Lifting mechanism based on face gear transmission and working platform

Abstract

The utility model discloses a face gear transmission-based lifting mechanism and a working platform, the lifting mechanism comprises a bottom plate, and a support frame and a longitudinal lifting device are arranged on the bottom plate; the driving device and the face gear shaft system are installed on the supporting frame, and the driving device is in transmission connection with the longitudinal lifting device through the face gear shaft system; wherein the driving device is axially perpendicular to the face gear shaft system; the face gear shaft system is axially parallel to the longitudinal lifting device; and under the driving of the driving device, the face gear shaft system drives the longitudinal lifting device to move. The face gear shaft system is adopted, efficient transmission between the driving device and the longitudinal lifting device is achieved through the mechanism, and due to the fact that face gear transmission has the advantages of being large in transmission ratio, high in bearing capacity and compact in structure, the mechanism can still keep small size and weight when transmitting large torque. And secondly, the face gear shaft system is used for driving the longitudinal lifting device to ascend and descend, so that the moving speed of the upper platform is increased, and the manufacturing cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to lifting mechanism technical field, concretely relates to a kind of lifting mechanism and operation platform based on face gear transmission. BACKGROUND

[0002] Lifting platform is a kind of lifting mechanism with very wide application, and plays an important role in current automated production line, warehousing logistics, construction, aerospace and other industries. Lifting platform converts rotary motion of driving motor into vertical lifting motion of platform by transmission.

[0003] At present, mechanical transmission type lifting platform is mainly based on worm gear transmission and servo cylinder. In the transmission process, the friction between tooth surfaces is serious, and the worm gear generates a lot of heat, which reduces the service life of the worm gear and the transmission efficiency. In addition, the worm gear needs to be made of valuable wear-resistant materials, which increases the manufacturing cost. At the same time, due to the limitation of sliding speed during worm gear transmission, the rotational speed of the worm gear is difficult to improve, so the vertical moving speed of the lifting platform is low.

[0004] The servo cylinder lifting platform uses multiple servo cylinders to lift the lifting platform. Since the components of the servo cylinder are expensive, the overall manufacturing cost of the lifting platform is high. The control system of the servo cylinder is relatively complex, and a special controller and programming are needed to realize closed-loop control, which increases the complexity and cost of the system. Due to the characteristics of the servo system, the requirements for environmental conditions such as temperature and humidity are high, which can seriously affect the stability of the system during use. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a kind of lifting mechanism and operation platform based on face gear transmission. The first aspect is to solve the technical defects that the worm gear in the prior art has serious friction between tooth surfaces, generates a lot of heat, which reduces the service life of the worm gear and the transmission efficiency. In addition, the worm gear needs to be made of valuable wear-resistant materials, which increases the manufacturing cost. At the same time, due to the limitation of sliding speed during worm gear transmission, the rotational speed of the worm gear is difficult to improve, so the vertical moving speed of the lifting platform is low. The second aspect is to solve the technical defects that due to the characteristics of the servo system, the requirements for environmental conditions such as temperature and humidity are high, which can seriously affect the stability of the system during use.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0007] The first aspect provides a kind of lifting mechanism based on face gear transmission, which includes:

[0008] A bottom plate is provided with a support frame and a longitudinal lifting device;

[0009] A driving device and a face gear shaft system are installed on the support frame, and the driving device is in transmission connection with the longitudinal lifting device through the face gear shaft system;

[0010] The face gear shaft system is axially perpendicular to the driving device, and the face gear shaft system is axially parallel to the longitudinal lifting device;

[0011] Under the driving of the driving device, the face gear shaft system drives the longitudinal lifting device to displace.

[0012] Further, the support frame is arranged at the middle of the bottom plate, and the longitudinal lifting device is arranged around the bottom plate.

[0013] The longitudinal lifting device comprises a lifting assembly and a transmission assembly, the face gear shaft system is rotationally connected to the top of the support frame.

[0014] One end of the transmission assembly is connected with the face gear shaft system, and the other end is connected with the lifting assembly.

[0015] Further, the lifting assembly comprises a guide and a sliding piece, the guide is vertically installed on the top of the bottom plate, the sliding piece is slidingly connected to the outside of the guide, and the outside of the sliding piece is provided with a rack.

