JPS61150994A - Winch device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] Industrial Application Fields This invention is widely used for lifting and moving loads in various fields such as agriculture, forestry, fisheries, civil engineering, and construction. This invention relates to a winch device for wire-wrapped soil.

In general, the hoist N4 that winds up the wire is installed so as to form one fleet angle between it and the sheave that is located in front of the hoisting trunk and ultimately supports the wire that is being hoisted. need to be done.

The 7-reet angle is for the winding surface of the wire to be formed evenly along the length direction of the outer circumferential surface of the winding drum, and usually, as shown in Figure 2, the winding surface of the wire is formed evenly along the length of the winding drum (support) A fleet angle h) is formed by setting the installation interval [F] between the sheave ■ and K to be 20 times the length (I) of the hoisting cylinder ω.

Problems to be Solved by the Invention As mentioned above, a large space is required to install the hoisting trunk with a large distance between it and the sheave, so there is no problem if there is enough space to install the winch. However, for example, a load lifting winch attached to a traveling machine running on a timber collection cableway.

If it is limited to a small space and is installed in a nine-aircraft body, Vc is required, and the busy pilot must be made long to obtain a fleet angle. This may cause inconveniences such as having to take

Means for Solving the Problems Accordingly, the present invention provides a winding ljl located in front of the hoisting cylinder.
The wire support position of the sheave can be moved higher at the center and lower at the left and right sides. A winch made like this! It provides 1 train.

Function As described above, in the present invention, the wire support position of the sheave, which is located in front of the hoisting drum and ultimately supports the wire being wound up, is automatically high at the center and becomes lower as it moves to the left and right ends. With this structure, as the winding position of the wire moves laterally on the outer circumferential surface of the hoisting drum, the wire supporting position of the sheave moves left and right to perform wire arrangement for the hoisting WAK. In addition, the movement of the upper r wire support position is not parallel to the rotation axis of the winding cylinder, and is highest at the front of the central part of the cylinder and becomes lower as it approaches both left and right ends, so that the wire is wound first. Kill! slides along the side of the wire. The winding surface of the wire is smoothed in the direction of the length of the outer circumferential surface of the winding drum. , the installation interval between the sheave and hoisting cylinder can be significantly shortened.

Examples Examples of the present invention will be described below with reference to the drawings. In Figure 1.3, which shows an example of the present invention, the chain is a hoist-like frame, and (1) is a rotating shaft (2) with both ends attached. The hoisting drum is supported horizontally by bearing on the frame (to), and (3) is a support shaft that is rotatably installed in front of the central part of the hoisting torso by bearing the top and bottom on the frame (to). As shown by the imaginary line in the figure, it has an axis = 1)) perpendicular to the rotational axis of the hoisting drum (1), and the lower end of the coaxial shaft (3) is The torso (1) k is tilted towards each other. (
41 has its proximal end attached to this support shaft (3), and its tip extends above the hoisting cylinder (1). The wire (61 is a sheave at the tip protruding from the lower surface of the frame surface) 1 is attached, and the guide pulley (81) provided on the frame surface and the sheave formed in a cylindrical shape are It reaches the sheave (51) via the lower part of the support shaft (3) and another guide pulley (9) attached to the arm +41. A motor (an) that drives the rotation shaft 121 of the hoisting drum (1) is connected to a wire (61) that is attached to the lower surface of the frame and a detection lever (an) that swings when the hook (71) hits the tip.
+1) IL and the same lever a1+I! It is configured so that the drive of the motor ^ is stopped by the operation of L, and overwinding is prevented by ζt switch unb! ! It is electric.

The winch device of this embodiment I configured as described above is as follows:
When the wire r61 is wound, as the winding position of the wire (610) moves laterally on the outer peripheral surface of the hoisting cylinder (1), the sheave (51) uses the support shaft (3) as a fulcrum in the direction of movement. It moves with the swing of the arm (4).And,
According to the length of the arm (4) extended from the support shaft (31) tilted in elevation, the movement is caused by the axis of rotation of the hoisting drum (1) as shown by the neutralized imaginary line (a) in Figure 3. Perform an arcuate motion not parallel to the ship, thereby causing the support point of the wire (6) to occupy the highest position in the center of the hoisting shell (1) and the lowest position at both left and right ends, and move like a rock. urge

