CN210614647U

CN210614647U - Hot-rolled strip steel endless rolling intermediate billet connecting device

Info

Publication number: CN210614647U
Application number: CN201921181622.3U
Authority: CN
Inventors: 高爱民; 韩会全; 周民; 王万慧
Original assignee: CISDI Technology Research Center Co Ltd
Current assignee: CISDI Technology Research Center Co Ltd
Priority date: 2019-07-25
Filing date: 2019-07-25
Publication date: 2020-05-26
Anticipated expiration: 2029-07-25

Abstract

The utility model relates to a blank connecting device in middle of hot rolling belted steel headless rolling belongs to belted steel shearing crimping technical field. The eccentric crankshaft in the connecting device is arranged on a fixed frame and a swinging frame, a hydraulic driving device is connected with the eccentric crankshaft and an upper shearing and crimping device, the bottom of the swinging frame is connected with a lower shearing and crimping device, and the eccentric crankshaft is driven by an eccentric crankshaft transmission system. The horizontal swinging of the swinging frame and the lifting of the lower shearing and crimping device are realized through the driving of an eccentric crankshaft; the lifting control of the upper shearing and crimping device is realized through a hydraulic driving device; a hydraulic balance system is adopted to accurately position the hydraulic driving device, and two groups of worm and gear mechanisms with the same speed ratio are adopted to realize that the swing frame swings according to a fixed deflection angle, so that the shearing and compression joint effect is ensured; thereby greatly simplifying the structure of the connecting device while realizing good connecting effect of the intermediate blank.

Description

Hot-rolled strip steel endless rolling intermediate billet connecting device

Technical Field

The utility model belongs to the technical field of the crimping is cuted to belted steel, concretely relates to blank connecting device in middle of hot rolling belted steel headless rolling.

Background

The traditional hot continuous rolling finishing mill group for plate and strip rolls a single intermediate billet, and the processes of threading, accelerated rolling, decelerated rolling, steel throwing, tail flicking and the like cannot be avoided when the intermediate billet enters the finishing mill group. Therefore, the thickness difference of the head and the tail of the strip steel and the threading quality uniformity are difficult to ensure, and the rolling operation rate and the yield are also limited to a certain extent.

With the higher demands on the quality of thin plates in the industries of automobiles, household appliances and the like, the size, shape precision, surface and internal quality become equally important quality keys. The hot-rolled strip steel endless rolling technology shows incomparable superiority of traditional tropical rolling in the aspects of ultrathin tropical rolling, plate thickness precision control, stability control of plate and strip lengthening performance, productivity improvement and the like.

The intermediate billet connecting technology is a key technology of endless rolling, and currently comprises the following steps: a lap-rolling press-bonding method, a shear press-bonding method, a welding method, a mechanical joining method, a reduction flame treatment joining method, a direct-energization joining method, an induction heating joining method, a laser welding method, and the like. The shearing and crimping method is favored because of its advantages of fast pace, small occupied area, excellent connecting effect, etc.

The current common mode adopts a double-input seven-link mechanism, and a special coincidence quantity adjusting device is required to be arranged, so that the structure is complex, the integral structure is complex, the shearing angle is difficult to ensure, and the connecting effect of the intermediate blank can be influenced.

SUMMERY OF THE UTILITY MODEL

In view of this, an object of the present invention is to provide a hot rolled strip steel endless rolling intermediate billet connecting device, so as to meet the requirement that the shearing and crimping device always ensures that the upper and lower shearing blades are located at the same shearing angle with the intermediate billet in the process of shearing and crimping the intermediate billet.

In order to achieve the above purpose, the utility model provides a following technical scheme:

a hot-rolled strip steel endless rolling intermediate billet connecting device comprises an upper shearing and crimping device and a lower shearing and crimping device which are arranged oppositely in a high-low mode; the device also comprises an eccentric crankshaft, an eccentric shaft, a fixed frame, a swinging frame, a hydraulic driving device, a hydraulic balance system and a synchronous mechanism;

the eccentric crankshaft is provided with an eccentric section I and an eccentric section II which are arranged at intervals, the swing frame is arranged on the inner side of the fixed frame, two end heads of the eccentric crankshaft can be rotatably arranged on the fixed frame, and the eccentric section I and the eccentric section II between the two end heads can be rotatably arranged on the swing frame; the lower shearing and crimping device is connected with the lower part of the swinging frame and driven by the swinging frame, and the upper shearing and crimping device is connected with a shaft section between the eccentric section I and the eccentric section II through a hydraulic driving device;

