Rope guiding device and tower crane

Abstract

The application discloses a rope supporting device and a tower crane. The rope supporting device comprises a rope supporting bracket, a roller supporting bracket and a buffer assembly. The rope supporting bracket is provided with a rope supporting roller. The lower end of the roller supporting bracket is arranged at the end of the rope supporting bracket, and the upper end of the roller supporting bracket is provided with a hanging roller set and a side sliding roller set. The hanging roller set is used for being hung on a hoisting arm, and the side sliding roller set is used for being in contact with the side of the hoisting arm. The buffer assembly is arranged on at least one of the hanging roller set and the side sliding roller set and is used for being in abutment with a load trolley. The buffer assembly can effectively absorb impact load, thereby prolonging the service life of the rope supporting device and improving the reliability of the rope supporting device.

Description

Technical Field

[0001] This application belongs to the field of crane technology, specifically relating to a rope-supporting device and a tower crane. Background Technology

[0002] Currently, medium and large tower cranes are gaining an increasingly larger market share. Due to the long jib and large hoisting wire rope of large tower cranes, the hoisting wire rope tends to sag under its own weight when unloaded, especially in large tower cranes with long jibs and thick hoisting wire ropes. During the tower crane's rotation, the sagping hoisting wire rope can easily snag on buildings or other obstacles below the crane.

[0003] Therefore, a rope support device needs to be installed on the crane boom to reduce the sag of the hoisting wire rope. The rope support device needs to collide with the trolley and be propelled by the trolley to move. When the trolley collides with the rope support device at high speed, there is a large impact force and vibration, which makes the rope support device easy to be damaged. Utility Model Content

[0004] In view of the above-mentioned defects or deficiencies, this application provides a rope-supporting device and a tower crane, which aims to solve the technical problem that the rope-supporting device is easily damaged when the load trolley collides with the rope-supporting device at high speed, resulting in large impact force and vibration.

[0005] To achieve the above objectives, this application provides a rope-supporting device, which includes a rope-supporting bracket, a roller bracket, and a buffer assembly. The rope-supporting bracket is equipped with a rope-supporting roller; the lower end of the roller bracket is located at the end of the rope-supporting bracket, and the upper end of the roller bracket is equipped with a mounting roller assembly and a side-sliding roller assembly. The mounting roller assembly is used to mount onto the crane boom, and the side-sliding roller assembly is used to contact the side of the crane boom; the buffer assembly is located on at least one of the mounting roller assembly and the side-sliding roller assembly and is used to abut against the load-bearing trolley.

[0006] In this embodiment of the application, the buffer assembly includes a spring module and a buffer block. One end of the spring module is connected to at least one of the mounting roller assembly and the side sliding roller assembly facing the side of the load-bearing trolley, and the other end of the spring module is connected to the buffer block, which is used to abut against the load-bearing trolley.

[0007] In this embodiment of the application, the spring module includes a first connecting seat, a second connecting seat and a buffer spring. The two ends of the buffer spring are welded to the first connecting seat and the second connecting seat respectively. The first connecting seat is connected to at least one of the mounting roller group and the side sliding roller group facing the side of the load-bearing trolley. The second connecting seat is connected to the buffer block.

[0008] In this embodiment of the application, the first connecting seat is detachably connected to at least one of the mounting roller group and the side sliding roller group on the side facing the load-bearing trolley, and the second connecting seat is detachably connected to the buffer block.

[0009] In this embodiment, the mounting roller assembly or the side-sliding roller assembly is provided with a mounting end plate. The first connecting seat and the second connecting seat both include a connecting plate portion and a connecting rod portion located on the side of the connecting plate portion facing the buffer spring. The connecting rod portion has a threaded hole. Both ends of the buffer spring are sleeved on the outside of the connecting rod portion and welded to the connecting plate portion. The buffer assembly also includes two fasteners. One fastener passes through the mounting end plate and is threadedly connected to the threaded hole of the first connecting seat. The other fastener passes through the buffer block and is threadedly connected to the threaded hole of the second connecting seat.

[0010] In the embodiments of this application, both the first connecting seat and the second connecting seat further include a guide ring portion, which is connected to and encloses the outer edge of the connecting plate portion to form an installation space that is laterally fitted with the buffer spring.

