Error-proofing device for detecting inductance of engine connecting rod

By designing error-proofing devices for connecting rod supports, rings, arc plates, and fiber optic sensors, the problem of fixed detection positions in existing devices has been solved, enabling flexible detection of different areas and specifications of the connecting rod, thus improving detection efficiency and safety.

CN224095097UActive Publication Date: 2026-04-07YUNNAN XIYI IND
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-29
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

Existing engine connecting rod inductance testing devices have fixed testing positions, making it difficult to flexibly adapt to the testing needs of different areas of the connecting rod. The adjustment operation is complicated, and there is a lack of universality for connecting rods of different specifications, which poses a safety hazard.

Method used

An error-proofing device was designed, comprising a connecting rod support, a circular ring, an arc plate, a limiting plate, and a fiber optic sensor. The device uses a screw to drive the axial movement of the circular ring and the rotation of the arc plate, enabling flexible detection of different areas and cross-sections of the connecting rod. The device can also be adjusted by the limiting block to accommodate connecting rods of different diameters.

Benefits of technology

It enables flexible and convenient testing of connecting rods, reduces operational difficulty and labor intensity, and improves testing efficiency and the versatility of the device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of connecting rod detection mistake proofing, and discloses an engine connecting rod inductance detection mistake proofing device which comprises a connecting rod support, a sliding groove formed in the bottom of the connecting rod support, a screw arranged in the sliding groove, a circular ring arranged on the peripheral side of the connecting rod support, and a connecting block installed on the bottom side of the inner wall of the circular ring. An annular clamping groove is formed in the outer wall of the circular ring, and an arc-shaped plate is arranged on the peripheral side of the circular ring. According to the utility model, the screw rod is rotated to drive the circular ring to axially move, so that the optical fiber sensor can accurately detect different areas of the connecting rod, the arc-shaped plate can be rotated to drive the optical fiber sensor to change the detection section by loosening the first screw rod through the convenient section detection angle adjustment design, the heavy connecting rod does not need to be moved, and the operation difficulty and the labor intensity are reduced; and through an adjustable limiting block structure, the depth of the limiting block is adjusted by loosening a second bolt, the depth of the optical fiber sensor can be flexibly changed, the detection requirements of connecting rods with different diameters are met, and the universality of the device is improved.
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Description

Technical Field

[0001] This utility model relates to the field of connecting rod detection and error prevention technology, specifically to an error prevention device for detecting the inductance of engine connecting rods. Background Technology

[0002] In the field of engine manufacturing, the connecting rod is a key component connecting the piston and the crankshaft, and its machining quality directly affects the engine's performance, reliability, and service life.

[0003] Engine connecting rod inductance testing is a key step in ensuring the machining accuracy and assembly quality of connecting rods. It plays a vital role in ensuring that the connecting rod's dimensional accuracy, shape accuracy, surface quality, and other indicators meet the design requirements.

[0004] In actual production processes, human error or equipment error is inevitable in equipment testing, which can affect the accuracy of test results. In order to effectively avoid such testing errors and improve production efficiency and product quality, the application of error-proofing devices is particularly necessary.

[0005] Existing error-proofing devices have fixed detection positions, making it difficult to flexibly adapt to the detection needs of different parts of the connecting rod, and the adjustment operation is complicated. When detecting different cross-sections, it is often necessary to laboriously rotate the heavy connecting rod, which is inconvenient to operate and poses safety hazards. At the same time, existing detection devices have poor applicability, usually only applicable to connecting rods of a specific diameter, and lack universality for detecting connecting rods of different specifications. Therefore, those skilled in the art provide an error-proofing device for detecting the inductance of engine connecting rods to solve the problems mentioned in the background art. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] To address the shortcomings of existing technologies, this utility model provides a fault-proofing device for testing the inductance of engine connecting rods. This addresses the problems of existing fault-proofing devices, such as fixed testing positions, difficulty in flexibly adapting to the testing needs of different areas of the connecting rod, complex adjustment operations, the need to laboriously rotate heavy connecting rods when testing different cross-sections, which is inconvenient and poses safety hazards, and poor applicability, typically only applicable to connecting rods of a specific diameter, lacking universality for testing connecting rods of different specifications.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, this utility model provides the following technical solution: a fault-prevention device for detecting the inductance of an engine connecting rod, comprising a connecting rod support, a groove at the bottom of the connecting rod support, a screw rod disposed within the groove, a ring on the periphery of the connecting rod support, a connecting block mounted on the bottom inner wall of the ring, an annular groove on the outer wall of the ring, an arc-shaped plate on the periphery of the ring, an arc-shaped retaining strip mounted on the inner wall of the arc-shaped plate, limit plates mounted on the front ends of the arc-shaped plate, limit blocks disposed on the limit plates, and fiber optic sensor transmitters and receivers respectively disposed on the front ends of the arc-shaped plate, the fiber optic sensor transmitters and receivers being arranged opposite each other, and a fiber optic sensor controller externally connected to the fiber optic sensor transmitters and receivers.

