CN201565661U

CN201565661U - Flying shear

Info

Publication number: CN201565661U
Application number: CN2009202516809U
Authority: CN
Inventors: 赵继学
Original assignee: TIANJIN BOJI ELECTROMECHANICAL HI-TECH Co Ltd
Current assignee: TIANJIN BOJI ELECTROMECHANICAL HI-TECH Co Ltd
Priority date: 2009-12-14
Filing date: 2009-12-14
Publication date: 2010-09-01
Anticipated expiration: 2019-12-14

Abstract

The utility model discloses a flying shear, which is arranged behind an intermediate mill and before a finishing mill; the flying shear comprises a reducing mechanism, a shear mechanism and a transmission motor, wherein the transmission motor is used for providing power to the reducing mechanism and the shear mechanism, and the reducing mechanism and the shear mechanism are combined to be a whole. The utility model has the benefits that the shear mechanism adopts double shearing heads, the reducing mechanism and the shear mechanism are integrated to be a whole, the structure is simple and compact, the quantity and weight of mechanisms and components involved in a shearing motion are reduced to lower the inertia value of the motion of the shear mechanism and reduce the speed variation and improve the sensitiveness, the stability and the positioning accuracy of the shear mechanism of the flying shear, thereby improving the shearing quality of the flying shear. When rolled pieces are required to be smashed and cut, a narrow shear blade and a wide shear blade for the double shearing heads can work at the same time, the smashing and cutting length as well as the smashing and cutting time are reduced, the smashing and cutting effect is improved, and steel flying accident can be prevented effectively.

Description

Flying shearing machine

Technical field

The utility model relates to a kind of bar steel rolling production line flying shear, particularly relates to a kind of flying shearing machine of rolled piece on the continuous rolling production line being implemented the timely processing of crop, back-end crop and accident.

Background technology

Flying shearing machine are a kind of equipment of rolled piece being implemented to shear technology in workpiece motion s, are indispensable on the continous way steel rolling production-line, very crucial equipment.Particularly, along with the output and the kind of modernized steel production constantly increases, require steel rolling production to today that high speed, the serialization mode of production develop, the demand of flying shearing machine constantly increases, and naturally and understandably the design and the workmanship of flying shearing machine is had higher requirement.Owing to be at the volley rolled piece implement to be sheared, therefore, to the kinetic characteristic of flying shearing machine, being quick on the draw property, action accuracy, and each side such as work stability and reliability, all must have very high requirement, existing flying shearing machine are difficult to satisfy above-mentioned requirements.

Summary of the invention

Technical problem to be solved in the utility model is to provide a kind of and be quick on the draw, move accurately, the stable and reliable operation flying shearing machine.

The technical scheme that the utility model adopted is: a kind of flying shearing machine, described flying shearing machine are arranged on after the middle milling train, before the finishing mill; Described flying shearing machine comprise reducing gear, cutting mechanism and driving motor, and described driving motor provides power for reducing gear and cutting mechanism, and described reducing gear and cutting mechanism are combined as a whole.

Described reducing gear is three gear reductions, comprising: high speed shaft; Described cutting mechanism comprises, double shear head, following output shaft and last output shaft; Gears engaged on the following output shaft of described high speed shaft and flying shear mechanism, described lower shaft gear and the engagement of last output shaft gear drive haircut rotation up and down.

Described high speed shaft is a gear shaft.

Described haircut is provided with the double shear head with narrow cutting edge and the wide cutting edge of double shear head; Described double shear head is provided with breach with narrow cutting edge.

The beneficial effects of the utility model are: because cutting mechanism is that double shear head and reducing gear and cutting mechanism are an integral body, simple and compact for structure, the mechanism's number of components and parts and the weight that participate in shearing motion have been reduced, to reduce the inertia value of cutting mechanism motion, the variable quantity of minimizing speed, improve the sensitive stability and the positioning accuracy of flying shearing machine cutting mechanism, thereby improve the shearing quality of flying shearing machine.When the cataclasm rolled piece of needs, the double shear head is worked simultaneously with narrow cutting edge and wide cutting edge, and cataclasm length reduces and reduced the cataclasm time, has improved cataclasm effect, more effectively prevents to fly the steel accident.

