Damage test device for track pattern block and test method thereof

Abstract

The invention provides a damage test device of a track pattern block and a test method thereof, and relates to the technical field of mechanical test equipment.The damage test device comprises a track fixing assembly and an oil cylinder which are arranged on the surface of a workbench in parallel, a clamp assembly is further arranged at the top of the track fixing assembly, and the pushing end of the oil cylinder abuts against the clamp assembly; a pressure sensor is arranged on one side of the pushing end of the oil cylinder and is in signal connection with the data processing system; the crawler belt fixing assembly comprises a placement plate and a pressing plate which are stacked, the clamp assembly comprises a first clamping plate and a second clamping plate which are used for clamping the two sides of a pattern block protruding out of the pressing plate, clamp knurling is arranged on the opposite sides, the two ends and a distance adjusting clamping plate are connected to a sliding shaft in a sleeving mode, and locking bolts are arranged at the two ends of the sliding shaft; the technical problems that in the prior art, a complex working environment cannot be simulated, and the damage mechanism and durability of the pattern block cannot be obtained are solved, and the technical effects of dynamic loading, friction and damage testing of the track pattern block are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of mechanical test equipment, and more particularly to a failure test device for a crawler tread block and a test method thereof. Background Art

[0002] Crawlers have been widely used in many fields such as construction machinery, agricultural machinery, and military vehicles due to their excellent grip and load-bearing capacity. Especially when operating under complex terrain conditions, the crawler can ensure the stable driving of the vehicle, demonstrating advantages that are difficult to match by other walking devices.

[0003] However, the environment faced by crawlers during actual use is relatively poor, and the wear and damage problems of the tread blocks on the crawler are particularly prominent. As the key components in direct contact with the ground, the performance of the tread blocks directly determines the overall performance and service life of the crawler. In harsh working environments, such as rough mountains, muddy farmlands, and construction sites covered with sharp stones, the tread blocks on the crawler not only have to bear huge pressure and friction, but also may be subjected to frequent impacts. These complex working conditions can cause various forms of damage to the tread blocks, such as wear, tearing, and deformation, resulting in a decrease in the grip of the crawler, a deterioration in driving stability, and even safety accidents in severe cases. At the same time, it also greatly increases the equipment maintenance cost and downtime.

[0004] The deficiencies of existing crawler failure test equipment in the failure test of tread blocks are as follows: 1) Most equipment cannot accurately simulate the various forces and working conditions that the tread blocks withstand in complex working environments. For example, in actual work, the forces acting on the tread blocks are not in a single direction and of constant magnitude, but change dynamically with the terrain and load. However, existing equipment is difficult to achieve such dynamic loading and simulation of complex working conditions.

[0005] 2) The test results obtained by existing test equipment are relatively limited, and the failure mechanism and durability of the tread blocks cannot be obtained, making it difficult to meet the actual application requirements. Summary of the Invention

[0006] The purpose of the present invention is to provide a failure test device for a crawler tread block and a test method thereof, so as to alleviate the technical problems existing in the prior art that the crawler failure test equipment cannot simulate complex working environments and cannot obtain the failure mechanism and durability of the tread blocks.

[0007] A failure test device for a crawler tread block provided by the present invention includes: a workbench, a crawler fixing assembly, a fixture assembly, an oil cylinder, a pressure sensor, and a data processing system; The surface of the workbench is provided with a crawler fixing component and an oil cylinder side by side. A fixture component is also arranged on the top of the crawler fixing component. The pushing end of the oil cylinder abuts against the fixture component. A pressure sensor is arranged on one side of the pushing end of the oil cylinder, and the pressure sensor is signal-connected to the data processing system; The crawler fixing component includes a stacked placing plate and a pressing plate. The surface of the pressing plate is in an open shape for clamping the protruding tread blocks; The fixture component includes a spacing-adjusting clamping plate, a first clamping plate, a second clamping plate, a fixture embossing, and a cushion block; the first clamping plate and the second clamping plate clamp both sides of the tread block protruding from the pressing plate. Fixture embossings are arranged on the opposite sides of the first clamping plate and the second clamping plate, and the fixture embossings are in contact with the surface of the tread block. The two ends of the first clamping plate and the second clamping plate are respectively sleeved on a sliding shaft with a spacing-adjusting clamping plate, and locking bolts are arranged at both ends of the sliding shaft; a cushion block is arranged on the side of the first clamping plate or the second clamping plate facing away from the fixture embossing, and the cushion block abuts against the pushing end of the oil cylinder.

