A grinding and dispersing wheel capable of forming two dispersing speeds

Abstract

The present invention is applicable to the technical field of wet grinding. The present invention discloses a grinding dispersion wheel capable of forming two dispersion speeds, wherein the dispersion wheel is evenly provided with first radial acceleration holes along the circumferential direction of the dispersion wheel, and mutually independent second radial acceleration holes are provided between two adjacent first radial acceleration holes, and the dispersion wheel is also provided with feed holes respectively connected with the first radial acceleration holes and the second radial acceleration holes, and the feed holes enable the first radial acceleration holes and the second radial acceleration holes to form acceleration paths of different lengths respectively. During operation, the acceleration paths of the dispersion wheel generate different dispersion speeds, and a plurality of mixtures of different speeds are formed in the radial direction of the dispersion wheel and intertwined with each other, thereby increasing the contact opportunities of the mixtures, and at the same time, the adjacent dispersion speeds are different, thereby increasing the force when the mixtures are in contact, and under this joint action, a better grinding effect is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of grinding, in particular to a grinding and dispersing wheel capable of forming two dispersing speeds. Background Art

[0002] When the existing wet grinding equipment is grinding, the dispersion wheel can output high-speed rotation, thereby moving the material (the material to be ground) and the grinding medium (such as zirconium balls). During the movement, the material and the grinding medium can output interaction, thereby achieving grinding. However, during the grinding process, the existing grinding and dispersion device makes the material and the grinding medium move at the same speed. Although this increases the contact opportunities during the movement and partially promotes the grinding efficiency, since the movement speeds of the material and the grinding medium are not much different, even if the contact opportunities are increased, the movement speeds between them are basically the same, resulting in a small interaction between the energy output contact, affecting the grinding effect. Summary of the invention

[0003] The main technical problem solved by the present invention is to provide a grinding and dispersing wheel capable of forming two dispersing speeds, which can improve the grinding efficiency by increasing the contact action mode.

[0004] In order to solve the above problems, the present invention provides a grinding dispersion wheel capable of forming two dispersion speeds. The grinding dispersion wheel capable of forming two dispersion speeds has first radial acceleration holes evenly arranged along the circumferential direction of the dispersion wheel, and second radial acceleration holes independent of each other are arranged between two adjacent first radial acceleration holes. The dispersion wheel is also provided with feed holes in the axial direction thereof, which are respectively connected to the first radial acceleration holes and the second radial acceleration holes. The feed holes along the axial direction of the dispersion wheel enable the first radial acceleration holes and the second radial acceleration holes to respectively form acceleration paths of different lengths to produce two different dispersion speeds.

[0005] Furthermore, the distances from the first radial acceleration hole, the second radial acceleration hole and the upper feed hole to the center of the dispersion wheel shaft are different.

[0006] Furthermore, each of the first radial acceleration hole and the second radial acceleration hole feed hole is respectively located on circles of different radii with the dispersion wheel rotation axis as the center.

[0007] Furthermore, the radius of the circle where the feed holes on the first radial acceleration hole are located is greater than the radius of the circle where the feed holes on the second radial acceleration hole are located.

[0008] Furthermore, the second radial acceleration hole comprises a through hole or a blind hole arranged along the radial direction of the dispersion wheel.

[0009] Furthermore, the feed holes on the first radial acceleration hole and the feed holes on the second radial acceleration hole are arranged on one side or both sides of the dispersion wheel.

[0010] Furthermore, the dispersion wheel further comprises a center hole coaxial with the dispersion wheel shaft, and the center hole is connected with the first radial acceleration hole through the separation hole.

[0011] Furthermore, the first radial acceleration holes and the second radial acceleration holes are evenly distributed around the central hole.

[0012] Furthermore, the grinding and dispersing wheel also includes a separator arranged in the center hole of the dispersing wheel, and an axially closed separation chamber is formed between the separator and the center hole, and the separation chamber is connected with the hollow rotating shaft through the separator.

[0013] Furthermore, the width of the first radial acceleration hole in the circumferential direction of the dispersion wheel is greater than the width of the second radial acceleration hole in the circumferential direction of the dispersion wheel.

