CN209893041U

CN209893041U - Nuclear magnetic resonance logging instrument bracket

Info

Publication number: CN209893041U
Application number: CN201920580089.1U
Authority: CN
Inventors: 张武
Original assignee: First Affiliated Hospital of Nanyang Medical College
Current assignee: First Affiliated Hospital of Nanyang Medical College
Priority date: 2019-04-25
Filing date: 2019-04-25
Publication date: 2020-01-03
Anticipated expiration: 2029-04-25

Abstract

The utility model relates to an oil field logging field especially relates to a nuclear magnetic resonance logging instrument bracket. The nuclear magnetic resonance logging instrument bracket comprises a base and a supporting seat arranged on the base, wherein a nut and a lead screw assembled with the nut in a threaded mode are rotatably assembled on the supporting seat, the nut is in axial blocking fit with the supporting seat, a tray is fixedly connected to the top end of the lead screw, the tray comprises a fixed plate fixedly connected with the end portion of the lead screw and a rotating plate rotatably assembled on the fixed plate, two clamping tables which are oppositely arranged are fixedly arranged on the rotating plate, and the two clamping tables are matched to form a V-shaped structure. The tray includes fixed plate and rotor plate, and the rotor plate can rotate on the fixed plate, when removing nuclear magnetic resonance logging instrument bracket and targetting in place, operating personnel can apply the moment of torsion to the rotor plate, and the rotor plate rotates on the fixed plate, makes the installation direction that the opening direction corresponds nuclear magnetic resonance logging instrument on the ka tai on the rotor plate, and easy operation has avoided removing whole bracket, has improved work efficiency.

Description

Nuclear magnetic resonance logging instrument bracket

Technical Field

The utility model relates to an oil field logging field especially relates to a nuclear magnetic resonance logging instrument bracket.

Background

Before oil field operation, the bottom layer structure and liquid and gas in the bottom layer need to be surveyed, quantitative or semi-quantitative evaluation work of reservoir storage performance and oil-gas-containing performance (porosity, permeability, oil-gas saturation and oil-water mobility) is carried out on an oil-gas layer, well logging operation needs to be carried out on an oil well, and a nuclear magnetic resonance logging instrument serving as an advanced logging instrument is widely applied to well logging of resources such as petroleum, coal and the like. Nmr logging instruments are generally cylindrical in shape and need to be carried on a stationary carriage for ease of movement and adjustment during logging.

The utility model discloses an authorization notice number is CN203594937U, and the china utility model patent that the authorization notice day is 2014.05.14 discloses an improved generation nuclear magnetic resonance logging instrument bracket, and this bracket includes support frame, lead screw and instrument tray, still includes lift screw, footstep bearing and rotatory handle, and the tray is the V type together, and the lift screw is connected with the lead screw thread, and the lift screw passes through the rotatable setting of footstep bearing at the top surface of support frame, lead screw and instrument tray fixed connection, rotatory handle and lift screw welding.

Foretell improved generation nuclear magnetic resonance logging instrument bracket drives the lifting screw through rotatory handle and rotates when using, and the lifting screw promotes the lead screw and goes up and down when rotating, has realized the lift of instrument tray, can finely tune the height of logging instrument. However, during logging, the axial direction of the opening of the instrument tray determines the installation direction of the logging instrument, but the opening of the instrument tray cannot accurately correspond to the installation position of the logging instrument under normal conditions, the bracket generally needs to be debugged and transposed in situ for multiple times to be accurately positioned, the bracket is large in overall weight, inconvenient to operate and low in working efficiency.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a nuclear magnetic resonance logging instrument bracket to solve the bracket among the prior art and need debug the opening direction of transposition in order to fix a position tray together many times when using, the operation is inconvenient, problem that work efficiency is low.

The utility model discloses a technical scheme of nuclear magnetic resonance logging instrument bracket does:

the nuclear magnetic resonance logging instrument bracket comprises a base and a supporting seat arranged on the base, wherein a nut and a lead screw assembled with the nut in a threaded mode are rotatably assembled on the supporting seat, the nut is in axial stop fit with the supporting seat, a tray is fixedly connected to the top end of the lead screw, the tray comprises a fixed plate fixedly connected with the end portion of the lead screw and a rotating plate rotatably assembled on the fixed plate, two clamping platforms which are oppositely arranged are fixedly arranged on the rotating plate, and the two clamping platforms are matched to form a V-shaped structure.

This technical scheme's beneficial effect lies in, the tray includes fixed plate and rotor plate, and the rotor plate can rotate on the fixed plate, when the nuclear magnetic resonance logging instrument bracket removes to target in place, and operating personnel can apply the moment of torsion to the rotor plate, and the rotor plate rotates on the fixed plate, makes the installation direction that the opening direction corresponds the nuclear magnetic resonance logging instrument on the ka tai on the rotor plate, and easy operation has avoided removing whole bracket, has improved work efficiency.

