Pulley storage device, hoisting equipment and pulley storage method

Abstract

The invention relates to the technical field of hoisting equipment, and discloses a pulley storage device, hoisting equipment, a pulley storage method and a storage movable pulley assembly.The pulley storage device comprises a storage frame, a pulley storage device and a pulley storage device, the storage frame is provided with a storage groove extending in the first direction, one end of the storage frame in the first direction is an insertion end, and an insertion opening of the storage groove is located in the insertion end; the position detection assembly is arranged on the storage frame and provided with a detection end, and the detection end is located on the side, close to the insertion end, of the storage frame. The position detection assembly is arranged on the storage frame, the detection end is arranged on the side, close to the insertion opening, of the storage groove, and the position of the movable pulley assembly is detected before the movable pulley assembly makes contact with the storage groove; when the movable pulley assembly reaches the detection position, the position detection assembly can send out a signal to enable the assembly driving the movable pulley assembly to stop working, at the moment, the position of the movable pulley assembly can be adjusted, and when the movable pulley assembly is aligned with the insertion opening, the movable pulley assembly is continuously driven to move into the containing groove. And collision between the movable pulley assembly and the insertion opening can be effectively avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of hoisting equipment, and in particular to a pulley storage device, a lifting device and a pulley storage method. Background Art

[0002] A superlift is an additional system on a crane that can significantly increase the crane's maximum safe working load, enabling the crane to provide additional lifting capacity beyond normal operation. The superlift generally works by changing the crane's moment, allowing the crane to more efficiently distribute and manage the load to achieve greater lifting capacity.

[0003] At present, the pulley assembly in the existing superlifting device includes a fixed pulley and a movable pulley. The fixed pulley is connected to the lifting equipment through a pulley frame. The pulley frame is provided with a storage groove for storing the movable pulley. When the superlifting device does not need to work, the movable pulley is stored in the storage groove to fix the movable pulley. The movable pulley is heavy, and is usually driven into the storage groove by the winch assembly of the superlifting device. When the existing winch assembly drives the movable pulley into the storage groove, the movable pulley is prone to collide with the notch of the storage groove during movement. The pulley frame is prone to deformation and failure under frequent collisions, which makes it impossible to fix the movable pulley. Summary of the invention

[0004] In view of this, the present invention provides a pulley storage device, a suspension arm assembly and a pulley storage method to solve the problem that the existing pulley frame is easily damaged by the collision of the movable pulley and fails.

[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 slot extending along a first direction, one end of the storage rack in the first direction being an insertion end, and an insertion port of the storage slot being located at the insertion end; a position detection assembly, arranged on the storage rack and having a detection end, the detection end being located on a side of the storage rack close to the insertion end, and a detection position for detecting the position of the movable pulley assembly being formed thereat, and the space between the detection position and the insertion port forming a buffer space.

[0006] Beneficial effect: A position detection component is arranged on the storage rack, and its detection end is arranged on one side of the insertion port of the storage slot. This type of position detection component can detect the position of the movable pulley assembly before the movable pulley assembly contacts the storage slot. When the movable pulley assembly reaches the detection position, the position detection component can send a signal to stop the component driving the movable pulley assembly. At this time, the position of the movable pulley assembly can be adjusted. When the movable pulley assembly is aligned with the insertion port, the movable pulley assembly is continued to be driven to move into the storage slot, which can effectively avoid the collision between the movable pulley assembly and the insertion port, and effectively solves the problem that the existing pulley rack is easily failed due to the collision of the movable pulley.

[0007] In an optional embodiment, a mounting seat is provided on the storage rack, and the position detection component is movably disposed on the mounting seat.

[0008] Beneficial effect: When position detection is not needed, the position detection component can be changed to the storage state by moving the position detection component. When the position detection step is needed again, the position detection component can be moved to the detection position. The structure is simple and reliable, and can avoid the problem of poor flexibility in use due to the fixed position of the position detection component.

