Synchronous noise reduction structure of turbocharger rotor

Abstract

The utility model discloses a turbocharger rotor synchronous noise reduction structure which comprises two synchronous noise reduction structures which are externally connected to a rotor structure. The synchronous noise reduction structure is coaxially arranged, the synchronous noise reduction structure comprises an outer ring and an inner ring, the inner ring is located on the inner side of the outer ring and coaxially arranged, and the inner ring and the outer ring are fixedly connected; the outer ring is provided with an outer ring body section and an outer ring extending section, the outer ring extending section is located at the tail end of the outer ring body section, and the outer ring extending section and the outer ring body section are integrally formed. The turbocharger rotor synchronous noise reduction structure has the advantages that the two rotor structures keep high coaxiality, deviation of the relative positions of the rotor structures located on the two sides is avoided, abrasion is controlled within a reasonable range, and correspondingly noise is controlled within a reasonable range.

Description

Technical Field

[0001] The utility model belongs to the field of turbochargers, and in particular relates to a synchronous noise reduction structure of a turbocharger rotor. Background Art

[0002] The announcement number is CN216110980U, and the subject name is a utility model patent for a synchronous noise reduction structure for a turbocharger rotor. Its IPC classification number is F02B39 / 00. Its technical solution discloses "using multiple sets of telescopic springs 501 to increase the elasticity of the inner wall of the housing 2 to prevent the turbocharger from moving significantly during operation. At the same time, the limit plate 502 supports and fixes the turbocharger to prevent shaking during operation. The elasticity of the outer side of the limit plate 502 is enhanced by multiple sets of rubber sacs 503 to provide shock absorption and buffering for the running turbocharger."

[0003] This shows that the above utility model patents have disclosed one technical solution for a synchronous noise reduction structure for turbocharger rotors. However, the technical solution disclosed in the above utility model patents focuses on enhancing protection and rapid heat dissipation, and does not further address issues such as improving the coaxiality of the rotor structure. Further improvement is needed. Utility Model Content

[0004] The utility model aims at the existing technical situation, overcomes the above-mentioned defects, and provides a synchronous noise reduction structure for a turbocharger rotor.

[0005] The utility model adopts the following technical solution: a synchronous noise reduction structure for a turbocharger rotor, comprising two synchronous noise reduction structures, which are externally connected to the rotor structure, wherein:

[0006] The synchronous noise reduction structure is coaxially arranged, and the synchronous noise reduction structure includes an outer ring and an inner ring, the inner ring is located on the inner side of the outer ring and is coaxially arranged, and the inner ring is fixedly connected to the outer ring;

[0007] The outer ring is provided with an outer ring main section and an outer ring extension section, wherein the outer ring extension section is located at the end of the outer ring main section, and the outer ring extension section and the outer ring main section are integrally formed;

[0008] The outer ring extension section has an outer ring space, and a fixing part is built into the outer ring space. The fixing part is fixedly connected to the outer ring extension section. A fixing rod is provided between the fixing parts on both sides. One end of the fixing rod is stopped at the fixing part on one side, and the other end of the fixing rod is sleeved with a positioning nut and passes through the fixing part on the other side. The positioning nut abuts against the outer ring extension section.

[0009] As a preferred technical solution of the above technical solution, the inner ring has an inner ring groove, and the rotor structure is clamped in the inner ring groove.

[0010] As a preferred technical solution of the above technical solution, the inner ring is provided with a first inner ring segment, a second inner ring segment and a third inner ring segment, there is an inner ring gap between the first inner ring segment and the second inner ring segment, there is an inner ring gap between the second inner ring segment and the third inner ring segment, and there is an inner ring gap between the first inner ring segment and the third inner ring segment.

[0011] As a preferred technical solution of the above technical solutions, the first inner ring segment is provided with an inner ring body and inner ring side portions located on both sides of the inner ring body, and the inner ring side portions are integrally formed with the inner ring body.

[0012] As a preferred technical solution of the above technical solution, the fixing piece has a weight-reducing hole.

[0013] The turbocharger rotor synchronous noise reduction structure disclosed by the utility model has the beneficial effect that the two rotor structures maintain a high coaxiality, avoids the relative position deviation of the rotor structures on both sides, controls the wear within a reasonable range, and correspondingly controls the noise within a reasonable range. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a perspective view of the turbocharger of the present application.

