CN201500681U

CN201500681U - Two-roller rolling mill

Info

Publication number: CN201500681U
Application number: CN2009203105404U
Authority: CN
Inventors: 任凤章; 张旦闻; 李冬寒; 刘平; 赵士阳; 田保红; 贾淑果; 葛素卿
Original assignee: Henan University of Science and Technology
Current assignee: Henan University of Science and Technology
Priority date: 2009-09-16
Filing date: 2009-09-16
Publication date: 2010-06-09
Anticipated expiration: 2019-09-16

Abstract

The utility model relates to a two-roller rolling mill, comprising a motor, two rollers and a worm driven by the motor, wherein the worm is provided with two segments of tooth parts the lead angles of which have equal sizes and opposite directions. The same-side ends of the two rollers are respectively provided with a worm wheel, the two worm wheels are engaged with the corresponding tooth parts on the worm, and the helical angles of the two worm wheels have equal sizes and opposite directions. The worm with two segments of tooth parts is in engagement transmission with the worm wheels installed on roller shafts, so that the motion of the two rollers is realized. A transmission device is simple and reliable and has low cost and small occupied space, so that the size of the rolling mill is effectively reduced, and the producing cost of the rolling mill is also reduced.

Description

A kind of two-roller mill

Technical field

The utility model relates to a kind of two-roller mill, relates in particular to the small-sized two-roller mill in a kind of laboratory.

Background technology

When the laboratory development material, need sometimes a spot of material is rolled into sheet material.Because the restriction in funds and place, laboratory, the amount of adding rolling stock is less, therefore needs to install bar milk cheap, simple in structure.The double-roll rolling mill of selling on the market has two Hooks coupling universal couplings mostly, transmission device also needs reduction box, and the top roll screwdown gear is also comparatively complicated, be exactly that the simplest hand screw nut top roll of structure is adjusted structure, also comprise adjustment dish, handle, depress spiro rod and copper nut, its roll balance gear is also complicated, the simplest spring bascule of structure also not only comprises spring, also comprise pull bar, in addition, the milling train price of market sale is more expensive, size is bigger.In view of the rolling mill structure complexity of selling on the market, price height, be not suitable for the problem that the laboratory is used, application number is that 200820149161.7 Chinese patent specification discloses a kind of laboratory two-roller mill, the bottom roll axle of this two-roller mill links to each other by the end of connecting shaft cover with the lower tooth wheel shaft of gear machine, and the other end of lower tooth wheel shaft links to each other with motor.The rotating shaft that cogs of gear machine links to each other with the topping roll through-drive of bar milk by Hooks coupling universal coupling.Though that these innovation and creation have is simple in structure, size is less, the advantage of price less expensive, this milling train still has Hooks coupling universal coupling and gear machine, still has on the structure on the space, size of further simplification the space that further reduces is also arranged; In addition, the drive unit of these innovation and creation is an electromagnetic adjustable speed motor, and its price is higher, and coaxial a connection of roll of the output shaft of this electromagnetic adjustable speed motor and milling train, and the vibrations that milling train produces directly act on motor shaft, influence the life-span of motor.

The utility model content

The purpose of this utility model provides the small-sized two-roller mill in a kind of laboratory simple in structure, that size is little, cost is low.

For achieving the above object, the utility model adopts following technical scheme: a kind of two-roller mill, comprise motor and two rolls, described two-roller mill also comprises one by motor-driven worm screw, and this worm screw is provided with the tooth portion of two sections lead angle opposite sign but equal magnitude; The same side of described two rolls respectively is provided with a worm gear, each self-corresponding tooth portion engagement on two worm gears and the worm screw, the helical angle opposite sign but equal magnitude of two worm gears.

Described motor drives worm movement by belt driver.

Worm gear on described two rolls is arranged on the termination of roll separately.

The utility model has the transmission that is meshed with worm gear on being installed in roll mandrel of the worm screw of two sections tooth portions by one, realize the motion of two rolls, transmission device is simple and reliable, and cost is low, it is little to take up room, not only effectively reduce the size of milling train, and reduced the production cost of milling train.