[0011] In this embodiment, the first connecting seat further includes an anti-rotation protrusion, which is connected to the outer edge of the connecting plate and located on the side of the connecting plate away from the buffer spring. An anti-rotation opening is provided on the mounting end plate for the anti-rotation protrusion to extend into.

[0012] In this embodiment of the application, the buffer block has a clearance groove on the side facing the load-bearing trolley, and the fastener is located in the clearance groove.

[0013] In this embodiment of the application, the side-sliding roller assembly includes two side-sliding mounting plates arranged sequentially at intervals along the height direction of the roller bracket and a side-sliding roller body placed between the two side-sliding mounting plates. The end of each side-sliding mounting plate away from the roller bracket is provided with a mounting end plate, and a buffer assembly is provided on the mounting end plate.

[0014] In this embodiment of the application, the rope support roller includes a first rope support roller and a second rope support roller. The first rope support roller and the second rope support roller are respectively arranged to protrude toward opposite sides of the rope support bracket to form a clearance space with the rope support bracket.

[0015] In this embodiment, a reinforcing rod is provided between the rope support bracket and the roller support bracket.

[0016] In addition, this application also provides a tower crane, which includes a lifting boom, a load trolley, and a rope-supporting device as described above. The load trolley is capable of moving and pushing the rope-supporting device along the lifting boom.

[0017] Through the above technical solution, the rope-supporting device provided in this application embodiment has the following beneficial effects:

[0018] In the technical solution of this application, a rope support bracket is equipped with a rope support roller, which is used to support the drooping hoisting wire rope to prevent it from getting caught on buildings or obstacles. A roller bracket extends vertically, and its lower end connects to the end of the rope support bracket to achieve installation and fixation. The upper end of the roller bracket is equipped with a mounting roller assembly and a side-sliding roller assembly. The mounting roller assembly is used to mount on the lifting boom and can roll relative to the top of the lifting boom, allowing the rope support device to move more easily along the lifting boom. The side-sliding roller assembly is used to roll and engage with the side of the lifting boom, further facilitating the movement of the rope support device along the lifting boom.

[0019] At least one of the mounting roller assembly and the side-sliding roller assembly is equipped with a buffer assembly for contact with the load-bearing trolley. By incorporating the buffer assembly, impact loads can be effectively absorbed, thereby extending the service life of the rope-supporting device and improving its reliability.

[0020] Other features and advantages of the embodiments of this application will be described in detail in the following detailed description section. Attached Figure Description

[0021] The accompanying drawings are provided to further illustrate the embodiments of this application and form part of the specification. They are used together with the following detailed description to explain the embodiments of this application, but do not constitute a limitation on the embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without any inventive effort. In the drawings:

[0022] Figure 1 This is a schematic diagram of the connection structure between the rope-supporting device and the lifting arm according to an embodiment of this application from one view.

[0023] Figure 2 This is a schematic diagram of the rope-supporting device according to an embodiment of this application from one perspective;

[0024] Figure 3 This is a schematic diagram of the rope-supporting device according to an embodiment of this application from another perspective;

[0025] Figure 4 This is a schematic diagram of the connection structure between the rope-supporting device and the lifting arm from another perspective according to an embodiment of this application;

[0026] Figure 5 This is a schematic diagram of the connection structure between the rope-supporting device and the lifting arm from another perspective according to an embodiment of this application;

[0027] Figure 6 This is a schematic diagram of the rope-supporting device according to another embodiment of this application;

[0028] Figure 7This is a schematic diagram of the rope-supporting device according to an embodiment of this application from another perspective;

[0029] Figure 8 yes Figure 7 A magnified view of a portion of point A in the middle.

[0030] Explanation of reference numerals in the attached figures

[0031] Detailed Implementation

[0032] The specific embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this application.

[0033] The descriptions of directions such as "up", "down", "front", "back", "left", and "right" in this application are as follows: Figure 1 The directions shown are for reference only and are used to interpret the location. Figure 1 The relative positional relationship between the components in the shown posture is such that if the specific posture changes, the directional indication will also change accordingly.

