阅读说明：本技术 专用桨形螺栓、螺栓装配结构及检验工装 (Special paddle-shaped bolt, bolt assembly structure and inspection tool ) 是由 曹胜年 申理仁 肖跃军 于 2020-04-23 设计创作，主要内容包括：本发明公开了一种专用桨形螺栓、螺栓装配结构及检验工装,专用桨形螺栓包括头部以及与所述头部连接的螺杆部,头部的长度方向中轴线与所述螺杆部的轴线相交垂直,头部包括沿所述长度方向中轴线彼此反向延伸的第一桨叶部和第二桨叶部,第一桨叶在所述长度方向中轴线的第一侧具有相对于长度方向中轴线倾斜的第一斜边,所述第二桨叶在所述长度方向中轴线的第二侧具有相对于所述长度方向中轴线倾斜的第二斜边,所述第一斜边朝向所述头部的中心逐渐靠近所述长度方向中轴线,所述第二斜边朝向所述头部的中心逐渐靠近所述长度方向中轴线。该专用桨形螺栓旨在解决现有技术中的T型螺栓进行紧固装配时存在严重松脱风险的技术问题。(The invention discloses a special paddle bolt, a bolt assembly structure and an inspection tool, wherein the special paddle bolt comprises a head part and a screw part connected with the head part, the central axis of the head part in the length direction is intersected and vertical to the axis of the screw part, the head part comprises a first paddle part and a second paddle part, the first paddle part and the second paddle part extend in opposite directions along the central axis of the length direction, the first paddle part is provided with a first bevel edge inclined relative to the central axis of the length direction on the first side of the central axis of the length direction, the second paddle part is provided with a second bevel edge inclined relative to the central axis of the length direction on the second side of the central axis of the length direction, the first bevel edge is gradually close to the central axis of the length direction towards the center of the head part, and the second bevel edge is gradually close to the central axis of. The special paddle bolt aims at solving the technical problem that when a T-shaped bolt in the prior art is fastened and assembled, the serious loosening risk exists.)

1. The utility model provides a special oar shape bolt, its characterized in that, including the head and with the screw rod portion that the head is connected, the length direction axis of head with the crossing perpendicular of axis of screw rod portion, the head includes along first paddle portion and the second paddle portion that the length direction axis extends each other in reverse, first paddle is in the first side of length direction axis has for the first hypotenuse of length direction axis slope, the second paddle is in the second side of length direction axis has for the second hypotenuse of length direction axis slope, first hypotenuse orientation the center of head is close to gradually the length direction axis, the second hypotenuse orientation the center of head is close to gradually the length direction axis.

2. The special paddle bolt of claim 1, wherein the first paddle has a first straight side parallel to the longitudinal centerline axis on the second side of the longitudinal centerline axis and the second paddle has a second straight side parallel to the longitudinal centerline axis on the first side of the longitudinal centerline axis.

3. The specialized paddle bolt of claim 2, wherein the first angled edge has an angle greater than or equal to 18 ° with the first straight edge, and wherein the second angled edge has an angle greater than or equal to 18 ° with the second straight edge.

4. The special paddle bolt according to any one of claims 1 to 3, wherein the surface of the head portion facing away from the shank portion forms a spherical surface.

5. A bolt assembly structure, characterized by comprising a structure body and the special paddle bolt according to any one of claims 1 to 4, wherein the structure body is provided with a long hole, one side of the structure body is provided with a first stop block and a second stop block, the first stop block and the second stop block are arranged at two sides of the long hole, the special paddle bolt is arranged in the long hole in a penetrating way, the first inclined edge is in contact with the first stop block, and the second inclined edge is in contact with the second stop block.

6. The bolt assembling structure according to claim 5, wherein a distance between said first stopper and said second stopper in a length direction of said elongated hole is 0.

7. The bolt assembling structure according to claim 5 or 6, wherein said structural body is a cross beam to which a screen plate for mineral aggregate or flux classification is mounted by said special paddle bolt.

8. The bolt assembling structure according to claim 5 or 6, wherein a rotation angle of said dedicated paddle bolt with respect to said long hole is 70 ° or more.