[0008] Further, it further includes a support component. The support component includes a baffle plate, a support block, and a cylinder body fixing plate; the baffle plate is in an L shape. One end of the baffle plate is fixedly connected to the surface of the workbench, and the other end of the baffle plate abuts against the side of the placing plate. The support block is placed at the bottom of the placing plate; the cylinder body of the oil cylinder is fixed to the surface of the workbench through the cylinder body fixing plate.

[0009] Further, a plurality of sliding holes are opened on the surface of the placing plate around the pressing plate, and a toad clamp is arranged in each sliding hole, and the jaws of the toad clamp abut against the pressing plate.

[0010] Further, the surface of the placing plate is provided with anti-slip patterns, and the anti-slip patterns are distributed in a grid shape for increasing the friction between the crawler and the placing plate.

[0011] Further, a number of concentric holes are opened on the surfaces of the placing plate and the workbench, and the concentric holes are connected with eye bolts.

[0012] Further, the adjustable spacing value of the spacing-adjusting clamping plate is 20 mm to 30 mm.

[0013] Further, a distance sensor is arranged on one side of the workbench surface close to the oil cylinder. The distance sensor is a laser distance sensor for detecting the baffle on the oil cylinder and controlling the retraction stroke of the oil cylinder.

[0014] Further, the oil cylinder pipeline is connected to an oil pressure station, and the oil pressure station is signal-connected to the data processing system.

[0015] Further, a bracket is arranged at the bottom of the workbench, and an adjusting foot pad is arranged at the bottom of the bracket.

[0016] A method for a failure test of a crawler tread block provided by the present invention includes the following steps: Step 1: Place the test crawler belt steadily on the workbench and fix it through the crawler belt fixing component; select the fixture for embossing corresponding to the crawler belt tread block, and use the first clamping plate and the second clamping plate to clamp the tread block to ensure firm connection; Step 2: Start and gradually increase the pressure, and use the oil cylinder for gentle telescopic testing; Step 3: Set the time through the data processing system; as the oil cylinder retracts and extends back and forth, the tread block bears repeated pushing and pulling forces, simulating the actual working conditions, and the data processing system records from the start until the tread block cracks, breaks or deforms; Step 4: The pressure sensor collects the force change data during each push and pull process, transmits it to the data processing system to generate a push-pull force curve, and analyzes the durability and failure mechanism of the tread block according to the push-pull force curve to complete the failure test of the crawler belt tread block.

[0017] Beneficial effects: A device for the failure test of a crawler belt tread block provided by the present invention. It includes: a crawler belt fixing component and an oil cylinder are arranged side by side on the surface of the workbench, a fixture component is also arranged on the top of the crawler belt fixing component, the pushing end of the oil cylinder abuts against the fixture component, a pressure sensor is arranged on one side of the pushing end of the oil cylinder, and the pressure sensor is signal-connected to the data processing system; By setting the oil cylinder to apply force to the fixture component, various forces received by the tread block during actual work are simulated. The pushing end of the oil cylinder abuts against the fixture component, and together with the spacing adjustment clamping plates with adjustable spacing, the acting force on the tread block can be flexibly adjusted, simulating the dynamic forces received by the tread block under different terrains and load changes. Compared with existing equipment, it can more truly restore the complex working environment and provide more actual conditions for testing.

[0018] By setting the pressure sensor to be signal-connected to the data processing system, the force change data during each push and pull process can be collected in real time. The data analyzed by the processing system can obtain the performance changes of the tread block in different force application stages, which helps to deeply study the failure mechanism of the tread block. At the same time, by continuously monitoring the force change, the durability of the tread block can also be evaluated, making up for the deficiencies of the limited test results of existing test equipment and providing rich and accurate data support for optimizing the design of the tread block.

[0019] By setting the fixture component, it can be flexibly adjusted according to different specifications of the tread block. The first clamping plate and the second clamping plate cooperate with the fixture for embossing, and can better fit the tread blocks of different shapes and sizes, enhancing the clamping effect, making the device applicable to the failure tests of various types of crawler belt tread blocks, and improving the versatility and practicality of the device.

