High-precision bucket tooth friction wear testing device

Abstract

The utility model relates to a high-precision bucket tooth friction wear testing device which comprises a testing basin, a compacting mechanism used for compacting soil, stone and sand is arranged on the testing basin, the compacting mechanism comprises a fixing ring fixedly installed on the outer surface of the testing basin, and a supporting rod is fixedly installed on the upper surface of the fixing ring. A mounting plate is fixedly mounted at the top of the supporting rod, and an electric telescopic rod is fixedly mounted on the lower surface of the mounting plate. According to the high-precision bucket tooth friction wear testing device, the compacting mechanism is arranged on the testing basin, so that soil, stones and sand in the testing basin can be compacted during use, and the soil, the stones and the sand in the testing basin are more compact; the structure of soil, stone and sand in the testing basin is closer to that of soil, stone and sand in a natural state, the actual working environment of the bucket tooth can be restored to the maximum extent, and the problem that the testing precision is poor due to the fact that the difference of the working environment is large is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of bucket teeth, in particular to a high-precision bucket tooth friction and wear testing device. Background Art

[0002] Bucket teeth refer to the tooth-shaped parts on the excavator bucket, which are used to dig and grab soil, rocks and other materials. Bucket teeth are usually made of high-strength alloy steel and are wear-resistant, corrosion-resistant and impact-resistant. Bucket teeth are usually installed on the excavator bucket by bolts or welding for easy replacement and maintenance.

[0003] Chinese patent CN216525292U discloses a high-precision bucket tooth friction and wear testing device, including a hollow base, an electric motor is fixed on the inner side of the hollow base, a rotating clamping shaft is fixed on the upper end of the electric motor rotating shaft, a rubber gasket is fixed on the lower surface of the hollow base, an electric telescopic rod is fixed on the outer side of the hollow base near the lower surface, and a connecting cross bar is fixed on the upper end of the electric telescopic rod.

[0004] The above patent improves the shortcomings of the bucket tooth friction and wear testing device in the prior art that it cannot simulate different excavation test environments. The technical solution in this patent puts soil, stones and sand directly into a rotating basin during implementation, and the bucket teeth are brought into contact and friction with the soil, stones and sand by rotating the rotating basin. This technical solution simulates the working environment of the bucket teeth only by putting soil, stones and sand in the rotating basin, and the soil, stones and sand are relatively loose, while in actual conditions the soil, stones and sand are extremely compact. Therefore, the bucket tooth working environment simulated by the test device is quite different from the actual bucket tooth working environment, which makes the test of the bucket teeth not objective enough and results in poor test accuracy of the bucket teeth. Utility Model Content

[0005] In view of the shortcomings of the prior art, the utility model provides a high-precision bucket tooth friction and wear testing device, which has the advantage of high testing accuracy and solves the problem that the bucket tooth friction and wear testing device in the prior art simulates the working environment of the bucket tooth by placing soil, stones and sand in a rotating basin, while the soil, stones and sand are relatively loose, while in actual conditions the soil, stones and sand are extremely compact. Therefore, the bucket tooth working environment simulated by the testing device is quite different from the actual bucket tooth working environment, which makes the test of the bucket tooth not objective enough and leads to the problem of poor testing accuracy of the bucket tooth.

[0006] To achieve the above-mentioned object, the utility model provides the following technical solutions: a high-precision bucket tooth friction and wear testing device, comprising a test basin, on which a compacting mechanism for compacting soil, stone and sand is provided;

[0007] The compacting mechanism includes a fixing ring fixedly mounted on the outer surface of the test basin, a supporting rod fixedly mounted on the upper surface of the fixing ring, a mounting plate fixedly mounted on the top of the supporting rod, an electric telescopic rod fixedly mounted on the lower surface of the mounting plate, a clamping plate fixedly mounted on the bottom of the electric telescopic rod, an extrusion rod fixedly mounted on the lower surface of the clamping plate, and a bucket tooth driving mechanism is provided on the clamping plate.

