Wire rope drum and lifting machinery

Abstract

The present invention discloses a wire rope drum and a lifting machinery: comprising a broken line segment 1, a straight line segment 1, a broken line segment 2, and a straight line segment 2 connected in sequence; the broken line segment 1 is provided on both sides with an odd-to-even climbing end and an even-to-odd climbing end; the inner edge of the baffle of the odd-to-even climbing end is provided with a climbing support platform 1 and a groove 1 alternately from the inside to the outside; the inner edge of the baffle of the even-to-odd climbing end is provided with a groove 2 and a climbing support platform 2 alternately from the inside to the outside; the broken line segment is provided on both sides with a plurality of lane-changing guide bosses 1 and a plurality of lane-changing guide bosses 2, and the lane-changing guide bosses 1 and the lane-changing guide bosses 2 are arranged in a staggered manner. The present invention solves the problem that the wire rope drum in the prior art cannot accommodate the wire rope when climbing and that the rope is easily tangled when more than two layers are present. It solves the rope tangling problem that is easily caused by the broken line portion of the conventional drum being unable to change lanes normally.

Description

Technical Field

[0001] The present invention relates to the technical field of wire rope drums, and in particular to a wire rope drum and a lifting machinery. Background Art

[0002] Wire rope drum, commonly known as winch, is usually used in lifting machinery. It is very important that the wire rope wrapped around it is arranged neatly. Generally, it is arranged in more than 4 layers. At the same time, the precision of the drum mold and the tolerance of the wire rope diameter have a great influence on the winding. The problem of tangled ropes is very easy to occur when multiple layers are wound, which can easily cause excessive wear and extrusion damage to the wire rope, shorten the service life of the wire rope, and easily cause safety accidents.

[0003] The most commonly used wire rope drums in existing technology include single-fold grooves, double-fold grooves, and spiral grooves. Double-fold grooves are the most widely used. Double-fold grooves alternate between oblique and straight grooves, creating two oblique and two straight groove areas on the drum surface. Oblique grooves are grooves that intersect the drum's core, while straight grooves are grooves that intersect the core or run parallel to the flange. The structure of a fold groove drum creates a gap between each layer and the drum baffle. Furthermore, the winding directions of the wire rope in odd and even layers are opposite. This can easily cause the rope to be pulled in the gap between the drum baffles during climbing, and can lead to unpredictable changes in the rope's trajectory at the intersection of the odd and even fold lines, resulting in rope tangles. Summary of the Invention

[0004] In order to solve the deficiencies in the prior art, the present invention provides a wire rope reel, which solves the technical problem in the prior art that the wire rope winding is easily disordered.

[0005] In order to achieve the above objectives, the present invention adopts the following technical solutions:

[0006] A wire rope reel, characterized in that it comprises a broken line segment 1, a straight line segment 1, a broken line segment 2, and a straight line segment 2 connected in sequence, wherein the two sides of the broken line segment 1 are odd-to-even climbing ends and even-to-odd climbing ends, respectively, and the inner edge of the baffle of the odd-to-even climbing end is alternately provided with a climbing support platform 1 and a groove 1 from the inside to the outside, and the inner edge of the baffle of the even-to-odd climbing end is alternately provided with a groove 2 and a climbing support platform 2 from the inside to the outside;

[0007] A plurality of lane-changing guide bosses 1 and a plurality of lane-changing guide bosses 2 are respectively provided on both sides of the folded line segment, and the lane-changing guide bosses 1 and the lane-changing guide bosses 2 are relatively staggered.

[0008] As a preferred embodiment of the present invention, the aforementioned wire rope reel: the radians of the climbing segment, straight line segment 1, broken line segment, and straight line segment 2 are 5 / 18π, 13 / 18π, 5 / 18π, and 13 / 18π, respectively.

