Pressure plate type lubricating pump

Abstract

A pressure plate type lubricating pump is filled with high-density lubricating oil and comprises a base, a pump machine and a pressure plate, the pump machine is fixedly connected to the lubricating pump, and the pressure plate is integrally formed on the pump machine; the container is fixedly connected to the base and is observed in the direction parallel to the surface of the base, the container and the pressing disc abut against the container, a cavity is formed between the container and the pressing disc, the cavity is located in the container and located on the side, away from the base, of the container, and lubricating oil is stored in the cavity; wherein one side, deviating from the cavity, of the pressing disc is fixedly connected with an oil discharge pipe, the oil discharge pipe penetrates through the pressing disc and is connected with the cavity through a pipeline, and when the pressing disc presses the cavity downwards in the first direction perpendicular to the base, lubricating oil in the cavity is squeezed and discharged out of the cavity through the oil discharge pipe.

Description

Technical Field

[0001] This utility model relates to the field of mechanical lubrication equipment, and in particular to a pressure plate type lubrication pump. Background Technology

[0002] Under the action of a drive mechanism (such as a motor or cylinder), the pressure plate applies pressure to the lubricating oil in the oil reservoir, forcing the lubricating oil to be discharged through the oil outlet. The discharged lubricating oil is then transported to various lubrication points via pipelines, achieving lubrication and cooling of mechanical components. This type of lubrication pump is widely used in industrial machinery (such as machine tools and forging equipment), automated production lines, wind power equipment, and heavy machinery, and is especially suitable for scenarios requiring high lubrication precision.

[0003] Currently, most lubrication pumps on the market with pressure plates have the oil outlet connecting to the internal space located directly below the pump's extrusion chamber. With this design, the lubricating oil is directly discharged under the pressure of the pressure plate. This results in the shortest oil discharge path, low flow resistance, and some reliance on gravity for drainage. However, if the lubricating oil has a high viscosity, it will typically settle at the bottom of the chamber due to gravity. Because of the higher density at the bottom, the efficiency of oil discharge through the outlet directly below the chamber will significantly decrease. Furthermore, long-term extrusion of denser lubricating oil can lead to excessive pressure on one side of the pressure plate, ultimately causing accelerated equipment wear and a shortened pump lifespan.

[0004] Therefore, it is necessary to provide a pressure plate lubrication pump that can effectively prevent the decrease in oil output efficiency and reduce pressure plate pressure when the lubricating oil is thick. Utility Model Content

[0005] The purpose of this invention is to provide a pressure plate lubrication pump that can effectively prevent a decrease in oil output efficiency and reduce pressure plate pressure when the lubricating oil is thick.

[0006] According to one aspect of this application, a pressure plate type lubrication pump is provided, which is filled with high-density lubricating oil, the lubrication pump comprising:

[0007] Base

[0008] A pump is fixedly connected to the lubrication pump, and the pump has a pressure plate integrally formed thereon;

[0009] A container is fixedly connected to the base. When viewed in a direction parallel to the surface of the base, the pressure plate abuts against the container, and a cavity is formed between the container and the pressure plate. The cavity is located inside the container and on the side of the container away from the base. Lubricating oil is stored in the cavity.

[0010] The pressure plate is fixedly connected to an oil drain pipe on the side away from the cavity, and the oil drain pipe passes through the pressure plate and is connected to the cavity. When the pressure plate presses down on the cavity in a first direction perpendicular to the base, the lubricating oil in the cavity is squeezed out and discharged from the cavity through the oil drain pipe.

[0011] More preferably, the lubrication pump further includes:

[0012] An oil storage unit is fixedly connected to the base and located on the side of the base where the container is located;

[0013] The connecting part is fixedly connected to the oil storage part and is located on the other side of the oil storage part opposite to the side fixedly connected to the base.

[0014] More preferably, the connecting part is fixedly connected to the fixing part, and the pump is fixedly connected to the fixing part.