[0014] The present invention discloses a grinding dispersion wheel capable of forming two dispersion speeds. The dispersion wheel is provided with first radial acceleration holes evenly arranged along the circumferential direction of the dispersion wheel, and a second radial acceleration hole independent of each other is arranged between two adjacent first radial acceleration holes. The dispersion wheel is also provided with a feed hole connected to the first radial acceleration hole and the second radial acceleration hole respectively, and the feed hole enables the first radial acceleration hole and the second radial acceleration hole to form acceleration paths of different lengths respectively. During operation, two acceleration paths are formed inside the dispersion wheel, and different acceleration paths can form different dispersion speeds for the mixture, and multiple mixtures of different speeds are formed around the radial direction of the dispersion wheel to interweave with each other, thereby increasing the contact opportunity of the mixture. At the same time, the adjacent dispersion speeds are different, and in the case of a large speed difference, the mutual force between the mixtures when contact occurs can be increased, and under this joint action, a better grinding effect is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the description only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 The present invention is a schematic diagram of the cross-sectional structure of the first embodiment of a grinding dispersion wheel capable of forming two dispersion speeds, along a direction perpendicular to the dispersion wheel rotation axis.

[0017] Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure along the AA direction.

[0018] Figure 3 for Figure 1 Schematic diagram of the cross-sectional structure along the BB direction.

[0019] Figure 4 Schematic diagram of the movement direction of the grinding media and material mixture inside and outside the dispersion wheel during operation.

[0020] Figure 5 A schematic diagram of the cross-sectional structure of an embodiment of a dispersion wheel with a separator along a direction perpendicular to the dispersion wheel rotation axis.

[0021] Figure 6 for Figure 5 Schematic diagram of the cross-sectional structure along the AA direction.

[0022] Figure 7 for Figure 5 Schematic diagram of the cross-sectional structure along the BB direction.

[0023] FIG8 is a schematic cross-sectional view of the second embodiment of the grinding dispersion wheel capable of forming two dispersion speeds, along a direction perpendicular to the dispersion wheel axis.

[0024] The following is a further description of the implementation, functional features and advantages of the present invention with reference to the embodiments and accompanying drawings. DETAILED DESCRIPTION

[0025] The claims of the present invention are further described in detail below in conjunction with specific embodiments and drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments proposed by ordinary technicians in this field before making creative work also fall within the scope of protection of the present invention.

[0026] It should be understood that, in the description of the embodiments of the present invention, all directional indication terms, such as "up", "down", "left", "right", "front", "back", etc., indicate the orientation or position relationship based on the orientation, position relationship shown in the drawings or the orientation or position relationship in which the invented product is usually placed when in use, which is only for the convenience of simplifying the description of the present invention, and does not expressly or imply that the device, element or component referred to must have a specific orientation and a specific orientation structure, and should not be understood as a limitation on the present invention. It is only used to explain the relative position relationship, movement, etc. between the components shown in the drawings. When the specific posture changes, the directional indication may also change accordingly.

[0027] In addition, ordinal numbers such as "first" and "second" in the present invention are only used for the purpose of distinction, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. The features defined as "first" and "second" can explicitly or implicitly indicate at least one of the technical features. In the description of the present invention, "multiple" means at least two, that is, two or more, unless otherwise clearly defined; "at least one" means one or one and more.

[0028] In the present invention, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, the positional relationship between components can be relatively fixed, or the components can be physically fixedly connected; they can be detachable or integrated; they can be mechanically connected or electrically connected; they can be directly connected or indirectly connected through an intermediate medium or component; they can be internally connected between two elements or an interactive relationship between two elements. Unless otherwise clearly defined in the specification, other interpretations may not achieve the corresponding functions or effects. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] The control modules, controllers, and control circuits involved in the present invention are conventional control technologies or units of those skilled in the art. For example, the control circuit of the controller can be implemented by ordinary technicians in the field using existing technologies, such as simple programming. The software or program involved in cooperating with the hardware to achieve the control result, if the description does not provide a detailed description of the software or program control process involved, is the use of existing technologies or conventional technologies of ordinary technicians in the field. The power supply also uses the existing technologies in the field, and the main technical point of the present invention is to improve the mechanical device, so the present invention will no longer describe the specific circuit control relationship and circuit connection in detail.

[0030] like Figure 1 - As shown in Figure 8, the present invention provides an embodiment of a grinding dispersion wheel that can form two dispersion speeds.

