CN211193452U - High-efficient grinding brush - Google Patents

Abstract

The utility model discloses a high-efficiency grinding brush, belonging to the field of brushes, comprising a shaft, an elastic support piece, a hair planting body and a pressing piece; a shaft shoulder is arranged at one end part of the shaft, the elastic supporting piece is in a truncated cone shape, the elastic supporting piece is coaxially sleeved on the shaft shoulder, and the small end of the elastic supporting piece faces outwards; the outer wall of the hair planting body is provided with brush wires, and the inner wall of the hair planting body is matched with the outer wall of the elastic supporting piece; the pressing piece comprises a pressing plate and a screw, a threaded hole is formed in the end face, provided with one end of the shaft shoulder, of the shaft, the threaded hole is matched with the screw, a through hole matched with the screw is formed in the middle of the pressing plate, and the pressing plate is abutted to the end face of the side wall, facing the shaft, of the hair planting body. The utility model has the advantages of simple structure and reasonable design, can effectual reduction vibration be big, improve the grinding effect and reduce the cost of changing the brush silk.

Description

High-efficient grinding brush

Technical Field

The utility model relates to a brush field, in particular to high-efficient grinding brush.

Background

The grinding brush is a brush made by arranging brush wires closely together, then putting the brush wires into a specific die, making the brush wires into brush wheels one by a steel sheet through a punching machine, and then installing a plurality of brush wheels on a roller shaft.

However, when the existing grinding brush is operated, since the ground workpiece is mostly a hard object, such as metal, the ground workpiece surface is often uneven, so that the operator may vibrate when using the grinding machine, and the operator is difficult to control the grinding machine, and after long-time use, hand numbness, shaking and other phenomena are easily generated, so that the grinding effect is affected.

Simultaneously, among the current grinding brush, the brush wheel adopts non-detachable mode fixed connection such as welding more with the roller, consequently when the brush silk wearing and tearing on the brush wheel need be changed, only can be with the whole changes of brush wheel and roller, and this use cost that leads to grinding brush risees.

SUMMERY OF THE UTILITY MODEL

Big, influence grinding effect and change the problem that the brush silk is with high costs when the grinding brush to prior art existence uses, the utility model aims to provide a high-efficient grinding brush.

In order to achieve the above purpose, the technical scheme of the utility model is that:

an efficient grinding brush comprises a shaft, an elastic supporting piece, a hair planting body and a pressing piece; a shaft shoulder is arranged at one end of the shaft, the elastic supporting piece is in a truncated cone shape, the elastic supporting piece is coaxially sleeved on the shaft shoulder, and the small end of the elastic supporting piece faces outwards; the outer wall of the hair planting body is provided with brush wires, and the inner wall of the hair planting body is matched with the outer wall of the elastic supporting piece; the pressing piece comprises a pressing plate and a screw, a threaded hole is formed in the end face, provided with one end of the shaft shoulder, of the shaft, the threaded hole is matched with the screw, a through hole matched with the screw is formed in the middle of the pressing plate, and the pressing plate faces the side wall of the shaft and is abutted to the end face of the hair planting body.

Further, the inner wall of the hair planting body is provided with a plurality of axial convex edges which are uniformly distributed in the circumferential direction, the axial convex edges are straight, a plurality of axial grooves which are uniformly distributed in the circumferential direction are formed in the outer wall of the elastic supporting piece, and the axial convex edges correspond to the axial grooves in quantity one to one.

Preferably, the cross section of the axial convex edge is semicircular.

Preferably, the material of the hair planting body is metal or hard plastic.

Preferably, the elastic support is made of polyurethane resin or rubber.

Furthermore, a plurality of buffer holes which are uniformly distributed are formed in the elastic supporting piece, and the buffer holes are arranged in the direction parallel to the axis of the elastic supporting piece.

Preferably, the plurality of buffer holes are distributed in a honeycomb shape.

By adopting the technical scheme, due to the arrangement of the elastic supporting piece, when the grinding machine is operated, the vibration of the brush wires and the hair planting body, which is generated due to the uneven surface of the workpiece, can be effectively filtered and damped by the elastic supporting piece, so that the vibration received by the shaft and the grinding machine is greatly reduced, the arm of an operator is ensured not to be influenced as much as possible, the working efficiency is improved, and the grinding effect is ensured; and because the setting of the conical junction surface between elastic support piece and the hair planting body, needn't set up complicated fixed knot and construct, only need to compress tightly the hair planting body on elastic support piece through the compressing action of screw and pressure disk, thus has realized the needs that can dismantle and install fast between hair planting body and the elastic support piece, guaranteed only need change the hair planting body after the brush silk wearing and tearing can, have effectively reduced use cost, and because elastic support piece's elastic deformation attribute, the manufacturing accuracy requirement of the conical junction surface that elastic support piece and hair planting body combined together is low, easy to produce.

