A special involute spline plug gauge for high power density diesel engine valve gear

By designing a special involute spline plug gauge and using first and second spline racks to detect the coaxiality and shape of the valve train of a diesel engine, the problem of difficult detection in the existing technology has been solved, and efficient and accurate detection results have been achieved.

CN224415993UActive Publication Date: 2026-06-26SHANXI NORTH HENGTONG POWER SYSTEM CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANXI NORTH HENGTONG POWER SYSTEM CO LTD
Filing Date
2025-09-15
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

The lack of dedicated spline plug gauges for existing diesel engine valve trains makes inspection difficult and prevents rapid testing of coaxiality and shape.

Method used

A dedicated involute spline plug gauge for valve train gears in high-power-density diesel engines is designed, equipped with a first spline rack and a second spline rack, for detecting coaxiality and shape. The handle features a knurled pattern and a flat design to improve operating comfort.

Benefits of technology

This improved the accuracy and efficiency of testing diesel engine valve trains, enabling efficient and comprehensive testing of spline tooth profile error parameters.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a special involute spline plug gauge for high power density diesel engine gear, belongs to plug gauge technical field, specifically includes plug gauge head and handle, one side of plug gauge head is connected with handle, plug gauge head is the columnar structure, and one first spline rack is arranged on both sides of the columnar structure respectively, both sides first spline rack symmetrically sets up, two second spline racks are arranged on the other two sides of the columnar structure respectively, both sides second spline rack symmetrically sets up, first spline rack and second spline rack are same with the design parameter of diesel engine gear, the utility model can effectively improve detection accuracy and detection efficiency, and be mainly used in the detection of high power density diesel engine gear.
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Description

Technical Field

[0001] This utility model relates to a special involute spline plug gauge for valve train gears in high power density diesel engines, belonging to the field of plug gauge technology. Background Technology

[0002] Currently, there is no dedicated spline plug gauge for existing diesel engine valve train gears, which makes the machining and inspection of diesel engine valve train gears very troublesome. It is impossible to quickly test the coaxiality and shape of diesel engine valve train gears, making them very inconvenient to use. Utility Model Content

[0003] To address the technical problems existing in the prior art, this utility model provides a special involute spline plug gauge for valve train gears of high power density diesel engines, which can effectively improve detection accuracy and efficiency.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is a special involute spline plug gauge for high power density diesel engine valve trains, including a plug gauge head and a handle. The handle is connected to one side of the plug gauge head. The plug gauge head has a columnar structure, and a first spline rack is provided on each side of the columnar structure. The first spline racks on both sides are symmetrically arranged. Two second spline racks are provided on the other two sides of the columnar structure. The first spline racks and the second spline racks on both sides are symmetrically arranged. The design parameters of the first spline racks and the second spline racks are the same as those of the diesel engine valve train.

[0005] Preferably, the included angle between the first spline rack and the second spline rack is 90°.

[0006] Preferably, mounting grooves are provided on both sides of the columnar structure, the first spline rack is disposed in the mounting groove, and a first mating interval is provided between the two sides of the first spline rack and the mounting groove, the first mating interval being adapted to the shape of the inverted first spline rack.

[0007] Preferably, a second mating interval is provided between the two second spline racks, and the second mating interval is adapted to the shape of the inverted second spline rack.

[0008] Preferably, the handle is provided with a knurled pattern, and the handle is provided with a flat surface along its length.

[0009] Compared with the prior art, the present invention has the following technical effects: The present invention adopts a multi-functional design, with first spline racks on both sides of the plug gauge head for detecting the coaxiality of the diesel engine valve train, and two second spline racks on the other two sides for detecting the shape of the diesel engine valve train. This can greatly improve the detection efficiency and accuracy of the diesel engine valve train, and realize the efficient comprehensive detection of spline tooth profile error parameters. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model.

[0011] Figure 2 This is a schematic diagram of the structure of the first spline rack and the second spline rack in this utility model. Detailed Implementation

[0012] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0013] like Figure 1 As shown, a special involute spline plug gauge for high power density diesel engine valve train includes a plug gauge head 1 and a handle 2. The handle 2 is connected to one side of the plug gauge head 1. The plug gauge head 1 has a columnar structure, and a first spline rack 3 is provided on each side of the columnar structure. The two first spline racks 3 are symmetrically arranged. Two second spline racks 4 are provided on the other two sides of the columnar structure. The first spline racks 3 and the second spline racks 4 are symmetrically arranged. The design parameters of the first spline racks 3 and the second spline racks 4 are the same as those of the diesel engine valve train.

[0014] This invention employs a plug gauge head 1 with a first spline rack 3 and a second spline rack 4 respectively arranged in two directions. The included angle between the first spline rack 3 and the second spline rack 4 is 90°, and the design parameters of the first spline rack 3 and the second spline rack 4 are the same as those of the diesel engine valve train. The first spline rack 3 can detect the coaxiality of the diesel engine valve train, and the two second spline racks 4 can detect the shape of the diesel engine valve train.

[0015] The columnar structure has mounting grooves 5 on both sides, and a first spline rack 3 is placed within the mounting groove 5. A first mating interval 6 is provided between the two sides of the first spline rack 3 and the mounting groove, and the first mating interval 6 is adapted to the shape of the inverted first spline rack 3. A second mating interval 7 is provided between the two second spline racks 4, and the second mating interval 7 is adapted to the shape of the inverted second spline rack 4. This design ensures a more reasonable design for the first spline rack 3 and the second spline rack 4, facilitating operation and providing convenient support and positioning during testing.

[0016] In addition, the handle 2 is provided with knurled texture and a flat surface 8 is provided along the length of the handle. This design ensures that the handle is more comfortable to hold and easier to operate, while the flat surface makes it more convenient to operate during inspection.

[0017] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model shall be included within the scope of the present utility model.

Claims

1. A special involute spline plug gauge for valve train gears in high-power-density diesel engines, characterized in that: The device includes a plug gauge head and a handle. The plug gauge head is connected to a handle on one side. The plug gauge head has a columnar structure, and a first spline rack is provided on each side of the columnar structure. The first spline racks on both sides are symmetrically arranged. Two second spline racks are provided on the other two sides of the columnar structure. The second spline racks on both sides are symmetrically arranged. The first spline racks and the second spline racks have the same design parameters as the valve train of a diesel engine.

2. The special involute spline plug gauge for valve train gears in high-power-density diesel engines according to claim 1, characterized in that: The included angle between the first spline rack and the second spline rack is 90°.

3. A special involute spline plug gauge for valve train gears in high-power-density diesel engines according to claim 1, characterized in that: The columnar structure has mounting grooves on both sides, and the first spline rack is set in the mounting groove. The gap between the two sides of the first spline rack and the mounting groove is provided with a first mating interval, which is adapted to the shape of the inverted first spline rack.

4. A special involute spline plug gauge for valve train gears in high-power-density diesel engines according to claim 1, characterized in that: A second mating interval is provided between the two second spline racks, and the second mating interval is adapted to the shape of the inverted second spline rack.

5. A special involute spline plug gauge for valve train gears in high-power-density diesel engines according to any one of claims 1-4, characterized in that: The handle is provided with a knurled pattern, and the handle is provided with a flat surface along its length.