CN2253259Y

CN2253259Y - Moving cold saw

Info

Publication number: CN2253259Y
Application number: CN 96225210
Authority: CN
Inventors: 巴福和
Original assignee: Angang Steel Co Ltd
Current assignee: Angang Steel Co Ltd
Priority date: 1996-01-22
Filing date: 1996-01-22
Publication date: 1997-04-30
Anticipated expiration: 2006-01-22

Abstract

The utility model provides a moving cold saw used for cutting steel to length, which is mainly composed of a saw seat, a saw bench, a saw cutting machine, and a saw feeding hydraulic system. Two flat supporting rollers on one side of the original cold saw and a flat slide plate are converted into a structural style that a V-shaped convex supporting roller is fitted with a V-shaped guiding rail. Four side compression rollers are cancelled. The problem that a cold roller is deflective and vibratory in running is solved. The utility model has the advantages of simple structure, stable running, the improvement of finishing ratio, etc.

Description

Portable cold saw

The utility model relates to a kind of mobile cutting metal material, the particularly cold saw of scale cutting steel.

In steel industry, the user of steel often needs scale delivery, but steel not all are isometric also in the operation of rolling, and this just need come the rolling steel that form are cut with cold saw, makes it isometric.At present, the portable cold saw that satisfies rolling mill practice is mainly by saw carriage, buck, sawing machine with advance to saw hydraulic system and formed, respectively there is the roller that lifts of two vertical arrangements the both sides of saw carriage, each lifts roller by two seat supports, the following position relative with lifting roller of buck both sides respectively is embedded with a flat runner with bolting, each flat runner all lifts the roll surface straight line and contacts with its pairing two, the hydraulic cylinder body that advances to saw in the hydraulic system is fixed on the saw carriage, the cylinder bar is connected with buck by hinge, and the front portion of buck is equipped with sawing machine.Driving buck that sawing machine moves forward and backward and be at stroke is under the hydraulic cylinder of 2m promotes, and is mounted on four rollings on the saw carriage and lifts roller and support and carry out.Because flat runner is that plane and straight line contact with lifting between the roller, be offset about the buck that occurs when lifting roller and swing of no forcely the cold saw sawing, thereby saw blade up-down vibration and left and right sides shift phenomenon can appear inevitably.Although the both sides of cold saw respectively be equipped with two be pressed in be used for above the buck controlling cold saw in running up-down vibration on pressure roller and the both sides of buck one side respectively be equipped with two be used for controlling cold saw in running about the side pressure roller of skew swing, but do not solve the vibration and the sideslip problem of saw blade.After tested, its running deviation value is 20～40mm/m in sawing process, and the bob amount is 3～4mm, makes the steel of cutting plagiocephaly often occur, and its slope can't guarantee the quality of scale requirement up to more than the 40mn/m.In addition, because the saw blade sideslip, in cutting steel process, often cause the main shaft bearing fever, gear tooth breakage falls tooth, the saw blade fracture, scraps (consuming more than 120 in every month), the fly out generation of accidents such as hurting sb.'s feelings of saw blade fragmentation, and what influence was produced normally carries out.

The purpose of this utility model is to provide a kind of portable cold saw that can eliminate saw blade vibration and deviation phenomenon.

The purpose of this utility model is to realize like this, this movable type cold saw is by saw carriage, buck, sawing machine and advance to saw hydraulic system and formed, one side of saw carriage has the roller that lifts of two vertical arrangements, each lifts roller by two seat supports, be embedded with a flat runner with bolting below buck one side relative with lifting roller, this flat runner lifts the roll surface straight line and contacts with two; The opposite side of saw carriage has two protruding carrying rollers of vertically arranging of V-type, the protruding carrying roller of each V-type is by two seat supports, be embedded with a V-type rail below buck one side relative, coincide mutually between this V-type rail and two protruding carrying rollers of V-type with bolting with the protruding carrying roller of V-type.The hydraulic cylinder body that advances to saw in the hydraulic system is fixed on the saw carriage, and the cylinder bar is connected with buck by hinge, and the front portion of buck is equipped with sawing machine, and buck both sides top respectively has two its bearings to be positioned at last pressure roller on the saw carriage.

