CN217889068U - Novel horizontal two-roller mill - Google Patents

Abstract

The utility model discloses a novel two horizontal rolling mills, arrange from top to bottom and mutually support for two rolling parts, it cooperatees with the suppression part of top and to push down the top that the subassembly is located the suppression part, the both ends of compression roller subassembly cooperate with transmission side subassembly and operation side subassembly respectively, first integral bearing inner race cover is located the primary shaft end and is close to compression roller main part one end, a plurality of first bearing that have are established to the outside cover of first integral bearing inner race, the space ring, the inner race raceway, thrust bearing and lock nut cover are located the primary shaft end and are kept away from compression roller main part one end, gu fixed ring and outer lane raceway cover locate thrust bearing's outside, outer lane raceway one end meets with first bearing one end, the utility model discloses rational in infrastructure, bearing capacity is strong, the axiality deviation tolerance is high, the precision retentivity is strong, with this fault rate that reduces equipment, increase of service life and precision retentivity cycle, reduce the maintenance frequency and reduce the maintenance cost.

Description

Novel horizontal two-roller mill

Technical Field

The utility model relates to a rolling mill technical field specifically is a novel two rolling mills of level.

Background

The existing active horizontal two-roller rolling mill needs to transmit on a roller main shaft, so that an axial and radial complete positioning scheme of a roller shaft is mainly adopted by adopting paired ball bearings or paired roller bearings or other combined configurations in a positioning and pre-tightening mode, the bearing is completely fixed in the scheme, and the following defects are caused; 2. because the relative positions of the left bearing seat and the right bearing seat of the horizontal two-roller mill are not fixed, the bearings are seriously abraded after left and right non-coaxial shafts appear under the processing and assembling errors, and the acceleration precision is invalid; 3. because the clearance is eliminated by combining and pre-tightening the paired bearings, once the bearings are worn during operation, the clearance is continuously enlarged, the precision is gradually deteriorated, and the precision is ensured by irregularly repeating the pre-tightening action in the use process, so that an improved technology is urgently needed to solve the problems in the prior art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel two roll mills of level, bearing capacity is strong, the axiality deviation tolerance is high, the precision maintenance ability is strong to this fault rate, increase of service life and the precision maintenance cycle that reduces equipment, reduction maintenance frequency and reduction maintenance cost, with the problem of proposing in solving above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a novel horizontal two-roller rolling mill comprises a pressing component, rolling components and a rack component, wherein two rolling components and one pressing component are arranged in the rack component, the two rolling components are arranged up and down and are matched with each other, the pressing component is positioned above the pressing component and is matched with the pressing component above the pressing component, the rolling components comprise a pressing roller component, a transmission side component and an operation side component, and two ends of the pressing roller component are respectively matched with the transmission side component and the operation side component;

the compression roller assembly comprises a first shaft end, a second shaft end and a compression roller main body, wherein the first shaft end and the second shaft end are coaxially arranged at two ends of the compression roller main body respectively;

the transmission side assembly comprises a locking nut, a spacer ring, a first end cover, an inner ring raceway, a fixing ring, an outer ring raceway, a thrust bearing, a first needle roller bearing, a first integral bearing inner ring, a first bearing seat and a second end cover, wherein the first integral bearing inner ring is sleeved at one end, close to the compression roller main body, of the first shaft end;

the operating side assembly comprises a second integral bearing inner ring, a second needle bearing, a third end cover, a fourth end cover and a second bearing seat, the second integral bearing inner ring is sleeved at the second shaft end, the second needle bearing is sleeved outside the second integral bearing, the second bearing seat is arranged outside the second needle bearing, and two ends of the second bearing seat are connected with the third end cover and the fourth end cover through bolts respectively.

Preferably, the utility model provides a pair of novel two rolling mills of level, wherein, it adopts pneumatic or hydraulic mode drive to push down the subassembly, it links to each other with the upper surface of the first bearing frame and the second bearing frame of the rolling part in top to push down the subassembly.

Preferably, the utility model provides a pair of novel two roll mills of level, wherein, space ring, solid fixed ring and outer lane raceway are spacing through first end cover.