Description of drawings

Fig. 1 is the flying shearing machine floor map;

Fig. 2 is flying shearing machine haircut schematic diagrames up and down.

Among the figure:

1. 3. times output shafts of driving motor 2. high speed shafts

4. go up output shaft 5. cutting mechanisms 6. rolled pieces

7. narrow cutting edge 8. wide cutting edges

The specific embodiment

Below in conjunction with the drawings and specific embodiments flying shearing machine are described in further detail:

As depicted in figs. 1 and 2, during the utility model flying shearing machine are arranged on after the milling train, before the finishing mill, this setting can make rolled piece carry out cutting head cutting tail before entering finishing mill, once finishing mill can be cataclasm with rolled piece when accident occurring, prevents to fly the generation of steel accident; Described flying shearing machine comprise reducing gear, cutting mechanism 5 and driving motor 1, described reducing gear and cutting mechanism are combined as a whole, compact conformation can reduce mechanism's number of components and parts and the weight that participates in shearing motion, to reduce the inertia value of cutting mechanism motion, the variable quantity of minimizing speed, improve the sensitive stability and the positioning accuracy of flying shearing machine cutting mechanism, thereby improve the shearing quality of flying shearing machine.Described reducing gear is three gear reductions, comprising: high speed shaft 2, and described high speed shaft 2 is a gear shaft; Described cutting mechanism comprises double shear head or simple shear head, following output shaft 3 and last output shaft 4, and the flying shear shear surface is smooth, and shearing moment is big; The output shaft of driving motor 1 and high speed shaft 2 are connected transferring power by crown gear coupling, gears engaged on the following output shaft 3 of described high speed shaft 2 and flying shear mechanism, can realize slowing down, described lower shaft gear 3 drives haircut rotation up and down to shear workpiece with last output shaft 4 gears engaged.Described haircut be provided with the double shear head with narrow cutting edge 7 and double shear head with wide cutting edge 8; (crop or back-end crop) rolled piece 6 enters normal share zone by special use swing guide groove guiding during operate as normal, this moment, the double shear head did not have shear blade owing to be provided with breach with narrow cutting edge 7 in normal share zone, do not carry out shearing work, have only the double shear head to carry out normal shearing work with wide cutting edge 8.When having an accident, by special use swing guide groove rolled piece is put to cataclasm zone, this moment, the double shear head was worked with wide cutting edge 8 with the double shear head simultaneously with narrow cutting edge 7, half that so cataclasm waste material length is reduced to the simple shear head also reduced the cataclasm time, improve cataclasm effect, more effectively prevented to fly the steel accident.

It is 40 * 40～55 * 55 rolled piece that these flying shearing machine are particularly suitable for the shearing section, its shear rate≤11m/s.

It is worthy of note; protection domain of the present utility model is not limited to above-mentioned instantiation mode, and according to basic fundamental design of the present utility model, those of ordinary skills need not through creative work; the embodiment that can associate all belongs to protection domain of the present utility model.

Claims

1. flying shearing machine is characterized in that: during described flying shearing machine are arranged on after the milling train, before the finishing mill; Described flying shearing machine comprise reducing gear, cutting mechanism (5) and driving motor (1), and described driving motor (1) provides power for reducing gear and cutting mechanism, and described reducing gear and cutting mechanism are combined as a whole.

2. flying shearing machine according to claim 1 is characterized in that: described reducing gear is three gear reductions, comprising: high speed shaft (2); Described cutting mechanism (5) comprises, double shear head, following output shaft (3) and last output shaft (4); Gears engaged on the following output shaft (3) of described high speed shaft (2) and flying shear mechanism, haircut rotation about gear (4) engagement on described output shaft (3) down and the last output shaft drives.

3. flying shearing machine according to claim 2 is characterized in that: described high speed shaft (2) is a gear shaft.

4. flying shearing machine according to claim 2 is characterized in that: described haircut be provided with the double shear head with narrow cutting edge 7 and double shear head with wide cutting edge (8); Described double shear head is provided with breach with narrow cutting edge (7).