Turbocharger turbine height self-adaptive positioning device
The turbocharger turbine height adaptive positioning is achieved by using an elastic adjustment mechanism, which solves the problem of frequent sleeve replacement caused by the height difference of turbine components, improves positioning versatility and production efficiency, and reduces costs and maintenance difficulty.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUXI WEIFU HIGH TECH CO LTD
- Filing Date
- 2025-05-08
- Publication Date
- 2026-05-08
AI Technical Summary
The inconsistent height of the spline head of the turbine components in existing turbochargers leads to frequent replacement of sleeves or positioning tooling, resulting in a lack of versatility, increased tooling design and manufacturing costs, prolonged changeover and adjustment time, and impact on production efficiency.
The system employs an elastic adjustment mechanism, including a guide sleeve, a positioning sleeve, and an elastic element. The elastic element provides axial elastic force, allowing the positioning sleeve to automatically adapt to different heights of the Phillips head, achieving height-adaptive positioning. Combined with limit and anti-rotation fixing, the system simplifies the structure and eliminates the need for a pneumatic system.
It improves the versatility of positioning and assembly and the efficiency of on-site adaptation, reduces tooling development and maintenance costs, simplifies operation, improves system stability and reduces maintenance difficulty.
Smart Images
Figure CN224209773U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of turbocharger technology, and in particular to a positioning device for turbocharger turbine height self-adaptation. Background Technology
[0002] During the assembly of the turbocharger core, precise positioning of the turbine component's spline head is required to ensure effective tightening of the shaft end nut before applying torque. Current technology typically achieves this positioning by changing sleeves of different heights or using dedicated spline head positioning fixtures. However, due to structural design differences within the same platform, the spline head position of the turbine component varies significantly, leading to frequent changes of sleeves or positioning fixtures. This approach not only lacks versatility but also significantly increases tooling design and manufacturing costs, prolongs changeover and adjustment time, and consequently impacts overall assembly cycle time and production efficiency.
[0003] Another existing solution is to use a cylinder-driven mechanism to automatically adjust the height of the positioning sleeve. Although it can adapt to the height changes of different products to a certain extent, this solution requires an additional air supply system and introduces multiple control components, resulting in a complex overall structure, large space occupation, inconvenient maintenance, and high cost. Summary of the Invention
[0004] Therefore, this utility model provides a positioning device for turbocharger turbine height self-adaptation, which can be applied to the positioning of turbocharger turbines of different heights, and has a simple structure and low maintenance cost.
[0005] To solve the above-mentioned technical problems, this utility model provides a positioning device for turbocharger turbine height self-adaptation, including a base and a device disposed on the base:
[0006] Core positioning seat, suitable for positioning and placing turbocharger core components;
[0007] The flexible adjustment mechanism includes:
[0008] Guide sleeve, installed on the base;
[0009] A positioning sleeve is axially movably connected inside the guide sleeve, and the positioning sleeve is adapted to be positioned and fitted with the turbine head of the turbocharger core component;
[0010] An elastic element is disposed between the base and the positioning sleeve to provide a force that allows the positioning sleeve to move along the guide sleeve and fit tightly against the turbine head.
[0011] In one embodiment of this utility model, the elastic adjustment mechanism further includes a lower limit plate and an upper limit plate. The upper limit plate is connected to one end of the positioning sleeve, the lower limit plate is connected to the guide sleeve, and the two ends of the elastic element abut against the lower limit plate and the upper limit plate, respectively.
[0012] In one embodiment of this utility model, the lower limiting piece and the upper limiting piece have positioning protrusions extending along their respective axial directions on their opposite sides. The elastic element includes a helical spring, and the two ends of the elastic element are sleeved on each of the positioning protrusions for positioning.
[0013] In one embodiment of this utility model, the upper limit plate is connected to one end of the positioning sleeve by an interference fit or a countersunk bolt.
[0014] In one embodiment of this utility model, the inner hole of the guide sleeve at the end away from the base extends radially inward to a limiting end, and the upper limit plate can contact the limiting end for limiting when moving.
[0015] In one embodiment of this utility model, the limiting end is provided with an anti-rotation guide surface, and the outer wall of the positioning sleeve is provided with a milled end surface that slides in cooperation with the anti-rotation guide surface.
[0016] In one embodiment of this utility model, the guide sleeve and the lower limiting piece are connected by countersunk bolts, and the guide sleeve and the lower limiting piece are positioned in the stepped hole of the base.
