Split type push rod in turbocharger
By improving the turbocharger pushrod with a split design and welded structure, the problems of high production costs and easy deformation during nitriding treatment were solved, resulting in cost reduction and improved yield.
Patent Information
- Application Number
- CN202520843793.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-29
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-04-29
AI Technical Summary
Existing turbocharger pushrods have high production costs and are prone to deformation during nitriding treatment, making it difficult to control deformation and affecting yield.
The push rod adopts a split design, dividing it into an intermediate rod and a connecting rod. These are welded and nitrided separately. The connecting rod and the intermediate rod are equipped with protruding plates and welding plates to enhance the welding strength.
It reduced production costs, increased yield, and lowered the cost of nitriding treatment without affecting service life.
Smart Images
Figure CN223952692U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to turbocharger technical field especially relates to a split type push rod in turbocharger. BACKGROUND
[0002] The turbocharger is a kind of device using the remaining energy of internal combustion engine exhaust gas to improve the intake of internal combustion engine, and in order to adjust the intake pressure of turbocharging system, prevent the damage of engine or turbocharger due to excessive pressure, electronic actuator is generally equipped on turbocharger, and electronic actuator controls the opening of bypass valve in turbocharger through push rod, to adjust the intake pressure of turbocharging system.
[0003] At present, the push rod in turbocharger is generally formed by mould, and the push rod is long, which makes the size requirement of mould larger, improves production cost;
[0004] In addition, the push rod usually needs to be nitrided at present, and the cost of nitriding the whole push rod is higher, and the whole nitriding is prone to deformation, and the deformation is uncontrollable, so it needs to be improved to reduce the post-processing cost under the premise of not changing the service life of push rod, and improve the yield. TECHNICAL CONTENT
[0005] In view of the deficiencies of prior art, the utility model provides a split type push rod in turbocharger to solve the problems mentioned in the background art.
[0006] The utility model provides the following technical scheme: a split type push rod in turbocharger, including intermediate rod and the connecting rod being connected to the both ends of intermediate rod, two connecting rods are welded to the both ends of intermediate rod respectively, the one end of connecting rod away from intermediate rod is integrally formed with flat part, and the connecting hole that passes through up and down is equipped in flat part;
[0007] The connecting rod and the flat part are treated by nitriding.
[0008] Preferably, the connecting rod is integrally formed with two convex plates distributed in front and back on the end face away from the flat part, the both ends of the intermediate rod are integrally formed with a welding plate inserted between the two convex plates, and the convex plate is welded with the welding plate.
[0009] Preferably, the side surface of two convex plates on one connecting rod away from each other is coplanar with the curved surface of the connecting rod.
[0010] Preferably, the upper and lower side surfaces of the convex plate and the welding plate are coplanar and are both flat surfaces.
[0011] Preferably, the edge of the upper and lower side surfaces of the welding plate is chamfered, and the chamfer distance is 0.5mm.
[0012] Preferably, the welding plate can be attached to the end face of the connecting rod and welded.
[0013] Preferably, the middle part of the intermediate rod is arranged obliquely, so that the axes of the two connecting rods are parallel and do not intersect.
[0014] Preferably, the edge of the flat part is chamfered.
[0015] The utility model provides a split type push rod in turbocharger, has the following beneficial effects:
[0016] The utility model discloses a split type production of connecting rod and intermediate rod and then welding, and the required mould of production is smaller, and the production cost is lower, and the method of nitriding treatment of connecting rod alone can also reduce the production cost without affecting the overall service life,
[0017] The utility model discloses the welding of connecting rod and intermediate rod through the setting of convex plate and welding plate on connecting rod and intermediate rod, and the edge of welding plate is chamfered, so that the welding material can enter the chamfer, and the welding strength is further improved. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 It is the appearance schematic drawing of the utility model;
[0019] Figure 2 It is Figure 1 It is the appearance schematic drawing of the intermediate rod;
[0020] Figure 3 It is Figure 1 It is the appearance schematic drawing of the connecting rod on the right side.
[0021] In the drawing:
[0022] 11, intermediate rod, 12, connecting rod, 13, flat part, 14, connecting hole, 21, convex plate, 22, welding plate. DETAILED DESCRIPTION
[0023] The embodiments of the utility model are described in detail below, and the examples of the embodiments are shown in the drawings. The embodiments described below by referring to the drawings are exemplary and are intended to explain the utility model, and cannot be understood as the limitation of the utility model.
[0024] In the description of the utility model, it is understood that the orientation or position relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.
[0025] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features.
