CN201614897U

CN201614897U - Safe lifting clasp of common drill bit

Info

Publication number: CN201614897U
Application number: CN2010201586559U
Authority: CN
Inventors: 王建军; 张洪增
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-03-21
Filing date: 2010-03-21
Publication date: 2010-10-27
Anticipated expiration: 2020-03-21

Abstract

The utility model relates to a safe lifting clasp of a common drill bit, which is used in petroleum drilling and is an auxiliary device in petroleum drilling, especially when lifting the common drill bit, the lifting clasp is used for clamping the drill bit and lifting or winching the drill bit. The technical scheme of the safe lifting clasp is as follows: the safe lifting clasp of the common drill bit comprises a screwed ring, a support bar, a balance tie bar, a rotating shaft, a lifting ring and the like. The support bar is connected with the screwed ring and the balance tie bar by welding; the rotating shaft and the lifting ring are welded into a whole, and the lower end of the rotating shaft is turned with threads and a split pin hole; and the welded combination of the rotating shaft and the lifting ring is arranged in the hole in the middle of the balance tie bar, a gasket is placed, a hexagon nut is screwed and a split pin is inserted. For the safe lifting clasp of the common drill bit, the threads on the screwed ring needs to be consistent with metric threads of the drill bit. After being assembled, the safe lifting clasp can clamp the drill bit only by screwing the screwed ring on the drill bit, so as to lift or winch the drill bit.

Description

Drill bit security improvement snap ring commonly used

Technical field

The utility model relates to the drill bit security improvement snap ring commonly used that a kind of oil drilling is used.Be the oil drilling auxiliary equipment, when the handling drill bit, be used for blocking drill bit especially, drill bit is promoted or handling.

Background technology

In drilling operation course, often need adorn, the bit change operation, when drill bit to be used, no packing box is transported rig floor, need the human shoulder shoulder on the drill bit rig floor or with stand-by drill bit with the coir rope binding after, use compressed air hoist to hang on rig floor, and do not have special-purpose lifting snap ring.And shoulder on the drill bit rig floor or use the coir rope binding to hang rig floor on the drill bit with shoulder, very big potential safety hazard is all arranged.When manually shouldering on the drill bit rig floor, need to climb upward rig floor ladder, in the process that scales a ladder, because drill quality is heavier, often accidents such as generation personnel waist, sprain of leg are carried out lifting operation if use coir rope to bundle drill bit, owing to coir rope insufficient strength, wearing and tearing easily, therefore coir rope often occurs and break, take off, cause drill bit to land security incident or drill bit damage accident take place.

Summary of the invention

The purpose of this utility model is a kind of drill bit security improvement snap ring commonly used of design, make it have enough intensity and nonabradable characteristic, tighten by screw thread and drill bit, use compressed air hoist to hang rig floor on the drill bit, prevent from when the lifting drill bit, to take place security incident or drill bit damage accident.

Use the present technique solution to achieve the above object: drill bit security improvement snap ring commonly used comprises the fillet of screw, brace rod, balance lacing wire, rotating shaft and drop handle composition.The brace rod and the fillet of screw and balance lacing wire are weldingly connected; Rotating shaft and drop handle are welded into an integral body, at rotating shaft lower end thread cutting and cotter-pin hold, the rotating shaft after the welding, the assembly of drop handle are packed in the hole in the middle of the balance lacing wire, put packing ring, turn round hex nut and insert cottor pin, fillet of screw screw thread of the present utility model will conform to the drill bit male thread.After the utility model assembled, the fillet of screw is turned round on drill bit, can be connected as a single entity securely with drill bit.

The beneficial effects of the utility model are: because the utility model is a metal body, therefore have enough intensity and abrasion resistance; Because the utility model and drill bit be for being threaded, so during use, dismounting is more convenient, dependable performance, phenomenon such as can not break in the use, take off and make an accident.Guarantee site operation personnel's personal safety, had remarkable social benefit.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

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

Fig. 2 is the assembling schematic diagram of the utility model rotating shaft drop handle and packing ring, hex nut, cottor pin.

Among the last figure: drop handle (1), rotating shaft (2), balance lacing wire (3), packing ring (4), hex nut (5), cottor pin (6), brace rod (7), the fillet of screw (8).

The specific embodiment

1-2 in conjunction with the accompanying drawings, the utility model will be further described:

The utility model mainly is made up of drop handle 1, rotating shaft 2, balance lacing wire 3, packing ring 4, hex nut 5, cottor pin 6, brace rod 7 and the fillet of screw 8.The fillet of screw 8 is provided with the box thread that conforms to the drill bit male thread; Drop handle 1 is welded on rotating shaft 2 tops, and the lower cylindrical face of rotating shaft 2 is provided with male thread and cotter-pin hold; Drop handle 1 is assembled together by rotating shaft 2 lower thread and packing ring 4, hex nut 5, cottor pin 6 and balance lacing wire 3 with the solder bond body of rotating shaft 2; After with upper member [balance lacing wire 3] and the fillet of screw 8 by brace rod 7 integrally welded can uses; During use, the utility model links to each other with the drill bit male thread by the fillet of screw 8, and the suspension hook of compressed air hoist or crane is suspended on the drop handle 1, can promote or handling.

Claims

1. a drill bit security improvement snap ring commonly used is characterized in that: mainly be made up of drop handle (1), rotating shaft (2), balance lacing wire (3), packing ring (4), hex nut (5), cottor pin (6), brace rod (7) and the fillet of screw (8); The fillet of screw (8) is provided with the box thread that conforms to drill bit male thread commonly used; The centre position of balance lacing wire (3) is provided with the rotating shaft installing hole; Rotating shaft (2) can freely be rotated in the hole in the balance lacing wire (3).