Heavy-load carrying platform

Abstract

The invention relates to the field of carrying platforms, and particularly discloses a heavy-load carrying platform which comprises a base, a supporting platform, a jacking mechanism, a lifting mechanism, a heavy-load rotating platform and a rotating driving mechanism, and the supporting platform is arranged on the base in a lifting mode; the jacking mechanism is used for driving the supporting platform to ascend and descend; the jacking mechanism comprises a sliding part, a lead screw driving assembly and a cam transmission assembly, the sliding part is arranged on the lower end face of the supporting platform in a sliding mode, the lead screw driving assembly is used for driving the sliding part to slide in the horizontal direction, and the cam transmission assembly is used for converting movement of the sliding part in the horizontal direction into movement of the supporting platform in the vertical direction; the lifting mechanism is used for supporting the supporting platform in the lifting process of the supporting platform; the heavy-load rotating platform is used for bearing a workpiece and is rotationally arranged on the supporting platform; the rotation driving mechanism is used for driving the heavy-load rotating platform to rotate. Compared with a jacking device driven by air pressure or hydraulic pressure, the jacking device is better in stability and more suitable for bearing heavy workpieces.

Description

Technical Field

[0001] The present application relates to the field of loading platforms, and in particular to a heavy-load loading platform. Background Art

[0002] In the field of in-situ workpiece processing and repair, a loading platform is often used to support the workpiece, achieving multi-dimensional precision positioning and dynamic and stable support for the workpiece. Existing technologies generally use pneumatic or hydraulic lifting devices as the lifting and lowering drive devices for the loading platform.

[0003] When the workpiece carried by the loading platform is heavy, the dynamic stability of the pneumatic or hydraulically driven lifting device is insufficient, making it difficult for the loading platform to meet the process requirements. The reasons include: (1) The pneumatic drive system is easily affected by ambient temperature fluctuations and gas compressibility, causing low-amplitude vibration of the loading platform, which makes it difficult to meet the submicron stability requirements of high-energy beam processing such as laser cladding; (2) Although the hydraulic system has a strong load-bearing capacity, there is a risk of oil leakage, and the pipeline pressure fluctuates, which may cause displacement drift under continuous processing conditions. Summary of the Invention

[0004] In order to improve the problem of insufficient dynamic stability of existing loading platforms when used to carry heavy workpieces, the present application provides a heavy-load loading platform.

[0005] The heavy-load loading platform provided in this application adopts the following technical solutions: A heavy-load loading platform, comprising: base; A supporting platform is lifted and arranged on the base; A lifting mechanism is used to drive the support platform to rise and fall; the lifting mechanism includes a sliding member, a screw drive assembly and a cam transmission assembly, the sliding member is slidably arranged on the lower end surface of the support platform, the screw drive assembly is used to drive the sliding member to slide in the horizontal direction, and the cam transmission assembly is used to convert the horizontal movement of the sliding member into the vertical movement of the support platform; A lifting mechanism, used for supporting the support platform during the process of raising and lowering the support platform; A heavy-load rotating platform is used to carry the workpiece, and the heavy-load rotating platform is rotatably arranged on the supporting platform; The rotary drive mechanism is used to drive the heavy-load rotary platform to rotate.

[0006] This application uses a screw drive assembly and a cam transmission assembly to realize the jacking drive of the support platform. Compared with conventional pneumatic or hydraulic driven jacking devices, this application has better stability and is more suitable for carrying heavy workpieces; during the lifting and lowering of the support platform, the lifting mechanism provides stable support for the support platform; after the support platform is lifted into place, the heavy-loaded rotating platform is driven to rotate by the rotary drive mechanism, which can realize workpiece positioning and multi-station processing.

[0007] Furthermore, the cam transmission assembly includes two oppositely arranged guide plates fixedly arranged on the base, and guide grooves are respectively provided on opposite sides of the two guide plates, and the guide grooves are provided with an inclined section; the sliding member includes a horizontally arranged roller shaft and rollers rotatably arranged at both ends of the roller shaft, and each of the rollers is slidably arranged in the corresponding guide groove.

[0008] Furthermore, the screw drive assembly includes a screw rotatably arranged on the lower end surface of the support platform and a first driving member for driving the screw to rotate, the screw is threadedly connected to a threaded slider, and the threaded slider is fixed to the roller shaft.

[0009] Furthermore, a slide rail is fixedly provided on the lower end surface of the support platform, the slide rail is parallel to the lead screw, the threaded slider is fixedly connected to a connecting seat, a sliding part is provided on one side of the connecting seat, and the sliding part is slidably provided on the slide rail.

