CN111207865A - Chassis dynamometer - Google Patents
Chassis dynamometer Download PDFInfo
- Publication number
- CN111207865A CN111207865A CN202010105689.XA CN202010105689A CN111207865A CN 111207865 A CN111207865 A CN 111207865A CN 202010105689 A CN202010105689 A CN 202010105689A CN 111207865 A CN111207865 A CN 111207865A
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- frame
- fixedly connected
- air
- backup pad
- roller
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L3/00—Measuring torque, work, mechanical power, or mechanical efficiency, in general
- G01L3/24—Devices for determining the value of power, e.g. by measuring and simultaneously multiplying the values of torque and revolutions per unit of time, by multiplying the values of tractive or propulsive force and velocity
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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)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The invention relates to a chassis dynamometer, which comprises a frame, a driving roller and a driven roller which are arranged in the frame in parallel, wherein one end of the driving roller along the length direction is in transmission connection with a power device, the other end of the driving roller is fixedly connected with a chain wheel, the outer side of the chain wheel is meshed with a chain, the driven roller is in transmission connection with the driving roller through the chain, a lifting device is arranged between the driving roller and the driven roller, the lifting device comprises a hydraulic cylinder and a lifting plate which are fixed in the frame, and one end of a piston rod of the hydraulic cylinder is fixedly connected with the lifting plate. One side of frame is provided with air-dries the device, air-dries the device and includes the air-blower and set up the backup pad in the air-blower top, and the air-blower is fixed in the frame and towards the backup pad setting, and fixed connection can be dismantled with the frame to the backup pad, has seted up a plurality of vents in the backup pad. The strong exhaust effect of the air blower can blow the tire with water, so that the friction force of the wheel is consistent with that of the wheel during drying, and the detection precision is increased.
Description
Technical Field
The invention relates to the technical field of automobile detection equipment, in particular to a chassis dynamometer.
Background
The chassis dynamometer is an indoor bench test device for testing performances such as automobile dynamic property, multi-working condition emission indexes, fuel indexes and the like. The automobile chassis dynamometer simulates a road surface through a roller, calculates a road simulation equation, and simulates each working condition of an automobile by using a loading device.
In the prior art, as disclosed in chinese patent publication No. CN207351694U, a chassis dynamometer for a vehicle is disclosed, which includes: the first rotating piece, the second rotating piece and the third rotating piece are arranged at intervals in sequence along the longitudinal direction of the vehicle, and the first rotating piece, the second rotating piece and the third rotating piece are suitable for being in contact with different wheels arranged at intervals in the longitudinal direction of the vehicle respectively. According to the novel chassis dynamometer for the vehicle in practical use, the first rotating piece, the second rotating piece and the third rotating piece are arranged, so that multiple multi-axle vehicles can be detected, such as a 6 × 2 flat car, a 6 × 2 tractor, an 8 × 4 dump truck and the like, the multi-axle vehicles can be three-axle vehicles or four-axle vehicles, and the detection of parameters such as vehicle dynamic performance, multi-working-condition emission indexes, fuel indexes and the like of most medium-heavy vehicles can be realized.
The above prior art solutions have the following drawbacks: although the chassis dynamometer described above is capable of testing a variety of multi-axis vehicles, in a real-world testing situation, some rain inevitably adheres to the tires of the vehicle if it encounters rainy weather. When the vehicle is driven over the first, second and third rotating members, the frictional force between the tire and the rotating members may be reduced due to rain on the vehicle tire. When the vehicle dynamic property, the multi-working condition emission index, the fuel index and other performance parameters of the vehicle are detected, the friction force is reduced, so that the phenomenon that the tire and the rotating part slip easily occurs is avoided, and the detection precision is reduced.
Disclosure of Invention
In view of the defects in the prior art, one of the purposes of the invention is to provide a chassis dynamometer capable of improving detection precision.
The above object of the present invention is achieved by the following technical solutions:
a chassis dynamometer comprises a frame, a driving roller and a driven roller which are arranged in the frame in parallel, wherein the driving roller is connected with a power device along one end of the driving roller in the length direction in a transmission manner, the other end of the driving roller is fixedly connected with a chain wheel, the outer side of the chain wheel is meshed with a chain, the driven roller is connected with the driving roller in a transmission manner through the chain, a lifting device is arranged between the driving roller and the driven roller and comprises a hydraulic cylinder and a lifting plate which are fixed in the frame, and one end of a piston rod of the hydraulic cylinder is fixedly connected with the lifting plate;
one side of frame is provided with air-dries the device, air-dry the device and include the air-blower and set up the backup pad of air-blower top, the air-blower is fixed just towards in the frame the backup pad sets up, the backup pad with fixed connection can be dismantled to the frame, a plurality of vents have been seted up in the backup pad.
