Chain box and lifting device

Abstract

The embodiment of the utility model provides a chain box and a lifting device, and relates to the technical field of lifting equipment. The chain box is used for containing a chain of the electric hoist and comprises a box body, a connecting assembly and a connecting piece, the connecting assembly is arranged on the box body and used for being in sliding connection with a mounting beam of the electric hoist, and the connecting piece is arranged on the connecting assembly and used for being connected with the electric hoist. The box body is directly connected with the mounting beam through the connecting assembly and connected with the electric hoist through the connecting piece, connection is stable and reliable, the chain box is prevented from being hung below the electric hoist through bolts, and the chain box is prevented from falling off due to bolt breakage.

Description

Technical Field

[0001] The present application relates to the technical field of lifting equipment, and in particular to a chain box and a lifting device. Background Art

[0002] Wind turbines are usually equipped with lifting devices, which are used to lift spare parts or other heavy objects of the wind turbines to facilitate the inspection and maintenance of the wind turbines.

[0003] In the prior art, the lifting device includes an electric hoist and a chain box, wherein the chain box is used to store the chain on the electric hoist. The electric hoist is connected to the crossbeam of the wind turbine, and the chain box is suspended on one side of the electric hoist by bolts, and the bolts bear the shear force applied by the chain box for a long time.

[0004] However, when at least one of the wind turbine and the electric hoist is in operation, the chain box may shake and drive the bolts to move or sway, thereby causing the bolts to wear and break or even the chain box to fall off. Utility Model Content

[0005] The embodiments of the present application provide a chain box and a lifting device to solve the problem that the bolts between the chain box and the electric hoist of the existing lifting device are easy to break, causing the chain box to fall off.

[0006] The chain box provided in the embodiment of the present application is used to accommodate the chain of the electric hoist, and includes a box body, a connecting component and a connecting piece. The connecting component is arranged on the box body, and the connecting component is used to be slidably connected to the mounting beam of the electric hoist. The connecting piece is arranged on the connecting component, and the connecting piece is used to connect to the electric hoist.

[0007] In a possible implementation, the chain box provided in the embodiment of the present application, the connecting assembly includes an extension member and a rolling member, the extension member is arranged on the box body, the rolling member is rotatably arranged on the extension member, and the rolling member is used for rolling connection with the mounting beam.

[0008] In one possible implementation, the chain box provided in an embodiment of the present application, the extension member includes a first connecting segment, a second connecting segment and a third connecting segment, the second connecting segment is arranged on one side of the first connecting segment, the third connecting segment is arranged on a side of the second connecting segment away from the first connecting segment, the first connecting segment is connected to the box body, the second connecting segment is used to be hung with the mounting beam, and the rolling member is arranged on the third connecting segment.

[0009] In one possible implementation, the chain box provided in the embodiment of the present application, the connecting assembly also includes a lubricating part and an elastic part, the second connecting section is bent to form a mounting groove, the notch of the mounting groove is used to hang with the mounting beam, the elastic part and the lubricating part are both located in the mounting groove, the elastic part is elastically abutted against the lubricating part, and the lubricating part is used to slide abut against the mounting beam.

[0010] In a possible implementation, the chain box provided in the embodiment of the present application has two extension members, the two extension members are respectively connected to opposite sides of the box body, and the connecting member is correspondingly arranged with the extension member;

[0011] At least two rolling elements are provided, and the at least two rolling elements are respectively located on the two third connecting sections.

[0012] In a possible implementation, the chain box provided in an embodiment of the present application, the connecting assembly also includes a limit member and a butt member, the limit member is sequentially passed through the two first connecting segments and abuts against the side of the two first connecting segments facing away from each other, and the butt member is arranged on the limit member and abuts against the side of the two first connecting segments facing each other.

[0013] In a possible implementation, in the chain box provided in the embodiment of the present application, the extension piece and the box body are integrally formed.

[0014] In a possible implementation, in the chain box provided in the embodiment of the present application, the connecting piece is a rigid piece, and the connecting piece is detachably connected to the connecting assembly.

[0015] In one possible implementation, the chain box provided in the embodiment of the present application has a box body with a accommodating cavity, the accommodating cavity is used to accommodate the chain of the electric hoist, and a guide piece is arranged on the same side of the box body as the connecting piece, the guide piece is connected to the accommodating cavity, and is inclined toward the connecting piece.

