CN220515035U - Strip mill working roll shaft connecting supporting mechanism, shaft connecting supporting device and mill - Google Patents

Abstract

The utility model provides a strip mill working roll connecting shaft supporting mechanism, a connecting shaft supporting device, a rolling mill, a supporting frame and a pushing mechanism, wherein an output shaft of the pushing mechanism is connected with the supporting head, the supporting frame is combined on a housing of the rolling mill, the supporting frame is positioned on the side surface of the housing parallel to the rolling direction of the rolling mill, and the pushing mechanism is detachably fixed on the supporting frame. The utility model can solve the problem of high manufacturing difficulty of the rolling mill caused by the fixing mode of the prior work roll connecting shaft supporting mechanism of the strip steel rolling mill.

Description

Strip mill working roll shaft connecting supporting mechanism, shaft connecting supporting device and mill

Technical Field

The utility model relates to the technical field of metallurgical steel rolling, in particular to a strip mill working roll shaft connecting and supporting mechanism, a shaft connecting and supporting device and a mill.

Background

After finishing a rolling cycle, the hot-rolled strip mill needs to replace the working roll seriously due to roller abrasion, and a special connecting shaft supporting mechanism is arranged on the transmission side of the mill for facilitating the installation of a new working roll. The shaft connecting supporting mechanism is opened during rolling, the shaft connecting supporting is only needed during roll changing, and the working times per day are not more than 3 times. At present, the connecting shaft supporting and fastening mechanisms in the market are fixed on the bending roller blocks, the connecting beams which are cantilevered by about one meter are needed on the transmission side bending roller blocks in the structural form, and the large-section overhanging structure leads to high manufacturing cost, high manufacturing difficulty and difficult guarantee of precision of the rolling mill.

Disclosure of Invention

The utility model aims to provide a strip mill working roll connecting shaft supporting mechanism, a connecting shaft supporting device and a mill, which are used for solving the problem that the manufacturing difficulty of the mill is high due to the fixing mode of the existing strip mill working roll connecting shaft supporting mechanism.

In order to solve the technical problems, the utility model provides a strip mill working roll connecting shaft tightening mechanism which comprises a tightening head, a thrust mechanism, a supporting frame and a thrust mechanism, wherein an output shaft of the thrust mechanism is connected with the tightening head, the supporting frame is combined on a housing of a mill, the supporting frame is positioned on the side surface of the housing parallel to the rolling direction of the mill, and the thrust mechanism is detachably fixed on the supporting frame.

Optionally, the thrust mechanism includes electrohydraulic push rod and guide body, the flange of electrohydraulic push rod tip with the guide body holds in the palm tightly the head of electrohydraulic push rod with hold in the palm tightly the head and be connected, hold in the palm tightly the head with guide body sliding connection, the guide body can dismantle fixedly set up on the supporting rack, the head of electrohydraulic push rod is used for the drive hold in the palm tightly the head is close to and keep away from the work roll.

Optionally, the device further comprises a positioning mechanism for positioning the supporting frame, wherein the positioning mechanism is arranged on the housing, and a positioning part matched with the positioning mechanism is arranged on the supporting frame.

Optionally, the positioning mechanism includes a horizontal positioning member and a vertical positioning member, and the positioning portion includes a first positioning slot, a second positioning slot, a third positioning slot and a fourth positioning slot; the first positioning groove and the second positioning groove are formed in the supporting frame, the third positioning groove and the fourth positioning groove are formed in the housing, the first positioning groove and the third positioning groove are respectively matched with the horizontal positioning piece, the second positioning groove and the fourth positioning groove are respectively matched with the vertical positioning piece, the horizontal positioning piece is arranged in the first positioning groove and the third positioning groove, and the vertical positioning piece is arranged in the second positioning groove and the fourth positioning groove.

Optionally, the horizontal positioning piece is a flat key, the vertical positioning piece is a flat key, and the horizontal positioning piece and the vertical positioning piece are vertically arranged.

Optionally, the support frame includes a support body, and a support cover engaged with the support body, and the guide body is disposed between the support cover and the support body.

Optionally, the supporting body with the faying surface between the supporting cover is vertical to be set up, the work roll includes work roll and lower work roll, the guide body the hold in the palm tight head with thrust mechanism's quantity is two, the supporting body has seted up first last semicircle groove and first lower semicircle groove, the supporting cover on seted up with first last semicircle groove matched with second last semicircle groove, still set up on the supporting cover with first lower semicircle groove matched with second lower semicircle groove, one the guide body sets up first last semicircle groove with between the second last semicircle groove, another the guide body sets up first lower semicircle groove cooperation with between the second lower semicircle groove.

Optionally, the horizontal section of supporting rack is L type, belted steel rolling mill work roll connecting axle holds in palm tight mechanism still includes the reinforcing plate, the reinforcing plate is fixed to be set up on the supporting rack, just one side of reinforcing plate with the minor face fixed connection of L type, the another side of reinforcing plate with the long limit fixed connection of L type.

