WO2010133005A1

WO2010133005A1 - Rope guiding device

Info

Publication number: WO2010133005A1
Application number: PCT/CN2009/000536
Authority: WO
Inventors: 杨惠忠; 卿兆波; 包魏
Original assignee: 杭州天铭机电工具有限公司
Priority date: 2009-05-18
Filing date: 2009-05-18
Publication date: 2010-11-25

Abstract

A rope guiding device comprises a bed frame (1), a slide frame (2) movably arranged on the bed frame (1) along longitudinal direction of the bed frame (1), an upper guide roller (3) which is rotatably mounted on the slide frame (2) and a lower guide roller (4) which is rotatably mounted on the slide frame (2). The lower guide roller (4) provided below the upper guide roller (3) is maintained at a preset distance from the upper guide roller (3) in a vertical direction. Axial lines of the upper and lower guide rollers (3, 4) are in a same vertical plane. The slide frame can be moved along the bed frame, thus reducing the abrasion of the upper and lower guide rollers, and hence prolonging the service life of the cable.

Description

Rope guide

Technical field

The present invention relates to a rope guiding device, and more particularly to a rope guiding device for a winch. Background technique

The winch is equipped with equipment for trucks, off-road vehicles and SUVs. It is mainly used for car rescue, loading and unloading or lifting of goods. In order to guide the cable of the winch, a rope guide device is usually provided in front of the winch.

Figure 11 is a schematic view of a conventional guidewire device 100a. As shown in Fig. 11, the rope guiding device 100a includes a base 101a and upper and lower guide rollers 102a, 103a rotatably supported on the base 101a, respectively. In use, the rope guide device 100a is generally disposed in front of the winch, and the longitudinal direction of the rope guide device 100a (i.e., the axial direction of the upper guide roller 102a and the lower guide roller 103a) substantially coincides with the longitudinal direction of the winch of the winch, and the free end of the cable is A gap Ga between the upper guide roller 102a and the lower guide roller 103a is passed through for connection with the object to be towed.

The conventional rope guiding device has the following problems: First, when winding or unwinding the cable, the cable moves in the longitudinal direction of the spool (i.e., the axial direction of the spool), so that the cable is also opposed to the upper guide roller 102a and the lower guide roller 103a. Moving in the axial direction, so that the lengths of the upper guide roller 102a and the lower guide roller 103a must be adapted to the longitudinal movement distance of the cable (i.e., the axial length of the reel), thus causing the upper guide roller 102a and the lower guide roller 103a to be large in size and difficult to process. The cost is high; secondly, since the cable moves longitudinally with respect to the upper guide roller 102a and the lower guide roller 103a during winding and unwinding, a longitudinal direction occurs between the cable and the surfaces of the upper guide roller 102a and the lower guide roller 103a. The sliding friction causes the upper guide roller 102a and the lower guide roller 103a and the cable to be worn, shortening the service life of the cable and the upper guide roller 102a and the lower guide roller 103a; again, if the free end of the cable is not loaded, the cable ^^ Therefore, when the rope is collected, the cable cannot be wound up neatly and arranged on the reel, causing a rope disorder, which not only damages the cable, but also reduces the service life of the cable and even damages it. Car. Summary of the invention

The present invention aims to solve at least one of the above technical problems. Accordingly, it is an object of the present invention to provide a guide apparatus capable of reducing the length of the guide roller and the wear of the cable, extending the life of the cable, and having a low cost.

A rope guiding device according to the present invention comprises: a base frame; a carriage, the carriage being movable along a longitudinal direction of the base frame Positioning on the base frame; an upper guide roller rotatably mounted on the carriage; and a lower guide roller rotatably mounted on the base On the carriage, wherein the lower guide roller is located below the upper guide roller and spaced apart from the upper guide roller by a predetermined distance in a vertical direction.

According to the rope guide device of the present invention, since the upper guide roller and the lower guide roller are rotatable and are movable in the longitudinal direction with respect to the base frame together with the cable, the cable is connected between the upper guide roller and the lower guide roller No sliding friction occurs in the circumferential direction of the upper guide roller and the lower guide roller and in the longitudinal direction, the wear of the cable is reduced, the service life is increased, and the lengths of the upper guide roller and the lower guide roller can be shortened, thereby Reduced costs.