[0020] The crawler tread block failure test machine device of the present invention can simulate the stress and wear conditions in the real working environment, and is suitable for testing the failure characteristics of the tread block under different loads; the data obtained through the present invention can be used to optimize the crawler design and improve the product quality and service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0022] Figure 1 It is a schematic structural diagram of the failure test device for the crawler tread block provided by the embodiment of the present invention; Figure 2 It is a schematic structural diagram of the fixture assembly in the failure test device for the crawler tread block provided by the embodiment of the present invention; Figure 3 It is a top view of the fixture assembly in the failure test device for the crawler tread block provided by the embodiment of the present invention; Figure 4 It is a schematic structural diagram of the fixture assembly in the failure test device for the crawler tread block provided by the embodiment of the present invention; Figure 5 It is a schematic connection diagram of the pressure sensor and the data processing system in the failure test device for the crawler tread block provided by the embodiment of the present invention; Figure 6 It is a schematic structural diagram of the failure test device for the double-sided crawler tread block provided by the embodiment of the present invention; Figure 7 It is a flowchart of the failure test method for the double-sided crawler tread block provided by the embodiment of the present invention.

[0023] Reference numerals: 1 - workbench; 101 - support; 102 - adjusting foot pad; 2 - crawler fixing assembly; 201 - placing plate; 202 - pressing plate; 203 - toad clamp; 204 - eyebolt; 3 - fixture assembly; 301 - spacing adjusting splint; 302 - first splint; 303 - second splint; 304 - fixture embossing; 305 - spacer block; 306 - sliding shaft; 4 - oil cylinder; 5 - pressure sensor; 6 - data processing system; 7 - support assembly; 701 - baffle; 702 - support block; 703 - cylinder body fixing plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Components of the embodiments of the present invention generally described and illustrated in the drawings here can be arranged and designed in a variety of different configurations.

[0025] Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed present invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0026] It should be noted that like reference numerals and letters denote like items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0027] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the invention is customarily placed during use. It is only for the convenience of describing the present invention 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 cannot be construed as a limitation of the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive distinction and cannot be understood as indicating or implying relative importance.

[0028] In addition, terms such as "horizontal", "vertical", "overhanging", etc. do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0029] In the description of the present invention, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "installed", "connected", "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; 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 elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific cases.

[0030] The following will describe in detail some embodiments of the present invention with reference to the accompanying drawings. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0031] As Figure 1 , Figure 2 shown, the present invention provides a failure test device for a crawler tread block, including: a workbench 1, a crawler fixing assembly 2, a fixture assembly 3, an oil cylinder 4, a pressure sensor 5, and a data processing system 6; The crawler fixing assembly 2 and the oil cylinder 4 are arranged side by side on the surface of the workbench 1. A fixture assembly 3 is further arranged on the top of the crawler fixing assembly 2. The pushing end of the oil cylinder 4 abuts against the fixture assembly 3. A pressure sensor 5 is arranged on one side of the pushing end of the oil cylinder 4. The pressure sensor 5 is in signal connection with the data processing system 6; The crawler fixing assembly 2 includes a placement plate 201 and a pressing plate 202 connected by bolts. The surface of the pressing plate 202 is in an open shape and is used for clamping the protruding tread block; The fixture assembly 3 includes a spacing adjustment clamping plate 301, a first clamping plate 302, a second clamping plate 303, a fixture embossing 304, and a spacer block 305; the first clamping plate 302 and the second clamping plate 303 clamp the two sides of the tread block protruding from the pressing plate 202. Fixture embossings 304 are arranged on the opposite sides of the first clamping plate 302 and the second clamping plate 303. The fixture embossings 304 are in contact with the surface of the tread block. The two ends of the first clamping plate 302 and the second clamping plate 303 are respectively sleeved on a sliding shaft 306 with a spacing adjustment clamping plate 301, and locking bolts are arranged at both ends of the sliding shaft 306; a spacer block 305 is arranged on the side of the first clamping plate 302 or the second clamping plate 303 facing away from the fixture embossing 304, and the spacer block 305 abuts against the pushing end of the oil cylinder 4.

