CN212762951U

CN212762951U - Cymbal type grinding wheel with good heat dissipation performance

Info

Publication number: CN212762951U
Application number: CN202021370244.6U
Authority: CN
Inventors: 姚瑶; 周斌; 李振定; 胡健
Original assignee: Ningbo Huijie Grinding Wheel Co ltd
Current assignee: Ningbo Huijie Grinding Wheel Co ltd
Priority date: 2020-07-13
Filing date: 2020-07-13
Publication date: 2021-03-23
Anticipated expiration: 2030-07-13

Abstract

The utility model relates to the technical field of grinding wheels, in particular to a cymbal type grinding wheel with good heat dissipation performance, which comprises a grinding wheel body and a plurality of heat dissipation devices, wherein a middle shaft of the grinding wheel body is provided with a mounting hole in an axial direction, and through holes with the same number as the heat dissipation devices are arranged in the grinding wheel body in the axial direction; every heat abstractor all includes locking screw, two stationary blades and two blades, and two stationary blades symmetrical arrangement are in the both sides of emery wheel body, are formed with the clamping area that is used for pressing from both sides tight emery wheel body through the locking screw that is located the through-hole between two stationary blades, and two blades be integrated into one piece respectively on two stationary blades, and the plane at blade place is mutually perpendicular with the plane at emery wheel body place. The structure is simple, and the installation is convenient; when the grinding wheel body rotates, the blades generate airflow outwards along the radial direction of the grinding wheel body, so that the heat dissipation efficiency of the working part of the grinding wheel body is improved; the heat dissipation device can be reused, and the angle of the blades can be adjusted.

Description

Cymbal type grinding wheel with good heat dissipation performance

Technical Field

The utility model relates to a emery wheel technical field specifically is a good heat dissipation's cymbal type emery wheel.

Background

Cymbal type grinding wheels are generally tools with certain shapes and certain grinding capacity, which are made of abrasive materials (such as white corundum, brown corundum and the like) and bonding agents.

Although the abrasive has the advantages of high hardness, good wear resistance and the like, the service life of the grinding wheel can be greatly prolonged, in the using process, the grinding wheel rotates at high speed, the grinding wheel and an object to be cut generate heat due to friction, particularly when high-strength steel is cut, the temperature of the surface of the grinding wheel is very high, and the service life of the grinding wheel can be greatly reduced.

SUMMERY OF THE UTILITY MODEL

A primary object of the present invention is to provide a cymbal type grinding wheel with good heat dissipation, which can solve the above-mentioned problems of the prior art.

In order to achieve the above object, the utility model provides a following technical scheme: a cymbal type grinding wheel with good heat dissipation performance comprises a grinding wheel body and a plurality of heat dissipation devices, wherein a mounting hole is formed in the middle shaft of the grinding wheel body in an axially penetrating mode, and through holes the number of which is the same as that of the heat dissipation devices are formed in the grinding wheel body in an axially penetrating mode; every heat abstractor all includes locking screw, two stationary blades and two blades, two the stationary blade symmetrical arrangement is in the both sides of emery wheel body, is formed with the centre gripping district that is used for pressing from both sides tight emery wheel body through the locking screw that is located in the through-hole between two stationary blades, two the blade is respectively integrated connection on two stationary blades, just the plane at blade place is mutually perpendicular with the plane at emery wheel body place.

The beneficial effects of the utility model reside in that:

1. the utility model has simple structure and reasonable layout, and the two fixing pieces are symmetrically fixed on the two sides of the grinding wheel body through the locking screws, thereby realizing the installation and fixation of the blades;

2. when the grinding wheel body rotates, the blades also rotate along with the grinding wheel body, so that wind which is radially outward along the grinding wheel body is generated, the air flow around the grinding wheel body is greatly accelerated, the heat dissipation efficiency of the grinding wheel body is improved, and the service life of the grinding wheel body is prolonged;

3. after the locking screw is loosened, the angle of the blade can be adjusted in a rotating mode, and the optimal installation angle of the blade can be adjusted conveniently;

4. when the grinding wheel body needs to be replaced due to abrasion, the locking screw can be unscrewed, and the heat dissipation device is detached, so that the grinding wheel body can be repeatedly used, and the maintenance cost is reduced.

Preferably, a first fixing ring integrally extends from one of the fixing plates to a direction close to the grinding wheel body, the outer annular surface of the first fixing ring is matched with the inner annular surface of the through hole, and the axial length of the first fixing ring is smaller than that of the through hole; and a second fixing ring is integrally extended on the other fixing piece in the direction close to the grinding wheel body, the outer annular surface of the second fixing ring is axially matched with the inner annular surface of the first fixing ring in a sliding manner, an internal thread is arranged on the inner annular surface of the second fixing ring, the locking screw is in threaded connection with the inner annular surface of the second fixing ring, the radial length of the large end of the locking screw is greater than that of the inner annular surface of the first fixing ring, and the axial length of the second fixing ring is not greater than that of the through hole. The advantages are that: through mutually supporting of the first fixed ring and the second fixed ring, the installation accuracy of the blade can be improved, and the installation difficulty of the locking screw can be reduced.