The rope guide device according to the invention also has the following additional technical features:

The axis of the upper guide roller is in the same vertical plane as the axis of the lower guide roller, and the axial directions of the upper guide roller and the lower guide roller are parallel to the longitudinal direction of the base frame.

Thus, the structure of the rope guiding device according to the present invention is more compact.

The lower guide roller and/or the upper guide roller are in the form of guide wheels, and a circumferential groove for accommodating the cable is formed on the outer peripheral surface of the guide wheel.

By accommodating the cable in the circumferential groove, it is possible to further ensure that no sliding friction occurs between the cable and the upper guide roller and the lower guide roller in the longitudinal direction and the carriage can be moved longitudinally relative to the base frame in synchronization with the cable.

The upper guide roller and the lower guide roller are supported in the carriage by first and second pin shafts, respectively.

The carriage moves on the base frame by balls.

The carriage moves on the pedestal by rolling, which further reduces the wear between them.

The top surface and the bottom surface of the carriage are respectively formed with accommodating EJ grooves, wherein the balls are accommodated in the accommodating grooves.

The rope guide device according to the present invention further includes a rope discharge roller rotatably mounted on the carriage and located on a lateral side of the carriage, and the rope roller is in tension position of the tension cable The release position of the release cable is movable between.

By providing the rope roller, the cable can be tensioned in an unloaded state where no load is applied at the free end of the cable, so that the cable is neatly wound onto the drum of the winch to avoid tangled rope.

The rope guide device according to the present invention further includes two webs swingably mounted to the longitudinal sides of the carriage, respectively, the rope rollers being mounted on the two webs for passing the pendulum of the two webs The movement revolves between the tensioned position and the released position.

The rope guide device according to the present invention further includes a positioning assembly disposed on a top surface of the carriage for holding the two connecting plates in a predetermined position.

By means of the positioning assembly, it is possible to prevent the connecting plate from rotating unintentionally, thereby ensuring that the rope roller is in the desired position.

The positioning assembly includes: an elastic member mounted in a longitudinal groove formed on a top surface of the carriage; and a positioning pin, the upper end of the positioning pin is connected to the elastic member and the lower end is respectively pushed Pressed on the outer peripheral surface of the corresponding connecting plate.

Through the elastic member, the holding force of the positioning assembly to the connecting plate can be adjusted.

A positioning groove for engaging with the positioning pin is formed on the outer peripheral surface of each of the connecting plates.

By providing the positioning groove, the reliability of the holding plate can be further increased.

According to the rope guiding device of the present invention, each of the connecting plates is fan-shaped and formed with a curved through hole; the two connecting plates and the lower guiding roller are mounted to the carriage by a second pin; a rope roller is mounted on the two connecting plates through a third pin; and the upper guiding roller is mounted on the carriage by a first pin, and the two ends of the first pin are respectively from the carriage The longitudinal sides extend to be movably fitted in the arcuate through holes of the two connecting plates, respectively.

Thereby, the mounting plate of the connecting plate reduces the number of parts of the wire guiding device, and the swing of the connecting plate is smoother and smoother.

The base frame is a hollow parallelepiped, wherein the longitudinal sides of the base frame are open and the sides of the base frame are respectively formed with windows.

Thereby, the carriage is installed in the pedestal, so that the carriage is free from external influences and the movement is smoother.

The carriage has a substantially T-shaped longitudinal section and a lower portion is formed with a through-window-shaped through-hole, wherein the upper guide roller and the lower guide roller are respectively disposed in the through-window hole and the upper guide roller and The axis of the lower guide roller is parallel to the longitudinal direction of the pedestal and is in the same vertical plane.

Thus, the rope guide device of the present invention is more compact in construction.

