A protruding road sign wear resistance testing machine

Abstract

The present invention discloses a test machine for the wear resistance of raised road signs, which comprises a body, a conveying part, a testing part and a metering part. The test sand in the sand-discharging front cover is transported to the filter screen through the sand bucket on the conveyor belt, and then the vertical sand guide pipe impacts the raised road sign of the sample rack through the correction funnel, and finally falls into the metering device of the sand collecting box. The present invention can ensure the convenience of operation of the test personnel, and can avoid the potential safety hazards in the test process. While meeting the sand transport speed and sand falling uniformity, it can also accurately measure the quality of the sand falling through the correction funnel.

Description

Technical Field

[0001] The invention relates to the field of falling sand impact test, in particular to a protruding road sign wear resistance tester. Background Art

[0002] In the industrial field, the wear resistance of raised road signs is usually tested by a falling sand impact test. After the test equipment transports the test sand to a certain height, the filter screen is used as the starting point for the falling sand, and the sample is subjected to a falling sand impact test through a vertical sand guide tube and a correction funnel. After the test, the luminous intensity coefficient of the sample is measured. In the prior art, the test machine for the wear resistance of raised road signs is a mechanical frame structure, and the test sand needs to be manually transported to the filter screen, which is time-consuming and labor-intensive and cannot guarantee the sand transport speed and sand uniformity required by the standard; the correction funnel and the bottom bracket are an integral structure, and when adjusting the relative position of the correction funnel and the vertical sand guide tube, the vertical sand guide tube needs to be moved left and right, which is inconvenient to operate; there is no sand receiving device on the outside of the correction funnel, which makes it difficult to clean the laboratory after the test; the equipment has no weighing and metering device, and during the test, it is impossible to determine whether the test sand of the impact sample meets the standard requirements. Summary of the invention

[0003] The purpose of the present invention is to provide a raised road sign wear resistance testing machine to solve the above problems.

[0004] The present invention adopts the following technical solution:

[0005] The present invention provides a protruding road sign wear resistance testing machine, which is characterized by comprising a body part, a conveying part, a testing part and a measuring part;

[0006] The fuselage part comprises a frame, a sand-discharging front cover and a sand-receiving plate, wherein the sand-discharging front cover is arranged on the left side of the frame, and the sand-receiving plate is arranged on the top of the frame;

[0007] The conveying part includes a conveying motor, a conveyor belt and a sand bucket, wherein the conveying motor is fixedly mounted at the bottom of the frame through a motor seat, the conveyor belt is mounted in the frame through a tensioning device, the sand bucket is evenly distributed on the outer surface of the conveyor belt, and the conveyor belt is connected to the working end of the conveying motor;

[0008] The test part includes a filter screen, a sand screening motor and a vertical sand guide pipe, the vertical sand guide pipe is fixedly installed on the right side of the frame through a plurality of pipe clamps, the filter screen is connected to the sand screening motor through a filter screen fixing frame, the sand screening motor is fixedly installed on the pipe clamp through a motor fixing frame, and the filter screen is located directly above the vertical sand guide pipe;

[0009] The metering part includes a calibration funnel, a collector and a sand collecting box. The sand collecting box is placed on the right side of the frame. The calibration funnel is installed in the sand collecting box through a vertical plate, and the calibration funnel is located directly below the vertical sand guide tube. After the fixed hand twist is connected to the sample rack, the sample rack is set at the center of the collector. A mass sensor is set at the lower end of the collector, and the collector is located directly below the calibration funnel.

[0010] The sand receiving plate is tilted, the upper end of the sand receiving plate corresponds to the top of the conveyor belt and is located below the sand hopper, and the lower end of the sand receiving plate corresponds to the filter screen. After the sand in the sand hopper is transported to a high point by the conveyor belt, the sand hopper flips and drives the sand to slide onto the filter screen through the sand receiving plate, and then falls into the sand collecting box through the vertical sand guide pipe to complete the metering operation;

[0011] The conveying section runs through the entire fuselage section and transports the test sand from the bottom of the fuselage section to the test section located on the right side of the upper end of the fuselage section. The test sand passes through the test section and is then transported to the measuring section located on the right side of the lower end of the fuselage section for weighing. The measuring section is located directly below the test section.

