A wear-resistant performance testing device for wear-resistant accessories of mixer

Abstract

The present invention relates to a wear-resistant performance testing device for wear-resistant accessories of a mixer, comprising a base, a lever, an abrasive wheel, a motor for driving the abrasive wheel, a counterweight assembly, a clamping assembly for clamping the wear-resistant accessories, and a height measuring tool, wherein the lever is hinged on the base, the abrasive wheel, the motor and the counterweight assembly are arranged at the head end of the lever, the clamping assembly is arranged on the base below the abrasive wheel, and the height measuring tool can measure the height of the rear end of the lever. The present invention utilizes the lever principle for loading and measuring, can efficiently and reliably complete the wear resistance test of the wear-resistant accessories of the mixer, and the present invention has a simple structure, low cost, and good application prospects.

Description

Technical Field

[0001] The invention belongs to the technical field of metal material wear resistance detection, and in particular relates to a wear resistance performance testing device for wear-resistant accessories of a mixer. Background Art

[0002] A mixer is an important construction machine that can mix a variety of raw materials by rotating the blades in the mixing cylinder. It is widely used in various construction, highway, bridge and other projects. After the mixer works for a long time, the mixture will cause wear on the mixer blades and linings, seriously affecting the mixing quality and mixing efficiency of the mixture. Practice has proved that the wear of the mixer blades and linings has become an important reason affecting the mixing quality and mixing efficiency.

[0003] At present, most domestic mixer manufacturers cooperate with foundries to produce wear-resistant parts such as mixer blades and liners. There are many manufacturers producing special wear-resistant parts for mixers on the market, with uneven quality and large differences in cost performance. Therefore, it has become a problem for manufacturers to quickly and accurately select wear-resistant parts with good wear resistance and high cost performance from different manufacturers. For mixer manufacturers, the wear resistance of wear-resistant parts such as mixer blades and liners is mainly reflected by actual use, or professional quality inspection agencies are found to sample different samples to check the chemical composition and composition of wear-resistant parts. For the first method, manufacturers can only passively choose foundries with good reputation and high prices, and lack the right to actively choose; the second method is costly, and the comparability of sample inspection results is poor, and it is highly professional, and finally it still needs to be further verified through practice. The above methods all need to verify the wear resistance of wear-resistant parts from different manufacturers through actual construction applications. The test cycle is long, the cost is high, and there is a lack of intermediate experimental optimization links. It is difficult to obtain the optimization effect in a short period of time, which increases the maintenance cost of mixer manufacturers. Summary of the invention

[0004] The purpose of the present invention is to overcome the shortcomings of the above method for verifying the wear resistance of mixer wear-resistant accessories, such as long test cycle, high cost, and difficulty in obtaining optimal results in a short period of time, and to provide a wear resistance performance testing device for mixer wear-resistant accessories.

[0005] In order to solve the above technical problems, the present invention is implemented through the following technical solutions: a wear resistance performance testing device for wear-resistant accessories of a mixer, comprising a base, a lever, an abrasive wheel, a motor for driving the abrasive wheel, a counterweight assembly, a clamping assembly for clamping the wear-resistant accessories and a height measuring tool, wherein the lever is hinged on the base, the abrasive wheel, the motor and the counterweight assembly are arranged at the head end of the lever, the clamping assembly is arranged on the base below the abrasive wheel, and the height measuring tool can measure the height of the tail end of the lever.

[0006] As a further improvement of the wear resistance performance testing device of the wear-resistant accessories of a mixer of the present invention, the testing device also includes a water injection assembly, the water injection assembly includes a water tank arranged above the abrasive wheel, and a water outlet is provided at the lower part of the water tank.

[0007] As a further improvement of the wear resistance performance testing device for wear-resistant accessories of a mixer according to the present invention, a measuring platform is further provided on the base, and the measuring platform is located below the tail end of the lever.

[0008] As a further improvement of the wear resistance performance testing device of the wear-resistant accessories of a mixer of the present invention, the clamping assembly includes a reference plate and a clamping plate. The reference plate is fixed on the base below the abrasive wheel. A clamping plate is provided above the reference plate. The clamping plate is connected to the base by bolts.

[0009] As a further improvement of the wear resistance performance testing device of the wear-resistant accessories of a mixer according to the present invention, a positioning reference block is provided on the reference plate, and the positioning reference block is located between the two clamping plates.

[0010] As a further improvement of the wear resistance performance testing device of the wear-resistant accessories of a mixer according to the present invention, the motor is connected to the abrasive wheel through a speed reducer.

[0011] As a further improvement of the wear resistance performance testing device of the wear-resistant accessories of a mixer according to the present invention, the distance from the lever head end to the lever fulcrum is smaller than the distance from the lever tail end to the lever fulcrum.

[0012] As a further improvement of the wear resistance performance testing device of the wear-resistant accessories of a mixer according to the present invention, the ratio of the distance from the lever head end to the lever fulcrum to the distance from the lever tail end to the lever fulcrum is 1:3~1:5.

