CN210586395U - Continuous rolling mill outlet pinch roll device - Google Patents

Abstract

The utility model relates to a tandem mill export pinch roll device, including frame, last roller, lower roll, jacking device, elevation adjusting device, actuating mechanism and thrust unit: two groups of sliding rail assemblies are arranged in the frame; the front end and the rear end of the upper roller are respectively in sliding fit with a group of sliding rail components above through an upper bearing seat assembled on the upper roller; the front end and the rear end of the lower roller are respectively in sliding fit with a group of sliding rail components below through a lower bearing seat assembled on the lower roller; the jacking device is used for contacting with the lower bearing seats at the front end and the rear end and driving the lower roller to move up and down; the elevation adjusting device is used for contacting with the upper bearing seats at the front end and the rear end and pressing the upper roller downwards; the driving mechanism is used for being in transmission connection with the front ends of the upper roller and the lower roller respectively; the pushing device is used for being connected with the lower roller and pulling the upper roller and the lower roller which are assembled through the connecting piece forwards or backwards out of the machine frame along the sliding rail assembly. The advantages are that: the device is simple and convenient to operate, and can effectively keep the tension at the outlet of the rolling mill after the steel strip is cut off, so that the steel strip is well conveyed.

Description

Continuous rolling mill outlet pinch roll device

Technical Field

The utility model relates to a steel band processing technology, in particular to tandem mill export pinch roll device.

Background

In a continuous rolling unit, good tension of a steel plate needs to be ensured before flying shears at an outlet and an outlet of a final stand, and good conveying can be continuously maintained.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a tandem mill export pinch roll device is provided, the effectual defect of overcoming prior art.

The utility model provides an above-mentioned technical problem's technical scheme as follows: the utility model provides a continuous rolling mill export pinch roll device, includes frame, upper roll, lower roll, jacking device, elevation adjusting device, actuating mechanism and thrust unit: the rack is a hollow rack body which is horizontally arranged along the front-back direction and is provided with openings at the front end and the back end, and two groups of sliding rail assemblies which are horizontally arranged along the front-back direction are arranged in the rack body at intervals up and down; the upper roller is horizontally arranged along the front-back direction, and the front end and the back end of the upper roller are respectively in sliding fit with a group of the slide rail components positioned above the upper roller through an upper bearing seat assembled on the upper roller; the lower roller is horizontally arranged along the front-back direction, and the front end and the back end of the lower roller are respectively in sliding fit with a group of the sliding rail components positioned below through a lower bearing seat assembled on the lower roller; the jacking device is used for contacting with the lower bearing seats at the front end and the rear end of the lower roller and driving the lower roller to move up and down; the elevation adjusting device is arranged at the upper part in the frame and is used for contacting with the upper bearing seats at the front end and the rear end of the upper roller and pressing the upper roller downwards; the driving mechanism is used for being respectively in transmission connection with the front ends of the upper roller and the lower roller and simultaneously driving the upper roller and the lower roller to rotate reversely; the pushing device is used for connecting and assembling with the lower roller and pulling the upper roller and the lower roller which are assembled together through the connecting piece forwards or backwards out of the machine frame along the corresponding sliding rail components.

The utility model has the advantages that: the steel strip conveying device has the advantages of reasonable structural design, simplicity and convenience in operation, and capability of effectively keeping the tension of the outlet of the rolling mill after the steel strip is cut off, so that the steel strip is well conveyed.

On the basis of the technical scheme, the utility model discloses can also do following improvement.

Further, each group of the slide rail assemblies is composed of two slide rails horizontally arranged along the front-back direction, the two slide rails of each group are symmetrically arranged on the left side and the right side of the inside of the rack respectively, and rollers in sliding fit with the corresponding slide rails are rotatably arranged on the left side and the right side of each upper bearing seat and each lower bearing seat respectively.

The beneficial effect of adopting above-mentioned further scheme is that structural design is reasonable, guarantees the stability when going up roller and lower roll and sliding between them.

Further, the jacking device comprises two jacking oil cylinders, the two jacking oil cylinders are respectively vertically arranged at the positions, corresponding to the front end and the rear end, of the lower portion of the rack, piston rods of the two jacking oil cylinders extend upwards, the two jacking oil cylinders can synchronously drive the piston rods to move upwards to be in contact with lower bearing seats at the front end and the rear end of the lower roller assembled in the rack, and the lower roller is jacked up.

