Self-locking type anti-seismic bolt for road roller

Abstract

The utility model belongs to the technical field of anti-seismic bolts, and particularly relates to a self-locking type anti-seismic bolt for a road roller, which comprises a nut, a first friction plate surface is connected to the lower surface of the nut in an embedded manner, a first tightening clamping groove is formed in the bottom of the first friction plate surface, a first friction traction plate is mounted in the first tightening clamping groove, and a second friction traction plate is mounted in the first tightening clamping groove. The first friction traction plate is movably connected to the bottom of the first friction plate face, a threaded rod is installed at the bottom of the nut, and a polished rod is arranged on the side, close to the nut, of the threaded rod. By arranging related structures such as the first friction plate surface and the second friction plate surface, the friction force of the nut and the nut to an attachment surface is enhanced, the problem that the nut and the nut are prone to resetting due to high vibration frequency is avoided, and meanwhile by designing related structures such as the first positioning wedge groove, it is guaranteed that the nut and the nut can be forcibly positioned, and the vibration frequency is reduced. Certain deformation buffering can be achieved, and the use safety of the device is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of earthquake-resistant bolts, in particular to a self-locking earthquake-resistant bolt for a road roller. Background Art

[0002] A bolt is a mechanical part, a cylindrical threaded fastener that fits a nut. It is a type of fastener consisting of a head and a screw. It must be used with a nut to fasten two parts with through holes. This type of connection is called a bolt connection. If the nut is unscrewed from the bolt, the two parts can be separated. Therefore, a bolt connection is a detachable connection.

[0003] Patent publication number CN221742997U proposes a seismic-resistant bolt, which mainly proposes that during use, the bolt vibrates due to the influence of the operation of the equipment, which can easily cause the nut to loosen and fall off. The falling of the nut can easily cause the bolt to detach, causing the fastener to lose its fixing function. The patent also proposes a vibration-absorbing rotation structure to enhance the tightening force of the bolt. At the same time, the vibration-absorbing rotation structure cooperates with the rotation-following structure to enable the bolt body and the nut to rotate simultaneously, and the vibration generated by the rotating buffer part is used to prevent loosening, thereby solving the problem proposed.

[0004] However, in actual use, we found that the bolts on the connecting arm of the road roller were subjected to excessive vibration. When the bolts were fixed, the vibration frequency was too high. If the nut and screw were always kept in an extremely tight fixed state, the fitting surface of the screw and nut would be excessively worn in long-term use, which could easily lead to thread slippage and dislocation, thus affecting the fixing effect.

[0005] Therefore, we designed a self-locking anti-seismic bolt for rollers. Utility Model Content

[0006] In order to make up for the shortcomings of the existing technology and solve the problem that due to the high vibration frequency, if the nut and screw are always kept in an extremely tightly fixed state, the fitting surfaces of the screw and nut will produce excessive wear during long-term use, which is very likely to cause thread stripping and dislocation, thereby affecting the fixing effect, a self-locking anti-seismic bolt for a road roller is proposed.

[0007] The technical solution adopted by the present invention to solve its technical problems is: the self-locking anti-seismic bolt of a road roller described in the present invention includes a nut, the lower surface of the nut is embedded in a first friction plate surface, the bottom of the first friction plate surface is provided with a first convergence slot, the interior of the first convergence slot is provided with a first friction pulling plate, the first friction pulling plate is movably connected to the bottom of the first friction plate surface, a threaded rod is installed at the bottom of the nut, a smooth rod is provided on the side of the threaded rod close to the nut, a first positioning wedge groove is provided on the surface of the smooth rod, the top of the first positioning wedge groove is in contact with the bottom of the nut, and the interior of the first positioning wedge groove is a trapezoidal structure.

[0008] Preferably, a protrusion is provided on one side of the first friction plate surface close to the first positioning wedge groove, and the protrusion matches the internal shape of the first positioning wedge groove. The protrusion is used to position the vertical direction of the first friction plate surface and the threaded rod, and to position the installation of the first friction plate surface to prevent it from dislocation.

[0009] Preferably, a nut is sleeved on the surface of the threaded rod, a second friction plate surface is installed on the upper surface of the nut, a second convergence slot is provided on the surface of the second friction plate surface, a second friction pulling plate is movably connected to the interior of the second convergence slot, a second positioning wedge slot is provided inside the nut, and the second positioning wedge slot is also provided inside the second friction plate surface to ensure that the second positioning wedge slot and the first positioning wedge slot can match and engage.

[0010] Preferably, the opening shape of the second converging slot matches the appearance of the second friction pulling plate, and the interior of the second converging slot is provided with anti-slip grooves, which are also provided inside the first converging slot. The opening shape of the first converging slot also matches the installation shape of the first friction pulling plate, thereby ensuring its friction effect.