[0010] Preferably, the fiber optic sensor transmitter and the fiber optic sensor receiver are fixedly installed with the corresponding limiting block. The light emitted by the fiber optic sensor transmitter passes over the surface of the connecting rod, and the fiber optic sensor receiver receives the light emitted by the fiber optic sensor transmitter and sends the light to the fiber optic sensor controller. The fiber optic sensor controller compares the amount of light received with a reference value. If the amount of light received is greater than or equal to the reference value, the fiber optic sensor controller does not alarm; if the amount of light received is less than the reference value, the fiber optic sensor controller alarms.

[0011] Preferably, the ring is slidably engaged with the annular groove via a connecting block, and the screw is threadedly engaged with the connecting block. When the screw rotates, it can drive the ring to move, and the ring can move axially on the connecting rod support, thereby enabling the two fiber optic sensors to detect different areas of the connecting rod on the connecting rod support.

[0012] Preferably, the arc-shaped plate is slidably engaged with the annular groove via an arc-shaped locking strip. A first bolt is threaded onto the outer wall of the arc-shaped plate. The first bolt passes through the arc-shaped locking strip and presses against the inner wall of the annular groove. Loosening the first bolt allows the arc-shaped plate to rotate, thereby causing the two fiber optic sensors to rotate relative to each other. This allows for the detection of different cross-sections of the connecting rod, eliminating the need to rotate the heavy connecting rod and reducing the difficulty of detection.

[0013] Preferably, the limiting block is slidably engaged with the limiting plate, and a second bolt is threadedly connected to one side of the limiting block. The second bolt penetrates the limiting block and presses against the outer wall of the limiting plate. Loosening the second bolt can adjust the depth of the limiting block, thereby enabling the two fiber optic sensors to detect connecting rods of different diameters.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, this utility model provides a fault-proofing device for detecting the inductance of engine connecting rods, which has the following beneficial effects:

[0016] Through design, the error-proof device for engine connecting rod inductance detection in this utility model consists of a connecting rod support, a ring, an arc plate, a limiting plate, a fiber optic sensor transmitter, and a fiber optic sensor receiver. Rotating the screw drives the ring to move axially, enabling the fiber optic sensor to accurately detect different areas of the connecting rod. Utilizing a convenient cross-section detection angle adjustment design, loosening the first screw rotates the arc plate, causing the fiber optic sensor to change the detection cross-section, eliminating the need to move the heavy connecting rod, reducing operational difficulty and labor intensity, and improving detection efficiency. Furthermore, through the adjustable limiting block structure, loosening the second bolt adjusts the depth of the limiting block, flexibly changing the depth of the fiber optic sensor to adapt to the detection needs of connecting rods with different diameters, thus improving the device's versatility. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural schematic diagram of a fault-proofing device for detecting the inductance of an engine connecting rod provided in an embodiment of this application.

[0018] Figure 2 This is a schematic diagram of the arc-shaped retaining strip in an engine connecting rod inductance detection error prevention device provided in an embodiment of this application.

[0019] Figure 3 This is a structural cross-sectional view of the connecting rod support in an engine connecting rod inductance detection error prevention device provided in an embodiment of this application.