The beneficial effects of adopting the above further scheme are that the design is simple, the operation is stable, and convenient to use.

Further, the elevation adjusting device comprises a first telescopic device, a connecting rod, two sliding blocks and two sliding seats, wherein the two sliding seats are respectively fixed at the front end and the rear end of the top wall in the frame at intervals in the front-back direction, the lower end surfaces of the two sliding blocks are respectively a first inclined surface which inclines forwards and backwards and extends downwards, the upper end surfaces of the two sliding blocks are respectively a second inclined surface which is matched with the first inclined surface, the two sliding blocks are respectively and correspondingly arranged at the lower ends of the two sliding seats in a sliding mode, the second inclined surfaces are attached to the first inclined surfaces, the connecting rod is arranged along the front-back direction and is respectively connected and fixed with the two sliding blocks, the first telescopic device can be arranged at the front end of the top wall in the frame in an up-down overturning mode, the telescopic end of the first telescopic device is backwards, the front end of the connecting rod extends forwards and, the first telescopic device can drive the connecting rod to move back and forth through the telescopic end and simultaneously drive the two sliding blocks to respectively slide back and forth along the corresponding sliding seats, so that the two sliding blocks are subjected to up-and-down displacement change, and when the two sliding blocks are subjected to downward displacement, the lower ends of the two sliding blocks are respectively contacted with the upper bearing seats at the front end and the rear end of the upper roller assembled in the machine frame and downwards press the upper roller.

The beneficial effects of adopting above-mentioned further scheme are that elevation adjusting device design is simple, and convenient operation can be effective the realization compress tightly downwards to the roller to the intimate contact state between the adjustment roller set ensures that the steel band keeps good tension, does benefit to subsequent smooth and easy transport and good linking between the process.

Further, the driving mechanism comprises a motor, a double-output reduction gearbox and two connecting shafts, the motor is installed on the ground through a seat body, a motor shaft of the motor is horizontally arranged towards the rear and is in transmission connection with the input end of the double-output reduction gearbox, the double-output reduction gearbox is provided with two output ends which are distributed at intervals up and down, the two connecting shafts are respectively arranged at intervals up and down along the front-to-back direction, the front ends of the two connecting shafts are respectively in transmission connection with the two output ends of the double-output reduction gearbox through a first universal coupling, the rear ends of the two connecting shafts are provided with second universal couplings, and the second universal couplings are respectively used for being connected and assembled with the front ends of the upper roller and the lower roller which are.

The beneficial effects of adopting above-mentioned further scheme are that actuating mechanism reasonable in design, the assembly is simple, can realize the effective and good rotatory transmission of roller set.

Furthermore, two groups of clamping assemblies which are respectively used for clamping the two second universal couplings are arranged at the front end of the rack.

The beneficial effect who adopts above-mentioned further scheme is that this design does benefit to the location to the universal shaft coupling of second to make things convenient for the quick assembly disassembly operation of roller set.

Furthermore, each group of the clamping assemblies respectively comprises two second telescopic devices and two clamping blocks, the two second telescopic devices are respectively installed at the positions, corresponding to the second universal couplings, of the two sides of the front end of the rack, the telescopic ends of the two second telescopic devices are relatively close to each other, the two clamping blocks are respectively assembled at the end parts of the telescopic ends of the two second telescopic devices, the two second telescopic devices can synchronously drive the corresponding clamping blocks to relatively move to be close to or far away from each other, and the second universal couplings between the two clamping blocks are clamped or loosened.

The beneficial effects of adopting above-mentioned further scheme are that the centre gripping subassembly is arranged rationally, can effectual location second universal joint to realize the good dismouting operation of roller set, and do benefit to good removal along slide rail set spare around the roller set dismouting, need not the position of adjustment roller set once more, labour saving and time saving.

