Diesel engine angle encoder automatic adjusting system and method

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By designing an automatic adjustment system on the diesel engine angle encoder and automatically stopping is achieved using the motor and start-stop control circuit, the problem of insufficient accuracy of the angle encoder and the need for two personnel to debug is solved, which improves adjustment accuracy and saves labor costs.

CN119268748APending Publication Date: 2025-01-07CHINA SHIPBUILDING IND GRP DIESEL ENGINE CO LTD

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Patent Information

Application Number: CN202411430287.1
Authority / Receiving Office: CN · China
Patent Type: Applications(China)
Current Assignee / Owner
Filing Date: 2024-10-14
Publication Date: 2025-01-07

AI Technical Summary

Technical Problem

During the debugging stage of low-speed diesel engines in the shipyard, the accuracy of the angle encoder is insufficient and needs frequent adjustments. The existing debugging method requires the cooperation of two personnel, which is time-consuming and labor-intensive.

Method used

An automatic adjustment system for the angle encoder of diesel engine is designed, including a motor, a start-stop control circuit and a fixed ring. It is connected to the bearing transmission of the motor and the angle encoder through the motor. The start-stop control circuit is used to realize that the motor automatically stops at a specific angle, reducing repeated adjustments. and manually start and stop through remote control handle.

Benefits of technology

Improves the adjustment accuracy of the angle encoder, reduces the rate of repeated adjustments, saves labor costs, and allows a single person to complete the debugging.

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Abstract

The invention discloses an automatic adjusting system and method for a diesel engine angle encoder, and belongs to the technical field of angle encoder debugging. Comprising a motor, a start-stop control circuit and a fixing ring arranged on the circumferential side of the angle encoder in a sleeving mode. The motor is arranged on the circumferential side of the fixing ring and is in transmission connection with a bearing of the angle encoder; and the start-stop control circuit is electrically connected with the motor so as to control the motor to automatically stop after the angle encoder rotates to a specific angle through the start-stop control circuit. The angle adjusting accuracy of the angle encoder can be improved, the repeated adjusting ratio of the angle encoder is reduced, and the angle encoder of the diesel engine on the ship can be adjusted by one person; the problem that debugging of an angle encoder in the prior art is time-consuming and labor-consuming and can be completed by cooperation of multiple persons is solved.

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Description

Technical Field

[0001] The invention relates to the technical field of angle encoder debugging, and in particular to an automatic adjustment system and method for an angle encoder of a diesel engine. Background Art

[0002] The statements herein merely provide background information related to the present invention and do not necessarily constitute prior art.

[0003] During the commissioning phase of the low-speed diesel engine in the shipyard, the angle encoder on the main engine basically needs to be readjusted after the main engine of the low-speed diesel engine is delivered from the main engine manufacturer to the shipyard.

[0004] When debugging an angle encoder, it is often the case that after adjustment, the accuracy of the angle encoder is insufficient, resulting in the need for readjustment. In addition, the debugging of the existing angle encoder requires two debuggers to cooperate with each other, which is time-consuming and laborious. Summary of the invention

[0005] In view of the deficiencies in the prior art, the purpose of the embodiments of the present invention is to provide a diesel engine angle encoder automatic adjustment system and method, so as to realize automatic adjustment of the angle encoder, effectively improve the accuracy of the angle adjustment of the angle encoder, reduce the rate of repeated adjustment of the angle encoder, and save labor costs.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] In a first aspect, the present invention provides an automatic adjustment system for an angle encoder of a diesel engine;

[0008] A diesel engine angle encoder automatic adjustment system, comprising a motor, a start-stop control circuit and a fixed ring sleeved on the circumference of the angle encoder;

[0009] The motor is arranged on the circumferential side of the fixing ring, and the motor is transmission-connected to the bearing of the angle encoder;

[0010] The start-stop control circuit is electrically connected to the motor so as to control the motor to start and automatically stop after the angle encoder rotates to a specific angle.

