CN212384590U

CN212384590U - Automatic regulating stopper rod

Info

Publication number: CN212384590U
Application number: CN202020555634.4U
Authority: CN
Inventors: 修昌珉
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-15
Filing date: 2020-04-15
Publication date: 2021-01-22
Anticipated expiration: 2030-04-15

Abstract

The automatic adjustment stopper rod comprises a fastening adjustment device and a connecting piece, and the stopper rod body is connected with the fastening adjustment device through the connecting piece; the fastening adjusting device comprises a first mounting seat and a second mounting seat, a first hemisphere is installed in the first mounting seat in a matching mode, a second hemisphere is installed in the second mounting seat in a matching mode, the first hemisphere and the second hemisphere form a sphere, a first cylinder is installed inside the first hemisphere, a second cylinder is installed inside the second hemisphere, and the first cylinder is fixedly connected with the second cylinder. The utility model has the advantages of: an automatically regulated stopper stick, whole action process and range are all very little, can stop the possibility of stopper stick skew, ensure to fill in to protect and the mouth of a river is according to keeping accurate complex positional relationship unchangeable, can improve the life of stopper stick body, and then guarantee the normal clear of whole steelmaking operation. Moreover, the whole operation is more simple, convenient and quick, and the operation is time-saving and labor-saving.

Description

Automatic regulating stopper rod

Technical Field

The utility model belongs to the technical field of the stopper technique and specifically relates to an automatic adjust stopper stick.

Background

The stopper rod is a refractory material rod which is arranged in a tundish and controls the opening and closing of a water gap by lifting displacement, is also called a ceramic stopper rod and consists of a rod core, sleeve bricks and stopper bricks. As shown in fig. 8, the conventional rod core is usually made of plain carbon steel round steel with a diameter of 30-60mm, the upper end of the conventional rod core is connected with a bracket of the lifting mechanism by a bolt and two positioning nuts, the upper side and the lower side of the conventional rod core clamp the bracket of the lifting mechanism, and the lower end of the conventional rod core is connected with the stopper brick by a thread or a pin. When the stopper rod is installed, the stopper rod is inserted into a water gap at the bottom of the tundish from top to bottom, the lower end of the stopper rod is accurately positioned in the water gap, then two positioning nuts positioned on the upper side and the lower side of a support of the lifting mechanism are respectively screwed, and the support is clamped by the two positioning nuts to realize the connection and fixation between the stopper rod and the lifting mechanism. However, since the bolt and the two positioning nuts are both located at the upper end of the stopper rod, and the stopper rod is long as a whole, in the process of sequentially screwing and fastening the positioning nuts located at the upper side and the lower side of the bracket, the whole stopper rod is usually deviated relative to the bracket of the lifting mechanism, sometimes the stopper rod is horizontally moved relative to the bracket, sometimes the stopper rod is deviated relative to the bracket by using one of the positioning nuts as a fulcrum, sometimes the stopper rod is deviated simultaneously, and as a result, the lower end of the stopper rod cannot be accurately matched with the water gap, and the water gap cannot be effectively sealed, so that the whole steel-making operation is influenced. Because the stopper rod is long and most of the stopper rod is positioned in the tundish, only a small part of the upper end of the stopper rod and the bolts at the upper end of the stopper rod are left to be exposed out of the tundish, when the positioning nuts at the upper side and the lower side are screwed, even if the lower end of the stopper rod is obviously deviated relative to the water gap, the bolts at the upper end of the stopper rod and the two positioning nuts only generate small displacement and are difficult to be perceived by people. Once the shift of the stopper rod and the nozzle occurs, when the stopper rod is matched with the nozzle, the force between the nozzle and the stopper rod is necessarily uneven, namely the stopper rod has a good sealing effect on the pressure of one side of the nozzle and a poor sealing effect on the pressure of the opposite side. At this moment, for avoiding mouth of a river department to leak, the operator can only control elevating system and increase the stopper rod and insert the degree of depth of mouth of a river, makes the stopper rod take place the mode of partial deformation or buckling and just can be with ground mouth of a river shutoff, but this must make the stopper rod cause great wearing and tearing to one side of mouth of a river, just can make the mouth of a river of original circular shape become the opening of oval or anomalous bar after operating several times repeatedly. At this moment, the stopper stick is more difficult to the shutoff mouth of a river, and operating personnel then need further increase the stopper stick and insert the degree of depth of mouth of a river to cause bigger wearing and tearing to one side of mouth of a river, so vicious circle makes the mouth of a river thoroughly become the bar mouth very fast, and at this moment, the stopper stick has been unable shutoff mouth of a river. The above process is the main reason why the service life of the stopper and the nozzle is far shorter than the design life at present. When the situation happens, a workshop only needs to suspend the tundish for use and replace the stopper rod and the nozzle, so that the production is influenced, and the replacement cost and the labor cost of the stopper rod and the nozzle are greatly increased. In summary, how to ensure that the stopper rod does not deviate as much as possible in the process of installing and fixing the stopper rod on the bracket of the lifting mechanism is a problem to be solved urgently at present.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, an object of the utility model is to provide an automatic adjust stopper rod installs on elevating system's support through fastening adjusting device, can make it aim at the mouth of a river all the time at the fixed in-process that adjusts of stopper rod installation to do not take place the skew in fastening process, guarantee the normal shutoff control to the mouth of a river, make the annular contact surface atress at stopper rod and mouth of a river even, avoid excessive wearing and tearing to mouth of a river one side, can prolong the life at stopper rod and mouth of a river by a wide margin, save a large amount of manpower and materials.

