CN207372035U

CN207372035U - A kind of radially adjustable y-type rolling mill

Info

Publication number: CN207372035U
Application number: CN201720874055.4U
Authority: CN
Inventors: 王南; 赵春江; 崔国华; 马良
Original assignee: Hebei University of Engineering
Current assignee: Hebei University of Engineering
Priority date: 2017-07-19
Filing date: 2017-07-19
Publication date: 2018-05-18
Anticipated expiration: 2027-07-19

Abstract

The utility model discloses a kind of radially adjustable y-type rolling mills, it includes sequentially connected rack, three cross couplings and three groups of roller assemblies, cross coupling includes left side leg, crossbeam and right side leg, the first dovetails are both provided on the end face of left side leg and right side leg, the first dovetail groove is offered on crossbeam, an opening is offered on left side leg, roller assembly includes mandrel, sleeve and roll, bearing block group and bevel gear set, sleeve is socketed in the periphery of mandrel by a feather key, in bearing block group bearing hole is both provided in left shaft holder and right axle bearing, second dovetail groove and the second dovetails, the right side leg of cross coupling is connected after passing through opening by the first dovetails and the second dovetail groove, the first dovetail groove on crossbeam and the second dovetails are connected simultaneously.The utility model is intersected using cross coupling by the way of connection, and sleeve can be slided compared with mandrel, makes single cross coupling that can adjust three rolls simultaneously, and then realizes quick, the effective adjusting for rolling hole aperture.

Description

A kind of radially adjustable y-type rolling mill

Technical field

The utility model is related to Mill Technology field, more particularly to a kind of radially adjustable y-type rolling mill.

Background technology

Equipped with 3 roll mandrels in the rack of existing y-type rolling mill, they, perpendicular to rolling centerline, are in 120 ° each other Arrangement, the type milling train have rolling stock even tissue, relatively good to the encapsulation of rolling stock, and it is high, crisp can to roll intensity Property the metal material being difficult to conventional mill roll forming such as big, and have the characteristics that rolling workpiece surface geometry is with high accuracy, It is widely used in a series of material productions with higher rolling difficulty such as special steel, titanium alloy, magnesium alloy, tungsten-molybdenum alloy In.

The vestibule that the y-type rolling mill applied at present is surrounded by three rolls is fixed, the i.e. radial position of roll mostly It is fixed, because y-type rolling mill roll change is changed using complete machine, therefore will not generally carries out radiai adjustment, this, which may result in, works as roll surface During abrasion, vestibule becomes larger, so as to cause becoming large-sized for stocking.When needing to carry out the radial direction adjustment of roll, often use Driven separately is carried out to realize to roll, but the machine construction of roll driven separately is especially complex and huge；And roll is concentrated The machine of unified transmission is although simple in structure, size is small, it is consistent to ensure roll rotational speed, reduces investment outlay, but utilizes and concentrate Transmission can be become difficult to achieve due to bevel gear meshing relation.

There is the three-roller Y shaped milling train for radially adjusting structure in the prior art, being substantially all needs to install special balancing machine Structure, and combination gear case need to be equipped with so that complicated and be difficult to meet the requirements such as stable drive, reliable operation, compact-sized； Simultaneously there is also larger limitation on adjustment amount and finished product type, and also result in cost of investment increase.

Utility model content

The purpose of this utility model be to provide it is a kind of it is simple in structure, manufacture is at low cost, radiai adjustment is efficient, radiai adjustment The good radially adjustable y-type rolling mill of effect so that complicated present in existing radially adjustable y-type rolling mill, the of high cost, footpath of manufacture It cannot be guaranteed that the problem of gear engagement causes radiai adjustment effect poor is able in the process to inefficiency and radiai adjustment is adjusted It solves.

To achieve the above object, the utility model provides following scheme：The utility model provides a kind of radially adjustable Y types Milling train, including sequentially connected rack from outside to inside, three cross couplings and three groups of roller assemblies, each cross coupling with every group The roller assembly coordinates installation in pairs, is arranged at an angle described in each pair between cross coupling and the roller assembly, described each The cross coupling is connected by respective corresponding screw-down with the rack, and the cross coupling includes being sequentially connected Left side leg, crossbeam and right side leg, be both provided with the first dovetails, the horizontal stroke on the end face of the left side leg and the right side leg The first dovetail groove is relatively set on the medial surface of beam, the opening of a perforation is offered on the side wall of the left side leg, it is described to roll Roll assembly includes mandrel, sleeve and the roll being fixedly mounted on the sleeve, bearing block group and bevel gear set, the sleeve Be socketed in the periphery of the mandrel by a feather key, the bearing block group include being arranged on the left shaft holder of the roll both sides and Bearing hole, the second dovetail groove and the second dovetails, the friendship are both provided in right axle bearing, the left shaft holder and right axle bearing The right side leg of fork beam passes through first dovetails and the left side after passing through the opening of the left side leg of the adjacent cross coupling The second dovetail groove on bearing block is connected, while first dovetail groove on the crossbeam is matched somebody with somebody with second dovetails Connection is closed, the bevel gear set includes two bevel gears for being arranged on the sleeve both ends, between the adjacent roller assembly It is engaged and connected by the bevel gear.

