CN218283315U - Novel five roll-type squeeze roll frames of clod wash square tube - Google Patents

Abstract

The utility model belongs to the cold-formed steel extrusion welding technology, in particular to a novel five-roller type extrusion roller base for a cold-formed square and rectangular tube, which cancels a sealing end cover in an original lower roller component, plays a role of a bearing end cover and also plays a good sealing role by fixing the bearing end cover in the lower roller component on the end surface of a lower roller and rotationally matching the lower roller through a sealing ring; the first dust cover replaces a sealing end cover and a bearing end cover in the original side roller assembly, so that the length of a side roller shaft is effectively shortened, the diameter of the side roller is reduced, and a good sealing effect is achieved; through replacing the seal end cover and the bearing end cover in the former roller assembly with the shield II, effectively shortened the length of going up the roller, reduced the diameter of going up the roller to fine play sealed effect.

Description

Novel five roll-type squeeze roll frames of clod wash square tube

Technical Field

The utility model relates to a cold-formed steel production technical field, concretely relates to cold-formed square tube extrusion welding is with five roll-type squeeze roll frames of novel cold-formed square tube.

Background

In the prior art, the cold-bending square and rectangular tubes are continuously formed on line after being formed by cold bending and then are manufactured by an extrusion welding process, the extrusion welding process is a key technical link for welding the square and rectangular tubes and circular tubes, and key equipment used in the process is an extrusion roller base and a high-frequency welding machine. The squeeze roll stand generally comprises a roll, a shaft system, a frame and a feeding part, and mainly comprises a plurality of structural forms such as a two-roll type structure, a three-roll type structure, a four-roll type structure and a five-roll type structure at present, and no matter which structural form is adopted, the working principle is that the roll directly contacts a product, extrusion force is provided, and the extrusion force acts on a weld joint.

The working environment of the extrusion roller base is severe, and the extrusion roller base not only has high temperature, but also has a large amount of cooling water and dust. In the prior art, in order to realize the functions of the squeeze roll stand, the squeeze roll stand is required to be high-temperature resistant, waterproof and dustproof, equipment manufacturers generally design the structure of the squeeze roll stand to be complex and large in size, and particularly the diameters of a side squeeze roll and an upper squeeze roll are large.

As shown in fig. 1, the conventional square-rectangular tube five-roller extrusion roll stand comprises an extrusion side roll, an upper roll and a lower roll, wherein the extrusion side roll is composed of a bearing (1), a bearing end cover (2), a seal end cover (3), a side roll shaft (4) and the like, and the bearing is arranged in the roll. The side rollers and the upper rollers of the five-roller type squeeze roller machine base with the structure need larger diameters, and particularly when the specification range of a product to be processed is larger and the wall is thicker, the diameters of the side rollers and the upper rollers of one F100-F300X12mm square tube squeeze roller machine base reach 600mm. When the diameters of the side roller and the upper roller are larger, the quality of the welding seam of the product is reduced, and the equipment investment cost is higher.

Disclosure of Invention

To the not enough of above-mentioned prior art existence, the utility model aims at providing a novel five roll-type squeeze roll frames of clod wash square tube that structural design is reasonable and excellent in use effect.

In order to achieve the above object, the utility model adopts the following technical scheme: a novel cold-bending square and rectangular tube five-roller type extrusion roller base comprises a frame base, a lower roller assembly, two side roller assemblies and two upper roller assemblies, wherein the lower roller assembly, the two side roller assemblies and the two upper roller assemblies are assembled on the frame base; the lower roll component comprises a lower roll base, a lower roll shaft and a lower roll bearing, wherein the lower roll is assembled on the lower roll shaft through the lower roll bearing, two ends of the lower roll shaft are fixedly connected to the lower roll base, and the lower roll base is fixed on the frame base; each side roller assembly comprises a side roller frame, side roller shafts, side rollers and side roller bearings, wherein the side rollers are assembled on the side roller shafts through the side roller bearings, two ends of each side roller shaft are fixedly connected to the side roller frames, and the side roller frames are in sliding fit with the corresponding positions of the frame base; each upper roll component comprises an upper extrusion roll frame, a sliding roll seat, an upper roll shaft, an upper extrusion roll and an upper roll bearing, wherein the upper extrusion roll frame is fixed on the frame base through a vertical plate, the upper extrusion roll is assembled on the upper roll shaft through the upper roll bearing, two ends of the upper roll shaft are fixedly connected onto the sliding roll seat, and the sliding roll seat is in sliding fit with the upper extrusion roll frame and is provided with a driving mechanism to drive the sliding roll seat to slide up and down on the upper extrusion roll frame; it is characterized in that the preparation method is characterized in that,