Further, the pushing device comprises a third telescopic device and a hook seat, the third telescopic device is horizontally arranged along the front-back direction, the telescopic end of the hook seat extends backwards, the hook seat is arranged at the end part of the telescopic end of the third telescopic device, the front end of one lower bearing seat positioned at the front end of the lower roller is provided with a hook matched with the hook seat, the third telescopic device can drive the hook seat to move backwards to the position corresponding to the hook or move forwards and away from the hook seat through the telescopic end, and, when the lower roller is assembled in the machine frame, the lower roller can move up and down along with the jacking device until the hook and the hook seat are mutually hooked or separated, and after the hook is mutually hooked with the hook seat, the third telescopic device can drive the lower roller and the upper roller to be pulled in forwards or pushed out of the rack backwards along the corresponding slide rail assemblies through the telescopic end.

The beneficial effect of adopting above-mentioned further scheme is that thrust unit design is simple, convenient operation, stable.

The roller set replacing operation platform is installed behind the machine frame, a slide way which is in butt joint with the slide rail component positioned below is arranged at the upper end of the platform surface of the roller set replacing operation platform, and the pushing device is used for pushing the upper roller and the lower roller out of the machine frame to the roller set replacing operation platform along the slide rail component and the slide way which respectively correspond to the upper roller and the lower roller, or pulling the upper roller and the lower roller which are assembled together into the machine frame along the slide way and the slide rail component on the roller set replacing operation platform.

The beneficial effects of adopting above-mentioned further scheme are that the orderly change operation of new and old roller set of being convenient for, the process links up more smoothly.

Further, the connecting piece is a pin shaft, and the upper bearing seat and the lower bearing seat at the front end and the rear end of the upper roller and the lower roller are respectively detachably connected in an up-and-down corresponding mode through the pin shaft.

The beneficial effect of adopting the further scheme is the connection of the upper and lower rolls and the subsequent roll group replacement operation.

Drawings

FIG. 1 is a schematic view of a top view of a pinch roll device at the outlet of a continuous rolling mill with a frame removed;

FIG. 2 is a schematic side view of the pinch roll device at the outlet of the continuous rolling mill of the present invention with the frame removed;

FIG. 3 is an enlarged view of the portion A in FIG. 2;

FIG. 4 is a side view of one of the viewing angles of the frame in the tandem mill exit pinch roll apparatus of the present invention;

fig. 5 is a side view of another view of the frame of the continuous rolling mill exit pinch roll device of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. the device comprises a rack, 2, an upper roll, 3, a lower roll, 4, a jacking device, 5, an elevation adjusting device, 6, a driving mechanism, 7, a pushing device, 8, a clamping assembly, 9, a roll set replacing operation platform, 11, a slide carriage, 21, an upper bearing seat, 31, a lower bearing seat, 51, a first telescopic device, 52, a connecting rod, 53, a sliding block, 54, a sliding seat, 61, a motor, 62, a double-output reduction gearbox, 63, a connecting shaft, 71, a third telescopic device, 72, a hook seat, 81, a second telescopic device, 82, a clamping block, 631, a first universal coupling, 632 and a second universal coupling.

Detailed Description

The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.

Example (b): as shown in fig. 1 to 5, the outlet pinch roll device of the continuous rolling mill of the present embodiment includes a frame 1, an upper roll 2, a lower roll 3, a jacking device 4, an elevation adjusting device 5, a driving mechanism 6, and a pushing device 7: the rack 1 is a hollow rack body which is horizontally arranged along the front-back direction and is provided with openings at the front end and the back end, and two groups of sliding rail assemblies which are horizontally arranged along the front-back direction are arranged in the rack body at intervals up and down; the upper roll 2 is horizontally arranged along the front-back direction, and the front end and the back end of the upper roll are respectively in sliding fit with a group of the slide rail components positioned above through an upper bearing seat 21 assembled on the upper roll; the lower roller 3 is horizontally arranged along the front-back direction, and the front end and the back end of the lower roller are respectively in sliding fit with a group of the slide rail components positioned below through a lower bearing seat 31 assembled on the lower roller; the jacking device 4 is used for contacting with a lower bearing seat 31 at the front end and the rear end of the lower roller 3 and driving the lower roller 3 to move up and down; the elevation adjusting device 5 is installed at the upper part of the inside of the frame 1, and is used for contacting with the upper bearing seat 21 at the front end and the rear end of the upper roll 2 and pressing the upper roll 2 downwards; the driving mechanism 6 is respectively connected with the front ends of the upper roller 2 and the lower roller 3 in a transmission way and simultaneously drives the upper roller 2 and the lower roller 3 to rotate reversely; the pushing device 7 is used for connecting and assembling with the lower roller 3 and pulling the upper roller 2 and the lower roller 3 assembled together by the connecting piece forward or pushing the machine frame 1 backward along the corresponding slide rail components.