[0015] Figure 2 It is a three-dimensional diagram from one perspective of the core and synchronous noise reduction structure of the turbocharger of the present application.

[0016] Figure 3 This is a three-dimensional diagram of the core and synchronous noise reduction structure of the turbocharger of the present application from another perspective.

[0017] Figure 4 It is a three-dimensional diagram from one perspective of the synchronous noise reduction structure of the turbocharger of the present application.

[0018] Figure 5 It is a three-dimensional diagram from another perspective of the synchronous noise reduction structure of the turbocharger of the present application.

[0019] Figure 6 yes Figure 4 A partial enlarged view of area A.

[0020] Figure 7 yes Figure 5 A partial enlarged view of area B.

[0021] Figure 8 yes Figure 4 A local magnified view of area C.

[0022] Figure 9 yes Figure 5 A partial enlarged view of area D.

[0023] The reference numerals include: 1-turbocharger; 2-movement; 3-rotor structure; 100-synchronous noise reduction structure; 110-outer ring; 111-outer ring main section; 112-outer ring extension section; 113-outer ring space; 120-inner ring; 121-inner ring groove; 122-inner ring gap; 123-first inner ring section; 124-second inner ring section; 125-third inner ring section; 126-inner ring side; 127-inner ring main body; 130-fixing part; 131-weight reduction hole; 140-fixing rod; 150-positioning nut. DETAILED DESCRIPTION

[0024] The utility model discloses a turbocharger rotor synchronous noise reduction structure, which is described in conjunction with the preferred embodiment (Example 1) and the accompanying drawings. Figures 1 to 9 , the specific implementation methods of the utility model are further described.

[0025] See attached figure Figures 1 to 9 , Figure 1 shows the overall structure of the turbocharger, Figure 2 and Figure 3 The movement and synchronous noise reduction structure are shown at different viewing angles. Figure 4 and Figure 5 The synchronous noise reduction structure at different viewing angles is shown. Figures 6 to 9 The local structures of the synchronous noise reduction structure are shown respectively.

[0026] Example 1.

[0027] Preferably, the turbocharger rotor synchronous noise reduction structure includes (two) synchronous noise reduction structures 100, the (two) synchronous noise reduction structures 100 are (respectively) built into the turbocharger 1, the turbocharger 1 includes a core 2, the core 2 includes two rotor structures 3, and the (two) synchronous noise reduction structures 100 are (respectively) externally connected to the rotor structure 3, wherein:

[0028] The (two) synchronous noise reduction structures 100 are coaxially arranged to ensure the coaxiality of the (two) synchronous noise reduction structures 100 themselves, and based on this, improve the coaxiality of the (two) rotor structures 3;

[0029] The synchronous noise reduction structure 100 includes an outer ring 110 and an inner ring 120 . The inner ring 120 is located inside the outer ring 110 and is coaxially arranged. (Most of) the inner ring 120 is fixedly connected to (most of) the outer ring 110 .

[0030] The outer ring 110 includes an outer ring main section 111 and (two) outer ring extension sections 112. The outer ring extension sections 112 are located at the ends of the outer ring main section 111. The outer ring extension sections 112 and the outer ring main section 111 are integrally formed.

[0031] The outer ring extension section 112 has an outer ring space 113, and (each) outer ring space 113 has (one) fixing member 130 built in. The fixing member 130 is fixedly connected to the outer ring extension section 112. A fixing rod 140 is provided between the fixing members 130 on both sides. One end of the fixing rod 140 is terminated at the fixing member 130 on one side (and is fixedly connected to the fixing member 130 on that side). The other end of the fixing rod 140 is sleeved with a positioning nut 150 and (this end of the fixing rod 140) passes through the other end. On one side, the fixing member 130 and the positioning nut 150 abut against the outer ring extension 112. Adjusting the relative position of the positioning nut 150 and the fixing rod 140, and thereby adjusting the inner ring gap 122 between the first inner ring segment 123 and the third inner ring segment 125, allows for fine-tuning of the coaxiality of the two rotor structures 3. This prevents deterioration in the coaxiality of the rotor structures 3 from causing relative positional deviation between the two rotor structures 3, which in turn leads to increased wear and noise. Conversely, maintaining high coaxiality between the two rotor structures 3 prevents relative positional deviation between the two rotor structures 3, keeps wear within a reasonable range, and accordingly, keeps noise within a reasonable range.

