CN2520230Y

CN2520230Y - Longitudinal sheet steel shearing apparatus

Info

Publication number: CN2520230Y
Application number: CN 01270262
Authority: CN
Inventors: 彭新根; 崔连兴; 李泽武; 杨建立
Original assignee: Shougang Corp
Current assignee: Shougang Corp
Priority date: 2001-11-06
Filing date: 2001-11-06
Publication date: 2002-11-13
Anticipated expiration: 2011-11-06

Abstract

The utility model relates to a steel plate longitudinal shearing equipment, which connects a rotary cutter (22), a scrap cutter (16) and a side guide (10) to an integral, simplifies a shogging actuating mechanism, allows the cutter bodies to swing, leads rotary cutter heads (13), (14) to form a small angle with the steel plate central line, reduces friction between the cutter heads and the steel plate, extends service life of the cutter heads, and enhances cutting quality. Drum-type scrap cutter cutting edges (12), (15) are obliquely arranged with the rotation, and top surfaces of the cutting edges are cambered surfaces, which can lightens impact load during cutting process. The box bodies of the rotary cutter (22) and the scrap cutter (16) employ split structures, and the cutter body shogging employs feed screw type. Cap nuts divided into mother nuts and auxiliary nuts are oiled with hydraulic oil which avoids clearance between the cap nuts and the feed screw and impact to the cap nuts and the feed screw during cutting process. The mechanical synchronous shaft (7) of the rotary cutter (22) employs types of a universal joint and a joint tongue, which can overcome axiality deviation caused by processing and installing, and meets requirements of great telescopic stroke.

Description

A kind of steel plate longitudinal shear equipment

Technical field

The utility model relates to the steel plate longitudinal shear equipment of metallurgy industry, is specially adapted to vertical side cut of steel plate.

Background technology

The swarf of domestic each cut deal steel rolling mill mainly contains following several mode at present: the one, and the flame cutting of rolling-cut double side shear (about its maximum shear steel plate thickness 50mm) mating part special heavy plate; The 2nd, gate shears (about its maximum shear steel plate thickness 40mm); The 3rd, circle shear (about its maximum shear steel plate thickness 25mm).It is huge that first kind of mode invested, the production efficiency height, and year shearing displacement surpasses 600,000 tons, is applicable to newly-built super-thick steel plate steel rolling mill.Second way shear efficiency is low, 200,000 tons of year shearing displacement less thaies, and shearing quality is relatively poor, and impression and cut channel phenomenon appear in limit portion, belong to the steel plate shearing mode that is eliminated.The third mode domestic old-fashioned circle shear maximum shear steel plate thickness at present is about 25mm, can not satisfy the swarf requirement of cut deal steel rolling mill fully.

Summary of the invention

The purpose of this utility model will accomplish that exactly the shear steel plate thickness reaches about 30mm, can satisfy the shearing of the finished product of cut deal steel rolling mill 80 percent, improves shearing quality and efficient.

In order to achieve the above object, the utility model comprises fixedly to be cut body 2, moves and to cut body 6, cut body Traverse Displacement Unit 9, move and cut body fluid and press locking device 5, middle support roller device 4, circle shear 22, scrap cutter 16 and side guide and guard 10 fuse, form and cut body, it is traversing to cut body with a cover transmission device 1 driving.Reduced Traverse Displacement Unit, simultaneously overall structure can be born the enormous impact load that is produced when shearing the thick steel plate of 30mm.Cutting body is split type structure, comprises circle shear upper box 21, scrap cutter upper box 11 and lower box 18, and this structure is easy to install and maintain.Two cut body all can be pivot swinging around the bearing pin 17 that is cemented in respectively on firm banking 3 and the movable base 8, pendulum angle is adjusted in 0 °～1 ° scope and is fixing, make disc

shear cutter head

19,20 become a low-angle (0 °～1 °) with the steel plate center line, alleviate the friction of

