A large-opening integral frame multi-roller rolling mill

Abstract

A large-opening integral frame multi-roller rolling mill comprises a frame, an open inner hole is formed in the frame, an upper half roll system and a lower half roll system are arranged relatively from top to bottom in the inner hole, the upper half roll system comprises a plurality of support rolls, a preset hole connected with the plurality of support rolls is formed on the frame, a locking oil cylinder connected with the support rolls is arranged in the preset hole; a roll system compensation mechanism and a side roll seat are arranged below the lower half roll system, the side roll seat is placed on the roll system compensation mechanism, and the lower half roll system comprises a bottom support roll and a side support roll, the bottom of the bottom support roll is located on the roll system compensation mechanism, and the bottom of the side support roll is located on the side roll seat; compared with the prior art, the setting of the right-angled open inner hole is convenient for mechanical processing of the frame, and the processing accuracy of the frame is also guaranteed and improved, the requirements for processing equipment are low, and at the same time, the opening size of the inner hole is large, which is convenient for threading, and the roll changing and roll matching coefficients are high, the stability of the upper half roll system and the lower half relationship is good, the operation and maintenance are simple, and the operation is reliable.

Description

Technical Field

[0001] The invention belongs to the technical field of rolling mills, and in particular relates to a large-opening integral frame multi-roller rolling mill. Background Art

[0002] A rolling mill is a device that realizes the metal rolling process. It generally refers to a device that completes the steel rolling production process, in which the rollers are the components that cause metal plastic deformation.

[0003] The roller is mainly composed of three parts: the roller body, the roller neck and the shaft head. The roller body is the middle part of the roller that actually participates in rolling the metal. It has a smooth cylindrical or grooved surface. The roller neck is installed in the bearing and transmits the rolling force to the frame through the bearing seat and the pressing device. The shaft head at the transmission end is connected to the gear seat through the connecting shaft to transmit the rotational torque of the motor to the roller. The rollers can be arranged in the form of two rollers, three rollers, four rollers or multiple rollers in the rolling mill frame.

[0004] In existing rolling mills, the stability of the rolling rolls determines the flatness of the rolled steel strips, and the existing roll diameter compensation device is usually located in the lower roll system of the rolling mill, which improves the flatness of the steel strip during the rolling process by supporting the lower roll system. The upper roll system will also produce certain vibrations during the rolling process, thereby affecting the quality of the steel strip rolling. The stability of the upper and lower roll systems determines the qualified rate of the steel strips.

[0005] Existing rolling mills are usually split structures, which are difficult to process and have insufficient rigidity in the roller box frame, which affects the rolling effect of the steel strip. At the same time, the opening of the existing integral rolling mill is small, which increases the difficulty of operation for operators during the strip threading process. Summary of the invention

[0006] The present invention aims to overcome the defects in the prior art and provides a large-opening integral frame multi-roller rolling mill with a taut upper roller system, a supporting lower roller system and a stable roller system.

[0007] In order to achieve the above purpose, the technical solution adopted by the present invention is: a large-open integral frame multi-roll rolling mill, including a frame, an open inner hole is formed in the frame, and an upper half roll system and a lower half roll system are arranged oppositely from top to bottom in the inner hole, the upper half roll system includes a plurality of support rolls, and a preset hole connected to the plurality of support rolls is formed on the frame, and a locking cylinder connected to the support roll is arranged in the preset hole; a roll system compensation mechanism and a side roll seat are arranged below the lower half roll system, and the side roll seat is placed on the roll system compensation mechanism, and the lower half roll system includes a bottom support roll and a side support roll, the bottom of the bottom support roll is located on the roll system compensation mechanism, and the bottom of the side support roll is located on the side roll seat.

[0008] As a preferred solution of the present invention, a positioning guide sleeve for positioning the locking cylinder is provided in the preset hole, and a first groove and a second groove are formed on the positioning guide sleeve, the first groove is located on the bottom outer wall of the positioning guide sleeve, and the second groove is located on the top inner wall of the positioning guide sleeve, and the first groove and the second groove are not on the same straight line.

[0009] As a preferred solution of the present invention, a locking strip is provided between adjacent support rollers, the locking strip is fixedly connected to the inner wall of the inner hole, and a fixing plate is provided at the bottom of the support rollers on both sides, and the fixing plate is also fixedly connected to the inner wall of the inner hole.