The left side and the right side of the rack 1 are respectively provided with a strip-shaped notch for the steel strip to pass through, the position of the notch corresponds to the area between the upper roller 2 and the lower roller 3, and the lower edge of the strip-shaped notch on the left side and the right side of the rack 1 is provided with a slide carriage 11 for the steel strip to slide or support.

The working principle is as follows:

when the upper and lower rolls 2, 3 are assembled in the machine frame 1, specifically: the upper roll 2 and the lower roll 3 are respectively assembled on corresponding sliding rail components in a sliding way and are connected and assembled together with the driving mechanism 6 in a transmission way, then the upper roll 2 is jacked upwards through the jacking device 4, meanwhile, the upper roll 2 is pressed downwards through the elevation adjusting device 5, the steel strip penetrating between the upper roll 2 and the lower roll 3 can be ensured to be respectively tightly matched with the upper roll 2 and the lower roll 3, so that the tension of the steel strip is kept to be optimal, then the driving mechanism 6 drives the upper roll 2 and the lower roll 3 to synchronously and reversely rotate, so that the steel strip keeps good tension and a conveying state, when roll changing operation is needed, the upper bearing seat 21 and the lower bearing seat 31 corresponding to the front end and the rear end of the upper roll 2 and the lower roll 3 are connected through a connecting piece, the upper bearing seat 21 and the lower bearing seat 31 of the upper roll 2 and the lower roll 3 are respectively matched with the corresponding sliding rail components in, and the upper roll 2 and the lower roll 3 are respectively connected with the driving mechanism 6 in a transmission way, next, the pushing device 7 pushes the lower roll 3 and the upper roll 2 to synchronously run and push out from the rear part of the rack 1, next, a new roll set (the upper roll 2 and the lower roll 3 are replaced, and the upper roll 2 and the lower roll 3 which are newly replaced are assembled and connected through a connecting piece) is replaced, the pushing device 7 is connected and assembled with the lower roll 3 in the new roll set, next, the pushing device 7 slides the roll set along the corresponding slide rail component and pulls the roll set into the rack 1, then, the connection with the driving mechanism 6 is completed, the tension of the roll set on the steel strip is adjusted through the jacking device 4 and the elevation adjusting device 5 (the upper roll 2 and the lower roll 3 are tightly contacted through the up-down displacement to achieve the purpose of adjustment), the whole equipment has reasonable structural design, is simple and convenient to operate, so that the steel strip is well conveyed.

As a preferred embodiment, each set of the slide rail assemblies is composed of two slide rails horizontally arranged along the front-back direction, the two slide rails of each set are respectively and symmetrically installed at the left side and the right side inside the rack 1, the left side and the right side of each of the upper bearing seat 21 and the lower bearing seat 31 are respectively and rotatably provided with a roller in sliding fit with the corresponding slide rail, the upper roller 2 and the lower roller 3 are respectively arranged between the two corresponding slide rails when being assembled in the rack 1, and the bearing seats at the front end and the rear end of the two are respectively assembled at the upper ends of the corresponding slide rails through the rollers in a sliding manner and can slide along the slide rails, the slide rail assemblies are simple in structure and are beneficial to stable sliding of the upper.

As a preferred embodiment, the jacking device 4 comprises two jacking cylinders, the two jacking cylinders are vertically arranged at the lower part of the machine frame 1 at positions corresponding to the front and rear ends respectively, piston rods of the two jacking cylinders extend upwards, the two jacking cylinders can synchronously drive the piston rods to move upwards to contact with the lower bearing seats 31 at the front and rear ends of the lower roll 3 assembled in the machine frame 1 and jack up the lower roll 3, during operation, the two cylinders synchronously operate so as to jack up the lower bearing seats 31 at the front and rear ends of the lower roll 3, and during the downward contraction of the piston rods of the jacking cylinders, the lower roll 3 descends along with the piston rods simultaneously, so that the operation is simpler.

When in use, the jacking oil cylinder is connected with the hydraulic station and controls the oil supply and return of hydraulic oil through the controller.

