Vibration device for ring-shaped fabric structure and mineral processing machine

Abstract

This invention relates to the field of ore sorting equipment technology, and discloses a vibration device and a mineral processing machine for an annular feeding structure. The vibration device includes a vibratory plate and a vibrator. A through hole is provided at the center of the vibratory plate. The vibrator includes a housing, a drive component, and an eccentric component. The housing is mounted on the through hole and has an excitation cavity. The drive component is disposed on the housing, and the extension direction of the drive component's output shaft coincides with the centerline of the vibratory plate and extends into the excitation cavity. The eccentric component is disposed within the excitation cavity and is drively connected to the output end of the drive component. An axial limiting structure is provided between the eccentric component and the housing to prevent the eccentric component from displacing along the extension direction of the output shaft. The use of an annular feeding structure shortens the conveying path of the ore raw materials, and the precise control of the ore raw material's movement speed through the cooperation of the vibrator and vibratory plate ensures the sorting accuracy of the ore raw materials, thus resolving the contradiction between the size and sorting accuracy of the ore sorting equipment.

Description

Technical Field

[0001] This invention relates to the field of ore sorting equipment technology, specifically to a vibration device and ore beneficiation machine for an annular cloth structure. Background Technology

[0002] The ore mining process can be divided into five major stages: exploration and assessment, mining implementation, ore processing, mineral processing, and environmental protection. In the mineral processing stage, ore sorting equipment is usually used. Conventional ore sorting equipment includes a feed inlet, a conveyor belt, a laser emitting device, a laser receiving device, and a waste removal device. After the ore raw material enters the feed inlet, it is transported by the conveyor belt. During the transportation process, the laser emitting device and the laser receiving device, together with the processor, use spectral analysis or physical property detection to identify the target mineral and waste rock. Then, the waste rock is removed by the waste rock removal device. The waste rock removal device can be a jet valve that blows the waste rock with high-speed airflow to achieve the purpose of removing impurities.

[0003] Conventional ore sorting equipment requires strict control of the conveying speed of ore raw materials to ensure sorting accuracy. Therefore, its conveyor belt is generally long to facilitate the control of the conveying speed of ore raw materials. However, this results in a large overall size of the ore sorting equipment and a high space occupancy rate. If the size of the conveyor belt is shortened, it is impossible to accurately control the material conveying speed. Therefore, conventional ore sorting equipment has an inability to resolve the contradiction between size and sorting accuracy. Summary of the Invention

[0004] In view of this, the present invention provides a vibration device and a mineral processing machine for annular fabric structures to solve the problem of the contradiction between size and sorting accuracy in conventional ore sorting equipment.

[0005] In a first aspect, the present invention provides a vibration excitation device for annular fabric structures, comprising:

[0006] The vibratory feeder has a through hole in the center.

[0007] The exciter includes:

[0008] The housing, mounted on the through hole, has a vibration chamber;

[0009] A driving component is disposed on the housing, the extension direction of the output shaft of the driving component coincides with the center line of the vibratory disk, and extends into the excitation cavity;

[0010] An eccentric component is disposed within the excitation cavity and is connected to the output shaft of the drive component. An axial limiting structure is provided between the eccentric component and the housing to prevent the eccentric component from displacing along the extension direction of the output shaft.

[0011] Optionally, the output end of the drive component is provided with a coupling, and the eccentric component is connected to the coupling via an eccentric shaft.

[0012] Optionally, the eccentric element includes:

[0013] A clamping sleeve is fitted onto the eccentric shaft and fixedly connected.

[0014] An eccentric block is integrally formed with the clamping sleeve, and the eccentric block has an arc surface that fits with the inner wall of the excitation cavity.

[0015] Optionally, the housing includes:

[0016] The first outer shell has an outer wall that fits into the through hole, and a first mounting edge is provided at the opening of the first outer shell, which is fixedly connected to the vibratory feeder.

[0017] The second housing has an outer wall that fits against the inner wall of the opening of the first housing. The second housing has a second mounting edge that is fixedly connected to the first mounting edge. The vibration cavity is formed between the first housing and the second housing. The second housing has a shaft hole, and the coupling is located in the shaft hole.

