CN203184344U

CN203184344U - Five-roller tension machine

Info

Publication number: CN203184344U
Application number: CN 201320205053
Authority: CN
Inventors: 叶凡
Original assignee: Wuhan Iron and Steel Group Corp
Current assignee: Wuhan Iron and Steel Group Corp
Priority date: 2013-04-22
Filing date: 2013-04-22
Publication date: 2013-09-11
Anticipated expiration: 2023-04-22

Abstract

The utility model discloses a five-roller tension machine which comprises a base, a fixing support, a U-type base and a stretchy hydraulic machine, wherein the fixing support, the U-type base and the stretchy hydraulic machine are sequentially and fixedly arranged on the base. A movable support is arranged on the U-type base. The movable support is connected with a stretchy shaft of the stretchy hydraulic machine. Three rollers are assembled on the inner side of the fixing support, wherein the upper end of each roller is connected with the upper portion of the fixing support through a rolling bearing. Two rollers are assembled on the inner side of the movable support, wherein the upper end of each roller is connected with the upper portion of the movable support through a roller bearing. The lower ends of the rollers on the inner side of the fixing support are respectively connected with the lower portion of the fixing support through rolling bearings. The lower ends of the rollers on the inner side of the movable support are respectively connected with the lower portion of the movable support through rolling bearings. The five-roller tension machine is flexible in rotation of the rollers, easy to adjust and maintain and long in service life.

Description

Five-roll tensioner

Technical field

The utility model belongs to hot strip rolling device technique field, specifically refers to a kind of five-roll tensioner.

Background technology

Hot-strip batches when collecting, and needs the tension force of accommodation zone steel in coiling process, makes finished strip roll up tightly, turriform do not occur, and five-roll tensioner can play the effect of regulating strip tension.Simultaneously, five-roll tensioner the snake-like oscillation device can also be come out the band steel of S-shaped continuous bend stretching, flatten, namely play correcting.On the five-roll tensioner that present most of strip mill uses, be equipped with three road rolls at fixed support, be equipped with the twice roll at travel(l)ing rest, five road rolls all are connected with support by the rolling bearing that is located thereon end, and the lower end of roll is unsettled setting.The problem of Cun Zaiing is like this: extreme direction departed under five road rolls took place because of the top and bottom discontinuity easily when five-roll tensioner pressure rolling steel band, be " eight " font to roll gap, so not only make between steel band and the roll and friction fast to take place and make that roll barrel wearing and tearing aggravation, roll shorten service life, the plant maintenance workload is big, and, along with treating rolling steel band multi-sizeization, band steel at different-thickness, the tensile force of five-roll tensioner can not carry out accurate adjustment, and the product quality of generation is on the low side.Simultaneously, existing roll diameter of roller is too small to have only 180mm, big to turning cylinder pressure during pressure rolling, rotates dumbly, and roll is that 45 forging are made, and hardness is less than normal, weares and teares easily.

Summary of the invention

The technical problems to be solved in the utility model provides that a kind of roll rotation is regulated flexibly, easily and the five-roll tensioner of maintenance, long service life.

For achieving the above object, five-roll tensioner of the present utility model comprises pedestal and is fixedly installed on the fixed support on the pedestal, U-shaped base and flexible hydraulic press successively that described U-shaped base is provided with travel(l)ing rest; Described travel(l)ing rest is connected with the telescopic shaft of flexible hydraulic press;

Described fixed support inboard is equipped with three road rolls; Wherein the upper end of per pass roll is connected with described fixed support top by rolling bearing respectively; Described travel(l)ing rest inboard is equipped with the twice roll; Wherein the upper end of per pass roll is connected with described travel(l)ing rest top by rolling bearing respectively;

Its special character is: the per pass roll lower end of described fixed support inboard is connected with the fixed support bottom by rolling bearing respectively; The per pass roll lower end of described travel(l)ing rest inboard is connected with the travel(l)ing rest bottom by rolling bearing respectively.

