Steel wire rope pre-tensioning device

Abstract

The utility model discloses a steel wire rope pre-tensioning device, which particularly relates to the technical field of steel wire rope production and comprises a machine table, a fixing frame is arranged on one side of the machine table, and a lifting component is mounted on the fixing frame; the machine table is provided with two rotating mechanisms, and each rotating mechanism is sleeved with a wire roller and connected with a lifting assembly. A tensioning adjusting mechanism is further arranged on the machine table, guide assemblies are arranged on the two sides of the machine table, the rotating mechanism drives a transmission shaft to drive a wire roller to rotate through a first motor, the lifting assembly adjusts the height of the wire roller through an electric telescopic rod, and the tensioning adjusting mechanism drives a screw to drive a sliding base and a tensioning adjusting wheel to adjust tensioning force through a second motor. A follower wheel of the guide assembly assists in guiding the steel wire rope. The steel wire rope pre-tensioning device can accurately control pre-tensioning force, ensures that the steel wire rope is stressed uniformly, improves internal stress uniformity and production efficiency, is stable and reliable in structure, and is suitable for pre-tensioning processes of steel wire ropes of different specifications.

Description

TECHNICAL FIELD

[0001] The utility model relates to steel wire rope production technical field more specifically, the utility model relates to a kind of steel wire rope pre-tensioning device. BACKGROUND

[0002] Steel wire rope is composed of spiral steel wire bundle of steel wire, rope core and lubricating grease, can transmit long distance load, bearing safety factor is big, use safe and reliable, and dead weight is light, convenient to carry and transport, with higher tensile strength, fatigue strength and impact toughness, mainly used in hoisting, pull transport and other need high-strength wire rope transport.

[0003] In the production process of steel wire rope, in order to reduce the unevenness of internal stress between each strand of steel wire, improve the fatigue life of steel wire rope, generally need to carry out pre-tensioning process treatment to the produced steel wire rope, so that the internal stress of steel wire rope is more uniform, and the structure is more stable.

[0004] However, the existing traditional device is mostly fixed tension structure or manual adjustment, it is difficult to accurately control tension according to steel wire rope of different diameter and material, leading to incomplete internal stress elimination or damage caused by over-tensioning of part of products, and the steel wire rope is easy to appear high-low deviation in the process of paying off and winding, leading to uneven tension distribution, affecting the consistency of pre-tensioning effect.

[0005] Therefore, a kind of steel wire rope pre-tensioning device is presented. UTILITY MODEL CONTENTS

[0006] In order to overcome the above-mentioned defects of the prior art, the utility model provides a kind of steel wire rope pre-tensioning device to solve the problems raised in the above background art.

[0007] To achieve the above object, the utility model provides the following technical scheme: a kind of steel wire rope pre-tensioning device, including machine table, the fixed frame is welded on one side of the machine table, two rotating mechanisms are installed on the machine table, two lifting assemblies are installed on the fixed frame, each rotating mechanism is all sleeved with line roller, each line roller top is respectively connected with corresponding lifting assembly, tensioning adjusting mechanism is installed on the machine table, two guide assemblies are arranged on the both sides of tensioning adjusting mechanism.

[0008] Preferably, the rotating mechanism includes first motor, output shaft, turntable and transmission shaft, the first motor is installed at the bottom of machine table, the output shaft is connected to the output end of first motor, the turntable is installed at the top of output shaft, and the transmission shaft is coaxially connected to the top of turntable.

[0009] Preferably, the transmission shaft is hexagonal structure, and the line roller is coaxially provided with hexagonal through hole, the transmission shaft is inserted and matched in the hexagonal through hole, and the length size of transmission shaft is twice the length size of hexagonal through hole.

[0010] Preferably, the lifting assembly comprises an electric telescopic rod, a sleeve, an axle seat and a flange plate, the electric telescopic rod is installed on the fixing frame, the telescopic end of the electric telescopic rod is rotationally connected with the sleeve through the axle seat, and the bottom end of the sleeve is provided with the flange plate for being bolted with the top of the wire roller.

[0011] Preferably, the tension adjusting mechanism comprises a second motor, a first screw rod, a second screw rod, a sliding seat, a shaft rod, a tension adjusting wheel and a sliding rail, the second motor is installed on the machine table, the output end of the second motor is connected with the first screw rod, one end of the first screw rod is connected with the second screw rod, the first screw rod and the second screw rod are both sleeved with the sliding seat which is slidingly connected with the sliding rail, the shaft rod is installed on each sliding seat, and the tension adjusting wheel is installed on each shaft rod.

[0012] Preferably, the guide assembly comprises a base and a follower wheel, and the follower wheel is rotationally installed at the top end of the base.

[0013] The technical effects and advantages of the utility model are as follows:

[0014] 1. The second motor in the tension adjusting mechanism drives the first screw rod and the second screw rod to rotate, drives the sliding seat and the tension adjusting wheel to move, can accurately adjust the distance between the two adjusting wheels, flexibly changes the pre-tensioning force of the steel wire rope, and meets the process requirements of steel wire ropes of different specifications.

