Mast of hoisting equipment and hoisting equipment

Abstract

The utility model relates to the technical field of hoisting equipment, and provides a mast of hoisting equipment and the hoisting equipment. The mast of the hoisting equipment comprises a mast body and a connecting part connected with the mast body, and the connecting part is suitable for being hinged to one of a variable-amplitude auxiliary arm, a fixed auxiliary arm and a main arm, so that the mast is suitable for different working conditions of at least one type of hoisting equipment. The mast of the hoisting equipment provided by the utility model is used for overcoming the defects of the mast in the prior art, the mast can be matched with any one of the variable-amplitude auxiliary arm, the fixed auxiliary arm and the main arm through the connecting part, and on the basis, the hoisting equipment does not need to replace a specific mast under different working conditions; according to the method, the limitation that masts need to be specially designed and manufactured for different working conditions can be broken through, the inventory management and logistics transportation cost is reduced, the use method of the masts can be simplified, the universality and flexibility of the masts can be improved, and the use cost of hoisting equipment can be effectively reduced for users.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting equipment, in particular to a mast of a lifting equipment and a lifting equipment. Background Art

[0002] Crawler cranes usually have standard working conditions and superlift working conditions. The standard working conditions are the working conditions without installing the superlift mast, such as the standard main boom condition, the standard luffing jib condition (or tower condition), and the standard fixed jib condition; the superlift working conditions are the superlift conditions with the superlift mast installed, such as the superlift main boom condition, the superlift luffing jib condition (or tower condition), and the superlift fixed jib condition. When in use, during the process of changing the working conditions, it is necessary to reinstall a new superlift mast, which results in the user having to purchase more masts when buying the product, increasing the user's usage cost. Summary of the Utility Model

[0003] A first aspect of the utility model provides a mast of a lifting equipment, which is used to solve the defects of the mast in the prior art. Through the connecting component, the mast can be adapted to any one of the luffing jib, the fixed jib, and the main boom. Based on this, when the lifting equipment is in different working conditions, there is no need to replace a specific mast, which simplifies the usage method of the mast, improves the versatility and flexibility of the mast, and for the user, can effectively reduce the usage cost of the lifting equipment.

[0004] A second aspect of the utility model provides a lifting equipment.

[0005] The mast of the lifting equipment provided by the utility model includes:

[0006] A mast body and a connecting component connected to the mast body. The connecting component is suitable for being hinged to one of the luffing jib, the fixed jib, and the main boom, so that the mast is suitable for different working conditions of at least one type of the lifting equipment.

[0007] According to the mast of the lifting equipment provided by the utility model, the different working conditions of the lifting equipment include the luffing jib condition and the fixed jib condition.

[0008] According to the mast of the lifting equipment provided by the utility model, the mast body includes a support body and a first pull plate. The first pull plate is arranged at one end of the support body, and the connecting component is arranged at the other end of the support body. The first pull plate is used for connecting with the main boom.

[0009] According to the mast of the lifting equipment provided by the present utility model, the support body includes an end connecting piece, a strengthening connecting piece, a first frame body and a second frame body. The first frame body and the second frame body are symmetrically arranged at both ends of the end connecting piece. One side of the strengthening connecting piece is connected to the first frame body, and the other side is connected to the second frame body, and the strengthening connecting piece is arranged at an interval from the end connecting piece;

[0010] The connecting component is arranged at one end of the first frame body and the second frame body away from the end connecting piece.

[0011] According to the mast of the lifting equipment provided by the present utility model, the connecting component includes a first joint and a second joint. The first joint is arranged at one end of the first frame body away from the end connecting piece, and the second joint is arranged at one end of the second frame body away from the end connecting piece.

[0012] According to the mast of the lifting equipment provided by the present utility model, the mast body further includes a second pull plate. The first pull plate and the second pull plate are symmetrically arranged on both sides of the support body. In the fixed auxiliary boom working condition, the second pull plate is used to connect with the fixed auxiliary boom.

[0013] According to the mast of the lifting equipment provided by the present utility model, there are two first pull plates, and the two first pull plates are symmetrically arranged along the midline of the support body;

[0014] And / or, there are two second pull plates, and the two second pull plates are symmetrically arranged along the midline of the support body.

