Internal expansion type integral lining plate of vibrating ball mill and vibrating ball mill

Abstract

The internal expansion type integral lining plate comprises an elastic cylindrical lining plate body which is formed by rolling a plate, tensioning areas are arranged at the two ends of the lining plate body, a lining plate area is arranged in the middle of the lining plate body, the lining plate area is matched with a lining of the vibrating ball mill in size, and a tensioning device is arranged on the inner side of the lining plate body and in each tensioning area. The two ends of the tensioning device are fixed to the two opposite connecting sides of the lining plate body respectively, the tensioning device is used for adjusting the outer diameter of the lining plate body, and in the initial state, under the action of the tensioning device, the two opposite connecting sides of the lining plate body are mutually overlapped to form an overlapping area, so that the outer diameter of the lining plate body is smaller than the inner diameter of the vibrating ball mill; the tensioning device is loosened, so that the lining plate body is mounted in the vibrating ball mill in a tensioning manner. According to the utility model, one-time in-place installation is realized, the installation efficiency is greatly improved, the downtime is reduced, the wear resistance and the stability of the lining plate are enhanced, the service life of the lining plate is prolonged, and the maintenance cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of vibratory ball mill technology, and in particular to an internal expansion integral liner for a vibratory ball mill and a vibratory ball mill. Background Technology

[0002] In modern industrial production, vibratory ball mills play a crucial role in numerous fields such as mining, metallurgy, building materials, and chemicals due to their high grinding efficiency. As one of the core components of a vibratory ball mill, the performance and installation method of the liner directly determine the mill's working efficiency, product quality, and equipment lifespan.

[0003] Existing vibratory ball mills largely adopt the liner design of traditional rotary ball mills, using a segmented structure. This segmented liner design requires multiple independent liners to be individually fixed to the inner wall of the ball mill during installation. However, the internal space of a vibratory ball mill is often quite compact, making the installation process extremely cumbersome and time-consuming. Furthermore, during ball mill operation, the intense vibrations can easily loosen the connections between the segmented liners, leading to gradually widening gaps. Once material becomes embedded in these gaps, it not only hinders normal grinding operations and reduces grinding efficiency, but also accelerates liner wear under the continuous vibration and impact of the ball mill, significantly shortening the liner replacement cycle. This, in turn, increases equipment maintenance costs and downtime, severely impacting production continuity and economic efficiency. Traditional connection and installation methods struggle to balance liner tightness with ease of installation and maintenance. These problems severely restrict the further development of ball mill technology and the efficient operation of equipment, urgently requiring a new technical solution. Utility Model Content

[0004] This utility model addresses the shortcomings of existing technologies by providing a vibratory ball mill internal expansion integral liner and vibratory ball mill that can be installed in one go, greatly improving installation efficiency, enhancing the wear resistance and stability of the liner, and extending its service life.

[0005] To achieve the above objectives, this utility model first proposes an internal expansion integral liner for a vibratory ball mill, comprising a flexible cylindrical liner body made of rolled plate. The two ends of the liner body are tensioning zones, and the middle is the liner area. The liner area is sized to match the inner liner of the vibratory ball mill. A tensioning device is installed on the inner side of the liner body and in the tensioning zone. The two ends of the tensioning device are fixed to two opposite connecting sides of the liner body. The tensioning device is used to adjust the outer diameter of the liner body. In the initial state, under the action of the tensioning device, the two opposite connecting sides of the liner body overlap to form an overlapping area, making the outer diameter of the liner body smaller than the inner diameter of the vibratory ball mill. In the installation state, the tensioning device is loosened, causing the liner body to expand and tighten inside the vibratory ball mill.

[0006] In this embodiment, as one implementation of the tensioning device, the tensioning device includes hinge seats symmetrically fixed on two opposite connecting sides of the liner body. A lead screw is hinged on the hinge seat, and the two lead screws on the two hinge seats are respectively threaded to the two ends of a double-ended nut. The threads at the two ends of the double-ended nut are in opposite directions.

[0007] In this embodiment, one end of the lead screw and the hinge seat are respectively provided with pin holes. The lead screw is installed in the pin hole of the hinge seat by a pin shaft and the pin shaft is locked by a cotter pin.

