CN201697789U - Dynamic property and traction force measuring device for low-speed large-torque engineering truck - Google Patents
Dynamic property and traction force measuring device for low-speed large-torque engineering truck Download PDFInfo
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- CN201697789U CN201697789U CN2010202315554U CN201020231555U CN201697789U CN 201697789 U CN201697789 U CN 201697789U CN 2010202315554 U CN2010202315554 U CN 2010202315554U CN 201020231555 U CN201020231555 U CN 201020231555U CN 201697789 U CN201697789 U CN 201697789U
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Abstract
The utility model relates to a dynamic property and traction force measuring device for a low-speed large-torque engineering truck, comprising a frame, an eddy current dynamometer, a speed increase machine, a speed sensor, a force measurement sensor, two pairs of linked driving rollers and driven rollers and a control system, wherein the speed sensor and the force measurement sensor are arranged on the eddy current dynamometer; the driving rollers and the driven rollers are parallelly arranged on the frame; the eddy current dynamometer is connected to one ends of the driving rollers, and the speed increase machine is connected between the eddy current dynamometer and the driving rollers; and the eddy current dynamometer and the speed increase machine are electrically connected with the control system. The dynamic property and traction force measuring device for the low speed large-torque engineering truck is rapid, accurate, economic and safe in detection, is not limited by outer environment conditions and has good repetitiveness while satisfying direct and simple and convenient dynamic property detection of a vehicle and truly reflecting the dynamic performance of the vehicle during actual traveling, and can measure the traction force and the maximum gradability and display both before people by using a matrix screen, thereby being convenient for people to know the traction force of the engineering truck and simultaneously know the maximum gradability clearly and intuitively.
Description
Technical field
The utility model relates to the vehicle measurement mechanism, relates in particular to a kind of low-speed big engineering truck dynamic property and tractive force measurement mechanism.
Background technology
The dynamic property of vehicle is the basic usability of vehicle, and the height of the conevying efficiency of vehicle depends on the dynamic property of vehicle to a great extent.This is that the transportation throughput rate of vehicle is just high more because the averaging speed of vehicle ' is high more.And the main factor that influences averaging speed is exactly the dynamic property of vehicle.
The demand of social engineering vehicle is increasing now, and it is also rarely found to be used for the equipment that this dynamic property detects, and is the detection method of the road examination of usefulness mostly.Actual road test is subjected to the influence of factors such as road conditions, wind direction, wind speed, driving technology, and these factor poor controllability, also needs in accordance with regulations condition to select or build special road etc. for use simultaneously.
Tractive force is concerning the height of vehicle acceleration, and peak acceleration is the important indicator of vehicle power.General dynamometer machine can directly not show tractive force when measuring, and has only when vehicle towed power during greater than resistance due to climbing and resistance to rolling (air resistance is disregarded), and vehicle just can be climbed up the slope.The size that is to say tractive force also direct relation the climbable gradient of vehicle.For engineering truck, climbable gradient is a very important detection index.So the tractive force of measuring vehicle is very important.
The general multi-purpose chassis dynamometer machine of desk-top detection.It is a kind of puzzled health check-up performance detection equipment of validating the car, and the method by vehicle simulated roadway driving cycle on indoor stand detects dynamic property, and its also power of measuring vehicle just, and ignored the traction force measurement.
The utility model content
The purpose of this utility model provides a kind of low-speed big engineering truck dynamic property and tractive force measurement mechanism, not only satisfy the engineering truck dynamic property detect directly perceived, easy, when can truly reflect the power performance of vehicle in the vehicle actual travel process, also can be convenient for people to understand the size of the tractive force of vehicle, simultaneously max. climb slope also be had clear and intuitive understanding.
For achieving the above object, the utility model provides a kind of low-speed big engineering truck dynamic property and tractive force measurement mechanism, comprise: frame, current vortex machine, raising speed machine, be arranged on speed pickup and the force cell on the current vortex machine, the drive roll that is set in parallel in two pairs of interlocks on the frame, driven cylinder and control system, the current vortex machine is connected drive roll one end, the raising speed machine is connected between current vortex machine and the drive roll, and current vortex machine, raising speed machine and control system electrically connect.
Drive roll and driven cylinder couple together by the chain wheel mode, are provided with raising board between drive roll and the driven cylinder, and the two ends of raising board respectively are provided with a grade roller.
Frame the place ahead is provided with a stayed mast, and the frame correspondence is provided with a fluting, and stayed mast is located in the fluting, and stayed mast is provided with a pulling force sensor away from an end of frame, and an end of close frame is provided with a thick stick.
Also comprise the flywheel group, its relative current vortex machine is located at the other end of drive roll, is connected by shaft coupling on the cylinder axis of drive roll.