Through above-mentioned technical scheme, when detecting performance isoparametric such as vehicle dynamic nature, the multistation emission index and the fuel index to the vehicle, if when having attached to the rainwater on rainy weather or the vehicle tire, open the vehicle earlier to air-dry on the device for take the water tire to stop to in the backup pad. Then the blower is turned on, so that the blower generates high wind force to act on the tire with water through the ventilation opening, and the tire with water can be dried by strong wind energy. The vehicle front wheel is slowly started to move the table after the tire is dried, so that the vehicle wheel support is arranged on the roller, the vehicle is hung at a neutral position at the moment, and the table top of the vehicle tire is in contact with the driving roller and the driven roller after the lifting plate descends by driving the hydraulic cylinder. And finally, driving a power device to enable the driving roller and the driven roller to rotate, and driving the vehicle tire to rotate for detection. The strong air exhaust effect of the air blower can blow the tire with water, so that the friction force of the wheel is consistent with that of the wheel during drying, the detection precision is improved, and the actual problem that the numerical value of the vehicle is inaccurate during detection in rainy days is effectively solved. Simultaneously, after drying the rainwater on the tire or clearing up the dust for during the measurement, avoided rainwater or dust on the tire to get into the inside of dynamometer machine from the gap between initiative cylinder and the driven cylinder and produced the destruction to the instrument, increased the life of dynamometer machine. And make the inside clear state that keeps all the time of dynamometer machine, reduced the inside number of times of clearance dynamometer machine, saved manpower and materials when improving work efficiency.
The present invention in a preferred example may be further configured to: the below of backup pad is provided with the dust guard, the dust guard is kept away from the perpendicular fixedly connected with limiting plate in one side border department of backup pad, the inboard border department integrated into one piece fixedly connected with of frame supplies the limiting plate inlays the spacing groove of establishing, the dust guard sets up the air-blower with between the backup pad.
Through the technical scheme, the supporting plate can be opened in fine days, then the dust guard is placed in the frame, the limiting plate is embedded and fixed in the limiting groove, and the dust guard is fixed between the air blower and the supporting plate at the moment. The external dust is not easy to enter the air blower, and the service life of the air blower is prolonged. In rainy days, the dust guard can be taken out of the frame, then the air blower is opened, so that strong exhaust air generated by the air blower can penetrate through the ventilation opening in the supporting plate to act on the tire with water, the tire with water is conveniently dried, and the friction force of the wheel is kept consistent with that of the wheel in dry sunny days.
The present invention in a preferred example may be further configured to: one side of the frame is fixedly connected with a plurality of hinges through bolts, and one end of each hinge, which is far away from the frame, is fixedly connected with the edge of one side of the supporting plate;
the hinge is kept away from to the backup pad one end fixedly connected with a plurality of connecting plates, threaded connection has the mounting on the connecting plate, the mounting passes the connecting plate with fixed connection can be dismantled to the frame.
Through above-mentioned technical scheme, when needs maintenance air-blower or need take out the dust guard, the pine mounting of unscrewing makes connecting plate and frame separation, then rotates the backup pad, and the one end that the connecting plate was kept away from to the backup pad rotates round the hinge, is convenient for take out the dust guard.
The present invention in a preferred example may be further configured to: the power device comprises a motor and a first gear fixed on an output shaft of the motor, a main roller shaft is fixedly connected in the driving roller in an integrated forming mode, a second gear is fixedly connected to one end of the main roller shaft along the length direction of the main roller shaft, and the first gear is meshed with the second gear.
Through above-mentioned technical scheme, during the detection, driving motor rotates, makes its output shaft drive first gear and rotates, first gear and second gear intermeshing. The second gear rotates to enable the main roller shaft to drive the driving roller to rotate, so that the rotation of a vehicle tire is realized, the power of the motor can be efficiently transmitted on the tire, the utilization rate of energy is improved, and the detection precision is improved.