[0034] The rope-supporting device and tower crane of this application are described below with reference to the accompanying drawings.

[0035] Please see Figure 1Taking a flat-head crane boom 300 as an example (not limited to flat-head crane boom 300), the working principle of the rope-supporting device 100 is explained. The rope-supporting device 100 is used to support the drooping lifting wire rope. The rope-supporting device 100 on the front side of the load trolley 200 is the first rope-supporting device 100, which can be placed in the middle of the crane boom 300. The rope-supporting device 100 on the rear side of the load trolley 200 is the second rope-supporting device 100, which can be placed at the base of the crane boom 300. The first rope-supporting device 100 and the second rope-supporting device 100 are connected by a connecting rope. When the load trolley 200 moves between the first rope-supporting device 100 and the second rope-supporting device 100, the first rope-supporting device 100 and the second rope-supporting device 100 are stationary, and the drooping lifting wire rope is supported by the first rope-supporting device 100. When the trolley 200 travels rapidly to the position of the first rope-supporting device 100, it will collide with the first rope-supporting device 100. The trolley 200 will then push the first rope-supporting device 100 forward along the boom 300. The first rope-supporting device 100 will then pull the second rope-supporting device 100 along the connecting rope. When the trolley 200 pushes the first rope-supporting device 100 to the end of the boom 300, the second rope-supporting device 100 is pulled to the middle of the boom 300, at which point the drooping hoisting wire rope is supported by the second rope-supporting device 100. By cooperating with the rope-supporting device 100, the trolley 200 can support the drooping hoisting wire rope, reducing its sag and preventing it from getting caught on buildings or other obstacles below the tower crane.

[0036] However, when the trolley 200 impacts the rope-supporting device 100 at a high speed, its kinetic energy will be applied to the rope-supporting device 100 in the form of an instantaneous impact, making the rope-supporting device 100 easily damaged.

[0037] like Figures 2 to 4 As shown, this application provides a rope-supporting device 100, which includes a rope-supporting bracket 10, a roller bracket 20, and a buffer assembly 30. The rope-supporting bracket 10 is provided with a rope-supporting roller 11; the lower end of the roller bracket 20 is located at the end of the rope-supporting bracket 10, and the upper end of the roller bracket 20 is provided with a mounting roller assembly 21 and a side-sliding roller assembly 22. The mounting roller assembly 21 is used to mount on the lifting arm 300, and the side-sliding roller assembly 22 is used to contact the side of the lifting arm 300; the buffer assembly 30 is located on at least one of the mounting roller assembly 21 and the side-sliding roller assembly 22 and is used to abut against the load trolley 200.

[0038] The rope support bracket 10 is equipped with a rope support roller 11, which supports the drooping hoisting wire rope to prevent it from getting caught on buildings or obstacles. A roller bracket 20 extends vertically, and its lower end connects to the end of the rope support bracket 10 for installation and fixation. The upper end of the roller bracket 20 is equipped with a mounting roller assembly 21 and a side-sliding roller assembly 22. The mounting roller assembly 21 is mounted on the lifting boom 300 and can roll relative to the top of the lifting boom 300, allowing the rope support device 100 to move more easily along the lifting boom 300. The side-sliding roller assembly 22 engages with the side of the lifting boom 300 in rolling contact, further facilitating the movement of the rope support device 100 along the lifting boom 300.

[0039] At least one of the mounting roller assembly 21 and the side-sliding roller assembly 22 is provided with a buffer assembly 30, which is used to abut against the load trolley 200. By setting the buffer assembly 30, the impact load can be effectively absorbed, thereby extending the service life of the rope-supporting device 100 and improving the reliability of the rope-supporting device 100.

[0040] It is understandable that, such as Figure 6 As shown, the buffer assembly 30 can be mounted on the roller assembly 21. Figure 7 As shown, the buffer assembly 30 can also be mounted on the side-sliding roller assembly 22. Alternatively, both the side-sliding roller assembly 22 and the mounting roller assembly 21 can have buffer assemblies 30. The position of the buffer assembly 30 can be flexibly adjusted according to actual needs. Specifically, a protruding vibration damping contact block 201 can be provided on the side of the load-bearing trolley 200, and the buffer assembly 30 is positioned corresponding to the vibration damping contact block 201. For ease of description, the following example illustrates the buffer assembly 30 mounted on the side-sliding roller assembly 22.

