CN110044641B - Road garbage sweeper braking performance testing device and control system thereof - Google Patents
Road garbage sweeper braking performance testing device and control system thereof Download PDFInfo
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- CN110044641B CN110044641B CN201910371482.4A CN201910371482A CN110044641B CN 110044641 B CN110044641 B CN 110044641B CN 201910371482 A CN201910371482 A CN 201910371482A CN 110044641 B CN110044641 B CN 110044641B
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- accelerometer
- fixedly connected
- fixing frame
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- garbage sweeper
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
- E01H1/005—Mobile installations, particularly for upkeeping in situ road or railway furniture, for instance road barricades, traffic signs; Mobile installations particularly for upkeeping tunnel walls
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/28—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for testing brakes
- G01L5/284—Measuring braking-time or braking distance
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/28—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for testing brakes
- G01L5/286—Measuring deceleration
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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)
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Regulating Braking Force (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The invention discloses a device for testing the braking performance of a road garbage sweeper, which relates to the technical field related to the braking performance of vehicles and comprises the garbage sweeper, an accelerometer, a pressure sensor and a five-wheel instrument, wherein the accelerometer is arranged in a cab of the garbage sweeper through an accelerometer fixing frame, the pressure sensor is arranged at the wheel of the garbage sweeper, the five-wheel instrument is arranged at the tail of the garbage sweeper, the invention also discloses a control system of the device for intelligently testing the braking performance of the urban road garbage sweeper, which comprises a singlechip, a microprocessor, a data comparison module and a data storage module, the output ends of the accelerometer, the pressure sensor and the five-wheel instrument are electrically connected with the input end of the single chip microcomputer.
Description
Technical Field
The invention relates to the technical field related to vehicle braking performance, in particular to a device for testing the braking performance of a road garbage sweeper and a control system thereof.
Background
Braking properties of a vehicle refers to the ability of a vehicle to forcibly decelerate to a stop while traveling, or to maintain a constant speed while traveling downhill. The braking process of a motor vehicle is to artificially increase the driving resistance of the motor vehicle by means of wheel brakes, an engine or special auxiliary brakes. When braking, the tangential reaction force (i.e. braking force) of the road surface opposite to the driving direction of the automobile to the wheels, which is generated by the interaction between the braking wheels (usually the front and rear wheels of the automobile are braking wheels) and the road surface, has a decisive influence on the braking performance of the automobile, and the maximum value of the tangential reaction force depends on the adhesion between the tire and the road surface. The evaluation indexes of the braking performance are as follows: braking deceleration, braking time and braking distance.
The braking performance of the automobile is related to traffic safety, and major traffic accidents are often related to the situations that the braking distance is too long, sideslip occurs during emergency braking, and the like, so the braking performance of the automobile is an important guarantee for safe driving of the automobile. With the rapid development of economy in China and the increasingly accelerated progress of urban construction, the number of garbage sweeper in cities is increasing continuously, especially in developed cities. Due to the lack of an effective management mechanism for the garbage sweeper, the safety awareness of a driver of the garbage sweeper is generally poor, and the number of traffic accidents caused by unreasonable driving due to poor braking performance of the garbage sweeper is increased continuously, so that huge economic loss and casualties are caused.
