Lifting mechanism and working machine

Abstract

The invention relates to the field of operation machinery, and discloses a lifting mechanism and operation machinery. The rotary speed reduction device is driven by the rotary power device and is provided with a speed reduction rotary output end; the lifting drum device comprises a drum shell, a drum shaft coaxially arranged in the drum shell and a connecting sleeve arranged between the drum shaft and the drum shell in a sleeving mode, the connecting sleeve and the drum shell are mutually fixed, the connecting sleeve and the drum shaft are in spline fit, and one end of the drum shaft and the speed reduction rotation output end are in detachable spline fit. The rotary speed reduction device and the lifting drum device can be rapidly disassembled and assembled under the condition that structural integrity is kept, the requirement for machining precision of the drum shell can be lowered, oil leakage and oil leakage of the rotary speed reduction device can be avoided, the time for on-site installation and debugging of the rotary speed reduction device can be completely saved, materials of a drum shaft can be saved, and the production cost is reduced. And the manufacturing and assembling difficulty of the lifting drum device can be reduced.

Description

Technical Field

[0001] The present application belongs to the technical field of operating machinery, and specifically relates to a lifting mechanism and an operating machinery. Background Art

[0002] Some operating machines used in the fields of metallurgy, mining, construction, etc. are equipped with a lifting mechanism. For example, a mechanical front shovel excavator is equipped with a lifting mechanism that can work together with a pushing mechanism to complete material excavation operations. More specifically, the lifting mechanism generally uses multiple motors as power sources, which drive the drum device to rotate after being decelerated by a planetary reducer, thereby driving the bucket to be lowered or lifted by releasing or recovering the wire rope on the drum.

[0003] However, the current lifting mechanism deeply bundles the planetary reducer and the drum device in the structure, resulting in a relatively complex overall manufacturing and assembly process route, and a cumbersome disassembly and maintenance process. The planetary reducer and the drum device cannot be disassembled independently, and each time the planetary reducer is reassembled, it takes a long time to debug it on site. Summary of the invention

[0004] The purpose of the present application is to provide a lifting mechanism and an operating machine, which can simplify the manufacture and assembly of the lifting mechanism, facilitate disassembly and maintenance, and eliminate the need for repeated debugging.

[0005] In order to achieve the above objectives, the present application provides a lifting mechanism, which includes:

[0006] Rotary power unit;

[0007] a rotation reduction device, driven by the rotation power device and provided with a reduction rotation output end; and

[0008] The lifting drum device includes a drum shell, a drum shaft coaxially arranged in the drum shell, and a connecting sleeve sleeved between the drum shaft and the drum shell. The connecting sleeve and the drum shell are fixed to each other, the connecting sleeve and the drum shaft form a spline fit, and one end of the drum shaft forms a detachable spline fit with the reduced rotation output end.

[0009] In some embodiments, the lifting drum device also includes a first annular plate and a first connecting component, the first annular plate is sleeved and fixed in the drum shell and is provided with an annular plate through hole, the outer peripheral wall of the connecting sleeve is provided with an annular protrusion, and the annular protrusion is provided with a protrusion through hole aligned with the annular plate through hole, the first connecting component includes a shear sleeve and a first bolt assembly, the shear sleeve is sleeved in the annular plate through hole and the protrusion through hole, and the first bolt assembly penetrates the shear sleeve and fixes the first annular plate and the annular protrusion.

[0010] In some embodiments, the lifting drum device also includes a retaining ring and a second connecting component, the outer peripheral wall of the drum shaft is provided with an annular groove portion, the retaining ring is sleeved on the annular groove portion and is provided with a retaining ring through hole, one end of the connecting sleeve abuts against the retaining ring and is provided with an end face through hole aligned with the retaining ring through hole, and the second connecting component connects the retaining ring through hole and the end face through hole.

[0011] In some embodiments, the spline on the barrel shaft that forms a spline fit with the connecting sleeve is a first spline, and the spline on the barrel shaft that forms a spline fit with the reduction rotation output end is a second spline, and the first spline and the second spline are continuously processed and formed.

[0012] In some embodiments, the lifting mechanism further comprises:

[0013] A rotating platform, wherein a platform support is provided on the top surface of the rotating platform;

[0014] An auxiliary support assembly, comprising a reel support detachably connected to the platform support and a bearing arranged on the reel support, one end of the drum shaft being connected to the deceleration rotation output end and the other end being connected to the bearing;

[0015] Wherein, when the drum support and the platform support are disassembled from each other, the drum support can rotate around the drum shaft through the bearing to avoid each other axially with the platform support, so that the lifting drum device can be disassembled axially from the deceleration rotation output end.

