Electric speed regulation device of diesel engine

Abstract

The utility model belongs to the technical field of ferry power generation, and particularly relates to a diesel engine electric speed regulation device which comprises a mounting plate, a diesel prime mover is fixedly arranged at the top of the mounting plate, an accelerator push-pull rod is arranged on the diesel prime mover, a connecting lug is fixedly arranged on one side of the accelerator push-pull rod, and a locking bolt is arranged on the connecting lug. By arranging the servo motor, the threaded rod, the connecting sleeve and the pulling plate, when the rotating speed needs to be adjusted, a signal is sent to the central controller through the control box, the central controller enables the servo motor to rotate, and the braking block is fixedly arranged at the output end of the push rod motor. The servo motor drives the threaded rod to rotate, then the threaded rod drives the connecting sleeve to move leftwards or rightwards, the purpose of controlling the accelerator to adjust the rotating speed is achieved, traditional speed adjustment is achieved through mechanical tradition instead of traditional electronic speed adjustment, cost is reduced, the situation that a controller is electrically adjusted through electromagnetic signals can be avoided, and the safety of equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ferry power generation, in particular to a diesel engine electric speed regulating device. Background Art

[0002] The function of a diesel engine governor is to automatically adjust the cyclic fuel supply of a fuel injection pump according to the load of the diesel engine, stabilize the rotational speed of the diesel engine, maintain the lowest stable rotational speed and limit the highest rotational speed, prevent the diesel engine from stalling and running away. A ferry generator is the most important auxiliary power equipment for the safe navigation of a ferry.

[0003] However, the existing ferry fuel systems are all controlled by an electronic speed control board for speed regulation. A large number of modern communication and automation control systems are used on the ferry, and the electromagnetic signals generated by them seriously interfere with the electronic speed control controller in the electronic speed regulation system of the diesel generator set. Once a failure occurs in the generator electronic speed control board, it will cause the ferry to lose normal power supply interruption, resulting in failures of the main power equipment and systems. If not handled properly, in serious cases, it will directly lead to the ferry getting out of control. Therefore, a diesel engine electric speed regulating device is proposed. Content of the Utility Model

[0004] The purpose of the utility model is to solve the deficiencies existing in the prior art and propose a diesel engine electric speed regulating device.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme: A diesel engine electric speed regulating device, including a mounting plate. A diesel prime mover is fixedly provided at the top of the mounting plate. An accelerator push rod is provided on the diesel prime mover. A connecting ear is fixedly provided on one side of the accelerator push rod. A locking bolt is provided on the connecting ear. A push rod motor is fixedly provided at the top of the mounting plate. A braking block is fixedly provided at the output end of the push rod motor. A plurality of support frames are fixedly provided at the top of the mounting plate. A speed regulating structure is provided at the top of the plurality of support frames.

[0006] As a further description of the above technical scheme:

[0007] The speed regulating structure includes a servo motor fixedly connected to the support frame. A cross plate is provided on one side of the servo motor. A central controller is fixedly provided at the top of the cross plate. A speed reducer is fixedly provided at the output end of the servo motor. A coupling is provided at the output end of the speed reducer. A threaded rod is fixedly provided inside the coupling. A connecting sleeve is sleeved on the threaded rod. A pull plate is fixedly provided at one end of the connecting sleeve.

[0008] As a further description of the above technical scheme:

[0009] Internal threads are provided on the inner wall of the connecting sleeve, and the threads on the inner wall of the threaded rod and the connecting sleeve are adapted to each other.

[0010] As a further description of the above technical solution:

[0011] Two limiting rods are fixedly arranged on one side of the speed reducer, two limiting plates are fixedly arranged on the outer part of the connecting sleeve, and the limiting plates are movably connected with the limiting rods.

[0012] As a further description of the above technical solution:

[0013] The pulling plate is made of stainless steel, and mounting holes are arranged on the pulling plate, and the mounting holes are adapted to the locking bolts.

[0014] As a further description of the above technical solution:

[0015] The tops of multiple support frames are fixedly provided with the same fixing plate, and the bottom of the servo motor is fixedly connected with the top of the fixing plate through bolts.

