Mounting seat

Abstract

The utility model relates to a mounting seat, relates to the technical field of aviation lubricating oil pumps, and is used for solving the problems that the mounting seat in the prior art is difficult to realize effective sealing and cannot continuously cool and lubricate a high-speed bearing and a bearing cover. The mounting seat comprises an oil inlet, an oil outlet, a first bearing end cover, a second bearing end cover and a seat body, and the first bearing end cover and the second bearing end cover are arranged at the two ends of the seat body; a first flow channel is arranged in the seat body, a first annular channel is arranged in the first bearing end cover, a second annular channel is arranged in the second bearing end cover, and the first annular channel and the second annular channel are both communicated with the first flow channel; the oil inlet communicates with the oil outlet through the first flow channel, the first annular channel and the second annular channel. According to the utility model, the bearing can be lubricated and cooled, the bearing cover can be cooled, and the sealing function of two sides of the output end of the transmission shaft can be realized.

Description

Technical Field

[0001] This utility model relates to the field of aviation lubricating oil pump technology, and in particular to a mounting base. Background Technology

[0002] Aviation multistage lubricating oil pumps are mostly driven by high speeds, and the medium is lubricating oil with a maximum temperature of 200°C. In the aviation multistage lubricating oil pump test bench, the lubricating oil pump has the characteristics of high temperature and high speed. The lubricating oil pump seat needs to continuously output an adjustable speed to drive the lubricating oil pump. At the same time, the lubricating oil pump cavity must be sealed through the seat to ensure that when there is a certain positive and negative pressure in the lubricating oil pump cavity, external oil and gas will not enter the lubricating oil pump cavity, and the high-temperature oil in the cavity will not leak, thereby ensuring the test requirements.

[0003] Currently, the mounting brackets used in lubricating pump tests are usually bulky, difficult to achieve effective sealing, and unable to provide continuous cooling and lubrication for high-speed bearings and bearing caps. Utility Model Content

[0004] Based on the above analysis, the present invention aims to provide a mounting base that solves the problem in the prior art that mounting bases are difficult to achieve effective sealing and continuous cooling and lubrication of high-speed bearings and bearing caps.

[0005] The objective of this utility model is mainly achieved through the following technical solutions:

[0006] This utility model provides a mounting base, including an oil inlet, an oil outlet, a first bearing end cover, a second bearing end cover, and a base body, wherein the first bearing end cover and the second bearing end cover are disposed at both ends of the base body;

[0007] The housing is provided with a first flow channel and a third flow channel. The first flow channel is connected to the oil inlet and the third flow channel is connected to the oil outlet. The first bearing end cover is provided with a first annular channel and the second bearing end cover is provided with a second annular channel. Both the first annular channel and the second annular channel are connected to the first flow channel and the third flow channel.

[0008] The first annular channel and the second annular channel are connected to the oil inlet through the first flow channel, and to the oil outlet through the third flow channel.

[0009] Furthermore, the first bearing end cover is also provided with a first shaft seal and a second shaft seal, which press against the shaft rod to maintain a sealed environment within the mounting base.

[0010] Furthermore, a third shaft seal is also provided on the second bearing end cover, the third shaft seal pressing the shaft rod to maintain a sealed environment within the mounting base.

[0011] Furthermore, the first shaft seal, the second shaft seal, and the third shaft seal are made of polytetrafluoroethylene material.

[0012] Furthermore, a first bearing sealing inner ring and a first bearing sealing outer ring are also provided inside the first bearing end cover, and the first annular channel is provided between the first bearing sealing inner ring and the first bearing sealing outer ring.

[0013] Furthermore, a second bearing sealing inner ring and a second bearing sealing outer ring are also provided inside the second bearing end cover, and the second annular channel is provided between the second bearing sealing inner ring and the second bearing sealing outer ring.

[0014] Furthermore, a first clamping bolt is provided on the first bearing end cover, and a second clamping bolt is provided on the second bearing end cover. The first clamping bolt is used to clamp the inner and outer rings of the first bearing seal, and the second clamping bolt is used to clamp the inner and outer rings of the second bearing seal. Furthermore, a second flow channel is provided in the housing, and the oil inlet communicates with the bearing through the second flow channel.

[0015] Furthermore, the diameters of the second and third flow channels are smaller than the diameter of the first flow channel.

