CN111237571A

CN111237571A - Energy dissipation type right-angle hydraulic pipe joint

Info

Publication number: CN111237571A
Application number: CN202010017202.2A
Authority: CN
Inventors: 刘其奎
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-01-08
Filing date: 2020-01-08
Publication date: 2020-06-05

Abstract

The invention relates to the technical field of hydraulic equipment and discloses an energy dissipation type right-angle hydraulic pipe joint which comprises an adapter, a liquid inlet joint, a liquid outlet joint and a reversing arc surface, wherein the inner wall of the adapter is respectively provided with a flow guide pipe I and a flow guide pipe II, the axes of the flow guide pipe I and the flow guide pipe II are respectively arranged corresponding to the axes of the liquid inlet joint and the liquid outlet joint, the other ends of the flow guide pipe I and the flow guide pipe II extend out of the adapter, energy dissipation pipes which are communicated with each other are arranged at the other ends of the flow guide pipe I and the flow guide pipe II, and the energy dissipation pipes are hoses in a loose state. According to the invention, the honeycomb duct I and the honeycomb duct II are arranged at the corner of the adapter and are communicated through the energy dissipation pipe, and the energy dissipation pipe is a non-fixed hose, so that positive pressure fluctuation liquid oil can drive the energy dissipation pipe to vibrate, the original bearing vibration of the liquid inlet connector base is transferred to the energy dissipation pipe, and the connection stability of the liquid inlet connector is improved.

Description

Energy dissipation type right-angle hydraulic pipe joint

Technical Field

The invention relates to the technical field of hydraulic equipment, in particular to an energy dissipation type right-angle hydraulic pipe joint.

Background

The hydraulic pipe joint is a part for connecting a high-pressure oil pipe and a high-pressure oil pipe in a hydraulic system. The hydraulic pipe joint can be divided into a hydraulic hose, a high-pressure ball valve, a quick joint, a ferrule type pipe joint, a welded type pipe joint, a high-pressure hose, a transition type pipe joint, a three-way type pipe joint, a non-standard type pipe joint, a flared type pipe joint, a right-angle type pipe joint, a rotary type pipe joint, a quick joint, a stainless steel pipe joint and a copper joint.

The right-angle hydraulic pipe joint is mainly used for a part of hydraulic equipment, which needs to be connected and turned, because a hydraulic system works in various complex working conditions, pressure fluctuation always exists in the system, hydraulic pressure at the peak moment of the pressure fluctuation is 5-10 times of rated hydraulic pressure, when the hydraulic pressure is transmitted to the right-angle pipe joint, large impact force can be generated at the corner of the right-angle pipe joint due to the reversing of hydraulic oil, the impact force is borne by a threaded base of the pipe joint, in a system with frequent pressure fluctuation, the connection sealing performance of the pipe joint can be seriously influenced, hydraulic oil leakage is caused, and the hydraulic stability of the system is seriously damaged.

Disclosure of Invention

Aiming at the defects of the conventional right-angle hydraulic pipe joint in the background technology in the using process, the invention provides the energy dissipation type right-angle hydraulic pipe joint which has the advantages of self energy dissipation and shock absorption and solves the problems in the background technology.

The invention provides the following technical scheme: the utility model provides an energy dissipation formula right angle hydraulic pressure coupling, includes adapter, liquid inlet joint, goes out liquid joint and switching-over cambered surface, honeycomb duct I and honeycomb duct II have been seted up on the inner wall of adapter respectively, honeycomb duct I and honeycomb duct II's axis are arranged corresponding to liquid inlet joint and the axis that goes out the liquid joint respectively, honeycomb duct I and honeycomb duct II's the other end all stretches out the outside of adapter, and is equipped with the energy dissipation pipe that makes it communicate each other at honeycomb duct I and honeycomb duct II's the other end, the hose of energy dissipation pipe for being the relaxation state.

Preferably, the inner cavities of the draft tube I and the draft tube II are in a variable cross-section form from inside to outside.

Preferably, an energy dissipation spring and a force transmission guide cylinder are arranged at the inner cavity end of the liquid inlet connector, one end of the force transmission guide cylinder is fixedly connected to one end of the energy dissipation spring, and the other end of the energy dissipation spring is fixedly connected to the inner cavity end of the liquid inlet connector.

