Air cooler speed reducer oil way

Abstract

The invention relates to an air cooler speed reducer oil way which comprises a box body oil way, a flange oil way and a filter oil way, the box body oil way is arranged in a box body, the flange oil way is arranged in a flange, one end of the flange oil way is communicated with the box body oil way, and the filter oil way is arranged in a filter and communicated with the other end of the flange oil way. The speed reducer has the beneficial effects that the speed reducer oil way is arranged in the box body and the flange, the oil leakage phenomenon caused by the bumping condition can be avoided to the maximum extent, the appearance is more orderly, and the oil way arrangement is safer; and an oil way system is not easily influenced by the external environment, particularly, the influence of the environment temperature on lubricating oil is reduced, the three-shaft device can operate in a lubricating state as much as possible, the service life of equipment is prolonged, and the fault frequency of the equipment is reduced.

Description

Technical Field

[0001] The present invention belongs to the field of speed reducer equipment, and particularly relates to an oil circuit for an air cooler speed reducer. Background Art

[0002] The adoption of air cooling technology in power plants can save a large amount of water. Compared with the conventional circulating wet cooling technology, it can save two-thirds of the total plant water consumption. Under the same water resources, the installed capacity can be increased by more than three times that of the original, which has significant economic benefits. In recent years, the rise of the coal chemical industry has also provided a large space for air cooling technology. The air cooling island in coal chemical industry is similar to that in power plants, and the functions of speed reducers are also similar.

[0003] Existing speed reducers are generally installed and operated in outdoor environments and are easily affected by outdoor temperatures. Especially in winter when the ambient temperature is low, the lubricating oil pipelines on the outside are greatly affected, thereby affecting the service life and operating conditions of each bearing in the speed reducer. Summary of the Invention

[0004] To solve the above technical problems, the present invention provides an oil circuit for an air cooler speed reducer.

[0005] The technical solution adopted by the present invention is: an oil circuit for an air cooler speed reducer, which is arranged in an air cooler speed reducer. The air cooler speed reducer includes a box body, a flange arranged above the box body, a filter arranged on the side of the flange, and a three-axis device arranged in the box body;

[0006] The oil circuit includes,

[0007] A box body oil circuit, which is arranged in the box body;

[0008] A flange oil circuit, which is arranged in the flange and has one end communicating with the box body oil circuit;

[0009] A filter oil circuit, which is arranged in the filter and communicates with the other end of the flange oil circuit.

[0010] Preferably, the box body oil circuit includes an oil pumping pipeline and an oil sump. The oil pumping pipeline is arranged in the box body; an oil sump is provided on the upper wall of the box body, and the high-speed shaft hole, intermediate shaft hole, and low-speed shaft hole on the box body respectively communicate with the bottom of the oil sump.

[0011] Preferably, an oil pump is provided at the bottom of the box body, and the oil pump is connected to the oil pumping pipeline.

[0012] Preferably, the oil sump includes a connected oil collecting sump and an oil guiding sump. The bottom of the oil collecting sump communicates with the high-speed shaft hole, intermediate shaft hole, and low-speed shaft hole; one end or the middle of the oil guiding sump corresponds to the flange oil circuit.

[0013] Preferably, the flange oil circuit includes an upstream oil circuit and a downstream oil circuit. The inlet of the upstream oil circuit and the outlet of the downstream oil circuit are arranged at the bottom of the flange, and the outlet of the upstream oil circuit and the inlet of the downstream oil circuit are arranged on the side wall of the flange.

[0014] Preferably, the filter oil circuit includes a filter inlet pipeline and a filter outlet pipeline. The filter inlet pipeline is connected to the upstream oil circuit, and the filter outlet pipeline is connected to the downstream oil circuit; the filter inlet pipeline and the filter outlet pipeline are connected to the filter element in the filter.

[0015] Preferably, a pressure sensor is provided on the side wall of the filter inlet pipeline, and a passage is provided between the filter outlet pipeline and the filter inlet pipeline, and a check valve is provided in the passage.

[0016] Preferably, the oil circuit of the box body and the flange oil circuit are in plane contact, the box body and the flange are fastened by bolts, and a sealant is provided at the connection between the oil circuit of the box body and the flange oil circuit.

[0017] Preferably, a matching groove is provided between the flange oil circuit and the filter oil circuit, and a rubber pad is provided at the connection.

