JP2021046295A - Endless winch - Google Patents

Abstract

To provide an endless winch capable of preventing deterioration of a wire rope caused by severe contact with a flange of a drum and suppressing abrasion of the flange.SOLUTION: This endless winch comprises one drum 22 and another drum 32 in which pluralities of rows of grooves 24, 34 for winding wire ropes 41 are formed. The one drum 22 and the other drum 32 are arranged so that axes of both have intersection angles. When the grooves 34 of the other drum 32 are seen from the one drum 22 side, a displacement amount between the contact point 35 and the separation point 36 of the wire rope 41 is set to coincide with a gap between the grooves 24 of the one drum 22. Thus, the separation points 26, 36 and the contact points 25, 35 of the wire rope 41 are arrayed without a step between the one drum 22 side and the other drum 32 side, severe contact of the wire rope 41 with flanges 23, 33 can be prevented, deterioration of the wire rope 41 is prevented, and abrasions of the flanges 23, 33 are suppressed.SELECTED DRAWING: Figure 1

Description

The present invention relates to an endless winch used for driving a scraper or the like for removing filth generated in a piggery.

In a large piggery, it is difficult to manually collect filth such as manure. Therefore, as shown in Fig. 5, normally, a cage for breeding with a drainboard is used, and the discharged filth passes through the gap of the drainboard and falls to the floor of the piggery, and this is scraped up with a scraper. Realizes automation of work. In FIG. 5, two rows of breeding cages are arranged, and scrapers are arranged under each cage. These two scrapers are connected by a wire rope laid in an annular shape, and the wire rope is moved by an endless winch. The scraper can maintain the hygienic condition in the piggery by automatically moving the scraper on a regular basis based on the passage of time.

As an example of the prior art related to the present invention, the following patent document is mentioned, and among them, patent document 1 discloses a rope breakage prevention device for a dung scavenging device for a livestock barn. Similar to FIG. 5, the defecation device of this document has a structure in which a rope is connected to a scraper and the rope is moved by a drive unit, in order to prevent the rope from being cut by a slip generated by the drive unit. It is characterized by providing a detection switch that monitors the rotation of the idler pulley that bends the rope in the path. When this detection switch detects any abnormality, the motor of the drive unit is automatically stopped to prevent the rope from breaking.

The following Patent Document 2 discloses a traction winch capable of neatly winding a rope. This winch is mainly composed of a winch body and a take-up drum, of which the winch body has a structure similar to that of an endless winch, and a rope extending from the winch body is wound by the take-up drum. A plurality of displaceable pulleys are arranged around the take-up drum, and the pulleys are naturally displaced by the tension of the rope, so that the fleet angle when the rope is taken up by the take-up drum is suppressed. , The rope can be wound in an aligned state.

Further, Patent Document 3 discloses an endless winch capable of preventing wire slippage with a simple configuration. In this endless winch, two drums are arranged side by side, a swingable arm is arranged on the outside of each drum, and a plurality of pressing rollers are attached to the tip of the arm. Since the pressing roller is pressed against the drum by a spring, it is possible to prevent the wire wound around the drum from loosening, and as a result, the wire can be prevented from slipping.

Published Practical Publication No. Heisei 2-78056 Japanese Unexamined Patent Publication No. 9-2786 Jikkenhei 7-4484

In FIG. 5 above, the scraper is moved by an endless winch, but the wire rope may break at an unexpected timing, which is annoying to the persons concerned. There are various causes of this breakage, such as slipping on the endless winch and corrosion due to manure, and one of them is due to the violent contact of the endless winch with the drum, as shown in FIG. As shown in this figure, the drum constituting the endless winch is formed with a plurality of rows of grooves for winding the wire rope. Then, the wire rope wound around the drum sequentially moves in the axial direction of the drum as it reciprocates between the opposing drums. Therefore, the grooves of the opposing drums are not lined up on the same line, and the drums are arranged so as to be offset by half the distance (half pitch) between the adjacent grooves, and the wire rope is placed between the opposing drums. It moves smoothly in the axial direction while reciprocating.

