Oil liquid conveying pipeline structure of hydraulic machine

Abstract

The utility model provides an oil conveying pipeline structure of a hydraulic machine, which comprises a pipeline joint and a cooling adjusting mechanism, the outer side surface of the pipeline joint is fixedly connected with a sealing joint, one end of the sealing joint is fixedly connected with a pressure adjusting valve, one end of the pressure adjusting valve is fixedly connected with a hydraulic oil pipe, and the hydraulic oil pipe is fixedly connected with a hydraulic oil pump. A cooling adjusting mechanism is arranged on the outer side surface of the hydraulic oil pipe, a leakage adjusting mechanism is arranged on the outer side surface of the hydraulic oil pipe, automatic cooling of the hydraulic oil pipe is achieved, and system faults caused by too high temperature are avoided; when the temperature rises, inflow of a cooling medium is automatically started, manual intervention is not needed, intelligent adjustment and circulation of the water storage tank and the mounting shell are achieved, the cooled medium is conveyed back to the water storage tank through the circulating pump, continuous use of the cooling medium is ensured, resource waste is reduced, and the overall structure is simple.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic press pipelines, in particular to an oil delivery pipeline structure of a hydraulic press. Background Technique

[0002] The hydraulic press pipeline is an important part of the hydraulic system for transmitting liquid pressure. It consists of high-pressure oil pipes, connectors, valves, and joints, etc., and is responsible for transmitting hydraulic oil from the hydraulic pump to the hydraulic cylinder, motor, or other actuators. The quality and design of the hydraulic pipeline are crucial for the performance and reliability of the entire hydraulic system. Usually, materials with high pressure resistance and corrosion resistance, such as steel pipes or alloy pipes, are used to ensure safety and stability under high pressure and complex working environments. Reasonably arranging and fixing the pipeline can reduce vibration and noise and extend the service life of the equipment. At the same time, regularly inspecting and maintaining the hydraulic pipeline helps to promptly discover and solve problems such as leakage and blockage, ensuring the efficient operation of the hydraulic system. During the use process, a large amount of heat is generated when the hydraulic oil is under high pressure and continuous working conditions, resulting in an increase in temperature. If the oil temperature is too high, it will reduce the viscosity of the hydraulic oil, affect the lubrication effect and sealing performance of the system, and further lead to increased equipment wear and leakage. Therefore, there is a particular need for an oil delivery pipeline structure of a hydraulic press.

[0003] However, for the existing oil output pipelines, during the use process of most oil output pipelines, it is not convenient to check the overheated parts. Usually, it relies on an external cooling system or intermittent cooling, lacking automated adjustment means and being difficult to respond to the change of oil temperature in real time. This will result in a lag in the cooling effect, unable to control the temperature in a timely and effective manner, and affecting the continuous and stable operation of the equipment. Content of the Utility Model

[0004] The purpose of the utility model is to provide an oil delivery pipeline structure of a hydraulic press to solve the problems in the above-mentioned background technique that for the existing oil output pipelines, during the use process, it is not convenient to check the overheated parts, usually relying on an external cooling system or intermittent cooling, lacking automated adjustment means, being difficult to respond to the change of oil temperature in real time, resulting in a lag in the cooling effect, unable to control the temperature in a timely and effective manner, and affecting the continuous and stable operation of the equipment.

[0005] To achieve the above purpose, the utility model provides an oil delivery pipeline structure of a hydraulic press, including a pipeline joint and a cooling adjustment mechanism. The outer surface of the pipeline joint is fixedly connected with a sealing joint. One end of the sealing joint is fixedly connected with a pressure regulating valve. One end of the pressure regulating valve is fixedly connected with a hydraulic oil pipe. The outer surface of the hydraulic oil pipe is provided with a cooling adjustment mechanism, and the outer surface of the hydraulic oil pipe is provided with a leakage adjustment mechanism.