[0015] According to the mast of the lifting equipment provided by the present utility model, the mast body further includes a pulley block. The pulley block is arranged on the end connecting piece. In the luffing auxiliary boom working condition, the pulley block is used to adjust the included angle between the mast and the front mast of the luffing auxiliary boom.

[0016] According to the mast of the lifting equipment provided by the present utility model, the mast body further includes a guiding pulley block. The guiding pulley block is arranged on the strengthening connecting piece. When a steel wire rope is threaded through the mast, the guiding pulley block is used to adjust the direction of the steel wire rope.

[0017] The lifting equipment provided by the present utility model includes the mast according to any one of the foregoing.

[0018] The mast of the lifting equipment provided by the embodiment of the present utility model can be adapted to any one of the luffing jib, fixed jib and main boom through the connecting components. In this way, in different working conditions of the lifting equipment, the same mast can be used, that is, the mast has versatility. This can break the limitation of specially designing and manufacturing masts for different working conditions, reduce the material and manufacturing costs of the masts, and also reduce the inventory management and logistics transportation costs. For users, it can effectively reduce the procurement cost of the lifting equipment; in addition, the mast with versatility promotes the standardization and modularization of the components of the lifting equipment, helps to improve the production efficiency of the lifting equipment, reduce the design and manufacturing costs, and is also convenient for future technical upgrades and improvements.

[0019] Compared with the prior art, the mast of the lifting equipment provided by the embodiment of the present utility model can adopt the same mast under different working conditions of the lifting equipment. In this way, under different working conditions of the lifting equipment, there is no need to replace a specific mast, which simplifies the usage method of the mast and improves the versatility and flexibility of the mast; in addition, when it is necessary to quickly change the working conditions of the lifting equipment, the mast with versatility can reduce the time required for replacing the mast, enable the lifting equipment to be put into new operations faster, and improve the overall operation efficiency; furthermore, the versatile mast means that the maintenance personnel only need to be familiar with the structure and maintenance method of one kind of mast, which simplifies the maintenance process and improves the maintenance efficiency. At the same time, if the mast is damaged and needs to be replaced, the versatile mast is easier to obtain and the replacement process is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0021] Figure 1 It is the front view of the mast of the lifting equipment provided by the embodiment of the present utility model.

[0022] Figure 2 It is the side view of the mast of the lifting equipment provided by the embodiment of the present utility model.

[0023] Figure 3 It is the structural schematic diagram of the lifting equipment provided by the embodiment of the present utility model under the luffing jib working condition.

[0024] Figure 4 It is one of the assembly schematic diagrams of the mast of the lifting equipment provided by the embodiment of the present utility model under the luffing jib working condition.

[0025] Figure 5 It is the second assembly schematic diagram of the mast of the lifting equipment provided by the embodiment of the present utility model under the luffing jib working condition.

[0026] Figure 6 It is the structural schematic diagram of the lifting equipment provided by the embodiment of the present utility model under the fixed jib working condition.

[0027] Figure 7 It is the first assembly schematic diagram of the mast of the lifting equipment provided by the embodiment of the present utility model under the fixed jib working condition.

[0028] Figure 8 It is the second assembly schematic diagram of the mast of the lifting equipment provided by the embodiment of the present utility model under the fixed jib working condition.

[0029] Reference numerals:

[0030] 10: Main machine; 20: Main boom; 21: Lower section of main boom; 22: Extension section of main boom; 23: Upper section of main boom; 30: Luffing jib; 31: Lower section of luffing jib; 32: Extension section of luffing jib; 33: Upper section of luffing jib; 34: Rear mast of luffing jib; 35: Front mast of luffing jib; 40: Fixed jib; 41: Lower section of fixed jib; 42: Extension section of fixed jib; 43: Upper section of fixed jib; 44: Mast of fixed jib;

