Engineering machinery revolving platform supporting structure

Abstract

The utility model relates to the technical field of slewing platform supporting, in particular to an engineering machinery slewing platform supporting structure which comprises a slewing bearing outer ring, a slewing bearing inner ring is rotatably installed on the inner ring of the slewing bearing outer ring, a plurality of positioning grooves are formed in the top end face of the slewing bearing outer ring, and the positioning grooves are arranged on the top end face of the slewing bearing outer ring. First limiting blocks are movably installed on the inner sides of the multiple positioning grooves, the top end faces of the first limiting blocks are of an arc-shaped structure, the first limiting blocks are matched with inserting blocks, and the inserting blocks are of an L-shaped structure. Through the arrangement of a first limiting block, an inserting block can be inserted into a positioning groove to provide a limiting effect on the inserting block, so that the quick mounting effect of the mounting table is achieved, and through the arrangement of a rotating rod, the rotating rod can be pushed to enable the first limiting block to retract into a first storage cavity, so that the quick dismounting of the mounting table is achieved.

Description

Technical Field

[0001] This utility model relates to the field of slewing platform support technology, specifically to a slewing platform support structure for engineering machinery. Background Technology

[0002] Slewing bearings are a new type of mechanical component, consisting of an inner ring, an outer ring, and rolling elements. They are large bearings capable of withstanding comprehensive loads, simultaneously bearing significant axial and radial loads and overturning moments. Slewing bearings are widely used in modern industry, serving as essential transmission components for machinery where two objects need to rotate relative to each other and simultaneously withstand axial, radial, and overturning moments. With the rapid development of the mechanical engineering industry, slewing bearings have found widespread application in engineering machinery and light industrial machinery.

[0003] In most existing systems, the outer ring of a slewing bearing is connected to the mounting platform on construction machinery using bolts. Firstly, bolted connections are cumbersome to install or remove, requiring each bolt to be installed or removed individually, which is time-consuming and labor-intensive. Secondly, the bolts bear lateral torsional forces during the rotation of the slewing bearing, and over time, these bolts are prone to deformation, affecting the normal operation of the slewing bearing. Therefore, this paper proposes a slewing platform support structure for construction machinery that allows for quick installation or removal of the mounting platform from the outer ring of the slewing bearing, and makes the connection less prone to deformation. Utility Model Content

[0004] To address the problems in the existing technology, this utility model provides a support structure for a slewing platform of engineering machinery, which allows for quick installation or disassembly of the mounting platform and the outer ring of the slewing bearing, and the connection is less prone to deformation.

[0005] The technical solution adopted by this utility model to solve its technical problem is a support structure for a slewing platform of engineering machinery, including a slewing bearing outer ring, an inner ring of the slewing bearing inner ring rotatably installed on the inner ring of the slewing bearing outer ring, a positioning groove is opened on the top surface of the slewing bearing outer ring, the positioning groove is provided in multiple places, a first limiting block is movably installed on the inner side of the multiple positioning grooves, the top surface of the first limiting block is set in an arc shape, the first limiting block is adapted to the insertion block, and the insertion block is set in an L shape.

[0006] One end of the first limiting block is fixedly connected to one side of the first limiting plate. The first limiting plate is movably installed inside the first storage cavity. One side of the first storage cavity is fixedly connected to one end of the first spring. There are two first springs. The other ends of the two first springs are fixedly connected to the side of the first limiting plate away from the first limiting block.

[0007] By adopting the above technical solution, the setting of the first limiting block can provide a limiting effect on the insert block after it is inserted into the positioning groove, thereby achieving the effect of quick installation of the mounting platform. In conjunction with the setting of the rotating rod, the rotating rod can be pushed to retract the first limiting block into the first storage cavity, so as to achieve quick disassembly of the mounting platform.

[0008] Compared to bolts, the insert has a larger cross-section and is less prone to deformation, making the connection between the mounting platform and the slewing platform support structure of the construction machinery more reliable.

[0009] Specifically, the lower part of one side of the first limiting plate is fixedly connected to one end of the connecting rod, and the end of the connecting rod away from the first limiting plate is rotatably connected to one end of the rotating rod.

[0010] Specifically, both the rotating rod and the connecting rod are movably installed inside the hole, which is located on the outer side of the outer ring of the slewing bearing. There are multiple holes, each located directly below a positioning groove.

[0011] By adopting the above technical solution, the rotating rod is connected to the first limiting plate through the connecting rod, which allows the rotating rod and the first limiting block to move synchronously, thereby realizing a quick disassembly operation. The rotating rod can be rotated to make the slot face upward, which can prevent the second limiting block from getting stuck in the slot.

[0012] Specifically, a slot is provided on the outer side of the rotating rod for the insertion of a second limiting block, and one side of the second limiting block is arranged in an arc shape.

[0013] Specifically, a second storage cavity is provided directly below the hole, and the interior of the hole is connected to the interior of the second storage cavity.

