Vertical rolling mill screw-down balancing device and vertical rolling mill

Abstract

The invention relates to the technical field of vertical rolling mills, and provides a vertical rolling mill screw-down balance device and a vertical rolling mill.The vertical rolling mill screw-down balance device comprises an outer frame, an inner frame, a driving cylinder and a balance cylinder, the extending end of the driving cylinder is used for abutting against the inner frame, and a cylinder body of the driving cylinder is used for being connected to a rack; the extending end of the balance cylinder is connected to the outer frame, a cylinder body of the balance cylinder is used for being connected to a rack, sliding holes are formed in the two opposite ends of the outer frame respectively, bosses are arranged at the two opposite ends of the inner frame respectively, the bosses are connected to the sliding holes in a sliding mode, and the inner frame is used for being connected to the rack in a hanging and sliding mode. An inserting strip structure is vertically arranged at the end, away from the balance cylinder, of the outer frame, an inserting groove matched with the inserting strip structure is formed in the bearing seat, and the inserting strip structure is used for being inserted into the inserting groove. And if parts are seriously abraded, only the outer frame or the outer frame can be independently replaced, and the whole device does not need to be replaced together, so that the cost is saved.

Description

Technical Field

[0001] The invention relates to the technical field of vertical roller mills, and in particular to a vertical roller mill press-down balancing device and the vertical roller mill. Background Art

[0002] Vertical roller mill is a type of rolling mill with vertical rollers. It is mainly used to roll the side of slabs or strips, and can accurately control the width, improve the quality of the slab edges, and reduce defects such as sickle bend. At the same time, it can perform a certain degree of lateral compression on the metal during the rolling process. It plays an important role in the plate and strip rolling production line, which is conducive to improving the stability of the subsequent rolling process and product quality. Among them, the rollers are installed on the bearing seat, and the bearing seat can be driven to move left and right relative to the frame through the pressing device, thereby driving the rollers to move relative to the slab or strip, and performing lateral compression rolling on the side of the slab or strip.

[0003] In the prior art, the hold-down device generally drives the balance beam to move through a hydraulic cylinder. The balance beam is provided with a hook-like structure connected to the bearing seat, thereby driving the bearing seat to move. The balance beam is generally an integrated frame structure. During use, the hook structure or other components on the balance beam are prone to wear. If the production quality is affected, the balance beam needs to be replaced as a whole, resulting in a waste of costs. At the same time, maintenance and repair are not convenient, which affects production efficiency and quality. Summary of the invention

[0004] The technical problem to be solved by the present invention is: how to improve the efficiency of maintenance and repair of a vertical roller mill and reduce the cost.

[0005] The present invention provides a vertical roller mill pressing down balancing device, which is used for the vertical roller mill. The vertical roller mill comprises a frame and a bearing seat. The vertical roller mill pressing down balancing device comprises an outer frame, an inner frame, a driving cylinder and a balancing cylinder. The protruding end of the driving cylinder is used to abut against the inner frame, the cylinder body of the driving cylinder is used to be connected to the frame, the protruding end of the balancing cylinder is connected to the outer frame, the cylinder body of the balancing cylinder is used to be connected to the frame, the opposite ends of the outer frame are respectively provided with sliding holes, the opposite ends of the inner frame are respectively provided with bosses, the bosses are slidably connected to the sliding holes, the inner frame is used to be suspended and slidably connected to the frame, the end of the outer frame facing away from the balancing cylinder is vertically provided with an insert structure, the bearing seat is provided with a slot matched with the insert structure, and the insert structure is used to be inserted in the slot.

[0006] Optionally, the outer frame includes side panels and a connecting beam, the two side panels are arranged opposite to each other and are respectively connected to the two ends of the connecting beam, the protruding end of the balancing cylinder is connected to the middle part of the connecting beam, the sliding hole is opened in the side panel, and the insert structure is arranged on the inner side of the side panel.

[0007] Optionally, a first slide plate is provided on the outer side of the side plate, and the first slide plate is used for being slidably connected to the frame.