[0031] 100: Mast; 110: Mast body; 111: Bracket body; 1111: End connecting piece; 1112: Reinforcing connecting piece; 1113: First frame body; 1114: Second frame body; 112: First pull plate; 113: Second pull plate; 114: Pulley block; 115: Guide pulley block; 120: Connecting component; 121: First joint; 122: Second joint. Detailed implementation manners

[0032] To make the objectives, technical solutions and advantages of the present utility model clearer, the technical solutions in the present utility model will be clearly and completely described below with reference to the accompanying drawings in the present utility model. Obviously, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0033] In the description of the embodiments of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the embodiments of the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0034] In the description of the embodiments of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "connected" and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0035] In the embodiments of the present utility model, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over", and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath", and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or simply indicates that the first feature has a lower horizontal height than the second feature.

[0036] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the embodiments of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0037] Figure 1 is the front view of the mast of the lifting equipment provided by the embodiments of the present utility model; Figure 2It is a side view of the mast of the lifting equipment provided by an embodiment of the present utility model.

[0038] Refer to Figure 1 and Figure 2 In a first aspect of an embodiment of the present utility model, a mast 100 of a lifting equipment is provided. The mast 100 of the lifting equipment includes a mast body 110 and a connecting component 120 connected to the mast body 110. The connecting component 120 is adapted to be hinged to one of a luffing jib 30, a fixed jib 40, and a main boom 20, so that the mast 100 is applicable to different working conditions of the lifting equipment; wherein, different working conditions of the lifting equipment include a luffing jib working condition and a fixed jib working condition.

[0039] Figure 3 It is a schematic structural view of the lifting equipment provided by an embodiment of the present utility model under the luffing jib working condition.

[0040] For ease of understanding, first, a brief introduction to the structure of the lifting equipment under different working conditions is given. Refer to Figure 3 , under the luffing jib working condition, the lifting equipment includes a main boom 20, a luffing jib 30, and a main machine 10 connected to the main boom 20. Among them, the main boom 20 includes a lower boom section 21, a telescopic boom section 22, and an upper boom section 23. The lower boom section 21 is hinged to the main machine 10. One side of the telescopic boom section 22 is connected to the lower boom section 21, and the other side is connected to the upper boom section 23. The upper boom section 23 is located at the upper end of the main boom 20.

[0041] Figure 4 It is one of the assembly schematic views of the mast of the lifting equipment provided by an embodiment of the present utility model under the luffing jib working condition; Figure 5 It is the second of the assembly schematic views of the mast of the lifting equipment provided by an embodiment of the present utility model under the luffing jib working condition.

[0042] Refer to Figures 3 to 5 , the luffing jib 30 includes a lower luffing jib section 31, a telescopic luffing jib section 32, an upper luffing jib section 33, a rear mast of the luffing jib 34, and a front mast of the luffing jib 35; specifically, the lower end of the lower luffing jib section 31 is hinged to the upper end of the upper boom section 23 of the main boom 20. The lower end of the telescopic luffing jib section 32 is connected to the upper end of the lower luffing jib section 31, and the upper end of the telescopic luffing jib section 32 is connected to the lower end of the upper luffing jib section 33.

[0043] At least one of the lower end of the luffing auxiliary boom front mast 35 and the lower end of the luffing auxiliary boom rear mast 34 is hinged to the luffing auxiliary boom lower boom 31 or the main boom upper boom 23. The upper end of the luffing auxiliary boom upper boom 33 is connected to the upper end of the luffing auxiliary boom front mast 35 through a tension plate or a cable. The upper ends of the luffing auxiliary boom front mast 35 and the luffing auxiliary boom rear mast 34 are connected through pulley blocks provided respectively. By changing the length of the steel wire rope between the pulley blocks, the included angle between the luffing auxiliary boom front mast 35 and the luffing auxiliary boom rear mast 34 can be adjusted. The upper end of the luffing auxiliary boom rear mast 34 is connected to the lower end of the main boom lower boom 21 through a tension plate or a cable.

[0044] Figure 6 It is a schematic structural diagram of the lifting equipment provided by the embodiment of the present utility model under the fixed auxiliary boom working condition.