In a preferred embodiment, the elevation adjustment device 5 includes a first extension device 51, a link 52, two sliders 53 and two sliders 54, the two sliders 54 are respectively fixed to the front and rear ends of the top wall of the interior of the frame 1 at a front-rear interval, the lower end surfaces of the two sliders 54 are respectively a first inclined surface extending downward from front to back, the upper end surfaces of the two sliders 53 are respectively a second inclined surface matching with the first inclined surface, the two sliders 53 are respectively slidably mounted to the lower ends of the two sliders 54 in a one-to-one correspondence manner, the second inclined surface is in contact with the first inclined surface, the link 52 is arranged in the front-rear direction and is respectively connected and fixed to the two sliders 53, the first extension device 51 is mounted to the front end of the top wall of the interior of the frame 1 in a vertically turnable manner, the extension end thereof is rearward, and the front end of the link 52 extends forward, and is hinged with the telescopic end of the first telescopic device 51 through a connecting component, the first telescopic device 51 can drive a connecting rod 52 to move back and forth through the telescopic end, and simultaneously drive the two sliding blocks 53 to respectively slide back and forth along the corresponding sliding seats 54, so that the two sliding blocks 53 generate vertical displacement change, when the two sliding blocks 53 generate the downward displacement, the lower ends of the two sliding blocks are respectively contacted with the upper bearing seats 21 at the front and rear ends of the upper roller 2 assembled in the frame 1 and press the upper roller 2 downwards, during the operation process of pressing the upper roller 2, the first telescopic device 51 drives the connecting rod 52 to drive the two sliding blocks 53 to synchronously move backwards, during the moving process, the two sliding blocks 53 respectively slide along the corresponding sliding seats 54, and due to the matching relationship of the first inclined surface and the second inclined surface, when the two sliding blocks 53 slide backwards along the corresponding sliding seats 54, two sliders 53 also have downward displacement change simultaneously, thereby acting on the upper bearing seat 21 at the front and rear ends of the upper roller 2 downwards, the purpose of pressing the upper roller 2 downwards is realized, of course, the first telescopic device 51 drives the connecting rod 52 to slide forwards, so that the two sliders 53 slide forwards, thereby having displacement change relative to the slide seat 54 to move upwards, so that the sliders 53 are separated from the corresponding upper bearing seats 21, the whole elevation adjusting device 5 has reasonable design, the operation is very simple and convenient, and the gap and the tight contact state between the upper roller 2 and the lower roller 3 can be effectively adjusted.

The first telescopic device 51 is a telescopic cylinder, and is connected to a hydraulic station when in use, and the controller controls oil supply and oil return of hydraulic oil.

In a preferred embodiment, the driving mechanism 6 includes a motor 61, a dual output reduction box 62, and two coupling shafts 63, the motor 61 is mounted on the ground through a base, a motor shaft thereof is horizontally disposed toward the rear, and is drivingly connected to input ends of the dual output reduction box 62, the dual output reduction box 62 has two output ends spaced apart vertically, the two coupling shafts 63 are vertically spaced apart vertically along the front-rear direction, front ends of the two coupling shafts are drivingly connected to the two output ends of the dual output reduction box 62 through first universal couplings 631, respectively, rear ends of the two coupling shafts 63 are provided with second universal couplings 632, and the second universal couplings 632 are respectively connected to front ends of the upper and lower rollers 2 and 3 mounted in the machine frame 1.

In a preferred embodiment, two sets of clamping assemblies 8 for clamping two second universal couplings 632 are provided at the front end of the frame 1, and the design is aimed at: when needs roll change, carry out the centre gripping location to two second universal joint 632 through centre gripping subassembly 8 to ensure can not take place the displacement when going up roller 2 and lower roll 3 dismantlement and change, ensure that subsequent good releases change, and, until between the roller 2 and the lower roll 3 of having more renewed, second universal joint 632 remains throughout in the tight location state of clamp of centre gripping subassembly 8, and it is accurate to fix a position when guaranteeing the dismouting, what need explain is: no matter in the process of changing or loading the rollers, the point of the clamping component 8 for clamping and positioning the second universal coupling 632 is that the upper roller 2 and the lower roller 3 are in the position in sliding fit with the corresponding sliding rail component, so that after the upper roller 2 and the lower roller 3 are detached and connected with the corresponding second universal coupling 632, the upper roller 2 and the lower roller 3 can slide back and forth under the action of the pushing device 7 along the corresponding sliding rail component without adjusting the positions.

