Impact corrosion and wear resistance testing device and use method

Abstract

The invention discloses an impact corrosion and wear resistance test device and a use method, and relates to the technical field of test equipment. The impact corrosion and wear resistance test device comprises a test tank body, a corrosion assembly, a wear assembly and an impact assembly, wherein the test tank body is provided with an accommodating space; the corrosion assembly comprises a discharge part, and the discharge part is arranged in the test tank body and is used for injecting a corrosion medium into the accommodating space; the abrasion assembly comprises a friction piece and a first driving piece, the friction piece is arranged in the containing space and makes contact with the sample, and the first driving piece drives the friction piece to move relative to the sample; the impact assembly comprises an impact hammer and a second driving piece, and the second driving piece drives the impact hammer to intermittently impact the friction piece, so that impact pressure is transmitted to the sample through the friction piece. According to the impact corrosion and wear resistance testing device, three working conditions of corrosion, impact and wear are coupled to act on the sample, and the accuracy and reliability of part performance evaluation are improved.

Description

Technical Field

[0001] This application relates to the technical field of test equipment, and particularly to a test device for impact corrosion and wear resistance and a usage method thereof. Background Art

[0002] Key components in mining machinery, such as crusher liners and shovel teeth, are subjected to impact wear of ores and other materials in a corrosive environment for a long time. Their service conditions are extremely harsh and the failure mechanism is complex. To accurately evaluate the performance of these components in actual applications, performance tests need to be carried out on the components. In the test experiment, the effects of various working conditions need to be simulated.

[0003] However, existing test equipment is difficult to simultaneously apply impact load and friction load to test specimens placed in a corrosive environment, so that the three working conditions of corrosion, impact and wear cannot act on the specimens in a coupled manner, reducing the accuracy and reliability of the performance evaluation of related components. Summary of the Invention

[0004] In view of this, this application provides a test device for impact corrosion and wear resistance and a usage method thereof, aiming to solve one of the technical problems in the prior art.

[0005] To achieve the above object, the technical solutions adopted in this application are as follows:

[0006] In the first aspect, this application provides a test device for impact corrosion and wear resistance, including:

[0007] A test tank body, having a receiving space, and the specimen is disposed in the receiving space;

[0008] A corrosion component, including a discharge member, the discharge member is disposed on the test tank body for injecting a corrosion medium into the receiving space so that the specimen contacts the corrosion medium;

[0009] A wear component, including a friction member and a first driving member, the friction member is disposed in the receiving space and contacts the specimen, and the first driving member drives the friction member to move relative to the specimen;

[0010] An impact component, including an impact hammer and a second driving member, the second driving member drives the impact hammer to intermittently impact the friction member so that the impact pressure is transmitted to the specimen through the friction member.

[0011] In an optional embodiment, the test tank body includes:

[0012] A main tank body, and the receiving space is disposed in the main tank body;

[0013] An overflow tank body is provided at the opening of the main tank body. The overflow tank body is connected to the main tank body and defines a liquid storage space. The liquid storage space is annular and surrounds the peripheral side of the accommodation space.

[0014] In an alternative embodiment, the friction member includes:

[0015] A rolling friction pair. The specimen is placed at the bottom of the main tank body. The rolling friction pair is arranged in the main tank body and is placed on the side of the specimen away from the main tank body.

[0016] A sliding friction pair. The sliding friction pair is placed on the side away from the specimen of the rolling friction pair and is located above the opening of the main tank body.

[0017] In an alternative embodiment, the wear component further includes:

[0018] A first connecting member. The first connecting member is connected to the sliding friction pair and is arranged above the opening of the overflow tank body.

[0019] A limiting flap. The limiting flap is connected to the first connecting member and is inserted into the liquid storage space.

[0020] In an alternative embodiment, the wear component further includes:

[0021] A shock absorber. The shock absorber is connected to the side of the first connecting member away from the main tank body.

[0022] A second connecting member. The second connecting member is connected to the side of the shock absorber away from the first connecting member.

[0023] In an alternative embodiment, the wear component further includes a counterweight. The counterweight is arranged on the second connecting member. The counterweight is used to transmit the gravity in the first direction to the friction member through the first connecting member.

[0024] In an alternative embodiment, the first driving member includes a first driver, a first positioning sleeve, and a first transmission rod. The communication direction of the first positioning sleeve is perpendicular to the first direction. The first transmission rod passes through the first positioning sleeve. The first transmission rod connects the output end of the first driver and the second connecting member. The first driving member drives the first transmission rod and the wear component to move in a plane perpendicular to the first direction.

