Crankshaft dynamic balance detection device

The adjustable clamping mechanism and transmission rod design solve the problem of installation complexity of crankshaft dynamic balancing testing devices, achieving stable connection and efficient testing of crankshafts, and improving the flexibility and accuracy of testing.

CN223808038UActive Publication Date: 2026-01-16BAOTOU HAOTIAN IND EQUIPMENT CO LTD
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Patent Information

Application Number
CN202520547322.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-26
Publication Date
2026-01-16
Estimated Expiration
2035-03-26

AI Technical Summary

Technical Problem

The transmission components of existing crankshaft dynamic balancing testing devices have a fixed connection method, which makes it difficult to adapt to crankshafts of different shapes and sizes, resulting in complex installation and limited flexibility and applicability.

Method used

It adopts an adjustable clamping mechanism and transmission rod design, including a first clamping seat, a second clamping seat, a first transmission rod, and a second transmission rod. It is connected to a servo motor through a connecting flange to achieve stable and flexible crankshaft fixing and power transmission.

Benefits of technology

It improves the stability and accuracy of crankshaft testing, simplifies the installation process, and ensures the accuracy and efficiency of test results.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a crankshaft dynamic balance detection device, which belongs to the technical field of crankshaft dynamic balance detection, and is characterized in that two support frames are respectively provided with a first clamping seat and a second clamping seat, and the upper ends of the first clamping seat and the second clamping seat are respectively provided with a detection assembly; a first transmission rod and a second transmission rod are arranged in the first clamping seat and the second clamping seat respectively, and the first transmission rod is connected with the servo motor through a transmission device; the inner end of the first transmission rod is provided with a connecting flange, and is connected with a to-be-detected crankshaft through the connecting flange. The transmission mechanism realizes stable connection and power transmission between the servo motor and the crankshaft to be detected through the design of a first transmission rod and a second transmission rod. Through the design, the detection efficiency is improved, and the continuity and stability of the detection process are ensured. The detection mechanism carries out accurate dynamic balance detection on the crankshaft through the detection assembly, and the quality and performance of the crankshaft are ensured. The detection assembly can accurately detect the dynamic balance of the crankshaft in real time and adjust the dynamic balance according to the result.
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Description

TECHNICAL FIELD

[0001] The utility model relates to crankshaft dynamic balance detection technical field, especially a kind of crankshaft dynamic balance detection device. BACKGROUND

[0002] Crankshaft dynamic balance detection device, usually also be called crankshaft full-automatic balancing machine or crankshaft dynamic balancing machine, is a kind of equipment specially used for detecting and correcting the unbalance state of crankshaft.Crankshaft dynamic balance detection device can accurately detect the unbalance amount generated in the rotating process of crankshaft by advanced sensor system, control system and computer technology, and automatically corrects to ensure the stability and reliability of crankshaft in high-speed operation.

[0003] The transmission assembly of current crankshaft dynamic balance detection device generally adopts relatively fixed connection mode, such as connecting motor and crankshaft through universal joint, shaft coupling and other components.This connection mode guarantees the stability and precision of transmission to a certain extent, but also brings difficulty in adjustment.Due to the limitation of connection mode, the installation between transmission assembly and crankshaft to be detected is often cumbersome, and a lot of time and energy are needed to accurately center and fix.

[0004] Due to the difference in shape and size of crankshaft to be detected caused by different production batches and models, the connection mode of transmission assembly is often difficult to adapt to such diversity, which further increases the difficulty and complexity of installation connection, so that the flexibility and applicability of crankshaft dynamic balance detection device are limited in actual use. SUMMARY

[0005] The main purpose of the utility model is to provide a kind of crankshaft dynamic balance detection device, which can effectively solve the problems raised in the background art.