[0015] More preferably, the lubrication pump further includes:

[0016] A side bracket is fixedly connected to the base and is located on the side of the base where the oil storage part is located;

[0017] Viewed along a direction parallel to the base surface, a start button and a directional switch are sequentially and fixedly connected on the side bracket, and the start button and directional switch are electrically connected to the pump.

[0018] More preferably, the side support further includes:

[0019] A pilot valve is fixedly connected to the side bracket and located on the side of the side bracket opposite to the start button;

[0020] The oil separator valve is fixedly connected to the side bracket and is located on the side of the side bracket away from the directional switch.

[0021] More preferably, the guide valve pipeline is connected to the oil distribution valve, the oil distribution valve has a first oil outlet and a second oil outlet, the first oil outlet is connected to the pipeline on the side of the oil storage part near the base, and the second oil outlet is connected to the pipeline on the other side of the oil storage part away from the base.

[0022] More preferably, the drain pipe is connected to the guide valve pipeline, and the lubricating oil enters the oil storage section in sequence through the drain pipe, the guide valve and the oil distribution valve.

[0023] More preferably, the lubrication pump further includes:

[0024] The first flow meter is fixedly connected to the pump.

[0025] The second flow meter is fixedly connected to the side bracket and is located on the side of the side bracket where the oil separator valve is located, and on the side of the oil separator valve away from the base.

[0026] More preferably, the oil distribution valve also has a third oil outlet, located on the side of the oil distribution valve opposite to the first oil outlet and the second oil outlet.

[0027] The second flow meter is connected to the third oil outlet pipeline, the first flow meter is connected to the second flow meter pipeline, and is also connected to the pump pipeline.

[0028] More preferably, a portion of the lubricating oil in the oil separator valve enters the pump sequentially through the second flow meter and the first flow meter.

[0029] This utility model has the following beneficial effects:

[0030] An oil drain pipe is fixedly connected to the side of the pressure plate opposite to the cavity, and the oil drain pipe passes through the pressure plate and connects to the cavity, thus forming a connection between the pressure plate and the cavity. When the pressure plate's compression of the lubricating oil in the cavity is obstructed, some lubricating oil can be discharged through the oil drain pipe, reducing the pressure on the pressure plate. Furthermore, the top oil drain design of the cavity, where the lubricating oil is squeezed out when the pressure plate presses down on the cavity, prevents thick lubricating oil from accumulating at the bottom of the cavity and failing to be effectively discharged, thus avoiding a decrease in oil output efficiency. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0032] Figure 1 This is a three-dimensional structural diagram of the lubrication pump described in one embodiment of this application;

[0033] Figure 2 As described in one embodiment of this application Figure 1 A cross-sectional view of the inner edge cutting line AA;

[0034] Figure 3 This is a three-dimensional structural schematic diagram of the lubrication pump as viewed from another perspective in one embodiment of this application;

[0035] Reference numerals: 100, Lubrication pump; 10, Base; 20, Pump; 21, Pressure plate; 21A, Oil drain pipe; 30, Container; 40, Cavity; 50, Oil storage section; 60, Connecting part; 61, Fixing part; 70, Side bracket; 71, Start button; 72, Direction switch; 73, Guide valve; 74, Oil distributor valve; 74A, First oil outlet; 74B, Second oil outlet; 74C, Third oil outlet; 80, First flow meter; 90, Second flow meter; F1, First direction. Detailed Implementation

[0036] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings. Preferred embodiments of this application are shown in the drawings. However, this application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this application.

[0037] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0039] Please refer to Figure 1 - Figure 3 One embodiment of this application provides a pressure plate 21 type lubrication pump 100, which is filled with high-density lubricating oil. The lubrication pump 100 includes: a base 10, a pump 20 and a container 30.

