Combined frame type vertical rolling mill stand and vertical rolling mill

Abstract

The invention provides a combined frame type vertical rolling mill stand and a vertical rolling mill, and relates to the technical field of rolling mill parts, the combined frame type vertical rolling mill stand comprises a transmission side fixing stand column, an operation side fixing stand column, an upper connecting beam, a middle connecting beam, a lower connecting beam and a pull rod, the transmission side fixing stand column and the operation side fixing stand column are fixedly connected through the upper connecting beam, the middle connecting beam and the lower connecting beam. The two sets of upper connecting beams, the two sets of middle connecting beams, the two sets of lower connecting beams and the two sets of pull rods are symmetrically distributed on the two sides of the transmission side fixing stand column and the two sides of the operation side fixing stand column, and the pull rods comprise the first pull rod and the second pull rod. And the corresponding upper connecting beam and middle connecting beam on each side are fixedly connected through the second pull rod. According to the invention, the processing difficulty is reduced, the production and transportation cost is reduced, and quick roller replacement can be realized.

Description

Technical Field

[0001] The invention relates to the technical field of rolling mill parts, and in particular to a combined frame type vertical roller rolling mill frame and a vertical roller rolling mill. Background Art

[0002] The rolling mill frame is an important component of the rolling mill. The rolling mill frame is used to install components such as rolls, roll bearings, roll balancing devices, and bear the full rolling force.

[0003] In the related art, the vertical roller mill frame is often composed of two frames, which has a long processing cycle and high production cost. In addition, the connecting shaft needs to be disassembled when replacing the rollers, which takes a long time for maintenance. Summary of the invention

[0004] The present invention aims to solve the problems of long processing cycle of the vertical roller rolling mill frame, high production cost and complicated operation of replacing the rollers.

[0005] In order to solve the above problems, in the first aspect, the present invention provides a combined frame type vertical roller mill frame, including a transmission side fixed column, an operating side fixed column, an upper connecting beam, an intermediate connecting beam, a lower connecting beam and a tie rod, wherein the transmission side fixed column and the operating side fixed column are respectively fixedly connected by the upper connecting beam, the intermediate connecting beam and the lower connecting beam, two groups of the upper connecting beam, the intermediate connecting beam, the lower connecting beam and the tie rod are symmetrically distributed on both sides of the transmission side fixed column and the operating side fixed column, and the tie rod includes a first tie rod and a second tie rod, and each side corresponds to The upper connecting beam and the middle connecting beam are fixedly connected by the second pull rod, the middle connecting beam and the lower connecting beam corresponding to each side are fixedly connected by the first pull rod, the transmission side fixed column and the operation side fixed column are respectively provided with AWC hydraulic cylinder mounting holes, balance cylinder mounting holes and main connecting shaft mounting holes from top to bottom, and the tops of the upper connecting beams on both sides are detachably mounted with guide pressure plates through detachable fixing parts, and sliding guide grooves are formed between the guide pressure plates and the upper connecting beams on each side, and the sliding guide grooves on both sides are used for sliding connection of the roller bearing seats.

[0006] Optionally, a plurality of the first pull rod and the second pull rod are provided on each side, and the first pull rod and the second pull rod are both telescopically arranged.

[0007] Optionally, the first pull rod on each side is arranged alternately between the middle connecting beam and the lower connecting beam in an inclined and vertical manner, and the main connecting shaft mounting hole is centrally arranged and close to the middle connecting beam or the lower connecting beam.

[0008] Optionally, the guide pressure plate includes a first guide portion and a second guide portion, the first guide portion is in contact with the top surface of the upper connecting beam, the second guide portion is fixed to the top of the first guide portion, the first guide portion, the second guide portion and the upper connecting beam form the sliding guide groove, and the detachable fixing part passes through the first guide portion and the second guide portion and then is connected to the upper connecting beam.

[0009] Optionally, the first guide portion is in a folding shape, and the folded first guide portion includes a fitting portion and a side portion that are fixedly connected, the fitting portion of the first guide portion is fitted with the upper connecting beam, the side portion of the first guide portion is fixedly connected to the second guide portion, and a reinforcing rib is further provided between the first guide portion and the second guide portion, and the detachable fixing part passes through the fitting portion and the second guide portion of the first guide portion.

[0010] Optionally, the detachable fixing part includes a positioning pin, a wedge hole, an inclined wedge and a washer, the bottom end of the positioning pin is fixedly connected to the upper connecting beam, the first guide portion and the second guide portion are integrally provided with a through hole that is gap-matched with the positioning pin, the top end of the positioning pin is exposed through the through hole and is sleeved with the washer, the positioning pin is provided with the wedge hole, the inclined wedge is inserted into the wedge hole and presses the washer against the surface of the second guide portion.