Preferably, the angle between cross coupling described in each pair and the roller assembly is 120 °.

Preferably, the rack is triangle rack, and the triangle rack includes three sequentially connected frames of head and the tail.

Preferably, the screw-down is housing screw, and the housing screw is arranged on the middle part of the frame, the pressure It is connected between lower screw and the middle part of the frame by a bearing.

Preferably, the core axle hole of a perforation is provided on the side wall of the right side leg of the cross coupling, the core axle hole is used for Support the mandrel.

Preferably, a bearing, the axis are provided in the bearing hole in the left shaft holder or the right axle bearing It holds and is connected with the sleeve；Second dovetails are arranged far from the left shaft holder of the bearing hole or the right axle On the end face of bearing；Second dovetail groove is arranged on the left shaft holder or described between the end face and the bearing hole On the side wall of right axle bearing.

Preferably, also set up on the medial surface of the crossbeam there are two recessing groove, the recessing groove is located at what is be oppositely arranged The both sides of two first dovetail grooves.

Preferably, the left side leg and the right side leg include leg and foot, and the opening is arranged on the left side The leg of leg, the core axle hole are located at the leg of the right side leg, and first dovetails are arranged on the left side leg and institute is right In the foot end of side leg.

Preferably, the leg of the left side leg and the right side leg is perpendicular with the crossbeam, the left side leg and institute The foot of right side leg is stated with respective leg in 0 °~90 ° angles, the foot of the left side leg or institute's right side leg with it is respective Angle between leg is identical.

Preferably, the foot of the left side leg and the right axle bearing are perpendicular, foot and the left axle of institute's right side leg Bearing is perpendicular.

The utility model achieves following advantageous effect compared with the prior art：

1st, in radially adjustable y-type rolling mill provided by the utility model by the way of the connection that intersects so that three friendships Fork beam successively get up by interconnection, when single cross coupling performs upper pressure or pressure work, passes through the second dovetail on bearing block Slot and the second dovetails on the mutual cooperation of the first dovetails being connected on cross coupling and bearing block and the on crossbeam One dovetail groove cooperates so that and single cross coupling can be pressed or be depressed movement compared with other two cross coupling, and Ensure that other two cross coupling is motionless, and can carry out sliding this characteristic compared with mandrel with reference to sleeve so that single intersection Beam can drive three rolls to be moved during the motion, so realize y-type rolling mill roll hole (by three pairs of cross couplings with Roll in roller assembly is formed) adjusting in aperture.

2nd, can carry out sliding this compared with mandrel by sleeve in radially adjustable y-type rolling mill provided by the utility model Characteristic allows adjacent each pair cross coupling to keep synchronous with the bevel gear in roller assembly while adjusting and rolling hole aperture Engagement, avoiding to roll hole aperture in the prior art and engage with bevel gear cannot synchronously carry out causing that radiai adjustment efficiency is low, radial direction The problem of regulating effect is poor；And during radiai adjustment, gear engagement will not conjugate, and improve gear uses the longevity Life.

3rd, the adjusting mechanism of radially adjustable y-type rolling mill provided by the utility model is simple, compact-sized, greatly reduces and sets Standby manufacture, maintenance and use cost.

4th, it is online after achievable roll wear or after roll dislocation in radially adjustable y-type rolling mill provided by the utility model Adjustment, reduces roll change operation, improves productivity.

Description of the drawings

It in order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only the utility model Some embodiments, for those of ordinary skill in the art, without having to pay creative labor, can also basis These attached drawings obtain other attached drawings.

