High-reliability master controller for ship

Abstract

The utility model relates to a highly reliable marine master controller, which comprises a support, a housing, an operating shaft and a transmission assembly, a sealing cavity is formed between the support and the housing, the transmission assembly is arranged in the sealing cavity, the transmission assembly comprises a mechanism frame, a main shaft, a positioning assembly, a reset assembly, a plurality of microswitches and a cam, and the cam acts along with the main shaft and triggers the microswitches. The reset assembly comprises two reset pieces, a reset torsion spring and a limiting rod, the two ends of the reset torsion spring are connected to the two reset pieces respectively, and the two reset pieces are provided with two limiting grooves matched with the limiting rod respectively. The two limiting grooves of the two reset pieces abut against the two sides of the limiting rod respectively, and limiting fit between the two reset pieces and the limiting rod is formed. The utility model has the advantages of simple structure, stable and reliable performance, convenience in assembly, long service life and high reliability.

Description

Technical Field

[0001] This utility model relates to a master controller, specifically a highly reliable marine master controller. Background Technology

[0002] A master controller (also known as a master switch) is mainly used in electrical drive devices to open and close contacts in a specific sequence to issue commands or interlock and switch other control circuits. It is suitable for frequent circuit switching and is often used in conjunction with magnetic starters to remotely control the starting, braking, speed regulation, and reversing of wound-rotor asynchronous motors. It is widely used in the control systems of drive motors in various types of lifting machinery. A master controller includes a frame, an operating mechanism mounted on the frame, and a contact system housed within the frame. Existing master controllers have microswitches and potentiometers exposed outside the frame, resulting in poor protection and failing to meet the requirements for use on ships. Furthermore, this type of master controller suffers from drawbacks such as complex structure, unclear position sensitivity, unreliable performance, inconvenient assembly, and short service life. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a highly reliable marine master controller that is simple in structure, stable and reliable in performance, easy to assemble, and has a long service life.

[0004] To achieve the above objectives, this utility model employs a highly reliable marine master controller, comprising a support, a housing mounted on the support, an operating shaft rotatably mounted on the support, and a transmission assembly. A sealed cavity is formed between the support and the housing, and the transmission assembly is disposed within the sealed cavity. The transmission assembly includes a mechanism frame disposed within the housing, a main shaft rotatably mounted on the mechanism frame and linked with the operating shaft, a positioning assembly mounted on the mechanism frame and cooperating with the main shaft, a reset assembly disposed within the support and cooperating with the main shaft, multiple microswitches mounted on the mechanism frame, and a linkage mechanism. A cam mounted on the spindle moves with the spindle and triggers a micro switch, thus enabling the micro switch to be turned on or off. The reset assembly includes two reset components that are linked to the spindle, a reset torsion spring mounted on the spindle, and a limiting rod mounted on a support and cooperating with the two reset components. The two ends of the reset torsion spring are respectively connected to the two reset components. The two reset components are each provided with two limiting grooves that cooperate with the limiting rod. The two limiting grooves of the two reset components abut against the two sides of the limiting rod, thus forming a limiting cooperation between the two reset components and the limiting rod.

[0005] The advantages of the above structure are: placing the microswitch and transmission components within the sealed cavity prevents them from being exposed outside the support, resulting in better protection and meeting the requirements for shipboard use. The reset component uses a torsion spring reset method, which can generate a large reset force, and the torsion spring has a long mechanical life, thus ensuring a clear gear shift feel. Therefore, this master controller has the advantages of simple structure, stable and reliable performance, convenient assembly, long service life, and high reliability.

[0006] Specifically, the main shaft is linked with a driving component that cooperates with two reset components. Each end of the driving component has two actuating levers, and each of the two reset components has two arc-shaped actuating grooves that cooperate with the actuating levers. The two actuating levers move in tandem with the driving component and reciprocate within the arc-shaped actuating grooves, achieving linkage between the two reset components and the driving component. The driving component drives the two reset components through the two actuating levers, thus ensuring more reliable transmission between the driving component and the two reset components.