[0026] In the utility model, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, can be fixedly connected, or can be detachably connected, or can be integrated; can be mechanically connected, or can be electrically connected or in communication with each other; can be directly connected, or can be indirectly connected through an intermediate medium; can be the internal communication of two elements or the interaction relationship of two elements, unless otherwise explicitly limited. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0027] Referring to Figures 1-3 , according to the embodiment of the utility model discloses a split type push rod in a turbocharger, including intermediate rod 11 and connecting rod 12 connected to the both ends of the intermediate rod 11, two connecting rods 12 are respectively welded on the both ends of the intermediate rod 11, the connecting rod 12 is integrally formed with flat part 13 at the end away from the intermediate rod 11, and the flat part 13 is provided with connecting hole 14 penetrating up and down, after the split type push rod in the turbocharger is installed on the turbocharger, two connecting holes 14 can be connected to bypass valve and electronic actuator respectively, and then the opening of bypass valve can be controlled through electronic actuator.
[0028] In addition, in order to increase the strength of the connection between the electronic actuator or the bypass valve, the connecting rod 12 and the flat part 13 are subjected to nitriding treatment.
[0029] Compared with the traditional integrally formed and nitriding treatment method of the whole push rod, the mold required by the method of the split push rod in the turbocharger is smaller, the production cost is lower, and the method of separately nitriding the connecting rod 12 and the flat part 13 can also reduce the production cost without affecting the overall service life.
[0030] The method for welding the connecting rod 12 and the intermediate rod 11 is that the connecting rod 12 is integrally formed with two protruding plates 21 distributed in front and back on the end face away from the flat part 13, the two ends of the intermediate rod 11 are integrally formed with a welding plate 22 inserted between the two protruding plates 21, and the protruding plates 21 and the welding plate 22 are welded.
[0031] In order to improve the aesthetic degree of the split push rod in the turbocharger and improve the thickness of the connecting rod 12 in the front and back directions, the sides of the two protruding plates 21 on one connecting rod 12 away from each other are coplanar with the curved surface of the connecting rod 12.
[0032] In order to improve the welding area and improve the welding strength, the upper and lower sides of the protruding plate 21 and the welding plate 22 are coplanar and are both flat surfaces, in addition, the edges of the upper and lower sides of the welding plate 22 are chamfered, so that the welding material (such as welding rod, welding wire, etc.) can enter the chamfer, and the chamfer distance is 0.5mm.
[0033] Further, the welding plate 22 can be attached to the end face of the connecting rod 12 and welded, and the protruding plate 21 can be attached to the end face of the intermediate rod 11 for welding, further increasing the welding area and further improving the welding stability.
[0034] In addition, in order to adapt to the shape of the turbocharger, the middle part of the intermediate rod 11 is obliquely arranged, so that the axes of the two connecting rods 12 are parallel and do not intersect, and the edges of the flat part 13 are chamfered.
[0035] The above only describes specific embodiments of the present application, but the technical features of the present application are not limited to this, any person skilled in the art in the field of the present application, the changes or modifications made are covered in the patent range of the present application.
Claims
1. A split push rod in a turbocharger, comprising a middle rod (11) and a connecting rod (12) connected to both ends of the middle rod (11), characterized in that: Two connecting rods (12) are welded at two ends of the middle rod (11), and a flat part (13) is integrally formed at an end of the connecting rod (12) away from the middle rod (11), and a connecting hole (14) penetrating up and down is arranged in the flat part (13); The connecting rod (12) and the flat part (13) are subjected to nitriding treatment; Two convex plates (21) are integrally formed on the end face of the connecting rod (12) away from the flat part (13), and a welding plate (22) is integrally formed at two ends of the middle rod (11) and inserted between the two convex plates (21), and the convex plate (21) is welded with the welding plate (22).
2. A split push rod in a turbocharger according to claim 1, characterized in that: The side faces of the two convex plates (21) on one connecting rod (12) away from each other are coplanar with the curved surface of the connecting rod (12).
3. A split push rod in a turbocharger according to claim 1, wherein: The upper and lower side faces of the convex plate (21) and the welding plate (22) are coplanar and are both flat surfaces.
4. A split push rod in a turbocharger according to claim 3, characterized in that: The upper and lower side faces of the welding plate (22) are chamfered, and the chamfering distance is 0.5 mm.
5. A split push rod in a turbocharger according to claim 3, wherein: The welding plate (22) can be attached to the end face of the connecting rod (12) and welded, and the convex plate (21) can be attached to the end face of the middle rod (11) and welded.
6. A split push rod in a turbocharger according to claim 1, wherein: The middle part of the middle rod (11) is obliquely arranged, so that the axes of the two connecting rods (12) are parallel and do not intersect.
7. The split push rod in a turbocharger of claim 1 wherein: The edge of the flat part (13) is chamfered.