CN212123063U - Stud fastening device - Google Patents
Stud fastening device Download PDFInfo
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- CN212123063U CN212123063U CN202020564011.3U CN202020564011U CN212123063U CN 212123063 U CN212123063 U CN 212123063U CN 202020564011 U CN202020564011 U CN 202020564011U CN 212123063 U CN212123063 U CN 212123063U
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- stud
- stud bolt
- sleeve
- fastening device
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Abstract
The utility model relates to a stud fastener. The stud bolt fastening device comprises a transmission rod and a sleeve, wherein the transmission rod is detachably connected with the sleeve; the transmission rod comprises a clamping part and a connecting part, and the clamping part is used for clamping a force application tool; the upper end of the sleeve is provided with a first opening, and the first opening is detachably connected with the connecting part of the transmission rod; the lower extreme of telescopic is equipped with the second opening, the second opening is used for dismantling with stud's one end and is connected. The stud bolt fastening device is convenient and simple to operate when the stud bolt is assembled, and the stud bolt cannot be damaged; the device realizes flexible control of the pre-tightening torque force of the stud bolt, ensures that the pre-tightening torque reaches the torque value requirement specified by the assembly process, realizes fastening and pre-tightening of the stud bolt on mechanical equipment, and ensures the assembly quality.
Description
Technical Field
The utility model relates to a stud fastener.
Background
The stud bolt is also called a stud screw or a stud bolt, is a part with threads at two ends and a screw rod in the middle, is mainly used for fixed connection in mechanical equipment, and requires that the threaded connection at two ends of the stud bolt must be fastened and anti-loose when in use.
The double-headed bolts are needed to be used in a plurality of structures in a forging press product, for example, the connection between a connecting rod and a connecting rod cap in the forging press is realized through the double-headed bolts, the connection between threads at two ends of the double-headed bolts and the connecting rod cap needs to be firm and locked in the structure, otherwise, the conditions of equipment damage and production shutdown caused by the loosening of the threads are easy to occur under the condition that the press repeatedly impacts the working condition. In the prior art, universal tools such as pipe tongs are generally used for installing the stud bolts, and in the installation process, the universal tools such as the pipe tongs have the problems that the operation is inconvenient, the stud bolts are easily damaged, the process requirements of assembly torque cannot be met due to the fact that the locking torque cannot be effectively controlled, and the like.
SUMMERY OF THE UTILITY MODEL
The utility model provides a solve above-mentioned technical problem, provide a stud fastener, this stud fastener easy operation can not harm stud, can realize carrying out nimble control to stud's pretension torsional forces, guarantees that pretension moment reaches the moment value requirement of assembly process regulation, has guaranteed the assembly quality.
The utility model discloses a realize through following technical scheme:
a stud bolt fastening device comprises a transmission rod and a sleeve, wherein the transmission rod is detachably connected with the sleeve;
the transmission rod comprises a clamping part and a connecting part, and the clamping part is used for clamping a force application tool;
the upper end of the sleeve is provided with a first opening, and the first opening is detachably connected with the connecting part of the transmission rod; the lower extreme of telescopic is equipped with the second opening, the second opening is used for dismantling with stud's one end and is connected.
Preferably, the transmission rod further comprises an abutting part arranged at the tail end of the connecting part, and the tail end of the abutting part is used for abutting against the end face of the stud bolt.
Preferably, the ends of the abutment are flat.
Preferably, a cavity is arranged in the sleeve, the cavity is arranged between the first opening and the second opening, and the first opening, the cavity and the second opening are communicated.
Preferably, the diameter of the second opening is larger than that of the first opening, and the diameter of the cavity is larger than that of the first opening.
Preferably, the connecting portion is threadedly connected to the first opening.
Preferably, the connecting portion is engaged with the first opening by a large-pitch thread.
Preferably, the second opening is threadedly engaged with one end of the stud bolt.
Preferably, the cross section of the connecting part is a regular polygon.
Preferably, the cross section of the connecting part is regular hexagon.
The utility model has the advantages that:
the stud bolt fastening device is convenient and simple to operate when the stud bolt is assembled, and the stud bolt cannot be damaged; the pre-tightening torque force of the stud bolt is flexibly controlled, the pre-tightening torque is guaranteed to meet the torque value requirement specified by the assembly process, the stud bolt is fastened and pre-tightened on mechanical equipment, and the assembly quality is guaranteed; the stud bolt fastening device is simple to manufacture, good in universality and capable of being used for fastening and pre-tightening stud bolts of various specifications in mechanical equipment.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the connecting rod of FIG. 1;
FIG. 3 is a schematic top view of the structure of FIG. 1;
fig. 4 is a schematic view of the sleeve of fig. 1.
