KR20180035548A - Disk brake for industry machinery - Google Patents

Abstract

The present invention provides a disc brake used to brake operation of an industrial machine by being installed at a lower end of a leg of the industrial machine. In other words, according to the present invention, the disc brake includes: a base plate formed at an end of a stand formed in the lower part of a machine body of the industrial machine; a first hinge shaft and a second hinge shaft formed at intervals to be parallel with each other on the base plate; a first arm and a second arm, which are individually connected to the first hinge shaft and the second hinge shaft by penetrating the first hinge shaft and the second hinge shaft; a horizontal support plate inserted into the first hinge shaft and the second hinge shaft in the upper part of the first arm and the second arm; a hand individually connected to an end of the first arm and the second arm by a rotation pin; a pad fixed to a position facing the both hands; a driving unit connected to the other end of the second arm by a second hinge pin and rotating the first arm around the first hinge shaft by operating a rod connected to the other end of the first arm by a first hinge pin; a stopper formed at the center connecting the first hinge shaft and the second hinge shaft between the base plate and the horizontal support plate; and a control bolt positioned in an opposite direction of the pad based on the hinge shaft in the first arm and the second arm and connected to a female screw hole formed in the first arm and the second arm to cross the stopper. The disc brake can reduce size and weight by remarkably reducing the volume and the weight of the brake. Also, the disc brake can be easily installed and maintained.

Description

Disc brake for industrial machinery}

The present invention relates to a disc brake for an industrial machine, and more particularly, to a disc brake installed at a lower part of a bridge of an industrial machine such as a container crane or a gantry crane of a pier or a port to be used for braking the running of the machine.

A brake is a device for decelerating or stopping or stopping a vehicle or a machine in operation. It is a system in which the kinetic energy during operation is converted into heat energy by a mechanical friction device and the frictional heat is released to the atmosphere by braking. And disk type hydraulic brakes have been widely used.

However, such a conventional hydraulic disk brake requires a large number of parts for hermetic sealing of the high-pressure fluid because the brakes obtain the braking force by operating the actuator at a high pressure generated in a pressure chamber filled with oil, It also followed the hassle of having to constantly exchange at regular intervals.

In order to solve such a disadvantage of the conventional hydraulic brake, Korean Patent Registration No. 0157085 discloses a disc brake using an electric motor. A motor shaft 2 having a thread for moving back and forth in response to the power of the electric motor 2; A piston 4 provided in the other side of the housing 1 and having one side supported on the inside of the housing 1 and the other side spaced apart from the piston 4; A pair of pads 6 opposed to the inside of the pair of shoe 5, a disk 7 partially inserted to be in surface contact between the pair of pads 6, And a piezoelectric element 8 sandwiched between one end of the shoe 5 and the piston 4 and proportional to a voltage generated in accordance with the braking force and closely contacting the shoe 5 to the disk 7 side.

However, the electric motor type disk brake as described above has a problem in that the capacity of the electric motor is increased in order to secure a sufficient braking force of the vehicle, and consequently power consumption is increased.

On the other hand, Korean Patent Registration No. 10-0374990 discloses that a brake device case fixedly installed at the lower end of a crane and a coupling of a brake coupling body sliding along a rail in a state of being installed in the brake device case are moved in a four- Therefore, even when the rail is bent upward and downward and rightward and leftward, the brake assembly slides along the rails bent in all directions, and at the joint portion between the brake assembly and the brake device case, the " A rail brake apparatus for a crane is disclosed in which a crane can be smoothly slid even on a deformed rail. However, the above-described technique is not applicable to an industrial machine without a rail, There was a problem.

KR 10-0157085 B1 (July 28, 1998) KR 10-0374990 B1 (Feb. 23, 2003)

The present invention has been made to solve the above-described problems of the prior art,

It is an object of the present invention to provide a simple and compact brake apparatus using an electromagnet instead of a motor or hydraulic pressure in a disc brake for industrial machinery.

It is another object of the present invention to provide a disc brake for an industrial machine capable of accurately and reliably performing a brake operation while easily controlling the brake braking force from the outside.

Although not described separately, other objects within the scope of the present invention are also included in the overall task of the present invention in consideration of the specific contents and claims of the present invention.

