Pulley storage device, lifting equipment and pulley storage method

Abstract

This invention relates to the field of hoisting equipment technology, and discloses a pulley storage device, hoisting equipment, and pulley storage method. The device stores a movable pulley assembly and includes: a storage frame with a storage groove extending along a first direction, one end of the storage frame in the first direction being an insertion end, and the insertion port of the storage groove located at the insertion end; and a position detection component disposed on the storage frame and having a detection end located on the side of the storage frame near the insertion end. This invention provides a position detection component on the storage frame, with the detection end located on the side of the insertion port of the storage groove. Before the movable pulley assembly contacts the storage groove, the position of the movable pulley assembly is detected. When the movable pulley assembly reaches the detection position, the position detection component sends a signal to stop the component driving the movable pulley assembly from working. At this time, the position of the movable pulley assembly can be adjusted. Once the movable pulley assembly is aligned with the insertion port, it can continue to be driven to move into the storage groove, effectively preventing the movable pulley assembly from colliding with the insertion port.

Description

Technical Field

[0001] This invention relates to the field of hoisting equipment technology, specifically to a pulley storage device, hoisting equipment, and a pulley storage method. Background Technology

[0002] A superlift device is an additional system on a crane that significantly increases the crane's maximum safe working load, enabling the crane to provide additional lifting capacity beyond normal operation. The working principle of a superlift device is generally to change the crane's torque, thereby allowing the crane to more effectively distribute and manage the load to achieve greater lifting capacity.

[0003] Currently, existing superlift devices include a pulley assembly consisting of a fixed pulley and a movable pulley. The fixed pulley is connected to the lifting equipment via a pulley frame, which has a storage slot for the movable pulley. When the superlift device is not in operation, the movable pulley is stored in the storage slot for easy fixation. The movable pulley is relatively heavy, and it is usually driven into the storage slot by the hoisting assembly of the superlift device. However, when the existing hoisting assembly drives the movable pulley into the storage slot, the movable pulley is prone to colliding with the opening of the storage slot during movement. The pulley frame is prone to deformation and failure under frequent collisions, which in turn makes it impossible to fix and store the movable pulley. Summary of the Invention

[0004] In view of this, the present invention provides a pulley storage device, a boom assembly, and a pulley storage method to solve the problem that existing pulley frames are prone to failure due to collisions with moving pulleys.

[0005] In a first aspect, the present invention provides a pulley storage device for storing a movable pulley assembly, comprising: a storage rack having a storage groove extending along a first direction, one end of the storage rack in the first direction being an insertion end, and the insertion port of the storage groove being located at the insertion end; a position detection component disposed on the storage rack and having a detection end, the detection end being located on the side of the storage rack near the insertion end, and forming a detection position therefor detecting the position of the movable pulley assembly, the space between the detection position and the insertion port forming a buffer space.

[0006] Beneficial effects: By installing a position detection component on the storage rack, with its detection end positioned on the insertion port side of the storage slot, this type of position detection component can detect the position of the movable pulley assembly before it contacts the storage slot. Once the movable pulley assembly reaches the detection position, the position detection component sends a signal to stop the component driving the movable pulley assembly. At this point, the position of the movable pulley assembly can be adjusted. After the movable pulley assembly is aligned with the insertion port, it can continue to be driven to move into the storage slot. This effectively avoids collisions between the movable pulley assembly and the insertion port, effectively solving the problem that existing pulley racks are prone to failure due to collisions with the movable pulley.

[0007] In one alternative implementation, the storage rack is provided with a mounting base, and the position detection component is movably mounted on the mounting base.

[0008] Beneficial effects: When position detection is not required, the position detection component can be moved to a stored state. When position detection is required again, the position detection component can be moved to the detection position. The structure is simple and reliable, which can avoid the problem of poor flexibility caused by the fixed position of the position detection component.

[0009] In one alternative embodiment, the mounting base is provided with a locking structure that engages with the position detection component.

