Elastic supporting mechanism for vibrating ball mill

Abstract

The utility model relates to the technical field of ball mills, in particular to an elastic supporting mechanism for a vibrating ball mill, which comprises a vibrating bedplate and a support, the vibrating bedplate is movably connected with a milling cylinder, and a first moving space for the milling cylinder to rotate is arranged on the vibrating bedplate. The bracket is provided with a second moving space for the milling cylinder to rotate, and the first moving space is communicated with the second moving space; a vibration table plate elastic supporting assembly is arranged between the vibration table plate and the support and used for achieving elastic connection between the vibration table plate and the support. The elastic supporting mechanism not only is simple in structure and compact in layout, but also can assist in stable discharging while effectively improving the vibration grinding effect.

Description

Technical Field

[0001] This utility model relates to the field of ball mill technology, and in particular to an elastic support mechanism for a vibratory ball mill. Background Technology

[0002] A vibratory ball mill is a high-efficiency pulverizing device that uses high-frequency vibration to drive grinding media to impact, rub, and shear materials. It mainly consists of a frame, vibrator (including an eccentric block or vibratory motor), grinding jar (cylinder), cooling system, grinding media (steel balls, steel rods, etc.), and control system. The vibratory motor or eccentric block drives the grinding jar to generate high-frequency vibration (typically 16-20 Hz, amplitude 7-14 mm), causing the grinding media to collide violently with the material, achieving a combined effect of impact, compression, and friction. The vibration energy transfer efficiency is 2-5 times that of traditional ball mills, making it particularly suitable for preparing micron- to nano-scale ultrafine powders.

[0003] Chinese utility model patent CN222240558U discloses a horizontal vibrating ball mill, including a frame, a barrel body, and a motor mounted on the frame. The barrel body is placed horizontally and positioned above the frame. A rotating shaft is horizontally inserted into the barrel body, with its two ends extending out of the barrel body and connected to corresponding bearings, and mounted on a support frame located above the frame. The motor is horizontally positioned on the other side of the frame, and the motor is connected to the rotating shaft via a transmission structure. A bidirectional buffer unit is installed between the support frame and the frame. This utility model mounts the barrel body on the frame via a support frame and installs a bidirectional buffer unit between the support frame and the frame. This facilitates the absorption of vibrations and displacements generated during the ball mill's vibration process, providing timely buffering and stabilizing of the barrel body and the connection strength between the barrel body and the transmission structure and motor, ensuring stable operation of the ball mill and improving production efficiency.

[0004] In the above scheme, vibration reduction is achieved through a bidirectional buffer unit between the support frame and the machine frame. While this structure can effectively buffer and stabilize the barrel and the connection strength between the barrel and the transmission structure and motor, ensuring stable operation of the ball mill, the core working principle of a vibratory ball mill is to transmit energy to crush materials through high-frequency vibration (1000-3000 times / minute) and a specific amplitude (2-4mm). The vertical spring design is mainly to match the vibration requirements in the vertical direction, while the introduction of a horizontal spring will change the overall stiffness of the system, potentially disrupting the original balance of vibration frequency and amplitude. For example, if the stiffness of the horizontal spring does not match that of the vertical spring, it will cause the vibration trajectory to deviate from the design direction, reducing energy transmission efficiency and even causing resonance risks. In addition, the energy transmission of the vibratory ball mill is asymmetrically distributed, mainly concentrated in the lower edge area of ​​the barrel, while the upper and middle parts are prone to forming low-energy zones. The constraint of the horizontal spring may restrict the horizontal degree of freedom of the barrel, exacerbating the unevenness of energy distribution, making it difficult for the material to fully participate in vibration in the horizontal direction, resulting in a decrease in crushing efficiency.

[0005] On the other hand, when the grinding cylinder is rotating and discharging material, if it is only supported by the buffer unit between the vibrating table and the direct shaft, the grinding cylinder is in a suspended state. During the discharge process, it is very easy to be affected by the discharge of internal material, causing vibration or slight displacement, which in turn affects the discharge effect. For example, the material should be accurately discharged into the collection bucket corresponding to the discharge port.