As a preferred embodiment, each group of the clamping assemblies 8 respectively comprises two second telescoping devices 81 and two clamping blocks 82, the two second telescoping devices 81 are respectively installed at two sides of the front end of the rack 1 corresponding to the positions of the second universal couplings 632, the telescoping ends of the two second telescoping devices 81 are relatively close to each other, the two clamping blocks 82 are respectively assembled at the end parts of the telescoping ends of the two second telescoping devices 81, the two second telescoping devices 81 can synchronously drive the corresponding clamping blocks 82 to relatively move close to or away from each other so as to clamp or release the second universal couplings 632 therebetween, the design is reasonable and simple, when each group of the clamping assemblies 8 is clamped and positioned to the corresponding second universal couplings 632, the two second telescoping devices 81 synchronously operate, so that the two clamping blocks 82 are synchronously close to and clamp the second universal couplings 632, and when the clamping assemblies are released, the two second telescopic devices 81 are also operated synchronously, so that the two clamping blocks 82 move relatively far synchronously.

The second telescopic device 81 is a telescopic cylinder, and is connected to the hydraulic station when in use, and the controller controls the oil supply and return of the hydraulic oil.

In a preferred embodiment, the pushing device 7 includes a third telescoping device 71 and a hook holder 72, the third telescoping device 71 is horizontally disposed in a front-rear direction, a telescoping end of the third telescoping device extends rearward, the hook holder 72 is mounted on a telescoping end of the third telescoping device 71, a hook 311 matched with the hook holder 72 is mounted on a front end of one of the lower bearing blocks 31 at a front end of the lower roller 3, the third telescoping device 71 can drive the hook holder 72 to move rearward to a position corresponding to the hook 311 or move forward and away from the hook holder 72 through the telescoping end, and when the lower roller 3 is mounted in the machine frame 1, the lower roller 3 can move up and down along the lifting device 4 until the hook 311 and the hook holder 72 are engaged with each other or disengaged from each other, and when the hook 311 and the hook holder 72 are engaged with each other, the third telescoping device 71 can drive the lower roller 3 and the upper roller 2 to pull forward or pull in along the corresponding rail assemblies through the telescoping ends The roller group is replaced, the upper roller 2 and the lower roller 3 are both arranged in the machine frame 1, bearing seats at the front ends and the rear ends of the upper roller and the lower roller are connected and assembled through connecting pieces, the lower roller 3 and the upper roller 2 are upwards jacked by the jacking device 4, the lower roller 3 is upwards separated from the corresponding sliding rail component, at the moment, the telescopic end of the third telescopic device 71 extends backwards until the hook seat 72 extends to the position below the hook 311, then, the lower roller 3 and the upper roller 2 are driven by the jacking device 4 to fall down, the hook 311 falls on the hook seat 72 to complete the hooking of the upper roller and the lower roller (in the state, the upper roller 2 and the lower roller 3 are in sliding fit with the corresponding sliding rail component), then, the connection between the second universal coupling 632 and the corresponding upper roller 2 and lower roller 3 is released, the upper roller 2 is driven by the third telescopic device 71 to drive the upper roller 2 to be driven by the rear end of the machine frame 1, and, and the hook 311 on the lower roll 3 which is newly replaced is hooked with the hook seat 72, then the slide rail component corresponding to the newly replaced roll set is pulled into the rack through the third telescopic device 71, and the roll replacement operation of the roll set can be completed by assembling the roll set and the driving mechanism 6, so that the whole operation process is mechanically and automatically completed, the efficiency is high, and the risk is small.

The third telescopic device 71 is a telescopic cylinder, and is connected to the hydraulic station when in use, and the controller controls the oil supply and the oil return of the hydraulic oil.

