High-strength mine car thrust rod fatigue endurance test device

Abstract

The utility model belongs to the technical field of thrust rod fatigue durability testing machine, especially a kind of high-strength mining vehicle thrust rod fatigue durability testing device, it includes: frame, frame includes base, the top of base is equipped with two support arms, and the same cross arm is installed between two support arms;Two sockets are fixedly installed on the two sides of cross arm, and the insertion hole is formed on two support arms, and two sockets are respectively inserted with two insertion holes;Limit mechanism is located on two sockets, and two sockets are connected with two support arms;Two male sockets are located on the two sides of base, and the male seat is fixedly installed on the bottom of two support arms, and two male seats are respectively connected with two male sockets;Two locking grooves are respectively located on the bottom inner wall of two male sockets.The utility model realizes the modularization quick disassembly of frame, greatly improves the portability and transport efficiency of equipment.

Description

Technical Field

[0001] This utility model relates to the technical field of thrust rod fatigue durability testing machine, and in particular to a high-strength mining truck thrust rod fatigue durability testing device. Background Technology

[0002] The high-strength mining truck thrust rod fatigue durability testing device is used to simulate the actual stress state of the mining truck thrust rod under extreme working conditions, accelerate its fatigue process in the laboratory, and evaluate its fatigue life, structural integrity and safety margin.

[0003] A search revealed that patent document CN116105997A discloses a fatigue testing machine for automotive thrust rod assemblies, belonging to the technical field of fatigue testing machines. It includes a first and second support frame connected by a machine frame. A first connector and a second connector are respectively connected to the adjacent sides of the first and second support frames. There is one first connector, which is connected to the first support frame via a first driving member. There are two second connectors, at least one of which can move along the surface of the second support frame and can tilt. When an I-type thrust rod is connected, one of the second connectors can move directly below the first connector, and the second connector is horizontally positioned. When a V-type thrust rod is connected, the line connecting the second connector and the first connector forms a V-shape, and the second connector tilts towards the adjacent side. This invention is adaptable to both I-type and V-type thrust rods and can perform tensile, compressive, and torsional fatigue tests on them.

[0004] Patent document CN210347100U discloses a fatigue testing device for durability testing of a thrust rod assembly. The device includes a top plate, a limiting base mounted at the bottom of the top plate, a fastening screw mounted at the bottom of the limiting base, two laser rangefinders mounted below the fastening screws, a connecting block mounted on one side of each laser rangefinder, a left half-fixed ring mounted on the other side of the connecting block, and a right half-fixed ring mounted on the other side of the left half-fixed ring. A guide plate is positioned between the two laser rangefinders, and two guide fixing plates are mounted above the guide plate. Both ends of each guide fixing plate are connected to a connecting rod, a telescopic bracket is mounted at one end of each connecting rod, and a fixing rod is mounted on one side of each guide fixing plate. This invention, by installing a guiding mechanism, can keep the thrust rod's central axis aligned with the power drive's central axis, resulting in more accurate test results.

[0005] In the existing technology, the frame of the high-strength mining truck thrust rod fatigue durability testing device is not easy to disassemble, has a large volume, and is not conducive to movement and transportation. Therefore, we propose a high-strength mining truck thrust rod fatigue durability testing device to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of high-strength mining truck thrust rod fatigue durability testing device, such as inconvenient disassembly of the frame, large size, and difficulty in movement and transportation. Therefore, this invention proposes a high-strength mining truck thrust rod fatigue durability testing device.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: A fatigue durability testing device for a high-strength mining truck thrust rod includes: The frame includes a base, on the top of which are two support arms, and a common cross arm is installed between the two support arms; Two sockets are fixedly installed on both sides of the cross arm. Each of the two support arms has a socket hole, and the two sockets are plugged into the two socket holes respectively. A limiting mechanism, located on the two sockets, is used to connect the two sockets to the two support arms; Two convex sockets are located on both sides of the base, and convex seats are fixedly installed at the bottom of the two support arms. The two convex seats are respectively engaged with the two convex sockets. Two locking slots are respectively located on the bottom inner wall of the two convex sockets; The positioning mechanism, located on the two support arms, is used to position the convex seat in conjunction with the two locking slots.

