CN112296093A

CN112296093A - Crank arm driving type rolling mill spiale flat head sleeve positioning device

Info

Publication number: CN112296093A
Application number: CN202011237449.1A
Authority: CN
Inventors: 徐永华
Original assignee: MCC Capital Engineering and Research Incorporation Ltd; CERI Technology Co Ltd
Current assignee: MCC Capital Engineering and Research Incorporation Ltd; CERI Technology Co Ltd
Priority date: 2020-11-09
Filing date: 2020-11-09
Publication date: 2021-02-02

Abstract

The invention relates to a crank arm driving type rolling mill spindle connecting flat head sleeve positioning device which comprises a clamping block structure and a clamping block driving structure, wherein the clamping block structure is used for tightly holding or loosening a flat head sleeve in a moving mode, the clamping block driving structure comprises an ejector rod and a rocker arm, the first end of the ejector rod can be fixedly connected with a rolling mill roll transmission side bearing seat, the ejector rod can move under the driving of the rolling mill roll transmission side bearing seat, the second end of the ejector rod can push and pull the first end of the rocker arm to enable the first end of the rocker arm to horizontally swing, and the second end of the rocker arm can drive the clamping block structure to move so as to tightly hold or loosen the flat head sleeve. The clamping block driving structure takes the push-pull of the rolling mill roller transmission side bearing seat as power to drive the clamping block structure to move so as to clasp or loosen the flat head sleeve, clasping and opening of the flat head sleeve are realized by utilizing the pull-out and push-in processes necessary for roll change, and a special device is not needed to provide driving power in the whole process.

Description

Crank arm driving type rolling mill spiale flat head sleeve positioning device

Technical Field

The invention relates to the technical field of smelting and rolling, in particular to a crank arm driving type positioning device for a connecting shaft flat head sleeve of a rolling mill.

Background

In the prior art, as shown in fig. 11 and 12, the rolling mill rolls are rotated by driving a universal spindle 94 by a main motor 93 and driving a rolling mill roll 95 by a flat head sleeve 91. When the rolling mill changes the roll, the old roll is pulled out through the roll changing trolley 92, and at the moment, the flat head sleeve positioning device 96 is needed to keep the posture and the position of the flat head sleeve unchanged so that the new roll can be smoothly pushed in.

As shown in fig. 13 and 14, there is a first existing flat head sleeve positioning device in the prior art, a first hydraulic cylinder 971 is provided in the device, the first hydraulic cylinder 971 horizontally extends or retracts a first piston rod to drive a clamping block 98 to hug or loosen a flat head sleeve (when rolling, the first piston rod of the first hydraulic cylinder 971 retracts to give way to a flat head sleeve moving position, and when changing rolls, the first piston rod of the first hydraulic cylinder extends to hug the flat head sleeve), and the device has the following problems: a dedicated power (hydraulic cylinder) is required for driving and a plurality of hydraulic cylinders may be required.

As shown in fig. 15, 16, and 17, there is a second existing flat head sleeve positioning device in the prior art, a second hydraulic cylinder 972 is arranged in the device, the second hydraulic cylinder 972 drives the clamping block 98 to clasp or loosen the flat head sleeve by vertically extending or retracting the second piston rod (when rolling steel, the piston rod of the second hydraulic cylinder extends out, and lets out the movable position of the flat head sleeve, when changing the roll, the second piston rod of the second hydraulic cylinder retracts, clasps the flat head sleeve), and the device has the following problems: a special power (hydraulic cylinder) is required for driving; occupying the space above the rolling mill and possibly interfering spatially with other parts of the rolling mill.

Therefore, the inventor provides a crank arm driving type rolling mill connecting shaft flat head sleeve positioning device by virtue of experience and practice of related industries for many years, so as to overcome the defects in the prior art.

Disclosure of Invention

The invention aims to provide a crank arm driving type rolling mill connecting shaft flat head sleeve positioning device, which solves the problems that the prior art needs special power for driving and the like.