In order to solve the above problems, the present invention provides a disk brake for an industrial machine,

A base plate formed at a stand end formed under the base of the industrial machine; A first hinge shaft and a second hinge shaft spaced apart from each other on the base plate; A first arm and a second arm penetratingly connected to the first hinge axis and the second hinge axis, respectively; A horizontal support plate fitted over the first hinge axis and the second hinge axis at the upper portion of the first arm and the second arm; A hand connected to the ends of the first arm and the second arm by pivot pins; A pad fixedly installed at an opposed position of both hands; A second hinge pin connected to the other end of the second arm and connected to the other end of the first arm by a first hinge pin to rotate the first arm about the first hinge axis, Wow; A stopper formed at a central portion connecting the first hinge axis and the second hinge axis between the base plate and the horizontal support plate; And an adjustment bolt which is positioned in the opposite direction of the first arm and the second arm with respect to the hinge axis and is coupled to the female screw hole formed in the first arm and the second arm orthogonally to the stopper .

The driving unit may include: a bracket coupled to the second hinge pin at the other end of the second arm; A mounting plate fixed to the bracket and having a rod through the center thereof; A housing formed behind the mounting plate; A guide pin separating the mounting plate and the housing so as to have a working space; A suction plate disposed in the operation space and formed with a guide groove into which a guide pin is inserted, the other end of the rod being coupled to the center; An electromagnet which is located inside the housing and generates magnetic force when power is applied thereto to provide attraction force to the attracting plate; A head cap having an installation groove formed therein for receiving the coil spring and an adjusting groove formed on an outer circumferential surface of the outer end of the housing to receive a tool; And a coil spring interposed between the suction plate and the installation groove of the head cap, as another solution of the present invention.

According to the concrete means for solving the above-mentioned problems,

Since the braking of the brake is made of the electromagnet, a hydraulic or motor-driven actuator requiring a large power is unnecessary, so that the structure is simple and the power consumption is reduced and the production cost and the maintenance cost can be reduced.

In addition, the overall volume and weight are significantly reduced, making it possible to reduce the size and weight, and to facilitate installation and maintenance.

In addition, since it is operated by the magnetic force, the response speed during braking is high, the accuracy and reliability of the control operation are high, and the braking torque can be easily controlled from the outside.

1 is a perspective view showing a disc brake for an industrial machine provided by the present invention.
2 is a plan view showing a disc brake for an industrial machine provided in the present invention;
3 is an exploded perspective view of a disc brake for an industrial machine provided in the present invention.
4 is a plan view showing the braking action of the disc brake.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may obscure the subject matter of the present invention.

FIG. 1 is a perspective view showing a disc brake for an industrial machine provided in the present invention, FIG. 2 is a plan view showing a disc brake for an industrial machine provided in the present invention, and FIG. 3 is a cross- In an exploded perspective view, the present invention relates to an apparatus and method for frictionally interfitting a pad (10) with a disk (110) connected to a rolling wheel at a lower portion of a base (100) for driving an industrial machine, such as a container crane or a gantry crane, To a disc brake (1) used for braking the running of the disc brake (1).

A stand 2 is provided under the base 100 of the industrial machine with a brake device 1 provided adjacent to the disk 110 and a base plate 3 is formed at the end of the stand 2.

The first hinge shaft 4 and the second hinge shaft 4 'are spaced apart from each other on the base plate 3 and a first arm 5 The first arm 5 and the second arm 5 'are coupled to each other through a second arm 5' pivoting about the second hinge axis 4 'on the first hinge axis 4, 'Are positioned to face each other with the disc 110 therebetween.

The first arm 5 and the second arm 5 'further include a horizontal support plate 16 fitted to the upper portion of the first hinge shaft 4 and the second hinge shaft 4' The first arm 5 and the second arm 5 'are fixed to the upper portion of the base plate 3 and the lower portion of the horizontal support plate 16 so as to prevent the first arm and the second arm from being separated from the hinge axis while increasing the structural strength. And is engaged with the washer 6 through the intermediation of the washer 6 to smoothly perform the turning operation.

The first arm 5 and the second arm 5 'are connected to the ends of the first arm 5 and the second arm 5' by a pivot pin 7, respectively. The opposite ends of the first and second arms 5 and 5 ' (9) to which the pad (10) for stopping the running of the machine is attached. It is preferable that the mounting base 9 is configured to be wider than the grounding area of the pad 10 and the pad 10 is made of a copper sintered alloy having uniform sliding friction and a long service life.

In order to bend the disk 110, the end of the arm provided with the pad 10 must be rotated about the hinge axis. To this end, the end of the arm is coupled to the other end of the first arm 5 by the first hinge pin 18, (20) for rotating the first arm about the first hinge axis (4) by linearly moving the rod (19) having one end connected to the connection port (17) And a second hinge pin 18 'at the other end of the second arm 5'.