[0016] An embodiment of the present application also provides a lifting device, including an electric hoist and any of the above-mentioned chain boxes, wherein the chain box is connected to the electric hoist.

[0017] The chain box and lifting device provided in the embodiment of the present application are characterized in that the chain box is provided with a connecting assembly and a connecting piece on the box body, so that the connecting assembly is connected to the mounting beam of the electric hoist, and the connecting assembly is connected to the electric hoist through the connecting piece. The box body is directly connected to the mounting beam through the connecting assembly, that is, the box body is directly hung on the mounting beam, and the connecting assembly is connected to the electric hoist through the connecting piece, so that the connection between the chain box and the electric hoist can be stable and reliable, the weight distribution of the chain can be more even, and the chain box can be moved with the electric hoist. In this way, it is avoided that the chain box is suspended under the electric hoist by bolts, and then the chain box is prevented from shaking when the electric hoist or equipment such as a fan is running, and reciprocating shear force is applied to the bolts to cause the bolts to wear and break, thereby preventing the chain box from falling off. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A diagram showing the use status of the lifting device provided in the embodiment of the present application;

[0020] Figure 2 for Figure 1 Sectional view along AA direction;

[0021] Figure 3 for Figure 1 A schematic diagram of the structure of the chain box provided in the embodiment of the present application;

[0022] Figure 4 for Figure 3 The structural diagram of the middle box;

[0023] Figure 5 for Figure 4 A schematic diagram of the structure of the storage chain inside the box;

[0024] Figure 6 for Figure 3 A schematic diagram of the structure of the middle connecting piece;

[0025] Figure 7 for Figure 3 A schematic diagram of the structure of the middle limiter and the abutment member;

[0026] Figure 8 for Figure 1 Schematic diagram of the structure of the electric hoist.

[0027] Description of reference numerals:

[0028] 100-chain box; 110-box; 111-accommodating chamber; 112-guide member; 120-connecting assembly; 121-extension member; 1211-first connecting section; 1212-second connecting section; 1213-third connecting section; 122-rolling member; 123-lubricating member; 124-elastic member; 125-limiting member; 126-abutting member; 130-connecting member; 140-fastening member;

[0029] 200-electric hoist; 210-reducer; 220-hanging plate; 230-jib; 240-connecting rod; 250-chain; 260-hook; 270-driving wheel;

[0030] 300-Installation beam. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0032] As described in the background technology, a wind turbine is usually equipped with a lifting device on the cabin platform. The lifting device lifts spare parts or other heavy objects of the wind turbine to facilitate the inspection and maintenance of the wind turbine. The lifting device includes an electric hoist and a chain box. The chain box is used to store the chain on the electric hoist. The electric hoist is connected to the transverse mounting beam in the cabin platform of the wind turbine. The chain box is suspended and installed on the electric hoist by bolts. After the installation is completed, the bolts will bear the shear force applied by the chain box for a long time, and the chain is connected to one side of the electric hoist through the chain box, and the weight distribution of the lifting device is uneven.

[0033] When the wind turbine is running, the cabin platform will vibrate and sway, which will cause the electric hoist to shake and impact the mounting beam, and the vibration will be further transmitted to the chain box, causing the chain box to shake. When the electric hoist is running, it will also vibrate or shake to a certain extent, causing the chain box to shake or tilt.

[0034] Because the chain box is affected by gravity, it will apply shear force to the bolts connecting itself and the electric hoist. When the chain box shakes due to the above reasons, it will further drive the bolts to move or move, causing the bolts to be worn reciprocatingly. When the bolts are severely worn, they may fail and break, or even cause the chain box to fall off.

[0035] In order to overcome the defects in the prior art, the embodiment of the present application provides a chain box and a lifting device. The chain box is provided with a connecting assembly and a connector on the box body, so that the connecting assembly is connected to the mounting beam of the electric hoist, and the connecting assembly is connected to the electric hoist through the connector. The box body is directly connected to the mounting beam through the connecting assembly, that is, the box body is directly hung on the mounting beam, and the connecting assembly is connected to the electric hoist through the connector, so that the connection between the chain box and the electric hoist can be stable and reliable, and the weight distribution of the chain can be more uniform. In this way, it is avoided that the chain box is suspended under the electric hoist by bolts, and then the chain box is prevented from shaking when the electric hoist or the fan and other equipment are running, and reciprocating shear force is applied to the bolts to cause the bolts to wear and break, thereby avoiding the chain box from falling off.