[0018] An air-cooled reducer includes an air-cooled reducer oil circuit.

[0019] The advantages and positive effects of the present invention are as follows: By arranging the reducer oil circuit inside the box body and the flange, it can maximize the avoidance of oil leakage caused by bumping, and the appearance is more tidy, and the oil circuit is set more safely; and the oil circuit system is not easily affected by the external environment, especially reducing the influence of the environmental temperature on the lubricating oil, and trying to keep the three-axis device running in a lubricated state, increasing the service life of the equipment and reducing the frequency of equipment failures. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of an air-cooled reducer according to an embodiment of the present invention;

[0021] Figure 2 is a schematic structural diagram of the oil circuit of an air-cooled reducer according to an embodiment of the present invention;

[0022] Figure 3 is a schematic structural diagram of a box body according to an embodiment of the present invention;

[0023] Figure 4 is a schematic structural diagram of a flange according to an embodiment of the present invention;

[0024] Figure 5 is a schematic sectional structural diagram of a flange according to an embodiment of the present invention;

[0025] Figure 6 is a schematic sectional structural diagram of a box body according to an embodiment of the present invention.

[0026] In the figure:

[0027] 11. High-speed shaft 12. Intermediate shaft 13. Low-speed shaft

[0028] 2. Housing 21. High-speed shaft hole 22. Intermediate shaft hole

[0029] 23. Low-speed shaft hole 24. Key structure 25. Oil guide groove

[0030] 26. Oil sump 27. Oil pump 28. Oil suction pipeline

[0031] 29. Dry well structure 3. Flange 31. Upstream oil circuit

[0032] 32. Downstream oil circuit 33. Groove structure 4. Filter

[0033] 41. Filter inlet pipeline 42. Filter outlet pipeline 43. Pressure sensor

[0034] 44. Check valve 45. Passage check valve Detailed implementation manners

[0035] The embodiments of the present invention will be described below with reference to the accompanying drawings.

[0036] As Figure 1-2 shown, the present invention relates to an oil circuit of an air cooler speed reducer and an air cooler speed reducer including the oil circuit, and the oil circuit is arranged inside the air cooler speed reducer. The air cooler speed reducer includes a housing 2, a flange 3, a filter 4, and a three-shaft device arranged in the housing 2. The flange 3 is arranged above the housing 2, and the filter 4 can be arranged on the side of the housing 2 and the flange 3. Inside the housing 2, there is a three-shaft device that meshes with each other, namely a high-speed shaft 11, an intermediate shaft 12, and a low-speed shaft 13. The three-shaft device can be arranged linearly or non-linearly. The upper end of the high-speed shaft 11 corresponds to the position of the flange 3, and the motor can pass through the through holes at the corresponding positions of the flange 3 and the housing 2 to be connected to the high-speed shaft 11; the intermediate shaft 12 is connected between the high-speed shaft 11 and the low-speed shaft 13 to achieve the transmission function; the lower end of the low-speed shaft 13 protrudes from the housing 2 and is used to connect the fan blade device. The flange 3 is arranged above the housing 2. On the one hand, it is used to carry or wrap the motor assembly, and on the other hand, it can be used as the upper end cover of the housing 2. In some embodiments of the present invention, an arc-shaped groove structure 33 can be provided on the bottom surface of the flange 3, and an arc-shaped key structure 24 is provided on the upper surface of the housing 2. The arc-shaped key structure 24 matches the arc-shaped groove structure 33, so as to position the flange 3 so that it can be connected to the corresponding position of the housing 2.

[0037] As Figure 2As shown in the figure, the lubricating oil circuit of the air cooler reducer includes the oil circuit of the housing 2, the oil circuit of the flange 3, and the oil circuit of the filter 4. The oil circuit of the housing 2 is arranged inside the housing 2; the oil circuit of the flange 3 is arranged inside the flange 3 and is connected to the oil circuit of the housing 2 at one end; the oil circuit of the filter 4 is arranged inside the filter 4 and is connected to the other end of the oil circuit of the flange 3. The oil circuit of the housing 2 can be connected to the oil circuit of the flange 3 and is connected to the filter 4, and the formed passage can be used for the circulation of the lubricating oil. Setting the lubricating oil circuit inside the housing 2 instead of the traditional external oil circuit can not only avoid damage caused by external force collision to the oil circuit, but also reduce the influence of the external environment on the oil circuit. In particular, it can improve the influence of environmental temperature change on the lubricating oil, so that the lubricating oil can continuously and effectively provide lubrication, improve the lubrication effect, and ensure the stable operation of the three-axis device.

