Energy-saving motor-driven slewing bearing

Abstract

The utility model belongs to the technical field of slewing bearings, and particularly relates to an energy-saving motor-driven slewing bearing which comprises an outer gear ring and an inner ring connected to the inner side of the outer gear ring, an isolation block is connected to an opening between the outer gear ring and the inner ring, and a rolling block is connected to one side of the isolation block. An oil filling hole is formed in the inner side of the inner ring, a sealing belt is installed at the joint of the outer gear ring and the inner ring, an oil nozzle is installed at an opening of the inner wall of the inner ring, oil filtering cotton is arranged at the tail end of the oil nozzle, a sealing gasket is installed at one end of the oil nozzle, and a light steel reinforcing plate is embedded in the outer gear ring. According to the slewing bearing, external impurities can be prevented from entering the slewing bearing, in addition, a gap between the oil nozzle and the oil filling hole can be filled through the sealing gasket, lubricating oil is prevented from flowing back, the motor driving effect is improved, and then the energy-saving effect in the rotating process of the slewing bearing is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of slewing bearings, and in particular relates to an energy-saving motor-driven slewing bearing. Background Art

[0002] The motor-driven slewing bearing is a large bearing that can withstand comprehensive loads. It is powered by a motor and realizes rotational motion through the slewing bearing. It can withstand large axial and radial loads and overturning moments at the same time, and is suitable for various heavy-load, high-speed, and high-precision application scenarios. The motor-driven slewing bearing is mainly composed of a motor, a slewing bearing, a transmission device, and other parts. Among them, the motor provides power, the slewing bearing bears the load and realizes rotational motion, and the transmission device transmits the power of the motor to the slewing bearing. The working principle of the motor-driven slewing bearing is to provide power through the motor, and transmit the power to the slewing bearing through the transmission device, thereby realizing rotational motion. Internally, it relies on the mutual friction between the ball and the steel ring to achieve the purpose of operation; while on the outside, the friction between the slewing bearing and other components starts the operation and rubs against each other, thereby driving the operation of the object;

[0003] Among them, the "anti-tooth breakage type slewing bearing" disclosed in the application number "CN201520300459.3" is also an increasingly mature technology. On the basis of the original slewing bearing, only the original tooth shape is slightly changed, there is no cost increase and it is easy to implement, especially in the slewing bearing for excavators, which greatly reduces the tooth breakage rate. However, the motor-driven slewing bearing still has the following defects: due to the restrictions on the use conditions of the motor-driven slewing bearing, it is basically used in an environment with a large load, so the friction between the outer ring and the inner ring will increase, and the internal lubricating oil will leak, which will affect the rotation between the motor-driven slewing bearings and increase the energy loss. Utility Model Content

[0004] The utility model aims to provide an energy-saving motor-driven slewing bearing, aiming to solve the problem in the prior art that the motor-driven slewing bearing is used under limited conditions and is basically used in an environment with a large load, thereby increasing the friction between the outer gear ring and the inner ring, causing the internal lubricating oil to leak, thereby affecting the rotation of the motor-driven slewing bearing and increasing the energy loss.

[0005] To achieve the above object, the utility model provides the following technical solution: an energy-saving motor-driven slewing bearing, comprising an outer gear ring and an inner ring connected to the inner side of the outer gear ring, an isolation block is connected to the opening between the outer gear ring and the inner ring, and a rolling block is connected to one side of the isolation block;

[0006] A sealing belt is installed at the connection between the outer gear ring and the inner ring, an oil nozzle is installed at the inner wall opening of the inner ring, an oil filter cotton is arranged at the tail end of the oil nozzle, a sealing gasket is installed at one end of the oil nozzle, and a light steel reinforcement plate is embedded in the interior of the outer gear ring.

[0007] As a preferred embodiment of the energy-saving motor-driven slewing bearing of the utility model, the sealing belt is made of rubber, and the cross-section of the sealing belt is triangular.

[0008] As a preferred embodiment of the energy-saving motor-driven slewing bearing of the utility model, the outer gear ring and the inner ring surface are both provided with mounting holes, and the inner wall of the mounting hole cooperates with the bolt thread.

[0009] As a preferred embodiment of the energy-saving motor-driven slewing bearing of the utility model, the oil filter cotton is made of polypropylene fiber, and the oil filter cotton is adhered to the inner wall of the inner ring inner wall opening.

[0010] As a preferred embodiment of the energy-saving motor-driven slewing bearing of the utility model, the sealing gasket is made of rubber material, and the size of the sealing gasket is matched with the size of the opening of the inner wall of the inner ring.

[0011] As a preferred embodiment of the energy-saving motor-driven slewing bearing of the utility model, the light steel reinforcement plate is made of steel, and the light steel reinforcement plate is circularly arranged and embedded in the inner part of the outer gear ring.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model arranges oil filter cotton at the oil filling hole on the inner side of the inner ring, which can prevent foreign matter from entering the interior of the slewing bearing. In addition, by using a sealing gasket, the gap between the oil nozzle and the oil filling hole can be filled to prevent the lubricating oil from flowing back, thereby improving the effect of motor driving, and thus achieving the effect of energy saving during the rotation of the slewing bearing. In addition, by embedding a light steel reinforcement plate inside the outer gear ring, the overall hardness of the outer gear ring can be ensured. When cracks appear on the outer gear ring, it can be ensured that the outer gear ring can still form a whole, thereby improving the service life of the slewing bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0015] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0017] Figure 3This is a schematic diagram of the oil nozzle installation structure of the utility model;

[0018] Figure 4 This is a schematic diagram of the sealing gasket installation structure of the utility model;

[0019] Figure 5 This is a schematic diagram of the oil nozzle structure of the utility model;

[0020] Figure 6 This is a schematic diagram of the installation structure of the light steel reinforcement plate of the utility model.

[0021] In the figure: 1. outer gear ring; 2. inner ring; 3. isolation block; 4. rolling block; 5. sealing belt; 6. mounting hole; 7. oil nozzle; 8. oil filter cotton; 9. sealing gasket; 10. light steel reinforcement plate. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-6 The utility model provides the following technical solutions: an energy-saving motor-driven slewing bearing, comprising an outer gear ring 1 and an inner ring 2 connected to the inner side of the outer gear ring 1, an isolation block 3 is connected to the opening between the outer gear ring 1 and the inner ring 2, and a rolling block 4 is connected to one side of the isolation block 3;

[0024] A sealing belt 5 is installed at the connection between the outer gear ring 1 and the inner ring 2, an oil nozzle 7 is installed at the inner wall opening of the inner ring 2, an oil filter cotton 8 is provided at the tail end of the oil nozzle 7, a sealing gasket 9 is installed at one end of the oil nozzle 7, and a light steel reinforcement plate 10 is embedded inside the outer gear ring 1.

[0025] Preferably, the sealing belt 5 is made of rubber, and the cross section of the sealing belt 5 is triangular.

[0026] Preferably: mounting holes 6 are provided on the surfaces of the outer gear ring 1 and the inner ring 2, and the inner walls of the mounting holes 6 are matched with the bolt threads.

[0027] When in use, the mounting hole 6 is used to tighten the bolts, so as to facilitate the stable installation of the slewing bearing and avoid shaking during use.

[0028] Preferably, the oil filter cotton 8 is made of polypropylene fiber, and the oil filter cotton 8 is adhered to the inner wall of the inner wall opening of the inner ring 2.

[0029] During specific use, the oil filter cotton 8 is used to facilitate filtering of impurities, thereby preventing the impurities from entering the interior of the slewing bearing, thereby ensuring the safety of use.

[0030] Preferably, the sealing gasket 9 is made of rubber, and the size of the sealing gasket 9 is matched with the size of the inner wall opening of the inner ring 2 .

[0031] During specific use, the use of the sealing gasket 9 facilitates the sealing of the oil filling hole on the inner wall of the inner ring 2, thereby preventing the lubricating oil from flowing back and improving the full utilization of the lubricating oil.

[0032] Preferably, the light steel reinforcement plate 10 is made of steel and is circularly arranged and embedded in the outer gear ring 1 .

[0033] During specific use, the provision of the light steel reinforcement plate 10 can ensure that the outer gear ring 1 can still form a whole, thereby increasing the service life of the slewing bearing.

[0034] The specific working principle and advantages of the utility model when used are as follows: by arranging oil filter cotton 8 at the oil filling hole on the inner side of the inner ring 2, foreign matter can be prevented from entering the interior of the slewing bearing, and then the oil nozzle 7 is installed inside the oil filling hole on the inner wall of the inner ring 2, and then by using a sealing gasket 9 on the surface of the oil nozzle 7, the gap between the oil nozzle 7 and the oil filling hole can be filled to prevent the lubricating oil from flowing back, and the lubricating oil can be effectively fully utilized to ensure the rolling stability of the isolation block 3 and the rolling block 4, thereby improving the motor drive effect, and thus achieving the energy-saving effect during the rotation of the slewing bearing. In addition, by embedding a light steel reinforcement plate 10 inside the outer gear ring 1, the overall hardness of the outer gear ring 1 can be ensured. When cracks appear in the outer gear ring 1, it can be ensured that the outer gear ring 1 can still form a whole, thereby improving the service life of the slewing bearing.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An energy-saving motor-driven slewing bearing, comprising an outer gear ring (1) and an inner ring (2) connected to the inner side of the outer gear ring (1), characterized in that: An isolation block (3) is connected to the opening between the outer gear ring (1) and the inner ring (2), and a rolling block (4) is connected to one side of the isolation block (3); A sealing belt (5) is installed at the connection between the outer gear ring (1) and the inner ring (2), an oil nozzle (7) is installed at the inner wall opening of the inner ring (2), an oil filter cotton (8) is arranged at the tail end of the oil nozzle (7), a sealing gasket (9) is installed at one end of the oil nozzle (7), and a light steel reinforcement plate (10) is embedded in the interior of the outer gear ring (1).

2. The energy-saving motor-driven slewing bearing according to claim 1, characterized in that: The sealing belt (5) is made of rubber, and the cross section of the sealing belt (5) is triangular.

3. The energy-saving motor-driven slewing bearing according to claim 1, characterized in that: The surfaces of the outer gear ring (1) and the inner ring (2) are both provided with mounting holes (6), and the inner walls of the mounting holes (6) are matched with the bolt threads.

4. The energy-saving motor-driven slewing bearing according to claim 1, characterized in that: The oil filter cotton (8) is made of polypropylene fiber and is adhered to the inner wall of the inner ring (2) at the inner wall opening.

5. The energy-saving motor-driven slewing bearing according to claim 1, characterized in that: The sealing gasket (9) is made of rubber, and the size of the sealing gasket (9) is compatible with the size of the inner wall opening of the inner ring (2).

6. The energy-saving motor-driven slewing bearing according to claim 1, characterized in that: The light steel reinforcement plate (10) is made of steel and is arranged in a circular shape and embedded in the interior of the outer gear ring (1).

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