Rope impact wear resistance testing equipment and testing method thereof

Abstract

A rope impact wear resistance test device and a test method thereof relate to the field of rope strength detection equipment.The rope impact wear resistance test device comprises a test main body, a swing device is installed on the upper end face of one side of the test main body and can swing in the length direction of the test main body, and a swing wheel diameter is located in a vertical plane; the swinging device can fix one end of a to-be-tested rope and can drive the rope to move along the length direction of the test main body; a test grinding wheel is mounted in the middle of the test main body; a working condition simulation device is mounted at the upper end of the outer side surface of the test main body away from the swing device; a bearing frame is arranged at the bottom of one side of the test main body close to the working condition simulation device. The device can test the wear resistance of a rope simulation smooth rod piece and a rod piece with edges and corners, and can realize the wear resistance test under the condition that the rope is subjected to impact force in cooperation with a counterweight assembly.

Description

Technical Field

[0001] The invention relates to the technical field of rope strength testing equipment, in particular to rope impact wear resistance testing equipment and a testing method thereof. Background Art

[0002] Ropes (belts) are used in many fields, including marine engineering, industrial lifting, fire rescue and other fields. The strength of ropes (belts) is related to the safety of use in the above fields. In the performance testing of ropes (belts), there are many test equipments with light stretching. In actual use, friction is more common and is often accompanied by long-term friction, which will greatly affect the mechanical properties of ropes (belts), causing their mechanical properties to be greatly reduced, and even breakage, which poses a safety hazard. Therefore, it is necessary to test the wear resistance of ropes (belts). In the existing wear resistance test, usually only the test grinding wheel is used in combination with the pulley to simulate the working conditions of rope friction for testing. Only the actual working condition can be tested in the form of a pulley, but the rope (belt) will encounter a variety of working conditions when in use, and the load-bearing end will be subjected to impact force, such as grinding wheel, cable guide hole, rod / plate with edges and corners, etc. The existing test equipment cannot simulate the above working conditions, making it impossible to refer to the rope (belt) when used in the above working conditions, and it is impossible to evaluate the service life of the rope (belt) under the above working conditions. The impact force and friction force are simultaneously applied, which has certain limitations. Summary of the invention

[0003] In order to solve the above problems in the background technology, the present invention provides a rope impact wear resistance testing device and a testing method thereof.

[0004] The technical solution of the present invention is as follows:

[0005] A rope impact wear test device comprises a test body, an upper end surface of one side of the test body is provided with a swing device, the swing device can swing along the length direction of the test body, and the swing wheel diameter is located in a vertical plane, the swing device can fix one end of the rope to be tested, and can drive the rope to move along the length direction of the test body;

[0006] A test grinding wheel is installed in the middle of the test body, and its rotation axis is perpendicular to the horizontal tangent of the highest point of the swing path of the swing device. A driving assembly is installed in the test body, which can drive the test grinding wheel to rotate and can drive the highest point of the test grinding wheel to be higher / lower than the upper end surface of the test body, and then can contact / separate with the rope to be tested;

[0007] A working condition simulation device is installed at the upper end of the outer side surface of the test body away from the swing device, and the working condition simulation device includes an arc-shaped contact surface, an inclined surface and / or a cable guide hole that contacts the rope to be tested, and the rope to be tested bypasses the working condition simulation device and extends out of the test body and is vertically connected to a counterweight assembly downward;

[0008] A receiving frame is provided at the bottom of the test body close to the working condition simulation device, and the projection of the counterweight assembly toward the receiving frame is located inside the receiving frame. A pressure sensor is provided at the bottom of the receiving frame to monitor the weight change of the receiving frame.

[0009] It also includes a control terminal, which has a built-in control system. The control system includes a controller. The swing device and the drive assembly are electrically connected to the controller. An encoder is installed at the rotating shaft of the test grinding wheel, and the encoder is electrically connected to the controller.

[0010] The specific design of the swing device is that the swing device includes a swing roller, and the swing roller is driven to rotate by a swing motor, and an inverted U-shaped frame is installed on the swing roller, and the inverted U-shaped frame is parallel to the rotation axis of the swing roller;

[0011] A plurality of clamping blocks are arranged between the inverted U-shaped frame and the swing roller along the length direction, which can fix one end of the rope to be tested to the swing roller. An adjusting bolt is installed on the upper end surface of the clamping block, and the adjusting bolt passes through the inverted U-shaped frame and is threadedly connected with an adjusting nut.

[0012] In order to monitor the number of swings of the swing roller and then record the number of frictions when the rope is worn and broken, an encoder is installed at the rotating shaft of the swing roller and is electrically connected to the controller.

[0013] The specific design of the working condition simulation device is that the working condition simulation device includes two mounting seats installed on the upper ends of the outer sides of the test body, and a cylindrical rod is installed between the mounting seats.

