Bidirectional lubricating and cooling assembly for power head
By designing a bidirectional lubrication and cooling assembly for the power head, the problems of low efficiency and impurity residue when changing the inlet and outlet of the traditional power head are solved. This achieves uniform oil supply and efficient cooling, extends the equipment life, and reduces noise.
Patent Information
- Application Number
- CN202511634295.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-10
- Publication Date
- 2025-12-26
AI Technical Summary
Traditional power heads with bidirectional lubrication systems are inefficient when changing the inlet and outlet ports and are prone to leaving impurities, which affects their service life.
A bidirectional lubrication and cooling assembly for a power head, comprising a plunger motor, a filter, and a cooling component, was designed. Through structures such as lubrication pipelines, spray nozzles, filters, and split cooling chambers, it achieves bidirectional oil supply and efficient cooling of lubricating oil, prevents impurities from entering, and optimizes the spatial layout.
It achieves uniform oil supply during forward and reverse rotation, reduces friction and temperature, extends equipment life, improves work efficiency, and reduces noise.
Smart Images

Figure CN121199753A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to a power head, and more particularly to a bidirectional lubrication and cooling assembly for a power head. Background Technology
[0002] The power head is a power component that integrates main motion and feed motion functions. It uses a motor-driven gear transmission mechanism to achieve machining such as boring, milling, and drilling. Some models achieve linear motion through guide rails. Some traditional products require interruption of pipeline delivery for bidirectional lubrication and filtration, and are prone to impurity residue in critical locations, resulting in relatively limited effectiveness and a long-term impact on service life. Summary of the Invention
[0003] To address the shortcomings of existing technologies, this invention provides a bidirectional lubrication and cooling assembly for a power head.
[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a bidirectional lubrication and cooling assembly for a power head, comprising a power head, a lubrication pipeline, and a lubrication pump connected to the lubrication pipeline, and further comprising a plunger motor, a filter, and a cooling component. The plunger motor is gear-driven to the power head, and the plunger motor is linked to the lubrication pump. The power head is provided with a housing and a gearbox housing. The lubrication pipeline is provided with at least one spray port connecting the power head and the housing. The filter and the cooling component are connected to the lubrication pipeline.
[0005] The filter is equipped with a filter screen and is connected to the spray port at the housing.
[0006] The cooling component includes a split cooling chamber, which contains several branch pipes, and the cold flow cooling chamber is also provided with a main inlet pipe and a main outlet pipe connecting the branch pipes.
[0007] The cooling chamber is also equipped with a cooling fan.
[0008] A flow divider is provided between the cooling component and each spray nozzle.
[0009] The housing is provided with a vent to balance the internal and external pressures.
[0010] A transmission transition shaft is provided between the piston motor and the power head.
[0011] The plunger motor is located on the top surface of the lubrication pump, the filter is located at the bottom of the lubrication pump, and the cooling component is located on the side of the lubrication pump.
[0012] The beneficial effects of the present invention are as follows: The bidirectional lubrication and cooling assembly of the power head provided by the present invention is a new type of lubricating oil pump developed based on the market. Its feature is that when the pump shaft rotates in the forward and reverse directions, the oil inlet and outlet ports do not change, and oil is supplied in the same direction in equal quantities. It has high gas efficiency, light weight, low noise, and long service life, and solves the problem of work efficiency when changing the oil inlet and outlet ports in the forward and reverse directions. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the assembly structure of the invention and the power head;
[0014] Figure 2 This is a side view of the assembly structure of the power head of the present invention;
[0015] Figure 3 This is a schematic diagram of the bottom surface of the assembly structure with the power head of the present invention;
[0016] Figure 4 This is a schematic diagram of the assembly structure of the piston motor and the transition shaft of the present invention;
[0017] Figure 5 This is a schematic diagram of the filter structure of the present invention;
[0018] Figure 6 This is a schematic diagram of the cooling component of the present invention. Detailed Implementation
[0019] like Figures 1-6 The diagram shows a bidirectional lubrication and cooling assembly for a power head, including a power head 1, lubrication lines, and a lubrication pump 11 connected to the lubrication lines. It also includes a plunger motor 3, a filter 5, and a cooling component 7. The plunger motor 3 is gear-driven to the power head 1, and the plunger motor 3 is linked to the lubrication pump 11. The power head 1 is externally housed in a housing and a gearbox housing 10. The lubrication lines have at least one spray nozzle 2 connecting the power head 1 and the housing 10, and an oil pipe connector 6. The filter 5 and the cooling component 7 are connected to the lubrication lines. The plunger motor 3 is a type of hydraulic motor. In this design, the plunger motor 3 provides a fixed and precise transmission ratio for the power head 1, ensuring stable operation, long service life, low maintenance costs, and adaptability to low-speed to high-speed transmission requirements. The spray nozzle 2 leads at least to the housing of the power head 1. The plunger motor 3 is located at the top of the lubrication pump. The filter 5 is located at the bottom of the pre-lubricating oil pump and is configured to connect to the oil outlet of the housing 10 for easy filtration and subsequent connection to the cooler. The cooling component 7 is configured to reduce the temperature of the flowing lubricating fluid. With this design, lubricating oil is sprayed from the spray nozzle 2 onto the rotating bearings and gears inside the power head 1, which can reduce the friction at the rotating parts of the bearings and gears, and also reduce the temperature of the bearings and gears through the lubricating oil.