[0032] Specifically, the workbench 1 serves as the basic support structure of the entire device, and the crawler fixing assembly 2 and the oil cylinder 4 are arranged side by side on its surface. The workbench 1 provides a stable installation platform to ensure that each component remains relatively fixed in position during the test and reduce the interference caused by shaking or displacement to the test results. The crawler fixing assembly 2 is composed of a placement plate 201 and a pressing plate 202 connected by bolts. The placement plate 201 plays a role in carrying the crawler, and the surface of the pressing plate 202 is in an open shape identical to the shape of the tread block, which can initially fix the protruding tread block.

[0033] As Figure 3As shown, in the fixture assembly 3, the first clamping plate 302 and the second clamping plate 303 clamp from both sides of the pattern block protruding from the pressing plate 202. The fixture embossing 304 (a kind of embossing in the attached drawing) provided on the side where the two face each other contacts the surface of the pattern block, increasing the friction force. While selecting the corresponding fixture embossing 304 according to different pattern blocks, the fixing effect on the pattern block is further enhanced, preventing relative sliding between the pattern block and the fixture assembly 3 during the test and affecting the accuracy of the test data. Both ends of the first clamping plate 302 and the second clamping plate 303 are respectively sleeved with a spacing adjustment clamping plate 301 on the sliding shaft 306, and locking bolts are provided at both ends of the sliding shaft 306. By adjusting the position of the spacing adjustment clamping plate 301 on the sliding shaft 306, the spacing between the first clamping plate 302 and the second clamping plate 303 can be flexibly changed to adapt to pattern blocks of different sizes and specifications, improving the versatility of the device. The cushion block 305 is arranged on the side of the first clamping plate 302 or the second clamping plate 303 facing away from the fixture embossing 304 and abuts against the pushing end of the oil cylinder 4. While transmitting the thrust of the oil cylinder 4, it plays a buffering and protecting role, avoiding damage to the clamping plate and the pattern block caused by excessive impact force.

[0034] The pushing end of the oil cylinder 4 abuts against the fixture assembly 3, which is a key component for providing simulated force on the pattern block. By telescoping back and forth, a pushing and pulling force is applied to the fixture assembly 3, thereby simulating the force borne by the pattern block during actual operation. The stable operation of the oil cylinder 4 and the accurate control of the reliability of the test results. The pressure sensor 5 is installed on one side of the pushing end of the oil cylinder 4 and is signal-connected to the data processing system 6. It can collect the minute changes in force during each push and pull process in real time and transmit these data to the data processing system 6. The high sensitivity and fast response characteristics of the pressure sensor 5 ensure that the collected data can accurately reflect the situation of the pattern block at different stress stages. The data processing system 6 receives the data transmitted by the pressure sensor 5 and stores, analyzes, and processes it. It can configure the experimental duration and oil pressure parameters according to different pattern specifications and control the operation of the entire test process. By generating a pushing and pulling force curve, it helps researchers intuitively analyze the durability and failure mechanism of the pattern block and provides strong data support for optimizing the track design.

[0035] It should be noted that the data processing system 6 sets the parameters of the oil pressure station according to the experimental requirements, the oil cylinder 4 operates at a given speed, and the pressure sensor 5 collects the failure data of the pattern block in real time and transmits it to the data processing system 6.

[0036] It should be noted that, as Figure 6 shown, in the actual application process, the surface of the workbench 1 of the present invention can be symmetrically arranged, that is, there are two track fixing components 2, fixture assemblies 3, oil cylinders 4, and pressure sensors, sharing the same data processing system 6; enabling the test device to simultaneously conduct destructive tests on a kind of track pattern block from both sides using two oil cylinders 4.

[0037] The present invention applies dynamic push-pull force to the clamp assembly 3 through the oil cylinder 4, simulating the various forces that the crawler pattern block bears in a complex working environment. Combined with the adjustable clamp assembly 3, it can adapt to the stress conditions of the pattern block under different working conditions. Compared with traditional testing equipment, it can more realistically restore the actual working state of the pattern block, making the test results more valuable for reference. The cooperation between the pressure sensor 5 and the data processing system 6 realizes the comprehensive collection and analysis of the force change data during the test. The push-pull force curve generated by the data processing system 6 can clearly show the stress changes of the pattern block at different stages, helping researchers to deeply understand the destruction process and mechanism of the pattern block, thereby providing a scientific basis for improving the performance and life of the crawler. The crawler fixing assembly 2 and the clamp assembly 3 in the device are flexibly designed and can adapt to crawler pattern blocks of different sizes and specifications. By adjusting the spacing adjustment clamp 301 and replacing the corresponding clamp components of the clamp assembly 3, various types of pattern blocks are tested to meet different needs.