The present invention in a preferred example may be further configured to: an auxiliary roller shaft is fixedly connected into the driven roller in an integrated mode, and a coupler is arranged at one end of the auxiliary roller shaft in the length direction.
Through the technical scheme, the coupler is used as a safety device for preventing the auxiliary roller shaft from bearing overlarge load, and the overload protection effect is achieved.
The present invention in a preferred example may be further configured to: and the part, extending out of one end of the driven roller, far away from each other is connected with a torque sensor through the coupler.
Through the technical scheme, when the tire of the vehicle is detected on the dynamometer, the driving roller and the driven roller drive the tire to rotate, and when the rotating tire is braked, the tire of the wheel exerts a counter-acting force which is opposite to the braking force direction and is equivalent to the braking force direction on the surface tangential direction of the rollers, so that the rollers are prevented from rotating. At the moment, under the action of the reaction moment, the motor and the main roller shaft deflect towards the opposite direction of the rotation of the roller, the part of the auxiliary roller shaft extending out of the roller is connected with a torque sensor through a coupler, the torque sensor generates input, and a measuring system measures the torque and converts the torque into braking force.
The present invention in a preferred example may be further configured to: the driving roller and the driven roller are symmetrically arranged along the central axis of the frame.
Through the technical scheme, when the dynamic property of the automobile is detected, the dynamometer can detect two tires on one side of the automobile simultaneously, and the detection precision is improved while the working efficiency is increased.
The present invention in a preferred example may be further configured to: the outer surfaces of the driving roller and the driven roller are uniformly and fixedly connected with anti-skid protrusions.
Through the technical scheme, when the tire rotates between the driving roller and the driven roller, the anti-skidding protrusions increase the friction force between the roller and the tire surface of the vehicle tire, the phenomenon of tire skidding is prevented, and the detection precision of the braking force of the vehicle is further improved.
In summary, the invention includes at least one of the following beneficial technical effects:
1. the strong air exhaust effect of the air blower can blow the tire with water, so that the friction force of the wheel is consistent with that of the wheel during drying, the detection precision is improved, and the actual problem that the numerical value of the vehicle is inaccurate during detection in rainy days is effectively solved. Simultaneously, after drying the rainwater on the tire or clearing up the dust for during the measurement, avoided rainwater or dust on the tire to get into the inside of dynamometer machine from the gap between initiative cylinder and the driven cylinder and produced the destruction to the instrument, increased the life of dynamometer machine. And make the inside clear state that keeps all the time of dynamometer machine, reduced the inside number of times of clearance dynamometer machine, saved manpower and materials when improving work efficiency.
2. In sunny days, the supporting plate can be opened, then the dust guard is placed in the frame, the limiting plate is embedded and fixed in the limiting groove, and the dust guard is fixed between the air blower and the supporting plate at the moment. The external dust is not easy to enter the air blower, and the service life of the air blower is prolonged. In rainy days, the dust guard can be taken out of the frame, then the air blower is opened, so that strong exhaust air generated by the air blower can penetrate through the ventilation opening in the supporting plate to act on the tire with water, the tire with water is conveniently dried, and the friction force of the wheel is kept consistent with that of the wheel in dry sunny days.
3. When the tyre of the vehicle is detected on the dynamometer, the driving roller and the driven roller drive the tyre to rotate, and when the rotating tyre is braked, the tyre of the wheel exerts a counter-acting force which is opposite to the braking force direction and is equivalent to the braking force direction on the surface tangential direction of the roller, so that the roller is prevented from rotating. At the moment, under the action of the reaction moment, the motor and the main roller shaft deflect towards the opposite direction of the rotation of the roller, the part of the auxiliary roller shaft extending out of the roller is connected with a torque sensor through a coupler, the torque sensor generates input, and a measuring system measures the torque and converts the torque into braking force.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Reference numerals: 1. a frame; 11. a hinge; 2. a driving roller; 21. a motor; 22. a first gear; 23. a main drum shaft; 24. a second gear; 25. anti-skid projections; 3. a driven drum; 31. a secondary drum shaft; 32. a coupling; 33. a torque sensor; 4. a sprocket; 5. a chain; 6. a lifting plate; 7. an air drying device; 71. a blower; 72. a support plate; 721. a connecting plate; 722. a fixing member; 73. a vent; 74. a dust guard.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, the chassis dynamometer disclosed by the invention comprises a frame 1, and a cylindrical driving roller 2 and a cylindrical driven roller 3 which are arranged in the frame 1 in parallel, wherein one end of the driving roller 2 along the length direction is in transmission connection with a power device. The power device comprises a motor 21 and a first gear 22 fixed on an output shaft of the motor 21, a main roller shaft 23 is fixedly connected in the driving roller 2 in an integrated mode, a second gear 24 is fixedly connected to one end of the main roller shaft 23 in the length direction, and the first gear 22 is meshed with the second gear 24.