[0014] Specifically, the bottom of the second storage cavity is fixedly connected to the bottom end of the second spring, the top end of the second spring is fixedly connected to the bottom end of the second limiting plate, and the top end of the second limiting plate is fixedly connected to the bottom end of the second limiting block.

[0015] By adopting the above technical solution, the second insert block can be locked into the slot by the elastic force of the second spring, thereby limiting the position of the rotating rod. This can prevent the first limiting block from being pushed out by the first spring, making it easier to pull out the insert block.

[0016] The beneficial effects of this utility model are:

[0017] (1) The engineering machinery rotary platform support structure described in this utility model can provide a limiting effect on the insert block after it is inserted into the positioning groove by setting the first limiting block, thereby achieving the effect of quick installation of the mounting platform. In conjunction with the setting of the rotating rod, the rotating rod can be pushed to retract the first limiting block into the first storage cavity, so as to achieve quick disassembly of the mounting platform.

[0018] (2) The engineering machinery slewing platform support structure described in this utility model has a larger cross-section and is less prone to deformation than bolts, making the connection between the engineering machinery mounting platform and the slewing platform support structure more reliable. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a schematic diagram of the first limiting block structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the internal structure of the outer ring of the slewing bearing of this utility model;

[0023] In the diagram: 1. Positioning groove; 2. Rotating rod; 3. Hole; 4. First limiting block; 5. Outer ring of slewing bearing; 6. Inner ring of slewing bearing; 7. First spring; 8. Slot; 9. Connecting rod; 10. First limiting plate; 11. Second limiting plate; 12. Second spring; 13. Second storage cavity; 14. Second limiting block; 15. Insertion block; 16. First storage cavity. Detailed Implementation

[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0025] To facilitate quick installation and disassembly of the mounting platform and the outer ring of the slewing bearing, and to reduce the likelihood of deformation at the connection point, as one embodiment of this utility model, such as... Figures 1-3 As shown, the present invention discloses a support structure for a slewing platform of engineering machinery, including a slewing bearing outer ring 5, an inner ring 6 of a slewing bearing rotatably mounted on the inner ring of the outer ring 5, a positioning groove 1 on the top surface of the outer ring 5, and multiple positioning grooves 1, with a first limiting block 4 movably mounted on the inner side of each of the multiple positioning grooves 1. The top surface of the first limiting block 4 is arc-shaped, and the first limiting block 4 is adapted to an insert block 15, which is L-shaped.

[0026] One end of the first limiting block 4 is fixedly connected to one side of the first limiting plate 10. The first limiting plate 10 is movably installed inside the first storage cavity 16. One side of the first storage cavity 16 is fixedly connected to one end of the first spring 7. There are two first springs 7. The other ends of the two first springs 7 are fixedly connected to the side of the first limiting plate 10 away from the first limiting block 4.

[0027] In use, insert the plug 15 at the bottom of the mounting platform into the positioning groove 1. Since the top surface of the first limiting block 4 is set with an arc structure, when the plug 15 is inserted into the positioning groove 1, it will push the first limiting block 4 into the first storage cavity 16 and compress the first spring 7. After the plug 15 is fully inserted into the positioning groove 1, the first spring 7 will push the first limiting block 4 out, so that the first limiting block 4 restricts the plug 15 from being pulled out. In this way, the mounting platform is quickly connected to the outer ring 5 of the slewing bearing. When disassembling the mounting platform, it is only necessary to push the rotating rod 2, so that the rotating rod 2 pushes the first limiting plate 10 through the connecting rod 9 and compresses the first spring 7, so that the first limiting block 4 is fully retracted into the first storage cavity 16. Then, it is only necessary to pull the plug 15 out of the positioning groove 1 to achieve quick disassembly.

[0028] It should be noted that the insert 15 needs to be fixedly installed at the bottom of the mounting platform.

[0029] The present invention further includes that the lower part of one side of the first limiting plate 10 is fixedly connected to one end of the connecting rod 9, and the end of the connecting rod 9 away from the first limiting plate 10 is rotatably connected to one end of the rotating rod 2.

[0030] This utility model also includes that the rotating rod 2 and the connecting rod 9 are both movably installed inside the hole 3. The hole 3 is opened on the outside of the outer ring 5 of the slewing bearing. There are multiple holes 3, and the multiple holes 3 are respectively located directly below the multiple positioning grooves 1.

[0031] In use, the rotating rod 2 is connected to the first limiting plate 10 through the connecting rod 9, which allows the rotating rod 2 and the first limiting block 4 to move synchronously, thereby realizing a quick disassembly operation. The rotating rod 2 can be rotated to make the slot 8 face upward, which can prevent the second limiting block 14 from getting stuck in the slot 8.

[0032] The present invention also includes a slot 8 provided on the outer side of the rotating rod 2, the slot 8 being used for the insertion of the second limiting block 14, one side of the second limiting block 14 being arranged in an arc shape.

