A crane wire rope tension detection device

Abstract

The utility model relates to steel wire rope tensile detection technical field, and specifically is a kind of crane steel wire rope tensile detection equipment, including steel wire rope tension testing machine, steel wire rope tension testing machine includes frame, the lift platform that can move up and down, the upper clamp jaw and lower clamp jaw of the two ends of steel wire rope are clamped, upper clamp jaw is fixedly arranged on frame, lower clamp jaw is set on lift platform, the side of frame is also provided with moving device, moving device reciprocates up and down along the direction of lift platform, steel wire rope flaw detector is provided on moving device, steel wire rope passes through the detection area of steel wire rope flaw detector.The use of the application, not only can measure the maximum tension by steel wire rope tension testing machine, but also can measure the tension when the first wire of steel wire rope breaks by steel wire rope flaw detector, and further realize the measurement of actual use tension of steel wire rope.

Description

Technical Field

[0001] This utility model belongs to the field of wire rope tensile testing technology, specifically a crane wire rope tensile testing device. Background Technology

[0002] A wire rope is a helical bundle of steel wires that meet specific mechanical and geometric requirements, twisted together according to certain rules. It consists of steel wires, a core, and lubricant. The process involves first twisting multiple layers of steel wires into strands, then winding a certain number of strands around the core to form a helical shape.

[0003] After the steel wire rope is manufactured, it needs to be tested to determine its maximum tensile strength. When testing the steel wire rope, a steel wire rope tensile testing machine is often used to determine the tensile force that the steel wire rope can withstand when it breaks.

[0004] When using wire ropes, maintenance is often required when one wire breaks. However, existing wire rope tensile testing machines can only test the tensile force generated when all the wires in the wire rope break. Therefore, they cannot measure the tensile force required when the wire rope needs to be replaced in actual use. Utility Model Content

[0005] This invention provides a crane wire rope tensile strength testing device to address the deficiencies in the prior art.

[0006] This utility model is achieved through the following technical solution:

[0007] A crane wire rope tensile testing device includes a wire rope tensile testing machine. The wire rope tensile testing machine includes a frame, a lifting platform that can move up and down, an upper jaw and a lower jaw that clamp the two ends of the wire rope. The upper jaw is fixedly mounted on the frame, and the lower jaw is mounted on the lifting platform. A moving device is also provided on one side of the frame. The moving device moves up and down reciprocally along the direction of the lifting platform. A wire rope flaw detector is mounted on the moving device, and the wire rope passes through the detection area of ​​the wire rope flaw detector.

[0008] In the application, when measuring the wire rope, the upper end of the wire rope is first clamped by the upper jaw, and the lower end of the wire rope is passed through the detection area of ​​the wire rope flaw detector and clamped on the lower jaw. Then, the wire rope is stretched by the wire rope tensile testing machine, and the wire rope flaw detector is moved up and down by the moving device. Thus, when the wire rope breaks, the tensile force when the first wire of the wire rope breaks can be obtained.

[0009] Preferably, the moving device includes a moving block; a vertically and parallelly arranged round rod and a lead screw; a through slot on the lifting platform through which the round rod and lead screw pass; a threaded hole and a round hole on the moving block; the lead screw passes through the threaded hole and is threaded into the threaded hole; the round rod passes through the round hole; the wire rope flaw detector is fixedly mounted on the moving block; and the lead screw is driven by a drive mechanism to rotate along its axis. According to the principle of a lead screw-driven slide, the rotation of the lead screw drives the moving block to move up and down, and the up and down movement of the moving block drives the wire rope flaw detector to move up and down, thereby achieving flaw detection of the wire rope.

[0010] Preferably, the driving mechanism is a rotary motor, which is fixedly mounted on the frame and the rotating shaft of the rotary motor is coaxially and fixedly connected to the lead screw. The rotation of the rotating shaft of the rotary motor drives the rotation of the lead screw.

[0011] Preferably, the movable block has a groove, and a rotating plate is hinged to the groove via a damping hinge. The wire rope flaw detector is fixedly mounted on the rotating plate. The rotating plate allows the wire rope flaw detector to be misaligned, moving it away from the wire rope when it is not needed.

[0012] Preferably, a U-shaped plate is fixedly installed at the outer end of the rotating plate, and the handle of the wire rope flaw detector is placed inside the U-shaped plate. The U-shaped plate is threaded with a compression bolt for the compression handle, so that rotating the compression bolt can fix the wire rope flaw detector inside the U-shaped plate, thereby realizing the detachable connection of the wire rope flaw detector.

[0013] The beneficial effects of this utility model are as follows: The use of this application can not only measure the maximum tensile force through the wire rope tensile testing machine, but also measure the tensile force when the first wire on the wire rope breaks using the wire rope flaw detector, thereby realizing the measurement of the actual tensile force of the wire rope in use. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] As shown in the figure:

[0017] 1. Wire rope tensile testing machine; 2. Lead screw; 3. Moving block; 4. Wire rope flaw detector; 5. Rotary motor; 6. Rotating plate; 7. Upper jaw; 8. Lower jaw. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, 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.