[0017] In one embodiment of this utility model, the core body positioning seat includes a core body support, which is sleeved on the elastic adjustment mechanism. The core body support is provided with a placement hole suitable for the turbocharger core body component to be inserted and placed axially. The turbocharger core body component is provided with a core body positioning structure in the radial direction. The side wall of the placement hole is provided with a support positioning step that cooperates with the core body positioning structure.
[0018] In one embodiment of the present invention, the core body positioning seat further includes a core body support plate disposed on the core body support, the core body support plate including a plate end face that can be aligned with the core body oil return port end face of the turbocharger core body component.
[0019] In one embodiment of this utility model, the base is provided with a handle.
[0020] The above-mentioned technical solution of this utility model has the following advantages compared with the prior art:
[0021] This utility model discloses a turbocharger turbine height adaptive positioning device. Through an elastic element providing axial elastic force, the positioning sleeve automatically adapts to turbine heads of varying heights, maintaining constant contact with the turbine head. This achieves adaptive positioning of the turbine head height, significantly improving the versatility of positioning and assembly. It possesses high versatility and adaptability, accommodating turbine head height variations for all models of turbochargers on the same platform. During assembly, no tooling replacement or redesign is required; a single device can complete positioning operations for multiple product specifications, significantly improving tooling versatility and on-site adaptation efficiency.
[0022] Compared to traditional methods that require frequent replacement of positioning sleeves or special tooling, this device avoids frequent tooling changes through its adaptive structure, significantly reducing tooling development costs and downtime during on-site tooling changes, and effectively reducing equipment design and maintenance costs.
[0023] In addition, the positioning device achieves height adjustment through an elastic adjustment mechanism and uses a mechanical structure to achieve limit and anti-rotation fixation, eliminating the need for a pneumatic system and its control device. The overall structure is compact and easy to operate. The operation does not rely on an external air source, which not only improves system stability but also reduces maintenance difficulty and operating costs. Attached Figure Description
[0024] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.
[0025] Figure 1 This is a schematic diagram of the overall structure of the positioning device of this utility model.
[0026] Figure 2 This is an exploded structural diagram of the elastic adjustment mechanism of this utility model.
[0027] Figure 3 This is a structural schematic diagram of the core component of the turbocharger of this utility model.
[0028] Figure 4 This is a schematic diagram of the positioning device of this utility model.
[0029] Explanation of reference numerals in the instruction manual:
[0030] 1. Positioning device; 1.1. Core body support; 1.1.1. Support positioning step; 1.2. Base; 1.3. Elastic adjustment mechanism; 1.3.1. Lower limit plate; 1.3.1.1. Upper end face of shaft protrusion; 1.3.2. Elastic element; 1.3.3. Guide sleeve; 1.3.3.1. Anti-rotation guide surface; 1.3.3.2. Limiting end; 1.3.4. Positioning sleeve; 1.3.5. Upper limit plate; 1.4. Handle; 1.5. Core body against plate; 1.5.1. Plate end face;
[0031] 2. Turbocharger core components; 2.1 Shaft end nut; 2.2 Core oil return port end face; 2.3 Core positioning structure; 2.4 Turbine head. Detailed Implementation
[0032] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.
[0033] In this utility model, when directions (up, down, left, right, front, and back) are described, it is only for the convenience of describing the technical solution of this utility model, and does not indicate or imply that the technical features referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.
[0034] In this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," "exceeding," etc. are understood to exclude the stated number; "above," "below," "within," etc. are understood to include the stated number. In the description of this utility model, if "first" or "second" is used, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the order of the indicated technical features.
[0035] In this utility model, unless otherwise explicitly defined, terms such as "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a direct connection or an indirect connection through an intermediate medium; a fixed connection, a detachable connection, or an integrally formed connection; a mechanical connection, an electrical connection, or a connection capable of mutual communication; or the internal connection of two components or the interaction between two components. Those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model based on the specific content of the technical solution.