[0010] As a preferred solution of the present invention, a locking block is provided at the end of the locking cylinder, the locking block is connected to the supporting roller, and a connecting hole is formed on the locking block, and a matching hole connected to the connecting hole is formed on the locking cylinder, and cylindrical pins are provided in the connecting hole and the matching hole.

[0011] As a preferred solution of the present invention, a set screw is provided between the positioning guide sleeve and the frame, and the set screw is connected to the first groove and the second groove.

[0012] As a preferred solution of the present invention, the side roller seats are placed on both sides of the roller system compensation mechanism, the sides of the bottom support rollers are against the side roller seats, and the sides of the side support rollers are against the inner wall of the inner hole.

[0013] As a preferred solution of the present invention, the roller system compensation mechanism includes a lower inclined wedge block and an upper inclined wedge block which are overlapped, the upper inclined wedge block is located above the lower inclined wedge block, and a groove which is compatible with the edge roller seat is formed on the side of the upper inclined wedge block.

[0014] As a preferred solution of the present invention, a front limit block and a rear limit block are provided at both ends of the upper inclined wedge block, and the front limit block and the rear limit block are fixedly connected to the frame.

[0015] As a preferred solution of the present invention, one end of the downwardly inclined wedge block is connected to an inclined wedge cylinder, the bottom of the downwardly inclined wedge block abuts against the bottom of the inner hole, and the downwardly inclined wedge block moves horizontally along the bottom of the inner hole.

[0016] As a preferred solution of the present invention, an oil cylinder and a roller locking plate are provided on the top of the upper inclined wedge block, and the oil cylinder and the roller locking plate are located in the middle of the bottom supporting roller.

[0017] The beneficial effects of the present invention are as follows: compared with the prior art, by setting a right-angled opening inner hole, the mechanical processing of the frame is facilitated, and the processing accuracy of the frame is also guaranteed and improved, and the requirements for processing equipment are low. At the same time, the opening size of the inner hole is large, which is convenient for threading the belt, and the roller changing and matching coefficients are high. The stability of the upper roller system and the lower roller relationship is good, the operation and maintenance are simple, and the operation is reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the present invention;

[0019] Figure 2 is a cross-sectional view of the present invention;

[0020] Figure 3 It is a schematic diagram of the structure of the upper roller system;

[0021] Figure 4 It is an exploded view of the upper roller system;

[0022] Figure 5 It is a structural diagram of the locking cylinder;

[0023] Figure 6 It is a structural schematic diagram of the positioning guide sleeve;

[0024] Figure 7 It is a schematic diagram of the structure on the top of the rack;

[0025] Figure 8 It is a schematic diagram of the structure of the lower half roller system;

[0026] Fig. 9 It is an exploded view of the lower half roller system;

[0027] Fig.10 It is a structural schematic diagram of the upward inclined wedge;

[0028] Fig.11 It is a schematic diagram of the structure of the downward inclined wedge;

[0029] Fig.12 It is the force analysis diagram of the upper roller system and the lower roller system;

[0030] Reference numerals in the figure: frame 1, preset hole 1-1, inner hole 1-2, first step 1-3, second step 1-4, locking strip 1-5, fixing plate 1-6, upper roller system 2, first support roller 2-1, second support roller 2-2, third support roller 2-3, fourth support roller 2-4, lower roller system 3, bottom support roller 3-1, side support roller 3-2, locking cylinder 4, positioning guide sleeve 4-1, locking block 4-2, first groove 4-3, second groove 4 -4, cylindrical pin 4-5, set screw 4-6, cylinder seat 4-7, fastening hole 4-8, matching hole 4-9, connecting hole 4-10, side roller seat 5, roller compensation mechanism 6, upper inclined wedge block 7, groove 7-1, cylinder 7-2, locking roller plate 7-3, lower inclined wedge block 8, pull ring 8-1, front limit block 9, rear limit block 10, inclined wedge cylinder 11, cylinder seat 11-1, connecting pin 11-2, copper sleeve 11-3, copper sleeve cover 11-4, bolt 11-5. DETAILED DESCRIPTION