[0010] Furthermore, a plurality of guide columns are fixedly connected to the lower end surface of the support platform, and a guide cylinder for the guide columns to pass through is fixedly provided on the base.

[0011] The first driving member drives the lead screw to rotate, so that the threaded slider moves along the lead screw, and the roller shaft and the threaded slider move synchronously, so that the roller slides along the corresponding guide groove. The inclined section of the guide groove can convert the horizontal movement of the threaded slider into the vertical movement of the guide plate, thereby adjusting the distance between the support platform and the base, and realizing the lifting and lowering of the support platform on the base; compared with pneumatic or hydraulic drive, the lead screw drive method of this application has better stability.

[0012] Furthermore, the lifting mechanism includes a plurality of support arms hinged on the base, and the plurality of support arms are arranged at intervals along the circumference of the base; one end of the support arm is supported on the lower end surface of the support platform, and the other end of the support arm is hinged to an adjustment arm, and the end of the adjustment arm away from the support arm is hinged to the base.

[0013] Furthermore, one end of the support arm away from the adjustment arm is rotatably connected to a roller, and a plurality of radial guide rails are fixedly provided on the lower end surface of the support platform along its own radial direction, and the rollers are slidably provided in the corresponding radial guide rails.

[0014] When the support platform is raised or lowered, the distance between the support platform and the base changes. During this process, the support arm and the adjustment arm undergo adaptive angle changes. At the same time, the roller slides along the radial guide rail. Multiple support arms provide support for the support platform to ensure the stability of the support platform during the lifting process.

[0015] Furthermore, a first fixing seat is fixedly provided on the support platform, and the rotation drive mechanism includes a drive shaft rotatably provided on the first fixing seat, an angle bracket is slidably provided on the drive shaft along its length direction, and a first bevel gear and a second bevel gear that are meshed with each other are rotatably connected to the angle bracket, and the first bevel gear is connected to the drive shaft via a spline; The rotary drive mechanism also includes a planetary gear transmission assembly, a second drive member and a steering buffer assembly, the input end of the planetary gear transmission assembly is connected to the second bevel gear, and the output end of the planetary gear transmission assembly is connected to the heavy-loaded rotating platform; the second drive member is used to drive the drive shaft to rotate; the steering buffer assembly is used to offset the eccentricity during the rotation of the heavy-loaded rotating platform.

[0016] Furthermore, the steering buffer assembly includes two buffer springs sleeved on the drive shaft, and the two buffer springs are respectively located on both sides of the first bevel gear.

[0017] Furthermore, a second fixing seat is fixedly provided on the support platform, a horizontal guide rail is fixedly provided on the second fixing seat, a sliding block is fixedly connected to the angle bracket, and the sliding block is slidably provided on the horizontal guide rail.

[0018] The first bevel gear and the drive shaft are splined to enable the first bevel gear to rotate synchronously with the drive shaft and to slide along the drive shaft; when the second driving member drives the drive shaft to rotate, the heavy-load rotating platform can rotate under the transmission of the first bevel gear, the second bevel gear and the planetary gear transmission assembly.

[0019] If assembly deviation or uneven load causes eccentric rotation of the heavy-loaded rotating platform, the angle bracket can slide along the drive shaft together with the first bevel gear and the second bevel gear. During this process, the sliding block slides along the horizontal guide rail, and the two buffer springs provide elastic buffering for the sliding of the angle bracket, thereby offsetting the eccentricity of the heavy-loaded rotating platform and improving the stability of the rotation of the heavy-loaded rotating platform.

[0020] In summary, this application includes at least one of the following beneficial technical effects: 1. This application uses a screw drive assembly and a cam transmission assembly to convert the horizontal movement of the sliding member into the vertical movement of the support platform, thereby realizing the lifting drive of the support platform. Compared with conventional pneumatic or hydraulic lifting devices, this application has better stability and is more suitable for carrying heavy workpieces. 2. The heavy-load rotary platform is driven by a rotary drive mechanism to rotate, enabling workpiece positioning and multi-station processing; 3. The steering buffer assembly helps to offset the eccentricity of the heavy-loaded rotating platform caused by assembly deviation or uneven load. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application; Figure 2 This is a schematic diagram of the structure of the embodiment of the present application, mainly used to illustrate the base, support platform, jacking mechanism and lifting mechanism, wherein (a) is a front view and (b) is a cross-sectional view; Figure 3 It is a structural schematic diagram mainly used to illustrate the lifting mechanism in the embodiment of the present application, wherein (a) is a front view and (b) is a side view; Figure 4 It is a schematic diagram of the local structure of the embodiment of the present application mainly used to illustrate the sliding member and the screw drive assembly; Figure 5 This is a structural diagram of the lifting mechanism in the embodiment of the present application; Figure 6 is a structural diagram of the rotary drive mechanism in an embodiment of the present application; Figure 7 1 is a schematic diagram mainly used to illustrate the structure of the steering buffer assembly in the embodiment of the present application, wherein (a) is a side view and (b) is a cross-sectional view; Figure 8 It is a structural schematic diagram of the planetary gear transmission assembly in an embodiment of the present application.