The utility model provides a technical scheme that its technical problem adopted is:

an automatic adjustment stopper rod comprises a stopper rod body, a fastening adjusting device and a connecting piece, wherein the stopper rod body is connected with the fastening adjusting device through the connecting piece; the fastening and adjusting device comprises a first mounting seat and a second mounting seat, a first hemisphere is arranged in the first mounting seat in a matching way, a second hemisphere is arranged in the second mounting seat in a matching way, the first hemisphere and the second hemisphere form a sphere, a first cylinder is arranged in the first hemisphere, a second cylinder is arranged in the second hemisphere, the first cylinder is fixedly connected with the second cylinder, the diameter of the second cylinder is smaller than that of the first cylinder, a boss is formed at the connecting position of the first cylinder and the second cylinder, the bottom of the second hemisphere is matched with the boss, a first through hole is arranged in the second hemisphere, a mandril is arranged in the first through hole in a matching way, the bottom end of the mandril is contacted with the first hemisphere, a first pressing plate is arranged at the top end of the mandril, the first pressing plate is sleeved on the second hemisphere, an axial pressing mechanism is arranged at the upper part of the first pressing plate and can push the ejector rod and the first hemisphere to move downwards relative to the first cylinder; the bottom of the first column body is fixedly connected with the stopper rod body through a connecting piece.

The axial pressing mechanism comprises a wedge-shaped pin, a strip-shaped hole matched with the wedge-shaped pin is horizontally formed in the upper end of the second column, the wedge-shaped pin is located at the upper portion of the first pressing plate, and the wedge-shaped pin can drive the first pressing plate to move downwards when being gradually inserted into the strip-shaped hole from the small end to the large end.

The axial pressing mechanism further comprises a disc spring and a second pressing plate, wherein the disc spring is sleeved on the outer periphery of the second cylinder and located on the upper portion of the first pressing plate, the second pressing plate is sleeved on the outer periphery of the second cylinder and located on the upper portion of the disc spring, the wedge-shaped pin is located on the upper portion of the second pressing plate, and the wedge-shaped pin can press the second pressing plate, the disc spring and the first pressing plate to move downwards. The axial pressing mechanism comprises a screwing nut, the screwing nut is located on the upper portion of the first pressing plate, an external thread is arranged on the periphery of the upper end of the second column body, the screwing nut is matched with the external thread, and the screwing nut is rotated to drive the first pressing plate to move downwards. The connecting piece includes first connecting plate, second connecting plate and spliced pole, and wherein first connecting plate and second connecting plate level set up, and first connecting plate fixed connection is in the bottom of first cylinder, spliced pole fixed mounting between first connecting plate and second connecting plate, the spliced pole is located one side position of second connecting plate, has still seted up the third through hole on the second connecting plate, and the screw rod is installed on the top of stopper stick body, and the screw rod is located the third through hole, and fastening nut is installed in the cooperation still on the screw rod, and fastening nut can be with stopper stick body fixed mounting on the second connecting plate.

