Self-sealing type high-position oil tank

Abstract

The utility model belongs to the technical field of lubricating devices, and provides a self-sealing type high-level oil tank which is characterized in that a self-sealing valve (9) is mounted at the top of the high-level oil tank (1) and is communicated with the high-level oil tank (1) through a runner hole (10); a cone valve rod (14) is fixedly installed on an inner bottom plate of a shell (12) of the self-sealing valve (9), a buoy (13) is arranged on the cone valve rod (14) in a sleeved mode, a sealing head (20) is arranged on the head portion of the cone valve rod (14), a sealing ring I (18) is arranged in an annular groove (19) in the sealing head (20), the sealing head (20) is arranged in a cavity (25) in the bottom of a cone valve body (15), and the cone valve body (15) is arranged on a top cover of the shell (12). And a ventilation bent pipe (16) is fixedly mounted at the upper end of the cone valve body (15). Oil does not need to flow back to a thin oil station through an oil return pipeline, and the manufacturing cost of the oil station is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of lubrication devices, in particular to a self-sealing high-position oil tank. Background Art

[0002] If the thin oil station that lubricates large fan bearings and large motor bearings suddenly stops supplying lubricating oil for some reason, the fan or motor will stop urgently. However, due to the huge inertia, the main shaft needs to rotate for a period of time before it can stop. This process can take several minutes or tens of minutes. If the main shaft bearings are allowed to run without oil during this period, the bearings will soon burn out due to overheating. Therefore, such thin oil stations are equipped with high-level oil tanks, which are installed on the upper platform of the equipment to be lubricated (usually at a height of about ten meters). When the thin oil station is running, the high-level oil tank is filled with lubricating oil. When the thin oil station stops running, the lubricating oil in the high-level oil tank flows into the lubrication part under the action of gravity, thereby protecting the equipment.

[0003] In the traditional design, the lower oil port of the high-level oil tank is connected with the oil supply pipeline of the thin oil station through a pipeline, and a three-valve group is installed in the middle of the pipeline. The oil port of the high-level oil tank is connected back to the thin oil station through the return oil pipeline. In this way, during operation, part of the pressure oil supplied by the thin oil station flows into the high-level oil tank through the throttling orifice on the three-valve group. When the oil level in the high-level oil tank rises to the position of the oil return port of the high-level oil tank, the excess oil flows back to the oil tank continuously through the return oil pipeline. When the oil supply of the thin oil station is interrupted, the oil in the high-level oil tank pushes open the one-way valve on the three-valve group under the action of gravity, and continues to supply oil to the equipment through the single-tube valve and the throttling orifice. However, the defect in the traditional design is that part of the lubricating oil supplied by the thin oil station flows back to the thin oil station through the high-level oil tank through the return oil pipeline. In this way, when designing the thin oil station, the flow rate of the system must be increased, and the relevant filters and coolers must be increased, the cost of the entire oil station increases, and the corresponding later operation and maintenance costs will also increase.

[0004] CN201526793U discloses an emergency oil supply device for a thin oil lubrication station, whose high-position oil tank also needs to be connected to the oil return pipe of the thin oil lubrication station through an oil return pipe, and the cost of the thin oil station is relatively high. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a self-sealing high-position oil tank which does not require an oil return pipeline to return oil to a thin oil station and reduces the cost of the oil station.

[0006] In order to solve the above technical problems, the utility model provides a self-sealing high-position oil tank, including a high-position oil tank, a three-valve group and a thin oil station. An oil port is provided at the bottom of the high-position oil tank, and the oil port is connected to the thin oil station through an oil supply pipeline, and a three-valve group is provided on the oil supply pipeline. A self-sealing valve is installed on the top of the high-position oil tank, and the self-sealing valve is connected to the high-position oil tank through a flow channel hole; the self-sealing valve is assembled by a shell, a float, a cone valve stem, a cone valve body and a vent elbow; a cone valve stem is fixedly installed on the bottom plate of the shell, a float is sleeved on the cone valve stem, a sealing head is provided on the head of the cone valve stem, a sealing ring I is provided in the annular groove on the sealing head, the sealing head is placed in the cavity at the bottom of the cone valve body, and the cone valve body is arranged on the shell top cover; a vent elbow is fixedly installed on the upper end of the cone valve body.

[0007] By adopting the above technical solution, a self-sealing valve is set on the high-level oil tank, and the float of the self-sealing valve is driven to rise and fall by the oil entering the shell. The rise of the float drives the sealing head to close, so that the oil inlet stops when the high-level oil tank is full, and there is no need to return the oil to the thin oil station through the return oil pipeline, thereby reducing the cost of the oil station.

[0008] Preferably, a mounting plate is arranged around the outer bottom of the shell, screw holes are provided on the mounting plate, and a self-sealing valve is installed on the top of the high-position oil tank by bolts.

[0009] By adopting the above technical solution, the top of the high-position oil tank is connected to the self-sealing valve by bolts, which is convenient for obtaining materials and simple for assembly.

[0010] Preferably, the ventilation elbow is hook-shaped, with the ventilation opening facing downward.

