CN214110208U - Hydraulic bolt with self-positioning function - Google Patents
Hydraulic bolt with self-positioning function Download PDFInfo
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- CN214110208U CN214110208U CN202023139019.4U CN202023139019U CN214110208U CN 214110208 U CN214110208 U CN 214110208U CN 202023139019 U CN202023139019 U CN 202023139019U CN 214110208 U CN214110208 U CN 214110208U
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- screw rod
- taper
- hydraulic bolt
- taper sleeve
- sleeve
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Abstract
The utility model discloses a hydraulic bolt with self-positioning function, which comprises two flanges, a screw rod, a taper sleeve and two locking nuts, wherein the two flanges are correspondingly provided with connecting holes, two ends of the screw rod are provided with threads, the middle excircle part of the screw rod is provided with a certain taper and the surface of the screw rod is provided with a spiral groove; and a screw hole communicated with the spiral groove is formed in one end of the screw rod, the taper sleeve is provided with an inner taper hole with the same taper as the outer surface of the screw rod, the screw rod penetrates through the taper sleeve, a limiting part used for limiting the installation position of the taper sleeve is arranged at one end of the taper sleeve, the screw rod and the taper sleeve penetrate through the two connecting holes after being assembled, and the two locking nuts are locked at the two ends of the screw rod. Above-mentioned hydraulic bolt with from positioning function need not to be equipped with the installation position sleeve at the dismouting in-process, the effectual dismouting process of simplifying hydraulic bolt. Not only the structure is simple, but also the design is ingenious; and the hydraulic bolt can be assembled and disassembled really to achieve efficient, quick and convenient use.
Description
Technical Field
The utility model relates to a hydraulic bolt especially relates to a hydraulic bolt with from positioning function.
Background
At present, most of hydraulic bolts for connecting shafting flanges comprise a screw rod, a taper sleeve and a nut. The assembling process comprises the following steps: firstly, the outer conical surface of a screw rod and the inner conical surface of a conical sleeve are the same, the screw rod and the conical sleeve are assembled and then are arranged in a flange hole, then an installation positioning sleeve and a hydraulic stretcher are arranged on a thread at one end of the screw rod, the expansion pressure is reached according to the design requirement, and the screw rod moves in the conical sleeve and the conical sleeve expands through the axial tension of the hydraulic stretcher, so that the gap between the conical sleeve and the flange hole is eliminated, and a certain magnitude of interference can be reached; and finally, locking nuts at two ends by axial tension of the hydraulic stretcher until the pretightening force required by the design is achieved, so that the connection of the end faces of the two flanges is realized, and the torque is transmitted by using the friction force and the pretightening force.
Obviously, the installation positioning sleeve and the disassembly positioning sleeve are generally required to be equipped in the installation process of the hydraulic bolt at present, and particularly, the installation positioning sleeve is required to be equipped for installation in the installation process, so that the assembly and disassembly process is correspondingly increased in the installation and disassembly process, and the efficient, quick and convenient assembly and disassembly use cannot be realized under the condition of heavy and urgent tasks.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a hydraulic bolt with from positioning function to there is the inconvenient problem of dismouting in the hydraulic bolt among the solution prior art.
To achieve the purpose, the utility model adopts the following technical proposal:
a hydraulic bolt with self-locating function, comprising:
a first flange, which is provided with a first connecting hole,
a second flange having a second connection hole corresponding to the first connection hole,
the screw rod is provided with threads at two ends, the middle excircle part of the screw rod is provided with a certain taper, and the surface of the screw rod is provided with a spiral groove; and one end of the screw rod is provided with a screw hole communicated with the spiral groove,
the taper sleeve is provided with an inner taper hole with the same taper as the outer surface of the screw rod, the screw rod penetrates through the taper sleeve, one end of the taper sleeve is provided with a limiting component used for limiting the installation position of the taper sleeve,
and the screw rod and the taper sleeve penetrate through the first connecting hole and the second connecting hole after being assembled, and the two locking nuts are locked at two ends of the screw rod.
As a further improvement of the scheme, the limiting part is a limiting step arranged at one end of the taper sleeve, and a groove is formed in the inner side of one of the locking nuts by matching with the limiting step.
As a further improvement of the scheme, the screw hole is formed in one end face of the screw rod.
As a further improvement of the scheme, a plurality of jacks convenient to lock are formed in the outer wall of the nut.
As a further improvement of the scheme, an oil duct is arranged in the screw rod, one end of the oil duct is communicated with the spiral groove, and the other end of the oil duct is communicated with the screw hole.
The beneficial effects of the utility model are that, compare with prior art can carry out self-align after the taper sleeve assembly of the hydraulic bolt who has self-align function, so at hydraulic bolt's dismouting in-process, need not to be equipped with the installation position sleeve, the effectual installation dismantlement process of simplifying hydraulic bolt. Not only the structure is simple, but also the design is ingenious; moreover, the hydraulic bolt can be assembled and disassembled in a real way to achieve efficient, rapid and convenient use, and the use cost of the hydraulic bolt is reduced to a certain extent.
