Extra-large flow rotor grinding wheel

Abstract

The utility model provides an ultra-large flow rotor grinding wheel which comprises a bearing assembly component, a matching positioning component, a grinding bearing component, a covering grinding material component and an axial limiting component, and due to the design of the matching positioning component and the axial limiting component of the grinding wheel, the connection between the grinding wheel and a driving rotating shaft is more stable; the design of the grinding bearing component enables the grinding wheel to have a large grinding area, multiple parts of a rotor can be ground at the same time, the grinding efficiency is improved, the design of the front notch and the back notch enables the grinding wheel to meet the grinding requirements of rotors of different shapes and sizes, the tail edges of the front notch and the back notch are provided with the flow guide ring faces, and the grinding effect is improved. The grinding fluid drainage device can guide the drainage process of grinding fluid, reduces flowing of the grinding fluid to the surface of the driving rotating shaft, effectively prevents corrosion and abrasion of the driving rotating shaft, keeps a grinding area clean, and has the advantages of being stable in structure, high in grinding efficiency, high in adaptability, good in drainage performance, easy to maintain and the like.

Description

Technical Field

[0001] The utility model relates to a metal-based composite material, in particular to an ultra-large flow rotor grinding wheel. Background Art

[0002] Patent document CN204997541U discloses a rotor forming CBN grinding wheel, which can be used for grinding large flow rotors. It includes a disc-shaped base wheel, a center hole is provided at the axis of the base wheel, a group of through holes are evenly distributed on the base wheel with its axis as the center line, an annular grinding body is provided on the outside of the base wheel, a profile for grinding is provided on the outside of the grinding body, both sides of the profile are provided with inwardly arranged concave curved surfaces, a group of cutting grooves are evenly distributed on the circumference of both sides of the profile, and the cutting grooves on the same side of the profile rotate in the same direction. The grinding wheel has low loss during the grinding process and can maintain sharpness. No dressing is required during the processing process, the processing efficiency and service life are high, and the abrasive wear and passivation, increased grinding resistance, burning and clogging are prevented. It is suitable for high-speed grinding and can save the expensive cost of reuse and base processing. However, the grinding body of this grinding wheel adopts a straight end structure, which makes it easy for the grinding fluid to flow toward the drive shaft during the discharge process. After long-term operation, the drive shaft is corroded, causing the grinding wheel to shift position and affecting the grinding performance. Therefore, it is necessary to optimize the structure of this grinding wheel to overcome the above defects. Utility Model Content

[0003] The utility model aims to provide a super large flow rotor grinding wheel to improve its grinding performance.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] An ultra-large flow rotor grinding wheel, comprising:

[0006] A support assembly member having an assembly space therein;

[0007] A matching and positioning member is formed in the supporting assembly member and is adapted to the shape of the driving shaft. The supporting assembly member can be fixedly connected to the driving shaft through the matching and positioning member, and the driving shaft drives the supporting assembly member to rotate;

[0008] A grinding bearing member, which is formed in the supporting assembly member and corresponds to the position of the matching positioning member, can rotate together with the supporting assembly member, and has a bearing space inside;

[0009] A covered abrasive member, the covered abrasive member is formed on a grinding bearing member, the grinding bearing member carries the covered abrasive member, and the covered abrasive member performs a grinding process on the rotor;

[0010] An axial limiting component is formed on the supporting assembly component and is adapted to the shape of the driving shaft. The axial limiting component limits the position of the supporting assembly component on the driving shaft.

[0011] Specifically, the support assembly component includes:

[0012] The supporting cylinder shell is made of a metal cylinder, and has an assembly shaft hole in the middle. The assembly shaft hole passes through both ends of the supporting cylinder shell and extends along the axial direction of the supporting cylinder shell. The matching positioning component is formed on the inner wall of the supporting cylinder shell, the grinding bearing component is formed on the outer wall of the supporting cylinder shell, and the axial limiting components are formed on both axial ends of the supporting cylinder shell.