Preferably, the utility model provides a pair of novel two rolling mills of level, wherein, first bearing passes through second end cover, primary shaft bearing seat and spacer ring spacing.

Preferably, the utility model provides a pair of novel two roll mill of level, wherein, second bearing passes through third end cover, fourth end cover and second bearing frame spacingly.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) The axial load and the radial load are borne by independent bearings, so that respective abrasion is not interfered with each other, the main load in the rolling process is the radial load, the axial load is small, and therefore the axial limiting bearing is long in service life and durable in precision.

(2) After the needle bearing is worn, the roll shaft and the bearing seat generate radial displacement, at the moment, the plane bearing can adjust the radial position of the plane bearing according to the offset of the rotation center, interference force cannot be generated in the radial direction, and the rotation precision and the smoothness of the roll shaft are improved.

(3) Because the needle roller bearing does not need pre-tightening to ensure the precision, the rotation precision of the roller mainly comes from the processing precision of the roller, and the good rolling precision can be still maintained after long-term use.

(4) After the needle roller bearing is used, the bearing is small in size, so that a thicker shaft diameter can be used on the premise of the same outer diameter of the bearing, and the load capacity of the roller shaft is greatly improved.

(5) Compared with the mode of grinding the roll shaft by using an integral bearing inner ring and the current mode of adopting a standard bearing with an inner ring, the method reduces the number of parts, thereby reducing the fit tolerance and further improving the rotation precision of the roll shaft.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic cross-sectional view of a rolled part;

FIG. 3 is an enlarged view of a portion of the drive side assembly;

fig. 4 is a front view of the rolled part.

In the figure: the rolling device comprises a pressing assembly 1, a rolling part 2, a rack assembly 3, a press roll assembly 4, a first shaft end 401, a second shaft end 402, a press roll main body 403, a lock nut 5, a spacer ring 6, a first end cover 7, an inner ring raceway 8, a fixing ring 9, an outer ring raceway 10, a thrust bearing 11, a first needle bearing 12, a first integrated bearing inner ring 13, a first bearing seat 14, a second end cover 15, a second integrated bearing inner ring 16, a second needle bearing 17, a third end cover 18, a fourth end cover 19 and a second bearing seat 20.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the embodiments of the present invention and the accompanying drawings, and obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention;

it should be noted that, in the description of the present invention, it is to be noted that the terms "inside", "outside", "upper", "lower", "both sides", "one end", "the other end", "left", "right", and the like indicate the directions or positional relationships based on the directions or positional relationships shown in the drawings, and are only for convenience of description and simplification of the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a novel horizontal two-roller rolling mill comprises a pressing component 1, rolling components 2 and a rack component 3, wherein two rolling components 2 and one pressing component 1 are arranged inside the rack component 3, the two rolling components 2 are arranged up and down and are matched with each other, the pressing component 1 is positioned above the pressing components and is matched with the pressing components above the pressing components, the rolling components 2 comprise a compression roller component 4, a transmission side component and an operation side component, and two ends of the compression roller component 4 are respectively matched with the transmission side component and the operation side component;

the press roll assembly 4 comprises a first shaft end 401, a second shaft end 402 and a press roll main body 403, wherein the first shaft end 401 and the second shaft end 402 are respectively and coaxially arranged at two ends of the press roll main body 403;

the transmission side assembly comprises a lock nut 5, a spacer ring 6, a first end cover 7, an inner ring raceway 8, a fixing ring 9, an outer ring raceway 10, a thrust bearing 11, a first needle bearing 12, a first integral bearing inner ring 13, a first bearing seat 14 and a second end cover 15, wherein the first integral bearing inner ring 13 is sleeved at one end, close to the compression roller main body 403, of the first shaft end 401, a plurality of first needle bearings 12 are sleeved outside the first integral bearing inner ring 13, the spacer ring 6, the inner ring raceway 8, the thrust bearing 11 and the lock nut 5 are sleeved at one end, far away from the compression roller main body 403, of the first shaft end 401, the thrust bearing 11 is arranged in the inner ring raceway 8, the fixing ring 9 and the outer ring raceway 10 are sleeved outside the thrust bearing 11, the fixing ring 9 and the outer ring raceway 10 are provided with two ends which are respectively arranged at two sides of the outer ring raceway 10, the spacer ring 6 is connected with the fixing ring 9, the lock nut 5 is arranged outside the spacer ring 6, one end of the fixing ring 9 is connected with one end of the first bearing 12, the spacer ring 6, the fixing ring 9 and the outer ring raceway 10 are respectively connected with the first end cover 7 through the first bearing outer ring raceway 12, the first end cover 15 and the second bearing cover 15, the first bearing cover 15 and the second bearing seat 15 are respectively connected with the outer ring raceway 14;

