KR100500508B1 - A silent clutch brake unit for the winch - Google Patents

Abstract

The present invention relates to an anti-rotation clutch clutch and brake device of a winch, and more particularly, to a unidirectional clutch bearing and a reverse direction to prevent the winch from being reversed by the weight of a lifted heavy weight. By installing the interlocking brake device to easily operate the winch with only motor control, the conventional winch is equipped with a unidirectional clutch brake using a ratchet to prevent such reverse rotation, but the ratchet is engaged when the winch operates. There is noise rubbing in the fixed fixing groove, the present invention is to provide a brake device using a noise-free clutch bearing installed in the winch deceleration unit.

Description

Silent Clutch Brake Unit for the Winch

The present invention relates to a device for preventing the reverse rotation by the weight of the lifting weight lifting device, and more particularly, the lifting device by the weight of the heavy weight by using the one-way clutch and the engagement brake using the anti-rotation clutch bearing It relates to a clutch brake device that prevents reverse rotation.

Conventional hoist installed one-way clutch brake using ratchet 160 at one end of motor shaft or reduction gear part to prevent reverse rotation by the weight of heavy weight, but fixed groove engaged with ratchet 150 when motor rotates There was a problem that the friction sound with 150 could not be reduced.

In order to solve the above problems, the present invention, without using a ratchet, install a reverse clutch clutch bearing in the unidirectional clutch, attach the brake pad 50 to the inner ring 20 of the reverse clutch clutch bearing and thread (71) The purpose of the present invention is to provide a clutch brake with no noise by providing between the gear parts of the engagement type using the).

The present invention for achieving the above object relates to a clutch brake without noise, the reverse rotation clutch bearing is installed in the clutch to rotate in the forward direction (counterclockwise) but the reverse rotation prevention clutch bearing in the reverse direction (clockwise) Reverse rotation prevention means for preventing the rotation due to the operation of; Means for transmitting and controlling the power of the motor by attaching the brake pads (50) to the left and right of the unidirectional clutch and installing them between the gear (60) and the gear (70), which are designed to engage with threads (61, 71); Fixing means for fixing the clutch bearing so as to be fixed to the winch reducer portion; And it provides a noiseless clutch brake, characterized in that for rotating the wire drum 140 by the forward rotation and the reverse rotation of the motor through the fixing means 13 to prevent the reverse rotation due to the weight of the heavy weight.

Hereinafter, a noiseless clutch brake for a winch according to the present invention will be described in detail with reference to the accompanying drawings.

