Assembly structure of pressure shell noise reduction cover

Abstract

The utility model relates to an assembly structure of a pressure shell noise reduction cover, which comprises a pressure shell, a noise reduction cover and an auxiliary assembly component, the inner wall of an air inlet of the pressure shell is provided with an internal thread, and the outer wall of the noise reduction cover is provided with an external thread matched with the internal thread; the structure of the auxiliary assembling component comprises an upper positioning part, and the silencing cover is provided with a lower positioning part matched with the upper positioning part; the auxiliary assembling assembly is in positioning fit with the silencing cover and used for driving the silencing cover to be assembled with the pressing shell in a threaded mode. According to the utility model, the thread assembly of the pressure shell noise reduction cover is realized, and the assembly precision and the assembly efficiency are improved. The precision is easy to control, and the device is convenient to disassemble, maintain and replace. The auxiliary assembly component is reasonable in structural design, convenient to operate, capable of connecting an external torque driving piece with the silencing cover in a transmission mode, capable of achieving torque input, suitable for manual or automatic operation, flexible in operation and high in universality.

Description

TECHNICAL FIELD

[0001] The utility model relates to a pressure shell silencer assembly structure belongs to pressure shell silencer technical field. BACKGROUND

[0002] The turbocharger is a kind of matching with engine, for improving engine fuel performance, reducing the product of automobile exhaust emission.The compressor casing (abbreviation compressor casing) is one of important parts in the pressure booster.Compressor casing inlet installs silencer or is called muffler.The prior art, silencer and inlet are usually tight fit, installation needs to be pressed into inlet, so that both are embedded.One aspect installation efficiency is low, cannot guarantee installation accuracy.The other hand is not convenient to disassemble and maintain. SUMMARY

[0003] In view of the deficiencies of prior art, the utility model provides a kind of pressure shell silencer assembly structure, to realize the threaded assembly of pressure shell silencer, improve assembly accuracy and efficiency.

[0004] The technical scheme adopted by the utility model is as follows:

[0005] A kind of pressure shell silencer assembly structure, including pressure shell, silencer and auxiliary assembly component, the inner wall of the pressure shell inlet is provided with internal thread, the outer wall of the silencer is provided with the external thread matched with the internal thread;The structure of the auxiliary assembly component includes upper positioning part, the silencer is provided with lower positioning part matched with the upper positioning part;The auxiliary assembly component and the silencer positioning cooperation are used to drive the threaded assembly of silencer and pressure shell.

[0006] Further technical scheme is:

[0007] The structure of the upper positioning part includes positioning pin, the structure of the lower positioning part includes positioning groove for clamping the positioning pin.

[0008] The positioning groove includes setting two, and evenly distributed on the inner circumferential surface of the silencer along circumferential direction.

[0009] The cross section of the positioning pin is U-shaped, and the positioning groove has U-shaped side and horizontal bottom surface perpendicular to the U-shaped side.

[0010] The structure of the auxiliary assembly component includes base, runner and connecting component;The base and runner are both center-symmetrical structure, and are connected into a whole by the connecting component at center position;The upper positioning part is arranged on the lower surface of the base.

[0011] The connecting component includes screw and outer nut, the screw passes through the center of the base and runner from bottom, and the top extends out of runner and cooperates with the outer nut;The outer nut is used to be connected with torque transmission member.

[0012] The upper surface of the base is provided with a limiting groove, and the rotating wheel is clamped into the limiting groove.

[0013] The base is in a cross shape and comprises four support blocks which are perpendicular to each other and uniformly distributed.

[0014] The lower positioning part comprises two parts which are arranged at the bottom of the two opposite support blocks respectively.

[0015] The edge of the bottom of the support block is provided with a giving part for avoiding the circumferential edge of the soundproof cover.

[0016] The beneficial effects of the utility model are as follows:

[0017] The utility model discloses a threaded assembly of the shell-pressing soundproof cover, improves assembly precision and efficiency. Threaded assembly not only is easy to control precision, and is convenient for dismounting, is convenient for maintenance and replacement. The auxiliary assembly component structure design of the utility model is reasonable, and convenient operation is connected with the soundproof cover to the external torque driving piece, realizes torque input, is applicable to manual or automatic operation, and is flexible in operation, and is strong in universality.

