A thread wheel storage device

Abstract

The utility model relates to wire reel storage device technical field discloses a wire reel storage device, aims at solving the problem of low space utilization rate, high operation risk and inconvenient management of traditional wire reel shelf, the wire reel storage device includes goods shelf, hanging bracket, guide rail and wire reel hanging pipe, and the both sides of goods shelf are equipped with side plate and layered guide rail, and the guide rail contains rolling section and end section, and the stable movement and accurate deceleration positioning of wire reel hanging pipe are realized respectively, the hanging bracket is suspended through I point, T point bears wire reel hanging pipe, and the transverse stress support is realized in combination with support structure, and the load distribution is optimized, and the overturning moment is reduced, the utility model suspends in layers through suspension, mechanical optimization and modularization design, and the space utilization rate and operation safety are improved significantly, the structure is simplified and the cost benefit is high, and be applicable to the efficient storage and hoisting operation of industrial wire reel.

Description

Technical Field

[0001] This utility model relates to the field of storage device technology, and more specifically to a thread reel storage device. Background Technology

[0002] In traditional shelving systems, the coils can only be placed on the outside of the shelving or at an angle. This results in bulky shelving, inconvenient hanging, and risks during hanging operations (because the coils are positioned vertically, the lifting chains need to avoid coils already placed on the shelving above). Furthermore, the shelving cannot be moved.

[0003] Due to the aforementioned defects of reel racks on the market, most companies have abandoned using racks and instead placed reels on pallets. Since the reels vary in weight and size, they are difficult to manage on-site. Wiring and cutting require back-and-forth movement between the storage location and the usage location, resulting in low work efficiency and high time costs. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a reel storage device that solves the problems of wasted space, high operational risks, and inconvenient management associated with traditional reel racks. This device combines safety, economy, and efficiency, and is suitable for large-scale storage and hoisting operations of reels in industrial applications.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A reel storage device, comprising:

[0007] The shelf has side panels on both sides, guide rails are installed on the side panels, a support structure is provided on the shelf above the guide rails, and a support base is provided at the end of the guide rails;

[0008] The hanger has a first lifting point (I point), a second lifting point (T point) and a load-bearing structure. The first lifting point (I point) is used to connect with the hook of the lifting tool, and the second lifting point (T point) is used to support the wire reel and the pipe. The load-bearing structure is connected to the support structure to provide lateral load support for the hanger.

[0009] A guide rail is provided with a support surface, the support surface including at least one rolling section and an end section, and the sheave tube enters the guide rail and then passes through the rolling section and the end section in sequence to enter the support seat;

[0010] The reel hanger can be installed at point T of the hanger for suspending the reel in the air, and the reel hanger can enter the guide rail for rolling.

[0011] Furthermore, the two ends of the sheave tube are provided with rolling structures, which enable the sheave tube to roll on the guide rail, greatly reducing rolling friction resistance and making the rolling smoother.

[0012] Furthermore, the rolling section and the end section of the guide rail support surface are made of straight lines, curves, or a combination of straight lines and curves.

[0013] Furthermore, the rolling segments are combined to form an arc segment, and the end segment is also an arc segment, wherein the center of the arc segment of the rolling segment is located at the bottom, and the center of the arc segment of the end segment is located at the top.

[0014] Furthermore, the sin(γ) value of the horizontal tangential component of the sheave tube on the rolling section is a constant, and the sin(α) value of the horizontal tangential component of the sheave tube on the end section is also a constant.

[0015] Furthermore, the hanger is provided with point O, and the force-bearing structure is set at point O. When the hanger enters the shelf, point O can be located at the center line of the shelf side panel. When the IT line is vertical, the angle between the IO line and the horizontal line is equal to 1 / 2 of the angle between the OT line and the vertical line. This is the case where the lateral force on the shelf is minimized, and the overturning moment on the shelf is minimized.

[0016] Furthermore, the support structure includes mounting holes and connecting shaft structures. The mounting holes are located at the vertical centerline of the side panel of the shelf. The load-bearing structure includes a sliding groove. The connecting shaft structure passes through the mounting holes and the sliding groove respectively, so that the hanger can be rotatably connected to the side panel and slide up and down at the mounting holes.

[0017] Furthermore, the supporting structure includes a supporting crossbar, and the force-bearing structure includes a force-bearing rod. The supporting crossbar is installed on the side of the pulley pipe entering the rack and is arranged horizontally. The force-bearing rod is located on the hanger in a vertical state and can contact the supporting crossbar to provide lateral support to the hanger.

[0018] Furthermore, the side panel is provided with a straight placement layer and at least one hoisting layer from top to bottom. The straight placement layer is provided with a straight placement seat, and each hoisting layer is provided with a support structure, guide rail and support seat.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] 1. High space utilization and compact structure: Through the optimized design of the suspended rollers and guide rails, the rollers can be stored vertically in layers inside the rack, avoiding the defects of traditional racks that need to be placed at an angle or externally, greatly reducing the floor space occupied and improving the utilization rate of warehouse space.

[0021] 2. Safe and stable operation with low risk: The guide rail adopts a segmented design with a rolling section and a tail section. The rolling section ensures that the sheave and the pipe roll smoothly, while the tail section achieves precise positioning through arc deceleration. This effectively avoids the sheave from shifting or falling off due to inertial impact, significantly reducing safety hazards in hoisting operations.

[0022] 3. Mechanical optimization and strong anti-overturning performance: The load distribution of the hanger and the rack is optimized through the cooperation of I point, T point and the force-bearing structure and support structure (O point or F point), which minimizes the overturning moment and ensures the overall stability of the rack, especially during dynamic hoisting.

[0023] 4. Simplified structure and high cost-effectiveness: It has multiple stable implementation schemes. The optimal scheme can eliminate the physical O point and use the F point to replace the lateral force bearing, simplifying the hanger structure and reducing manufacturing and maintenance costs. At the same time, through equivalent optimization of the mechanical model, the original stability is maintained and the convenience of installation and disassembly is improved.

[0024] 5. Modular design, flexible adaptation: The rack supports multi-layer lifting design, with each layer equipped with independent guide rails and support structure, which can flexibly adapt to different specifications of reels to meet diverse warehousing needs and improve equipment versatility.

