CN104089783B - A kind of test device of wedge shape braking dilator assembly - Google Patents

A kind of test device of wedge shape braking dilator assembly Download PDF

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CN104089783B
CN104089783B CN201410302330.6A CN201410302330A CN104089783B CN 104089783 B CN104089783 B CN 104089783B CN 201410302330 A CN201410302330 A CN 201410302330A CN 104089783 B CN104089783 B CN 104089783B
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carrier gas
base plate
plate
test
testing
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CN104089783A (en
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郭斌
薛雪亮
潘飞文
刘慧平
陆艺
罗哉
范伟军
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Radium Intelligence Science And Technology Co Ltd Is Irrigated In Hangzhou
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Radium Intelligence Science And Technology Co Ltd Is Irrigated In Hangzhou
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Abstract

The invention discloses the test device of a kind of wedge shape braking dilator assembly, including support, detent mechanism, load maintainer, mechanism for testing, support includes one piece of test base plate, base plate upper end face is symmetrical is fixedly installed left riser and right riser in test;Support central authorities are provided with circular hole;Detent mechanism includes boss type positioning seat, spacing connecting rod base, spacing connecting rod, compressor arm, compression cushion block, hold-down cylinder joint, compression cylinder;Load maintainer includes loading cylinder mounting plate, adds carrier gas cylinder connecting plate, adds carrier gas cylinder connecting rod, load bar, loading cylinder head, S-type force sensor, adds carrier gas cylinder;Mechanism for testing includes that the left mechanism for testing that is symmetrical set relative to boss type positioning seat and right mechanism for testing, tested wedge shape braking dilator are clamped between left mechanism for testing and right mechanism for testing.The wedge shape braking dilator assembly test device to test braking dilator assembly brake force of the present invention transmits ratio and self-regulated functional test efficiency and measuring accuracy is higher.