[0019] A crane wire rope tensile strength testing device, such as Figure 1 As shown, the machine includes a wire rope tensile testing machine 1. The wire rope tensile testing machine 1 includes a frame, a lifting platform that can move up and down, an upper jaw 7 and a lower jaw 8 that clamp the two ends of the wire rope. The upper jaw 7 is fixedly mounted on the frame, and the lower jaw 8 is mounted on the lifting platform. A moving device is also provided on one side of the frame. The moving device moves up and down reciprocally along the direction of the lifting platform. A wire rope flaw detector 4 is mounted on the moving device, and the wire rope passes through the detection area of ​​the wire rope flaw detector 4.

[0020] In this application, the wire rope tensile testing machine 1 is prior art. Therefore, how the upper jaw 7 and the lower jaw 8 clamp the wire rope and how to measure the tensile force of the wire rope are all prior art, so their principles will not be described in detail.

[0021] In use of this application, when measuring a wire rope, the upper end of the wire rope is first clamped by the upper jaw 7, and then the lower end of the wire rope is passed through the detection area of ​​the wire rope flaw detector 4 and clamped on the lower jaw 8. Then, the wire rope is stretched by the wire rope tensile testing machine 1, and the wire rope flaw detector 4 is moved up and down by the moving device. Thus, when a wire breaks, the tensile force when the first wire of the wire rope breaks can be obtained.

[0022] The moving device includes a moving block 3; a vertically arranged and parallel round rod and a lead screw 2; a through slot on the lifting platform through which the round rod and lead screw 2 pass; a threaded hole and a round hole on the moving block 3; the lead screw 2 passing through the threaded hole and threadedly engaging with it; and the round rod passing through the round hole. A wire rope flaw detector 4 is fixedly mounted on the moving block 3. The lead screw 2 is driven to rotate along its axis by a drive mechanism, which is a rotary motor 5. The rotary motor 5 is fixedly mounted on the frame, and its shaft is coaxially and fixedly connected to the lead screw 2. The rotation of the rotary motor 5's shaft drives the rotation of the lead screw 2. According to the principle of the lead screw 2's transmission slide, the rotation of the lead screw 2 drives the moving block 3 to move up and down, which in turn drives the wire rope flaw detector 4 to move up and down, thereby achieving flaw detection of the wire rope.

[0023] The movable block 3 has a groove, and a rotating plate 6 is hinged to the groove via a damping hinge. The wire rope flaw detector 4 is fixedly mounted on the rotating plate 6. The rotating plate 6 allows the wire rope flaw detector 4 to be misaligned, so that it is moved away from the wire rope when not needed.

[0024] A U-shaped plate is fixedly installed at the outer end of the rotating plate 6. The handle of the wire rope flaw detector 4 is placed inside the U-shaped plate. The U-shaped plate is threaded with a compression bolt for the compression handle. Rotating the compression bolt can fix the wire rope flaw detector 4 inside the U-shaped plate, thereby realizing the detachable connection of the wire rope flaw detector 4.

[0025] The use of this application not only allows the maximum tensile force to be measured by the wire rope tensile testing machine 1, but also allows the tensile force at the moment the first wire on the wire rope breaks to be measured by the wire rope flaw detector 4, thereby realizing the measurement of the actual tensile force of the wire rope in use.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A crane wire rope tensile testing device, comprising a wire rope tensile testing machine, the wire rope tensile testing machine comprising a frame, a vertically movable lifting platform, an upper clamp and a lower clamp for clamping both ends of the wire rope, the upper clamp being fixedly mounted on the frame, and the lower clamp being mounted on the lifting platform, characterized in that: A moving device is also provided on one side of the frame. The moving device moves up and down back and forth along the direction of the lifting platform. A wire rope flaw detector is provided on the moving device, and the wire rope passes through the detection area of ​​the wire rope flaw detector.

2. The crane wire rope tensile strength testing equipment according to claim 1, characterized in that: The moving device includes a moving block; a vertically and parallelly arranged round rod and lead rod; a through slot for the round rod and lead rod to pass through on the lifting platform; a threaded hole and a round hole on the moving block; the lead rod passes through the threaded hole and is threaded into the threaded hole; the round rod passes through the round hole; a wire rope flaw detector is fixedly mounted on the moving block; and the lead rod is driven by a drive mechanism to rotate along its axis.

3. The crane wire rope tensile strength testing equipment according to claim 2, characterized in that: The driving mechanism is a rotary motor, which is fixedly mounted on the frame and its shaft is coaxially and fixedly connected to the lead screw.

4. The crane wire rope tensile strength testing equipment according to claim 3, characterized in that: The movable block has a groove, and a rotating plate is hinged in the groove through a damping hinge. The wire rope flaw detector is fixedly mounted on the rotating plate.

5. The crane wire rope tensile strength testing equipment according to claim 4, characterized in that: A U-shaped plate is fixedly installed at the outer end of the rotating plate. The handle of the wire rope flaw detector is placed inside the U-shaped plate, and the U-shaped plate is threaded with a compression bolt for the compression handle.

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