Bushing press-fitting system

Abstract

The utility model discloses a bushing press-fitting system, and relates to the technical field of turbine shell assembly. The utility model comprises an operation box which is provided with a mounting table; the axial supporting mechanism is arranged on the mounting table and is provided with a cylindrical sleeve inserted into a turbine shell; the circumferential supporting mechanism is arranged on the mounting table and provided with a supporting bearing part abutting against the bottom face of the outer wall of the turbine shell and a positioning bearing part abutting against the end face of the bent pipe of the turbine shell; the axial positioning mechanism is arranged on the mounting table and provided with a stopping block abutting against the axial end face of the turbine shell, and the stopping block is arranged on the side opposite to the axial supporting mechanism; the lining press-in mechanism is arranged right above the mounting table and is provided with a press-fitting head capable of vertically and linearly moving, and the press-fitting head is arranged towards a lining sleeve inlet of the turbine shell; the purpose of accurately assembling the turbine shell lining is achieved.

Description

Technical Field

[0001] This utility model relates to the field of turbine housing assembly technology, specifically, a bushing press-fitting system. Background Technology

[0002] Turbine housing liner assembly is a crucial part of turbochargers, and its assembly quality directly affects the turbocharger's performance and reliability.

[0003] The turbine housing bushing is one of the key components of a turbocharger. It primarily connects the exhaust manifold and the intermediate housing, and serves as the working chamber for the turbine, guiding airflow to drive the turbine's rotation, which in turn rotates the compressor impeller. The bushing's main function also includes regulating the pressure within the turbine housing to prevent turbine failure due to excessive temperature or pressure.

[0004] During the assembly of the turbine housing bushing, it is necessary to precisely control the position and clearance of the bushing to ensure the normal operation of the turbocharger. Utility Model Content

[0005] The purpose of this invention is to provide a bushing press-fitting system to achieve accurate assembly of turbine housing bushings.

[0006] To achieve the above objectives, the present invention employs the following technical means:

[0007] A bushing press-fitting system, comprising:

[0008] The work box is equipped with a mounting platform.

[0009] An axial support mechanism, located on the mounting platform, is constructed with a cylindrical sleeve that is inserted into the turbine housing;

[0010] A circumferential support mechanism is provided on the mounting platform and is constructed with a support receiving part that abuts against the bottom surface of the outer wall of the turbine housing and a positioning receiving part that abuts against the end face of the bend of the turbine housing.

[0011] An axial positioning mechanism is provided on the mounting platform and has a stop block that abuts against the axial end face of the turbine housing. The stop block is located on the side opposite to the axial support mechanism.

[0012] The bushing pressing mechanism is located directly above the mounting platform and has a vertically movable pressing head that is positioned toward the bushing inlet of the turbine housing.

[0013] Preferably, the axial support mechanism includes a positioning plate mounted on the mounting platform, and a cylindrical sleeve with a horizontal axis is mounted on the side wall of the positioning plate. The cylindrical sleeve is used to coaxially insert into the turbine housing, and the outer wall of the cylindrical sleeve is fitted to the axial inner wall of the turbine housing.

[0014] Furthermore, the outer wall of the cylindrical sleeve is constructed with a plurality of abutment platforms that match the inner wall shape of the turbine housing. The cylindrical sleeve is constructed with a stop platform near the positioning plate that abuts against the axial outer end face of the turbine housing. When the stop platform abuts against the axial outer end face of the turbine housing, the abutment platform fits against the axial inner wall of the turbine housing.

[0015] Furthermore, the circumferential support mechanism includes a first support platform and a second support platform mounted on the mounting platform as the support receiving part. The first support platform and the second support platform are respectively located on both sides of the turbine housing axis. A first support column is constructed on the first support platform, and the top end of the first support column abuts against the bottom side of the outer wall of the turbine housing. A second support column is constructed on the second support platform, and the top end of the second support column abuts against the bottom side of the outer wall of the turbine housing. The first support column and the second support column are symmetrically arranged about the vertical plane of the turbine housing axis.

