CN218785530U - Quick dismounting device of double-end stud - Google Patents
Quick dismounting device of double-end stud Download PDFInfo
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- CN218785530U CN218785530U CN202222538045.7U CN202222538045U CN218785530U CN 218785530 U CN218785530 U CN 218785530U CN 202222538045 U CN202222538045 U CN 202222538045U CN 218785530 U CN218785530 U CN 218785530U
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Abstract
A double-end stud quick dismounting device relates to the field of screw connection part dismounting tools, and comprises an inner cone nut, an outer cone sleeve and a plane nut matched with a movable screw part of a double-end stud in a screw connection mode; the inner taper hole of the inner taper nut is provided with inner taper threads, the outer taper wall of the outer taper sleeve is provided with outer taper threads matched with the inner taper threads in a screwing mode, the inner sleeve wall of the outer taper sleeve is provided with inner threads matched with the outer threads of the movable head screw part of the double-head screw pile, the outer taper sleeve is equally divided into a plurality of screw extrusion blocks along the radial direction of the outer taper sleeve, and a cutting seam is arranged between every two adjacent screw extrusion blocks; this dismounting device adopts two nut coincide to carry on the back tight mode, utilizes the vice locking of awl screw thread, realizes dismantling the function of interference stud, has improved dismouting efficiency to can used repeatedly, reduce cost.
Description
Technical Field
The utility model belongs to the technical field of spiro union part assembly and disassembly tools and specifically relates to a swift dismounting device of double-end stud is related to.
Background
The stud is a commonly used connecting piece for connecting and sealing covers of base bodies such as tank bodies, shells and the like, and is similar to a stud structure, and is characterized in that a screw rod part at one end of the stud can be inserted into a flange screw hole of the base body through interference threads, the screwing torque of an interference thread pair is generally up to 15-37 N.m, so that the stud is tightly inserted into the base body with high strength like a pile and is connected tightly, and the stud is exposed out of the screw rod part at the other end of the base body and can be movably connected with another flange to be assembled through a locking nut, so that the stud is convenient to disassemble and assemble;
the double-end stud structure has poor maintainability, the middle smooth rod part has shorter length because the base body is connected and sealed without a gap, and flat or hexagonal lower wrenches are avoided, so that the stud structure is inconvenient to disassemble if the defective stud needs to be replaced; the traditional process scheme adopts auxiliary materials such as process nuts close to the stud material, and after the auxiliary materials are connected with the stud into a whole in a welding mode, the aim of disassembling the double-head stud by pulling out the stud from the base body is achieved by means of overcoming the interference thread pair pretightening force at the other end through a spanner, but the traditional process scheme has obvious problems: auxiliary material waste such as auxiliary nuts is increased; welding operation with relatively independent field is required; the production period including purchasing auxiliary nuts and welding, assembling, disassembling and the like is long, and the cost is high.
Disclosure of Invention
In order to overcome not enough among the background art, the utility model discloses a swift dismounting device of double-end stud adopts two nut coincide to carry on the back tight mode, has improved dismouting efficiency to can used repeatedly, reduce cost.
In order to achieve the purpose, the utility model adopts the following technical proposal:
a quick double-end stud dismounting device comprises an inner cone nut, an outer cone sleeve and a plane nut matched with a movable screw rod part of a double-end stud in a threaded manner; the inner taper hole of the inner taper nut is provided with inner taper threads, the outer taper wall of the outer taper sleeve is provided with outer taper threads matched with the inner taper threads in a screwing mode, the inner sleeve wall of the outer taper sleeve is provided with inner threads matched with the outer threads of the movable head screw part of the double-head screw pile, the outer taper sleeve is equally divided into a plurality of screw blocks in a screwing mode along the radial direction of the outer taper sleeve, and a cutting seam is arranged between every two adjacent screw blocks in the screwing mode.
Further, the taper angle of the inner taper hole of the inner taper nut is set to 6 to 15 degrees.
Further, the taper angle of the inner taper hole of the inner taper nut is set to 12 degrees.
Furthermore, the number of the rotary extrusion screw blocks is three.
Further, the terminal surface of plane nut evenly encircles and is equipped with a plurality of screw thread through-holes, set the auxiliary screw in the screw thread through-hole, the big footpath terminal surface of outer taper sleeve is equipped with the spacing hole that corresponds the screw thread through-hole.
Further, the aperture of the limiting hole is larger than that of the threaded through hole.
Furthermore, the width of a cutting seam of the adjacent rotary extrusion screw blocks is 1-1.5 mm.