[0036] Reference Figure 1 As shown, a turbocharger turbine height adaptive positioning device 1 of this utility model includes a base 1.2 and a device disposed on the base 1.2:
[0037] Core positioning seat, suitable for positioning and placing turbocharger core component 2;
[0038] The flexible adjustment mechanism 1.3 includes:
[0039] Guide sleeve 1.3.3 is installed on the base 1.2;
[0040] The positioning sleeve 1.3.4 is axially movably connected inside the guide sleeve 1.3.3, and the positioning sleeve 1.3.4 is adapted to be positioned and fitted with the turbine head 2.4 of the turbocharger core component 2;
[0041] An elastic element 1.3.2 is disposed between the base 1.2 and the positioning sleeve 1.3.4 to provide a force for the positioning sleeve 1.3.4 to move along the guide sleeve 1.3.3 and fit tightly against the turbine head 2.4.
[0042] The axial elastic force provided by the elastic element 1.3.2 enables the positioning sleeve 1.3.4 to automatically adapt to the different heights of the Phillips head and always fit with the turbine head 2.4, thus realizing the adaptive positioning of the turbine head 2.4 and greatly improving the versatility of the positioning assembly.
[0043] In one embodiment, refer to Figure 2 As shown, the elastic adjustment mechanism 1.3 further includes a lower limit plate 1.3.1 and an upper limit plate 1.3.5. The upper limit plate 1.3.5 is connected to one end of the positioning sleeve 1.3.4, the lower limit plate 1.3.1 is connected to the guide sleeve 1.3.3, and the two ends of the elastic element 1.3.2 abut against the lower limit plate 1.3.1 and the upper limit plate 1.3.5 respectively.
[0044] In one embodiment, the lower limiting piece 1.3.1 and the upper limiting piece 1.3.5 have positioning protrusions extending along their respective axial directions on their opposite sides, and the elastic element 1.3.2 includes a helical spring, with both ends of the elastic element 1.3.2 sleeved on each of the positioning protrusions for positioning.
[0045] In one embodiment, the upper limit plate 1.3.5 is connected to one end of the positioning sleeve 1.3.4 by an interference fit or a countersunk bolt.
[0046] In one embodiment, the inner hole of the guide sleeve 1.3.3 at the end away from the base 1.2 extends radially inward to form a limiting end 1.3.3.2. The upper limit plate 1.3.5 can contact the limiting end 1.3.3.2 for limiting during movement. The limiting end 1.3.3.2 is provided with an anti-rotation guide surface 1.3.3.1, specifically two of them. The outer wall of the positioning sleeve 1.3.4 is provided with a milled end face that slides with the anti-rotation guide surface 1.3.3.1. The anti-rotation guide surface 1.3.3.1 cooperates with the milled end face to prevent rotation. This effectively prevents the positioning sleeve 1.3.4 from rotating during torque application, ensuring that the torque is fully applied to the shaft end nut 2.1 and guaranteeing operational accuracy.
[0047] Understandably, due to the spring force, the positioning sleeve 1.3.4 can move within the guide sleeve 1.3.3, and is limited by the limiting end 1.3.3.2 of the guide sleeve 1.3.3 and the upper end face 1.3.1.1 of the locating protrusion of the lower limiting piece 1.3.1. This provides reliable mechanical limiting protection, ensuring that the positioning sleeve 1.3.4 has sufficient freedom under the action of the spring force without slipping out, thus enhancing safety and lifespan stability.
[0048] In one embodiment, the guide sleeve 1.3.3 and the lower limit piece 1.3.1 are connected by countersunk bolts, and the guide sleeve 1.3.3 and the lower limit piece 1.3.1 are positioned within the stepped hole of the base 1.2. This modular installation method results in high structural integration, small space occupation, and suitability for automated assembly line layouts.
[0049] In one embodiment, refer to Figure 1 , Figure 3 As shown, the core body positioning seat includes a core body support 1.1, which is sleeved on the elastic adjustment mechanism 1.3. The core body support 1.1 is provided with a placement hole suitable for the turbocharger core body component 2 to be inserted axially. The turbocharger core body component 2 is provided with a core body positioning structure 2.3 in the radial direction. The side wall of the placement hole is provided with a support positioning step 1.1.1 that cooperates with the core body positioning structure 2.3.
[0050] In one embodiment, the core body positioning seat further includes a core body support plate 1.5 disposed on the core body support 1.1, and the core body support plate 1.5 includes a plate end face 1.5.1 that can be aligned with the core body oil return port end face 2.2 of the turbocharger core body component 2.
[0051] In one embodiment, the base 1.2 is provided with a handle 1.4 to facilitate the overall transport of the device.