the operation side assembly comprises a second integral bearing inner ring 16, a second needle roller bearing 17, a third end cover 18, a fourth end cover 19 and a second bearing seat 20, the second integral bearing inner ring 16 is sleeved on the second shaft end 402, the second needle roller bearing 17 is sleeved outside the second integral bearing, the second bearing seat 20 is arranged outside the second needle roller bearing 17, two ends of the second bearing seat 20 are respectively connected with the third end cover 18 and the fourth end cover 19 through bolts, the pressing assembly 1 is driven in a pneumatic or hydraulic mode, the pressing assembly 1 is connected with the upper surfaces of the first bearing seat 14 and the second bearing seat 20 of the upper rolling part 2, and the second needle roller bearing 17 is limited through the third end cover 18, the fourth end cover 19 and the second bearing seat 20.

The use method and the principle are as follows: the rolling component is the core component of the whole horizontal two-roller rolling mill, and is mainly rolled by two pressing roller main bodies 403 arranged up and down. The first end cover 7, the fixing ring 9, the outer ring raceway 10, the first needle bearing 12, the first bearing seat 14 and the second end cover 15 form an outer ring connection of a bearing set, and the axial positioning of the bearing seats is realized through the relative compression of the first end cover 7 and the second end cover 15; the end faces of the fixing rings 9 are in contact with the end faces of the first needle roller bearings 12, the outer ring roller path 10 is arranged between the fixing rings 9, the perpendicularity of the end faces of the first needle roller bearings 12 and the rotation center of the first needle roller bearings is transmitted to the outer ring roller path 10, and the end faces of the two sides of the outer ring roller path 10 are used as other assembling and positioning references, so that the vertical accuracy of the rotation face of the thrust bearing 11 and the rotation center of the first needle roller bearings 12 can be improved. The roll component, the spacer ring 6, the inner ring raceway 8 and the thrust bearing 11 are axially fixed with the bearing seat through tightening of the lock nut 5, and the axial fixing reference at the moment is the two side end faces of the outer ring raceway 10, so that a shaft system consisting of the roll component, the spacer ring 6, the inner ring raceway 8 and the thrust bearing 11, and the bearing seat system consisting of the first end cover 7, the fixing ring 9, the outer ring raceway 10, the first needle roller bearing 12, the first bearing seat 14 and the second end cover 15 can realize higher vertical precision. The first integral bearing inner ring 13 is of a self-made integral structure, and a standard bearing inner ring of a manufacturer is not adopted, so that the problem of end face contact sealing when a plurality of inner rings are combined is solved, and higher rotation precision can be realized by integrally matching and grinding the first integral bearing inner ring 13 and a roll assembly after assembly. By the contact of parts of the operation side assembly, the roll assembly to the third end cover 18 and the fourth end cover 19 form a whole, so that the transmission side adopts a floating structure, and the inner ring is not fixed, so that the part second bearing seat 20 and the part roll assembly can axially and freely move, the disassembly convenience during maintenance is improved, and the phenomenon of component locking or accelerated bearing abrasion is avoided under the condition that the roll assembly expands and extends due to heat after rolling and temperature rise. The axial positioning of the whole assembly is realized through the thrust bearing 11, the rotary motion is ensured through the second needle bearing 17 in the radial direction but the radial positioning is not carried out, and because the thrust bearing 11 does not have the radial positioning while realizing the axial positioning, the roll assembly and the second needle bearing 17 generate the relative axis deviation and then move along with the abrasion after the second needle bearing 17 is abraded, the roll assembly can still rotate along the axis of the roll assembly after the abrasion, and the limitation of an external radial positioning part is avoided. The first needle bearing 12 and the thrust bearing 11 are combined in a bearing mode, the first needle bearing 12 is only responsible for rotation, the thrust bearing 11 is responsible for bearing positioning, and no positioning part exists in the radial direction; the fixing ring 9, the outer ring raceway 10 and the first needle bearing 12 are in split structure, so that the whole structure is convenient to mount and dismount under the condition of ensuring the verticality; the axial free structure of the operation side assembly improves the assembling and disassembling convenience of the equipment.

