Residual oil extraction device of hydraulic pump

Abstract

The utility model discloses a hydraulic pump residual oil extraction device which comprises a shell, a display screen is arranged in the middle of the front face of the shell, a containing groove is formed in the bottom of one side of the shell, a folding tray is hinged to the bottom of the containing groove, a bottle body folding frame is hinged to the top of the containing groove, and an oil storage bottle is placed on the top of the folding tray. A first groove is formed in the side, close to the containing groove, of the shell, an exhaust port is formed in one side of the first groove, a second groove is formed in the other side of the shell, an air inlet is formed in the middle of the second groove, a control panel is installed on the front face of the inner wall of the shell, a storage battery is arranged at one corner of the inner wall of the shell, and a direct-current switch is arranged on the side, close to the storage battery, in the shell. According to the hydraulic pump residual oil extraction device, residual oil can be conveniently extracted from a spline shaft groove of a liquid pump through the whole hydraulic pump residual oil extraction device, and pollution caused by the fact that the residual oil flows into a speed reducer through a spline shaft center hole is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to hydraulic pump field, concretely is a kind of hydraulic pump residual oil extraction device. BACKGROUND

[0002] Hydraulic pump is driven by connecting the reducer of engine, and mechanical energy is converted into hydraulic energy, when connecting, the spline shaft of hydraulic pump is inserted in spline groove of reducer, and the reducer connected with engine drives hydraulic pump to suck oil from hydraulic oil tank, forms pressure oil discharge, and sends to execution element to form power, residual oil generated in the working process of hydraulic pump will be collected in the residual oil groove around spline shaft, when spline shaft is pulled out from spline shaft center hole, residual oil in residual oil groove will flow into reducer through spline shaft center hole, and pollute internal sliding oil of reducer. UTILITY MODEL CONTENT

[0003] The utility model aims at providing a kind of hydraulic pump residual oil extraction device to solve the problems raised in the above background.

[0004] To achieve the above object, the utility model provides the following technical scheme: a kind of hydraulic pump residual oil extraction device, including shell, the middle part of the front of the shell is equipped with display screen, the top of the shell is connected with upper cover, the bottom of the one side of the shell is equipped with receiving groove, the bottom of the receiving groove is hinged with folding tray, the top of the receiving groove is hinged with bottle body folding frame, the top of the folding tray is placed with oil storage bottle, the side of the shell close to receiving groove is equipped with first recess, the side of the first recess is equipped with exhaust port, the other side of the first recess is equipped with charging port, the other side of the shell is equipped with second recess, the middle part of the second recess is equipped with air inlet, the front of the inner wall of the shell is installed with control panel, the corner of the inner wall of the shell is equipped with battery, the side of the inside of the shell close to battery is equipped with direct-current switch, the side of the inner wall of the shell is equipped with two-way valve, the middle part of the inner wall of the shell is installed with air pump, the back of the inner wall of the shell is installed with filter, the back of the inner wall of the shell close to air pump is installed with support, the middle part of the support is installed with cooling fan, the periphery of the bottom of the shell close to air pump is equipped with a plurality of heat dissipation holes.

[0005] Preferably, the top of the upper cover is equipped with handle, the edge corner of the bottom of the shell is equipped with support block, the side of the front of the shell is equipped with power key, the side of the front of the shell close to power key is equipped with start key, the other side of the front of the shell is equipped with the adjusting knob for speed regulation of air pump.

[0006] Preferably, the filter has a first air pipe connected to its input end, which is connected to an air inlet. A flexible tube is connected to the middle of the air inlet. The filter has a valve vent pipe connected to its output end, which is connected to one end of a two-way valve. The other end of the two-way valve is connected to the input end of an air pump via a connecting pipe. The air pump has a second air pipe connected to its output end, which is connected to an exhaust port via a two-way valve. The oil storage bottle has an input port on one side of its top and an output port on the other side of its top.

[0007] Preferably, the back of the housing is provided with a third groove, the filter extends into the interior of the housing, and the bottom of the filter is provided with a removable filter element, which facilitates the cleaning of impurities filtered by the filter.

[0008] Compared with the prior art, the beneficial effects of this utility model are:

[0009] During operation, the air pump generates negative pressure through the two-way valve, valve vent pipe, filter, and air inlet. Under the action of negative pressure, the oil in the residual oil tank is drawn into the oil storage bottle through the thin tube for storage. During the air pump's suction process, the air is filtered through the filter, and the operating end of the two-way valve extends into the interior of the first groove. By adjusting the two-way valve, the direction of air inlet and outlet can be changed, facilitating bidirectional oil extraction. The entire device facilitates the extraction of residual oil from the spline shaft groove of the liquid pump, preventing residual oil from flowing into the reducer through the spline shaft center hole, thereby avoiding contamination of the reducer's internal lubricating oil. Attached Figure Description

[0010] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0011] Figure 2 This is an internal top view of the present invention;

[0012] Figure 3 This is a schematic diagram of the left side structure of this utility model;

[0013] Figure 4 This is a structural view of the back of the present invention;

[0014] Figure 5 This is a schematic diagram of the air circuit connection of this utility model;

[0015] Figure 6 This is the electrical connection diagram of this utility model.

