Improvement method for crankshaft pump of high-pressure cleaning equipment

By introducing a double M-type heat dissipation channel, a built-in heat dissipation device, and an oil circulation cooling and filtration system into the crankshaft pump of the high-pressure cleaning equipment, combined with a temperature sensor and automatic cooling circulation, the problem of reduced oil lubrication effect caused by high temperature in the crankshaft pump is solved, thereby extending oil life and improving equipment reliability.

CN120868016APending Publication Date: 2025-10-31HENAN JINXILI MECHANICAL & ELECTRICAL EQUIPMENT CO LTD
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Patent Information

Application Number
CN202511187798.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-08-25
Publication Date
2025-10-31

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Abstract

The invention discloses an improvement method for a crankshaft pump of high-pressure cleaning equipment, which comprises the following steps: designing a double-M-shaped heat dissipation channel which is thickened by 10mm at the bottom of a crankcase, forming a water inlet / outlet interface, realizing constant-temperature control through physical water circulation cooling, designing a built-in heat dissipation device, and further enhancing the heat dissipation effect by embedding the double-M-shaped heat dissipation device at the bottom of the crankcase. According to the engine oil circulating cooling and filtering system, the lubricating effect of the crankshaft pump is further improved by introducing an external engine oil circulating cooling system. The invention relates to the technical field of high-pressure cleaning equipment, and through the method, the temperature in a crankcase can be reduced, the service life of engine oil is prolonged, the locking phenomenon of a crankshaft and a connecting rod is reduced, and the equipment maintenance frequency and cost are reduced, so that the service life of a crankshaft pump is prolonged.
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Description

Technical Field

[0001] This invention relates to the field of high-pressure cleaning equipment technology, specifically to an improved method for a crankshaft pump in high-pressure cleaning equipment. Background Technology

[0002] Currently, the crankshaft pump in domestic high-pressure cleaning equipment consists of a crankshaft, connecting rod, plunger, and crankcase. In high-pressure cleaning equipment, the crankshaft pump is one of the core components. Prolonged operation can easily lead to excessively high temperatures within the crankcase, reduced oil lubrication, and consequently, seizure of critical components such as the crankshaft and connecting rod, resulting in damage to the crankshaft pump and related accessories. To extend the service life of the crankshaft pump and improve equipment efficiency, this invention proposes an improved method that combines physical cooling with oil circulation cooling to effectively reduce the operating temperature of the crankshaft pump, ensuring that the oil is always in optimal lubrication condition and preventing premature oil failure. Summary of the Invention

[0003] In view of the above situation and to overcome the existing defects, the present invention provides an improved method for crankshaft pumps in high-pressure cleaning equipment. This method can reduce the temperature inside the crankcase, extend the service life of the engine oil, and reduce the seizure of the crankshaft and connecting rod, thereby improving the service life of the crankshaft pump.

[0004] This invention provides the following technical solution: An improved method for a crankshaft pump in high-pressure cleaning equipment, comprising:

[0005] Option 1: Dual M-shaped heat dissipation channel design. A 10mm thickened dual M-shaped heat dissipation channel is designed at the bottom of the crankcase, forming inlet and outlet water interfaces. Temperature control is achieved through physical water circulation cooling. Specific steps are as follows:

[0006] 1. Thickened bottom design: The bottom of the crankcase is thickened by 10mm, and a double M-shaped heat dissipation channel is formed in this part, which can effectively disperse heat.

[0007] 2. Inlet and outlet interface settings: Inlet and outlet interfaces are set at both ends of the heat dissipation channel. The inlet interface is connected to the return water pipe of the pump head pressure regulating valve, and the outlet interface is directly connected to the drain pipe.

[0008] 3. Water circulation cooling: During operation, after the pressure regulating valve is closed, the return water flows into the heat dissipation channel and passes through the double M-shaped channel. The water flow carries away the heat in the radiator, ensuring that the crankcase temperature is kept within a suitable range and extending the service life of the engine oil.

[0009] Option 2: Built-in cooling system design, which further enhances heat dissipation by embedding a double M-shaped cooling device at the bottom of the crankcase. Specific operation is as follows:

[0010] 1. Built-in heat dissipation device design: Double M-shaped or M-shaped metal heat sinks are used at the bottom of the crankcase to increase heat conduction efficiency and enable heat to be quickly transferred to the bottom of the crankcase.

[0011] 2. Even heat distribution: Ensure that the cooling device covers the key heat source areas of the crankcase, avoiding high temperature concentration in one part, thereby reducing the risk of oil failure.

