Quick disassembly and assembly type slewing bearing

Abstract

The utility model discloses a quick disassembly and assembly type slewing bearing, and belongs to the technical field of slewing bearings. The device comprises an outer supporting ring, a U-shaped block and a protection plate, an inner supporting ring is rotationally arranged on an inner ring of the outer supporting ring, a fixing shell is arranged on the outer supporting ring and provided with an inner cavity, a sliding groove communicated with the inner cavity is formed in the top of the fixing shell, a dismounting and mounting mechanism is arranged in the inner cavity and comprises a shifting rod, and one end of the shifting rod penetrates out of the sliding groove; the U-shaped block is arranged at the top of the fixing shell and provided with an assembling cavity communicating with the sliding groove, and an opening communicating with the assembling cavity is formed in one end of the U-shaped block. Through the U-shaped block, the protection plate, the shifting block and the positioning rod, after the outer supporting ring and the inner supporting ring are assembled, the sliding groove can be shielded and protected, and the situation that dust enters the fixing shell and finally enters an annular groove formed in the inner supporting ring to affect the rotation performance of the slewing bearing in the using process of the slewing bearing is avoided; and the service life of the slewing bearing is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of slewing bearing technology, specifically to a quick-release slewing bearing. Background Technology

[0002] A slewing bearing is a mechanical support device used to support and position mechanical structures or equipment during rotational motion. It typically consists of an inner ring, an outer ring, rolling elements, and seals, capable of withstanding axial and radial loads and providing smooth motion during rotation. Slewing bearings are widely used in various industrial equipment, construction machinery, ships, bridge cranes, and wind power equipment. A Chinese utility model patent (publication number: CN221683378U) discloses a slewing bearing that is easy to maintain. During maintenance, the assembly and disassembly components allow for quick disassembly, improving worker efficiency and eliminating the need to carry additional tools.

[0003] However, the above-mentioned device still has some shortcomings in use: Specifically, since the lever slides on the outside of the fixed shell, the fixed shell has a sliding groove for the lever to move. When the slewing bearing is used in a complex environment, dust and other impurities can easily enter the interior of the fixed shell from the sliding groove. Since the fixed shell has a slot for the locking pin to pass through, dust and other impurities can enter the annular groove opened on the outside of the inner support ring through the slot. After the dust accumulates, it will affect the overall rotation performance of the slewing bearing. Therefore, a quick-disassembly slewing bearing is proposed to address the above situation. Utility Model Content

[0004] The purpose of this utility model is to provide a quick-assembly slewing bearing. Through the structural design of U-shaped block, protective plate, lever block and positioning rod, after the outer support ring and inner support ring are assembled, the sliding groove can be shielded and protected. This solves the problem that dust and other impurities enter the annular groove on the outside of the inner support ring through the groove opening, and the accumulation of dust will affect the overall rotation performance of the slewing bearing.

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

[0006] This utility model is a quick-assembly slewing bearing, including an outer support ring, a U-shaped block, and a protective plate. An inner support ring is rotatably mounted on the inner ring of the outer support ring. A fixed shell is mounted on the outer support ring, and the fixed shell has an inner cavity. A sliding groove communicating with the inner cavity is opened on the top of the fixed shell. An assembly / disassembly mechanism is installed in the inner cavity, including a lever with one end extending out of the sliding groove. The U-shaped block is mounted on the top of the fixed shell and has an assembly cavity communicating with the sliding groove. An opening communicating with the assembly cavity is opened at one end of the U-shaped block. Positioning holes are opened on both sides of the inner wall of the U-shaped block. A positioning mechanism is installed on the protective plate. When the protective plate is fitted onto the assembly cavity, one end of the protective plate abuts against the lever, and the positioning mechanism engages with the positioning hole.

[0007] Furthermore, the lever is a "T"-shaped rod with an opening that fits the lever clearance.

[0008] Furthermore, side grooves are provided on both sides of the assembly cavity, and both sides of the protective plate have raised edges, which slide in conjunction with the side grooves.

[0009] Furthermore, the positioning mechanism includes two rectangular grooves, and movable grooves connecting the rectangular grooves are respectively opened on both sides of the outer wall of the protective plate.

[0010] Furthermore, a lever is slidably fitted on the rectangular groove. One end of the lever is fixed with a positioning rod that protrudes from the movable groove and engages with a positioning hole. A spring is fixed on the side of the lever away from the positioning rod, and one end of the spring is fixed to the inner wall of the rectangular groove.

[0011] Furthermore, an installation groove is provided on the outer support ring, and the fixing shell is fixed on the installation groove.

[0012] This utility model has the following beneficial effects:

[0013] This utility model, through the structural design of U-shaped blocks, protective plates, levers, and positioning rods, can shield and protect the sliding groove after the outer and inner support rings are assembled. This prevents dust from entering the fixed shell during the use of the slewing bearing and eventually entering the annular groove on the inner support ring, thus affecting the rotational performance of the slewing bearing and improving its service life.

[0014] This utility model, through the structural design of U-shaped block, protective plate, lever block and positioning rod, not only plays a dustproof role, but also limits the lever, thereby effectively avoiding the collision between the ball and the annular groove in the disassembly and assembly mechanism caused by mechanical vibration, reducing the wear of the ball and the annular groove, and extending the service life of the slewing bearing.

[0015] 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

[0016] Figure 1 This is a schematic diagram of the slewing bearing.

[0017] Figure 2 This is a schematic diagram of the assembly structure of the fixed shell.

[0018] Figure 3 This is a schematic diagram of the assembly structure of the protective plate.

[0019] Figure 4 This is a schematic diagram of the assembly structure of the positioning rod.

[0020] Figure 5 This is a schematic diagram of the assembly structure of the positioning rod.

