CN221256693U

CN221256693U - Drill rod clamping device

Info

Publication number: CN221256693U
Application number: CN202323256380.9U
Authority: CN
Inventors: 陈杰; 王洪江; 张士友; 周曰虎; 王付伟; 刘强; 姜东旭
Original assignee: Haikou Marine Geological Survey Center Of China Geological Survey
Current assignee: Haikou Marine Geological Survey Center Of China Geological Survey
Priority date: 2023-11-30
Filing date: 2023-11-30
Publication date: 2024-07-02
Anticipated expiration: 2033-11-30

Abstract

The utility model provides a drill rod clamping device, and belongs to the technical field of drilling. The drill rod clamping device comprises a main body structure and a movable clamping structure. The main structure comprises a limiting ring and two fixing blocks, two ends of the outer side wall of the limiting ring are welded with the opposite ends of the two fixing blocks respectively, the movable clamping structure comprises clamping pieces and adjusting pieces, the clamping pieces are placed inside the limiting ring, the outer side wall of the clamping piece is fixedly connected with one end of the adjusting piece, the outer wall of the adjusting piece is in threaded connection with the inner wall of the limiting ring, the other end of the adjusting piece extends out of the outer wall of the limiting ring, the clamping pieces and the adjusting pieces mounted on the inner wall of the limiting ring are matched with each other, a drill rod can be clamped effectively, positioning treatment is conducted on the drill rod, the adjusting pieces can be used for adjusting the drill rods with different diameters, and therefore the problems that the existing drill rod clamping device cannot clamp the drill rods with different diameters easily and the drill rods are easy to shake and are inconvenient to disassemble and overhaul are solved.

Description

Drill rod clamping device

Technical Field

The application relates to the technical field of drilling, in particular to a drill rod clamping device.

Background

The method is characterized in that a main technical means, called hydrologic drilling for short, is adopted to obtain data required by reasonable development and utilization of groundwater. Compared with common geological drilling, the hydrogeological drilling is characterized by larger drilling diameter, more complex drilling process and well forming process and larger equipment capacity. Hydrogeological drilling can be generally divided into three types, namely a hydrogeological census hole, a hydrogeological exploration hole and a exploration and mining combination hole. In addition, there are geothermal wells for exploration and exploitation of geothermal resources, mainly geothermal water.

At present, drilling equipment is needed for hydrologic drilling, wherein the drilling operation is a very key link in the whole engineering, and along with the continuous deepening of the drilling depth, a section of drill rod is needed to be installed to increase the length of the drill rod so as to realize the continuous expansion of the drilling depth; when drilling the drill rod, need carry out the centre gripping to the drill rod that has on the pile driver and avoid the drill rod to rock axially, lead to drilling also can warp, current drill rod clamping device adopts the mode of fixed centre gripping: the main structure of the device comprises a triangular support frame, two flange plates, a plurality of cylinders and a plurality of bearings, wherein the triangular support frame is fixed on the ground, the purpose of fixing the device is achieved, the opposite surfaces of the two flange plates are respectively welded at two ends of the plurality of cylinders at equal intervals, the outer wall of the two flange plates is hinged with the top end of the triangular support frame, a clamping channel is formed, the inner rings of the plurality of bearings are fixedly connected with the outer walls of the plurality of cylinders, the outer rings of the plurality of bearings are tightly attached to the outer walls of drill rods passing through the clamping channel, the drill rods can be effectively clamped, the drill rods are positioned, but the scheme still has certain defects, and the inventor finds out through research. The prior drill rod clamping device has the problems that the clamping channel is fixed in size, drill rods with different diameters are not easy to clamp, the drill rods are easy to shake, and the disassembly and the overhaul are inconvenient.

Disclosure of utility model

In order to overcome the above disadvantages, the present application provides a clamping device for a drill rod, so as to solve the problems set forth in the background art.

In order to achieve the above purpose, the technical scheme adopted by the utility model for solving the technical problems is as follows:

A drill rod clamping device comprises a main body structure and a movable clamping structure.