the left end face and the right end face of the lower roller in the lower roller assembly are fixedly connected with a bearing end cover, the two bearing end covers are respectively sleeved outside the corresponding positions of the left end and the right end of the lower roller shaft, a sealing ring is clamped on the inner side of each bearing end cover, and the sealing rings are in rotating fit with the lower roller shaft;

the upper end and the lower end of a side roller in the side roller assembly are respectively provided with a first dustproof cover, each first dustproof cover is sleeved outside a corresponding position of a side roller shaft, the inner side of each first dustproof cover is tightly pressed on a side roller bearing, the outer side of each first dustproof cover is embedded into a groove formed in the corresponding position of the side roller to form a first labyrinth seal structure, and the first dustproof cover is in sliding fit with the side roller;

all be equipped with a shield two at last roller assembly's last roller left and right both ends, two covers of every shield are established outside the adapted position at last roller, and the inboard of every shield two compresses tightly on last roller bearing, and the ditch inslot of offering on the roller adapted position is gone up in the outside embedding of every shield two is in order to form labyrinth seal structure two and shield two and last roller between be sliding fit.

Preferably, a fixed seat is fixed on the frame base, and a driving mechanism is fixed on the fixed seat, wherein one end of the driving mechanism is fixedly connected with the side roller frame.

The utility model discloses a main innovation point as follows:

the original upper roll assembly, the lower roll assembly and the side roll assembly are improved, a sealing end cover in the original lower roll assembly is omitted, and a bearing end cover in the lower roll assembly is fixed on the end surface of the lower roll and is in rotating fit with the lower roll shaft through a sealing ring, so that the bearing end cover can play a role of a bearing end cover and also can play a good role of sealing; the first dust cover replaces a sealing end cover and a bearing end cover in the original side roller assembly, so that the length of a side roller shaft is effectively shortened, the diameter of the side roller is reduced, and a good sealing effect is achieved through a labyrinth sealing groove formed between the first dust cover and the side roller without influencing the rotation of the side roller; through replacing the seal end cover and the bearing end cover in the former roller assembly with the second shield, effectively shortened the length of going up the roller, reduced the diameter of going up the roller, moreover through the second labyrinth seal groove that forms between second shield and the last roller, can be fine play the sealing effect, but do not influence the rotation of going up the roller.

Compared with the prior art, the utility model discloses the beneficial effect who possesses is:

1. the bearing end cover in the lower roller assembly can play a role of the bearing end cover and also can play a dustproof effect, compared with the prior art, the bearing end cover and the sealing end cover in the prior art are integrated into the bearing end cover in the application, so that the structure can be more compact effectively, and a good dustproof sealing effect can be played due to the design of the sealing ring;

2. a first labyrinth seal structure formed between a first dust cover and a side roller in the side roller assembly can effectively play a role of sealing, and replaces a bearing end cover in the prior art, so that a side roller shaft can be effectively shortened, and the diameter of the side roller (a roller) is reduced;

3. the labyrinth seal structure II formed between the dust cover II and the upper roller in the upper roller assembly can effectively play a role in sealing, replaces a bearing end cover and the like in the prior art, and can reduce the length of an upper roller shaft and the diameter and thickness of the upper roller (roller).

Drawings

FIG. 1 is a schematic structural diagram of a cold-bending square and rectangular tube squeeze roll stand in the prior art;

FIG. 2 is a schematic structural view of the present invention;

fig. 3 is a schematic structural view of the lower roll assembly of the present invention;

fig. 4 is a schematic structural view of the side roller assembly of the present invention;

