Stable cubic press

Abstract

The utility model relates to the technical field of cubic presses, in particular to a stable cubic press which comprises pressure-bearing beams, connecting blocks connected with the pressure-bearing beams through pin shafts and pressure-bearing beams located on six faces, the adjacent edges of every two adjacent pressure-bearing beams are hinged together, four sets of connecting lugs are distributed on the outer walls of the pressure-bearing beams in a circumferential mode, and the connecting blocks are connected with the pressure-bearing beams through pin shafts. The number of the connecting lugs in each group is at least two, at least two connecting lug pin shaft holes are formed in each connecting lug, and the minimum linear distance from at least one connecting lug pin shaft hole to the center of the hexahedron structure is 0.7-2 times of the minimum vertical distance from the center of the hexahedron structure to the bottom face of the piston cavity. At least one connecting lug pin shaft hole is formed in the rear end of the connecting lug, so that the length of the area, subjected to the tension of the pin shaft, of the connecting lug is obviously increased, the tensile property of the connecting lug can be greatly improved under the condition that the thickness of the connecting lug is not changed, and the stability performance of the cubic press is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of six-sided top press machines, in particular to a stable six-sided top press machine. Background Art

[0002] With the rapid development of global materials science, in the fields of production of industrial diamond or cubic boron nitride and other superhard materials, sintering of diamond or cubic boron nitride, manufacturing of diamond or cubic boron nitride composite sheets, growth of synthetic diamond, etc., the manufacturing process usually requires extremely high synthesis pressure, so the use of large cavity presses is becoming more and more frequent, and the performance requirements are gradually increasing. The large cavity presses commonly used at present mainly include six-sided top presses, among which the tie rod type six-sided top presses are rarely used due to their complex structure, difficult processing and high cost; the hinged six-sided top press has become the main equipment for synthesizing superhard materials such as diamond and cubic boron nitride in China because of its compact structure, low cost, and relatively simple processing and installation.

[0003] When the six-sided top press is working, the six large pistons simultaneously generate a huge thrust toward the middle, causing the six large oil cylinders to be subjected to a reverse force. During the long-term and frequent use of the traditional hinged press, the hinge beam oil cylinder is easily torn from the stressed hinge, causing the oil cylinder to be scrapped. Therefore, in order to increase the service life of the hinge beam, a large oil cylinder bore is generally used with a small oil pressure to achieve the required thrust, that is, to increase the volume of the press and reduce the working pressure of the press. Although this plays a certain role in protecting the hinge beam, the production and use costs of the press are greatly increased due to the enlargement of the volume of the press. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a stable six-sided top press.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A stable six-sided top press comprises a pressure beam, a connecting block connected to the pressure beam through a pin shaft, pressure beams located on six faces, adjacent sides of two adjacent pressure beams are hinged together, four groups of connecting ears are distributed in a circular pattern on the outer wall of the pressure beam, each group of connecting ears has at least two connecting ears, each connecting ear is provided with at least two connecting ear pin shaft holes, and the minimum straight-line distance from at least one connecting ear pin shaft hole to the center of the hexahedral structure is 0.7 to 2 times the minimum vertical distance from the center of the hexahedral structure to the bottom surface of the piston chamber.

[0007] Preferably, there is one connecting block connected to a single set of connecting ears, and the connecting block is inserted between the connecting ears.

[0008] Preferably, there are multiple connection blocks connected to a single set of connection ears, and the connection blocks are connected to the connection ears alternately.

[0009] Preferably, the diameter of the pin shaft hole of the connecting ear located at the rear end of the pressure-bearing beam is larger than the diameter of the pin shaft hole of the connecting ear located at the front end of the pressure-bearing beam.

[0010] The beneficial effects of the utility model are:

[0011] 1. Compared with the traditional hinged six-sided press, the durable six-sided press proposed by the utility model has at least one connecting ear pin shaft hole at the rear end of the connecting ear, so that the length of the area on the connecting ear subjected to the pin shaft tension is significantly increased. Under the condition that the thickness of the connecting ear remains unchanged, the tensile performance of the connecting ear can be greatly improved. The press structure can withstand higher working pressure and improve the stability of the six-sided press. On the other hand, after the connecting ear pin shaft hole on the connecting ear is moved backward, the connecting ear can form a whole with the area on the pressure beam located at the rear of the piston cavity, further improving the tensile performance of the connecting ear.

[0012] 2. The large-cavity six-sided top press structure proposed by the utility model has at least two connecting ear pin shaft holes on the connecting ear. When one end of the connecting block is connected to the connecting ear, the connecting block cannot rotate freely around the pin shaft. When the six-sided top press is assembled, the connecting block cannot rotate, and there is no need to limit the connecting block, thereby improving the installation efficiency. When the six-sided top press is disassembled, the connecting block cannot rotate, thereby preventing the connecting block from suddenly rotating and hitting the operator or other objects, thereby improving the safety of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a three-dimensional structural schematic diagram of a stable six-sided top press proposed by the utility model;

[0014] Figure 2 This is a schematic diagram of the main structure of a stable six-sided top press proposed by the utility model;

[0015] Figure 3 This is a cross-sectional structural schematic diagram of a stable six-sided top press proposed by the utility model;

[0016] Figure 4 A schematic cross-sectional view of adjacent pressure beams of a stable six-sided top press proposed by the utility model Figure 1 ;

[0017] Figure 5 A schematic cross-sectional view of adjacent pressure beams of a stable six-sided top press proposed by the utility model Figure 2 ;

[0018] Figure 6 A schematic cross-sectional view of adjacent pressure beams of a stable six-sided top press proposed by the utility model Figure 3 ;

[0019] Figure 7 A schematic cross-sectional view of adjacent pressure beams of a stable six-sided top press proposed by the utility model Figure 4 .