[0008] Preferably, the limiting mechanism includes two limiting blocks, with the sides of the two limiting blocks that are close to each other contacting the sides of the two support arms that are far from each other.

[0009] Preferably, a reset groove is provided on the top of each of the two sockets, and the four sides of the two limiting blocks slide in contact with the four inner walls of the two reset grooves respectively.

[0010] Preferably, a first spring is fixedly installed at the bottom of each of the two limiting blocks, and the bottom ends of the two first springs are respectively fixedly connected to the bottom inner walls of the two reset slots.

[0011] Preferably, the positioning mechanism includes fixed seats that are fixedly installed on two support arms, and each fixed seat has a rectangular slide rail.

[0012] Preferably, insert plates are slidably installed in both rectangular slides, and the bottoms of the two insert plates are respectively engaged with two locking slots.

[0013] Preferably, each of the two insert plates has two slots on the side away from each other, and each of the two fixing seats has a sliding hole on the side away from each other. A locking rod is slidably installed in each of the two sliding holes. One end of each locking rod is engaged with the corresponding two slots, and a pull block is fixedly installed at the other end of each locking rod.

[0014] Preferably, a second spring is fitted on the outer side of each of the two levers, one end of each second spring is fixedly connected to a two pull block, and the other end of each second spring is fixedly connected to a two fixed seat.

[0015] Compared with the prior art, the advantages of this utility model are: The modular design of the rack allows for rapid assembly and disassembly, greatly improving the portability and transportation efficiency of the equipment. Through the design of multiple plug-in structures, such as sockets and holes, and convex seats and sockets, along with corresponding locking mechanisms, the base, support arms, and cross arms that make up the frame can be easily disassembled into multiple independent components. This fundamentally solves the problems of difficult movement and high transportation costs caused by the integrated structure and large size of traditional testing devices, making them particularly suitable for scenarios that require transportation between different testing sites.

[0016] The connection structure is stable and reliable, ensuring rigidity and testing accuracy during the experiment. Despite its detachable design, the lateral restraint of the support arm by the limiting block under spring action, and the vertical locking of the insert plate and locking groove, ensure that the components form a stable overall frame after assembly. This structure can effectively withstand the high-frequency alternating loads generated during thrust rod fatigue testing, preventing loosening at the connections from affecting the accuracy of the test data and ensuring the reliability of the test results.

[0017] The locking and positioning mechanism is easy to operate, requires no special tools, and has high assembly efficiency. The locking lever in the positioning mechanism automatically engages with the slot in the insert plate under the action of the second spring, achieving self-locking; during disassembly, simply pulling the pull block releases the lock. Similarly, the limiting mechanism can be released by pressing the limiting block. The entire disassembly and assembly process is intuitively designed and easy to operate, reducing the labor intensity of operators and saving installation and disassembly time.

[0018] Improved space utilization and warehousing economy of equipment: When not in use or requiring long-distance transportation, the disassembled base, support arms, and crossarms can be stacked compactly, significantly reducing the space occupied. This not only facilitates storage in warehouses but also reduces space requirements and related costs for logistics and transportation, bringing direct economic benefits to users.

[0019] High ease of maintenance reduces the total lifecycle cost of the equipment. If a component of the equipment (such as a single support arm or crossarm) is damaged, there is no need to replace or repair the entire bulky frame; simply remove the faulty module for repair or replacement. This modular design greatly simplifies the maintenance process, reduces downtime, and saves on maintenance costs. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a high-strength mining truck thrust rod fatigue durability testing device proposed in this utility model; Figure 2 This is a three-dimensional structural schematic diagram of a high-strength mining truck thrust rod fatigue durability testing device proposed in this utility model; Figure 3 This is a schematic diagram of the connection between the base and the convex seat of a high-strength mining truck thrust rod fatigue durability testing device proposed in this utility model; Figure 4 This utility model proposes a high-strength mining car thrust rod fatigue durability testing device. Figure 1 A magnified structural diagram of part A in the middle; Figure 5 This utility model proposes a high-strength mining car thrust rod fatigue durability testing device. Figure 2 A magnified structural diagram of part B.