[0012] Furthermore, a side cover is provided on the surface of the frame, an upper cover is provided on the top of the frame, and a base side cover is provided on the bottom of the frame.

[0013] Furthermore, a square sand outlet is provided on the side wall of the sand-discharging front cover close to the frame, and a sand retaining plate is installed in a pluggable manner.

[0014] Furthermore, the conveyor belt is tensioned and installed in the frame through two upper and lower transmission wheels, the upper transmission wheel is rotatably installed on the transmission wheel frame through a transmission wheel shaft, and the transmission wheel frame is fixedly installed on the top of the frame; the lower transmission wheel is connected to the rotating shaft of the conveying motor.

[0015] Furthermore, the vertical plate is provided with fixing grooves, and the two ends of the correction funnel are respectively inserted into the fixing grooves of the vertical plates at both ends. The upper end of the vertical plate is provided with a threaded hole, and the two ends of the correction funnel are fixed in the fixing grooves by adjusting the hand-twisted screw through the threaded hole.

[0016] Furthermore, the sand screening motor specifically adopts a linear reciprocating motor.

[0017] Furthermore, the conveyor belt adopts a customized conveying chain, and a protruding piece is arranged on the outer side of the outer chain plate of the conveying chain, and the sand bucket is fixed on the protruding piece by a hexagonal bolt.

[0018] Compared with the prior art, the present invention has the following beneficial technical effects: the present invention realizes the transportation of the test sand to the filter screen by setting up structures such as a sand bucket, a conveyor belt and a conveying motor, thus saving a lot of labor; the uniformity of the falling sand is ensured by setting up structures such as a sand screening motor and a filter screen; the weight of the test sand can be directly obtained by setting up a collector and a mass sensor; an adjustable correction funnel is provided, and the relative position between the correction funnel and the sand guide tube is adjusted more conveniently. The present invention can ensure the convenience of the test personnel in operation and avoid the potential safety hazards in the test process through optimized design. While meeting the sand transportation speed and the uniformity of the falling sand, it can also accurately measure the mass of the falling sand passing through the correction funnel, thus greatly improving the work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below in conjunction with the accompanying drawings:

[0020] Figure 1 This is a front view of the raised road sign wear resistance testing machine of the present invention;

[0021] Figure 2 It is a partial cross-sectional view of the top of the raised road sign wear resistance testing machine of the present invention;

[0022] Figure 3 It is a cross-sectional view of the fuselage of the raised road sign wear resistance testing machine of the present invention;

[0023] Figure 4 This is a front view of the conveying part of the protruding road sign wear resistance testing machine of the present invention;

[0024] Figure 5 It is a right view of the test part of the raised road sign wear resistance tester of the present invention;

[0025] Figure 6 A top view of the test part of the raised road sign wear resistance tester of the present invention;

[0026] Figure 7 It is a cross-sectional view of the measuring part of the raised road sign wear resistance testing machine of the present invention;

[0027] Figure 8 It is a right view of the measuring part of the raised road marker wear resistance testing machine of the present invention.

