CN216666257U

CN216666257U - Positioning support

Info

Publication number: CN216666257U
Application number: CN202123271891.9U
Authority: CN
Inventors: 薛胜龙; 杨玲; 王先鹏
Original assignee: Guizhou Aerospace Kaishan Petroleum Instrument Co Ltd
Current assignee: Guizhou Aerospace Kaishan Petroleum Instrument Co Ltd
Priority date: 2021-12-23
Filing date: 2021-12-23
Publication date: 2022-06-03
Anticipated expiration: 2031-12-23

Abstract

The utility model discloses a positioning bracket, which comprises a bracket body (1), wherein the bracket body (1) is of a cylindrical structure; a positioning shaft limiting groove (2) is arranged in the bracket body (1); the groove shape of the positioning shaft limiting groove (2) is T-shaped, the T-shaped cross bar (3) is horizontally arranged, and the T-shaped vertical bar (4) is vertically arranged. The utility model eliminates two bevel edges with an included angle of 80 degrees and two bevel edges with an included angle of 154 degrees in the existing positioning bracket, and simplifies the part processing. The slope of the semicircular arc of the positioning bracket is reduced, but the slope locking function is still kept, the compression amount of the positioning shaft is reduced, the corresponding locking force between the positioning shaft and the semicircular arc of the positioning bracket is reduced, the starting current of the motor is reduced during transposition, and the requirement on the motor is reduced.

Description

Positioning support

Technical Field

The utility model relates to a positioning support, and belongs to the technical field of sensitive elements in a gyroscope well trace tester.

Background

The existing positioning bracket has four bevel edges: two oblique sides with an angle of 80 degrees and two oblique sides with an angle of 154 degrees. The processing precision requirement of the two bevel edges with the included angle of 80 degrees is high, the processing difficulty is high, and the rejection rate of parts is high.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a positioning bracket to reduce the difficulty of part processing, improve the qualification rate of parts and optimize a rotary positioning structure, thereby overcoming the defects of the prior art.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model discloses a positioning bracket, which comprises a bracket body, wherein the bracket body is of a cylindrical structure; a positioning shaft limiting groove is arranged in the bracket body; the groove shape of the positioning shaft limiting groove is T-shaped, the T-shaped is horizontally arranged in a transverse direction, and the T-shaped is vertically arranged in a vertical direction.

In the positioning bracket, the width a of the T-shaped transverse part is far smaller than the width b of the T-shaped vertical part.

In the positioning bracket, two ends of the T-shaped transverse part are semi-circular arcs, and the semi-circular arcs and the T-shaped vertical part are in circular arc transition; the T-shaped vertical bottom is a circular arc surface.

In the positioning bracket, an eccentric distance c is arranged between the midpoint of a connecting line of the centers of the semicircular arcs at the two ends of the T-shaped cross and the center line of the bracket body.

Due to the adoption of the technical scheme, compared with the prior art, the utility model cancels two bevel edges with an included angle of 80 degrees and two bevel edges with an included angle of 154 degrees in the existing positioning bracket, and simplifies the part processing. The slope of the semicircular arc of the positioning bracket is reduced, but the slope locking function is still kept, the compression amount of the positioning shaft is reduced, the corresponding locking force between the positioning shaft and the semicircular arc of the positioning bracket is reduced, the starting current of the motor is reduced during transposition, and the requirement on the motor is reduced.

Drawings

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

FIG. 2 is a three-dimensional schematic of the present invention;

FIG. 3 is a schematic view of the present invention in the direction A;

FIG. 4 is a schematic view of a conventional positioning shaft limiting groove;

FIG. 5 is a schematic view of the positioning shaft within a positioning shaft retaining groove;

FIG. 6 is a schematic view of a gyroscopic well trace tester constructed using the positioning frame of the present invention.