[0018] The first housing is provided with a first bearing, the second housing is provided with a second bearing, and the two ends of the eccentric shaft are respectively rotatably engaged with the first bearing and the second bearing;

[0019] The axial limiting structure includes a first annular boss and a second annular boss coaxially disposed on the eccentric shaft. In the extending direction of the eccentric shaft, the first bearing, the first annular boss, the clamping sleeve, the second annular boss, and the second bearing are sequentially fitted together.

[0020] Optionally, the first housing has a first stepped hole, the second housing has a second stepped hole, the second stepped hole is coaxially arranged with the shaft hole and located at one end of the shaft hole near the excitation cavity, the first stepped hole and the second stepped hole are coaxially arranged and located at one end of the shaft hole near the excitation cavity, the first stepped hole and the second stepped hole are coaxially arranged, the first bearing is installed in the first stepped hole, and the second bearing is installed in the second stepped hole.

[0021] Optionally, the first housing is provided with a first limiting member, the first limiting member being annular in shape, and the inner edge of the first limiting member pressing against the first bearing; the second housing is provided with a second limiting member, the second limiting member being annular in shape, and the inner edge of the second limiting member pressing against the second bearing.

[0022] Optionally, the first housing is provided with a first stepped groove, the first limiting member has a first annular protrusion adapted to the shape of the first stepped groove, the second housing is provided with a second stepped groove, and the second limiting member has a second annular protrusion adapted to the shape of the second stepped groove.

[0023] Optionally, a sleeve is provided on the outer side of the first housing, the inner wall of the sleeve is fitted with the outer wall of the first housing, the sleeve has a third mounting edge that is adapted to the shape of the first mounting edge, and the vibratory plate is located between the first mounting edge and the third mounting edge.

[0024] Optionally, a protective cover is provided on the outer edge of the through hole of the vibratory plate, the exciter is located inside the protective cover, and there is a gap between the protective cover and the exciter.

[0025] Secondly, the present invention provides a mineral processing machine for an annular cloth structure, including the above-mentioned excitation device for a circular cloth feeder, and further comprising:

[0026] A frame, wherein the frame is provided with a material cylinder for feeding material;

[0027] The vibration device is mounted on the frame via a bracket, and the vibratory plate is directly opposite the material cylinder to receive the material from the material cylinder.

[0028] Beneficial effects:

[0029] 1. The vibration excitation device for annular fabric structures provided by the present invention includes: a vibratory plate and a vibrator.

[0030] The vibratory feeder has a through hole at its center. The exciter includes a housing, a drive component, and an eccentric component. The housing is mounted on the through hole and has an excitation cavity. The drive component is mounted on the housing, and the extension direction of the drive component's output shaft coincides with the centerline of the vibratory feeder and extends into the excitation cavity. The eccentric component is disposed within the excitation cavity and is drively connected to the output shaft of the drive component. An axial limiting structure is provided between the eccentric component and the housing to prevent the eccentric component from displacing along the extension direction of the output shaft.

[0031] A vibratory feeder serves as a receiving structure for ore raw materials. Its vibration is controlled by an exciter, causing the ore raw materials to move radially across the feeder's surface. The exciter is positioned at the center of the feeder, ensuring uniform transmission of the excitation force from the center to the edges, thus controlling the ore's movement speed. Specifically, the exciter has a housing with through holes mounted on the feeder. The output shaft of the drive unit can rotate an eccentric component around the feeder's centerline. An axial limiting structure is provided between the eccentric component and the housing to ensure stable rotation of the eccentric component around the output shaft's axis. The excitation force from the eccentric component is stably transmitted to the feeder through the housing. This configuration improves the controllability of the feeder's output vibration amplitude and frequency, allowing for precise control of the ore's movement speed on the feeder, facilitating subsequent ore inspection and impurity removal.

[0032] Compared to conventional ore sorting equipment, the vibratory feeder provided by this invention shortens the conveying path of ore raw materials by using a ring-shaped cloth, and can accurately control the movement speed of ore raw materials through the cooperation of the vibrator and the vibratory feeder, so as to ensure the sorting accuracy of ore raw materials and solve the contradiction between the size of ore sorting equipment and sorting accuracy.

[0033] 2. The vibration device for annular fabric structures provided by the present invention has a coupling at the output end of the drive component. The eccentric component is connected to the coupling via the eccentric shaft. The coupling can correct the concentricity deviation between the output shaft of the drive component and the eccentric shaft, improve the transmission efficiency, and reduce the lateral force generated by the eccentric shaft on the output shaft, thereby protecting the drive component and ensuring stable operation of the equipment. Attached Figure Description

[0034] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0035] Figure 1 This is a schematic diagram of the structure of the excitation device according to an embodiment of the present invention;

[0036] Figure 2 for Figure 1 The diagram shows a cross-sectional view of the excitation device.