[0008] Optionally, second slide plates are respectively provided at opposite ends of the inner frame, and the second slide plates are slidably connected to the inner sides of the side plates.

[0009] Optionally, the outer frame further includes a connecting pin, and both ends of the connecting beam are hinged to the middle parts of the two side panels through the connecting pins.

[0010] Optionally, a third slide plate is connected to the upper end of the boss, a fourth slide plate is connected to the upper inner wall of the sliding hole, and the third slide plate and the fourth slide plate are slidably connected.

[0011] Optionally, the vertical roller mill down-balancing device also includes a baffle, which is connected to the boss, the boss is provided with a first step structure, the hole wall of the sliding hole is provided with a second step structure, and the baffle is overlapped with the first step structure and the second step structure respectively.

[0012] Optionally, the vertical roller mill down-balancing device also includes a cylinder head sleeve adapted to the protruding end of the driving cylinder, the inner frame is provided with a connecting hole adapted to the cylinder head sleeve, the cylinder head sleeve is connected to the connecting hole, and the protruding end of the driving cylinder is used to abut against the cylinder head sleeve.

[0013] Optionally, load-bearing wheels and guide wheels are respectively provided at opposite ends of the inner frame, and the load-bearing wheels and the guide wheels are respectively used for rolling connection to the frame.

[0014] Compared with the prior art, the vertical roller mill press-down balancing device provided by the present invention has the following technical effects:

[0015] The vertical roller mill pressing balancing device provided by the present invention is applied to the vertical roller mill, by arranging an inner frame and an outer frame, and respectively arranging bosses and sliding holes at opposite ends of the two, the bosses are slidably connected in the sliding holes, so that the inner frame can slide in the outer frame through the cooperation of the bosses and the sliding holes, and by arranging a driving cylinder and a balancing cylinder, the driving cylinder is fixed on the frame of the vertical roller mill, and can abut against the inner frame through its protruding end and push the inner frame to move, and can drive the outer frame to move through the boss, and at the same time, the balancing cylinder is connected to the outer frame, and the outer frame can be pulled back through the back pressure of the balancing cylinder, and, by vertically arranging an insert structure at one end of the outer frame away from the balancing cylinder, and by arranging a matching slot on the bearing seat of the vertical roller mill, when in use, the insert structure can be inserted in the slot, and the bearing seat can be driven to move left and right through the outer frame. In specific application, the driving cylinder pushes the inner frame toward the slab or strip to be processed The material moves, and then the outer frame is driven to move through the boss and the sliding hole, so that the bearing seat is driven to move through the insert structure of the outer frame, or directly pushed by the inner frame and the bearing seat. The roller installed on the bearing seat can compress and roll the side of the processed profile. At the same time, the balancing cylinder can pull the outer frame back with back pressure to ensure the overall balance and prevent the driving cylinder from being too extended and compressed, so as to ensure the rolling quality. During maintenance and repair, the vertically arranged insert structure is plug-in-matched with the slot of the bearing seat. It is only necessary to retract the driving cylinder and release the connection between the balancing cylinder and the outer frame or the frame. The inner frame is hoisted to the frame, which is convenient for hoisting the whole through the hoisting equipment. The outer frame and the inner frame are slidably connected, which is easy to disassemble, thereby improving the efficiency of maintenance and repair. At the same time, if the parts are severely worn, only the outer frame or the outer frame can be replaced separately, and the whole device does not need to be replaced, thereby saving costs.

[0016] In addition, the present invention also provides a vertical roller mill, including a frame, a bearing seat and the vertical roller mill press-down balancing device.