[0025] In an alternative embodiment, the second connecting member is provided with a through hole, the communication direction of the through hole is parallel to the first direction, the second driving member includes a second transmission rod and a second driver, the second transmission rod is connected to the impact hammer, and the second driver drives the second transmission rod to intermittently rotate in a direction close to the second connecting member, so that the impact hammer intermittently passes through the through hole to impact the friction member.

[0026] In an alternative embodiment, the test device further includes a control assembly, and the corrosion assembly further includes a valve, the valve is communicated with the discharge member, and the valve, the first driving member and the second driving member are respectively electrically connected to the control assembly.

[0027] In a second aspect, the present application provides a method for using the impact corrosion and wear resistant test device according to any one of the foregoing embodiments, including:

[0028] Install the corrosion assembly, wear assembly and impact assembly in the test tank body;

[0029] Conduct a test on the specimen under any one of the working conditions of corrosion, wear and impact;

[0030] Alternatively, conduct a test on the specimen under the coupling of any two of the working conditions of corrosion, wear and impact;

[0031] Alternatively, conduct a test on the specimen under the coupling of the three working conditions of corrosion, wear and impact.

[0032] Compared with the prior art, the beneficial effects of the present application are: the present application provides an impact corrosion and wear resistant test device, including a test tank body, a corrosion assembly, a wear assembly and an impact assembly. The test tank body has a receiving space, and the specimen is arranged in the receiving space. The corrosion assembly includes a discharge member, which is arranged on the test tank body and used to inject a corrosion medium into the receiving space so that the specimen contacts the corrosion medium. The wear assembly includes a friction member and a first driving member. The friction member is arranged in the receiving space and contacts the specimen, and the first driving member drives the friction member to move relative to the specimen; the impact assembly includes an impact hammer and a second driving member, and the second driving member drives the impact hammer to intermittently impact the friction member, so that the impact pressure is transmitted to the specimen through the friction member. The friction member and the impact hammer are respectively driven by different driving members, so that the wear test and the impact test run independently without interfering with each other, and at the same time, the impact force is transmitted to the specimen through the friction member, simulating the impact wear of parts in reality. The specimen also contacts the corrosion medium, realizing the coupling of the three working conditions of corrosion, impact and wear on the specimen, maximizing the restoration of the working environment of parts in reality, and improving the accuracy and reliability of part performance evaluation. Description of the Drawings

[0033] To more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required for the embodiments. It should be understood that the following drawings only show some embodiments of the present application and should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0034] Figure 1 Shows a schematic structural diagram of a test device for impact-resistant corrosion and wear in some embodiments of the present application;

[0035] Figure 2 Shows a schematic structural diagram of a test tank body in some embodiments of the present application;

[0036] Figure 3 Shows a schematic distribution structure diagram of grinding balls in a test tank body in some embodiments of the present application;

[0037] Figure 4 Shows a schematic assembly structure diagram of a first connecting member and a limit retaining piece in some embodiments of the present application;

[0038] Figure 5 Shows a schematic assembly structure diagram of a second connecting member and a shock-absorbing member in some embodiments of the present application;

[0039] Figure 6 Shows a schematic assembly structure diagram of a test tank body and a corrosion assembly in some embodiments of the present application;

[0040] Figure 7 Shows a schematic assembly structure diagram of a test tank body and a wear assembly in some embodiments of the present application;

[0041] Figure 8 Shows a schematic assembly structure diagram of a test tank body and an impact assembly in some embodiments of the present application.

[0042] Main element symbol description: 100 - Test device for impact-resistant corrosion and wear;

[0043] 110 - Test tank body; 112 - Liquid infusion hole; 111 - Receiving space; 113 - Main tank body; 114 - Overflow tank body; 115 - Liquid storage space; 116 - Partition board; 117 - Multiple sub-receiving spaces;

[0044] 120 - Corrosion assembly; 121 - Discharge piece;

[0045] 130 - Wear component; 131 - Friction part; 132 - First driving part; 1311 - Rolling friction pair; 1312 - Sliding friction pair; 133 - First connecting part; 1331 - Top plate; 1332 - Side plate; 1333 - Fitting space; 134 - Limit retaining piece; 135 - Shock absorber; 136 - Second connecting part; 1361 - Counterweight groove; 1321 - First driver; 1322 - First positioning sleeve; 1323 - First transmission rod; 1362 - Through hole;

[0046] 140 - Impact component; 141 - Impact hammer; 142 - Second driving part; 1421 - Second transmission rod; 1422 - Second driver; 14221 - Cam; 14222 - Return spring; 143 - Second positioning sleeve;

[0047] D1 - First direction; D2 - Second direction; D3 - Third direction; 200 - Specimen. Detailed implementation manners

[0048] The embodiments of the present application will be described in detail below. The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present application and should not be construed as a limitation to the present application.