the eccentric shaft comprises a shaft section I, a shaft section II and an eccentric section III, and the eccentric section III is positioned between the shaft section I and the shaft section II; the eccentric shaft is arranged below the eccentric crankshaft, and the eccentric section III penetrates through a shaft hole in the swinging frame and is rotatably connected with the swinging frame; the shaft section I and the shaft section II are correspondingly and rotatably connected with a shaft hole on the fixed frame;

the synchronous mechanism comprises an upper worm gear arranged at the tail end of the eccentric crankshaft and a lower worm gear arranged at the tail end of the eccentric shaft, the upper worm gear is connected with the lower worm gear through a connecting shaft, and the eccentric crankshaft and the eccentric shaft realize synchronous transmission through the synchronous mechanism;

the hydraulic balance systems are symmetrically arranged on two sides of the upper shearing and crimping device and positioned on the outer side of the swinging frame, the upper end of each hydraulic balance system is connected with the swinging frame, and the lower end of each hydraulic balance system is connected with the upper shearing and crimping device; the two ends of the upper shearing and crimping device are in sliding fit with the swinging frame.

Further, the hydraulic balance system mainly comprises an upper support, a lower connecting seat and a hydraulic cylinder I; the tail end of the hydraulic cylinder I is connected with the upper support through a sliding bearing, and the head end of the hydraulic cylinder I is hinged to the outer side face of the lower connecting seat through a hinge joint; the inner side surface of the lower connecting seat is connected with a support wing plate, and sliding plates are oppositely and parallelly arranged on the left side and the right side of the support wing plate.

Further, the upper shearing and crimping device comprises an upper tool apron, the lower part of the upper tool apron is provided with an upper shearing blade, a support wing plate in each group of hydraulic balance systems is connected with the side surface of the upper tool apron, and a sliding plate on the side surface of the support wing plate is in sliding fit with the swinging frame; the lower shearing and crimping device comprises a lower cutter holder, a lower shearing blade is arranged at the top of the lower cutter holder, and two sides of the lower cutter holder are connected with the swinging frame and driven by the swinging frame to swing and lift.

Furthermore, the hydraulic driving device mainly comprises a bearing seat and a hydraulic cylinder II; a hydraulic cylinder body in the hydraulic cylinder II is matched with a bearing seat positioned above the hydraulic cylinder body to form a shaft hole for sleeving a shaft section between the eccentric section I and the eccentric section II, and the bearing seat is detachably connected with the hydraulic cylinder body; a pressure head is arranged on the surface of the extending end head of a hydraulic rod in the hydraulic cylinder II, and the lower end surface of the pressure head is of an inner spherical structure; the upper tool apron is provided with a pressing block, the top of the pressing block is of a spherical structure, the pressing block and the inner spherical structure of the lower end face of the pressing head are correspondingly matched, the pressing head is embedded in a retaining ring positioned on the upper tool apron, and the retaining ring is detachably connected with the upper tool apron.

Furthermore, the upper worm gear mainly comprises a worm gear I sleeved at the tail end of the eccentric crankshaft, a worm I meshed with the worm gear I, and a worm support I used for mounting the worm I; the worm support I is fixedly arranged on the fixed frame; the lower worm gear II mainly comprises a worm gear II sleeved at the tail end of the eccentric shaft, a worm II meshed with the worm gear II and a worm support II used for mounting the worm II; the worm support II is also fixedly arranged on the fixed frame; the upper end of the connecting shaft is connected with the worm I through an upper coupler, and the lower end of the connecting shaft is connected with the worm II through a lower coupler.

Furthermore, the tail end of the eccentric crankshaft is provided with an absolute value encoder.

Furthermore, the eccentric amount of the eccentric section III on the eccentric shaft is the same as the eccentric amounts of the eccentric section I and the eccentric section II on the eccentric crankshaft.

Further, still include eccentric crankshaft transmission system, eccentric crankshaft transmission system mainly comprises motor and reducing gear box, and the motor passes through shaft coupling I and links to each other with reducing gear box one end, and the reducing gear box other end passes through shaft coupling II and links to each other with the eccentric crankshaft head end that stretches out fixed frame.