[0009] In an optional embodiment, a locking structure is provided on the mounting seat, and the locking structure is locked with the position detection component.

[0010] Beneficial effect: The locking structure can make the position detection component more stable and reliable in the current state, preventing the position detection component from moving at will and causing inaccurate position detection.

[0011] In an optional embodiment, the position detection component includes a moving rod and a detection member. The moving rod is movably arranged on a mounting seat along a first direction. The moving rod extends along the first direction and has an accommodating cavity inside. The detection member is arranged at one end of the moving rod close to the insertion end to form a detection end. The wiring harness of the detection member is passed through the accommodating cavity.

[0012] Beneficial effects: The overall structure of the position detection component is simple and reliable, and the moving rod can extend outward to form a mounting platform, which not only enables the detection part to be detected at the detection position, but also protects the wiring harness of the detection part to prevent the wiring harness from moving arbitrarily and interfering with external components and failing.

[0013] In an optional embodiment, the detection member is a travel switch, and the detection member has a contact member extending along the second direction, and the contact member is used to contact the movable pulley assembly to detect the position of the movable pulley assembly.

[0014] Beneficial effects: The travel switch detects the position of the movable pulley assembly by means of physical contact, which not only makes the detection result more stable and reliable, but also has a simpler and more durable structure, and is easy to manufacture and assemble.

[0015] In an optional embodiment, the movable pulley assembly includes a pulley frame and a movable pulley arranged on the pulley frame, a limit rod is arranged on the pulley frame, the storage frame includes storage beams arranged at intervals along a third direction, the space between the two storage beams forms a storage space, each storage beam is provided with a storage groove, and each storage beam is provided with a position detection assembly.

[0016] Beneficial effect: Since the limit rod of the pulley frame needs to enter the two storage beams at the same time when the movable pulley assembly is stored, this position detection component setting method can detect the two positions of the limit rod, and the detection result is more stable and reliable.

[0017] In a second aspect, the present invention further provides a lifting device, which includes: a boom frame; a movable pulley assembly; the above-mentioned pulley storage device, wherein a 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] In a third aspect, the present invention further provides a pulley storage method, using the above-mentioned pulley storage device, which comprises:

[0019] The movable pulley assembly is driven to move toward the storage rack by the driving assembly; the detection end of the position detection assembly continuously detects at the detection position; the position detection assembly detects that the movable pulley assembly has reached the detection position; the driving assembly stops driving the movable pulley assembly to move; the position of the movable pulley assembly is adjusted, and the movable pulley assembly is aligned with the insertion opening of the storage rack; the movable pulley assembly is driven to move toward the storage rack by the driving assembly, and the movable pulley assembly enters the storage slot of the storage rack.

[0020] Beneficial effect: This pulley storage method can perform position detection before the movable pulley assembly enters the storage groove through the position detection component, so that the movable pulley assembly stops at a position close to the insertion port, so as to facilitate the adjustment of the position of the movable pulley assembly to align it with the insertion port, which can effectively avoid the collision between the movable pulley assembly and the insertion port.

[0021] In an optional embodiment, the pulley storage device further comprises a fixed pulley, which is rotatably arranged on the storage rack, and the driving assembly comprises a winch structure and a driving rope, and the driving rope is driven by the winch structure to pull the movable pulley assembly to move;

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

[0023] Beneficial effect: Through this drive rope winding method, the drive rope first passes through the fixed pulley and then passes through the movable pulley assembly. When the drive rope is pulled, the tension of the drive rope can be changed to the first direction through the fixed pulley, thereby reducing the angle between the drive rope and the moving direction of the movable pulley assembly, and reducing the swing of the movable pulley assembly when the drive rope is pulled.

[0024] In an optional embodiment, a mounting seat is provided on the storage rack, and the position detection component is movably provided on the mounting seat; after the step of adjusting the position of the movable pulley assembly and aligning the movable pulley assembly with the insertion port of the storage rack, it also includes: moving the position detection component in a direction away from the movable pulley assembly to a preset storage position.

