Large-aperture heavy-load grinding wheel

Abstract

The large-aperture heavy-load grinding wheel comprises a wheel body, an installation connecting hole is formed in the circle center of the middle of the wheel body in a penetrating mode, an annular air channel is formed in the position, located on the outer side of the installation connecting hole, in the wheel body, and a set of corresponding air exchange openings are symmetrically formed in the surfaces of the upper side and the lower side of the wheel body. The annular air duct is formed in the position, located on the outer side of the installation connecting hole, in the wheel body, and the annular air duct communicates with the outside through the multiple sets of air exchange openings, so that the interior of the wheel body can be directly ventilated and cooled; and meanwhile, a relatively good cooling effect can be obtained for a mounting connecting hole with a relatively large hole diameter, and the situation that the cooling effect is reduced due to the fact that the hole diameter of the mounting connecting hole is too large and usable areas on the two sides of the wheel body are reduced is avoided.

Description

Technical Field

[0001] The utility model relates to the field of grinding wheels, in particular to a large-aperture heavy-load grinding wheel. Background Art

[0002] The heavy-duty grinding wheel will generate a lot of heat during use due to its large volume. This heat will affect the main body of the grinding wheel. If the heat can be dissipated in time, the life of the grinding wheel will be shortened during use, and there will be hidden dangers in the safety during use. For this reason, the application number is CN202022748439.6, which discloses a high-strength and durable heavy-duty grinding wheel. The technical solution adopted by the utility model is: it includes a cylindrical grinding wheel main body stable connection seat, and the upper center position of the grinding wheel main body stable connection seat is provided with a full-through center installation combination connection hole, and the upper end surface of the grinding wheel main body stable connection seat is provided with four rectangular main body heat dissipation safety connection grooves evenly distributed around the circumference, and the left and right sides of the main body heat dissipation safety connection groove are respectively provided with a second heat dissipation safety connection matching groove staggeredly distributed on the left and right sides, and the rear side of the grinding wheel main body stable connection seat is provided with four evenly distributed third heat dissipation safety connection matching grooves. The advantage of the utility model is that when in use, the heat generated during use can be efficiently dissipated on the basis of ensuring the overall structural strength, thereby ensuring that the overall durability of the grinding wheel is stronger during use, the overall service life is longer, and the safety during use is higher.

[0003] However, the above scheme still has certain defects. The inventors have found through research that in the above scheme, a number of heat dissipation grooves are opened on the surfaces of both sides of the grinding wheel connecting seat to increase the contact area between the grinding wheel and the external air to achieve the heat dissipation effect, but the heat inside the grinding wheel cannot be directly discharged. The heat dissipation efficiency needs to be relatively improved. At the same time, in some cases, when the grinding wheel connection aperture needs to be enlarged, the expansion of the aperture will also reduce the available area of ​​the connecting seat, thereby reducing the overall number and area of ​​the heat dissipation grooves, resulting in a further reduction in the heat dissipation effect.

[0004] How to invent a large-aperture heavy-load grinding wheel to improve these problems has become an urgent problem to be solved by technicians in this field. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a large-aperture heavy-load grinding wheel, which aims to improve the existing technology by opening a number of heat dissipation grooves on the surfaces of both sides of the grinding wheel connecting seat to increase the contact area between the grinding wheel and the external air to achieve the heat dissipation effect, but it is impossible to directly discharge the heat inside the grinding wheel, and the heat dissipation efficiency needs to be relatively improved. At the same time, in some cases, when it is necessary to expand the aperture of the grinding wheel connection, the expansion of the aperture will also reduce the available area of ​​the connecting seat, thereby reducing the overall number and area of ​​the heat dissipation grooves, resulting in further reduction of the heat dissipation effect.

[0006] The utility model is implemented as follows: a large-aperture heavy-load grinding wheel comprises a wheel body, a mounting connection hole is penetrated through the center of the middle part of the wheel body, an annular air duct is opened inside the wheel body outside the mounting connection hole, and a group of corresponding air exchange ports are symmetrically opened on the upper and lower side surfaces of the wheel body, and each of the air exchange ports is connected to the annular air duct.

