RU200856U1 - Portable winch - Google Patents

Abstract

The utility model relates to lifting equipment and concerns compact winches, mainly with a manual drive, used for lowering and lifting various loads of relatively light weight, mainly anchors of small water vehicles. A portable winch assembled on a drive shaft fixed at the base with a propeller located at its end, and in the middle part with a reel equipped with an overrunning clutch, as well as a system for connecting the drive shaft to the propeller, including a friction washer. In this case, the coil is fixed loosely on the drive shaft, at the end of which there is a thread with a screwed propeller and which is provided with a shoulder located inside the cavity made in the coil. Moreover, the friction washer is located at the bottom of the said cavity in front of the said shoulder, behind which there is a thrust bearing and an overrunning clutch fixed on the said base, behind which another thrust bearing pressed against the base is located, located at the other end of the drive shaft. The claimed utility model is aimed at simplifying the design of a portable winch, as well as its manufacturing and assembly technology. 5 p.p. f-crystals, 24 ill.

Description

The utility model relates to lifting equipment and concerns compact winches, mainly with a manual drive, used for lowering and lifting various loads of relatively light weight, mainly anchors of small water vehicles.

Known since the 60s of the XX century, a patented portable anchor winch of a simple classical scheme [1, Patent US 2927772, IPC B66D 1/04, priority 03.06.1957, published 08.03.1960], containing in its body a propeller, for example, a handle connected to drive shaft, on which the drum and ratchet mechanism are fixed.

However, the disadvantage of such a winch is its low durability due to the rapid wear of the ratchet parts during intensive operation of the winch.

Known, taken as a prototype of a utility model, a more reliable modern portable winch "Stocker" [2, Patent RU 193467 U1, IPC 1/16, 1/60, priority 09.07.2019, published 30.10.2019], containing in its body a propeller located on the drive shaft, on which the reel of the drum is rigidly fixed through the key, equipped with an overrunning clutch built into the roller, which has a screw thread made along its outer surface in the form of a groove, ending at the end with a stop.

There is also a mechanism for connecting the drive shaft with the propeller, made in the form of a spline sleeve located on the drive shaft and a friction washer spring-loaded to it, as well as their fork pusher. The spline sleeve is made with the possibility of its displacement in the axial direction along the annular groove made on its outer surface, when the pin fixed on the roller moves in it.

However, the disadvantage of such a winch - the prototype [2] is the complexity of its design, as well as the technology of its manufacture and assembly, due to the presence of a relatively large number of parts that have complex structural elements with a curved configuration.

Therefore, the task of the utility model is to simplify the design of the portable winch, as well as the technology for its manufacture and assembly.

The problem is solved by the fact that (Fig. 1-7), in a portable winch assembled on a drive shaft (2) fixed at the base (1) with a propeller (3) located at its end, and in the middle part with a coil (4) equipped with an overrunning clutch (5), as well as a system for connecting the drive shaft (2) with the propeller (3), which includes a friction washer (6), there are distinctive features: the coil (4) is fixed loosely on the drive shaft (2), on the end of which is threaded (7) with a screwed propeller (3) and which is equipped with a shoulder (8) located inside the cavity (9) made in the spool (4), and the friction washer (6) is located at the bottom (10) of the said cavity ( 9) in front of the aforementioned shoulder (8), behind which there is a thrust bearing (11) and an overrunning clutch (5) fixed on said base (1), behind which another thrust bearing (12) pressed against the base (1) is located, located on the other end of the drive shaft (2).

Such distinctive features make it possible to use fewer parts with a simple configuration in the design of a portable winch than in a prototype winch [2], while maintaining the same functions of its use and advantages over an analogue winch [1], but using simpler and more efficient control methods, which will simplify the product according to the utility model, as well as simplify the technology of its manufacture and assembly.

Additional distinctive features of the utility model aimed at enhancing the mentioned effects:

another thrust bearing (12) is pressed against the base (1) through a nut (20) screwed onto the thread (21) of the other end of the drive shaft (2);

the overrunning clutch (5) is located in the bushing (18), the flange (19) of which is fixed on the base (1);

another friction washer (6) is also used, installed together with a support washer between the propeller (3) and the coil (4) through the drive shaft (2);

a handle is used as a mover (3);

the base (1), on which the portable winch is fixed, is connected to the roller (28), on which the anchor (29) is fixed, connected through the carabiner (31) with the end of the cable (26) wound on the reel (4) between two fastened to it discs (16).

