Cooling structure for piston cylinder device

Abstract

The utility model discloses a cooling structure for a piston cylinder device, which comprises a tool steel inner ring provided with a cooling hole; a first annular containing cavity is formed in the annular water feeding disc, and the first annular containing cavity is communicated with the cooling holes; a second annular containing cavity is formed in the annular water discharging disc, the second annular containing cavity is communicated with the cooling holes, and a water inlet and a first water discharging opening are formed in the bottom of the second annular containing cavity; the drainage mechanism comprises a drainage cylinder, the drainage cylinder communicates with the first annular containing cavity, a sliding ring is slidably connected into the drainage cylinder, an air bag is fixed to the top face of the sliding ring in a sealed mode, the air bag communicates with the first annular containing cavity, a balance weight part is arranged at the top of the air bag, and a second drainage opening is formed in the side wall of the lower portion of the drainage cylinder; according to the utility model, the drainage of cooling water in the annular water feeding disc and the cooling holes can be accelerated through the arranged drainage mechanism.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of press, specifically is a cooling structure for piston cylinder device. BACKGROUND

[0002] In the fields of physics, chemistry, material science and earth science, extreme experimental conditions of ultrahigh temperature and high pressure are usually needed for experimental research, such as simulating the reaction conversion of crustal rocks, synthesizing superhard materials and new materials, or testing the pressure resistance of materials under ultrahigh temperature and high pressure conditions.

[0003] The piston cylinder type ultrahigh temperature and high pressure device can provide ultrahigh temperature and high pressure conditions for testing the pressure resistance of superhard materials under ultrahigh temperature conditions; the piston cylinder type ultrahigh temperature and high pressure device usually uses a tungsten carbide ring to form a pressure cavity for holding samples; under ultrahigh temperature conditions, the tungsten carbide ring inside needs to withstand temperatures exceeding 1000℃, the tungsten carbide has high compressive strength but low tensile strength, so external radial constraints need to be applied during the pressurization process to fully utilize its compressive properties and avoid deformation and damage caused by tensile stress; therefore, when pressurizing, external constraints need to be applied to the tungsten carbide, if the external temperature of the tungsten carbide is too high, the components that constrain the tungsten carbide are prone to deformation, which makes it impossible to constrain the tungsten carbide, causing the tungsten carbide to also deform, and the high temperature also affects the external equipment, so the external part of the tungsten carbide needs to be cooled down, the external part of the tungsten carbide is usually sleeved with a reinforcing layer to constrain the tungsten carbide, for example, a layer of tool steel layer or a layer of tool steel inner layer plus a layer of tool steel outer layer to prevent the tungsten carbide from deforming, and the reinforcing layer also needs to be cooled down to reduce the temperature of the external part of the tungsten carbide.

[0004] A bidirectional piston cylinder type ultrahigh temperature and high pressure device and its use method are disclosed in related documents, which include an upper base plate, a lower base plate, an upper oil cylinder, a lower oil cylinder, an upper piston, a lower piston, a transformer, a pressure sensor, a heating component, an upper piston seat and a pressure cavity for holding samples, etc. arranged between the upper base plate and the lower base plate; the upper base plate and the lower base plate are both horizontally arranged and connected by multiple tie rods.

[0005] This piston cylinder type ultrahigh temperature and high pressure device connects the upper water pan and the lower water pan through two small holes in the tool steel inner layer, uses the cooling water flowing through the small holes in the tool steel inner layer to cool down the tool steel inner layer, after cooling down, uses the gravity of the cooling water to flow out from the upper water pan and the small holes, the speed of the cooling water flowing out from the upper water pan and the small holes is slow, and if the cooling water is not drained from the upper water pan and the small holes, it will flow out from the space between the upper water pan and the tool steel inner layer after the device is depressurized. SUMMARY

[0006] The utility model discloses a cooling structure for piston cylinder device, to solve the problem of slow speed of cooling water flowing out from the upper water tray and the small hole after cooling.