[0016] In some embodiments, the top of the platform support is provided with an arc-shaped avoidance opening and two support tops respectively located on both sides of the arc-shaped avoidance opening in the circumferential direction, and the reel support includes two support feet respectively connected to the two support tops in a detachable manner;

[0017] Among them, when the two support tops and the two support feet are removed, the reel support can rotate around the drum shaft through the bearing, so that when the lifting reel device is axially removed from the deceleration rotation output end, the reel support and the lifting reel device can pass through the arc-shaped avoidance opening in sequence along the axial direction.

[0018] In some embodiments, the lifting mechanism further comprises:

[0019] A rotating platform, wherein a platform support is provided on the top surface of the rotating platform, and the platform support is provided with a platform support through hole;

[0020] The auxiliary support assembly includes a reel support and a bearing arranged on the reel support, one end of the drum shaft is connected to the deceleration rotation output end and the other end is connected to the bearing, and the reel support is provided with a reel support through hole aligned with the platform support through hole;

[0021] The third connecting component includes a pin and a tightening sleeve, wherein the tightening sleeve is sleeved inside the through hole of the platform support and the through hole of the reel support, and the pin passes through the tightening sleeve and fixes the platform support and the reel support.

[0022] In some embodiments, two platform supports are provided, the two platform supports are spaced apart along the axial direction of the barrel shaft, and the reel support is arranged between the two platform supports.

[0023] In some embodiments, the splines on the barrel shaft, the connecting sleeve, and the reduced rotation output end are all involute splines.

[0024] A second aspect of the present application also provides a working machine, which includes the above-mentioned lifting mechanism.

[0025] In the present application, the rotary speed reducer of the lifting mechanism forms a detachable spline match with one end of the barrel shaft of the lifting drum device through its deceleration rotation output end, which simplifies the assembly method of the rotary speed reducer and the lifting drum device, so that the rotary speed reducer and the lifting drum device can be quickly disassembled and assembled while maintaining integrity, which can greatly reduce the difficulty of disassembly and assembly and improve the efficiency of disassembly and assembly. Since the outer surface of the barrel shell of the lifting drum device does not need to be used as the sealing surface of the rotary speed reducer, the processing accuracy requirements of the barrel shell can be reduced, thereby reducing the manufacturing difficulty and cost. During the disassembly and assembly process of the rotary speed reducer and the lifting drum device, the sealing performance of the rotary speed reducer is not affected, and oil seepage and oil leakage due to sealing failure can be avoided, which is conducive to improving reliability. In addition, the rotary speed reducer can complete the debugging work in the manufacturing plant, and there is no need to repeat the debugging when disassembling and assembling with the lifting drum device, which can completely save the time of on-site installation and debugging. Furthermore, the barrel shaft of the lifting drum device is connected to the barrel shell through a connecting sleeve, which reduces the shaft diameter of the barrel shaft, saves the material of the barrel shaft, and reduces the manufacturing difficulty compared to directly connecting the barrel shaft to the barrel shell. The connecting sleeve and the barrel shaft are matched by splines, which can not only ensure the torque transmission performance, but also simplify the assembly method and facilitate quick disassembly and assembly.

[0026] Other features and advantages of the embodiments of the present application will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings are used to provide a further understanding of the embodiments of the present application and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the embodiments of the present application, but do not constitute a limitation on the embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without creative work. In the drawings:

[0028] Figure 1 A schematic diagram of a lifting mechanism in a specific implementation manner of the present application;

[0029] Figure 2 for Figure 1 A cross-sectional view BB of the lifting mechanism in FIG.

[0030] Figure 3 for Figure 2 Schematic diagram of the barrel shaft, connecting sleeve and retaining ring;

[0031] Figure 4 for Figure 1 A partial cross-sectional view of the lifting mechanism in FIG.

[0032] Figure 5 for Figure 1 A partial exploded view of the lifting mechanism in FIG.

[0033] Figure 6 for Figure 1 Another partial exploded view of the lifting mechanism in FIG.