[0049] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application.

[0050] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality" means two or more unless otherwise specifically defined.

[0051] In this application, unless otherwise clearly specified or limited, terms such as "installed", "connected", "linked", "fixed", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0052] In this application, unless otherwise clearly specified or limited, the first feature being "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature can be that the first feature is directly above or obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0053] Key components in mining machinery, such as crusher liners and shovel teeth, are under the impact and wear of ores and other materials in a corrosive environment for a long time. Under the above harsh working conditions, the components are subjected to both the corrosion of the medium and the impact wear with impact. The corrosion and impact wear promote each other, greatly shortening the service life of the components, affecting the normal production operation of the equipment, and also increasing the maintenance cost.

[0054] The testing equipment in the related art is difficult to simultaneously apply impact load and friction load to the test specimens placed in a corrosive environment, so that the three working conditions of corrosion, impact and wear cannot act on the specimens in a coupled manner, reducing the accuracy and reliability of the performance evaluation of related components.

[0055] In view of the above problems, as Figure 1 shown, an embodiment of this application provides a test device 100 for resisting impact corrosion and wear, which is mainly used to test the performance of parts under the coupling of the three working conditions of corrosion, wear and impact, and improve the accuracy and reliability of the performance evaluation of related components.

[0056] As Figure 1 shown, the test device 100 for resisting impact corrosion and wear includes a test tank body 110, a corrosion component 120, a wear component 130 and an impact component 140.

[0057] Among them, the test tank body 110 has a receiving space 111, and the specimen 200 is disposed in the receiving space 111. The corrosion component 120 includes a discharging member 121, and the discharging member 121 is disposed on the test tank body 110 for injecting a corrosion medium into the receiving space 111 so that the specimen 200 contacts the corrosion medium.

[0058] The specimen 200 is fixedly placed at the bottom of the test tank body 110. Exemplarily, as Figure 1 shown, the size of the bottom of the test tank body 110 is close to the size of the specimen 200 to fix the specimen 200 to be tested at the bottom of the test tank body 110.

[0059] Or a fixing position is formed by a protrusion along the contour of the specimen 200 at the bottom of the test tank body 110; or a fixing position for accommodating the specimen 200 is formed by a depression at the bottom of the test tank body 110; or a clamping member is provided at the bottom of the specimen 200 tank to fix the specimen 200 to be tested at the bottom of the test tank body 110.

[0060] In one embodiment, with reference to Figure 2 , liquid infusion holes 112 are respectively formed on four side walls of the test tank body 110, the discharging member 121 is disposed in the liquid infusion holes 112, and a sealing ring is used for sealing between the discharging member 121 and the hole wall of the liquid infusion holes 112 to prevent leakage of the corrosion medium.

[0061] The corrosion medium can be selected from acidic, neutral, alkaline, artificial seawater or other corrosion media. The contact mode between the corrosion medium and the specimen 200 can be selected as immersion or spraying.

[0062] When the corrosion medium is sprayed onto the specimen 200 by spraying, the discharging member 121 can be selected as a nozzle; when the specimen 200 is immersed in the corrosion medium, the discharging member 121 can be selected as an infusion tube to accelerate the injection of the corrosion medium into the receiving space 111.

[0063] As Figure 2 shown, liquid infusion holes 112 are respectively formed on four side walls of the test tank body 110. In one embodiment, nozzles are installed on two opposite liquid infusion holes 112, and infusion tubes are installed on the remaining two liquid infusion holes 112. The form of the corrosion medium can be selected as liquid immersion or spraying, effectively improving the diversity of corrosion tests and the reliability of experimental data.

[0064] It should be noted that the position of the liquid infusion holes 112 can be changed as required. As Figure 2 shown, for example, the liquid infusion holes 112 are formed at the middle position of each wall surface, and for another example, the liquid infusion holes 112 are formed at the side position of the wall surface.

[0065] The test tank body 110 is made of corrosion-resistant hard plastic (such as polytetrafluoroethylene, polyphenylene sulfide, polyvinylidene fluoride, etc.), and has the advantages of high mechanical strength and corrosion resistance.