The utility model also provides a connecting shaft supporting device which comprises two groups of the connecting shaft supporting mechanisms of the working rolls of the strip mill, wherein the two groups of the connecting shaft supporting mechanisms are arranged on two sides of the working rolls.

The utility model also provides a rolling mill, which comprises a housing, a roll bending block and the shaft connecting tightening device, wherein the support frame is combined on the housing of the rolling mill, the support frame is positioned on the side surface of the housing parallel to the rolling direction of the rolling mill, and the roll bending block is positioned on the side surface of the housing perpendicular to the rolling direction of the rolling mill.

The utility model provides a strip mill working roll shaft connecting and supporting mechanism, a shaft connecting and supporting device and a mill, which have the following beneficial effects:

the thrust mechanism is detachably fixed on the support frame by combining the support frame on a housing of the rolling mill, wherein the support frame is positioned on the side surface of the housing parallel to the rolling direction of the rolling mill, so that the thrust mechanism is fixed on the housing through the support frame; the part of the components for realizing the function of supporting the connecting shaft is prevented from being fixed on the roll bending block, a connecting beam overhanging by about one meter on the transmission side roll bending block is not needed, and the manufacturing difficulty of the rolling mill can be reduced.

Drawings

FIG. 1 is a front view of a work roll coupler shaft tightening mechanism for a strip mill in accordance with an embodiment of the present utility model;

FIG. 2 is a cross-sectional view of the work roll chock mechanism of the strip mill of FIG. 1 taken along line A-A;

fig. 3 is a K-way view of the work roll chock mechanism of the strip mill of fig. 2.

Reference numerals illustrate:

100-a strip mill working roll connecting shaft supporting mechanism; 110-tightening the head; 121-an electrohydraulic push rod; 122-guide body; 130-a support frame; 131-a support body; 132-a support cover; 140-housing; 151-horizontal positioning piece; 152-vertical positioning; 161-upper work rolls; 162-lower work rolls; 170-reinforcing plate.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal," "vertical," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1, 2 and 3, fig. 1 is a front view of a work roll shaft supporting mechanism 100 of a strip mill according to an embodiment of the present utility model, fig. 2 is a cross-sectional view of the work roll shaft supporting mechanism 100 of the strip mill along line A-A in fig. 1, fig. 3 is a K-direction view of the work roll shaft supporting mechanism 100 of the strip mill in fig. 2, the present embodiment provides a work roll shaft supporting mechanism 100 of a strip mill, comprising a supporting head 110 and a thrust mechanism, an output shaft of the thrust mechanism is connected with the supporting head 110, and further comprising a supporting frame 130, the supporting frame 130 is engaged on a housing 140 of the mill, the supporting frame 130 is located on a side of the housing 140 parallel to a rolling direction of the mill, and the thrust mechanism is detachably fixed on the supporting frame 130.

The thrust mechanism is detachably fixed on the support 130 by combining the support 130 on the housing 140 of the rolling mill and positioning the support 130 on the side surface of the housing 140 parallel to the rolling direction of the rolling mill, so that the thrust mechanism is fixed on the housing 140 through the support 130; the part of the components for realizing the function of supporting the connecting shaft is prevented from being fixed on the roll bending block, a connecting beam overhanging by about one meter on the transmission side roll bending block is not needed, and the manufacturing difficulty of the rolling mill can be reduced.

Wherein, the combination of the supporting frame 130 and the housing 140 means that the supporting frame and the housing 140 are detachably and fixedly connected through screws or bolts.

Referring to fig. 2 and 3, the work roll spindle supporting mechanism 100 of the strip mill further includes a positioning mechanism for positioning the support 130, the positioning mechanism is disposed on the housing 140, and a positioning portion matched with the positioning mechanism is disposed on the support 130. The positioning mechanism can be used for positioning the support 130 and the housing 140, so that the housing 140 and the support 130 are convenient to install, and the positioning accuracy and reliability of the strip mill working roll connecting shaft supporting mechanism 100 can be improved.

