Excavator bucket tooth abrasion testing machine

Abstract

The utility model provides an excavator bucket tooth wear testing machine, which comprises a base and a charging barrel positioned above the base, the top of the base is provided with a first fixed rod and a second fixed rod which are positioned on the two sides of the charging barrel, and the outer sides of the first fixed rod and the second fixed rod are respectively and movably sleeved with a first movable frame and a second movable frame; the outer sides, extending out of the top ends of the first moving frame and the second moving frame, of the first fixing rod and the second fixing rod are jointly and fixedly sleeved with a first fixing plate. According to the excavator bucket tooth abrasion testing machine, the bucket tooth can be limited through the fixing pin after being arranged on the clamping block in a sleeving mode, and the bucket tooth can be pressed and fixed to the outer side of the clamping block through the fixing pin while the pull rod can be driven to move by tightening the nut; at the moment, the fixed column is loosened, so that the bucket tooth can be adjusted at any angle around the sphere center of the ball head rod while the limiting block can be released from limiting the ball head rod, and by adopting the structure, the installation and the angle adjustment of the bucket tooth are relatively convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of bucket tooth friction and wear testing, and particularly discloses an excavator bucket tooth wear testing machine. Background Art

[0002] Chinese patent application number CN202123015525.7 discloses a high-precision bucket tooth friction and wear testing device; comprising a hollow base, an electric motor is fixed on the inner side of the hollow base, a rotating clamping shaft is fixed to the upper end of the electric motor rotating shaft, a rubber gasket is fixed to the lower surface of the hollow base, an electric telescopic rod is fixed to the outer side of the hollow base near the lower surface, and a connecting cross bar is fixed to the upper end of the electric telescopic rod. The high-precision bucket tooth friction and wear testing device described in the utility model, through the electric motor, the rotating clamping shaft and the rotating basin, allows the bucket teeth to perform friction and impact tests with different test materials such as soil, stone, sand, etc., simulating different excavation environments, and conveniently discharging the test materials after the test. The test angle of the bucket teeth can be adjusted by the angle adjustment structure. Different test angles result in different states of bucket tooth friction and wear, making the bucket tooth friction and wear test more comprehensive.

[0003] The rotating basin is filled with different test materials such as soil, stones, and sand, and is rotated by an electric motor. Since the overall weight of the driving load is heavy, the power consumption is large, and when adjusting the angle of the bucket teeth, two nuts need to be loosened for adjustment, which is very inconvenient. Utility Model Content

[0004] In view of the above-mentioned defects or deficiencies in the prior art, the present application aims to provide an excavator bucket tooth wear testing machine, comprising a base and a barrel located above the base, wherein the top of the base is provided with a first fixed rod and a second fixed rod located on both sides of the barrel, the outer sides of the first fixed rod and the second fixed rod are movably sleeved with the first movable frame and the second movable frame respectively, and the first fixed rod and the second fixed rod extend out of the outer sides of the top of the first movable frame and the second movable frame and are jointly fixedly sleeved with a first fixed plate, a first guide roller and a second guide roller located above the barrel are fixedly installed between the first movable frame and the second movable frame, a slide is slidably connected between the first guide roller and the second guide roller, the interior of the slide is rotatably connected to a rotating shaft, and the top of the slide is fixedly installed with a servo motor with an output shaft clamped inside the top of the rotating shaft, and the interior of one side of the slide is fixedly sleeved The cam is fixedly mounted on the second movable frame, and the interior of both sides of the first fixed plate are fixedly sleeved with a second electric telescopic rod whose bottom ends are respectively fixedly connected to the first movable frame and the second movable frame, the outer side of the bottom end of the rotating shaft is sleeved with a mounting bracket located on the inner side of the barrel, the interior of the first fixed rod and the second fixed rod are fixedly sleeved with a second fixed plate, the internal thread of the second fixed plate is sleeved with a positioning rod with one end movably sleeved on the inner side of the outer side of the barrel, the inner side of the first movable frame is fixedly mounted with a distance sensor located on one side of the slide seat, the interior of the mounting frame is sleeved with a ball head rod, and the internal thread of the ball head rod is sleeved with a fixing column located above the ball head rod, the outer side of the ball head rod is sleeved with a limiting mechanism located below the mounting frame

[0005] Preferably, rollers located above the base are fixedly mounted on both sides of the bottom of the roller.

