake rotary drum according to claim 4 break-in and braking performance detector, it is characterized in that described link gear (9) is by master connecting-rod (9-1), first connecting rod (9-2), second connecting rod (9-3) and third connecting rod (9-4) are formed, one end of described master connecting-rod (9-1) and holder (10) are hinged, the other end is connected with second connecting rod (9-3) and third connecting rod (9-4), the middle part of one end of first connecting rod (9-2) and master connecting-rod (9-1) is hinged, the bottom-hinged of the other end and lifting jack (2), third connecting rod (9-4) rolls (7) for being rigidly connected with retaining.
6. automobile brake rotary drum according to claim 1 break-in and braking performance detector is characterized in that connecting by the dynamometry lever between described speed reduction unit (3) and the pressure transducer (4).
7. automobile brake rotary drum according to claim 1 break-in and braking performance detector is characterized in that the end face of described lifting jack (2) is the concave face of " V " font.
8. according to the break-in of any described automobile brake rotary drum and braking performance detector among the claim 1-7, it is characterized in that the break-in of described automobile brake rotary drum and braking performance detector are 2 covers, be symmetrical set, its intermediate roll (1) and automobile double trailing wheel coupling form the braking rotary drum break-in of automobile double trailing wheel and braking ability detection system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320141417 CN203132756U (en) | 2013-03-26 | 2013-03-26 | Automobile brake rotary drum running-in and brake performance testing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320141417 CN203132756U (en) | 2013-03-26 | 2013-03-26 | Automobile brake rotary drum running-in and brake performance testing apparatus |
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| Publication Number | Publication Date |
|---|---|
| CN203132756U true CN203132756U (en) | 2013-08-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320141417 Expired - Fee Related CN203132756U (en) | 2013-03-26 | 2013-03-26 | Automobile brake rotary drum running-in and brake performance testing apparatus |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103196612A (en) * | 2013-03-26 | 2013-07-10 | 石家庄华燕交通科技有限公司 | Automobile brake drum grinding and braking performance detection device |
| CN105136481A (en) * | 2015-09-30 | 2015-12-09 | 广州番禺宏昌机电设备制造有限公司 | Motorcycle acceleration test device |
| CN106053101A (en) * | 2016-08-11 | 2016-10-26 | 成都弥荣科技发展有限公司 | Lifting device used for automobile brake inspection |
| CN106226095A (en) * | 2016-08-11 | 2016-12-14 | 成都弥荣科技发展有限公司 | A kind of automobile braking check-out console structure |
-
2013
- 2013-03-26 CN CN 201320141417 patent/CN203132756U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103196612A (en) * | 2013-03-26 | 2013-07-10 | 石家庄华燕交通科技有限公司 | Automobile brake drum grinding and braking performance detection device |
| CN103196612B (en) * | 2013-03-26 | 2014-12-10 | 石家庄华燕交通科技有限公司 | Automobile brake drum grinding and braking performance detection device |
| CN105136481A (en) * | 2015-09-30 | 2015-12-09 | 广州番禺宏昌机电设备制造有限公司 | Motorcycle acceleration test device |
| CN106053101A (en) * | 2016-08-11 | 2016-10-26 | 成都弥荣科技发展有限公司 | Lifting device used for automobile brake inspection |
| CN106226095A (en) * | 2016-08-11 | 2016-12-14 | 成都弥荣科技发展有限公司 | A kind of automobile braking check-out console structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130814 Termination date: 20160326 |
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| CF01 | Termination of patent right due to non-payment of annual fee |