Therefore, it is necessary to provide a device for testing the braking performance of a road sweeper and a control system thereof to solve the above problems.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a device for testing the braking performance of a road garbage sweeper and a control system thereof, and solves the problems that the conventional garbage sweeper is poor in braking performance and is easy to cause huge economic loss and casualties.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme:
a road garbage sweeper braking performance testing device comprises a garbage sweeper, an accelerometer, a pressure sensor and a five-wheel instrument, wherein the accelerometer is installed in a cab of the garbage sweeper through an accelerometer fixing frame, the pressure sensor is installed at the wheel of the garbage sweeper, and the five-wheel instrument is installed at the tail of the garbage sweeper;
clamping plates are arranged in the middle of two sides of the accelerometer fixing frame, rubber pads are fixedly connected to the opposite sides of the two clamping plates, and a knob is arranged in the middle of the lower surface of the accelerometer fixing frame;
the middle of one side of the knob is fixedly connected with one end of a rotating shaft, the other end of the rotating shaft is inserted into the accelerometer fixing frame, the other end of the rotating shaft is fixedly connected with a driving gear, one side of the driving gear is meshed with a driven gear, the middle of the driven gear is fixedly connected with a bidirectional screw rod, two ends of the bidirectional screw rod are both in threaded connection with nuts, and one side of each nut is fixedly connected with a connecting rod;
the middle part of the back of the accelerometer fixing frame is fixedly connected with a fixing rod, and one end of the fixing rod is fixedly connected with a fixing block;
the upper surface of the fixed block is provided with an accommodating groove, one end of the bottom of the accommodating groove is fixedly connected with a limiting rod, the other end of the bottom of the accommodating groove is provided with a threaded rod, and the top end of the threaded rod is fixedly connected with a rotary handle;
the fixing plate is fixedly connected with the bottom end of one side of the fixing block, a movable plate is arranged above the fixing plate, a limiting hole is formed in one end of the movable plate, a threaded hole is formed in one end of the movable plate, and the threaded hole is located in one side of the limiting hole.
Optionally, both ends of the front bottom of the accelerometer fixing frame are fixedly connected with stop blocks, and the stop blocks and the accelerometer fixing frame are integrally formed.
Optionally, the two ends of the bidirectional screw rod penetrate through the driven gear, and the two ends of the bidirectional screw rod are movably connected with the inner wall of the accelerometer fixing frame through the rotating joint.
Optionally, one end of the connecting rod penetrates out of the accelerometer fixing frame, the connecting rod is L-shaped, and one end of the connecting rod is fixedly connected with the clamping plate.
Optionally, the top end of the limiting rod penetrates through the movable plate through the limiting hole, and the movable plate is connected with the limiting rod in a sliding mode.
Optionally, the bottom of threaded rod passes through rotary joint and fixed block swing joint, and the top of threaded rod runs through the fly leaf through the screw hole, threaded rod and fly leaf threaded connection.
The control system of the road garbage sweeper brake performance testing device comprises a single chip microcomputer, a microprocessor, a data comparison module and a data storage module, wherein the output ends of an accelerometer, a pressure sensor and a five-wheel instrument are electrically connected with the input end of the single chip microcomputer, and the connecting end of the single chip microcomputer is electrically connected with the connecting end of the microprocessor in a bidirectional mode;
the connecting end of the microprocessor is electrically connected with the connecting end of the data comparison module in a bidirectional mode, and the output end of the microprocessor is electrically connected with the output end of the data storage module.
Optionally, the accelerometer is EGAS3, the pressure sensor is WH136, the five-wheel instrument is M148521, the single chip microcomputer is an 80C51 single chip microcomputer, and the microprocessor is GS9021ACFUE 3.
Optionally, the output end of the single chip is electrically connected to the input end of the liquid crystal display.
(III) advantageous effects
The invention provides a road garbage sweeper braking performance testing device and a control system thereof, which have the following beneficial effects:
(1) the invention has simple structure, convenient test, vividly and intuitively displays all indexes of the braking performance of the garbage sweeper, and is convenient for an operator to effectively optimize the overall performance of the garbage sweeper.
(2) The accelerometer is capable of being installed and fixed through the matching use of the clamping plate, the rubber pad, the stop block, the knob, the rotating shaft, the driving gear, the driven gear, the two-way screw, the nut, the connecting rod, the fixing block, the accommodating groove, the limiting rod, the threaded rod, the rotating handle, the fixing plate and the movable plate, and the accelerometer is reasonable in structural design, simple to operate and convenient to disassemble and assemble.
Drawings
Fig. 1 is a schematic view of the structure of the accelerometer fixing frame of the present invention.
Fig. 2 is a schematic cross-sectional view of an accelerometer fixing frame structure according to the present invention.
Fig. 3 is a top view of the accelerometer fixture structure of the present invention.
Fig. 4 is a schematic side sectional view of the anchor block structure of the present invention.
FIG. 5 is a schematic view of the present invention;
FIG. 6 is a control system diagram of the present invention.