[0007] To achieve the above object, the utility model adopts the technical scheme of:

[0008] A cooling structure for piston cylinder device, comprising:

[0009] Tool steel inner ring, the top surface of tool steel inner ring is provided with a plurality of cooling holes along the vertical direction;

[0010] Annular upper water tray is arranged on the top surface of tool steel inner ring, and the annular upper water tray is formed with a first annular accommodating cavity, and the first annular accommodating cavity is communicated with the cooling hole;

[0011] Annular lower water tray is arranged on the bottom surface of tool steel inner ring, and the annular lower water tray is formed with a second annular accommodating cavity, and the second annular accommodating cavity is communicated with the cooling hole, and the bottom of the second annular accommodating cavity is provided with a water inlet and a first water outlet;

[0012] Drainage mechanism, it includes a drainage cylinder arranged on the top of annular upper water tray, and the top end and the bottom end of the drainage cylinder are both provided with openings, and the drainage cylinder is communicated with the first annular accommodating cavity, and the sliding ring is sealingly and slidably connected in the drainage cylinder, and the air bag is sealingly fixed on the top surface of the sliding ring, and the air bag is communicated with the first annular accommodating cavity, and the counterweight is arranged on the top of the air bag, and the second water outlet is formed in the lower part of the side wall of the drainage cylinder.

[0013] The utility model discloses cooling hole is set up on tool steel inner ring, utilizes cooling water to flow through cooling hole and realizes the cooling, and the second annular accommodating cavity arranged in annular lower water tray is used for being communicated with a plurality of cooling holes, and the cooling water is introduced into a plurality of cooling holes, and the first annular accommodating cavity arranged in annular upper water tray is used for being communicated with a plurality of cooling holes, and the cooling water in a plurality of cooling holes is concentrated and removed, and the water inlet is used for the cooling water to enter the second accommodating cavity, and the first water outlet is used for the cooling water in the first annular accommodating cavity, cooling hole and the second annular accommodating cavity to be removed when cooling ends, and the drainage mechanism is used for accelerating the discharge of cooling water in annular upper water tray and cooling hole after cooling and cooling.

[0014] When cooling is needed, the first drain is closed, the sliding ring is below the second drain, blocking the second drain, cooling water enters the second annular cavity from the water inlet, and slowly flows upwards to the cooling hole and the first annular cavity. In this process, because there is air in the cooling hole and the first annular cavity, and the second drain is blocked by the sliding ring, under the pressure of the cooling water, the air in the cooling hole and the first annular cavity moves upwards and fills the air bag, lifting the counterweight, and the cooling water continues to flow upwards, lifting the counterweight, air bag and sliding ring, until the sliding ring moves above the second drain, allowing the first annular cavity to communicate with the outside through the second drain. When the first annular cavity is connected to the outside, the air in the first annular cavity can be discharged to the outside through the second drain, and the sliding ring and the counterweight can also slide down due to the connection with the outside. When the sliding ring is lowered to isolate the outside from the first annular cavity, the sliding ring and the counterweight will be lifted again due to the pressure of the cooling water, and this process will continue until the cooling water fills the cooling hole and the first annular cavity, and is discharged from the second drain. At this time, the air bag is isolated from the outside by the cooling water.

[0015] When the cooling is finished, the water inlet is closed and the first drain is opened. Under the action of gravity, the sliding ring and the counterweight fall. Because the sliding ring is lifted by the cooling water just above the second drain, the sliding ring can quickly close the second drain after falling. The counterweight continues to fall under the action of gravity, pressing the air in the air bag and the cooling water in the first annular cavity and the cooling hole. Under the pressure of the counterweight, the cooling water in the first annular cavity and the cooling hole can be discharged faster.

[0016] Further, the counterweight includes a pressure rod arranged in a vertical direction, with its bottom end fixed to the top end of the air bag. By setting the pressure rod, manual pressure can be applied to accelerate the discharge of cooling water after cooling.