[0036] The content of the utility model will be described in detail below with reference to the accompanying drawings so that those skilled in the art can understand the content of the utility model more clearly and in detail.

[0037] Reference Figure 1 and Figure 2 As shown, an embodiment of the present application provides a chain box 100 for accommodating a chain 250 of an electric hoist 200. The chain box 100 includes a box body 110, a connecting assembly 120 and a connecting piece 130. The connecting assembly 120 is disposed on the box body 110. The connecting assembly 120 is used for sliding connection with a mounting beam 300 of the electric hoist 200. The connecting piece 130 is disposed on the connecting assembly 120. The connecting piece 130 is used for connecting to the electric hoist 200.

[0038] First of all, it should be noted that Figures 1 to 8 The X, Y, and Z directions shown in FIG. 1 are perpendicular to each other in the three-dimensional space.

[0039] In this embodiment, the mounting beam 300 may be a beam disposed on the cabin platform of the wind turbine. In other embodiments, the mounting beam 300 may also be a beam disposed in other places with lifting requirements such as construction sites and production workshops, and this application does not impose any restrictions on this.

[0040] The mounting beam 300 may be as shown in the embodiment Figure 1 and Figure 2 The I-beam structure shown in FIG. 1 , in other embodiments, the mounting beam 300 may also be a corresponding beam structure on a gantry or a workshop crane, and the present application does not impose any limitation on this.

[0041] The box body 110 of the chain box 100 is used to receive and store the chain 250 of the electric hoist 200. The chain 250 is wound around the electric hoist 200. One end of the chain 250 is provided with a hook 260 for moving along the vertical direction (i.e. Figure 1 Z direction) rises or falls, and the rest of the chain 250 is the same Figure 5 As shown, the chain 250 is located in the box body 110 , and as the hook 260 descends, the chain 250 gradually extends out of the chain box 100 , and when the hook 260 rises, the chain 250 is retracted into the chain box 100 again.

[0042] Among them, the box body 110 is along Figure 1A connecting assembly 120 is provided in the middle Z direction, and the box body 110 can be directly connected to the mounting beam 300 through the connecting assembly 120 without the help of the electric hoist 200, that is, the chain box 100 can be connected to the mounting beam 300 by using the connecting assembly 120 provided thereon. By providing the connecting assembly 120 on the box body 110 and directly connecting it with the mounting beam 300, it is possible to avoid providing bolts between the chain box 100 and the electric hoist 200, and suspending the chain box 100 under the electric hoist 200. This prevents the bolts from breaking and the subsequent falling off of the chain box 100 caused by the shaking of the chain box 100.

[0043] In addition, the electric hoist 200 itself can be connected to the mounting beam 300, and a connector 130 is also provided on the connecting assembly 120, and the connector 130 can be detachably connected to the electric hoist 200, so that the connecting assembly 120 can be connected to the electric hoist 200 through the connector 130, so that the chain box 100 and the electric hoist 200 form a whole. The connector 130 is detachably connected to the electric hoist 200, so that the chain box 100 is adapted to different electric hoists 200, so that one of the chain box 100 or the electric hoist 200 needs to be disassembled and replaced when maintenance and repair is required.

[0044] A connector 130 is provided on the connection assembly 120, and the connector 130 is connected to the electric hoist 200, so that the connector 130 can be used to form a double protection for the chain box 100, and the chain box 100 is further connected to the electric hoist 200 on the basis of being connected to the mounting beam 300. In this way, when the connection between the chain box 100 and the mounting beam 300 fails during the use of the chain box 100, the connector 130 can be used to prevent the chain box 100 from falling off immediately, thereby improving the stability of the chain box 100. Alternatively, when the connection between the chain box 100 and the electric hoist 200 fails, the chain box 100 and the mounting beam 300 are still stably connected and will not fall off.