[0038] In an embodiment of the present invention, Figure 3 , Figure 4 As shown, the destructive test device for the crawler pattern block further includes a support assembly 7, and the support assembly 7 includes a baffle 701, a support block 702 and a cylinder fixing plate 703; The baffle 701 is L-shaped, one end of the baffle 701 is fixed to the surface of the workbench 1, and the other end of the baffle 701 is abutted against the side of the placement plate 201. A support block 702 is placed at the bottom of the placement plate 201; the cylinder body of the oil cylinder 4 is fixed to the surface of the workbench 1 through a cylinder body fixing plate 703.

[0039] Specifically, Figure 4 As shown, the baffle 701 is L-shaped, with one end firmly fixed to the surface of the workbench 1 and the other end tightly abutting against the side of the placement plate 201. The L-shape can form a stable support and limit structure, which provides lateral support and limit for the placement plate 201, effectively preventing the placement plate 201 from lateral displacement or shaking during the test, ensuring the position stability of the crawler and the pattern block placed thereon, and further ensuring the accuracy of the direction and magnitude of the force applied to the pattern block during the test, avoiding deviation of the test data due to the displacement of the placement plate 201.

[0040] The support block 702 is placed at the bottom of the placement plate 201 and is in the shape of a block or a long strip. The support block 702 mainly supports the placement plate 201 and distributes the weight of the placement plate 201, the crawler, the pattern block, etc. When the height of the pattern block changes, the placement plate 201 is raised or lowered as a whole by adjusting the support block 702, so that the center of the pattern block is always fixed at the center of the oil cylinder 4.

[0041] The cylinder block fixing plate 703 is used to fix the cylinder block of the oil cylinder 4 on the surface of the workbench 1. Generally, it has an installation structure adapted to the cylinder block of the oil cylinder 4 and the workbench 1, including bolt holes and clamping grooves, and the oil cylinder 4 is fixed on the workbench 1 by bolt connection or other fastening methods. This ensures the stability of the oil cylinder 4 during the working process and avoids the shaking or displacement of the oil cylinder 4 during the telescopic process. Only when the oil cylinder 4 is stably fixed can a predetermined pushing and pulling force be applied to the fixture assembly 3 to ensure that the force applied to the tread block during the test is stable and accurate, thereby improving the reliability and accuracy of the test results.

[0042] In an embodiment of the present invention, a plurality of sliding holes are formed around the pressing plate 202 on the surface of the placing plate 201, and a frog clamp 203 is arranged in each sliding hole, and the jaws of the frog clamp 203 are abutted against the pressing plate 202.

[0043] The surface of the placing plate 201 is provided with anti-slip lines, and the anti-slip lines are distributed in a grid shape for increasing the friction between the crawler belt and the placing plate 201.

[0044] A plurality of concentric holes are formed on the surfaces of the placing plate 201 and the workbench 1, and the concentric holes are connected with eye bolts 204.

[0045] Specifically, a plurality of sliding holes are formed around the pressing plate 202 on the surface of the placing plate 201. The sliding holes are arranged in pairs (eight in the attached drawing). A frog clamp 203 is arranged in each sliding hole, and the jaws of the frog clamp 203 are abutted against the pressing plate 202. The sliding holes provide a sliding track for the frog clamp 203, enabling it to move flexibly in the sliding holes. The unique shape and adjustability of the frog clamp 203 enable it to be adjusted according to the actual size and shape of the crawler belt. In actual use, by moving the frog clamp 203 and making its jaws closely abut against the pressing plate 202, the crawler belt can be further fixed, making up for the deficiency of the single fixation of the pressing plate 202, applying pressure to the crawler belt from multiple directions, and effectively preventing the crawler belt from displacing, shaking or loosening during the test. Even when the oil cylinder 4 applies a dynamic pushing and pulling force to the tread block, the crawler belt can remain stable, ensuring the accuracy of the test data.

