Hot-rolled plate working roll door plate locking device and rolling mill housing

Abstract

The utility model provides a hot rolled plate work roll door locking plate device and rolling mill housing, including two door locking structures, the two door locking structures are respectively located on the rack at the two sides of the rolling mill housing, each door locking structure includes a door locking plate, a guide assembly and a driving mechanism, the guide assembly and the driving mechanism are both connected to the rolling mill housing, the door locking plate is provided with a longitudinal guide groove matched with the guide assembly, the guide assembly is arranged in the longitudinal guide groove, and the driving end of the driving mechanism is fixedly connected with the door locking plate so that the door locking plate can be movably arranged on the rolling mill housing in the longitudinal direction. Therefore, under the limiting guide of the guide assembly, the door opening and closing precision accuracy of the door locking plate can be ensured, the uniform and consistent gap between the door locking plate and the working roller bearing seat is ensured, the effect of limiting the axial movement of the working roller during door closing is ensured, the opening and closing process of the door locking plate is smooth under the effect of ensuring the guide performance, and the service life of the door locking plate is prolonged. And the condition that the roller cannot be opened due to deviation is avoided, so that the roller replacement efficiency is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of rolling mill arch equipment, in particular to a hot-rolled plate working roll locking door plate device and a rolling mill arch. Background Art

[0002] The hot-rolled plate rough rolling working roll lock plate device is usually installed on the operating side of the rolling mill. Its main function is to limit the working roll from large axial movement (the axial movement is not more than 5mm) to avoid affecting the quality of the rolled billet.

[0003] However, due to unreasonable structural design in the prior art, the gap between the lock door plate and the working roll bearing seat is often uneven. When the working roll bearing seat is against the lock door plate lining, if the lock door plate tilts outward due to poor guidance, the lock door plate cannot be opened, thereby affecting the roll changing progress. In this case, the roll changing trolley is needed to push the working roll to the transmission side to open the lock door plate, which greatly increases the roll changing time and reduces work efficiency.

[0004] In view of this, it is necessary to propose a hot-rolled plate working roll locking door plate device and a rolling mill arch to solve or at least alleviate the above-mentioned defects. Utility Model Content

[0005] The main purpose of the utility model is to provide a hot-rolled plate working roll locking door plate device to solve the problem that the locking door plate in the prior art has poor guiding performance and causes inconvenience in opening and closing the locking door plate.

[0006] To achieve the above-mentioned purpose, the utility model provides a hot-rolled plate working roll locking door plate device, comprising two locking door structures for being arranged on a rolling mill arch, the two locking door structures being arranged opposite to each other along the width direction of the rolling mill arch, and being respectively located on the frames on both sides of the rolling mill arch; wherein,

[0007] Each of the door locking structures includes a door locking plate, a guide assembly and a driving mechanism. The guide assembly and the driving mechanism are both connected to the rolling mill arch. The door locking plate is provided with a longitudinal guide groove matching the guide assembly. The guide assembly is arranged in the longitudinal guide groove. The driving end of the driving mechanism is fixedly connected to the door locking plate so that the door locking plate can be movably arranged on the rolling mill arch along the longitudinal direction.

[0008] Preferably, the guide assembly includes a plurality of guide units arranged at intervals along the longitudinal direction, each of the guide units includes two guide keys arranged opposite to each other in the transverse direction, the guide keys are arranged in the longitudinal guide grooves, each of the guide keys is provided with a bolt hole, and the frame of the rolling mill arch is provided with connecting holes arranged corresponding to the bolt holes, and the guide keys are fixed to the rolling mill arch by means of fixing bolts that penetrate the bolt holes and the connecting holes in sequence.

[0009] Preferably, the guide assembly also includes two longitudinal guide plates arranged opposite to each other in the transverse direction, the longitudinal guide plates are provided with through holes arranged corresponding to the bolt holes, the longitudinal guide plates are fixed to the guide keys by the bolts passing through the through holes and the bolt holes in sequence, and the longitudinal guide plates are arranged above the door lock plate.