[0020] In the diagram: 1. Connecting rod support; 2. Slide groove; 3. Screw; 4. Ring; 5. Connecting block; 6. Annular groove; 7. Arc plate; 8. Arc strip; 9. First bolt; 10. Limiting plate; 11. Limiting block; 12. Second bolt; 13. Fiber optic sensor transmitter; 14. Fiber optic sensor receiver. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] This utility model provides a technical solution: a fault-prevention device for detecting the inductance of an engine connecting rod. (See also...) Figure 1 , Figure 2 , Figure 3The system includes a connecting rod support 1, a sliding groove 2 at the bottom of the connecting rod support 1, a screw 3 inside the sliding groove 2, a ring 4 around the periphery of the connecting rod support 1, a connecting block 5 installed on the bottom inner wall of the ring 4, an annular groove 6 on the outer wall of the ring 4, an arc-shaped plate 7 around the periphery of the ring 4, an arc-shaped retaining strip 8 installed on the inner wall of the arc-shaped plate 7, limit plates 10 installed on the front sides of both ends of the arc-shaped plate 7, limit blocks 11 installed on the limit plates 10, and fiber optic sensor transmitters 13 and fiber optic sensor receivers 14 respectively installed on the front sides of both ends of the arc-shaped plate 7. The fiber optic sensor transmitters 13 and 14 are arranged opposite each other. The fiber optic sensor receiver 14 is externally connected to a fiber optic sensor controller. The fiber optic sensor transmitter 13 and the fiber optic sensor receiver 14 are fixedly installed with the corresponding limit block 11. The light emitted by the fiber optic sensor transmitter 13 is emitted towards the connecting rod and passes over its surface. The fiber optic sensor receiver 14 receives the light emitted by the fiber optic sensor transmitter 13 and sends the light to the fiber optic sensor controller. The fiber optic sensor controller compares the amount of light received with a reference value. If the amount of light received is greater than or equal to the reference value, the fiber optic sensor controller does not alarm. If the amount of light received is less than the reference value, the fiber optic sensor controller alarms.

[0023] Please see Figure 1 , Figure 2 , Figure 3 The circular ring 4 is slidably engaged with the annular groove 6 via the connecting block 5. The screw 3 is threadedly engaged with the connecting block 5. When the screw rotates, it can drive the circular ring 4 to move. The circular ring 4 can move axially on the connecting rod support 1, thereby enabling the two fiber optic sensors to detect different areas of the connecting rod on the connecting rod support 1. The arc-shaped plate 7 is slidably engaged with the annular groove 6 via the arc-shaped retaining strip 8. A first bolt 9 is threadedly connected to the outer wall of the arc-shaped plate 7. The first bolt 9 penetrates the arc-shaped retaining strip 8 and presses against the inner wall of the annular groove 6. Loosening the first bolt 9 allows... Rotating the arc plate 7 causes the two fiber optic sensors to rotate relative to each other, enabling the detection of different cross-sections of the connecting rod. This eliminates the need to rotate the heavy connecting rod, reducing the difficulty of detection. The limiting block 11 is slidably engaged with the limiting plate 10. A second bolt 12 is threaded onto one side of the limiting block 11. The second bolt 12 penetrates the limiting block 11 and presses against the outer wall of the limiting plate 10. Loosening the second bolt 12 allows the depth of the limiting block 11 to be adjusted, enabling the two fiber optic sensors to detect connecting rods of different diameters.

[0024] The fault-proof device for detecting the inductance of engine connecting rod in this utility model consists of a connecting rod support 1, a ring 4, an arc plate 7, a limiting plate 10, a fiber optic sensor transmitter 13, and a fiber optic sensor receiver 14. The fiber optic sensor transmitter 13 and the fiber optic sensor receiver 14 are externally connected to a fiber optic sensor controller.

[0025] The fiber optic sensor transmitter 13 and the fiber optic sensor receiver 14 are slidably engaged with the limiting plates 10 at both ends of the arc plate 7 via the limiting block 11, and are positioned by the second bolt 12. The fiber optic sensor transmitter 13 and the fiber optic sensor receiver 14 are arranged opposite each other. The light emitted by the fiber optic sensor transmitter 13 is emitted towards the connecting rod and passes over its surface. The fiber optic sensor receiver 14 receives the light emitted by the fiber optic sensor transmitter 13 and sends the light to the fiber optic sensor controller. The fiber optic sensor controller compares the amount of light received with a reference value. If the amount of light received is greater than or equal to the reference value, the fiber optic sensor controller does not alarm. If the amount of light received is less than the reference value, the fiber optic sensor controller alarms.

