Hydraulic oil cylinder for oil press

Abstract

The utility model discloses a hydraulic oil cylinder for an oil press, and relates to the technical field of hydraulic oil cylinders, the hydraulic oil cylinder for the oil press is in threaded connection with an operation structural member of the oil press through a threaded connection port and is matched with a protective pad to protect mechanical equipment, abrasion of the connection position is avoided, friction force of the connection position is increased at the same time, and the service life of the hydraulic oil cylinder is prolonged. Then a bolt penetrates through a locking hole to lock the piston rod and the operation structural part, the stability and firmness of connection of the output end of the hydraulic oil cylinder are improved, when a temperature sensor detects that the temperature of a cylinder barrel is high, the temperature sensor is electrically connected with a fan, the fan is conveniently controlled in time to drive air in a mounting shell to flow, and the working efficiency is improved. And the heat exchange efficiency of the cylinder barrel and air is improved in cooperation with the cooling fins, so that the air rapidly takes away heat on the surface of the cylinder barrel, the cooling function of the hydraulic oil cylinder is achieved, the hydraulic oil cylinder is prevented from working in a high-temperature state, abrasion to a mechanical structure of the hydraulic oil cylinder is avoided, and the service life of the hydraulic oil cylinder is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic cylinders, in particular to a hydraulic cylinder for an oil press. Background Art

[0002] The hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy and performs linear reciprocating motion (or swinging motion). It has a simple structure and reliable operation. When using it to achieve reciprocating motion, the deceleration device can be eliminated, and there is no transmission gap and the movement is smooth. Therefore, it is widely used in the hydraulic systems of various machines. The output force of the hydraulic cylinder is proportional to the effective area of ​​the piston and the pressure difference on both sides. The hydraulic cylinder is basically composed of a cylinder barrel and a cylinder head, a piston and a piston rod, a sealing device, a buffer device and an exhaust device.

[0003] For example, publication number CN218177602U, the utility model discloses a hydraulic cylinder for oil hydraulic press, including a hydraulic cylinder, a first flange and a second flange, and also including a threaded joint, an annular pressure plate and a spring. The output end of the hydraulic cylinder is welded with a first flange, the center of the bottom of the first flange is welded with a threaded joint, the outer sleeve of the threaded joint is provided with a second flange, the bottom of the second flange is provided with an annular pressure plate, the bottom of the second flange is welded with an inner sleeve, and the top of the annular pressure plate is welded with an outer sleeve. The overall hydraulic cylinder for oil hydraulic press has good stability in use, can provide an auxiliary pre-pressing mechanism for the cylinder, avoid the phenomenon of sliding and displacement of the pressed object when it is pressed, and has high practicality.

[0004] After working for a long time, the temperature of the hydraulic cylinder and the hydraulic oil inside the hydraulic cylinder will rise rapidly. The high temperature will affect the working performance of the hydraulic oil and cause wear to the mechanical structure of the hydraulic cylinder, thereby reducing the service life of the hydraulic cylinder. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a hydraulic cylinder for an oil hydraulic press to solve the problem in the above background technology that after working for a long time, the temperature of the cylinder itself and the hydraulic oil inside the hydraulic cylinder rises rapidly, and the high temperature state affects the working performance of the hydraulic oil and causes wear to the mechanical structure of the hydraulic cylinder for the oil hydraulic press, thereby reducing the service life of the hydraulic cylinder for the oil hydraulic press.

[0006] To achieve the above objectives, the utility model is implemented through the following technical solutions: a hydraulic cylinder for an oil hydraulic press, comprising a cylinder barrel, a cylinder head is provided at the lower end of the cylinder barrel, a piston rod is provided at the lower end of the cylinder head, a threaded connection port is provided on the lower side of the surface of the piston rod, a locking hole is provided on the surface of the piston rod located at the side of the threaded connection port, a mounting plate is fixedly installed on the surface of the cylinder head, a mounting shell is provided at the upper end of the mounting plate located at the side of the cylinder head, a protective net is provided at the upper end of the mounting shell, a through groove is provided at the upper end of the mounting shell located on the inner side of the protective net, a connecting gasket is fixedly installed on the upper end of the mounting shell located at the side of the through groove, a fan is fixedly installed on the upper end of the connecting gasket, and a temperature sensor is fixedly installed on the upper side of the right end of the mounting shell.

[0007] Preferably, a mounting protection pad is fixedly mounted on the lower end of the piston rod, and the mounting protection pad is made of nitrile rubber.