[0010] Preferably, each of the locking door structures also includes a lining plate and an adjustment bolt, and one end of the locking door plate close to the inner side of the rolling mill arch is recessed to form a notch groove matching the lining plate, and a threaded hole is opened, wherein the lining plate is arranged at the notch groove, and the adjustment bolt is telescopically adjustable in the threaded hole, and the bottom end of the adjustment bolt extends out of the threaded hole and is fixedly connected to the lining plate.

[0011] Preferably, the door lock plate is provided with stop plates protruding outward along both sides thereof in a lateral direction, and the side walls of the longitudinal guide plate are arranged to fit the stop plates.

[0012] Preferably, the driving mechanism includes a locking cylinder and a piston rod extending longitudinally, the locking cylinder is connected to the frame of the rolling mill arch, and is spaced apart at one end of the locking door plate away from the working roll bearing seat, one end of the piston rod is fixed in the locking cylinder, and the other end of the piston rod is fixedly connected to the locking door plate.

[0013] Preferably, the number of the guide units is two, and the two guide units are spaced apart in the longitudinal direction.

[0014] Preferably, the locking cylinder is detachably arranged on the frame of the rolling mill arch.

[0015] Preferably, the width of the lining plate is 60 mm to 70 mm.

[0016] The present application also provides a rolling mill arch, comprising a working roll bearing seat and a frame arranged in a "door" shape, wherein the working roll bearing seat is connected to the frame, and also comprises the hot-rolled plate working roll locking door plate device as described above, wherein the two locking door structures of the hot-rolled plate working roll locking door plate device are arranged opposite to each other on the frame in the transverse direction, and are telescopically arranged toward the working roll bearing seat.

[0017] Compared with the prior art, the utility model provides the following beneficial effects:

[0018] The utility model provides a hot-rolled plate working roll lock door plate device and a rolling mill arch, comprising two lock door structures for being arranged on the rolling mill arch, the two lock door structures are arranged oppositely along the width direction of the rolling mill arch, and are respectively located on the frames on both sides of the rolling mill arch, each lock door structure comprises a lock door plate, a guide assembly and a drive mechanism, the guide assembly and the drive mechanism are both connected to the rolling mill arch, the lock door plate is provided with a longitudinal guide groove matched with the guide assembly, the guide assembly is arranged in the longitudinal guide groove, and the drive end of the drive mechanism is fixedly connected to the lock door plate, so that the lock door plate can be movably arranged on the rolling mill arch along the longitudinal direction. In this way, under the limiting guidance of the guide assembly, the accuracy of the opening and closing of the lock door plate can be guaranteed, and the gap between the lock door plate and the working roll bearing seat can be ensured to be uniform, so as to ensure the effect of limiting the axial movement of the working roll when closing the door, and under the effect of ensuring the guiding effect, the opening and closing process of the lock door plate is smooth, and there will be no deviation that causes the situation that it cannot be opened, thereby ensuring the efficiency of roll replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0020] Figure 1 A three-dimensional schematic diagram of an application scenario of the overall structure in one embodiment of the utility model;

[0021] Figure 2 It is a three-dimensional schematic diagram of a door lock structure in one embodiment of the utility model;

[0022] Figure 3 It is a three-dimensional schematic diagram of a door lock structure in one embodiment of the utility model after removing the longitudinal guide plate;

[0023] Figure 4 It is a plan view of a door lock structure in one embodiment of the utility model.

[0024] The purpose, features and advantages of the present invention will be further described in conjunction with the embodiments and with reference to the accompanying drawings.