In the figure: 1. an accelerometer holder; 2. a splint; 3. a rubber pad; 4. a stopper; 5. a knob; 6. a rotating shaft; 7. a driving gear; 8. a driven gear; 9. a bidirectional screw; 10. a nut; 11. a connecting rod; 12. fixing the rod; 13. a fixed block; 14. accommodating grooves; 15. a limiting rod; 16. a threaded rod; 17. turning a handle; 18. a fixing plate; 19. a movable plate; 20. a limiting hole; 21. a threaded hole; 22. a garbage sweeper; 23. an accelerometer; 24. a pressure sensor; 25. a five-wheel instrument; 26. a single chip microcomputer; 27. a microprocessor; 28. a data comparison module; 29. a data storage module; 30. a liquid crystal display.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
In the present invention, unless otherwise expressly specified or limited, the terms "disposed," "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected or detachably connected; may be a mechanical connection; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The invention provides a device for testing the braking performance of a road garbage sweeper as shown in figures 1-5, which comprises a garbage sweeper 22, an accelerometer 23, a pressure sensor 24 and a five-wheel instrument 25, wherein the accelerometer 23 is arranged in a cab of the garbage sweeper 22 through an accelerometer fixing frame 1, the pressure sensor 24 is arranged at the wheel of the garbage sweeper 22, and the five-wheel instrument 25 is arranged at the tail of the garbage sweeper 22;
clamping plates 2 are arranged in the middle of two sides of the accelerometer fixing frame 1, rubber pads 3 are fixedly connected to the opposite sides of the two clamping plates 2, and a knob 5 is arranged in the middle of the lower surface of the accelerometer fixing frame 1;
the middle of one side of the knob 5 is fixedly connected with one end of a rotating shaft 6, the other end of the rotating shaft 6 is inserted into the accelerometer fixing frame 1, the other end of the rotating shaft 6 is fixedly connected with a driving gear 7, one side of the driving gear 7 is meshed with a driven gear 8, the middle of the driven gear 8 is fixedly connected with a bidirectional screw 9, two ends of the bidirectional screw 9 are both in threaded connection with nuts 10, one side of each nut 10 is fixedly connected with a connecting rod 11, one side of each nut 10, which is far away from the connecting rod 11, is fixedly connected with a sliding block, a sliding groove is formed in the inner wall of the accelerometer fixing frame 1, the sliding block is in sliding connection with the sliding groove, through the arrangement of the sliding block and the sliding groove;
the middle part of the back of the accelerometer fixing frame 1 is fixedly connected with a fixing rod 12, and one end of the fixing rod 12 is fixedly connected with a fixing block 13;
an accommodating groove 14 is formed in the upper surface of the fixed block 13, a limiting rod 15 is fixedly connected to one end of the bottom of the accommodating groove 14, a threaded rod 16 is arranged at the other end of the bottom of the accommodating groove 14, and a rotary handle 17 is fixedly connected to the top end of the threaded rod 16;
one side bottom fixedly connected with fixed plate 18 of fixed block 13, the top of fixed plate 18 is equipped with movable plate 19, and spacing hole 20 has been seted up to the one end of movable plate 19, and threaded hole 21 is located one side of spacing hole 20, can install fixedly accelerometer 23, and structural design is reasonable, easy operation, and the dismouting is convenient.
As an optional technical scheme of the invention:
the both ends of the positive bottom of accelerometer mount 1 are all fixedly connected with dog 4, dog 4 and accelerometer mount 1 integrated into one piece, rational in infrastructure.
As an optional technical scheme of the invention:
two ends of the bidirectional screw 9 penetrate through the driven gear 8, and two ends of the bidirectional screw 9 are movably connected with the inner wall of the accelerometer fixing frame 1 through rotating joints.
As an optional technical scheme of the invention:
one end of the connecting rod 11 penetrates out of the accelerometer fixing frame 1, the connecting rod 11 is L-shaped, and one end of the connecting rod 11 is fixedly connected with the clamping plate 2.
As an optional technical scheme of the invention:
the top end of the limiting rod 15 penetrates the movable plate 19 through the limiting hole 20, and the movable plate 19 is slidably connected with the limiting rod 15, so that the moving position of the movable plate 19 can be limited.