[0028] Explanation of the reference numerals: 1. Body; 2. Conveying section; 3. Test section; 4. Measuring section; 5. Frame; 6. Sand discharge front cover; 7. Side cover; 8. Sand baffle; 9. Upper cover; 10. Sand receiving plate; 11. Side cover of base; 12. Conveying motor; 13. Motor seat; 14. Transmission wheel; 15. Conveyor belt; 16. Sand bucket; 17. Transmission wheel frame; 18. Transmission wheel shaft; 19. Filter screen; 20. Pipe clamp; 21. Vertical sand guide pipe; 22. Filter screen fixing frame; 23. Sand screening motor; 24. Motor fixing frame; 25. Vertical plate; 26. Calibration funnel; 27. Adjustment knob; 28. Sample rack; 29. ​​Fixing knob; 30. Collector; 31. Quality sensor; 32. Sand collecting box. DETAILED DESCRIPTION

[0029] like Figure 1 As shown, a test machine for the wear resistance of raised road signs comprises a body part 1, a conveying part 2, a test part 3 and a measuring part 4. The conveying part 2 runs through the entire body part 1 and transports test sand from the bottom of the body part 1 to the test part 3 located on the upper right side of the body part 1. The test sand passes through the test part 3 and falls to the measuring part 4 located on the lower right side of the body part 1 for weighing. The measuring part 4 is located directly below the test part 3.

[0030] like Figure 1 As shown, the fuselage part 1 includes a frame 5, a sand-discharging front cover 6 and a sand receiving plate 10. The sand-discharging front cover 6 is provided on the left side of the frame 5 for filling the test sand, and the sand receiving plate 10 is provided on the top of the frame 5. A side cover 7 is provided on the surface of the frame 5, an upper cover 9 is provided on the top of the frame 5, and a base side cover 11 is provided at the bottom of the frame 5. It has a certain shielding effect to ensure that the test sand will not be scattered on the ground. The sand-discharging front cover 6 is provided with a square sand outlet on the side wall close to the frame 5, and a sand retaining plate 8 is installed in a pluggable manner. The size of the sand outlet can be adjusted by adjusting the insertion depth of the sand retaining plate 8, thereby adjusting the sand outlet speed of the sand-discharging front cover 6.

[0031] like Figures 1 to 4 As shown, the conveying part 2 includes a conveying motor 12, a conveyor belt 15 and a sand bucket 16. The conveying motor 12 is fixedly mounted on the bottom of the frame 5 through a motor seat 13. The conveyor belt 15 is installed in the frame 5 through a tensioning device. The sand bucket 16 is evenly distributed on the outer surface of the conveyor belt 15. The conveyor belt 15 is connected to the working end of the conveying motor 12.

[0032] The conveyor belt 15 is tensioned and installed in the frame 5 through the upper and lower transmission wheels 14. The upper transmission wheel 14 is rotatably installed on the transmission wheel frame 17 through the transmission wheel shaft 18. The transmission wheel frame 17 is fixedly installed on the top of the frame 5; the lower transmission wheel 14 is connected to the rotating shaft of the conveying motor 12. The conveyor belt 15 adopts a customized conveying chain, and the outer side of the outer chain plate of the conveying chain is provided with a protruding piece, and the sand bucket 16 is fixed to the protruding piece by a hexagonal bolt.

[0033] like Figure 1 , Figure 5 and Figure 6 As shown, the test part 3 includes a filter screen 19, a sand screening motor 23 and a vertical sand guide pipe 21. The vertical sand guide pipe 21 is fixedly installed on the right side of the frame 5 through a plurality of pipe clamps 20. The filter screen 19 is connected to the sand screening motor 23 through a filter screen fixing frame 22. The sand screening motor 23 is fixedly installed on the pipe clamp 20 through a motor fixing frame 24. The filter screen 19 is located directly above the vertical sand guide pipe 21. The sand screening motor 23 specifically adopts a linear reciprocating motor. It drives the filter screen 19 to do reciprocating motion to ensure the uniformity of the test sand passing through the filter screen 19.