[0006] To achieve the above-mentioned purpose, the technical scheme adopted by the utility model is as follows:

[0007] A kind of crankshaft dynamic balance detection device, comprising chassis, servo motor and support frame, two support frames are installed on the chassis, and the servo motor is installed on the chassis;

[0008] First clamping seat and second clamping seat are respectively installed on the two support frames, detection assembly is installed on the upper end of first clamping seat and second clamping seat, first transmission rod and second transmission rod are respectively arranged in first clamping seat and second clamping seat, and first transmission rod is connected with servo motor through transmission device;

[0009] The inner end of first transmission rod is provided with a connecting flange, and the crankshaft to be detected is connected through the connecting flange, and the second transmission rod abuts against the crankshaft to be detected, and the dynamic balance of transmission rod and the crankshaft to be detected is detected through detection assembly.

[0010] As an optional scheme of the utility model, the support frame is designed as a "U" shape in cross section, and the support frame is fixed on the base frame through bolts, nuts and anti-skid washers; the first clamping seat and the second clamping seat are fixed on the support frame through bolts;

[0011] As an optional scheme of the utility model, the first clamping seat and the second clamping seat are identical in structure and each include a clamping rod and a distance adjusting rod, the distance adjusting rod is located below the clamping rod, and when the distance adjusting rod is adjusted, the clamping rod moves upwards to wrap the clamping rod, and the upper end of the first clamping seat and the second clamping seat is provided with a U-shaped support, and the detection assembly is installed on the U-shaped support through bolts;

[0012] As an optional scheme of the utility model, the detection assembly includes a detection piece and an adjuster, the detection piece is located at the lower end of the adjuster, the fixed block of the adjuster is fixed on the U-shaped support through bolts, the sliding rail of the adjuster is inserted into the opening of the fixed block and fixed through bolts;

[0013] As an optional scheme of the utility model, the first transmission rod and the second transmission rod are identical in diameter, the connecting flange is designed integrally with the first transmission rod, and a plurality of connecting screw holes are formed in the end face of the connecting flange;

[0014] As an optional scheme of the utility model, the to-be-detected crankshaft is connected to the connecting flange, the threaded hole on the to-be-detected crankshaft is opposite to the connecting screw hole, and the bolt is inserted into the connecting screw hole to fix the to-be-detected crankshaft and the first transmission rod.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The clamping mechanism adjusts the positions of the transmission rod and the to-be-detected crankshaft through the design of the first clamping seat and the second clamping seat, thereby ensuring the stability and firmness of the to-be-detected crankshaft during detection. The distance adjusting rod and the clamping rod are used in cooperation, so that the clamping mechanism can be adjusted according to different sizes of the crankshaft, precise wrapping and clamping of the crankshaft are realized, and the accuracy of the detection result is effectively avoided from being affected by shaking or loosening of the crankshaft during detection.

[0017] The transmission mechanism realizes stable connection and power transmission between the servo motor and the to-be-detected crankshaft through the design of the first transmission rod and the second transmission rod. The first transmission rod is connected with the servo motor through a transmission device, thereby ensuring stable input of power; the second transmission rod plays a role in supporting and positioning, thereby further enhancing the stability of the crankshaft. This design not only improves the detection efficiency, but also ensures the continuity and stability of the detection process.

[0018] The detection mechanism conducts accurate dynamic balance detection on the crankshaft through the detection assembly, ensuring the quality and performance of the crankshaft. The detection assembly can conduct real-time and accurate detection on the dynamic balance of the crankshaft, and make necessary adjustments according to the detection results. This design not only improves the accuracy and reliability of the detection, but also provides strong technical support for the production and quality control of the crankshaft. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a side view of the overall structure of the utility model;

[0021] Figure 3 It is a display diagram of part of the clamping seat, transmission rod and crankshaft to be detected of the utility model;

[0022] Figure 4 It is a schematic diagram of part of the clamping seat, transmission rod and crankshaft to be detected of the utility model.

[0023] In the figure: 1, underframe; 2, servo motor; 3, transmission device; 4, support frame; 5, first clamping seat; 6, detection assembly; 7, first transmission rod; 8, connecting flange; 9, connecting screw hole; 10, crankshaft to be detected; 11, second clamping seat; 12, second transmission rod. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, purposes and effects achieved by the utility model easy to understand, the utility model is further described below in combination with specific implementation manners.