Fig. 1 is the overall structure diagram of the radially adjustable y-type rolling mill of the utility model；

Fig. 2 is the structure diagram of cross coupling in the radially adjustable y-type rolling mill of the utility model；

Fig. 3 is left shaft holder or the structure diagram of right axle bearing in the radially adjustable y-type rolling mill of the utility model；

Fig. 4 is that (bevel gear and left shaft holder are similarly with right axle bearing for bevel gear in the radially adjustable y-type rolling mill of the utility model Installation) scheme of installation；

Wherein, 1- racks, 2- cross couplings, 3- screw-downs, 4- left shaft holders, 5- right axles bearing, 6- rolls, 7- mandrels, 8- bevel gears, 9- extensions, 10- crossbeams, 11- legs, 12- foots, the first dovetail grooves of 13-, the first dovetails of 14-, 15- screw threads Hole, 16- openings, 17- core axle holes, 18- bearings, the second dovetail grooves of 19-, the second dovetails of 20-, 21- sleeves, 22- feather keys, 23- Recessing groove.

Specific embodiment

The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out It clearly and completely describes, it is clear that the described embodiments are only a part of the embodiments of the utility model rather than whole Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work All other embodiments obtained shall fall within the protection scope of the present invention.

To enable the above-mentioned purpose of the utility model, feature and advantage more obvious understandable, below in conjunction with the accompanying drawings and have Body embodiment is described in further detail the utility model.

As shown in Figs 1-4, the utility model provides a kind of radially adjustable y-type rolling mill, and the utility model provides a kind of radial direction Adjustable y-type rolling mill, including sequentially connected 1, three cross coupling 2 of rack and three groups of roller assemblies from outside to inside, each friendship Fork beam 2 coordinates installation in pairs with roller assembly described in every group, angled cloth between cross coupling and the roller assembly described in each pair It puts, each cross coupling 2 is connected by respective corresponding screw-down 3 with the rack 1, the cross coupling 2 include sequentially connected left side leg, crossbeam 10 and right side leg, are both provided on the end face of the left side leg and the right side leg First dovetails 14 are relatively set with the first dovetail groove 13 on the medial surface of the crossbeam 10, are opened on the side wall of the left side leg Opening 16 equipped with a perforation, the roller assembly include mandrel 7, sleeve 21 and are fixedly mounted on rolling on the sleeve 21 Roller 6, bearing block group and bevel gear set, the sleeve 21 are socketed in the periphery of the mandrel 7, the bearing block by a feather key 22 Group includes being arranged on the left shaft holder 4 and right axle bearing 5 of 6 both sides of roll, on the left shaft holder 4 and right axle bearing 5 Bearing hole, the second dovetail groove 19 and the second dovetails 20 are provided with, the right side leg of the cross coupling 2 passes through the adjacent cross coupling After the opening 16 of 2 left side leg, matched somebody with somebody by first dovetails 14 and the second dovetail groove 19 on the left shaft holder 4 Connection is closed, while first dovetail groove 13 on the crossbeam 10 is connected with second dovetails 20, the cone tooth Wheel group includes two bevel gears 8 for being arranged on 21 both ends of sleeve, passes through the cone tooth between the adjacent roller assembly 8 engagement connection of wheel.

Three pairs of cross couplings and any pair of the cross coupling and roller assembly in roller assembly in radially adjustable y-type rolling mill Roll 6 carry out radiai adjustment when, press first and the screw-down being connected to cross coupling with cross coupling in roller assembly 2 3, screw-down 3 drives cross coupling 2 to move down, and the crossbeam 10 of cross coupling 2 promotes roll during cross coupling 2 moves down Left shaft holder 4, right axle bearing 5 in component are moved down (since left shaft holder 4, right axle bearing 5 are by the second dovetails 20 It is installed together with the first dovetail groove 13 mutual cooperation on crossbeam 10 so that left shaft holder 4, right axle bearing 5 can be in crossbeams 10 are moved), left shaft holder 4, right axle bearing 5 promote mandrel 7, sleeve 21 and roll 6, cone on sleeve 21 again Gear 8 moves down, that is, completes the radiai adjustment to roll 6；Wherein, the bevel gear 8 mounted on 21 both ends of sleeve is to moving down Cause other two pairs of cross couplings while dynamic and (i.e. above-mentioned any pair of cross coupling in roller assembly with pacifying therewith in roller assembly Bevel gear 8 mounted in 21 both ends of sleeve) two bevel gears 8 being meshed, carry out downward axial direction also along respective mandrel 7 Movement, since bevel gear 8 is fixedly mounted on sleeve 21, and sleeve 21 is to be socketed in the outside of mandrel 7 by feather key 22, i.e., Sleeve 21 can be done compared with mandrel 7 it is a certain range of slide axially, so bevel gear 8 move when will with moving sleeve 21 along Mandrel 7 carries out the movement of downward axial direction；At the same time, any pair cross coupling and the cross coupling 2 in roller assembly to During lower movement, by the left shaft holder 4 for promoting the adjacent cross coupling 2 in one side, along mandrel 7, (this mandrel 7 is adjacent to right side leg Left shaft holder 4 and the mandrel 7 of right axle bearing 5 are installed in cross coupling 2) downward axial direction movement is carried out, left side leg will push away Along mandrel 7, (this mandrel 7 is to be equipped with 4 He of left shaft holder in adjacent cross coupling 2 to the right axle bearing 5 of the adjacent cross coupling 2 of dynamic opposite side The mandrel 7 of right axle bearing 5) carry out downward axial direction movement.It similarly operates, list can also be realized to other two rolls 6 Only radiai adjustment.