[0066] In one embodiment, as Figure 1 shown, the side wall and the bottom wall of the test tank body 110 are arranged as a hollow structure, so that the pipeline of the discharge part 121 can be conveniently accommodated in the interlayer of the side wall. A heating wire or a liquid cooling plate is also arranged in the interlayer of the bottom wall of the sample 200 tank body to adjust the temperature in the accommodation space 111 and make the test results more diverse.

[0067] In one embodiment, as Figure 1 shown, the wear component 130 includes a friction member 131 and a first driving member 132. The friction member 131 is arranged in the accommodation space 111 and contacts the sample 200. The first driving member 132 drives the friction member 131 to move relative to the sample 200. The impact component 140 includes an impact hammer 141 and a second driving member 142. The second driving member 142 drives the impact hammer 141 to intermittently impact the friction member 131, so that the impact pressure is transmitted to the sample 200 through the friction member 131.

[0068] The friction member 131 and the impact hammer 141 are respectively driven by different driving members, so that the wear test and the impact test run synchronously and do not interfere with each other. Also, the impact force of the impact hammer 141 is transmitted to the sample 200 through the friction member 131 to simulate the "wear with impact" received by the component in reality. The sample 200 also contacts with the corrosive medium, realizing the coupling action of the three working conditions of corrosion, impact and wear on the sample 200, maximizing the restoration of the working environment of the component in reality, and improving the accuracy and reliability of the component performance evaluation.

[0069] As Figure 1 shown, the friction member 131 is arranged in the accommodation space 111 and contacts the sample 200. The first driving member 132 drives the friction member 131 to move relative to the sample 200. When the sample 200 is immersed in the corrosive medium, part of the corrosive medium overflows or splashes out of the test tank body 110 along with the movement of the friction member 131, causing waste of the corrosive medium and damaging the surrounding environment.

[0070] To solve the above problems, as Figure 2 shown, the test tank body 110 includes a main tank body 113 and an overflow tank body 114. The accommodation space 111 is arranged in the main tank body 113. The sample 200 and the friction member 131 are both arranged in the main tank body 113. The overflow tank body 114 is used to collect the corrosive medium that overflows or splashes out of the main tank body 113.

[0071] The overflow tank body 114 is arranged at the opening of the main tank body 113. The overflow tank body 114 is connected to the main tank body 113 and defines a liquid storage space 115. The liquid storage space 115 is annular and is arranged around the circumference of the accommodation space 111 to improve the collection efficiency of the corrosive medium.

[0072] In one embodiment, the liquid storage space 115 is formed by a depression around the circumference of the opening of the main tank body 113. The main tank body 113 and the overflow tank body 114 are integrally provided to enhance the sealing performance of the test tank body 110.

[0073] In some embodiments, the friction member 131 includes a rolling friction pair 1311 and a sliding friction pair 1312.

[0074] The specimen 200 is placed at the bottom of the main tank body 113. The rolling friction pair 1311 is disposed within the main tank body 113 and on the side of the specimen 200 away from the main tank body 113. As Figure 1 shown, the rolling friction pair 1311 presses above the specimen 200 and makes rolling contact with the upper surface of the specimen 200. The rolling friction pair 1311 uses grinding balls, grinding rods, polygonal grinding bodies or ore materials.

[0075] The grinding balls or grinding rods are selected from tungsten carbide, silicon nitride, and cast iron materials. The ore materials are selected from iron ore, tungsten ore, copper slag, steel slag, etc., and the sizes can be selected as medium crushing (particle diameter size is 14 - 30 mm) and fine crushing (particle diameter size is 5 - 14 mm).

[0076] To increase the diversity of the test data of the specimen 200 and improve the acquisition efficiency of the test data, a specimen 200 can be partitioned, and multiple partitions can be tested synchronously.

[0077] As Figure 3 shown, in one embodiment, by providing a partition plate 116, the accommodation space 111 of the main tank body 113 is divided into multiple sub - accommodation spaces 117, different rolling friction pairs 1311 are provided in different sub - accommodation spaces 111, and the corrosion environment is changed.

[0078] For example, Figure 3 the accommodation space 111 in [[ ]] is divided into 4 sub - accommodation spaces 111 by the partition plate 116. A circular grinding ball is provided in the upper - left sub - accommodation space 111, and the corrosive medium contacts the specimen 200 by spraying; a polygonal grinding ball is provided in the upper - right sub - accommodation space 111, and the corrosive medium contacts the specimen 200 by spraying; a circular grinding ball is provided in the lower - left sub - accommodation space 111, and the corrosive medium contacts the specimen 200 by spray - immersion; a polygonal grinding ball is provided in the lower - right sub - accommodation space 111, and the corrosive medium contacts the specimen 200 by immersion.

