Centrifugal regenerator rotor shaft lubrication system

Abstract

The utility model relates to the technical field of lubricating device, more particularly, disclose a kind of centrifugal regenerator rotating shaft lubrication system, it includes: box, inside hollow;Partition, vertically installed in box, box is separated into first chamber and second chamber;Lubricating grease, is stored in first chamber;Pump body, feed inlet is connected first chamber by pipe fitting, discharge outlet is connected centrifugal regenerator by pipe fitting;Backflow pipe fitting, one end is connected centrifugal regenerator, other end is connected second chamber;Overflow, be set on the upside of partition along vertical direction, first chamber and second chamber are connected;Can automatically complete lubrication operation to centrifugal regenerator, and reduce the environmental factor interference of outside, effectively guarantee the lubrication effect of the rotating shaft of centrifugal regenerator;It can also recycle to lubricating grease, reduce the cost of lubricating grease.

Description

Technical Field

[0001] This utility model relates to the technical field of lubrication devices, and in particular to a lubrication system for the shaft of a centrifugal regenerator. Background Technology

[0002] Centrifugal regenerators are commonly used in the foundry industry for the recycling and processing of old mold and core sand used in the production of cast steel, cast iron, or non-ferrous alloy castings using self-hardening sand processes (including furan resin, phenolic resin, PEPET resin, organic oil water glass, etc.).

[0003] Inevitably, after long-term use of the centrifugal regenerator, it is necessary for staff to manually apply grease through a pressure gun to inject grease into the shaft of the centrifugal regenerator for lubrication.

[0004] However, manual grease lubrication has many drawbacks, such as: high labor intensity; unstable manual pressure, which can lead to insufficient lubrication in large contact areas; and the inability to recycle the grease injected into the centrifugal regeneration machine, requiring frequent replenishment during use.

[0005] Therefore, how to properly treat lubrication points and apply grease has become a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0006] In view of the above problems, this utility model provides a centrifugal regenerator shaft lubrication system, the purpose of which is to reduce manual labor and improve the lubrication efficiency of the centrifugal regenerator.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A centrifugal regenerator shaft lubrication system is provided, comprising: a housing, hollow inside; a partition, vertically installed inside the housing, dividing the housing into a first chamber and a second chamber; grease stored in the first chamber; a pump body, with an inlet connected to the first chamber via a pipe and an outlet connected to the centrifugal regenerator via a pipe; a return pipe, one end connected to the centrifugal regenerator and the other end connected to the second chamber; and an overflow port, vertically opened on the upper side of the partition, connecting the first chamber and the second chamber.

[0008] Furthermore, the system also includes: a throttle valve and a distribution valve; one end of the throttle valve is connected to the discharge port of the pump body, the other end of the throttle valve is connected to one end of the distribution valve, and the other end of the distribution valve is connected to the centrifugal regenerator.

[0009] Furthermore, the system also includes several hoses, each corresponding to a distribution valve. One end of each hose is connected to a distribution valve, and the other end of each hose is connected to a centrifugal regenerator.

[0010] Furthermore, the system also includes: an oil collection component, located below the shaft of the centrifugal regenerator, for collecting and dripping grease; one end of the return pipe is connected to the lower end of the oil collection component, and the other end of the return pipe is connected to the second chamber.

[0011] Furthermore, the system also includes: a first filter component and a second filter component. The first filter component is disposed in the oil collection component to perform a first filtration of the dripping grease; the second filter component is disposed in the return pipe to perform a second filtration of the grease.

[0012] Furthermore, the system also includes a third filter element, disposed in the second chamber, vertically below the overflow port, for the grease to pass through and be filtered.

[0013] Furthermore, the third filter component includes: a cylindrical element and a corrugated metal coalescing packing, wherein the cylindrical element is installed in the second chamber and the corrugated metal coalescing packing is filled inside the cylindrical element.

[0014] Furthermore, the system also includes: a pressure detection component, a safety valve, and a safety fitting, one end of which is connected to the outlet of the pump body, and the other end of which is connected to the second chamber; the safety valve is used to control the opening and closing of the safety fitting; the pressure detection component is located between the outlet of the pump body and the centrifugal regenerator, and the pressure detection component and the safety valve are electrically connected.

[0015] Furthermore, the system also includes two viewing windows, located on the enclosure, for observing the first chamber and the second chamber, respectively.

[0016] Furthermore, the volume ratio of the first chamber to the second chamber is 3:1.

