Hydraulic cylinder assembly of vertical mill

Abstract

The utility model discloses a vertical mill hydraulic cylinder assembly which comprises a hydraulic cylinder, a connecting assembly, a connecting rod head and a protective sleeve, a piston rod of the hydraulic cylinder is connected with the connecting rod head through the connecting assembly, and the protective sleeve is sleeved on the piston rod of the hydraulic cylinder and located between a cylinder body of the hydraulic cylinder and the connecting assembly. One end of the sheath is fixedly arranged on one side end of the hydraulic cylinder body through a first pipe clamp, and the other end of the sheath is fixedly arranged on one side end, facing the hydraulic cylinder body, of the connecting assembly through a second pipe clamp. The whole vertical mill hydraulic cylinder assembly is simple in structure, compact in layout and modular in design, and the vertical mill hydraulic cylinder assembly is adaptive to mills of different models by replacing the module connecting assemblies and the connecting rod heads.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical equipment technology, specifically relating to a vertical mill hydraulic cylinder assembly, used to provide pressure to the grinding rollers against the grinding disc during grinding, and to lift the grinding rollers and protect the grinding disc when not in operation. Background Technology

[0002] A mill is a device used to grind larger particles into powder. The grinding process involves using a mill to compress and grind materials into fine particles, which are then screened. Mills can be categorized based on the material being processed and their working principle, including: ball mills, column mills, rod mills, tube mills, autogenous mills, vortex roller mills, vertical mills, multi-layer vertical mills, vertical roller mills, and DMC mills.

[0003] In existing vertical mills, hydraulic cylinders apply pressure to the grinding rollers during operation to grind and pulverize materials. During this process, variations in feed rate and material particle size lead to changes in the material layer thickness, causing the grinding rollers, as the grinding components, to move up and down accordingly. Simultaneously, since one end of a rocker arm is connected to the grinding roller shaft, and the other end is connected to the hydraulic cylinder, the hydraulic cylinder swings back and forth as the grinding roller moves up and down. Through an external hydraulic system and energy storage device, the working pressure of the rod-side and rodless chambers of the hydraulic cylinder changes slowly with the up-and-down movement of the grinding roller, reducing the impact of the grinding roller on the grinding disc. This, in turn, reduces mill vibration, allowing for stable mill operation. However, in existing technology, different mill models have different dimensions, and the stroke range of their hydraulic cylinders also varies. This means that hydraulic cylinders used in mills with the same roller pressure but different models cannot be interchanged, increasing inventory, product costs, and operational risks. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing hydraulic cylinders used in mills with different roller pressures of the same level, which cannot be interchanged, increasing inventory, product costs, and usage risks. This invention proposes a vertical mill hydraulic cylinder assembly that allows for the interchangeability of hydraulic cylinders from mills with different roller pressures of the same level. By replacing one or two auxiliary parts, it adapts to different mill models, achieving mill standardization, increasing component interchangeability, and reducing product costs.

[0005] Technical solution

[0006] To achieve the above technical objectives, this utility model provides a vertical mill hydraulic cylinder assembly, characterized in that: it includes a hydraulic cylinder, a connecting assembly, a connecting rod head, and a protective sleeve; the piston rod of the hydraulic cylinder is connected to the connecting rod head through the connecting assembly; the protective sleeve is fitted onto the piston rod of the hydraulic cylinder 1 and located between the cylinder body of the hydraulic cylinder and the connecting assembly; one end of the protective sleeve is fixedly mounted on one side of the cylinder body of the hydraulic cylinder using a pipe clamp 1; and the other end of the protective sleeve is fixedly mounted on the side of the connecting assembly facing the cylinder body of the hydraulic cylinder using a pipe clamp 2.

[0007] In one embodiment, the hydraulic cylinder is mounted on a base via a self-aligning roller bearing, and the connecting rod head is connected to the rocker arm fork.

[0008] In one embodiment, the connecting assembly includes a clamping nut, which is a split structure, and the split clamping nut is connected and fixed together by a connecting bolt, a connecting nut, and a flat washer.

[0009] Beneficial effects

[0010] This utility model provides a vertical mill hydraulic cylinder assembly, which includes a hydraulic cylinder, a connecting assembly, a connecting rod head, and a protective sleeve. The piston rod of the hydraulic cylinder is connected to the connecting rod head through the connecting assembly. The protective sleeve is fitted onto the piston rod of the hydraulic cylinder and is located between the cylinder body and the connecting assembly. One end of the protective sleeve is fixedly mounted on one side of the cylinder body of the hydraulic cylinder using a pipe clamp, and the other end of the protective sleeve is fixedly mounted on the side of the connecting assembly facing the cylinder body using a pipe clamp. The entire vertical mill hydraulic cylinder assembly has a simple and compact structure, and is a modular design. It can be adapted to different models of mills by replacing the modular connecting assembly and the connecting rod head. Attached Figure Description

[0011] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0012] Appendix Figure 1 This is a front view of an embodiment of the present utility model.