[0079] In this way, data of the specimen 200 under different corrosion conditions and different wear conditions can be collected at one time, the test efficiency can be improved, and the test parameters can be enriched, making the test results more accurate.

[0080] It should be noted that the partition plate 116 is disposed in the receiving space 111, and the top of the partition plate 116 is lower than the top end of the grinding balls. At the same time, the positions of the liquid injection holes 112 in each sub-receiving space 111 are correspondingly adjusted, the number of the liquid injection holes 112 is increased, and nozzles or liquid injection pipes are installed at each liquid injection hole 112 as required. The number of grinding balls in each sub-receiving space 111 can also be adjusted as required.

[0081] The sliding friction pair 1312 is placed on the side of the rolling friction pair 1311 away from the specimen 200 and above the opening of the main trough body 113. The sliding friction pair 1312 is connected to the first driving member 132. The first driving member 132 drives the sliding friction pair 1312 to move, and the sliding friction pair 1312 presses above the rolling friction pair 1311. The sliding friction pair 1312 drives the grinding balls to roll, causing wear on the surface of the specimen 200.

[0082] Referring to Figure 1 and Figure 3 , the sliding friction pair 1312 is in a plate shape, and the size of the sliding friction pair 1312 is close to the size of the opening of the main trough body 113, so that the sliding friction pair 1312 can contact the grinding balls in four sub-receiving spaces 111 at the same time and drive the grinding balls in the four sub-receiving spaces 111 to roll synchronously, improving the efficiency of the wear test.

[0083] The sliding friction pair 1312 is made of cast iron, copper alloy or other wear-resistant composite materials.

[0084] In some embodiments, the wear component 130 further includes a first connecting member 133.

[0085] As Figure 1 shown, the first connecting member 133 is connected to the sliding friction pair 1312 and is disposed above the opening of the overflow trough body 114.

[0086] As Figure 4 shown, the first connecting member 133 includes a top plate 1331 and a side plate 1332. The side plate 1332 is in a ring shape and is connected to the side periphery of the top plate 1331. The top plate 1331 and the side plate 1332 are connected to form a fitting space 1333, and the sliding friction pair 1312 is fitted and fixed in the fitting space 1333. In one embodiment, overlapping holes are further formed in the side plate 1332 and the sliding friction pair 1312. The overlapping holes are threaded holes, and the sliding friction pair 1312 and the first connecting member 133 are fixedly connected by fastening bolts.

[0087] In some embodiments, the wear component 130 further includes a limit retaining piece 134.

[0088] Referring to Figure 1 and Figure 4, the limiting flap 134 is connected to the first connecting member 133 and inserted into the liquid storage space 115. The limiting flap 134 is separated from the groove wall of the overflow tank body 114, so that the limiting flap 134 can move within the liquid storage space 115.

[0089] The moving space of the limiting flap 134 is limited within the liquid storage space 115, enabling the movable connection between the sliding friction pair 1312 and the rolling friction pair 1311. The first connecting member 133 and the test tank body 110 are movably connected through the limiting flap 134. The liquid storage space 115 is used to limit the moving range of the first connecting member 133 and the sliding friction pair 1312, preventing the sliding friction pair 1312 from falling off the rolling friction pair 1311 and also preventing the wear component 130 from separating from the specimen 200 tank body.

[0090] In addition, the limiting flap 134 can also reduce the splashing of the corrosive medium out of the test tank body 110 and gather the corrosive medium in the liquid storage space 115.

[0091] It can be understood that as Figure 1 shown, the instantaneous impact force of the impact hammer 141 directly acts on the sliding friction pair 1312 and is transmitted to the rolling friction pair 1311 and the test through the sliding friction pair 1312. After the impact ends, the reaction force of the impact force will act on the friction pair, affecting the accuracy of the wear test results.

[0092] To address the above problems, with reference to Figure 1 、 Figure 4 and Figure 5 , in some embodiments, the wear component 130 further includes a shock absorber 135 and a second connecting member 136.

[0093] The shock absorber 135 is connected to the side of the first connecting member 133 away from the main tank body 113, and the second connecting member 136 is connected to the side of the shock absorber 135 away from the first connecting member 133.

[0094] In one embodiment, as Figure 5 shown, the number of shock absorbers 135 is 4, which are respectively arranged at the four corners of the top plate 1331 in the first connecting member 133. The shock absorbers 135 connect the first connecting member 133 and the second connecting member 136, making the overall force on the first connecting member 133 and the second connecting member 136 uniform.