The additional aspects and advantages of the invention will be set forth in part in the description which follows. DRAWINGS

The above and/or additional aspects and advantages of the present invention will become apparent and readily understood from

1 is a perspective exploded view of a rope guide device in accordance with an embodiment of the present invention;

Figure 2 is a partial cross-sectional view of the rope guiding device of Figure 1 in an assembled state;

Figure 3 is a partial cross-sectional plan view of a carriage of a rope guiding device in accordance with an embodiment of the present invention; Figure 4 is a partial cross-sectional longitudinal plan view of a carriage of a rope guiding device in accordance with an embodiment of the present invention; Plan view of the connecting plate of the rope guiding device of the embodiment;

Figure 6 is a cross-sectional view of the lower guide roller in the form of a guide wheel;

Figure Ί is a schematic view of a rope guiding device arranged in front of a winch according to an embodiment of the present invention;

Figure 8 is a transverse cross-sectional view of Figure 7 showing the rope guiding device in a loaded state in which the cable is being unwound from the drum of the winch and the rope roller is in the released position, in accordance with an embodiment of the present invention;

Figure 9 is a transverse cross-sectional view of Figure 7 showing the rope guiding device in a loaded state in accordance with an embodiment of the present invention, wherein the cable is being wound onto the spool of the winch and the rope roller is in the released position;

Figure 10 is a transverse cross-sectional view of Figure 7, showing the rope guiding device in an unloaded state in which the cable is being wound onto the drum of the winch and the rope roller is in a tensioned position;

Figure 11 is a schematic illustration of a conventional guidewire device. detailed description

The embodiments of the present invention are described in detail below, and the examples of the embodiments are illustrated in the drawings, wherein the same or similar reference numerals are used for the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the drawings are intended to be illustrative of the invention and are not to be construed as limiting.

In the description of the present invention, the positional relationship indicated by the terms "longitudinal", "transverse", "above", "below", "front", "vertical", "horizontal", etc. is based on the positional relationship shown in the drawings. The invention is only intended to be illustrative, and is not to be construed as limiting the invention. For example, in the following description, the A direction in Fig. 1 is defined as the longitudinal direction, the B direction is defined as the lateral direction, and the up and down direction in Fig. 2 is defined as the vertical direction.

"Load condition" means: the state in which the wire guide device is placed, as shown in Figure 8 and when the cable is wound onto the reel of the winch or unwound from the reel of the winch with the load applied to the free end of the cable. Figure 9 shows. The "idle state" means a state in which the wire guide device is placed when the cable is wound onto the reel of the winch without applying a load at the free end of the cable, as shown in FIG.

The "tensioning position" refers to the position where the rope roller is placed when the rope is rolled under the unloaded state, as shown in Fig. 10.

"Release position" means: The position where the rope roller is released when the rope roller releases the cable under load and the rope roller does not generate tension in the cable, as shown in Figs.

A rope guiding device 100 according to an embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

As shown in Figs. 1 and 2, a rope guiding device 100 according to an embodiment of the present invention includes a base frame 1, a carriage 2, an upper guide roller 3, and a lower guide roller 4.

The carriage 2 is disposed in the pedestal 1 and is movable along the longitudinal direction A (the left and right direction in Fig. 1) of the pedestal 1. The upper guide roller 3 and the lower guide roller 4 are rotatably mounted on the carriage 2, respectively, and the lower guide roller 4 is located below the upper guide roller 3 and in the vertical direction (up and down direction in Figs. 1 and 2) It is spaced apart from the upper guide roller 3 by a predetermined distance. Here, the predetermined distance may be selected depending on the specific application as long as the cable L can pass through the gap G between the upper guide roller 3 and the lower guide roller 4, as shown in Figs. 8-10.

As shown in FIGS. 7-10, in use, the wire guide device 100 is disposed in front of the winch 200 (on the right side in FIGS. 8-10), and the cable L is wound on the reel 201 of the winch 200 at one end (fixed end). Mounted on the reel 201, the other end (free end) L1 of the cable L passes through the gap G between the upper guide roller 3 and the lower guide roller 4. The free end L1 of the cable L may be connected with a hook (not shown) for connection with, for example, a rescued target vehicle to tow the target vehicle.

When the cable L is wound onto or unwound from the reel 201, the free end L1 of the cable L is continuously moved toward or away from the winch 200 and the rope guide device 100, the upper guide roller 3 and the lower guide roller 4 Guide cable L. Since the upper guide roller 3 and the lower guide roller 4 are rotatable, the cable L does not occur between the upper guide roller 3 and the lower guide roller 4 in the circumferential direction of the upper guide roller 3 and the lower guide roller 4. Sliding friction.

