Hydraulic transmission joint

Abstract

The utility model discloses a kind of hydraulic transmission joints, comprising: T-shaped pipe, as the pipe fitting of one-way input and two-way output to hydraulic fluid;Threaded joint, with external thread and respectively communicated on the port of T-shaped pipe two-way output;Y-shaped joint, by end head is communicated on the port of T-shaped pipe one-way input, and the outer end of end head extends two arc-shaped fairing axially towards outside, and the outer wall of fairing is aligned along the circumferential wall arc of end head, and shovel surface is set on the inner wall of the side of fairing away from end head, and the shovel surface of two fairings is symmetrically arranged, and gradually converges towards the position close to end head;Axial channel of T-shaped pipe is set in the interval of two fairings on end head.The utility model provides a kind of hydraulic transmission joint, optimizes flow field distribution, so that kinetic energy is converted into pressure energy when fluid enters larger flow-through space when shunting, realizes the effect of boost shunting and pressurization.

Description

Technical Field

[0001] This utility model relates to connectors, and more particularly to a hydraulic transmission connector. Background Technology

[0002] In hydraulic transmission systems, the flow divider is a key connecting component for converting a single-channel oil inlet to a multi-channel oil outlet. The T-tube structure is widely used due to its simplicity and compactness. However, traditional T-tubes exhibit significant hydrodynamic defects during flow division: when a high-speed jet with a circular cross-section enters the T-tube, the flow stream becomes concentrated, and the core region exhibits a high velocity, forming a "water arrow"-like flow structure that directly impacts the opposite sidewall of the branched tube. This impact not only causes sudden local pressure changes, generates vortices and flow separation, but also leads to a significant conversion of mechanical energy into heat, resulting in substantial pressure loss.

[0003] In steady flow of incompressible fluids, although the mass flow rate across each cross-section of the pipe is conserved, uneven kinetic energy distribution can severely affect the flow splitting efficiency and the synchronicity of downstream actuators. Despite some structural improvements, the flow field structure has not yet been fundamentally optimized. Utility Model Content

[0004] To address the shortcomings of the aforementioned technologies, this utility model provides a hydraulic transmission joint.

[0005] To solve the above technical problems, the present invention adopts a hydraulic transmission joint, comprising: T-tubes are used as fittings for one-way input and two-way output of hydraulic fluid; Threaded connector, with external threads and connected to the two output ports of the T-tube respectively; The Y-type connector connects to the input port of the T-type pipe via the end. The outer end of the end has two arc-shaped guide plates extending symmetrically outward. The outer walls of the guide plates are aligned arc-shaped along the periphery of the end. A shovel-shaped surface is formed on the inner wall of the guide plate on the side away from the end. The shovel-shaped surfaces of the two guide plates are symmetrically arranged and gradually converge towards the end. An axial channel connecting to the T-type pipe is formed on the end along the interval between the two guide plates.

[0006] Furthermore, the first passage of the T-tube serves as the channel for one input of hydraulic fluid, and the second and third passages of the T-tube serve as the channels for two outputs of hydraulic fluid. The first, second, and third passages are interconnected to form a T-shaped channel.

[0007] Furthermore, the cross-section of the axial channel is a long ring-shaped body enclosed by two parallel straight lines and two semi-circular curves.

[0008] Furthermore, the shape of the first passage matches the axial channel, and the first passage is also connected to the second and third passages through a long, circular cross-section.

[0009] Furthermore, the threaded connector is fitted with a rubber ring, which is located at the transition section between the threaded fabric of the threaded connector and the T-tube.

[0010] Furthermore, the Y-type connector has one or more locking bosses on its outer end.

[0011] This invention provides a hydraulic transmission joint that uses symmetrical arc-shaped guide plates inside the Y-type joint to gather and pre-compress the liquid flow towards the center and guide it to a unique long, circular axial channel, reshaping the traditional circular jet into a uniform, flat stream. This flat stream, with its wide face facing the two outlets of the T-type tube, optimizes the flow field distribution, thereby converting the kinetic energy of the fluid into pressure energy when it enters a larger flow space during diversion, achieving the functions of boosting diversion and pressurization. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0013] Figure 2 This is the front view of the present utility model.