[0095] The shock absorber 135 adopts a pneumatic shock absorber or a mechanical shock absorber. The pneumatic shock absorber achieves the damping effect through gas compression and expansion. The mechanical shock absorber relies on a spring or other elastic elements to provide a buffering effect. The spring is fixed on the telescopic sleeve rod, and one end of the telescopic sleeve rod is connected to the first connecting member 133 and the other end is connected to the second connecting member 136.

[0096] Refer to Figure 1, the friction member 131 applies forces to the specimen 200 in two directions. One of the forces is along the first direction D1, and the first direction D1 is the Figure 1 vertical direction in

[0097] . It should be noted that the first direction D1 is the Figure 1 vertical direction in Figure 1 , the second direction D2 is the Figure 1 horizontal direction in

[0098] , and the third direction D3 is the

[0099] front - and - back direction. The first direction D1, the second direction D2, and the third direction D3 are perpendicular to each other in pairs.

[0100] The counterweight is provided on the second connecting member 136, and the counterweight is used to transmit the gravity in the first direction D1 to the friction member 131 through the first connecting member 133. As Figure 5 shown, the second connecting member 136 is plate - shaped, and four counterweight grooves 1361 are correspondingly provided on the second connecting member 136. The counterweight grooves 1361 are used to install the counterweights.

[0101] The counterweight grooves 1361 are symmetrically distributed, and the weights of the counterweights installed in each counterweight groove 1361 are the same, so that the counterweight pressure acts on the friction member 131 along the first direction D1 through the first connecting member 133.

[0102] As Figure 1 shown, in some embodiments, the first driving member 132 includes a first driver 1321, a first positioning sleeve 1322, and a first transmission rod 1323.

[0103] The communication direction of the first positioning sleeve 1322 is perpendicular to the first direction D1, that is, the communication direction of the first positioning sleeve 1322 is the second direction D2 or the third direction D3.

[0104] The first transmission rod 1323 passes through the first positioning sleeve 1322. The first transmission rod 1323 connects the output end of the first driver 1321 and the second connecting member 136. The first driving member 132 drives the first transmission rod 1323 and the wear component 130 to move in a plane perpendicular to the first direction D1.

[0105] In one embodiment, a first driving member 132 is provided. The first positioning sleeve 1322 in the first driving member 132 communicates along the second direction D2. The first driver 1321 drives the wear component 130 to move along the second direction D2.

[0106] In one embodiment, a first driving member 132 is provided. The first positioning sleeve 1322 in the first driving member 132 communicates along the third direction. The first driver 1321 drives the wear component 130 to move along the third direction.

[0107] In one embodiment, two first driving members 132 are provided. The first positioning sleeve 1322 of one of the first driving members 132 communicates along the second direction D2, and the first positioning sleeve 1322 of the other first driving member 132 communicates along the third direction. The two first drivers 1321 jointly drive the wear component 130 to perform a circular motion in a plane perpendicular to the first direction D1.

[0108] Exemplarily, as Figure 1 shown, the first driver 1321 includes a motor and a runner. The motor is a low-power high-precision servo motor with a power of 0.5 - 2 kW. The motor can be internally provided with vibration damping measures (such as rubber vibration isolation pads), and the protection level needs to reach IP65 to prevent lubricating oil or abrasive particles from entering the interior of the motor. The motor drives the runner to rotate. The runner is provided with a hinged rod, and the hinged rod is hinged to the first transmission rod 1323 or the runner.

[0109] Exemplarily, the first driver 1321 is an electric cylinder or a hydraulic cylinder.

[0110] In some embodiments, as Figure 1 and Figure 5 shown, the second connecting member 136 is provided with a through hole 1362. The communication direction of the through hole 1362 is parallel to the first direction D1. The second driving member 142 further includes a second transmission rod 1421 and a second driver 1422. The second transmission rod 1421 is connected to the impact hammer 141. The second driver 1422 drives the second transmission rod 1421 to intermittently rotate in a direction close to the second connecting member 136, so that the impact hammer 141 intermittently passes through the through hole 1362 to impact the friction member 131.

[0111] As Figure 1 shown, the second driver 1422 includes a motor, a cam 14221 and a return spring 14222. The second transmission rod 1421 is a lever. The impact hammer 141 and the cam 14221 are respectively arranged on both sides of the lever fulcrum. The motor drives the cam 14221 to reciprocate within a preset angle range to lift or lower the lever, so as to achieve the purpose of intermittently impacting the friction member 131 by the impact hammer 141.