The bearing is fixedly assembled on the fixed plate, the rotating plate is connected with a rotating shaft which is used for being inserted into the bearing, the bearing is connected with an inner ring of the bearing, and the rotating plate is rotatably assembled with the fixed plate through the bearing and the rotating shaft. The rotating plate and the fixed plate are rotatably assembled through the bearing and the rotating shaft, so that the cost is low and the processing is convenient.

The fixed plate is provided with an annular groove, and the rotating plate is provided with a roller which is inserted into the annular groove. The annular groove has a guiding effect on the roller, and the roller can also support the rotating plate to avoid the inclination of the rotating plate.

The gyro wheel has four and evenly winds the circumference evenly distributed of annular. The rotating plate is stressed evenly.

Anti-skid bulges are arranged on the opposite inner wall surfaces of the two clamping tables. The nuclear magnetic resonance logging instrument is usually cylindrical, and the anti-skid bumps can prevent the nuclear magnetic resonance logging instrument from rotating between the clamping tables.

The inner wall surface of the clamping table is provided with a stepped blocking table, and the anti-skid protrusions are formed by the blocking table. The blocking table is simple to process.

The supporting seat is provided with a mounting hole for mounting a nut, one end of the nut is provided with a flange, the other end of the nut is provided with a stop ring in a threaded manner, and the nut is axially stopped with the supporting seat through the flange and the stop ring. The nut is assembled with the supporting seat stopper through the flange and the stopper ring, and the assembly is convenient.

The nut is also provided with a handle. The handle is convenient for the operator to rotate the nut.

The base is also provided with universal wheels.

Drawings

Figure 1 is a perspective view of embodiment 1 of a nmr tool holder of the invention;

FIG. 2 is a front view of the NMR tool carrier of FIG. 1;

FIG. 3 is a cross-sectional view of the NMR tool carrier of FIG. 2;

FIG. 4 is an enlarged schematic view of the NMR tool carrier of FIG. 3 at A;

FIG. 5 is a schematic illustration of a tray of the NMR tool holder of FIG. 2.

The device comprises a base 1, a universal wheel 11, a supporting seat 2, a supporting leg 21, a supporting plate 22, a lead screw 3, a nut 4, a flange 41, a retaining ring 42, a thrust ball bearing 43, a tray 5, a fixing plate 51, a rotating plate 52, a bearing 53, a rotating shaft 54, an annular groove 55, a roller 56, a handle 6, a clamping table 7 and a retaining table 71.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

The utility model discloses an embodiment 1 of nuclear magnetic resonance logging instrument bracket, as shown in fig. 1 to 5, this nuclear magnetic resonance logging instrument bracket includes base 1 and sets up supporting seat 2 on base 1, still includes the tray 5 of being connected through lead screw 3, nut 4 with supporting seat 2.

Base 1 is the rectangular plate structure, and the below of base 1 is provided with four universal wheels 11, and four universal wheels 11 are four border position of unable adjustment base 1 respectively, and the removal of whole bracket is convenient for to universal wheel 11. The supporting seat 2 comprises supporting legs 21 fixedly connected with the base 1 and supporting plates 22 arranged at the top ends of the supporting legs 21, the supporting legs 21 are four in total and are uniformly distributed at four corners of the supporting plates 22 at intervals, and the supporting legs 21 can form accommodating spaces used for accommodating the screw rods 3 between the supporting plates 22 and the base 1.

The center of the supporting seat 2 is provided with a mounting hole for mounting the nut 4, the nut 4 is a T-shaped nut 4, one end of the nut 4 is integrally formed with a flange 41, the other end of the nut 4 is formed with an external thread, a baffle ring 42 is rotatably arranged on the external thread, an internal thread is arranged on the inner wall of the baffle ring 42, the baffle ring 42 and the nut 4 are assembled through threads, and the nut 4 is axially assembled with the supporting seat 2 through the flange 41 and the baffle ring 42 in a blocking manner.

The flange 41 of nut 4 is gone up the welding and is had handle 6, and handle 6 is total four and along the circumference interval equipartition of nut 4, and handle 6 is convenient for operating personnel to rotate nut 4. And a thrust ball bearing 43 is also assembled between the flange 41 of the nut 4 and the support seat 2, and the thrust ball bearing 43 can reduce the friction force between the nut 4 and the support seat 2 and reduce the labor intensity of operators. The screw rod 3 is rotatably assembled in the nut 4 through a thread structure, the screw rod 3 and the nut 4 form a screw rod nut 4 mechanism, and when the nut 4 rotates, the screw rod 3 moves up and down under the action of the thread structure.