The invention aims to realize the positioning device of the crank arm driven type rolling mill spindle connecting flat head sleeve, which comprises a clamping block structure and a clamping block driving structure, wherein the clamping block structure is used for tightly holding or loosening the flat head sleeve in a moving mode, the clamping block driving structure comprises an ejector rod and a rocker arm, the first end of the ejector rod can be fixedly connected with a rolling mill roll transmission side bearing seat, the ejector rod can move under the driving of the rolling mill roll transmission side bearing seat, the second end of the ejector rod can push and pull the first end of the rocker arm to horizontally swing, and the second end of the rocker arm can drive the clamping block structure to move so as to tightly hold or loosen the flat head sleeve.

In a preferred embodiment of the present invention, the clamping block structure includes a first clamping and positioning frame and a second clamping and positioning frame which are symmetrically arranged, the first clamping and positioning frame is provided with a first clamping block, the second clamping and positioning frame is provided with a second clamping block, and the first clamping block and the second clamping block can be fastened to clasp the flat head sleeve; one side of the first clamping and positioning frame and one side of the second clamping and positioning frame, which are close to the bearing block on the transmission side of the rolling mill roll, are respectively provided with a clamping block driving structure, and the first clamping and positioning frame and the second clamping and positioning frame can both move in opposite directions or move back to back under the driving of the clamping block driving structure so as to hold or loosen the flat head sleeve.

In a preferred embodiment of the present invention, a horizontal guide rod is disposed below the clamping block structure, and a central line of the guide rod and a central line of the flat head sleeve are spatially and vertically disposed; the bottoms of the first clamping and positioning frame and the second clamping and positioning frame are slidably sleeved on the guide rod.

In a preferred embodiment of the present invention, each of the rocker arms includes a first arm and a second arm connected at a first included angle, a free end of the first arm forms a first end of the rocker arm, and a free end of the second arm forms a second end of the rocker arm; a first bulge is arranged on one side, close to the clamping block structure, of the first end of the rocker arm, a second bulge is arranged on one side, far away from the clamping block structure, of the first end of the rocker arm, and the first bulge and the second bulge are horizontally spaced and extend along the length direction of the first arm; the second end of the ejector rod is provided with a first lock hook which can prop against the first protrusion or hook the second protrusion.

In a preferred embodiment of the present invention, the first clamping and positioning frame and the second clamping and positioning frame are both provided with a blocking rod structure, and the second end of the rocker arm drives the first clamping and positioning frame or the second clamping and positioning frame to move through the blocking rod structure.

In a preferred embodiment of the present invention, each of the stop lever structures includes a first stop lever and a second stop lever that are vertically disposed, the first stop lever and the second stop lever are horizontally spaced apart from each other, and the second end of the rocker arm is inserted between the first stop lever and the second stop lever.

In a preferred embodiment of the present invention, a bracket base is disposed at the bottom of each of the first clamping and positioning frame and the second clamping and positioning frame, and each of the swing arms is hinged to the bracket base through a vertical first hinge shaft.

In a preferred embodiment of the present invention, a locking structure is disposed on one side of each of the rocker arms.

In a preferred embodiment of the present invention, the locking structure includes a second locking hook capable of rotating around a horizontal second hinge axis and a crank arm, the second locking hook can be swung downward to lock one side of the first arm close to the clamping block structure, and the crank arm can push against and press one side of the first arm far from the clamping block structure.

In a preferred embodiment of the present invention, a bracket base is disposed at the bottom of each of the first clamping and positioning frame and the second clamping and positioning frame, a locking support is connected to the bracket base, and the second hinge shaft is hinged to the locking support.

From the above, the crank arm driven type rolling mill connecting shaft flat head sleeve positioning device provided by the invention has the following beneficial effects:

in the crank arm driven type positioning device for the connecting shaft flat head sleeve of the rolling mill, the clamping block driving structure drives the clamping block structure to move by taking the push-pull of the bearing block on the transmission side of the rolling mill roll as power so as to clasp or loosen the flat head sleeve, the clasping and the opening of the flat head sleeve are realized by utilizing the pull-out and push-in processes necessary for roll change, a special device is not needed to provide driving power in the whole process, and the supporting facilities such as energy wiring, piping, control and the like necessary for power are not needed, so that the initial investment is saved, and the maintenance workload is also reduced; the invention has simple structure and convenient operation, and is beneficial to popularization and use.

