CN2249147Y

CN2249147Y - Disc-type sand grinding device

Info

Publication number: CN2249147Y
Application number: CN 95222329
Authority: CN
Inventors: 俞世雄; 钟松柏; 徐志鸿
Original assignee: NINGBO UNIVERSAL ELECTRIC MACHINERY CO Ltd
Current assignee: NINGBO UNIVERSAL ELECTRIC MACHINERY CO Ltd
Priority date: 1995-09-26
Filing date: 1995-09-26
Publication date: 1997-03-12
Anticipated expiration: 2005-09-26

Abstract

The utility model discloses a disc type sand grinding device which is used by matching with an angle polishing machine, comprising a cover housing, wherein, the cover housing is connected with the polishing machine through a clamping ring; a roller shaft and a fan seat which are mutually close matched are arranged in the cover housing; an elastic sand disc is screwed with a connecting seat which deviates from the roller shaft, and a bearing is supported between the connecting seat and the fan seat; a dust suction mechanism collects dust through a dust emission opening. The power of the utility model is input from the polishing machine, and because the sand disc and the rotating center of the roller shaft deviate from each other, the sand disc move in the compound state of rotation and movement on a plane. The utility model overcomes the defect of dust flying and has the advantages of no skid phenomenon at the time of grinding, compact structure, convenient installation, etc.

Description

Disc type sand milling device

The utility model relates to a kind of annex of electric tool, particularly with the supporting use of electric angle grinder, be used for the sand milling device of flat surface grinding processing.

Sanding machine is as metal, timber, the surfacing processing usefulness of plastics and various construction materials, polishing of the prior art mechanism is the abrasive band structure, as the patent No. 90218388.4 disclosed " portable belt grinder ", the endless abrasive belt of its abrasive band running part is centered around on the drive wheel assemblies of abrasive band, by the driving wheel transmission of power, the directive wheel guiding, the regulating wheel tensioning makes abrasive band contact surface to be machined and pushes ahead evenly, reach the purpose of reconditioning polished surface, 1. its defective is because endless abrasive belt is a flexible member, will cause skidding just in case tensioning is malfunctioning during grinding, and the abrasive band is easy to wear, needs often transposing; 2. because of no dust exhaust apparatus, add the dust from flying in man-hour, polluted working environment, it is healthy to influence the operator.

Task of the present utility model is the defective at prior art, and design proposes a kind of emery disc structure of utilizing and overcomes skidding, and be provided with dust collection mechanism with the matching used disc type sand milling of electric angle grinder device.

Scheme of the present utility model is: disc type sand milling device comprises the case that is connected by collar with sanding machine bistrique neck, be provided with the drum shaft that is spirally connected with sanding machine bistrique axle in the case, its sanding element adopts elasticity emery disc structure, the elasticity emery disc is spirally connected with the Connection Block that departs from drum shaft, supports with bearing between Connection Block and the fan base; The sand milling device also is provided with dust collection mechanism.

Press the sand milling device of the utility model design, replace belt grinding with the emery disc structure, so no skidding; need not strainer, make designs simplification, add rational dust collection mechanism; overcome the defective of dust from flying, kept good working environment, the protection operator's is healthy.The design compares with known technology, also has compact conformation, characteristics such as easy for installation.

Accompanying drawing 1 provides structural representation of the present utility model.

By accompanying drawing embodiment the utility model is remake below and elaborate.

From accompanying drawing 1 as can be known, disc type sand milling device have one by two semi-involutions with the fastening one of attachment screw (8), be the case (1) of step, the collar (6) that the case top is provided with is used for being connected by screw with sanding machine bistrique neck.Being provided with the drum shaft (5) that is spirally connected with sanding machine bistrique axle in the case, is the driving element of input power.Drum shaft is provided with the fan base (3) of close-fitting outward, and the fan base upper and lower end is fixed with pressing plate (4), prevents the dust infringement.

Eccentric 2.5 millimeters through hole is up and down arranged in the fan base of described dust collection mechanism (3), the blade (2) that multi-disc die casting one is arranged on the seat, has dust-exhausting port (7) on the case, dust is discharged thus, and collect by the dust bag (not shown) that is sleeved on the dust-exhausting port, avoid the dust of discharging contaminated environment once more.

Described sanding element elasticity emery disc (8) is by the mutual bonding one of disk, foam sponge, the sand paper of ambroin system, the air suction opening (12) that has 10 millimeters of 8 φ on the emery disc, and be spirally connected with the Connection Block (10) that departs from (5) 2.5 millimeters of drum shafts, support with bearing (11) between this Connection Block and the fan base, respectively with the inside and outside circle close-fitting of bearing, bearing (ball) cover is made with pad, screw in the plane on the Connection Block, and the bottom is a flat department structure, makes clamping during for the assembling emery disc.

The supporting use of this sand milling device and electric angle grinder, but just can be connected after must removing earlier protective cover and grinding wheel, power is by electric angle grinder bistrique axle input drive roller shaft (5) rotation, through fan base (3), bearing (11), Connection Block (10) and then drive elasticity emery disc (8) motion, because elasticity emery disc (8) departs from mutually with the pivot of drum shaft (5), the high speed rotation of drum shaft drives the fan base rotation and produces eccentric force, so the compound motion that emery disc acquisition rotation and plane are moved is finished large-area planar grinding polishing work.

Claims

One kind with the matching used disc type sand milling of electric angle grinder device, comprise with sanding machine bistrique neck by the case (1) that collar (6) is connected, be provided with the drum shaft (5) and the sanding element that are spirally connected with sanding machine bistrique axle in the case, it is characterized in that:

A. described sanding element is elasticity emery disc (8);

B. the elasticity emery disc is spirally connected with the Connection Block (10) that departs from drum shaft, supports with bearing (11) between Connection Block and the fan base (3);

C. this sand milling device is provided with dust collection mechanism.
2. disc type sand milling device as claimed in claim 1, it is characterized in that described case (1) by two semi-involutions with the fastening one of attachment screw (9), be step.
3. disc type sand milling device as claimed in claim 1 is characterized in that described elasticity emery disc (8) by disk, foam sponge, the mutual bonding one of sand paper, has several air suction openings (12) on the emery disc.
4. disc type sand milling device as claimed in claim 1 is characterized in that described dust collection mechanism comprises and the fan base (3) of drum shaft (5) close-fitting that with the fan blade (2) of seat one, case is provided with dust-exhausting port (7).
5. disc type sand milling device as claimed in claim 4 is characterized in that being set with dust bag on the described dust-exhausting port (7).