[0008] In this embodiment, the tensioning area of ​​the liner body has an opening at a position corresponding to the double-ended nut to facilitate the rotation of the double-ended nut.

[0009] In this embodiment, as another implementation of the tensioning device, the tensioning device is a turnbuckle, and the two ends of the turnbuckle are hinged to the inner side of the liner body.

[0010] In this embodiment, the liner body is a liner made of steel plate, preferably 65Mn2 steel plate.

[0011] This utility model also includes a vibratory ball mill, which is equipped with the above-mentioned vibratory ball mill internal expansion integral liner.

[0012] With the above structure, this utility model has the following advantages:

[0013] 1. The liner body of this application is rolled from a single sheet to form an integral design. During installation, in conjunction with a tensioning device, the two opposite connecting sides of the liner body overlap to form a superimposed area, making the outer diameter of the liner body smaller than the inner diameter of the vibratory ball mill. This facilitates the placement of the liner body inside the vibratory ball mill. During installation, the tensioning device tightens the liner body inside the vibratory ball mill, ensuring close contact between the liner body and the inner wall of the vibratory ball mill. This prevents the liner from falling off during ball mill vibration, greatly improving installation efficiency and stability.

[0014] 2. The tensioning device includes a lead screw and a double-ended nut. By rotating the double-ended nut, the lead screws at both ends can be moved closer together, thereby achieving the contraction and tension of the cylindrical liner body, which facilitates the installation of the liner.

[0015] In summary, this utility model achieves one-time installation, greatly improving installation efficiency, reducing downtime, enhancing the wear resistance and stability of the liner, extending the service life of the liner, and reducing maintenance costs. Attached Figure Description

[0016] Figure 1The three-dimensional representation of this utility model Figure 1 .

[0017] Figure 2 The three-dimensional representation of this utility model Figure 2 .

[0018] Figure 3 This is a side view of the present invention.

[0019] Figure 4 This is a perspective view of the tensioning device of this utility model.

[0020] In the attached diagram: 1. Tensioning device; 11. Hinge seat; 12. Cotter pin; 13. Pin shaft; 14. Lead screw; 15. Double-ended nut; 2. Liner body; 21. Overlapping area; 22. Tensioning area. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0023] like Figures 1 to 4 As shown, a vibratory ball mill internal expansion integral liner includes a cylindrical liner body 2 made of rolled steel plate. In this embodiment, the steel plate is 65Mn2 steel plate. The two ends of the cylindrical liner body 2 are tensioning areas 22, and the middle is the liner area. The liner area is matched with the size of the vibratory ball mill liner. A tensioning device 1 is installed on the inner side of the liner body 2 and in the tensioning area 22. The two ends of the tensioning device 1 are fixed on the two opposite connecting sides of the liner body 2. The tensioning device 1 is used to adjust the outer diameter of the cylindrical liner body 2. In the initial state, under the action of the tensioning device 1, the two opposite connecting sides of the liner body 2 overlap to form an overlapping area 21, so that the outer diameter of the liner body 2 is smaller than the inner diameter of the vibratory ball mill. In the installation state, the tensioning device 1 is loosened, so that the liner body 2 is taut and installed in the vibratory ball mill.

[0024] In this embodiment, the tensioning device 1 can be a traditional turnbuckle. By hinged the screws at both ends of the turnbuckle to the two opposite connecting sides of the liner body 2, the cylindrical liner body can be contracted and tightened by rotating the turnbuckle.

[0025] Tensioning device 1 can also be as follows Figure 4 The structure shown includes a tensioning device 1 comprising hinge seats 11 symmetrically fixed on two opposite connecting sides of the liner body 2. A lead screw 14 is hinged to each hinge seat 11. Two lead screws 14 on the two hinge seats 11 are threaded to both ends of a double-ended nut 15. The threads at both ends of the double-ended nut 15 are in opposite directions. One end of each lead screw 14 has a corresponding pin hole on the hinge seat 11, and the other end is threaded to the double-ended nut 15. The lead screw 14 is installed in the pin hole of the hinge seat 11 via a pin shaft 13, and the pin shaft 13 is locked by a cotter pin 12. An opening is provided on the tensioning area 22 of the liner body 2 at a position corresponding to the double-ended nut 15 to facilitate rotation of the double-ended nut 15.