While the cable L is wound onto or unwound from the reel 201, the cable L is also moved relative to the reel 201 in the longitudinal direction A, so that there is also a cable L relative to the upper guide roller 3 and the lower guide The tendency of the roller 4 to move in the longitudinal direction A (for example, the axial direction of the upper guide roller 3 and the lower guide roller 4). However, since the carriage 2 is movable relative to the base frame 1 in the longitudinal direction A, the carriage 2 is moved with the cable relative to the base frame 1 by the cable L, so that the cable L and the upper guide roller 3 and the lower guide are guided. There is no sliding friction between the rollers 4 in the longitudinal direction, which reduces the wear of the cable L and the upper guide roller 3 and the lower guide roller 4, and their Increased life expectancy and reduced costs.

Further, since the upper guide roller 3 and the lower guide roller 4 can be moved relative to the base frame 1 in the longitudinal direction A along with the carriage 2, the lengths of the upper guide roller 3 and the lower guide roller 4 can be shortened, which reduces the cost. The processing is more convenient, and the structure of the rope guiding device 100 is more compact.

As shown in FIGS. 1 and 7-10, in one example of the present invention, the pedestal 1 is in the form of a hollow parallelepiped box in which the pedestal 1 is open along both sides of the longitudinal direction A (left and right sides in FIG. 7). In order to mount the carriage 2 into the pedestal 1. After the carriage 2 is mounted in the base frame 1, the left and right sides of the base frame 1 can be closed by a cover (not shown). A window 1001 is formed on both sides of the pedestal 1 in the lateral direction B (the horizontal direction in Figs. 8 to 10). Thereby, the cable L can pass through the window 1001 and the gap G between the upper guide roller 3 and the lower guide roller 4.

By forming the base frame 1 in a box shape and arranging the carriage 2 in the base frame 1, the carriage 2 can be protected, and the movement of the carriage 2 in the base frame 1 is not easily affected by the outside.

As shown in Figures 1-4, the carriage 2 is formed as a slider having a generally T-shaped longitudinal section. The lower portion of the carriage 2 is formed with a through window hole 23 penetrating in the lateral direction B. The upper guide roller 3 and the lower guide roller 4 are rotatably mounted in the through-window hole 23, and the axial directions of the upper guide roller 3 and the lower guide roller 4 are parallel to the longitudinal direction A of the pedestal 1, and are guided upward. The axis of the roller 3 is in the same vertical plane as the axis of the lower guide roller 4. Thereby, the structure of the guide rope device 100 is more compact and the guiding effect is better.

Of course, the invention is not limited thereto, for example, the axis of the upper guide roller 3 and the axis of the lower guide roller 4 may also be offset by a certain distance in the horizontal plane, the axis of the upper guide roller 3 and/or the lower guide. The axis of the roller 4 can also be offset from the longitudinal direction A by a predetermined angle.

As shown in FIGS. 1-2 and 7-10, in one example of the present invention, the upper guide roller 3 and the lower guide roller 4 are rotatably supported by the first pin shaft 5 and the second pin shaft 6, respectively. It penetrates through the window hole 23. As shown in Figs. 3 and 4, a through hole 24 and a through hole 25 located below the through hole 24 are formed in the longitudinal side walls of the through window hole 23. Both ends of the first pin shaft 5 respectively support the through holes 24, and both ends of the second pin shaft 6 are respectively supported in the through holes 25. The upper guide 3 and the lower guide 4 are rotatable about the first pin 5 and the second pin 6, respectively.

Of course, the invention is not limited thereto, for example, a bearing may be provided between the upper guide 3 and the first pin 5 and between the lower guide 4 and the second pin 6. Optionally, the upper guiding member 3 and the first pin 5 can also be fixed, and a bearing is disposed in the through hole 24, so that the upper guiding member 3 is opposite to the first pin 5 The carriage 2 rotates. Similarly, the lower guide 4 is also fixed to the second pin 6 and a bearing is provided in the through hole 25, so that the lower guide 4 and the second pin 6 rotate together with respect to the carriage 2. Further alternatively, instead of the first and second pins 5, 6, the upper guide 3 and the lower guide 4 are respectively formed with journals on both sides thereof, the upper guide 3 and the lower guide 4 They are rotatably supported in the through holes 24 and 25 through the journals, respectively. Bearings may be provided in the through holes 24 and 25 for reduction and friction.