[0038] As Figure 3-4 shown, the oil circuit of the flange 3 includes an upstream oil circuit 31 and a downstream oil circuit 32. The inlet of the upstream oil circuit 31 and the outlet of the downstream oil circuit 32 are arranged at the bottom of the flange 3, and the outlet of the upstream oil circuit 31 and the inlet of the downstream oil circuit 32 are arranged on the side wall of the flange 3. As Figure 4 and Figure 6 shown, the upper wall of the housing 2 is respectively provided with a high-speed shaft hole 21, an intermediate shaft hole 22, and a low-speed shaft hole 23 corresponding to the high-speed shaft 11, the intermediate shaft 12, and the low-speed shaft 13. The oil circuit of the housing 2 includes an oil pumping pipeline 28 and an oil sump. The oil pumping pipeline 28 is connected to the inlet of the upstream oil circuit 31 in the flange 3, and the oil sump corresponds to the outlet of the downstream oil circuit 32 in the flange 3. The oil sump includes a connected oil collecting sump 26 and an oil guiding sump 25. The oil guiding sump 25 is linear or arc-shaped, and one end or the middle of it corresponds to the outlet of the downstream oil circuit 32. In some embodiments of the present invention, a recessed groove structure 33 can be correspondingly arranged on the flange 3 at the position corresponding to the oil guiding sump 25; the depth of the oil collecting sump 26 is greater than that of the oil guiding sump 25 and is used for temporarily collecting the lubricating oil. The bottom of the oil collecting sump 26 is connected to the high-speed shaft hole 21, the intermediate shaft hole 22, and the low-speed shaft hole 23. The lubricating oil can be dispersed into each shaft hole through the oil collecting sump 26 for lubricating the three-axis device therein. After the lubricating oil flows through the three-axis device, it is collected at the bottom of the housing 2. A oil pump 27 is arranged at the bottom of the housing 2. The oil pump 27 is connected to the oil pumping pipeline 28, and the oil pumping pipeline 28 is arranged inside the housing 2; the oil pump 27 is driven by the high-speed shaft 11 to transport the lubricating oil to the upstream outlet through the pipeline. After the lubricating oil at the bottom of the housing 2 enters the oil pumping pipeline 28 under the action of the oil pump 27, it then enters the filter 4 through the upstream oil circuit 31 in the flange 3, returns to the downstream oil circuit 32 in the flange 3 after filtration, and then enters the oil sump in the oil circuit of the housing 2. After being collected by the oil collecting sump 26, it enters the through holes corresponding to the three-axis device to lubricate the three-axis device, realizing the circulation of the lubricating oil.

[0039] The filter 4 is connected to the side of the flange 3. The oil passage in the filter 4 is in communication with the oil passage in the flange 3, and it can filter the lubricating oil after lubricating the three-axis device. The oil passage of the filter 4 includes a filter inlet pipeline 41 and a filter outlet pipeline 42. The filter inlet pipeline 41 is in communication with the upstream oil passage 31, and the filter outlet pipeline 42 is in communication with the downstream oil passage 32. The filter inlet pipeline 41 and the filter outlet pipeline 42 are connected to the filter element in the filter 4. A pressure sensor 43 is provided on the side wall of the filter inlet pipeline 41. In some embodiments of the present invention, the pressure sensor 43 is arranged on the upper part of the filter 4. The pressure sensor 43 can be used to monitor the pressure condition in the oil passage to ensure good lubrication of the upper bearing. A check valve 44 is provided at the end of the filter outlet pipeline 42 to ensure the establishment of oil pressure and enable the pressure switch to work properly. The pressure switch can monitor the pressure value in the oil passage, convert the pressure value into an electrical signal and send it out to play a protective role. A passage is also provided between the filter outlet pipeline 42 and the filter inlet pipeline 41, and a passage check valve 45 is provided in the passage. When the filter 4 is blocked, the passage check valve 45 can be opened to allow the lubricating oil to directly circulate without passing through the filter element, avoiding the risk of oil leakage due to excessive pressure in the filter 4. The pressure sensor 43 and the passage check valve 44 can be connected by a conventional circuit design.