[0021] In the diagram: 1. Base; 2. Support arm; 3. Cross arm; 4. Socket; 5. Socket; 6. Reset slot; 7. Limiting block; 8. Fixing seat; 9. Rectangular slide; 10. Insert plate; 11. Convex socket; 12. Convex seat; 13. Locking slot; 14. Protruding block; 15. Card slot; 16. Card rod; 17. Pull block; 18. Second spring. Detailed Implementation

[0022] The technical solutions in this embodiment will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this embodiment, and not all embodiments. Example 1

[0023] Reference Figures 1-5 A high-strength mining truck thrust rod fatigue durability testing device, comprising: The frame includes a base 1, with two support arms 2 mounted on the top of the base 1, and a common cross arm 3 mounted between the two support arms 2. The base 1, support arms 2 and cross arm 3 are usually welded from high-strength steel plates (such as Q345B) or alloy structural steel, and stress-relieving annealing is performed on key stress-bearing parts and welds to prevent deformation or cracking during long-term high-load testing. Two sockets 5 are fixedly installed on both sides of the cross arm 3. Each of the two support arms 2 has a socket 4, and the two sockets 5 are plugged into the two sockets 4 respectively. A limiting mechanism is provided on the two sockets 5 for connecting the two sockets 5 to the two support arms 2; Two convex sockets 11 are located on both sides of the base 1, and convex seats 12 are fixedly installed at the bottom of the two support arms 2 respectively. The two convex seats 12 are respectively engaged with the two convex sockets 11. Two locking slots 13 are respectively provided on the bottom inner wall of the two convex sockets 11; The positioning mechanism is located on the two support arms 2 and is used to position the convex seat 12 in conjunction with the two locking grooves 13.

[0024] In this embodiment, the limiting mechanism includes two limiting blocks 7, with the sides of the two limiting blocks 7 that are close to each other contacting the sides of the two support arms 2 that are far apart from each other.

[0025] In this embodiment, a reset groove 6 is provided on the top of each of the two sockets 5, and the four sides of the two limiting blocks 7 slide in contact with the inner walls of the four sides of the two reset grooves 6 respectively.

[0026] In this embodiment, a first spring is fixedly installed at the bottom of each of the two limiting blocks 7, and the bottom ends of the two first springs are fixedly connected to the bottom inner walls of the two reset grooves 6 respectively.

[0027] In this embodiment, the positioning mechanism includes a fixed seat 8 fixedly installed on two support arms 2, and a rectangular slide rail 9 is provided on each of the two fixed seats 8.

[0028] In this embodiment, insert plates 10 are slidably installed in both rectangular slides 9, and the bottoms of the two insert plates 10 are respectively engaged with the two locking slots 13.

[0029] In this embodiment, two slots 15 are provided on the side of the two insert plates 10 that are far apart from each other, and sliding holes are provided on the side of the two fixed seats 8 that are far apart from each other. A locking rod 16 is slidably installed in each of the two sliding holes. One end of the two locking rods 16 is respectively engaged with the two corresponding slots 15, and a pull block 17 is fixedly installed on the other end of the two locking rods 16.

[0030] In this embodiment, a second spring 18 is sleeved on the outer side of each of the two levers 16. One end of each of the two second springs 18 is fixedly connected to the two pull blocks 17, and the other end of each of the two second springs 18 is fixedly connected to the two fixed seats 8.

[0031] In this embodiment, when the frame needs to be disassembled, a pull block 17 is pulled away from the fixed base 8. The pull block 17 stretches the second spring 18 and causes the locking rod 16 to disengage from the upper locking slot 15, releasing the fixation of the insert plate 10. Then, the insert plate 10 is pulled upward, causing it to disengage from the locking slot 13. As the insert plate 10 moves upward, the lower locking slot 15 moves upward simultaneously. When the locking rod 16 aligns with the lower locking slot 15, the second spring 18 is released, causing the pull block 17 to reset. The pull block 17 then moves the locking rod 16. Insert the insert plate 10 into the slot 15 to fix it in place. Then press the limiting block 7 on the same side. The limiting block 7 squeezes the first spring downward into the reset slot 6, releasing the restriction on one side of the support arm 2. Then pull the support arm 2 away from the horizontal arm 3 to move the socket 5 away from the socket 4. At the same time, the support arm 2 drives the convex seat 12 to disengage from the convex socket 11. Remove one support arm 2. Remove the other support arm 2 in the same way. Then separate the base 1, support arm 2 and horizontal arm 3 for easy movement and transportation. Example 2