Description

A kind of test device of wedge shape braking dilator assembly
Technical field
The present invention relates to the detection field of automobile brake dilator assembly, the test device of a kind of wedge shape braking dilator assembly.
Background technology
Automobile brake dilator service behaviour is directly connected to traffic safety, and major traffic accidents are often relevant with braking system faults, and therefore automobile brake perfrmance is the important leverage of traffic safety.Wedge shape braking dilator is the important component part of automobile key-operated brake, and the structure of key-operated brake can obtain understanding from a kind of key-operated brake of the disclosure of the invention of Chinese Patent Application No. CN201120470116.3;The main parts size of key-operated brake includes back-plate, be arranged symmetrically on back-plate two-way dilator, it is positioned at two-way dilator one end and support end is provided with retainer spring, friction plate is had by rivet on the brake-shoe of left and right, the external arc of the support end of left and right brake-shoe coordinates with the Inner arc on back-plate respectively, brake-shoe can only the boss Inner arc on a base plate rotate, it is impossible to left and right vibration;The structure of key-operated brake assembly can obtain understanding from a kind of key-operated brake assembly of the disclosure of the invention of Chinese Patent Application No. CN201120470116.3;Key-operated brake assembly, as the actuator of brake system of car, is braking comfortableness and the key factor of safety, and wedge shape braking dilator service behaviour is to evaluate the important indicator of automobile brake perfrmance.
Wedge shape braking dilator refers in key-operated brake work process, transmission brake force promotes brake-shoe to open and is braked, and the gap width being automatically adjusted between brake-shoe and back-plate after end of braking, it is allowed to keep accurate brake clearance, eliminates brake-shoe and dawdle the functional entity of phenomenon.So, can wedge shape braking dilator normal delivery brake force realize being directly connected to braking comfortableness and the safety of vehicle from conditioning function.Owing to lacking suitable wedge shape braking dilator test device and method at present, exist test brake force transmission than and testing efficiency from conditioning function and the relatively low deficiency of measuring accuracy, therefore, design a kind of wedge shape testing brake force transmission ratio higher with self-regulated functional efficiency and precision and brake dilator assembly function test method and device, become problem demanding prompt solution.
The deficiency existed for prior art, proposes the present invention.
Summary of the invention
Test wedge shape braking dilator brake force for overcoming above-mentioned prior art to exist transmits the deficiency that ratio is relatively low with self-regulated functional test efficiency and measuring accuracy, and the present invention provides a kind of wedge shape testing wedge shape braking dilator brake force transmission ratio higher with self-regulated functional test efficiency and measuring accuracy to brake expander function test device.
Present invention provide the technical scheme that a kind of wedge shape braking dilator assembly test device, including support, detent mechanism, load maintainer, mechanism for testing, support includes one piece of test base plate, base plate upper end face is symmetrical is fixedly installed left riser and right riser in test;Support central authorities are provided with circular hole;Left riser is respectively fixed with the outside of right riser and tests the reinforcement gusset that base plate upper end face is connected.Detent mechanism includes boss type positioning seat, spacing connecting rod base, spacing connecting rod, compressor arm, compression cushion block, hold-down cylinder joint, compression cylinder;Boss type positioning seat is fixed on the central authorities of test base plate, and matches with the central circular hole of test base plate;Spacing connecting rod base is fixed on the test base plate upper surface at boss type positioning seat rear;Limiting cylinder is by being fixed on the test base plate lower surface at spacing connecting rod base rear, and the test base plate of limiting cylinder cylinder installation site has through hole;Compressor arm is articulated with hold-down cylinder joint, and spacing connecting rod two ends are hinged with spacing connecting rod base and compressor arm stage casing respectively, and the other end of compressor arm is provided with compression cushion block;Load maintainer includes loading cylinder mounting plate, adds carrier gas cylinder connecting plate, adds carrier gas cylinder connecting rod, load bar, loading cylinder head, S-type force sensor, adds carrier gas cylinder;Add carrier gas cylinder to be fixed on loading cylinder mounting plate, load cylinder mounting plate and be fixed on test base plate lower surface by adding carrier gas cylinder connecting rod, add carrier gas cylinder connecting plate and have four through holes, loading cylinder mounting plate edge adds carrier gas cylinder connecting rod and slides up and down, add carrier gas cylinder connecting plate central authorities upper surface and connect load bar, adding carrier gas cylinder connecting plate lower surface and be connected with S-type force sensor by loading cylinder head, the S-type force sensor other end is connected with cylinder push-rod;nullMechanism for testing includes the left mechanism for testing that is symmetrical set relative to boss type positioning seat and right mechanism for testing,Wherein,Left mechanism for testing includes the left rail plate being fixedly installed on test base plate upper end face,Left rail plate is provided with the left sliding floor that can move left and right slip,Left pressure