A compacting device for a multi-pot vibratory mill

Abstract

The utility model relates to a compression device technical field discloses a compression device of multi -pot vibration mill appearance, including mill appearance body, first compression screw rod and first handle, the middle position of mill appearance body is equipped with first compression screw rod, the below of first compression screw rod is equipped in the inside of screw groove, the inside of mill appearance body is equipped in screw groove, the top of first compression screw rod is equipped with first handle, the outer wall of first compression screw rod is equipped with screw block, the below of screw block is equipped with compression spring, the utility model realizes four steel bowl to press tightly simultaneously, promotes the clamping efficiency to provide mechanical lock through the screw, ensures that steel bowl has no loosening, no displacement, no risk of flinging out under the vibration working condition, and the double compression structure prevents dust from escaping, and accords with laboratory safety specification.

Description

Technical Field

[0001] This utility model relates to the field of clamping device technology, specifically a clamping device for a multi-bowl vibratory mill sample grinder. Background Technology

[0002] Vibratory mills are high-efficiency sample preparation equipment used in laboratories. They are mainly used for the rapid crushing and grinding of hard and brittle materials such as rocks, ores, and coal to meet the needs of precision instrument analysis.

[0003] Traditional clamping devices for multi-bowl vibratory grinders generally suffer from the following problems: First, low clamping efficiency: they mostly use independent manual clamping of each bowl, requiring operation one by one, which is time-consuming and labor-intensive for batch sample processing; second, uneven force: the clamping force of each bowl depends on manual experience, which can easily lead to bowl displacement during vibration and large differences in sample grinding particle size; third, poor stability: rigid connections lack buffering, and under vibration impact, screws are prone to loosening, or even bowls may be thrown out. In order to address the above issues, we propose a clamping device for multi-bowl vibratory grinders. Utility Model Content

[0004] The purpose of this invention is to provide a clamping device for a multi-bowl vibratory mill sample machine to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a clamping device for a multi-bowl vibratory grinding machine, comprising a grinding machine body, a first clamping screw rod, and a first handle. The first clamping screw rod is located in the middle of the grinding machine body, with its lower part located inside a threaded groove. The threaded groove is located inside the grinding machine body. A first handle is installed above the first clamping screw rod. A threaded block is installed on the outer wall of the first clamping screw rod. A compression spring is located below the threaded block, and its lower part is installed above the grinding machine body. Four pressure bars are installed on the outer side of the threaded block, and a connecting plate is installed on the outer side of the pressure bars. A second clamping screw rod is located in the middle of the connecting plate. A second handle is installed above the second clamping screw rod, and a steel bowl is installed below the second clamping screw rod.

[0006] Preferably, the grinding machine body and the threaded groove are integrated, and the threaded groove and the first clamping screw are threadedly connected.

[0007] Preferably, the first clamping screw rod and the first handle are fixedly connected, and the first clamping screw rod and the compression spring are threadedly connected.

[0008] Preferably, the middle position of the compression spring is on the same horizontal line as the middle position of the first clamping screw.

[0009] Preferably, the lower part of the compression spring is fixedly connected to the upper part of the grinding machine body, and the upper part of the compression spring is fixedly connected to the threaded block.

[0010] Preferably, the compression springs are all fixedly connected to the outer wall of the threaded block and the connecting plate, and the four pressure bars are arranged perpendicularly to each other.

[0011] Preferably, the connecting plate and the second clamping screw rod are connected by a thread.

[0012] Preferably, the second clamping screw rod and the second handle are arranged perpendicularly to each other, and the second clamping screw rod is fixedly connected to the steel bowl.

[0013] Preferably, the four steel bowls are symmetrically distributed with the first clamping screw as the center point.

[0014] Preferably, the middle positions of the connecting plate, the second clamping screw rod, the second handle, and the steel bowl are on the same horizontal line.

