A lightweight, high-load rotating seat ring for vehicles

Abstract

A lightweight, high-load-bearing slewing bearing for vehicles includes a slewing outer ring, a slewing inner ring, and spherical balls. The inner ring is located inside the outer ring. The spherical balls are installed in ball grooves between the outer and inner rings. A first sealing ring is provided at the upper connection between the outer and inner rings, and a second sealing ring is provided at the lower connection. Multiple ball mounting holes and oil injection threaded holes are radially arranged on the outer surface of the outer ring. These holes are interconnected with the ball grooves. A plug is installed in the ball mounting hole, and an oil cup is installed in the oil injection threaded hole. Multiple arc-shaped weight-reducing grooves are axially arranged on the upper and lower end faces of the outer circumference of the outer ring, and the same applies to the upper and lower end faces of the outer circumference of the inner ring. These grooves are located between the ball mounting holes. An isolation ring is provided between the outer and inner rings, with multiple isolation posts evenly arranged on the isolation ring. Each spherical ball is installed between these isolation posts.

Description

Technical Field

[0001] This utility model relates to the field of vehicle-mounted high-power microwave armored vehicle technology, specifically to a vehicle-mounted lightweight high-load rotary seat ring. Background Technology

[0002] In the field of vehicle-mounted high-power microwave applications, large-load, large-size rotary tables need to withstand loads of tens of tons and require 360-degree rotation. Currently, when known rotary tables are mounted on armored vehicle chassis, they require a bearing ring for support and rotational motion. The bearing ring consists of an inner ring, an outer ring, and rolling elements, and must withstand significant axial and radial loads and overturning moments. Its upper end face is bolted to the large-load rotary table, and its lower end face is bolted to the chassis of the armored vehicle. Bearing rings used on armored vehicles are generally selected according to a prescribed standard series. However, when the bearing ring bears a large load and needs to meet weight requirements and limited space design requirements, the standard series bearing rings cannot meet the requirements in terms of structural layout, lightweighting, and dimensional space design. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of existing technologies by providing a lightweight, high-load-bearing rotary bearing ring for vehicles. This rotary bearing ring solves the problems of structural layout, lightweight design, and dimensional space design deficiencies when bearing large loads and large-sized turntables.

[0004] The purpose of this utility model is achieved by the following solution: a lightweight, high-load-bearing rotary bearing for vehicles, comprising a rotary outer ring, a rotary inner ring, and spherical balls. The rotary inner ring is disposed on the inner side of the rotary outer ring. A ball groove is disposed in the middle section of the inner surface of the rotary outer ring, and a ball groove is disposed in the middle section of the outer surface of the rotary inner ring. The inner surface of the rotary inner ring is a straight tooth surface. Spherical balls are installed in the ball grooves of the rotary outer ring and the rotary inner ring. A first sealing ring is disposed at the upper connection between the rotary outer ring and the rotary inner ring, and a second sealing ring is disposed at the lower connection between the rotary outer ring and the inner ring. Multiple ball mounting holes and oil injection threaded holes are radially disposed on the outer surface of the rotary outer ring. The ball mounting holes, oil injection threaded holes, and ball grooves are interconnected. The ball bearing mounting holes are fitted with plugs, and oil cups are fitted with threaded oil filling holes. Multiple arc-shaped weight-reducing grooves are axially arranged on the upper and lower end faces of the outer circumference of the outer rotating ring, with the arc-shaped weight-reducing grooves on the outer rotating ring located outside the ball bearing grooves. Multiple arc-shaped weight-reducing grooves are axially arranged on the upper and lower end faces of the outer circumference of the inner rotating ring, with the arc-shaped weight-reducing grooves on the inner rotating ring located inside the ball bearing grooves. The arc-shaped weight-reducing grooves on the inner rotating ring correspond to those on the outer rotating ring. The arc-shaped weight-reducing grooves are positioned between each ball bearing mounting hole. An isolation ring is installed between the outer rotating ring and the inner rotating ring, with multiple isolation posts evenly arranged on the isolation ring. Each spherical ball bearing is installed between the isolation posts. The inner rotating ring is fixedly connected to the vehicle body, and the outer rotating ring is fixedly connected to the turntable.

[0005] The upper surface of the outer rotating ring is higher than the upper surface of the inner rotating ring, and the lower surface of the outer rotating ring is higher than the upper surface of the inner rotating ring.