[0014] Figure 3 This is a schematic diagram of the cross-sectional structure of a T-shaped tube.

[0015] Figure 4 This is a schematic diagram of the components of this utility model.

[0016] In the diagram: 1. T-tube; 2. Threaded connector; 3. Y-connector; 11. First passage; 12. Second passage; 13. Third passage; 31. End; 32. Guide plate; 33. Axial channel; 34. Locking boss; 35. Shovel face. Detailed Implementation

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0018] Figure 1 and Figure 2 The hydraulic transmission joint shown includes a T-tube 1, a threaded joint 2, and a Y-type joint 3.

[0019] Combination Figure 3As shown, the first passage 11 of the T-tube 1 serves as the channel for one input of hydraulic fluid, and the second passage 12 and the third passage 13 of the T-tube serve as the channels for two outputs of hydraulic fluid. The first passage 11, the second passage 12 and the third passage 13 are interconnected to form a T-shaped channel, which enables one input and two outputs of hydraulic fluid. The T-tube 1 serves as the core framework of the connector, dividing the hydraulic oil from the pump source into two equal paths, thereby driving two parallel actuators. The threaded connector 2 has external threads and is connected to the two output ports of the T-tube 1 respectively, providing mechanical connection with downstream equipment (such as oil pipes and hydraulic cylinders). The external threads provide strong tension and vibration resistance. The threaded connector 2 is covered with a rubber ring, which is located at the transition section between the threaded connector 2 and the T-tube 1, and is supplemented with an elastic seal for end face sealing. The connection between the threaded connector 2 and the T-tube 1 can be achieved by sealing welding, threaded connection, or sealing sleeve. Note that in this embodiment, the first passage 11 and the second passage 12 of the T-tube 1 are symmetrical in structure, and the threaded connectors 2 at both ends also adopt the same specifications.

[0020] Combination Figure 4As shown, the Y-type connector 3 is connected to the input port of the T-type pipe 1 via the end 31. The connection between the Y-type connector 3 and the T-type pipe 1 can be achieved through one of the following methods: sealed welding, threaded connection, or sealed sleeve. Two arc-shaped guide plates 32 extend symmetrically outward from the outer end face of the end 31. The outer walls of the guide plates 32 are aligned arc-shaped along the periphery of the end. This arc-shaped outer wall serves as a guide surface, guiding the Y-type connector to accurately insert into the matching female connector, avoiding misalignment and collision. A shovel surface 35 is provided on the inner wall of the guide plate 32 on the side away from the end. The shovel surfaces of the two guide plates are symmetrically arranged and gradually converge towards the end. An axial channel 33 connecting the T-type pipe 1 is provided on the end 31 along the interval between the two guide plates 32. The cross-section of the axial channel 33 is a long ring-shaped structure enclosed by two parallel straight lines and two semi-circular curves. Because the guide plate 32 protrudes axially from the end 31, the oil from the Y-joint will first impact the two guide plates 32, forming an area wall that is close to a "V" shape. Its inwardly converging slope acts like a guiding funnel, naturally and smoothly gathering and pre-compressing the incoming fluid towards the center, and smoothly guiding it into the axial channel 33. The shape of the first passage 11 matches the axial channel 33, and it is the only channel for the fluid to enter the T-tube 1. The first passage 11 is also connected to the second passage 12 and the third passage 13 through a long, ring-shaped cross-section. Its unique long, ring-shaped cross-section is no longer a traditional circular channel, but is elongated to create a flat flow field. This shape forces the fluid flowing through this area to form a flat, fully extended stream along the direction of the second passage 12 and the third passage 13. This is equivalent to shaping the most favorable shape for uniform flow distribution before the fluid enters the diversion intersection. The long, ring-shaped body reshapes the flow state, forcibly stretching the concentrated circular stream into a wide and thin flow layer. The flow direction of this flattened flow layer is precisely guided, with its wide side facing the inlets of the second and third passages 12 and 13. When this flattened flow layer reaches the branching point of the T-tube, the fluid enters the spacious T-tube cavity from the narrow first passage 11. As the fluid enters the low-speed zone from the first passage 11, its kinetic energy is converted into pressure energy, causing an increase in static pressure and achieving a pressurization effect. Therefore, their coordinated work creates a smooth "transmission" process of preparation-transition-execution. The guide vane 32 is responsible for receiving and pre-treating the fluid; the axial channel 33 is responsible for shaping the pre-treated fluid into the final desired flow pattern; and the T-tube performs the final branching task.

