A method for determining the angle of a guide pulley based on the guide pulley and the wire rope

Abstract

The present invention provides a method for determining the angle of a guide pulley based on a guide pulley and a wire rope. The method comprises the following steps: setting a calibration point on a support plane, setting a guide pulley at the calibration point, making the wire rope on the winch pass around a pulley on the top of a tripod, and then passing around the guide pulley and an offset pulley. The method records the plane ABC1 where the wire rope is located when the boom is at a minimum value, the plane ABC2 where the wire rope is located when the boom is at a maximum value, and the angle a between the plane ABC1 and the plane ABC2. The median value of the angle a is taken as the deflection angle b of the guide pulley frame. The angle of the mounting seat is readjusted so that the axis of the mounting seat coincides with the intersection line of the plane ABC3 and the support plane. The guide pulley frame with the deflection angle b is mounted on the mounting seat. After the guide pulley is mounted on the guide pulley frame, the wire rope passing around the guide pulley is released at the deflection angle b. During the boom luffing process, the angle between the wire rope and the offset pulley can be reduced, thereby reducing the wear of the wire rope.

Description

Technical Field

[0001] The present invention relates to the technical field of cranes, and in particular to a method for determining an angle of a guide pulley based on a guide pulley and a steel rope. Background Art

[0002] A winch is installed on the crane, and a wire rope is wound on the winch. When the crane is used to lift heavy objects, the wire rope on the winch needs to pass through the pulley set on the crane boom and be connected to the heavy object. Since the wire rope on the winch and the pulley are not on the same horizontal line, there is a certain angle between the output direction of the wire rope output by the winch and the radial direction of the pulley. In this way, the wire rope will be subjected to a force perpendicular to the direction of the wire rope, which makes it easy for the wire rope to escape from the pulley groove of the pulley. In order to solve this technical problem, the Chinese patent application No. 202211211953.3 and the publication date of 2023.03.21 are proposed. The patent document discloses an assembly method of a pulley structure for reducing the deflection angle of a wire rope, the pulley structure includes a pulley group, the pulley group includes a first pulley and a second pulley, the first pulley is arranged obliquely relative to the second pulley; a first rope-containing groove is provided in the first pulley, and a second rope-containing groove is provided in the second pulley; the inclined first rope-containing groove will coincide with the wire rope with the deflection angle, so that the output direction of the wire rope is in the same straight line as the first pulley, and the wire rope is not easy to separate from the first pulley; one end of the first rope-containing groove coincides with one end of the second rope-containing groove along the width projection direction of the pulley group; the wire rope output from the first rope-containing groove vertically enters the second rope-containing groove.

[0003] The above document changes the force direction of the wire rope on the second pulley by using the first pulley, so that the part of the wire rope in contact with the second pulley is no longer subjected to the tension perpendicular to the wire rope outgoing direction, thereby reducing the wear caused by the side contact between the wire rope and the second rope groove; however, during the boom luffing process, there is still a large angle change between the wire rope and the second pulley, so that the wire rope still has a large area of ​​contact with the side of the second rope groove, which causes wire rope wear. Summary of the Invention

[0004] The purpose of the present invention is to provide a method for determining the angle of a guide pulley based on the guide pulley and the wire rope. By arranging a guide pulley on a rotary platform and adjusting the angle of the guide pulley, the angle between the wire rope and the offset pulley is further reduced during the boom length change process, thereby reducing the wear of the wire rope and extending the service life of the wire rope.

[0005] To achieve the above object, a method for determining the angle of a guide pulley based on the guide pulley and the wire rope includes the following steps:

[0006] S0 takes the center of the slewing platform as the center of the circle, and sets a calibration point on the support plane in the 60°~70° angle range relative to the horizontal line passing through the center of the slewing platform and close to one end of the boom, so that the distance from the calibration point to the center of the slewing platform is greater than the radius of the slewing platform mounting hole. Then, fix the mounting seat at the calibration point, install the guide pulley frame on the mounting seat, and install the guide pulley on the guide pulley frame.

[0007] S1 passes the wire rope on the winch around the pulley on the top of the tripod, and then passes it around the guide pulley and the offset pulley installed on the boom in sequence before connecting the hook.