[0009] As a preferred embodiment of the present invention, the aforementioned wire rope reel: the lane changing guide boss 1 and the lane changing guide boss 2 both include a slope section 1, a parallel section, and a slope section 2 connected in sequence, the height of the parallel section is P / 4, the length of the slope section 1 is twice the length of the slope section 2, the inner surface of the parallel section is parallel to the baffle, and the length of the parallel section is equal to the length of the slope section 1.

[0010] As a preferred solution of the present invention, the aforementioned wire rope reel: the root of the straight section baffle is further provided with a strip-shaped boss.

[0011] As a preferred solution of the present invention, the aforementioned wire rope reel: the root of the baffle of the straight line segment 2 B is further provided with a strip boss 2, and the strip boss 2 is arranged opposite to the strip boss 1.

[0012] As a preferred solution of the present invention, the aforementioned wire rope drum is further provided with a strip boss three, wherein one end of the strip boss three 8 is connected to the rope hole along the rotation direction of the wire rope and the other end is connected to the lane-changing guide boss two.

[0013] As a preferred solution of the present invention, the aforementioned wire rope reel: the height of the climbing support platform 1 and the climbing support platform 2 is equal to P / 4.

[0014] A lifting machinery is characterized by comprising the aforementioned wire rope drum.

[0015] The beneficial effects achieved by the present invention are:

[0016] In order to solve the problem that the wire rope is difficult to completely discharge during the climbing process, the present invention designs a groove at the baffle. The size of the groove is based on fully accommodating the wire rope of this layer. The first layer of the wire rope is filled with the gap between the wire rope and the baffle by means of strip boss 1 and strip boss 2 to prevent the second layer of wire rope from being accidentally squeezed into the space between the first layer of rope and the baffle. When climbing to the upper layer from more than two layers, a climbing support is designed to support the wire rope on the lower right side of the climbing rope together to guide the wire rope to climb to the upper layer along the correct trajectory. The present invention solves the problem that the wire rope drum in the prior art cannot accommodate the wire rope when climbing and the wire rope is easily tangled when it is more than two layers. It solves the problem that the tangled rope caused by the inability of the folded line part of the conventional drum to change lanes normally is solved.

[0017] The present invention has a wider application range and can solve the technical problem of normal winding in the range of 0.2 to 2° rope entry angle α (the rope entry angle of a common reel is 0.5 to 1.5°). BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is an axial cross-sectional view of the present invention;

[0019] Figure 2 yes Figure 1XX-direction sectional view;

[0020] Figure 3 yes Figure 1 YY-direction sectional view;

[0021] Figure 4 is a cross-sectional view of the lane-changing guide boss 1 of the present invention (straightened state);

[0022] Figure 5 is a cross-sectional view of the lane-changing guide boss 2 of the present invention (straightened state);

[0023] Figure 6 This is a structural diagram of the lane-changing guide boss 2 of the present invention;

[0024] Figure 7 This is a structural diagram of the climbing support platform 2, the rope outlet hole and the strip-shaped boss of the present invention;

[0025] Figure 8 It is an overall expanded view of the present invention;

[0026] Figure 9 This is a schematic diagram of the working of D4 and D5 in the lane change guide boss 2 of the present invention;

[0027] Figure 10 This is a schematic diagram of the working of positions 4 and 5 in the climbing support platform of the present invention;

[0028] Figure 11 This is the arrangement of the 2nd to Nth layers of wire rope on the drum in the prior art (theoretical state);

[0029] Figure 12 This is the arrangement of the 2nd to Nth layers of wire rope on the drum in the prior art (actual state);

[0030] Figure 13 This is the existing technology of changing the lanes of the 2nd to Nth layers of wire rope on the drum (actual state);

[0031] Figure 14 This is the change of the 2nd to Nth layer of steel wire rope on the drum of the present invention (actual state);

[0032] Figure 15 This is the ideal arrangement of the three locations in the prior art;

[0033] Figure 16 This is the actual arrangement of the three locations in the prior art;

[0034] Figure 17 This is a working principle diagram of the climbing support platform 1 and the groove 1 of the present invention;

[0035] The meaning of the accompanying figures: 1-climbing support platform 1; 2-climbing support platform 2; 3-lane-changing guide boss 1; 4-lane-changing guide boss 2; 5-rope outlet hole; 6-strip boss 1; 7-strip boss 2; 8-strip boss 3; 11-groove 1; 21-groove 2. DETAILED DESCRIPTION

[0036] The present invention will be further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present invention and are not intended to limit the scope of protection of the present invention.