Further, be equipped with the tape tail closing device on the crimping device of cuting on, tape tail closing device is including setting up two telescopic drive mechanism on the blade holder, and two telescopic drive mechanism bottoms even have the pressure strip that is located the blade holder below.

The beneficial effects of the utility model reside in that:

the horizontal swinging of the swinging frame and the lifting of the lower shearing and crimping device are realized through the driving of an eccentric crankshaft; the lifting control of the upper shearing and crimping device is realized through a hydraulic driving device; a hydraulic balance system is adopted to accurately position the hydraulic driving device, and meanwhile, in the process of shearing and crimping, the state of the upper shearing and crimping device is detected, judged and corrected in real time; two groups of worm and gear mechanisms with the same speed ratio are adopted to realize that the swing frame swings according to a fixed deflection angle, so that the shearing and compression joint effect is ensured; thereby greatly simplifying the structure of the connecting device while realizing good connecting effect of the intermediate blank.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and/or combinations particularly pointed out in the appended claims.

Drawings

For the purposes of promoting a better understanding of the objects, features and advantages of the invention, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic structural view of the hot rolled strip endless rolling intermediate billet connecting device;

FIG. 2 is a schematic view of the engagement of the eccentric shaft with the swing frame;

FIG. 3 is a schematic view of an eccentric crankshaft;

FIG. 4 is a schematic structural view of the eccentric shaft;

FIG. 5 is a schematic structural diagram of a hydraulic drive device;

FIG. 6 is a schematic diagram of a hydraulic balancing system;

FIG. 7 is a schematic structural view of a synchronizing mechanism;

fig. 8 is a schematic view of fig. 7 taken along direction a.

Reference numerals:

an upper shearing and crimping device-1, a lower shearing and crimping device-2, an eccentric crankshaft-3, an eccentric shaft-4, a fixed frame-5, a swinging frame-6, a hydraulic driving device-7, a hydraulic balance system-8, a synchronous mechanism-9, an eccentric crankshaft transmission system-10 and a tail-carrying pressing device-11;

in the upper shear crimping device: an upper tool apron-101;

eccentric crankshaft and eccentric shaft: eccentric section I-301, eccentric section II-302, shaft section I-401, shaft section II-402, eccentric section III-403;

in the hydraulic drive device: a bearing seat-701, a hydraulic cylinder-702, a hydraulic rod-703, a pressure head-704, a pressure block-705, a baffle ring-706 and a stud-707;

in the hydraulic balance system: an upper support-801, a lower connecting seat-802, a hydraulic cylinder I-803, a support wing plate-804 and a sliding plate-805;

in the synchronizing mechanism: an upper worm gear-91, a worm gear I-911, a worm I-912, a worm support I-913, an upper coupler-914, an upper protective cover-915, a lower worm gear-92, a worm gear II-921, a worm II-922, a worm support II-923, a lower coupler-924, a lower protective cover-925, a connecting shaft-93 and an absolute value encoder-94;

in the eccentric crankshaft transmission system: a motor-1001, a reduction gearbox-1002, a coupling I-1003 and a coupling II-1004;

in the tape tail closing device: a telescopic driving mechanism-1101 and a pressing plate-1102.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the features in the following embodiments and examples may be combined with each other without conflict.

Wherein the showings are for the purpose of illustrating the invention only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in any way limiting the scope of the invention; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "front", "back", etc., indicating directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for convenience of description and simplification of description, but it is not intended to indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore, the terms describing the positional relationships in the drawings are only used for illustrative purposes and are not to be construed as limiting the present invention, and those skilled in the art can understand the specific meanings of the terms according to specific situations.

Referring to fig. 1 to 8, a hot rolled strip endless rolling intermediate billet connecting device includes an upper shearing and crimping device 1 and a lower shearing and crimping device 2 which are arranged oppositely and vertically; the device also comprises an eccentric crankshaft 3, an eccentric shaft 4, a fixed frame 5, a swinging frame 6, a hydraulic driving device 7, a hydraulic balance system 8 and a synchronous mechanism 9.