In the figure, 1, a transmission rod; 2. a sleeve; 101. a clamping portion; 102. a connecting portion; 103. an abutting portion; 201. a first opening; 202. a second opening; 203. a cavity.
Detailed Description
In order to clearly illustrate the technical features of the present invention, the present invention is explained in detail by the following embodiments in combination with the accompanying drawings.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper end", "lower end", "end", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
As shown in fig. 1 to 4, the present invention exemplifies a stud bolt fastening device, which includes a transmission rod 1 and a sleeve 2, wherein the transmission rod 1 is detachably connected to the sleeve 2;
the transmission rod 1 comprises a clamping part 101 and a connecting part 102, wherein the clamping part 101 is clamped by a force application tool;
the upper end of the sleeve 2 is provided with a first opening 201, and the first opening 201 is detachably connected with the connecting part of the transmission rod 1; the lower end of the sleeve 2 is provided with a second opening 202, and the second opening 202 is used for being detachably connected with one end of the stud bolt.
Compare with force application tools such as direct use breakout tongs, the utility model discloses a stud fastener of example sets up transfer line and sleeve, the sleeve both has been connected with stud's one end, still be connected with the dowel steel, the transfer line is used for bearing force application tool's application of force and gives the sleeve with power transmission, the sleeve further gives stud with power transmission, both realized the assembly to stud, still realized the protection to stud, and because the transfer line, link into an organic whole between sleeve and the stud, the other end that stud needs the assembly can effectively be transmitted to the power of applying on the dowel steel, can realize carrying out nimble control to stud's pretension moment of torsion, guarantee that pretension moment reaches the moment value requirement of assembly process regulation, assembly quality has been guaranteed.
The transmission rod 1 further comprises an abutting part 103 arranged at the tail end of the connecting part 102, and the tail end of the abutting part 103 is used for abutting against the end face of the stud bolt.
The abutting part tightly abuts against the stud bolt, the position of the stud bolt in the sleeve is limited, the stud bolt, the sleeve and the connecting rod can form a tight whole, the tightening force is easier to control when a force application tool is used, and the torque moment is easier to reach the torque moment range specified by the assembly process.
The end of the abutment 103 is flat.
The position that butt portion and stud terminal surface support tightly sets to flat, and the area of contact of butt portion and stud's tip is big, and the connecting rod is big to the pressure of stud terminal surface, can not make the other end that the stud needs the installation too tight with the cooperation of equipment, better control to the torque moment of whole stud.
A cavity 203 is arranged in the sleeve 2, the cavity 203 is arranged between the first opening 201 and the second opening 202, and the first opening 201, the cavity 203 and the second opening 202 are communicated with each other.
The cavity can reserve a certain space for the matching of the abutting part and the stud bolt, so that the matching of the stud bolt and the sleeve can meet the requirement of tightness and cannot be over-tightened, and a force application tool is favorable for applying force to the stud bolt; it is advantageous to process the first opening and the second opening.
The diameter of the second opening 202 is larger than the diameter of the first opening 201, and the diameter of the cavity 203 is larger than the diameter of the first opening 201.
The connecting portion 102 is screwed with the first opening 201.
In this embodiment, the connection portion is provided with an external thread, and the first opening is provided with an internal thread.
The connection portion 102 is engaged with the first opening 201 by a large-pitch screw.
The coarse pitch screw-thread fit can satisfy the requirement of screwing up when connecting portion and first opening together when needs, when needs part connecting portion and first opening, because the fit clearance is looser between the two, and the application of force instrument is rotated in the opposite direction, can relax between the two throw off.
The second opening 202 is threadedly engaged with one end of the stud.
And an internal thread is arranged in the second opening and is in threaded fit with the external thread at one end of the stud bolt. For later-period disassembly, the second opening can be internally provided with a large-pitch thread.
The cross section of the connecting portion 102 is a regular polygon.
The cross section of the connecting portion 102 is a regular hexagon.
The cross-sectional shape of the connecting portion may be set according to the force application tool used.
It should be noted that, because the stud bolts have different specifications and sizes, in order to enable the stud bolt fastening device to be better matched with the stud bolts with different specifications and sizes, a plurality of sleeves with different specifications and sizes can be manufactured, that is, the diameters of the second openings of different sleeves are manufactured into different sizes to be used according to the requirements of the stud bolts; the size of the connecting part can be designed according to the size of the second opening, and a plurality of second openings with similar specifications can use the connecting part with the same size; designing the size of the first opening and the size of the connecting part; the size of clamping part designs according to stud's size, designs the preparation according to the general specification size of national standard, uses with standard application of force instrument (like torque wrench) during the use, contains the clamping part of the same specification of second open-ended sleeve of similar specification can use.