[0013] As a further improvement of the wear resistance performance testing device of the wear-resistant accessories of a mixer of the present invention, the lever is hinged on the base through a lever shaft, and both ends of the lever shaft are connected to the base through bearings.

[0014] As a further improvement of the wear resistance performance testing device of a mixer wear-resistant accessory of the present invention, the counterweight assembly includes a counterweight block, a support rod, a screw and a pressure plate, the screw is fixed on the support rod, the pressure plate and the screw are cooperatively sleeved, and a counterweight block is provided between the pressure plate and the support rod.

[0015] The wear resistance performance testing device for wear-resistant accessories of a mixer provided by the present invention utilizes the lever principle for loading and measuring, and can efficiently and reliably complete the wear resistance test of the wear-resistant accessories of the mixer, providing a technical means for mixer manufacturers to obtain preferred wear-resistant accessories in a short period of time. By optimizing the wear-resistant accessories, the manufacturing and maintenance costs of the mixer can be saved, and the reliability and service life of the mixing equipment can be improved. The present invention has a simple structure, low manufacturing cost, and good application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the wear resistance testing device of the present invention;

[0017] Figure 2 It is a front view of the wear resistance testing device of the present invention;

[0018] Figure 3 It is a side view of the wear resistance testing device of the present invention;

[0019] Figure 4 A schematic diagram of the lever structure of the wear resistance testing device of the present invention;

[0020] Figure 5 It is a schematic diagram of the structure of the clamping assembly of the wear resistance testing device of the present invention;

[0021] Figure numerals: 1. base, 2. lever, 3. abrasive wheel, 4. motor, 5. water tank, 6. measuring table, 7. reference plate, 8. clamping plate, 9. positioning reference block, 10. reducer, 11. lever shaft, 12. bearing, 13. counterweight, 14. support rod, 15. screw, 16. clamping plate. DETAILED DESCRIPTION

[0022] The technical solution of the wear resistance performance testing device for wear-resistant accessories of a mixer of the present invention is further described below in conjunction with the embodiments and drawings.

[0023] like Figures 1 to 5As shown, a wear resistance performance testing device for wear-resistant accessories of a mixer comprises a base 1, a lever 2, an abrasive wheel 3, a motor 4, a counterweight assembly, a clamping assembly for clamping the wear-resistant accessories and a height measuring tool, wherein the lever 2 is hinged on the base 1, the lever 2 is connected to the base 1 through a lever shaft 11 and bearings 12 at both ends of the lever shaft 11, the lever 2 is vertically welded to the lever shaft 11, the lever shaft 11 is horizontally arranged, the ratio of the distance from the head end of the lever 2 to the lever fulcrum to the distance from the tail end of the lever 2 to the lever fulcrum can be 1:3, 1:4 or 1:5; the abrasive wheel 3, the motor 4 and the counterweight assembly are arranged at the head end of the lever 2, the motor 4 is connected to the abrasive wheel 3 through a reducer 10, and the reducer The machine 10 is installed at the head end of the lever 2, and the motor 4 is fixed on the reducer 10 through a flange. The input hole of the reducer 10 is connected with the motor shaft, and the output hole is connected with one end of the transmission shaft. The transmission shaft is arranged horizontally, and the other end of the transmission shaft is installed with an abrasive wheel 3. In order to ensure the stable operation of the abrasive wheel 3 during the test and reduce the error of the test system, the abrasive wheel 3 is fixed on the transmission shaft through nuts on both sides thereof. The material of the abrasive wheel 3 can be a grinding wheel. A shaft end retaining ring is provided between the abrasive wheel 3 and the nut to axially position the abrasive wheel 3. A nylon sleeve is provided between the abrasive wheel 3 and the transmission shaft to radially position the abrasive wheel 3; a clamping group for clamping wear-resistant accessories is provided on the base 1 below the abrasive wheel 3 The clamping assembly includes a reference plate 7 and a clamping plate 8. The reference plate 7 is fixed on the base 1 below the abrasive wheel 3. A clamping plate 8 is provided above the reference plate 7. The clamping plate 8 is connected to the base 1 by bolts. A positioning reference block 9 is provided on the reference plate 7. The positioning reference block 9 is located between the two clamping plates 8 to ensure that the initial installation position of the sample remains unchanged for each test. The clamping plate 8 is in the shape of a long strip. Two mutually parallel clamping plates 8 are respectively connected to the base 1 by bolts. The wear-resistant part can move relative to the clamping plate 8 to ensure that one wear-resistant part can undergo multiple wear tests. The spacing between the two clamping plates 8 is greater than the width of the abrasive wheel 3, and a nut disassembly and assembly space is reserved. The abrasive wheel 3 can be clamped on the two clamping plates 8 The lever 2 can move up and down between them; a measuring platform 6 is provided on the base 1 below the tail end of the lever 2, and the height measuring tool is a height gauge, which can measure the distance from the tail end of the lever 2 to the measuring platform 6; a water tank 5 is provided on the base 1, and the water tank 5 is located above the abrasive wheel 3. A water outlet is provided at the lower part of the water tank 5, and a water receiving basin is provided under the abrasive wheel to recover the injected water; the counterweight includes a counterweight block 13, a support rod 14, a lead screw 15 and a clamping plate 16, the lead screw 15 is fixed on the support rod 14, the clamping plate 16 is sleeved with the lead screw 15, and a counterweight block 13 is provided between the clamping plate 16 and the support rod 14, and the number of the counterweight blocks 13 can be adjusted according to the wear-resistant accessories to be measured to meet the needs of different loads.

