CN201396360Y

CN201396360Y - Tooth mouth screw

Info

Publication number: CN201396360Y
Application number: CN200920045952XU
Authority: CN
Inventors: 李光千; 徐乃兵
Original assignee: Zhenjiang Sanwei Conveying Equipment Co Ltd
Current assignee: Zhenjiang Sanwei Conveying Equipment Co Ltd
Priority date: 2009-05-12
Filing date: 2009-05-12
Publication date: 2010-02-03
Anticipated expiration: 2019-05-12

Abstract

The utility model relates to a tooth mouth screw, which comprises a cake type screw head (1), a screw cylinder (2) and a screw overturn angle (3). The cake type screw head (1) is punched with a pointed salient with a certain height, which is namely the screw head overturn angle (3) to the direction of the screw cylinder (2); the diameter of the screw head (1) is larger than the diameter of the screw cylinder (2) by three times; the length of the screw head overturn angle (3) is larger than the thickness of the screw head (1). The quantity of the screw head overturn angle (3) shall be more thantwo. The screw cylinder (2) is provided with threads. Pointed tooth can rapidly and effectively prick into the surface of a lifting belt and do not damage the core layer of the lifting belt, thus effectively preventing the following rotating phenomenon when the nuts are screwed; meanwhile, the fastening force with the lifting belt can be improved through enlarging the diameter of the nut head part, thus being capable of bearing larger impact load during the operation process of equipment. The tooth mouth screw is applicable to the mounting of high capacity bucket in particular.

Description

Age of a draught animal screw

Technical field

The utility model relates to a kind of screw, relate in particular to a kind of age of a draught animal screw, the screw of being taked when connecting lift winnowing pan and elevator belt in the lift of dirivig member with traction belt is carried in the continuous lifting that is applicable to the powdery of loose thickness, granular, little lump material.

Background technique

Age of a draught animal screw is one of main accessory when in the noria winnowing pan being installed, the continuous lifting that is applicable to the powdery of loose density≤1.8t/m3, granular, little lump material is carried, and all can select for use when connecting lift winnowing pan and elevator belt with traction belt as the lift of dirivig member.Age of a draught animal screw can be widely used in the band elevator of loose unpacked material of feed factory, flour mill, Mi Chang, You Chang, pharmaceutical factory and grain depot, the port and pier of various scales.The common bucket bolt that adopts in the existing noria is because structural type can not be fit to the actual motion environment and the requirement of bucket elevator fully, necessarily do not prevent screw transfer ability, screw head and elevator belt area of contact are little, fastening force is poor, it is not tight to cause nut to install easily, cause winnowing pan and promote with holes be elongated to draw wear phenomenon, directly influence the working life of winnowing pan, elevator belt and the reliability and the Security of equipment operation.

The model utility content

The screw that has adopted when providing a kind of Bucket of Bucket Type Elevator rational in infrastructure, that using effect is good to install at above not enough the utility model.

The utility model comprises that cake type screw head 1, screw cylindrical body 2, screw turn over angle 3; It is that screw head turns over angle 3 that cake type screw head 1 is gone out the pointed projection with certain altitude to screw cylindrical body 2 directions, the diameter of screw head 1 is greater than 3 times of screw cylindrical body 2 diameters, screw head turns over the thickness of the length at angle 3 greater than screw head 1, and described screw head turns over angle 3 to be had more than two.Described screw cylindrical body 2 is provided with screw thread.

The utility model has mainly changed common bucket bolt by this structure Design and has contacted fixing form with elevator belt, outstanding pointed tooth can penetrate the surface of elevator belt quickly and effectively, and do not hinder the sandwich layer of bad elevator belt, screw transfer phenomenon when preventing effectively that nut from screwing, simultaneously by improving the nut head diameter, increase fastening force with elevator belt, in equipment running process, can bear bigger impact load, be specially adapted to the installation of big capacity winnowing pan, can be used on the multiple lift widely, its performance is better than common bucket bolt, is the fastening product of a kind of more reliable winnowing pan.This structure is significantly improved the working life of winnowing pan, elevator belt and the reliability and the Security of equipment operation.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is a left view of the present utility model.

Embodiment

As shown in Figure 1 and Figure 2, wherein 1 is screw head, and 2 is the screw cylindrical body, and 3 turn over the angle for screw head.

Age of a draught animal screw comprises that cake type screw head 1, screw cylindrical body 2, screw turn over angle 3; It is that screw head turns over angle 3 that cake type screw head 1 is gone out two or more pointed projectioies with certain altitude to screw cylindrical body 2 directions, the diameter of screw head 1 is greater than 3 times of screw cylindrical body 2 diameters (D＞3d), screw head turns over the thickness of the length at angle 3 greater than screw head 1, and screw cylindrical body 2 is provided with screw thread.

Though the utility model with preferred embodiment openly as above; but they are not to be used for limiting the utility model; anyly have the knack of this skill person; in the spirit and scope that do not break away from the utility model; can do various variations or retouching from working as, what therefore protection domain of the present utility model should be defined with the application's claim protection domain is as the criterion.

Claims

1, a kind of age of a draught animal screw is characterized in that: comprise that cake type screw head (1), screw cylindrical body (2), screw turn over angle (3); It is that screw head turns over angle (3) that cake type screw head (1) is gone out the pointed projection with certain altitude to screw cylindrical body (2) direction, the diameter of screw head (1) is greater than 3 times of screw cylindrical body (2) diameter, and screw head turns over the thickness of the length at angle (3) greater than screw head (1).

2, age of a draught animal screw according to claim 1 is characterized in that: described screw head turns over angle (3) to be had more than two.

3, age of a draught animal screw according to claim 1 is characterized in that: described screw cylindrical body (2) is provided with screw thread.