CN213655355U - Marine pushing fastener - Google Patents
Marine pushing fastener Download PDFInfo
- Publication number
- CN213655355U CN213655355U CN202022694948.5U CN202022694948U CN213655355U CN 213655355 U CN213655355 U CN 213655355U CN 202022694948 U CN202022694948 U CN 202022694948U CN 213655355 U CN213655355 U CN 213655355U
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- pushing
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Abstract
The utility model provides a marine top pushes away fastener. The marine pushing fastener comprises a bolt, a pushing nut, a pushing screw and a pushing washer, the pushing nut is in threaded connection with the bolt, the pushing nut is fastened on the bearing surface through the pushing washer, an internal thread through hole is formed in a radial circular ring array of the pushing nut, the pushing screw is screwed into the internal thread to be tightly pressed against the pushing washer, and the pushing screw is rotated to uniformly transmit pre-tightening force from the pushing nut to a main thread of the bolt and further transmit the pre-tightening force to the bearing surface. The utility model discloses a top pushes away the nut and goes up ring array top and push away the screw, and rotatory top pushes away the screw with the pretightning force by pushing away on the screw thread that the nut transmitted to the bolt, simultaneously, top pushes away the screw top tightly on pushing away the packing ring, and reverse acting force produces the clamp force. The bolt with a smaller size can be designed due to the simple structure, the convenience in operation, the high pre-tightening force capability and the accuracy, and the applicable places are wider, so that the material investment and the processing cost are reduced. The pushing fastener is suitable for being used as a pushing fastener.
Description
Technical Field
The utility model relates to a fastener in boats and ships field especially relates to marine top pushes away fastener.
Background
In the industries of machine manufacturing and the like, the threaded fastener is called an "industrial female", and most mechanical products cannot be connected with the bolt fastener. The torque required to tighten a conventional hex bolt generally increases exponentially with respect to the bolt diameter, so that bolted joints having diameters in excess of 24 mm cannot be pre-tensioned as desired using typical hand tools. In this case, the user needs to pretension with a special tool, for example: hydraulic stretching device, hydraulic wrench, long arm crane, and methods of heating with bolt, knocking with external force, etc. Safety accidents are easily caused by the method of hammering with a hammer and pre-tightening with a crane; too long tooling preparation time is required for bolt heating; the hydraulic wrench and the hydraulic stretcher are high in cost investment, the pre-tightening is not accurate enough, and the thread adhesion phenomenon is easy to occur. For some narrow spaces of ships, the construction of the torque bolt has greater limitation and greater construction hidden danger. The utility model relates to an avoidd this a series of construction problems and potential risk effectively.
SUMMERY OF THE UTILITY MODEL
In order to enable the bolt to reach the fastening purpose at punctual high efficiency, high adaptability in the installation, the utility model provides a marine top pushes away fastener. According to the fastener, the pushing screw is pushed through the annular array on the pushing nut, the pushing screw transmits the pretightening force to the thread of the bolt through the pushing nut, meanwhile, the pushing screw is tightly pushed against the pushing washer, the reverse acting force generates clamping force, the pushing screw uniformly transmits the pretightening force to the main thread, and then the pretightening force is transmitted to the connecting piece, so that the main thread is locked by pure tension. The technical problem of bolt fastening is solved.
The utility model provides a scheme that technical problem adopted is:
the marine pushing fastener comprises a bolt, a pushing nut, a pushing screw and a pushing washer, wherein the pushing nut is in threaded connection with the bolt, the pushing nut is fastened on the bearing surface through the pushing washer, an internal thread through hole is formed in a radial circular ring array of the pushing nut, the pushing screw is screwed into the internal thread to push the pushing washer tightly, the pushing screw is rotated to uniformly transmit pretightening force to a main thread of the bolt from the pushing nut, meanwhile, the pushing screw is pushed against the pushing washer tightly, and reverse acting force generates clamping force and transmits the pretightening force to the bearing surface.
In order to further solve the technical problem to be solved by the utility model, in the marine incremental launching fastener provided by the utility model, the bolt passes through the bearing surface with the gasket at the interval, one end of the bolt is sleeved with the incremental launching washer and locked by the incremental launching nut, and the incremental launching screw of the circular ring array on the incremental launching nut tightly pushes the incremental launching washer; the other end is fastened with a nut by adopting a washer.