In the connecting device, the eccentric crankshaft is driven and transmitted by an eccentric crankshaft transmission system to realize the rotation of the eccentric crankshaft; the fixed frame 5 is used to provide support for the eccentric crankshaft 3 and the synchronizing mechanism 9. The eccentric crankshaft 3 is arranged on the fixed frame 5 through a bearing seat, two eccentric sections on the eccentric crankshaft are arranged on the swinging frame, so that the eccentric crankshaft pair drives the lower shearing and crimping device 2 through the swinging frame 6, and a circular shaft section between the two eccentric sections is connected with the upper shearing and crimping device through a hydraulic driving device 7. When the eccentric crankshaft rotates, the swinging frame can be driven to swing horizontally, and meanwhile, the lower shearing and crimping device does lifting motion. The synchronous mechanism is arranged at the tail part of the eccentric crankshaft and can drive the swinging frame to swing synchronously under the drive of the eccentric crankshaft.

The top of the swing frame is connected with the eccentric crankshaft, the side surface of the swing frame is connected with the eccentric shaft, and the eccentric crankshaft and the eccentric shaft synchronously rotate through a synchronous mechanism to realize the swing of the swing frame at a fixed angle; the bottom of the swing frame is connected with the lower shearing and crimping device, so that the lower shearing and crimping device and the swing frame move synchronously.

Specifically, the eccentric crankshaft 3 is provided with two eccentric sections I301 and II 302 which are arranged at intervals, the eccentric directions and the eccentric amounts of the two eccentric sections are completely the same, a non-eccentric circular shaft section is arranged between the two eccentric sections, the swinging frame 6 is arranged on the inner side of the fixed frame 5, two end heads of the eccentric crankshaft 3 are rotatably arranged on the fixed frame 5 through bearing seats, and the eccentric section I301 and the eccentric section II 302 between the two end heads are rotatably arranged on the swinging frame 6; the lower shearing and crimping device 2 is connected with the lower part of the swinging frame 6 and driven by the swinging frame, and the upper shearing and crimping device 1 is connected with the circular shaft section through a hydraulic driving device 7. When the eccentric crankshaft rotates, the swinging frame is driven to swing horizontally, and the swinging frame drives the lower shearing and crimping device 2 to swing. And the lifting of the upper shearing and crimping device is driven by a hydraulic driving device.

The eccentric shaft 4 comprises a shaft section I401, a shaft section II 402 and an eccentric section III 403, wherein the eccentric section III 403 is positioned between the shaft section I401 and the shaft section II 402; the eccentric shaft is positioned below the eccentric crankshaft, and the eccentric section III penetrates through a shaft hole formed in the side face of the swinging frame 6 and is rotatably connected with the swinging frame; the shaft section I401 and the shaft section II 402 are correspondingly and rotatably connected with the shaft hole on the fixed frame. The eccentric amount of the eccentric section III 403 on the eccentric shaft is the same as that of the eccentric section I301 and the eccentric section II 302 on the eccentric crankshaft.

The non-eccentric shaft sections I401 and II 402 on the eccentric shaft penetrate through the shaft holes of the fixed frame, sliding bearings are correspondingly arranged between the shaft sections I401 and II 402 and the shaft holes to realize the installation and positioning of the eccentric shaft 4, the middle part is an eccentric section III 403 which is connected with the shaft holes on the side surface of the swinging frame, and thus, the eccentric crankshaft and the eccentric shaft which are arranged in parallel form a parallelogram connecting rod mechanism together with the swinging frame; under the action of the synchronizing mechanism, the rotating angles between the eccentric crankshaft and the eccentric shaft can be kept consistent all the time, so that the same shearing angle between the upper and lower shearing blades and the intermediate blank is always ensured in the process of shearing and crimping the intermediate blank.

The synchronizing mechanism 9 includes an upper worm gear 91 provided at the tail end of the eccentric crankshaft 3 and a lower worm gear 92 provided at the tail end of the eccentric shaft 4. The upper worm gear 91 mainly comprises a worm gear I911 sleeved at the tail end of the eccentric crankshaft 3, a worm I912 meshed with the worm gear I, and a worm support I913 for mounting the worm I; the worm support I913 is fixedly arranged on the outer side of the fixed frame; the lower worm gear II 92 is the same as the upper worm gear 91 in composition, and mainly comprises a worm gear II 921 sleeved at the tail end of the eccentric shaft 4, a worm II 922 meshed with the worm gear II and a worm support II 923 used for mounting the worm II; the worm support II 923 is also fixedly arranged on the outer side of the fixed frame; the upper worm gear and the lower worm gear are connected through a connecting shaft 93, the upper end of the connecting shaft 93 is connected with a worm I912 through an upper coupler 914, and the lower end of the connecting shaft 93 is connected with a worm II 922 through a lower coupler 924. The synchronous mechanism 9 can transmit the rotation angle of the eccentric crankshaft to the eccentric shaft; the upper worm gear 91 and the lower worm gear 92 have the same speed ratio, so that the worm gear I911 and the worm gear II 921 have the same rotating speed, and synchronous transmission of the eccentric crankshaft and the eccentric shaft is realized.

