Oil extraction device for lubricating oil production

Abstract

The utility model relates to an oil extraction device for lubricating oil production, and belongs to the technical field of lubricating oil production. Comprising an oil storage tank and an oil outlet pump, an oil outlet of the oil outlet pump is connected with an oil outlet main pipe, a bypass connector is arranged at the end, close to the oil outlet pump, of the oil outlet main pipe, and an oil taking mechanism is connected behind the bypass connector and can take oil when the oil outlet pump supplies oil normally. The hydraulic cylinder has the advantages that the third stop valve is opened, the compressed compression spring can push the first piston to the right side, oil in a rod cavity of the first piston cylinder can enter a rodless cavity of the first piston cylinder through the oil hole, the first piston pushes the second piston to move rightwards while moving, and the second piston is pushed to move rightwards. The second piston discharges oil in the rodless cavity of the second piston cylinder into the receiving container through the oil taking pipe, quantitative oil taking is achieved, sampling of lubricating oil can be completed by one person, and time and labor are saved.

Description

Technical Field

[0001] The utility model relates to an oil extraction device for lubricating oil production, belonging to the technical field of lubricating oil production. Background Art

[0002] Lubricating oil is a liquid or semi-solid lubricant used in various types of automobiles and mechanical equipment to reduce friction and protect machinery and processed parts. It is generally composed of two parts: base oil and additives. Lubricating oil is a technology-intensive product and a complex hydrocarbon. It mainly plays the role of lubrication, cooling, rust prevention, cleaning, sealing and buffering. In the production process of lubricating oil, sampling is a crucial quality control step. By sampling the lubricating oil in the production process, the quality of the lubricating oil can be checked in real time. Sampling can check the viscosity, color, odor, impurity content and other important indicators of the lubricating oil. At the same time, sampling inspection can help ensure the consistency of each batch of lubricating oil products. By comparing the characteristics of different batches of lubricating oil, the stability and consistency of the production process can be evaluated, thereby ensuring the long-term quality of the product. In addition, if there are potential problems in the production process, sampling can be used to detect and take corresponding corrective measures in a timely manner.

[0003] The utility model with patent number CN202321597611.X discloses a convenient sampling mechanism for a mixing tank. It includes a tank body, a sealing plate, a motor, and a mixing mechanism. Several sampling tubes are arranged on the side of the tank body, and a sampling port is arranged at the bottom of the sampling tube. Several spaced sealing rings and their pull rods are arranged inside the sampling tube. After the pull rod penetrates the sealing ring, it drives it to move across the sampling port, and the area between the multiple sealing rings forms a labyrinth seal. The sealing effect of the mechanism is good, and the lubricating oil will not leak; and the pull rod is easy to move. After the pull rod moves to the outer end, the lubricating oil is directly discharged, and sampling is convenient.

[0004] The utility model with patent number CN201920035219.3 discloses an oil extraction device for lubricating oil production. It includes a base, on the top of which a water pump, a support column and a bottom plate are fixedly installed in sequence from left to right, the left side of the top of the water pump is connected to an oil inlet pipe with one end extending to the left side of the water pump, the left side of the top of the oil inlet pipe is connected to a connecting pipe, the left and right sides of the connecting pipe are provided with threaded holes, and the left and right sides of the inner cavity of the connecting pipe are fixedly installed with sealing plugs located on the opposite side of the threaded holes.

[0005] Although the above patent can realize the oil extraction function, the current technical considerations are not comprehensive and have the following disadvantages: 1. During the use of the existing oil extraction device, most of the oil extraction devices are not convenient for adjusting the oil output, resulting in excessive or insufficient oil extraction. 2. Traditional sampling devices mostly use motors, vacuum pumps and other devices, which are not only energy-consuming, polluting and expensive, but also very troublesome to operate, and are not suitable for some simple lubricating oil sampling and testing.

[0006] To solve one of the above problems, there is an urgent need for an oil extraction device for lubricating oil production. Utility Model Content

[0007] Based on the above deficiencies in the prior art, the technical problem to be solved by the present utility model is: how to achieve oil extraction when the oil outlet pump is supplying oil normally. For this purpose, an oil extraction device for lubricating oil production is provided.

[0008] The oil extraction device for lubricating oil production described in the present utility model includes an oil storage tank and an oil outlet pump. The oil outlet of the oil outlet pump is connected to an oil outlet main pipe. It is characterized in that: one end of the oil outlet main pipe close to the oil outlet pump has a bypass joint, and a take - oil mechanism is connected after the bypass joint, which can take oil when the oil outlet pump is supplying oil normally.