[0008] Preferably, the mounting plate is provided with mounting holes, and the mounting holes are evenly distributed.

[0009] Preferably, heat dissipation fins are fixedly mounted on the surface of the cylinder, and the heat dissipation fins are evenly distributed.

[0010] Preferably, through holes are provided on both upper and lower sides of the front end of the installation shell, and heat dissipation grooves are provided on both left and right ends of the installation shell.

[0011] Preferably, the mounting shell is detachably connected to the mounting plate, and the mounting shell is detachably connected to the protective net.

[0012] Preferably, the connecting gasket is made of nitrile rubber, and the temperature sensor is electrically connected to the fan. Beneficial Effects

[0013] The utility model provides a hydraulic cylinder for an oil press. Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. The hydraulic cylinder for the oil press is firstly fixed with bolts to the mounting plate on the oil press equipment, and then threadedly connected with the operating structure of the oil press through the threaded connection port, and the mechanical equipment is protected with a protective pad to avoid wear at the connection and increase the friction at the connection. Then, the bolt is passed through the locking hole to lock the piston rod and the operating structure, which is beneficial to improve the stability and firmness of the connection at the output end of the hydraulic cylinder for the oil press.

[0015] 2. When the temperature sensor detects that the cylinder temperature is high, the hydraulic cylinder for the oil press is electrically connected to the fan to timely control the fan to drive the air flow inside the installation shell, and cooperates with the heat dissipation fins to improve the heat exchange efficiency between the cylinder and the air, so that the air quickly takes away the heat on the surface of the cylinder, thereby realizing the heat dissipation function of the hydraulic cylinder, preventing the hydraulic cylinder from working in a high temperature state, avoiding wear on the mechanical structure of the hydraulic cylinder, and helping to extend the service life of the hydraulic cylinder for the oil press. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The three-dimensional structure of the utility model is shown in FIG. Figure 1 .

[0017] Figure 2 The three-dimensional structure of the utility model is shown in FIG. Figure 2 .

[0018] Figure 3 It is a schematic diagram of the cylinder structure of the utility model.

[0019] Figure 4 This is a schematic diagram of the installation shell structure of the utility model.

[0020] In the figure: 1. Cylinder barrel; 2. Cylinder head; 3. Piston rod; 4. Threaded connection port; 5. Locking hole; 6. Mounting plate; 7. Mounting shell; 8. Protective net; 9. Through slot; 10. Connecting gasket; 11. Fan; 12. Temperature sensor; 13. Protective pad; 14. Mounting hole; 15. Heat sink fin; 16. Through hole; 17. Heat sink. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-4The utility model provides a technical solution: a hydraulic cylinder for a hydraulic press, comprising a cylinder barrel 1, a cylinder cover 2 is arranged at the lower end of the cylinder barrel 1, a piston rod 3 is arranged at the lower end of the cylinder cover 2, a threaded connection port 4 is provided on the lower side of the surface of the piston rod 3, a locking hole 5 is provided on the surface of the piston rod 3 located on the side of the threaded connection port 4, a mounting plate 6 is fixedly installed on the surface of the cylinder cover 2, a mounting protective pad 13 is fixedly installed on the lower end of the piston rod 3, the mounting protective pad 13 is made of nitrile rubber, mounting holes 14 are provided on the mounting plate 6, and the mounting holes 14 are evenly distributed. First, the mounting plate 6 is fixed to the hydraulic press equipment with bolts, and is threadedly connected to the operating structural member of the hydraulic press through the threaded connection port 4, and the protective pad 13 is used to protect the mechanical equipment at the same time to avoid wear at the connection and increase the friction at the connection, and then the bolt is passed through the locking hole 5 to lock the piston rod 3 and the operating structural member, which is beneficial to improve the stability and firmness of the connection of the output end of the hydraulic cylinder for the hydraulic press;

[0023] The upper end of the mounting plate 6 is located at the side of the cylinder head 2 and is provided with a mounting shell 7. The upper end of the mounting shell 7 is provided with a protective net 8. The mounting shell 7 is detachably connected to the mounting plate 6, and the mounting shell 7 is detachably connected to the protective net 8. The mounting plate 6 and the protective net 8 are both detachably connected to the mounting shell 7, which facilitates the disassembly and maintenance of the income structure, and is conducive to improving the convenience of the maintenance work of the heat dissipation structure of the hydraulic cylinder;