[0016] The transmission assembly comprises a transmission shaft, the transmission shaft is rotationally connected to the top of the support frame, one end of the transmission shaft close to the face gear shaft system is provided with a second cylindrical gear, and the second cylindrical gear is in meshing connection with the face gear shaft system.

[0017] One end of the transmission shaft close to the sliding piece is provided with a third cylindrical gear, and the third cylindrical gear is in meshing connection with the rack.

[0018] Further, the longitudinal lifting device further comprises an upper platform, and the upper platform is installed on the top of the lifting assembly.

[0019] Further, the sliding piece is a sliding column.

[0020] Further, two groups of base tables are symmetrically arranged on the outside of the support frame, and the number of base tables in each group is two.

[0021] The top of the base table is provided with a first bearing seat, and the transmission shaft is rotationally connected to the first bearing seat.

[0022] Further, the guide is a guide column.

[0023] Further, the face gear shaft system comprises a face gear, a bearing pressing cover, a bearing, and a second bearing seat, the second bearing seat is arranged on the top of the support frame, and the bearing is arranged in the second bearing seat.

[0024] The bearing gland is arranged on the second bearing seat, and the face gear is arranged in the bearing hole.

[0025] Further, the driving device is a driving motor.

[0026] In a second aspect, a work platform is provided, comprising a platform body, which is lifted by the face gear transmission based lifting mechanism as described above.

[0027] Compared with the prior art, the utility model has the following beneficial effects:

[0028] 1. By adopting the face gear shaft system, the mechanism realizes efficient transmission between the driving device and the longitudinal lifting device. Since the face gear transmission has the characteristics of large transmission ratio, strong carrying capacity and compact structure, the mechanism can still maintain small size and weight when transmitting large torque. Secondly, the face gear shaft system drives the longitudinal lifting device to lift, which not only improves the moving speed of the upper platform, but also reduces the manufacturing cost and improves the stability of lifting.

[0029] 2. The support frame is located in the middle of the bottom plate and provides a stable support point for the entire mechanism, which helps to disperse and withstand various forces and vibrations during operation of the mechanism, improving the stability and rigidity of the overall structure. The longitudinal lifting device is distributed around the bottom plate, which helps to balance the moment during lifting and reduce deformation and vibration caused by unbalanced load, further improving the stability of the mechanism.

[0030] 3. The guide piece is vertically installed on the top of the bottom plate and provides stable guidance for the sliding piece, ensuring the straightness and precision during lifting. At the same time, the sliding connection of the sliding piece and the guide piece, as well as the meshing connection of the third cylindrical gear and the rack, together form an accurate transmission chain, so that the lifting movement can be carried out according to the predetermined trajectory and speed, realizing accurate lifting control.

[0031] 4. The upper platform provides a stable bearing surface for the lifting mechanism, which can place or fix various objects or equipment that need to be lifted, greatly expanding the application range of the lifting mechanism and meeting the lifting needs in different fields and scenarios.

[0032] 5. The sliding connection between the sliding column and the guide piece is smoother, reducing friction and wear, improving the smoothness and precision of lifting, and helping to reduce energy loss and noise, improving the overall performance of the lifting mechanism.

[0033] 6. The two groups of symmetrically arranged abutments provide stable support for the transmission shaft, ensuring the stability and rigidity of the transmission shaft during operation, and can disperse and withstand the force and vibration generated by the transmission shaft, improving the stability and support force of the entire lifting device.

[0034] 7. As a guide component, the guide column has high rigidity and straightness in its columnar structure, which can provide precise guidance for the sliding component, ensuring that the sliding component moves along the predetermined trajectory during the lifting process, thereby improving the accuracy and stability of the lifting.

