CN217901223U - Chassis dynamometer for automobile working condition exhaust emission test - Google Patents
Chassis dynamometer for automobile working condition exhaust emission test Download PDFInfo
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- CN217901223U CN217901223U CN202222191140.4U CN202222191140U CN217901223U CN 217901223 U CN217901223 U CN 217901223U CN 202222191140 U CN202222191140 U CN 202222191140U CN 217901223 U CN217901223 U CN 217901223U
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Abstract
The utility model discloses a chassis dynamometer for automobile working condition exhaust emission test relates to chassis dynamometer technical field, including the board of rolling on the chassis dynamometer, be equipped with two sets of fixed wheel subassemblies that are used for fixing the non-drive wheel of car on the board of rolling, be equipped with on the board of rolling and be used for driving one of them fixed wheel subassembly and move towards the first drive arrangement of another fixed wheel subassembly direction, still include two movable plates that are used for lifting the non-drive wheel of car in each fixed wheel subassembly, still be equipped with the second drive arrangement that is used for driving the movable plate to move respectively on each fixed wheel subassembly; one side of the movable plate is provided with a plurality of rotatable shaft rollers. The shaft roller that sets up can carry out rolling friction between the non-drive wheel, the noise that produces when having avoided the tire of non-drive wheel and movable plate sliding friction to can not produce noise pollution in testing the workshop, can also prevent to cause wearing and tearing to the tire of non-drive wheel simultaneously, in order to guarantee not influenced the later stage by the test vehicle and sell.
Description
Technical Field
The utility model relates to a chassis dynamometer machine technical field specifically is a chassis dynamometer machine for vehicle operating mode exhaust emissions tests.
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 an automobile test, particularly when a road test is simulated on a two-wheel drive chassis dynamometer, a non-driving wheel needs to be fixed, so that the phenomenon that the automobile driving wheel is separated from a roller is avoided, but the conventional fixing device on the chassis dynamometer is complex in operation and poor in fixing effect, and vehicle movement and deviation are easily caused.
Chinese utility model patent publication No. CN216718340U discloses a chassis dynamometer for automobile working condition exhaust emission test, the above-mentioned problem is solved, it has adopted the tight mode of non-drive wheel clamp to restrict vehicle drunkenness and off tracking, in the actual test to two drive vehicles, need place the drive wheel of vehicle in between the initiative cylinder and the driven cylinder of chassis dynamometer, can lead to one side automobile body gesture that is close to the drive wheel higher, and the body gesture that is close to non-drive wheel one side is lower, can't guarantee that the vehicle tests under the automobile body horizontal condition, get back to the contrast file, it also can upwards lift the non-drive wheel through two movable plates, reach the purpose of adjustment automobile body horizontal gesture, but its two movable plates are when lifting the non-drive wheel, because the power that the both sides of non-drive wheel all received the movable plate, lead to the non-drive wheel to keep relative stillness with the movable plate at last, in-process, be sliding friction between the movable plate of non-drive wheel and the inclined plane, when producing the noise and still probably causing the wearing and tearing of certain degree to the tread of non-drive wheel.
To the problem, the utility model provides a chassis dynamometer machine for vehicle operating mode exhaust emissions tests.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a chassis dynamometer machine for vehicle operating mode exhaust emissions tests to the problem in the background art has been solved.
In order to achieve the above purpose, the utility model provides a following technical scheme: a chassis dynamometer used for an automobile working condition tail gas emission test comprises a rolling plate on the chassis dynamometer, wherein two groups of fixed wheel assemblies used for fixing non-driving wheels of an automobile are arranged on the rolling plate, a first driving device used for driving one of the fixed wheel assemblies to move towards the other fixed wheel assembly is arranged on the rolling plate, each fixed wheel assembly also comprises two moving plates used for lifting the non-driving wheels of the automobile, and a second driving device used for respectively driving the moving plates to move is also arranged on each fixed wheel assembly;
a slope surface in contact with the peripheral surface of the non-driving wheel is formed on one side of the moving plate, and a plurality of rotatable shaft rollers are arranged on the slope surface from top to bottom.
Furthermore, a plurality of grooves which are arranged at equal intervals are formed in the slope surface from top to bottom, two side surfaces of each groove are rotatably connected with two ends of the shaft roller, and the shaft roller extends out of the slope surface from the groove.
Furthermore, the fixed wheel assembly comprises a push plate, a sliding block is fixedly connected to the middle of the lower surface of the push plate, and the sliding block is connected to a sliding groove formed in the upper surface of the rolling plate in a sliding mode.
Furthermore, the first driving device is a first air cylinder fixedly installed on two end faces of the sliding groove, and an output end of the first air cylinder is fixedly connected to the corresponding sliding block.
Furthermore, a guide groove is formed in the inner side face of the push plate and is used for being in sliding connection with a sliding strip fixed to the side face of the moving plate.
Furthermore, the second driving device is a second air cylinder fixedly mounted on the side face of the push plate, and the output end of the second air cylinder is fixedly connected to the corresponding moving plate.