[0017] Further, the top end of the air bag is fixed with a first pressing plate, which is connected to the drain cylinder in an up-down sliding manner. The pressure rod is fixedly connected to the top surface of the first pressing plate. The first pressing plate facilitates the pressing of the air bag by the pressure rod, allowing more air to be pressed downward.

[0018] Further, the top end of the pressure rod is provided with a second pressing plate, which facilitates the downward pressing of the pressure rod.

[0019] Further, a compression spring is arranged in the air bag, with its top end fixed to the top end of the air bag and its bottom end fixed to the bottom end of the air bag. The compression spring can lift the air bag, allowing more air in the air bag to be discharged from the second drain, facilitating subsequent discharge of the cooling water.

[0020] Further, the gas bag bottom end opening is arranged in sealing connection with the sliding ring at the bottom end opening, so that the gas bag is in communication with the first annular accommodating cavity.

[0021] Further, the gas bag top end opening is arranged in sealing connection with the first pressing plate at the top end opening, and the first one-way valve is arranged on the first pressing plate, so that the first pressing plate can move upward under the action of the compression spring after the first pressing plate is released after one-time pressing, and at the same time, external gas enters the gas bag through the first one-way valve, so that the pressure rod can be pressed multiple times, and the cooling water can be discharged more cleanly from the first annular accommodating cavity and the cooling hole.

[0022] Further, the first drainage port is provided with the second one-way valve, so that the cooling water can be discharged from the first drainage port while preventing external air from entering the second annular accommodating cavity through the first drainage port, and the cooling water in the second annular accommodating cavity can be prevented from being pushed into the cooling hole when the first pressing plate moves upward.

[0023] Further, the first limiting ring is arranged below the sliding ring to limit the sliding range of the sliding ring and prevent the sliding ring from falling into the first annular accommodating cavity.

[0024] Further, the second limiting ring is arranged above the first pressing plate to limit the sliding range of the first pressing plate and prevent the first pressing plate from sliding out of the drainage cylinder.

[0025] Compared with the prior art, the beneficial effects of the utility model are:

[0026] The drainage mechanism arranged in the utility model is used for accelerating the discharge of cooling water in the annular water tray and the cooling hole, the water inlet is closed and the first drainage port is opened after cooling and temperature reduction are completed, the sliding ring and the counterweight fall under the action of gravity, the sliding ring just exposes the second drainage port due to being pushed by the cooling water, therefore, the second drainage port can be quickly closed after the sliding ring falls, the counterweight continues to fall under the action of gravity, and the air in the gas bag and the cooling water in the first annular accommodating cavity and the cooling hole are extruded downward, so that the discharge of the cooling water in the first annular accommodating cavity and the cooling hole can be accelerated under the extrusion of the counterweight. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is a structure diagram of the cooling structure installed on the piston cylinder device in the embodiment;

[0028] Figure 2A structural schematic view of a cooling structure for a piston cylinder device in the embodiment;

[0029] Figure 3 A structural schematic view of a cooling structure for a piston cylinder device in the embodiment; Figure 2 A local enlarged view at A in the embodiment;

[0030] In the figure: 1, tool steel inner ring; 101, cooling hole; 2, annular upper water tray; 3, first annular accommodating cavity; 4, annular lower water tray; 5, second annular accommodating cavity; 6, water inlet; 7, first water outlet; 8, water drainage mechanism; 801, water drainage cylinder; 802, sliding ring; 803, air bag; 804, second water outlet; 805, pressing rod; 9, first pressing plate; 10, second pressing plate; 11, compression spring; 12, first one-way valve; 13, second one-way valve; 14, first limiting ring; 15, second limiting ring. DETAILED DESCRIPTION

[0031] The technical scheme of the utility model will be described clearly and completely in combination with the drawings in the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0032] As Figures 1-3 shown, the embodiment provides a cooling structure for a piston cylinder device, which comprises a tool steel inner ring 1, an annular upper water tray 2, an annular lower water tray 4 and a water drainage mechanism 8.