[0009] Preferably, the take - oil mechanism includes a support frame fixed on the outer wall of the oil storage tank. A first piston cylinder and a second piston cylinder are symmetrically installed on the support frame. A first piston and a second piston are respectively installed inside the first piston cylinder and the second piston cylinder. The piston rod A on the first piston and the piston rod B on the second piston are connected to form a combined piston rod. A central oil - through hole is provided in the center of the combined piston rod. The central oil - through hole communicates with the rodless chambers of the first piston cylinder and the second piston cylinder. A check valve is installed at the right end of the central oil - through hole, and the check valve restricts the one - way entry of oil into the rodless chamber of the second piston cylinder. A compression spring is provided between the rear cylinder head of the first piston cylinder and the first piston. A bypass inlet pipe communicating with the rod - end chamber of the first piston cylinder is installed on the front cylinder head of the first piston cylinder. The other end of the bypass inlet pipe is connected to the bypass joint. A fourth stop valve is installed on the bypass inlet pipe. A bypass outlet pipe communicating with the rodless chamber of the first piston cylinder is installed on the rear cylinder head of the first piston cylinder. The other end of the bypass outlet pipe merges with the oil outlet main pipe. A first stop valve and a second stop valve are respectively installed on the oil outlet main pipe and the bypass outlet pipe. An oil - through hole communicating the rod - end chamber and the rodless chamber of the first piston cylinder is provided on the first piston. A take - oil pipe communicating with the rodless chamber of the second piston cylinder is installed on the rear cylinder head of the second piston cylinder. A third stop valve is installed on the take - oil pipe. A receiving container for receiving the oil discharged from the take - oil pipe is provided below the other end of the take - oil pipe.

[0010] This device can be used when the oil outlet pump is in the open state. When oil needs to be taken, directly open the second stop valve and the fourth stop valve, and adjust the opening degree of the first stop valve to a smaller value. A part of the oil pumped out by the oil outlet pump will be diverted through the bypass joint and flow into the rod chamber of the first piston cylinder through the bypass inlet oil pipe. The oil in the rod chamber of the first piston cylinder can enter the rodless chamber of the first piston cylinder through the oil hole. At the same time, the oil will also push the first piston to move leftward against the thrust of the compression spring. The first piston pulls the second piston to move leftward through the combined piston rod. The oil entering the rodless chamber of the first piston cylinder will enter the rodless chamber of the second piston cylinder through the central oil passage hole and will also be partially discharged through the bypass outlet oil pipe. When the first piston moves to the left position, close the second stop valve and the fourth stop valve, and open the first stop valve, then it is okay.

[0011] When taking oil, open the third stop valve. The compressed compression spring will push the first piston to the right. The oil in the rod chamber of the first piston cylinder will enter the rodless chamber of the first piston cylinder through the oil hole. While the first piston is moving, it will push the second piston to move rightward. The second piston will discharge the oil in the rodless chamber of the second piston cylinder into the receiving container through the oil taking pipe, realizing quantitative oil taking.

[0012] Since there will be the same oil as the previous oil taking remaining in the first piston cylinder, each oil taking is the oil remaining from the previous time. By repeating the above steps, oil can be taken multiple times, and the oil from different periods can be taken for comparison.

[0013] Preferably, an air inlet and outlet pipe connected to the rod chamber of the second piston cylinder is installed on the outer wall of the second piston cylinder.

[0014] Preferably, the first stop valve, the second stop valve, the third stop valve, and the fourth stop valve are all manual ball valves.

[0015] Preferably, multiple groups of oil passing holes are distributed in a circular array around the center line of the first piston.

[0016] Preferably, the cross-sectional area of the pipe material of the bypass inlet oil pipe is larger than the sum of the cross-sectional areas of multiple groups of oil passing holes, so that when the oil enters the rod chamber of the first piston cylinder, it can not only ensure that the first piston is pushed to compress the compression spring to move, but also the oil can flow from the rod chamber of the first piston cylinder into its rodless chamber.

[0017] Preferably, the oil outlet pump is a gear pump or a peristaltic pump.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] For the oil extraction device used in lubricating oil production of the present utility model, when the third stop valve is opened, the compressed compression spring will push the first piston to the right. The oil in the rod chamber of the first piston cylinder will enter the rodless chamber of the first piston cylinder through the oil hole. While the first piston is moving, it will push the second piston to the right. The second piston will discharge the oil in the rodless chamber of the second piston cylinder into the receiving container through the oil extraction pipe, realizing quantitative oil extraction. A single person can complete the sampling of lubricating oil, saving time and effort.