[0015] 2. The wire roller is driven by the electric telescopic rod to ascend and descend along the transmission shaft, is reversely rotated in cooperation with the rotating mechanism, the steel wire rope always keeps in the same horizontal plane in the tensioning process, force is evenly borne at all places, and the uniformity of internal stress and product quality are improved.

[0016] 3. The transmission shaft adopts a hexagonal structure and is inserted into the hexagonal through hole of the wire roller, and the length of the transmission shaft is twice the length of the through hole, so that the wire roller is always stably connected with the transmission shaft in the ascending and descending process, is prevented from being separated, and the continuous and reliable winding and unwinding process is ensured.

[0017] 4. The follower wheel of the guide assembly can reduce the frictional resistance of the steel wire rope, is driven by the motor of the rotating mechanism, smooth conveying of the steel wire rope is realized, production efficiency is improved, and the compact structure design is convenient for equipment installation and maintenance. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a whole structure schematic view of the utility model.

[0019] Figure 2 It is a structure schematic view of the rotating mechanism of the utility model.

[0020] Figure 3 It is a structure schematic view of the lifting adjusting assembly of the utility model.

[0021] Figure 4 This is a schematic diagram of the tensioning and adjusting mechanism of this utility model.

[0022] The attached figures are labeled as follows: 1. Machine base; 2. Fixed frame; 3. Rotating mechanism; 301. First motor; 302. Output shaft; 303. Turntable; 304. Transmission shaft; 4. Wire roller; 5. Lifting assembly; 501. Electric telescopic rod; 502. Sleeve; 503. Shaft seat; 504. Flange; 6. Tensioning adjustment mechanism; 601. Second motor; 602. First screw; 603. Second screw; 604. Slide seat; 605. Shaft; 606. Tensioning adjustment wheel; 607. Slide rail; 7. Guide assembly; 8. Wire rope body. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] As attached Figures 1-4 The wire rope pretensioning device shown includes a machine base 1, a fixed frame 2 welded to one side of the machine base 1, two rotating mechanisms 3 installed on the machine base 1, two lifting components 5 installed on the fixed frame 2, a wire roller 4 sleeved on each of the rotating mechanisms 3, and the top of each wire roller 4 connected to the corresponding lifting component 5. A tensioning adjustment mechanism 6 is installed on the machine base 1, and two guide components 7 are provided on both sides of the tensioning adjustment mechanism 6.

[0025] In practice, one end of the wire rope body 8 is fixed to a roller 4, then passes around each guide assembly 7 and the tension adjustment mechanism 6 before being fixedly connected to another roller 4. The tension adjustment mechanism 6 is used to adjust the tension on the wire rope body 8, so that the internal stress of the processed wire rope body 8 meets the usage requirements. During the processing of the wire rope body 8, the two rotating mechanisms 3 rotate in opposite directions, so that one roller 4 releases the wire and the other roller 4 retracts the wire, causing the wire rope body 8 to move. This ensures that all positions are subjected to the tension of the tension adjustment mechanism 6. During the processing, the two lifting assemblies 5 work together. One pulls the releasing roller 4 to rise, and the other pulls the retracting roller 4 to fall. This ensures that the wire rope body 8 is always on the same horizontal plane during processing, resulting in uniform stress on all parts of the wire rope body 8, improving the uniformity of the internal stress of the processed wire rope body 8, and improving the quality of the processed product.

[0026] The rotating mechanism 3 comprises a first motor 301, an output shaft 302, a rotating disc 303 and a transmission shaft 304, the first motor 301 is installed at the bottom of the machine table 1, the output end of the first motor 301 is connected with the output shaft 302, the top end of the output shaft 302 is installed with the rotating disc 303, and the top end of the rotating disc 303 is coaxially connected with the transmission shaft 304.

[0027] The transmission shaft 304 is in a hexagonal structure, and the wire roller 4 is coaxially provided with a hexagonal through hole, the transmission shaft 304 is inserted and matched in the hexagonal through hole, and the length of the transmission shaft 304 is twice the length of the hexagonal through hole.

[0028] In specific implementation, the first motor 301 is operated to drive the output shaft 302, the rotating disc 303 and the transmission shaft 304 to rotate synchronously, so as to drive the wire roller 4 to rotate, so as to wind and unwind the steel wire rope, and in the process of winding and unwinding, the lifting assembly 5 can adjust the height of the wire roller 4, and the length of the transmission shaft 304 can ensure that the wire roller 4 is always connected with the transmission shaft 304, so as to ensure that the wire roller 4 can still wind and unwind in the process of lifting.