[0013] The matching and positioning components include:

[0014] A matching convex ring is formed on the inner wall of the supporting cylinder shell, extends along the circumferential direction of the supporting cylinder shell, and protrudes radially toward the inner side of the supporting cylinder shell. Positioning shoulders matching the shape of the driving shaft are formed at both ends of the matching convex ring, and a position avoidance opening matching the shape of the driving shaft is formed in the middle of the matching convex ring;

[0015] A group of positioning bolt holes are provided, each of which penetrates through both ends of the matching convex ring along the axial direction and is arranged sequentially along the circumference of the matching convex ring. The matching convex ring can be fixedly connected to the driving shaft by a locking bolt adapted thereto, so that the driving shaft drives the supporting cylinder shell to rotate through the matching convex ring.

[0016] In one embodiment of the utility model, the matching convex ring is located in the axial middle of the supporting cylinder shell, so that the joint portion between the supporting cylinder shell and the driving shaft is centered.

[0017] The grinding load-bearing component comprises:

[0018] A bearing flange, which is formed on the outer wall of the supporting shell, extends along the circumference of the supporting shell, and protrudes radially toward the outside of the supporting shell, and can rotate together with the supporting shell;

[0019] A front notch, which is formed on the front outer wall of the bearing flange and has an arc-shaped cross section;

[0020] The back recess is formed on the back outer wall of the bearing flange, and its cross section is arc-shaped, its curvature is smaller than that of the front recess, and its width is smaller than that of the front recess.

[0021] The covered abrasive member comprises:

[0022] The grinding shell layer is made of cubic boron nitride particles and is attached to the outer walls of the bearing flange, the front recess and the back recess. When the bearing flange rotates, the grinding shell layer grinds the rotor.

[0023] In one embodiment of the present invention, the two ends of the grinding shell layer are covered on the two ends of the supporting cylinder shell, so that the middle part of the grinding shell layer is tightly combined with the bearing flange, the front recess and the back recess.

[0024] The axial limiting component includes:

[0025] A pair of limiting flanges are provided, each limiting flange is formed at both ends of the supporting cylinder shell, extends along the circumference of the supporting cylinder shell, and protrudes axially toward the outside of the supporting cylinder shell. The limiting flanges limit the axial ends of the supporting cylinder shell to prevent the edges of the two ends of the grinding shell from abutting against the driving shaft, thereby preventing it from cracking due to axial pressure.

[0026] In one embodiment of the utility model, the circumference of the load-bearing flange and the circumference of the matching convex ring are offset from each other and are offset toward the back side of the supporting cylinder shell.

[0027] In one embodiment of the present invention, the connection parts between the front recess and the back recess and the outer wall of the bearing flange are arc-shaped structures.

[0028] In one embodiment of the utility model, the end edges of the front recess and the back recess have guide annular surfaces, and the guide surfaces are inclined toward the outside of the front recess and the back recess, which can guide the discharge process of the grinding fluid and reduce its flow to the surface of the driving shaft.

[0029] The advantages of the utility model are:

[0030] The design of the grinding wheel matching positioning component and the axial limiting component makes the connection between the grinding wheel and the driving shaft more stable, effectively preventing the grinding wheel from shaking and deflecting during the grinding process. The design of the grinding bearing component enables the grinding wheel to have a larger grinding area, and can grind multiple parts of the rotor at the same time, thereby improving the grinding efficiency. The covered abrasive component is made of cubic boron nitride particles, which has high hardness and wear resistance, can maintain sharpness for a long time, and further improves the grinding efficiency. The design of the front and back recesses enables the grinding wheel to adapt to the grinding needs of rotors of different shapes and sizes. The end edges of the front and back recesses have guide annular surfaces, which can guide the drainage process of the grinding fluid, reduce the flow of the grinding fluid to the surface of the driving shaft, effectively prevent corrosion and wear of the driving shaft, and also keep the grinding area clean. It has the advantages of stable structure, high grinding efficiency, strong adaptability, good drainage performance and easy maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of the super-large flow rotor grinding wheel proposed by the utility model;

[0032] Figure 2 It is a schematic diagram of the cross-sectional structure of the grinding wheel. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical scheme and advantages of the embodiment of the utility model clearer, the technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. The components of the embodiment of the utility model generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiment of the utility model provided in the drawings is not intended to limit the scope of the utility model claimed for protection, but merely represents the selected embodiment of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.