9. An inspection tool applied to the special paddle bolt according to any one of claims 1 to 4, wherein the inspection tool comprises a U-shaped plate and an orifice plate, each of which is provided with a long hole, the U-shaped plate is arranged on a bottom plate, the inner side of the U-shaped plate faces the bottom plate, the inner side of the U-shaped plate is provided with a first stop block and a second stop block, the first stop block and the second stop block are arranged at two sides of the long hole, the special paddle bolt is used for being arranged on the long hole in a penetrating mode to connect the U-shaped plate and the orifice plate, the first inclined edge is used for being in contact with the first stop block, and the second inclined edge is used for being in contact with the second stop block.

10. The inspection tool according to claim 9, wherein a distance between the first stopper and the second stopper in a length direction of the long hole is 0.

Technical Field

The invention relates to the field of bolt assembly, in particular to a special paddle bolt, a bolt assembly structure comprising the special paddle bolt and an inspection tool applied to the special paddle bolt.

Background

The bolt is widely applied to industrial equipment, has various types, specifications and functions, and is suitable for different workplaces. Fig. 1 to 3 show a cross beam 1 mounted with a T-bolt 3 in the prior art, the T-bolt 3 is specifically mounted in a long hole 2 of the cross beam 1, the T-bolt 3 is inserted into the long hole 2, and then the T-bolt 3 is rotated by 90 ° in the direction S, so that the long side of the T-bolt 3 is blocked by stoppers (a first stopper 4 and a second stopper 5) on both sides of the long hole 2, and the distance between the stoppers is designed to be L in this state.

The arrangement of the stop block below the long hole 2 is shown in fig. 4, and the design distance L of the stop block must be ensured during manufacturing to ensure that the long edge of the T-shaped bolt 3 forms an angle of 90 degrees with the long hole 2. In actual production, the size cannot be guaranteed for some reason, the limit condition even enables L to be 0, at this time, due to the limitation of the stop block, the rotation angle beta is far less than 90 degrees when the inserted bolt rotates (see fig. 5), so that the contact area is extremely small, and the bolt has a serious risk of loosening.

Disclosure of Invention

Technical problem to be solved

Based on the technical scheme, the invention provides the special paddle bolt which aims to solve the technical problem that the T-shaped bolt in the prior art has serious loosening risk when being fastened and assembled.

(II) technical scheme

In order to solve the technical problem, the invention provides a special paddle bolt, which comprises a head part and a screw part connected with the head part, wherein a length direction central axis of the head part is perpendicular to an axis of the screw part in an intersecting manner, the head part comprises a first paddle part and a second paddle part, the first paddle part and the second paddle part extend in opposite directions along the length direction central axis, the first paddle part is provided with a first inclined edge inclined relative to the length direction central axis on a first side of the length direction central axis, the second paddle part is provided with a second inclined edge inclined relative to the length direction central axis on a second side of the length direction central axis, the first inclined edge gradually approaches to the length direction central axis towards the center of the head part, and the second inclined edge gradually approaches to the length direction central axis towards the center of the head part.

Preferably, the first blade has a first straight side parallel to the longitudinal direction central axis on a second side of the longitudinal direction central axis, and the second blade has a second straight side parallel to the longitudinal direction central axis on the first side of the longitudinal direction central axis.

Preferably, the angle between the first oblique edge and the first straight edge is greater than or equal to 18 °, and the angle between the second oblique edge and the second straight edge is greater than or equal to 18 °.

Preferably, the surface of the head portion facing away from the screw portion forms a spherical surface.

In addition, the invention also provides a bolt assembling structure, which comprises a structure main body and the special paddle bolt, wherein the structure main body is provided with a long hole, one side of the structure main body is provided with a first stop block and a second stop block, the first stop block and the second stop block are arranged on two sides of the long hole, the special paddle bolt penetrates through the long hole, the first inclined edge is in contact with the first stop block for stopping, and the second inclined edge is in contact with the second stop block for stopping.

Preferably, the distance between the first stopper and the second stopper along the length direction of the long hole is 0.

Preferably, the structural main body is a cross beam, and a sieve plate for mineral aggregate or flux classification is mounted on the cross beam through the special paddle bolt.

Preferably, the rotation angle of the dedicated paddle bolt with respect to the elongated hole is greater than or equal to 70 °.