[0033] The present invention also includes a second storage cavity 13 provided directly below the hole 3, and the interior of the hole 3 is connected to the interior of the second storage cavity 13.

[0034] The present invention further includes that the bottom of the second storage cavity 13 is fixedly connected to the bottom end of the second spring 12, the top end of the second spring 12 is fixedly connected to the bottom end of the second limiting plate 11, and the top end of the second limiting plate 11 is fixedly connected to the bottom end of the second limiting block 14.

[0035] When in use, when the slot 8 is aligned with the second limiting block 14, the second limiting block 14 will be engaged in the slot 8 by the upward elastic force given by the second spring 12, thereby limiting the position of the rotating rod 2. This can prevent the first limiting block 4 from being pushed out by the first spring 7, thus facilitating the removal of the insert 15.

[0036] It should be noted that the side of the second limiting block 14 away from the first spring 7 is an arc-shaped surface.

[0037] In use, this invention first aligns the insert 15 at the bottom of the mounting platform on the engineering machinery with each positioning slot 1, and vertically inserts the insert 15 into the positioning slot 1. Because the top surface of the first limiting block 4 is arc-shaped, when the insert 15 is inserted into the positioning slot 1, it pushes the first limiting block 4 into the first receiving cavity 16 and compresses the first spring 7. After the insert 15 is fully inserted into the positioning slot 1, the first spring 7 pushes the first limiting block 4 out, preventing the insert 15 from being pulled out. This allows the mounting platform to be quickly connected to the outer ring 5 of the slewing bearing. When the mounting platform needs to be disassembled, simply push the rotating rod 2 towards the first spring 7, allowing the rotating rod 2 to push the first limiting plate 10 through the connecting rod 9 and compress the first spring 7, thereby allowing the first limiting block... 4. When fully retracted into the first storage cavity 16, the slot 8 is aligned with the second limiting block 14. The second limiting block 14, through the upward force of the second spring 12, will be locked into the slot 8, thereby limiting the position of the rotating rod 2. This prevents the first limiting block 4 from being pushed out by the first spring 7. Then, the insert 15 can be quickly removed from the positioning groove 1. When the first limiting block 4 needs to be reset, simply continue to push the rotating rod 2 towards the first spring 7, so that the slot 8 and the second limiting block 14 are misaligned. Then, rotate the rotating rod 2 so that the slot 8 faces upward. Then, the first spring 7 will push the first limiting plate 10 to push the first limiting block 4 and the rotating rod 2 back to their original positions. In this way, when the rotating rod 2 is reset, the second limiting block 14 cannot be locked into the slot 8.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A slewing platform support structure for a construction machine comprising a slewing bearing outer ring (5), characterised in that, The inner ring of the slewing bearing outer ring (5) is rotatably installed with a slewing bearing inner ring (6), the top end face of the slewing bearing outer ring (5) is provided with a positioning groove (1), the positioning groove (1) is provided with multiple, the inner side of multiple positioning grooves (1) is movably installed with a first limiting block (4), the top end face of the first limiting block (4) is provided in arc structure, the first limiting block (4) is matched with an insertion block (15), the insertion block (15) is provided in L-shaped structure; One end of the first limiting block (4) is fixedly connected with one side of the first limiting plate (10), the first limiting plate (10) is movably installed in the first receiving cavity (16), one side of the first receiving cavity (16) is fixedly connected with one end of the first spring (7), the first spring (7) is provided with two, the other end of the two first springs (7) is fixedly connected with the side of the first limiting plate (10) away from the first limiting block (4).

2. A support structure for a slewing platform of a construction machine according to claim 1, characterised in that The lower part of one side of the first limiting plate (10) is fixedly connected with one end of the connecting rod (9), the end of the connecting rod (9) away from the first limiting plate (10) is rotatably connected with one end of the rotating rod (2).

3. A support structure for a slewing platform of a construction machine according to claim 2, characterised in that The rotating rod (2) and the connecting rod (9) are movably installed in the hole (3), the hole (3) is provided on the outside of the slewing bearing outer ring (5), the hole (3) is provided with multiple, multiple hole (3) is located below multiple positioning groove (1) respectively.

4. A support structure for a slewing platform of a construction machine according to claim 2, wherein The outside of the rotating rod (2) is provided with a clamping groove (8), the clamping groove (8) is used for inserting the second limiting block (14), one side of the second limiting block (14) is provided in arc structure.

5. A support structure for a slewing platform of a construction machine according to claim 3, wherein The hole (3) is provided with a second receiving cavity (13) below, the inside of the hole (3) is communicated with the inside of the second receiving cavity (13).

6. An engineering machine swing platform support structure according to claim 5 wherein, The bottom of the second receiving cavity (13) is fixedly connected with the bottom end of the second spring (12), the top end of the second spring (12) is fixedly connected with the bottom end of the second limiting plate (11), the top end of the second limiting plate (11) is fixedly connected with the bottom end of the second limiting block (14).

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