Construction machine multi-way valve body fitting

Abstract

The utility model discloses engineering machinery multiway valve body accessories relates to multiway valve technical field, including main valve body, the both sides of main valve body are provided with a plurality of oil inlet and oil outlet, the oil inlet and oil outlet outside all are fixedly connected with helical line shunt passage, the inner chamber of helical line shunt passage is towards the oil inlet one side and is opened with the liquid inlet tapering runner, when oil liquid is in through oil inlet and oil outlet send, all first pass through helical line shunt passage, and the oil liquid of passing through helical line shunt passage first pass through liquid inlet tapering runner, effectively reduced the impact force of oil liquid, improved the stability of oil liquid. Oil liquid continues to flow in helical line shunt passage, gradually enters the export diffusion chamber, and the design of export diffusion chamber makes oil liquid can diffuse steadily when flowing out, then is sent into main valve body and is sent into oil equipment, further reduces the turbulent flow and energy loss of oil liquid.

Description

Technical Field

[0001] This utility model relates to the field of multi-way valve technology, specifically to multi-way valve body accessories for engineering machinery. Background Technology

[0002] Multi-way valves are key components widely used in equipment across various industries, including engineering machinery, mining, metallurgical processing, shipbuilding, and pharmaceutical production. They precisely control the movement of the valve core according to the specific requirements of the main system, thereby enabling directional switching and speed regulation of multiple actuators. These valves play a crucial role in ensuring the high efficiency and stability of equipment operation, allowing various mechanical devices to maintain good performance in complex and changing working environments.

[0003] Traditional multi-way valve body components for engineering machinery commonly employ L-shaped or T-shaped orthogonal oil passage structures during design and manufacturing. This structure significantly impacts oil flow as it passes through the valve core cavity, causing severe turbulence due to the sudden sharp turns in the oil passages. This turbulence not only disrupts the normal flow path but also induces additional energy loss. Actual measurements and data analysis reveal a significant pressure loss due to this structure, with measured values ​​ranging from 0.8 to 1.2 MPa. This value has a substantial negative impact on the overall system efficiency and performance in practical applications. Therefore, we propose a new type of multi-way valve body component for engineering machinery. Utility Model Content

[0004] The purpose of this invention is to address the problem that traditional multi-way valve body accessories for engineering machinery commonly employ L-shaped or T-shaped orthogonal oil passage structures in their design and manufacturing. In this structure, the oil flow is significantly affected by the sudden sharp turn in the oil passage as it flows through the valve core cavity, resulting in severe turbulence. This turbulence not only disrupts the normal flow path of the oil but also causes additional energy loss during flow. Actual measurements and data analysis have revealed that this structure leads to significant pressure loss, with measured pressure loss values ​​ranging from 0.8 to 1.2 MPa. This value has a considerable negative impact on the overall efficiency and performance of the system in practical applications. This invention provides multi-way valve body accessories for engineering machinery.

[0005] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0006] The multi-way valve body accessory for engineering machinery includes a main valve body. Multiple oil inlet ports and oil outlet ports are respectively provided on both sides of the main valve body. A helical diversion channel is fixedly connected to the outer side of each oil inlet port and oil outlet port. The inner cavity of the helical diversion channel has an inlet converging flow channel facing the oil inlet side, and an outlet diffusion cavity is provided facing the oil outlet side. The outlet diffusion cavity and the inlet converging flow channel are interconnected. Multiple helical guide vanes are fixedly arranged on the inner wall of the inlet converging flow channel.

[0007] Furthermore, the spiral guide vanes are Archimedean spiral-shaped guide vanes, and multiple spiral guide vanes are arranged in a ring array.

[0008] Furthermore, a guide ridge is fixedly connected to the inner wall of the outlet diffusion cavity. The height of the guide ridge decreases from 2mm at the inlet to 0mm at the outlet, and the direction of rotation of the guide ridge is opposite to that of the spiral guide blade.

