Digital master controller

Abstract

The utility model relates to the technical field of hoisting machinery, and provides a digital master controller which comprises an operating lever, a crankshaft, a base frame, a combined gear, a bevel gear, a sector, a straight gear, a vertical change-over switch mechanism and a horizontal change-over switch mechanism, a gear sector is fixed on the crankshaft; the gear sector is meshed with a straight tooth part in the combined gear; a bevel tooth part in the combined gear is meshed with the bevel gear; the bevel gear is connected with the vertical change-over switch mechanism; the gear sector is meshed with a straight gear, and the straight gear is connected with a horizontal change-over switch mechanism; the vertical change-over switch mechanism and the horizontal change-over switch mechanism respectively comprise a ratchet wheel, a rotating shaft, a contact head, a cam block and an encoder; a ratchet wheel and a plurality of cam blocks are mounted on the rotating shaft; a contact head is arranged on the cam block; and the tail end of the rotating shaft is connected with an encoder. According to the utility model, the encoder is arranged to accurately control the operation state of the driving equipment, so that the controller has higher response speed.

Description

Technical Field

[0001] The utility model relates to the technical field of hoisting machinery, in particular to a digital master controller. Background Art

[0002] The master controller mainly performs speed regulation control on the drive motors of mechanisms such as hoisting, trolley, and crab in a crane. Generally, it can achieve variable speed regulation of 1 to 6 fixed speeds according to the on-site working conditions. The traditional master controller mainly focuses on mechanical output control. By pulling the operating link of the controller, the camshaft is driven to rotate. Different combinations of the camshaft can achieve the contact actions at fixed positions, and the remote control of switch quantities is realized through the connection of remote electrical signals with the contacts.

[0003] However, with the continuous development of the digitization and automation of control systems, the original master controller cannot adapt to the existing technical requirements. For example, it has no standard communication interface and cannot communicate remotely with the automation system; the original speed regulation function can only achieve multi-speed control with fixed speeds and cannot achieve arbitrary adjustment and continuous change of speeds, making it unable to meet the requirements of high precision, fast response speed, and high digitization in modern industrial operations. Summary of the Utility Model

[0004] The utility model mainly solves the technical problems that the master controller of the existing technology cannot communicate remotely and has no stepless speed change. It proposes a digital master controller, which sets an encoder to accurately control the operating state of the drive device, enabling the controller to have a faster response speed and achieve high-precision control.

[0005] The utility model provides a digital master controller, including: a joystick, a crankshaft, a base frame, a combination gear, a bevel gear, a tooth sector, a spur gear, a vertical conversion switch mechanism, and a horizontal conversion switch mechanism;

[0006] The crankshaft and the combination gear fixing plate are respectively fixed on the base frame; the combination gear is fixed on the combination gear fixing plate;

[0007] The joystick is fixedly connected to the crankshaft; a tooth sector is fixed on the crankshaft; the tooth sector meshes with the straight-tooth part of the combination gear; the bevel-tooth part of the combination gear meshes with the bevel gear; the bevel gear is connected to the vertical conversion switch mechanism;

[0008] The tooth sector meshes with the spur gear, and the spur gear is connected to the horizontal conversion switch mechanism;

[0009] The vertical conversion switch mechanism and the horizontal conversion switch mechanism respectively include: a ratchet wheel, a rotating shaft, a contact head, a cam block, and an encoder;

[0010] The ratchet wheel and a plurality of cam blocks are installed on the rotating shaft; the contact head is arranged on the cam block;

[0011] The end of the rotating shaft is connected to an encoder.

[0012] Preferably, a dust cover is provided at the lower part of the joystick, and the dust cover is fixed on the base frame.

[0013] Preferably, the end of the rotating shaft is connected to the encoder through a coupling.

[0014] Preferably, contact group mounting plates are respectively provided at both ends of multiple cam blocks.

[0015] Preferably, a fixing bracket is provided between the encoder and the contact group mounting plate.

[0016] Preferably, the rotating shaft is made of square steel, and multiple circular grooves for installing snap rings are provided on the rotating shaft; the end of the rotating shaft is cylindrical.

[0017] Preferably, a conversion switch fixing plate is provided at the front end of the rotating shaft. The vertical conversion switch mechanism is connected to the bevel gear through the conversion switch fixing plate, and the horizontal conversion switch mechanism is respectively connected to the spur gear through the conversion switch fixing plate.

