Rotary platform with tool replacing function

Abstract

The utility model provides a revolving platform with a replacing tool, which is arranged on a base of a crane, a jacking mechanism is fixedly arranged on the base, the jacking mechanism comprises a base and a jack, the base is fixedly connected with the base, the jack is fixedly connected with the base, and the revolving platform comprises a conveying mechanism and a fixing plate, the conveying mechanism comprises a support, a supporting plate and a guide rail, the guide rail is detachably connected with the support, one end of the fixing plate is fixedly connected with the jack, the other end of the fixing plate is detachably connected with the support, the support is fixedly connected with the supporting plate, adjustment is convenient, the structure is simple, and safety and reliability are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of crane replacement tooling, in particular to a slewing platform with a replacement tooling. Background Art

[0002] The slewing platform is an important component in a crane to achieve the slewing function. The slewing platform is connected to the base through a slewing bearing. At present, cranes are used in many industries such as construction, manufacturing, and transportation. Cranes have become important material handling equipment. During the long-term use of the slewing bearing, for example, when the slewing bearing of a ship crane wears and needs to be replaced, after separating the slewing platform from the base using a jack, a stable platform is required to transport the old slewing bearing out and then transport the new slewing bearing back to the slewing platform.

[0003] For example, a patent document with a patent application number of 202110109607.3 and a publication date of April 30, 2021 discloses a tooling and method for replacing the slewing bearing of a bucket wheel stacker-reclaimer. It includes a jacking device and a lead screw. The bottom of the jacking device is fixed on the upper part of the portal frame, and the jacking device jacks up the slewing platform; the bottom of the lead screw is installed with a support, the support is fixed on the upper part of the portal frame, the lead screw passes through the slewing platform, and upper and lower adjusting nuts are respectively threadedly connected to the lead screw with the slewing platform as the boundary, so that the equipment does not need to be dismantled to achieve the purpose of replacing the slewing bearing, which not only saves replacement time and cost, but also is safe and reliable.

[0004] In the above document, after the jack jacks up the slewing platform to a predetermined position, a slewing bearing slideway is made at the place where the slewing bearing needs to be pulled out, and then the slewing bearing is pulled outwards. During the outward pulling process, the slideway only plays a conveying role for the slewing bearing, and neither the two sides of the slideway nor the side far from the slewing platform limits the lateral and longitudinal movement of the slewing support. The slewing bearing is likely to exceed the expected movement trajectory during the sliding out process, resulting in accidents. Summary of the Invention

[0005] The utility model provides a slewing platform with a replacement tooling, which is convenient to adjust, simple in structure and safe and reliable.

[0006] To achieve the above object, the technical solution of the utility model is: a slewing platform with a replacement tooling, which is arranged on the base of the crane. The base is fixedly provided with a jacking mechanism, and the jacking mechanism includes a base and a jack. The base is fixedly connected to the base, and the jack is fixedly connected to the base. It includes a conveying mechanism and a fixing plate. The conveying mechanism includes two brackets, more than two support plates and a guide rail. One end of the guide rail is arranged on the base, and the other end of the guide rail is detachably connected to the bracket. One end of the fixing plate is fixedly connected to the bottom of the jack, and the other end of the fixing plate is detachably connected to the bracket. Both ends of more than two support plates are respectively connected to the two brackets. Vertical plates are respectively arranged on both sides of the conveying mechanism on the two brackets, and a limiting plate is arranged between the two brackets.

[0007] With the above settings, when it is necessary to replace the slewing bearing, when the jacking mechanism jacks the slewing platform to a predetermined position and it is necessary to pull out the slewing bearing, the guide rail can be extended onto the base, and one end of the bracket can be connected to the fixing plate. After removing the slewing bearing and letting it fall onto the guide rail, a hoist chain can be arranged on the bracket to pull out the slewing bearing. The bracket and more than two support plates can provide a guiding function for the slewing bearing. When the slewing bearing moves on the bracket, the vertical plates limit both sides of the slewing platform, and the limiting plate limits the sliding position of the slewing bearing on the conveying mechanism, preventing the slewing bearing from sliding out of one end and both sides of the conveying mechanism, ensuring the reliability of sliding. When the slewing bearing reaches the predetermined position, fix the slewing bearing on the bracket, then detach the other end of the fixing plate from one end of the bracket, move the bracket to a suitable position, remove the old slewing bearing and replace it with a new one. When the bracket returns to the original position, transport the slewing bearing into the slewing platform to complete the replacement of the slewing bearing, which is convenient for adjustment. The platform on the bracket provides a slideway for the slewing bearing, enabling the slewing bearing to move along a predetermined trajectory and bearing the weight of the slewing bearing. The setting above the platform can not only enhance the strength of the bracket, but also limit the lateral movement of the slewing bearing, preventing the slewing bearing from deviating beyond the controllable range during the movement process.

