Adjustable grinding roller structure for vertical roller mill

Abstract

The adjustable grinding roller structure comprises a box body with a box door, a grinding disc is fixedly connected in the box body, a motor is fixedly connected to the top of the box body, an output shaft of the motor penetrates through the box body and is fixedly connected with an adjusting plate, an inserting groove is formed in the bottom of the adjusting plate, and the adjusting plate is fixedly connected with the box door. A mounting plate is slidably inserted in the inserting groove, bearing plates are fixedly connected to the two sides of the bottom end of the mounting plate, rotating grooves are formed in the bottoms of the bearing plates, bearing rods are mounted in the rotating grooves, grinding rollers fixedly sleeve the bearing rods, a rotating cavity is formed in the top of the adjusting plate, and a threaded rod is rotatably connected to the interior of the rotating cavity; through the arrangement of the adjusting assembly, the grinding roller can be conveniently adjusted to adapt to the real-time change of materials, the grinding stability of the vertical mill is ensured, and the grinding yield is improved.

Description

Technical Field

[0001] The utility model relates to the field of vertical roller mill related products, and specifically relates to an adjustable grinding roller structure for a vertical roller mill. Background Technique

[0002] The vertical roller mill, abbreviated as the vertical mill, is used for the grinding and processing of cement raw meal, cement clinker, slag and coal slag. It has the characteristics of simple structure, low manufacturing and use costs. In the grinding process, the material is spread on the grinding table, and then crushed by multiple grinding rollers into fine finished products. The stability of this grinding process is mainly determined by the particle size of the material, the grinding roller pressure, and the number of grinding rollers. In actual grinding, it is often encountered that the particle size distribution of the material deviates greatly, the large particles are too large, and the small particles are too small; for this kind of material, if the same grinding form is adopted for multiple grinding rollers, the gap between the grinding roller and the grinding table is determined by the thickness of the material after rolling;

[0003] Since the particles of the material are constantly changing, the single gap between the existing grinding roller and the grinding table of the vertical roller mill is difficult to meet the changes in actual operation, which leads to continuous changes in the grinding stability and affects the grinding output. Content of the Utility Model

[0004] The purpose of the utility model is to provide an adjustable grinding roller structure for a vertical roller mill to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: An adjustable grinding roller structure for a vertical roller mill, including a box body with a box door, a grinding table is fixedly connected inside the box body, a motor is fixedly connected to the top of the box body, the output shaft of the motor penetrates the box body and is fixedly connected with an adjusting plate, a slot is arranged at the bottom of the adjusting plate, an installation plate is slidably inserted in the slot, bearing plates are fixedly connected to both sides of the bottom end of the installation plate, a rotating slot is arranged at the bottom of the bearing plate, a bearing rod is installed in the rotating slot, a grinding roller is fixedly sleeved on the bearing rod, a rotating cavity is arranged at the top of the adjusting plate, a threaded rod is rotatably connected in the rotating cavity, the bottom end of the threaded rod penetrates the rotating cavity and extends into the slot, a thread groove corresponding to the threaded rod is arranged at the top end of the installation plate, the threaded rod is threadedly inserted in the thread groove, a rotating rod is rotatably inserted on one side of the adjusting plate, a first gear is fixedly connected to one end of the rotating rod located in the rotating cavity, a second gear meshing with the first gear is fixedly sleeved on the threaded rod, a rotating block is fixedly connected to the other end of the rotating rod, a stop rod is slidably inserted in one end of the rotating block, and a plurality of stop grooves corresponding to the stop rod are arranged on the outer wall of the adjusting plate. A feed pipe is fixedly inserted at the top end of the box body.

[0006] Preferably, a feeding hopper is arranged inside the box body, and the feeding hopper is fixedly inserted at the bottom of the box body.

[0007] Preferably, both sides of the adjusting plate are provided with sliding openings communicating with the slot. A sliding rod is fixedly connected inside the sliding opening. A traction plate is slidably sleeved on the sliding rod. One end of the traction plate is fixedly connected to the outer wall of the mounting plate.

[0008] Preferably, a limiting sleeve is fixedly sleeved on one end of the stop rod. A spring is sleeved on the stop rod. Two ends of the spring respectively abut against the limiting sleeve and the rotating block.

[0009] Preferably, four support feet arranged in a rectangle are fixedly connected to the bottom of the box body.