[0009] Furthermore, a connecting diverter seat is fixedly connected to the outer side of the spiral diverter channel on one side of the oil outlet interface, and a star-shaped fixing frame is fixedly connected to the inner wall of the oil inlet interface and the connecting diverter seat near the outlet diffuser cavity. A dispersion cone is fixedly connected to the star-shaped fixing frame facing the outlet diffuser cavity, and the dispersion cone is inserted into the center of the outlet diffuser cavity.

[0010] Furthermore, the oil inlet side of the spiral diversion channel is provided with a threaded step, and the spiral diversion channel is threadedly connected to the oil outlet and the oil inlet pipe joint on the oil inlet side through the threaded step.

[0011] Furthermore, a threaded sleeve is provided on the oil outlet side of the helical diversion channel, and the helical diversion channel is threadedly connected to the oil inlet and the connecting diversion seat through the threaded sleeve.

[0012] The beneficial effects of this utility model are as follows:

[0013] 1. In this invention, when the oil enters through the inlet and exits through the outlet, it first passes through a spiral diversion channel. The oil then flows through the inlet converging channel, where spiral guide vanes initially guide the flow, creating a spiral flow within the channel. This effectively reduces the impact force and improves the stability of the oil. The oil continues to flow within the channel, gradually entering the outlet diffuser chamber. The outlet diffuser chamber's design allows for smooth diffusion during outflow before being fed into the main valve body and the equipment using the oil, further reducing turbulence and energy loss. Through this design, the multi-way valve body accessory for construction machinery achieves efficient and stable oil flow, improving the machinery's working efficiency and service life. Simultaneously, the combined use of the spiral diversion channel, the inlet converging channel, and the outlet diffuser chamber ensures thorough dispersion and mixing of the oil during flow, further enhancing the performance of the construction machinery.

[0014] 2. The Archimedean spiral shape of the spiral guide vanes in this invention allows for a more uniform distribution of oil as it flows through the vanes, enhancing the spiral flow effect. Each spiral guide vane is precisely manufactured according to the Archimedean spiral shape, ensuring that the oil is guided uniformly and continuously during flow. Furthermore, the annular array of multiple spiral guide vanes not only improves the oil diversion efficiency but also enhances the stability and durability of the structure. This optimization of design details further improves the overall performance and working efficiency of multi-way valve body accessories for engineering machinery.

[0015] 3. This invention further enhances the oil dispersion effect within the outlet diffusion chamber through the design of a star-shaped fixing frame and a dispersion cone. The star-shaped fixing frame provides a stable support structure, while the dispersion cone is inserted into the center of the outlet diffusion chamber, guiding the oil more evenly to each oil outlet port. This design not only improves the oil dispersion efficiency but also ensures the stability and uniformity of the oil during outflow, further reducing energy loss and turbulence. Attached Figure Description

[0016] Figure 1 This is a perspective view of the present invention;

[0017] Figure 2 This is a front sectional view of the present invention;

[0018] Figure 3 This is a utility model Figure 2 Enlarged view of point A in the middle;

[0019] Figure 4 This is a side sectional view of the connection splitter seat of this utility model.

[0020] Reference numerals in the attached diagram: 1. Main valve body; 2. Oil inlet port; 3. Oil outlet port; 4. Helical flow divider channel; 5. Inlet gradually narrowing flow channel; 6. Helical guide vane; 7. Outlet diffuser cavity; 8. Connecting flow divider seat; 9. Star-shaped fixing frame; 10. Dispersion cone; 11. Flow guide ridge. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0022] Please see Figure 1 - Figure 4This utility model provides a multi-way valve body accessory for engineering machinery, including a main valve body 1. The main valve body 1 has multiple oil inlet ports 2 and oil outlet ports 3 on both sides. A spiral diversion channel 4 is fixedly connected to the outer side of each oil inlet port 2 and oil outlet port 3. The inner cavity of the spiral diversion channel 4 has an inlet converging flow channel 5 facing the oil inlet side, and an outlet diffusion cavity 7 facing the oil outlet side. The outlet diffusion cavity 7 is interconnected with the inlet converging flow channel 5. Multiple spiral guide vanes 6 are fixedly arranged on the inner wall of the inlet converging flow channel 5.