One direct-flow magnet exciting coil that is provided with its rotor coaxial is housed on the described current vortex machine.
The beneficial effects of the utility model are: low-speed big engineering truck dynamic property of the present utility model and tractive force measurement mechanism, it is a kind of bench type pick-up unit, special is that engineering truck is designed, its satisfy the vehicle power detection directly perceived, easy, can truly reflect the power performance of vehicle in the vehicle actual travel process in, check rapider, accurate, economy, safety, and be not subjected to the restriction of external condition, repeatability better; And can with the tractive force of vehicle and max. climb slope be measured and be presented in face of the people with the dot matrix screen, be convenient for people to understand the size of the tractive force of engineering truck, simultaneously max. climb slope also there is clear and intuitive understanding.
In order further to understand feature of the present utility model and technology contents, see also following about detailed description of the present utility model and accompanying drawing, yet accompanying drawing only provide with reference to and the explanation usefulness, be not to be used for the utility model is limited.
Description of drawings
Below in conjunction with accompanying drawing,, will make the technical solution of the utility model and other beneficial effects apparent by embodiment of the present utility model is described in detail.
In the accompanying drawing,
Fig. 1 is the structural representation of the utility model low-speed big engineering truck dynamic property and tractive force measurement mechanism;
Fig. 2 is the stayed mast structural representation in the utility model;
Fig. 3 is the vertical view of Fig. 2.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in detail.
As shown in Figure 1, the utility model low-speed big engineering truck dynamic property and tractive force measurement mechanism, it is a kind of bench type measurement mechanism, it comprises: frame 1, current vortex machine 2, raising speed machine 3, be arranged on speed pickup 4 and force cell 5 on the current vortex machine 2, be set in parallel in two pairs of interlocks on the frame 1 drive roll 6 and, moving cylinder 7 and control system (not shown), also comprise flywheel group 8.Described current vortex machine 2, raising speed machine 3, drive roll 6 and flywheel group 8 adopt the parallel lines layout, are convenient to the transmission and the installation of power.Force cell 5 is connected on the current vortex machine 2 by a dynamometer link (not indicating).The circuit structure of control system and the circuit between said elements connect can pass through existing techniques in realizing.
Described drive roll 6 is connected on the frame 1 with the bearing 11 of driven cylinder 7 by its two ends, pass through the 12 parallel connections of cylinder axis between two drive rolls 6, and drive roll 6 couples together by the chain wheel mode with driven cylinder 7, be provided with raising board 9 between drive roll 6 and the driven cylinder 7, the two ends of raising board 9 respectively are provided with grade roller 90.Described current vortex machine 2 is located at an end of drive roll 6, raising speed machine 3 is located between current vortex machine 2 and the drive roll 6, and flywheel group 8 relative current vortex machines 2 are located at the other end of drive roll 6, and current vortex machine 2, raising speed machine 3 and flywheel group 8 are connected on the cylinder axis 12 by shaft coupling 13.
Frame 1 the place ahead is provided with a stayed mast 10 (shown in Fig. 2-3), frame 1 correspondence is provided with a fluting (not shown), stayed mast 10 is located in the fluting, and stayed mast 10 is provided with a pulling force sensor (not shown) away from an end of frame, and an end of close frame is provided with a thick stick (not shown).This thick stick is used for applying a fixation power to stayed mast 10, makes pulling force sensor also can be subjected to the effect of power when stayed mast 10 is subjected to the vehicle pulling force, and the output pulse signal of pulling force sensor is directly proportional with the pulling force size that stayed mast 10 is subjected to.When vehicle reaches the utility model measurement mechanism and measures, measuring forefathers are stayed mast 10 is fixed on the pallet fork.The driver promotes pallet fork then, give 10 1 power of stayed mast, draw force cell also to be subjected to this power simultaneously, when the suffered power of pallet fork had reached the given power (coming the specified lifting of model engineering vehicle like this) of software, at this moment notice board will point out the driver to begin the operation of other steps.When measurement mechanism of the present utility model can also prevent car brakeing, the unexpected locking of wheel, vehicle is because the former thereby measurement mechanism that flies out of inertia.