[0020] For the oil extraction device used in lubricating oil production of the present utility model, an existing oil pump is used as the power, and the rest of the operations are completely manual, making the device green, environmentally friendly and pollution-free. At the same time, its structure is simple and the price is low, so its practicability is very strong.

[0021] For the oil extraction device used in lubricating oil production of the present utility model, since the same oil as the previous oil extraction will remain in the first piston cylinder, each oil extraction is the residual oil from the previous time. By repeating the above steps, oil can be extracted multiple times, and the oil at different times can be obtained for easy comparison. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0023] Figure 1 It is the overall view of the present utility model;

[0024] Figure 2 It is the partial structural schematic diagram of the present utility model;

[0025] Figure 3 It is the internal structural schematic diagram of the first piston cylinder and the second piston cylinder of the present utility model;

[0026] In the figure: 1. Oil storage tank; 2. Oil pump; 3. Main oil outlet pipe; 4. Bypass joint; 5. First stop valve; 6. Second stop valve; 7. First piston cylinder; 8. First piston; 9. Compression spring; 10. Second piston cylinder; 11. Second piston; 12. Combined piston rod; 13. Central oil through hole; 14. Oil through hole; 15. Bypass inlet pipe; 16. Bypass outlet pipe; 17. Support frame; 18. Oil extraction pipe; 19. Third stop valve; 20. Receiving container; 21. Check valve; 22. Fourth stop valve. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] The present utility model will be further described below in conjunction with the accompanying drawings: The following further illustrates the present utility model through specific embodiments, but it is not used to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present utility model.

[0028] Embodiment 1, as Figures 1-3 shown, the oil extraction device for lubricating oil production, an oil extraction device for lubricating oil production, includes an oil storage tank 1 and an oil outlet pump 2. The oil outlet of the oil outlet pump 2 is connected to an oil outlet main pipe 3. One end of the oil outlet main pipe 3 close to the oil outlet pump 2 has a bypass joint 4, and the bypass joint 4 is connected to an oil extraction mechanism, which can quantitatively extract oil when the oil outlet pump 2 supplies oil normally. The oil extraction mechanism includes a support frame 17 fixed on the outer wall of the oil storage tank 1. A first piston cylinder 7 and a second piston cylinder 10 are symmetrically installed on the support frame 17. A first piston 8 and a second piston 11 are respectively installed inside the first piston cylinder 7 and the second piston cylinder 10. A piston rod A on the first piston 8 and a piston rod B on the second piston 11 are connected to form a combined piston rod 12. A central oil passage hole 13 is provided at the center of the combined piston rod 12. The central oil passage hole 13 communicates with the rodless chambers of the first piston cylinder 7 and the second piston cylinder 10. A one-way valve 21 is installed at the right end of the central oil passage hole 13. The one-way valve 21 restricts the one-way entry of oil into the rodless chamber of the second piston cylinder 10. A compression spring 9 is provided between the rear cylinder cover of the first piston cylinder 7 and the first piston 8. A bypass inlet pipe 15 communicating with the rod chamber of the first piston cylinder 7 is installed on the front cylinder cover of the first piston cylinder 7. The other end of the bypass inlet pipe 15 is connected to the bypass joint 4. A fourth stop valve 22 is installed on the bypass inlet pipe 15. A bypass outlet pipe 16 communicating with the rodless chamber of the first piston cylinder 7 is installed on the rear cylinder cover of the first piston cylinder 7. The other end of the bypass outlet pipe 16 merges with the oil outlet main pipe 3. A first stop valve 5 and a second stop valve 6 are respectively installed on the oil outlet main pipe 3 and the bypass outlet pipe 16. An oil passage hole 14 communicating the rod chamber and the rodless chamber of the first piston cylinder 7 is provided on the first piston 8. An oil extraction pipe 18 communicating with the rodless chamber of the second piston cylinder 10 is installed on the rear cylinder cover of the second piston cylinder 10. A third stop valve 19 is installed on the oil extraction pipe 18. A receiving container 20 for receiving the oil discharged from the oil extraction pipe 18 is provided below the other end of the oil extraction pipe 18.