[0025] As shown in Figure 1 - Figure 4 A crankshaft dynamic balance detection device mainly consists of an underframe 1, a servo motor 2 and a support frame 4. The underframe 1 serves as the basis of the entire device, and the support frame 4 is carefully designed and installed on the underframe 1 to ensure the stability and reliability of the device. The servo motor 2 is also ingeniously installed on the underframe 1 to provide power for the entire detection device.

[0026] On the two support frames 4, a first clamping seat 5 and a second clamping seat 11 are respectively installed, and these two clamping seats are the key parts of the detection device. The upper ends of the two clamping seats are both provided with a detection assembly 6 for accurate dynamic balance detection of the crankshaft. The inner parts of the first clamping seat 5 and the second clamping seat 11 are respectively provided with a first transmission rod 7 and a second transmission rod 12, and these transmission rods are important components for connecting the servo motor 2 and the crankshaft to be detected 10. The first transmission rod 7 is connected with the servo motor 2 through a transmission device 3, ensuring the transmission of power.

[0027] The inner end of the first transmission rod 7 is designed with a connecting flange 8, which is used to connect the crankshaft 10 to be detected. The second transmission rod 12 plays a supporting and positioning role, ensuring the stability of the crankshaft 10 to be detected during the detection process. Through the detection assembly 6, accurate dynamic balance detection of the transmission rod and the crankshaft 10 to be detected can be performed, thereby ensuring the quality and performance of the crankshaft.

[0028] The support frame 4 is designed very uniquely, with a "U" shape in cross-section. Such a design not only looks beautiful, but also provides sufficient support strength. The support frame 4 is firmly fixed on the chassis 1 by bolts, nuts and anti-skid washers, ensuring the stable operation of the device. The first clamping seat 5 and the second clamping seat 11 are also fixed on the support frame 4 by bolts, further enhancing the overall stability of the device.

[0029] The first clamping seat 5 and the second clamping seat 11 are designed consistently, both including a clamping rod and a distance adjusting rod. The distance adjusting rod is located below the clamping rod, and when the distance adjusting rod is adjusted, the clamping rod will move upwards, thereby realizing the wrapping and clamping of the crankshaft. In addition, the upper end of the first clamping seat 5 and the second clamping seat 11 is provided with a U-shaped bracket, and the detection assembly 6 is installed on the U-shaped bracket by bolts, ensuring the stability and accuracy of the detection assembly 6.

[0030] The detection assembly 6 is the core part of the entire detection device, which includes a detection piece and an adjuster. The detection piece is located at the lower end of the adjuster and can accurately detect the dynamic balance of the crankshaft. The fixed block of the adjuster is fixed on the U-shaped bracket by bolts, and the sliding rail of the adjuster is inserted into the opening of the fixed block and tightly fixed by bolts, ensuring the stability and reliability of the adjuster.

[0031] In order to ensure the connection between the transmission rod and the crankshaft 10 to be detected is more firm, the diameters of the first transmission rod 7 and the second transmission rod 12 are designed to be consistent. The connecting flange 8 is designed integrally with the first transmission rod 7, and a plurality of connecting screw holes 9 are provided on the end face thereof, which are used to connect with the threaded holes of the crankshaft 10 to be detected. By inserting the bolts into the connecting screw holes 9, the firm connection between the crankshaft 10 to be detected and the first transmission rod 7 can be achieved, thereby ensuring the stability and accuracy of the detection process.

[0032] Put the chassis 1 in place. Fix the servo motor 2 in the designated position of the chassis 1. Fix the support frame 4 on the chassis 1 by bolts, nuts and anti-skid washers, ensuring its stability. Connect the transmission device 3 to the servo motor 2. Connect the first transmission rod 7 to the servo motor 2 through the transmission device 3. Install the second transmission rod 12 in the appropriate position of the support frame 4. Fix the first clamping seat 5 and the second clamping seat 11 on the support frame 4 by bolts. Ensure the consistency of the structure of the clamping seat, including the clamping rod and the distance adjusting rod. Install the detection assembly 6 on the U-shaped bracket of the first clamping seat 5 and the second clamping seat 11 by bolts. The connecting flange 8 is designed integrally with the first transmission rod 7, ensuring that the connecting screw hole 9 at the end surface is connected with the threaded hole of the crankshaft 10 to be detected.