[0037] Figure 3 This is a schematic diagram of the structure of the vibratory feeder according to an embodiment of the present invention;

[0038] Figure 4 This is a schematic diagram of the structure of the exciter according to an embodiment of the present invention;

[0039] Figure 5 This is a schematic cross-sectional view of the exciter according to an embodiment of the present invention;

[0040] Figure 6 This is a schematic diagram of the structure of the first and second outer shells according to an embodiment of the present invention;

[0041] Figure 7 This is a schematic diagram of the structure of the protective cover according to an embodiment of the present invention;

[0042] Figure 8 This is a schematic cross-sectional view of the upper cover body according to an embodiment of the present invention;

[0043] Figure 9 This is a schematic diagram of the groove structure of the upper cover body according to an embodiment of the present invention;

[0044] Figure 10 This is a cross-sectional structural diagram of the mineral processing machine according to an embodiment of the present invention;

[0045] Figure 11 This is a schematic diagram of the structure of the elastic support column according to an embodiment of the present invention.

[0046] Explanation of reference numerals in the attached figures:

[0047] 1. Vibratory feeder; 101. Through hole; 2. Exciter; 21. Housing; 201. Excitation chamber; 211. First outer shell; 212. Second outer shell; 213. First mounting edge; 214. Second mounting edge; 215. Shaft hole; 216. Baffle; 202. First stepped hole; 203. Second stepped hole; 204. First stepped groove; 205. Second stepped groove; 22. Drive component; 221. Output shaft; 23. Eccentric component; 231. Clamping sleeve; 232. Eccentric block; 24. Coupling; 24 1. Power input end; 242. Power output end; 25. Eccentric shaft; 251. First annular boss; 252. Second annular boss; 261. First bearing; 262. Second bearing; 27. First limiting member; 28. Second limiting member; 3. Housing; 31. Third mounting edge; 4. Protective cover; 41. Upper cover; 411. Groove; 42. Lower cover; 5. Bracket; 51. Elastic support column; 52. First fastener; 53. Second fastener; 54. Support frame; 6. Frame; 7. Material cylinder. Detailed Implementation

[0048] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0049] like Figure 1 , Figure 2 and Figure 3 As shown, this embodiment provides a vibration excitation device for annular fabric structures, including: a vibratory plate 1 and a vibrator 2.

[0050] The vibratory feeder 1 has a through hole 101 at its center. The vibratory feeder 1 can serve as a receiving and conveying structure for ore raw materials. The vibratory feeder 1 can be made of manganese steel. The vibration of the vibratory feeder 1 can be controlled by the vibrator 2, thereby causing the ore raw materials to move radially on the surface of the vibratory feeder 1.

[0051] The vibrator 2 includes a housing 21, a drive component 22, and an eccentric component 23. The housing 21 is mounted on the through hole 101 and has an excitation cavity 201. The drive component 22 is disposed on the housing 21 and can be an electric motor or a pneumatic motor. The extension direction of the output shaft 221 of the drive component 22 coincides with the center line of the vibratory plate 1 and extends into the excitation cavity 201. The eccentric member 23 is disposed in the excitation cavity 201 and is connected to the output shaft 221 of the drive member 22. An axial limiting structure is provided between the eccentric member 23 and the housing 21. The axial limiting structure is used to prevent the eccentric member 23 from displacing along the extension direction of the output shaft 221. Since the extension direction of the output shaft 221 of the drive member 22 coincides with the center line of the vibrating disk 1, the rotation axis of the output shaft 221 coincides with the center line. Therefore, the rotation of the eccentric member 23 around the rotation axis of the output shaft 221 is equivalent to the rotation around the center line of the vibrating disk 1. The excitation force generated when the eccentric member 23 rotates is transmitted from the center of the vibrating disk 1 to the edge.