[0014] The working condition simulation device comprises two mounting seats installed on the upper ends of the outer sides of the test body, and a hexagonal rod is installed between the mounting seats.

[0015] In order to facilitate the working condition simulation device to simulate different working conditions and switch them without disassembly, the working condition simulation device includes two mounting seats installed on the upper end of the outer side of the test body, and a test rod is installed between the two mounting seats;

[0016] The test rod comprises a round rod portion and an angular rod portion respectively mounted on two mounting seats, and a pulley is connected between the two via a rotating shaft. The upper end surface of the angular rod portion is provided with at least one cable guide hole, and the axis of the cable guide hole is perpendicular to the angular rod portion.

[0017] In order to facilitate the fixing of ropes of different sizes and make the clamping block more compatible with the rope during fixing, a plurality of semicircular holes are provided on the end surface of the clamping block close to the swing roller, and the apertures of the semicircular holes decrease successively along the length direction of the clamping block;

[0018] A straight line perpendicular to the pulley axis and horizontal to the axis of any semicircular hole is located in the same vertical plane, and the axis of the fairlead hole is located in the same vertical plane as the axis of any semicircular hole.

[0019] In order to make the rope fall into the receiving frame after breaking, the length of the receiving frame along the test width direction is greater than the overall length of the test rod.

[0020] A rope impact wear test method, using a rope impact wear test device, includes the following steps:

[0021] S1: simulates the actual working condition of rope wear resistance with smooth friction interface;

[0022] S11: Install the cylindrical rod between the two mounting seats;

[0023] S12: Fix one end of the rope to be tested between the clamping block and the swing roller, and the other end toward the circle.

[0024] The mast extends and passes therethrough to connect the counterweight assembly;

[0025] S13: Control the driving assembly to drive the grinding wheel to move upward until it contacts the rope in step S12;

[0026] S14: Control the driving assembly to drive the grinding wheel to rotate, and start the swing motor to drive the rope in step S12 to move back and forth;

[0027] S15: Observe the wear resistance of the rope until the rope breaks, the pressure sensor detects the weight assembly falling, and sends a control signal to the controller, the controller controls the driving assembly and the swing motor to stop, and records the number of revolutions of the grinding wheel;

[0028] Alternatively, include the following steps:

[0029] S2: simulates the actual working condition as the wear resistance of the rope with angular friction interface;

[0030] S21: Install the hexagonal rod between the two mounting seats;

[0031] S22: Fix the rope to be tested between the clamping block and the swing roller, and pass it through the hexagonal rod to connect the rope.

[0032] Heavy components;

[0033] S23: Control the driving assembly to drop the test grinding wheel to a position below the upper end surface of the test body;

[0034] S24: Start the swing motor to drive the rope in step S22 to move back and forth;

[0035] S25: Observe the wear resistance of the rope until the rope breaks. The pressure sensor detects that the counterweight assembly falls and sends a control signal to the controller. The controller controls the swing motor to stop and records the number of swings of the swing roller.

[0036] The beneficial effects of the present invention are as follows: the present invention is a rope impact wear test device and a test method thereof. Firstly, by means of a swing device in cooperation with a working condition simulation device and a grinding wheel, the wear resistance performance of a rope simulating a smooth rod and an angular rod can be tested, and by cooperating with a counterweight assembly, the wear resistance test can be performed when the rope is subjected to impact force at the same time, which is convenient and quick. Secondly, by means of the working condition simulation device, cylindrical rods and hexagonal rods can be used, so that working conditions with smooth and angular wear-resistant interfaces can be tested, thereby increasing the test range of the rope wear test, and working conditions such as pulleys and cable guide holes can be simulated, so that a reference can be provided for the service life of the rope under various working conditions, thereby increasing the practicality of the test device. Finally, by means of the design of systems such as a control terminal, a pressure sensor and an encoder, the test can automatically record the number of revolutions or swings of the grinding wheel or the swing roller when the rope breaks, thereby increasing the degree of automation of the rope wear test. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] By reading the detailed description of the preferred embodiment below, the scheme and advantages of the present application will become clear to those skilled in the art. The accompanying drawings are only for the purpose of illustrating the preferred embodiment and are not to be considered as limiting the present invention.