[0045] Refer to Figure 6 , under the fixed auxiliary boom working condition, the lifting equipment includes a main boom 20, a fixed auxiliary boom 40 and a main machine 10 connected to the main boom 20. Among them, the main boom 20 includes a main boom lower boom 21, a main boom extension boom 22, and a main boom upper boom 23. The main boom lower boom 21 is hinged to the main machine 10. One side of the main boom extension boom 22 is connected to the main boom lower boom 21, and the other side is connected to the main boom upper boom 23. The main boom upper boom 23 is located at the upper part of the main boom 20.

[0046] Figure 7 It is one of the assembly schematic diagrams of the mast of the lifting equipment provided by the embodiment of the present utility model under the fixed auxiliary boom working condition; Figure 8 It is the second of the assembly schematic diagrams of the mast of the lifting equipment provided by the embodiment of the present utility model under the fixed auxiliary boom working condition.

[0047] Refer to Figures 6 to 8 , the fixed auxiliary boom 40 includes a fixed auxiliary boom lower boom 41, a fixed auxiliary boom extension boom 42, a fixed auxiliary boom upper boom 43 and a fixed auxiliary boom mast 44; among them, the fixed auxiliary boom 40 is hinged to the upper part of the main boom 20. Specifically, the fixed auxiliary boom lower boom 41 is hinged to the main boom upper boom 23. One end of the fixed auxiliary boom extension boom 42 is connected to the fixed auxiliary boom lower boom 41, and the other end is connected to the fixed auxiliary boom upper boom 43. The lower part of the fixed auxiliary boom mast 44 can be hinged to the fixed auxiliary boom lower boom 41 or the main boom upper boom 23. The upper part of the fixed auxiliary boom mast 44 is connected to the fixed auxiliary boom upper boom 43 and the main boom lower boom 21 respectively through a tension plate or a cable.

[0048] The mast 100 provided by the embodiment of the present utility model can be used as the luffing auxiliary boom rear mast 34 under the luffing auxiliary boom working condition and can be used as the fixed auxiliary boom mast 44 under the fixed auxiliary boom working condition. In other words, for lifting equipment of the same model, during use, the luffing auxiliary boom rear mast 34 used under the luffing auxiliary boom working condition can be interchanged with the fixed auxiliary boom mast 44 used under the fixed auxiliary boom working condition.

[0049] Referring to Figures 1 to 8 , it can be understood that for the mast 100 of the lifting device provided in the embodiment of the present utility model, the mast 100 can be adapted to any one of the luffing jib 30, the fixed jib 40 and the main boom 20 through the connecting component 120. In this way, in different working conditions of the lifting device, the same mast 100 can be adopted, that is, the mast 100 has universality. This can break the limitation of specially designing and manufacturing the mast 100 for different working conditions. Such a setting reduces the material and manufacturing costs of the mast 100, and also reduces the costs of inventory management and logistics transportation. For users, it can effectively reduce the procurement cost of the lifting device; in addition, the mast 100 with universality promotes the standardization and modularization of the components of the lifting device, helps to improve the production efficiency of the lifting device, reduces the design and manufacturing costs, and is also convenient for future technical upgrades and improvements.

[0050] Compared with the prior art, for the mast 100 of the lifting device provided in the embodiment of the present utility model, the same mast 100 can be adopted in different working conditions of the lifting device. In this way, in different working conditions, there is no need to replace a specific mast 100, which simplifies the usage method of the mast 100 and improves the universality and flexibility of the mast 100; in addition, when it is necessary to quickly change the working condition of the lifting device, the mast 100 with universality can reduce the time required to replace the mast 100, enabling the lifting device to be put into new operations faster and improving the overall operation efficiency; furthermore, the universality of the mast 100 means that the maintenance personnel only need to be familiar with the structure and maintenance method of one type of mast 100, which simplifies the maintenance process and improves the maintenance efficiency. At the same time, if the mast 100 is damaged and needs to be replaced, the mast 100 with universality is easier to obtain and the replacement process is also simpler.

