Vertical motor bearing oiling component

Abstract

The utility model relates to a vertical motor bearing oiling component, which comprises a bearing inner cover, a flange end cover, a bearing, a shaft body and a bearing outer cover, the bearing inner cover, the flange end cover and the bearing outer cover are fixedly arranged from top to bottom to form a whole, namely the oiling component, and the oiling component is provided with an inner cavity for accommodating the bearing and the shaft body. The oil inlet pipe and the oil outlet pipe are communicated with an inner cavity of the oiling component. According to the technical scheme, the structure is reasonable, the power density of the motor can be improved as much as possible under the condition that the installation space of the motor is limited, and the bearing temperature rise during motor operation is controlled, so that the motor operates stably and reliably, and the probability of burnout faults of the motor is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, in particular to a bearing oiling structure of a vertical motor. Background Art

[0002] The cement processing and manufacturing industry uses direct-drive motors to drive cooling fans. This type of motor is installed vertically and has limited installation height space, so the motor is required to be small in size and have high output power. However, the equipment operates in a harsh environment with high humidity and high protection requirements, and it is also required to be able to achieve a non-stop refueling structure.

[0003] Therefore, the power density of the motor must be high. Such a structure will lead to poor heat dissipation of the motor and increased bearing temperature, which is prone to equipment failures such as bearing oil shortage and burning, and shaft seizure. Therefore, the above problems bring great troubles to the reliable operation of the equipment. At present, the conventional technology of motor bearing refueling adopts the bearing cover refueling method, but this method requires a large axial dimension space of the motor, which is difficult to implement for compact vertical motors. Summary of the invention

[0004] In order to solve the above technical problems, the purpose of the utility model is to provide a vertical motor bearing refueling component, including a bearing inner cover, a flange end cover, a bearing, a shaft body and a bearing outer cover. The bearing inner cover, the flange end cover and the bearing outer cover are fixedly arranged from top to bottom to form a whole, namely, a refueling component. The refueling component has an inner cavity for accommodating the bearing and the shaft body, and also has an oil inlet pipe and an oil outlet pipe connected to the inner cavity of the refueling component.

[0005] Preferably, the flange end cover comprises a bearing seat, an end cover circular plate and an end cover flange.

[0006] Preferably, the bearing inner cover and the bearing outer cover are respectively fixedly arranged at the upper and lower ends of the bearing seat of the flange end cover, and the shaft body of the shaft body can pass through the bearing inner cover, the bearing seat and the bearing outer cover from top to bottom, and the upper and lower ends of the shaft body expose the bearing inner cover and the bearing outer cover respectively, and the bearing is arranged on the shaft body through a shaft retaining ring.

[0007] Preferably, at least one oil inlet groove is uniformly opened along the circumferential direction on the end surface of the bearing inner cover facing the bearing seat, and a bearing inner cover oil groove connected to the oil inlet groove is opened on the end surface of the bearing inner cover facing the bearing seat, the oil inlet groove, the bearing inner cover oil groove and the upper end of the bearing constitute an upper oil chamber, an oil inlet channel with one end connected to the upper oil chamber is opened on the bearing seat, and the other end of the oil inlet channel is connected to the oil inlet pipe, at least one oil outlet groove is uniformly opened along the circumferential direction on the end surface of the bearing outer cover facing the bearing seat, and a bearing outer cover oil groove connected to the oil outlet groove is opened on the end surface of the bearing outer cover facing the bearing seat, a skeleton oil seal is fixedly arranged between the shaft body and the bearing outer cover, the oil outlet groove, the bearing outer cover oil groove, the skeleton oil seal and the lower end of the bearing constitute a lower oil chamber, an oil outlet channel with one end connected to the lower oil chamber is opened on the bearing seat, and the other end of the oil outlet channel is connected to the oil outlet pipe.

[0008] Preferably, the bearing inner cover and the bearing outer cover are fixed at the upper and lower ends of the bearing seat by screws respectively.