[0040] The oil passage of the housing 2 and the oil passage of the flange 3 are in planar contact. The housing 2 and the flange 3 are fastened by bolts. A sealant is provided at the connection between the oil passage of the housing 2 and the oil passage of the flange 3 to avoid oil leakage; a matching groove is provided between the oil passage of the flange 3 and the oil passage of the filter 4, and a rubber pad is provided at the connection to avoid oil leakage; the oil pumping pipeline 28 is arranged in the housing 2 and is threadedly connected to the oil passage of the housing 2 provided in the side wall of the housing 2, and is fastened with sealant. A dry well structure 29 is provided at the bottom of the housing 2, and the low-speed shaft 13 passes through the dry well structure 29. In order to avoid lubricating oil leakage, a rubber lip is provided at the upper end of the dry well structure 29 to effectively seal the gap between the dry well structure 29 and the low-speed shaft 13, further reducing the risk of oil leakage.

[0041] Embodiment:

[0042] The air-cooled reducer includes a three-axis device, a housing 2, a flange 3 and a filter 4. The three-axis device includes a high-speed shaft 11, an intermediate shaft 12 and a low-speed shaft 13 that mesh with each other and are arranged non-linearly in the housing 2. A cylindrical roller bearing is provided between the upper part of the low-speed shaft 13 and the housing 2. The lower part of the low-speed shaft 13, as well as the upper and lower parts of the intermediate shaft 12 and the low-speed shaft 13, are connected to the housing 2 through tapered roller bearings. A dry well structure 29 is provided inside the housing 2, and the low-speed shaft 13 passes through the dry well structure 29, and a rubber lip is provided at the upper end of the dry well structure 29.

[0043] On the upper wall of the housing 2, there are respectively provided a high-speed shaft hole 21, an intermediate shaft hole 22, and a low-speed shaft hole 23 corresponding to the high-speed shaft 11, the intermediate shaft 12, and the low-speed shaft 13. The air cooler reduction gear oil circuit includes the housing 2 oil circuit, the flange 3 oil circuit, and the filter 4 oil circuit. An oil circuit of the housing 2 for circulating lubricating oil is provided in the wall of the housing 2; the flange 3 is arranged above the housing 2, an arc-shaped groove structure 33 is provided at the lower part of the flange 3, and an arc-shaped key structure 24 is provided on the upper wall of the housing 2, and the arc-shaped key structure 24 matches the arc-shaped groove structure 33; a flange 3 through hole matching the high-speed shaft 11 in position is provided in the middle of the flange 3, and an oil circuit of the flange 3 is provided at the lower part of the outer side surface, and one end of the oil circuit of the flange 3 can communicate with the oil circuit of the housing 2; the filter 4 is connected to the other end of the oil circuit of the flange 3.

[0044] The oil circuit of the housing 2 includes an oil pumping pipeline 28 and an oil sump; the oil pumping pipeline 28 is arranged inside the housing 2, and the lower part is connected to an oil pump 27 arranged at the bottom of the housing 2, and the lubricating oil accumulated at the bottom of the housing 2 can enter the oil pumping pipeline 28 under the action of the oil pump 27; an oil sump is provided on the upper wall of the housing 2, and the oil sump includes a connected oil collecting sump 26 and an oil guiding groove 25, and the bottom of the oil collecting sump 26 communicates with the high-speed shaft hole 21, the intermediate shaft hole 22, and the low-speed shaft hole 23. The oil circuit of the flange 3 includes an upstream oil circuit 31 and a downstream oil circuit 32, the inlet of the upstream oil circuit 31 and the outlet of the downstream oil circuit 32 are arranged at the bottom of the flange 3, and the outlet of the upstream oil circuit 31 and the inlet of the downstream oil circuit 32 are arranged on the side wall of the flange 3; the inlet of the upstream oil circuit 31 is connected to the oil pumping pipeline 28, and the outlet of the downstream oil circuit 32 corresponds to one end of the oil guiding groove 25.

[0045] The outlet of the upstream oil circuit 31 and the inlet of the downstream oil circuit 32 are connected to the filter 4. The filter 4 includes a filter inlet oil pipeline 41, a filter element, and a filter outlet oil pipeline 42, the filter inlet oil pipeline 41 communicates with the upstream oil circuit 31, and the filter outlet oil pipeline 42 communicates with the downstream oil circuit 32. A pressure sensor 43 is provided on the side wall of the filter inlet oil pipeline 41 for detecting the pressure in the oil circuit; a check valve 44 is provided at the end of the filter outlet oil pipeline 42; a passage is provided between the filter outlet oil pipeline 42 and the filter inlet oil pipeline 41, and a passage check valve 45 is provided in the passage.