[0045] Therefore, the chain box 100 provided in the embodiment of the present application is provided with a connecting assembly 120 and a connecting piece 130 on the box body 110, so that the connecting assembly 120 is connected to the mounting beam 300 of the electric hoist 200, and the connecting assembly 120 is connected to the electric hoist 200 through the connecting piece 130. The box body 110 is directly connected to the mounting beam 300 through the connecting assembly 120 to prevent the vibration or shaking of the electric hoist 200 from affecting the box body 110. The connecting assembly 120 is connected to the electric hoist 200 through the connecting piece 130, so that the connection between the chain box 100 and the electric hoist 200 can be stable and reliable, and the weight distribution of the chain 250 can be more uniform. In this way, the chain box 100 is prevented from being suspended under the electric hoist 200 by bolts, thereby preventing the chain box 100 from shaking when the electric hoist 200 or equipment such as a fan is running, and applying reciprocating shear force to the bolts to cause the bolts to wear and break, thereby preventing the chain box 100 from falling off, thereby improving the safety of the lifting device.

[0046] It should be noted that the electric hoist 200 in the embodiment of the present application is a common electric hoist 200 in the prior art. Figure 1 and Figure 8 As shown, it generally includes a hanging plate 220, a hanging arm 230 and a reducer 210. The hanging plate 220 is connected to the mounting beam 300. One end of the hanging arm 230 is hinged to the hanging plate 220 through a connecting rod 240. The other end of the hanging arm 230 is hingedly hung with a reducer 210. The chain 250 is wound in the reducer 210. The chain 250 can be extended or retracted by the forward or reverse rotation of the reducer 210. A driving wheel 270 is also provided on the hanging plate 220. The driving wheel 270 rolls against the mounting beam 300, so that the electric hoist 200 can move along the extension direction of the mounting beam 300 under the action of the driving wheel 270, so as to adjust the position of the electric hoist 200 according to the working conditions. In addition, a driving motor is also provided on at least one driving wheel 270, so that the driving wheel 270 can drive the electric hoist 200 to move by itself under the drive of the driving motor.

[0047] Reference Figures 1 to 3 As shown, in some embodiments, the connection assembly 120 includes an extension member 121 and a rolling member 122 . The extension member 121 is disposed on the box body 110 . The rolling member 122 is rotatably disposed on the extension member 121 . The rolling member 122 is used for rolling connection with the mounting beam 300 .

[0048] In this configuration, an extension piece 121 extending along the Z direction can be provided on the box 110 to form a gap when the box 110 is connected to the mounting beam 300, so that the box 110 is located below the electric hoist 200 along the Z direction so that the chain 250 can be extended and retracted.

[0049] It is also understandable that, in actual use, the electric hoist 200 is usually adjusted and moved by the driving wheel 270, so a rolling member 122 may be provided on the extension member 121, so that the rolling member 122 rolls and contacts the mounting beam 300, and when the electric hoist 200 moves along the mounting beam 300, the connecting member 130 may drive the rolling member 122 to roll, thereby causing the chain box 100 to move synchronously with the electric hoist 200. This can prevent the electric hoist 200 and the chain box 100 from being too far apart when only the electric hoist 200 moves and the chain box 100 is relatively stationary, causing the chain 250 to extend unnecessarily and hang in the air, or even to extend excessively and cause the chain 250 to fall out.

[0050] In specific implementation, refer to Figures 1 to 5 As shown, the extension member 121 includes a first connection segment 1211, a second connection segment 1212 and a third connection segment 1213. The second connection segment 1212 is arranged on one side of the first connection segment 1211, and the third connection segment 1213 is arranged on a side of the second connection segment 1212 away from the first connection segment 1211. The first connection segment 1211 is connected to the box body 110, the second connection segment 1212 is used to be hung with the mounting beam 300, and the rolling member 122 is arranged on the third connection segment 1213. In this way, the first connection segment 1211, the second connection segment 1212 and the third connection segment 1213 are sequentially connected along the Z direction to form the extension member 121, so that the structure of the extension member 121 is simple and compact.

[0051] The first connecting section 1211 is connected to the box body 110 , so the interval between the box body 110 and the mounting beam 300 can be adjusted by adjusting the length of the first connecting section 1211 along the Z direction.