[0021] In the diagram: 1. Outer support ring; 2. Inner support ring; 3. Mounting groove; 4. Fixed shell; 400. Sliding groove; 5. Disassembly and assembly mechanism; 500. Lever; 6. U-shaped block; 600. Assembly cavity; 601. Opening; 602. Side groove; 603. Positioning hole; 7. Protective plate; 700. Rectangular groove; 701. Movable groove; 8. Lever; 9. Positioning rod; 10. Spring. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1-5 This utility model provides a technical solution: a quick-release slewing bearing, including an outer support ring 1, a U-shaped block 6, and a protective plate 7. The inner ring of the outer support ring 1 is rotatably provided with an inner support ring 2. A fixed shell 4 is provided on the outer support ring 1. Specifically, an installation groove 3 is opened on the outer support ring 1, and the fixed shell 4 is fixed on the installation groove 3. The fixed shell 4 has an inner cavity, and a sliding groove 400 communicating with the inner cavity is opened on the top of the fixed shell 4. A disassembly and assembly mechanism 5 is provided in the inner cavity. The disassembly and assembly mechanism 5 includes a lever 500 with one end extending out of the sliding groove 400. The lever 500 is a "T"-shaped rod.

[0024] The inner support ring 2 has an annular groove on its outside. The disassembly and assembly mechanism 5 also includes a ball bearing that is rolled on the locking post. The ball bearing cooperates with the annular groove, which is not shown in the figure. The disassembly and assembly mechanism 5 can quickly realize the disassembly and assembly of the outer support ring 1 and the inner support ring 2. The specific composition structure of the disassembly and assembly mechanism 5 is the same as that of the assembly and disassembly components in the prior art, and will not be described in detail here.

[0025] U-shaped block 6 is set on the top of fixed shell 4. U-shaped block 6 has an assembly cavity 600 that connects to sliding groove 400. One end of U-shaped block 6 has an opening 601 that connects to assembly cavity 600. The opening 601 is clearance-fitted with lever 500. Positioning holes 603 are provided on both sides of the inner wall of U-shaped block 6.

[0026] The protective plate 7 is provided with a positioning mechanism. When the protective plate 7 is fitted into the assembly cavity 600, one end of the protective plate 7 abuts against the lever 500. The positioning mechanism cooperates with the positioning hole 603. Side grooves 602 are provided on both sides of the assembly cavity 600. Both sides of the protective plate 7 have protruding edges, which slide in cooperation with the side grooves 602.

[0027] The positioning mechanism includes two rectangular grooves 700. Movable grooves 701 communicating with the rectangular grooves 700 are respectively opened on both sides of the outer wall of the protective plate 7. A lever 8 is slidably fitted on the rectangular groove 700. A positioning rod 9 that passes through the movable groove 701 and cooperates with the positioning hole 603 is fixed at one end of the lever 8. A spring 10 is fixed on the side of the lever 8 away from the positioning rod 9. One end of the spring 10 is fixed to the inner wall of the rectangular groove 700.

[0028] When the protective plate 7 is installed, insert the protective plate 7 into the assembly cavity 600, so that the convex edge mates with the side groove 602, and then squeeze the positioning rod 9 to move it, while squeezing the spring 10. At this time, the positioning rod 9 retracts into the rectangular groove 700. After the protective plate 7 is completely installed on the assembly cavity 600, release the lever 8. Under the reset action of the spring 10, the positioning rod 9 automatically passes out of the movable groove 701 and inserts into the positioning hole 603, realizing the rapid positioning and fixing of the protective plate 7.

[0029] 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 quick disassembly type slewing bearing, comprising an outer support ring (1), an inner support ring (2) is rotatably arranged in the inner ring of the outer support ring (1), a fixed shell (4) with an inner cavity is arranged on the outer support ring (1), a sliding groove (400) communicating with the inner cavity is formed in the top of the fixed shell (4), a disassembly mechanism (5) is arranged in the inner cavity, the disassembly mechanism (5) comprises a lever (500) with one end penetrating out of the sliding groove (400), characterized in that, Also includes: U-shaped block (6), the U-shaped block (6) is set on the top of the fixed shell (4), the U-shaped block (6) has an assembly cavity (600) that connects to the sliding groove (400), and positioning holes (603) are provided on both sides of the inner wall of the U-shaped block (6). The protective plate (7) is provided with a positioning mechanism. When the protective plate (7) is fitted on the assembly cavity (600), one end of the protective plate (7) abuts against the lever (500). The positioning mechanism is fitted with the positioning hole (603).

2. The quick-release slewing bearing according to claim 1, characterized in that, The lever (500) is a "T" shaped rod. One end of the U-shaped block (6) has an opening (601) that connects to the assembly cavity (600). The opening (601) is in clearance fit with the lever (500).

3. The quick-release slewing bearing according to claim 1, characterized in that, The assembly cavity (600) has side grooves (602) on both sides, and the protective plate (7) has protruding edges on both sides, which slide in conjunction with the side grooves (602).

4. The quick-release slewing bearing according to claim 1, characterized in that, The positioning mechanism includes two rectangular grooves (700), and movable grooves (701) connecting the rectangular grooves (700) are respectively opened on both sides of the outer wall of the protective plate (7).

5. The quick-release slewing bearing according to claim 4, characterized in that, A lever (8) is slidably fitted on the rectangular groove (700). One end of the lever (8) is fixed with a positioning rod (9) that passes through the movable groove (701) and engages with the positioning hole (603). A spring (10) is fixed on the side of the lever (8) away from the positioning rod (9). One end of the spring (10) is fixed to the inner wall of the rectangular groove (700).

6. The quick-release slewing bearing according to claim 1, characterized in that, The outer support ring (1) has an installation groove (3), and the fixing shell (4) is fixed on the installation groove (3).

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