A kind of impact testing device for mining high-strength chain

Abstract

The utility model discloses a kind of impact test devices for mining high-strength chain, it is related to chain testing technical field, it includes test box, both side walls of the test box are equipped with suspension plate, and the opposite surface of two suspension plates is equipped with multiple hooks, and the side of two suspension plates and test box side wall corresponds is connected with three butt columns, the both side walls of the test box are equipped with several butt holes, and suspension plate is fixed in the side wall of test box by the connection of butt column and butt hole. Through the combination design of annular distribution butt hole and center butt hole, suspension plate can be quickly adjusted to be installed horizontally, vertically or obliquely, simulate the stress state of chain under different working conditions in pit flexibly, improve the accuracy and engineering applicability of test result, the modular design of hook and suspension plate supports the installation of different specifications chain, adapts diversified test scene, while impact hammer is equipped with weight block that can be increased or decreased, can adjust impact energy according to test requirement.

Description

Technical Field

[0001] This utility model relates to the field of chain testing technology, specifically to an impact testing device for high-strength mining chains. Background Technology

[0002] High-strength mining chains are subjected to complex dynamic loads, especially impact loads, during underground operations. Their impact resistance directly affects the safety and service life of the equipment. Therefore, standardized impact testing of chains is crucial. However, existing chain impact testing equipment generally suffers from the following problems:

[0003] Traditional devices typically use horizontal or vertical fixing methods, which makes it difficult to simulate the complex state of chains under multi-angle forces in actual working conditions (such as tilting, lateral or longitudinal impact), resulting in deviations between test results and actual performance. Furthermore, different application scenarios have different requirements for the installation orientation of the chain (for example, conveyor chains need to be tested horizontally, while suspension support chains need to be tested vertically). However, existing devices lack the function of quickly adjusting the fixed angle, requiring frequent changes of clamps or structural adjustments, which is inefficient. Therefore, this application proposes an impact testing device for high-strength mining chains to solve the above problems. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides an impact testing device for high-strength mining chains, which solves the technical problems mentioned in the background.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows: an impact testing device for high-strength mining chains, comprising a test chamber, with suspension plates on both side walls of the test chamber, and multiple hooks installed on the opposite sides of the two suspension plates. Three docking posts are connected to the corresponding side of the two suspension plates and the side walls of the test chamber. Several docking holes are opened on both side walls of the test chamber, and the suspension plates are fixed to the side walls of the test chamber through the docking posts and docking holes. Bolts are connected to the docking posts for locking. Support frames are installed at the top of both sides of the test chamber, and impact hammers are connected to the support frames through a lifting mechanism. The impact hammers are positioned directly opposite the middle of the two suspension plates below.

[0008] Preferably, the several docking holes on both sides of the test chamber are arranged in a ring shape, and a central docking hole is provided at the middle of the several docking holes arranged in a ring shape.

[0009] Preferably, the connecting column in the middle of the suspension plate connects with the central connecting hole, and the connecting columns on both sides of the suspension plate connect arbitrarily with a number of connecting holes arranged in a ring, so that the suspension plate can be installed horizontally, vertically, and at an angle on the side wall of the test chamber.

[0010] Preferably, the lifting mechanism includes a drive shaft mounted on the top of two support frames, two winding reels mounted on the drive shaft, a drive structure that provides power to the drive shaft, and winding ropes connected to the two winding reels, with the bottom ends of the two winding ropes connected to an impact hammer.

[0011] Preferably, the drive structure includes a drive motor and a clutch, and the drive motor is connected to the drive shaft through the clutch. When charging, the clutch engages and the drive motor lifts the impact hammer. When releasing, the clutch is de-energized and disengaged, the drive shaft rotates freely, and the impact hammer falls by gravity.

[0012] Preferably, the impact hammer has an assembly groove installed on its upper side, and a number of counterweights are installed in the assembly groove.

