Automatic feeding device of shakeout abrasion tester

Abstract

The utility model discloses an automatic feeding device of a shakeout abrasion tester, which comprises a base, a sand cylinder is arranged at the top of the base, a spiral feeder is arranged on one side of the sand cylinder and detachably mounted at the top of the base, one end, close to the sand cylinder, of the spiral feeder is connected with a mounting frame, and a material guide pipe is erected in the mounting frame. The top end of the material guide pipe communicates with a feeding hopper. According to the utility model, the spiral feeder is arranged, so that sand falling from the feeding hopper can flow into the spiral feeder through the discharging pipe after falling onto a coating sample plate in the sand cylinder through the material guiding pipe, and the sand can be automatically fed into the feeding hopper again through the circulating pipe to be reused through the work of the spiral feeder; and automatic feeding is convenient, meanwhile, the total flow of shakeout can be detected through the solid flow instrument, continuous manual feeding is not needed, time and labor are saved, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of feeding devices, in particular to an automatic feeding device for a falling sand wear tester. Background Art

[0002] The falling sand tester is an instrument for testing the wear resistance of coatings. It allows sand particles of a specific size to fall from a specified height onto the coating sample under the conduit, and calculates the amount of sand required to destroy the coating and expose the bottom. Therefore, when using the falling sand tester, it is necessary to continuously drop sand from the conduit onto the coating sample for testing. At this time, a feeding device for the falling sand wear tester is needed to facilitate feeding.

[0003] Although there are many types and quantities of feeding devices for falling sand abrasion testers at present, there are still certain problems with the existing feeding devices for falling sand abrasion testers, which brings certain inconveniences to the use of the feeding devices for falling sand abrasion testers.

[0004] However, the technical means adopted by most feeding devices of falling sand abrasion testers are to continuously dump sand manually, which greatly limits the use scope of the feeding device of falling sand abrasion tester, and requires manual operation when in use. It is time-consuming and laborious in the process of carrying and dumping, and the material cannot be dumped automatically, which affects the overall work efficiency to a certain extent. Therefore, there is an urgent need for technology that can improve the structure of the feeding device of the falling sand abrasion tester to improve this equipment. Utility Model Content

[0005] The utility model aims to provide an automatic feeding device for a falling sand wear tester, which can automatically feed the abrasive at the bottom of the tester for a cycle test, record and display the usage of the abrasive, and improve the working efficiency.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an automatic feeding device for a falling sand wear tester, comprising a base, a sand barrel is placed on the top of the base, a screw feeder is provided on one side of the sand barrel, the screw feeder is detachably mounted on the top of the base, and a mounting frame is connected to one end of the screw feeder close to the sand barrel.

[0007] A material guide pipe is arranged inside the mounting frame, the top end of the material guide pipe is connected to a feed hopper, a solid flow meter is connected to the outer wall of the material guide pipe, a rotating shaft is rotatably connected inside the screw feeder, a spiral blade arranged in a spiral is fixed to the outer end of the rotating shaft, the bottom end of the rotating shaft extends to the outside of the screw feeder and is connected to a driven wheel, a motor is arranged on the side end of the screw feeder, a driving wheel is fixedly connected to the output end of the motor, and a belt is sleeved between the driving wheel and the driven wheel;

[0008] A discharge pipe is connected between the screw feeder and the sand cylinder, a circulation pipe is connected between the screw feeder and the feed hopper, a support frame is connected to the inner wall of the feed hopper, a spiral stirring paddle penetrates the interior of the support frame, the support frame and the spiral stirring paddle are rotatably connected, and the spiral stirring paddle is driven to rotate by a transmission mechanism between the screw feeder and the feed hopper.

[0009] Preferably, a material guide plate is connected to the inner wall of the sand cylinder, a stopper is connected to the top bottom of the material guide plate, a coating sample is placed above the material guide plate, and an outer wall of the coating sample is in contact with the stopper.

[0010] Preferably, the material guide plate is arranged to be inclined, and the material guide plate is inclined downward toward a side close to the discharge pipe.