[0037] A wire rope drum primarily consists of three parts: the drum body and baffles attached to each end. The baffles are typically circular, with their inner surfaces parallel to the drum axis. The outer surface of the drum body is equipped with grooves for guiding and positioning the wire rope. The commonly used double-fold rope grooves consist of two folds and two straight sections. Each fold advances P / 2 (P is the wire rope pitch) axially along the drum, and after passing through the two folds, the axial advance reaches exactly P, completing one complete winding. The double-fold structure ensures that each layer has a gap P / 2 between one end and the drum baffle. Furthermore, the winding directions of odd and even layers of wire rope are opposite (for example, odd layers are wound from the left baffle to the right baffle, while even layers are wound from the right baffle to the left). This can easily lead to unplanned winding at the P / 2 gap between the drum baffles and the intersection of the folds of the odd and even layers, causing tangled rope.

[0038] This embodiment is based on the improvement of the double-fold rope groove in the prior art. Figure 8 As shown: the two straight line portions are straight line segment 1 and straight line segment 2; the two broken line segments are broken line segment 1 and broken line segment 2, and broken line segment 1, straight line segment 1, broken line segment 2, and straight line segment 2 are connected in sequence along a circle of the reel.

[0039] Combine Figures 1 to 7 As shown: Specifically, the two ends (baffles) of the broken line segment 1 are the odd-to-even climbing ends ( Figure 1 、 Figure 2 The area in the middle), the even-to-odd climbing end ( Figure 1 、 Figure 2 The so-called odd-numbered layers are the 1st, 3rd, 5th, ... layers wound on the reel and stacked from the inside to the outside, and the so-called even-numbered layers are the 2nd, 4th, 6th, ... layers.

[0040] The inner edge of the baffle at the odd-to-even climbing end is alternately provided with climbing platform 1 and groove 11, from the inside out. The inner edge of the baffle at the even-to-odd climbing end is alternately provided with groove 21 and climbing platform 2, from the inside out. That is, within the region of the odd-to-even climbing end, climbing platform 1 and groove 11 are alternately arranged, and within the region of the even-to-odd climbing end, climbing platform 2 and groove 21 are also alternately arranged. Since and are located at opposite ends of the drum and are arranged oppositely, and since adjacent layers of steel wire ropes are staggered, with one end of each layer having a gap of P / 2 between it and the drum baffle, climbing platform 1 and groove 11 of the present invention are flush with groove 21 and climbing platform 2, respectively. Lane-changing guide boss 1 and lane-changing guide boss 2 are provided at both ends of broken line segment 2, respectively, and these lane-changing guide bosses 1 and 2 are arranged in an alternating manner. That is, from the inside to the outside (from the inner edge of the baffle to the outer edge), lane-changing guide bosses 1 and 2, 4 are not arranged continuously. The distance between adjacent lane-changing guide bosses 1 and 2 is equal to the actual pitch P of the reeled wire rope. The same applies to lane-changing guide bosses 2 and 4. Their relative arrangement means that the gap between two adjacent lane-changing guide bosses 1 and 3 directly faces one of the lane-changing guide bosses 2 and 4. Furthermore, the spacing between adjacent climbing supports 1, adjacent grooves 11, adjacent climbing supports 2, and adjacent grooves 21 should be equal to the actual pitch P of the reeled wire rope.