[0011] By adopting the above technical solution, dust can be prevented from falling into the ventilation elbow and into the oil, thereby affecting the lubrication effect.

[0012] Preferably, an internal thread is provided on the top cover of the shell, and an external thread is provided on the cone valve body.

[0013] By adopting the above technical solution, the cone valve body is directly screwed on the top cover, which is easy to install.

[0014] Preferably, a sealing groove is provided at the bottom of the shell, and a sealing ring II is provided in the sealing groove.

[0015] By adopting the above technical solution, the shell is sealed and connected to the top surface of the high-position oil tank, the sealing effect of the self-sealing valve is increased, and the lifting and lowering effect of the buoy is ensured.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. The utility model sets a self-sealing valve on the high-position oil tank, and the float of the self-sealing valve is driven to rise and fall by the oil entering the shell. The rise of the float drives the sealing head to close, so that the oil inlet stops when the high-position oil tank is full, and there is no need to return the oil to the oil station through the return oil pipeline, thereby reducing the cost of the oil station.

[0018] 2. When the oil supply at the thin oil station is interrupted, the oil pressure in the high-level oil tank disappears, the float drops with the oil in the shell, the sealing head is driven to open, and the lubricating oil in the high-level oil tank flows to the lubricating parts through the three-valve group by gravity, ensuring that the lubricating parts have lubricating oil, avoiding oil-free operation of the bearings and overheating and burning, protecting the equipment and increasing the service life of the equipment.

[0019] 3. The ventilation elbow of the utility model is hook-shaped, and the ventilation port faces downward, so as to prevent dust from falling into the ventilation elbow and into the oil, thereby affecting the lubrication effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural diagram of the utility model.

[0021] Figure 2 This is a schematic diagram of installing a self-sealing valve on a high-position oil tank of the utility model.

[0022] Figure 3 This is a structural diagram of the sealing head of the utility model.

[0023] Figure 4 This is a structural diagram of the ventilation elbow on the cone valve body of the utility model.

[0024] Figure 5 It is a schematic diagram of the internal thread on the top cover of the shell of the utility model.

[0025] Figure 6 This is a working schematic diagram of the self-sealing valve of the utility model.

[0026] Figure number: 1. High-position oil tank, 2. Three-valve group, 3. Thin oil station, 4. Oil port, 5. Oil supply pipeline, 6. Oil return pipeline, 7. Lubrication part, 8. Bolt, 9. Self-sealing valve, 10. Flow channel hole, 11. Sealing groove, 12. Shell, 13. Float, 14. Conical valve stem, 15. Conical valve body, 16. Ventilation elbow, 17. Screw hole, 18. Sealing ring I, 19. Annular groove, 20. Sealing head, 21. Internal thread, 22. External thread, 23. Sealing ring II, 24. Through hole, 25. Cavity. DETAILED DESCRIPTION

[0027] like Figure 1 As shown, a self-sealing high-position oil tank comprises a high-position oil tank 1, a three-valve group 2 and a thin oil station 3. An oil port 4 is provided at the bottom of the high-position oil tank 1, and the oil port 4 is connected to the thin oil station 3 through an oil supply pipeline 5, and the three-valve group 2 is provided on the oil supply pipeline 5. A self-sealing valve 9 is installed on the top of the high-position oil tank 1, and the self-sealing valve 9 is connected to the high-position oil tank 1 through a flow channel hole 10.

[0028] like Figure 2As shown, the self-sealing valve 9 is assembled by a housing 12, a float 13, a cone valve stem 14, a cone valve body 15 and a vent elbow 16. A screw hole 17 is provided on the inner bottom plate of the housing 12, and the cone valve stem 14 is fixedly installed in the screw hole 17. A through hole 24 is opened on the inner bottom plate, and the through hole 24 is connected to the flow channel hole 10. A float 13 is sleeved on the cone valve stem 14, and a sealing head 20 is provided on the head of the cone valve stem 14. The sealing head 20 is placed in a cavity 25 at the bottom of the cone valve body 15, and the cone valve body 15 is arranged on the top cover of the housing 12; a vent elbow 16 is fixedly installed on the upper end of the cone valve body 15. The vent elbow 16 is connected to the cavity 25 through the through hole in the cone valve body 15. In the present application, a self-sealing valve 9 is arranged on the high-level oil tank 1, and the float 13 of the self-sealing valve 9 is driven to rise and fall by the oil entering the housing 12. The float 13 rises and drives the sealing head 20 to close, so that the oil supply to the high-level oil tank 1 stops when the oil is full. There is no need to return the oil to the thin oil station 3 through the return oil pipeline, which reduces the cost of the oil station. When the oil supply of the thin oil station 3 is interrupted, the oil pressure in the high-level oil tank 1 disappears, and the float 13 drops with the oil in the shell 12, driving the sealing head 20 to open. The lubricating oil in the high-level oil tank 1 flows to the lubricating parts through the three-valve group 2 under the action of gravity, ensuring that the lubricating parts have lubricating oil, avoiding oil-free operation of the bearing, overheating and burning, protecting the equipment, and increasing the service life of the equipment.

