CN114020092A

CN114020092A - Electric control pull rope control operating rod mechanism

Info

Publication number: CN114020092A
Application number: CN202111078702.8A
Authority: CN
Inventors: 刘志斌; 孙文; 张笑宇; 乔子铎
Original assignee: Zhejiang Qiantang Robot And Intelligent Equipment Research Co ltd
Current assignee: Zhejiang Qiantang Robot And Intelligent Equipment Research Co ltd
Priority date: 2021-09-15
Filing date: 2021-09-15
Publication date: 2022-02-08

Abstract

The invention discloses a pull rope control operating rod mechanism which comprises a linkage disc, a fixed frame, a pulley, a pull rope, a servo motor and a wheel disc. The two groups of pull ropes can realize the movement and the combined movement of the operating rod in four directions only by being driven by two servo motors. The rotation angle of each motor determines the movement amount of the operating rod, and the control is accurate. The invention has the advantages of ingenious structure, transverse movement driven by rotation and simple manufacture.

Description

Electric control pull rope control operating rod mechanism

Technical Field

The invention relates to the field of automatic transformation, in particular to an electric control pull rope control operating rod mechanism.

Technical Field

With the trend of industrial operation towards being unmanned, the work safety is more and more emphasized, operators in dangerous work environments can be liberated, and the potential problems can be perfectly solved by controlling the operating rod by a remote control or automatic operation method.

However, the existing remote control operation rod technology occupies a large amount of space, needs too high capital, and has the defects of inaccurate control and the like. Remote control such as triple-play requires a control method of the entire apparatus to be changed, and thus requires a particularly large capital. Such as laterally adding a point push rod, this method has a disadvantage of occupying a large amount of space. If the control is directly carried out by a remote control universal push rod, the control precision of the method is too low and the control cannot be carried out at a low speed.

Disclosure of Invention

In order to solve the problems in the background art, the invention provides an electric control pull rope control operating lever mechanism. Mainly to the problem that mechanical type action bars in each field can not long-range automatically controlled, through reasonable scheme, design and make a set of complete mechanical structure, the long-range automatically controlled of solution mechanical type action bar that can be perfect can make a contribution in the mechanical vehicle of future mill drives.

The invention adopts the following technical scheme: an electric control pull rope control operating rod mechanism comprises an operating rod, a linkage disc, a fixed frame, a pulley, a proportional valve, a pull rope, a servo motor and a wheel disc;

the servo motor drives the wheel disc to rotate; the pulley is fixed on a fixed frame, and the fixed frame is fixedly connected with the operating rod; an output shaft of the servo motor is fixedly connected with the wheel disc, and the servo motor is fixed;

the operating rod is fixedly connected with the linkage disc, the linkage disc is fixedly connected with two ends of the pull rope, the pull rope penetrates through the two oppositely arranged pulleys, and the middle of the pull rope is connected with the wheel disc.

In the above technical solution, further, the number of the pulleys is four, and the four pulleys are symmetrically arranged relative to the operation rod; the number of the pull ropes is two, and the number of the wheel discs is two; the two wheel discs respectively control the tightening or loosening of the pull ropes connected with the wheel discs, and the two wheel discs are matched with each other to drive the operating rod to move towards the appointed direction.

Furthermore, a universal hinge is arranged between the operating rod and the proportional valve, and the bottom of the proportional valve is fixed.

Furthermore, the wheel disc rotates to drive one end of the pull rope to be tightened and the other end of the pull rope to be loosened, the pull rope drives the linkage disc to deflect towards the tightening direction, and the linkage disc drives the operating rod to move towards the tightening direction, so that the proportional valve is controlled to complete electric control of the operating rod.

The invention also provides a control mechanism which comprises at least two pull rope control operating rod mechanisms.

The invention has the beneficial effects that: the invention utilizes the tensile force of the rope as the power for driving the operating rod, and utilizes the servo motor to determine the feeding amount of the rope so as to control the moving amount of the operating rod. Simple structure, strong practicability and small occupied space. The mechanism has low manufacturing cost, can finish the action of the mechanism only by one set of the pull rope and the pulley mechanism of two motors, has simple and understandable structure, and can be understood and manufactured without too complicated operation design.

Drawings

FIG. 1 is a schematic diagram of the apparatus of the present invention;

wherein, 1 is the action bars, 2 is the linkage disc, 3 is the mount, 4 is the pulley, 5 proportional valves, 6 is the stay cord, 7 is servo motor, 8 is the rim plate.