[0017] Compared with the prior art, the vertical roller mill provided by the present invention is provided with a frame, a bearing seat and the vertical roller mill pressing balance device. The technical effect thereof is substantially the same as the technical effect of the vertical roller mill pressing balance device, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the vertical roller mill press-down balancing device according to an embodiment of the present invention;

[0019] Figure 2 It is a schematic diagram of the explosion structure of the vertical roller mill press-down balancing device according to an embodiment of the present invention;

[0020] Figure 3 It is a schematic diagram of the three-dimensional structure of the internal frame and the driving cylinder in an embodiment of the present invention;

[0021] Figure 4 It is a schematic diagram of the three-dimensional structure of the outer frame and the balance cylinder of an embodiment of the present invention;

[0022] Figure 5 It is a partial three-dimensional structural schematic diagram of a vertical roller mill according to an embodiment of the present invention;

[0023] Figure 6 It is a schematic diagram of the front view structure of the vertical roller mill according to an embodiment of the present invention;

[0024] Figure 7 It is a schematic diagram of the top view of the vertical roller mill according to an embodiment of the present invention;

[0025] Figure 8 It is a schematic diagram of the top view of the structure of the vertical roller mill hold-down balancing device and the bearing seat according to an embodiment of the present invention.

[0026] Description of reference numerals:

[0027] 10-outer frame, 11-sliding hole, 12-insertion strip structure, 13-side plate, 14-connecting beam, 15-first slide plate, 16-connecting pin, 17-fourth slide plate, 18-second step structure, 20-inner frame, 21-boss, 22-second slide plate, 23-third slide plate, 24-first step structure, 25-load-bearing wheel, 26-guide wheel, 27-lifting ear, 30-driving cylinder, 40-balancing cylinder, 50-cylinder head cover, 61-first baffle plate, 62-second baffle plate, 70-connecting seat, 01-frame, 02-bearing seat, 03-slot, 04-roller. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0029] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein.

[0030] In the description of the present invention, the directions or positional relationships indicated by "upper", "lower", "left", "right", "top", "bottom", "front", "rear", "inside" and "outside" are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present invention. At the same time, a coordinate system XYZ is set herein, wherein the positive direction of the X-axis represents the right direction, the reverse direction of the X-axis represents the left direction, the positive direction of the Y-axis represents the front direction, the reverse direction of the Y-axis represents the rear direction, the positive direction of the Z-axis represents the top, and the reverse direction of the Z-axis represents the bottom.

[0031] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] In the description of this specification, the description with reference to the terms "embodiment", "one embodiment" and "one implementation" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or implementation are included in at least one embodiment or implementation of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or implementation. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or implementations in a suitable manner.

[0033] To solve the above technical problems, Figures 1 to 8As shown, an embodiment of the present invention provides a vertical roller mill pressing balancing device, which is used for the vertical roller mill. The vertical roller mill includes a frame 01 and a bearing seat 02. The vertical roller mill pressing balancing device includes an outer frame 10, an inner frame 20, a driving cylinder 30 and a balancing cylinder 40. The protruding end of the driving cylinder 30 is used to abut against the inner frame 20, and the cylinder body of the driving cylinder 30 is used to be connected to the frame 01. The protruding end of the balancing cylinder 40 is connected to the outer frame 10, and the cylinder body of the balancing cylinder 40 is used to be connected to the inner frame 20. The frame 01, the opposite ends of the outer frame 10 are respectively provided with sliding holes 11, the opposite ends of the inner frame 20 are respectively provided with bosses 21, the bosses 21 are slidably connected to the sliding holes 11, the inner frame 20 is used for hanging and slidably connected to the frame 01, the end of the outer frame 10 away from the balance cylinder 40 is vertically provided with an insertion strip structure 12, the bearing seat 02 is provided with a slot 03 adapted to the insertion strip structure 12, and the insertion strip structure 12 is used to be inserted in the slot 03.