[0012] Option 3: Oil Circulation Cooling and Filtration System. This system further improves the lubrication effect of the crankshaft pump by introducing an external oil circulation cooling system. This system includes a transparent water bottle and an external oil pump, with inlet and outlet connectors installed inside the crankcase. Its working principle is as follows:

[0013] 1. System structure design: An oil connector is set below the crankcase, an oil inlet connector is set above it, and a 1000 ml transparent water bottle is installed at the pre-filter position, with water inlet and outlet interfaces on the water bottle.

[0014] 2. Oil pump booster circulation: Engine oil is drawn into the external oil pump through the bottom connector of the crankcase. Under the booster action of the oil pump, the oil flows into the water bottle ring pipe and is cooled in the ring pipe.

[0015] 3. Filtration system: The cooled engine oil enters a 500 ml sedimentation filter cup through a ring pipe. The filter cup can remove metal powder and impurities from the engine oil, ensuring that the engine oil maintains efficient lubrication.

[0016] 4. Temperature control effect: The cooled oil is pumped back into the crankcase inlet joint through the oil pump to ensure that the oil in the crankcase is kept in a suitable temperature range and to avoid lubrication failure caused by high temperature.

[0017] Furthermore, by installing a temperature sensor to monitor the temperature of the engine oil in the crankcase in real time, the over-temperature alarm system can automatically activate the cooling circulation device to prevent the equipment from overheating.

[0018] Furthermore, an automatic cleaning function is added to the external filtration system, which can maintain the filtration effect and reduce the frequency of maintenance by periodically or manually cleaning impurities in the oil.

[0019] Furthermore, a high-efficiency, low-power oil pump is employed to ensure that the system operates with low energy consumption while maintaining sufficient flow and pressure to maximize heat dissipation and filtration effects.

[0020] The present invention proposes an improved method for a crankshaft pump in a high-pressure cleaning equipment, the advantages of which are:

[0021] The dual M-shaped heat dissipation channel and built-in heat dissipation device design effectively reduce crankcase temperature, delay oil failure time, and extend crankshaft pump life to more than twice the original. The oil circulation cooling and filtration system controls oil temperature within a suitable range, reduces oil oxidation and wear, and extends oil life to more than four times the original. By improving equipment reliability, it reduces failures caused by high temperature and oil failure, and lowers equipment maintenance frequency and costs. Attached Figure Description

[0022] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0023] Figure 1 This is a flowchart of the oil circulation cooling and filtration system of the present invention;

[0024] Figure 2 This is a flowchart illustrating the coordinated temperature control and automatic cleaning process of the present invention. Detailed Implementation

[0025] The technical solutions in the embodiments of the present invention will be clearly and completely described below. 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.

[0026] It should be noted that the terms “front,” “back,” “left,” “right,” “up,” and “down” used in the following description refer to the directions shown in the attached diagram, while the terms “inside” and “outside” refer to the directions toward or away from the geometric center of a specific component, respectively.

[0027] In practical use, such as Figure 1 and Figure 2As shown, first ensure the crankshaft pump of the high-pressure cleaning equipment is installed, and that its thickened double M-shaped heat dissipation channel design at the bottom is correctly installed. Ensure the inlet and outlet water interfaces are intact. Check the water circulation pipe connections to ensure smooth water inflow and unobstructed return water flow. Check the installation of the external oil pump, transparent water bottle, ring pipe, filter cup, and temperature control system. Ensure the external oil pump interface is securely connected to the crankcase, and ensure the oil inlet and outlet joints are sealed. Install the temperature control sensor inside the crankcase and connect it to the over-temperature alarm system. Ensure the sensor can accurately monitor the oil temperature. Turn on the power to the high-pressure cleaning equipment and start the crankshaft pump. During startup, adjust the pump head pressure valve to ensure it is in normal operating condition. The system will begin running, and the oil flow from the crankshaft pump will begin entering the oil circulation cooling system. After the equipment starts, the temperature control sensor will begin real-time monitoring of the oil temperature in the crankcase. When the engine oil temperature is too high, the temperature control system automatically activates the cooling circulation system. Water circulates through the double M-shaped heat dissipation channels to remove excess heat. During operation, the pressure regulating valve in the crankshaft pump closes, and return water flows into the bottom double M-shaped heat dissipation channels. The cooling water carries away heat through these channels and is discharged through the outlet, ensuring the crankcase temperature remains within a suitable range. This process achieves constant temperature control, preventing engine oil from overheating and failing. Simultaneously, the external oil pump begins pressurization, drawing engine oil from the crankcase into a ring tube in a transparent water bottle for cooling. The cooled oil then flows through the ring tube into a sedimentation filter cup, which removes impurities and metal powder from the oil, ensuring oil quality. The cooled and filtered oil then flows back into the crankcase, ensuring lubrication and preventing oxidation and failure at high temperatures. The entire circulation process continues, ensuring the engine oil temperature and quality are maintained at optimal levels.