[0052] The second connecting section 1212 is connected to the lower part of the mounting beam 300 along the Z direction, so that the extension member 121 can be connected to the mounting beam 300 to prevent the chain box 100 from falling off. Specifically, the second connecting section 1212 can be connected by setting its own structure to form a step surface, so that the step surface abuts against the XY plane of the mounting beam 300, or other hanging parts can be installed on the second connecting section 1212 to achieve hanging, and this application does not limit this.

[0053] A rolling element 122 is disposed on one side of the third connecting section 1213 facing the mounting beam 300 along the X direction, so that the rolling element 122 can rotate relative to the third connecting section 1213 and roll against the mounting beam 300, and the third connecting section 1213 provides mounting support for the rolling element 122.

[0054] In this embodiment, the second connecting section 1212 is hung on the lower part of the mounting beam 300. In other embodiments, the second connecting section 1212 can also be set to be hung on the upper surface of the mounting beam 300. The position of the third connecting section 1213 can be set accordingly, so that the third connecting section 1213 is located above the mounting beam 300 and is in rolling contact with the mounting beam 300 through the rolling member 122. Alternatively, the positions of the second connecting section 1212 and the third connecting section 1213 can be swapped, that is, the second connecting section 1212 is set above the third connecting section 1213 along the Z direction to be hung on the upper surface of the mounting beam 300, and the third connecting section 1213 is still located on the side of the mounting beam 300, and the rolling member 122 is in rolling contact with the lower part of the mounting beam 300.

[0055] In some embodiments, reference Figures 1 to 4 As shown, the connecting assembly 120 also includes a lubricating member 123 and an elastic member 124. The second connecting section 1212 is bent to form a mounting groove, and the groove of the mounting groove is used to hang with the mounting beam 300. The elastic member 124 and the lubricating member 123 are both located in the mounting groove. The elastic member 124 elastically abuts against the lubricating member 123, and the lubricating member 123 is used to slide against the mounting beam 300.

[0056] It is understandable that the second connecting section 1212 needs to slide along the extension direction of the mounting beam 300 under the action of the rolling element 122 while being connected to the mounting beam 300, so it is inevitable that there is friction between the second connecting section 1212 and the mounting beam 300. In order to reduce friction, improve the movement efficiency of the chain box 100, and reduce the mutual wear between the connecting assembly 120 and the mounting beam 300, the second connecting section 1212 is bent to form a mounting groove, which is a through groove that passes through along the Y direction. A lubricating member 123 is inserted into the mounting groove along the Y direction, so that the lubricating member 123 slides and abuts against the mounting beam 300, thereby reducing the friction between the second connecting section 1212 and the mounting beam 300.

[0057] As the chain box 100 moves relative to the mounting beam 300, the lubricating member 123 will be gradually worn and the abutment with the mounting beam 300 will fail. Therefore, an elastic member 124 can be added between the mounting groove and the lubricating member 123 to make the elastic member 124 elastically abut against the lubricating member 123 so that the lubricating member 123 can always stably abut against the mounting beam 300.

[0058] Since the mounting beam 300 is formed by bending the second connecting section 1212, the notch of the mounting groove can be formed as follows: Figure 2 The opening shown in the figure is opened along the X direction and abuts against the XY surface of the lower portion of the mounting beam 300 along the Z direction. In other embodiments, the opening may be opened along the Z direction and abuts against the XY surface of the lower portion of the mounting beam 300 along the Z direction. The present application does not limit this.

[0059] Since the installation groove is continuous along the Y direction, the lubricating member 123 and the elastic member 124 can be inserted or removed along the Y direction using corresponding operating tools without disassembling the connecting assembly 120, making the assembly and disassembly operations of the lubricating member 123 and the elastic member 124 relatively simple.

[0060] In specific implementation, refer to Figures 1 to 4 As shown, two extension members 121 are provided, and the two extension members 121 are respectively connected to the opposite sides of the box body 110, and the connecting member 130 is correspondingly provided to the extension member 121; at least two rolling members 122 are provided, and at least two rolling members 122 are respectively located on two third connecting sections 1213.