The details of the present invention are well known to those skilled in the art.

Finally, it is to be noted that: although the present invention has been described in detail with reference to the embodiments, those skilled in the art will understand that the technical solutions of the present invention can be modified and replaced with other solutions without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.

Claims (5)

1. A novel horizontal two-roller mill is characterized in that: the rolling device comprises a pressing component (1), rolling components (2) and a rack component (3), wherein two rolling components (2) and one pressing component (1) are arranged in the rack component (3), the two rolling components (2) are arranged up and down and are matched with each other, the pressing component (1) is positioned above the pressing component and is matched with the pressing component above the pressing component, the rolling components (2) comprise a pressing roll component (4), a transmission side component and an operation side component, and two ends of the pressing roll component (4) are respectively matched with the transmission side component and the operation side component;

the compression roller assembly (4) comprises a first shaft end (401), a second shaft end (402) and a compression roller main body (403), wherein the first shaft end (401) and the second shaft end (402) are coaxially arranged at two ends of the compression roller main body (403) respectively;

the transmission side assembly comprises a lock nut (5), a spacer ring (6), a first end cover (7), an inner ring raceway (8), a fixing ring (9), an outer ring raceway (10), a thrust bearing (11), a first needle bearing (12), a first integral bearing inner ring (13), a first bearing seat (14) and a second end cover (15), wherein the first integral bearing inner ring (13) is sleeved at one end, close to the compression roller main body (403), of a first shaft end (401), a plurality of first needle bearings (12) are sleeved outside the first integral bearing inner ring (13), the spacer ring (6), the inner ring raceway (8), the thrust bearing (11) and the lock nut (5) are sleeved at one end, far away from the compression roller main body (403), of the first shaft end (401), the thrust bearing (11) is arranged in the inner ring raceway (8), the fixing ring (9) and the outer ring raceway (10) are sleeved outside the thrust bearing (11), the fixing ring (9) is provided with two fixing rings (9) which are respectively arranged at two sides of the outer ring raceway (10), the spacer ring (6) is connected with the first needle bearing (9), one end of the first bearing (6), and one end of the fixing ring (12) is connected with one end of the first needle bearing (6), and the fixing ring (9), A first end cover (7) is sleeved outside the fixing ring (9) and the outer ring raceway (10), a first bearing seat (14) and a second end cover (15) are sleeved outside the first needle bearing (12), and two ends of the first bearing seat (14) are respectively connected with the first end cover (7) and the second end cover (15) through bolts;

the operation side assembly comprises a second integral bearing inner ring (16), a second needle roller bearing (17), a third end cover (18), a fourth end cover (19) and a second bearing seat (20), the second integral bearing inner ring (16) is sleeved on the second shaft end (402), the second needle roller bearing (17) is sleeved outside the second integral bearing, the second bearing seat (20) is arranged outside the second needle roller bearing (17), and two ends of the second bearing seat (20) are connected with the third end cover (18) and the fourth end cover (19) through bolts respectively.

2. The new horizontal two high mill according to claim 1, characterized in that: the pressing assembly (1) is driven in a pneumatic or hydraulic mode, and the pressing assembly (1) is connected with the upper surfaces of a first bearing seat (14) and a second bearing seat (20) of an upper rolling part (2).

3. The new horizontal two high mill according to claim 1, characterized in that: the space ring (6), the fixing ring (9) and the outer ring raceway (10) are limited through the first end cover (7).

4. The new horizontal two high mill according to claim 1, characterized in that: the first needle bearing (12) is limited by the second end cover (15), the first bearing seat (14) and the space ring (6).

5. The new horizontal two high mill according to claim 1, characterized in that: the second needle roller bearing (17) is limited by a third end cover (18), a fourth end cover (19) and a second bearing seat (20).

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