[0025] 6. Widely adaptable to different reel specifications: The rolling section of the guide rail and the support surface of the end section can adopt complex curves such as straight lines, curves, or a combination of straight lines and curves. By dynamically adjusting the sin(γ) and sin(α) values ​​of the horizontal tangential component, it can adapt to reels of different weights and sizes. For example, heavy-duty reels can achieve deceleration optimization by reducing the sin(α) value of the end section, ensuring that all types of reels can be positioned smoothly, enhancing the versatility and flexibility of the device.

[0026] This invention solves the problems of wasted space, high operational risk, and inconvenient management of traditional reel racks. It combines safety, economy, and efficiency, and is suitable for large-scale storage and hoisting operations of reels in the industrial field. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0028] Figure 1 A schematic diagram of a reel storage device (Example 1). Figure 1 ;

[0029] Figure 2 This is a schematic diagram of the analysis at the starting position in Example 1;

[0030] Figure 3 This is a schematic diagram of the analysis of Example 1 at an arbitrary angle position (in front of point K3, in a stationary state), where (a) is the overall analysis and (b) is the force analysis;

[0031] Figure 4 This is a schematic diagram of the analysis of Example 1 at an arbitrary angle position (after point K3, in a stationary state), where (a) is the overall analysis and (b) is the force analysis;

[0032] Figure 5 This is a schematic diagram illustrating the analysis of the motion state in Example 1;

[0033] Figure 6 This is a schematic diagram of the analysis in the horizontal position for Example 1, where (a) is the overall analysis and (b) is the force analysis;

[0034] Figure 7 This is a schematic diagram of the analysis at point K3 in Example 1, where (a) is the overall analysis and (b) is the force analysis;

[0035] Figure 8 This is a schematic diagram of the analysis at the termination position in Example 1;

[0036] Figure 9 A schematic diagram of a reel storage device (Embodiment 2). Figure 2 ;

[0037] Figure 10 This is a schematic diagram of the analysis at the starting position in Example 2;

[0038] Figure 11 This is a schematic diagram of the analysis of Example 2 at an arbitrary angle position (in front of point K3, in a stationary state), where (a) is the overall analysis and (b) is the force analysis;

[0039] Figure 12 This is a schematic diagram of the analysis of Example 2 at an arbitrary angle position (after point K3, in a stationary state), where (a) is the overall analysis and (b) is the force analysis;

[0040] Figure 13 This is a schematic diagram of motion state analysis in Example 2;

[0041] Figure 14 This is a schematic diagram of the analysis in the horizontal position for Example 2, where (a) is the overall analysis and (b) is the force analysis;

[0042] Figure 15 This is a schematic diagram of the analysis at point K3 in Example 2, where (a) is the overall analysis and (b) is the force analysis;

[0043] Figure 16 This is a schematic diagram of the analysis at the termination position in Example 2.

[0044] The markings in the diagram are as follows: 1. Shelf; 101. Upright; 102. Side panel; 103. Support base; 104. Horizontal tie rod; 105. Vertical support; 106. Mounting hole; 2. Hanger; 201. Load-bearing structure; 202. First hanging point; 203. Second hanging point; 3. Track; 4. Wire wheel hanger; 5. Support crossbar; 501. Roller. Detailed Implementation

[0045] Example 1:

[0046] A reel storage device, comprising:

[0047] Shelf 1, with side panels 102 on both sides, guide rails installed on the side panels 102, a support structure above the guide rails on the shelf 1, and a support seat 103 at the end of the guide rails;

[0048] The hanger 2 is provided with a point I, a point T and a force-bearing structure 201. The point I is provided with a first lifting point 202 for connecting with the hook of the lifting tool, and the point T is provided with a second lifting point 203 for supporting the wire pulley pipe 4. The force-bearing structure 201 is connected with the support structure to provide lateral force support for the hanger 2.

[0049] The guide rail has a support surface, which includes at least one rolling section and one end section. After the sheave tube 4 enters the guide rail, it passes through the rolling section and the end section in sequence and enters the support seat 103.

[0050] The sheave suspension tube 4 can be installed at point T of the hanger 2 for suspending the sheave in the air, and the sheave suspension tube 4 can enter the guide rail for rolling.

[0051] Preferably, the two ends of the sheave tube 4 are provided with rolling structures, which enable the sheave tube 4 to roll on the guide rail, greatly reducing rolling friction resistance and making the rolling smoother.

[0052] Preferably, the rolling section and the end section of the guide rail support surface have straight lines, curves, or a combination of straight lines and curves.

[0053] Preferably, the rolling segments are combined to form an arc segment, and the end segment is also an arc segment, wherein the center of the arc segment of the rolling segment is located at the bottom, and the center of the arc segment of the end segment is located at the top.

[0054] Specifically, in this embodiment, two circular arc segments (circles) are used as guide rail curves to perform motion analysis under the most unfavorable mechanical model conditions. It is necessary to obtain uniform motion in the first segment and deceleration motion in the second segment. The horizontal tangential component should remain constant during the motion to obtain uniform rolling. Before the termination position, deceleration motion is performed, and finally, the motion is smooth and falls into the guide rail support seat 103. This is the optimal working condition.

[0055] Preferably, the sin(γ) value of the horizontal tangential component of the sheave tube on the rolling section is a constant, and the sin(α) value of the horizontal tangential component of the sheave tube on the end section is a constant.

[0056] To maintain a constant horizontal tangential force, sin(γ) and sin(α) should be constant values ​​(if sin(γ) and sin(α) are constant values, the rolling segment and the end segment are complex curves, not two circular arc segments). Before the termination position, the value of sin(α) can be adjusted according to the weight of the reel in actual application. For example, if the reel is too heavy, the rolling inertia is large, so the value of sin(α) can be reduced until it enters the hanging pipe support 103 at a tangential angle (sin(α)=0).

[0057] Preferably, the hanger 2 is provided with a point O, and the force-bearing structure 201 is provided at point O. When the hanger 2 enters the shelf 1, point O can be located at the center line of the side plate 102 of the shelf 1. When the IT line is in a vertical state, the angle between the IO line and the horizontal line is equal to 1 / 2 of the angle between the OT line and the vertical line, which is the case where the lateral force on the shelf 1 is minimized and the overturning moment on the shelf 1 is minimized.

[0058] Preferably, the support structure includes a mounting hole 106 and a connecting shaft structure. The mounting hole 106 is located at the vertical center line of the side plate 102 of the shelf 1. The force-bearing structure 201 includes a sliding groove. The connecting shaft structure passes through the mounting hole 106 and the sliding groove respectively, so that the hanger 2 can be rotatably connected to the side plate 102 and slide up and down at the mounting hole 106.

