Centrifugal device for centrifugal pelleter and centrifugal pelleter

Abstract

The utility model relates to the technical field of metal sheet manufacturing, in particular to a centrifugal device for a centrifugal pelleter and the centrifugal pelleter, the centrifugal device comprises a supporting piece, a rotating shaft, a centrifugal disc, a rotating joint and a driving mechanism, the supporting piece is provided with a mounting hole, and the middle of the rotating shaft is rotatably mounted in the mounting hole; the centrifugal disc fixedly sleeves the outer side of the upper end of the rotating shaft, a cooling cavity is formed in the centrifugal disc, a liquid through hole communicated with the cooling cavity is formed in the rotating shaft, the rotating joint is mounted at the end part of the upper end of the rotating shaft, and an inner cavity of the rotating joint is communicated with the liquid through hole; the driving mechanism is in transmission connection with the lower end of the rotating shaft to drive the rotating shaft to rotate; due to the fact that the rotating connector and the centrifugal disc are both installed at the upper end of the rotating shaft, the distance between the rotating connector and the centrifugal disc is small, an inner cavity of the rotating connector and a cooling cavity of the centrifugal disc can be communicated only by forming a shallow liquid through hole in the upper portion of the rotating shaft, and the machining difficulty of the liquid through hole is lowered.

Description

Technical Field

[0001] The utility model relates to the technical field of metal sheet manufacturing, in particular to a centrifugal device for a centrifugal tablet making machine and a centrifugal tablet making machine. Background Art

[0002] Centrifugal flaking machines can make metals into thin flakes with a large surface area, which facilitates the dissolution of precious metals during the smelting process and plays an important role in metal purification, especially in the field of precious metal purification.

[0003] The Chinese utility model patent with the authorization announcement number CN220361965U discloses a metal sheet making machine, including a smelting device arranged on the upper part of the frame and a cylinder arranged on the lower part of the frame, wherein a centrifugal device is arranged in the cylinder, and the centrifugal device includes a centrifugal disc, a rotating shaft, a fixed frame and a rotating joint arranged in sequence from top to bottom. Since the centrifugal disc needs to absorb the heat carried by the molten metal during operation, it is necessary to dissipate heat from the centrifugal disc. The heat dissipation scheme is to provide a heat dissipation cavity for passing coolant inside the centrifugal disc, and to provide a liquid through hole connected to the heat dissipation cavity in the axial direction of the rotating shaft. The rotating joint is rotatably connected to the lower end of the rotating shaft, and the inner cavity of the rotating joint is connected to the liquid through hole. When the rotating shaft rotates, the rotating joint remains fixed, and the liquid cooling heat dissipation of the centrifugal disc is realized by passing coolant into the inner cavity of the rotating joint. Since the rotating joint is connected to the lower end of the rotating shaft, it is impossible to set a coupling at the lower end of the rotating shaft, and it is necessary to fix a pulley on the outer side of the rotating shaft to drive the centrifugal disc to rotate by belt transmission. The rotary joint and the centrifugal disk are respectively arranged at the two ends of the rotating shaft, and the bearing seat and the pulley need to be installed in the middle of the outer side of the rotating shaft. Therefore, the rotating shaft needs to be arranged longer, and a liquid through hole passing through the rotating shaft needs to be arranged in the middle of the rotating shaft. The depth of the liquid through hole is deep, and the processing of the liquid through hole is difficult. Utility Model Content

[0004] The technical problem to be solved by the utility model is that in the existing centrifugal device for centrifugal tablet making machine, the rotary joint and the centrifugal disk are respectively arranged at the two ends of the rotating shaft, the rotating shaft needs to be arranged longer, and a liquid through hole penetrating the rotating shaft is arranged in the rotating shaft. The depth of the liquid through hole is deep, and the processing difficulty of the liquid through hole is large.

