CN210397392U - Easy split type torque nut - Google Patents
Easy split type torque nut Download PDFInfo
- Publication number
- CN210397392U CN210397392U CN201721285234.0U CN201721285234U CN210397392U CN 210397392 U CN210397392 U CN 210397392U CN 201721285234 U CN201721285234 U CN 201721285234U CN 210397392 U CN210397392 U CN 210397392U
- Authority
- CN
- China
- Prior art keywords
- nut
- split
- torque
- splitter
- tool bit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000003068 static Effects 0.000 claims abstract description 14
- 238000001125 extrusion Methods 0.000 claims abstract description 4
- 238000009434 installation Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 238000007689 inspection Methods 0.000 description 4
- 238000010008 shearing Methods 0.000 description 4
- 229910000975 Carbon steel Inorganic materials 0.000 description 2
- 239000010962 carbon steel Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminum Chemical compound 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[Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model provides an easy split formula torque nut for connect two binding post, include: an outer nut (1); the outer nut (1) is provided with an inner nut (2) which is arranged in the outer nut (1) and is connected with the outer nut (1) through a plurality of connecting columns (3), the central axis of the inner nut (2) is coaxial with the central axis of the outer nut (1), and two split grooves (4) are formed in the outer wall (21) of the nut (2) along the longitudinal direction of the inner nut (2); when the split-type torque nut is screwed to a rated torque, the outer nut (1) is separated from the inner nut (2); the splitting groove (4) is broken when being subjected to the extrusion force of the nut splitter, so that the inner nut (2) is split. The utility model does not need to adopt a torque wrench to recheck one by one, thereby improving the labor productivity; the split groove is formed in the outer wall of the inner nut, positioning support is provided for the static tool bit and the moving tool bit of the nut splitter, and the static tool bit and the moving tool bit are prevented from slipping on the outer wall of the inner nut.
Description
Technical Field
The utility model relates to a high voltage power equipment electricity connecting tool technical field especially relates to an easily split formula torque nut.
Background
Nuts are parts which are screwed together with bolts or screws for fastening, and generally, in order to resist mechanical force, the nuts must be tightened with a certain fastening torque.
The existing nut mainly depends on a torque wrench to determine the tightening torque, when an inspector checks whether the nut is tightened, the torque wrench is needed to detect the nut one by one, and the installation position of part of the nut is difficult to reach, for example, the installation position of a fastening nut used on a wiring terminal of a power transmission line is generally more than one hundred meters away from the ground, the inspector checks the fastening condition of the nut and consumes larger physical force, and the labor efficiency is very low.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that an easily split formula torque nut is provided to need not to adopt the torque spanner to recheck one by one when the inspection nut fastening situation, improve productivity, and easily dismantle.
In order to solve the technical problem, the utility model provides an easy split formula torque nut for connect two binding post, include:
an outer nut;
the inner nut is arranged in the outer nut and is connected with the outer nut through a plurality of connecting columns, the central axis of the inner nut is coaxial with that of the outer nut, and two split grooves are formed in the outer wall of the inner nut along the longitudinal direction of the inner nut;
when the split-type torque nut is screwed to a rated torque, the outer nut is separated from the inner nut;
the splitting groove is broken when being subjected to the extrusion force of the nut splitter, so that the inner nut is split.
The outer nut is an outer hexagonal nut, and the cross section of the outer nut is provided with a regular hexagonal outer edge and a circular inner edge.
The inner nut is a hollow cylinder, and the circle formed by the cross section of the inner nut and the circular inner edge of the outer nut are concentric circles.
The two split grooves are in the same plane in the longitudinal direction, and the intersection line of the plane and the cross section of the inner nut is the diameter of the cross section.
When the split-type torque nut is clamped by the nut splitter, the two splitting grooves are respectively aligned with and abut against the static tool bit and the movable tool bit of the nut splitter.
The connecting column is longitudinally arranged along the outer wall of the inner nut and protrudes out of the outer wall.
Wherein, when fastening the split-type torque nut, the connecting column is a stress concentration point.
Wherein, the spliced pole totally 3, evenly distributed is in on the outer wall.
The embodiment of the utility model provides a beneficial effect lies in:
firstly, the outer nut and the inner nut are connected through the connecting piece, when the coaxial torque nut is screwed to a rated torque, the connecting column is affected by a shearing force and is disconnected from the middle, the outer nut and the inner nut are separated, only the residual inner nut is connected with the screw rod to play a fastening role, and all the screwed off coaxial torque nuts of the outer nut can reach the fastening torque. When inspection personnel need to inspect the fastening state of the coaxial torque nut, the outer nut can be remotely observed by adopting observation tools such as a telescope and an unmanned aerial vehicle to judge whether to fall off or not, and the torque wrench does not need to be adopted to recheck one by one, so that the labor productivity is improved.
