CN2070660U

CN2070660U - Portable belt type drinding machine

Info

Publication number: CN2070660U
Application number: CN 90216388
Authority: CN
Inventors: 孙舍利; 方炯杰
Original assignee: NINGBO CITY DESIGN INST OF ELECTROMECHANICAL INDUSTRY
Current assignee: NINGBO CITY DESIGN INST OF ELECTROMECHANICAL INDUSTRY
Priority date: 1990-07-11
Filing date: 1990-07-11
Publication date: 1991-02-06

Abstract

The utility model relates to a portable belt type grinding machine, comprising a handle on a holding part, a switch, a casing and an outer cover plate. The portable belt type grinding machine also comprises a motor, a synchronous tooth-shaped belt and a driving wheel assembly of a grinding belt which are arranged on a motor driving part, two guide wheel assemblies and a tension wheel assembly which are arranged on a grinding belt transmission part. An annular grinding belt wraps outside the driving wheel of the grinding belt, the guide wheel, the tension wheel and a felt. When the power supply is put through, the portable belt type grinding machine is pushed by hand to move in uniform speed in order to grind the surface of metal or non-metal. The portable belt type grinding machine replaces sand paper for polishing and is especially suitable to be used in large-area processing. The portable belt type grinding machine can reduce the labor intensity for workers and can improve the quality of the surface be processed. The portable belt type grinding machine is suitable to be used for polishing and shaping furniture, office desks and the surface with high quality requirement.

Description

Portable belt grinder

The utility model is used for the shaping polishing machinery of metal and nonmetallic materials other part surface manual polishing device, particularly case goods.

Along with improving constantly of culture, living standard, people are more and more higher for the requirement of commodity good looking appearance, as processing such as civilian furniture, office desk and chair, paint, all can't do without this procedure of polishing shaping, past carpenter, lacquerer use coated abrasive working, and this method wastes time and energy, labour intensity is big, quality is unstable.Present sanding machine is to utilize eccentric shaft to make the chassis swing polish processing, and its disadvantage is to polish by the timber natural grain, on the contrary influence polishing quality.

The purpose of this utility model is to avoid the deficiencies in the prior art and the shaping machinery that proposes a kind of novelty is portable belt grinder, and it can reduce labor intensity greatly, improves suface processing quality.

Description of drawings.

Fig. 1 sheds structural representation behind the outer cover plate for the utility model.

Fig. 2 is the A--A cutaway view of Fig. 1.

Fig. 3 is that the B of Fig. 2 is to view.

Be described in detail according to above-mentioned accompanying drawing embodiment below.

The embodiment of portable belt grinder (referring to Fig. 1--3) is made up of grip portions, motor-driven part, abrasive band running part three big parts.

Grip portions has the carrying handle (3) of a bakelite system, is used for the switch (2) of break-make power supply to be contained on the handle (3), and the housing (11) that is connected with handle (3) is material with aluminium, integral casting forming, perhaps,, can serve as a contrast with iron plate in order to gain in strength with the engineering plastics injection mo(u)lding.Housing (11) has the die cavity of the motor-driven of being provided with part, abrasive band running part, and two boss (6) are arranged in the die cavity, and outer cover plate (18) is exactly to be connected in the screw of two boss (6) by screw.

The motor driving part branch comprises the motor (10) that is arranged on housing (11) limit, and this motor adopts the good series excited machine of starting characteristic, and power is 120～250 watts, connects with switch (2).The abrasive band drive wheel assemblies (4) that power input is connected with housing (11) by the synchronous cog belt (1) on motor (10) output shaft.

The abrasive band running part has two groups of guide wheel assemblies (12) that are connected with housing (11) and tensioning wheel assembly (8), tensioning wheel assembly (8) is connected with housing (11) by connecting plate (13), screw (19), unclamp screw (19), tensioning wheel assembly (8) just slides together with the kidney slot (20) of connecting plate (13) along housing (11), thereby reaches best tensioning degree.The downside on housing (11) base is bonded with felt (7), wide 110 millimeters endless abrasive belt (9) is centered around outside abrasive band driving wheel (unnumbered among the figure), directive wheel (15), regulating wheel (unnumbered among the figure), the felt (7), felt (7) lower horizontal face must protrude the line of directive wheel (15) regulating wheel face of cylinder minimum point, protrude 4 millimeters approximately, abrasive band when being convenient to work like this (9) are close to working surface.

Abrasive band drive wheel assemblies (4), guide wheel assemblies (12), tensioning wheel assembly (8) are respectively by the bearing pin (14) that is connected with housing (11), sealed bearing (16) is equipped with at bearing pin (14) two ends, the directive wheel (15) of abrasive band made of iron driving wheel, iron or aluminum, regulating wheel are supported on bearing (16) outer ring, bearing pin (14) all adopts interference fit with bearing (16) inner ring, abrasive band driving wheel, directive wheel (15), regulating wheel and bearing (16) outer ring, and standard component shaft block ring (17) stop bit is equipped with in bearing pin (14) end.

The utility model is equipped with the bogie wheel (5) of hard rubber system in the below, right side of housing (11), it is hinged by rivet and housing (11) dual-side, plays the supporting positioning action in the sanding machine course of work, helps Even Grinding.

About 22 * 16 * 15 (length * height * wide) of appearance and size of the present utility model centimetre can carry out the figuring of surface polishing processing of metal or nonmetallic materials by the transposing of endless abrasive belt (9).The transposing of endless abrasive belt (9) reaches by changing the position of regulating wheel in kidney slot (20).

The course of work of sanding machine is, earlier sanding machine is carried in hand, press switch (2) and connect power supply, the rotation of motor (10) rotates the abrasive band driving wheel by synchronous cog belt (1), thereby the linear velocity that makes the endless abrasive belt (9) that is contained on the driving wheel of abrasive band make 7 meters/per second rotatablely moves, and lentamente the abrasive band (9) under the felt (7) flatly is placed on the surface of workpiece to be processed then, pushes ahead evenly again, for timber, can polish along the natural grain of timber.

This portable belt grinder is with the manual sand paper operation of electronic replacement, can alleviate working strength of workers greatly, can improve suface processing quality again, the enforcement simple in structure of this sanding machine is easy, is a kind of machining tool that metal or nonmetallic materials is carried out high efficiency reconditioning polishing.

Claims

1, a kind of portable belt grinder of being made up of grip portions, motor-driven part, abrasive band running part is characterized in that:

A, grip portions comprise handle (3), switch (2) is contained on the handle (3), the housing (11) that is connected with handle (3) has the die cavity of the motor-driven of being provided with part, abrasive band running part, two boss (6) are arranged in the die cavity, and outer cover plate (18) is connected in the screw of two boss (6) by screw;

B, motor driving part branch comprise the motor (10) that is arranged on housing (11) limit, the abrasive band drive wheel assemblies (4) that power input is connected with housing (11) by the synchronous cog belt on the output shaft (1);

C, abrasive band running part have two groups of guide wheel assemblies (12) that are connected with housing (11) and tensioning wheel assembly (8), tensioning wheel assembly (8) is connected with housing (11) by connecting plate (13), the downside on housing (11) base is bonded with felt (7), felt (7) lower horizontal face must protrude the line of directive wheel, regulating wheel face of cylinder minimum point, and endless abrasive belt (9) is centered around outside abrasive band drive wheel assemblies (4), guide wheel assemblies (12), tensioning wheel assembly (8), the felt (7).

2, portable belt grinder as claimed in claim 1, it is characterized in that abrasive band drive wheel assemblies (4), guide wheel assemblies (12), tensioning wheel assembly (8) are equipped with sealed bearing (16) by the bearing pin (14) that is connected with housing (11), bearing pin (14) two ends respectively, abrasive band driving wheel (unnumbered among the figure), directive wheel (15), regulating wheel (unnumbered among the figure) are supported on bearing (16) outer ring, and shaft block ring (17) is equipped with in bearing pin (14) end.

3, portable belt grinder as claimed in claim 1 is characterized in that bogie wheel (5) is equipped with in the below, right side of housing (11), and it is hinged by rivet and housing (11) dual-side.