CN109209252B

CN109209252B - Wear-resistant reinforced hollow connecting rod

Info

Publication number: CN109209252B
Application number: CN201811092690.2A
Authority: CN
Inventors: 李士栋; 江继亭; 季瑞; 赵伟伟; 杨硕
Original assignee: Zoucheng Yankuang Taide Industry and Trade Co Ltd
Current assignee: Shandong Yanneng Taide Heavy Industry Co.,Ltd.
Priority date: 2018-09-19
Filing date: 2018-09-19
Publication date: 2020-08-21
Anticipated expiration: 2038-09-19
Also published as: CN109209252A

Abstract

The invention discloses a wear-resistant reinforced hollow connecting rod which comprises a first end, a second end and a third end, wherein a hollow first cone is arranged on the first end, and external threads are arranged on the hollow first cone; the second end is of a hollow cylindrical structure, an inner surface and an outer surface are arranged on the second end, a plurality of springs are arranged between the inner surface and the outer surface and used for buffering impact force, the springs are connected with the inner surface through bolts, the springs are connected with the outer surface through magnets, a plurality of slide ways parallel to the springs are arranged on the inner surface, and a plurality of bulges sliding along the slide ways are arranged on the outer surface; the third end is hollow second cone, be equipped with in the hollow second cone with external screw thread assorted internal thread has solved and has connect the pole wearing and tearing and the short problem of life, has realized the wearability who connects the pole.

Description

Wear-resistant reinforced hollow connecting rod

Technical Field

The invention relates to the technical field of drilling tools, in particular to a wear-resistant reinforced hollow connecting rod.

Background

The extension rod is an essential tool in the coal mining process, the extension rod is a tool positioned between a drilling machine and a drill bit, the drilling depth is different, the length of the required extension rod and the power of the drilling machine are different along with the increase of the drilling depth, generally, the depth is deeper, the power of the required drilling machine is larger, the length of the straw is longer, most of the existing extension rods are thin-walled and seamless, the extension rod is often deformed or even broken in the using process, the broken extension rod can fall into the well, therefore, the extension rod needs to be salvaged, meanwhile, the abrasion of the layer outside can be caused in the using process, the service life of the extension rod is prolonged, the construction progress is seriously affected, the production cost is increased, and the waste of resources can be caused due to the damage of the extension rod.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides the wear-resistant reinforced hollow connecting rod, solves the problems of wear and short service life of the connecting rod, and realizes the wear resistance of the connecting rod.

(II) technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme: the wear-resistant reinforced hollow connecting rod comprises a first end, a second end and a third end,

the first end is provided with a hollow first cone, and the outer surface of the hollow first cone is provided with an external thread;

the second end is of a hollow cylindrical structure, an inner surface and an outer surface are arranged on the second end, a plurality of springs are arranged between the inner surface and the outer surface and used for buffering impact force, the springs are connected with the inner surface through bolts, the springs are connected with the outer surface through magnets, a plurality of slide ways parallel to the springs are arranged on the inner surface, and a plurality of bulges sliding along the slide ways are arranged on the outer surface;

the third end is a hollow second cone, and an internal thread matched with the external thread is arranged in the hollow second cone.

Preferably, after the first end is connected with the third end, a water through hole is formed between the hollow extension rods.

Preferably, the first end is further provided with a hollow circular truncated cone, and a gasket is arranged between the hollow circular truncated cone and the second end and used for damping.

Preferably, the spring is located between the two runners for receiving localized impact forces.

Preferably, an iron sheet is arranged at one end of the spring, which is attracted to the magnet, so that the spring and the outer surface are stable.

Preferably, the length of the projection is less than the length of the slideway.

Preferably, silica gel is arranged on the contact surface of the outer surface and the slide way, so as to protect the slide way.

Preferably, the second cone is made of hard alloy.

(III) advantageous effects

The invention has the following beneficial effects:

1. the invention increases the matching of the spring and the slideway and the bulge, after the external impact force is applied, the spring in the connecting rod generates elastic deformation, the bulge on the outer surface moves along the slideway to buffer the impact force, thereby increasing the wear resistance of the connecting rod;

2. the invention increases the matching between the first end and the third end thread, so that the connecting rod forms a water through hole, and the internal pressure of the drilling machine is relieved when the drilling machine is used.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the spring mounting structure of the present invention;

FIG. 3 is a schematic view of the self-bonding structure of the present invention;

