Slewing bearing protection mechanism for engineering machinery

Abstract

The utility model discloses a slewing bearing protection mechanism for engineering machinery, and belongs to the technical field of protection mechanisms. The device comprises a lower supporting seat, an arc-shaped plate and a slewing bearing, the slewing bearing is rotationally installed on the lower supporting seat, an upper supporting seat is arranged on the outer wall of the top of the slewing bearing, an arc-shaped protective cover is arranged on the outer wall of the upper supporting seat, the slewing bearing is located in an inner cavity of the arc-shaped protective cover, and a through groove which is communicated with the inner cavity of the arc-shaped protective cover and is in a convex shape is formed in the outer wall of the arc-shaped protective cover. By means of the structural design of the mounting groove, the limiting groove, the fixing plate and the connecting plate, the positioning piece and the arc-shaped protective cover are assembled in a modularized mode, when the positioning piece is maintained or replaced, maintenance personnel do not need to carry out the disassembly procedure in a narrow space, and the maintenance efficiency is improved. And after the fixing plate is taken out according to the modularized interface, the positioning piece can be conveniently maintained or replaced outside the arc-shaped protective cover, so that the operation difficulty is reduced.

Description

Technical Field

[0001] This utility model relates to the field of protective mechanism technology, specifically a slewing bearing protective mechanism for engineering machinery. Background Technology

[0002] In the field of construction machinery, slewing bearings are key components that enable relative rotational movement between equipment parts. Their stability and reliability directly affect the overall performance of the machine. To protect slewing bearings from external impurities, dust, moisture, and other corrosive substances, and to extend their service life, protective covers are often installed on the outside of the slewing bearing. A Chinese utility model patent (publication number: CN220334617U) discloses a crane slewing mechanism. This mechanism uses a drive motor to rotate a drive gear, which in turn drives the slewing bearing to rotate through meshing with the drive gear. During rotation, protective covers and gear guards at the bottom of the fixed housing provide complete enclosed protection for the slewing bearing and drive gear. This achieves the effect of preventing dust and foreign objects from entering the slewing bearing and gears when operating in complex outdoor environments, ensuring the normal operation of both the gears and the slewing bearing.

[0003] However, the above-mentioned device still has some shortcomings in use: In the prior art, the spring positioning component used to position the movable plate is directly fixed on the side wall of the protective cover groove. With the frequent use of construction machinery, the deformation capacity of the spring in the spring positioning component gradually decreases under repeated force. In order to ensure that the movable plate can always be accurately and stably positioned, the spring positioning component must be replaced. Without removing the protective cover, the space in the protective cover groove is often relatively small, which seriously restricts the range of hand movement of maintenance personnel and makes it inconvenient to handle. Therefore, in view of the above situation, a slewing bearing protection mechanism for construction machinery is proposed. Utility Model Content

[0004] The purpose of this utility model is to provide a protective mechanism for slewing bearings in engineering machinery. Through the structural design of mounting groove, limiting groove, fixing plate and connecting plate, it is more convenient to maintain or replace positioning parts, and solves the problem of inconvenience when replacing spring positioning parts.

[0005] This utility model is achieved through the following technical solution:

[0006] This utility model is a protective mechanism for a slewing bearing in engineering machinery, including a lower support base, an arc-shaped plate, and a slewing bearing. The slewing bearing is rotatably mounted on the lower support base. An upper support base is provided on the top outer wall of the slewing bearing, and an arc-shaped protective cover is provided on the outer wall of the upper support base. The slewing bearing is located in the inner cavity of the arc-shaped protective cover.

[0007] The outer wall of the arc-shaped protective cover has a through groove in the shape of a "convex" that connects to its inner cavity. There are two mounting grooves on the arc-shaped protective cover. Limiting grooves are opened on the two side walls of the through groove. The limiting grooves are connected to the mounting grooves. Fixing plates can be detachably installed on the mounting grooves.