[0015] Compared with existing technologies, the beneficial effects of this utility model are: The four pressure bars are driven to move synchronously by the central first clamping screw, so that the four steel bowls are clamped at the same time. Compared with the independent operation of a single bowl, the clamping efficiency is improved. The compression spring provides elastic preload, which can absorb vibration and shock, avoid component wear caused by rigid contact, and automatically compensate for the slight displacement of the steel bowls during the grinding process to ensure long-term stability. The threaded connection of the first and second clamping screws provides mechanical locking, ensuring that the steel bowl does not loosen or shift under vibration conditions, and effectively seals to prevent dust from escaping. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In all drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0017] Figure 1 This is a top view of the structure of this utility model; Figure 2 This is a partial top view of the structure of this utility model; Figure 3 This is a partial frontal cross-sectional view of the present invention. Figure 4This is a partial frontal cross-sectional view of the connecting plate of this utility model.

[0018] In the diagram: 1. Grinding machine body; 2. First clamping screw rod; 3. First handle; 4. Threaded block; 5. Compression spring; 6. Pressure bar; 7. Connecting plate; 8. Second clamping screw rod; 9. Second handle; 10. Steel bowl. Detailed Implementation

[0019] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. 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 a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

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

[0022] Please see Figure 1-4This utility model provides a clamping device technical solution for a multi-bowl vibratory grinding machine: A clamping device for a multi-bowl vibratory grinding machine includes a grinding machine body 1, a first clamping screw rod 2, and a first handle 3. The first clamping screw rod 2 is located in the middle of the grinding machine body 1. The lower part of the first clamping screw rod 2 is located inside the threaded groove, which is located inside the grinding machine body 1. The first handle 3 is installed above the first clamping screw rod 2. A threaded block 4 is installed on the outer wall of the first clamping screw rod 2. A compression spring 5 is located below the threaded block 4 and is installed above the grinding machine body 1. Four pressure bars 6 are installed on the outer side of the threaded block 4. A connecting plate 7 is installed on the outer side of the pressure bars 6. A second clamping screw rod 8 is located in the middle of the connecting plate 7. A second handle 9 is installed above the second clamping screw rod 8. A steel bowl 10 is installed below the second clamping screw rod 8.

[0023] The grinding machine body 1 and the threaded groove are integrated, and the threaded groove and the first clamping screw rod 2 are threadedly connected.

[0024] The first clamping screw rod 2 is fixedly connected to the first handle 3, and the first clamping screw rod 2 is threadedly connected to the compression spring 5.

[0025] The middle position of the compression spring 5 is on the same horizontal line as the middle position of the first clamping screw rod 2. The four clamping rods 6 are driven to move synchronously through the central first clamping screw rod 2, so that the four steel bowls 10 are clamped at the same time. Compared with the independent operation of a single bowl, the clamping efficiency is improved.

[0026] The compression spring 5 is fixedly connected to the lower part of the grinding machine body 1 and to the upper part of the compression spring 5 and the threaded block 4. The compression spring 5 provides elastic preload, which can absorb vibration and shock, avoid wear of parts caused by rigid contact, and automatically compensate for the slight displacement of the steel bowl 10 during the grinding process to ensure long-term stability.

[0027] The compression springs 5 ​​are fixedly connected to the outer wall of the threaded block 4 and the connecting plate 7, and the four pressure bars 6 are arranged perpendicularly to each other.

[0028] The connecting plate 7 and the second clamping screw rod 8 are connected by threads.

[0029] The second clamping screw rod 8 and the second handle 9 are arranged perpendicularly to each other, and the second clamping screw rod 8 is fixedly connected to the steel bowl 10.

[0030] The four steel bowls 10 are symmetrically distributed with the first clamping screw rod 2 as the center point, and the pressure bar 6 is arranged in a vertical cross shape to ensure that each steel bowl 10 is subjected to uniform force, avoid the difference in sample grinding particle size caused by unilateral force, and improve the repeatability of experimental data.

[0031] The middle positions of the connecting plate 7, the second clamping screw rod 8, the second handle 9, and the steel bowl 10 are on the same horizontal line.

