Novel master controller

Abstract

The utility model relates to the technical field of master controllers, and provides a novel master controller, which comprises an operating lever, a crankshaft, a base frame and a group of change-over switch units, the operating rod is fixedly connected with the crankshaft; the operating rod penetrates through the base frame and the crankshaft; a fixed bottom plate is arranged at the bottom end of the base frame; the change-over switch unit comprises a cam shaft, a cam frame, a fixed angle plate, a crankshaft fixing seat and a plurality of contacts; the cam shaft is fixed on the base frame; the crankshaft fixing seat is fixedly connected with the crankshaft, and the camshaft is sleeved with the crankshaft fixing seat; the cam frame is fixed on the crankshaft fixing seat; the cam frame is positioned above the fixed angle plate; one end of the fixed angle plate is fixed on the base frame, and the other end is fixed on the cam shaft; and a plurality of contacts are arranged on the fixed angle plate. According to the utility model, the cam frame is rotated for transmission, the torque loss is small, the transmission efficiency of the master controller is improved, and the operating force is retained to the maximum extent.

Description

TECHNICAL FIELD

[0001] The utility model relates to main order controller technical field especially relates to a novel main order controller. BACKGROUND

[0002] The main order controller mainly controls the speed of the driving motor of the crane, and the controller mainly drives the microswitch to move by the rotation of the cam, converts the mechanical operation into an electric signal for remote transmission, and realizes the gear control of the driving device.

[0003] The traditional main order controller converts the force of the push rod into rotation through the crankshaft, fixes the gear fan on the crankshaft, drives the camshaft to rotate through the gear transmission, and realizes the driving requirements of the controller by using different combinations of the camshaft.

[0004] However, the main order controller is limited by the mechanical structure and the processing technology, and its shortcomings are relatively obvious: the torque loss is large in the gear transmission process, the operation force is large, and a plurality of gears have high cost and complex processing technology; the impact force is large when the stop device on the gear controller is triggered, and the tooth breakage phenomenon is prone to occur; the processing technology of the switch and the cam group is complex and inconvenient to assemble; the whole main order controller has too many metal components and is made of iron, and is heavy. INVENTION CONTENTS

[0005] The utility model mainly solves the technical problems of the traditional main order controller, such as large torque loss in the gear transmission process, large operation force, large impact force, complex process and heavy weight, and provides a novel main order controller, which transmits power by rotating the cam frame, has small torque loss, improves the transmission efficiency of the main order controller, and maximally retains the operating force.

[0006] The utility model provides a novel main order controller, which comprises a control rod, a crankshaft, a base frame and a group of switch units.

[0007] The control rod is fixedly connected with the crankshaft, and the control rod passes through the base frame and the crankshaft; the base frame is provided with a fixed bottom plate at the bottom end;

[0008] The switch unit comprises a camshaft, a cam frame, a fixed angle plate, a crankshaft fixing seat and a plurality of contacts.

[0009] The camshaft is fixed on the base frame;

[0010] The crankshaft fixing seat is fixedly connected with the crankshaft, the crankshaft fixing seat is sleeved on the camshaft, the cam frame is fixed on the crankshaft fixing seat, and the cam frame is located above the fixed angle plate.

[0011] One end of the fixed angle plate is fixed on the base frame, and the other end is fixed on the camshaft; a plurality of contacts are arranged on the fixed angle plate.

[0012] Preferably, the lower part of the operating rod is sleeved with a dust cover, and the dust cover is fixed on the base frame.

[0013] Preferably, the center of the fixed bottom plate is provided with a zero position fixing seat, and the operating rod is plug-in arranged in the zero position fixing seat.

[0014] Preferably, the crankshaft fixing seat, the cam frame, the contact and the zero position fixing seat are respectively made of plastic products.

[0015] Preferably, a center hole is formed in the base frame, and a limiting structure is arranged on the center hole of the base frame.

[0016] The limiting structure comprises four arc-shaped protrusions integrally connected, and the four arc-shaped protrusions are distributed in a rectangular shape.

[0017] Preferably, the angle of the arc-shaped protrusion is 51°, 63° or 75°.