The main structure comprises a limiting ring and two fixing blocks, two ends of the outer side wall of the limiting ring are respectively welded with two opposite ends of the fixing blocks, the movable clamping structure comprises a clamping piece and an adjusting piece, the clamping piece is placed inside the limiting ring, the outer side wall is fixedly connected with one end of the adjusting piece, the outer wall of the adjusting piece is in threaded connection with the inner wall of the limiting ring, and the other end of the adjusting piece extends out of the outer wall of the limiting ring.

Further, the holder includes four arc, four cylindricality running rollers, four bottom plates and four roof, four the arc both sides can dock each other, and place in inside the spacing ring, four bottom plate and four the roof opposite surface outward flange respectively with four both ends bolted connection about the arc, and the inward flange is from having even post, four cylindricality running rollers both ends respectively with four bottom plate and four roof opposite surface inward flange laminating, and inner circle and even post outer wall joint, cylindricality running roller outer lane extends the bottom plate with the roof outer wall.

Further, the regulating piece comprises four bearings, four regulating bolts and four nuts, wherein the four bearing outer rings are respectively embedded and fixed on the four outer walls of the arc-shaped plates, one ends of the four regulating bolts are respectively fixedly connected with the four bearing inner rings, the outer walls are respectively in threaded connection with the four inner walls of the nuts, and the four outer walls of the nuts are respectively embedded and fixed on the inner walls of the limiting rings at equal intervals.

Further, the limiting ring comprises a semi-ring plate I, a semi-ring plate II and four connecting blocks, wherein the inner wall of the semi-ring plate I and the inner wall of the semi-ring plate II are equally spaced and fixedly provided with four nuts, two fixing blocks are welded on two sides of the outer wall, four connecting blocks are respectively arranged at two ends of the fixing blocks and are mutually attached, and the four connecting blocks are mutually connected through bolts.

Further, the main body structure further comprises a base, the inner wall of the base is attached to the upper end and the lower end of the limiting ring and the two fixing blocks, and the two fixing blocks are respectively connected with bolts on two sides of the inner wall of the base.

Further, the main body structure further comprises a drill rod, and the outer wall of the drill rod is tightly attached to the opposite surfaces of the four cylindrical rollers respectively.

The beneficial effects are that: the application provides a drill rod clamping device, which can effectively clamp a drill rod through the matching between a clamping piece arranged in a limiting ring and an adjusting piece arranged on the inner wall, and position the drill rod, can be disassembled in a bolt fixing mode between a semi-annular plate I and a semi-annular plate II, can be arranged in the use of the drill rod, can realize the purpose of clamping the drill rod through the tight contact of four cylindrical rollers and the outer wall of the drill rod, does not influence the rotation of the drill rod under the driving of a power head, can prevent the drill rod from axially shaking when the drilling depth is deepened, and can realize the accurate adjustment of the four cylindrical rollers to clamp the drill rods with different diameters through the matching of four adjusting bolts and four nuts, so that the problems that the existing drill rod clamping device is not easy to clamp the drill rods with different diameters, is easy to shake, and is inconvenient to disassemble and overhaul are effectively solved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present application and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a pipe clamping apparatus according to an embodiment of the present application;

FIG. 2 is a schematic view of a portion of a rod clamping device according to an embodiment of the present application;

FIG. 3 is a schematic view of a base structure according to an embodiment of the present application;

FIG. 4 is a schematic view of a clamped construction of a drill rod according to an embodiment of the present application;

Fig. 5 is a schematic diagram of a connection structure between a clamping member and a bearing according to an embodiment of the present application.

In the figure: 10-a main body structure; 110-limiting rings; 120-fixing blocks; 130-a base; 140-drill pipe; 20-a movable clamping structure; 210-a clamping member; 220-an adjusting member; 211-arc plates; 212-a cylindrical roller; 213-a bottom plate; 214-top plate; 221-bearings; 222-adjusting bolts; 223-nut; 111-semi-ring plate I; 112-semi-ring plate II; 113-a block.

