CN214403777U

CN214403777U - Integrated digital speed regulator

Info

Publication number: CN214403777U
Application number: CN202120392296.1U
Authority: CN
Inventors: 王伟; 张晓波; 王鑫; 吕田有; 史曹杨; 戚俊锋; 张建功; 赵昌周; 赵悦
Original assignee: DATONG NORTH TIANLI TURBOCHARGING TECHNOLOGY CO LTD
Current assignee: DATONG NORTH TIANLI TURBOCHARGING TECHNOLOGY CO LTD
Priority date: 2021-02-22
Filing date: 2021-02-22
Publication date: 2021-10-15
Anticipated expiration: 2031-02-22

Abstract

The utility model relates to a diesel engine rotational speed control field, concretely relates to integral type digital speed regulator. Including lower guard shield, last guard shield internally mounted have bearing frame and double spring seat, lower guard shield internally mounted have circuit board case and circuit board, the circuit board is fixed in the inside of circuit board case, the installation is fixed with executor body and single deep groove ball bearing on the bearing frame, be fixed with the jackshaft on the single deep groove ball bearing, prop up the jackshaft, install reset spring, deep groove ball bearing and rocking arm on the double spring seat, the output of double spring seat and executor body links to each other, still be fixed with position sensor on the bearing frame, circuit board and executor body, position sensor electric connection. The utility model relates to an ingenious, rational in infrastructure, can fully satisfy the following control requirement of diesel engine effectively, have very showing popularization and application meaning.

Description

Integrated digital speed regulator

Technical Field

The utility model relates to a diesel engine rotational speed control field, concretely relates to integral type digital speed regulator.

Background

The current marine diesel engine speed control is mainly used by a mechanical hydraulic speed regulator, the mechanical hydraulic speed regulator has simple functions, can only control the engine speed, can not calibrate the external characteristics of the engine working condition according to the actual condition, and the mechanical speed regulator has poor dynamic responsiveness and is difficult to meet the future control requirements of the marine diesel engine.

There is a need to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem in the background art, the utility model provides an integral type digital speed regulator replaces mechanical hydraulic pressure speed regulator, the utility model has the characteristics of control accuracy is high, the response is rapid, the interface is abundant etc to can carry out external characteristics according to the diesel oil operating mode and mark, have obvious advantage than mechanical hydraulic pressure speed regulator on the performance, the utility model discloses a technical scheme as follows:

the utility model provides an integral type digital speed regulator, includes lower guard shield, upper guard shield, and upper guard shield internally mounted has bearing frame and double spring seat, and lower guard shield internally mounted has circuit board case and circuit board, the inside at the circuit board case is fixed to the circuit board, lower guard shield is connected fixedly and as the speed regulator shell with the upper guard shield, the installation is fixed with executor body and single deep groove ball bearing on the bearing frame, the executor body passes through the fixed plate and is fixed on the bearing frame with stud, be fixed with the jackshaft on the single deep groove ball bearing, prop up the jackshaft, install reset spring, deep groove ball bearing and rocking arm on the double spring seat, the output of double spring seat and executor body links to each other, the rocking arm is connected fixedly through the transition axle with deep groove ball bearing, the jackshaft passes through the pin junction with the rocking arm. The middle shaft is provided with a groove, a magnetic steel sleeve is fixed in the groove, magnetic steel is fixed on the magnetic steel sleeve, a position sensor is further fixed on the bearing seat, and the circuit board is electrically connected with the actuator body and the position sensor.

The actuator body consists of an armature shaft, a coil and a shell, wherein the armature shaft penetrates through the center of the coil and is fixed in the shell, the coil is fixed in the shell, a circuit board outputs driving current to the coil, a magnetic field is generated in the actuator body, then the magnetic field generates magnetic force which acts on the armature shaft at the center of the actuator body to enable the actuator shaft to act, and the shell is a closed conductor and reduces the attenuation of an internal magnetic field; the armature shaft and the double spring seats are connected and fixed through nuts, and the armature shaft drives the double spring seats to move.