[0026] A groove 2 is provided at the bottom of the connecting rod support 1, and a screw 3 is provided in the groove 2. A connecting block 5 is installed on the inner side of the ring 4. The ring 4 is slidably engaged with the groove 2 through the connecting block 5, and the connecting block 5 is threadedly engaged with the screw 3. When the screw rotates, it can drive the ring 4 to move. The ring 4 can move axially on the connecting rod support 1, so that the two fiber optic sensors can detect the connecting rod on the connecting rod support 1 in different areas.

[0027] An annular groove 6 is provided on the outer wall of the ring 4, and an arc plate 7 is provided on the periphery of the outer wall of the ring 4. An arc-shaped locking strip 8 installed on the inner side of the arc plate 7 is rotatably engaged with the annular groove 6. A first bolt 9 passes through the arc plate 7. When the first bolt 9 is loosened, the arc plate 7 can be rotated, thereby causing the two fiber optic sensors to rotate relative to each other, thus enabling the detection of different cross-sections of the connecting rod. This eliminates the need to rotate the heavy connecting rod, reducing the difficulty of detection.

[0028] Limiting plates 10 are installed at both ends of the arc-shaped plate 7, and limiting blocks 11 are slidably engaged on the limiting plates 10. A second bolt 12 is installed on one side of the limiting block 11. By loosening the second bolt 12, the depth of the limiting block 11 can be adjusted, thereby allowing the two fiber optic sensors to detect connecting rods of different diameters. It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0029] In this document, unless otherwise expressly specified and limited, the terms "installation," "setting," "connection," "fixing," "screw connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise expressly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fault-prevention device for detecting the inductance of an engine connecting rod, comprising a connecting rod support (1), characterized in that: The bottom of the connecting rod support (1) is provided with a sliding groove (2), and a screw (3) is provided in the sliding groove (2). A ring (4) is provided on the periphery of the connecting rod support (1). A connecting block (5) is installed on the bottom side of the inner wall of the ring (4). An annular groove (6) is provided on the outer wall of the ring (4). An arc plate (7) is provided on the periphery of the ring (4). An arc strip (8) is installed on the inner wall of the arc plate (7). A limit plate (10) is installed on the front side of both ends of the arc plate (7). A limit block (11) is provided on the limit plate (10). A fiber optic sensor transmitter (13) and a fiber optic sensor receiver (14) are respectively provided on the front side of both ends of the arc plate (7). The fiber optic sensor transmitter (13) and the fiber optic sensor receiver (14) are arranged opposite to each other.

2. The error-proofing device for detecting the inductance of an engine connecting rod according to claim 1, characterized in that: The ring (4) is slidably engaged with the annular groove (6) through the connecting block (5), and the screw (3) is threadedly engaged with the connecting block (5).

3. The error-proofing device for detecting the inductance of an engine connecting rod according to claim 1, characterized in that: The arc plate (7) is slidably engaged with the annular groove (6) by the arc-shaped clip (8).

4. The error-proofing device for detecting the inductance of an engine connecting rod according to claim 1, characterized in that: The outer wall of the arc plate (7) is threaded with a first bolt (9), which penetrates the arc-shaped retaining strip (8) and presses against the inner wall of the annular groove (6).

5. The error-proofing device for detecting the inductance of an engine connecting rod according to claim 1, characterized in that: The limiting block (11) is slidably engaged with the limiting plate (10). A second bolt (12) is threadedly connected to one side of the limiting block (11). The second bolt (12) passes through the limiting block (11) and presses against the outer wall of the limiting plate (10).

6. The error-proofing device for detecting the inductance of an engine connecting rod according to claim 1, characterized in that: The fiber optic sensor transmitter (13) and fiber optic sensor receiver (14) are fixedly installed with the corresponding limiting block (11).