[0024] The working process of the present invention is as follows: first, lift one end of the lever 2 provided with the abrasive wheel 3, install the wear-resistant accessories on the clamping assembly, then clamp the corresponding number of counterweights 13, make the abrasive wheel 3 contact the wear-resistant accessories, use a height gauge to measure the height value of the rear end of the lever 2 from the measuring platform 6, then turn on the motor 4 switch, and open the water outlet of the water tank 5 to make water droplets fall on the abrasive wheel 3 and the wear-resistant accessories. The abrasive wheel 3 wears the wear-resistant accessories at a certain speed, load and specified time. After the specified time is reached, the motor 4 is turned off, and the height value of the rear end of the lever 2 from the measuring platform 6 is measured using a height gauge, so that the reference base height change of the rear end of the lever 2 before and after wear can be obtained to reflect the actual wear depth of the wear-resistant accessories. As one of the wear resistance evaluation indicators, the preferred wear-resistant accessories can be obtained by comparing the wear conditions of different accessories.

[0025] The wear resistance performance testing device for wear-resistant accessories of a mixer provided by the present invention utilizes the lever principle for loading and measuring, and can efficiently and reliably complete the wear resistance test of the wear-resistant accessories of the mixer, providing a technical means for mixer manufacturers to obtain preferred wear-resistant accessories in a short period of time. By optimizing the wear-resistant accessories, the manufacturing and maintenance costs of the mixer can be saved, and the reliability and service life of the mixing equipment can be improved. The present invention has a simple structure, low manufacturing cost, and good application prospects.

[0026] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with the profession can make some changes or modifications to equivalent embodiments of equivalent changes using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, all such changes without departing from the contents of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A wear resistance performance testing device for wear-resistant accessories of a mixer, characterized in that: The invention comprises a base (1), a lever (2), an abrasive wheel (3), a motor (4) for driving the abrasive wheel (3), a counterweight assembly, a clamping assembly for clamping wear-resistant accessories, and a height measuring tool, wherein the lever (2) is hinged on the base (1), the abrasive wheel (3), the motor (4) and the counterweight assembly are arranged at the head end of the lever (2), the clamping assembly is arranged on the base (1) below the abrasive wheel (3), and the height measuring tool can measure the height of the tail end of the lever (2); The distance between the head end of the lever (2) and the lever fulcrum is smaller than the distance between the tail end of the lever (2) and the lever fulcrum; The counterweight assembly comprises a counterweight block (13), a support rod (14), a lead screw (15) and a clamping plate (16); the lead screw (15) is fixed on the support rod (14); the clamping plate (16) and the lead screw (15) are sleeved in a matching manner; and a counterweight block (13) is provided between the clamping plate (16) and the support rod (14); The clamping assembly comprises a reference plate (7) and a clamping plate (8), wherein the reference plate (7) is fixed on a base (1) below the abrasive wheel (3), and a clamping plate (8) is provided above the reference plate (7), and the clamping plate (8) is connected to the base (1) via bolts; The reference plate (7) is provided with a positioning reference block (9), and the positioning reference block (9) is located between the two clamping plates (8); The clamping plate (8) is in the shape of an elongated strip, and two mutually parallel clamping plates (8) are respectively connected to the base (1) via bolts.

2. A wear resistance performance testing device for wear-resistant accessories of a mixer according to claim 1, characterized in that: The testing device further comprises a water injection assembly, which comprises a water tank (5) arranged above the abrasive wheel (3), and a water outlet hole is arranged at the lower part of the water tank (5).

3. The wear resistance performance testing device for wear-resistant accessories of a mixer according to claim 1, characterized in that: The base (1) is also provided with a measuring platform (6), and the measuring platform (6) is located below the tail end of the lever (2).

4. The wear resistance performance testing device for wear-resistant accessories of a mixer according to claim 1, characterized in that: The motor (4) is transmission-connected to the abrasive wheel (3) via a reducer (10).

5. The wear resistance performance testing device for wear-resistant accessories of a mixer according to claim 1, characterized in that: The ratio of the distance from the head end of the lever (2) to the lever fulcrum to the distance from the tail end of the lever (2) to the lever fulcrum is 1:3 to 1:

5.

6. The wear resistance performance testing device for wear-resistant accessories of a mixer according to claim 1, characterized in that: The lever (2) is hinged on the base (1) via a lever shaft (11), and both ends of the lever shaft (11) are connected to the base (1) via bearings (12).

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