[0029] Mounting plates are arranged around the outer bottom of the housing 12, screw holes are provided on the mounting plates, and self-sealing valve 9 is installed on the top of the high-position oil tank 1 through bolts 8. The top of the high-position oil tank 1 is connected to the self-sealing valve 9 through bolts 8, which is convenient for obtaining materials and simple to assemble. A sealing groove 11 is arranged at the bottom of the housing 12, and a sealing ring II 23 is arranged in the sealing groove 11. The joint surface between the housing 12 and the high-position oil tank 1 is sealed by the sealing ring II 23, which increases the sealing effect of the self-sealing valve 9 and ensures the lifting effect of the float 12.

[0030] like Figure 3 As shown, an annular groove 19 is provided on the sealing head 20, and a sealing ring I 18 is provided in the annular groove 19.

[0031] like Figure 4 As shown, the vent pipe 16 is hook-shaped, and the vent port faces downwards, so as to prevent dust from falling into the vent pipe 16 and into the oil, thereby affecting the lubrication effect.

[0032] like Figure 5 As shown, the top cover of the housing 12 is provided with an internal thread 21. The cone valve body 15 is provided with an external thread 22. The cone valve body 15 is directly screwed on the top cover, and the installation is simple.

[0033] During operation, the pressure oil supplied from the thin oil station 3 enters the high-position oil tank 1 through the oil supply pipeline 5. When the high-position oil tank 1 is filled with oil, the oil passes through the flow channel hole 10 at the top of the high oil tank 1 and enters the self-sealing valve 9 through the through hole 24. The float 13 in the self-sealing valve 9 drives the cone valve stem 14 to rise under the action of the buoyancy of the oil. When the cone surface of the cone valve stem 14 is completely in contact with the inner cone surface of the cone valve body 15, the sealing ring I 18 completely blocks the gap between the two cone surfaces, and the self-sealing valve 9 is closed. Figure 6 , the oil filling process of the high-level oil tank 1 is completed. At this time, a small amount of air is sealed and pressurized at the top of the self-sealing valve 9 (consistent with the oil pressure in the high-level oil tank 1).

[0034] When the oil supply of the thin oil station 3 is interrupted, the oil supply cannot be normal, the oil pressure from the oil supply pipeline 5 of the high-level oil tank 1 disappears, and the oil begins to flow downward under the action of gravity and the compressed air at the top of the self-sealing valve 9. When the oil in the self-sealing valve 9 begins to drop, the float 13 drops with the liquid level, and a gap appears on the sealing surface between the cone valve body 15 and the cone valve stem 14. External air enters the self-sealing valve 9 from the gap, that is, the high-level oil tank 1 is connected to the atmosphere, and the self-sealing valve 9 is opened. The oil in the high-level oil tank 1 flows to the lubrication part through the three-valve group 2 under the action of gravity.

[0035] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been demonstrated and explained in the embodiments. Without departing from the principles, the embodiments of the present invention may be deformed or modified in any way.

Claims

1. A self-sealing high-position oil tank, comprising a high-position oil tank (1), a three-valve group (2) and a dilution oil station (3), wherein an oil through hole (4) is provided at the bottom of the high-position oil tank (1), the oil through hole (4) is connected to the dilution oil station (3) through an oil supply pipeline (5), and the three-valve group (2) is provided on the oil supply pipeline (5), characterized in that: A self-sealing valve (9) is installed on the top of the high-position oil tank (1), and the self-sealing valve (9) is connected to the high-position oil tank (1) through a flow channel hole (10); the self-sealing valve (9) is assembled from a housing (12), a float (13), a cone valve stem (14), a cone valve body (15) and a vent elbow (16); a cone valve stem (14) is fixedly installed on the inner bottom plate of the housing (12), the float (13) is sleeved on the cone valve stem (14), a sealing head (20) is provided at the head of the cone valve stem (14), a sealing ring I (18) is provided in an annular groove (19) on the sealing head (20), the sealing head (20) is placed in a cavity (25) at the bottom of the cone valve body (15), and the cone valve body (15) is arranged on a top cover of the housing (12); a vent elbow (16) is fixedly installed at the upper end of the cone valve body (15).

2. A self-sealing high-level oil tank according to claim 1, characterized in that: The outer bottom of the housing (12) is provided with mounting plates around its periphery, the mounting plates are provided with screw holes, and a self-sealing valve (9) is mounted on the top of the high-position oil tank (1) via bolts (8).

3. A self-sealing high-level oil tank according to claim 1, characterized in that: The vent elbow (16) is in the shape of a hook, with the vent opening facing downward.

4. A self-sealing high-level oil tank according to claim 1, characterized in that: An internal thread (21) is provided on the top cover of the housing (12), and an external thread (22) is provided on the cone valve body (15).

5. A self-sealing high-position oil tank according to claim 1, characterized in that: A sealing groove (11) is provided at the bottom of the housing (12), and a sealing ring II (23) is provided in the sealing groove (11).

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