[0005] In order to solve the above technical problems, the utility model provides a centrifugal device for a centrifugal tablet making machine, comprising:

[0006] A support member, wherein the support member has a mounting hole;

[0007] A rotating shaft, a middle portion of which is rotatably mounted in the mounting hole;

[0008] A centrifugal disc, wherein the centrifugal disc is fixedly sleeved on the outer side of the upper end of the rotating shaft, a cooling cavity is provided in the centrifugal disc, and a liquid through hole communicating with the cooling cavity is provided inside the rotating shaft;

[0009] A rotary joint, which is installed at the upper end of the rotating shaft, and the inner cavity of the rotary joint is communicated with the liquid through hole;

[0010] A driving mechanism, which is fixed at the lower end of the support member, and the driving mechanism is in transmission connection with the lower end of the rotating shaft to drive the rotating shaft to rotate.

[0011] As a preferred solution, the driving mechanism includes a coupling connected to the lower end of the rotating shaft and a driving motor fixed at the lower end of the support member, and the output shaft of the driving motor is connected to the coupling.

[0012] As a preferred solution, the support member includes a support member body and a bearing seat connected to the support member body, and the inner hole of the bearing seat forms the mounting hole.

[0013] As a preferred solution, the outside of the support member is covered with a first protective cover, and the upper part of the first protective cover protrudes upward in a roof shape.

[0014] As a preferred solution, the outside of the driving mechanism is covered with a second protective cover.

[0015] As a preferred solution, the centrifugal disk is a truncated cone with the tip facing upward.

[0016] As a preferred solution, the material of the centrifugal disk is copper or copper alloy.

[0017] A centrifugal tablet press, including the centrifugal device for the centrifugal tablet press as described above.

[0018] Compared with the prior art, the centrifugal device for a centrifugal tablet press in an embodiment of the present invention has the following beneficial effects: The centrifugal device for a centrifugal tablet press of the present invention includes a support member, a rotating shaft, a centrifugal disk, a rotary joint and a driving mechanism. The support member has a mounting hole, the middle part of the rotating shaft is rotatably installed in the mounting hole, the centrifugal disk is fixedly sleeved on the outer side of the upper end of the rotating shaft, a cooling cavity is provided in the centrifugal disk, a liquid through hole communicated with the cooling cavity is provided inside the rotating shaft, the rotary joint is installed at the upper end of the rotating shaft, the inner cavity of the rotary joint is communicated with the liquid through hole, and the driving mechanism is fixed at the lower end of the support member and is in transmission connection with the lower end of the rotating shaft to drive the rotating shaft to rotate; Since both the rotary joint and the centrifugal disk are installed at the upper end of the rotating shaft, the distance between the rotary joint and the centrifugal disk is relatively close, and only a relatively shallow liquid through hole needs to be provided in the upper part of the rotating shaft to communicate the inner cavity of the rotary joint and the cooling cavity of the centrifugal disk, reducing the processing difficulty of the liquid through hole; Moreover, since the rotary joint does not need to be connected to the lower end of the rotating shaft, more implementation methods of the driving mechanism can be selected, the total length of the rotating shaft can be shortened, and the processing difficulty of the rotating shaft can be reduced. Description of the Drawings

[0019] Figure 1It is a schematic structural diagram of the centrifugal device for the centrifugal tablet machine of the present utility model before installing the second protective cover;

[0020] Figure 2 For Figure 1 It is a partially enlarged view at position C in

[0021] Figure 3 It is a schematic structural diagram of the centrifugal device for the centrifugal tablet machine of the present utility model after installing the second protective cover;

[0022] In the figure, 1 is a support member, 11 is a support member body, 12 is a bearing seat, 2 is a rotating shaft, 3 is a centrifugal disc, 4 is a rotary joint, 51 is a coupling, 52 is a driving motor, 61 is a first protective cover, 62 is a second protective cover, 7 is a mounting bracket, and 71 is a mounting portion. Specific embodiments

[0023] The following will further describe in detail the specific embodiments of the present utility model in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the present utility model, but are not intended to limit the scope of the present utility model.