[0011] Preferably, a connecting cover plate is threadedly connected to the notch at the bottom end of the circulation pipe, and the circulation pipe is located at the bottom of the support frame.

[0012] Preferably, the top end of the rotating shaft extends to the outside of the spiral feeder and is connected to a first bevel gear, a transmission shaft is provided on one side of the first bevel gear, the transmission shaft extends to the interior of the feed hopper and is rotatably connected to the feed hopper, the left and right ends of the transmission shaft are fixedly connected to second bevel gears, the top end of the spiral agitator is connected to a third bevel gear, the third bevel gear is located above the support frame, the second bevel gear at the left end of the transmission shaft is meshed with the first bevel gear, and the second bevel gear at the right end of the transmission shaft is meshed with the third bevel gear.

[0013] Preferably, the sizes of the first bevel gear, the two second bevel gears and the third bevel gear are the same, and the pitches of the outer end teeth of the first bevel gear, the second bevel gear and the third bevel gear are also equal.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] The utility model provides a spiral feeder, so that the sand material dropped through the feed hopper can flow into the spiral feeder through the discharge pipe after falling onto the coating sample in the sand cylinder through the material guide pipe, and the sand material can be automatically put back into the feed hopper through the circulation pipe through the operation of the spiral feeder for repeated use, and the automatic feeding is more convenient, and the total flow rate of the falling sand can be detected by the solid flow meter at the same time, the device does not need manual continuous feeding, saves time and effort, and improves work efficiency.

[0016] The utility model provides a spiral stirring paddle. When the spiral feeder is working, the rotating shaft can drive the first bevel gear to rotate. The first bevel gear drives the transmission shaft to rotate through meshing with the second bevel gear at the left end of the transmission shaft. The third bevel gear can be driven to rotate through the second bevel gear at the right end of the transmission shaft. The spiral stirring paddle can rotate synchronously, and the sand material in the feed hopper can be continuously fed while avoiding the phenomenon of sand material clogging in the feed hopper, thereby improving the overall use effect.

[0017] The utility model provides a driving wheel and a driven wheel. When the motor is working, the motor can drive the driving wheel to rotate. The driving wheel drives the driven wheel to rotate through a transmission connection formed by a belt. The driven wheel can drive the rotating shaft to rotate, so that the spiral blades rotate to spirally rise the sand material falling into the spiral feeder, and send the sand material to the circulation pipe for subsequent reuse. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 For this utility model Figure 1 A schematic diagram of the partially enlarged structure at center A;

[0020] Figure 3 For this utility model Figure 1 Schematic diagram of the local enlarged structure at point B in the middle.

[0021] In the figure: 1. base; 2. sand cylinder; 3. guide plate; 4. stopper; 5. coating sample; 6. screw feeder; 7. mounting frame; 8. guide pipe; 9. feed hopper; 10. solid flow meter; 11. rotating shaft; 12. spiral blade; 13. driven wheel; 14. motor; 15. driving wheel; 16. belt; 17. discharge pipe; 18. circulation pipe; 19. connecting cover plate; 20. first bevel gear; 21. transmission shaft; 22. second bevel gear; 23. support frame; 24. third bevel gear; 25. spiral stirring paddle. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figures 1 to 3The utility model provides a technical solution: an automatic feeding device for a falling sand wear tester, comprising a base 1, a sand cylinder 2 is placed on the top of the base 1, a screw feeder 6 is provided on one side of the sand cylinder 2, the screw feeder 6 is detachably mounted on the top of the base 1, and a mounting frame 7 is connected to one end of the screw feeder 6 close to the sand cylinder 2.