[0016] In the diagram: 1. Shell; 2. Top cover; 3. Display screen; 4. Power button; 5. Start button; 6. Storage slot; 7. Bottle folding rack; 8. Folding tray; 9. Oil reservoir; 10. First recess; 11. Exhaust port; 12. Handle; 13. Control panel; 14. Air pump; 15. Battery; 16. DC switch; 17. Two-way valve; 18. Filter; 19. Second recess; 20. Air inlet; 21. Hose; 22. Third recess; 23. Removable filter element; 24. First air pipe; 25. Valve vent pipe; 26. Second air pipe; 27. Charging port; 28. Bracket; 29. ​​Cooling fan; 30. Heat dissipation hole. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figures 1-6 This utility model provides a hydraulic pump residual oil extraction device, including a housing 1. A display screen 3 is provided in the center of the front of the housing 1. A top cover 2 is connected to the top of the housing 1. A storage groove 6 is provided at the bottom of one side of the housing 1. A folding tray 8 is hinged to the bottom of the storage groove 6. A bottle folding frame 7 is hinged to the top of the storage groove 6. An oil storage bottle 9 is placed on the top of the folding tray 8. A first groove 10 is provided on the side of the housing 1 near the storage groove 6. An exhaust port 11 is provided on one side of the first groove 10. A charging port 27 is provided on the other side of the first groove 10. A second groove 19 is provided on the other side of the housing 1. An air inlet 20 is provided in the center of the second groove 19. The inner wall of the housing 1 is... A control board 13 is installed on the surface of the housing 1. A battery 15 is installed in one corner of the inner wall of the housing 1. A DC switch 16 is installed on the side of the housing 1 near the battery 15. A two-way valve 17 is installed on one side of the inner wall of the housing 1. An air pump 14 is installed in the middle of the inner wall of the housing 1. A filter 18 is installed on the back of the inner wall of the housing 1. A bracket 28 is installed on the back of the inner wall of the housing 1 near the air pump 14. A cooling fan 29 is installed in the middle of the bracket 28. Several heat dissipation holes 30 are provided around the bottom of the housing 1 near the air pump 14. During use, the air pump 14 generates heat. Activating the cooling fan 29 can blow air onto the air pump 14 to dissipate heat and extend the service life of the air pump 14.

[0019] See Figures 1-4The top of the cover 2 is provided with a handle 12, and the bottom corners of the housing 1 are provided with support blocks. A power button 4 is provided on one side of the front of the housing 1, and a start button 5 is provided on the side of the front of the housing 1 near the power button 4. An adjustment knob for adjusting the speed of the air pump 14 is provided on the other side of the front of the housing 1. The speed of the pump is controlled by adjusting the knob. Specifically, the knob is connected to a variable resistor (potentiometer). By rotating the knob, the resistance value can be changed to adjust the input voltage or current of the pump. The control circuit (such as a speed controller or frequency converter) adjusts the speed of the air pump 14 according to the voltage signal.

[0020] In this embodiment, the DC switch 16 is model BF030 and is electrically connected to the battery 15. The display screen 3, power button 4, start button 5, adjustment knob and air pump 14 are all electrically connected to the control board 13. The control board 13 is electrically connected to the battery 15. The power supply status of the control board 13 is detected by the DC switch 16. The battery 15 is a rechargeable lithium battery. The air pump 14 is model BF-03 and the display screen 3 is model DMG80480S050.

[0021] See Figures 1-6 The input end of the filter 18 is connected to the first air pipe 24, which is connected to the air inlet 20. The middle of the air inlet 20 is connected to the flexible hose 21. The output end of the filter 18 is connected to the valve vent pipe 25, which is connected to one end of the two-way valve 17. The other end of the two-way valve 17 is connected to the input end of the air pump 14 through a connecting pipe. The output end of the air pump 14 is connected to the second air pipe 26, which is connected to the exhaust port 11 through the two-way valve 17.

[0022] In this embodiment, the air pump 14 is started and works. The air pump 14 generates negative pressure to draw air through the two-way valve 17, valve vent pipe 25, filter 18 and air inlet 20. Under the action of negative pressure, the oil in the residual oil tank is drawn into the oil storage bottle 9 through the thin tube for storage. During the air pump 14's air intake process, the air will be filtered through the filter 18. The removable filter element 23 of the filter 18 can be disassembled for cleaning and replacement.

