Leveling device for automobile test ramp gravel

A car test and ramp technology, which is applied in the direction of roads, roads, road repairs, etc., can solve the problems of flat gravel, insufficient precision, and occupation of tractors on car test ramps, and achieve accurate and reliable test results. The effect of quality level

Active Publication Date: 2019-06-25

CHONGQING CHANGAN AUTOMOBILE CO LTD

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AI-Extracted Technical Summary

Problems solved by technology

[0003] But there are two disadvantages of this method: first, it takes up a tractor, and it is troublesome to install and operate every time.

Second, only relying on the weight of the scraper to level the gravel on the slope,...

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Abstract

The invention relates to a leveling device for automobile test ramp gravel. The leveling device comprises traction mechanisms arranged at the two ends of a cross groove in the top of a test ramp, rails arranged on the test ramp, and a leveling scraper blade trolley arranged on the rails. The traction mechanisms comprise drive motors arranged in one end of the cross groove, speed reducers cooperatively connected to the output ends of the drive motors, and long transmission shafts with one ends coaxially connected with the output ends of the speed reducers, and the long transmission shafts penetrate through the cross groove. Transmission gears are arranged at the two ends of the long transmission shafts respectively. The leveling device further comprises two sets of winding parts arranged onone sides of the two ends of the cross groove respectively, and middle gears of the two sets of winding parts are engaged with the transmission gears at the two ends of the long transmission shafts respectively. The other ends of mooring ropes of the two sets of winding parts are connected with the leveling scraper blade trolley arranged on the rails respectively. The automobile test ramp gravelcan be rapidly leveled, and it is guaranteed that the leveling precision meets the requirements. The test result is precise and reliable, the safety and the reliability are achieved, and time and labor are saved.

Application Domain

Roads maintainence

Technology Topic

Electric machineryDrive motor +7

Image

Examples

Experimental program(1)

Example Embodiment

[0049] Specific implementation method

[0050] The present invention will be further described below in conjunction with the drawings.

[0051] See Figure 1 to Figure 11 , A leveling device for the rubble of an automobile test ramp is shown, including a traction mechanism at both ends of the transverse groove 31 at the top of the test ramp 3, a track 4 set on the test ramp 3, and a track 4 On the upper leveling scraper trolley, the lower end of the track 4 is provided with a downward bending section 41, and the lower end of the track is bent into a downward bending section. When the scraper descends to the lower end of the track, there is a larger descending range, so that the road surface adjacent to the test ramp forms a small slope, which is convenient for the test car to drive into the test ramp. Its outstanding substantive features are:

[0052] The traction mechanism includes a drive motor 1 arranged in one end of the transverse groove 31, a reducer 11 matingly connected to its output end, and a long drive shaft 12 that is coaxially connected to the output end of the reducer and penetrates the transverse groove 31 at one end. , A transmission gear 13 is respectively provided on both ends of the long transmission shaft 12;

[0053] It also includes two sets of winding parts respectively arranged on one side of the two ends of the transverse groove 31. The winding parts include a winch 2, an intermediate gear 21 coaxially connected with the winch, and one end fixed on the winch. The cable 22 on the drum 2, the intermediate gears 21 of the two sets of winding parts respectively mesh with the transmission gears 13 on the two ends of the long drive shaft 12; the other ends of the cables 22 of the two sets of winding parts are respectively engaged Connect with the leveling scraper trolley arranged on the track 4.

[0054] Starting the drive motor and driving the winch of the two sets of winding components to rotate through the reducer, the transmission gear and the intermediate gear, and then the smoothing scraper trolley is pulled by the cable to move up and down along the track set on the test ramp.

[0055] The traction mechanism of the leveling device can also adopt a dual-drive traction scheme. When this scheme is implemented, the driving members on the left and right sides are completely symmetrical, and the long drive shaft is not used for power transmission.