[0016] Furthermore, the top surface of the first support platform is constructed with a mating platform that is flush with the end face of the turbine housing bend. A clamping mechanism is installed on the top surface of the first support platform, with the clamping end of the clamping mechanism facing the mating platform. The clamping mechanism and the mating platform form the positioning and receiving part.

[0017] Furthermore, the axial positioning mechanism includes a positioning block mounted on the top surface of the mounting platform. The positioning block extends upward, and a stop bar is rotatably mounted on the side of the positioning block facing away from the axial support mechanism. The rotation angle of the stop bar is 90°. The stop bar includes a first rod and a second rod arranged at right angles. The connection position of the first rod and the second rod is rotatably mounted on the side of the positioning block.

[0018] Furthermore, the bushing pressing mechanism includes a hydraulic press located above the mounting platform. The pressing head is mounted on the telescopic end of the hydraulic press. The pressing head includes an abutment post. A positioning post is coaxially mounted on the lower end of the abutment post. The outer diameter of the positioning post is smaller than the outer diameter of the abutment post. A rubber sleeve is coaxially mounted on the outer wall of the positioning post.

[0019] This utility model has the following beneficial effects during use:

[0020] The turbine housing bushing is assembled using several devices mounted on the mounting platform of the work box. During assembly, the turbine housing's axis is stably positioned at both ends using an axial support mechanism and an axial positioning mechanism. The turbine housing body can still rotate around its axis to adjust the position of the bushing insertion hole. The axial support mechanism supports the outer wall of the turbine housing. The support receiving part provides vertical support for the turbine housing, while the positioning receiving part abuts against the turbine housing's bent end face. Once the positioning receiving part abuts against the turbine housing's bent end face, the turbine housing is positioned. At this point, the bushing insertion hole is in a stable position. Then, the bushing, aligned with the aforementioned hole, is inserted using the pressing head on the bushing pressing mechanism. This positioning adjustment using the circumferential support mechanism allows for rapid positioning and installation of the turbine housing. Furthermore, for turbine housings of the same model, after replacement, the next turbine housing can also be quickly positioned, allowing the bushing insertion hole to be quickly adjusted to an accurate assembly state. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model equipped with a turbine housing.

[0022] Figure 2 This is a schematic diagram of the present invention with the turbine housing disassembled.

[0023] Figure 3 for Figure 1 A magnified schematic diagram of the structure at point A in the middle.

[0024] Figure 4 for Figure 2 A magnified schematic diagram of the structure at point B in the middle.

[0025] Among them, 1-work box, 2-mounting platform, 3-axial support mechanism, 4-cylindrical sleeve, 5-axial positioning mechanism, 6-stop block, 7-bulb pressing mechanism, 8-pressing head, 9-positioning plate, 10-abutting platform, 11-stop platform, 12-first support platform, 13-second support platform, 14-first support column, 15-second support column, 16-fitting platform, 17-pressing mechanism, 18-first rod, 19-second rod, 20-abutting column, 21-positioning column. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0028] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0029] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0030] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0031] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] Please refer to Figures 1 to 4 As shown, a bushing press-fitting system includes:

[0033] The work box 1 is equipped with an installation platform 2;

[0034] An axial support mechanism 3 is provided on the mounting platform 2 and is constructed with a cylindrical sleeve 4 that is inserted into the turbine housing.

[0035] A circumferential support mechanism is provided on the mounting platform 2, and is constructed with a support receiving part that abuts against the bottom surface of the outer wall of the turbine housing and a positioning receiving part that abuts against the end face of the bend of the turbine housing.

[0036] An axial positioning mechanism 5 is provided on the mounting platform 2 and has a stop block 6 that abuts against the axial end face of the turbine housing. The stop block 6 is located on the side opposite to the axial support mechanism 3.

[0037] The bushing pressing mechanism 7 is located directly above the mounting platform 2 and has a pressing head 8 that moves vertically. The pressing head 8 is positioned toward the bushing inlet of the turbine housing.

