CN109520750B - Traction braking anti-collision system of test vehicle on test pavement - Google Patents
Traction braking anti-collision system of test vehicle on test pavement Download PDFInfo
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- CN109520750B CN109520750B CN201910014965.9A CN201910014965A CN109520750B CN 109520750 B CN109520750 B CN 109520750B CN 201910014965 A CN201910014965 A CN 201910014965A CN 109520750 B CN109520750 B CN 109520750B
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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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Abstract
The invention discloses a traction braking anti-collision system of a test vehicle on a test road surface, which comprises the test road surface, wherein the test vehicle on the test road surface is provided with a braking device at the starting point of the test road surface, a traction device is arranged at the end point of the test road surface, and an anti-collision railing is arranged in front of the traction device at the end point of the test road surface; the traction device comprises a variable frequency motor, a first coupling, a first speed reducer, a second coupling, a first bearing seat, a first roller, a first steel wire rope and a hook, wherein the hook is connected with the front part of the test vehicle and drives the test vehicle to move forwards; the braking device comprises a rotary motor, a coupling III, a switching shaft, a bidirectional overrunning clutch, a roller II, a steel wire rope II, a bearing seat II, an electromagnetic clutch, a magnetic powder brake and a hook. The traction braking anti-collision system of the test vehicle on the test pavement replaces the test mode of the traditional manual driving test vehicle, adopts the traction device and the braking device to control the movement of the test vehicle, and has the advantages of quick starting and braking speed, good safety, strong controllability and high accuracy of test results.
Description
Technical Field
The invention relates to a traction braking anti-collision system of a test vehicle on a test pavement, which is used in the field of environmental sanitation vehicle performance test.
Background
At present, most domestic detection institutions drive a test vehicle to carry out road surface cleaning tests by adopting a professional driver, the starting and braking of the test vehicle are greatly influenced by human factors, the starting and braking speeds are low, the test vehicle can not be ensured to clean the road surface at a specified test speed all the time, and the accuracy of a test result is seriously influenced.
Disclosure of Invention
The invention provides a traction braking anti-collision system of a test vehicle on a test road surface, which aims to solve the problems that the starting and braking of the test vehicle in the prior art are greatly influenced by human factors, the starting and braking speeds are low, the test vehicle can not be ensured to always clean the road surface at a specified test speed, and the like.
The invention adopts the following technical scheme:
the utility model provides a traction braking collision avoidance system of test vehicle on test road surface, includes test road surface, is in test vehicle on the test road surface, its characterized in that: the starting point of the test pavement (1) is provided with a braking device, the end point of the test pavement (1) is provided with a traction device, and the end point of the test pavement (1) is provided with an anti-collision railing (5) in front of the traction device;
the traction device comprises a variable frequency motor (6), a first coupler (7), a first speed reducer (8), a second coupler (9), a first bearing seat (10), a first roller (11), a first steel wire rope (12) and a hook (13), wherein the hook (13) is connected with the front part of the test vehicle (4) and drives the test vehicle (4) to move forwards;
the braking device comprises a rotary motor (17), a third coupling (18), a switching shaft (19), a two-way overrunning clutch (20), a second roller (21), a second steel wire rope (22), a second bearing seat (23), an electromagnetic clutch (24), a magnetic powder brake (25) and a hook (13);
the rotary motor (17) is connected and driven through the coupling III (18), the adapter shaft (19) and the bidirectional overrunning clutch (20) the central shaft one end of the roller II (21) drives the roller II (21) to synchronously rotate, the other end of the central shaft of the roller II (21) is sequentially connected with the electromagnetic clutch (24) and the magnetic powder brake (25), the two ends of the central shaft of the roller II (21) respectively penetrate through the through hole of the bearing seat II (23) and are supported by the bearing arranged on the through hole, the magnetic powder brake (25) brakes the roller II (21) to rotate in a slip motion mode through the electromagnetic clutch (24), the roller II (21) drives the wire rope II (22) wound on the sub-surface of the roller II to do rollback motion, and the wire rope II (22) is connected and pulled through the hook (13) fixedly connected with the free end of the wire rope II (22) to the rear part of the test vehicle (4) so as to stop the motion of the test vehicle (4).
