Crankshaft single-side journal surface quenching inductor positioning device
By designing the quenching sensor positioning device on the surface of the crankshaft single-side journal, the combination of the positioning ring and the fixing ring is used to solve the inductor offset problem caused by artificial assisted positioning instability, and a higher quenching quality is achieved.
Patent Information
- Application Number
- CN202422499478.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-16
- Publication Date
- 2025-08-15
- Estimated Expiration
- 2034-10-16
AI Technical Summary
During the quenching process of the crankshaft single-side journal, artificial auxiliary positioning is unstable, causing the sensor to shift, affecting the quenching quality.
A single-sided crankshaft journal surface quenching sensor positioning device is designed. Through the combination of the positioning ring and the fixing ring, the positioning of both sides of the sensor is achieved to avoid the instability of manual assisted positioning.
It effectively avoids the deviation problem of the sensor and improves the positioning accuracy and quality of the unilateral journal crankshaft quenching.
Smart Images
Figure CN223226128U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of crankshaft processing, in particular to a positioning device. Background Art
[0002] To improve the fatigue strength of large crankshafts, surface hardening is often used for surface-strengthening heat treatment. This process utilizes a medium-frequency hardening inductor. When quenching some crankshafts on a single journal, the inductor can only be positioned on that journal, as only one side has an end face. Manual positioning is required on the other side, which is unstable and can lead to sensor offset during the quenching process, resulting in inaccurate positioning. Utility Model Content
[0003] In order to solve the above problems, the utility model discloses a crankshaft single-side journal surface quenching sensor positioning device.
[0004] The specific technical solutions are as follows:
[0005] A crankshaft single-sided journal surface quenching sensor positioning device includes a quenching sensor and a crankshaft. The quenching sensor is correspondingly arranged above the crankshaft journal. The device is arranged on one side of the quenching sensor. A positioning ring is sleeved on the outer side of the crankshaft journal. A fixing ring is arranged on one side of the positioning ring. The fixing ring and the positioning ring are connected by an adjusting bolt. The fixing ring is provided with a fixing bolt. The end face of the positioning ring is against the end face of the positioning block of the quenching sensor.
[0006] The circumferences of the fixing bolts are evenly distributed on the outer circle of the fixing ring, and the inner circle sizes of the positioning ring and the fixing ring are both larger than the outer diameter size of the crankshaft journal.
[0007] A locking nut is provided between the fixing ring and the positioning ring, and the locking nut is mounted on the adjusting bolt.
[0008] The utility model has the advantages that the positioning device is used to position the single-side journal quenching sensor on both sides, so as to avoid the problem of sensor deviation caused by unstable manual auxiliary positioning. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Figure 1 This is a schematic diagram of the structure of the utility model;
[0010] Figure 2 This is a schematic diagram of the positional relationship between the utility model and the quenching sensor. DETAILED DESCRIPTION
[0011] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0012] A crankshaft single-sided journal surface quenching sensor positioning device includes a quenching sensor 6 and a crankshaft 7. The quenching sensor is correspondingly arranged above the crankshaft journal 71. The device is arranged on one side of the quenching sensor 6. A positioning ring 2 is sleeved on the outer side of the crankshaft journal 71. A fixing ring 1 is arranged on one side of the positioning ring 2. The fixing ring 1 and the positioning ring 2 are connected by an adjusting bolt 4. A fixing bolt 3 is arranged on the fixing ring 1. The end face of the positioning ring 2 is abutted against the end face of the positioning block of the quenching sensor 6.
[0013] The fixing bolts 3 are evenly distributed on the outer circle of the fixing ring 1 , and the inner circle sizes of the positioning ring 2 and the fixing ring 1 are both larger than the outer diameter of the crankshaft journal 71 .
[0014] A locking nut 5 is provided between the fixing ring 1 and the positioning ring 2 , and the locking nut 5 is mounted on the adjusting bolt 4 .
[0015] The working principle of the present utility model is as follows: before quenching the crankshaft, the fixing ring 1 is first sleeved on the front end journal of the single-sided quenching journal of the crankshaft, and the fixing ring is fixed to the journal at the front end of the single-sided journal of the crankshaft by tightening the fixing bolt 3. Then, the distance between the positioning ring 2 and the single-sided journal of the crankshaft is adjusted by the adjusting bolt 4, and fixed with the locking nut 5 so that the distance between the positioning ring and the other side of the single-sided journal is consistent with the width of the sensor, thereby realizing the positioning of one side of the sensor.
[0016] By using this positioning device, the crankshaft single-side journal quenching sensor can be positioned on both sides to avoid the sensor offset problem caused by unstable manual assisted positioning and improve the quenching quality of the single-side journal crankshaft.
Claims
1. A crankshaft single-side journal surface quenching sensor positioning device, comprising a quenching sensor and a crankshaft, wherein the quenching sensor is correspondingly arranged above the crankshaft journal, and the device is arranged on one side of the quenching sensor, characterized in that: A positioning ring is sleeved on the outer side of the crankshaft journal, and a fixing ring is provided on one side of the positioning ring. The fixing ring and the positioning ring are connected by adjusting bolts. A fixing bolt is provided on the fixing ring, and the end face of the positioning ring is against the end face of the positioning block of the quenching sensor.
2. The crankshaft single-side journal surface quenching sensor positioning device according to claim 1, characterized in that: The circumferences of the fixing bolts are evenly distributed on the outer circle of the fixing ring, and the inner circle sizes of the positioning ring and the fixing ring are both larger than the outer diameter size of the crankshaft journal.
3. The crankshaft single-side journal surface quenching sensor positioning device according to claim 1, characterized in that: A locking nut is provided between the fixing ring and the positioning ring, and the locking nut is threadedly connected to the adjusting bolt.