[0034] Description of Reference Numerals

[0035] 110 Rotational reduction device 120 Rotary platform

[0036] 130 Coupling 140 Rotating power device

[0037] 150 Brake 160 Lifting drum device

[0038] 170 third through-connection assembly 180 reel support

[0039] 121 platform support 161 barrel shaft

[0040] 162 shaft spline 163 connecting sleeve

[0041] 164 retaining ring 165 cylinder shell

[0042] 166 Shear sleeve DETAILED DESCRIPTION

[0043] The specific implementation of the present application is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present application, and is not used to limit the present application.

[0044] Reference Figures 1 to 6 The first exemplary embodiment of the present application provides a lifting mechanism, which can be used in working machinery (such as mechanical front shovel excavator, lifting equipment, etc.) in fields such as metallurgy, mining, and construction, and the lifting mechanism includes:

[0045] Rotary power device 140;

[0046] The rotation reduction device 110 is driven by the rotation power device 140 and is provided with a reduction rotation output end;

[0047] The lifting drum device 160 includes a drum shell 165, a drum shaft 161 coaxially arranged in the drum shell 165, and a connecting sleeve 163 sleeved between the drum shaft 161 and the drum shell 165. The connecting sleeve 163 and the drum shell 165 are fixed to each other, the connecting sleeve 163 and the drum shaft 161 form a spline fit, and one end of the drum shaft 161 forms a detachable spline fit with the reduction rotation output end.

[0048] Through the above-mentioned arrangement, when the lifting mechanism of the present application is working, the rotary power device 140 drives the rotary reduction device 110, so that the reduced rotation output end of the rotary reduction device 110 can rotate at a reduced speed relative to the rotary power device 140, and the reduced rotation output end can drive the cylinder shaft 161 to rotate, and the cylinder shaft 161 can transmit torque to the cylinder shell 165 through the connecting sleeve 163, thereby driving the cylinder shell 165 to rotate, thereby realizing the lifting operation function.

[0049] In particular, the rotary speed reducer 110 forms a detachable spline fit with one end of the cylindrical shaft 161 of the lifting drum device 160 through its deceleration rotation output end, which simplifies the assembly method of the rotary speed reducer 110 and the lifting drum device 160, so that the rotary speed reducer 110 and the lifting drum device 160 can be quickly disassembled and assembled while maintaining integrity, which can greatly reduce the difficulty of disassembly and assembly and improve the efficiency of disassembly and assembly. Since the outer surface of the cylindrical shell 165 of the lifting drum device 160 does not need to be used as the sealing surface of the rotary speed reducer 110, the processing accuracy requirements of the cylindrical shell 165 can be reduced, thereby reducing the manufacturing difficulty and cost. During the disassembly and assembly process of the rotary speed reducer 110 and the lifting drum device 160, the sealing of the rotary speed reducer 110 is not affected, and oil seepage and oil leakage due to sealing failure can be avoided, which is conducive to improving reliability. In addition, the rotary speed reducer 110 can complete the debugging work in the manufacturing plant, and there is no need to repeat the debugging when disassembling and assembling with the lifting drum device 160, which can completely save the time of on-site installation and debugging. Furthermore, the cylinder shaft 161 of the lifting drum device 160 is connected to the cylinder shell 165 through the connecting sleeve 163. Compared with directly connecting the cylinder shaft 161 to the cylinder shell 165, the shaft diameter of the cylinder shaft 161 is reduced, the material of the cylinder shaft 161 is saved, and the manufacturing difficulty is reduced. The connecting sleeve 163 and the cylinder shaft 161 are matched through splines, which can not only ensure the torque transmission performance, but also simplify the assembly method, and facilitate quick disassembly and assembly.

[0050] Moreover, the lifting mechanism of the present application adopts only a single rotary power device 140. Compared with the lifting mechanism of the prior art which uses multiple motors as power sources, it can simplify the control and avoid vibration and loss of control problems caused by speed difference or unbalanced load distribution when multiple motors are driven. When the rotary power device 140 adopts a motor, only one brake 150 needs to be configured. Therefore, it can not only reduce safety hazards, but also simplify the driving and braking structure of the lifting mechanism, reduce the number of components, and help optimize the spatial layout of the lifting mechanism.

[0051] In addition, as an example, the rotation reduction device 110 can use a planetary reducer with bevel gear transmission and two-stage planetary reduction. The structure of such a planetary reducer is mature and reliable, and can effectively improve the reliability of the lifting mechanism. For example, when the rotation power device 140 uses a motor and the rotation reduction device 110 uses a planetary reducer with bevel gear transmission and two-stage planetary reduction, one end of the input shaft of the planetary reducer can be connected to the motor through the coupling 130 and the other end can be connected to the brake 150.