[0008] Further, a first inclined plate is also arranged between the platform and the vertical plate. One side edge of the first inclined plate is connected to the platform, and the other side plate of the first inclined plate is connected to the vertical plate. One side edge of the first inclined plate is perpendicular to the other side edge of the first inclined plate.

[0009] With the above settings, the first inclined plate arranged between the platform and the vertical plate can provide additional support for the vertical plate and enhance the overall stability.

[0010] Further, a second inclined plate is also arranged between the lower part of the platform and the bracket. One side edge of the second inclined plate is connected to the platform, and the other side plate of the second inclined plate is connected to the vertical plate. One side edge of the second inclined plate is perpendicular to the other side edge of the second inclined plate.

[0011] With the above settings, the second inclined plate can effectively disperse the stress on the platform, enhance the anti-overturning ability of the platform, improve the load-bearing capacity of the platform, ensure that the platform does not deform when the slewing bearing moves, and thus improve the structural stability.

[0012] Further, the limiting plate is arranged above the platform, and the upper end surface of the limiting plate is flush with the upper end surface of the vertical plate.

[0013] With the above settings, the limiting plate can limit the longitudinal position of the slewing bearing, effectively control the movement range of the slewing bearing on the platform, prevent the slewing bearing from exceeding the predetermined position and causing safety accidents, and improve the equipment safety.

[0014] Further, a lifting lug is vertically arranged at one end of the platform away from the slewing platform, and a lifting lug is horizontally arranged at one end of the platform close to the slewing platform.

[0015] With the above settings, the lifting lug can set a lifting point for the crane. Using the lifting lug can prevent the rope or other lifting equipment from directly rubbing or colliding with the lifted item, ensure the stability of the equipment during the lifting process, and a lifting lug is horizontally arranged at one end close to the slewing platform to prevent the influence of the lifting lug on the sliding of the slewing bearing.

[0016] Further, the upper end of the support plate is also connected to the lower part of the platform.

[0017] With the above settings, the support plate is also connected to the lower part of the platform to improve the load-bearing capacity of the platform and ensure the movement track of the slewing bearing on the platform.

[0018] Further, more than two support columns are arranged between the two brackets, and both ends of the support column are respectively connected to the lower ends of the brackets.

[0019] With the above settings, the support column can effectively disperse the stress between the two brackets, avoid stress concentration at specific points, thereby reducing structural deformation or damage caused by uneven stress, improve the load-bearing capacity of the brackets, ensure that the brackets do not undergo structural deformation when moving the slewing bearing, and thus improve the stability.

[0020] Further, mounting holes are arranged on the fixing plate, and a first mounting hole corresponding to the mounting hole is arranged at one end of the bracket close to the slewing platform, and the bolt passes through the mounting hole and the first mounting hole to achieve detachable connection.

[0021] With the above settings, the detachable connection can be conveniently achieved through the connection method of the mounting hole, the first mounting hole and the bolt.

[0022] Further, more than two support plates are arranged at intervals.

[0023] With the above settings, it is convenient to bundle and fix the slewing bearing through the interval between the two support plates. Brief Description of the Drawings

[0024] Figure 1 This is a schematic diagram of the overall structure of the present utility model.

[0025] Figure 2 This is an enlarged view of part A of the present utility model.

[0026] Figure 3 This is a partial top view of the base and the conveying mechanism in the present utility model.

[0027] Figure 4 This is another perspective view of the slewing platform, the jack and the conveying mechanism of the present utility model.

[0028] Figure 5 It is Figure 4 an enlarged view of part B in

[0029] Figure 6 This is a schematic diagram of the crane and the support working in the present utility model.

[0030] Explanation of the reference numerals in the drawings: 1 - support; 10 - first mounting hole; 11 - vertical plate; 12 - first inclined plate; 13 - platform; 14 - second inclined plate; 15 - limiting plate; 16 - support column; 17 - guide rail; 18 - lifting lug; 2 - base; 21 - jack; 211 - trimmed edge; 3 - fixing plate; 311 - mounting hole; 4 - support frame; 5 - slewing bearing. Detailed Description of the Preferred Embodiment