[0022] Figure numerals: 1. base; 11. pedestal; 12. fixing column; 13. support seat; 14. support plate; 15. connecting column; 16. lifting column; 2. support platform; 3. lifting mechanism; 31. sliding member; 311. connecting seat; 312. shaft frame; 313. roller shaft; 314. roller; 315. sliding part; 316. slide rail; 32. screw drive assembly; 321. screw; 322. threaded slider; 323. first drive member; 33. cam transmission assembly; 331. guide plate; 332. guide groove; 333. inclined section; 34. guide column; 35. guide cylinder; 36. platform connecting plate; 4. lifting mechanism; 41. support arm; 42. adjustment Arm; 43. Roller; 44. Radial guide rail; 5. Heavy-load rotating platform; 51. Support wheel; 52. Annular guide rail; 6. Rotary drive mechanism; 61. First fixed seat; 62. Drive shaft; 621. First limiting portion; 622. Second limiting portion; 63. Angle bracket; 64. First bevel gear; 65. Second bevel gear; 66. Second driving member; 67. Planetary gear transmission assembly; 671. Internal ring gear; 672. Planet carrier; 673. Planetary gear; 674. Sun gear; 675. Planetary gear top cover; 68. Steering buffer assembly; 681. First buffer spring; 682. Second buffer spring; 683. Second fixed seat; 684. Horizontal guide rail; 685. Sliding block. DETAILED DESCRIPTION

[0023] The following is combined with Figure 1-8 This application is described in further detail.

[0024] The embodiment of the present application discloses a heavy-load loading platform. Figure 1 The heavy-load loading platform includes a base 1, a support platform 2, a lifting mechanism 3, a support mechanism 4, a heavy-load rotating platform 5, and a rotary drive mechanism 6. The support platform 2 is mounted on the base 1 for lifting and lowering. The lifting mechanism 3 is used to drive the support platform 2 up and down, and the support mechanism 4 is used to support the support platform 2 during the lifting and lowering process. The heavy-load rotating platform 5 is used to carry workpieces and is rotatably mounted on the support platform 2. The rotary drive mechanism 6 is used to drive the heavy-load rotating platform 5 to rotate. Both the support platform 2 and the heavy-load rotating platform 5 are disc-shaped.

[0025] When in use, the workpiece is placed on the heavy-loaded rotating platform 5, and the supporting platform 2 is first driven to rise and fall by the jacking mechanism 3. During this process, the lifting mechanism 4 provides support for the supporting platform 2. After the supporting platform 2 is raised and lowered into place, the heavy-loaded rotating platform 5 is driven to rotate by the rotating drive mechanism 6, thereby realizing workpiece positioning and multi-station processing.

[0026] Reference Figure 2The base 1 includes a base 11 fixed to the ground, the base 11 is connected to a support base 13 through a plurality of vertical fixing columns 12, and a horizontal support plate 14 is fixed on the top of the support base 13. The bottom of the support plate 14 is connected to a lifting column 16 through a connecting column 15.

[0027] Reference Figure 2 The lifting mechanism 3 includes a sliding member 31, a screw drive assembly 32, and a cam transmission assembly 33. The sliding member 31 is slidably mounted on the lower end surface of the support platform 2. The screw drive assembly 32 is used to drive the sliding member 31 to slide horizontally, and the cam transmission assembly 33 is used to convert the horizontal movement of the sliding member 31 into vertical movement of the support platform 2.

[0028] Specifically, refer to Figure 2 and Figure 3 The cam transmission assembly 33 includes two guide plates 331 fixedly arranged on the support plate 14 of the base 1. The two guide plates 331 are vertical and arranged opposite to each other. A guide groove 332 is respectively opened on the opposite side of the two guide plates 331, and the guide groove 332 is provided with an inclined section 333.