[0038] In this way, the turbine housing bushing is assembled using several devices constructed on the mounting platform 2 on the work box 1. During assembly, the axial support mechanism 3 and the axial positioning mechanism 5 are used to stably position both ends of the turbine housing's axis. Based on this, the turbine housing body can still rotate around its axis, thereby adjusting the position of the bushing insertion hole. Furthermore, the axial support mechanism 3 supports the outer wall of the turbine housing. The support receiving part supports the turbine housing vertically, while the positioning receiving part abuts against the turbine housing's bent end face. When the positioning receiving part abuts against the turbine housing's bent end face, the turbine housing is positioned. At this point, the bushing insertion hole of the turbine housing is in a stable position. Then, the pressing head 8 on the bushing pressing mechanism 7 is used to insert the bushing aligned with the aforementioned hole. Thus, by using the positioning adjustment of the circumferential support mechanism, the turbine housing can be quickly positioned and installed. Furthermore, for turbine housings of the same model, after replacement, the next turbine housing can also be quickly positioned, allowing the bushing insertion hole to be quickly adjusted to an accurate assembly state.

[0039] Specifically, for the axial support mechanism 3, the axial support mechanism 3 includes a positioning plate 9 installed on the mounting platform 2. A cylindrical sleeve 4 with a horizontal axis is installed on the side wall of the positioning plate 9. The cylindrical sleeve 4 is used to coaxially insert into the turbine housing. The outer wall of the cylindrical sleeve 4 is fitted with the axial inner wall of the turbine housing.

[0040] Meanwhile, in order to improve the stability of the fit with the inner wall of the turbine housing, the outer wall of the cylindrical sleeve 4 is constructed with a plurality of abutment platforms 10 that match the shape of the inner wall of the turbine housing. The cylindrical sleeve 4 is constructed with a baffle 11 near the positioning plate 9 that abuts against the outer axial end face of the turbine housing. When the baffle 11 abuts against the outer axial end face of the turbine housing, the abutment platform 10 fits against the inner axial wall of the turbine housing.

[0041] Furthermore, the circumferential support mechanism includes a first support platform 12 and a second support platform 13 mounted on the mounting platform 2 as the support receiving part. The first support platform 12 and the second support platform 13 are respectively located on both sides of the turbine housing axis. A first support column 14 is constructed on the first support platform 12, and the top end of the first support column 14 abuts against the bottom side of the outer wall of the turbine housing. A second support column 15 is constructed on the second support platform 13, and the top end of the second support column 15 abuts against the bottom side of the outer wall of the turbine housing. The first support column 14 and the second support column 15 are symmetrically arranged about the vertical plane of the turbine housing axis.

[0042] Meanwhile, the top surface of the first support platform 12 is constructed with a mating platform 16 that is in plane with the end face of the turbine housing bend. A pressing mechanism 17 is installed on the top surface of the first support platform 12. The pressing end of the pressing mechanism 17 is arranged facing the mating platform 16. The pressing mechanism 17 and the mating platform 16 form the positioning receiving part.

[0043] Furthermore,

[0044] The axial positioning mechanism 5 includes a positioning block installed on the top surface of the mounting platform 2. The positioning block extends upward and a stop bar is rotatably installed on the side of the positioning block facing away from the axial support mechanism 3. The rotation angle of the stop bar is 90°. The stop bar includes a first rod 18 and a second rod 19 arranged at right angles. The connection position of the first rod 18 and the second rod 19 is rotatably installed on the side of the positioning block.

[0045] Furthermore, the bushing pressing mechanism 7 includes a hydraulic press located above the mounting platform 2. The press head 8 is installed at the telescopic end of the hydraulic press. The press head 8 includes an abutment post 20. A positioning post 21 is coaxially installed at the lower end of the abutment post 20. The outer diameter of the positioning post 21 is smaller than the outer diameter of the abutment post 20. A rubber sleeve is coaxially installed on the outer wall of the positioning post 21.