[0025] Description of Figure Numbers:

[0026] 10. Locking door structure; 110. Locking door plate; 111. Longitudinal guide groove; 112. Notch groove; 113. Stop plate; 120. Guide assembly; 121. Guide key; 122. Fixing bolt; 123. Longitudinal guide plate; 130. Driving mechanism; 131. Locking cylinder; 132. Piston rod; 140. Lining plate; 150. Adjusting bolt; 20. Rolling mill arch; 210. Working roll bearing seat; 220. Frame. DETAILED DESCRIPTION

[0027] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0030] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0031] Please see attached Figure 1-4In one embodiment of the utility model, a hot-rolled plate working roll locking plate 110 device includes two locking door structures 10 for being arranged on a rolling mill arch 20. The two locking door structures 10 are arranged opposite to each other along the width direction of the rolling mill arch 20 and are respectively located on the frames 220 on both sides of the rolling mill arch 20. First of all, it should be noted that the longitudinal direction in the present application refers to the telescopic movement direction along the locking door plate 110, and the transverse direction refers to the width direction of the locking door plate 110 itself perpendicular to the movement direction; this is different from the prior art in which the gap between the locking door plate 110 and the working roller bearing seat 210 is often uneven due to unreasonable structural design. When the working roller bearing seat 210 is against the locking door plate 110 lining plate 140, if the locking door plate 110 tilts outward due to poor guidance, the locking door plate 110 will not be opened, thereby affecting the progress of roller changing. In this case, the working roller needs to be pushed to the transmission side by a roller changing trolley to open the locking door plate 110, which greatly increases the roller changing time and reduces work efficiency. The present application solves the above-mentioned defects in the prior art by providing a hot-rolled plate working roller locking door plate 110 device. The details are as follows:

[0032] Each of the door locking structures 10 includes a door locking plate 110, a guide assembly 120 and a driving mechanism 130. The guide assembly 120 and the driving mechanism 130 are both connected to the rolling mill arch 20. The door locking plate 110 is provided with a longitudinal guide groove 111 that matches the guide assembly 120. The guide assembly 120 is arranged in the longitudinal guide groove 111. The driving end of the driving mechanism 130 is fixedly connected to the door locking plate 110 so that the door locking plate 110 can be movably arranged on the rolling mill arch 20 along the longitudinal direction.

[0033] Specifically, the hot-rolled plate working roll locking door plate 110 device in the present application includes two locking door structures 10, and the locking door structures 10 form a switch between opening and closing the door by performing relative telescopic movement, thereby limiting the working roll from undergoing large axial movement when the door is closed, and allowing the roll to be replaced in time when the door is open. Therefore, the two locking door structures 10 are arranged relative to each other in the longitudinal direction and are respectively located on the frames 220 on both sides of the rolling mill arch 20, so that when extending out of the frame 220, the extended portion can abut against the working roll bearing seat 210 located in the frame 220.

[0034] Each of the door lock structures 10 includes a door lock plate 110, a guide assembly 120 and a drive mechanism 130. The door lock plate 110 is a movable main component used to limit the axial movement of the working roller, and is arranged in a rectangular shape; the drive mechanism 130 is used as a power source for the movement of the door lock plate 110 to drive the door lock plate 110 to move; and the guide assembly 120 is used to guide and limit the displacement of the door lock plate 110, so that its displacement has a guiding property, so as to improve the accuracy of opening / closing the door. Therefore, a longitudinal guide groove 111 for setting the guide assembly 120 is opened on the lock door plate 110, and the longitudinal guide groove 111 extends longitudinally so that the lock door plate 110 can move longitudinally toward the working roller bearing seat 210 after the guide limit. Therefore, in order to ensure the guiding effect, the longitudinal guide groove 111 is matched with the guide assembly 120. The matching setting here means that the width of the longitudinal guide groove 111 is consistent with the width of the guide assembly 120 along the transverse direction, so as to ensure that the limit is effective.