[0032] Working principle: The user first puts the material to be ground into the steel bowl 10, then places the steel bowl 10 in the corresponding position of the grinding machine body 1. Next, the user manually turns the second handle 9, and through the threaded engagement between the second clamping screw rod 8 and the connecting plate 7, the steel bowl 10 is tightened upwards until it is slightly in contact with the connecting plate 7, thus completing the initial pre-fixing. This step ensures that the steel bowl 10 will not shake or shift significantly during the subsequent overall clamping process, thus improving the stability of the clamping. After pre-fixing is completed, the user turns the first handle 3, which drives the first clamping screw rod 2 to rotate downward along the threaded groove inside the grinding machine body 1. As the first clamping screw rod 2 moves downward, the threaded block 4 on its outer wall also moves downward and compresses the compression spring 5 below. At this time, the compression spring 5 accumulates elastic potential energy, providing a uniform and controllable downward pre-tightening force for the entire structure. At the same time, the four pressure bars 6 on the outside of the threaded block 4 press down synchronously, and the four pre-fixed steel bowls 10 are uniformly pressed and fixed on the grinding machine base by the connecting plate 7.

[0033] Through the above two steps, this invention achieves double clamping. First, the second clamping screw 8 provides initial pre-fixation, followed by the first clamping screw 2 and the compression spring 5 providing final elastic locking. This design not only ensures that the steel bowl 10 does not loosen, shift, or risk being thrown out under vibration conditions, but also that the cushioning effect of the compression spring 5 absorbs vibration impact, protects components from wear, and automatically compensates for any slight displacement that may occur during grinding, thereby ensuring long-term stability and safety, while effectively sealing to prevent dust from escaping.

[0034] Although embodiments of the present utility have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present utility, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A clamping device for a multi-bowl vibratory grinding machine, comprising a grinding machine body (1), a first clamping screw rod (2), and a first handle (3), characterized in that: The grinding machine body (1) has a first clamping screw rod (2) in the middle position. The first clamping screw rod (2) is located inside the threaded groove. The threaded groove is located inside the grinding machine body (1). A first handle (3) is installed above the first clamping screw rod (2). A threaded block (4) is installed on the outer wall of the first clamping screw rod (2). A compression spring (5) is located below the threaded block (4). The compression spring (5) is installed above the grinding machine body (1). Four pressure bars (6) are installed on the outer side of the threaded block (4). A connecting plate (7) is installed on the outer side of the pressure bars (6). A second clamping screw rod (8) is located in the middle position of the connecting plate (7). A second handle (9) is installed above the second clamping screw rod (8). A steel bowl (10) is installed below the second clamping screw rod (8).

2. The clamping device for a multi-bowl vibratory mill according to claim 1, characterized in that: The grinding machine body (1) and the threaded groove are integrated, and the threaded groove and the first clamping screw rod (2) are threadedly connected.

3. The clamping device for a multi-bowl vibratory mill according to claim 2, characterized in that: The first clamping screw rod (2) is fixedly connected to the first handle (3), and the first clamping screw rod (2) is threadedly connected to the compression spring (5).

4. The clamping device for a multi-bowl vibratory mill according to claim 3, characterized in that: The middle position of the compression spring (5) is on the same horizontal line as the middle position of the first clamping screw rod (2).

5. The clamping device for a multi-bowl vibratory mill according to claim 4, characterized in that: The compression spring (5) is fixedly connected to the lower part of the grinding machine body (1) and the upper part of the compression spring (5) is fixedly connected to the threaded block (4).

6. The clamping device for a multi-bowl vibratory mill according to claim 5, characterized in that: The compression springs (5) are all fixedly connected to the outer wall of the threaded block (4) and the connecting plate (7), and the four pressure bars (6) are arranged perpendicularly to each other.

7. The clamping device for a multi-bowl vibratory mill according to claim 6, characterized in that: The connecting plate (7) and the second clamping screw rod (8) are connected by threads.

8. The clamping device for a multi-bowl vibratory mill according to claim 7, characterized in that: The second clamping screw rod (8) and the second handle (9) are arranged perpendicularly to each other, and the second clamping screw rod (8) and the steel bowl (10) are fixedly connected.

9. The clamping device for a multi-bowl vibratory mill according to claim 8, characterized in that: The four steel bowls (10) are symmetrically distributed with the first clamping screw rod (2) as the center point.

10. The clamping device for a multi-bowl vibratory mill according to claim 9, characterized in that: The middle positions of the connecting plate (7), the second clamping screw rod (8), the second handle (9), and the steel bowl (10) are on the same horizontal line.

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