The utility model makes the structure that the protruding carrying roller of V-type and V-type rail match into because two of saw carriage one side are lifted roller and flat runner, not only increased the contact-making surface of carrying roller and guide rail, but also increased the restraining force that buck is swung, make buck do the linear reciprocation operation, solved the sideslip problem of saw blade in sawing process according to trapped orbit.After tested, the running deviation value in sawing process is reduced to below the 10mm/m, and the slope of sawing plagiocephaly is reduced to below the 10mm/m, and the sawing product percent of pass has brought up to 100% by original 50%.In addition, the very little side pressure roller of four effects owing to having cancelled in the original cold saw has also reduced maintenance capacity.Also have, because the even running of cold saw, eliminated the fly out generation of accidents such as hurting sb.'s feelings of saw blade fracture, saw blade fragmentation, the attrition of saw blade only was 50 in every month, and what guaranteed to produce carries out smoothly, has improved operating efficiency, has saved fund.

The utility model is described in further detail below in conjunction with accompanying drawing.

Fig. 1 is a front view of the present utility model;

Fig. 2 is a cutaway view of the present utility model;

Fig. 3 is the cutaway view of the another kind of structure of the utility model.

As shown in Figure 1, 2, the utility model is by saw carriage 9, buck 6, sawing machine 3 and advance to saw hydraulic system 10 and formed, one side of saw carriage 9 have two vertically arrange lift roller 12, each lifts roller 12 by two seat supports, be embedded with a flat runner 13 with bolting below buck 6 one sides relative with lifting roller 12, this flat runner 13 lifts roller 12 plane and straight lines and contacts with two; The opposite side of saw carriage 9 has two protruding carrying rollers of vertically arranging 4 of V-type, the protruding carrying roller 4 of each V-type is by two seat supports, be embedded with a V-type rail 11 below buck 6 one sides relative, coincide mutually between this V-type rail 11 and two protruding carrying rollers 4 of V-type with bolting with the protruding carrying roller of V-type 4.The hydraulic cylinder body 14 that advances to saw in the hydraulic system 10 is fixed on the saw carriage 9, and the cylinder bar is connected with buck 6 by hinge, and the front portion of buck 6 is equipped with sawing machine 3, and sawing machine 3 is made up of saw blade cover 1, saw blade 2, chuck 8 and motor 7.Buck 6 both sides top respectively has two its bearings to be positioned at last pressure roller 5 on the saw carriage 9.In addition, V-type rail 11 is 120 ° with the angle of the protruding carrying roller 4 of V-type.

As shown in Figure 3, portable cold saw of the present utility model, with two protruding carrying roller 4 corresponding saw carriages 9 of V-type on, respectively have one and be convenient to the groove that the protruding carrying roller of V-type 4 is installed, and do not come in contact between protruding carrying roller 4 of V-type and the saw carriage 9.The utility model should be in level with buck and be as the criterion and adjust the absolute altitude that lifts roller 12 and the protruding carrying roller 4 of V-type when install adjusting.

In addition, the utility model can also be by suitably increasing the rigidity that goes up pressure roller 5, be about to go up the means such as platen thickening of the increasing of bracing frame base, gusset thickening, diameter of axle overstriking and the saw carriage 9 of pressure roller 5, more effectively solve the up and down problem of vibration of cold saw in running.

Claims

1, a kind of portable cold saw that is used for scale cutting steel, mainly by saw carriage (9), buck (6), sawing machine (3) with advance to saw hydraulic system (10) and formed, one side of saw carriage (9) have two vertically arrange lift roller (12), each lifts roller (12) by two seat supports, be embedded with a flat runner with bolting (13) below buck (6) one sides relative with lifting roller (12), this flat runner (13) lifts roller (12) plane and straight line and contacts with two; The hydraulic cylinder body (14) that advances to saw in the hydraulic system (10) is fixed on the saw carriage (9), the cylinder bar is connected with buck (6) by hinge, the front portion of buck (6) is equipped with sawing machine (3), buck (6) both sides top respectively has two its bearings to be positioned at last pressure roller (5) on the saw carriage (9), the opposite side that it is characterized in that saw carriage (9) has two protruding carrying rollers of vertically arranging of V-type (4), the protruding carrying roller of each V-type (4) is by two seat supports, be embedded with a V-type rail (11) below buck (6) one sides relative, coincide mutually between this V-type rail (11) and two protruding carrying rollers 4 of V-type with bolting with the protruding carrying roller of V-type (4).

2, portable cold saw according to claim 1, it is characterized in that with two corresponding saw carriages of the protruding carrying roller of V-type (9) on, respectively have one and be convenient to the groove that the protruding carrying roller of V-type (4) is installed.