[0011] Optionally, a guide assembly is further provided between the upper connecting beam and the middle connecting beam, and the guide assembly includes an entry and exit guide plate, a corresponding lower guide roller and an upper guide plate, the upper guide plate is detachably provided between the upper connecting beams on both sides through the detachable fixing member, the lower guide roller is rotatably installed between the middle connecting beams on both sides, and the entry and exit guide plates are fixed to the upper connecting beams on both sides and are located on the relatively outer side of the upper guide plate.

[0012] Optionally, along the withdrawal direction of the AWC hydraulic cylinder on the AWC hydraulic cylinder mounting hole, side walls of the transmission side fixed column and the operation side fixed column are respectively installed with disassembly and assembly auxiliary brackets.

[0013] Optionally, the disassembly and assembly auxiliary bracket includes an arc-shaped portion and a mounting seat which are fixedly connected to each other, the mounting seat is used to be fixedly connected to the transmission side fixed column or the operation side fixed column, and the arc-shaped portion is used to lift the AWC hydraulic cylinder.

[0014] The combined frame type vertical roller mill frame of the present invention has the following beneficial effects: the overall frame of the rolling mill frame is formed by the transmission side fixed columns, the operating side fixed columns, the upper connecting beam, the middle connecting beam, and the lower connecting beam. The frame serves as an overall force-bearing frame during steel rolling. The upper connecting beam, the middle connecting beam, and the lower connecting beam serve as connecting beams of the rolling mill frame to achieve a tight connection between the transmission side fixed columns and the operating side fixed columns, thereby improving the strength and rigidity of the overall frame. Furthermore, the upper connecting beam and the middle connecting beam corresponding to each side are fixedly connected by the second tie rod, and the middle connecting beam and the lower connecting beam corresponding to each side are fixedly connected by the first tie rod. The first tie rod and the second tie rod can also be fixed by means of, for example, bolts or pins. During the rolling process, the rolling force applied to the rolling mill frame can be relatively uniform. The roller bearing seat is directly connected to the roller frame by the detachable fixing parts, and the detachable fixing parts are only required to remove the detachable fixing parts, so that the roller (and the roller bearing seat as a whole) can be directly lifted out or lifted in from the top of the upper connecting beam to realize quick roller replacement and reduce maintenance time.

[0015] In a second aspect, the present invention further provides a vertical roller mill, comprising any one of the above-mentioned combined frame type vertical roller mill frames.

[0016] The beneficial effects of the vertical roller mill provided by the present invention are the same as those of the combined frame type vertical roller mill frame, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The structure diagram of the rolling mill frame in the current related technology is shown;

[0018] Figure 2 A three-dimensional structural diagram of a combined frame type vertical roller mill frame in an embodiment of the present invention is shown;

[0019] Figure 3 Shows Figure 2 A local enlarged schematic diagram of the middle A;

[0020] Figure 4 It shows a front view of a combined frame type vertical roller mill frame in an embodiment of the present invention;

[0021] Figure 5 A side view of a combined frame type vertical roller mill frame in an embodiment of the present invention is shown;

[0022] Figure 6 A top view of a combined frame type vertical roller mill frame in an embodiment of the present invention is shown;

[0023] Figure 7 A three-dimensional structural diagram of a combined frame type vertical roller mill frame without a transmission side column in an embodiment of the present invention is shown;

[0024] Figure 8 Shows Figure 7 A partial enlarged schematic diagram of point B in the middle;

[0025] Fig. 9 A side view of a combined frame type vertical roller mill frame without a transmission side column in an embodiment of the present invention is shown;

[0026] Fig.10 A front view of an edger mill with a combined frame type edger mill stand according to an embodiment of the present invention is shown.

[0027] Description of reference numerals:

[0028] 1. Fixed column on the transmission side; 2. Fixed column on the operating side; 3. Upper connecting beam; 4. Middle connecting beam; 5. Lower connecting beam; 6. Pull rod; 61. First pull rod; 62. Second pull rod; 7. Guide pressure plate; 71. First guide part; 72. Second guide part; 8. Removable fixing piece; 81. Positioning pin; 82. Wedge hole; 83. Wedge; 84. Washer; 9. Inlet and outlet guide plate; 10. AWC hydraulic cylinder mounting hole; 11. Balance cylinder mounting hole; 12. Main connecting shaft mounting hole; 13. Disassembly and assembly auxiliary bracket; 131. Arc part; 132. Mounting seat; 14. Mounting window; 15. Connecting pin; 16. Upper crossbeam; 17. Lower crossbeam; 18. Positioning ring; 19. Washer; 20. Lower guide roller; 21. Upper guide plate; 22. Sliding guide groove. DETAILED DESCRIPTION

[0029] 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.