[0046] The surface of the placing plate 201 is provided with anti-slip lines distributed in a grid shape. The grid structure of the anti-slip lines increases the roughness of the surface of the placing plate 201. When the crawler belt is placed on the placing plate 201, more friction is generated between this rough surface and the crawler belt. Further enhancing the adhesion between the crawler belt and the placing plate 201, preventing the crawler belt from sliding relative to the placing plate 201. During the test, whether in static placement or under the action of external forces, the anti-slip lines can ensure that the crawler belt always remains in a predetermined position, providing a guarantee for accurately simulating the force-bearing situation of the tread block in actual work and helping to improve the accuracy of the test results.

[0047] In an embodiment of the present invention, the adjustable spacing value of the spacing adjustment clamping plate 301 is 20 mm to 30 mm.

[0048] A distance sensor is provided on one side of the surface of the workbench 1 close to the oil cylinder 4. The distance sensor is a laser distance sensor and is used to detect the baffle on the oil cylinder 4 to control the retraction stroke of the oil cylinder 4.

[0049] The pipeline of the oil cylinder 4 is connected to an oil pressure station, and the oil pressure station is signal-connected to the data processing system 6.

[0050] A bracket 101 is provided at the bottom of the workbench 1, and an adjusting foot pad 102 is provided at the bottom of the bracket 101.

[0051] Specifically, for the spacing adjustment clamping plate 301, that is, to change the spacing between the first clamping plate 302 and the second clamping plate 303, the oil cylinder 4 is extended and retracted back and forth during the experiment, so that the tread block gradually bears the repeated pushing and pulling forces, usually in tens of thousands or even more pushing and pulling cycle times; in actual tests, there are differences in the sizes of different types of crawler tread blocks. By adjusting the spacing adjustment clamping plate 301, the first clamping plate 302 and the second clamping plate 303 can tightly clamp tread blocks of different sizes. At the same time, the movement of the second clamping plate 303 formed by the push of the oil cylinder 4 is limited between 20 mm and 30 mm.

[0052] The laser distance sensor is installed on one side of the surface of the workbench 1 close to the oil cylinder 4, and a baffle is provided on the oil cylinder 4. The laser distance sensor measures the distance by emitting a laser beam and receiving the reflected light. Together with the set spacing of the spacing adjustment clamping plate 301, it accurately controls the retraction stroke of the oil cylinder 4. During the process of the oil cylinder 4 extending and retracting back and forth to simulate the force on the tread block, once the laser distance sensor detects the baffle on the oil cylinder 4, it immediately sends a signal to stop the movement of the oil cylinder 4, preventing the oil cylinder 4 from exceeding the stroke when retracting. It protects the oil cylinder 4 itself from being damaged due to excessive retraction, and also ensures the stability and safety of the entire test process, avoiding test interruption or inaccurate data caused by the oil cylinder 4.

[0053] The oil cylinder 4 is connected to the oil pressure station through pipelines, and the oil pressure station is signal-connected to the data processing system 6. The oil pressure station includes an oil pump, an oil tank, and various valves, and conveys hydraulic oil to the oil cylinder 4 through pipelines to drive the piston of the oil cylinder to move. The data processing system 6 is connected to the oil pressure station through a signal transmission line to achieve control and data interaction of the oil pressure station, and achieve precise control of the oil cylinder 4. The data processing system 6 sets the parameters of the oil pressure station according to the experimental requirements, and the oil pressure station adjusts the output oil pressure and flow rate according to these instructions, so that the oil cylinder 4 expands and contracts back and forth at an appropriate rate and pressure to simulate complex working conditions in actual use. For example, under different load conditions, the oil pressure station can accurately adjust the output force of the oil cylinder 4, providing a reliable loading method for studying the failure characteristics of the tread blocks under different forces. At the same time, the coordinated work of the oil pressure station and the data processing system 6 facilitates real-time monitoring and adjustment of the experimental process, ensuring the accuracy and effectiveness of the test data.