The variable frequency motor (6) of the traction device drives the input shaft (14) of the first speed reducer (8) through the first coupler (7), the output shaft (15) of the first speed reducer (8) is connected with the central shaft of the first roller (11) through the second coupler (9), the first roller (11) is driven to coaxially and synchronously rotate, the two ends of the central shaft of the first roller (11) respectively penetrate through the through holes of the first bearing seat (10) and are supported by bearings arranged on the through holes, the first roller (11) drives the first steel wire rope (12) wound on the roller surface of the first roller to do rollback motion, and the free end of the first steel wire rope (12) is fixedly connected with the hook (13).
The first roller (11) is fixedly connected with the central shaft of the first roller (11) in a coaxial way; the second roller (21) is fixedly connected with the central shaft of the second roller (21) in a coaxial way.
The variable frequency motor (6), the first speed reducer (8) and the first bearing seat (10) are supported and fixed through the first bracket (3); the rotary motor (17), the magnetic powder brake (25) and the bearing seat II (23) are supported and fixed through the bracket II (2); the first bracket (3) and the second bracket (2) are fixed on the ground through anchor bolts (26).
The first roller (11) and the second roller (21) are horizontally arranged along the transverse direction of the test pavement (1).
The impact surface of the anti-collision railing (5) is provided with a plurality of groups of tires (16).
The traction device and the braking device control traction or braking of the test vehicle (4) through a PLC.
The invention has the following advantages:
the traction braking anti-collision system of the test vehicle on the test road surface replaces the test mode of the traditional manual driving test vehicle, adopts the traction device and the braking device to control the movement of the test vehicle, has high starting and braking speed, strong controllability, unified standard, high degree of automation and high accuracy of test results, and can effectively protect the traction device by arranging the protective railing at the road surface terminal.
Description of the drawings:
FIG. 1 is a schematic diagram of the overall structure of the present invention.
Fig. 2 is a schematic structural view of a traction device, a braking device and an anti-collision device according to the present invention.
Fig. 3 is a schematic structural view of the braking device of the present invention.
Fig. 4 is a schematic structural view of the traction device of the present invention.
Fig. 5 is a schematic structural view of a brake device according to the present invention.
Fig. 6 is a schematic structural view of the traction device of the present invention.
Reference numerals:
the test device comprises a test pavement 1, a support 2, a support 3, a test carriage 4, an anti-collision railing 5, a variable frequency motor 6, a coupling 7, a speed reducer 8, a coupling 9, a bearing seat 10, a roller 11, a steel wire 12, a hook 13, an input shaft 14, an output shaft 15, a tire 16, a rotary motor 17, a coupling 18, a switching shaft 19, a bidirectional overrun clutch 20, a roller 21, a steel wire 22, a bearing seat 23, an electromagnetic clutch 24, a magnetic powder brake 25, a foundation bolt 26 and an axial locating sheet 27
The specific embodiment is as follows:
the following describes the embodiments of the present invention further with reference to the drawings.
As shown in fig. 1-4, a traction braking anti-collision system of a test vehicle on a test road surface comprises the test road surface, wherein the test vehicle on the test road surface is provided with a braking device at the starting point of the test road surface 1, a traction device is arranged at the end point of the test road surface 1, and an anti-collision railing 5 is arranged in front of the traction device at the end point of the test road surface 1;
as shown in fig. 1, 2 and 4, the traction device comprises a variable frequency motor 6, a first coupler 7, a first speed reducer 8, a second coupler 9, a first bearing seat 10, a first roller 11, a first steel wire rope 12 and a hook 13, wherein the hook 13 is connected with the front part of the test carriage 4 and drives the test carriage 4 to move forwards;
as shown in fig. 1, 2 and 3, the braking device comprises a rotary motor 17, a third coupling 18, a transfer shaft 19, a bidirectional overrunning clutch 20, a second roller 21, a second wire rope 22, a second bearing seat 23, an electromagnetic clutch 24, a magnetic powder brake 25 and a hook 13;
as shown in fig. 2 and 3, the rotary motor 17 is connected to drive one end of a central shaft of the second roller 21 through the third coupling 18, the adapter shaft 19 and the bidirectional overrunning clutch 20 to drive the second roller 21 to synchronously rotate, the other end of the central shaft of the second roller 21 is sequentially connected with the electromagnetic clutch 24 and the magnetic powder brake 25, two ends of the central shaft of the second roller 21 respectively penetrate through a through hole of the second bearing seat 23 and are supported by bearings arranged on the through hole, the magnetic powder brake 25 brakes the second roller 21 to rotate in a sliding motion way through sucking the electromagnetic clutch 24, the second roller 21 drives the second wire rope 22 wound on a roller surface of the second roller to do rewinding motion, and the second wire rope 22 is connected to the rear part of the traction test vehicle 4 through a hook 13 fixedly connected with the free end of the second wire rope to stop motion of the test vehicle 4.