[0061] Two extension pieces 121 are provided, so that the two extension pieces 121 are respectively located on opposite sides of the box body 110 along the X direction, and are connected to the mounting beam 300 from opposite sides of the mounting beam 300 along the X direction, so that the connection between the connecting component 120 and the mounting beam 300 can be more stable and reliable, and the safety of the chain box 100 is further improved.

[0062] The two connecting pieces 130 are correspondingly provided to ensure the stability of the connection between the connecting assembly 120 and the electric hoist 200 .

[0063] Furthermore, in order to further improve the stability of the connection between the extension member 121 and the mounting beam 300 and to make the movement of the extension member 121 along the mounting beam 300 smoother, at least two rolling members 122 are arranged at intervals along the Y direction on the third connecting section 1213, and the rolling members 122 are specifically rollers rotatably arranged on the third connecting section 1213.

[0064] Furthermore, in this embodiment, the two second connecting sections 1212 are arranged opposite to each other, so that the notch of the mounting groove formed by the second connecting section 1212 extends along the X direction, so that the two second connecting sections 1212 form a clamping structure for the mounting beam 300. In order to make the clamping of the mounting beam 300 by the two second connecting sections 1212 more stable and reliable, and to avoid the deflection of the chain box 100 when the rolling element 122 is damaged, resulting in the failure of the connection between the second connecting section 1212 and the mounting beam 300, refer to Figure 2 , Figure 3 and Figure 7 As shown, the connection assembly 120 also includes a limit member 125 and abutment member 126. The limit member 125 is sequentially passed through the two first connection sections 1211 and abuts against the sides of the two first connection sections 1211 that are opposite to each other. The abutment member 126 is arranged on the limit member 125 and abuts against the sides of the two first connection sections 1211 that are facing each other.

[0065] It can be understood that by setting the limit member 125 and the abutment member 126, the relative distance between the two extension members 121 can be maintained to prevent the two extension members 121 from getting close to or away from each other, thereby ensuring the structural stability of the connecting assembly 120, and further ensuring that the second connecting section 1212 and the mounting beam 300 are clamped stably and reliably.

[0066] The limiting member 125 is passed through the two first connecting sections 1211, and has a compact structure. The limiting member 125 serves as a pull rod, and abuts against the side of the two extension members 121 that are away from each other along the X direction, mainly limiting the two extension members 121 from moving away from each other along the X direction. The abutting member 126 is sleeved on the limiting member 125, and abuts against the side of the two extension members 121 that are facing each other along the X direction, so as to limit the two extension members 121 from moving closer to each other along the X direction.

[0067] In this embodiment, the length of the limit member 125 is adapted to the length of the abutment member 126, and fasteners 140 are connected to both ends of the limit member 125, and the limit member 125 abuts against the side of the two extension members 121 that are away from each other through the fasteners 140. In other embodiments, the length of the limit member 125 can also be set to be greater than the spacing between the two opposite sides of the two extension members 121, and a stopping step surface is set at one end of the extension member 121, and a thread is set at the other end, and it is connected to the nut to limit the two extension members 121 from moving away from each other. Threads can even be set at both ends of the limit member 125, and the nut can be threadedly connected to the limit member 125 from the side of the two extension members 121 that are relatively away from each other. This application does not impose any restrictions on this.

[0068] The fastener 140 mentioned in the embodiment of the present application may specifically be a bolt or a rivet, etc., and the present application does not impose any limitation on this.

[0069] In the present embodiment, the abutment member 126 is movably mounted on the limiting member 125 to abut against the side of the two extension members 121 facing each other. In other embodiments, the abutment member 126 can also be located on one side of the limiting member 125 instead of being mounted on the limiting member 125, or the abutment member 126 can be integrally formed on the limiting member 125 so that it is a stop rod or a stop plate on the limiting member 125. The present application does not impose any restrictions on this.

[0070] In some embodiments, reference Figure 4 As shown, the extension piece 121 is integrally formed with the box body 110, and is specifically integrally connected with two side plates of the box body 110 that are arranged opposite to each other along the X direction. This arrangement can make the processing of the chain box 100 more convenient and faster, save production costs, and make the connection between the extension piece 121 and the box body 110 more stable and reliable.

[0071] In other embodiments, the extension member 121 may be riveted, welded or bolted to the box body 110, which is not limited in the present application.