[0052] By placing the vibrator 2 at the center of the vibratory plate 1, the excitation force can be uniformly transmitted from the center to the edge of the vibratory plate 1, thus controlling the movement speed of the ore raw material. Specifically, the vibrator 2 has a housing 21 with a through hole 101 mounted on the vibratory plate 1. The output shaft 221 of the drive component 22 can drive the eccentric component 23 to rotate around the center line of the vibratory plate 1. An axial limiting structure is provided between the eccentric component 23 and the housing 21 to ensure that the eccentric component 23 can rotate stably around the rotation axis of the output shaft 221. The excitation force of the eccentric component 23 can be stably transmitted to the vibratory plate 1 through the housing 21. This configuration can improve the controllability of the output vibration amplitude and vibration frequency of the vibrator, thereby accurately controlling the movement speed of the ore raw material on the vibratory plate 1, which is convenient for subsequent detection and impurity removal of the ore raw material.

[0053] Compared with conventional ore sorting equipment, the vibratory plate 1 provided by the present invention adopts a ring-shaped cloth method, which can reduce the conveying path of ore raw materials. Furthermore, through the cooperation of the vibrator 2 and the vibratory plate 1, the movement speed of ore raw materials can be precisely controlled to ensure the sorting accuracy of ore raw materials, thus solving the contradiction between the size of ore sorting equipment and sorting accuracy.

[0054] In this embodiment, the projected shape of the vibratory plate 1 can be annular. The height of the vibratory plate 1 gradually decreases from the through hole 101 to the edge, which facilitates the uniform distribution of materials along the annular surface of the vibratory plate 1.

[0055] like Figure 2 , Figure 4 and Figure 5 As shown, in this embodiment, the output end of the drive member 22 is provided with a coupling 24, and the eccentric member 23 is connected to the coupling 24 via an eccentric shaft 25. The output shaft 221 of the drive member 22 is connected to the power input end 241 of the coupling 24, and the eccentric shaft 25 is connected to the power output end 242 of the coupling 24, so that the driving force of the drive member 22 can be transmitted to the eccentric member 23 through the output shaft 221, the coupling 24, and the eccentric shaft 25.

[0056] The coupling 24 can be a flexible coupling, specifically a flexible sleeve pin coupling, a plum blossom coupling, a diaphragm coupling, or a spiral groove flexible coupling. The coupling 24 can correct the concentricity deviation between the output shaft 221 of the drive component 22 and the eccentric shaft 25, improving transmission efficiency. It can also reduce the lateral force exerted by the eccentric shaft 25 on the output shaft 221, thus protecting the drive component 22 and ensuring stable equipment operation.

[0057] like Figure 5As shown, in this embodiment, the power input end 241 of the coupling 24 is constructed as a coupling hole, and the output shaft 221 of the drive member 22 extends into the coupling hole and is fixedly connected together. For example, the output shaft 221 and the coupling hole can be fitted together by interference fit, pin, or splined shaft and keyway. The power output end 242 of the coupling 24 is constructed as a connecting shaft, and the eccentric shaft 25 is constructed as a hollow shaft. The connecting shaft extends into the hollow shaft and is fixedly connected to the inner wall of the hollow shaft. For example, the connecting shaft and the hollow shaft can be fitted together by interference fit, pin, or splined shaft and keyway. This can improve the transmission stability of the eccentric shaft 25 and the output shaft 221, improve the vibration resistance of the eccentric shaft 25, and reduce the weight of the eccentric shaft 25.

[0058] like Figure 5 As shown, in this embodiment, the housing 21 includes a first outer shell 211 and a second outer shell 212, which may be made of hard materials such as cast iron, cast steel or stainless steel.

[0059] The first outer shell 211 can be cylindrical in shape. The outer wall of the first outer shell 211 fits into the through hole 101. A first mounting edge 213 is provided at the opening of the first outer shell 211. The first mounting edge 213 is fixedly connected to the vibratory plate 1. For example, multiple positioning pin holes are provided on the first mounting edge 213 and the vibratory plate 1 respectively. Then, it is fixed by locking screws, so that the first outer shell 211 can transmit the excitation force to the vibratory plate 1.

[0060] The second outer shell 212 can be cylindrical in shape. It extends into the interior of the first outer shell 211 from its opening. The outer wall of the second outer shell 212 fits against the inner wall of the opening of the first outer shell 211. The second outer shell 212 is provided with a second mounting edge 214, which is fixedly connected to the first mounting edge 213. For example, multiple positioning pin holes are correspondingly provided on the first mounting edge 213 and the second mounting edge 214, which are then fixed by locking screws. The second mounting edge 214 and the outer wall of the second outer shell 212 can also form a step that mates with the opening of the first outer shell 211 to ensure the stability of the installation of the first outer shell 211 and the second outer shell 212. A vibration cavity 201 is formed between the first outer shell 211 and the second outer shell 212. A shaft hole 215 is provided on the second outer shell 212, that is, the hollow inner cavity of the second outer shell 212 forms the shaft hole 215, and the coupling 24 is located within the shaft hole 215.