[0007] Specifically, a potentiometer is linked to one end of the spindle, and a cover is provided on the mechanism frame to cover the positioner. The cover on the mechanism frame provides better protection for the potentiometer, thereby improving the operational reliability of the master controller.

[0008] Specifically, the positioning assembly includes two positioning cams linked to the main shaft, two positioning members mounted on the mechanism frame on either side of the two positioning cams, and positioning wheels rotatably mounted on the two positioning members. Each positioning cam has a positioning groove that mates with the positioning wheel. One end of each positioning member is rotatably mounted on a positioning shaft of the mechanism frame, and the other end of each positioning member has an arc-shaped positioning groove. A limiting shaft inserted into the arc-shaped positioning groove is mounted on the mechanism frame, and a tension spring is provided between the other ends of the two positioning members. The positioning assembly provides positioning, ensuring reliable operation of the main shaft and thus improving the reliability of the master controller.

[0009] Specifically, the housing is provided with a waterproof connector that communicates with the sealed cavity. The waterproof connector on the housing improves the waterproof performance of the master controller. Attached Figure Description

[0010] Figure 1 This is a perspective view of an embodiment of the present utility model.

[0011] Figure 2 This is a cross-sectional view of an embodiment of the present utility model.

[0012] Figure 3 This is an exploded view of an embodiment of the present utility model. Detailed Implementation

[0013] like Figures 1-3 As shown, this utility model embodiment is a highly reliable marine master controller, including a support 10, a housing 11 mounted on the support 10, an operating shaft 12 rotatably mounted on the support 10, and a transmission assembly 20. A sealed cavity 100 is formed between the support 10 and the housing 11. The transmission assembly 20 is disposed within the sealed cavity 100. The transmission assembly 20 includes a mechanism frame 21 disposed within the housing 11, a main shaft 22 rotatably mounted on the mechanism frame 21 and linked with the operating shaft 12, a positioning assembly 23 disposed on the mechanism frame 21 and cooperating with the main shaft 22, a reset assembly 30 disposed within the support 10 and cooperating with the main shaft 22, a plurality of microswitches 24 disposed on the mechanism frame 21, and a linkage mechanism. A cam 25 is mounted on the main shaft 22. The cam 25 moves with the main shaft 22 and triggers the micro switch 24, thereby turning the micro switch 24 on or off. The reset assembly 30 includes two reset members 31 that are linked and cooperate with the main shaft 22, a reset torsion spring 32 mounted on the main shaft 22, and a limiting rod 33 mounted on the support 10 and cooperating with the two reset members 31. The two ends of the reset torsion spring 32 are respectively connected to the two reset members 31. The two reset members 31 are respectively provided with two limiting grooves 311 that cooperate with the limiting rod 33. The two limiting grooves 311 of the two reset members 31 abut against the two sides of the limiting rod 33, thereby forming a limiting cooperation between the two reset members 31 and the limiting rod 33. The main shaft 22 is linked with a driving component 34 that cooperates with two reset components 31. Each end of the driving component 34 has two actuating levers 35. Each of the two reset components 31 has two arc-shaped actuating grooves 312 that cooperate with the actuating levers 35. The two actuating levers 35 move with the driving component 34 and reciprocate within the arc-shaped actuating grooves 312, achieving linkage between the two reset components 31 and the driving component 34. The driving component drives the two reset components through the two actuating levers, thus ensuring more reliable transmission between the driving component and the two reset components. A potentiometer 26 is linked to one end of the main shaft 22, and a cover 13 covering the positioner 26 is provided on the mechanism frame 10. The cover on the mechanism frame provides better protection for the potentiometer, thereby improving the operational reliability of the master controller.