[0025] Beneficial effect: This step of storing the position detection component can not only prevent the position detection component from affecting the moving process of the movable pulley component, but also prevent the position detection component from being damaged during the continuous movement of the movable pulley component. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 A front view of a position detection assembly of a pulley storage device according to an embodiment of the present invention when detecting a movable pulley assembly;

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

[0029] Figure 3 for Figure 1 The front view of the pulley storage device shown after being matched with the movable pulley assembly;

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

[0031] Description of reference numerals:

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

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

[0034] 3. movable pulley assembly; 301. pulley frame; 3011. limit rod; 302. movable pulley;

[0035] 4. Boom frame; 5. Driving rope. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0037] Combine the following Figures 1 to 4 , describing an embodiment of the present invention.

[0038] According to an embodiment of the present invention, on the one hand, a pulley storage device is provided for storing a movable pulley assembly 3, the pulley storage device comprising: a storage rack 1 and a position detection assembly 2, the storage rack 1 having a storage slot 101 extending along a first direction, one end of the storage rack 1 in the first direction being an insertion end 102, an insertion port 1011 of the storage slot 101 being located at the insertion end 102; the position detection assembly 2 is arranged on the storage rack 1 and has a detection end 201, the detection end 201 is located on a side of the storage rack 1 close to the insertion end 102, and a detection position 202 for detecting the position of the movable pulley assembly 3 is formed thereat, and the space between the detection position 202 and the insertion port 1011 forms a buffer space 203.

[0039] The pulley storage device of the present embodiment is applied, and a position detection component 2 is arranged on the storage rack 1, and its detection end 201 is arranged on the side of the insertion port 1011 of the storage groove 101. This form of position detection component 2 can detect the position of the movable pulley assembly 3 before the movable pulley assembly 3 contacts the storage groove 101. When the movable pulley assembly 3 reaches the detection position 202, the position detection component 2 can send a signal to stop the component driving the movable pulley assembly 3. At this time, the position of the movable pulley assembly 3 can be adjusted. When the movable pulley assembly 3 is aligned with the insertion port 1011, the movable pulley assembly 3 is continued to be driven to move into the storage groove 101, which can effectively avoid the collision between the movable pulley assembly 3 and the insertion port 1011, and effectively solves the problem that the existing pulley rack is easily failed due to the collision of the movable pulley.

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

[0041] In the related art, in order to prevent the movable pulley from entering the storage groove of the pulley frame and the winch assembly from continuing to drive the movable pulley to move and hit the inner wall of the storage groove, a commonly adopted measure is to set a detection component on the inner wall of the storage groove. When it is detected that the movable pulley enters the specified position of the storage groove, a signal can be sent to stop the working of the winch assembly. However, in actual work, before the movable pulley enters the storage groove, there is often a deviation between its own position and the position of the notch of the storage groove. The movable pulley will collide with the notch of the storage groove if it continues to move, which will not only damage the notch, but also cause damage to components related to the movable pulley. Setting a detection component on the inner wall of the storage groove cannot avoid the problem of the movable pulley damaging the notch, resulting in the need to frequently replace the pulley frame during long-term use of the super-lifting device.

[0042] The pulley storage device of the present embodiment can not only detect the position of the movable pulley assembly 3 when it does not contact 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 can prevent the storage rack 1 from contacting the storage rack 1 after continuing to move under the action of inertia.

[0043] In addition, since the pulley assembly in the super-lifting device usually includes more than just the movable pulley assembly 3 , a fixed pulley 106 is also provided on the storage rack 1 .

[0044] In a possible implementation, a mounting base 103 is provided on the storage rack 1, and the position detection component 2 is movably provided on the mounting base 103. When there is no need to perform position detection, the position detection component 2 can be changed to a storage state by moving the position detection component 2. 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 the problem of poor flexibility in use due to the fixed position of the position detection component 2 can be avoided.

