CN102673547A - Running-in method of full trailer drum brake - Google Patents
Running-in method of full trailer drum brake Download PDFInfo
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- CN102673547A CN102673547A CN201210160376XA CN201210160376A CN102673547A CN 102673547 A CN102673547 A CN 102673547A CN 201210160376X A CN201210160376X A CN 201210160376XA CN 201210160376 A CN201210160376 A CN 201210160376A CN 102673547 A CN102673547 A CN 102673547A
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- drum brake
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Abstract
The invention discloses a running-in method of a full trailer drum brake. The method comprises the following steps of: detaching a water discharging device from a gas storage bottle; positioning and connecting a pressure adjusting device on the gas storage bottle or directly connecting the pressure adjusting device on a pipeline according to actual requirements; connecting a gas supply connector of a tractor and the gas supply connector of a trailer, and carrying out gas supply for 0.2-0.3 Mpa and cutting off; mounting a probe of a digital thermometer on the outer surface of a wheel hub; controlling a drawing speed by the tractor and adjusting an air pressure to a suitable braking pressure through the pressure adjusting device; and after drawing and running in, reducing the temperature of the outer surface of the wheel hub to a room temperature, detecting the size of a wheel braking moment and a moment difference of left and right wheels. The running-in method is simple and high in efficiency, effectively reduces the production cost and reduces the damages to parts when the drum brake is used for carrying out running-in. According to the running-in method, the wheel hub and a brake shoe are conveniently replaced and the full trailer drum brake is subjected to the running-in.
Description
Technical field
The present invention relates to the job operation of automobile component, be specifically related to a kind of break-in method of independent trailer drum brake mechanism.
Background technology
Civilian special-purpose independent trailer and military independent trailer not only will have the ability of running at high speed; Its speed >=80km/h; And want safety traffic under the situation of road conditions condition very severe in the open air; So it must possess very high deceleration and stopping performance, like size, the left and right wheels torque difference of wheel braking moment, subtract acceleration/accel, stopping distance, off-track amount extremely exacting requirements is all arranged.Independent trailer generally adopts drum brake mechanism, so drum brake mechanism has important role to tractor truck and independent trailer brake safe performance.Generally drum brake mechanism need reach wheel hub and brake facing has bigger area of contact through the wheel hub break-in, could guarantee that vehicle testing line carries out carrying out the road conditions examination through traction on the deceleration and stopping performance cross-check sum road.
The wheel hub of drum brake mechanism break-in method commonly used is following:
A) carry out break-in through specialized equipment, improved break-in efficient, shortened the break-in cycle, but this equipment investment is big, the maintaining cost is high, is fit to produce in enormous quantities.If when applying unit needs repairing replacing brake shoes and wheel hub, can not carry out break-in to the wheel hub after changing just there is this equipment.
B) military independent trailer generally is many kinds, small lot or even single-piece production, and its structural change is big, does not have the wheel hub running-in device of special-purpose drum brake mechanism.Usually adopt the normal brake break-in of going of drawing, this break-in is big to wheel hub, brake shoes and the wear on tyres of tractor truck, the torque difference of wayward break-in intensity and left and right wheels, and waste a large amount of energy.
Summary of the invention
Goal of the invention of the present invention provides a kind of break-in method of independent trailer drum brake mechanism, and this method is simple to operate, efficient is high, power consumption is few, and the break-in cost is low.
The break-in method of a kind of independent trailer drum brake mechanism of the present invention, break-in utilize the single, double pipeline pneumatic control system of existing independent trailer to carry out, and its step is following:
The first step is installed regulator; The jettison gear that is located on the gaholder is pulled down, again regulator is located by connecting on the gaholder; Perhaps do not pull down the jettison gear that is located on the gaholder, directly regulator is connected on the pipeline;
Second step is to the independent trailer air feed; Be connected with first air connector on the independent trailer with the air connector of tractor truck and carry out air feed, gaholder air pressure breaks off after reaching 0.2～0.3Mpa;
The third step is to install digital thermometer; digital thermometer probe mounted on the outer surface of round grains, through the digital thermometer display reads temperature data;
The 4th step, the adjustment brake pressure; Through tractor truck control haulage speed, through regulator with the adjustment of inflation pressure of brake cylinder or gaholder to brake pressure (both pressure are identical at this moment);
The 5th step, the traction break-in; Through full extension of tractor truck traction drum brake mechanism is carried out break-in, when treating after the break-in that the hub outside surface temperature fall causes normal temperature, detect wheel lock torque size, left and right wheels torque difference.