[0024] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "top", "bottom", etc. is based on the orientation or positional relationship shown in the drawings, and 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 of the present utility model. It should be understood that the present utility model uses the terms "first", "second", etc. to describe various information, but these information should not be limited to these terms, and these terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present utility model, "first" information can also be referred to as "second" information, and similarly, "second" information can also be referred to as "first" information.

[0025] As Figures 1 to 3 shown, a preferred embodiment of the centrifugal device for the centrifugal tablet machine of the present utility model includes a support member 1, a rotating shaft 2, a centrifugal disc 3, a rotary joint 4, and a driving mechanism;

[0026] The support member 1 serves as a mounting base for mounting other components of the centrifugal device for the centrifugal tablet machine in this embodiment, and the support member 1 has a mounting hole;

[0027] The middle part of the rotating shaft 2 is rotatably mounted in the mounting hole; the rotating shaft 2 is vertically arranged, the upper end of the rotating shaft 2 extends upward above the support member 1, and the lower end of the rotating shaft 2 extends downward below the support member 1;

[0028] The centrifugal disk 3 is fixedly sleeved on the outer side of the upper end of the rotating shaft 2. A cooling cavity is provided in the centrifugal disk 3, and a liquid through hole communicating with the cooling cavity is provided inside the rotating shaft 2. The upper end surface of the centrifugal disk 3 is used to receive the molten metal dropped by the melting device of the tablet press, and the molten metal dropped on the upper end surface of the centrifugal disk 3 is thrown off the centrifugal disk 3 at a high speed.

[0029] The rotary joint 4 is installed at the upper end of the rotating shaft 2. The inner cavity of the rotary joint 4 communicates with the liquid through hole. The rotary joint 4 is a pipeline connection device, and the pipeline connected to the rotary joint 4 can rotate along its own axis relative to the rotary joint 4. In this embodiment, the used rotary joint 4 is in accordance with the national standard JB / T 8725-2013, and the connection method between the rotary joint 4 and the rotating shaft 2 is the same as the connection method of the pipeline of the rotary joint 4.

[0030] The driving mechanism is fixed to the lower end of the support 1, and the driving mechanism is in transmission connection with the lower end of the rotating shaft 2 to drive the rotating shaft 2 to rotate.

[0031] Since both the rotary joint 4 and the centrifugal disk 3 are installed at the upper end of the rotating shaft, the distance between the rotary joint 4 and the centrifugal disk 3 is relatively close. Only a relatively shallow liquid through hole needs to be provided in the upper part of the rotating shaft to connect the inner cavity of the rotary joint 4 and the cooling cavity of the centrifugal disk 3, reducing the processing difficulty of the liquid through hole. Moreover, since the lower end of the rotating shaft 2 no longer needs to be connected to the rotary joint 4, there are more implementation methods for the driving mechanism to choose from, the total length of the rotating shaft 2 can be shortened, and the processing difficulty of the rotating shaft 2 can be reduced.

[0032] In this embodiment, the driving mechanism includes a coupling 51 connected to the lower end of the rotating shaft 2 and a driving motor 52 fixed to the lower end of the support 1. The output shaft of the driving motor 52 is connected to the coupling 51. Since the lower end of the rotating shaft 2 is no longer connected to the rotary joint 4, only the lower end of the rotating shaft 2 needs to protrude slightly from the lower end of the support 1, shortening the total length of the rotating shaft 2, facilitating the guarantee of the straightness of the rotating shaft 2, and reducing the processing difficulty of the rotating shaft 2. The lower end of the rotating shaft 2 is connected to the output shaft of the driving motor 52 through the coupling 51. Using the coupling 51 to connect the driving motor 52 and the rotating shaft 2 not only improves the transmission accuracy and transmission efficiency and increases the rotation speed of the centrifugal disk 3 compared with the belt drive method, but also avoids the bending moment applied to the rotating shaft 2 by the belt pulley during belt drive. In addition, since the liquid through hole only needs to be provided in the upper part of the rotating shaft 2 and the lower part of the rotating shaft 2 is a solid structure, the strength of the rotating shaft 2 is ensured. In other embodiments of the present invention, the driving mechanism can adopt a gear drive or a belt drive method.