Detailed Description

The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments.

Referring to fig. 1, the present application provides a clamping device for a drill rod, which includes a main body structure 10 and a movable clamping structure 20.

Wherein the body structure 10 is adapted to be coupled to a pile driver and the movable clamping structure 20 is adapted to clamp a drill rod 140.

Referring to fig. 1, 2, 3 and 4, the main structure 10 includes a limiting ring 110, two fixing blocks 120 welded on the outer side wall of the limiting ring 110, a base 130 connected with the fixing blocks 120 through bolts, and a drill stem 140 passing through a clamping channel, wherein the limiting ring 110 includes a half ring plate i 111, a half ring plate ii 112 and four connecting blocks 113.

Wherein, the design of spacing ring 110 is convenient for install movable clamping structure 20, and inside can form a centre gripping passageway, and be convenient for drilling rod 140 passes, and semi-ring plate I111 and semi-ring plate II 112 laminating each other, and four links 113 adopt bolted connection for semi-ring plate I111 and semi-ring plate II 112 dismantle and maintenance become convenient and fast, and the user also can change and adjust other parts conveniently.

Wherein, fixed block 120 and spacing ring 110 outer wall welding, and fixed block 120 surface has seted up the bolt hole, be convenient for with base 130 bolt connection for spacing ring 110 can be quick install into base 130 inside, also dismantlement that can be quick.

The design of the base 130 makes the device more convenient to use, a user can place the limiting ring 110 inside the base 130 and connect the fixing block 120 and the base 130 through bolts, so that the clamping and operation of workpieces can be more conveniently carried out, the other end of the base 130 can be fixedly connected with a pile driver, and the base 130 can be made of cast iron or steel and other materials so as to ensure the stability and the service life of the device.

The design of the drill rod 140 facilitates the user to understand how the device clamps the drill rod 140, and the outer wall of the drill rod 140 is tightly attached to the opposite surfaces of the four cylindrical rollers 212, so that the drill rod 140 can be prevented from shaking left and right when the drilling depth is deepened.

Referring to fig. 1, 2, 4 and 5, the movable clamping structure 20 includes a clamping member 210 and an adjusting member 220 mounted on an inner wall of the limiting ring 110, wherein the clamping member 210 includes four arc plates 211, four cylindrical rollers 212, four bottom plates 213 and four top plates 214; the adjusting member 220 includes four bearings 221, four adjusting bolts 222, and four nuts 223.

The clamping piece 210 is composed of four arc plates 211, four cylindrical rollers 212, four bottom plates 213 and four top plates 214, and all the components are mutually fixed in a mode of bolt connection, clamping and the like, so that the structure of the clamping piece 210 is more stable and can bear larger load and pressure; because the modes of bolt connection, clamping connection and the like are adopted among the components to be mutually fixed, the relative position and the dimensional accuracy among the components can be ensured, so that the accuracy of the whole clamping piece 210 is improved, meanwhile, the disassembly and the maintenance of the clamping piece 210 become convenient and quick, a user can conveniently replace and adjust the components, the maintenance and repair efficiency is improved, the four cylindrical rollers 212 are in contact with the outer wall of the drill rod 140, the rotation of the drill rod 140 is not affected, the drill rod 140 is prevented from axially shaking during deepening the drilling, and the drilling cannot be deformed due to shaking of the drill rod 140.

The design of the adjusting member 220 enables a user to conveniently adjust the clamping member 210, the user can quickly adjust the clamping member 210 through the matching of the adjusting bolt 222 and the nut 223, and necessary adjustment and operation are performed, meanwhile, the arc plate 211 cannot rotate along with the adjusting bolt 222 by utilizing the bearing 221 embedded on the outer wall of the arc plate 211, the position of the arc plate 211 is adjusted by rotating the adjusting bolt 222 to enable the cylindrical roller 212 to be in close contact with the drill rod 140, the purpose of clamping drill rods 140 with different diameters is achieved, and the drill rod 140 is prevented from shaking.