[0018] A digital master controller provided by the present utility model, when working, the force applied by the operator to push the joystick is converted into a rotational force after passing through the crankshaft, and drives the rotating shaft of the vertical conversion switch mechanism or the horizontal conversion switch mechanism, as well as the ratchet, cam group, coupling and encoder fixed on the rotating shaft through combined gear transmission, so as to realize the random adjustment and continuous change of speed. The encoder transmits different electrical signals during the movement of the rotating shaft according to different settings. The present utility model integrates an encoder to achieve digital improvement, thereby outputting corresponding electrical signals for convenient use. Through the encoder, the operating state of the driving device can be accurately controlled, adapting to the production requirements with higher control precision, realizing high-precision control, and enabling the controller to have a faster response speed. The encoder is fixed at the end of the vertical conversion switch mechanism or the horizontal conversion switch mechanism through a coupling and a fixing bracket. The digital master controller of the present utility model has a standard communication interface, can feedback signals in real time and communicate remotely with other devices, and is easy to integrate. The present utility model can be applied to various hoisting machinery systems in industries such as engineering machinery, metallurgy and mining, port logistics, power and energy, etc. for transmission control. Description of the Drawings

[0019] Figure 1 is a cross-sectional view of the digital master controller provided by the present utility model;

[0020] Figure 2 is Figure 1 a partially enlarged schematic view of

[0021] Reference numerals: 1, joystick; 2, dust cover; 3, crankshaft; 4, base frame; 5, combined gear; 6, combined gear fixing plate; 7, bevel gear; 8, tooth sector; 9, spur gear; 10, conversion switch fixing plate; 11, ratchet; 12, rotating shaft; 13, contact group mounting plate; 14, contact head; 15, cam block; 16, fixed bracket; 17, coupling; 18, encoder. Detailed implementation manners

[0022] To make the technical problems solved by the present utility model, the technical solutions adopted and the achieved technical effects clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. Additionally, it should be noted that for the convenience of description, only the parts related to the present utility model are shown in the accompanying drawings rather than all the content.

[0023] As Figure 1 、 2 shown, a digital master controller provided by an embodiment of the present utility model includes: a joystick 1, a crankshaft 3, a base frame 4, a combined gear 5, a bevel gear 7, a tooth sector 8, a spur gear 9, a vertical conversion switch mechanism and a horizontal conversion switch mechanism.

[0024] The crankshaft 3 and the combined gear fixing plate 6 are respectively fixed on the base frame 4; a dust cover 2 is arranged at the lower part of the joystick 1, and the dust cover 2 is fixed on the base frame 4.

[0025] The combined gear 5 is fixed on the combined gear fixing plate 6; the combined gear 5 has a straight tooth part and a bevel tooth part.

[0026] The joystick 1 is fixedly connected with the crankshaft 3; a tooth sector 8 is fixed on the crankshaft 3; the tooth sector 8 meshes with the straight tooth part of the combined gear 5; the bevel tooth part of the combined gear 5 meshes with the bevel gear 7; the bevel gear 7 is connected with the vertical conversion switch mechanism;

[0027] The tooth sector 8 meshes with the spur gear 9, and the spur gear 9 is connected with the horizontal conversion switch mechanism;

[0028] The vertical conversion switch mechanism and the horizontal conversion switch mechanism respectively include: a ratchet 11, a rotating shaft 12, a contact head 14, a cam block 15 and an encoder 18;

[0029] The ratchet 11 and a plurality of cam blocks 15 are mounted on the rotating shaft 12; the contact head 14 is arranged on the cam block 15; contact group mounting plates 13 are respectively arranged at both ends of the plurality of cam blocks 15.

[0030] The end of the rotating shaft 12 is connected to the encoder 18. Specifically, the end of the rotating shaft 12 is connected to the encoder 18 through a coupling 17. A fixed bracket 16 is provided between the encoder 18 and the contact group mounting plate 13, and the fixed bracket 16 is used to reinforce the encoder 18.

[0031] In the present utility model, the rotating shaft 12 is made of 8 mm square steel. A plurality of circular grooves for installing snap rings are provided on the rotating shaft 12, and the snap rings are used to fix various parts; the ratchet wheel 11 and the cam block 15 are provided with 8 mm square holes in the center, so they can be driven by the rotating shaft 12. The end of the rotating shaft 12 is cylindrical, and the diameter of the cylinder is 6 mm. A conversion switch fixing plate 10 is provided at the front end of the rotating shaft 12. The vertical conversion switch mechanism is connected to the bevel gear 7 through the conversion switch fixing plate 10, and the horizontal conversion switch mechanism is connected to the spur gear 9 through the conversion switch fixing plate 10.