[0016] The utility model has the following beneficial effects:

[0017] 1. Compared with the prior art, for this diesel engine electric speed regulation device, by setting a servo motor, a cross plate, a central controller, a speed reducer, a threaded rod, a connecting sleeve and a pulling plate, when the speed needs to be adjusted, a signal is sent from the control box to the central controller, the central controller makes the servo motor rotate, the servo motor drives the threaded rod to rotate, and the threaded rod drives the connecting sleeve to move left or right, so as to achieve the purpose of controlling the throttle to adjust the speed. Using mechanical transmission to achieve speed regulation replaces the traditional electronic speed regulation, which not only reduces the cost, but also can avoid the situation of electromagnetic signal electric speed regulation controllers, and improves the safety of the equipment.

[0018] 2. Compared with the prior art, for this diesel engine electric speed regulation device, by setting a push rod motor and a braking block, after the speed regulation is completed, an instruction is sent from the control box to the central controller, the central controller starts the push rod motor, the output end of the push rod motor moves upward and drives the braking block, and the braking block fits with the outer wall of the connecting sleeve, which can lock it and prevent the connecting sleeve from moving, resulting in unstable speed. Description of the Drawings

[0019] Figure 1 It is a first - perspective three - dimensional structure schematic diagram of the diesel engine electric speed regulation device proposed by the utility model;

[0020] Figure 2 It is a second - perspective three - dimensional structure schematic diagram of the diesel engine electric speed regulation device proposed by the utility model;

[0021] Figure 3 It is an enlarged structure schematic diagram of part A in the diesel engine electric speed regulation device proposed by the utility model;

[0022] Figure 4This is an enlarged structural schematic diagram of part B in the diesel engine electric speed control device proposed by the present utility model.

[0023] Legend description:

[0024] 1. Mounting plate; 2. Diesel prime mover; 3. Throttle push rod; 4. Connecting ear; 5. Push rod motor; 6. Braking block; 7. Support frame; 8. Speed control structure; 801. Servo motor; 802. Horizontal plate; 803. Central controller; 804. Reducer; 805. Coupling; 806. Threaded rod; 807. Connecting sleeve; 808. Limiting plate; 809. Limiting rod; 810. Pulling plate; 9. Locking bolt. Specific implementation manners

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0026] Refer to Figures 1 to 4 , the diesel engine electric speed control device provided by the present utility model: includes a mounting plate 1, a diesel prime mover 2 is fixedly provided on the top of the mounting plate 1, a throttle push rod 3 is provided on the diesel prime mover 2, a connecting ear 4 is fixedly provided on one side of the throttle push rod 3, and a locking bolt 9 is provided on the connecting ear 4. The setting of the locking bolt 9 can facilitate the subsequent separation of the throttle push rod 3 from the pulling plate 810. A plurality of support frames 7 are fixedly provided on the top of the mounting plate 1;

[0027] Refer to Figures 1 to 2 , in order to achieve the locking purpose, a push rod motor 5 is fixedly provided on the top of the mounting plate 1, a braking block 6 is fixedly provided at the output end of the push rod motor 5. When the speed adjustment is completed and the servo motor 801 stops rotating and the equipment is at a stable speed, an instruction can be sent to the central controller 803 through the control box. The central controller 803 starts the push rod motor 5, the output end of the push rod motor 5 moves upward and drives the braking block 6, and the braking block 6 fits against the outer wall of the connecting sleeve 807, which can achieve the locking purpose and prevent the connecting sleeve 807 from moving, resulting in unstable speed;

[0028] Refer to Figures 1 to 4, in order to achieve the purpose of controlling the rotational speed, a speed regulation structure 8 is provided at the top of multiple support frames 7. The speed regulation structure 8 includes a servo motor 801 fixedly connected to the support frame 7. A fixed plate is fixedly provided at the top of multiple support frames 7. The bottom of the servo motor 801 is fixedly connected to the top of the fixed plate through bolts. A cross plate 802 is provided on one side of the servo motor 801. A central controller 803 is fixedly provided on the top of the cross plate 802. The output end of the servo motor 801 is fixedly provided with a reducer 804. A coupling 805 is provided at the output end of the reducer 804. A threaded rod 806 is fixedly provided inside the coupling 805. A connecting sleeve 807 is sleeved on the threaded rod 806. The inner wall of the connecting sleeve 807 is provided with threads, and the threads on the threaded rod 806 are adapted to the threads on the inner wall of the connecting sleeve 807. Two limiting rods 809 are fixedly provided on one side of the reducer 804. Two limiting plates 808 are fixedly provided outside the connecting sleeve 807. The limiting plates 808 are movably connected to the limiting rods 809. The cooperation of the limiting rods 809 and the limiting plates 808 can limit the connecting sleeve 807. One end of the connecting sleeve 807 is fixedly provided with a pull plate 810. The pull plate 810 is made of hard material and can reduce the throttle dead zone. The pull plate 810 is made of stainless steel. An installation hole is provided on the pull plate 810, and the installation hole is adapted to the locking bolt 9. When the rotational speed needs to be adjusted, a signal is sent from the control box to the central controller 803. The central controller 803 makes the servo motor 801 rotate. The servo motor 801 drives the threaded rod 806 to rotate, and the threaded rod 806 drives the connecting sleeve 807 to move left or right, achieving the purpose of controlling the throttle to adjust the rotational speed. Using mechanical transmission to achieve speed regulation replaces the traditional electronic speed regulation, which not only reduces costs but also improves safety.