[0009] Preferably, threaded holes are formed at the oil inlet channel and the oil outlet channel of the bearing seat, and the oil inlet pipe and the oil outlet pipe are fixedly arranged on the bearing seat by threaded fitting and are respectively connected to the oil inlet channel and the oil outlet channel.

[0010] Preferably, the outer periphery of the bearing seat is fixedly connected to the end cover circular plate via reinforcing ribs, and the end cover flange is fixedly connected to the bearing seat and the end cover circular plate respectively via supporting ribs.

[0011] By means of the above solution, the utility model has at least the following advantages:

[0012] The technical solution of the present application can increase the power density of the motor as much as possible when the motor installation space is limited, and control the bearing temperature rise when the motor is running, so that the motor can run stably and reliably, thereby reducing the probability of motor burnout failure.

[0013] Furthermore, the technical solution of the present application can also take into account that the bearings can be lubricated without stopping the motor, thereby achieving the purpose of cooling and lubricating the bearings.

[0014] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the utility model in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the drawings required for use in the embodiment will be briefly introduced below. It should be understood that the following drawings only show a certain embodiment of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a three-dimensional structural schematic diagram of a vertical motor bearing oiling component of the present application;

[0017] Figure 2 It is a cross-sectional structural schematic diagram of a vertical motor bearing oiling component of the present application;

[0018] Figure 3 It is a schematic diagram of the structure of the inner cover of the bearing of the present application;

[0019] Figure 4 It is a schematic diagram of the structural relationship between the oil groove of the outer cover of the bearing and the skeleton oil seal of the present application;

[0020] Figure 5 It is a structural schematic diagram of the skeleton oil seal of the present application.

[0021] In the figure: 1 bearing inner cover, 2 flange end cover, 3 bearing, 4 shaft body, 5 bearing outer cover, 6 oil inlet pipe, 7 oil outlet pipe, 8 shaft retaining ring, 9 oil inlet groove, 10 bearing inner cover oil groove, 11 upper oil cavity, 12 oil inlet channel, 13 oil outlet groove, 14 bearing outer cover oil groove, 15 skeleton oil seal, 16 lower oil cavity, 17 oil outlet channel, 18 reinforcing ribs, 19 end cover circular plate, 20 end cover flange, 21 supporting ribs, 22 bearing seat. DETAILED DESCRIPTION

[0022] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0023] See also Figure 1 to Figure 5 A vertical motor bearing refueling component described in a preferred embodiment of the utility model includes a bearing inner cover 1, a flange end cover 2, a bearing 3, a shaft body 4 and a bearing outer cover 5. The bearing inner cover 1, the flange end cover 2 and the bearing outer cover 5 are fixedly arranged from top to bottom to form a whole, namely, a refueling component. The refueling component has an inner cavity for accommodating the bearing 3 and the shaft body 4, and also has an oil inlet pipe 6 and an oil outlet pipe 7 connected to the inner cavity of the refueling component.

[0024] Preferably, the flange end cover 2 includes a bearing seat 22 , an end cover circular plate 19 and an end cover flange 20 .

[0025] Preferably, the bearing inner cover 1 and the bearing outer cover 5 are respectively fixedly arranged at the upper and lower ends of the bearing seat 22 of the flange end cover 2, and the shaft body 4 can pass through the bearing inner cover 1, the bearing seat 22 and the bearing outer cover 5 from top to bottom, and the upper and lower ends of the shaft body 4 expose the bearing inner cover 1 and the bearing outer cover 5, respectively, and the bearing 3 is arranged on the shaft body 4 through a shaft retaining ring 8.