The break-in method of described a kind of independent trailer drum brake mechanism is characterized in that: select following different parameters to draw break-in;
A. brake pressure is adjusted to 0.06～0.08Mpa; The tractor truck speed control again through the monitoring of the probe on digital thermometer wheel hub appearance temperature, and is controlled at 80 ℃～90 ℃ at 3～6 km/h; Keep left and right sides wheel hub temperature consistent as far as possible, error is no more than 10 ℃ and gets final product;
B. brake pressure is adjusted to 0.08～0.1Mpa; The tractor truck speed control is at 5～8 km/h; Again through the monitoring of the probe on digital thermometer wheel hub appearance temperature, and be controlled at 100 ℃～110 ℃, keep the wheel hub temperature uniform error of trying one's best in the left and right sides to be no more than 10 ℃ and to get final product;
C. brake pressure is adjusted to 0.1～0.12Mpa; The tractor truck speed control again through the monitoring of the probe on digital thermometer wheel hub appearance temperature, and is controlled at 110 ℃～130 ℃ at 7～10 km/h; Keep left and right sides wheel hub temperature consistent as far as possible, error is no more than 10 ℃ and gets final product.
The break-in method of the drum brake mechanism of described a kind of independent trailer is characterized in that: described regulator is made up of switch, tire pressure gauge and one group of jointing of adjustment pressure release.
The pneumatic control system of independent trailer comprises single tube path control system and dual circuit control system; When cruising; Because causing, accident causation breaks off relations with tractor truck or tractor truck braking control system when occurring normally to carry out air feed to the independent trailer supply air line; The independent trailer brake activation valve has the die function of emergency brake (full application of brake) of automatic protection, just can guarantee to draw driving safety.
The present invention makes full use of drum brake mechanism and is in braking state; Be that the independent trailer pneumatic control system is under the emergency brake of dying (full application of brake) situation; The switch of adjustment regulator is to brake pressure; Normal traction is carried out break-in to drum brake mechanism under the low speed situation, has avoided passing through normal braking break-in mode to wheel hub, brake shoes and Tyte Wear, and controls break-in intensity and time through control wheel hub break-in temperature.
After the traction break-in, treat that wheel hub appearance temperature fall causes normal temperature, carry out wheel braking moment size, the detection of left and right wheels torque difference.Because processing, assembling and setting has error, detects inferior-quality product by this method after the break-in, then inferior-quality product is done over again till qualified according to this method.
Beneficial effect of the present invention: this method is simple, efficient is high; Do not need specialized equipment effectively to reduce production costs; The infringement of parts when drum brake mechanism carried out break-in be can reduce for the production of small lot, single-piece, many kinds, wheel hub and brake shoes are convenient for changing.
Description of drawings
Fig. 1 is the scheme drawing of the single, double pipeline pneumatic control system of independent trailer;
Fig. 2 is that regulator is located at the scheme drawing on the gaholder;
Fig. 3 is that regulator is located at the scheme drawing on the pipeline.
Among the figure: the 1-first air feed connector, the 2-second control linkage head, 3-gaholder, 4-jettison gear, 5-independent trailer brake activation valve, 6-brake cylinder, 7-pipeline, 8-regulator.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is further described.
Referring to Fig. 1, the single, double pipeline pneumatic control system of shown independent trailer, air feed connector 1 links to each other with the right side of independent trailer brake activation valve 5 through pipeline, and the pipeline that passes on left of independent trailer brake activation valve 5 links to each other with gaholder 3, and jettison gear 4 is installed on the gaholder 3; The bottom of independent trailer brake activation valve 5 links to each other with two groups of wheel braking cylinders through pipeline.
The present invention utilizes the single, double pipeline pneumatic control system of existing independent trailer to carry out break-in.The single, double pipeline pneumatic control system of said independent trailer comprises: independent trailer brake activation valve 5, respectively with independent trailer brake activation valve bonded assembly first air feed connector 1, second control linkage 2 and gaholder 3 and be located at the jettison gear 4 on the gaholder also comprises through pipeline 7 and each brake cylinder 6 of independent trailer brake activation valve 5 bonded assemblys.
The break-in method of a kind of independent trailer drum brake mechanism of the present invention (being a kind of break-in method that is located at the jettison gear independent trailer drum brake mechanism on the gaholder); Break-in utilizes the single, double pipeline pneumatic control system of existing independent trailer to carry out, and its step is following:
The first step is installed regulator 8; The jettison gear 4 that is located on the gaholder 3 is pulled down, again regulator 8 is located by connecting on the gaholder; Perhaps do not pull down the jettison gear 4 that is located on the gaholder 3, directly regulator 8 is connected on the pipeline 7;
Second step is to the independent trailer air feed; Be connected with first air connector 1 on the independent trailer with the air connector of tractor truck and carry out air feed, break off after gaholder 3 air pressure reach 0.2～0.3Mpa;
The third step is to install digital thermometer; digital thermometer probe mounted on the outer surface of round grains, through the digital thermometer display reads temperature data;
The 4th step, the adjustment brake pressure; Through tractor truck control haulage speed, through regulator 8 with the adjustment of inflation pressure of brake cylinder 6 or gaholder 3 to brake pressure, both pressure are identical at this moment;
The 5th step, the traction break-in; Through full extension of tractor truck traction drum brake mechanism is carried out break-in, when treating after the break-in that the hub outside surface temperature fall causes normal temperature, detect wheel lock torque size, left and right wheels torque difference.