[0006] Preferably, the cooling adjustment mechanism includes a mounting housing, a water storage tank, a circulation pump, a pipe sleeve, a deformation sheet, a connecting pipe, a lifting valve, and a counterweight. The outer surface of the hydraulic oil pipe is sleeved with a mounting housing. The top surface of the mounting housing is fixedly connected with a water storage tank. One end of the water storage tank is fixedly connected with a circulation pump. The inner surface of the mounting housing is fixedly connected with a pipe sleeve. The top surface of the pipe sleeve is fixedly connected with a deformation sheet. The top surface of the pipe sleeve is fixedly connected with a connecting pipe. The inner surface of the connecting pipe is slidably connected with a lifting valve. The top surface of the lifting valve is fixedly connected with a counterweight.

[0007] Preferably, the input end of the circulation pump penetrates through the inner surface of the mounting housing, and the output end of the circulation pump penetrates through the inner surface of the water storage tank.

[0008] Preferably, the pipe sleeve is snap-fitted with the outer surface of the hydraulic oil pipe, and the deformation sheet is formed by welding an iron sheet and a copper sheet.

[0009] Preferably, the connecting pipe penetrates through the inner surface of the water storage tank, and the lifting valve is slidably connected with the top surface of the deformation sheet.

[0010] Preferably, the leakage adjustment mechanism includes a connecting valve, a viewing window plate, a floating piston, a manual control cover, and a limiting column. The outer surface of the hydraulic oil pipe is fixedly connected with a connecting valve. The outer surface of the connecting valve is fixedly connected with a viewing window plate. The inner surface of the connecting valve is slidably connected with a floating piston. The outer surface of the connecting valve is threadedly connected with a manual control cover. The bottom surface of the manual control cover is fixedly connected with a limiting column.

[0011] Preferably, the viewing window plate penetrates through the inner surface of the connecting valve, and the limiting column penetrates through the inner surface of the floating piston and is slidably connected with it.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows: For the oil delivery pipeline structure of this hydraulic press, through the setting of the cooling adjustment mechanism, during the use process, automatic cooling of the hydraulic oil pipe is achieved, avoiding system failures caused by excessive temperature. This structure utilizes the thermal expansion characteristics of the deformation sheet to automatically open the inflow of the cooling medium when the temperature rises, without manual intervention, realizing intelligent adjustment. The circulation between the water storage tank and the mounting housing pumps the cooled medium back into the water storage tank through the circulation pump to ensure the continuous use of the cooling medium and reduce resource waste. The overall structure is simple, with high reliability and low maintenance cost, significantly improving the working stability and safety of the hydraulic press and extending the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic side view of the overall structure of the present utility model;

[0014] Figure 2 This is a schematic side view of the internal structure of the installation housing of the present utility model;

[0015] Figure 3 This is a schematic diagram of the mutually cooperating structure of the pipe sleeve and the connecting pipe of the present utility model;

[0016] Figure 4 This is a schematic diagram of the mutually cooperating structure of the connecting valve and the manual control cover of the present utility model;

[0017] Figure 5 This is a schematic diagram of the mutually cooperating structure of the connecting valve and the floating piston of the present utility model;

[0018] Figure 6 This is a schematic diagram of the mutually cooperating structure of the manual control cover and the limit post of the present utility model.