[0013] (III) Beneficial Effects

[0014] The beneficial effects of this utility model are as follows:

[0015] This high-strength mining chain impact testing device, through the combination design of the annularly distributed docking holes and the central docking hole, allows the suspension plate to be quickly adjusted for horizontal, vertical, or inclined installation. It flexibly simulates the stress state of the chain under different working conditions underground (such as horizontal conveying, vertical suspension, or oblique impact), improving the accuracy of test results and engineering applicability. The modular design of the hook and suspension plate supports the installation of chains of different specifications, adapting to diverse testing scenarios. At the same time, the impact hammer is equipped with adjustable counterweights, which can adjust the impact energy according to testing requirements. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a three-dimensional structural diagram of the present invention after the chain is suspended;

[0018] Figure 3 This is a three-dimensional structural diagram of the suspension plate of this utility model;

[0019] Figure 4 This is a schematic diagram showing the distribution of the docking holes of this utility model.

[0020] In the diagram: 1 Test chamber, 2 Suspension plate, 3 Hook, 4 Connecting column, 5 Connecting hole, 6 Support frame, 7 Drive shaft, 8 Winding reel, 9 Drive structure, 10 Winding rope, 11 Impact hammer, 12 Counterweight. Detailed Implementation

[0021] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] like Figure 1-4As shown, this utility model provides a technical solution: an impact testing device for high-strength mining chains, including a test chamber 1. A control switch is installed on the side wall of the test chamber 1. Suspension plates 2 are provided on both side walls of the test chamber 1, and multiple hooks 3 are installed on the opposite sides of the two suspension plates 2. Three docking posts 4 are connected to the corresponding side of the side wall of the test chamber 1 on each of the two suspension plates 2. Several docking holes 5 are provided on both side walls of the test chamber 1, arranged in a ring shape. A central docking hole 5 is located in the middle of the ring-shaped arrangement of the docking holes 5. The suspension plates 2 are fixed to the side wall of the test chamber 1 through the docking posts 4 and the docking holes 5, and bolts are connected to the docking posts 4 for locking. The middle part of the suspension plate 2... The connecting posts 4 align with the central connecting hole 5. The connecting posts 4 on both sides of the suspension plate 2 arbitrarily align with several annularly distributed connecting holes 5, allowing the suspension plate 2 to be installed horizontally, vertically, or at an angle on the side wall of the test chamber 1. Loosen the locking bolts on the connecting posts 4, align the middle connecting post 4 of the suspension plate 2 with the central connecting hole 5 on the side wall of the test chamber 1, and select the annularly distributed connecting holes 5 to fix the connecting posts 4 on both sides according to the required horizontal / vertical / inclined angle. Then tighten all the locking bolts on the connecting posts 4 to ensure the suspension plate 2 is stable. Hang both ends of the chain to be tested on the hooks 3 of the two side suspension plates 2, or, if the suspension plate 2 is installed in front of the side wall of the test chamber 1, hang both ends of the chain to be tested on the hooks 3 of the two side suspension plates 2 for easy installation. Check the chain tension and adjust the suspension point to ensure there is no looseness, thus completing the installation of the chain to be tested. Support frames 6 are installed on both top sides of the test chamber 1, and impact hammers 11 are connected to the support frames 6 via a lifting mechanism. The impact hammers 11 are positioned directly above the center of the two suspension plates 2 below. The lifting mechanism includes a drive shaft 7 mounted on the top of the two support frames 6, with bearings at both ends connecting the drive shaft 7 to the two support frames 6. Two winding reels 8 are mounted on the drive shaft 7, and a drive structure 9 provides power to the drive shaft 7. The drive structure 9 is mounted on the support frames 6, and winding ropes 10 are connected to the two winding reels 8, with the bottom ends of the two winding ropes 10 connected to the impact hammers 11. The drive structure 9 includes a drive motor and a clutch. The impact hammer 11 is connected to the drive shaft 7 via a clutch. When power is charged, the clutch engages, and the drive motor lifts the impact hammer 11. When released, the clutch is de-energized and disengaged, allowing the drive shaft 7 to rotate freely. The impact hammer 11 falls due to gravity. An assembly slot is installed on the upper side of the impact hammer 11, and several counterweights 12 are installed in the assembly slot. According to the required impact energy, the number of counterweights 12 in the assembly slot on the upper side of the impact hammer 11 is increased or decreased. The motor of the drive structure 9 is started, the clutch engages, and the drive shaft 7 drives the winding reel 8 to rotate. The winding rope 10 lifts the impact hammer 11 to the predetermined height. After confirming that all safety measures are in place, the clutch power is cut off, allowing the drive shaft 7 to rotate freely. The impact hammer 11 falls freely and impacts the middle of the chain, thus realizing the impact test on the chain.