Further, the bearing surface is a flange and an equipment base.
Furthermore, the pushing nut is a thick nut, and the radial ring array is provided with an internal thread through hole for the pushing screw to be screwed in and pass through.
Furthermore, the middle of the pushing screw is provided with threads, the front end of the pushing screw is provided with a boss with the diameter smaller than the threads for contacting with the pushing gasket, and the rear end of the pushing screw is provided with a hexagon or a square head for bearing a wrench.
Further, the pushing gasket is made of hard metal.
Positive effect, because the utility model discloses a ring array top pushes away the screw on the top pushes away the nut, and rotatory top pushes away the screw with the pretightning force by pushing away on the screw thread that the nut transmitted to the bolt, simultaneously, top pushes away the screw top tightly on pushing away the packing ring, and reverse acting force produces the clamp force. Simple structure, convenient operation, use cost are low, use this device back, and the ability and the accuracy of high pretightning force make can design the bolt of smaller size, and then make equipment size reduce, and the place that is suitable for is more extensive to the input of material and the cost of processing have been reduced. The pushing fastener is suitable for being used as a pushing fastener.
Drawings
FIG. 1 is a cross-sectional view of a push nut;
fig. 2 is an installation schematic diagram of the present invention.
In the figure, 1, bolt, 2, nut, 3, washer, 4, pushing nut, 5, pushing screw, 6, gasket, 7, bearing surface and 8, pushing washer.
Detailed Description
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. 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. 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.
As shown in the figure, the marine jacking fastener comprises a bolt 1, a jacking nut 4, a jacking screw 5 and a jacking washer 8, wherein the jacking nut 4 is in threaded connection with the bolt 1, the jacking nut 4 is fastened on a bearing surface through the jacking washer 8, an internal thread through hole is formed in a radial circular ring array of the jacking nut 4, the jacking screw 5 is screwed into the internal thread to jack the jacking washer 8, the jacking screw 5 is rotated to uniformly transmit pretightening force to a main thread of the bolt 1 from the jacking nut 4, meanwhile, the jacking screw 5 jacks the jacking washer 8, and reverse acting force generates clamping force and transmits the clamping force to the bearing surface.
The bolt 1 penetrates through a bearing surface 7 with a gasket 6 at intervals, a jacking washer 8 is sleeved at one end of the bolt and locked through a jacking nut 4, and a jacking screw 5 of a circular ring array on the jacking nut 4 jacks the jacking washer 8 tightly; the other end is fastened with a nut 2 by a washer 3.
The bearing surface 7 is a flange and an equipment base.
The pushing nut 4 is a thick nut, and the radial ring array is provided with an internal thread through hole for the pushing screw 5 to be screwed in and penetrate through.
The middle of the pushing screw 5 is provided with threads, the front end of the pushing screw is provided with a boss with the diameter smaller than the threads for contacting with the pushing gasket 8, and the rear end of the pushing screw is provided with a hexagon or a square head for bearing a wrench.
The pushing gasket 8 is made of hard metal.
The working principle is as follows:
1. generating an axial jacking force directly acting on the hardened washer by tightening the plurality of jacking screws; the pushing screw is small in size, and larger bolt pretightening force can be realized through relatively smaller torque;
2. when the pushing screw generates axial pushing force, the axial force is transmitted to the main thread of the pushing nut;
3. the pushing washer is used for transmitting axial pushing force and protecting a pushing nut mounting surface;
4. the axial jacking force of the jacking screw and the reverse acting force between the main threads of the jacking nut generate a strong clamping force; the axial jacking force of the jacking screw generates a reaction force with the same magnitude on the bolt.
Compared with the traditional bolt fastening, the tightening force is concentrated on a single bolt, the marine pushing fastener disperses the tightening force on a plurality of pushing screws, the diameter of the pushing screws is smaller than that of the pushing nuts, the required torque is small, but the number of the pushing screws is large, and the pushing screws are combined to generate strong pushing force to act on the pushing washer and effectively transmit the strong tightening force generated between the connecting pieces.
