End loop device for steel wire rope production

Abstract

The utility model discloses a kind of end ring forming devices for steel wire rope production, which mainly includes a openable annular mould, a drive mechanism for controlling annular mould to open and close, a high-frequency induction heating unit arranged outside the annular mould, a hydraulic pressure system arranged outside the annular mould and an integrated cooling system. During operation, the end of the steel wire rope and the main body are placed in the closed mould, and the steel wire rope is in close contact by pressurization. Then, the metal in the contact area is instantaneously melted by high-frequency induction heating, and the two parts are fused under high pressure. Finally, the product is solidified by rapid cooling, forming a metallurgical bond integrated rope ring. The utility model completely solves the problems of stress concentration and strength loss in traditional mechanical ring forming. The finished product has high strength, neat appearance and stable quality, and is suitable for high-standard steel wire rope end processing applications.

Description

Technical Field

[0001] This utility model relates to the field of deep processing technology of steel wire rope, specifically to a device for fixing the end ring of a steel wire rope through thermoforming and material fusion. Background Technology

[0002] Currently, the formation of loops at the ends of wire ropes mainly relies on mechanical deformation (such as bending and pressing) or the use of external connectors (such as rope clamps and clamps). These methods have inherent drawbacks: mechanical pressing can damage the wires and reduce the overall breaking strength; external components such as rope clamps increase weight and volume, and may loosen under dynamic loads. More importantly, these methods do not change the relative relationship between the strands of the wire rope, and the root of the loop remains a stress concentration point, posing a safety hazard in the long term. A method that can essentially integrate the rope end with the rope body is a technical problem that the industry urgently needs to solve. Utility Model Content

[0003] The purpose of this invention is to provide a wire rope end-fixing device based on hot-melt forming, which fuses the wire rope end with the main body to form a complete, weak closed loop through local heating, pressurization and melting and resolidification.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is: an end-ring forming device for steel wire rope production, the innovation of which is that it includes: An openable ring mold whose inner cavity shape matches the target rope loop; A drive mechanism for controlling the opening and closing of a ring-shaped mold; A high-frequency induction heating unit disposed outside the annular mold; A hydraulic pressurization system located outside the annular mold is used to apply pressure to the joint of the wire rope; And a cooling system integrated within the ring mold.

[0005] Furthermore, the annular mold is composed of an upper mold and a lower mold that fit together, and a sealing structure surface is provided on the mold fitting surface.

[0006] Furthermore, the sealing structure surface is stepped, forming a boss and a groove, which are fitted together with a clearance, and a sealing ring is provided in the groove.

[0007] Furthermore, the driving mechanism includes a mold-closing cylinder and multiple telescopic guide pillars. The mold-closing cylinder is located above the upper mold plate or below the lower mold plate, providing power for opening and closing the mold and clamping force. The movable end of the telescopic guide pillar is connected to the upper mold, and the fixed end is connected to the lower mold.

[0008] Furthermore, the high-frequency induction heating unit includes an induction coil surrounding the mold, which is connected to an external high-frequency generator.

[0009] Furthermore, the hydraulic pressurization system includes at least two pressurization heads made of high-temperature resistant non-magnetic material, which are driven by hydraulic cylinders.

[0010] Furthermore, the cooling system is a closed cooling channel machined inside the annular mold body, and is provided with a coolant inlet and an outlet, with a drain port at the outlet.

[0011] The beneficial effects of this utility model after adopting the above structure are as follows: This invention utilizes high-frequency induction heating to rapidly melt or semi-melt the metal at the contact area between the end of the wire rope and the main body. Under the action of a hydraulic pressurization system, the materials of the two wires diffuse and fuse together, solidifying into a metallurgically bonded whole upon cooling. This completely eliminates the stress concentration problem of mechanical ring forming, and the breaking tensile force of the ring can approach the strength of the wire rope itself. The formed rope ring has a smooth surface, no external parts, a compact structure, and a smooth appearance. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the split structure of this utility model.