[0041] In the embodiments of this application, please refer to Figure 7 and Figure 8 The buffer assembly 30 includes a spring module 40 and a buffer block 50. One end of the spring module 40 is connected to at least one of the mounting roller assembly 21 and the side sliding roller assembly 22 on the side facing the load trolley 200. The other end of the spring module 40 is connected to the buffer block 50, which is used to abut against the load trolley 200.

[0042] One end of the spring module 40 is connected to at least one of the mounting roller assembly 21 and the side-sliding roller assembly 22 facing the side of the load-bearing trolley 200 to achieve the installation and fixation of the spring module 40. The other end of the spring module 40 is connected to the buffer block 50, which is used to abut against the load-bearing trolley 200. When the load-bearing trolley 200 collides with the rope-supporting device 100, the load-bearing trolley 200 first abuts against the buffer block 50, which initially buffers and reduces the impact force. Then, the impact force of the load-bearing trolley 200 is transmitted to the spring module 40, causing the spring module 40 to deform to absorb the impact force, further buffering and damping.

[0043] In the embodiments of this application, please refer to Figure 7 and Figure 8 The spring module 40 includes a first connecting seat 41, a second connecting seat 42 and a buffer spring 43. The two ends of the buffer spring 43 are welded to the first connecting seat 41 and the second connecting seat 42 respectively. The first connecting seat 41 is connected to at least one of the mounting roller group 21 and the side sliding roller group 22 on the side facing the load trolley 200. The second connecting seat 42 is connected to the buffer block 50.

[0044] The first connecting seat 41 is welded to one end of the buffer spring 43, and the first connecting seat 41 is connected to the side of the side sliding roller assembly 22 facing the load trolley 200. By setting the first connecting seat 41, the contact area between the spring module 40 and the side sliding roller assembly 22 is increased, thereby improving the connection stability and reliability between the spring module 40 and the side sliding roller assembly 22.

[0045] The second connecting seat 42 is welded to the other end of the buffer spring 43, and the second connecting seat 42 is connected to the buffer block 50. By setting the second connecting seat 42, the contact area between the spring module 40 and the buffer block 50 is increased, thereby improving the connection stability and reliability between the spring module 40 and the side sliding roller assembly 22.

[0046] In the embodiments of this application, please refer to Figure 7 and Figure 8 The first connecting seat 41 is detachably connected to at least one of the mounting roller group 21 and the side sliding roller group 22 on the side facing the load trolley 200, and the second connecting seat 42 is detachably connected to the buffer block 50.

[0047] The first connecting seat 41 is detachably connected to the side of the side sliding roller assembly 22 facing the load trolley 200, and the second connecting seat 42 is detachably connected to the buffer block 50, which facilitates the replacement of the spring module 40 after wear, making the use of the spring module 40 more flexible and convenient, and improving the flexibility of the use of the spring module 40.

[0048] Specifically, detachable connections can be achieved using bolts, rivets, clips, or other structures.

[0049] In the embodiments of this application, please refer to Figure 7 and Figure 8 The mounting roller assembly 21 or the side-sliding roller assembly 22 is provided with a mounting end plate 221. The first connecting seat 41 and the second connecting seat 42 both include a connecting plate portion 411 and a connecting rod portion 412 located on the side of the connecting plate portion 411 facing the buffer spring 43. The connecting rod portion 412 has a threaded hole. Both ends of the buffer spring 43 are sleeved on the outside of the connecting rod portion 412 and welded to the connecting plate portion 411. The buffer assembly 30 also includes two fasteners 60. One fastener 60 passes through the mounting end plate 221 and is threadedly connected to the threaded hole of the first connecting seat 41. The other fastener 60 passes through the buffer block 50 and is threadedly connected to the threaded hole of the second connecting seat 42.

