Cooling device for oil press

Abstract

The utility model relates to the technical field of oil presses, and discloses a cooling device for an oil press, which comprises an oil press main seat, an oil hydraulic cylinder arranged at the top of the oil press main seat, a hydraulic oil circulating cooling mechanism arranged on the surface of the oil hydraulic cylinder and an oil hydraulic cylinder cooling mechanism arranged on the surface of the oil hydraulic cylinder. The two sets of mechanisms are linearly and evenly distributed on the surface of an oil hydraulic cylinder, all parts are detachable, the heat dissipation area is increased through heat dissipation fins, heat convection is strengthened through an air fan, heat dissipation is achieved, the hydraulic oil circulating cooling mechanism comprises a back frame, a plate heat exchanger, a circulating oil pipe and the like, hydraulic oil and cooling media exchange heat in the plate heat exchanger, and the cooling air fan strengthens the heat exchange effect. Through the design of the double cooling mechanisms, the problems that an existing device is low in cooling efficiency, inconvenient to maintain and the like are solved, it can be guaranteed that the oil hydraulic cylinder and hydraulic oil stably operate at the proper temperature, the service life of the oil press is prolonged, and the reliability of the oil press is improved.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic press technology, specifically a cooling device for hydraulic presses. Background Technology

[0002] During the operation of a hydraulic press, the hydraulic system generates a large amount of heat due to energy loss. If it is not cooled in time, it can easily lead to a decrease in oil viscosity, increased wear of components, and even system failure. Existing cooling devices often have problems such as low cooling efficiency, complex structure, and inconvenient maintenance, making it difficult to meet the heat dissipation requirements of hydraulic presses operating under high load for a long time. Therefore, there is an urgent need for a high-efficiency, reliable, and easy-to-maintain cooling device for hydraulic presses.

[0003] According to a patent application published on the internet (authorization announcement number: CN220808659U), a cooling device for a hydraulic press is described as follows: "This utility model discloses a cooling device for a hydraulic press, comprising: a hydraulic press body, a template on the hydraulic press body, a water pipe fixedly inserted into the template, a heat sink fixedly installed at one end of the water pipe, a fan fixedly installed on the heat sink, a water storage device fixedly connected at one end of the water pipe, a circulating water pump fixedly connected at the other end of the water pipe, and the other end of the water pipe fixedly connected to the water storage device. A water tank is placed inside the water tank, and an installation head is integrally formed on the water storage tank. An external threaded ring is integrally formed on the installation head, and an internal threaded ring is movably installed on the connecting head, with the internal threaded ring fixedly fitted onto the external threaded ring. This utility model, a cooling device for a hydraulic press, absorbs the heat generated by the template during the forming process through the water pipe, heat sink, fan, and water storage device. When the heat is high, the cooling water is replaced to enhance the cooling effect of the template."

[0004] Based on the above, the applicant believes the following deficiencies exist:

[0005] The cooling device for this hydraulic press includes the hydraulic press body, which is equipped with a mold plate. The heat generated by the mold plate during the forming process is absorbed by water pipes, heat sinks, fans, and water storage devices. When the heat is high, the cooling water is replaced to enhance the cooling effect of the mold plate. During the operation of the hydraulic press, the hydraulic cylinder itself also generates heat. Most existing devices do not have a separate cooling device to dissipate heat from the hydraulic cylinder. Over time, this will seriously affect the service life and service cycle of the device. Utility Model Content

[0006] The purpose of this invention is to provide a cooling device for a hydraulic press to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a cooling device for a hydraulic press, comprising a hydraulic press main seat, a hydraulic cylinder being provided on the top of the hydraulic press main seat, a hydraulic cylinder cooling mechanism being provided on the surface of the hydraulic cylinder, and a hydraulic oil circulation cooling mechanism being provided on the surface of the hydraulic press main seat;

[0008] The hydraulic cylinder cooling mechanism includes a mounting plate mounted on the surface of the hydraulic cylinder. Mounting blocks are fixedly connected to both ends of the hydraulic cylinder, and connecting bolts are installed inside the mounting blocks. Heat dissipation fins are installed on the inner end of the mounting plate, and mounting chambers are fixedly connected to the four corners of the top of the mounting plate. Fans are installed inside the mounting chambers, and dustproof nets are installed on the top of the mounting chambers. When the hydraulic cylinder is working, the cooling mechanism dissipates heat from the surface. The heat dissipation fins are annular and in contact with the surface of the hydraulic cylinder. The fins are designed with a serrated shape, which disrupts the boundary layer airflow, increases air turbulence, and enhances convective heat transfer. The fans continuously blow air vertically towards the fins, accelerating airflow and carrying away heat from the fin surface, forming vertical convection and effectively removing heat from the fins. This mechanism accelerates heat dissipation by increasing the heat dissipation area and enhancing thermal convection, ensuring the hydraulic cylinder operates stably at a suitable temperature.