[0006] Preferably, the limiting mechanism includes a third fixing plate and a retaining ring clamped on the outside of the bottom end of the ball head rod, a retaining block is provided at the bottom of one side of the third fixing plate, the third fixing plate and the retaining block are internally and movably sleeved with a pull rod, the top outer side of the pull rod extending out of the outside of the third fixing plate is threaded with a nut, and the outside of the bottom end of the pull rod extending to the inside of the retaining block is provided with a fixing sleeve, and the internal movable sleeve of the fixing sleeve is provided with a fixing pin adapted to the bucket tooth.

[0007] Preferably, the inner side of the mounting frame is provided with a chamfer located on the outer side of the ball head rod.

[0008] Preferably, the inner side of the bottom of the clamping block is clamped with a supporting block located below the fixing sleeve. Beneficial effects

[0009] 1. This excavator bucket tooth wear tester can limit the bucket tooth by putting it on the block through the fixing pin, and by tightening the nut, the pull rod can be driven to move while the bucket tooth is pressed and fixed to the outside of the block through the fixing pin. At this time, by loosening the fixing column, the limit block on the ball head rod can be released and the bucket tooth can be adjusted to any angle around the center of the ball head rod. This structure makes the installation and angle adjustment of the bucket tooth more convenient.

[0010] 2. The excavator bucket tooth wear tester can drive the mounting frame to rotate around the axial direction of the rotating shaft through the drive of the servo motor, and at the same time drive the bucket teeth to rotate synchronously around the axial direction of the rotating shaft. The first electric telescopic rod can drive the slide to reciprocate along the outer sides of the first guide roller and the second guide roller while driving the bucket teeth to move. This structure can realize multi-directional wear testing of the bucket teeth. It directly drives the bucket teeth to rotate through the first electric telescopic rod, and at the same time, the overall weight of the driven load is light and the power consumption is small. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Other features, objects and advantages of the present application will become more apparent upon reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0012] Figure 1 This is a schematic diagram of the structure of the utility model;

[0013] Figure 2 It is a front schematic diagram of the structure of the utility model;

[0014] Figure 3 It is a partial schematic diagram of the structure of the utility model;

[0015] Figure 4 It is a partial cross-sectional view of the structure of the utility model;

[0016] Figure 5 It is a schematic diagram of the limiting mechanism of the utility model.

[0017] In the figure: 1. base; 2. barrel; 3. first fixed rod; 4. second fixed rod; 5. first movable frame; 6. second movable frame; 7. first fixed plate; 8. first guide roller; 9. second guide roller; 10. slide; 11. rotating shaft; 12. servo motor; 13. first electric telescopic rod; 14. second electric telescopic rod; 15. mounting frame; 16. second fixed plate; 17. positioning rod; 18. distance sensor; 19. ball head rod; 20. fixing column; 21. limiting mechanism; 211. third fixed plate; 212. snap ring; 213. clamping block; 214. pull rod; 215. nut; 216. fixing sleeve; 217. fixing pin; 22. limiting block; 23. roller; 24. chamfer; 25. support block. DETAILED DESCRIPTION

[0018] The present application will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the relevant utility model and are not intended to limit the utility model. It should also be noted that, for ease of description, only the portions relevant to the utility model are shown in the accompanying drawings.

[0019] The drawings in the embodiments of the present invention: The different types of section lines in the drawings are not marked according to national standards, nor do they impose any requirements on the materials of the components. Instead, they are used to distinguish the cross-sectional views of the components in the drawings.