[0038] In the attached picture:

[0039] Figure 1 This is a schematic diagram of the test principle of the test device;

[0040] Figure 2 This is the front view of the actual structure of the test equipment (the working condition is a cylindrical rod);

[0041] Figure 3 It is a top view of the actual structure of the test equipment (the working condition is a cylindrical rod);

[0042] Figure 4 It is a partial front view of the test structure (the working condition is a hexagonal rod);

[0043] Figure 5 It is a partial side view of the swing device;

[0044] Figure 6 Front view of the installation of the grinding wheel dressing device;

[0045] Figure 7A top view of the installation of the grinding wheel dressing device;

[0046] Figure 8 The structural diagram of the working condition simulation device (test rod state);

[0047] Fig. 9 This is a schematic diagram of the test equipment system connection;

[0048] The components represented by the reference numerals in the figure are:

[0049] 1. Test body; 2. Swinging device; 21. Swinging roller; 22. Swinging motor; 23. Inverted U-shaped frame; 24. Clamping block; 25. Adjusting bolt; 26. Adjusting nut; 27. Semicircular hole; 3. Rope; 4. Test grinding wheel; 5. Drive assembly; 6. Working condition simulation device; 61. Mounting seat; 62. Cylindrical rod; 63. Hexagonal rod; 64. Test rod; 641. Round rod part; 642. Angular rod part; 643. Pulley; 644. Cable guide hole; 7. Counterweight assembly; 8. Receiver frame; 9. Pressure sensor; 10. Control terminal; 11. Controller; 12. Encoder; 13. Fixing frame; 14. Connecting frame; 15. Grinding wheel. DETAILED DESCRIPTION

[0050] The exemplary embodiments of the present disclosure will be described in more detail below in conjunction with the accompanying drawings. It should be noted that these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art. The present disclosure can be implemented in various forms and should not be limited by the embodiments described herein.

[0051] Example 1

[0052] The present embodiment discloses a rope impact wear resistance testing device, comprising a test body 1, which serves as a carrier of the test equipment and is used to place components and a system control end required for the test. A swing device 2 is installed on the upper end surface of one side of the test body 1, and the main body of the swing device 2 is located in the test body 1. The swing device 2 can swing along the length direction of the test body 1, and the swing wheel diameter is located in a vertical plane, that is, the horizontal tangent of the swing arc or its extended highest point is parallel to the length direction of the test body 1. The swing device 2 can fix one end of a rope 3 to be tested, and can drive the rope 3 to move along the length direction of the test body 1, so as to simulate the movement of the rope 3 in actual working conditions.

[0053] Among them, combined Figure 5The swing device 2 includes a swing roller 21, the axis of the swing roller 21 is parallel to the width direction of the test body 1, and the length of the swing roller 21 is greater than half of the width of the test body 1, so as to ensure that the rope 3 to be tested can be fixed at multiple different positions. The swing roller 21 is driven to rotate by a swing motor 22, and the swing motor 22 cooperates with a reducer and a commutator and other components to realize the reciprocating rotation control of the swing roller 21. The existing technology can be used without redundant description. An inverted U-shaped frame 23 is installed on the swing roller 21, and the two ends of the inverted U-shaped frame 23 are installed on the two side surfaces of the swing roller 21, and It is parallel to the rotation axis of the swing roller 21, and a plurality of clamping blocks 24 are arranged between the swing roller 21 and the inverted U-shaped frame 23 along the length direction. The plurality of clamping blocks 24 are arranged side by side, and one end of the rope 3 to be tested can be fixed to the swing roller 21. An adjusting bolt 25 is installed on the upper end surface of the clamping block 24, and an adjusting nut 26 is threadedly connected to the inverted U-shaped frame 23. When adjusting the clamping, the clamping block 24 is driven to move by the adjusting bolt 25, and the rope 3 is placed between the clamping block 24 and the swing roller 21, and then the adjusting bolt 25 is fixed to the inverted U-shaped frame 23 by the adjusting nut 26.

[0054] In order to facilitate the fixing of ropes 3 with different cross-sectional sizes, a plurality of semicircular holes 27 are opened on the end surface of the clamping block 24 close to the swing roller 21. The semicircular holes 27 opened at the bottom of each clamping block 24 are consistent, and the apertures of the semicircular holes 27 decrease successively along the length direction of the clamping block 24 to adapt to ropes 3 of different sizes. When fixing, one end of the rope 3 is knotted to a size larger than the hole, and then the semicircular hole 27 of the clamping block 24 is adapted to the unknotted part of the rope 3, and a limit is formed between the knotted position of the rope 3 and the clamping block 24, thereby fixing the rope 3.

[0055] Secondly, in this scheme, a test grinding wheel 4 is installed in the middle position of the test body 1, which is used to simulate the wear of the rope 3 during the test, and its rotation axis is perpendicular to the horizontal tangent of the highest point of the swing path of the swing device 2, that is, its rotation axis is parallel to the swing axis of the swing roller 21, and both are parallel to the width direction of the test body 1. A driving assembly 5 is installed in the test body 1, which can drive the test grinding wheel 4 to rotate and can drive the highest point of the test grinding wheel 4 to be higher / lower than the upper end surface of the test body 1, and then can contact / separate with the rope 3 to be tested. On the one hand, the driving assembly 5 includes a power device for driving the grinding wheel to move up and down, which can be manual or electric, and the test grinding wheel 4 can be moved up and down, and the existing technology can be used, and no unnecessary details are made. On the other hand, the driving assembly 5 includes a power device for driving the test grinding wheel 4 to rotate. In this scheme, a power motor can be used to drive the test grinding wheel 4 to rotate. When performing a wear resistance test, if the test grinding wheel 4 is needed to provide friction, it can be moved to a position higher than the upper end surface of the test body 1 by the driving assembly 5.