Drawings

Fig. 1 is a schematic cross-sectional view of the present invention;

FIG. 2 is a schematic cross-sectional view taken along line A-A of FIG. 1;

fig. 3 is a schematic structural view of the hair-planting body of the present invention.

In the figure, 1-shaft, 11-shaft shoulder, 12-threaded hole, 2-elastic supporting piece, 21-buffer hole, 3-hair planting body, 31-axial convex edge, 4-brush wire, 5-pressing plate and 6-screw.

Detailed Description

The following describes the present invention with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features related to the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

As shown in fig. 1 and 2, a high-efficiency grinding brush comprises a shaft 1, an elastic support member 2, a hair-planting body 3 and a pressing member; wherein the shaft 1 is made of metal, such as steel; one end of the shaft 1 is provided with a shaft shoulder 11, and the other end of the shaft 1 is used for being connected with the output end of the grinding machine to obtain a rotating torque to drive the grinding brush to rotate and grind the workpiece.

In the embodiment, the elastic supporting piece 2 is in a truncated cone shape, the middle part of the elastic supporting piece 2 is provided with a shaft hole, the inner diameter of the shaft hole is matched with the outer diameter of the shaft shoulder 11, the matching refers to the tolerance size of the shaft hole and the shaft shoulder under the matching, and the elastic supporting piece 2 has elasticity, so the diameter of the shaft hole is smaller than that of the shaft shoulder 11 in the embodiment, and the shaft hole and the shaft shoulder are in interference fit; the axis of the shaft hole coincides with the axis of the elastic supporting member 2, and the elastic supporting member 2 is sleeved on a shaft shoulder 11 at the end part of the shaft 1 through the shaft hole, so that in the installation orientation, the small end of the elastic supporting member 2 is kept outwards, the small end refers to the end with the smaller diameter of the elastic supporting member 2, and the outside refers to the outside facing away from the shaft 1.

In this embodiment, the whole body of the hair-planting body 3 is a hollow cylinder, a plurality of brush filaments 4 are arranged on the outer wall of the hair-planting body 3, and the brush filaments 4 are usually filiform objects made of metal or plastic material; however, in another embodiment, it is not excluded that the brush wires 4 are block-shaped grindstones made of hard materials, as long as it is sufficient that the brush wires 4 perform surface treatment work such as grinding, polishing, and the like on the workpiece in a rotating state.

In this embodiment, the inner wall of the hair-planting body 3 is a conical surface, and the inner wall of the hair-planting body 3 is adapted to the outer wall of the elastic supporting member 2, where the adaptation means that the tapers of the two are the same.

In this embodiment, the pressing member includes a pressing plate 5 and a screw 6, and meanwhile, a threaded hole 12 is formed in an end surface of the shaft 1 at the end provided with the shaft shoulder 11, the threaded hole is matched with the screw 6, and the matching means that the threaded hole 12 and the screw 6 can be screwed together; the middle part of the pressure plate 5 is provided with a through hole matched with the screw 6, the screw 6 passes through the through hole of the pressure plate 5 and then is screwed into the threaded hole 12 of the shaft 1, and after screwing, the side wall of the pressure plate 5 facing the shaft 1 is pressed on the end surface of the hair planting body 3.

When the grinding machine is used, the other end of the shaft 1 is required to be arranged on the output end of the grinding machine and can be detachably connected through splines and the like or can be connected in a non-detachable mode through welding and the like; sleeving the elastic support body 2 on the shaft shoulder 11 of the shaft 1, installing the hair planting body 3 provided with the brush wires 4 on the elastic support body 2, finally, penetrating the screw 6 through the through hole of the pressure plate 5 and then screwing the screw into the threaded hole of the shaft 1, screwing the screw 6 to press the pressure plate 5 on the end surface of the hair planting body 3, and at the moment, tightly matching the hair planting body 3 with the elastic support body 2 through a conical joint surface; the output end of the grinding machine transmits the rotation motion to the hair planting body 3 through the shaft 1 and the elastic supporting body 2, so as to drive the brush wire 4 to rotate in the circumferential direction, when the brush wire 4 is jumped by the surface of an uneven workpiece, the hair planting body 3 vibrates correspondingly, and after the vibration is continuously transmitted to the elastic supporting body 2, the vibration can be effectively eliminated by filtering due to the elasticity of the elastic supporting body, so that the vibration is prevented from being continuously transmitted to the shaft 1 and the grinding machine. When the brush wires 4 need to be replaced, only the screws 6 need to be disassembled, and the press plate 5 is taken down to replace the hair planting body 3, so that the elastic supporting body 2 and the shaft 1 do not need to be replaced, and the purpose of reducing the replacement cost of the brush wires 4 is achieved.