[0006] A stepped groove is provided at the upper end of the outer side surface of the inner rotating ring, and a concave groove is provided at the lower end of the outer side surface of the inner rotating ring. A stepped groove is provided at the lower end of the outer side surface of the outer rotating ring, and a concave groove is provided at the upper end of the outer side surface of the outer rotating ring. A first sealing ring is installed in the stepped groove of the inner rotating ring and the concave groove of the outer rotating ring, and a second sealing ring is installed in the concave groove of the inner rotating ring and the stepped groove of the outer rotating ring.

[0007] The stopper and the outer rotating ring are fixed together by a tapered pin.

[0008] Countersunk bolt holes are axially arranged between the arc-shaped weight-reducing grooves on the outer rotating ring from bottom to top, and the outer rotating ring is connected and fixed to the turntable by bolts.

[0009] Countersunk bolt holes are axially arranged between the arc-shaped weight-reducing grooves on the inner rotating ring from top to bottom, and the inner rotating ring is connected and fixed to the vehicle body by bolts.

[0010] The outer ring of the rotary table is provided with three ball bearing mounting holes, which are spaced 120° apart, and the arc-shaped weight reduction grooves are evenly distributed between the ball bearing mounting holes.

[0011] The cross-section of the ball groove is a right triangle.

[0012] The lower end face of the inner ring of the rotary ring is an annular boss surface.

[0013] The advantages of this utility model are: 1. This slewing bearing adopts a four-point contact ball slewing support, which can withstand comprehensive large loads and can simultaneously withstand large axial and radial loads and overturning moments.

[0014] 2. This rotary seat has high-precision rotary motion, which can provide small axial and radial runout for the upper and lower connecting bodies.

[0015] 3. Compared to existing technologies, this rotary seat ring is lighter. The inner and outer rings of the seat ring both feature a weight-reducing arc groove design on the top and bottom, minimizing the weight of the rotary seat ring while ensuring sufficient structural strength and performance when bearing heavy loads.

[0016] 4. This type of rotary seat structure is simple and compact, with high space utilization, convenient processing, assembly and maintenance, and is suitable for the rotation of most large-size, heavy-load vehicle-mounted turntables. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 for Figure 1 Enlarged view of point C in the middle;

[0019] Figure 3 This is a sectional view along line AA;

[0020] Figure 4 for Figure 3 Enlarged view of point D;

[0021] Figure 5 This is a sectional view of BB.

[0022] Figure 6 for Figure 5 Enlarged diagram of point E in the middle. Detailed Implementation

[0023] like Figures 1 to 6As shown, a lightweight, high-load-bearing swivel bearing for vehicles includes a swivel outer ring 1, a swivel inner ring 2, and spherical balls 3. The swivel inner ring 2 is disposed inside the swivel outer ring 1. The upper end face of the swivel outer ring 1 is higher than the upper end face of the swivel inner ring 2, and the lower end face of the swivel outer ring 1 is higher than the upper end face of the swivel inner ring 2. The lower end face of the swivel inner ring 2 is an annular boss surface. A ball groove 12 is disposed in the middle section of the inner side of the swivel outer ring 1, and a ball groove 12 is disposed in the middle section of the outer side of the swivel inner ring 2. The cross-section of the ball groove 12 is a right-angled triangle. The inner surface of the inner ring 2 is a straight tooth surface. Spherical balls 3 are installed in the ball grooves 12 of the outer ring 1 and the inner ring 2. A first sealing ring 9 is provided at the upper connection between the outer ring 1 and the inner ring 2, and a second sealing ring 10 is provided at the lower connection between the outer ring 1 and the inner ring 2. A stepped groove 13 is provided at the upper part of the outer surface of the inner ring 2, and a concave groove 14 is provided at the lower part of the outer surface of the inner ring 2. A stepped groove is provided at the lower part of the outer surface of the outer ring 1. A groove 13 is provided on the upper outer surface of the outer rotating ring 1, and a concave groove 14 is provided on the upper surface of the outer rotating ring 1. A first sealing ring 9 is installed in the stepped groove 13 of the inner rotating ring 2 and the concave groove 14 of the outer rotating ring 1. A second sealing ring 10 is installed in the concave groove 14 of the inner rotating ring 2 and the stepped groove 13 of the outer rotating ring 1. The first sealing ring 9 and the second sealing ring 10 prevent dust from entering the ball groove 12 from both the upper and lower positions, thereby improving the service life of the rotating ring and ensuring the normal rotation of the rotating ring. A plurality of ball mounting holes 1-1 and oil injection threaded holes 1-2 are radially provided on the outer surface of the outer rotating ring 1. The ball mounting holes 1-1, the oil injection threaded holes 1-2 and the ball groove 12 are interconnected. A plug 6 is installed in the ball mounting hole 1-1. The plug 6 is connected and fixed to the outer rotating ring 1 by a tapered pin 8, so that the plug 6 and the outer rotating ring 1 move as a whole. Oil cups 7 are installed in the oil injection threaded holes 1-2. Multiple arc-shaped weight-reducing grooves 5 are axially arranged on the upper and lower end faces of the outer circumference of the outer ring 1. The arc-shaped weight-reducing grooves 5 on the outer ring 1 are located outside the ball groove. Multiple arc-shaped weight-reducing grooves 5 are axially arranged on the upper and lower end faces of the outer circumference of the inner ring 2. The arc-shaped weight-reducing grooves 5 on the inner ring 2 are located inside the ball groove. The arc-shaped weight-reducing grooves 5 on the inner ring 2 correspond to the arc-shaped weight-reducing grooves 5 on the outer ring 1. The arc-shaped weight-reducing grooves 5 are arranged between each ball mounting hole 1-1. The outer ring 1 has three ball mounting holes 1-1, and the ball mounting holes 1-1 are spaced 120° apart. The arc-shaped weight-reducing grooves 5 are evenly arranged between the ball mounting holes 1-1. The arrangement of the arc-shaped weight-reducing grooves 5 reduces the weight of the entire rotary seat ring, ensuring that the rotary seat ring has sufficient structural strength and performance when bearing a large load turntable. An isolation ring 4 is provided between the outer ring 1 and the inner ring 2. Multiple isolation posts 4-1 are evenly arranged on the isolation ring 4. Each spherical ball 3 is installed between the isolation posts 4-1, which improves the smoothness of the rotation of the spherical seat ring and makes the ball groove 12 more uniform, thereby increasing the load-bearing capacity of the seat ring.Countersunk bolt holes 11 are axially arranged between the arc-shaped weight-reducing grooves 5 on the outer rotating ring 1 from bottom to top, and the outer rotating ring 1 is connected and fixed to the turntable by bolts. Countersunk bolt holes 11 are axially arranged between the arc-shaped weight-reducing grooves 5 on the inner rotating ring 2 from top to bottom, and the inner rotating ring 2 is connected and fixed to the vehicle body by bolts.

[0024] The rotary bearing ring of this utility model has two installation methods, corresponding to two rotation methods:

[0025] The first type is as follows Figure 3 In the installation method shown, the upper surface of the outer rotating ring 1 is higher than the upper surface of the inner rotating ring 2, and the annular boss surface of the inner rotating ring 2 is lower than the lower surface of the outer rotating ring 1. The corresponding rotation method of this installation method is that the outer rotating ring 1 rotates, and the bolt is connected to the turntable from the lower surface of the outer rotating ring 1 through the countersunk bolt hole 11; the inner rotating ring 2 is fixed to the vehicle body, and the bolt is connected to the vehicle body from the upper surface of the inner rotating ring 2 through the countersunk bolt hole 11.

[0026] The second installation method, not shown in the diagram, is... Figure 3 The installation method shown is obtained by rotating it 180° up and down. Its structure is such that the annular boss surface of the inner rotating ring 2 is higher than the upper surface of the outer rotating ring 1, and the lower surface of the outer rotating ring 1 is lower than the lower surface of the inner rotating ring 2. The corresponding rotation method of this installation method is that the outer rotating ring 1 is fixed to the vehicle body, and the bolt is connected to the vehicle body from the upper surface of the outer rotating ring 1 through the countersunk bolt hole 11; the inner rotating ring 2 rotates, and the bolt is connected to the turntable from the lower surface of the inner rotating ring 2 through the countersunk bolt hole 11.