[0010] Beneficial effects: The locking structure enables the position detection component to remain in its current state more stably and reliably, preventing the position detection component from moving arbitrarily and causing inaccurate position detection.

[0011] In one optional embodiment, the position detection assembly includes a movable rod and a detection element. The movable rod is movably disposed on the mounting base along a first direction and extends along the first direction and has a receiving cavity inside. The detection element is disposed at one end of the movable rod near the insertion end and forms a detection end. The wire harness of the detection element passes through the receiving cavity.

[0012] Beneficial effects: The overall structure of the position detection component is simple and reliable. The moving rod can extend outward to form an installation platform, which not only allows the detection component to be detected at the detection position, but also protects the wiring harness of the detection component, preventing the wiring harness from moving randomly and interfering with external components.

[0013] In one alternative embodiment, the detection element is a limit switch having a contact extending along a second direction for contacting the movable pulley assembly to detect the position of the movable pulley assembly.

[0014] Beneficial effects: Limit switches detect the position of the movable pulley assembly through physical contact, which not only makes the detection results more stable and reliable, but also makes the structure simpler and more durable, and easier to manufacture and assemble.

[0015] In one optional embodiment, the movable pulley assembly includes a pulley frame and a movable pulley disposed on the pulley frame. A limit rod is provided on the pulley frame. The storage rack includes storage beams spaced apart along a third direction. The space between two storage beams forms a storage space. Each storage beam is provided with a storage slot. Each storage beam is provided with a position detection component.

[0016] Beneficial effects: Since the pulley assembly needs to be stored in both storage beams at the same time, the position detection component can detect the two positions of the limit rod, making the detection results more stable and reliable.

[0017] Secondly, the present invention also provides a lifting device, comprising: a boom frame; a movable pulley assembly; and the aforementioned pulley storage device, wherein the storage frame of the pulley storage device is assembled and connected to the boom frame, and the storage frame is used to store the movable pulley assembly.

[0018] Thirdly, the present invention also provides a pulley storage method, which utilizes the above-mentioned pulley storage device and includes:

[0019] The drive component moves the movable pulley assembly toward the storage rack; the position detection component continuously detects at the detection position; the position detection component detects that the movable pulley assembly has reached the detection position; the drive component stops moving the movable pulley assembly; the position of the movable pulley assembly is adjusted and aligned with the insertion port of the storage rack; the drive component moves the movable pulley assembly toward the storage rack and into the storage slot of the storage rack.

[0020] Beneficial effects: This pulley storage method uses a position detection component to detect the position of the movable pulley assembly before it enters the storage slot, causing the movable pulley assembly to stop near the insertion port. This allows for adjustment of the position of the movable pulley assembly to align with the insertion port, effectively preventing collisions between the movable pulley assembly and the insertion port.

[0021] In one alternative embodiment, the pulley storage device further includes a fixed pulley, which is rotatably mounted on the storage rack. The drive assembly includes a winch structure and a drive rope, which is driven by the winch structure to pull the movable pulley assembly to move.

[0022] The steps of moving the movable pulley assembly toward the storage rack by driving the drive assembly include: using the fixed pulley as the fulcrum; passing the drive rope through the fixed pulley to change the direction of the drive rope; fixing the drive rope after passing through the fixed pulley around the movable pulley assembly; and pulling the drive rope through the winch structure to move the movable pulley assembly toward the storage rack.

[0023] Beneficial effects: With this method of winding the drive rope, the drive rope first passes through the fixed pulley and then through the movable pulley assembly. When the drive rope is pulled, the tension of the drive rope can be changed to the first direction by the fixed pulley, which reduces the angle between the moving direction of the drive rope and the moving pulley assembly, and reduces the swaying of the movable pulley assembly when the drive rope is pulled.

[0024] In one alternative embodiment, the storage rack is provided with a mounting base, and the position detection component is movably mounted on the mounting base; after the step of adjusting the position of the movable pulley component and aligning the movable pulley component with the insertion port of the storage rack, the method further includes: moving the position detection component in a direction away from the movable pulley component to a preset storage position.