[0033] Prepare the crankshaft 10 to be detected, ensuring that the threaded hole is clean and free of foreign matter. Insert the crankshaft 10 to be detected into the screw hole of the connecting flange 8 by bolts, ensuring firm connection. Adjust the distance adjusting rod of the first clamping seat 5 and the second clamping seat 11, so that the clamping rod moves upward and wraps and clamps the crankshaft. Start the servo motor 2, so that the transmission rod drives the crankshaft to rotate. Use the detection assembly 6 to perform accurate dynamic balance detection on the crankshaft. The detection assembly accurately detects the dynamic balance of the crankshaft, and the adjuster makes necessary adjustments. Analyze the detection data to determine whether the crankshaft meets the quality standards. Stop the servo motor 2, remove the crankshaft, and complete the dynamic balance detection process.

[0034] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one from another entity or action, without necessarily requiring or implying any actual such relationship or order between such entities or actions. The terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element preceded by "comprises... a" does not, without more constraints, foreclose the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0035] The basic principles and main features of the present application and the advantages of the present application have been shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A crankshaft dynamic balance detection device, comprising a chassis (1), a servo motor (2) and a support frame (4), two of the support frames (4) are installed on the chassis (1), and the servo motor (2) is installed on the chassis (1), characterized in that: Two said support frame (4) are respectively installed with first clamping seat (5), second clamping seat (11), the upper end of first clamping seat (5) and second clamping seat (11) is installed with detection assembly (6), the inside of first clamping seat (5) and second clamping seat (11) is equipped with first transmission rod (7), second transmission rod (12) respectively, first transmission rod (7) is connected with servo motor (2) through transmission device (3); The inner end of first transmission rod (7) is equipped with connecting flange (8), to be detected crankshaft (10) is connected through connecting flange (8), second transmission rod (12) abuts to be detected crankshaft (10), and the dynamic balance detection of transmission rod, to be detected crankshaft (10) is carried out through detection assembly (6).

2. A device for detecting dynamic balance of a crankshaft according to claim 1, characterized in that: The cross section of support frame (4) is designed as "U" shape, and the support frame (4) is fixed on the base frame (1) through bolts, nuts and anti-skid washers, and the first clamping seat (5) and the second clamping seat (11) are fixed on the support frame (4) through bolts.

3. A device for detecting the dynamic balance of a crankshaft according to claim 2, characterized in that: The first clamping seat (5) and the second clamping seat (11) are consistent in structure and each include a clamping rod and a distance adjusting rod, the distance adjusting rod is located below the clamping rod, when the distance adjusting rod adjusts the distance, the clamping rod moves upward and then wraps the clamping rod, the upper end of the first clamping seat (5) and the second clamping seat (11) is provided with a U-shaped support, and the detection assembly (6) is installed on the U-shaped support through bolts.

4. A device for detecting the dynamic balance of a crankshaft according to claim 3, characterized in that: The detection assembly (6) includes a detection piece and an adjuster, the detection piece is located at the lower end of the adjuster, the fixed block of the adjuster is fixed on the U-shaped support through bolts, the slide rail of the adjuster is inserted into the opening of the fixed block, and the two are fixed through bolts.

5. A device for detecting the dynamic balance of a crankshaft according to claim 4, characterized in that: The first transmission rod (7) and the second transmission rod (12) are consistent in diameter, the connecting flange (8) is designed integrally with the first transmission rod (7), and a plurality of connecting screw holes (9) are formed in the end face of the connecting flange (8).

6. A device for detecting the dynamic balance of a crankshaft according to claim 5, characterized in that: The to-be-detected crankshaft (10) is connected with the connecting flange (8), the threaded hole of the to-be-detected crankshaft (10) is opposite to the connecting screw hole (9), and the bolt is inserted into the connecting screw hole (9) to fix the to-be-detected crankshaft (10) and the first transmission rod (7).