[0008] S2 sets the contact point between the wire rope and the guide pulley near the boom as point B, the pulley on the top of the tripod as point A, the contact point between the wire rope and the offset pulley near the guide pulley when the boom amplitude is minimum as point C1, the contact point between the wire rope and the offset pulley near the guide pulley when the boom amplitude is maximum as point C2, and the contact point between the wire rope and the offset pulley near the guide pulley when the boom amplitude is at the midpoint as point C3.

[0009] S3 drives the boom to rotate within the amplitude variation range, and records the plane ABC1 when the boom is at its minimum value during the amplitude variation process, the plane ABC2 when the boom is at its maximum value during the amplitude variation process, and the angle a between the planes ABC1 and ABC2.

[0010] S4 calculates the deflection angle b of the guide pulley frame from the angle a, and then constructs plane ABC3 through points A, B, and C3 so that the angles between planes ABC1 and ABC3, the angle between planes ABC2 and ABC3, and the deflection angle b of the guide pulley frame are equal;

[0011] S5 readjusts the angle of the mounting seat so that the axis of the mounting seat coincides with the intersection line of plane ABC3 and the support plane, and installs the guide pulley frame with a deflection angle b on the mounting seat. After the guide pulley is installed on the guide pulley frame, the wire rope passing around the guide pulley is released at a deflection angle b.

[0012] The guide pulley motor angle is determined by the above method, that is, the yaw angle b of the guide pulley and the angle between the guide pulley and the horizontal line passing through the center of the slewing platform are determined. After the wire rope is installed, the wear between the wire rope and the guide pulley is reduced during the boom length change process, thereby extending the service life of the wire rope and the guide pulley.

[0013] Furthermore, the calculation formula of the deflection angle b in step S4 is as follows:

[0014] b=1 / 2×a.

[0015] The above arrangement enables the median value of the angle between plane ABC1 and plane ABC2 to be used as the deflection angle of the guide pulley.

[0016] Furthermore, the guide pulley frame includes a flange plate, pulley plate 1, pulley plate 2, a rope guard rod and two or more rib plate 1 and rib plate 2. Pulley plate 1 and pulley plate 2 are arranged parallel to each other on the flange plate. Pulley plate 1 is provided with a through hole 1, pulley plate 2 is provided with a through hole 2, and the rope guard rod is arranged between pulley plate 1 and pulley plate 2.

[0017] The above arrangement facilitates the fixing shaft to pass through through hole 1 and through hole 2 to fix the guide pulley between pulley plate 1 and pulley plate 2, and the rope guard rod can prevent the wire rope from escaping from the rope groove of the guide pulley.

[0018] Furthermore, the pulley plate 1 is tilted on the flange plate at a deflection angle b, and the tilt angle c between the pulley plate 1 and the flange plate is equal to the deflection angle b.

[0019] The above setting enables the guide pulley to be installed on the guide pulley frame to produce an inclination angle of the deflection angle b, thereby reducing the deviation angle between the wire rope and the offset pulley on the boom after the wire rope is unwound, thereby reducing the friction between the wire rope and the offset pulley, reducing the wear of the wire rope, and extending the service life of the wire rope.

[0020] Furthermore, the distance from the center of the rope guard rod to the center of the through hole 1 minus the radius of the rope guard rod is greater than the radius of the guide pulley.

[0021] The above arrangement can prevent the wire rope from escaping from the rope groove of the guide pulley while ensuring that the wire rope passing around the guide pulley is normally unloaded.

[0022] Furthermore, the distance from the bottom end of the pulley plate 2 to the center of the through hole 2 is greater than the distance from the bottom end of the pulley plate 1 to the center of the through hole 1.

[0023] The above arrangement ensures that after the pulley plate 1 and the pulley plate 2 are tilted at the deflection angle b on the flange plate, the through hole 1 and the through hole 2 are still coaxially arranged.

[0024] Furthermore, one end of the rib plate 1 is fixedly connected to the pulley plate 1, and the other end of the rib plate 1 is fixedly connected to the flange plate; one end of the rib plate 2 is fixedly connected to the pulley plate 2, and the other end of the rib plate 2 is fixedly connected to the flange plate.

[0025] The above arrangement facilitates fixing the pulley plate 1 and the pulley plate 2 on the flange plate.

[0026] Furthermore, the mounting base includes a base plate, a rib plate, a fixed plate and a connecting plate, the two ends of the fixed plate are fixedly connected to the base plate and the connecting plate respectively, the base plate is provided with more than two through holes three, one side of the rib plate is fixedly connected to the fixed plate, the connecting plate and the flange plate are each provided with more than two through holes four, and the two ends of the rib plate are fixedly connected to the base plate and the connecting plate respectively.