[0046] In this way, the bushing to be installed is fitted onto the outer wall of the positioning post 21, and the top of the bushing abuts against the abutment post 20, thereby using the press-fit head 8 to stably install the bushing into the turbine housing.

[0047] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A bushing press system, characterized by, The utility model provides a kind of turbine casing installation device, including: Job box (1), configured with installation platform (2); Axial support mechanism (3), is located on the installation platform (2), configured with the cylindrical sleeve (4) inserted into turbine casing; Circumferential support mechanism, is located on the installation platform (2), configured with the support receiving part of abutting in turbine casing outer wall bottom and the positioning receiving part of abutting with turbine casing elbow end face; Axial positioning mechanism (5), is located on the installation platform (2), configured with the resistance block (6) of abutting with the axial end face of turbine casing, the resistance block (6) is located on the side opposite to the axial support mechanism (3); Bushing press-in mechanism (7), is located on the top of the installation platform (2), configured with the vertical linear movement of pressure mounting head (8), the pressure mounting head (8) is towards the bushing installation entrance of turbine casing arrangement.

2. A bushing press system according to claim 1, wherein, The axial support mechanism (3) includes a positioning plate (9) mounted on the installation platform (2), the side wall of the positioning plate (9) is mounted with an axis horizontal cylindrical sleeve (4), the cylindrical sleeve (4) is used for coaxially inserted into turbine casing, the outer wall of the cylindrical sleeve (4) is arranged in combination with the axial inner wall of turbine casing.

3. A bushing press system according to claim 2, wherein, The outer wall of the cylindrical sleeve (4) is configured with a plurality of abutting tables (10) matched with the inner wall topography of turbine casing, the position of the cylindrical sleeve (4) close to the positioning plate (9) is configured with a stop table (11) abutting with the axial outer end face of turbine casing, when the stop table (11) abuts with the axial outer end face of turbine casing, the abutting table (10) abuts in combination with the axial inner wall of turbine casing.

4. A bushing press system according to claim 1, wherein, The circumferential support mechanism includes a first support table (12) and a second support table (13) mounted on the installation platform (2) as the support receiving part, the first support table (12) and the second support table (13) are respectively located on both sides of the axis of turbine casing, the first support table (12) is configured with a first support column (14), the top end of the first support column (14) abuts with the bottom side of the outer wall of turbine casing, the second support table (13) is configured with a second support column (15), the top end of the second support column (15) abuts with the bottom side of the outer wall of turbine casing, the first support column (14) and the second support column (15) are symmetrically arranged about the vertical plane of the axis of turbine casing.

5. A bushing press system as in claim 4, wherein, The top surface of the first support table (12) is configured with a combination table (16) abutting with the plane of the elbow end face of turbine casing, the top surface of the first support table (12) is mounted with a pressing mechanism (17), the pressing end of the pressing mechanism (17) is arranged towards the combination table (16), the pressing mechanism (17) and the combination table (16) form the positioning receiving part.

6. A bushing press system according to claim 1, wherein, The axial positioning mechanism (5) includes a positioning block mounted on the top surface of the installation platform (2), the positioning block is arranged to extend upwards, one side of the positioning block away from the axial support mechanism (3) is rotatably mounted with the resistance block (6), the rotation angle of the resistance block (6) is 90°, the resistance block (6) includes a first rod (18) and a second rod (19) arranged at right angles, the connection position of the first rod (18) and the second rod (19) is rotatably mounted on the side surface of the positioning block.

7. A bushing press system as in claim 1, wherein, The bush press-in mechanism (7) comprises a hydraulic machine arranged above the mounting table (2), the telescopic end of the hydraulic machine is provided with the press head (8), the press head (8) comprises an abutting column (20), the lower end of the abutting column (20) is coaxially provided with a positioning column (21), the outer diameter of the positioning column (21) is smaller than the outer diameter of the abutting column (20), and the outer wall of the positioning column (21) is coaxially provided with a rubber sleeve.

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