[0021] The Y-type connector 3 has one or more locking bosses 34 on its end 31. When the end 31 is inserted into the female connector, the female connector can be a connecting hose. The high specific pressure contact surface generated by the elastic deformation of the pipe wall achieves a seal, and even the clamping effect of the external clamp can achieve a further seal. Of course, the outer wall of the end 31 can also be machined with external threads, and the female connector has a corresponding internal thread. In this case, the female connector is a rigid pipe. By rotating and tightening the threads, a strong axial force is generated, which presses the sealing surface of the connector to achieve a seal. The locking boss 34 here is not used as the main locking structure, but as a safety measure to prevent loosening. An elastic sealing ring can also be placed on the end face or shoulder of the end 31. The axial pressure generated by tightening the threads presses the sealing ring to achieve a seal.

[0022] This invention uses symmetrical arc-shaped guide plates inside the Y-type connector to gather and pre-compress the liquid flow towards the center, and guide it to a unique long, circular axial channel, reshaping the traditional circular jet into a uniform, flat stream. This flat stream, with its wide face facing the two outlets of the T-type tube, optimizes the flow field distribution, thereby converting the kinetic energy of the fluid into pressure energy when it enters a larger flow space during diversion, achieving the effects of boosting diversion and pressurization.

[0023] The above embodiments are not intended to limit the present invention, nor is the present invention limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the technical solution of the present invention are also within the protection scope of the present invention.

Claims

1. A hydraulic transmission joint, characterized in that, include: T-tube (1), used as a fitting for one-way input and two-way output of hydraulic fluid; The threaded connector (2) has an external thread and is connected to the two output ports of the T-tube (1); Y-type connector (3) is connected to the port of input of T-type tube (1) through end (31). The outer end face of end (31) extends outward symmetrically with two arc-shaped guide plates (32). The outer wall of guide plate (32) is aligned arc-shaped along the peripheral wall of end. A shovel surface (35) is provided on the inner wall of guide plate (32) away from end. The shovel surfaces of the two guide plates are symmetrically arranged and gradually converge towards the end. An axial channel (33) connecting T-type tube (1) is provided on end (31) along the interval between the two guide plates (32).

2. The hydraulic transmission joint according to claim 1, characterized in that: The first passage (11) of the T-tube (1) serves as a channel for one input of hydraulic fluid, and the second passage (12) and the third passage (13) of the T-tube serve as channels for two outputs of hydraulic fluid. The first passage (11), the second passage (12) and the third passage (13) are interconnected to form a T-shaped channel.

3. The hydraulic transmission joint according to claim 2, characterized in that: The cross-section of the axial channel (33) is a long ring-shaped body enclosed by two parallel straight lines and two semi-circular curves.

4. The hydraulic transmission joint according to claim 3, characterized in that: The shape of the first passage (11) matches the axial channel (33), and the first passage (11) is also connected to the second passage (12) and the third passage (13) through a long ring-shaped body with a cross-section.

5. The hydraulic transmission joint according to claim 3, characterized in that: The threaded connector (2) is fitted with a rubber ring, which is located at the transition section between the threaded fabric of the threaded connector (2) and the T-tube (1).

6. The hydraulic transmission joint according to claim 3, characterized in that: The Y-type connector (3) has one or more locking bosses (34) on its end (31).

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