High-density lubricating grease filling system

Abstract

The invention discloses a high-density lubricating grease filling system, which relates to the technical field of machine manufacturing, and comprises a hydraulic pump source assembly, a hydraulic execution assembly, a high-density lubricating grease storage device, a split charging tool end, pipelines among parts, electric control and cables, which are integrated into an organic system. According to the high-density lubricating grease filling system, the filling system high in universality is provided, conveying or split charging of semi-fluid media in a wide density range is met, and the system is high in automation degree, capable of saving energy, environmentally friendly, compact in structure, simplified to control, small in occupied space, reliable in performance and capable of meeting the split charging and filling requirements of high-density lubricating grease.

Description

Technical Field

[0001] This invention relates to the field of mechanical manufacturing technology, specifically to a high-density lubricating grease filling system. Background Technology

[0002] The common solution for high-viscosity grease delivery systems is to use servo-driven plunger pumps, gear pumps, rotary pumps, or pneumatic piston pumps as power sources for long-distance delivery. The drawback is that these solutions are only suitable for general-purpose lithium-based grease #1. When the medium changes to a higher viscosity general-purpose lithium-based grease #2, a heating / insulation system is required, but these solutions are completely incompatible with higher viscosity general-purpose lithium-based grease #3, molybdenum disulfide grease, and other media.

[0003] Based on the viscosity characteristics of higher viscosity general-purpose lithium-based grease #3 and molybdenum disulfide lubricating grease semi-fluid media, a new method is needed to control them in order to meet the dispensing requirements of these higher viscosity fluid media. Summary of the Invention

[0004] The purpose of this invention is to provide a high-density lubricating grease filling system to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a high-density lubricating grease filling system, including a liquid oil tank, wherein a partition is longitudinally installed on the inner wall of the oil tank, and the partition divides the oil tank into two areas: an oil suction area and an oil return area; An oil pump, wherein a filter is connected to the inlet of the oil pump, and the inlet of the oil pump is connected to the filter through a pipeline; The manifold includes a manifold block, on which a check valve is connected via a pipeline to the outlet of the oil pump. The check valve is mounted on the manifold block in a bottom-to-top order as follows: a one-way throttle valve, a hydraulically controlled check valve, and a directional valve. The storage container is a high-density lubricating grease storage container. A second level gauge is installed inside the storage container. A second air filter is connected to the upper end of the storage container, and a medium filling port is provided at the upper end of the storage container. The hydraulic actuator includes a cylinder, a first check valve, a second check valve, and a cylinder placement tray. The inlet of the first check valve is connected to the C chamber of the cylinder, and the outlet of the first check valve is connected to the sub-assembly terminal of the sub-assembly fixture. The outlet of the second check valve is connected to the cylinder, and the inlet of the second check valve is connected to the bottom end of the storage container. The dispensing tooling end includes an accumulator, a dispensing terminal and a pressure sensor. The accumulator is connected to the dispensing terminal, and the pressure sensor is used to monitor the pressure signal of the dispensing terminal. The medium of the dispensing terminal is supplied from the C chamber of the oil cylinder. After the medium passes through the dispensing terminal, the medium dispensing is completed. The electronic control system is used to control the automatic operation of the system.

[0006] In a further embodiment, a first air filter is installed on the panel of the fuel tank 1 for breathing and filtering air inside and outside the fuel tank.

[0007] In a further embodiment, an electric motor is provided on the side of the oil pump, and the electric motor is connected to the oil pump via a bell-shaped coupling.

[0008] In a further embodiment, the one-way valve outlet is provided with a pressure testing connector and a safety valve, and the pressure testing connector is connected to a pressure testing hose and a pressure gauge.

[0009] In a further embodiment, the dispensing terminal is a plurality of media dispensing terminals.

[0010] Compared with the prior art, the beneficial effects of the present invention are: This invention relates to a high-density lubricating grease filling system, providing a versatile filling system to meet the needs of conveying or dispensing semi-fluid media with a wide density range. The system is highly automated, energy-saving and environmentally friendly, compact in structure, simplified in control, occupies little space, and has reliable performance, meeting the requirements for dispensing and filling high-density lubricating greases. Attached Figure Description

[0011] Figure 1 This is a control principle diagram of an embodiment of the present invention; Figure 2 This is a process flow diagram of an embodiment of the present invention; Figure 3 This is a simplified schematic diagram of the hydraulic actuator component according to an embodiment of the present invention.