[0031] The grinding dispersion wheel 1 capable of forming two dispersion speeds comprises first radial acceleration holes 15 evenly arranged along the circumferential direction of the dispersion wheel, and second radial acceleration holes 13 independent of each other are arranged between two adjacent first radial acceleration holes 15. The dispersion wheel is also provided with a feed hole connected to the first radial acceleration hole 15 and the second radial acceleration hole 13 respectively, and the feed hole enables the first radial acceleration hole 15 and the second radial acceleration hole 13 to form acceleration paths of different lengths respectively. A center hole 10 is provided in the center of the dispersion wheel 1, and the center hole 10 is connected to the first radial acceleration hole 15 through a separation hole 17.

[0032] Specifically, the dispersion wheel 1 is evenly provided with first radial acceleration holes 15 in the circumferential direction, and mutually independent second radial acceleration holes 13 are provided between two adjacent first radial acceleration holes 15. The first radial acceleration hole 15 is connected with a first feed hole 16 in the same direction as the axle of the dispersion wheel; the second radial acceleration hole 13 is connected with a second feed hole 14 in the same direction as the axle of the dispersion wheel. The acceleration paths formed by the first radial acceleration hole 15 and the second radial acceleration hole 13 have different lengths. When the dispersion wheel 1 rotates at high speed, the dispersion speeds of the mixture of grinding media and materials coming out of the first radial acceleration hole 15 and the second radial acceleration hole 13 are different due to the different lengths of the acceleration paths. When the first radial acceleration hole 15 has a long acceleration path, the dispersion speed it generates is greater than the dispersion speed output by the second radial acceleration hole 13. The dispersion speed refers to the speed when leaving the dispersion wheel 1.

[0033] The first radial acceleration holes 15 and the second radial acceleration holes 13 on the dispersion wheel 1 are arranged in sequence and at intervals. It is best to make the first radial acceleration holes 15 and the second radial acceleration holes 13 the same in number, so as to ensure that when manufacturing the dispersion wheel 1, it is easier to make its mass distribution uniform, ensure dynamic balance during rotation, reduce manufacturing difficulty and service life. The first radial acceleration holes 15 and the second radial acceleration holes 13 are independent of each other, that is, they cannot be connected to each other on the dispersion wheel 1, so as to ensure that there is no mutual interference inside the dispersion wheel 1 during the acceleration process, which affects the dispersion speed difference generated by different acceleration paths and affects the grinding efficiency.

[0034] The first feed hole 16 and the second feed hole 14 are at different distances from the center of the dispersion wheel shaft, so that the lengths of the acceleration paths formed by the first radial acceleration hole 15 and the second radial acceleration hole 13 are different. Figure 1 As shown, the length of the acceleration path formed by the first radial acceleration hole 15 is L1, and the length of the acceleration path formed by the second radial acceleration hole 12 is L2, where L1>L2. The acceleration path lengths of each acceleration hole are different. When the dispersion wheel 1 rotates at high speed, the rotation angular velocity of each acceleration hole is the same. The longer the acceleration path, the greater the dispersion speed. The acceleration process is achieved by the side wall of each acceleration hole pushing the mixture to move when the dispersion wheel rotates at high speed.

[0035] As needed, the second feed hole 14 is located on the same circle with the dispersion wheel shaft as the center to ensure uniform distribution and dynamic balance; the first feed hole 16 is located on the same circle with the dispersion wheel shaft as the center, which can ensure the uniform quality of the dispersion wheel, meet the dynamic balance requirements when the high belt rotates, and improve the service life.

[0036] The first feed hole 16 and the second feed hole 14 may be arranged such that the radius of the circle where the first feed hole 16 is located is larger than the radius of the circle where the second feed hole 14 is located.

[0037] During the grinding process, the grinding medium and material mixture are accelerated by a plurality of different acceleration holes spaced around the dispersion wheel radially, thereby forming a plurality of interwoven grinding flow paths with a plurality of different speeds around the dispersion wheel, wherein the radius size and the movement speed of each grinding flow path are positively correlated with the dispersion speed size of the mixture. The greater the dispersion speed, the greater the radius and the movement speed of the grinding flow path formed, and the smaller the dispersion speed, the smaller the radius and the movement speed of the grinding flow path formed.