[0056] The leveling scraper trolley includes: two trolley support plates 5 with the same structure and symmetric left and right, and two clamping plates 6 with the same structure and left and right symmetrical; two clamp plates 6 and two trolley supports respectively Corresponding connection of board 5;

[0057] The lower sides of the two trolley support plates 5 are respectively provided with bending flanges 50, and the cross section is "L"-shaped; the vertical surfaces of the two trolley support plates 5 are respectively provided with traction holes 51 and hinge shaft holes 54. The two traction holes 51 are respectively connected to the other end of the cable 22 of the winding component; the clamping plate 6 is in the shape of an isosceles inverted triangle, and a lower shaft hole 61 is provided in the lower part thereof;

[0058] The two ends of a link shaft 7 are respectively mated and connected with the hinge shaft holes 54 on the two trolley support plates 5; a front guide plate 71 and a scraper 72 are hinged on the link shaft 7; on the front guide plate 71 A front guide plate spring 73 is connected between the lower surface and the upper surface of the bending flange 50, and a scraper spring 74 is connected between the lower surface of the scraper 72 and the upper surface of the bending flange 50;

[0059] Two upper sliding wheels 8 and two lower sliding wheels 9 are respectively matched and connected between a trolley support plate 5 and the upper part of a clamping plate 6. The rims of the two upper sliding wheels 8 and the two lower sliding wheels 9 Respectively contact with the upper surface of the upper edge 42 of the track 4;

[0060] Two lower clamping wheels 10 are respectively connected to the lower part of a clamping plate 6 respectively, and the two lower clamping wheels 10 are in contact with the underside of the upper edge 42 of the rail 4 respectively.

[0061] A first shaft hole 52 and a second shaft hole 53 are respectively provided on the vertical surfaces of the two trolley support plates 5; the upper part of the clamping plate 6 is provided with a first shaft hole 52 A corresponding first upper shaft hole 62 and a second shaft hole 63 corresponding to the second shaft hole 53;

[0062] The two upper sliding wheels 8 are fitted on a fixed shaft, and the two ends of the fixed shaft are respectively connected with the first shaft hole 52 on the trolley support plate 5 and the first upper shaft on the clamping plate 6. The shaft hole 62 is matched and connected;

[0063] The two lower sliding wheels 9 are fitted on a fixed shaft. The two ends of the fixed shaft are respectively connected with the second shaft hole 53 on the other trolley bracket plate 5 and the second shaft hole 53 on the other clamping plate 6 The upper shaft hole 63 is matched and connected;

[0064] The two lower clamping wheels 10 are respectively matched and connected with a fixed shaft, and the end of the fixed shaft is matched and connected with the lower shaft hole 61 on the clamping plate 6.

[0065] A high locking pin hole 55 and a low locking pin hole 56 are respectively provided on the vertical surfaces of the two trolley support plates 5.

[0066] One end of the scraper 72 is rolled into an intermittent circular tube, and the other end is provided with serrations 75. One end of the front guide plate 71 is also rolled into an intermittent circular tube. The scraper 72 and one end of the front guide plate 71 are broken The continuous round pipe is misaligned and hinged on the link shaft 7.

[0067] There are also locking pins 76 that are matched with the high locking pin holes 55 or the low locking pin holes 56 respectively. In order to lock the scraper in the required position.

[0068] A gravel block 33 is provided at the bottom of the test ramp 3. Build a wedge-shaped gravel barrier at the bottom of the test ramp to prevent falling gravel from falling onto the flat road under the test ramp.

[0069] On the top of the test ramp 3, a micro switch (marked in the figure) corresponding to the leveling scraper trolley is provided. When the leveling scraper trolley touches the micro switch, the driving motor stops rotating, and the leveling work ends. When the leveling task is completed, turn the winch in reverse, and the leveling scraper trolley will freely slide down under the action of gravity until the starting position (that is, the bottom of the leveling scraper trolley). If the leveling scraper trolley slides into place or is blocked in the middle, the sensor (marked in the picture) on the winch will sense that the drag force of the leveling scraper trolley is reduced, that is, stop the driving motor and lock only.