[0059] Specifically, after the hanger 2 is hoisted into the shelf 1, the mounting hole 106 can be aligned with the slide groove. Then, the connecting shaft structure is installed into the mounting hole 106 and the slide groove, so that the hanger 2 can be rotatably connected to the side plate 102 and slide up and down at the mounting hole 106 through the slide groove and the connecting shaft structure.

[0060] Preferably, the vertical projection of the hanger 2 is triangular.

[0061] Preferably, the shelf 1 is provided with several lifting layers, and each lifting layer is provided with guide rails, support structures and support bases 103.

[0062] Preferably, the top of the shelf 1 is provided with a straight layer, and the straight layer is provided with a straight seat 105. The structure of the straight seat 105 is the same as that of the support seat 103. Two rotating seats can be used. The rotating seats can be round shaft-like structural parts. The two rotating seats are rotatably connected to the side plate 102, and a rotating support space is provided between the two rotating seats.

[0063] Specifically, by setting two rotating seats, the wire sheave hanging pipe 4 can be placed above the two rotating seats to support the wire sheave hanging pipe 4, and at the same time, the wire sheave hanging pipe 4 and the wire sheave can rotate for wire feeding.

[0064] Specifically, by setting up a vertical placement layer, the reel can be placed directly and vertically on the vertical placement seat 105 of the vertical placement layer from above, making it convenient to take out and put in the top layer.

[0065] Preferably, the second lifting point 203 at point T of the hanger 2 is a connecting through hole, and the sheave pipe 4 passes through the connecting through hole and extends out of the hanger 2 at both ends;

[0066] Specifically, the sheave hanging pipe 4 is first connected to the sheave, and then installed on the hanger 2, extending out of the hanger 2 through the connecting through holes at both ends.

[0067] Preferably, the shelf 1 includes a plurality of uprights 101 and a plurality of horizontal tie rods 104, the plurality of horizontal tie rods 104 being arranged horizontally and connected to the plurality of uprights 101 respectively.

[0068] Preferably, the shelf 1 includes a base and several uprights 101, the uprights 101 are inserted into the base for detachable connection, the side plate 102 is installed between two uprights 101, the base can be installed separately or as a whole, and the uprights 101 are inserted into the base for installation.

[0069] Technical principle:

[0070] The intersection of the outermost point of the upright 101 of shelf 1 (the entrance end of the sheave hoisting) with the horizon is Z1, the intersection of the outermost point of the upright 101 of shelf 1 (the other end of the entrance end of the sheave hoisting) with the horizon is Z2, the horizon is Z1-Z2, the intersection of the center line of the upright 101 of shelf 1 (the entrance end of the sheave hoisting) with the horizon is C1, the intersection of the center line of the upright 101 of shelf 1 (the other end of the entrance end of the sheave hoisting) with the horizon is C2, the width of the square tube upright 101 of shelf 1 is s1, and the depth of shelf 1 is L12.

[0071] With point O3 as the center, K3O3 has a radius of R3;

[0072] With center O, the radius of IO is R1. With center O, the radius of KO is R2. The length of the lifting rope [distance from the starting lifting point I on the crane hook / hanger 2 to the starting lifting point I on the crane hook / hanger 2] is L3=H1I1. The diameter of the spool is D1. The diameter of the spool lifting tube 4 is d2.

[0073] Point C1 is the center of the circle, and the radius of C1K1 is R4;

[0074] The weight of the reel is G;

[0075] The forces acting on point I (the tension force exerted by the crane on the gantry): the vertical component is U1, and the horizontal component is U2;

[0076] The forces acting on point O (the reaction force of the shelf on the hanger): the vertical component is W1, and the horizontal component is W2;

[0077] The component of the force perpendicular to the tangent to the weight G of the spool is V1;

[0078] The tangential component of the force on the weight G of the spool is V2;

[0079] The tangential force V2 of the weight G of the spool is V21 perpendicular;

[0080] The tangential force V2 of the weight G of the spool is horizontal;

[0081] The support force of the guide rail on the line pulley, hanging pipe, and hanger is V_support.

[0082] Assuming the weight of the triangular hanger 2 is negligible compared to the weight G of the reel, and the reel tube uses a rolling structure to slide on the guide rail, the friction of the guide rail can be ignored, and the force analysis at each of the following motion trajectories is a force analysis under equilibrium conditions.

[0083] A. Starting position 1: The lifting spool enters the rack 1, and the spool lifting tube 4 presses against the support surface of the guide rail, see... Figure 2 ;

[0084] The hook lifting point is H1, the center point of the lifting point of the hanger 2 is I1, the center point of the sheave tube 4 of the hanger 2 is T1, the force point connecting the hanger 2 and the shelf 1 is O1, and the tangent point between the outer diameter of the sheave tube 4 of the hanger 2 and the arc R4 of the support plate is K1 [which is also the intersection of the outer diameter of the sheave tube 4 of the hanger 2 and the vertical line H1C1].

[0085] Starting position 1, the distance between the center I1 and O1 is I1O1, R1=I1O1;

[0086] Starting position 1, the distance between the center T1 and O1 is T1O1, R2=T1O1;

[0087] U1=0, U2=0;

[0088] W1=0, W2=0;

[0089] V1 = G (thread reel), V2 = 0;

[0090] B. Arbitrary Angle Position (before point K3, stationary state (without release from lifting point I): The hanger 2 rotates by an angle φ from the starting position 1, I1O1, to the arbitrary point position. Simultaneously, the sheave tube 4 rolls on the track 3, as shown... Figure 3 As shown, this corresponds to a rotation to angle γ. Figure 3 ;

[0091] The hook lifting point is H5, the center point of the lifting point of the hanger 2 is I5, the center point of the sheave tube 4 of the hanger 2 is T5, the force point connecting the hanger 2 and the shelf 1 is O5, and the tangent point between the outer diameter of the sheave tube 4 of the hanger 2 and the arc R4 of the guide rail support surface is K5.

[0092] The angle β between the starting lifting point H5 of the crane and the lifting point I5 on the crane hook / coil 2 and the vertical line H5C1 is ∠I5H5C1, and the angle γ between line C1K5 and the vertical line H5C1 is ∠H5C1K5.