Furthermore, the middle part of the upper surface of the push plate is fixed with an infrared distance meter for detecting the distance between the push plate and a non-driving wheel of an automobile, and the infrared distance meter is used for controlling the first driving device to start and stop.
Further, be equipped with tail gas analysis equipment on the board of rolling, tail gas analysis equipment is including the tail gas analysis appearance that the board upper surface one side of rolling set up, and the board of rolling is connected with the tail gas probe that is arranged in inserting the vehicle vent-pipe through the connecting wire, and the tail gas probe passes through the probe support and sets up on the board of rolling.
Compared with the prior art, the beneficial effects of the utility model are as follows:
the utility model provides a pair of a chassis dynamometer machine for vehicle operating mode exhaust emissions tests, the beam barrel of setting can carry out rolling friction between the non-drive wheel, sliding friction problem between original movable plate and the non-drive wheel has been changed, thereby when two movable plates are close to each other and hold up the non-drive wheel, the beam barrel can receive the extrusion force of non-drive wheel and rotate, the noise that produces when having avoided the tire of non-drive wheel and movable plate sliding friction, thereby can not produce noise pollution in testing the workshop, can also prevent to cause wearing and tearing to the tire of non-drive wheel simultaneously, in order to guarantee not to influence the later stage by the test vehicle and sell.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a state diagram of the present invention when the non-driving wheel is not lifted;
FIG. 3 is a state diagram of the present invention when the non-driving wheel is lifted;
fig. 4 is a schematic structural view of the middle moving plate, the shaft roller and other parts of the present invention.
In the figure: 1. rolling a plate; 11. a chute; 2. a first driving device; 3. a fixed wheel assembly; 31. pushing the plate; 311. a guide groove; 32. a second driving device; 33. a slider; 34. moving the plate; 341. a groove; 342. a slide bar; 343. a slope surface; 4. an infrared range finder; 5. a tail gas analysis device; 51. a tail gas analyzer; 52. a probe holder; 53. an exhaust probe; 6. a beam barrel; 100. a non-driving wheel.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-4, a chassis dynamometer for testing exhaust emission under an automobile working condition includes a rolling plate 1 on the chassis dynamometer, two sets of fixed wheel assemblies 3 for fixing non-driving wheels 100 of the automobile are arranged on the rolling plate 1, a first driving device 2 for driving one of the fixed wheel assemblies 3 to move towards the other fixed wheel assembly 3 is arranged on the rolling plate 1, each fixed wheel assembly 3 further includes two moving plates 34 for lifting the non-driving wheels 100 of the automobile, and each fixed wheel assembly 3 is further provided with a second driving device 32 for respectively driving the moving plates 34 to move;
a slope 343 is formed on one side of the moving plate 34 so as to contact the outer peripheral surface of the non-driving wheel 100, and a plurality of rotatable rollers 6 are provided on the slope 343 from the top down. The beam barrel 6 that sets up can carry out rolling friction between the non-drive wheel 100, the sliding friction problem between original movable plate 34 and the non-drive wheel 100 has been changed, thereby when two movable plates 34 are close to each other and hold up non-drive wheel 100, beam barrel 6 can receive non-drive wheel 100's extrusion force and rotate, the noise that produces when having avoided non-drive wheel 100's tire and the sliding friction of movable plate 34, thereby can not produce noise pollution in the test vehicle room, can also prevent to cause wearing and tearing to non-drive wheel 100's tire simultaneously, in order to guarantee not to influence the later stage by the test vehicle and sell.
A plurality of grooves 341 arranged at equal intervals are formed in the slope surface 343 from top to bottom, two side surfaces of each groove 341 are rotatably connected with two ends of the shaft roller 6, and the shaft roller 6 extends out of the slope surface 343 from the groove 341; the fixed wheel assembly 3 comprises a push plate 31, the middle part of the lower surface of the push plate 31 is fixedly connected with a slide block 33, and the slide block 33 is connected in a sliding way 11 arranged on the upper surface of the rolling plate 1 in a sliding way; the first driving device 2 is a first cylinder fixedly mounted on two end faces of the chute 11, and an output end of the first cylinder is fixedly connected to the corresponding sliding block 33; a guide groove 311 is formed in one inner side surface of the push plate 31, and the guide groove 311 is used for being in sliding connection with a sliding strip 342 fixed on the side surface of the moving plate 34; the second driving device 32 is a second cylinder fixedly installed on the side surface of the pushing plate 31, and the output end of the second cylinder is fixedly connected to the corresponding moving plate 34.
