Single-row crossed roller type slewing bearing

Abstract

The utility model discloses a single-row crossed roller type slewing bearing, and belongs to the technical field of slewing bearings. The bearing comprises an outer ring, an inner ring, a protection mechanism, a sealing plate and a fixing mechanism, an oil injection hole is formed in one side of the outer ring, the protection mechanism comprises a first stepped column, the first stepped column is arranged on one side of the oil injection hole, a first rectangular plate is arranged on the first stepped column in a matched mode, a round baffle is arranged on one side of the first rectangular plate, and the oil injection hole is covered with the round baffle. When the oil filling hole is not used, the first rectangular plate is rotated to drive the circular baffle to rotate to cover the oil filling hole, meanwhile, the second rectangular plate is driven to rotate to enable the first through hole to be located in the threaded hole, then locking is conducted through the action of the first bolt, and therefore the circular baffle protects the oil filling hole; dirt is prevented from entering the oil injection hole, and the problem that the lubricating effect is affected due to blockage or damage caused by the fact that dirt enters the oil injection hole easily due to the influence of the external environment is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to slewing ring technical field, concretely is single row cross roller type slewing ring. BACKGROUND

[0002] Single row cross roller type slewing ring is a kind of core components widely used in engineering machinery, wind power generation, medical equipment and other fields, and its main function is to bear the composite load of axial, radial and overturning moment, and realize the relative rotation of component.The traditional slewing ring is usually composed of outer ring, inner ring, roller and sealing device, and its structural design directly affects the carrying capacity, service life and running stability of equipment.

[0003] But the oil injection hole design of traditional slewing ring is relatively simple, lacks effective protection mechanism, is easy to cause dirt to enter oil injection hole and cause blockage or damage due to the influence of external environment, affects lubrication effect. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing single row cross roller type slewing ring, when not using oil injection hole, by rotating first rectangular plate and driving circular baffle to rotate, it is covered on oil injection hole, simultaneously, drive second rectangular plate to rotate, so that first through -hole is located on threaded hole, then by the action of first bolt locking, so that circular baffle carries out protection to oil injection hole, prevents dirt from entering oil injection hole, solves the problem that dirt is easy to enter oil injection hole and cause blockage or damage due to the influence of external environment, affects lubrication effect.

[0005] The utility model is realized by the following technical schemes:

[0006] The utility model is single row cross roller type slewing ring, including outer ring, inner ring, protection mechanism, sealing plate and fixed mechanism, the side of outer ring is provided with oil injection hole, protection mechanism includes first ladder column, first ladder column is arranged at the side of oil injection hole, is matched with first rectangular plate on first ladder column, the side of first rectangular plate is equipped with circular baffle, circular baffle is covered on oil injection hole, the side of circular baffle is equipped with second rectangular plate, first through -hole is set up on second rectangular plate, is set up threaded hole on outer ring, first through -hole and threaded hole correspond, first through -hole and threaded hole are equipped with first bolt.

[0007] Further, the side of sealing plate is equipped with first mounting ring, and the first mounting groove is formed in the outer ring.

[0008] Further, the side of sealing plate is equipped with second mounting ring, and the second mounting groove is formed in the inner ring.

[0009] Further, the fixing mechanism comprises four first protrusions and four second protrusions, the second protrusions are located at the inner side of the first protrusions, and the first protrusions and the second protrusions are arranged on the outer ring.

[0010] Further, one end of the first protrusion is provided with a second stepped column, a pressing plate is matched with the second stepped column, a second through hole is formed in the pressing plate, a threaded groove is formed in the second protrusion, and a second bolt is arranged in the second through hole and the threaded groove.

[0011] Further, one end of the pressing plate is arranged at the outer side of the sealing plate.

[0012] The utility model has the advantages of the following beneficial effects:

[0013] When the oil injection hole is not used, the first rectangular plate is rotated to drive the circular baffle to rotate and cover the oil injection hole, the second rectangular plate is rotated, the first through hole is located on the threaded hole, the first bolt is used for locking, the circular baffle protects the oil injection hole, and dirt is prevented from entering the oil injection hole.

[0014] Of course, any product implementing the utility model does not necessarily need to achieve all the advantages mentioned above. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a schematic view of the slewing bearing structure;

[0016] Figure 2 It is a schematic view of the protection mechanism structure;

[0017] Figure 3 It is a schematic view of the slewing bearing and the sealing plate structure;

[0018] Figure 4 It is a schematic view of the fixing mechanism structure.

[0019] In the drawing: 1, outer ring; 101, oil injection hole; 102, threaded hole; 103, first mounting groove; 2, inner ring; 201, second mounting groove; 3, protection mechanism; 301, first stepped column; 302, first rectangular plate; 303, circular baffle; 304, second rectangular plate; 305, first through hole; 306, first bolt; 4, sealing plate; 401, first mounting ring; 402, second mounting ring; 5, fixing mechanism; 501, first protrusion; 502, second stepped column; 503, second protrusion; 504, pressing plate; 505, second through hole; 506, second bolt. DETAILED DESCRIPTION

[0020] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0021] Please refer to Figures 1-4 The present application provides a technical solution: a single-row cross-roller type slewing bearing, comprising an outer ring 1, an inner ring 2, a protection mechanism 3, a sealing plate 4 and a fixing mechanism 5. The outer ring 1 is provided with an oil injection hole 101 on one side. The protection mechanism 3 comprises a first stepped column 301, which is arranged on one side of the oil injection hole 101. A first rectangular plate 302 is matched with the first stepped column 301. The first stepped column 301 and the first rectangular plate 302 provide structural support and enhance the stability of the protection mechanism 3. A circular baffle 303 is arranged on one side of the first rectangular plate 302 and covers the oil injection hole 101. The circular baffle 303 covers the oil injection hole 101, effectively preventing damage to the oil injection hole 101 by external factors. A second rectangular plate 304 is arranged on one side of the circular baffle 303. A first through hole 305 is formed in the second rectangular plate 304. Threaded holes 102 are formed in the outer ring 1. The first through hole 305 corresponds to the threaded hole 102. A first bolt 306 is arranged in the first through hole 305 and the threaded hole 102. The second rectangular plate 304 and the first bolt 306 are connected by threads, ensuring the reliable fixation of the protection mechanism 3 and facilitating disassembly and maintenance.

[0022] When the oil injection hole 101 is not in use, the first rectangular plate 302 is rotated to drive the circular baffle 303 to rotate and cover the oil injection hole 101. At the same time, the second rectangular plate 304 is rotated so that the first through hole 305 is located on the threaded hole 102. Then, the first bolt 306 is locked to protect the oil injection hole 101 by the circular baffle 303, preventing dirt from entering the oil injection hole 101. This solves the problem of blockage or damage of the oil injection hole 101 caused by dirt entering the oil injection hole 101 due to external environmental factors, affecting the lubrication effect.

[0023] The outer ring 1 of one side of the sealing plate 4 is provided with a first mounting ring 401, the outer ring 1 is provided with a first mounting groove 103, the first mounting ring 401 is arranged in the first mounting groove 103, the inner ring 2 of one side of the sealing plate 4 is provided with a second mounting ring 402, the inner ring 2 is provided with a second mounting groove 201, the second mounting ring 402 is arranged in the second mounting groove 201, the sealing plate 4 is used for preventing lubricating grease leakage and external contaminants from entering, ensuring that the lubricating environment between the roller and the inner and outer rings 1 is clean, the first mounting ring 401 cooperates with the first mounting groove 103, the second mounting ring 402 cooperates with the second mounting groove 201, a double sealing structure is formed, and the sealing effect is significantly improved.

[0024] The fixing mechanism 5 comprises first protrusions 501 and second protrusions 503, four first protrusions 501 and second protrusions 503 are arranged on the outer ring 1, the first protrusions 501 and the second protrusions 503 provide multi-point support and enhance the stability of the fixing mechanism 5, one end of the first protrusion 501 is provided with a second stepped column 502, the second stepped column 502 is matched with a pressing plate 504, one end of the pressing plate 504 is arranged on the outer side of the sealing plate 4, one end of the pressing plate 504 is arranged on the outer side of the sealing plate 4, and the pressing plate 504 plays a limiting and fixing role on the sealing plate 4, the pressing plate 504 is provided with a second through hole 505, the second protrusion 503 is provided with a threaded groove, the second through hole 505 and the threaded groove are provided with a second bolt 506, the second stepped column 502 and the pressing plate 504 are connected through the bolt, the reliability of the fixing mechanism 5 is ensured, and the risk of loosening is reduced.

[0025] The preferred embodiments disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details and limit the utility model to the specific embodiments. Apparently, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the utility model, so that the person skilled in the art can well understand and utilize the utility model. The utility model is limited by the claims and the whole scope and equivalents.

Claims

1. A single-row crossed roller slewing bearing, comprising an outer ring (1), an inner ring (2), a protective mechanism (3), a sealing plate (4), and a fixing mechanism (5), characterized in that: An oil injection hole (101) is provided on one side of the outer ring (1). The protective mechanism (3) includes a first stepped column (301), which is disposed on one side of the oil injection hole (101). A first rectangular plate (302) is fitted on the first stepped column (301), and a circular baffle (303) is provided on one side of the first rectangular plate (302). The circular baffle (303) covers the oil injection hole (101). A second rectangular plate (304) is provided on one side of the circular baffle (303). A first through hole (305) is provided on the second rectangular plate (304). A threaded hole (102) is provided on the outer ring (1). The first through hole (305) corresponds to the threaded hole (102). A first bolt (306) is provided in the first through hole (305) and the threaded hole (102).

2. The single-row crossed roller slewing bearing according to claim 1, characterized in that: The sealing plate (4) has a first mounting ring (401) on one side of its outer ring, and a first mounting groove (103) is provided on the outer ring (1), with the first mounting ring (401) disposed in the first mounting groove (103).

3. The single-row crossed roller slewing bearing according to claim 2, characterized in that: The sealing plate (4) has a second mounting ring (402) on one side of its inner ring, and a second mounting groove (201) is provided on the inner ring (2), with the second mounting ring (402) disposed in the second mounting groove (201).

4. The single-row crossed roller slewing bearing according to claim 3, characterized in that: The fixing mechanism (5) includes a first protrusion (501) and a second protrusion (503). There are four of the first protrusion (501) and the second protrusion (503). The second protrusion (503) is located inside the first protrusion (501). The first protrusion (501) and the second protrusion (503) are arranged on the outer ring (1).

5. The single-row crossed roller slewing bearing according to claim 4, characterized in that: One end of the first protrusion (501) is provided with a second stepped post (502), and a pressure plate (504) is fitted on the second stepped post (502). A second through hole (505) is opened on the pressure plate (504), and a threaded groove is opened on the second protrusion (503). A second bolt (506) is provided in the second through hole (505) and the threaded groove.

6. The single-row crossed roller slewing bearing according to claim 5, characterized in that: One end of the pressure plate (504) is located on the outside of the sealing plate (4).

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