[0061] This arrangement ensures that the second outer shell 212 is tightly assembled with the first outer shell 211, and also ensures that the overall structure is compact, preventing relative shaking between the first outer shell 211 and the second outer shell 212.

[0062] The first housing 211 is provided with a first bearing 261, and the second housing 212 is provided with a second bearing 262. The two ends of the eccentric shaft 25 are respectively rotatably engaged with the first bearing 261 and the second bearing 262. That is, the outer walls of the two ends of the eccentric shaft 25 are respectively rotatably engaged with the first bearing 261 and the second bearing 262. Since the eccentric shaft 25 is a hollow shaft, the distance between the eccentric shaft 25 and the output shaft 221 can be shortened, and the size of the second housing 212 in the direction of the center line of the vibratory plate 1 can be shortened, making the structure more compact. At the same time, the distance between the eccentric component 23 and the vibratory plate 1 can also be shortened, improving the transmission effect of the excitation force generated by the eccentric component 23, and further improving the controllability of the vibration amplitude and vibration frequency of the vibratory plate 1.

[0063] like Figure 2 and Figure 5 As shown, in this embodiment, the eccentric component 23 includes: a clamping sleeve 231 and an eccentric block 232.

[0064] The clamping sleeve 231 is fitted onto and fixedly connected to the eccentric shaft 25. The eccentric block 232 is integrally formed with the clamping sleeve 231. At the end of the clamping sleeve 231 opposite to the eccentric block 232 are two clamping blocks. Each clamping block has an inner arc surface that mates with the outer wall of the eccentric shaft 25. The two clamping blocks can be fixed by tightening screws to secure the clamping sleeve 231 to the eccentric shaft 25. The eccentric block 232 has an arc surface that clearance-fits with the inner wall of the excitation chamber 201. The distance between the center of mass of the eccentric block 232 and the axis of rotation can be adjusted by changing the size of the clamping sleeve 231, meaning the eccentricity can be flexibly adjusted. The integral forming of the eccentric block 232 and the clamping sleeve 231 ensures stable transmission, thereby guaranteeing the stability of the entire exciter 2 during operation.

[0065] like Figure 5 As shown, in this embodiment, there are gaps between the two opposing surfaces of the eccentric block 232 and the surfaces of the first limiting member 27 and the second limiting member 28, respectively. One surface of the first limiting member 27 is used to press the first bearing 261, that is, to press it onto the outer ring of the first bearing 261. One surface of the second limiting member 28 is used to press the second bearing 262, that is, to press it onto the outer ring of the second bearing 262. The other surface of the first limiting member 27 is opposite to the other surface of the second limiting member 28. This can prevent the eccentric block 232 from shaking or displacing, and further improve the control of the vibration amplitude and vibration frequency of the vibrating plate 1.

[0066] The axial limiting structure includes a first annular boss 251 and a second annular boss 252 coaxially mounted on the eccentric shaft 25. In the extending direction of the eccentric shaft 25, the first bearing 261, the first annular boss 251, the clamping sleeve 231, the second annular boss 252, and the second bearing 262 are sequentially fitted together. The first annular boss 251 is fitted onto the inner ring of the first bearing 261, and the second annular boss 252 is fitted onto the inner ring of the second bearing 262. During operation, the eccentric shaft 25, the inner ring of the first bearing 261, and the inner ring of the second bearing 262 rotate synchronously. The inner rings of the first bearing 261 and the second bearing 262 rotate relative to their respective outer rings through rotating bodies. This arrangement can prevent the clamping sleeve 231 from wobbling relative to the eccentric shaft 25, further improving the stability of the eccentric shaft 25 driving the eccentric block 232 to move.

[0067] The first annular boss 251 can be integrally formed on the outer wall of the eccentric shaft 25. The second annular boss 252 can be a bushing. The second annular boss 252 is sleeved on the eccentric shaft 25. During assembly, the clamping sleeve 231 can be first sleeved on the eccentric shaft 25 and fitted with the first annular boss 251, and then the second annular boss 252 can be sleeved on the eccentric shaft 25.