[0018] Other features and advantages of the utility model will be described in the subsequent description or be understood through the implementation of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the three-dimensional structure schematic diagram of the utility model embodiment.

[0020] Figure 2 It is the structure schematic diagram of the shell of the utility model embodiment.

[0021] Figure 3 It is the structure schematic diagram of the soundproof cover of the utility model embodiment.

[0022] Figure 4 It is the structure schematic diagram of the auxiliary assembly component of the utility model embodiment.

[0023] In the drawing: 1, base, 2, rotating wheel, 3, outer nut, 4, soundproof cover, 5, shell-pressing, 6, positioning groove, 7, screw, 8, positioning pin, 9, giving part, 10, external thread, 11, internal thread. DETAILED DESCRIPTION

[0024] The specific implementation of the utility model will be described below in combination with the drawings.

[0025] Referring to Figures 1 to 3The assembly structure of the shell pressing muffler of the embodiment comprises a shell pressing part 5, a muffler 4 and an auxiliary assembly component, the inner wall of the air inlet of the shell pressing part 5 is provided with an inner thread 11, and the outer wall of the muffler 4 is provided with an outer thread 10 matched with the inner thread 11; the structure of the auxiliary assembly component comprises an upper positioning part, and the muffler 4 is provided with a lower positioning part matched with the upper positioning part; the auxiliary assembly component is positioned and matched with the muffler 4, and is used for driving the muffler 4 to be threadedly assembled with the shell pressing part 5.

[0026] As a specific embodiment, as shown in Figure 3 、 Figure 4 , the structure of the upper positioning part comprises a positioning pin 8, and the structure of the lower positioning part comprises a positioning groove 6 used for clamping and matching the positioning pin 8.

[0027] As a specific embodiment, the positioning groove 6 comprises two positioning grooves, which are uniformly distributed on the inner circumferential surface of the muffler 4 in the circumferential direction.

[0028] As a specific embodiment, the cross section of the positioning pin 8 is U-shaped, and the positioning groove 6 has a U-shaped side surface and a horizontal bottom surface perpendicular to the U-shaped side surface.

[0029] As a specific embodiment, referring to Figure 4 , the structure of the auxiliary assembly component comprises a base 1, a rotating wheel 2 and a connecting component; the base 1 and the rotating wheel 2 are both center-symmetrical structures, and are connected into a whole through the connecting component at the center position; the upper positioning part is arranged on the lower surface of the base 1.

[0030] As shown in Figure 4 , the connecting component comprises a screw 7 and an outer nut 3, the screw 7 passes through the centers of the base 1 and the rotating wheel 2 from the bottom, and the top of the screw 7 is matched with the outer nut 3 after extending out of the rotating wheel 2; the outer nut 3 is used for being connected with a torque transmission member.

[0031] The torque transmission member can be a torque wrench or other automatic driving equipment, such as a motor.

[0032] As a specific embodiment, the upper surface of the base 1 is provided with a limiting groove, and the rotating wheel 2 is clamped into the limiting groove. The stability of the connecting structure of the base 1 and the rotating wheel 2 is improved through the limiting groove.

[0033] The rotating wheel 2 is preferably a circular disc structure.

[0034] It can be understood that the base 1, the rotating wheel 2 and the connecting component can be detachably connected through the mode of the embodiment. They can also be integrally formed.

[0035] As a specific embodiment, the base 1 is cross-shaped, comprising four support blocks perpendicular to each other and evenly distributed. The cross-shaped structure is advantageous to improve the symmetry of the auxiliary assembly component, so that it remains balanced during rotation, thereby making the sound muffler 4 bear force evenly and improving the assembly precision between the sound muffler 4 and the compression shell 5.

[0036] As shown in the figure, the positioning pins 8 as the upper positioning parts comprise two, respectively arranged at the bottom of the two opposite support blocks. Figure 4

[0037] As a preferred embodiment, the edge of the bottom of the support block is provided with a clearance 9 for avoiding the circumferential edge of the sound muffler 4 during assembly, so that the torque is smoothly transmitted to the sound muffler 4 through the outer nut 3 without interference.