[0033] In this embodiment, the support member 1 includes a support member body 11 and a bearing seat 12 connected to the support member body 11. The inner hole of the bearing seat 12 forms a mounting hole. Specifically, the support member body 11 is a plate body, and a first through hole penetrating the plate body vertically is provided in the middle of the plate body. The bearing seat 12 is fixedly connected to the upper end of the plate body by a fastener. The bearing hole of the bearing seat 12 is coaxially arranged with the first through hole, and the first through hole serves to allow the rotating shaft 2 to pass downward through the plate body. Among them, to facilitate the installation of the driving motor 52, in this embodiment, a mounting frame 7 is fixed to the lower end of the plate body. The mounting frame 7 has a mounting portion 71 located below the first through hole, and the driving motor 52 is fixed to the mounting portion 71.

[0034] The metal flakes formed by the centrifugal sheet-making machine are in a discontinuous fragment structure. The metal flakes processed by the centrifugal sheet-making machine are mostly precious metals. To prevent the fragmented precious metal flakes from not sliding smoothly after falling on the support member 1, in this embodiment, a first protective cover 61 is provided outside the support member 1, and the upper part of the first protective cover 61 protrudes upward in a roof shape. The fragmented precious metal flakes can slide smoothly to the lower part of the support member 1 through the upper roof-shaped structure of the first protective cover 61, and there is no need for manual cleaning of the residual precious metal flakes on the support member 1.

[0035] Furthermore, a second protective cover 62 is provided outside the driving mechanism. The second protective cover 62 can prevent the fragmented precious metal flakes from falling into the driving mechanism, affecting the smooth operation of the driving mechanism, and avoid the cleaning work caused by the precious metal flakes falling into the driving mechanism.

[0036] In this embodiment, the centrifugal disk 3 is a truncated cone with the tip facing upward. The conical surface of the truncated cone is arranged upward and is used to receive the molten metal. A second through hole coaxial with the truncated cone is provided in the middle of the truncated cone, and the rotating shaft 2 is fixedly inserted through the second through hole.

[0037] Existing centrifugal disks 3 are mostly made of graphite. Graphite is prone to wear and needs to be replaced frequently. Moreover, multiple metal sheets are likely to adhere to each other on the graphite disk. In this embodiment, the material of the centrifugal disk 3 is copper or copper alloy. Copper and copper alloys have better wear resistance, better heat dissipation performance, and good cooling effect. Multiple metal sheets will not adhere to each other on the copper disk, and multiple metal sheets are arranged dispersedly without adhesion, which improves the melting speed of the metal sheets in the reaction kettle and improves the production efficiency; moreover, the copper disk does not need to be replaced frequently, reducing the maintenance and operation costs of the centrifugal device and the processing cost of the metal sheets.

[0038] An embodiment of a centrifugal tablet making machine includes the centrifugal device for the centrifugal tablet making machine described above; specifically, the centrifugal tablet making machine also includes a furnace device and a cylinder, the centrifugal device for the tablet making machine is fixed in the cylinder cavity of the cylinder, the molten metal outlet of the furnace device and the conical surface of the centrifugal disk 3 are arranged relative to each other up and down, the molten metal dripping from the liquid outlet of the smelting device falls on the conical surface, and under the centrifugal action of the centrifugal disk 3, it separates from the centrifugal disk 3 and is thrown onto the inner wall of the cylinder, collides with the inner wall of the cylinder to form a metal sheet; a liquid supply pipe is provided on the upper part of the cylinder, and the liquid supply pipe is connected to the rotary joint 4 to realize the delivery of the cooling liquid.