[0009] Preferably, the hydraulic cylinder cooling mechanism is provided in two sets, which are evenly distributed in a straight line on the surface of the hydraulic cylinder.

[0010] Preferably, the mounting plate, heat sink fins, fan, and dust filter are all designed to be detachable.

[0011] Preferably, the hydraulic oil circulation cooling mechanism includes a back frame, which is fixedly connected to the back of the hydraulic press main seat. A plate heat exchanger is installed on the top of the back frame. An oil outlet pump is installed at the right end of the bottom back of the hydraulic cylinder, and an oil inlet pump is installed at the left end of the bottom back of the hydraulic cylinder. A circulation oil pipe is installed between the oil outlet pump and the oil inlet pump. A cooling medium tank is installed inside the back frame. An outlet pump is installed at the top right end of the cooling medium tank, and an inlet pump is installed at the top left end of the cooling medium tank. A circulation oil pipe is installed between the outlet pump and the inlet pump. The device has a cooling medium circulation pipe, and a mounting bracket is fixedly connected to the top front end of the back frame. A cooling fan is installed inside the mounting bracket. The hydraulic oil inside the hydraulic cylinder is discharged through the circulation pipe and enters the plate heat exchanger. At the same time, the cooling medium enters the plate heat exchanger through the cooling medium circulation pipe. The hydraulic oil and the cooling medium flow in a counter-current (more efficient) or co-current manner on both sides of the plate. Heat is transferred through the metal wall of the plate, and the cooling fan enhances the heat exchange effect, thereby reducing the temperature of the hydraulic oil and controlling the oil temperature.

[0012] Preferably, the mounting bracket and cooling fan correspond to the plate heat exchanger, circulating oil pipe and cooling medium circulation pipe.

[0013] Preferably, the main body of the hydraulic press is fixedly connected to four pillars at the top corners, a top frame is fixedly connected to the top of the pillars, a hydraulic cylinder is installed at the center of the top of the top frame, a hydraulic telescopic column is installed at the center of the bottom end of the hydraulic cylinder, a slide is installed at the bottom end of the hydraulic telescopic column, a pressure plate is installed at the center of the bottom end of the slide, and a work panel is installed at the center of the top of the main body of the hydraulic press.

[0014] Compared with the prior art, this utility model provides a cooling device for a hydraulic press, which has the following features:

[0015] Beneficial effects:

[0016] 1. The cooling device of this hydraulic press is equipped with a hydraulic cylinder cooling mechanism. When the hydraulic cylinder is working, the surface is cooled by the hydraulic cylinder cooling mechanism. The heat dissipation fins are in a ring shape and contact the surface of the hydraulic cylinder. The heat dissipation fins are designed with a serrated shape, which can disrupt the boundary layer airflow, increase the air turbulence, and enhance convective heat transfer. The fan will continuously blow air during operation, and the airflow will blow vertically towards the fins, accelerating the airflow and carrying away the heat on the fin surface, forming vertical convection, which effectively removes the heat from the fins. The setting of this mechanism accelerates heat dissipation by increasing the heat dissipation area and enhancing thermal convection, ensuring that the hydraulic cylinder operates stably at a suitable temperature.

[0017] 2. The cooling device of this hydraulic press is equipped with a hydraulic oil circulation cooling mechanism. The hydraulic oil inside the hydraulic cylinder is discharged through the circulation oil pipe and enters the plate heat exchanger. At the same time, the cooling medium enters the plate heat exchanger through the cooling medium circulation pipe. The hydraulic oil and the cooling medium flow in a counter-current (more efficient) or co-current manner on both sides of the plate. Heat is transferred through the metal wall of the plate, and the heat exchange effect is enhanced by the cooling fan, thereby reducing the temperature of the hydraulic oil and controlling the oil temperature. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the hydraulic cylinder structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the hydraulic cylinder cooling mechanism of this utility model;

[0022] Figure 4 This is a schematic diagram of the hydraulic oil circulation cooling mechanism of this utility model.