[0050] Both the first connecting seat 41 and the second connecting seat 42 include a connecting plate portion 411 and a connecting rod portion 412. The connecting rod portion 412 is located on the side of the connecting plate portion 411 facing the buffer spring 43, and the connecting rod portion 412 has a threaded hole extending horizontally. Both ends of the buffer spring 43 are sleeved on the connecting rod portion 412, so that the connecting rod portion 412 can play a certain guiding role in the elastic deformation of the buffer spring 43. The two ends of the buffer spring 43 are welded to the connecting plate portion 411 of the first connecting seat 41 and the second connecting seat 42 respectively to realize the installation of the buffer spring 43. One fastener 60 passes through the mounting end plate 221 on the side sliding roller assembly 22 and is threadedly connected to the threaded hole of the first connecting seat 41 to realize the detachable connection between the first connecting seat 41 and the side sliding roller assembly 22. The other fastener 60 passes through the buffer block 50 and is threadedly connected to the threaded hole of the second connecting seat 42 to realize the detachable connection between the second connecting seat 42 and the buffer block 50. Furthermore, the threaded connection has a self-locking function, making the connection more stable and reliable. By setting the connecting rod 412 and the fastener 60 to cooperate, a detachable connection can be achieved without affecting the elastic deformation of the buffer spring 43.

[0051] In the embodiments of this application, please refer to Figure 7 and Figure 8 Both the first connecting seat 41 and the second connecting seat 42 further include a guide ring portion 413, which is connected to the outer edge of the connecting plate portion 411 and encloses an installation space that is laterally fitted to the buffer spring 43.

[0052] Specifically, the guide ring portion 413 is connected to the outer edge of the connecting plate portion 411, and the guide ring portion 413 and the connecting plate portion 411 enclose an installation space. The installation space is laterally fitted with the buffer spring 43, and the elastic deformation of the buffer spring 43 can be guided by the installation space. Furthermore, the lateral fit between the installation space and the buffer spring 43 allows for the positioning of the buffer spring 43 during installation. The end of the buffer spring 43 can also be welded to the guide ring portion 413, increasing the welding area between the buffer spring 43 and the connecting seat and improving the connection strength.

[0053] In the embodiments of this application, please refer to Figure 7 and Figure 8 The first connecting seat 41 also includes an anti-rotation protrusion 414, which is connected to the outer edge of the connecting plate portion 411 and is located on the side of the connecting plate portion 411 away from the buffer spring 43. An anti-rotation opening 2211 is provided on the mounting end plate 221 for the anti-rotation protrusion 414 to extend into.

[0054] The anti-rotation protrusion 414 is connected to the outer edge of the connecting plate portion 411, and the anti-rotation protrusion 414 is located on the side of the connecting plate portion 411 away from the buffer spring 43. The anti-rotation protrusion 414 is used to extend into the anti-rotation port 2211 on the mounting end plate 221. By setting the anti-rotation protrusion 414 and the anti-rotation port 2211 to cooperate, the first connecting seat 41 is prevented from rotating relative to the mounting end plate 221, so that the connection between the first connecting seat 41 and the mounting end plate 221 is more stable and reliable.

[0055] Specifically, the first connecting seat 41 can be a one-piece molded part, that is, the connecting plate part 411, the connecting rod part 412, the guide ring part 413 and the anti-rotation protrusion 414 are integrally molded, which saves assembly steps and reduces assembly errors. The first connecting seat 41 can also be a split structure, which facilitates the replacement of parts after wear and provides greater flexibility in use.

[0056] In the embodiments of this application, please refer to Figure 7 and Figure 8 The buffer block 50 has a clearance groove 51 on the side facing the load trolley 200, and the fastener 60 is located in the clearance groove 51. By setting the clearance groove 51, the fastener 60 is prevented from protruding from the buffer block 50, thus avoiding direct collision between the load trolley 200 and the fastener 60.

[0057] In the embodiments of this application, please refer to Figure 7 and Figure 8 The side-sliding roller assembly 22 includes two side-sliding mounting plates 222 arranged sequentially at intervals along the height direction of the roller bracket 20, and a side-sliding roller body 223 placed between the two side-sliding mounting plates 222. The two side-sliding mounting plates 222 are provided with mounting end plates 221 at the ends away from the roller bracket 20, and buffer components 30 are provided on the mounting end plates 221.

