JP3203908U - Wire rope winder - Google Patents

Abstract

To provide a wire rope winding device capable of visually recognizing a difference between a wire rope feeding amount from a feeding side drum and a wire rope winding amount to a winding side drum. A power-driven winder 3 for winding a wire rope 40 fed from a winch drum 4a onto a temporary winding drum 31, and two fixed sheaves 21 for guiding and supporting the wire rope fed from the winch drum, 22 and the wire rope 40a stretched between both fixed sheaves in a U shape, and the difference between the amount of wire rope paid out from the winch drum and the amount of wire rope taken up around the temporary winding drum The wire rope take-up device is configured with a moving sheave 23 whose position in the height direction changes, and by visually observing the state of the moving sheave 23 from the outside, the wire rope feed amount and the wire rope take-up amount are equal. I was able to recognize whether or not. [Selection] Figure 1

Description

  The present invention relates to a wire rope winding device for winding a wire rope wound around a winch drum of a crane onto a temporary winding drum.

  In a large crane vehicle, a swivel base, a boom, a hoisting cylinder, or the like may be removed from the vehicle and sent separately due to weight restriction regulations when traveling on a public road. A main winding winch and an auxiliary winding winch are mounted on the swivel base of the large crane vehicle, and wire ropes of a predetermined length are wound around the drums of the winches.

  By the way, in a large crane vehicle, there exists a heavy weight thing about 30-40 tons of the weight of a turntable part. In addition, a wire rope having a weight of about 2.5 tons is wound on each winch drum mounted on such a heavy-weight swivel. The total weight of the two ropes is about 5 tons.

  And if such a heavy weight (for example, about 30 to 40 tons) swivel base is separated from the vehicle and sent separately by the transport vehicle, the total weight of the transport platform loading transport vehicle exceeds the weight limit value of the public road. There is.

  Therefore, if the weight of the swivel carriage as described above exceeds the weight limit value on the public road, the two wire ropes wound around the winches mounted on the swivel are wound around the temporary winding drum. Instead, by transporting both wire ropes separately from the swivel base, the weight of the swivel base part can be reduced, thereby reducing the weight of the swivel base loading transport vehicle to an allowable weight value or less required for public road travel. The provisional winding drum is set so as to be slidable on a power-driven winding machine, and is rotated in both the winding and feeding directions by power (motor) in the set state.

  By the way, when winding the wire rope wound around the winch drum of the crane onto the temporary winding drum, the amount of wire rope paid out from the winch drum (feeding speed) per hour and the time taken up on the temporary winding drum It is necessary to wind the wire rope with a predetermined tension on the temporary winding drum while synchronizing the wire rope winding amount (winding speed). That is, when winding the wire rope to the temporary winding drum side, if the wire rope feed amount from the winch drum is larger than the wire rope winding amount by the temporary winding drum, the wire rope becomes temporary due to the slack of the wire rope. If the wire rope feed amount from the winch drum is less than the wire rope take-up amount by the temporary winding drum, the wire rope is excessively tensioned and the wire rope is temporarily wound by the winding drum. (The upper wire rope is strongly bitten between the lower wire ropes, making it difficult to unwind). In addition, even if the wire rope feed amount and the wire rope take-up amount are equal, if the wire rope wound around the temporary winding drum is insufficiently tensioned, the wire rope will be wound around the temporary winding drum. It may be done.

  Conventionally, when winding a wire rope around a drum, as a device for applying a tension so that the wire rope is not in a turbulent winding state, Japanese Patent Laid-Open No. 8-40693 (Patent Document 1) and There are some which were indicated by 9-255287 (patent documents 2).

  The apparatus disclosed in each of the above known examples is used when winding a wire rope from a temporary winding drum to a winch drum of a crane, and is a technique in which the winding direction of the wire rope is opposite to that of the present application. And each of these known examples is strong against the wire rope wound around the winch drum by winding the wire rope around the winch drum and the temporary winding drum a plurality of times, with the wire rope wound around the drum. By interposing a tension applying device that applies tension (retraction resistance force) and applying a large tension to the wire rope wound around the winch drum, a large tension of the suspended load acts on the wire rope during crane work. Even so, the upper wire rope is neatly wound up so that the upper wire rope does not bite between the lower wire ropes.