[0072] And, in some embodiments, reference Figure 6 As shown, the connecting member 130 is a rigid member, and the connecting member 130 and the connecting assembly 120 are detachably connected.

[0073] It can be understood that setting the connecting member 130 as a rigid member can keep the relative position between the chain box 100 and the electric hoist 200 relatively stable, and can ensure stable transmission, so that the electric hoist 200 drives the chain box 100 to move forward and backward along the Y direction through the connecting member 130. In other embodiments, the connecting member 130 can also be set as an elastic member 124 or a flexible member, and the present application does not limit this.

[0074] The connector 130 and the connecting assembly 120 are detachably connected via the fastener 140, so that when the connector 130 or the connecting assembly 120 is damaged, the corresponding damaged structure can be flexibly replaced. In other embodiments, the connector 130 and the connecting assembly 120 can also be fixedly connected, which is not limited in the present application.

[0075] In addition, in some embodiments, reference Figure 1 and Figure 5 As shown, the box body 110 has a accommodating cavity 111, which is used to accommodate the chain 250 of the electric hoist 200. A guide member 112 is arranged on the same side of the box body 110 as the connecting member 130. The guide member 112 is connected to the accommodating cavity 111 and is inclined toward the connecting member 130.

[0076] The box body 110 is provided with an upper opening along the Z direction, and the opening is connected with the accommodating chamber 111, so as to facilitate the arrangement of the accommodating chamber 111 and the chain 250 therein through the opening, wherein a guide member 112 is provided on the side of the box body 110 corresponding to the connecting member 130 along the Y direction, so that the guide member 112 is tilted upward along the Z direction so as to point to the electric hoist 200, so as to facilitate the chain 250 to enter and exit the accommodating chamber 111 under the action of the guide member 112, thereby ensuring the stable operation of the electric hoist 200.

[0077] In this embodiment, the guide member 112 is a guide tube inclined toward the electric hoist 200. In other embodiments, the guide member 112 can also be set as a guide groove plate or other structure inclined toward the electric hoist 200, and the present application does not impose any limitation on this.

[0078] The embodiment of the present application further provides a lifting device, including an electric hoist 200 and a chain box 100 in any of the above embodiments, wherein the chain box 100 is connected to the electric hoist 200.

[0079] The chain box 100 has been described in detail in the above embodiments and will not be described again herein.

[0080] The lifting device provided by the embodiment of the present application is provided with a chain box 100, and the chain box 100 is provided with a connecting assembly 120 and a connecting piece 130 on the box body 110, so that the connecting assembly 120 is connected to the mounting beam 300 of the electric hoist 200, and the connecting assembly 120 is connected to the electric hoist 200 through the connecting piece 130. The box body 110 is directly connected to the mounting beam 300 through the connecting assembly 120, that is, the box body 110 is directly hung on the mounting beam 300, so as to prevent the vibration or shaking of the electric hoist 200 from affecting the box body 110, and the connecting assembly 120 is connected to the electric hoist 200 through the connecting piece 130, so that the connection between the chain box 100 and the electric hoist 200 can be stable and reliable, and the weight distribution of the chain 250 can be more uniform. This avoids hanging the chain box 100 under the electric hoist 200 by bolts, thereby preventing the chain box 100 from shaking when the electric hoist 200 or equipment such as a fan is running, and applying reciprocating shear force to the bolts to cause the bolts to wear and break, thereby preventing the chain box 100 from falling off and improving the safety of the lifting device.

[0081] It should be noted that the phrases "one embodiment", "an embodiment", "an exemplary embodiment", "some embodiments", etc. mentioned in the specification indicate that the described embodiments may include certain features, structures or characteristics, but not every embodiment may include the certain features, structures or characteristics. In addition, such phrases do not necessarily refer to the same embodiment. In addition, when describing certain features, structures or characteristics in conjunction with an embodiment, it is within the knowledge of those skilled in the art to implement such features, structures or characteristics in conjunction with other embodiments, whether explicitly or not explicitly described.