[0013] Appendix Figure 2 This is a perspective view of an embodiment of the present utility model.

[0014] Appendix Figure 3 It is attached Figure 2 Rotational view of the AA section.

[0015] Appendix Figure 4aThis is a front view of the connecting rod head in an embodiment of this utility model.

[0016] Appendix Figure 4b This is a left view of the connecting rod head in an embodiment of this utility model. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0018] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application's specification are for illustrative purposes only and do not represent the only possible implementation.

[0019] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0020] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0021] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used in this application includes any and all combinations of one or more of the associated listed items.

[0022] Example

[0023] In existing technology, different mill models have different external dimensions, and the stroke range of the hydraulic cylinders they use also varies. This means that hydraulic cylinders used in mills of the same grade but different models cannot be interchanged, increasing inventory, product costs, and usage risks. To solve this problem, as shown in the attached... Figure 1 As shown in the figure, this embodiment provides a vertical mill hydraulic cylinder assembly, which includes a hydraulic cylinder 1, a connecting assembly 2, a connecting rod head 3, and a protective sleeve 4. The hydraulic cylinder 1 is mounted on a foundation via a self-aligning roller bearing, as shown in the attached figure. Figure 4a and 4b The connecting rod head 3 shown is connected to the rocker arm fork. The stroke and pressure of the hydraulic cylinder 1 are adjusted to provide a uniform grinding pressure to the grinding roller pressing against the grinding disc. The piston rod 1a of the hydraulic cylinder 1 is connected to the connecting rod head 3 via the connecting assembly 2, as shown in the attached diagram. Figure 3 As shown, the connection part adopts a trapezoidal thread connection with adjustable spacing. The connection component 2 includes a clamping nut 2a, which is a split structure. The split clamping nut 2a is connected and fixed together by a connecting bolt 6, a connecting nut 7, and a flat washer 8.

[0024] The sheath 4 is fitted onto the piston rod 1a of the hydraulic cylinder 1, located between the cylinder body 1b and the connecting assembly 2. Specifically, as shown in the attached figure... Figure 2 As shown, after the main components are connected, one end of the sheath 4 is fixedly mounted on one side of the cylinder body 1b of the hydraulic cylinder 1 using pipe clamp 501, and the other end of the sheath 4 is fixedly mounted on the side of the connecting assembly 2 facing the cylinder body 1b of the hydraulic cylinder 1 using pipe clamp 502. When the piston moves, the sheath 4 extends and retracts accordingly to protect the piston rod.

[0025] This utility model provides a vertical mill hydraulic cylinder assembly, which includes a hydraulic cylinder 1, a connecting assembly 2, a connecting rod head 3, and a protective sleeve 4. The piston rod 1a of the hydraulic cylinder 1 is connected to the connecting rod head 3 through the connecting assembly 2. The protective sleeve 4 is fitted onto the piston rod 1a of the hydraulic cylinder 1 and is located between the cylinder body 1b of the hydraulic cylinder 1 and the connecting assembly 2. One end of the protective sleeve 4 is fixedly mounted on one side of the cylinder body 1b of the hydraulic cylinder 1 using a pipe clamp 501, and the other end of the protective sleeve 4 is fixedly mounted on the side of the connecting assembly 2 facing the cylinder body 1b of the hydraulic cylinder 1 using a pipe clamp 502. The entire vertical mill hydraulic cylinder assembly has a simple and compact structure and is a modular design, which can be adapted to different models of mills by replacing the modular connecting assembly 2 and the connecting rod head 3.

[0026] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0027] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A vertical mill hydraulic cylinder assembly, characterized by: It includes hydraulic cylinder (1), connecting assembly (2), connecting rod head (3) and sheath (4), the piston rod (1a) of the hydraulic cylinder (1) is connected with the connecting rod head (3) through the connecting assembly (2), the sheath (4) is sleeved on the piston rod (1a) of the hydraulic cylinder (1) between the cylinder body (1b) of the hydraulic cylinder (1) and the connecting assembly (2), one end of the sheath (4) is fixedly installed on one side end of the cylinder body (1b) of the hydraulic cylinder (1) by pipe clamp one (501), the other end of the sheath (4) is fixedly installed on one side end of the connecting assembly (2) towards the cylinder body (1b) of the hydraulic cylinder (1) by pipe clamp two (502).

2. A hydraulic cylinder assembly for a vertical mill as claimed in claim 1, wherein: The hydraulic cylinder (1) is installed on the base through the self-aligning roller bearing, and the connecting rod head (3) is connected with the rocker arm fork rod.

3. A hydraulic cylinder assembly for a vertical mill as defined in claim 1, wherein: The connecting assembly (2) includes clamping nut (2a), the clamping nut (2a) is split type structure, and the split clamping nut (2a) is connected and fixed together by connecting bolt (6), connecting nut (7) and flat washer (8).

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