[0020] In the figure: 1 pressure beam, 2 connecting block, 3 pin shaft, 11 connecting ear, 12 connecting ear pin shaft hole, 13 piston chamber. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] Reference Figure 1-7 A stable six-sided top press comprises a pressure beam 1, a connecting block 2 connected to the pressure beam 1 through a pin 3, the number of the pressure beams 1 is six, the adjacent pressure beams 1 are perpendicular to each other, distributed in six directions, and connected into a hexahedral structure through the pin 3 and the connecting block 2, a piston cavity 13 is opened on the side of the pressure beam 1 facing the center of the hexahedral structure, the piston cavity 13 is used to install components such as a piston, and four groups of connecting ears 11 are distributed circumferentially on the outer wall of the pressure beam 1, and the number of each group of connecting ears 11 is at least There are two, and a connecting ear pin shaft hole 12 is opened on the same axis of each group of connecting ears 11, and at least two connecting ear pin shaft holes 12 are opened on each connecting ear 11. The connecting block 2 is inserted between each group of connecting ears 11, and a connecting block pin shaft hole is opened at the end of the connecting block 2. The pin 3 is inserted in the connecting ear pin shaft hole 12 and the connecting block pin shaft hole. The minimum straight-line distance from at least one connecting ear pin shaft hole 12 to the center of the hexahedral structure is 0.7 times to 2 times the minimum vertical distance from the center of the hexahedral structure to the bottom surface of the piston chamber 13. Figure 4-7 In the embodiment, the number of each group of connecting ears 11 is three. Figure 4 In the middle, there is a connecting ear pin shaft hole 12 close to the bottom surface of the piston chamber 13; Figure 5-6 In the embodiment, there is a connecting ear pin shaft hole 12 located behind the piston chamber 13; Figure 7 In the embodiment, there is a connecting ear pin shaft hole 12 close to the bottom surface of the piston chamber 13, and two connecting ear pin shaft holes 12 are located behind the piston chamber 13.

[0023] There is one connection block 2 connected to a single set of connection ears 11 , and the connection block 2 is inserted between the connection ears 11 .

[0024] There are multiple connection blocks 2 connected to a single set of connection ears 11, and the connection blocks 2 and the connection ears 11 are connected alternately.

[0025] The diameter of the connecting ear pin shaft hole 12 located at the rear end of the pressure beam 1 is larger than the diameter of the connecting ear pin shaft hole 12 located at the front end of the pressure beam 1;

[0026] In the present embodiment, the durable six-sided top press proposed by the utility model, compared with the traditional hinged six-sided top press, has at least one connecting ear pin shaft hole 12 provided at the rear end of the connecting ear 11, so that the length of the area on the connecting ear 11 that is subjected to the tension of the pin shaft 3 is significantly increased. When the thickness of the connecting ear 11 remains unchanged, the tensile performance of the connecting ear 11 can be greatly improved, and the press structure can withstand higher working pressure; on the other hand, after the connecting ear pin shaft hole 12 on the connecting ear 11 is moved backward, the connecting ear 11 can form a whole with the area on the pressure beam 1 located at the rear of the piston cavity 13, thereby further improving the tensile performance of the connecting ear 11.

[0027] The large-cavity six-sided top press structure proposed by the utility model has at least two connecting ear pin shaft holes 12 on the connecting ear 11. When one end of the connecting block 2 is connected to the connecting ear 11, the connecting block 2 cannot rotate freely around the pin shaft 3. When the six-sided top press is assembled, the connecting block 2 cannot rotate, and there is no need to limit the connecting block 2, thereby improving the installation efficiency; when the six-sided top press is disassembled, the connecting block 2 cannot rotate, thereby preventing the connecting block 2 from suddenly rotating and hitting the operator or other objects, thereby improving the safety of the device.

[0028] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A stable six-sided top press, comprising a pressure beam (1), a connecting block (2) connected to the pressure beam (1) through a pin (3), the pressure beams (1) located on six sides, and adjacent sides of two adjacent pressure beams (1) are hinged together, characterized in that: Four groups of connecting ears (11) are circumferentially distributed on the outer wall of the pressure beam (1), each group of connecting ears (11) has at least two connecting ears (11), each connecting ear (11) is provided with at least two connecting ear pin shaft holes (12), and the minimum straight-line distance from at least one connecting ear pin shaft hole (12) to the center of the hexahedral structure is 0.7 to 2 times the minimum vertical distance from the center of the hexahedral structure to the bottom surface of the piston chamber (13).

2. A stable six-sided top press according to claim 1, characterized in that: There is one connection block (2) connected to a single set of connection ears (11), and the connection block (2) is plugged between the connection ears (11).

3. A stable six-sided top press according to claim 1, characterized in that: There are multiple connection blocks (2) connected to a single set of connection ears (11), and the connection blocks (2) and the connection ears (11) are connected alternately.

4. A stable six-sided top press according to claim 2 or 3, characterized in that: The diameter of the connecting ear pin shaft hole (12) located at the rear end of the pressure-bearing beam (1) is larger than the diameter of the connecting ear pin shaft hole (12) located at the front end of the pressure-bearing beam (1).

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