[0041] In this embodiment, the radians of the broken line segment 1, the straight line segment 1, the broken line segment 2, and the straight line segment 2 are preferably 5 / 18π, 13 / 18π, 5 / 18π, and 13 / 18π, respectively.

[0042] Combine Figures 2 to 5 The lane change guide boss of the present invention comprises a slope segment 1 (C5-C3), a parallel segment (C3-C2), and a slope segment 2 (C2-C1) connected in sequence, wherein the height of the parallel segment is P / 4, the length of the slope segment 1 is twice the length of the slope segment 2, the inner surface of the parallel segment is parallel to the baffle, and the length of the parallel segment is equal to the length of the slope segment 1. Similarly, if Figure 5 As shown: the lane-changing guide boss 2 also includes the above three sections. It should be noted that: during the reel winding process, the slope section 1, the parallel section, and the slope section 2 are connected to the wire rope in sequence ( Figure 4 The middle arrow indicates the winding direction of the wire rope).

[0043] The base of the baffle plate for the first straight segment of the present invention is further provided with a strip-shaped boss 1 (6). The base of the baffle plate for the second straight segment is further provided with a strip-shaped boss 2 (7). Strip-shaped boss 2 (7) is positioned opposite to strip-shaped boss 1 (6). The term "opposite" refers to a positional difference of π between the two. A strip-shaped boss 3 (8) is also provided connecting the rope outlet hole (5) and the lane-changing guide boss 2 (4), supporting the third layer of steel wire rope.

[0044] The lane changing principle of this embodiment is explained by taking the rope outlet hole 5, which is located at the junction of the first layer of the even-to-odd climbing end and the straight section at the edge of the drum body, as an example:

[0045] First layer: rope hole-DCA, second layer: ACBD:

[0046] In conjunction with all the accompanying figures: During operation, at the initial stage, the wire rope begins at the rope exit hole 5. Strip boss 1 (6) creates a certain distance between the wire rope and the side baffle. The wire rope then enters straight segment 2, where it continues winding. The wire rope then transfers to the other side baffle, first entering zigzag segment 2, and then, under the action of strip boss 2 (7), entering zigzag segment 1. After the first winding is complete, the baffles on both sides connect the ends of the wound wire rope via strip boss 1 (6) and strip boss 2 (7), respectively, filling the gap between the wire rope and the baffles. In this embodiment, the thickness of strip boss 1 (6) and strip boss 2 (7) is preferably equal to P / 2.

[0047] Within the zigzag line section 1, the wire rope connects to climbing platform 1, climbing from the first floor to the second. When passing through zigzag line section 2, the wire rope changes lanes under the action of lane-changing guide boss 1 3. After the switch, the wire rope continues winding along the grooves between the first-floor wire ropes, wraps around the entire drum, and enters lane-changing climbing platform 2 2, climbing from the second floor to the third floor. As the winding continues, lane-changing guide boss 1 3 changes lanes on even-numbered floors, and lane-changing guide boss 2 4 changes lanes on odd-numbered floors.

[0048] Combine Figure 3 、 Figure 5 、 Figure 8 and Figure 9 As shown: This embodiment takes the lane-changing guide boss 2 4 as an example to introduce the lane-changing principle of this embodiment. Figure 9 The solid line in the middle represents the first layer, and the dashed line represents the second layer. In the drum expansion diagram, determine the distance L5 between the outermost wire rope of the first layer and the baffle, and the axial distance t5 between the outermost wire rope of the second layer and the outermost wire rope of the first layer. In the cross-sectional view, draw a circle with the center of the outermost wire rope of the first layer as the center and φ2P as the diameter. The centerline of the outermost wire rope of the first layer is offset to the left by t5, intersecting the circle of φ2P at point M5. Point M5 then determines the position of the outermost wire rope of the second layer. Because the arrangement of odd-numbered layers is consistent with the arrangement of even-numbered layers, simply copying the first and second layers will yield the arrangement of the third, fourth, and all other layers. Ensuring that the outermost wire rope of the third layer is tangent to the drum baffle allows the projections (lane change guide projection 1 3 and lane change guide projection 2 4 in this embodiment) to be created. Similarly, the arrangement at cross section D4 can be easily drawn.