Secondly, the split groove is formed in the outer wall of the inner nut, when the inner nut is disassembled through the nut splitter, positioning support is provided for the static tool bit and the moving tool bit of the nut splitter, and the static tool bit and the moving tool bit are prevented from slipping on the outer wall of the inner nut. In addition, the anti-theft device can play a certain anti-theft role.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of an easy-split torque nut according to an embodiment of the present invention.
Fig. 2 is an installation schematic diagram of an easy-split torque nut in an incompletely fastened state according to an embodiment of the present invention.
Fig. 3 is an installation schematic diagram of an easy-split torque nut in a completely fastened state according to an embodiment of the present invention.
Fig. 4 is an enlarged view of a portion of the split torque nut installation of fig. 3.
Fig. 5 is an operation diagram illustrating the detachment of the split-type torque nut according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments refers to the accompanying drawings, which are included to illustrate specific embodiments in which the invention may be practiced.
Referring to fig. 1, the present invention provides an easy-split torque nut for connecting two connection terminals, including:
an outer nut 1;
an inner nut 2 which is arranged in the outer nut 1 and is connected with the outer nut 1 through a plurality of connecting columns 3, the central axis of the inner nut 2 is coaxial with the central axis of the outer nut 1, and two split grooves 4 are arranged on the outer wall 21 of the inner nut 2 along the longitudinal direction of the inner nut 2;
when the split-type torque nut is screwed to a rated torque, the outer nut 1 is separated from the inner nut 2;
the split groove 4 is broken when being pressed by a nut splitter to split the inner nut 2.
Specifically, the outer nut 1 is an outer hexagonal nut having a cross section with a regular hexagonal outer edge 11 and a circular inner edge 12, and the inner nut 2 is a hollow cylinder including an outer wall 21 and an inner wall 22. The outer wall 21 of the inner nut 2 is connected with the circular inner edge 12 of the outer nut 1 through a plurality of connecting columns 3, so that the outer nut 1 and the inner nut 2 are integrated and can be fastened by a common tool, such as a hexagonal open-end wrench. The cross section of the inner nut 2 is circular and is concentric with the circular inner edge 12 of the outer nut 1.
The material of the outer nut 1 and the inner nut 2 is No. 45 carbon steel, and a normal lathe is adopted to machine the regular hexagon outer edge 11 of the outer nut 1 and the internal thread 5 on the inner wall 22 of the inner nut 2. The connecting column 3 is machined by a linear cutting machine, and the connecting column 3 is a stress concentration point when a coaxial torque nut is fastened. The connecting columns 3 of the present embodiment are 3 in total and are evenly distributed on the outer wall 21 of the inner nut 2.
Referring to fig. 2 and fig. 3, fig. 2 is an installation schematic diagram of the easy-to-split torque nut of the present embodiment in an incompletely fastened state, and fig. 3 is an installation schematic diagram of the easy-to-split torque nut of the present embodiment in a completely fastened state. The adjacent ends of two connecting terminals 61 respectively connected with the steel-cored aluminum stranded wires are overlapped, a screw 62 penetrates through the overlapped part of the connecting terminals 61, and the coaxial inner square column type torque nut of the embodiment is sleeved in the screw 62. As an example, the screw 62 is an M18 metric coarse-pitch outer hex screw. A gasket 63 and a spring ring are further arranged between the split torque nut and the wiring terminal 61.
And then the easy-to-split torque nut is screwed, when the easy-to-split torque nut is screwed to a rated torque, the connecting column 3 is influenced by a shearing force and is disconnected from the middle, the outer nut 1 is separated from the inner nut 2, and only the residual inner nut 2 is connected with the screw 62 to play a role in fastening. Taking the minimum section of the connecting column 3 as 42 square millimeters as an example, when the coaxial inner square column type torque nut is fastened, the connecting column 3 is a stress concentration point, the allowable shearing force 178Mpa is used according to No. 45 carbon steel, when the outer nut 1 is screwed to be separated, the screwing torque exceeds 100Nm, and according to general experience, the screwing torque reaches the use requirement. This ensures that all the coaxial torque nuts with the external nut 1 screwed off reach the tightening torque. When the inspection personnel need to inspect the fastening state of the split-type torque nut, the outer nut 1 can be remotely observed by adopting observation tools such as a telescope and an unmanned aerial vehicle to judge whether to fall off or not, and the torque wrench does not need to be adopted to check one by one, so that the labor productivity is improved.
Referring to fig. 4, the split groove 4 is longitudinally arranged along the outer wall 21 of the inner nut 2 and is recessed from the outer wall 21 to the inner wall 22. The connecting column 3 is also arranged longitudinally along the outer wall 21 of the inner nut 2 and protrudes from the outer wall 21. In this embodiment, the two split grooves 4 are in the same plane in the longitudinal direction, and the intersection line of the plane and the cross section of the inner nut 2 is the diameter of the cross section (i.e. the diameter of the cross section of the outer wall 21).