[0031] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0032] like Figure 1-12 As shown, a large-open integral frame multi-roller rolling mill includes a frame 1, an open inner hole 1-2 is formed in the frame 1, the inner hole 1-2 is a rectangular right-angle structure, an upper half roll system 2 and a lower half roll system 3 are arranged oppositely from top to bottom in the inner hole 1-2, the upper half roll system 2 includes a plurality of support rolls, a preset hole 1-1 connected to the plurality of support rolls is formed on the frame 1, a locking cylinder 4 connected to the support rolls is arranged in the preset hole 1-1; a roll system compensation mechanism 6 and a side roll seat 5 are arranged below the lower half roll system 3, the side roll seat 5 is placed on the roll system compensation mechanism 6, and the lower half roll system 3 includes a bottom support roll 3-1 and a side support roll 3-2, the bottom of the bottom support roll 3-1 is located on the roll system compensation mechanism 6, and the bottom of the side support roll 3-2 is located on the side roll seat 5

[0033] The number of support rollers on the upper roller system 2 is designed according to actual needs. The upper roller system 2 is provided with 4 support rollers connected to the frame 1, namely the first support roller 2-1, the second support roller 2-2, the third support roller 2-3 and the fourth support roller 2-4. Each support roller is provided with two matching locking cylinders 4, and the two locking cylinders 4 are located at both ends of the support roller. A support roller seat is provided outside the support roller, and the locking cylinder 4 is connected to the support roller seat, and the support roller seat is fixedly connected to the inner wall of the inner hole 1-2 by bolts.

[0034] A locking block 4-2 is provided at the end of the locking cylinder 4, the locking block 4-2 is connected to the supporting roller, and a connecting hole 4-10 is formed on the locking block 4-2, and a matching hole 4-9 connected to the connecting hole 4-10 is formed on the locking cylinder 4, and a cylindrical pin 4-5 is provided in the connecting hole 4-10 and the matching hole 4-9.

[0035] The locking block 4-2 is a clip structure, and the locking block 4-2 is connected to the locking cylinder 4 through a cylindrical pin 4-5, so that the locking block 4-2 and the axial movement of the locking cylinder 4 run synchronously, and the locking block 4-2 is connected to the support roller seat of the support roller, and is fixedly connected by bolts or pins, so that the locking cylinder 4 tightens the support roller along the axial direction of the locking cylinder 4, so that the support roller always receives a tensioning force along the axial direction of the locking cylinder 4. Through the tightening of the locking cylinder 4, the support roller is pressed against the frame 1, so that the positioning of the support roller is more precise.

[0036] The positioning guide sleeve 4-1 is located in the preset hole 1-1, and the positioning guide sleeve 4-1 is a hollow structure. The locking cylinder 4 passes through the positioning guide sleeve 4-1. The inner wall of the inner hole of the positioning guide sleeve 4-1 is against the outer wall of the locking cylinder 4. A first groove 4-3 and a second groove 4-4 are formed on the positioning guide sleeve 4-1. The first groove 4-3 is located on the bottom outer wall of the positioning guide sleeve 4-1, and the second groove 4-4 is located on the top inner wall of the positioning guide sleeve 4-1. The first groove 4-3 and the second groove 4-4 are not on the same straight line. The first groove 4-3 and the second groove 4-4 are threaded groove structures. The first groove 4-3 and the second groove 4-4 are located at both ends of the positioning guide sleeve 4-1.

[0037] A set screw 4-6 is provided between the positioning guide sleeve 4-1 and the frame 1, and the set screw 4-6 is connected to the first groove 4-3 and the second groove 4-4. The first groove 4-3 and the second groove 4-4 are both provided with corresponding set screws 4-6. Through the setting of the set screw 4-6, the position of the positioning guide sleeve 4-1 is positioned, and the rotation and falling off of the positioning guide sleeve 4-1 are prevented, which plays a guiding and stabilizing role for the locking cylinder 4.

[0038] The inner hole 1-2 structure is a right-angle inner hole 1-2 structure, and the right-angle inner hole 1-2 forms a first step 1-3 and a second step 1-4, the first step 1-3 is located above the second step 1-4, and the right-angle inner hole 1-2 forms a "convex" structure, and multiple support rollers are located on the first step 1-3 or the second step 1-4, and multiple support rollers are symmetrically arranged along the top center of the right-angle inner hole 1-2.