transducer connecting plate is connected with left sliding floor by sensor gusset,Left force transducer is arranged on left pressure transducer connecting plate,Left force transducer is connected with left slide head,The other end of left slide head is connected with the left spring with spring housing,The other end of left spring props up left riser,The another side of left pressure transducer connecting plate is equipped with left measuring head,Left dislocation contact is fixed on left sliding floor side,Left dislocation sensor holder is connected to the left test base plate upper surface on rear side of left rail plate,Left dislocation sensor is arranged on left dislocation sensor holder,Measure end to be connected with left dislocation contact;Right mechanism for testing includes the right rail plate being fixedly installed on test base plate upper end face, right rail plate is provided with the right sliding floor that can move left and right slip, right pressure transducer connecting plate is connected with right sliding floor by sensor gusset, right force transducer is arranged on right pressure transducer connecting plate, right force transducer is connected with right slide head, the other end of right slide head is connected with the right spring with spring housing, the other end of right spring props up right riser, the another side of right pressure transducer connecting plate is equipped with right measuring head, right Displacement Contact is fixed on right sliding floor side, right displacement transducer seat is connected to the right test base plate upper surface on rear side of right rail plate, right displacement transducer is arranged on right displacement transducer seat, measure end to be connected with right Displacement Contact;Tested wedge shape braking dilator is clamped between left measuring head and right measuring head.
The invention has the beneficial effects as follows:
The wedge shape braking dilator assembly test device to test braking dilator assembly brake force of the present invention transmits ratio and self-regulated functional test efficiency and measuring accuracy is higher.Detent mechanism is fixing brakes dilator assembly quick and precisely, safety simple to operate.Mechanism for testing is simple and practical, have left dislocation sensor and right displacement transducer can two-way detection braking dilator assembly from conditioning function, displacement transducer can accurately obtain shift value;There is left force transducer and the power that braking dilator assembly is transmitted can accurately be measured by right force transducer.Load maintainer simple in construction precision is high, and S-type force sensor can accurately measure the size of institute's loading force.The power that the power recorded by mechanism for testing and load maintainer are recorded can calculate the brake force transmission ratio of braking dilator assembly.
Accompanying drawing explanation
When considered in conjunction with the accompanying drawings, by referring to detailed description below, can more completely be more fully understood that the present invention and easily learn the advantage that many of which is adjoint, but accompanying drawing described herein is used for providing a further understanding of the present invention, constitute the part of the present invention, the schematic description and description of the present invention is used for explaining the present invention, is not intended that inappropriate limitation of the present invention, wherein:
Fig. 1 is the full view of the present invention;
Fig. 2 is the front view of the present invention;
Fig. 3 is the left view of the present invention;
Fig. 4 is the top view of the present invention.
Detailed description of the invention
Understandable for enabling the above-mentioned purpose of the present invention, feature and advantage to become apparent from, the present invention is further detailed explanation with detailed description of the invention below in conjunction with the accompanying drawings.
As shown in Figure 1, Figure 2, Figure 3, Figure 4, a kind of wedge shape braking dilator assembly test device of the present invention, including support, detent mechanism, load maintainer, mechanism for testing, wherein, support includes one piece of test base plate, base plate upper end face is symmetrical is fixedly installed left riser and right riser in test;Support central authorities are provided with circular hole;Left riser is respectively fixed with the outside of right riser and tests the reinforcement gusset that base plate upper end face is connected.
Detent mechanism includes boss type positioning seat, spacing connecting rod base 251, spacing connecting rod 25, compressor arm 23, compresses cushion block 24, hold-down cylinder joint 22, compression cylinder 21;Boss type positioning seat is fixed on the central authorities of test base plate, and matches with the central circular hole of test base plate;Spacing connecting rod base 251 is fixed on the test base plate upper surface at boss type positioning seat rear;Limiting cylinder 21 is by being fixed on the test base plate lower surface at spacing connecting rod base 251 rear, and the test base plate of limiting cylinder 21 cylinder installation site has through hole;Compressor arm 23 is articulated with hold-down cylinder joint 22, and spacing connecting rod 25 two ends are hinged with spacing connecting rod base 251 and compressor arm 23 stage casing respectively, and the other end of compressor arm 23 is provided with compression cushion block 24;Load maintainer include load cylinder mounting plate, add carrier gas cylinder connecting plate, add carrier gas cylinder connecting rod, load bar (not shown), load cylinder head, S-type force sensor, add carrier gas cylinder;Add carrier gas cylinder to be fixed on loading cylinder mounting plate, load cylinder mounting plate and be fixed on test base plate lower surface by adding carrier gas cylinder connecting rod, add