Referring again to fig. 5, if it is desired to disassemble the inner nut 2, a nut splitter 7 may be used. The nut splitter 7 is a commonly used hydraulic tool, and comprises a static cutter head 71 and a moving cutter head 72, wherein the moving cutter head 72 is driven by hydraulic pressure, and the moving cutter head 72 and the static cutter head 71 clamp the nut and apply extrusion force to the nut, so that the nut is split. In this embodiment, the two split grooves 4 are symmetrically arranged on the outer wall 21 of the inner nut 2 and located at two ends of the cross section diameter of the inner nut 2, and the central axes of the static cutter head 71 and the movable cutter head 72 of the nut splitter 7 are coaxial, so that when the nut splitter 7 clamps the inner nut 2, the static cutter head 71 and the movable cutter head 72 just align to and abut against the two split grooves 4 respectively, and hydraulic pressure is applied to the nut splitter 7, so that the inner nut 2 can be split easily. The split grooves 4 can provide positioning support for the static cutter head 71 and the movable cutter head 72, and prevent the static cutter head 71 and the movable cutter head 72 from slipping on the outer wall 21 of the inner nut 2. In addition, because the weight and the price of the nut splitter 7 are far higher than those of common hand tools, and common thieves rarely use the nut splitter, the split-type torque nut of the embodiment can play a certain anti-theft role while considering the easy-disassembly performance.
As can be seen from the above description, the embodiment of the present invention has the following advantages:
firstly, the outer nut and the inner nut are connected through the connecting piece, when the coaxial torque nut is screwed to a rated torque, the connecting column is affected by a shearing force and is disconnected from the middle, the outer nut and the inner nut are separated, only the residual inner nut is connected with the screw rod to play a fastening role, and all the screwed off coaxial torque nuts of the outer nut can reach the fastening torque. When inspection personnel need to inspect the fastening state of the coaxial torque nut, the outer nut can be remotely observed by adopting observation tools such as a telescope and an unmanned aerial vehicle to judge whether to fall off or not, and the torque wrench does not need to be adopted to recheck one by one, so that the labor productivity is improved.
Secondly, the split groove is formed in the outer wall of the inner nut, when the inner nut is disassembled through the nut splitter, positioning support is provided for the static tool bit and the moving tool bit of the nut splitter, and the static tool bit and the moving tool bit are prevented from slipping on the outer wall of the inner nut. In addition, the anti-theft device can play a certain anti-theft role.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, which is defined by the appended claims.
Claims (7)
1. The utility model provides an easy split formula torque nut for connect two binding post, its characterized in that includes:
an outer nut (1);
the inner nut (2) is arranged in the outer nut (1) and is connected with the outer nut (1) through a plurality of connecting columns (3), the central axis of the inner nut (2) is coaxial with the central axis of the outer nut (1), two split grooves (4) are formed in the outer wall (21) of the inner nut (2) along the longitudinal direction of the inner nut (2), the two split grooves (4) are in the same plane in the longitudinal direction, and the intersection line of the plane and the cross section of the inner nut (2) is the diameter of the cross section;
when the split-type torque nut is screwed to a rated torque, the outer nut (1) is separated from the inner nut (2);
the splitting groove (4) is broken when being subjected to the extrusion force of the nut splitter, so that the inner nut (2) is split.
2. Split-type torque nut according to claim 1, wherein the outer nut (1) is an outer hexagonal nut having a cross-section with a regular hexagonal outer edge (11) and a circular inner edge (12).
3. Split-type torque nut according to claim 2, wherein the inner nut (2) is a hollow cylinder with a circular cross-section concentric with the circular inner edge (12) of the outer nut (1).
4. The split-able torque nut as claimed in claim 1, wherein the two split grooves (4) are aligned with and pressed against the static and dynamic tool bits of the nut splitter, respectively, when the split-able torque nut is clamped by the nut splitter.
5. Split-type torque nut according to claim 1, characterized in that the connecting stud (3) is arranged longitudinally along the outer wall (21) of the inner nut (2) and protrudes beyond the outer wall (21).
6. The split torque nut of claim 5, wherein the connecting column is a stress concentration point when the split torque nut is tightened.
7. Split-ready torque nut according to claim 6, characterized in that the connecting studs (3) are 3 in total, evenly distributed on the outer wall (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721285234.0U CN210397392U (en) | 2017-10-06 | 2017-10-06 | Easy split type torque nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721285234.0U CN210397392U (en) | 2017-10-06 | 2017-10-06 | Easy split type torque nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210397392U true CN210397392U (en) | 2020-04-24 |
Family
ID=70335863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721285234.0U Active CN210397392U (en) | 2017-10-06 | 2017-10-06 | Easy split type torque nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210397392U (en) |
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2017
- 2017-10-06 CN CN201721285234.0U patent/CN210397392U/en active Active
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