In the synchronizing mechanism 9, the worm wheel i 911, the worm i 912 and the upper coupling 914 are covered and buckled in the upper protective cover 915, the worm wheel ii 921, the worm ii 922 and the lower coupling 924 are covered and buckled in the lower protective cover 925, the upper protective cover 915 and the lower protective cover 925 are both arranged on the fixed frame, and two ends of the connecting shaft 93 correspondingly penetrate through the upper protective cover 915 and the lower protective cover 925. The protective cover can play the effect of dustproof, protection inner structure.

The tail end of the eccentric crankshaft is provided with an absolute value encoder 94, and the absolute value encoder 94 is installed at the tail of the eccentric crankshaft and used for accurately controlling the rotation angle of the eccentric crankshaft and ensuring the matching with the unit speed.

Two groups of hydraulic balance systems 8 are symmetrically arranged on two sides of the upper shearing and crimping device 1 and are positioned on the outer side of the swinging frame 6, the upper end of each group of hydraulic balance systems is connected with the swinging frame 6, and the lower end of each group of hydraulic balance systems is connected with the upper shearing and crimping device 2; the two ends of the upper shearing and crimping device 1 are in sliding fit with the swinging frame.

Specifically, each group of hydraulic balance system 8 mainly comprises an upper support 801, a lower connection seat 802 and a hydraulic cylinder I803; the tail end of the hydraulic cylinder I803 is connected with the upper support 801 through a sliding bearing, and the head end of the hydraulic cylinder I is hinged to the outer side face of the lower connecting seat 802 through a hinge joint; the inner side surface of the lower connecting seat is connected with a support wing plate 804, and sliding plates 805 are oppositely and parallelly arranged on the left side surface and the right side surface of the support wing plate 804. Through the hydraulic cylinder I803 arranged on the swing frame, the horizontal shearing component force borne by the swing frame can be transferred to the vertical direction, so that the deformation caused by the overlarge horizontal stress of the swing frame is avoided, the safety and reliability of the equipment are greatly improved, and the shearing and crimping effect is improved.

This hydraulic balance system goes up blade holder 101 in shearing crimping device 1 through two pneumatic cylinders I803 common control to keep shearing crimping device's stability, avoid shearing the crimping effect that influences because the atress is uneven in shearing crimping process. All have linear displacement sensor on two pneumatic cylinders I803, be used for carrying out accurate positioning to it on the one hand, but on the other hand real-time detection cuts the stationarity of blade holder in-process, judges in real time and corrects the state of cutting crimping device.

The upper shearing and crimping device 1 comprises an upper tool apron 101, an upper shearing blade is arranged at the lower part of the upper tool apron 101, support wing plates 804 in each group of hydraulic balance systems are connected with two side faces of the upper tool apron 101, and sliding plates 805 on two side faces of each support wing plate 804 are in sliding fit with sliding grooves in the middle of a swinging frame. The lower shearing and crimping device 2 comprises a lower cutter holder, a lower shearing blade is arranged at the top of the lower cutter holder, and two sides of the lower cutter holder are connected with the swinging frame and driven by the swinging frame to swing and lift.

The upper shearing and crimping device moves up and down under the driving of the hydraulic driving device 7, the lower shearing and crimping device swings and goes up and down along with the swinging of the swinging frame driven by the eccentric crankshaft, and the circular shaft section of the eccentric crankshaft on which the hydraulic driving device 7 is arranged and the shaft section in the fixed frame are coaxial, so that the upper shearing and crimping device and the lower shearing and crimping device are respectively controlled. Under the drive of the eccentric crankshaft, the lower shearing and crimping device 2 swings and goes up and down, the upper shearing and crimping device is driven by the hydraulic drive device 7 to go up and down, the upper shear blade and the lower shear blade are arranged oppositely, and the shearing and crimping process of the intermediate blank is realized through cooperation of the upper shear blade and the lower shear blade.