carrier gas cylinder connecting plate and have four through holes, loading cylinder mounting plate edge adds carrier gas cylinder connecting rod and slides up and down, add carrier gas cylinder connecting plate central authorities upper surface and connect load bar (not shown), adding carrier gas cylinder connecting plate lower surface and be connected with S-type force sensor by loading cylinder head, the S-type force sensor other end is connected with the push rod of cylinder;nullMechanism for testing includes the left mechanism for testing that is symmetrical set relative to boss type positioning seat and right mechanism for testing,Wherein,Left mechanism for testing includes the left rail plate 32 being fixedly installed on test base plate upper end face,Left rail plate 32 is provided with the left sliding floor 34 that can move left and right slip,Left pressure transducer connecting plate is connected with left sliding floor 34 by sensor gusset,Left force transducer is arranged on left pressure transducer connecting plate,Left force transducer is connected with left slide head,The other end of left slide head is connected with the left spring with spring housing,The other end of left spring props up left riser,The another side of left pressure transducer connecting plate is equipped with left measuring head,Left dislocation contact 30 is fixed on left sliding floor 34 side,Left dislocation sensor holder 26 is connected to left test base plate 34 upper surface on rear side of left rail plate 32,Left dislocation sensor 28 is arranged on left dislocation sensor holder 26,Measure end to be connected with left dislocation contact 30;Right mechanism for testing includes the right rail plate 33 being fixedly installed on test base plate upper end face, right rail plate 33 is provided with the right sliding floor 35 that can move left and right slip, right pressure transducer connecting plate is connected with right sliding floor 35 by sensor gusset, right force transducer is arranged on right pressure transducer connecting plate, right force transducer is connected with right slide head, the other end of right slide head is connected with the right spring with spring housing, the other end of right spring props up right riser, the another side of right pressure transducer connecting plate is equipped with right measuring head, right Displacement Contact 31 is fixed on right sliding floor 35 side, right displacement transducer seat 27 is connected to right test base plate 35 upper surface on rear side of right rail plate 33, right displacement transducer 29 is arranged on right displacement transducer seat 27, measure end to be connected with right Displacement Contact 31;Tested wedge shape braking dilator is clamped between left measuring head and right measuring head.
The test process of the wedge shape braking dilator assembly test device of the present invention is described below:
Wedge shape braking dilator assembly test device is by controller control;
(1) wedge shape braking dilator assembly is arranged on boss shape positioning seat, tested wedge shape braking dilator brake force input is connected with load maintainer load bar (not shown), left measuring head and the right measuring head at mechanism for testing two ends being connected with two screw rods about tested wedge shape braking dilator, compression cylinder 21 drives the compressor arm 23 of detent mechanism to be fixed by tested wedge shape braking dilator assembly;
(2) transmission of wedge shape braking dilator assembly brake force is than detection, start test load maintainer, perform simulating brake action, add carrier gas cylinder and pass through S-type force sensor, load cylinder head and upwardly add carrier gas cylinder connecting plate, add carrier gas cylinder connecting plate and move up along adding carrier gas cylinder connecting rod, and brake dilator assembly loading simulation brake force to tested wedge shape through load bar (not shown), S-type force sensor record input power, wedge shape braking dilator two ends screw rod produces braking distance, and power output is produced at screw rod two ends, by the output force value at force sensor measuring two ends in mechanism for testing, and calculate the ratio of input power and power output, if in the range of 1/8 ± 10%, then the transmission of wedge shape braking dilator assembly brake force is more qualified than detection, the most defective;
(3) wedge shape braking dilator assembly self-regulated functional test, start test load maintainer, perform simulating brake action, add carrier gas cylinder and pass through S-type force sensor, load cylinder head and upwardly add carrier gas cylinder connecting plate, add carrier gas cylinder connecting plate and move up along adding carrier gas cylinder connecting rod, and brake dilator assembly loading simulation brake force to tested wedge shape through load bar (not shown), wedge shape braking dilator two ends screw rod produces braking distance, displacement transducer record braking distance, controller controlled loading cylinder is with the beat of 1 time/4S, perform braking maneuver totally 15 times, 15 braking distances of displacement transducer record, the curve of 15 braking distances drawn by controller, if curve has obvious decline trend, then wedge shape braking dilator assembly self-regulated functional test is qualified, the most defective;
(4) if wedge shape braking dilator assembly brake force transmission is more qualified than detection and wedge shape braking dilator assembly self-regulated functional test results, controller is judged as that product is qualified, is otherwise substandard product.
The explanation of above example is only intended to help to understand the core concept of the present invention;Simultaneously for one of ordinary skill in the art, according to the thought of the present invention, the most all will change, in sum, this specification content should not be construed as limitation of the present invention.