Preferably, described travel(l)ing rest bottom and both sides are set with some sliding shoes, and the relevant position is provided with the sliding tray that is complementary with described sliding shoe on the described U-shaped base inner wall.

Further, the position that is connected with described travel(l)ing rest on the described telescopic shaft is provided with tension-adjusting gear, described tension-adjusting gear is made up of left-handed wire connection head, dextrorotation wire connection head and the regulating sleeve that is socketed in left-handed wire connection head, dextrorotation wire connection head outside, come the length of adjustment of tonicity adjusting device by rotating regulating sleeve, distance between adjustable and retractable axle and the travel(l)ing rest, thus realization is to the flexible modulation of five-roll tensioner crushing strength.

Further preferably, correspondence is positioned at U-shaped base and support bracket fastened position and is provided with the protruding key in location on the described pedestal, and described U-shaped base, fixed support bottom offer the groove suitable with the protruding key in described location.

Again further, the roller of described roll directly is 200mm.

Also further, described roll is formed by the 40Cr2MoV steel.

Useful technique effect of the present utility model is: by with the structure of five road rolls of tensioner by the cantilever design that only depends on top single shaft bearing to support, change the upper and lower into the Double bearing support support that bearing links to each other with support all is set, body of roll upper and lower side is stressed evenly, go slick, the belt steel surface line problem that having eliminated does not transduce because jockey pulley is stuck causes, jockey pulley service life is brought up to present more than two months by original one or two class; By nonadjustable connecting rod between hydraulic cylinder and the movable machine frame is transformed, change into by a left-handed silk joint, a dextrorotation silk joint is formed adjustable movable with regulating sleeve and is connected, and can be implemented in the course of hot rolling according to distance and pressure size between the different product needs adjustment of tonicity machine roll.By on the basis in Bolt Connection between travel(l)ing rest, fixed support and the base, increase the key location, prevent that effectively support is loosening.After the five-roll tensioner structure is optimized, hardness and the wearability of jockey pulley have increased, tensile force has increased and is easy to adjust, the body of roll goes slick, safeguard simple and conveniently, the belt steel surface line problem that having eliminated does not transduce because jockey pulley is stuck causes has prolonged jockey pulley service life, reduce the spare part expense, improved band ladle packing quality and product surface quality.

Description of drawings

Fig. 1 is the structural representation of the utility model five-roll tensioner.

Fig. 2 is A-A sectional view among Fig. 1.

Fig. 3 is B-B sectional view among Fig. 1.

Fig. 4 is the structural representation of tension-adjusting gear.

The specific embodiment

Below in conjunction with the drawings and specific embodiments the utility model five-roll tensioner is described in further detail.

Five-roll tensioner shown in the drawings comprises: pedestal 1 and be fixedly installed on fixed support 2, U-shaped base 3 and flexible hydraulic press 6 on the pedestal 1 successively, and U-shaped base 3 is provided with travel(l)ing rest 5; Travel(l)ing rest 5 is connected with the telescopic shaft 7 of flexible hydraulic press 6; Fixed support 2 inboards are equipped with three road rolls 4; Wherein the upper end of per pass roll 4 is connected with described fixed support 2 tops by rolling bearing respectively; Travel(l)ing rest 5 inboards are equipped with twice roll 4; Wherein the upper end of per pass roll 4 is connected with described travel(l)ing rest 5 tops by rolling bearing respectively; Per pass roll 4 lower ends of fixed support 2 inboards are connected with fixed support 2 bottoms by rolling bearing 8 respectively; Per pass roll 4 lower ends of travel(l)ing rest 5 inboards are connected with travel(l)ing rest 5 bottoms by rolling bearing 8 respectively.Travel(l)ing rest 5 bottoms and both sides are set with some sliding shoes 9, and the relevant position is provided with the sliding tray 10 that is complementary with described sliding shoe 9 on U-shaped base 3 inwalls, and travel(l)ing rest 5 can slide on U-shaped base 3 neatly like this; The position that is connected with travel(l)ing rest 5 on the telescopic shaft 7 is provided with tension-adjusting gear 11, tension-adjusting gear 11 is made up of left-handed wire connection 12, dextrorotation wire connection 13 and the regulating sleeve 14 that is socketed in left-handed wire connection 12, dextrorotation wire connection 13 outside, by adjustment of tonicity adjusting device 11, the distance between adjustable and retractable axle 7 and the travel(l)ing rest 5; Be provided with the protruding key 15 in location corresponding to the position of U-shaped base 3 and fixed support 2 on the pedestal 1, U-shaped base 3, fixed support 2 bottoms offer the groove 16 suitable with locating protruding key 15; The roller of roll 4 directly is 200mm, is formed by the 40Cr2MoV steel.