Described regulator 8 is made up of switch, tire pressure gauge and one group of jointing of adjustment pressure release.
Embodiment one:Break-in method referring to the drum brake mechanism of independent trailer illustrated in figures 1 and 2 comprises the steps:
The first step: the jettison gear on the gaholder 34 is pulled down, again regulator 8 is installed on the gaholder 3.Described regulator 8 is made up of adjustment pressure release switch, tire pressure gauge and one group of jointing, through the switch control air pressure of jointing and adjustment pressure release, watches atmospheric pressure value through tire pressure gauge.
Second step: be connected with air connector 1 on the trailer with the air connector of tractor truck carry out air feed to 0.2～break off behind the 0.3Mpa.
The third step: Install the outer surface of the wheel grain probe digital thermometer, digital thermometer display through the observation of temperature changes.
The 4th step:, adjustment of inflation pressure is arrived suitable brake pressure through regulator through tractor truck control haulage speed.(drum brake mechanism that is fit to any structure so just each drum brake mechanism lock torque size, left and right wheels torque difference and specified value gap have size to select three kinds of parameters to carry out, can be raised the efficiency break-in)
A. the break-in of low pressure low-intensity is adjusted to 0.06～0.08MPa with brake pressure, and haulage speed is controlled at 3～6 km/h; Again through the monitoring of the probe on digital thermometer wheel hub appearance temperature; And be controlled at 80 ℃～90 ℃, keep the wheel hub temperature uniform error of trying one's best in the left and right sides to be no more than 10 ℃ and to get final product
B. intensity break-in in pressing in; Brake pressure is adjusted to 0.08～0.1MPa, and haulage speed is controlled at 5～8 km/h, again through the monitoring of the probe on digital thermometer wheel hub appearance temperature; And be controlled at 100 ℃～110 ℃, keep the wheel hub temperature uniform error of trying one's best in the left and right sides to be no more than 10 ℃ and to get final product.
C. high pressure high strength break-in; Brake pressure is adjusted to 0.1～0.12MPa, and haulage speed is controlled at 7～10 km/h, again through the monitoring of the probe on digital thermometer wheel hub appearance temperature; And be controlled at 110 ℃～130 ℃, keep the wheel hub temperature uniform error of trying one's best in the left and right sides to be no more than 10 ℃ and to get final product.
The 5th step: after the traction break-in, treat that the hub outside surface temperature fall causes normal temperature, detect wheel lock torque size, left and right wheels torque difference.
Embodiment two:Break-in method referring to the drum brake mechanism of Fig. 1 and independent trailer shown in Figure 3 comprises the steps:
The first step: regulator 8 is connected on the pipeline 7.
Described regulator 8 is made up of switch or tire pressure gauge and one group of jointing of adjustment pressure release, controls air pressure through the jointing and the switch of adjustment pressure release, watches atmospheric pressure value through tire pressure gauge.
Second step: be connected with air connector 1 on the trailer with the air connector of tractor truck carry out air feed to 0.2～break off behind the 0.3Mpa.
The third step: Install the outer surface of the wheel grain probe digital thermometer, digital thermometer display through the observation of temperature changes.
The 4th step:, adjustment of inflation pressure is arrived brake pressure through regulator through tractor truck control haulage speed.(drum brake mechanism that is fit to any structure so just each drum brake mechanism lock torque size, left and right wheels torque difference and specified value gap have size to select three kinds of parameters to carry out, can be raised the efficiency break-in)
A. the break-in of low pressure low-intensity is adjusted to 0.06～0.08MPa with brake pressure, and haulage speed is controlled at 3～6 km/h; Again through the monitoring of the probe on digital thermometer wheel hub appearance temperature; And be controlled at 80 ℃～90 ℃, keep the wheel hub temperature uniform error of trying one's best in the left and right sides to be no more than 10 ℃ and to get final product
B. intensity break-in in pressing in; Brake pressure is adjusted to 0.08～0.1MPa, and haulage speed is controlled at 5～8 km/h, again through the monitoring of the probe on digital thermometer wheel hub appearance temperature; And be controlled at 100 ℃～110 ℃, keep the wheel hub temperature uniform error of trying one's best in the left and right sides to be no more than 10 ℃ and to get final product.