Referring to fig. 2 and 3, the positioning mechanism includes a horizontal positioning member 151 and a vertical positioning member 152, and the positioning part includes a first positioning groove, a second positioning groove, a third positioning groove and a fourth positioning groove; the first positioning groove and the second positioning groove are formed in the supporting frame 130, the third positioning groove and the fourth positioning groove are formed in the housing 140, the first positioning groove and the third positioning groove are respectively matched with the horizontal positioning piece 151, the second positioning groove and the fourth positioning groove are respectively matched with the vertical positioning piece 152, the horizontal positioning piece 151 is arranged in the first positioning groove and the third positioning groove, and the vertical positioning piece 152 is arranged in the second positioning groove and the fourth positioning groove. In other embodiments, the positioning mechanism may include a spline, where the positioning portion includes a first spline groove formed on the housing 140 and a second spline groove formed on the support 130, and the spline is disposed in the first spline groove and the second spline groove; the positioning mechanism may include at least three pins disposed on different straight lines, the positioning portion includes a first pin hole formed on the housing 140 and a second pin hole formed on the support 130, and the pins are disposed in the pin holes. In this embodiment, the positioning mechanism includes a horizontal positioning member 151 and a vertical positioning member 152, where the horizontal positioning member 151 and the vertical positioning member 152 play a role in positioning, and simultaneously play a role in bearing the force when the support frame 130 and the housing 140 relatively move, so as to improve the stability of the mandrel supporting mechanism 100 of the working roll of the strip mill.

In this embodiment, the horizontal positioning member 151 is a flat key, the vertical positioning member 152 is a flat key, and the horizontal positioning member 151 and the vertical positioning member 152 are vertically disposed.

The horizontal positioning piece 151 and the vertical positioning piece 152 are respectively and detachably and fixedly connected with the housing 140. For example by means of a screw connection.

The thrust mechanism comprises an electro-hydraulic push rod 121 and a guide body 122, a flange at the end part of the electro-hydraulic push rod 121 is combined with the guide body 122, the head part of the electro-hydraulic push rod 121 is connected with the supporting head 110, the supporting head 110 is slidably connected with the guide body 122, the guide body 122 is detachably and fixedly arranged on the supporting frame 130, and the head part of the electro-hydraulic push rod 121 is used for driving the supporting head 110 to be close to and far away from the working roller. In other embodiments, the bracket head 110 may be pushed and pulled by a hydraulic cylinder or a hydraulic cylinder driven linkage. In this embodiment, because the electro-hydraulic push rod 121 is adopted, compared with the mode of pushing and pulling by a hydraulic cylinder or the mode of pushing and pulling by a hydraulic cylinder driving link mechanism, the maintenance amount can be reduced and the energy is saved, in addition, the electro-hydraulic push rod 121 has the characteristic of self-locking, the safety of an opening position and a supporting position and the safety of personnel operation in a maintenance period can be ensured in the production process.

The combination of the flange at the end of the electro-hydraulic push rod 121 and the guide body 122 means that the flange at the end of the electro-hydraulic push rod 121 is detachably and fixedly connected with the guide body 122 through a screw or a bolt.

Referring to fig. 3, the support frame 130 includes a support body 131, and a support cover 132 coupled to the support body 131, and the guide 122 is disposed between the support cover 132 and the support body 131.

The engagement of the support body 131 and the support cover 132 means that the support body 131 and the support cover 132 are detachably and fixedly connected by a screw or a bolt.

Preferably, the joint surface between the supporting body 131 and the supporting cover 132 is disposed vertically. Such as to enhance the reliability of the connection of the support frame 130 and the guide body 122.

Further, the working rolls include an upper working roll 161 and a lower working roll 162, the number of the guide bodies 122, the supporting heads 110 and the number of the thrust mechanisms are two, the supporting main body 131 is provided with a first upper semicircular groove and a first lower semicircular groove, the supporting cover 132 is provided with a second upper semicircular groove matched with the first upper semicircular groove, the supporting cover 132 is also provided with a second lower semicircular groove matched with the first lower semicircular groove, one guide body 122 is arranged between the first upper semicircular groove and the second upper semicircular groove, and the other guide body 122 is arranged between the first lower semicircular groove matched with the second lower semicircular groove.

The support 130 has an L-shaped horizontal section.

The strip mill working roll shaft supporting mechanism 100 further comprises a reinforcing plate 170, the reinforcing plate 170 is fixedly arranged on the supporting frame 130, one side of the reinforcing plate 170 is fixedly connected with the short side of the L shape, and the other side of the reinforcing plate 170 is fixedly connected with the long side of the L shape. The support frame 130 can be reinforced by providing the reinforcing plate 170, so that the strength and stability of the work roll joint shaft tightening mechanism 100 of the strip mill can be improved.

In this embodiment, the working process of the work roll spindle supporting mechanism 100 of the strip mill is as follows:

when the strip mill working roll connecting shaft tightening mechanism 100 works, the head of the electrohydraulic push rod 121 drives the tightening head 110 to move relative to the guide body 122, so that the tightening head 110 approaches and drags the working roll; when the work of the strip mill work roll connecting shaft supporting mechanism 100 connecting shaft supporting is completed, the head of the electrohydraulic push rod 121 drives the supporting head 110 to move relative to the guide body 122, so that the supporting head 110 is far away from the work roll; when the strip mill working roll connecting shaft tightening mechanism 100 does not work, the head of the electrohydraulic push rod 121 does not drive the tightening head 110 to move relative to the guide body 122, so that the tightening head 110 keeps a state of being far away from the working roll.