[0017] The beneficial effects of this invention are as follows: In this invention, the pump body provides pressure to force the grease into the centrifugal regenerator, effectively ensuring stable pressure of the grease entering the centrifugal regenerator and guaranteeing a large-area lubrication effect. Furthermore, a return pipe is provided, which, under the pressure provided by the pump body, forms a return circulation to recover any overflowing / dripping grease. The grease is guided back to the second chamber through the return pipe, thus recycling the grease and reducing the lubrication cost of the centrifugal regenerator. Moreover, the entire lubrication process is completed in a closed environment, reducing interference from external environmental factors and effectively ensuring the lubrication effect on the centrifugal regenerator's shaft.

[0018] In this invention, the returned grease is buffered in the second chamber. Under the action of gravity, impurities in the grease are deposited at the bottom of the second chamber. Over time, clean grease enters the first chamber from the overflow port for pump extraction to perform lubrication again, thus realizing the recycling of grease and reducing grease costs. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure provided for an embodiment of this application.

[0020] Figure 2 This is a schematic diagram of pipe fitting connections provided in an embodiment of this application.

[0021] The components include: 1. Housing; 11. First chamber; 12. Second chamber; 13. Viewing window; 2. Partition; 21. Overflow port; 3. Pump body; 41. Return pipe fitting; 51. Throttling valve; 52. Distribution valve; 53. Hose; 6. Oil collecting component; 71. First filter component; 72. Second filter component; 73. Third filter component; 81. Pressure detection component; 82. Safety valve; 83. Fuse fitting; 84. Pressure gauge; 85. Air filter; 86. Ball valve; 87. Heat exchanger. Detailed Implementation

[0022] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0023] Reference Figure 1 and Figure 2 As shown in the figure, this application discloses a centrifugal regenerator shaft lubrication system, including: a housing 1, which is hollow inside; a partition 2, which is vertically installed inside the housing 1 and divides the housing 1 into a first chamber 11 and a second chamber 12; grease, which is stored in the first chamber 11; a pump body 3, whose inlet is connected to the first chamber 11 through a pipe and whose outlet is connected to the centrifugal regenerator through a pipe; a return pipe 41, one end of which is connected to the centrifugal regenerator and the other end of which is connected to the second chamber 12; and an overflow port 21, which is vertically opened on the upper side of the partition 2 and connects the first chamber 11 and the second chamber 12.

[0024] In this embodiment, the grease in the first chamber 11 is extracted by the pressure provided by the pump body 3, and the grease is squeezed into the centrifugal regenerator by the pressure provided by the pump body 3 to lubricate the rotating shaft of the centrifugal regenerator. By squeezing the grease into the centrifugal regenerator in this way, the pressure of the grease entering the centrifugal regenerator can be kept stable, thus ensuring a large-area lubrication effect on the centrifugal regenerator.

[0025] In this embodiment, a return pipe 41 is also provided, which can form a return circulation under the pressure provided by the pump body 3 to recover the overflowing / dripping grease. The grease is guided back to the second chamber 12 through the return pipe 41, thereby recycling the grease and reducing the lubrication cost of the centrifugal regenerator. Moreover, the entire lubrication process is completed in a closed environment, which can reduce the interference of external environmental factors and effectively ensure the lubrication effect on the shaft of the centrifugal regenerator.

[0026] Specifically, the returned grease is buffered in the second chamber 12. Under the action of gravity, impurities in the grease are deposited at the bottom of the second chamber 12. Over time, clean grease enters the first chamber 11 from the overflow port 21 and is drawn by the pump body 3 for re-lubrication, realizing the recycling of grease and reducing grease costs.

[0027] It is worth mentioning that the return pipe 41 can be made of transparent tubing, which makes it easy to observe whether it is blocked.

[0028] Preferably, the system further includes: a throttle valve 51 and a distribution valve 52; one end of the throttle valve 51 is connected to the discharge port of the pump body 3, the other end of the throttle valve 51 is connected to one end of the distribution valve 52, and the other end of the distribution valve 52 is connected to the centrifugal regenerator.

[0029] Preferably, the system further includes several hoses 53, which are installed corresponding to several distribution valves 52. One end of each hose 53 is connected to a distribution valve 52, and the other end of each hose 53 is connected to a centrifugal regenerator.

[0030] During operation, the grease drawn by the pump body 3 enters the centrifugal regenerator through the throttle valve 51, the distribution valve 52 and the hose 53 in sequence; the hose 53 can be connected to the various grease inlets of the centrifugal regenerator's shaft box (for example, the hose 53 can be connected to the various inlets of the hydraulic end packing box of the centrifugal regenerator).

[0031] In this utility model, the system further includes: an oil collection component 6, which is located below the rotating shaft of the centrifugal regenerator to collect the dripping grease; one end of the return pipe 41 is connected to the lower end of the oil collection component 6, and the other end of the return pipe 41 is connected to the second chamber 12.