[0011] In some embodiments, it further comprises a toothed synchronous belt and a bearing sleeve, wherein the bearing sleeve is sleeved on the bearing;

[0012] One end of the toothed synchronous belt is meshed with the motor, and the other end of the toothed synchronous belt is meshed with the bearing gear sleeve.

[0013] In some embodiments, the bearing sleeve includes a first body and a second body connected end to end, and a bearing magnet is provided at the connection between the first body and the second body.

[0014] In some embodiments, a positioning pin is provided on the inner side of the bearing sleeve.

[0015] In some embodiments, the start-stop control circuit includes a power supply, a relay, a contactor, an amplifier internal control switch, a start button, a stop button, and an amplifier indicator light;

[0016] The power supply is electrically connected to the contactor, and the contactor is electrically connected to the motor; the start button is electrically connected to the stop button, and the stop button is electrically connected to the relay, and the relay is electrically connected to the contactor; the amplifier internal control switch is electrically connected to the relay, and the relay is electrically connected to the amplifier indicator light.

[0017] In some embodiments, a remote control handle is further included, and the start button and the stop button are arranged on the remote control handle.

[0018] In some embodiments, the initial state of the start button is open, and the initial state of the stop button is closed.

[0019] In some embodiments, the fixing ring includes a hinge, a locking bolt, and a first clamp and a second clamp connected end to end;

[0020] The head end of the first clamp is connected to the tail end of the second clamp via the hinge, and the tail end of the first clamp is connected to the head end of the second clamp via a locking bolt.

[0021] In some embodiments, a limiting ring is provided on the circumferential side of the first clamp, and the limiting ring is sleeved on the motor.

[0022] In a second aspect, the present invention provides a method for automatically adjusting a diesel engine angle encoder;

[0023] A diesel engine angle encoder automatic adjustment method, based on the diesel engine angle encoder automatic adjustment system, comprises:

[0024] Install the fixing ring on the angle encoder, install the motor on the fixing ring, and make the motor and the bearing of the angle encoder transmission connected;

[0025] The motor is started by the starting control circuit. The rotation of the motor drives the bearing of the angle encoder to rotate. When it rotates to a specific angle, the start-stop control circuit controls the motor to stop automatically.

[0026] The technical solution provided in the present invention has at least the following technical effects or advantages:

[0027] 1. The technical solution provided by the present invention is to install the diesel engine angle encoder automatic adjustment system on the angle encoder, and use the cooperation of the motor and the bearing gear sleeve and other components such as the fixed ring to drive the bearing of the angle encoder to rotate; at the same time, the start-stop control circuit is used to start the motor and when the angle encoder bearing rotates to the corresponding angle, the motor automatically stops, thereby reducing the repeated adjustment rate of the angle encoder and effectively improving the accuracy of the angle encoder adjustment angle.

[0028] 2. The technical solution provided by the present invention can also control the manual start and manual stop of the motor through the remote control handle, thereby improving the flexibility of operation.

[0029] 3. The technical solution provided by the present invention is scientifically and reasonably designed, simple and convenient to use, and when there are insufficient personnel on board, a single person can debug the angle encoder. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0031] Figure 1 It is a schematic diagram of the assembly of the diesel engine angle encoder automatic adjustment system provided by an embodiment of the present invention;

[0032] Figure 2 1 is a schematic diagram of the assembly of the automatic adjustment system of the diesel engine angle encoder provided by an embodiment of the present invention;

[0033] Figure 3 is a schematic structural diagram of a fixing ring provided by an embodiment of the present invention;

[0034] Figure 4 is a schematic diagram of the structure of a motor provided by an embodiment of the present invention;

[0035] Figure 5 is a schematic structural diagram of a bearing sleeve provided in an embodiment of the present invention;

[0036] Figure 6 is a schematic structural diagram of a toothed synchronous belt provided by an embodiment of the present invention;

[0037] Figure 7 is a schematic diagram of the structure of a remote control handle provided by an embodiment of the present invention;