[0040] The pump 20 is fixedly connected to the lubrication pump 100, and the pump 20 integrally forms a pressure plate 21. The container 30 is fixedly connected to the base 10, and viewed in a direction parallel to the surface of the base 10, the pressure plate 21 abuts against the container 30, and a cavity 40 is formed between the container 30 and the pressure plate 21. The cavity 40 is located inside the container 30 and on the side of the container 30 away from the base 10, and lubricating oil is stored in the cavity 40. An oil drain pipe 21A is fixedly connected to the side of the pressure plate 21 away from the cavity 40, and the oil drain pipe 21A passes through the pressure plate 21 and is connected to the cavity 40. When the pressure plate 21 presses down on the cavity 40 in a first direction F1 perpendicular to the base 10, the lubricating oil in the cavity 40 is squeezed out and discharged from the cavity 40 through the oil drain pipe 21A.

[0041] In a conventional lubrication pump 100, the oil outlet connecting to the internal space is located directly below the pressure plate 21 and the pump extrusion chamber 40. When the lubricating oil viscosity is high, it will deposit at the bottom of the chamber 40 due to gravity. Because the lubricating oil density is higher at the bottom, the efficiency of oil discharge from the pressure plate 21 and the chamber 40 through the outlet at the bottom will decrease significantly. In this design, the oil drain pipe 21A is fixedly connected to the side of the pressure plate 21 away from the chamber 40, and passes through the pressure plate 21 and is connected to the chamber 40. When the pressure plate 21 presses down on the chamber 40 in the first direction F1 perpendicular to the base 10, the lubricating oil in the chamber 40 is squeezed and discharged from the chamber 40 through the oil drain pipe 21A. This top-discharge design avoids the problem of thick lubricating oil depositing at the bottom of the chamber 40 and not being effectively discharged, ensuring that the lubricating oil can be discharged smoothly and improving the oil discharge efficiency. Long-term compression of high-density lubricating oil will cause excessive pressure on one side of the pressure plate 21, leading to increased equipment wear and a shortened service life of the lubrication pump 100. When the pressure plate 21 compresses the lubricating oil in the cavity 40, some of the lubricating oil can be discharged through the drain pipe 21A, thereby reducing the pressure on the pressure plate 21. This helps extend the service life of the equipment and reduce maintenance costs. In traditional designs, the lubricating oil is directly discharged from below by the downward pressure of the pressure plate 21. Although this has the shortest path and the lowest flow resistance, it is not effective when handling high-density lubricating oil. By setting up the drain pipe 21A, the discharge path of the lubricating oil is changed. This design is not only suitable for high-density lubricating oil, but also optimizes the flow of lubricating oil to a certain extent, allowing it to be discharged from the cavity 40 more smoothly, thus improving the overall performance of the lubrication system. This design enables the lubrication pump 100 to better adapt to lubricating oils of different viscosities, especially performing excellently when handling high-density lubricating oil. It broadens the application range of the lubrication pump 100, enabling it to meet the needs of more industrial scenarios.

[0042] More preferably, the lubrication pump 100 further includes an oil reservoir 50 and a connecting portion 60.

[0043] The oil storage section 50 is fixedly connected to the base 10 and is located on the side of the base 10 where the container 30 is located. The connecting section 60 is fixedly connected to the oil storage section 50 and is located on the other side of the oil storage section 50 opposite to the side fixedly connected to the base 10.

[0044] The oil reservoir 50 is fixedly connected to the base 10 and located on one side of the container 30, serving as a storage unit for lubricating oil. This arrangement ensures a sufficient supply of lubricating oil to the lubrication pump 100 during operation, preventing equipment failure due to insufficient lubricating oil. By incorporating the oil reservoir 50, the lubrication pump 100 reduces its reliance on external lubricating oil supply systems, improving system independence and reliability. The connecting part 60 is fixedly connected to the oil reservoir 50 and located on the other side, acting as a bridge for lubricating oil distribution and circulation. It can deliver lubricating oil from the oil reservoir 50 to the parts requiring lubrication, and can also recover used lubricating oil and re-deliver it to the oil reservoir 50, achieving lubricating oil recycling. The arrangement of the oil reservoir 50 and the connecting part 60 allows the lubrication pump 100 to be flexibly configured according to different lubrication needs. For example, by adjusting the pipeline layout of the connecting part 60, lubricating oil can be delivered to different lubrication points to meet the lubrication requirements of different equipment. Integrating the oil reservoir 50 and the connecting part 60 into the lubrication pump 100 reduces the equipment's footprint and improves space utilization. This is especially important in space-constrained industrial environments. Through a rational layout and design, the lubrication pump 100 achieves a more compact structure, facilitating installation and maintenance. The arrangement of the oil reservoir 50 and the connecting part 60 makes the lubrication pump 100 a more integrated system. This design reduces the number of connections and interfaces between components, lowers the risk of leakage, and improves the overall performance of the system. Designing the oil reservoir 50 and the connecting part 60 as independent modules allows for easy disassembly and replacement. When a component malfunctions, it can be quickly repaired or replaced, minimizing downtime.