[0051] Continuing to refer to Figure 1 and Figure 2 , in an alternative embodiment of the present utility model, the mast body 110 includes a support body 111 and a first pull plate 112. The first pull plate 112 is provided at one end of the support body 111, and the connecting component 120 is provided at the other end of the support body 111. The first pull plate 112 is used to connect with the main boom 20; it can be understood that with such a setting, whether in the luffing jib working condition or in the fixed jib working condition, the mast 100 can be connected to the lower section of the main boom 21, which can provide additional stability and support for the entire lifting device. Through this connection, it helps to balance and disperse the stress and load generated during the working process of the lifting device, and can ensure the stability and safety of the entire system. In an alternative embodiment of the present utility model, the first pull plate 112 can also be made of a steel wire rope. In other words, the first pull plate 112 can be a first steel wire rope, and specifically, it can be adaptively set according to the actual situation.

[0052] In an alternative embodiment of the present utility model, the support body 111 can be formed by splicing one or more of various profiles such as steel plates, steel pipes, and sections. Specifically, multiple components can be assembled by means of welding, bolt connection, etc. to form a solid support structure, that is, the support body 111. The detailed manufacturing method can refer to the prior art and will not be elaborated herein one by one.

[0053] Continuing to refer to Figure 1 , in an alternative embodiment of the present utility model, the support body 111 includes an end connector 1111, a reinforcement connector 1112, a first frame body 1113, and a second frame body 1114. The first frame body 1113 and the second frame body 1114 are symmetrically arranged at both ends of the end connector 1111. One side of the reinforcement connector 1112 is connected to the first frame body 1113, and the other side is connected to the second frame body 1114. At the same time, the reinforcement connector 1112 is also arranged parallel and spaced apart from the end connector 1111. From another perspective, the reinforcement connector 1112 and the end connector 1111 are arranged parallel and spaced apart between the first frame body 1113 and the second frame body 1114. The lengths of both the first frame body 1113 and the second frame body 1114 are L, and the specific value of L can be adaptively selected according to the actual situation to meet the use under different working conditions.

[0054] The connection method between the end connector 1111, the reinforcement connector 1112, the first frame body 1113, and the second frame body 1114 can be welding, clamping, or connection by fasteners, etc., and can be adaptively selected according to the actual situation; the connecting member 120 is arranged at one end of the first frame body 1113 and the second frame body 1114 away from the end connector 1111. In an alternative example of the present utility model, the end connector 1111 and the reinforcement connector 1112 can be a box structure formed by welding plate-shaped materials. On the one hand, this can facilitate the connection with the first frame body 1113 and the second frame body 1114, and on the other hand, it can reduce the weight and achieve the purpose of lightweight design.

[0055] It can be understood that the first frame body 1113 and the second frame body 1114 can support each other by setting the end connector 1111. Compared with the structure of a single support rod in the prior art, such a setting can effectively improve the strength and stability of the support body 111, increase the overall structural strength of the support body 111, enable the support body 111 to withstand greater loads and stresses, and improve the load-bearing capacity and durability of the overall equipment.

[0056] Furthermore, by providing a reinforcing connecting member 1112 between the first frame body 1113 and the second frame body 1114, more support points can be provided between the first frame body 1113 and the second frame body 1114, thereby increasing the stability of the entire structure. On the other hand, the reinforcing connecting member 1112 helps to evenly distribute the load across the entire structure of the support body 111, reducing the pressure on a single connection point, and thus reducing the risk of structural failure or damage due to excessive local stress.

[0057] Continue to refer to Figure 1 In an alternative embodiment of the present utility model, the connecting member 120 includes a first joint 121 and a second joint 122. The first joint 121 is provided at one end of the first frame body 1113 away from the end connecting member 1111, and the second joint 122 is provided at one end of the second frame body 1114 away from the end connecting member 1111. The first joint 121 and the second joint 122 have the same structure, and the first joint 121 and the second joint 122 are the core components for the mast 100 to be adapted to the luffing jib 30, the fixed jib 40, and the main boom 20.