[0027] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications made to the present utility model by those skilled in the art without departing from the spirit of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A lightweight, high-load rotary bearing for vehicle use, comprising a rotary outer ring (1), a rotary inner ring (2), and spherical balls (3), wherein the rotary inner ring (2) is disposed on the inner side of the rotary outer ring (1), a ball groove (12) is disposed in the middle section of the inner side of the rotary outer ring (1), a ball groove (12) is disposed in the middle section of the outer side of the rotary inner ring (2), the inner side of the rotary inner ring (2) is a straight tooth surface, and the spherical balls (3) are installed in the ball grooves (12) of the rotary outer ring (1) and the rotary inner ring (2), wherein a first sealing ring (9) is disposed at the upper connection between the rotary outer ring (1) and the rotary inner ring (2), and a second sealing ring (10) is disposed at the lower connection between the rotary outer ring (1) and the rotary inner ring (2), characterized in that: The outer surface of the rotating outer ring (1) is radially provided with multiple ball mounting holes (1-1) and oil injection threaded holes (1-2). The ball mounting holes (1-1), oil injection threaded holes (1-2) and ball grooves (12) are interconnected. A plug (6) is installed in the ball mounting hole (1-1), and an oil cup (7) is installed in the oil injection threaded hole (1-2). Multiple arc-shaped weight-reducing grooves (5) are axially provided on the upper and lower end faces of the outer circumference of the rotating outer ring (1). The arc-shaped weight-reducing grooves (5) on the rotating outer ring (1) are located outside the ball grooves. Multiple arc-shaped weight-reducing grooves (5) are axially provided on the upper and lower end faces of the outer circumference of the rotating inner ring (2). 5) The arc-shaped weight reduction groove (5) on the inner ring (2) is set inside the ball groove. The arc-shaped weight reduction groove (5) on the inner ring (2) corresponds to the arc-shaped weight reduction groove (5) on the outer ring (1). The arc-shaped weight reduction groove (5) is set between each ball mounting hole (1-1). An isolation ring (4) is set between the outer ring (1) and the inner ring (2). Multiple isolation posts (4-1) are evenly set on the isolation ring (4). Each spherical ball (3) is installed between the isolation posts (4-1). The inner ring (2) is connected and fixed to the vehicle body. The outer ring (1) is connected and fixed to the turntable.

2. The in-vehicle lightweight heavy load rotary race according to claim 1, characterized by: The upper end face of the outer rotating ring (1) is higher than the upper end face of the inner rotating ring (2), and the lower end face of the outer rotating ring (1) is higher than the upper end face of the inner rotating ring (2).

3. The in-vehicle lightweight heavy load rotary race according to claim 1, characterized by: The upper end of the outer side surface of the inner rotating ring (2) is provided with a stepped groove (13), the lower end of the outer side surface of the inner rotating ring (2) is provided with a concave groove (14), the lower end of the outer side surface of the outer rotating ring (1) is provided with a stepped groove (13), the upper end of the outer side surface of the outer rotating ring (1) is provided with a concave groove (14), the first sealing ring (9) is installed in the stepped groove (13) of the inner rotating ring (2) and the concave groove (14) of the outer rotating ring (1), and the second sealing ring (10) is installed in the concave groove (14) of the inner rotating ring (2) and the stepped groove (13) of the outer rotating ring (1).

4. The in-vehicle lightweight heavy load rotary race according to claim 1, characterized by: The plug (6) is connected and fixed to the outer ring (1) by a tapered pin (8).

5. The in-vehicle lightweight heavy load rotary race according to claim 1, characterized by: Countersunk bolt holes (11) are axially arranged between the arc-shaped weight-reducing grooves (5) on the outer rotating ring (1) from bottom to top. The outer rotating ring (1) is connected and fixed to the turntable by bolts.

6. The in-vehicle lightweight heavy load rotary race according to claim 1, characterized by: Countersunk bolt holes (11) are axially arranged between the arc-shaped weight-reducing grooves (5) on the inner rotating ring (2) from top to bottom. The inner rotating ring (2) is connected and fixed to the vehicle body by bolts.

7. The in-vehicle lightweight heavy load rotary race according to claim 1, characterized by: The outer ring (1) of the rotary ring is provided with three ball mounting holes (1-1), and the ball mounting holes (1-1) are spaced 120° apart. The arc-shaped weight reduction groove (5) is evenly arranged between the ball mounting holes (1-1).

8. The in-vehicle lightweight heavy load rotary race according to claim 1, characterized by: The cross-section of the ball groove (12) is a right triangle.

9. The vehicle-mounted lightweight high-load swivel bearing according to claim 1, characterized in that: The lower end face of the inner rotating ring (2) is an annular boss surface.

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