[0023] The operational steps for this application are as follows:

[0024] Loosen the locking bolts on the docking post 4, align the middle docking post 4 of the suspension plate 2 with the center docking hole 5 on the side wall of the test chamber 1, and select the annularly distributed docking holes 5 to fix the docking posts 4 on both sides according to the test angle requirements of horizontal / vertical / inclined. Then tighten all the locking bolts of the docking posts 4 to ensure that the suspension plate 2 is stable. Hang the two ends of the chain to be tested on the hooks 3 of the two sides of the suspension plate 2 respectively, or the two ends of the chain to be tested can be hung on the hooks 3 of the two sides of the suspension plate 2 respectively when the suspension plate 2 is installed in front of the side wall of the test chamber 1. This makes it easy to check the chain tension and adjust the suspension point to ensure that there is no looseness. According to the impact energy required for the test, add or remove the number of counterweights 12 in the mounting slot on the upper side of the impact hammer 11. Start the motor of the drive structure 9, engage the clutch, and drive the drive shaft 7 to drive the winding reel 8 to rotate. The impact hammer 11 is lifted to the predetermined height through the winding rope 10. After confirming that all safety measures are in place, cut off the clutch power supply, so that the drive shaft 7 can rotate freely and the impact hammer 11 can fall freely to impact the middle of the chain, thereby realizing the impact test on the chain.

[0025] In the description of this utility model, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this utility model and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0026] In this utility model, unless otherwise explicitly specified and limited, for example, it can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components or an interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An impact testing device for high-strength mining chains, characterized in that: The test chamber (1) includes a test chamber (1), which has two side walls with suspension plates (2) and multiple hooks (3) installed on the opposite sides of the two suspension plates (2). The two suspension plates (2) are connected to the side walls of the test chamber (1) with three docking posts (4). The two side walls of the test chamber (1) are provided with several docking holes (5). The suspension plates (2) are fixed to the side walls of the test chamber (1) by connecting the docking posts (4) and the docking holes (5). Bolts are connected to the docking posts (4) for locking. Support frames (6) are installed on the top of both sides of the test chamber (1). Impact hammers (11) are connected to the support frames (6) by a lifting mechanism. The impact hammers (11) are directly opposite the middle of the two suspension plates (2) below.

2. The impact testing device for high-strength mining chains according to claim 1, characterized in that: The test chamber (1) has several docking holes (5) on both sides in a ring shape, and a central docking hole (5) is provided in the middle of the several docking holes (5) in a ring shape.

3. The impact testing device for high-strength mining chains according to claim 2, characterized in that: The connecting column (4) at the upper middle part of the suspension plate (2) is connected to the central connecting hole (5), and the connecting columns (4) on both sides of the suspension plate (2) are connected to several connecting holes (5) arranged in a ring, so that the suspension plate (2) can be installed horizontally, vertically and at an angle on the side wall of the test chamber (1).

4. The impact testing device for high-strength mining chains according to claim 1, characterized in that: The lifting mechanism includes a drive shaft (7) mounted on the top of two support frames (6), two winding reels (8) mounted on the drive shaft (7), a drive structure (9) that provides power to the drive shaft (7), and winding ropes (10) connected to the two winding reels (8), with the bottom ends of the two winding ropes (10) connected to an impact hammer (11).

5. The impact testing device for high-strength mining chains according to claim 4, characterized in that: The drive structure (9) includes a drive motor and a clutch. The drive motor is connected to the drive shaft (7) through the clutch. When the motor is charged, the clutch engages and the drive motor lifts the impact hammer (11). When the motor is released, the clutch is de-energized and disengaged, the drive shaft (7) rotates freely, and the impact hammer (11) falls due to gravity.

6. The impact testing device for high-strength mining chains according to claim 1, characterized in that: The impact hammer (11) has an assembly groove installed on its upper side, and several counterweights (12) are installed in the assembly groove.

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