Claims (2)

1. the test device of wedge shape braking dilator assembly, it is characterised in that include support, detent mechanism, Load maintainer, mechanism for testing, wherein,
Support includes one piece of test base plate, base plate upper end face is symmetrical is fixedly installed left riser and right riser in test;
Support central authorities are provided with circular hole;
Detent mechanism includes boss type positioning seat, spacing connecting rod base, spacing connecting rod, compressor arm, compression cushion block, compression Cylinder joint, compression cylinder;
Boss type positioning seat is fixed on the central authorities of test base plate, and matches with the central circular hole of test base plate;Spacing company Pole socket is fixed on the test base plate upper surface at boss type positioning seat rear;Limiting cylinder is by being fixed on spacing connecting rod The test base plate lower surface at seat rear, the test base plate of limiting cylinder installation site has through hole;Compressor arm is hinged In hold-down cylinder joint, spacing connecting rod two ends are hinged with spacing connecting rod base and compressor arm stage casing respectively, compressor arm another One end is provided with compression cushion block;
Load maintainer includes loading cylinder mounting plate, adds carrier gas cylinder connecting plate, adds carrier gas cylinder connecting rod, load bar, adds Carrier gas cylinder head, S-type force sensor, add carrier gas cylinder;
Add carrier gas cylinder to be fixed on loading cylinder mounting plate, load cylinder mounting plate and fix by adding carrier gas cylinder connecting rod In test base plate lower surface, add carrier gas cylinder connecting plate and have four through holes, load cylinder mounting plate along adding carrier gas cylinder Connecting rod slides up and down, and adds carrier gas cylinder connecting plate central authorities upper surface and connects load bar, adds carrier gas cylinder connecting plate lower end Face is connected with S-type force sensor by loading cylinder head, and the S-type force sensor other end is connected with cylinder push-rod; Mechanism for testing includes the left mechanism for testing that is symmetrical set relative to boss type positioning seat and right mechanism for testing, its In,
Left mechanism for testing includes the left rail plate being fixedly installed on test base plate upper end face, and left rail plate is provided with Can move left and right the left sliding floor of slip, left pressure transducer connecting plate is at the bottom of by sensor gusset and left slip Plate connects, and left force transducer is arranged on left pressure transducer connecting plate, and left force transducer is connected with left slide head, The other end of left slide head is connected with the left spring with spring housing, and the other end of left spring props up left riser, left The another side of pressure transducer connecting plate is equipped with left measuring head, and left dislocation contact is fixed on left sliding floor side, Left dislocation sensor holder is connected to the left test base plate upper surface on rear side of left rail plate, and left dislocation sensor is installed On left dislocation sensor holder, measure end and be connected with left dislocation contact;
Right mechanism for testing includes the right rail plate being fixedly installed on test base plate upper end face, and right rail plate is provided with Can move left and right the right sliding floor of slip, right pressure transducer connecting plate is at the bottom of by sensor gusset and right slip Plate connects, and right force transducer is arranged on right pressure transducer connecting plate, and right force transducer is connected with right slide head, The other end of right slide head is connected with the right spring with spring housing, and the other end of right spring props up right riser, right The another side of pressure transducer connecting plate is equipped with right measuring head, and right Displacement Contact is fixed on right sliding floor side, Right displacement transducer seat is connected to the right test base plate upper surface on rear side of right rail plate, and right displacement transducer is installed On right displacement transducer seat, measure end and be connected with right Displacement Contact;
Tested wedge shape braking dilator is clamped between left measuring head and right measuring head.
The test device of a kind of wedge shape the most according to claim 1 braking dilator assembly, it is characterised in that Left riser is respectively fixed with the outside of right riser and tests the reinforcement gusset that base plate upper end face is connected.
CN201410302330.6A 2014-06-27 2014-06-27 A kind of test device of wedge shape braking dilator assembly Active CN104089783B (en)

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CN107621326A (en) * 2017-10-26 2018-01-23 苏州联正测试技术服务有限公司 A kind of test device and its method of testing of automobile expander ejection power
CN108896300B (en) * 2018-06-01 2023-11-21 苏州中全智造自动化科技有限公司 Online test device for disc brake
CN109655278A (en) * 2018-11-23 2019-04-19 杭州沃镭智能科技股份有限公司 A kind of reciprocal loading device of Electric booster durability
CN109794875B (en) * 2019-04-04 2021-02-05 广州川也汽车装备有限公司 Automobile glass guide rail assembly test fixture

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