CN217421798U

CN217421798U - Fracture-resistant high-strength bolt

Info

Publication number: CN217421798U
Application number: CN202221526306.7U
Authority: CN
Inventors: 梅家魏; 郝绪飞
Original assignee: Yantai Hangwei Machinery Manufacturing Co ltd
Current assignee: Yantai Hangwei Machinery Manufacturing Co ltd
Priority date: 2022-06-17
Filing date: 2022-06-17
Publication date: 2022-09-13
Anticipated expiration: 2032-06-17

Abstract

The utility model relates to an anti cracked high strength bolt, including the bolt head, the bottom fixed mounting of bolt head has the connecting rod, the bottom fixed mounting of connecting rod has the screw rod, the fixed surface of screw rod installs lock nut, lock nut's top fixed mounting has the rubber gasket, the bottom fixed mounting of bolt head has tensile structure. This anti cracked high strength bolt, through the bolt head that sets up, cooperation lock nut plays the effect of fastening, the connecting rod of setting, play the effect of connecting, and bear the pulling force, the screw rod of setting, be used for connecting lock nut, the screw thread of rolling die press forming can guarantee that the plasticity streamline is not cut off, and the high strength, the lock nut of setting, be used for fastening the work piece, the rubber gasket of setting, the rubber gasket can provide certain elasticity, slow down vibrations and drag, the tensile structure of setting, the power of dragging of dispersion vibrations, and can slow down vibrations and drag, the tensile fracture ability of reinforcing bolt.

Description

Fracture-resistant high-strength bolt

Technical Field

The utility model relates to a high strength bolt technical field specifically is an anti cracked high strength bolt.

Background

The high-strength bolt is made of high-strength steel or needs to be applied with bolts with larger pretightening force, and can be called as the high-strength bolt, the high-strength bolt is mainly used for connecting bridges, steel rails, high-pressure equipment and ultrahigh-pressure equipment, the fracture of the bolt is mostly brittle fracture, the high-strength bolt is applied to the ultrahigh-pressure equipment, and larger prestress needs to be applied to ensure the sealing of a container.

The high strength bolt is mostly permanent connection, has the high advantage of the load that bears, and the position that the high strength bolt used shakes greatly mostly, and long-time vibrations are dragged, cause the high strength bolt fracture easily, so proposed an anti cracked high strength bolt and solved the problem in the aforesaid.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides an anti cracked high strength bolt possesses tensile fracture's advantage, and it is great to have solved the most vibrations in the position that high strength bolt used, and long-time vibrations are dragged, cause the cracked problem of high strength bolt easily.

In order to achieve the above purpose, the utility model provides a following technical scheme: the anti-fracture high-strength bolt comprises a bolt head, wherein a connecting rod is fixedly mounted at the bottom of the bolt head, a screw rod is fixedly mounted at the bottom of the connecting rod, a locking nut is fixedly mounted on the outer surface of the screw rod, a rubber gasket is fixedly mounted at the top of the locking nut, and a tensile structure is fixedly mounted at the bottom of the bolt head;

tensile structure includes spring, fixed shim, retainer plate, rubber circle and high strength billet, the bottom fixed mounting of bolt head has the spring, the bottom fixed mounting of spring has the fixed shim, the outer fixed surface of connecting rod installs the retainer plate, the outer fixed surface of retainer plate installs the rubber circle, the outer fixed surface of connecting rod installs the high strength billet.

Further, the bolt head, the connecting rod, the screw rod and the locking nut are all made of cold heading steel, and the thread of the screw rod is formed by pressing through a rolling die.

Furthermore, the number of the springs is four, one ends of the four springs are respectively positioned on the front, rear, left and right sides of the top of the fixed gasket, and the other ends of the four springs are respectively positioned on the front, rear, left and right sides of the bottom of the bolt head.

Further, retainer plate quantity is three, three the retainer plate is the equidistance and distributes at the surface of connecting rod, the quantity of rubber circle is three.

Furthermore, the number of the high-strength steel bars is eight, the eight high-strength steel bars are divided into two groups, and the eight high-strength steel bars are respectively positioned on the front, the back, the left and the right of the three fixing rings between every two high-strength steel bars.

Further, eight high-strength steel bars are made of high-strength tungsten steel, and three fixing rings are made of cold heading steel.