[0024] The upper end of the mounting shell 7 is located on the inner side of the protective net 8 and is provided with a through slot 9. The upper end of the mounting shell 7 is located on the side of the through slot 9 and is fixedly provided with a connecting gasket 10. A fan 11 is fixedly provided on the upper end of the connecting gasket 10. A temperature sensor 12 is fixedly provided on the upper side of the right end of the mounting shell 7. Heat dissipation fins 15 are fixedly provided on the surface of the cylinder 1. The heat dissipation fins 15 are evenly distributed. Through holes 16 are provided on the upper and lower sides of the front end of the mounting shell 7. Heat dissipation grooves 17 are provided on the left and right ends of the mounting shell 7. The connecting gasket 10 is made of nitrile rubber. The temperature sensor 12 It is electrically connected to the fan 11. After the assembly is completed, the hydraulic cylinder is controlled to work. When the temperature sensor 12 detects that the temperature of the cylinder 1 is high, it is electrically connected to the fan 11 to facilitate timely control of the fan 11 to drive the air flow inside the installation housing 7, and cooperates with the heat dissipation fins 15 to improve the heat exchange efficiency between the cylinder 1 and the air, so that the air quickly takes away the heat on the surface of the cylinder 1, thereby realizing the heat dissipation function of the hydraulic cylinder, preventing the hydraulic cylinder from working in a high temperature state, avoiding wear on the mechanical structure of the hydraulic cylinder, and helping to extend the service life of the hydraulic cylinder for the oil press;

[0025] During operation, firstly, the mounting plate 6 is fixed to the hydraulic press equipment with bolts, and then threadedly connected to the operating structure of the hydraulic press through the threaded connection port 4. At the same time, the protective pad 13 is used to protect the mechanical equipment to avoid wear at the connection and increase the friction at the connection. Then, the bolt is passed through the locking hole 5 to lock the piston rod 3 and the operating structure. After assembly, the hydraulic cylinder is controlled to work. When the temperature sensor 12 detects that the temperature of the cylinder 1 is high, it is electrically connected to the fan 11 to facilitate timely control of the fan 11 to drive the air flow inside the mounting shell 7, and cooperates with the heat dissipation fins 15 to improve the heat exchange efficiency between the cylinder 1 and the air, so that the air can quickly take away the heat on the surface of the cylinder 1, thereby realizing the heat dissipation function of the hydraulic cylinder.

[0026] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

Claims

1. A hydraulic cylinder for a hydraulic press, comprising a cylinder barrel (1), characterized in that: A cylinder head (2) is provided at the lower end of the cylinder barrel (1), a piston rod (3) is provided at the lower end of the cylinder head (2), a threaded connection port (4) is provided on the lower side of the surface of the piston rod (3), a locking hole (5) is provided on the surface of the piston rod (3) at the side of the threaded connection port (4), a mounting plate (6) is fixedly mounted on the surface of the cylinder head (2), a mounting housing (7) is provided at the upper end of the mounting plate (6) at the side of the cylinder head (2), a protective net (8) is provided at the upper end of the mounting housing (7), a through slot (9) is provided at the upper end of the mounting housing (7) at the inner side of the protective net (8), a connecting washer (10) is fixedly mounted on the upper end of the mounting housing (7) at the side of the through slot (9), a fan (11) is fixedly mounted on the upper end of the connecting washer (10), and a temperature sensor (12) is fixedly mounted on the upper side of the right end of the mounting housing (7).

2. The hydraulic cylinder for a hydraulic press according to claim 1, characterized in that: A mounting protection pad (13) is fixedly mounted on the lower end of the piston rod (3), and the mounting protection pad (13) is made of nitrile rubber.

3. The hydraulic cylinder for a hydraulic press according to claim 1, characterized in that: The mounting plate (6) is provided with mounting holes (14), and the mounting holes (14) are evenly distributed.

4. The hydraulic cylinder for a hydraulic press according to claim 1, characterized in that: Heat dissipation fins (15) are fixedly mounted on the surface of the cylinder barrel (1), and the heat dissipation fins (15) are evenly distributed.

5. The hydraulic cylinder for a hydraulic press according to claim 1, characterized in that: Through holes (16) are provided on both upper and lower sides of the front end of the installation shell (7), and heat dissipation grooves (17) are provided on both left and right ends of the installation shell (7).

6. The hydraulic cylinder for a hydraulic press according to claim 5, characterized in that: The mounting shell (7) is detachably connected to the mounting plate (6), and the mounting shell (7) is detachably connected to the protective net (8).

7. The hydraulic cylinder for a hydraulic press according to claim 1, characterized in that: The connection gasket (10) is made of nitrile rubber, and the temperature sensor (12) is electrically connected to the fan (11).

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