[0032] In this embodiment, the vertical conversion switch mechanism and the horizontal conversion switch mechanism respectively form a whole. There are four cam blocks 15 in each of the vertical conversion switch mechanism and the horizontal conversion switch mechanism, forming a cam group, and four corresponding contact heads 14, forming a contact group. The vertical conversion switch mechanism and the horizontal conversion switch mechanism are placed vertically and horizontally respectively, and an encoder 18 is added to their ends. After adding the encoder 18, the height of the vertical conversion switch mechanism and the horizontal conversion switch mechanism is 130 mm.

[0033] In the working state of the digital master controller of the present utility model, the force applied by the operator to push the joystick 1 is converted into a rotational force after passing through the crankshaft 3. At this time, there are two cases:

[0034] 1. If the vertical conversion switch mechanism is operated, the rotational force drives the straight-tooth part in the combined gear 5 through the toothed sector 8 fixed on the crankshaft 3, and then is transmitted to the bevel gear 7 through the bevel-tooth part in the combined gear 5. Finally, the rotating shaft 12 of the vertical conversion switch mechanism is driven, and the rotating shaft 12 drives the ratchet wheel 11, the cam block 15, the coupling 17 and the encoder 18.

[0035] 2. If the horizontal conversion switch mechanism is operated, the toothed sector 8 fixed on the crankshaft 3 drives the spur gear 9, and then directly drives the rotating shaft 12 and the ratchet wheel 11, the cam group 15, the coupling 17 and the encoder 18 fixed thereon.

[0036] In practical applications, the encoder 18 can transmit different electrical signals during the movement of the rotating shaft 12 according to different settings. As the operator pushes the joystick 1, the encoder 18 converts its real-time position into binary code or Gray code required for communication, and realizes remote communication and completes the stepless speed regulation function through various port forms.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model, rather than to limit it; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: modifications made to the technical solutions described in the foregoing embodiments, or equivalent replacements of some or all of the technical features therein, do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present utility model.

Claims

1. A digital master controller, characterized in that, Including: A joystick (1), a crankshaft (3), a base frame (4), a combined gear (5), a bevel gear (7), a tooth sector (8), a spur gear (9), a vertical changeover switch mechanism, and a horizontal changeover switch mechanism; The crankshaft (3) and the combined gear fixing plate (6) are respectively fixed on the base frame (4); the combined gear (5) is fixed on the combined gear fixing plate (6); The joystick (1) is fixedly connected to the crankshaft (3); the tooth sector (8) is fixed on the crankshaft (3); the tooth sector (8) meshes with the straight-tooth part in the combined gear (5); the bevel-tooth part in the combined gear (5) meshes with the bevel gear (7); the bevel gear (7) is connected to the vertical changeover switch mechanism; The tooth sector (8) meshes with the spur gear (9), and the spur gear (9) is connected to the horizontal changeover switch mechanism; The vertical changeover switch mechanism and the horizontal changeover switch mechanism respectively include: a ratchet wheel (11), a rotating shaft (12), a contact head (14), a cam block (15), and an encoder (18); The ratchet wheel (11) and a plurality of cam blocks (15) are mounted on the rotating shaft (12); the contact head (14) is arranged on the cam block (15); The end of the rotating shaft (12) is connected to the encoder (18).

2. The digital master controller according to claim 1, characterized in that, A dust cover (2) is arranged at the lower part of the joystick (1), and the dust cover (2) is fixed on the base frame (4).

3. The digital master controller according to claim 1, characterized in that The end of the rotating shaft (12) is connected to the encoder (18) through a coupling (17).

4. The digital master controller according to claim 3, characterized in that, Contact group mounting plates (13) are respectively arranged at both ends of the plurality of cam blocks (15).

5. The digital master controller according to claim 4, wherein A fixing bracket (16) is arranged between the encoder (18) and the contact group mounting plate (13).

6. The digital master controller according to claim 1, wherein The rotating shaft (12) is made of square steel, and a plurality of circular grooves for mounting snap rings are arranged on the rotating shaft (12); the end of the rotating shaft (12) is cylindrical.

7. The digital master controller according to claim 6, characterized in that, A changeover switch fixing plate (10) is arranged at the front end of the rotating shaft (12), the vertical changeover switch mechanism is connected to the bevel gear (7) through the changeover switch fixing plate (10), and the horizontal changeover switch mechanism is respectively connected to the spur gear (9) through the changeover switch fixing plate (10).

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