[0052] In some embodiments, the lifting drum device 160 may further include a first annular plate and a first connecting assembly. Specifically, the first annular plate is sleeved and fixed in the cylinder shell 165 and is provided with an annular plate through hole, and the outer peripheral wall of the connecting sleeve 163 is provided with an annular protrusion, and the annular protrusion is provided with a protrusion through hole aligned with the annular plate through hole. In addition, the first connecting assembly includes a shear sleeve 166 and a first bolt assembly, the shear sleeve 166 is sleeved in the annular plate through hole and the protrusion through hole, and the first bolt assembly penetrates the shear sleeve 166 and fixes the first annular plate and the annular protrusion.

[0053] The shear sleeve 166 has the advantages of simple structure and convenient assembly and disassembly, can effectively absorb vibration and impact, is conducive to improving the torsion resistance of the lifting drum device 160, and can also ensure efficient and stable transmission of rotational power, enhance the reliability of the lifting drum device 160, and reduce maintenance frequency and cost. In addition, the first bolt assembly can effectively lock the first annular plate and the connecting sleeve 163 to prevent the two from loosening, further improving the stability and reliability of the lifting drum device 160.

[0054] In some embodiments, the lifting drum device 160 may further include a retaining ring 164 and a second connecting component, and an annular groove portion is provided on the outer peripheral wall of the cylinder shaft 161. Specifically, the retaining ring 164 is sleeved in the annular groove portion and is provided with a retaining ring through hole, one end of the connecting sleeve 163 abuts against the retaining ring 164 and is provided with an end surface through hole aligned with the retaining ring through hole, and the second connecting component penetrates the retaining ring through hole and the end surface through hole.

[0055] It can be seen that the retaining ring 164 of this embodiment can axially limit the connecting sleeve 163, which can effectively prevent the connecting sleeve 163 from deviating in the axial direction, thereby improving the stability and reliability of the lifting drum device 160. The second connecting component penetrates the retaining ring through hole and the end surface through hole to achieve the mutual fixation of the connecting sleeve 163 and the retaining ring 164, which has a simple and reliable structure. In this way, while ensuring the integrity of the barrel shaft 161, the connecting sleeve 163 and the retaining ring 164, the difficulty of assembly is reduced, and it is convenient for quick disassembly and assembly.

[0056] In some embodiments, the spline on the cylindrical shaft 161 that forms a spline match with the connecting sleeve 163 is a first spline, and the spline on the cylindrical shaft 161 that forms a spline match with the deceleration rotation output end is a second spline, and the first spline and the second spline can be formed by continuous processing (i.e., formed in one process). Figure 3A continuous shaft spline 162 can be formed on the outer circumferential wall of the cylindrical shaft 161 by continuous processing and forming. Matching this, the inner circumferential wall of the connecting sleeve 163 forms an internal spline that cooperates with the shaft spline 162. The deceleration rotation output end of the rotation reduction device 110 also forms an internal spline that cooperates with the shaft spline 162, thereby simplifying the design of the shaft spline 162 and the internal splines on the connecting sleeve 163 and the deceleration rotation output end, saving processing costs and time, and improving production efficiency.

[0057] In some embodiments, the lifting mechanism may further include:

[0058] A rotating platform 120, the top surface of which is provided with a platform support 121;

[0059] The auxiliary support assembly includes a reel support 180 detachably connected to the platform support 121 and a bearing disposed on the reel support 180, one end of the drum shaft 161 is connected to the deceleration rotation output end and the other end is connected to the bearing;

[0060] Among them, when the reel support 180 and the platform support 121 are disassembled from each other, the reel support 180 can rotate around the drum shaft 161 through the bearing to avoid each other axially with the platform support 121, so that the lifting reel device 160 can be disassembled axially from the deceleration rotation output end.

[0061] Through the arrangement of this embodiment, when the lifting drum device 160 needs to be replaced, it is only necessary to disassemble the drum support 180 and the platform support 121 from each other, and then rotate the drum support 180 around the drum shaft 161 to avoid each other axially with the platform support 121, so that the lifting drum device 160 can be removed as a whole axially from the reduction rotation output end without using lifting equipment to lift and remove the lifting drum device 160. Therefore, it is convenient for operators to perform the disassembly operation of the lifting drum device 160 on the rotating platform 120 with a compact space, which greatly reduces the difficulty of disassembly and improves the disassembly efficiency.