[0054] The bracket 101 supports the workbench 1, so that there is a certain space at the bottom of the device, which is convenient for arranging pipelines, wires, etc. At the same time, it improves the stability of the device and disperses the weight of the workbench 1 and the components above. On the other hand, the adjusting feet 102 can be used to adjust the level of the workbench 1 to make the workbench 1 in a horizontal state, ensuring that the direction of the force exerted by the oil cylinder 4 on the tread block is accurate, avoiding deviation of the test results caused by the inclination of the workbench, and ensuring the reliability and repeatability of the test data.

[0055] The present invention also provides a method for testing the failure of a crawler tread block, as Figure 5 、 Figure 7 shown, including the following steps: Step 1: Place the test crawler steadily on the workbench 1 and fix it through the crawler fixing component 2; select the fixture embossing 304 corresponding to the crawler tread block, and clamp the tread block with the first clamping plate 302 and the second clamping plate 303 to ensure firm connection; Specifically, place the crawler to be tested steadily on the workbench 1 to ensure that the crawler is parallel to the tabletop. Use high-strength bolts and nuts to fix both sides of the crawler through the crawler fixing component 2, and fix the crawler at the front end of the oil cylinder 4. Adjust the fixture assembly 3 to align the tread block with the oil cylinder 4 to ensure that the tread block does not slip or misalign during the entire experiment, thereby ensuring the accuracy and reliability of the experimental data.

[0056] Step 2: Start and gradually increase the pressure, and use the oil cylinder 4 to perform gentle telescopic tests; Specifically, turn on the power supply of the oil pressure station, and gradually increase the oil pressure at a slow and uniform rate, closely observing the operating state of the oil cylinder 4. First, conduct a gentle telescopic test. During this process, comprehensively check the working conditions of the oil pressure station, the oil cylinder, and the fixing device to ensure there are no abnormal noises, vibrations, or other malfunction phenomena. Subsequently, according to the requirements of the experimental design, accurately set the parameters of the oil pressure station in the data processing system, enabling the oil cylinder 4 to perform reciprocating telescopic movements at the set rate and pressure, highly simulating the force-bearing working conditions of the crawler tread blocks during actual use.

[0057] Step 3: Set the time through the data processing system 6; as the oil cylinder 4 reciprocates telescopically, the tread block bears repeated pushing and pulling forces, simulating the actual working conditions. The data processing system 6 records the time from the start until the tread block shows cracks, fractures, or deformations. Specifically, in the data processing system 6, reasonably set the duration of this experiment according to the experimental purpose and design requirements. As the oil cylinder 4 continuously performs reciprocating telescopic movements, the tread block will continuously bear repeated pushing and pulling forces. During the experiment, continuously record the entire process from the start of the experiment until the tread block shows obvious signs of damage (such as cracks, fractures, or deformations). Usually, the number of push-pull cycles required for the experiment is determined according to the design, reaching tens of thousands of times or more to fully simulate the wear and fatigue conditions in actual use.

[0058] Step 4: The pressure sensor 5 collects the force change data during each push and pull process, transmits it to the data processing system 6 to generate a push-pull force curve, and analyzes the durability and failure mechanism of the tread block based on the push-pull force curve to complete the failure test of the crawler tread block.

[0059] Specifically, use the pressure sensor 5 to capture the minute changes in the force acting on the tread block during each push and pull of the oil cylinder 4, and transmit the collected data to the data processing system 6 for storage in real time through the data transmission line to ensure the integrity and accuracy of the data. The data processing system 6 deeply analyzes the collected and stored data to generate a curve of the push-pull force changing with time or the number of cycles. Through the research and analysis of this curve, the durability and failure mechanism of the tread block can be deeply understood. It provides a strong basis for optimizing the crawler design, helps improve the quality of the crawler product, extends its service life, and enhances the performance of the product in actual applications.

