A diesel generator base for preventing bolt loosening

Abstract

The utility model provides a diesel generator base of preventing bolt loose belongs to power generation equipment technical field. The utility model embodiment provides a diesel generator base of preventing bolt loose, only need to pass first bolt hole of first flange and third bolt hole of second flange in turn to first bolt, tighten first nut on the first screw rod of first bolt, and tighten second nut on the second screw rod of first bolt, make second nut screw and the one side of first nut away from head tightly butt after, again the limiting hole of locking piece is covered in the outside of first nut and second nut, finally through second bolt and third nut lock locking piece on first flange and / or first flange, utilize locking piece and lock first nut and second nut, prevent first nut and second nut and first bolt between loose and fall off, enhance the stability of first nut and second nut and first bolt connection in the vibration environment of diesel engine work.

Description

Technical Field

[0001] This utility model belongs to the field of power generation equipment technology, and in particular, relates to a diesel generator base for preventing bolts from loosening. Background Technology

[0002] Diesel generators, as portable power generation devices, have been widely used in various fields. Diesel generators typically use a base to support and secure the diesel engine and generator set, ensuring stable operation. Currently, the diesel engine is generally connected to the generator base via a threaded connection structure with bolts and nuts. However, due to the strong vibrations generated by the diesel engine during operation, the bolts and nuts are prone to loosening or even detaching under long-term vibration, affecting the stability of the connection between the diesel engine and the generator base and making it difficult to ensure the long-term efficient and stable operation of both the diesel engine and generator. Utility Model Content

[0003] Based on the above-mentioned problems in the prior art, the purpose of this utility model embodiment is to provide a diesel generator base that prevents bolts from loosening, so as to solve the technical problem in the prior art where the diesel engine and the diesel generator base are fixedly connected by bolts and nuts, and the bolts and nuts are prone to loosening or even falling off in a long-term vibration environment.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is: to provide a diesel generator base for preventing bolts from loosening, comprising: seat body; A first flange is fixedly mounted on the base body, and the first flange is provided with a plurality of first bolt holes; The second flange is used for welding to the diesel engine. The second flange is provided with a plurality of third bolt holes, which are arranged one-to-one with the first bolt holes. Multiple fastening assemblies are provided for fastening a second flange to a first flange. Each fastening assembly includes a first bolt, a first nut, and a second nut. The first bolt includes a head, a first threaded rod integrally formed with the head, and a second threaded rod coaxially arranged with the first threaded rod. The second threaded rod is integrally formed at the end of the first threaded rod away from the head. The diameter of the first threaded rod is larger than the diameter of the second threaded rod, and the thread direction of the first threaded rod is opposite to that of the second threaded rod. The internal thread of the first nut is adapted to the external thread of the first threaded rod, and the first nut is threadedly connected to the first threaded rod. The internal thread of the second nut is adapted to the external thread of the second threaded rod, and the second nut is threadedly connected to the second threaded rod, with the second nut in close contact with the side of the first nut opposite to the head. The anti-loosening component includes a locking member, a second bolt for locking the locking member to the first flange and / or the first flange, and a third nut adapted to the second bolt. The locking member is provided with a limiting hole for fitting around the outside of the first nut and the second nut to prevent the first nut and the second nut from rotating relative to each other.

[0005] Furthermore, the locking element is a locking ring, and a plurality of limiting holes are provided on one side of the locking ring at intervals along the circumference of the locking ring, and the limiting holes correspond one-to-one with the first bolt hole and / or the third bolt hole.

[0006] Furthermore, the locking element is a locking sleeve, and the sleeve hole of the locking sleeve constitutes the limiting hole.

[0007] Furthermore, the anti-loosening component also includes a positioning tube disposed in the limiting hole. When the limiting hole is fitted over the outside of the first nut and the second nut, the positioning tube can be fitted over the end of the second screw away from the first screw.

[0008] Furthermore, the anti-loosening component also includes a spring for elastically abutting the second nut toward the first nut. The spring is sleeved on the positioning tube and / or the second screw. One end of the spring can elastically abut against the side of the second nut away from the first nut, and the other end of the spring is fixedly connected to the locking member.

[0009] Furthermore, the locking member is provided with at least two third bolt holes, and the first flange and / or the first flange are respectively provided with fourth bolt holes at positions corresponding to the third bolt holes.