Preferably, the inner cavity of the force transmission guide cylinder is in an inverted cone shape.

The invention has the following beneficial effects:

1. according to the invention, the honeycomb duct I and the honeycomb duct II are arranged at the corner of the adapter, and the honeycomb duct I and the honeycomb duct II are communicated by the energy dissipation pipe, on one hand, positive pressure fluctuation is generated at the liquid inlet joint, when hydraulic oil flows to the honeycomb duct I, the hydraulic oil enters the energy dissipation pipe from the honeycomb duct I, and the energy dissipation pipe is a non-fixed hose, so that the positive pressure fluctuation liquid oil can drive the energy dissipation pipe to vibrate, the original bearing vibration of the liquid inlet joint base is transferred to the energy dissipation pipe, the connection stability of the liquid inlet joint is improved, the residual energy hydraulic oil enters the adapter from the honeycomb duct II to complete the force reversing, and the residual energy hydraulic oil is transferred out of the liquid inlet joint, so that the impact energy generated by the positive pressure fluctuation; on the other hand, the temporary hydraulic oil in the energy dissipation pipe can be supplemented into the adapter by the negative pressure fluctuation generated at the liquid outlet joint, so that the negative pressure fluctuation at the liquid outlet joint is quickly stable.

2. According to the invention, the inner diameters of the flow guide pipe I and the flow guide pipe II are set to be gradually changed, so that hydraulic oil generated by positive pressure fluctuation can impact the energy dissipation pipe at a higher flow speed, the vibration generated in the energy dissipation pipe is larger, and a higher energy dissipation effect is generated.

3. According to the invention, the energy dissipation spring and the force transmission guide cylinder are arranged at the inner end of the liquid inlet connector, the force transmission guide cylinder is used for bearing the positive pressure fluctuation transmitted from the liquid inlet connector, the energy dissipation spring is used for bearing, the first-order energy dissipation of the positive pressure fluctuation can be carried out, and the inner diameter of the force transmission guide cylinder is arranged in a conical surface manner.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the present invention with additional energy dissipating springs and force transmitting guide cylinders;

FIG. 3 is a schematic view of the flow of hydraulic oil under positive pressure fluctuations in accordance with the present invention;

figure 4 is a schematic view of the production and installation of the energy dissipation spring and the force transmission guide cylinder.

In the figure: 1. an adapter; 1a, an end pipe; 2. a liquid inlet joint; 3. a liquid outlet joint; 4. a reversing arc surface; 5. a flow guide pipe I; 6. a flow guide pipe II; 7. an energy dissipation pipe; 8. energy dissipation springs; 9. force transmission guide cylinder.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The term "positive pressure fluctuations" and "negative pressure fluctuations" in this application refer to pressure fluctuations above the nominal hydraulic pressure pumped by the hydraulic station and pressure fluctuations below the nominal hydraulic pressure generated by the line system, respectively. In addition, the hydraulic oil flows explained below are all performed under the positive pressure fluctuation condition, and the flow under the normal rated pressure is similar to the non-flow of the hydraulic oil in the energy dissipation pipe 7 under the macroscopic condition because the adapter 1 and the energy dissipation pipe 7 are filled with the hydraulic oil.

Referring to fig. 1-4, an energy dissipation type right-angle hydraulic pipe joint includes an adapter 1, the adapter 1 is a right-angle elbow, a liquid inlet joint 2 and a liquid outlet joint 3 are respectively arranged at two ends of a right-angled elbow of the adapter 1, the liquid inlet joint 2 and the liquid outlet joint 3 are used for connecting a hydraulic pipe, generally, the liquid inlet joint 2 is used for being fixed at the equipment end of a hydraulic station, a reversing arc surface 4 is arranged at the outer diameter corner of the inner cavity of the adapter 1, a flow guide pipe I5 and a flow guide pipe II 6 are respectively arranged on the inner wall of the adapter 1, the axes of the flow guide pipe I5 and the flow guide pipe II 6 are respectively arranged corresponding to the axes of the liquid inlet connector 2 and the liquid outlet connector 3, the other ends of the flow guide pipe I5 and the flow guide pipe II 6 extend out of the adapter 1, and energy dissipation pipes 7 which are communicated with each other are arranged at the other ends of the flow guide pipe I5 and the flow guide pipe II 6, and the energy dissipation pipes 7 are hoses in a loose state.