[0029] Reference Figure 2 The lower end surface of the supporting platform 2 is fixedly provided with a platform connecting plate 36, and the sliding member 31 is slidably provided on the lower end surface of the platform connecting plate 36. Figure 3 and Figure 4 The sliding member 31 includes a horizontally disposed roller shaft 313 and rollers 314 rotatably mounted at each end of the roller shaft 313. Each roller 314 slides within a corresponding guide slot 332. The screw drive assembly 32 includes a screw 321 rotatably mounted on the lower end surface of the platform connecting plate 36 and a first drive member 323, which is a motor, for driving the screw 321. The screw 321 is threadedly connected to a threaded slider 322. The bottom of the threaded slider 322 is fixedly connected to the connecting seat 311 and the shaft bracket 312 in sequence. The roller shaft 313 is rotatably mounted on the shaft bracket 312.

[0030] Further, refer to Figure 3 (a) and Figure 4 A slide rail 316 is fixedly provided on the lower end surface of the platform connecting plate 36 , and the slide rail 316 is parallel to the lead screw 321 . A sliding portion 315 is provided on one side of the connecting seat 311 , and the sliding portion 315 is slidably provided on the slide rail 316 .

[0031] The first drive member 323 drives the lead screw 321 to rotate, causing the threaded slider 322 to move along the lead screw 321. The roller shaft 313 moves synchronously with the threaded slider 322, causing the roller 314 to slide along the corresponding guide groove 332. The inclined section 333 of the guide groove 332 can convert the horizontal movement of the threaded slider 322 into the vertical movement of the guide plate 331, thereby adjusting the distance between the support platform 2 and the base 1 and achieving the raising and lowering of the support platform 2 on the base 1. Compared with pneumatic or hydraulic drives, the lead screw drive method of the present application has better stability and is more suitable for carrying heavy workpieces.

[0032] In order to guide the lifting and lowering of the supporting platform 2 in the vertical direction, refer to Figure 3 The lower end surface of the platform connecting plate 36 is fixed with a plurality of vertical guide columns 34, and the support plate 14 of the base 1 is fixed with a guide cylinder 35 for the guide column 34 to pass through. The guide cylinder 35 can be replaced by a linear bearing.

[0033] In order to provide stable support for the support platform 2 during the lifting process of the support platform 2, refer to Figure 2 and Figure 5 The lifting mechanism 4 includes a plurality of support arms 41 hinged to the base 1, and the plurality of support arms 41 are arranged at intervals along the circumference of the base 1. The upper ends of the support arms 41 are supported on the lower end surface of the support platform 2, and the lower ends of the support arms 41 are hinged to adjustment arms 42, and the lower ends of the adjustment arms 42 are hinged to the base 1. Specifically, the middle portions of the support arms 41 are hinged to the support base 13, and the lower ends of the adjustment arms 42 are hinged to the side walls of the lifting columns 16.

[0034] Further, refer to Figure 2 and Figure 5 The upper end of the support arm 41 is rotatably connected to a roller 43 , and the lower end surface of the support platform 2 is fixedly provided with a plurality of radial guide rails 44 along its own radial direction, and the rollers 43 are slidably provided in the corresponding radial guide rails 44 .

[0035] When the support platform 2 is raised or lowered, the distance between the support platform 2 and the base 1 changes. During this process, the support arms 41 and the adjustment arms 42 undergo adaptive angle changes, while the rollers 43 slide along the corresponding radial guide rails 44. The multiple support arms 41 provide support for the support platform 2, ensuring the stability of the support platform 2 during the raising and lowering process. For example, when the support platform 2 is lowered, the distance between the support platform 2 and the base 1 decreases, and the multiple support arms 41 simultaneously open outward to provide support for the support platform 2. The rollers 43 slide outward along the corresponding radial guide rails 44. At the same time, the support arms 41 and the adjustment arms 42 cooperate to apply an upward force to the lifting column 16. This thrust is transmitted to the support plate 14 through the connecting column 15, providing stable support for the cam transmission assembly 33.

[0036] Reference Figure 6 and Figure 7A first fixed seat 61 is fixedly mounted on the support platform 2. The rotary drive mechanism 6 includes a horizontally mounted drive shaft 62 rotatably mounted on the first fixed seat 61. A bracket 63 is slidably mounted along the length of the drive shaft 62. The bracket 63 comprises two perpendicular plates, each of which is rotatably connected to a first bevel gear 64 and a second bevel gear 65 via bearings. The first bevel gear 64 and the second bevel gear 65 mesh with each other. The first bevel gear 64 is coaxially connected to the drive shaft 62 via a spline, allowing the first bevel gear 64 to rotate synchronously with the drive shaft 62 and to slide axially along the drive shaft 62 along with the bracket 63.