[0034] like Figure 1 , Figure 2 As shown, the ultra-large flow rotor grinding wheel proposed in the utility model includes a supporting assembly component, a matching positioning component, a grinding bearing component, a covered abrasive component and an axial limiting component. The supporting assembly component has an assembly space. The matching positioning component is formed in the supporting assembly component and is adapted to the shape of the driving shaft. The supporting assembly component can be fixedly connected to the driving shaft through the matching positioning component, and the driving shaft drives the supporting assembly component to rotate. The grinding bearing component is formed in the supporting assembly component and corresponds to the position of the matching positioning component. It can rotate with the supporting assembly component and has a bearing space inside. The covered abrasive component is formed on the grinding bearing component, and the grinding bearing component carries the covered abrasive component, and the covered abrasive component grinds the rotor. The axial limiting component is formed on the supporting assembly component and is adapted to the shape of the driving shaft. The axial limiting component limits the position of the supporting assembly component on the driving shaft.

[0035] In Example 1, the supporting assembly component includes a supporting cylinder shell 100, which is made of a metal cylinder and has an assembly shaft hole in the middle. The assembly shaft hole passes through both ends of the supporting cylinder shell and extends axially along the supporting cylinder shell. The matching positioning component is formed on the inner wall of the supporting cylinder shell, the grinding bearing component is formed on the outer wall of the supporting cylinder shell, and the axial limiting component is formed on both axial ends of the supporting cylinder shell.

[0036] The matching positioning component includes a matching convex ring 210 and a positioning bolt hole 220. The matching convex ring is formed on the inner wall of the supporting cylinder shell. It extends along the circumference of the supporting cylinder shell and protrudes radially toward the inner side of the supporting cylinder shell. Positioning shoulders adapted to the shape of the driving shaft are formed at both ends of the matching convex ring. A avoidance opening adapted to the shape of the driving shaft is formed in the middle of the matching convex ring. A group of positioning bolt holes are provided. Each positioning bolt hole axially penetrates both ends of the matching convex ring and is arranged sequentially along the circumference of the matching convex ring. The matching convex ring can be fixedly connected to the driving shaft by a locking bolt adapted thereto, so that the driving shaft drives the supporting cylinder shell to rotate through the matching convex ring.

[0037] The grinding bearing component includes a bearing flange 310, a front recess 320 and a back recess 330. The bearing flange is formed on the outer wall of the supporting shell, extends along the circumference of the supporting shell, and protrudes radially toward the outside of the supporting shell, and can rotate with the supporting shell. The front recess is formed on the front outer wall of the bearing flange, and its cross section is arc-shaped. The back recess is formed on the back outer wall of the bearing flange, and its cross section is arc-shaped. Its curvature is smaller than that of the front recess, and its width is smaller than the width of the front recess.

[0038] The covered abrasive component includes a grinding shell 400, which is made of cubic boron nitride particles and is attached to the outer walls of the bearing flange, the front recess and the back recess. When the bearing flange rotates, the grinding shell grinds the rotor.

[0039] In this embodiment, the two ends of the grinding shell layer are covered on the two ends of the supporting cylinder shell, so that the middle part of the grinding shell layer is tightly combined with the bearing flange, the front recess and the back recess.

[0040] The axial limiting component includes a limiting flange 500, and a pair of limiting flanges are provided. Each limiting flange is formed at both ends of the supporting cylinder shell, and extends along the circumference of the supporting cylinder shell and protrudes axially toward the outside of the supporting cylinder shell. The limiting flanges limit the axial ends of the supporting cylinder shell to prevent the edges of the two ends of the grinding shell from abutting against the driving shaft, thereby preventing it from cracking due to axial pressure.

