阅读说明：本技术 一种钻头 (Drill bit ) 是由 刘春英 于 2018-08-23 设计创作，主要内容包括：本申请属于机械加工设备领域,尤其涉及一种钻头,包括钻体和位于钻体底部的伸缩尖体,所述伸缩尖体的两侧设置有伸缩连杆,所述伸缩连杆的底部设置有辅助尖头,所述伸缩连杆的上端设置有伞状的遮挡部,所述伸缩尖体通过丝杠与钻体相连,所述伸缩尖体内部设置有螺纹孔,所述伸缩尖体的底部设置有多个可分离和闭合的钻片。本申请相比普通钻头,能够提供进行钻的伸缩尖体和辅助尖头,两种尖头在进行打桩钻时,能够在转动时带动更加强大的下压力,迫使被钻的地方更容易被向下挖动,并且伸缩连杆上端的遮挡部能够把被下方向上溅的泥土或者碎石引导至两旁,避免了泥土和碎石向上不停堆积而掩埋住钻头设备。(The utility model belongs to the machining equipment field especially relates to a drill bit, including boring the body and being located the flexible point body of boring the body bottom, the both sides of flexible point body are provided with telescopic connecting rod, telescopic connecting rod's bottom is provided with supplementary tip, telescopic connecting rod's upper end is provided with umbelliform shielding part, flexible point body passes through the lead screw and links to each other with the boring body, the internal portion of flexible point is provided with the screw hole, the bottom of flexible point body is provided with a plurality of separable and closed brill pieces. Ordinary drill bit is compared in this application, can provide the flexible point body and the supplementary tip of boring of going on, and two kinds of tips can drive bigger holding down force of more strengthening when rotating when boring, force the place of being bored more easily by digging downwards to the occlusion part of flexible connecting rod upper end can be guided to both sides by the last mud or the rubble that spatters of below, has avoided earth and rubble to upwards incessantly pile up and bury drill bit equipment.)

1. A drill bit, characterized by: including boring body (1) and being located flexible sharp body (2) of boring body (1) bottom, the both sides of flexible sharp body (2) are provided with telescopic connecting rod (3), the bottom of telescopic connecting rod (3) is provided with supplementary tip (4), the upper end of telescopic connecting rod (3) is provided with umbelliform shielding part (5), flexible sharp body (2) link to each other with boring body (1) through lead screw (6), flexible sharp body (2) inside is provided with the screw hole, the bottom of flexible sharp body (2) is provided with a plurality of separable and closed brill piece (9).

2. A drill bit according to claim 1, wherein: the number of the telescopic connecting rods (3) is at least three.

3. A drill bit according to claim 2, wherein: the two ends of the telescopic rod are provided with clamping grooves, and the telescopic rod is fixed on the two sides of the drill body (1) through the clamping grooves.

4. A drill bit according to claim 3, wherein: the top of the drill bit (9) is set as a cutting edge.

Technical Field

The application belongs to the field of machining equipment, and particularly relates to a drill bit.

Background

During drilling, the drill bit is the primary tool for breaking rock and the borehole is formed by the drill bit breaking rock. The length of time a wellbore can take to form is related to the degree of mutual matching between the drill bit and the formation, in addition to the characteristics of the rock of the formation being drilled and the properties of the drill bit itself. The reasonable type selection of the drill bit plays an important role in improving the drilling speed and reducing the comprehensive drilling cost. The PDC drill bit is a face breaking tool widely used in the oil and gas exploration development industry at present, effectively improves a mechanical drilling tool, and shortens the drilling period. There are many types of drill bits currently used in the petroleum industry, and the drill bits are classified according to their types by different drilling methods, and can be classified into diamond bits, roller cone bits, and drag bits, which are the most basic drill bit types. Of the three types of bits, the most common and widespread one used in oil drilling operations is the roller cone bit, which is also used to a greater extent. Comparing these three bits, the one with the smallest range of use is the drag bit.

However, when the existing drill bit is used for drilling, only one structure for drilling is provided, other auxiliary structures are not provided, the drilling effect is limited, and soil and gravels during drilling bury the drill bit and influence the drilling effect.

Disclosure of Invention

In order to overcome the above problems in the prior art, a drill bit with better drilling effect is provided.

In order to achieve the technical effects, the technical scheme of the application is as follows:

a drill bit, characterized by: including boring the body and being located the flexible sharp body of boring the body bottom, the both sides of flexible sharp body are provided with telescopic connecting rod, telescopic connecting rod's bottom is provided with supplementary tip, telescopic connecting rod's upper end is provided with umbelliform occlusion part, flexible sharp body passes through the lead screw and links to each other with boring the body, flexible sharp internal portion is provided with the screw hole, the bottom of flexible sharp body is provided with a plurality of separable and closed brill pieces.

The number of the telescopic connecting rods is at least three.

The two ends of the telescopic rod are provided with clamping grooves, and the telescopic rod is fixed on the two sides of the drill body through the clamping grooves.

The top of the drill bit is set to be a cutting edge.

The application has the advantages that:

ordinary drill bit is compared in this application, can provide the flexible point body and the supplementary tip of boring of going on, and two kinds of tips can drive bigger holding down force of more strengthening when rotating when boring, force the place of being bored more easily by digging downwards to the occlusion part of flexible connecting rod upper end can be guided to both sides by the last mud or the rubble that spatters of below, has avoided earth and rubble to upwards incessantly pile up and bury drill bit equipment.

Drawings

Fig. 1 is a schematic structural diagram of the present application.

In the drawings:

1-drill body, 2-telescopic tip body, 3-telescopic connecting rod, 4-auxiliary tip, 5-shielding part, 6-lead screw and 9-drill piece.

Detailed Description