[0045] More preferably, the connecting part 60 is fixedly connected to the fixing part 61, and the pump 20 is fixedly connected to the fixing part 61.

[0046] The direct connection of pump 20 to connecting part 60 via fixing part 61 reduces energy loss in the transmission process and improves the driving efficiency of pump 20. This direct connection ensures that the operation of pump 20 is synchronized with the lubrication system's needs, preventing insufficient or excessive lubrication due to transmission delays. Fixing part 61, as an intermediate connector, absorbs vibrations from pump 20 operation, reducing their impact on connecting part 60 and the entire lubrication system, ensuring stable lubricant delivery. The stable connection structure reduces pipe loosening or seal failure caused by vibration, lowering the risk of lubricant leakage. Under heavy or high-load conditions, the operational stability of pump 20 is crucial. Fixing part 61 enhances the installation rigidity of pump 20, ensuring reliable operation under harsh conditions. In harsh environments such as dust, humidity, or high temperatures, fixing part 61 protects the connecting part 60 from the influence of the external environment on the lubrication system.

[0047] More preferably, the lubrication pump 100 further includes a side bracket 70.

[0048] The side bracket 70 is fixedly connected to the base 10 and is located on the side of the base 10 where the oil storage part 50 is located. When viewed along a direction parallel to the surface of the base 10, a start button 71 and a directional switch 72 are sequentially and fixedly connected on the side bracket 70. The start button 71 and the directional switch 72 are electrically connected to the pump 20.

[0049] The start button 71 and the directional switch 72 are centrally located on the side bracket 70, facilitating quick start or adjustment of the pump 20's running direction by the operator, reducing operational steps and improving work efficiency. Centralizing the control components reduces the risk of operator error due to dispersed operation, improving equipment safety. The side bracket 70 is located on the side of the base 10 where the oil reservoir 50 is located, allowing the operator to directly observe the operating status of the lubrication pump 100 and adjust the pump 20's running direction (upward or downward) in real time using the directional switch 72, ensuring the lubrication system operates as required. The operator can start or adjust the pump 20 in real time based on the equipment's operating status using the control components on the side bracket 70, ensuring the lubrication system is always in optimal operating condition. The directional switch 72 is electrically connected to the pump 20, allowing the operator to quickly adjust the pump 20's running direction to adapt to different working conditions, improving the adaptability and flexibility of the lubrication pump 100. The layout of the control elements on the side bracket 70 facilitates quick positioning and operation by the operator and conforms to ergonomic principles (analogy: the side bracket 70 is like an operating table, and the control elements are centrally arranged on the side bracket 70 and electrically connected to the pump 20 to ensure real-time control of the operation of the pump 20).

[0050] More preferably, the side support 70 further includes a guide valve 73 and an oil distribution valve 74.

[0051] The guide valve 73 is fixedly connected to the side bracket 70 and is located on the side of the side bracket 70 opposite to the start button 71. The oil distribution valve 74 is fixedly connected to the side bracket 70 and is located on the side of the side bracket 70 opposite to the directional switch 72.