The present embodiment also provides a spindle bracket device, which comprises two groups of the above-mentioned spindle bracket mechanisms 100 for the working rolls of the strip mill, which are arranged on both sides of the working rolls.

The embodiment also provides a rolling mill, which comprises the housing 140 and the roll bending block, and further comprises the shaft connecting and tightening device, wherein the supporting frame 130 is combined on the housing 140 of the rolling mill, the supporting frame 130 is positioned on the side surface of the housing 140 parallel to the rolling direction of the rolling mill, and the roll bending block is positioned on the side surface of the housing 140 perpendicular to the rolling direction of the rolling mill.

The above description is only illustrative of the preferred embodiments of the present utility model and is not intended to limit the scope of the present utility model, and any alterations and modifications made by those skilled in the art based on the above disclosure shall fall within the scope of the appended claims.

Claims (10)

1. The utility model provides a belted steel rolling mill work roll connecting axle holds in palm tight mechanism, includes holds in the palm tight head and thrust mechanism, thrust mechanism's output shaft with hold in the palm tight head and be connected, its characterized in that still includes the supporting rack, the supporting rack is closing on the housing of rolling mill, just the supporting rack is located the housing is on being on a parallel with the side of rolling direction of rolling mill, thrust mechanism can dismantle and fix on the supporting rack.

2. The strip mill working roll shaft supporting mechanism according to claim 1, wherein the thrust mechanism comprises an electrohydraulic push rod and a guide body, a flange at the end part of the electrohydraulic push rod is combined with the guide body, the head part of the electrohydraulic push rod is connected with the supporting head, the supporting head is slidably connected with the guide body, the guide body is detachably and fixedly arranged on the supporting frame, and the head part of the electrohydraulic push rod is used for driving the supporting head to be close to and far away from the working roll.

3. The strip mill work roll spindle bracket mechanism of claim 1, further comprising a positioning mechanism for positioning the support frame, wherein the positioning mechanism is disposed on the housing, and the support frame is provided with a positioning portion matched with the positioning mechanism.

4. The strip mill work roll spindle bracket mechanism of claim 3, wherein the positioning mechanism comprises a horizontal positioning piece and a vertical positioning piece, and the positioning part comprises a first positioning groove, a second positioning groove, a third positioning groove and a fourth positioning groove; the first positioning groove and the second positioning groove are formed in the supporting frame, the third positioning groove and the fourth positioning groove are formed in the housing, the first positioning groove and the third positioning groove are respectively matched with the horizontal positioning piece, the second positioning groove and the fourth positioning groove are respectively matched with the vertical positioning piece, the horizontal positioning piece is arranged in the first positioning groove and the third positioning groove, and the vertical positioning piece is arranged in the second positioning groove and the fourth positioning groove.

5. The strip mill work roll spindle bracket mechanism of claim 4 wherein the horizontal positioning member is a flat key and the vertical positioning member is a flat key, the horizontal positioning member being disposed perpendicular to the vertical positioning member.

6. The strip mill work roll spindle bracket mechanism of claim 2 wherein the support bracket includes a support body and a support cover engaged with the support body, the guide body being disposed between the support cover and the support body.

7. The strip mill work roll spindle bracket mechanism of claim 6, wherein the joint surface between the support body and the support cover is vertically arranged, the work roll comprises an upper work roll and a lower work roll, the number of the guide body, the bracket head and the thrust mechanism is two, the support body is provided with a first upper semicircular groove and a first lower semicircular groove, the support cover is provided with a second upper semicircular groove matched with the first upper semicircular groove, the support cover is also provided with a second lower semicircular groove matched with the first lower semicircular groove, one guide body is arranged between the first upper semicircular groove and the second upper semicircular groove, and the other guide body is arranged between the first lower semicircular groove matched with the second lower semicircular groove.

8. The strip mill work roll spindle bracket mechanism of claim 1, wherein the horizontal section of the support frame is L-shaped, the strip mill work roll spindle bracket mechanism further comprises a reinforcing plate fixedly arranged on the support frame, one side of the reinforcing plate is fixedly connected with the short side of the L-shaped, and the other side of the reinforcing plate is fixedly connected with the long side of the L-shaped.

9. A joint shaft supporting device, characterized by comprising two groups of the joint shaft supporting mechanisms of the strip mill working roll according to any one of claims 1 to 8, which are arranged at two sides of the working roll.

10. A rolling mill comprising a housing and a roll bending block, characterized by further comprising the joint shaft tightening device according to claim 9, wherein the support frame is fitted on the housing of the rolling mill, and the support frame is located on a side of the housing parallel to the rolling direction of the rolling mill, and the roll bending block is located on a side of the housing perpendicular to the rolling direction of the rolling mill.