[0030] The Z axis in the accompanying drawings represents the vertical direction, that is, the up and down position, and the positive direction of the Z axis represents the top, and the reverse direction of the Z axis represents the bottom; the vertical direction is also the arrangement direction of the rollers, and the X axis in the accompanying drawings represents the horizontal direction, and is designated as the front and rear position, and the positive direction of the X axis represents the front side, and the reverse direction of the X axis represents the rear side; the horizontal direction is also the arrangement direction of the hydraulic cylinder or the connecting shaft, and the Y axis in the accompanying drawings represents the left and right positions, and the positive direction of the Y axis represents the left side, and the reverse direction of the Y axis represents the right side. It should also be noted that the aforementioned Z axis, Y axis, and X axis are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0031] 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.

[0032] See also Figure 1 In the related art, the vertical roller mill frame is composed of two frames, the upper crossbeam 16 and the lower crossbeam 17, which are fixed together by the positioning ring 18. The processing cycle is long and the production cost is high. When replacing the roller, the connecting shaft needs to be lifted away by a special lifting device before replacing the roller. In order to solve this technical problem, refer to Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 The embodiment of the present invention proposes a combined frame type vertical roller mill frame, including a transmission side fixed column 1, an operating side fixed column 2, an upper connecting beam 3, an intermediate connecting beam 4, a lower connecting beam 5 and a pull rod 6. The transmission side fixed column 1 and the operating side fixed column 2 are fixedly connected by the upper connecting beam 3, the intermediate connecting beam 4 and the lower connecting beam 5 respectively. Two groups of the upper connecting beam 3, the intermediate connecting beam 4, the lower connecting beam 5 and the pull rod 6 are symmetrically distributed on both sides of the transmission side fixed column 1 and the operating side fixed column 2. Therefore, the middle part between the two forms an installation window 14 for installing rollers (and other components such as hydraulic cylinders).

[0033] The pull rod 6 includes a first pull rod 61 and a second pull rod 62. The upper connecting beam 3 and the middle connecting beam 4 corresponding to each side are fixedly connected by the second pull rod 62. The middle connecting beam 4 and the lower connecting beam 5 corresponding to each side are fixedly connected by the first pull rod 61. The transmission side fixed column 1 and the operation side fixed column 2 are respectively provided with AWC hydraulic cylinder mounting holes 10, balance cylinder mounting holes 11 and main connecting shaft mounting holes 12 from top to bottom. The tops of the upper connecting beams 3 on both sides are detachably mounted with guide pressure plates 7 through detachable fixing parts 8. A sliding guide groove 22 is formed between the guide pressure plate 7 and the upper connecting beam 3 on each side, and the sliding guide grooves 22 on both sides are used for sliding connection of the roller bearing seat.

[0034] Specifically, the transmission side fixed column 1 and the operating side fixed column 2 are arranged in parallel. Before assembly in practice, the transmission side fixed column 1 and the operating side fixed column 2 are respectively fixed on the foundation of the factory building. The transmission side fixed column 1 and the operating side fixed column 2 constitute the column of the rolling mill frame. The upper connecting beam 3, the upper connecting beam 3 and the middle connecting beam 4 are distributed along the column from top to bottom and fixed on both sides of the column. The transmission side fixed column 1, the operating side fixed column 2, the upper connecting beam 3, the middle connecting beam 4 and the lower connecting beam 5 constitute the overall frame of the rolling mill frame. Similarly, the two columns are sequentially provided with AWC hydraulic cylinder mounting holes 10 and balance cylinder mounting holes 10 from top to bottom. 1 and main connecting shaft mounting hole 12, AWC hydraulic cylinder mounting hole 10 is used to install AWC hydraulic cylinder, balance cylinder mounting hole 11 is used to install balance cylinder, main connecting shaft mounting hole 12 is used to install main connecting shaft, under the action of AWC hydraulic cylinder and balance cylinder, the opening degree of roller (on roller bearing seat) is adjusted and the roller is pulled back and reset, the power of external motor is transmitted to roller through main connecting shaft, vertical roller is rotatably installed between roller bearing seats, roller bearing seat is slidably installed on roller frame, illustratively, roller is rotatably installed on roller bearing seat, roller is embedded in sliding guide groove 22, thereby realizing sliding connection between roller bearing seat and rolling mill frame.