In addition, the invention also provides an inspection tool applied to the special paddle bolt, wherein the inspection tool comprises a U-shaped plate and a hole plate, each U-shaped plate is provided with a long hole, the U-shaped plate is arranged on a bottom plate, the inner side of the U-shaped plate faces the bottom plate, the inner side of the U-shaped plate is provided with a first stop block and a second stop block, the first stop block and the second stop block are arranged on two sides of the long hole, the special paddle bolt is used for being arranged in the long hole in a penetrating mode to connect the U-shaped plate and the hole plate, the first inclined edge is used for being in contact with the stop block, and the second inclined edge is used for being in contact with the stop block.

Preferably, the distance between the first stopper and the second stopper along the length direction of the long hole is 0.

(III) advantageous effects

Compared with the prior art, the special paddle bolt has the beneficial effects that:

due to the fact that the special first bevel edge structure and the special second bevel edge structure are arranged in the special paddle-shaped bolt, when the special paddle-shaped bolt is assembled, the limit position with the distance between the stop blocks being 0 can be adapted through bevel edge contact, particularly through design of bevel edge contact, the area of a contact area of the special paddle-shaped bolt and the structure (such as a cross beam) matched with the special paddle-shaped bolt is increased, the strength and the rigidity are increased, the reliability of bolt fastening is improved, the bolt is not prone to loosening, and even if the bolt is not prone to being separated from a long. In addition, when the special paddle bolt is applied to the cross beam, the manufactured cross beam does not need to be changed, the bolt manufacturing cost is much lower than that of the changed cross beam, the workload is much less, the repair speed is greatly improved, the field installation is very convenient, the effect is very obvious, and the cross beam needing to be overhauled is saved with the most convenient, quick and minimum cost from the improvement of the bolt structure.

Other advantageous effects of the present invention will be described in the detailed description section.

Drawings

The features and advantages of the present invention will be more clearly understood by reference to the accompanying drawings, which are illustrative and not to be construed as limiting the invention in any way, and in which:

FIG. 1 is a schematic structural view of a prior art T-bolt before installation;

FIG. 2 is a schematic structural view of a T-bolt of the prior art after installation;

FIG. 3 is a schematic plan view of a prior art T-bolt after installation;

FIG. 4 is a schematic structural view of another prior art T-bolt after installation;

FIG. 5 is a schematic plan view of a prior art T-bolt after installation when the distance between the stops is not ideal;

FIG. 6 is a perspective view of a specialized paddle bolt according to an embodiment of the present invention;

FIG. 7 is a side view of a specialized paddle bolt of an embodiment of the present invention;

FIG. 8 is a schematic view of the head of a specialized paddle bolt according to an embodiment of the present invention;

FIG. 9 is another side view of a specialized paddle bolt of an embodiment of the present invention;

FIG. 10 is a schematic view of the installation of a specialized paddle bolt according to an embodiment of the present invention;

FIG. 11 is another schematic view of the installation of a specialized paddle bolt according to an embodiment of the present invention;

fig. 12 is a sectional view of a bolt fitting structure according to an embodiment of the present invention;

fig. 13 is a partial perspective view of a bolt fitting structure according to an embodiment of the present invention;

FIG. 14 is a schematic perspective view of an inspection tool according to an embodiment of the present invention;

FIG. 15 is a schematic plan view of an inspection tool according to an embodiment of the present invention;

FIG. 16 is a side view of an inspection tool according to an embodiment of the present invention.

Description of reference numerals:

1. the structure of the bolt comprises a cross beam, 2, a long hole, 3, a T-shaped bolt, 4, a first stop block, 5, a second stop block, 6, a sieve plate, 7, a locknut, 8, a gasket, 9, a U-shaped plate, 10, a pore plate, 11, a bottom plate, 100, a head, 101, a first blade part, 102, a second blade part, 103, a first inclined edge, 104, a second inclined edge, 105, a first straight edge, 106, a second straight edge, 200 and a screw rod part.

The parts not marked in the figures do not relate to the core inventive point of the present invention and are therefore not marked one by one.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather should be construed as broadly as the present invention is capable of modification in various respects, all without departing from the spirit and scope of the present invention.