[0056] Based on the above structure, combined with Figure 2 A working condition simulation device 6 is installed on the upper end of the outer side surface of the test body 1 away from the swing device 2, and the working condition simulation device 6 includes an arc-shaped contact surface, an inclined surface and / or a cable guide hole 644 that contacts the rope 3 to be tested, which can simulate different working conditions, and the rope 3 to be tested bypasses the working condition simulation device 6 and extends out of the test body 1 and is vertically connected to a counterweight assembly 7 downward. When performing a wear resistance test, one end of the rope 3 is fixed to the swing device 2, and the other end bypasses the working condition simulation device 6 and is vertically connected to the counterweight assembly 7 downward. In this solution, the counterweight assembly 7 can use a weight to provide impact force to the rope 3 to simulate the load-bearing condition of the rope 3 in actual working conditions, and the gravity of the weight is configured according to the actual measured breaking strength of the rope 3.

[0057] The above is a description of the simulated wear of rope 3, combined with Figure 2 and Figure 3 After the rope 3 has been worn for a long time, it will break. After the break, data needs to be recorded to reflect the wear resistance of the rope 3, and after the break, a shutdown signal needs to be provided for the entire system. In this solution, a receiving frame 8 is provided at the bottom of one side of the test body 1 close to the working condition simulation device 6, which is used to receive the counterweight assembly 7 after the rope 3 breaks. The projection of the counterweight assembly 7 toward the receiving frame 8 is located in the receiving frame 8, so that the counterweight assembly 7 can fall into the receiving frame 8. A pressure sensor 9 is provided at the bottom of the receiving frame 8 to monitor the change in weight of the receiving frame 8. After the rope 3 breaks, the counterweight assembly 7 falls to the bottom of the receiving frame 8, and the pressure sensor 9 monitors the gravity change signal of the receiving frame 8, which is converted into an electrical signal as a stop signal for the entire test system.

[0058] In order to automatically perform a wear test and stop after the rope 3 is fixed, combined Fig. 9 A control terminal 10 is installed on one side of the test body 1. The control terminal 10 has a built-in control system and an external display screen, which can display the parameters during the test. The control system includes a controller 11. The swing device 2 and the drive assembly 5 are electrically connected to the controller 11, that is, the swing motor 22 and the power motor are electrically connected to the controller 11, which can control the start and stop of the swing motor 22 and the power motor. An encoder 12 is installed at the rotating shaft of the test grinding wheel 4, and the encoder 12 is electrically connected to the controller 11, which can record the number of revolutions of the rotating shaft of the test grinding wheel 4. In addition, an encoder 12 is installed at the rotating shaft of the swing roller 21, and it is electrically connected to the controller 11, which can record the number of reciprocating cycles of the swing roller 21. The above two parameters correspond to the wear resistance of the rope 3, and the pressure sensor 9 is also electrically connected to the controller 11. The pressure sensor 9 can convert the gravity signal of the counterweight assembly 7 detected after the break into an electrical signal and transmit it to the controller 11, thereby controlling the swing motor 22 and the power motor to stop running.

[0059] Secondly, combined Figure 2 and Figure 4 The working condition simulation device 6 in this scheme adopts a replaceable form. The working condition simulation device 6 includes two mounting seats 61 installed on the upper end of the outer surface of the test body 1. According to the smooth or angular working conditions, a cylindrical rod 62 or a hexagonal rod 63 can be installed between the two mounting seats 61, and other shapes of rods can also be installed according to the actual working conditions.

[0060] The above is a description of the rope wear test equipment. The following is a method for rope wear test configured in combination with the characteristics of the test equipment. The rope impact wear test equipment is used, which specifically includes the following steps:

[0061] S1: simulates the actual working condition of the rope 3 with a smooth friction interface, specifically the rope 3 passing around the bare rod;

[0062] S11: Install the cylindrical rod 62 between the two mounting seats 61;

[0063] S12: Fix one end of the rope 3 to be tested between the pressing block 24 and the swing roller 21, select a semicircular hole 27 of corresponding size opened at the bottom of the pressing block 24 according to the size of the rope 3, and extend the other end toward the cylindrical rod 62 and bypass it to connect the counterweight assembly 7;

[0064] S13: When testing the cylindrical rod 62, the test grinding wheel 4 is required to simulate the wear of the rope 3. The test grinding wheel 4 needs to be moved to contact with the rope 3, and the driving assembly 5 is controlled to drive the test grinding wheel 4 to move upward to contact with the rope 3 in step S12;