[0035] In this embodiment, the overall frame of the rolling mill frame is formed by the transmission side fixed column 1, the operating side fixed column 2, the upper connecting beam 3, the middle connecting beam 4, and the lower connecting beam 5. The frame serves as an overall force-bearing frame during steel rolling. The upper connecting beam 3, the middle connecting beam 4, and the lower connecting beam 5 serve as connecting beams of the rolling mill frame to achieve a tight connection between the transmission side fixed column 1 and the operating side fixed column 2, which can improve the strength and rigidity of the overall frame. Furthermore, the upper connecting beam 3 and the middle connecting beam 4 corresponding to each side are fixedly connected by the second tie rod 62, and the middle connecting beam 4 and the lower connecting beam 5 corresponding to each side are fixedly connected by the first tie rod 61. The first tie rod 61 and the second tie rod 62 can also be fixed by means of bolts or pins. During the rolling process, the rolling force applied to the rolling mill frame can be more evenly transmitted to the columns and the connecting beams, thereby further improving the rigidity, strength, and stability of the overall frame. Under the overall frame, the following structures are distributed in sequence from top to bottom along the columns: The AWC hydraulic cylinder mounting hole 10, the balance cylinder mounting hole 11 and the main connecting shaft mounting hole 12 can also ensure the smooth operation of the hydraulic cylinder or the connecting shaft after installation. Therefore, the vertical roller mill frame can be directly assembled into an integral frame by a plurality of beams and columns, and the integral frame and the reinforcement structure (pull rod 6) of the integral frame are further assembled. Due to the simple structure of each part, the processing difficulty of the roller frame is reduced, and the production and transportation costs are effectively reduced; further, since the sliding guide grooves 22 on both sides are used for sliding connection of the roller bearing seat, and the guide pressure plate 7 constituting the sliding guide groove 22 is installed on the top of the upper connecting beam 3 through a detachable fixing member 8, the detachable fixing member 8 is detachable. Therefore, when replacing the roller, there is no need to disassemble the overall frame. The limitation of the guide pressure plate 7 on the roller bearing seat can be released by removing the detachable fixing member 8, and then the roller (and the roller bearing seat as a whole) can be directly lifted out or lifted in from the top of the upper connecting beam 3 (that is, the top of the installation window 14) to achieve rapid roller replacement and reduce maintenance time. The present invention adopts the lower transmission vertical roller, and there is no need to remove the main connecting shaft, and the roller can be directly hung.

[0036] The present invention divides the rolling mill frame into multiple independent but interconnected components, such as columns, connecting beams and tie rods 6. These components can be manufactured, processed and transported separately, and then assembled on site, which greatly improves the manufacturing efficiency and flexibility. The design of upper, middle and lower three-layer connecting beams and the setting of the tie rods 6 further enhance the overall stability of the frame. Through reasonable layout and adjustment, the stress condition of the frame can be optimized, deformation and vibration can be reduced, and rapid roll changing can be achieved. In summary, the combined frame type vertical roll mill frame created by the present invention effectively overcomes the problems of difficult processing, high cost and difficult roll changing of traditional frames through a series of innovative designs, and provides a more efficient, economical and reliable solution for the design and manufacture of vertical roll mills.

[0037] See also Figure 3 As an optional embodiment of the present invention, a plurality of the first pull rod 61 and the second pull rod 62 are provided on each side, and both the first pull rod 61 and the second pull rod 62 can be telescopically arranged.

[0038] Specifically, there is no essential difference in structure between the first tie rod 61 and the second tie rod 62 (both are components of the tie rod 6), and generally there is only a difference in size. The two ends of the tie rod 6 are respectively fixed to the corresponding connecting beams through the connecting pin 15. The two ends of the first tie rod 61 are fixedly connected to the middle connecting beam 4 and the lower connecting beam 5, and the two ends of the second tie rod 62 are fixedly connected to the upper connecting beam 3 and the middle connecting beam 4. Corresponding ear seats are fixedly provided on the connecting beams. The connecting pin 15 fixes the end of the tie rod 6 on the ear seat, and the rod body of the tie rod 6 is segmented, for example Figure 3 The middle pull rod 6 is divided into two sections from the middle, and connecting ears are provided at the opposite parts of the two sections. The connecting ears are connected by bolts. By adding or removing gaskets 19 between the connecting ears, the pull rod 6 can be extended or shortened.

[0039] The pull rod 6 is a component used to stabilize the overall frame of the rolling mill frame. It plays the role of stabilizing and supporting the upper connecting beam 3 and the middle connecting beam 4 on each side, and the middle connecting beam 4 and the lower connecting beam 5 on each side. After the upper connecting beam 3, the middle connecting beam 4 and the lower connecting beam 5 are fixed to both sides of the fixed column 1 on the transmission side and the fixed column 2 on the operating side by bolts, they may be prone to loosening and deformation. Through the retractable setting of the pull rod 6, the overall frame can be reinforced by adjusting the length under the conditions of loosening and deformation.