[0035] 8. The face gear meshes with the cylindrical gear on the drive shaft to form a stable transmission relationship, which can transmit greater torque and improve transmission efficiency; the bearing setting ensures the stability and accuracy of the face gear during operation and reduces energy loss and noise caused by vibration and deviation. Attached Figure Description

[0036] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0037] Figure 1 A perspective view of the lifting mechanism based on surface gear transmission provided by this utility model;

[0038] Figure 2 A schematic diagram of the installation of the longitudinal lifting device in the lifting mechanism based on surface gear transmission provided by this utility model;

[0039] Figure 3 A schematic diagram of the installation of the face gear shaft system in the lifting mechanism based on face gear transmission provided by this utility model;

[0040] Figure 4 A front view of the lifting mechanism based on surface gear transmission provided by this utility model;

[0041] Figure 5 Right view of the lifting mechanism based on surface gear transmission provided by this utility model;

[0042] The components are: 1. Upper platform; 2. Rack; 3. Guide component; 4. Base plate; 5. Support frame; 6. Drive shaft; 7. First bearing seat; 8. Drive device; 9. First cylindrical gear; 10. Face gear shaft system; 101. Face gear; 102. Bearing cover; 103. Bearing; 104. Second bearing seat; 11. Second cylindrical gear; 12. Third cylindrical gear. Detailed Implementation

[0043] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme of the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model below. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. The components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0044] Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but only represents selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the utility model.

[0045] It should be noted that: similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0046] In the description of the embodiments of the utility model, it should be noted that if the terms "upper", "lower", "horizontal", "inner" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship of the utility model product when it is usually placed, only for the convenience of describing the utility model and simplifying the description, and it does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" and the like are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0047] In addition, if the term "horizontal" appears, it does not mean that the component must be absolutely horizontal, but can be slightly inclined. For example, "horizontal" only means that its direction is relatively more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0048] The lifting platform is a lifting mechanism with very wide application, which plays an important role in current automatic production line, warehouse logistics, building construction, aerospace and other industries. The lifting platform converts the rotary motion of the driving motor into the vertical lifting motion of the platform through transmission.

[0049] At present, the mechanical transmission type lifting platform mainly adopts worm gear transmission and servo electric cylinder. In the transmission process, the worm gear has serious friction between the tooth surfaces and serious heating, which reduces the service life of the worm gear and the transmission efficiency. Moreover, the worm gear needs to be made of valuable wear-resistant materials, increasing the manufacturing cost. At the same time, the worm gear transmission has a limit on the sliding speed, so it is difficult to increase the rotation speed of the worm gear, and thus the vertical movement speed of the lifting platform is low.

[0050] The servo electric cylinder lifting platform adopts multiple servo electric cylinders to lift the lifting platform. Since the components of the servo electric cylinder are relatively expensive, the overall manufacturing cost of the lifting platform is high. The control system of the servo electric cylinder is relatively complex, and a special controller and programming are needed to realize closed-loop control, increasing the complexity and cost of the system. Due to the characteristics of the servo system, the requirements for environmental conditions such as temperature and humidity are relatively high, and these factors will seriously affect the stability of the system during use.

[0051] The inventor provides a lifting mechanism based on face gear transmission and a work platform to solve the above technical defects.

[0052] The utility model will be described in further detail below in combination with the drawings:

[0053] As shown in the drawings, Figures 1-5 The utility model embodiment provides a lifting mechanism based on face gear transmission, which comprises a bottom plate 4, a support frame 5 and a longitudinal lifting device arranged on the bottom plate 4; a driving device 8 and a face gear shaft system 10 are installed on the support frame 5, and the driving device 8 is in transmission connection with the longitudinal lifting device through the face gear shaft system 10; wherein the driving device 8 is axially perpendicular to the face gear shaft system 10, and the face gear shaft system 10 is axially parallel to the longitudinal lifting device; in application, the driving device 8 is preferably a motor. Under the driving of the driving device 8, the face gear shaft system 10 drives the longitudinal lifting device to displace, realizing the function of upward and downward lifting. During the whole lifting process, the face gear shaft system 10 is adopted, so that the efficient transmission between the driving device 8 and the longitudinal lifting device is realized. Since the face gear 101 transmission has the characteristics of large transmission ratio, strong carrying capacity and compact structure, the mechanism can still maintain a small volume and weight when transmitting a large torque. Secondly, the face gear shaft system 10 drives the longitudinal lifting device to lift, which not only improves the moving speed of the platform 1, but also reduces the manufacturing cost and improves the stability of lifting. Figure 2As shown, the support frame 5 is arranged in the middle of the base plate 4, and the longitudinal lifting device is arranged around the base plate 4; wherein the longitudinal lifting device comprises a lifting assembly and a transmission assembly, the face gear shaft system 10 is rotatably connected to the top of the support frame 5; one end of the transmission assembly is connected with the face gear shaft system 10, and the other end is connected with the lifting assembly. In this structure, the support frame 5 is located in the middle of the base plate 4, providing a stable support point for the entire mechanism, which helps to disperse and withstand various forces and vibrations during operation, improving the stability and rigidity of the overall structure. The longitudinal lifting device is distributed around the base plate 4, which helps to balance the moment during lifting, reduces deformation and vibration caused by unbalanced load, and further improves the stability of the mechanism. The face gear shaft system 10 is rotatably connected to the top of the support frame 5, so that the driving force of the driving device 8 can be more directly and efficiently transmitted to the lifting assembly, reducing energy loss and friction loss in the transmission process; at the same time, the transmission assembly as a key component connecting the face gear shaft system 10 and the lifting assembly optimizes the transmission path, ensures smooth force transmission, and improves transmission efficiency and response speed. Finally, the layout of the support frame 5 and the longitudinal lifting device makes full use of the space of the base plate 4, not only avoiding space waste, but also enabling the mechanism to function maximally in limited space, and facilitating maintenance and repair of the mechanism.

[0054] Further, the lifting assembly comprises a guide 3 and a sliding piece, the guide 3 is vertically installed on the top of the base plate 4, and the sliding piece is slidingly connected to the outside of the guide 3, and the outside of the sliding piece is provided with a rack 2; the transmission assembly comprises a transmission shaft 6, the transmission shaft 6 is rotatably connected to the top of the support frame 5, and the end of the transmission shaft 6 close to the face gear shaft system 10 is provided with a second cylindrical gear 11, the second cylindrical gear 11 is meshed and connected with the face gear shaft system 10;

[0055] The third cylindrical gear 12 is arranged at one end of the transmission shaft 6 close to the sliding piece and is in meshing connection with the rack 2. The guide piece 3 is vertically installed on the top of the bottom plate 4 and provides stable guidance for the sliding piece, ensuring the straightness and accuracy during the lifting process. At the same time, the sliding connection between the sliding piece and the guide piece 3 and the meshing connection between the third cylindrical gear 12 and the rack 2 together form an accurate transmission chain, enabling the lifting movement to follow the predetermined trajectory and speed, and realizing accurate lifting control. In addition, the meshing connection between the second cylindrical gear 11 and the face gear shaft system 10 can convert the rotary motion of the driving device 8 into the rotary motion of the transmission shaft 6, realizing effective power transmission; the meshing connection between the third cylindrical gear 12 and the rack 2 converts the rotary motion of the transmission shaft 6 into the linear lifting motion of the sliding piece, which is simple, direct and efficient. Furthermore, the transmission shaft 6 is rotatably connected to the top of the support frame 5 and is in meshing connection with the face gear shaft system 10 and the rack 2 through cylindrical gears, making the entire transmission system compact in structure and reasonable in layout; during use, the lifting stroke and lifting speed can be easily changed by adjusting the length of the rack 2 and the position of the transmission shaft 6, meeting the needs of different application scenarios. In addition, the lifting mechanism also has good expandability and can be easily integrated with other mechanical systems or control systems.

[0056] As shown in Figure 1 , the longitudinal lifting device also includes an upper platform 1 installed on the top of the lifting assembly. The upper platform 1 provides a stable bearing surface for the lifting mechanism, allowing various objects or equipment to be placed or fixed, greatly expanding the application range of the lifting mechanism and meeting the lifting needs in different fields and scenarios. At the same time, the close connection between the upper platform 1 and the lifting assembly ensures the stability and safety of the objects during lifting. Even in high altitude or complex environments, the objects can be lifted smoothly, avoiding safety hazards caused by shaking or deviation. Through the upper platform 1, the lifting operation of objects can be realized in industrial production, construction, logistics transportation and other fields by installing the upper platform 1, meeting the diversified needs.