[0041] In Example 2, the supporting assembly component includes a supporting cylinder shell 100, which is made of a metal cylinder and has an assembly shaft hole in the middle. The assembly shaft hole passes through both ends of the supporting cylinder shell and extends axially along the supporting cylinder shell. The matching positioning component is formed on the inner wall of the supporting cylinder shell, the grinding bearing component is formed on the outer wall of the supporting cylinder shell, and the axial limiting component is formed on both axial ends of the supporting cylinder shell.

[0042] The matching positioning component includes a matching convex ring 210 and a positioning bolt hole 220. The matching convex ring is formed on the inner wall of the supporting cylinder shell. It extends along the circumference of the supporting cylinder shell and protrudes radially toward the inner side of the supporting cylinder shell. Positioning shoulders adapted to the shape of the driving shaft are formed at both ends of the matching convex ring. A avoidance opening adapted to the shape of the driving shaft is formed in the middle of the matching convex ring. A group of positioning bolt holes are provided. Each positioning bolt hole axially penetrates both ends of the matching convex ring and is arranged sequentially along the circumference of the matching convex ring. The matching convex ring can be fixedly connected to the driving shaft by a locking bolt adapted thereto, so that the driving shaft drives the supporting cylinder shell to rotate through the matching convex ring.

[0043] In this embodiment, the matching protruding ring is located in the axial middle of the supporting cylinder shell, so that the joint portion between the supporting cylinder shell and the driving shaft is centered.

[0044] The grinding bearing component includes a bearing flange 310, a front recess 320 and a back recess 330. The bearing flange is formed on the outer wall of the supporting shell, extends along the circumference of the supporting shell, and protrudes radially toward the outside of the supporting shell, and can rotate with the supporting shell. The front recess is formed on the front outer wall of the bearing flange, and its cross section is arc-shaped. The back recess is formed on the back outer wall of the bearing flange, and its cross section is arc-shaped. Its curvature is smaller than that of the front recess, and its width is smaller than the width of the front recess.

[0045] The covered abrasive component includes a grinding shell 400, which is made of cubic boron nitride particles and is attached to the outer walls of the bearing flange, the front recess and the back recess. When the bearing flange rotates, the grinding shell grinds the rotor.

[0046] In this embodiment, the two ends of the grinding shell layer are covered on the two ends of the supporting cylinder shell, so that the middle part of the grinding shell layer is tightly combined with the bearing flange, the front recess and the back recess.

[0047] The axial limiting component includes a limiting flange 500, and a pair of limiting flanges are provided. Each limiting flange is formed at both ends of the supporting cylinder shell, and extends along the circumference of the supporting cylinder shell and protrudes axially toward the outside of the supporting cylinder shell. The limiting flanges limit the axial ends of the supporting cylinder shell to prevent the edges of the two ends of the grinding shell from abutting against the driving shaft, thereby preventing it from cracking due to axial pressure.

[0048] In this embodiment, the circumference of the bearing flange and the circumference of the matching convex ring are offset from each other and are offset toward the back side of the supporting cylinder shell.

[0049] In this embodiment, the connection parts between the front recess and the back recess and the outer wall of the bearing flange are arc-shaped structures.

[0050] In this embodiment, the end edges of the front and back recesses have guide annular surfaces 600, which are inclined toward the outside of the front and back recesses to guide the discharge process of the grinding fluid and reduce its flow toward the surface of the driving shaft.