[0035] In this way, when the locking door plate 110 is driven to move by the driving mechanism 130, the locking door plate 110 is guided and limited by the limiting assembly to the longitudinal limiting groove, so that the locking door plates 110 on both sides of the working roller bearing seat 210 can move relative to each other in the longitudinal direction, so that the gap between the working roller bearing seat 210 and the extended locking door plate 110 can be consistent, and this gap is the maximum axial force of the working roller (not more than 5mm). If the working roller moves axially, the working roller bearing seat 210 will fit with the locking door plate 110 to be limited; when the roller needs to be changed, the locking door plate 110 can be driven in the reverse direction (i.e., retracted) by the driving mechanism 130 to facilitate rapid roller change and improve the progress of roller change.

[0036] As a preferred embodiment of the utility model, the guide assembly 120 includes a plurality of guide units arranged at intervals along the longitudinal direction, each of the guide units includes two guide keys 121 arranged opposite to each other in the transverse direction, the guide keys 121 are arranged in the longitudinal guide grooves 111, each of the guide keys 121 is provided with a bolt hole, and the frame 220 of the rolling mill arch 20 is provided with connecting holes arranged corresponding to the bolt holes, and the guide keys 121 are fixed to the rolling mill arch 20 by means of fixing bolts 122 that penetrate the bolt holes and the connecting holes in sequence.

[0037] It should be noted that the plurality of guide units are arranged at intervals along the longitudinal direction to ensure that the rectangular lock door plate 110 can ensure the guiding and limiting effect at each longitudinal position, and each of the units includes two guide keys 121 arranged opposite to each other in the transverse direction, so that the guide keys 121 are distributed in a matrix, thereby limiting the movement of the lock door plate 110 along the length direction (i.e., longitudinal direction) of the matrix. It can be understood that the guide key 121 is a commonly used component for limiting, which is small in size and easy to install. It can be connected by bolts by opening bolt holes on the guide key 121, so that it can be disassembled and replaced at any time; therefore, in order to make the guide key 121 fixed to the rolling mill arch 20, it is necessary to open a connecting hole corresponding to the bolt hole on the frame 220 of the rolling mill arch 20. The corresponding setting here means that the hole diameter of the connecting hole and the bolt hole are consistent and coaxial.

[0038] As a preferred embodiment of the utility model, the guide assembly 120 also includes two longitudinal guide plates 123 arranged opposite to each other in the transverse direction, and the longitudinal guide plates 123 are provided with through holes arranged corresponding to the bolt holes. The longitudinal guide plates 123 are fixed to the guide key 121 by the bolts passing through the through holes and the bolt holes in sequence, and the longitudinal guide plates 123 are arranged above the door lock plate 110.

[0039] It should be noted that the longitudinal guide plate 123 is used to further play an auxiliary guiding and limiting role for the door lock plate 110. It is arranged above the door lock plate 110. Since it limits the displacement of the door lock plate 110 in the vertical height direction (i.e., the thickness direction), the longitudinal guide plate 123 can be fixed above the door lock plate 110 by bolt connection. For the convenience of connection, a through hole corresponding to the bolt hole is opened on the longitudinal guide plate 123. The corresponding setting here means that the through hole has the same aperture as the bolt hole and is coaxially arranged.

[0040] As a preferred embodiment of the utility model, each of the door lock structures 10 further includes a lining plate 140 and an adjusting bolt 150, and one end of the door lock plate 110 close to the inner side of the rolling mill arch 20 is recessed to form a notch groove 112 matched with the lining plate 140, and a threaded hole is opened, wherein the lining plate 140 is arranged at the notch groove 112, and the adjusting bolt 150 is telescopically adjustable in the threaded hole, and the bottom end of the adjusting bolt 150 extends out of the threaded hole and is fixedly connected to the lining plate 140.