The position sensor is composed of a circuit board, a signal wire harness and a circuit board cover, the circuit board adopts a programmable Hall sensor, the magnetic steel is fixed on an output shaft of the actuator body through a magnetic steel sleeve, and the circuit board is fixed by the circuit board cover.

The control circuit on the circuit board comprises a position feedback processing circuit, a rotating speed signal processing circuit, a control signal processing circuit, a power supply circuit, a single chip microcomputer interface circuit, a position signal output circuit, a motor driving circuit and a communication circuit, and further comprises a single chip microcomputer, wherein all the circuits are connected to corresponding interfaces of the single chip microcomputer and controlled by the single chip microcomputer.

The circuit board is connected with an external 24V direct current power supply and is powered by the external 24V direct current power supply.

Compared with the prior art, the utility model discloses the beneficial effect who has does:

1. the utility model discloses an electronic circuit carries out digital control diesel engine rotational speed, has characteristics such as control accuracy height, response speed are fast, reliability height to can carry out external characteristics according to the diesel oil operating mode and mark, have obvious advantage than mechanical hydraulic governor in the performance.

2. The utility model discloses be in the same place control circuit and executive component are integrated, improved the integrated level of equipment, simplified the system architecture, the mounting means can realize the mutual replacement to mark machinery hydraulic pressure speed regulator.

3. The utility model discloses have functions such as rotational speed control, position signal output, external characteristic are markd, fault detection and protection, host computer communication, can realize marine diesel's integrated management.

To sum up, the utility model relates to an ingenious, rational in infrastructure, can fully satisfy the future control requirement of diesel engine effectively, have very showing popularization and application meaning.

Drawings

FIG. 1 is a front view of the overall structure of the present invention;

FIG. 2 is a sectional view taken along section F-F of FIG. 1;

FIG. 3 is a schematic structural view of the position sensor of the present invention;

FIG. 4 is a front view of the structure of the actuator body of the present invention;

FIG. 5 is a top view of the actuator body structure of the present invention;

FIG. 6 is a schematic block diagram of the circuit board control circuit of the present invention;

FIG. 7 is a schematic block diagram of the present invention;

in the figure: the device comprises a protective cover 1, a bearing seat 2, a reset spring 3, a stud 4, a fixing plate 5, an actuator body 6, an upper protective cover 7, an intermediate shaft 8, a transition shaft 9, a pin 10, a deep groove ball bearing 11, a rocker arm 12, a double spring seat 13, a single-row deep groove ball bearing 14, a magnetic steel sleeve 15, magnetic steel 16, a position sensor 17, a circuit board box 18, a circuit board 19, a circuit board 20, a signal wire harness 21, a circuit board cover 22, a feedback processing circuit 23, a rotating speed signal processing circuit 24, a control signal processing circuit 25, a power circuit 26, a single-chip microcomputer interface circuit 27, a position signal output 28, a motor driving circuit 29, a communication circuit 30, an armature shaft 31, a coil 32 and a shell 33.

Detailed Description

The technical solutions in the embodiments of the present invention are described below clearly and completely, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 7, the present invention provides an integrated digital governor, which comprises a lower guard 1 and an upper guard 7, wherein a bearing seat 2 and a double spring seat 13 are installed inside the upper guard 7, a circuit board box 18 and a circuit board 19 are installed inside the lower guard 1, the circuit board 19 is fixed inside the circuit board box 18, the lower guard 1 and the upper guard 7 are connected and fixed to form a governor housing, an actuator body 6 and a single-row deep groove ball bearing 14 are installed and fixed on the bearing seat 2, the actuator body 6 is fixed on the bearing seat 2 through a fixing plate 5 and a stud 4, an intermediate shaft 8 is fixed on the single-row deep groove ball bearing 14 to support the intermediate shaft 8, a reset spring 3, a deep groove ball bearing 11 and a rocker arm 12 are installed on the double spring seat 13, the double spring seat 13 is connected with an output end of the actuator body 6, the rocker arm 12 is connected and fixed with the deep groove ball bearing 11 through a transition shaft 9, the intermediate shaft 8 is connected to a rocker arm 12 via a pin 10. The middle shaft 8 is provided with a groove, a magnetic steel sleeve 15 is fixed in the groove, magnetic steel 16 is fixed on the magnetic steel sleeve 15, a position sensor 17 is further fixed on the bearing seat 2, and the circuit board 19 is electrically connected with the actuator body 6 and the position sensor 17.