[0038] The working principle of the assembly structure of the compression shell sound muffler of the embodiment is as follows:

[0039] First, the auxiliary assembly component is assembled, and the runner 2 and the base 1 are fixed together by the screw 7 and the outer nut 3 to form an integral whole; the sound muffler 4 is placed into the compression shell 5 at the air inlet, and the two are threadedly connected for a distance by manual operation, then the upper positioning part of the auxiliary assembly component is clamped into the lower positioning part of the sound muffler 4 to realize transmission connection; the torque is transmitted to the sound muffler 4 through the auxiliary assembly component by the transmission connection between the torque wrench or other driving member and the outer nut 3, so that the compression shell 5 and the sound muffler 4 are assembled by thread.

[0040] By using the auxiliary assembly component, efficient assembly can be realized under the condition of a large number of axial thread turns between the compression shell 5 and the sound muffler 4, which not only improves the assembly precision, but also improves the stability and assembly efficiency of the assembly structure. Moreover, it is convenient to disassemble and replace.

[0041] Those skilled in the art can understand that the above description is only a preferred embodiment of the present application and is not used to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, and for those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified or some technical features can be replaced equivalently. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.​

Claims

1. A structure for assembling a shell-pressing sound muffling cover, characterized by comprising: The application relates to a sound-absorbing cover assembly, which comprises a pressure shell (5), a sound-absorbing cover (4) and an auxiliary assembly, an inner thread (11) is arranged on the inner wall of the air inlet of the pressure shell (5), an outer thread (10) is arranged on the outer wall of the sound-absorbing cover (4) and matches the inner thread (11), the auxiliary assembly comprises an upper positioning part, the sound-absorbing cover (4) is provided with a lower positioning part which matches the upper positioning part, the auxiliary assembly is positioned and matched with the sound-absorbing cover (4) and is used for driving the sound-absorbing cover (4) to be threadedly assembled with the pressure shell (5).

2. The assembly structure of the shell-pressing sound cover according to claim 1, wherein The upper positioning part comprises a positioning pin (8), and the lower positioning part comprises a positioning groove (6) which is used for clamping and matching the positioning pin (8).

3. The assembly structure of the shell-pressing sound cover according to claim 2, characterized by, The positioning groove (6) comprises two positioning grooves which are uniformly distributed on the inner circumferential surface of the sound-absorbing cover (4) in the circumferential direction.

4. The assembly structure of the shell-pressing sound cover according to claim 2, wherein The cross section of the positioning pin (8) is U-shaped, and the positioning groove (6) has a U-shaped side and a horizontal bottom surface which is perpendicular to the U-shaped side.

5. The assembly structure of a shell-pressing sound cover according to claim 1, wherein The auxiliary assembly comprises a base (1), a rotating wheel (2) and a connecting assembly, the base (1) and the rotating wheel (2) are both center-symmetrical structures and are connected into a whole through the connecting assembly at the center position, and the upper positioning part is arranged on the lower surface of the base (1).

6. The assembly structure of the shell-pressing sound cover according to claim 5, wherein The connecting assembly comprises a screw (7) and an outer nut (3), the screw (7) passes through the centers of the base (1) and the rotating wheel (2) from the bottom and extends out of the rotating wheel (2) to match the outer nut (3) at the top, and the outer nut (3) is used for being connected with a torque transmission member.

7. The assembly structure of the shell-pressing sound cover according to claim 6, wherein The upper surface of the base (1) is provided with a limiting groove, and the rotating wheel (2) is clamped into the limiting groove.

8. The assembly structure of the shell-pressing sound cover according to claim 5, wherein The base (1) is cross-shaped and comprises four supporting blocks which are perpendicular to each other and are uniformly distributed.

9. The assembly structure of the shell-pressing sound cover according to claim 8, wherein The lower positioning part comprises two lower positioning parts which are arranged on the bottoms of two opposite supporting blocks respectively.

10. The assembly structure of the shell-pressing sound cover according to claim 8, wherein The edge of the bottom of the supporting block is provided with a giving part (9) which is used for avoiding the circumferential edge of the sound-absorbing cover (4).

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