[0031] As Figures 1-5 shown, a slewing platform with a replacement tooling is arranged on the base 2 of the crane. The base 2 is fixedly provided with a jacking mechanism. The jacking mechanism includes a base and a jack 21. The base is fixedly connected to the base 2. A slewing bearing 5 is arranged between the slewing platform and the base. The bottom of the jack 21 is fixedly connected to the base. The slewing platform includes a conveying mechanism and a fixing plate 3. The conveying mechanism includes a support 1, a support plate and a guide rail 17. The guide rail 17 is detachably connected to the support 1. One end of the fixing plate 3 is fixedly connected to the jack 21, and the other end of the fixing plate 3 is detachably connected to the support 1. The support 1 is fixedly connected to the support plate. When it is necessary to replace the slewing bearing 5, when the jacking mechanism jacks the slewing platform 13 to a predetermined position and it is necessary to pull out the slewing bearing 5, the guide rail 17 can be extended into the base 2, the slewing support is removed and placed on the guide rail 17, and a hoist can be arranged on the support 1 to pull out the slewing bearing 5. The support 1 can provide a guiding function for the slewing bearing 5. When the slewing bearing 5 reaches the predetermined position, the slewing bearing 5 is fixed on the support 1, and the support 1 is moved to a suitable position to remove the old slewing bearing 5 and replace it with a new slewing bearing 5. When the support 1 returns to the original position, the slewing bearing 5 is transported into the slewing platform 13 to complete the replacement of the slewing bearing 5.

[0032] AsFigure 2 As shown, the bracket 1 is provided with a platform 13. Above the platform 13, a vertical plate 11 is arranged. Between the platform 13 and the vertical plate, there are also two or more first inclined plates 12. One side of the first inclined plate 12 is connected to the vertical plate 11, and the other side plate of the first inclined plate 12 is connected to the platform 13. One side of the first inclined plate 12 is perpendicularly arranged with the other side. Below the platform 13 and the bracket 1, there are also two or more second inclined plates 14. One side of the second inclined plate 14 is connected to the platform 13, and the other side of the second inclined plate 14 is connected to the outer side surface of the bracket 1. One side of the second inclined plate 14 is perpendicularly arranged with the other side. In this embodiment, the bracket 1 is of a plate structure, and the thickness of the plate of the bracket 1 near one end of the slewing platform is smaller than the thickness of the plate of the bracket 1 far from one end of the slewing platform. The two or more first inclined plates 12 are arranged at intervals along the extending direction of the platform 13, and the two or more second inclined plates 14 are arranged at intervals along the extending direction of the platform 13. The platform 13 on the bracket 1 provides a slideway for the slewing bearing 5, enabling the slewing bearing 5 to move along a predetermined track and bearing the weight of the slewing bearing 5. The arrangement above the platform 13 can not only enhance the strength of the bracket 1, but also limit the lateral movement of the slewing bearing 5, preventing the slewing bearing 5 from deviating beyond the controllable range during the movement. The first inclined plate 12 arranged between the platform 13 and the vertical plate 11 can provide additional support for the vertical plate, enhancing the overall stability.

[0033] The second inclined plate 14 can effectively disperse the stress received by the platform 13, enhance the anti-overturning property of the platform 13, improve the load-bearing capacity of the platform 13, ensure that the platform 13 does not deform when the slewing bearing 5 moves, thereby improving the stability of the structure. The platform 13 is provided with a limit plate 15, and the limit plate 15 can limit the longitudinal position of the slewing bearing 5, effectively controlling the movement range of the slewing bearing 5 on the platform 13, preventing the slewing bearing 5 from exceeding the predetermined position and causing safety accidents, and improving the safety of the equipment.

[0034] As Figure 3 shown, the two brackets 1 are connected by a support plate 19. The support plate 19 is arranged below the platform 13, and both ends of the support plate 19 are respectively connected to the two brackets 1, enhancing the integrity of the structure, enabling it to bear a greater load. At the same time, the support plate 19 is also connected to the lower part of the platform 13 to improve the load-bearing capacity of the platform 13 and ensure the movement track of the slewing bearing 5 on the platform 13.

[0035] A support column 16 is also arranged between the two brackets 1. The support column 16 can effectively disperse the stress between the two brackets 1, avoid stress concentration at specific points, thereby reducing the structural deformation or damage caused by uneven stress, improving the load-bearing capacity of the bracket 1, ensuring that the bracket 1 does not undergo structural deformation when moving the slewing bearing 5, and thus improving the stability.

[0036] As Figure 4 andFigure 5 As shown, a side 211 is provided at the bottom of the jack 21. One end of the fixing plate 3 is fixed to the side 211, and the other end of the fixing plate 3 is detachably connected to the bracket 1. In this embodiment, one end of the fixing plate 3 is welded to the side 211. An installation hole 311 is provided at the other end of the fixing plate 3, and a first installation hole 10 corresponding to the installation hole 311 is provided on the bracket 1. The detachable connection is achieved by arranging bolts in the installation hole 311 and the first installation hole 10.