Compared with the prior art, the technical scheme of the application has the following beneficial effects:

1. this anti cracked high strength bolt, through the bolt head that sets up, cooperation lock nut plays the effect of fastening, the connecting rod of setting, play the effect of connecting, and bear the pulling force, the screw rod of setting, be used for connecting lock nut, the screw thread of rolling die press forming can guarantee that the plasticity streamline is not cut off, and the high strength, the lock nut of setting, with screw rod threaded connection, be used for fastening the work piece, the rubber gasket of setting, the rubber gasket can provide certain elasticity, slow down vibrations and drag, the tensile structure of setting, the power of dragging of dispersion vibrations, and can slow down vibrations and drag, the tensile fracture ability of reinforcing bolt.

2. This anti cracked high strength bolt, spring through setting up, when using, arrange the screw rod in the work piece connecting hole, pound the bolt head downwards, make retainer plate and rubber circle get into the connecting hole, and the rubber circle is inseparable with the pore wall laminating, be connected lock nut and screw rod, through the screw fastening work piece, while retaining washer and work piece contact compression spring, when the work piece shakes, elasticity through spring and rubber gasket, can slow down the power of dragging of vibrations to the bolt, and simultaneously, the rubber circle is inseparable with the pore wall laminating, strengthen the frictional force of connecting rod and pore wall, will shake and drag power dispersion to whole connecting rod, make the connecting rod atress even, the high strength billet can strengthen the anti-shear capacity of connecting rod, avoid the connecting rod fracture.

Drawings

FIG. 1 is a schematic view of the three-dimensional structure of the present invention;

FIG. 2 is a front view of the structure of the present invention;

fig. 3 is an enlarged view of a structure in fig. 2 according to the present invention.

In the figure: 1. a bolt head; 2. a connecting rod; 3. a screw; 4. locking the nut; 5. a rubber gasket; 6. a tensile structure; 601. a spring; 602. fixing a gasket; 603. a stationary ring; 604. a rubber ring; 605. high strength steel strip.

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. 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.

Referring to fig. 1-3, a fracture-resistant high-strength bolt includes a bolt head 1, a locking nut 4 is arranged on the bolt head 1 to perform a fastening function, a connecting rod 2 is fixedly arranged at the bottom of the bolt head 1, the connecting rod 2 is arranged to perform a connecting function and bear a tensile force, a screw rod 3 is fixedly arranged at the bottom of the connecting rod 2 and is used for connecting the locking nut 4, a thread formed by rolling die pressing can ensure that a plastic streamline is not cut off, the strength is improved, the locking nut 4 is fixedly arranged on the outer surface of the screw rod 3, the locking nut 4 is in threaded connection with the screw rod 3 and is used for fastening a workpiece, a rubber gasket 5 is fixedly arranged at the top of the locking nut 4, the rubber gasket 5 is arranged, the rubber gasket 5 can provide certain elasticity and slow down vibration and drag, the rubber gasket 5 arranged on a tensile structure 6 is fixedly arranged at the bottom of the bolt head 1, the rubber gasket 5 can provide certain elasticity to slow down vibration and pulling.

The tensile structure 6 comprises a spring 601, a fixed gasket 602, a fixed ring 603, a rubber ring 604 and a high-strength steel bar 605, the spring 601 is fixedly installed at the bottom of the bolt head 1, the fixed gasket 602 is fixedly installed at the bottom of the spring 601, the fixed ring 603 is fixedly installed on the outer surface of the connecting rod 2, the rubber ring 604 is fixedly installed on the outer surface of the fixed ring 603, the high-strength steel bar 605 is fixedly installed on the outer surface of the connecting rod 2, through the arranged spring 601, when the tensile structure is used, the screw 3 is placed in a workpiece connecting hole, the bolt head 1 is hammered downwards, the fixed ring 603 and the rubber ring 604 enter the connecting hole, the rubber ring 604 is tightly attached to the hole wall, the locking nut 4 is connected with the screw 3, the workpiece is fastened through threads, meanwhile, the fixed gasket 602 is in contact with the workpiece to compress the spring 601, when the workpiece vibrates, the tensile force of the bolt due to vibration can be reduced through the elastic force of the spring 601 and the rubber gasket 5, meanwhile, the rubber ring 604 is tightly attached to the hole wall, friction between the connecting rod 2 and the hole wall is enhanced, vibration pulling force is dispersed to the whole connecting rod 2, the connecting rod 2 is evenly stressed, and the high-strength steel bar 605 can enhance the anti-shearing capacity of the connecting rod 2 and avoid the fracture of the connecting rod 2.