[0034] like Figure 1 , Figure 7 and Figure 8 As shown, the metering part 4 includes a calibration funnel 26, a collector 30 and a sand collecting box 32. The sand collecting box 32 is placed on the right side of the frame 5. The calibration funnel 26 is installed in the sand collecting box 32 through the vertical plate 25, and the calibration funnel 26 is located directly below the vertical sand guide tube 21. After the fixing hand twist 29 is connected to the sample rack 28, the sample rack 28 is set at the center of the collector 30. The lower end of the collector 30 is provided with a mass sensor 31 for real-time measurement of the weight of the test sand passing through the calibration funnel 26. The collector 30 is located directly below the calibration funnel 26. The vertical plate 25 is provided with a fixing groove, and the two ends of the calibration funnel 26 are respectively inserted into the fixing grooves of the vertical plate 25 at both ends. The upper end of the vertical plate 25 is provided with a threaded hole, and the adjusting hand twist 27 is screwed through the threaded hole to fix the two ends of the calibration funnel 26 in the fixing groove. When adjusting the relative position between the correction funnel 26 and the vertical sand guide tube 21 , loosen the adjustment knob 27 , and both ends of the correction funnel 26 can move forward, backward, left and right in the fixing groove of the vertical plate 25 . After adjusting the correction funnel 26 to a suitable position, tighten the adjustment knob 27 .

[0035] The sand receiving plate 10 is arranged at an angle, the upper end of the sand receiving plate 10 corresponds to the top of the conveyor belt 15 and is located below the sand hopper 16, and the lower end of the sand receiving plate 10 corresponds to the filter screen 19. After the sand in the sand hopper 16 is transported to a high point by the conveyor belt 15, the sand hopper 16 flips over to drive the sand to slide onto the filter screen 19 through the sand receiving plate 10, and then falls into the sand collecting box 32 through the vertical sand guide pipe 21 to complete the metering operation.

[0036] Specifically, it also includes a PLC control box, and the conveying motor 12, the sand screening motor 23 and the quality sensor 31 are all electrically connected to the PLC control box to achieve automatic control.

[0037] The action process of the present invention is as follows:

[0038] Place the raised road sign to be tested on the sample rack 28, tighten the fixing knob 29 to fix the raised road sign on the sample rack 28, and adjust the calibration funnel 26 to an appropriate position. Fill the sand discharge front cover 6 with test sand, start the conveying motor 12 and the sand screening motor 23, and adjust the size of the sand outlet on the sand discharge front cover 6 to an appropriate degree by adjusting the insertion depth of the sand baffle 8, and select an appropriate sand discharge speed. The test sand reaches the sand hopper 16 through the sand outlet of the sand discharge front cover 6, and is then transported to the top of the frame 5, and reaches the filter screen 19 through the sand receiving plate 10. Under the action of the sand screening motor 23, the test sand passes through the filter screen 19 and falls evenly, and reaches the sample rack 28 through the vertical sand guide pipe 21 and the correction funnel 26, and falls onto the collector 30 after impacting the raised road sign. A mass sensor 31 is provided at the lower end of the collector 30. When the test sand passing through the correction funnel 26 reaches the standard requirement of 2.5 kg, the conveying motor 12 and the sand screening motor 23 stop running at the same time, and the test stops automatically.