[0019] In the figure: 1, pipe joint; 2, sealing joint; 3, pressure regulating valve; 4, hydraulic oil pipe; 5, cooling regulating mechanism; 501, installation housing; 502, water storage tank; 503, circulation pump; 504, pipe sleeve; 505, deformation sheet; 506, connecting pipe; 507, jacking valve; 508, counterweight; 6, leakage regulating mechanism; 601, connecting valve; 602, viewing window plate; 603, floating piston; 604, manual control cover; 605, limit post. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0021] Please refer to Figure 1-6 , the present utility model provides an oil delivery pipeline structure for a hydraulic press: including a pipe joint 1 and a cooling regulating mechanism 5. The outer surface of the pipe joint 1 is fixedly connected with a sealing joint 2. One end of the sealing joint 2 is fixedly connected with a pressure regulating valve 3. One end of the pressure regulating valve 3 is fixedly connected with a hydraulic oil pipe 4. The outer surface of the hydraulic oil pipe 4 is provided with a cooling regulating mechanism 5. The outer surface of the hydraulic oil pipe 4 is provided with a leakage regulating mechanism 6. The pipe joint 1 is used to connect with other pipe segments. The sealing joint 2 has good sealing performance and high-pressure resistance and is distributed throughout the connection. The pressure regulating valve 3 is used to manually readjust the oil pressure after the pipeline is closed to ensure the normal operation of the system. The hydraulic oil pipe 4 is used to transport hydraulic oil from the output end of the hydraulic pump to the input end of the hydraulic cylinder.

[0022] Furthermore, the cooling and regulating mechanism 5 includes a mounting shell 501, a water storage tank 502, a circulation pump 503, a pipe sleeve 504, a deformation sheet 505, a connecting pipe 506, a lifting valve 507 and a counterweight 508. The outer surface of the hydraulic oil pipe 4 is sleeved with a mounting shell 501, the top surface of the mounting shell 501 is fixedly connected to the water storage tank 502, one end of the water storage tank 502 is fixedly connected to the circulation pump 503, the inner surface of the mounting shell 501 is fixedly connected to the pipe sleeve 504, the top of the pipe sleeve 504 is fixedly connected to the inner surface of the mounting shell 501, and the top of the pipe sleeve 504 is fixedly connected to the inner surface of the mounting shell 501. The outer surface of the pipe sleeve 504 is fixedly connected with a deformation piece 505, the top surface of the pipe sleeve 504 is fixedly connected with a connecting pipe 506, the inner surface of the connecting pipe 506 is slidably connected with a lifting valve 507, and the top surface of the lifting valve 507 is fixedly connected with a counterweight 508. By installing the housing 501, the water storage tank 502, the circulating pump 503, the pipe sleeve 504, the deformation piece 505, the connecting pipe 506, the lifting valve 507 and the counterweight 508, during use, the hydraulic oil is subjected to the pressure during the working process. The temperature will rise due to the influence of pressure, and the temperature is transferred to the deformation sheet 505 by fitting the pipe sleeve 504 wrapped around the outside of the hydraulic oil pipe 4. The deformation sheet 505 is welded by an iron sheet and a copper sheet. Due to the different thermal collision coefficients of the two materials, the sheet will tilt toward the side with greater deformation after thermal expansion, and lift up the lifting valve 507 in the connecting pipe 506. At this time, the water tank 502 is connected with the installation shell 501, and the cooling medium in the water tank 502 flows into the installation shell 501 through the connecting pipe 506 and cools the internal pipe. The higher the temperature, the higher the lifting and the faster the inflow speed, until the deformation sheet 505 stops deforming and the cooling medium stops flowing in. The cooling medium in the installation shell 501 is pumped into the water tank 502 by the circulating pump 503 for natural cooling. The counterweight 508 presses the lifting valve 507 so that it will not float naturally when it is not affected by the deformation sheet 505. The simple mechanical structure allows the device to automatically monitor the temperature and cool it to prevent the hydraulic oil temperature from being too high under high pressure from affecting the system.

[0023] Furthermore, the input end of the circulation pump 503 penetrates the inner surface of the installation shell 501, and the output end of the circulation pump 503 penetrates the inner surface of the water tank 502. The cooling medium in the installation shell 501 is pumped into the water tank 502 by the circulation pump 503 to allow it to cool naturally.

[0024] Furthermore, the pipe sleeve 504 is snap-fitted to the outer surface of the hydraulic oil pipe 4, and the deformable sheet 505 is welded by an iron sheet and a copper sheet. The temperature is transferred to the deformable sheet 505 by the pipe sleeve 504 wrapped around the hydraulic oil pipe 4, and the operation of the control mechanism is controlled according to the changes caused by the different heating of the deformable sheet 505.