When the power is applied by the operation switch or button, the driving unit 20 draws the rod 19 by the attractive force of the electromagnet 27. When the power is shut off, the rod is drawn out by the elastic force of the coil spring 28 , The main body of the driving unit 20 is coupled to the other end of the second arm 5 'by the bracket 21 with the second hinge pin 18'.

The bracket 21 is connected to a mounting plate 22 through which the rod 19 penetrates and a guide tube 23 guiding the rod to move linearly without swinging is coupled to the center of the bracket.

A housing 26 in which an electromagnet 27 and a coil spring 28 are inserted is formed in the rear of the mounting plate 22 so as to be spaced apart from the mounting plate 22 by a guide pin 24 to provide an operating space S.

The other end of the rod 19 is fixedly coupled to the operation space S to constitute a suction plate 25 made of metal having magnetism and the guide pin 24 is inserted in the vicinity of the edge of the suction plate 25 The guide groove 25a is formed to prevent the rod 19 coupled to the attracting plate 25 from being twisted or tilted to one side during operation, thereby ensuring stable operability.

A coil spring 28 is positioned at an inner center of the housing 26 so that one end of the coil spring 28 is inserted into the suction plate 25 and the other end is resiliently mounted on the head cap 29 screwed to the center of the back surface of the housing. The electromagnet 27 generates a magnetic force when the power is applied by the operation of the switch so that the attracting plate 25 is brought into close contact with the housing 26 by the magnetic force and the coil spring 28 28).

The head cap 29 has an installation groove 29a for receiving the coil spring 28 therein and a screw portion 29b for coupling the housing 26 to the outer circumference of the head cap 29. The operator adjusts the compression state of the coil spring 28 to adjust the braking force of the brake 1 by turning the head cap 29 by connecting the tool to the adjusting groove 29c formed at the end of the head cap 29 exposed to the outside, It can be added or subtracted.

At this time, when the thrust bearing is inserted into the mounting groove 29a of the head cap 29 and the end of the coil spring 28 is mounted on the thrust bearing 30, the head cap 29 is easily rotated The braking force can be adjusted more easily and the mechanical durability of the spring can be improved by preventing the mechanical damage due to the friction between the inside of the adjusting groove 29c and the spring.

Unlike the first arm 5 directly connected to the driving unit 20 and the rod 19, the operation of the second arm 5 'is performed between the base plate 3 and the horizontal supporting plate 16 A stopper 11 formed at a central portion connecting the first hinge axis 4 and the second hinge axis 4 'to the first arm 5 and the second arm 5' The positions of the adjustment bolts 14 and the adjustment bolts 14 which are located on the opposite sides of the pad 10 and which are orthogonal to the stopper 11 and which are coupled to the female screw holes 13 formed on the first and second arms And a lock nut 15 for holding the lock nut 15. The operation of the lock nut 15 will be described below with reference to the drawings.

4 is a plan view showing the braking action of the disc brake.

In general, industrial machines such as gantry cranes in docks are frequently used in a stationary state because they run only when they need to perform their own tasks such as unloading cargo in a stationary state and move their positions. Therefore, the brake pad 10 is pressed to the disk 110 in a normal state to maintain a stable stop state, and allows the wheel to travel by separating the pad 10 only when the machine is running.

4A shows a state where the pad 10 of the brake is stopped by pressing the disk 110. When the magnetic force is not applied to the electromagnet 27, the elastic force of the coil spring 28, Is spaced apart from the base 100 by a predetermined gap L and is also spaced apart from the stopper 11 and the adjustment bolt 14 coupled to the first arm 5 and the second arm 5 '.

When the operator of the driver's seat operates the switch or the lever to apply electric power when the position of the industrial machine is moved, a magnetic force is generated in the electromagnet 27 to attract the attracting plate 25 made of metal having magnetism. The rod 19 coupled to the center of the attracting plate 25 is pulled in the direction in which the drive unit 20 is positioned so that the first arm 5 rotates counterclockwise about the first hinge axis 4, Is spaced from the disc 110. [ At this time, the inner end of the adjustment bolt 14 coupled to the first arm comes into contact with the stopper 11 to limit the rotation angle of the first arm 5. [

When the suction plate 25 is in close contact with the housing 26 and the rotation of the first arm 5 is restricted by the adjustment bolts 14 as shown in FIG. 4C, the housing is closely contacted with the suction plate 25, The second arm 5 'is rotated clockwise about the second hinge axis 4' until the adjustment bolt 14 coupled to the second arm 5 'contacts the stopper 11 10 are spaced apart from the disc 110.