in the figure: 1, a first end, 11 a first cone, 111 external threads and 12 round platforms; 2 second end, 21 inner surface, 211 slideway, 22 outer surface, 221 convex, 23 spring; 3 third end, 31 second cone, 311 internal thread; 4 water through holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Embodiments of the invention: referring to fig. 1-2, the wear-resistant reinforced hollow connecting rod comprises a first end, a second end and a third end, wherein the first end is provided with a hollow circular truncated cone and a hollow first cone, the hollow circular truncated cone is designed to place a light filling material in the circular truncated cone and buffer the impact between the first end and the second end, a gasket is arranged between the hollow circular truncated cone and the second end so as to relieve the impact between the first end and the second end caused by stress, the hollow first cone is provided with an external thread, and the first cone and the circular truncated cone are integrally formed; the second end is provided with an inner surface, an outer surface and a plurality of springs, the springs are mainly designed to buffer the impact force formed by the connecting rod swinging back and forth and the ground in the drilling process, the springs effectively relieve the impact force, the inner surface is provided with a plurality of bulges, the outer surface is provided with slideways matched with the bulges, the bulges can slide along the slideways, the lengths of the bulges are smaller than those of the slideways, generally, under the condition of nonuse, one section of the bulge is in the slideway so as to avoid the bulge deviating from the track of the slideway in the use process, the springs are positioned between the two slideways, after the local impact force is applied, one part of the springs can play a role, the rest of the springs cannot generate elastic deformation, the springs are connected with the inner surface through bolts, a relatively fixed structure is arranged between the inner surface and the springs, magnets are arranged on the outer surface, and iron sheets are arranged between, the increase of the iron sheet, has strengthened the suction between magnet and spring, can link the spring together more steadily, there are silica gels on the contact surface of external surface and slideway at the same time, in order to protect the slideway, the design among spring, internal surface and external surface, on one hand, in order to buffer the impact force and cause the damage to the connecting rod, on the other hand, can reduce the abrasion of the connecting rod, the design of the magnet on the external surface is in order to change the spring or internal surface under the already serious condition of the spring damage or external surface abrasion in the course of striking, the internal surface is still the most predominant forced support in the whole design, design some structures outside it, has slowed down the abrasion of the connecting rod; be equipped with hollow second cone on the third end, the second cone is the carbide material, wear-resisting effect has, the size of hollow structure is exactly the size of first cone on the third end, be equipped with the internal thread on the second cone, the internal thread can mutually support with the external screw thread on the first cone, make first end be connected with the third end through revolving soon, first end links to each other with the third end after, so that form the limbers between the pole is connect to the cavity, just so constitute columniform limbers, the effect of limbers is exactly in order to alleviate the damage that causes the rig that the groundwater gushes out at the in-process of construction, scribble one deck antirust coat on the inner wall of limbers, the purpose is for rustting in the in-process of using.

The use method of the invention comprises the following steps: referring to fig. 3, firstly, the inner surface structure of the first end, the third end and the second end is prefabricated in a factory, a slide way is arranged on the inner surface, the prefabricated part is transported to a construction site, then a plurality of springs are assembled on the inner surface through bolts, after the springs are assembled, the outer surface is assembled, the prefabricated part is mainly assembled through butt joint between a protrusion and the slide way, after the butt joint is completed, a wear-resistant reinforced hollow connecting rod is formed, then the first end is connected with a drilling machine, the first end is connected with a drill bit, the number of the connecting rods can be increased along with the construction depth, after the number of the connecting rods cannot meet the construction requirement, the two connecting rods can be connected and then connected with the drill bit of the drilling machine, in the using process, the impact force can cause the inner surface to be inwards concave, at the moment, the springs can generate elastic deformation, and after the.

Claims

1. Wear-resisting strenghthened type cavity connects pole, its characterized in that: comprises a first end (1), a second end (2) and a third end (3),

a hollow first cone (11) is arranged on the first end (1), and an external thread (111) is arranged on the hollow first cone (11);

the second end (2) is of a hollow cylindrical structure, an inner surface (21) and an outer surface (22) are arranged on the second end (2), a plurality of springs (23) are arranged between the inner surface (21) and the outer surface (22) and used for buffering impact force, the springs (23) are connected with the inner surface (21) through bolts, the springs (23) are connected with the outer surface (22) through magnets, a plurality of slide ways (211) parallel to the springs (23) are arranged on the inner surface (21), and a plurality of protrusions (221) sliding along the slide ways are arranged on the outer surface (22);

the third end (3) is a hollow second cone (31), and an internal thread (311) matched with the external thread (111) is arranged in the hollow second cone (31).

2. The wear-resistant reinforced hollow extension rod of claim 1, wherein: and after the first end (1) is connected with the third end (3), a water through hole (4) is formed between the hollow connecting rods.

3. The wear-resistant reinforced hollow extension rod of claim 1, wherein: the shock-absorbing structure is characterized in that a hollow round table (12) is further arranged on the first end (1), and a gasket is arranged between the hollow round table (12) and the second end (2) and used for absorbing shock.

4. The wear-resistant reinforced hollow extension rod of claim 1, wherein: the spring (23) is positioned between the two slide ways (211) and is used for bearing local impact force.

5. The wear-resistant reinforced hollow extension rod of claim 1, wherein: and an iron sheet is arranged at one end of the spring (23) which is attracted with the magnet, so that the spring and the outer surface are stable.

6. The wear-resistant reinforced hollow extension rod of claim 1, wherein: the length of the protrusion (221) is smaller than the length of the slideway.

7. The wear-resistant reinforced hollow extension rod of claim 1, wherein: and silica gel is arranged on the contact surface of the outer surface (22) and the slide way (211) to protect the slide way.

8. The wear-resistant reinforced hollow extension rod of claim 1, wherein: the second cone (31) is made of hard alloy.