[0011] Preferably, the second friction plate surface and the first friction plate surface are both made of the same material structure. A slot is provided on the top of the nut, which is used to fix the installation of the second friction plate surface. The surface of the nut close to the first friction plate surface is provided with an interlocking groove, which is also used to fix the installation of the first friction plate surface. This arrangement ensures that it will not be dislocated during use.

[0012] Preferably, a positioning wedge block is clamped inside the first positioning wedge groove, and the positioning wedge block is also clamped inside the second positioning wedge groove. Support reinforcement ribs are installed inside the positioning wedge block, and the support reinforcement ribs are installed in a spaced array to support the use strength of the positioning wedge block. Since the support reinforcement ribs themselves are made of soft materials, there is a certain deformation space for buffering.

[0013] Beneficial effects of the utility model:

[0014] The utility model provides a self-locking anti-seismic bolt for a road roller. By arranging related structures such as a first friction plate surface and a second friction plate surface, the friction force of the nut and the attachment surface is strengthened, thereby avoiding the problem that the nut and the nut are easily reset due to high vibration frequency. At the same time, through the design of related structures such as the first positioning wedge groove, it is ensured that the nut and the nut can be forcibly positioned while having a certain deformation buffer, thereby enhancing the safety of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0016] Figure 1 It is a three-dimensional diagram of the utility model;

[0017] Figure 2 It is a three-dimensional diagram of the nut in the utility model;

[0018] Figure 3 It is a three-dimensional diagram of the positioning wedge in the utility model.

[0019] Legend:

[0020] 1. Nut; 2. First convergence slot; 3. First friction pull plate; 4. First positioning wedge slot; 5. Threaded rod; 6. Smooth rod; 7. Nut; 8. Second positioning wedge slot; 9. Second friction pull plate; 10. Second convergence slot; 11. First friction plate surface; 12. Second friction plate surface; 13. Positioning wedge block; 14. Support reinforcement rib. DETAILED DESCRIPTION

[0021] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] Specific examples are given below.

[0023] See also Figure 1-Figure 3The utility model provides a self-locking anti-seismic bolt for a road roller, including a nut 1, a first friction plate surface 11 being engaged with the lower surface of the nut 1, a first convergence slot 2 being provided at the bottom of the first convergence slot 2, a first friction pulling plate 3 being installed inside the first convergence slot 2, the first friction pulling plate 3 being movably connected to the bottom of the first friction plate surface 11, a threaded rod 5 being installed at the bottom of the nut 1, a smooth rod 6 being provided on the side of the threaded rod 5 close to the nut 1, a first positioning wedge groove 4 being provided on the surface of the smooth rod 6, the top of the first positioning wedge groove 4 being in contact with the bottom of the nut 1, and the interior of the first positioning wedge groove 4 being a trapezoidal structure.

[0024] The first friction plate 3 can increase the reverse rotation friction of the nut 1 under the contraction of the first contraction slot 2, thereby providing the nut 1 with the necessary buffering force, thereby avoiding the problem of thread slippage of the nut 1 caused by continuous tightening.

[0025] Reference Figure 1-3 , wherein a protrusion is provided on one side of the first friction plate surface 11 close to the first positioning wedge groove 4, and the protrusion matches the internal shape of the first positioning wedge groove 4, and the protrusion is used to position the first friction plate surface 11 and the threaded rod 5 in the vertical direction.

[0026] In this embodiment, through such an arrangement, the first friction plate surface 11 increases the friction between the nut 1 and the clamping member. At the same time, the first friction plate surface 11 opens the first tightening groove 2, which can compress and tighten the first friction pulling plate 3 when the nut 1 is inserted into the clamping member. During the compression, if the nut 1 wants to rotate in the opposite direction, the first friction pulling plate 3 will be affected by the rotation of the nut 1, thereby being rolled up and squeezed in a small space, thereby avoiding problems such as dislocation of the nut 1 during vibration.

[0027] Reference Figure 1-3, wherein, a nut 7 is sleeved on the surface of the threaded rod 5, a second friction plate surface 12 is installed on the upper surface of the nut 7, a second convergence slot 10 is opened on the surface of the second friction plate surface 12, and a second friction pulling plate 9 is movably connected inside the second convergence slot 10, a second positioning wedge groove 8 is opened inside the nut 7, and the second positioning wedge groove 8 is also opened inside the second friction plate surface 12.

[0028] In this embodiment, through such an arrangement, during the use of the device, the installation of the second friction plate surface 12 ensures that the nut 7 can have the same function as the nut 1. When fixed in position, the second friction pulling plate 9 can be pressed into the interior of the second tightening slot 10, thereby avoiding the problem that the nut 7 is easily rotated in the opposite direction and then dislocated due to vibration.

[0029] Reference Figure 1-3 , wherein the opening shape of the second converging slot 10 matches the appearance of the second friction pulling plate 9, and the interior of the second converging slot 10 is provided with anti-slip grooves, which are also opened inside the first converging slot 2, and the opening shape of the first converging slot 2 also matches the installation shape of the first friction pulling plate 3.