[0016] Furthermore, it also includes a temperature sensor, which is mounted on the bearing.

[0017] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0018] (1) The mounting base of this utility model provides a first flow channel in the body, a first annular channel in the first bearing end cover, and a second annular channel in the second bearing end cover, so that the oil inlet is connected to the oil outlet through the first flow channel, the first annular channel and the second annular channel, thereby enabling the cooling of the first bearing end cover and the second bearing end cover.

[0019] (2) By setting a first shaft seal and a second shaft seal in the first bearing end cover and a third shaft seal in the second bearing end cover, the sealing performance and stability of the mounting seat are improved, and oil and gas leakage is avoided. The seat body can be sealed to ensure that the oil in the mounting seat will not leak during high-speed operation and that gas will not be sucked in under the negative pressure of the lubricating oil pump.

[0020] (3) By setting the first bearing sealing inner ring, the first bearing sealing outer ring, the second bearing sealing inner ring, and the second bearing sealing outer ring, the sealing performance and stability of the mounting seat are improved, oil and gas leakage is avoided, the seat body is sealed, and the sealing performance of the first flow channel and the second flow channel is improved.

[0021] (4) The bearing temperature is monitored during operation by a temperature sensor, and an alarm is triggered in time when the bearing temperature is too high to prevent the components from being damaged due to high temperature.

[0022] In this invention, the above-described technical solutions can be combined with each other to achieve more preferred combinations. Other features and advantages of this invention will be set forth in the following description, and some advantages will become apparent from the description or be learned by practicing this invention. The objectives and other advantages of this invention can be realized and obtained from the details specifically pointed out in the text and accompanying drawings. Attached Figure Description

[0023] The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Throughout the drawings, the same reference numerals denote the same parts.

[0024] Figure 1 This is a schematic diagram of the overall structure of the mounting base of this utility model;

[0025] Figure 2 This is a longitudinal sectional view of the mounting base of this utility model;

[0026] Figure 3 This is a schematic diagram of the structure of the first bearing end cap of this utility model;

[0027] Figure 4 This is a schematic diagram of the structure of the second bearing end cap of this utility model;

[0028] Figure 5 This is a schematic diagram of the structure of the first and second shaft seals of this utility model;

[0029] Figure 6 This is a schematic diagram of the structure of the third shaft seal of this utility model.

[0030] Figure label:

[0031] 1-Oil inlet; 2-Oil outlet; 3-First bearing end cover; 31-First bearing inner seal ring; 32-First bearing outer seal ring; 33-First annular channel; 34-First clamping bolt; 35-First shaft seal; 36-Second shaft seal; 4-Second bearing end cover; 41-Second bearing inner seal ring; 42-Second bearing outer seal ring; 43-Second annular channel; 44-Third shaft seal; 5-Seat body; 51-First flow channel; 52-Second flow channel; 53-Third flow channel; 6-Drive shaft; 7-Shaft rod. Detailed Implementation

[0032] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which constitute a part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0033] A specific embodiment of this utility model discloses a mounting base, such as... Figures 1-2 As shown, the device includes an oil inlet 1, an oil outlet 2, a first bearing end cover 3, a second bearing end cover 4, and a housing 5. The first bearing end cover 3 and the second bearing end cover 4 are located at both ends of the housing 5. A shaft 7 is located inside the housing 5. One end of the shaft 7 passes through the first bearing end cover 3 and is connected to the lubricating oil pump fixture via a drive shaft 6. The other end of the shaft 7 passes through the second bearing end cover 4. Both the oil inlet 1 and the oil outlet 2 are connected to the housing 5. The oil inlet 1 is connected to the oil outlet 2 through the housing 5, so that lubricating oil enters the housing 5 through the oil inlet 1 to cool and lubricate the bearing, cool the first bearing end cover 3 and the second bearing end cover 4, and flows out from the oil outlet 2.