The utility model has the advantages of: an automatic adjust stopper stick, its stopper stick body passes through fastening adjusting device and installs on the support. Compare in the tradition and carry out the mode of fastening connection through the nut, the utility model discloses in stopper rod installation, can ensure that stopper rod lower extreme and the accurate complex state in mouth of a river are unchangeable, guarantee that stopper rod and mouth of a river require the cooperation to be sealed according to setting for, and can not only lead to the fact the mouth of a river to damage fast to the excessive wearing and tearing in mouth of a river one side. The utility model discloses the mode of fixing the stopper rod at the support is, moves down through first clamp plate and ejector pin and drives first hemisphere and second hemisphere separation to make first hemisphere and second hemisphere rise tightly in the mount pad, in order to realize the relative fastening operation of stopper rod and support. The scheme is at the fastening stopper rod in-process, through increaseing the distance between first hemisphere and the second hemisphere with the stopper rod upper end instantaneous rise tightly fixed, whole action process and range are all very little, can stop the possibility that the stopper rod squints, ensure to fill in and protect and do not change according to keeping accurate complex position relation with the mouth of a river, can improve the life of the stopper rod body, and then guarantee the normal clear of whole steelmaking operation. Moreover, the whole operation is more simple, convenient and quick, and the operation is time-saving and labor-saving.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is an enlarged partial view of I of FIG. 1;

fig. 3 is a schematic view of the state of the present invention when locked;

FIG. 4 is an enlarged view of the cross-sectional view taken along line A-A of FIG. 2;

FIG. 5 is a schematic structural view of a second embodiment of an axial compression mechanism;

FIG. 6 is a schematic structural view of a first embodiment of an axial compression mechanism;

FIG. 7 is an enlarged view of the cross-sectional view taken along line B-B in FIG. 5;

figure 8 is a schematic view of the installation of a stopper rod according to the prior art.

In the figure, a stopper rod body 2, a bracket 3, a first mounting seat 4, a second mounting seat 5, a first hemisphere 6, a second hemisphere 7, a first column 8, a boss 10, a first through hole 11, a first pressing plate 13, a second through hole 14, a disc spring 15, a second pressing plate 16, a connecting column 17, a third through hole 18, a screw 19, a fastening nut 20, a screw 21, an external thread 22, a wedge pin 23, a strip hole 24, a first connecting plate 25 and a second connecting plate 25 are arranged on the stopper rod body 2.

Detailed Description

An automatic adjust stopper stick, as shown in fig. 1, including stopper stick body 1 and support 2, stopper stick body 1 installs on support 2 through fastening adjusting device. One end of the bracket 2 is connected with a lifting mechanism which can be an existing oil cylinder or an electric push rod. The lifting mechanism can drive the support 2 and the stopper rod body 1 to lift in the moving process, and then the stopper rod body 1 can be used for plugging and opening a water gap.

As shown in fig. 2, the fastening adjustment device includes a first mounting seat 3 and a second mounting seat 4 fixedly mounted on the upper side of the bracket 2, wherein the second mounting seat 4 is located on the upper side of the first mounting seat 3, and the first mounting seat 3 and the second mounting seat 4 can be fixedly mounted on the bracket 2 through fastening bolts. A first hemisphere 5 is installed in the first installation seat 3 in a matching manner, a second hemisphere 6 is installed in the second installation seat 4 in a matching manner, and the first hemisphere 5 and the second hemisphere 6 can be hemisphere bearings. The sphere formed by the first hemisphere 5 and the second hemisphere 6 can rotate in the spherical cavity formed by the first mounting seat 3 and the second mounting seat 4. The upper part of the second hemisphere 6 may be a plane.