[0052] The pilot valve 73 controls the direction or path of lubricating oil flow, such as switching the oil supply channel. Positioning it on the side bracket 70 away from the start button 71 prevents accidental activation by the operator when starting the pump 20, ensuring the independence of the control logic. The distributor valve 74 distributes lubricating oil to different lubrication points or oil circuits. Positioning it on the side bracket 70 away from the directional switch 72 prevents accidental activation by the operator when adjusting the pump 20's running direction, ensuring the stability of the oil distribution logic. This spatial separation decouples the start / directional control from the pilot / distribution functions, reducing the risk of misoperation and improving system reliability and safety. After starting the pump 20 (start button 71), if the operator needs to adjust the oil supply direction or distribution path, they can directly operate the pilot valve 73 or the distributor valve 74 without needing to access other control components. This layout is ergonomic, reduces operating steps, and improves work efficiency. The independent positions of the pilot valve 73 and the oil distributor valve 74 facilitate quick positioning and operation by the operator, especially in emergency situations (such as when immediate switching of the oil supply path is required), significantly shortening the response time. In scenarios requiring multi-channel oil supply (such as simultaneous lubrication of multiple lubrication points), the independent setting of the pilot valve 73 and the oil distributor valve 74 ensures independent control of each channel, avoiding mutual interference. If the lubricating oil distribution needs to be dynamically adjusted during equipment operation (such as adjusting the oil supply according to load changes), the independent position of the oil distributor valve 74 facilitates real-time monitoring and adjustment by the operator.

[0053] More preferably, the guide valve 73 is connected to the oil distribution valve 74, which has a first oil outlet 74A and a second oil outlet 74B. The first oil outlet 74A is connected to the side of the oil storage unit 50 near the base 10, and the second oil outlet 74B is connected to the other side of the oil storage unit 50 away from the base 10.

[0054] The pilot valve 73 controls the flow of lubricating oil to different channels of the oil distributor 74 by switching oil circuits. This design allows the system to dynamically adjust the oil supply path according to actual needs. For example, during equipment startup, the pilot valve 73 directs lubricating oil to one channel of the oil distributor 74, prioritizing lubrication of critical parts. During stable operation, it switches to another channel for comprehensive lubrication. The first outlet 74A and the second outlet 74B of the oil distributor 74 are connected to different locations in the oil reservoir 50, allowing lubricating oil to enter different areas of the oil reservoir 50 simultaneously or in stages. This bidirectional distribution capability improves the system's flexibility and adaptability. This design ensures that lubricating oil preferentially reaches the core area of ​​the oil reservoir 50 (near the base 10), thereby quickly replenishing the amount of lubricating oil in critical parts and reducing friction and wear. This design allows lubricating oil to further diffuse to the edge areas of the oil reservoir 50, ensuring uniform lubricating oil distribution throughout the entire oil reservoir 50 and avoiding localized insufficient lubrication. The two outlets of the oil distributor 74 are directly connected to different locations in the oil reservoir 50, avoiding excessive pipe joints and improving the system's sealing and reliability.

[0055] More preferably, the oil drain pipe 21A is connected to the pilot valve 73, and the lubricating oil enters the oil storage section 50 in sequence through the oil drain pipe 21A, the pilot valve 73 and the oil distribution valve 74.

[0056] Through precise control of the pilot valve 73 and the oil distributor valve 74, lubricating oil is supplied to designated areas only when needed, avoiding waste and contamination caused by excessive lubrication. The optimized piping design reduces the flow resistance of lubricating oil in the pipeline, lowering pump energy consumption. The multiple outlets of the oil distributor valve 74 can be considered a simple redundancy design. If one outlet fails, the others can continue to operate, ensuring that the system's basic lubrication function is not affected. The independent design of the pilot valve 73 and the oil distributor valve 74 makes fault isolation easier. If a component fails, it can be quickly located and repaired without affecting the normal operation of other components. The multiple outlets of the oil distributor valve 74 help balance the pressure inside the oil reservoir 50, preventing lubricating oil leakage or equipment damage caused by uneven pressure. The optimized piping design reduces air resistance in the pipeline, ensuring smooth lubricating oil flow and improving system safety and stability.

[0057] More preferably, the lubrication pump 100 further includes a first flow meter 80 and a second flow meter 90.

[0058] The first flow meter 80 is fixedly connected to the pump 20. The second flow meter 90 is fixedly connected to the side bracket 70 and is located on the side of the side bracket 70 where the oil separator valve 74 is located, and on the side of the oil separator valve 74 away from the base 10.