[0038] Figure 8 is a schematic structural diagram of an angle encoder provided by an embodiment of the present invention;

[0039] Fig. 9 is a schematic diagram of the structure of an amplifier provided by an embodiment of the present invention;

[0040] Fig.10 is a circuit diagram of a start-stop control circuit provided by an embodiment of the present invention;

[0041] In the figure: 1. Motor; 2. Fixing ring; 2-1. Hinge; 2-2. Notch; 3. Locking bolt; 4. Nut; 5. Bearing sleeve; 5-1. Locating pin; 5-2. Bearing magnet; 6. Toothed synchronous belt; 6-1. Connecting plate; 6-2. Bolt; 7. Remote control handle; 7-1. Start button; 7-2. Stop button; 9. Angle encoder; 9-1. Adjustment hole; 9-2. Bearing; 10. Amplifier indicator light.

[0042] In order to show the positions of various parts, the distances or sizes between them are exaggerated and the schematic diagram is for reference only. DETAILED DESCRIPTION

[0043] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0044] As described in the background art, the adjustment method of the angle encoder 9 in the prior art relies on the cooperation of two persons, and the repetitive adjustment rate is high. In order to solve the above technical problems, the present invention proposes an automatic adjustment system for a diesel engine angle encoder.

[0045] Combination Figure 1-Figure 10 The diesel engine angle encoder automatic adjustment system includes a fixed ring 2 sleeved on the circumferential side of the angle encoder 9, a motor 1, a start-stop control circuit, a toothed synchronous belt 6 and a bearing gear sleeve 5; the angle encoder 9 includes a main body and a bearing 9-2, the bearing 9-2 is horizontally installed at the end of the bearing 9-2 along the height direction of the main body, a plurality of adjustment holes 9-1 are opened on the circumferential side of the bearing 9-2, and the bearing gear sleeve 5 is sleeved on the bearing 9-2. The motor 1 is installed on the circumferential side of the fixed ring 2, and a gear is fixed on the output end of the motor 1, the gear is meshed with one end of the toothed synchronous belt 6, and the other end of the gear synchronous belt is meshed with the bearing gear sleeve 5; thereby realizing the transmission connection between the motor 1 and the bearing 9-2, and the rotation of the bearing 9-2 can be driven by the rotation of the motor 1. The motor 1 is electrically connected to the start-stop control circuit, and the motor 1 can be started by the start-stop control circuit. The motor 1 receives the instruction and starts. As the motor 1 rotates, the bearing 9-2 rotates a certain angle. When it rotates to a specific angle, the start-stop control circuit is started and the motor 1 stops moving.

[0046] As an embodiment, a remote control handle 7 is also included, and the start-stop control circuit includes a power supply, a start button 7-1, a stop button 7-2, a relay K1, a contactor KM1 and an amplifier indicator light 11. The start button 7-1 and the stop button 7-2 are installed on the remote control handle 7; the power supply is electrically connected to the normally open switch of the contactor KM1, and the normally open switch of the contactor KM1 is electrically connected to the motor 1; the positive electrode of the power supply is electrically connected to the first end of the start button 7-1, the second end of the start button 7-1 is electrically connected to the first end of the stop button 7-2, the second end of the stop button 7-2 is electrically connected to the normally closed switch of the relay K1, the normally closed switch of the relay K1 is electrically connected to the coil of the contactor KM1, and the coil of the contactor KM1 is electrically connected to the negative electrode of the power supply. The positive electrode of the power supply is electrically connected to the internal control switch of the amplifier, the internal control switch of the amplifier is electrically connected to the coil of the relay K1, the coil of the relay K1 is electrically connected to the amplifier indicator light 11, and the amplifier indicator light 11 is electrically connected to the negative electrode of the power supply.