[0027] The above arrangement can fix the mounting seat on the support plane through through hole three, and the guide pulley frame can be fixedly installed on the mounting seat through through hole four. In addition, a rib plate is arranged between the base plate and the connecting plate to enhance the stability of the connecting plate on the mounting seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a main view of plane ABC1, plane ABC2 and plane ABC3 during the boom luffing process of the present invention.

[0029] Figure 2 It is a top view of plane ABC1, plane ABC2 and plane ABC3 during the boom luffing process of the present invention.

[0030] Figure 3 This is a schematic diagram of the mounting base on the rotary platform without showing the connecting plate in the present invention.

[0031] Figure 4 This is a side view of the mounting seat and guide pulley frame of the present invention installed on the rotary platform.

[0032] Figure 5 It is a structural schematic diagram of the guide pulley frame in the present invention.

[0033] Figure 6 It is a side view of the guide pulley frame in the present invention.

[0034] Figure 7 It is the front view of the guide pulley frame in the present invention.

[0035] Figure 8 It is a top view of the guide pulley frame in the present invention.

[0036] Figure 9 for Figure 3 Enlarged view of point D in the middle.

[0037] Figure 10 for Figure 4 Enlarged view of point F in the middle.

[0038] Figure 11 Schematic diagram of the force exerted by the steel wire rope on the side of the guide pulley groove when the pulley plate 1 and the pulley plate 2 are arranged vertically.

[0039] Figure 12Schematic diagram of the force exerted by the wire rope on the side of the guide pulley groove when the deflection angle b of pulley plate 1 and pulley plate 2 is set.

[0040] Figure 13 Schematic diagram of the positions of the guide pulley, wire rope and offset pulley. DETAILED DESCRIPTION

[0041] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0042] like Figures 1 to 10 As shown, the crane includes a slewing platform a2, a tripod a3, a boom 1, a wire rope 2, a winch (not shown in the figure), a guide pulley (not marked in the figure), a guide pulley frame, a mounting seat and an offset pulley (not marked in the figure) arranged on the boom 1.

[0043] The upper surface of the rotary platform a2 is the support plane a1, and the rotary platform a2 has a mounting hole a21. Figure 3 The horizontal line passing through the center o of the rotating platform a2 is a4. The tripod a3 is installed on the rotating platform a2 and is away from the boom 1. One end of the boom 1 is hinged on the rotating platform a2 and is away from the tripod a2.

[0044] In this embodiment, there are two guide pulleys, two guide pulley frames, two mounting seats and two offset pulleys, and they are symmetrically arranged relative to a4.

[0045] The guide pulley frame includes a flange plate 3, a pulley plate 11, a pulley plate 2 12, a rope rod 4 and more than two rib plates 1 21 and rib plates 2 22. The pulley plate 11 is provided with a through hole 1 5, and the pulley plate 2 12 is provided with a through hole 2 6, so that the guide pulley can be rotatably installed between the pulley plate 1 11 and the pulley plate 2 12 by passing a fixed shaft through the through hole 1 5 and the through hole 2 6. The pulley plate 1 11 and the pulley plate 2 12 are arranged in parallel on the flange plate 3, and the pulley plate 11 is inclined on the flange plate 3 at a deflection angle b. The inclination angle c between the wheel plate 11 and the flange plate 3 is equal to the deflection angle b. Since the pulley plate 11 and the pulley plate 2 12 are arranged in parallel, the inclination angle c between the pulley plate 2 12 and the flange plate 3 is also equal to the deflection angle b. In this way, after the guide pulley is installed on the guide pulley frame, an inclination angle of the deflection angle b is generated, thereby reducing the deviation angle between the wire rope 2 and the offset pulley on the boom 1 after the rope is unwound, thereby reducing the friction between the wire rope 2 and the offset pulley, reducing the wear of the wire rope 2, and extending the service life of the wire rope 2.

[0046] like Figure 7 、 9As shown, the rope guard rod 4 is arranged between the pulley plate 11 and the pulley plate 2 12. In this embodiment, the distance from the center of the rope guard rod 4 to the center of the through hole 1 5 minus the radius of the rope guard rod 4 is greater than the radius of the guide pulley. In this way, while ensuring that the wire rope 2 that passes around the guide pulley can be normally unloaded, it can prevent the wire rope 2 from escaping from the rope groove of the guide pulley.