The utility model carries middle by the way of the connection that intersects so that and three cross couplings 2 successively get up by interconnection, When single cross coupling 2 performs pressure upper or pressure work, by the second dovetail groove 19 on bearing block (referring to left and right bearing block) with In the second dovetails 20 and crossbeam 10 in the mutual cooperation for the first dovetails 14 on cross coupling 2 that are connected and bearing block First dovetail groove 13 cooperates so that single cross coupling 2 can be pressed or depressed fortune compared with other two cross coupling 2 It is dynamic, and ensure that other two cross coupling 2 is motionless, and can carry out sliding this characteristic compared with mandrel 7 with reference to sleeve 21 so that Single cross coupling 2 can drive three rolls 6 to be moved during the motion, and then realize y-type rolling mill rolls hole (by three Roll 6 in cross coupling and roller assembly is formed) adjusting in aperture.It can be compared with core by sleeve 21 in the utility model Axis 7 carries out sliding this characteristic, causes adjacent each pair cross coupling and the cone in roller assembly while adjusting and rolling hole aperture Gear 8 can keep synchro-meshing, and avoiding to roll hole aperture in the prior art and engage with bevel gear 8 cannot synchronously carry out causing footpath To the problem of adjusting efficiency is low, radiai adjustment effect is poor；And during radiai adjustment, gear engagement will not conjugate, Improve the service life of gear.

Angle in the utility model between cross coupling described in each pair and the roller assembly is 120 °.

Rack 1 described in the utility model is triangle rack, and the triangle rack is sequentially connected including three head and the tail Frame.

Screw-down 3 described in the utility model is housing screw, and the housing screw is arranged on the middle part of the frame, It is connected between the middle part of the housing screw and the frame by a bearing 18.Wherein, one end of housing screw passes through bearing After 18 are fixed in the middle part of frame, the other end of housing screw is arranged on 15 phase of threaded hole on 2 crossbeam 10 of cross coupling by one Connection, movement is pressed or is depressed by rotating housing screw cross coupling 2.

The core axle hole 17 of a perforation, the core are provided on the side wall of the right side leg of cross coupling 2 described in the utility model Axis hole 17 is used to support the mandrel 7.When radially adjustable y-type rolling mill at work, it is only necessary to will wherein any pair cross coupling with Mandrel 7 extends close to the one end of right side leg in roller assembly, the extension 9 of mandrel 7 through after core axle hole 17 with driving motor It is connected, simultaneously because engaging connection by bevel gear 8 between three pairs of cross couplings and three mandrels 7 in roller assembly, i.e., When driving motor drives connected mandrel 7 to rotate, other two pairs of cross couplings and the mandrel 7 in roller assembly are also therewith Accordingly rotated.

A bearing is provided in left shaft holder 4 described in the utility model or the bearing hole in the right axle bearing 5 18, the bearing 18 is connected with the sleeve 21；Second dovetails 20 are arranged far from the left side of the bearing hole On the end face of bearing block 4 or the right axle bearing 5；Second dovetail groove 19 is arranged between the end face and the bearing hole The left shaft holder 4 or the right axle bearing 5 side wall on.

It is also set up on the medial surface of crossbeam 10 described in the utility model there are two recessing groove 23, the recessing groove 23 is located at The both sides for two first dovetail grooves 13 being oppositely arranged.

Left side leg described in the utility model and the right side leg include leg 11 and leg 12, and the opening 16 is set In the leg of the left side leg 11, the core axle hole 17 is located at the leg 11 of the right side leg, and first dovetails 14 are set On 12 end face of leg of the left side leg and institute's right side leg.