However, the wire rope that moves between the opposing drums by arranging the grooves of the opposing drums in a staggered manner has an "inclination" with respect to the direction orthogonal to the axis of the drum, as shown in FIG. become. Due to this inclination, at the position where the wire rope starts to contact the groove or the position where the wire rope separates from the groove, the flanges lined up on both sides of the groove and the wire rope come into vigorous contact, and the flange wears rapidly and the surface of the wire rope. Is roughened by friction, the wires constituting the wire rope are broken and fluffing occurs, the wire rope is deteriorated and the strength cannot be maintained, and the wire rope is broken. This "tilt" can be reduced by moving the drums away from each other, but in that case, it is unavoidable to increase the size of the device.

The present invention has been developed based on these circumstances, and an object of the present invention is to provide an endless winch capable of preventing deterioration of the wire rope due to violent contact with the flange of the drum and suppressing wear of the flange.

The invention according to claim 1 for solving the above problems also has a cylindrical one drum and the other drum, and a prime mover for rotation can be connected to either one or both of them. The one drum and the other drum are arranged so that their outer peripheral surfaces are adjacent to each other, and an endless winch having a plurality of rows of grooves formed around the outer peripheral surfaces to wind a wire rope. The one drum and the other drum are arranged so that both axes are not parallel but have an intersecting angle, and the one drum side is used as a reference from the direction orthogonal to the axis of the one drum. When looking at the groove on the other drum, the amount of displacement between the contact point and the detachment point of the wire rope coincides with the distance between the grooves formed on the one drum, and the one drum side. Both the detachment point of the wire rope and the contact point of the wire rope on the other drum side are aligned without a step on a line orthogonal to the axial direction of the one drum, and further on the other drum side. Both the detachment point of the wire rope and the contact point of the wire rope on the one side of the drum are also aligned on a line orthogonal to the axial direction of the one drum without a step. It is an endless winch.

The basic configuration of the endless winch according to the present invention is the same as that of the conventional one, and the outer peripheral surfaces of the two drums are arranged so as to be adjacent to each other, and the groove for winding the wire rope is provided on each drum. The flanges for holding the wire rope are projected on both sides of each groove. In addition, the grooves are in multiple rows to ensure sufficient friction between the drum and the wire rope. The wire rope does not wrap around the entire circumference of the drum, and when reciprocating between the opposing drums, the wire rope repeats wrapping only half a circumference and gradually moves in the axial direction of the drum.

The grooves formed in the drum are not spirally continuous, but are individually independent annulars, and inevitably flanges are formed on both sides of the groove to prevent the wire rope from detaching from the groove. There is. In order to rotate the drum, it is necessary to connect some kind of prime mover, but this prime mover may drive only one drum or both. Further, in the present invention, in order to distinguish between two drums, one of them is referred to as one drum and the remaining one is referred to as the other drum.

A typical endless winch has two drum axes aligned in parallel. However, in the present invention, the axes of one drum and the other drum are not parallel, but are intentionally provided with an angle of intersection. The direction in which this intersection is provided cannot be freely selected. Specifically, first, it is assumed that the axes of both one drum and the other drum are aligned in parallel, and in this state, a plane including both the axis of one drum and the axis of the other drum is assumed. On the other hand, the axis of the drum shall be angled along a plane orthogonal to this plane. Therefore, the distance between the one drum and the other drum is almost constant without being affected by this intersection angle.

The angle of intersection of the axes of both the drum and the other drum is determined by the following method. First, it is assumed that the axis of one drum extends horizontally, and the axis of the other drum is gradually tilted from the horizontal direction to the vertical direction. At this time, as the inclination of the other drum increases, the amount of displacement between the upper end and the lower end of the individual grooves (on the one hand in the axial direction of the drum) also increases, and the amount of displacement eventually increases between the grooves of the one drum. Matches the interval of. Then, the inclination of the axis of the other drum in this state becomes the above-mentioned "intersection angle". In reality, due to various factors, it is difficult to completely match the displacement between the upper end and lower end of the groove of the other drum with the distance between the grooves of the other drum, but make it as close as possible to the same. It shall be.