[0040] like Figure 4 As shown, as an optional embodiment of the present invention, the first pull rod 61 on each side is arranged alternately in an inclined and vertical manner between the middle connecting beam 4 and the lower connecting beam 5, and the main connecting shaft mounting hole 12 is centrally arranged (to ensure centering) and close to the middle connecting beam 4 or the lower connecting beam 5 (to ensure strength and rigidity).

[0041] Preferably, the mounting holes on the two columns are arranged correspondingly, and two pairs (four) of AWC hydraulic cylinder mounting holes 10 are provided, the upper two (one each along the positive and negative directions of the X-axis) are arranged between the upper connecting beams 3 on both sides, and the lower two are arranged between the middle connecting beams 4 on both sides. The two balancing cylinder mounting holes 11 are respectively arranged on the transmission side fixed column 1 and the operating side fixed column 2 and are located between the middle connecting beam 4 and the lower connecting beam 5. Thus, the hydraulic cylinder or the main connecting shaft can be ensured to be stably installed.

[0042] Specifically, a plurality of first tie rods 61 are provided between the middle connecting beam 4 and the lower connecting beam 5 on each side. Figure 4The inclined and vertical alternating arrangements shown in the figure can form a multi-directional connection support between the middle connecting beam 4 and the lower connecting beam 5 on each side, which can adapt to the forces in different directions during the rolling process, so that the middle connecting beam 4 and the lower connecting beam 5 remain firmly connected without deformation, and the first tie rod 61 is telescopically arranged, and can be adjusted in length to achieve alternating arrangements. Each first tie rod 61 can firmly support the middle connecting beam 4 and the lower connecting beam 5, so that the relative positions of the middle connecting beam 4 and the lower connecting beam 5 on the transmission side fixed column 1 and the operating side fixed column 2 will not be deformed, thereby ensuring the stability of the overall frame of the rolling mill frame, especially for the part near the bottom, which is used to install the lower connecting beam 5 (the main connecting shaft is preferably installed in the center and close to the middle connecting beam 4 or the lower connecting beam 5, Figure 2 The middle main shaft mounting hole 12 is close to the lower connecting beam 5). The main shaft installed in the main shaft mounting hole 12 is used to transmit the power of the rolling roller, and has higher requirements on strength and rigidity. Therefore, the alternating inclination and verticality of the first pull rod 61 can better meet this requirement, thereby ensuring the stable transmission of the power of the rolling roller during the rolling process.

[0043] like Figure 7 and Figure 8 As shown, as an optional embodiment of the present invention, the guide pressure plate 7 includes a first guide portion 71 and a second guide portion 72, the first guide portion 71 is in contact with the top surface of the upper connecting beam 3, the second guide portion 72 is fixed to the top of the first guide portion 71, the first guide portion 71, the second guide portion 72 and the upper connecting beam 3 form the sliding guide groove 22, and the detachable fixing part 8 passes through the first guide portion 71 and the second guide portion 72 and then is connected to the upper connecting beam 3.

[0044] Specifically, by setting the guide pressure plate 7 as the first guide part 71 and the second guide part 72, the first guide part 71 can support the second guide part 72, so that the second guide part 72 can be supported to form a sliding guide groove 22 with the first guide part 71 and the upper connecting beam 3. Correspondingly, the detachable fixing part 8 passes through the first guide part 71 and the second guide part 72 to achieve the detachable fixing of the guide pressure plate 7 on the upper connecting beam 3. Since the detachable fixing part 8 passes through the first guide part 71 and the second guide part 72, multi-point contact fixation is achieved, thereby improving the fixing effect.

[0045] like Figure 7As shown, as an optional embodiment of the present invention, the first guide portion 71 is in a folding shape, and the folded first guide portion 71 includes a fitting portion and a side portion that are fixedly connected, the fitting portion of the first guide portion 71 is fitted with the upper connecting beam 3, the side portion of the first guide portion 71 is fixedly connected to the second guide portion 72, and a reinforcing rib is further provided between the first guide portion 71 and the second guide portion 72, and the detachable fixing part 8 passes through the fitting portion of the first guide portion 71 and the second guide portion 72.