During measurement, automobile reaches testing table, be supported on drive roll 6 and the driven cylinder 7, after all are ready, display screen can point out the driver that the speed of a motor vehicle is reached a value, so wheel drives drive roll 6 and rotates with driven cylinder 7, thereby the transport condition of simulating vehicle on road, do not have under the situation of slippage with driven cylinder 7 surfaces at doughnut and drive roll 6, drive roll 6 is exactly the travel speed of automobile with driven cylinder 7 linear resonance surface velocities, and the rotating speed of measuring drive roll 6 and driven cylinder 7 promptly can converse the travel speed of automobile.Vehicle itself just has certain inertia energy when travels down, kinetic energy just, and the translation inertia of the vehicle during vehicle ' self and the moment of inertia of non-driving wheel are simulated with the inertia system of flywheel group 8.Vehicle drives drive roll 6 and rotates 7 with driven cylinder, and drive roll 6 links to each other with raising speed machine 3, and the gear ratio by raising speed machine 3 is converted to low-speed big and is fit to the permanent rotating speed that current vortex machine 2 is worked, and makes its operate as normal.The speed of a motor vehicle remains a constant speed.Load the resistance of simulating vehicle when the travels down by current vortex machine 2, the inductor shape on the armature spindle of current vortex machine 2 is equipped with a direct current field coil (not shown) just as gear with rotor coaxial.When the direct-flow magnet exciting coil group passes to DC current, just there is magnetic field to exist around it, just produce a closed magnetic flux around the excitation group so, clearly, the inductor that is positioned at the winding left side has a polarity, and the right side has opposite polarity.During rotation, owing to the cyclical variation of the close value of magnetic produces eddy current, the magnetic field that this eddy current produces is with the magnetic field interaction that produces it, thereby produce with by the reverse braking moment of test-run a machine, this moment acts on the force cell 5 by the arm of force, the size of force cell 5 output simulating signals is directly proportional with the size of braking moment, make the armature swing, by the arm of force on the armature, damping force is passed to measurement mechanism, thereby come the simulated roadway resistance.The signal of drum rotation speed is to finish with the speed probe output pulse signal that is installed in drive roll 6, and the height of pulsed frequency is directly proportional with drum rotation speed.According to P=T*N/9550, just can draw power.In the formula: T is moment of torsion (N*m), and N is rotating speed (rpm/min), again because P=F*V under the situation of having known P and V (speed), just can measure the size of F (tractive force).
If the fully loaded quality of vehicle is G, establishing ramp angle is @, ignores road frictional resistance, tractive force should equal fully loaded vehicle (fully loaded by the stayed mast simulation) at the sliding force aspect the gradient, be F=9.8*G*sin (@), Na Me @=arcsin (9.8*G/F), climbable gradient=tan (@) * 100.
Tractive force, max. climb slope, power and moment of torsion can real-time showing on display screen.After measuring end, display screen prompting driver opens vehicle from measurement mechanism, and the raising board 9 between drive roll 6 and the driven cylinder 7 gives rise to its extreme higher position simultaneously, and vehicle just can leave measurement mechanism very smoothly like this.
In sum, low-speed big engineering truck dynamic property of the present utility model and tractive force measurement mechanism, it is a kind of bench type pick-up unit, special is that engineering truck is designed, its satisfy the vehicle power detection directly perceived, easy, can truly reflect the power performance of vehicle in the vehicle actual travel process in, check rapider, accurate, economy, safety, and be not subjected to the restriction of external condition, repeatability better; And can with the tractive force of vehicle and max. climb slope be measured and be presented in face of the people with the dot matrix screen, be convenient for people to understand the size of the tractive force of engineering truck, simultaneously max. climb slope also there is clear and intuitive understanding.
The above; for the person of ordinary skill of the art; can make other various corresponding changes and distortion according to the technical solution of the utility model and technical conceive, and all these changes and distortion all should belong to the protection domain of the utility model accompanying Claim.
Claims (5)
1. low-speed big engineering truck dynamic property and tractive force measurement mechanism, it is characterized in that, comprise: frame, current vortex machine, raising speed machine, be arranged on speed pickup and the force cell on the current vortex machine, the drive roll that is set in parallel in two pairs of interlocks on the frame, driven cylinder and control system, the current vortex machine is connected drive roll one end, the raising speed machine is connected between current vortex machine and the drive roll, and current vortex machine, raising speed machine and control system electrically connect.
2. low-speed big engineering truck dynamic property according to claim 1 and tractive force measurement mechanism, it is characterized in that, drive roll and driven cylinder couple together by the chain wheel mode, are provided with raising board between drive roll and the driven cylinder, and the two ends of raising board respectively are provided with a grade roller.
3. low-speed big engineering truck dynamic property according to claim 1 and tractive force measurement mechanism, it is characterized in that, frame the place ahead is provided with a stayed mast, the frame correspondence is provided with a fluting, stayed mast is located in the fluting, stayed mast is provided with a pulling force sensor away from an end of frame, and an end of close frame is provided with a thick stick.
4. low-speed big engineering truck dynamic property according to claim 1 and tractive force measurement mechanism is characterized in that, also comprise the flywheel group, and its relative current vortex machine is located at the other end of drive roll, are connected by shaft coupling on the cylinder axis of drive roll.