[0010] Furthermore, each of the fastening connection components also includes an elastic sleeve disposed between the first bolt and the first nut.

[0011] Furthermore, the elastic sleeve is a rubber component or a silicone component.

[0012] Furthermore, the first nut and the second nut have the same outer shape and size.

[0013] Furthermore, the limiting hole is a blind hole, and the side of the locking member with the blind hole is in contact with the side of the second flange that is away from the first flange.

[0014] Compared with the prior art, one or more technical solutions in the embodiments of this utility model have at least one of the following beneficial effects: The diesel generator base for preventing bolt loosening in this embodiment of the utility model only requires passing the first bolt through the first bolt hole of the first flange and the third bolt hole of the second flange in sequence, tightening the first nut on the first thread of the first bolt, and tightening the second nut on the second thread of the first bolt, so that the second nut and the side of the first nut facing away from the head are in close contact. Then, the limiting hole of the locking member is fitted onto the outside of the first nut and the second nut. Finally, the locking member is locked to the first flange and / or the first flange by the second bolt and the third nut. The locking member locks the first nut and the second nut, which can prevent the first nut and the second nut from rotating relative to each other. In addition, the thread direction of the first thread is opposite to that of the second thread, which can prevent the first nut and the second nut from rotating relative to the first bolt. This can effectively prevent the first nut and the second nut from loosening or even falling off from the first bolt, effectively enhancing the stability and reliability of the connection between the first flange and the second flange. Even in the vibration environment generated when the diesel engine is working, the first nut and the second nut are not easy to loosen or even fall off. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 A three-dimensional structural diagram of a diesel generator base for preventing bolt loosening provided in an embodiment of this utility model; Figure 2 for Figure 1 The diagram shows a cross-sectional view of the diesel generator base designed to prevent bolts from loosening. Figure 3 An assembly diagram of the fastening connection assembly and the anti-loosening assembly provided for embodiments of this utility model; Figure 4 An exploded view of the fastening connection assembly and the anti-loosening assembly provided in an embodiment of this utility model; Figure 5 A three-dimensional structural diagram of the fastening connection assembly provided in an embodiment of this utility model; Figure 6 Exploded view of the fastening connection assembly provided in the embodiment of this utility model Figure 7 A three-dimensional structural diagram of a diesel generator base for preventing bolt loosening, provided as another embodiment of the present invention; Figure 8 for Figure 7The diagram shows a cross-sectional view of the diesel generator base designed to prevent bolts from loosening. Figure 9 An assembly diagram of a fastening connection assembly and an anti-loosening assembly provided for another embodiment of the present utility model; Figure 10 This is a cross-sectional view of the fastening connection component and the anti-loosening component during assembly, as provided in another embodiment of the present invention. Figure 11 A three-dimensional structural schematic diagram of a locking member provided in another embodiment of this utility model.

[0017] The following are the labeling elements in the figure: 1-Base; 2-First flange; 3-Second flange; 4-Fastening connection assembly; 41-First bolt; 411-Head; 412-First threaded rod; 413-Second threaded rod; 42-First nut; 43-Second nut; 44-Elastic sleeve; 5-Anti-loosening component; 51-Locking component; 511-Limiting hole; 512-Third bolt hole; 52-Second bolt; 53-Third nut; 54-Positioning tube; 55-Spring; 6- Diesel engine. Detailed Implementation

[0018] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0019] It should be noted that when an element is referred to as "connected to" or "set on" another element, it can be directly on or indirectly on the other element. When an element is referred to as "connected to" another element, it can be directly connected to or indirectly connected to the other element. Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," "third," and "fourth" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "attached" should be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or a connection within two elements or an interaction between two elements. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0020] Throughout this specification, reference to "an embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment is included in at least one embodiment of this application. Therefore, the phrases "in one embodiment," "in some embodiments," or "in some of these embodiments" appear in various places throughout the specification, and not all refer to the same embodiment. Furthermore, in one or more embodiments, particular features, structures, or characteristics may be combined in any suitable manner.