In one example of the invention, the lower guide 4 is formed in the form of a guide wheel. As shown in Fig. 6, the guide wheel 4 is formed with a center hole 42, and a circumferential groove 41 is formed on the outer peripheral surface thereof. The circumferential groove 41 is for accommodating the cable L as shown in FIG. When the cable L drives the carriage 2 to move in the longitudinal direction A, it can be ensured that the cable L does not move in the longitudinal direction with respect to the upper guide roller 3 and the lower guide roller 4. Of course, the present invention is not limited thereto, and for example, the upper guide roller 3 may be formed in the form of a guide wheel and the outer peripheral surface is formed with a circumferential groove for accommodating the cable L. Further alternatively, the upper guide roller 3 and the lower guide roller 4 may be simultaneously formed in the form of guide wheels whose outer peripheral faces are formed with circumferential W grooves.

In one example of the present invention, the carriage 2 is moved within the pedestal 1 by balls 7. More specifically, as shown in Figs. 3 and 4, accommodating recesses 22 are provided on the top and bottom surfaces of the carriage 2, respectively, and the balls 7 are housed in the accommodating recesses 22. As shown in Fig. 4, in one example, the accommodating recesses 22 are respectively formed at corner portions where the top and bottom surfaces of the carriage 2 intersect the lateral sides. As shown in Fig. 2, when the carriage 2 is mounted in the base 1, the balls 7 are located in the accommodating recesses 22 of the carriage 2 and the carriage 2 is in contact with the pedestal 1 via the balls 7. Since the carriage 2 moves in the pedestal 1 by the rolling of the balls 7, the friction between the carriage 2 and the pedestal 1 is small, the movement of the carriage 2 is smoother, and after a period of use, only the replacement is required. The balls 7, the pedestal 1 and the carriage 2 are not damaged, reducing the cost.

The present invention is not limited thereto, and the carriage 2 can be moved on the base frame 1 by sliding. For example, a slide rail (not shown) may be provided on one of the base frame 1 and the carriage 2, and a corresponding chute (not shown) engaged with the slide rail may be provided on the other.

When the rope guiding device 100 is in the idling state, that is, when the cable L is wound onto the reel 201 without the load being applied to the free end L1 of the cable L, the cable L cannot be used because the cable L has no tension. The neatly arranged on the reel 201 causes a stray rope phenomenon, which reduces the service life of the cable L and even causes damage to the winch 200.

To this end, according to a further embodiment of the invention, as shown in Figures 1 and 2, the rope guiding device 100 is further provided with a rope roller 8 rotatably mounted to the carriage 2 and located at the carriage 2 Lateral side, At the same time, the rope roller 8 is movable between a tensioning position and a release position, wherein in the tensioning position, the rope roller 8 presses the cable L to tension the cable L, as shown in Fig. 10, at which time the rope guiding device 100 is at In the unloaded state; in the release position, the rope roller 8 releases the cable L so that the rope roller 8 does not generate a tension in the cable L, as shown in Figs. 8 and 9, at which time the rope guide device 100 is in a loaded state. When the cable L is wound onto the reel 201 under no-load condition, the rope take-up roller 8 is moved from the release position shown in Figs. 8 and 9 to the tensioning position shown in Fig. 10, thereby tensioning the cable L. Since the cable L is tensioned, it can be wound neatly onto the reel 201 without causing a disordered rope.

In the example shown in Figs. 8 - 10, when the rope guiding device 100 is mounted to the front of the winch 200, the rope discharging roller 8 is located on the side of the rope guiding device 100 adjacent to the winch 200 (left in Figs. 8 - 10) side). The present invention is not limited thereto, and the rope roller 8 may be located on the other side of the rope guide device 100 away from the winch 200 (the right side in Figs. 8 - 10).

As shown in Fig. 1 - 3, the rope roller 8 is attached to the carriage 2 via two connecting plates 9. More specifically, the connecting plate 9 is swingably mounted to the longitudinal sides of the carriage 2, and the rope roller 8 is rotatably mounted to the connecting plate 9, for example, the rope roller 8 is rotatably supported by the third pin 10 Two connecting plates 9 are provided. On the one hand, the rope roller 8 is self-propellable about the axis of the third pin 10, and on the other hand, by the oscillation of the web 9, the rope roller 8 can be wound between the tensioning position and the release position about the pivot axis of the web 9. Revolution.