[0065] S14: Control the power motor of the driving assembly 5 to drive the test grinding wheel 4 to rotate, provide friction for the rope 3, and start the swing motor 22 to drive the rope 3 in step S12 to move back and forth;

[0066] S15: Observe the wear resistance of the rope 3 until the rope 3 breaks, the pressure sensor 9 detects the weight assembly 7 falling, and transmits a control signal to the controller 11. The controller 11 controls the power motor and the swing motor 22 of the driving assembly 5 to stop, and records the number of revolutions of the test grinding wheel 4, that is, the number of revolutions corresponding to the encoder 12 installed on the rotating shaft of the test grinding wheel 4;

[0067] S2: simulates the actual working condition of the wear resistance of the rope 3 with an angular friction interface, specifically, the rope 3 is wound around the rod with an angular surface. It should be noted that the order of testing the smooth friction interface in S1 is not limited;

[0068] S21: Install the hexagonal rod 63 between the two mounting seats 61;

[0069] S22: Fix the rope 3 to be tested between the pressing block 24 and the swing roller 21, and pass through the hexagonal rod 63 to connect the counterweight assembly 7;

[0070] S23: when testing the hexagonal rod 63, the wear resistance of the rope 3 at the corners of the hexagonal rod 63 is tested, and the driving assembly 5 is controlled to drop the test grinding wheel 4 below the upper end surface of the test body 1, so that the test grinding wheel 4 is separated from the rope 3;

[0071] S24: Start the swing motor 22 to drive the rope 3 in step S22 to move back and forth;

[0072] S25: Observe the wear resistance of the rope 3 until the rope 3 breaks. The pressure sensor 9 detects that the counterweight assembly 7 falls and transmits a control signal to the controller 11. The controller 11 controls the swing motor 22 to stop and records the number of swings of the swing roller 21, that is, the number of revolutions corresponding to the encoder 12 installed on the rotating shaft of the swing roller 21.

[0073] Example 2

[0074] In an optional embodiment, when the test grinding wheel 4 is used to test the rope 3, the test grinding wheel 4 will also be worn. When the tested rope 3 obviously deviates from its actual strength standard, that is, the number of revolutions of the test grinding wheel 4 is far less than the standard range that the rope 3 can withstand when it breaks, at this time, the surface of the test grinding wheel 4 shows obvious traces of the rope 3 being worn, and needs to be trimmed. In this embodiment, a grinding wheel trimming device is designed, such as Figure 6 and Figure 7As shown, the grinding wheel dressing device includes a fixed frame 13 spanning the upper end of the test body 1, and is arranged in a U shape with an opening facing downward. A connecting frame 14 is slidably installed on the upper end surface of the fixed frame 13, and the connecting frame 14 extends toward one side of the test grinding wheel 4 and is connected to a grinding wheel 15 at the end, and the axis of the grinding wheel 15 is parallel to and coplanar with the axis of the test grinding wheel 4. During non-grinding, the grinding wheel 15 is slid to one end of the fixed frame 13 along with the connecting frame 14. When grinding is required, the connecting frame 14 is pushed to drive the grinding wheel 15 to move above the wear position of the test grinding wheel 4, and the test grinding wheel 4 is driven upward by the driving assembly 5 to contact the grinding wheel 15, and the test grinding wheel 4 is driven to rotate at a high speed, and then the grinding wheel 15 is started to grind the wear position.

[0075] It should be noted that the lowest point of the grinding wheel 15 should be higher than the upper end surface of the test body 1, and after the rope 3 with the largest diameter is fixed to the swing device 2 and the counterweight assembly 7, it should be higher than the rope 3 being tested. Moreover, the length of the grinding wheel 15 along the axial direction is 1 / 6-1 / 5 of the length of the test grinding wheel 4, so that an area of ​​the test grinding wheel 5 can be ground to ensure that the worn position of the test grinding wheel 4 that is offset during the test of the rope 3 is ground. Moreover, the length should not be too long to reduce the grinding of the test grinding wheel 4 outside the offset area of ​​the rope 3.