[0034] It should be noted that the vertical roller mill pressure balance device is applied to the vertical roller mill. The vertical roller mill provided in this embodiment is as follows: Figures 5 to 7 As shown, it is generally a left-right symmetrical structure, that is, in the X-axis direction of the coordinate system, the vertical roller mill pressing down balancing device is arranged on the left and right, the middle position of the frame 01 is the processing position of the slab or strip to be processed, and the left and right sides are respectively provided with the bearing seat 02 driving the roller 04 to extrude and roll the profile in the middle to improve the side rolling quality of the profile, and the driving cylinder 30 and the balancing cylinder 40 are generally hydraulic cylinders, and a group of vertical roller mill pressing down balancing devices is equipped with two driving cylinders, which are distributed up and down, that is, arranged at intervals in the Z-axis direction of the coordinate system, which can stably push the bearing seat, and then more stably drive the roller 04 to roll the side of the profile. When in use, the driving cylinder 30 extends toward the middle position of the frame 01, that is, the driving cylinders 30 of the vertical roller mill pressing down balancing device on the left and right sides of the X-axis direction extend at the same time to push the inner frame 20, and the inner frame 20 can abut against the side slide of the bearing seat 02, thereby pushing the bearing seat 02 to drive the roller 04 to move, and at the same time, the balancing cylinder 40 back pressure, that is, pulls the outer frame 10 in the opposite direction, as shown in FIG. Figure 8 / As shown, the insert structure 12 of the outer frame 10 is vertically inserted into the slot 03 of the bearing seat 02, and then the balance cylinder 40 pulls the bearing seat 02 in the opposite direction to make it in a balanced state, preventing the drive cylinder 30 from pushing the bearing seat 02 and the roller 04 too much, affecting the operation accuracy, and facilitating the improvement of the operation quality. Also, the roll change is sometimes required during the use of the vertical roller mill. When the vertical roller mill provided in this embodiment changes the roll, that is, there is no profile at the middle opening position of the frame 01, the balance cylinder 40 can be extended at this time, the drive cylinder 40 does not move, and the balance cylinder 40 pushes the outer frame 10 and drives the inner frame 20 and the bearing seat 02 to move toward the middle position of the frame 01 in a large range, so that the roll change operation can be carried out smoothly, the operation is convenient and fast, and the operation efficiency is improved.

[0035] Specifically, the left and right sides of the frame 01 may be provided with installation cavities for the press-down balancing device of the vertical roller mill, that is, the inner frame 20 and the outer frame 10 can move left and right therein, and the frame 01 may be provided with structures such as slide rails or slideways to suspend and slide the inner frame 20. At the same time, the boss 21 of the inner frame 20 is arranged in the sliding hole 11 of the outer frame 10, and the upper end of the boss 21 is slidably connected to the upper end of the sliding hole 11, and the outer frame 10 is supported by the boss 21, thereby ensuring the fixation of the upper and lower positions of the inner frame 20 and the outer frame 10, and the inner frame 20 and the outer frame 10 can be fixed in the front and rear directions through the inner wall of the installation cavity of the frame 01, the slide rails or slideways and other structures, that is, the fixation in the Y-axis direction of the coordinate system in the accompanying drawing, thereby ensuring that the press-down balancing device of the vertical roller mill is more stable and reliable when in use, and further improving the operation accuracy. At the same time, the size of the sliding hole 11 is larger than that of the boss 21. On the one hand, an operating gap can be left between the inner frame 20 and the outer frame 10 during the rolling and roll changing process to meet the operational requirements. On the other hand, during the maintenance process, the inner frame 20 and the outer frame 10 can be more easily disassembled, thereby improving the maintenance efficiency.