As shown in fig. 2 and 4, the variable frequency motor 6 of the traction device drives the input shaft 14 of the first speed reducer 8 through the first coupler 7, the output shaft 15 of the first speed reducer 8 is connected with the central shaft of the first roller 11 through the second coupler 9 to drive the first roller 11 to coaxially and synchronously rotate, two ends of the central shaft of the first roller 11 respectively penetrate through the through hole of the first bearing seat 10 and are supported by bearings arranged on the through hole, the first roller 11 drives the first wire rope 12 wound on the roller surface of the first roller to do rewinding movement, and the free end of the first wire rope 12 is fixedly connected with the hook 13.
The first roller 11 is fixedly connected with the central shaft of the first roller 11 in a coaxial manner; the second roller 21 is fixedly connected with the central shaft of the second roller 21 in a coaxial manner.
As shown in fig. 3 and 4, the variable frequency motor 6, the first speed reducer 8 and the first bearing seat 10 are supported and fixed through the first bracket 3; the rotary motor 17, the magnetic powder brake 25 and the bearing seat II 23 are supported and fixed through the bracket II 2; the first bracket 3 and the second bracket 2 are fixed on the ground through anchor bolts 26.
The first roller 11 and the second roller 21 are horizontally arranged along the transverse direction of the test pavement 1.
As shown in fig. 2, a plurality of groups of tires 16 are arranged on the impact surface of the anti-collision railing 5, and the tires 16 can effectively buffer the impact force of the test vehicle, thereby protecting the traction device.
The traction device and the braking device control traction or braking of the test vehicle 4 through a PLC.
Working principle:
the traction device at the end point of the test pavement drives the coupler, the speed reducer and the roller to rotate through the variable frequency motor, the roller rotates to drive the steel wire rope wound on the roller surface to rewind, the free end of the steel wire rope pulls the test vehicle to move in the unpowered neutral state, the test vehicle is guaranteed to accelerate to not less than 5 km/h on an accelerating section, the test vehicle moves at a uniform speed on a testing section, when the test is completed, the braking device at the end point of the test pavement sucks the magnetic powder brake and the electromagnetic clutch in a logic control manner, so that the magnetic powder brake does slip motion until the test vehicle stops moving, the magnetic powder brake is powered off after the braking is completed, the rotary motor starts to enable the steel wire rope to rewind to the roller, and the empty torque of the test vehicle can be adjusted in a proper range by adjusting the air gap value of the electromagnetic clutch of the braking mechanism, so that the braking traction rope is tensioned and does not drag the ground.
Claims (5)
1. The utility model provides a traction braking collision avoidance system of test vehicle on test road surface, includes test road surface, is in test vehicle on the test road surface, its characterized in that: the starting point of the test pavement (1) is provided with a braking device, the end point of the test pavement (1) is provided with a traction device, and the end point of the test pavement (1) is provided with an anti-collision railing (5) in front of the traction device;
the traction device comprises a variable frequency motor (6), a first coupler (7), a first speed reducer (8), a second coupler (9), a first bearing seat (10), a first roller (11), a first steel wire rope (12) and a hook (13), wherein the hook (13) is connected with the front part of the test vehicle (4) and drives the test vehicle (4) to move forwards;
the braking device comprises a rotary motor (17), a third coupling (18), a switching shaft (19), a two-way overrunning clutch (20), a second roller (21), a second steel wire rope (22), a second bearing seat (23), an electromagnetic clutch (24), a magnetic powder brake (25) and a hook (13);
the rotary motor (17) is connected with and drives one end of a central shaft of the roller II (21) through the coupler III (18), the adapter shaft (19) and the bidirectional overrun clutch (20) to drive the roller II (21) to synchronously rotate, the other end of the central shaft of the roller II (21) is sequentially connected with the electromagnetic clutch (24) and the magnetic powder brake (25), the two ends of the central shaft of the roller II (21) respectively penetrate through the through hole of the bearing seat II (23) and are supported by a bearing arranged on the through hole, the magnetic powder brake (25) brakes the roller II (21) to rotate in a sliding motion way by sucking the electromagnetic clutch (24), the roller II (21) drives the steel wire rope II (22) wound on the roller surface of the roller II to do rollback motion, and the steel wire rope II (22) is connected with and pulls the rear part of the test vehicle (4) through the hook (13) fixedly connected with the free end of the steel wire rope II (22) to stop the motion of the test vehicle (4);
a plurality of groups of tires (16) are arranged on the impact surface of the anti-collision railing (5);
the traction device and the braking device control traction or braking of the test vehicle (4) through a PLC.