Drawings
Fig. 1 is a schematic structural diagram of a hydraulic bolt with a self-positioning function according to embodiment 1 of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
fig. 3 is an assembly schematic diagram of a hydraulic bolt with a self-positioning function according to embodiment 1 of the present invention.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete. It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1 to 3, in the present embodiment, a hydraulic bolt with a self-positioning function includes a first connecting shaft flange 1, a second connecting shaft flange 2, a screw rod 3, a taper sleeve 4 and two nuts 5, wherein the first connecting shaft flange 1 and the second connecting shaft flange 2 are correspondingly provided with connecting holes, and two ends of the screw rod 3 are provided with threads; the middle excircle part has certain conicity and the surface is provided with a spiral groove 6; a screw hole 7 is formed in one end face of the screw rod 3, an oil duct 8 is arranged in the screw rod 3, one end of the oil duct 8 is communicated with the spiral groove 6, the other end of the oil duct is communicated with the screw hole 7, and the excircle of the taper sleeve 4 is cylindrical; the inner hole is an inner taper hole which is matched with the screw rod 3 and has a certain taper, one end of the taper sleeve 4 is provided with a limit step 9 for limiting the installation position of the taper sleeve 4, and the outer circles of the two nuts 5 are provided with insertion holes 10 which are uniformly distributed and equally distributed; the inner hole is a threaded hole which is matched with the thread on the screw rod 3. The inner side of one nut 5 matched with the limiting step 9 is provided with a groove 11.
The specific assembling and disassembling process of the hydraulic bolt is as follows: the outer conical surface of the screw rod 3 is the same as the inner conical surface of the conical sleeve 4, the screw rod 3 and the conical sleeve 4 can be directly installed in connecting holes of a first connecting shaft flange 1 and a second connecting shaft flange 2 after being assembled, the outer cylindrical end surface of a limiting step 9 of the conical sleeve 4 is attached to the end surface of a flange hole, then a hydraulic stretcher 12 is installed on a thread at one end of the screw rod 3, expansion pressure is achieved according to design requirements, axial tension is generated through the hydraulic stretcher 12, the screw rod 3 moves in the conical sleeve 4, meanwhile, the conical sleeve 4 is radially expanded, so that a gap between the conical sleeve 4 and the connecting holes of the first connecting shaft flange 1 and the second connecting shaft flange 2 is eliminated, a certain interference amount is achieved, and then the hydraulic stretcher 12 is screwed out; and finally, respectively installing nuts 5 at two ends, requiring the end faces of the first connecting shaft flange 1 and the second connecting shaft flange 2 to be leveled, respectively installing a pre-tightening sleeve 13 and a hydraulic stretcher 12 into the screw rods, sleeving the screw rods on the nuts 5, generating axial pre-tightening force through the hydraulic stretcher 12, and simultaneously inserting a rotating rod 14 into the jack 10 to lock the nuts 5, so as to realize the connection of the end faces of the two flanges. When the hydraulic bolt is disassembled, high-pressure oil passes through the screw hole 7 and the spiral groove 6 on the outer conical surface of the screw rod 3, so that the taper sleeve 4 is expanded to reach or exceed the maximum oil pressure during installation, the screw rod 3 freely falls off or moves in the taper sleeve 4, and the hydraulic bolt can be smoothly taken out of the flange hole.
It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.
Claims (5)
1. A hydraulic bolt with self-positioning function, characterized in that it comprises:
a first flange, which is provided with a first connecting hole,
a second flange having a second connection hole corresponding to the first connection hole,
the screw rod is provided with threads at two ends, the middle excircle part of the screw rod is provided with a certain taper, and the surface of the screw rod is provided with a spiral groove; and one end of the screw rod is provided with a screw hole communicated with the spiral groove,
the taper sleeve is provided with an inner taper hole with the same taper as the outer surface of the screw rod, the screw rod penetrates through the taper sleeve, one end of the taper sleeve is provided with a limiting component used for limiting the installation position of the taper sleeve,
and the screw rod and the taper sleeve penetrate through the first connecting hole and the second connecting hole after being assembled, and the two locking nuts are locked at two ends of the screw rod.
2. The hydraulic bolt with the self-positioning function according to claim 1, wherein the limiting part is a limiting step arranged at one end of the taper sleeve, and a groove is formed in the inner side of one of the lock nuts in cooperation with the limiting step.
3. The hydraulic bolt with self-positioning function according to claim 1, wherein the screw hole is opened on an end face of the screw rod.
4. The hydraulic bolt with self-positioning function as claimed in claim 1, wherein the outer wall of the nut is provided with a plurality of insertion holes for facilitating locking.
5. The hydraulic bolt with self-positioning function according to claim 1, wherein an oil passage is provided in the screw, one end of the oil passage is communicated with the spiral groove, and the other end is communicated with the screw hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023139019.4U CN214110208U (en) | 2020-12-23 | 2020-12-23 | Hydraulic bolt with self-positioning function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023139019.4U CN214110208U (en) | 2020-12-23 | 2020-12-23 | Hydraulic bolt with self-positioning function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214110208U true CN214110208U (en) | 2021-09-03 |
Family
ID=77513844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023139019.4U Active CN214110208U (en) | 2020-12-23 | 2020-12-23 | Hydraulic bolt with self-positioning function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214110208U (en) |
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2020
- 2020-12-23 CN CN202023139019.4U patent/CN214110208U/en active Active
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