FIG. 5 is a schematic structural view of the upper roller assembly of the present invention;

the device comprises a frame base, a lower roller assembly, a lower roller base, a lower roller assembly, a lower roller base, 2.2, a lower roller, 2.3, a lower roller shaft, 2.4, a lower roller bearing, 2.5, a bearing end cover, 2.6, a sealing ring, 3, a side roller assembly, 3.1, a side roller frame, 3.2, a side roller shaft, 3.3, a side roller, 3.4, a side roller bearing, 3.5, a dust cover I, 3.6, a locking nut, 3.7, a shaft sleeve, 3.8, a labyrinth sealing structure I, 3.9, a turbine auxiliary lead screw structure, 3.10, a fixed seat, 4, an upper roller assembly, 4.1, an upper extrusion roller frame, 4.2, a sliding roller base, 4.3, an upper roller shaft, 4.4.4, an upper extrusion roller, 4.5, an upper roller bearing, 4.6, a second locking nut, 4.7, a stop washer, 4.8, a dust cover II, 4.9, a driving mechanism, 4.10, a labyrinth sealing structure, 5, a vertical plate and a product to be processed.

Detailed Description

In order to make the technical solutions of the present application better understood, the following description is clearly and completely described in conjunction with the technical solutions in the embodiments of the present application. It is to be understood that the described embodiments are merely exemplary of some, and not all, of the present application. Other embodiments, which can be obtained by those skilled in the art without making any creative effort based on the embodiments in the present application, shall fall within the protection scope of the present application.

It should be noted that, in the present application, the terms "upper", "lower", "left", "right", "front", "rear", and the like indicate that the orientation or positional relationship is based on the orientation or positional relationship shown in the drawings. These terms are used primarily for the purpose of better describing the present application and the specific embodiments, and are not intended to limit the structures indicated to have the particular orientation, or to be constructed and operated in the particular orientation.

Also, the following descriptions about "fixedly connecting", "fixing", and the like are bolt connecting, welding, and the like in the conventional art, and it is possible for those skilled in the art to understand the specific meanings of these terms in the present application according to the specific situation.

In addition, the details described below are all made with reference to the prior art.

As shown in fig. 2-5, the utility model discloses a five roll-type squeeze roll frames of novel clod wash square tube, including frame base 1 and lower roll subassembly 2, two side roll subassemblies 3, two on the frame base 1 these five parts of roll subassembly 4, wherein enclose into the space of placing of waiting to process product (clod wash square tube) 6 between lower roll subassembly 2, two side roll subassemblies 3 and two last roll subassemblies 4. The following is a detailed description of the five components:

1. the structure and the assembly principle of the lower roller component are as follows:

the lower roll component 2 mainly comprises a lower roll machine base 2.1, a lower roll 2.2, a lower roll shaft 2.3, a lower roll bearing 2.4, a bearing end cover 2.5 and a sealing ring 2.6. Wherein the lower roll base 2.1 is fixedly connected on the corresponding position of the frame base 1, two ends of the lower roll shaft 2.3 are fixedly connected on the lower roll base 2.1, an inner ring of a left lower roll bearing 2.4 and an inner ring of a right lower roll bearing 2.4 are sleeved and fixedly connected outside the lower roll shaft 2.3 according to a conventional mode, and a lower roll 2.2 is fixedly connected outside an outer ring of the lower roll bearing 2.4; all be equipped with a bearing end cover 2.5 on the left and right both ends terminal surface of lower roll 2.2, in the tang clearance fit embedding lower shaft 2.2 bearing hole of every bearing end cover 2.5, compress tightly lower roll bearing 2.4 outer loop simultaneously and make axial fixity, every sealing washer 2.6 card is on corresponding bearing end cover 2.5 is inboard, be sliding fit (sealing washer 2.6 is relative lower roll 2.3 and is done the rotation action between sealing washer 2.6 and lower roll 2.3). During operation, because the bearing end cover 2.5 is directly fixed on the end face of the lower roller 2.2 and is in sliding fit with the lower roller shaft 2.3 through the sealing ring 2.6, the bearing end cover 2.5 can serve as the bearing end cover and also can serve as the sealing end cover, the length of the lower roller shaft can be shortened, and the diameter of the lower roller shaft can be reduced.