A first cylinder 7 is arranged in the first hemisphere 5, and a second cylinder 8 is arranged in the second hemisphere 6. The first column 7 and the second column 8 are coaxially and fixedly connected, and can be made into a whole. The diameter of the second cylinder 8 is smaller than that of the first cylinder 7, and a boss 9 is formed at the connecting position of the first cylinder 7 and the second cylinder 8. The bottom of the second hemisphere 6 is matched with the boss 9, and the second hemisphere 6 is located on the boss 9. A first through hole 10 is formed in the second hemisphere 6, the first through hole 10 is vertically arranged, an ejector rod 11 is installed in the first through hole 10 in a matched mode, and the bottom end of the ejector rod 11 is in contact with the first hemisphere 5. The top end of the ejector rod 11 is provided with a first pressing plate 12, the first pressing plate 12 is sleeved on the second column body 8, and the upper part of the first pressing plate 12 is provided with an axial pressing mechanism. The axial pressing mechanism can push the ejector rod 11 and the first hemispheroid 5 to move downwards along the first cylinder 7, so that the first hemispheroid 5 is relatively separated from the second hemispheroid 6, and a sphere formed by the first hemispheroid 5 and the second hemispheroid 6 is expanded and fixed in a spherical cavity formed by the two mounting seats. When the first hemisphere 5 and the second hemisphere 6 are fixed with the two mounting seats, the first cylinder 7 and the second cylinder 8 are fixed relative to the support 2, so that the stopper rod is fixed on the support 2.

The second through-hole 13 is seted up in the position department of support 2 and stopper rod body 1 installation, and first cylinder 7 wears out support 2 via second through-hole 13, connecting piece and stopper rod body 1 fixed connection are passed through to the bottom of first cylinder 7, and wherein the connecting piece can be current threaded connection spare or pin joint spare to guarantee the steadiness of being connected between stopper rod body 1 and the first cylinder 7 and the dismantlement performance of being connected.

As shown in fig. 2, the axial compression mechanism includes a wedge pin (22). The upper end of the second column (8) is horizontally provided with a strip-shaped hole (23) matched with the wedge-shaped pin (22). The wedge-shaped pin (22) is positioned at the upper part of the first pressing plate (12), and the wedge-shaped pin (22) can drive the first pressing plate (12) to move downwards when being gradually inserted into the strip-shaped hole (23) from the small end to the large end. Namely, pushing the wedge pin (22) can drive the first pressing plate (12) to move downwards, so that the first hemisphere (5) is pushed to move downwards relative to the first cylinder (7) through the ejector rod (11), as shown in fig. 3, the first hemisphere (5) is separated from the second hemisphere (6).

Further, the axial pressing mechanism may further include a disc spring 14 and a second pressing plate 15, wherein the disc spring 14 is sleeved on the outer periphery of the second column 8 and located on the upper portion of the first pressing plate 12, and the second pressing plate 15 is sleeved on the outer periphery of the second column 8 and located on the upper portion of the disc spring 14. The upper end of the second column body 8 is provided with a strip-shaped hole 23 matched with a wedge-shaped pin 22, the wedge-shaped pin 22 is located at the upper part of the first pressing plate 12, the wedge-shaped pin 22 can drive the first pressing plate 12 to move downwards when entering the strip-shaped hole 23 gradually from the small end to the large end, the ejector rod 11 further pushes the first hemisphere 5 to move downwards in the first mounting seat 3, the first hemisphere 5 and the second hemisphere 6 are enabled to be tensioned in the mounting seat, fastening and positioning operations on the stopper rod body 1 are completed, and the stopper rod body 1 cannot be deflected when entering the strip-shaped hole 23 gradually through the wedge-shaped pin 22. As shown in fig. 2, the small end of the wedge-shaped pin 22 is located in the strip-shaped hole 23, no pressure is applied to the second pressing plate 15, the disc spring 14 and the first pressing plate 12 at the bottom of the wedge-shaped pin, the ejector rod 11 does not vertically move, the first hemisphere 5 and the second hemisphere 6 are not acted by other external forces in the mounting seat and can freely rotate relatively in the mounting seat, and the first cylinder 7 in the wedge-shaped pin can drive the stopper rod 1 to swing, which is a state when the stopper rod 1 is not fastened.

