CN216593060U

CN216593060U - Deep hole internal thread wire combination detection device

Info

Publication number: CN216593060U
Application number: CN202122896987.8U
Authority: CN
Inventors: 刘丹; 尹解元; 桂志刚; 张国英; 罗雪松; 汪超; 程杰; 张津培
Original assignee: Wuhan Heavy Industry Casting and Forging Co Ltd
Current assignee: Wuhan Heavy Industry Casting and Forging Co Ltd
Priority date: 2021-11-24
Filing date: 2021-11-24
Publication date: 2022-05-24
Anticipated expiration: 2031-11-24

Abstract

The utility model discloses a deep hole internal thread wire combination detection device, which solves the problems that the conventional deep hole internal thread wire combination detection cannot directly apply torsion to a cake-shaped plug, and the horizontal clamping is influenced by gravity, so that the central axes of two parts are difficult to coincide. The utility model improves the assembly efficiency, and has simple wire combination detection process, easy operation, high efficiency and good reliability.

Description

Deep hole internal thread wire combination detection device

Technical Field

The utility model relates to an inner hole detection device, in particular to a deep hole internal thread combination detection device.

Background

Threaded connections are widely used in machinery. Generally, the external threads of the ring nut and the shaft part are combined, the shaft part is clamped on a horizontal lathe, a bracket is adopted for adjustment and support, the other bracket supports the excircle of the ring nut, or a crane lifting belt is adopted for winding and lifting the excircle of the ring nut, and then a spanner rod is inserted into a small hole on the excircle of the ring nut to be screwed. For the structural wire combination of the cake-shaped external thread plug and the deep hole internal thread part, torsion cannot be directly applied to the cake-shaped plug, and the horizontal clamping is influenced by gravity, so that the central axes of the two parts are difficult to coincide, and therefore, the device is particularly important and critical for the reasonable wire combination of the deep hole internal thread.

Disclosure of Invention

The utility model aims to solve the technical problems and provides a deep-hole internal thread combination detection device which is simple in structure, easy to operate, good in safety and reliability and high in assembly efficiency.

The technical scheme includes that the device comprises a plug, a support, a torsion bar and a torsion handle which are sequentially connected from bottom to top, wherein the plug is an annular cylinder, and an external thread matched with the internal thread of the deep hole is arranged on the outer circular surface.

The lower section of the plug is provided with the external thread, the upper section of the plug is provided with an annular limit stop, and the maximum external diameter of the annular limit stop is larger than that of the external thread and smaller than the aperture of the end surface spigot of the internal thread in the deep hole.

The plug is connected with the support through threads.

And a depth scale is arranged on the torsion bar.

The support and the torsion bar are connected through a bracket.

The support is an I-steel support.

Has the advantages that: the utility model solves the problems that torsion cannot be directly applied to the cake-shaped plug, the horizontal clamping is influenced by gravity, and the central axes of the two parts are difficult to coincide, improves the assembly efficiency, and has simple wire combination detection process, easy operation, high efficiency and good reliability.

Drawings

FIG. 1 is a diagram of the detection state of the present invention.

Fig. 2 is a schematic view of a yarn combination detection device.

Fig. 3 is an enlarged view of the external thread plug.

FIG. 4 is a schematic view of a deep-hole internally threaded part.

The device comprises a 1-deep hole internal thread wire combination detection device, a 1.1-torsion handle, a 1.2-torsion rod, a 1.3-depth scale, a 1.4-bracket and a 1.5-I-shaped steel support; 2-plug, 2.1-annular limit stop block and 2.2-external thread; 3-deep hole internal thread part, 3.1-orifice end face, 3.2-inner hole, 3.3-end face spigot and 3.4-internal thread.

Detailed Description

The utility model is further explained below with reference to the drawings in which:

referring to fig. 2, the deep hole internal thread wire combination detection device 1 is sequentially connected with a plug 2, an i-shaped steel support 1.5, a torsion bar 1.2 and a torsion handle 1.1 from bottom to top, wherein the plug 2 is in threaded connection with the i-shaped steel support 1.5; the I-shaped steel support 1.5 is connected with the torsion bar 1.2 through a bracket 1.4; the torsion bar 1.2 is provided with a depth scale 1.3, and the axle center of the torsion bar 1.2 is superposed with the central line of the plug 2.