[0068] like Figure 5 As shown, in this embodiment, the first outer shell 211 has a first stepped hole 202, and the second outer shell 212 has a second stepped hole 203. The second stepped hole 203 is coaxially arranged with the shaft hole 215 and is located at one end of the shaft hole 215 near the excitation cavity 201. The first stepped hole 202 and the second stepped hole 203 are coaxially arranged. The first bearing 261 is installed in the first stepped hole 202, and the second bearing 262 is installed in the second stepped hole 203. This arrangement can improve the concentricity of the first bearing 261 and the second bearing 262, ensure that the rotation axis of the eccentric shaft 25 is highly coincident with the center line of the vibrating disk 1, and further improve the controllability of the vibration amplitude and vibration frequency of the vibrating disk 1.

[0069] like Figure 6As shown, in one embodiment of this example, the dimensions of the first stepped hole 202 and the second stepped hole 203 are exactly the same. For example, during processing, the first housing 211 and the second housing 212 can be assembled and fixed firstly, and then the bearing hole positions can be processed sequentially on the first housing 211 and the second housing 212 using a machining tool. The bearing hole positions are the first stepped hole 202 and the second stepped hole 203 mentioned above. The diameter of the bearing hole position can be d1. According to the dimensions of the first housing 211 and the second housing 212 after assembly, the machining depth of the machine tool can be s1, and the depth of the two bearing hole positions formed can both be s2. s1 can include the sum of the depth of the two bearing hole positions and the depth of the excitation cavity 201, that is, two identical bearing hole positions are processed in one operation to ensure that the first bearing 261 and the second bearing 262 can be exactly the same, thereby improving concentricity.

[0070] The second step hole 203 can be directly machined, and the first step hole 202 can be formed by the baffle 216 set on the outside of the first housing 211 and the bearing hole. The first housing 211 and the second housing 212 machined in a single operation can be numbered and used in combination in the future, thereby ensuring the concentricity of the first step hole 202 and the second step hole 203.

[0071] In addition, before machining the bearing holes, the shaft holes for accommodating the output shaft 221 of the drive component 22 and the coupling 24 can be machined first, and then the bearing holes can be machined to ensure the concentricity of the shaft holes, the first stepped hole 202 and the second stepped hole 203.

[0072] like Figure 5 As shown, in this embodiment, a first limiting member 27 is provided on the first outer shell 211. The first limiting member 27 is annular in shape, and its inner edge is pressed against the first bearing 261. One end of the first bearing 261 in the direction of rotation axis extension is in contact with the first stepped hole 202, and the other end is in contact with the first limiting member 27. A second limiting member 28 is provided on the second outer shell 212. The second limiting member 28 is annular in shape, and its inner edge is pressed against the second bearing 262. One end of the second bearing 262 in the direction of rotation axis extension is in contact with the second stepped hole 203, and the other end is in contact with the second limiting member 28. This arrangement can prevent the first bearing 261 and the second bearing 262 from shaking or displacing, thereby preventing the eccentric shaft 25 from shaking, further ensuring concentricity, and improving the controllability of the vibration amplitude and vibration frequency of the vibratory plate 1.

[0073] like Figure 5As shown, in this embodiment, a first stepped groove 204 is provided on the first outer shell 211, and a first annular protrusion adapted to the shape of the first stepped groove 204 is provided on the first limiting member 27. A second stepped groove 205 is provided on the second outer shell 212, and a second annular protrusion adapted to the shape of the second stepped groove 205 is provided on the second limiting member 28. This arrangement can prevent the first limiting member 27 and the second limiting member 28 from shaking, thereby ensuring that the eccentric block 232 can rotate stably around the rotation axis.

[0074] The first limiting member 27 can be fixed to the first stepped groove 204 by tightening screws, and the second limiting member 28 can be fixed to the second stepped groove 205 by tightening screws.