Claims

1. a five-roll tensioner comprises pedestal (1) and is fixedly installed on the fixed support (2) on the pedestal (1), U-shaped base (3) and flexible hydraulic press (6) successively, and described U-shaped base (3) is provided with travel(l)ing rest (5); Described travel(l)ing rest (5) is connected with the telescopic shaft (7) of flexible hydraulic press (6);

Described fixed support (2) inboard is equipped with three road rolls (4), and wherein the upper end of per pass roll (4) is connected with described fixed support (2) top by rolling bearing respectively; Described travel(l)ing rest (5) inboard is equipped with twice roll (4), and wherein the upper end of per pass roll (4) is connected with described travel(l)ing rest (5) top by rolling bearing respectively;

It is characterized in that: inboard per pass roll (4) lower end of described fixed support (2) is connected with fixed support (2) bottom by rolling bearing (8) respectively; Inboard per pass roll (4) lower end of described travel(l)ing rest (5) is connected with travel(l)ing rest (5) bottom by rolling bearing (8) respectively.

2. five-roll tensioner according to claim 1, it is characterized in that: described travel(l)ing rest (5) bottom and both sides are set with some sliding shoes (9), and the relevant position is provided with the sliding tray (10) that is complementary with described sliding shoe (9) on described U-shaped base (3) inwall.

3. five-roll tensioner according to claim 1 and 2, it is characterized in that: described telescopic shaft (7) is gone up the position that is connected with described travel(l)ing rest (5) and is provided with tension-adjusting gear (11), described tension-adjusting gear (11) is by left-handed wire connection head (12), dextrorotation wire connection head (13) and be socketed in left-handed wire connection head (12), the outside regulating sleeve (14) of dextrorotation wire connection head (13) is formed, by adjustment of tonicity adjusting device (11), the distance between adjustable and retractable axle (7) and the travel(l)ing rest (5).

4. five-roll tensioner according to claim 1 and 2, it is characterized in that: the position that the last correspondence of described pedestal (1) is positioned at U-shaped base (3) and fixed support (2) is provided with location protruding key (15), and described U-shaped base (3), fixed support (2) bottom offer the groove (16) suitable with the protruding key in described location (15).

5. five-roll tensioner according to claim 3, it is characterized in that: the position that the last correspondence of described pedestal (1) is positioned at U-shaped base (3) and fixed support (2) is provided with location protruding key (15), and described U-shaped base (3), fixed support (2) bottom offer the groove (16) suitable with the protruding key in described location (15).

6. five-roll tensioner according to claim 1 and 2 is characterized in that: the roller of described roll (4) directly is 200mm.

7. five-roll tensioner according to claim 3 is characterized in that: the roller of described roll (4) directly is 200mm.

8. five-roll tensioner according to claim 1 and 2, it is characterized in that: described roll (4) is formed by the 40Cr2MoV steel.

9. five-roll tensioner according to claim 3, it is characterized in that: described roll (4) is formed by the 40Cr2MoV steel.

10. five-roll tensioner according to claim 7, it is characterized in that: described roll (4) is formed by the 40Cr2MoV steel.