Japanese Patent Laid-Open No. 8-40693 JP-A-9-255287

  However, the wire rope tension load device (control drum) disclosed in the above known examples (Patent Document 1 and Patent Document 2) adjusts (strengthens) the tension of the wire rope wound around the winch drum with a braking device. However, it is impossible to confirm the change in the tension of the wire rope that changes with the change in the winding amount (winding speed) of the winch drum. If the change in the tension of the wire rope wound around the winch drum cannot be confirmed, the wire rope wound around the winch drum may be wound up randomly (if the tension is abnormally weak) or bite into the lower wire rope (tension) May be unusually strong).

  Moreover, the wire rope tension load device of the above known examples (Patent Document 1 and Patent Document 2) is applied when winding the wire rope from the temporary winding drum to the winch drum, and the wire rope performed in the present invention is used. It does not wind from a winch drum to a temporary drum.

  Therefore, the present invention is that the winding direction of the wire rope is reversed (the winch drum is the winch drum and the winding side is the temporary winding drum), and the wire rope feed amount from the winch drum that is the feed side The object of the present invention is to provide a wire rope winding device that can visually recognize the difference between the amount of wire rope wound on a temporary winding drum on the winding side from the outside.

  The present invention has the following configuration as means for solving the above problems. The present invention is directed to a wire rope winding device for winding a wire rope wound around a winch drum of a crane around a temporary winding drum.

  By the way, as explained in the section of “Background Art” above, it is necessary to remove the boom and swivel from the vehicle due to the weight restrictions when traveling on public roads. In order to further reduce the weight of the swivel base, a wire rope wound around a winch drum on the swivel base is wound around a temporary winding drum. And the wire rope winding apparatus of this invention is used when winding a wire rope from the winch drum side to the temporary winding drum side.

  The wire rope winding device of the present invention includes a power drive type winding machine that winds the wire rope fed from the winch drum onto the temporary winding drum, and front and rear 2 for guiding and supporting the wire rope fed from the winch drum. Two fixed sheaves and a wire rope stretched between the two fixed sheaves in a U shape, and the amount of wire rope fed from the winch drum and the winding of the wire rope wound around the temporary winding drum It is composed of a moving sheave whose position in the height direction changes with the difference in the amount to be taken.

  The moving sheave is supported in a suspended state by hanging a wire rope stretched between the two front and rear fixed sheaves in a U-shape, and the moving sheave is moderately attached to the wire rope in the suspended state. It has a weight (for example, a weight of about 150 kg) that can generate tension (tension that can wind the wire rope around the temporary winding drum in an orderly manner). The range in which the movable sheave can be moved up and down in a suspended state (normal state) is not particularly limited, but it is preferable to secure, for example, about 1 to 1.5 meters.

  The wire rope winding device of the present invention is used by being installed on the ground in front of the tip of the boom in a crane vehicle in which a swivel base and a boom are mounted on a vehicle. The tip of the wire rope wound around is suspended downward through the sheave at the tip of the boom, and the tip of the wire rope is connected to the upper surface of one (front) fixed sheave and the lower surface of the moving sheave. If the wire rope tip is set (fixed) on the temporary winding drum after being sequentially wound around the upper surface side of the other (rear) fixed sheave, the preparation for winding the wire rope is completed.

  In this state, the winch drum is synchronously driven to feed out the wire rope, while the temporary winding drum is driven to wind up the wire rope. The operation mode and function of this wire rope winding device will be described later in an embodiment. explain in detail.

  According to the wire rope winding device of the present invention, during the operation of winding the wire rope around the temporary winding drum, whether or not the moving sheave is maintained in a suspended state between the front and rear fixed sheaves is visually observed from the outside. The wire rope can be fed from the winch drum by visually observing from the outside whether or not the moving sheave is moving up and down. It is possible to recognize whether the amount and the amount of wire rope wound around the temporary winding drum are equal.