[0029] This device can be used when the oil outlet pump 2 is in the open state. When oil needs to be taken, directly open the second stop valve 6 and the fourth stop valve 22, and adjust the opening degree of the first stop valve 5 to be smaller. A part of the oil pumped out by the oil outlet pump 2 will be shunted through the bypass joint 4 and flow into the rod chamber of the first piston cylinder 7 through the bypass inlet oil pipe 15. The oil in the rod chamber of the first piston cylinder 7 can enter the rodless chamber of the first piston cylinder 7 through the oil hole 14. At the same time, the oil will also push the first piston 8 to move leftward against the thrust of the compression spring 9. The first piston 8 pulls the second piston 11 to move leftward through the combined piston rod 12. The oil that enters the rodless chamber of the first piston cylinder 7 will enter the rodless chamber of the second piston cylinder 10 through the central oil passage hole 13 and will also be partially discharged through the bypass outlet oil pipe 16. When the first piston 8 reaches the left position, close the second stop valve 6 and the fourth stop valve 22, and open the first stop valve 5, and that's it.

[0030] When taking oil, open the third stop valve 19. The compressed compression spring 9 will push the first piston 8 to the right. The oil in the rod chamber of the first piston cylinder 7 will enter the rodless chamber of the first piston cylinder 7 through the oil hole 14. While the first piston 8 is moving, it pushes the second piston 11 to move rightward. The second piston 11 discharges the oil in the rodless chamber of the second piston cylinder 10 into the receiving container 20 through the oil taking pipe 18.

[0031] Since the same oil as the previous oil taking will remain in the first piston cylinder 7, each oil taking is the oil remaining from the previous time. By repeating the above steps, oil can be taken multiple times, and the oil from different periods can be taken for comparison.

[0032] Example 2, as Figures 1-2As shown in the figure, a device for extracting oil for lubricating oil production, a device for extracting oil for lubricating oil production, includes an oil storage tank 1 and an oil outlet pump 2. The oil outlet of the oil outlet pump 2 is connected to an oil outlet main pipe 3. One end of the oil outlet main pipe 3 close to the oil outlet pump 2 has a bypass joint 4, and the bypass joint 4 is connected to an oil extraction mechanism, which can quantitatively extract oil when the oil outlet pump 2 supplies oil normally. The oil extraction mechanism includes a support frame 17 fixed on the outer wall of the oil storage tank 1. A first piston cylinder 7 and a second piston cylinder 10 are symmetrically installed on the support frame 17. A first piston 8 and a second piston 11 are respectively installed inside the first piston cylinder 7 and the second piston cylinder 10. A piston rod A on the first piston 8 and a piston rod B on the second piston 11 are connected to form a combined piston rod 12. A central oil passage hole 13 is provided at the center of the combined piston rod 12. The central oil passage hole 13 communicates with the rodless cavity of the first piston cylinder 7 and the rodless cavity of the second piston cylinder 10. A one-way valve 21 is installed at the right end of the central oil passage hole 13. The one-way valve 21 restricts the one-way entry of oil into the rodless cavity of the second piston cylinder 10. A compression spring 9 is provided between the rear cylinder head of the first piston cylinder 7 and the first piston 8. A bypass inlet pipe 15 communicating with the rod chamber of the first piston cylinder 7 is installed on the front cylinder head of the first piston cylinder 7. The other end of the bypass inlet pipe 15 is connected to the bypass joint 4. A fourth stop valve 22 is installed on the bypass inlet pipe 15. A bypass outlet pipe 16 communicating with the rodless cavity of the first piston cylinder 7 is installed on the rear cylinder head of the first piston cylinder 7. The other end of the bypass outlet pipe 16 merges with the oil outlet main pipe 3. A first stop valve 5 and a second stop valve 6 are respectively installed on the oil outlet main pipe 3 and the bypass outlet pipe 16. An oil passage hole 14 communicating with the rod chamber and the rodless cavity of the first piston cylinder 7 is provided on the first piston 8. An oil extraction pipe 18 communicating with the rodless cavity of the second piston cylinder 10 is installed on the rear cylinder head of the second piston cylinder 10. A third stop valve 19 is installed on the oil extraction pipe 18. A receiving container 20 for receiving the oil discharged from the oil extraction pipe 18 is provided below the other end of the oil extraction pipe 18.

[0033] Further, an air inlet and outlet pipe communicating with the rod chamber of the second piston cylinder 10 is installed on the outer wall of the second piston cylinder 10.

[0034] Further, the first stop valve 5, the second stop valve 6, the third stop valve 19, and the fourth stop valve 22 are all manual ball valves.

[0035] Further, multiple groups of oil passage holes 14 are distributed in a circular array around the center line of the first piston 8.

[0036] Further, the cross-sectional area of the pipe material of the bypass inlet pipe 15 is larger than the sum of the cross-sectional areas of multiple groups of oil passage holes 14, so that when the oil enters the rod chamber of the first piston cylinder 7, it can not only ensure that the first piston 8 is pushed to compress the compression spring 9 to move, but also the oil can flow from the rod chamber of the first piston cylinder 7 into its rodless cavity.