[0046] Specifically, the first guide portion 71 of the folded type is in a right angle shape (the side portion and the fitting portion are perpendicular to each other), the fitting portion fits with the surface of the upper connecting beam 3, and the side portion is used to fix the second guide portion 72. Along the length direction of the first guide portion 71, the first guide portion 71 is fixed to the middle portion of the second guide portion 72, and the reinforcing ribs extend along the bottom of the second guide portion 72 to the surface of the first guide portion 71, and are respectively fixedly connected to the side portion, the fitting portion and the second guide portion 72 of the first guide portion 71, thereby improving the mechanical properties of the guide pressure plate 7, so that the guide pressure plate 7 and the upper connecting beam 3 cooperate to firmly confine the roller of the roller bearing in the sliding guide groove 22, completing the roller bearing seat ( Figure 7 It should be noted that a sliding guide groove 22 is formed between the side wall of the first guide portion 71 (the side portion and the side edge portion of the fitting portion), the bottom of the second guide portion 72 and the surface of the upper connecting beam 3. Generally, a concave groove is provided on the surface of the upper connecting beam 3 and the surface opposite to the bottom of the second guide portion 72 to limit the roller of the roller bearing seat therein, thereby forming a sliding connection between the roller bearing seat and the rolling mill frame, so as to adjust the roller opening and pull back and reset the roller under the action of the AWC hydraulic cylinder and the balancing cylinder (through the roller bearing seat).

[0047] like Figure 7 , Figure 8 As shown, as an optional embodiment of the present invention, the detachable fixing part 8 includes a positioning pin 81, a wedge hole 82, an inclined wedge 83 and a washer 84, the bottom end of the positioning pin 81 is fixedly connected to the upper connecting beam 3, the first guide portion 71 and the second guide portion 72 are integrally provided with a through hole that is clearance-matched with the positioning pin 81, the top end of the positioning pin 81 is exposed through the through hole and is sleeved with the washer 84, the positioning pin 81 is provided with the wedge hole 82, the inclined wedge 83 is inserted into the wedge hole 82 and presses the washer 84 against the surface of the second guide portion 72.

[0048] Specifically, when fixing the guide plate 7, the first guide part 71 and the second guide part 72 are facing the inner side of the rolling mill frame with the groove formed by the groove. The two guide plates 7 are arranged opposite to each other, and then the through hole is aligned with the positioning pin 81 and inserted, so that the fitting part of the first guide part 71 fits with the surface of the upper connecting beam 3, and then the washer 84 is sleeved on the outside of the positioning pin 81, and finally the inclined wedge 83 is inserted from the wedge hole 82 until the washer 84 is pressed against the surface of the guide plate 7. Part of the wedge hole 82 needs to be exposed through the through hole so that the inclined wedge 83 can press the washer 84 so that the washer 84 fits with the surface of the second guide part 72. It should be noted that the inclined wedge 83 can also be provided with a limiting hole, and a pin can be inserted into the limiting hole to prevent the inclined wedge 83 from falling off. When disassembling the guide plate 7, the process is opposite to the installation process, and will not be described here. Compared with the connection through bolts, the above connection can achieve rapid disassembly and assembly, that is, it provides conditions for rapid roll replacement without disassembling the overall frame.

[0049] like Figure 4 , Figure 6 , Figure 7 and Fig. 9 As shown, as an optional embodiment of the present invention, a guide assembly is further provided between the upper connecting beam 3 and the middle connecting beam 4, and the guide assembly includes an inlet and outlet guide plate 9, a corresponding lower guide roller 20 and an upper guide plate 21, the upper guide plate 21 is detachably provided between the upper connecting beams 3 on both sides through the detachable fixing member 8, the lower guide roller 20 is rotatably installed between the middle connecting beams 4 on both sides, and the inlet and outlet guide plates 9 are fixed to the upper connecting beams 3 on both sides and are located on the relatively outer sides of the upper guide plates 21.

[0050] Specifically, the upper guide plate 21 and the lower guide roller 20 are respectively installed at the upper and lower parts of the rolling mill frame, and are used to constrain the upper and lower positions of the rolled steel plate. The lower guide roller 20 also guides the rolled steel plate. The lower guide roller 20 is rotatable and has a plurality of guides, and guides the rolled steel plate from the inlet side to the outlet side (along the Y-axis direction). The lower guide roller 20 is installed between the middle connecting beams 4 on both sides through the seat body. The upper guide plate 21 is fixed between the upper connecting beams 3 on both sides. The upper guide plate 21 is "U" shaped, and the upper guide plate 2 The two ends of 1 are also fixed by detachable fixing parts 8, and the bottom of the "U" shape is opposite to the lower guide roller 20, which mainly plays the role of restraining the rolled steel plate. The inlet and outlet guide plates 9 are respectively arranged on the inlet side and the outlet side and are located at the bottom of the upper connecting beam 3. The upper guide plate 21 is arranged in the middle position. The inlet and outlet guide plates 9 are arranged on the relatively outer side of the upper guide plate 21, that is, fixed at the inlet and outlet of the rolling mill frame, which is used to prevent the rolling mill frame as a whole from being impacted by the rolled steel plate, thereby protecting the rolling mill frame as a whole (especially the upper connecting beam 3).