The output shaft of motor of the present utility model is connected with worm-drive by belt driver, because the cushioning effect of belt driver, the impulsive force that acts on the motor is less, and the life-span of motor is higher.Further, the belt driver between motor and the worm screw can realize that motor arrives the deceleration of worm screw, and general non-buncher can meet the demands.

Description of drawings

Fig. 1 is the partial sectional view of the utility model front view;

Fig. 2 is the partial sectional view of the vertical view of Fig. 1;

Fig. 3 is the left view of Fig. 1.

The specific embodiment

At Fig. 1, Fig. 2, among Fig. 3, a kind of two-roller mill, comprise frame 18, topping roll 9 and bottom roll 10, one end of the axle of topping roll 9 is provided with worm gear 4, one end of the axle of bottom roll 10 is provided with down worm gear 2, last worm gear 4 and following worm gear 2 and have worm screw 13 engagements of two sections tooth portion, the axle of worm screw 13 is by bearing block and be arranged on bearings in the bearing block on frame 18, the lead angle opposite sign but equal magnitude of the two sections tooth portion of worm screw 13, the helical angle opposite sign but equal magnitude of last worm gear 4 and following worm gear 2 is also corresponding with the two sections tooth portion of bar 13, and worm screw 13 links to each other with motor 16 transmissions by belt driver 14.Belt driver 14 comprise the axle that is installed in worm screw 13 an end first belt pulley 20 and be installed in second belt pulley 15 on the output shaft of motor 16 and the belt of transmission between two belt pulleys.

Contact position with topping roll bearing block 1 on the frame 18 has chute, housing cap 6 be provided with act on topping roll bearing block 1 depress bolt 7, housing cap 6 with depress bolt 7 and be connected for screw thread screws, bolt 7 is provided with the locking nut 8 to bolt 7 lockings, is provided with spring 3 between the bearing block of upper and lower roll.

During work, motor 16 drives worm screw 13 by belt driver 14 and rotates.Worm screw 13 meshes with last worm gear 4 and following worm gear 2 simultaneously by its two sections tooth portion, because the lead angle opposite sign but equal magnitude of the two sections tooth portion of worm screw 13, the helical angle opposite sign but equal magnitude of last worm gear 4 and following worm gear 2 is also corresponding with the two sections tooth portion of bar 13, so worm screw 13 can drive worm gear 4, following worm gear 2 backward rotation, last worm gear 4, following worm gear 2 drive topping roll 9 and bottom roll 10 backward rotation respectively, realize rolling.

When adjusting the roll shop building gap, when topping roll 9 is adjusted downwards, backspin is depressed bolt 7, topping roll bearing block 1 moves down along the chute on the frame 18, thereby topping roll 9 and last worm gear 4 are moved down, topping roll 9 and last worm gear 4 have rotation in the moving process, adjust usefulness locking nut 8 lockings behind two

rollers

9 and 10 gaps.When transferring big two

rolls

9 and 10 gaps, depress on the bolt 7 and revolve, topping roll bearing block 1 moves upward under the effect of the elastic force of spring 3 between two roll bearing seat, thereby drive topping roll 9 and last worm gear 4 move upward, and topping roll 9 and last worm gear 4 have rotation in the motion process.

Claims

1. a two-roller mill comprises motor and two rolls, and it is characterized in that: described two-roller mill also comprises one by motor-driven worm screw, and this worm screw is provided with the tooth portion of two sections lead angle opposite sign but equal magnitude; The same side of described two rolls respectively is provided with a worm gear, each self-corresponding tooth portion engagement on two worm gears and the worm screw, the helical angle opposite sign but equal magnitude of two worm gears.

2. two-roller mill according to claim 1 is characterized in that: described motor drives worm movement by belt driver.

3. two-roller mill according to claim 1 and 2 is characterized in that: the worm gear on described two rolls is arranged on the termination of roll separately.