[0028] During operation, the temperature sensor continuously monitors the oil temperature. If the temperature exceeds the preset value, the over-temperature alarm system will be triggered, activating the cooling system and issuing an alarm signal. Operators can view real-time temperature data via the equipment panel or a mobile app to ensure safe operation. The external filtration system features an automatic cleaning function, which can be initiated periodically or manually to remove metal powder and impurities from the ring pipe and filter cup, ensuring optimal oil filtration. The equipment will automatically stop operating during the cleaning process.

[0029] The dual M-shaped heat dissipation channel design effectively controls the temperature within the crankcase, preventing oil oxidation and failure due to high temperatures. Oil lifespan can be increased by more than four times, while reducing equipment damage caused by overheating. The external oil pump and automatic cleaning system continuously maintain the oil within a suitable temperature range and remove impurities, preventing lubrication system failure and significantly reducing equipment failure rates. Equipment reliability is significantly improved, and maintenance frequency is greatly reduced.

[0030] The use of a high-efficiency, low-power oil pump ensures that the system can maintain normal operation with low energy consumption, further improving the system's energy efficiency.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, material, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, material, or apparatus.

[0032] 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. An improved method for a crankshaft pump in a high-pressure cleaning equipment, characterized in that, Including the following methods: Method 1: Dual M-shaped heat dissipation channel design:

1. Add a 10mm thickness to the bottom of the crankcase and form a double M-shaped heat dissipation channel in the thickened part. The double M-shaped heat dissipation channel is used to effectively disperse heat.

2. A water inlet and a water outlet are respectively provided at both ends of the heat dissipation channel, wherein the water inlet is connected to the return water pipe of the pump head pressure regulating valve, and the water outlet is directly connected to the drain pipe. Third, during operation, when the pressure regulating valve is closed, the return water flows into the heat dissipation channel and passes through the double M-shaped channel, using the water flow to remove the heat from the radiator, so as to ensure that the crankcase temperature is kept within a suitable range. Method 2: Built-in heat dissipation device design:

1. Double M-shaped metal heat sinks are used at the bottom of the crankcase to increase heat conduction efficiency and enable heat to be quickly transferred to the bottom of the crankcase. Second, ensure that the heat dissipation device covers the key heat source areas of the crankcase to avoid high temperature concentration in a certain part. Method 3: Oil circulation cooling and filtration system:

1. An oil outlet connector is installed below the crankcase, an oil inlet connector is installed above it, and a 1000 ml transparent water bottle is installed at the pre-filter position, with water inlet and outlet interfaces on the water bottle; 2. The engine oil is drawn into the external oil pump through the oil outlet at the bottom of the crankcase. Under the pressure of the oil pump, the oil flows into the water bottle ring pipe and is cooled in the ring pipe.

3. The cooled engine oil enters a 500 ml sedimentation filter cup through a ring pipe. The filter cup is used to remove metal powder and impurities from the engine oil to ensure that the engine oil maintains efficient lubrication. Fourth, the cooled and filtered engine oil is pumped back into the crankcase oil inlet to ensure that the engine oil in the crankcase is kept within a suitable temperature range.

2. An improved method for a crankshaft pump in a high-pressure cleaning equipment according to claim 1, characterized in that: A temperature sensor is installed to monitor the temperature of the engine oil in the crankcase in real time. When the temperature exceeds the preset value, the over-temperature alarm system automatically activates the cooling circulation device.

3. An improved method for a crankshaft pump in a high-pressure cleaning equipment according to claim 1, characterized in that: The external filtration system has an automatic cleaning function, which can periodically or manually remove impurities from the engine oil.

4. An improved method for a crankshaft pump in a high-pressure cleaning equipment according to claim 1, characterized in that: The oil pump used is a high-efficiency, low-power oil pump to ensure that the system operates with low energy consumption while maintaining sufficient flow and pressure.

5. An improved method for a crankshaft pump in a high-pressure cleaning equipment according to claim 1, characterized in that: The metal heat sink in the built-in heat dissipation device is made of copper and has a thickness of 0.8-1.2mm.

6. An improved method for a crankshaft pump in a high-pressure cleaning equipment according to claim 1, characterized in that: The sedimentation filter cup is equipped with a 5μm precision glass fiber filter element, and the bottom of the filter cup is provided with a magnetic adsorption layer.

7. An improved method for a crankshaft pump in a high-pressure cleaning equipment according to claim 1, characterized in that: The ring tube inside the transparent water bottle is a spiral copper ring tube.