[0034] like Figures 2-3 As shown, the housing 5 is provided with a first flow channel 51, a second flow channel 52, and a third flow channel 53. The first and second flow channels 51 and 52 are both connected to the oil inlet 1, the second flow channel 52 is connected to the shaft 7, and the third flow channel 53 is connected to the oil outlet 2. Both the first and third flow channels 51 and 53 are connected to the first bearing end cap 3 and the second bearing end cap 4. Lubricating oil enters the housing 5 through the oil inlet 1. Part of it flows through the first flow channel 51, past the first bearing end cap 3 and the second bearing end cap 4, and then through the third flow channel 53 to the oil outlet 2, cooling the first and second bearing end caps 3 and 4. Another part flows through the second flow channel 52, past the shaft 7, and is thrown out by centrifugal force under the rotation of the shaft 7, cooling and lubricating the bearings before flowing to the oil outlet 2. The oil outlet 2 is connected to an external oil extraction device to extract the lubricating oil from the housing 5, facilitating the recovery and reuse of the lubricating oil.

[0035] For example, an external oil extraction device is an oil pump.

[0036] Preferably, the diameters of the second flow channel 52 and the third flow channel 53 are smaller than the diameter of the first flow channel 51, thereby creating a certain flow resistance, allowing the lubricating oil to be sprayed onto the bearing and to cool the first bearing end cover 3 and the second bearing end cover 4.

[0037] like Figure 3 and Figure 4As shown, a first annular channel 33 is provided inside the first bearing end cover 3, and a second annular channel 43 is provided inside the second bearing end cover 4. Both the first annular channel 33 and the second annular channel 43 are connected to the first flow channel 51 and the third flow channel 53, so that the lubricating oil enters the first annular channel 33 and the second annular channel 43 from the first flow channel 51, cools down the first bearing end cover 3 and the second bearing end cover 4, and then flows to the oil outlet 2 through the third flow channel 53.

[0038] The first bearing end cover 3 is further provided with a first bearing sealing inner ring 31 and a first bearing sealing outer ring 32. The second bearing end cover 4 is further provided with a second bearing sealing inner ring 41 and a second bearing sealing outer ring 42. A first annular channel 33 is provided between the first bearing sealing inner ring 31 and the first bearing sealing outer ring 32. A second annular channel 43 is provided between the second bearing sealing inner ring 41 and the second bearing sealing outer ring 42.

[0039] The first bearing end cover 3 is also provided with a first clamping bolt 34, and the second bearing end cover 4 is also provided with a second clamping bolt. The first clamping bolt 34 is used to clamp the first bearing inner sealing ring 31 and the first bearing outer sealing ring 32, and the second clamping bolt is used to clamp the second bearing inner sealing ring 41 and the second bearing outer sealing ring 42.

[0040] Furthermore, such as Figure 5 As shown, a first shaft seal 35 and a second shaft seal 36 are also provided on the first bearing end cover 3. The first shaft seal 35 and the second shaft seal 36 are symmetrically arranged. The first shaft seal 35 and the second shaft seal 36 press tightly against the shaft rod 7 to maintain the sealing environment inside the mounting seat and prevent oil and gas leakage.

[0041] Furthermore, such as Figure 6 As shown, a third shaft seal 44 is also provided on the second bearing end cover 4. The third shaft seal 44 presses tightly against the shaft rod 7 to maintain a sealed environment inside the mounting base and prevent oil and gas leakage.

[0042] Understandably, when the lubricating pump fixture is under positive pressure, the first shaft seal 35 expands under pressure, further pressing the shaft 7, thereby preventing lubricating oil and gas in the housing 5 from leaking due to positive pressure; when the lubricating pump fixture is under negative pressure, the second shaft seal 36 expands under pressure, further pressing the shaft 7, thereby preventing lubricating oil and gas in the housing 5 from leaking due to negative pressure. For example, the first shaft seal 35, the second shaft seal 36, and the third shaft seal 44 are made of polytetrafluoroethylene (PTFE), which has the characteristic of expanding under pressure and is resistant to high temperatures and high-speed rotation.

[0043] By setting a first shaft seal 35 and a second shaft seal 36 in the first bearing end cover 3 and a third shaft seal 44 in the second bearing end cover 4, the sealing performance and stability of the mounting base are improved, oil and gas leakage is avoided, the seat body 5 is sealed, and the oil in the mounting base will not leak during high-speed operation. Under the negative pressure of the lubricating oil pump, gas will not be sucked in.

[0044] Preferably, the mounting base also includes a temperature sensor, which is installed on the bearing to monitor the bearing temperature during operation and transmit the temperature signal to the computer. When the temperature exceeds the set value, the computer will issue an alarm to prevent the bearing temperature from becoming too high and causing damage to the components.