[0020] See also Figure 1-5, an excavator bucket tooth wear testing machine, including a base 1 and a barrel 2 located above the base 1, a first fixed rod 3 and a second fixed rod 4 are provided on the top of the base 1 on both sides of the barrel 2, the outer sides of the first fixed rod 3 and the second fixed rod 4 are movably sleeved with a first movable frame 5 and a second movable frame 6, and the first fixed rod 3 and the second fixed rod 4 extend out of the outer sides of the top ends of the first movable frame 5 and the second movable frame 6 and are fixedly sleeved with a first fixed plate 7, a first guide roller 8 and a second guide roller 9 located above the barrel 2 are fixedly installed between the first movable frame 5 and the second movable frame 6, a slide 10 is slidably connected between the first guide roller 8 and the second guide roller 9, and the slide 10 The internal rotation is connected with a rotating shaft 11, and the top of the slide 10 is fixedly installed with a servo motor 12 whose output shaft is clamped in the top of the rotating shaft 11. The internal fixed sleeve on one side of the slide 10 is fixedly mounted with a first electric telescopic rod 13 fixedly mounted on the second mobile frame 6. The drive of the first electric telescopic rod 13 can drive the slide 10 to move along the outside of the first guide roller 8 and the second guide roller 9 while driving the bucket teeth to move horizontally, thereby increasing the wear test position of the bucket teeth. The interiors of both sides of the first fixed plate 7 are fixedly mounted with second electric telescopic rods 14 whose bottom ends are fixedly connected to the first mobile frame 5 and the second mobile frame 6 respectively. The drive of 14 can drive the first movable frame 5 and the second movable frame 6 to move along the outside of the first fixed rod 3 and the second fixed rod 4, and at the same time can adjust and control the depth of the bucket teeth inserted into the test material inside the barrel 2. The outer side of the bottom end of the rotating shaft 11 is provided with a mounting frame 15 located inside the barrel 2. The insides of the first fixed rod 3 and the second fixed rod 4 are fixedly provided with a second fixed plate 16. The internal thread of the second fixed plate 16 is sleeved with a positioning rod 17 with one end movably sleeved on the outside of the barrel 2. By being able to rotate the positioning rod 17, it can be sleeved on the outside of the barrel 2 and at the same time the barrel 2 can be limited and fixed by the positioning rod 17. So that the barrel 2 will not move during the wear test of the bucket teeth, a distance sensor 18 located on one side of the slide 10 is fixedly installed on the inner side of the first movable frame 5, a ball head rod 19 is installed inside the mounting frame 15, and the internal thread of the ball head rod 19 is installed with a fixing column 20 located above the ball head rod 19, and the outer side of the ball head rod 19 is installed with a limiting mechanism 21 located below the mounting frame 15, and a limiting block 22 is clamped between the ball head rod 19 and the fixing column 20 on the inner side of the mounting frame 15. By tightening the fixing column 20, the ball head rod 19 can be pressed and fixed by the limiting block 22, thereby preventing the ball head rod 19 from rotating around the center of the ball.

[0021] Among them, rollers 23 located above the base 1 are fixedly installed on both sides of the bottom of the roller 23. The rollers 23 can provide limited support for the barrel 2 and facilitate the removal of the barrel 2 from the top of the base 1, so as to facilitate the filling of different test materials into the barrel 2.

[0022] Among them, the limiting mechanism 21 includes a third fixing plate 211 and a snap ring 212 that are clamped on the outside of the bottom end of the ball head rod 19. The snap ring 212 can limit the third fixing plate 211 while preventing the third fixing plate 211 from falling off the outside of the ball head rod 19. A clamping block 213 is provided at the bottom of one side of the third fixing plate 211. The third fixing plate 211 and the clamping block 213 are internally and movably sleeved with a pull rod 214. The pull rod 214 extends out of the top outer thread of the third fixing plate 211 and is sleeved with a nut 215. The pull rod 214 extends to the outside of the bottom end of the inner side of the block 213 and is provided with a fixing sleeve 216. The internal movable sleeve of the fixing sleeve 216 is provided with a fixing pin 217 adapted to the bucket tooth. The bucket tooth sleeved on the outside of the block 213 can be limited and supported by the fixing pin 217, and the fixing pin 217 can be driven to move upward by the fixing sleeve 216 during the process of tightening the nut 215. At this time, the bucket tooth is pressed and fixed to the outside of the block 213 by the fixing pin 217, so that the bucket tooth is not easy to shake during the wear test.

[0023] Among them, the inner side of the mounting frame 15 is provided with a chamfer 24 located outside the ball head rod 19. The chamfer 24 can increase the swing angle of the ball head rod 19 rotating around the center of the ball, so as to facilitate the adjustment of the test angle of the bucket tooth.

[0024] Among them, the inner side of the bottom of the block 213 is clamped with a support block 25 located below the fixing sleeve 216. By removing the support block 25, the limitation of the fixing sleeve 216 can be released, so that after the nut 215 is removed, the pull rod 214 can be taken out from the inner side of the block 213, and the block 213 can be limited and supported by the support block 25, thereby increasing the structural strength of the block 213 and preventing the block 213 from bending and deforming easily when subjected to external force.

[0025] When the test machine is in use, the bucket teeth are mounted on the outside of the block 213, and the fixing pin 217 is inserted into the inside of the bucket teeth and the fixing sleeve 216, and the nut 215 is tightened. In this process, the fixing pin 217 is driven upward by the fixing sleeve 216, and the bucket teeth are pressed and fixed on the outside of the block 213. The bucket teeth are installed one by one in the above manner, and the bucket teeth are rotated around the center of the ball head rod 19 by loosening the fixing column 20. After the test angle of the bucket teeth is adjusted, the fixing column 20 is tightened. After all the bucket teeth angles are adjusted, the servo motor 12 and the second electric telescopic rod 14 are started. The servo motor 12 drives the mounting frame 15 to rotate around the axial direction of the rotating shaft 11, and at the same time drives the bucket teeth to rotate synchronously around the rotating shaft 11. The bucket teeth are inserted into the test material and the bucket teeth are tested for wear. At this time, the first electric telescopic rod 13 can be started. The slide 10 is driven by the first electric telescopic rod 13 to move along the outer sides of the first guide roller 8 and the second guide roller 9, and the bucket teeth are driven to move in the horizontal direction. The distance sensor 18 can detect the distance moved by the slide 10 and control the drive of the first electric telescopic rod 13 to ensure that the bucket teeth can move back and forth in the horizontal direction under the drive of the first electric telescopic rod 13. The contents not described in detail in this specification belong to the existing technology well known to professional and technical personnel in this field.