The actuator body 6 is composed of an armature shaft 31, a coil 32 and a shell 33, the armature shaft 31 penetrates through the center of the coil 32 and is fixed inside the shell 33, the coil 32 is fixed inside the shell 33, a circuit board 19 outputs driving current to the coil 32, a magnetic field is generated inside the actuator body 6, then the magnetic field generates magnetic force which acts on the armature shaft 31 at the center of the actuator body 6 to enable the actuator body to act, and the shell 33 is a closed conductor and reduces attenuation of an internal magnetic field; the armature shaft 31 is fixedly connected with the double spring seats 13 through nuts, and the armature shaft 31 drives the double spring seats 13 to move.

The position sensor 17 is composed of a circuit board 20, a signal wire harness 21 and a circuit board cover 22, the circuit board adopts a programmable Hall sensor, the position signal of an actuator output shaft (intermediate shaft) is output by detecting the magnetic field change of annular magnetic steel 16 fixed on the intermediate shaft 8, the signal wire harness 21 is responsible for outputting the signal to an actuator circuit board 19, the annular magnetic steel 16 is fixed on the actuator output shaft through a magnetic steel sleeve 15, and the circuit board 20 is fixed by the circuit board cover 22.

The control circuit on the circuit board 19 comprises a position feedback processing circuit 23, a rotating speed signal processing circuit 24, a control signal processing circuit 25, a power supply circuit 26, a single chip microcomputer interface circuit 27, a position signal output 28, a motor driving circuit 29, a communication circuit 30 and a single chip microcomputer, and all the circuits are connected to corresponding interfaces of the single chip microcomputer and controlled by the single chip microcomputer.

The circuit board 19 is connected to and powered by an external 24V dc power supply.

The utility model relates to a principle does:

the utility model is powered by an external 24VDC power supply, a circuit board 19 receives a position control input signal given by industrial control equipment and a position signal output by a position sensor 17 to be operated by a singlechip, a driving signal of an actuator body 6 is output, the actuator body 6 is driven to drive a double spring seat 13 to do linear reciprocating motion through an armature shaft 31 of the actuator body 6 under the reaction force of a reset spring 3, and a rocker arm 12 connected with the double spring seat 13 transmits the reciprocating motion of the double spring seat 13 to the rotary motion of an intermediate shaft 8; the intermediate shaft 8 is connected with the rocker arm 12 through a pin 10, the rocker arm 12 is connected with the double spring seat 13 through the deep groove ball bearing 11 and the transition shaft 9 to realize motion transmission, the single-row deep groove ball bearing 14 fixes the axial and radial movement of the intermediate shaft 8, supports the intermediate shaft 8, enables the intermediate shaft 8 to only do rotation motion, and ensures the rotation precision of the intermediate shaft; the position sensor 17 outputs actuator position feedback signals by detecting the change of the magnetic field of the magnetic steel 16 mounted on the intermediate shaft 8.

The utility model discloses control circuit on the circuit board comprises position feedback processing circuit 23, rotational speed signal processing circuit 24, control signal processing circuit 25, power supply circuit 26, singlechip interface circuit 27, position signal output 28, motor drive circuit 29 and communication circuit 30. Wherein, the position feedback processing circuit 23 receives the feedback signal output by the position sensor 17, and the signal is processed by the circuit and input into the corresponding interface of the singlechip; the rotating speed signal processing circuit 24 collects the real-time rotating speed signal of the diesel engine input by the rotating speed sensor and sends the signal to the singlechip for data processing; the control signal processing circuit 25 receives externally input control signals such as shutdown, speed increase, speed decrease, rotating speed setting, mode switching and the like, processes the control signals and sends the processed control signals to the singlechip interface circuit; the power circuit 26 converts the 24V external power supply into 5V and 18V power supplies required by the interior of the circuit board; the singlechip interface circuit 27 is the core of the control circuit, calculates the rotating speed signal, the position signal and the set rotating speed and calibration data of the diesel oil, outputs a control signal to the motor driving circuit, and has the functions of fault detection and protection; the position signal output circuit 28 mainly outputs a position signal of 0.5-4.5V or 4-20 mA to the external monitoring equipment; the executive body driving circuit 29 receives the control signal input by the singlechip, and outputs the driving signal of the executive body 6 after the control signal is processed by the circuit, so that the executive body 6 operates according to a corresponding program; the communication circuit 30 can realize the communication function between the actuator and the upper computer software or the handheld debugging equipment, and the upper computer software or the handheld debugging equipment can exchange data with the singlechip through the communication circuit, set the operating parameters of the speed governor and inquire the operating turntable and the fault information of the speed governor.