[0093] V1 = G * cos(γ), Note: The extension of the force direction of V1 should not exceed point Z1;

[0094] V2 = G*sin(γ);

[0095] V21 vertical=V2*sin(γ)= G*sin(γ)*sin(γ);

[0096] V22 level = V2*cos(γ)=G*cos(γ)*sin(γ);

[0097] V1 = Vsupport (action and reaction forces are balanced), W1 = 0 [no upper or lower limit];

[0098] U1 = V21 vertical; (because V1 and V support are in balance with each other, W1 = 0, so only U1 and V21 remain in the vertical direction, and the two are in balance with each other).

[0099] U2=U1*tan(β)=V21 vertical*tan(β);

[0100] W2=U2+V22 level = G*sin(γ)*sin(γ)*tan(β)+G*cos(γ)*sin(γ);

[0101] It can be seen that the active forces are U1, U2 and G. The center of gravity of the spool is between C1 and C2 of the upright 101 of the shelf 1, which is stable. When the spool is stationary, U1 and U2 are very small, and the overturning moment N is very small and can be ignored. Therefore, at any angle position [(before point K3, in a stationary state (without releasing the lifting point I)], it is completely safe and stable.

[0102] C. Arbitrary Angle Position [(After point K3, stationary state (without release from lifting point I)]: The hanger 2 rotates by an angle φ from the starting position 1, I1O1 to an arbitrary position. Simultaneously, the sheave tube 4 rolls on the track 3, as... Figure 4 As shown, rotate to angle β, see Figure 4 ;

[0103] The position of point K3, the angle between line K3O3 and the vertical line (the center line of the location where the reel is stored), α1=∠C1O3K4, (combined with...) Figure 7 and Figure 8 (various locations in the middle)

[0104] The position of point K3, the angle between line K3O3 and the vertical line (the center line of the location where the reel is stored), α2 = ∠C1O3T1, (combined with...) Figure 2 , Figure 7 and Figure 8 (various locations in the middle)

[0105] α = α2 - (φ - α1);

[0106] V1 = G * cos(α), Note: The extension of the force direction of V1 should not exceed point Z1;

[0107] V2 = G*sin(α);

[0108] V21 vertical=V2*sin(α)= G*sin(α)*sin(α);

[0109] V22 level = V2*cos(α)=G*cos(α)*sin(α);

[0110] U1=V21 perpendicular;

[0111] U2=U1*tan(β)=V21 vertical*tan(β);

[0112] V1 = V_support (action and reaction forces are in balance).

[0113] W1=0 [No upper or lower limit];

[0114] W2=U2+V22 level = G*sin(α)*sin(α)*tan(β)+G*cos(α)*sin(α);

[0115] As analyzed above (see B above), at any angle position [(before point K3, in a stationary state (without release from point I)], it is completely safe and stable;

[0116] D. Motion State [With the suspension point I fully released, regardless of whether it is before or after point K3] The hanger 2 rotates from the starting position 1, I1O by an angle φ, to any point position. Simultaneously, the sheave tube 4 rolls on the track 3, as... Figure 5 As shown, rotate to angle φ, see Figure 5 ;

[0117] V1 = G * cos(γ), Note: The extension of the force direction of V1 should not exceed point Z1;

[0118] V2 = G*sin(γ);

[0119] V21 vertical=V2*sin(γ)= G*sin(γ)*sin(γ);

[0120] V22 level = V2*cos(γ)=G*cos(γ)*sin(γ);

[0121] U1=0, U2=0 [Lifting point I is fully released];

[0122] W1=0 [No upper or lower limit];

[0123] V1 = V_support (action and reaction forces are in balance).

[0124] W2=U2+V22 level = G*cos(γ)*sin(γ);

[0125] This shows that the only active force is G, and the center of gravity of the spool is stable between C1 and C2 of the upright 101 of the shelf 1.

[0126] Because the hanger 2O provides a reverse horizontal force W2, the rolling downward force of the sheave tube 4 on the supporting guide surface is only V21 vertical. The vertical force V21 is relatively small, which ensures that the sheave rolls more smoothly. At the same time, the magnitude of the vertical force V21 can be adjusted and controlled according to the curvature of the curve within the range of γ and α angles, so that the motion state meets the desired requirements.

[0127] Specifically, the curvature of the curves within the γ and α angle ranges is adjusted through control during manufacturing, with calculations and controls applied to all data.

[0128] E. Horizontal position (when the hanger 2 points I and O are rotated to the horizontal position IO): See Figure 6 ;

[0129] The hook lifting point is H2, the center point of the lifting point of the hanger 2 is I2, the center point of the sheave tube 4 of the hanger 2 is T2, the force point connecting the hanger 2 and the shelf 1 is O2, the tangent point between the outer diameter of the sheave tube 4 of the hanger 2 and the arc R4 of the guide rail is K2, the intersection of the horizontal line passing through I2 and the vertical line H1C1 is A2, the intersection of the horizontal line passing through K2 and the vertical line H1C1 is B2, the intersection of the horizontal line passing through K2 and the vertical line (the center line of the sheave storage position) is P2, and the intersection of the horizontal line passing through the center I2 and O2 and the vertical line H1C1 is M2.

[0130] The hanger 2 rotates from the initial position I1O1 to the horizontal position I2O2 by an angle of θ1.

[0131] Horizontal position 2, horizontal line I2M2 distance [the distance X2=I2M2 from the vertical line of the starting point H1C1 of the gantry crane when the center point I of the lifting point of the gantry crane 2 is rotated to the horizontal position;

[0132] The calculation methods for V1, V2, V22 levels, V2 treatment, U1, U2, W1, and W2 are the same as above, see (B or C).

[0133] Since (the position of the force-bearing point I of hanger 2 relative to O is the key control point, when the angle of IO rotating to the horizontal position is equal to half the angle of IO rotating to the final position, the overturning N is minimized), Figure 6 It can be seen that in the horizontal position, the size of I2A2 (where A2 and M2 coincide in the horizontal position) is the largest, meaning that the force U2 is the largest in this position. U2 is the active force and will generate a tilting moment N, which will cause the shelf 1 to shift or tilt. Therefore, it is better to keep U2 as small as possible. Thus, controlling the size of I2A2 is the key point. The size of I2A2 is related to the relative positions of points I, T, and O. According to research, after the dimensions of shelf 1 and the reel are determined, the relative positions of points I, O, and M are also determined. Point T is on a straight line with points I and M. Therefore, only the length of TM will change. Thus, by controlling the change in the length of TM, the value of U2 can be adjusted.