When the magnetic force is released to the electromagnet 27 by the switch being cut off first, the attracting plate 25 is moved by the compression force of the coil spring 28 installed at the center of the housing 26, . Accordingly, when the first arm 5 rotates in the clockwise direction, the pad 10 is frictioned with one surface of the disk 110, and the rotation of the first arm is restricted. In this case, the housing 26 is pushed to the right 2 arm 5 'rotates in the counterclockwise direction to press the disc 110 on the opposite side to perform braking.

Both sides of the disk are uniformly pressed by the pad 10 formed at the ends of the first arm 5 and the second arm 5 'so that the first arm and the second arm are hinge axes 4 ', But the coupling with the hand 8 is made of the pivot pin 7, so that the phenomenon of uneven wear of the pads is minimized, so that the braking force is excellent and the response is high.

In addition, the coil spring 28, which provides the braking force, is not exposed to the outside but is located inside the housing to be safe from contamination and external impact, and the head cap 29 is installed via the thrust bearing 30, It is possible to guarantee excellent and stable braking power for a long period of time.

While the present invention has been described in connection with what is presently considered to be the most practical embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention. Therefore, the scope of protection of the present invention is not limited to the above-described embodiments, but the scope of the claims of the following claims and the scope of protection from these techniques to equivalent technical means should be acknowledged.

1: Disc brake 100: Gas 110: Disk
2: stand 3: base plate 4: first hinge shaft 4 ': second hinge shaft 5: first arm 5' second arm
6: Washer 7: Pivot pin 8: Hand 9: Mounting base 10: Pad
11: stopper 12: connecting plate 13: female thread hole 14: adjusting bolt 15: locking nut 16: horizontal supporting plate
17: connector 18: first hinge pin 18 ': second hinge pin 19: rod
20:
21: bracket 22: mounting plate 23: guide tube 24: guide pin
25: attracting plate 25a: guide groove 26: housing 27: electromagnet 28: coil spring
29: head cap 29a: mounting groove 29b: threaded portion 29c: adjusting groove 30: thrust bearing
S: Working space L: Clearance

Claims (3)

A stand 2 protruding from the bottom of the base 100 of the industrial machine;
A base plate (3) formed at an end of the stand (2);
A first hinge shaft 4 and a second hinge shaft 4 'formed side by side on the base plate 3;
A first arm 5 and a second arm 5 'respectively penetratingly connected to the first hinge axis 4 and the second hinge axis 4';
A horizontal support plate 16 fitted to the first hinge axis 4 and the second hinge axis 4 'at the upper portion of the first arm 5 and the second arm 5';
A hand 8 connected to the end of the first arm 5 and the second arm 5 'by a pivot pin 7;
A pad 10 fixedly installed at an opposite position of both hands 8;
A rod 19 connected to the other end of the second arm 5 'by a second hinge pin 18' and connected to the other end of the first arm 5 by a first hinge pin 18, (20) for rotating the first arm (5) about the first hinge shaft (4) by operating the first arm (5);
A stopper 11 formed at a center portion between the base plate 3 and the horizontal support plate 16 and connecting the first hinge axis 4 and the second hinge axis 4 ';
The first arm 5 and the second arm 5 'are located opposite to each other in the direction in which the pad 10 is installed with respect to the hinge axis. The first arm 5 and the second arm 5' An adjustment bolt 14 coupled to the female screw hole 13 formed in the first and second screw holes 5 ';
Wherein the disc brake comprises a disc brake.
The method of claim 1,
The driving unit 20 includes:
A bracket 21 coupled to the second hinge pin 18 'at the other end of the second arm 5';
A mounting plate 22 fixed to the bracket 21 and passing through the center of the rod 19;
A housing (26) formed behind the mounting plate (22);
A guide pin 24 for separating the mounting plate 22 and the housing 26 so as to have a working space S;
A suction plate 25 having a magnetic property in which a guide groove 25a is formed in the working space S and a guide pin 24 is inserted therein and the other end of the rod 19 is coupled to the center;
An electromagnet 27 located inside the housing 26 to generate a magnetic force when power is applied thereto and provide attraction force to the attracting plate 25;
An installation groove 29a for receiving the coil spring 28 is formed on the inside and a control groove 29c is formed on the outer circumferential surface of the outer end of the housing 26, A cap 29;
A coil spring 28 interposed between the suction plate 25 and the mounting groove 29a of the head cap 29;
Wherein the disc brake comprises a disc brake.
The method of claim 2,
Characterized in that the thrust bearing (30) is inserted into the adjusting groove (29c) of the head cap (29) so that the coil spring (28) is mounted on the thrust bearing (30).

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