As shown in Fig. 5, the connecting plate 9 has a substantially sector shape and is formed with a curved through hole 92. The two connecting plates 9 are mounted to the carriage 2 through the second pin 6 of the lower guide roller 4. The connecting plate 9 is formed with a through hole 93, and both ends of the second pin 6 project from the both side walls of the through window hole 23 and pass through the two connecting plates 9. In other words, when the connecting plate 9 is mounted to the carriage 2, the center of the through hole 93 is aligned with the center of the second pin 6 and the through hole 25 in the longitudinal direction A.

As shown in Figs. 1 and 5, the connecting plate 9 is formed with a through hole 94, and both ends of the third pin 10 are respectively supported in the through holes 94 of the two connecting plates 9. A bearing may be disposed between the rope roller 8 and the third pin shaft 10. However, the present invention is not limited thereto, and for example, the rope roller 8 may be fixed to the third pin 10 and rotated together with respect to the connecting plate 9, so that a bearing may be provided in the through hole 94.

In one example of the present invention, as shown in FIG. 5, the center of the through hole 94 and the center of the arcuate through hole 92 are on the same circle centered on the center of the through hole 93 and having a radius R. As shown in FIGS. 1 and 2, when the connecting plate 9 is attached to the carriage 2 by the second pin 6, the two ends of the first pin 5 of the upper guide roller 3 pass through the two connecting plates 9, respectively. Curved through hole 92. When the connecting plate 9 is swung, both ends of the first pin 5 They move within the arcuate through holes 92 of the two connecting plates 9, respectively.

Thus, as shown in Figs. 8 - 10, when the rope roller 8 is moved from the release position to the tensioning position, one end of the first pin 5 is moved from the left end 921 of the arcuate through hole 92 of the left side connecting plate 9, respectively. The right end 922 of the arcuate through hole 92 is moved to the right end 922 of the arcuate through hole 92 from the left end 921 of the arcuate through hole 92 of the right side connecting plate 9.

Since the two ends of the first pin 5 are movably fitted in the arc-shaped through holes 92 of the two connecting plates 9, respectively, when the connecting plate 9 is swung around the pin 6, the first pin 5 can be attached to the connecting plate 9 To the guiding action, the swing of the connecting plate 9 is made smoother and smoother. When the rope roller 8 presses the cable L to tension the cable L, since the rope roller 8 can rotate the third pin 10, the cable L and the rope roller 8 do not occur in the circumferential direction of the rope roller 8 The sliding friction avoids the abrasion of the cable L by the rope roller 8. Moreover, the rope discharge roller 8 also moves with the carriage 2 with respect to the base frame 1, so that no sliding friction occurs between the cable L and the rope discharge roller 8 in the axial direction (i.e., the longitudinal direction A) of the rope discharge roller 8, further The wear of the cable L by the rope roller 8 is reduced.

As shown in FIGS. 1-2 and 8-10, the rope guiding device 100 according to an embodiment of the present invention further includes a positioning assembly disposed on a top surface of the carriage 2 for positioning the two connecting plates 9 at Pre-determined location. By positioning the web 9 at a predetermined position, the rope roller 8 can be held in a desired position, for example, the rope roller 8 is held in the release position shown in Figs. 8 and 9, respectively, and the tension position shown in Fig. 10. .

More specifically, the positioning assembly includes an elastic member 11 and a positioning pin 12. The elastic member 11 may be, for example, an elastic plate. As shown in FIGS. 1-2 and 8-10, the elastic plate 11 is mounted on the top surface formed on the top surface of the carriage 2 by screws 13 and screw holes 26 in the carriage 2. The recess 21 is so that the elastic member 11 and the screw 13 do not affect the movement of the carriage 2 within the pedestal 1. The upper end of the positioning pin 12 is connected to the elastic member 11, and the lower end is extended downward through the through hole 27 (shown in Fig. 4) on the carriage 2 and pushed against the outer peripheral surface of the connecting plate 9, thereby maintaining the sum. Position the connecting plate 9. In the example shown in Fig. 1, two positioning pins 12 are provided corresponding to the two connecting plates 9.