[0030] In this embodiment, through such an arrangement, it can be seen that such an arrangement ensures that the second converging slot 10 and the first converging slot 2 can increase the friction between the second friction pulling plate 9 and the first friction pulling plate 3, thereby avoiding the device being unable to be used normally due to the smooth interior during use, thereby preventing the second friction pulling plate 9 and the first friction pulling plate 3 from being dislocated.

[0031] Reference Figure 1-3 , wherein the second friction plate surface 12 and the first friction plate surface 11 are both made of the same material structure. A card slot is provided on the top of the nut 7, which is used to fix the installation of the second friction plate surface 12. The surface of the nut 1 close to the first friction plate surface 11 is provided with an interlocking groove, which is also used to fix the installation of the first friction plate surface 11.

[0032] In this embodiment, by such a setting, the device can effectively ensure the fixing effect between the first friction plate surface 11 and the second friction plate surface 12 and the nut 7 and the nut 1 through this setting during use, and the card groove and the interlocking groove are both opened in a circular shape, which facilitates the manufacture of the device and saves the preparation time of the device.

[0033] Reference Figure 1-3 Among them, a positioning wedge block 13 is clamped inside the first positioning wedge groove 4, and the positioning wedge block 13 is also clamped inside the second positioning wedge groove 8. Support reinforcement ribs 14 are installed inside the positioning wedge block 13. The support reinforcement ribs 14 are installed in a spaced array to support the use strength of the positioning wedge block 13.

[0034] In this embodiment, such an arrangement ensures that the device can effectively position the nut 7 and the nut 1 through the positioning wedge 13 during use, and the positioning wedge 13 is made of soft material, and the supporting reinforcement ribs 14 are arranged in multiple single rows, which to a certain extent ensures that the connection between the nut 1 and the nut 7 will not be dislocated due to vibration, and the supporting reinforcement ribs 14 themselves also have a certain deformation effect, which ensures that under hard conditions, the nut 1 and the first positioning wedge groove 4 will not be broken at the cost of damaging the supporting reinforcement ribs 14.

[0035] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention as claimed.

Claims

1. A self-locking anti-seismic bolt for a road roller, characterized by: The invention comprises a nut (1), the lower surface of the nut (1) is engaged with a first friction plate surface (11), the bottom of the first friction plate surface (11) is provided with a first convergence slot (2), the interior of the first convergence slot (2) is provided with a first friction pulling plate (3), the first friction pulling plate (3) is movably connected to the bottom of the first friction plate surface (11), a threaded rod (5) is installed at the bottom of the nut (1), a smooth rod (6) is provided on the side of the threaded rod (5) close to the nut (1), a first positioning wedge groove (4) is provided on the surface of the smooth rod (6), the top of the first positioning wedge groove (4) is in contact with the bottom of the nut (1), and the interior of the first positioning wedge groove (4) is a trapezoidal structure.

2. The self-locking anti-seismic bolt for a road roller according to claim 1, characterized in that: A protrusion is provided on one side of the first friction plate surface (11) close to the first positioning wedge groove (4), and the protrusion matches the internal shape of the first positioning wedge groove (4). The protrusion is used to position the first friction plate surface (11) and the threaded rod (5) in a vertical direction.

3. The self-locking anti-seismic bolt for a road roller according to claim 2, characterized in that: The surface of the threaded rod (5) is sleeved with a nut (7), the upper surface of the nut (7) is installed with a second friction plate surface (12), the surface of the second friction plate surface (12) is provided with a second convergence slot (10), the interior of the second convergence slot (10) is movably connected with a second friction pulling plate (9), the interior of the nut (7) is provided with a second positioning wedge groove (8), and the second positioning wedge groove (8) is also provided inside the second friction plate surface (12).

4. The self-locking anti-seismic bolt for a road roller according to claim 3, characterized in that: The opening shape of the second converging slot (10) matches the outer shape of the second friction pulling plate (9), and the interior of the second converging slot (10) is provided with anti-slip grooves, which are also provided inside the first converging slot (2), and the opening shape of the first converging slot (2) also matches the installation shape of the first friction pulling plate (3).

5. The self-locking anti-seismic bolt for a road roller according to claim 4, characterized in that: The second friction plate surface (12) and the first friction plate surface (11) are both made of the same material structure. A slot is provided on the top of the nut (7), and the slot is used to fix the installation of the second friction plate surface (12). The surface of the nut (1) close to the first friction plate surface (11) is provided with an engaging groove, and the engaging groove is also used to fix the installation of the first friction plate surface (11).

6. The self-locking anti-seismic bolt for a road roller according to claim 5, characterized in that: A positioning wedge block (13) is clamped inside the first positioning wedge groove (4), and the positioning wedge block (13) is also clamped inside the second positioning wedge groove (8). Support reinforcement ribs (14) are installed inside the positioning wedge block (13), and the support reinforcement ribs (14) are installed in a spaced array to support the use strength of the positioning wedge block (13).

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