[0018] Compared with the prior art, the novel master controller has the following advantages:

[0019] 1. The multi-stage gear transmission of the traditional master controller is reduced, the cam frame is directly rotated for transmission, the torque loss is small, the transmission efficiency of the master controller is improved, the operating force is maximized, the operator is more labor-saving when using, and the comfort is higher.

[0020] 2. The gear limiter of the traditional master controller is reduced, and the limiting structure is directly arranged on the base frame. The operating rod moves in the limiting structure, and stops at the arc-shaped protrusion when moving forward and backward. The base frame of the utility model is made of arc-shaped protrusions with corresponding angles for limiting, without the need for additionally arranging the gear limiter, so that the phenomenon of damage to internal components by large impact force is prevented.

[0021] 3. The novel master controller simplifies the overall structure, greatly reduces the number of parts, reduces the processing procedures, and is more convenient and fast to assemble.

[0022] 4. The crankshaft fixing seat, the cam frame, the contact and the zero position fixing seat are respectively made of plastic products, which reduces the manufacturing cost and also reduces the weight.

[0023] 5. The utility model can be applied to various hoisting machinery systems in the engineering machinery, metallurgy and mining, port logistics, electric power and energy industries, and can drive and control each mechanism in the system. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1It is the structure schematic view of the novel master controller provided by the utility model;

[0025] Figure 2 It is the sectional view of the novel master controller provided by the utility model;

[0026] Figure 3 It is Figure 2 The partial enlarged schematic view of the novel master controller provided by the utility model;

[0027] Figure 4 It is the structure schematic view of the base frame provided by the utility model;

[0028] Figure 5 It is the structure schematic view of the crankshaft and the crankshaft fixing seat provided by the utility model.

[0029] The figure mark: 1, operating rod, 2, dust cover, 3, crankshaft, 4, base frame, 5, zero fixed seat, 6, fixed bottom plate, 7, camshaft, 8, cam frame, 9, fixed angle plate, 10, crankshaft fixing seat, 11, contact, 12, limiting structure. Specific implementation

[0030] In order to make the technical problem solved by the utility model, the technical scheme adopted and the technical effect reached more clear, the utility model is further explained in detail below by combining with the drawings and examples.It can be understood that the specific examples described here are only used to explain the utility model, not limit the utility model.In addition, it needs to be explained that, for the convenience of description, only the part related to the utility model is shown in the drawings, not all contents.

[0031] As Figures 1-3 The utility model embodiment provides a novel master controller, including: operating rod 1, crankshaft 3, base frame 4 and a group of change-over switch unit.

[0032] Operating rod 1 is fixedly connected with crankshaft 3;Operating rod 1 can drive crankshaft 3 to move.The operating rod 1 passes through base frame 4 and crankshaft 3.

[0033] The bottom end of base frame 4 is provided with fixed bottom plate 6.The center of fixed bottom plate 6 is provided with zero fixed seat 5, and operating rod 1 is plug-in arranged in zero fixed seat 5.Operating rod 1 can be locked in zero fixed seat 5;Operating rod 1 is unlocked to operate when operating rod 1 is pulled out of zero fixed seat 5.

[0034] The lower part of operating rod 1 is provided with dust cover 2, and dust cover 2 is fixed on base frame 4. Figure 4As shown, a central hole is formed on the base frame 4, and a limiting structure 12 is provided on the central hole of the base frame 4. The limiting structure 12 includes four integrally connected arc-shaped protrusions, which are distributed in a rectangular pattern. The operating lever 1 is placed in the limiting structure 12 and moves within it, stopping at the arc-shaped protrusions when it moves forward or backward. Therefore, the base frame 4 of this invention is made with arc-shaped protrusions at corresponding angles for limiting movement. The angle of the arc-shaped protrusions can be selected as 51°, 63°, or 75°. This invention eliminates the need for a separate gear limiter, preventing damage to internal components from large impact forces.

[0035] The changeover switch unit includes: a camshaft 7, a cam holder 8, a fixed angle plate 9, a crankshaft mounting base 10, and multiple contacts 11. The camshaft 7 is fixed on the base frame 4.