[0032] Specifically, the oil collecting component 6 can be funnel-shaped and located inside the shaft box of the centrifugal regenerator, below the shaft. It can collect and gather the grease, and under the pressure provided by the pump body 3, the grease in the oil collecting component 6 returns to the second chamber 12 through the return pipe 41.

[0033] Specifically, the system also includes: a first filter component 71 and a second filter component 72. The first filter component 71 is disposed in the oil collection component 6 to perform a first filtration of the dripping grease; the second filter component 72 is disposed in the return pipe 41 to perform a second filtration of the grease.

[0034] In this invention, by providing a first filter component 71 and a second filter component 72, the grease can be filtered twice during the process of grease returning to the second chamber 12, thereby improving the cleanliness of the grease returning to the second chamber 12 and ensuring the lubrication effect of the recovered grease on the rotating shaft.

[0035] In this embodiment, the first filter element 71 is a stainless steel filter screen, which initially intercepts solid impurities in the grease and performs a first filtration of the recovered grease; the second filter element 72 is a Y-type filter, which intercepts solid particles in the grease and performs a second filtration of the recovered grease.

[0036] Specifically, the system also includes a third filter element 73, which is disposed in the second chamber 12 and is located vertically below the overflow port 21, allowing the grease to pass through and be filtered.

[0037] Specifically, the third filter component 73 includes a cylindrical part and a metal corrugated plate coalescing packing. The cylindrical part is installed in the second chamber 12, and the metal corrugated plate coalescing packing is filled inside the cylindrical part.

[0038] In this embodiment, a third filter component 73 is provided. The grease recovered through the return pipe 41 enters the second chamber 12 from below the third filter component 73. As the grease moves from bottom to top, it passes through the third filter component 73 and is filtered by the metal corrugated plate coalescing packing inside the cylinder, thus completing the third filtration of the recovered grease.

[0039] It is worth mentioning that the filter screen packing in the corrugated metal coalescing packing has a dense structure, low resistance, high mass transfer efficiency, large capacity, and large specific surface area. This effectively ensures the cleanliness of the grease flowing into the first chamber 11.

[0040] By using this invention, the grease used in each cycle can be filtered three times, ensuring the purity of the grease and improving its practicality.

[0041] Specifically, the system also includes: a pressure detection component 81, a safety valve 82, and a safety fitting 83. One end of the safety fitting 83 is connected to the discharge port of the pump body 3, and the other end of the safety fitting 83 is connected to the second chamber 12. The safety valve 82 is used to control the opening and closing of the safety fitting 83. The pressure detection component 81 is located between the discharge port of the pump body 3 and the centrifugal regenerator, and the pressure detection component 81 and the safety valve 82 are electrically connected.

[0042] During operation, the safety valve 82 is normally closed and the pressure inside the pipe is detected by the pressure detection component 81. When the pressure value exceeds the threshold, an electrical signal is transmitted to the safety valve 82, and the safety valve 82 opens to allow some of the grease to overflow into the second chamber 12. The pressure of the delivered grease is adjusted to ensure that the pressure of the grease sent into the centrifugal regenerator is stable, thereby improving the lubrication effect.

[0043] The lubricant discharged by the safety valve 82 extends deep below the liquid surface in the second chamber 12, preventing backflow of oil from splashing and generating air bubbles, which would affect the oil suction of the pump body 3.

[0044] Preferably, the pressure of the grease delivered by the pump body 3 is maintained at 0.3 MPa.

[0045] It is worth mentioning that a programmable logic controller (PLC) can also be added to feed back relevant data such as pressure and liquid level to the PLC, and automatic control can be achieved by using PLC programming language to replace manual control.

[0046] It is worth mentioning that the pressure detection component 81 can be a pressure transmitter; a pressure gauge 84 can also be added between the pressure detection component 81 and the throttle valve 51, through which the real-time pressure value can be observed, and by adjusting the opening size of the throttle valve 51, the oil pressure and flow rate of the lubricating grease can be provided to a suitable range.

[0047] Specifically, the system also includes two viewing windows 13, which are opened on the housing 1, for observing the first chamber 11 and the second chamber 12 respectively; so that the staff can observe the volume of grease in the first chamber 11 and the second chamber 12.

[0048] It is worth mentioning that the pump body 3 can be installed on the top of the housing 1. The pump body 3 can be an electric diaphragm pump, which is driven by a brushless motor and equipped with a speed controller to control the motor current, thereby achieving the purpose of controlling the flow of lubricating grease.

[0049] It's worth noting that the speed control principle of an electric diaphragm pump primarily involves controlling the output shaft speed by altering the frequency and voltage of the current. By controlling the frequency of the input current, the output shaft speed can be changed. When the frequency increases, the output shaft speed increases; when the frequency decreases, the output shaft speed decreases. Similarly, changing the voltage also affects the output shaft speed. When the voltage increases, the output shaft speed increases; when the voltage decreases, the output shaft speed decreases.