[0033] In Figure 1 the figure, the piston cylinder device is also drawn. Since the piston cylinder device is prior art, it is not explained specifically in the embodiment, Figures 1-3 In the figure, the cooling water is not drawn.

[0034] The tool steel inner ring 1 is provided with a plurality of penetrating cooling holes 101 in the vertical direction on the top surface.

[0035] The annular upper water tray 2 is arranged on the top surface of the tool steel inner ring 1, and the annular upper water tray 2 is formed with a first annular accommodating cavity 3, which is in communication with the cooling holes 101. In the embodiment, a circle of openings can be formed on the bottom surface of the first annular accommodating cavity 3 to make the first annular accommodating cavity 3 in communication with the top ends of all the cooling holes 101.

[0036] A second annular accommodating cavity 5 is formed in the annular lower water pan 4, the second annular accommodating cavity 5 is communicated with the cooling hole 101, the second annular accommodating cavity 5 is provided with a water inlet 6 and a first water outlet 7 at the bottom, and valves are arranged at the water inlet 6 and the first water outlet 7 to control the opening and closing thereof.

[0037] In the embodiment, the annular upper water pan 2 and the annular lower water pan 4 can be pressed against the tool steel inner ring 1 by the pressure of the piston cylinder device, so as to be arranged at the top end and the bottom end of the tool steel inner ring 1 respectively, or the annular upper water pan 2 and the annular lower water pan 4 can be arranged at the top end and the bottom end of the tool steel inner ring 1 respectively by welding.

[0038] The drainage mechanism 8 comprises a drainage cylinder 801 arranged at the top of the annular upper water pan 2, the drainage cylinder 801 is fixedly sealed with the top surface of the annular upper water pan 2 by welding, the top end and the bottom end of the drainage cylinder 801 are provided with openings, the drainage cylinder 801 is communicated with the first annular accommodating cavity 3, a sliding ring 802 is slidably connected in the drainage cylinder 801, an air bag 803 is fixedly sealed with the top surface of the sliding ring 802, the air bag 803 is communicated with the first annular accommodating cavity 3, a counterweight is arranged at the top of the air bag 803, and a second water outlet 804 is arranged on the side wall of the lower part of the drainage cylinder 801.

[0039] In the embodiment, the air bag 803 can comprise three layers of inner layer, middle layer and outer layer, the inner layer and the outer layer are protective layers, the protective layer can be cloth, and the middle layer is a sealing layer, the sealing layer can prevent air from passing through, and the sealing layer can be one of polyethylene, polypropylene, polyfluoroethylene and nylon.

[0040] The cooling hole 101 is arranged on the tool steel inner ring 1, the cooling water flows through the cooling hole 101 to realize cooling, the second annular accommodating cavity 5 arranged in the annular lower water pan 4 is used for being communicated with the plurality of cooling holes 101, the cooling water is introduced into the plurality of cooling holes 101, the first annular accommodating cavity 3 arranged in the annular upper water pan 2 is used for being communicated with the plurality of cooling holes 101, the cooling water in the plurality of cooling holes 101 is concentrated and discharged, the water inlet 6 is arranged to introduce the cooling water into the second accommodating cavity, the first water outlet 7 is arranged to facilitate the discharge of the cooling water in the first annular accommodating cavity 3, the cooling hole 101 and the second annular accommodating cavity 5 when the cooling is finished, and the drainage mechanism 8 is arranged to accelerate the discharge of the cooling water in the annular upper water pan 2 and the cooling hole 101 after the cooling and the temperature reduction are finished.