[0076] Example 3

[0077] For convenience, another working condition simulation device 6 is also provided in this embodiment, Figure 8, it is possible to replace the simulated working condition without disassembly, the working condition simulation device 6 includes two mounting seats 61 installed on the upper end of the outer side of the test body 1, the mounting seats 61 are consistent with the above-mentioned design installation position, a test rod 64 is installed between the two mounting seats 61, the difference is that the test rod 64 is designed, specifically, the test rod 64 includes a round rod portion 641 and an angular rod portion 642 respectively installed with the two mounting seats 61, the angular rod portion 642 can be designed as a multi-section type, the cross-sectional shape of each section has a polygon with a different number of sides, or it can be designed as a shape with a fixed number of sides, a pulley 643 is connected between the round rod portion 641 and the angular rod portion 642 through a rotating shaft, and the upper end surface of the angular rod portion 642 is at least installed with A cable guide hole 644, and the axis of the cable guide hole 644 is perpendicular to the angle rod 642. By designing different components, a variety of different working conditions can be simulated. When switching, the rope 3 can be contacted with different parts, which is convenient and quick. When the working condition of the rope 3 is the test pulley 643 and the round rod 641, it is necessary to cooperate with the test grinding wheel 4 to contact the rope 3 to provide friction. When testing the angle rod 642 and the cable guide hole 644, the wear resistance between the edges or edges of the cable guide hole 644 is tested. The test grinding wheel 4 can be separated from the rope 3. In addition, the length of the receiving frame 8 along the test width direction is greater than the overall length of the test rod 64, so that the rope 3 can bypass each part of the test rod 64 to ensure that the counterweight assembly falls into the receiving frame 8.

[0078] It should be noted that the arc contact surface refers to the end surface of the rope 3 that contacts the round rod portion 641 or the pulley 643, and when conducting the above two working condition tests, the test grinding wheel 4 needs to be adjusted to a state of contact with the rope 3 to be tested to provide friction, and in the above two cases, the number of revolutions of the test grinding wheel 4 when the rope 3 breaks reflects the strength of the rope 3, and the number of revolutions of the test grinding wheel 4 needs to be recorded, while the inclined surface refers to the end surface of the rope 3 that contacts the angular rod portion 642 or the cable guide hole 644. At this time, the test grinding wheel 4 needs to be separated from the rope 3, and in the above two cases, the number of swings of the swing roller 21 after the rope 3 breaks reflects the strength of the rope 3, and the number of swing revolutions of the swing roller 21 needs to be recorded.

[0079] Secondly, the straight line perpendicular to and horizontal to the axis of the pulley 643 and the axis of any semicircular hole 27 are located in the same vertical plane, ensuring that when simulating the working condition of the pulley 643, the rope 3 can remain straight after being fixed, and the axis of the cable guide hole 644 and the axis of any semicircular hole 27 are located in the same vertical plane, ensuring that when simulating the working condition of the cable guide hole 644, the rope 3 can also remain straight after being fixed.

[0080] According to the working condition simulation device 6 designed above, a rope impact wear test method is also designed in conjunction with the working condition simulation device 6. The rope impact wear test device equipped with the new working condition simulation device 6 is used, and the following steps are included:

[0081] S3-1: simulates the actual working condition of rope 3 with smooth rod friction interface;

[0082] S3-1-1: fix one end of the first rope 3 to be tested between the clamping block 24 and the swing roller 21, and extend the other end toward the test rod 64 and pass through the round rod portion 641 thereof and connect to the counterweight assembly 7; S3-1-2: control the drive assembly 5 to drive the test grinding wheel 4 to move upward until it contacts the rope 3;

[0083] S3-1-3: Control the power motor of the driving assembly 5 to drive the test grinding wheel 4 to rotate, and at the same time start the swing motor 22 to drive the rope 3 to move back and forth;

[0084] S3-1-4: Observe the wear resistance of the rope 3 until the rope 3 breaks, and record the number of revolutions of the test grinding wheel 4. After the rope breaks, the pressure sensor 9 detects the fall of the counterweight assembly 7 and transmits a control signal to the controller 11. The controller 11 controls the power motor of the drive assembly 5 and the swing motor 22 to stop, and reads the number of revolutions of the test grinding wheel 4 recorded by the encoder 12 at the same time;

[0085] S3-2: simulates the actual working condition as the wear resistance strength of rope 3 at the friction interface of pulley 643;

[0086] S3-2-1: fix one end of the second rope 3 between the pressing block 24 and the swing roller 21, and pass the other end of the second rope 3 around the pulley 643 to connect to the counterweight assembly 7;

[0087] S3-2-2: Control the driving assembly 5 to drive the test grinding wheel 4 to move upward until it contacts the rope 3;

[0088] S3-2-3: Control the power motor of the driving assembly 5 to drive the test grinding wheel 4 to rotate, and at the same time start the swing motor 22 to drive the rope 3 to move back and forth;

[0089] S3-2-4: Observe the wear resistance of the rope 3 until the rope 3 breaks, and record the number of revolutions of the test grinding wheel 4. After the break, the pressure sensor 9 detects the fall of the counterweight assembly 7 and transmits a control signal to the controller 11. The controller 11 controls the power motor of the drive assembly 5 and the swing motor 22 to stop, and reads the number of revolutions of the test grinding wheel 4 recorded by the encoder 12 at the same time.