[0025] Beneficial effects: This method of storing the position detection component can not only prevent the position detection component from affecting the movement of the movable pulley component, but also prevent the position detection component from being damaged during the continuous movement of the movable pulley component. Attached Figure Description

[0026] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0027] Figure 1 This is a front view of a pulley storage device according to an embodiment of the present invention when the position detection component detects the movable pulley component;

[0028] Figure 2 for Figure 1 Enlarged schematic diagram of point A of the pulley storage device shown;

[0029] Figure 3 for Figure 1 The front view of the pulley storage device after it is assembled with the movable pulley assembly;

[0030] Figure 4 for Figure 1 A three-dimensional schematic diagram of the pulley storage device shown.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1. Storage rack; 101. Storage slot; 1011. Insertion port; 102. Insertion end; 103. Mounting base; 104. Locking structure; 105. Storage beam; 106. Fixed pulley; 107. Cable clamp; 108. Fixing component;

[0033] 2. Position detection component; 201. Detection end; 202. Detection position; 203. Buffer space; 204. Moving rod; 205. Detection element; 2051. Wiring harness; 2052. Contact element;

[0034] 3. Movable pulley assembly; 301. Pulley frame; 3011. Limiting rod; 302. Movable pulley;

[0035] 4. Crane boom; 5. Drive rope. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] The following combination Figures 1 to 4 The following describes embodiments of the present invention.

[0038] According to an embodiment of the present invention, a pulley storage device is provided for storing a movable pulley assembly 3. The pulley storage device includes a storage rack 1 and a position detection component 2. The storage rack 1 has a storage groove 101 extending along a first direction. One end of the storage rack 1 in the first direction is an insertion end 102, and the insertion port 1011 of the storage groove 101 is located at the insertion end 102. The position detection component 2 is disposed on the storage rack 1 and has a detection end 201. The detection end 201 is located on the side of the storage rack 1 near the insertion end 102, and a detection position 202 for detecting the position of the movable pulley assembly 3 is formed therein. The space between the detection position 202 and the insertion port 1011 forms a buffer space 203.

[0039] The pulley storage device of this embodiment has a position detection component 2 on the storage rack 1. Its detection end 201 is located on the side of the insertion port 1011 of the storage groove 101. This type of position detection component 2 can detect the position of the movable pulley component 3 before it comes into contact with the storage groove 101. When the movable pulley component 3 reaches the detection position 202, the position detection component 2 can send a signal to stop the component driving the movable pulley component 3. At this time, the position of the movable pulley component 3 can be adjusted. When the movable pulley component 3 is aligned with the insertion port 1011, the movable pulley component 3 can continue to be driven to move into the storage groove 101. This can effectively avoid the movable pulley component 3 from colliding with the insertion port 1011, and effectively solve the problem that the existing pulley frame is prone to failure due to collision with the movable pulley.

[0040] It should be noted that the first direction refers to Figure 1 and Figure 4 The first direction indicated by the middle arrow, the second direction refers to... Figure 1 and Figure 4 The "second direction" indicated by the middle arrow refers to the third direction. Figure 4 The middle arrow points to the "third direction".

[0041] In related technologies, to prevent the moving pulley from entering the storage slot of the pulley frame and then continuing to move the pulley, causing it to collide with the inner wall of the storage slot, a common measure is to install a detection component on the inner wall of the storage slot. When the moving pulley is detected entering the designated position of the storage slot, a signal is sent to stop the hoisting component. However, in actual operation, the moving pulley often deviates from the position of the slot opening before entering the storage slot. As the moving pulley continues to move, it will collide with the slot opening, which will not only damage the slot opening but also damage the components related to the moving pulley. Installing a detection component on the inner wall of the storage slot cannot prevent the moving pulley from damaging the slot opening, resulting in frequent replacement of the pulley frame during long-term use of the lifting device.