As a preferred embodiment, the roll set replacing operation platform 9 is further provided, the roll set replacing operation platform 9 is installed at the rear part of the machine frame 1, the upper end of the platform surface is provided with a slideway which is butted with the slide rail component positioned at the lower part, the pushing device 7 is used for pushing the upper roll 2 and the lower roll 3 out of the machine frame 1 to the roll set replacing operation platform 9 along the corresponding slide rail component and the slideway, or pulling the upper roll 2 and the lower roll 3 which are assembled together into the machine frame 1 along the slideway and the slide rail component on the roll set replacing operation platform 9, when the roll is replaced, the roll set is pushed out from the machine frame 1 by the pushing device 7 and slides to the roll set replacing operation platform 9 along the slideway, the arrangement of a new roll set is completed on the roll set replacing operation platform 9, and the subsequent assembly interface is completed by pulling the new replaced roll set into the machine frame 1 by the pushing device 7, the roller set replacing operation platform 9 is beneficial to the replacing operation of the roller set, and the good and orderly replacing procedure butt joint of the new roller set and the old roller set is completed.

In a preferred embodiment, the connecting member is a pin, and the upper bearing housing 21 and the lower bearing housing 31 at the front and rear ends of the upper roll 2 and the lower roll 3 are detachably connected to each other by the pin in an up-and-down correspondence.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims (10)

1. The utility model provides a tandem mill export pinch roll device which characterized in that: the device comprises a rack (1), an upper roller (2), a lower roller (3), a jacking device (4), an elevation adjusting device (5), a driving mechanism (6) and a pushing device (7): the rack (1) is a hollow rack body which is horizontally arranged along the front-back direction and is provided with openings at the front end and the back end, and two groups of sliding rail assemblies which are horizontally arranged along the front-back direction are arranged in the rack body at intervals up and down; the upper roll (2) is horizontally arranged along the front-back direction, and the front end and the back end of the upper roll are respectively in sliding fit with a group of sliding rail components positioned above the upper roll through an upper bearing seat (21) assembled on the upper roll; the lower roller (3) is horizontally arranged along the front-back direction, and the front end and the back end of the lower roller are respectively in sliding fit with a group of the sliding rail components positioned below through a lower bearing seat (31) assembled on the lower roller; the jacking device (4) is used for contacting with lower bearing blocks (31) at the front end and the rear end of the lower roller (3) and driving the lower roller (3) to move up and down; the elevation adjusting device (5) is arranged at the upper part inside the rack (1) and is used for contacting with upper bearing seats (21) at the front end and the rear end of the upper roller (2) and pressing the upper roller (2) downwards; the driving mechanism (6) is used for being respectively in transmission connection with the front ends of the upper roller (2) and the lower roller (3) and simultaneously driving the upper roller (2) and the lower roller (3) to rotate reversely; the pushing device (7) is used for being connected with the lower roller (3) and assembling the upper roller (2) and the lower roller (3) which are assembled together through a connecting piece, and the upper roller and the lower roller are pulled forwards or pushed backwards out of the machine frame (1) along the corresponding sliding rail assemblies.

2. The tandem mill outlet pinch roll device of claim 1, wherein: each group of the sliding rail assemblies is composed of two sliding rails horizontally arranged in the front-back direction, the two sliding rails in each group are symmetrically arranged on the left side and the right side of the inside of the rack (1), and rollers in sliding fit with the corresponding sliding rails are rotatably arranged on the left side and the right side of each upper bearing seat (21) and each lower bearing seat (31) respectively.

3. The tandem mill outlet pinch roll device of claim 1, wherein: the jacking device (4) comprises two jacking oil cylinders, wherein the two jacking oil cylinders are vertically arranged at the positions of the lower part of the rack (1) corresponding to the front end and the rear end respectively, piston rods of the two jacking oil cylinders extend upwards, and the two jacking oil cylinders can synchronously drive the piston rods to move upwards to be in contact with lower bearing seats (31) at the front end and the rear end of the lower roller (3) in the rack (1) and jack up the lower roller (3).