[0008] Furthermore, the number of the support rods is three, the distances between two adjacent support rods are equal, and the three support rods are distributed in a triangle shape between the fixed ring and the surface of the mounting plate on one side opposite to the other.

[0009] Furthermore, there are two electric telescopic rods, and the electric telescopic rods are close to the center of the mounting plate.

[0010] Furthermore, the outer shape and size of the compression plate are matched with the inner shape and size of the test basin, and the side surface of the compression plate is in sliding contact with the inner surface of the test basin.

[0011] Furthermore, the number of the extrusion rods is six, the distance between two adjacent extrusion rods is equal, and the extrusion rods are close to the edge of the pressing plate.

[0012] Furthermore, the bucket tooth driving mechanism includes a fixed bracket fixedly mounted on the upper surface of the clamping plate, a hydraulic telescopic rod is fixedly mounted on the inner surface of the fixed bracket, and a bucket tooth mounting seat is fixedly mounted on the bottom of the hydraulic telescopic rod.

[0013] Furthermore, a circular hole is opened on the surface of the clamping plate, and the circular hole is located directly below the bucket tooth mounting seat.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0015] The high-precision bucket tooth friction and wear testing device is provided with a compacting mechanism on the test basin. When in use, the soil, stones and sand in the test basin can be compacted, making the soil, stones and sand in the test basin more compact and closer to the soil, stones and sand in the natural state. The actual working environment of the bucket tooth can be restored to the greatest extent, which is beneficial to avoid the problem of poor test accuracy caused by large differences in working environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the compression plate of the utility model structure;

[0018] Figure 3 For this utility model Figure 1Enlarged schematic diagram at point A in the middle.

[0019] In the figure: 1. test basin; 2. fixing ring; 3. support rod; 4. mounting plate; 5. electric telescopic rod; 6. clamping plate; 7. extrusion rod; 8. fixing bracket; 9. hydraulic telescopic rod; 10. bucket tooth mounting seat; 11. round hole. DETAILED DESCRIPTION

[0020] 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.

[0021] See also Figure 1-3 In this embodiment, a high-precision bucket tooth friction and wear testing device includes a test basin 1, and the test basin 1 is provided with a compacting mechanism for compacting soil, stones and sand. The compacting mechanism includes a fixing ring 2 fixedly installed on the outer surface of the test basin 1, and a support rod 3 is fixedly installed on the upper surface of the fixing ring 2. A mounting plate 4 is fixedly installed on the top of the support rod 3. The number of the support rods 3 is three, and the spacing between two adjacent support rods 3 is equal. The three support rods 3 are distributed in a triangular shape between the surfaces of the fixing ring 2 and the mounting plate 4 on opposite sides, which is conducive to improving the supporting stability of the support rods 3 on the mounting plate 4. An electric telescopic rod 5 is fixedly installed on the lower surface of the mounting plate 4. There are two electric telescopic rods 5, which are close to the center of the mounting plate 4. A clamping plate 6 is fixedly installed on the bottom of the electric telescopic rod 5. The external shape and size of the clamping plate 6 are adapted to the internal shape and size of the test basin 1. The side surface of the clamping plate 6 is in sliding contact with the inner surface of the test basin 1, which is convenient for the clamping plate 6 to move up and down in the test basin 1. Extrusion rods 7 are fixedly installed on the lower surface of the clamping plate 6. There are six extrusion rods 7. The spacing between two adjacent extrusion rods 7 is equal, and the extrusion rods 7 are close to the edge of the clamping plate 6.

[0022] A bucket tooth driving mechanism is provided on the clamping plate 6, and the bucket tooth driving mechanism includes a fixed bracket 8 fixedly mounted on the upper surface of the clamping plate 6, a hydraulic telescopic rod 9 is fixedly mounted on the inner surface of the fixed bracket 8, and a bucket tooth mounting seat 10 is fixedly mounted on the bottom of the hydraulic telescopic rod 9, which is convenient for installing bucket teeth and driving the bucket teeth to operate. A circular hole 11 is opened on the surface of the clamping plate 6, and the circular hole 11 is located directly below the bucket tooth mounting seat 10, which is convenient for the bucket tooth mounting seat 10 and the bucket teeth to pass through the clamping plate 6.