[0023] The working principle and usage process of this utility model are as follows: During use, the oil enters the main valve body 1 through the inlet port 2. After being diverted by the valve core within the main valve body 1, it is discharged from the corresponding outlet port 3. The structure and working principle of the valve core are the same as those of existing electromagnetic multi-way valves. The movement of the valve core is driven by electromagnetic force, thereby achieving precise control of the oil flow direction and flow rate. When the oil enters through the inlet port 2 and exits through the outlet port 3, it first passes through the spiral diversion channel 4. The oil passing through the spiral diversion channel 4 first passes through the inlet converging flow channel 5. At this time, the spiral guide vanes 6 initially guide the oil, causing it to flow in a spiral shape within the spiral diversion channel 4, effectively reducing the impact force of the oil and improving its stability. The oil continues to flow within the spiral diversion channel 4, gradually entering the outlet diffuser chamber 7. The design of the outlet diffuser chamber 7 allows the oil to diffuse smoothly during outflow before being sent to the main valve body 1 and the oil-using equipment, further reducing turbulence and energy loss. Through the design of this utility model, the multi-way valve body accessory for construction machinery can achieve efficient and stable oil flow, improving the working efficiency and service life of the construction machinery. At the same time, the coordinated use of the helical diversion channel 4, the inlet gradually narrowing flow channel 5, and the outlet diffusion chamber 7 ensures that the oil is fully dispersed and mixed during the flow process, further improving the performance of the construction machinery.

[0024] In this embodiment, preferably, the spiral guide vane 6 is an Archimedean spiral-shaped guide vane, and multiple spiral guide vanes 6 are arranged in a ring array; this allows the oil to be more evenly distributed when flowing through the spiral guide vane 6, enhancing the spiral flow effect. Each spiral guide vane 6 is precisely manufactured according to the Archimedean spiral shape, ensuring that the oil is uniformly and continuously guided during flow. Furthermore, the ring array arrangement of multiple spiral guide vanes 6 not only improves the oil diversion efficiency but also enhances the structural stability and durability. This optimization of design details further improves the overall performance and working efficiency of multi-way valve body accessories for engineering machinery.

[0025] In this embodiment, preferably, a guide ridge 11 is fixedly connected to the inner wall of the outlet diffuser cavity 7. The height of the guide ridge 11 decreases from 2mm at the inlet to 0mm at the outlet, and the rotation direction of the guide ridge 11 is opposite to that of the spiral guide vane 6. Through the design of the guide ridge 11, the oil can achieve a smoother transition when flowing out of the outlet diffuser cavity 7, further reducing the formation of turbulence and eddies. The gradual decrease in the height of the guide ridge 11 from 2mm at the inlet to 0mm at the outlet allows the oil to gradually adapt to the changes in flow velocity and pressure at the outlet during the flow process, thereby achieving smooth diffusion of the oil. At the same time, the rotation direction of the guide ridge 11 is opposite to that of the spiral guide vane 6. This opposite rotation direction design further enhances the stability of the oil, ensuring that the oil maintains a uniform and stable flow state when flowing out of the multi-way valve body components.

[0026] In this embodiment, preferably, a connecting diverter seat 8 is fixedly connected to the outer side of the helical diverter channel 4 on one side of the oil outlet port 3, and a star-shaped fixing frame 9 is fixedly connected to the inner wall of the oil inlet port 2 and the connecting diverter seat 8 near the outlet diffuser cavity 7. A dispersion cone 10 is fixedly connected to the star-shaped fixing frame 9 facing the outlet diffuser cavity 7, and the dispersion cone 10 is inserted into the center of the outlet diffuser cavity 7. Through the design of the star-shaped fixing frame 9 and the dispersion cone 10, the dispersion effect of the oil in the outlet diffuser cavity 7 is further enhanced. The star-shaped fixing frame 9 provides a stable support structure, while the dispersion cone 10 is inserted into the center of the outlet diffuser cavity 7, guiding the oil more evenly to each oil outlet port 3. This design not only improves the dispersion efficiency of the oil, but also ensures the stability and uniformity of the oil during outflow, further reducing energy loss and the occurrence of turbulence.