[0021] Please refer to the following: Figures 1 to 11 The diesel generator base for preventing bolt loosening provided in this embodiment of the utility model will now be described. Please refer to the following for further details. Figure 1 , Figure 2 and Figure 3 The diesel generator base for preventing bolt loosening provided in this embodiment includes a base body 1, a first flange 2, a second flange 3, multiple fastening connection components 4, and an anti-loosening component 5. The first flange 2 is fixedly mounted on the base body 1 by welding. The first flange 2 has multiple first bolt holes, which are evenly spaced along the circumference of the first flange 2. The second flange 3 is welded to the diesel engine 6 of the diesel generator. The second flange 3 has multiple second bolt holes, which are evenly spaced along the circumference of the second flange 3, and the second bolt holes correspond one-to-one with the first bolt holes. Please refer to further details. Figure 4 , Figure 5 and Figure 6 Multiple fastening connection components 4 are used to fasten the second flange 3 to the first flange 2. Each fastening connection component 4 includes a first bolt 41, a first nut 42, and a second nut 43. The first bolt 41 includes a head 411, a first thread 412 integrally formed with the head 411, and a second thread 413 coaxially arranged with the first thread 412. The second thread 413 is integrally formed at the end of the first thread 412 away from the head 411. The diameter of the first thread 412 is larger than the diameter of the second thread 413, and the thread direction of the first thread 412 is opposite to that of the second thread 413. The internal thread of the first nut 42 is adapted to the external thread of the first thread 412, and the first nut 42 is threadedly connected to the first thread 412. The internal thread of the second nut 43 is adapted to the external thread of the second thread 413, and the second nut 43 is threadedly connected to the second thread 413. The second nut 43 is in close contact with the side of the first nut 42 away from the head 411. The anti-loosening assembly 5 includes a locking member 51, a second bolt 52, and a third nut 53. The second bolt 52 locks the locking member 51 onto the first flange 2 and / or the first flange 2. The third nut 53 is adapted to the second bolt 52. The locking member 51 has a limiting hole 511 for fitting around the first nut 42 and the second nut 43 to prevent relative rotation between the first nut 42 and the second nut 43. It should be noted that the shape and size of the limiting hole 511 are consistent with the outer contour shape and size of the first nut 42 and the second nut 43. For example, when the outer contour of the first nut 42 and the second nut 43 is a hexagonal prism, the shape of the limiting hole 511 is also a hexagonal prism. When the first nut 42 and the second nut 43 are located in the limiting hole 511 on the locking member 51, the inner sidewall of the limiting hole 511 is in close contact with the outer peripheral surface of the first nut 42 and the second nut 43. The limiting hole 511 on the locking member 51 can limit the first nut 42 and the second nut 43, so that the first nut 42 and the second nut 43 cannot rotate circumferentially relative to the locking member 51, and the first nut 42 and the second nut 43 cannot rotate relative to each other.

[0022] In use, simply align the first bolt holes on the first flange 2 with the second bolt holes on the second flange 3, pass each first bolt 41 through the first bolt hole and the corresponding second bolt hole, then thread a first nut 42 onto the first thread 412 of each first bolt 41, tighten the first nut 42, and thread a second nut 43 onto the second thread 413 of each first bolt 41, tighten the second nut 43 so that the second nut 43 is in close contact with the side of the first nut 42 away from the head 411. Then, fit the limiting hole 511 of the locking member 51 onto the outside of the first nut 42 and the second nut 43, and lock the locking member 51 onto the first flange 2 and / or the first flange 2 by the second bolt 52 and the third nut 53, so that the locking member 51 can lock the first nut 42. The first nut 42 is locked to the second nut 43 to prevent relative rotation between the first nut 42 and the second nut 43. In addition, the thread direction of the first screw 412 is opposite to that of the thread direction of the second screw 413, which can prevent the first nut 42 and the second nut 43 from rotating relative to the first bolt 41. This can effectively prevent the first nut 42 and the second nut 43 from loosening or even falling off with the first bolt 41, and effectively enhance the stability and reliability of the fastening connection assembly 4 in fastening the first flange 2 and the second flange 3. Even in the vibration environment generated when the first nut 42 and the second nut 43 are working, they are not easy to loosen or even fall off, thereby improving the stability of the connection between the diesel engine 6 of the diesel generator and the base 1, and ensuring the long-term efficient and stable operation of the diesel engine 6 of the diesel generator.