[0026] Preferably, at least one oil inlet groove 9 is uniformly opened along the circumferential direction on the end surface of the bearing inner cover 1 facing the bearing seat 22, and a bearing inner cover oil groove 10 connected to the oil inlet groove 9 is opened on the end surface of the bearing inner cover 1 facing the bearing seat 22, and the oil inlet groove 9, the bearing inner cover oil groove 10 and the upper end of the bearing 3 form an upper oil cavity 11 (the bearing inner cover 1 can cooperate with the shaft body 4 with a small gap to achieve oil sealing), and the bearing seat 22 is provided with an oil inlet channel 12 with one end connected to the upper oil cavity 11, and the other end of the oil inlet channel 12 is connected to the oil inlet pipe 6, and the end surface of the bearing outer cover 5 facing the bearing seat 22 At least one oil outlet groove 13 is uniformly opened along the circumferential direction, and a bearing outer cover oil groove 14 connected to the oil outlet groove 13 is opened on the end surface of the bearing outer cover 5 facing the bearing seat 22. A skeleton oil seal 15 is fixedly arranged between the shaft body 4 and the bearing outer cover 5. The oil outlet groove 13, the bearing outer cover oil groove 14, the skeleton oil seal 15 and the lower end of the bearing 3 constitute a lower oil chamber 16 (the skeleton oil seal 15 can cooperate with the shaft body 4 with a small gap to achieve oil sealing). The bearing seat 22 is opened with an oil outlet channel 17 with one end connected to the lower oil chamber 16, and the other end of the oil outlet channel 17 is connected to the oil outlet pipe 7.

[0027] Preferably, the bearing inner cover 1 and the bearing outer cover 5 are fixed at the upper and lower ends of the bearing seat 22 by screws respectively.

[0028] Preferably, the bearing seat 22 has threaded holes at the oil inlet channel 12 and the oil outlet channel 17, and the oil inlet pipe 6 and the oil outlet pipe 7 are fixedly arranged on the bearing seat 22 by threaded fitting and are connected to the oil inlet channel 12 and the oil outlet channel 17 respectively.

[0029] Preferably, the outer periphery of the bearing seat 22 is fixedly connected to the end cover circular plate 19 via reinforcing ribs 18, and the end cover flange 20 is fixedly connected to the bearing seat 22 and the end cover circular plate 19 respectively via supporting ribs 21.

[0030] In actual manufacturing, the bearing seat 22, the end cover circular plate 19 and the end cover flange 20 are welded and fixed to form a whole, that is, the flange end cover 2

[0031] During assembly, the bearing inner cover 1 can be firstly sleeved on the shaft body 4, and then the bearing 3 can be set on the shaft body 4 through the shaft retaining ring 8. At this time, the bearing inner cover 1 and the bearing outer cover 5 can be initially set at the upper and lower ends of the flange end cover 2, and the three can be fixedly connected by screws. When refueling, clean grease is injected from the oil nozzle on the oil inlet pipe 6, and reaches the upper oil chamber 11 through the oil inlet channel 12 and the oil inlet groove 9. During the operation of the motor, the grease can flow into the lower oil chamber 16 from the gap between the bearing balls to lubricate the bearing 3. When changing the oil, open the screw plug of the oil outlet pipe 7, and the waste grease can be squeezed from the bearing outer cover 5 into the oil outlet channel 17 and discharged from the oil outlet pipe 7. That is, the lubrication path of the grease is the oil inlet pipe 6, the oil inlet channel 12, the oil inlet groove 9, the upper oil chamber 11, the bearing 3, the lower oil chamber 16, the oil outlet groove 13, the oil outlet channel 17, and the oil outlet pipe 7.

[0032] In summary, the technical solution of this application has the following advantages:

[0033] (1) Refueling and oil changing can be achieved without stopping the machine, which can effectively reduce the temperature of the bearing 3 and increase the bearing grease refueling cycle.

[0034] (2) The oil inlet and outlet ports are both designed on the flange end cover 2. This structure can shorten the overall axial dimension and make the motor design more compact.

[0035] (3) It saves the oiling space of the bearing outer cover 5, further reduces the space for motor installation and use, and enables the motor to operate safely in a limited space. It avoids equipment failures such as noise and shaft sticking caused by lack of oil lubrication of the bearing 3, and improves the equipment utilization rate.