Furthermore, the inner cone nut and the plane nut are both of an outer hexagonal structure, and the outer hexagonal size of the plane nut is smaller than that of the inner cone nut.
Due to the adoption of the technical scheme, the utility model discloses following beneficial effect has:
the utility model discloses a quick dismounting device of double-end stud, adopted two nut coincide back of the body tight mode, utilize the interior taper nut of design and the outer taper sleeve that comprises a plurality of crowded spiral shell pieces soon to twist to cooperate, through plane nut coincide back of the body fastening fixed to connect into a whole with spare parts such as double-end stud and taper thread pair and plane nut, reach the ordinary screw thread one end of effectively holding the double-end stud tightly, overcome the function of the vice pretightning force of other end interference thread; to sum up, the utility model discloses swift convenient to the dismouting of double-end stud, and frock low in manufacturing cost, reusability is good, has very high spreading value.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention;
FIG. 2 is a schematic structural view of the flat nut;
FIG. 3 is a schematic structural view of the outer cone;
FIG. 4 is a schematic view of the construction of the internally tapered nut.
In the figure: 1. a flat nut; 101. a threaded through hole; 2. an outer taper sleeve; 201. spirally extruding a screw block; 202. a limiting hole; 3. an inner cone nut; 4. a double-ended stud; 5. and (5) auxiliary screws.
Detailed Description
In the following description, the technical solution of the present invention will be described with reference to the accompanying drawings in the embodiment of the present invention, it should be understood that, if there are the indicated positions or positional relationships such as "upper", "lower", "front", "rear", "left", "right", etc., it only corresponds to the drawings of the present invention, and for convenience of description, it is not intended to indicate or imply that the indicated device or element must have a specific position:
the first embodiment is as follows:
the double-end stud quick dismounting device combined with the attached drawings 1-4 comprises an inner cone nut 3, an outer cone sleeve 2 and a plane nut 1 which is in threaded connection and matched with a movable screw part of a double-end stud 4; according to the requirement, the inner cone nut 3 and the plane nut 1 are both in an outer hexagonal structure, and the outer hexagonal size of the plane nut 1 is smaller than that of the inner cone nut 3, so that the sleeve spanner can be screwed, assembled and disassembled conveniently;
the inner taper hole of the inner taper nut 3 is provided with inner taper threads, the processing of the non-standard taper threads is recommended to be processed by a numerical control lathe and a standard lathe tool according to the programmed set parameters, but the parameters of the inner taper threads and the parameters of the outer taper threads of the outer taper sleeve 2 are required to be the same, and the easy screwing-in is ensured; according to requirements, the cone angle of the inner cone hole of the inner cone nut 3 is set to be 6-15 degrees, preferably, the cone angle of the inner cone hole of the inner cone nut 3 is set to be 12 degrees, and the 12-degree cone angle is the optimal cone angle verified by multiple tests, so that the double-end stud is more effectively disassembled; the outer conical wall of the outer conical sleeve 2 is provided with outer conical threads matched with the inner conical threads in a screwing mode, the inner sleeve wall of the outer conical sleeve 2 is provided with inner threads matched with the outer threads of the movable screw part of the double-headed stud pile 4, and the movable screw part of the double-headed stud pile 4 is clamped correspondingly when the plurality of screwing and extruding screw blocks 201 are stressed to contract inwards; the outer taper sleeve 2 is equally divided into a plurality of screw extrusion blocks 201 along the radial direction, and a cutting seam is arranged between every two adjacent screw extrusion blocks 201, so that the plurality of screw extrusion blocks 201 of the outer taper sleeve 2 can be stressed and contracted to be close when being screwed into the inner taper nut 3; three rotary extrusion screw blocks 201 are arranged as required, so that the clamping force of the movable screw rod part of the double-head screw pile 4 is relatively balanced; in addition, the width of the cutting seam of the adjacent rotary extrusion screw block 201 is 1-1.5 mm.