Thus, when it is necessary to rotate the connecting plate 9, it is necessary to overcome the holding force of the elastic member 11 against the connecting plate 9 by the positioning pin 12, thereby preventing the connecting plate 9 from being accidentally rotated.

As shown in Fig. 5, positioning grooves 91 are formed on the outer peripheral faces of the connecting plates 9, respectively, and the positioning grooves 91 are engaged with the lower ends of the positioning pins 12, so that the reliability of positioning and holding of the connecting plates 9 can be improved.

For example, when it is desired to move the rope roller 8 from the tensioned position to the release position, the elastic member 11 is overcome. By locating the holding force of the pin 12 to the connecting plate 9, the connecting plate 9 is rotated in the clockwise direction in FIG. 10, and after the hoisting roller 8 reaches the releasing position, a corresponding positioning of the positioning pin 12 and the outer peripheral surface of the connecting plate 9 is achieved. The grooves 91 are joined. When it is necessary to move the rope roller 8 from the release position to the tensioning position, the holding force of the elastic member 11 against the connecting plate 9 by the positioning pin 12 is overcome, and the connecting plate 9 is rotated in the counterclockwise direction in Fig. 8, the rope roller After reaching the tensioning position, the positioning pin 12 is engaged with the other positioning groove 91 on the outer peripheral surface of the connecting plate 9. As shown in Fig. 4, a plurality of positioning grooves 91 may be provided on the outer peripheral surface of the connecting plate 9, so that the connecting plate 9 can thereby hold the winding roller 8 in a plurality of positions.

It will be understood by those skilled in the art that by selecting the elastic member 11, the holding force of the positioning pin 12 to the connecting plate 9 can be adjusted, so that when the cable L is wound onto the reel 201 under no-load condition, the reeling roller 8 It does not accidentally leave the tensioning position under the action of the cable L, ensuring that the cable L is neatly wound and arranged on the reel 201.

The operation of the rope guiding device 100 and the winch 200 in use in accordance with an embodiment of the present invention will now be described. As shown in FIG. 8, when the target vehicle needs to be towed by the winch 200, the rope roller 8 is moved to the release position, and the positioning pin 12 of the positioning assembly is engaged with the corresponding positioning groove 91 of the connecting plate 9, thereby arranging the rope The roller 8 is held in the release position. Next, the reel 210 is rotated in one direction so that the cable L is unwound from the reel 201, and the operator applies a load F1 to the free end L1 of the cable L to pull the free end L1 to the target vehicle and connect it to the target vehicle in the direction VI. At this time, the rope guiding device 100 is in a loaded state. During the unwinding of the cable L, the cable L also moves in the longitudinal direction A with respect to the reel 201, since the upper guide roller 3 and the lower guide roller 4 are rotatable, the upper guide roller 3 and the lower guide roller 4 and the cable L Sliding friction does not occur in the circumferential direction, and the cable L can be moved together with the carriage 2 with respect to the base frame 1, so that the upper guide roller 3 and the lower guide roller 4 and the cable L do not appear in the longitudinal direction A. Sliding friction occurred.

Next, as shown in Fig. 9, the reel 201 is rotated in a direction opposite to the one direction to wind the cable L onto the reel 210. At the time of winding, the target vehicle applies a load F2 to the free end L1 of the cable L in the direction V2, so that the cable L is tensioned and can be aligned neatly on the reel 201. At this time, the rope roller 8 is in the release position and the rope guide device is in a loaded state. As described above, since the upper guide roller 3 and the lower guide roller 4 can be rotated, and the carriage 2 can be moved together with the cable L with respect to the carriage 1 in the longitudinal direction A, the upper guide roller 3 and the lower guide roller 4 are No sliding friction occurs in the longitudinal direction A and the circumferential direction with the cable L, and the wear of the cable L is lowered.