[0014] like Figure 2 and 3As shown, the positioning assembly 23 includes two positioning cams 231 linked to the main shaft 22, two positioning elements 232 corresponding to the two positioning cams 231 and mounted on the mechanism frame 10, and positioning wheels 233 rotatably mounted on the two positioning elements 232. The positioning cams 231 are provided with positioning grooves 2311 that cooperate with the positioning wheels 233. One end of each of the two positioning elements 232 is rotatably mounted on the positioning shaft 101 of the mechanism frame 10, and the other end of each of the two positioning elements 232 is provided with an arc-shaped positioning groove 2321. A limiting shaft 102 is provided on the mechanism frame 10, which passes through the arc-shaped positioning groove 2321. A tension spring 234 is provided between the other ends of the two positioning elements 232. The positioning assembly can perform a positioning function, thereby ensuring the reliable operation of the main shaft and improving the working reliability of the master controller. The cover 11 is provided with a waterproof connector 14 communicating with the sealing cavity 100. The waterproof connector on the cover improves the waterproof performance of the master controller.

[0015] By placing the microswitches and transmission components within a sealed cavity, their exposure to the support is prevented, resulting in better protection and meeting the requirements for marine applications. The reset assembly utilizes a torsion spring reset mechanism, generating a large reset force. The torsion spring's long mechanical life ensures a clear and tactile feel for each gear position. Therefore, this master controller boasts advantages such as simple structure, stable and reliable performance, convenient assembly, long service life, and high reliability.

Claims

1. A highly reliable marine master controller, characterized in that: The device includes a support, a housing mounted on the support, an operating shaft rotatably mounted on the support, and a transmission assembly. A sealed cavity is formed between the support and the housing. The transmission assembly is located within the sealed cavity. The transmission assembly includes a frame mounted within the housing, a main shaft rotatably mounted on the frame and linked with the operating shaft, a positioning assembly mounted on the frame and linked with the main shaft, a reset assembly mounted within the support and linked with the main shaft, multiple microswitches mounted on the frame, and a cam linked with the main shaft. The cam moves with the main shaft and triggers the microswitches, thus enabling the microswitches to be turned on or off. The reset assembly includes two reset components linked with the main shaft, a reset torsion spring mounted on the main shaft, and a limiting rod mounted on the support and linked with the two reset components. The two ends of the reset torsion spring are respectively connected to the two reset components. Each of the two reset components has two limiting grooves that mate with the limiting rod. The two limiting grooves of the two reset components abut against both sides of the limiting rod, forming a limiting fit between the two reset components and the limiting rod.

2. The high-reliability marine master controller according to claim 1, characterized in that: The main shaft is equipped with a driving component that cooperates with two reset components. Each end of the driving component has two actuating rods. Each of the two reset components has two arc-shaped actuating grooves that cooperate with the two actuating rods. The two actuating rods move with the driving component and reciprocate within the two arc-shaped actuating grooves, thereby achieving linkage between the two reset components and the driving component.

3. The high-reliability marine master controller according to claim 1 or 2, characterized in that: A potentiometer is linked to one end of the main shaft, and a cover is provided on the mechanism frame to cover the positioner.

4. The high-reliability marine master controller according to claim 1 or 2, characterized in that: The positioning assembly includes two positioning cams linked on the main shaft, two positioning components on the mechanism frame corresponding to the two positioning cams, and positioning wheels rotatably mounted on the two positioning components. The positioning cams are provided with positioning grooves that cooperate with the positioning wheels. One end of each of the two positioning components is rotatably mounted on the positioning shaft of the mechanism frame, and the other end of each of the two positioning components is provided with an arc-shaped positioning groove. The mechanism frame is provided with a limiting shaft that passes through the arc-shaped positioning groove, and a tension spring is provided between the other ends of the two positioning components.

5. The high-reliability marine master controller according to claim 1 or 2, characterized in that: The cover is provided with a waterproof connector that communicates with the sealed cavity.

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