[0039] In summary, the centrifugal device for centrifugal tablet making machine of the utility model comprises a support member 1, a rotating shaft 2, a centrifugal disc 3, a rotary joint 4 and a driving mechanism, wherein the support member 1 has a mounting hole, the middle part of the rotating shaft 2 is rotatably mounted in the mounting hole, the centrifugal disc 3 is fixedly sleeved on the outer side of the upper end of the rotating shaft 2, a cooling cavity is provided in the centrifugal disc 3, a liquid through hole connected to the cooling cavity is provided inside the rotating shaft 2, the rotary joint 4 is installed at the upper end of the rotating shaft 2, the inner cavity of the rotary joint 4 is connected to the liquid through hole, the driving mechanism is fixed at the lower end of the support member 1, and the driving mechanism is connected to the rotating shaft 2 is connected to the lower end of the rotating shaft 2 to drive the rotating shaft 2 to rotate; since the rotating joint 4 and the centrifugal disk 3 are both installed at the upper end of the rotating shaft, the distance between the rotating joint 4 and the centrifugal disk 3 is relatively close, and only a shallow liquid through hole needs to be provided on the upper part of the rotating shaft to connect the inner cavity of the rotating joint 4 and the cooling cavity of the centrifugal disk 3, which reduces the difficulty of processing the liquid through hole; and the lower end of the rotating shaft 2 no longer needs to be connected to the rotating joint 4, so more implementation methods of the driving mechanism can be selected, the total length of the rotating shaft 2 can be shortened, and the difficulty of processing the rotating shaft 2 is reduced.

[0040] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principle of the present invention. These improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A centrifugal device for a centrifugal tablet making machine, characterized in that: include: A support member (1), wherein the support member (1) has a mounting hole; A rotating shaft (2), the middle portion of the rotating shaft (2) being rotatably mounted in the mounting hole; A centrifugal disc (3), the centrifugal disc (3) being fixedly sleeved on the outer side of the upper end of the rotating shaft (2), the centrifugal disc (3) being provided with a cooling cavity, and the rotating shaft (2) being provided with a liquid through hole in communication with the cooling cavity; A rotary joint (4), the rotary joint (4) being mounted on the upper end of the rotating shaft (2), the inner cavity of the rotary joint (4) being in communication with the liquid through hole; A driving mechanism is fixed to the lower end of the support member (1), and the driving mechanism is in driving connection with the lower end of the rotating shaft (2) to drive the rotating shaft (2) to rotate.

2. The centrifugal device for centrifugal tablet making machine according to claim 1, characterized in that: The driving mechanism comprises a coupling (51) connected to the lower end of the rotating shaft (2) and a driving motor (52) fixed to the lower end of the supporting member (1), and an output shaft of the driving motor (52) is connected to the coupling (51).

3. The centrifugal device for centrifugal tablet making machine according to claim 1, characterized in that: The support member (1) comprises a support member body (11) and a bearing seat (12) connected to the support member body (11), and the inner hole of the bearing seat (12) forms the mounting hole.

4. The centrifugal device for centrifugal tablet making machine according to claim 1, characterized in that: The outer cover of the support member (1) is provided with a first protective cover (61), and the upper part of the first protective cover (61) is convex upward in a ridge shape.

5. The centrifugal device for centrifugal tablet making machine according to claim 1, characterized in that: The outer side cover of the driving mechanism is provided with a second protective cover (62).

6. The centrifugal device for centrifugal tablet making machine according to claim 1, characterized in that: The centrifugal disc (3) is a truncated cone with the tip facing upward.

7. The centrifugal device for centrifugal tablet making machine according to claim 1, characterized in that: The centrifugal disc (3) is made of copper or copper alloy.

8. A centrifugal tablet making machine, characterized in that: A centrifugal device for a centrifugal tablet making machine comprising any one of claims 1 to 7.

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