Finally, as shown in Figure 10, after pulling the target vehicle into position, the free end L1 of the cable L Disengaged from the target vehicle, the free end L1 has no load at this time, so the unfolded cable L is slack, and the rope guiding device 100 is in an idling state. Overcoming the holding force of the positioning pin 12 on the connecting plate 9, the connecting plate 9 is rotated clockwise, thereby moving the rope roller 8 from the releasing position to the tensioning position, and the positioning pin 12 is engaged with a corresponding positioning groove 91 so as to The rope roller 8 is held in the tensioned position. Then the reel 201 is rotated in the opposite direction to wind the cable L onto the reel 210, and since the rope roller 8 tensions the cable L, the cable L can be wound and arranged neatly and orderly on the reel 201, There will be no ropes.

Moreover, since the upper guide roller 3 and the lower guide roller 4 are rotatable and the carriage 2 moves together with the cable L in the longitudinal direction A with respect to the base frame 1, the upper guide roller 3 and the lower guide roller 4 and the cable L are No sliding friction occurs in the longitudinal direction and the circumferential direction, which reduces the wear of the cable L and prolongs the life.

While the embodiments of the present invention have been shown and described, the embodiments of the invention may The scope of the invention is defined by the claims and their equivalents.

Claims

Claim

A guide rope device, comprising:

Base frame

a carriage, the carriage is movably disposed on the base frame along a longitudinal direction of the base frame;

An upper guide roller rotatably mounted on the carriage; and

a lower guide roller rotatably mounted on the carriage, wherein the lower guide roller is located below the upper guide roller and spaced apart from the upper guide roller in a vertical direction by a predetermined distance.

2. The rope guide device according to claim 1, wherein an axis of the upper guide roller is in the same vertical plane as an axis of the lower guide roller, and the upper guide roller and the lower portion The axial direction of the guide rolls is parallel to the longitudinal direction of the base frame.

3. The rope guide device according to claim 1, wherein the lower guide roller and/or the upper guide roller are in the form of a guide wheel, and an outer peripheral surface of the guide wheel is formed for A circumferential EJ slot that houses the cable.

The rope guide device according to claim 1, wherein the upper guide roller and the lower guide roller are supported in the carriage by first and second pin shafts, respectively.

The rope guide device according to claim 1, wherein the carriage moves on the base frame by balls.

The rope guiding device according to claim 5, wherein the top surface and the bottom surface of the carriage are respectively formed with receiving grooves, wherein the balls are accommodated in the receiving grooves.

The rope guide device according to any one of claims 1 to 4, further comprising a rope roller, the rope roller being rotatably mounted on the carriage and located on a lateral side of the carriage And the rope roller is movable between a tensioned position of the tensioning cable and a release position of the release cable.

The rope guide device according to claim 7, further comprising two connecting plates swingably mounted to the longitudinal sides of the carriage, respectively, the rope rollers being mounted on the two connecting plates to pass The oscillation of the two webs revolves between the tensioning position and the release position.

9. The rope guide apparatus according to claim 8, further comprising a positioning assembly disposed on a top surface of the carriage for holding the two connecting plates at a predetermined position.

The guide wire device according to claim 9, wherein the positioning assembly comprises: an elastic member installed in a longitudinal groove formed on a top surface of the carriage; and a connecting plate On the outer perimeter.

The rope guide device according to claim 10, wherein a positioning groove for engaging the positioning pin is formed on an outer peripheral surface of each of the connecting plates.

12. The rope guide device according to claim 8, wherein:

Each connecting plate is fan-shaped and formed with a curved through hole;

The two connecting plates and the lower bow) are mounted to the carriage by a second pin;

The rope roller is mounted on the two connecting plates through the third pin; and

The upper guide bow I roller is mounted on the carriage through a first pin shaft, and two ends of the first pin shaft respectively extend from longitudinal sides of the carriage to respectively movably fit between the two connections Inside the curved through hole of the plate.

13. The rope guiding device according to claim 1, wherein the base frame is a hollow parallelepiped, wherein the longitudinal side faces of the base frame are open and the lateral sides of the base frame are respectively formed with windows.

14. The rope guide device according to claim 1, wherein the carriage has a substantially T-shaped longitudinal section and a lower portion is formed with a through-hole through-hole through which the upper guide roller and the lower guide are formed. Rollers are respectively disposed in the through-holes and the axes of the upper and lower guide rolls are parallel to the longitudinal direction of the pedestal and in the same vertical plane.