The utility model discloses a working process:
firstly, screwing a pushing nut on a bolt and leaning against a pushing washer and a bearing surface; secondly, sequentially screwing a pushing screw into a pushing nut and tightly pushing a pushing washer; finally, the tensioning of the bolt is achieved by a simple hand tool to tighten the jacking screw around the main thread of the bolt by one turn.
The utility model has the characteristics that:
the technical scheme that this application adopted is different from traditional concept, is not restricted to increase bolt length, increase the gasket and improve bolt system and the elasticity of tightness, and traditional nut and bolt can directly be replaced to marine top pushes away the design of nut. The main thread is screwed on the bolt, the stud, the screw rod or the shaft and leans against the hard washer and the bearing surface. The actual tensioning of the bolt or stud is then achieved by a simple hand tool to tighten the jacking screw one turn around the main thread. The pushing screw uniformly transmits the pretightening force to the main thread and simultaneously transmits the pretightening force to the connected piece, and the main thread is locked by pure tension. But the aim of fastening is achieved by manually adjusting the jacking nut. The whole process of the technology realizes full manual operation, and the safety is improved. More prominently, in many confined areas, marine jack bolts are easier to install. Compared with most other methods, the product can be screwed in a shorter time.
The utility model has the advantages of being simple in structure and convenient in operation, use cost low, use this device back, the ability and the accuracy of high pretightning force make can design the bolt of smaller size, and then make equipment size reduce, and the place that is suitable for is more extensive to the input of material and the cost of processing have been reduced.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.
Claims (6)
1. Marine top pushes away fastener, characterized by: the marine incremental launching fastener comprises a bolt (1), an incremental launching nut (4), an incremental launching screw (5) and an incremental launching washer (8), wherein the incremental launching nut (4) is in threaded connection with the bolt (1), the incremental launching nut (4) is fastened on a bearing surface (7) through the incremental launching washer (8), an internal thread through hole is formed in a radial circular ring array of the incremental launching nut (4), the incremental launching screw (5) is screwed into the internal thread to tightly push the incremental launching washer (8), the incremental launching screw (5) is rotated to uniformly transmit pretightening force to main threads of the bolt (1) from the incremental launching nut (4), meanwhile, the incremental launching screw (5) is tightly pushed on the incremental launching washer (8), and reverse acting force generates clamping force and is transmitted to the bearing surface (7).
2. The marine jacking fastener as claimed in claim 1, wherein:
the bolt (1) penetrates through a bearing surface (7) with a gasket (6) at intervals, one end of the bolt is sleeved with a pushing washer (8) and locked by a pushing nut (4), and pushing screws (5) in a circular array on the pushing nut (4) tightly push the pushing washer (8); the other end is fastened with the nut (2) by a gasket (3).
3. The marine jacking fastener as claimed in claim 1, wherein:
the bearing surface (7) is a flange and an equipment base.
4. The marine jacking fastener as claimed in claim 1, wherein:
the pushing nut (4) is a thick nut, and the radial ring array is provided with an internal thread through hole for the pushing screw (5) to be screwed in and penetrate through.
5. The marine jacking fastener as claimed in claim 1, wherein:
the middle of the pushing screw (5) is provided with threads, the front end of the pushing screw is provided with a boss with the diameter smaller than the threads for contacting with the pushing gasket (8), and the rear end of the pushing screw is provided with a hexagon or a square head for bearing a wrench.
6. The marine jacking fastener as claimed in claim 1, wherein:
the pushing gasket (8) is made of hard metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022694948.5U CN213655355U (en) | 2020-11-19 | 2020-11-19 | Marine pushing fastener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022694948.5U CN213655355U (en) | 2020-11-19 | 2020-11-19 | Marine pushing fastener |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213655355U true CN213655355U (en) | 2021-07-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022694948.5U Active CN213655355U (en) | 2020-11-19 | 2020-11-19 | Marine pushing fastener |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213655355U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113685446A (en) * | 2021-08-12 | 2021-11-23 | 华能国际电力股份有限公司上安电厂 | Improved structure of low-pressure rotor and high-medium-pressure rotor coupler |
-
2020
- 2020-11-19 CN CN202022694948.5U patent/CN213655355U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113685446A (en) * | 2021-08-12 | 2021-11-23 | 华能国际电力股份有限公司上安电厂 | Improved structure of low-pressure rotor and high-medium-pressure rotor coupler |
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