[0008] Both sides of the curved plate are provided with raised edges, and magnets are embedded in the raised edges. When the curved plate is fitted with the through groove, the raised edges are engaged with the limiting groove.

[0009] Furthermore, a limit rod is fixed inside the mounting groove, and a rectangular groove communicating with the mounting groove is opened on the top of the arc-shaped protective cover, with screw holes on the rectangular groove.

[0010] Furthermore, a connecting plate is fixed on the fixing plate. The connecting plate has a through hole through which a bolt is inserted. When the connecting plate mates with the rectangular groove, the bolt engages with the threaded hole.

[0011] Furthermore, a circular hole is provided on the top of the fixing plate, and the circular hole is in clearance fit with the limiting rod.

[0012] Furthermore, a positioning element is provided on the fixing plate, and a positioning hole is provided on the protruding edge, and the positioning element is engaged with the positioning hole.

[0013] This utility model has the following beneficial effects:

[0014] This utility model, through the structural design of the mounting groove, limiting groove, fixing plate and connecting plate, enables the positioning component to be modularly assembled with the arc-shaped protective cover. When maintaining or replacing the positioning component, maintenance personnel no longer need to deal with the disassembly process in a narrow space. They only need to take out the fixing plate according to the modular interface, which makes it easy to maintain or replace the positioning component from the outside of the arc-shaped protective cover, thus reducing the difficulty of operation.

[0015] This utility model, through the structural design of limiting groove, convex edge and magnet, can improve the stability of the arc plate after assembly in the horizontal direction during use, reduce the problem of the arc plate directly loosening and falling off due to mechanical vibration, and improve the stability of the arc plate during use after assembly.

[0016] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the protective mechanism.

[0018] Figure 2 This is a schematic diagram of the assembly structure of the arc-shaped protective cover and the arc-shaped plate.

[0019] Figure 3 for Figure 2 A magnified schematic diagram of the structure at point A in the middle.

[0020] Figure 4 This is a structural diagram of the fixed plate.

[0021] Figure 5 This is a schematic diagram of the arc-shaped plate.

[0022] In the diagram: 1. Lower support base; 2. Arc-shaped protective cover; 200. Mounting groove; 201. Limiting groove; 202. Fixing plate; 203. Positioning component; 204. Connecting plate; 205. Round hole; 206. Limiting rod; 3. Arc-shaped plate; 300. Protruding edge; 301. Positioning hole; 4. Upper support base; 5. Slewing bearing. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-5 This utility model provides a technical solution: a slewing bearing protection mechanism for engineering machinery, including a lower support base 1, an arc plate 3, and a slewing bearing 5. The slewing bearing 5 is rotatably mounted on the lower support base 1. The lower support base 1 is made of high-strength steel by casting or welding. Its shape and size are customized according to the specific design requirements of the engineering machinery. The surface is flattened and rust-proofed to ensure good fit with the slewing bearing 5 and long-term stability. The lower support base 1 has precisely machined mounting holes and positioning surfaces for accurate installation of the slewing bearing 5, ensuring that the slewing bearing 5 can rotate smoothly.

[0025] The top outer wall of the slewing bearing 5 is provided with an upper support seat 4, and the outer wall of the upper support seat 4 is provided with an arc-shaped protective cover 2. The slewing bearing 5 is located in the inner cavity of the arc-shaped protective cover 2.

[0026] The outer wall of the arc-shaped protective cover 2 is provided with a through groove in the shape of a "convex" that connects to its inner cavity. The arc-shaped protective cover 2 is provided with an installation groove 200. There are two installation grooves 200. Limiting grooves 201 are respectively provided on the two side walls of the through groove. The limiting grooves 201 are connected to the installation grooves 200. A fixing plate 202 can be detachably installed on the installation grooves 200.