[0036] In the present embodiment, the vertical roller mill pressing balance device provided in the present embodiment is applied to the vertical roller mill, by setting an inner frame 20 and an outer frame 10, and respectively setting a boss 21 and a sliding hole 11 at opposite ends of the two, and slidingly connecting the boss 21 in the sliding hole 11, so that the inner frame 20 can slide in the outer frame 10 through the cooperation of the boss 21 and the sliding hole 11, and by setting a driving cylinder 30 and a balancing cylinder 40, the driving cylinder 30 is fixed to the frame 01 of the vertical roller mill, for example, connected to the frame 01 by bolts, and can abut against the inner frame 20 through its protruding end and push the inner frame 20 to move, and can drive the outer frame 10 to move through the boss 21, and at the same time, the balancing cylinder 30 is connected to the outer frame 10, and the outer frame 10 can be pulled back through the back pressure of the balancing cylinder 40, and the insert structure 12 is vertically arranged at the end of the outer frame 10 away from the balancing cylinder 40, that is, as shown in Figure 5In the Z-axis direction, a corresponding slot 03 is set in the bearing seat 02 of the vertical roller mill. When in use, the insert structure 12 can be inserted in the slot 03, and the bearing seat 02 can be driven to move left and right through the outer frame 10. In specific applications, the driving cylinder 30 pushes the inner frame 20 to move toward the slab or strip to be processed, and then drives the outer frame 10 to move through the boss 21 and the sliding hole 11, so as to drive the bearing seat 02 to move through the insert structure 12 of the outer frame 10, or directly push the inner frame 20 against the bearing seat 02, and the roller 04 installed on the bearing seat 02 can compress and roll the side of the profile to be processed. At the same time, the balancing cylinder 40 can pull the outer The frame 10 is used to ensure the overall balance, prevent the driving cylinder 30 from being too extended and compressed, and ensure the rolling quality. During maintenance and repair, the vertically arranged plug-in structure 12 is plugged into the slot 03 of the bearing seat 02. It is only necessary to retract the driving cylinder 30 and release the connection between the balance cylinder 40 and the outer frame 10 or the frame 01. The inner frame 20 is suspended on the frame 01, which is convenient for lifting the whole out through the lifting equipment. The outer frame 10 and the inner frame 20 are slidably connected, which is convenient for disassembly, thereby improving the efficiency of maintenance and repair. At the same time, if the parts are severely worn, only the outer frame 10 or the outer frame 20 can be replaced separately, and there is no need to replace the entire device together, thereby saving costs.

[0037] Alternatively, if Figure 2 and Figure 4 As shown, the outer frame 10 includes a side plate 13 and a connecting beam 14. The two side plates 13 are arranged opposite to each other and are respectively connected to the two ends of the connecting beam 14. The protruding end of the balancing cylinder 40 is connected to the middle part of the connecting beam 14. The sliding hole 11 is opened in the side plate 13, and the insert structure 12 is arranged on the inner side of the side plate 13.

[0038] Specifically, the two side panels 13 are symmetrically arranged. Figure 8 As shown, the two insert structures 12 are symmetrically inserted into two corresponding symmetrically arranged slots 03 of the bearing seat 02 in the Y-axis direction of the coordinate system in the figure, further ensuring stability and reliability during operation.

[0039] In this embodiment, by setting the outer frame 10 as a structural form in which two side panels 13 are arranged opposite to each other and connected by a connecting beam 14, and by connecting the balancing cylinder 40 to the middle part of the connecting beam 14, the two side panels 13 can be driven to move more smoothly by the balancing cylinder 40. At the same time, through the cooperation between the boss 21 and the sliding hole 11, the inner frame 20 can more stably support the outer frame 10, and the two insert structures 12 are respectively arranged on the inner sides of the two side panels 13, which can more stably and reliably pull or drive the bearing seat 02 to move, making the overall structure more stable and reliable.

[0040] Alternatively, if Figure 1, Figure 2 and Figure 4 As shown, a first slide plate 15 is provided on the outer side of the side plate 13 , and the first slide plate 15 is used for sliding connection with the frame 01 .

[0041] Specifically, the outer sides of the two side panels 13 are each provided with a first slide plate 15 , which can be connected by connecting members such as bolts, and two first slide plates 15 are respectively provided on the outer side of each side panel 13 , so as to further improve the stability of operation.

[0042] In this embodiment, by providing a first slide plate 15 on the outer side of the side panel 13, when the device is in use, the first slide plate 15 can be slidably connected to the inner wall of the installation cavity of the rack 01 on which the device is installed, that is, while stably fixing the running track of the device, it does not hinder the movement of the device in the rack 01, thereby improving the running smoothness. Moreover, during maintenance, generally, only the first slide plate 15, which is a component that is easily worn, needs to be replaced, thereby improving the maintenance efficiency and saving costs.

[0043] Alternatively, if Figures 1 to 3 As shown, second slide plates 22 are respectively provided at opposite ends of the inner frame 20 , and the second slide plates 22 are slidably connected to the inner sides of the side plates 13 .

[0044] Specifically, the opposite ends of the inner frame 20 are the ends that are in sliding contact with the inner walls of the side panels 13 of the outer frame 10, and the number and installation positions of the second slide plates 22 are the same as those of the first slide plates 15, and can be installed according to actual needs to ensure structural stability and smooth operation.