[0012] In the diagram: 1. Oil tank; 2. Filter; 3. First air filter; 4. Motor; 5. Bell-shaped coupling; 6. Oil pump; 7. Check valve; 8. Manifold block; 9. Safety valve; 10. Pressure test connector; 11. Pressure test hose; 12. Pressure gauge; 13. Directional valve; 14. Hydraulic check valve; 15. One-way throttle valve; 16. Pipeline; 17. First level gauge; 18. Electrical control; 19. Oil cylinder; 20. First check valve; 21. Second check valve; 22. Dispensing terminal; 23. Pressure sensor; 24. Accumulator; 25. Storage device; 26. Second level gauge; 27. Second air filter. Detailed Implementation

[0013] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0014] This embodiment provides a high-density lubricating grease filling system, such as... Figure 1 and Figure 2 As shown, the system includes an oil tank 1, which serves as a hydraulic oil container and also as a mounting carrier for other components. A first level gauge 17 is installed on the side wall of the oil tank 1. A partition is installed longitudinally on the inner wall of the oil tank 1, dividing the oil tank 1 into two areas: an oil suction area and an oil return area. A first air filter 3 is installed on the panel of the oil tank 1 for internal and external air breathing and filtration.

[0015] It also includes an oil pump 6, with a filter 2 connected to the inlet of the oil pump 6 to protect it. An electric motor 4 is located on the side of the oil pump 6, and the electric motor 4 is connected to the oil pump 6 via a bell-shaped coupling 5. The inlet of the oil pump 6 is connected to the filter 2 via a pipe.

[0016] It also includes a manifold block 8, with a check valve 7 connected to the outlet of the oil pump 6 via a pipe. The check valve 7 is mounted on the manifold block 8. A one-way throttle valve 15, a hydraulically controlled check valve 14, and a directional control valve 13 are installed on the manifold block 8 in a bottom-to-top order. The directional control valve 13 is used to switch the direction of the switching cylinder 19.

[0017] The outlet of the one-way valve 7 is equipped with a pressure test connector 10 and a safety valve 9. The pressure test connector 10 connects to the pressure test hose 11 and the pressure gauge 12 for debugging, testing, and maintenance. The safety valve 9 is used to set the system working pressure and has the function of a safety valve 9.

[0018] It also includes a storage tank 25, which is a high-density lubricating grease storage tank. A second level gauge 26 is installed inside the storage tank 25. A second air filter 27 is connected to the upper end of the storage tank 25, and a medium filling port is provided at the upper end of the storage tank 25.

[0019] It also includes a dispensing fixture, which comprises an accumulator 24, a dispensing terminal 22, and a pressure sensor 23. The accumulator 24 is connected to the dispensing terminal 22, and the pressure sensor 23 is used to monitor the pressure signal of the dispensing terminal 22. The dispensing terminal 22 is the dispensing end for multiple media. The media for the dispensing terminal 22 is supplied from the C chamber of the cylinder 19 of the hydraulic actuator, and the media is dispensed after passing through the dispensing terminal 22.

[0020] The hydraulic actuator assembly includes a cylinder 19, a first check valve 20, a second check valve 21, and a cylinder placement tray. The cylinder 19 is an integrated cylinder. The inlet of the first check valve 20 is connected to chamber C of the cylinder 19, and the outlet of the first check valve 20 is connected to the sub-assembly terminal 22 of the sub-assembly fixture. The outlet of the second check valve 21 is connected to the cylinder 19, and the inlet of the second check valve 21 is connected to the bottom end of the storage container 25.

[0021] The operating principle of hydraulic cylinder 19 is as follows: Figure 3The direction of cylinder 19 is switched by reversing valve 13. The working medium of cylinder 19 is two different media: the working medium of chamber A / B is hydraulic oil, and chambers A / B of cylinder 19 are connected to one-way throttle valve 15 through pipe 16; the working medium of chamber C is high-density lubricating grease; and chamber D is a breather chamber connected to storage tank 25. Chambers A / B are the active chambers, and chambers C / D are the driven chambers. When directional valve 13 is open at P and open at A, and open at T at B (i.e., chamber A supplies oil and chamber B returns oil), the second check valve 21 is closed due to the force on chamber C, and the medium is transported to the dispensing fixture end through the first check valve 20 and stores energy. When directional valve 13 is open at P and open at B, and open at T at A (i.e., chamber B supplies oil and chamber A returns oil), the first check valve 20 is closed due to the vacuum on chamber C, and the medium is transported to chamber C through the second check valve 21. When chamber C is full of medium, directional valve 13 is open at P and open at A, and open at T at B, causing the medium in chamber C to be transported to the dispensing fixture end through the first check valve 20 and store energy. This cycle repeats, realizing the intake and exhaust of the medium in chamber C.