[0042] The pulley storage device of this embodiment can not only detect the position of the movable pulley assembly 3 before it comes into contact with the storage rack 1, and stop the movable pulley assembly 3 from moving in advance, but also leave a buffer space 203 between the detection position 202 and the insertion port 1011. When the kinetic energy of the movable pulley assembly 3 decreases at the detection position 202, it will continue to move a short distance toward the storage rack 1. The existence of the buffer space 203 can further improve the anti-collision reliability of the storage rack 1 and prevent the storage rack 1 from continuing to move under inertia and coming into contact with the storage rack 1.

[0043] In addition, since the pulley assembly in the super-lift device usually consists of more than just the movable pulley assembly 3, the storage rack 1 is also equipped with a fixed pulley 106.

[0044] In one possible implementation, the storage rack 1 is provided with a mounting base 103, and the position detection component 2 is movably mounted on the mounting base 103. When position detection is not required, the position detection component 2 can be moved to a storage state. When the position detection step is required again, the position detection component 2 can be moved to the detection position. The structure is simple and reliable, and can avoid the problem of poor flexibility of use caused by the fixed position of the position detection component 2.

[0045] It should be noted that in order to detect whether the position detection component 2 has reached the detection position 202, the detection end 201 of the position detection component 2 usually needs to extend outward from the storage rack 1 to the detection position 202. However, the position detection component 2 can be moved and stored, and the position detection component 2 can be changed from the extended state to the stored state. This can effectively avoid the problem of easy collision and interference with external components when the detection end 201 is continuously in the extended state.

[0046] Specifically, there is no limitation on the movable method of the position detection component 2. It can be translated along a preset direction on the mounting base 103, or it can swing or rotate on the inner mounting base 103, as long as the detection end 201 of the position detection component 2 can be retracted.

[0047] Preferably, such as Figure 1 As shown, the mounting base 103 is disposed on the surface of the storage rack 1 in the first direction.

[0048] In addition, there are no restrictions on the movement drive method of the position detection component 2. It can be driven by a drive cylinder, driven by a drive component composed of a motor and gears, or moved manually without the operator's intervention. The choice can be made flexibly according to the requirements.

[0049] In one possible implementation, the mounting base 103 is provided with a locking structure 104, which locks with the position detection component 2. The locking structure 104 enables the position detection component 2 to be in the current state more stably and reliably, preventing the position detection component 2 from moving arbitrarily and causing inaccurate position detection.

[0050] The specific form of the locking structure 104 is not limited. It can be fixed in position by means of buckle, positioning pin, bolt, etc., through insertion or contact, or it can be a blocking structure such as a baffle to restrict the movement of the position detection component 2.

[0051] Specifically, the mounting base 103 is provided with a mounting hole, and the position detection component 2 is movably inserted into the mounting hole. The locking structure 104 is a locking pin. The mounting base 103 is provided with a through hole for the locking pin to pass through, and the position detection component 2 is provided with at least one mating hole for cooperating with the locking pin. The mounting hole can not only restrict the radial movement of the position detection component 2, but also guide and constrain the movement process of the position detection component 2. The locking structure 104 is simple and reliable in structure and easy to process and manufacture.

[0052] Preferably, the locking structure 104 is a pin.

[0053] In one possible implementation, the position detection component 2 includes a movable rod 204 and a detection element 205. The movable rod 204 is movably disposed on the mounting base 103 along a first direction. The movable rod 204 extends along the first direction and has a receiving cavity inside. The detection element 205 is disposed at one end of the movable rod 204 near the insertion end 102 and forms a detection end 201. The wire harness 2051 of the detection element 205 passes through the receiving cavity. The overall structure of the position detection component 2 is simple and reliable. The movable rod 204 can extend outward to form a mounting platform, which not only enables the detection element 205 to perform detection at the detection position 202, but also protects the wire harness 2051 of the detection element 205, preventing the wire harness 2051 from moving arbitrarily and interfering with external components.