[0059] The first flow meter 80 on the pump 20 side is used to directly measure the total amount of lubricating oil output by the pump 20, serving as a system reference value. Flow fluctuations are used to determine whether the pump 20 is worn, leaking, or overloaded. The first flow meter 80 is located close to the pump 20 outlet, reducing interference from the pipeline on flow measurement (such as pressure loss and air resistance), facilitating quick location of pump 20 faults (such as pump body leakage or motor abnormality). The second flow meter 90, located near the side bracket 70, monitors the actual flow rate after distribution by the oil distributor 74, ensuring that the lubricating oil reaches each lubrication point proportionally. If the flow rate at the downstream end of the oil distributor 74 drops abnormally, pipeline leakage or a fault in the oil distributor 74 can be located. The second flow meter 90 is located on the side of the oil distributor 74 away from the base 10, avoiding high-temperature or vibration areas, extending the flow meter's lifespan, and facilitating the detection of the distribution accuracy of the oil distributor 74 (e.g., if the flow rate in one path is too low, it may correspond to blockage of the oil distributor 74 or pipeline bend). If the first flow meter 80 shows normal flow, but the second flow meter 90 shows abnormal flow, the fault can be identified as being in the oil separator valve 74 or downstream pipelines. If both the first flow meter 80 and the second flow meter 90 show abnormal flow, the fault is in the pump 20 or the input end. In extreme operating conditions (such as failure of the main flow meter), the backup flow meter can temporarily assume the monitoring function to avoid system shutdown.

[0060] More preferably, the oil distribution valve 74 is further provided with a third oil outlet 74C, located on the side of the oil distribution valve 74 opposite to the first oil outlet 74A and the second oil outlet 74B. The second flow meter 90 is connected to the third oil outlet 74C via pipeline, and the first flow meter 80 is connected to the second flow meter 90 via pipeline, and is also connected to the pump 20 via pipeline.

[0061] The third oil outlet 74C, serving as a backup or special lubrication point (such as for cooling systems or emergency lubrication), requires independent flow monitoring. The second flow meter 90 is directly connected to the third oil outlet 74C to ensure accurate and controllable flow in this channel. This prevents abnormal flow at the third oil outlet 74C from being masked by other outlets (e.g., blockage or leakage). The first flow meter 80 not only monitors the total flow of the pump 20 but also, through its series connection with the second flow meter 90, verifies whether the overall flow at the downstream end of the oil distributor valve 74 matches the output of the pump 20. If the first flow meter 80 shows normal flow but the second flow meter 90 shows abnormal flow, internal leakage in the oil distributor valve 74 or problems with pipeline branches can be quickly located. Relying solely on a single flow meter may lead to misjudgments due to sensor malfunction or pipeline interference. The dual flow meter series design allows for mutual verification, improving diagnostic accuracy.

[0062] More preferably, a portion of the lubricating oil in the oil distribution valve 74 passes sequentially through the second flow meter 90 and the first flow meter 80 into the pump 20.

[0063] Over time, wear and tear on the seal of pressure plate 21 can lead to internal leakage, which is difficult to detect in a timely manner with traditional designs. The leakage rate can be accurately calculated by comparing the theoretical oil discharge of pump 20 with the actual output of the second flow meter 90 plus the return flow of the first flow meter 80. A maintenance alarm is triggered when the leakage rate exceeds a threshold (e.g., 5%) to prevent lubrication failure. High-density lubricating oil is prone to uneven distribution in the oil distributor valve 74, resulting in insufficient oil supply to some lubrication points. Bypass oil returns to pump 20 via dual flow meters, forming a closed-loop circulation. Feedback is used to adjust the pressure frequency of pressure plate 21 or the opening of oil distributor valve 74 to ensure stable flow in the main oil circuit.