[0039] In a preferred embodiment, four support rollers connected to the inner hole 1-2 are provided in the frame 1, and the multiple support rollers include a first support roller 2-1, a second support roller 2-2, a third support roller 2-3 and a fourth support roller 2-4 which are arranged in sequence, the second step 1-4 is located on both sides of the first step 1-3, the first support roller 2-1 and the fourth support roller 2-4 are located on the second step 1-4, the first support roller 2-1 and the fourth support roller 2-4 are located at the same horizontal height, the second support roller 2-2 and the third support roller 2-3 are located on the first step 1-3, the second support roller 2-2 and the third support roller 2-3 are located at the same horizontal height, the first support roller 2-1, the second support roller 2-2 and the third support roller 2-3, the fourth support roller 2-4 are symmetrically arranged.

[0040] One side of the first support roller 2-1 is connected to the side wall of the inner hole 1-2, the top of the first support roller 2-1 is connected to the bottom of the second step 1-4, the bottom of the second step 1-4 is vertically arranged with the side wall of the inner hole 1-2, one side of the second support roller 2-2 is connected to the side wall of the second step 1-4, the top of the second support roller 2-2 is connected to the first step 1-3, the side wall of the second step 1-4 is vertically arranged with the first step 1-3, the top of the third support roller 2-3 is connected to the first step 1-3, and the third support roller 2-3 is connected to the first step 1-3. One side of the roller 2-3 is connected to the side wall of the second step 1-4, the side wall of the second step 1-4 is vertically arranged to the first step 1-3, one side of the fourth support roller 2-4 is connected to the side wall of the inner hole 1-2, the top of the fourth support roller 2-4 is connected to the bottom of the second step 1-4, and the bottom of the second step 1-4 is vertically arranged to the side wall of the inner hole 1-2, so that the first support roller 2-1, the second support roller 2-2, the third support roller 2-3 and the fourth support roller 2-4 all have two sides connected to the frame 1 at the same time.

[0041] The first support roller 2-1 is butted against the locking strip 1-5 and the fixing plate 1-6 on both sides, the second support roller 2-2 is butted against the locking strip 1-5 on both sides, the third support roller 2-3 is also butted against the locking strip 1-5 on both sides, and the fourth support roller 2-4 is butted against the locking strip 1-5 and the fixing plate 1-6 on both sides, so that the first support roller 2-1, the second support roller 2-2, the third support roller 2-3 and the fourth support roller 2-4 have better stability.

[0042] A locking strip 1-5 is provided between the first support roller 2-1, the second support roller 2-2, the third support roller 2-3 and the fourth support roller 2-4. The locking strip 1-5 is fixedly connected to the inner wall of the inner hole 1-2, and a fixing plate 1-6 is provided at the bottom of the first support roller 2-1 and the fourth support roller 2-4. The fixing plate 1-6 is also fixedly connected to the inner wall of the inner hole 1-2. The locking strip 1-5 is fixedly connected to the frame 1 by screws. Similarly, the fixing plate 1-6 is also fixedly connected to the frame 1 by screws.

[0043] A supporting roller lining 12 is provided between the supporting roller and the inner wall of the inner hole 1-2, so that the supporting roller has better stability. A locking cylinder seat 4-7 connected to the frame 1 is provided on the locking cylinder 4, and a fastening hole 4-8 adapted to the frame 1 is formed on the locking cylinder seat 4-7. A screw is provided in the fastening hole 4-8. Under the action of the screw, the locking cylinder seat 4-7 is fixedly connected to the frame 1, thereby achieving the stability of the locking cylinder 4.

[0044] In actual use, by preventing the positioning guide sleeve 4-1 in the preset hole 1-1, the positioning guide sleeve 4-1 is locked under the action of the set screw 4-6. When the locking cylinder 4 extends into the inner hole 1-2, the locking block 4-2 is sleeved on the locking cylinder 4. The locking block 4-2 clamps the support roller seat of the corresponding support roller. The locking block 4-2 and the locking cylinder 4 are connected by the cylindrical pin 4-5, so that the support roller seat is always subjected to the force along the axial direction of the locking cylinder 4, the support roller seat is tightened, and the support roller seat is close to the frame 1. When the support roller needs to be replaced, the cylindrical pin 4-5 is taken out, the locking block 4-2 is removed, the locking cylinder 4 is allowed to rise, and the support roller is pulled out for replacement.