[0050] It is worth mentioning that an air filter 85 is also installed on top of the housing 1, connecting the interior of the housing 1 to the outside atmosphere. Simultaneously, the air filter 85 also serves as an inlet for new grease; the grease must pass through the air filter 85 before entering the housing 1, thus removing impurities and particles from the grease. Furthermore, the air filter 85 maintains a pressure balance between the oil tank and atmospheric pressure, preventing potential cavitation in the pump body 3.

[0051] Preferably, a stainless steel filter screen can be added to the overflow port 21 to further filter the grease.

[0052] Preferably, the volume ratio of the first chamber 11 to the volume of the second chamber 12 is 3:1.

[0053] It is worth mentioning that ball valves 86 for draining can be added to the first chamber 11 and the second chamber 12 respectively; a heat exchanger 87 can also be added to the first chamber 11 to heat the grease in the first chamber 11.

[0054] Those skilled in the art will understand that although preferred embodiments of the present invention have been described, those skilled in the art, once they learn the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention. Clearly, those skilled in the art can make various alterations and modifications to the present invention without departing from its spirit and scope. Thus, if these modifications and modifications of the present invention fall within the scope of the machine equivalents of the claims of the present invention, the present invention also intends to include these modifications and modifications.

Claims

1. A centrifugal regenerator shaft lubrication system, characterized in that, include: Box (1), hollow inside; A partition (2) is vertically installed inside the box (1) to divide the box (1) into a first chamber (11) and a second chamber (12); The grease is stored in the first chamber (11); The pump body (3) has an inlet connected to the first chamber (11) via a pipe fitting, and an outlet connected to the centrifugal regenerator via a pipe fitting. The return pipe (41) is connected to the centrifugal regenerator at one end and to the second chamber (12) at the other end; An overflow port (21) is opened vertically on the upper side of the partition (2) to connect the first chamber (11) and the second chamber (12).

2. The centrifugal regenerator shaft lubrication system according to claim 1, characterized in that, Also includes: Throttling valve (51) and distribution valve (52); one end of throttle valve (51) is connected to the outlet of pump body (3), the other end of throttle valve (51) is connected to one end of distribution valve (52), and the other end of distribution valve (52) is connected to centrifugal regenerator.

3. The centrifugal regenerator shaft lubrication system according to claim 2, characterized in that, It also includes several hoses (53), which are installed in relation to several distribution valves (52). One end of each hose (53) is connected to a distribution valve (52), and the other end of each hose (53) is connected to a centrifugal regenerator.

4. The centrifugal regenerator shaft lubrication system according to claim 1, characterized in that, Also includes: The oil collection component (6) is located below the rotating shaft of the centrifugal regenerator to collect the grease dripping. One end of the return pipe (41) is connected to the lower end of the oil collection component (6), and the other end of the return pipe (41) is connected to the second chamber (12).

5. The centrifugal regenerator shaft lubrication system according to claim 4, characterized in that, Also includes: The first filter element (71) and the second filter element (72) are located in the oil collection component (6) to filter the dripping grease for the first time; the second filter element (72) is located in the return pipe (41) to filter the grease for the second time.

6. The centrifugal regenerator shaft lubrication system according to claim 1, characterized in that, Also includes: The third filter element (73) is located in the second chamber (12) and is positioned vertically below the overflow port (21) to allow grease to pass through and be filtered.

7. The centrifugal regenerator shaft lubrication system according to claim 6, characterized in that, The third filter element (73) includes a cylindrical part and a metal corrugated plate coalescing packing, wherein the cylindrical part is installed in the second chamber (12) and the metal corrugated plate coalescing packing is filled in the cylindrical part.

8. The centrifugal regenerator shaft lubrication system according to claim 1, characterized in that, Also includes: The pressure detection component (81), safety valve (82), and fuse (83) are provided. One end of the fuse (83) is connected to the outlet of the pump body (3), and the other end of the fuse (83) is connected to the second chamber (12). The safety valve (82) is used to control the opening and closing of the fuse (83). The pressure detection component (81) is located between the outlet of the pump body (3) and the centrifugal regenerator. The pressure detection component (81) and the safety valve (82) are electrically connected.

9. The centrifugal regenerator shaft lubrication system according to claim 1, characterized in that, Also includes: Two viewing windows (13) are provided on the enclosure (1) for observing the first chamber (11) and the second chamber (12), respectively.

10. The centrifugal regenerator shaft lubrication system according to claim 1, characterized in that, The volume ratio of the first chamber (11) to the volume of the second chamber (12) is 3:1.

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