[0045] In this embodiment, second slide plates 22 are respectively provided at opposite ends of the inner frame 20 and are slidably connected to the inner sides of the side plates 13 of the outer frame 10. On the one hand, the stability of the overall structure is further improved, and gaps and shaking between the inner frame 20 and the outer frame 10 are prevented without hindering relative sliding between the two. On the other hand, during maintenance, only the second slide plate 22 with relatively more wear and tear needs to be replaced or repaired, which saves maintenance costs and improves maintenance efficiency.

[0046] Alternatively, if Figures 1 to 4 As shown, the outer frame 10 further includes a connecting pin 16 , and both ends of the connecting beam 14 are hinged to the middle portions of the two side panels 13 through the connecting pin 16 .

[0047] Specifically, the connecting pin 16 can be a pin shaft structure and can be configured with a pull ring, so that the connecting pin 16 can be easily removed, and the sliding hole 11 can be specifically set as a "convex" shaped hole, that is, leaving a space for cooperating with the boss 21, and a certain amount of hole expansion can be performed, and then during maintenance and repair, when the outer frame 10 and the inner frame 20 are disassembled and separated, it is more convenient for the boss 21 to detach from the sliding hole 11, thereby further improving the disassembly efficiency.

[0048] In this embodiment, the two ends of the connecting beam 14 are hinged to the middle parts of the two side panels 13 through the connecting pins 16. On the one hand, the connecting beam 14 is connected to the middle parts of the side panels 13, so when the outer frame 10 is driven to move by the balancing cylinder 40, it is more stable and reliable, and the movement trajectory is more controllable. On the other hand, the hinged connection method facilitates the opening and disassembly of the two side panels 13 relative to the inner frame 20, and the contact connection relationship is convenient for maintenance and repair operations. The connection relationship between the side panel 13 and the connecting beam 14 can be released by removing the connecting pin 16, that is, the connection relationship with the balancing cylinder 40 is released, which facilitates the outer frame 10 and the inner frame 20 to be lifted out from the frame 01, thereby improving the efficiency of maintenance and repair.

[0049] Alternatively, if Figures 1 to 4 As shown, the upper end of the boss 21 is connected to a third slide plate 23 , the upper inner wall of the sliding hole 11 is connected to a fourth slide plate 17 , and the third slide plate 23 and the fourth slide plate 17 are slidably connected.

[0050] Specifically, the third slide plate 23 and the fourth slide plate 17 can be installed on the upper end of the boss 21 and the upper inner wall of the sliding hole 11 by opening countersunk holes and using connecting parts such as bolts or screws, and the third slide plate 23 can be buckled on the upper end of the boss 21, that is, the third slide plate 23 can not only protect the upper end surface of the boss 21, but also provide certain protection for the two ends of the boss 21 in the movement direction, further improving its service life and reducing the frequency of component replacement.

[0051] In this embodiment, a third slide plate 23 is provided at the upper end of the boss 21, and a fourth slide plate 17 is provided on the upper inner wall of the sliding hole 11, that is, two slide plates are provided on the bearing contact surface of the boss 21 that bears the outer frame 10 to abut against and slide against each other, thereby improving the overall operation smoothness and durability. When wear occurs, only the third slide plate 23 and the fourth slide plate 17 need to be replaced, thus avoiding the replacement of large components and saving maintenance costs.

[0052] Alternatively, if Figures 1 to 4As shown, the vertical roller mill down-balancing device also includes a baffle, which is connected to the boss 21, the boss 21 is provided with a first step structure 24, and the hole wall of the sliding hole 11 is provided with a second step structure 18, and the baffle is overlapped with the first step structure 24 and the second step structure 18 respectively.

[0053] Specifically, the baffle includes a first baffle 61 and a second baffle 62. The first baffle 61 is located at the top, that is, it is blocked at the third slide plate 23 and the fourth slide plate 17, and its size is wider than the second baffle 62. At the same time, the first baffle 61 and the second baffle 62 can be connected to the boss 21 by connecting parts such as bolts. The boss 21 can be provided with corresponding connecting holes, and the corresponding hole walls of the boss 21 and the sliding hole 11 are respectively provided with step structures adapted to the baffle, so that the structure is more stable and reliable.