[0045] It should be noted that, in order for the position detection component 2 to detect whether the position detection component 2 has reached this position at 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, and the position detection component 2 can be moved and stored, and the position detection component 2 can be changed from an extended state to a stored state, thereby effectively avoiding the problem of the detection end 201 being prone to collision and interference with external components when it continues to maintain an extended state.

[0046] Specifically, there is no limitation on the movable mode of the position detection component 2. It can be translated along a preset direction on the mounting seat 103, or can be swung or rotated on the inner mounting seat 103, as long as the detection end 201 of the position detection component 2 can be retracted.

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

[0048] In addition, there is no limitation on the moving driving mode of the position detection component 2. It can be driven by a driving cylinder, or by a driving component composed of a motor and gears, or it can be moved manually by an operator. It can be flexibly selected according to needs.

[0049] In one possible embodiment, a locking structure 104 is provided on the mounting base 103, and the locking structure 104 is locked with the position detection component 2. The locking structure 104 can make the position detection component 2 more stably and reliably in the current state, and prevent the position detection component 2 from moving at will, resulting in inaccurate position detection.

[0050] Among them, there is no limitation on the specific form of the locking structure 104. It can be fixed in position by means of penetration or abutment through snaps, positioning pins, bolts, etc., or it can be a blocking structure such as a baffle to limit the movement of the position detection component 2.

[0051] Specifically, a mounting hole is provided on the mounting seat 103, and the position detection component 2 can be movably inserted into the mounting hole. The locking structure 104 is a locking pin. A through hole is provided on the mounting seat 103 for the locking pin to pass through. The position detection component 2 is provided with at least one matching hole for matching with the locking pin. The mounting hole can not only limit 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 is easy to process and manufacture.

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

[0053] In a possible embodiment, the position detection component 2 includes a moving rod 204 and a detection member 205. The moving rod 204 is movably arranged on the mounting seat 103 along a first direction. The moving rod 204 extends along the first direction and has an accommodating cavity inside. The detection member 205 is arranged at one end of the moving rod 204 close to the insertion end 102 and forms a detection end 201. The wiring harness 2051 of the detection member 205 is passed through the accommodating cavity. The overall structure of the position detection component 2 is simple and reliable. The moving rod 204 can extend outward to form a mounting platform, so that the detection member 205 can perform detection at the detection position 202. The moving rod 204 can also protect the wiring harness 2051 of the detection member 205 to prevent the wiring harness 2051 from moving arbitrarily and interfering with external components and failing.

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

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

[0056] Specifically, in order to prevent the contact piece 2052 from contacting the movable pulley assembly 3 and being damaged by the continuous movement of the passive pulley assembly 3, the detection spring of the contact piece 2052 and the contact piece 2052 can be pushed by the movable pulley assembly 3 to bend, thereby improving the detection reliability.

[0057] In addition, if Figure 2 and Figure 3 As shown, the moving rod 204 can also rotate along its own circumferential direction on the mounting seat 103. The rotation of the moving rod 204 can drive the contact piece 2052 of the detection piece 205 to swing. When the position adjustment of the movable pulley assembly 3 is completed and it can continue to move, the moving rod 204 is rotated to make the contact piece 2052 swing toward the side away from the movable pulley assembly 3, so that the contact piece 2052 can actively avoid the moving trajectory of the movable pulley assembly 3, thereby preventing the movable pulley assembly 3 from continuing to move and causing damage to the contact piece 2052.

[0058] In a possible implementation, the movable pulley assembly 3 includes a pulley frame 301 and a movable pulley 302 arranged on the pulley frame 301, a limit rod 3011 is arranged on the pulley frame 301, and the storage frame 1 includes storage beams 105 arranged at intervals along a third direction, and the space between the two storage beams 105 forms a storage space, each storage beam 105 is provided with a storage groove 101, and each storage beam 105 is provided with a position detection assembly 2. When the movable pulley assembly 3 is stored, the limit rod 3011 of the pulley frame 301 needs to enter the two storage beams 105 at the same time. This setting method of the position detection assembly 2 can detect the two positions of the limit rod 3011, and the detection result is more stable and reliable.