[0023] Please refer to the following: Figure 1 , Figure 2 and Figure 4 In some embodiments, the locking element 51 is a locking ring, with multiple limiting holes 511 spaced circumferentially on one side of the locking ring. Each limiting hole 511 corresponds one-to-one with a first bolt hole and / or a second bolt hole. In this embodiment, the locking element 51 is configured as a locking ring that matches the second flange 3. Simply fitting the multiple limiting holes 511 on the locking ring onto the first nut 42 and second nut 43 of each fastening connection assembly 4 completes the locking operation of the first nut 42 and second nut 43 of each fastening connection assembly 4 in one operation. This prevents the first nut 42 and second nut 43 of each fastening connection assembly 4 from loosening or falling off relative to the corresponding first bolt 41, making the operation efficient and convenient. Furthermore, during disassembly, simply releasing the fastening connection of the second bolt 52 and third nut 53 to the locking ring releases the locking element 51 from locking the first nut 42 and second nut 43 of each fastening connection assembly 4 in one operation.

[0024] Please refer to the following: Figure 7 , Figure 9 , Figure 10 and Figure 11In some embodiments, the locking member 51 is a locking sleeve, and the sleeve hole of the locking sleeve constitutes a limiting hole 511. In this embodiment, the locking member 51 is set as an independent locking sleeve. The sleeve hole of the locking sleeve is simply fitted over the outside of the first nut 42 and the second nut 43, and the locking member 51 is locked to the first flange 2 and / or the first flange 2 by the second bolt 52 and the third nut 53. This allows the locking member 51 to lock the first nut 42 and the second nut 43, preventing relative rotation between them. Furthermore, the thread direction of the first screw 412 is opposite to that of the second screw 413, preventing relative rotation between the first nut 42 and the second nut 43 and the first bolt 41. This effectively prevents loosening or even detachment of the first nut 42 and the second nut 43 from the first bolt 41. It should be noted that the locking sleeve has at least two third bolt holes 512 for the second bolt 52 to pass through, and the first flange 2 and / or the first flange 2 have fourth bolt holes corresponding to the positions of the second bolt holes.

[0025] Please refer to the following: Figure 8 , Figure 10 and Figure 11 In some embodiments, the anti-loosening component 5 further includes a positioning tube 54 disposed in the limiting hole 511. When the limiting hole 511 is fitted over the outside of the first nut 42 and the second nut 43, the positioning tube 54 can be fitted over the end of the second screw 413 away from the first screw 412, thereby enhancing the stability of the locking member 51 in locking the first nut 42 and the second nut 43.

[0026] Please refer to the following: Figure 5 , Figure 8 and Figure 10 In some embodiments, the anti-loosening component 5 further includes a spring 55 for elastically abutting the second nut 43 toward the first nut 42. The spring 55 is sleeved on the positioning tube 54 and / or the second screw 413. One end of the spring 55 can elastically abut against the side of the second nut 43 opposite to the first nut 42, and the other end of the spring 55 is fixedly connected to the locking member 51. In this embodiment, when the locking member 51 is fastened to the first flange 2 and / or the second flange 3 by the threaded engagement of the second bolt 52 and the third nut 53, the spring 55 is compressed and elastically abuts the second nut 43 toward the first nut 42, making the first nut 42 and the second nut 43 in close contact, increasing the friction between the first nut 42 and the second nut 43, and further reducing the possibility of the first nut 42 and the second nut 43 loosening. Furthermore, when the third nut 53 is unscrewed from the second bolt 52, the locking member 51 can be pushed away from the second flange 3 by the elastic force of the spring 55, so that the limiting hole 511 of the locking member 51 can be quickly disengaged from the first nut 42 and the second nut 43, and the first nut 42 and the second nut 43 can be easily disassembled later.

[0027] Please refer to the following: Figure 9 , Figure 10 and Figure 11 In some embodiments, the locking member 51 is provided with at least two third bolt holes 512, and the first flange 2 and / or the first flange 2 are respectively provided with fourth bolt holes at the positions corresponding to the second bolt holes. The locking member 51 can be fastened to the second flange 3 by simply passing the second bolt 52 through the third bolt hole 512 and the fourth bolt hole in sequence, and then tightening the third nut 53 on the second bolt 52.