The upper surface middle part of push pedal 31 is fixed with the infrared distance meter 4 that is used for detecting the distance between push pedal 31 and the non-drive wheel 100 of car, infrared distance meter 4 is used for controlling first drive arrangement 2 and stops, can detect the distance between push pedal 31 and the non-drive wheel 100 of car through infrared distance meter 4, when push pedal 31 removes non-drive wheel 100 one side of car, push pedal 31 contacts with non-drive wheel 100 this moment, the distance numerical value that infrared distance meter 4 surveyed is zero, when the distance that infrared distance meter 4 surveyed reaches the distance numerical value zero that the controller in the chassis dynamometer was predetermine, the controller in the chassis dynamometer sends the signal of out the shut down to first drive arrangement 2 this moment, can reduce the phenomenon that causes push pedal 31 and non-drive wheel 100 one side collision of car because of staff's error this moment and take place, and is simple and convenient to use.
Be equipped with tail gas analytical equipment 5 on rolling board 1, tail gas analytical equipment 5 is including rolling board 1 upper surface one side tail gas analyzer 51 that sets up, and rolling board 1 is connected with the tail gas probe 53 that is arranged in inserting the vehicle vent-pipe through the connecting wire, and tail gas probe 53 passes through probe holder 52 and sets up on rolling board 1, can detect automobile exhaust through tail gas analyzer 51 and tail gas probe 53, and convenience simple to use.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The chassis dynamometer for the automobile working condition exhaust emission test is characterized by comprising a rolling plate (1) on the chassis dynamometer, wherein two groups of fixed wheel assemblies (3) used for fixing non-driving wheels (100) of an automobile are arranged on the rolling plate (1), a first driving device (2) used for driving one fixed wheel assembly (3) to move towards the other fixed wheel assembly (3) is arranged on the rolling plate (1), each fixed wheel assembly (3) further comprises two moving plates (34) used for lifting the non-driving wheels (100) of the automobile, and each fixed wheel assembly (3) is further provided with a second driving device (32) used for respectively driving the moving plates (34) to move;
a slope surface (343) in contact with the outer peripheral surface of the non-driving wheel (100) is formed on one side of the moving plate (34), and a plurality of rotatable shaft rollers (6) are arranged on the slope surface (343) from top to bottom.
2. The chassis dynamometer used for the tail gas emission test under the automobile working condition according to claim 1, characterized in that: the slope surface (343) is provided with a plurality of grooves (341) which are arranged at equal intervals from top to bottom, two side surfaces of each groove (341) are rotatably connected with two ends of the shaft roller (6), and the shaft roller (6) extends out of the slope surface (343) from the groove (341).
3. The chassis dynamometer used for the automobile working condition exhaust emission test according to claim 1, characterized in that: the fixed wheel assembly (3) comprises a push plate (31), a sliding block (33) is fixedly connected to the middle of the lower surface of the push plate (31), and the sliding block (33) is connected to a sliding groove (11) formed in the upper surface of the rolling plate (1) in a sliding mode.
4. The chassis dynamometer used for the automobile working condition exhaust emission test according to claim 3, characterized in that: the first driving device (2) is a first air cylinder fixedly installed on two end faces of the sliding groove (11), and the output end of the first air cylinder is fixedly connected to the corresponding sliding block (33).
5. The chassis dynamometer used for the automobile working condition exhaust emission test according to claim 3, characterized in that: a guide groove (311) is formed in one inner side face of the push plate (31), and the guide groove (311) is used for being in sliding connection with a sliding strip (342) fixed on the side face of the moving plate (34).
6. The chassis dynamometer used for the automobile working condition exhaust emission test according to claim 5, characterized in that: the second driving device (32) is a second air cylinder fixedly mounted on the side face of the push plate (31), and the output end of the second air cylinder is fixedly connected to the corresponding moving plate (34).
7. The chassis dynamometer used for the automobile working condition exhaust emission test according to claim 6, characterized in that: the infrared distance measuring device is characterized in that an infrared distance measuring instrument (4) used for detecting the distance between the push plate (31) and a non-driving wheel (100) of an automobile is fixed in the middle of the upper surface of the push plate (31), and the infrared distance measuring instrument (4) is used for controlling the first driving device (2) to start and stop.
8. The chassis dynamometer for testing exhaust emission under vehicle operating conditions according to any one of claims 1-7, wherein: be equipped with tail gas analytical equipment (5) on rolling board (1), tail gas analytical equipment (5) are including rolling board (1) tail gas analysis appearance (51) that upper surface one side set up, rolling board (1) is connected with tail gas probe (53) that are arranged in inserting the vehicle vent-pipe through the connecting wire, tail gas probe (53) set up on rolling board (1) through probe support (52).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222191140.4U CN217901223U (en) | 2022-08-19 | 2022-08-19 | Chassis dynamometer for automobile working condition exhaust emission test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222191140.4U CN217901223U (en) | 2022-08-19 | 2022-08-19 | Chassis dynamometer for automobile working condition exhaust emission test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217901223U true CN217901223U (en) | 2022-11-25 |
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ID=84142428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222191140.4U Active CN217901223U (en) | 2022-08-19 | 2022-08-19 | Chassis dynamometer for automobile working condition exhaust emission test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217901223U (en) |
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2022
- 2022-08-19 CN CN202222191140.4U patent/CN217901223U/en active Active
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