[0058] Two side-sliding mounting plates 222 are sequentially spaced on the roller bracket 20 in a vertical direction. A side-sliding roller body 223 is rotatably positioned between the two side-sliding mounting plates 222 to facilitate the installation of the side-sliding roller body 223, which can roll relative to the side of the lifting boom 300. An end plate 221 is provided at the end of each side-sliding mounting plate 222 away from the roller bracket 20. A buffer assembly 30 is provided on the end plate 221. By connecting the two side-sliding mounting plates 222 with the end plate 221, the structural stability of the side-sliding roller assembly 22 is enhanced. Furthermore, the end plate 221 facilitates the installation of the buffer assembly 30.

[0059] In the embodiments of this application, please refer to Figure 2 The rope support roller 11 includes a first rope support roller 11a and a second rope support roller 11b. The first rope support roller 11a and the second rope support roller 11b are respectively protruding towards the opposite sides of the rope support bracket 10 to form a clearance space with the rope support bracket 10.

[0060] like Figure 2 As shown, the first rope-supporting roller 11a protrudes towards the front side of the rope-supporting bracket 10, so that a clearance space is formed between the first rope-supporting roller 11a and the rope-supporting bracket 10. The second rope-supporting roller 11b protrudes towards the rear side of the rope-supporting bracket 10, so that a clearance space is formed between the second rope-supporting roller 11b and the rope-supporting bracket 10.

[0061] Please see Figure 5 By creating clearance space to avoid the wire rope breakage prevention device 202 on the load trolley 200, the rope roller 11 can be prevented from interfering with the load trolley 200, making the use of the rope roller 11 and the load trolley 200 more stable and reliable.

[0062] Based on this, please refer to Figure 2 The first rope support roller 11a and the second rope support roller 11b both include a support roller 111 and two ear plates 112. The ear plate 112 includes a connected protruding plate portion 1121 and a clamping plate portion 1122. The protruding plate portion 1121 protrudes from the side of the rope support bracket 10. The support roller 111 is located between the protruding plate portions 1121 of the two ear plates 112. The protruding plate portion 1121 and the clamping plate portion 1122 form a clamping groove 1123 for the rope support bracket 10 to extend into.

[0063] The protruding plate portion 1121 protrudes from the side of the rope support bracket 10. The idler roller 111 is disposed between the protruding plate portions 1121 of the two ear plates 112, so that the idler roller 111 protrudes and avoids interference between the idler roller 111 and the load trolley 200. A locking groove 1123 is formed between the protruding plate portion 1121 and the locking plate portion 1122. The locking groove 1123 is used for the rope support bracket 10 to extend into. By setting the locking groove 1123 formed by the cooperation of the protruding plate portion 1121 and the locking plate portion 1122, the connection area between the ear plate 112 and the rope support bracket 10 is increased, thereby improving the connection strength between the rope roller 11 and the rope support bracket 10, so that the structure of the rope support device 100 is more stable and reliable.

[0064] Specifically, the groove wall of the mounting slot 1123 can be welded to the rope support 10 so that the connection strength between the ear plate 112 and the rope support 10 is high.

[0065] In the embodiments of this application, please refer to Figure 2 A reinforcing rod 12 is provided between the rope support bracket 10 and the roller support 20. By providing the reinforcing rod 12, the connection strength between the rope support bracket 10 and the roller support 20 is improved, thereby improving the structural strength of the rope support device 100 and making the structural stability of the rope support device 100 higher.

[0066] In addition, this application also provides a tower crane, which includes a lifting boom, a load trolley, and a rope-supporting device 100 as described above. The load trolley 200 is movable and can push the rope-supporting device along the lifting boom 300. Since the tower crane adopts all the technical solutions of the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0067] In the description of this application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0068] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0069] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0070] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A rope-supporting device, characterized in that, The rope-supporting device (100) includes: A rope support bracket (10) is provided with a rope roller (11); A roller bracket (20) is provided at the lower end of the rope support bracket (10), and the upper end of the roller bracket (20) is provided with a hanging roller assembly (21) and a side-sliding roller assembly (22). The hanging roller assembly (21) is used to hang on the lifting arm (300), and the side-sliding roller assembly (22) is used to contact the side of the lifting arm (300). A buffer assembly (30) is provided on at least one of the mounting roller assembly (21) and the side-sliding roller assembly (22) and is used to abut against the load trolley (200).

