CN2097684U

CN2097684U - Improved cutting tool structure of grinder

Info

Publication number: CN2097684U
Application number: CN 91200091
Authority: CN
Inventors: 刘起材
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-01-08
Filing date: 1991-01-08
Publication date: 1992-03-04

Abstract

The utility model relates to an improved cutting tool structure of a grinder. A cutting tool is enabled to have tool faces which are extended with a corresponding angle, and connection step surfaces are formed between tool faces and tool face bodies. Communicated screw holes are preset on the tool faces for inner surfaces extended by the flat inclined surfaces of the tool faces, and easily run-through cutter bodies with corresponding connection holes are screwed with the screw holes by bolts, penetrating through the connection holes. The cutter points of the cutter bodies are enabled to exceed the tool faces of the cutting tool and are used as the loss components when the grinder is cutting so as to reduce the inconvenience of the disassembly of the whole cutting tool and the displacement of the new tool faces when the tool faces of the cutting tool solely formed by the tool faces are worn and can not be used, and the shortcoming of the high cost of the disassembly of the whole cutting tool is solved.

Description

Improved cutting tool structure of grinder

The utility model belongs to cutter structure, the particularly improvement of crushing machine cutting tool structure design.

Crushing machine cutting tool commonly used is one-body molded, the knife face that has column type tool rest and three roads to extend with suitable cambered surface.Cutter connects with the motor driving wheel one with splined shaft, and can implement rapidly and the dismounting or the combination of splined shaft by means of integrated knife face.This cutter is an integral body, and knife face must change by the bed rearrangement cutter after in use wearing and tearing gradually, has obviously formed two shortcomings:

1. the cost that changes the outfit of cutter bed rearrangement is expensive, just throws aside also very uneconomical after the knife face wearing and tearing.

2. changeing the bed rearrangement cutter comparatively bothers.

The purpose of this utility model is improved the structure of aforementioned pulverizer cutter commonly used, to eliminate existing shortcoming.

Cutter structure improvement project of the present utility model is: each knife face of cutter is the contour body that enlarges to inclined before and after column type tool rest outer shroud was on week, and offers the screw that connects knife face in its inner face; Form between the knife back of the inner face of each knife face and a time knife face and connect terrace; Connect on the terrace and can install the cutter hub that the upper end has the knife edge, there is the connection holes of perforation at each screw place of corresponding knife face on the cutter hub, the screw that available bolt passes on connection holes and the knife face is spirally connected, and cutter hub and knife face are fixedly combined as a whole, and the knife edge of cutter hub upper end exceeds knife face.

Characteristics of the present utility model are that solid tool is improved to the modular cutting tool assembly that each knife face all has dismantled and assembled cutter hub.Its advantage is can renew separately after any cutter hub wearing and tearing, and will not renew by the bed rearrangement cutter.And cutter hub adopts the solid mode of spiral shell to combine with knife face, and dismounting is easy.Cutter of the present utility model can be established cutter hub with the knife face spiral shell and make to pulverize cutting tool, also can only make to pulverize cutting usefulness with knife face when no cutter hub, thereby have alternative.

Embodiment of the present utility model as shown in drawings.

Fig. 1 adopts the utility model to improve the pulverizer entire combination structural representation of cutter.

Fig. 2 is that the utility model improves the cutter member schematic diagram.

Fig. 3 is cutter hub and knife face structure organigram.

Label among the figure is represented respectively:

1. pulverizing body, 2. cutter, 3. cutter hub;

10. motor, 11. belt pulleys, 12. belts, 13. belt pulleys, 14. splined shafts, 15. spline tooths, 16. inlet cover; 20. the hub tooth, 21. knife faces, 22. knife back connect terrace, 23. screws; 30. the knife edge, 31. connection holes, 32. bolts.

In conjunction with the accompanying drawings the utility model is described in detail:

This case system is improved at known structure, so overall structure comprises:

Pulverize body (1), motor internal (10), the axle center of motor (10) drives another belt pulley (13) with belt pulley (11) through belt (12), the central authorities of this belt pulley (13) can penetrate the connection interlock for a splined shaft (14), and the outer shroud of splined shaft (14) is equipped with spline tooth (15) on week, is provided with a movable inlet cover that starts (16) in body (1) in addition;

Cutter (2), the spline tooth (15) of corresponding above-mentioned splined shaft (14) is provided with hub tooth (20) and leads with engagement in inside, and in outer shroud week fraction such as correspondence extend knife face (21), each knife face (21) is all the contour body of inclined stretching, extension from front to back, and form between the knife back of each knife face (21) and another knife face (21) and connects terrace (22), other is through with three screws (23) of spacing in the inner face of knife face (21);

Cutter hub (3), be suitable long plates, form the knife edge (30) in the upper end, it is in the connection holes (31) of the corresponding above-mentioned screw of internal run-through (23), borrow bolt (32) to pass connection holes (31) and screw togather screw (23), can make cutter hub (3) in conjunction with cutter (2) and make the knife edge (30) be higher than knife face (21).

During assembling, cutter hub (3) is put each the connection terrace (22) that closes in cutter (2) earlier by system makes connection holes (31) aim at each screw (23), borrowing bolt (32) to pass connection holes (31) screws togather screw (23) and makes the fixed cutter of cutter hub (3) (2), again inlet cover (16) is started, cutter (2) is packed in the body (1), with the inner hub tooth (20) of spline tooth (15) the engagement cutter (2) of splined shaft (14), make splined shaft (14) connect transmission again with belt pulley (13).

Overall structure with this case and product commonly used is made comparisons, and aobvious knows this case except having rapid combination, running is laborsaving and noise is little advantage, has more alternative, tears open and assemble facility and the lower practical effect of production cost.

Claims

A kind of architecture advances about crushing machine cutting tool, cutter are the cylindrical tool rests of and splined coaxial with motor driving wheel by and constitute in tool rest outer shroud Zhou Shangyu tool rest one and the extended some knife faces of symmetry; Each knife face that is characterised in that of the present utility model is the contour body that enlarges to inclined before and after column type tool rest outer shroud was on week, and offer the screw that connects knife face in its inner face, form between the knife back of the inner face of each knife face and a time knife face and connect terrace, connect on the terrace and can install the cutter hub that the upper end has the knife edge, there is the connection holes of perforation at each screw place of corresponding knife face on the cutter hub, the screw that has bolt to pass on connection holes and the knife face is spirally connected, cutter hub and knife face are fixedly combined as a whole, and the knife edge of cutter hub upper end exceeds knife face.