Drawings

The drawings are only for purposes of illustrating and explaining the present invention and are not to be construed as limiting the scope of the present invention. Wherein:

FIG. 1: the invention discloses a structure schematic diagram of a crank arm driven type rolling mill spindle flat head sleeve positioning device when a flat head sleeve is loosened.

FIG. 2: the invention relates to a front view of a bent arm driving type rolling mill spindle flat head sleeve positioning device when a flat head sleeve is loosened.

FIG. 3: is a view along a direction in fig. 2.

FIG. 4: is a structural schematic diagram of the clamping block driving structure of the invention.

FIG. 5: is a schematic structural diagram of the ejector rod of the invention.

FIG. 6: is a structural schematic diagram of the rocker arm of the invention.

FIG. 7: is a structural schematic diagram of the locking structure of the invention.

FIG. 8: the invention is a structural schematic diagram when the crank arm driving type rolling mill spiale flat head sleeve positioning device clasps the flat head sleeve.

FIG. 9: the invention is a front view of the bent arm driving type rolling mill connecting shaft flat head sleeve positioning device when the flat head sleeve is tightly held.

FIG. 10: is a view along direction B in fig. 9.

FIG. 11: is a state diagram when the rolling mill rolls are not pulled out.

FIG. 12: is a state diagram after the rolling mill roller is pulled out.

FIG. 13: is a schematic structural view of a first conventional rotator cuff positioning device in the prior art.

FIG. 14: is a front view of a first prior art rotator cuff positioning device of the prior art.

FIG. 15: is a schematic structural view of a second conventional rotator cuff positioning device in the prior art.

FIG. 16: is a front view of the second prior flat head sleeve positioning device in the prior art when the positioning sleeve is clasped.

FIG. 17: is a front view of a second prior art rotator cuff positioning device of the prior art when the positioning cuff is released.

In the figure:

100. crank arm driven type rolling mill spiale flat head sleeve positioning device;

1. a clamping block structure;

11. a first clamping and positioning frame; 12. a second clamping and positioning frame; 13. a first clamping block; 14. a second clamping block; 15. a guide bar; 16. a gear lever structure; 161. a first shift lever; 162. a second shift lever; 17. a bracket base;

2. a clamping block drive structure;

21. a top rod; 211. a first latch hook;

22. a rocker arm; 221. a first arm; 222. a second arm; 223. a first protrusion; 224. a second protrusion; 225. a first hinge shaft;

3. a locking structure;

31. a second hinge shaft; 32. a second latch hook; 33. a crank arm; 34. locking the support;

91. a flat head sleeve; 92. a roll changing trolley; 93. a main motor; 94. a universal joint shaft; 95. rolling a roller of a rolling mill; 96. a flat head sleeve positioning device; 971. a first hydraulic cylinder; 972. a second hydraulic cylinder; 98. and (4) clamping the block.

Detailed Description

In order to more clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will now be described with reference to the accompanying drawings.

The specific embodiments of the present invention described herein are for the purpose of illustration only and are not to be construed as limiting the invention in any way. Any possible variations based on the present invention may be conceived by the skilled person in the light of the teachings of the present invention, and these should be considered to fall within the scope of the present invention. It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "mounted," "connected," and "connected" are to be construed broadly and may include, for example, mechanical or electrical connections, communications between two elements, direct connections, indirect connections through intermediaries, and the like. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Fig. 1 to 10 show that the invention provides a crank-driven mill spindle flat head sleeve positioning device 100, which includes a clamping block structure 1 and a clamping block driving structure 2, wherein the clamping block structure 1 is used for moving to clasp or loosen a flat head sleeve 91, the clamping block driving structure 2 includes a top rod 21 and a rocker 22, a first end of the top rod 21 can be fixedly connected with a mill roll transmission side bearing block (in the prior art), the top rod 21 can be driven by the mill roll transmission side bearing block to move (when changing rolls, the mill roll transmission side bearing block drives a roll and the top rod to move axially), a second end of the top rod 21 can push and pull the first end of the rocker 22 to swing horizontally, and the second end of the rocker 22 can drive the clamping block structure 1 to move to clasp or loosen the flat head sleeve 91.