On the other hand, in the drum and the other drum, the contact point of the wire rope is the point where the drum and the wire rope start to come into contact with each other, and thereafter, the wire rope is wound by half a circumference of the drum. The detachment point is located on the opposite side of the contact point and is the point at which the drum and the wire rope begin to separate. When the axis of one drum or the other drum extends in the horizontal direction, the contact point or the detachment point is the upper end portion or the lower end portion of the drum. In addition, as a matter of course, when the moving direction of the wire rope is reversed, the contact point and the detachment point are also reversed.

The present invention is characterized in that the axis of the other drum is tilted and the upper end and the lower end of the groove of the other drum are displaced by one pitch (the distance between the grooves of the one drum). Further, the upper end and the lower end of the groove of one drum and the other drum inevitably become contact points and detachment points of the wire rope. As a result, if the detachment point of one drum and the contact point of the other drum are aligned in a straight line (with respect to the direction orthogonal to the axis of the one drum), the wire rope starts to come into contact with the other drum when it separates from the one drum. At that time, contact with the flange can be avoided, and the influence of friction between the two can be prevented.

The wire rope that has reached the contact point of the other drum is subsequently wound around the groove of the other drum, and reaches the detachment point after making a half turn with the other drum, but due to the inclination of the axis of the other drum, one pitch during that time. (On the other hand, the distance between the grooves of the drum) is displaced in the axial direction. As a result, even in the section from the detachment point of the other drum to the contact point of the one drum, both the detachment points and the contact points are aligned in a straight line without a step, and contact with the flange can be avoided here as well.

In reality, various factors such as the size of the cross section of the wire rope, the depth of the groove, and the height of the flange are intertwined, so it is difficult to align the disconnection point and contact point of the wire rope in a straight line without any steps. is there. However, by adjusting the angle of intersection as in the present invention, the step can be minimized, and the friction between the wire rope and the flange can be significantly reduced. When the moving direction of the wire rope is reversed, the contact point and the detachment point are also reversed, but both are still aligned without a step.

Thus, in the endless winch, the one drum and the other drum are arranged so that their axes are not parallel but at an intersecting angle, so that the wire rope starts to separate from the one drum or the other drum, and the wire rope is separated from the other drum. Both points of the drum or the contact point where it begins to contact the other drum can be arranged substantially in a straight line on the one drum side and the other drum side without a step. Therefore, it is possible to prevent the wire rope from violently contacting the flange in the vicinity of the detachment point and the contact point.

As in the invention of claim 1, in the endless winch, the one drum and the other drum are arranged so that their axes are not parallel but at an intersecting angle so that the wire rope starts to separate from the one drum or the other drum. Both points and contact points where the wire rope begins to contact one drum or the other drum can be aligned substantially in line on one drum side and the other drum side without steps. Therefore, it is possible to prevent the wire rope from violently contacting the flange in the vicinity of the detachment point and the contact point, prevent deterioration of the wire rope, and suppress wear of the flange. Although the present invention has been developed to solve a problem in a piggery, its use is flexible.

It is a perspective view which shows the structural example of the endless winch by this invention, and the use example of this endless winch, and the detail of one drum and the other drum is drawn in the upper part of the figure. Regarding the endless winch of FIG. 1, the positional relationship between one drum and the other drum is shown. A plan view is drawn at the upper part of the figure, and a right side view is drawn at the lower part of the figure. It shows a state in which a wire rope is wound around one drum and the other drum in FIG. 2, a plan view is drawn in the upper part of the figure, a right side view is drawn in the middle of the figure, and a lower part of the figure is drawn. The bottom view is drawn in. It is a perspective view which shows the concrete example such as the support structure of one drum and the other drum, and the arrangement of a prime mover. It is a perspective view explaining the outline of the prior art, and depicts a scraper that collects filth in a piggery and an endless winch that moves the scraper. FIG. 5 is a perspective view and a plan view showing the problem of the endless winch of FIG. 5, and the two drums facing each other are arranged so that the grooves formed on the outer peripheral surface thereof generate a step of half a pitch and face each other. The wire rope moving between the drums will have a predetermined inclination with respect to the direction orthogonal to the axis of the drum.