[0027] A limiting rod 206 is fixed inside the mounting slot 200. A round hole 205 is opened on the top of the fixing plate 202, and the round hole 205 is clearance-fitted with the limiting rod 206. A rectangular slot communicating with the mounting slot 200 is opened on the top of the arc-shaped protective cover 2. The rectangular slot has a screw hole. A connecting plate 204 is fixed on the fixing plate 202. The connecting plate 204 has a through hole through which a bolt passes. When the connecting plate 204 is fitted with the rectangular slot, the bolt and the screw hole are threadedly fitted. The size of the rectangular slot matches the connecting plate 204 and is used to place the connecting plate 204. The screw hole is located on the rectangular slot and fits with the bolt. The fixing plate 202 is firmly fixed to the arc-shaped protective cover 2 through the threaded connection. When it is necessary to replace the positioning part 203, first remove the arc-shaped plate 3, then use a screwdriver to unscrew the bolt, and then pull the fixing plate 202 out of the mounting slot 200 to realize the maintenance and replacement of the positioning part 203 from the outside.

[0028] Both sides of the arc plate 3 are provided with protruding edges 300, and magnets are embedded in the protruding edges 300. The fixing plate 202 is made of metal material and can be magnetically attracted to the magnets, which further improves the stability of the arc plate 3 after assembly and makes it less likely to loosen. When the arc plate 3 is engaged with the through groove, the protruding edges 300 are inserted into the limiting groove 201.

[0029] Furthermore, the fixing plate 202 has an assembly groove, and a positioning component 203 is provided on the assembly groove. The protruding edge 300 has a positioning hole 301. The positioning component 203 is engaged with the positioning hole 301. The positioning component 203 includes a spring fixed in the assembly groove. One end of the spring is fixed with a limit post. One end of the limit post is hemispherical and engages with the positioning hole 301.

[0030] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A protective mechanism for a slewing bearing in engineering machinery, comprising an arc-shaped plate (3) and a slewing bearing (5), wherein an upper support seat (4) is provided on the top outer wall of the slewing bearing (5), and an arc-shaped protective cover (2) is provided on the outer wall of the upper support seat (4), and the slewing bearing (5) is located in the inner cavity of the arc-shaped protective cover (2), characterized in that: The outer wall of the arc-shaped protective cover (2) is provided with a through groove in the shape of a "convex" connecting the inner cavity. The arc-shaped protective cover (2) is provided with an installation groove (200). There are two installation grooves (200). Limiting grooves (201) are provided on both sides of the through groove. The limiting grooves (201) are connected to the installation grooves (200). A fixing plate (202) can be detachably installed on the installation groove (200). Both sides of the arc plate (3) are provided with protruding edges (300), and magnets are embedded in the protruding edges (300). When the arc plate (3) is engaged with the through groove, the protruding edges (300) are inserted into the limiting groove (201).

2. The slewing bearing protection mechanism for engineering machinery according to claim 1, characterized in that, It also includes a lower support (1), on which the slewing bearing (5) is rotatably mounted.

3. The slewing bearing protection mechanism for engineering machinery according to claim 1, characterized in that, A limiting rod (206) is fixed inside the mounting groove (200), and a rectangular groove communicating with the mounting groove (2) is opened on the top of the arc-shaped protective cover (2), and the rectangular groove has a screw hole.

4. The slewing bearing protection mechanism for engineering machinery according to claim 3, characterized in that, A connecting plate (204) is fixed on the fixing plate (202). The connecting plate (204) has a through hole, and a bolt is inserted through the through hole. When the connecting plate (204) is engaged with the rectangular groove, the bolt is engaged with the threaded hole.

5. A slewing bearing protection mechanism for engineering machinery according to claim 4, characterized in that, The top of the fixing plate (202) is provided with a circular hole (205), and the circular hole (205) is in clearance fit with the limiting rod (206).

6. A slewing bearing protection mechanism for engineering machinery according to claim 1, characterized in that, The fixing plate (202) is provided with a positioning element (203), and the protruding edge (300) is provided with a positioning hole (301). The positioning element (203) is engaged with the positioning hole (301).

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