[0057] As shown in Figure 2 , the sliding piece is a sliding column. The columnar structure of the sliding column has high rigidity and stability and can withstand large loads without deformation or damage, ensuring the stability and safety of the objects during lifting and improving the carrying capacity of the lifting mechanism. At the same time, the sliding connection between the sliding column and the guide piece 3 reduces friction and wear, improves the smoothness and accuracy of lifting, helps to reduce energy loss and noise, and improves the overall performance of the lifting mechanism.

[0058] As shown in Figures 2-5As shown, the outer side of the support frame 5 is symmetrically provided with two groups of bases, each group having two bases, and the top of each base is provided with a first bearing seat 7, and the transmission shaft 6 is rotatably connected to the first bearing seat 7. In this structure, the two symmetrically arranged bases provide stable support for the transmission shaft 6, ensuring the stability and rigidity of the transmission shaft 6 during operation, which helps to disperse and withstand the force and vibration generated by the transmission shaft 6, and improves the stability and support force of the entire longitudinal lifting device. Moreover, the transmission shaft 6 is rotatably connected to the first bearing seat 7, which reduces friction and wear during transmission, improves the smoothness and efficiency of transmission, and the symmetrically arranged bases and first bearing seats 7 make the installation and disassembly of the transmission shaft 6 more convenient. When the transmission shaft 6 needs to be repaired or replaced, the relevant parts can be easily disassembled, reducing the difficulty and cost of maintenance.

[0059] Further, the guide 3 is a guide column, which is usually made of high-strength and wear-resistant materials, has high carrying capacity and durability, and can withstand the pressure and friction generated by the sliding member during lifting without being easily deformed or damaged, thereby prolonging the service life of the longitudinal lifting device. In addition, the contact area between the guide column and the sliding member is relatively small, and the contact surface is usually precisely machined and lubricated, so the friction and wear between them are small, which can reduce energy loss and noise, and improve the smoothness and efficiency of lifting. In the application process, the guide column is an independent component, easy to install and adjust. During the installation of the lifting device, the position and number of guide columns can be adjusted according to actual needs to meet the guiding requirements in different scenarios. In addition, the disassembly and replacement of the guide column are also relatively convenient, reducing the difficulty and cost of maintenance.

[0060] As shown in the drawings, Figure 3As shown, the face gear shaft system 10 includes a face gear 101, a bearing gland 102, a bearing 103, and a second bearing seat 104, the second bearing seat 104 is arranged on the top of the support frame 5, the bearing 103 is arranged in the second bearing seat 104; the bearing gland 102 is arranged on the second bearing seat 104, and the face gear 101 is arranged in the hole of the bearing 103. The face gear 101 is engaged with the second cylindrical gear 11 on the transmission shaft 6, forming a stable transmission relationship; and because the engagement area of the face gear 101 is large, the contact stress is uniformly distributed, so that a larger torque can be transmitted, and the transmission efficiency is improved. In the above structure, the arrangement of the bearing 103 ensures the stability and precision of the face gear 101 during operation, reduces energy loss and noise caused by vibration and deviation. The second bearing seat 104 provides a firm support for the bearing 103 and the face gear 101, can bear larger radial and axial loads, and enhances the carrying capacity and durability of the entire face gear shaft system 10, and the use of the bearing gland 102 further fixes the bearing 103 to prevent it from loosening or shifting during operation, thereby ensuring the stability and reliability of the face gear shaft system 10. In terms of installation, the second bearing seat 104 is directly arranged on the top of the support frame 5, simplifying the installation process and reducing the installation difficulty, and the bearing 103 and the face gear 101 are easy to disassemble and replace as independent components, reducing maintenance cost and time. The entire lifting mechanism is controlled by the control system during operation. First, the driving device 8 is controlled to rotate, so that the driving device 8 drives the first cylindrical gear 9 to rotate; while the first cylindrical gear 9 rotates, the face gear 101 is driven to rotate, the face gear 101 drives the second cylindrical gear 11 inside the four transmission shafts 6 to rotate, and the rotation is transmitted to the third cylindrical gear two 12 outside the transmission shaft 6 through the transmission shaft 6, the third cylindrical gear two 12 rotates at the same time, and the gear rack 2 is engaged, the gear rack 2 is driven to move vertically up and down, the sliding column is driven to move, and finally the sliding column drives the upper platform 1 to move up and down, thereby achieving the purpose of lifting.