[0029] The lifting assembly 5 comprises an electric telescopic rod 501, a sleeve 502, an axle seat 503 and a flange plate 504, the electric telescopic rod 501 is installed on the fixed frame 2, the electric telescopic rod 501 is rotationally connected with the sleeve 502 through the axle seat 503, and the bottom end of the sleeve 502 is provided with the flange plate 504 used for being bolted with the top of the wire roller 4.

[0030] In specific implementation, the electric telescopic rod 501 is telescoped to drive the sleeve 502 to lift, so as to drive the wire roller 4 connected with the bottom end to lift along the transmission shaft 304, so as to adjust the steel wire rope in the process of tensioning, ensure that the steel wire rope is uniformly wound on the wire roller 4, and keep the steel wire rope in the same horizontal plane, so as to ensure that the steel wire rope is uniformly stressed.

[0031] The tensioning adjusting mechanism 6 comprises a second motor 601, a first screw rod 602, a second screw rod 603, a sliding seat 604, a shaft rod 605, a tensioning adjusting wheel 606 and a sliding rail 607, the second motor 601 is installed on the machine table 1, the output end of the second motor 601 is connected with the first screw rod 602, one end of the first screw rod 602 is connected with the second screw rod 603, the first screw rod 602 and the second screw rod 603 are both sleeved with the sliding seat 604 which is slidingly connected with the sliding rail 607, the shaft rod 605 is installed on each sliding seat 604, and the tensioning adjusting wheel 606 is installed on each shaft rod 605.

[0032] The guide assembly 7 comprises a base and a follower, and the follower is rotationally installed at the top end of the base.

[0033] In specific implementation, the steel wire body 8 is supported outwardly by the follow-up wheels on each base, and the two tension adjusting wheels 606 pull the steel wire body 8 inwardly. By operating the second motor 601, the first screw rod 602 and the second screw rod 603 are synchronously rotated, so that the two sliding bases 604 are close to or away from each other along the sliding rails 607, thereby the distance between the two tension adjusting wheels 606 can be adjusted, the inward pulling force on the steel wire body 8 can be changed, and thus the pre-tensioning force on the steel wire can be adjusted according to requirements, and in cooperation with the guidance of each guide assembly 7, the internal stress of the produced steel wire can be more uniform, and the structure is more stable.

[0034] The above merely describes preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A steel wire rope pre-tensioning device comprising a machine table (1), characterized in that: One side of the machine table (1) is welded with a fixing frame (2), two rotating mechanisms (3) are installed on the machine table (1), two lifting assemblies (5) are installed on the fixing frame (2), each rotating mechanism (3) is sleeved with a wire roller (4), the top end of each wire roller (4) is connected with the corresponding lifting assembly (5), a tension adjusting mechanism (6) is installed on the machine table (1), and two guide assemblies (7) are arranged on the two sides of the tension adjusting mechanism (6).

2. A steel wire rope pre-tensioning device according to claim 1, characterized in that: The rotating mechanism (3) comprises a first motor (301), an output shaft (302), a rotating disc (303) and a transmission shaft (304), the first motor (301) is installed at the bottom of the machine table (1), the output end of the first motor (301) is connected with the output shaft (302), the top end of the output shaft (302) is installed with the rotating disc (303), and the top end of the rotating disc (303) is coaxially connected with the transmission shaft (304).

3. A steel wire rope pre-tensioning device according to claim 2, characterized in that: The transmission shaft (304) is in a hexagonal structure, the wire roller (4) is coaxially provided with a hexagonal hole, the transmission shaft (304) is inserted and matched in the hexagonal hole, and the length of the transmission shaft (304) is twice the length of the hexagonal hole.

4. A steel wire rope pre-tensioning device according to claim 3, characterized in that: The lifting assembly (5) comprises an electric telescopic rod (501), a sleeve (502), an axle seat (503) and a flange plate (504), the electric telescopic rod (501) is installed on the fixing frame (2), the telescopic end of the electric telescopic rod (501) is rotationally connected with the sleeve (502) through the axle seat (503), and the bottom end of the sleeve (502) is provided with the flange plate (504) used for being bolted with the top of the wire roller (4).

5. A steel wire rope pre-tensioning device according to claim 4, characterized in that: The tension adjusting mechanism (6) comprises a second motor (601), a first screw rod (602), a second screw rod (603), a sliding seat (604), a shaft rod (605), a tension adjusting wheel (606) and a sliding rail (607), the second motor (601) is installed on the machine table (1), the output end of the second motor (601) is connected with the first screw rod (602), one end of the first screw rod (602) is connected with the second screw rod (603), the first screw rod (602) and the second screw rod (603) are sleeved with the sliding seat (604) which is slidingly connected with the sliding rail (607), the shaft rod (605) is installed on each sliding seat (604), and the tension adjusting wheel (606) is installed on each shaft rod (605).

6. A steel wire rope pre-tensioning device according to claim 5, characterized in that: The guide assembly (7) comprises a base and a follow-up wheel, and the follow-up wheel is rotationally installed at the top end of the base.

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