C. high pressure high strength break-in; Brake pressure is adjusted to 0.1～0.12MPa, and haulage speed is controlled at 7～10 km/h, again through the monitoring of the probe on digital thermometer wheel hub appearance temperature; And be controlled at 110 ℃～130 ℃, keep the wheel hub temperature uniform error of trying one's best in the left and right sides to be no more than 10 ℃ and to get final product.
The 5th step: after the traction break-in, treat that the hub outside surface temperature fall causes normal temperature, detect wheel lock torque size, left and right wheels torque difference.
Claims (2)
1. the break-in method of an independent trailer drum brake mechanism, break-in utilizes the single, double pipeline pneumatic control system of existing independent trailer to carry out, and its step is following:
The first step is installed regulator (8); The jettison gear (4) that will be located on the gaholder (3) is pulled down, and regulator (8) is located by connecting on the gaholder again; Perhaps do not pull down the jettison gear (4) that is located on the gaholder (3), directly regulator (8) is connected on the pipeline (7);
Second step is to the independent trailer air feed; Be connected with first air connector (1) on the independent trailer with the air connector of tractor truck and carry out air feed, break off after gaholder (3) air pressure reaches 0.2～0.3Mpa;
The third step is to install digital thermometer; digital thermometer probe mounted on the outer surface of round grains, through the digital thermometer display reads temperature data;
The 4th step, the adjustment brake pressure; Through tractor truck control haulage speed, through regulator (8) with the adjustment of inflation pressure of brake cylinder (6) or gaholder (3) to brake pressure;
The 5th step, the traction break-in; Through full extension of tractor truck traction drum brake mechanism is carried out break-in, when treating after the break-in that the hub outside surface temperature fall causes normal temperature, detect wheel lock torque size, left and right wheels torque difference.
2. the break-in method of the drum brake mechanism of a kind of independent trailer according to claim 1 is characterized in that: described regulator (8) is made up of switch, tire pressure gauge and one group of jointing of adjustment pressure release.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210160376.XA CN102673547B (en) | 2012-05-23 | 2012-05-23 | Running-in method of full trailer drum brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210160376.XA CN102673547B (en) | 2012-05-23 | 2012-05-23 | Running-in method of full trailer drum brake |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102673547A true CN102673547A (en) | 2012-09-19 |
| CN102673547B CN102673547B (en) | 2014-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210160376.XA Expired - Fee Related CN102673547B (en) | 2012-05-23 | 2012-05-23 | Running-in method of full trailer drum brake |
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| CN (1) | CN102673547B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109131280A (en) * | 2017-06-19 | 2019-01-04 | 罗伯特·博世有限公司 | Brake block merges method and its electronic control unit |
| CN109648430A (en) * | 2018-12-05 | 2019-04-19 | 兰州飞行控制有限责任公司 | A kind of aviation friction clutch adjustment technique |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060273658A1 (en) * | 2003-05-19 | 2006-12-07 | Georg Halassy-Wimmer | Method for restoring, stabilizing and maintaining the coefficient of friction of brakem linings |
| CN101962061A (en) * | 2010-10-18 | 2011-02-02 | 重庆隆鑫机车有限公司 | Drum brake for front wheel of motorcycle |
| CN102323065A (en) * | 2011-06-10 | 2012-01-18 | 郑州日产汽车有限公司 | Method for testing sensation evaluation of brake pedal |
| CN102458936A (en) * | 2009-06-23 | 2012-05-16 | 大陆-特韦斯贸易合伙股份公司及两合公司 | Electronic braking system having friction brake comprising friction linings for at least one wheel brake, and having at least one electronic control device |
-
2012
- 2012-05-23 CN CN201210160376.XA patent/CN102673547B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060273658A1 (en) * | 2003-05-19 | 2006-12-07 | Georg Halassy-Wimmer | Method for restoring, stabilizing and maintaining the coefficient of friction of brakem linings |
| CN102458936A (en) * | 2009-06-23 | 2012-05-16 | 大陆-特韦斯贸易合伙股份公司及两合公司 | Electronic braking system having friction brake comprising friction linings for at least one wheel brake, and having at least one electronic control device |
| CN101962061A (en) * | 2010-10-18 | 2011-02-02 | 重庆隆鑫机车有限公司 | Drum brake for front wheel of motorcycle |
| CN102323065A (en) * | 2011-06-10 | 2012-01-18 | 郑州日产汽车有限公司 | Method for testing sensation evaluation of brake pedal |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109131280A (en) * | 2017-06-19 | 2019-01-04 | 罗伯特·博世有限公司 | Brake block merges method and its electronic control unit |
| CN109648430A (en) * | 2018-12-05 | 2019-04-19 | 兰州飞行控制有限责任公司 | A kind of aviation friction clutch adjustment technique |
| CN109648430B (en) * | 2018-12-05 | 2020-11-10 | 兰州飞行控制有限责任公司 | Aviation friction clutch adjusting process |
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| CN102673547B (en) | 2014-04-02 |
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