[0047] like Figure 7 As shown, the distance from the bottom end of the pulley plate 2 12 to the center of the through hole 2 6 is greater than the distance from the bottom end of the pulley plate 11 to the center of the through hole 1 5. This ensures that after the pulley plate 1 11 and the pulley plate 2 12 are tilted at the deflection angle b on the flange plate 3, the through hole 1 5 and the through hole 2 6 are still coaxially arranged.

[0048] like Figure 6 、 7 As shown, one end of the rib plate 1 21 is fixedly connected to the pulley plate 11, the other end of the rib plate 1 21 is fixedly connected to the flange plate 3, one end of the rib plate 2 22 is fixedly connected to the pulley plate 2 12, and the other end of the rib plate 2 22 is fixedly connected to the flange plate 3. In this embodiment, the rib plate 1 21 and the pulley plate 1 11 and the rib plate 2 22 and the pulley plate 2 12 are fixedly connected by welding, so as to facilitate fixing the pulley plate 11 and the pulley plate 2 12 to the flange plate 3.

[0049] like Figure 4 、 10 As shown in , 11, the mounting seat includes a base plate 7, a rib plate 8, a fixing plate 9 and a connecting plate 10, the two ends of the fixing plate 9 are fixedly connected to the base plate 7 and the connecting plate 10 respectively, the base plate 7 is provided with more than two through holes three 73, one side of the rib plate 8 is fixedly connected to the fixing plate 9, the connecting plate 10 and the flange plate 3 are provided with more than two through holes four 34, the two ends of the rib plate 8 are fixedly connected to the base plate 7 and the connecting plate 10 respectively, so that the mounting seat can be fixed on the support plane a1 through the through hole three 73, and the guide pulley frame can be fixedly installed on the mounting seat through the through hole four 34. In addition, a rib plate 8 is arranged between the base plate 7 and the connecting plate 10 to enhance the stability of the connecting plate 10 on the mounting seat.

[0050] The method for determining the guide pulley angle based on the guide pulley and the wire rope includes the following specific steps:

[0051] S0 takes the center O of the slewing platform a2 as the center of the circle, and sets a calibration point on the support plane a1 in the 60°~70° angle range relative to the horizontal line a4 passing through the center of the slewing platform and close to one end of the boom. In this embodiment, the calibration point is set on the support plane a1 in the direction of 65° relative to a4, and the distance from the calibration point to the center of the slewing platform a2 is greater than the radius of the mounting hole a21 of the slewing platform a2 and less than the distance from the center O of the slewing platform a2 to the minimum value of the edge of the slewing platform, that is, the distance from the calibration point to the center O of the slewing platform a2 is set to L, the radius of the mounting hole a21 is set to r, and the slewing platform a2 is set to L. The distance from the center O of the rotating platform a2 to the edge of the rotating platform is L2. Since the edge of the rotating platform is non-circular, the value of L2 is different at different edge points. In this embodiment, the minimum value from the center O of the rotating platform a2 to the edge of the rotating platform refers to the value L1 when the L2 value is the smallest at a certain point on the edge, that is: r<L<L1, and then the mounting seat is fixed at the calibration point along the length direction of the boom 1, that is: let the fixing plate 9 be parallel to the length direction of the boom 1, and install the guide pulley frame on the mounting seat, and install the guide pulley on the guide pulley frame. In the present invention, the length direction of the boom 1 refers to Figure 2 J direction shown.

[0052] S1 passes the wire rope 2 on the winch around the pulley on the top of the tripod a3, then passes it around the guide pulley and the offset pulley of the boom in sequence and then connects to the hook.

[0053] S2 sets the contact point between the wire rope and the guide pulley near the boom as point B, the pulley on the top of the tripod as point A, the contact point between the wire rope and the offset pulley near the guide pulley when the boom amplitude is minimum as point C1, the contact point between the wire rope and the offset pulley near the guide pulley when the boom amplitude is maximum as point C2, and the contact point between the wire rope and the offset pulley near the guide pulley when the boom amplitude is at the midpoint as point C3.