[0039] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A test machine for the wear resistance of raised road signs, characterized in that: The invention comprises a body part (1), a conveying part (2), a testing part (3) and a measuring part (4); the body part (1) comprises a frame (5), a sand-discharging front cover (6) and a sand-receiving plate (10); the sand-discharging front cover (6) is arranged on the left side of the frame (5); the sand-receiving plate (10) is arranged on the top of the frame (5); the conveying part (2) comprises a conveying motor (12), a conveyor belt (15) and a sand bucket (16); the conveying motor (12) is fixedly mounted on the bottom of the frame (5) through a motor seat (13); the conveyor belt (15) is mounted in the frame (5) through a tensioning device; the sand bucket (16) is evenly distributed on the outer surface of the conveyor belt (15); the conveyor belt (15) is fixedly mounted on the bottom of the frame (5) through a motor seat (13); the conveyor belt (15) is installed in the frame (5) through a tensioning device; the sand bucket (16) is evenly distributed on the outer surface of the conveyor belt (15); the conveyor belt (1 5) is connected to the working end of the conveying motor (12); the test part (3) comprises a filter screen (19), a sand screening motor (23) and a vertical sand guide pipe (21); the vertical sand guide pipe (21) is fixedly mounted on the right side of the frame (5) through a plurality of pipe clamps (20); the filter screen (19) is connected to the sand screening motor (23) through a filter screen fixing frame (22); the sand screening motor (23) is fixedly mounted on the pipe clamp (20) through a motor fixing frame (24); the filter screen (19) is located directly above the vertical sand guide pipe (21); the metering part (4) comprises a correction funnel (26), a collector (30) and a sand collecting box (32); the sand collecting box (32) is placed On the right side of the frame (5), the correction funnel (26) is installed in the sand collecting box (32) through the vertical plate (25), and the correction funnel (26) is located directly below the vertical sand guide tube (21). After the fixing hand twist (29) is connected to the sample rack (28), the sample rack (28) is set at the center of the collector (30). A mass sensor (31) is set at the lower end of the collector (30). The collector (30) is located directly below the correction funnel (26); the sand receiving plate (10) is inclined, the upper end of the sand receiving plate (10) corresponds to the top of the conveyor belt (15) and is located below the sand hopper (16), and the lower end of the sand receiving plate (10) is aligned with the upper end of the conveyor belt (15). The sand in the sand bucket (16) corresponds to the filter screen (19). After the sand in the sand bucket (16) is transported to a high point by the conveyor belt (15), the sand bucket (16) turns over to drive the sand to slide onto the filter screen (19) through the sand receiving plate (10), and then falls into the sand collecting box (32) through the vertical sand guide pipe (21) to complete the metering operation; the conveying part (2) runs through the entire fuselage part (1) and transports the test sand from the bottom of the fuselage part (1) to the test part (3) located on the upper right side of the fuselage part (1). The test sand falls to the metering part (4) located on the lower right side of the fuselage part (1) through the test part (3) for weighing. The metering part (4) is located directly below the test part (3).

2. The raised road marker wear resistance testing machine according to claim 1, characterized in that: The surface of the frame (5) is provided with a side cover (7), the top of the frame (5) is provided with an upper cover (9), and the bottom of the frame (5) is provided with a base side cover (11).

3. The raised road marker wear resistance testing machine according to claim 1, characterized in that: The side wall of the sand-discharging front cover (6) close to the frame (5) is provided with a square sand outlet, and a sand retaining plate (8) is installed in a pluggable manner.

4. The raised road marker wear resistance testing machine according to claim 1, characterized in that: The conveyor belt (15) is tensioned and installed in the frame (5) through two upper and lower transmission wheels (14); the upper transmission wheel (14) is rotatably installed on a transmission wheel frame (17) through a transmission wheel shaft (18); the transmission wheel frame (17) is fixedly installed on the top of the frame (5); the lower transmission wheel (14) is connected to the rotating shaft of the conveying motor (12).

5. The raised road marker wear resistance testing machine according to claim 1, characterized in that: The vertical plate (25) is provided with a fixing groove, and the two ends of the correction funnel (26) are respectively inserted into the fixing grooves of the vertical plates (25) at the two ends. The upper end of the vertical plate (25) is provided with a threaded hole, and the adjusting hand knob (27) is screwed through the threaded hole to fix the two ends of the correction funnel (26) in the fixing groove.

6. The raised road marker wear resistance testing machine according to claim 1, characterized in that: The sand screening motor (23) is specifically a linear reciprocating motor.

7. The raised road marker wear resistance testing machine according to claim 1, characterized in that: The conveyor belt (15) adopts a customized conveying chain, and a protruding piece is arranged on the outer side of the outer chain plate of the conveying chain, and the sand bucket (16) is fixed on the protruding piece by means of hexagonal bolts.

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