[0134] F.K3 position (stationary state (without release from lifting point I)): K3 is the common tangent point between the outer diameter of the lifting pipe and the arcs R3 and R4 of the support plate. See Figure 7 ;

[0135] The hook lifting point is H3, the center point of the lifting point of the hanger 2 is I3, the center point of the sheave tube 4 of the hanger 2 is T3, the force point connecting the hanger 2 and the shelf 1 is O3, and the tangent point between the outer diameter of the sheave tube 4 of the hanger 2 and the arcs R3 and R4 of the support surface of the guide rail is K3.

[0136] The position of point K3 is the angle between the collinear line C1K3O3 and the perpendicular line H1C1, γ=∠T1C1K3;

[0137] The location of point K3 is R3 = the distance to K3O3;

[0138] K3 is the point of tangency between the two circles;

[0139] The calculation methods for levels V1, V2, V22, I1, U2, W1, and W2 are the same as above, see (B or C).

[0140] G. Termination Position 4: The lifting spool enters the middle position of shelf 1, see... Figure 8 ;

[0141] The hook lifting point is H4, the center point of the lifting point of the hanger 2 is I4, the center point of the sheave tube 4 of the hanger 2 is T4, the force point connecting the hanger 2 and the shelf 1 is O4, and the tangent point between the outer diameter of the sheave tube 4 of the hanger 2 and the extension line of the arc R2 of the guide rail support surface is K4.

[0142] When the reel hanging pipe 4 approaches but before it falls into the support seat 103, U1≈0, W1=0, U2=W2≈0, V1≈G (reel), V2≈0;

[0143] When the sheave pipe 4 falls into the support seat 103, U1=0, U2=0, W1=0, W2=0, V1=G, V2=0.

[0144] Example 2:

[0145] A reel storage device, comprising:

[0146] Shelf 1, with side panels 102 on both sides, guide rails installed on the side panels 102, a support structure above the guide rails on the shelf 1, and a support seat 103 at the end of the guide rails;

[0147] The hanger 2 is provided with a point I, a point T and a force-bearing structure 201. The point I is provided with a first lifting point 202 for connecting with the hook of the lifting tool, and the point T is provided with a second lifting point 203 for supporting the wire pulley pipe 4. The force-bearing structure 201 is connected with the support structure to provide lateral force support for the hanger 2.

[0148] The guide rail has a support surface, which includes at least one rolling section and one end section. After the sheave tube 4 enters the guide rail, it passes through the rolling section and the end section in sequence and enters the support seat 103.

[0149] The sheave suspension tube 4 can be installed at point T of the hanger 2 for suspending the sheave in the air, and the sheave suspension tube 4 can enter the guide rail for rolling.

[0150] Preferably, the two ends of the sheave tube 4 are provided with rolling structures, which enable the sheave tube 4 to roll on the guide rail, greatly reducing rolling friction resistance and making the rolling smoother.

[0151] Preferably, the rolling section and the end section of the guide rail support surface have straight lines, curves, or a combination of straight lines and curves.

[0152] Preferably, the rolling segments are combined to form an arc segment, and the end segment is also an arc segment, wherein the center of the arc segment of the rolling segment is located at the bottom, and the center of the arc segment of the end segment is located at the top.

[0153] Preferably, the sin(γ) value of the horizontal tangential component of the sheave tube on the rolling section is a constant, and the sin(α) value of the horizontal tangential component of the sheave tube on the end section is a constant.

[0154] To maintain a constant horizontal tangential force, sin(γ) and sin(α) should be constant values ​​(if sin(γ) and sin(α) are constant values, the rolling segment and the end segment are complex curves, not two circular arc segments). Before the termination position, the value of sin(α) can be adjusted according to the weight of the reel in actual application. For example, if the reel is too heavy, the rolling inertia is large, so the value of sin(α) can be reduced until it enters the hanging pipe support 103 at a tangential angle (sin(α)=0).

[0155] Preferably, the hanger 2 is provided with a point O, and the force-bearing structure 201 is provided at point O. When the hanger 2 enters the shelf 1, point O can be located at the center line of the side plate 102 of the shelf 1. When the IT line is in a vertical state, the angle between the IO line and the horizontal line is equal to 1 / 2 of the angle between the OT line and the vertical line, which is the case where the lateral force on the shelf 1 is minimized and the overturning moment on the shelf 1 is minimized.

[0156] Preferably, the support structure includes a mounting hole 106 and a connecting shaft structure. The mounting hole 106 is located at the vertical center line of the side plate 102 of the shelf 1. The force-bearing structure 201 includes a sliding groove. The connecting shaft structure passes through the mounting hole 106 and the sliding groove respectively, so that the hanger 2 can be rotatably connected to the side plate 102 and slide up and down at the mounting hole 106.

[0157] Preferably, the support structure includes a support crossbar 5, and the force-bearing structure 201 includes a force-bearing rod. The support crossbar 5 is installed on the entry side of the pulley hanging tube 4 of the shelf 1 and is arranged horizontally. The force-bearing rod is located on the hanger 2 in a vertical state and can contact the support crossbar 5 to provide lateral support for the hanger 2.

[0158] Preferably, the side plate 102 is provided with a straight placement layer and at least one hoisting layer from top to bottom. The straight placement layer is provided with a straight placement seat 105, and each hoisting layer is provided with a support structure, a guide rail and a support seat 103.

[0159] Preferably, the support crossbar 5 is provided with a roller 501, which can contact and support the force-bearing bar.

[0160] Preferably, the shelf 1 is provided with several lifting layers, and each lifting layer is provided with guide rails, support structures and support bases 103.

[0161] Preferably, the top of the shelf 1 is provided with a straight layer, and the straight layer is provided with a straight seat 105. The structure of the straight seat 105 is the same as that of the support seat 103. Two rotating seats can be used. The rotating seats can be round shaft-like structural parts. The two rotating seats are rotatably connected to the side plate 102, and a rotating support space is provided between the two rotating seats.

[0162] Specifically, by setting two rotating seats, the wire sheave hanging pipe 4 can be placed above the two rotating seats to support the wire sheave hanging pipe 4, and at the same time, the wire sheave hanging pipe 4 and the wire sheave can rotate for wire feeding.

[0163] Specifically, by setting up a vertical placement layer, the reel can be placed directly and vertically on the vertical placement seat 105 of the vertical placement layer from above, making it convenient to take out and put in the top layer.

[0164] Preferably, the shelf 1 includes a plurality of uprights 101 and a plurality of horizontal tie rods 104, the plurality of horizontal tie rods 104 being arranged horizontally and connected to the plurality of uprights 101 respectively.