[0023] The working principle of the above embodiment is:

[0024] When in use, put soil, stones and sand into the test basin 1, start the electric telescopic rod 5, and drive the compression plate 6 to move downward in the test basin 1 through the electric telescopic rod 5, so that the extrusion rod 7 is inserted into the soil, stones and sand, so that the compression plate 6 is in contact with the soil, stones and sand, and the loose soil, stones and sand are compressed by the compression plate 6, and then the soil, stones and sand are further squeezed by the extrusion rod 7 to make the soil, stones and sand more compact, and then the bucket tooth is installed on the bucket tooth mounting seat 10, and the hydraulic telescopic rod 9 is started. The bucket tooth mounting seat 10 and the bucket tooth are driven to move forward by the hydraulic telescopic rod 9, so that the bucket tooth mounting seat 10 and the bucket tooth pass through the circular hole 11 through the compression plate 6 until the bucket tooth is inserted into the soil, stones and sand. When the bucket tooth is completely immersed in the soil, stones and sand, the bucket tooth and the bucket tooth mounting seat 10 are lifted up by the hydraulic telescopic rod 9, and this cycle is repeated to perform a wear test on the bucket tooth.

[0025] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0026] 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. A high-precision bucket tooth friction and wear testing device, comprising a test basin (1), characterized in that: The test basin (1) is provided with a compacting mechanism for compacting soil, stones and sand; The compacting mechanism comprises a fixing ring (2) fixedly mounted on the outer surface of the test basin (1); a support rod (3) is fixedly mounted on the upper surface of the fixing ring (2); a mounting plate (4) is fixedly mounted on the top of the support rod (3); an electric telescopic rod (5) is fixedly mounted on the lower surface of the mounting plate (4); a pressing plate (6) is fixedly mounted on the bottom of the electric telescopic rod (5); a squeezing rod (7) is fixedly mounted on the lower surface of the pressing plate (6); and a bucket tooth driving mechanism is provided on the pressing plate (6).

2. A high-precision bucket tooth friction and wear testing device according to claim 1, characterized in that: The number of the support rods (3) is three, the spacing between two adjacent support rods (3) is equal, and the three support rods (3) are distributed in a triangular shape between the surfaces of the fixing ring (2) and the mounting plate (4) on opposite sides.

3. A high-precision bucket tooth friction and wear testing device according to claim 1, characterized in that: The number of the electric telescopic rods (5) is two, and the electric telescopic rods (5) are close to the center position of the mounting plate (4).

4. A high-precision bucket tooth friction and wear testing device according to claim 1, characterized in that: The external shape and size of the compression plate (6) are matched to the internal shape and size of the test basin (1), and the side surface of the compression plate (6) is in sliding contact with the inner surface of the test basin (1).

5. The high-precision bucket tooth friction and wear testing device according to claim 1, characterized in that: The number of the extrusion rods (7) is six, the distance between two adjacent extrusion rods (7) is equal, and the extrusion rods (7) are close to the edge of the pressing plate (6).

6. The high-precision bucket tooth friction and wear testing device according to claim 1, characterized in that: The bucket tooth driving mechanism comprises a fixed bracket (8) fixedly mounted on the upper surface of a pressure plate (6), a hydraulic telescopic rod (9) fixedly mounted on the inner surface of the fixed bracket (8), and a bucket tooth mounting seat (10) fixedly mounted on the bottom of the hydraulic telescopic rod (9).

7. A high-precision bucket tooth friction and wear testing device according to claim 6, characterized in that: A circular hole (11) is provided on the surface of the clamping plate (6), and the circular hole (11) is located directly below the bucket tooth mounting seat (10).

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