The hydraulic driving device 7 mainly comprises a bearing seat 701 and a hydraulic cylinder II; a hydraulic cylinder body 702 in the hydraulic cylinder II is matched with a bearing seat 701 positioned above the hydraulic cylinder body to form a shaft hole for sleeving a round shaft section (a shaft section between an eccentric section I and an eccentric section II on an eccentric crankshaft), and the bearing seat is detachably connected with the hydraulic cylinder body; a pressure head 704 is arranged on the surface of the extending end head of a hydraulic rod 703 in the hydraulic cylinder II, and the lower end surface of the pressure head 704 is of an inner spherical structure; a pressing block 705 is arranged on an upper tool apron 101 in the upper shearing and pressing device, the top of the pressing block 705 is of a spherical structure, the spherical structure can be correspondingly matched with an inner spherical structure on the lower end face of the pressing head, the pressing head 704 is embedded in a retaining ring 706 on the upper tool apron 101, and the retaining ring 706 is detachably connected with the upper tool apron 101. In the device, the pressure head is matched with the spherical surface of the pressing block, and the pressure head is limited in the groove hole of the pressing block by the retaining ring, so that the pressure head and the pressing block can move in a small range in the groove hole of the retaining ring.

Specifically, the bearing seat 701 and the hydraulic cylinder 702 are fixed on the eccentric crankshaft through a stud 707, a pressure head 704 is arranged at the top end of the hydraulic rod 703, and the pressure head 704 is in spherical fit with a pressure block 705 on the upper tool apron 101, so that the pressure angle of the upper tool apron 101 can be automatically adjusted along with the swinging of the swinging frame.

As a further optimization of the hydraulic driving device 7, the pressure head 704 or the pressure head is provided with a lubricating groove communicated with the spherical surface, and glycerin can be injected from the outside to lubricate the spherical contact surface, so as to avoid abrasion.

The eccentric crankshaft 3 is driven to rotate through an eccentric crankshaft transmission system, the eccentric crankshaft transmission system 10 mainly comprises a motor 1001 and a reduction gearbox 1002, the motor 1001 is connected with one end of the reduction gearbox through a coupler I1003, and the other end of the reduction gearbox is connected with the end of the eccentric crankshaft extending out of the fixed frame through a coupler II 1004.

Still including setting up the tape tail closing device 11 in last shearing crimping device middle part department in this connecting device, tape tail closing device is including setting up two telescopic drive mechanism 1101 on the blade holder, and two telescopic drive mechanism bottoms even have the pressure strip 1102 that is located the blade holder below. The telescopic driving mechanism can be a hydraulic cylinder. Through its drive pressure strip, at the shearing crimping in-process, the pressure strip compresses tightly the tape tail, can avoid the shearing in-process tape tail to stick up the tail to influence the crimping effect of cuting.

The working principle of the connecting device is as follows:

The working process of the connecting device is as follows:

the eccentric crankshaft transmission system 10 drives the eccentric crankshaft 3 to rotate for a certain angle precisely under the control of an absolute value encoder 94 arranged at the tail part of the eccentric crankshaft 3; the worm wheel I911 arranged at the tail part of the eccentric crankshaft rotates synchronously along with the eccentric crankshaft, the amplified deflection angle is transmitted to the worm II through the worm I, the deflection angle is synchronously transmitted to the eccentric shaft 4 through the worm II with the same speed ratio, the eccentric crankshaft 3 and the eccentric shaft 4 have the same deflection angle, and the swing frame 6 swings according to a fixed angle under the combined action of the eccentric crankshaft 3 and the eccentric shaft 4. Meanwhile, the eccentric crankshaft 3 drives the lower shearing and crimping device 2 to move upwards through the swinging frame 6, and the hydraulic driving device 7 drives the upper shearing and crimping device 1 to move downwards synchronously under the control of a linear displacement sensor on a hydraulic cylinder I in a hydraulic balance system 8; thereby realizing the shearing and compression joint of the intermediate billet of the hot rolled strip steel.

Finally, the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the scope of the claims of the present invention.