The working principle of the drill rod clamping device is as follows: during the use, confirm at first that base 130 is fixed with the pile driver, link together four links 113 through the bolt fastening, make semi-ring board I111 and semi-ring board II 112 interconnect, and install in base 130 inner wall through two fixed blocks 120, the bolt is used again to link together two fixed blocks 120 and base 130, accomplish the fixed to spacing ring 110, the position of four arc 211 is adjusted to four adjusting bolt 222 of rotatory and four nut 223 inner wall threaded connection, make four cylindricality running roller 212 opposite ends and the laminating of drilling rod 140 outer wall, accomplish the purpose of centre gripping different diameter drilling rods 140, and prevent that drilling rod 140 from rocking axially.

It should be noted that, specific model specifications of the cylindrical roller 212 and the adjusting bolt 222 need to be determined by selecting a model according to an actual specification of the device, and a specific model selecting calculation method adopts the prior art in the art, so detailed description is omitted.

It will be evident to those skilled in the art that the application is not limited to the details of the foregoing illustrative embodiments, and that the present application may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A pipe clamping device, comprising:

The main body structure (10), the main body structure (10) comprises a limiting ring (110) and two fixed blocks (120), and two ends of the outer side wall of the limiting ring (110) are welded with the opposite ends of the two fixed blocks (120) respectively;

the movable clamping structure (20), the movable clamping structure (20) comprises a clamping piece (210) and an adjusting piece (220), the clamping piece (210) is placed inside the limiting ring (110), the outer side wall is fixedly connected with one end of the adjusting piece (220), the outer wall of the adjusting piece (220) is in threaded connection with the inner wall of the limiting ring (110), and the other end of the adjusting piece extends out of the outer wall of the limiting ring (110).

2. The device according to claim 1, wherein the clamping member (210) comprises four arc plates (211), four cylindrical rollers (212), four bottom plates (213) and four top plates (214), two sides of the four arc plates (211) can be mutually abutted and placed inside the limiting ring (110), opposite outer edges of the four bottom plates (213) and the four top plates (214) are respectively connected with upper and lower ends of the four arc plates (211) through bolts, inner edges are provided with connecting columns, two ends of the four cylindrical rollers (212) are respectively attached to opposite inner edges of the four bottom plates (213) and the four top plates (214), an inner ring is clamped with the outer walls of the connecting columns, and an outer ring of the cylindrical rollers (212) extends out of the bottom plates (213) and the outer walls of the top plates (214).

3. The pipe clamping device according to claim 2, wherein the adjusting member (220) comprises four bearings (221), four adjusting bolts (222) and four nuts (223), outer rings of the four bearings (221) are respectively embedded and fixed on outer walls of the four arc plates (211), one ends of the four adjusting bolts (222) are respectively fixedly connected with inner rings of the four bearings (221), outer walls are respectively in threaded connection with inner walls of the four nuts (223), and outer walls of the four nuts (223) are respectively embedded and fixed on inner walls of the limiting rings (110) at equal intervals.

4. A rod clamping device according to claim 3, wherein the limiting ring (110) comprises a semi-ring plate i (111), a semi-ring plate ii (112) and four connecting blocks (113), four nuts (223) are embedded in the inner wall of the semi-ring plate i (111) and the semi-ring plate ii (112) at equal intervals, two fixing blocks (120) are welded on two sides of the outer wall, four connecting blocks (113) are respectively arranged at two ends of the fixing blocks, the connecting blocks are mutually attached, and the four connecting blocks (113) are mutually connected through bolts.

5. The device according to claim 4, wherein the main body structure (10) further comprises a base (130), the inner wall of the base (130) is attached to the upper end and the lower end of the limiting ring (110) and the two fixing blocks (120), and the two fixing blocks (120) are respectively connected with two side bolts on the inner wall of the base (130).

6. The pipe clamping apparatus of claim 5, wherein the main body structure (10) further comprises a drill pipe (140), and wherein the outer walls of the drill pipe (140) are respectively in close contact with the opposite surfaces of the four cylindrical rollers (212).