Referring to fig. 6 to 11, the present invention provides a special paddle bolt, including a head 100 and a screw portion 200 connected to the head 100, wherein a length direction central axis O of the head 100 is perpendicular to an axis O1 of the screw portion 200, the head 100 includes a first blade portion 101 and a second blade portion 102 extending opposite to each other along the length direction central axis O, the first blade has a first inclined edge 103 inclined with respect to the length direction central axis O on a first side of the length direction central axis O, the second blade has a second inclined edge 104 inclined with respect to the length direction central axis O on a second side of the length direction central axis O, the first inclined edge 103 gradually approaches the length direction central axis O toward a center of the head 100, and the second inclined edge 104 gradually approaches the length direction central axis O toward the center of the head 100. It is understood that the longitudinal central axis O has only two sides, and the first side and the second side thereof are two sides facing away from each other. And the first blade part 101 and the second blade part 102 are preferably symmetrically configured with respect to the center of the head part 100.

According to a preferred embodiment of the invention, the first blade has a first straight side 105 parallel to the longitudinal center axis O on a second side of the longitudinal center axis O, and the second blade has a second straight side 106 parallel to the longitudinal center axis O on a first side of the longitudinal center axis O. The present invention is not limited thereto and the first straight edge 105 and the second straight edge 106 may be replaced with other configurations as needed, including a form similar to a beveled edge.

According to a preferred embodiment of the invention, the first oblique edge 103 has an angle α greater than or equal to 18 ° with the first straight edge 105, and the second oblique edge 104 has an angle α greater than or equal to 18 ° with the second straight edge 106. It will be mentioned later that the special design with a of 18 deg. ensures that the angle beta of rotation of the special paddle bolt with respect to the installed slot 2 when in contact cooperation with the first 4 and second 5 stops (see below) is greater than 70 deg., thereby ensuring the stability of the installation of the special paddle bolt, one example of the diameter of the screw part 200 and the width of the head part 100 is 23mm, the thickness of the head part 100 is 21mm, of course, the specific length dimension parameters are not limited, and the core technical idea of the present invention is to design the special configuration of the first blade part 101 and the second blade part 102 with the first bevel edge 103 and the second bevel edge 104, the various detailed dimensional parameters of the special paddle bolt are that the special paddle bolt can meet the installation stability which is not easy to be separated when being applied to the installation structure with the first stop block 4 and the second stop block 5, and the dimensions of the parameters do not limit the invention. Moreover, the special paddle bolt can completely keep the same performance of the existing T-shaped bolt (35CrMo 10.9 grade), but the invention is not limited to the material.

According to an embodiment of the present invention, a surface of the head 100 facing away from the screw portion 200 forms a spherical surface. Specifically, the R45 spherical structure is formed in the thickness direction of the head 100. The present invention is obviously not limited thereto, and even if the solution of the spherical structure is not designed, the protection scope of the present invention is also supposed to fall.

On the basis of the special paddle bolt, referring to fig. 12 and 13, the invention further provides a bolt assembly structure, which includes a structure main body and the special paddle bolt, wherein the structure main body has a long hole 2, one side of the structure main body has a first stop block 4 and a second stop block 5, the first stop block 4 and the second stop block 5 are arranged at two sides of the long hole 2, the special paddle bolt is inserted into the long hole 2, the first inclined edge 103 contacts with the first stop block 4 to stop, and the second inclined edge 104 contacts with the second stop block 5 to stop, and specifically, the special paddle bolt can also be provided with a locknut 7 and a gasket 8, although the locknut 7 and the gasket 8 do not relate to the core of the invention, and are not described again here. Obviously, as can be seen from the above description of the special paddle bolt, the excellent mounting stability of the special paddle bolt in the bolt assembly structure is self-evident.

As a specific embodiment, referring to fig. 10, a distance L (not shown in fig. 10, but understood in conjunction with fig. 11) between the first stopper 4 and the second stopper 5 in the longitudinal direction of the elongated hole 2 is 0. The rotation angle of the special paddle bolt relative to the long hole 2 is larger than or equal to 70 degrees. Namely the first stop block 4 and the second stop block 5 are at the limit positions, and the special paddle bolt is not easy to be separated after being installed. Of course, the pitch L is not limited to 0, and extremes greater than 0 or even slightly less than 0 are possible, and a variety of pitch settings may be utilized within the scope of the present invention. The spacing of 0 is the limiting case, and usually the distance between the first stop 4 and the second stop 5 is slightly larger than zero, so that the rotation angle of the special paddle bolt is still larger than 70 degrees, and the special paddle bolt is safer and basically cannot be loosened after the nut is screwed down. In addition, even if the distance L between the first stopper 4 and the second stopper 5 is 25mm, as shown in fig. 11, the angle β of rotation of the dedicated paddle bolt with respect to the installed elongated hole 2 is 94 ° after installation, and the contact area between the dedicated paddle bolt and the cross beam 1 meets the working position requirement, which indicates that the dedicated paddle bolt is good in adaptability.