[0045] Compared with the prior art, the mounting base of this utility model, by setting a first flow channel 51 and a second flow channel 52 in the base body 5, connects the oil inlet 1 to the oil outlet 2 through the first flow channel 51 and the second flow channel 52, thereby cooling the first bearing end cover 3 and the second bearing end cover 4; by setting a first bearing sealing inner ring 31 and a first bearing sealing outer ring 32, as well as a second bearing sealing inner ring 41 and a second bearing sealing outer ring 42, the sealing performance of the first flow channel 51 and the second flow channel 52 of the mounting base is improved, avoiding oil and gas leakage; by setting a first shaft seal 35 and a second shaft seal 36 in the first bearing end cover 3, and a third shaft seal 44 in the second bearing end cover 4, the sealing performance and stability of the mounting base during operation are improved, avoiding oil and gas leakage, achieving sealing of the base body 5, ensuring that the oil in the mounting base will not leak during high-speed operation, and that gas will not be sucked in under the negative pressure state of the lubricating oil pump; by using a temperature sensor to monitor the bearing temperature during the bearing operation, and promptly alarming when the bearing temperature is too high, preventing component damage due to high temperature.

[0046] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the protection scope of the present utility model.

Claims

1. A mounting base, characterized in that, It includes an oil inlet (1), an oil outlet (2), a first bearing end cap (3), a second bearing end cap (4), and a seat (5), wherein the first bearing end cap (3) and the second bearing end cap (4) are disposed at both ends of the seat (5); The seat (5) is provided with a first flow channel (51) and a third flow channel (53). The first flow channel (51) is connected to the oil inlet (1), and the third flow channel (53) is connected to the oil outlet (2). The first bearing end cover (3) is provided with a first annular channel (33), and the second bearing end cover (4) is provided with a second annular channel (43). The first annular channel (33) and the second annular channel (43) are both connected to the first flow channel (51) and the third flow channel (53). The first annular channel (33) and the second annular channel (43) are connected to the oil inlet (1) through the first flow channel (51) and to the oil outlet (2) through the third flow channel (53).

2. The mounting base according to claim 1, characterized in that, The first bearing end cover (3) is also provided with a first shaft seal (35) and a second shaft seal (36). The first shaft seal (35) and the second shaft seal (36) press against the shaft rod (7) to maintain a sealed environment inside the mounting seat.

3. The mounting base according to claim 2, characterized in that, A third shaft seal (44) is also provided on the second bearing end cover (4), which presses against the shaft rod (7) to maintain a sealed environment inside the mounting base.

4. The mounting base according to claim 3, characterized in that, The first shaft seal (35), the second shaft seal (36) and the third shaft seal (44) are made of polytetrafluoroethylene material.

5. The mounting base according to claim 1, characterized in that, The first bearing end cover (3) is also provided with a first bearing sealing inner ring (31) and a first bearing sealing outer ring (32), and the first annular channel (33) is provided between the first bearing sealing inner ring (31) and the first bearing sealing outer ring (32).

6. The mounting base according to claim 5, characterized in that, The second bearing end cover (4) is also provided with a second bearing sealing inner ring (41) and a second bearing sealing outer ring (42), and the second annular channel (43) is provided between the second bearing sealing inner ring (41) and the second bearing sealing outer ring (42).

7. The mounting base according to claim 6, characterized in that, The first bearing end cover (3) is also provided with a first clamping bolt (34), and the second bearing end cover (4) is also provided with a second clamping bolt. The first clamping bolt (34) is used to clamp the first bearing inner seal ring (31) and the first bearing outer seal ring (32), and the second clamping bolt is used to clamp the second bearing inner seal ring (41) and the second bearing outer seal ring (42).

8. The mounting base according to claim 1, characterized in that, The seat (5) is also provided with a second flow channel (52), and the oil inlet (1) is connected to the shaft (7) through the second flow channel (52).

9. The mounting base according to claim 8, characterized in that, The diameters of the second flow channel (52) and the third flow channel (53) are smaller than the diameter of the first flow channel (51).

10. The mounting base according to any one of claims 1-9, characterized in that, It also includes a temperature sensor, which is mounted on the bearing.

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