2. The structure and the assembly principle of the side roller component are as follows:

the two side roller assemblies 3 are respectively positioned on the left side and the right side and are symmetrically arranged left and right. Each side roller assembly 3 comprises a side roller frame 3.1, a side roller shaft 3.2, a side roller 3.3, a side roller bearing 3.4, a first dust cover 3.5 and a locking nut 3.6. Wherein the bottom of the side roller frame 3.1 is embedded into a sliding groove arranged at a corresponding position at the top of the frame base 1, and the side roller frame 3.1 slides in the left and right directions relative to the frame base 1; the side roll shafts 3.2 are vertically arranged, the upper ends and the lower ends of the side roll shafts 3.2 are fixedly connected to the corresponding positions of the side roll frames 3.1, the outer parts of the side roll shafts 3.2 are fixedly connected with inner rings of an upper side roll bearing 3.4 and a lower side roll bearing 3.4, and the outer rings of the two side roll bearings 3.4 are fixedly connected with side rolls 3.3; the upper and lower end faces of the side roller 3.3 are respectively provided with a dust cap one 3.5, wherein the dust cap one 3.5 positioned above is sleeved outside the side roller shaft 3.2 and is locked by a locking nut 3.6 in threaded fit with the side roller shaft 3.2, and the inner side of the dust cap one 3.5 positioned above is pressed on the inner ring of the corresponding side roller bearing 3.4 positioned above; the lower dustproof cover I3.5 is sleeved outside the adaptive position of the side roller shaft 3.2 and is limited by a shaft sleeve 3.7 sleeved on the side roller shaft 3.2, the shaft sleeve 3.7 has the function that when the side rollers 3.3 with different heights need to be replaced, the replacement of the shaft sleeves 3.7 with different height specifications can be realized, and the inner side of the lower dustproof cover I3.5 is pressed on the inner ring of the corresponding lower side roller bearing 3.4; annular labyrinth grooves are formed in the adaptive positions of the upper end face and the lower end face of each side roller 3.3, correspondingly, protrusions matched with the labyrinth grooves in the side rollers 3.3 are formed at the bottom of the outer ends of the first dustproof covers 3.5, the protrusions of the first dustproof covers 3.5 are embedded into the corresponding labyrinth grooves to form a first labyrinth sealing structure 3.8, the protrusions on the first dustproof covers 3.5 are in sliding fit with the corresponding labyrinth grooves, and therefore the rotation of the side rollers 3.3 and the side roller bearings 3.4 is not affected. The side roll frame 3.1 of each side roll component 3 is fixedly connected with a driving mechanism (namely one end of a screw rod of a conventional turbine auxiliary screw rod structure 3.9 is rotated by a turbine to finally drive the screw rod to advance or retreat), each turbine auxiliary screw rod structure 3.9 is fixed on a fixed seat 3.10, and the fixed seat 3.10 is fixedly connected on the frame base 1. During operation, the two worm gear pair lead screws 3.9 drive the left and right horizontal linear sliding of the side roller frame 3.1, and then drive the two side rollers 3.3 to be close to or far away from, and the close to is used for extruding a middle product. And a first dust cover 3.5 in the side roller component 3 also has the functions of a bearing end cover and a sealing end cover.