The implementation of the quick double-end stud dismounting device of the utility model needs two stages, wherein the first stage is to pull out one end of the interference thread after locking one end of the common thread of the double-end stud 4; the second stage is to disassemble the connection between the disassembling device and the disassembled double-end stud 4;
in the first stage, as shown in figure 1, an outer taper sleeve 2 and a 12-degree taper thread pair of an inner taper nut 3 are firstly loosely assembled together, the internal thread of the outer taper sleeve 2 is screwed corresponding to the common thread of the movable screw part of a double-head stud 4, and then a plane nut 1 is rotated to be attached to the large-diameter end face of the outer taper sleeve 2, so that a double-nut overlapping mechanism is formed; then two universal wrenches are used for respectively clamping the outer hexagons of the plane nut 1 and the inner cone nut 3, tightening rotating forces in the positive direction and the negative direction are implemented, so that the internal threads of the three rotary extrusion screw blocks 201 lock the common threads of the disassembled double-head stud 4 and are tightly connected into a whole, and finally the universal wrenches are used for clamping the outer hexagons of the inner cone nut 3 to rotate, so that the double-head stud 4 can be disassembled by loosening the interference thread pair;
in the second stage, one end of the interference thread of the disassembled double-end stud 4 needs to be clamped by a vice for fixing, the outer hexagonal surfaces of the plane nut 1 and the inner cone nut 3 are respectively clamped by two universal wrenches, the loosening and rotating acting forces in the positive direction and the negative direction are implemented, and the plane nut 1, the inner cone nut 3 and the double-end stud 4 are loosened one by one.
The second embodiment:
the difference from the first embodiment lies in that the end surface of the plane nut 1 is uniformly provided with a plurality of threaded through holes 101 in a surrounding manner, auxiliary screws 5 are arranged in the threaded through holes, and the large-diameter end surface of the outer taper sleeve 2 is provided with a limiting hole 202 corresponding to the threaded through hole 101; according to the requirement, the aperture of the limiting hole 202 is larger than that of the threaded through hole 101, so that the auxiliary screw 5 can be conveniently inserted into the limiting hole 202; the reason for this is that in the second stage of the disassembly, it may happen that the flat nut 1 is loosened and the inner cone nut 3 is not loosened, and the auxiliary screw 5 can be mounted to trip the inner cone nut 3 to be relatively fixed and then be screwed and loosened.
The details of the present invention not described in detail are prior art, and it will be apparent to those skilled in the art that the present invention is not limited to the details of the foregoing exemplary embodiments, and that the present invention 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 invention 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, and any reference signs in the claims are not intended to be construed as limiting the scope of the claims.
Claims (8)
1. The utility model provides a swift dismounting device of double-end stud, characterized by: comprises an inner cone nut (3), an outer cone sleeve (2) and a plane nut (1) which is in threaded fit with the movable head screw part of the double-head stud (4); the inner taper hole of interior taper nut (3) is equipped with interior taper screw, the outer conical wall of outer taper sleeve (2) is equipped with the outer taper screw of twisting the adaptation with interior taper screw, the endotheca wall of outer taper sleeve (2) is equipped with the internal thread of adaptation double-end stud (4) loose end screw portion external screw thread, outer taper sleeve (2) are along its radial equidistribution for a plurality of crowded spiral shell pieces of revolving (201), and adjacent crowded spiral shell piece of revolving (201) between be equipped with the joint-cutting.
2. The quick double-ended stud removal device of claim 1, wherein: the cone angle of the inner cone hole of the inner cone nut (3) is set to be 6-15 degrees.
3. The quick double-ended stud dismounting device according to claim 2, characterized in that: the cone angle of the inner cone hole of the inner cone nut (3) is set to be 12 degrees.
4. The quick double-ended stud removal device of claim 1, wherein: the number of the rotary extrusion screw blocks (201) is three.
5. The quick double-ended stud removal device of claim 1, wherein: the end face of the plane nut (1) is uniformly provided with a plurality of threaded through holes (101) in a surrounding mode, auxiliary screws (5) are arranged in the threaded through holes in a matching mode, and the large-diameter end face of the outer taper sleeve (2) is provided with limiting holes (202) corresponding to the threaded through holes (101).
6. The quick double-ended stud removal device of claim 5, wherein: the aperture of the limiting hole (202) is larger than that of the threaded through hole (101).
7. The quick double-ended stud removal device of claim 1, wherein: the width of a cutting seam of the adjacent rotary extrusion screw block (201) is 1-1.5 mm.
8. The quick double-ended stud dismounting device according to claim 1, characterized in that: the inner cone nut (3) and the plane nut (1) are both of an outer hexagonal structure, and the outer hexagonal size of the plane nut (1) is smaller than that of the inner cone nut (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222538045.7U CN218785530U (en) | 2022-09-23 | 2022-09-23 | Quick dismounting device of double-end stud |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222538045.7U CN218785530U (en) | 2022-09-23 | 2022-09-23 | Quick dismounting device of double-end stud |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218785530U true CN218785530U (en) | 2023-04-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222538045.7U Active CN218785530U (en) | 2022-09-23 | 2022-09-23 | Quick dismounting device of double-end stud |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218785530U (en) |
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2022
- 2022-09-23 CN CN202222538045.7U patent/CN218785530U/en active Active
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