When the stopper body 1 needs to be fastened, as shown in fig. 3, the wedge-shaped pin 22 is knocked or pushed to enable the large end of the wedge-shaped pin 22 to be located in the strip-shaped hole 23, the wedge-shaped pin 22 can gradually press the second pressing plate 15 downwards in the moving process, the second pressing plate 15 sequentially drives the disc spring 14, the first pressing plate 12 and the ejector rod 11 to downwards move for a short distance, due to the existence of the first through hole 10 and the boss 9, the ejector rod 11 only can push the first hemisphere 5 to downwards move in the first mounting seat 3 in the downwards moving process, the second hemisphere 6 is always located on the boss 9, and therefore the first hemisphere 5 and the second hemisphere 6 are tightly tensioned in the mounting seat and cannot relatively rotate any more, the first cylinder 7 and the second cylinder 8 inside the first hemisphere are fixed, and the stopper body 1 is fastened and positioned. Compare in traditional two nut fastening operations, the utility model discloses it is easy and simple to handle to have the fastening, can effectively avoid the stopper stick to produce the skew and the damage that brings, improves the life of its life and mouth of a river.

Preferably, as shown in fig. 5, the axial pressing mechanism may further include a tightening nut 20, the tightening nut 20 is located at an upper portion of the first pressing plate 12, an external thread 21 is disposed on an outer periphery of an upper end of the second column 8, the tightening nut 20 is matched with the external thread 21, the first pressing plate 12 can be driven to move down by rotating the tightening nut 20, the ejector rod 11 is further used for pushing the first hemisphere 5 to move down in the first mounting seat 3, the first hemisphere 5 and the second hemisphere 6 are tensioned in the mounting seat, fastening and positioning operations on the stopper rod 1 are completed, and the stopper rod 1 cannot be bent by rotating the tightening nut 20 in the structure.

Further, the connecting piece between the stopper body 1 and the first cylinder 7 comprises a first connecting plate 24, a second connecting plate 25 and a connecting column 16, wherein the first connecting plate 24 and the second connecting plate 25 are horizontally arranged, the first connecting plate 24 is fixedly connected at the bottom end of the first cylinder 7, and the connecting column 16 is fixedly arranged between the first connecting plate 24 and the second connecting plate 25. As shown in fig. 7, the connecting column 16 is located at one side of the second connecting plate 25, a third through hole 17 is further formed in the second connecting plate 25, a screw 18 is installed at the top end of the stopper body 1, the screw 18 is located in the third through hole 17, a fastening nut 19 is further installed on the screw 18 in a matched manner, and the stopper body 1 can be fixedly installed on the second connecting plate 25 by rotating the fastening nut 19. The connecting post 16 on one side provides a working space for tools such as a wrench for mounting and dismounting the fastening nut 19, and can ensure smooth dismounting operation between the stopper body 1 and the second connecting plate 25.

If the traditional stopper fastened by double nuts deviates in the installation and fastening process, when the phenomenon of nozzle breakout occurs in the use process, the stopper is driven by the lifting mechanism to move downwards continuously in order to completely block the nozzle, and the deviated stopper only seriously abrades one side of the nozzle in the moving process and cannot be adjusted. And an automatically regulated stopper stick, not only can prevent when the installation that the relative mouth of a river of stopper stick from taking place the skew, can discover in the use that the mouth of a river appears small bleed-out sign moreover, only need suitably cancel the pressure of first clamp plate (12), make first hemisphere 5 in the mount pad and second hemisphere 6 closed release the locking, make and to make stopper stick body 1 aim at the mouth of a river position again under the action of gravity, later rise again tightly fixedly. The stopper rod body 1 moves down under the drive of the lifting mechanism to block the water gap again, so that the condition that one side of the stopper rod body 1 and the water gap is excessively abraded on the premise of ensuring the water gap sealing is avoided, the service life of the stopper rod is prolonged, and the whole steelmaking operation is further ensured.