[0028] Please refer to the following: Figure 5 , Figure 6 and Figure 10 In some embodiments, each fastening assembly 4 further includes an elastic sleeve 44 disposed between the first bolt 41 and the first nut 42. During the tightening of the second nut 43 onto the second thread 413 of the first bolt 41, the elastic sleeve 44 can be compressed. When compressed, the elastic sleeve 44 can press against the first nut 42 and the second nut 43 at both ends along the axial direction of the first bolt 41, thereby enhancing the anti-loosening effect of the first nut 42 and the second nut 43. It should be noted that the elastic sleeve 44 is a rubber or silicone component.

[0029] Please refer to the following: Figure 4 , Figure 5 , Figure 9 and Figure 10 In some embodiments, the outer shapes and sizes of the first nut 42 and the second nut 43 are the same, and the outer shapes of the first nut 42 and the second nut 43 are both hexagonal prisms.

[0030] Please refer to the following: Figure 1 , Figure 2 , Figure 7 and Figure 8 In some embodiments, the limiting hole 511 is a blind hole, and the side of the locking member 51 with the blind hole fits against the side of the second flange 3 that is away from the first flange 2, so that the first nut 42 and the second nut 43 can play a protective and dustproof role.

[0031] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A diesel generator base for preventing bolt loosening, characterized in that, include: seat body; A first flange is fixedly mounted on the base body, and the first flange is provided with a plurality of first bolt holes; The second flange is used for welding to the diesel engine. The second flange is provided with a plurality of third bolt holes, which are arranged one-to-one with the first bolt holes. Multiple fastening assemblies are provided for fastening a second flange to a first flange. Each fastening assembly includes a first bolt, a first nut, and a second nut. The first bolt includes a head, a first threaded rod integrally formed with the head, and a second threaded rod coaxially arranged with the first threaded rod. The second threaded rod is integrally formed at the end of the first threaded rod away from the head. The diameter of the first threaded rod is larger than the diameter of the second threaded rod, and the thread direction of the first threaded rod is opposite to that of the second threaded rod. The internal thread of the first nut is adapted to the external thread of the first threaded rod, and the first nut is threadedly connected to the first threaded rod. The internal thread of the second nut is adapted to the external thread of the second threaded rod, and the second nut is threadedly connected to the second threaded rod, with the second nut in close contact with the side of the first nut opposite to the head. The anti-loosening component includes a locking member, a second bolt for locking the locking member to the first flange and / or the first flange, and a third nut adapted to the second bolt. The locking member is provided with a limiting hole for fitting around the outside of the first nut and the second nut to prevent the first nut and the second nut from rotating relative to each other.

2. The diesel generator base for preventing loosening of bolts according to claim 1, wherein The locking element is a locking ring, and a plurality of limiting holes are provided on one side of the locking ring along the circumference of the locking ring. The limiting holes correspond one-to-one with the first bolt hole and / or the third bolt hole.

3. The diesel generator base to prevent bolt loosening according to claim 1, wherein, The locking element is a locking sleeve, and the sleeve hole of the locking sleeve constitutes the limiting hole.

4. The diesel generator base to prevent bolt loosening according to claim 1, wherein The anti-loosening component also includes a positioning tube disposed in the limiting hole. When the limiting hole is fitted over the outside of the first nut and the second nut, the positioning tube can be fitted over the end of the second screw away from the first screw.

5. The diesel generator base to prevent bolt loosening according to claim 4, wherein The anti-loosening component also includes a spring for elastically abutting the second nut toward the first nut. The spring is sleeved on the positioning tube and / or the second screw. One end of the spring can elastically abut against the side of the second nut away from the first nut, and the other end of the spring is fixedly connected to the locking member.

6. The diesel generator base to prevent bolt loosening according to claim 5, wherein The locking component is provided with at least two third bolt holes, and the first flange and / or the first flange are respectively provided with fourth bolt holes at positions corresponding to the third bolt holes.

7. The diesel generator base to prevent bolt loosening according to claim 1, wherein Each of the fastening connection components further includes an elastic sleeve disposed between the first bolt and the first nut.

8. The diesel generator base to prevent bolt loosening according to claim 7, wherein The elastic sleeve is made of rubber or silicone.

9. The diesel generator base to prevent bolt loosening according to claim 1, wherein, The first nut and the second nut have the same outer shape and size.

10. The diesel generator base for preventing loosening of bolts according to any one of claims 1 to 9, characterized in that, The limiting hole is a blind hole, and the side of the locking member with the blind hole is in contact with the side of the second flange that is away from the first flange.

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