The essence of the utility model is illustrated by illustrations, where in Fig. 1 shows a general view of a portable winch; in fig. 2 shows a section a-a of FIG. 1; in fig. 3-18 are steps for assembling a portable winch; in fig. 19 shows an example of the use of a portable winch in the anchor system of a small vessel; in fig. 20 - the moment of lowering the anchor using the portable winch of FIG. nineteen; in fig. 21 - the beginning of the immersion of the anchor in the water; in fig. 22 - end of immersion of the anchor in water; in fig. 23 - the beginning of the lifting of the anchor; in fig. 24 - the end of the lifting of the anchor.

A portable winch (Fig. 1, 2) is assembled (Fig. 2) on a drive shaft (2) fixed at the base (1), with a propeller (3) located at its end, and in the middle part with a reel (4) equipped with an overrunning clutch (5), as well as the system for connecting the drive shaft (2) with the propeller (3), which includes a friction washer (6).

The coil (4) is fixed loosely (with a small gap or along a sliding fit) on the drive shaft (2), at the end of which there is a thread (7) with a screwed propeller (3). The drive shaft (2) is provided with a shoulder (8) located inside the cavity (9) made in the coil (4).

The friction washer (6) is put on the drive shaft (2) and is located between the bottom (10) of the said cavity (9) of the coil (4) and the shoulder (8) of the drive shaft (2), behind which the thrust bearing (11) is located and fixed to the mentioned base (1) an overrunning clutch (5), behind which is located another thrust bearing (12) pressed against the base (1), fixed on the other end of the drive shaft (2).

Another similar friction washer (6) is also put on the drive shaft (2) and is located together with the support washer (13) between the coil (4) and the propeller (3), which can be used as complex units, for example , a rotary electric motor (not shown), and simple elements, for example, as shown, a handle, the threaded hole (14) of which is closed from above with a plug (15).

The coil (4) is equipped on both sides with discs (16) made with it, for example (as shown in Fig. 2), in the form of one piece or fastened to it (as shown in Fig. 13, 16-18) using self-tapping screws (17). The overrunning clutch (5) is located in the bushing (18), the flange (19) of which is fixed on the base (1), for example, also using (Fig. 2, 9-14) self-tapping screws (17).

Another thrust bearing (12, Fig. 2) is pressed against the base (1) through a nut (20) screwed onto the thread (21) of the other end of the drive shaft (2) inserted into the through hole (22) of the base (1).

The thrust bearings (11 and 12) are shown in FIG. 2 conditionally and consist, for example (Fig. 4), of the lower cage (23) and the upper cage (24), mounted on the drive shaft (2), between which a ball cage (25) is located.

The overrunning clutch (5) is also shown conditionally and its design, including a locking mechanism, is well known, for example, from the source [3, V.I. Anuryev. Handbook of the constructor-mechanical engineer. M., "Mechanical Engineering" - 2006. Volume 2, pp. 392-394].

A rope (26) is wound on the coil (4) between two discs (16) (Figs. 19-24) to form a coil, and the propeller (3), which is used, as shown, the handle, is equipped (Figs. 1, 19 -24) with the handle (27).

Such a product during its application can be connected (Fig. 19-24), for example, with its base (1) with a roller (28), on which an anchor (29) is located, connected through a bracket (30) fixed to it and a carbine (31 ) with the end of the rope (26). The base (1) is connected with its one end to the axis (32) of the stern (33), for example, of an inflatable boat, and through the strut (34) with a similar axis of its bottom (not shown).

Assemble the portable winch as follows (Fig. 3-18).

First, on the collar (8) of the drive shaft (2) from the side of its threaded end (21), a lower cage (23) with a ball cage (25) is fitted (Fig. 3), on which the upper cage (24 ), forming a thrust bearing (11) and on top of it is installed (Fig. 5) overrunning clutch (5) by its sleeve (18). Next, the assembled unit is turned over and the end of the drive shaft (2) with the thread (21) is inserted into the through hole (22) of the base (1), being centered there (Fig. 6) and fastened (Fig. 7) with self-tapping screws (17) through the sleeve flange ( 18) on the base (1), which is turned over (Fig. 8) so that the drive shaft (2) protrudes with its threaded end (21) outward, alternately pushing (Fig. 9-11) onto it the lower cage (23) , a ball cage (25) and an upper cage (24), forming (Fig. 11) a thrust bearing (12), which is pressed (Fig. 12) to the base (1) with a nut (20), screwed to the stop along the thread (21) end of the drive shaft (2).

Then the base (1) with such a fixed unit is placed (Fig. 14) next to the propeller (3), with the assembled drum from the coil (4) and disks (16), with friction washers (6) and with a support washer (13) ... Next, place (Fig. 2) one of the friction washers (6) on the shoulder (8) of the support shaft (2) and put on it the assembled drum from the coil (4) and disks (16), so that the mentioned friction washer (6 ) was pressed against the bottom (10) of the cavity (9) of the coil (4).

