CN110899574A

CN110899574A - Device for cutting steel strand by circular cutting method

Info

Publication number: CN110899574A
Application number: CN201911165838.5A
Authority: CN
Inventors: 肖本林; 庄子婧; 苗勇; 宋凤蕾
Original assignee: Hubei University of Technology
Current assignee: Hubei University of Technology
Priority date: 2019-11-25
Filing date: 2019-11-25
Publication date: 2020-03-24

Abstract

The invention discloses a device for cutting a steel strand by using a circular cutting method, which comprises a shell, a disc with a central circular hole, a circular cutting device connected with the disc and a driving device, wherein the circular cutting device comprises a circular cutting head and a circular cutting head; the circular cutting device comprises a plurality of control rods, a blade and gear devices, wherein the blade is installed at one end of each control rod, the gear devices are arranged on two sides of each control rod, each gear device comprises a gear rotating shaft and a gear, gear grooves matched with the gears are formed in two sides of each control rod, and one end of each gear rotating shaft is fixed on the disc; a plurality of control rods are uniformly arranged on the disc in a circumferential manner, and blades on the control rods all point to the circle center of the disc; circular iron sheets are sleeved on the outer circumferences of the control rods in circular distribution, the outer end face of each control rod is in contact with the inner wall of each circular iron sheet, and the two ends of each circular iron sheet are connected through an electric retractor. The device is simple, easy to operate and convenient to carry, the cost of manual operation can be effectively reduced, the safety in the using process is ensured, and the cutting edge is neat.

Description

Device for cutting steel strand by circular cutting method

Technical Field

The invention relates to the technical field of steel strand cutting, in particular to a device for cutting a steel strand by using a circular cutting method.

Background

The steel strand is a steel product formed by twisting a plurality of steel wires and can be divided into a prestressed steel strand, an unbonded steel strand, a galvanized steel strand and the like. The process name is that tensioning is involved when a T-shaped beam or a box beam is produced, long steel strands can be formed at the end opening of a beam body after the prestressed tendons are tensioned, the retained steel strands need to be cut, the construction quality of the later-stage steel strands is directly influenced by the cutting quantity, safety and the cutting regularity, and the steel strand cutting equipment is involved.

The existing traditional steel strand cutting equipment is still large in size and complex in structure, and the cutting mode is that a handheld cutting machine is used for cutting a single steel strand or a field worker uses an angle grinder to cut redundant steel strands. Meanwhile, the defects of irregular cut, long time consumption, large workload of subsequent grinding in cutting, low working efficiency and the like exist.

Disclosure of Invention

The invention aims to provide a device for cutting a steel strand by using a circular cutting method, which has high cutting efficiency and regular cuts, aiming at the defects of the technology.

In order to achieve the purpose, the device for cutting the steel strand by using the circular cutting method comprises a shell, discs with central round holes, a circular cutting device and a driving device, wherein the discs with the central round holes are all arranged in the shell;

the circular cutting device comprises a plurality of control rods, a blade and gear devices, wherein the blade is installed at one end of each control rod, the gear devices are arranged on two sides of each control rod, each gear device comprises a gear rotating shaft and a gear, gear grooves matched with the gears are formed in two sides of each control rod, and one end of each gear rotating shaft is fixed on the disc; the control rods are uniformly arranged on the disc in a circumferential manner, and blades on the control rods all point to the circle center of the disc; circular iron sheets are sleeved on the outer circumferences of the control rods in circular distribution, the outer end face of each control rod is in contact with the inner wall of each circular iron sheet, and the two ends of each circular iron sheet are connected through an electric retractor.

Furthermore, the driving device comprises a motor, a front rotating shaft, a rear rotating shaft and a sleeve for connecting the front rotating shaft and the rear rotating shaft, the motor is connected with the front rotating shaft through a first crawler belt, and the rear rotating shaft is connected with the disc rotating shaft of the disc through a second crawler belt.

Compared with the prior art, the invention has the following advantages: the device for cutting the steel strand by using the circular cutting method is simple in equipment, easy to operate and convenient to carry, can effectively reduce the cost of manual operation, ensures the safety in the using process, and has regular cutting edges.

Drawings

FIG. 1 is a schematic view of the whole external part of the apparatus for cutting a steel strand by circular cutting according to the present invention;

FIG. 2 is a schematic view of the internal structure of FIG. 1;

FIG. 3 is a schematic view of the cutting device shown in FIG. 1;

fig. 4 is a schematic structural view of the gear device in fig. 3.

Wherein: the device comprises a shell 1, a motor 2, a first crawler 3, a rear rotating shaft 4, a sleeve 5, a front rotating shaft 6, a second crawler 7, a disc rotating shaft 8, a gear rotating shaft 9, a disc 10, a gear 11, a control rod 12, a blade 13, an electric retractor 14, a circular iron sheet 15 and a gear groove 16.

Detailed Description

The invention is described in further detail below with reference to the figures and the specific embodiments.