[0022] It also includes electronic control unit 18, which is used to control the automatic operation of the system. Specifically, such as... Figure 1 and Figure 3 As shown, when the equipment is running, the hydraulic system is in a standby no-load state. When the electronic control unit 18 detects that the output of the pressure sensor 23 is lower than the set value (lower limit of the set value), the reversing valve 13 automatically switches and stores energy at the dispensing tool end through the actuator cylinder 19 until the detected energy storage pressure value reaches the upper limit of the set value. After the dispensing tool discharges a quantitative medium through the terminal 22, the energy storage pressure value inside the dispensing tool decreases until the electronic control unit 18 detects that the output of the pressure sensor 23 is lower than the set value again. Then, the reversing valve 13 automatically switches again, and the cycle repeats to realize the automatic operation of the system.

[0023] In summary, this system provides a versatile filling system to meet the needs of conveying or dispensing semi-fluid media with a wide density range (such as semi-fluid culture media, semi-fluid greases, semi-fluid pastes, Wanlingda EP00, general-purpose lithium grease 1#, general-purpose lithium grease 2#, general-purpose lithium grease 3#, molybdenum disulfide grease, etc.). The system is highly automated, energy-saving and environmentally friendly, compact in structure, simplified in control, occupies little space, and has reliable performance, meeting the requirements for dispensing and filling high-density lubricating greases.

[0024] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-density lubricating grease filling system, characterized in that, include: The oil tank (1) has a partition installed longitudinally on the inner wall of the oil tank (1), which divides the oil tank (1) into two areas: an oil suction area and an oil return area. Oil pump (6), the inlet of the oil pump (6) is connected to a filter (2), the inlet of the oil pump (6) is connected to the filter (2) through a pipe (16); The oil manifold (8) has a check valve connected to the outlet of the oil pump (6) via a pipe (16), and the check valve is installed on the oil manifold (8). The oil manifold (8) is equipped with a one-way throttle valve (15), a hydraulic check valve (14), and a reversing valve (13) in the order from bottom to top. Storage (25), storage (25) is a high-density lubricating grease storage (25), a liquid level gauge is installed in the storage (25), a second air filter (27) is connected to the upper end of the storage (25), and a medium filling port is provided at the upper end of the storage (25); The hydraulic actuator includes a cylinder (19), a first check valve (20), a second check valve (21), and a cylinder (19) placement tray. The inlet of the first check valve (20) is connected to the C chamber of the cylinder (19), and the outlet of the first check valve (20) is connected to the sub-assembly terminal (22) of the sub-assembly fixture. The outlet of the second check valve (21) is connected to the cylinder (19), and the inlet of the second check valve (21) is connected to the bottom end of the storage container (25). The dispensing tooling end includes an accumulator (24), a dispensing terminal (22), and a pressure sensor (23). The accumulator (24) is connected to the dispensing terminal (22), and the pressure sensor (23) is used to monitor the pressure signal of the dispensing terminal (22). The medium of the dispensing terminal (22) is supplied from the C chamber of the oil cylinder (19). The medium is dispensed after passing through the dispensing terminal (22). The electronic control (18) is used to control the automatic operation of the system.

2. The high-density lubricating grease filling system according to claim 1, characterized in that, The first air filter (3) is installed on the panel of the oil tank (1) for breathing and filtering air inside and outside the oil tank (1).

3. The high-density lubricating grease filling system according to claim 1, characterized in that, The oil pump (6) is equipped with an electric motor (4) on its side, and the electric motor (4) and the oil pump (6) are connected by a bell-shaped coupling (5).

4. The high-density lubricating grease filling system according to claim 1, characterized in that, The one-way valve outlet is provided with a pressure test connector (10) and a safety valve (9). The pressure test connector (10) is connected to a pressure test hose (11) and a pressure gauge (12).

5. The high-density lubricating grease filling system according to claim 1, characterized in that, The dispensing terminal (22) consists of multiple media dispensing terminals.

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