[0026] This utility model also includes a vibratory ball mill, which is equipped with the above-mentioned vibratory ball mill internal expansion integral liner, thereby making the vibratory ball mill convenient to install and maintain, with long service life and low cost.

[0027] The manufacturing process of the liner body 2 of this utility model is as follows: 65Mn2 steel plates conforming to standards are selected, and the steel plates are precisely calculated and cut according to the dimensions of the vibratory ball mill. Using professional plate rolling equipment, the steel plates are rolled into a cylindrical shape to form the liner body. Installation positions for the tensioning device are reserved in the tensioning areas at both ends of the liner body; and openings are cut in the tensioning areas to facilitate the rotation of the double-ended nut 15. The hinge seat of the tensioning device is welded, and the lead screw and nut are assembled into the tensioning device.

[0028] Installation Process: Before installation, first tighten the nuts of the tensioning device to their minimum length, ensuring that the two opposite connecting sides of the liner body 2 overlap. Hoist the liner body 2 into the ball mill and adjust its position to initially align it with the inner wall of the ball mill. Gradually loosen the double-ended nuts 15 of the tensioning device, causing the liner body 2 to tighten outwards under the action of the lead screw until the liner area of ​​the liner body 2 is in full contact and tightly fitted with the inner wall of the ball mill. Check the installation position and tension of the liner to ensure accuracy before completing the installation.

[0029] Maintenance: Regularly inspect the wear of the liners, especially the parts where they come into direct contact with the material and grinding media. Replace the liners promptly when wear becomes so severe that it affects the normal operation of the ball mill. When replacing liners, first tighten the double-ended nut 15 of the tensioning device to separate the liners from the inner wall of the ball mill. Then remove the old liners and install the new liners according to the installation steps.

[0030] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the concept of this utility model and the contents of the specification and drawings of this utility model, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. A type of integral liner for a vibratory ball mill, characterized in that, The liner body (2) is a cylindrical liner body made of a flexible plate. The two ends of the cylindrical liner body (2) are tensioning areas (22) and the middle is the liner area. The liner area is matched with the size of the inner liner of the vibrating ball mill. A tensioning device (1) is installed on the inner side of the liner body (2) and on the tensioning area (22). The two ends of the tensioning device (1) are fixed on the two opposite connecting sides of the liner body (2). The tensioning device (1) is used to adjust the outer diameter of the cylindrical liner body (2). In the initial state, under the action of the tensioning device (1), the two opposite connecting sides of the liner body (2) overlap each other to form an overlapping area (21), so that the outer diameter of the liner body (2) is smaller than the inner diameter of the vibrating ball mill. In the installation state, the tensioning device (1) is loosened, so that the liner body (2) is tightened and installed in the vibrating ball mill.

2. The vibratory ball mill internal expansion integral liner according to claim 1, characterized in that: The tensioning device (1) includes hinge seats (11) symmetrically fixed on two opposite connecting sides of the liner body (2). A screw rod (14) is hinged on the hinge seat (11). The two screw rods (14) on the two hinge seats (11) are respectively threaded to the two ends of the double-ended nut (15). The threads at the two ends of the double-ended nut (15) are in opposite directions.

3. The vibratory ball mill internal expansion integral liner according to claim 2, characterized in that: One end of the lead screw (14) and the hinge seat (11) are respectively provided with pin holes, and the other end is threadedly connected to the double-ended nut (15). The lead screw (14) is installed in the pin hole of the hinge seat (11) through the pin shaft (13) and the pin shaft (13) is locked by the cotter pin (12).

4. The vibratory ball mill internal expansion integral liner according to claim 2, characterized in that: The tensioning area (22) of the liner body (2) has an opening at a position corresponding to the double-ended nut (15) to facilitate the rotation of the double-ended nut (15).

5. The vibratory ball mill internal expansion integral liner according to claim 1, characterized in that: The tensioning device (1) is a turnbuckle, and the two ends of the turnbuckle are hinged to the inside of the liner body (2).

6. The vibratory ball mill internal expansion integral liner according to claim 1, characterized in that: The liner body (2) is a liner made of steel plate.

7. A vibratory ball mill, characterized in that: The vibratory ball mill is equipped with an internal expansion integral liner as described in any one of claims 1-6.

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