[0075] like Figure 2 As shown, in this embodiment, a sleeve 3 is provided on the outer side of the first outer shell 211. The inner wall of the sleeve 3 fits against the outer wall of the first outer shell 211. The sleeve 3 has a third mounting edge 31 that matches the shape of the first mounting edge 213. The vibratory disk 1 is located between the first mounting edge 213 and the third mounting edge 31. The first mounting edge 213, the third mounting edge 31, and the outer wall of the first outer shell 211 can form a groove. The groove can cooperate with the upper and lower surfaces of the through hole 101 of the vibratory disk 1, improving the stability of the installation of the first outer shell 211 and the vibratory disk 1. Moreover, this arrangement is more conducive to transmitting the excitation force to the vibratory disk 1, further improving the controllability of the vibration amplitude and vibration frequency of the vibratory disk 1.

[0076] like Figure 7 and Figure 8 As shown, a protective cover 4 is provided on the outer edge of the through hole 101 of the vibratory feeder 1. The protective cover 4 is made of polyurethane or manganese steel. The vibrator 2 is located inside the protective cover 4, and there is a gap between the protective cover 4 and the vibrator 2. The protective cover 4 can prevent the ore raw material from falling directly onto the vibrator 2, and at the same time, it can also prevent the impact force from being transmitted to the vibrator 2, thus playing a protective role.

[0077] like Figure 8 and Figure 9As shown, in this embodiment, the protective cover 4 has an upper cover 41 and a lower cover 42. The lower cover 42 has a cylindrical structure and is installed on the vibrating plate 1. The upper cover 41 is fastened to the lower cover 42. The lower cover 42 can support the upper cover 41 so that there is a certain distance between the upper cover 41 and the vibrating plate 1. Combined with the cylindrical structure of the lower cover 42, a protective cavity is formed. The vibrator 2 is located in the protective cavity. The surface of the upper cover 41 is provided with multiple grooves 411. The grooves 411 have a certain depth but do not penetrate the upper cover 41. Since the falling ore raw materials will continuously wear down the upper cover 41, the grooves 411 on the upper cover 41 can be used to indicate the degree of wear of the upper cover 41. When the grooves 411 on the upper cover 41 become shallow or disappear, the staff only needs to replace the upper cover 41 and does not need to replace the entire protective cover 4.

[0078] The outer peripheral wall of the lower cover 42 can be provided with multiple grooves, forming a support wall between two adjacent grooves, thereby reducing the weight of the lower cover 42 and ensuring its impact resistance.

[0079] like Figure 7 and Figure 10 As shown, the present invention provides a mineral processing machine for an annular cloth structure, including the above-mentioned excitation device for a circular cloth feeder, and further including: a frame 6.

[0080] The frame 6 is equipped with a material cylinder 7 for feeding material. The vibration device is mounted on the frame 6 via a bracket 5, and the vibratory plate 1 is directly opposite the material cylinder 7 to receive the material from the material cylinder 7. For example, after the ore raw material passes through the material cylinder 7, it falls onto the vibratory plate 1. The excitation force of the vibrator 2 drives the vibratory plate 1 to vibrate, causing the ore raw material to fall evenly along the annular surface of the vibratory plate 1, so that the detection and impurity removal devices below can detect and remove impurities.

[0081] like Figure 11 As shown, the lower surface of the vibratory feeder 1 is connected to the support 5 via multiple elastic support columns 51. When the vibrator 2 is working, the vibratory feeder 1 can vibrate relative to the support 5 via the elastic support columns 51, preventing the excitation force from being transmitted to the support 5. The elastic support columns 51 can be made of rubber or silicone material and have a hollow inner cavity. A first fastener 52 and a second fastener 53 are respectively provided at both ends of the hollow inner cavity. The first fastener 52 is connected to the vibratory feeder 1, and the second fastener 53 is connected to the support 5 to ensure that the vibratory feeder 1 can vibrate relative to the support 5. The first fastener 52 and the second fastener 53 have the same structure, both including inserts that can be embedded in the hollow inner cavity and screws provided on the inserts. The screws are used to tighten into corresponding threaded holes on the vibratory feeder 1 or the support 5.

[0082] The elastic support column 51 can also be replaced with a rubber spring.

[0083] The support 5 can be mounted on the frame 6 via the support frame 54. The support frame 54 has multiple support arms connected to the edge of the support 5, thereby ensuring that there is a certain gap between the edge of the vibratory plate 1 and the support frame 54, so that the ore raw material can fall through the gap for subsequent testing and impurity removal.