[0023] In the diagram: 1. Main seat of the hydraulic press; 11. Work panel; 2. Support column; 3. Top frame; 4. Hydraulic cylinder; 5. Hydraulic telescopic column; 6. Slide seat; 7. Pressure plate; 8. Hydraulic cylinder cooling mechanism; 81. Mounting plate; 82. Mounting block; 83. Connecting bolt; 84. Heat dissipation fins; 85. Mounting chamber; 86. Fan; 87. Dustproof net; 9. Hydraulic oil circulation cooling mechanism; 91. Back frame; 92. Plate heat exchanger; 93. Oil outlet pump; 94. Oil inlet pump; 95. Circulating oil pipe; 96. Cooling medium tank; 97. Liquid outlet pump; 98. Liquid inlet pump; 99. Cooling medium circulation pipe; 901. Mounting bracket; 902. Cooling fan. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] This utility model provides the following technical solution:

[0027] Example 1

[0028] Please see Figure 1-4 A cooling device for a hydraulic press includes a hydraulic press main seat 1, a hydraulic cylinder 4 is provided on the top of the hydraulic press main seat 1, a hydraulic cylinder cooling mechanism 8 is provided on the surface of the hydraulic cylinder 4, and a hydraulic oil circulation cooling mechanism 9 is provided on the surface of the hydraulic press main seat 1.

[0029] The hydraulic cylinder cooling mechanism 8 includes a mounting plate 81, which is mounted on the surface of the hydraulic cylinder 4. Mounting blocks 82 are fixedly connected to both ends of the hydraulic cylinder 4, and connecting bolts 83 are installed inside the mounting blocks 82. Heat dissipation fins 84 are installed inside the mounting plate 81, and mounting chambers 85 are fixedly connected to the four corners of the top of the mounting plate 81. Fans 86 are installed inside the mounting chambers 85, and a dustproof net 87 is installed on the top of the mounting chambers 85. When the hydraulic cylinder 4 is working, the surface is cooled by the hydraulic cylinder cooling mechanism 8. The heat dissipation fins 84 are in a ring shape and contact the surface of the hydraulic cylinder 4. The heat dissipation fins 84 are designed with a serrated shape, which can disrupt the boundary layer airflow, increase the air turbulence, and enhance convective heat transfer. The fan 86 will continuously blow air during operation, with the airflow blowing vertically towards the fins, accelerating the airflow, carrying away the heat on the fin surface, forming vertical convection, and effectively carrying away the heat from the fins. The setting of this mechanism accelerates heat dissipation by increasing the heat dissipation area and enhancing thermal convection, ensuring that the hydraulic cylinder 4 operates stably at a suitable temperature.

[0030] Two sets of hydraulic cylinder cooling mechanisms 8 are provided, which are evenly distributed in a straight line on the surface of hydraulic cylinder 4.

[0031] The mounting plate 81, heat dissipation fins 84, fan 86, and dust filter 87 are all designed to be detachable.

[0032] Example 2

[0033] Please see Figure 1-4 Based on Embodiment 1, the hydraulic oil circulation cooling mechanism 9 further includes a back frame 91, which is fixedly connected to the back of the hydraulic press main seat 1. A plate heat exchanger 92 is installed on the top of the back frame 91. An oil outlet pump 93 is installed at the right end of the bottom back of the hydraulic cylinder 4, and an oil inlet pump 94 is installed at the left end of the bottom back of the hydraulic cylinder 4. A circulation oil pipe 95 is installed between the oil outlet pump 93 and the oil inlet pump 94. A cooling medium tank 96 is installed inside the back frame 91. An outlet pump 97 is installed at the right end of the top of the cooling medium tank 96, and an inlet pump 98 is installed at the left end of the top of the cooling medium tank 96. The outlet pump 97 and the inlet pump 98 are connected together. A cooling medium circulation pipe 99 is installed between 8. A mounting bracket 901 is fixedly connected to the top front end of the back frame 91. A cooling fan 902 is installed inside the mounting bracket 901. The hydraulic oil inside the hydraulic cylinder 4 will be discharged through the circulation oil pipe 95 and enter the plate heat exchanger 92. At the same time, the cooling medium will enter the plate heat exchanger 92 through the cooling medium circulation pipe 99. The hydraulic oil and the cooling medium flow in a counter-current (more efficient) or co-current manner on both sides of the plate. Heat is transferred through the metal wall of the plate. The cooling fan 902 enhances the heat exchange effect, thereby reducing the temperature of the hydraulic oil and controlling the oil temperature.

[0034] Mounting bracket 901 and cooling fan 902 correspond to plate heat exchanger 92, circulating oil pipe 95 and cooling medium circulating pipe 99;

[0035] The main base 1 of the hydraulic press is fixedly connected to four corners of the top with support columns 2. The top of the support columns 2 is fixedly connected to the top frame 3. The top center of the top frame 3 is equipped with a hydraulic cylinder 4. The bottom center of the hydraulic cylinder 4 is equipped with a hydraulic telescopic column 5. The bottom of the hydraulic telescopic column 5 is equipped with a slide 6. The bottom center of the slide 6 is equipped with a pressure plate 7. The top center of the main base 1 of the hydraulic press is equipped with a work panel 11.