When a roller of a rolling mill is changed, an old roller is pulled out through a bearing seat on a transmission side of the roller of the rolling mill, at the moment, the clamping block driving structure 2 drives the clamping block structure 1 to hold the flat head sleeve 91 tightly, so that the posture and the position of the flat head sleeve 91 are unchanged, and a new roller can be smoothly pushed in; when a new roller is pushed in, the clamping block driving structure 2 drives the clamping block structure 1 to loosen the flat head sleeve 91, so that the requirements of a normal steel rolling state are met.

In the crank arm driven type positioning device for the connecting shaft flat head sleeve of the rolling mill, the clamping block driving structure drives the clamping block structure to move by taking the push-pull of the bearing seat on the transmission side of the rolling mill roll as power during roll change so as to clasp or loosen the flat head sleeve, the clasping and the opening of the flat head sleeve are realized by utilizing the pull-out and push-in processes necessary for roll change, a special device is not needed in the whole process to provide driving power, and matched facilities such as energy wiring, piping, control and the like necessary for power are not needed, so that the initial investment is saved, and the maintenance workload is also reduced; the invention has simple structure and convenient operation, and is beneficial to popularization and use.

Further, as shown in fig. 1, fig. 2, fig. 8, and fig. 9, the clamping block structure 1 includes a first clamping and positioning frame 11 and a second clamping and positioning frame 12 which are symmetrically arranged, a first clamping block 13 is arranged on the first clamping and positioning frame 11, a second clamping block 14 is arranged on the second clamping and positioning frame 12, and the first clamping block 13 and the second clamping block 14 can be fastened to clasp the flat head cover 91; one side of first centre gripping locating rack 11 and second centre gripping locating rack 12 near rolling mill roll transmission side bearing frame all sets up a grip block drive structure 2, and first centre gripping locating rack 11 and second centre gripping locating rack 12 homoenergetic move or move back on the back in order to hold tightly or loosen flat headgear 91 under the drive of grip block drive structure 2 in opposite directions. The movement of the first holding fixture 11 and the second holding fixture 12 is synchronized.

As shown in fig. 1, 2, 3, 4, 8, 9, and 10, in the present embodiment, a horizontal guide rod 15 is provided below the clamp block structure 1, and the center line of the guide rod 15 is provided to be perpendicular to the center line of the flathead cover 91 in space (the center line of the guide rod 15 is provided to be parallel to the horizontal radial direction of the flathead cover 91); the bottoms of the first clamping and positioning frame 11 and the second clamping and positioning frame 12 are slidably sleeved on the guide rod 15.

Further, as shown in fig. 4, 5 and 6, each rocker arm 22 includes a first arm 221 and a second arm 222 which are connected and arranged at a first included angle, a free end of the first arm 221 forms a first end of the rocker arm 22, and a free end of the second arm 222 forms a second end of the rocker arm 22; a first bulge 223 is arranged at one side, close to the clamping block structure 1, of the first end of the rocker arm 22, a second bulge 224 is arranged at one side, far away from the clamping block structure 1, of the first end of the rocker arm 22, and the first bulge 223 and the second bulge 224 are horizontally spaced and extend along the length direction of the first arm 221; the second end of the top bar 21 is provided with a first locking hook 211, and the first locking hook 211 can abut against the first protrusion 223 or hook the second protrusion 224.

When the old roller is taken out and removed, the mandril 21 is far away from the clamping block structure 1 along with the rolling mill roller transmission side bearing seat, the first lock hook 211 hooks the second bulge 224 to enable the first arm 221 to swing along with the second bulge, and at the moment, the second arm 222 drives the first clamping positioning frame 11 and the second clamping positioning frame 12 to move oppositely to clasp the flat head sleeve 91; when a new roller is pushed in, the mandril 21 approaches the clamping block structure 1 along with the bearing block on the transmission side of the roller of the rolling mill, the first lock hook 211 abuts against the first bulge 223, so that the first arm 221 swings along with the first bulge, and at the moment, the second arm 222 drives the first clamping positioning frame 11 and the second clamping positioning frame 12 to move back and forth to loosen the flat head sleeve 91.