[0047] In the initial state, the start button 7-1 is a normally open switch, the stop button 7-2 is a normally closed switch, and the control switch inside the amplifier is a normally open switch. After pressing the start button 7-1, the coil of the contactor KM1 is energized, the normally open switch of the contactor KM1 is closed, and the motor 1 rotates. When the angle encoder 9 rotates to a specific angle, the control switch inside the amplifier is energized and closed, so that the amplifier indicator light 11 lights up, and at the same time, the coil of the relay K1 is energized, the normally closed switch of the relay K1 is disconnected, the coil of the contactor KM1 is de-energized, and the motor 1 stops rotating.

[0048] In this embodiment, the internal control switch of the amplifier is a normally open switch of a relay. When the angle encoder 9 rotates to a specific angle, an electrical signal is sent to the coil of the relay, the coil is energized, and the internal control switch of the amplifier is closed. Here, the specific angle of rotation of the angle encoder 9 is preset by the installer.

[0049] In some embodiments, the debugging personnel can manually start and stop the motor 1 by pressing the start button 7 - 1 and the stop button 7 - 2 on the remote control handle 7 to deal with emergencies.

[0050] As an embodiment, the bearing sleeve 5 includes a first body and a second body connected end to end, and there is an installation space for the bearing 9-2 between the first body and the second body, and the bearing sleeve can be sleeved on the bearing 9-2; a bearing magnet 5-2 is installed at the connection between the first body and the second body, and a positioning pin 5-1 is connected to the inner side of the bearing sleeve, and the positioning pin 5-1 extends into the adjustment hole 9-1. The fixing ring 2 includes a hinge 2-1, and a first clamp and a second clamp connected end to end, and there is an installation space for the angle encoder 9 between the first clamp and the second clamp; the head end of the first clamp is connected to the tail end of the second clamp through the hinge 2-1, and the tail end of the first clamp and the head end of the second clamp are provided with a notch 2-2, and the locking bolt 3 passes through the notch 2-2 to connect the first clamp and the second clamp. The circumferential side of the first clamp is connected to a limiting ring, and the first clamp and the limiting ring are an integrated structure, and the limiting ring is sleeved on the motor 1.

[0051] In this embodiment, the bearing sleeve 5 is designed as a two-half structure consisting of two semi-annular structures, which is convenient for installation and fixation of the system. The structural design of the fixing ring 2 facilitates installation and disassembly of the system.

[0052] The installation method of the diesel engine angle encoder automatic adjustment system described in this embodiment is as follows:

[0053] First, install the fixing ring 2 on the angle encoder 9, and lock the fixing ring 2 with the locking bolt 3 and the nut 4. Install the bearing sleeve 5 on the bearing 9-2, insert the positioning pin 5-1 into the adjustment hole 9-1, and connect the first body and the second body through the bearing magnet 5-2. Install the toothed synchronous belt 6 on the motor 1 and the bearing sleeve 5, and fix the toothed synchronous belt 6 with the connecting plate 6-1 and the bolt 6-2.

[0054] Based on the above diesel engine angle encoder automatic adjustment system, this embodiment also provides a diesel engine angle encoder automatic adjustment method, comprising the following steps:

[0055] S1. Install the fixing ring 2 on the angle encoder 9, install the motor 1 on the fixing ring 2, and make the motor 1 transmission connected with the bearing 9-2 of the angle encoder 9.

[0056] S2. Press the start button 7-1 to start the motor 1. The motor 1 rotates to drive the bearing 9-2 of the angle encoder 9 to rotate. When the motor 1 rotates to a corresponding angle, the start-stop control circuit controls the motor 1 to stop automatically.

[0057] Specifically, in the initial state, the start button 7-1 is a normally open switch, the stop button 7-2 is a normally closed switch, and the internal control switch of the amplifier is a normally open switch. After pressing the start button 7-1, the coil of the contactor KM1 is energized, the normally open switch of the contactor KM1 is closed, and the motor 1 rotates. When the angle encoder 9 rotates to a specific angle, the internal control switch of the amplifier is energized and closed, so that the amplifier indicator light 11 lights up, and at the same time, the coil of the relay K1 is energized, the normally closed switch of the relay K1 is disconnected, the coil of the contactor KM1 is de-energized, and the motor 1 stops rotating.