[0165] Preferably, the shelf 1 includes a base and several uprights 101, the uprights 101 are inserted into the base for detachable connection, the side plate 102 is installed between two uprights 101, the base can be installed separately or as a whole, and the uprights 101 are inserted into the base for installation.

[0166] In this embodiment, improvements were made based on the first embodiment by setting up a hanger 2, a support crossbar 5, and a guide rail. The inconvenience of connecting the hanger 2 to the shelf 1 through a connecting structure was improved. The physical point O of the hanger 2 was eliminated [the theoretical point O still exists], and a point F (i.e., at the junction of the support structure and the load-bearing structure) was added to replace point O in bearing the lateral force W2. In this way, the hanger 2 was simplified without changing the mechanical model.

[0167] Technical principle:

[0168] The intersection of the outermost point of the upright 101 of shelf 1 (the entrance end of the sheave hoisting) with the horizon is Z1, the intersection of the outermost point of the upright 101 of shelf 1 (the other end of the entrance end of the sheave hoisting) with the horizon is Z2, the horizon is Z1-Z2, the intersection of the center line of the upright 101 of shelf 1 (the entrance end of the sheave hoisting) with the horizon is C1, the intersection of the center line of the upright 101 of shelf 1 (the other end of the entrance end of the sheave hoisting) with the horizon is C2, the width of the square tube upright 101 of shelf 1 is s1, and the depth of shelf 1 is L12.

[0169] With point O3 as the center, K3O3 has a radius of R3;

[0170] With center O, the radius of IO is R1. With center O, the radius of KO is R2. The length of the lifting rope [distance from the starting lifting point I on the crane hook / hanger 2 to the starting lifting point I on the crane hook / hanger 2] is L3=H1I1. The diameter of the spool is D1. The diameter of the spool lifting tube 4 is d2.

[0171] Point C1 is the center of the circle, and the radius R4 = C1K1.

[0172] The contact tangent point between the pulley on the crossbar and the hanger 2 is F;

[0173] The weight of the reel is G;

[0174] The forces acting on point I (the tension force exerted by the crane on the gantry): the vertical component is U1, and the horizontal component is U2;

[0175] The forces acting on point F (the reaction force of the shelf on the hanger): the vertical component is W1, and the horizontal component is W2;

[0176] The component of the force perpendicular to the tangent to the weight G of the spool is V1;

[0177] The tangential component of the force on the weight G of the spool is V2;

[0178] The tangential force V2 of the weight G of the spool is V21 perpendicular;

[0179] The tangential force V2 of the weight G of the spool is horizontal;

[0180] Assuming the weight of the triangular hanger 2 is negligible compared to the weight G of the reel, and that the reel's suspension tube uses a rolling structure to slide on the guide rail, thus the friction of the guide rail is negligible, and that the force analysis at each of the following motion trajectories is performed under conditions of equilibrium.

[0181] Force analysis.

[0182] I. Starting Position 1: The lifting reel enters the rack 1, and the reel presses against the support surface of the track 3, see... Figure 10 ;

[0183] The hook lifting point is at H1, the center point of the lifting point of the hanger 2 is I1, the center point of the hanging tube of the hanger 2 is T1, the force point connecting the hanger 2 and the shelf 1 is O1, and the tangent point between the outer diameter of the hanging tube of the hanger 2 and the arc R4 of the support plate is K1 [which is also the intersection of the outer diameter of the hanging tube 4 of the hanger 2 and the vertical line of H1C1].

[0184] Starting position 1, the distance between the center I1 and O1 is I1O1, R1=I1O1;

[0185] Starting position 1, the distance between the center T1 and O1 is R2 = T1O1;

[0186] U1=0, U2=0;

[0187] W1=0, W2=0;

[0188] V1 = G (thread reel), V2 = 0;

[0189] J. Arbitrary Angle Position [(before point K3, stationary state (without release from lifting point I)]: The hanger 2 rotates by an angle φ from the starting position 1, I1O, to an arbitrary position. Simultaneously, the sheave tube 4 rolls on the track 3, as... Figure 11 As shown, this corresponds to a rotation to angle γ. Figure 11 ;

[0190] The hook lifting point is H5, the center point of the lifting point of the hanger 2 is I5, the center point of the lifting tube of the hanger 2 is T5, the force point connecting the hanger 2 and the shelf 1 is O5, and the tangent point between the outer diameter of the hanging tube of the hanger 2 and the arc R4 of the support plate is K5.

[0191] The angle β between the starting lifting point H5 of the crane and the lifting point I5 on the crane hook / coil 2 and the vertical line H5C1 is ∠I5H5C1, and the angle γ between line C1K5 and the vertical line H5C1 is ∠H5C1K5.

[0192] V1 = G * cos(γ), Note: The extension of the force direction of V1 should not exceed point Z1;

[0193] V2 = G*sin(γ);

[0194] V21 vertical=V2*sin(γ)= G*sin(γ)*sin(γ);

[0195] V22 level = V2*cos(γ)=G*cos(γ)*sin(γ);

[0196] U1=V21 vertical (refer to the analysis of Example 1B);

[0197] U2=U1*tan(β)=V21 vertical*tan(β);

[0198] V1 = V_support (action and reaction forces are in balance).

[0199] W1=0 [In this embodiment, the contact point F between the hanger 2 and the roller 501 is on the horizontal line];

[0200] W2=U2+V22 level = G*sin(γ)*sin(γ)*tan(β)+G*cos(γ)*sin(γ).

[0201] Depend on Figure 11 Analysis and calculation formulas for each force show that the active forces are U1, U2, and G. The center of gravity of the spool is between the uprights 101C1 and C2 of shelf 1, which is stable.

[0202] It can also be concluded that the mechanical model of Example 2 is unchanged from that of Example 1, except that the point of force application of W2 changes from point O in Example 1 to point F in Example 2. Figure 10 (As shown). Since U1 = V21 is vertical, this force is relatively small, while the larger force V22 is horizontal. The fulcrum O [Example 1] is changed to the fulcrum F [Example 2]. This structural design allows the spool to be pulled out by applying only a small force U1, so that it can move from the middle storage position [end position 4] to the spool's entry position [start position 1], thus achieving safe and stable spool storage and retrieval operations.