During detection, the driving motor 21 rotates, so that the output shaft of the driving motor drives the first gear 22 to rotate, and the first gear 22 is meshed with the second gear 24. The second gear 24 rotates to enable the main roller shaft 23 to drive the driving roller 2 to rotate, so that the rotation of the vehicle tire is realized, the power of the motor 21 can be efficiently transmitted on the tire, the utilization rate of energy is improved, and the detection precision is improved. And the driving roller 2 and the driven roller 3 are symmetrically arranged along the central axis of the rack, so that when the braking force of the automobile is detected, the dynamometer can simultaneously detect two tires on one side of the automobile, and the detection precision is improved while the working efficiency is increased.
Further, referring to fig. 1, one end of the driving roller 2 far away from the power device is fixedly connected with a chain wheel 4, the outer side of the chain wheel 4 is engaged with a chain 5, the driven roller 3 is in transmission connection with the driving roller 2 through the chain 5, a lifting device is arranged between the driving roller 2 and the driven roller 3, the lifting device comprises a hydraulic cylinder fixed in the frame 1 and a lifting plate 6, and one end of a piston rod of the hydraulic cylinder is fixedly connected with the lifting plate 6. An auxiliary drum shaft 31 is fixedly connected to the driven drum 3 in an integrated manner, and a coupling 32 is arranged at one end of the auxiliary drum shaft 31 in the length direction. The coupling 32 serves as a safety device to prevent the sub-drum shaft 31 from being subjected to an excessive load, thereby performing an overload protection function.
Wherein, the extending roller part of the end of the driven roller 3 far away from each other is connected with a torque sensor 33 through a coupler 32, and when the tyre of the vehicle is detected on the dynamometer, the driving roller 2 and the driven roller 3 drive the tyre to rotate. When the rotating tire is braked, the tire of the wheel exerts a reaction force which is opposite to the braking force direction and has the same value with the tangential direction of the surface of the roller, and the roller is prevented from rotating. At this time, the motor is deflected in the opposite direction of the drum rotation together with the main drum shaft 23 by the reaction torque, and the portion of the sub-drum shaft 31 extending out of the drum is connected to the torque sensor 33 through the coupling 32, and the torque is measured by the measuring system and converted into the braking force by the torque sensor 33.
Referring to fig. 1, the antiskid protrusions 25 are uniformly and fixedly connected to the outer surfaces of the driving roller 2 and the driven roller 3, when the tire rotates between the driving roller 2 and the driven roller 3, the antiskid protrusions 25 increase the friction force between the rollers and the tread of the vehicle tire, so that the tire slip phenomenon is prevented, and the detection precision of the vehicle dynamic property, the multi-working-condition emission index, the fuel index and other performance parameters is further improved.
Referring to fig. 1, an air drying device 7 is disposed on one side of a frame 1, the air drying device 7 includes an air blower 71 and a support plate 72 disposed above the air blower 71, the air blower 71 is fixed in the frame 1 and disposed toward the support plate 72, the support plate 72 is detachably and fixedly connected to the frame 1, and a plurality of ventilation openings 73 are disposed on the support plate 72. The below of backup pad 72 is provided with the dust guard, and the perpendicular fixedly connected with limiting plate of one side border department that the backup pad 72 was kept away from to the dust guard, and frame 1's inboard border department integrated into one piece fixedly connected with supplies the limiting plate to inlay the spacing groove of establishing, and the dust guard setting is between air-blower 71 and backup pad 72.
In sunny days, the supporting plate 72 can be opened, and then the dust-proof plate is placed in the frame 1, so that the limiting plate is embedded and fixed in the limiting groove, and at the moment, the dust-proof plate is fixed between the air blower 71 and the supporting plate 72. So that external dust is not easy to enter the blower 71, and the service life of the blower 71 is prolonged. In rainy days, the dust-proof plate can be taken out of the frame 1, then the air blower 71 is turned on, so that strong exhaust air generated by the air blower 71 can pass through the ventilation openings 73 on the supporting plate 72 to act on the tire with water, the tire with water is convenient to air-dry, and the friction force of the wheel is consistent with that of the wheel when the wheel is dry in sunny days.