The leg 11 of left side leg described in the utility model and the right side leg is perpendicular with the crossbeam 10, the left side The leg 12 of side leg and the right side leg with respective leg 11 in 0 °~90 ° angles, the left side leg or institute's right side leg Angle between leg 12 and respective leg 11 is identical.

The leg 12 of left side leg described in the utility model and the right axle bearing 5 are perpendicular, the leg 12 of institute's right side leg It is perpendicular with the left shaft holder 4.

Specific case is applied in the utility model to be set forth the principle and embodiment of the utility model, more than The explanation of embodiment is only intended to help the method and its core concept for understanding the utility model；Meanwhile for the one of this field As technical staff, according to the thought of the utility model, in specific embodiments and applications there will be changes.To sum up Described, this specification content should not be construed as the limitation to the utility model.

Claims

1. a kind of radially adjustable y-type rolling mill, which is characterized in that including sequentially connected rack from outside to inside, three cross couplings and Three groups of roller assemblies, each cross coupling coordinate installation in pairs with roller assembly described in every group, cross coupling described in each pair and institute It states and is arranged at an angle between roller assembly, each cross coupling passes through each corresponding screw-down and the machine Frame is connected, and the cross coupling includes sequentially connected left side leg, crossbeam and right side leg, the left side leg and the right side leg End face on be both provided with the first dovetails, the first dovetail groove, the left side leg are relatively set on the medial surface of the crossbeam Side wall on offer the opening of a perforation, the roller assembly includes mandrel, sleeve and is fixedly mounted on the sleeve Roll, bearing block group and bevel gear set, the sleeve is socketed in the periphery of the mandrel, the bearing block group by a feather key Including being arranged on the left shaft holder of the roll both sides and right axle bearing, axis is both provided in the left shaft holder and right axle bearing Bearing bore, the second dovetail groove and the second dovetails, the right side leg of the cross coupling pass through the institute of the left side leg of the adjacent cross coupling It is connected after stating opening by the second dovetail groove in first dovetails and the left shaft holder, while on the crossbeam First dovetail groove and second dovetails be connected, the bevel gear set is arranged on the sleeve two including two The bevel gear of end passes through bevel gear engagement connection between the adjacent roller assembly.

2. radially adjustable y-type rolling mill according to claim 1, which is characterized in that cross coupling described in each pair and the roll Angle between component is 120 °.

3. radially adjustable y-type rolling mill according to claim 1, which is characterized in that the rack is triangle rack, described Triangle rack includes three sequentially connected frames of head and the tail.

4. radially adjustable y-type rolling mill according to claim 3, which is characterized in that the screw-down be housing screw, institute The middle part that housing screw is arranged on the frame is stated, is connected between the housing screw and the middle part of the frame by a bearing It connects.

5. radially adjustable y-type rolling mill according to claim 1, which is characterized in that the side wall of the right side leg of the cross coupling On be provided with the core axle hole of a perforation, the core axle hole is used to support the mandrel.

6. radially adjustable y-type rolling mill according to claim 1, which is characterized in that the left shaft holder or the right bearing A bearing is provided in the bearing hole on seat, the bearing is connected with the sleeve；Second dovetails are arranged on On the left shaft holder of the separate bearing hole or the end face of the right axle bearing；Second dovetail groove is arranged on the end The left shaft holder between face and the bearing hole or on the side wall of the right axle bearing.

7. radially adjustable y-type rolling mill according to claim 1, which is characterized in that also set up on the medial surface of the crossbeam There are two recessing groove, the recessing groove is located at the both sides for two first dovetail grooves being oppositely arranged.

8. radially adjustable y-type rolling mill according to claim 5, which is characterized in that the left side leg and the right side leg are equal Including leg and foot, described be open is arranged on the leg of the left side leg, and the core axle hole is located at the leg of the right side leg, First dovetails are arranged in the foot end of the left side leg and institute's right side leg.

9. radially adjustable y-type rolling mill according to claim 8, which is characterized in that the left side leg and the right side leg Leg is perpendicular with the crossbeam, and the foot of the left side leg and the right side leg presss from both sides with respective leg in 0 °~90 ° The foot of angle, the left side leg or institute's right side leg is identical with the angle between respective leg.

10. radially adjustable y-type rolling mill according to claim 9, which is characterized in that the foot of the left side leg and the right side Bearing block is perpendicular, and the foot of institute's right side leg and the left shaft holder are perpendicular.