[0010] Preferably, the motor is a servo motor with the model of MHMD082P1U.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] For the adjustable grinding roller structure for the vertical roller mill, materials are introduced into the box body through the feed pipe and fall onto the grinding disc. By controlling the start of the motor, the adjusting plate can be driven to rotate. At this time, the mounting plate will rotate accordingly. When the mounting plate rotates, the grinding roller mounted on the bearing rod will rotate accordingly to grind the materials. The distance between the grinding roller and the grinding disc can be adjusted by rotating the rotating block to drive the rotating rod to make the first gear rotate. When the first gear rotates, the threaded rod will rotate in the rotating cavity. When the threaded rod rotates, the mounting plate threadedly sleeved thereon will move accordingly, so as to realize the adjustment of the distance between the grinding roller and the grinding disc. Then, slide the stop rod into the corresponding stop groove to realize the rotation fixation of the rotating rod. Through the setting of the adjusting component, the present utility model can conveniently adjust the grinding roller, adapt to the real-time changes of the materials, ensure the stability of vertical grinding and improve the grinding output. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic structural diagram of an adjustable grinding roller structure for a vertical roller mill of the present utility model;

[0014] Figure 2 is a schematic diagram of the meshing of the first gear and the second gear of an adjustable grinding roller structure for a vertical roller mill of the present utility model;

[0015] Figure 3 is an enlarged view of part A of an adjustable grinding roller structure for a vertical roller mill of the present utility model.

[0016] In the figure: 1, box body; 2, grinding disc; 3, motor; 4, adjusting plate; 5, mounting plate; 6, bearing plate; 7, bearing rod; 8, grinding roller; 9, threaded rod; 10, rotating rod; 11, first gear; 12, second gear; 13, rotating block; 14, stop rod; 15, feeding hopper; 16, sliding rod; 17, traction plate; 18, limiting sleeve; 19, spring; 20, support foot; 21, feed pipe. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0018] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0019] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0020] Please refer to Figures 1-3, an embodiment provided by the present utility model: an adjustable roller structure for a vertical roller mill, including a box body 1 with a box door, a grinding disc 2 is fixedly connected inside the box body 1, a motor 3 is fixedly connected to the top of the box body 1, the output shaft of the motor 3 penetrates the box body 1 and is fixedly connected to an adjusting plate 4, a slot is provided at the bottom of the adjusting plate 4, an installation plate 5 is slidably inserted in the slot, both sides of the bottom end of the installation plate 5 are fixedly connected with bearing plates 6, a rotating groove is provided at the bottom of the bearing plate 6, a bearing rod 7 is installed in the rotating groove, a roller 8 is fixedly sleeved on the bearing rod 7, a rotating cavity is provided at the top of the adjusting plate 4, a threaded rod 9 is rotatably connected in the rotating cavity, the bottom end of the threaded rod 9 penetrates the rotating cavity and extends into the slot, a threaded groove corresponding to the threaded rod 9 is provided at the top end of the installation plate 5, and the threaded rod 9 is threadedly inserted in the threaded groove. A rotating rod 10 is rotatably inserted on one side of the adjusting plate 4, a first gear 11 is fixedly connected to the end of the rotating rod 10 located in the rotating cavity, a second gear 12 meshing with the first gear 11 is fixedly sleeved on the threaded rod 9, a rotating block 13 is fixedly connected to the other end of the rotating rod 10, a stop rod 14 is slidably inserted at one end of the rotating block 13, and a plurality of stop grooves corresponding to the stop rod 14 are provided on the outer wall of the adjusting plate 4. Specifically, rotating the rotating block 13 drives the rotating rod 10 to cause the first gear 11 to rotate. When the first gear 11 rotates, it will drive the second gear 12 to rotate the threaded rod 9 in the rotating cavity. When the threaded rod 9 rotates, the installation plate 5 threadedly sleeved thereon will move accordingly to adjust the distance between the roller 8 and the grinding disc 2, and then slide the stop rod 14 into the corresponding stop groove to fix the rotation of the rotating rod 10; a feed pipe 21 is fixedly inserted at the top of the box body 1.