Further, as shown in fig. 3 and 4, the first clamping and positioning frame 11 and the second clamping and positioning frame 12 are both provided with a blocking rod structure 16, and the second end of the swing arm 22 drives the first clamping and positioning frame 11 or the second clamping and positioning frame 12 to move through the blocking rod structure 16.

Further, as shown in fig. 3 and 4, each of the lever structures 16 includes a first lever 161 and a second lever 162 that are vertically disposed, the first lever 161 and the second lever 162 are horizontally disposed at an interval, and the second end of the rocker arm 22 is inserted between the first lever 161 and the second lever 162. The push rod 21 moves to drive the first arm 221 of the rocker 22 to swing, and the second arm 222 swings while the first arm 221 swings, so as to push and pull the first clamping and positioning frame 11 or the second clamping and positioning frame 12 to move through the blocking rod structure 16.

Further, as shown in fig. 1, 2, 3 and 4, the bracket bases 17 are disposed at the bottoms of the first clamping and positioning frame 11 and the second clamping and positioning frame 12, and the swing arms 22 are hinged to the bracket bases 17 through vertical first hinge shafts 225. The guide bar 15 is also disposed on the holder base 17.

Further, as shown in fig. 1, 2, 3, 4, 8, 9, and 10, the locking structure 3 is provided on one side of each rocker arm 22. Locking structure 3 can lock the rocking arm when grip block structure 1 locks oblate headgear 91, guarantees the stability of oblate headgear 91 locking.

Further, as shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 7, fig. 8, fig. 9, and fig. 10, the locking structure 3 includes a second locking hook 32 and a crank arm 33, the second locking hook 32 can be swung down to lock the side of the first arm 221 close to the clamping block structure 1, and the crank arm 33 can press against the side of the first arm 221 away from the clamping block structure 1. The second locking hook 32 and the crank arm 33 complete the positioning and locking of the first arm 221 by one hook and one jack, and after the first arm 221 swings outwards under the action of the push rod 21, the second locking hook 32 and the crank arm 33 swing downwards to lock the first arm 221.

Referring to fig. 1, 2, 3, 8, 9 and 10, in the present embodiment, a locking support 34 is connected to the bracket base 17, and the second hinge shaft 31 is hinged to the locking support 34.

The use process of the crank arm driven type rolling mill connecting shaft flat head sleeve positioning device 100 is as follows:

in the process of pushing the roller, the mandril 21 is close to the clamping block structure 1 along with the bearing block on the transmission side of the roller of the rolling mill, the first lock hook 211 is propped against the first bulge 223, so that the first arm 221 swings inwards along with the first bulge, the second arms 222 swing outwards, the two second arms 222 respectively drive the first clamping positioning frame 11 and the second clamping positioning frame 12 to move back to back along the guide rod 15, and the flat head sleeve 91 is loosened; when the first arm 221 swings inward, the second latch hook 32 and the crank arm 33 swing upward, and the first arm 221 is not locked. The clamping block structure 1 completes the opening action.

In the roll pulling-out motion, the mandril 21 is far away from the clamping block structure 1 along with the rolling mill roll transmission side bearing seat, the first lock hook 211 hooks the second bulge 224 to enable the first arm 221 to swing outwards along with the first bulge, the second arm 222 swings inwards, and the two second arms 222 respectively drive the first clamping positioning frame 11 and the second clamping positioning frame 12 to move oppositely to clasp the flat head sleeve 91; when the first arm 221 swings outwards by a certain angle, the second locking hook 32 and the crank arm 33 swing downwards to lock the first arm 221. The clamping block structure 1 completes the holding action.