Further, one side of the frame 1 is fixedly connected with two hinges 11 through bolts, and one end of each hinge 11 far away from the frame 1 is fixedly connected with the edge of one side of the support plate 72. Two connecting plates 721 are fixedly connected to one end of the supporting plate 72 away from the hinge 11, and a fixing member 722 is screwed on the connecting plate 721, in the present invention, the fixing member 722 preferably uses a bolt, and the fixing member 722 is detachably and fixedly connected to the frame 1 through the connecting plate 721. When the blower 71 needs to be serviced or the dust-proof plate needs to be taken out, the fixing member 722 is unscrewed to separate the connection plate 721 from the frame 1, and then the support plate 72 is rotated, and the end of the support plate 72 remote from the connection plate 721 is rotated about the hinge 11 to facilitate the taking out of the dust-proof plate.
The implementation principle of the embodiment is as follows: when detecting performance and other parameters of the vehicle, such as vehicle dynamic performance, multi-condition emission index and fuel index, of the vehicle, if rain water is attached to the vehicle tires or the vehicle is in rainy weather, the vehicle is firstly driven to the air drying device 7, so that the tires with water are stopped on the supporting plate 72. Then, the blower 71 is turned on, so that the blower 71 generates large wind force to act on the tire with water through the vent 73, and the tire with water can be dried by strong wind energy. After the tire is dried, the front wheel of the vehicle is slowly started to move the table, so that the automobile wheel support is arranged on the roller, the vehicle is hung at a neutral position at the moment, and meanwhile, after the hydraulic cylinder is driven to enable the lifting plate 6 to descend, the table surface of the tire of the vehicle is in contact with the driving roller 2 and the driven roller 3. And finally, driving a power device to enable the driving roller 3 and the driven roller 3 to rotate, and simultaneously driving the vehicle tire to rotate for detection.
The strong air exhaust effect of the air blower 71 can blow the tire with water to enable the friction force of the wheel to be consistent with that of the wheel during drying, so that the detection precision is improved, and the actual problem that the numerical value of the vehicle is inaccurate during detection in rainy days is effectively solved. Simultaneously, after drying the rainwater on the tire or clearing up the dust for during the measurement, avoided rainwater or dust on the tire to produce the destruction to the instrument from the inside that the gap between initiative cylinder 2 and the driven cylinder 3 got into the dynamometer machine, increased the life of dynamometer machine. And make the inside clear state that keeps all the time of dynamometer machine, reduced the inside number of times of clearance dynamometer machine, saved manpower and materials when improving work efficiency.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (8)
1. The utility model provides a chassis dynamometer, includes frame (1), parallel mount drive cylinder (2) and driven cylinder (3) in frame (1), drive cylinder (2) are connected with power device along its length direction's one end transmission, and other end fixedly connected with sprocket (4), the outside meshing of sprocket (4) has chain (5), driven cylinder (3) are passed through chain (5) with drive cylinder (2) transmission is connected, drive cylinder (2) with be provided with lifting devices between driven cylinder (3), its characterized in that: the lifting device comprises a hydraulic cylinder and a lifting plate (6) which are fixed in the frame (1), and one end of a piston rod of the hydraulic cylinder is fixedly connected with the lifting plate (6);
one side of frame (1) is provided with air-dries device (7), air-dry device (7) including air-blower (71) and setting up backup pad (72) above air-blower (71), air-blower (71) are fixed in frame (1) and towards backup pad (72) set up, backup pad (72) with fixed connection can be dismantled to frame (1), a plurality of vents (73) have been seted up on backup pad (72).
2. The chassis dynamometer of claim 1, wherein: the below of backup pad (72) is provided with the dust guard, the dust guard is kept away from perpendicular fixedly connected with limiting plate is located at the one side border of backup pad (72), the inboard border department integrated into one piece fixedly connected with of frame (1) supplies the limiting plate inlays the spacing groove of establishing, the dust guard sets up air-blower (71) with between backup pad (72).
