CN219221010U

CN219221010U - Bolt for turbo-charged engine capable of reducing local stress

Info

Publication number: CN219221010U
Application number: CN202223584017.5U
Authority: CN
Inventors: 李国良
Original assignee: Suzhou Zhaowuyi Precision Hardware Co ltd
Current assignee: Suzhou Zhaowuyi Precision Hardware Co ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-06-20
Anticipated expiration: 2032-12-30

Abstract

A kind of turbo-charged engine which reduces the local stress uses the bolt, including bolt, locking ring, spring; the end part of one end of the anti-loose ring is provided with a flange, and the end face of the other end of the anti-loose ring is provided with a spring mounting groove. The spring end is installed in the spring mounting groove of the locking ring and then is installed on the bolt, so that when the bolt is installed on the turbocharged engine, the locking effect is good through deformation of the spring, and therefore local stress received in the reuse process of the bolt is effectively reduced, and the service life of the whole bolt is greatly prolonged.

Description

Bolt for turbo-charged engine capable of reducing local stress

Technical Field

The utility model relates to the field of bolts, in particular to a bolt for a turbocharged engine, which reduces local stress.

Background

The connection of the turbocharged engine can be achieved through bolts, the standard bolts comprise bolt heads and studs which are connected in sequence, and locking connection work is conducted through threads on the bolts and threaded holes on corresponding fixtures. However, in the long-term use process, vibration conditions and the like in the use process of the turbocharged engine, the stud and the threaded hole of the bolt rotate reversely, a loosening phenomenon occurs, once the loosening phenomenon occurs, if the part is not fastened again, the repeated stress can cause the bolt to bear excessive load, so that the bolt deforms or even is damaged, and the normal use of the turbocharged engine is finally affected, and adverse effects are caused.

Disclosure of Invention

The utility model aims to: the utility model aims to provide a bolt for a turbocharged engine, which can reduce local stress and solve the problems existing in the use process of the bolt.

The technical scheme is as follows: the utility model provides a bolt for a turbo-charged engine for reducing local stress, which comprises a bolt, a locking ring and a spring, wherein the spring and the locking ring are sequentially arranged on the bolt; the end part of one end of the anti-loose ring is provided with a flange, and the end face of the other end of the anti-loose ring is provided with a spring mounting groove. The spring end is installed in the spring mounting groove of the locking ring and then is installed on the bolt, so that when the bolt is installed on the turbocharged engine, the locking effect is good through deformation of the spring, and therefore local stress received in the reuse process of the bolt is effectively reduced, and the service life of the whole bolt is greatly prolonged.

Further, an internal thread is arranged inside the locking ring.

Further, the bolt comprises a bolt head, a connecting section, a transition section and a stud section, and the bolt head, the connecting section, the transition section and the stud section are sequentially connected.

Further, the outer diameter of the bolt head is larger than that of the flange of the anti-loose ring.

Further, the outer diameter of the connecting section is smaller than that of the stud section.

Further, the screw pitch of the stud section is the same as the screw pitch of the internal thread of the anti-loose ring.

Furthermore, the connection parts of the connecting section, the bolt head and the transition section are all provided with round corners. The local stress of the bolt in use is effectively reduced.

The technical scheme can be seen that the utility model has the following beneficial effects: 1) The bolt with the anti-loosening ring and the spring is arranged, so that the anti-loosening device plays a certain anti-loosening role when being used on the turbocharged engine, thereby effectively reducing the local stress suffered by the bolt, prolonging the service life of the bolt and ensuring the normal operation of the turbocharged engine; 2) Simple structure, easy dismounting, wide applicability.

Drawings

FIG. 1 is an exploded perspective view of the present utility model;

FIG. 2 is a cross-sectional view of the lockring;

FIG. 3 is a front view of the bolt;

fig. 4 is a cross-sectional view of the utility model at the time of installation.

In the figure: bolt 1, bolt head 11, connecting section 12, changeover portion 13, double-screw bolt section 14, locking ring 2, flange 21, spring mounting groove 22, internal screw thread 23, spring 3, engine part one 4, engine part two 5.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more, unless otherwise clearly defined.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

Example 1

The anti-loosening device is shown in a perspective view in FIG. 1, and comprises a bolt 1, an anti-loosening ring 2 and a spring 3, wherein the spring 3 and the anti-loosening ring 2 are sequentially arranged on the bolt 1; the cross-sectional view of the locking ring 2 is shown in fig. 2, one end of the locking ring is provided with a flange 21, and the other end face of the locking ring 2 is provided with a spring mounting groove 22. The bolt 1, the anti-loose ring 2 and the spring 3 are made of stainless steel materials, so that the influence on the service life caused by the occurrence of rust and other conditions in the use process is avoided.