[0036] In actual operation, when the hydraulic cylinder 4 is working, the surface is cooled by the hydraulic cylinder cooling mechanism 8. The heat dissipation fins 84 are in a ring shape and contact the surface of the hydraulic cylinder 4. The heat dissipation fins 84 are designed with a serrated shape, which can disrupt the boundary layer airflow, increase the air turbulence, and enhance convective heat transfer. The fan 86 will continuously blow air during operation, with the airflow blowing vertically towards the fins, accelerating the airflow, carrying away the heat on the fin surface, forming vertical convection, and effectively carrying away the heat from the fins. The setting of this mechanism accelerates heat dissipation by increasing the heat dissipation area and enhancing thermal convection, ensuring that the hydraulic cylinder 4 operates stably at a suitable temperature.

[0037] The hydraulic oil inside the hydraulic cylinder 4 is discharged through the circulating oil pipe 95 and enters the plate heat exchanger 92. At the same time, the cooling medium enters the plate heat exchanger 92 through the cooling medium circulation pipe 99. The hydraulic oil and the cooling medium flow in a counter-current (more efficient) or co-current manner on both sides of the plate, and heat is transferred through the metal wall of the plate. The cooling fan 902 enhances the heat exchange effect, thereby reducing the temperature of the hydraulic oil and controlling the oil temperature.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A cooling device for a hydraulic press, comprising a hydraulic press main seat (1), characterized in that: The top of the main seat (1) of the hydraulic press is provided with a hydraulic cylinder (4), the surface of the hydraulic cylinder (4) is provided with a hydraulic cylinder cooling mechanism (8), and the surface of the main seat (1) of the hydraulic press is provided with a hydraulic oil circulation cooling mechanism (9). The hydraulic cylinder cooling mechanism (8) includes a mounting plate (81), which is mounted on the surface of the hydraulic cylinder (4). Mounting blocks (82) are fixedly connected to the left and right ends of the hydraulic cylinder (4). A connecting bolt (83) is installed inside the mounting block (82). A heat dissipation fin (84) is installed inside the mounting plate (81). A mounting chamber (85) is fixedly connected to the four corners of the top of the mounting plate (81). A fan (86) is installed inside the mounting chamber (85). A dustproof net (87) is installed on the top of the mounting chamber (85).

2. The cooling device for a hydraulic press according to claim 1, characterized in that: The hydraulic cylinder cooling mechanism (8) is provided in two sets, which are evenly distributed in a straight line on the surface of the hydraulic cylinder (4).

3. The cooling device for a hydraulic press according to claim 1, characterized in that: The mounting plate (81), heat dissipation fins (84), fan (86), and dust filter (87) are all designed to be detachable.

4. A cooling device for a hydraulic press according to claim 1, characterized in that: The hydraulic oil circulation cooling mechanism (9) includes a back frame (91), which is fixedly connected to the back of the hydraulic press main seat (1). A plate heat exchanger (92) is installed on the top of the back frame (91). An oil outlet pump (93) is installed at the right end of the bottom back of the hydraulic cylinder (4), and an oil inlet pump (94) is installed at the left end of the bottom back of the hydraulic cylinder (4). A circulating oil pipe (95) is installed between the oil outlet pump (93) and the oil inlet pump (94). (91) A cooling medium tank (96) is installed at the inner end. A liquid outlet pump (97) is installed at the top right end of the cooling medium tank (96). A liquid inlet pump (98) is installed at the top left end of the cooling medium tank (96). A cooling medium circulation pipe (99) is installed between the liquid outlet pump (97) and the liquid inlet pump (98). A mounting bracket (901) is fixedly connected to the top front end of the back frame (91). A cooling fan (902) is installed inside the mounting bracket (901).

5. A cooling device for a hydraulic press according to claim 4, characterized in that: The mounting bracket (901) and cooling fan (902) correspond to the plate heat exchanger (92), circulating oil pipe (95) and cooling medium circulating pipe (99).

6. A cooling device for a hydraulic press according to claim 1, characterized in that: The main seat (1) of the hydraulic press is fixedly connected to four corners of the top with support columns (2), and the top of the support columns (2) is fixedly connected to a top frame (3). The top of the top frame (3) is equipped with a hydraulic cylinder (4), the bottom of the hydraulic cylinder (4) is equipped with a hydraulic telescopic column (5), the bottom of the hydraulic telescopic column (5) is equipped with a slide (6), the bottom of the slide (6) is equipped with a pressure plate (7), and the top of the main seat (1) of the hydraulic press is equipped with a work panel (11).

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