[0027] In this embodiment, preferably, the oil inlet side of the helical diversion channel 4 is provided with a threaded step, and the helical diversion channel 4 is threadedly connected to the oil outlet port 3 and the oil inlet port 2 via the threaded step. The threaded step design achieves a secure connection between the helical diversion channel 4 and the oil inlet port, ensuring not only the oil's sealing performance but also facilitating installation and disassembly. This threaded connection method has the advantages of simple structure, reliable connection, and easy maintenance, improving the practicality and convenience of multi-way valve body accessories for engineering machinery.

[0028] In this embodiment, preferably, a threaded sleeve is provided on the oil outlet side of the helical diversion channel 4, and the helical diversion channel 4 is threadedly connected to the oil inlet port 2 and the connecting diversion seat 8 via the threaded sleeve. The threaded sleeve design further enhances the connection strength between the helical diversion channel 4 and the connecting diversion seat 8, ensuring the stability and sealing of the oil during flow. This threaded sleeve connection method is not only easy to operate but also improves the durability and reliability of the multi-way valve body components in engineering machinery, enabling the entire valve body component to maintain good performance in complex and changing working environments. The standardized connection method facilitates the replacement of the helical diversion channel 4, significantly improving the convenience of maintenance and repair.

[0029] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A construction machine multi-way valve block fitting, characterized by: Includes a main valve body (1), on both sides of the main valve body (1) are provided multiple oil inlet ports (2) and oil outlet ports (3), and a spiral diversion channel (4) is fixedly connected to the outside of the oil inlet ports (2) and the oil outlet ports (3). The inner cavity of the spiral diversion channel (4) is provided with a liquid inlet converging channel (5) facing the oil inlet side, and an outlet diffusion cavity (7) is provided with the spiral diversion channel (4) facing the oil outlet side. The outlet diffusion cavity (7) and the liquid inlet converging channel (5) are interconnected. Multiple spiral guide vanes (6) are fixedly arranged on the inner wall of the liquid inlet converging channel (5).

2. The engineering machinery multi-way valve body accessory according to claim 1, characterized in that: The spiral guide vane (6) is an Archimedean spiral-shaped guide vane, and multiple spiral guide vanes (6) are arranged in a ring array.

3. The engineering machinery multi-way valve body accessory according to claim 1, characterized in that: The inner wall of the outlet diffusion cavity (7) is fixedly connected with a guide ridge (11). The height of the guide ridge (11) decreases from 2 mm at the inlet to 0 mm at the outlet, and the direction of rotation of the guide ridge (11) is opposite to that of the spiral guide blade (6).

4. The engineering machinery multi-way valve body accessory according to claim 1, characterized in that: A connecting diverter seat (8) is fixedly connected to the outside of the spiral diverter channel (4) on one side of the oil outlet port (3), and a star-shaped fixing frame (9) is fixedly connected to the inner wall of the oil inlet port (2) and the connecting diverter seat (8) on the side close to the outlet diffuser cavity (7). A dispersion cone (10) is fixedly connected to the star-shaped fixing frame (9) on the side facing the outlet diffuser cavity (7), and the dispersion cone (10) is inserted into the center of the outlet diffuser cavity (7).

5. The engineering machinery multi-way valve body accessory according to claim 1, characterized in that: The spiral diversion channel (4) has a threaded step on the oil inlet side, and the spiral diversion channel (4) is threadedly connected to the oil outlet (3) and the oil inlet pipe joint on the oil inlet (2) side through the threaded step.

6. The engineering machinery multi-way valve body accessory according to claim 4, characterized in that: The oil outlet side of the spiral diversion channel (4) is provided with a threaded sleeve, and the spiral diversion channel (4) is threadedly connected to the oil inlet (2) and the connecting diversion seat (8) through the threaded sleeve.

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