CN214836229U

CN214836229U - Mechanical jar

Info

Publication number: CN214836229U
Application number: CN202120659595.7U
Authority: CN
Inventors: 金贵全; 许超宇; 杜野; 吴丽娟; 孙华; 张帆; 张忠
Original assignee: HEILONGJIANG NORTH SHUANGJIA DRILLING TOOLS CO Ltd
Current assignee: HEILONGJIANG NORTH SHUANGJIA DRILLING TOOLS CO Ltd
Priority date: 2021-03-31
Filing date: 2021-03-31
Publication date: 2021-11-23
Anticipated expiration: 2031-03-31

Abstract

The utility model discloses a mechanical type jar, including jar main part and supplementary jar head, the jar main part has the sleeve pipe through first bolted connection, and the sleeve pipe setting is in the jar main part outside, and the sheathed tube lateral surface is provided with the arch simultaneously, supplementary jar head sets up the below in jar main part. This mechanical type jar, install the sleeve pipe in jar ware main part outside through first bolt, when using, the arch that the sleeve pipe lateral surface set up can with the contact of well drilling inner wall, strengthen the stability when whole jar ware main part moves, certain shock attenuation buffering effect can be played in the arch of rubber material simultaneously, can be fixed with the dabber connection in supplementary jar head through second bolt and nut and jar ware main part, when jar ware main part uses, the spring can play the buffering effect to the reaction force that the jarring produced, when supplementary jar head long-time use damages, can dismantle second bolt and nut and change it, need not maintain the jar ware main part and overhaul.

Description

Mechanical jar

Technical Field

The utility model relates to a mechanical type jar technical field specifically is a mechanical type jar.

Background

In the well drilling process, because the drilling tool combination is longer, the geological condition of underground is complicated, the drilling tool takes place the sticking of boring inevitably at the well drilling in-process, use the jar can reach the purpose that the jar struck and was separated, mechanical jar, utilize the mechanical friction principle, locking mechanism has adopted the slips of a set of arris belt formula, the vice release of slips is controlled by the deformation of elastic sleeve under the pressure effect, the jarring power is not influenced by well temperature, because jar uses for a long time, cause inside dabber to damage easily, it is comparatively troublesome to overhaul the maintenance.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a mechanical type jar to the jar that provides in solving above-mentioned background art uses for a long time, causes inside dabber to damage easily, overhauls and maintains comparatively trouble problem.

In order to achieve the above object, the utility model provides a following technical scheme: a mechanical jar comprises a jar body and an auxiliary jar head,

the bumper jar comprises a jar body, a first bolt, a second bolt and a sleeve, wherein the jar body is connected with the sleeve through the first bolt, the sleeve is arranged on the outer side of the jar body, and meanwhile, a bulge is arranged on the outer side surface of the sleeve;

and the auxiliary shock head is arranged below the jar main body.

Preferably, the first bolts are arranged in two groups, the first bolts below penetrate through the sleeve and are in threaded connection with the jar body, and the first bolts above penetrate through the jar body and are in threaded connection with the sleeve.

Preferably, the bulges are uniformly distributed on the outer side surface of the sleeve and are made of rubber materials.

Preferably, the auxiliary jar head is connected to the jar body by a second bolt and nut.

Preferably, the auxiliary shock head comprises a connecting frame, a spring and an impact head, the spring is arranged in the connecting frame, one end, far away from the connecting frame, of the spring is connected with the impact head, the inner wall of the impact head is connected with the outer side face of the connecting frame in a sliding mode through a sliding groove, and a second bolt penetrates through the connecting frame.

Compared with the prior art, the beneficial effects of the utility model are that: in the mechanical type jar-like device, the mechanical type jar-like device is provided with a first chamber and a second chamber,

(1) the sleeve is arranged on the outer side of the jar body through the first bolt, when the jar is used, the bulge arranged on the outer side surface of the sleeve can be in contact with the inner wall of a drilling well, the stability of the whole jar body in operation is enhanced, and meanwhile, the bulge made of rubber can play a certain role in shock absorption and buffering;

(2) can be connected fixedly with the dabber in supplementary jarring head through second bolt and nut and the jar main part, when jar ware main part used, act on supplementary jarring head through the dabber and carry out the jarring, the spring can play the cushioning effect to the reaction force that the jarring produced, when supplementary jarring head uses the damage for a long time, can dismantle second bolt and nut and change it, need not maintain the maintenance to jar ware main part.

Drawings

Fig. 1 is a schematic view of the front cross-sectional structure of the present invention;

FIG. 2 is an enlarged schematic view of the structure at A of FIG. 1 according to the present invention;

fig. 3 is a schematic view of the auxiliary jar structure of the present invention.