[0025] Further, the connecting pipe 506 penetrates through to the inner surface of the water storage tank 502. The jacking valve 507 is slidably connected to the top surface of the deformation sheet 505. After the deformation sheet 505 collides and warps, it jacks up the jacking valve 507 in the connecting pipe 506. At this time, the water storage tank 502 communicates with the installation housing 501, and the cooling medium inside the water storage tank 502 flows into the installation housing 501 through the connecting pipe 506 and cools the internal pipes.

[0026] Further, the leakage adjustment mechanism 6 includes a connecting valve 601, a viewing window plate 602, a floating piston 603, a manual control cover 604, and a limiting post 605. The outer surface of the hydraulic oil pipe 4 is fixedly connected with the connecting valve 601. The outer surface of the connecting valve 601 is fixedly connected with the viewing window plate 602. The inner surface of the connecting valve 601 is slidably connected with the floating piston 603. The outer surface of the connecting valve 601 is threadedly connected with the manual control cover 604. The bottom surface of the manual control cover 604 is fixedly connected with the limiting post 605. Through the settings of the connecting valve 601, the viewing window plate 602, the floating piston 603, the manual control cover 604, and the limiting post 605, during use, the connecting valve 601 is installed at the key node of the hydraulic oil pipe 4 and is used to automatically close the pipeline in case of leakage to prevent the leakage of hydraulic oil. The viewing window plate 602 is convenient for observing the internal working conditions. When the oil pressure in the pipeline is abnormal, the floating piston 603 will automatically move under the action of the oil pressure. When the internal hydraulic oil is full, the floating piston 603 will float and have no impact on the system at this time. When there is a leakage inside and the hydraulic oil decreases, the floating piston 603 will drop without the support of the hydraulic oil buoyancy and block the fluid passage in the connecting valve 601. The manual control cover 604 covers the surface of the connecting valve 601, moves up and down through threaded connection, and drives the limiting post 605 to move. The limiting post 605 penetrates through the inside of the floating piston 603 and is slidably connected with it. The floating piston 603 can slide up and down to a certain extent on the limiting post 605 to adapt to the change of the internal hydraulic oil. At the same time, the manual control cover 604 can be screwed off manually to force the limiting post 605 to press the floating piston 603 at the bottom to achieve active closing.

[0027] Further, the viewing window plate 602 penetrates through to the inner surface of the connecting valve 601. The limiting post 605 penetrates through to the inner surface of the floating piston 603 and is slidably connected with it. The viewing window plate 602 is convenient for observing the internal working conditions. The floating piston 603 can slide up and down to a certain extent on the limiting post 605 to adapt to the change of the internal hydraulic oil.

[0028] Working principle: A hydraulic oil delivery pipeline structure of a hydraulic press transfers temperature to the deformation piece 505 through the fitting of the pipeline sleeve 504 wrapped around the hydraulic oil pipe 4. After being heated and expanded, the deformation piece 505 will tilt towards the side with larger deformation and push up the lifting valve 507 in the connecting pipeline 506. At this time, the water storage tank 502 communicates with the installation housing 501, and the cooling medium inside the water storage tank 502 flows into the installation housing 501 through the connecting pipeline 506 to cool the internal pipeline until the deformation piece 505 stops deforming and the cooling medium stops flowing in. The cooling medium in the installation housing 501 is pumped into the water storage tank 502 by the circulation pump 503 for natural cooling. The connection valve 601 is installed at the key nodes of the hydraulic oil pipe 4 and is used to automatically close the pipeline in case of leakage to prevent hydraulic oil leakage. The viewing window plate 602 facilitates observing the internal working conditions. When the oil pressure in the pipeline is abnormal, the floating piston 603 will automatically move under the action of the oil pressure. When the internal hydraulic oil is full, the floating piston 603 will float and have no impact on the system at this time. When there is a leakage inside and the hydraulic oil decreases, the floating piston 603 will drop without the support of the hydraulic oil buoyancy and block the fluid passage in the connection valve 601. The manual control cover 604 covers the surface of the connection valve 601, moves up and down through threaded connection, and drives the limit post 605 to move. The limit post 605 penetrates into the inside of the floating piston 603 and is slidably connected to it. The floating piston 603 can slide up and down to a certain extent on the limit post 605 to adapt to the change of the internal hydraulic oil. At the same time, the floating piston 603 can be actively closed by screwing down the manual control cover 604 manually to force the limit post 605 to press the floating piston 603 at the bottom. In this way, a hydraulic oil delivery pipeline structure of a hydraulic press is completed.