  Therefore, the difference between the wire rope feed amount and the wire rope take-up amount is reliably recognized with a simple configuration (a configuration in which the moving sheave is supported in a suspended state between the fixed sheaves) (the moving sheave state). There is an effect that it can be visually observed).

  In addition, when it is recognized that there is a difference between the wire rope feed amount and the wire rope take-up amount visually on the moving sheave, for example, by adjusting the winding speed of the temporary winding drum, the wire rope feed amount and the wire Since the amount of rope winding can be made uniform (almost equal), it is possible to easily return to normal operation.

It is explanatory drawing of the large-sized crane vehicle containing which shows the usage pattern of the wire rope winding apparatus of an Example of this application. It is an enlarged plan view of the wire rope winding device part in FIG. It is a partial enlarged view in the wire rope winding apparatus of FIG. It is explanatory drawing in the case of winding the wire rope wound up by the temporary winding drum to the winch drum side.

  Hereinafter, the wire rope winding device of the embodiment of the present application will be described with reference to FIGS. 1 to 3. The wire rope winding device of this embodiment is a winch (auxiliary winding winch) of a large crane vehicle as shown in FIG. 1. 4 and the main winding winch 5) are used when winding each wire rope 40 (or 50) around the temporary winding drum 31 of the winder 3 installed on the ground.

  The large crane vehicle shown in FIG. 1 has a swivel base 11 installed on a vehicle 10, and a boom 12 that can be extended and retracted. The boom 12 is raised and lowered by a raising and lowering cylinder 13.

  By the way, in the case of a large crane vehicle, as described in the above “Background Technology” and “Problems to be Solved by the Invention”, the boom 12 and the swivel base 11 are removed from the vehicle 10 by the restriction of the weight limit when traveling on a public road. In order to further reduce the weight of the swivel base 11 that needs to be removed and sent separately, the wire wound around the winch (the auxiliary winch 4 and the main winch 5) on the swivel base 11 is further reduced. The ropes (the auxiliary winding wire rope 40 and the main winding wire rope 50) are each wound around the temporary winding drum 31 of the winder 3. And the wire rope winding device of this application is used when winding a wire rope (40 or 50) from the winch (4 or 5) side to the temporary winding drum 31 side. In this embodiment, the case where the wire rope 40 wound around the drum 4a of the auxiliary winding winch 4 is wound around the temporary winding drum 31 is mainly described. However, in the following description, the auxiliary winding winch is simply referred to as the auxiliary winding winch. The winch drum is sometimes called a winch drum 4a.

  The wire rope winding device according to the embodiment of the present invention includes a power-driven winding machine 3 that winds a wire rope 40 fed from a winch drum 4a around a temporary winding drum 31, and two front and rear fixed sheaves 21 and 22, which will be described later. And a winding auxiliary machine 2 having a moving sheave 23.

  As shown in FIGS. 1 and 2, the winder 3 performs various operations with a temporary winding drum 31 and a motor 32 with a speed reducer 33 that rotationally drives the temporary winding drum 31 on a base 30. A control box 34 is mounted. The control box 34 is provided with various operation buttons capable of switching the motor rotation direction and adjusting the motor rotation amount.

  As shown in FIGS. 1 to 3, the winding auxiliary machine 2 is provided at a base 20 having a predetermined height (for example, a height of 2 meters or more), and at two positions on the front and rear of the upper part of the base 20. There are two fixed sheaves 21 and 22 and a moving sheave 23 supported in a suspended state by hanging a wire rope 40a stretched between the fixed sheaves 21 and 22 in a U shape.

  At the four corners of the base 20, support columns 20a, 20a,. As shown in an enlarged view in FIG. 3, the height position of the moving sheave 23 is at an allowable position or at an abnormal position on the outward side surface of one of the columns 20a (two in the front-rear direction in the illustrated example). A vertically long discriminating section 27 is provided as an index for discriminating such a situation. The discriminating unit 27 includes an allowable range portion (for example, a yellow tape attached) 27a displayed in the lower long range and an abnormal range portion (the same red tape applied) displayed in the upper short range. 27b.