[0051] In the description of the present utility model, it should be noted that when terms such as "upper", "lower", "inner", "outer", "left", "right" and the like indicating orientation or positional relationship appear, it should be understood that the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use, or the orientation or positional relationship commonly understood by those skilled in the art, is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the equipment or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, when terms such as "first" and "second" appear, they are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. In the description of the present utility model, it should also be noted that, unless otherwise clearly specified and limited, terms such as "installation", "setting", and "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal connection of two elements. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

Claims

1. A super large flow rotor grinding wheel, characterized in that: include: A support assembly member having an assembly space therein; A matching and positioning member is formed in the supporting assembly member and is adapted to the shape of the driving shaft. The supporting assembly member can be fixedly connected to the driving shaft through the matching and positioning member, and the driving shaft drives the supporting assembly member to rotate; A grinding bearing member, which is formed in the supporting assembly member and corresponds to the position of the matching positioning member, can rotate together with the supporting assembly member, and has a bearing space inside; A covered abrasive member, the covered abrasive member is formed on a grinding bearing member, the grinding bearing member carries the covered abrasive member, and the covered abrasive member performs a grinding process on the rotor; An axial limiting component is formed on the supporting assembly component and is adapted to the shape of the driving shaft. The axial limiting component limits the position of the supporting assembly component on the driving shaft.

2. The super large flow rotor grinding wheel according to claim 1, characterized in that: The supporting assembly components include: The supporting cylinder shell is made of a metal cylinder, and has an assembly shaft hole in the middle. The assembly shaft hole passes through both ends of the supporting cylinder shell and extends along the axial direction of the supporting cylinder shell. The matching positioning component is formed on the inner wall of the supporting cylinder shell, the grinding bearing component is formed on the outer wall of the supporting cylinder shell, and the axial limiting components are formed on both axial ends of the supporting cylinder shell.

3. The super large flow rotor grinding wheel according to claim 2, characterized in that: The matching and positioning components include: A matching convex ring is formed on the inner wall of the supporting cylinder shell, extends along the circumferential direction of the supporting cylinder shell, and protrudes radially toward the inner side of the supporting cylinder shell. Positioning shoulders matching the shape of the driving shaft are formed at both ends of the matching convex ring, and a position avoidance opening matching the shape of the driving shaft is formed in the middle of the matching convex ring; A group of positioning bolt holes are provided, each of which penetrates through both ends of the matching convex ring along the axial direction and is arranged sequentially along the circumference of the matching convex ring. The matching convex ring can be fixedly connected to the driving shaft by a locking bolt adapted thereto.

4. The super large flow rotor grinding wheel according to claim 3, characterized in that: The grinding load-bearing component comprises: A bearing flange, which is formed on the outer wall of the supporting shell, extends along the circumference of the supporting shell, and protrudes radially toward the outside of the supporting shell, and can rotate together with the supporting shell; A front notch, which is formed on the front outer wall of the bearing flange and has an arc-shaped cross section; The back recess is formed on the back outer wall of the bearing flange, and its cross section is arc-shaped, its curvature is smaller than that of the front recess, and its width is smaller than that of the front recess.

5. The super large flow rotor grinding wheel according to claim 4, characterized in that: The covered abrasive member comprises: The grinding shell layer is made of cubic boron nitride particles and is attached to the outer wall of the bearing flange, the front recess and the back recess.

6. The super large flow rotor grinding wheel according to claim 5, characterized in that: The axial limiting component includes: A pair of limiting flanges are provided, each limiting flange is formed at both ends of the supporting cylinder shell, extends along the circumference of the supporting cylinder shell, and protrudes axially toward the outside of the supporting cylinder shell.

7. The super-large flow rotor grinding wheel according to claim 4, characterized in that: The circumference of the bearing flange and the circumference of the matching convex ring are mutually offset and are offset toward the back side of the supporting cylinder shell.

8. The super-large flow rotor grinding wheel according to claim 4, characterized in that: The connection parts between the front notch and the back notch and the outer wall of the bearing flange are arc-shaped structures.

9. The super-large flow rotor grinding wheel according to claim 4, characterized in that: The end edges of the front notch and the back notch are provided with flow guide annular surfaces, and the flow guide surfaces are inclined toward the outer sides of the front notch and the back notch.

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