Therefore, when positive pressure fluctuation is generated at the liquid inlet connector 2, hydraulic oil enters the energy dissipation pipe 7 through the flow guide pipe I5 and then enters the adapter 1 from the flow guide pipe II 6 and flows to the liquid outlet connector 3, when the hydraulic oil enters the energy dissipation pipe 7, vibration can be generated due to impact resistance of a free hose of the energy dissipation pipe 7 to the hydraulic oil, so that impact vibration is transferred to the energy dissipation pipe 7 from the original connection and bearing at the liquid inlet connector 2 to achieve the purpose of energy dissipation, the hydraulic oil which is not completely dissipated enters the liquid outlet connector 3 in a coaxial flow mode to complete impact reversing, the amplitude of impact of the adapter 1 caused by the positive pressure fluctuation is reduced, and the flow mode of the hydraulic oil generated by the positive pressure fluctuation is shown by flow arrows in the figure 3.

For making the energy dissipation effect obviously improve, further, can establish the inner chamber of honeycomb duct I5 and honeycomb duct II 6 into the variable cross section form from inside to outside to when making in the adapter 1 hydraulic oil get into liquid inlet joint 2 impact energy dissipation pipe 7 with higher velocity of flow, produce bigger fluctuation and strike, the shake is more obvious promptly, and the energy dissipation is more showing.

In order to further provide a self-energy dissipation effect, an energy dissipation spring 8 and a force transmission guide cylinder 9 are arranged at the end of an inner cavity of the liquid inlet connector 2, the force transmission guide cylinder 9 is used for bearing direct impact of positive pressure fluctuation, the energy dissipation spring 8 is used for reducing energy caused by impact, and the energy dissipation spring 8 and the force transmission guide cylinder 9 are used for achieving first-order energy dissipation. Meanwhile, the inner cavity of the force transmission guide cylinder 9 is designed to be an inverted cone type, on one hand, the impact stress surface is improved under the normal passing condition when the hydraulic oil passes through the force transmission guide cylinder 9, on the other hand, the force transmission guide cylinder 9 can complete the guidance of the hydraulic oil, so that the hydraulic oil can stably enter the flow guide pipe I5, and the energy dissipation effect of the energy dissipation pipe 7 is improved.

Referring to fig. 4, under the condition that the energy dissipation spring 8 and the force transmission guide cylinder 9 are additionally arranged, the practical production implementation of the adapter 1, the liquid inlet connector 2 and the liquid outlet connector 3 can adopt split production installation, namely, the two right-angle ends of the adapter 1 are respectively provided with an end pipe 1a, the end pipes 1a and the liquid inlet connector 2 or the liquid outlet connector 3 are integrally formed, and then the end pipes are fixedly installed at the right-angle ends of the adapter 1.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an energy dissipation formula right angle hydraulic pressure coupling, includes adapter (1), liquid inlet joint (2), goes out liquid joint (3) and switching-over cambered surface (4), its characterized in that: honeycomb duct I (5) and honeycomb duct II (6) have been seted up on the inner wall of adapter (1) respectively, the axis of honeycomb duct I (5) and honeycomb duct II (6) is arranged corresponding to the axis of liquid inlet joint (2) and play liquid joint (3) respectively, the outside of adapter (1) is all stretched out to the other end of honeycomb duct I (5) and honeycomb duct II (6), and is equipped with energy dissipation pipe (7) that make it communicate each other at the other end of honeycomb duct I (5) and honeycomb duct II (6), the hose of energy dissipation pipe (7) for being the relaxation state.

2. An energy dissipating right angle hydraulic fitting according to claim 1, wherein: the inner cavities of the flow guide pipe I (5) and the flow guide pipe II (6) are in a variable cross-section form from inside to outside.

3. An energy dissipating right angle hydraulic fitting according to claim 1, wherein: an energy dissipation spring (8) and a force transmission guide cylinder (9) are arranged at the inner cavity end of the liquid inlet connector (2), one end of the force transmission guide cylinder (9) is fixedly connected to one end of the energy dissipation spring (8), and the other end of the energy dissipation spring (8) is fixedly connected to the inner cavity end of the liquid inlet connector (2).

4. An energy dissipating right angle hydraulic pipe joint according to claim 3, wherein: the inner cavity of the force transmission guide cylinder (9) is in an inverted cone shape.