[0007] In a preferred technical solution of the utility model, the number of the air exchange openings is multiple groups, and several groups of the air exchange openings are evenly distributed in annular shape and opened on the upper and lower surfaces of the wheel body and are all connected to the annular air duct.

[0008] In a preferred technical solution of the utility model, each of the air exchange ports extends spirally toward the annular air duct inside the wheel body to form an air exchange air duct.

[0009] In a preferred technical solution of the present utility model, the inner wall on one side of each of the air exchange ports is arranged as an inclined surface.

[0010] In a preferred technical solution of the present utility model, the number of groups of the air exchange ports is at least two.

[0011] In a preferred technical solution of the present utility model, the air exchange port and the annular air duct are located relatively closer to one side of the edge of the wheel body.

[0012] In a preferred technical solution of the utility model, a plurality of steel wire mesh skeletons evenly distributed in a ring shape with the center of the wheel body as the axis are fixedly connected between the inner walls of the annular air duct and the inner walls of the air exchange port.

[0013] The beneficial effects of the utility model are as follows: the utility model obtains a large-aperture heavy-load grinding wheel through the above-mentioned design. When in use, an annular air duct is opened inside the wheel body and located outside the installation connection hole, and the annular air duct is connected to the outside through a plurality of groups of air exchange ports, so that the inside of the wheel body can be directly ventilated and cooled. At the same time, a relatively good cooling effect can also be obtained for the installation connection holes with larger apertures, thereby avoiding the installation connection holes having too large apertures, which reduces the available area on both sides of the wheel body and reduces the cooling effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a schematic three-dimensional diagram of the overall structure provided by the embodiment of the utility model;

[0016] Figure 2 A schematic three-dimensional diagram of the overall cross-sectional structure along the axis provided by the embodiment of the utility model;

[0017] Figure 3 A schematic three-dimensional diagram of the overall vertical axis section structure provided by an embodiment of the utility model;

[0018] Figure 4 A schematic three-dimensional diagram of the overall vertical axial section without a wire mesh skeleton structure provided by the embodiment of the utility model;

[0019] Figure 5 It is a schematic three-dimensional diagram of the overall structure of the cross-section along the axis and the cross-section perpendicular to the axis provided by the implementation method of the utility model.

[0020] In the figure: 1-wheel body; 2-installation connection hole; 3-annular air duct; 4-air exchange port; 5-wire mesh frame. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figures 1 to 5 The utility model provides a technical solution: a large-aperture heavy-load grinding wheel, comprising a wheel body 1, a mounting connection hole 2 is penetrated at the center of the middle of the wheel body 1, an annular air duct 3 is opened inside the wheel body 1 and outside the mounting connection hole 2, and a group of corresponding air exchange ports 4 are symmetrically opened on the upper and lower surfaces of the wheel body 1, and each air exchange port 4 is connected to the annular air duct 3.

[0023] Furthermore, there are multiple groups of air exchange ports 4 , and several groups of air exchange ports 4 are evenly distributed in a ring shape and opened on the upper and lower surfaces of the wheel body 1 and are all connected to the annular air duct 3 .

[0024] When the wheel body 1 is integrally mounted on the output shaft of the driving device and the driving device drives the wheel body 1 to rotate as a whole, a low-pressure area is formed inside the annular air duct 3, and external air enters the annular air duct 3 through the air exchange ports 4 to squeeze out the air inside that has absorbed heat, thereby completing air circulation and achieving a cooling effect. By setting up several groups of air exchange ports 4, the air exchange speed can be increased and the cooling efficiency can be improved.

[0025] Furthermore, each air exchange port 4 extends spirally toward the annular air duct 3 inside the wheel body 1 to form an air exchange air duct.

[0026] By setting the air exchange port 4 as a spiral structure, the inner wall area of ​​the air exchange duct can be increased, and the increase in the inner wall area can further improve the heat dissipation effect.

[0027] Furthermore, the inner wall on one side of each air exchange port 4 is arranged as an inclined surface.