[0013] Explanation of reference numerals in the attached figures: 1. Base; 2. Ring mold; 21. Upper mold; 22. Lower mold; 3. Drive mechanism; 31. Mold closing cylinder; 32. Telescopic guide column; 4. High-frequency induction heating unit; 41. Induction coil; 5. Hydraulic pressurization system; 51. Main body pressurizing head; 52. End pressurizing head; 53. Oil cylinder; 6. Cooling system; 61. Cooling channel inlet; 62. Cooling channel outlet; 63. Drain port. Detailed Implementation

[0014] The present invention will be further described below with reference to the accompanying drawings.

[0015] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model.

[0016] like Figure 1 As shown, this device is mounted on a sturdy base 1. During processing, the end of the wire rope is first formed into an initial loop and placed inside the opened lower mold cavity 22.

[0017] When the drive mechanism 3 is activated, the upper mold 21 closes with the lower mold 22 under the action of the mold closing cylinder 31 (such as a hydraulic cylinder) and the telescopic guide column 32, and the sealing surface ensures tight mold closing. Subsequently, the hydraulic pressurization system 5 starts working, the oil cylinder 53 starts, and the main body pressurization head 51 and the end pressurization head 52 move towards each other, simultaneously pressing the main body and end of the wire rope from the inside of the ring, applying huge pre-pressure to make the two come into close contact.

[0018] Next, the high-frequency induction heating unit 4 is activated. An external high-frequency generator (not shown) supplies high-frequency alternating current to the induction coil 41, generating a high-frequency alternating magnetic field in the annular mold 2 inside the coil. Due to the electromagnetic induction effect, the contact area of ​​the steel wire rope (i.e., the target bonding area) sealed inside the mold rapidly generates Joule heat due to eddy currents and hysteresis effects, and the temperature rises to the melting temperature of the steel (approximately 1300-1500°C) in a short time, forming a molten bonding area. Under continuous high pressure, the molten metal at both ends fuses and diffuses with each other.

[0019] Once the set heating time is reached, the high-frequency heating stops. The cooling system 6 immediately starts working, and coolant (such as water or oil) is pumped in from the inlet 61, flows through the cooling channels inside the mold, flows out from the outlet 62, and is discharged from the drain port 63 for collection. This quickly removes the heat from the annular mold 2, causing the molten bonding zone 8 to solidify and crystallize rapidly, forming a strong metallurgically bonded whole.

[0020] Finally, the hydraulic pressurization system 5 is depressurized, the pressurization head is reset, the upper mold 21 is raised and opened, and the operator can take out the finished wire rope with the fixed ring completed.

[0021] The above description is only used to illustrate the technical solution of this utility model and is not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.

Claims

1. An end-ring forming device for steel wire rope production, characterized in that, include: An openable ring mold whose inner cavity shape matches the target rope loop; A drive mechanism for controlling the opening and closing of a ring-shaped mold; A high-frequency induction heating unit disposed outside the annular mold; A hydraulic pressurization system located outside the annular mold is used to apply pressure to the joint of the wire rope; And a cooling system integrated within the ring mold.

2. The end-ring forming device for steel wire rope production according to claim 1, characterized in that: The annular mold consists of an upper mold and a lower mold that fit together, and a sealing structure surface is provided on the mold fitting surface.

3. The end-ring forming device for steel wire rope production according to claim 2, characterized in that: The sealing structure surface is stepped, forming a boss and a groove, which are fitted together with a clearance, and a sealing ring is provided in the groove.

4. The end-ring forming device for steel wire rope production according to claim 1, characterized in that: The driving mechanism includes a mold-closing cylinder and multiple telescopic guide columns. The mold-closing cylinder is located above the upper mold plate or below the lower mold plate, providing power for opening and closing the mold and clamping force. The movable end of the telescopic guide column is connected to the upper mold, and the fixed end is connected to the lower mold.

5. The end-ring forming device for steel wire rope production according to claim 1, characterized in that: The high-frequency induction heating unit includes an induction coil surrounding the mold, which is connected to an external high-frequency generator.

6. The end-ring forming device for steel wire rope production according to claim 1, characterized in that: The hydraulic pressurization system includes at least two pressurization heads made of high-temperature resistant non-magnetic material, which are driven by hydraulic cylinders.

7. The end-ring forming device for steel wire rope production according to claim 1, characterized in that: The cooling system is a closed cooling channel machined inside the annular mold body, and is provided with a coolant inlet and outlet, with a drain outlet at the outlet.

Images