[0049] Similarly: Take the climbing platform 1 as an example, refer to Figure 10, Figure 10 The solid circles represent the first and third layers, and the dashed circles represent the second and fourth layers. In the drum expansion diagram, determine the distance H5 between the leftmost, second outermost ring of the first layer's wire rope and the baffle, and the axial distance n5 between the leftmost, second outermost ring of the second layer's wire rope and the leftmost, second outermost ring of the first layer's wire rope. In the cross-sectional view, draw a circle with the center of the leftmost, second outermost ring of the first layer's wire rope as the center and φ2P as the diameter. The centerline of the first layer's outermost ring of wire rope is offset to the left by n5, intersecting the φ2P circle at point N5. Point N5 then determines the position of the second layer's outermost ring of wire rope. Because wire ropes are theoretically tightly fitted, the first layer's outermost ring of wire rope can be determined by the leftmost, second outermost ring of wire rope in the first layer and the leftmost outermost ring of wire rope in the second layer. Since the layout of odd-numbered and even-numbered layers is consistent, simply copying layers 1 and 2 will yield the layout of layers 3, 4, and all other layers. Ensuring that the outermost left circles of layers 1 and 3 are tangent to the drum baffles allows for the baffle depressions to be created. Since point 5 is the starting point for the 1st to 2nd and 3rd to 4th layers, without an auxiliary support, the wire rope could easily get stuck in the gap between layer 2 and the baffle when stressed. Therefore, a climbing support 1 is installed below the 3rd layer climbing point. Its optimal height is P / 4, and it is ensured that climbing support 1 is tangent to the wire ropes of layer 3. Similarly, the wire rope layout at section 4 can be easily drawn.

[0050] See Figure 11 and Figure 12 : Theoretical working state of ordinary reel lane change ( Figure 11 ).Depend on Figure 11 As can be seen, when the second layer intersects the first layer's broken line, O1-O1 is the highest point of the triangular boss and the intersection of the upper and lower layers, with the centers of the upper and lower wire ropes aligned. As the wire ropes continue to advance, the upper layer's wire rope enters the left side of the lower layer (at 1-1), creating a leftward force component Fx on the upper layer, thus achieving a crossover lane change.

[0051] Since there is a lateral gap in theory, but the actual wire rope needs to be squeezed by the previous circle before changing the lane, the fold line part with more than 2 layers will produce a fold angle β, and the wire ropes in the fold line part are arranged obliquely. This fold angle will cause an excessive gap between the fold line part and the drum baffle ( Figure 12 ).

[0052] See Figure 13 : The actual situation of the 2-N layer drum lane change is that due to the large gap between the lower layer fold line and the drum baffle, the upper layer wire rope is on the right side of the lower layer (o3-o3) when the triangular boss is at the highest point. When the wire rope continues to move forward, the upper layer wire rope is still on the right side of the lower layer (3-3). At this time, the lower layer always has a rightward component force Fx' on the upper layer, and cross lane change cannot be achieved.

[0053] See Figures 14 to 17: The present invention adopts lane-changing guide bosses (including lane-changing guide bosses 3 and lane-changing guide bosses 4 arranged on both side baffles) to change lanes. Due to the excessive gap between the lower folded line portion and the drum baffle, the upper steel wire rope is on the right side of the lower layer (o4-o4) when the boss is at its highest point. When the steel wire rope continues to move forward, the parallel section of the lane-changing guide boss can support the upper steel wire rope to continue moving forward without turning right. The lower layer continues to move to the right. When it continues to move forward to (4-4), the center lines of the upper and lower layers gradually overlap. Continuing to move forward, the upper steel wire rope enters the left side of the lower steel wire rope (b4-b4), realizing lane change.