The above description is only an exemplary embodiment of the present invention, and is not intended to limit the scope of the present invention. Any equivalent changes and modifications that can be made by one skilled in the art without departing from the spirit and principles of the invention should fall within the protection scope of the invention.

Claims

1. The utility model provides a bent arm drive formula rolling mill spiale bluff sleeve positioner, its characterized in that includes grip block structure and grip block drive structure, the grip block structure is used for removing and embraces tightly or loosen the bluff sleeve, grip block drive structure includes ejector pin and rocking arm, the first end of ejector pin can with rolling mill roll transmission side bearing fixed connection and the ejector pin can move under rolling mill roll transmission side bearing's drive, the second end of ejector pin can push and pull the first end of rocking arm is in order to make its horizontal hunting, the second end of rocking arm can drive the grip block structure removes in order to embrace tightly or loosen the bluff sleeve.

2. The crank arm driven mill spindle nose sleeve positioning device of claim 1, wherein the clamping block structure comprises a first clamping positioning frame and a second clamping positioning frame which are symmetrically arranged, a first clamping block is arranged on the first clamping positioning frame, a second clamping block is arranged on the second clamping positioning frame, and the first clamping block and the second clamping block can be buckled and clasped to a nose sleeve; one side of the first clamping and positioning frame and one side of the second clamping and positioning frame, which are close to the bearing block on the transmission side of the rolling mill roll, are respectively provided with a clamping block driving structure, and the first clamping and positioning frame and the second clamping and positioning frame can both move in opposite directions or move back to back under the driving of the clamping block driving structure so as to hold or loosen the flat head sleeve.

3. The crank arm driven mill spindle nose sleeve positioning device according to claim 2, wherein a horizontal guide rod is arranged below the clamping block structure, and the center line of the guide rod is vertically arranged with the center line of the nose sleeve in a space; the bottoms of the first clamping and positioning frame and the second clamping and positioning frame are slidably sleeved on the guide rod.

4. The crank arm driven mill spiale nose cup positioning device of claim 2, wherein each rocker arm comprises a first arm and a second arm connected at a first included angle, the free end of the first arm forming a first end of the rocker arm and the free end of the second arm forming a second end of the rocker arm; a first bulge is arranged on one side, close to the clamping block structure, of the first end of the rocker arm, a second bulge is arranged on one side, far away from the clamping block structure, of the first end of the rocker arm, and the first bulge and the second bulge are horizontally spaced and extend along the length direction of the first arm; the second end of the ejector rod is provided with a first lock hook which can prop against the first protrusion or hook the second protrusion.

5. The crank arm driven mill spindle nose sleeve positioning device of claim 4, wherein the first clamping positioning frame and the second clamping positioning frame are both provided with a blocking rod structure, and the second end of the rocker arm drives the first clamping positioning frame or the second clamping positioning frame to move through the blocking rod structure.

6. The crank arm driven mill spiale nose sleeve positioning device of claim 5 wherein each said stop lever structure comprises a first stop lever and a second stop lever in a vertical arrangement, said first stop lever and said second stop lever being horizontally spaced apart, said second end of said rocker arm being interposed between said first stop lever and said second stop lever.

7. The crank arm driven type rolling mill spindle nose sleeve positioning device of claim 4, wherein a bracket base is arranged at the bottom of each of the first clamping positioning frame and the second clamping positioning frame, and each rocker arm is hinged to the bracket base through a vertical first hinge shaft.

8. The crank arm driven mill spiale nose sleeve positioning device of claim 4 wherein one side of each rocker arm is provided with a locking structure.

9. The spindle nose sleeve positioning device of crank arm driven rolling mill according to claim 8, wherein said locking structure comprises a second locking hook and a crank arm, said second locking hook can be swung down to lock the side of said first arm close to said holding block structure, and said crank arm can be pressed against the side of said first arm far from said holding block structure.

10. The crank arm driven type rolling mill spindle nose sleeve positioning device as claimed in claim 9, wherein a bracket base is provided at the bottom of each of the first clamping and positioning frame and the second clamping and positioning frame, a locking support is connected to the bracket base, and the second hinge shaft is hinged to the locking support.