[0082] In general, terms should be understood, at least in part, by the context in which they are used. For example, the term "one or more" as used herein may be used to describe any feature, structure, or characteristic in a singular sense, or may be used to describe a combination of features, structures, or characteristics in a plural sense, depending, at least in part, on the context. Similarly, terms such as "a," "an," or "the" may also be understood to convey singular usage or to convey plural usage, depending, at least in part, on the context.

[0083] It should be easily understood that “on,” “above,” and “over,” in the embodiments of the present application should be interpreted in the broadest manner, so that “on” not only means “directly on something,” but also includes the meaning of “on something” with intermediate features or layers therebetween, and “above” or “over” not only includes the meaning of “above something” or “over,” but may also include the meaning of “above something” or “over” with no intermediate features or layers therebetween (i.e., directly on something).

[0084] In addition, spatially relative terms, such as "below," "below," "below," "above," "above," etc., may be used herein for ease of description to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation shown in the figures. The device may have other orientations (rotated 90° or at other orientations), and the spatially relative descriptors used herein may likewise be interpreted accordingly.

[0085] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A chain box (100) for accommodating a chain (250) of an electric hoist (200), characterized in that: The electric hoist comprises a box (110), a connecting component (120) and a connecting piece (130), wherein the connecting component (120) is arranged on the box (110), the connecting component (120) is used for being slidably connected to a mounting beam (300) of the electric hoist (200), and the connecting piece (130) is arranged on the connecting component (120), and the connecting piece (130) is used for being connected to the electric hoist (200).

2. The chain box (100) according to claim 1, characterized in that: The connection assembly (120) comprises an extension member (121) and a rolling member (122); the extension member (121) is arranged on the box body (110); the rolling member (122) is rotatably arranged on the extension member (121); and the rolling member (122) is used for rolling connection with the mounting beam (300).

3. The chain box (100) according to claim 2, characterized in that: The extension member (121) comprises a first connecting section (1211), a second connecting section (1212) and a third connecting section (1213); the second connecting section (1212) is arranged on one side of the first connecting section (1211); the third connecting section (1213) is arranged on a side of the second connecting section (1212) away from the first connecting section (1211); the first connecting section (1211) is connected to the box body (110); the second connecting section (1212) is used for hanging with the mounting beam (300); and the rolling member (122) is arranged on the third connecting section (1213).

4. The chain box (100) according to claim 3, characterized in that: The connecting assembly (120) further comprises a lubricating member (123) and an elastic member (124); the second connecting section (1212) is bent to form a mounting groove; the notch of the mounting groove is used to be hooked with the mounting beam (300); the elastic member (124) and the lubricating member (123) are both located in the mounting groove; the elastic member (124) elastically abuts against the lubricating member (123); and the lubricating member (123) is used to slidably abut against the mounting beam (300).

5. The chain box (100) according to claim 3, characterized in that: Two extension pieces (121) are provided, and the two extension pieces (121) are respectively connected to opposite sides of the box body (110), and the connecting piece (130) is provided corresponding to the extension piece (121); At least two rolling members (122) are provided, and at least two rolling members (122) are respectively located on two third connecting sections (1213).

6. The chain box (100) according to claim 5, characterized in that: The connection assembly (120) further comprises a limiting member (125) and an abutting member (126); the limiting member (125) is sequentially passed through the two first connection sections (1211) and abuts against the sides of the two first connection sections (1211) facing away from each other; the abutting member (126) is arranged on the limiting member (125) and abuts against the sides of the two first connection sections (1211) facing each other.

7. The chain box (100) according to any one of claims 2 to 6, characterized in that: The extension piece (121) and the box body (110) are integrally formed.

8. The chain box (100) according to any one of claims 1 to 6, characterized in that: The connecting member (130) is a rigid member, and the connecting member (130) is detachably connected to the connecting assembly (120).

9. The chain box (100) according to any one of claims 1 to 6, characterized in that: The box (110) has a receiving cavity (111), and the receiving cavity (111) is used to receive the chain (250) of the electric hoist (200). The box (110) is provided with a guide member (112) on the same side as the connecting member (130). The guide member (112) is communicated with the receiving cavity (111) and is arranged to be inclined toward the connecting member (130).

10. A lifting device, characterized in that: It comprises an electric hoist (200) and a chain box (100) according to any one of claims 1 to 9, wherein the chain box (100) is connected to the electric hoist (200).

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