[0006] Therefore, a new technical solution is urgently needed to solve the above-mentioned technical problems. Utility Model Content

[0007] The purpose of this utility model is to overcome the problems of the prior art and provide an elastic support mechanism for a vibratory ball mill. This mechanism addresses the technical problems of existing technologies where the use of horizontal springs restricts the horizontal freedom of the cylinder, exacerbates the uneven distribution of energy, makes it difficult for materials to fully participate in vibration in the horizontal direction, and leads to a decrease in crushing efficiency; and the lack of support at the inlet and outlet ports during discharge makes them highly susceptible to vibration or slight displacement due to the discharge of internal materials, thus affecting the discharge effect.

[0008] The above objectives are achieved through the following technical solutions:

[0009] An elastic support mechanism for a vibratory ball mill includes a vibrating table and a support. The vibrating table is movably connected to the grinding cylinder and has a first movable space for the grinding cylinder to rotate. The support has a second movable space for the grinding cylinder to rotate. The first movable space and the second movable space are interconnected. An elastic support assembly for the vibrating table is provided between the vibrating table and the support to achieve an elastic connection between the vibrating table and the support.

[0010] Furthermore, the grinding cylinder includes at least one inlet / outlet port, and a grinding cylinder elastic support assembly is provided below the second active space to provide elastic support for the inlet / outlet port during material discharge.

[0011] Furthermore, the grinding cylinder elastic support assembly includes a vertically arranged upper support plate, a middle support plate, and a lower support plate. The upper support plate, the middle support plate, and the lower support plate each have an upper support plate through hole, a middle support plate through hole, and a lower support plate through hole at their respective axial positions. These through holes are coaxial. The upper support plate and the middle support plate are connected by a support plate elastic support assembly. The middle support plate and the lower support plate are connected by a support plate column. The lower support plate is connected by a grinding cylinder support beam mounted on the bracket.

[0012] Furthermore, the surface of the upper support plate is provided with an annular upper flange corresponding to the through hole of the upper support plate, and the bottom surface of the upper support plate is provided with an annular lower flange corresponding to the through hole of the upper support plate.

[0013] Furthermore, the upper support plate includes right-angle flanges with downward openings symmetrically arranged on both sides, the middle support plate includes right-angle flanges with upward openings symmetrically arranged on both sides, and the support plate elastic support assembly is disposed between the right-angle flanges of the upper support plate and the right-angle flanges of the middle support plate.

[0014] Furthermore, the tray elastic support assembly includes an upper tray spring support connected to the right-angle flange of the upper tray and a middle tray spring support connected to the right-angle flange of the middle tray, and the connection is achieved through tray springs.

[0015] Furthermore, the vibration table plate elastic support assembly includes an upper connecting portion disposed on the bottom surface of the vibration table plate and a lower connecting portion disposed on the surface of the support, wherein the upper connecting portion and the lower connecting portion are connected by an elastic component.

[0016] Furthermore, the upper connecting part is an upper spring sleeve post disposed on the bottom surface of the vibration table plate, the lower connecting part is a lower spring sleeve post disposed on the surface of the bracket, and the elastic component is a spring disposed between the upper spring sleeve post and the lower spring sleeve post.

[0017] Furthermore, the upper connecting part is an upper air spring connecting seat disposed on the bottom surface of the vibration table plate, the lower connecting part is a lower air spring connecting seat disposed on the surface of the bracket, and the elastic component is an air spring disposed between the upper air spring connecting seat and the lower air spring connecting seat.

[0018] Furthermore, the upper connecting part is an upper rubber spring connecting seat disposed on the bottom surface of the vibration table plate, the lower connecting part is a lower rubber spring connecting seat disposed on the surface of the bracket, and the elastic component is a rubber spring disposed between the upper rubber spring connecting seat and the lower rubber spring connecting seat.

[0019] This utility model provides an elastic support mechanism for a vibratory ball mill. The vibrating table provides movable support for the grinding cylinder, and the elastic support assembly of the vibrating table provides a longitudinal elastic connection between the vibrating table and the support frame, thus reducing vibration and improving the grinding efficiency of the grinding cylinder. Furthermore, the elastic support assembly of the grinding cylinder provides elastic support for the inlet and outlet ports of the grinding cylinder during discharge, better assisting in material discharge. This elastic support mechanism is not only simple in structure and compact in layout, effectively improving the vibratory grinding effect, but also assists in stable material discharge. Attached Figure Description

[0020] Figure 1 This is a first-view structural schematic diagram of an elastic support mechanism for a vibratory ball mill according to the present invention;

[0021] Figure 2 This is a second-view structural schematic diagram of an elastic support mechanism for a vibratory ball mill according to the present invention;

[0022] Figure 3 This is a third-view structural schematic diagram of an elastic support mechanism for a vibratory ball mill according to the present invention.