[0060] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A destructive test device for a crawler tread block, characterized in that: include: A workbench (1), a track fixing assembly (2), a clamp assembly (3), an oil cylinder (4), a pressure sensor (5) and a data processing system (6); The surface of the workbench (1) is provided with the track fixing assembly (2) and the oil cylinder (4) in parallel, the top of the track fixing assembly (2) is also provided with the clamp assembly (3), the pushing end of the oil cylinder (4) abuts against the clamp assembly (3), and the pressure sensor (5) is provided on one side of the pushing end of the oil cylinder (4), and the pressure sensor (5) is connected to the data processing system (6) for signal transmission; The crawler track fixing assembly (2) comprises a stacked placement plate (201) and a pressure plate (202); the surface of the pressure plate (202) is open and is used to clamp the protruding tread blocks; The clamp assembly (3) comprises a spacing adjustment clamp (301), a first clamp (302), a second clamp (303), a clamp embossing (304) and a cushion block (305); the first clamp (302) and the second clamp (303) clamp two sides of a tread block protruding from the pressure plate (202); the first clamp (302) and the second clamp (303) are provided with the clamp embossing (304) on opposite sides; the clamp embossing (304) ) is in contact with the surface of the pattern block, the two ends of the first clamping plate (302) and the second clamping plate (303) are respectively sleeved on the sliding shaft (306) with a spacing adjustment clamping plate (301), and locking bolts are arranged at both ends of the sliding shaft (306); the cushion block (305) is arranged on the side of the first clamping plate (302) or the second clamping plate (303) facing away from the clamp embossing (304), and the cushion block (305) is in contact with the pushing end of the oil cylinder (4).

2. The destructive test device for crawler tread blocks according to claim 1, characterized in that: It also includes a support assembly (7), wherein the support assembly (7) includes a baffle (701), a support block (702) and a cylinder fixing plate (703); The baffle (701) is L-shaped, one end of the baffle (701) is fixedly connected to the surface of the workbench (1), the other end of the baffle (701) is abutted against the side of the placement plate (201), and the support block (702) is placed at the bottom of the placement plate (201); the cylinder body of the oil cylinder (4) is fixed to the surface of the workbench (1) via the cylinder body fixing plate (703).

3. The destructive test device for crawler tread blocks according to claim 1, characterized in that: A plurality of sliding holes are provided on the surface of the placement plate (201) around the pressing plate (202), and a toad clamp (203) is arranged in each of the sliding holes, and the jaws of the toad clamp (203) are against the pressing plate (202).

4. The destructive test device for crawler tread blocks according to claim 3, characterized in that: The surface of the placement plate (201) is provided with anti-skid patterns, and the anti-skid patterns are distributed in a grid pattern, and are used to increase the friction between the track and the placement plate (201).

5. The destructive test device for crawler tread blocks according to claim 3, characterized in that: A plurality of concentric holes are provided on the surfaces of the placement plate (201) and the workbench (1), and eye screws (204) are connected to the concentric holes.

6. The destructive test device for crawler tread blocks according to claim 1, characterized in that: The adjustment spacing value of the spacing adjustment clamping plate (301) is 20 mm to 30 mm.

7. The destructive test device for crawler tread blocks according to claim 6, characterized in that: A distance sensor is provided on one side of the surface of the workbench (1) close to the oil cylinder (4); the distance sensor is a laser distance sensor and is used to detect a baffle on the oil cylinder (4) and control the retraction stroke of the oil cylinder (4).

8. The destructive test device for crawler tread blocks according to claim 7, characterized in that: The oil cylinder (4) pipeline is connected to an oil pressure station, and the oil pressure station is signal-connected to the data processing system (6).

9. The destructive test device for crawler tread blocks according to claim 1, characterized in that: A bracket (101) is provided at the bottom of the workbench (1), and an adjustment foot (102) is provided at the bottom of the bracket (101).

10. A method for destructive testing of a track tread block, characterized in that: The method uses the destructive test device for the crawler tread block according to any one of claims 1 to 9, comprising the following steps: Step 1: stably place the test crawler on the workbench (1) and fix it by the crawler fixing assembly (2); select the clamp embossing (304) corresponding to the crawler pattern block, and use the first clamping plate (302) and the second clamping plate (303) to clamp the pattern block to ensure a stable connection; Step 2: Start and gradually increase the pressure, and use the oil cylinder (4) to perform a gentle expansion and contraction test; Step 3, setting time through the data processing system (6); as the oil cylinder (4) moves back and forth, the tread block is subjected to repeated push and pull forces, simulating actual working conditions, and the data processing system (6) records the time from the beginning to the occurrence of cracks, fractures or deformations in the tread block; Step 4: The pressure sensor (5) collects force change data during each push-pull process and transmits the data to the data processing system (6) to generate a push-pull force curve. The durability and damage mechanism of the tread block are analyzed based on the push-pull force curve to complete the damage test of the track tread block.

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