[0041] When cooling is needed, the first drain port 7 is closed, the sliding ring 802 is located below the second drain port 804, and the second drain port 804 is blocked. The cooling water enters the second annular cavity 5 from the water inlet 6 and slowly flows upward to the cooling hole 101 and the first annular cavity 3. In this process, because there is air in the cooling hole 101 and the first annular cavity 3, and the second drain port 804 is blocked by the sliding ring 802, the air in the cooling hole 101 and the first annular cavity 3 moves upward under the pressure of the cooling water and fills the air bag 803, lifting the counterweight. The cooling water continues to flow upward, lifting the counterweight, the air bag 803 and the sliding ring 802, until the sliding ring 802 moves above the second drain port 804, allowing the first annular cavity 3 to communicate with the outside through the second drain port 804. When the first annular cavity 3 is in communication with the outside, the air in the first annular cavity 3 can be discharged to the outside through the second drain port 804. At the same time, the sliding ring 802 and the counterweight may also slide down due to the communication with the outside. When the sliding ring 802 slides down to isolate the outside from the first annular cavity 3, the sliding ring 802 and the counterweight are lifted again due to the pressure of the cooling water. This process is repeated until the cooling water fills the cooling hole 101 and the first annular cavity 3 and is discharged from the second drain port 804. At this time, the air bag 803 is isolated from the outside by the cooling water.

[0042] When the cooling is finished, the water inlet 6 is closed and the first drain port 7 is opened. Under the action of gravity, the sliding ring 802 and the counterweight fall down. Because the sliding ring 802 is lifted by the cooling water to just expose the second drain port 804, the sliding ring 802 can quickly close the second drain port 804 after falling down. The counterweight continues to fall down under the action of gravity, pressing the air in the air bag 803 and the cooling water in the first annular cavity 3 and the cooling hole 101. Under the pressing of the counterweight, the discharge of the cooling water in the first annular cavity 3 and the cooling hole 101 is accelerated.

[0043] Further, the counterweight includes a pressing rod 805, which is arranged in a vertical direction and has a bottom end fixed to a top end of the air bag 803. By arranging the pressing rod 805, manual pressure can be applied to accelerate the discharge of the cooling water after cooling.

[0044] Further, a first pressing plate 9 is fixed to a top end of the air bag 803, and the first pressing plate 9 is connected with the drain barrel 801 in a sliding manner. The pressing rod 805 is fixedly connected with a top surface of the first pressing plate 9. By arranging the first pressing plate 9, the pressing rod 805 can press the air bag 803 downward to press more air downward.

[0045] Further, a second pressing plate 10 is arranged at a top end of the pressing rod 805. By arranging the second pressing plate 10, the pressing rod 805 can be pressed downward.

[0046] Further, the air bag 803 is provided with a compression spring 11, the top end of the compression spring 11 is fixed with the top end of the air bag 803, the bottom end of the compression spring 11 is fixed with the bottom end of the air bag 803, through the setting of the compression spring 11, the air bag 803 can be supported, when the cooling water is discharged from the second drain port 804, the gas in the air bag 803 can be more, which is convenient for subsequent cooling water to be discharged, the compression spring 11 can be bonded with the air bag 803 by glue.

[0047] Further, the air bag 803 is provided with a compression spring 11, the top end of the compression spring 11 is fixed with the top end of the air bag 803, the bottom end of the compression spring 11 is fixed with the bottom end of the air bag 803, through the setting of the compression spring 11, the air bag 803 can be supported, when the cooling water is discharged from the second drain port 804, the gas in the air bag 803 can be more, which is convenient for subsequent cooling water to be discharged, the compression spring 11 can be bonded with the air bag 803 by glue.

[0048] Further, the air bag 803 is provided with a compression spring 11, the top end of the compression spring 11 is fixed with the top end of the air bag 803, the bottom end of the compression spring 11 is fixed with the bottom end of the air bag 803, through the setting of the compression spring 11, the air bag 803 can be supported, when the cooling water is discharged from the second drain port 804, the gas in the air bag 803 can be more, which is convenient for subsequent cooling water to be discharged, the compression spring 11 can be bonded with the air bag 803 by glue.

[0049] Further, the first drain port 7 is provided with a second one-way valve 13, through the setting of the second one-way valve 13, the cooling water can be discharged from the first drain port 7 at the same time, the outside air is prevented from entering into the second annular cavity 5 through the first drain port 7, when the first pressing plate 9 moves upward, the cooling water in the second annular cavity 5 can be prevented from being pushed into the cooling hole 101 by the air entering into the second annular cavity 5.