[0054] When a conventional drum is climbing from the lower level to the upper level, the wire rope does not actually climb in a single plane, but rather rotates at a spatial angle. This prevents the wire rope from being fully discharged within the drum spacing L, squeezing the drum baffle outward and causing rope jamming. Furthermore, when climbing above two levels, the wire rope is supported only by the adjacent wire rope on the right, with the baffle on the left. Under the tension of the wire rope, it can easily fall into the gap between the lower wire rope and the baffle, causing rope congestion and tangling.

[0055] This embodiment also discloses a lifting machinery: comprising the wire rope drum mentioned above in this embodiment.

[0056] In order to solve the problem that the wire rope is difficult to completely discharge during the climbing process, the present invention designs a groove at the baffle. The size of the groove is based on fully accommodating the current layer of wire rope. The first layer of wire rope is filled with the gap between the wire rope and the baffle by the strip boss 1 6 and the strip boss 2 7 to prevent the second layer of wire rope from being accidentally squeezed into the space between the first layer of rope and the baffle. When climbing to the upper layer above the second layer, a climbing support is designed to support the wire rope on the lower right side of the climbing rope together to guide the wire rope to climb to the upper layer along the correct trajectory. The present invention solves the problem that the wire rope drum in the prior art cannot accommodate the wire rope when climbing and the wire rope is easily tangled when climbing above the second layer. It solves the problem that the folded line part of the conventional drum cannot change lanes normally.

[0057] The present invention has a wider application range and can solve the technical problem of normal winding in the range of 0.2 to 2° rope entry angle α (the rope entry angle of a common reel is 0.5 to 1.5°).

[0058] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A wire rope reel, characterized in that: It comprises a broken line segment 1, a straight line segment 1, a broken line segment 2, and a straight line segment 2 connected in sequence, wherein the two sides of the broken line segment 1 are an odd-to-even climbing end and an even-to-odd climbing end respectively, and the inner edge of the baffle of the odd-to-even climbing end is alternately provided with a climbing support platform 1 (1) and a groove 1 (11) from the inside to the outside, and the inner edge of the baffle of the even-to-odd climbing end is alternately provided with a groove 2 (21) and a climbing support platform 2 (2) from the inside to the outside; A plurality of lane-changing guide bosses (1) and a plurality of lane-changing guide bosses (2) (4) are respectively provided on both sides of the folding line segment 2, and the lane-changing guide bosses (1) and the lane-changing guide bosses (2) (4) are relatively staggered. The first lane-changing guide boss and the second lane-changing guide boss each include a first slope segment, a parallel segment, and a second slope segment connected in sequence. The height of the parallel segment is P / 4, the length of the first slope segment is twice the length of the second slope segment, the inner surface of the parallel segment is parallel to the baffle, and the length of the parallel segment is equal to the length of the first slope segment. The height of the climbing support platform 1 (1) and the climbing support platform 2 (2) is equal to P / 4; P is the pitch of the wire rope; The root of the straight line segment baffle is also provided with a strip-shaped boss (6); The root of the baffle of the straight line segment 2 is further provided with a strip-shaped boss 2 (7), and the strip-shaped boss 2 (7) is arranged opposite to the strip-shaped boss 1 (6); A strip-shaped boss three (8) is also provided, wherein one end of the strip-shaped boss three (8) is connected to the rope hole along the rotation direction of the wire rope, and the other end is connected to the lane-changing guide boss two (4).

2. A wire rope reel according to claim 1, characterized in that: The radians of the broken line segment 1, the straight line segment 1, the broken line segment 2, and the straight line segment 2 are 5 / 18π, 13 / 18π, 5 / 18π, and 13 / 18π, respectively.

3. A lifting machine, characterized in that: A wire rope reel comprising the steel wire rope reel according to claim 1 or claim 2.

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