[0054] The specific form of the detection element 205 is not limited; it can be a proximity switch, position switch, distance sensor, etc., as long as it can detect the arrival of the movable pulley assembly 3 at the detection position 202.

[0055] In one possible implementation, the detection element 205 is a limit switch. The detection element 205 has a contact element 2052 extending along the second direction. The contact element 2052 is used to contact the movable pulley assembly 3 to detect the position of the movable pulley assembly 3. The limit switch detects the position of the movable pulley assembly 3 by physical contact, which not only makes the detection results more stable and reliable, but also makes the structure simpler and more durable, and is easy to manufacture and assemble.

[0056] Specifically, to prevent the contact element 2052 from contacting the moving pulley assembly 3 and being damaged by the continuous movement of the passive pulley assembly 3, the detection spring of the contact element 2052 can be bent by the moving pulley assembly 3, thereby improving the detection reliability.

[0057] In addition, such as Figure 2 and Figure 3 As shown, the movable rod 204 can also rotate around its own circumference on the mounting base 103. The rotation of the movable rod 204 can cause the contact member 2052 of the detection member 205 to swing. When the position of the movable pulley assembly 3 is adjusted and can continue to move, the movable rod 204 is rotated to make the contact member 2052 swing toward the side away from the movable pulley assembly 3. This allows the contact member 2052 to actively avoid the movement trajectory of the movable pulley assembly 3 and prevent the movable pulley assembly 3 from continuing to move and causing damage to the contact member 2052.

[0058] In one possible implementation, the movable pulley assembly 3 includes a pulley frame 301 and a movable pulley 302 disposed on the pulley frame 301. A limit rod 3011 is provided on the pulley frame 301. The storage rack 1 includes storage beams 105 spaced apart along a third direction. The space between two storage beams 105 forms a storage space. Each storage beam 105 is provided with a storage slot 101. Each storage beam 105 is provided with a position detection component 2. Since the movable pulley assembly 3 needs to be stored, the limit rod 3011 of the pulley frame 301 needs to enter the two storage beams 105 at the same time, this position detection component 2 setting method can detect the two positions of the limit rod 3011, and the detection result is more stable and reliable.

[0059] When the movable pulley assembly 3 rotates, causing an angle between the axis of the limit rod 3011 and a third direction, it is possible that only one of the position detection components 2 will detect that the limit rod 3011 has reached the detection position 202. At this time, a prompt can be issued to the staff, indicating that the limit rod is swinging and can be corrected in time.

[0060] In one possible implementation, at least one wire clamp 107 is also provided on the side wall of the storage rack 1. After the wire harness 2051 of the detection element 205 passes through the moving rod 204, it needs to be connected to the corresponding electrical connection position. The wire clamp 107 can constrain the wire harness 2051 and prevent the wire clamp 107 from swinging randomly. A coiling bracket is also provided on the side wall of the storage rack 1. When the wire harness 2051 is separated from the plug and the electrical connection position, the excess wire harness 2051 can be coiled on the coiling bracket for storage.

[0061] In addition, the storage rack 1 is also provided with a fixing member 108 in the storage slot 101. The fixing member 108 is a positioning pin. When the limiting rod 3011 has not reached the designated position of the storage slot 101, the fixing member 108 is in the detached state. When the limiting rod 3011 reaches the designated position of the storage slot 101, the fixing member 108 is installed. The fixing member 108 forms a blocking structure on the side of the limiting rod 3011 near the insertion port 1011 of the storage slot 101 to prevent the limiting rod 3011 from coming out of the storage slot 101.

[0062] According to an embodiment of the present invention, in another aspect, a lifting device is provided, which includes: a boom frame 4, a movable pulley assembly 3, and the aforementioned pulley storage device, wherein a storage frame 1 of the pulley storage device is assembled and connected to the boom frame 4, and the storage frame 1 is used to store the movable pulley assembly 3.