[0062] For example, refer to Figure 1 and Figure 5 The top of the platform support 121 may be provided with an arc-shaped avoidance opening and two support tops located on both sides of the arc-shaped avoidance opening in the circumferential direction, and the reel support 180 may include two support feet that are detachably connected to the two support tops. In the state where the two support tops and the two support feet are detached, the reel support 180 can rotate around the barrel shaft 161 through the bearing (for example, rotate 180°), so that when the lifting reel device 160 is axially removed from the deceleration rotation output end, the reel support 180 and the lifting reel device 160 can pass through the arc-shaped avoidance opening in sequence in the axial direction, thereby achieving the above-mentioned effect of removing the lifting reel device 160 as a whole from the deceleration rotation output end in the axial direction.

[0063] In some embodiments, the lifting mechanism may further include:

[0064] A rotating platform 120, wherein a platform support 121 is disposed on the top surface of the rotating platform 120, and the platform support 121 is provided with a platform support through hole;

[0065] The auxiliary support assembly includes a reel support 180 and a bearing disposed on the reel support 180. One end of the drum shaft 161 is connected to the deceleration rotation output end and the other end is connected to the bearing. The reel support 180 is provided with a reel support through hole aligned with the platform support through hole.

[0066] The third connecting component 170 includes a pin and a tightening sleeve. The tightening sleeve is sleeved in the through hole of the platform support and the through hole of the reel support. The pin passes through the tightening sleeve and fixes the platform support 121 and the reel support 180.

[0067] By adopting the third connecting component 170 in this embodiment, compared with directly connecting and fixing the platform support 121 and the reel support 180 through bolts, the matching arrangement of the pin shaft and the expansion sleeve can avoid the problem of failure of the entire mechanism due to loosening or breaking of the bolts, thereby effectively improving the reliability of the entire mechanism.

[0068] In some embodiments, two platform supports 121 are provided, the two platform supports 121 are spaced apart along the axial direction of the barrel shaft 161 , and the reel support 180 is disposed between the two platform supports 121 .

[0069] By arranging the reel support 180 between the two platform supports 121, the stability of the reel support 180 can be further improved, the reel support 180 can be prevented from shifting or loosening when the lifting mechanism vibrates, and the structural stress of the reel support 180 can be optimized. In addition, when the platform support 121 is fixed to the top surface of the rotating platform 120 by welding, the optimized structure of this embodiment can also prevent the weld between the platform support 121 and the top surface of the rotating platform 120 from cracking.

[0070] In some embodiments, the splines on the cylindrical shaft 161, the connecting sleeve 163 and the deceleration rotation output end are all involute splines. Of course, the present application does not limit the specific form of the splines on the cylindrical shaft 161, the connecting sleeve 163 and the deceleration rotation output end, and other forms of splines can also be used.

[0071] In some embodiments, reference Figure 6The rotary reduction gear 110 and the rotary platform 120 can be connected by a pin shaft. In this way, when the rotary reduction gear 110 needs to be replaced, it is only necessary to remove the pin shaft between the rotary reduction gear 110 and the rotary platform 120, and disconnect the connection between the rotary reduction gear 110 and the rotary power device 140 (if a coupling 130 is provided, the connection between the rotary reduction gear 110 and the coupling 130 is disconnected). Then, the rotary reduction gear 110 can be disassembled axially as a whole without using lifting equipment to lift and disassemble the rotary reduction gear 110. Therefore, it is convenient for operators to perform the disassembly operation of the rotary reduction gear 110 on the rotary platform 120 with a compact space, which greatly reduces the difficulty of disassembly and improves the efficiency of disassembly.

[0072] The second exemplary embodiment of the present application further provides a working machine, which includes the above-mentioned lifting mechanism. For example, the working machine of the present application can be a working machine in the fields of metallurgy, mining, construction, etc. (such as a mechanical front shovel excavator, lifting equipment, etc.), and the present application does not limit this.

[0073] In the description of the present application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present application, "plurality" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0074] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0075] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. 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 may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0076] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A lifting mechanism, characterized in that: include: A rotary power device (140); A rotation reduction device (110), driven by the rotation power device (140) and provided with a reduction rotation output end; and The lifting drum device (160) comprises a drum shell (165), a drum shaft (161) coaxially arranged in the drum shell (165), and a connecting sleeve (163) sleeved between the drum shaft (161) and the drum shell (165); the connecting sleeve (163) and the drum shell (165) are fixed to each other, the connecting sleeve (163) and the drum shaft (161) form a spline fit, and one end of the drum shaft (161) forms a detachable spline fit with the deceleration rotation output end.