[0084] Although embodiments of the invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A vibration excitation device for annular fabric structures, characterized in that, include: Vibratory plate (1) with a through hole (101) in the center; The exciter (2) includes: A housing (21), mounted on the through hole (101), has an excitation cavity (201). The housing (21) includes a first outer shell (211) and a second outer shell (212). The outer wall of the first outer shell (211) is fitted to the through hole (101). A first mounting edge (213) is provided at the opening of the first outer shell (211). The first mounting edge (213) is fixedly connected to the vibrating plate (1). The outer wall of the second outer shell (212) is fitted to the inner wall of the opening of the first outer shell (211). The second outer shell (212) is provided with a second mounting edge (201). 214), the second mounting edge (214) is fixedly connected to the first mounting edge (213), and the excitation cavity (201) is formed between the first shell (211) and the second shell (212). A sleeve (3) is provided on the outside of the first shell (211). The inner wall of the sleeve (3) is fitted with the outer wall of the first shell (211). The sleeve (3) has a third mounting edge (31) that is adapted to the shape of the first mounting edge (213). The vibrating plate (1) is located between the first mounting edge (213) and the third mounting edge (31). A drive unit (22) is disposed on the housing (21). The extension direction of the output shaft (221) of the drive unit (22) coincides with the center line of the vibratory disk (1) and extends into the excitation cavity (201). An eccentric component (23) is disposed in the excitation cavity (201) via an eccentric shaft (25). The eccentric shaft (25) is connected to the output shaft (221) of the drive component (22) via a coupling (24). An axial limiting structure is provided between the eccentric component (23) and the housing (21). The axial limiting structure is used to prevent the eccentric component (23) from displacing along the extension direction of the output shaft (221).

2. The excitation device according to claim 1, characterized in that, The eccentric component (23) includes: The clamping sleeve (231) is fitted onto the eccentric shaft (25) and fixedly connected; An eccentric block (232) is integrally formed with the clamping sleeve (231), and the eccentric block (232) has an arc surface that fits with the inner wall of the excitation cavity (201).

3. The excitation device according to claim 2, characterized in that, The second housing (212) is provided with a shaft hole (215), and the coupling (24) is located in the shaft hole (215); The first housing (211) is provided with a first bearing (261), and the second housing (212) is provided with a second bearing (262). The two ends of the eccentric shaft (25) are respectively rotatably engaged with the first bearing (261) and the second bearing (262). The axial limiting structure includes a first annular boss (251) and a second annular boss (252) coaxially disposed on the eccentric shaft (25). In the extending direction of the eccentric shaft (25), the first bearing (261), the first annular boss (251), the clamping sleeve (231), the second annular boss (252), and the second bearing (262) are sequentially attached together.

4. The excitation device according to claim 3, characterized in that, The first housing (211) has a first stepped hole (202), and the second housing (212) has a second stepped hole (203). The second stepped hole (203) is coaxially arranged with the shaft hole (215) and is located at one end of the shaft hole (215) near the excitation cavity (201). The first stepped hole (202) and the second stepped hole (203) are coaxially arranged. The first bearing (261) is installed in the first stepped hole (202), and the second bearing (262) is installed in the second stepped hole (203).

5. The excitation device according to claim 4, characterized in that, The first housing (211) is provided with a first limiting member (27), which is annular in shape, and the inner edge of the first limiting member (27) is pressed against the first bearing (261). The second housing (212) is provided with a second limiting member (28), which is annular in shape, and the inner edge of the second limiting member (28) is pressed against the second bearing (262).

6. The excitation device according to claim 5, characterized in that, The first outer shell (211) is provided with a first stepped groove (204), the first limiting member (27) has a first annular protrusion that matches the shape of the first stepped groove (204), the second outer shell (212) is provided with a second stepped groove (205), and the second limiting member (28) has a second annular protrusion that matches the shape of the second stepped groove (205).

7. The excitation device according to claim 1, characterized in that, The vibratory plate (1) has a protective cover (4) on the outer edge of the through hole (101), the vibrator (2) is located inside the protective cover (4), and there is a gap between the protective cover (4) and the vibrator (2).

8. A mineral processing machine for an annular fabric structure, characterized in that, The device comprising the excitation device for a circular fabric placing machine as described in any one of claims 1 to 7 further comprises: The frame (6) is provided with a material cylinder (7) for feeding material. The excitation device is mounted on the frame (6) via a bracket (5), and the vibratory plate (1) is directly opposite the material cylinder (7) to receive the material from the material cylinder (7).

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