As an optional technical scheme of the invention:
the bottom end of the threaded rod 16 is movably connected with the fixed block 13 through a rotary joint, the top end of the threaded rod 16 penetrates through the movable plate 19 through the threaded hole 21, the threaded rod 16 is in threaded connection with the movable plate 19, and transmission is convenient.
The working principle is as follows: when installing accelerometer 23, install accelerometer mount 1 on the aviation baffle of air outlet in rubbish motor sweeper 22 driver's cabin earlier, rotate swing handle 17, swing handle 17 drives threaded rod 16 rotatory, threaded rod 16 drives movable plate 19 and moves down, fix accelerometer mount 1 on the aviation baffle through movable plate 19 and fixed plate 18, then put accelerometer 23 on accelerometer mount 1, rotate knob 5, knob 5 drives driving gear 7 through rotation axis 6 and rotates, driving gear 7 drives two-way screw 9 through driven gear 8 and rotates, two-way screw 9 drives connecting rod 11 through nut 10 and moves, connecting rod 11 drives splint 2 and moves, it is fixed to carry out the centre gripping to accelerometer 23 through two splint 2, structural design is reasonable, and easy operation, the dismouting is convenient.
The invention also provides a control system of the device for testing the braking performance of the road garbage sweeper as shown in FIG. 6, which comprises a single chip microcomputer 26, a microprocessor 27, a data comparison module 28 and a data storage module 29, wherein the output ends of the accelerometer 23, the pressure sensor 24 and the five-wheel instrument 25 are electrically connected with the input end of the single chip microcomputer 26, the connecting end of the single chip microcomputer 26 is electrically connected with the connecting end of the microprocessor 27 in a bidirectional way, and the single chip microcomputer 26 is electrically connected with a vehicle-mounted power supply;
the connecting end of the microprocessor 27 is electrically connected with the connecting end of the data comparison module 28 in a bidirectional mode, the output end of the microprocessor 27 is electrically connected with the output end of the data storage module 29, the structure is simple, the test is convenient, various indexes of the braking performance of the garbage sweeper 22 are visually and intuitively displayed, and an operator can conveniently and effectively optimize the overall performance of the garbage sweeper 22.
As an optional technical scheme of the invention:
the model of the accelerometer 23 is EGAS3, the model of the pressure sensor 24 is WH136, the model of the five-wheel instrument 25 is M148521, the 80C51 singlechip is adopted as the singlechip 26, and the model of the microprocessor 27 is GS9021ACFUE 3.
As an optional technical scheme of the invention:
the output end of the singlechip 26 is electrically connected with the input end of the liquid crystal display 30.
The working principle is as follows: when the test device is used, the single chip microcomputer 26 collects the initial speed of the garbage sweeper in real time, and then analyzes various collected data through the microprocessor 27 to obtain a calculation result so as to test the braking performance of the garbage sweeper 22. The test results are displayed in a report in tabular form. The program generates 3 different reports, the reports record the configuration parameters and curve chart of the vehicle, these data tables are displayed vividly through the liquid crystal display 30, the data comparison module 28 evaluates the braking performance of the garbage sweeper 22, the data storage module 29 stores the data, meanwhile, the system is provided with an RS232 interface, can be connected with an external printer, and can also send the test result to other equipment or computers, or is controlled by other main control computers, thus flexibly forming an online test system.