[0041] It is worth noting that the lining plate 140 and the adjusting bolt 150 are used to adjust the locking plate 110 in time when the locking plate 110 cannot be opened; wherein, the locking plate 110 is recessed at one end close to the inner side of the rolling mill arch 20 to form a notch groove 112, and a threaded hole is opened; the notch groove 112 is used for the lining plate 140 to be set and installed, and it is matched with the lining plate 140. Here, the matching setting means that the size (length, width and thickness) of the lining plate 140 is consistent with the notch groove 112 to ensure that the locking plate 110 is a complete rectangular block; since the bottom end of the adjusting bolt 150 is aligned with the lining plate 14 0 is fixed, so the threaded hole is used for the adjusting bolt 150 to be screwed and adjusted to adjust the gap between the liner 140 and the working roll bearing seat 210; specifically, when it is necessary to change the roll, but the working roll bearing seat 210 and the liner 140 are tightly held against each other, the large friction may affect the retraction (opening) of the lock door plate 110. At this time, the adjusting bolt 150 can be screwed back to drive the liner 140 to move back toward the lock door plate 110, thereby increasing the gap between the liner 140 and the working roll bearing seat 210. At this time, the lock door plate 110 can be smoothly retracted and the roll can be changed in time to further improve the roll changing efficiency.

[0042] As a preferred embodiment of the present invention, the door lock plate 110 is provided with stop plates 113 protruding outward along both sides of the horizontal direction, and the side walls of the longitudinal guide plate 123 are fitted with the stop plates 113 .

[0043] It is worth noting that when the side wall of the longitudinal guide plate 123 is arranged in close contact with the stop plate 113, auxiliary guidance can be further provided for the door lock plate 110 so that it can move along the side wall of the longitudinal guide plate 123 under the close contact limit of the longitudinal guide plate 123.

[0044] Furthermore, the driving mechanism 130 includes a locking cylinder 131 and a piston rod 132 extending longitudinally, the locking cylinder 131 is connected to the frame 220 of the rolling mill arch 20, and is spaced apart at one end of the locking door plate 110 away from the working roll bearing seat 210, one end of the piston rod 132 is fixed in the locking cylinder 131, and the other end of the piston rod 132 is fixedly connected to the locking door plate 110.

[0045] It should be noted that the locking cylinder 131 drives the piston rod 132 to move telescopically in the longitudinal direction through hydraulic expansion and contraction, thereby driving the door lock plate 110 to move telescopically back and forth in the longitudinal direction to achieve door opening / closing.

[0046] Furthermore, the number of the guide units is two, and the two guide units are arranged at intervals in the longitudinal direction.

[0047] It should be understood that the number of the guide units can be determined according to the longitudinal length of the door lock plate 110. In a preferred embodiment, the number of the guide units is two.

[0048] Furthermore, the locking cylinder 131 is detachably disposed on the frame 220 of the rolling mill arch 20 .

[0049] It should be noted that the detachable connection can facilitate the later maintenance and replacement of the locking cylinder 131, and is easy to disassemble and assemble.

[0050] Furthermore, the width of the lining plate 140 is 60 mm to 70 mm.

[0051] It should be noted that the width of the lining plate 140 can be set according to the distance that the door locking plate 110 extends out of the frame 220 of the rolling mill arch 20, so as to facilitate adjustment by the adjusting bolt 150. If the width is too large, it may affect the opening / closing of the door locking plate 110. Preferably, the width of the lining plate 140 can be set to 65 mm.

[0052] The present application also provides a rolling mill arch 20, including a working roll bearing seat 210 and a frame 220 arranged in a "door" shape, wherein the working roll bearing seat 210 is connected to the frame 220, and also includes the hot-rolled plate working roll locking door plate 110 device as described above, wherein the two locking door structures 10 of the hot-rolled plate working roll locking door plate 110 device are arranged opposite to each other on the frame 220 in the transverse direction, and are telescopically arranged toward the working roll bearing seat 210.

[0053] It can be understood that the frame 220 of the rolling mill arch 20 is in the shape of a "door", so that the two locking door structures 10 are respectively arranged on both sides of the frame 220, and the working roll bearing seat 210 is arranged in the middle of the frame 220. When the two locking door structures 10 move in opposite directions to each other, the door is closed, that is, it is used to limit the axial movement of the working roll; when the two locking door structures 10 move in the opposite direction, the door is opened, which can facilitate the roll changing process.