Therefore, according to the above working process, the elastic support body 2 not only needs to have elasticity to eliminate vibration but also needs to have certain hardness to transmit the torque of the shaft 1, and therefore, in the present embodiment, the material of the elastic support body 2 is preferably polyurethane resin, such as polyurethane elastomer (also called polyurethane rubber) in a subdivision class, which has high elasticity and strength, and excellent fatigue resistance and vibration resistance. Or rubber.

The bristle body 3 needs to maintain the roundness of the brush filaments 4 during rotation, so in this embodiment, the material of the bristle body 3 is selected from metal, such as steel, or hard plastic, such as ABS, PC, or PET. The brush filaments 4 are arranged on the steel hair-planting body 3 in a punching and hair-planting mode, or arranged on the hair-planting body 3 made of hard plastics in an injection molding and hair-planting mode.

Because the elastic support body 2 has elasticity, in order to prevent the problem that the conical joint surface between the elastic support body 2 and the hair planting body 3 is not tight enough and further the slipping between the elastic support body 2 and the hair planting body 3 occurs due to the deformation of the elastic support body; therefore, in the embodiment, a plurality of axial convex ridges 31 are uniformly distributed in the circumferential direction on the inner wall of the hair-planting body 3, and the axial convex ridges 31 are straight, as shown in fig. 3; correspondingly, be provided with a plurality of circumference evenly distributed's axial recess on elastic support piece 2's the outer wall, axial stupefied 31 and axial recess one-to-one in quantity, this embodiment axial stupefied 31, axial recess are 3. Meanwhile, in order to enable the axial convex edge 31 to be closely matched with the axial groove, the cross section of the axial convex edge 31 is semicircular, so that the axial convex edge 31 can be matched with the axial groove at any time in the axial direction, and the effect of transmitting torque after the axial convex edge 31 is matched with the axial groove can be achieved.

In order to prevent the impact force applied to the brush filaments 4 from being further transmitted to the shaft 1 and the grinding machine, in the embodiment, a plurality of buffer holes 21 are uniformly distributed on the elastic support member 2, and the buffer holes 21 are arranged in the direction parallel to the axis of the elastic support member 2; specifically, the plurality of buffer holes 21 are distributed in a honeycomb shape.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is to be accorded the full scope of the claims.

Claims (7)

1. The utility model provides a high-efficient grinding brush which characterized in that: comprises a shaft, an elastic supporting piece, a hair planting body and a pressing piece; a shaft shoulder is arranged at one end of the shaft, the elastic supporting piece is in a truncated cone shape, the elastic supporting piece is coaxially sleeved on the shaft shoulder, and the small end of the elastic supporting piece faces outwards; the outer wall of the hair planting body is provided with brush wires, and the inner wall of the hair planting body is matched with the outer wall of the elastic supporting piece; the pressing piece comprises a pressing plate and a screw, a threaded hole is formed in the end face, provided with one end of the shaft shoulder, of the shaft, the threaded hole is matched with the screw, a through hole matched with the screw is formed in the middle of the pressing plate, and the pressing plate faces the side wall of the shaft and is abutted to the end face of the hair planting body.

2. A high efficiency abrasive brush as defined in claim 1, wherein: the inner wall of the hair planting body is provided with a plurality of axial convex edges which are uniformly distributed in the circumferential direction, the axial convex edges are straight, a plurality of axial grooves which are uniformly distributed in the circumferential direction are formed in the outer wall of the elastic supporting piece, and the axial convex edges correspond to the axial grooves in quantity one to one.

3. A high efficiency grinding brush as defined in claim 2 wherein: the cross section of the axial convex edge is semicircular.

4. A high efficiency abrasive brush as defined in claim 1, wherein: the hair planting body is made of metal or hard plastic.

5. A high efficiency abrasive brush as defined in claim 1, wherein: the elastic supporting piece is made of polyurethane resin or rubber.

6. A high efficiency abrasive brush as defined in claim 1, wherein: the elastic support piece is provided with a plurality of buffer holes which are uniformly distributed, and the buffer holes are arranged along the axis direction parallel to the elastic support piece.

7. A high efficiency abrasive brush as defined in claim 6, wherein: the buffer holes are distributed in a honeycomb shape.

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