[0112] The return spring 14222 provides a return force for lifting the impact hammer 141.

[0113] By adjusting the distance between the cam 14221 and the fulcrum or adjusting the rotational speed of the motor, the impact force of the impact hammer 141 is changed.

[0114] The impact hammer 141 is arranged along the first direction D1 and is hinged to the end of the lever, so that the impact hammer 141 is kept placed along the first direction D1. In some embodiments, the impact assembly 140 further includes a second positioning sleeve 143. The second sleeve is fixed to the side of the second connecting member 136 away from the first connecting member 133. The second positioning sleeve 143 is arranged at the through hole 1362 of the second connecting member 136 and communicates along the first direction D1. When the impact hammer 141 falls, the impact hammer 141 passes through the second positioning sleeve 143 and passes through the through hole 1362 to impact the surface of the sliding friction pair 1312.

[0115] In one embodiment, the motor of the second driver 1422 is a 3-5kW high-power and high-overload servo motor. A solid shaft and a high-precision coupling (such as a plum coupling) are selected to avoid positioning deviation caused by shaft deformation. As Figure 1 shown, the motor rotates counterclockwise, the impact hammer 141 falls and impacts, and after the impact, the motor rotates clockwise, and the return spring 14222 drives the impact hammer 141 to rise.

[0116] In some embodiments, the test device further includes a control component (not shown in the figure), and the corrosion component 120 further includes a valve (not shown in the figure). The valve is communicated with the discharge member 121.

[0117] The temperature control component, the valve, the motor in the first driving member 132, and the motor in the second driving member 142 are respectively electrically connected to the control component. By the control component, the operation parameters of the motor in the first driving member 132 and the operation parameters in the second driving member 142 are coordinated and controlled, so that when the impact hammer 141 falls, the impact hammer 141 can pass through the through hole 1362 on the second positioning member and the second connecting member 136.

[0118] For example, the weight of the impact hammer 141 is selected to be 5-10 kg, the impact height of the impact hammer 141 falling is controlled to be 10-100 cm, and the impact frequency is 1-20 times per minute.

[0119] For example, the moving frequency of the second driving member 142 driving the second connecting member 136 along the second direction D2 is selected to be 1-20 Hz, and the moving distance is 1-20 mm.

[0120] The control component controls the valve so that the spraying mode of the discharge member 121 is continuous spraying or intermittent spraying. Or the control component adjusts the flow rate of the corrosion medium injected into the main tank body 113 by the discharge member 121 through the control valve, so that the specimen 200 is partially immersed or fully immersed in the corrosion medium.

[0121] The control component is also capable of controlling the heating or cooling time and the heating or cooling temperature of the heating wire or the liquid cooling plate.

[0122] Referring to Figure 1 、 Figures 6 to 8 In addition, a method for using the impact-resistant corrosion and wear test device 100 provided in this application includes:

[0123] Install the corrosion component 120, the wear component 130, and the impact component 140 in the test tank 110;

[0124] Conduct a test on the specimen 200 under any one of the working conditions of corrosion, wear, and impact;

[0125] Alternatively, conduct a test on the specimen 200 under the coupling of any two of the working conditions of corrosion, wear, and impact;

[0126] Alternatively, conduct a test on the specimen 200 under the coupling of the three working conditions of corrosion, wear, and impact.

[0127] As Figures 6 to 8 shown, Figure 6 is a diagram of the method for using the impact-resistant corrosion and wear test device 100 for conducting a corrosion test alone. When conducting a corrosion test alone, there is no need to install the wear component 130 and the impact component 140 on the tank, and the friction member 131, the first connecting member 133, and the second connecting member 136 can all be removed from the test tank 110.

[0128] Figure 7 is a diagram of the method for using the impact-resistant corrosion and wear test device 100 for conducting a wear test alone. Assemble the wear component 130 to the test tank 110. When no corrosion medium is injected into the test tank 110, conduct a wear test alone; when a corrosion medium is injected into the test tank 110, couple the wear and corrosion working conditions to act on the specimen 200.

[0129] Figure 8 is a diagram of the method for using the impact-resistant corrosion and wear test device 100 for conducting an impact test alone. Install both the wear component 130 and the impact component 140 on the specimen 200 tank. When no corrosion medium is injected into the test tank 110 and the first driving member 132 is not started, conduct an impact test alone; when a corrosion medium is injected into the test tank 110 and the first driving member 132 is not started, couple the impact and corrosion working conditions to act on the specimen 200; when no corrosion medium is injected into the test tank 110 and the first driving member 132 is started, couple the impact and wear working conditions to act on the specimen 200; when a corrosion medium is injected into the test tank 110 and the first driving member 132 is started, couple the wear, impact, and corrosion working conditions to act on the specimen 200.