[0021] In this embodiment, a blanking hopper 15 is provided inside the box body 1, and the blanking hopper 15 is fixedly inserted at the bottom of the box body 1. It is convenient for centralized blanking; sliding openings communicating with the slot are provided on both sides of the adjusting plate 4, sliding rods 16 are fixedly connected in the sliding openings, a traction plate 17 is slidably sleeved on the sliding rods 16, and one end of the traction plate 17 is fixedly connected to the outer wall of the installation plate 5 to support the movement of the installation plate 5 and prevent it from revolving with the threaded rod 9; a limit sleeve 18 is fixedly sleeved on one end of the stop rod 14, a spring 19 is sleeved on the stop rod 14, and both ends of the spring 19 abut against the limit sleeve 18 and the rotating block 13 respectively, and the resilience of the spring 19 is used to automatically rebound the stop rod 14 into the stop groove; four support feet 20 arranged in a rectangle are fixedly connected to the bottom of the box body 1 to support the box body 1; the motor 3 is a servo motor, and the model is MHMD082P1U type.

[0022] Working principle: First, the feeding pipe 21 guides the material into the box body 1 and it falls onto the grinding disc 2. By controlling the start of the motor 3, the adjusting plate 4 can be driven to rotate. At this time, the mounting plate 5 will rotate accordingly. When the mounting plate 5 rotates, the grinding roller 8 mounted on the bearing rod 7 rotates accordingly to grind the material. The first gear 11 can be driven to rotate by rotating the rotating block 13 to drive the rotating rod 10. When the first gear 11 rotates, it will drive the second gear 12 to make the threaded rod 9 rotate in the rotating cavity. When the threaded rod 9 rotates, the mounting plate 5 sleeved on the thread will move accordingly to adjust the distance between the grinding roller 8 and the grinding disc 2. Then, slide the stop rod 14 into the corresponding stop groove to fix the rotation of the rotating rod 10.

[0023] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present utility model, the present utility model can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

Claims

1. An adjustable grinding roller structure for a vertical roller mill, comprising a box body (1) having a box door, characterized in that: A grinding disc (2) is fixedly connected to the box body (1), a motor (3) is fixedly connected to the top of the box body (1), an output shaft of the motor (3) passes through the box body (1) and is fixedly connected to an adjustment plate (4), a slot is provided at the bottom of the adjustment plate (4), a mounting plate (5) is slidably inserted in the slot, a bearing plate (6) is fixedly connected to both sides of the bottom end of the mounting plate (5), a rotation groove is provided at the bottom of the bearing plate (6), a bearing rod (7) is installed in the rotation groove, a grinding roller (8) is fixedly sleeved on the bearing rod (7), a rotation cavity is provided at the top of the adjustment plate (4), a threaded rod (9) is rotatably connected in the rotation cavity, the bottom end of the threaded rod (9) passes through the rotation cavity and is slidably inserted into the slot The top end of the mounting plate (5) is provided with a screw groove corresponding to the threaded rod (9), the threaded rod (9) is threadedly inserted in the screw groove, a rotating rod (10) is rotatably inserted on one side of the adjusting plate (4), one end of the rotating rod (10) located in the rotating cavity is fixedly connected to a first gear (11), a second gear (12) meshing with the first gear (11) is fixedly sleeved on the threaded rod (9), the other end of the rotating rod (10) is fixedly connected to a rotating block (13), one end of the rotating block (13) is slidably inserted with a stop rod (14), a plurality of stop grooves corresponding to the stop rod (14) are provided on the outer wall of the adjusting plate (4), and a feed pipe (21) is fixedly inserted at the top end of the box body (1).

2. The adjustable grinding roller structure for a vertical roller mill according to claim 1, characterized in that: A lower hopper (15) is provided in the box body (1), and the lower hopper (15) is fixedly inserted at the bottom of the box body (1).

3. The adjustable grinding roller structure for a vertical roller mill according to claim 1, characterized in that: Both sides of the adjustment plate (4) are provided with sliding openings connected to the slots, a sliding rod (16) is fixedly connected inside the sliding opening, a traction plate (17) is slidably sleeved on the sliding rod (16), and one end of the traction plate (17) is fixedly connected to the outer wall of the mounting plate (5).

4. The adjustable grinding roller structure for a vertical roller mill according to claim 1, characterized in that: A limit sleeve (18) is fixedly sleeved on one end of the stop rod (14), a spring (19) is sleeved on the stop rod (14), and two ends of the spring (19) respectively abut against the limit sleeve (18) and the rotating block (13).

5. The adjustable grinding roller structure for a vertical roller mill according to claim 1, characterized in that: Four supporting feet (20) arranged in a rectangular shape are fixedly connected to the bottom of the box body (1).

6. The adjustable grinding roller structure for a vertical roller mill according to claim 1, characterized in that: The motor (3) is a servo motor, model MHMD082P1U.

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