4. The tandem mill outlet pinch roll device of claim 1, wherein: elevation adjusting device (5) includes first telescoping device (51), connecting rod (52), two slider (53) and two slide (54), two spaced fixes around slide (54) respectively the front and back end of frame (1) inside roof, and the lower terminal surface of the two is by preceding first inclined plane that inclines downwardly extending backward, two the up end of slider (53) be with the identical second inclined plane of first inclined plane, two slider (53) one-to-one sliding mounting respectively in two slide (54) lower extreme, just the second inclined plane is laminated with first inclined plane mutually, connecting rod (52) set up along the fore-and-aft direction, and respectively with two slider (53) joint fixation, the installation that first telescoping device (51) can overturn from top to bottom in the front end of frame (1) inside roof, its flexible end is backward, the front end of the connecting rod (52) extends forwards and is hinged with the telescopic end of the first telescopic device (51) through a connecting component, the first telescopic device (51) can drive the connecting rod (52) to move forwards and backwards through the telescopic end and simultaneously drive the two sliding blocks (53) to respectively slide forwards and backwards along the corresponding sliding seats (54), so that the two sliding blocks (53) are displaced up and down, and when the two sliding blocks (53) are displaced downwards, the lower ends of the two sliding blocks are respectively contacted with the upper bearing seats (21) which are assembled at the front end and the rear end of the upper roller (2) in the rack (1) and downwards press the upper roller (2).

5. The tandem mill outlet pinch roll device of claim 1, wherein: actuating mechanism (6) are including motor (61), dual output reducing gear box (62) and two even axle (63), motor (61) are installed subaerial through the pedestal, and its motor shaft sets up towards the rear level, and with the input transmission of dual output reducing gear box (62) is connected, dual output reducing gear box (62) have two output from top to bottom interval distribution, two even axle (63) set up along the fore-and-aft direction interval from top to bottom respectively, the front end of the two respectively through first universal joint (631) with two output transmission of dual output reducing gear box (62) are connected, two even the rear end of axle (63) install second universal joint (632), second universal joint (632) are used for respectively with the assembly in frame (1) the assembly is connected to the front end of last roller (2) and lower roll (3).

6. The tandem mill outlet pinch roll device of claim 5, wherein: the front end of the frame (1) is provided with two groups of clamping assemblies (8) which are respectively used for clamping the two second universal couplings (632).

7. The tandem mill outlet pinch roll device of claim 6, wherein: every group centre gripping subassembly (8) include two second telescoping device (81) and two clamp splice (82), two respectively second telescoping device (81) install respectively in the both sides of frame (1) front end correspond second universal joint (632)'s position, the flexible end of the two is close to relatively, two clamp splice (82) assemble respectively in two the flexible end tip of second telescoping device (81), two but second telescoping device (81) synchro-driven corresponds clamp splice (82) relative movement is close to or keeps away from to press from both sides tightly or loosen and be in between the two second universal joint (632).

8. The tandem mill outlet pinch roll device of claim 1, wherein: the pushing device (7) comprises a third telescopic device (71) and a hook seat (72), the third telescopic device (71) is horizontally arranged along the front-back direction, the telescopic end of the third telescopic device extends backwards, the hook seat (72) is installed at the end part of the telescopic end of the third telescopic device (71), a hook (311) matched with the hook seat (72) is installed at the front end of one lower bearing seat (31) positioned at the front end of the lower roller (3), the third telescopic device (71) can drive the hook seat (72) to move backwards to a position corresponding to the hook (311) or move forwards to be far away through the telescopic end, and when the lower roller (3) is assembled in the rack (1), the lower roller (3) can move up and down along with the jacking device (4) until the hook (311) and the hook seat (72) are mutually hooked or separated, and after the hook (311) and the hook seat (72) are mutually hooked, the third telescopic device (71) can drive the lower roller (3) and the upper roller (2) to be pulled forwards or pushed backwards out of the rack (1) along the corresponding sliding rail assemblies through the telescopic ends.

9. A tandem mill exit pinch roll apparatus as claimed in any one of claims 1 to 8, wherein: still change operation platform (9) including the roller set, roller set change operation platform (9) install in the rear of frame (1), its mesa upper end be equipped with be located the below the slide of the mutual butt joint of slide rail set, thrust unit (7) be used for with go up roller (2) and lower roll (3) along the slide rail set that corresponds separately and the slide is followed frame (1) is released extremely on roller set change operation platform (9), or by on roller set change operation platform (9) will assemble together go up roller (2) and lower roll (3) are followed slide and slide rail set draw in frame (1).

10. A tandem mill exit pinch roll apparatus as claimed in any one of claims 1 to 8, wherein: the connecting piece is a pin shaft, and the upper bearing seat (21) and the lower bearing seat (31) at the front end and the rear end of the upper roller (2) and the lower roller (3) are respectively detachably connected in an up-and-down corresponding mode through the pin shaft.

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