[0090] S3-3: simulates the actual working condition as the wear resistance strength of rope 3 at the friction interface of fairlead hole 644;

[0091] S3-3-1: fix one end of the third rope 3 between the pressing block 24 and the swing roller 21, and extend the other end toward the test rod 64 and pass through the cable guide hole 644 to connect to the counterweight assembly 7;

[0092] S3-3-2: Control the driving assembly 5 to drop the test grinding wheel 4 in step S21 to a position below the upper end surface of the test body 1;

[0093] S3-3-3: Start the swing motor 22 to drive the rope 3 to move back and forth;

[0094] S3-3-4: Observe the wear resistance of the rope 3 until the rope 3 breaks, the pressure sensor 9 detects the weight assembly 7 falling, and transmits a control signal to the controller 11, the controller 11 controls the swing motor 22 to stop, and records the number of swings of the swing roller 21;

[0095] S3-4: simulates the actual working condition as the wear resistance of rope 3 with angular friction interface;

[0096] S3-4-1: fix one end of the fourth rope 3 between the pressing block 24 and the swing roller, and extend the other end toward the test rod 64 and pass around its angled rod portion 642 and connect to the counterweight assembly 7;

[0097] S3-4-2: Control the test grinding wheel 4 to fall below the upper end surface of the test body 1;

[0098] S3-4-3: Start the swing motor 22 to drive the rope 3 to move back and forth.

[0099] S3-4-4: Observe the wear resistance of the rope 3 until the rope 3 breaks. The pressure sensor 9 detects that the counterweight assembly 7 falls and transmits a control signal to the controller 11. The controller 11 controls the swing motor 22 to stop and records the number of swings of the swing roller 21.

[0100] On the basis of the above steps, the present embodiment can also perform simulation tests on multiple working conditions at the same time, and test multiple forms of arc contact surfaces simultaneously. First, the test rod 64 is installed between the two mounting seats 61, and the two ropes 3 are fixed and passed around the round rod portion 641 and the pulley 643 respectively, and the test grinding wheel 4 is controlled to contact with the rope 3, and the swing motor 22 and the test grinding wheel 4 are started for testing, or the inclined surface and the cable guide hole 644 are tested at the same time, the two ropes 3 are fixed and passed around the angular rod portion 642 and the cable guide hole 644 respectively, and the swing motor 22 and the test grinding wheel 4 are started for testing.

Claims

1. A rope impact wear test device, characterized in that: The test body (1) comprises a test body (1), wherein a swing device (2) is installed on an upper end surface of one side of the test body (1), wherein the swing device (2) can swing along the length direction of the test body (1), and the swing wheel diameter is located in a vertical plane, and the swing device (2) can fix one end of a rope (3) to be tested, and can drive the rope (3) to move along the length direction of the test body (1); A test grinding wheel (4) is installed in the middle of the test body (1), and its rotation axis is perpendicular to the horizontal tangent of the highest point of the swing path of the swing device (2). A driving component (5) is installed in the test body (1), which can drive the test grinding wheel (4) to rotate and can drive the highest point of the test grinding wheel (4) to be higher / lower than the upper end surface of the test body (1), and then can contact / separate with the rope (3) to be tested; A working condition simulation device (6) is installed at the upper end of the outer side surface of the test body (1) away from the swing device (2), and the working condition simulation device (6) comprises an arc-shaped contact surface, an inclined surface and / or a cable guide hole (644) that contacts the rope (3) to be tested, and the rope (3) to be tested bypasses the working condition simulation device (6) and extends out of the test body (1) and is vertically connected to a counterweight assembly (7) downward; A receiving frame (8) is arranged at the bottom of one side of the test body (1) close to the working condition simulation device (6), and the projection of the counterweight assembly (7) in the direction of the receiving frame (8) is located inside the receiving frame (8). A pressure sensor (9) is arranged at the bottom of the receiving frame (8) to monitor the weight change of the receiving frame (8); The invention also comprises a control terminal (10), wherein the control terminal (10) has a built-in control system, wherein the control system comprises a controller (11), wherein the swing device (2), the drive assembly (5) and the pressure sensor (9) are electrically connected to the controller (11), and an encoder (12) is installed at the rotating shaft of the test grinding wheel (4), and the encoder (12) is electrically connected to the controller (11).

2. A rope impact wear test device according to claim 1, characterized in that: The swing device (2) comprises a swing roller (21), and the swing roller (21) is driven to rotate by a swing motor (22), and an inverted U-shaped frame (23) is installed on the swing roller (21), and the inverted U-shaped frame (23) is parallel to the rotation axis of the swing roller (21); A plurality of clamping blocks (24) are arranged between the inverted U-shaped frame (23) and the swing roller (21) along the length direction, and can fix one end of the rope (3) to be tested to the swing roller (21); an adjusting bolt (25) is installed on the upper end surface of the clamping block (24), and the adjusting bolt passes through the inverted U-shaped frame (23) and is threadedly connected to an adjusting nut (26).

