CN205869073U - Roll box device is rolled to zero damping - Google Patents

Abstract

The utility model provides a roll box device is rolled to zero damping, belong to the rolling technical field of hot -rolling seamless pipe, roller device is installed with rolling to the characteristic between roll box and the rolling -mill housing, gyro wheel among the roller device passes through the roller shaft and installs in idler wheel supporting frame, preloaded bolt is fixed in in the idler wheel supporting frame, a spring, backing plate and nut pretightening install in proper order on spring preloaded bolt, roller device integral erection is in rolling the roll box device, it is fixed by the clamp plate, it installs through hexagon socket head cap screw and contacts with roller device on rolling the roll box device to roll the roll box slide, does does the gyro wheel roll surface exceed and roll above the roll box slide 0.1 after the installation 2mm. The advantage becomes rolling friction with the sliding friction who rolls between roll box and the frame, and the quick accuracy of the online developments of roll realizes the zero damping when feeding.

Description

A kind of zero damping roll-box device

Technical field

This utility model belongs to hot rolled seamless steel tube rolling technical field, is specifically related to a kind of zero damping roll-box device.

Background technology

In prior art slitless tube mill, include between roll-box and frame contact surface, side joint contacting surface and under connect Contacting surface is all to be contacted with pressure roller oil cylinder by the slide plate on roll-box, and this structure causes and produces the biggest rubbing between contact surface Wiping power, have impact on the requirement that roll online feed accuracy height, rapid dynamic response speed and dynamic response time are short.

Summary of the invention

The present utility model provides a kind of zero damping roll-box device, and can realize relative motion between roll-box and frame is Zero damping.

The present utility model is achieved through the following technical solutions, and as shown in Figure 1, 2, it is characterized in that filling at roll-box Putting 1 and be separately installed with roller devices with rolling-mill housing 2 touching position, roller devices structure is identical everywhere, as shown in Fig. 6 ~ Fig. 9, Now as a example by roll-box device upper right roller devices, its structure is that left and right pretension bolt 15 is installed on rolling wheel support frame 12 left side In right bolt hole, left and right compression spring 17 and left and right backing plate 18 are sleeved on the bolt of left and right, respectively by left and right pre-load nut 16 , left and right roller 12 is arranged in rolling wheel support frame 11 groove by roller shaft, by above-mentioned rollers device integral installation at roll-box In the draw-in groove of device, compressed by pressing plate 1, pressing plate 2 10 respectively, roll-box slide plate 5 be fixed on roll-box device 1 with Above-mentioned rollers device contacts, and the roll surface of roller 13 exceeds roll-box slide plate 5 0.1-2mm above.

Advantage of the present utility model and effect thereof:

(1) sliding friction between roll-box and frame is become rolling friction, roll the most accurately feeding online Shi Shixian zero damping.

(2) change specification off-line adjust mill rolls when value, press-roller device lifts, under the support force effect of roller, roll Case apparatus is become rolling friction from traditional sliding friction on frame slide plate, and guiding mechanism power and energy consumption are greatly reduced.

Accompanying drawing explanation

Fig. 1. roll-box device described in the utility model assembles schematic diagram in frame

Fig. 2. A-A sectional view in Fig. 1

Fig. 3. B-B sectional view in Fig. 2

Fig. 4. the half-twist of roll device right view shown in Fig. 3

Fig. 5. roll-box device axonometric chart

Fig. 6. partial enlarged drawing at K in Fig. 4

Fig. 7. the top view of Fig. 6

Fig. 8. C-C sectional view in Fig. 6

Fig. 9. roller devices axonometric chart

In figure

Pressure roller oil cylinder 4 frame slide plate one in 1 roll-box device 2 rolling-mill housing 3

5 roll-box slide plate 6 roll device 7 side pressure roller oil cylinder 8 frame slide plates two

9 pressing plate 1 pressing plate 2 11 frame slide plate 3 12 rolling wheel support frames

13 roller 14 roller shaft 15 pretension bolt 16 pre-load nuts

17 compression spring 18 backing plate 19 axle sleeve 20 roll spacing feed fine-adjustment devices.

Detailed description of the invention

As shown in Fig. 1-9, a kind of zero damping roll-box device described in the utility model, at rolling-mill housing 2 and roll-box Device 1 touching position is separately installed with roller devices, is pressed on roller devices at pressure roller oil cylinder effect lower bearing bracket slide plate, and roller fills Cushioning effect is played equipped with compression spring in putting.Roll-box device 1 is installed in frame 2, and upper pressure roller oil cylinder 3, side pressure roller oil cylinder 7 are executed Add downwards with along the power in roll line direction, it is ensured that roll will not be tumbled during tube rolling, bob and along rolling line side To play, each pressure roller oil cylinder is applied to roll-box device with certain pressure, under pressure roll-box device side, on Compression deformation of the spring drag in face and roller devices installed below offsets pressure and the weight of roll-box itself of oil cylinder, rolls Distance between roller case slide plate and frame slide plate one, frame slide plate two, frame slide plate three is close to zero, under the effect of lubricating oil Realize zero damping.When upper pressure roller oil cylinder does not apply downward pressure, the off-load roller devices that roll-box device is installed below Under the effect of middle initial tension of spring, roll-box device is lifted, and between frame slide plate three, produce gap.Change specification off-line to adjust Mill rolls is when value, and pressure roller oil cylinder lifts, under the support force effect of roller, and the friction on frame slide plate three of the roll-box device Power becomes rolling friction, and such guiding mechanism power and energy consumption are greatly reduced.

Claims (1)

1. a zero damping roll-box device, it is characterised in that levying is to contact with rolling-mill housing (2) at roll-box device (1) Place is separately installed with roller devices, and roller devices structure is identical everywhere, with roll-box device (1) upper right roller devices is now Example, its structure is that left and right pretension bolt (15) is installed in the bolt hole of left and right, rolling wheel support frame (12) bottom, left and right compression spring And left and right backing plate (18) is sleeved on left and right pretension bolt (15) (17), respectively by left and right nut (16) pretension, left and right roller (13) it is arranged in rolling wheel support frame (12) groove by roller shaft, by above-mentioned rollers device integral installation at roll-box device (1) in draw-in groove, being compressed by pressing plate one, pressing plate two (9,10) respectively, roll-box slide plate (5) is fixed on roll-box device (1) above contacting with above-mentioned rollers device, the roll surface of roller (13) exceeds roll-box slide plate (5) 0.1 mm above-2mm.