[0054] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A hot-rolled plate working roll locking door plate device, characterized in that: It comprises two locking door structures for being arranged on the rolling mill arch, the two locking door structures are arranged opposite to each other along the width direction of the rolling mill arch, and are respectively located on the frames on both sides of the rolling mill arch; wherein, Each of the door locking structures includes a door locking plate, a guide assembly and a driving mechanism. The guide assembly and the driving mechanism are both connected to the rolling mill arch. The door locking plate is provided with a longitudinal guide groove matching the guide assembly. The guide assembly is arranged in the longitudinal guide groove. The driving end of the driving mechanism is fixedly connected to the door locking plate so that the door locking plate can be movably arranged on the rolling mill arch along the longitudinal direction.

2. The hot-rolled plate working roll locking door plate device according to claim 1, characterized in that: The guide assembly includes a plurality of guide units spaced apart in the longitudinal direction, each of the guide units includes two guide keys arranged opposite to each other in the transverse direction, the guide keys are arranged in the longitudinal guide grooves, each of the guide keys is provided with a bolt hole, and the frame of the rolling mill arch is provided with connecting holes corresponding to the bolt holes, and the guide keys are fixed to the rolling mill arch by passing through the bolt holes and the connecting holes in sequence with fixing bolts.

3. The hot-rolled plate working roll locking door plate device according to claim 2, characterized in that: The guide assembly also includes two longitudinal guide plates arranged opposite to each other in the transverse direction, and the longitudinal guide plates are provided with through holes arranged corresponding to the bolt holes. The longitudinal guide plates are fixed to the guide keys by the bolts passing through the through holes and the bolt holes in sequence, and the longitudinal guide plates are arranged above the door lock plate.

4. The hot-rolled plate working roll locking door plate device according to claim 1, characterized in that: Each of the locking door structures also includes a lining plate and an adjusting bolt. The locking door plate is recessed at one end close to the inner side of the rolling mill arch to form a notch groove matching the lining plate, and is provided with a threaded hole, wherein the lining plate is arranged at the notch groove, and the adjusting bolt is telescopically adjustable in the threaded hole, and the bottom end of the adjusting bolt extends out of the threaded hole and is fixedly connected to the lining plate.

5. The hot-rolled plate working roll locking door plate device according to claim 3, characterized in that: The door lock plate is provided with stop plates protruding outward along both sides of the horizontal direction, and the side walls of the longitudinal guide plate are arranged in close contact with the stop plates.

6. The hot-rolled plate working roll locking door plate device according to claim 4, characterized in that: The driving mechanism includes a locking cylinder and a piston rod extending longitudinally. The locking cylinder is connected to the frame of the rolling mill arch and is spaced apart at one end of the locking door plate away from the working roll bearing seat. One end of the piston rod is fixed in the locking cylinder, and the other end of the piston rod is fixedly connected to the locking door plate.

7. The hot-rolled plate working roll locking door plate device according to claim 2, characterized in that: The number of the guide units is two, and the two guide units are arranged at intervals in the longitudinal direction.

8. The hot-rolled plate working roll locking door plate device according to claim 6, characterized in that: The locking cylinder is detachably arranged on the frame of the rolling mill arch.

9. The hot-rolled plate working roll locking door plate device according to claim 4, characterized in that: The width of the lining plate is 60 mm to 70 mm.

10. A rolling mill arch, comprising a working roll bearing seat and a frame arranged in a "door" shape, wherein the working roll bearing seat is connected to the frame, characterized in that: It also includes the hot-rolled plate working roll locking door plate device as described in any one of claims 1 to 9, wherein the two locking door structures of the hot-rolled plate working roll locking door plate device are arranged on the frame opposite to each other in the transverse direction and are telescopically arranged toward the working roll bearing seat.

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