[0059] Among them, when the movable pulley assembly 3 rotates so that there is an angle between the axis of the limit rod 3011 and the third direction, it may happen that only one of the position detection assemblies 2 measures 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 has a swinging problem at this time, which can be corrected in time.

[0060] In a possible embodiment, at least one wire clamp 107 is further provided on the side wall of the storage rack 1. The wire harness 2051 of the detection member 205 needs to be connected to the corresponding electrical connection position after passing through the movable rod 204. The wire clamp 107 can constrain the wire harness 2051 to prevent the wire clamp 107 from swinging at will. A wire coiling bracket is also provided on the side wall of the storage rack 1. When the wire harness 2051 is separated from the plug connector and the electrical connection position, the excess wire harness 2051 can be coiled on the wire coiling bracket for storage.

[0061] In addition, the storage rack 1 is further provided with a fixing part 108 in the storage slot 101, and the fixing part 108 is a positioning pin. When the limiting rod 3011 has not reached the specified position of the storage slot 101, the fixing part 108 is in a removed state. When the limiting rod 3011 reaches the specified position of the storage slot 101, the fixing part 108 is installed. Through the fixing part 108, a blocking structure is formed on the side of the limiting rod 3011 close to the insertion port 101 of the storage slot 101 to prevent the limiting rod 3011 from escaping from the storage slot 101.

[0062] According to an embodiment of the present invention, on the other hand, a lifting device is provided, which includes: a boom frame 4, a movable pulley assembly 3 and the above-mentioned 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, there is an electrical connection plug-in position at the position where the boom frame 4 and the storage rack 1 are assembled and connected, and the wiring harness 2051 of the detection member 205 needs to be connected to the electrical connection plug-in position.

[0064] According to an embodiment of the present invention, on the other hand, a pulley storage method is provided, using the above pulley storage device, which comprises:

[0065] The movable pulley assembly 3 is driven by the driving assembly to move toward the storage rack 1;

[0066] Continuous detection at the detection position 202 by the detection end 201 of the position detection component 2;

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

[0068] The driving assembly stops driving the movable pulley assembly 3 to move;

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

[0070] The driving 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 .

[0071] This pulley storage method can perform position detection through the position detection component 2 before the movable pulley component 3 enters the storage groove 101, so that the movable pulley component 3 stops at a position close to the insertion port 1011, so as to facilitate the adjustment of the position of the movable pulley component 3 to align it with the insertion port 1011, which can effectively avoid the collision between the movable pulley component 3 and the insertion port 1011.

[0072] In a possible implementation, the pulley storage device further includes a fixed pulley 106, which is rotatably disposed on the storage rack 1, and the driving assembly includes a winch structure and a driving rope 5, and the driving rope 5 is driven by the winch structure to pull the movable pulley assembly 3 to move;

[0073] The steps of driving the movable pulley assembly 3 to move toward the storage rack 1 by the driving assembly include:

[0074] The fixed pulley 106 is used as a pulling fulcrum;

[0075] Pass the driving rope 5 through the fixed pulley 106 to change the pulling direction of the driving rope 5;

[0076] The driving rope 5 passing through the fixed pulley 106 is passed around the movable pulley assembly 3 and then fixed;

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

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

[0079] Specifically, the movable pulley assembly 3 includes a pulley frame 301 and a movable pulley 302 arranged on the pulley frame 301. The driving rope 5 passes through the fixed pulley 106 first and then the movable pulley 302. If the driving rope 5 passes through the movable pulley 302 first and then the fixed pulley 106, there will be an angle between the driving rope 5 and the first direction. Directly pulling the movable pulley 302 will cause the movable pulley assembly 3 to 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. This problem can be avoided by the pulley storage method of this embodiment.