[0032] The difference between this embodiment and the first embodiment is that protrusions 14 are fixedly installed on the sides of the two insert plates 10 that are far apart from each other. The two protrusions 14 are designed to facilitate the use of the hand to pull the insert plates 10 upward.

[0033] The rest is the same as in Example 1.

[0034] The above description is only a preferred embodiment of this practice, but the scope of protection of this embodiment is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the scope of the technology disclosed in this embodiment, based on the technical solution and the inventive concept of this embodiment, should be covered within the scope of protection of this embodiment.

Claims

1. A fatigue durability testing device for a high-strength mining truck thrust rod, characterized in that, include: The frame includes a base (1), and two support arms (2) are mounted on the top of the base (1), with a common cross arm (3) between the two support arms (2). Two sockets (5) are fixedly installed on both sides of the cross arm (3). Two support arms (2) are provided with sockets (4). The two sockets (5) are plugged into the two sockets (4) respectively. A limiting mechanism is provided on the two sockets (5) for connecting the two sockets (5) to the two support arms (2); Two convex sockets (11) are located on both sides of the base (1), and convex seats (12) are fixedly installed at the bottom of the two support arms (2). The two convex seats (12) are respectively engaged with the two convex sockets (11). Two locking slots (13) are respectively provided on the bottom inner wall of two convex sockets (11); The positioning mechanism is located on the two support arms (2) and is used to position the convex seat (12) in conjunction with the two locking grooves (13).

2. The fatigue durability testing device for a high-strength mining car thrust rod according to claim 1, characterized in that, The limiting mechanism includes two limiting blocks (7), with the sides of the two limiting blocks (7) that are close to each other contacting the sides of the two support arms (2) that are far apart from each other.

3. The fatigue durability testing device for a high-strength mining car thrust rod according to claim 2, characterized in that, The top of each of the two sockets (5) is provided with a reset groove (6), and the four sides of the two limiting blocks (7) slide in contact with the inner walls of the four sides of the two reset grooves (6).

4. The fatigue durability testing device for a high-strength mining car thrust rod according to claim 3, characterized in that, The bottom of each of the two limiting blocks (7) is fixedly installed with a first spring, and the bottom ends of the two first springs are fixedly connected to the bottom inner walls of the two reset slots (6).

5. The fatigue durability testing device for a high-strength mining truck thrust rod according to claim 4, characterized in that, The positioning mechanism includes a fixed seat (8) fixedly installed on two support arms (2), and a rectangular slide (9) is provided on each of the two fixed seats (8).

6. The fatigue durability testing device for a high-strength mining car thrust rod according to claim 5, characterized in that, Insert plates (10) are slidably installed in both rectangular slides (9), and the bottoms of the two insert plates (10) are respectively engaged with the two locking slots (13).

7. The fatigue durability testing device for a high-strength mining car thrust rod according to claim 6, characterized in that, Two slots (15) are provided on the side of the two insert plates (10) that are far apart from each other. Sliding holes are provided on the side of the two fixed seats (8) that are far apart from each other. A locking rod (16) is slidably installed in each of the two sliding holes. One end of the two locking rods (16) is respectively engaged with the two corresponding slots (15). A pull block (17) is fixedly installed on the other end of the two locking rods (16).

8. The fatigue durability testing device for a high-strength mining car thrust rod according to claim 7, characterized in that, Two second springs (18) are fitted on the outer sides of the two levers (16). One end of the two second springs (18) is fixedly connected to the two pull blocks (17) respectively, and the other end of the two second springs (18) is fixedly connected to the two fixed seats (8) respectively.

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