FIG. 1 shows a configuration example of the endless winch 11 according to the present invention and a usage example of the endless winch 11. In a large piggery, a scraper 45 driven by some kind of power source is often used in order to efficiently collect the discharged filth. Therefore, the breeding cage 51 has a stilt structure in which the slatted board 54 is arranged on the legs 53, and the outer edge of the slatted board 54 is surrounded by the guard 55. The scraper 45 is arranged directly under the cage 51, and the filth passes through the gap of the drainboard 54 and falls to the floor surface of the piggery, and the scraper 45 collects the scraper 45. The cages 51 are often arranged in two rows, and the scrapers 45 are also arranged at two locations accordingly, and wire ropes 41 are laid in an annular shape so as to connect the two. Further, in order to move the wire rope 41, an endless winch 11 is used, and the wire rope 41 is bent by a pulley 42.

The endless inch 11 has a structure in which one drum 22 and the other drum 32 are incorporated inside a frame 12 to which a steel plate or the like is joined. Both the one drum 22 and the other drum 32 are cylindrical, and the upper part of the drawing shows the endless inch 11. The details are drawn. Both the drum 22 on the one hand and the drum 32 on the other hand have grooves 24 and 34 for winding the wire rope 41 formed on the outer peripheral surface thereof, and all of them are arranged in four rows in the figure. Further, flanges 23 and 33 for holding the wire rope 41 are formed between the adjacent grooves 24 and 34. In addition, shafts 27 and 37 penetrate through the centers of the one drum 22 and the other drum 32, and both ends thereof are rotatably supported by the frame 12.

A wire rope 41 is wound around the drum 22 on the one hand and the drum 32 on the other. Sufficient friction is ensured by repeatedly reciprocating between the one drum 22 and the other drum 32, and the wire rope 41 prevents slipping on the one drum 22 and the other drum 32. In order for the endless winch 11 to function properly, it is necessary to apply an appropriate tension to the wire rope 41. Further, in order to drive the drum 22 on one side and the drum 32 on the other side, a prime mover 15 such as a motor is connected to them.

The axes of both the drum 22 and the drum 32 are arranged so as to have an angle of intersection rather than parallel. However, on the other hand, the axis of the drum 22 extends in the horizontal direction and is orthogonal to the wire rope 41 entering and exiting the endless winch 11. Further, when the endless winch 11 is viewed from directly above, the axis of the other drum 32 is aligned parallel to the axis of the one drum 22, but when viewed from the side end face direction in which the wire rope 41 enters and exits, the other drum 32 The axis is tilted in the vertical direction. As a result, the individual grooves 34 of the drum 32 are arranged not vertically but at an angle, and the amount of displacement between the upper end and the lower end of the groove 34 (the amount of displacement of the drum 22 with respect to the axial direction) is large. On the other hand, the distance between the grooves 24 of the drum 22 is matched. Moreover, both the upper end portion and the lower end portion of the groove 34 of the other drum 32 are adjusted so as not to form a step with the groove 24 of the one drum 22.

In the endless winch 11, when the wire rope 41 is moved in the direction of advancing the scraper 45, the drum 22 starts to come into contact with the wire rope 41 at the upper end of the groove 24, and thereafter, the wire rope 41 is only half a circumference. It wraps around the drum 22 and eventually the wire rope 41 separates at the lower end of the drum 22. On the other hand, in the drum 22, the point at which the wire rope 41 starts to come into contact is referred to as a contact point 25, and the point at which the wound wire rope 41 begins to separate is referred to as a detachment point 26. Of course, the other drum 32 also has a contact point 35 and a detachment point 36, but the upper and lower parts are inevitably interchanged, the lower end portion becomes the contact point 35, and the upper end portion becomes the detachment point 36.