[0058] Among them, the specification dimensions of the first joint 121 and the second joint 122 play an important role. The important dimensions of the first joint 121 and the second joint 122 include: the center distance between the first joint 121 and the second joint 122, that is, the pitch K; the hole diameter ΦD3 of the first joint 121 and the second joint 122; the pitch M between the first joint 121 and the second joint 122. These dimensions can be adaptively considered and set according to the actual situation, such as the compatibility at the connection, the transmission of the load, the strength at the connection, the ease of operation, the ease of manufacturing and maintenance, and the optimal utilization of space. The specific size is not further limited herein.

[0059] It can be understood that by providing the first joint 121 and the second joint 122, when the mast body 110 is connected to the luffing jib 30, the fixed jib 40, or the main boom 20, more support points can be added between the two connected members, which helps to increase the stability of the entire structure. On the other hand, the two joints help to evenly distribute the load at the connection across the first frame body 1113 and the second frame body 1114. Compared with the single-bar connection method in the prior art, it can ensure a more balanced distribution of the load on the support body 111, reduce the pressure on a single connection point, and thus reduce the risk of damage due to excessive local stress.

[0060] Continue to refer to Figure 2, in an alternative embodiment of the present utility model, the mast body 110 further includes a second pull plate 113. The first pull plate 112 and the second pull plate 113 are symmetrically arranged on both sides of the support body 111. In the fixed jib working condition, the second pull plate 113 is used to connect with the fixed jib 40. It can be understood that with such an arrangement, in the fixed jib working condition, the mast 100 can be connected to the upper section arm 43 of the fixed jib, which can provide additional stability and support for the entire lifting device. Through this connection, it helps to balance and disperse the stress and load generated by the device during operation, and can ensure the stability and safety of the entire system. In an alternative embodiment of the present utility model, the second pull plate 113 can also be made of a steel wire rope. In other words, the second pull plate 113 can be a second steel wire rope. Specifically, it can be adaptively set according to the actual situation.

[0061] In an alternative embodiment of the present utility model, the first pull plate 112 and the second pull plate 113 can also be rotatably arranged relative to the support body 111. Specifically, the first pull plate 112 and the second pull plate 113 can be respectively rotatably fitted with the end connector 1111. It can be understood that with such an arrangement, in the non-operating state, the first pull plate 112 and the second pull plate 113 can be rotated to the inner side of the end connector 1111, which can reduce the volume of the mast 100 and facilitate the transportation and storage of the mast 100.

[0062] Continue to refer to 1 and Figure 2 , in an alternative embodiment of the present utility model, there are two first pull plates 112, and the two first pull plates 112 are symmetrically arranged along the midline of the support body 111; it can be understood that with such an arrangement, a connection point can be added to the connection between the mast 100 and the lower section arm 21 of the main boom, which helps to balance and disperse the stress and load generated by the device during operation, reduces the pressure on a single pull plate, and can ensure the stability and safety of the entire system; further, the symmetrical arrangement of the two first pull plates 112 can ensure a more balanced distribution of the load on the support body 111.

[0063] Continue to refer to 1 and Figure 2 , in an alternative embodiment of the present utility model, there are two second pull plates 113, and the two second pull plates 113 are symmetrically arranged along the midline of the support body 111; it can be understood that with such an arrangement, a connection point can be added to the connection between the mast 100 and the upper section arm 43 of the fixed jib, which helps to balance and disperse the stress and load generated by the device during operation, reduces the pressure on a single pull plate, and can ensure the stability and safety of the entire system; further, the symmetrical arrangement of the two second pull plates 113 can ensure a more balanced distribution of the load on the support body 111.

[0064] Continue to refer to Figure 1, in an alternative embodiment of the present utility model, the mast body 110 further includes a pulley block 114. The pulley block 114 is provided at the end connecting member 1111. The pulley block 114 is not used under the condition of the fixed auxiliary boom. Under the condition of the luffing boom, when the mast 100 serves as the rear mast 34 of the luffing auxiliary boom, the pulley block 114 on the mast 100 can be connected to the pulley block on the front mast 35 of the luffing auxiliary boom through a steel wire rope. Further, by adjusting the length of the steel wire rope, the included angle between the mast 100 and the front mast 35 of the luffing auxiliary boom can be adjusted.