Next, in Fig. 4.5 showing Embodiment 2 of the present invention, (
3) is the frame of the hoisting machine, (1) is the hoisting drum which is horizontally hung with both ends of the rotating shaft (2) supported by the frame (G),
(5) is a sheave located in front of this hoisting drum (!), which ultimately supports the wire +61 wound on the hoisting drum. This sheave (n, is the front of the hoisting body (1)!/c
The frame 9' + I/C has a rotating support shaft a3 which is supported at both ends and whose axis a) is parallel to the winding cylinder + 11's rotating shaft (kneading), and the winding is carried out as shown in Fig. 4. Upper trunk (1) K has a curved surface aj of almost width, and the center of the mosquito curved surface a3 is a large-diameter circumferential surface υ′, and it is a conical curved surface that gradually transitions to a small-diameter curved surface a:rK toward both left and right ends. By providing the wire (6), the supporting position of the wire (6) can be adjusted to the hoisting cylinder (1).
The sheave (51,
A fixed position guide pulley is used to supply the wire (61) to the wire (61).

This embodiment ■, which is configured as described above, has a hoisting cylinder (11K
The winding position of the wire +61 to be wound is the winding cylinder +1+
As it moves laterally on the outer peripheral surface of the sheave (5), the wire support point on the sheave (5) moves in the direction of movement, and its support position is located at the center of the hoisting drum (1) on the large diameter curve (I). As the winding position moves to the left and right ends, the wire support point gradually moves to the small diameter curve 6f, and the wire support point gradually moves to a lower position.

Effects of the Invention As described above, the present invention provides a winding system which is located at the front of the hoisting drum,
Sheave K that ultimately supports the wire.

The support point of the wire moves in an inclined manner so that the supporting point of the wire occupies the highest position in the center of the winding cylinder and the lowest position at both ends. The wire is guided so that it slides along the side of the wire wound on the top end of the winding drum, and winding progress toward the end of the winding drum and unwinding toward the center are performed smoothly. Therefore, the winding surface of the wire is formed evenly in the length direction of the outer circumferential surface of the hoisting cylinder without requiring a 7-leat angle, so that the installation interval between the sheave and the hoisting cylinder can be extremely shortened. This has the effect of making the aircraft shorter and lighter.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway elevational view showing Embodiment I of the present invention, FIG.
The figure is a diagram explaining the fleet angle, Figure 3 is a diagram explaining the operation of the coupe of the embodiment, and Figure 4 is a partially cutaway front view schematically showing the embodiment 2 of the present invention. Figure E5 is a diagram illustrating the action of the sheave of Example (2). F...Frame, 1...Hoisting cylinder, 2...Rotating shaft, a...
Rotation axis, 3...Support axis,)...Axis, 4...Arm,
5. ...Sheave, 6..Wire, 7..Hook, 8゜9
...Guide pulley, 10..Motor, 11..Overwinding prevention at, lla..Detection lever, 111)..Limit switch, 5. ...Sheave, 12...Rotation support shaft,
d... Axis line, 13... Circumferential surface of sheave, 13'... Large diameter circumferential surface, 1f... Small diameter circumferential surface, 14... Guide pulley. Applicant: Noriji Tsujimoto, Agent: Shin Nakajima. ↓Sa1... Hoisting trunk 5t... Sheave. 2... Rotating shaft 12... Rotating support shaft d...
Rotation axis d... Axis 3... Support shaft 13... Sheave circumferential surface b...
・ Axis line 13'... Large diameter circumferential surface 4... Arm 13''... Small diameter circumferential surface 5... Sheave C... Circular arc

Claims (3)

[Claims] (1) The sheave, which is located in front of the hoisting drum and ultimately supports the wire wound into the hoisting drum, has a wire support point.
A winch device equipped with a sheave that is inclined and moves so that it occupies the highest position in the center of a hoisting cylinder with respect to the cylinder and occupies the lowest position at both ends. (2) The sheave is swingable in front of the hoisting shell via a support shaft whose axis is orthogonal to the rotational axis of the hoisting shell and whose lower end is tilted at an elevation angle so as to approach the hoisting shell. The winch device according to claim 1, wherein the winch device is attached to the tip of an arm of an appropriate length provided on the winch device. (3) the sheave has a rotation support shaft whose axis is parallel to the hoisting drum in front of the hoisting drum, and
It is composed of a sheave having a circumferential surface with a width almost similar to that of the hoisting drum, which has a large diameter circumferential surface at the center and a conical curved surface formed so as to gradually transition to a small diameter circumferential surface toward both ends. The winch device according to claim 1, characterized in that: