CN2232336Y - Manual abrasive belt polishing machine - Google Patents

Abstract

A manual belt sander belongs to a material surface grinding and polishing device. The device is based on a 'portable belt sander', an abrasive belt position adjusting mechanism is additionally arranged at the joint of a grinding head mechanism and a lever arm, a tensioning mechanism is arranged at the right end of the lever arm, and the tensioning mechanism, a driving wheel at the left end of a motor and a part of the right end of the lever arm are arranged in a closed cavity formed by an upper shell and a lower shell; the axis of the contact wheel is in the same plane with the axis of the driving wheel and is vertical to the axis of the driving wheel, and the axis of the tension wheel is vertical to the axis of the driving wheel. The utility model discloses can adjust the position in abrasive band, tensioning abrasive band, convenient operation, simple structure extensively is used for the grinding and the polishing on metal or non-metal spare part, part surface.

Description

The hand resinder

The utility model belongs to material zero, parts surface polishing machinery.

On March 5th, 1988, University Of Chongqing's mechanical engineering one is comrade Huang Yun, and to Patent Office of the People's Republic of China's application utility model patent, application number is 88201470.6 with " portable abrasive belt grinding machine sanding machine ".Be awarded utility model patent on June 21st, 1989.This sanding machine comprises endless abrasive belt, bistrique part, abrasive band tensioning portion, abrasive band drive part, rotatable support arm and operating grip etc.It is power with the drive motors, drives the abrasive band motion through driving wheel.This device is when polishing, and the tensioning in abrasive band is unreliable can not be adjusted with the position abrasive band, makes troubles to operation.

The purpose of this utility model is at above-mentioned the deficiencies in the prior art, and a kind of hand resinder is provided.Position when this device can be adjusted belt grinding and the tensioning in abrasive band, reliable operation, and easy to operate.

For the purpose that realizes that foregoing invention is created, technical solution of the present utility model is to be provided with the abrasive band position adjusting mechanism in the left end junction of the right-hand member of the supporting arm of the grinding head mechanism of former " portable resinder " and the utility model lever arm, in the cavity that upper and lower casing constituted, and be positioned at the lever arm right-hand member and reset the abrasive band strainer, motor has been installed at the lower casing right-hand member.The abrasive band position adjusting mechanism is included in the right-hand member of supporting arm, along its length direction one groove is arranged, process a through hole at this groove right-hand member, this hole to and stretch out processing one stepped bore on the outer lever arm of lower casing, the handle type connector passes limiting gasket and above-mentioned two holes, and supporting arm and lever arm are coupled together.One hole is arranged at the bottom at the lever arm on the left side of handle type connector, and an end of spring is positioned at this hole, and its other end is positioned at the groove of supporting arm.Fixing wearing plate between supporting arm and abrasive band.The left arm of lever arm is movably connected in the draw-in groove of lower casing left end; The right-hand member hole of lever arm places between the regulating wheel of strainer and the regulating wheel on the axle, and stretches out upper casing, tilts to its bottom righthand side; Regulating wheel is contained in the lever arm right-hand member in pairs, and is symmetric arrangement with contact wheel, is positioned at the top of driving wheel, by the hole supporting of lever arm.Regulating wheel is vertical mutually with the axis of driving wheel.Processing is porose being positioned on the boss of regulating wheel left side lever arm bottom, in this hole another hole of processing on the crossbeam of right lower casing, between two holes, spring is housed, this spring and lever arm formation abrasive band strainer.Contact wheel mandrel axis and driving wheel axis are positioned at same plane, and orthogonal.The abrasive band is on contact wheel, regulating wheel and driving wheel.Motor left side axle head is connected with the lower casing right-hand member by the edge cover, and driving wheel is contained on the motor left end shaft, and upper and lower casing constitutes enclosed cavity, and makes abrasive band strainer, driving wheel and motor left side axle head in cavity.

The utility model can be adjusted the tensioning in the position and the abrasive band in abrasive band, reliable operation, easy to operate.

Fig. 1 is a front view of the present utility model,

Fig. 2 is this novel vertical view,

Fig. 3 is the A-A profile among Fig. 1,

Illustrated below in conjunction with accompanying drawing.

In Fig. 1 to Fig. 3:

1-contact wheel mandrel 11-lever arm 21-abrasive band

2-contact wheel 12-driving wheel 22-bearing

3-supporting arm 13-filter screen 23-rivet

4-spring 14-edge external threading 24-motor

5-captive nut 15-lower casing 25-bearing

6-screw of handle 16-garden pin

7-limiting gasket 17-wearing plate

8-pad 18-regulating wheel

9-spring 19-regulating wheel mandrel

10-upper casing 20-bearing partition

Grinding head mechanism of the present utility model comprises supporting arm [3], is contained in the contact wheel mechanism of supporting arm [3] left end.This mechanism is by contact wheel mandrel [1], is contained in the bearing [25] on this and is contained in contact wheel [2] on the bearing.The right-hand member upper surface of supporting arm [3] processes a rectangular slot, this groove right-hand member has a Tong Yuan hole, in this hole to and stretch out on the lever arm [11] outside the lower casing [15], processed hole, a stairstepping garden, handle a chain for binding criminals nail [6] passes limiting gasket [7], be connected with captive nut [5] behind hole, stairstepping garden on the supporting arm on hole, garden and the lever arm, the packing ring, process hole, a garden, between the rectangular slot of this hole and supporting arm, spring is housed in the bottom of the lever arm on the left side of screw of handle [6].Fixing wearing plate [17] on the supporting arm between supporting arm [3] and abrasive band [21].The supporting arm right-hand member is stuck in the open slot of lever arm left end, and the right-hand member afterbody of supporting arm [3] contacts with the left end bottom land of lever arm [11].The left end of lever arm [11] is connected with the draw-in groove hinge of lower casing left end by a garden pin [16], the right-hand member hole of lever arm [11] place between strainer regulating wheel [18] and the regulating wheel [18] the axle on, the right-hand member of lever arm [11] stretches out upper casing, tilts to its lower right.Its strainer comprises and is contained in lever arm [11] right-hand member in pairs, and be symmetrically distributed with contact wheel [2], be positioned at the regulating wheel [18] of driving wheel [12] top, on the boss of seat regulating wheel [18] left side lever arm [11] bottom, be processed with hole, a garden, this hole also process hole, a garden on the crossbeam of right lower casing [15], spring [9] is housed between this two hole.Regulating wheel [18] is mounted in pairs in the two ends that bearing [22] is gone up, bearing is contained in regulating wheel mandrel [19], and bearing partition [20] is housed between every end bearing and the bearing.Tension wheel shaft is vertical mutually with live axle, and contact wheel [2] axis and driving wheel [12] axis are positioned at same plane, and vertical mutually.Abrasive band [21] is on contact wheel [2], regulating wheel [18] and driving wheel [12].Driving wheel [12] is contained on motor [24] left end shaft, and the motor left end is loaded onto edge cover [14], loads onto filter screen [13] on the left side of edge cover [14], and the right-hand member of lower casing [15] is threaded with edge cover [14].Upper and lower casing [10], [15] constitute enclosed cavity, and make strainer, and the part of lever arm [11] right-hand member, motor [24] left end place in this cavity.The left end of upper casing is connected with hook with pad [8] by tubular rivet [23].Breather pipe is equipped with in the right side of motor, on its right-hand member power switch is housed.

Claims (2)

1. hand resinder, comprise the abrasive band, grinding head mechanism, strainer, driving mechanism, the abrasive band position adjusting mechanism, casing, be contained in the power switch on the motor and the filter screen of motor left part, it is characterized in that being provided with the abrasive band position adjusting mechanism in the junction of grinding head mechanism supporting arm right-hand member and lever arm left end, last, in the cavity that lower casing constituted, and be positioned at the lever arm right-hand member and reset the abrasive band strainer, the abrasive band position adjusting mechanism is included in the right-hand member of supporting arm, along its length direction one groove is arranged, process a through hole at this groove right-hand member, this hole to and stretch out processing one stepped bore on the outer lever arm of lower casing, the handle type connector passes limiting gasket and above-mentioned two holes, and supporting arm and lever arm are coupled together; One hole is arranged at the bottom at the lever arm that is positioned at the handle type connector left side, and an end of spring is positioned at this hole, and its other end is positioned at the groove of supporting arm; Fixing wearing plate between supporting arm and abrasive band; The left end of lever arm is movably connected in the draw-in groove of lower casing left end, and the right-hand member of lever arm places between the regulating wheel of strainer and the regulating wheel on the axle, and stretches out upper casing, tilts to its bottom righthand side; Regulating wheel is contained in the top of lever arm right-hand member, driving wheel in pairs, and is symmetric arrangement with contact wheel, is supported by the hole on the lever arm; Regulating wheel is vertical mutually with the axis of driving wheel, being positioned on the lever arm bottom boss on the two regulating wheel left sides processing porose, in this hole processing one hole on the right sill, between two holes, spring is housed; Contact wheel mandrel axis and driving wheel axis are positioned at same plane, and vertical mutually, and the abrasive band is on contact wheel, regulating wheel and driving wheel, and driving wheel is contained on the motor shaft, and the motor shaft left end is connected with the right-hand member of lower casing by the edge cover; Load onto upper casing at lower casing, upper and lower casing constitutes enclosed cavity, and driving wheel, strainer, motor left end are placed in this cavity.

2. portable resinder according to claim 1, the right-hand member that it is characterized in that the supporting arm of grinding head mechanism is stuck in the open slot of lever arm left end, its afterbody contacts with the bottom land of lever arm left end, along the length direction of supporting arm right-hand member process a rectangular slot, this groove right-hand member has a through hole; This hole hole, a stairstepping garden is arranged on the right lever arm, screw of handle passes limiting gasket and two Kong Houyu captive nuts connect.

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