[0052] Reference Figure 4 As shown, in actual operation, the center of the turbocharger core component 2 is aligned with the core support 1.1 and vertically placed in the core support 1.1. The oil return port end face 2.2 of the turbocharger core component 2 is aligned with the flat end face 1.5.1 of the core plate 1.5. The core positioning structure 2.3 of the turbocharger core component 2 is in contact with the positioning step 1.1.1 of the support. Under the action of the elastic element 1.3.2, the positioning sleeve 1.3.4 is in contact with the turbine head 2.4 to achieve the positioning purpose. At this time, torque can be applied to tighten the shaft end nut 2.1.
[0053] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although this utility model has been described in detail with reference to examples, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A positioning device for adaptive turbine height of a turbocharger, characterized in that, Includes a base (1.2) and a component disposed on the base (1.2): Core positioning seat, suitable for positioning and placing the turbocharger core component (2); The flexible adjustment mechanism (1.3) includes: Guide sleeve (1.3.3) is installed on the base (1.2); The positioning sleeve (1.3.4) is axially movably connected inside the guide sleeve (1.3.3), and the positioning sleeve (1.3.4) is adapted to be positioned and fitted with the turbine head (2.4) of the turbocharger core component (2); An elastic element (1.3.2) is disposed between the base (1.2) and the positioning sleeve (1.3.4) to provide a force for the positioning sleeve (1.3.4) to move along the guide sleeve (1.3.3) and fit tightly against the turbine head (2.4).
2. The turbocharger turbine height adaptive positioning device according to claim 1, characterized in that, The elastic adjustment mechanism (1.3) further includes a lower limit plate (1.3.1) and an upper limit plate (1.3.5). The upper limit plate (1.3.5) is connected to one end of the positioning sleeve (1.3.4), the lower limit plate (1.3.1) is connected to the guide sleeve (1.3.3), and the two ends of the elastic element (1.3.2) abut against the lower limit plate (1.3.1) and the upper limit plate (1.3.5) respectively.
3. The turbocharger turbine height adaptive positioning device according to claim 2, characterized in that, The lower limiting piece (1.3.1) and the upper limiting piece (1.3.5) have positioning protrusions extending along their respective axial directions on their opposite sides. The elastic element (1.3.2) includes a helical spring, and the two ends of the elastic element (1.3.2) are sleeved on each of the positioning protrusions for positioning.
4. The turbocharger turbine height adaptive positioning device according to claim 2, characterized in that, The upper limit plate (1.3.5) is connected to one end of the positioning sleeve (1.3.4) by an interference fit or a countersunk bolt.
5. The turbocharger turbine height adaptive positioning device according to claim 2, characterized in that, The inner hole of the guide sleeve (1.3.3) at the end away from the base (1.2) extends radially inward to a limiting end. 1.3.3.2), the upper limit plate (1.3.5) can contact the limiting end (1.3.3.2) to limit movement when it moves.
6. The turbocharger turbine height adaptive positioning device according to claim 5, characterized in that, The limiting end (1.3.3.2) is provided with an anti-rotation guide surface (1.3.3.1), and the outer wall of the positioning sleeve (1.3.4) is provided with a milled end surface that slides in cooperation with the anti-rotation guide surface (1.3.3.1).
7. The turbocharger turbine height adaptive positioning device according to claim 2, characterized in that, The guide sleeve (1.3.3) and the lower limit piece (1.3.1) are connected by countersunk bolts. The guide sleeve (1.3.3) and the lower limit piece (1.3.1) are positioned in the stepped hole of the base (1.2).
8. The turbocharger turbine height adaptive positioning device according to claim 1, characterized in that, The core body positioning seat includes a core body support (1.1), which is sleeved on the elastic adjustment mechanism (1.3). The core body support (1.1) is provided with a placement hole suitable for the turbocharger core body component (2) to be inserted axially. The turbocharger core body component (2) is provided with a core body positioning structure (2.3) radially. The sidewall of the placement hole is provided with a support positioning step that cooperates with the core body positioning structure (2.3). 1.1.1）。 9. A turbocharger turbine height adaptive positioning device according to claim 8, characterized in that, The core body positioning seat also includes a core body support ( 1.1) The core body is attached to a flat plate (1.5), which includes a flat plate end face (1.5.1) that can be aligned with the core body oil return port end face (2.2) of the turbocharger core body component (2).
10. A turbocharger turbine height adaptive positioning device according to claim 1, characterized in that, The base (1.2) is provided with a handle (1.4).