[0029] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An oil delivery pipeline structure for a hydraulic press, comprising a pipeline joint (1) and a cooling adjustment mechanism (5), characterized in that: The outer surface of the pipe joint (1) is fixedly connected to a sealing joint (2), one end of the sealing joint (2) is fixedly connected to a pressure regulating valve (3), one end of the pressure regulating valve (3) is fixedly connected to a hydraulic oil pipe (4), the outer surface of the hydraulic oil pipe (4) is provided with a cooling regulating mechanism (5), and the outer surface of the hydraulic oil pipe (4) is provided with a leakage regulating mechanism (6); The cooling and regulating mechanism (5) comprises a mounting shell (501), a water storage tank (502), a circulating pump (503), a pipe sleeve (504), a deformable sheet (505), a connecting pipe (506), a lifting valve (507) and a counterweight (508); the outer surface of the hydraulic oil pipe (4) is sleeved with the mounting shell (501); the top surface of the mounting shell (501) is fixedly connected to the water storage tank (502); one end of the water storage tank (502) is fixedly connected to the outer surface of the hydraulic oil pipe (4); A circulation pump (503) is connected, the inner surface of the mounting shell (501) is fixedly connected to a pipe sleeve (504), the top surface of the pipe sleeve (504) is fixedly connected to a deformation sheet (505), the top surface of the pipe sleeve (504) is fixedly connected to a connecting pipe (506), the inner surface of the connecting pipe (506) is slidably connected to a lifting valve (507), and the top surface of the lifting valve (507) is fixedly connected to a counterweight (508).

2. The oil delivery pipeline structure of a hydraulic press according to claim 1, characterized in that: The input end of the circulation pump (503) penetrates the inner surface of the mounting housing (501), and the output end of the circulation pump (503) penetrates the inner surface of the water storage tank (502).

3. The oil delivery pipeline structure of a hydraulic press according to claim 1, characterized in that: The pipe sleeve (504) is snap-fitted and connected to the outer surface of the hydraulic oil pipe (4), and the deformation sheet (505) is formed by welding an iron sheet and a copper sheet.

4. The oil delivery pipeline structure of a hydraulic press according to claim 1, characterized in that: The connecting pipe (506) penetrates the inner surface of the water storage tank (502), and the lifting valve (507) is slidably connected to the top surface of the deformation sheet (505).

5. The oil delivery pipeline structure of a hydraulic press according to claim 1, characterized in that: The leakage adjustment mechanism (6) comprises a connecting valve (601), a window plate (602), a floating piston (603), a manual control cover (604) and a limit column (605); the outer surface of the hydraulic oil pipe (4) is fixedly connected to the connecting valve (601); the outer surface of the connecting valve (601) is fixedly connected to the window plate (602); the inner surface of the connecting valve (601) is slidably connected to the floating piston (603); the outer surface of the connecting valve (601) is threadedly connected to the manual control cover (604); and the bottom surface of the manual control cover (604) is fixedly connected to the limit column (605).

6. The oil delivery pipeline structure of a hydraulic press according to claim 5, characterized in that: The window plate (602) penetrates the inner surface of the connecting valve (601), and the limiting column (605) penetrates the inner surface of the floating piston (603) and is slidably connected thereto.

Images