On the other hand, the wire rope 41 that has passed through the detachment point 36 after being wound around the drum 32 eventually reaches the contact point 25 of the one drum 22. On the other hand, due to the inclination of the drum 32, the separation point 36 and the contact point 25 are aligned without a step with respect to the orthogonal direction of the axis of the drum 22. As a result, the wire rope 41 does not violently come into contact with the flanges 23 and 33 in the vicinity of the detachment point 36 and the contact point 25. On the contrary, with respect to the wire rope 41 from the one drum 22 to the other drum 32, the detachment point 26 and the contact point 35 are arranged without a step with respect to the orthogonal direction of the axis of the one drum 22. When the moving direction of the wire rope 41 is reversed, the detachment points 26 and 36 and the contact points 25 and 35 are inevitably reversed, but both of them are still aligned in a straight line without a step.

FIG. 2 shows the positional relationship between the drum 22 on one side and the drum 32 on the other side of the endless winch 11 in FIG. 1. A plan view is drawn at the upper part of the drawing, and a right side view is drawn at the lower part of the drawing. There is. As shown in FIG. 1, the axis of one drum 22 extends in the horizontal direction, while the other drum 32 is tilted in the vertical direction as shown in the right side view of this figure. Therefore, the individual grooves 34 of the other drum 32 are also tilted, and inevitably the upper end and the lower end thereof are displaced in the horizontal direction, and the angle of intersection between the axes of the one drum 22 and the other drum 32 is adjusted. Therefore, this displacement amount is made to match the distance between the grooves 24 of the drum 22. In addition, by adjusting the arrangement of the one drum 22 and the other drum 32, the detachment point 26 of the one drum 22 and the contact point 35 of the other drum 32 are arranged on the same line without a step, and similarly, the other drum 32. The detachment point 36 and the contact point 25 of the drum 22 are also arranged on the same line without any step.

As shown in the plan view of FIG. 2, the upper ends of both the grooves 24 and 34 and the flanges 23 and 33 are arranged laterally without a step on one drum 22 side and the other drum 32 side. Further, in the right side view of the drawing, one drum 22 is drawn above and below the other drum 32. However, the one drum 22 in this figure is drawn as a reference, and in reality, the one drum 22 is arranged behind the other drum 32, and most of the one drum 22 is covered by the other drum 32. In addition, the contact points 25 and 35 and the detachment points 26 and 36 are located slightly away from the bottoms of the grooves 24 and 34. This is because the size of the cross section of the wire rope 41 is taken into consideration. When actually manufacturing the endless winch 11 according to the present invention, it is difficult to arrange the detachment points 26 and 36 and the contact points 25 and 35 completely without a step due to various factors. However, by eliminating the step as much as possible, contact with the flanges 23 and 33 can be suppressed.

FIG. 3 shows a state in which a wire rope 41 is wound around one drum 22 and the other drum 32 in FIG. 2, a plan view is drawn in the upper part of the figure, and a right side view is shown in the middle of the figure. It is drawn, and the bottom view is drawn at the bottom of the figure. Here, it is assumed that the wire rope 41 is pulled in from the left side of the drawing and discharged to the right side by rotating the one drum 22 and the other drum 32, and the wire rope 41 drawn in the plan view is the one drum. It contacts the upper end of 22 and the other drum 32, and moves from the right side to the left side in the figure. On the other hand, in the bottom view, it moves from the left side to the right side of the figure. In both the plan view and the bottom view, the grooves 24 and 34 of both the drum 22 and the drum 32 are aligned in a straight line without a step, so that the wire rope 41 does not bend in the middle and is oriented in the lateral direction of the drawing. It's growing straight.