[0045] The lower half roller system 3 includes a bottom support roller 3-1 and a side support roller 3-2. The bottom of the bottom support roller 3-1 is located on the roller system compensation mechanism 6, and the bottom of the side support roller 3-2 is located on the side roller seat 5. The side roller seat 5 is placed on the roller system compensation mechanism 6; the side of the bottom support roller 3-1 is against the side roller seat 5, and the side of the side support roller 3-2 is against the inner wall of the inner hole 1-2.

[0046] The inner hole 1-2 is a right-angle structure, the bottom of the inner hole 1-2 is a horizontal structure, the side wall of the inner hole 1-2 is vertically arranged at the bottom, the upper roller system 2 is located at the top of the inner hole 1-2, the lower roller system 3, the side roller seat 5 and the roller system compensation mechanism 6 are located at the bottom of the inner hole 1-2, the number of rollers of the upper roller system 2 and the lower roller system 3 is set according to actual needs, and the side roller seat 5 and the roller system compensation mechanism 6 are used to support and compensate the lower roller system 3.

[0047] As a preferred embodiment, the lower half roller system 3 includes four support rollers in contact with the side roller seat 5 and the roller system compensation mechanism 6, which are two side support rollers 3-2 and two bottom support rollers 3-1. The two bottom support rollers 3-1 are located in the middle of the bottom of the inner hole 1-2, and the two side support rollers 3-2 are located on both sides of the bottom of the inner hole 1-2.

[0048] The bottom of the side support roller 3-2 is against the side roller seat 5, and the side of the side support roller 3-2 is against the inner wall of the inner hole 1-2, the bottom of the bottom support roller 3-1 is against the roller compensation mechanism 6, the side of the bottom support roller 3-1 is against the side roller seat 5, the horizontal height of the bottom support roller 3-1 is below the horizontal height of the side support roller 3-2, the bottom support roller 3-1 and the side roller seat 5 are raised by the rise of the roller compensation mechanism 6, and at the same time, the bottom support roller 3-1 produces an outward squeeze on the side roller seat 5, and the radial force of the bottom support roller 3-1 is transmitted to the frame 1 through the side roller seat 5. At the same time, the side roller seat 5 generates a certain radial force on the side support roller 3-2 during the rising process, and the radial force generated by the side support roller 3-2 is directly transmitted to the frame 1, thereby ensuring that the rolling line remains unchanged.

[0049] The roller system compensation mechanism 6 includes a lower inclined wedge block 8 and an upper inclined wedge block 7 which are overlapped. The upper inclined wedge block 7 is located above the lower inclined wedge block 8. A groove 7-1 which is adapted to the side roller seat 5 is formed on the side of the upper inclined wedge block 7. The size of the groove 7-1 is larger than the width of the side roller seat 5. The side roller seat 5 can move horizontally between the groove 7-1 and the inner wall of the frame 1. The lower inclined wedge block 8 and the upper inclined wedge block 7 are both inclined structures, and the inclination directions of the lower inclined wedge block 8 and the upper inclined wedge block 7 are opposite.

[0050] The inclination angle of the upper inclined wedge block 7 is the same as that of the lower inclined wedge block 8, and the inclination direction of the upper inclined wedge block 7 is opposite to that of the lower inclined wedge block 8. The bottom of the lower inclined wedge block 8 is horizontally set, and the bottom of the lower inclined wedge block 8 is slidably connected to the bottom of the inner hole 1. The upper inclined wedge block 7 is placed on the inclined surface of the lower inclined wedge block 8, and the side roller seat 5 is placed on both sides of the top of the upper inclined wedge block 7. The top of the upper inclined wedge block 7 always remains in a horizontal state, thereby ensuring the stability of the side roller seat 5 on the upper inclined wedge block 7. During the lifting and lowering process of the upper inclined wedge block 7, the side roller seat 5 is only subjected to gravity and vertical upward thrust.

[0051] A front limit block 9 and a rear limit block 10 are provided at both ends of the upper inclined wedge block 7, and the front limit block 9 and the rear limit block 10 are fixedly connected to the frame 1. The side roller seat 5 is arranged parallel to the lower half roller system 3, and the two ends of the side roller seat 5 are against the frame 1 and the front limit block 9.