Technical scheme of the utility model not be restricted to the utility model the within range of embodiment. The technical contents not described in detail in the present invention are all known techniques.

Claims

1. An automatic adjust stopper rod, includes stopper rod body (1), its characterized in that: the stopper rod comprises a stopper rod body (1) and a fastening adjusting device, wherein the stopper rod body is connected with the fastening adjusting device through the connecting piece;

the fastening and adjusting device comprises a first mounting seat (3) and a second mounting seat (4), a first hemisphere (5) is installed in the first mounting seat (3) in a matching manner, a second hemisphere (6) is installed in the second mounting seat (4) in a matching manner, the first hemisphere (5) and the second hemisphere (6) form a sphere, a first cylinder (7) is installed inside the first hemisphere (5), a second cylinder (8) is installed inside the second hemisphere (6), the first cylinder (7) is fixedly connected with the second cylinder (8), the diameter of the second cylinder (8) is smaller than that of the first cylinder (7), a boss (9) is formed at the position where the first cylinder (7) and the second cylinder (8) are connected, the bottom of the second hemisphere (6) is matched with the boss (9), a first through hole (10) is formed inside the second hemisphere (6), and an ejector rod (11) is installed in the first through hole (10) in a matching manner, the bottom end of the ejector rod (11) is in contact with the first hemispheroid (5), a first pressing plate (12) is arranged at the top end of the ejector rod (11), the first pressing plate (12) is sleeved on the second hemispheroid (8), an axial pressing mechanism is installed on the upper portion of the first pressing plate (12), and the axial pressing mechanism can push the ejector rod (11) and the first hemispheroid (5) to move downwards relative to the first cylinder (7);

the bottom of the first column (7) is fixedly connected with the stopper rod body (1) through a connecting piece.

2. A self-adjusting stopper rod according to claim 1, wherein: axial hold-down mechanism includes wedge round pin (22), and the upper end level of second cylinder (8) is seted up with wedge round pin (22) matched with bar hole (23), and wedge round pin (22) are located the upper portion position of first clamp plate (12), can drive first clamp plate (12) and move down when wedge round pin (22) insert bar hole (23) from tip to main aspects gradually.

3. A self-adjusting stopper rod according to claim 2, wherein: the axial pressing mechanism further comprises a disc spring (14) and a second pressing plate (15), wherein the disc spring (14) is sleeved on the periphery of the second cylinder (8) and located on the upper portion of the first pressing plate (12), the second pressing plate (15) is sleeved on the periphery of the second cylinder (8) and located on the upper portion of the disc spring (14), the wedge-shaped pin (22) is located on the upper portion of the second pressing plate (15), and the wedge-shaped pin (22) can press the second pressing plate (15), the disc spring (14) and the first pressing plate (12) to move downwards.

4. A self-adjusting stopper rod according to claim 1, wherein: the axial pressing mechanism comprises a screwing nut (20), the screwing nut (20) is located on the upper portion of the first pressing plate (12), an external thread (21) is arranged on the periphery of the upper end of the second column body (8), the screwing nut (20) is matched with the external thread (21), and the screwing nut (20) is rotated to drive the first pressing plate (12) to move downwards.

5. A self-adjusting stopper rod according to claim 1, wherein: the connecting piece includes first connecting plate (24), second connecting plate (25) and spliced pole (16), wherein first connecting plate (24) and second connecting plate (25) level set up, first connecting plate (24) fixed connection is in the bottom of first cylinder (7), spliced pole (16) fixed mounting is between first connecting plate (24) and second connecting plate (25), spliced pole (16) are located one side position of second connecting plate (25), third through-hole (17) have still been seted up on second connecting plate (25), screw rod (18) are installed on the top of stopper rod body (1), screw rod (18) are located third through-hole (17), fastening nut (19) are still installed in the cooperation on screw rod (18), fastening nut (19) can be with stopper rod body (1) fixed mounting on second connecting plate (25).