cutterhead

19,20 and steel plate, prolonged the life-span of cutterhead 19,20.The mechanical synchronization axle 7 of circle shear 21 has adopted universal joint 34 and feather key pattern, can overcome processing and the coaxiality deviation that brings is installed, and the axle 35 of band keyway can pass in the Universal-head 34 of band key, has satisfied the requirement of big flexible stroke.The feed screw nut of cutting the Traverse Displacement Unit 9 of body has adopted the pattern of major-minor nut, mother nut 38 is connected with secondary nut 37 usefulness straight end-face keys 39 and feeds hydraulic oil, has eliminated the gap of two nuts and leading screw 36, has avoided the impact in the shear history, improve the life-span of nut, guaranteed the quality of shearing.Scrap cutter 16 is a drum-type, and its upper scissor blade 12 is in tilted layout for 14 one-tenth with following cutterhead with upper tool pan 13 respectively with lower scissor blade 15, and the blade end face is a cambered surface, the blade top line is meshing with each other up and down, improve the shear ability of scrap cutter, reduced impact load, improved equipment life.

Description of drawings

Fig. 1 is the front view and the vertical view of a kind of steel plate longitudinal shear of the utility model equipment;

Fig. 2 is the side view of a kind of steel plate longitudinal shear of the utility model equipment;

Fig. 3 is the structure chart of cutting circle shear part in the body of a kind of steel plate longitudinal shear of the utility model equipment;

Fig. 4 is that cutting in the body of a kind of steel plate longitudinal shear of the utility model equipment is broken

The structure chart of part is cut on the limit;

Fig. 5 is the mechanical synchronization axle construction schematic diagram of a kind of steel plate longitudinal shear of the utility model equipment;

Fig. 6 is the major-minor nut structure schematic diagram of the lead screw transmission of cutting the body Traverse Displacement Unit of a kind of steel plate longitudinal shear of the utility model equipment;

Fig. 7 is the edge structure schematic diagram of the scrap cutter of a kind of steel plate longitudinal shear of the utility model equipment;

The specific embodiment

As shown in Figure 1 and Figure 2, fixedly cut body 2 and be fixed on the firm banking 3, connect with main transmission 1.Move and to cut body 6 and connect with main transmission 1 and all be fixed on the movable base 8, movable base 8 can be traversing on firm banking 3.Cut circle shear 22 is arranged on the body, scrap cutter 16 and guide device 10.Traditional circle shear, scrap cutter and guide device for satisfying the requirement of shearing the different in width steel plate, need three cover Traverse Displacement Units as three independent sectors, and can not guarantee that the three position is consistent all the time.Simultaneously, when its scrap cutter is sheared, hold and can't stand the enormous impact load that is produced when shearing slab.And that the utility model is made circle shear, scrap cutter and guide device is as a whole, has reduced Traverse Displacement Unit, and simultaneously, overall structure can be born the enormous impact load that is produced when shearing the 30mm slab.The casing of cutting body comprises circle shear upper box 21, scrap cutter upper box 11 and lower box 18, and this structure is easy to install and maintain, and can shorten the repair time.Two cut body can be around bearing pin 17 swings that are cemented in respectively on firm banking 3 and the movable base 8, make disc

shear cutter head

19,20 become a low-angle (0 °～1 °) with the steel plate center line, alleviated the friction of cutterhead 18,19 and steel plate, prolonged the life-span of

cutterhead

19,20, simultaneously, the side force that produces in the shearing, steel plate is evened up, avoid edges of boards to adhere to cutterhead, the steel plate limit portion that shears out is neat, has improved shearing quality.Guide device 10 bootable steel plates enter circle shear 22, and the slitter edge that circle shear 22 is cut imports scrap cutter 16, and the steel plate after guaranteeing simultaneously to shear is not swung.Traverse Displacement Unit 9 drives movable bases 8 and moves, reach desired location after, with hydraulic lock system 5 movable base 8 is locked on the firm banking 3, guaranteed stablizing of shear history.