[0023] Figure 4 This is a schematic diagram of the elastic support mechanism for a vibratory ball mill described in this utility model, in the discharge state connected to the grinding cylinder;

[0024] Figure 5 This is a first-view structural schematic diagram of the elastic support assembly of the grinding cylinder in the elastic support mechanism for a vibratory ball mill according to the present invention;

[0025] Figure 6 This is a second-view structural schematic diagram of the elastic support assembly of the grinding cylinder in the elastic support mechanism for a vibratory ball mill according to the present invention;

[0026] Figure 7 This is an exploded view of the elastic support assembly of the grinding cylinder in the elastic support mechanism for a vibratory ball mill described in this utility model.

[0027] Illustration markings:

[0028] 1-Vibration table, 101-First active space;

[0029] 2-Support, 201-Second activity space;

[0030] 3-Grinding cylinder, 301-Inlet / outlet ports;

[0031] 4-Vibration table elastic support assembly, 401-Upper connecting part, 402-Lower connecting part, 403-Elastic component;

[0032] 5-Grinding cylinder elastic support assembly, 501-Upper support plate, 502-Middle support plate, 503-Lower support plate, 504-Upper support plate through hole, 505-Middle support plate through hole, 506-Lower support plate through hole, 507-Support plate elastic support assembly, 508-Upper support plate spring support, 509-Middle support plate spring support, 510-Support plate spring, 511-Worm gear, 512-Annular upper flange, 513-Annular lower flange, 514-Upper support plate right angle flange, 515-Middle support plate right angle flange;

[0033] 6-Grinding cylinder support beam. Detailed Implementation

[0034] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. The described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0035] like Figures 1-4 As shown, this solution provides an elastic support mechanism for a vibratory ball mill, including a vibratory table 1 and a support 2. The vibratory table 1 is movably connected to the grinding cylinder 3, and a first movable space 101 for the grinding cylinder 3 to rotate is provided on the vibratory table 1. A second movable space 201 for the grinding cylinder 3 to rotate is provided on the support 2. The first movable space 101 and the second movable space 201 are interconnected.

[0036] An elastic support assembly 4 is provided between the vibrating table 1 and the support 2 to achieve an elastic connection between the vibrating table 1 and the support 2. Through multiple mechanisms such as directional energy transfer, vibration isolation, and dynamic balance, the crushing efficiency of the vibrating ball mill is improved.

[0037] The vibration table plate elastic support component 4 described in this embodiment can also reduce the vibration transmission of the vibration table plate to the support during operation, ensure the stable support of the support, and reduce the vibration impact on the ground.

[0038] Specifically, the elastic support assembly 4 of the vibration table plate is located between the vibration table and the equipment support, and is a multi-directional buffer system composed of high-damping springs; it adopts a progressive spring stiffness design, which can absorb energy of different amplitudes in stages. It also has the following functions during operation:

[0039] (1) It can attenuate the 30-50Hz high-frequency mechanical shock generated by the vibration table to below 5Hz;

[0040] (2) It can reduce the vibration transmission rate by up to 85%, effectively protecting the equipment foundation structure;

[0041] (3) Through dynamic balance adjustment, ensure that the vibration energy is directed to the grinding medium;

[0042] (4) It can extend the service life of motor bearings by about 40% (compared to rigid support).

[0043] like Figure 4 As shown, in this embodiment, the grinding cylinder 3 includes at least one inlet / outlet port 301, and a grinding cylinder elastic support component 5 is provided below the second active space 201 to provide elastic support for the inlet / outlet port 301 during material discharge, so as to better assist material discharge and ensure that the grinding cylinder will not shift and cause material spillage.

[0044] Specifically, the grinding cylinder elastic support assembly 5 described in this embodiment has the following functions:

[0045] (1) It can suppress random vibrations with an amplitude of 2-5mm caused by material flow during the discharge process;

[0046] (2) It can ensure that the discharge flow rate is stable within ±5% error range;

[0047] (3) It can prevent wear and leakage of the seal due to vibration (increases the seal life by 3 times);

[0048] (4) Avoid resonance with the main vibration system by frequency decoupling design.