[0050] Further, the bottom of the drain cylinder 801 is provided with a first limiting ring 14, the first limiting ring 14 is located below the sliding ring 802, which limits the sliding range of the sliding ring 802, and avoids the sliding ring 802 from falling into the first annular cavity 3.

[0051] Further, the top of the drain cylinder 801 is provided with a second limiting ring 15, the second limiting ring 15 is located above the first pressing plate 9, which limits the sliding range of the first pressing plate 9, and avoids the first pressing plate 9 from sliding out of the drain cylinder 801.

[0052] It needs to be explained that although the utility model discloses the above with specific embodiment, the above embodiment is not used to limit the utility model, and the ordinary skilled person in the art can make various changes and refinements without departing from the spirit and scope of the utility model, therefore the protection scope of the utility model is defined with the claim range.

Claims

1. A cooling structure for a piston cylinder device, characterized by, The utility model relates to a tool steel inner ring cooling device, including: A tool steel inner ring, a plurality of cooling holes are opened in the vertical direction on the top surface of the tool steel inner ring; An annular upper water tray is arranged on the top surface of the tool steel inner ring, and a first annular accommodating cavity is formed in the annular upper water tray, and the first annular accommodating cavity is communicated with the cooling holes; An annular lower water tray is arranged on the bottom surface of the tool steel inner ring, a second annular accommodating cavity is formed in the annular lower water tray, and the second annular accommodating cavity is communicated with the cooling holes, and the bottom of the second annular accommodating cavity is provided with a water inlet and a first water outlet; A drainage mechanism includes a drainage cylinder arranged on the top of the annular upper water tray, the top end and the bottom end of the drainage cylinder are both provided with openings, the drainage cylinder is communicated with the first annular accommodating cavity, a sliding ring is sealingly and slidably connected in the drainage cylinder, a gas bag is sealingly fixed on the top surface of the sliding ring, the gas bag is communicated with the first annular accommodating cavity, a counterweight is arranged on the top of the gas bag, and a second water outlet is formed in the side wall of the lower part of the drainage cylinder.

2. A cooling structure for a piston cylinder device according to claim 1, characterized in that The counterweight includes a pressing rod, the pressing rod is arranged in the vertical direction, and the bottom end of the pressing rod is fixed with the top end of the gas bag.

3. A cooling structure for a piston cylinder device according to claim 2, characterized in that A first pressing plate is fixed on the top end of the gas bag, the first pressing plate is slidably connected with the drainage cylinder, and the pressing rod is fixedly connected with the top surface of the first pressing plate.

4. A cooling structure for a piston cylinder device according to claim 3, characterized in that A second pressing plate is arranged on the top end of the pressing rod.

5. A cooling structure for a piston cylinder device according to claim 1, wherein A compression spring is arranged in the gas bag, the top end of the compression spring is fixed with the top end of the gas bag, and the bottom end of the compression spring is fixed with the bottom end of the gas bag.

6. A cooling structure for a piston cylinder device according to claim 1, wherein The bottom end of the gas bag is provided with an opening, and the bottom end of the gas bag is sealingly connected with the sliding ring, so that the gas bag is communicated with the first annular accommodating cavity.

7. A cooling structure for a piston cylinder device according to claim 3, wherein The top end of the gas bag is provided with an opening, and the top end of the gas bag is sealingly connected with the first pressing plate, and the first pressing plate is provided with a first one-way valve.

8. A cooling structure for a piston cylinder device according to claim 7, characterized in that A second one-way valve is arranged at the first water outlet.

9. A cooling structure for a piston cylinder device according to claim 1, characterized in that A first limiting ring is arranged on the bottom of the drainage cylinder, and the first limiting ring is below the sliding ring.

10. A cooling structure for a piston cylinder device according to claim 3, characterized in that A second limiting ring is arranged on the top of the drainage cylinder, and the second limiting ring is above the first pressing plate.

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