[0037] A lifting lug 18 is vertically provided at one end of the bracket 1 away from the slewing platform, and more than two lifting lugs 18 are horizontally provided at one end of the bracket close to the slewing platform. The lifting lugs are used to be connected with a crane to lift the conveying mechanism.

[0038] As Figure 5 shown, when the slewing bearing 5 needs to be replaced, the support frame 4 is installed in advance under the moving direction of the slewing bearing 5.

[0039] The working principle of the present utility model: when the slewing bearing 5 needs to be replaced, the support frame 4 is installed in advance under the moving direction of the slewing bearing 5. The jack 21 jacks up the slewing platform 13 to a predetermined position. The crane extends the guide rail 17 into the base 2, and places the bracket 1 on the support frame 4. One end of the fixing plate 3 is connected to the jack 21, and the other end of the fixing plate 3 is connected to the bracket 1 by installing bolts in the installation hole 311 and the first installation hole 10. At this time, the slewing bearing 5 is unloaded onto the guide rail 17, and a chain block is arranged on the bracket 1 to horizontally drag out the slewing bearing 5. The slewing bearing 5 slides on the platform 13, and the vertical plate 11 is used to complete the lateral limit of the slewing bearing 5. The limit plate 15 on the bracket 1 is used to complete the longitudinal limit of the slewing bearing 5. When the slewing bearing 5 reaches the position of the limit plate 15, the slewing bearing 5 is tied and fixed to the bracket 1 by an external rope. The connection between the other end of the fixing plate 3 and the bracket 1 is removed. The crane is connected to the lifting lug 11 on the bracket 1 to move the bracket 1 to a suitable position to unload the old slewing bearing 5. The new slewing bearing 5 is replaced and fixed on the bracket 1. The crane then extends the guide rail 17 into the base 2, and the other end of the fixing plate 3 is connected to the bracket 1. The chain block moves the slewing bearing 5 into the slewing platform 13, and the slewing bearing 5 is connected to the slewing platform 13. The connection between the fixing plate 3 and the bracket 1 is removed. The crane moves the bracket 1 to a suitable position, and the jack 21 slowly descends to connect the slewing bearing 5 to the base 2. The jacking mechanism is removed to complete the replacement of the slewing bearing 5.

Claims

1. A rotary platform with a tool changer, arranged on a base of a crane, wherein the base is fixedly provided with a lifting mechanism, wherein the lifting mechanism comprises a base and a jack, wherein the base is fixedly connected to the base, and the jack is fixedly connected to the base, and wherein: It includes a conveying mechanism and a fixed plate. The conveying mechanism includes two brackets, two or more support plates and a guide rail. One end of the guide rail is arranged on a base, and the other end of the guide rail is detachably connected to the bracket. One end of the fixed plate is fixedly connected to the bottom of the jack, and the other end of the fixed plate is detachably connected to the bracket. Both ends of the two or more support plates are respectively connected to the two brackets. Vertical plates are respectively arranged on both sides of the conveying mechanism on the two brackets, and a limiting plate is arranged between the two brackets.

2. A rotary platform with a tool changer according to claim 1, characterized in that: A first inclined plate is also arranged between the platform and the vertical plate, one side of the first inclined plate is connected to the platform, the other side of the first inclined plate is connected to the vertical plate, and one side of the first inclined plate is arranged perpendicularly to the other side of the first inclined plate.

3. The rotary platform with tool replacement according to claim 1, characterized in that: A second inclined plate is also arranged below the platform and the bracket, one side of the second inclined plate is connected to the platform, the other side of the second inclined plate is connected to the vertical plate, and one side of the second inclined plate is vertically arranged with the other side of the second inclined plate.

4. The rotary platform with tool replacement according to claim 1, characterized in that: The limiting plate is arranged above the platform, and the upper end surface of the limiting plate is arranged flush with the upper end surface of the vertical plate.

5. The rotary platform with tool replacement according to claim 1, characterized in that: A lifting lug is vertically arranged at one end of the platform away from the rotating platform, and a lifting lug is horizontally arranged at one end of the platform close to the rotating platform.

6. The rotary platform with tool replacement according to claim 1, characterized in that: The upper end of the support plate is also connected to the lower side of the platform.

7. The rotary platform with tool replacement according to claim 1, characterized in that: More than two support columns are arranged between the two brackets, and both ends of the support columns are respectively connected to the lower ends of the brackets.

8. The rotary platform with tool replacement according to claim 1, characterized in that: The fixing plate is provided with a mounting hole, and one end of the bracket close to the rotating platform is provided with a first mounting hole corresponding to the mounting hole, and a bolt passes through the mounting hole and the first mounting hole to realize a detachable connection.

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