The labels in the figures are: 1-bracket body, 2-positioning shaft limiting groove, 3-T type transverse, 4-T type vertical, 5-semicircular arc, 6-circular arc transition, 7-circular arc surface, 8-semicircular arc center connecting line, 9-bracket body central line, 10-motor, 11-coupler, 12-transmission shaft, 13-gyro short section and 14-positioning shaft.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

The utility model discloses a positioning bracket, which is shown in figures 1 and 2 and comprises a bracket body 1, wherein the bracket body 1 is of a cylindrical structure; a positioning shaft limiting groove 2 is arranged in the bracket body 1; as shown in FIG. 3, the groove shape of the positioning shaft limiting groove 2 is T-shaped, the T-shaped cross shaft 3 is horizontally arranged, and the T-shaped vertical shaft 4 is vertically arranged. The width a of the T-shaped rail 3 is much smaller than the width b of the T-shaped shaft 4. Two ends of the T-shaped transverse part 3 are semi-circular arcs 5, and circular arc transition 6 is formed between the semi-circular arcs 5 and the T-shaped vertical part 4; the bottom of the T-shaped vertical 4 is a circular arc surface 7. An eccentric distance c is arranged between the midpoint of a connecting line 8 of the circle centers of the semicircular arcs at the two ends of the T-shaped cross 3 and the central line 9 of the bracket body.

The utility model relates to an improvement of the existing positioning bracket, and a positioning shaft limiting groove in the existing positioning bracket is shown in figure 4. As can be seen from fig. 4, the positioning shaft limiting groove in the existing positioning bracket has four bevel edges: two oblique sides with an angle of 80 degrees and two oblique sides with an angle of 154 degrees. The processing precision requirement of the two bevel edges with the included angle of 80 degrees is high, the processing difficulty is high, and the rejection rate of parts is high. The utility model improves the prior locating shaft limiting groove into a locating shaft limiting groove 2 shown in figure 3. Two bevel edges with an included angle of 80 degrees and two bevel edges with an included angle of 154 degrees are eliminated, and part machining is simplified. In addition, the slope of the semicircular arcs 5 on two sides of the positioning shaft limiting groove 2 of the improved positioning support is reduced, and the slope locking function is still kept. Compared with the prior art, the compression amount of the positioning shaft 14 is reduced, the corresponding locking force between the positioning shaft 14 and the semicircular arc 5 of the positioning support is reduced, the starting current of the motor 10 is reduced during transposition, and the requirement on the motor 10 is lowered.

FIG. 6 is a schematic view of a gyroscopic well trace tester constructed using the positioning frame of the present invention. The motor 10 is connected with a transmission shaft 12 through a coupling 11, and the transmission shaft 12 is connected with a gyro nipple 13. During operation of the gyro well trace tester, the gyro short section 13 is driven to rotate through the rotation of the motor 10, the positioning shaft 14 on the transmission shaft 12 rotates in the positioning shaft limiting groove 2 of the support body 1, and along with the rotation of the positioning shaft 14 towards the direction of the semicircular arc 5, the positioning shaft 14 is gradually compressed until the side edge of the positioning shaft 14 is stopped on the T-shaped cross of the positioning support, and the circular arc edge of the positioning shaft 14 is stopped on the locking rotating mechanism in the semicircular arc 5, so that the testing operation of the gyro well trace tester is realized.

The utility model has the following characteristics:

1) the four bevel edges are eliminated, so that the machining precision is easy to ensure, and the machining difficulty is reduced;

2) the compression amount is reduced when the positioning shaft rotates, and the requirement on the motor is reduced.

Claims

1. A locating support comprises a support body (1), and is characterized in that: the bracket body (1) is of a cylindrical structure; a positioning shaft limiting groove (2) is arranged in the bracket body (1); the groove shape of the positioning shaft limiting groove (2) is T-shaped, the T-shaped transverse groove (3) is horizontally arranged, and the T-shaped vertical groove (4) is vertically arranged.

2. The positioning frame of claim 1, wherein: the width a of the T-shaped transverse part (3) is far smaller than the width b of the T-shaped vertical part (4).

3. The positioning frame of claim 1, wherein: both ends of the T-shaped transverse part (3) are provided with semi-circular arcs (5), and circular arc transition (6) is arranged between the semi-circular arcs (5) and the T-shaped vertical part (4); the bottom of the T-shaped vertical (4) is a circular arc surface (7).

4. The positioning bracket of claim 1, wherein: an eccentric distance c is arranged between the midpoint of a semicircular arc circle center connecting line (8) at the two ends of the T-shaped cross bar (3) and the central line (9) of the support body.