[0024] A guide pipe 8 is arranged inside the mounting frame 7, the top of the guide pipe 8 is connected to a feed hopper 9, a solid flow meter 10 is connected to the outer wall of the guide pipe 8, a rotating shaft 11 is rotatably connected inside the screw feeder 6, a spiral blade 12 is fixed to the outer end of the rotating shaft 11, the bottom end of the rotating shaft 11 extends to the outside of the screw feeder 6 and is connected to a driven wheel 13, a motor 14 is arranged on the side end of the screw feeder 6, a driving wheel 15 is fixedly connected to the output end of the motor 14, and a belt 16 is sleeved between the driving wheel 15 and the driven wheel 13;

[0025] A discharge pipe 17 is connected between the screw feeder 6 and the sand cylinder 2, a circulation pipe 18 is connected between the screw feeder 6 and the feed hopper 9, a support frame 23 is connected to the inner wall of the feed hopper 9, a spiral stirring paddle 25 penetrates the interior of the support frame 23, the support frame 23 and the spiral stirring paddle 25 are rotatably connected, and the spiral stirring paddle 25 is driven to rotate between the screw feeder 6 and the feed hopper 9 through a transmission mechanism.

[0026] See also Figure 1 A material guide plate 3 is connected to the inner wall of the sand cylinder 2, and a stopper 4 is connected to the top and bottom of the material guide plate 3. A coating sample 5 is placed above the material guide plate 3, and the outer wall of the coating sample 5 is in contact with the stopper 4. The material guide plate 3 is inclined, and the material guide plate 3 is inclined downward toward the side close to the discharge pipe 17. By setting the material guide plate 3 to be inclined downward toward the side close to the discharge pipe 17, the sand particles falling into the sand cylinder 2 can be tilted and rolled to the vicinity of the discharge pipe 17 due to gravity after passing through the coating sample 5, and enter the screw feeder 6. A connecting cover plate 19 is threadedly connected to the notch at the bottom end of the circulation pipe 18, and the circulation pipe 18 is located at the bottom of the support frame 23.

[0027] See also Figures 1 to 3The top of the rotating shaft 11 extends to the outside of the screw feeder 6 and is connected to the first bevel gear 20. A transmission shaft 21 is provided on one side of the first bevel gear 20. The transmission shaft 21 extends to the inside of the feed hopper 9 and is rotatably connected to the feed hopper 9. The left and right ends of the transmission shaft 21 are fixedly connected to the second bevel gear 22. The top of the spiral stirring paddle 25 is connected to the third bevel gear 24. The third bevel gear 24 is located above the support frame 23. The second bevel gear 22 at the left end of the transmission shaft 21 is meshed with the first bevel gear 20. The second bevel gear 22 at the right end of the shaft 21 is meshed with the third bevel gear 24. The sizes of the first bevel gear 20, the two second bevel gears 22 and the third bevel gear 24 are the same, and the pitch of the outer end meshing teeth of the first bevel gear 20, the second bevel gear 22 and the third bevel gear 24 are also equal. By setting the sizes of the first bevel gear 20, the two second bevel gears 22 and the third bevel gear 24 to be the same, the rotation rates of the first bevel gear 20, the second bevel gear 22 and the third bevel gear 24 can also be the same.

[0028] Working principle: When the automatic feeding device of the falling sand wear tester is used, first, the sand is put into the feed hopper 9, and the sand falling from the feed hopper 9 falls onto the coating sample 5 in the sand cylinder 2 through the guide pipe 8 to test the wear resistance of the coating sample 5. After that, the sand particles falling into the sand cylinder 2 can roll down to the vicinity of the discharge pipe 17 due to gravity after passing through the coating sample 5, and enter the screw feeder 6;

[0029] At the same time, the motor 14 works to drive the driving wheel 15 to rotate. The driving wheel 15 drives the driven wheel 13 to rotate through the transmission connection formed by the belt 16. The driven wheel 13 can drive the rotating shaft 11 and the first bevel gear 20 to rotate together, so that the spiral blade 12 rotates to spirally rise the sand material falling into the spiral feeder 6, and feeds it to the circulation pipe 18 so that it can be re-put into the feed hopper 9 for repeated use. The automatic feeding is more convenient. At the same time, the total flow of the falling sand can be detected by the solid flow meter 10, and the amount of abrasive used can be recorded and displayed. The device does not require manual continuous feeding, which saves time and effort and improves work efficiency.