[0054] S3 drives the boom 1 to swing within the amplitude variation range, and records the plane ABC1 at the minimum value of the boom 1 during the amplitude variation process, the plane ABC2 at the maximum value of the boom 1 during the amplitude variation process, and the angle a between the plane ABC1 and the plane ABC2. In this embodiment, the angle a between the plane ABC1 and the plane ABC2 is measured to be 8°;

[0055] S4 calculates the deflection angle b of the guide pulley frame based on the included angle a. In this embodiment, the calculation formula of the deflection angle b is as follows:

[0056] b=1 / 2×a

[0057] Then, plane ABC3 is constructed through points A, B, and C3, so that the angle between plane ABC1 and plane ABC3, the angle between plane ABC2 and plane ABC3, and the deflection angle b of the guide pulley frame are equal. In this embodiment, the angles of the three angles are all 4°.

[0058] S5 Re-adjust the angle of the mount, such as Figure 3 As shown, the axis of the mounting seat is made to coincide with the intersection line a3 of plane ABC3 and the support plane a1. In this embodiment, an angle c is formed between the intersection line a3 and the horizontal line a4 passing through the center of the revolving platform a2, and the angle c is 5.5°. Then, a mounting seat is provided at the intersection of the intersection line a3 passing through the center of the revolving platform a2 and the straight line a5 which is 65° to the horizontal line a4. The mounting seat is fixed to the support plane a1 by bolts, and a guide pulley frame with a deflection angle b is mounted on the mounting seat by bolts. After the guide pulley is mounted on the guide pulley frame, the wire rope passing around the guide pulley is allowed to exit at the deflection angle b.

[0059] The working principle of the present invention is as follows: a calibration point is set on the support plane, and then a guide pulley is set at the calibration point. Then, the wire rope on the winch is passed around the pulley on the top of the tripod, and then around the guide pulley and the offset pulley on the boom. The plane ABC1 at the minimum value of the boom during the amplitude change process, the plane ABC2 at the maximum value during the amplitude change process, and the angle a between the plane ABC1 and the plane ABC2 are recorded. The median value of the angle a is taken as the deflection angle b of the guide pulley frame. The angle of the mounting seat is readjusted so that the axis of the mounting seat coincides with the intersection line of the plane ABC3 and the support plane, and the guide pulley frame with the deflection angle b is installed on the mounting seat. After the guide pulley is installed on the guide pulley frame, the wire rope passing around the guide pulley is released at the deflection angle b.

[0060] In the present invention, the upper ends of the pulley plate 11 and the pulley plate 2 12 are tilted toward the inner side of the rotary platform a2 by an angle b. Figure 11 As shown, if pulley plates 1 and 2 are set vertically, the force F exerted by the wire rope 2 on the side of the guide pulley slot will act perpendicularly on the side of the guide pulley slot. In the present invention, when angle b is set, the force F is decomposed into F1 and F2. The force F1 acting perpendicularly on the side of the guide pulley slot is reduced, and the mutual wear between the wire rope 2 and the guide pulley is reduced. In the present invention, when b=1 / 2×a is used to calculate b, since the planes formed by A, B, and the offset pulley are in different positions during the boom swing process, the angle a between plane ABC1 and plane ABC2 is generally selected to determine b, avoiding the maximum extrusion wear between the wire rope and the guide pulley when the boom is at the minimum or maximum amplitude.

[0061] The axis of the mounting seat coincides with the intersection line of plane ABC3 and the support plane, such as Figure 13 As shown, 101 is a guide pulley, 102 is an offset pulley, and in the present invention, the offset pulley refers to an acute angle with the central axis of the boom. Figure 13 In the figure, the solid line part is a schematic diagram of the positions of the guide pulley, wire rope and offset pulley when the boom amplitude change is minimum, and the dotted line part is a schematic diagram of the positions of the guide pulley, wire rope and offset pulley when the boom amplitude change is minimum. It can be seen from the figure that when the position of the boom is different, the position of the wire rope is different due to the use of the offset pulley. When the position of the mounting seat is determined by the method of the present invention, it is equivalent to when the boom is in the middle position, that is, in the ABC3 plane, the friction between the wire rope and the two sides of the guide pulley is minimum, and then the ABC3 plane is used to form the ABC1 plane and the ABC2 plane on both sides. In this way, the force exerted by the wire rope on the guide pulley is basically equal when the boom amplitude change is minimum and maximum, so that the wire rope will not wear too much on one side of the guide pulley groove. Therefore, the service life of the guide pulley and the wire rope can be better extended.