[0037] Furthermore, the oil delivery pump 2 is a gear pump or a peristaltic pump.

[0038] For the oil extraction device for lubricating oil production of the present utility model, when the third stop valve is opened, the compressed compression spring will push the first piston to the right. The oil in the rod chamber of the first piston cylinder will enter the rodless chamber of the first piston cylinder through the oil hole. While the first piston is moving, it will push the second piston to the right. The second piston will discharge the oil in the rodless chamber of the second piston cylinder into the receiving container through the oil extraction pipe, realizing quantitative oil extraction. A single person can complete the sampling of lubricating oil, saving time and effort.

[0039] The oil extraction device for lubricating oil production of the present utility model uses an existing oil delivery pump as the power, and the rest of the operations are completely manual, making the device environmentally friendly and pollution-free. At the same time, its structure is simple and the price is low, so its practicability is very strong.

[0040] For the oil extraction device for lubricating oil production of the present utility model, since the same oil as the previous oil extraction will remain in the first piston cylinder, each oil extraction is the oil remaining from the previous time. By repeating the above steps, oil extraction can be carried out multiple times to obtain oil from different periods, which is convenient for comparison.

[0041] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art of this industry should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

[0042] The parts not described in detail in the present invention are all well-known technologies to those skilled in the art of this technology.

Claims

1. An oil extraction device for lubricating oil production, comprising an oil storage tank and an oil outlet pump, wherein the oil outlet of the oil outlet pump is connected to an oil outlet main pipe, characterized in that: The oil outlet main pipe has a bypass joint at one end close to the oil outlet pump, and the bypass joint is connected to an oil taking mechanism so as to take oil when the oil outlet pump is supplying oil normally.

2. The oil extraction device for lubricating oil production according to claim 1, characterized in that: The oil extraction mechanism includes a support frame fixed to the outer wall of the oil storage tank, a first piston cylinder and a second piston cylinder are symmetrically mounted on the support frame, a first piston and a second piston are respectively mounted inside the first piston cylinder and the second piston cylinder, a piston rod A on the first piston and a piston rod B on the second piston are connected to form a combined piston rod, a central oil hole is provided at the center of the combined piston rod, the central oil hole is connected to the rodless chamber of the first piston cylinder and the rodless chamber of the second piston cylinder, a one-way valve is installed at the right end of the central oil hole, the one-way valve limits the oil from entering the rodless chamber of the second piston cylinder in one direction, a compression spring is provided between the rear cylinder cover of the first piston cylinder and the first piston, a spring connected to the first piston is installed on the front cylinder cover of the first piston cylinder A bypass oil inlet pipe connected to the rod chamber of the cylinder, the other end of the bypass oil inlet pipe is connected to the bypass joint, a fourth stop valve is installed on the bypass oil inlet pipe, a bypass oil outlet pipe connected to the rodless chamber of the first piston cylinder is installed on the rear cylinder cover of the first piston cylinder, the other end of the bypass oil outlet pipe merges with the oil outlet main pipe, the oil outlet main pipe and the bypass oil outlet pipe are respectively installed with a first stop valve and a second stop valve, an oil through hole connecting the rod chamber and the rodless chamber of the first piston cylinder is opened on the first piston, an oil extraction pipe connected to the rodless chamber of the second piston cylinder is installed on the rear cylinder cover of the second piston cylinder, a third stop valve is installed on the oil extraction pipe, and a receiving container for receiving the oil output from the oil extraction pipe is provided below the other end of the oil extraction pipe.

3. The oil extraction device for lubricating oil production according to claim 2, characterized in that: An inlet and outlet air pipe connected with the rod chamber of the second piston cylinder is installed on the outer wall of the second piston cylinder.

4. The oil extraction device for lubricating oil production according to claim 3, characterized in that: The first stop valve, the second stop valve, the third stop valve and the fourth stop valve are all manual ball valves.

5. The oil extraction device for lubricating oil production according to claim 4, characterized in that: The plurality of groups of oil holes are distributed in a ring array around the center line of the first piston.

6. The oil extraction device for lubricating oil production according to claim 5, characterized in that: The cross-sectional area of ​​the bypass oil inlet pipe is greater than the sum of the cross-sectional areas of multiple groups of oil holes, so that when the oil enters the rod chamber of the first piston cylinder, it can not only ensure that the first piston compresses the compression spring to move, but also the oil can flow from the rod chamber of the first piston cylinder into its rodless chamber.

7. The oil extraction device for lubricating oil production according to claim 6, characterized in that: The oil outlet pump is a gear pump or a peristaltic pump.

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