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

[0081] After the step of adjusting the position of the movable pulley assembly 3 and aligning the movable pulley assembly 3 with the insertion opening 1011 of the storage rack 1, the following step is further included:

[0082] The position detection assembly 2 is moved in a direction away from the movable pulley assembly 3 to a preset storage position.

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

[0084] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all 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) having a storage slot (101) extending along a first direction, one end of the storage rack (1) in the first direction being an insertion end (102), and an insertion opening (1011) of the storage slot (101) being located at the insertion end (102); A position detection component (2) is arranged on the storage rack (1) and has a detection end (201). The detection end (201) is located on a side of the storage rack (1) close to 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).

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

3. The pulley storage device according to claim 2, characterized in that: A locking structure (104) is provided on the mounting seat (103), and the locking structure (104) is locked and matched with the position detection component (2).

4. The pulley storage device according to claim 2 or 3, characterized in that: The position detection assembly (2) comprises a moving rod (204) and a detection member (205); the moving rod (204) is movably arranged on the mounting seat (103) along a first direction; the moving rod (204) extends along the first direction and has an accommodating cavity inside; the detection member (205) is arranged at one end of the moving rod (204) close to the insertion end (102) and forms the detection end (201); and a wiring harness (2051) of the detection member (205) is passed through the accommodating cavity.

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

6. The pulley storage device according to any one of claims 1 to 3, characterized in that: The movable pulley assembly (3) comprises a pulley frame (301) and a movable pulley (302) arranged on the pulley frame (301); a limit rod (3011) is arranged on the pulley frame (301); the storage frame (1) comprises storage beams (105) arranged at intervals along a third direction; the space between two storage beams (105) forms a storage space; each storage beam (105) is provided with the storage groove (101); and each storage beam (105) is provided with the position detection assembly (2).

7. A lifting device, characterized in that: include: Boom frame (4); A movable pulley assembly (3); The pulley storage device according to any one of claims 1 to 6, wherein the 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).

8. A pulley storage method, using the pulley storage device according to claim 1, characterized in that: include: The movable pulley assembly (3) is driven by the driving assembly to move toward the storage rack (1); Continuously detecting at the detection position (202) through the detection end (201) of the position detection component (2); The position detection component (2) detects that the movable pulley component (3) has reached the detection position (202); The driving assembly stops driving the movable pulley assembly (3) to move; Adjusting the position of the movable pulley assembly (3) and aligning the movable pulley assembly (3) with the insertion opening (1011) of the storage rack (1); The driving 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 groove (101) of the storage rack (1).

9. The pulley storage method according to claim 8, characterized in that: The pulley storage device also has a fixed pulley (106), which is rotatably arranged on the storage rack (1); the driving assembly includes a hoisting structure and a driving rope (5), and the driving rope (5) is driven by the hoisting structure to pull the movable pulley assembly (3) to move; The step of driving the movable pulley assembly (3) to move toward the storage rack (1) by the driving assembly comprises: Using the fixed pulley (106) as a pulling fulcrum; Passing the driving rope (5) through the fixed pulley (106) to change the pulling direction of the driving rope (5); The driving rope (5) passing through the fixed pulley (106) is passed around the movable pulley assembly (3) and then fixed; The driving rope (5) is pulled by the hoisting structure to drive the movable pulley assembly (3) to move toward the storage rack (1).

10. The pulley storage method according to claim 8, characterized in that: The storage rack (1) is provided with a mounting seat (103), and the position detection component (2) is movably arranged on the mounting seat (103); After the step of adjusting the position of the movable pulley assembly (3) and aligning the movable pulley assembly (3) with the insertion opening (1011) of the storage rack (1), the method further comprises: The position detection component (2) is moved in a direction away from the movable pulley component (3) to a preset storage position.

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