Claims

1. A method for determining the angle of a guide pulley based on the guide pulley and the wire rope, characterized in that: The following steps are involved: S0 takes the center of the slewing platform as the center of the circle, sets a calibration point on the support plane in the 60°~70° angle range relative to the horizontal line passing through the center of the slewing platform and close to one end of the boom, so that the distance from the calibration point to the center of the slewing platform is greater than the radius of the slewing platform mounting hole, then fixes the mounting base at the calibration point, installs the guide pulley frame on the mounting base, and installs the guide pulley on the guide pulley frame; S1 passes the wire rope from the winch around the pulley on the top of the tripod, then around the guide pulley and the offset pulley installed on the boom, and then connects to the hook; S2 sets the contact point between the wire rope and the guide pulley near the boom as point B, the tripod top pulley as point A, the contact point between the wire rope and the offset pulley near the guide pulley when the boom is at its minimum amplitude as point C1, the contact point between the wire rope and the offset pulley near the guide pulley when the boom is at its maximum amplitude as point C2, and the contact point between the wire rope and the offset pulley near the guide pulley when the boom is at its midpoint as point C3. S3 drives the boom to rotate within the range of amplitude variation, and records the plane ABC1 when the boom is at its minimum amplitude variation, the plane ABC2 when the boom is at its maximum amplitude variation, and the angle a between the planes ABC1 and ABC2; S4 calculates the deflection angle b of the guide pulley frame through the included angle a. The calculation formula of the deflection angle b is as follows: b=1 / 2×a, Then draw plane ABC3 through points A, B, and C3 so that the angle between plane ABC1 and plane ABC3, the angle between plane ABC2 and plane ABC3, and the deflection angle b of the guide pulley frame are equal; S5 readjusts the angle of the mounting seat so that the axis of the mounting seat coincides with the intersection line of plane ABC3 and the support plane, and installs the guide pulley frame with a deflection angle b on the mounting seat. After the guide pulley is installed on the guide pulley frame, the wire rope passing around the guide pulley is released at a deflection angle b.

2. The method for determining the angle of a guide pulley based on the guide pulley and the wire rope according to claim 1, characterized in that: The guide pulley frame includes a flange plate, pulley plate 1, pulley plate 2, a rope guard rod and two or more rib plate 1 and rib plate 2. Pulley plate 1 and pulley plate 2 are arranged parallel to each other on the flange plate. Pulley plate 1 is provided with a through hole 1, pulley plate 2 is provided with a through hole 2, and the rope guard rod is arranged between pulley plate 1 and pulley plate 2.

3. The method for determining the guide pulley angle based on the guide pulley and the wire rope according to claim 2, characterized in that: The pulley plate 1 is tilted at an inclination angle b on the flange plate, and an inclination angle c between the pulley plate 1 and the flange plate is equal to the inclination angle b.

4. The method for determining the angle of a guide pulley based on the guide pulley and the wire rope according to claim 2, characterized in that: The distance from the center of the rope guard rod to the center of the through hole minus the radius of the rope guard rod is greater than the radius of the guide pulley.

5. The method for determining the guide pulley angle based on the guide pulley and the wire rope according to claim 2, characterized in that: The distance from the bottom end of the pulley plate 2 to the center of the through hole 2 is greater than the distance from the bottom end of the pulley plate 1 to the center of the through hole 1.

6. The method for determining the angle of a guide pulley based on the guide pulley and the wire rope according to claim 2, characterized in that: One end of the rib plate 1 is fixedly connected to the pulley plate 1, and the other end of the rib plate 1 is fixedly connected to the flange plate. One end of the rib plate 2 is fixedly connected to the pulley plate 2, and the other end of the rib plate 2 is fixedly connected to the flange plate.

7. The method for determining the angle of a guide pulley based on the guide pulley and the wire rope according to claim 1, characterized in that: The mounting base includes a base plate, a rib plate, a fixing plate and a connecting plate. The two ends of the fixing plate are fixedly connected to the base plate and the connecting plate respectively. The base plate is provided with more than two through holes three. One side of the rib plate is fixedly connected to the fixing plate. The connecting plate and the flange plate are both provided with more than two through holes four. The two ends of the rib plate are fixedly connected to the base plate and the connecting plate respectively.

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