CN212927737U

CN212927737U - Rotary drilling rod with double-retainer ring structure

Info

Publication number: CN212927737U
Application number: CN202021544071.5U
Authority: CN
Inventors: 李银阳; 姚为之; 李银芳; 马路路; 王敏
Original assignee: XUZHOU HENGXING JINQIAO MACHINERY TECHNOLOGY CO LTD
Current assignee: XUZHOU HENGXING JINQIAO MACHINERY TECHNOLOGY CO LTD
Priority date: 2020-07-30
Filing date: 2020-07-30
Publication date: 2021-04-09
Anticipated expiration: 2030-07-30

Abstract

The utility model discloses a rotary drilling rod with double-baffle ring structure, which comprises a first section rod, a last section rod and N sections of intermediate rods arranged between the first section rod and the last section rod, wherein a driving plate is arranged in one end of the first section rod, the other end of the first section rod is provided with a flange assembly, the driving plate is arranged inside one end of the N sections of intermediate rods, the other end of the N sections of intermediate rods is provided with a cap assembly, and the outer surfaces of the first section rod, the last section rod and the N sections of intermediate rods are provided with outer key strips and locking blocks; the cap assembly comprises a movable ring movably sleeved on the intermediate rod, a first blocking ring and a second blocking ring, wherein the first blocking ring and the second blocking ring are fixedly connected with the intermediate rod, one side of the movable ring is attached to the outer key strip, the other side of the movable ring is attached to one side face of the first blocking ring, so that the movable ring can only rotate relative to the intermediate rod, and a small distance is reserved between the first blocking ring and the second blocking ring. The utility model discloses a two fender ring structures can prevent that the activity ring from droing from the intermediate lever when the sub-assembly of protective cap is not destroyed, and is reliable and stable, has the guide effect simultaneously, guarantees to dig the drilling rod smoothly work soon.

Description

Rotary drilling rod with double-retainer ring structure

Technical Field

The utility model relates to a dig drilling rod technical field soon, specifically indicate a dig drilling rod soon with two fender ring structures.

Background

The rotary drilling rig is a construction machine suitable for hole forming operation in building foundation engineering. The rotary drilling rod is an important component of the rotary drilling rig, the rotary drilling rig generally comprises a plurality of sections of sleeves which are embedded together for use, the drill rod with the largest radius is a first section of drill rod, the drill rod with the second largest radius is a second section of drill rod, and the like. In the working process of the drill rod, the cap assembly of the middle multi-section drill rod continuously bears friction force and impact force under the action of large impact force caused by expansion and contraction, and is easy to wear, and in order to reduce the rejection rate of the drill rod, a movable ring is generally arranged on the cap assembly, but the movable ring is easy to break and separate under the action of frequent impact force, so that the cap assembly is easy to damage.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome the defect of above-mentioned technique, a dig drilling rod soon with two fender ring structures is provided.

In order to solve the technical problem, the utility model provides a technical scheme is a dig drilling rod soon with two fender ring structures: the water discharging device comprises a first section rod, a last section rod and N sections of intermediate rods arranged between the first section rod and the last section rod, wherein N is more than or equal to 1, a driving plate is arranged in one end of the first section rod, a flange assembly is arranged at the other end of the first section rod, a driving plate is arranged inside one end of the N sections of intermediate rods, a cap assembly is arranged at the other end of the N sections of intermediate rods, each last section rod comprises a core section, a water discharging disc arranged at one end of the core section, a bearing disc, a square head and a lifting lug arranged at the other end of the core section, a guide sleeve is arranged between the bearing disc and the water discharging disc, a buffer spring is sleeved outside the guide sleeve, and outer key strips and locking blocks are arranged on the outer surfaces of the first; the cap assembly comprises a movable ring movably sleeved on the intermediate rod, a first blocking ring and a second blocking ring, wherein the first blocking ring and the second blocking ring are fixedly connected with the intermediate rod, one side of the movable ring is attached to the outer key strip, the other side of the movable ring is attached to one side face of the first blocking ring, so that the movable ring can only rotate relative to the intermediate rod, the second blocking ring is close to the end part of the intermediate rod, and a small distance is reserved between the first blocking ring and the second blocking ring.

As an improvement, through holes are formed in the middle of the side faces of the first retaining ring and the second retaining ring along the circumferential array.

Compared with the prior art, the utility model the advantage lie in: the utility model discloses a two fender ring structures can prevent that the activity ring from droing from the intermediate lever when the sub-assembly of protective cap is not destroyed, and is reliable and stable, has the guide effect simultaneously, guarantees to dig the drilling rod smoothly work soon.

Drawings

Fig. 1 is a schematic structural view of a rotary drilling rod with a double-retaining ring structure.

Fig. 2 is the utility model relates to a dig first section pole of drilling rod soon with two fender ring structures's structure sketch map.

Fig. 3 is a schematic structural view of the last section rod of the rotary drilling rod with the double-retaining ring structure.

Fig. 4 is a schematic structural view of the first section of the intermediate rod of the rotary drilling rod with the double-retaining ring structure.

Fig. 5 is a schematic structural view of the second section intermediate rod of the rotary drilling rod with the double-retaining ring structure.

Fig. 6 is an enlarged view of fig. 4 at a.

Fig. 7 is a schematic structural view of the first baffle ring of the rotary drilling rod with the double-baffle-ring structure of the present invention.