As shown in fig. 1 and 2, the device for cutting a steel strand by using a circular cutting method comprises a shell 1, a disc 10 with a central circular hole, a circular cutting device connected with the disc 10 and a driving device, wherein the disc 10, the circular cutting device and the driving device are all arranged in the shell 1; the driving device comprises a motor 2, a front rotating shaft 6, a rear rotating shaft 4 and a sleeve 5 for connecting the front rotating shaft 6 and the rear rotating shaft 4, the motor 2 is connected with the front rotating shaft 6 through a first crawler belt 3, and the rear rotating shaft 4 is connected with a disc rotating shaft 8 of a disc 10 through a second crawler belt 7.

Referring to fig. 3 and 4, the circular cutting device includes a plurality of control rods 12, a blade 13 mounted at one end of each control rod 12, and gear devices disposed at two sides of each control rod 12, each gear device includes a gear rotating shaft 9 and a gear 11, gear grooves 16 matched with the gear 11 are disposed at two sides of each control rod 12, and one end of each gear rotating shaft 9 is fixed on the disc 10. Meanwhile, a plurality of control rods 12 are uniformly arranged on the disc 10 in a circumferential manner, and blades on the control rods 12 all point to the center of the disc 10. In addition, circular iron sheets 15 are sleeved on the outer circumferences of the control rods 12 which are distributed in a circular mode, the outer end face of each control rod 12 is in contact with the inner wall of each circular iron sheet 15, the two ends of each circular iron sheet 15 are connected through the electric shrinkers 14, and the electric shrinkers 14 shrink to enable the circular iron sheets 15 to be gradually shrunk so that the blades 13 are gradually pushed inwards.

The motor 14 drives the front rotating shaft 6 to rotate through the first crawler 3, the rotation of the front rotating shaft 6 drives the rear rotating shaft to rotate through the sleeve 5, the rotation of the rear rotating shaft drives the disc rotating shaft 8 to rotate through the second crawler 7, the disc rotating shaft 8 rotates to drive the disc 10 to start rotating, the rotation of the disc 10 drives the rotation of the gear rotating shaft 9, the gear rotating shaft 9 drives the gear 11 to rotate, the control rod 12 is driven to move when the gear 11 starts rotating so as to enable the blade 13 to rotate along with the disc 10 to realize the purpose of fast operation to achieve cutting, and the control rod is driven to move to drive the gear to operate mainly due to the contraction of the circular iron sheet 15 in the middle of the device.

When a plurality of steel strands are rapidly cut by using a circular cutting method, the plurality of steel strands are sleeved in a circular cut, and the reserved length of the ends of the steel strands is determined. When the electric power is plugged in for operation, the six blades 13 rotate along with the rotation of the disc 10 in the embodiment, the rotation of the disc 10 ensures that the blades 13 rotate at a high speed, the circular iron sheet 15 in contact with the control rod 12 enables the control rod 12 to be pushed from outside to inside due to the electric shrinker 14, and the blades 13 are connected with the control rod 12 to enable the blades to move from outside to inside, so that the basic principle that the blades 13 rotate at a high speed and from outside to inside is achieved, the purpose that the steel strand inside the circular cut is achieved, and the cut after the steel strand is cut is tidy by the circular cutting method. When the six blades finally shrink together to form a closed circle due to the shrinkage of the round iron sheet, the material in the space of the circular area is cut by the blades when the closing effect is achieved. When the blades are assembled together, the circular iron piece 15 controlled by the electric retractor 14 is put to the original position, the disc is also rotated, and the connecting device of the control rod 12 and the blades 13 is rotated to the original position by the principle of centrifugal force. The device equipment is simple, easily operation, and convenient to carry can effectively reduce manual operation's cost, guarantees the security in the use to can reach the orderly effect of cutting edge of a knife when rotating fast and making the cutting steel strand wires.

Claims

1. A device for cutting a steel strand by using a circular cutting method comprises a shell (1), discs (10) with central round holes, a circular cutting device and a driving device, wherein the discs (10) are all arranged in the shell (1) and are connected with the discs (10); the method is characterized in that:

the circular cutting device comprises a plurality of control rods (12), a blade (13) arranged at one end of each control rod (12) and gear devices arranged at two sides of each control rod (12), each gear device comprises a gear rotating shaft (9) and a gear (11), gear grooves (16) matched with the gears (11) are formed in two sides of each control rod (12), and one end of each gear rotating shaft (9) is fixed on a disc (10); the control rods (12) are uniformly arranged on the disc (10) in a circumferential manner, and blades on the control rods (12) point to the circle center of the disc (10); circular iron sheets (15) are sleeved on the outer circumferences of the control rods (12) which are distributed in a circular mode, the outer end face of each control rod (12) is in contact with the inner wall of each circular iron sheet (15), and the two ends of each circular iron sheet (15) are connected through an electric shrinker (14).

2. The apparatus of claim 1, wherein the apparatus further comprises: the driving device comprises a motor (2), a front rotating shaft (6), a rear rotating shaft (4) and a sleeve (5) used for connecting the front rotating shaft (6) and the rear rotating shaft (4), the motor (2) is connected with the front rotating shaft (6) through a first crawler belt (3), and the rear rotating shaft (4) is connected with a disc rotating shaft (8) of a disc (10) through a second crawler belt (7).