[0051] It should be noted that, since the detachable fixing part 8 is detachable, the principles of installing the upper guide plate 21 and the guide pressure plate 7 are the same, and both are installed on the upper connecting beam 3. Referring to the description of installing the guide pressure plate 7 in the previous embodiment, when installing the upper guide plate 21, the upper guide plate 21 can be directly replaced with the guide pressure plate 7. The size of the detachable fixing part 8 for installing the upper guide plate 21 is generally larger than the size of the detachable fixing part 8 for installing the guide pressure plate 7. When replacing the rolling mill rolls, it is necessary to remove the guide pressure plate 7 and the upper guide plate 21 at the same time. There is no need to disassemble the overall frame formed by the columns (the fixed columns 1 on the transmission side and the fixed columns 2 on the operating side) and the connecting beams (the upper connecting beam 3, the middle connecting beam 4 and the lower connecting beam 5) of the rolling mill frame, so that the rolling mill rolls can be quickly replaced.

[0052] like Figure 5 As shown, as an optional embodiment of the present invention, along the withdrawal direction of the AWC hydraulic cylinder on the AWC hydraulic cylinder mounting hole 10, the side walls of the transmission side fixed column 1 and the operating side fixed column 2 are respectively installed with disassembly and assembly auxiliary brackets 13.

[0053] Specifically, the extraction direction is also the disassembly direction, along Figure 5 The positive and reverse directions of the middle X-axis can be selected according to actual needs. The disassembly and assembly auxiliary bracket 13 is installed on at least one side of the transmission side fixed column 1 and the operation side fixed column 2.

[0054] In this optional embodiment, the disassembly and assembly auxiliary bracket 13 can support the AWC hydraulic cylinder during disassembly and assembly. In short, the disassembly and assembly auxiliary bracket 13 is used to assist in the disassembly of the AWC hydraulic cylinder to achieve rapid replacement of the AWC hydraulic cylinder.

[0055] See also Figure 1 , Figure 5 and Figure 6 As an optional embodiment of the present invention, the disassembly and assembly auxiliary bracket 13 includes an arc portion 131 and a mounting seat 132 that are fixedly connected to each other, the mounting seat 132 is used to be fixedly connected to the transmission side fixed column 1 or the operating side fixed column 2, and the arc portion 131 is used to lift the AWC hydraulic cylinder.

[0056] Specifically, the mounting seat 132 is used to be fixedly connected to the transmission side fixed column 1 or the operation side fixed column 2, and includes two mounting plates fixed vertically to each other, wherein one mounting plate is fixed to the side wall of the transmission side fixed column 1 or the operation side fixed column 2, and the top of the other mounting plate is fixed to the arc portion 131, which is used to form a main support for the arc portion 131, and the center line of the arc bottom of the arc portion 131 is the fixed connection position of the other mounting plate, and the arc portion 131 is concentrically arranged with the AWC hydraulic cylinder mounting hole 10, and the top surface of the arc portion 131 is flush with the circular surface of the AWC hydraulic cylinder mounting hole 10, thereby, when the AWC hydraulic cylinder is disassembled and assembled from the AWC hydraulic cylinder mounting hole 10, the arc portion 131 can play a guiding and lifting role.

[0057] On the other hand, Fig.10 As shown, the present invention also provides a vertical roller mill, including the combined frame type vertical roller mill frame as described in the above embodiment.

[0058] The specific implementation of this embodiment can also refer to the corresponding implementation of the aforementioned combined frame type vertical roller mill frame, which will not be described here.

[0059] The above description is only a specific embodiment of the present invention, so that those skilled in the art can understand or implement the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but should conform to the widest scope consistent with the principles and novel features invented herein.