[0070] The transverse groove 31 is provided with a cover plate.

[0071] The driving motor of the present invention, the micro switch arranged on the top of the test ramp and the inductor arranged on the winch are all electrically connected to the controller.

[0072] The embedded part of the track laid on the test ramp is deep at the top and shallow at the bottom, that is, the height of the track is not level with the ground of the test ramp. The purpose of this is to make the gravel accumulated on the test ramp not be uniformly distributed, but the lower part of the ramp has a larger accumulation thickness, and the upper part has a smaller accumulation thickness, which is conducive to the test of different thicknesses of the gravel state and is also conducive to scraping The scraping of the board against the gravel.

[0073] When the test vehicle is driving on a test ramp with gravel, the rubble will be thrown and splashed and accumulated at the bottom of the test ramp due to the rotation of its wheels 34. At this time, the gravel will be blocked by the gravel barrier. In addition, the front guide plate 7 will also prevent the rubble from rolling down.

[0074] The operation process of this device is as follows:

[0075] See Picture 12 When the gravel on the test ramp is in a normal state, the leveling scraper trolley is at the bottom of the test ramp, and one end of the scraper is connected to the flat road surface of the test ramp at an inclined plane, which is beneficial for the car to drive uphill. Due to the elastic force of the front guide leaf spring, the front guide plate is lifted up, but the wheels 34 of the test car on the uphill will press the front guide leaf spring so that the front guide plate contacts the slope of the test ramp downwards, allowing the car to pass smoothly.

[0076] After several tests, the gravel on the test ramp began to accumulate downwards, and it is necessary to start the leveling test ramp of the present invention. At this time, the drive motor is started, and when the winch rotates, the cable starts to pull the leveling scraper trolley. Since the front guide plate is in the upward lift position at this time, when moving upwards, it will guide the rubble. Then, the scraper 72 with saw teeth 75 will scrape and level the piled rubble. When the leveling scraper cart reaches the top of the slope, it will touch the micro switch, and the drive motor will stop rotating and be locked.

[0077] When the leveling scraper trolley needs to descend, the driving motor is started in the reverse direction. At this time, under the action of gravity, the leveling scraper trolley slides down. Before starting the drive motor in the reverse direction, it is necessary to manually remove the locking pin 76, so that the scraper is lifted under the action of the scraper spring 74, so that it can slide smoothly to the initial position. After it is in place, it is necessary to manually insert the locking pin 76 into the low locking hole 55 to lock the scraper to the down position.

[0078] The present invention is provided with high locking pin holes 55 and low locking pin holes 56 distributed up and down, so that the leveling height can be adjusted. In the case of severe blockage by crushed stones, you can first insert the lock pin 76 into the high lock pin hole 55 to lock the scraper 10. At this time, the scraping strength is small and is beneficial to scraping. If it is necessary to further smooth the gravel on the ramp, the locking pin 76 can be inserted into the low locking pin hole 56 to implement secondary leveling.

[0079] The rubble on the test ramp will be repeatedly thrown and accumulated by the wheels of the test car. You only need to repeat the above operation to level the test ramp.

[0080] The invention solves the problems of time-consuming, labor-consuming and uneven leveling of the dragging scraper by a car, improves the quality level of the test road surface, can adjust the distribution of gravel on the test ramp, and improves the road surface accuracy.

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Description & Claims & Application Information

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Classification and recommendation of technical efficacy words

Improve quality level
The test results are accurate and reliable

Leveling device for automobile test ramp gravel

A car test and ramp technology, which is applied in the direction of roads, roads, road repairs, etc., can solve the problems of flat gravel, insufficient precision, and occupation of tractors on car test ramps, and achieve accurate and reliable test results. The effect of quality level

AI-Extracted Technical Summary

Problems solved by technology

Abstract

Image

Examples

Example Embodiment

PUM

Description & Claims & Application Information

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