[0063] Specifically, the location where the boom 4 is assembled with the storage rack 1 has an electrical connection plug-in position, and the wiring harness 2051 of the detection component 205 needs to be connected to the electrical connection plug-in position.

[0064] According to an embodiment of the present invention, in another aspect, a pulley storage method is provided, which utilizes the above-described pulley storage device and includes:

[0065] The drive component drives the pulley assembly 3 to move toward the storage rack 1;

[0066] The detection end 201 of the position detection component 2 continuously detects at the detection position 202;

[0067] Position detection component 2 detects that the movable pulley assembly 3 has reached detection position 202;

[0068] The drive component stops moving the pulley assembly 3;

[0069] Adjust the position of the movable pulley assembly 3 and align it with the insertion port 1011 of the storage rack 1;

[0070] The drive component drives the movable pulley assembly 3 to move toward the storage rack 1, and the movable pulley assembly 3 enters the storage slot 101 of the storage rack 1.

[0071] This pulley storage method allows the position detection component 2 to detect the position of the movable pulley component 3 before it enters the storage slot 101, so that the movable pulley component 3 stops near the insertion port 1011. This facilitates the adjustment of the position of the movable pulley component 3 so that it is aligned with the insertion port 1011, effectively preventing the movable pulley component 3 from colliding with the insertion port 1011.

[0072] In one possible implementation, the pulley storage device also has a fixed pulley 106, which is rotatably mounted on the storage rack 1. The drive assembly includes a winch structure and a drive rope 5, which is driven by the winch structure to pull the movable pulley assembly 3 to move.

[0073] The steps of moving the pulley assembly 3 toward the storage rack 1 by driving the drive assembly include:

[0074] Use the fixed pulley 106 as the fulcrum;

[0075] The drive rope 5 is passed through the fixed pulley 106 to change the direction of the drive rope 5.

[0076] The drive rope 5, which passes through the fixed pulley 106, is fixed after passing over the movable pulley assembly 3;

[0077] The drive rope 5 is pulled by the winch structure to move the pulley assembly 3 toward the storage rack 1.

[0078] like Figure 1 and Figure 3As shown, through this winding method of the drive rope 5, the drive rope 5 first passes through the fixed pulley 106 and then through the movable pulley assembly 3. When the drive rope 5 is pulled, the tension of the drive rope 5 can be changed to the first direction by the fixed pulley 106, reducing the angle between the drive rope 5 and the moving direction of the movable pulley assembly 3, and reducing the swing of the movable pulley assembly 3 when the drive rope 5 is pulled.

[0079] Specifically, the movable pulley assembly 3 includes a pulley frame 301 and a movable pulley 302 disposed on the pulley frame 301. The drive rope 5 passes through the fixed pulley 106 first and then the movable pulley 302. If the drive rope 5 passes through the movable pulley 302 first and then the fixed pulley 106, the drive rope 5 will have an angle with the first direction. If the movable pulley 302 is pulled directly, the movable pulley assembly 3 will tend to swing to one side, which will cause the movable pulley assembly 3 to collide with the insertion port 1011 of the storage rack 1. The pulley storage method of this embodiment can avoid this problem.

[0080] In one possible implementation, the storage rack 1 is provided with a mounting base 103, and the position detection component 2 is movably disposed on the mounting base 103.

[0081] After adjusting the position of the movable pulley assembly 3 and aligning it with the insertion port 1011 of the storage rack 1, the following steps are also included:

[0082] Move the position detection component 2 away from the movable pulley component 3 to the preset storage position.

[0083] This method of storing the position detection component 2 can not only prevent the position detection component 2 from affecting the movement of the movable pulley assembly 3, but also prevent the position detection component 2 from being damaged during the continuous movement of the movable pulley assembly 3.