[0203] K. Arbitrary Angle Position [(After point K3, stationary state (without release from lifting point I)]: The hanger 2 rotates by an angle φ from the starting position 1, I1O, to an arbitrary position. Simultaneously, the hanging pipe rolls on track 3, as... Figure 12 As shown, rotate to angle φ, see Figure 12 ;

[0204] The position of point K3, the angle between line K3O3 and the vertical line (the center line of the location where the reel is stored), α1=∠C1O3K4, (combined with...) Figure 15 and Figure 16 (various locations in the middle)

[0205] The position of point K3, the angle between line K3O3 and the vertical line (the center line of the location where the reel is stored), α2 = ∠C1O3T1, (combined with...) Figure 10 , Figure 15 and Figure 16 (various locations in the middle)

[0206] α = α2 - (φ - α1);

[0207] V1 = G * cos(α), Note: The extension of the force direction of V1 should not exceed point Z1;

[0208] V2 = G*sin(α);

[0209] V21 vertical=V2*sin(α)= G*sin(α)*sin(α);

[0210] V22 level = V2*cos(α)=G*cos(α)*sin(α);

[0211] U1=V21 perpendicular;

[0212] U2=U1*tan(β)=V21 vertical*tan(β);

[0213] V1 = V_support (action and reaction forces are in balance).

[0214] W1=0 [In this case, the contact point F between the hanger 2 and the roller 501 is on the horizontal line];

[0215] W2=U2+V22 level = G*sin(α)*sin(α)*tan(β)+G*cos(α)*sin(α);

[0216] As analyzed above, it can be concluded that the mechanical model of Example 2 and Example 1 remains unchanged, and the position at any angle [(before point K3, in a stationary state (without release from lifting point I)] is completely safe and stable.

[0217] L. Motion State [With the lifting point I fully released, regardless of whether it is before or after point K3] The hanger 2 rotates from the starting position 1, I1O, by an angle φ, to any point position. Simultaneously, the sheave tube 4 rolls on the track 3, as... Figure 13 As shown, rotate to angle φ, see Figure 13 ;

[0218] V1 = G * cos(γ), Note: The extension of the force direction of V1 should not exceed point Z1;

[0219] V2 = G*sin(γ);

[0220] V21 vertical=V2*sin(γ)= G*sin(γ)*sin(γ);

[0221] V22 level = V2*cos(γ)=G*cos(γ)*sin(γ);

[0222] U1=0, U2=0 [Lifting point I is fully released];

[0223] V1 = V_support (action and reaction forces are in balance).

[0224] W1=0 [No upper or lower limit];

[0225] W2=U2+V22 level = G*cos(γ)*sin(γ);

[0226] As analyzed above, it can be concluded that the mechanical model of Example 2 and Example 1 remains unchanged, and the position at any angle [(before point K3, in a stationary state (without release from lifting point I)] is completely safe and stable.

[0227] Since point F of hanger 2 provides a reverse horizontal force W2, the rolling downward force of the sheave tube 4 on the support surface of the guide rail is reduced to only V21 (vertical). The relatively small vertical force V21 ensures smoother sheave rolling. Furthermore, the magnitude of the vertical force V21 can be adjusted based on the curvature of the curves within the γ and α angle ranges to ensure the motion meets the desired requirements.

[0228] Specifically, the curvature of the curves within the γ and α angle ranges is adjusted through control during manufacturing, with calculations and controls applied to all data.

[0229] M. Horizontal position (when the hanger 2 points I and O are rotated to the horizontal position IO): See Figure 14 ;

[0230] The hook lifting point is H2, the center point of the lifting point of the hanger 2 is I2, the center point of the lifting tube of the hanger 2 is T2, the force point connecting the hanger 2 and the shelf 1 is O2, the tangent point of the outer diameter of the hanging tube of the hanger 2 and the arc R4 of the support plate is K2, the intersection of the horizontal line passing through I2 and the vertical line H1C1 is A2, the intersection of the horizontal line passing through K2 and the vertical line H1C1 is B2, the intersection of the horizontal line passing through K2 and the vertical line (the center line of the coil sheave storage position) is P2, and the intersection of the horizontal line passing through the center I2 and O2 and the vertical line H1C1 is M2.

[0231] The hanger 2 rotates from the initial position I1O1 to the horizontal position I2O2 by an angle of θ1.

[0232] Horizontal position 2, horizontal line I2M2 distance [the distance X2=I2M2 from the vertical line of the starting point H1C1 of the gantry crane when the center point I of the lifting point of the gantry crane 2 is rotated to the horizontal position;

[0233] The calculation methods for V1, V2, V22 levels, V2 treatment, U1, U2, W1, and W2 are the same as above, see (B or C).

[0234] Based on the above analysis, it can be concluded that the mechanical models of Example 1 and Example 2 are unchanged.

[0235] N.K3 position (stationary state (without release of lifting point I)): The common tangent point K3 between the outer diameter of the sheave tube 4 and the arcs R3 and R4 of the guide rail support surface, see Figure 15 ;

[0236] The hook lifting point is H3, the center point of the lifting point of the hanger 2 is I3, the center point of the lifting tube of the hanger 2 is T3, the force point connecting the hanger 2 and the shelf 1 is O3, and the tangent point between the outer diameter of the sheave tube 4 of the hanger 2 and the arcs R3 and R4 of the guide rail support surface is K3.

[0237] The position of point K3, the angle between collinear line C1K3O3 and perpendicular line H1C1, γ3=∠T1C1K3;

[0238] The location of point K3 is R3 = the distance to K3O3;

[0239] K3 is the point of tangency between the two circles.

[0240] The calculation methods for levels V1, V2, V22, I1, U2, W1, and W2 are the same as above, see (B or C).

[0241] Based on the above analysis, it can be concluded that the mechanical models of Example 1 and Example 2 are unchanged.

[0242] O. Termination Position 4: The hoisting line reel enters the middle position of shelf 1, see... Figure 16 ;

[0243] The hook lifting point is H4, the center point of the lifting point of the hanger 2 is I4, the center point of the lifting tube of the hanger 2 is T4, the force point connecting the hanger 2 and the shelf 1 is O4, and the tangent point between the outer diameter of the hanging tube of the hanger 2 and the extension line of the arc R2 of the support plate is K4.

[0244] When the reel hanging pipe 4 approaches but does not fall into the hanging pipe support seat 103, U1≈0, W1=0, U2=W2≈0, V1≈G (reel), V2≈0;

[0245] When the sheave pipe 4 falls into the pipe support seat 103, U1=0, U2=0, W1=0, W2=0, V1=G, V2=0;

[0246] Based on the above analysis, it can be concluded that the mechanical models of Embodiment 1 and Embodiment 2 remain unchanged.