[0036] (4) Grease is sealed in the lower bearing chamber 16 between the bearing outer cover 5 and the shaft body 4 through the skeleton oil seal 15, which is reliable and not easy to leak oil.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the technical principle of the present invention, and these improvements and modifications should also be regarded as within the protection scope of the present invention.

Claims

1. A vertical motor bearing oiling component, characterized in that: The oil filling component comprises an inner bearing cover (1), a flange end cover (2), a bearing (3), a shaft body (4) and an outer bearing cover (5), wherein the inner bearing cover (1), the flange end cover (2) and the outer bearing cover (5) are fixedly arranged from top to bottom to form an integral body, namely, a refueling component, and the refueling component comprises an inner cavity for accommodating the bearing (3) and the shaft body (4), and also comprises an oil inlet pipe (6) and an oil outlet pipe (7) which are in communication with the inner cavity of the refueling component; The flange end cover (2) comprises a bearing seat (22), an end cover circular plate (19) and an end cover flange (20); The bearing inner cover (1) and the bearing outer cover (5) are respectively fixedly arranged at the upper and lower ends of the bearing seat (22) of the flange end cover (2); the shaft body (4) can pass through the bearing inner cover (1), the bearing seat (22) and the bearing outer cover (5) from top to bottom, and the upper and lower ends of the shaft body (4) are exposed from the bearing inner cover (1) and the bearing outer cover (5), respectively; the bearing (3) is arranged on the shaft body (4) through a shaft retaining ring (8).

2. A vertical motor bearing oiling component according to claim 1, characterized in that: The end surface of the bearing inner cover (1) facing the bearing seat (22) is uniformly provided with at least one oil inlet groove (9) along the circumferential direction, and the end surface of the bearing inner cover (1) facing the bearing seat (22) is provided with a bearing inner cover oil groove (10) connected to the oil inlet groove (9), the oil inlet groove (9), the bearing inner cover oil groove (10) and the upper end of the bearing (3) form an upper oil chamber (11), the bearing seat (22) is provided with an oil inlet channel (12) with one end connected to the upper oil chamber (11), and the other end of the oil inlet channel (12) is connected to the oil inlet pipe (6), and the end surface of the bearing outer cover (5) facing the bearing seat (22) is uniformly provided with at least one oil inlet groove (9) along the circumferential direction. At least one oil outlet groove (13) is uniformly formed in the circumferential direction, and a bearing outer cover oil groove (14) communicating with the oil outlet groove (13) is formed on the end surface of the bearing outer cover (5) facing the bearing seat (22). A skeleton oil seal (15) is fixedly arranged between the shaft body (4) and the bearing outer cover (5). The oil outlet groove (13), the bearing outer cover oil groove (14), the skeleton oil seal (15) and the lower end of the bearing (3) form a lower oil chamber (16). The bearing seat (22) is provided with an oil outlet channel (17) having one end communicating with the lower oil chamber (16), and the other end of the oil outlet channel (17) is communicated with the oil outlet pipe (7).

3. A vertical motor bearing oiling component according to claim 1, characterized in that: The bearing inner cover (1) and the bearing outer cover (5) are respectively fixed at the upper and lower ends of the bearing seat (22) by means of screws.

4. A vertical motor bearing oiling component according to claim 2, characterized in that: The bearing seat (22) is provided with threaded holes at the oil inlet passage (12) and the oil outlet passage (17); the oil inlet pipe (6) and the oil outlet pipe (7) are fixedly arranged on the bearing seat (22) through threaded engagement and are respectively connected to the oil inlet passage (12) and the oil outlet passage (17).

5. A vertical motor bearing oiling component according to claim 1, characterized in that: The outer periphery of the bearing seat (22) is fixedly connected to the end cover circular plate (19) via reinforcing ribs (18), and the end cover flange (20) is fixedly connected to the bearing seat (22) and the end cover circular plate (19) respectively via supporting ribs (21).

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