2. The traction brake collision avoidance system of a test vehicle on a test pavement according to claim 1 wherein: the variable frequency motor (6) of the traction device drives the input shaft (14) of the first speed reducer (8) through the first coupler (7), the output shaft (15) of the first speed reducer (8) is connected with the central shaft of the first roller (11) through the second coupler (9), the first roller (11) is driven to coaxially and synchronously rotate, the two ends of the central shaft of the first roller (11) respectively penetrate through the through holes of the first bearing seat (10) and are supported by bearings arranged on the through holes, the first roller (11) drives the first steel wire rope (12) wound on the roller surface of the first roller to do rewinding movement, and the free end of the first steel wire rope (12) is fixedly connected with the hook (13).
3. A traction brake collision avoidance system for test vehicles on test pavements according to claim 1 or 2, wherein: the first roller (11) is fixedly connected with the central shaft of the first roller (11) in a coaxial way;
the second roller (21) is fixedly connected with the central shaft of the second roller (21) in a coaxial way.
4. The traction brake collision avoidance system of a test vehicle on a test pavement according to claim 1 wherein: the variable frequency motor (6), the first speed reducer (8) and the first bearing seat (10) are supported and fixed through the first bracket (3); the rotary motor (17), the magnetic powder brake (25) and the bearing seat II (23) are supported and fixed through the bracket II (2); the first bracket (3) and the second bracket (2) are fixed on the ground through anchor bolts (26).
5. The traction brake collision avoidance system of a test vehicle on a test pavement according to claim 1 wherein: the first roller (11) and the second roller (21) are horizontally arranged along the transverse direction of the test pavement (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910014965.9A CN109520750B (en) | 2019-01-08 | 2019-01-08 | Traction braking anti-collision system of test vehicle on test pavement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910014965.9A CN109520750B (en) | 2019-01-08 | 2019-01-08 | Traction braking anti-collision system of test vehicle on test pavement |
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| Publication Number | Publication Date |
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| CN109520750A CN109520750A (en) | 2019-03-26 |
| CN109520750B true CN109520750B (en) | 2023-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910014965.9A Active CN109520750B (en) | 2019-01-08 | 2019-01-08 | Traction braking anti-collision system of test vehicle on test pavement |
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2019
- 2019-01-08 CN CN201910014965.9A patent/CN109520750B/en active Active
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|---|---|---|---|---|
| JP2005043141A (en) * | 2003-07-25 | 2005-02-17 | Shinko Electric Co Ltd | Vehicle collision testing method |
| DE102004016288B3 (en) * | 2004-04-02 | 2005-08-18 | Daimlerchrysler Ag | Determining friction value between vehicle tire, road involves evaluating tire vibration characteristic(s), especially frequency spectrum and/or time domain spectrum, by evaluating data using physical and/or phenomenological model approach |
| CN101865757A (en) * | 2010-03-23 | 2010-10-20 | 昆山市创新科技检测仪器有限公司 | Pneumatic piston type auto parts crash test machine |
| CN102169649A (en) * | 2011-04-22 | 2011-08-31 | 吉林大学 | Demonstration teaching aid of support trafficability of sandlot model vehicle |
| CN105509986A (en) * | 2015-12-30 | 2016-04-20 | 吉林大学 | System for testing interception performance of anti-collision anti-terrorism antiriot apparatus |
| CN107036796A (en) * | 2017-05-27 | 2017-08-11 | 公安部上海消防研究所 | The comprehensive test device and its method of testing of vehicular fire-fighting capstan winch |
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| CN109520750A (en) | 2019-03-26 |
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