  The two front and rear fixed sheaves 21 and 22 are mounted in two positions at a predetermined interval in the front-rear direction (wire rope tensioning direction) in the upper part of the base 20 so that the wire rope 40 can be hung around in the front-rear direction. It has been.

  The moving sheave 23 is obtained by providing a sheave 25 on top of a weight member 24 having a predetermined weight. The total weight of the moving sheave 23 is a wire wound around the temporary winding drum 31 in a state where the moving sheave 23 is suspended by a wire rope 40a stretched between two front and rear fixed sheaves 21 and 22. The rope 40 has a weight (for example, a weight of about 150 kg) capable of generating a tension capable of orderly winding the rope 40 around the temporary winding drum 31.

  On the side surface of the lower part of the weight member 24, as shown in an enlarged view in FIG. 3, a reference portion (for example, a yellow tape attached) 26 is displayed on the same surface as the discriminating portion 27 on the base 20 side. . Then, by visually observing which height position of the discriminating section 27 (allowable area section 27a, abnormal area section 27b) the reference section 26 corresponds to whether the wire rope winding state is normal or abnormal Can be confirmed. That is, the range in which the movable sheave 23 can be moved up and down in a normal state is the sheave when the lower end of the weight member 24 is at a height position close to the ground (shown by the solid line in FIG. 3) as shown by the solid line in FIG. A height range H from a height position P1 of 25 to a height position P2 where the sheave of the moving sheave 23 is substantially the same height as the fixed sheaves 21 and 22 indicated by reference numeral 25 '. When the moving sheave 23 is at the lower end position P1 of the permissible range (H height range), the reference position 26 of the weight member 24 is set to the height of P1 ′. When the movable sheave 23 is at the upper end position P2 of the allowable range (H height range), the reference portion 26 'of the weight member is at the height of P2'. It is set to be located near the upper end of the permissible area 27a. In addition, it is preferable to ensure the range (the height range H) in which the movable sheave 23 can be moved up and down in a suspended state (normal state), for example, about 1 to 1.5 meters.

  On the other hand, the abnormal area 27b of the determination section 27 is provided at a position slightly spaced upward from the upper end of the allowable area 27a. When the sheave of the moving sheave 23 moves up to an abnormal height indicated by reference numeral 25 ″ (a height at which there is a risk of damaging the retaining pins 21a, 22a, or a height at which the wire rope 40 is detached from the fixed sheave), When the reference portion of the weight member 24 becomes a height position P3 ′ indicated by reference numeral 26 ″, the reference portion 26 ″ moves up to a position corresponding to the abnormal region portion 27b. It can be recognized that the moving sheave 23 is moving up to the abnormal position.

  By the way, the temporary winding drum 31 of the winder 3 has a winding drum 31a having a considerable length in the left-right direction (drum axial direction) as shown in FIG. The wire rope wound around the temporary winding drum 31 must be neatly wound while being neatly distributed sequentially in the left-right direction (drum axial direction) of the winding drum 31a. Corresponding to the winding position of the rope, the fixed sheave 22 on the rear side of the winding auxiliary machine 2 can be moved in the left-right direction (arrow R and L directions) in a plan view (state in FIG. 2) with respect to the base 20. I am doing so.

  By the way, in the wire rope winding device of the embodiment shown in FIG. 1 to FIG. 3, the fixed sheaves 21 and 22 and the moving sheave 23 that are specified in the scope of the utility model registration request are connected to the base of the winding auxiliary machine 2. The base 30 of the winder 3 is enlarged in the front-rear direction and moved with the front and rear fixed sheaves 21, 22. The sheave 23 may be attached to the base 30 of the winder 3.