[0247] In Example 2, the force point O connecting the hanger 2 and the shelf 1 is eliminated, simplifying the hanger 2 to only two force points. However, the original force point O of the hanger 2 still exists in the mechanical model of Example 2 (the hanger 2 and the track 3 still refer to the original point O position as the rotation point). The advantages of doing this are: 1) The lateral force can be minimized, thereby reducing the lateral displacement force or overturning moment of the shelf 1 and improving the safety factor; 2) The mechanical model is simplified. As long as basic data parameters (the diameter, weight, width, etc. of the reel) are provided, the various data required for the design can be automatically calculated and output, such as the width and depth of the shelf 1, the size of the hanger 2, and the arc curve of the guide rail.

[0248] Example 2 solves the unresolved issues of Example 1 (the inconvenience of connecting the hanger 2 to the shelf 1 when needed), while improving ease of operation and efficiency, and reducing the cost of application.

[0249] Advantages of the utility model:

[0250] 1. High space utilization and compact structure: Through the optimized design of the suspended rollers and guide rails, the rollers can be stored vertically in layers inside the rack 1, avoiding the defects of traditional rack 1 which needs to be placed at an angle or externally, greatly reducing the floor space occupied and improving the utilization rate of warehouse space.

[0251] 2. Safe and stable operation with low risk: The guide rail adopts a segmented design with a rolling section and a tail section. The rolling section ensures that the sheave and the lifting tube 4 roll smoothly, while the tail section achieves precise positioning through arc deceleration. This effectively avoids the sheave from shifting or falling off due to inertial impact, and significantly reduces safety hazards in lifting operations.

[0252] 3. Mechanical optimization and strong anti-overturning performance: The load distribution of the hanger 2 and the rack 1 is optimized through the cooperation of the I point, T point and the load-bearing structure 201 and the support structure (O point or F point), which minimizes the overturning moment and ensures the overall stability of the rack 1, especially during dynamic hoisting.

[0253] 4. Simplified structure and high cost-effectiveness: It has multiple stable implementation schemes. The optimal scheme can eliminate the physical point O and use point F to replace the lateral force bearing, simplifying the structure of hanger 2, reducing manufacturing and maintenance costs. At the same time, through equivalent optimization of the mechanical model, the original stability is maintained and the convenience of installation and disassembly is improved.

[0254] 5. Modular design, flexible adaptation: Shelf 1 supports multi-layer lifting design, each layer is equipped with independent guide rails and support structure, which can flexibly adapt to different specifications of reels to meet diverse warehousing needs and improve equipment versatility.

[0255] 6. Widely adaptable to different reel specifications: The rolling section of the guide rail and the support surface of the end section can adopt complex curves such as straight lines, curves, or a combination of straight lines and curves. By dynamically adjusting the sin(γ) and sin(α) values ​​of the horizontal tangential component, it can adapt to reels of different weights and sizes. For example, heavy-duty reels can achieve deceleration optimization by reducing the sin(α) value of the end section, ensuring that all types of reels can be positioned smoothly, enhancing the versatility and flexibility of the device.

[0256] This invention solves the problems of space waste, high operational risk, and inconvenient management of traditional reel racks, and combines safety, economy and efficiency, making it suitable for large-scale storage and hoisting operations of reels in the industrial field.

[0257] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A thread reel storage device, characterized in that, include: The shelf has side panels on both sides, guide rails are installed on the side panels, a support structure is provided on the shelf above the guide rails, and a support base is provided at the end of the guide rails; The hanger has a first lifting point (I point), a second lifting point (T point) and a load-bearing structure. The first lifting point (I point) is used to connect with the hook of the lifting tool, and the second lifting point (T point) is used to support the wire reel and the pipe. The load-bearing structure is connected to the support structure to provide lateral load support for the hanger. A guide rail is provided with a support surface, the support surface including at least one rolling section and an end section, and the sheave tube enters the guide rail and then passes through the rolling section and the end section in sequence to enter the support seat; The reel hanger can be installed at point T of the hanger for suspending the reel in the air, and the reel hanger can enter the guide rail for rolling.

2. The thread reel storage device according to claim 1, characterized in that: The two ends of the sheave tube are provided with rolling structures, which enable the sheave tube to roll on the guide rail, greatly reducing rolling friction resistance and making the rolling smoother.

3. The thread reel storage device according to claim 1, characterized in that: The rolling section and the end section of the guide rail support surface use straight lines, curves, or a combination of straight lines and curves.

4. The thread reel storage device according to claim 1, characterized in that: The rolling segments combine to form an arc segment, and the end segment is also an arc segment, wherein the center of the arc segment of the rolling segment is located at the bottom, and the center of the arc segment of the end segment is located at the top.

5. A thread reel storage device according to claim 1, characterized in that: The sin(γ) value of the horizontal tangential component of the sheave tube on the rolling section is a constant, and the sin(α) value of the horizontal tangential component of the sheave tube on the end section is also a constant.

6. A reel storage device according to any one of claims 1-5, characterized in that: The hanger is provided with point O, and the force-bearing structure is set at point O. When the hanger enters the shelf, point O can be located at the center line of the shelf side panel. When the IT line is vertical, the angle between the IO line and the horizontal line is equal to 1 / 2 of the angle between the OT line and the vertical line. This is the case where the lateral force on the shelf is minimized, and the overturning moment on the shelf is minimized.

7. A thread reel storage device according to claim 6, characterized in that: The support structure includes mounting holes and connecting shaft structures. The mounting holes are located at the vertical center line of the side panel of the shelf. The load-bearing structure includes a sliding groove. The connecting shaft structures pass through the mounting holes and the sliding grooves respectively, so that the hanger can be rotatably connected to the side panel and slide up and down at the mounting holes.

8. A reel storage device according to any one of claims 1-5, characterized in that: The support structure includes a support crossbar, and the force-bearing structure includes a force-bearing rod. The support crossbar is installed on the side of the pulley pipe of the rack and is arranged horizontally. The force-bearing rod is located on the hanger in a vertical state and can contact the support crossbar to provide lateral support to the hanger.

9. A thread reel storage device according to claim 1, characterized in that: The side panel is provided with a straight placement layer and at least one hoisting layer from top to bottom. The straight placement layer is provided with a straight placement seat, and each hoisting layer is provided with a support structure, guide rail and support seat.

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