Preferably, the sum of the axial lengths of the first fixing ring and the second fixing ring is greater than the axial length of the through hole. The advantages are that: on the basis that the axial length of the first fixing ring is smaller than that of the through hole, and the axial length of the second fixing ring is not larger than that of the through hole, when the sum of the axial lengths of the first fixing ring and the second fixing ring is larger than that of the through hole, a contact surface is ensured between the inner ring surface of the first fixing ring and the outer ring surface of the second fixing ring, and therefore assembly accuracy between the first fixing ring and the second fixing ring is ensured.

Preferably, the surface of the fixing piece connected with the first fixing ring, which is far away from the grinding wheel body, is provided with a holding groove for holding the large head end of the locking screw. The advantages are that: the receiving groove can play a role in protecting the locking screw.

Preferably, the number of the heat dissipating devices is three or four. The advantages are that: when the number of the heat dissipation devices is one or two, the heat dissipation efficiency is low; when the number of the heat dissipation devices is larger than four, the installation of the heat dissipation devices is complex, and the strength of the grinding wheel body can be influenced by the through holes formed in the grinding wheel body.

Drawings

Fig. 1 is a perspective view of a preferred embodiment of the present invention;

fig. 2 is a perspective exploded view of a heat sink according to a preferred embodiment of the present invention;

fig. 3 is a front view of a preferred embodiment of the present invention;

FIG. 4 is a cross-sectional view taken along A-A of FIG. 3;

fig. 5 is a partial enlarged view at I in fig. 4.

Detailed Description

The following description will further describe embodiments of the present invention with reference to the accompanying drawings. The following examples are only used to illustrate the technical solutions of the present embodiments more clearly, and the protection scope of the present invention is not limited thereby.

Referring to fig. 1 to 5, in an embodiment of the present invention, a cymbal type grinding wheel with good heat dissipation performance includes a grinding wheel body 1 and a plurality of heat dissipation devices 2, wherein a mounting hole 11 is axially formed through a middle shaft of the grinding wheel body 1, and through holes 12 are axially formed through the grinding wheel body 1, the number of which is the same as that of the heat dissipation devices 2; every heat abstractor 2 all includes locking screw 21, two stationary blades 22 and two blades 23, two stationary blades 22 symmetrical arrangement are in the both sides of emery wheel body 1, be formed with the clamping area that is used for pressing from both sides tight emery wheel body 1 through the locking screw 21 that is located the through-hole 12 between two stationary blades 22, two blades 23 respectively a body coupling on two stationary blades 22, and the plane at blade 23 place is mutually perpendicular with the plane at emery wheel body 1 place, when ensuring emery wheel body 1 to rotate, blades 23 can produce along the radial outside air current of emery wheel body 1.

In this embodiment, as shown in fig. 1, 2, and 5, a first fixing ring 24 integrally extends from one of the fixing plates 22 to a direction close to the grinding wheel body 1, an outer annular surface of the first fixing ring 24 matches with an inner annular surface of the through hole 12, and an axial length of the first fixing ring 24 is smaller than an axial length of the through hole 12 (as shown in fig. 5, if the axial length of the first fixing ring 24 is greater than the axial length of the through hole 12, the first fixing ring 24 will abut against the fixing plate 22 on the other side after assembly, which affects normal installation of the fixing plate 22). The integrative direction that is close to grinding wheel body 1 of going up on another stationary blade 22 has the solid fixed ring 25 of second, the outer anchor ring axial slip of the solid fixed ring 25 of second matches in the interior anchor ring of first solid fixed ring 24, be equipped with the internal thread on the interior anchor ring of the solid fixed ring 25 of second, locking screw 21 threaded connection is on the interior anchor ring of the solid fixed ring 25 of second, the radial length of locking screw 21 stub end is greater than the radial length of the interior anchor ring of first solid fixed ring 24, after guaranteeing to screw up locking screw 21, can form the grip block between two stationary blades 22. The axial length of the second fixing ring 25 is not greater than the axial length of the through hole 12, ensuring that the large end of the locking screw 21 can be sufficiently contacted with the outer end of the first fixing ring 24. Through mutually supporting between first solid fixed ring 24 and the solid fixed ring 25 of second, both can improve the installation accuracy and the stability of blade 23, can reduce the locking screw 21 installation degree of difficulty again, can also avoid locking screw 21 to lead to the fact wearing and tearing to emery wheel body 1.