[0029] Working principle: The control box, the central controller 803, the push rod motor 5 and the servo motor 801 are electrically connected. When it is necessary to reduce the rotational speed of the diesel prime mover 2, a signal can be sent from the control box to the central controller 803. The central controller 803 makes the servo motor 801 rotate counterclockwise. The output shaft of the servo motor 801 drives the output shaft of the reducer 804. The output shaft of the reducer 804 drives the threaded rod 806, and the threaded rod 806 drives the connecting sleeve 807 to move in the direction close to the diesel prime mover 2. The connecting sleeve 807 drives the pull plate 810, and the pull plate 810 pushes the throttle push rod 3 to reduce fuel, thereby achieving the purpose of reducing the rotational speed of the prime mover. When it is necessary to increase the rotational speed of the prime mover, just make the servo motor 801 rotate clockwise. If the rotational speed adjustment is completed and the servo motor 801 stops rotating and the equipment is at a stable rotational speed, a command can be sent from the control box to the central controller 803. The central controller 803 starts the push rod motor 5. The output end of the push rod motor 5 moves upward and drives the braking block 6. The braking block 6 fits against the outer wall of the connecting sleeve 807, which can lock it and prevent the connecting sleeve 807 from moving, resulting in unstable rotational speed.

[0030] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A diesel engine electric speed regulating device, comprising a mounting plate (1), characterized in that: A diesel prime mover (2) is fixedly provided on the top of the mounting plate (1), a throttle push-pull rod (3) is provided on the diesel prime mover (2), a connecting ear (4) is fixedly provided on one side of the throttle push-pull rod (3), a locking bolt (9) is provided on the connecting ear (4), a push rod motor (5) is fixedly provided on the top of the mounting plate (1), a brake block (6) is fixedly provided on the output end of the push rod motor (5), a plurality of support frames (7) are fixedly provided on the top of the mounting plate (1), and a speed regulating structure (8) is provided on the top of the plurality of support frames (7).

2. The diesel engine electric speed regulating device according to claim 1, characterized in that: The speed regulating structure (8) comprises a servo motor (801) fixedly connected to a support frame (7); a horizontal plate (802) is provided on one side of the servo motor (801); a central controller (803) is fixedly provided on the top of the horizontal plate (802); a reducer (804) is fixedly provided on the output end of the servo motor (801); a coupling (805) is provided on the output end of the reducer (804); a threaded rod (806) is fixedly provided inside the coupling (805); a connecting sleeve (807) is sleeved on the threaded rod (806); a pull plate (810) is fixedly provided on one end of the connecting sleeve (807).

3. The diesel engine electric speed regulating device according to claim 2, characterized in that: The inner wall of the connecting sleeve (807) is provided with threads, and the threads of the threaded rod (806) and the inner wall of the connecting sleeve (807) are matched.

4. The diesel engine electric speed regulating device according to claim 2, characterized in that: Two limiting rods (809) are fixedly provided on one side of the reducer (804), and two limiting plates (808) are fixedly provided on the outside of the connecting sleeve (807), and the limiting plates (808) and the limiting rods (809) are movably connected.

5. The diesel engine electric speed regulating device according to claim 2, characterized in that: The pull plate (810) is made of stainless steel and is provided with a mounting hole, wherein the mounting hole is matched with the locking bolt (9).

6. The diesel engine electric speed regulating device according to claim 2, characterized in that: The tops of the plurality of support frames (7) are fixedly provided with a same fixing plate, and the bottom of the servo motor (801) is fixedly connected to the top of the fixing plate via bolts.

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