[0037] The rotary drive mechanism 6 also includes a planetary gear transmission assembly 67, a second drive member 66, and a steering buffer assembly 68. The input end of the planetary gear transmission assembly 67 is connected to the second bevel gear 65, and the output end of the planetary gear transmission assembly 67 is connected to the heavy-load rotating platform 5. The second drive member 66 is a motor that drives the drive shaft 62 to rotate. The steering buffer assembly 68 is used to offset the eccentricity of the heavy-load rotating platform 5 during rotation.

[0038] Specifically, refer to Figure 8 The planetary gear transmission assembly 67 includes a rotatable inner ring gear 671 and a fixed planet carrier 672. Three planetary gears 673 are rotatably mounted on the planet carrier 672. The outer sides of the three planetary gears 673 mesh with the inner ring gear 671, and the inner sides of the three planetary gears 673 mesh with a sun gear 674. The sun gear 674 is coaxially fixed to the second bevel gear 65. The inner ring gear 671 is fixedly connected to a planetary gear cover 675, which is coaxially fixed to the heavy-load rotating platform 5.

[0039] The driving shaft 62 is driven to rotate by the second driving member 66 , and the heavy-load rotating platform 5 is driven by the first bevel gear 64 , the second bevel gear 65 and the planetary gear transmission assembly 67 to slowly rotate, thereby achieving workpiece positioning and multi-station processing.

[0040] In order to improve the stability of the heavy-load rotating platform 5, refer to Figure 1 The support platform 2 is rotatably provided with a plurality of support wheels 51. The lower end surface of the heavy-load rotating platform 5 is fixedly provided with an annular guide rail 52. The annular guide rail 52 is slidably adapted to the plurality of support wheels 51. During the rotation of the heavy-load rotating platform 5, the support wheels 51 roll along the annular guide rail 52, supporting the heavy-load rotating platform 5 while limiting the rotation trajectory of the heavy-load rotating platform 5.

[0041] Reference Figure 7The steering buffer assembly 68 includes two buffer springs sleeved on the drive shaft 62. The two buffer springs are respectively located on both sides of the first bevel gear 64. In the assembled state, the two buffer springs are in a compressed state and have not reached the compression limit.

[0042] Specifically, refer to Figure 7 The two ends of the driving shaft 62 are respectively provided with a first limiting portion 621 and a second limiting portion 622, wherein the first limiting portion 621 abuts against one side of the first fixed seat 61; the buffer spring includes a first buffer spring 681 and a second buffer spring 682; wherein the two ends of the first buffer spring 681 abut against the inner side of the first bevel gear 64 and the first limiting portion 621, respectively, and the two ends of the second buffer spring 682 abut against the outer side of the angle bracket 63 and the second limiting portion 622, respectively.

[0043] Further, refer to Figure 7 A second fixed seat 683 is fixedly provided on the support platform 2 , a horizontal guide rail 684 is fixedly provided on the second fixed seat 683 , a sliding block 685 is fixedly connected to one side of the angle bracket 63 , and the sliding block 685 is slidably provided on the horizontal guide rail 684 .

[0044] If the heavy-loaded rotating platform 5 rotates eccentrically due to assembly deviation or uneven load-bearing, the angle bracket 63 can slide along the drive shaft 62 together with the first bevel gear 64 and the second bevel gear 65. During this process, the sliding block 685 slides along the horizontal guide rail 684, and the first buffer spring 681 and the second buffer spring 682 provide elastic buffering for the sliding of the angle bracket 63 and the first bevel gear 64, thereby offsetting the eccentricity of the heavy-loaded rotating platform 5 and improving the rotation stability of the heavy-loaded rotating platform 5.

[0045] The implementation principle of a heavy-load loading platform in an embodiment of the present application is as follows: a workpiece is placed on a heavy-load rotating platform 5, and the lead screw 321 is driven to rotate by the first driving member 323, so that the threaded slider 322 moves along the lead screw 321, and the roller 314 slides along the corresponding guide groove 332. The inclined section 333 of the guide groove 332 can convert the horizontal movement of the threaded slider 322 into the vertical movement of the guide plate 331, thereby adjusting the distance between the support platform 2 and the base 1, and realizing the lifting and lowering of the support platform 2 on the base 1; in this process, the support arm 41 undergoes adaptive angle changes and provides support for the support platform 2; after the support platform 2 is lifted and lowered into place, the heavy-load rotating platform 5 is driven to rotate by the rotary drive mechanism 6, thereby realizing workpiece positioning and multi-station processing; compared with pneumatic or hydraulic drive, the lead screw drive method of the present application has better stability and is more suitable for carrying heavy workpieces.