2. The lifting mechanism according to claim 1, characterized in that: The lifting drum device (160) also includes a first annular plate and a first connecting component. The first annular plate is sleeved and fixed in the drum shell (165) and is provided with an annular plate through hole. The outer peripheral wall of the connecting sleeve (163) is provided with an annular protrusion. The annular protrusion is provided with a protrusion through hole aligned with the annular plate through hole. The first connecting component includes a shear sleeve (166) and a first bolt assembly. The shear sleeve (166) is sleeved in the annular plate through hole and the protrusion through hole. The first bolt assembly penetrates the shear sleeve (166) and fixes the first annular plate and the annular protrusion.

3. The lifting mechanism according to claim 1, characterized in that: The lifting drum device (160) also includes a retaining ring (164) and a second connecting component, the outer peripheral wall of the drum shaft (161) is provided with an annular groove portion, the retaining ring (164) is sleeved on the annular groove portion and is provided with a retaining ring through hole, one end of the connecting sleeve (163) is in contact with the retaining ring (164) and is provided with an end face through hole aligned with the retaining ring through hole, and the second connecting component connects the retaining ring through hole and the end face through hole.

4. The lifting mechanism according to claim 1, characterized in that: The spline on the cylindrical shaft (161) that forms a spline fit with the connecting sleeve (163) is a first spline, and the spline on the cylindrical shaft (161) that forms a spline fit with the deceleration rotation output end is a second spline. The first spline and the second spline are continuously processed and formed.

5. The lifting mechanism according to claim 1, characterized in that: The lifting mechanism also includes: A rotating platform (120), wherein a platform support (121) is provided on the top surface of the rotating platform (120); An auxiliary support assembly comprises a reel support (180) detachably connected to the platform support (121) and a bearing arranged on the reel support (180), one end of the drum shaft (161) being connected to the deceleration rotation output end and the other end being connected to the bearing; Wherein, when the reel support (180) and the platform support (121) are disassembled from each other, the reel support (180) can rotate around the barrel shaft (161) through the bearing to avoid each other in the axial direction with the platform support (121), so that the lifting reel device (160) can be disassembled from the deceleration rotation output end in the axial direction.

6. The lifting mechanism according to claim 5, characterized in that: The top of the platform support (121) is provided with an arc-shaped avoidance opening and two support tops respectively located on both sides of the arc-shaped avoidance opening in the circumferential direction, and the reel support (180) comprises two support feet respectively connected to the two support tops in a detachable manner; In which, when the two support tops and the two support feet are disassembled, the drum support (180) can rotate around the barrel shaft (161) through the bearing, so that when the lifting drum device (160) is axially removed from the deceleration rotation output end, the drum support (180) and the lifting drum device (160) can pass through the arc-shaped avoidance opening in sequence along the axial direction.

7. The lifting mechanism according to claim 1, characterized in that: The lifting mechanism also includes: A rotating platform (120), wherein a platform support (121) is provided on the top surface of the rotating platform (120), and the platform support (121) is provided with a platform support through hole; The auxiliary support assembly comprises a reel support (180) and a bearing arranged on the reel support (180), one end of the drum shaft (161) is connected to the deceleration rotation output end and the other end passes through the bearing, and the reel support (180) is provided with a reel support through hole aligned with the platform support through hole; The third connecting component (170) comprises a pin shaft and a tightening sleeve, wherein the tightening sleeve is sleeved in the through hole of the platform support and the through hole of the reel support, and the pin shaft penetrates the tightening sleeve and fixes the platform support (121) and the reel support (180).

8. The lifting mechanism according to claim 7, characterized in that: Two platform supports (121) are provided, and the two platform supports (121) are spaced apart along the axial direction of the barrel shaft (161), and the reel support (180) is arranged between the two platform supports (121).

9. The lifting mechanism according to any one of claims 1 to 8, characterized in that: The splines on the cylindrical shaft (161), the connecting sleeve (163) and the decelerating rotation output end are all involute splines.

10. An operating machine, characterized in that: Comprising a lifting mechanism according to any one of claims 1 to 9.

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