3. The structure and the assembly principle of the upper roller component are as follows:

the two upper roll components 4 are positioned on the upper part of a product to be processed and are symmetrically distributed left and right. Each upper roll component 4 comprises an upper extrusion roll frame 4.1, a sliding roll seat 4.2, an upper roll shaft 4.3, an upper extrusion roll 4.4, an upper roll bearing 4.5, a second locking nut 4.6, a stop washer 4.7, a second dust cover 4.8 and a driving mechanism 4.9; two upper squeeze roll frames 4.1 (conventional door-shaped frames) are fixed on the same vertical plate 5, and the vertical plate 5 is vertically and fixedly connected to the frame base 1; a sliding groove (forming an included angle of 17.5 degrees with the vertical direction) is formed in each of the left inner side and the right inner side of each upper squeeze roll frame 4.1, the two sliding grooves are parallel to each other, and the same sliding roll seat 4.2 (also a conventional door-shaped frame) is matched in the two sliding grooves in a sliding manner; an upper roll shaft 4.3 is fixedly connected to each sliding roll seat 4.2, and an upper squeeze roll 4.4 is correspondingly matched outside each upper roll shaft 4.3 through a left upper roll bearing 4.5 and a right upper roll bearing 4.5; two dustproof covers 4.8 are arranged on the left end face and the right end face of each upper extrusion roller 4.4 in a sliding fit mode, specifically, annular grooves are formed in the adaptive positions of the left end face and the right end face of the upper extrusion roller 4.4, the outer edge of each dustproof cover two 4.8 is embedded into the corresponding annular groove to form a labyrinth seal structure two 4.10, the inner side of each dustproof cover two 4.8 is sleeved outside the upper roller shaft 4.3 and is fixedly pressed on the inner ring of the corresponding upper roller bearing 4.5 (the outer edge of one dustproof cover two 4.8 is pressed on the inner ring of the corresponding upper roller bearing 4.5 through a second locking nut 4.6 which is sleeved on the upper roller shaft 4.3 and in threaded fit mode, the other dustproof cover two 4.8 is pressed on the inner ring of the upper roller bearing 4.5 through an end cover which is fixed on the upper roller shaft 4.3), a stop washer 4.7 is further arranged between the second locking nut 4.6 and the corresponding dustproof cover two 4.8, and the stop washer 4.7 is sleeved on the outer ring of the upper stop washer 4.3. The top of each sliding roller seat 4.2 is fixedly connected with a driving mechanism 4.9 (also a conventional turbine pair screw rod structure, specifically, a screw rod penetrates through a hole formed on the corresponding upper extrusion roller frame 4.1 and then is fixedly connected with the sliding roller seat 4.2, and a turbine pair is fixedly connected with the top of the corresponding upper extrusion roller frame 4.1); during operation, the driving mechanism 4.9 drives the sliding roller seat 4.2 to slide up and down along the corresponding upper squeeze roller frame 4.1 in the direction of an included angle of 17.5 degrees with the vertical direction, so as to drive the upper squeeze roller 4.4 on the sliding roller seat 4.2 to be far away from or close to a product to be processed.

Claims (2)

1. A novel cold-bending square tube five-roller extrusion roller base comprises a frame base, and a lower roller assembly, two side roller assemblies and two upper roller assemblies which are assembled on the frame base; the lower roll component comprises a lower roll base, a lower roll shaft and a lower roll bearing, wherein the lower roll is assembled on the lower roll shaft through the lower roll bearing, two ends of the lower roll shaft are fixedly connected to the lower roll base, and the lower roll base is fixed on the frame base; each side roller assembly comprises a side roller frame, side roller shafts, side rollers and side roller bearings, wherein the side rollers are assembled on the side roller shafts through the side roller bearings, two ends of each side roller shaft are fixedly connected to the side roller frames, and the side roller frames are in sliding fit with the corresponding positions of the frame base; each upper roll component comprises an upper extrusion roll frame, a sliding roll seat, an upper roll shaft, an upper extrusion roll and an upper roll bearing, wherein the upper extrusion roll frame is fixed on the frame base through a vertical plate, the upper extrusion roll is assembled on the upper roll shaft through the upper roll bearing, two ends of the upper roll shaft are fixedly connected onto the sliding roll seat, and the sliding roll seat is in sliding fit with the upper extrusion roll frame and is provided with a driving mechanism to drive the sliding roll seat to slide up and down on the upper extrusion roll frame; it is characterized in that the preparation method is characterized in that,

the end surfaces of the left end and the right end of the lower roller in the lower roller assembly are fixedly connected with a bearing end cover, the two bearing end covers are respectively sleeved outside the corresponding positions of the left end and the right end of the lower roller shaft, a sealing ring is clamped on the inner side of each bearing end cover, and the sealing rings are in rotating fit with the lower roller shaft;

the upper end and the lower end of a side roller in the side roller assembly are respectively provided with a first dustproof cover, each first dustproof cover is sleeved outside a corresponding position of a side roller shaft, the inner side of each first dustproof cover is tightly pressed on a side roller bearing, the outer side of each first dustproof cover is embedded into a groove formed in the corresponding position of the side roller to form a first labyrinth seal structure, and the first dustproof covers are in sliding fit with the side roller;

all be equipped with a shield two at last roller assembly's last roller left and right both ends, two covers of every shield are established outside the adapted position at last roller, and the inboard of every shield two compresses tightly on last roller bearing, and the ditch inslot of offering on the roller adapted position is gone up in the outside embedding of every shield two is in order to form labyrinth seal structure two and shield two and last roller between be sliding fit.

2. The novel cold-bending square tube five-roller squeeze roller stand according to claim 1, wherein a fixed seat is fixed on the frame base, and a driving mechanism is fixed on the fixed seat, wherein one end of the driving mechanism is fixedly connected with the side roller frame.

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