[0084] Although embodiments of the invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A pulley storage device for storing a movable pulley assembly (3), characterized in that, include: A storage rack (1) has a storage groove (101) extending along a first direction. One end of the storage rack (1) in the first direction is an insertion end (102), and the insertion port (1011) of the storage groove (101) is located at the insertion end (102). A position detection component (2) is disposed on the storage rack (1) and has a detection end (201). The detection end (201) is located on the side of the storage rack (1) near the insertion end (102), and a detection position (202) for detecting the position of the movable pulley assembly (3) is formed on the side of the storage rack (1) near the insertion end (102). The space between the detection position (202) and the insertion port (1011) forms a buffer space (203). The position detection component (2) includes a movable rod (204) and a detection element (205). The movable rod (204) is movably disposed on the mounting base (103) along a first direction. The movable rod (204) extends along the first direction and has a receiving cavity inside. The detection element (205) is disposed at one end of the movable rod (204) near the insertion end (102) and forms the detection end (201). The wire harness (2051) of the detection element (205) passes through the receiving cavity.

2. The pulley storage device according to claim 1, characterized in that, The storage rack (1) is provided with a mounting base (103), and the position detection component (2) is movably mounted on the mounting base (103).

3. The pulley storage device according to claim 2, characterized in that, The mounting base (103) is provided with a locking structure (104), which is locked in cooperation with the position detection component (2).

4. The pulley storage device according to claim 1, characterized in that, The detection element (205) is a limit switch, and the detection element (205) has a contact element (2052) extending along a second direction. The contact element (2052) is used to contact the movable pulley assembly (3) to detect the position of the movable pulley assembly (3).

5. The pulley storage device according to any one of claims 1 to 3, characterized in that, The movable pulley assembly (3) includes a pulley frame (301) and a movable pulley (302) disposed on the pulley frame (301). A limit rod (3011) is provided on the pulley frame (301). The storage rack (1) includes storage beams (105) spaced apart along a third direction. The space between two storage beams (105) forms a storage space. Each storage beam (105) is provided with a storage groove (101). Each storage beam (105) is provided with a position detection component (2).

6. A lifting device, characterized in that, include: Crane boom (4); Movable pulley assembly (3); According to any one of claims 1 to 5, the pulley storage device has a storage rack (1) that is assembled and connected to the boom frame (4), and the storage rack (1) is used to store the movable pulley assembly (3).

7. A method for storing pulleys, using the pulley storage device according to claim 1, characterized in that, include: The drive assembly drives the pulley assembly (3) to move toward the storage rack (1); The position detection component (2) continuously detects at the detection position (202) through the detection end (201); The position detection component (2) detects that the movable pulley assembly (3) has reached the detection position (202); The drive component stops driving the movable pulley assembly (3) to move; Adjust the position of the movable pulley assembly (3) and align the movable pulley assembly (3) with the insertion port (1011) of the storage rack (1); The drive assembly drives the movable pulley assembly (3) to move toward the storage rack (1) and causes the movable pulley assembly (3) to enter the storage slot (101) of the storage rack (1).

8. The pulley storage method according to claim 7, characterized in that, The pulley storage device also has a fixed pulley (106), which is rotatably mounted on the storage rack (1). The drive assembly includes a winch structure and a drive rope (5). The drive rope (5) is driven by the winch structure to pull the movable pulley assembly (3) to move. The step of moving the movable pulley assembly (3) toward the storage rack (1) by the drive assembly includes: The fixed pulley (106) is used as the fulcrum for pulling; The drive rope (5) is passed through the fixed pulley (106) to change the pulling direction of the drive rope (5); The drive rope (5) passing through the fixed pulley (106) is fixed after passing over the movable pulley assembly (3); The drive rope (5) is pulled by the winch structure to move the pulley assembly (3) toward the storage rack (1).

9. The pulley storage method according to claim 7, characterized in that, The storage rack (1) is provided with a mounting base (103), and the position detection component (2) is movably disposed on the mounting base (103); After adjusting the position of the movable pulley assembly (3) and aligning it with the insertion port (1011) of the storage rack (1), the method further includes: Move the position detection component (2) to the preset storage position in a direction away from the movable pulley component (3).

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