[0032] The inner ring 120 has an inner ring groove 121 , and the rotor structure 3 is engaged with the inner ring groove 121 , so that the inner ring 120 can firmly constrain the rotor structure 3 .

[0033] Among them, the inner ring 120 is provided with a first inner ring segment 123, a second inner ring segment 124 and a third inner ring segment 125, an inner ring gap 122 is provided between the first inner ring segment 123 and the second inner ring segment 124, an inner ring gap 122 is provided between the second inner ring segment 124 and the third inner ring segment 125, and an inner ring gap 122 is provided between the first inner ring segment 123 and the third inner ring segment 125; so that the tension between the first inner ring segment 123 and the second inner ring segment 124 can be adjusted through the inner ring gap 122, and the tension between the second inner ring segment 124 and the third inner ring segment 125 can be adjusted through the inner ring gap 122.

[0034] Among them, the first inner ring segment 123 is provided with an inner ring body 127 and inner ring side portions 126 located on both sides of the inner ring body 127, and the inner ring side portions 126 are integrally formed with the inner ring body 127; so that the inner ring body 127 and the inner ring side portions 126 located on both sides are combined to form an inner ring groove 121; the second inner ring segment 124 and the third inner ring segment 125 are similar, and will not be repeated.

[0035] The fixing member 130 has a weight-reducing hole 131 .

[0036] It should be noted that the size of the synchronous noise reduction structure 100 can be adaptively adjusted according to the size of the rotor structure 3 . In this embodiment, the two synchronous noise reduction structures 100 have different sizes so as to match rotor structures 3 of different sizes.

[0037] It is worth mentioning that the specific structure and other technical features of the rotor structure 3 involved in this utility model patent application should be regarded as prior art. The specific structure, working principle and possible control method and spatial layout method of these technical features can be selected by conventional means in the field and should not be regarded as the inventive point of this utility model patent. This utility model patent will not be further elaborated.

[0038] For those skilled in the art, it is still possible to modify the technical solutions described in the aforementioned embodiments, or to replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model should be included in the scope of protection of the present utility model.

Claims

1. A turbocharger rotor synchronous noise reduction structure, characterized in that: It includes two synchronous noise reduction structures, which are externally connected to the rotor structure, wherein: The synchronous noise reduction structure is coaxially arranged, and the synchronous noise reduction structure includes an outer ring and an inner ring, the inner ring is located on the inner side of the outer ring and is coaxially arranged, and the inner ring is fixedly connected to the outer ring; The outer ring is provided with an outer ring main section and an outer ring extension section, wherein the outer ring extension section is located at the end of the outer ring main section, and the outer ring extension section and the outer ring main section are integrally formed; The outer ring extension section has an outer ring space, and a fixing part is built into the outer ring space. The fixing part is fixedly connected to the outer ring extension section. A fixing rod is provided between the fixing parts on both sides. One end of the fixing rod is stopped at the fixing part on one side, and the other end of the fixing rod is sleeved with a positioning nut and passes through the fixing part on the other side. The positioning nut abuts against the outer ring extension section.

2. The turbocharger rotor synchronous noise reduction structure according to claim 1, characterized in that: The inner ring has an inner ring groove, and the rotor structure is clamped in the inner ring groove.

3. The turbocharger rotor synchronous noise reduction structure according to claim 1, characterized in that: The inner ring is provided with a first inner ring segment, a second inner ring segment and a third inner ring segment. There is an inner ring gap between the first inner ring segment and the second inner ring segment, there is an inner ring gap between the second inner ring segment and the third inner ring segment, and there is an inner ring gap between the first inner ring segment and the third inner ring segment.

4. The turbocharger rotor synchronous noise reduction structure according to claim 3, characterized in that: The first inner ring segment is provided with an inner ring main body and inner ring side portions located on both sides of the inner ring main body, and the inner ring side portions are integrally formed with the inner ring main body.

5. The turbocharger rotor synchronous noise reduction structure according to claim 1, characterized in that: The fixing piece has a lightening hole.

Images