Then, from above, alternately, through a hole (not indicated) in the disposed disk (16), place another friction washer (6) and a support washer (13) on the spool (4), and screw the end of the drive shaft (2 ) the propeller (3), pressing it against the support washer (13), while squeezing both friction washers (6), and closing the threaded hole (14) with a plug (15).

Use a portable winch as follows (Fig. 1, 2, 15-19).

It is wound, forming a coil (Fig. 2), onto the reel (4), for example, a rope (26), and the handle (2) is fixed on the propeller (3) (Fig. 1).

Connect the base (1) of such a complete portable winch with a roller (28), on which the anchor (29) is located. Connect it through a bracket (30) fixed on it and a carbine (31) with the end of the rope (26). The base (1) is connected with its one end to the axis (32) of the stern (33), for example, of an inflatable boat, and through the strut (34) - with a similar axis of its bottom (not shown).

To lower the armature (29) by hand (Fig. 20) act on the handle (27) of the propeller (3) counterclockwise (in the direction of the dashed arrow shown).

First, a free stroke (Fig. 2) of its vertical movement is selected, and then the friction washers (6) are expanded. As a result, the drum with the coil will begin to unwind the rope (26) and under its weight the anchor (29) will begin to move downward (Fig. 21) with immersion in the water, where, having reached the bottom, it is fixed. In this case, a free dumping of the armature (29) can be provided with the possibility of smoothly changing the dumping speed by adjusting the pushing force of the propeller (3).

With such a discharge, only the spool of the mentioned drum with a bay turns.

After placing the inflatable boat "at anchor", to fix the said drum with the bay and prevent its spontaneous rotation, it is necessary to hold the bay with your hand (Fig. 22), turn the propeller (3) clockwise, thereby twisting it (Fig. 2) thread (7), i.e. “Counter”, pressing the friction washers (6) to the spool (4).

To un-anchor the inflatable boat, act (Fig. 23) on the handle (27) of the propeller (3) clockwise. As a result, the drum starts winding the rope (26) until the armature (29) is on the roller (28). In this case, the overrunning clutch locking mechanism (5) prevents the spontaneous lowering of the raised armature (29) when the handle is released.

The article in the anchor system shown in the photograph of FIG. 19, can operate with the weight of the armature (29) in the range from 0.2 kg to 9 kg due to the very light movement (Fig. 2) of the coil (4). In this case, the capacity of the said drum for forming a coil from a rope (26) with a diameter of 5 mm is 35 m of its length.

The use of a simplified portable winch according to the utility model will increase the reliability and improve the speed of the operations of anchoring and unmooring small-sized watercraft, while ensuring a smooth and quiet course of these processes.

Sources of information:

1. Patent US 2927772, IPC B66D 1/04, priority 03.06.1957, published 08.03.1960.

2. Patent RU 193467 U1, IPC 1/16, 1/60, priority 09.07.2019, published 30.10.2019 / prototype /.

3. V.I. Anuryev. Handbook of the constructor-mechanical engineer. M., "Mechanical Engineering" - 2006. Volume 2, pp. 392-394.

Claims (6)

1. Portable winch, assembled on a drive shaft (2) fixed at the base (1) with a propeller (3) located at its end, and in the middle part - a reel (4) equipped with an overrunning clutch (5), as well as a drive connection system shaft (2) with a propeller (3), including a friction washer (6), characterized in that the coil (4) is fixed loosely on the drive shaft (2), at the end of which there is a thread (7) with a screwed propeller (3) and which is provided with a collar (8) located inside the cavity (9) made in the coil (4), and the friction washer (6) is located at the bottom (10) of the said cavity (9) in front of the said collar (8), behind which the thrust a bearing (11) and an overrunning clutch (5) fixed on said base (1), behind which another thrust bearing (12) pressed against the base (1) is located, located at the other end of the drive shaft (2). 2. Winch according to claim 1, characterized in that the other thrust bearing (12) is pressed against the base (1) through a nut (20) screwed onto the thread (21) of the other end of the drive shaft (2). 3. Winch according to claim 1, characterized in that the overrunning clutch (5) is located in the bushing (18), the flange (19) of which is fixed on the base (1). 4. Winch according to claim 1, characterized in that another friction washer (6) is also used, installed together with a support washer between the propeller (3) and the coil (4) through the drive shaft (2). 5. Winch according to claim 1, characterized in that a handle is used as a propeller (3). 6. Winch according to claim 1, characterized in that the base (1), on which the portable winch is fixed, is connected to the roller (28), on which the anchor (29) is fixed, connected through a carabiner (31) to the end of the cable (26) wound on a spool (4) between two discs (16) attached to it.

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