[0052] A front limit block 9 and a rear limit block 10 are provided on the inner hole 1-2, and the front limit block 9 and the rear limit block 10 are always against the two sides of the upper inclined wedge block 7, and the distance between the front limit block 9 and the rear limit block 10 is consistent with the length of the upper inclined wedge block 7, so that the upper inclined wedge block 7 can only move up and down in the vertical direction, and a lining plate 12 is provided between the front limit block 9 and the rear limit block 10 and the frame 1, and the front limit block 9 and the rear limit block 10 are fixedly connected to the frame 1 by screws, and the two ends of the side roller seat 5 are limited by the frame 1 and the front limit block 9, so that the side roller seat 5 can only move along the lateral direction, thereby improving the stability of the side roller seat 5.

[0053] An oil cylinder 7-2 and a roller locking plate 7-3 are provided on the top of the upper inclined wedge block 7. The oil cylinder 7-2 and the roller locking plate 7-3 are located between adjacent support rollers. A bottom support roller 3-1 is provided on the roller locking plate 7-3. The oil cylinder 7-2 and the roller locking plate 7-3 are located on the upper surface of the upper inclined wedge block 7. The oil cylinder 7-2 is used to lock the roller locking plate 7-3. Both sides of the roller locking plate 7-3 are simultaneously against the two bottom support rollers 3-1, so that a certain distance is always maintained between the two bottom support rollers 3-1.

[0054] A lining plate 12 is provided between the lower inclined wedge block 8 and the upper inclined wedge block 7, and a lining plate 12 is also provided between the lower inclined wedge block 8 and the frame 1, and a lining plate 12 is also provided between the front limit block 9, the rear limit block 10 and the frame 1. The lining plate 12 is designed to protect objects from direct impact and friction between the grinding body and the material.

[0055] The bottom support roller 3-1 and the side support roller 3-2 are fan-shaped with their openings facing upward. One end of the lower inclined wedge block 8 is connected to an inclined wedge cylinder 11. The inclined wedge cylinder 11 drives the lower inclined wedge block 8 to move horizontally on the bottom of the inner hole 1-2. The inclined wedge cylinder 11 is fixedly connected to the frame 1. The bottom of the lower inclined wedge block 8 abuts against the bottom of the inner hole 1-2. The lower inclined wedge block 8 moves horizontally along the bottom of the inner hole 1-2. A matching groove 8-2 matched with the end of the lower inclined wedge block 8 is formed on the frame 1. The matching groove 8-2 is connected to the inner hole 1-2. When the end of the lower inclined wedge block 8 moves to the matching groove 8-2, the positioning of the lower inclined wedge block 8 is achieved. At this time, it is the extreme position of the lower inclined wedge block 8.

[0056] The lower inclined wedge block 8 moves horizontally under the action of the inclined wedge cylinder 11. During the movement of the lower inclined wedge block 8, the upper inclined wedge block 7 is driven to rise and fall in the vertical direction, thereby adjusting the positions of the bottom support roller 3-1 and the side support roller 3-2. When the rolling line remains unchanged, steel strips of different sizes can be rolled.

[0057] A cylinder seat 11-1 for positioning the inclined wedge cylinder 11 is provided on the frame 1, and the cylinder seat 11-1 is fixedly connected to one side of the frame 1, and a pull ring 8-1 connected to the inclined wedge cylinder 11 is formed on the lower inclined wedge block 8, and a connecting pin 11-2 for locking is provided between the lower inclined wedge block 8 and the inclined wedge cylinder 11, and a copper sleeve 11-3 and a copper sleeve cover 11-4 are provided between the cylinder seat 11-1 and the inclined wedge cylinder 11, the copper sleeve 11-3 is connected to both sides of the inclined wedge cylinder 11, the copper sleeve cover 11-4 is sleeved on the copper sleeve 11-3, and a bolt 11-5 for locking with the cylinder seat 11-1 is provided on the copper sleeve cover 11-4, and under the action of the connecting pin 11-2, the lower inclined wedge block 8 is fixedly connected to the inclined wedge cylinder 11.