  As shown in FIG. 1, the wire rope take-up device of this embodiment is a take-up auxiliary machine on the ground in front of a boom tip 12a in a crane vehicle in which a swivel 11 and a boom 12 are mounted on a vehicle 10. 2 and the winder 3 are used. At this time, as shown in FIG. 2, fixed sheaves 21 and 22 before and after the winder auxiliary machine 2 with respect to the sheaves 14 and 15 of the boom tip 12a. And the temporary winding drum 31 of the winder 3 are arranged so as to be located on the same straight line in a plan view.

  And the front end side of the wire rope 40 which is going to rewind from the winch drum 4a of a crane vehicle is hung down through the sheaves 14 and 15 of the boom front end portion 12a, and the front end side of the wire rope is taken up by the winding auxiliary machine 2 The front side of the front fixed sheave 21, the lower side of the sheave 25 of the moving sheave 23, and the upper side of the rear fixed sheave 22 are sequentially wound around, and then the wire rope tip is set (fixed) on the temporary winding drum 31. ) To complete the preparation for winding the wire rope.

  In this state, when the wire rope feeding drive of the winch drum 4a and the wire rope winding drive of the temporary winding drum 31 are performed synchronously, the wire rope 40 fed from the winch drum 4a is sequentially wound on the temporary winding drum 31. However, at this time, if the moving sheave 23 is supported in a suspended manner between the two fixed sheaves 21, 22, the proper tension for winding the wire rope 40 around the temporary winding drum 31 by the weight of the moving sheave 23 is obtained. Can be maintained. Therefore, the wire rope 40 wound around the temporary winding drum 31 is wound in a clean state without any turbulent winding or bite. At this time, the wire rope needs to be taken up neatly while being displaced in the right and left direction (drum axis direction) by the wire rope thickness with respect to the winding drum 31a of the temporary winding drum 31. Corresponding to the winding position of the rope, the rear fixed sheave 22 is moved left and right (moved to the arrow R side and L side).

  On the other hand, if there is a difference between the wire rope feed amount from the winch drum 4 a and the wire rope take-up amount to the temporary winding drum 31, the wire rope 40 stretched between the winch drum 4 a and the temporary winding drum 31. The tension (tensile / relaxed state) changes, but the change in the tension of the wire rope is absorbed by the change in the height position of the moving sheave 23 supported in a suspended state between the two fixed sheaves 21 and 22. Therefore, the tension of the wire rope is maintained at the tension due to the weight of the moving sheave 23. At this time, if the height position of the moving sheave 23 fluctuates upward, it means that the wire rope feed amount is smaller than the wire rope winding amount. Conversely, if the height position of the moving sheave 23 fluctuates downward, the wire It means that the rope feed amount is larger than the wire rope take-up amount.

  By the way, if the moving sheave 23 swings down (grounds) from the upper and lower permissible range (height range H in FIG. 3), the tension of the wire rope 40 becomes weak, so the wire rope 40 wound around the temporary winding drum 31. When the moving sheave 23 swings up from the upper and lower permissible range, the inclination angle of the wire rope 40 that hangs around the fixed sheaves 21 and 22 changes, and the fixed sheaves 21 and 22 are provided. Troubles that the retaining pins 21a and 22a are damaged or the wire rope 40 may come off the fixed sheave occur.

  Therefore, when the wire rope winding device of this embodiment is used, the wire rope is unwound when the observer M visually confirms the height position (and movement) of the moving sheave 23 during the wire rope winding operation. The difference between the amount and the wire rope winding amount can be recognized. If the moving sheave 23 is moving upward or downward, the supervisor M moves by adjusting the winding speed of the temporary winding drum 31 with the control box 34 (speed adjustment button) of the winder 3. The height position of the sheave 23 can be maintained within the normal height range H. Note that the movement sheave 23 being maintained within the normal height range means that the wire rope feed amount and the wire rope take-up amount are substantially equal. The rope 40 is wound up in an orderly manner.