As a specific application, the structural body may be the cross beam 1, but of course, the structural body is not limited to the cross beam 1, and may be any suitable structural component as long as the special paddle bolt provided by the present invention can be installed, the cross beam 1 is installed with the screen plate 6 for mineral aggregate or flux classification through the special paddle bolt, the special paddle bolt may be tilted 45 degrees in advance and then "wound" into the long hole 2 during the specific installation, and when the bolt is inserted by the winding method, the head portion 100 may be chamfered 8 × 45 ° to prevent interference with the cross beam 1, but the present invention is not limited thereto, and the installation manner of the special paddle bolt and the specific shape of the head portion 100 may be modified as required.

The advantages of the invention to be explained are once again: the fixing measures of the sieve plate 6 are very important, once the sieve plate 6 falls off, the sieving function is disabled, and the sieve plate 6 falls into other parts and even causes great accidents of equipment. When the bolt cannot be in a normal working position due to the fact that the position of the stop block of the cross beam 1 is wrong, the common idea can only be to replace the cross beam 1, so that lost cost and great delay time are caused, the technical scheme is wide, the bolt structure is improved, and the bolt structure has the far-reaching significance: the manufactured beam 1 does not need to be changed, the cost of bolt manufacturing is much lower than that of the changed beam 1, the workload is much less, the repair speed is greatly improved, the field installation is very convenient, the effect is very obvious, the beam 1 needing to be overhauled is saved with the most convenient, quick and minimum cost from the improvement of the bolt structure, and the unique special bolt structure type and the size design have reference significance for similar structures in the future.

In addition, referring to fig. 14 to 16, the invention further provides an inspection tool applied to the special paddle bolt, wherein the inspection tool comprises a U-shaped plate 9 and a hole plate 10, each of which has a long hole 2, the U-shaped plate 9 is arranged on a bottom plate 11, the inner side of the U-shaped plate 9 faces the bottom plate 11, the inner side of the U-shaped plate 9 has a first stop 4 and a second stop 5, the bottom plate 11, the U-shaped plate 9, the hole plate 10, the first stop 4 and the second stop 5 can be welded, the first stop 4 and the second stop 5 are arranged on two sides of the long hole 2, the special paddle bolt is arranged in the long hole 2 in a penetrating manner to connect the U-shaped plate 9 and the hole plate 10, the first inclined edge 103 is used for contacting with the first stop 4, and the second inclined edge 104 is used for contacting with the second stop 5. Preferably, the distance between the first stopper 4 and the second stopper 5 in the longitudinal direction of the elongated hole 2 is 0. Similarly, specific changes and descriptions may be made with reference to the above description of the bolt assembly structure and will not be repeated here. The inspection tool can simulate the most unfavorable condition on site, specifically, the dimension L1 and the width D1 of a long hole 2 of a U-shaped plate 9 in the inspection tool can be 60 multiplied by 24(mm), but the inner height dimension H of the U-shaped plate 9 needs to consider the manufacturing deviation of the cross beam 1, according to the most unfavorable condition on site, the inner height dimension H is set to be 25mm, and the total height H0 of the U-shaped plate 9 and the orifice plate 10 is 50mm and is guaranteed to be unchanged (equivalent to the thickening of the orifice plate 10 by 5 mm). When the inspection tool is used for inspecting whether the bolt can pass through the inspection tool, the head 100 of the special paddle bolt is required to pass through the long hole 2 and to be wound into the inner side of the U-shaped plate 9, and the special paddle bolt can rotate by about 70 degrees after being rotated to be in contact with the first stop block 4 and the second stop block 5, so that the inspection tool is qualified. Obviously, these dimensional parameters can be adjusted appropriately according to actual needs, and are not intended to limit the present invention. The inspection tool is simple and direct in use, does not need to adopt an additional measuring tool to carry out multi-directional comprehensive measurement, reduces inspection time, improves inspection efficiency, and ensures the quality of the inspected bolt

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.

Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations fall within the scope defined by the appended claims.