On the other hand, the wire rope 41 wound around the drum 32 moves in an oblique direction instead of vertically as shown in the right side view, and while the other drum 32 is half-circulated, the distance between the grooves 24 of the drum 22 is the same. Move laterally. Therefore, the wire rope 41 separated from the other drum 32 reaches the one drum 22 without bending in the middle. Due to the structure of the endless winch 11, the wire rope 41 drawn from the outside passes through the groove 24 at the end of one drum 22 without wrapping it in the initial stage, and then wraps around the other drum 32. Further, the wire rope 41 that reciprocates between the one drum 22 and the other drum 32 many times passes through the groove 34 at the end of the other drum 32 without being wound, and is discharged to the outside. In this way, the points that simply pass through the grooves 24 and 34 also correspond to the detachment points 26 and the contact points 35.

FIG. 4 shows specific examples such as the support structure of the one drum 22 and the other drum 32, and the arrangement of the prime mover 15. The shafts 27 and 37 penetrate through the center of the drum 22 and the drum 32, and both ends thereof are supported by the frame 12. On the other hand, with respect to the drum 22, it is sufficient that the shaft 27 can be simply arranged in the horizontal direction, and both ends of the shaft 27 are supported by a simple bearing 28. On the other hand, the drum 32 needs to be tilted in the horizontal direction, and both ends of the shaft 37 are supported by alignment bearings 38 having an automatic alignment function. Moreover, the centering bearing 38 is attached to the L-shaped bracket 39 without being fixed to the frame 12 so that the inclination of the shaft 37 can be adjusted. The bracket 39 is movable along the side surface of the frame 12, and a bolt 17 is connected to the upper end portion thereof. The bolt 17 is arranged slightly away from the side surface of the frame 12, and the bracket 39 can be moved in the vertical direction by rotating its head, and fine adjustment of the inclination of the shaft 37 is realized.

The prime mover 15 is a motor having a speed reducer, which is mounted on the upper part of the frame 12, and its rotation is transmitted to the drum 22 via the chain 18. Therefore, on the other hand, a sprocket 29 is attached to the end of the shaft 27 of the drum 22, and the sprocket 19 is also attached to the end of the prime mover 15. By arranging the sprockets 19, 29 and the chain 18 on the outside of the frame 12 in this way, maintenance and inspection after installation becomes easy.

11 Endless winch 12 Frame 15 Motor 17 Bolt 18 Chain 19 Sprocket 22 One Drum 23 Flange 24 Groove 25 Contact point 26 Departure point 27 Shaft 28 Bearing 29 Sprocket 32 On the other hand Drum 33 Flange 34 Groove 35 Contact point 36 Departure point 37 Shaft 38 Alignment Bearing 39 Bracket 41 Wire rope 42 Pulley 45 Scraper 51 Cage 53 Leg 54 Sprocket 55 Guard

Claims (1)

Each has a cylindrical one drum (22) and the other drum (32), and one or both of them can be connected to a prime mover (15) for rotation.
The one drum (22) and the other drum (32) are arranged so that their outer peripheral surfaces are adjacent to each other, and a wire rope (41) is wound around each outer peripheral surface, so that a plurality of rows of grooves are formed. Endless winches forming (24, 34)
The one drum (22) and the other drum (32) are arranged so that their axes are not parallel but have an angle of intersection.
When the groove (34) of the other drum (32) is viewed from the one drum (22) side with reference to the direction orthogonal to the axis of the one drum (22), the wire rope (41) The amount of displacement between the contact point (35) and the detachment point (36) is the same as the distance between the grooves (24) formed in the drum (22).
Both the detachment point (26) of the wire rope (41) on the one drum (22) side and the contact point (35) of the wire rope (41) on the other drum (32) side are one of the two points. They are lined up on a line orthogonal to the axial direction of the drum (22) without any steps.
Further, both the separation point (36) of the wire rope (41) on the other drum (32) side and the contact point (25) of the wire rope (41) on the one drum (22) side are also On the other hand, the endless winch is characterized in that it is lined up without a step on a line orthogonal to the axial direction of the drum (22).

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