[0026] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0027] The above description is merely a preferred embodiment of the present application and an illustration of the technical principles employed. Those skilled in the art should understand that the scope of the utility model disclosed in this application is not limited to the technical solutions formed by the specific combination of the above-mentioned technical features, but also encompasses other technical solutions formed by any combination of the above-mentioned technical features or their equivalents without departing from the concept of the utility model. For example, a technical solution formed by replacing the above-mentioned features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. An excavator bucket tooth wear testing machine, comprising a base (1) and a barrel (2) located above the base (1), characterized in that: The top of the base (1) is provided with a first fixed rod (3) and a second fixed rod (4) located on both sides of the barrel (2), the outer sides of the first fixed rod (3) and the second fixed rod (4) are movably sleeved with a first movable frame (5) and a second movable frame (6), and the first fixed rod (3) and the second fixed rod (4) extend out of the outer sides of the top ends of the first movable frame (5) and the second movable frame (6) and are fixedly sleeved with a first fixed plate (7), a first guide roller (8) and a second guide roller (9) located above the barrel (2) are fixedly installed between the first movable frame (5) and the second movable frame (6), a slide (10) is slidably connected between the first guide roller (8) and the second guide roller (9), the interior of the slide (10) is rotatably connected with a rotating shaft (11), and a servo motor (12) whose output shaft is clamped inside the top end of the rotating shaft (11) is fixedly installed on the top of the slide (10), the interior of one side of the slide (10) is fixedly sleeved with a first electric telescopic rod (13) fixedly installed on the second movable frame (6), the first fixed plate (7) ) are fixedly sleeved with a second electric telescopic rod (14) on both sides of the shaft, the bottom ends of which are fixedly connected to the first mobile frame (5) and the second mobile frame (6), respectively; the outer side of the bottom end of the rotating shaft (11) is sleeved with a mounting frame (15) located inside the barrel (2); the insides of the first fixed rod (3) and the second fixed rod (4) are fixedly sleeved with a second fixed plate (16); the inner thread of the second fixed plate (16) is sleeved with a positioning rod (17) with one end movably sleeved on the inner side of the outer side of the barrel (2); A distance sensor (18) located on one side of a slide seat (10) is fixedly mounted on the inner side of a movable frame (5); a ball head rod (19) is mounted inside the mounting frame (15); and a fixing column (20) located above the ball head rod (19) is mounted on the inner thread of the ball head rod (19); a limiting mechanism (21) located below the mounting frame (15) is mounted on the outer side of the ball head rod (19); and a limiting block (22) located between the ball head rod (19) and the fixing column (20) is clamped on the inner side of the mounting frame (15).

2. The excavator bucket tooth wear testing machine according to claim 1, characterized in that: Rollers (23) located above the base (1) are fixedly mounted on both sides of the bottom of the roller (23).

3. The excavator bucket tooth wear testing machine according to claim 1, characterized in that: The limiting mechanism (21) includes a third fixing plate (211) and a retaining ring (212) that are clamped to the outside of the bottom end of the ball head rod (19); a clamping block (213) is provided at the bottom of one side of the third fixing plate (211); the third fixing plate (211) and the clamping block (213) are internally and movably sleeved with a pull rod (214); the top end of the pull rod (214) extending from the outside of the third fixing plate (211) is threadedly sleeved with a nut (215); and the bottom end of the pull rod (214) extending to the inside of the clamping block (213) is externally and provided with a fixing sleeve (216); the internal movably sleeve of the fixing sleeve (216) is provided with a fixing pin (217) that is adapted to the bucket tooth.

4. The excavator bucket tooth wear testing machine according to claim 1, characterized in that: The inner side of the mounting frame (15) is provided with a chamfer (24) located on the outer side of the ball head rod (19).

5. The excavator bucket tooth wear testing machine according to claim 3, characterized in that: The inner side of the bottom of the clamping block (213) is clamped with a support block (25) located below the fixing sleeve (216).

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