[0064] Therefore, an oil drain pipe 21A is fixedly connected to the side of the pressure plate 21 away from the cavity 40, and the oil drain pipe 21A passes through the pressure plate 21 and is connected to the cavity 40, so that the pressure plate 21 and the cavity 40 are connected. When the pressure plate 21 is unable to squeeze the lubricating oil in the cavity 40, some lubricating oil can be discharged through the oil drain pipe 21A, reducing the pressure on the pressure plate 21. Furthermore, the top oil drain design of the cavity 40, where the lubricating oil in the cavity 40 is squeezed and discharged through the oil drain pipe 21A when the pressure plate 21 presses down on it, avoids the accumulation of thick lubricating oil at the bottom of the cavity 40, which would otherwise lead to a decrease in oil discharge efficiency.

[0065] The embodiments described above are merely examples of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these modifications and improvements all fall within the protection scope of this application.

Claims

1. A pressure plate type lubrication pump, filled with high-density lubricating oil, characterized in that, The lubrication pump includes: Base A pump is fixedly connected to the lubrication pump, and the pump has a pressure plate integrally formed thereon; A container is fixedly connected to the base. When viewed in a direction parallel to the surface of the base, the pressure plate abuts against the container, and a cavity is formed between the container and the pressure plate. The cavity is located inside the container and on the side of the container away from the base. Lubricating oil is stored in the cavity. The pressure plate is fixedly connected to an oil drain pipe on the side away from the cavity, and the oil drain pipe passes through the pressure plate and is connected to the cavity. When the pressure plate presses down on the cavity in a first direction perpendicular to the base, the lubricating oil in the cavity is squeezed out and discharged from the cavity through the oil drain pipe.

2. The pressure plate type lubrication pump according to claim 1, characterized in that, The lubrication pump also includes: An oil storage unit is fixedly connected to the base and located on the side of the base where the container is located; The connecting part is fixedly connected to the oil storage part and is located on the other side of the oil storage part opposite to the side fixedly connected to the base.

3. A pressure plate type lubrication pump according to claim 2, characterized in that, The connecting part is fixedly connected to the fixing part, and the pump is fixedly connected to the fixing part.

4. A pressure plate type lubrication pump according to claim 3, characterized in that, The lubrication pump also includes: A side bracket is fixedly connected to the base and is located on the side of the base where the oil storage part is located; Viewed along a direction parallel to the base surface, a start button and a directional switch are sequentially and fixedly connected on the side bracket, and the start button and directional switch are electrically connected to the pump.

5. A pressure plate type lubrication pump according to claim 4, characterized in that, The side support also includes: A pilot valve is fixedly connected to the side bracket and located on the side of the side bracket opposite to the start button; The oil separator valve is fixedly connected to the side bracket and is located on the side of the side bracket away from the directional switch.

6. A pressure plate type lubrication pump according to claim 5, characterized in that, The pilot valve pipeline is connected to the oil distribution valve. The oil distribution valve has a first oil outlet and a second oil outlet. The first oil outlet is connected to the pipeline on the side of the oil storage unit near the base, and the second oil outlet is connected to the pipeline on the other side of the oil storage unit away from the base.

7. A pressure plate type lubrication pump according to claim 6, characterized in that, The oil drain pipe is connected to the pilot valve pipeline, and the lubricating oil enters the oil storage section in sequence through the oil drain pipe, the pilot valve and the oil distribution valve.

8. A pressure plate type lubrication pump according to claim 7, characterized in that, The lubrication pump also includes: The first flow meter is fixedly connected to the pump. The second flow meter is fixedly connected to the side bracket and is located on the side of the side bracket where the oil separator valve is located, and on the side of the oil separator valve away from the base.

9. A pressure plate type lubrication pump according to claim 8, characterized in that, The oil distribution valve also has a third oil outlet, located on the side of the oil distribution valve opposite to the first and second oil outlets. The second flow meter is connected to the third oil outlet pipeline, the first flow meter is connected to the second flow meter pipeline, and is also connected to the pump pipeline.

10. A pressure plate type lubrication pump according to claim 9, characterized in that, A portion of the lubricating oil in the oil separator valve enters the pump sequentially through the second flow meter and the first flow meter.

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