[0058] Here, the amplifier indicator light 11 can serve as a basis for operators to determine whether the installation is complete.

[0059] In summary, the technical solution described in this embodiment, through the cooperation of components such as the fixing ring 2, the bearing gear sleeve 5, the toothed synchronous belt 6 and the motor 1, can provide good support for the transmission of the motor 1 while realizing the rapid installation of the angle encoder 9, and is combined with the start-stop control circuit to realize rapid and accurate debugging of the installation of the angle encoder 9.

[0060] Although the above describes the specific implementation mode of the present invention in conjunction with the accompanying drawings, it is not intended to limit the scope of protection of the present invention. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art on the basis of the technical solution of the present invention without creative work are still within the scope of protection of the present invention.

Claims

1. A diesel engine angle encoder automatic adjustment system, characterized in that: It includes a motor, a start-stop control circuit and a fixing ring sleeved on the circumference of the angle encoder; The motor is arranged on the circumferential side of the fixing ring, and the motor is transmission-connected to the bearing of the angle encoder; The start-stop control circuit is electrically connected to the motor so as to control the motor to start and automatically stop after the angle encoder rotates to a specific angle.

2. The diesel engine angle encoder automatic adjustment system according to claim 1, characterized in that: It also includes a toothed synchronous belt and a bearing gear sleeve, wherein the bearing gear sleeve is sleeved on the bearing; One end of the toothed synchronous belt is meshed with the motor, and the other end of the toothed synchronous belt is meshed with the bearing gear sleeve.

3. The diesel engine angle encoder automatic adjustment system as claimed in claim 2, characterized in that: The bearing sleeve comprises a first main body and a second main body connected end to end, and a bearing magnet is arranged at the connection between the first main body and the second main body.

4. The diesel engine angle encoder automatic adjustment system as claimed in claim 2, characterized in that: A positioning pin is arranged on the inner side of the bearing gear sleeve.

5. The diesel engine angle encoder automatic adjustment system according to claim 1, characterized in that: The start-stop control circuit includes a power supply, a relay, a contactor, an internal control switch of the amplifier, a start button, a stop button and an amplifier indicator light; The power supply is electrically connected to the contactor, and the contactor is electrically connected to the motor; the start button is electrically connected to the stop button, and the stop button is electrically connected to the relay, and the relay is electrically connected to the contactor; the amplifier internal control switch is electrically connected to the relay, and the relay is electrically connected to the amplifier indicator light.

6. The diesel engine angle encoder automatic adjustment system as claimed in claim 5, characterized in that: It also includes a remote control handle, and the start button and the stop button are arranged on the remote control handle.

7. The diesel engine angle encoder automatic adjustment system as claimed in claim 5, characterized in that: The initial state of the start button is open, and the initial state of the stop button is closed.

8. The diesel engine angle encoder automatic adjustment system according to claim 1, characterized in that: The fixing ring comprises a hinge, a locking bolt, and a first clamp and a second clamp connected end to end; The head end of the first clamp is connected to the tail end of the second clamp via the hinge, and the tail end of the first clamp is connected to the head end of the second clamp via the locking bolt.

9. The diesel engine angle encoder automatic adjustment system as claimed in claim 8, characterized in that: A limiting ring is provided on the circumferential side of the first clamp, and the limiting ring is sleeved on the motor.

10. A diesel engine angle encoder automatic adjustment method, based on the diesel engine angle encoder automatic adjustment system according to any one of claims 1 to 9, characterized in that: include: Install the fixing ring on the angle encoder, install the motor on the fixing ring, and make the motor and the bearing of the angle encoder transmission connected; The motor is started by the starting control circuit. The rotation of the motor drives the bearing of the angle encoder to rotate. When it rotates to a specific angle, the start-stop control circuit controls the motor to stop automatically.