[0058] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention; therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

[0059] Although this article uses more reference numerals in the figure: frame 1, preset hole 1-1, inner hole 1-2, first step 1-3, second step 1-4, locking strip 1-5, fixing plate 1-6, upper roller system 2, first support roller 2-1, second support roller 2-2, third support roller 2-3, fourth support roller 2-4, lower roller system 3, bottom support roller 3-1, side support roller 3-2, locking cylinder 4, positioning guide sleeve 4-1, locking block 4-2, first groove 4-3, second groove 4-4, cylindrical pin 4-5, set screw 4-6, locking cylinder seat 4-7, fastening hole 4-8 , matching hole 4-9, connecting hole 4-10, side roller seat 5, roller compensation mechanism 6, upper inclined wedge block 7, groove 7-1, cylinder 7-2, locking roller plate 7-3, lower inclined wedge block 8, pull ring 8-1, front limit block 9, rear limit block 10, inclined wedge cylinder 11, cylinder seat 11-1, connecting pin 11-2, copper sleeve 11-3, copper sleeve cover 11-4, bolt 11-5 and other terms, but does not exclude the possibility of using other terms; these terms are used only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional restrictions is contrary to the spirit of the present invention.

Claims

1. A large-opening integral frame multi-roller rolling mill, characterized in that: The invention comprises a frame (1), wherein an open inner hole (1-2) is formed in the frame (1), wherein an upper roller system (2) and a lower roller system (3) are arranged opposite to each other from top to bottom in the inner hole (1-2), wherein the upper roller system (2) comprises a plurality of support rollers, and a preset hole (1-1) connected to the plurality of support rollers is formed on the frame (1), and a locking oil cylinder (4) connected to the support rollers is arranged in the preset hole (1-1); the lower roller system (3) comprises a plurality of support rollers, and a roller system compensation mechanism (6) and a side roller seat (5) are arranged below the lower roller system, and the side roller seat (5) is located above both sides of the roller system compensation mechanism (6); the lower roller system (3) comprises a bottom support roller (3-1) and a side support roller (3-2), wherein the bottom of the bottom support roller (3-1) is located on the roller system compensation mechanism (6), and the bottom of the side support roller (3-2) is located on the side roller seat (5); A positioning guide sleeve (4-1) for positioning and locking the oil cylinder (4) is arranged in the preset hole (1-1), and a first groove (4-3) and a second groove (4-4) are formed on the positioning guide sleeve (4-1), the first groove (4-3) is located on the bottom outer wall of the positioning guide sleeve (4-1), and the second groove (4-4) is located on the top inner wall of the positioning guide sleeve (4-1), and the first groove (4-3) and the second groove (4-4) are not on the same straight line; A locking strip (1-6) is provided between adjacent support rollers, the locking strip (1-6) is fixedly connected to the inner wall of the inner hole (1-2), and a fixing plate (1-5) is provided at the bottom of the support rollers on both sides, the fixing plate (1-5) is also fixedly connected to the inner wall of the inner hole (1-2); The locking cylinder (4) is provided with a locking block (4-2) at the end thereof, the locking block (4-2) is connected to the supporting roller, a connecting hole (4-10) is formed on the locking block (4-2), a matching hole (4-9) connected to the connecting hole (4-10) is formed on the locking cylinder (4), and cylindrical pins (4-5) are provided in the connecting hole (4-10) and the matching hole (4-9); A set screw (4-6) is provided between the positioning guide sleeve (4-1) and the frame (1), and the set screw (4-6) is connected to the first groove (4-3) and the second groove (4-4); The roller system compensation mechanism (6) comprises a lower inclined wedge block (8) and an upper inclined wedge block (7) which are overlapped, the upper inclined wedge block (7) being located above the lower inclined wedge block (8), and a groove (7-1) which is adapted to the side roller seat (5) is formed on the side of the upper inclined wedge block (7); The two ends of the upper inclined wedge block (7) are provided with a front limit block (9) and a rear limit block (10), and the front limit block (9) and the rear limit block (10) are fixedly connected to the frame (1); One end of the downwardly inclined wedge block (8) is connected to an inclined wedge oil cylinder (11), the bottom of the downwardly inclined wedge block (8) abuts against the bottom of the inner hole (1-2), and the downwardly inclined wedge block (8) moves in a horizontal direction along the bottom of the inner hole (1-2); An oil cylinder (7-2) and a roller locking plate (7-3) are provided on the top of the upper inclined wedge block (7), and the oil cylinder (7-2) and the roller locking plate (7-3) are located in the middle of the bottom support roller (3-1).

2. The large-opening integral frame multi-roller rolling mill according to claim 1, characterized in that: The side roller seats (5) are placed on both sides of the roller system compensation mechanism (6), the sides of the bottom support rollers (3-1) are in contact with the side roller seats (5), and the sides of the side support rollers (3-2) are in contact with the inner wall of the inner hole (1-2).

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