CN2124796U

CN2124796U - Sharpening stone machine

Info

Publication number: CN2124796U
Application number: CN 92214753
Authority: CN
Inventors: 张代周
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-06-06
Filing date: 1992-06-06
Publication date: 1992-12-16

Abstract

The utility model relates to a stone grinding machine which is used for grinding cement floor. An inding wheel can obtain high and low two different rotating speeds by changing the rotation direction of a motor, so low speed grinding can be adopted when grinding the cement terrazzo floor in preliminary stage, and high speed and fine grinding can be adopted in later stage. Therefore, the surface quality and the grinding efficiency are improved.

Description

Sharpening stone machine

The utility model relates to a kind of stone mill of the cement bonded pulpstone ground of polishing.

The stone mill that uses in the building trade is commonly the single speed stone mill that has only a kind of rotating speed at present, and its transmission system is the transmission by two gears, and promptly motor gear drives the mainshaft gear rotation and makes main shaft obtain a kind of rotating speed.Because during the preliminary grinding cement flooring, the cement flooring exists serious rough and uneven in surface, make grinding resistance very big, the most handy low speed grinding this moment, and after being milled to a certain degree, big convex-concave surface disappears, and resistance reduces, should use High-speed fine grinding to improve its surface smoothness this moment, reaches above-mentioned requirements but the single speed stone mill can not produce two kinds of different rotating speeds.

The purpose of this utility model provides a kind of stone mill that can produce high and low two kinds of rotating speeds under the situation that keeps former motor equal-wattage output.

The utility model is achieved in that the high gear and the carrier gear that are installed on the main shaft by bearing mesh, and carrier gear meshes with motor gear again, an end fastening one outer ratchet of high gear; Inner ratch gear directly meshes and is fastened on the fixed disk with motor gear, and fixed disk is installed on the main shaft by bearing; Pawl disk uses key connecting on the main shaft and between high gear and fixed disk, pawl disk and ratchet are with hinge-coupled, ratchet inner ratch gear and outside between the ratchet, the three is positioned at same plane, when motor rotates with positive and negative both direction respectively, ratchet is in two positions respectively and respectively by outer ratchet and inner ratch gear is stuck and driven by it, makes it obtain high and low two kinds of different rotating speeds thereby make pawl disk drive main axis rotation.

The utility model has the advantages that: because high gear is different with the number of teeth of inner ratch gear, needn't change motor power (output), only need reversing rotation of motors, just can make this stone mill obtain high and low two kinds of different rotating speeds.

Fig. 1 is the front view of a kind of concrete structure of the utility model.

Fig. 2 is the cutaway view of its A-A section.

See figures.1.and.2, modulus m=3, the high gear of number of teeth z=45 (5) is installed on the main shaft (6) with bearing, with modulus m=3, the carrier gear of number of teeth z=30 (2) engagement, carrier gear again with modulus m=3, the motor gear of number of teeth z=18 (1) engagement, one end of high gear fastening outer ratchet (8), the two is integrated, modulus m=3, the inner ratch gear of number of teeth z=90 directly mesh with motor gear (1), and are fastened on the fixed disk (7) the two is integrated, fixed disk is installed on the main shaft by bearing, pawl disk (4) and ratchet (9) are with hinge-coupled, and ratchet (9) is positioned between inner ratch gear (3) and the outer ratchet (8), and the three is positioned at same plane.When motor during with the rotation of the speed clockwise direction of n=1440rpm, the rotation of outer ratchet (8) clockwise direction, ratchet (9) is pressed to outer ratchet (8) by the internal tooth of inner ratch gear (3), and be embedded in its tooth root portion and rotate with outer ratchet (8), by pawl disk (4), main shaft obtains high rotation speed n=576rpm when motor counterclockwise rotates with the speed of n=1440rpm, outer ratchet is rotated counterclockwise, inner ratch gear turns clockwise, ratchet is pressed to inner ratch gear by outer ratchet, and be embedded in its tooth root portion and rotate with handle ratchet wheel, by pawl disk, main shaft obtains slow-speed of revolution n=288rpm.

Claims

A kind of stone mill of the cement bonded pulpstone ground that is used to polish comprises that emery wheel, grinding carriage, terminal pad, gear, main shaft, body, motor and rubber tire form, and it is characterized in that:

1) end that is installed in the high gear (5) on the main shaft (6) by bearing is fixed an outer ratchet (8), high gear (5) and carrier gear (2) engagement, and carrier gear meshes with motor gear (1) again;

2) end that is installed in the fixed disk (7) on the main shaft by bearing is fixed an inner ratch gear (3), inner ratch gear (3) and motor gear (1) engagement;

3) pawl disk (4) uses key connecting on main shaft (6), and be positioned between high gear (5) and the fixed disk (7), pawl disk (4) and ratchet (9) hinge-coupled, ratchet (9) is positioned between inner ratch gear (3) and the outer ratchet (8), the three is positioned at same plane, to guarantee that main shaft can obtain the rotation of high and low two kinds of speed when motor gear rotates with positive and negative both direction.