5. low-speed big engineering truck dynamic property according to claim 1 and tractive force measurement mechanism is characterized in that, described current vortex machine is equipped with a direct-flow magnet exciting coil that is provided with its rotor coaxial.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202315554U CN201697789U (en) | 2010-06-21 | 2010-06-21 | Dynamic property and traction force measuring device for low-speed large-torque engineering truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202315554U CN201697789U (en) | 2010-06-21 | 2010-06-21 | Dynamic property and traction force measuring device for low-speed large-torque engineering truck |
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| Publication Number | Publication Date |
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| CN201697789U true CN201697789U (en) | 2011-01-05 |
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| CN2010202315554U Expired - Lifetime CN201697789U (en) | 2010-06-21 | 2010-06-21 | Dynamic property and traction force measuring device for low-speed large-torque engineering truck |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102967472A (en) * | 2012-11-01 | 2013-03-13 | 中国煤炭科工集团太原研究院 | Testing table for testing comprehensive performance of anti-explosion rubber-tyred vehicle |
| CN103308319A (en) * | 2012-03-14 | 2013-09-18 | 中国农业机械化科学研究院 | Simulation test loading equipment for aircraft tractor and method thereof |
| CN103487264A (en) * | 2013-10-14 | 2014-01-01 | 中国农业大学 | Testing device for single-wheel traction performance |
| CN107560872A (en) * | 2017-09-06 | 2018-01-09 | 深圳市安车检测股份有限公司 | Tractor combined test stand and tractor method for comprehensive detection |
| CN108956165A (en) * | 2018-08-21 | 2018-12-07 | 杭叉集团股份有限公司 | A kind of tire rolling resistance coefficient determination experimental rig |
-
2010
- 2010-06-21 CN CN2010202315554U patent/CN201697789U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103308319A (en) * | 2012-03-14 | 2013-09-18 | 中国农业机械化科学研究院 | Simulation test loading equipment for aircraft tractor and method thereof |
| CN103308319B (en) * | 2012-03-14 | 2015-09-09 | 中国农业机械化科学研究院 | Aircraft tractor simulation test loading equipemtn |
| CN104964828A (en) * | 2012-03-14 | 2015-10-07 | 中国农业机械化科学研究院 | Aircraft tractor simulation test loading method |
| CN104964828B (en) * | 2012-03-14 | 2017-06-16 | 中国农业机械化科学研究院 | Aircraft tractor simulation test loading method |
| CN102967472A (en) * | 2012-11-01 | 2013-03-13 | 中国煤炭科工集团太原研究院 | Testing table for testing comprehensive performance of anti-explosion rubber-tyred vehicle |
| CN102967472B (en) * | 2012-11-01 | 2015-05-13 | 中国煤炭科工集团太原研究院 | Testing table for testing comprehensive performance of anti-explosion rubber-tyred vehicle |
| CN103487264A (en) * | 2013-10-14 | 2014-01-01 | 中国农业大学 | Testing device for single-wheel traction performance |
| CN107560872A (en) * | 2017-09-06 | 2018-01-09 | 深圳市安车检测股份有限公司 | Tractor combined test stand and tractor method for comprehensive detection |
| CN108956165A (en) * | 2018-08-21 | 2018-12-07 | 杭叉集团股份有限公司 | A kind of tire rolling resistance coefficient determination experimental rig |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHENZHEN ANCHE DETECTION CO., LTD. Free format text: FORMER NAME: SHENZHEN ANCHE DETECTION TECHNOLOGY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: Building No. 188 Shennan Road, Nanshan District Grand View of Shenzhen city in Guangdong province 518000 14 floor Patentee after: Shenzhen Anche Inspection Co., Ltd. Address before: Building No. 188 Shennan Road, Nanshan District Grand View of Shenzhen city in Guangdong province 518000 14 floor Patentee before: Shenzhen Anche Enterprise Technology Co.,Ltd. |
|
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 518000 T3 factory building, Nanshan District hi tech Industrial Village, Guangdong, Shenzhen, T3b5-b02 Patentee after: Shenzhen Anche Inspection Co., Ltd. Address before: Building No. 188 Shennan Road, Nanshan District Grand View of Shenzhen city in Guangdong province 518000 14 floor Patentee before: Shenzhen Anche Inspection Co., Ltd. |
|
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 518000, room 4, building 901, Shenzhen Software Park, two road, Nanshan District science and technology, Guangdong, Shenzhen, China Patentee after: Shenzhen Anche Inspection Co., Ltd. Address before: 518000 T3 factory building, Nanshan District hi tech Industrial Village, Guangdong, Shenzhen, T3b5-b02 Patentee before: Shenzhen Anche Inspection Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110105 |