[0054] In this embodiment, by setting a baffle and connecting it to the boss 21, and by respectively setting a first step structure 24 and a second step structure 18 at the boss 21 and the hole wall of the sliding hole 11, the baffle is overlapped at the two step structures. On the one hand, the baffle can further limit the shaking other than the sliding movement between the inner frame 20 and the outer frame 10, thereby improving the structural stability. On the other hand, the step structure can reduce the protrusion of the baffle, prevent the baffle from interfering with the frame 01, and make the operation smoother.

[0055] Alternatively, if Figures 1 to 5 As shown, the vertical roller mill down-balancing device also includes a cylinder head sleeve 50 adapted to the protruding end of the driving cylinder 30, the inner frame 20 is provided with a connecting hole adapted to the cylinder head sleeve 50, the cylinder head sleeve 50 is connected to the connecting hole, and the protruding end of the driving cylinder 30 is used to abut against the cylinder head sleeve 50.

[0056] Specifically, one end of the cylinder head sleeve 50 is a sealing structure and is provided with a flange ring edge, which can be connected to the edge of the connecting hole of the inner frame 20 by bolts. The protruding end of the driving cylinder 30 is generally a cylindrical structure. Correspondingly, the cylinder head sleeve 50 is a cylindrical structure, and its size is adapted to the protruding end of the driving cylinder 30, so that the overall coordinated operation is more stable and reliable.

[0057] In this embodiment, a connecting hole is opened in the inner frame 20 and a cylinder head sleeve 50 adapted to the protruding end of the driving cylinder 30 is connected. When in use, the protruding end of the driving cylinder 30 can be extended into and abutted against the cylinder head sleeve 50, so that the action of pushing the driving cylinder 30 to the inner frame 20 is more stable and reliable, and the operation is smoother.

[0058] Alternatively, if Figures 1 to 5As shown, load-bearing wheels 25 and guide wheels 26 are respectively provided at opposite ends of the inner frame 20, and the load-bearing wheels 25 and the guide wheels 26 are respectively used for rolling connection to the frame 01.

[0059] Specifically, the diameter of the load-bearing wheel 25 is greater than the diameter of the guide wheel 26, that is, the load-bearing wheel 25 mainly plays a load-bearing role, carrying the weight of the inner frame 20 and the outer frame 10, and the guide wheel 26 mainly plays a guiding role, and two can be set on one side, so that the guiding is more stable and reliable. In addition, the upper end of the inner frame 20 can be provided with a lifting lug 27, which is convenient for lifting the inner frame 20 and the outer frame 10 out of the frame 01, for example, after connecting the two lifting lugs 27 set on both sides of the upper end by a crane, and retracting the drive cylinder 30 to release the connection relationship with the inner frame 20, and taking out the connecting pin 16, releasing the connection relationship between the side plate 13 and the connecting beam 14, or after disassembling and releasing the connection relationship between the balance cylinder 40 and the connecting beam 14, the inner frame 20 and the outer frame 10 can be lifted out of the frame 01 for maintenance and repair operations, which is convenient for operation and improves efficiency.

[0060] In this embodiment, load-bearing wheels 25 and guide wheels 26 are respectively provided at opposite ends of the inner frame 20 and are respectively connected to the frame 01 in a rolling manner. On the one hand, it is convenient to realize the overall hanging structure through the load-bearing wheels 25. On the other hand, both the guide wheels 26 and the load-bearing wheels 25 can roll on the frame 01, which is convenient for movement, smoother operation, and improved stability and reliability of the overall operation.

[0061] In addition, if Figures 5 to 8 As shown, another embodiment of the present invention provides a vertical roller mill, including a frame 01, a bearing seat 02 and the vertical roller mill press-down balancing device mentioned above.

[0062] In this embodiment, the vertical roller mill provided in this embodiment has substantially the same technical effect as the vertical roller mill pressure balancing device described above by setting up a frame 01, a bearing seat 02 and the vertical roller mill pressure balancing device described above, and will not be described in detail here.