The plug 2 is an annular cylinder, referring to fig. 3 and 4, the lower section of the plug 2 is provided with the external thread 2.2 matched with the internal thread 3.4 of the deep-hole internal thread part 3, the upper section of the plug is provided with an annular limit stop 2.1, and the outer diameter of the annular limit stop 2.1 is larger than the maximum outer diameter of the external thread 2.2 and smaller than the aperture of the deep-hole internal thread end surface spigot 3.3.

And (3) a silk combination detection process:

1. the deep hole internal thread part 3 is placed in a pit with an upward hole opening, the end surface 3.1 of the hole opening is adjusted to be at the same horizontal height, the periphery is covered by a well cover, and the plane height of the applied torque is higher than that of the well cover, so that personnel can conveniently stand for construction;

2. coating molybdenum disulfide lithium-based lubricating grease on the tooth surface of an external thread 2.2 of a plug 2 to reduce friction and abrasion, lifting a torsion handle 1.1 at the upper section of a deep-hole internal thread wire-closing detection device 1 by a crane, driving the external thread plug 2 to be inserted into an inner hole 3.2 of a deep-hole internal thread part 3, enabling the plug 2 to be just positioned above an internal thread 3.4, and rotating the torsion handle 1.1 left and right by taking a torsion rod 1.2 as a center to enable the central line of the plug 2 to be superposed with the axis of the deep-hole internal thread part 3;

3. sleeving the sleeve on the torque handle 1.1, screwing the sleeve along the screwing direction of the threads manually, and slowly descending a crane hook in the process of wire combination to avoid the gravity of the plug 2 from damaging the tooth surface of the internal thread 3.4 of the deep-hole internal thread part 3; when the wire is combined by 1-2 screw pitches, carefully checking whether the outer end face of the plug 2 and the orifice end face 3.1 of the deep-hole internal thread part 3 are equidistant, judging whether the axes of the plug 2 and the orifice end face coincide, continuously combining the wire when the axes coincide, and reversing about 1/2 circles when the axes coincide and 1/2-1 circles are combined; and (3) screwing until the screw can not be screwed in any more, and the annular limit stop 2.1 just abuts against the spigot of the end face of the internal thread of the deep hole for 3.3, reading the distance data from the outer end face of the measuring plug 2 to the orifice end face 3.1 of the part on the depth scale 1.3 on the torsion bar 1.2, and comparing the distance data with the designed size to judge whether the screw is in place.

When the external thread plug 2 is disassembled, the torsion handle 1.1 is rotated reversely, and is screwed out manually, so that quick rotation is avoided, and the surface quality of the thread is prevented from being damaged; after manual screwing-out is completed, the crane hoisting torsion handle 1.1 is reused, the plug 2 is hoisted away, the extrusion condition of lubricating grease on the tooth surface of the external thread 2.2 of the plug 2 is observed, and the wire combination condition of the internal thread of the deep hole can be judged.

Claims

1. The deep hole internal thread wire combination detection device is characterized by comprising a plug, a support, a torsion bar and a torsion handle which are sequentially connected from bottom to top, wherein the plug is an annular cylinder, external threads matched with the deep hole internal threads are arranged on the outer circular surface of the plug, and a depth scale is arranged on the torsion bar.

2. The deep-hole internal thread combination detection device according to claim 1, wherein the lower section of the plug is provided with the external thread, the upper section of the plug is provided with an annular limit stop, and the maximum external diameter of the annular limit stop is larger than the external diameter of the external thread and smaller than the aperture of the end surface spigot of the deep-hole internal thread.

3. The deep-hole internal thread twisting detection device according to claim 1 or 2, wherein the plug is in threaded connection with the support.

4. The deep hole internal thread twisting detection device according to claim 1 or 2, wherein the support and the torsion bar are connected through a bracket.

5. The deep hole internal thread twisting detection device according to claim 1 or 2, wherein the support is an i-steel support.