2. The rope-supporting device according to claim 1, characterized in that, The buffer assembly (30) includes a spring module (40) and a buffer block (50). One end of the spring module (40) is connected to at least one of the mounting roller assembly (21) and the side-sliding roller assembly (22) facing the side of the load-bearing trolley (200). The other end of the spring module (40) is connected to the buffer block (50), which is used to abut against the load-bearing trolley (200).

3. The rope-supporting device according to claim 2, characterized in that, The spring module (40) includes a first connecting seat (41), a second connecting seat (42), and a buffer spring (43). The two ends of the buffer spring (43) are welded to the first connecting seat (41) and the second connecting seat (42) respectively. The first connecting seat (41) is connected to at least one of the mounting roller assembly (21) and the side sliding roller assembly (22) on the side facing the load trolley (200). The second connecting seat (42) is connected to the buffer block (50).

4. The rope-supporting device according to claim 3, characterized in that, The first connecting seat (41) is detachably connected to at least one of the mounting roller assembly (21) and the side sliding roller assembly (22) facing the side of the load trolley (200), and the second connecting seat (42) is detachably connected to the buffer block (50).

5. The rope-supporting device according to claim 4, characterized in that, The mounting roller assembly (21) or the side-sliding roller assembly (22) is provided with a mounting end plate (221). The first connecting seat (41) and the second connecting seat (42) both include a connecting plate portion (411) and a connecting rod portion (412) located on the side of the connecting plate portion (411) facing the buffer spring (43). The connecting rod portion (412) is provided with a threaded hole. Both ends of the buffer spring (43) are sleeved on the outside of the connecting rod portion (412) and welded to the connecting plate portion (411). The buffer assembly (30) also includes two fasteners (60). One of the fasteners (60) passes through the mounting end plate (221) and is threadedly connected to the threaded hole of the first connecting seat (41). The other fastener (60) passes through the buffer block (50) and is threadedly connected to the threaded hole of the second connecting seat (42).

6. The rope-supporting device according to claim 5, characterized in that, Both the first connecting seat (41) and the second connecting seat (42) further include a guide ring portion (413), which is connected to the outer edge of the connecting plate portion (411) and surrounds it to form an installation space that is laterally fitted to the buffer spring (43).

7. The rope-supporting device according to claim 5, characterized in that, The first connecting seat (41) further includes an anti-rotation protrusion (414), which is connected to the outer edge of the connecting plate portion (411) and is located on the side of the connecting plate portion (411) away from the buffer spring (43). The mounting end plate (221) has an anti-rotation opening (2211) for the anti-rotation protrusion (414) to extend into. And / or, the buffer block (50) has a clearance groove (51) on the side facing the load trolley (200), and the fastener (60) is located in the clearance groove (51).

8. The rope-supporting device according to any one of claims 1 to 7, characterized in that, The side-sliding roller assembly (22) includes two side-sliding mounting plates (222) arranged sequentially at intervals along the height direction of the roller bracket (20) and a side-sliding roller body (223) placed between the two side-sliding mounting plates (222). The two side-sliding mounting plates (222) are provided with a mounting end plate (221) at one end away from the roller bracket (20), and the buffer assembly (30) is provided on the mounting end plate (221).

9. The rope-supporting device according to any one of claims 1 to 7, characterized in that, The rope support roller (11) includes a first rope support roller (11a) and a second rope support roller (11b). The first rope support roller (11a) and the second rope support roller (11b) are respectively protruding towards the opposite sides of the rope support bracket (10) to form a clearance space with the rope support bracket (10). And / or, a reinforcing rod (12) is provided between the rope support bracket (10) and the roller support bracket (20).

10. A tower crane, characterized in that, The tower crane includes a boom (300), a trolley (200), and a rope-supporting device according to any one of claims 1 to 9, wherein the trolley (200) is movable and can push the rope-supporting device (100) along the boom (300).

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