[0130] After the test is completed, the specimen 200 is ultrasonically cleaned, the wear volume is calculated by a white light interferometer, the wear rate = (G before wear - G after wear) / G before wear, and the wear surface and products are analyzed by means of electron microscopy, XRD, etc., and the impact wear service performance of the specimen 200 in a corrosive environment is comprehensively evaluated.

[0131] The impact corrosion wear test device 100 can quickly evaluate the service performance of the specimen 200 under at least one of the working conditions of corrosion, impact and wear. In particular, it can quickly evaluate the service performance of the specimen 200 under the three working conditions of coupled corrosion, impact and wear. The operation process is simple, the working conditions are close to the actual situation, and the data results are reliable.

[0132] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0133] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present application. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present application.

Claims

1. The test device for impact corrosion wear resistance, characterized in that, Comprising: A test tank body having a receiving space, and a specimen is disposed within the receiving space; A corrosion component including a discharge member disposed on the test tank body for injecting a corrosive medium into the receiving space to bring the specimen into contact with the corrosive medium; An abrasion component including a friction member and a first driving member, the friction member is disposed within the receiving space and contacts the specimen, and the first driving member drives the friction member to move relative to the specimen; An impact component including an impact hammer and a second driving member, the second driving member drives the impact hammer to intermittently impact the friction member so that the impact pressure is transmitted to the specimen through the friction member.

2. The impact-resistant corrosion and wear test device according to claim 1, wherein The test tank body includes: A main tank body, and the receiving space is disposed within the main tank body; An overflow tank body disposed at the opening of the main tank body, the overflow tank body is connected to the main tank body and defines a liquid storage space which is annular and disposed around the circumference of the receiving space.

3. The test device for impact corrosion and wear resistance according to claim 2, characterized in that, The friction member includes: A rolling friction pair, the specimen is placed on the bottom of the main tank body, and the rolling friction pair is disposed within the main tank body and on the side of the specimen away from the main tank body; A sliding friction pair disposed on the side of the rolling friction pair away from the specimen and above the opening of the main tank body.

4. The impact-resistant corrosion and wear test device according to claim 3, characterized in that, The abrasion component further includes: A first connecting member connected to the sliding friction pair and disposed above the opening of the overflow tank body; A limiting flap connected to the first connecting member and inserted into the liquid storage space.

5. The impact-resistant corrosion and wear test device according to claim 4, characterized in that, The abrasion component further includes: A shock absorber connected to the side of the first connecting member away from the main tank body; A second connecting member connected to the side of the shock absorber away from the first connecting member.

6. The impact-resistant corrosion and wear test device according to claim 5, characterized in that, The abrasion component further includes a counterweight disposed on the second connecting member, and the counterweight is used to transmit gravity to the friction member through the first connecting member.

7. The impact-resistant corrosion and wear test device according to claim 5, characterized in that, The first driving member includes a first driver, a first positioning sleeve and a first transmission rod, the communication direction of the first positioning sleeve is perpendicular to the first direction, the first transmission rod passes through the first positioning sleeve, the first transmission rod connects the output end of the first driver and the second connecting member, and the first driving member drives the first transmission rod and the abrasion component to move in a plane perpendicular to the first direction.

8. The impact-resistant corrosion and wear test device according to claim 7, characterized in that, A through hole is provided on the second connecting member, the communication direction of the through hole is parallel to the first direction, the second driving member includes a second transmission rod and a second driver, the second transmission rod connects the impact hammer, and the second driver drives the second transmission rod to intermittently rotate towards the direction close to the second connecting member so that the impact hammer intermittently passes through the through hole to impact the friction member.

9. The impact-resistant corrosion and wear test device according to any one of claims 1 to 6, characterized in that, The test device further includes a control component, the corrosion component further includes a valve, the valve is communicated with the discharge member, and the valve, the first driving member and the second driving member are respectively electrically connected to the control component.

10. A method for using the impact-resistant corrosion and wear test device according to any one of claims 1 to 9, characterized in that, Comprising: Installing the corrosion component, the abrasion component and the impact component on the test tank body; Conduct tests on the specimen under any one of the working conditions of corrosion, wear, and impact; Alternatively, conduct tests on the specimen under the coupling of any two of the working conditions of corrosion, wear, and impact; Alternatively, conduct tests on the specimen under the coupling of the three working conditions of corrosion, wear, and impact.

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