[0046] During use, the lubricating oil at the bottom of the housing 2 enters the oil pumping pipeline 28 under the action of the oil pump 27, enters the filter inlet oil pipeline 41 through the upstream oil circuit 31 in the flange 3, is filtered through the filter element of the filter 4, flows out from the filter outlet oil pipeline 42, enters the oil guiding groove 25 and the oil collecting sump 26 through the downstream oil circuit 32 of the flange 3, and the lubricating oil in the oil collecting sump 26 respectively enters the high-speed shaft hole 21, the intermediate shaft hole 22, and the low-speed shaft hole 23 to lubricate the high-speed shaft 11, the intermediate shaft 12, and the low-speed shaft 13, and the remaining lubricating oil will re-collect at the bottom of the housing 2, thus forming a lubricating oil circulation pipeline.

[0047] The embodiments of the present invention have been described in detail above, but the above content is only the preferred embodiments of the present invention and cannot be considered as limiting the scope of implementation of the present invention. All equivalent changes and improvements made in accordance with the scope of the application of the present invention shall still fall within the scope covered by the patent of the present invention.

Claims

1. An oil circuit for the reducer of an air cooler, characterized in that: It is arranged in an air cooler speed reducer, which includes a box body, a flange arranged above the box body, a filter arranged on the side of the flange, and a three-axis device arranged in the box body; The oil circuit includes, a box body oil circuit arranged in the box body; a flange oil circuit arranged in the flange, with one end communicating with the box body oil circuit; a filter oil circuit arranged in the filter, communicating with the other end of the flange oil circuit.

2. The oil circuit of the air cooler reducer according to claim 1, characterized in that: The box body oil circuit includes an oil pumping pipeline and an oil sump. The oil pumping pipeline is arranged in the box body; an oil sump is provided on the upper wall of the box body, and the high-speed shaft hole, the intermediate shaft hole, and the low-speed shaft hole on the box body respectively communicate with the bottom of the oil sump.

3. The oil path of the air cooler reducer according to claim 2, characterized in that: A oil pump is provided at the bottom of the box body, and the oil pump is connected to the oil pumping pipeline.

4. The oil circuit of the air cooler reducer according to claim 2, characterized in that: The oil sump includes a connected oil collecting sump and an oil guiding sump. The bottom of the oil collecting sump communicates with the high-speed shaft hole, the intermediate shaft hole, and the low-speed shaft hole; one end or the middle of the oil guiding sump corresponds to the flange oil circuit.

5. The oil path of the air cooler reducer according to claim 1, characterized in that: The flange oil circuit includes an upstream oil circuit and a downstream oil circuit. The inlet of the upstream oil circuit and the outlet of the downstream oil circuit are arranged at the bottom of the flange, and the outlet of the upstream oil circuit and the inlet of the downstream oil circuit are arranged on the side wall of the flange.

6. The oil path of the air cooler reducer according to claim 5, characterized in that: The filter oil circuit includes a filter inlet oil pipeline and a filter outlet oil pipeline. The filter inlet oil pipeline communicates with the upstream oil circuit, and the filter outlet oil pipeline communicates with the downstream oil circuit; the filter inlet oil pipeline and the filter outlet oil pipeline are connected to the filter element in the filter.

7. The oil circuit of the air cooler reducer according to claim 6, characterized in that: A pressure sensor is provided on the side wall of the filter inlet oil pipeline, and a passage is provided between the filter outlet oil pipeline and the filter inlet oil pipeline, and a passage check valve is provided in the passage.

8. The oil circuit of the air cooler reducer according to any one of claims 1-7, characterized in that: The box body oil circuit and the flange oil circuit are in plane contact. The box body and the flange are fastened by bolts, and a sealant is provided at the connection between the box body oil circuit and the flange oil circuit.

9. The oil circuit for the air cooler reducer according to any one of claims 1-7, characterized in that: A matching groove is provided between the flange oil circuit and the filter oil circuit, and a rubber pad is provided at the connection.

10. An air cooler speed reducer, characterized in that: It includes the oil circuit of the air cooler speed reducer according to any one of claims 1-9.

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