[0020] The filter 5 is equipped with a filter screen and is connected to the spray port 2 at the housing 10. The filter screen filters the lubricating fluid flowing from inside the housing 10 to prevent impurities from entering the pipeline of the bidirectional lubricating oil pump and causing blockage.
[0021] The cooling component 7 includes a split-flow cooling chamber, which contains several branch pipes. The cold flow cooling chamber is also equipped with a main inlet pipe 8 and a main outlet pipe 9 connecting the branch pipes. The split-flow cooling chamber is also equipped with a cooling fan 14, which is opposite to the branch pipes. The branch pipes divide the large stream of lubricating oil into several smaller streams, while the fan is more efficient in cooling the lubricating oil.
[0022] A distributor is provided between the cooling component 7 and each spray nozzle 2, which can converge the lubricating fluid to equalize the temperature. The housing is provided with a vent to balance the internal and external pressure, which helps to avoid the pressure difference caused by lubricating fluid loss and its resulting effects. The filter 5 is provided with a filter inlet 12 and a filter outlet 13, which will not be described or limited in detail here.
[0023] Lubricating oil is sprayed from spray nozzle 2 onto the bearings and gears of the power head 1. The lubricating oil drips down within the power head 1 and housing 10, eventually converging and flowing through the oil outlet at the bottom of the housing 10 to the filter 5 to remove impurities. It is then pumped to the cooling component 7 for cooling. After cooling, the lubricating oil is sprayed out again through the pipe from spray nozzle 2. The cooled lubricating oil reduces both the friction at the rotating parts of the bearings and gears and lowers their temperature.
[0024] The piston motor 3 and the power head 1 are provided with a transmission transition shaft 4. The transition shaft 4 can serve as a connecting component between the gearbox and the drill rod shaft at the power head 1. The piston motor 3 borrows the rotational power provided by the power head 1 to drive the drill rod, which saves energy and can ensure that it works or stops at the same time as the power head 1.
[0025] The plunger motor 3 is located on the top surface of the lubrication pump 11, the filter 5 is located at the bottom of the lubrication pump 11, and the cooling component 7 is located on the side of the lubrication pump 11. This layout is beneficial for optimizing the spatial structure and is also suitable for structural designs that utilize natural flow, such as pipe connections or cavities. Further elaboration and limitations will not be provided here.
[0026] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. At the same time, the basic principles, main features, and advantages of this invention have been shown and described above, which should be understood by those skilled in the art.
Claims
1. A bidirectional lubrication and cooling assembly for a power head, comprising a power head, lubrication lines, and a lubrication pump connected to the lubrication lines, characterized in that, It also includes a plunger motor, a filter, and a cooling component. The plunger motor is connected to the power head via gear transmission. The plunger motor is also linked to the lubrication pump. The power head is equipped with a housing and a gearbox. The lubrication pipeline has at least one spray port connecting the power head and the housing. The filter and cooling component are connected to the lubrication pipeline.
2. The bidirectional lubrication and cooling assembly for a power head as described in claim 1, characterized in that, The filter is equipped with a filter screen and is connected to the spray port at the housing.
3. A bidirectional lubrication and cooling assembly for a power head as described in claim 1 or 2, characterized in that, The cooling component includes a split cooling chamber, which contains several branch pipes, and the cold flow cooling chamber is also provided with a main inlet pipe and a main outlet pipe connecting the branch pipes.
4. The bidirectional lubrication and cooling assembly for a power head as described in claim 3, characterized in that, The cooling chamber is also equipped with a cooling fan.
5. The bidirectional lubrication and cooling assembly for a power head as described in claim 3, characterized in that, A flow divider is provided between the cooling component and each spray nozzle.
6. The bidirectional lubrication and cooling assembly for a power head as described in claim 1, characterized in that, The housing is provided with a vent to balance the internal and external pressures.
7. The bidirectional lubrication and cooling assembly for a power head as described in claim 1, characterized in that, A transmission transition shaft is provided between the piston motor and the power head.
8. The bidirectional lubrication and cooling assembly for a power head as described in claim 1, characterized in that, The plunger motor is located on the top surface of the lubrication pump, the filter is located at the bottom of the lubrication pump, and the cooling component is located on the side of the lubrication pump.