The inner part of the locking ring 2 is provided with an internal thread 23.

Fig. 3 shows a front view of the bolt 1, which includes a bolt head 11, a connecting section 12, a transition section 13, and a stud section 14, wherein the bolt head 11, the connecting section 12, the transition section 13, and the stud section 14 are sequentially connected.

The outer diameter of the bolt head 11 is larger than that of the flange 21 of the locking ring 2.

The outer diameter of the connecting section 12 is smaller than the outer diameter of the stud section 14.

The screw pitch of the stud segment 14 is the same as the screw pitch of the internal thread 21 of the locking ring 2.

The joints of the connecting section 12, the bolt head 11 and the transition section 13 are respectively provided with a round angle. The local stress of the bolt in use is effectively reduced.

The application method of the utility model is as follows:

1) One end of the spring 3 is installed in a spring installation groove 22 at the end of the anti-loose ring 2;

2) The anti-loose ring 2 with the spring 3 is arranged on the bolt 1, and the anti-loose ring 2 moves towards the bolt head 11 along the stud section 14 through the internal thread 23 of the anti-loose ring 2 until the anti-loose ring 2 can move in the transition section 13 and the connecting section 12;

3) Placing the engine part I4 to be fixed on the engine part II 5, wherein a countersunk hole on the engine part I4 corresponds to a threaded hole of the engine part II 5;

4) The stud segments 14 of the bolts 1 in the step 3) are all locked into threaded holes of the engine part two 5, at this time, the flange 21 of the locking ring 2 is pressed against the connecting surface of the large hole and the small hole of the counter bore on the engine part one 4, and at this time, the springs 3 are pressed between the locking ring 2 and the bolt head 11 under the action of the locking ring 2, as shown in fig. 4.

Through the arrangement of the spring 3 and the anti-loosening ring 2, the bolt 1 has a good anti-loosening effect, so that the local stress of the bolt 1 on the turbocharger is effectively reduced in the use process of the turbocharger, the service life of the bolt 1 is prolonged, the service life of the turbocharger is greatly prolonged, and the turbocharger has wide applicability.

The foregoing is merely a preferred embodiment of the utility model, and it should be noted that modifications could be made by those skilled in the art without departing from the principles of the utility model, which modifications would also be considered to be within the scope of the utility model.

Claims

1. A bolt for a turbocharged engine that reduces localized stresses, characterized by: the anti-loosening device comprises a bolt (1), an anti-loosening ring (2) and a spring (3), wherein the spring (3) and the anti-loosening ring (2) are sequentially arranged on the bolt (1); the anti-loose ring (2) is characterized in that a flange (21) is arranged at one end of the anti-loose ring (2), and a spring mounting groove (22) is formed in the end face of the other end of the anti-loose ring (2).

2. The local stress reducing bolt for a turbocharged engine of claim 1, wherein: an internal thread (23) is arranged in the anti-loose ring (2).

3. The local stress reducing bolt for a turbocharged engine of claim 2, wherein: the bolt (1) comprises a bolt head (11), a connecting section (12), a transition section (13) and a stud section (14), wherein the bolt head (11), the connecting section (12), the transition section (13) and the stud section (14) are sequentially connected.

4. A bolt for a turbo charged engine for reducing local stress according to claim 3, wherein: the outer diameter of the bolt head (11) is larger than that of the flange (21) of the anti-loose ring (2).

5. A bolt for a turbo charged engine for reducing local stress according to claim 3, wherein: the outer diameter of the connecting section (12) is smaller than that of the stud section (14).

6. A bolt for a turbo charged engine for reducing local stress according to claim 3, wherein: the screw pitch of the stud segment (14) is the same as the screw pitch of the internal thread (23) of the anti-loose ring (2).

7. A bolt for a turbo charged engine for reducing local stress according to claim 3, wherein: and the joints of the connecting section (12) and the bolt head (11) and the transition section (13) are respectively provided with a round angle.