[0060] 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 combined frame type vertical roller mill frame, characterized in that: The invention comprises a transmission side fixed column (1), an operating side fixed column (2), an upper connecting beam (3), an intermediate connecting beam (4), a lower connecting beam (5) and a pull rod (6); the transmission side fixed column (1) and the operating side fixed column (2) are respectively fixedly connected by the upper connecting beam (3), the intermediate connecting beam (4) and the lower connecting beam (5); two groups of the upper connecting beam (3), the intermediate connecting beam (4), the lower connecting beam (5) and the pull rod (6) are symmetrically distributed on both sides of the transmission side fixed column (1) and the operating side fixed column (2); the pull rod (6) comprises a first pull rod (61) and a second pull rod (62); the upper connecting beam (3) and the intermediate connecting beam (4) corresponding to each side are connected to each other; The beams (4) are fixedly connected by the second tie rod (62), the corresponding middle connecting beam (4) and the lower connecting beam (5) on each side are fixedly connected by the first tie rod (61), the transmission side fixed column (1) and the operating side fixed column (2) are provided with AWC hydraulic cylinder mounting holes (10), balance cylinder mounting holes (11) and main connecting shaft mounting holes (12) from top to bottom, and the tops of the upper connecting beams (3) on both sides are detachably mounted with guide pressure plates (7) through detachable fixing parts (8), and sliding guide grooves (22) are formed between the guide pressure plates (7) and the upper connecting beams (3) on each side, and the sliding guide grooves (22) on both sides are used for sliding connection of the roller bearing seats.

2. The combined frame type vertical roller mill frame according to claim 1, characterized in that: A plurality of the first pull rods (61) and the second pull rods (62) are provided on each side, and both the first pull rods (61) and the second pull rods (62) can be telescopically arranged.

3. The combined frame type vertical roller mill frame according to claim 2, characterized in that: The first pull rod (61) on each side is arranged alternately in an inclined and vertical manner between the middle connecting beam (4) and the lower connecting beam (5), and the main connecting shaft mounting hole (12) is centrally arranged and close to the middle connecting beam (4) or the lower connecting beam (5).

4. The combined frame type vertical roller mill stand according to claim 1, characterized in that: The guide pressure plate (7) includes a first guide portion (71) and a second guide portion (72), wherein the first guide portion (71) is in contact with the top surface of the upper connecting beam (3), and the second guide portion (72) is fixed to the top of the first guide portion (71), and the first guide portion (71), the second guide portion (72) and the upper connecting beam (3) form the sliding guide groove (22), and the detachable fixing member (8) passes through the first guide portion (71) and the second guide portion (72) and is connected to the upper connecting beam (3).

5. The combined frame type vertical roller mill stand according to claim 4, characterized in that: The first guide portion (71) is in a folding shape, and the folded first guide portion (71) comprises a fitting portion and a side portion which are fixedly connected, the fitting portion of the first guide portion (71) fits with the upper connecting beam (3), the side portion of the first guide portion (71) is fixedly connected with the second guide portion (72), a reinforcing rib is further provided between the first guide portion (71) and the second guide portion (72), and the detachable fixing member (8) passes through the fitting portion of the first guide portion (71) and the second guide portion (72).

6. The combined frame type vertical roller mill stand according to claim 5, characterized in that: The detachable fixing member (8) comprises a positioning pin (81), a wedge hole (82), an inclined wedge (83) and a washer (84); the bottom end of the positioning pin (81) is fixedly connected to the upper connecting beam (3); the first guide portion (71) and the second guide portion (72) are integrally provided with a through hole that is clearance-matched with the positioning pin (81); the top end of the positioning pin (81) is exposed from the through hole and is sleeved with the washer (84); the positioning pin (81) is provided with the wedge hole (82); the inclined wedge (83) is inserted into the wedge hole (82) and presses the washer (84) against the surface of the second guide portion (72).

7. The combined frame type vertical roller mill stand according to claim 1 or 6, characterized in that: A guide assembly is also provided between the upper connecting beam (3) and the middle connecting beam (4), and the guide assembly comprises an inlet and outlet guide plate (9), a corresponding lower guide roller (20) and an upper guide plate (21); the upper guide plate (21) is detachably provided between the upper connecting beams (3) on both sides through the detachable fixing member (8); the lower guide roller (20) is rotatably installed between the middle connecting beams (4) on both sides; the inlet and outlet guide plates (9) are fixed to the upper connecting beams (3) on both sides and are located on the relatively outer sides of the upper guide plates (21).

8. The combined frame type vertical roller mill stand according to any one of claims 1 to 6, characterized in that: Along the withdrawal direction of the AWC hydraulic cylinder on the AWC hydraulic cylinder mounting hole (10), the side walls of the transmission side fixed column (1) and the operation side fixed column (2) are respectively installed with disassembly and assembly auxiliary brackets (13).

9. The combined frame type vertical roller mill stand according to claim 8, characterized in that: The disassembly and assembly auxiliary bracket (13) comprises an arc-shaped portion (131) and a mounting seat (132) which are fixedly connected to each other, the mounting seat (132) is used for being fixedly connected to the transmission side fixed column (1) or the operation side fixed column (2), and the arc-shaped portion (131) is used for lifting the AWC hydraulic cylinder.

10. A vertical rolling mill, characterized in that: It comprises a combined frame type vertical roller mill frame as described in any one of claims 1 to 9.

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