[0065] Continue to refer to Figure 1 , in an alternative embodiment of the present utility model, the mast body 110 further includes a guiding pulley block 115. The guiding pulley block 115 is provided at the strengthening connecting member 1112. When a steel wire rope is threaded through the mast 100, the guiding pulley block 115 is used to adjust the direction of the steel wire rope. The guiding pulley block 115 can guide the steel wire rope to move along a predetermined path, ensuring that the steel wire rope moves in the correct direction and avoiding deviation or entanglement of the steel wire rope; on the other hand, the guiding pulley block 115 can also reduce the mutual wear between the steel wire rope and the mast body 110, and can improve the service life of the mast body 110.

[0066] Refer to Figure 3 and Figure 6 , in a second aspect of the embodiments of the present utility model, a lifting device is provided. The lifting device includes the mast 100 described in any one of the foregoing embodiments. It can be understood that the lifting device provided in this embodiment, because it includes the mast 100 described in any one of the foregoing embodiments, thus also has the beneficial effects possessed by any one of the foregoing embodiments of the mast 100. For specific effects, please refer to the foregoing description, and will not be elaborated herein.

[0067] It should be noted that the technical solutions in the various embodiments of the present utility model can be combined with each other, but the basis for the combination is that those skilled in the art can implement it; when the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist, that is, it does not belong to the protection scope of the present utility model either.

[0068] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present utility model, rather than to limit it; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present utility model.

Claims

1. A mast of a lifting device, characterized in that, Comprising: A mast body (110) and a connecting member (120) connected to the mast body (110), the connecting member (120) being adapted to be hinged to one of a luffing jib (30), a fixed jib (40), and a main boom (20) so that the mast (100) is applicable to the luffing jib working condition and the fixed jib working condition of the lifting equipment of at least one model.

2. The mast of the lifting device according to claim 1, characterized in that, The mast body (110) includes a support body (111) and a first pull plate (112), the first pull plate (112) is provided at one end of the support body (111), the connecting member (120) is provided at the other end of the support body (111), and the first pull plate (112) is used for connecting with the main boom (20).

3. The mast of the lifting device according to claim 2, characterized in that, The support body (111) includes an end connecting member (1111), a strengthening connecting member (1112), a first frame body (1113), and a second frame body (1114), the first frame body (1113) and the second frame body (1114) are symmetrically arranged at both ends of the end connecting member (1111), one side of the strengthening connecting member (1112) is connected to the first frame body (1113), the other side is connected to the second frame body (1114), and the strengthening connecting member (1112) is spaced from the end connecting member (1111); The connecting member (120) is provided at one end of the first frame body (1113) and the second frame body (1114) away from the end connecting member (1111).

4. The mast of the lifting device according to claim 3, characterized in that, The connecting member (120) includes a first joint (121) and a second joint (122), the first joint (121) is provided at one end of the first frame body (1113) away from the end connecting member (1111), and the second joint (122) is provided at one end of the second frame body (1114) away from the end connecting member (1111).

5. The mast of the lifting device according to claim 3, characterized in that, The mast body (110) further includes a second pull plate (113), and in the fixed jib working condition, the second pull plate (113) is used for connecting with the fixed jib (40).

6. The mast of the lifting device according to claim 5, characterized in that, There are two first pull plates (112), and the two first pull plates (112) are symmetrically arranged along the midline of the support body (111); And / or, there are two second pull plates (113), and the two second pull plates (113) are symmetrically arranged along the midline of the support body (111).

7. The mast of the lifting device according to claim 5, characterized in that The mast body (110) further includes a pulley block (114), the pulley block (114) is provided at the end connecting member (1111), and in the luffing jib working condition, the pulley block (114) is used for adjusting the included angle between the mast (100) and the front mast (35) of the luffing jib.

8. The mast of the lifting equipment according to claim 5, characterized in that, The mast body (110) further includes a guide pulley block (115), the guide pulley block (115) is provided at the strengthening connecting member (1112), and when a steel wire rope is threaded through the mast (100), the guide pulley block (115) is used for adjusting the direction of the steel wire rope.

9. A lifting device, characterized in that, Including the mast (100) according to any one of the preceding claims 1 to 8.

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