[0049] like Figures 5-6 As shown, the grinding cylinder elastic support assembly 5 includes a vertically arranged upper support plate 501, a middle support plate 502, and a lower support plate 503. The upper support plate 501, the middle support plate 502, and the lower support plate 503 are respectively provided with an upper support plate through hole 504, a middle support plate through hole 505, and a lower support plate through hole 506 at their axial positions. The upper support plate through hole 504, the middle support plate through hole 505, and the lower support plate through hole 506 are coaxial, so that the material in the grinding cylinder is poured out through the inlet / outlet port 301 and falls into the lower collection bucket in sequence through the upper support plate through hole 504, the middle support plate through hole 505, and the lower support plate through hole 506.

[0050] The upper support plate 501 and the middle support plate 502 are connected by the support plate elastic support assembly 507, so that the upper support plate can provide elastic support for the inlet and outlet ports of the grinding cylinder during material discharge.

[0051] The middle support plate 502 and the lower support plate 503 are connected by a support plate support column 511;

[0052] The lower support plate 503 is connected to the grinding cylinder support beam 6 mounted on the bracket 2.

[0053] Specifically, such as Figure 7 As shown, the surface of the upper support plate 501 is provided with an annular upper flange 512 corresponding to the upper support plate through hole 504, and the bottom surface of the upper support plate 501 is provided with an annular lower flange 513 corresponding to the upper support plate through hole 504; the annular upper flange 512 can support the inlet and outlet port 301 of the grinding cylinder 3, and the annular lower flange 513 can penetrate the middle support plate through hole 505 under the pressure of the grinding cylinder 3.

[0054] The upper support plate 501 includes right-angle flanges 514 with downward openings symmetrically arranged on both sides, and the middle support plate 502 includes right-angle flanges 515 with upward openings symmetrically arranged on both sides. The elastic support assembly 507 is disposed between the right-angle flanges 514 and the right-angle flanges 515 of the upper support plate, realizing an elastic connection between the upper support plate 501 and the middle support plate 502, thereby realizing elastic support for the grinding cylinder 3 during material discharge.

[0055] like Figure 3 As shown, the tray elastic support assembly 507 in this embodiment includes an upper tray spring support 508 connected to the right-angle flange 514 of the upper tray and a middle tray spring support 509 connected to the right-angle flange 515 of the middle tray, and the connection is achieved through a tray spring 510.

[0056] As a specific embodiment of this solution, there are four pallet spring support assemblies 507, which are symmetrically arranged between the right-angle flange 514 of the upper pallet and the right-angle flange 509 of the middle pallet to form a stable support.

[0057] Specifically, the vibration table plate elastic support assembly 4 includes an upper connecting part 401 disposed on the bottom surface of the vibration table plate 1 and a lower connecting part 402 disposed on the surface of the bracket 2. The upper connecting part 401 and the lower connecting part 402 are connected by an elastic member 403.

[0058] As a first structure of the elastic support assembly 507 for the support plate in this solution, the upper connecting part 401 is an upper spring sleeve post disposed on the bottom surface of the vibration table plate 1, the lower connecting part 402 is a lower spring sleeve post disposed on the surface of the bracket 2, and the elastic component 403 is a spring disposed between the upper spring sleeve post and the lower spring sleeve post, with the upper and lower ends of the spring respectively sleeved with the upper spring sleeve post and the lower spring sleeve post. It should be noted that in this connection state, the upper spring sleeve post and the lower spring sleeve post do not come into contact.

[0059] As a second structure of the elastic support assembly 507 of the support plate in this solution, the upper connecting part 401 is an upper air spring connecting seat disposed on the bottom surface of the vibration table plate 1, the lower connecting part 402 is a lower air spring connecting seat disposed on the surface of the bracket 2, the elastic component 403 is an air spring disposed between the upper air spring connecting seat and the lower air spring connecting seat, and the upper connecting plate and the lower connecting plate of the air spring are respectively connected to the upper air spring connecting seat and the lower air spring connecting seat.

[0060] As the third structure of the elastic support assembly 507 of the pallet in this solution, the upper connecting part 401 is an upper rubber spring connecting seat disposed on the bottom surface of the vibration table plate 1, the lower connecting part 402 is a lower rubber spring connecting seat disposed on the surface of the bracket 2, and the elastic component 403 is a rubber spring disposed between the upper rubber spring connecting seat and the lower rubber spring connecting seat. The top and bottom of the rubber spring are respectively connected to the upper rubber spring connecting seat and the lower rubber spring connecting seat.