[0023] See Figures 1-4 An inlet is provided on one side of the top of the oil storage bottle 9, and an outlet is provided on the other side of the top of the oil storage bottle 9. A third groove 22 is provided on the back of the housing 1. The filter 18 extends into the interior of the housing 1, and a removable filter element 23 is provided at the bottom of the filter 18.

[0024] In practical use, this utility model's hydraulic pump residual oil extraction device involves removing the oil storage bottle 9 and placing it on one side of the air inlet 20. One end of the hose 21 is connected to an output port on the top of the oil storage bottle 9. The input port of the oil storage bottle 9 is connected to the oil tank of the hydraulic pump via a connecting thin tube and adapter. After power is connected, the air pump 14 is started. The air pump 14 generates negative pressure through the two-way valve 17, valve vent pipe 25, filter 18, and air inlet 20. Under the action of negative pressure, the oil in the residual oil tank is drawn into the oil storage bottle 9 through the thin tube for storage. During the air pump 14's suction process, the air is filtered through the filter 18. The removable filter element 23 of the filter 18 can be disassembled for cleaning and replacement. The operating end of the two-way valve 17 extends into the interior of the first groove 10. By adjusting the two-way valve 17, the direction of air inlet and outlet can be changed. Figure 5 When the two-way valve 17 is pulled upward, AR and BP are connected, and the air inlet draws air while the air outlet exhausts air. When the two-way valve 17 is pulled downward, AP and BS are connected, and the air inlet exhausts air while the air outlet is switched to air inlet. This facilitates bidirectional oil circuit extraction and drainage. The entire device facilitates the extraction of residual oil from the spline shaft groove of the liquid pump, preventing residual oil from flowing into the reducer through the spline shaft center hole, thereby avoiding contamination of the reducer's internal lubricating oil.

[0025] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A hydraulic pump residual oil extraction device comprising a housing (1), characterized in that: The middle part of the front of the shell (1) is provided with a display screen (3), the top of the shell (1) is connected with an upper cover (2), the bottom of one side of the shell (1) is provided with a receiving groove (6), the bottom of the receiving groove (6) is hingedly connected with a folding tray (8), the top of the receiving groove (6) is hingedly connected with a bottle folding rack (7), the top of the folding tray (8) is placed with an oil storage bottle (9), one side of the shell (1) close to the receiving groove (6) is provided with a first groove (10), one side of the first groove (10) is provided with an exhaust port (11), the other side of the first groove (10) is provided with a charging port (27), the other side of the shell (1) is provided with a second groove (19), the middle part of the second groove (19) is provided with an air inlet (20), the front of the inner wall of the shell (1) is mounted with a control panel (13), one corner of the inner wall of the shell (1) is provided with a storage battery (15), one side of the inside of the shell (1) close to the storage battery (15) is provided with a direct current switch (16), one side of the inner wall of the shell (1) is provided with a two-way valve (17), the middle part of the inner wall of the shell (1) is mounted with an air pump (14), the back of the inner wall of the shell (1) is mounted with a filter (18), the back of the inner wall of the shell (1) close to the air pump (14) is mounted with a support (28), the middle part of the support (28) is mounted with a cooling fan (29), the bottom of the shell (1) close to the air pump (14) is provided with a plurality of heat dissipation holes (30).

2. A hydraulic pump residual oil extraction device according to claim 1, characterized in that: The top of the upper cover (2) is provided with a handle (12), and the corners of the bottom of the shell (1) are all provided with supporting blocks.

3. The hydraulic pump residual oil extraction device of claim 1, wherein: One side of the front of the shell (1) is provided with a power key (4), one side of the front of the shell (1) close to the power key (4) is provided with a starting key (5), and the other side of the front of the shell (1) is provided with an adjusting knob for adjusting the speed of the air pump (14).

4. The hydraulic pump residual oil extraction device of claim 1, wherein: The input end of the filter (18) is communicated with a first air pipe (24), the first air pipe (24) is communicated with the air inlet (20), and the middle part of the air inlet (20) is communicated with a hose (21).

5. The hydraulic pump residual oil extraction device of claim 1, wherein: The output end of the filter (18) is communicated with a valve air pipe (25), one end of the valve air pipe (25) is communicated with the two-way valve (17), the other end of the two-way valve (17) is communicated with the input end of the air pump (14) through a connecting pipe, the output end of the air pump (14) is communicated with a second air pipe (26), and the second air pipe (26) is communicated with the exhaust port (11) through the two-way valve (17).

6. A hydraulic pump residual oil extraction device according to claim 1, characterized in that: One side of the top of the oil storage bottle (9) is provided with an input port, and the other side of the top of the oil storage bottle (9) is provided with an output port.

7. The hydraulic pump residual oil extraction device of claim 1, wherein: The back of the shell (1) is provided with a third groove (22), the filter (18) extends to the inside of the shell (1), and the bottom of the filter (18) is provided with a detachable filter element (23).

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