[0036] like Figure 5 As shown, the crankshaft mounting base 10 is fixedly connected to the crankshaft 3, and the crankshaft mounting base 10 is movably sleeved on the camshaft 7; the cam support 8 is fixed on the crankshaft mounting base 10, and the top of the cam support 8 is also movably sleeved on the camshaft 7; the cam support 8 is located above the fixed angle plate 9.

[0037] One end of the fixed angle plate 9 is fixed to the base frame 4 (which can be fixed to the base frame 4 via a connecting column), and the other end is fixed to the camshaft 7; multiple contact points 11 are provided on the fixed angle plate 9.

[0038] When this utility model is in operation, the camshaft 7 and the fixed angle plate 9 remain stationary; the crankshaft 3 can drive the crankshaft fixed seat 10 and the cam carrier 8 to rotate around the camshaft 7.

[0039] This utility model has a set of changeover switches installed on one side of the base frame 4. The overall height from the base frame 4 to the top of the control lever 1 is approximately 290mm, and the height from the control lever 1 to the bottom of the base frame 4 is approximately 235mm. The width after installing the changeover switches is approximately 165mm. The crankshaft mounting base 10, cam bracket 8, contact 11, and zero-position mounting base 5 are all made of plastic, which reduces manufacturing costs and weight.

[0040] The working process of a novel master controller of this utility model is as follows: In the working state, the operator needs to first lift the control lever 1 so that the control lever 1 is disengaged from the zero position fixed seat 5, and then push the control lever 1. At this time, the pushing force is converted into rotational force through the crankshaft 3. The crankshaft 3 rotates and drives the cam frame 8 to rotate above the fixed angle plate 9 through the crankshaft fixed seat 10, while the fixed angle plate 9 does not move, so that the contact 11 and the cam frame 8 are separated and engaged according to the closing procedure.

[0041] Finally, it should be noted that: the above embodiments are used to illustrate the technical solutions of the present application, but not limited to them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: the modification of the technical solutions recorded in the foregoing embodiments, or the equivalent replacement of part or all of the technical features, does not make the essence of the corresponding technical solution deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A novel master controller, characterized in that, include: The control lever (1), crankshaft (3), base frame (4) and a set of changeover switch units; The control lever (1) is fixedly connected to the crankshaft (3); the control lever (1) passes through the base frame (4) and the crankshaft (3); a fixed base plate (6) is provided at the bottom end of the base frame (4); The changeover switch unit includes: a camshaft (7), a cam holder (8), a fixed angle plate (9), a crankshaft mounting base (10), and multiple contacts (11); The camshaft (7) is fixed on the base frame (4); The crankshaft mounting base (10) is fixedly connected to the crankshaft (3), and the crankshaft mounting base (10) is sleeved on the camshaft (7); the cam support (8) is fixed on the crankshaft mounting base (10); the cam support (8) is located above the fixed angle plate (9); One end of the fixed angle plate (9) is fixed on the base frame (4), and the other end is fixed on the camshaft (7); multiple contacts (11) are provided on the fixed angle plate (9).

2. The novel master controller according to claim 1, characterized in that, The lower part of the control lever (1) is fitted with a dust cover (2), which is fixed on the base frame (4).

3. The novel master controller according to claim 1, characterized in that, The center of the fixed base plate (6) is provided with a zero-position fixing seat (5), and the operating lever (1) is pluggable and detachable in the zero-position fixing seat (5).

4. The novel master controller according to claim 3, characterized in that, The crankshaft mounting base (10), cam support (8), contact point (11) and zero-position mounting base (5) are all made of plastic.

5. The novel master controller according to claim 1, characterized in that, A central hole is provided on the base frame (4), and a limiting structure (12) is provided on the central hole of the base frame (4); The limiting structure (12) includes four integrally connected arc-shaped protrusions, which are distributed in a rectangular pattern.

6. The novel master controller according to claim 5, characterized in that, The angle of the arc-shaped protrusion is 51°, 63° or 75°.

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