[0061] The above description is only for illustrating the embodiments of this utility model and is not intended to limit this utility model. For those skilled in the art, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An elastic support mechanism for a vibratory ball mill, comprising a vibratory table (1) and a support (2), characterized in that, The vibration table (1) is movably connected to the grinding cylinder (3), and a first movable space (101) for the grinding cylinder (3) to rotate is provided on the vibration table (1), and a second movable space (201) for the grinding cylinder (3) to rotate is provided on the support (2), and the first movable space (101) and the second movable space (201) are interconnected; An elastic support assembly (4) for the vibration table (1) and the support (2) is provided to achieve an elastic connection between the vibration table (1) and the support (2).

2. The elastic support mechanism for a vibratory ball mill according to claim 1, characterized in that, The grinding cylinder (3) includes at least one inlet / outlet port (301), and a grinding cylinder elastic support assembly (5) is provided below the second active space (201) to provide elastic support for the inlet / outlet port (301) during discharge.

3. The elastic support mechanism for a vibratory ball mill according to claim 2, characterized in that, The grinding cylinder elastic support assembly (5) includes a vertically arranged upper support plate (501), a middle support plate (502), and a lower support plate (503). The upper support plate (501), the middle support plate (502), and the lower support plate (503) are respectively provided with an upper support plate through hole (504), a middle support plate through hole (505), and a lower support plate through hole (506) at their axial positions. The upper support plate through hole (504), the middle support plate through hole (505), and the lower support plate through hole (506) are coaxial. The upper support plate (501) and the middle support plate (502) are connected by a support plate elastic support assembly (507); The middle support plate (502) and the lower support plate (503) are connected by a support plate support column (511); The lower support plate (503) is connected to the grinding cylinder support beam (6) set on the bracket (2).

4. The elastic support mechanism for a vibratory ball mill according to claim 3, characterized in that, The surface of the upper support plate (501) is provided with an annular upper flange (512) corresponding to the upper support plate through hole (504), and the bottom surface of the upper support plate (501) is provided with an annular lower flange (513) corresponding to the upper support plate through hole (504).

5. An elastic support mechanism for a vibratory ball mill according to claim 3 or 4, characterized in that, The upper support plate (501) includes right-angle flanges (514) with openings facing downwards, which are symmetrically arranged on both sides. The middle support plate (502) includes right-angle flanges (515) with openings facing upwards, which are symmetrically arranged on both sides. The elastic support assembly (507) is disposed between the right-angle flanges (514) of the upper support plate and the right-angle flanges (515) of the middle support plate.

6. The elastic support mechanism for a vibratory ball mill according to claim 5, characterized in that, The tray elastic support assembly (507) includes an upper tray spring support (508) connected to the upper tray right-angle flange (514) and a middle tray spring support (509) connected to the middle tray right-angle flange (515), and the connection is achieved through a tray spring (510).

7. The elastic support mechanism for a vibratory ball mill according to claim 1, characterized in that, The vibration table elastic support assembly (4) includes an upper connecting part (401) disposed on the bottom surface of the vibration table (1) and a lower connecting part (402) disposed on the surface of the bracket (2). The upper connecting part (401) and the lower connecting part (402) are connected by an elastic member (403).

8. The elastic support mechanism for a vibratory ball mill according to claim 7, characterized in that, The upper connecting part (401) is an upper spring sleeve post disposed on the bottom surface of the vibration table plate (1), the lower connecting part (402) is a lower spring sleeve post disposed on the surface of the bracket (2), and the elastic component (403) is a spring disposed between the upper spring sleeve post and the lower spring sleeve post.

9. The elastic support mechanism for a vibratory ball mill according to claim 7, characterized in that, The upper connecting part (401) is an upper air spring connecting seat disposed on the bottom surface of the vibration table plate (1), the lower connecting part (402) is a lower air spring connecting seat disposed on the surface of the bracket (2), and the elastic component (403) is an air spring disposed between the upper air spring connecting seat and the lower air spring connecting seat.

10. An elastic support mechanism for a vibratory ball mill according to claim 7, characterized in that, The upper connecting part (401) is an upper rubber spring connecting seat disposed on the bottom surface of the vibration table plate (1), the lower connecting part (402) is a lower rubber spring connecting seat disposed on the surface of the bracket (2), and the elastic component (403) is a rubber spring disposed between the upper rubber spring connecting seat and the lower rubber spring connecting seat.

Images