Fig. 8 is a schematic structural view of a second retainer ring of the rotary drilling rod with a double-retainer ring structure.

As shown in the figure: 1. the hydraulic lifting device comprises a first section rod, a second section rod, a third section rod, a middle rod, a driving plate, a flange assembly, a core section, a water discharging disc, a bearing and collision disc, a square head, a lifting lug, a guide sleeve, a buffer spring, a movable ring, a first baffle ring, a second baffle ring, a through hole, a square head disc, a first baffle ring, a second baffle ring, a third baffle ring, a fourth baffle ring, a fifth baffle ring, a.

Detailed Description

The following description will be made in detail with reference to the accompanying drawings for a rotary drilling rod with a double-retaining ring structure.

With reference to fig. 1-8, a rotary drilling rod with a double-stop ring structure comprises a first-section rod 1, a last-section rod 2 and N-section intermediate rods 3 arranged between the first-section rod 1 and the last-section rod 2, wherein N is greater than or equal to 1, a drive plate 4 is arranged in one end of the first-section rod 1, a flange assembly 5 is arranged at the other end of the first-section rod 1, the drive plate 4 is arranged in one end of the N-section intermediate rods 3, a cap assembly is arranged at the other end of the N-section intermediate rods, the last-section rod 2 comprises a core section 6, a water drain disc 7 arranged at one end of the core section 6, a collision bearing disc 8, a square head disc 17 and a square head 9, and a lifting lug 10 arranged at the other end of the core section 6, a guide sleeve 11 is arranged between the collision bearing disc 8 and the water drain disc 7, a buffer spring 12 is sleeved outside the guide sleeve 11, and outer surfaces of the first-section rod; the cap assembly comprises a movable ring 13 movably sleeved on the intermediate rod 3, a first retaining ring 14 and a second retaining ring 15, wherein the first retaining ring 14 and the second retaining ring 15 are fixedly connected with the intermediate rod 3, one side of the movable ring 13 is attached to the outer key strip, the other side of the movable ring 13 is attached to one side face of the first retaining ring 14, so that the movable ring 13 can only rotate relative to the intermediate rod 3, the second retaining ring 15 is close to the end part of the intermediate rod 3, and a small distance is reserved between the first retaining ring 14 and the second retaining ring 15.

The middle parts of the side surfaces of the first baffle ring 14 and the second baffle ring 15 are provided with through holes 16 along the circumference array.

Taking a rotary drilling rod with 2 sections of intermediate rods as an example, when the rotary drilling rig is used, four sections of drilling rods are sequentially sleeved and embedded together from inside to outside according to the diameter from small to large, when the rotary drilling rig works, the power head drives the first section rod 1, the first section rod 1 is lifted, the upper part of the first section intermediate rod 3 is impacted by the impact force brought by the first section intermediate rod 3, at the moment, the movable ring 13 on the first section intermediate rod 3 is firstly impacted, so that the cap assembly part is protected, the first baffle ring 14 can directly play a role in preventing the movable ring 13 from falling off, when the first baffle ring 14 and the intermediate rod 3 are connected to fail, the first baffle ring 14 can slide relative to the intermediate rod 3, the second baffle ring 15 can simultaneously block the first baffle ring 14 and the movable ring 13, and the function of preventing the movable ring 13 from falling off is achieved.

The utility model discloses a two fender ring structures can prevent that the activity ring from droing from the intermediate lever when the sub-assembly of protective cap is not destroyed, and is reliable and stable, has the guide effect simultaneously, guarantees to dig the drilling rod smoothly work soon.

The present invention and the embodiments thereof have been described above, but the description is not limited thereto, and the embodiment shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should understand that they should not be limited to the embodiments described above, and that they can design the similar structure and embodiments without departing from the spirit of the invention.

Claims

1. The utility model provides a dig drilling rod soon with two fender ring structures which characterized in that: including first festival pole (1), end festival pole (2), locate N festival intermediate lever (3) between first festival pole (1), end festival pole (2), N more than or equal to 1, be equipped with drive plate (4) in first festival pole (1) one end, first festival pole (1) other end is equipped with flange assembly (5), N festival intermediate lever (3) one end is inside to be equipped with drive plate (4), and the other end is equipped with the cap assembly, end festival pole (2) including core festival (6), locate core festival (6) one end put water dish (7), hold and hit dish (8), square head dish (17) and square head (9) and locate core festival (6) other end lug (10), it hits to be equipped with uide bushing (11) between dish (8) and the dish (7) to hold, uide bushing (11) outside buffer spring (12) overlap, first festival pole (1), end festival pole (2) have, The outer surfaces of the N sections of intermediate rods (3) are provided with outer key bars and locking blocks;

the cap assembly comprises a movable ring (13) movably sleeved on the middle rod (3), a first blocking ring (14) fixedly connected with the middle rod (3), and a second blocking ring (15), wherein one side of the movable ring (13) is attached to the outer key strip, the other side of the movable ring (13) is attached to one side of the first blocking ring (14), so that the movable ring (13) can only rotate relative to the middle rod (3), the second blocking ring (15) is close to the end part of the middle rod (3), and a small distance is reserved between the first blocking ring (14) and the second blocking ring (15).

2. The rotary drilling rod with the double-retaining ring structure as claimed in claim 1, wherein: the middle parts of the side surfaces of the first baffle ring (14) and the second baffle ring (15) are provided with through holes (16) along the circumference array.