When in use, one end of the stud bolt is implanted into equipment and is screwed down manually; selecting a proper sleeve 2 and a proper dowel bar 1 according to the size of the stud, and connecting the connecting part 102 of the dowel bar 1 with the first opening 201 of the sleeve 2 to form a stud fastening device; the second opening 202 of the sleeve 2 and the other end of the stud bolt are connected together by screw threads; selecting a torque wrench with a proper size, enabling the torque wrench to clamp the clamping part 101, screwing the torque wrench, enabling the abutting part 103 to prop against the end face of the stud bolt so as to enable the transmission rod 1, the sleeve 2 and the stud bolt to be tightly integrated, continuing to screw the torque wrench, continuously implanting one end of the stud bolt implanting equipment into the equipment under the driving of the torque wrench, and controlling the force applied to the stud bolt fastening device by the torque wrench until the torque reaches a torque range specified by an assembly process; after the one end assembly of stud implantation equipment is accomplished, the torque wrench is rotated in the opposite direction, because be the coarse pitch screw-thread fit between first opening 201 and the connecting portion 102, first opening 201 just can easily throw off with connecting portion 102 this moment, with the transfer line 1 with sleeve 2 manual take apart can, because also be the coarse pitch screw-thread fit between second opening 202 and the stud, can separate stud and sleeve 2 through manual twisting.
The above-mentioned specific embodiments can not be regarded as the restriction to the scope of protection of the utility model, to technical personnel in this technical field, it is right the utility model discloses any replacement improvement or transform that embodiment made all fall within the scope of protection of the utility model.
The parts of the present invention not described in detail are the known techniques of those skilled in the art.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The stud fastening device is characterized by comprising a transmission rod and a sleeve, wherein the transmission rod is detachably connected with the sleeve;
the transmission rod comprises a clamping part and a connecting part, and the clamping part is used for clamping a force application tool;
the upper end of the sleeve is provided with a first opening, and the first opening is detachably connected with the connecting part of the transmission rod; the lower extreme of telescopic is equipped with the second opening, the second opening is used for dismantling with stud's one end and is connected.
2. The stud bolt-fastening device according to claim 1, wherein the transmission lever further includes an abutting portion provided at a distal end of the connecting portion, the distal end of the abutting portion being configured to abut against an end surface of the stud bolt.
3. The stud bolt fastening device of claim 2, wherein the ends of the abutments are flat.
4. The stud fastening device of claim 1, wherein a cavity is provided in the sleeve, the cavity being disposed between the first opening and the second opening, the first opening, the cavity, and the second opening being in communication.
5. The stud bolt fastening device of claim 4, wherein the diameter of the second opening is greater than the diameter of the first opening, and the diameter of the cavity is greater than the diameter of the first opening.
6. The stud bolt fastening device according to claim 1, wherein the connecting portion is threadedly connected to the first opening.
7. The stud bolt fastening device of claim 6, wherein the connecting portion is threadedly engaged with the first opening by a large pitch.
8. The stud bolt-fastening device according to claim 1, wherein the second opening is threadedly engaged with one end of the stud bolt.
9. The stud bolt-fastening apparatus according to claim 1, wherein the cross-section of the connecting portion is in the shape of a regular polygon.
10. The stud bolt-fastening apparatus according to claim 8, wherein the connecting portion has a cross-section in the shape of a regular hexagon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020564011.3U CN212123063U (en) | 2020-04-15 | 2020-04-15 | Stud fastening device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020564011.3U CN212123063U (en) | 2020-04-15 | 2020-04-15 | Stud fastening device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212123063U true CN212123063U (en) | 2020-12-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020564011.3U Active CN212123063U (en) | 2020-04-15 | 2020-04-15 | Stud fastening device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212123063U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112792786A (en) * | 2021-01-28 | 2021-05-14 | 东方电气风电有限公司 | Fixed-length quick screwing device and method for stud for wind power pitch bearing |
-
2020
- 2020-04-15 CN CN202020564011.3U patent/CN212123063U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112792786A (en) * | 2021-01-28 | 2021-05-14 | 东方电气风电有限公司 | Fixed-length quick screwing device and method for stud for wind power pitch bearing |
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