As shown in Figure 3, last eccentric bushing 23 and following eccentric bushing 24 all have gear 25, and are meshing with each other, and by cutterhead registration adjusting device 26, eccentric bushing 23 and following eccentric bushing 24 are rotated in opposite directions, thereby can adjust the registration of cutterhead.Last eccentric bushing 23 and following eccentric bushing 24 are connected with screw thread pair 27 respectively, cutterhead lash adjusting device 26 (two covers) drives the screw thread pair of going up on eccentric bushing 23 and the following eccentric bushing 24 27 respectively, make eccentric bushing 23 and following eccentric bushing 24 do axially-movable, thereby can adjust the gap between upper tool pan and the following cutterhead.

As shown in Figure 4, following cutter shaft 29 is the power shaft of main transmission, and the gear on the last cutter shaft 30 adopts major-minor gear 31, eliminates the gap of gears engaged, can avoid the impact in the shear history.Be connected with screw thread pair 32 on the last cutter shaft 30,, drive screw thread pair 32, make cutter shaft 30 do axially-movable, thereby can adjust the gap between upper scissor blade 12 and the lower scissor blade 15 by lash adjusting device 33.

As shown in Figure 5, the telescopic section of mechanical synchronization axle 7 adopts universal joint 34, can overcome processing and the coaxiality deviation that brings is installed, and the axle 35 of band keyway can pass in the Universal-head 34 of band key, has satisfied the requirement of big flexible stroke (2200mm).The flexible stroke of common universal-joint spindle is all little, if strengthen its flexible stroke, certainly will cause the processing difficulties of spline pair and the lengthening of universal-joint spindle, causes the imbalance when rotating at a high speed.

As shown in Figure 6, secondary nut 37 connects with mother nut 38 usefulness straight end-face keys 39, and embed mutually, form a cylinder body, behind the feeding hydraulic oil, mother nut 38, secondary nut 37 move (fine motion) in opposite directions, eliminated the gap of two nuts and leading screw 36, avoid the impact in the shear history, in the life-span of having improved nut, guaranteed the quality of shearing.

As shown in Figure 7, scrap cutter upper scissor blade 12, lower scissor blade 15 are separately fixed on scrap cutter upper tool pan 13, the following cutterhead 14,

blade

12,15 and

cutterhead

13,14 axis are at an angle, and

blade

12,15 top lines are a curve along its length, in the scrap cutter shear history, upper knife edge 12, following blade 15 top lines are meshing with each other as helical gear, have improved the shear ability of scrap cutter like this, reduce impact load, improved equipment life.

Claims

1. steel plate longitudinal shear equipment, comprise and fixedly cut body (2), move and to cut body (6), cut body Traverse Displacement Unit (9), move and cut body fluid and press locking device (5), middle support roller device (4), it is characterized in that circle shear (22), scrap cutter (16) and side guide and guard (10) fuse, form and cut body, it is traversing to cut body with cover transmission device (a 1) driving.

2. steel plate longitudinal shear equipment according to claim 1 is characterized in that: cutting body is split type structure, comprises circle shear upper box (21), scrap cutter upper box (11) and lower box (18).

3. steel plate longitudinal shear equipment according to claim 1, it is characterized in that two, to cut body can be pivot swinging around the bearing pin (17) that is cemented in respectively on firm banking (3) and the movable base (8) all, pendulum angle is adjusted in 0 °～1 ° scope and is fixing.

4. steel plate longitudinal shear equipment according to claim 1 is characterized in that: the mechanical synchronization axle (7) of circle shear (22) has adopted universal joint (34) and feather key pattern.

5. steel plate longitudinal shear equipment according to claim 1, the feed screw nut that it is characterized in that cutting the Traverse Displacement Unit (9) of body has adopted the pattern of major-minor nut, and mother nut (38) is connected with straight end-face key (39) with secondary nut (37) and feeds hydraulic oil.

6. steel plate longitudinal shear equipment according to claim 1, it is characterized in that scrap cutter (16) is drum-type, its upper scissor blade (12) becomes to be in tilted layout with following cutterhead (14) with upper tool pan (13) respectively with lower scissor blade (15), and the blade end face is cambered surface, and the blade top line is meshing with each other up and down.