When the method is implemented, the method comprises the following steps:

1) when the bolt is used, the screw 3 is placed in a workpiece connecting hole, the bolt head 1 is hammered downwards, so that the fixing ring 603 and the rubber ring 604 enter the connecting hole, and the rubber ring 604 is tightly attached to the wall of the hole;

2) connecting a locking nut 4 with a screw rod 3, fastening a workpiece through threads, and simultaneously enabling a fixed gasket 602 to be in contact with the workpiece to compress a spring 601;

3) when the workpiece vibrates, the pulling force of the vibration on the bolt can be relieved through the elastic force of the spring 601 and the rubber gasket 5;

4) the rubber ring 604 is tightly attached to the hole wall, the friction force between the connecting rod 2 and the hole wall is enhanced, the vibration pulling force is dispersed to the whole connecting rod 2, the connecting rod 2 is uniformly stressed, and the high-strength steel bar 605 can enhance the anti-shearing capacity of the connecting rod 2 and avoid the fracture of the connecting rod 2.

To sum up, this anti cracked high strength bolt, through the bolt head 1 that sets up, cooperation lock nut 4 plays the effect of fastening, the connecting rod 2 of setting, play the effect of connection, and bear the pulling force, the screw rod 3 of setting, be used for connecting lock nut 4, the screw thread of rolling die press forming can guarantee that the plasticity streamline is not cut off, and the intensity is improved, the lock nut 4 of setting, with 3 threaded connection of screw rod, be used for fastening the work piece, the rubber gasket 5 of setting, rubber gasket 5 can provide certain elasticity, slow down vibrations and drag, the tensile structure 6 of setting, the pulling force of dispersion vibrations, and can slow down vibrations and drag, the tensile fracture ability of reinforcing bolt.

And through the arranged spring 601, when in use, the screw rod 3 is arranged in the workpiece connecting hole, the bolt head 1 is hammered downwards, so that the fixing ring 603 and the rubber ring 604 enter the connecting hole, and the rubber ring 604 is tightly attached to the hole wall, the lock nut 4 is connected with the screw rod 3, the workpiece is fastened through threads, meanwhile, the fixed gasket 602 is in contact with the workpiece to compress the spring 601, when the workpiece vibrates, the pulling force of the vibration to the bolt can be reduced through the elastic force of the spring 601 and the rubber gasket 5, meanwhile, the rubber ring 604 is tightly attached to the hole wall, the friction force between the connecting rod 2 and the hole wall is enhanced, the vibration pulling force is dispersed to the whole connecting rod 2, make connecting rod 2 atress even, high strength billet 605 can strengthen connecting rod 2's anti-shear capacity, avoids connecting rod 2 fracture, and it is great to have solved the most vibrations in the position that high strength bolt used, and long-time vibrations are dragged, cause the cracked problem of high strength bolt easily.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

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

1. A high strength bolt resistant to breakage, comprising a bolt head (1), characterized in that: the bottom of the bolt head (1) is fixedly provided with a connecting rod (2), the bottom of the connecting rod (2) is fixedly provided with a screw (3), the outer surface of the screw (3) is fixedly provided with a locking nut (4), the top of the locking nut (4) is fixedly provided with a rubber gasket (5), and the bottom of the bolt head (1) is fixedly provided with a tensile structure (6);

tensile structure (6) include spring (601), fixation gasket (602), retainer plate (603), rubber circle (604) and high strength billet (605), the bottom fixed mounting of bolt head (1) has spring (601), the bottom fixed mounting of spring (601) has retainer plate (602), the outer fixed surface of connecting rod (2) installs retainer plate (603), the outer fixed surface of retainer plate (603) installs rubber circle (604), the outer fixed surface of connecting rod (2) installs high strength billet (605).

2. A fracture-resistant, high-strength bolt as defined in claim 1, wherein: the bolt head (1), the connecting rod (2), the screw rod (3) and the locking nut (4) are all made of cold heading steel, and the thread of the screw rod (3) is formed by pressing through a rolling die.

3. A fracture-resistant, high-strength bolt as defined in claim 1, wherein: the number of the springs (601) is four, one ends of the four springs (601) are respectively located on the front, rear, left and right sides of the top of the fixed gasket (602), and the other ends of the four springs (601) are respectively located on the front, rear, left and right sides of the bottom of the bolt head (1).

4. The fracture-resistant, high-strength bolt of claim 1, wherein: the quantity of retainer plate (603) is three, three retainer plate (603) are the equidistance and distribute at the surface of connecting rod (2), the quantity of rubber circle (604) is three.

5. A fracture-resistant, high-strength bolt as defined in claim 1, wherein: the number of the high-strength steel bars (605) is eight, the eight high-strength steel bars (605) are divided into two groups, and the eight high-strength steel bars (605) are respectively positioned on the front, back, left and right sides between every two three fixing rings (603).

6. A fracture-resistant, high-strength bolt as defined in claim 1, wherein: the eight high-strength steel bars (605) are made of high-strength tungsten steel, and the three fixing rings (603) are made of cold forging steel.