Detailed Description

The method and apparatus of the present invention are further described below with reference to the accompanying drawings.

Fig. 1 shows a pull rope control operating lever mechanism of the present invention, which includes an operating lever 1, a linkage disk 2, a fixed mount 3, a pulley 4, a proportional valve 5, a pull rope 6, a servo motor 7, and a wheel disk 8;

the servo motor 7 drives the wheel disc 8 to rotate; the pulley 4 is fixed on the fixed frame 3, and the fixed frame 3 is independently fixed in the space; an output shaft of the servo motor 7 is fixedly connected with the wheel disc 8, and the servo motor 7 is independently fixed in the space;

the operating rod 1 is fixedly connected with the linkage disc 2, the linkage disc 2 is fixedly connected with two ends of the pull rope 6, the pull rope 6 penetrates through the two pulleys 4 which are oppositely arranged, and the middle part of the pull rope 6 is connected with the wheel disc 8.

The number of the pulleys 4 is four, and the four pulleys are symmetrically arranged relative to the operating rod 1; the number of the pull ropes 6 is two, and the number of the wheel discs 8 is two; the two wheel discs 8 are respectively used for controlling the tension or the release of the pull rope 6 connected with the wheel discs, and the two wheel discs are mutually matched to drive the operating rod 1 to move towards a designated direction.

And a universal hinge is arranged between the operating rod 1 and the proportional valve 5. The proportional valve 5 is independently fixed in space.

The wheel disc 8 rotates to drive one end of the pull rope 6 to tighten up, one end of the pull rope is loosened, the pull rope 6 drives the linkage disc 2 to deflect in the tightening direction, and the linkage disc 2 drives the operating rod 1 to move in the tightening direction, so that the proportional valve 5 is controlled to complete electric control of the operating rod.

A control mechanism comprises at least two pull rope control operating rod mechanisms.

The power source is two servo motor 7, utilizes the motion length of the accurate control stay cord 6 of servo motor 7, and what the stay cord 6 adopted is rigid material, does not have elastic rope body, can effectively avoid the error to warp. The structure is arranged compactly and equidistantly, and the consistency of front-back, left-right displacement is achieved.

The concrete action is that servo motor 7 rotates to a direction, the point of the dead stay cord of lock of fixing on servo motor 7's rim plate 8 rotates, it relaxs to drive 6 one end of stay cord and tighten up one end, it moves to tightening up the direction to drive linkage disc 2, thereby drive action bars 1 to tightening up the direction slope, action bars 1 moves as general as the manual operation, reach the effect of ideal, and because servo motor 7's the accurate control of real time control, can accomplish more accurate control mechanical structure's motion.

Claims

1. A pull rope control operating rod mechanism is characterized by comprising an operating rod (1), a linkage disc (2), a fixing frame (3), a pulley (4), a proportional valve (5), a pull rope (6), a servo motor (7) and a wheel disc (8);

the servo motor (7) drives the wheel disc (8) to rotate; the pulley (4) is fixed on the fixing frame (3), and the fixing frame (3) is fixed; an output shaft of the servo motor (7) is fixedly connected with the wheel disc (8), and the servo motor (7) is fixed;

the operating rod (1) is fixedly connected with the linkage disc (2), the linkage disc (2) is fixedly connected with two ends of the pull rope (6), the pull rope (6) penetrates through the two pulleys (4) which are oppositely arranged, and the middle of the pull rope (6) is connected with the wheel disc (8).

2. The rope control lever mechanism according to claim 1, characterized in that the pulleys (4) are four in number, four being symmetrically arranged with respect to the lever (1); the number of the pull ropes (6) is two, and the number of the wheel discs (8) is two; the two wheel discs (8) respectively control the tightening or loosening of the pull ropes (6) connected with the wheel discs, and the two wheel discs are matched with each other to drive the operating rod (1) to move towards the appointed direction.

3. The pull-cord controlled operating lever mechanism according to claim 1, characterized in that a universal hinge is provided between the operating lever (1) and the proportional valve (5).

4. The pull-cord controlled operating lever mechanism according to claim 1, wherein the wheel disc (8) rotates to drive one end of the pull cord (6) to be tightened and the other end of the pull cord to be loosened, the pull cord (6) drives the linkage disc (2) to shift in the tightening direction, and the linkage disc (2) drives the operating lever (1) to move in the tightening direction, so as to control the proportional valve (5) to complete the electric control of the operating lever.

5. A control mechanism comprising at least two pull-cord controlled lever mechanisms according to any one of claims 1-4.