The tray 5 is welded and fixed at the top end of the screw rod 3. The tray 5 comprises a fixed plate 51 fixed with the screw rod 3 by welding and a rotating plate 52 rotatably assembled on the fixed plate 51, a bearing 53 is fixedly assembled at the center of the fixed plate 51, a rotating shaft 54 inserted into the bearing 53 is processed at one side of the rotating plate 52 close to the fixed plate 51, the rotating shaft 54 is fixed with the inner ring of the bearing 53, and the rotating plate 52 can rotate on the fixed plate 51 under the action of the bearing 53 and the rotating shaft 54. A ring groove 55 is formed in the top surface of the fixed plate 51, the ring groove 55 and the bearing 53 are coaxially arranged, rollers 56 are further assembled on one side of the rotating plate 52 close to the fixed plate 51, the number of the rollers 56 is four, the rollers are uniformly distributed along the circumferential direction of the ring groove 55, and the rollers 56 are used for being inserted into the ring groove 55; in other embodiments, the rollers 56 may be three or six, etc. The roller 56 has a supporting function on the rotating plate 52, and when the rotating plate 52 rotates, the roller 56 prevents the rotating plate 52 from inclining, and reduces the abrasion of the bearing 53.

One side of the rotating plate 52, which is far away from the fixed plate 51, is further provided with two clamping platforms 7, the two clamping platforms 7 are oppositely arranged and matched to form a V-shaped structure, and an accommodating space for accommodating the nuclear magnetic resonance logging instrument is formed between the two clamping platforms 7. Step-shaped blocking platforms 71 are arranged on the opposite inner walls of the two clamping platforms 7, and the blocking platforms 71 are in contact with the outer wall surface of the nuclear magnetic resonance logging instrument, so that the nuclear magnetic resonance logging instrument is prevented from rotating in the clamping platforms 7, and the blocking platforms 71 form anti-skid protrusions.

When the bracket of the nuclear magnetic resonance logging instrument is used, the bracket is pushed to a logging position, an operator rotates the nut 4 through the handle 6, the screw rod 3 rises under the action of the threads, and the tray 5 is driven to rise to a proper position; the nuclear magnetic resonance logging instrument is placed between the two clamping tables 7, an operator can toggle the rotating plate 52 to conduct fine adjustment according to needs, the axis of the nuclear magnetic resonance logging instrument is rotated to a proper position, and subsequent logging is facilitated.

When the bracket of the nuclear magnetic resonance logging instrument is used, the bracket is pushed to a logging position, an operator rotates a nut through a handle, a screw rod rises under the action of threads, and a tray is driven to rise to a proper position; the nuclear magnetic resonance logging instrument is placed between the two clamping tables, an operator can pull the rotating plate to finely adjust the rotating plate according to needs, the axis of the nuclear magnetic resonance logging instrument is rotated to a proper position, and subsequent logging is facilitated.

In other embodiments of the nuclear magnetic resonance logging instrument bracket of the present invention, a thrust ball bearing may be disposed between the fixed plate and the rotating plate, and the rotating plate is rotatably assembled on the fixed plate through the thrust ball bearing; in other embodiments, a plurality of hemispherical bosses can be uniformly arranged on the inner wall of the clamping table, and the bosses form anti-skid protrusions; the base also can be the tripod structure among the prior art, and the universal wheel setting is in the bottom of tripod.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.

Claims

1. The bracket is characterized in that the tray comprises a fixed plate fixedly connected with the end part of the lead screw and a rotating plate rotatably assembled on the fixed plate, the rotating plate is fixedly provided with two clamping platforms which are oppositely arranged, and the two clamping platforms are matched to form a V-shaped structure.

2. The nmr logging instrument holder of claim 1, wherein the fixed plate is fixedly assembled with a bearing, the rotating plate is connected with a rotating shaft inserted into the bearing, the bearing is connected with an inner ring of the bearing, and the rotating plate is rotatably assembled with the fixed plate through the bearing and the rotating shaft.

3. The nmr tool holder of claim 2, wherein the fixed plate has a circumferential groove, and the rotatable plate has rollers for engaging the circumferential groove.

4. The nmr tool carrier of claim 3, wherein the rollers are four and evenly distributed around the circumference of the annular groove.

5. A NMR logging instrument holder as claimed in any of claims 1-4, wherein the opposing inner walls of the two clamping platforms are provided with anti-slip protrusions.

6. The NMR logging instrument holder according to claim 5, wherein a stepped stopper is provided on an inner wall surface of the holder, and the anti-slip protrusion is formed by the stopper.

7. A NMR logging instrument holder according to any of claims 1-4, wherein the support base is provided with a mounting hole for mounting a nut, one end of the nut is provided with a flange, the other end of the nut is provided with a stop ring by screw thread, and the nut is axially stopped from the support base by the flange and the stop ring.

8. The nmr tool holder of claim 7, wherein the nut further comprises a handle.

9. A NMR logging instrument holder according to any of claims 1-4, wherein the base is further provided with universal wheels.