The above description has been made in detail only for the preferred embodiment of the present invention, but the present invention is not limited to the above embodiment, and various changes can be made without departing from the spirit of the present invention within the knowledge scope of those skilled in the art, and all such changes are intended to be encompassed by the present invention.

Claims

1. An integral type digital speed regulator which characterized in that: the device comprises a lower shield (1) and an upper shield (7), wherein a bearing seat (2) and a double-spring seat (13) are arranged in the upper shield (7), a circuit board box (18) and a circuit board (19) are arranged in the lower shield (1), the circuit board (19) is fixed in the circuit board box (18), the lower shield (1) and the upper shield (7) are fixedly connected and serve as a speed regulator shell, an actuator body (6) and a single-row deep groove ball bearing (14) are fixedly arranged on the bearing seat (2), the actuator body (6) is fixed on the bearing seat (2) through a fixing plate (5) and a stud (4), an intermediate shaft (8) is fixed on the single-row deep groove ball bearing (14) and supports the intermediate shaft (8), a reset spring (3), a deep groove ball bearing (11) and a rocker arm (12) are arranged on the double-spring seat (13), and the double-spring seat (13) is connected with the output end of the actuator body (6), rocking arm (12) are connected fixedly through transition axle (9) with deep groove ball bearing (11), jackshaft (8) are connected through round pin (10) with rocking arm (12), set up slottedly on jackshaft (8), the inslot is fixed with magnetic steel sleeve (15), is fixed with magnet steel (16) on magnetic steel sleeve (15), still be fixed with position sensor (17) on bearing frame (2), circuit board (19) and executor body (6), position sensor (17) electric connection.

2. An integral digital governor according to claim 1, wherein: the actuator body (6) is composed of an armature shaft (31), a coil (32) and a shell (33), the armature shaft (31) penetrates through the center of the coil (32) and is fixed inside the shell (33), the coil (32) is fixed inside the shell (33), a circuit board (19) outputs driving current to the coil (32), a magnetic field is generated inside the actuator body (6), then the magnetic field generates magnetic force which acts on the armature shaft (31) at the center of the actuator body (6) to enable the actuator body to act, the shell (33) is a closed conductor and reduces attenuation of the internal magnetic field; the armature shaft (31) is fixedly connected with the double spring seats (13) through nuts, and the armature shaft (31) drives the double spring seats (13) to move.

3. An integral digital governor according to claim 1, wherein: the position sensor (17) is composed of a circuit board (20), a signal wire harness (21) and a circuit board cover (22), the circuit board (20) adopts a programmable Hall sensor, magnetic steel (16) is fixed on an output shaft of the actuator body (6) through a magnetic steel sleeve (15), and the circuit board (20) is fixed by the circuit board cover (22).

4. An integral digital governor according to claim 1, wherein: the control circuit on the circuit board (19) comprises a position feedback processing circuit (23), a rotating speed signal processing circuit (24), a control signal processing circuit (25), a power supply circuit (26), a single chip microcomputer interface circuit (27), a position signal output (28), a motor driving circuit (29) and a communication circuit (30), and further comprises a single chip microcomputer, wherein all the circuits are connected to corresponding interfaces of the single chip microcomputer and controlled by the single chip microcomputer.

5. An integral digital governor according to claim 1, wherein: the circuit board (19) is connected with an external 24V direct current power supply and is powered by the external 24V direct current power supply.