[0028] The inner wall of each air exchange port 4 away from the end communicating with the annular air duct 3 is arranged as an inclined surface, thereby expanding the opening area of ​​the air exchange port 4 and increasing the air intake volume, so as to improve the heat dissipation effect.

[0029] Furthermore, the number of groups of air exchange ports 4 is at least two.

[0030] By setting up no less than two groups of air exchange ports 4, it is ensured that the heat generated during the grinding of the wheel body 1 is quickly cooled down. When there are only two groups of air exchange ports 4, the two groups of air exchange ports 4 are symmetrically distributed about the axis of the mounting connection hole 2, and the spiral rotation angle of each air exchange port 4 is 90°, thereby ensuring a larger heat dissipation area.

[0031] Furthermore, the air exchange port 4 and the annular air duct 3 are located relatively closer to one side of the edge of the wheel body 1 .

[0032] Since the heat generated by the friction between the wheel body 1 and the object being polished is concentrated in the outer polishing part, the annular air duct 3 and the air exchange port 4 are arranged on the side close to the edge of the wheel body 1 to quickly cool down the heat, thereby reducing heat conduction.

[0033] Furthermore, a plurality of steel wire mesh skeletons 5 evenly distributed in a ring shape with the center of the wheel body 1 as the axis are fixedly connected between the inner walls of the annular air duct 3 and the inner walls of the air exchange port 4 .

[0034] By connecting several wire mesh frames 5 inside the annular air duct 3 and the air exchange ports 4, the structural strength of the hollow part inside the wheel body 1 can be strengthened to improve the stability during use and reduce the impact of the opening of the annular air duct 3 and several air exchange ports 4 on the overall structural strength of the wheel body 1.

[0035] Working principle: The wheel body 1 is installed and connected as a whole to one end of the output shaft of the driving device through the installation connection hole 2, and the wheel body 1 is driven by the driving device to rotate to grind the object to be grinded. During the grinding process, the wheel body 1 will generate heat due to friction. During the rotation of the wheel body 1, low air pressure is formed inside the annular air duct 3, and the relatively high-pressure air outside will flow into the annular air duct 3 and then squeeze out the hot air inside, thereby forming an air circulation to achieve the effect of cooling, so as to ensure stability during the grinding process. By opening an annular air duct 3 outside the installation connection hole 2 inside the wheel body 1, and connecting the annular air duct 3 with the outside through several groups of air exchange ports 4, a relatively high cooling effect can be obtained even for the installation connection hole 2 with a larger aperture, to avoid the installation connection hole 2 having a too large aperture, which reduces the available area on both sides of the wheel body 1 and reduces the cooling effect.

[0036] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A large-aperture heavy-duty grinding wheel, characterized in that: It includes a wheel body, a mounting connection hole is opened through the center of the middle part of the wheel body, an annular air duct is opened inside the wheel body outside the mounting connection hole, and a group of corresponding air exchange ports are symmetrically opened on the upper and lower surfaces of the wheel body, and each of the air exchange ports is connected to the annular air duct.

2. The large-aperture heavy-duty grinding wheel according to claim 1, characterized in that: The number of the air exchange openings is multiple groups, and several groups of the air exchange openings are evenly distributed in a ring shape and are opened on the upper and lower surfaces of the wheel body and are all connected to the annular air duct.

3. The large-aperture heavy-duty grinding wheel according to claim 1, characterized in that: Each of the air exchange ports extends spirally toward the annular air duct inside the wheel body to form an air exchange air duct.

4. The large-aperture heavy-duty grinding wheel according to claim 1, characterized in that: The inner wall on one side of each of the air exchange ports is arranged as an inclined surface.

5. The large-aperture heavy-duty grinding wheel according to claim 1, characterized in that: The number of groups of the air exchange ports is at least two.

6. The large-aperture heavy-duty grinding wheel according to claim 1, characterized in that: The air exchange port and the annular air duct are relatively closer to one side of the wheel body edge.

7. The large-aperture heavy-duty grinding wheel according to claim 1, characterized in that: A plurality of steel wire mesh skeletons evenly distributed in a ring shape with the center of the wheel body as the axis are fixedly connected between the inner walls of the annular air duct and the inner walls of the air exchange port.

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