In the present embodiment, as shown in fig. 5, on the basis that the axial length of the first fixing ring 24 is smaller than the axial length of the through hole 12, and the axial length of the second fixing ring 25 is not greater than the axial length of the through hole 12, when the sum of the axial lengths of the first fixing ring 24 and the second fixing ring 25 is greater than the axial length of the through hole 12, it is ensured that the inner ring surface of the first fixing ring 24 can always have a contact surface with the outer ring surface of the second fixing ring 25, and the inner ring surface of the first fixing ring 24 can always form a limit fit with the outer ring surface of the second fixing ring 25, thereby ensuring the assembly accuracy between the first fixing ring 24 and the second fixing ring 25.

In this embodiment, as shown in fig. 2, the surface of the fixing piece 22 connected to the first fixing ring 24, which is far away from the grinding wheel body 1, is provided with a receiving groove 26 for receiving the large end of the locking screw 21, so as to protect the locking screw 21.

In the present embodiment, the number of the heat dissipating devices 2 is preferably three or four (four in the drawings). When the number of the heat dissipation devices 2 is one or two, the heat dissipation efficiency is low; when the number of the heat dissipation devices 2 is larger than four, the installation is complicated, and the strength of the grinding wheel body 1 is affected by the through holes 12 formed in the grinding wheel body 1. When heat abstractor 2's quantity is three or four, its radiating efficiency is good, simple to operate, and it is low to emery wheel body 1 self intensity influence.

The working principle is as follows: as shown in fig. 5, the first fixing ring 24 is inserted into the through hole 12 from the lower side of the grinding wheel body 1, and the positioning accuracy of the first fixing ring 24 is improved because the outer annular surface of the first fixing ring 24 is matched with the inner annular surface of the through hole 12; the second fixing ring 25 is inserted into the first fixing ring 24 from the upper side of the grinding wheel body 1, and the positioning accuracy of the second fixing ring 25 is improved because the outer annular surface of the second fixing ring 25 is matched with the inner annular surface of the first fixing ring 24; finally, the locking screw 21 is screwed on the inner ring surface of the second fixing ring 25, and after the locking screw 21 is screwed, the two fixing pieces 22 are close to each other, so that the fixing pieces are clamped and fixed on the grinding wheel body 1, and the installation of the blade 23 is completed; when the grinding wheel body 1 rotates, the blades 23 can generate air flow outwards along the radial direction of the grinding wheel body 1, so that the heat dissipation of the working part of the grinding wheel body 1 is accelerated, and the service life of the grinding wheel body is prolonged. In the whole process, the installation and the operation are simple, and the installation is stable and reliable; when the locking screw 21 is unscrewed, the angle of the adjusting blade 23 can be rotated; when the locking screw 21 is unscrewed, the heat dissipation device 2 can be disassembled, so that the grinding wheel body 1 can be independently replaced at a later stage, and the maintenance cost is reduced.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A cymbal type grinding wheel with good heat dissipation performance comprises a grinding wheel body (1), wherein a mounting hole (11) axially penetrates through the middle shaft of the grinding wheel body (1), and the cymbal type grinding wheel is characterized by further comprising a plurality of heat dissipation devices (2), and through holes (12) with the same number as the heat dissipation devices (2) axially penetrate through the grinding wheel body (1); every heat abstractor (2) all includes locking screw (21), two stationary blades (22) and two blades (23), two stationary blade (22) symmetrical arrangement is in the both sides of emery wheel body (1), is formed with the grip block that is used for pressing from both sides tight emery wheel body (1) through locking screw (21) that are located through-hole (12) between two stationary blades (22), two blade (23) respectively a body coupling in two stationary blades (22), just the plane at blade (23) place is mutually perpendicular with the plane at emery wheel body (1) place.

2. The cymbal grinding wheel with good heat dissipation performance according to claim 1, wherein a first fixing ring (24) is integrally extended from one of the fixing pieces (22) in a direction close to the grinding wheel body (1), an outer circumferential surface of the first fixing ring (24) is fitted to an inner circumferential surface of the through hole (12), and an axial length of the first fixing ring (24) is smaller than an axial length of the through hole (12); a second fixing ring (25) integrally extends on the other fixing piece (22) in the direction close to the grinding wheel body (1), the outer ring surface of the second fixing ring (25) is axially matched with the inner ring surface of the first fixing ring (24) in a sliding mode, the locking screw (21) is connected to the inner ring surface of the second fixing ring (25) in a threaded mode, the radial length of the large end of the locking screw (21) is larger than that of the inner ring surface of the first fixing ring (24), and the axial length of the second fixing ring (25) is not larger than that of the through hole (12).

3. The cymbal grinding wheel with good heat dissipation performance as set forth in claim 2, wherein the sum of the axial lengths of the first fixing ring (24) and the second fixing ring (25) is greater than the axial length of the through hole (12).

4. Cymbal grinding wheel with good heat dissipation according to claim 3, characterized in that the surface of the fixing piece (22) connected to the first fixing ring (24) remote from the grinding wheel body (1) is provided with a receiving groove (26) for receiving the large end of the locking screw (21).

5. The cymbal grinding wheel with good heat dissipation performance according to any one of claims 1 to 4, wherein the number of the heat dissipating devices (2) is three or four.