[0038] Each grinding flow path includes three parts, namely, an acceleration zone A where a non-dispersed speed is generated by different acceleration holes in the dispersion wheel, a grinding zone B where mixtures of different dispersion speeds distributed around the dispersion wheel are interwoven and mixed, and a reflux zone C located on both sides of the dispersion wheel axially to introduce the mixture interwoven in the grinding zones into the acceleration zones, wherein there are a variety of mixtures of different speeds in the grinding zone B that are in full contact with each other with a large speed difference.

[0039] During operation, the driving device such as a motor drives the rotating shaft to make the dispersion wheel 1 rotate at high speed in the F direction, driving the mixture of the grinding medium and the material to move. Under the action of the first feed hole 16 and the second feed hole 14, the mixture in the fluid state is sucked into the dispersion wheel 1 respectively, and the corresponding first radial acceleration hole 15 and the second radial acceleration hole 13 respectively accelerate the mixture independently. Due to the different positions of the first feed hole 16 and the second feed hole 14, the acceleration path lengths of the first radial acceleration hole 15 and the second radial acceleration hole 13 are different. At the same speed, the first dispersion speed F1 accelerated by the first radial acceleration hole 15 and the second dispersion speed F2 accelerated by the second radial acceleration hole 13 are completely different. Different first dispersion speeds F1 and second dispersion speeds F2 form grinding paths with different radii. The first dispersion speed F1 generates the first grinding path E1, and the second dispersion speed F2 generates the second grinding path E2. When the first dispersion speed F1 is greater than the second dispersion speed F2, the first grinding path E1 is greater than the second grinding path E2. Since each grinding flow path has a different size, the space around the dispersion wheel 1 can be made to flow as much as possible, thereby avoiding the existence of an area where the mixture does not flow, and making the grinding more uniform.

[0040] When the mixture leaves the dispersion wheel 1, a grinding zone A is formed radially around the dispersion wheel 1 where mixtures of two dispersion speeds are interlaced and distributed at intervals. After interaction, the mixture flows to the reflux zone C. When the dispersion wheel 1 rotates at a high speed, the mixture in the reflux zone C re-enters the dispersion wheel 1 for independent acceleration, so that the mixture forms two dispersion speeds. The above cycle process is repeated to achieve grinding.

[0041] Since a grinding zone A in which mixtures of two dispersion speeds are interlaced and distributed at intervals is formed radially around the dispersion wheel 1, on the one hand, the interlacing of the mixtures in the grinding zone A can increase the contact opportunities; on the other hand, when mixtures of different speeds interact with each other during contact, there is a speed difference, which generates a larger interaction force, thereby improving the grinding efficiency.

[0042] According to the needs, the first feed hole 16 can be arranged on one side or both sides of the dispersion wheel 1, preferably arranged on both sides, so that the forces on both sides of the dispersion wheel are balanced during dispersion. The second feed hole 14 is arranged on both sides of the dispersion wheel 1; it can also be arranged on one side. When the second feed hole 14 is arranged on one side of the dispersion wheel, the adjacent second feed holes 14 are located on different sides, preferably arranged on both sides, so that the forces on both sides of the dispersion wheel are balanced during dispersion.

[0043] According to the requirements, the width of the first radial acceleration hole 15 in the circumferential direction of the dispersion wheel is greater than the width of the second radial acceleration hole 13 in the circumferential direction of the dispersion wheel. Since the width of the first radial acceleration hole 15 at the edge of the dispersion wheel is greater than the width of the second radial acceleration hole 13 in the circumferential direction of the dispersion wheel, the space formed by it is larger. When rotating at high speed, the negative pressure generated by the first radial acceleration hole 15 is larger, which makes it easier to accelerate more mixtures. During grinding, more high-speed moving mixtures can come into contact with lower-moving mixtures, thereby improving the grinding efficiency. At the same time, since the first feed hole 16 is far away from the edge of the dispersion wheel, and the second feed hole 14 is close to the edge of the dispersion wheel, it can be avoided that more mixtures enter the second radial acceleration hole 13 and produce more mixtures with lower moving speeds, thereby affecting the grinding efficiency.