  As described above, when the wire rope winding device of this embodiment is used, the moving sheave 23 is maintained in a suspended state between the front and rear fixed sheaves 21 and 22 while the wire rope 40 is wound around the temporary winding drum 31. The wire rope 40 maintains an appropriate tension by the monitoring person M visually checking whether the weight member 24 is within the allowable range 27a on the base 20 side (whether the reference portion 26 of the weight member 24 is within the allowable range 27a). Can be recognized whether or not the moving sheave 23 is moving up and down, and the observer M visually checks whether or not the wire rope feed amount from the winch drum 4a and the wire to the temporary winding drum 31 are visible. It can be recognized whether the amount of rope winding is equal.

  When the wire sheave 23 is visually recognized as having a difference between the wire rope feeding amount and the wire rope winding amount, the winding speed of the temporary winding drum 31 is adjusted with the adjustment button of the control box 34. As a result, the wire rope feed amount and the wire rope take-up amount can be made substantially uniform, so that normal operation can be easily restored.

  Therefore, when the wire rope winding device of the embodiment of the present application is used, the difference between the wire rope feeding amount and the wire rope winding amount can be reliably recognized with a simple configuration.

  In order to adjust the difference between the wire rope feed amount and the wire rope take-up amount, in the above embodiment, the winding speed of the temporary winding drum 31 is adjusted on the winder 3 side. In another use example, the feeding speed of the winch drum 4a may be adjusted on the crane vehicle side (crane operating room).

  Then, as described above, after the wire rope 40 wound around the winch drum 4a of one (auxiliary winch 4) is wound around the temporary winding drum 31, it is wound around the winch drum 5a of the other (main winch 5). The rotating wire rope 50 is wound around another temporary winding drum. In that case, the wound temporary winding drum 31 is removed from the base 30 of the winder 3, and an empty temporary winding drum is set there. Then, the other wire rope 50 may be wound around the temporary winding drum in the same manner as described above.

  When the wire ropes 40 and 50 are wound around the temporary winding drums 31 in this way, the weight of the swivel base is reduced by the total weight of the wire ropes 40 and 50 (about 5 tons), and the swivel base 11 is transported. The total weight of the swivel carriage can be reduced when transported separately by car.

  FIG. 4 shows a working state when the wire rope 40 wound around the temporary winding drum 31 on the winder 3 side is rewound onto the winch drum 4a on the crane vehicle side. In the wire rope unwinding operation to the winch drum 4a side shown in FIG. 4, the wire rope to be unwound on the winch drum 4a between the boom tip 12a and the winder (in this case, the unwinder) 3 A tension loader 6 for applying a predetermined tension (a tension for orderly unwinding) to 40 is interposed.

  In this case, in a state where the wire rope 40 to be wound is wound around the drum of the tension loader 6, the temporary winding drum 31 on the feeding side and the winch drum 4a on the winding side are driven synchronously. Then, the wire rope 40 is wound around the winch drum 4a while applying a predetermined tension to the wound wire rope 40 by the tension loader 6, whereby the wire rope is wound around the winch drum 4a in an orderly manner (with no turbulent winding or bite). Can be taken.

  1 is a crane, 2 is a winding auxiliary machine, 3 is a winding machine, 4 and 5 are winches, 4a and 4b are winch drums, 6 is a tension loader, 10 is a vehicle, 11 is a swivel, 12 is a boom, 20 Is a base of a winding auxiliary machine, 21 is a front fixed sheave, 22 is a rear fixed sheave, 23 is a moving sheave, 24 is a weight member, 25 is a sheave, 30 is a base of the winder, 31 is a temporary winding drum , 32 is a motor, 34 is a control box, and 40 and 50 are wire ropes.

Claims (1)

A wire rope winding device for winding a wire rope wound around a winch drum of a crane onto a temporary winding drum,
A power-driven winder that winds the wire rope fed from the winch drum around the temporary winding drum, two front and rear fixed sheaves that guide and support the wire rope fed from the winch drum, and between the two fixed sheaves The position in the height direction is determined by the difference between the amount of wire rope fed out from the winch drum and the amount of wire rope wound up on the temporary winding drum by winding the wire rope stretched on the U-shape in a U-shape. Consists of moving sheaves that change,
A wire rope take-up device.

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