[0046] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A heavy-load loading platform, characterized by: include: base; A supporting platform is lifted and arranged on the base; A lifting mechanism, used for driving the support platform to rise and fall; The lifting mechanism includes a sliding member, a screw drive assembly and a cam transmission assembly, wherein the sliding member is slidably arranged on the lower end surface of the support platform, the screw drive assembly is used to drive the sliding member to slide in the horizontal direction, and the cam transmission assembly is used to convert the movement of the sliding member in the horizontal direction into the movement of the support platform in the vertical direction; A lifting mechanism, used for supporting the support platform during the process of raising and lowering the support platform; A heavy-load rotating platform is used to carry the workpiece, and the heavy-load rotating platform is rotatably arranged on the supporting platform; The rotary drive mechanism is used to drive the heavy-load rotary platform to rotate.

2. A heavy-load loading platform according to claim 1, characterized in that: The cam transmission assembly includes two oppositely arranged guide plates fixedly arranged on the base, and guide grooves are respectively opened on the opposite sides of the two guide plates, and the guide grooves are provided with an inclined section; the sliding member includes a horizontally arranged roller shaft and rollers rotatably arranged at both ends of the roller shaft, and each of the rollers is slidably arranged in the corresponding guide groove.

3. A heavy-load loading platform according to claim 2, characterized in that: The screw drive assembly includes a screw rotatably arranged on the lower end surface of the support platform and a first driving member for driving the screw to rotate. The screw is threadedly connected to a threaded slider, and the threaded slider is fixed to the roller shaft.

4. A heavy-load loading platform according to claim 3, characterized in that: A slide rail is fixedly provided on the lower end surface of the support platform, and the slide rail is parallel to the lead screw. The threaded slider is fixedly connected to a connecting seat, and a sliding part is provided on one side of the connecting seat, and the sliding part is slidably provided on the slide rail.

5. The heavy-load loading platform according to claim 4, characterized in that: A plurality of guide columns are fixedly connected to the lower end surface of the support platform, and a guide cylinder for the guide columns to pass through is fixedly provided on the base.

6. The heavy-load loading platform according to claim 1, characterized in that: The lifting mechanism includes a plurality of support arms hinged on the base, and the plurality of support arms are arranged at intervals along the circumference of the base; one end of the support arm is supported on the lower end surface of the support platform, and the other end of the support arm is hinged to an adjustment arm, and the end of the adjustment arm away from the support arm is hinged to the base.

7. The heavy-load loading platform according to claim 6, characterized in that: One end of the support arm away from the adjustment arm is rotatably connected to a roller, and a lower end surface of the support platform is fixedly provided with a plurality of radial guide rails along its own radial direction, and the rollers are slidably provided in the corresponding radial guide rails.

8. The heavy-load loading platform according to claim 1, characterized in that: A first fixing seat is fixedly provided on the support platform, and the rotation drive mechanism includes a drive shaft rotatably provided on the first fixing seat, an angle bracket is slidably provided on the drive shaft along its length direction, and a first bevel gear and a second bevel gear that are meshed with each other are rotatably connected to the angle bracket, and the first bevel gear is connected to the drive shaft through a spline; The rotary drive mechanism further includes a planetary gear transmission assembly, a second driving member and a steering buffer assembly, wherein the input end of the planetary gear transmission assembly is connected to the second bevel gear, and the output end of the planetary gear transmission assembly is connected to the heavy-load rotating platform; The second driving member is used to drive the driving shaft to rotate; the steering buffer assembly is used to offset the eccentricity during the rotation of the heavy-load rotating platform.

9. The heavy-load loading platform according to claim 8, characterized in that: The steering buffer assembly includes two buffer springs sleeved on the drive shaft, and the two buffer springs are respectively located on both sides of the first bevel gear.

10. The heavy-load loading platform according to claim 9, characterized in that: A second fixing seat is fixedly provided on the support platform, a horizontal guide rail is fixedly provided on the second fixing seat, a sliding block is fixedly connected to the angle bracket, and the sliding block is slidably provided on the horizontal guide rail.

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