[0044] According to the needs, the central hole 10 is used as a part of the material separation channel for completing the grinding, that is, when the separator 18 is provided in the central hole 10, such as Figure 5 As shown, an axially closed separation chamber 19 is formed between the separator 18 and the center hole 10, and a hollow drive shaft 20 connected to the separator 18, the separation chamber 19, the separation hole 17, and the first feed hole 16 form a material separation channel. The separator 18 is stacked with separation rings, and separation gaps are provided between the separation rings. Since an axially closed separation chamber 19 is formed between the separator 18 and the center hole 10, that is, it is radially connected to the outside of the dispersion wheel 1 through the separation hole 17, the first radial acceleration hole 15 or the first feed hole 16, the material entering the separation chamber 19 can only move in the radial direction, avoiding wear on the separator surface when moving on the shaft, thereby extending the service life of the separator.

[0045] After the grinding is completed, when the mixture enters the first radial acceleration hole 15 through the first feed hole 16, the material that meets the grinding requirements has a small mass (usually the mass is positively correlated with its size). When the negative pressure force generated by the high-speed rotation of the dispersion wheel 1 is greater than the centrifugal force, the material that meets the grinding requirements enters the separation chamber 19 through the separation hole 17, and is separated by the separator 18 connected to the separation chamber 19. When the negative pressure force generated by the dispersion wheel 1 is less than the centrifugal force, the material that does not meet the grinding requirements will be accelerated through the first radial acceleration hole 15 and ground again due to its large mass and large centrifugal force. The grinding process is the same as the above embodiment and will not be repeated.

[0046] As shown in FIG8 , the present invention further provides a second embodiment based on the above embodiment.

[0047] The dispersion wheel 1 is not provided with a central hole 10. When a dispersion wheel of this structure is adopted, a separator cannot be provided. Other structures and grinding processes are the same as those in the above embodiment and will not be described in detail.

[0048] The above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents, and these modifications or replacements may cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A grinding and dispersing wheel capable of forming two dispersing speeds, characterized in that: The dispersion wheel is provided with first radial acceleration holes evenly along the circumferential direction of the dispersion wheel, and second radial acceleration holes independent of each other are provided between two adjacent first radial acceleration holes. The dispersion wheel is also provided with feed holes in the axial direction which are respectively connected with the first radial acceleration holes and the second radial acceleration holes. The feed holes along the axial direction of the dispersion wheel enable the first radial acceleration holes and the second radial acceleration holes to respectively form acceleration paths with different lengths to produce two different dispersion speeds.

2. The grinding and dispersing wheel capable of forming two dispersing speeds according to claim 1, characterized in that: The distances from the feed holes on the first radial acceleration hole and the second radial acceleration hole to the center of the dispersion wheel rotating shaft are different.

3. The grinding and dispersing wheel capable of forming two dispersing speeds according to claim 1, characterized in that: Each of the first radial acceleration hole and the second radial acceleration hole feed hole is respectively located on circles of different radii with the dispersion wheel rotation axis as the center.

4. The grinding and dispersing wheel capable of forming two dispersing speeds according to claim 3, characterized in that: The radius of the circle where the feed holes on the first radial acceleration hole are located is greater than the radius of the circle where the feed holes on the second radial acceleration hole are located.

5. The grinding and dispersing wheel capable of forming two dispersing speeds according to claim 1, characterized in that: The second radial acceleration hole comprises a through hole or a blind hole arranged along the radial direction of the dispersion wheel.

6. The grinding and dispersing wheel capable of forming two dispersing speeds according to claim 1, characterized in that: The feed holes on the first radial acceleration hole and the feed holes on the second radial acceleration hole are arranged on one side or both sides of the dispersion wheel.

7. The grinding and dispersing wheel capable of forming two dispersing speeds according to any one of claims 1 to 6, characterized in that: The dispersion wheel further comprises a central hole coaxial with the dispersion wheel rotation axis, and the central hole is connected with the first radial acceleration hole through the separation hole.

8. The grinding and dispersing wheel capable of forming two dispersing speeds according to claim 7, characterized in that: The first radial acceleration holes and the second radial acceleration holes are evenly distributed around the central hole.

9. The grinding and dispersing wheel capable of forming two dispersing speeds according to claim 7, characterized in that: The grinding and dispersing wheel also includes a separator arranged in the center hole of the dispersing wheel. An axially closed separation chamber is formed between the separator and the center hole. The separation chamber is connected with the hollow rotating shaft through the separator.

10. The grinding and dispersing wheel capable of forming two dispersing speeds according to claim 7, characterized in that: The width of the first radial acceleration hole in the circumferential direction of the dispersion wheel is greater than the width of the second radial acceleration hole in the circumferential direction of the dispersion wheel.

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