It is noted that in the present disclosure, unless otherwise explicitly specified or limited, a first feature "on" or "under" a second feature may be directly contacted with the first and second features, or indirectly contacted with the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (4)
1. The utility model provides an urban road rubbish motor sweeper braking capability test device, includes rubbish motor sweeper (22), accelerometer (23), pressure sensor (24) and five rounds of appearance (25), its characterized in that: the accelerometer (23) is arranged in a cab of the garbage sweeper (22) through an accelerometer fixing frame (1), the pressure sensor (24) is arranged at the wheel of the garbage sweeper (22), and the five-wheel instrument (25) is arranged at the tail of the garbage sweeper (22);
clamping plates (2) are arranged in the middle of two sides of the accelerometer fixing frame (1), a rubber pad (3) is fixedly connected to one side, opposite to the two clamping plates (2), of the accelerometer fixing frame, and a knob (5) is arranged in the middle of the lower surface of the accelerometer fixing frame (1); the middle of one side of the knob (5) is fixedly connected with one end of a rotating shaft (6), the other end of the rotating shaft (6) is inserted into the accelerometer fixing frame (1), the other end of the rotating shaft (6) is fixedly connected with a driving gear (7), one side of the driving gear (7) is meshed with a driven gear (8), the middle of the driven gear (8) is fixedly connected with a bidirectional screw (9), two ends of the bidirectional screw (9) are both in threaded connection with nuts (10), and one side of each nut (10) is fixedly connected with a connecting rod (11); one side of the nut (10) far away from the connecting rod (11) is fixedly connected with a sliding block, the inner wall of the accelerometer fixing frame (1) is provided with a sliding groove, and the sliding block is connected with the sliding groove in a sliding manner; two ends of the bidirectional screw (9) penetrate through the driven gear (8), and two ends of the bidirectional screw (9) are movably connected with the inner wall of the accelerometer fixing frame (1) through rotating joints; one end of the connecting rod (11) penetrates through the accelerometer fixing frame (1), the connecting rod (11) is L-shaped, and one end of the connecting rod (11) is fixedly connected with the clamping plate (2);
the two ends of the bottom of the front side of the accelerometer fixing frame (1) are fixedly connected with stop blocks (4), and the stop blocks (4) and the accelerometer fixing frame (1) are integrally formed;
a fixed rod (12) is fixedly connected to the middle of the back of the accelerometer fixing frame (1), and a fixed block (13) is fixedly connected to one end of the fixed rod (12);
an accommodating groove (14) is formed in the upper surface of the fixing block (13), a limiting rod (15) is fixedly connected to one end of the bottom of the accommodating groove (14), a threaded rod (16) is arranged at the other end of the bottom of the accommodating groove (14), and a rotating handle (17) is fixedly connected to the top end of the threaded rod (16); a fixed plate (18) is fixedly connected to the bottom end of one side of the fixed block (13), a movable plate (19) is arranged above the fixed plate (18), a limiting hole (20) is formed in one end of the movable plate (19), a threaded hole (21) is formed in one end of the movable plate (19), and the threaded hole (21) is located on one side of the limiting hole (20); the top end of the limiting rod (15) penetrates through the movable plate (19) through the limiting hole (20), and the movable plate (19) is connected with the limiting rod (15) in a sliding mode; the bottom of threaded rod (16) passes through rotary joint and fixed block (13) swing joint, and the top of threaded rod (16) runs through fly leaf (19) through screw hole (21), threaded rod (16) and fly leaf (19) threaded connection.
2. The control system of the braking performance testing device of the urban road garbage sweeper according to claim 1, comprising a single chip microcomputer (26), a microprocessor (27), a data comparison module (28) and a data storage module (29), and is characterized in that: the output ends of the accelerometer (23), the pressure sensor (24) and the five-wheel instrument (25) are electrically connected with the input end of the single chip microcomputer (26), and the connecting end of the single chip microcomputer (26) is electrically connected with the connecting end of the microprocessor (27) in a bidirectional mode;
the connecting end of the microprocessor (27) is in bidirectional electric connection with the connecting end of the data comparison module (28), and the output end of the microprocessor (27) is in electric connection with the output end of the data storage module (29).
3. The control system of claim 2, wherein: the model of the accelerometer (23) is EGAS3, the model of the pressure sensor (24) is WH136, the model of the five-wheel instrument (25) is M148521, the singlechip (26) adopts an 80C51 singlechip, and the model of the microprocessor (27) is GS9021ACFUE 3.
4. The control system of claim 2, wherein: the output end of the singlechip (26) is electrically connected with the input end of the liquid crystal display (30).
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| CN201910371482.4A CN110044641B (en) | 2019-05-06 | 2019-05-06 | Road garbage sweeper braking performance testing device and control system thereof |
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