Figure 1 is a perspective view showing the structure of the reduction gear portion of a conventional hoisting machine. Referring to Figure 1, the primary reduction gear unit power connected to the motor shaft 100 in order to prevent the reduction gear is rotated back by the weight of the heavy weight. The reverse rotation prevention clutch which used the ratchet 160 was provided between the side gear 60 and the load side gear 70. Since the ratchet 160 is caught by the ratchet groove 150 when the lifted heavy weight is lowered, there is no noise between the ratchet and the ratchet groove. However, when lifting the heavy weight, the ratchet 160 and the ratchet 160 continue to be lifted while lifting the heavy weight. The ratchet groove 150 hits and generates noise. FIG. 2 is a perspective view illustrating a unidirectional clutch to which the clutch bearing according to the present invention is applied. Referring to FIG. 2, the clutch bearing is a case in which the outer ring 10 is fixed. The inner ring 20 can be rotated in one direction but not rotated in the other direction. A fixing means 13 is placed on the unidirectional clutch to fix the winch body. Fig. 3 shows a winch according to the present invention. 3 is a perspective view of the deceleration of FIG. 3, as described above, the ratchet 160 is reduced to reduce noise generated when lifting a heavy weight or descending a heavy weight. Unlike the conventional method, by applying a reversing prevention clutch bearing to the unidirectional clutch, noise is not generated even when lifting the heavy weight or lowering the lifted heavy weight. FIG. 5 shows the lifting time of the heavy weight reduction gear of the hoisting gear according to the present invention. 4 is an exploded perspective view showing a reverse rotation prevention means according to the present invention. Referring to FIG. 5, when lifting a heavy object, the motor shaft 100 is viewed from the gear side. The counterclockwise rotation is performed, and the primary reduction gear power side gear 60 is rotated clockwise. At this time, as the nut is locked to the bolt, the primary reduction gear power side gear 60 is locked to the square thread 71 installed in the primary reduction gear load side gear 70 to be engaged. When the gear is engaged, the power is transmitted to the inner ring 20 of the unidirectional clutch bearing, and the rotational direction of the inner ring rotates without any resistance because the rotation direction of the clutch bearing is possible. On the contrary, the wire drum 140 shown in FIG. When the counterclockwise direction is rotated counterclockwise due to the weight of the heavy lifting weight, the first gear reducer gear side 70 rotates in the same direction under the influence of a series of gears that are engaged, and the square thread shown in FIG. Under the action of 71, the first reduction gear is engaged with each other as the bolt is locked to the power side gear 60. At this time, when the reverse rotational power is transmitted to the unidirectional clutch bearing inner ring 20, since the direction of rotation of the clutch bearing inner ring 20 is the non-rotating direction shown in FIG. 2, the reverse rotational power is transmitted to the unidirectional clutch bearing outer ring 10 and the fixing means 13 The reverse rotational power is canceled because the clutch bearing is fixed. In addition, when the motor rotates in a clockwise direction opposite to the lifting time of the heavy goods shown in FIG. ) Rotates counterclockwise, and the first reduction gear power side gear 60 is firstly decelerated under the influence of the square thread 71 installed on the primary reduction gear load side gear 70, such as loosening the nut from the bolt. It is separated from the gear of the subordinate load. At this time, since the rotational force is not transmitted to the inner ring 20 of the unidirectional clutch bearing, it is possible to rotate without load. At this time, the snap ring 73 installed in the groove 74 of the load reduction gear 70 of the primary reduction unit shown in FIG. The secondary reduction gear power side gear 60 is fixed to prevent the escape of gears from the primary reduction gear load side gear 70, and power transmission is performed by the square fixing part 72 of the primary reduction gear load side gear 70. Since the anti-rotation stopper 80 is installed on the protrusion 62 installed on the primary reduction gear power side gear 60, power is transmitted.

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Looking at the effect of the noiseless clutch brake for the winch according to the present invention, there is no need to install a separate brake device, such as a conventional solenoid brake in order to prevent the lifting weight is lowered by its own weight, a separate brake for brake It is possible to operate the winch machine only by controlling the forward or reverse rotation of the motor without the need for a device, and it is possible to be small and light by eliminating the need for a separate ratchet or brake. Noise can be realized, which brings the effect of improving the working environment.

1 is a perspective view showing the structure of a conventional hoist to prevent reverse rotation using a ratchet

2 is a perspective view showing a unidirectional clutch to which the clutch bearing according to the present invention is applied;

Figure 3 is a perspective view showing a deceleration portion of the winch according to the present invention

Figure 4 is an exploded perspective view showing a reverse rotation prevention means according to the present invention Figure 5 is a combined state diagram showing the rotation direction of each reduction gear when lifting the heavy lifting gear reduction gear portion according to the present invention

<Explanation of Signs of Major Parts of Drawings>

10: one-way clutch bearing outer ring 20: one-way clutch bearing inner ring

30: Noiseless Clutch Brake

50: brake pad

60: primary reduction gear (power side) 70: primary reduction gear (load side)

80: anti-rotation stopper 100: motor shaft

110: 2nd reduction gear (power side) 120: 2nd reduction gear (load side)

130: 3rd reduction gear (drum side) 140: wire drum

150: ratchet guide 160: reverse rotation ratchet

Claims (1)

The one-way clutch brake of the winch, A unidirectional clutch having fastening means 13 in the anti-reverse clutch bearings 10 and 20; The unidirectional clutch is placed between a series of reduction gears 60 and 70, and the gear is transmitted when the heavy object is lifted by the action of the square thread 71 installed on the reduction gear, and when the lowered weight is lowered, the reduction gear is dropped. The power is transmitted through the anti-rotation stopper without being affected by the rotation, and the reverse rotational power transmitted to the inner ring of the unidirectional clutch is canceled by the action of the unidirectional clutch when the reduction gear is engaged due to the weight drop.