3. A rope impact wear test device according to claim 2, characterized in that: An encoder (12) is installed at the rotating shaft of the swing roller (21), and is electrically connected to the controller (11).

4. A rope impact wear test device according to claim 2, characterized in that: The working condition simulation device (6) comprises two mounting seats (61) mounted on the upper ends of the outer side surfaces of the test body (1), and a cylindrical rod (62) is mounted between the mounting seats (61).

5. The rope impact wear test equipment according to claim 2, characterized in that: The working condition simulation device (6) comprises two mounting seats (61) mounted on the upper end of the outer side of the test body (1), and a hexagonal rod (63) is mounted between the mounting seats (61).

6. The rope impact wear test equipment according to claim 2, characterized in that: The working condition simulation device (6) comprises two mounting seats (61) mounted on the upper end of the outer side of the test body (1), and a test rod (64) is mounted between the two mounting seats (61); The test rod (64) comprises a round rod portion (641) and an angular rod portion (642) respectively mounted on two mounting seats (61), and a pulley (643) is connected between the two via a rotating shaft. At least one cable guide hole (644) is mounted on the upper end surface of the angular rod portion (642), and the axis of the cable guide hole (644) is perpendicular to the angular rod portion (642).

7. A rope impact wear test device according to claim 6, characterized in that: The end surface of the pressing block (24) close to the swing roller (21) is provided with a plurality of semicircular holes (27), and the apertures of the semicircular holes (27) decrease successively along the length direction of the pressing block (24); A straight line perpendicular to and horizontal to the axis of the pulley (643) and the axis of any one of the semicircular holes (27) are located in the same vertical plane, and the axis of the cable guide hole (644) and the axis of any one of the semicircular holes (27) are located in the same vertical plane.

8. The rope impact wear test equipment according to claim 6, characterized in that: The length of the receiving frame (8) along the test width direction is greater than the overall length of the test rod (64).

9. A rope impact wear test method, using a rope impact wear test device as claimed in claim 4 or 5, characterized in that: The following steps are involved: S1: simulates the actual working condition as the wear resistance of the rope with a smooth friction interface (3); S11: Install the cylindrical rod (62) between two mounting seats (61); S12: Fix one end of the rope (3) to be tested between the pressing block (24) and the swing roller (21), and extend the other end toward the cylindrical rod (62) and pass around it to connect to the counterweight assembly (7); S13: Control the driving assembly (5) to drive the test grinding wheel (4) to move upward until it contacts the rope (3) in step S12; S14: controlling the driving assembly (5) to drive the test grinding wheel (4) to rotate, and at the same time starting the swing motor (22) to drive the rope (3) in step S12 to move back and forth; S15: observing the wear resistance of the rope (3) until the rope (3) breaks, the pressure sensor (9) detects that the counterweight assembly (7) falls, and transmits a control signal to the controller (11), the controller (11) controls the driving assembly (5) and the swing motor (22) to stop, and records the number of revolutions of the test grinding wheel (4); or, The following steps are involved: S2: simulates the actual working condition as the wear resistance of the rope with angular friction interface (3); S21: Install the hexagonal rod (63) between two mounting seats (61); S22: Fix the rope to be tested (3) between the pressing block (24) and the swing roller (21), and pass it around the hexagonal rod (63) to connect the counterweight assembly (7); S23: controlling the driving assembly (5) to drop the test grinding wheel (4) to a position below the upper end surface of the test body (1); S24: starting the swing motor (22) to drive the rope (3) in step S22 to move back and forth; S25: Observe the wear resistance of the rope (3) until the rope (3) breaks, the pressure sensor (9) detects the fall of the counterweight assembly (7), and transmits a control signal to the controller (11). The controller (11) controls the swing motor (22) to stop and records the number of swings of the swing roller (21).

10. A rope impact wear test method, using the rope impact wear test device as claimed in claim 6, characterized in that: The following steps are involved: S3: abrasion resistance of the rope (3) with a curved contact surface, an inclined surface and / or a fairlead hole (644) simulating actual working conditions; S31: Install the test rod (64) between the two mounting seats (61); S32: The rope to be tested (3) is fixed between the pressing block (24) and the swing roller (21), and is connected to the counterweight assembly (7) by passing the test rod (64); S33: controlling the driving assembly (5) to move the test grinding wheel (4) to contact or separate from the rope (3); S34: starting the swing motor (22) and the test grinding wheel (4) simultaneously or starting the swing motor (22) alone to drive the rope (3) to move back and forth; S35: Observe the wear resistance of the rope (3) until the rope (3) breaks, the pressure sensor (9) detects that the counterweight assembly (7) falls, and transmits a control signal to the controller (11). The controller (11) controls the swing motor (22) to stop and stops the rotation of the test grinding wheel (4), and records the number of swings of the swing roller (21) or the number of swings of the swing roller (21).

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