[0030] And when the first bevel gear 20 rotates, the first bevel gear 20 drives the transmission shaft 21 to rotate through the meshing action with the second bevel gear 22 at the left end of the transmission shaft 21, so that the third bevel gear 24 can be driven to rotate through the second bevel gear 22 at the right end of the transmission shaft 21, so that the spiral stirring paddle 25 can rotate synchronously, and the sand material in the feed hopper 9 can be continuously fed while avoiding the phenomenon of sand material blockage in the feed hopper 9, thereby improving the overall use effect.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic feeding device for a falling sand wear tester, comprising a base (1), characterized in that: A sand cylinder (2) is placed on the top of the base (1), and a screw feeder (6) is provided on one side of the sand cylinder (2). The screw feeder (6) is detachably mounted on the top of the base (1), and a mounting frame (7) is connected to one end of the screw feeder (6) close to the sand cylinder (2). A material guide pipe (8) is mounted inside the mounting frame (7), the top end of the material guide pipe (8) is connected to a feed hopper (9), the outer wall of the material guide pipe (8) is connected to a solid flow meter (10), the interior of the screw feeder (6) is rotatably connected to a rotating shaft (11), the outer end of the rotating shaft (11) is fixed with a spirally arranged spiral blade (12), the bottom end of the rotating shaft (11) extends to the outside of the screw feeder (6) and is connected to a driven wheel (13), a motor (14) is mounted on the side end of the screw feeder (6), the output end of the motor (14) is fixedly connected to a driving wheel (15), and a belt (16) is sleeved between the driving wheel (15) and the driven wheel (13); A discharge pipe (17) is connected between the screw feeder (6) and the sand cylinder (2), a circulation pipe (18) is connected between the screw feeder (6) and the feed hopper (9), a support frame (23) is connected to the inner wall of the feed hopper (9), a spiral stirring paddle (25) penetrates the interior of the support frame (23), the support frame (23) and the spiral stirring paddle (25) are rotatably connected, and the screw feeder (6) and the feed hopper (9) are driven to rotate by a transmission mechanism.

2. The automatic feeding device of the falling sand wear tester according to claim 1 is characterized in that: The sand cylinder (2) comprises a material guide plate (3), a stopper (4) and a coating sample (5); the material guide plate (3) is connected to the inner wall of the sand cylinder (2); the top and bottom of the material guide plate (3) are connected to the stopper (4); a coating sample (5) is placed above the material guide plate (3); and the outer wall of the coating sample (5) is in contact with the stopper (4).

3. The automatic feeding device of the falling sand wear tester according to claim 2 is characterized in that: The material guide plate (3) is arranged to be inclined, and the material guide plate (3) is inclined downward toward a side close to the discharge pipe (17).

4. The automatic feeding device of the falling sand wear tester according to claim 1 is characterized in that: A connecting cover plate (19) is threadedly connected at a notch at the bottom end of the circulation pipe (18), and the circulation pipe (18) is located at the bottom of the support frame (23).

5. The automatic feeding device of the falling sand wear tester according to claim 1 is characterized in that: The transmission mechanism comprises a first bevel gear (20), a transmission shaft (21), a second bevel gear (22) and a third bevel gear (24); the top end of the rotating shaft (11) extends to the outside of the screw feeder (6) and is connected to the first bevel gear (20); a transmission shaft (21) is provided on one side of the first bevel gear (20); the transmission shaft (21) extends to the inside of the feed hopper (9) and is rotationally connected to the feed hopper (9); the left and right ends of the transmission shaft (21) are fixedly connected to the second bevel gear (22); the top end of the spiral stirring paddle (25) is connected to the third bevel gear (24); the third bevel gear (24) is located above the support frame (23); the second bevel gear (22) at the left end of the transmission shaft (21) is meshed with the first bevel gear (20); the second bevel gear (22) at the right end of the transmission shaft (21) is meshed with the third bevel gear (24).

6. The automatic feeding device of the falling sand wear tester according to claim 5, characterized in that: The first bevel gear (20), the two second bevel gears (22) and the third bevel gear (24) are all of the same size, and the tooth pitches of the outer end meshing teeth of the first bevel gear (20), the second bevel gear (22) and the third bevel gear (24) are also equal.

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