Claims

1. A hot-rolled strip steel endless rolling intermediate billet connecting device comprises an upper shearing and crimping device and a lower shearing and crimping device which are arranged oppositely in a high-low mode; the method is characterized in that: the device also comprises an eccentric crankshaft, an eccentric shaft, a fixed frame, a swinging frame, a hydraulic driving device, a hydraulic balance system and a synchronous mechanism;

2. The hot-rolled strip endless rolling intermediate billet connecting device according to claim 1, characterized in that: the hydraulic balance system mainly comprises an upper support, a lower connecting seat and a hydraulic cylinder I; the tail end of the hydraulic cylinder I is connected with the upper support through a sliding bearing, and the head end of the hydraulic cylinder I is hinged to the outer side face of the lower connecting seat through a hinge joint; the inner side surface of the lower connecting seat is connected with a support wing plate, and sliding plates are oppositely and parallelly arranged on the left side and the right side of the support wing plate.

3. The hot-rolled strip endless rolling intermediate billet connecting device according to claim 2, characterized in that: the upper shearing and crimping device comprises an upper tool apron, the lower part of the upper tool apron is provided with an upper shearing blade, a support wing plate in each group of hydraulic balance systems is connected with the side surface of the upper tool apron, and a sliding plate on the side surface of the support wing plate is in sliding fit with the swinging frame; the lower shearing and crimping device comprises a lower cutter holder, a lower shearing blade is arranged at the top of the lower cutter holder, and two sides of the lower cutter holder are connected with the swinging frame and driven by the swinging frame to swing and lift.

4. The hot-rolled strip endless rolling intermediate billet connecting device according to claim 3, characterized in that: the hydraulic driving device mainly comprises a bearing seat and a hydraulic cylinder II; a hydraulic cylinder body in the hydraulic cylinder II is matched with a bearing seat positioned above the hydraulic cylinder body to form a shaft hole for sleeving a shaft section between the eccentric section I and the eccentric section II, and the bearing seat is detachably connected with the hydraulic cylinder body; a pressure head is arranged on the surface of the extending end head of a hydraulic rod in the hydraulic cylinder II, and the lower end surface of the pressure head is of an inner spherical structure; the upper tool apron is provided with a pressing block, the top of the pressing block is of a spherical structure, the pressing block and the inner spherical structure of the lower end face of the pressing head are correspondingly matched, the pressing head is embedded in a retaining ring positioned on the upper tool apron, and the retaining ring is detachably connected with the upper tool apron.

5. The hot-rolled strip endless rolling intermediate billet connecting device according to claim 1, characterized in that: the upper worm gear mainly comprises a worm gear I sleeved at the tail end of the eccentric crankshaft, a worm I meshed with the worm gear I and a worm support I used for mounting the worm I; the worm support I is fixedly arranged on the fixed frame; the lower worm gear II mainly comprises a worm gear II sleeved at the tail end of the eccentric shaft, a worm II meshed with the worm gear II and a worm support II used for mounting the worm II; the worm support II is also fixedly arranged on the fixed frame; the upper end of the connecting shaft is connected with the worm I through an upper coupler, and the lower end of the connecting shaft is connected with the worm II through a lower coupler.

6. The hot-rolled strip endless rolling intermediate billet connecting device according to claim 5, characterized in that: the tail end of the eccentric crankshaft is provided with an absolute value encoder.

7. The hot-rolled strip endless rolling intermediate billet connecting device according to claim 1, characterized in that: the eccentric amount of the eccentric section III on the eccentric shaft is the same as that of the eccentric section I and the eccentric section II on the eccentric crankshaft.

8. The hot-rolled strip endless rolling intermediate billet connecting device according to claim 1, characterized in that: the eccentric crankshaft transmission system mainly comprises a motor and a reduction gearbox, the motor is connected with one end of the reduction gearbox through a coupler I, and the other end of the reduction gearbox is connected with the end of an eccentric crankshaft extending out of the fixed frame through a coupler II.

9. The hot-rolled strip endless rolling intermediate billet connecting device according to claim 3, characterized in that: go up to cut and be equipped with area tail closing device on the crimping device, area tail closing device is including setting up two telescopic drive mechanism on the blade holder, and two telescopic drive mechanism bottoms even have the pressure strip that is located the blade holder below.