3. The chassis dynamometer of claim 2, wherein: one side of the frame (1) is fixedly connected with a plurality of hinges (11) through bolts, and one end, far away from the frame (1), of each hinge (11) is fixedly connected with the edge of one side of the support plate (72);
one end, far away from the hinge (11), of the supporting plate (72) is fixedly connected with a plurality of connecting plates (721), the connecting plates (721) are in threaded connection with fixing pieces (722), and the fixing pieces (722) penetrate through the connecting plates (721) to be detachably and fixedly connected with the frame (1).
4. The chassis dynamometer of claim 1, wherein: the power device comprises a motor (21) and a first gear (22) fixed on an output shaft of the motor (21), a main roller shaft (23) is fixedly connected into the driving roller (2) in an integrated mode, one end of the main roller shaft (23) in the length direction is fixedly connected with a second gear (24), and the first gear (22) and the second gear (24) are meshed with each other.
5. The chassis dynamometer of claim 4, wherein: an auxiliary roller shaft (31) is fixedly connected into the driven roller (3) in an integrated forming mode, and a coupler (32) is arranged at one end of the auxiliary roller shaft (31) in the length direction.
6. The chassis dynamometer of claim 5, wherein: the parts, extending out of one ends of the driven rollers (3) far away from each other, of the rollers are connected with a torque sensor (33) through the coupling (32).
7. The chassis dynamometer of claim 1, wherein: the driving roller (2) and the driven roller (3) are symmetrically arranged along the central axis of the frame (1).
8. The chassis dynamometer of claim 7, wherein: the outer surfaces of the driving roller (2) and the driven roller (3) are uniformly and fixedly connected with anti-skid protrusions (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010105689.XA CN111207865A (en) | 2020-02-21 | 2020-02-21 | Chassis dynamometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010105689.XA CN111207865A (en) | 2020-02-21 | 2020-02-21 | Chassis dynamometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111207865A true CN111207865A (en) | 2020-05-29 |
Family
ID=70785292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010105689.XA Pending CN111207865A (en) | 2020-02-21 | 2020-02-21 | Chassis dynamometer |
Country Status (1)
| Country | Link |
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| CN (1) | CN111207865A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023173844A1 (en) * | 2022-03-15 | 2023-09-21 | 华能伊敏煤电有限责任公司 | 220t dump truck electric control cabinet heat dissipation and ventilation monitoring and alarming device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203037390U (en) * | 2012-10-24 | 2013-07-03 | 山东安车检测技术有限公司 | Vehicle chassis dynamometer |
| CN204043924U (en) * | 2014-08-21 | 2014-12-24 | 四川工程职业技术学院 | A kind of drum reaction type automobile brake testing bench |
| CN105021408A (en) * | 2015-08-12 | 2015-11-04 | 山东科大微机应用研究所有限公司 | Heating-device-contained roller opposite-force type loading brake check-out console and using method thereof |
| CN207106457U (en) * | 2017-05-20 | 2018-03-16 | 北京城建亚泰金砼混凝土有限公司 | Wheel cleaning air-dries all-in-one |
| CN108132155A (en) * | 2017-11-16 | 2018-06-08 | 成都益佳平科技有限公司 | A kind of 4 wheel driven Chassis dynamometer detecting system for being applicable in different wheelbases |
-
2020
- 2020-02-21 CN CN202010105689.XA patent/CN111207865A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203037390U (en) * | 2012-10-24 | 2013-07-03 | 山东安车检测技术有限公司 | Vehicle chassis dynamometer |
| CN204043924U (en) * | 2014-08-21 | 2014-12-24 | 四川工程职业技术学院 | A kind of drum reaction type automobile brake testing bench |
| CN105021408A (en) * | 2015-08-12 | 2015-11-04 | 山东科大微机应用研究所有限公司 | Heating-device-contained roller opposite-force type loading brake check-out console and using method thereof |
| CN207106457U (en) * | 2017-05-20 | 2018-03-16 | 北京城建亚泰金砼混凝土有限公司 | Wheel cleaning air-dries all-in-one |
| CN108132155A (en) * | 2017-11-16 | 2018-06-08 | 成都益佳平科技有限公司 | A kind of 4 wheel driven Chassis dynamometer detecting system for being applicable in different wheelbases |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023173844A1 (en) * | 2022-03-15 | 2023-09-21 | 华能伊敏煤电有限责任公司 | 220t dump truck electric control cabinet heat dissipation and ventilation monitoring and alarming device |
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Application publication date: 20200529 |