[0061] In a second aspect, the embodiment provides a work platform, which comprises a platform body and a lifting mechanism based on face gear transmission as described above.

[0062] Finally, it should be noted that: the above embodiments are only used to illustrate the technical scheme of the utility model and not to limit the protection scope thereof, although the utility model has been described in detail with reference to the above embodiments, those skilled in the art should understand that: after reading the utility model, those skilled in the art can still make various changes, modifications or equivalent replacements to the specific embodiments of the utility model, but these changes, modifications or equivalent replacements are all within the protection scope of the claims of the utility model to be approved.

Claims

1. A lifting mechanism based on face gear drive, characterized in that, The utility model relates to a platform body based on face gear drive's lifting mechanism, including: The bottom plate (4) is provided with support frame (5) and longitudinal lifting device on it; Driving device (8) and face gear shafting (10) are installed on the support frame (5), and the driving device (8) is drivenly connected with the longitudinal lifting device through the face gear shafting (10); Wherein, the driving device (8) and face gear shafting (10) are axially perpendicular, and the face gear shafting (10) and longitudinal lifting device are axially parallel; Under the driving of the driving device (8), the face gear shafting (10) drives the longitudinal lifting device to displace.

2. The face gear transmission based lifting mechanism of claim 1, wherein, The support frame (5) is arranged in the middle of the bottom plate (4), and the longitudinal lifting device is arranged around the bottom plate (4); Wherein, the longitudinal lifting device includes lifting assembly and transmission assembly, and the face gear shafting (10) is rotatably connected to the top of the support frame (5); One end of the transmission assembly is connected with the face gear shafting (10), and the other end is connected with the lifting assembly.

3. The face gear transmission based lifting mechanism of claim 2, wherein, The lifting assembly includes a guide (3) and a sliding member, the guide (3) is vertically installed on the top of the bottom plate (4), the sliding member is slidably connected to the outside of the guide (3), and the outside of the sliding member is provided with a rack (2); The transmission assembly includes a transmission shaft (6), the transmission shaft (6) is rotatably connected to the top of the support frame (5), one end of the transmission shaft (6) close to the face gear shafting (10) is provided with a second cylindrical gear (11), and the second cylindrical gear (11) is meshedly connected with the face gear shafting (10); One end of the transmission shaft (6) close to the sliding member is provided with a third cylindrical gear (12), and the third cylindrical gear (12) is meshedly connected with the rack (2).

4. The face gear transmission based lifting mechanism of claim 2, wherein, The longitudinal lifting device further includes an upper platform (1), and the upper platform (1) is installed on the top of the lifting assembly.

5. The face gear transmission based lifting mechanism of claim 3, wherein, The sliding member is a sliding column.

6. The face gear transmission based lifting mechanism of claim 3, wherein, The outside of the support frame (5) is symmetrically provided with two groups of base platforms, and the number of base platforms in each group is two; The top of the base platform is provided with a first bearing seat (7), and the transmission shaft (6) is rotatably connected in the first bearing seat (7).

7. The face gear transmission based lifting mechanism of claim 3, wherein, The guide (3) is a guide column.

8. The face gear transmission based lifting mechanism of claim 1, wherein, The face gear shafting (10) includes a face gear (101), a bearing gland (102), a bearing (103) and a second bearing seat (104), the second bearing seat (104) is arranged on the top of the support frame (5), and the bearing (103) is arranged in the second bearing seat (104); The bearing gland (102) is arranged on the second bearing seat (104), and the face gear (101) is arranged in the hole of the bearing (103).

9. The face gear transmission based lifting mechanism of claim 1, wherein, The driving device (8) is a driving motor.

10. A work platform comprising a platform body, characterised in that, The platform body adopts the lifting mechanism based on face gear drive in any one of claims 1-9 to carry out lifting operation.

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