[0063] Although the present invention is disclosed as above, the protection scope of the present invention is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications will fall within the protection scope of the present invention.

Claims

1. A vertical rolling mill press-down balancing device, used for a vertical rolling mill, the vertical rolling mill comprising a frame (01) and a bearing seat (02), characterized in that: The vertical roller mill down-pressing balancing device comprises an outer frame (10), an inner frame (20), a driving cylinder (30) and a balancing cylinder (40); the protruding end of the driving cylinder (30) is used to abut against the inner frame (20); the cylinder body of the driving cylinder (30) is used to be connected to the frame (01); the protruding end of the balancing cylinder (40) is connected to the outer frame (10); the cylinder body of the balancing cylinder (40) is used to be connected to the frame (01); the opposite ends of the outer frame (10) are respectively provided with sliding holes (1 1), bosses (21) are respectively provided at opposite ends of the inner frame (20), the bosses (21) are slidably connected to the sliding holes (11), the inner frame (20) is used for hanging and slidably connected to the frame (01), an insert structure (12) is vertically provided at one end of the outer frame (10) away from the balancing cylinder (40), a slot (03) adapted to the insert structure (12) is provided on the bearing seat (02), and the insert structure (12) is used for being inserted into the slot (03).

2. The vertical roller mill press-down balancing device according to claim 1, characterized in that: The outer frame (10) comprises a side plate (13) and a connecting beam (14); the two side plates (13) are arranged opposite to each other and are respectively connected to the two ends of the connecting beam (14); the protruding end of the balancing cylinder (40) is connected to the middle of the connecting beam (14); the sliding hole (11) is opened in the side plate (13); and the insert structure (12) is arranged on the inner side of the side plate (13).

3. The vertical roller mill press-down balancing device according to claim 2, characterized in that: A first slide plate (15) is provided on the outer side of the side plate (13), and the first slide plate (15) is used for being slidably connected to the frame (01).

4. The vertical roller mill press-down balancing device according to claim 2, characterized in that: Second slide plates (22) are respectively provided at opposite ends of the inner frame (20), and the second slide plates (22) are slidably connected to the inner sides of the side plates (13).

5. The vertical roller mill press-down balancing device according to claim 2, characterized in that: The outer frame (10) further comprises a connecting pin (16), and the two ends of the connecting beam (14) are respectively hinged to the middle parts of the two side plates (13) through the connecting pin (16).

6. The vertical roller mill press-down balancing device according to claim 1, characterized in that: The upper end of the boss (21) is connected to a third slide plate (23), the upper inner wall of the sliding hole (11) is connected to a fourth slide plate (17), and the third slide plate (23) and the fourth slide plate (17) are slidably connected.

7. The vertical roller mill press-down balancing device according to claim 1, characterized in that: The vertical roller mill down-balancing device also includes a baffle, which is connected to the boss (21), the boss (21) is provided with a first step structure (24), the hole wall of the sliding hole (11) is provided with a second step structure (18), and the baffle is overlapped with the first step structure (24) and the second step structure (18) respectively.

8. The vertical roller mill press-down balancing device according to claim 1, characterized in that: The vertical roller mill down-balancing device also includes a cylinder head sleeve (50) adapted to the protruding end of the driving cylinder (30), the inner frame (20) is provided with a connecting hole adapted to the cylinder head sleeve (50), the cylinder head sleeve (50) is connected to the connecting hole, and the protruding end of the driving cylinder (30) is used to abut against the cylinder head sleeve (50).

9. The vertical roller mill press-down balancing device according to claim 1, characterized in that: Load-bearing wheels (25) and guide wheels (26) are respectively arranged at opposite ends of the inner frame (20), and the load-bearing wheels (25) and the guide wheels (26) are respectively used for being connected to the frame (01) in a rolling manner.

10. A vertical rolling mill, characterized in that: It comprises a frame (01), a bearing seat (02) and a vertical roller mill down-balancing device as claimed in any one of claims 1 to 9.

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