In the figure: 1. the device comprises a jar body, 2, a first bolt, 3, a sleeve, 4, a protrusion, 5, a second bolt, 6, a nut, 7, an auxiliary shocking head, 701, a connecting frame, 702, a spring, 703 and an impact head.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a mechanical type jar, as shown in fig. 1 and fig. 2, jar ware main part 1 is connected with sleeve pipe 3 through first bolt 2, and sleeve pipe 3 sets up in jar ware main part 1 outside, the lateral surface of sleeve pipe 3 is provided with protruding 4 simultaneously, first bolt 2 is provided with two sets ofly, and first bolt 2 of below runs through sleeve pipe 3 threaded connection on jar ware main part 1, first bolt 2 of top runs through jar ware main part 1 threaded connection on sleeve pipe 3 simultaneously, it is convenient through first bolt 2, the use is dismantled in the installation of sleeve pipe 3, protruding 4 evenly distributed is on the lateral surface of sleeve pipe 3, and protruding 4 is made for rubber materials, protruding 4 and well drilling contact wall of a well, stability when reinforcing jar ware main part 1 uses, play certain buffering cushioning effect simultaneously.

As shown in fig. 1 and 3, the auxiliary shock head 7 is disposed below the jar body 1, the auxiliary shock head 7 is connected with the jar body 1 through the second bolt 5 and the nut 6, the auxiliary shock head 7 is mounted and fixed through the second bolt 5 and the nut 6, and is convenient to disassemble, maintain or replace, damage of the internal mandrel of the jar body 1 caused by long-time use can be reduced through the auxiliary shock head 7, the auxiliary shock head 7 comprises a connecting frame 701, a spring 702 and a shock head 703, a spring 702 is disposed in the connecting frame 701, one end of the spring 702, which is far away from the connecting frame 701, is connected with the shock head 703, an inner wall of the shock head 703 is slidably connected with an outer side surface of the connecting frame 701 through a sliding groove, the second bolt 5 is disposed on the connecting frame 701 in a penetrating manner, and the spring 702 can play a role in buffering against a reaction force generated by shock of the auxiliary shock head 7.

The working principle is as follows: when the mechanical jar is used, the sleeve 3 is sleeved on the outer side of the jar main body 1, the sleeve 3 is fixedly installed through the first bolt 2 by screw threads, the mandrel in the jar main body 1 is connected with the auxiliary jar head 7 through the second bolt 5 and the nut 6, when the jar main body 1 is used, the spring 702 can play a role in buffering the reaction force generated by the shock through the shock of the auxiliary shock head 7 acted by the inner mandrel, the bulge 4 is contacted with the well wall of the well, the operation of the jar body 1 is stabilized and buffered, after the use of the jar body 1 is finished, the sleeve 3 is taken down by the detachable first bolt 2, and after the auxiliary shock head 7 is damaged after long-term use, the detachable second bolt 5 and the nut 6 are arranged to detach, repair or replace the auxiliary shock head 7, and the content which is not described in detail in the specification belongs to the prior art which is well known by a person skilled in the art.

The terms "central," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for ease of description, but are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the scope of the invention.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. A mechanical jar comprising a jar body (1) and an auxiliary jar head (7), characterized in that:

the bumper jar comprises a jar body (1), wherein the jar body (1) is connected with a sleeve (3) through a first bolt (2), the sleeve (3) is arranged on the outer side of the jar body (1), and a bulge (4) is arranged on the outer side surface of the sleeve (3);

and the auxiliary shock head (7) is arranged below the jar body (1).

2. A mechanical jar as defined in claim 1 wherein: the first bolts (2) are arranged in two groups, the first bolts (2) on the lower portion penetrate through the sleeve (3) and are in threaded connection with the jar body (1), and meanwhile the first bolts (2) on the upper portion penetrate through the jar body (1) and are in threaded connection with the sleeve (3).

3. A mechanical jar as defined in claim 1 wherein: the bulges (4) are uniformly distributed on the outer side surface of the sleeve (3), and the bulges (4) are made of rubber materials.

4. A mechanical jar as defined in claim 1 wherein: the auxiliary shocking head (7) is connected with the jar body (1) through a second bolt (5) and a nut (6).

5. A mechanical jar as defined in claim 1 wherein: the auxiliary shock head (7) comprises a connecting frame (701), a spring (702) and an impact head (703), the spring (702) is arranged in the connecting frame (701), one end, far away from the connecting frame (701), of the spring (702) is connected with the impact head (703), the inner wall of the impact head (703) is connected with the outer side face of the connecting frame (701) in a sliding mode through a sliding groove, and meanwhile a second bolt (5) penetrates through the connecting frame (701).